Commit | Line | Data |
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c906108c | 1 | /* Everything about breakpoints, for GDB. |
8926118c | 2 | |
ecd75fc8 | 3 | Copyright (C) 1986-2014 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
a6d9a66e | 21 | #include "arch-utils.h" |
c906108c | 22 | #include <ctype.h> |
776592bf | 23 | #include "hashtab.h" |
c906108c SS |
24 | #include "symtab.h" |
25 | #include "frame.h" | |
26 | #include "breakpoint.h" | |
1042e4c0 | 27 | #include "tracepoint.h" |
c906108c SS |
28 | #include "gdbtypes.h" |
29 | #include "expression.h" | |
30 | #include "gdbcore.h" | |
31 | #include "gdbcmd.h" | |
32 | #include "value.h" | |
33 | #include "command.h" | |
34 | #include "inferior.h" | |
45741a9c | 35 | #include "infrun.h" |
c906108c SS |
36 | #include "gdbthread.h" |
37 | #include "target.h" | |
38 | #include "language.h" | |
0e9f083f | 39 | #include <string.h> |
50f182aa | 40 | #include "gdb-demangle.h" |
0ba1096a | 41 | #include "filenames.h" |
c906108c SS |
42 | #include "annotate.h" |
43 | #include "symfile.h" | |
44 | #include "objfiles.h" | |
0378c332 | 45 | #include "source.h" |
c5f0f3d0 | 46 | #include "linespec.h" |
c94fdfd0 | 47 | #include "completer.h" |
5b7f31a4 | 48 | #include "gdb.h" |
8b93c638 | 49 | #include "ui-out.h" |
e1507482 | 50 | #include "cli/cli-script.h" |
0225421b | 51 | #include "gdb_assert.h" |
fe898f56 | 52 | #include "block.h" |
a77053c2 | 53 | #include "solib.h" |
84acb35a JJ |
54 | #include "solist.h" |
55 | #include "observer.h" | |
60250e8b | 56 | #include "exceptions.h" |
765dc015 | 57 | #include "memattr.h" |
f7f9143b | 58 | #include "ada-lang.h" |
d1aa2f50 | 59 | #include "top.h" |
79a45b7d | 60 | #include "valprint.h" |
4efc6507 | 61 | #include "jit.h" |
a96d9b2e | 62 | #include "xml-syscall.h" |
65d79d4b | 63 | #include "parser-defs.h" |
55aa24fb SDJ |
64 | #include "gdb_regex.h" |
65 | #include "probe.h" | |
e9cafbcc | 66 | #include "cli/cli-utils.h" |
be34f849 | 67 | #include "continuations.h" |
1bfeeb0f JL |
68 | #include "stack.h" |
69 | #include "skip.h" | |
b775012e | 70 | #include "ax-gdb.h" |
e2e4d78b | 71 | #include "dummy-frame.h" |
c906108c | 72 | |
d3ce09f5 SS |
73 | #include "format.h" |
74 | ||
1042e4c0 SS |
75 | /* readline include files */ |
76 | #include "readline/readline.h" | |
77 | #include "readline/history.h" | |
78 | ||
79 | /* readline defines this. */ | |
80 | #undef savestring | |
81 | ||
034dad6f | 82 | #include "mi/mi-common.h" |
6dddc817 | 83 | #include "extension.h" |
104c1213 | 84 | |
e7e8980f YQ |
85 | /* Enums for exception-handling support. */ |
86 | enum exception_event_kind | |
87 | { | |
88 | EX_EVENT_THROW, | |
591f19e8 | 89 | EX_EVENT_RETHROW, |
e7e8980f YQ |
90 | EX_EVENT_CATCH |
91 | }; | |
92 | ||
4a64f543 | 93 | /* Prototypes for local functions. */ |
c906108c | 94 | |
a14ed312 | 95 | static void enable_delete_command (char *, int); |
c906108c | 96 | |
a14ed312 | 97 | static void enable_once_command (char *, int); |
c906108c | 98 | |
816338b5 SS |
99 | static void enable_count_command (char *, int); |
100 | ||
a14ed312 | 101 | static void disable_command (char *, int); |
c906108c | 102 | |
a14ed312 | 103 | static void enable_command (char *, int); |
c906108c | 104 | |
95a42b64 TT |
105 | static void map_breakpoint_numbers (char *, void (*) (struct breakpoint *, |
106 | void *), | |
107 | void *); | |
c906108c | 108 | |
a14ed312 | 109 | static void ignore_command (char *, int); |
c906108c | 110 | |
4efb68b1 | 111 | static int breakpoint_re_set_one (void *); |
c906108c | 112 | |
348d480f PA |
113 | static void breakpoint_re_set_default (struct breakpoint *); |
114 | ||
983af33b SDJ |
115 | static void create_sals_from_address_default (char **, |
116 | struct linespec_result *, | |
117 | enum bptype, char *, | |
118 | char **); | |
119 | ||
120 | static void create_breakpoints_sal_default (struct gdbarch *, | |
121 | struct linespec_result *, | |
e7e0cddf | 122 | char *, char *, enum bptype, |
983af33b SDJ |
123 | enum bpdisp, int, int, |
124 | int, | |
125 | const struct breakpoint_ops *, | |
44f238bb | 126 | int, int, int, unsigned); |
983af33b SDJ |
127 | |
128 | static void decode_linespec_default (struct breakpoint *, char **, | |
129 | struct symtabs_and_lines *); | |
130 | ||
a14ed312 | 131 | static void clear_command (char *, int); |
c906108c | 132 | |
a14ed312 | 133 | static void catch_command (char *, int); |
c906108c | 134 | |
a9634178 | 135 | static int can_use_hardware_watchpoint (struct value *); |
c906108c | 136 | |
98deb0da | 137 | static void break_command_1 (char *, int, int); |
c906108c | 138 | |
a14ed312 | 139 | static void mention (struct breakpoint *); |
c906108c | 140 | |
348d480f PA |
141 | static struct breakpoint *set_raw_breakpoint_without_location (struct gdbarch *, |
142 | enum bptype, | |
c0a91b2b | 143 | const struct breakpoint_ops *); |
3742cc8b YQ |
144 | static struct bp_location *add_location_to_breakpoint (struct breakpoint *, |
145 | const struct symtab_and_line *); | |
146 | ||
4a64f543 MS |
147 | /* This function is used in gdbtk sources and thus can not be made |
148 | static. */ | |
63c252f8 | 149 | struct breakpoint *set_raw_breakpoint (struct gdbarch *gdbarch, |
348d480f | 150 | struct symtab_and_line, |
c0a91b2b TT |
151 | enum bptype, |
152 | const struct breakpoint_ops *); | |
c906108c | 153 | |
06edf0c0 PA |
154 | static struct breakpoint * |
155 | momentary_breakpoint_from_master (struct breakpoint *orig, | |
156 | enum bptype type, | |
c0a91b2b | 157 | const struct breakpoint_ops *ops); |
06edf0c0 | 158 | |
76897487 KB |
159 | static void breakpoint_adjustment_warning (CORE_ADDR, CORE_ADDR, int, int); |
160 | ||
a6d9a66e UW |
161 | static CORE_ADDR adjust_breakpoint_address (struct gdbarch *gdbarch, |
162 | CORE_ADDR bpaddr, | |
88f7da05 | 163 | enum bptype bptype); |
76897487 | 164 | |
6c95b8df PA |
165 | static void describe_other_breakpoints (struct gdbarch *, |
166 | struct program_space *, CORE_ADDR, | |
5af949e3 | 167 | struct obj_section *, int); |
c906108c | 168 | |
85d721b8 PA |
169 | static int watchpoint_locations_match (struct bp_location *loc1, |
170 | struct bp_location *loc2); | |
171 | ||
f1310107 TJB |
172 | static int breakpoint_location_address_match (struct bp_location *bl, |
173 | struct address_space *aspace, | |
174 | CORE_ADDR addr); | |
175 | ||
a14ed312 | 176 | static void breakpoints_info (char *, int); |
c906108c | 177 | |
d77f58be SS |
178 | static void watchpoints_info (char *, int); |
179 | ||
e5a67952 MS |
180 | static int breakpoint_1 (char *, int, |
181 | int (*) (const struct breakpoint *)); | |
c906108c | 182 | |
4efb68b1 | 183 | static int breakpoint_cond_eval (void *); |
c906108c | 184 | |
4efb68b1 | 185 | static void cleanup_executing_breakpoints (void *); |
c906108c | 186 | |
a14ed312 | 187 | static void commands_command (char *, int); |
c906108c | 188 | |
a14ed312 | 189 | static void condition_command (char *, int); |
c906108c | 190 | |
c5aa993b JM |
191 | typedef enum |
192 | { | |
193 | mark_inserted, | |
194 | mark_uninserted | |
195 | } | |
196 | insertion_state_t; | |
c906108c | 197 | |
0bde7532 | 198 | static int remove_breakpoint (struct bp_location *, insertion_state_t); |
6c95b8df | 199 | static int remove_breakpoint_1 (struct bp_location *, insertion_state_t); |
c906108c | 200 | |
e514a9d6 | 201 | static enum print_stop_action print_bp_stop_message (bpstat bs); |
c906108c | 202 | |
4efb68b1 | 203 | static int watchpoint_check (void *); |
c906108c | 204 | |
a14ed312 | 205 | static void maintenance_info_breakpoints (char *, int); |
c906108c | 206 | |
a14ed312 | 207 | static int hw_breakpoint_used_count (void); |
c906108c | 208 | |
a1398e0c PA |
209 | static int hw_watchpoint_use_count (struct breakpoint *); |
210 | ||
211 | static int hw_watchpoint_used_count_others (struct breakpoint *except, | |
212 | enum bptype type, | |
213 | int *other_type_used); | |
c906108c | 214 | |
a14ed312 | 215 | static void hbreak_command (char *, int); |
c906108c | 216 | |
a14ed312 | 217 | static void thbreak_command (char *, int); |
c906108c | 218 | |
816338b5 SS |
219 | static void enable_breakpoint_disp (struct breakpoint *, enum bpdisp, |
220 | int count); | |
c906108c | 221 | |
a14ed312 | 222 | static void stop_command (char *arg, int from_tty); |
7a292a7a | 223 | |
a14ed312 | 224 | static void stopin_command (char *arg, int from_tty); |
7a292a7a | 225 | |
a14ed312 | 226 | static void stopat_command (char *arg, int from_tty); |
7a292a7a | 227 | |
a14ed312 | 228 | static void tcatch_command (char *arg, int from_tty); |
7a292a7a | 229 | |
d03285ec UW |
230 | static void detach_single_step_breakpoints (void); |
231 | ||
ef370185 JB |
232 | static int find_single_step_breakpoint (struct address_space *aspace, |
233 | CORE_ADDR pc); | |
234 | ||
fe3f5fa8 | 235 | static void free_bp_location (struct bp_location *loc); |
f431efe5 PA |
236 | static void incref_bp_location (struct bp_location *loc); |
237 | static void decref_bp_location (struct bp_location **loc); | |
fe3f5fa8 | 238 | |
39d61571 | 239 | static struct bp_location *allocate_bp_location (struct breakpoint *bpt); |
a5606eee | 240 | |
b60e7edf | 241 | static void update_global_location_list (int); |
a5606eee | 242 | |
b60e7edf | 243 | static void update_global_location_list_nothrow (int); |
74960c60 | 244 | |
d77f58be | 245 | static int is_hardware_watchpoint (const struct breakpoint *bpt); |
74960c60 VP |
246 | |
247 | static void insert_breakpoint_locations (void); | |
a5606eee | 248 | |
a96d9b2e SDJ |
249 | static int syscall_catchpoint_p (struct breakpoint *b); |
250 | ||
1042e4c0 SS |
251 | static void tracepoints_info (char *, int); |
252 | ||
253 | static void delete_trace_command (char *, int); | |
254 | ||
255 | static void enable_trace_command (char *, int); | |
256 | ||
257 | static void disable_trace_command (char *, int); | |
258 | ||
259 | static void trace_pass_command (char *, int); | |
260 | ||
558a9d82 YQ |
261 | static void set_tracepoint_count (int num); |
262 | ||
9c06b0b4 TJB |
263 | static int is_masked_watchpoint (const struct breakpoint *b); |
264 | ||
b775012e LM |
265 | static struct bp_location **get_first_locp_gte_addr (CORE_ADDR address); |
266 | ||
983af33b SDJ |
267 | /* Return 1 if B refers to a static tracepoint set by marker ("-m"), zero |
268 | otherwise. */ | |
269 | ||
270 | static int strace_marker_p (struct breakpoint *b); | |
0fb4aa4b | 271 | |
2060206e PA |
272 | /* The abstract base class all breakpoint_ops structures inherit |
273 | from. */ | |
ab04a2af | 274 | struct breakpoint_ops base_breakpoint_ops; |
2060206e PA |
275 | |
276 | /* The breakpoint_ops structure to be inherited by all breakpoint_ops | |
277 | that are implemented on top of software or hardware breakpoints | |
278 | (user breakpoints, internal and momentary breakpoints, etc.). */ | |
279 | static struct breakpoint_ops bkpt_base_breakpoint_ops; | |
280 | ||
281 | /* Internal breakpoints class type. */ | |
06edf0c0 | 282 | static struct breakpoint_ops internal_breakpoint_ops; |
2060206e PA |
283 | |
284 | /* Momentary breakpoints class type. */ | |
06edf0c0 PA |
285 | static struct breakpoint_ops momentary_breakpoint_ops; |
286 | ||
e2e4d78b JK |
287 | /* Momentary breakpoints for bp_longjmp and bp_exception class type. */ |
288 | static struct breakpoint_ops longjmp_breakpoint_ops; | |
289 | ||
2060206e PA |
290 | /* The breakpoint_ops structure to be used in regular user created |
291 | breakpoints. */ | |
292 | struct breakpoint_ops bkpt_breakpoint_ops; | |
293 | ||
55aa24fb SDJ |
294 | /* Breakpoints set on probes. */ |
295 | static struct breakpoint_ops bkpt_probe_breakpoint_ops; | |
296 | ||
e7e0cddf | 297 | /* Dynamic printf class type. */ |
c5867ab6 | 298 | struct breakpoint_ops dprintf_breakpoint_ops; |
e7e0cddf | 299 | |
9d497a19 PA |
300 | /* One (or perhaps two) breakpoints used for software single |
301 | stepping. */ | |
302 | ||
303 | static void *single_step_breakpoints[2]; | |
304 | static struct gdbarch *single_step_gdbarch[2]; | |
305 | ||
d3ce09f5 SS |
306 | /* The style in which to perform a dynamic printf. This is a user |
307 | option because different output options have different tradeoffs; | |
308 | if GDB does the printing, there is better error handling if there | |
309 | is a problem with any of the arguments, but using an inferior | |
310 | function lets you have special-purpose printers and sending of | |
311 | output to the same place as compiled-in print functions. */ | |
312 | ||
313 | static const char dprintf_style_gdb[] = "gdb"; | |
314 | static const char dprintf_style_call[] = "call"; | |
315 | static const char dprintf_style_agent[] = "agent"; | |
316 | static const char *const dprintf_style_enums[] = { | |
317 | dprintf_style_gdb, | |
318 | dprintf_style_call, | |
319 | dprintf_style_agent, | |
320 | NULL | |
321 | }; | |
322 | static const char *dprintf_style = dprintf_style_gdb; | |
323 | ||
324 | /* The function to use for dynamic printf if the preferred style is to | |
325 | call into the inferior. The value is simply a string that is | |
326 | copied into the command, so it can be anything that GDB can | |
327 | evaluate to a callable address, not necessarily a function name. */ | |
328 | ||
329 | static char *dprintf_function = ""; | |
330 | ||
331 | /* The channel to use for dynamic printf if the preferred style is to | |
332 | call into the inferior; if a nonempty string, it will be passed to | |
333 | the call as the first argument, with the format string as the | |
334 | second. As with the dprintf function, this can be anything that | |
335 | GDB knows how to evaluate, so in addition to common choices like | |
336 | "stderr", this could be an app-specific expression like | |
337 | "mystreams[curlogger]". */ | |
338 | ||
339 | static char *dprintf_channel = ""; | |
340 | ||
341 | /* True if dprintf commands should continue to operate even if GDB | |
342 | has disconnected. */ | |
343 | static int disconnected_dprintf = 1; | |
344 | ||
5cea2a26 PA |
345 | /* A reference-counted struct command_line. This lets multiple |
346 | breakpoints share a single command list. */ | |
347 | struct counted_command_line | |
348 | { | |
349 | /* The reference count. */ | |
350 | int refc; | |
351 | ||
352 | /* The command list. */ | |
353 | struct command_line *commands; | |
354 | }; | |
355 | ||
356 | struct command_line * | |
357 | breakpoint_commands (struct breakpoint *b) | |
358 | { | |
359 | return b->commands ? b->commands->commands : NULL; | |
360 | } | |
3daf8fe5 | 361 | |
f3b1572e PA |
362 | /* Flag indicating that a command has proceeded the inferior past the |
363 | current breakpoint. */ | |
364 | ||
365 | static int breakpoint_proceeded; | |
366 | ||
956a9fb9 | 367 | const char * |
2cec12e5 AR |
368 | bpdisp_text (enum bpdisp disp) |
369 | { | |
4a64f543 MS |
370 | /* NOTE: the following values are a part of MI protocol and |
371 | represent values of 'disp' field returned when inferior stops at | |
372 | a breakpoint. */ | |
bc043ef3 | 373 | static const char * const bpdisps[] = {"del", "dstp", "dis", "keep"}; |
cc59ec59 | 374 | |
2cec12e5 AR |
375 | return bpdisps[(int) disp]; |
376 | } | |
c906108c | 377 | |
4a64f543 | 378 | /* Prototypes for exported functions. */ |
c906108c | 379 | /* If FALSE, gdb will not use hardware support for watchpoints, even |
4a64f543 | 380 | if such is available. */ |
c906108c SS |
381 | static int can_use_hw_watchpoints; |
382 | ||
920d2a44 AC |
383 | static void |
384 | show_can_use_hw_watchpoints (struct ui_file *file, int from_tty, | |
385 | struct cmd_list_element *c, | |
386 | const char *value) | |
387 | { | |
3e43a32a MS |
388 | fprintf_filtered (file, |
389 | _("Debugger's willingness to use " | |
390 | "watchpoint hardware is %s.\n"), | |
920d2a44 AC |
391 | value); |
392 | } | |
393 | ||
fa8d40ab JJ |
394 | /* If AUTO_BOOLEAN_FALSE, gdb will not attempt to create pending breakpoints. |
395 | If AUTO_BOOLEAN_TRUE, gdb will automatically create pending breakpoints | |
4a64f543 | 396 | for unrecognized breakpoint locations. |
fa8d40ab JJ |
397 | If AUTO_BOOLEAN_AUTO, gdb will query when breakpoints are unrecognized. */ |
398 | static enum auto_boolean pending_break_support; | |
920d2a44 AC |
399 | static void |
400 | show_pending_break_support (struct ui_file *file, int from_tty, | |
401 | struct cmd_list_element *c, | |
402 | const char *value) | |
403 | { | |
3e43a32a MS |
404 | fprintf_filtered (file, |
405 | _("Debugger's behavior regarding " | |
406 | "pending breakpoints is %s.\n"), | |
920d2a44 AC |
407 | value); |
408 | } | |
fa8d40ab | 409 | |
765dc015 | 410 | /* If 1, gdb will automatically use hardware breakpoints for breakpoints |
4a64f543 | 411 | set with "break" but falling in read-only memory. |
765dc015 VP |
412 | If 0, gdb will warn about such breakpoints, but won't automatically |
413 | use hardware breakpoints. */ | |
414 | static int automatic_hardware_breakpoints; | |
415 | static void | |
416 | show_automatic_hardware_breakpoints (struct ui_file *file, int from_tty, | |
417 | struct cmd_list_element *c, | |
418 | const char *value) | |
419 | { | |
3e43a32a MS |
420 | fprintf_filtered (file, |
421 | _("Automatic usage of hardware breakpoints is %s.\n"), | |
765dc015 VP |
422 | value); |
423 | } | |
424 | ||
33e5cbd6 PA |
425 | /* If on, gdb will keep breakpoints inserted even as inferior is |
426 | stopped, and immediately insert any new breakpoints. If off, gdb | |
427 | will insert breakpoints into inferior only when resuming it, and | |
428 | will remove breakpoints upon stop. If auto, GDB will behave as ON | |
429 | if in non-stop mode, and as OFF if all-stop mode.*/ | |
430 | ||
72d0e2c5 YQ |
431 | static enum auto_boolean always_inserted_mode = AUTO_BOOLEAN_AUTO; |
432 | ||
33e5cbd6 | 433 | static void |
74960c60 | 434 | show_always_inserted_mode (struct ui_file *file, int from_tty, |
33e5cbd6 | 435 | struct cmd_list_element *c, const char *value) |
74960c60 | 436 | { |
72d0e2c5 | 437 | if (always_inserted_mode == AUTO_BOOLEAN_AUTO) |
3e43a32a MS |
438 | fprintf_filtered (file, |
439 | _("Always inserted breakpoint " | |
440 | "mode is %s (currently %s).\n"), | |
33e5cbd6 PA |
441 | value, |
442 | breakpoints_always_inserted_mode () ? "on" : "off"); | |
443 | else | |
3e43a32a MS |
444 | fprintf_filtered (file, _("Always inserted breakpoint mode is %s.\n"), |
445 | value); | |
74960c60 VP |
446 | } |
447 | ||
33e5cbd6 PA |
448 | int |
449 | breakpoints_always_inserted_mode (void) | |
450 | { | |
72d0e2c5 YQ |
451 | return (always_inserted_mode == AUTO_BOOLEAN_TRUE |
452 | || (always_inserted_mode == AUTO_BOOLEAN_AUTO && non_stop)); | |
33e5cbd6 | 453 | } |
765dc015 | 454 | |
b775012e LM |
455 | static const char condition_evaluation_both[] = "host or target"; |
456 | ||
457 | /* Modes for breakpoint condition evaluation. */ | |
458 | static const char condition_evaluation_auto[] = "auto"; | |
459 | static const char condition_evaluation_host[] = "host"; | |
460 | static const char condition_evaluation_target[] = "target"; | |
461 | static const char *const condition_evaluation_enums[] = { | |
462 | condition_evaluation_auto, | |
463 | condition_evaluation_host, | |
464 | condition_evaluation_target, | |
465 | NULL | |
466 | }; | |
467 | ||
468 | /* Global that holds the current mode for breakpoint condition evaluation. */ | |
469 | static const char *condition_evaluation_mode_1 = condition_evaluation_auto; | |
470 | ||
471 | /* Global that we use to display information to the user (gets its value from | |
472 | condition_evaluation_mode_1. */ | |
473 | static const char *condition_evaluation_mode = condition_evaluation_auto; | |
474 | ||
475 | /* Translate a condition evaluation mode MODE into either "host" | |
476 | or "target". This is used mostly to translate from "auto" to the | |
477 | real setting that is being used. It returns the translated | |
478 | evaluation mode. */ | |
479 | ||
480 | static const char * | |
481 | translate_condition_evaluation_mode (const char *mode) | |
482 | { | |
483 | if (mode == condition_evaluation_auto) | |
484 | { | |
485 | if (target_supports_evaluation_of_breakpoint_conditions ()) | |
486 | return condition_evaluation_target; | |
487 | else | |
488 | return condition_evaluation_host; | |
489 | } | |
490 | else | |
491 | return mode; | |
492 | } | |
493 | ||
494 | /* Discovers what condition_evaluation_auto translates to. */ | |
495 | ||
496 | static const char * | |
497 | breakpoint_condition_evaluation_mode (void) | |
498 | { | |
499 | return translate_condition_evaluation_mode (condition_evaluation_mode); | |
500 | } | |
501 | ||
502 | /* Return true if GDB should evaluate breakpoint conditions or false | |
503 | otherwise. */ | |
504 | ||
505 | static int | |
506 | gdb_evaluates_breakpoint_condition_p (void) | |
507 | { | |
508 | const char *mode = breakpoint_condition_evaluation_mode (); | |
509 | ||
510 | return (mode == condition_evaluation_host); | |
511 | } | |
512 | ||
a14ed312 | 513 | void _initialize_breakpoint (void); |
c906108c | 514 | |
c906108c SS |
515 | /* Are we executing breakpoint commands? */ |
516 | static int executing_breakpoint_commands; | |
517 | ||
c02f5703 MS |
518 | /* Are overlay event breakpoints enabled? */ |
519 | static int overlay_events_enabled; | |
520 | ||
e09342b5 TJB |
521 | /* See description in breakpoint.h. */ |
522 | int target_exact_watchpoints = 0; | |
523 | ||
c906108c | 524 | /* Walk the following statement or block through all breakpoints. |
e5dd4106 | 525 | ALL_BREAKPOINTS_SAFE does so even if the statement deletes the |
4a64f543 | 526 | current breakpoint. */ |
c906108c | 527 | |
5c44784c | 528 | #define ALL_BREAKPOINTS(B) for (B = breakpoint_chain; B; B = B->next) |
c906108c | 529 | |
5c44784c JM |
530 | #define ALL_BREAKPOINTS_SAFE(B,TMP) \ |
531 | for (B = breakpoint_chain; \ | |
532 | B ? (TMP=B->next, 1): 0; \ | |
533 | B = TMP) | |
c906108c | 534 | |
4a64f543 MS |
535 | /* Similar iterator for the low-level breakpoints. SAFE variant is |
536 | not provided so update_global_location_list must not be called | |
537 | while executing the block of ALL_BP_LOCATIONS. */ | |
7cc221ef | 538 | |
876fa593 JK |
539 | #define ALL_BP_LOCATIONS(B,BP_TMP) \ |
540 | for (BP_TMP = bp_location; \ | |
541 | BP_TMP < bp_location + bp_location_count && (B = *BP_TMP); \ | |
542 | BP_TMP++) | |
7cc221ef | 543 | |
b775012e LM |
544 | /* Iterates through locations with address ADDRESS for the currently selected |
545 | program space. BP_LOCP_TMP points to each object. BP_LOCP_START points | |
546 | to where the loop should start from. | |
547 | If BP_LOCP_START is a NULL pointer, the macro automatically seeks the | |
548 | appropriate location to start with. */ | |
549 | ||
550 | #define ALL_BP_LOCATIONS_AT_ADDR(BP_LOCP_TMP, BP_LOCP_START, ADDRESS) \ | |
551 | for (BP_LOCP_START = BP_LOCP_START == NULL ? get_first_locp_gte_addr (ADDRESS) : BP_LOCP_START, \ | |
552 | BP_LOCP_TMP = BP_LOCP_START; \ | |
553 | BP_LOCP_START \ | |
554 | && (BP_LOCP_TMP < bp_location + bp_location_count \ | |
555 | && (*BP_LOCP_TMP)->address == ADDRESS); \ | |
556 | BP_LOCP_TMP++) | |
557 | ||
1042e4c0 SS |
558 | /* Iterator for tracepoints only. */ |
559 | ||
560 | #define ALL_TRACEPOINTS(B) \ | |
561 | for (B = breakpoint_chain; B; B = B->next) \ | |
d77f58be | 562 | if (is_tracepoint (B)) |
1042e4c0 | 563 | |
7cc221ef | 564 | /* Chains of all breakpoints defined. */ |
c906108c SS |
565 | |
566 | struct breakpoint *breakpoint_chain; | |
567 | ||
876fa593 JK |
568 | /* Array is sorted by bp_location_compare - primarily by the ADDRESS. */ |
569 | ||
570 | static struct bp_location **bp_location; | |
571 | ||
572 | /* Number of elements of BP_LOCATION. */ | |
573 | ||
574 | static unsigned bp_location_count; | |
575 | ||
4a64f543 MS |
576 | /* Maximum alignment offset between bp_target_info.PLACED_ADDRESS and |
577 | ADDRESS for the current elements of BP_LOCATION which get a valid | |
578 | result from bp_location_has_shadow. You can use it for roughly | |
579 | limiting the subrange of BP_LOCATION to scan for shadow bytes for | |
580 | an address you need to read. */ | |
876fa593 JK |
581 | |
582 | static CORE_ADDR bp_location_placed_address_before_address_max; | |
583 | ||
4a64f543 MS |
584 | /* Maximum offset plus alignment between bp_target_info.PLACED_ADDRESS |
585 | + bp_target_info.SHADOW_LEN and ADDRESS for the current elements of | |
586 | BP_LOCATION which get a valid result from bp_location_has_shadow. | |
587 | You can use it for roughly limiting the subrange of BP_LOCATION to | |
588 | scan for shadow bytes for an address you need to read. */ | |
876fa593 JK |
589 | |
590 | static CORE_ADDR bp_location_shadow_len_after_address_max; | |
7cc221ef | 591 | |
4a64f543 MS |
592 | /* The locations that no longer correspond to any breakpoint, unlinked |
593 | from bp_location array, but for which a hit may still be reported | |
594 | by a target. */ | |
20874c92 VP |
595 | VEC(bp_location_p) *moribund_locations = NULL; |
596 | ||
c906108c SS |
597 | /* Number of last breakpoint made. */ |
598 | ||
95a42b64 TT |
599 | static int breakpoint_count; |
600 | ||
86b17b60 PA |
601 | /* The value of `breakpoint_count' before the last command that |
602 | created breakpoints. If the last (break-like) command created more | |
603 | than one breakpoint, then the difference between BREAKPOINT_COUNT | |
604 | and PREV_BREAKPOINT_COUNT is more than one. */ | |
605 | static int prev_breakpoint_count; | |
c906108c | 606 | |
1042e4c0 SS |
607 | /* Number of last tracepoint made. */ |
608 | ||
95a42b64 | 609 | static int tracepoint_count; |
1042e4c0 | 610 | |
6149aea9 PA |
611 | static struct cmd_list_element *breakpoint_set_cmdlist; |
612 | static struct cmd_list_element *breakpoint_show_cmdlist; | |
9291a0cd | 613 | struct cmd_list_element *save_cmdlist; |
6149aea9 | 614 | |
468d015d JJ |
615 | /* Return whether a breakpoint is an active enabled breakpoint. */ |
616 | static int | |
617 | breakpoint_enabled (struct breakpoint *b) | |
618 | { | |
0d381245 | 619 | return (b->enable_state == bp_enabled); |
468d015d JJ |
620 | } |
621 | ||
c906108c SS |
622 | /* Set breakpoint count to NUM. */ |
623 | ||
95a42b64 | 624 | static void |
fba45db2 | 625 | set_breakpoint_count (int num) |
c906108c | 626 | { |
86b17b60 | 627 | prev_breakpoint_count = breakpoint_count; |
c906108c | 628 | breakpoint_count = num; |
4fa62494 | 629 | set_internalvar_integer (lookup_internalvar ("bpnum"), num); |
c906108c SS |
630 | } |
631 | ||
86b17b60 PA |
632 | /* Used by `start_rbreak_breakpoints' below, to record the current |
633 | breakpoint count before "rbreak" creates any breakpoint. */ | |
634 | static int rbreak_start_breakpoint_count; | |
635 | ||
95a42b64 TT |
636 | /* Called at the start an "rbreak" command to record the first |
637 | breakpoint made. */ | |
86b17b60 | 638 | |
95a42b64 TT |
639 | void |
640 | start_rbreak_breakpoints (void) | |
641 | { | |
86b17b60 | 642 | rbreak_start_breakpoint_count = breakpoint_count; |
95a42b64 TT |
643 | } |
644 | ||
645 | /* Called at the end of an "rbreak" command to record the last | |
646 | breakpoint made. */ | |
86b17b60 | 647 | |
95a42b64 TT |
648 | void |
649 | end_rbreak_breakpoints (void) | |
650 | { | |
86b17b60 | 651 | prev_breakpoint_count = rbreak_start_breakpoint_count; |
95a42b64 TT |
652 | } |
653 | ||
4a64f543 | 654 | /* Used in run_command to zero the hit count when a new run starts. */ |
c906108c SS |
655 | |
656 | void | |
fba45db2 | 657 | clear_breakpoint_hit_counts (void) |
c906108c SS |
658 | { |
659 | struct breakpoint *b; | |
660 | ||
661 | ALL_BREAKPOINTS (b) | |
662 | b->hit_count = 0; | |
663 | } | |
664 | ||
9add0f1b TT |
665 | /* Allocate a new counted_command_line with reference count of 1. |
666 | The new structure owns COMMANDS. */ | |
667 | ||
668 | static struct counted_command_line * | |
669 | alloc_counted_command_line (struct command_line *commands) | |
670 | { | |
671 | struct counted_command_line *result | |
672 | = xmalloc (sizeof (struct counted_command_line)); | |
cc59ec59 | 673 | |
9add0f1b TT |
674 | result->refc = 1; |
675 | result->commands = commands; | |
676 | return result; | |
677 | } | |
678 | ||
679 | /* Increment reference count. This does nothing if CMD is NULL. */ | |
680 | ||
681 | static void | |
682 | incref_counted_command_line (struct counted_command_line *cmd) | |
683 | { | |
684 | if (cmd) | |
685 | ++cmd->refc; | |
686 | } | |
687 | ||
688 | /* Decrement reference count. If the reference count reaches 0, | |
689 | destroy the counted_command_line. Sets *CMDP to NULL. This does | |
690 | nothing if *CMDP is NULL. */ | |
691 | ||
692 | static void | |
693 | decref_counted_command_line (struct counted_command_line **cmdp) | |
694 | { | |
695 | if (*cmdp) | |
696 | { | |
697 | if (--(*cmdp)->refc == 0) | |
698 | { | |
699 | free_command_lines (&(*cmdp)->commands); | |
700 | xfree (*cmdp); | |
701 | } | |
702 | *cmdp = NULL; | |
703 | } | |
704 | } | |
705 | ||
706 | /* A cleanup function that calls decref_counted_command_line. */ | |
707 | ||
708 | static void | |
709 | do_cleanup_counted_command_line (void *arg) | |
710 | { | |
711 | decref_counted_command_line (arg); | |
712 | } | |
713 | ||
714 | /* Create a cleanup that calls decref_counted_command_line on the | |
715 | argument. */ | |
716 | ||
717 | static struct cleanup * | |
718 | make_cleanup_decref_counted_command_line (struct counted_command_line **cmdp) | |
719 | { | |
720 | return make_cleanup (do_cleanup_counted_command_line, cmdp); | |
721 | } | |
722 | ||
c906108c | 723 | \f |
48cb2d85 VP |
724 | /* Return the breakpoint with the specified number, or NULL |
725 | if the number does not refer to an existing breakpoint. */ | |
726 | ||
727 | struct breakpoint * | |
728 | get_breakpoint (int num) | |
729 | { | |
730 | struct breakpoint *b; | |
731 | ||
732 | ALL_BREAKPOINTS (b) | |
733 | if (b->number == num) | |
734 | return b; | |
735 | ||
736 | return NULL; | |
737 | } | |
5c44784c | 738 | |
c906108c | 739 | \f |
adc36818 | 740 | |
b775012e LM |
741 | /* Mark locations as "conditions have changed" in case the target supports |
742 | evaluating conditions on its side. */ | |
743 | ||
744 | static void | |
745 | mark_breakpoint_modified (struct breakpoint *b) | |
746 | { | |
747 | struct bp_location *loc; | |
748 | ||
749 | /* This is only meaningful if the target is | |
750 | evaluating conditions and if the user has | |
751 | opted for condition evaluation on the target's | |
752 | side. */ | |
753 | if (gdb_evaluates_breakpoint_condition_p () | |
754 | || !target_supports_evaluation_of_breakpoint_conditions ()) | |
755 | return; | |
756 | ||
757 | if (!is_breakpoint (b)) | |
758 | return; | |
759 | ||
760 | for (loc = b->loc; loc; loc = loc->next) | |
761 | loc->condition_changed = condition_modified; | |
762 | } | |
763 | ||
764 | /* Mark location as "conditions have changed" in case the target supports | |
765 | evaluating conditions on its side. */ | |
766 | ||
767 | static void | |
768 | mark_breakpoint_location_modified (struct bp_location *loc) | |
769 | { | |
770 | /* This is only meaningful if the target is | |
771 | evaluating conditions and if the user has | |
772 | opted for condition evaluation on the target's | |
773 | side. */ | |
774 | if (gdb_evaluates_breakpoint_condition_p () | |
775 | || !target_supports_evaluation_of_breakpoint_conditions ()) | |
776 | ||
777 | return; | |
778 | ||
779 | if (!is_breakpoint (loc->owner)) | |
780 | return; | |
781 | ||
782 | loc->condition_changed = condition_modified; | |
783 | } | |
784 | ||
785 | /* Sets the condition-evaluation mode using the static global | |
786 | condition_evaluation_mode. */ | |
787 | ||
788 | static void | |
789 | set_condition_evaluation_mode (char *args, int from_tty, | |
790 | struct cmd_list_element *c) | |
791 | { | |
b775012e LM |
792 | const char *old_mode, *new_mode; |
793 | ||
794 | if ((condition_evaluation_mode_1 == condition_evaluation_target) | |
795 | && !target_supports_evaluation_of_breakpoint_conditions ()) | |
796 | { | |
797 | condition_evaluation_mode_1 = condition_evaluation_mode; | |
798 | warning (_("Target does not support breakpoint condition evaluation.\n" | |
799 | "Using host evaluation mode instead.")); | |
800 | return; | |
801 | } | |
802 | ||
803 | new_mode = translate_condition_evaluation_mode (condition_evaluation_mode_1); | |
804 | old_mode = translate_condition_evaluation_mode (condition_evaluation_mode); | |
805 | ||
abf1152a JK |
806 | /* Flip the switch. Flip it even if OLD_MODE == NEW_MODE as one of the |
807 | settings was "auto". */ | |
808 | condition_evaluation_mode = condition_evaluation_mode_1; | |
809 | ||
b775012e LM |
810 | /* Only update the mode if the user picked a different one. */ |
811 | if (new_mode != old_mode) | |
812 | { | |
813 | struct bp_location *loc, **loc_tmp; | |
814 | /* If the user switched to a different evaluation mode, we | |
815 | need to synch the changes with the target as follows: | |
816 | ||
817 | "host" -> "target": Send all (valid) conditions to the target. | |
818 | "target" -> "host": Remove all the conditions from the target. | |
819 | */ | |
820 | ||
b775012e LM |
821 | if (new_mode == condition_evaluation_target) |
822 | { | |
823 | /* Mark everything modified and synch conditions with the | |
824 | target. */ | |
825 | ALL_BP_LOCATIONS (loc, loc_tmp) | |
826 | mark_breakpoint_location_modified (loc); | |
827 | } | |
828 | else | |
829 | { | |
830 | /* Manually mark non-duplicate locations to synch conditions | |
831 | with the target. We do this to remove all the conditions the | |
832 | target knows about. */ | |
833 | ALL_BP_LOCATIONS (loc, loc_tmp) | |
834 | if (is_breakpoint (loc->owner) && loc->inserted) | |
835 | loc->needs_update = 1; | |
836 | } | |
837 | ||
838 | /* Do the update. */ | |
839 | update_global_location_list (1); | |
840 | } | |
841 | ||
842 | return; | |
843 | } | |
844 | ||
845 | /* Shows the current mode of breakpoint condition evaluation. Explicitly shows | |
846 | what "auto" is translating to. */ | |
847 | ||
848 | static void | |
849 | show_condition_evaluation_mode (struct ui_file *file, int from_tty, | |
850 | struct cmd_list_element *c, const char *value) | |
851 | { | |
852 | if (condition_evaluation_mode == condition_evaluation_auto) | |
853 | fprintf_filtered (file, | |
854 | _("Breakpoint condition evaluation " | |
855 | "mode is %s (currently %s).\n"), | |
856 | value, | |
857 | breakpoint_condition_evaluation_mode ()); | |
858 | else | |
859 | fprintf_filtered (file, _("Breakpoint condition evaluation mode is %s.\n"), | |
860 | value); | |
861 | } | |
862 | ||
863 | /* A comparison function for bp_location AP and BP that is used by | |
864 | bsearch. This comparison function only cares about addresses, unlike | |
865 | the more general bp_location_compare function. */ | |
866 | ||
867 | static int | |
868 | bp_location_compare_addrs (const void *ap, const void *bp) | |
869 | { | |
870 | struct bp_location *a = *(void **) ap; | |
871 | struct bp_location *b = *(void **) bp; | |
872 | ||
873 | if (a->address == b->address) | |
874 | return 0; | |
875 | else | |
876 | return ((a->address > b->address) - (a->address < b->address)); | |
877 | } | |
878 | ||
879 | /* Helper function to skip all bp_locations with addresses | |
880 | less than ADDRESS. It returns the first bp_location that | |
881 | is greater than or equal to ADDRESS. If none is found, just | |
882 | return NULL. */ | |
883 | ||
884 | static struct bp_location ** | |
885 | get_first_locp_gte_addr (CORE_ADDR address) | |
886 | { | |
887 | struct bp_location dummy_loc; | |
888 | struct bp_location *dummy_locp = &dummy_loc; | |
889 | struct bp_location **locp_found = NULL; | |
890 | ||
891 | /* Initialize the dummy location's address field. */ | |
892 | memset (&dummy_loc, 0, sizeof (struct bp_location)); | |
893 | dummy_loc.address = address; | |
894 | ||
895 | /* Find a close match to the first location at ADDRESS. */ | |
896 | locp_found = bsearch (&dummy_locp, bp_location, bp_location_count, | |
897 | sizeof (struct bp_location **), | |
898 | bp_location_compare_addrs); | |
899 | ||
900 | /* Nothing was found, nothing left to do. */ | |
901 | if (locp_found == NULL) | |
902 | return NULL; | |
903 | ||
904 | /* We may have found a location that is at ADDRESS but is not the first in the | |
905 | location's list. Go backwards (if possible) and locate the first one. */ | |
906 | while ((locp_found - 1) >= bp_location | |
907 | && (*(locp_found - 1))->address == address) | |
908 | locp_found--; | |
909 | ||
910 | return locp_found; | |
911 | } | |
912 | ||
adc36818 PM |
913 | void |
914 | set_breakpoint_condition (struct breakpoint *b, char *exp, | |
915 | int from_tty) | |
916 | { | |
3a5c3e22 PA |
917 | xfree (b->cond_string); |
918 | b->cond_string = NULL; | |
adc36818 | 919 | |
3a5c3e22 | 920 | if (is_watchpoint (b)) |
adc36818 | 921 | { |
3a5c3e22 PA |
922 | struct watchpoint *w = (struct watchpoint *) b; |
923 | ||
924 | xfree (w->cond_exp); | |
925 | w->cond_exp = NULL; | |
926 | } | |
927 | else | |
928 | { | |
929 | struct bp_location *loc; | |
930 | ||
931 | for (loc = b->loc; loc; loc = loc->next) | |
932 | { | |
933 | xfree (loc->cond); | |
934 | loc->cond = NULL; | |
b775012e LM |
935 | |
936 | /* No need to free the condition agent expression | |
937 | bytecode (if we have one). We will handle this | |
938 | when we go through update_global_location_list. */ | |
3a5c3e22 | 939 | } |
adc36818 | 940 | } |
adc36818 PM |
941 | |
942 | if (*exp == 0) | |
943 | { | |
944 | if (from_tty) | |
945 | printf_filtered (_("Breakpoint %d now unconditional.\n"), b->number); | |
946 | } | |
947 | else | |
948 | { | |
bbc13ae3 | 949 | const char *arg = exp; |
cc59ec59 | 950 | |
adc36818 PM |
951 | /* I don't know if it matters whether this is the string the user |
952 | typed in or the decompiled expression. */ | |
953 | b->cond_string = xstrdup (arg); | |
954 | b->condition_not_parsed = 0; | |
955 | ||
956 | if (is_watchpoint (b)) | |
957 | { | |
3a5c3e22 PA |
958 | struct watchpoint *w = (struct watchpoint *) b; |
959 | ||
adc36818 PM |
960 | innermost_block = NULL; |
961 | arg = exp; | |
1bb9788d | 962 | w->cond_exp = parse_exp_1 (&arg, 0, 0, 0); |
adc36818 PM |
963 | if (*arg) |
964 | error (_("Junk at end of expression")); | |
3a5c3e22 | 965 | w->cond_exp_valid_block = innermost_block; |
adc36818 PM |
966 | } |
967 | else | |
968 | { | |
3a5c3e22 PA |
969 | struct bp_location *loc; |
970 | ||
adc36818 PM |
971 | for (loc = b->loc; loc; loc = loc->next) |
972 | { | |
973 | arg = exp; | |
974 | loc->cond = | |
1bb9788d TT |
975 | parse_exp_1 (&arg, loc->address, |
976 | block_for_pc (loc->address), 0); | |
adc36818 PM |
977 | if (*arg) |
978 | error (_("Junk at end of expression")); | |
979 | } | |
980 | } | |
981 | } | |
b775012e LM |
982 | mark_breakpoint_modified (b); |
983 | ||
8d3788bd | 984 | observer_notify_breakpoint_modified (b); |
adc36818 PM |
985 | } |
986 | ||
d55637df TT |
987 | /* Completion for the "condition" command. */ |
988 | ||
989 | static VEC (char_ptr) * | |
6f937416 PA |
990 | condition_completer (struct cmd_list_element *cmd, |
991 | const char *text, const char *word) | |
d55637df | 992 | { |
6f937416 | 993 | const char *space; |
d55637df | 994 | |
6f937416 PA |
995 | text = skip_spaces_const (text); |
996 | space = skip_to_space_const (text); | |
d55637df TT |
997 | if (*space == '\0') |
998 | { | |
999 | int len; | |
1000 | struct breakpoint *b; | |
1001 | VEC (char_ptr) *result = NULL; | |
1002 | ||
1003 | if (text[0] == '$') | |
1004 | { | |
1005 | /* We don't support completion of history indices. */ | |
1006 | if (isdigit (text[1])) | |
1007 | return NULL; | |
1008 | return complete_internalvar (&text[1]); | |
1009 | } | |
1010 | ||
1011 | /* We're completing the breakpoint number. */ | |
1012 | len = strlen (text); | |
1013 | ||
1014 | ALL_BREAKPOINTS (b) | |
58ce7251 SDJ |
1015 | { |
1016 | char number[50]; | |
1017 | ||
1018 | xsnprintf (number, sizeof (number), "%d", b->number); | |
1019 | ||
1020 | if (strncmp (number, text, len) == 0) | |
1021 | VEC_safe_push (char_ptr, result, xstrdup (number)); | |
1022 | } | |
d55637df TT |
1023 | |
1024 | return result; | |
1025 | } | |
1026 | ||
1027 | /* We're completing the expression part. */ | |
6f937416 | 1028 | text = skip_spaces_const (space); |
d55637df TT |
1029 | return expression_completer (cmd, text, word); |
1030 | } | |
1031 | ||
c906108c SS |
1032 | /* condition N EXP -- set break condition of breakpoint N to EXP. */ |
1033 | ||
1034 | static void | |
fba45db2 | 1035 | condition_command (char *arg, int from_tty) |
c906108c | 1036 | { |
52f0bd74 | 1037 | struct breakpoint *b; |
c906108c | 1038 | char *p; |
52f0bd74 | 1039 | int bnum; |
c906108c SS |
1040 | |
1041 | if (arg == 0) | |
e2e0b3e5 | 1042 | error_no_arg (_("breakpoint number")); |
c906108c SS |
1043 | |
1044 | p = arg; | |
1045 | bnum = get_number (&p); | |
5c44784c | 1046 | if (bnum == 0) |
8a3fe4f8 | 1047 | error (_("Bad breakpoint argument: '%s'"), arg); |
c906108c SS |
1048 | |
1049 | ALL_BREAKPOINTS (b) | |
1050 | if (b->number == bnum) | |
2f069f6f | 1051 | { |
6dddc817 DE |
1052 | /* Check if this breakpoint has a "stop" method implemented in an |
1053 | extension language. This method and conditions entered into GDB | |
1054 | from the CLI are mutually exclusive. */ | |
1055 | const struct extension_language_defn *extlang | |
1056 | = get_breakpoint_cond_ext_lang (b, EXT_LANG_NONE); | |
1057 | ||
1058 | if (extlang != NULL) | |
1059 | { | |
1060 | error (_("Only one stop condition allowed. There is currently" | |
1061 | " a %s stop condition defined for this breakpoint."), | |
1062 | ext_lang_capitalized_name (extlang)); | |
1063 | } | |
2566ad2d | 1064 | set_breakpoint_condition (b, p, from_tty); |
b775012e LM |
1065 | |
1066 | if (is_breakpoint (b)) | |
1067 | update_global_location_list (1); | |
1068 | ||
2f069f6f JB |
1069 | return; |
1070 | } | |
c906108c | 1071 | |
8a3fe4f8 | 1072 | error (_("No breakpoint number %d."), bnum); |
c906108c SS |
1073 | } |
1074 | ||
a7bdde9e VP |
1075 | /* Check that COMMAND do not contain commands that are suitable |
1076 | only for tracepoints and not suitable for ordinary breakpoints. | |
4a64f543 MS |
1077 | Throw if any such commands is found. */ |
1078 | ||
a7bdde9e VP |
1079 | static void |
1080 | check_no_tracepoint_commands (struct command_line *commands) | |
1081 | { | |
1082 | struct command_line *c; | |
cc59ec59 | 1083 | |
a7bdde9e VP |
1084 | for (c = commands; c; c = c->next) |
1085 | { | |
1086 | int i; | |
1087 | ||
1088 | if (c->control_type == while_stepping_control) | |
3e43a32a MS |
1089 | error (_("The 'while-stepping' command can " |
1090 | "only be used for tracepoints")); | |
a7bdde9e VP |
1091 | |
1092 | for (i = 0; i < c->body_count; ++i) | |
1093 | check_no_tracepoint_commands ((c->body_list)[i]); | |
1094 | ||
1095 | /* Not that command parsing removes leading whitespace and comment | |
4a64f543 | 1096 | lines and also empty lines. So, we only need to check for |
a7bdde9e VP |
1097 | command directly. */ |
1098 | if (strstr (c->line, "collect ") == c->line) | |
1099 | error (_("The 'collect' command can only be used for tracepoints")); | |
1100 | ||
51661e93 VP |
1101 | if (strstr (c->line, "teval ") == c->line) |
1102 | error (_("The 'teval' command can only be used for tracepoints")); | |
a7bdde9e VP |
1103 | } |
1104 | } | |
1105 | ||
d77f58be SS |
1106 | /* Encapsulate tests for different types of tracepoints. */ |
1107 | ||
d9b3f62e PA |
1108 | static int |
1109 | is_tracepoint_type (enum bptype type) | |
1110 | { | |
1111 | return (type == bp_tracepoint | |
1112 | || type == bp_fast_tracepoint | |
1113 | || type == bp_static_tracepoint); | |
1114 | } | |
1115 | ||
a7bdde9e | 1116 | int |
d77f58be | 1117 | is_tracepoint (const struct breakpoint *b) |
a7bdde9e | 1118 | { |
d9b3f62e | 1119 | return is_tracepoint_type (b->type); |
a7bdde9e | 1120 | } |
d9b3f62e | 1121 | |
e5dd4106 | 1122 | /* A helper function that validates that COMMANDS are valid for a |
95a42b64 TT |
1123 | breakpoint. This function will throw an exception if a problem is |
1124 | found. */ | |
48cb2d85 | 1125 | |
95a42b64 TT |
1126 | static void |
1127 | validate_commands_for_breakpoint (struct breakpoint *b, | |
1128 | struct command_line *commands) | |
48cb2d85 | 1129 | { |
d77f58be | 1130 | if (is_tracepoint (b)) |
a7bdde9e | 1131 | { |
c9a6ce02 | 1132 | struct tracepoint *t = (struct tracepoint *) b; |
a7bdde9e VP |
1133 | struct command_line *c; |
1134 | struct command_line *while_stepping = 0; | |
c9a6ce02 PA |
1135 | |
1136 | /* Reset the while-stepping step count. The previous commands | |
1137 | might have included a while-stepping action, while the new | |
1138 | ones might not. */ | |
1139 | t->step_count = 0; | |
1140 | ||
1141 | /* We need to verify that each top-level element of commands is | |
1142 | valid for tracepoints, that there's at most one | |
1143 | while-stepping element, and that the while-stepping's body | |
1144 | has valid tracing commands excluding nested while-stepping. | |
1145 | We also need to validate the tracepoint action line in the | |
1146 | context of the tracepoint --- validate_actionline actually | |
1147 | has side effects, like setting the tracepoint's | |
1148 | while-stepping STEP_COUNT, in addition to checking if the | |
1149 | collect/teval actions parse and make sense in the | |
1150 | tracepoint's context. */ | |
a7bdde9e VP |
1151 | for (c = commands; c; c = c->next) |
1152 | { | |
a7bdde9e VP |
1153 | if (c->control_type == while_stepping_control) |
1154 | { | |
1155 | if (b->type == bp_fast_tracepoint) | |
3e43a32a MS |
1156 | error (_("The 'while-stepping' command " |
1157 | "cannot be used for fast tracepoint")); | |
0fb4aa4b | 1158 | else if (b->type == bp_static_tracepoint) |
3e43a32a MS |
1159 | error (_("The 'while-stepping' command " |
1160 | "cannot be used for static tracepoint")); | |
a7bdde9e VP |
1161 | |
1162 | if (while_stepping) | |
3e43a32a MS |
1163 | error (_("The 'while-stepping' command " |
1164 | "can be used only once")); | |
a7bdde9e VP |
1165 | else |
1166 | while_stepping = c; | |
1167 | } | |
c9a6ce02 PA |
1168 | |
1169 | validate_actionline (c->line, b); | |
a7bdde9e VP |
1170 | } |
1171 | if (while_stepping) | |
1172 | { | |
1173 | struct command_line *c2; | |
1174 | ||
1175 | gdb_assert (while_stepping->body_count == 1); | |
1176 | c2 = while_stepping->body_list[0]; | |
1177 | for (; c2; c2 = c2->next) | |
1178 | { | |
a7bdde9e VP |
1179 | if (c2->control_type == while_stepping_control) |
1180 | error (_("The 'while-stepping' command cannot be nested")); | |
1181 | } | |
1182 | } | |
1183 | } | |
1184 | else | |
1185 | { | |
1186 | check_no_tracepoint_commands (commands); | |
1187 | } | |
95a42b64 TT |
1188 | } |
1189 | ||
0fb4aa4b PA |
1190 | /* Return a vector of all the static tracepoints set at ADDR. The |
1191 | caller is responsible for releasing the vector. */ | |
1192 | ||
1193 | VEC(breakpoint_p) * | |
1194 | static_tracepoints_here (CORE_ADDR addr) | |
1195 | { | |
1196 | struct breakpoint *b; | |
1197 | VEC(breakpoint_p) *found = 0; | |
1198 | struct bp_location *loc; | |
1199 | ||
1200 | ALL_BREAKPOINTS (b) | |
1201 | if (b->type == bp_static_tracepoint) | |
1202 | { | |
1203 | for (loc = b->loc; loc; loc = loc->next) | |
1204 | if (loc->address == addr) | |
1205 | VEC_safe_push(breakpoint_p, found, b); | |
1206 | } | |
1207 | ||
1208 | return found; | |
1209 | } | |
1210 | ||
95a42b64 | 1211 | /* Set the command list of B to COMMANDS. If breakpoint is tracepoint, |
4a64f543 | 1212 | validate that only allowed commands are included. */ |
95a42b64 TT |
1213 | |
1214 | void | |
4a64f543 MS |
1215 | breakpoint_set_commands (struct breakpoint *b, |
1216 | struct command_line *commands) | |
95a42b64 TT |
1217 | { |
1218 | validate_commands_for_breakpoint (b, commands); | |
a7bdde9e | 1219 | |
9add0f1b TT |
1220 | decref_counted_command_line (&b->commands); |
1221 | b->commands = alloc_counted_command_line (commands); | |
8d3788bd | 1222 | observer_notify_breakpoint_modified (b); |
48cb2d85 VP |
1223 | } |
1224 | ||
45a43567 TT |
1225 | /* Set the internal `silent' flag on the breakpoint. Note that this |
1226 | is not the same as the "silent" that may appear in the breakpoint's | |
1227 | commands. */ | |
1228 | ||
1229 | void | |
1230 | breakpoint_set_silent (struct breakpoint *b, int silent) | |
1231 | { | |
1232 | int old_silent = b->silent; | |
1233 | ||
1234 | b->silent = silent; | |
1235 | if (old_silent != silent) | |
8d3788bd | 1236 | observer_notify_breakpoint_modified (b); |
45a43567 TT |
1237 | } |
1238 | ||
1239 | /* Set the thread for this breakpoint. If THREAD is -1, make the | |
1240 | breakpoint work for any thread. */ | |
1241 | ||
1242 | void | |
1243 | breakpoint_set_thread (struct breakpoint *b, int thread) | |
1244 | { | |
1245 | int old_thread = b->thread; | |
1246 | ||
1247 | b->thread = thread; | |
1248 | if (old_thread != thread) | |
8d3788bd | 1249 | observer_notify_breakpoint_modified (b); |
45a43567 TT |
1250 | } |
1251 | ||
1252 | /* Set the task for this breakpoint. If TASK is 0, make the | |
1253 | breakpoint work for any task. */ | |
1254 | ||
1255 | void | |
1256 | breakpoint_set_task (struct breakpoint *b, int task) | |
1257 | { | |
1258 | int old_task = b->task; | |
1259 | ||
1260 | b->task = task; | |
1261 | if (old_task != task) | |
8d3788bd | 1262 | observer_notify_breakpoint_modified (b); |
45a43567 TT |
1263 | } |
1264 | ||
95a42b64 TT |
1265 | void |
1266 | check_tracepoint_command (char *line, void *closure) | |
a7bdde9e VP |
1267 | { |
1268 | struct breakpoint *b = closure; | |
cc59ec59 | 1269 | |
6f937416 | 1270 | validate_actionline (line, b); |
a7bdde9e VP |
1271 | } |
1272 | ||
95a42b64 TT |
1273 | /* A structure used to pass information through |
1274 | map_breakpoint_numbers. */ | |
1275 | ||
1276 | struct commands_info | |
1277 | { | |
1278 | /* True if the command was typed at a tty. */ | |
1279 | int from_tty; | |
86b17b60 PA |
1280 | |
1281 | /* The breakpoint range spec. */ | |
1282 | char *arg; | |
1283 | ||
95a42b64 TT |
1284 | /* Non-NULL if the body of the commands are being read from this |
1285 | already-parsed command. */ | |
1286 | struct command_line *control; | |
86b17b60 | 1287 | |
95a42b64 TT |
1288 | /* The command lines read from the user, or NULL if they have not |
1289 | yet been read. */ | |
1290 | struct counted_command_line *cmd; | |
1291 | }; | |
1292 | ||
1293 | /* A callback for map_breakpoint_numbers that sets the commands for | |
1294 | commands_command. */ | |
1295 | ||
c906108c | 1296 | static void |
95a42b64 | 1297 | do_map_commands_command (struct breakpoint *b, void *data) |
c906108c | 1298 | { |
95a42b64 | 1299 | struct commands_info *info = data; |
c906108c | 1300 | |
95a42b64 TT |
1301 | if (info->cmd == NULL) |
1302 | { | |
1303 | struct command_line *l; | |
5c44784c | 1304 | |
95a42b64 TT |
1305 | if (info->control != NULL) |
1306 | l = copy_command_lines (info->control->body_list[0]); | |
1307 | else | |
86b17b60 PA |
1308 | { |
1309 | struct cleanup *old_chain; | |
1310 | char *str; | |
c5aa993b | 1311 | |
3e43a32a MS |
1312 | str = xstrprintf (_("Type commands for breakpoint(s) " |
1313 | "%s, one per line."), | |
86b17b60 PA |
1314 | info->arg); |
1315 | ||
1316 | old_chain = make_cleanup (xfree, str); | |
1317 | ||
1318 | l = read_command_lines (str, | |
1319 | info->from_tty, 1, | |
d77f58be | 1320 | (is_tracepoint (b) |
86b17b60 PA |
1321 | ? check_tracepoint_command : 0), |
1322 | b); | |
1323 | ||
1324 | do_cleanups (old_chain); | |
1325 | } | |
a7bdde9e | 1326 | |
95a42b64 TT |
1327 | info->cmd = alloc_counted_command_line (l); |
1328 | } | |
1329 | ||
1330 | /* If a breakpoint was on the list more than once, we don't need to | |
1331 | do anything. */ | |
1332 | if (b->commands != info->cmd) | |
1333 | { | |
1334 | validate_commands_for_breakpoint (b, info->cmd->commands); | |
1335 | incref_counted_command_line (info->cmd); | |
1336 | decref_counted_command_line (&b->commands); | |
1337 | b->commands = info->cmd; | |
8d3788bd | 1338 | observer_notify_breakpoint_modified (b); |
c5aa993b | 1339 | } |
95a42b64 TT |
1340 | } |
1341 | ||
1342 | static void | |
4a64f543 MS |
1343 | commands_command_1 (char *arg, int from_tty, |
1344 | struct command_line *control) | |
95a42b64 TT |
1345 | { |
1346 | struct cleanup *cleanups; | |
1347 | struct commands_info info; | |
1348 | ||
1349 | info.from_tty = from_tty; | |
1350 | info.control = control; | |
1351 | info.cmd = NULL; | |
1352 | /* If we read command lines from the user, then `info' will hold an | |
1353 | extra reference to the commands that we must clean up. */ | |
1354 | cleanups = make_cleanup_decref_counted_command_line (&info.cmd); | |
1355 | ||
1356 | if (arg == NULL || !*arg) | |
1357 | { | |
86b17b60 | 1358 | if (breakpoint_count - prev_breakpoint_count > 1) |
4a64f543 MS |
1359 | arg = xstrprintf ("%d-%d", prev_breakpoint_count + 1, |
1360 | breakpoint_count); | |
95a42b64 TT |
1361 | else if (breakpoint_count > 0) |
1362 | arg = xstrprintf ("%d", breakpoint_count); | |
86b17b60 PA |
1363 | else |
1364 | { | |
1365 | /* So that we don't try to free the incoming non-NULL | |
1366 | argument in the cleanup below. Mapping breakpoint | |
1367 | numbers will fail in this case. */ | |
1368 | arg = NULL; | |
1369 | } | |
95a42b64 | 1370 | } |
9766ced4 SS |
1371 | else |
1372 | /* The command loop has some static state, so we need to preserve | |
1373 | our argument. */ | |
1374 | arg = xstrdup (arg); | |
86b17b60 PA |
1375 | |
1376 | if (arg != NULL) | |
1377 | make_cleanup (xfree, arg); | |
1378 | ||
1379 | info.arg = arg; | |
95a42b64 TT |
1380 | |
1381 | map_breakpoint_numbers (arg, do_map_commands_command, &info); | |
1382 | ||
1383 | if (info.cmd == NULL) | |
1384 | error (_("No breakpoints specified.")); | |
1385 | ||
1386 | do_cleanups (cleanups); | |
1387 | } | |
1388 | ||
1389 | static void | |
1390 | commands_command (char *arg, int from_tty) | |
1391 | { | |
1392 | commands_command_1 (arg, from_tty, NULL); | |
c906108c | 1393 | } |
40c03ae8 EZ |
1394 | |
1395 | /* Like commands_command, but instead of reading the commands from | |
1396 | input stream, takes them from an already parsed command structure. | |
1397 | ||
1398 | This is used by cli-script.c to DTRT with breakpoint commands | |
1399 | that are part of if and while bodies. */ | |
1400 | enum command_control_type | |
1401 | commands_from_control_command (char *arg, struct command_line *cmd) | |
1402 | { | |
95a42b64 TT |
1403 | commands_command_1 (arg, 0, cmd); |
1404 | return simple_control; | |
40c03ae8 | 1405 | } |
876fa593 JK |
1406 | |
1407 | /* Return non-zero if BL->TARGET_INFO contains valid information. */ | |
1408 | ||
1409 | static int | |
1410 | bp_location_has_shadow (struct bp_location *bl) | |
1411 | { | |
1412 | if (bl->loc_type != bp_loc_software_breakpoint) | |
1413 | return 0; | |
1414 | if (!bl->inserted) | |
1415 | return 0; | |
1416 | if (bl->target_info.shadow_len == 0) | |
e5dd4106 | 1417 | /* BL isn't valid, or doesn't shadow memory. */ |
876fa593 JK |
1418 | return 0; |
1419 | return 1; | |
1420 | } | |
1421 | ||
9d497a19 PA |
1422 | /* Update BUF, which is LEN bytes read from the target address |
1423 | MEMADDR, by replacing a memory breakpoint with its shadowed | |
1424 | contents. | |
1425 | ||
1426 | If READBUF is not NULL, this buffer must not overlap with the of | |
1427 | the breakpoint location's shadow_contents buffer. Otherwise, a | |
1428 | failed assertion internal error will be raised. */ | |
1429 | ||
1430 | static void | |
1431 | one_breakpoint_xfer_memory (gdb_byte *readbuf, gdb_byte *writebuf, | |
1432 | const gdb_byte *writebuf_org, | |
1433 | ULONGEST memaddr, LONGEST len, | |
1434 | struct bp_target_info *target_info, | |
1435 | struct gdbarch *gdbarch) | |
1436 | { | |
1437 | /* Now do full processing of the found relevant range of elements. */ | |
1438 | CORE_ADDR bp_addr = 0; | |
1439 | int bp_size = 0; | |
1440 | int bptoffset = 0; | |
1441 | ||
1442 | if (!breakpoint_address_match (target_info->placed_address_space, 0, | |
1443 | current_program_space->aspace, 0)) | |
1444 | { | |
1445 | /* The breakpoint is inserted in a different address space. */ | |
1446 | return; | |
1447 | } | |
1448 | ||
1449 | /* Addresses and length of the part of the breakpoint that | |
1450 | we need to copy. */ | |
1451 | bp_addr = target_info->placed_address; | |
1452 | bp_size = target_info->shadow_len; | |
1453 | ||
1454 | if (bp_addr + bp_size <= memaddr) | |
1455 | { | |
1456 | /* The breakpoint is entirely before the chunk of memory we are | |
1457 | reading. */ | |
1458 | return; | |
1459 | } | |
1460 | ||
1461 | if (bp_addr >= memaddr + len) | |
1462 | { | |
1463 | /* The breakpoint is entirely after the chunk of memory we are | |
1464 | reading. */ | |
1465 | return; | |
1466 | } | |
1467 | ||
1468 | /* Offset within shadow_contents. */ | |
1469 | if (bp_addr < memaddr) | |
1470 | { | |
1471 | /* Only copy the second part of the breakpoint. */ | |
1472 | bp_size -= memaddr - bp_addr; | |
1473 | bptoffset = memaddr - bp_addr; | |
1474 | bp_addr = memaddr; | |
1475 | } | |
1476 | ||
1477 | if (bp_addr + bp_size > memaddr + len) | |
1478 | { | |
1479 | /* Only copy the first part of the breakpoint. */ | |
1480 | bp_size -= (bp_addr + bp_size) - (memaddr + len); | |
1481 | } | |
1482 | ||
1483 | if (readbuf != NULL) | |
1484 | { | |
1485 | /* Verify that the readbuf buffer does not overlap with the | |
1486 | shadow_contents buffer. */ | |
1487 | gdb_assert (target_info->shadow_contents >= readbuf + len | |
1488 | || readbuf >= (target_info->shadow_contents | |
1489 | + target_info->shadow_len)); | |
1490 | ||
1491 | /* Update the read buffer with this inserted breakpoint's | |
1492 | shadow. */ | |
1493 | memcpy (readbuf + bp_addr - memaddr, | |
1494 | target_info->shadow_contents + bptoffset, bp_size); | |
1495 | } | |
1496 | else | |
1497 | { | |
1498 | const unsigned char *bp; | |
1499 | CORE_ADDR placed_address = target_info->placed_address; | |
1500 | int placed_size = target_info->placed_size; | |
1501 | ||
1502 | /* Update the shadow with what we want to write to memory. */ | |
1503 | memcpy (target_info->shadow_contents + bptoffset, | |
1504 | writebuf_org + bp_addr - memaddr, bp_size); | |
1505 | ||
1506 | /* Determine appropriate breakpoint contents and size for this | |
1507 | address. */ | |
1508 | bp = gdbarch_breakpoint_from_pc (gdbarch, &placed_address, &placed_size); | |
1509 | ||
1510 | /* Update the final write buffer with this inserted | |
1511 | breakpoint's INSN. */ | |
1512 | memcpy (writebuf + bp_addr - memaddr, bp + bptoffset, bp_size); | |
1513 | } | |
1514 | } | |
1515 | ||
8defab1a | 1516 | /* Update BUF, which is LEN bytes read from the target address MEMADDR, |
876fa593 JK |
1517 | by replacing any memory breakpoints with their shadowed contents. |
1518 | ||
35c63cd8 JB |
1519 | If READBUF is not NULL, this buffer must not overlap with any of |
1520 | the breakpoint location's shadow_contents buffers. Otherwise, | |
1521 | a failed assertion internal error will be raised. | |
1522 | ||
876fa593 | 1523 | The range of shadowed area by each bp_location is: |
35df4500 TJB |
1524 | bl->address - bp_location_placed_address_before_address_max |
1525 | up to bl->address + bp_location_shadow_len_after_address_max | |
876fa593 JK |
1526 | The range we were requested to resolve shadows for is: |
1527 | memaddr ... memaddr + len | |
1528 | Thus the safe cutoff boundaries for performance optimization are | |
35df4500 TJB |
1529 | memaddr + len <= (bl->address |
1530 | - bp_location_placed_address_before_address_max) | |
876fa593 | 1531 | and: |
35df4500 | 1532 | bl->address + bp_location_shadow_len_after_address_max <= memaddr */ |
c906108c | 1533 | |
8defab1a | 1534 | void |
f0ba3972 PA |
1535 | breakpoint_xfer_memory (gdb_byte *readbuf, gdb_byte *writebuf, |
1536 | const gdb_byte *writebuf_org, | |
1537 | ULONGEST memaddr, LONGEST len) | |
c906108c | 1538 | { |
4a64f543 MS |
1539 | /* Left boundary, right boundary and median element of our binary |
1540 | search. */ | |
876fa593 | 1541 | unsigned bc_l, bc_r, bc; |
9d497a19 | 1542 | size_t i; |
876fa593 | 1543 | |
4a64f543 MS |
1544 | /* Find BC_L which is a leftmost element which may affect BUF |
1545 | content. It is safe to report lower value but a failure to | |
1546 | report higher one. */ | |
876fa593 JK |
1547 | |
1548 | bc_l = 0; | |
1549 | bc_r = bp_location_count; | |
1550 | while (bc_l + 1 < bc_r) | |
1551 | { | |
35df4500 | 1552 | struct bp_location *bl; |
876fa593 JK |
1553 | |
1554 | bc = (bc_l + bc_r) / 2; | |
35df4500 | 1555 | bl = bp_location[bc]; |
876fa593 | 1556 | |
4a64f543 MS |
1557 | /* Check first BL->ADDRESS will not overflow due to the added |
1558 | constant. Then advance the left boundary only if we are sure | |
1559 | the BC element can in no way affect the BUF content (MEMADDR | |
1560 | to MEMADDR + LEN range). | |
876fa593 | 1561 | |
4a64f543 MS |
1562 | Use the BP_LOCATION_SHADOW_LEN_AFTER_ADDRESS_MAX safety |
1563 | offset so that we cannot miss a breakpoint with its shadow | |
1564 | range tail still reaching MEMADDR. */ | |
c5aa993b | 1565 | |
35df4500 TJB |
1566 | if ((bl->address + bp_location_shadow_len_after_address_max |
1567 | >= bl->address) | |
1568 | && (bl->address + bp_location_shadow_len_after_address_max | |
1569 | <= memaddr)) | |
876fa593 JK |
1570 | bc_l = bc; |
1571 | else | |
1572 | bc_r = bc; | |
1573 | } | |
1574 | ||
128070bb PA |
1575 | /* Due to the binary search above, we need to make sure we pick the |
1576 | first location that's at BC_L's address. E.g., if there are | |
1577 | multiple locations at the same address, BC_L may end up pointing | |
1578 | at a duplicate location, and miss the "master"/"inserted" | |
1579 | location. Say, given locations L1, L2 and L3 at addresses A and | |
1580 | B: | |
1581 | ||
1582 | L1@A, L2@A, L3@B, ... | |
1583 | ||
1584 | BC_L could end up pointing at location L2, while the "master" | |
1585 | location could be L1. Since the `loc->inserted' flag is only set | |
1586 | on "master" locations, we'd forget to restore the shadow of L1 | |
1587 | and L2. */ | |
1588 | while (bc_l > 0 | |
1589 | && bp_location[bc_l]->address == bp_location[bc_l - 1]->address) | |
1590 | bc_l--; | |
1591 | ||
876fa593 JK |
1592 | /* Now do full processing of the found relevant range of elements. */ |
1593 | ||
1594 | for (bc = bc_l; bc < bp_location_count; bc++) | |
c5aa993b | 1595 | { |
35df4500 | 1596 | struct bp_location *bl = bp_location[bc]; |
876fa593 JK |
1597 | CORE_ADDR bp_addr = 0; |
1598 | int bp_size = 0; | |
1599 | int bptoffset = 0; | |
1600 | ||
35df4500 TJB |
1601 | /* bp_location array has BL->OWNER always non-NULL. */ |
1602 | if (bl->owner->type == bp_none) | |
8a3fe4f8 | 1603 | warning (_("reading through apparently deleted breakpoint #%d?"), |
35df4500 | 1604 | bl->owner->number); |
ffce0d52 | 1605 | |
e5dd4106 | 1606 | /* Performance optimization: any further element can no longer affect BUF |
876fa593 JK |
1607 | content. */ |
1608 | ||
35df4500 TJB |
1609 | if (bl->address >= bp_location_placed_address_before_address_max |
1610 | && memaddr + len <= (bl->address | |
1611 | - bp_location_placed_address_before_address_max)) | |
876fa593 JK |
1612 | break; |
1613 | ||
35df4500 | 1614 | if (!bp_location_has_shadow (bl)) |
c5aa993b | 1615 | continue; |
6c95b8df | 1616 | |
9d497a19 PA |
1617 | one_breakpoint_xfer_memory (readbuf, writebuf, writebuf_org, |
1618 | memaddr, len, &bl->target_info, bl->gdbarch); | |
1619 | } | |
c5aa993b | 1620 | |
9d497a19 PA |
1621 | /* Now process single-step breakpoints. These are not found in the |
1622 | bp_location array. */ | |
1623 | for (i = 0; i < 2; i++) | |
1624 | { | |
1625 | struct bp_target_info *bp_tgt = single_step_breakpoints[i]; | |
c5aa993b | 1626 | |
9d497a19 PA |
1627 | if (bp_tgt != NULL) |
1628 | { | |
1629 | struct gdbarch *gdbarch = single_step_gdbarch[i]; | |
c5aa993b | 1630 | |
9d497a19 PA |
1631 | one_breakpoint_xfer_memory (readbuf, writebuf, writebuf_org, |
1632 | memaddr, len, bp_tgt, gdbarch); | |
1633 | } | |
1634 | } | |
c906108c | 1635 | } |
9d497a19 | 1636 | |
c906108c | 1637 | \f |
c5aa993b | 1638 | |
b775012e LM |
1639 | /* Return true if BPT is either a software breakpoint or a hardware |
1640 | breakpoint. */ | |
1641 | ||
1642 | int | |
1643 | is_breakpoint (const struct breakpoint *bpt) | |
1644 | { | |
1645 | return (bpt->type == bp_breakpoint | |
e7e0cddf SS |
1646 | || bpt->type == bp_hardware_breakpoint |
1647 | || bpt->type == bp_dprintf); | |
b775012e LM |
1648 | } |
1649 | ||
60e1c644 PA |
1650 | /* Return true if BPT is of any hardware watchpoint kind. */ |
1651 | ||
a5606eee | 1652 | static int |
d77f58be | 1653 | is_hardware_watchpoint (const struct breakpoint *bpt) |
a5606eee VP |
1654 | { |
1655 | return (bpt->type == bp_hardware_watchpoint | |
1656 | || bpt->type == bp_read_watchpoint | |
1657 | || bpt->type == bp_access_watchpoint); | |
1658 | } | |
7270d8f2 | 1659 | |
60e1c644 PA |
1660 | /* Return true if BPT is of any watchpoint kind, hardware or |
1661 | software. */ | |
1662 | ||
3a5c3e22 | 1663 | int |
d77f58be | 1664 | is_watchpoint (const struct breakpoint *bpt) |
60e1c644 PA |
1665 | { |
1666 | return (is_hardware_watchpoint (bpt) | |
1667 | || bpt->type == bp_watchpoint); | |
1668 | } | |
1669 | ||
3a5c3e22 PA |
1670 | /* Returns true if the current thread and its running state are safe |
1671 | to evaluate or update watchpoint B. Watchpoints on local | |
1672 | expressions need to be evaluated in the context of the thread that | |
1673 | was current when the watchpoint was created, and, that thread needs | |
1674 | to be stopped to be able to select the correct frame context. | |
1675 | Watchpoints on global expressions can be evaluated on any thread, | |
1676 | and in any state. It is presently left to the target allowing | |
1677 | memory accesses when threads are running. */ | |
f6bc2008 PA |
1678 | |
1679 | static int | |
3a5c3e22 | 1680 | watchpoint_in_thread_scope (struct watchpoint *b) |
f6bc2008 | 1681 | { |
d0d8b0c6 JK |
1682 | return (b->base.pspace == current_program_space |
1683 | && (ptid_equal (b->watchpoint_thread, null_ptid) | |
1684 | || (ptid_equal (inferior_ptid, b->watchpoint_thread) | |
1685 | && !is_executing (inferior_ptid)))); | |
f6bc2008 PA |
1686 | } |
1687 | ||
d0fb5eae JK |
1688 | /* Set watchpoint B to disp_del_at_next_stop, even including its possible |
1689 | associated bp_watchpoint_scope breakpoint. */ | |
1690 | ||
1691 | static void | |
3a5c3e22 | 1692 | watchpoint_del_at_next_stop (struct watchpoint *w) |
d0fb5eae | 1693 | { |
3a5c3e22 | 1694 | struct breakpoint *b = &w->base; |
d0fb5eae JK |
1695 | |
1696 | if (b->related_breakpoint != b) | |
1697 | { | |
1698 | gdb_assert (b->related_breakpoint->type == bp_watchpoint_scope); | |
1699 | gdb_assert (b->related_breakpoint->related_breakpoint == b); | |
1700 | b->related_breakpoint->disposition = disp_del_at_next_stop; | |
1701 | b->related_breakpoint->related_breakpoint = b->related_breakpoint; | |
1702 | b->related_breakpoint = b; | |
1703 | } | |
1704 | b->disposition = disp_del_at_next_stop; | |
1705 | } | |
1706 | ||
567e1b4e JB |
1707 | /* Assuming that B is a watchpoint: |
1708 | - Reparse watchpoint expression, if REPARSE is non-zero | |
a5606eee | 1709 | - Evaluate expression and store the result in B->val |
567e1b4e JB |
1710 | - Evaluate the condition if there is one, and store the result |
1711 | in b->loc->cond. | |
a5606eee VP |
1712 | - Update the list of values that must be watched in B->loc. |
1713 | ||
4a64f543 MS |
1714 | If the watchpoint disposition is disp_del_at_next_stop, then do |
1715 | nothing. If this is local watchpoint that is out of scope, delete | |
1716 | it. | |
1717 | ||
1718 | Even with `set breakpoint always-inserted on' the watchpoints are | |
1719 | removed + inserted on each stop here. Normal breakpoints must | |
1720 | never be removed because they might be missed by a running thread | |
1721 | when debugging in non-stop mode. On the other hand, hardware | |
1722 | watchpoints (is_hardware_watchpoint; processed here) are specific | |
1723 | to each LWP since they are stored in each LWP's hardware debug | |
1724 | registers. Therefore, such LWP must be stopped first in order to | |
1725 | be able to modify its hardware watchpoints. | |
1726 | ||
1727 | Hardware watchpoints must be reset exactly once after being | |
1728 | presented to the user. It cannot be done sooner, because it would | |
1729 | reset the data used to present the watchpoint hit to the user. And | |
1730 | it must not be done later because it could display the same single | |
1731 | watchpoint hit during multiple GDB stops. Note that the latter is | |
1732 | relevant only to the hardware watchpoint types bp_read_watchpoint | |
1733 | and bp_access_watchpoint. False hit by bp_hardware_watchpoint is | |
1734 | not user-visible - its hit is suppressed if the memory content has | |
1735 | not changed. | |
1736 | ||
1737 | The following constraints influence the location where we can reset | |
1738 | hardware watchpoints: | |
1739 | ||
1740 | * target_stopped_by_watchpoint and target_stopped_data_address are | |
1741 | called several times when GDB stops. | |
1742 | ||
1743 | [linux] | |
1744 | * Multiple hardware watchpoints can be hit at the same time, | |
1745 | causing GDB to stop. GDB only presents one hardware watchpoint | |
1746 | hit at a time as the reason for stopping, and all the other hits | |
1747 | are presented later, one after the other, each time the user | |
1748 | requests the execution to be resumed. Execution is not resumed | |
1749 | for the threads still having pending hit event stored in | |
1750 | LWP_INFO->STATUS. While the watchpoint is already removed from | |
1751 | the inferior on the first stop the thread hit event is kept being | |
1752 | reported from its cached value by linux_nat_stopped_data_address | |
1753 | until the real thread resume happens after the watchpoint gets | |
1754 | presented and thus its LWP_INFO->STATUS gets reset. | |
1755 | ||
1756 | Therefore the hardware watchpoint hit can get safely reset on the | |
1757 | watchpoint removal from inferior. */ | |
a79d3c27 | 1758 | |
b40ce68a | 1759 | static void |
3a5c3e22 | 1760 | update_watchpoint (struct watchpoint *b, int reparse) |
7270d8f2 | 1761 | { |
a5606eee | 1762 | int within_current_scope; |
a5606eee | 1763 | struct frame_id saved_frame_id; |
66076460 | 1764 | int frame_saved; |
a5606eee | 1765 | |
f6bc2008 PA |
1766 | /* If this is a local watchpoint, we only want to check if the |
1767 | watchpoint frame is in scope if the current thread is the thread | |
1768 | that was used to create the watchpoint. */ | |
1769 | if (!watchpoint_in_thread_scope (b)) | |
1770 | return; | |
1771 | ||
3a5c3e22 | 1772 | if (b->base.disposition == disp_del_at_next_stop) |
a5606eee VP |
1773 | return; |
1774 | ||
66076460 | 1775 | frame_saved = 0; |
a5606eee VP |
1776 | |
1777 | /* Determine if the watchpoint is within scope. */ | |
1778 | if (b->exp_valid_block == NULL) | |
1779 | within_current_scope = 1; | |
1780 | else | |
1781 | { | |
b5db5dfc UW |
1782 | struct frame_info *fi = get_current_frame (); |
1783 | struct gdbarch *frame_arch = get_frame_arch (fi); | |
1784 | CORE_ADDR frame_pc = get_frame_pc (fi); | |
1785 | ||
1786 | /* If we're in a function epilogue, unwinding may not work | |
1787 | properly, so do not attempt to recreate locations at this | |
1788 | point. See similar comments in watchpoint_check. */ | |
1789 | if (gdbarch_in_function_epilogue_p (frame_arch, frame_pc)) | |
1790 | return; | |
66076460 DJ |
1791 | |
1792 | /* Save the current frame's ID so we can restore it after | |
1793 | evaluating the watchpoint expression on its own frame. */ | |
1794 | /* FIXME drow/2003-09-09: It would be nice if evaluate_expression | |
1795 | took a frame parameter, so that we didn't have to change the | |
1796 | selected frame. */ | |
1797 | frame_saved = 1; | |
1798 | saved_frame_id = get_frame_id (get_selected_frame (NULL)); | |
1799 | ||
a5606eee VP |
1800 | fi = frame_find_by_id (b->watchpoint_frame); |
1801 | within_current_scope = (fi != NULL); | |
1802 | if (within_current_scope) | |
1803 | select_frame (fi); | |
1804 | } | |
1805 | ||
b5db5dfc UW |
1806 | /* We don't free locations. They are stored in the bp_location array |
1807 | and update_global_location_list will eventually delete them and | |
1808 | remove breakpoints if needed. */ | |
3a5c3e22 | 1809 | b->base.loc = NULL; |
b5db5dfc | 1810 | |
a5606eee VP |
1811 | if (within_current_scope && reparse) |
1812 | { | |
bbc13ae3 | 1813 | const char *s; |
d63d0675 | 1814 | |
a5606eee VP |
1815 | if (b->exp) |
1816 | { | |
1817 | xfree (b->exp); | |
1818 | b->exp = NULL; | |
1819 | } | |
d63d0675 | 1820 | s = b->exp_string_reparse ? b->exp_string_reparse : b->exp_string; |
1bb9788d | 1821 | b->exp = parse_exp_1 (&s, 0, b->exp_valid_block, 0); |
a5606eee VP |
1822 | /* If the meaning of expression itself changed, the old value is |
1823 | no longer relevant. We don't want to report a watchpoint hit | |
1824 | to the user when the old value and the new value may actually | |
1825 | be completely different objects. */ | |
1826 | value_free (b->val); | |
fa4727a6 DJ |
1827 | b->val = NULL; |
1828 | b->val_valid = 0; | |
60e1c644 PA |
1829 | |
1830 | /* Note that unlike with breakpoints, the watchpoint's condition | |
1831 | expression is stored in the breakpoint object, not in the | |
1832 | locations (re)created below. */ | |
3a5c3e22 | 1833 | if (b->base.cond_string != NULL) |
60e1c644 PA |
1834 | { |
1835 | if (b->cond_exp != NULL) | |
1836 | { | |
1837 | xfree (b->cond_exp); | |
1838 | b->cond_exp = NULL; | |
1839 | } | |
1840 | ||
3a5c3e22 | 1841 | s = b->base.cond_string; |
1bb9788d | 1842 | b->cond_exp = parse_exp_1 (&s, 0, b->cond_exp_valid_block, 0); |
60e1c644 | 1843 | } |
a5606eee | 1844 | } |
a5606eee VP |
1845 | |
1846 | /* If we failed to parse the expression, for example because | |
1847 | it refers to a global variable in a not-yet-loaded shared library, | |
1848 | don't try to insert watchpoint. We don't automatically delete | |
1849 | such watchpoint, though, since failure to parse expression | |
1850 | is different from out-of-scope watchpoint. */ | |
e8369a73 | 1851 | if (!target_has_execution) |
2d134ed3 PA |
1852 | { |
1853 | /* Without execution, memory can't change. No use to try and | |
1854 | set watchpoint locations. The watchpoint will be reset when | |
1855 | the target gains execution, through breakpoint_re_set. */ | |
e8369a73 AB |
1856 | if (!can_use_hw_watchpoints) |
1857 | { | |
1858 | if (b->base.ops->works_in_software_mode (&b->base)) | |
1859 | b->base.type = bp_watchpoint; | |
1860 | else | |
638aa5a1 AB |
1861 | error (_("Can't set read/access watchpoint when " |
1862 | "hardware watchpoints are disabled.")); | |
e8369a73 | 1863 | } |
2d134ed3 PA |
1864 | } |
1865 | else if (within_current_scope && b->exp) | |
a5606eee | 1866 | { |
0cf6dd15 | 1867 | int pc = 0; |
fa4727a6 | 1868 | struct value *val_chain, *v, *result, *next; |
2d134ed3 | 1869 | struct program_space *frame_pspace; |
a5606eee | 1870 | |
3a1115a0 | 1871 | fetch_subexp_value (b->exp, &pc, &v, &result, &val_chain, 0); |
a5606eee | 1872 | |
a5606eee VP |
1873 | /* Avoid setting b->val if it's already set. The meaning of |
1874 | b->val is 'the last value' user saw, and we should update | |
1875 | it only if we reported that last value to user. As it | |
9c06b0b4 TJB |
1876 | happens, the code that reports it updates b->val directly. |
1877 | We don't keep track of the memory value for masked | |
1878 | watchpoints. */ | |
3a5c3e22 | 1879 | if (!b->val_valid && !is_masked_watchpoint (&b->base)) |
fa4727a6 DJ |
1880 | { |
1881 | b->val = v; | |
1882 | b->val_valid = 1; | |
1883 | } | |
a5606eee | 1884 | |
2d134ed3 PA |
1885 | frame_pspace = get_frame_program_space (get_selected_frame (NULL)); |
1886 | ||
a5606eee | 1887 | /* Look at each value on the value chain. */ |
9fa40276 | 1888 | for (v = val_chain; v; v = value_next (v)) |
a5606eee VP |
1889 | { |
1890 | /* If it's a memory location, and GDB actually needed | |
1891 | its contents to evaluate the expression, then we | |
fa4727a6 DJ |
1892 | must watch it. If the first value returned is |
1893 | still lazy, that means an error occurred reading it; | |
1894 | watch it anyway in case it becomes readable. */ | |
a5606eee | 1895 | if (VALUE_LVAL (v) == lval_memory |
fa4727a6 | 1896 | && (v == val_chain || ! value_lazy (v))) |
a5606eee VP |
1897 | { |
1898 | struct type *vtype = check_typedef (value_type (v)); | |
7270d8f2 | 1899 | |
a5606eee VP |
1900 | /* We only watch structs and arrays if user asked |
1901 | for it explicitly, never if they just happen to | |
1902 | appear in the middle of some value chain. */ | |
fa4727a6 | 1903 | if (v == result |
a5606eee VP |
1904 | || (TYPE_CODE (vtype) != TYPE_CODE_STRUCT |
1905 | && TYPE_CODE (vtype) != TYPE_CODE_ARRAY)) | |
1906 | { | |
1907 | CORE_ADDR addr; | |
744a8059 | 1908 | int type; |
a5606eee VP |
1909 | struct bp_location *loc, **tmp; |
1910 | ||
42ae5230 | 1911 | addr = value_address (v); |
a5606eee | 1912 | type = hw_write; |
3a5c3e22 | 1913 | if (b->base.type == bp_read_watchpoint) |
a5606eee | 1914 | type = hw_read; |
3a5c3e22 | 1915 | else if (b->base.type == bp_access_watchpoint) |
a5606eee | 1916 | type = hw_access; |
3a5c3e22 PA |
1917 | |
1918 | loc = allocate_bp_location (&b->base); | |
1919 | for (tmp = &(b->base.loc); *tmp != NULL; tmp = &((*tmp)->next)) | |
a5606eee VP |
1920 | ; |
1921 | *tmp = loc; | |
a6d9a66e | 1922 | loc->gdbarch = get_type_arch (value_type (v)); |
6c95b8df PA |
1923 | |
1924 | loc->pspace = frame_pspace; | |
a5606eee | 1925 | loc->address = addr; |
744a8059 | 1926 | loc->length = TYPE_LENGTH (value_type (v)); |
a5606eee VP |
1927 | loc->watchpoint_type = type; |
1928 | } | |
1929 | } | |
9fa40276 TJB |
1930 | } |
1931 | ||
1932 | /* Change the type of breakpoint between hardware assisted or | |
1933 | an ordinary watchpoint depending on the hardware support | |
1934 | and free hardware slots. REPARSE is set when the inferior | |
1935 | is started. */ | |
a9634178 | 1936 | if (reparse) |
9fa40276 | 1937 | { |
e09342b5 | 1938 | int reg_cnt; |
9fa40276 TJB |
1939 | enum bp_loc_type loc_type; |
1940 | struct bp_location *bl; | |
a5606eee | 1941 | |
a9634178 | 1942 | reg_cnt = can_use_hardware_watchpoint (val_chain); |
e09342b5 TJB |
1943 | |
1944 | if (reg_cnt) | |
9fa40276 TJB |
1945 | { |
1946 | int i, target_resources_ok, other_type_used; | |
a1398e0c | 1947 | enum bptype type; |
9fa40276 | 1948 | |
a9634178 TJB |
1949 | /* Use an exact watchpoint when there's only one memory region to be |
1950 | watched, and only one debug register is needed to watch it. */ | |
1951 | b->exact = target_exact_watchpoints && reg_cnt == 1; | |
1952 | ||
9fa40276 | 1953 | /* We need to determine how many resources are already |
e09342b5 TJB |
1954 | used for all other hardware watchpoints plus this one |
1955 | to see if we still have enough resources to also fit | |
a1398e0c PA |
1956 | this watchpoint in as well. */ |
1957 | ||
1958 | /* If this is a software watchpoint, we try to turn it | |
1959 | to a hardware one -- count resources as if B was of | |
1960 | hardware watchpoint type. */ | |
1961 | type = b->base.type; | |
1962 | if (type == bp_watchpoint) | |
1963 | type = bp_hardware_watchpoint; | |
1964 | ||
1965 | /* This watchpoint may or may not have been placed on | |
1966 | the list yet at this point (it won't be in the list | |
1967 | if we're trying to create it for the first time, | |
1968 | through watch_command), so always account for it | |
1969 | manually. */ | |
1970 | ||
1971 | /* Count resources used by all watchpoints except B. */ | |
1972 | i = hw_watchpoint_used_count_others (&b->base, type, &other_type_used); | |
1973 | ||
1974 | /* Add in the resources needed for B. */ | |
1975 | i += hw_watchpoint_use_count (&b->base); | |
1976 | ||
1977 | target_resources_ok | |
1978 | = target_can_use_hardware_watchpoint (type, i, other_type_used); | |
e09342b5 | 1979 | if (target_resources_ok <= 0) |
a9634178 | 1980 | { |
3a5c3e22 | 1981 | int sw_mode = b->base.ops->works_in_software_mode (&b->base); |
9c06b0b4 TJB |
1982 | |
1983 | if (target_resources_ok == 0 && !sw_mode) | |
a9634178 TJB |
1984 | error (_("Target does not support this type of " |
1985 | "hardware watchpoint.")); | |
9c06b0b4 TJB |
1986 | else if (target_resources_ok < 0 && !sw_mode) |
1987 | error (_("There are not enough available hardware " | |
1988 | "resources for this watchpoint.")); | |
a1398e0c PA |
1989 | |
1990 | /* Downgrade to software watchpoint. */ | |
1991 | b->base.type = bp_watchpoint; | |
1992 | } | |
1993 | else | |
1994 | { | |
1995 | /* If this was a software watchpoint, we've just | |
1996 | found we have enough resources to turn it to a | |
1997 | hardware watchpoint. Otherwise, this is a | |
1998 | nop. */ | |
1999 | b->base.type = type; | |
a9634178 | 2000 | } |
9fa40276 | 2001 | } |
3a5c3e22 | 2002 | else if (!b->base.ops->works_in_software_mode (&b->base)) |
638aa5a1 AB |
2003 | { |
2004 | if (!can_use_hw_watchpoints) | |
2005 | error (_("Can't set read/access watchpoint when " | |
2006 | "hardware watchpoints are disabled.")); | |
2007 | else | |
2008 | error (_("Expression cannot be implemented with " | |
2009 | "read/access watchpoint.")); | |
2010 | } | |
9fa40276 | 2011 | else |
3a5c3e22 | 2012 | b->base.type = bp_watchpoint; |
9fa40276 | 2013 | |
3a5c3e22 | 2014 | loc_type = (b->base.type == bp_watchpoint? bp_loc_other |
9fa40276 | 2015 | : bp_loc_hardware_watchpoint); |
3a5c3e22 | 2016 | for (bl = b->base.loc; bl; bl = bl->next) |
9fa40276 TJB |
2017 | bl->loc_type = loc_type; |
2018 | } | |
2019 | ||
2020 | for (v = val_chain; v; v = next) | |
2021 | { | |
a5606eee VP |
2022 | next = value_next (v); |
2023 | if (v != b->val) | |
2024 | value_free (v); | |
2025 | } | |
2026 | ||
c7437ca6 PA |
2027 | /* If a software watchpoint is not watching any memory, then the |
2028 | above left it without any location set up. But, | |
2029 | bpstat_stop_status requires a location to be able to report | |
2030 | stops, so make sure there's at least a dummy one. */ | |
3a5c3e22 | 2031 | if (b->base.type == bp_watchpoint && b->base.loc == NULL) |
c7437ca6 | 2032 | { |
3a5c3e22 PA |
2033 | struct breakpoint *base = &b->base; |
2034 | base->loc = allocate_bp_location (base); | |
2035 | base->loc->pspace = frame_pspace; | |
2036 | base->loc->address = -1; | |
2037 | base->loc->length = -1; | |
2038 | base->loc->watchpoint_type = -1; | |
c7437ca6 | 2039 | } |
a5606eee VP |
2040 | } |
2041 | else if (!within_current_scope) | |
7270d8f2 | 2042 | { |
ac74f770 MS |
2043 | printf_filtered (_("\ |
2044 | Watchpoint %d deleted because the program has left the block\n\ | |
2045 | in which its expression is valid.\n"), | |
3a5c3e22 | 2046 | b->base.number); |
d0fb5eae | 2047 | watchpoint_del_at_next_stop (b); |
7270d8f2 | 2048 | } |
a5606eee VP |
2049 | |
2050 | /* Restore the selected frame. */ | |
66076460 DJ |
2051 | if (frame_saved) |
2052 | select_frame (frame_find_by_id (saved_frame_id)); | |
7270d8f2 OF |
2053 | } |
2054 | ||
a5606eee | 2055 | |
74960c60 | 2056 | /* Returns 1 iff breakpoint location should be |
1e4d1764 YQ |
2057 | inserted in the inferior. We don't differentiate the type of BL's owner |
2058 | (breakpoint vs. tracepoint), although insert_location in tracepoint's | |
2059 | breakpoint_ops is not defined, because in insert_bp_location, | |
2060 | tracepoint's insert_location will not be called. */ | |
74960c60 | 2061 | static int |
35df4500 | 2062 | should_be_inserted (struct bp_location *bl) |
74960c60 | 2063 | { |
35df4500 | 2064 | if (bl->owner == NULL || !breakpoint_enabled (bl->owner)) |
74960c60 VP |
2065 | return 0; |
2066 | ||
35df4500 | 2067 | if (bl->owner->disposition == disp_del_at_next_stop) |
74960c60 VP |
2068 | return 0; |
2069 | ||
35df4500 | 2070 | if (!bl->enabled || bl->shlib_disabled || bl->duplicate) |
74960c60 VP |
2071 | return 0; |
2072 | ||
f8eba3c6 TT |
2073 | if (user_breakpoint_p (bl->owner) && bl->pspace->executing_startup) |
2074 | return 0; | |
2075 | ||
56710373 PA |
2076 | /* This is set for example, when we're attached to the parent of a |
2077 | vfork, and have detached from the child. The child is running | |
2078 | free, and we expect it to do an exec or exit, at which point the | |
2079 | OS makes the parent schedulable again (and the target reports | |
2080 | that the vfork is done). Until the child is done with the shared | |
2081 | memory region, do not insert breakpoints in the parent, otherwise | |
2082 | the child could still trip on the parent's breakpoints. Since | |
2083 | the parent is blocked anyway, it won't miss any breakpoint. */ | |
35df4500 | 2084 | if (bl->pspace->breakpoints_not_allowed) |
56710373 PA |
2085 | return 0; |
2086 | ||
31e77af2 PA |
2087 | /* Don't insert a breakpoint if we're trying to step past its |
2088 | location. */ | |
2089 | if ((bl->loc_type == bp_loc_software_breakpoint | |
2090 | || bl->loc_type == bp_loc_hardware_breakpoint) | |
2091 | && stepping_past_instruction_at (bl->pspace->aspace, | |
2092 | bl->address)) | |
2093 | return 0; | |
2094 | ||
74960c60 VP |
2095 | return 1; |
2096 | } | |
2097 | ||
934709f0 PW |
2098 | /* Same as should_be_inserted but does the check assuming |
2099 | that the location is not duplicated. */ | |
2100 | ||
2101 | static int | |
2102 | unduplicated_should_be_inserted (struct bp_location *bl) | |
2103 | { | |
2104 | int result; | |
2105 | const int save_duplicate = bl->duplicate; | |
2106 | ||
2107 | bl->duplicate = 0; | |
2108 | result = should_be_inserted (bl); | |
2109 | bl->duplicate = save_duplicate; | |
2110 | return result; | |
2111 | } | |
2112 | ||
b775012e LM |
2113 | /* Parses a conditional described by an expression COND into an |
2114 | agent expression bytecode suitable for evaluation | |
2115 | by the bytecode interpreter. Return NULL if there was | |
2116 | any error during parsing. */ | |
2117 | ||
2118 | static struct agent_expr * | |
2119 | parse_cond_to_aexpr (CORE_ADDR scope, struct expression *cond) | |
2120 | { | |
2121 | struct agent_expr *aexpr = NULL; | |
b775012e LM |
2122 | volatile struct gdb_exception ex; |
2123 | ||
2124 | if (!cond) | |
2125 | return NULL; | |
2126 | ||
2127 | /* We don't want to stop processing, so catch any errors | |
2128 | that may show up. */ | |
2129 | TRY_CATCH (ex, RETURN_MASK_ERROR) | |
2130 | { | |
2131 | aexpr = gen_eval_for_expr (scope, cond); | |
2132 | } | |
2133 | ||
2134 | if (ex.reason < 0) | |
2135 | { | |
2136 | /* If we got here, it means the condition could not be parsed to a valid | |
2137 | bytecode expression and thus can't be evaluated on the target's side. | |
2138 | It's no use iterating through the conditions. */ | |
2139 | return NULL; | |
2140 | } | |
2141 | ||
2142 | /* We have a valid agent expression. */ | |
2143 | return aexpr; | |
2144 | } | |
2145 | ||
2146 | /* Based on location BL, create a list of breakpoint conditions to be | |
2147 | passed on to the target. If we have duplicated locations with different | |
2148 | conditions, we will add such conditions to the list. The idea is that the | |
2149 | target will evaluate the list of conditions and will only notify GDB when | |
2150 | one of them is true. */ | |
2151 | ||
2152 | static void | |
2153 | build_target_condition_list (struct bp_location *bl) | |
2154 | { | |
2155 | struct bp_location **locp = NULL, **loc2p; | |
2156 | int null_condition_or_parse_error = 0; | |
2157 | int modified = bl->needs_update; | |
2158 | struct bp_location *loc; | |
2159 | ||
8b4f3082 PA |
2160 | /* Release conditions left over from a previous insert. */ |
2161 | VEC_free (agent_expr_p, bl->target_info.conditions); | |
2162 | ||
b775012e LM |
2163 | /* This is only meaningful if the target is |
2164 | evaluating conditions and if the user has | |
2165 | opted for condition evaluation on the target's | |
2166 | side. */ | |
2167 | if (gdb_evaluates_breakpoint_condition_p () | |
2168 | || !target_supports_evaluation_of_breakpoint_conditions ()) | |
2169 | return; | |
2170 | ||
2171 | /* Do a first pass to check for locations with no assigned | |
2172 | conditions or conditions that fail to parse to a valid agent expression | |
2173 | bytecode. If any of these happen, then it's no use to send conditions | |
2174 | to the target since this location will always trigger and generate a | |
2175 | response back to GDB. */ | |
2176 | ALL_BP_LOCATIONS_AT_ADDR (loc2p, locp, bl->address) | |
2177 | { | |
2178 | loc = (*loc2p); | |
2179 | if (is_breakpoint (loc->owner) && loc->pspace->num == bl->pspace->num) | |
2180 | { | |
2181 | if (modified) | |
2182 | { | |
2183 | struct agent_expr *aexpr; | |
2184 | ||
2185 | /* Re-parse the conditions since something changed. In that | |
2186 | case we already freed the condition bytecodes (see | |
2187 | force_breakpoint_reinsertion). We just | |
2188 | need to parse the condition to bytecodes again. */ | |
2189 | aexpr = parse_cond_to_aexpr (bl->address, loc->cond); | |
2190 | loc->cond_bytecode = aexpr; | |
2191 | ||
2192 | /* Check if we managed to parse the conditional expression | |
2193 | correctly. If not, we will not send this condition | |
2194 | to the target. */ | |
2195 | if (aexpr) | |
2196 | continue; | |
2197 | } | |
2198 | ||
2199 | /* If we have a NULL bytecode expression, it means something | |
2200 | went wrong or we have a null condition expression. */ | |
2201 | if (!loc->cond_bytecode) | |
2202 | { | |
2203 | null_condition_or_parse_error = 1; | |
2204 | break; | |
2205 | } | |
2206 | } | |
2207 | } | |
2208 | ||
2209 | /* If any of these happened, it means we will have to evaluate the conditions | |
2210 | for the location's address on gdb's side. It is no use keeping bytecodes | |
2211 | for all the other duplicate locations, thus we free all of them here. | |
2212 | ||
2213 | This is so we have a finer control over which locations' conditions are | |
2214 | being evaluated by GDB or the remote stub. */ | |
2215 | if (null_condition_or_parse_error) | |
2216 | { | |
2217 | ALL_BP_LOCATIONS_AT_ADDR (loc2p, locp, bl->address) | |
2218 | { | |
2219 | loc = (*loc2p); | |
2220 | if (is_breakpoint (loc->owner) && loc->pspace->num == bl->pspace->num) | |
2221 | { | |
2222 | /* Only go as far as the first NULL bytecode is | |
2223 | located. */ | |
2224 | if (!loc->cond_bytecode) | |
2225 | return; | |
2226 | ||
2227 | free_agent_expr (loc->cond_bytecode); | |
2228 | loc->cond_bytecode = NULL; | |
2229 | } | |
2230 | } | |
2231 | } | |
2232 | ||
2233 | /* No NULL conditions or failed bytecode generation. Build a condition list | |
2234 | for this location's address. */ | |
2235 | ALL_BP_LOCATIONS_AT_ADDR (loc2p, locp, bl->address) | |
2236 | { | |
2237 | loc = (*loc2p); | |
2238 | if (loc->cond | |
2239 | && is_breakpoint (loc->owner) | |
2240 | && loc->pspace->num == bl->pspace->num | |
2241 | && loc->owner->enable_state == bp_enabled | |
2242 | && loc->enabled) | |
2243 | /* Add the condition to the vector. This will be used later to send the | |
2244 | conditions to the target. */ | |
2245 | VEC_safe_push (agent_expr_p, bl->target_info.conditions, | |
2246 | loc->cond_bytecode); | |
2247 | } | |
2248 | ||
2249 | return; | |
2250 | } | |
2251 | ||
d3ce09f5 SS |
2252 | /* Parses a command described by string CMD into an agent expression |
2253 | bytecode suitable for evaluation by the bytecode interpreter. | |
2254 | Return NULL if there was any error during parsing. */ | |
2255 | ||
2256 | static struct agent_expr * | |
2257 | parse_cmd_to_aexpr (CORE_ADDR scope, char *cmd) | |
2258 | { | |
2259 | struct cleanup *old_cleanups = 0; | |
2260 | struct expression *expr, **argvec; | |
2261 | struct agent_expr *aexpr = NULL; | |
d3ce09f5 | 2262 | volatile struct gdb_exception ex; |
bbc13ae3 KS |
2263 | const char *cmdrest; |
2264 | const char *format_start, *format_end; | |
d3ce09f5 SS |
2265 | struct format_piece *fpieces; |
2266 | int nargs; | |
2267 | struct gdbarch *gdbarch = get_current_arch (); | |
2268 | ||
2269 | if (!cmd) | |
2270 | return NULL; | |
2271 | ||
2272 | cmdrest = cmd; | |
2273 | ||
2274 | if (*cmdrest == ',') | |
2275 | ++cmdrest; | |
bbc13ae3 | 2276 | cmdrest = skip_spaces_const (cmdrest); |
d3ce09f5 SS |
2277 | |
2278 | if (*cmdrest++ != '"') | |
2279 | error (_("No format string following the location")); | |
2280 | ||
2281 | format_start = cmdrest; | |
2282 | ||
2283 | fpieces = parse_format_string (&cmdrest); | |
2284 | ||
2285 | old_cleanups = make_cleanup (free_format_pieces_cleanup, &fpieces); | |
2286 | ||
2287 | format_end = cmdrest; | |
2288 | ||
2289 | if (*cmdrest++ != '"') | |
2290 | error (_("Bad format string, non-terminated '\"'.")); | |
2291 | ||
bbc13ae3 | 2292 | cmdrest = skip_spaces_const (cmdrest); |
d3ce09f5 SS |
2293 | |
2294 | if (!(*cmdrest == ',' || *cmdrest == '\0')) | |
2295 | error (_("Invalid argument syntax")); | |
2296 | ||
2297 | if (*cmdrest == ',') | |
2298 | cmdrest++; | |
bbc13ae3 | 2299 | cmdrest = skip_spaces_const (cmdrest); |
d3ce09f5 SS |
2300 | |
2301 | /* For each argument, make an expression. */ | |
2302 | ||
2303 | argvec = (struct expression **) alloca (strlen (cmd) | |
2304 | * sizeof (struct expression *)); | |
2305 | ||
2306 | nargs = 0; | |
2307 | while (*cmdrest != '\0') | |
2308 | { | |
bbc13ae3 | 2309 | const char *cmd1; |
d3ce09f5 SS |
2310 | |
2311 | cmd1 = cmdrest; | |
2312 | expr = parse_exp_1 (&cmd1, scope, block_for_pc (scope), 1); | |
2313 | argvec[nargs++] = expr; | |
2314 | cmdrest = cmd1; | |
2315 | if (*cmdrest == ',') | |
2316 | ++cmdrest; | |
2317 | } | |
2318 | ||
2319 | /* We don't want to stop processing, so catch any errors | |
2320 | that may show up. */ | |
2321 | TRY_CATCH (ex, RETURN_MASK_ERROR) | |
2322 | { | |
2323 | aexpr = gen_printf (scope, gdbarch, 0, 0, | |
2324 | format_start, format_end - format_start, | |
2325 | fpieces, nargs, argvec); | |
2326 | } | |
2327 | ||
752eb8b4 TT |
2328 | do_cleanups (old_cleanups); |
2329 | ||
d3ce09f5 SS |
2330 | if (ex.reason < 0) |
2331 | { | |
2332 | /* If we got here, it means the command could not be parsed to a valid | |
2333 | bytecode expression and thus can't be evaluated on the target's side. | |
2334 | It's no use iterating through the other commands. */ | |
2335 | return NULL; | |
2336 | } | |
2337 | ||
d3ce09f5 SS |
2338 | /* We have a valid agent expression, return it. */ |
2339 | return aexpr; | |
2340 | } | |
2341 | ||
2342 | /* Based on location BL, create a list of breakpoint commands to be | |
2343 | passed on to the target. If we have duplicated locations with | |
2344 | different commands, we will add any such to the list. */ | |
2345 | ||
2346 | static void | |
2347 | build_target_command_list (struct bp_location *bl) | |
2348 | { | |
2349 | struct bp_location **locp = NULL, **loc2p; | |
2350 | int null_command_or_parse_error = 0; | |
2351 | int modified = bl->needs_update; | |
2352 | struct bp_location *loc; | |
2353 | ||
8b4f3082 PA |
2354 | /* Release commands left over from a previous insert. */ |
2355 | VEC_free (agent_expr_p, bl->target_info.tcommands); | |
2356 | ||
41fac0cf | 2357 | if (!target_can_run_breakpoint_commands ()) |
d3ce09f5 SS |
2358 | return; |
2359 | ||
41fac0cf PA |
2360 | /* For now, limit to agent-style dprintf breakpoints. */ |
2361 | if (dprintf_style != dprintf_style_agent) | |
d3ce09f5 SS |
2362 | return; |
2363 | ||
41fac0cf PA |
2364 | /* For now, if we have any duplicate location that isn't a dprintf, |
2365 | don't install the target-side commands, as that would make the | |
2366 | breakpoint not be reported to the core, and we'd lose | |
2367 | control. */ | |
2368 | ALL_BP_LOCATIONS_AT_ADDR (loc2p, locp, bl->address) | |
2369 | { | |
2370 | loc = (*loc2p); | |
2371 | if (is_breakpoint (loc->owner) | |
2372 | && loc->pspace->num == bl->pspace->num | |
2373 | && loc->owner->type != bp_dprintf) | |
2374 | return; | |
2375 | } | |
2376 | ||
d3ce09f5 SS |
2377 | /* Do a first pass to check for locations with no assigned |
2378 | conditions or conditions that fail to parse to a valid agent expression | |
2379 | bytecode. If any of these happen, then it's no use to send conditions | |
2380 | to the target since this location will always trigger and generate a | |
2381 | response back to GDB. */ | |
2382 | ALL_BP_LOCATIONS_AT_ADDR (loc2p, locp, bl->address) | |
2383 | { | |
2384 | loc = (*loc2p); | |
2385 | if (is_breakpoint (loc->owner) && loc->pspace->num == bl->pspace->num) | |
2386 | { | |
2387 | if (modified) | |
2388 | { | |
2389 | struct agent_expr *aexpr; | |
2390 | ||
2391 | /* Re-parse the commands since something changed. In that | |
2392 | case we already freed the command bytecodes (see | |
2393 | force_breakpoint_reinsertion). We just | |
2394 | need to parse the command to bytecodes again. */ | |
2395 | aexpr = parse_cmd_to_aexpr (bl->address, | |
2396 | loc->owner->extra_string); | |
2397 | loc->cmd_bytecode = aexpr; | |
2398 | ||
2399 | if (!aexpr) | |
2400 | continue; | |
2401 | } | |
2402 | ||
2403 | /* If we have a NULL bytecode expression, it means something | |
2404 | went wrong or we have a null command expression. */ | |
2405 | if (!loc->cmd_bytecode) | |
2406 | { | |
2407 | null_command_or_parse_error = 1; | |
2408 | break; | |
2409 | } | |
2410 | } | |
2411 | } | |
2412 | ||
2413 | /* If anything failed, then we're not doing target-side commands, | |
2414 | and so clean up. */ | |
2415 | if (null_command_or_parse_error) | |
2416 | { | |
2417 | ALL_BP_LOCATIONS_AT_ADDR (loc2p, locp, bl->address) | |
2418 | { | |
2419 | loc = (*loc2p); | |
2420 | if (is_breakpoint (loc->owner) | |
2421 | && loc->pspace->num == bl->pspace->num) | |
2422 | { | |
2423 | /* Only go as far as the first NULL bytecode is | |
2424 | located. */ | |
40fb6c5e | 2425 | if (loc->cmd_bytecode == NULL) |
d3ce09f5 SS |
2426 | return; |
2427 | ||
40fb6c5e HZ |
2428 | free_agent_expr (loc->cmd_bytecode); |
2429 | loc->cmd_bytecode = NULL; | |
d3ce09f5 SS |
2430 | } |
2431 | } | |
2432 | } | |
2433 | ||
2434 | /* No NULL commands or failed bytecode generation. Build a command list | |
2435 | for this location's address. */ | |
2436 | ALL_BP_LOCATIONS_AT_ADDR (loc2p, locp, bl->address) | |
2437 | { | |
2438 | loc = (*loc2p); | |
2439 | if (loc->owner->extra_string | |
2440 | && is_breakpoint (loc->owner) | |
2441 | && loc->pspace->num == bl->pspace->num | |
2442 | && loc->owner->enable_state == bp_enabled | |
2443 | && loc->enabled) | |
2444 | /* Add the command to the vector. This will be used later | |
2445 | to send the commands to the target. */ | |
2446 | VEC_safe_push (agent_expr_p, bl->target_info.tcommands, | |
2447 | loc->cmd_bytecode); | |
2448 | } | |
2449 | ||
2450 | bl->target_info.persist = 0; | |
2451 | /* Maybe flag this location as persistent. */ | |
2452 | if (bl->owner->type == bp_dprintf && disconnected_dprintf) | |
2453 | bl->target_info.persist = 1; | |
2454 | } | |
2455 | ||
35df4500 TJB |
2456 | /* Insert a low-level "breakpoint" of some type. BL is the breakpoint |
2457 | location. Any error messages are printed to TMP_ERROR_STREAM; and | |
3fbb6ffa | 2458 | DISABLED_BREAKS, and HW_BREAKPOINT_ERROR are used to report problems. |
c30eee59 TJB |
2459 | Returns 0 for success, 1 if the bp_location type is not supported or |
2460 | -1 for failure. | |
879bfdc2 | 2461 | |
4a64f543 MS |
2462 | NOTE drow/2003-09-09: This routine could be broken down to an |
2463 | object-style method for each breakpoint or catchpoint type. */ | |
26bb91f3 | 2464 | static int |
35df4500 | 2465 | insert_bp_location (struct bp_location *bl, |
26bb91f3 | 2466 | struct ui_file *tmp_error_stream, |
3fbb6ffa | 2467 | int *disabled_breaks, |
dd61ec5c MW |
2468 | int *hw_breakpoint_error, |
2469 | int *hw_bp_error_explained_already) | |
879bfdc2 | 2470 | { |
0000e5cc PA |
2471 | enum errors bp_err = GDB_NO_ERROR; |
2472 | const char *bp_err_message = NULL; | |
c90a6fb7 | 2473 | volatile struct gdb_exception e; |
879bfdc2 | 2474 | |
b775012e | 2475 | if (!should_be_inserted (bl) || (bl->inserted && !bl->needs_update)) |
879bfdc2 DJ |
2476 | return 0; |
2477 | ||
35c63cd8 JB |
2478 | /* Note we don't initialize bl->target_info, as that wipes out |
2479 | the breakpoint location's shadow_contents if the breakpoint | |
2480 | is still inserted at that location. This in turn breaks | |
2481 | target_read_memory which depends on these buffers when | |
2482 | a memory read is requested at the breakpoint location: | |
2483 | Once the target_info has been wiped, we fail to see that | |
2484 | we have a breakpoint inserted at that address and thus | |
2485 | read the breakpoint instead of returning the data saved in | |
2486 | the breakpoint location's shadow contents. */ | |
35df4500 TJB |
2487 | bl->target_info.placed_address = bl->address; |
2488 | bl->target_info.placed_address_space = bl->pspace->aspace; | |
f1310107 | 2489 | bl->target_info.length = bl->length; |
8181d85f | 2490 | |
b775012e LM |
2491 | /* When working with target-side conditions, we must pass all the conditions |
2492 | for the same breakpoint address down to the target since GDB will not | |
2493 | insert those locations. With a list of breakpoint conditions, the target | |
2494 | can decide when to stop and notify GDB. */ | |
2495 | ||
2496 | if (is_breakpoint (bl->owner)) | |
2497 | { | |
2498 | build_target_condition_list (bl); | |
d3ce09f5 SS |
2499 | build_target_command_list (bl); |
2500 | /* Reset the modification marker. */ | |
b775012e LM |
2501 | bl->needs_update = 0; |
2502 | } | |
2503 | ||
35df4500 TJB |
2504 | if (bl->loc_type == bp_loc_software_breakpoint |
2505 | || bl->loc_type == bp_loc_hardware_breakpoint) | |
879bfdc2 | 2506 | { |
35df4500 | 2507 | if (bl->owner->type != bp_hardware_breakpoint) |
765dc015 VP |
2508 | { |
2509 | /* If the explicitly specified breakpoint type | |
2510 | is not hardware breakpoint, check the memory map to see | |
2511 | if the breakpoint address is in read only memory or not. | |
4a64f543 | 2512 | |
765dc015 VP |
2513 | Two important cases are: |
2514 | - location type is not hardware breakpoint, memory | |
2515 | is readonly. We change the type of the location to | |
2516 | hardware breakpoint. | |
4a64f543 MS |
2517 | - location type is hardware breakpoint, memory is |
2518 | read-write. This means we've previously made the | |
2519 | location hardware one, but then the memory map changed, | |
2520 | so we undo. | |
765dc015 | 2521 | |
4a64f543 MS |
2522 | When breakpoints are removed, remove_breakpoints will use |
2523 | location types we've just set here, the only possible | |
2524 | problem is that memory map has changed during running | |
2525 | program, but it's not going to work anyway with current | |
2526 | gdb. */ | |
765dc015 | 2527 | struct mem_region *mr |
35df4500 | 2528 | = lookup_mem_region (bl->target_info.placed_address); |
765dc015 VP |
2529 | |
2530 | if (mr) | |
2531 | { | |
2532 | if (automatic_hardware_breakpoints) | |
2533 | { | |
765dc015 VP |
2534 | enum bp_loc_type new_type; |
2535 | ||
2536 | if (mr->attrib.mode != MEM_RW) | |
2537 | new_type = bp_loc_hardware_breakpoint; | |
2538 | else | |
2539 | new_type = bp_loc_software_breakpoint; | |
2540 | ||
35df4500 | 2541 | if (new_type != bl->loc_type) |
765dc015 VP |
2542 | { |
2543 | static int said = 0; | |
cc59ec59 | 2544 | |
35df4500 | 2545 | bl->loc_type = new_type; |
765dc015 VP |
2546 | if (!said) |
2547 | { | |
3e43a32a MS |
2548 | fprintf_filtered (gdb_stdout, |
2549 | _("Note: automatically using " | |
2550 | "hardware breakpoints for " | |
2551 | "read-only addresses.\n")); | |
765dc015 VP |
2552 | said = 1; |
2553 | } | |
2554 | } | |
2555 | } | |
35df4500 | 2556 | else if (bl->loc_type == bp_loc_software_breakpoint |
765dc015 | 2557 | && mr->attrib.mode != MEM_RW) |
3e43a32a MS |
2558 | warning (_("cannot set software breakpoint " |
2559 | "at readonly address %s"), | |
35df4500 | 2560 | paddress (bl->gdbarch, bl->address)); |
765dc015 VP |
2561 | } |
2562 | } | |
2563 | ||
879bfdc2 DJ |
2564 | /* First check to see if we have to handle an overlay. */ |
2565 | if (overlay_debugging == ovly_off | |
35df4500 TJB |
2566 | || bl->section == NULL |
2567 | || !(section_is_overlay (bl->section))) | |
879bfdc2 DJ |
2568 | { |
2569 | /* No overlay handling: just set the breakpoint. */ | |
dd61ec5c MW |
2570 | TRY_CATCH (e, RETURN_MASK_ALL) |
2571 | { | |
0000e5cc PA |
2572 | int val; |
2573 | ||
dd61ec5c | 2574 | val = bl->owner->ops->insert_location (bl); |
0000e5cc PA |
2575 | if (val) |
2576 | bp_err = GENERIC_ERROR; | |
dd61ec5c MW |
2577 | } |
2578 | if (e.reason < 0) | |
2579 | { | |
0000e5cc PA |
2580 | bp_err = e.error; |
2581 | bp_err_message = e.message; | |
dd61ec5c | 2582 | } |
879bfdc2 DJ |
2583 | } |
2584 | else | |
2585 | { | |
4a64f543 | 2586 | /* This breakpoint is in an overlay section. |
879bfdc2 DJ |
2587 | Shall we set a breakpoint at the LMA? */ |
2588 | if (!overlay_events_enabled) | |
2589 | { | |
2590 | /* Yes -- overlay event support is not active, | |
2591 | so we must try to set a breakpoint at the LMA. | |
2592 | This will not work for a hardware breakpoint. */ | |
35df4500 | 2593 | if (bl->loc_type == bp_loc_hardware_breakpoint) |
8a3fe4f8 | 2594 | warning (_("hardware breakpoint %d not supported in overlay!"), |
35df4500 | 2595 | bl->owner->number); |
879bfdc2 DJ |
2596 | else |
2597 | { | |
35df4500 TJB |
2598 | CORE_ADDR addr = overlay_unmapped_address (bl->address, |
2599 | bl->section); | |
879bfdc2 | 2600 | /* Set a software (trap) breakpoint at the LMA. */ |
35df4500 TJB |
2601 | bl->overlay_target_info = bl->target_info; |
2602 | bl->overlay_target_info.placed_address = addr; | |
0000e5cc PA |
2603 | |
2604 | /* No overlay handling: just set the breakpoint. */ | |
2605 | TRY_CATCH (e, RETURN_MASK_ALL) | |
2606 | { | |
2607 | int val; | |
2608 | ||
2609 | val = target_insert_breakpoint (bl->gdbarch, | |
2610 | &bl->overlay_target_info); | |
2611 | if (val) | |
2612 | bp_err = GENERIC_ERROR; | |
2613 | } | |
2614 | if (e.reason < 0) | |
2615 | { | |
2616 | bp_err = e.error; | |
2617 | bp_err_message = e.message; | |
2618 | } | |
2619 | ||
2620 | if (bp_err != GDB_NO_ERROR) | |
99361f52 | 2621 | fprintf_unfiltered (tmp_error_stream, |
3e43a32a MS |
2622 | "Overlay breakpoint %d " |
2623 | "failed: in ROM?\n", | |
35df4500 | 2624 | bl->owner->number); |
879bfdc2 DJ |
2625 | } |
2626 | } | |
2627 | /* Shall we set a breakpoint at the VMA? */ | |
35df4500 | 2628 | if (section_is_mapped (bl->section)) |
879bfdc2 DJ |
2629 | { |
2630 | /* Yes. This overlay section is mapped into memory. */ | |
dd61ec5c MW |
2631 | TRY_CATCH (e, RETURN_MASK_ALL) |
2632 | { | |
0000e5cc PA |
2633 | int val; |
2634 | ||
dd61ec5c | 2635 | val = bl->owner->ops->insert_location (bl); |
0000e5cc PA |
2636 | if (val) |
2637 | bp_err = GENERIC_ERROR; | |
dd61ec5c MW |
2638 | } |
2639 | if (e.reason < 0) | |
2640 | { | |
0000e5cc PA |
2641 | bp_err = e.error; |
2642 | bp_err_message = e.message; | |
dd61ec5c | 2643 | } |
879bfdc2 DJ |
2644 | } |
2645 | else | |
2646 | { | |
2647 | /* No. This breakpoint will not be inserted. | |
2648 | No error, but do not mark the bp as 'inserted'. */ | |
2649 | return 0; | |
2650 | } | |
2651 | } | |
2652 | ||
0000e5cc | 2653 | if (bp_err != GDB_NO_ERROR) |
879bfdc2 DJ |
2654 | { |
2655 | /* Can't set the breakpoint. */ | |
0000e5cc PA |
2656 | |
2657 | /* In some cases, we might not be able to insert a | |
2658 | breakpoint in a shared library that has already been | |
2659 | removed, but we have not yet processed the shlib unload | |
2660 | event. Unfortunately, some targets that implement | |
076855f9 PA |
2661 | breakpoint insertion themselves can't tell why the |
2662 | breakpoint insertion failed (e.g., the remote target | |
2663 | doesn't define error codes), so we must treat generic | |
2664 | errors as memory errors. */ | |
0000e5cc | 2665 | if ((bp_err == GENERIC_ERROR || bp_err == MEMORY_ERROR) |
076855f9 | 2666 | && bl->loc_type == bp_loc_software_breakpoint |
08351840 PA |
2667 | && (solib_name_from_address (bl->pspace, bl->address) |
2668 | || userloaded_objfile_contains_address_p (bl->pspace, | |
2669 | bl->address))) | |
879bfdc2 | 2670 | { |
4a64f543 | 2671 | /* See also: disable_breakpoints_in_shlibs. */ |
35df4500 | 2672 | bl->shlib_disabled = 1; |
8d3788bd | 2673 | observer_notify_breakpoint_modified (bl->owner); |
3fbb6ffa TJB |
2674 | if (!*disabled_breaks) |
2675 | { | |
2676 | fprintf_unfiltered (tmp_error_stream, | |
2677 | "Cannot insert breakpoint %d.\n", | |
2678 | bl->owner->number); | |
2679 | fprintf_unfiltered (tmp_error_stream, | |
2680 | "Temporarily disabling shared " | |
2681 | "library breakpoints:\n"); | |
2682 | } | |
2683 | *disabled_breaks = 1; | |
879bfdc2 | 2684 | fprintf_unfiltered (tmp_error_stream, |
35df4500 | 2685 | "breakpoint #%d\n", bl->owner->number); |
0000e5cc | 2686 | return 0; |
879bfdc2 DJ |
2687 | } |
2688 | else | |
879bfdc2 | 2689 | { |
35df4500 | 2690 | if (bl->loc_type == bp_loc_hardware_breakpoint) |
879bfdc2 | 2691 | { |
0000e5cc PA |
2692 | *hw_breakpoint_error = 1; |
2693 | *hw_bp_error_explained_already = bp_err_message != NULL; | |
dd61ec5c MW |
2694 | fprintf_unfiltered (tmp_error_stream, |
2695 | "Cannot insert hardware breakpoint %d%s", | |
0000e5cc PA |
2696 | bl->owner->number, bp_err_message ? ":" : ".\n"); |
2697 | if (bp_err_message != NULL) | |
2698 | fprintf_unfiltered (tmp_error_stream, "%s.\n", bp_err_message); | |
879bfdc2 DJ |
2699 | } |
2700 | else | |
2701 | { | |
0000e5cc PA |
2702 | if (bp_err_message == NULL) |
2703 | { | |
2704 | char *message | |
2705 | = memory_error_message (TARGET_XFER_E_IO, | |
2706 | bl->gdbarch, bl->address); | |
2707 | struct cleanup *old_chain = make_cleanup (xfree, message); | |
2708 | ||
2709 | fprintf_unfiltered (tmp_error_stream, | |
2710 | "Cannot insert breakpoint %d.\n" | |
2711 | "%s\n", | |
2712 | bl->owner->number, message); | |
2713 | do_cleanups (old_chain); | |
2714 | } | |
2715 | else | |
2716 | { | |
2717 | fprintf_unfiltered (tmp_error_stream, | |
2718 | "Cannot insert breakpoint %d: %s\n", | |
2719 | bl->owner->number, | |
2720 | bp_err_message); | |
2721 | } | |
879bfdc2 | 2722 | } |
0000e5cc | 2723 | return 1; |
879bfdc2 DJ |
2724 | |
2725 | } | |
2726 | } | |
2727 | else | |
35df4500 | 2728 | bl->inserted = 1; |
879bfdc2 | 2729 | |
0000e5cc | 2730 | return 0; |
879bfdc2 DJ |
2731 | } |
2732 | ||
35df4500 | 2733 | else if (bl->loc_type == bp_loc_hardware_watchpoint |
879bfdc2 | 2734 | /* NOTE drow/2003-09-08: This state only exists for removing |
4a64f543 | 2735 | watchpoints. It's not clear that it's necessary... */ |
35df4500 | 2736 | && bl->owner->disposition != disp_del_at_next_stop) |
879bfdc2 | 2737 | { |
0000e5cc PA |
2738 | int val; |
2739 | ||
77b06cd7 TJB |
2740 | gdb_assert (bl->owner->ops != NULL |
2741 | && bl->owner->ops->insert_location != NULL); | |
2742 | ||
2743 | val = bl->owner->ops->insert_location (bl); | |
85d721b8 PA |
2744 | |
2745 | /* If trying to set a read-watchpoint, and it turns out it's not | |
2746 | supported, try emulating one with an access watchpoint. */ | |
35df4500 | 2747 | if (val == 1 && bl->watchpoint_type == hw_read) |
85d721b8 PA |
2748 | { |
2749 | struct bp_location *loc, **loc_temp; | |
2750 | ||
2751 | /* But don't try to insert it, if there's already another | |
2752 | hw_access location that would be considered a duplicate | |
2753 | of this one. */ | |
2754 | ALL_BP_LOCATIONS (loc, loc_temp) | |
35df4500 | 2755 | if (loc != bl |
85d721b8 | 2756 | && loc->watchpoint_type == hw_access |
35df4500 | 2757 | && watchpoint_locations_match (bl, loc)) |
85d721b8 | 2758 | { |
35df4500 TJB |
2759 | bl->duplicate = 1; |
2760 | bl->inserted = 1; | |
2761 | bl->target_info = loc->target_info; | |
2762 | bl->watchpoint_type = hw_access; | |
85d721b8 PA |
2763 | val = 0; |
2764 | break; | |
2765 | } | |
2766 | ||
2767 | if (val == 1) | |
2768 | { | |
77b06cd7 TJB |
2769 | bl->watchpoint_type = hw_access; |
2770 | val = bl->owner->ops->insert_location (bl); | |
2771 | ||
2772 | if (val) | |
2773 | /* Back to the original value. */ | |
2774 | bl->watchpoint_type = hw_read; | |
85d721b8 PA |
2775 | } |
2776 | } | |
2777 | ||
35df4500 | 2778 | bl->inserted = (val == 0); |
879bfdc2 DJ |
2779 | } |
2780 | ||
35df4500 | 2781 | else if (bl->owner->type == bp_catchpoint) |
879bfdc2 | 2782 | { |
0000e5cc PA |
2783 | int val; |
2784 | ||
77b06cd7 TJB |
2785 | gdb_assert (bl->owner->ops != NULL |
2786 | && bl->owner->ops->insert_location != NULL); | |
2787 | ||
2788 | val = bl->owner->ops->insert_location (bl); | |
2789 | if (val) | |
2790 | { | |
2791 | bl->owner->enable_state = bp_disabled; | |
2792 | ||
2793 | if (val == 1) | |
2794 | warning (_("\ | |
2795 | Error inserting catchpoint %d: Your system does not support this type\n\ | |
2796 | of catchpoint."), bl->owner->number); | |
2797 | else | |
2798 | warning (_("Error inserting catchpoint %d."), bl->owner->number); | |
2799 | } | |
2800 | ||
2801 | bl->inserted = (val == 0); | |
1640b821 DJ |
2802 | |
2803 | /* We've already printed an error message if there was a problem | |
2804 | inserting this catchpoint, and we've disabled the catchpoint, | |
2805 | so just return success. */ | |
2806 | return 0; | |
879bfdc2 DJ |
2807 | } |
2808 | ||
2809 | return 0; | |
2810 | } | |
2811 | ||
6c95b8df PA |
2812 | /* This function is called when program space PSPACE is about to be |
2813 | deleted. It takes care of updating breakpoints to not reference | |
2814 | PSPACE anymore. */ | |
2815 | ||
2816 | void | |
2817 | breakpoint_program_space_exit (struct program_space *pspace) | |
2818 | { | |
2819 | struct breakpoint *b, *b_temp; | |
876fa593 | 2820 | struct bp_location *loc, **loc_temp; |
6c95b8df PA |
2821 | |
2822 | /* Remove any breakpoint that was set through this program space. */ | |
2823 | ALL_BREAKPOINTS_SAFE (b, b_temp) | |
2824 | { | |
2825 | if (b->pspace == pspace) | |
2826 | delete_breakpoint (b); | |
2827 | } | |
2828 | ||
2829 | /* Breakpoints set through other program spaces could have locations | |
2830 | bound to PSPACE as well. Remove those. */ | |
876fa593 | 2831 | ALL_BP_LOCATIONS (loc, loc_temp) |
6c95b8df PA |
2832 | { |
2833 | struct bp_location *tmp; | |
2834 | ||
2835 | if (loc->pspace == pspace) | |
2836 | { | |
2bdf28a0 | 2837 | /* ALL_BP_LOCATIONS bp_location has LOC->OWNER always non-NULL. */ |
6c95b8df PA |
2838 | if (loc->owner->loc == loc) |
2839 | loc->owner->loc = loc->next; | |
2840 | else | |
2841 | for (tmp = loc->owner->loc; tmp->next != NULL; tmp = tmp->next) | |
2842 | if (tmp->next == loc) | |
2843 | { | |
2844 | tmp->next = loc->next; | |
2845 | break; | |
2846 | } | |
2847 | } | |
2848 | } | |
2849 | ||
2850 | /* Now update the global location list to permanently delete the | |
2851 | removed locations above. */ | |
2852 | update_global_location_list (0); | |
2853 | } | |
2854 | ||
74960c60 VP |
2855 | /* Make sure all breakpoints are inserted in inferior. |
2856 | Throws exception on any error. | |
2857 | A breakpoint that is already inserted won't be inserted | |
2858 | again, so calling this function twice is safe. */ | |
2859 | void | |
2860 | insert_breakpoints (void) | |
2861 | { | |
2862 | struct breakpoint *bpt; | |
2863 | ||
2864 | ALL_BREAKPOINTS (bpt) | |
2865 | if (is_hardware_watchpoint (bpt)) | |
3a5c3e22 PA |
2866 | { |
2867 | struct watchpoint *w = (struct watchpoint *) bpt; | |
2868 | ||
2869 | update_watchpoint (w, 0 /* don't reparse. */); | |
2870 | } | |
74960c60 | 2871 | |
b60e7edf | 2872 | update_global_location_list (1); |
74960c60 | 2873 | |
c35b1492 PA |
2874 | /* update_global_location_list does not insert breakpoints when |
2875 | always_inserted_mode is not enabled. Explicitly insert them | |
2876 | now. */ | |
2877 | if (!breakpoints_always_inserted_mode ()) | |
74960c60 VP |
2878 | insert_breakpoint_locations (); |
2879 | } | |
2880 | ||
20388dd6 YQ |
2881 | /* Invoke CALLBACK for each of bp_location. */ |
2882 | ||
2883 | void | |
2884 | iterate_over_bp_locations (walk_bp_location_callback callback) | |
2885 | { | |
2886 | struct bp_location *loc, **loc_tmp; | |
2887 | ||
2888 | ALL_BP_LOCATIONS (loc, loc_tmp) | |
2889 | { | |
2890 | callback (loc, NULL); | |
2891 | } | |
2892 | } | |
2893 | ||
b775012e LM |
2894 | /* This is used when we need to synch breakpoint conditions between GDB and the |
2895 | target. It is the case with deleting and disabling of breakpoints when using | |
2896 | always-inserted mode. */ | |
2897 | ||
2898 | static void | |
2899 | update_inserted_breakpoint_locations (void) | |
2900 | { | |
2901 | struct bp_location *bl, **blp_tmp; | |
2902 | int error_flag = 0; | |
2903 | int val = 0; | |
2904 | int disabled_breaks = 0; | |
2905 | int hw_breakpoint_error = 0; | |
dd61ec5c | 2906 | int hw_bp_details_reported = 0; |
b775012e LM |
2907 | |
2908 | struct ui_file *tmp_error_stream = mem_fileopen (); | |
2909 | struct cleanup *cleanups = make_cleanup_ui_file_delete (tmp_error_stream); | |
2910 | ||
2911 | /* Explicitly mark the warning -- this will only be printed if | |
2912 | there was an error. */ | |
2913 | fprintf_unfiltered (tmp_error_stream, "Warning:\n"); | |
2914 | ||
2915 | save_current_space_and_thread (); | |
2916 | ||
2917 | ALL_BP_LOCATIONS (bl, blp_tmp) | |
2918 | { | |
2919 | /* We only want to update software breakpoints and hardware | |
2920 | breakpoints. */ | |
2921 | if (!is_breakpoint (bl->owner)) | |
2922 | continue; | |
2923 | ||
2924 | /* We only want to update locations that are already inserted | |
2925 | and need updating. This is to avoid unwanted insertion during | |
2926 | deletion of breakpoints. */ | |
2927 | if (!bl->inserted || (bl->inserted && !bl->needs_update)) | |
2928 | continue; | |
2929 | ||
2930 | switch_to_program_space_and_thread (bl->pspace); | |
2931 | ||
2932 | /* For targets that support global breakpoints, there's no need | |
2933 | to select an inferior to insert breakpoint to. In fact, even | |
2934 | if we aren't attached to any process yet, we should still | |
2935 | insert breakpoints. */ | |
f5656ead | 2936 | if (!gdbarch_has_global_breakpoints (target_gdbarch ()) |
b775012e LM |
2937 | && ptid_equal (inferior_ptid, null_ptid)) |
2938 | continue; | |
2939 | ||
2940 | val = insert_bp_location (bl, tmp_error_stream, &disabled_breaks, | |
dd61ec5c | 2941 | &hw_breakpoint_error, &hw_bp_details_reported); |
b775012e LM |
2942 | if (val) |
2943 | error_flag = val; | |
2944 | } | |
2945 | ||
2946 | if (error_flag) | |
2947 | { | |
2948 | target_terminal_ours_for_output (); | |
2949 | error_stream (tmp_error_stream); | |
2950 | } | |
2951 | ||
2952 | do_cleanups (cleanups); | |
2953 | } | |
2954 | ||
c30eee59 | 2955 | /* Used when starting or continuing the program. */ |
c906108c | 2956 | |
74960c60 VP |
2957 | static void |
2958 | insert_breakpoint_locations (void) | |
c906108c | 2959 | { |
a5606eee | 2960 | struct breakpoint *bpt; |
35df4500 | 2961 | struct bp_location *bl, **blp_tmp; |
eacd795a | 2962 | int error_flag = 0; |
c906108c | 2963 | int val = 0; |
3fbb6ffa | 2964 | int disabled_breaks = 0; |
81d0cc19 | 2965 | int hw_breakpoint_error = 0; |
dd61ec5c | 2966 | int hw_bp_error_explained_already = 0; |
c906108c | 2967 | |
81d0cc19 | 2968 | struct ui_file *tmp_error_stream = mem_fileopen (); |
f7545552 | 2969 | struct cleanup *cleanups = make_cleanup_ui_file_delete (tmp_error_stream); |
74960c60 | 2970 | |
81d0cc19 GS |
2971 | /* Explicitly mark the warning -- this will only be printed if |
2972 | there was an error. */ | |
2973 | fprintf_unfiltered (tmp_error_stream, "Warning:\n"); | |
6c95b8df PA |
2974 | |
2975 | save_current_space_and_thread (); | |
2976 | ||
35df4500 | 2977 | ALL_BP_LOCATIONS (bl, blp_tmp) |
879bfdc2 | 2978 | { |
b775012e | 2979 | if (!should_be_inserted (bl) || (bl->inserted && !bl->needs_update)) |
879bfdc2 DJ |
2980 | continue; |
2981 | ||
4a64f543 MS |
2982 | /* There is no point inserting thread-specific breakpoints if |
2983 | the thread no longer exists. ALL_BP_LOCATIONS bp_location | |
2984 | has BL->OWNER always non-NULL. */ | |
35df4500 TJB |
2985 | if (bl->owner->thread != -1 |
2986 | && !valid_thread_id (bl->owner->thread)) | |
f365de73 AS |
2987 | continue; |
2988 | ||
35df4500 | 2989 | switch_to_program_space_and_thread (bl->pspace); |
6c95b8df PA |
2990 | |
2991 | /* For targets that support global breakpoints, there's no need | |
2992 | to select an inferior to insert breakpoint to. In fact, even | |
2993 | if we aren't attached to any process yet, we should still | |
2994 | insert breakpoints. */ | |
f5656ead | 2995 | if (!gdbarch_has_global_breakpoints (target_gdbarch ()) |
6c95b8df PA |
2996 | && ptid_equal (inferior_ptid, null_ptid)) |
2997 | continue; | |
2998 | ||
3fbb6ffa | 2999 | val = insert_bp_location (bl, tmp_error_stream, &disabled_breaks, |
dd61ec5c | 3000 | &hw_breakpoint_error, &hw_bp_error_explained_already); |
879bfdc2 | 3001 | if (val) |
eacd795a | 3002 | error_flag = val; |
879bfdc2 | 3003 | } |
c906108c | 3004 | |
4a64f543 MS |
3005 | /* If we failed to insert all locations of a watchpoint, remove |
3006 | them, as half-inserted watchpoint is of limited use. */ | |
a5606eee VP |
3007 | ALL_BREAKPOINTS (bpt) |
3008 | { | |
3009 | int some_failed = 0; | |
3010 | struct bp_location *loc; | |
3011 | ||
3012 | if (!is_hardware_watchpoint (bpt)) | |
3013 | continue; | |
3014 | ||
d6b74ac4 | 3015 | if (!breakpoint_enabled (bpt)) |
a5606eee | 3016 | continue; |
74960c60 VP |
3017 | |
3018 | if (bpt->disposition == disp_del_at_next_stop) | |
3019 | continue; | |
a5606eee VP |
3020 | |
3021 | for (loc = bpt->loc; loc; loc = loc->next) | |
56710373 | 3022 | if (!loc->inserted && should_be_inserted (loc)) |
a5606eee VP |
3023 | { |
3024 | some_failed = 1; | |
3025 | break; | |
3026 | } | |
3027 | if (some_failed) | |
3028 | { | |
3029 | for (loc = bpt->loc; loc; loc = loc->next) | |
3030 | if (loc->inserted) | |
3031 | remove_breakpoint (loc, mark_uninserted); | |
3032 | ||
3033 | hw_breakpoint_error = 1; | |
3034 | fprintf_unfiltered (tmp_error_stream, | |
3035 | "Could not insert hardware watchpoint %d.\n", | |
3036 | bpt->number); | |
eacd795a | 3037 | error_flag = -1; |
a5606eee VP |
3038 | } |
3039 | } | |
3040 | ||
eacd795a | 3041 | if (error_flag) |
81d0cc19 GS |
3042 | { |
3043 | /* If a hardware breakpoint or watchpoint was inserted, add a | |
3044 | message about possibly exhausted resources. */ | |
dd61ec5c | 3045 | if (hw_breakpoint_error && !hw_bp_error_explained_already) |
81d0cc19 | 3046 | { |
c6510018 MS |
3047 | fprintf_unfiltered (tmp_error_stream, |
3048 | "Could not insert hardware breakpoints:\n\ | |
3049 | You may have requested too many hardware breakpoints/watchpoints.\n"); | |
81d0cc19 | 3050 | } |
81d0cc19 GS |
3051 | target_terminal_ours_for_output (); |
3052 | error_stream (tmp_error_stream); | |
3053 | } | |
f7545552 TT |
3054 | |
3055 | do_cleanups (cleanups); | |
c906108c SS |
3056 | } |
3057 | ||
c30eee59 TJB |
3058 | /* Used when the program stops. |
3059 | Returns zero if successful, or non-zero if there was a problem | |
3060 | removing a breakpoint location. */ | |
3061 | ||
c906108c | 3062 | int |
fba45db2 | 3063 | remove_breakpoints (void) |
c906108c | 3064 | { |
35df4500 | 3065 | struct bp_location *bl, **blp_tmp; |
3a1bae8e | 3066 | int val = 0; |
c906108c | 3067 | |
35df4500 | 3068 | ALL_BP_LOCATIONS (bl, blp_tmp) |
c5aa993b | 3069 | { |
1e4d1764 | 3070 | if (bl->inserted && !is_tracepoint (bl->owner)) |
35df4500 | 3071 | val |= remove_breakpoint (bl, mark_uninserted); |
c5aa993b | 3072 | } |
3a1bae8e | 3073 | return val; |
c906108c SS |
3074 | } |
3075 | ||
49fa26b0 PA |
3076 | /* When a thread exits, remove breakpoints that are related to |
3077 | that thread. */ | |
3078 | ||
3079 | static void | |
3080 | remove_threaded_breakpoints (struct thread_info *tp, int silent) | |
3081 | { | |
3082 | struct breakpoint *b, *b_tmp; | |
3083 | ||
3084 | ALL_BREAKPOINTS_SAFE (b, b_tmp) | |
3085 | { | |
96181529 | 3086 | if (b->thread == tp->num && user_breakpoint_p (b)) |
49fa26b0 PA |
3087 | { |
3088 | b->disposition = disp_del_at_next_stop; | |
3089 | ||
3090 | printf_filtered (_("\ | |
46ecd527 | 3091 | Thread-specific breakpoint %d deleted - thread %d no longer in the thread list.\n"), |
49fa26b0 PA |
3092 | b->number, tp->num); |
3093 | ||
3094 | /* Hide it from the user. */ | |
3095 | b->number = 0; | |
3096 | } | |
3097 | } | |
3098 | } | |
3099 | ||
6c95b8df PA |
3100 | /* Remove breakpoints of process PID. */ |
3101 | ||
3102 | int | |
3103 | remove_breakpoints_pid (int pid) | |
3104 | { | |
35df4500 | 3105 | struct bp_location *bl, **blp_tmp; |
6c95b8df PA |
3106 | int val; |
3107 | struct inferior *inf = find_inferior_pid (pid); | |
3108 | ||
35df4500 | 3109 | ALL_BP_LOCATIONS (bl, blp_tmp) |
6c95b8df | 3110 | { |
35df4500 | 3111 | if (bl->pspace != inf->pspace) |
6c95b8df PA |
3112 | continue; |
3113 | ||
d3ce09f5 SS |
3114 | if (bl->owner->type == bp_dprintf) |
3115 | continue; | |
3116 | ||
35df4500 | 3117 | if (bl->inserted) |
6c95b8df | 3118 | { |
35df4500 | 3119 | val = remove_breakpoint (bl, mark_uninserted); |
6c95b8df PA |
3120 | if (val != 0) |
3121 | return val; | |
3122 | } | |
3123 | } | |
3124 | return 0; | |
3125 | } | |
3126 | ||
c906108c | 3127 | int |
fba45db2 | 3128 | reattach_breakpoints (int pid) |
c906108c | 3129 | { |
6c95b8df | 3130 | struct cleanup *old_chain; |
35df4500 | 3131 | struct bp_location *bl, **blp_tmp; |
c906108c | 3132 | int val; |
86b887df | 3133 | struct ui_file *tmp_error_stream; |
dd61ec5c | 3134 | int dummy1 = 0, dummy2 = 0, dummy3 = 0; |
6c95b8df PA |
3135 | struct inferior *inf; |
3136 | struct thread_info *tp; | |
3137 | ||
3138 | tp = any_live_thread_of_process (pid); | |
3139 | if (tp == NULL) | |
3140 | return 1; | |
3141 | ||
3142 | inf = find_inferior_pid (pid); | |
3143 | old_chain = save_inferior_ptid (); | |
3144 | ||
3145 | inferior_ptid = tp->ptid; | |
a4954f26 | 3146 | |
86b887df | 3147 | tmp_error_stream = mem_fileopen (); |
a4954f26 | 3148 | make_cleanup_ui_file_delete (tmp_error_stream); |
c906108c | 3149 | |
35df4500 | 3150 | ALL_BP_LOCATIONS (bl, blp_tmp) |
c5aa993b | 3151 | { |
35df4500 | 3152 | if (bl->pspace != inf->pspace) |
6c95b8df PA |
3153 | continue; |
3154 | ||
35df4500 | 3155 | if (bl->inserted) |
c5aa993b | 3156 | { |
35df4500 | 3157 | bl->inserted = 0; |
dd61ec5c | 3158 | val = insert_bp_location (bl, tmp_error_stream, &dummy1, &dummy2, &dummy3); |
c5aa993b JM |
3159 | if (val != 0) |
3160 | { | |
ce696e05 | 3161 | do_cleanups (old_chain); |
c5aa993b JM |
3162 | return val; |
3163 | } | |
3164 | } | |
3165 | } | |
ce696e05 | 3166 | do_cleanups (old_chain); |
c906108c SS |
3167 | return 0; |
3168 | } | |
3169 | ||
e58b0e63 PA |
3170 | static int internal_breakpoint_number = -1; |
3171 | ||
84f4c1fe PM |
3172 | /* Set the breakpoint number of B, depending on the value of INTERNAL. |
3173 | If INTERNAL is non-zero, the breakpoint number will be populated | |
3174 | from internal_breakpoint_number and that variable decremented. | |
e5dd4106 | 3175 | Otherwise the breakpoint number will be populated from |
84f4c1fe PM |
3176 | breakpoint_count and that value incremented. Internal breakpoints |
3177 | do not set the internal var bpnum. */ | |
3178 | static void | |
3179 | set_breakpoint_number (int internal, struct breakpoint *b) | |
3180 | { | |
3181 | if (internal) | |
3182 | b->number = internal_breakpoint_number--; | |
3183 | else | |
3184 | { | |
3185 | set_breakpoint_count (breakpoint_count + 1); | |
3186 | b->number = breakpoint_count; | |
3187 | } | |
3188 | } | |
3189 | ||
e62c965a | 3190 | static struct breakpoint * |
a6d9a66e | 3191 | create_internal_breakpoint (struct gdbarch *gdbarch, |
06edf0c0 | 3192 | CORE_ADDR address, enum bptype type, |
c0a91b2b | 3193 | const struct breakpoint_ops *ops) |
e62c965a | 3194 | { |
e62c965a PP |
3195 | struct symtab_and_line sal; |
3196 | struct breakpoint *b; | |
3197 | ||
4a64f543 | 3198 | init_sal (&sal); /* Initialize to zeroes. */ |
e62c965a PP |
3199 | |
3200 | sal.pc = address; | |
3201 | sal.section = find_pc_overlay (sal.pc); | |
6c95b8df | 3202 | sal.pspace = current_program_space; |
e62c965a | 3203 | |
06edf0c0 | 3204 | b = set_raw_breakpoint (gdbarch, sal, type, ops); |
e62c965a PP |
3205 | b->number = internal_breakpoint_number--; |
3206 | b->disposition = disp_donttouch; | |
3207 | ||
3208 | return b; | |
3209 | } | |
3210 | ||
17450429 PP |
3211 | static const char *const longjmp_names[] = |
3212 | { | |
3213 | "longjmp", "_longjmp", "siglongjmp", "_siglongjmp" | |
3214 | }; | |
3215 | #define NUM_LONGJMP_NAMES ARRAY_SIZE(longjmp_names) | |
3216 | ||
3217 | /* Per-objfile data private to breakpoint.c. */ | |
3218 | struct breakpoint_objfile_data | |
3219 | { | |
3220 | /* Minimal symbol for "_ovly_debug_event" (if any). */ | |
3b7344d5 | 3221 | struct bound_minimal_symbol overlay_msym; |
17450429 PP |
3222 | |
3223 | /* Minimal symbol(s) for "longjmp", "siglongjmp", etc. (if any). */ | |
3b7344d5 | 3224 | struct bound_minimal_symbol longjmp_msym[NUM_LONGJMP_NAMES]; |
17450429 | 3225 | |
28106bc2 SDJ |
3226 | /* True if we have looked for longjmp probes. */ |
3227 | int longjmp_searched; | |
3228 | ||
3229 | /* SystemTap probe points for longjmp (if any). */ | |
3230 | VEC (probe_p) *longjmp_probes; | |
3231 | ||
17450429 | 3232 | /* Minimal symbol for "std::terminate()" (if any). */ |
3b7344d5 | 3233 | struct bound_minimal_symbol terminate_msym; |
17450429 PP |
3234 | |
3235 | /* Minimal symbol for "_Unwind_DebugHook" (if any). */ | |
3b7344d5 | 3236 | struct bound_minimal_symbol exception_msym; |
28106bc2 SDJ |
3237 | |
3238 | /* True if we have looked for exception probes. */ | |
3239 | int exception_searched; | |
3240 | ||
3241 | /* SystemTap probe points for unwinding (if any). */ | |
3242 | VEC (probe_p) *exception_probes; | |
17450429 PP |
3243 | }; |
3244 | ||
3245 | static const struct objfile_data *breakpoint_objfile_key; | |
3246 | ||
3247 | /* Minimal symbol not found sentinel. */ | |
3248 | static struct minimal_symbol msym_not_found; | |
3249 | ||
3250 | /* Returns TRUE if MSYM point to the "not found" sentinel. */ | |
3251 | ||
3252 | static int | |
3253 | msym_not_found_p (const struct minimal_symbol *msym) | |
3254 | { | |
3255 | return msym == &msym_not_found; | |
3256 | } | |
3257 | ||
3258 | /* Return per-objfile data needed by breakpoint.c. | |
3259 | Allocate the data if necessary. */ | |
3260 | ||
3261 | static struct breakpoint_objfile_data * | |
3262 | get_breakpoint_objfile_data (struct objfile *objfile) | |
3263 | { | |
3264 | struct breakpoint_objfile_data *bp_objfile_data; | |
3265 | ||
3266 | bp_objfile_data = objfile_data (objfile, breakpoint_objfile_key); | |
3267 | if (bp_objfile_data == NULL) | |
3268 | { | |
3269 | bp_objfile_data = obstack_alloc (&objfile->objfile_obstack, | |
3270 | sizeof (*bp_objfile_data)); | |
3271 | ||
3272 | memset (bp_objfile_data, 0, sizeof (*bp_objfile_data)); | |
3273 | set_objfile_data (objfile, breakpoint_objfile_key, bp_objfile_data); | |
3274 | } | |
3275 | return bp_objfile_data; | |
3276 | } | |
3277 | ||
28106bc2 SDJ |
3278 | static void |
3279 | free_breakpoint_probes (struct objfile *obj, void *data) | |
3280 | { | |
3281 | struct breakpoint_objfile_data *bp_objfile_data = data; | |
3282 | ||
3283 | VEC_free (probe_p, bp_objfile_data->longjmp_probes); | |
3284 | VEC_free (probe_p, bp_objfile_data->exception_probes); | |
3285 | } | |
3286 | ||
e62c965a | 3287 | static void |
af02033e | 3288 | create_overlay_event_breakpoint (void) |
e62c965a | 3289 | { |
69de3c6a | 3290 | struct objfile *objfile; |
af02033e | 3291 | const char *const func_name = "_ovly_debug_event"; |
e62c965a | 3292 | |
69de3c6a PP |
3293 | ALL_OBJFILES (objfile) |
3294 | { | |
3295 | struct breakpoint *b; | |
17450429 PP |
3296 | struct breakpoint_objfile_data *bp_objfile_data; |
3297 | CORE_ADDR addr; | |
69de3c6a | 3298 | |
17450429 PP |
3299 | bp_objfile_data = get_breakpoint_objfile_data (objfile); |
3300 | ||
3b7344d5 | 3301 | if (msym_not_found_p (bp_objfile_data->overlay_msym.minsym)) |
17450429 PP |
3302 | continue; |
3303 | ||
3b7344d5 | 3304 | if (bp_objfile_data->overlay_msym.minsym == NULL) |
17450429 | 3305 | { |
3b7344d5 | 3306 | struct bound_minimal_symbol m; |
17450429 PP |
3307 | |
3308 | m = lookup_minimal_symbol_text (func_name, objfile); | |
3b7344d5 | 3309 | if (m.minsym == NULL) |
17450429 PP |
3310 | { |
3311 | /* Avoid future lookups in this objfile. */ | |
3b7344d5 | 3312 | bp_objfile_data->overlay_msym.minsym = &msym_not_found; |
17450429 PP |
3313 | continue; |
3314 | } | |
3315 | bp_objfile_data->overlay_msym = m; | |
3316 | } | |
e62c965a | 3317 | |
77e371c0 | 3318 | addr = BMSYMBOL_VALUE_ADDRESS (bp_objfile_data->overlay_msym); |
17450429 | 3319 | b = create_internal_breakpoint (get_objfile_arch (objfile), addr, |
06edf0c0 PA |
3320 | bp_overlay_event, |
3321 | &internal_breakpoint_ops); | |
69de3c6a | 3322 | b->addr_string = xstrdup (func_name); |
e62c965a | 3323 | |
69de3c6a PP |
3324 | if (overlay_debugging == ovly_auto) |
3325 | { | |
3326 | b->enable_state = bp_enabled; | |
3327 | overlay_events_enabled = 1; | |
3328 | } | |
3329 | else | |
3330 | { | |
3331 | b->enable_state = bp_disabled; | |
3332 | overlay_events_enabled = 0; | |
3333 | } | |
e62c965a PP |
3334 | } |
3335 | update_global_location_list (1); | |
3336 | } | |
3337 | ||
0fd8e87f | 3338 | static void |
af02033e | 3339 | create_longjmp_master_breakpoint (void) |
0fd8e87f | 3340 | { |
6c95b8df | 3341 | struct program_space *pspace; |
6c95b8df PA |
3342 | struct cleanup *old_chain; |
3343 | ||
3344 | old_chain = save_current_program_space (); | |
0fd8e87f | 3345 | |
6c95b8df | 3346 | ALL_PSPACES (pspace) |
af02033e PP |
3347 | { |
3348 | struct objfile *objfile; | |
3349 | ||
3350 | set_current_program_space (pspace); | |
3351 | ||
3352 | ALL_OBJFILES (objfile) | |
0fd8e87f | 3353 | { |
af02033e PP |
3354 | int i; |
3355 | struct gdbarch *gdbarch; | |
17450429 | 3356 | struct breakpoint_objfile_data *bp_objfile_data; |
0fd8e87f | 3357 | |
af02033e | 3358 | gdbarch = get_objfile_arch (objfile); |
0fd8e87f | 3359 | |
17450429 PP |
3360 | bp_objfile_data = get_breakpoint_objfile_data (objfile); |
3361 | ||
28106bc2 SDJ |
3362 | if (!bp_objfile_data->longjmp_searched) |
3363 | { | |
25f9533e SDJ |
3364 | VEC (probe_p) *ret; |
3365 | ||
3366 | ret = find_probes_in_objfile (objfile, "libc", "longjmp"); | |
3367 | if (ret != NULL) | |
3368 | { | |
3369 | /* We are only interested in checking one element. */ | |
3370 | struct probe *p = VEC_index (probe_p, ret, 0); | |
3371 | ||
3372 | if (!can_evaluate_probe_arguments (p)) | |
3373 | { | |
3374 | /* We cannot use the probe interface here, because it does | |
3375 | not know how to evaluate arguments. */ | |
3376 | VEC_free (probe_p, ret); | |
3377 | ret = NULL; | |
3378 | } | |
3379 | } | |
3380 | bp_objfile_data->longjmp_probes = ret; | |
28106bc2 SDJ |
3381 | bp_objfile_data->longjmp_searched = 1; |
3382 | } | |
3383 | ||
3384 | if (bp_objfile_data->longjmp_probes != NULL) | |
3385 | { | |
3386 | int i; | |
3387 | struct probe *probe; | |
3388 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
3389 | ||
3390 | for (i = 0; | |
3391 | VEC_iterate (probe_p, | |
3392 | bp_objfile_data->longjmp_probes, | |
3393 | i, probe); | |
3394 | ++i) | |
3395 | { | |
3396 | struct breakpoint *b; | |
3397 | ||
729662a5 TT |
3398 | b = create_internal_breakpoint (gdbarch, |
3399 | get_probe_address (probe, | |
3400 | objfile), | |
28106bc2 SDJ |
3401 | bp_longjmp_master, |
3402 | &internal_breakpoint_ops); | |
3403 | b->addr_string = xstrdup ("-probe-stap libc:longjmp"); | |
3404 | b->enable_state = bp_disabled; | |
3405 | } | |
3406 | ||
3407 | continue; | |
3408 | } | |
3409 | ||
0569175e TSD |
3410 | if (!gdbarch_get_longjmp_target_p (gdbarch)) |
3411 | continue; | |
3412 | ||
17450429 | 3413 | for (i = 0; i < NUM_LONGJMP_NAMES; i++) |
af02033e PP |
3414 | { |
3415 | struct breakpoint *b; | |
af02033e | 3416 | const char *func_name; |
17450429 | 3417 | CORE_ADDR addr; |
6c95b8df | 3418 | |
3b7344d5 | 3419 | if (msym_not_found_p (bp_objfile_data->longjmp_msym[i].minsym)) |
af02033e | 3420 | continue; |
0fd8e87f | 3421 | |
17450429 | 3422 | func_name = longjmp_names[i]; |
3b7344d5 | 3423 | if (bp_objfile_data->longjmp_msym[i].minsym == NULL) |
17450429 | 3424 | { |
3b7344d5 | 3425 | struct bound_minimal_symbol m; |
17450429 PP |
3426 | |
3427 | m = lookup_minimal_symbol_text (func_name, objfile); | |
3b7344d5 | 3428 | if (m.minsym == NULL) |
17450429 PP |
3429 | { |
3430 | /* Prevent future lookups in this objfile. */ | |
3b7344d5 | 3431 | bp_objfile_data->longjmp_msym[i].minsym = &msym_not_found; |
17450429 PP |
3432 | continue; |
3433 | } | |
3434 | bp_objfile_data->longjmp_msym[i] = m; | |
3435 | } | |
3436 | ||
77e371c0 | 3437 | addr = BMSYMBOL_VALUE_ADDRESS (bp_objfile_data->longjmp_msym[i]); |
06edf0c0 PA |
3438 | b = create_internal_breakpoint (gdbarch, addr, bp_longjmp_master, |
3439 | &internal_breakpoint_ops); | |
af02033e PP |
3440 | b->addr_string = xstrdup (func_name); |
3441 | b->enable_state = bp_disabled; | |
3442 | } | |
0fd8e87f | 3443 | } |
af02033e | 3444 | } |
0fd8e87f | 3445 | update_global_location_list (1); |
6c95b8df PA |
3446 | |
3447 | do_cleanups (old_chain); | |
0fd8e87f UW |
3448 | } |
3449 | ||
af02033e | 3450 | /* Create a master std::terminate breakpoint. */ |
aa7d318d | 3451 | static void |
af02033e | 3452 | create_std_terminate_master_breakpoint (void) |
aa7d318d TT |
3453 | { |
3454 | struct program_space *pspace; | |
aa7d318d | 3455 | struct cleanup *old_chain; |
af02033e | 3456 | const char *const func_name = "std::terminate()"; |
aa7d318d TT |
3457 | |
3458 | old_chain = save_current_program_space (); | |
3459 | ||
3460 | ALL_PSPACES (pspace) | |
17450429 PP |
3461 | { |
3462 | struct objfile *objfile; | |
3463 | CORE_ADDR addr; | |
3464 | ||
3465 | set_current_program_space (pspace); | |
3466 | ||
aa7d318d TT |
3467 | ALL_OBJFILES (objfile) |
3468 | { | |
3469 | struct breakpoint *b; | |
17450429 | 3470 | struct breakpoint_objfile_data *bp_objfile_data; |
aa7d318d | 3471 | |
17450429 | 3472 | bp_objfile_data = get_breakpoint_objfile_data (objfile); |
aa7d318d | 3473 | |
3b7344d5 | 3474 | if (msym_not_found_p (bp_objfile_data->terminate_msym.minsym)) |
17450429 PP |
3475 | continue; |
3476 | ||
3b7344d5 | 3477 | if (bp_objfile_data->terminate_msym.minsym == NULL) |
17450429 | 3478 | { |
3b7344d5 | 3479 | struct bound_minimal_symbol m; |
17450429 PP |
3480 | |
3481 | m = lookup_minimal_symbol (func_name, NULL, objfile); | |
3b7344d5 TT |
3482 | if (m.minsym == NULL || (MSYMBOL_TYPE (m.minsym) != mst_text |
3483 | && MSYMBOL_TYPE (m.minsym) != mst_file_text)) | |
17450429 PP |
3484 | { |
3485 | /* Prevent future lookups in this objfile. */ | |
3b7344d5 | 3486 | bp_objfile_data->terminate_msym.minsym = &msym_not_found; |
17450429 PP |
3487 | continue; |
3488 | } | |
3489 | bp_objfile_data->terminate_msym = m; | |
3490 | } | |
aa7d318d | 3491 | |
77e371c0 | 3492 | addr = BMSYMBOL_VALUE_ADDRESS (bp_objfile_data->terminate_msym); |
17450429 | 3493 | b = create_internal_breakpoint (get_objfile_arch (objfile), addr, |
06edf0c0 PA |
3494 | bp_std_terminate_master, |
3495 | &internal_breakpoint_ops); | |
aa7d318d TT |
3496 | b->addr_string = xstrdup (func_name); |
3497 | b->enable_state = bp_disabled; | |
3498 | } | |
17450429 PP |
3499 | } |
3500 | ||
aa7d318d TT |
3501 | update_global_location_list (1); |
3502 | ||
3503 | do_cleanups (old_chain); | |
3504 | } | |
3505 | ||
186c406b TT |
3506 | /* Install a master breakpoint on the unwinder's debug hook. */ |
3507 | ||
70221824 | 3508 | static void |
186c406b TT |
3509 | create_exception_master_breakpoint (void) |
3510 | { | |
3511 | struct objfile *objfile; | |
17450429 | 3512 | const char *const func_name = "_Unwind_DebugHook"; |
186c406b TT |
3513 | |
3514 | ALL_OBJFILES (objfile) | |
3515 | { | |
17450429 PP |
3516 | struct breakpoint *b; |
3517 | struct gdbarch *gdbarch; | |
3518 | struct breakpoint_objfile_data *bp_objfile_data; | |
3519 | CORE_ADDR addr; | |
3520 | ||
3521 | bp_objfile_data = get_breakpoint_objfile_data (objfile); | |
3522 | ||
28106bc2 SDJ |
3523 | /* We prefer the SystemTap probe point if it exists. */ |
3524 | if (!bp_objfile_data->exception_searched) | |
3525 | { | |
25f9533e SDJ |
3526 | VEC (probe_p) *ret; |
3527 | ||
3528 | ret = find_probes_in_objfile (objfile, "libgcc", "unwind"); | |
3529 | ||
3530 | if (ret != NULL) | |
3531 | { | |
3532 | /* We are only interested in checking one element. */ | |
3533 | struct probe *p = VEC_index (probe_p, ret, 0); | |
3534 | ||
3535 | if (!can_evaluate_probe_arguments (p)) | |
3536 | { | |
3537 | /* We cannot use the probe interface here, because it does | |
3538 | not know how to evaluate arguments. */ | |
3539 | VEC_free (probe_p, ret); | |
3540 | ret = NULL; | |
3541 | } | |
3542 | } | |
3543 | bp_objfile_data->exception_probes = ret; | |
28106bc2 SDJ |
3544 | bp_objfile_data->exception_searched = 1; |
3545 | } | |
3546 | ||
3547 | if (bp_objfile_data->exception_probes != NULL) | |
3548 | { | |
3549 | struct gdbarch *gdbarch = get_objfile_arch (objfile); | |
3550 | int i; | |
3551 | struct probe *probe; | |
3552 | ||
3553 | for (i = 0; | |
3554 | VEC_iterate (probe_p, | |
3555 | bp_objfile_data->exception_probes, | |
3556 | i, probe); | |
3557 | ++i) | |
3558 | { | |
3559 | struct breakpoint *b; | |
3560 | ||
729662a5 TT |
3561 | b = create_internal_breakpoint (gdbarch, |
3562 | get_probe_address (probe, | |
3563 | objfile), | |
28106bc2 SDJ |
3564 | bp_exception_master, |
3565 | &internal_breakpoint_ops); | |
3566 | b->addr_string = xstrdup ("-probe-stap libgcc:unwind"); | |
3567 | b->enable_state = bp_disabled; | |
3568 | } | |
3569 | ||
3570 | continue; | |
3571 | } | |
3572 | ||
3573 | /* Otherwise, try the hook function. */ | |
3574 | ||
3b7344d5 | 3575 | if (msym_not_found_p (bp_objfile_data->exception_msym.minsym)) |
17450429 PP |
3576 | continue; |
3577 | ||
3578 | gdbarch = get_objfile_arch (objfile); | |
186c406b | 3579 | |
3b7344d5 | 3580 | if (bp_objfile_data->exception_msym.minsym == NULL) |
186c406b | 3581 | { |
3b7344d5 | 3582 | struct bound_minimal_symbol debug_hook; |
186c406b | 3583 | |
17450429 | 3584 | debug_hook = lookup_minimal_symbol (func_name, NULL, objfile); |
3b7344d5 | 3585 | if (debug_hook.minsym == NULL) |
17450429 | 3586 | { |
3b7344d5 | 3587 | bp_objfile_data->exception_msym.minsym = &msym_not_found; |
17450429 PP |
3588 | continue; |
3589 | } | |
3590 | ||
3591 | bp_objfile_data->exception_msym = debug_hook; | |
186c406b | 3592 | } |
17450429 | 3593 | |
77e371c0 | 3594 | addr = BMSYMBOL_VALUE_ADDRESS (bp_objfile_data->exception_msym); |
17450429 PP |
3595 | addr = gdbarch_convert_from_func_ptr_addr (gdbarch, addr, |
3596 | ¤t_target); | |
06edf0c0 PA |
3597 | b = create_internal_breakpoint (gdbarch, addr, bp_exception_master, |
3598 | &internal_breakpoint_ops); | |
17450429 PP |
3599 | b->addr_string = xstrdup (func_name); |
3600 | b->enable_state = bp_disabled; | |
186c406b TT |
3601 | } |
3602 | ||
3603 | update_global_location_list (1); | |
3604 | } | |
3605 | ||
c906108c | 3606 | void |
fba45db2 | 3607 | update_breakpoints_after_exec (void) |
c906108c | 3608 | { |
35df4500 | 3609 | struct breakpoint *b, *b_tmp; |
876fa593 | 3610 | struct bp_location *bploc, **bplocp_tmp; |
c906108c | 3611 | |
25b22b0a PA |
3612 | /* We're about to delete breakpoints from GDB's lists. If the |
3613 | INSERTED flag is true, GDB will try to lift the breakpoints by | |
3614 | writing the breakpoints' "shadow contents" back into memory. The | |
3615 | "shadow contents" are NOT valid after an exec, so GDB should not | |
3616 | do that. Instead, the target is responsible from marking | |
3617 | breakpoints out as soon as it detects an exec. We don't do that | |
3618 | here instead, because there may be other attempts to delete | |
3619 | breakpoints after detecting an exec and before reaching here. */ | |
876fa593 | 3620 | ALL_BP_LOCATIONS (bploc, bplocp_tmp) |
6c95b8df PA |
3621 | if (bploc->pspace == current_program_space) |
3622 | gdb_assert (!bploc->inserted); | |
c906108c | 3623 | |
35df4500 | 3624 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
c5aa993b | 3625 | { |
6c95b8df PA |
3626 | if (b->pspace != current_program_space) |
3627 | continue; | |
3628 | ||
4a64f543 | 3629 | /* Solib breakpoints must be explicitly reset after an exec(). */ |
c5aa993b JM |
3630 | if (b->type == bp_shlib_event) |
3631 | { | |
3632 | delete_breakpoint (b); | |
3633 | continue; | |
3634 | } | |
c906108c | 3635 | |
4a64f543 | 3636 | /* JIT breakpoints must be explicitly reset after an exec(). */ |
4efc6507 DE |
3637 | if (b->type == bp_jit_event) |
3638 | { | |
3639 | delete_breakpoint (b); | |
3640 | continue; | |
3641 | } | |
3642 | ||
1900040c | 3643 | /* Thread event breakpoints must be set anew after an exec(), |
0fd8e87f UW |
3644 | as must overlay event and longjmp master breakpoints. */ |
3645 | if (b->type == bp_thread_event || b->type == bp_overlay_event | |
186c406b TT |
3646 | || b->type == bp_longjmp_master || b->type == bp_std_terminate_master |
3647 | || b->type == bp_exception_master) | |
c4093a6a JM |
3648 | { |
3649 | delete_breakpoint (b); | |
3650 | continue; | |
3651 | } | |
3652 | ||
4a64f543 | 3653 | /* Step-resume breakpoints are meaningless after an exec(). */ |
2c03e5be | 3654 | if (b->type == bp_step_resume || b->type == bp_hp_step_resume) |
c5aa993b JM |
3655 | { |
3656 | delete_breakpoint (b); | |
3657 | continue; | |
3658 | } | |
3659 | ||
611c83ae PA |
3660 | /* Longjmp and longjmp-resume breakpoints are also meaningless |
3661 | after an exec. */ | |
186c406b | 3662 | if (b->type == bp_longjmp || b->type == bp_longjmp_resume |
e2e4d78b | 3663 | || b->type == bp_longjmp_call_dummy |
186c406b | 3664 | || b->type == bp_exception || b->type == bp_exception_resume) |
611c83ae PA |
3665 | { |
3666 | delete_breakpoint (b); | |
3667 | continue; | |
3668 | } | |
3669 | ||
ce78b96d JB |
3670 | if (b->type == bp_catchpoint) |
3671 | { | |
3672 | /* For now, none of the bp_catchpoint breakpoints need to | |
3673 | do anything at this point. In the future, if some of | |
3674 | the catchpoints need to something, we will need to add | |
3675 | a new method, and call this method from here. */ | |
3676 | continue; | |
3677 | } | |
3678 | ||
c5aa993b JM |
3679 | /* bp_finish is a special case. The only way we ought to be able |
3680 | to see one of these when an exec() has happened, is if the user | |
3681 | caught a vfork, and then said "finish". Ordinarily a finish just | |
3682 | carries them to the call-site of the current callee, by setting | |
3683 | a temporary bp there and resuming. But in this case, the finish | |
3684 | will carry them entirely through the vfork & exec. | |
3685 | ||
3686 | We don't want to allow a bp_finish to remain inserted now. But | |
3687 | we can't safely delete it, 'cause finish_command has a handle to | |
3688 | the bp on a bpstat, and will later want to delete it. There's a | |
3689 | chance (and I've seen it happen) that if we delete the bp_finish | |
3690 | here, that its storage will get reused by the time finish_command | |
3691 | gets 'round to deleting the "use to be a bp_finish" breakpoint. | |
3692 | We really must allow finish_command to delete a bp_finish. | |
3693 | ||
e5dd4106 | 3694 | In the absence of a general solution for the "how do we know |
53a5351d JM |
3695 | it's safe to delete something others may have handles to?" |
3696 | problem, what we'll do here is just uninsert the bp_finish, and | |
3697 | let finish_command delete it. | |
3698 | ||
3699 | (We know the bp_finish is "doomed" in the sense that it's | |
3700 | momentary, and will be deleted as soon as finish_command sees | |
3701 | the inferior stopped. So it doesn't matter that the bp's | |
3702 | address is probably bogus in the new a.out, unlike e.g., the | |
3703 | solib breakpoints.) */ | |
c5aa993b | 3704 | |
c5aa993b JM |
3705 | if (b->type == bp_finish) |
3706 | { | |
3707 | continue; | |
3708 | } | |
3709 | ||
3710 | /* Without a symbolic address, we have little hope of the | |
3711 | pre-exec() address meaning the same thing in the post-exec() | |
4a64f543 | 3712 | a.out. */ |
c5aa993b JM |
3713 | if (b->addr_string == NULL) |
3714 | { | |
3715 | delete_breakpoint (b); | |
3716 | continue; | |
3717 | } | |
c5aa993b | 3718 | } |
1900040c | 3719 | /* FIXME what about longjmp breakpoints? Re-create them here? */ |
af02033e PP |
3720 | create_overlay_event_breakpoint (); |
3721 | create_longjmp_master_breakpoint (); | |
3722 | create_std_terminate_master_breakpoint (); | |
186c406b | 3723 | create_exception_master_breakpoint (); |
c906108c SS |
3724 | } |
3725 | ||
3726 | int | |
d80ee84f | 3727 | detach_breakpoints (ptid_t ptid) |
c906108c | 3728 | { |
35df4500 | 3729 | struct bp_location *bl, **blp_tmp; |
3a1bae8e | 3730 | int val = 0; |
ce696e05 | 3731 | struct cleanup *old_chain = save_inferior_ptid (); |
6c95b8df | 3732 | struct inferior *inf = current_inferior (); |
c5aa993b | 3733 | |
dfd4cc63 | 3734 | if (ptid_get_pid (ptid) == ptid_get_pid (inferior_ptid)) |
8a3fe4f8 | 3735 | error (_("Cannot detach breakpoints of inferior_ptid")); |
c5aa993b | 3736 | |
6c95b8df | 3737 | /* Set inferior_ptid; remove_breakpoint_1 uses this global. */ |
d80ee84f | 3738 | inferior_ptid = ptid; |
35df4500 | 3739 | ALL_BP_LOCATIONS (bl, blp_tmp) |
c5aa993b | 3740 | { |
35df4500 | 3741 | if (bl->pspace != inf->pspace) |
6c95b8df PA |
3742 | continue; |
3743 | ||
bd9673a4 PW |
3744 | /* This function must physically remove breakpoints locations |
3745 | from the specified ptid, without modifying the breakpoint | |
3746 | package's state. Locations of type bp_loc_other are only | |
3747 | maintained at GDB side. So, there is no need to remove | |
3748 | these bp_loc_other locations. Moreover, removing these | |
3749 | would modify the breakpoint package's state. */ | |
3750 | if (bl->loc_type == bp_loc_other) | |
3751 | continue; | |
3752 | ||
35df4500 TJB |
3753 | if (bl->inserted) |
3754 | val |= remove_breakpoint_1 (bl, mark_inserted); | |
c5aa993b | 3755 | } |
d03285ec UW |
3756 | |
3757 | /* Detach single-step breakpoints as well. */ | |
3758 | detach_single_step_breakpoints (); | |
3759 | ||
ce696e05 | 3760 | do_cleanups (old_chain); |
3a1bae8e | 3761 | return val; |
c906108c SS |
3762 | } |
3763 | ||
35df4500 | 3764 | /* Remove the breakpoint location BL from the current address space. |
6c95b8df PA |
3765 | Note that this is used to detach breakpoints from a child fork. |
3766 | When we get here, the child isn't in the inferior list, and neither | |
3767 | do we have objects to represent its address space --- we should | |
35df4500 | 3768 | *not* look at bl->pspace->aspace here. */ |
6c95b8df | 3769 | |
c906108c | 3770 | static int |
35df4500 | 3771 | remove_breakpoint_1 (struct bp_location *bl, insertion_state_t is) |
c906108c SS |
3772 | { |
3773 | int val; | |
c5aa993b | 3774 | |
35df4500 TJB |
3775 | /* BL is never in moribund_locations by our callers. */ |
3776 | gdb_assert (bl->owner != NULL); | |
2bdf28a0 | 3777 | |
35df4500 | 3778 | if (bl->owner->enable_state == bp_permanent) |
c2c6d25f JM |
3779 | /* Permanent breakpoints cannot be inserted or removed. */ |
3780 | return 0; | |
3781 | ||
74960c60 VP |
3782 | /* The type of none suggests that owner is actually deleted. |
3783 | This should not ever happen. */ | |
35df4500 | 3784 | gdb_assert (bl->owner->type != bp_none); |
0bde7532 | 3785 | |
35df4500 TJB |
3786 | if (bl->loc_type == bp_loc_software_breakpoint |
3787 | || bl->loc_type == bp_loc_hardware_breakpoint) | |
c906108c | 3788 | { |
c02f5703 MS |
3789 | /* "Normal" instruction breakpoint: either the standard |
3790 | trap-instruction bp (bp_breakpoint), or a | |
3791 | bp_hardware_breakpoint. */ | |
3792 | ||
3793 | /* First check to see if we have to handle an overlay. */ | |
3794 | if (overlay_debugging == ovly_off | |
35df4500 TJB |
3795 | || bl->section == NULL |
3796 | || !(section_is_overlay (bl->section))) | |
c02f5703 MS |
3797 | { |
3798 | /* No overlay handling: just remove the breakpoint. */ | |
08351840 PA |
3799 | |
3800 | /* If we're trying to uninsert a memory breakpoint that we | |
3801 | know is set in a dynamic object that is marked | |
3802 | shlib_disabled, then either the dynamic object was | |
3803 | removed with "remove-symbol-file" or with | |
3804 | "nosharedlibrary". In the former case, we don't know | |
3805 | whether another dynamic object might have loaded over the | |
3806 | breakpoint's address -- the user might well let us know | |
3807 | about it next with add-symbol-file (the whole point of | |
3808 | OBJF_USERLOADED is letting the user manually maintain a | |
3809 | list of dynamically loaded objects). If we have the | |
3810 | breakpoint's shadow memory, that is, this is a software | |
3811 | breakpoint managed by GDB, check whether the breakpoint | |
3812 | is still inserted in memory, to avoid overwriting wrong | |
3813 | code with stale saved shadow contents. Note that HW | |
3814 | breakpoints don't have shadow memory, as they're | |
3815 | implemented using a mechanism that is not dependent on | |
3816 | being able to modify the target's memory, and as such | |
3817 | they should always be removed. */ | |
3818 | if (bl->shlib_disabled | |
3819 | && bl->target_info.shadow_len != 0 | |
3820 | && !memory_validate_breakpoint (bl->gdbarch, &bl->target_info)) | |
3821 | val = 0; | |
3822 | else | |
3823 | val = bl->owner->ops->remove_location (bl); | |
c02f5703 | 3824 | } |
c906108c SS |
3825 | else |
3826 | { | |
4a64f543 | 3827 | /* This breakpoint is in an overlay section. |
c02f5703 MS |
3828 | Did we set a breakpoint at the LMA? */ |
3829 | if (!overlay_events_enabled) | |
3830 | { | |
3831 | /* Yes -- overlay event support is not active, so we | |
3832 | should have set a breakpoint at the LMA. Remove it. | |
3833 | */ | |
c02f5703 MS |
3834 | /* Ignore any failures: if the LMA is in ROM, we will |
3835 | have already warned when we failed to insert it. */ | |
35df4500 TJB |
3836 | if (bl->loc_type == bp_loc_hardware_breakpoint) |
3837 | target_remove_hw_breakpoint (bl->gdbarch, | |
3838 | &bl->overlay_target_info); | |
c02f5703 | 3839 | else |
35df4500 TJB |
3840 | target_remove_breakpoint (bl->gdbarch, |
3841 | &bl->overlay_target_info); | |
c02f5703 MS |
3842 | } |
3843 | /* Did we set a breakpoint at the VMA? | |
3844 | If so, we will have marked the breakpoint 'inserted'. */ | |
35df4500 | 3845 | if (bl->inserted) |
c906108c | 3846 | { |
c02f5703 MS |
3847 | /* Yes -- remove it. Previously we did not bother to |
3848 | remove the breakpoint if the section had been | |
3849 | unmapped, but let's not rely on that being safe. We | |
3850 | don't know what the overlay manager might do. */ | |
aa67235e UW |
3851 | |
3852 | /* However, we should remove *software* breakpoints only | |
3853 | if the section is still mapped, or else we overwrite | |
3854 | wrong code with the saved shadow contents. */ | |
348d480f PA |
3855 | if (bl->loc_type == bp_loc_hardware_breakpoint |
3856 | || section_is_mapped (bl->section)) | |
3857 | val = bl->owner->ops->remove_location (bl); | |
aa67235e UW |
3858 | else |
3859 | val = 0; | |
c906108c | 3860 | } |
c02f5703 MS |
3861 | else |
3862 | { | |
3863 | /* No -- not inserted, so no need to remove. No error. */ | |
3864 | val = 0; | |
3865 | } | |
c906108c | 3866 | } |
879d1e6b | 3867 | |
08351840 PA |
3868 | /* In some cases, we might not be able to remove a breakpoint in |
3869 | a shared library that has already been removed, but we have | |
3870 | not yet processed the shlib unload event. Similarly for an | |
3871 | unloaded add-symbol-file object - the user might not yet have | |
3872 | had the chance to remove-symbol-file it. shlib_disabled will | |
3873 | be set if the library/object has already been removed, but | |
3874 | the breakpoint hasn't been uninserted yet, e.g., after | |
3875 | "nosharedlibrary" or "remove-symbol-file" with breakpoints | |
3876 | always-inserted mode. */ | |
076855f9 | 3877 | if (val |
08351840 PA |
3878 | && (bl->loc_type == bp_loc_software_breakpoint |
3879 | && (bl->shlib_disabled | |
3880 | || solib_name_from_address (bl->pspace, bl->address) | |
3881 | || userloaded_objfile_contains_address_p (bl->pspace, | |
3882 | bl->address)))) | |
879d1e6b UW |
3883 | val = 0; |
3884 | ||
c906108c SS |
3885 | if (val) |
3886 | return val; | |
35df4500 | 3887 | bl->inserted = (is == mark_inserted); |
c906108c | 3888 | } |
35df4500 | 3889 | else if (bl->loc_type == bp_loc_hardware_watchpoint) |
c906108c | 3890 | { |
77b06cd7 TJB |
3891 | gdb_assert (bl->owner->ops != NULL |
3892 | && bl->owner->ops->remove_location != NULL); | |
3893 | ||
35df4500 | 3894 | bl->inserted = (is == mark_inserted); |
77b06cd7 | 3895 | bl->owner->ops->remove_location (bl); |
2e70b7b9 | 3896 | |
c906108c | 3897 | /* Failure to remove any of the hardware watchpoints comes here. */ |
35df4500 | 3898 | if ((is == mark_uninserted) && (bl->inserted)) |
8a3fe4f8 | 3899 | warning (_("Could not remove hardware watchpoint %d."), |
35df4500 | 3900 | bl->owner->number); |
c906108c | 3901 | } |
35df4500 TJB |
3902 | else if (bl->owner->type == bp_catchpoint |
3903 | && breakpoint_enabled (bl->owner) | |
3904 | && !bl->duplicate) | |
ce78b96d | 3905 | { |
77b06cd7 TJB |
3906 | gdb_assert (bl->owner->ops != NULL |
3907 | && bl->owner->ops->remove_location != NULL); | |
ce78b96d | 3908 | |
77b06cd7 | 3909 | val = bl->owner->ops->remove_location (bl); |
ce78b96d JB |
3910 | if (val) |
3911 | return val; | |
77b06cd7 | 3912 | |
35df4500 | 3913 | bl->inserted = (is == mark_inserted); |
ce78b96d | 3914 | } |
c906108c SS |
3915 | |
3916 | return 0; | |
3917 | } | |
3918 | ||
6c95b8df | 3919 | static int |
35df4500 | 3920 | remove_breakpoint (struct bp_location *bl, insertion_state_t is) |
6c95b8df PA |
3921 | { |
3922 | int ret; | |
3923 | struct cleanup *old_chain; | |
3924 | ||
35df4500 TJB |
3925 | /* BL is never in moribund_locations by our callers. */ |
3926 | gdb_assert (bl->owner != NULL); | |
2bdf28a0 | 3927 | |
35df4500 | 3928 | if (bl->owner->enable_state == bp_permanent) |
6c95b8df PA |
3929 | /* Permanent breakpoints cannot be inserted or removed. */ |
3930 | return 0; | |
3931 | ||
3932 | /* The type of none suggests that owner is actually deleted. | |
3933 | This should not ever happen. */ | |
35df4500 | 3934 | gdb_assert (bl->owner->type != bp_none); |
6c95b8df PA |
3935 | |
3936 | old_chain = save_current_space_and_thread (); | |
3937 | ||
35df4500 | 3938 | switch_to_program_space_and_thread (bl->pspace); |
6c95b8df | 3939 | |
35df4500 | 3940 | ret = remove_breakpoint_1 (bl, is); |
6c95b8df PA |
3941 | |
3942 | do_cleanups (old_chain); | |
3943 | return ret; | |
3944 | } | |
3945 | ||
c906108c SS |
3946 | /* Clear the "inserted" flag in all breakpoints. */ |
3947 | ||
25b22b0a | 3948 | void |
fba45db2 | 3949 | mark_breakpoints_out (void) |
c906108c | 3950 | { |
35df4500 | 3951 | struct bp_location *bl, **blp_tmp; |
c906108c | 3952 | |
35df4500 TJB |
3953 | ALL_BP_LOCATIONS (bl, blp_tmp) |
3954 | if (bl->pspace == current_program_space) | |
3955 | bl->inserted = 0; | |
c906108c SS |
3956 | } |
3957 | ||
53a5351d JM |
3958 | /* Clear the "inserted" flag in all breakpoints and delete any |
3959 | breakpoints which should go away between runs of the program. | |
c906108c SS |
3960 | |
3961 | Plus other such housekeeping that has to be done for breakpoints | |
3962 | between runs. | |
3963 | ||
53a5351d JM |
3964 | Note: this function gets called at the end of a run (by |
3965 | generic_mourn_inferior) and when a run begins (by | |
4a64f543 | 3966 | init_wait_for_inferior). */ |
c906108c SS |
3967 | |
3968 | ||
3969 | ||
3970 | void | |
fba45db2 | 3971 | breakpoint_init_inferior (enum inf_context context) |
c906108c | 3972 | { |
35df4500 TJB |
3973 | struct breakpoint *b, *b_tmp; |
3974 | struct bp_location *bl, **blp_tmp; | |
1c5cfe86 | 3975 | int ix; |
6c95b8df | 3976 | struct program_space *pspace = current_program_space; |
c906108c | 3977 | |
50c71eaf PA |
3978 | /* If breakpoint locations are shared across processes, then there's |
3979 | nothing to do. */ | |
f5656ead | 3980 | if (gdbarch_has_global_breakpoints (target_gdbarch ())) |
50c71eaf PA |
3981 | return; |
3982 | ||
35df4500 | 3983 | ALL_BP_LOCATIONS (bl, blp_tmp) |
6c95b8df | 3984 | { |
35df4500 TJB |
3985 | /* ALL_BP_LOCATIONS bp_location has BL->OWNER always non-NULL. */ |
3986 | if (bl->pspace == pspace | |
3987 | && bl->owner->enable_state != bp_permanent) | |
3988 | bl->inserted = 0; | |
6c95b8df | 3989 | } |
075f6582 | 3990 | |
35df4500 | 3991 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
c5aa993b | 3992 | { |
6c95b8df PA |
3993 | if (b->loc && b->loc->pspace != pspace) |
3994 | continue; | |
3995 | ||
c5aa993b JM |
3996 | switch (b->type) |
3997 | { | |
3998 | case bp_call_dummy: | |
e2e4d78b | 3999 | case bp_longjmp_call_dummy: |
c906108c | 4000 | |
c5aa993b | 4001 | /* If the call dummy breakpoint is at the entry point it will |
ab92d69b PA |
4002 | cause problems when the inferior is rerun, so we better get |
4003 | rid of it. */ | |
4004 | ||
4005 | case bp_watchpoint_scope: | |
4006 | ||
4007 | /* Also get rid of scope breakpoints. */ | |
4008 | ||
4009 | case bp_shlib_event: | |
4010 | ||
4011 | /* Also remove solib event breakpoints. Their addresses may | |
4012 | have changed since the last time we ran the program. | |
4013 | Actually we may now be debugging against different target; | |
4014 | and so the solib backend that installed this breakpoint may | |
4015 | not be used in by the target. E.g., | |
4016 | ||
4017 | (gdb) file prog-linux | |
4018 | (gdb) run # native linux target | |
4019 | ... | |
4020 | (gdb) kill | |
4021 | (gdb) file prog-win.exe | |
4022 | (gdb) tar rem :9999 # remote Windows gdbserver. | |
4023 | */ | |
c906108c | 4024 | |
f59f708a PA |
4025 | case bp_step_resume: |
4026 | ||
4027 | /* Also remove step-resume breakpoints. */ | |
4028 | ||
c5aa993b JM |
4029 | delete_breakpoint (b); |
4030 | break; | |
c906108c | 4031 | |
c5aa993b JM |
4032 | case bp_watchpoint: |
4033 | case bp_hardware_watchpoint: | |
4034 | case bp_read_watchpoint: | |
4035 | case bp_access_watchpoint: | |
3a5c3e22 PA |
4036 | { |
4037 | struct watchpoint *w = (struct watchpoint *) b; | |
c906108c | 4038 | |
3a5c3e22 PA |
4039 | /* Likewise for watchpoints on local expressions. */ |
4040 | if (w->exp_valid_block != NULL) | |
4041 | delete_breakpoint (b); | |
4042 | else if (context == inf_starting) | |
4043 | { | |
4044 | /* Reset val field to force reread of starting value in | |
4045 | insert_breakpoints. */ | |
4046 | if (w->val) | |
4047 | value_free (w->val); | |
4048 | w->val = NULL; | |
4049 | w->val_valid = 0; | |
c860120c | 4050 | } |
3a5c3e22 | 4051 | } |
c5aa993b JM |
4052 | break; |
4053 | default: | |
c5aa993b JM |
4054 | break; |
4055 | } | |
4056 | } | |
1c5cfe86 PA |
4057 | |
4058 | /* Get rid of the moribund locations. */ | |
35df4500 TJB |
4059 | for (ix = 0; VEC_iterate (bp_location_p, moribund_locations, ix, bl); ++ix) |
4060 | decref_bp_location (&bl); | |
1c5cfe86 | 4061 | VEC_free (bp_location_p, moribund_locations); |
c906108c SS |
4062 | } |
4063 | ||
6c95b8df PA |
4064 | /* These functions concern about actual breakpoints inserted in the |
4065 | target --- to e.g. check if we need to do decr_pc adjustment or if | |
4066 | we need to hop over the bkpt --- so we check for address space | |
4067 | match, not program space. */ | |
4068 | ||
c2c6d25f JM |
4069 | /* breakpoint_here_p (PC) returns non-zero if an enabled breakpoint |
4070 | exists at PC. It returns ordinary_breakpoint_here if it's an | |
4071 | ordinary breakpoint, or permanent_breakpoint_here if it's a | |
4072 | permanent breakpoint. | |
4073 | - When continuing from a location with an ordinary breakpoint, we | |
4074 | actually single step once before calling insert_breakpoints. | |
e5dd4106 | 4075 | - When continuing from a location with a permanent breakpoint, we |
c2c6d25f JM |
4076 | need to use the `SKIP_PERMANENT_BREAKPOINT' macro, provided by |
4077 | the target, to advance the PC past the breakpoint. */ | |
c906108c | 4078 | |
c2c6d25f | 4079 | enum breakpoint_here |
6c95b8df | 4080 | breakpoint_here_p (struct address_space *aspace, CORE_ADDR pc) |
c906108c | 4081 | { |
35df4500 | 4082 | struct bp_location *bl, **blp_tmp; |
c2c6d25f | 4083 | int any_breakpoint_here = 0; |
c906108c | 4084 | |
35df4500 | 4085 | ALL_BP_LOCATIONS (bl, blp_tmp) |
075f6582 | 4086 | { |
35df4500 TJB |
4087 | if (bl->loc_type != bp_loc_software_breakpoint |
4088 | && bl->loc_type != bp_loc_hardware_breakpoint) | |
075f6582 DJ |
4089 | continue; |
4090 | ||
f1310107 | 4091 | /* ALL_BP_LOCATIONS bp_location has BL->OWNER always non-NULL. */ |
35df4500 TJB |
4092 | if ((breakpoint_enabled (bl->owner) |
4093 | || bl->owner->enable_state == bp_permanent) | |
f1310107 | 4094 | && breakpoint_location_address_match (bl, aspace, pc)) |
075f6582 DJ |
4095 | { |
4096 | if (overlay_debugging | |
35df4500 TJB |
4097 | && section_is_overlay (bl->section) |
4098 | && !section_is_mapped (bl->section)) | |
075f6582 | 4099 | continue; /* unmapped overlay -- can't be a match */ |
35df4500 | 4100 | else if (bl->owner->enable_state == bp_permanent) |
075f6582 DJ |
4101 | return permanent_breakpoint_here; |
4102 | else | |
4103 | any_breakpoint_here = 1; | |
4104 | } | |
4105 | } | |
c906108c | 4106 | |
c2c6d25f | 4107 | return any_breakpoint_here ? ordinary_breakpoint_here : 0; |
c906108c SS |
4108 | } |
4109 | ||
1c5cfe86 PA |
4110 | /* Return true if there's a moribund breakpoint at PC. */ |
4111 | ||
4112 | int | |
6c95b8df | 4113 | moribund_breakpoint_here_p (struct address_space *aspace, CORE_ADDR pc) |
1c5cfe86 PA |
4114 | { |
4115 | struct bp_location *loc; | |
4116 | int ix; | |
4117 | ||
4118 | for (ix = 0; VEC_iterate (bp_location_p, moribund_locations, ix, loc); ++ix) | |
f1310107 | 4119 | if (breakpoint_location_address_match (loc, aspace, pc)) |
1c5cfe86 PA |
4120 | return 1; |
4121 | ||
4122 | return 0; | |
4123 | } | |
c2c6d25f | 4124 | |
c36b740a | 4125 | /* Returns non-zero if there's a breakpoint inserted at PC, which is |
4a64f543 MS |
4126 | inserted using regular breakpoint_chain / bp_location array |
4127 | mechanism. This does not check for single-step breakpoints, which | |
4128 | are inserted and removed using direct target manipulation. */ | |
c906108c SS |
4129 | |
4130 | int | |
4a64f543 MS |
4131 | regular_breakpoint_inserted_here_p (struct address_space *aspace, |
4132 | CORE_ADDR pc) | |
c906108c | 4133 | { |
35df4500 | 4134 | struct bp_location *bl, **blp_tmp; |
c906108c | 4135 | |
35df4500 | 4136 | ALL_BP_LOCATIONS (bl, blp_tmp) |
c5aa993b | 4137 | { |
35df4500 TJB |
4138 | if (bl->loc_type != bp_loc_software_breakpoint |
4139 | && bl->loc_type != bp_loc_hardware_breakpoint) | |
075f6582 DJ |
4140 | continue; |
4141 | ||
35df4500 | 4142 | if (bl->inserted |
f1310107 | 4143 | && breakpoint_location_address_match (bl, aspace, pc)) |
075f6582 DJ |
4144 | { |
4145 | if (overlay_debugging | |
35df4500 TJB |
4146 | && section_is_overlay (bl->section) |
4147 | && !section_is_mapped (bl->section)) | |
075f6582 DJ |
4148 | continue; /* unmapped overlay -- can't be a match */ |
4149 | else | |
4150 | return 1; | |
4151 | } | |
c5aa993b | 4152 | } |
c36b740a VP |
4153 | return 0; |
4154 | } | |
4155 | ||
4156 | /* Returns non-zero iff there's either regular breakpoint | |
4157 | or a single step breakpoint inserted at PC. */ | |
4158 | ||
4159 | int | |
6c95b8df | 4160 | breakpoint_inserted_here_p (struct address_space *aspace, CORE_ADDR pc) |
c36b740a | 4161 | { |
6c95b8df | 4162 | if (regular_breakpoint_inserted_here_p (aspace, pc)) |
c36b740a | 4163 | return 1; |
c906108c | 4164 | |
6c95b8df | 4165 | if (single_step_breakpoint_inserted_here_p (aspace, pc)) |
1aafd4da UW |
4166 | return 1; |
4167 | ||
c906108c SS |
4168 | return 0; |
4169 | } | |
4170 | ||
ef370185 JB |
4171 | /* Ignoring deprecated raw breakpoints, return non-zero iff there is a |
4172 | software breakpoint inserted at PC. */ | |
4fa8626c | 4173 | |
ef370185 JB |
4174 | static struct bp_location * |
4175 | find_non_raw_software_breakpoint_inserted_here (struct address_space *aspace, | |
4176 | CORE_ADDR pc) | |
4fa8626c | 4177 | { |
35df4500 | 4178 | struct bp_location *bl, **blp_tmp; |
4fa8626c | 4179 | |
35df4500 | 4180 | ALL_BP_LOCATIONS (bl, blp_tmp) |
4fa8626c | 4181 | { |
35df4500 | 4182 | if (bl->loc_type != bp_loc_software_breakpoint) |
4fa8626c DJ |
4183 | continue; |
4184 | ||
35df4500 TJB |
4185 | if (bl->inserted |
4186 | && breakpoint_address_match (bl->pspace->aspace, bl->address, | |
6c95b8df | 4187 | aspace, pc)) |
4fa8626c DJ |
4188 | { |
4189 | if (overlay_debugging | |
35df4500 TJB |
4190 | && section_is_overlay (bl->section) |
4191 | && !section_is_mapped (bl->section)) | |
4fa8626c DJ |
4192 | continue; /* unmapped overlay -- can't be a match */ |
4193 | else | |
ef370185 | 4194 | return bl; |
4fa8626c DJ |
4195 | } |
4196 | } | |
4197 | ||
ef370185 JB |
4198 | return NULL; |
4199 | } | |
4200 | ||
4201 | /* This function returns non-zero iff there is a software breakpoint | |
4202 | inserted at PC. */ | |
4203 | ||
4204 | int | |
4205 | software_breakpoint_inserted_here_p (struct address_space *aspace, | |
4206 | CORE_ADDR pc) | |
4207 | { | |
4208 | if (find_non_raw_software_breakpoint_inserted_here (aspace, pc) != NULL) | |
4209 | return 1; | |
4210 | ||
1aafd4da | 4211 | /* Also check for software single-step breakpoints. */ |
6c95b8df | 4212 | if (single_step_breakpoint_inserted_here_p (aspace, pc)) |
1aafd4da UW |
4213 | return 1; |
4214 | ||
4fa8626c DJ |
4215 | return 0; |
4216 | } | |
4217 | ||
9093389c PA |
4218 | int |
4219 | hardware_watchpoint_inserted_in_range (struct address_space *aspace, | |
4220 | CORE_ADDR addr, ULONGEST len) | |
4221 | { | |
4222 | struct breakpoint *bpt; | |
4223 | ||
4224 | ALL_BREAKPOINTS (bpt) | |
4225 | { | |
4226 | struct bp_location *loc; | |
4227 | ||
4228 | if (bpt->type != bp_hardware_watchpoint | |
4229 | && bpt->type != bp_access_watchpoint) | |
4230 | continue; | |
4231 | ||
4232 | if (!breakpoint_enabled (bpt)) | |
4233 | continue; | |
4234 | ||
4235 | for (loc = bpt->loc; loc; loc = loc->next) | |
4236 | if (loc->pspace->aspace == aspace && loc->inserted) | |
4237 | { | |
4238 | CORE_ADDR l, h; | |
4239 | ||
4240 | /* Check for intersection. */ | |
4241 | l = max (loc->address, addr); | |
4242 | h = min (loc->address + loc->length, addr + len); | |
4243 | if (l < h) | |
4244 | return 1; | |
4245 | } | |
4246 | } | |
4247 | return 0; | |
4248 | } | |
4249 | ||
075f6582 DJ |
4250 | /* breakpoint_thread_match (PC, PTID) returns true if the breakpoint at |
4251 | PC is valid for process/thread PTID. */ | |
c906108c SS |
4252 | |
4253 | int | |
6c95b8df PA |
4254 | breakpoint_thread_match (struct address_space *aspace, CORE_ADDR pc, |
4255 | ptid_t ptid) | |
c906108c | 4256 | { |
35df4500 | 4257 | struct bp_location *bl, **blp_tmp; |
4a306c9a | 4258 | /* The thread and task IDs associated to PTID, computed lazily. */ |
a6f1cd96 | 4259 | int thread = -1; |
4a306c9a | 4260 | int task = 0; |
a6f1cd96 | 4261 | |
35df4500 | 4262 | ALL_BP_LOCATIONS (bl, blp_tmp) |
c5aa993b | 4263 | { |
35df4500 TJB |
4264 | if (bl->loc_type != bp_loc_software_breakpoint |
4265 | && bl->loc_type != bp_loc_hardware_breakpoint) | |
075f6582 DJ |
4266 | continue; |
4267 | ||
35df4500 TJB |
4268 | /* ALL_BP_LOCATIONS bp_location has bl->OWNER always non-NULL. */ |
4269 | if (!breakpoint_enabled (bl->owner) | |
4270 | && bl->owner->enable_state != bp_permanent) | |
a6f1cd96 JB |
4271 | continue; |
4272 | ||
f1310107 | 4273 | if (!breakpoint_location_address_match (bl, aspace, pc)) |
a6f1cd96 JB |
4274 | continue; |
4275 | ||
35df4500 | 4276 | if (bl->owner->thread != -1) |
075f6582 | 4277 | { |
a6f1cd96 JB |
4278 | /* This is a thread-specific breakpoint. Check that ptid |
4279 | matches that thread. If thread hasn't been computed yet, | |
4280 | it is now time to do so. */ | |
4281 | if (thread == -1) | |
4282 | thread = pid_to_thread_id (ptid); | |
35df4500 | 4283 | if (bl->owner->thread != thread) |
a6f1cd96 | 4284 | continue; |
075f6582 | 4285 | } |
a6f1cd96 | 4286 | |
35df4500 | 4287 | if (bl->owner->task != 0) |
4a306c9a JB |
4288 | { |
4289 | /* This is a task-specific breakpoint. Check that ptid | |
4290 | matches that task. If task hasn't been computed yet, | |
4291 | it is now time to do so. */ | |
4292 | if (task == 0) | |
4293 | task = ada_get_task_number (ptid); | |
35df4500 | 4294 | if (bl->owner->task != task) |
4a306c9a JB |
4295 | continue; |
4296 | } | |
4297 | ||
a6f1cd96 | 4298 | if (overlay_debugging |
35df4500 TJB |
4299 | && section_is_overlay (bl->section) |
4300 | && !section_is_mapped (bl->section)) | |
a6f1cd96 JB |
4301 | continue; /* unmapped overlay -- can't be a match */ |
4302 | ||
4303 | return 1; | |
c5aa993b | 4304 | } |
c906108c SS |
4305 | |
4306 | return 0; | |
4307 | } | |
c906108c | 4308 | \f |
c5aa993b | 4309 | |
c906108c SS |
4310 | /* bpstat stuff. External routines' interfaces are documented |
4311 | in breakpoint.h. */ | |
4312 | ||
4313 | int | |
c326b90e | 4314 | is_catchpoint (struct breakpoint *ep) |
c906108c | 4315 | { |
533be4dd | 4316 | return (ep->type == bp_catchpoint); |
c906108c SS |
4317 | } |
4318 | ||
f431efe5 PA |
4319 | /* Frees any storage that is part of a bpstat. Does not walk the |
4320 | 'next' chain. */ | |
4321 | ||
4322 | static void | |
198757a8 VP |
4323 | bpstat_free (bpstat bs) |
4324 | { | |
4325 | if (bs->old_val != NULL) | |
4326 | value_free (bs->old_val); | |
9add0f1b | 4327 | decref_counted_command_line (&bs->commands); |
f431efe5 | 4328 | decref_bp_location (&bs->bp_location_at); |
198757a8 VP |
4329 | xfree (bs); |
4330 | } | |
4331 | ||
c906108c SS |
4332 | /* Clear a bpstat so that it says we are not at any breakpoint. |
4333 | Also free any storage that is part of a bpstat. */ | |
4334 | ||
4335 | void | |
fba45db2 | 4336 | bpstat_clear (bpstat *bsp) |
c906108c SS |
4337 | { |
4338 | bpstat p; | |
4339 | bpstat q; | |
4340 | ||
4341 | if (bsp == 0) | |
4342 | return; | |
4343 | p = *bsp; | |
4344 | while (p != NULL) | |
4345 | { | |
4346 | q = p->next; | |
198757a8 | 4347 | bpstat_free (p); |
c906108c SS |
4348 | p = q; |
4349 | } | |
4350 | *bsp = NULL; | |
4351 | } | |
4352 | ||
4353 | /* Return a copy of a bpstat. Like "bs1 = bs2" but all storage that | |
4354 | is part of the bpstat is copied as well. */ | |
4355 | ||
4356 | bpstat | |
fba45db2 | 4357 | bpstat_copy (bpstat bs) |
c906108c SS |
4358 | { |
4359 | bpstat p = NULL; | |
4360 | bpstat tmp; | |
4361 | bpstat retval = NULL; | |
4362 | ||
4363 | if (bs == NULL) | |
4364 | return bs; | |
4365 | ||
4366 | for (; bs != NULL; bs = bs->next) | |
4367 | { | |
4368 | tmp = (bpstat) xmalloc (sizeof (*tmp)); | |
4369 | memcpy (tmp, bs, sizeof (*tmp)); | |
9add0f1b | 4370 | incref_counted_command_line (tmp->commands); |
f431efe5 | 4371 | incref_bp_location (tmp->bp_location_at); |
31cc81e9 | 4372 | if (bs->old_val != NULL) |
3c3185ac JK |
4373 | { |
4374 | tmp->old_val = value_copy (bs->old_val); | |
4375 | release_value (tmp->old_val); | |
4376 | } | |
31cc81e9 | 4377 | |
c906108c SS |
4378 | if (p == NULL) |
4379 | /* This is the first thing in the chain. */ | |
4380 | retval = tmp; | |
4381 | else | |
4382 | p->next = tmp; | |
4383 | p = tmp; | |
4384 | } | |
4385 | p->next = NULL; | |
4386 | return retval; | |
4387 | } | |
4388 | ||
4a64f543 | 4389 | /* Find the bpstat associated with this breakpoint. */ |
c906108c SS |
4390 | |
4391 | bpstat | |
fba45db2 | 4392 | bpstat_find_breakpoint (bpstat bsp, struct breakpoint *breakpoint) |
c906108c | 4393 | { |
c5aa993b JM |
4394 | if (bsp == NULL) |
4395 | return NULL; | |
c906108c | 4396 | |
c5aa993b JM |
4397 | for (; bsp != NULL; bsp = bsp->next) |
4398 | { | |
f431efe5 | 4399 | if (bsp->breakpoint_at == breakpoint) |
c5aa993b JM |
4400 | return bsp; |
4401 | } | |
c906108c SS |
4402 | return NULL; |
4403 | } | |
4404 | ||
ab04a2af TT |
4405 | /* See breakpoint.h. */ |
4406 | ||
47591c29 | 4407 | int |
427cd150 | 4408 | bpstat_explains_signal (bpstat bsp, enum gdb_signal sig) |
ab04a2af | 4409 | { |
ab04a2af TT |
4410 | for (; bsp != NULL; bsp = bsp->next) |
4411 | { | |
427cd150 TT |
4412 | if (bsp->breakpoint_at == NULL) |
4413 | { | |
4414 | /* A moribund location can never explain a signal other than | |
4415 | GDB_SIGNAL_TRAP. */ | |
4416 | if (sig == GDB_SIGNAL_TRAP) | |
47591c29 | 4417 | return 1; |
427cd150 TT |
4418 | } |
4419 | else | |
47591c29 PA |
4420 | { |
4421 | if (bsp->breakpoint_at->ops->explains_signal (bsp->breakpoint_at, | |
4422 | sig)) | |
4423 | return 1; | |
4424 | } | |
ab04a2af TT |
4425 | } |
4426 | ||
47591c29 | 4427 | return 0; |
ab04a2af TT |
4428 | } |
4429 | ||
4a64f543 MS |
4430 | /* Put in *NUM the breakpoint number of the first breakpoint we are |
4431 | stopped at. *BSP upon return is a bpstat which points to the | |
4432 | remaining breakpoints stopped at (but which is not guaranteed to be | |
4433 | good for anything but further calls to bpstat_num). | |
4434 | ||
8671a17b PA |
4435 | Return 0 if passed a bpstat which does not indicate any breakpoints. |
4436 | Return -1 if stopped at a breakpoint that has been deleted since | |
4437 | we set it. | |
4438 | Return 1 otherwise. */ | |
c906108c SS |
4439 | |
4440 | int | |
8671a17b | 4441 | bpstat_num (bpstat *bsp, int *num) |
c906108c SS |
4442 | { |
4443 | struct breakpoint *b; | |
4444 | ||
4445 | if ((*bsp) == NULL) | |
4446 | return 0; /* No more breakpoint values */ | |
8671a17b | 4447 | |
4a64f543 MS |
4448 | /* We assume we'll never have several bpstats that correspond to a |
4449 | single breakpoint -- otherwise, this function might return the | |
4450 | same number more than once and this will look ugly. */ | |
f431efe5 | 4451 | b = (*bsp)->breakpoint_at; |
8671a17b PA |
4452 | *bsp = (*bsp)->next; |
4453 | if (b == NULL) | |
4454 | return -1; /* breakpoint that's been deleted since */ | |
4455 | ||
4456 | *num = b->number; /* We have its number */ | |
4457 | return 1; | |
c906108c SS |
4458 | } |
4459 | ||
e93ca019 | 4460 | /* See breakpoint.h. */ |
c906108c SS |
4461 | |
4462 | void | |
e93ca019 | 4463 | bpstat_clear_actions (void) |
c906108c | 4464 | { |
e93ca019 JK |
4465 | struct thread_info *tp; |
4466 | bpstat bs; | |
4467 | ||
4468 | if (ptid_equal (inferior_ptid, null_ptid)) | |
4469 | return; | |
4470 | ||
4471 | tp = find_thread_ptid (inferior_ptid); | |
4472 | if (tp == NULL) | |
4473 | return; | |
4474 | ||
4475 | for (bs = tp->control.stop_bpstat; bs != NULL; bs = bs->next) | |
c906108c | 4476 | { |
9add0f1b | 4477 | decref_counted_command_line (&bs->commands); |
abf85f46 | 4478 | |
c906108c SS |
4479 | if (bs->old_val != NULL) |
4480 | { | |
4481 | value_free (bs->old_val); | |
4482 | bs->old_val = NULL; | |
4483 | } | |
4484 | } | |
4485 | } | |
4486 | ||
f3b1572e PA |
4487 | /* Called when a command is about to proceed the inferior. */ |
4488 | ||
4489 | static void | |
4490 | breakpoint_about_to_proceed (void) | |
4491 | { | |
4492 | if (!ptid_equal (inferior_ptid, null_ptid)) | |
4493 | { | |
4494 | struct thread_info *tp = inferior_thread (); | |
4495 | ||
4496 | /* Allow inferior function calls in breakpoint commands to not | |
4497 | interrupt the command list. When the call finishes | |
4498 | successfully, the inferior will be standing at the same | |
4499 | breakpoint as if nothing happened. */ | |
16c381f0 | 4500 | if (tp->control.in_infcall) |
f3b1572e PA |
4501 | return; |
4502 | } | |
4503 | ||
4504 | breakpoint_proceeded = 1; | |
4505 | } | |
4506 | ||
4a64f543 MS |
4507 | /* Stub for cleaning up our state if we error-out of a breakpoint |
4508 | command. */ | |
c906108c | 4509 | static void |
4efb68b1 | 4510 | cleanup_executing_breakpoints (void *ignore) |
c906108c SS |
4511 | { |
4512 | executing_breakpoint_commands = 0; | |
4513 | } | |
4514 | ||
abf85f46 JK |
4515 | /* Return non-zero iff CMD as the first line of a command sequence is `silent' |
4516 | or its equivalent. */ | |
4517 | ||
4518 | static int | |
4519 | command_line_is_silent (struct command_line *cmd) | |
4520 | { | |
4521 | return cmd && (strcmp ("silent", cmd->line) == 0 | |
4522 | || (xdb_commands && strcmp ("Q", cmd->line) == 0)); | |
4523 | } | |
4524 | ||
4a64f543 MS |
4525 | /* Execute all the commands associated with all the breakpoints at |
4526 | this location. Any of these commands could cause the process to | |
4527 | proceed beyond this point, etc. We look out for such changes by | |
4528 | checking the global "breakpoint_proceeded" after each command. | |
c906108c | 4529 | |
347bddb7 PA |
4530 | Returns true if a breakpoint command resumed the inferior. In that |
4531 | case, it is the caller's responsibility to recall it again with the | |
4532 | bpstat of the current thread. */ | |
4533 | ||
4534 | static int | |
4535 | bpstat_do_actions_1 (bpstat *bsp) | |
c906108c SS |
4536 | { |
4537 | bpstat bs; | |
4538 | struct cleanup *old_chain; | |
347bddb7 | 4539 | int again = 0; |
c906108c SS |
4540 | |
4541 | /* Avoid endless recursion if a `source' command is contained | |
4542 | in bs->commands. */ | |
4543 | if (executing_breakpoint_commands) | |
347bddb7 | 4544 | return 0; |
c906108c SS |
4545 | |
4546 | executing_breakpoint_commands = 1; | |
4547 | old_chain = make_cleanup (cleanup_executing_breakpoints, 0); | |
4548 | ||
cf6c5ffb TT |
4549 | prevent_dont_repeat (); |
4550 | ||
4a64f543 | 4551 | /* This pointer will iterate over the list of bpstat's. */ |
c906108c SS |
4552 | bs = *bsp; |
4553 | ||
4554 | breakpoint_proceeded = 0; | |
4555 | for (; bs != NULL; bs = bs->next) | |
4556 | { | |
9add0f1b | 4557 | struct counted_command_line *ccmd; |
6c50ab1c JB |
4558 | struct command_line *cmd; |
4559 | struct cleanup *this_cmd_tree_chain; | |
4560 | ||
4561 | /* Take ownership of the BSP's command tree, if it has one. | |
4562 | ||
4563 | The command tree could legitimately contain commands like | |
4564 | 'step' and 'next', which call clear_proceed_status, which | |
4565 | frees stop_bpstat's command tree. To make sure this doesn't | |
4566 | free the tree we're executing out from under us, we need to | |
4567 | take ownership of the tree ourselves. Since a given bpstat's | |
4568 | commands are only executed once, we don't need to copy it; we | |
4569 | can clear the pointer in the bpstat, and make sure we free | |
4570 | the tree when we're done. */ | |
9add0f1b TT |
4571 | ccmd = bs->commands; |
4572 | bs->commands = NULL; | |
abf85f46 JK |
4573 | this_cmd_tree_chain = make_cleanup_decref_counted_command_line (&ccmd); |
4574 | cmd = ccmd ? ccmd->commands : NULL; | |
4575 | if (command_line_is_silent (cmd)) | |
4576 | { | |
4577 | /* The action has been already done by bpstat_stop_status. */ | |
4578 | cmd = cmd->next; | |
4579 | } | |
6c50ab1c | 4580 | |
c906108c SS |
4581 | while (cmd != NULL) |
4582 | { | |
4583 | execute_control_command (cmd); | |
4584 | ||
4585 | if (breakpoint_proceeded) | |
4586 | break; | |
4587 | else | |
4588 | cmd = cmd->next; | |
4589 | } | |
6c50ab1c JB |
4590 | |
4591 | /* We can free this command tree now. */ | |
4592 | do_cleanups (this_cmd_tree_chain); | |
4593 | ||
c906108c | 4594 | if (breakpoint_proceeded) |
32c1e744 VP |
4595 | { |
4596 | if (target_can_async_p ()) | |
347bddb7 PA |
4597 | /* If we are in async mode, then the target might be still |
4598 | running, not stopped at any breakpoint, so nothing for | |
4599 | us to do here -- just return to the event loop. */ | |
4600 | ; | |
32c1e744 VP |
4601 | else |
4602 | /* In sync mode, when execute_control_command returns | |
4603 | we're already standing on the next breakpoint. | |
347bddb7 PA |
4604 | Breakpoint commands for that stop were not run, since |
4605 | execute_command does not run breakpoint commands -- | |
4606 | only command_line_handler does, but that one is not | |
4607 | involved in execution of breakpoint commands. So, we | |
4608 | can now execute breakpoint commands. It should be | |
4609 | noted that making execute_command do bpstat actions is | |
4610 | not an option -- in this case we'll have recursive | |
4611 | invocation of bpstat for each breakpoint with a | |
4612 | command, and can easily blow up GDB stack. Instead, we | |
4613 | return true, which will trigger the caller to recall us | |
4614 | with the new stop_bpstat. */ | |
4615 | again = 1; | |
4616 | break; | |
32c1e744 | 4617 | } |
c906108c | 4618 | } |
c2b8ed2c | 4619 | do_cleanups (old_chain); |
347bddb7 PA |
4620 | return again; |
4621 | } | |
4622 | ||
4623 | void | |
4624 | bpstat_do_actions (void) | |
4625 | { | |
353d1d73 JK |
4626 | struct cleanup *cleanup_if_error = make_bpstat_clear_actions_cleanup (); |
4627 | ||
347bddb7 PA |
4628 | /* Do any commands attached to breakpoint we are stopped at. */ |
4629 | while (!ptid_equal (inferior_ptid, null_ptid) | |
4630 | && target_has_execution | |
4631 | && !is_exited (inferior_ptid) | |
4632 | && !is_executing (inferior_ptid)) | |
4633 | /* Since in sync mode, bpstat_do_actions may resume the inferior, | |
4634 | and only return when it is stopped at the next breakpoint, we | |
4635 | keep doing breakpoint actions until it returns false to | |
4636 | indicate the inferior was not resumed. */ | |
16c381f0 | 4637 | if (!bpstat_do_actions_1 (&inferior_thread ()->control.stop_bpstat)) |
347bddb7 | 4638 | break; |
353d1d73 JK |
4639 | |
4640 | discard_cleanups (cleanup_if_error); | |
c906108c SS |
4641 | } |
4642 | ||
fa4727a6 DJ |
4643 | /* Print out the (old or new) value associated with a watchpoint. */ |
4644 | ||
4645 | static void | |
4646 | watchpoint_value_print (struct value *val, struct ui_file *stream) | |
4647 | { | |
4648 | if (val == NULL) | |
4649 | fprintf_unfiltered (stream, _("<unreadable>")); | |
4650 | else | |
79a45b7d TT |
4651 | { |
4652 | struct value_print_options opts; | |
4653 | get_user_print_options (&opts); | |
4654 | value_print (val, stream, &opts); | |
4655 | } | |
fa4727a6 DJ |
4656 | } |
4657 | ||
e514a9d6 | 4658 | /* Generic routine for printing messages indicating why we |
4a64f543 | 4659 | stopped. The behavior of this function depends on the value |
e514a9d6 JM |
4660 | 'print_it' in the bpstat structure. Under some circumstances we |
4661 | may decide not to print anything here and delegate the task to | |
4a64f543 | 4662 | normal_stop(). */ |
e514a9d6 JM |
4663 | |
4664 | static enum print_stop_action | |
4665 | print_bp_stop_message (bpstat bs) | |
4666 | { | |
4667 | switch (bs->print_it) | |
4668 | { | |
4669 | case print_it_noop: | |
4a64f543 | 4670 | /* Nothing should be printed for this bpstat entry. */ |
e514a9d6 JM |
4671 | return PRINT_UNKNOWN; |
4672 | break; | |
4673 | ||
4674 | case print_it_done: | |
4675 | /* We still want to print the frame, but we already printed the | |
4a64f543 | 4676 | relevant messages. */ |
e514a9d6 JM |
4677 | return PRINT_SRC_AND_LOC; |
4678 | break; | |
4679 | ||
4680 | case print_it_normal: | |
4f8d1dc6 | 4681 | { |
f431efe5 PA |
4682 | struct breakpoint *b = bs->breakpoint_at; |
4683 | ||
1a6a67de TJB |
4684 | /* bs->breakpoint_at can be NULL if it was a momentary breakpoint |
4685 | which has since been deleted. */ | |
4686 | if (b == NULL) | |
4687 | return PRINT_UNKNOWN; | |
4688 | ||
348d480f PA |
4689 | /* Normal case. Call the breakpoint's print_it method. */ |
4690 | return b->ops->print_it (bs); | |
4f8d1dc6 | 4691 | } |
348d480f | 4692 | break; |
3086aeae | 4693 | |
e514a9d6 | 4694 | default: |
8e65ff28 | 4695 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 4696 | _("print_bp_stop_message: unrecognized enum value")); |
e514a9d6 | 4697 | break; |
c906108c | 4698 | } |
c906108c SS |
4699 | } |
4700 | ||
edcc5120 TT |
4701 | /* A helper function that prints a shared library stopped event. */ |
4702 | ||
4703 | static void | |
4704 | print_solib_event (int is_catchpoint) | |
4705 | { | |
4706 | int any_deleted | |
4707 | = !VEC_empty (char_ptr, current_program_space->deleted_solibs); | |
4708 | int any_added | |
4709 | = !VEC_empty (so_list_ptr, current_program_space->added_solibs); | |
4710 | ||
4711 | if (!is_catchpoint) | |
4712 | { | |
4713 | if (any_added || any_deleted) | |
4714 | ui_out_text (current_uiout, | |
4715 | _("Stopped due to shared library event:\n")); | |
4716 | else | |
4717 | ui_out_text (current_uiout, | |
4718 | _("Stopped due to shared library event (no " | |
4719 | "libraries added or removed)\n")); | |
4720 | } | |
4721 | ||
4722 | if (ui_out_is_mi_like_p (current_uiout)) | |
4723 | ui_out_field_string (current_uiout, "reason", | |
4724 | async_reason_lookup (EXEC_ASYNC_SOLIB_EVENT)); | |
4725 | ||
4726 | if (any_deleted) | |
4727 | { | |
4728 | struct cleanup *cleanup; | |
4729 | char *name; | |
4730 | int ix; | |
4731 | ||
4732 | ui_out_text (current_uiout, _(" Inferior unloaded ")); | |
4733 | cleanup = make_cleanup_ui_out_list_begin_end (current_uiout, | |
4734 | "removed"); | |
4735 | for (ix = 0; | |
4736 | VEC_iterate (char_ptr, current_program_space->deleted_solibs, | |
4737 | ix, name); | |
4738 | ++ix) | |
4739 | { | |
4740 | if (ix > 0) | |
4741 | ui_out_text (current_uiout, " "); | |
4742 | ui_out_field_string (current_uiout, "library", name); | |
4743 | ui_out_text (current_uiout, "\n"); | |
4744 | } | |
4745 | ||
4746 | do_cleanups (cleanup); | |
4747 | } | |
4748 | ||
4749 | if (any_added) | |
4750 | { | |
4751 | struct so_list *iter; | |
4752 | int ix; | |
4753 | struct cleanup *cleanup; | |
4754 | ||
4755 | ui_out_text (current_uiout, _(" Inferior loaded ")); | |
4756 | cleanup = make_cleanup_ui_out_list_begin_end (current_uiout, | |
4757 | "added"); | |
4758 | for (ix = 0; | |
4759 | VEC_iterate (so_list_ptr, current_program_space->added_solibs, | |
4760 | ix, iter); | |
4761 | ++ix) | |
4762 | { | |
4763 | if (ix > 0) | |
4764 | ui_out_text (current_uiout, " "); | |
4765 | ui_out_field_string (current_uiout, "library", iter->so_name); | |
4766 | ui_out_text (current_uiout, "\n"); | |
4767 | } | |
4768 | ||
4769 | do_cleanups (cleanup); | |
4770 | } | |
4771 | } | |
4772 | ||
e514a9d6 JM |
4773 | /* Print a message indicating what happened. This is called from |
4774 | normal_stop(). The input to this routine is the head of the bpstat | |
36dfb11c TT |
4775 | list - a list of the eventpoints that caused this stop. KIND is |
4776 | the target_waitkind for the stopping event. This | |
e514a9d6 JM |
4777 | routine calls the generic print routine for printing a message |
4778 | about reasons for stopping. This will print (for example) the | |
4779 | "Breakpoint n," part of the output. The return value of this | |
4780 | routine is one of: | |
c906108c | 4781 | |
4a64f543 | 4782 | PRINT_UNKNOWN: Means we printed nothing. |
917317f4 | 4783 | PRINT_SRC_AND_LOC: Means we printed something, and expect subsequent |
4a64f543 | 4784 | code to print the location. An example is |
c5aa993b JM |
4785 | "Breakpoint 1, " which should be followed by |
4786 | the location. | |
917317f4 | 4787 | PRINT_SRC_ONLY: Means we printed something, but there is no need |
c5aa993b JM |
4788 | to also print the location part of the message. |
4789 | An example is the catch/throw messages, which | |
4a64f543 | 4790 | don't require a location appended to the end. |
917317f4 | 4791 | PRINT_NOTHING: We have done some printing and we don't need any |
4a64f543 | 4792 | further info to be printed. */ |
c906108c | 4793 | |
917317f4 | 4794 | enum print_stop_action |
36dfb11c | 4795 | bpstat_print (bpstat bs, int kind) |
c906108c SS |
4796 | { |
4797 | int val; | |
c5aa993b | 4798 | |
c906108c | 4799 | /* Maybe another breakpoint in the chain caused us to stop. |
53a5351d JM |
4800 | (Currently all watchpoints go on the bpstat whether hit or not. |
4801 | That probably could (should) be changed, provided care is taken | |
c906108c | 4802 | with respect to bpstat_explains_signal). */ |
e514a9d6 JM |
4803 | for (; bs; bs = bs->next) |
4804 | { | |
4805 | val = print_bp_stop_message (bs); | |
4806 | if (val == PRINT_SRC_ONLY | |
4807 | || val == PRINT_SRC_AND_LOC | |
4808 | || val == PRINT_NOTHING) | |
4809 | return val; | |
4810 | } | |
c906108c | 4811 | |
36dfb11c TT |
4812 | /* If we had hit a shared library event breakpoint, |
4813 | print_bp_stop_message would print out this message. If we hit an | |
4814 | OS-level shared library event, do the same thing. */ | |
4815 | if (kind == TARGET_WAITKIND_LOADED) | |
4816 | { | |
edcc5120 | 4817 | print_solib_event (0); |
36dfb11c TT |
4818 | return PRINT_NOTHING; |
4819 | } | |
4820 | ||
e514a9d6 | 4821 | /* We reached the end of the chain, or we got a null BS to start |
4a64f543 | 4822 | with and nothing was printed. */ |
917317f4 | 4823 | return PRINT_UNKNOWN; |
c906108c SS |
4824 | } |
4825 | ||
c42bd95a DE |
4826 | /* Evaluate the expression EXP and return 1 if value is zero. |
4827 | This returns the inverse of the condition because it is called | |
4828 | from catch_errors which returns 0 if an exception happened, and if an | |
4829 | exception happens we want execution to stop. | |
4a64f543 | 4830 | The argument is a "struct expression *" that has been cast to a |
c42bd95a | 4831 | "void *" to make it pass through catch_errors. */ |
c906108c SS |
4832 | |
4833 | static int | |
4efb68b1 | 4834 | breakpoint_cond_eval (void *exp) |
c906108c | 4835 | { |
278cd55f | 4836 | struct value *mark = value_mark (); |
c5aa993b | 4837 | int i = !value_true (evaluate_expression ((struct expression *) exp)); |
cc59ec59 | 4838 | |
c906108c SS |
4839 | value_free_to_mark (mark); |
4840 | return i; | |
4841 | } | |
4842 | ||
5760d0ab | 4843 | /* Allocate a new bpstat. Link it to the FIFO list by BS_LINK_POINTER. */ |
c906108c SS |
4844 | |
4845 | static bpstat | |
5760d0ab | 4846 | bpstat_alloc (struct bp_location *bl, bpstat **bs_link_pointer) |
c906108c SS |
4847 | { |
4848 | bpstat bs; | |
4849 | ||
4850 | bs = (bpstat) xmalloc (sizeof (*bs)); | |
5760d0ab JK |
4851 | bs->next = NULL; |
4852 | **bs_link_pointer = bs; | |
4853 | *bs_link_pointer = &bs->next; | |
f431efe5 PA |
4854 | bs->breakpoint_at = bl->owner; |
4855 | bs->bp_location_at = bl; | |
4856 | incref_bp_location (bl); | |
c906108c SS |
4857 | /* If the condition is false, etc., don't do the commands. */ |
4858 | bs->commands = NULL; | |
4859 | bs->old_val = NULL; | |
4860 | bs->print_it = print_it_normal; | |
4861 | return bs; | |
4862 | } | |
4863 | \f | |
d983da9c DJ |
4864 | /* The target has stopped with waitstatus WS. Check if any hardware |
4865 | watchpoints have triggered, according to the target. */ | |
4866 | ||
4867 | int | |
4868 | watchpoints_triggered (struct target_waitstatus *ws) | |
4869 | { | |
d92524f1 | 4870 | int stopped_by_watchpoint = target_stopped_by_watchpoint (); |
d983da9c DJ |
4871 | CORE_ADDR addr; |
4872 | struct breakpoint *b; | |
4873 | ||
4874 | if (!stopped_by_watchpoint) | |
4875 | { | |
4876 | /* We were not stopped by a watchpoint. Mark all watchpoints | |
4877 | as not triggered. */ | |
4878 | ALL_BREAKPOINTS (b) | |
cc60f2e3 | 4879 | if (is_hardware_watchpoint (b)) |
3a5c3e22 PA |
4880 | { |
4881 | struct watchpoint *w = (struct watchpoint *) b; | |
4882 | ||
4883 | w->watchpoint_triggered = watch_triggered_no; | |
4884 | } | |
d983da9c DJ |
4885 | |
4886 | return 0; | |
4887 | } | |
4888 | ||
4889 | if (!target_stopped_data_address (¤t_target, &addr)) | |
4890 | { | |
4891 | /* We were stopped by a watchpoint, but we don't know where. | |
4892 | Mark all watchpoints as unknown. */ | |
4893 | ALL_BREAKPOINTS (b) | |
cc60f2e3 | 4894 | if (is_hardware_watchpoint (b)) |
3a5c3e22 PA |
4895 | { |
4896 | struct watchpoint *w = (struct watchpoint *) b; | |
4897 | ||
4898 | w->watchpoint_triggered = watch_triggered_unknown; | |
4899 | } | |
d983da9c | 4900 | |
3c4797ba | 4901 | return 1; |
d983da9c DJ |
4902 | } |
4903 | ||
4904 | /* The target could report the data address. Mark watchpoints | |
4905 | affected by this data address as triggered, and all others as not | |
4906 | triggered. */ | |
4907 | ||
4908 | ALL_BREAKPOINTS (b) | |
cc60f2e3 | 4909 | if (is_hardware_watchpoint (b)) |
d983da9c | 4910 | { |
3a5c3e22 | 4911 | struct watchpoint *w = (struct watchpoint *) b; |
a5606eee | 4912 | struct bp_location *loc; |
d983da9c | 4913 | |
3a5c3e22 | 4914 | w->watchpoint_triggered = watch_triggered_no; |
a5606eee | 4915 | for (loc = b->loc; loc; loc = loc->next) |
9c06b0b4 | 4916 | { |
3a5c3e22 | 4917 | if (is_masked_watchpoint (b)) |
9c06b0b4 | 4918 | { |
3a5c3e22 PA |
4919 | CORE_ADDR newaddr = addr & w->hw_wp_mask; |
4920 | CORE_ADDR start = loc->address & w->hw_wp_mask; | |
9c06b0b4 TJB |
4921 | |
4922 | if (newaddr == start) | |
4923 | { | |
3a5c3e22 | 4924 | w->watchpoint_triggered = watch_triggered_yes; |
9c06b0b4 TJB |
4925 | break; |
4926 | } | |
4927 | } | |
4928 | /* Exact match not required. Within range is sufficient. */ | |
4929 | else if (target_watchpoint_addr_within_range (¤t_target, | |
4930 | addr, loc->address, | |
4931 | loc->length)) | |
4932 | { | |
3a5c3e22 | 4933 | w->watchpoint_triggered = watch_triggered_yes; |
9c06b0b4 TJB |
4934 | break; |
4935 | } | |
4936 | } | |
d983da9c DJ |
4937 | } |
4938 | ||
4939 | return 1; | |
4940 | } | |
4941 | ||
c906108c SS |
4942 | /* Possible return values for watchpoint_check (this can't be an enum |
4943 | because of check_errors). */ | |
4944 | /* The watchpoint has been deleted. */ | |
4945 | #define WP_DELETED 1 | |
4946 | /* The value has changed. */ | |
4947 | #define WP_VALUE_CHANGED 2 | |
4948 | /* The value has not changed. */ | |
4949 | #define WP_VALUE_NOT_CHANGED 3 | |
60e1c644 PA |
4950 | /* Ignore this watchpoint, no matter if the value changed or not. */ |
4951 | #define WP_IGNORE 4 | |
c906108c SS |
4952 | |
4953 | #define BP_TEMPFLAG 1 | |
4954 | #define BP_HARDWAREFLAG 2 | |
4955 | ||
4a64f543 MS |
4956 | /* Evaluate watchpoint condition expression and check if its value |
4957 | changed. | |
553e4c11 JB |
4958 | |
4959 | P should be a pointer to struct bpstat, but is defined as a void * | |
4960 | in order for this function to be usable with catch_errors. */ | |
c906108c SS |
4961 | |
4962 | static int | |
4efb68b1 | 4963 | watchpoint_check (void *p) |
c906108c SS |
4964 | { |
4965 | bpstat bs = (bpstat) p; | |
3a5c3e22 | 4966 | struct watchpoint *b; |
c906108c SS |
4967 | struct frame_info *fr; |
4968 | int within_current_scope; | |
4969 | ||
f431efe5 | 4970 | /* BS is built from an existing struct breakpoint. */ |
2bdf28a0 | 4971 | gdb_assert (bs->breakpoint_at != NULL); |
3a5c3e22 | 4972 | b = (struct watchpoint *) bs->breakpoint_at; |
d0fb5eae | 4973 | |
f6bc2008 PA |
4974 | /* If this is a local watchpoint, we only want to check if the |
4975 | watchpoint frame is in scope if the current thread is the thread | |
4976 | that was used to create the watchpoint. */ | |
4977 | if (!watchpoint_in_thread_scope (b)) | |
60e1c644 | 4978 | return WP_IGNORE; |
f6bc2008 | 4979 | |
c906108c SS |
4980 | if (b->exp_valid_block == NULL) |
4981 | within_current_scope = 1; | |
4982 | else | |
4983 | { | |
edb3359d DJ |
4984 | struct frame_info *frame = get_current_frame (); |
4985 | struct gdbarch *frame_arch = get_frame_arch (frame); | |
4986 | CORE_ADDR frame_pc = get_frame_pc (frame); | |
4987 | ||
4a64f543 MS |
4988 | /* in_function_epilogue_p() returns a non-zero value if we're |
4989 | still in the function but the stack frame has already been | |
4990 | invalidated. Since we can't rely on the values of local | |
4991 | variables after the stack has been destroyed, we are treating | |
4992 | the watchpoint in that state as `not changed' without further | |
4993 | checking. Don't mark watchpoints as changed if the current | |
4994 | frame is in an epilogue - even if they are in some other | |
4995 | frame, our view of the stack is likely to be wrong and | |
4996 | frame_find_by_id could error out. */ | |
a0f49112 | 4997 | if (gdbarch_in_function_epilogue_p (frame_arch, frame_pc)) |
60e1c644 | 4998 | return WP_IGNORE; |
a0f49112 | 4999 | |
101dcfbe | 5000 | fr = frame_find_by_id (b->watchpoint_frame); |
c906108c | 5001 | within_current_scope = (fr != NULL); |
69fbadd5 DJ |
5002 | |
5003 | /* If we've gotten confused in the unwinder, we might have | |
5004 | returned a frame that can't describe this variable. */ | |
edb3359d DJ |
5005 | if (within_current_scope) |
5006 | { | |
5007 | struct symbol *function; | |
5008 | ||
5009 | function = get_frame_function (fr); | |
5010 | if (function == NULL | |
5011 | || !contained_in (b->exp_valid_block, | |
5012 | SYMBOL_BLOCK_VALUE (function))) | |
5013 | within_current_scope = 0; | |
5014 | } | |
69fbadd5 | 5015 | |
edb3359d | 5016 | if (within_current_scope) |
c906108c SS |
5017 | /* If we end up stopping, the current frame will get selected |
5018 | in normal_stop. So this call to select_frame won't affect | |
5019 | the user. */ | |
0f7d239c | 5020 | select_frame (fr); |
c906108c | 5021 | } |
c5aa993b | 5022 | |
c906108c SS |
5023 | if (within_current_scope) |
5024 | { | |
4a64f543 MS |
5025 | /* We use value_{,free_to_}mark because it could be a *long* |
5026 | time before we return to the command level and call | |
5027 | free_all_values. We can't call free_all_values because we | |
5028 | might be in the middle of evaluating a function call. */ | |
c906108c | 5029 | |
0cf6dd15 | 5030 | int pc = 0; |
9c06b0b4 | 5031 | struct value *mark; |
fa4727a6 DJ |
5032 | struct value *new_val; |
5033 | ||
3a5c3e22 | 5034 | if (is_masked_watchpoint (&b->base)) |
9c06b0b4 TJB |
5035 | /* Since we don't know the exact trigger address (from |
5036 | stopped_data_address), just tell the user we've triggered | |
5037 | a mask watchpoint. */ | |
5038 | return WP_VALUE_CHANGED; | |
5039 | ||
5040 | mark = value_mark (); | |
3a1115a0 | 5041 | fetch_subexp_value (b->exp, &pc, &new_val, NULL, NULL, 0); |
218d2fc6 | 5042 | |
4a64f543 MS |
5043 | /* We use value_equal_contents instead of value_equal because |
5044 | the latter coerces an array to a pointer, thus comparing just | |
5045 | the address of the array instead of its contents. This is | |
5046 | not what we want. */ | |
fa4727a6 | 5047 | if ((b->val != NULL) != (new_val != NULL) |
218d2fc6 | 5048 | || (b->val != NULL && !value_equal_contents (b->val, new_val))) |
c906108c | 5049 | { |
fa4727a6 DJ |
5050 | if (new_val != NULL) |
5051 | { | |
5052 | release_value (new_val); | |
5053 | value_free_to_mark (mark); | |
5054 | } | |
c906108c SS |
5055 | bs->old_val = b->val; |
5056 | b->val = new_val; | |
fa4727a6 | 5057 | b->val_valid = 1; |
c906108c SS |
5058 | return WP_VALUE_CHANGED; |
5059 | } | |
5060 | else | |
5061 | { | |
60e1c644 | 5062 | /* Nothing changed. */ |
c906108c | 5063 | value_free_to_mark (mark); |
c906108c SS |
5064 | return WP_VALUE_NOT_CHANGED; |
5065 | } | |
5066 | } | |
5067 | else | |
5068 | { | |
79a45e25 PA |
5069 | struct ui_out *uiout = current_uiout; |
5070 | ||
c906108c | 5071 | /* This seems like the only logical thing to do because |
c5aa993b JM |
5072 | if we temporarily ignored the watchpoint, then when |
5073 | we reenter the block in which it is valid it contains | |
5074 | garbage (in the case of a function, it may have two | |
5075 | garbage values, one before and one after the prologue). | |
5076 | So we can't even detect the first assignment to it and | |
5077 | watch after that (since the garbage may or may not equal | |
5078 | the first value assigned). */ | |
348d480f PA |
5079 | /* We print all the stop information in |
5080 | breakpoint_ops->print_it, but in this case, by the time we | |
5081 | call breakpoint_ops->print_it this bp will be deleted | |
5082 | already. So we have no choice but print the information | |
5083 | here. */ | |
9dc5e2a9 | 5084 | if (ui_out_is_mi_like_p (uiout)) |
034dad6f BR |
5085 | ui_out_field_string |
5086 | (uiout, "reason", async_reason_lookup (EXEC_ASYNC_WATCHPOINT_SCOPE)); | |
8b93c638 | 5087 | ui_out_text (uiout, "\nWatchpoint "); |
3a5c3e22 | 5088 | ui_out_field_int (uiout, "wpnum", b->base.number); |
3e43a32a MS |
5089 | ui_out_text (uiout, |
5090 | " deleted because the program has left the block in\n\ | |
8b93c638 | 5091 | which its expression is valid.\n"); |
4ce44c66 | 5092 | |
cdac0397 | 5093 | /* Make sure the watchpoint's commands aren't executed. */ |
3a5c3e22 | 5094 | decref_counted_command_line (&b->base.commands); |
d0fb5eae | 5095 | watchpoint_del_at_next_stop (b); |
c906108c SS |
5096 | |
5097 | return WP_DELETED; | |
5098 | } | |
5099 | } | |
5100 | ||
18a18393 | 5101 | /* Return true if it looks like target has stopped due to hitting |
348d480f PA |
5102 | breakpoint location BL. This function does not check if we should |
5103 | stop, only if BL explains the stop. */ | |
5104 | ||
18a18393 | 5105 | static int |
6c95b8df | 5106 | bpstat_check_location (const struct bp_location *bl, |
09ac7c10 TT |
5107 | struct address_space *aspace, CORE_ADDR bp_addr, |
5108 | const struct target_waitstatus *ws) | |
18a18393 VP |
5109 | { |
5110 | struct breakpoint *b = bl->owner; | |
5111 | ||
348d480f | 5112 | /* BL is from an existing breakpoint. */ |
2bdf28a0 JK |
5113 | gdb_assert (b != NULL); |
5114 | ||
09ac7c10 | 5115 | return b->ops->breakpoint_hit (bl, aspace, bp_addr, ws); |
18a18393 VP |
5116 | } |
5117 | ||
3a5c3e22 PA |
5118 | /* Determine if the watched values have actually changed, and we |
5119 | should stop. If not, set BS->stop to 0. */ | |
5120 | ||
18a18393 VP |
5121 | static void |
5122 | bpstat_check_watchpoint (bpstat bs) | |
5123 | { | |
2bdf28a0 | 5124 | const struct bp_location *bl; |
3a5c3e22 | 5125 | struct watchpoint *b; |
2bdf28a0 JK |
5126 | |
5127 | /* BS is built for existing struct breakpoint. */ | |
f431efe5 | 5128 | bl = bs->bp_location_at; |
2bdf28a0 | 5129 | gdb_assert (bl != NULL); |
3a5c3e22 | 5130 | b = (struct watchpoint *) bs->breakpoint_at; |
2bdf28a0 | 5131 | gdb_assert (b != NULL); |
18a18393 | 5132 | |
18a18393 | 5133 | { |
18a18393 VP |
5134 | int must_check_value = 0; |
5135 | ||
3a5c3e22 | 5136 | if (b->base.type == bp_watchpoint) |
18a18393 VP |
5137 | /* For a software watchpoint, we must always check the |
5138 | watched value. */ | |
5139 | must_check_value = 1; | |
5140 | else if (b->watchpoint_triggered == watch_triggered_yes) | |
5141 | /* We have a hardware watchpoint (read, write, or access) | |
5142 | and the target earlier reported an address watched by | |
5143 | this watchpoint. */ | |
5144 | must_check_value = 1; | |
5145 | else if (b->watchpoint_triggered == watch_triggered_unknown | |
3a5c3e22 | 5146 | && b->base.type == bp_hardware_watchpoint) |
18a18393 VP |
5147 | /* We were stopped by a hardware watchpoint, but the target could |
5148 | not report the data address. We must check the watchpoint's | |
5149 | value. Access and read watchpoints are out of luck; without | |
5150 | a data address, we can't figure it out. */ | |
5151 | must_check_value = 1; | |
3a5c3e22 | 5152 | |
18a18393 VP |
5153 | if (must_check_value) |
5154 | { | |
3e43a32a MS |
5155 | char *message |
5156 | = xstrprintf ("Error evaluating expression for watchpoint %d\n", | |
3a5c3e22 | 5157 | b->base.number); |
18a18393 VP |
5158 | struct cleanup *cleanups = make_cleanup (xfree, message); |
5159 | int e = catch_errors (watchpoint_check, bs, message, | |
5160 | RETURN_MASK_ALL); | |
5161 | do_cleanups (cleanups); | |
5162 | switch (e) | |
5163 | { | |
5164 | case WP_DELETED: | |
5165 | /* We've already printed what needs to be printed. */ | |
5166 | bs->print_it = print_it_done; | |
5167 | /* Stop. */ | |
5168 | break; | |
60e1c644 PA |
5169 | case WP_IGNORE: |
5170 | bs->print_it = print_it_noop; | |
5171 | bs->stop = 0; | |
5172 | break; | |
18a18393 | 5173 | case WP_VALUE_CHANGED: |
3a5c3e22 | 5174 | if (b->base.type == bp_read_watchpoint) |
18a18393 | 5175 | { |
85d721b8 PA |
5176 | /* There are two cases to consider here: |
5177 | ||
4a64f543 | 5178 | 1. We're watching the triggered memory for reads. |
85d721b8 PA |
5179 | In that case, trust the target, and always report |
5180 | the watchpoint hit to the user. Even though | |
5181 | reads don't cause value changes, the value may | |
5182 | have changed since the last time it was read, and | |
5183 | since we're not trapping writes, we will not see | |
5184 | those, and as such we should ignore our notion of | |
5185 | old value. | |
5186 | ||
4a64f543 | 5187 | 2. We're watching the triggered memory for both |
85d721b8 PA |
5188 | reads and writes. There are two ways this may |
5189 | happen: | |
5190 | ||
4a64f543 | 5191 | 2.1. This is a target that can't break on data |
85d721b8 PA |
5192 | reads only, but can break on accesses (reads or |
5193 | writes), such as e.g., x86. We detect this case | |
5194 | at the time we try to insert read watchpoints. | |
5195 | ||
4a64f543 | 5196 | 2.2. Otherwise, the target supports read |
85d721b8 PA |
5197 | watchpoints, but, the user set an access or write |
5198 | watchpoint watching the same memory as this read | |
5199 | watchpoint. | |
5200 | ||
5201 | If we're watching memory writes as well as reads, | |
5202 | ignore watchpoint hits when we find that the | |
5203 | value hasn't changed, as reads don't cause | |
5204 | changes. This still gives false positives when | |
5205 | the program writes the same value to memory as | |
5206 | what there was already in memory (we will confuse | |
5207 | it for a read), but it's much better than | |
5208 | nothing. */ | |
5209 | ||
5210 | int other_write_watchpoint = 0; | |
5211 | ||
5212 | if (bl->watchpoint_type == hw_read) | |
5213 | { | |
5214 | struct breakpoint *other_b; | |
5215 | ||
5216 | ALL_BREAKPOINTS (other_b) | |
3a5c3e22 PA |
5217 | if (other_b->type == bp_hardware_watchpoint |
5218 | || other_b->type == bp_access_watchpoint) | |
85d721b8 | 5219 | { |
3a5c3e22 PA |
5220 | struct watchpoint *other_w = |
5221 | (struct watchpoint *) other_b; | |
5222 | ||
5223 | if (other_w->watchpoint_triggered | |
5224 | == watch_triggered_yes) | |
5225 | { | |
5226 | other_write_watchpoint = 1; | |
5227 | break; | |
5228 | } | |
85d721b8 PA |
5229 | } |
5230 | } | |
5231 | ||
5232 | if (other_write_watchpoint | |
5233 | || bl->watchpoint_type == hw_access) | |
5234 | { | |
5235 | /* We're watching the same memory for writes, | |
5236 | and the value changed since the last time we | |
5237 | updated it, so this trap must be for a write. | |
5238 | Ignore it. */ | |
5239 | bs->print_it = print_it_noop; | |
5240 | bs->stop = 0; | |
5241 | } | |
18a18393 VP |
5242 | } |
5243 | break; | |
5244 | case WP_VALUE_NOT_CHANGED: | |
3a5c3e22 PA |
5245 | if (b->base.type == bp_hardware_watchpoint |
5246 | || b->base.type == bp_watchpoint) | |
18a18393 VP |
5247 | { |
5248 | /* Don't stop: write watchpoints shouldn't fire if | |
5249 | the value hasn't changed. */ | |
5250 | bs->print_it = print_it_noop; | |
5251 | bs->stop = 0; | |
5252 | } | |
5253 | /* Stop. */ | |
5254 | break; | |
5255 | default: | |
5256 | /* Can't happen. */ | |
5257 | case 0: | |
5258 | /* Error from catch_errors. */ | |
3a5c3e22 | 5259 | printf_filtered (_("Watchpoint %d deleted.\n"), b->base.number); |
d0fb5eae | 5260 | watchpoint_del_at_next_stop (b); |
18a18393 VP |
5261 | /* We've already printed what needs to be printed. */ |
5262 | bs->print_it = print_it_done; | |
5263 | break; | |
5264 | } | |
5265 | } | |
5266 | else /* must_check_value == 0 */ | |
5267 | { | |
5268 | /* This is a case where some watchpoint(s) triggered, but | |
5269 | not at the address of this watchpoint, or else no | |
5270 | watchpoint triggered after all. So don't print | |
5271 | anything for this watchpoint. */ | |
5272 | bs->print_it = print_it_noop; | |
5273 | bs->stop = 0; | |
5274 | } | |
5275 | } | |
5276 | } | |
5277 | ||
7d4df6a4 DE |
5278 | /* For breakpoints that are currently marked as telling gdb to stop, |
5279 | check conditions (condition proper, frame, thread and ignore count) | |
18a18393 VP |
5280 | of breakpoint referred to by BS. If we should not stop for this |
5281 | breakpoint, set BS->stop to 0. */ | |
f431efe5 | 5282 | |
18a18393 VP |
5283 | static void |
5284 | bpstat_check_breakpoint_conditions (bpstat bs, ptid_t ptid) | |
5285 | { | |
2bdf28a0 JK |
5286 | const struct bp_location *bl; |
5287 | struct breakpoint *b; | |
7d4df6a4 DE |
5288 | int value_is_zero = 0; |
5289 | struct expression *cond; | |
5290 | ||
5291 | gdb_assert (bs->stop); | |
2bdf28a0 JK |
5292 | |
5293 | /* BS is built for existing struct breakpoint. */ | |
f431efe5 | 5294 | bl = bs->bp_location_at; |
2bdf28a0 | 5295 | gdb_assert (bl != NULL); |
f431efe5 | 5296 | b = bs->breakpoint_at; |
2bdf28a0 | 5297 | gdb_assert (b != NULL); |
18a18393 | 5298 | |
b775012e LM |
5299 | /* Even if the target evaluated the condition on its end and notified GDB, we |
5300 | need to do so again since GDB does not know if we stopped due to a | |
5301 | breakpoint or a single step breakpoint. */ | |
5302 | ||
18a18393 | 5303 | if (frame_id_p (b->frame_id) |
edb3359d | 5304 | && !frame_id_eq (b->frame_id, get_stack_frame_id (get_current_frame ()))) |
18a18393 | 5305 | { |
7d4df6a4 DE |
5306 | bs->stop = 0; |
5307 | return; | |
5308 | } | |
60e1c644 | 5309 | |
12ab52e9 PA |
5310 | /* If this is a thread/task-specific breakpoint, don't waste cpu |
5311 | evaluating the condition if this isn't the specified | |
5312 | thread/task. */ | |
5313 | if ((b->thread != -1 && b->thread != pid_to_thread_id (ptid)) | |
5314 | || (b->task != 0 && b->task != ada_get_task_number (ptid))) | |
5315 | ||
6c1b0f7b DE |
5316 | { |
5317 | bs->stop = 0; | |
5318 | return; | |
5319 | } | |
5320 | ||
6dddc817 DE |
5321 | /* Evaluate extension language breakpoints that have a "stop" method |
5322 | implemented. */ | |
5323 | bs->stop = breakpoint_ext_lang_cond_says_stop (b); | |
7371cf6d | 5324 | |
7d4df6a4 DE |
5325 | if (is_watchpoint (b)) |
5326 | { | |
5327 | struct watchpoint *w = (struct watchpoint *) b; | |
3a5c3e22 | 5328 | |
7d4df6a4 DE |
5329 | cond = w->cond_exp; |
5330 | } | |
5331 | else | |
5332 | cond = bl->cond; | |
60e1c644 | 5333 | |
7d4df6a4 DE |
5334 | if (cond && b->disposition != disp_del_at_next_stop) |
5335 | { | |
5336 | int within_current_scope = 1; | |
5337 | struct watchpoint * w; | |
60e1c644 | 5338 | |
7d4df6a4 DE |
5339 | /* We use value_mark and value_free_to_mark because it could |
5340 | be a long time before we return to the command level and | |
5341 | call free_all_values. We can't call free_all_values | |
5342 | because we might be in the middle of evaluating a | |
5343 | function call. */ | |
5344 | struct value *mark = value_mark (); | |
5345 | ||
5346 | if (is_watchpoint (b)) | |
5347 | w = (struct watchpoint *) b; | |
5348 | else | |
5349 | w = NULL; | |
5350 | ||
5351 | /* Need to select the frame, with all that implies so that | |
5352 | the conditions will have the right context. Because we | |
5353 | use the frame, we will not see an inlined function's | |
5354 | variables when we arrive at a breakpoint at the start | |
5355 | of the inlined function; the current frame will be the | |
5356 | call site. */ | |
5357 | if (w == NULL || w->cond_exp_valid_block == NULL) | |
5358 | select_frame (get_current_frame ()); | |
5359 | else | |
18a18393 | 5360 | { |
7d4df6a4 DE |
5361 | struct frame_info *frame; |
5362 | ||
5363 | /* For local watchpoint expressions, which particular | |
5364 | instance of a local is being watched matters, so we | |
5365 | keep track of the frame to evaluate the expression | |
5366 | in. To evaluate the condition however, it doesn't | |
5367 | really matter which instantiation of the function | |
5368 | where the condition makes sense triggers the | |
5369 | watchpoint. This allows an expression like "watch | |
5370 | global if q > 10" set in `func', catch writes to | |
5371 | global on all threads that call `func', or catch | |
5372 | writes on all recursive calls of `func' by a single | |
5373 | thread. We simply always evaluate the condition in | |
5374 | the innermost frame that's executing where it makes | |
5375 | sense to evaluate the condition. It seems | |
5376 | intuitive. */ | |
5377 | frame = block_innermost_frame (w->cond_exp_valid_block); | |
5378 | if (frame != NULL) | |
5379 | select_frame (frame); | |
5380 | else | |
5381 | within_current_scope = 0; | |
18a18393 | 5382 | } |
7d4df6a4 DE |
5383 | if (within_current_scope) |
5384 | value_is_zero | |
5385 | = catch_errors (breakpoint_cond_eval, cond, | |
5386 | "Error in testing breakpoint condition:\n", | |
5387 | RETURN_MASK_ALL); | |
5388 | else | |
18a18393 | 5389 | { |
7d4df6a4 DE |
5390 | warning (_("Watchpoint condition cannot be tested " |
5391 | "in the current scope")); | |
5392 | /* If we failed to set the right context for this | |
5393 | watchpoint, unconditionally report it. */ | |
5394 | value_is_zero = 0; | |
18a18393 | 5395 | } |
7d4df6a4 DE |
5396 | /* FIXME-someday, should give breakpoint #. */ |
5397 | value_free_to_mark (mark); | |
18a18393 | 5398 | } |
7d4df6a4 DE |
5399 | |
5400 | if (cond && value_is_zero) | |
5401 | { | |
5402 | bs->stop = 0; | |
5403 | } | |
7d4df6a4 DE |
5404 | else if (b->ignore_count > 0) |
5405 | { | |
5406 | b->ignore_count--; | |
5407 | bs->stop = 0; | |
5408 | /* Increase the hit count even though we don't stop. */ | |
5409 | ++(b->hit_count); | |
5410 | observer_notify_breakpoint_modified (b); | |
5411 | } | |
18a18393 VP |
5412 | } |
5413 | ||
5414 | ||
9709f61c | 5415 | /* Get a bpstat associated with having just stopped at address |
d983da9c | 5416 | BP_ADDR in thread PTID. |
c906108c | 5417 | |
d983da9c | 5418 | Determine whether we stopped at a breakpoint, etc, or whether we |
4a64f543 MS |
5419 | don't understand this stop. Result is a chain of bpstat's such |
5420 | that: | |
c906108c | 5421 | |
c5aa993b | 5422 | if we don't understand the stop, the result is a null pointer. |
c906108c | 5423 | |
c5aa993b | 5424 | if we understand why we stopped, the result is not null. |
c906108c | 5425 | |
c5aa993b JM |
5426 | Each element of the chain refers to a particular breakpoint or |
5427 | watchpoint at which we have stopped. (We may have stopped for | |
5428 | several reasons concurrently.) | |
c906108c | 5429 | |
c5aa993b JM |
5430 | Each element of the chain has valid next, breakpoint_at, |
5431 | commands, FIXME??? fields. */ | |
c906108c SS |
5432 | |
5433 | bpstat | |
6c95b8df | 5434 | bpstat_stop_status (struct address_space *aspace, |
09ac7c10 TT |
5435 | CORE_ADDR bp_addr, ptid_t ptid, |
5436 | const struct target_waitstatus *ws) | |
c906108c | 5437 | { |
0d381245 | 5438 | struct breakpoint *b = NULL; |
afe38095 | 5439 | struct bp_location *bl; |
20874c92 | 5440 | struct bp_location *loc; |
5760d0ab JK |
5441 | /* First item of allocated bpstat's. */ |
5442 | bpstat bs_head = NULL, *bs_link = &bs_head; | |
c906108c | 5443 | /* Pointer to the last thing in the chain currently. */ |
5760d0ab | 5444 | bpstat bs; |
20874c92 | 5445 | int ix; |
429374b8 | 5446 | int need_remove_insert; |
f431efe5 | 5447 | int removed_any; |
c906108c | 5448 | |
f431efe5 PA |
5449 | /* First, build the bpstat chain with locations that explain a |
5450 | target stop, while being careful to not set the target running, | |
5451 | as that may invalidate locations (in particular watchpoint | |
5452 | locations are recreated). Resuming will happen here with | |
5453 | breakpoint conditions or watchpoint expressions that include | |
5454 | inferior function calls. */ | |
c5aa993b | 5455 | |
429374b8 JK |
5456 | ALL_BREAKPOINTS (b) |
5457 | { | |
5458 | if (!breakpoint_enabled (b) && b->enable_state != bp_permanent) | |
5459 | continue; | |
a5606eee | 5460 | |
429374b8 JK |
5461 | for (bl = b->loc; bl != NULL; bl = bl->next) |
5462 | { | |
4a64f543 MS |
5463 | /* For hardware watchpoints, we look only at the first |
5464 | location. The watchpoint_check function will work on the | |
5465 | entire expression, not the individual locations. For | |
5466 | read watchpoints, the watchpoints_triggered function has | |
5467 | checked all locations already. */ | |
429374b8 JK |
5468 | if (b->type == bp_hardware_watchpoint && bl != b->loc) |
5469 | break; | |
18a18393 | 5470 | |
f6592439 | 5471 | if (!bl->enabled || bl->shlib_disabled) |
429374b8 | 5472 | continue; |
c5aa993b | 5473 | |
09ac7c10 | 5474 | if (!bpstat_check_location (bl, aspace, bp_addr, ws)) |
429374b8 | 5475 | continue; |
c5aa993b | 5476 | |
4a64f543 MS |
5477 | /* Come here if it's a watchpoint, or if the break address |
5478 | matches. */ | |
c5aa993b | 5479 | |
4a64f543 MS |
5480 | bs = bpstat_alloc (bl, &bs_link); /* Alloc a bpstat to |
5481 | explain stop. */ | |
c5aa993b | 5482 | |
f431efe5 PA |
5483 | /* Assume we stop. Should we find a watchpoint that is not |
5484 | actually triggered, or if the condition of the breakpoint | |
5485 | evaluates as false, we'll reset 'stop' to 0. */ | |
429374b8 JK |
5486 | bs->stop = 1; |
5487 | bs->print = 1; | |
d983da9c | 5488 | |
f431efe5 PA |
5489 | /* If this is a scope breakpoint, mark the associated |
5490 | watchpoint as triggered so that we will handle the | |
5491 | out-of-scope event. We'll get to the watchpoint next | |
5492 | iteration. */ | |
d0fb5eae | 5493 | if (b->type == bp_watchpoint_scope && b->related_breakpoint != b) |
3a5c3e22 PA |
5494 | { |
5495 | struct watchpoint *w = (struct watchpoint *) b->related_breakpoint; | |
5496 | ||
5497 | w->watchpoint_triggered = watch_triggered_yes; | |
5498 | } | |
f431efe5 PA |
5499 | } |
5500 | } | |
5501 | ||
5502 | for (ix = 0; VEC_iterate (bp_location_p, moribund_locations, ix, loc); ++ix) | |
5503 | { | |
f1310107 | 5504 | if (breakpoint_location_address_match (loc, aspace, bp_addr)) |
f431efe5 | 5505 | { |
5760d0ab | 5506 | bs = bpstat_alloc (loc, &bs_link); |
f431efe5 PA |
5507 | /* For hits of moribund locations, we should just proceed. */ |
5508 | bs->stop = 0; | |
5509 | bs->print = 0; | |
5510 | bs->print_it = print_it_noop; | |
5511 | } | |
5512 | } | |
5513 | ||
edcc5120 TT |
5514 | /* A bit of special processing for shlib breakpoints. We need to |
5515 | process solib loading here, so that the lists of loaded and | |
5516 | unloaded libraries are correct before we handle "catch load" and | |
5517 | "catch unload". */ | |
5518 | for (bs = bs_head; bs != NULL; bs = bs->next) | |
5519 | { | |
5d268276 | 5520 | if (bs->breakpoint_at && bs->breakpoint_at->type == bp_shlib_event) |
edcc5120 TT |
5521 | { |
5522 | handle_solib_event (); | |
5523 | break; | |
5524 | } | |
5525 | } | |
5526 | ||
f431efe5 PA |
5527 | /* Now go through the locations that caused the target to stop, and |
5528 | check whether we're interested in reporting this stop to higher | |
5529 | layers, or whether we should resume the target transparently. */ | |
5530 | ||
5531 | removed_any = 0; | |
5532 | ||
5760d0ab | 5533 | for (bs = bs_head; bs != NULL; bs = bs->next) |
f431efe5 PA |
5534 | { |
5535 | if (!bs->stop) | |
5536 | continue; | |
5537 | ||
f431efe5 | 5538 | b = bs->breakpoint_at; |
348d480f PA |
5539 | b->ops->check_status (bs); |
5540 | if (bs->stop) | |
28010a5d | 5541 | { |
348d480f | 5542 | bpstat_check_breakpoint_conditions (bs, ptid); |
f431efe5 | 5543 | |
429374b8 JK |
5544 | if (bs->stop) |
5545 | { | |
5546 | ++(b->hit_count); | |
8d3788bd | 5547 | observer_notify_breakpoint_modified (b); |
c906108c | 5548 | |
4a64f543 | 5549 | /* We will stop here. */ |
429374b8 JK |
5550 | if (b->disposition == disp_disable) |
5551 | { | |
816338b5 SS |
5552 | --(b->enable_count); |
5553 | if (b->enable_count <= 0 | |
5554 | && b->enable_state != bp_permanent) | |
429374b8 | 5555 | b->enable_state = bp_disabled; |
f431efe5 | 5556 | removed_any = 1; |
429374b8 JK |
5557 | } |
5558 | if (b->silent) | |
5559 | bs->print = 0; | |
5560 | bs->commands = b->commands; | |
9add0f1b | 5561 | incref_counted_command_line (bs->commands); |
abf85f46 JK |
5562 | if (command_line_is_silent (bs->commands |
5563 | ? bs->commands->commands : NULL)) | |
5564 | bs->print = 0; | |
9d6e6e84 HZ |
5565 | |
5566 | b->ops->after_condition_true (bs); | |
429374b8 JK |
5567 | } |
5568 | ||
348d480f | 5569 | } |
a9b3a50f PA |
5570 | |
5571 | /* Print nothing for this entry if we don't stop or don't | |
5572 | print. */ | |
5573 | if (!bs->stop || !bs->print) | |
5574 | bs->print_it = print_it_noop; | |
429374b8 | 5575 | } |
876fa593 | 5576 | |
d983da9c DJ |
5577 | /* If we aren't stopping, the value of some hardware watchpoint may |
5578 | not have changed, but the intermediate memory locations we are | |
5579 | watching may have. Don't bother if we're stopping; this will get | |
5580 | done later. */ | |
d832cb68 | 5581 | need_remove_insert = 0; |
5760d0ab JK |
5582 | if (! bpstat_causes_stop (bs_head)) |
5583 | for (bs = bs_head; bs != NULL; bs = bs->next) | |
d983da9c | 5584 | if (!bs->stop |
f431efe5 PA |
5585 | && bs->breakpoint_at |
5586 | && is_hardware_watchpoint (bs->breakpoint_at)) | |
d983da9c | 5587 | { |
3a5c3e22 PA |
5588 | struct watchpoint *w = (struct watchpoint *) bs->breakpoint_at; |
5589 | ||
5590 | update_watchpoint (w, 0 /* don't reparse. */); | |
d832cb68 | 5591 | need_remove_insert = 1; |
d983da9c DJ |
5592 | } |
5593 | ||
d832cb68 | 5594 | if (need_remove_insert) |
2d134ed3 | 5595 | update_global_location_list (1); |
f431efe5 PA |
5596 | else if (removed_any) |
5597 | update_global_location_list (0); | |
d832cb68 | 5598 | |
5760d0ab | 5599 | return bs_head; |
c906108c | 5600 | } |
628fe4e4 JK |
5601 | |
5602 | static void | |
5603 | handle_jit_event (void) | |
5604 | { | |
5605 | struct frame_info *frame; | |
5606 | struct gdbarch *gdbarch; | |
5607 | ||
5608 | /* Switch terminal for any messages produced by | |
5609 | breakpoint_re_set. */ | |
5610 | target_terminal_ours_for_output (); | |
5611 | ||
5612 | frame = get_current_frame (); | |
5613 | gdbarch = get_frame_arch (frame); | |
5614 | ||
5615 | jit_event_handler (gdbarch); | |
5616 | ||
5617 | target_terminal_inferior (); | |
5618 | } | |
5619 | ||
5620 | /* Prepare WHAT final decision for infrun. */ | |
5621 | ||
5622 | /* Decide what infrun needs to do with this bpstat. */ | |
5623 | ||
c906108c | 5624 | struct bpstat_what |
0e30163f | 5625 | bpstat_what (bpstat bs_head) |
c906108c | 5626 | { |
c906108c | 5627 | struct bpstat_what retval; |
628fe4e4 | 5628 | int jit_event = 0; |
0e30163f | 5629 | bpstat bs; |
c906108c | 5630 | |
628fe4e4 | 5631 | retval.main_action = BPSTAT_WHAT_KEEP_CHECKING; |
aa7d318d | 5632 | retval.call_dummy = STOP_NONE; |
186c406b | 5633 | retval.is_longjmp = 0; |
628fe4e4 | 5634 | |
0e30163f | 5635 | for (bs = bs_head; bs != NULL; bs = bs->next) |
c906108c | 5636 | { |
628fe4e4 JK |
5637 | /* Extract this BS's action. After processing each BS, we check |
5638 | if its action overrides all we've seem so far. */ | |
5639 | enum bpstat_what_main_action this_action = BPSTAT_WHAT_KEEP_CHECKING; | |
5640 | enum bptype bptype; | |
5641 | ||
c906108c | 5642 | if (bs->breakpoint_at == NULL) |
628fe4e4 JK |
5643 | { |
5644 | /* I suspect this can happen if it was a momentary | |
5645 | breakpoint which has since been deleted. */ | |
5646 | bptype = bp_none; | |
5647 | } | |
20874c92 | 5648 | else |
f431efe5 | 5649 | bptype = bs->breakpoint_at->type; |
628fe4e4 JK |
5650 | |
5651 | switch (bptype) | |
c906108c SS |
5652 | { |
5653 | case bp_none: | |
628fe4e4 | 5654 | break; |
c906108c SS |
5655 | case bp_breakpoint: |
5656 | case bp_hardware_breakpoint: | |
5657 | case bp_until: | |
5658 | case bp_finish: | |
a9b3a50f | 5659 | case bp_shlib_event: |
c906108c SS |
5660 | if (bs->stop) |
5661 | { | |
5662 | if (bs->print) | |
628fe4e4 | 5663 | this_action = BPSTAT_WHAT_STOP_NOISY; |
c906108c | 5664 | else |
628fe4e4 | 5665 | this_action = BPSTAT_WHAT_STOP_SILENT; |
c906108c SS |
5666 | } |
5667 | else | |
628fe4e4 | 5668 | this_action = BPSTAT_WHAT_SINGLE; |
c906108c SS |
5669 | break; |
5670 | case bp_watchpoint: | |
5671 | case bp_hardware_watchpoint: | |
5672 | case bp_read_watchpoint: | |
5673 | case bp_access_watchpoint: | |
5674 | if (bs->stop) | |
5675 | { | |
5676 | if (bs->print) | |
628fe4e4 | 5677 | this_action = BPSTAT_WHAT_STOP_NOISY; |
c906108c | 5678 | else |
628fe4e4 | 5679 | this_action = BPSTAT_WHAT_STOP_SILENT; |
c906108c SS |
5680 | } |
5681 | else | |
628fe4e4 JK |
5682 | { |
5683 | /* There was a watchpoint, but we're not stopping. | |
5684 | This requires no further action. */ | |
5685 | } | |
c906108c SS |
5686 | break; |
5687 | case bp_longjmp: | |
e2e4d78b | 5688 | case bp_longjmp_call_dummy: |
186c406b | 5689 | case bp_exception: |
628fe4e4 | 5690 | this_action = BPSTAT_WHAT_SET_LONGJMP_RESUME; |
e2e4d78b | 5691 | retval.is_longjmp = bptype != bp_exception; |
c906108c SS |
5692 | break; |
5693 | case bp_longjmp_resume: | |
186c406b | 5694 | case bp_exception_resume: |
628fe4e4 | 5695 | this_action = BPSTAT_WHAT_CLEAR_LONGJMP_RESUME; |
186c406b | 5696 | retval.is_longjmp = bptype == bp_longjmp_resume; |
c906108c SS |
5697 | break; |
5698 | case bp_step_resume: | |
5699 | if (bs->stop) | |
628fe4e4 JK |
5700 | this_action = BPSTAT_WHAT_STEP_RESUME; |
5701 | else | |
c906108c | 5702 | { |
628fe4e4 JK |
5703 | /* It is for the wrong frame. */ |
5704 | this_action = BPSTAT_WHAT_SINGLE; | |
c906108c | 5705 | } |
c906108c | 5706 | break; |
2c03e5be PA |
5707 | case bp_hp_step_resume: |
5708 | if (bs->stop) | |
5709 | this_action = BPSTAT_WHAT_HP_STEP_RESUME; | |
5710 | else | |
5711 | { | |
5712 | /* It is for the wrong frame. */ | |
5713 | this_action = BPSTAT_WHAT_SINGLE; | |
5714 | } | |
5715 | break; | |
c906108c | 5716 | case bp_watchpoint_scope: |
c4093a6a | 5717 | case bp_thread_event: |
1900040c | 5718 | case bp_overlay_event: |
0fd8e87f | 5719 | case bp_longjmp_master: |
aa7d318d | 5720 | case bp_std_terminate_master: |
186c406b | 5721 | case bp_exception_master: |
628fe4e4 | 5722 | this_action = BPSTAT_WHAT_SINGLE; |
c4093a6a | 5723 | break; |
ce78b96d | 5724 | case bp_catchpoint: |
c5aa993b JM |
5725 | if (bs->stop) |
5726 | { | |
5727 | if (bs->print) | |
628fe4e4 | 5728 | this_action = BPSTAT_WHAT_STOP_NOISY; |
c5aa993b | 5729 | else |
628fe4e4 | 5730 | this_action = BPSTAT_WHAT_STOP_SILENT; |
c5aa993b JM |
5731 | } |
5732 | else | |
628fe4e4 JK |
5733 | { |
5734 | /* There was a catchpoint, but we're not stopping. | |
5735 | This requires no further action. */ | |
5736 | } | |
5737 | break; | |
628fe4e4 JK |
5738 | case bp_jit_event: |
5739 | jit_event = 1; | |
5740 | this_action = BPSTAT_WHAT_SINGLE; | |
c5aa993b | 5741 | break; |
c906108c | 5742 | case bp_call_dummy: |
53a5351d JM |
5743 | /* Make sure the action is stop (silent or noisy), |
5744 | so infrun.c pops the dummy frame. */ | |
aa7d318d | 5745 | retval.call_dummy = STOP_STACK_DUMMY; |
628fe4e4 | 5746 | this_action = BPSTAT_WHAT_STOP_SILENT; |
aa7d318d TT |
5747 | break; |
5748 | case bp_std_terminate: | |
5749 | /* Make sure the action is stop (silent or noisy), | |
5750 | so infrun.c pops the dummy frame. */ | |
aa7d318d | 5751 | retval.call_dummy = STOP_STD_TERMINATE; |
628fe4e4 | 5752 | this_action = BPSTAT_WHAT_STOP_SILENT; |
c906108c | 5753 | break; |
1042e4c0 | 5754 | case bp_tracepoint: |
7a697b8d | 5755 | case bp_fast_tracepoint: |
0fb4aa4b | 5756 | case bp_static_tracepoint: |
1042e4c0 SS |
5757 | /* Tracepoint hits should not be reported back to GDB, and |
5758 | if one got through somehow, it should have been filtered | |
5759 | out already. */ | |
5760 | internal_error (__FILE__, __LINE__, | |
7a697b8d | 5761 | _("bpstat_what: tracepoint encountered")); |
0e30163f JK |
5762 | break; |
5763 | case bp_gnu_ifunc_resolver: | |
5764 | /* Step over it (and insert bp_gnu_ifunc_resolver_return). */ | |
5765 | this_action = BPSTAT_WHAT_SINGLE; | |
5766 | break; | |
5767 | case bp_gnu_ifunc_resolver_return: | |
5768 | /* The breakpoint will be removed, execution will restart from the | |
5769 | PC of the former breakpoint. */ | |
5770 | this_action = BPSTAT_WHAT_KEEP_CHECKING; | |
5771 | break; | |
e7e0cddf SS |
5772 | |
5773 | case bp_dprintf: | |
a11cfd87 HZ |
5774 | if (bs->stop) |
5775 | this_action = BPSTAT_WHAT_STOP_SILENT; | |
5776 | else | |
5777 | this_action = BPSTAT_WHAT_SINGLE; | |
e7e0cddf SS |
5778 | break; |
5779 | ||
628fe4e4 JK |
5780 | default: |
5781 | internal_error (__FILE__, __LINE__, | |
5782 | _("bpstat_what: unhandled bptype %d"), (int) bptype); | |
c906108c | 5783 | } |
628fe4e4 JK |
5784 | |
5785 | retval.main_action = max (retval.main_action, this_action); | |
c906108c | 5786 | } |
628fe4e4 | 5787 | |
0e30163f JK |
5788 | /* These operations may affect the bs->breakpoint_at state so they are |
5789 | delayed after MAIN_ACTION is decided above. */ | |
5790 | ||
628fe4e4 JK |
5791 | if (jit_event) |
5792 | { | |
5793 | if (debug_infrun) | |
5794 | fprintf_unfiltered (gdb_stdlog, "bpstat_what: bp_jit_event\n"); | |
5795 | ||
5796 | handle_jit_event (); | |
5797 | } | |
5798 | ||
0e30163f JK |
5799 | for (bs = bs_head; bs != NULL; bs = bs->next) |
5800 | { | |
5801 | struct breakpoint *b = bs->breakpoint_at; | |
5802 | ||
5803 | if (b == NULL) | |
5804 | continue; | |
5805 | switch (b->type) | |
5806 | { | |
5807 | case bp_gnu_ifunc_resolver: | |
5808 | gnu_ifunc_resolver_stop (b); | |
5809 | break; | |
5810 | case bp_gnu_ifunc_resolver_return: | |
5811 | gnu_ifunc_resolver_return_stop (b); | |
5812 | break; | |
5813 | } | |
5814 | } | |
5815 | ||
c906108c SS |
5816 | return retval; |
5817 | } | |
5818 | ||
5819 | /* Nonzero if we should step constantly (e.g. watchpoints on machines | |
5820 | without hardware support). This isn't related to a specific bpstat, | |
5821 | just to things like whether watchpoints are set. */ | |
5822 | ||
c5aa993b | 5823 | int |
fba45db2 | 5824 | bpstat_should_step (void) |
c906108c SS |
5825 | { |
5826 | struct breakpoint *b; | |
cc59ec59 | 5827 | |
c906108c | 5828 | ALL_BREAKPOINTS (b) |
717a8278 | 5829 | if (breakpoint_enabled (b) && b->type == bp_watchpoint && b->loc != NULL) |
3172dc30 | 5830 | return 1; |
c906108c SS |
5831 | return 0; |
5832 | } | |
5833 | ||
67822962 PA |
5834 | int |
5835 | bpstat_causes_stop (bpstat bs) | |
5836 | { | |
5837 | for (; bs != NULL; bs = bs->next) | |
5838 | if (bs->stop) | |
5839 | return 1; | |
5840 | ||
5841 | return 0; | |
5842 | } | |
5843 | ||
c906108c | 5844 | \f |
c5aa993b | 5845 | |
170b53b2 UW |
5846 | /* Compute a string of spaces suitable to indent the next line |
5847 | so it starts at the position corresponding to the table column | |
5848 | named COL_NAME in the currently active table of UIOUT. */ | |
5849 | ||
5850 | static char * | |
5851 | wrap_indent_at_field (struct ui_out *uiout, const char *col_name) | |
5852 | { | |
5853 | static char wrap_indent[80]; | |
5854 | int i, total_width, width, align; | |
5855 | char *text; | |
5856 | ||
5857 | total_width = 0; | |
5858 | for (i = 1; ui_out_query_field (uiout, i, &width, &align, &text); i++) | |
5859 | { | |
5860 | if (strcmp (text, col_name) == 0) | |
5861 | { | |
5862 | gdb_assert (total_width < sizeof wrap_indent); | |
5863 | memset (wrap_indent, ' ', total_width); | |
5864 | wrap_indent[total_width] = 0; | |
5865 | ||
5866 | return wrap_indent; | |
5867 | } | |
5868 | ||
5869 | total_width += width + 1; | |
5870 | } | |
5871 | ||
5872 | return NULL; | |
5873 | } | |
5874 | ||
b775012e LM |
5875 | /* Determine if the locations of this breakpoint will have their conditions |
5876 | evaluated by the target, host or a mix of both. Returns the following: | |
5877 | ||
5878 | "host": Host evals condition. | |
5879 | "host or target": Host or Target evals condition. | |
5880 | "target": Target evals condition. | |
5881 | */ | |
5882 | ||
5883 | static const char * | |
5884 | bp_condition_evaluator (struct breakpoint *b) | |
5885 | { | |
5886 | struct bp_location *bl; | |
5887 | char host_evals = 0; | |
5888 | char target_evals = 0; | |
5889 | ||
5890 | if (!b) | |
5891 | return NULL; | |
5892 | ||
5893 | if (!is_breakpoint (b)) | |
5894 | return NULL; | |
5895 | ||
5896 | if (gdb_evaluates_breakpoint_condition_p () | |
5897 | || !target_supports_evaluation_of_breakpoint_conditions ()) | |
5898 | return condition_evaluation_host; | |
5899 | ||
5900 | for (bl = b->loc; bl; bl = bl->next) | |
5901 | { | |
5902 | if (bl->cond_bytecode) | |
5903 | target_evals++; | |
5904 | else | |
5905 | host_evals++; | |
5906 | } | |
5907 | ||
5908 | if (host_evals && target_evals) | |
5909 | return condition_evaluation_both; | |
5910 | else if (target_evals) | |
5911 | return condition_evaluation_target; | |
5912 | else | |
5913 | return condition_evaluation_host; | |
5914 | } | |
5915 | ||
5916 | /* Determine the breakpoint location's condition evaluator. This is | |
5917 | similar to bp_condition_evaluator, but for locations. */ | |
5918 | ||
5919 | static const char * | |
5920 | bp_location_condition_evaluator (struct bp_location *bl) | |
5921 | { | |
5922 | if (bl && !is_breakpoint (bl->owner)) | |
5923 | return NULL; | |
5924 | ||
5925 | if (gdb_evaluates_breakpoint_condition_p () | |
5926 | || !target_supports_evaluation_of_breakpoint_conditions ()) | |
5927 | return condition_evaluation_host; | |
5928 | ||
5929 | if (bl && bl->cond_bytecode) | |
5930 | return condition_evaluation_target; | |
5931 | else | |
5932 | return condition_evaluation_host; | |
5933 | } | |
5934 | ||
859825b8 JK |
5935 | /* Print the LOC location out of the list of B->LOC locations. */ |
5936 | ||
170b53b2 UW |
5937 | static void |
5938 | print_breakpoint_location (struct breakpoint *b, | |
5939 | struct bp_location *loc) | |
0d381245 | 5940 | { |
79a45e25 | 5941 | struct ui_out *uiout = current_uiout; |
6c95b8df PA |
5942 | struct cleanup *old_chain = save_current_program_space (); |
5943 | ||
859825b8 JK |
5944 | if (loc != NULL && loc->shlib_disabled) |
5945 | loc = NULL; | |
5946 | ||
6c95b8df PA |
5947 | if (loc != NULL) |
5948 | set_current_program_space (loc->pspace); | |
5949 | ||
56435ebe TT |
5950 | if (b->display_canonical) |
5951 | ui_out_field_string (uiout, "what", b->addr_string); | |
2f202fde | 5952 | else if (loc && loc->symtab) |
0d381245 VP |
5953 | { |
5954 | struct symbol *sym | |
5955 | = find_pc_sect_function (loc->address, loc->section); | |
5956 | if (sym) | |
5957 | { | |
5958 | ui_out_text (uiout, "in "); | |
5959 | ui_out_field_string (uiout, "func", | |
5960 | SYMBOL_PRINT_NAME (sym)); | |
170b53b2 UW |
5961 | ui_out_text (uiout, " "); |
5962 | ui_out_wrap_hint (uiout, wrap_indent_at_field (uiout, "what")); | |
5963 | ui_out_text (uiout, "at "); | |
0d381245 | 5964 | } |
05cba821 JK |
5965 | ui_out_field_string (uiout, "file", |
5966 | symtab_to_filename_for_display (loc->symtab)); | |
0d381245 | 5967 | ui_out_text (uiout, ":"); |
05cba821 | 5968 | |
0d381245 | 5969 | if (ui_out_is_mi_like_p (uiout)) |
2f202fde JK |
5970 | ui_out_field_string (uiout, "fullname", |
5971 | symtab_to_fullname (loc->symtab)); | |
0d381245 | 5972 | |
f8eba3c6 | 5973 | ui_out_field_int (uiout, "line", loc->line_number); |
0d381245 | 5974 | } |
859825b8 | 5975 | else if (loc) |
0d381245 | 5976 | { |
f99d8bf4 PA |
5977 | struct ui_file *stb = mem_fileopen (); |
5978 | struct cleanup *stb_chain = make_cleanup_ui_file_delete (stb); | |
170b53b2 | 5979 | |
f99d8bf4 | 5980 | print_address_symbolic (loc->gdbarch, loc->address, stb, |
22e722e1 | 5981 | demangle, ""); |
0d381245 | 5982 | ui_out_field_stream (uiout, "at", stb); |
170b53b2 UW |
5983 | |
5984 | do_cleanups (stb_chain); | |
0d381245 | 5985 | } |
859825b8 JK |
5986 | else |
5987 | ui_out_field_string (uiout, "pending", b->addr_string); | |
6c95b8df | 5988 | |
b775012e LM |
5989 | if (loc && is_breakpoint (b) |
5990 | && breakpoint_condition_evaluation_mode () == condition_evaluation_target | |
5991 | && bp_condition_evaluator (b) == condition_evaluation_both) | |
5992 | { | |
5993 | ui_out_text (uiout, " ("); | |
5994 | ui_out_field_string (uiout, "evaluated-by", | |
5995 | bp_location_condition_evaluator (loc)); | |
5996 | ui_out_text (uiout, ")"); | |
5997 | } | |
5998 | ||
6c95b8df | 5999 | do_cleanups (old_chain); |
0d381245 VP |
6000 | } |
6001 | ||
269b11a2 PA |
6002 | static const char * |
6003 | bptype_string (enum bptype type) | |
c906108c | 6004 | { |
c4093a6a JM |
6005 | struct ep_type_description |
6006 | { | |
6007 | enum bptype type; | |
6008 | char *description; | |
6009 | }; | |
6010 | static struct ep_type_description bptypes[] = | |
c906108c | 6011 | { |
c5aa993b JM |
6012 | {bp_none, "?deleted?"}, |
6013 | {bp_breakpoint, "breakpoint"}, | |
c906108c | 6014 | {bp_hardware_breakpoint, "hw breakpoint"}, |
c5aa993b JM |
6015 | {bp_until, "until"}, |
6016 | {bp_finish, "finish"}, | |
6017 | {bp_watchpoint, "watchpoint"}, | |
c906108c | 6018 | {bp_hardware_watchpoint, "hw watchpoint"}, |
c5aa993b JM |
6019 | {bp_read_watchpoint, "read watchpoint"}, |
6020 | {bp_access_watchpoint, "acc watchpoint"}, | |
6021 | {bp_longjmp, "longjmp"}, | |
6022 | {bp_longjmp_resume, "longjmp resume"}, | |
e2e4d78b | 6023 | {bp_longjmp_call_dummy, "longjmp for call dummy"}, |
186c406b TT |
6024 | {bp_exception, "exception"}, |
6025 | {bp_exception_resume, "exception resume"}, | |
c5aa993b | 6026 | {bp_step_resume, "step resume"}, |
2c03e5be | 6027 | {bp_hp_step_resume, "high-priority step resume"}, |
c5aa993b JM |
6028 | {bp_watchpoint_scope, "watchpoint scope"}, |
6029 | {bp_call_dummy, "call dummy"}, | |
aa7d318d | 6030 | {bp_std_terminate, "std::terminate"}, |
c5aa993b | 6031 | {bp_shlib_event, "shlib events"}, |
c4093a6a | 6032 | {bp_thread_event, "thread events"}, |
1900040c | 6033 | {bp_overlay_event, "overlay events"}, |
0fd8e87f | 6034 | {bp_longjmp_master, "longjmp master"}, |
aa7d318d | 6035 | {bp_std_terminate_master, "std::terminate master"}, |
186c406b | 6036 | {bp_exception_master, "exception master"}, |
ce78b96d | 6037 | {bp_catchpoint, "catchpoint"}, |
1042e4c0 | 6038 | {bp_tracepoint, "tracepoint"}, |
7a697b8d | 6039 | {bp_fast_tracepoint, "fast tracepoint"}, |
0fb4aa4b | 6040 | {bp_static_tracepoint, "static tracepoint"}, |
e7e0cddf | 6041 | {bp_dprintf, "dprintf"}, |
4efc6507 | 6042 | {bp_jit_event, "jit events"}, |
0e30163f JK |
6043 | {bp_gnu_ifunc_resolver, "STT_GNU_IFUNC resolver"}, |
6044 | {bp_gnu_ifunc_resolver_return, "STT_GNU_IFUNC resolver return"}, | |
c5aa993b | 6045 | }; |
269b11a2 PA |
6046 | |
6047 | if (((int) type >= (sizeof (bptypes) / sizeof (bptypes[0]))) | |
6048 | || ((int) type != bptypes[(int) type].type)) | |
6049 | internal_error (__FILE__, __LINE__, | |
6050 | _("bptypes table does not describe type #%d."), | |
6051 | (int) type); | |
6052 | ||
6053 | return bptypes[(int) type].description; | |
6054 | } | |
6055 | ||
998580f1 MK |
6056 | /* For MI, output a field named 'thread-groups' with a list as the value. |
6057 | For CLI, prefix the list with the string 'inf'. */ | |
6058 | ||
6059 | static void | |
6060 | output_thread_groups (struct ui_out *uiout, | |
6061 | const char *field_name, | |
6062 | VEC(int) *inf_num, | |
6063 | int mi_only) | |
6064 | { | |
752eb8b4 | 6065 | struct cleanup *back_to; |
998580f1 MK |
6066 | int is_mi = ui_out_is_mi_like_p (uiout); |
6067 | int inf; | |
6068 | int i; | |
6069 | ||
6070 | /* For backward compatibility, don't display inferiors in CLI unless | |
6071 | there are several. Always display them for MI. */ | |
6072 | if (!is_mi && mi_only) | |
6073 | return; | |
6074 | ||
752eb8b4 TT |
6075 | back_to = make_cleanup_ui_out_list_begin_end (uiout, field_name); |
6076 | ||
998580f1 MK |
6077 | for (i = 0; VEC_iterate (int, inf_num, i, inf); ++i) |
6078 | { | |
6079 | if (is_mi) | |
6080 | { | |
6081 | char mi_group[10]; | |
6082 | ||
6083 | xsnprintf (mi_group, sizeof (mi_group), "i%d", inf); | |
6084 | ui_out_field_string (uiout, NULL, mi_group); | |
6085 | } | |
6086 | else | |
6087 | { | |
6088 | if (i == 0) | |
6089 | ui_out_text (uiout, " inf "); | |
6090 | else | |
6091 | ui_out_text (uiout, ", "); | |
6092 | ||
6093 | ui_out_text (uiout, plongest (inf)); | |
6094 | } | |
6095 | } | |
6096 | ||
6097 | do_cleanups (back_to); | |
6098 | } | |
6099 | ||
269b11a2 PA |
6100 | /* Print B to gdb_stdout. */ |
6101 | ||
6102 | static void | |
6103 | print_one_breakpoint_location (struct breakpoint *b, | |
6104 | struct bp_location *loc, | |
6105 | int loc_number, | |
6106 | struct bp_location **last_loc, | |
269b11a2 PA |
6107 | int allflag) |
6108 | { | |
6109 | struct command_line *l; | |
c2c6d25f | 6110 | static char bpenables[] = "nynny"; |
c906108c | 6111 | |
79a45e25 | 6112 | struct ui_out *uiout = current_uiout; |
0d381245 VP |
6113 | int header_of_multiple = 0; |
6114 | int part_of_multiple = (loc != NULL); | |
79a45b7d TT |
6115 | struct value_print_options opts; |
6116 | ||
6117 | get_user_print_options (&opts); | |
0d381245 VP |
6118 | |
6119 | gdb_assert (!loc || loc_number != 0); | |
4a64f543 MS |
6120 | /* See comment in print_one_breakpoint concerning treatment of |
6121 | breakpoints with single disabled location. */ | |
0d381245 VP |
6122 | if (loc == NULL |
6123 | && (b->loc != NULL | |
6124 | && (b->loc->next != NULL || !b->loc->enabled))) | |
6125 | header_of_multiple = 1; | |
6126 | if (loc == NULL) | |
6127 | loc = b->loc; | |
6128 | ||
c4093a6a JM |
6129 | annotate_record (); |
6130 | ||
6131 | /* 1 */ | |
6132 | annotate_field (0); | |
0d381245 VP |
6133 | if (part_of_multiple) |
6134 | { | |
6135 | char *formatted; | |
0c6773c1 | 6136 | formatted = xstrprintf ("%d.%d", b->number, loc_number); |
0d381245 VP |
6137 | ui_out_field_string (uiout, "number", formatted); |
6138 | xfree (formatted); | |
6139 | } | |
6140 | else | |
6141 | { | |
6142 | ui_out_field_int (uiout, "number", b->number); | |
6143 | } | |
c4093a6a JM |
6144 | |
6145 | /* 2 */ | |
6146 | annotate_field (1); | |
0d381245 VP |
6147 | if (part_of_multiple) |
6148 | ui_out_field_skip (uiout, "type"); | |
269b11a2 PA |
6149 | else |
6150 | ui_out_field_string (uiout, "type", bptype_string (b->type)); | |
c4093a6a JM |
6151 | |
6152 | /* 3 */ | |
6153 | annotate_field (2); | |
0d381245 VP |
6154 | if (part_of_multiple) |
6155 | ui_out_field_skip (uiout, "disp"); | |
6156 | else | |
2cec12e5 | 6157 | ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition)); |
0d381245 | 6158 | |
c4093a6a JM |
6159 | |
6160 | /* 4 */ | |
6161 | annotate_field (3); | |
0d381245 | 6162 | if (part_of_multiple) |
54e52265 | 6163 | ui_out_field_string (uiout, "enabled", loc->enabled ? "y" : "n"); |
0d381245 | 6164 | else |
4a64f543 MS |
6165 | ui_out_field_fmt (uiout, "enabled", "%c", |
6166 | bpenables[(int) b->enable_state]); | |
54e52265 | 6167 | ui_out_spaces (uiout, 2); |
0d381245 | 6168 | |
c4093a6a JM |
6169 | |
6170 | /* 5 and 6 */ | |
3086aeae | 6171 | if (b->ops != NULL && b->ops->print_one != NULL) |
0d381245 | 6172 | { |
4a64f543 MS |
6173 | /* Although the print_one can possibly print all locations, |
6174 | calling it here is not likely to get any nice result. So, | |
6175 | make sure there's just one location. */ | |
0d381245 | 6176 | gdb_assert (b->loc == NULL || b->loc->next == NULL); |
a6d9a66e | 6177 | b->ops->print_one (b, last_loc); |
0d381245 | 6178 | } |
3086aeae DJ |
6179 | else |
6180 | switch (b->type) | |
6181 | { | |
6182 | case bp_none: | |
6183 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 6184 | _("print_one_breakpoint: bp_none encountered\n")); |
3086aeae | 6185 | break; |
c906108c | 6186 | |
3086aeae DJ |
6187 | case bp_watchpoint: |
6188 | case bp_hardware_watchpoint: | |
6189 | case bp_read_watchpoint: | |
6190 | case bp_access_watchpoint: | |
3a5c3e22 PA |
6191 | { |
6192 | struct watchpoint *w = (struct watchpoint *) b; | |
6193 | ||
6194 | /* Field 4, the address, is omitted (which makes the columns | |
6195 | not line up too nicely with the headers, but the effect | |
6196 | is relatively readable). */ | |
6197 | if (opts.addressprint) | |
6198 | ui_out_field_skip (uiout, "addr"); | |
6199 | annotate_field (5); | |
6200 | ui_out_field_string (uiout, "what", w->exp_string); | |
6201 | } | |
3086aeae DJ |
6202 | break; |
6203 | ||
3086aeae DJ |
6204 | case bp_breakpoint: |
6205 | case bp_hardware_breakpoint: | |
6206 | case bp_until: | |
6207 | case bp_finish: | |
6208 | case bp_longjmp: | |
6209 | case bp_longjmp_resume: | |
e2e4d78b | 6210 | case bp_longjmp_call_dummy: |
186c406b TT |
6211 | case bp_exception: |
6212 | case bp_exception_resume: | |
3086aeae | 6213 | case bp_step_resume: |
2c03e5be | 6214 | case bp_hp_step_resume: |
3086aeae DJ |
6215 | case bp_watchpoint_scope: |
6216 | case bp_call_dummy: | |
aa7d318d | 6217 | case bp_std_terminate: |
3086aeae DJ |
6218 | case bp_shlib_event: |
6219 | case bp_thread_event: | |
6220 | case bp_overlay_event: | |
0fd8e87f | 6221 | case bp_longjmp_master: |
aa7d318d | 6222 | case bp_std_terminate_master: |
186c406b | 6223 | case bp_exception_master: |
1042e4c0 | 6224 | case bp_tracepoint: |
7a697b8d | 6225 | case bp_fast_tracepoint: |
0fb4aa4b | 6226 | case bp_static_tracepoint: |
e7e0cddf | 6227 | case bp_dprintf: |
4efc6507 | 6228 | case bp_jit_event: |
0e30163f JK |
6229 | case bp_gnu_ifunc_resolver: |
6230 | case bp_gnu_ifunc_resolver_return: | |
79a45b7d | 6231 | if (opts.addressprint) |
3086aeae DJ |
6232 | { |
6233 | annotate_field (4); | |
54e52265 | 6234 | if (header_of_multiple) |
0d381245 | 6235 | ui_out_field_string (uiout, "addr", "<MULTIPLE>"); |
e9bbd7c5 | 6236 | else if (b->loc == NULL || loc->shlib_disabled) |
54e52265 | 6237 | ui_out_field_string (uiout, "addr", "<PENDING>"); |
0101ce28 | 6238 | else |
5af949e3 UW |
6239 | ui_out_field_core_addr (uiout, "addr", |
6240 | loc->gdbarch, loc->address); | |
3086aeae DJ |
6241 | } |
6242 | annotate_field (5); | |
0d381245 | 6243 | if (!header_of_multiple) |
170b53b2 | 6244 | print_breakpoint_location (b, loc); |
0d381245 | 6245 | if (b->loc) |
a6d9a66e | 6246 | *last_loc = b->loc; |
3086aeae DJ |
6247 | break; |
6248 | } | |
c906108c | 6249 | |
6c95b8df | 6250 | |
998580f1 | 6251 | if (loc != NULL && !header_of_multiple) |
6c95b8df PA |
6252 | { |
6253 | struct inferior *inf; | |
998580f1 MK |
6254 | VEC(int) *inf_num = NULL; |
6255 | int mi_only = 1; | |
6c95b8df | 6256 | |
998580f1 | 6257 | ALL_INFERIORS (inf) |
6c95b8df PA |
6258 | { |
6259 | if (inf->pspace == loc->pspace) | |
998580f1 | 6260 | VEC_safe_push (int, inf_num, inf->num); |
6c95b8df | 6261 | } |
998580f1 MK |
6262 | |
6263 | /* For backward compatibility, don't display inferiors in CLI unless | |
6264 | there are several. Always display for MI. */ | |
6265 | if (allflag | |
6266 | || (!gdbarch_has_global_breakpoints (target_gdbarch ()) | |
6267 | && (number_of_program_spaces () > 1 | |
6268 | || number_of_inferiors () > 1) | |
6269 | /* LOC is for existing B, it cannot be in | |
6270 | moribund_locations and thus having NULL OWNER. */ | |
6271 | && loc->owner->type != bp_catchpoint)) | |
6272 | mi_only = 0; | |
6273 | output_thread_groups (uiout, "thread-groups", inf_num, mi_only); | |
6274 | VEC_free (int, inf_num); | |
6c95b8df PA |
6275 | } |
6276 | ||
4a306c9a | 6277 | if (!part_of_multiple) |
c4093a6a | 6278 | { |
4a306c9a JB |
6279 | if (b->thread != -1) |
6280 | { | |
6281 | /* FIXME: This seems to be redundant and lost here; see the | |
4a64f543 | 6282 | "stop only in" line a little further down. */ |
4a306c9a JB |
6283 | ui_out_text (uiout, " thread "); |
6284 | ui_out_field_int (uiout, "thread", b->thread); | |
6285 | } | |
6286 | else if (b->task != 0) | |
6287 | { | |
6288 | ui_out_text (uiout, " task "); | |
6289 | ui_out_field_int (uiout, "task", b->task); | |
6290 | } | |
c4093a6a | 6291 | } |
f1310107 | 6292 | |
8b93c638 | 6293 | ui_out_text (uiout, "\n"); |
f1310107 | 6294 | |
348d480f | 6295 | if (!part_of_multiple) |
f1310107 TJB |
6296 | b->ops->print_one_detail (b, uiout); |
6297 | ||
0d381245 | 6298 | if (part_of_multiple && frame_id_p (b->frame_id)) |
c4093a6a JM |
6299 | { |
6300 | annotate_field (6); | |
8b93c638 | 6301 | ui_out_text (uiout, "\tstop only in stack frame at "); |
e5dd4106 | 6302 | /* FIXME: cagney/2002-12-01: Shouldn't be poking around inside |
818dd999 | 6303 | the frame ID. */ |
5af949e3 UW |
6304 | ui_out_field_core_addr (uiout, "frame", |
6305 | b->gdbarch, b->frame_id.stack_addr); | |
8b93c638 | 6306 | ui_out_text (uiout, "\n"); |
c4093a6a JM |
6307 | } |
6308 | ||
28010a5d | 6309 | if (!part_of_multiple && b->cond_string) |
c4093a6a JM |
6310 | { |
6311 | annotate_field (7); | |
d77f58be | 6312 | if (is_tracepoint (b)) |
1042e4c0 SS |
6313 | ui_out_text (uiout, "\ttrace only if "); |
6314 | else | |
6315 | ui_out_text (uiout, "\tstop only if "); | |
0101ce28 | 6316 | ui_out_field_string (uiout, "cond", b->cond_string); |
b775012e LM |
6317 | |
6318 | /* Print whether the target is doing the breakpoint's condition | |
6319 | evaluation. If GDB is doing the evaluation, don't print anything. */ | |
6320 | if (is_breakpoint (b) | |
6321 | && breakpoint_condition_evaluation_mode () | |
6322 | == condition_evaluation_target) | |
6323 | { | |
6324 | ui_out_text (uiout, " ("); | |
6325 | ui_out_field_string (uiout, "evaluated-by", | |
6326 | bp_condition_evaluator (b)); | |
6327 | ui_out_text (uiout, " evals)"); | |
6328 | } | |
0101ce28 JJ |
6329 | ui_out_text (uiout, "\n"); |
6330 | } | |
6331 | ||
0d381245 | 6332 | if (!part_of_multiple && b->thread != -1) |
c4093a6a | 6333 | { |
4a64f543 | 6334 | /* FIXME should make an annotation for this. */ |
8b93c638 JM |
6335 | ui_out_text (uiout, "\tstop only in thread "); |
6336 | ui_out_field_int (uiout, "thread", b->thread); | |
6337 | ui_out_text (uiout, "\n"); | |
c4093a6a JM |
6338 | } |
6339 | ||
556ec64d YQ |
6340 | if (!part_of_multiple) |
6341 | { | |
6342 | if (b->hit_count) | |
31f56a27 YQ |
6343 | { |
6344 | /* FIXME should make an annotation for this. */ | |
6345 | if (is_catchpoint (b)) | |
6346 | ui_out_text (uiout, "\tcatchpoint"); | |
6347 | else if (is_tracepoint (b)) | |
6348 | ui_out_text (uiout, "\ttracepoint"); | |
6349 | else | |
6350 | ui_out_text (uiout, "\tbreakpoint"); | |
6351 | ui_out_text (uiout, " already hit "); | |
6352 | ui_out_field_int (uiout, "times", b->hit_count); | |
6353 | if (b->hit_count == 1) | |
6354 | ui_out_text (uiout, " time\n"); | |
6355 | else | |
6356 | ui_out_text (uiout, " times\n"); | |
6357 | } | |
556ec64d YQ |
6358 | else |
6359 | { | |
31f56a27 YQ |
6360 | /* Output the count also if it is zero, but only if this is mi. */ |
6361 | if (ui_out_is_mi_like_p (uiout)) | |
6362 | ui_out_field_int (uiout, "times", b->hit_count); | |
556ec64d YQ |
6363 | } |
6364 | } | |
8b93c638 | 6365 | |
0d381245 | 6366 | if (!part_of_multiple && b->ignore_count) |
c4093a6a JM |
6367 | { |
6368 | annotate_field (8); | |
8b93c638 JM |
6369 | ui_out_text (uiout, "\tignore next "); |
6370 | ui_out_field_int (uiout, "ignore", b->ignore_count); | |
6371 | ui_out_text (uiout, " hits\n"); | |
c4093a6a | 6372 | } |
059fb39f | 6373 | |
816338b5 SS |
6374 | /* Note that an enable count of 1 corresponds to "enable once" |
6375 | behavior, which is reported by the combination of enablement and | |
6376 | disposition, so we don't need to mention it here. */ | |
6377 | if (!part_of_multiple && b->enable_count > 1) | |
6378 | { | |
6379 | annotate_field (8); | |
6380 | ui_out_text (uiout, "\tdisable after "); | |
6381 | /* Tweak the wording to clarify that ignore and enable counts | |
6382 | are distinct, and have additive effect. */ | |
6383 | if (b->ignore_count) | |
6384 | ui_out_text (uiout, "additional "); | |
6385 | else | |
6386 | ui_out_text (uiout, "next "); | |
6387 | ui_out_field_int (uiout, "enable", b->enable_count); | |
6388 | ui_out_text (uiout, " hits\n"); | |
6389 | } | |
6390 | ||
f196051f SS |
6391 | if (!part_of_multiple && is_tracepoint (b)) |
6392 | { | |
6393 | struct tracepoint *tp = (struct tracepoint *) b; | |
6394 | ||
6395 | if (tp->traceframe_usage) | |
6396 | { | |
6397 | ui_out_text (uiout, "\ttrace buffer usage "); | |
6398 | ui_out_field_int (uiout, "traceframe-usage", tp->traceframe_usage); | |
6399 | ui_out_text (uiout, " bytes\n"); | |
6400 | } | |
6401 | } | |
d3ce09f5 | 6402 | |
9add0f1b | 6403 | l = b->commands ? b->commands->commands : NULL; |
059fb39f | 6404 | if (!part_of_multiple && l) |
c4093a6a | 6405 | { |
3b31d625 EZ |
6406 | struct cleanup *script_chain; |
6407 | ||
c4093a6a | 6408 | annotate_field (9); |
3b31d625 | 6409 | script_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "script"); |
8b93c638 | 6410 | print_command_lines (uiout, l, 4); |
3b31d625 | 6411 | do_cleanups (script_chain); |
c4093a6a | 6412 | } |
d24317b4 | 6413 | |
d9b3f62e | 6414 | if (is_tracepoint (b)) |
1042e4c0 | 6415 | { |
d9b3f62e PA |
6416 | struct tracepoint *t = (struct tracepoint *) b; |
6417 | ||
6418 | if (!part_of_multiple && t->pass_count) | |
6419 | { | |
6420 | annotate_field (10); | |
6421 | ui_out_text (uiout, "\tpass count "); | |
6422 | ui_out_field_int (uiout, "pass", t->pass_count); | |
6423 | ui_out_text (uiout, " \n"); | |
6424 | } | |
f2a8bc8a YQ |
6425 | |
6426 | /* Don't display it when tracepoint or tracepoint location is | |
6427 | pending. */ | |
6428 | if (!header_of_multiple && loc != NULL && !loc->shlib_disabled) | |
6429 | { | |
6430 | annotate_field (11); | |
6431 | ||
6432 | if (ui_out_is_mi_like_p (uiout)) | |
6433 | ui_out_field_string (uiout, "installed", | |
6434 | loc->inserted ? "y" : "n"); | |
6435 | else | |
6436 | { | |
6437 | if (loc->inserted) | |
6438 | ui_out_text (uiout, "\t"); | |
6439 | else | |
6440 | ui_out_text (uiout, "\tnot "); | |
6441 | ui_out_text (uiout, "installed on target\n"); | |
6442 | } | |
6443 | } | |
1042e4c0 SS |
6444 | } |
6445 | ||
d24317b4 VP |
6446 | if (ui_out_is_mi_like_p (uiout) && !part_of_multiple) |
6447 | { | |
3a5c3e22 PA |
6448 | if (is_watchpoint (b)) |
6449 | { | |
6450 | struct watchpoint *w = (struct watchpoint *) b; | |
6451 | ||
6452 | ui_out_field_string (uiout, "original-location", w->exp_string); | |
6453 | } | |
6454 | else if (b->addr_string) | |
d24317b4 | 6455 | ui_out_field_string (uiout, "original-location", b->addr_string); |
d24317b4 | 6456 | } |
c4093a6a | 6457 | } |
c5aa993b | 6458 | |
0d381245 VP |
6459 | static void |
6460 | print_one_breakpoint (struct breakpoint *b, | |
4a64f543 | 6461 | struct bp_location **last_loc, |
6c95b8df | 6462 | int allflag) |
0d381245 | 6463 | { |
8d3788bd | 6464 | struct cleanup *bkpt_chain; |
79a45e25 | 6465 | struct ui_out *uiout = current_uiout; |
8d3788bd VP |
6466 | |
6467 | bkpt_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "bkpt"); | |
6468 | ||
12c5a436 | 6469 | print_one_breakpoint_location (b, NULL, 0, last_loc, allflag); |
8d3788bd | 6470 | do_cleanups (bkpt_chain); |
0d381245 VP |
6471 | |
6472 | /* If this breakpoint has custom print function, | |
6473 | it's already printed. Otherwise, print individual | |
6474 | locations, if any. */ | |
6475 | if (b->ops == NULL || b->ops->print_one == NULL) | |
6476 | { | |
4a64f543 MS |
6477 | /* If breakpoint has a single location that is disabled, we |
6478 | print it as if it had several locations, since otherwise it's | |
6479 | hard to represent "breakpoint enabled, location disabled" | |
6480 | situation. | |
6481 | ||
6482 | Note that while hardware watchpoints have several locations | |
a3be7890 | 6483 | internally, that's not a property exposed to user. */ |
0d381245 | 6484 | if (b->loc |
a5606eee | 6485 | && !is_hardware_watchpoint (b) |
8d3788bd | 6486 | && (b->loc->next || !b->loc->enabled)) |
0d381245 VP |
6487 | { |
6488 | struct bp_location *loc; | |
6489 | int n = 1; | |
8d3788bd | 6490 | |
0d381245 | 6491 | for (loc = b->loc; loc; loc = loc->next, ++n) |
8d3788bd VP |
6492 | { |
6493 | struct cleanup *inner2 = | |
6494 | make_cleanup_ui_out_tuple_begin_end (uiout, NULL); | |
6495 | print_one_breakpoint_location (b, loc, n, last_loc, allflag); | |
6496 | do_cleanups (inner2); | |
6497 | } | |
0d381245 VP |
6498 | } |
6499 | } | |
6500 | } | |
6501 | ||
a6d9a66e UW |
6502 | static int |
6503 | breakpoint_address_bits (struct breakpoint *b) | |
6504 | { | |
6505 | int print_address_bits = 0; | |
6506 | struct bp_location *loc; | |
6507 | ||
6508 | for (loc = b->loc; loc; loc = loc->next) | |
6509 | { | |
c7437ca6 PA |
6510 | int addr_bit; |
6511 | ||
6512 | /* Software watchpoints that aren't watching memory don't have | |
6513 | an address to print. */ | |
6514 | if (b->type == bp_watchpoint && loc->watchpoint_type == -1) | |
6515 | continue; | |
6516 | ||
6517 | addr_bit = gdbarch_addr_bit (loc->gdbarch); | |
a6d9a66e UW |
6518 | if (addr_bit > print_address_bits) |
6519 | print_address_bits = addr_bit; | |
6520 | } | |
6521 | ||
6522 | return print_address_bits; | |
6523 | } | |
0d381245 | 6524 | |
c4093a6a JM |
6525 | struct captured_breakpoint_query_args |
6526 | { | |
6527 | int bnum; | |
6528 | }; | |
c5aa993b | 6529 | |
c4093a6a | 6530 | static int |
2b65245e | 6531 | do_captured_breakpoint_query (struct ui_out *uiout, void *data) |
c4093a6a JM |
6532 | { |
6533 | struct captured_breakpoint_query_args *args = data; | |
52f0bd74 | 6534 | struct breakpoint *b; |
a6d9a66e | 6535 | struct bp_location *dummy_loc = NULL; |
cc59ec59 | 6536 | |
c4093a6a JM |
6537 | ALL_BREAKPOINTS (b) |
6538 | { | |
6539 | if (args->bnum == b->number) | |
c5aa993b | 6540 | { |
12c5a436 | 6541 | print_one_breakpoint (b, &dummy_loc, 0); |
c4093a6a | 6542 | return GDB_RC_OK; |
c5aa993b | 6543 | } |
c4093a6a JM |
6544 | } |
6545 | return GDB_RC_NONE; | |
6546 | } | |
c5aa993b | 6547 | |
c4093a6a | 6548 | enum gdb_rc |
4a64f543 MS |
6549 | gdb_breakpoint_query (struct ui_out *uiout, int bnum, |
6550 | char **error_message) | |
c4093a6a JM |
6551 | { |
6552 | struct captured_breakpoint_query_args args; | |
cc59ec59 | 6553 | |
c4093a6a JM |
6554 | args.bnum = bnum; |
6555 | /* For the moment we don't trust print_one_breakpoint() to not throw | |
4a64f543 | 6556 | an error. */ |
b0b13bb4 DJ |
6557 | if (catch_exceptions_with_msg (uiout, do_captured_breakpoint_query, &args, |
6558 | error_message, RETURN_MASK_ALL) < 0) | |
6559 | return GDB_RC_FAIL; | |
6560 | else | |
6561 | return GDB_RC_OK; | |
c4093a6a | 6562 | } |
c5aa993b | 6563 | |
09d682a4 TT |
6564 | /* Return true if this breakpoint was set by the user, false if it is |
6565 | internal or momentary. */ | |
6566 | ||
6567 | int | |
6568 | user_breakpoint_p (struct breakpoint *b) | |
6569 | { | |
46c6471b | 6570 | return b->number > 0; |
09d682a4 TT |
6571 | } |
6572 | ||
7f3b0473 | 6573 | /* Print information on user settable breakpoint (watchpoint, etc) |
d77f58be SS |
6574 | number BNUM. If BNUM is -1 print all user-settable breakpoints. |
6575 | If ALLFLAG is non-zero, include non-user-settable breakpoints. If | |
6576 | FILTER is non-NULL, call it on each breakpoint and only include the | |
6577 | ones for which it returns non-zero. Return the total number of | |
6578 | breakpoints listed. */ | |
c906108c | 6579 | |
d77f58be | 6580 | static int |
e5a67952 | 6581 | breakpoint_1 (char *args, int allflag, |
4a64f543 | 6582 | int (*filter) (const struct breakpoint *)) |
c4093a6a | 6583 | { |
52f0bd74 | 6584 | struct breakpoint *b; |
a6d9a66e | 6585 | struct bp_location *last_loc = NULL; |
7f3b0473 | 6586 | int nr_printable_breakpoints; |
3b31d625 | 6587 | struct cleanup *bkpttbl_chain; |
79a45b7d | 6588 | struct value_print_options opts; |
a6d9a66e | 6589 | int print_address_bits = 0; |
269b11a2 | 6590 | int print_type_col_width = 14; |
79a45e25 | 6591 | struct ui_out *uiout = current_uiout; |
269b11a2 | 6592 | |
79a45b7d TT |
6593 | get_user_print_options (&opts); |
6594 | ||
4a64f543 MS |
6595 | /* Compute the number of rows in the table, as well as the size |
6596 | required for address fields. */ | |
7f3b0473 AC |
6597 | nr_printable_breakpoints = 0; |
6598 | ALL_BREAKPOINTS (b) | |
e5a67952 MS |
6599 | { |
6600 | /* If we have a filter, only list the breakpoints it accepts. */ | |
6601 | if (filter && !filter (b)) | |
6602 | continue; | |
6603 | ||
6604 | /* If we have an "args" string, it is a list of breakpoints to | |
6605 | accept. Skip the others. */ | |
6606 | if (args != NULL && *args != '\0') | |
6607 | { | |
6608 | if (allflag && parse_and_eval_long (args) != b->number) | |
6609 | continue; | |
6610 | if (!allflag && !number_is_in_list (args, b->number)) | |
6611 | continue; | |
6612 | } | |
269b11a2 | 6613 | |
e5a67952 MS |
6614 | if (allflag || user_breakpoint_p (b)) |
6615 | { | |
6616 | int addr_bit, type_len; | |
a6d9a66e | 6617 | |
e5a67952 MS |
6618 | addr_bit = breakpoint_address_bits (b); |
6619 | if (addr_bit > print_address_bits) | |
6620 | print_address_bits = addr_bit; | |
269b11a2 | 6621 | |
e5a67952 MS |
6622 | type_len = strlen (bptype_string (b->type)); |
6623 | if (type_len > print_type_col_width) | |
6624 | print_type_col_width = type_len; | |
6625 | ||
6626 | nr_printable_breakpoints++; | |
6627 | } | |
6628 | } | |
7f3b0473 | 6629 | |
79a45b7d | 6630 | if (opts.addressprint) |
3b31d625 | 6631 | bkpttbl_chain |
3e43a32a MS |
6632 | = make_cleanup_ui_out_table_begin_end (uiout, 6, |
6633 | nr_printable_breakpoints, | |
3b31d625 | 6634 | "BreakpointTable"); |
8b93c638 | 6635 | else |
3b31d625 | 6636 | bkpttbl_chain |
3e43a32a MS |
6637 | = make_cleanup_ui_out_table_begin_end (uiout, 5, |
6638 | nr_printable_breakpoints, | |
3b31d625 | 6639 | "BreakpointTable"); |
8b93c638 | 6640 | |
7f3b0473 | 6641 | if (nr_printable_breakpoints > 0) |
d7faa9e7 AC |
6642 | annotate_breakpoints_headers (); |
6643 | if (nr_printable_breakpoints > 0) | |
6644 | annotate_field (0); | |
4a64f543 | 6645 | ui_out_table_header (uiout, 7, ui_left, "number", "Num"); /* 1 */ |
d7faa9e7 AC |
6646 | if (nr_printable_breakpoints > 0) |
6647 | annotate_field (1); | |
269b11a2 | 6648 | ui_out_table_header (uiout, print_type_col_width, ui_left, |
4a64f543 | 6649 | "type", "Type"); /* 2 */ |
d7faa9e7 AC |
6650 | if (nr_printable_breakpoints > 0) |
6651 | annotate_field (2); | |
4a64f543 | 6652 | ui_out_table_header (uiout, 4, ui_left, "disp", "Disp"); /* 3 */ |
d7faa9e7 AC |
6653 | if (nr_printable_breakpoints > 0) |
6654 | annotate_field (3); | |
54e52265 | 6655 | ui_out_table_header (uiout, 3, ui_left, "enabled", "Enb"); /* 4 */ |
79a45b7d | 6656 | if (opts.addressprint) |
e5a67952 MS |
6657 | { |
6658 | if (nr_printable_breakpoints > 0) | |
6659 | annotate_field (4); | |
6660 | if (print_address_bits <= 32) | |
6661 | ui_out_table_header (uiout, 10, ui_left, | |
6662 | "addr", "Address"); /* 5 */ | |
6663 | else | |
6664 | ui_out_table_header (uiout, 18, ui_left, | |
6665 | "addr", "Address"); /* 5 */ | |
6666 | } | |
d7faa9e7 AC |
6667 | if (nr_printable_breakpoints > 0) |
6668 | annotate_field (5); | |
6669 | ui_out_table_header (uiout, 40, ui_noalign, "what", "What"); /* 6 */ | |
6670 | ui_out_table_body (uiout); | |
6671 | if (nr_printable_breakpoints > 0) | |
6672 | annotate_breakpoints_table (); | |
7f3b0473 | 6673 | |
c4093a6a | 6674 | ALL_BREAKPOINTS (b) |
e5a67952 MS |
6675 | { |
6676 | QUIT; | |
6677 | /* If we have a filter, only list the breakpoints it accepts. */ | |
6678 | if (filter && !filter (b)) | |
6679 | continue; | |
6680 | ||
6681 | /* If we have an "args" string, it is a list of breakpoints to | |
6682 | accept. Skip the others. */ | |
6683 | ||
6684 | if (args != NULL && *args != '\0') | |
6685 | { | |
6686 | if (allflag) /* maintenance info breakpoint */ | |
6687 | { | |
6688 | if (parse_and_eval_long (args) != b->number) | |
6689 | continue; | |
6690 | } | |
6691 | else /* all others */ | |
6692 | { | |
6693 | if (!number_is_in_list (args, b->number)) | |
6694 | continue; | |
6695 | } | |
6696 | } | |
6697 | /* We only print out user settable breakpoints unless the | |
6698 | allflag is set. */ | |
6699 | if (allflag || user_breakpoint_p (b)) | |
12c5a436 | 6700 | print_one_breakpoint (b, &last_loc, allflag); |
e5a67952 MS |
6701 | } |
6702 | ||
3b31d625 | 6703 | do_cleanups (bkpttbl_chain); |
698384cd | 6704 | |
7f3b0473 | 6705 | if (nr_printable_breakpoints == 0) |
c906108c | 6706 | { |
4a64f543 MS |
6707 | /* If there's a filter, let the caller decide how to report |
6708 | empty list. */ | |
d77f58be SS |
6709 | if (!filter) |
6710 | { | |
e5a67952 | 6711 | if (args == NULL || *args == '\0') |
d77f58be SS |
6712 | ui_out_message (uiout, 0, "No breakpoints or watchpoints.\n"); |
6713 | else | |
4a64f543 | 6714 | ui_out_message (uiout, 0, |
e5a67952 MS |
6715 | "No breakpoint or watchpoint matching '%s'.\n", |
6716 | args); | |
d77f58be | 6717 | } |
c906108c SS |
6718 | } |
6719 | else | |
c4093a6a | 6720 | { |
a6d9a66e UW |
6721 | if (last_loc && !server_command) |
6722 | set_next_address (last_loc->gdbarch, last_loc->address); | |
c4093a6a | 6723 | } |
c906108c | 6724 | |
4a64f543 | 6725 | /* FIXME? Should this be moved up so that it is only called when |
c4093a6a | 6726 | there have been breakpoints? */ |
c906108c | 6727 | annotate_breakpoints_table_end (); |
d77f58be SS |
6728 | |
6729 | return nr_printable_breakpoints; | |
c906108c SS |
6730 | } |
6731 | ||
ad443146 SS |
6732 | /* Display the value of default-collect in a way that is generally |
6733 | compatible with the breakpoint list. */ | |
6734 | ||
6735 | static void | |
6736 | default_collect_info (void) | |
6737 | { | |
79a45e25 PA |
6738 | struct ui_out *uiout = current_uiout; |
6739 | ||
ad443146 SS |
6740 | /* If it has no value (which is frequently the case), say nothing; a |
6741 | message like "No default-collect." gets in user's face when it's | |
6742 | not wanted. */ | |
6743 | if (!*default_collect) | |
6744 | return; | |
6745 | ||
6746 | /* The following phrase lines up nicely with per-tracepoint collect | |
6747 | actions. */ | |
6748 | ui_out_text (uiout, "default collect "); | |
6749 | ui_out_field_string (uiout, "default-collect", default_collect); | |
6750 | ui_out_text (uiout, " \n"); | |
6751 | } | |
6752 | ||
c906108c | 6753 | static void |
e5a67952 | 6754 | breakpoints_info (char *args, int from_tty) |
c906108c | 6755 | { |
e5a67952 | 6756 | breakpoint_1 (args, 0, NULL); |
ad443146 SS |
6757 | |
6758 | default_collect_info (); | |
d77f58be SS |
6759 | } |
6760 | ||
6761 | static void | |
e5a67952 | 6762 | watchpoints_info (char *args, int from_tty) |
d77f58be | 6763 | { |
e5a67952 | 6764 | int num_printed = breakpoint_1 (args, 0, is_watchpoint); |
79a45e25 | 6765 | struct ui_out *uiout = current_uiout; |
d77f58be SS |
6766 | |
6767 | if (num_printed == 0) | |
6768 | { | |
e5a67952 | 6769 | if (args == NULL || *args == '\0') |
d77f58be SS |
6770 | ui_out_message (uiout, 0, "No watchpoints.\n"); |
6771 | else | |
e5a67952 | 6772 | ui_out_message (uiout, 0, "No watchpoint matching '%s'.\n", args); |
d77f58be | 6773 | } |
c906108c SS |
6774 | } |
6775 | ||
7a292a7a | 6776 | static void |
e5a67952 | 6777 | maintenance_info_breakpoints (char *args, int from_tty) |
c906108c | 6778 | { |
e5a67952 | 6779 | breakpoint_1 (args, 1, NULL); |
ad443146 SS |
6780 | |
6781 | default_collect_info (); | |
c906108c SS |
6782 | } |
6783 | ||
0d381245 | 6784 | static int |
714835d5 | 6785 | breakpoint_has_pc (struct breakpoint *b, |
6c95b8df | 6786 | struct program_space *pspace, |
714835d5 | 6787 | CORE_ADDR pc, struct obj_section *section) |
0d381245 VP |
6788 | { |
6789 | struct bp_location *bl = b->loc; | |
cc59ec59 | 6790 | |
0d381245 VP |
6791 | for (; bl; bl = bl->next) |
6792 | { | |
6c95b8df PA |
6793 | if (bl->pspace == pspace |
6794 | && bl->address == pc | |
0d381245 VP |
6795 | && (!overlay_debugging || bl->section == section)) |
6796 | return 1; | |
6797 | } | |
6798 | return 0; | |
6799 | } | |
6800 | ||
672f9b60 | 6801 | /* Print a message describing any user-breakpoints set at PC. This |
6c95b8df PA |
6802 | concerns with logical breakpoints, so we match program spaces, not |
6803 | address spaces. */ | |
c906108c SS |
6804 | |
6805 | static void | |
6c95b8df PA |
6806 | describe_other_breakpoints (struct gdbarch *gdbarch, |
6807 | struct program_space *pspace, CORE_ADDR pc, | |
5af949e3 | 6808 | struct obj_section *section, int thread) |
c906108c | 6809 | { |
52f0bd74 AC |
6810 | int others = 0; |
6811 | struct breakpoint *b; | |
c906108c SS |
6812 | |
6813 | ALL_BREAKPOINTS (b) | |
672f9b60 KP |
6814 | others += (user_breakpoint_p (b) |
6815 | && breakpoint_has_pc (b, pspace, pc, section)); | |
c906108c SS |
6816 | if (others > 0) |
6817 | { | |
a3f17187 AC |
6818 | if (others == 1) |
6819 | printf_filtered (_("Note: breakpoint ")); | |
6820 | else /* if (others == ???) */ | |
6821 | printf_filtered (_("Note: breakpoints ")); | |
c906108c | 6822 | ALL_BREAKPOINTS (b) |
672f9b60 | 6823 | if (user_breakpoint_p (b) && breakpoint_has_pc (b, pspace, pc, section)) |
0d381245 VP |
6824 | { |
6825 | others--; | |
6826 | printf_filtered ("%d", b->number); | |
6827 | if (b->thread == -1 && thread != -1) | |
6828 | printf_filtered (" (all threads)"); | |
6829 | else if (b->thread != -1) | |
6830 | printf_filtered (" (thread %d)", b->thread); | |
6831 | printf_filtered ("%s%s ", | |
059fb39f | 6832 | ((b->enable_state == bp_disabled |
f8eba3c6 | 6833 | || b->enable_state == bp_call_disabled) |
0d381245 VP |
6834 | ? " (disabled)" |
6835 | : b->enable_state == bp_permanent | |
6836 | ? " (permanent)" | |
6837 | : ""), | |
6838 | (others > 1) ? "," | |
6839 | : ((others == 1) ? " and" : "")); | |
6840 | } | |
a3f17187 | 6841 | printf_filtered (_("also set at pc ")); |
5af949e3 | 6842 | fputs_filtered (paddress (gdbarch, pc), gdb_stdout); |
c906108c SS |
6843 | printf_filtered (".\n"); |
6844 | } | |
6845 | } | |
6846 | \f | |
c906108c | 6847 | |
e4f237da KB |
6848 | /* Return true iff it is meaningful to use the address member of |
6849 | BPT. For some breakpoint types, the address member is irrelevant | |
6850 | and it makes no sense to attempt to compare it to other addresses | |
6851 | (or use it for any other purpose either). | |
6852 | ||
4a64f543 MS |
6853 | More specifically, each of the following breakpoint types will |
6854 | always have a zero valued address and we don't want to mark | |
6855 | breakpoints of any of these types to be a duplicate of an actual | |
6856 | breakpoint at address zero: | |
e4f237da KB |
6857 | |
6858 | bp_watchpoint | |
2d134ed3 PA |
6859 | bp_catchpoint |
6860 | ||
6861 | */ | |
e4f237da KB |
6862 | |
6863 | static int | |
6864 | breakpoint_address_is_meaningful (struct breakpoint *bpt) | |
6865 | { | |
6866 | enum bptype type = bpt->type; | |
6867 | ||
2d134ed3 PA |
6868 | return (type != bp_watchpoint && type != bp_catchpoint); |
6869 | } | |
6870 | ||
6871 | /* Assuming LOC1 and LOC2's owners are hardware watchpoints, returns | |
6872 | true if LOC1 and LOC2 represent the same watchpoint location. */ | |
6873 | ||
6874 | static int | |
4a64f543 MS |
6875 | watchpoint_locations_match (struct bp_location *loc1, |
6876 | struct bp_location *loc2) | |
2d134ed3 | 6877 | { |
3a5c3e22 PA |
6878 | struct watchpoint *w1 = (struct watchpoint *) loc1->owner; |
6879 | struct watchpoint *w2 = (struct watchpoint *) loc2->owner; | |
6880 | ||
6881 | /* Both of them must exist. */ | |
6882 | gdb_assert (w1 != NULL); | |
6883 | gdb_assert (w2 != NULL); | |
2bdf28a0 | 6884 | |
4a64f543 MS |
6885 | /* If the target can evaluate the condition expression in hardware, |
6886 | then we we need to insert both watchpoints even if they are at | |
6887 | the same place. Otherwise the watchpoint will only trigger when | |
6888 | the condition of whichever watchpoint was inserted evaluates to | |
6889 | true, not giving a chance for GDB to check the condition of the | |
6890 | other watchpoint. */ | |
3a5c3e22 | 6891 | if ((w1->cond_exp |
4a64f543 MS |
6892 | && target_can_accel_watchpoint_condition (loc1->address, |
6893 | loc1->length, | |
0cf6dd15 | 6894 | loc1->watchpoint_type, |
3a5c3e22 PA |
6895 | w1->cond_exp)) |
6896 | || (w2->cond_exp | |
4a64f543 MS |
6897 | && target_can_accel_watchpoint_condition (loc2->address, |
6898 | loc2->length, | |
0cf6dd15 | 6899 | loc2->watchpoint_type, |
3a5c3e22 | 6900 | w2->cond_exp))) |
0cf6dd15 TJB |
6901 | return 0; |
6902 | ||
85d721b8 PA |
6903 | /* Note that this checks the owner's type, not the location's. In |
6904 | case the target does not support read watchpoints, but does | |
6905 | support access watchpoints, we'll have bp_read_watchpoint | |
6906 | watchpoints with hw_access locations. Those should be considered | |
6907 | duplicates of hw_read locations. The hw_read locations will | |
6908 | become hw_access locations later. */ | |
2d134ed3 PA |
6909 | return (loc1->owner->type == loc2->owner->type |
6910 | && loc1->pspace->aspace == loc2->pspace->aspace | |
6911 | && loc1->address == loc2->address | |
6912 | && loc1->length == loc2->length); | |
e4f237da KB |
6913 | } |
6914 | ||
31e77af2 | 6915 | /* See breakpoint.h. */ |
6c95b8df | 6916 | |
31e77af2 | 6917 | int |
6c95b8df PA |
6918 | breakpoint_address_match (struct address_space *aspace1, CORE_ADDR addr1, |
6919 | struct address_space *aspace2, CORE_ADDR addr2) | |
6920 | { | |
f5656ead | 6921 | return ((gdbarch_has_global_breakpoints (target_gdbarch ()) |
6c95b8df PA |
6922 | || aspace1 == aspace2) |
6923 | && addr1 == addr2); | |
6924 | } | |
6925 | ||
f1310107 TJB |
6926 | /* Returns true if {ASPACE2,ADDR2} falls within the range determined by |
6927 | {ASPACE1,ADDR1,LEN1}. In most targets, this can only be true if ASPACE1 | |
6928 | matches ASPACE2. On targets that have global breakpoints, the address | |
6929 | space doesn't really matter. */ | |
6930 | ||
6931 | static int | |
6932 | breakpoint_address_match_range (struct address_space *aspace1, CORE_ADDR addr1, | |
6933 | int len1, struct address_space *aspace2, | |
6934 | CORE_ADDR addr2) | |
6935 | { | |
f5656ead | 6936 | return ((gdbarch_has_global_breakpoints (target_gdbarch ()) |
f1310107 TJB |
6937 | || aspace1 == aspace2) |
6938 | && addr2 >= addr1 && addr2 < addr1 + len1); | |
6939 | } | |
6940 | ||
6941 | /* Returns true if {ASPACE,ADDR} matches the breakpoint BL. BL may be | |
6942 | a ranged breakpoint. In most targets, a match happens only if ASPACE | |
6943 | matches the breakpoint's address space. On targets that have global | |
6944 | breakpoints, the address space doesn't really matter. */ | |
6945 | ||
6946 | static int | |
6947 | breakpoint_location_address_match (struct bp_location *bl, | |
6948 | struct address_space *aspace, | |
6949 | CORE_ADDR addr) | |
6950 | { | |
6951 | return (breakpoint_address_match (bl->pspace->aspace, bl->address, | |
6952 | aspace, addr) | |
6953 | || (bl->length | |
6954 | && breakpoint_address_match_range (bl->pspace->aspace, | |
6955 | bl->address, bl->length, | |
6956 | aspace, addr))); | |
6957 | } | |
6958 | ||
1e4d1764 YQ |
6959 | /* If LOC1 and LOC2's owners are not tracepoints, returns false directly. |
6960 | Then, if LOC1 and LOC2 represent the same tracepoint location, returns | |
6961 | true, otherwise returns false. */ | |
6962 | ||
6963 | static int | |
6964 | tracepoint_locations_match (struct bp_location *loc1, | |
6965 | struct bp_location *loc2) | |
6966 | { | |
6967 | if (is_tracepoint (loc1->owner) && is_tracepoint (loc2->owner)) | |
6968 | /* Since tracepoint locations are never duplicated with others', tracepoint | |
6969 | locations at the same address of different tracepoints are regarded as | |
6970 | different locations. */ | |
6971 | return (loc1->address == loc2->address && loc1->owner == loc2->owner); | |
6972 | else | |
6973 | return 0; | |
6974 | } | |
6975 | ||
2d134ed3 PA |
6976 | /* Assuming LOC1 and LOC2's types' have meaningful target addresses |
6977 | (breakpoint_address_is_meaningful), returns true if LOC1 and LOC2 | |
6978 | represent the same location. */ | |
6979 | ||
6980 | static int | |
4a64f543 MS |
6981 | breakpoint_locations_match (struct bp_location *loc1, |
6982 | struct bp_location *loc2) | |
2d134ed3 | 6983 | { |
2bdf28a0 JK |
6984 | int hw_point1, hw_point2; |
6985 | ||
6986 | /* Both of them must not be in moribund_locations. */ | |
6987 | gdb_assert (loc1->owner != NULL); | |
6988 | gdb_assert (loc2->owner != NULL); | |
6989 | ||
6990 | hw_point1 = is_hardware_watchpoint (loc1->owner); | |
6991 | hw_point2 = is_hardware_watchpoint (loc2->owner); | |
2d134ed3 PA |
6992 | |
6993 | if (hw_point1 != hw_point2) | |
6994 | return 0; | |
6995 | else if (hw_point1) | |
6996 | return watchpoint_locations_match (loc1, loc2); | |
1e4d1764 YQ |
6997 | else if (is_tracepoint (loc1->owner) || is_tracepoint (loc2->owner)) |
6998 | return tracepoint_locations_match (loc1, loc2); | |
2d134ed3 | 6999 | else |
f1310107 TJB |
7000 | /* We compare bp_location.length in order to cover ranged breakpoints. */ |
7001 | return (breakpoint_address_match (loc1->pspace->aspace, loc1->address, | |
7002 | loc2->pspace->aspace, loc2->address) | |
7003 | && loc1->length == loc2->length); | |
2d134ed3 PA |
7004 | } |
7005 | ||
76897487 KB |
7006 | static void |
7007 | breakpoint_adjustment_warning (CORE_ADDR from_addr, CORE_ADDR to_addr, | |
7008 | int bnum, int have_bnum) | |
7009 | { | |
f63fbe86 MS |
7010 | /* The longest string possibly returned by hex_string_custom |
7011 | is 50 chars. These must be at least that big for safety. */ | |
7012 | char astr1[64]; | |
7013 | char astr2[64]; | |
76897487 | 7014 | |
bb599908 PH |
7015 | strcpy (astr1, hex_string_custom ((unsigned long) from_addr, 8)); |
7016 | strcpy (astr2, hex_string_custom ((unsigned long) to_addr, 8)); | |
76897487 | 7017 | if (have_bnum) |
8a3fe4f8 | 7018 | warning (_("Breakpoint %d address previously adjusted from %s to %s."), |
76897487 KB |
7019 | bnum, astr1, astr2); |
7020 | else | |
8a3fe4f8 | 7021 | warning (_("Breakpoint address adjusted from %s to %s."), astr1, astr2); |
76897487 KB |
7022 | } |
7023 | ||
4a64f543 MS |
7024 | /* Adjust a breakpoint's address to account for architectural |
7025 | constraints on breakpoint placement. Return the adjusted address. | |
7026 | Note: Very few targets require this kind of adjustment. For most | |
7027 | targets, this function is simply the identity function. */ | |
76897487 KB |
7028 | |
7029 | static CORE_ADDR | |
a6d9a66e UW |
7030 | adjust_breakpoint_address (struct gdbarch *gdbarch, |
7031 | CORE_ADDR bpaddr, enum bptype bptype) | |
76897487 | 7032 | { |
a6d9a66e | 7033 | if (!gdbarch_adjust_breakpoint_address_p (gdbarch)) |
76897487 KB |
7034 | { |
7035 | /* Very few targets need any kind of breakpoint adjustment. */ | |
7036 | return bpaddr; | |
7037 | } | |
88f7da05 KB |
7038 | else if (bptype == bp_watchpoint |
7039 | || bptype == bp_hardware_watchpoint | |
7040 | || bptype == bp_read_watchpoint | |
7041 | || bptype == bp_access_watchpoint | |
fe798b75 | 7042 | || bptype == bp_catchpoint) |
88f7da05 KB |
7043 | { |
7044 | /* Watchpoints and the various bp_catch_* eventpoints should not | |
7045 | have their addresses modified. */ | |
7046 | return bpaddr; | |
7047 | } | |
76897487 KB |
7048 | else |
7049 | { | |
7050 | CORE_ADDR adjusted_bpaddr; | |
7051 | ||
7052 | /* Some targets have architectural constraints on the placement | |
7053 | of breakpoint instructions. Obtain the adjusted address. */ | |
a6d9a66e | 7054 | adjusted_bpaddr = gdbarch_adjust_breakpoint_address (gdbarch, bpaddr); |
76897487 KB |
7055 | |
7056 | /* An adjusted breakpoint address can significantly alter | |
7057 | a user's expectations. Print a warning if an adjustment | |
7058 | is required. */ | |
7059 | if (adjusted_bpaddr != bpaddr) | |
7060 | breakpoint_adjustment_warning (bpaddr, adjusted_bpaddr, 0, 0); | |
7061 | ||
7062 | return adjusted_bpaddr; | |
7063 | } | |
7064 | } | |
7065 | ||
28010a5d PA |
7066 | void |
7067 | init_bp_location (struct bp_location *loc, const struct bp_location_ops *ops, | |
7068 | struct breakpoint *owner) | |
7cc221ef | 7069 | { |
7cc221ef DJ |
7070 | memset (loc, 0, sizeof (*loc)); |
7071 | ||
348d480f PA |
7072 | gdb_assert (ops != NULL); |
7073 | ||
28010a5d PA |
7074 | loc->ops = ops; |
7075 | loc->owner = owner; | |
511a6cd4 | 7076 | loc->cond = NULL; |
b775012e | 7077 | loc->cond_bytecode = NULL; |
0d381245 VP |
7078 | loc->shlib_disabled = 0; |
7079 | loc->enabled = 1; | |
e049a4b5 | 7080 | |
28010a5d | 7081 | switch (owner->type) |
e049a4b5 DJ |
7082 | { |
7083 | case bp_breakpoint: | |
7084 | case bp_until: | |
7085 | case bp_finish: | |
7086 | case bp_longjmp: | |
7087 | case bp_longjmp_resume: | |
e2e4d78b | 7088 | case bp_longjmp_call_dummy: |
186c406b TT |
7089 | case bp_exception: |
7090 | case bp_exception_resume: | |
e049a4b5 | 7091 | case bp_step_resume: |
2c03e5be | 7092 | case bp_hp_step_resume: |
e049a4b5 DJ |
7093 | case bp_watchpoint_scope: |
7094 | case bp_call_dummy: | |
aa7d318d | 7095 | case bp_std_terminate: |
e049a4b5 DJ |
7096 | case bp_shlib_event: |
7097 | case bp_thread_event: | |
7098 | case bp_overlay_event: | |
4efc6507 | 7099 | case bp_jit_event: |
0fd8e87f | 7100 | case bp_longjmp_master: |
aa7d318d | 7101 | case bp_std_terminate_master: |
186c406b | 7102 | case bp_exception_master: |
0e30163f JK |
7103 | case bp_gnu_ifunc_resolver: |
7104 | case bp_gnu_ifunc_resolver_return: | |
e7e0cddf | 7105 | case bp_dprintf: |
e049a4b5 | 7106 | loc->loc_type = bp_loc_software_breakpoint; |
b775012e | 7107 | mark_breakpoint_location_modified (loc); |
e049a4b5 DJ |
7108 | break; |
7109 | case bp_hardware_breakpoint: | |
7110 | loc->loc_type = bp_loc_hardware_breakpoint; | |
b775012e | 7111 | mark_breakpoint_location_modified (loc); |
e049a4b5 DJ |
7112 | break; |
7113 | case bp_hardware_watchpoint: | |
7114 | case bp_read_watchpoint: | |
7115 | case bp_access_watchpoint: | |
7116 | loc->loc_type = bp_loc_hardware_watchpoint; | |
7117 | break; | |
7118 | case bp_watchpoint: | |
ce78b96d | 7119 | case bp_catchpoint: |
15c3d785 PA |
7120 | case bp_tracepoint: |
7121 | case bp_fast_tracepoint: | |
0fb4aa4b | 7122 | case bp_static_tracepoint: |
e049a4b5 DJ |
7123 | loc->loc_type = bp_loc_other; |
7124 | break; | |
7125 | default: | |
e2e0b3e5 | 7126 | internal_error (__FILE__, __LINE__, _("unknown breakpoint type")); |
e049a4b5 DJ |
7127 | } |
7128 | ||
f431efe5 | 7129 | loc->refc = 1; |
28010a5d PA |
7130 | } |
7131 | ||
7132 | /* Allocate a struct bp_location. */ | |
7133 | ||
7134 | static struct bp_location * | |
7135 | allocate_bp_location (struct breakpoint *bpt) | |
7136 | { | |
348d480f PA |
7137 | return bpt->ops->allocate_location (bpt); |
7138 | } | |
7cc221ef | 7139 | |
f431efe5 PA |
7140 | static void |
7141 | free_bp_location (struct bp_location *loc) | |
fe3f5fa8 | 7142 | { |
348d480f | 7143 | loc->ops->dtor (loc); |
fe3f5fa8 VP |
7144 | xfree (loc); |
7145 | } | |
7146 | ||
f431efe5 PA |
7147 | /* Increment reference count. */ |
7148 | ||
7149 | static void | |
7150 | incref_bp_location (struct bp_location *bl) | |
7151 | { | |
7152 | ++bl->refc; | |
7153 | } | |
7154 | ||
7155 | /* Decrement reference count. If the reference count reaches 0, | |
7156 | destroy the bp_location. Sets *BLP to NULL. */ | |
7157 | ||
7158 | static void | |
7159 | decref_bp_location (struct bp_location **blp) | |
7160 | { | |
0807b50c PA |
7161 | gdb_assert ((*blp)->refc > 0); |
7162 | ||
f431efe5 PA |
7163 | if (--(*blp)->refc == 0) |
7164 | free_bp_location (*blp); | |
7165 | *blp = NULL; | |
7166 | } | |
7167 | ||
346774a9 | 7168 | /* Add breakpoint B at the end of the global breakpoint chain. */ |
c906108c | 7169 | |
346774a9 PA |
7170 | static void |
7171 | add_to_breakpoint_chain (struct breakpoint *b) | |
c906108c | 7172 | { |
346774a9 | 7173 | struct breakpoint *b1; |
c906108c | 7174 | |
346774a9 PA |
7175 | /* Add this breakpoint to the end of the chain so that a list of |
7176 | breakpoints will come out in order of increasing numbers. */ | |
7177 | ||
7178 | b1 = breakpoint_chain; | |
7179 | if (b1 == 0) | |
7180 | breakpoint_chain = b; | |
7181 | else | |
7182 | { | |
7183 | while (b1->next) | |
7184 | b1 = b1->next; | |
7185 | b1->next = b; | |
7186 | } | |
7187 | } | |
7188 | ||
7189 | /* Initializes breakpoint B with type BPTYPE and no locations yet. */ | |
7190 | ||
7191 | static void | |
7192 | init_raw_breakpoint_without_location (struct breakpoint *b, | |
7193 | struct gdbarch *gdbarch, | |
28010a5d | 7194 | enum bptype bptype, |
c0a91b2b | 7195 | const struct breakpoint_ops *ops) |
346774a9 | 7196 | { |
c906108c | 7197 | memset (b, 0, sizeof (*b)); |
2219d63c | 7198 | |
348d480f PA |
7199 | gdb_assert (ops != NULL); |
7200 | ||
28010a5d | 7201 | b->ops = ops; |
4d28f7a8 | 7202 | b->type = bptype; |
a6d9a66e | 7203 | b->gdbarch = gdbarch; |
c906108c SS |
7204 | b->language = current_language->la_language; |
7205 | b->input_radix = input_radix; | |
7206 | b->thread = -1; | |
b5de0fa7 | 7207 | b->enable_state = bp_enabled; |
c906108c SS |
7208 | b->next = 0; |
7209 | b->silent = 0; | |
7210 | b->ignore_count = 0; | |
7211 | b->commands = NULL; | |
818dd999 | 7212 | b->frame_id = null_frame_id; |
0d381245 | 7213 | b->condition_not_parsed = 0; |
84f4c1fe | 7214 | b->py_bp_object = NULL; |
d0fb5eae | 7215 | b->related_breakpoint = b; |
346774a9 PA |
7216 | } |
7217 | ||
7218 | /* Helper to set_raw_breakpoint below. Creates a breakpoint | |
7219 | that has type BPTYPE and has no locations as yet. */ | |
346774a9 PA |
7220 | |
7221 | static struct breakpoint * | |
7222 | set_raw_breakpoint_without_location (struct gdbarch *gdbarch, | |
348d480f | 7223 | enum bptype bptype, |
c0a91b2b | 7224 | const struct breakpoint_ops *ops) |
346774a9 PA |
7225 | { |
7226 | struct breakpoint *b = XNEW (struct breakpoint); | |
7227 | ||
348d480f | 7228 | init_raw_breakpoint_without_location (b, gdbarch, bptype, ops); |
c56053d2 | 7229 | add_to_breakpoint_chain (b); |
0d381245 VP |
7230 | return b; |
7231 | } | |
7232 | ||
0e30163f JK |
7233 | /* Initialize loc->function_name. EXPLICIT_LOC says no indirect function |
7234 | resolutions should be made as the user specified the location explicitly | |
7235 | enough. */ | |
7236 | ||
0d381245 | 7237 | static void |
0e30163f | 7238 | set_breakpoint_location_function (struct bp_location *loc, int explicit_loc) |
0d381245 | 7239 | { |
2bdf28a0 JK |
7240 | gdb_assert (loc->owner != NULL); |
7241 | ||
0d381245 | 7242 | if (loc->owner->type == bp_breakpoint |
1042e4c0 | 7243 | || loc->owner->type == bp_hardware_breakpoint |
d77f58be | 7244 | || is_tracepoint (loc->owner)) |
0d381245 | 7245 | { |
0e30163f | 7246 | int is_gnu_ifunc; |
2c02bd72 | 7247 | const char *function_name; |
6a3a010b | 7248 | CORE_ADDR func_addr; |
0e30163f | 7249 | |
2c02bd72 | 7250 | find_pc_partial_function_gnu_ifunc (loc->address, &function_name, |
6a3a010b | 7251 | &func_addr, NULL, &is_gnu_ifunc); |
0e30163f JK |
7252 | |
7253 | if (is_gnu_ifunc && !explicit_loc) | |
7254 | { | |
7255 | struct breakpoint *b = loc->owner; | |
7256 | ||
7257 | gdb_assert (loc->pspace == current_program_space); | |
2c02bd72 | 7258 | if (gnu_ifunc_resolve_name (function_name, |
0e30163f JK |
7259 | &loc->requested_address)) |
7260 | { | |
7261 | /* Recalculate ADDRESS based on new REQUESTED_ADDRESS. */ | |
7262 | loc->address = adjust_breakpoint_address (loc->gdbarch, | |
7263 | loc->requested_address, | |
7264 | b->type); | |
7265 | } | |
7266 | else if (b->type == bp_breakpoint && b->loc == loc | |
7267 | && loc->next == NULL && b->related_breakpoint == b) | |
7268 | { | |
7269 | /* Create only the whole new breakpoint of this type but do not | |
7270 | mess more complicated breakpoints with multiple locations. */ | |
7271 | b->type = bp_gnu_ifunc_resolver; | |
6a3a010b MR |
7272 | /* Remember the resolver's address for use by the return |
7273 | breakpoint. */ | |
7274 | loc->related_address = func_addr; | |
0e30163f JK |
7275 | } |
7276 | } | |
7277 | ||
2c02bd72 DE |
7278 | if (function_name) |
7279 | loc->function_name = xstrdup (function_name); | |
0d381245 VP |
7280 | } |
7281 | } | |
7282 | ||
a6d9a66e | 7283 | /* Attempt to determine architecture of location identified by SAL. */ |
1bfeeb0f | 7284 | struct gdbarch * |
a6d9a66e UW |
7285 | get_sal_arch (struct symtab_and_line sal) |
7286 | { | |
7287 | if (sal.section) | |
7288 | return get_objfile_arch (sal.section->objfile); | |
7289 | if (sal.symtab) | |
7290 | return get_objfile_arch (sal.symtab->objfile); | |
7291 | ||
7292 | return NULL; | |
7293 | } | |
7294 | ||
346774a9 PA |
7295 | /* Low level routine for partially initializing a breakpoint of type |
7296 | BPTYPE. The newly created breakpoint's address, section, source | |
c56053d2 | 7297 | file name, and line number are provided by SAL. |
0d381245 VP |
7298 | |
7299 | It is expected that the caller will complete the initialization of | |
7300 | the newly created breakpoint struct as well as output any status | |
c56053d2 | 7301 | information regarding the creation of a new breakpoint. */ |
0d381245 | 7302 | |
346774a9 PA |
7303 | static void |
7304 | init_raw_breakpoint (struct breakpoint *b, struct gdbarch *gdbarch, | |
28010a5d | 7305 | struct symtab_and_line sal, enum bptype bptype, |
c0a91b2b | 7306 | const struct breakpoint_ops *ops) |
0d381245 | 7307 | { |
28010a5d | 7308 | init_raw_breakpoint_without_location (b, gdbarch, bptype, ops); |
346774a9 | 7309 | |
3742cc8b | 7310 | add_location_to_breakpoint (b, &sal); |
0d381245 | 7311 | |
6c95b8df PA |
7312 | if (bptype != bp_catchpoint) |
7313 | gdb_assert (sal.pspace != NULL); | |
7314 | ||
f8eba3c6 TT |
7315 | /* Store the program space that was used to set the breakpoint, |
7316 | except for ordinary breakpoints, which are independent of the | |
7317 | program space. */ | |
7318 | if (bptype != bp_breakpoint && bptype != bp_hardware_breakpoint) | |
7319 | b->pspace = sal.pspace; | |
346774a9 | 7320 | } |
c906108c | 7321 | |
346774a9 PA |
7322 | /* set_raw_breakpoint is a low level routine for allocating and |
7323 | partially initializing a breakpoint of type BPTYPE. The newly | |
7324 | created breakpoint's address, section, source file name, and line | |
7325 | number are provided by SAL. The newly created and partially | |
7326 | initialized breakpoint is added to the breakpoint chain and | |
7327 | is also returned as the value of this function. | |
7328 | ||
7329 | It is expected that the caller will complete the initialization of | |
7330 | the newly created breakpoint struct as well as output any status | |
7331 | information regarding the creation of a new breakpoint. In | |
7332 | particular, set_raw_breakpoint does NOT set the breakpoint | |
7333 | number! Care should be taken to not allow an error to occur | |
7334 | prior to completing the initialization of the breakpoint. If this | |
7335 | should happen, a bogus breakpoint will be left on the chain. */ | |
7336 | ||
7337 | struct breakpoint * | |
7338 | set_raw_breakpoint (struct gdbarch *gdbarch, | |
348d480f | 7339 | struct symtab_and_line sal, enum bptype bptype, |
c0a91b2b | 7340 | const struct breakpoint_ops *ops) |
346774a9 PA |
7341 | { |
7342 | struct breakpoint *b = XNEW (struct breakpoint); | |
7343 | ||
348d480f | 7344 | init_raw_breakpoint (b, gdbarch, sal, bptype, ops); |
c56053d2 | 7345 | add_to_breakpoint_chain (b); |
c906108c SS |
7346 | return b; |
7347 | } | |
7348 | ||
c2c6d25f JM |
7349 | |
7350 | /* Note that the breakpoint object B describes a permanent breakpoint | |
7351 | instruction, hard-wired into the inferior's code. */ | |
7352 | void | |
7353 | make_breakpoint_permanent (struct breakpoint *b) | |
7354 | { | |
0d381245 | 7355 | struct bp_location *bl; |
cc59ec59 | 7356 | |
b5de0fa7 | 7357 | b->enable_state = bp_permanent; |
c2c6d25f | 7358 | |
4a64f543 MS |
7359 | /* By definition, permanent breakpoints are already present in the |
7360 | code. Mark all locations as inserted. For now, | |
7361 | make_breakpoint_permanent is called in just one place, so it's | |
7362 | hard to say if it's reasonable to have permanent breakpoint with | |
e5dd4106 | 7363 | multiple locations or not, but it's easy to implement. */ |
0d381245 VP |
7364 | for (bl = b->loc; bl; bl = bl->next) |
7365 | bl->inserted = 1; | |
c2c6d25f JM |
7366 | } |
7367 | ||
53a5351d | 7368 | /* Call this routine when stepping and nexting to enable a breakpoint |
186c406b TT |
7369 | if we do a longjmp() or 'throw' in TP. FRAME is the frame which |
7370 | initiated the operation. */ | |
c906108c SS |
7371 | |
7372 | void | |
186c406b | 7373 | set_longjmp_breakpoint (struct thread_info *tp, struct frame_id frame) |
c906108c | 7374 | { |
35df4500 | 7375 | struct breakpoint *b, *b_tmp; |
186c406b | 7376 | int thread = tp->num; |
0fd8e87f UW |
7377 | |
7378 | /* To avoid having to rescan all objfile symbols at every step, | |
7379 | we maintain a list of continually-inserted but always disabled | |
7380 | longjmp "master" breakpoints. Here, we simply create momentary | |
7381 | clones of those and enable them for the requested thread. */ | |
35df4500 | 7382 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
6c95b8df | 7383 | if (b->pspace == current_program_space |
186c406b TT |
7384 | && (b->type == bp_longjmp_master |
7385 | || b->type == bp_exception_master)) | |
0fd8e87f | 7386 | { |
06edf0c0 PA |
7387 | enum bptype type = b->type == bp_longjmp_master ? bp_longjmp : bp_exception; |
7388 | struct breakpoint *clone; | |
cc59ec59 | 7389 | |
e2e4d78b JK |
7390 | /* longjmp_breakpoint_ops ensures INITIATING_FRAME is cleared again |
7391 | after their removal. */ | |
06edf0c0 | 7392 | clone = momentary_breakpoint_from_master (b, type, |
e2e4d78b | 7393 | &longjmp_breakpoint_ops); |
0fd8e87f UW |
7394 | clone->thread = thread; |
7395 | } | |
186c406b TT |
7396 | |
7397 | tp->initiating_frame = frame; | |
c906108c SS |
7398 | } |
7399 | ||
611c83ae | 7400 | /* Delete all longjmp breakpoints from THREAD. */ |
c906108c | 7401 | void |
611c83ae | 7402 | delete_longjmp_breakpoint (int thread) |
c906108c | 7403 | { |
35df4500 | 7404 | struct breakpoint *b, *b_tmp; |
c906108c | 7405 | |
35df4500 | 7406 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
186c406b | 7407 | if (b->type == bp_longjmp || b->type == bp_exception) |
611c83ae PA |
7408 | { |
7409 | if (b->thread == thread) | |
7410 | delete_breakpoint (b); | |
7411 | } | |
c906108c SS |
7412 | } |
7413 | ||
f59f708a PA |
7414 | void |
7415 | delete_longjmp_breakpoint_at_next_stop (int thread) | |
7416 | { | |
7417 | struct breakpoint *b, *b_tmp; | |
7418 | ||
7419 | ALL_BREAKPOINTS_SAFE (b, b_tmp) | |
7420 | if (b->type == bp_longjmp || b->type == bp_exception) | |
7421 | { | |
7422 | if (b->thread == thread) | |
7423 | b->disposition = disp_del_at_next_stop; | |
7424 | } | |
7425 | } | |
7426 | ||
e2e4d78b JK |
7427 | /* Place breakpoints of type bp_longjmp_call_dummy to catch longjmp for |
7428 | INFERIOR_PTID thread. Chain them all by RELATED_BREAKPOINT and return | |
7429 | pointer to any of them. Return NULL if this system cannot place longjmp | |
7430 | breakpoints. */ | |
7431 | ||
7432 | struct breakpoint * | |
7433 | set_longjmp_breakpoint_for_call_dummy (void) | |
7434 | { | |
7435 | struct breakpoint *b, *retval = NULL; | |
7436 | ||
7437 | ALL_BREAKPOINTS (b) | |
7438 | if (b->pspace == current_program_space && b->type == bp_longjmp_master) | |
7439 | { | |
7440 | struct breakpoint *new_b; | |
7441 | ||
7442 | new_b = momentary_breakpoint_from_master (b, bp_longjmp_call_dummy, | |
7443 | &momentary_breakpoint_ops); | |
7444 | new_b->thread = pid_to_thread_id (inferior_ptid); | |
7445 | ||
7446 | /* Link NEW_B into the chain of RETVAL breakpoints. */ | |
7447 | ||
7448 | gdb_assert (new_b->related_breakpoint == new_b); | |
7449 | if (retval == NULL) | |
7450 | retval = new_b; | |
7451 | new_b->related_breakpoint = retval; | |
7452 | while (retval->related_breakpoint != new_b->related_breakpoint) | |
7453 | retval = retval->related_breakpoint; | |
7454 | retval->related_breakpoint = new_b; | |
7455 | } | |
7456 | ||
7457 | return retval; | |
7458 | } | |
7459 | ||
7460 | /* Verify all existing dummy frames and their associated breakpoints for | |
7461 | THREAD. Remove those which can no longer be found in the current frame | |
7462 | stack. | |
7463 | ||
7464 | You should call this function only at places where it is safe to currently | |
7465 | unwind the whole stack. Failed stack unwind would discard live dummy | |
7466 | frames. */ | |
7467 | ||
7468 | void | |
7469 | check_longjmp_breakpoint_for_call_dummy (int thread) | |
7470 | { | |
7471 | struct breakpoint *b, *b_tmp; | |
7472 | ||
7473 | ALL_BREAKPOINTS_SAFE (b, b_tmp) | |
7474 | if (b->type == bp_longjmp_call_dummy && b->thread == thread) | |
7475 | { | |
7476 | struct breakpoint *dummy_b = b->related_breakpoint; | |
7477 | ||
7478 | while (dummy_b != b && dummy_b->type != bp_call_dummy) | |
7479 | dummy_b = dummy_b->related_breakpoint; | |
7480 | if (dummy_b->type != bp_call_dummy | |
7481 | || frame_find_by_id (dummy_b->frame_id) != NULL) | |
7482 | continue; | |
7483 | ||
7484 | dummy_frame_discard (dummy_b->frame_id); | |
7485 | ||
7486 | while (b->related_breakpoint != b) | |
7487 | { | |
7488 | if (b_tmp == b->related_breakpoint) | |
7489 | b_tmp = b->related_breakpoint->next; | |
7490 | delete_breakpoint (b->related_breakpoint); | |
7491 | } | |
7492 | delete_breakpoint (b); | |
7493 | } | |
7494 | } | |
7495 | ||
1900040c MS |
7496 | void |
7497 | enable_overlay_breakpoints (void) | |
7498 | { | |
52f0bd74 | 7499 | struct breakpoint *b; |
1900040c MS |
7500 | |
7501 | ALL_BREAKPOINTS (b) | |
7502 | if (b->type == bp_overlay_event) | |
7503 | { | |
7504 | b->enable_state = bp_enabled; | |
b60e7edf | 7505 | update_global_location_list (1); |
c02f5703 | 7506 | overlay_events_enabled = 1; |
1900040c MS |
7507 | } |
7508 | } | |
7509 | ||
7510 | void | |
7511 | disable_overlay_breakpoints (void) | |
7512 | { | |
52f0bd74 | 7513 | struct breakpoint *b; |
1900040c MS |
7514 | |
7515 | ALL_BREAKPOINTS (b) | |
7516 | if (b->type == bp_overlay_event) | |
7517 | { | |
7518 | b->enable_state = bp_disabled; | |
b60e7edf | 7519 | update_global_location_list (0); |
c02f5703 | 7520 | overlay_events_enabled = 0; |
1900040c MS |
7521 | } |
7522 | } | |
7523 | ||
aa7d318d TT |
7524 | /* Set an active std::terminate breakpoint for each std::terminate |
7525 | master breakpoint. */ | |
7526 | void | |
7527 | set_std_terminate_breakpoint (void) | |
7528 | { | |
35df4500 | 7529 | struct breakpoint *b, *b_tmp; |
aa7d318d | 7530 | |
35df4500 | 7531 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
aa7d318d TT |
7532 | if (b->pspace == current_program_space |
7533 | && b->type == bp_std_terminate_master) | |
7534 | { | |
06edf0c0 PA |
7535 | momentary_breakpoint_from_master (b, bp_std_terminate, |
7536 | &momentary_breakpoint_ops); | |
aa7d318d TT |
7537 | } |
7538 | } | |
7539 | ||
7540 | /* Delete all the std::terminate breakpoints. */ | |
7541 | void | |
7542 | delete_std_terminate_breakpoint (void) | |
7543 | { | |
35df4500 | 7544 | struct breakpoint *b, *b_tmp; |
aa7d318d | 7545 | |
35df4500 | 7546 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
aa7d318d TT |
7547 | if (b->type == bp_std_terminate) |
7548 | delete_breakpoint (b); | |
7549 | } | |
7550 | ||
c4093a6a | 7551 | struct breakpoint * |
a6d9a66e | 7552 | create_thread_event_breakpoint (struct gdbarch *gdbarch, CORE_ADDR address) |
c4093a6a JM |
7553 | { |
7554 | struct breakpoint *b; | |
c4093a6a | 7555 | |
06edf0c0 PA |
7556 | b = create_internal_breakpoint (gdbarch, address, bp_thread_event, |
7557 | &internal_breakpoint_ops); | |
7558 | ||
b5de0fa7 | 7559 | b->enable_state = bp_enabled; |
c4093a6a | 7560 | /* addr_string has to be used or breakpoint_re_set will delete me. */ |
5af949e3 UW |
7561 | b->addr_string |
7562 | = xstrprintf ("*%s", paddress (b->loc->gdbarch, b->loc->address)); | |
c4093a6a | 7563 | |
b60e7edf | 7564 | update_global_location_list_nothrow (1); |
74960c60 | 7565 | |
c4093a6a JM |
7566 | return b; |
7567 | } | |
7568 | ||
7569 | void | |
7570 | remove_thread_event_breakpoints (void) | |
7571 | { | |
35df4500 | 7572 | struct breakpoint *b, *b_tmp; |
c4093a6a | 7573 | |
35df4500 | 7574 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
6c95b8df PA |
7575 | if (b->type == bp_thread_event |
7576 | && b->loc->pspace == current_program_space) | |
c4093a6a JM |
7577 | delete_breakpoint (b); |
7578 | } | |
7579 | ||
0101ce28 JJ |
7580 | struct lang_and_radix |
7581 | { | |
7582 | enum language lang; | |
7583 | int radix; | |
7584 | }; | |
7585 | ||
4efc6507 DE |
7586 | /* Create a breakpoint for JIT code registration and unregistration. */ |
7587 | ||
7588 | struct breakpoint * | |
7589 | create_jit_event_breakpoint (struct gdbarch *gdbarch, CORE_ADDR address) | |
7590 | { | |
7591 | struct breakpoint *b; | |
7592 | ||
06edf0c0 PA |
7593 | b = create_internal_breakpoint (gdbarch, address, bp_jit_event, |
7594 | &internal_breakpoint_ops); | |
4efc6507 DE |
7595 | update_global_location_list_nothrow (1); |
7596 | return b; | |
7597 | } | |
0101ce28 | 7598 | |
03673fc7 PP |
7599 | /* Remove JIT code registration and unregistration breakpoint(s). */ |
7600 | ||
7601 | void | |
7602 | remove_jit_event_breakpoints (void) | |
7603 | { | |
7604 | struct breakpoint *b, *b_tmp; | |
7605 | ||
7606 | ALL_BREAKPOINTS_SAFE (b, b_tmp) | |
7607 | if (b->type == bp_jit_event | |
7608 | && b->loc->pspace == current_program_space) | |
7609 | delete_breakpoint (b); | |
7610 | } | |
7611 | ||
cae688ec JJ |
7612 | void |
7613 | remove_solib_event_breakpoints (void) | |
7614 | { | |
35df4500 | 7615 | struct breakpoint *b, *b_tmp; |
cae688ec | 7616 | |
35df4500 | 7617 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
6c95b8df PA |
7618 | if (b->type == bp_shlib_event |
7619 | && b->loc->pspace == current_program_space) | |
cae688ec JJ |
7620 | delete_breakpoint (b); |
7621 | } | |
7622 | ||
7623 | struct breakpoint * | |
a6d9a66e | 7624 | create_solib_event_breakpoint (struct gdbarch *gdbarch, CORE_ADDR address) |
cae688ec JJ |
7625 | { |
7626 | struct breakpoint *b; | |
7627 | ||
06edf0c0 PA |
7628 | b = create_internal_breakpoint (gdbarch, address, bp_shlib_event, |
7629 | &internal_breakpoint_ops); | |
b60e7edf | 7630 | update_global_location_list_nothrow (1); |
cae688ec JJ |
7631 | return b; |
7632 | } | |
7633 | ||
7634 | /* Disable any breakpoints that are on code in shared libraries. Only | |
7635 | apply to enabled breakpoints, disabled ones can just stay disabled. */ | |
7636 | ||
7637 | void | |
cb851954 | 7638 | disable_breakpoints_in_shlibs (void) |
cae688ec | 7639 | { |
876fa593 | 7640 | struct bp_location *loc, **locp_tmp; |
cae688ec | 7641 | |
876fa593 | 7642 | ALL_BP_LOCATIONS (loc, locp_tmp) |
cae688ec | 7643 | { |
2bdf28a0 | 7644 | /* ALL_BP_LOCATIONS bp_location has LOC->OWNER always non-NULL. */ |
0d381245 | 7645 | struct breakpoint *b = loc->owner; |
2bdf28a0 | 7646 | |
4a64f543 MS |
7647 | /* We apply the check to all breakpoints, including disabled for |
7648 | those with loc->duplicate set. This is so that when breakpoint | |
7649 | becomes enabled, or the duplicate is removed, gdb will try to | |
7650 | insert all breakpoints. If we don't set shlib_disabled here, | |
7651 | we'll try to insert those breakpoints and fail. */ | |
1042e4c0 | 7652 | if (((b->type == bp_breakpoint) |
508ccb1f | 7653 | || (b->type == bp_jit_event) |
1042e4c0 | 7654 | || (b->type == bp_hardware_breakpoint) |
d77f58be | 7655 | || (is_tracepoint (b))) |
6c95b8df | 7656 | && loc->pspace == current_program_space |
0d381245 | 7657 | && !loc->shlib_disabled |
6c95b8df | 7658 | && solib_name_from_address (loc->pspace, loc->address) |
a77053c2 | 7659 | ) |
0d381245 VP |
7660 | { |
7661 | loc->shlib_disabled = 1; | |
7662 | } | |
cae688ec JJ |
7663 | } |
7664 | } | |
7665 | ||
63644780 NB |
7666 | /* Disable any breakpoints and tracepoints that are in SOLIB upon |
7667 | notification of unloaded_shlib. Only apply to enabled breakpoints, | |
7668 | disabled ones can just stay disabled. */ | |
84acb35a | 7669 | |
75149521 | 7670 | static void |
84acb35a JJ |
7671 | disable_breakpoints_in_unloaded_shlib (struct so_list *solib) |
7672 | { | |
876fa593 | 7673 | struct bp_location *loc, **locp_tmp; |
84acb35a JJ |
7674 | int disabled_shlib_breaks = 0; |
7675 | ||
c86cf029 VP |
7676 | /* SunOS a.out shared libraries are always mapped, so do not |
7677 | disable breakpoints; they will only be reported as unloaded | |
7678 | through clear_solib when GDB discards its shared library | |
7679 | list. See clear_solib for more information. */ | |
7680 | if (exec_bfd != NULL | |
7681 | && bfd_get_flavour (exec_bfd) == bfd_target_aout_flavour) | |
7682 | return; | |
7683 | ||
876fa593 | 7684 | ALL_BP_LOCATIONS (loc, locp_tmp) |
84acb35a | 7685 | { |
2bdf28a0 | 7686 | /* ALL_BP_LOCATIONS bp_location has LOC->OWNER always non-NULL. */ |
0d381245 | 7687 | struct breakpoint *b = loc->owner; |
cc59ec59 | 7688 | |
1e4d1764 | 7689 | if (solib->pspace == loc->pspace |
e2dd7057 | 7690 | && !loc->shlib_disabled |
1e4d1764 YQ |
7691 | && (((b->type == bp_breakpoint |
7692 | || b->type == bp_jit_event | |
7693 | || b->type == bp_hardware_breakpoint) | |
7694 | && (loc->loc_type == bp_loc_hardware_breakpoint | |
7695 | || loc->loc_type == bp_loc_software_breakpoint)) | |
7696 | || is_tracepoint (b)) | |
e2dd7057 | 7697 | && solib_contains_address_p (solib, loc->address)) |
84acb35a | 7698 | { |
e2dd7057 PP |
7699 | loc->shlib_disabled = 1; |
7700 | /* At this point, we cannot rely on remove_breakpoint | |
7701 | succeeding so we must mark the breakpoint as not inserted | |
7702 | to prevent future errors occurring in remove_breakpoints. */ | |
7703 | loc->inserted = 0; | |
8d3788bd VP |
7704 | |
7705 | /* This may cause duplicate notifications for the same breakpoint. */ | |
7706 | observer_notify_breakpoint_modified (b); | |
7707 | ||
e2dd7057 PP |
7708 | if (!disabled_shlib_breaks) |
7709 | { | |
7710 | target_terminal_ours_for_output (); | |
3e43a32a MS |
7711 | warning (_("Temporarily disabling breakpoints " |
7712 | "for unloaded shared library \"%s\""), | |
e2dd7057 | 7713 | solib->so_name); |
84acb35a | 7714 | } |
e2dd7057 | 7715 | disabled_shlib_breaks = 1; |
84acb35a JJ |
7716 | } |
7717 | } | |
84acb35a JJ |
7718 | } |
7719 | ||
63644780 NB |
7720 | /* Disable any breakpoints and tracepoints in OBJFILE upon |
7721 | notification of free_objfile. Only apply to enabled breakpoints, | |
7722 | disabled ones can just stay disabled. */ | |
7723 | ||
7724 | static void | |
7725 | disable_breakpoints_in_freed_objfile (struct objfile *objfile) | |
7726 | { | |
7727 | struct breakpoint *b; | |
7728 | ||
7729 | if (objfile == NULL) | |
7730 | return; | |
7731 | ||
08351840 PA |
7732 | /* OBJF_USERLOADED are dynamic modules manually managed by the user |
7733 | with add-symbol-file/remove-symbol-file. Similarly to how | |
7734 | breakpoints in shared libraries are handled in response to | |
7735 | "nosharedlibrary", mark breakpoints in OBJF_USERLOADED modules | |
7736 | shlib_disabled so they end up uninserted on the next global | |
7737 | location list update. Shared libraries not loaded by the user | |
7738 | aren't handled here -- they're already handled in | |
7739 | disable_breakpoints_in_unloaded_shlib, called by solib.c's | |
7740 | solib_unloaded observer. We skip objfiles that are not | |
7741 | OBJF_USERLOADED (nor OBJF_SHARED) as those aren't considered | |
7742 | dynamic objects (e.g. the main objfile). */ | |
7743 | if ((objfile->flags & OBJF_USERLOADED) == 0) | |
63644780 NB |
7744 | return; |
7745 | ||
7746 | ALL_BREAKPOINTS (b) | |
7747 | { | |
7748 | struct bp_location *loc; | |
7749 | int bp_modified = 0; | |
7750 | ||
7751 | if (!is_breakpoint (b) && !is_tracepoint (b)) | |
7752 | continue; | |
7753 | ||
7754 | for (loc = b->loc; loc != NULL; loc = loc->next) | |
7755 | { | |
7756 | CORE_ADDR loc_addr = loc->address; | |
7757 | ||
7758 | if (loc->loc_type != bp_loc_hardware_breakpoint | |
7759 | && loc->loc_type != bp_loc_software_breakpoint) | |
7760 | continue; | |
7761 | ||
7762 | if (loc->shlib_disabled != 0) | |
7763 | continue; | |
7764 | ||
7765 | if (objfile->pspace != loc->pspace) | |
7766 | continue; | |
7767 | ||
7768 | if (loc->loc_type != bp_loc_hardware_breakpoint | |
7769 | && loc->loc_type != bp_loc_software_breakpoint) | |
7770 | continue; | |
7771 | ||
7772 | if (is_addr_in_objfile (loc_addr, objfile)) | |
7773 | { | |
7774 | loc->shlib_disabled = 1; | |
08351840 PA |
7775 | /* At this point, we don't know whether the object was |
7776 | unmapped from the inferior or not, so leave the | |
7777 | inserted flag alone. We'll handle failure to | |
7778 | uninsert quietly, in case the object was indeed | |
7779 | unmapped. */ | |
63644780 NB |
7780 | |
7781 | mark_breakpoint_location_modified (loc); | |
7782 | ||
7783 | bp_modified = 1; | |
7784 | } | |
7785 | } | |
7786 | ||
7787 | if (bp_modified) | |
7788 | observer_notify_breakpoint_modified (b); | |
7789 | } | |
7790 | } | |
7791 | ||
ce78b96d JB |
7792 | /* FORK & VFORK catchpoints. */ |
7793 | ||
e29a4733 PA |
7794 | /* An instance of this type is used to represent a fork or vfork |
7795 | catchpoint. It includes a "struct breakpoint" as a kind of base | |
7796 | class; users downcast to "struct breakpoint *" when needed. A | |
7797 | breakpoint is really of this type iff its ops pointer points to | |
7798 | CATCH_FORK_BREAKPOINT_OPS. */ | |
7799 | ||
7800 | struct fork_catchpoint | |
7801 | { | |
7802 | /* The base class. */ | |
7803 | struct breakpoint base; | |
7804 | ||
7805 | /* Process id of a child process whose forking triggered this | |
7806 | catchpoint. This field is only valid immediately after this | |
7807 | catchpoint has triggered. */ | |
7808 | ptid_t forked_inferior_pid; | |
7809 | }; | |
7810 | ||
4a64f543 MS |
7811 | /* Implement the "insert" breakpoint_ops method for fork |
7812 | catchpoints. */ | |
ce78b96d | 7813 | |
77b06cd7 TJB |
7814 | static int |
7815 | insert_catch_fork (struct bp_location *bl) | |
ce78b96d | 7816 | { |
dfd4cc63 | 7817 | return target_insert_fork_catchpoint (ptid_get_pid (inferior_ptid)); |
ce78b96d JB |
7818 | } |
7819 | ||
4a64f543 MS |
7820 | /* Implement the "remove" breakpoint_ops method for fork |
7821 | catchpoints. */ | |
ce78b96d JB |
7822 | |
7823 | static int | |
77b06cd7 | 7824 | remove_catch_fork (struct bp_location *bl) |
ce78b96d | 7825 | { |
dfd4cc63 | 7826 | return target_remove_fork_catchpoint (ptid_get_pid (inferior_ptid)); |
ce78b96d JB |
7827 | } |
7828 | ||
7829 | /* Implement the "breakpoint_hit" breakpoint_ops method for fork | |
7830 | catchpoints. */ | |
7831 | ||
7832 | static int | |
f1310107 | 7833 | breakpoint_hit_catch_fork (const struct bp_location *bl, |
09ac7c10 TT |
7834 | struct address_space *aspace, CORE_ADDR bp_addr, |
7835 | const struct target_waitstatus *ws) | |
ce78b96d | 7836 | { |
e29a4733 PA |
7837 | struct fork_catchpoint *c = (struct fork_catchpoint *) bl->owner; |
7838 | ||
f90263c1 TT |
7839 | if (ws->kind != TARGET_WAITKIND_FORKED) |
7840 | return 0; | |
7841 | ||
7842 | c->forked_inferior_pid = ws->value.related_pid; | |
7843 | return 1; | |
ce78b96d JB |
7844 | } |
7845 | ||
4a64f543 MS |
7846 | /* Implement the "print_it" breakpoint_ops method for fork |
7847 | catchpoints. */ | |
ce78b96d JB |
7848 | |
7849 | static enum print_stop_action | |
348d480f | 7850 | print_it_catch_fork (bpstat bs) |
ce78b96d | 7851 | { |
36dfb11c | 7852 | struct ui_out *uiout = current_uiout; |
348d480f PA |
7853 | struct breakpoint *b = bs->breakpoint_at; |
7854 | struct fork_catchpoint *c = (struct fork_catchpoint *) bs->breakpoint_at; | |
e29a4733 | 7855 | |
ce78b96d | 7856 | annotate_catchpoint (b->number); |
36dfb11c TT |
7857 | if (b->disposition == disp_del) |
7858 | ui_out_text (uiout, "\nTemporary catchpoint "); | |
7859 | else | |
7860 | ui_out_text (uiout, "\nCatchpoint "); | |
7861 | if (ui_out_is_mi_like_p (uiout)) | |
7862 | { | |
7863 | ui_out_field_string (uiout, "reason", | |
7864 | async_reason_lookup (EXEC_ASYNC_FORK)); | |
7865 | ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition)); | |
7866 | } | |
7867 | ui_out_field_int (uiout, "bkptno", b->number); | |
7868 | ui_out_text (uiout, " (forked process "); | |
7869 | ui_out_field_int (uiout, "newpid", ptid_get_pid (c->forked_inferior_pid)); | |
7870 | ui_out_text (uiout, "), "); | |
ce78b96d JB |
7871 | return PRINT_SRC_AND_LOC; |
7872 | } | |
7873 | ||
4a64f543 MS |
7874 | /* Implement the "print_one" breakpoint_ops method for fork |
7875 | catchpoints. */ | |
ce78b96d JB |
7876 | |
7877 | static void | |
a6d9a66e | 7878 | print_one_catch_fork (struct breakpoint *b, struct bp_location **last_loc) |
ce78b96d | 7879 | { |
e29a4733 | 7880 | struct fork_catchpoint *c = (struct fork_catchpoint *) b; |
79a45b7d | 7881 | struct value_print_options opts; |
79a45e25 | 7882 | struct ui_out *uiout = current_uiout; |
79a45b7d TT |
7883 | |
7884 | get_user_print_options (&opts); | |
7885 | ||
4a64f543 MS |
7886 | /* Field 4, the address, is omitted (which makes the columns not |
7887 | line up too nicely with the headers, but the effect is relatively | |
7888 | readable). */ | |
79a45b7d | 7889 | if (opts.addressprint) |
ce78b96d JB |
7890 | ui_out_field_skip (uiout, "addr"); |
7891 | annotate_field (5); | |
7892 | ui_out_text (uiout, "fork"); | |
e29a4733 | 7893 | if (!ptid_equal (c->forked_inferior_pid, null_ptid)) |
ce78b96d JB |
7894 | { |
7895 | ui_out_text (uiout, ", process "); | |
7896 | ui_out_field_int (uiout, "what", | |
e29a4733 | 7897 | ptid_get_pid (c->forked_inferior_pid)); |
ce78b96d JB |
7898 | ui_out_spaces (uiout, 1); |
7899 | } | |
8ac3646f TT |
7900 | |
7901 | if (ui_out_is_mi_like_p (uiout)) | |
7902 | ui_out_field_string (uiout, "catch-type", "fork"); | |
ce78b96d JB |
7903 | } |
7904 | ||
7905 | /* Implement the "print_mention" breakpoint_ops method for fork | |
7906 | catchpoints. */ | |
7907 | ||
7908 | static void | |
7909 | print_mention_catch_fork (struct breakpoint *b) | |
7910 | { | |
7911 | printf_filtered (_("Catchpoint %d (fork)"), b->number); | |
7912 | } | |
7913 | ||
6149aea9 PA |
7914 | /* Implement the "print_recreate" breakpoint_ops method for fork |
7915 | catchpoints. */ | |
7916 | ||
7917 | static void | |
7918 | print_recreate_catch_fork (struct breakpoint *b, struct ui_file *fp) | |
7919 | { | |
7920 | fprintf_unfiltered (fp, "catch fork"); | |
d9b3f62e | 7921 | print_recreate_thread (b, fp); |
6149aea9 PA |
7922 | } |
7923 | ||
ce78b96d JB |
7924 | /* The breakpoint_ops structure to be used in fork catchpoints. */ |
7925 | ||
2060206e | 7926 | static struct breakpoint_ops catch_fork_breakpoint_ops; |
ce78b96d | 7927 | |
4a64f543 MS |
7928 | /* Implement the "insert" breakpoint_ops method for vfork |
7929 | catchpoints. */ | |
ce78b96d | 7930 | |
77b06cd7 TJB |
7931 | static int |
7932 | insert_catch_vfork (struct bp_location *bl) | |
ce78b96d | 7933 | { |
dfd4cc63 | 7934 | return target_insert_vfork_catchpoint (ptid_get_pid (inferior_ptid)); |
ce78b96d JB |
7935 | } |
7936 | ||
4a64f543 MS |
7937 | /* Implement the "remove" breakpoint_ops method for vfork |
7938 | catchpoints. */ | |
ce78b96d JB |
7939 | |
7940 | static int | |
77b06cd7 | 7941 | remove_catch_vfork (struct bp_location *bl) |
ce78b96d | 7942 | { |
dfd4cc63 | 7943 | return target_remove_vfork_catchpoint (ptid_get_pid (inferior_ptid)); |
ce78b96d JB |
7944 | } |
7945 | ||
7946 | /* Implement the "breakpoint_hit" breakpoint_ops method for vfork | |
7947 | catchpoints. */ | |
7948 | ||
7949 | static int | |
f1310107 | 7950 | breakpoint_hit_catch_vfork (const struct bp_location *bl, |
09ac7c10 TT |
7951 | struct address_space *aspace, CORE_ADDR bp_addr, |
7952 | const struct target_waitstatus *ws) | |
ce78b96d | 7953 | { |
e29a4733 PA |
7954 | struct fork_catchpoint *c = (struct fork_catchpoint *) bl->owner; |
7955 | ||
f90263c1 TT |
7956 | if (ws->kind != TARGET_WAITKIND_VFORKED) |
7957 | return 0; | |
7958 | ||
7959 | c->forked_inferior_pid = ws->value.related_pid; | |
7960 | return 1; | |
ce78b96d JB |
7961 | } |
7962 | ||
4a64f543 MS |
7963 | /* Implement the "print_it" breakpoint_ops method for vfork |
7964 | catchpoints. */ | |
ce78b96d JB |
7965 | |
7966 | static enum print_stop_action | |
348d480f | 7967 | print_it_catch_vfork (bpstat bs) |
ce78b96d | 7968 | { |
36dfb11c | 7969 | struct ui_out *uiout = current_uiout; |
348d480f | 7970 | struct breakpoint *b = bs->breakpoint_at; |
e29a4733 PA |
7971 | struct fork_catchpoint *c = (struct fork_catchpoint *) b; |
7972 | ||
ce78b96d | 7973 | annotate_catchpoint (b->number); |
36dfb11c TT |
7974 | if (b->disposition == disp_del) |
7975 | ui_out_text (uiout, "\nTemporary catchpoint "); | |
7976 | else | |
7977 | ui_out_text (uiout, "\nCatchpoint "); | |
7978 | if (ui_out_is_mi_like_p (uiout)) | |
7979 | { | |
7980 | ui_out_field_string (uiout, "reason", | |
7981 | async_reason_lookup (EXEC_ASYNC_VFORK)); | |
7982 | ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition)); | |
7983 | } | |
7984 | ui_out_field_int (uiout, "bkptno", b->number); | |
7985 | ui_out_text (uiout, " (vforked process "); | |
7986 | ui_out_field_int (uiout, "newpid", ptid_get_pid (c->forked_inferior_pid)); | |
7987 | ui_out_text (uiout, "), "); | |
ce78b96d JB |
7988 | return PRINT_SRC_AND_LOC; |
7989 | } | |
7990 | ||
4a64f543 MS |
7991 | /* Implement the "print_one" breakpoint_ops method for vfork |
7992 | catchpoints. */ | |
ce78b96d JB |
7993 | |
7994 | static void | |
a6d9a66e | 7995 | print_one_catch_vfork (struct breakpoint *b, struct bp_location **last_loc) |
ce78b96d | 7996 | { |
e29a4733 | 7997 | struct fork_catchpoint *c = (struct fork_catchpoint *) b; |
79a45b7d | 7998 | struct value_print_options opts; |
79a45e25 | 7999 | struct ui_out *uiout = current_uiout; |
79a45b7d TT |
8000 | |
8001 | get_user_print_options (&opts); | |
4a64f543 MS |
8002 | /* Field 4, the address, is omitted (which makes the columns not |
8003 | line up too nicely with the headers, but the effect is relatively | |
8004 | readable). */ | |
79a45b7d | 8005 | if (opts.addressprint) |
ce78b96d JB |
8006 | ui_out_field_skip (uiout, "addr"); |
8007 | annotate_field (5); | |
8008 | ui_out_text (uiout, "vfork"); | |
e29a4733 | 8009 | if (!ptid_equal (c->forked_inferior_pid, null_ptid)) |
ce78b96d JB |
8010 | { |
8011 | ui_out_text (uiout, ", process "); | |
8012 | ui_out_field_int (uiout, "what", | |
e29a4733 | 8013 | ptid_get_pid (c->forked_inferior_pid)); |
ce78b96d JB |
8014 | ui_out_spaces (uiout, 1); |
8015 | } | |
8ac3646f TT |
8016 | |
8017 | if (ui_out_is_mi_like_p (uiout)) | |
8018 | ui_out_field_string (uiout, "catch-type", "vfork"); | |
ce78b96d JB |
8019 | } |
8020 | ||
8021 | /* Implement the "print_mention" breakpoint_ops method for vfork | |
8022 | catchpoints. */ | |
8023 | ||
8024 | static void | |
8025 | print_mention_catch_vfork (struct breakpoint *b) | |
8026 | { | |
8027 | printf_filtered (_("Catchpoint %d (vfork)"), b->number); | |
8028 | } | |
8029 | ||
6149aea9 PA |
8030 | /* Implement the "print_recreate" breakpoint_ops method for vfork |
8031 | catchpoints. */ | |
8032 | ||
8033 | static void | |
8034 | print_recreate_catch_vfork (struct breakpoint *b, struct ui_file *fp) | |
8035 | { | |
8036 | fprintf_unfiltered (fp, "catch vfork"); | |
d9b3f62e | 8037 | print_recreate_thread (b, fp); |
6149aea9 PA |
8038 | } |
8039 | ||
ce78b96d JB |
8040 | /* The breakpoint_ops structure to be used in vfork catchpoints. */ |
8041 | ||
2060206e | 8042 | static struct breakpoint_ops catch_vfork_breakpoint_ops; |
ce78b96d | 8043 | |
edcc5120 TT |
8044 | /* An instance of this type is used to represent an solib catchpoint. |
8045 | It includes a "struct breakpoint" as a kind of base class; users | |
8046 | downcast to "struct breakpoint *" when needed. A breakpoint is | |
8047 | really of this type iff its ops pointer points to | |
8048 | CATCH_SOLIB_BREAKPOINT_OPS. */ | |
8049 | ||
8050 | struct solib_catchpoint | |
8051 | { | |
8052 | /* The base class. */ | |
8053 | struct breakpoint base; | |
8054 | ||
8055 | /* True for "catch load", false for "catch unload". */ | |
8056 | unsigned char is_load; | |
8057 | ||
8058 | /* Regular expression to match, if any. COMPILED is only valid when | |
8059 | REGEX is non-NULL. */ | |
8060 | char *regex; | |
8061 | regex_t compiled; | |
8062 | }; | |
8063 | ||
8064 | static void | |
8065 | dtor_catch_solib (struct breakpoint *b) | |
8066 | { | |
8067 | struct solib_catchpoint *self = (struct solib_catchpoint *) b; | |
8068 | ||
8069 | if (self->regex) | |
8070 | regfree (&self->compiled); | |
8071 | xfree (self->regex); | |
8072 | ||
8073 | base_breakpoint_ops.dtor (b); | |
8074 | } | |
8075 | ||
8076 | static int | |
8077 | insert_catch_solib (struct bp_location *ignore) | |
8078 | { | |
8079 | return 0; | |
8080 | } | |
8081 | ||
8082 | static int | |
8083 | remove_catch_solib (struct bp_location *ignore) | |
8084 | { | |
8085 | return 0; | |
8086 | } | |
8087 | ||
8088 | static int | |
8089 | breakpoint_hit_catch_solib (const struct bp_location *bl, | |
8090 | struct address_space *aspace, | |
8091 | CORE_ADDR bp_addr, | |
8092 | const struct target_waitstatus *ws) | |
8093 | { | |
8094 | struct solib_catchpoint *self = (struct solib_catchpoint *) bl->owner; | |
8095 | struct breakpoint *other; | |
8096 | ||
8097 | if (ws->kind == TARGET_WAITKIND_LOADED) | |
8098 | return 1; | |
8099 | ||
8100 | ALL_BREAKPOINTS (other) | |
8101 | { | |
8102 | struct bp_location *other_bl; | |
8103 | ||
8104 | if (other == bl->owner) | |
8105 | continue; | |
8106 | ||
8107 | if (other->type != bp_shlib_event) | |
8108 | continue; | |
8109 | ||
8110 | if (self->base.pspace != NULL && other->pspace != self->base.pspace) | |
8111 | continue; | |
8112 | ||
8113 | for (other_bl = other->loc; other_bl != NULL; other_bl = other_bl->next) | |
8114 | { | |
8115 | if (other->ops->breakpoint_hit (other_bl, aspace, bp_addr, ws)) | |
8116 | return 1; | |
8117 | } | |
8118 | } | |
8119 | ||
8120 | return 0; | |
8121 | } | |
8122 | ||
8123 | static void | |
8124 | check_status_catch_solib (struct bpstats *bs) | |
8125 | { | |
8126 | struct solib_catchpoint *self | |
8127 | = (struct solib_catchpoint *) bs->breakpoint_at; | |
8128 | int ix; | |
8129 | ||
8130 | if (self->is_load) | |
8131 | { | |
8132 | struct so_list *iter; | |
8133 | ||
8134 | for (ix = 0; | |
8135 | VEC_iterate (so_list_ptr, current_program_space->added_solibs, | |
8136 | ix, iter); | |
8137 | ++ix) | |
8138 | { | |
8139 | if (!self->regex | |
8140 | || regexec (&self->compiled, iter->so_name, 0, NULL, 0) == 0) | |
8141 | return; | |
8142 | } | |
8143 | } | |
8144 | else | |
8145 | { | |
8146 | char *iter; | |
8147 | ||
8148 | for (ix = 0; | |
8149 | VEC_iterate (char_ptr, current_program_space->deleted_solibs, | |
8150 | ix, iter); | |
8151 | ++ix) | |
8152 | { | |
8153 | if (!self->regex | |
8154 | || regexec (&self->compiled, iter, 0, NULL, 0) == 0) | |
8155 | return; | |
8156 | } | |
8157 | } | |
8158 | ||
8159 | bs->stop = 0; | |
8160 | bs->print_it = print_it_noop; | |
8161 | } | |
8162 | ||
8163 | static enum print_stop_action | |
8164 | print_it_catch_solib (bpstat bs) | |
8165 | { | |
8166 | struct breakpoint *b = bs->breakpoint_at; | |
8167 | struct ui_out *uiout = current_uiout; | |
8168 | ||
8169 | annotate_catchpoint (b->number); | |
8170 | if (b->disposition == disp_del) | |
8171 | ui_out_text (uiout, "\nTemporary catchpoint "); | |
8172 | else | |
8173 | ui_out_text (uiout, "\nCatchpoint "); | |
8174 | ui_out_field_int (uiout, "bkptno", b->number); | |
8175 | ui_out_text (uiout, "\n"); | |
8176 | if (ui_out_is_mi_like_p (uiout)) | |
8177 | ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition)); | |
8178 | print_solib_event (1); | |
8179 | return PRINT_SRC_AND_LOC; | |
8180 | } | |
8181 | ||
8182 | static void | |
8183 | print_one_catch_solib (struct breakpoint *b, struct bp_location **locs) | |
8184 | { | |
8185 | struct solib_catchpoint *self = (struct solib_catchpoint *) b; | |
8186 | struct value_print_options opts; | |
8187 | struct ui_out *uiout = current_uiout; | |
8188 | char *msg; | |
8189 | ||
8190 | get_user_print_options (&opts); | |
8191 | /* Field 4, the address, is omitted (which makes the columns not | |
8192 | line up too nicely with the headers, but the effect is relatively | |
8193 | readable). */ | |
8194 | if (opts.addressprint) | |
8195 | { | |
8196 | annotate_field (4); | |
8197 | ui_out_field_skip (uiout, "addr"); | |
8198 | } | |
8199 | ||
8200 | annotate_field (5); | |
8201 | if (self->is_load) | |
8202 | { | |
8203 | if (self->regex) | |
8204 | msg = xstrprintf (_("load of library matching %s"), self->regex); | |
8205 | else | |
8206 | msg = xstrdup (_("load of library")); | |
8207 | } | |
8208 | else | |
8209 | { | |
8210 | if (self->regex) | |
8211 | msg = xstrprintf (_("unload of library matching %s"), self->regex); | |
8212 | else | |
8213 | msg = xstrdup (_("unload of library")); | |
8214 | } | |
8215 | ui_out_field_string (uiout, "what", msg); | |
8216 | xfree (msg); | |
8ac3646f TT |
8217 | |
8218 | if (ui_out_is_mi_like_p (uiout)) | |
8219 | ui_out_field_string (uiout, "catch-type", | |
8220 | self->is_load ? "load" : "unload"); | |
edcc5120 TT |
8221 | } |
8222 | ||
8223 | static void | |
8224 | print_mention_catch_solib (struct breakpoint *b) | |
8225 | { | |
8226 | struct solib_catchpoint *self = (struct solib_catchpoint *) b; | |
8227 | ||
8228 | printf_filtered (_("Catchpoint %d (%s)"), b->number, | |
8229 | self->is_load ? "load" : "unload"); | |
8230 | } | |
8231 | ||
8232 | static void | |
8233 | print_recreate_catch_solib (struct breakpoint *b, struct ui_file *fp) | |
8234 | { | |
8235 | struct solib_catchpoint *self = (struct solib_catchpoint *) b; | |
8236 | ||
8237 | fprintf_unfiltered (fp, "%s %s", | |
8238 | b->disposition == disp_del ? "tcatch" : "catch", | |
8239 | self->is_load ? "load" : "unload"); | |
8240 | if (self->regex) | |
8241 | fprintf_unfiltered (fp, " %s", self->regex); | |
8242 | fprintf_unfiltered (fp, "\n"); | |
8243 | } | |
8244 | ||
8245 | static struct breakpoint_ops catch_solib_breakpoint_ops; | |
8246 | ||
91985142 MG |
8247 | /* Shared helper function (MI and CLI) for creating and installing |
8248 | a shared object event catchpoint. If IS_LOAD is non-zero then | |
8249 | the events to be caught are load events, otherwise they are | |
8250 | unload events. If IS_TEMP is non-zero the catchpoint is a | |
8251 | temporary one. If ENABLED is non-zero the catchpoint is | |
8252 | created in an enabled state. */ | |
edcc5120 | 8253 | |
91985142 MG |
8254 | void |
8255 | add_solib_catchpoint (char *arg, int is_load, int is_temp, int enabled) | |
edcc5120 TT |
8256 | { |
8257 | struct solib_catchpoint *c; | |
8258 | struct gdbarch *gdbarch = get_current_arch (); | |
edcc5120 TT |
8259 | struct cleanup *cleanup; |
8260 | ||
edcc5120 TT |
8261 | if (!arg) |
8262 | arg = ""; | |
8263 | arg = skip_spaces (arg); | |
8264 | ||
8265 | c = XCNEW (struct solib_catchpoint); | |
8266 | cleanup = make_cleanup (xfree, c); | |
8267 | ||
8268 | if (*arg != '\0') | |
8269 | { | |
8270 | int errcode; | |
8271 | ||
8272 | errcode = regcomp (&c->compiled, arg, REG_NOSUB); | |
8273 | if (errcode != 0) | |
8274 | { | |
8275 | char *err = get_regcomp_error (errcode, &c->compiled); | |
8276 | ||
8277 | make_cleanup (xfree, err); | |
8278 | error (_("Invalid regexp (%s): %s"), err, arg); | |
8279 | } | |
8280 | c->regex = xstrdup (arg); | |
8281 | } | |
8282 | ||
8283 | c->is_load = is_load; | |
91985142 | 8284 | init_catchpoint (&c->base, gdbarch, is_temp, NULL, |
edcc5120 TT |
8285 | &catch_solib_breakpoint_ops); |
8286 | ||
91985142 MG |
8287 | c->base.enable_state = enabled ? bp_enabled : bp_disabled; |
8288 | ||
edcc5120 TT |
8289 | discard_cleanups (cleanup); |
8290 | install_breakpoint (0, &c->base, 1); | |
8291 | } | |
8292 | ||
91985142 MG |
8293 | /* A helper function that does all the work for "catch load" and |
8294 | "catch unload". */ | |
8295 | ||
8296 | static void | |
8297 | catch_load_or_unload (char *arg, int from_tty, int is_load, | |
8298 | struct cmd_list_element *command) | |
8299 | { | |
8300 | int tempflag; | |
8301 | const int enabled = 1; | |
8302 | ||
8303 | tempflag = get_cmd_context (command) == CATCH_TEMPORARY; | |
8304 | ||
8305 | add_solib_catchpoint (arg, is_load, tempflag, enabled); | |
8306 | } | |
8307 | ||
edcc5120 TT |
8308 | static void |
8309 | catch_load_command_1 (char *arg, int from_tty, | |
8310 | struct cmd_list_element *command) | |
8311 | { | |
8312 | catch_load_or_unload (arg, from_tty, 1, command); | |
8313 | } | |
8314 | ||
8315 | static void | |
8316 | catch_unload_command_1 (char *arg, int from_tty, | |
8317 | struct cmd_list_element *command) | |
8318 | { | |
8319 | catch_load_or_unload (arg, from_tty, 0, command); | |
8320 | } | |
8321 | ||
be5c67c1 PA |
8322 | /* An instance of this type is used to represent a syscall catchpoint. |
8323 | It includes a "struct breakpoint" as a kind of base class; users | |
8324 | downcast to "struct breakpoint *" when needed. A breakpoint is | |
8325 | really of this type iff its ops pointer points to | |
8326 | CATCH_SYSCALL_BREAKPOINT_OPS. */ | |
8327 | ||
8328 | struct syscall_catchpoint | |
8329 | { | |
8330 | /* The base class. */ | |
8331 | struct breakpoint base; | |
8332 | ||
8333 | /* Syscall numbers used for the 'catch syscall' feature. If no | |
8334 | syscall has been specified for filtering, its value is NULL. | |
8335 | Otherwise, it holds a list of all syscalls to be caught. The | |
8336 | list elements are allocated with xmalloc. */ | |
8337 | VEC(int) *syscalls_to_be_caught; | |
8338 | }; | |
8339 | ||
8340 | /* Implement the "dtor" breakpoint_ops method for syscall | |
8341 | catchpoints. */ | |
8342 | ||
8343 | static void | |
8344 | dtor_catch_syscall (struct breakpoint *b) | |
8345 | { | |
8346 | struct syscall_catchpoint *c = (struct syscall_catchpoint *) b; | |
8347 | ||
8348 | VEC_free (int, c->syscalls_to_be_caught); | |
348d480f | 8349 | |
2060206e | 8350 | base_breakpoint_ops.dtor (b); |
be5c67c1 PA |
8351 | } |
8352 | ||
fa3064dd YQ |
8353 | static const struct inferior_data *catch_syscall_inferior_data = NULL; |
8354 | ||
8355 | struct catch_syscall_inferior_data | |
8356 | { | |
8357 | /* We keep a count of the number of times the user has requested a | |
8358 | particular syscall to be tracked, and pass this information to the | |
8359 | target. This lets capable targets implement filtering directly. */ | |
8360 | ||
8361 | /* Number of times that "any" syscall is requested. */ | |
8362 | int any_syscall_count; | |
8363 | ||
8364 | /* Count of each system call. */ | |
8365 | VEC(int) *syscalls_counts; | |
8366 | ||
8367 | /* This counts all syscall catch requests, so we can readily determine | |
8368 | if any catching is necessary. */ | |
8369 | int total_syscalls_count; | |
8370 | }; | |
8371 | ||
8372 | static struct catch_syscall_inferior_data* | |
8373 | get_catch_syscall_inferior_data (struct inferior *inf) | |
8374 | { | |
8375 | struct catch_syscall_inferior_data *inf_data; | |
8376 | ||
8377 | inf_data = inferior_data (inf, catch_syscall_inferior_data); | |
8378 | if (inf_data == NULL) | |
8379 | { | |
41bf6aca | 8380 | inf_data = XCNEW (struct catch_syscall_inferior_data); |
fa3064dd YQ |
8381 | set_inferior_data (inf, catch_syscall_inferior_data, inf_data); |
8382 | } | |
8383 | ||
8384 | return inf_data; | |
8385 | } | |
8386 | ||
8387 | static void | |
8388 | catch_syscall_inferior_data_cleanup (struct inferior *inf, void *arg) | |
8389 | { | |
8390 | xfree (arg); | |
8391 | } | |
8392 | ||
8393 | ||
a96d9b2e SDJ |
8394 | /* Implement the "insert" breakpoint_ops method for syscall |
8395 | catchpoints. */ | |
8396 | ||
77b06cd7 TJB |
8397 | static int |
8398 | insert_catch_syscall (struct bp_location *bl) | |
a96d9b2e | 8399 | { |
be5c67c1 | 8400 | struct syscall_catchpoint *c = (struct syscall_catchpoint *) bl->owner; |
a96d9b2e | 8401 | struct inferior *inf = current_inferior (); |
fa3064dd YQ |
8402 | struct catch_syscall_inferior_data *inf_data |
8403 | = get_catch_syscall_inferior_data (inf); | |
a96d9b2e | 8404 | |
fa3064dd | 8405 | ++inf_data->total_syscalls_count; |
be5c67c1 | 8406 | if (!c->syscalls_to_be_caught) |
fa3064dd | 8407 | ++inf_data->any_syscall_count; |
a96d9b2e SDJ |
8408 | else |
8409 | { | |
8410 | int i, iter; | |
cc59ec59 | 8411 | |
a96d9b2e | 8412 | for (i = 0; |
be5c67c1 | 8413 | VEC_iterate (int, c->syscalls_to_be_caught, i, iter); |
a96d9b2e SDJ |
8414 | i++) |
8415 | { | |
8416 | int elem; | |
cc59ec59 | 8417 | |
fa3064dd | 8418 | if (iter >= VEC_length (int, inf_data->syscalls_counts)) |
a96d9b2e | 8419 | { |
fa3064dd | 8420 | int old_size = VEC_length (int, inf_data->syscalls_counts); |
3e43a32a MS |
8421 | uintptr_t vec_addr_offset |
8422 | = old_size * ((uintptr_t) sizeof (int)); | |
a96d9b2e | 8423 | uintptr_t vec_addr; |
fa3064dd YQ |
8424 | VEC_safe_grow (int, inf_data->syscalls_counts, iter + 1); |
8425 | vec_addr = ((uintptr_t) VEC_address (int, | |
8426 | inf_data->syscalls_counts) | |
8427 | + vec_addr_offset); | |
a96d9b2e SDJ |
8428 | memset ((void *) vec_addr, 0, |
8429 | (iter + 1 - old_size) * sizeof (int)); | |
8430 | } | |
fa3064dd YQ |
8431 | elem = VEC_index (int, inf_data->syscalls_counts, iter); |
8432 | VEC_replace (int, inf_data->syscalls_counts, iter, ++elem); | |
a96d9b2e SDJ |
8433 | } |
8434 | } | |
8435 | ||
dfd4cc63 | 8436 | return target_set_syscall_catchpoint (ptid_get_pid (inferior_ptid), |
fa3064dd YQ |
8437 | inf_data->total_syscalls_count != 0, |
8438 | inf_data->any_syscall_count, | |
8439 | VEC_length (int, | |
8440 | inf_data->syscalls_counts), | |
8441 | VEC_address (int, | |
8442 | inf_data->syscalls_counts)); | |
a96d9b2e SDJ |
8443 | } |
8444 | ||
8445 | /* Implement the "remove" breakpoint_ops method for syscall | |
8446 | catchpoints. */ | |
8447 | ||
8448 | static int | |
77b06cd7 | 8449 | remove_catch_syscall (struct bp_location *bl) |
a96d9b2e | 8450 | { |
be5c67c1 | 8451 | struct syscall_catchpoint *c = (struct syscall_catchpoint *) bl->owner; |
a96d9b2e | 8452 | struct inferior *inf = current_inferior (); |
fa3064dd YQ |
8453 | struct catch_syscall_inferior_data *inf_data |
8454 | = get_catch_syscall_inferior_data (inf); | |
a96d9b2e | 8455 | |
fa3064dd | 8456 | --inf_data->total_syscalls_count; |
be5c67c1 | 8457 | if (!c->syscalls_to_be_caught) |
fa3064dd | 8458 | --inf_data->any_syscall_count; |
a96d9b2e SDJ |
8459 | else |
8460 | { | |
8461 | int i, iter; | |
cc59ec59 | 8462 | |
a96d9b2e | 8463 | for (i = 0; |
be5c67c1 | 8464 | VEC_iterate (int, c->syscalls_to_be_caught, i, iter); |
a96d9b2e SDJ |
8465 | i++) |
8466 | { | |
8467 | int elem; | |
fa3064dd | 8468 | if (iter >= VEC_length (int, inf_data->syscalls_counts)) |
a96d9b2e SDJ |
8469 | /* Shouldn't happen. */ |
8470 | continue; | |
fa3064dd YQ |
8471 | elem = VEC_index (int, inf_data->syscalls_counts, iter); |
8472 | VEC_replace (int, inf_data->syscalls_counts, iter, --elem); | |
a96d9b2e SDJ |
8473 | } |
8474 | } | |
8475 | ||
dfd4cc63 | 8476 | return target_set_syscall_catchpoint (ptid_get_pid (inferior_ptid), |
fa3064dd YQ |
8477 | inf_data->total_syscalls_count != 0, |
8478 | inf_data->any_syscall_count, | |
8479 | VEC_length (int, | |
8480 | inf_data->syscalls_counts), | |
3e43a32a | 8481 | VEC_address (int, |
fa3064dd | 8482 | inf_data->syscalls_counts)); |
a96d9b2e SDJ |
8483 | } |
8484 | ||
8485 | /* Implement the "breakpoint_hit" breakpoint_ops method for syscall | |
8486 | catchpoints. */ | |
8487 | ||
8488 | static int | |
f1310107 | 8489 | breakpoint_hit_catch_syscall (const struct bp_location *bl, |
09ac7c10 TT |
8490 | struct address_space *aspace, CORE_ADDR bp_addr, |
8491 | const struct target_waitstatus *ws) | |
a96d9b2e | 8492 | { |
4a64f543 MS |
8493 | /* We must check if we are catching specific syscalls in this |
8494 | breakpoint. If we are, then we must guarantee that the called | |
8495 | syscall is the same syscall we are catching. */ | |
a96d9b2e | 8496 | int syscall_number = 0; |
be5c67c1 PA |
8497 | const struct syscall_catchpoint *c |
8498 | = (const struct syscall_catchpoint *) bl->owner; | |
a96d9b2e | 8499 | |
f90263c1 TT |
8500 | if (ws->kind != TARGET_WAITKIND_SYSCALL_ENTRY |
8501 | && ws->kind != TARGET_WAITKIND_SYSCALL_RETURN) | |
a96d9b2e SDJ |
8502 | return 0; |
8503 | ||
f90263c1 TT |
8504 | syscall_number = ws->value.syscall_number; |
8505 | ||
a96d9b2e | 8506 | /* Now, checking if the syscall is the same. */ |
be5c67c1 | 8507 | if (c->syscalls_to_be_caught) |
a96d9b2e SDJ |
8508 | { |
8509 | int i, iter; | |
cc59ec59 | 8510 | |
a96d9b2e | 8511 | for (i = 0; |
be5c67c1 | 8512 | VEC_iterate (int, c->syscalls_to_be_caught, i, iter); |
a96d9b2e SDJ |
8513 | i++) |
8514 | if (syscall_number == iter) | |
4924df79 GKB |
8515 | return 1; |
8516 | ||
8517 | return 0; | |
a96d9b2e SDJ |
8518 | } |
8519 | ||
8520 | return 1; | |
8521 | } | |
8522 | ||
8523 | /* Implement the "print_it" breakpoint_ops method for syscall | |
8524 | catchpoints. */ | |
8525 | ||
8526 | static enum print_stop_action | |
348d480f | 8527 | print_it_catch_syscall (bpstat bs) |
a96d9b2e | 8528 | { |
36dfb11c | 8529 | struct ui_out *uiout = current_uiout; |
348d480f | 8530 | struct breakpoint *b = bs->breakpoint_at; |
a96d9b2e SDJ |
8531 | /* These are needed because we want to know in which state a |
8532 | syscall is. It can be in the TARGET_WAITKIND_SYSCALL_ENTRY | |
8533 | or TARGET_WAITKIND_SYSCALL_RETURN, and depending on it we | |
8534 | must print "called syscall" or "returned from syscall". */ | |
8535 | ptid_t ptid; | |
8536 | struct target_waitstatus last; | |
8537 | struct syscall s; | |
a96d9b2e SDJ |
8538 | |
8539 | get_last_target_status (&ptid, &last); | |
8540 | ||
8541 | get_syscall_by_number (last.value.syscall_number, &s); | |
8542 | ||
8543 | annotate_catchpoint (b->number); | |
8544 | ||
36dfb11c TT |
8545 | if (b->disposition == disp_del) |
8546 | ui_out_text (uiout, "\nTemporary catchpoint "); | |
a96d9b2e | 8547 | else |
36dfb11c TT |
8548 | ui_out_text (uiout, "\nCatchpoint "); |
8549 | if (ui_out_is_mi_like_p (uiout)) | |
8550 | { | |
8551 | ui_out_field_string (uiout, "reason", | |
8552 | async_reason_lookup (last.kind == TARGET_WAITKIND_SYSCALL_ENTRY | |
8553 | ? EXEC_ASYNC_SYSCALL_ENTRY | |
8554 | : EXEC_ASYNC_SYSCALL_RETURN)); | |
8555 | ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition)); | |
8556 | } | |
8557 | ui_out_field_int (uiout, "bkptno", b->number); | |
a96d9b2e SDJ |
8558 | |
8559 | if (last.kind == TARGET_WAITKIND_SYSCALL_ENTRY) | |
36dfb11c TT |
8560 | ui_out_text (uiout, " (call to syscall "); |
8561 | else | |
8562 | ui_out_text (uiout, " (returned from syscall "); | |
a96d9b2e | 8563 | |
36dfb11c TT |
8564 | if (s.name == NULL || ui_out_is_mi_like_p (uiout)) |
8565 | ui_out_field_int (uiout, "syscall-number", last.value.syscall_number); | |
8566 | if (s.name != NULL) | |
8567 | ui_out_field_string (uiout, "syscall-name", s.name); | |
8568 | ||
8569 | ui_out_text (uiout, "), "); | |
a96d9b2e SDJ |
8570 | |
8571 | return PRINT_SRC_AND_LOC; | |
8572 | } | |
8573 | ||
8574 | /* Implement the "print_one" breakpoint_ops method for syscall | |
8575 | catchpoints. */ | |
8576 | ||
8577 | static void | |
8578 | print_one_catch_syscall (struct breakpoint *b, | |
f1310107 | 8579 | struct bp_location **last_loc) |
a96d9b2e | 8580 | { |
be5c67c1 | 8581 | struct syscall_catchpoint *c = (struct syscall_catchpoint *) b; |
a96d9b2e | 8582 | struct value_print_options opts; |
79a45e25 | 8583 | struct ui_out *uiout = current_uiout; |
a96d9b2e SDJ |
8584 | |
8585 | get_user_print_options (&opts); | |
4a64f543 MS |
8586 | /* Field 4, the address, is omitted (which makes the columns not |
8587 | line up too nicely with the headers, but the effect is relatively | |
8588 | readable). */ | |
a96d9b2e SDJ |
8589 | if (opts.addressprint) |
8590 | ui_out_field_skip (uiout, "addr"); | |
8591 | annotate_field (5); | |
8592 | ||
be5c67c1 PA |
8593 | if (c->syscalls_to_be_caught |
8594 | && VEC_length (int, c->syscalls_to_be_caught) > 1) | |
a96d9b2e SDJ |
8595 | ui_out_text (uiout, "syscalls \""); |
8596 | else | |
8597 | ui_out_text (uiout, "syscall \""); | |
8598 | ||
be5c67c1 | 8599 | if (c->syscalls_to_be_caught) |
a96d9b2e SDJ |
8600 | { |
8601 | int i, iter; | |
8602 | char *text = xstrprintf ("%s", ""); | |
cc59ec59 | 8603 | |
a96d9b2e | 8604 | for (i = 0; |
be5c67c1 | 8605 | VEC_iterate (int, c->syscalls_to_be_caught, i, iter); |
a96d9b2e SDJ |
8606 | i++) |
8607 | { | |
8608 | char *x = text; | |
8609 | struct syscall s; | |
8610 | get_syscall_by_number (iter, &s); | |
8611 | ||
8612 | if (s.name != NULL) | |
8613 | text = xstrprintf ("%s%s, ", text, s.name); | |
8614 | else | |
8615 | text = xstrprintf ("%s%d, ", text, iter); | |
8616 | ||
8617 | /* We have to xfree the last 'text' (now stored at 'x') | |
e5dd4106 | 8618 | because xstrprintf dynamically allocates new space for it |
a96d9b2e SDJ |
8619 | on every call. */ |
8620 | xfree (x); | |
8621 | } | |
8622 | /* Remove the last comma. */ | |
8623 | text[strlen (text) - 2] = '\0'; | |
8624 | ui_out_field_string (uiout, "what", text); | |
8625 | } | |
8626 | else | |
8627 | ui_out_field_string (uiout, "what", "<any syscall>"); | |
8628 | ui_out_text (uiout, "\" "); | |
8ac3646f TT |
8629 | |
8630 | if (ui_out_is_mi_like_p (uiout)) | |
8631 | ui_out_field_string (uiout, "catch-type", "syscall"); | |
a96d9b2e SDJ |
8632 | } |
8633 | ||
8634 | /* Implement the "print_mention" breakpoint_ops method for syscall | |
8635 | catchpoints. */ | |
8636 | ||
8637 | static void | |
8638 | print_mention_catch_syscall (struct breakpoint *b) | |
8639 | { | |
be5c67c1 PA |
8640 | struct syscall_catchpoint *c = (struct syscall_catchpoint *) b; |
8641 | ||
8642 | if (c->syscalls_to_be_caught) | |
a96d9b2e SDJ |
8643 | { |
8644 | int i, iter; | |
8645 | ||
be5c67c1 | 8646 | if (VEC_length (int, c->syscalls_to_be_caught) > 1) |
a96d9b2e SDJ |
8647 | printf_filtered (_("Catchpoint %d (syscalls"), b->number); |
8648 | else | |
8649 | printf_filtered (_("Catchpoint %d (syscall"), b->number); | |
8650 | ||
8651 | for (i = 0; | |
be5c67c1 | 8652 | VEC_iterate (int, c->syscalls_to_be_caught, i, iter); |
a96d9b2e SDJ |
8653 | i++) |
8654 | { | |
8655 | struct syscall s; | |
8656 | get_syscall_by_number (iter, &s); | |
8657 | ||
8658 | if (s.name) | |
8659 | printf_filtered (" '%s' [%d]", s.name, s.number); | |
8660 | else | |
8661 | printf_filtered (" %d", s.number); | |
8662 | } | |
8663 | printf_filtered (")"); | |
8664 | } | |
8665 | else | |
8666 | printf_filtered (_("Catchpoint %d (any syscall)"), | |
8667 | b->number); | |
8668 | } | |
8669 | ||
6149aea9 PA |
8670 | /* Implement the "print_recreate" breakpoint_ops method for syscall |
8671 | catchpoints. */ | |
8672 | ||
8673 | static void | |
8674 | print_recreate_catch_syscall (struct breakpoint *b, struct ui_file *fp) | |
8675 | { | |
be5c67c1 PA |
8676 | struct syscall_catchpoint *c = (struct syscall_catchpoint *) b; |
8677 | ||
6149aea9 PA |
8678 | fprintf_unfiltered (fp, "catch syscall"); |
8679 | ||
be5c67c1 | 8680 | if (c->syscalls_to_be_caught) |
6149aea9 PA |
8681 | { |
8682 | int i, iter; | |
8683 | ||
8684 | for (i = 0; | |
be5c67c1 | 8685 | VEC_iterate (int, c->syscalls_to_be_caught, i, iter); |
6149aea9 PA |
8686 | i++) |
8687 | { | |
8688 | struct syscall s; | |
8689 | ||
8690 | get_syscall_by_number (iter, &s); | |
8691 | if (s.name) | |
8692 | fprintf_unfiltered (fp, " %s", s.name); | |
8693 | else | |
8694 | fprintf_unfiltered (fp, " %d", s.number); | |
8695 | } | |
8696 | } | |
d9b3f62e | 8697 | print_recreate_thread (b, fp); |
6149aea9 PA |
8698 | } |
8699 | ||
a96d9b2e SDJ |
8700 | /* The breakpoint_ops structure to be used in syscall catchpoints. */ |
8701 | ||
2060206e | 8702 | static struct breakpoint_ops catch_syscall_breakpoint_ops; |
a96d9b2e SDJ |
8703 | |
8704 | /* Returns non-zero if 'b' is a syscall catchpoint. */ | |
8705 | ||
8706 | static int | |
8707 | syscall_catchpoint_p (struct breakpoint *b) | |
8708 | { | |
8709 | return (b->ops == &catch_syscall_breakpoint_ops); | |
8710 | } | |
8711 | ||
346774a9 PA |
8712 | /* Initialize a new breakpoint of the bp_catchpoint kind. If TEMPFLAG |
8713 | is non-zero, then make the breakpoint temporary. If COND_STRING is | |
8714 | not NULL, then store it in the breakpoint. OPS, if not NULL, is | |
8715 | the breakpoint_ops structure associated to the catchpoint. */ | |
ce78b96d | 8716 | |
ab04a2af | 8717 | void |
346774a9 PA |
8718 | init_catchpoint (struct breakpoint *b, |
8719 | struct gdbarch *gdbarch, int tempflag, | |
8720 | char *cond_string, | |
c0a91b2b | 8721 | const struct breakpoint_ops *ops) |
c906108c | 8722 | { |
c5aa993b | 8723 | struct symtab_and_line sal; |
346774a9 | 8724 | |
fe39c653 | 8725 | init_sal (&sal); |
6c95b8df | 8726 | sal.pspace = current_program_space; |
c5aa993b | 8727 | |
28010a5d | 8728 | init_raw_breakpoint (b, gdbarch, sal, bp_catchpoint, ops); |
ce78b96d | 8729 | |
1b36a34b | 8730 | b->cond_string = (cond_string == NULL) ? NULL : xstrdup (cond_string); |
b5de0fa7 | 8731 | b->disposition = tempflag ? disp_del : disp_donttouch; |
346774a9 PA |
8732 | } |
8733 | ||
28010a5d | 8734 | void |
3ea46bff | 8735 | install_breakpoint (int internal, struct breakpoint *b, int update_gll) |
c56053d2 PA |
8736 | { |
8737 | add_to_breakpoint_chain (b); | |
3a5c3e22 | 8738 | set_breakpoint_number (internal, b); |
558a9d82 YQ |
8739 | if (is_tracepoint (b)) |
8740 | set_tracepoint_count (breakpoint_count); | |
3a5c3e22 PA |
8741 | if (!internal) |
8742 | mention (b); | |
c56053d2 | 8743 | observer_notify_breakpoint_created (b); |
3ea46bff YQ |
8744 | |
8745 | if (update_gll) | |
8746 | update_global_location_list (1); | |
c56053d2 PA |
8747 | } |
8748 | ||
9b70b993 | 8749 | static void |
a6d9a66e UW |
8750 | create_fork_vfork_event_catchpoint (struct gdbarch *gdbarch, |
8751 | int tempflag, char *cond_string, | |
c0a91b2b | 8752 | const struct breakpoint_ops *ops) |
c906108c | 8753 | { |
e29a4733 | 8754 | struct fork_catchpoint *c = XNEW (struct fork_catchpoint); |
ce78b96d | 8755 | |
e29a4733 PA |
8756 | init_catchpoint (&c->base, gdbarch, tempflag, cond_string, ops); |
8757 | ||
8758 | c->forked_inferior_pid = null_ptid; | |
8759 | ||
3ea46bff | 8760 | install_breakpoint (0, &c->base, 1); |
c906108c SS |
8761 | } |
8762 | ||
fe798b75 JB |
8763 | /* Exec catchpoints. */ |
8764 | ||
b4d90040 PA |
8765 | /* An instance of this type is used to represent an exec catchpoint. |
8766 | It includes a "struct breakpoint" as a kind of base class; users | |
8767 | downcast to "struct breakpoint *" when needed. A breakpoint is | |
8768 | really of this type iff its ops pointer points to | |
8769 | CATCH_EXEC_BREAKPOINT_OPS. */ | |
8770 | ||
8771 | struct exec_catchpoint | |
8772 | { | |
8773 | /* The base class. */ | |
8774 | struct breakpoint base; | |
8775 | ||
8776 | /* Filename of a program whose exec triggered this catchpoint. | |
8777 | This field is only valid immediately after this catchpoint has | |
8778 | triggered. */ | |
8779 | char *exec_pathname; | |
8780 | }; | |
8781 | ||
8782 | /* Implement the "dtor" breakpoint_ops method for exec | |
8783 | catchpoints. */ | |
8784 | ||
8785 | static void | |
8786 | dtor_catch_exec (struct breakpoint *b) | |
8787 | { | |
8788 | struct exec_catchpoint *c = (struct exec_catchpoint *) b; | |
8789 | ||
8790 | xfree (c->exec_pathname); | |
348d480f | 8791 | |
2060206e | 8792 | base_breakpoint_ops.dtor (b); |
b4d90040 PA |
8793 | } |
8794 | ||
77b06cd7 TJB |
8795 | static int |
8796 | insert_catch_exec (struct bp_location *bl) | |
c906108c | 8797 | { |
dfd4cc63 | 8798 | return target_insert_exec_catchpoint (ptid_get_pid (inferior_ptid)); |
fe798b75 | 8799 | } |
c906108c | 8800 | |
fe798b75 | 8801 | static int |
77b06cd7 | 8802 | remove_catch_exec (struct bp_location *bl) |
fe798b75 | 8803 | { |
dfd4cc63 | 8804 | return target_remove_exec_catchpoint (ptid_get_pid (inferior_ptid)); |
fe798b75 | 8805 | } |
c906108c | 8806 | |
fe798b75 | 8807 | static int |
f1310107 | 8808 | breakpoint_hit_catch_exec (const struct bp_location *bl, |
09ac7c10 TT |
8809 | struct address_space *aspace, CORE_ADDR bp_addr, |
8810 | const struct target_waitstatus *ws) | |
fe798b75 | 8811 | { |
b4d90040 PA |
8812 | struct exec_catchpoint *c = (struct exec_catchpoint *) bl->owner; |
8813 | ||
f90263c1 TT |
8814 | if (ws->kind != TARGET_WAITKIND_EXECD) |
8815 | return 0; | |
8816 | ||
8817 | c->exec_pathname = xstrdup (ws->value.execd_pathname); | |
8818 | return 1; | |
fe798b75 | 8819 | } |
c906108c | 8820 | |
fe798b75 | 8821 | static enum print_stop_action |
348d480f | 8822 | print_it_catch_exec (bpstat bs) |
fe798b75 | 8823 | { |
36dfb11c | 8824 | struct ui_out *uiout = current_uiout; |
348d480f | 8825 | struct breakpoint *b = bs->breakpoint_at; |
b4d90040 PA |
8826 | struct exec_catchpoint *c = (struct exec_catchpoint *) b; |
8827 | ||
fe798b75 | 8828 | annotate_catchpoint (b->number); |
36dfb11c TT |
8829 | if (b->disposition == disp_del) |
8830 | ui_out_text (uiout, "\nTemporary catchpoint "); | |
8831 | else | |
8832 | ui_out_text (uiout, "\nCatchpoint "); | |
8833 | if (ui_out_is_mi_like_p (uiout)) | |
8834 | { | |
8835 | ui_out_field_string (uiout, "reason", | |
8836 | async_reason_lookup (EXEC_ASYNC_EXEC)); | |
8837 | ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition)); | |
8838 | } | |
8839 | ui_out_field_int (uiout, "bkptno", b->number); | |
8840 | ui_out_text (uiout, " (exec'd "); | |
8841 | ui_out_field_string (uiout, "new-exec", c->exec_pathname); | |
8842 | ui_out_text (uiout, "), "); | |
8843 | ||
fe798b75 | 8844 | return PRINT_SRC_AND_LOC; |
c906108c SS |
8845 | } |
8846 | ||
fe798b75 | 8847 | static void |
a6d9a66e | 8848 | print_one_catch_exec (struct breakpoint *b, struct bp_location **last_loc) |
fe798b75 | 8849 | { |
b4d90040 | 8850 | struct exec_catchpoint *c = (struct exec_catchpoint *) b; |
fe798b75 | 8851 | struct value_print_options opts; |
79a45e25 | 8852 | struct ui_out *uiout = current_uiout; |
fe798b75 JB |
8853 | |
8854 | get_user_print_options (&opts); | |
8855 | ||
8856 | /* Field 4, the address, is omitted (which makes the columns | |
8857 | not line up too nicely with the headers, but the effect | |
8858 | is relatively readable). */ | |
8859 | if (opts.addressprint) | |
8860 | ui_out_field_skip (uiout, "addr"); | |
8861 | annotate_field (5); | |
8862 | ui_out_text (uiout, "exec"); | |
b4d90040 | 8863 | if (c->exec_pathname != NULL) |
fe798b75 JB |
8864 | { |
8865 | ui_out_text (uiout, ", program \""); | |
b4d90040 | 8866 | ui_out_field_string (uiout, "what", c->exec_pathname); |
fe798b75 JB |
8867 | ui_out_text (uiout, "\" "); |
8868 | } | |
8ac3646f TT |
8869 | |
8870 | if (ui_out_is_mi_like_p (uiout)) | |
8871 | ui_out_field_string (uiout, "catch-type", "exec"); | |
fe798b75 JB |
8872 | } |
8873 | ||
8874 | static void | |
8875 | print_mention_catch_exec (struct breakpoint *b) | |
8876 | { | |
8877 | printf_filtered (_("Catchpoint %d (exec)"), b->number); | |
8878 | } | |
8879 | ||
6149aea9 PA |
8880 | /* Implement the "print_recreate" breakpoint_ops method for exec |
8881 | catchpoints. */ | |
8882 | ||
8883 | static void | |
8884 | print_recreate_catch_exec (struct breakpoint *b, struct ui_file *fp) | |
8885 | { | |
8886 | fprintf_unfiltered (fp, "catch exec"); | |
d9b3f62e | 8887 | print_recreate_thread (b, fp); |
6149aea9 PA |
8888 | } |
8889 | ||
2060206e | 8890 | static struct breakpoint_ops catch_exec_breakpoint_ops; |
fe798b75 | 8891 | |
a96d9b2e SDJ |
8892 | static void |
8893 | create_syscall_event_catchpoint (int tempflag, VEC(int) *filter, | |
c0a91b2b | 8894 | const struct breakpoint_ops *ops) |
a96d9b2e | 8895 | { |
be5c67c1 | 8896 | struct syscall_catchpoint *c; |
a96d9b2e | 8897 | struct gdbarch *gdbarch = get_current_arch (); |
a96d9b2e | 8898 | |
be5c67c1 PA |
8899 | c = XNEW (struct syscall_catchpoint); |
8900 | init_catchpoint (&c->base, gdbarch, tempflag, NULL, ops); | |
8901 | c->syscalls_to_be_caught = filter; | |
a96d9b2e | 8902 | |
3ea46bff | 8903 | install_breakpoint (0, &c->base, 1); |
a96d9b2e SDJ |
8904 | } |
8905 | ||
c906108c | 8906 | static int |
fba45db2 | 8907 | hw_breakpoint_used_count (void) |
c906108c | 8908 | { |
c906108c | 8909 | int i = 0; |
f1310107 TJB |
8910 | struct breakpoint *b; |
8911 | struct bp_location *bl; | |
c906108c SS |
8912 | |
8913 | ALL_BREAKPOINTS (b) | |
c5aa993b | 8914 | { |
d6b74ac4 | 8915 | if (b->type == bp_hardware_breakpoint && breakpoint_enabled (b)) |
f1310107 TJB |
8916 | for (bl = b->loc; bl; bl = bl->next) |
8917 | { | |
8918 | /* Special types of hardware breakpoints may use more than | |
8919 | one register. */ | |
348d480f | 8920 | i += b->ops->resources_needed (bl); |
f1310107 | 8921 | } |
c5aa993b | 8922 | } |
c906108c SS |
8923 | |
8924 | return i; | |
8925 | } | |
8926 | ||
a1398e0c PA |
8927 | /* Returns the resources B would use if it were a hardware |
8928 | watchpoint. */ | |
8929 | ||
c906108c | 8930 | static int |
a1398e0c | 8931 | hw_watchpoint_use_count (struct breakpoint *b) |
c906108c | 8932 | { |
c906108c | 8933 | int i = 0; |
e09342b5 | 8934 | struct bp_location *bl; |
c906108c | 8935 | |
a1398e0c PA |
8936 | if (!breakpoint_enabled (b)) |
8937 | return 0; | |
8938 | ||
8939 | for (bl = b->loc; bl; bl = bl->next) | |
8940 | { | |
8941 | /* Special types of hardware watchpoints may use more than | |
8942 | one register. */ | |
8943 | i += b->ops->resources_needed (bl); | |
8944 | } | |
8945 | ||
8946 | return i; | |
8947 | } | |
8948 | ||
8949 | /* Returns the sum the used resources of all hardware watchpoints of | |
8950 | type TYPE in the breakpoints list. Also returns in OTHER_TYPE_USED | |
8951 | the sum of the used resources of all hardware watchpoints of other | |
8952 | types _not_ TYPE. */ | |
8953 | ||
8954 | static int | |
8955 | hw_watchpoint_used_count_others (struct breakpoint *except, | |
8956 | enum bptype type, int *other_type_used) | |
8957 | { | |
8958 | int i = 0; | |
8959 | struct breakpoint *b; | |
8960 | ||
c906108c SS |
8961 | *other_type_used = 0; |
8962 | ALL_BREAKPOINTS (b) | |
e09342b5 | 8963 | { |
a1398e0c PA |
8964 | if (b == except) |
8965 | continue; | |
e09342b5 TJB |
8966 | if (!breakpoint_enabled (b)) |
8967 | continue; | |
8968 | ||
a1398e0c PA |
8969 | if (b->type == type) |
8970 | i += hw_watchpoint_use_count (b); | |
8971 | else if (is_hardware_watchpoint (b)) | |
8972 | *other_type_used = 1; | |
e09342b5 TJB |
8973 | } |
8974 | ||
c906108c SS |
8975 | return i; |
8976 | } | |
8977 | ||
c906108c | 8978 | void |
fba45db2 | 8979 | disable_watchpoints_before_interactive_call_start (void) |
c906108c | 8980 | { |
c5aa993b | 8981 | struct breakpoint *b; |
c906108c SS |
8982 | |
8983 | ALL_BREAKPOINTS (b) | |
c5aa993b | 8984 | { |
cc60f2e3 | 8985 | if (is_watchpoint (b) && breakpoint_enabled (b)) |
c5aa993b | 8986 | { |
b5de0fa7 | 8987 | b->enable_state = bp_call_disabled; |
b60e7edf | 8988 | update_global_location_list (0); |
c5aa993b JM |
8989 | } |
8990 | } | |
c906108c SS |
8991 | } |
8992 | ||
8993 | void | |
fba45db2 | 8994 | enable_watchpoints_after_interactive_call_stop (void) |
c906108c | 8995 | { |
c5aa993b | 8996 | struct breakpoint *b; |
c906108c SS |
8997 | |
8998 | ALL_BREAKPOINTS (b) | |
c5aa993b | 8999 | { |
cc60f2e3 | 9000 | if (is_watchpoint (b) && b->enable_state == bp_call_disabled) |
c5aa993b | 9001 | { |
b5de0fa7 | 9002 | b->enable_state = bp_enabled; |
b60e7edf | 9003 | update_global_location_list (1); |
c5aa993b JM |
9004 | } |
9005 | } | |
c906108c SS |
9006 | } |
9007 | ||
8bea4e01 UW |
9008 | void |
9009 | disable_breakpoints_before_startup (void) | |
9010 | { | |
6c95b8df | 9011 | current_program_space->executing_startup = 1; |
f8eba3c6 | 9012 | update_global_location_list (0); |
8bea4e01 UW |
9013 | } |
9014 | ||
9015 | void | |
9016 | enable_breakpoints_after_startup (void) | |
9017 | { | |
6c95b8df | 9018 | current_program_space->executing_startup = 0; |
f8eba3c6 | 9019 | breakpoint_re_set (); |
8bea4e01 UW |
9020 | } |
9021 | ||
c906108c SS |
9022 | |
9023 | /* Set a breakpoint that will evaporate an end of command | |
9024 | at address specified by SAL. | |
9025 | Restrict it to frame FRAME if FRAME is nonzero. */ | |
9026 | ||
9027 | struct breakpoint * | |
a6d9a66e UW |
9028 | set_momentary_breakpoint (struct gdbarch *gdbarch, struct symtab_and_line sal, |
9029 | struct frame_id frame_id, enum bptype type) | |
c906108c | 9030 | { |
52f0bd74 | 9031 | struct breakpoint *b; |
edb3359d | 9032 | |
193facb3 JK |
9033 | /* If FRAME_ID is valid, it should be a real frame, not an inlined or |
9034 | tail-called one. */ | |
9035 | gdb_assert (!frame_id_artificial_p (frame_id)); | |
edb3359d | 9036 | |
06edf0c0 | 9037 | b = set_raw_breakpoint (gdbarch, sal, type, &momentary_breakpoint_ops); |
b5de0fa7 EZ |
9038 | b->enable_state = bp_enabled; |
9039 | b->disposition = disp_donttouch; | |
818dd999 | 9040 | b->frame_id = frame_id; |
c906108c | 9041 | |
4a64f543 MS |
9042 | /* If we're debugging a multi-threaded program, then we want |
9043 | momentary breakpoints to be active in only a single thread of | |
9044 | control. */ | |
39f77062 KB |
9045 | if (in_thread_list (inferior_ptid)) |
9046 | b->thread = pid_to_thread_id (inferior_ptid); | |
c906108c | 9047 | |
b60e7edf | 9048 | update_global_location_list_nothrow (1); |
74960c60 | 9049 | |
c906108c SS |
9050 | return b; |
9051 | } | |
611c83ae | 9052 | |
06edf0c0 PA |
9053 | /* Make a momentary breakpoint based on the master breakpoint ORIG. |
9054 | The new breakpoint will have type TYPE, and use OPS as it | |
9055 | breakpoint_ops. */ | |
e58b0e63 | 9056 | |
06edf0c0 PA |
9057 | static struct breakpoint * |
9058 | momentary_breakpoint_from_master (struct breakpoint *orig, | |
9059 | enum bptype type, | |
c0a91b2b | 9060 | const struct breakpoint_ops *ops) |
e58b0e63 PA |
9061 | { |
9062 | struct breakpoint *copy; | |
9063 | ||
06edf0c0 | 9064 | copy = set_raw_breakpoint_without_location (orig->gdbarch, type, ops); |
e58b0e63 | 9065 | copy->loc = allocate_bp_location (copy); |
0e30163f | 9066 | set_breakpoint_location_function (copy->loc, 1); |
e58b0e63 | 9067 | |
a6d9a66e | 9068 | copy->loc->gdbarch = orig->loc->gdbarch; |
e58b0e63 PA |
9069 | copy->loc->requested_address = orig->loc->requested_address; |
9070 | copy->loc->address = orig->loc->address; | |
9071 | copy->loc->section = orig->loc->section; | |
6c95b8df | 9072 | copy->loc->pspace = orig->loc->pspace; |
55aa24fb | 9073 | copy->loc->probe = orig->loc->probe; |
f8eba3c6 | 9074 | copy->loc->line_number = orig->loc->line_number; |
2f202fde | 9075 | copy->loc->symtab = orig->loc->symtab; |
e58b0e63 PA |
9076 | copy->frame_id = orig->frame_id; |
9077 | copy->thread = orig->thread; | |
6c95b8df | 9078 | copy->pspace = orig->pspace; |
e58b0e63 PA |
9079 | |
9080 | copy->enable_state = bp_enabled; | |
9081 | copy->disposition = disp_donttouch; | |
9082 | copy->number = internal_breakpoint_number--; | |
9083 | ||
9084 | update_global_location_list_nothrow (0); | |
9085 | return copy; | |
9086 | } | |
9087 | ||
06edf0c0 PA |
9088 | /* Make a deep copy of momentary breakpoint ORIG. Returns NULL if |
9089 | ORIG is NULL. */ | |
9090 | ||
9091 | struct breakpoint * | |
9092 | clone_momentary_breakpoint (struct breakpoint *orig) | |
9093 | { | |
9094 | /* If there's nothing to clone, then return nothing. */ | |
9095 | if (orig == NULL) | |
9096 | return NULL; | |
9097 | ||
9098 | return momentary_breakpoint_from_master (orig, orig->type, orig->ops); | |
9099 | } | |
9100 | ||
611c83ae | 9101 | struct breakpoint * |
a6d9a66e UW |
9102 | set_momentary_breakpoint_at_pc (struct gdbarch *gdbarch, CORE_ADDR pc, |
9103 | enum bptype type) | |
611c83ae PA |
9104 | { |
9105 | struct symtab_and_line sal; | |
9106 | ||
9107 | sal = find_pc_line (pc, 0); | |
9108 | sal.pc = pc; | |
9109 | sal.section = find_pc_overlay (pc); | |
9110 | sal.explicit_pc = 1; | |
9111 | ||
a6d9a66e | 9112 | return set_momentary_breakpoint (gdbarch, sal, null_frame_id, type); |
611c83ae | 9113 | } |
c906108c | 9114 | \f |
c5aa993b | 9115 | |
c906108c SS |
9116 | /* Tell the user we have just set a breakpoint B. */ |
9117 | ||
9118 | static void | |
fba45db2 | 9119 | mention (struct breakpoint *b) |
c906108c | 9120 | { |
348d480f | 9121 | b->ops->print_mention (b); |
79a45e25 | 9122 | if (ui_out_is_mi_like_p (current_uiout)) |
fb40c209 | 9123 | return; |
c906108c SS |
9124 | printf_filtered ("\n"); |
9125 | } | |
c906108c | 9126 | \f |
c5aa993b | 9127 | |
0d381245 | 9128 | static struct bp_location * |
39d61571 | 9129 | add_location_to_breakpoint (struct breakpoint *b, |
0d381245 VP |
9130 | const struct symtab_and_line *sal) |
9131 | { | |
9132 | struct bp_location *loc, **tmp; | |
3742cc8b YQ |
9133 | CORE_ADDR adjusted_address; |
9134 | struct gdbarch *loc_gdbarch = get_sal_arch (*sal); | |
9135 | ||
9136 | if (loc_gdbarch == NULL) | |
9137 | loc_gdbarch = b->gdbarch; | |
9138 | ||
9139 | /* Adjust the breakpoint's address prior to allocating a location. | |
9140 | Once we call allocate_bp_location(), that mostly uninitialized | |
9141 | location will be placed on the location chain. Adjustment of the | |
9142 | breakpoint may cause target_read_memory() to be called and we do | |
9143 | not want its scan of the location chain to find a breakpoint and | |
9144 | location that's only been partially initialized. */ | |
9145 | adjusted_address = adjust_breakpoint_address (loc_gdbarch, | |
9146 | sal->pc, b->type); | |
0d381245 | 9147 | |
d30113d4 | 9148 | /* Sort the locations by their ADDRESS. */ |
39d61571 | 9149 | loc = allocate_bp_location (b); |
d30113d4 JK |
9150 | for (tmp = &(b->loc); *tmp != NULL && (*tmp)->address <= adjusted_address; |
9151 | tmp = &((*tmp)->next)) | |
0d381245 | 9152 | ; |
d30113d4 | 9153 | loc->next = *tmp; |
0d381245 | 9154 | *tmp = loc; |
3742cc8b | 9155 | |
0d381245 | 9156 | loc->requested_address = sal->pc; |
3742cc8b | 9157 | loc->address = adjusted_address; |
6c95b8df | 9158 | loc->pspace = sal->pspace; |
729662a5 TT |
9159 | loc->probe.probe = sal->probe; |
9160 | loc->probe.objfile = sal->objfile; | |
6c95b8df | 9161 | gdb_assert (loc->pspace != NULL); |
0d381245 | 9162 | loc->section = sal->section; |
3742cc8b | 9163 | loc->gdbarch = loc_gdbarch; |
f8eba3c6 | 9164 | loc->line_number = sal->line; |
2f202fde | 9165 | loc->symtab = sal->symtab; |
f8eba3c6 | 9166 | |
0e30163f JK |
9167 | set_breakpoint_location_function (loc, |
9168 | sal->explicit_pc || sal->explicit_line); | |
0d381245 VP |
9169 | return loc; |
9170 | } | |
514f746b AR |
9171 | \f |
9172 | ||
9173 | /* Return 1 if LOC is pointing to a permanent breakpoint, | |
9174 | return 0 otherwise. */ | |
9175 | ||
9176 | static int | |
9177 | bp_loc_is_permanent (struct bp_location *loc) | |
9178 | { | |
9179 | int len; | |
9180 | CORE_ADDR addr; | |
1afeeb75 | 9181 | const gdb_byte *bpoint; |
514f746b | 9182 | gdb_byte *target_mem; |
939c61fa JK |
9183 | struct cleanup *cleanup; |
9184 | int retval = 0; | |
514f746b AR |
9185 | |
9186 | gdb_assert (loc != NULL); | |
9187 | ||
9188 | addr = loc->address; | |
1afeeb75 | 9189 | bpoint = gdbarch_breakpoint_from_pc (loc->gdbarch, &addr, &len); |
514f746b | 9190 | |
939c61fa | 9191 | /* Software breakpoints unsupported? */ |
1afeeb75 | 9192 | if (bpoint == NULL) |
939c61fa JK |
9193 | return 0; |
9194 | ||
514f746b AR |
9195 | target_mem = alloca (len); |
9196 | ||
939c61fa JK |
9197 | /* Enable the automatic memory restoration from breakpoints while |
9198 | we read the memory. Otherwise we could say about our temporary | |
9199 | breakpoints they are permanent. */ | |
6c95b8df PA |
9200 | cleanup = save_current_space_and_thread (); |
9201 | ||
9202 | switch_to_program_space_and_thread (loc->pspace); | |
9203 | make_show_memory_breakpoints_cleanup (0); | |
939c61fa | 9204 | |
514f746b | 9205 | if (target_read_memory (loc->address, target_mem, len) == 0 |
1afeeb75 | 9206 | && memcmp (target_mem, bpoint, len) == 0) |
939c61fa | 9207 | retval = 1; |
514f746b | 9208 | |
939c61fa JK |
9209 | do_cleanups (cleanup); |
9210 | ||
9211 | return retval; | |
514f746b AR |
9212 | } |
9213 | ||
e7e0cddf SS |
9214 | /* Build a command list for the dprintf corresponding to the current |
9215 | settings of the dprintf style options. */ | |
9216 | ||
9217 | static void | |
9218 | update_dprintf_command_list (struct breakpoint *b) | |
9219 | { | |
9220 | char *dprintf_args = b->extra_string; | |
9221 | char *printf_line = NULL; | |
9222 | ||
9223 | if (!dprintf_args) | |
9224 | return; | |
9225 | ||
9226 | dprintf_args = skip_spaces (dprintf_args); | |
9227 | ||
9228 | /* Allow a comma, as it may have terminated a location, but don't | |
9229 | insist on it. */ | |
9230 | if (*dprintf_args == ',') | |
9231 | ++dprintf_args; | |
9232 | dprintf_args = skip_spaces (dprintf_args); | |
9233 | ||
9234 | if (*dprintf_args != '"') | |
9235 | error (_("Bad format string, missing '\"'.")); | |
9236 | ||
d3ce09f5 | 9237 | if (strcmp (dprintf_style, dprintf_style_gdb) == 0) |
e7e0cddf | 9238 | printf_line = xstrprintf ("printf %s", dprintf_args); |
d3ce09f5 | 9239 | else if (strcmp (dprintf_style, dprintf_style_call) == 0) |
e7e0cddf SS |
9240 | { |
9241 | if (!dprintf_function) | |
9242 | error (_("No function supplied for dprintf call")); | |
9243 | ||
9244 | if (dprintf_channel && strlen (dprintf_channel) > 0) | |
9245 | printf_line = xstrprintf ("call (void) %s (%s,%s)", | |
9246 | dprintf_function, | |
9247 | dprintf_channel, | |
9248 | dprintf_args); | |
9249 | else | |
9250 | printf_line = xstrprintf ("call (void) %s (%s)", | |
9251 | dprintf_function, | |
9252 | dprintf_args); | |
9253 | } | |
d3ce09f5 SS |
9254 | else if (strcmp (dprintf_style, dprintf_style_agent) == 0) |
9255 | { | |
9256 | if (target_can_run_breakpoint_commands ()) | |
9257 | printf_line = xstrprintf ("agent-printf %s", dprintf_args); | |
9258 | else | |
9259 | { | |
9260 | warning (_("Target cannot run dprintf commands, falling back to GDB printf")); | |
9261 | printf_line = xstrprintf ("printf %s", dprintf_args); | |
9262 | } | |
9263 | } | |
e7e0cddf SS |
9264 | else |
9265 | internal_error (__FILE__, __LINE__, | |
9266 | _("Invalid dprintf style.")); | |
9267 | ||
f28045c2 | 9268 | gdb_assert (printf_line != NULL); |
9d6e6e84 | 9269 | /* Manufacture a printf sequence. */ |
f28045c2 | 9270 | { |
9d6e6e84 HZ |
9271 | struct command_line *printf_cmd_line |
9272 | = xmalloc (sizeof (struct command_line)); | |
e7e0cddf | 9273 | |
f28045c2 YQ |
9274 | printf_cmd_line = xmalloc (sizeof (struct command_line)); |
9275 | printf_cmd_line->control_type = simple_control; | |
9276 | printf_cmd_line->body_count = 0; | |
9277 | printf_cmd_line->body_list = NULL; | |
9d6e6e84 | 9278 | printf_cmd_line->next = NULL; |
f28045c2 | 9279 | printf_cmd_line->line = printf_line; |
e7e0cddf | 9280 | |
f28045c2 YQ |
9281 | breakpoint_set_commands (b, printf_cmd_line); |
9282 | } | |
e7e0cddf SS |
9283 | } |
9284 | ||
9285 | /* Update all dprintf commands, making their command lists reflect | |
9286 | current style settings. */ | |
9287 | ||
9288 | static void | |
9289 | update_dprintf_commands (char *args, int from_tty, | |
9290 | struct cmd_list_element *c) | |
9291 | { | |
9292 | struct breakpoint *b; | |
9293 | ||
9294 | ALL_BREAKPOINTS (b) | |
9295 | { | |
9296 | if (b->type == bp_dprintf) | |
9297 | update_dprintf_command_list (b); | |
9298 | } | |
9299 | } | |
c3f6f71d | 9300 | |
018d34a4 VP |
9301 | /* Create a breakpoint with SAL as location. Use ADDR_STRING |
9302 | as textual description of the location, and COND_STRING | |
db107f19 | 9303 | as condition expression. */ |
018d34a4 VP |
9304 | |
9305 | static void | |
d9b3f62e PA |
9306 | init_breakpoint_sal (struct breakpoint *b, struct gdbarch *gdbarch, |
9307 | struct symtabs_and_lines sals, char *addr_string, | |
f8eba3c6 | 9308 | char *filter, char *cond_string, |
e7e0cddf | 9309 | char *extra_string, |
d9b3f62e PA |
9310 | enum bptype type, enum bpdisp disposition, |
9311 | int thread, int task, int ignore_count, | |
c0a91b2b | 9312 | const struct breakpoint_ops *ops, int from_tty, |
44f238bb PA |
9313 | int enabled, int internal, unsigned flags, |
9314 | int display_canonical) | |
018d34a4 | 9315 | { |
0d381245 | 9316 | int i; |
018d34a4 VP |
9317 | |
9318 | if (type == bp_hardware_breakpoint) | |
9319 | { | |
fbbd034e AS |
9320 | int target_resources_ok; |
9321 | ||
9322 | i = hw_breakpoint_used_count (); | |
9323 | target_resources_ok = | |
9324 | target_can_use_hardware_watchpoint (bp_hardware_breakpoint, | |
018d34a4 VP |
9325 | i + 1, 0); |
9326 | if (target_resources_ok == 0) | |
9327 | error (_("No hardware breakpoint support in the target.")); | |
9328 | else if (target_resources_ok < 0) | |
9329 | error (_("Hardware breakpoints used exceeds limit.")); | |
9330 | } | |
9331 | ||
6c95b8df PA |
9332 | gdb_assert (sals.nelts > 0); |
9333 | ||
0d381245 VP |
9334 | for (i = 0; i < sals.nelts; ++i) |
9335 | { | |
9336 | struct symtab_and_line sal = sals.sals[i]; | |
9337 | struct bp_location *loc; | |
9338 | ||
9339 | if (from_tty) | |
5af949e3 UW |
9340 | { |
9341 | struct gdbarch *loc_gdbarch = get_sal_arch (sal); | |
9342 | if (!loc_gdbarch) | |
9343 | loc_gdbarch = gdbarch; | |
9344 | ||
9345 | describe_other_breakpoints (loc_gdbarch, | |
6c95b8df | 9346 | sal.pspace, sal.pc, sal.section, thread); |
5af949e3 | 9347 | } |
0d381245 VP |
9348 | |
9349 | if (i == 0) | |
9350 | { | |
d9b3f62e | 9351 | init_raw_breakpoint (b, gdbarch, sal, type, ops); |
0d381245 | 9352 | b->thread = thread; |
4a306c9a | 9353 | b->task = task; |
855a6e68 | 9354 | |
0d381245 | 9355 | b->cond_string = cond_string; |
e7e0cddf | 9356 | b->extra_string = extra_string; |
0d381245 | 9357 | b->ignore_count = ignore_count; |
41447f92 | 9358 | b->enable_state = enabled ? bp_enabled : bp_disabled; |
0d381245 | 9359 | b->disposition = disposition; |
6c95b8df | 9360 | |
44f238bb PA |
9361 | if ((flags & CREATE_BREAKPOINT_FLAGS_INSERTED) != 0) |
9362 | b->loc->inserted = 1; | |
9363 | ||
0fb4aa4b PA |
9364 | if (type == bp_static_tracepoint) |
9365 | { | |
d9b3f62e | 9366 | struct tracepoint *t = (struct tracepoint *) b; |
0fb4aa4b PA |
9367 | struct static_tracepoint_marker marker; |
9368 | ||
983af33b | 9369 | if (strace_marker_p (b)) |
0fb4aa4b PA |
9370 | { |
9371 | /* We already know the marker exists, otherwise, we | |
9372 | wouldn't see a sal for it. */ | |
9373 | char *p = &addr_string[3]; | |
9374 | char *endp; | |
9375 | char *marker_str; | |
0fb4aa4b | 9376 | |
e9cafbcc | 9377 | p = skip_spaces (p); |
0fb4aa4b | 9378 | |
e9cafbcc | 9379 | endp = skip_to_space (p); |
0fb4aa4b PA |
9380 | |
9381 | marker_str = savestring (p, endp - p); | |
d9b3f62e | 9382 | t->static_trace_marker_id = marker_str; |
0fb4aa4b | 9383 | |
3e43a32a MS |
9384 | printf_filtered (_("Probed static tracepoint " |
9385 | "marker \"%s\"\n"), | |
d9b3f62e | 9386 | t->static_trace_marker_id); |
0fb4aa4b PA |
9387 | } |
9388 | else if (target_static_tracepoint_marker_at (sal.pc, &marker)) | |
9389 | { | |
d9b3f62e | 9390 | t->static_trace_marker_id = xstrdup (marker.str_id); |
0fb4aa4b PA |
9391 | release_static_tracepoint_marker (&marker); |
9392 | ||
3e43a32a MS |
9393 | printf_filtered (_("Probed static tracepoint " |
9394 | "marker \"%s\"\n"), | |
d9b3f62e | 9395 | t->static_trace_marker_id); |
0fb4aa4b PA |
9396 | } |
9397 | else | |
3e43a32a MS |
9398 | warning (_("Couldn't determine the static " |
9399 | "tracepoint marker to probe")); | |
0fb4aa4b PA |
9400 | } |
9401 | ||
0d381245 VP |
9402 | loc = b->loc; |
9403 | } | |
9404 | else | |
018d34a4 | 9405 | { |
39d61571 | 9406 | loc = add_location_to_breakpoint (b, &sal); |
44f238bb PA |
9407 | if ((flags & CREATE_BREAKPOINT_FLAGS_INSERTED) != 0) |
9408 | loc->inserted = 1; | |
0d381245 VP |
9409 | } |
9410 | ||
514f746b AR |
9411 | if (bp_loc_is_permanent (loc)) |
9412 | make_breakpoint_permanent (b); | |
9413 | ||
0d381245 VP |
9414 | if (b->cond_string) |
9415 | { | |
bbc13ae3 KS |
9416 | const char *arg = b->cond_string; |
9417 | ||
1bb9788d TT |
9418 | loc->cond = parse_exp_1 (&arg, loc->address, |
9419 | block_for_pc (loc->address), 0); | |
0d381245 | 9420 | if (*arg) |
588ae58c | 9421 | error (_("Garbage '%s' follows condition"), arg); |
018d34a4 | 9422 | } |
e7e0cddf SS |
9423 | |
9424 | /* Dynamic printf requires and uses additional arguments on the | |
9425 | command line, otherwise it's an error. */ | |
9426 | if (type == bp_dprintf) | |
9427 | { | |
9428 | if (b->extra_string) | |
9429 | update_dprintf_command_list (b); | |
9430 | else | |
9431 | error (_("Format string required")); | |
9432 | } | |
9433 | else if (b->extra_string) | |
588ae58c | 9434 | error (_("Garbage '%s' at end of command"), b->extra_string); |
855a6e68 | 9435 | } |
018d34a4 | 9436 | |
56435ebe | 9437 | b->display_canonical = display_canonical; |
018d34a4 VP |
9438 | if (addr_string) |
9439 | b->addr_string = addr_string; | |
9440 | else | |
9441 | /* addr_string has to be used or breakpoint_re_set will delete | |
9442 | me. */ | |
5af949e3 UW |
9443 | b->addr_string |
9444 | = xstrprintf ("*%s", paddress (b->loc->gdbarch, b->loc->address)); | |
f8eba3c6 | 9445 | b->filter = filter; |
d9b3f62e | 9446 | } |
018d34a4 | 9447 | |
d9b3f62e PA |
9448 | static void |
9449 | create_breakpoint_sal (struct gdbarch *gdbarch, | |
9450 | struct symtabs_and_lines sals, char *addr_string, | |
f8eba3c6 | 9451 | char *filter, char *cond_string, |
e7e0cddf | 9452 | char *extra_string, |
d9b3f62e PA |
9453 | enum bptype type, enum bpdisp disposition, |
9454 | int thread, int task, int ignore_count, | |
c0a91b2b | 9455 | const struct breakpoint_ops *ops, int from_tty, |
44f238bb PA |
9456 | int enabled, int internal, unsigned flags, |
9457 | int display_canonical) | |
d9b3f62e PA |
9458 | { |
9459 | struct breakpoint *b; | |
9460 | struct cleanup *old_chain; | |
9461 | ||
9462 | if (is_tracepoint_type (type)) | |
9463 | { | |
9464 | struct tracepoint *t; | |
9465 | ||
9466 | t = XCNEW (struct tracepoint); | |
9467 | b = &t->base; | |
9468 | } | |
9469 | else | |
9470 | b = XNEW (struct breakpoint); | |
9471 | ||
9472 | old_chain = make_cleanup (xfree, b); | |
9473 | ||
9474 | init_breakpoint_sal (b, gdbarch, | |
9475 | sals, addr_string, | |
e7e0cddf | 9476 | filter, cond_string, extra_string, |
d9b3f62e PA |
9477 | type, disposition, |
9478 | thread, task, ignore_count, | |
9479 | ops, from_tty, | |
44f238bb PA |
9480 | enabled, internal, flags, |
9481 | display_canonical); | |
d9b3f62e PA |
9482 | discard_cleanups (old_chain); |
9483 | ||
3ea46bff | 9484 | install_breakpoint (internal, b, 0); |
018d34a4 VP |
9485 | } |
9486 | ||
9487 | /* Add SALS.nelts breakpoints to the breakpoint table. For each | |
9488 | SALS.sal[i] breakpoint, include the corresponding ADDR_STRING[i] | |
9489 | value. COND_STRING, if not NULL, specified the condition to be | |
9490 | used for all breakpoints. Essentially the only case where | |
9491 | SALS.nelts is not 1 is when we set a breakpoint on an overloaded | |
9492 | function. In that case, it's still not possible to specify | |
9493 | separate conditions for different overloaded functions, so | |
9494 | we take just a single condition string. | |
9495 | ||
c3f6f71d | 9496 | NOTE: If the function succeeds, the caller is expected to cleanup |
018d34a4 | 9497 | the arrays ADDR_STRING, COND_STRING, and SALS (but not the |
c3f6f71d JM |
9498 | array contents). If the function fails (error() is called), the |
9499 | caller is expected to cleanups both the ADDR_STRING, COND_STRING, | |
4a64f543 | 9500 | COND and SALS arrays and each of those arrays contents. */ |
c906108c SS |
9501 | |
9502 | static void | |
8cdf0e15 | 9503 | create_breakpoints_sal (struct gdbarch *gdbarch, |
7efd8fc2 | 9504 | struct linespec_result *canonical, |
e7e0cddf | 9505 | char *cond_string, char *extra_string, |
8cdf0e15 VP |
9506 | enum bptype type, enum bpdisp disposition, |
9507 | int thread, int task, int ignore_count, | |
c0a91b2b | 9508 | const struct breakpoint_ops *ops, int from_tty, |
44f238bb | 9509 | int enabled, int internal, unsigned flags) |
c906108c | 9510 | { |
018d34a4 | 9511 | int i; |
f8eba3c6 | 9512 | struct linespec_sals *lsal; |
cc59ec59 | 9513 | |
f8eba3c6 TT |
9514 | if (canonical->pre_expanded) |
9515 | gdb_assert (VEC_length (linespec_sals, canonical->sals) == 1); | |
9516 | ||
9517 | for (i = 0; VEC_iterate (linespec_sals, canonical->sals, i, lsal); ++i) | |
c3f6f71d | 9518 | { |
f8eba3c6 TT |
9519 | /* Note that 'addr_string' can be NULL in the case of a plain |
9520 | 'break', without arguments. */ | |
9521 | char *addr_string = (canonical->addr_string | |
9522 | ? xstrdup (canonical->addr_string) | |
9523 | : NULL); | |
9524 | char *filter_string = lsal->canonical ? xstrdup (lsal->canonical) : NULL; | |
9525 | struct cleanup *inner = make_cleanup (xfree, addr_string); | |
0d381245 | 9526 | |
f8eba3c6 TT |
9527 | make_cleanup (xfree, filter_string); |
9528 | create_breakpoint_sal (gdbarch, lsal->sals, | |
9529 | addr_string, | |
9530 | filter_string, | |
e7e0cddf SS |
9531 | cond_string, extra_string, |
9532 | type, disposition, | |
84f4c1fe | 9533 | thread, task, ignore_count, ops, |
44f238bb | 9534 | from_tty, enabled, internal, flags, |
56435ebe | 9535 | canonical->special_display); |
f8eba3c6 | 9536 | discard_cleanups (inner); |
c3f6f71d | 9537 | } |
c3f6f71d | 9538 | } |
c906108c | 9539 | |
9998af43 | 9540 | /* Parse ADDRESS which is assumed to be a SAL specification possibly |
c3f6f71d | 9541 | followed by conditionals. On return, SALS contains an array of SAL |
4a64f543 | 9542 | addresses found. ADDR_STRING contains a vector of (canonical) |
9998af43 TJB |
9543 | address strings. ADDRESS points to the end of the SAL. |
9544 | ||
9545 | The array and the line spec strings are allocated on the heap, it is | |
9546 | the caller's responsibility to free them. */ | |
c906108c | 9547 | |
b9362cc7 | 9548 | static void |
c3f6f71d | 9549 | parse_breakpoint_sals (char **address, |
58438ac1 | 9550 | struct linespec_result *canonical) |
c3f6f71d | 9551 | { |
c3f6f71d | 9552 | /* If no arg given, or if first arg is 'if ', use the default |
4a64f543 | 9553 | breakpoint. */ |
c3f6f71d JM |
9554 | if ((*address) == NULL |
9555 | || (strncmp ((*address), "if", 2) == 0 && isspace ((*address)[2]))) | |
c906108c | 9556 | { |
1bfeeb0f JL |
9557 | /* The last displayed codepoint, if it's valid, is our default breakpoint |
9558 | address. */ | |
9559 | if (last_displayed_sal_is_valid ()) | |
c906108c | 9560 | { |
f8eba3c6 | 9561 | struct linespec_sals lsal; |
c3f6f71d | 9562 | struct symtab_and_line sal; |
1c8cdcb1 | 9563 | CORE_ADDR pc; |
cc59ec59 | 9564 | |
4a64f543 | 9565 | init_sal (&sal); /* Initialize to zeroes. */ |
f8eba3c6 | 9566 | lsal.sals.sals = (struct symtab_and_line *) |
c906108c | 9567 | xmalloc (sizeof (struct symtab_and_line)); |
1bfeeb0f JL |
9568 | |
9569 | /* Set sal's pspace, pc, symtab, and line to the values | |
1c8cdcb1 JK |
9570 | corresponding to the last call to print_frame_info. |
9571 | Be sure to reinitialize LINE with NOTCURRENT == 0 | |
9572 | as the breakpoint line number is inappropriate otherwise. | |
9573 | find_pc_line would adjust PC, re-set it back. */ | |
1bfeeb0f | 9574 | get_last_displayed_sal (&sal); |
1c8cdcb1 JK |
9575 | pc = sal.pc; |
9576 | sal = find_pc_line (pc, 0); | |
00903456 | 9577 | |
4a64f543 | 9578 | /* "break" without arguments is equivalent to "break *PC" |
1bfeeb0f JL |
9579 | where PC is the last displayed codepoint's address. So |
9580 | make sure to set sal.explicit_pc to prevent GDB from | |
9581 | trying to expand the list of sals to include all other | |
9582 | instances with the same symtab and line. */ | |
1c8cdcb1 | 9583 | sal.pc = pc; |
00903456 JK |
9584 | sal.explicit_pc = 1; |
9585 | ||
f8eba3c6 TT |
9586 | lsal.sals.sals[0] = sal; |
9587 | lsal.sals.nelts = 1; | |
9588 | lsal.canonical = NULL; | |
9589 | ||
9590 | VEC_safe_push (linespec_sals, canonical->sals, &lsal); | |
c906108c SS |
9591 | } |
9592 | else | |
8a3fe4f8 | 9593 | error (_("No default breakpoint address now.")); |
c906108c SS |
9594 | } |
9595 | else | |
9596 | { | |
cc80f267 JK |
9597 | struct symtab_and_line cursal = get_current_source_symtab_and_line (); |
9598 | ||
c906108c | 9599 | /* Force almost all breakpoints to be in terms of the |
4a64f543 MS |
9600 | current_source_symtab (which is decode_line_1's default). |
9601 | This should produce the results we want almost all of the | |
cc80f267 JK |
9602 | time while leaving default_breakpoint_* alone. |
9603 | ||
9604 | ObjC: However, don't match an Objective-C method name which | |
9605 | may have a '+' or '-' succeeded by a '['. */ | |
9606 | if (last_displayed_sal_is_valid () | |
9607 | && (!cursal.symtab | |
9608 | || ((strchr ("+-", (*address)[0]) != NULL) | |
9609 | && ((*address)[1] != '[')))) | |
f8eba3c6 TT |
9610 | decode_line_full (address, DECODE_LINE_FUNFIRSTLINE, |
9611 | get_last_displayed_symtab (), | |
9612 | get_last_displayed_line (), | |
9613 | canonical, NULL, NULL); | |
c906108c | 9614 | else |
f8eba3c6 | 9615 | decode_line_full (address, DECODE_LINE_FUNFIRSTLINE, |
cc80f267 | 9616 | cursal.symtab, cursal.line, canonical, NULL, NULL); |
c906108c | 9617 | } |
c3f6f71d | 9618 | } |
c906108c | 9619 | |
c906108c | 9620 | |
c3f6f71d | 9621 | /* Convert each SAL into a real PC. Verify that the PC can be |
4a64f543 | 9622 | inserted as a breakpoint. If it can't throw an error. */ |
c906108c | 9623 | |
b9362cc7 | 9624 | static void |
23e7acfb | 9625 | breakpoint_sals_to_pc (struct symtabs_and_lines *sals) |
c3f6f71d JM |
9626 | { |
9627 | int i; | |
cc59ec59 | 9628 | |
c3f6f71d | 9629 | for (i = 0; i < sals->nelts; i++) |
ee53e872 | 9630 | resolve_sal_pc (&sals->sals[i]); |
c3f6f71d JM |
9631 | } |
9632 | ||
7a697b8d SS |
9633 | /* Fast tracepoints may have restrictions on valid locations. For |
9634 | instance, a fast tracepoint using a jump instead of a trap will | |
9635 | likely have to overwrite more bytes than a trap would, and so can | |
9636 | only be placed where the instruction is longer than the jump, or a | |
9637 | multi-instruction sequence does not have a jump into the middle of | |
9638 | it, etc. */ | |
9639 | ||
9640 | static void | |
9641 | check_fast_tracepoint_sals (struct gdbarch *gdbarch, | |
9642 | struct symtabs_and_lines *sals) | |
9643 | { | |
9644 | int i, rslt; | |
9645 | struct symtab_and_line *sal; | |
9646 | char *msg; | |
9647 | struct cleanup *old_chain; | |
9648 | ||
9649 | for (i = 0; i < sals->nelts; i++) | |
9650 | { | |
f8eba3c6 TT |
9651 | struct gdbarch *sarch; |
9652 | ||
7a697b8d SS |
9653 | sal = &sals->sals[i]; |
9654 | ||
f8eba3c6 TT |
9655 | sarch = get_sal_arch (*sal); |
9656 | /* We fall back to GDBARCH if there is no architecture | |
9657 | associated with SAL. */ | |
9658 | if (sarch == NULL) | |
9659 | sarch = gdbarch; | |
9660 | rslt = gdbarch_fast_tracepoint_valid_at (sarch, sal->pc, | |
7a697b8d SS |
9661 | NULL, &msg); |
9662 | old_chain = make_cleanup (xfree, msg); | |
9663 | ||
9664 | if (!rslt) | |
9665 | error (_("May not have a fast tracepoint at 0x%s%s"), | |
f8eba3c6 | 9666 | paddress (sarch, sal->pc), (msg ? msg : "")); |
7a697b8d SS |
9667 | |
9668 | do_cleanups (old_chain); | |
9669 | } | |
9670 | } | |
9671 | ||
af4908ba KS |
9672 | /* Issue an invalid thread ID error. */ |
9673 | ||
9674 | static void ATTRIBUTE_NORETURN | |
9675 | invalid_thread_id_error (int id) | |
9676 | { | |
9677 | error (_("Unknown thread %d."), id); | |
9678 | } | |
9679 | ||
018d34a4 VP |
9680 | /* Given TOK, a string specification of condition and thread, as |
9681 | accepted by the 'break' command, extract the condition | |
9682 | string and thread number and set *COND_STRING and *THREAD. | |
4a64f543 | 9683 | PC identifies the context at which the condition should be parsed. |
018d34a4 VP |
9684 | If no condition is found, *COND_STRING is set to NULL. |
9685 | If no thread is found, *THREAD is set to -1. */ | |
d634f2de JB |
9686 | |
9687 | static void | |
bbc13ae3 | 9688 | find_condition_and_thread (const char *tok, CORE_ADDR pc, |
e7e0cddf SS |
9689 | char **cond_string, int *thread, int *task, |
9690 | char **rest) | |
018d34a4 VP |
9691 | { |
9692 | *cond_string = NULL; | |
9693 | *thread = -1; | |
ed1d1739 KS |
9694 | *task = 0; |
9695 | *rest = NULL; | |
9696 | ||
018d34a4 VP |
9697 | while (tok && *tok) |
9698 | { | |
bbc13ae3 | 9699 | const char *end_tok; |
018d34a4 | 9700 | int toklen; |
bbc13ae3 KS |
9701 | const char *cond_start = NULL; |
9702 | const char *cond_end = NULL; | |
cc59ec59 | 9703 | |
bbc13ae3 | 9704 | tok = skip_spaces_const (tok); |
e7e0cddf SS |
9705 | |
9706 | if ((*tok == '"' || *tok == ',') && rest) | |
9707 | { | |
9708 | *rest = savestring (tok, strlen (tok)); | |
9709 | return; | |
9710 | } | |
9711 | ||
bbc13ae3 | 9712 | end_tok = skip_to_space_const (tok); |
d634f2de | 9713 | |
018d34a4 | 9714 | toklen = end_tok - tok; |
d634f2de | 9715 | |
018d34a4 VP |
9716 | if (toklen >= 1 && strncmp (tok, "if", toklen) == 0) |
9717 | { | |
f7545552 TT |
9718 | struct expression *expr; |
9719 | ||
018d34a4 | 9720 | tok = cond_start = end_tok + 1; |
1bb9788d | 9721 | expr = parse_exp_1 (&tok, pc, block_for_pc (pc), 0); |
f7545552 | 9722 | xfree (expr); |
018d34a4 | 9723 | cond_end = tok; |
d634f2de | 9724 | *cond_string = savestring (cond_start, cond_end - cond_start); |
018d34a4 VP |
9725 | } |
9726 | else if (toklen >= 1 && strncmp (tok, "thread", toklen) == 0) | |
9727 | { | |
9728 | char *tmptok; | |
d634f2de | 9729 | |
018d34a4 | 9730 | tok = end_tok + 1; |
bbc13ae3 | 9731 | *thread = strtol (tok, &tmptok, 0); |
018d34a4 VP |
9732 | if (tok == tmptok) |
9733 | error (_("Junk after thread keyword.")); | |
9734 | if (!valid_thread_id (*thread)) | |
af4908ba | 9735 | invalid_thread_id_error (*thread); |
bbc13ae3 | 9736 | tok = tmptok; |
018d34a4 | 9737 | } |
4a306c9a JB |
9738 | else if (toklen >= 1 && strncmp (tok, "task", toklen) == 0) |
9739 | { | |
9740 | char *tmptok; | |
9741 | ||
9742 | tok = end_tok + 1; | |
bbc13ae3 | 9743 | *task = strtol (tok, &tmptok, 0); |
4a306c9a JB |
9744 | if (tok == tmptok) |
9745 | error (_("Junk after task keyword.")); | |
9746 | if (!valid_task_id (*task)) | |
b6199126 | 9747 | error (_("Unknown task %d."), *task); |
bbc13ae3 | 9748 | tok = tmptok; |
4a306c9a | 9749 | } |
e7e0cddf SS |
9750 | else if (rest) |
9751 | { | |
9752 | *rest = savestring (tok, strlen (tok)); | |
ccab2054 | 9753 | return; |
e7e0cddf | 9754 | } |
018d34a4 VP |
9755 | else |
9756 | error (_("Junk at end of arguments.")); | |
9757 | } | |
9758 | } | |
9759 | ||
0fb4aa4b PA |
9760 | /* Decode a static tracepoint marker spec. */ |
9761 | ||
9762 | static struct symtabs_and_lines | |
9763 | decode_static_tracepoint_spec (char **arg_p) | |
9764 | { | |
9765 | VEC(static_tracepoint_marker_p) *markers = NULL; | |
9766 | struct symtabs_and_lines sals; | |
0fb4aa4b PA |
9767 | struct cleanup *old_chain; |
9768 | char *p = &(*arg_p)[3]; | |
9769 | char *endp; | |
9770 | char *marker_str; | |
9771 | int i; | |
9772 | ||
e9cafbcc | 9773 | p = skip_spaces (p); |
0fb4aa4b | 9774 | |
e9cafbcc | 9775 | endp = skip_to_space (p); |
0fb4aa4b PA |
9776 | |
9777 | marker_str = savestring (p, endp - p); | |
9778 | old_chain = make_cleanup (xfree, marker_str); | |
9779 | ||
9780 | markers = target_static_tracepoint_markers_by_strid (marker_str); | |
9781 | if (VEC_empty(static_tracepoint_marker_p, markers)) | |
9782 | error (_("No known static tracepoint marker named %s"), marker_str); | |
9783 | ||
9784 | sals.nelts = VEC_length(static_tracepoint_marker_p, markers); | |
9785 | sals.sals = xmalloc (sizeof *sals.sals * sals.nelts); | |
9786 | ||
9787 | for (i = 0; i < sals.nelts; i++) | |
9788 | { | |
9789 | struct static_tracepoint_marker *marker; | |
9790 | ||
9791 | marker = VEC_index (static_tracepoint_marker_p, markers, i); | |
9792 | ||
9793 | init_sal (&sals.sals[i]); | |
9794 | ||
9795 | sals.sals[i] = find_pc_line (marker->address, 0); | |
9796 | sals.sals[i].pc = marker->address; | |
9797 | ||
9798 | release_static_tracepoint_marker (marker); | |
9799 | } | |
9800 | ||
9801 | do_cleanups (old_chain); | |
9802 | ||
9803 | *arg_p = endp; | |
9804 | return sals; | |
9805 | } | |
9806 | ||
fd9b8c24 PA |
9807 | /* Set a breakpoint. This function is shared between CLI and MI |
9808 | functions for setting a breakpoint. This function has two major | |
f6de8ec2 PA |
9809 | modes of operations, selected by the PARSE_ARG parameter. If |
9810 | non-zero, the function will parse ARG, extracting location, | |
9811 | condition, thread and extra string. Otherwise, ARG is just the | |
9812 | breakpoint's location, with condition, thread, and extra string | |
9813 | specified by the COND_STRING, THREAD and EXTRA_STRING parameters. | |
9814 | If INTERNAL is non-zero, the breakpoint number will be allocated | |
9815 | from the internal breakpoint count. Returns true if any breakpoint | |
9816 | was created; false otherwise. */ | |
0101ce28 | 9817 | |
8cdf0e15 VP |
9818 | int |
9819 | create_breakpoint (struct gdbarch *gdbarch, | |
e7e0cddf SS |
9820 | char *arg, char *cond_string, |
9821 | int thread, char *extra_string, | |
f6de8ec2 | 9822 | int parse_arg, |
0fb4aa4b | 9823 | int tempflag, enum bptype type_wanted, |
8cdf0e15 VP |
9824 | int ignore_count, |
9825 | enum auto_boolean pending_break_support, | |
c0a91b2b | 9826 | const struct breakpoint_ops *ops, |
44f238bb PA |
9827 | int from_tty, int enabled, int internal, |
9828 | unsigned flags) | |
c3f6f71d | 9829 | { |
b78a6381 | 9830 | volatile struct gdb_exception e; |
f8eba3c6 | 9831 | char *copy_arg = NULL; |
c3f6f71d | 9832 | char *addr_start = arg; |
7efd8fc2 | 9833 | struct linespec_result canonical; |
c3f6f71d | 9834 | struct cleanup *old_chain; |
80c99de1 | 9835 | struct cleanup *bkpt_chain = NULL; |
0101ce28 | 9836 | int pending = 0; |
4a306c9a | 9837 | int task = 0; |
86b17b60 | 9838 | int prev_bkpt_count = breakpoint_count; |
c3f6f71d | 9839 | |
348d480f PA |
9840 | gdb_assert (ops != NULL); |
9841 | ||
7efd8fc2 | 9842 | init_linespec_result (&canonical); |
c3f6f71d | 9843 | |
b78a6381 TT |
9844 | TRY_CATCH (e, RETURN_MASK_ALL) |
9845 | { | |
983af33b SDJ |
9846 | ops->create_sals_from_address (&arg, &canonical, type_wanted, |
9847 | addr_start, ©_arg); | |
b78a6381 | 9848 | } |
0101ce28 JJ |
9849 | |
9850 | /* If caller is interested in rc value from parse, set value. */ | |
05ff989b | 9851 | switch (e.reason) |
0101ce28 | 9852 | { |
983af33b SDJ |
9853 | case GDB_NO_ERROR: |
9854 | if (VEC_empty (linespec_sals, canonical.sals)) | |
9855 | return 0; | |
9856 | break; | |
05ff989b AC |
9857 | case RETURN_ERROR: |
9858 | switch (e.error) | |
0101ce28 | 9859 | { |
05ff989b | 9860 | case NOT_FOUND_ERROR: |
0101ce28 | 9861 | |
05ff989b AC |
9862 | /* If pending breakpoint support is turned off, throw |
9863 | error. */ | |
fa8d40ab JJ |
9864 | |
9865 | if (pending_break_support == AUTO_BOOLEAN_FALSE) | |
723a2275 VP |
9866 | throw_exception (e); |
9867 | ||
9868 | exception_print (gdb_stderr, e); | |
fa8d40ab | 9869 | |
05ff989b AC |
9870 | /* If pending breakpoint support is auto query and the user |
9871 | selects no, then simply return the error code. */ | |
059fb39f | 9872 | if (pending_break_support == AUTO_BOOLEAN_AUTO |
bfccc43c YQ |
9873 | && !nquery (_("Make %s pending on future shared library load? "), |
9874 | bptype_string (type_wanted))) | |
fd9b8c24 | 9875 | return 0; |
fa8d40ab | 9876 | |
05ff989b AC |
9877 | /* At this point, either the user was queried about setting |
9878 | a pending breakpoint and selected yes, or pending | |
9879 | breakpoint behavior is on and thus a pending breakpoint | |
9880 | is defaulted on behalf of the user. */ | |
f8eba3c6 TT |
9881 | { |
9882 | struct linespec_sals lsal; | |
9883 | ||
9884 | copy_arg = xstrdup (addr_start); | |
9885 | lsal.canonical = xstrdup (copy_arg); | |
9886 | lsal.sals.nelts = 1; | |
9887 | lsal.sals.sals = XNEW (struct symtab_and_line); | |
9888 | init_sal (&lsal.sals.sals[0]); | |
9889 | pending = 1; | |
9890 | VEC_safe_push (linespec_sals, canonical.sals, &lsal); | |
9891 | } | |
05ff989b AC |
9892 | break; |
9893 | default: | |
98deb0da | 9894 | throw_exception (e); |
0101ce28 | 9895 | } |
2abae994 | 9896 | break; |
05ff989b | 9897 | default: |
983af33b | 9898 | throw_exception (e); |
0101ce28 | 9899 | } |
c3f6f71d | 9900 | |
4a64f543 | 9901 | /* Create a chain of things that always need to be cleaned up. */ |
f8eba3c6 | 9902 | old_chain = make_cleanup_destroy_linespec_result (&canonical); |
c3f6f71d | 9903 | |
c3f6f71d JM |
9904 | /* ----------------------------- SNIP ----------------------------- |
9905 | Anything added to the cleanup chain beyond this point is assumed | |
9906 | to be part of a breakpoint. If the breakpoint create succeeds | |
80c99de1 PA |
9907 | then the memory is not reclaimed. */ |
9908 | bkpt_chain = make_cleanup (null_cleanup, 0); | |
c3f6f71d | 9909 | |
c3f6f71d JM |
9910 | /* Resolve all line numbers to PC's and verify that the addresses |
9911 | are ok for the target. */ | |
0101ce28 | 9912 | if (!pending) |
f8eba3c6 TT |
9913 | { |
9914 | int ix; | |
9915 | struct linespec_sals *iter; | |
9916 | ||
9917 | for (ix = 0; VEC_iterate (linespec_sals, canonical.sals, ix, iter); ++ix) | |
9918 | breakpoint_sals_to_pc (&iter->sals); | |
9919 | } | |
c3f6f71d | 9920 | |
7a697b8d | 9921 | /* Fast tracepoints may have additional restrictions on location. */ |
bfccc43c | 9922 | if (!pending && type_wanted == bp_fast_tracepoint) |
f8eba3c6 TT |
9923 | { |
9924 | int ix; | |
9925 | struct linespec_sals *iter; | |
9926 | ||
9927 | for (ix = 0; VEC_iterate (linespec_sals, canonical.sals, ix, iter); ++ix) | |
9928 | check_fast_tracepoint_sals (gdbarch, &iter->sals); | |
9929 | } | |
7a697b8d | 9930 | |
c3f6f71d JM |
9931 | /* Verify that condition can be parsed, before setting any |
9932 | breakpoints. Allocate a separate condition expression for each | |
4a64f543 | 9933 | breakpoint. */ |
0101ce28 | 9934 | if (!pending) |
c3f6f71d | 9935 | { |
f6de8ec2 | 9936 | if (parse_arg) |
72b2ff0e | 9937 | { |
0878d0fa | 9938 | char *rest; |
52d361e1 YQ |
9939 | struct linespec_sals *lsal; |
9940 | ||
9941 | lsal = VEC_index (linespec_sals, canonical.sals, 0); | |
9942 | ||
0878d0fa YQ |
9943 | /* Here we only parse 'arg' to separate condition |
9944 | from thread number, so parsing in context of first | |
9945 | sal is OK. When setting the breakpoint we'll | |
9946 | re-parse it in context of each sal. */ | |
9947 | ||
9948 | find_condition_and_thread (arg, lsal->sals.sals[0].pc, &cond_string, | |
9949 | &thread, &task, &rest); | |
9950 | if (cond_string) | |
9951 | make_cleanup (xfree, cond_string); | |
9952 | if (rest) | |
9953 | make_cleanup (xfree, rest); | |
9954 | if (rest) | |
9955 | extra_string = rest; | |
72b2ff0e | 9956 | } |
2f069f6f | 9957 | else |
72b2ff0e | 9958 | { |
0878d0fa YQ |
9959 | if (*arg != '\0') |
9960 | error (_("Garbage '%s' at end of location"), arg); | |
9961 | ||
9962 | /* Create a private copy of condition string. */ | |
9963 | if (cond_string) | |
9964 | { | |
9965 | cond_string = xstrdup (cond_string); | |
9966 | make_cleanup (xfree, cond_string); | |
9967 | } | |
9968 | /* Create a private copy of any extra string. */ | |
9969 | if (extra_string) | |
9970 | { | |
9971 | extra_string = xstrdup (extra_string); | |
9972 | make_cleanup (xfree, extra_string); | |
9973 | } | |
72b2ff0e | 9974 | } |
0fb4aa4b | 9975 | |
52d361e1 | 9976 | ops->create_breakpoints_sal (gdbarch, &canonical, |
e7e0cddf | 9977 | cond_string, extra_string, type_wanted, |
d9b3f62e PA |
9978 | tempflag ? disp_del : disp_donttouch, |
9979 | thread, task, ignore_count, ops, | |
44f238bb | 9980 | from_tty, enabled, internal, flags); |
c906108c | 9981 | } |
0101ce28 JJ |
9982 | else |
9983 | { | |
0101ce28 JJ |
9984 | struct breakpoint *b; |
9985 | ||
0101ce28 JJ |
9986 | make_cleanup (xfree, copy_arg); |
9987 | ||
bfccc43c YQ |
9988 | if (is_tracepoint_type (type_wanted)) |
9989 | { | |
9990 | struct tracepoint *t; | |
9991 | ||
9992 | t = XCNEW (struct tracepoint); | |
9993 | b = &t->base; | |
9994 | } | |
9995 | else | |
9996 | b = XNEW (struct breakpoint); | |
9997 | ||
9998 | init_raw_breakpoint_without_location (b, gdbarch, type_wanted, ops); | |
9999 | ||
f8eba3c6 | 10000 | b->addr_string = copy_arg; |
f6de8ec2 | 10001 | if (parse_arg) |
e12c7713 MK |
10002 | b->cond_string = NULL; |
10003 | else | |
10004 | { | |
10005 | /* Create a private copy of condition string. */ | |
10006 | if (cond_string) | |
10007 | { | |
10008 | cond_string = xstrdup (cond_string); | |
10009 | make_cleanup (xfree, cond_string); | |
10010 | } | |
10011 | b->cond_string = cond_string; | |
10012 | } | |
e7e0cddf | 10013 | b->extra_string = NULL; |
0101ce28 | 10014 | b->ignore_count = ignore_count; |
0101ce28 | 10015 | b->disposition = tempflag ? disp_del : disp_donttouch; |
0d381245 | 10016 | b->condition_not_parsed = 1; |
41447f92 | 10017 | b->enable_state = enabled ? bp_enabled : bp_disabled; |
cc72b2a2 KP |
10018 | if ((type_wanted != bp_breakpoint |
10019 | && type_wanted != bp_hardware_breakpoint) || thread != -1) | |
f8eba3c6 | 10020 | b->pspace = current_program_space; |
8bea4e01 | 10021 | |
bfccc43c | 10022 | install_breakpoint (internal, b, 0); |
0101ce28 JJ |
10023 | } |
10024 | ||
f8eba3c6 | 10025 | if (VEC_length (linespec_sals, canonical.sals) > 1) |
95a42b64 | 10026 | { |
3e43a32a MS |
10027 | warning (_("Multiple breakpoints were set.\nUse the " |
10028 | "\"delete\" command to delete unwanted breakpoints.")); | |
86b17b60 | 10029 | prev_breakpoint_count = prev_bkpt_count; |
95a42b64 TT |
10030 | } |
10031 | ||
80c99de1 PA |
10032 | /* That's it. Discard the cleanups for data inserted into the |
10033 | breakpoint. */ | |
10034 | discard_cleanups (bkpt_chain); | |
10035 | /* But cleanup everything else. */ | |
c3f6f71d | 10036 | do_cleanups (old_chain); |
217dc9e2 | 10037 | |
80c99de1 | 10038 | /* error call may happen here - have BKPT_CHAIN already discarded. */ |
217dc9e2 | 10039 | update_global_location_list (1); |
fd9b8c24 PA |
10040 | |
10041 | return 1; | |
c3f6f71d | 10042 | } |
c906108c | 10043 | |
348d480f | 10044 | /* Set a breakpoint. |
72b2ff0e VP |
10045 | ARG is a string describing breakpoint address, |
10046 | condition, and thread. | |
10047 | FLAG specifies if a breakpoint is hardware on, | |
10048 | and if breakpoint is temporary, using BP_HARDWARE_FLAG | |
10049 | and BP_TEMPFLAG. */ | |
348d480f | 10050 | |
98deb0da | 10051 | static void |
72b2ff0e | 10052 | break_command_1 (char *arg, int flag, int from_tty) |
c3f6f71d | 10053 | { |
72b2ff0e | 10054 | int tempflag = flag & BP_TEMPFLAG; |
0fb4aa4b PA |
10055 | enum bptype type_wanted = (flag & BP_HARDWAREFLAG |
10056 | ? bp_hardware_breakpoint | |
10057 | : bp_breakpoint); | |
55aa24fb SDJ |
10058 | struct breakpoint_ops *ops; |
10059 | const char *arg_cp = arg; | |
10060 | ||
10061 | /* Matching breakpoints on probes. */ | |
10062 | if (arg && probe_linespec_to_ops (&arg_cp) != NULL) | |
10063 | ops = &bkpt_probe_breakpoint_ops; | |
10064 | else | |
10065 | ops = &bkpt_breakpoint_ops; | |
c3f6f71d | 10066 | |
8cdf0e15 VP |
10067 | create_breakpoint (get_current_arch (), |
10068 | arg, | |
e7e0cddf | 10069 | NULL, 0, NULL, 1 /* parse arg */, |
0fb4aa4b | 10070 | tempflag, type_wanted, |
8cdf0e15 VP |
10071 | 0 /* Ignore count */, |
10072 | pending_break_support, | |
55aa24fb | 10073 | ops, |
8cdf0e15 | 10074 | from_tty, |
84f4c1fe | 10075 | 1 /* enabled */, |
44f238bb PA |
10076 | 0 /* internal */, |
10077 | 0); | |
c906108c SS |
10078 | } |
10079 | ||
c906108c SS |
10080 | /* Helper function for break_command_1 and disassemble_command. */ |
10081 | ||
10082 | void | |
fba45db2 | 10083 | resolve_sal_pc (struct symtab_and_line *sal) |
c906108c SS |
10084 | { |
10085 | CORE_ADDR pc; | |
10086 | ||
10087 | if (sal->pc == 0 && sal->symtab != NULL) | |
10088 | { | |
10089 | if (!find_line_pc (sal->symtab, sal->line, &pc)) | |
8a3fe4f8 | 10090 | error (_("No line %d in file \"%s\"."), |
05cba821 | 10091 | sal->line, symtab_to_filename_for_display (sal->symtab)); |
c906108c | 10092 | sal->pc = pc; |
6a048695 | 10093 | |
4a64f543 MS |
10094 | /* If this SAL corresponds to a breakpoint inserted using a line |
10095 | number, then skip the function prologue if necessary. */ | |
6a048695 | 10096 | if (sal->explicit_line) |
059acae7 | 10097 | skip_prologue_sal (sal); |
c906108c SS |
10098 | } |
10099 | ||
10100 | if (sal->section == 0 && sal->symtab != NULL) | |
10101 | { | |
10102 | struct blockvector *bv; | |
c5aa993b JM |
10103 | struct block *b; |
10104 | struct symbol *sym; | |
c906108c | 10105 | |
801e3a5b | 10106 | bv = blockvector_for_pc_sect (sal->pc, 0, &b, sal->symtab); |
c906108c SS |
10107 | if (bv != NULL) |
10108 | { | |
7f0df278 | 10109 | sym = block_linkage_function (b); |
c906108c SS |
10110 | if (sym != NULL) |
10111 | { | |
10112 | fixup_symbol_section (sym, sal->symtab->objfile); | |
e27d198c | 10113 | sal->section = SYMBOL_OBJ_SECTION (sal->symtab->objfile, sym); |
c906108c SS |
10114 | } |
10115 | else | |
10116 | { | |
4a64f543 MS |
10117 | /* It really is worthwhile to have the section, so we'll |
10118 | just have to look harder. This case can be executed | |
10119 | if we have line numbers but no functions (as can | |
10120 | happen in assembly source). */ | |
c906108c | 10121 | |
7cbd4a93 | 10122 | struct bound_minimal_symbol msym; |
6c95b8df PA |
10123 | struct cleanup *old_chain = save_current_space_and_thread (); |
10124 | ||
10125 | switch_to_program_space_and_thread (sal->pspace); | |
c906108c SS |
10126 | |
10127 | msym = lookup_minimal_symbol_by_pc (sal->pc); | |
7cbd4a93 | 10128 | if (msym.minsym) |
efd66ac6 | 10129 | sal->section = MSYMBOL_OBJ_SECTION (msym.objfile, msym.minsym); |
6c95b8df PA |
10130 | |
10131 | do_cleanups (old_chain); | |
c906108c SS |
10132 | } |
10133 | } | |
10134 | } | |
10135 | } | |
10136 | ||
10137 | void | |
fba45db2 | 10138 | break_command (char *arg, int from_tty) |
c906108c | 10139 | { |
db107f19 | 10140 | break_command_1 (arg, 0, from_tty); |
c906108c SS |
10141 | } |
10142 | ||
c906108c | 10143 | void |
fba45db2 | 10144 | tbreak_command (char *arg, int from_tty) |
c906108c | 10145 | { |
db107f19 | 10146 | break_command_1 (arg, BP_TEMPFLAG, from_tty); |
c906108c SS |
10147 | } |
10148 | ||
c906108c | 10149 | static void |
fba45db2 | 10150 | hbreak_command (char *arg, int from_tty) |
c906108c | 10151 | { |
db107f19 | 10152 | break_command_1 (arg, BP_HARDWAREFLAG, from_tty); |
c906108c SS |
10153 | } |
10154 | ||
10155 | static void | |
fba45db2 | 10156 | thbreak_command (char *arg, int from_tty) |
c906108c | 10157 | { |
db107f19 | 10158 | break_command_1 (arg, (BP_TEMPFLAG | BP_HARDWAREFLAG), from_tty); |
c906108c SS |
10159 | } |
10160 | ||
10161 | static void | |
fba45db2 | 10162 | stop_command (char *arg, int from_tty) |
c906108c | 10163 | { |
a3f17187 | 10164 | printf_filtered (_("Specify the type of breakpoint to set.\n\ |
c906108c | 10165 | Usage: stop in <function | address>\n\ |
a3f17187 | 10166 | stop at <line>\n")); |
c906108c SS |
10167 | } |
10168 | ||
10169 | static void | |
fba45db2 | 10170 | stopin_command (char *arg, int from_tty) |
c906108c SS |
10171 | { |
10172 | int badInput = 0; | |
10173 | ||
c5aa993b | 10174 | if (arg == (char *) NULL) |
c906108c SS |
10175 | badInput = 1; |
10176 | else if (*arg != '*') | |
10177 | { | |
10178 | char *argptr = arg; | |
10179 | int hasColon = 0; | |
10180 | ||
4a64f543 | 10181 | /* Look for a ':'. If this is a line number specification, then |
53a5351d | 10182 | say it is bad, otherwise, it should be an address or |
4a64f543 | 10183 | function/method name. */ |
c906108c | 10184 | while (*argptr && !hasColon) |
c5aa993b JM |
10185 | { |
10186 | hasColon = (*argptr == ':'); | |
10187 | argptr++; | |
10188 | } | |
c906108c SS |
10189 | |
10190 | if (hasColon) | |
c5aa993b | 10191 | badInput = (*argptr != ':'); /* Not a class::method */ |
c906108c | 10192 | else |
c5aa993b | 10193 | badInput = isdigit (*arg); /* a simple line number */ |
c906108c SS |
10194 | } |
10195 | ||
10196 | if (badInput) | |
a3f17187 | 10197 | printf_filtered (_("Usage: stop in <function | address>\n")); |
c906108c | 10198 | else |
db107f19 | 10199 | break_command_1 (arg, 0, from_tty); |
c906108c SS |
10200 | } |
10201 | ||
10202 | static void | |
fba45db2 | 10203 | stopat_command (char *arg, int from_tty) |
c906108c SS |
10204 | { |
10205 | int badInput = 0; | |
10206 | ||
c5aa993b | 10207 | if (arg == (char *) NULL || *arg == '*') /* no line number */ |
c906108c SS |
10208 | badInput = 1; |
10209 | else | |
10210 | { | |
10211 | char *argptr = arg; | |
10212 | int hasColon = 0; | |
10213 | ||
4a64f543 MS |
10214 | /* Look for a ':'. If there is a '::' then get out, otherwise |
10215 | it is probably a line number. */ | |
c906108c | 10216 | while (*argptr && !hasColon) |
c5aa993b JM |
10217 | { |
10218 | hasColon = (*argptr == ':'); | |
10219 | argptr++; | |
10220 | } | |
c906108c SS |
10221 | |
10222 | if (hasColon) | |
c5aa993b | 10223 | badInput = (*argptr == ':'); /* we have class::method */ |
c906108c | 10224 | else |
c5aa993b | 10225 | badInput = !isdigit (*arg); /* not a line number */ |
c906108c SS |
10226 | } |
10227 | ||
10228 | if (badInput) | |
a3f17187 | 10229 | printf_filtered (_("Usage: stop at <line>\n")); |
c906108c | 10230 | else |
db107f19 | 10231 | break_command_1 (arg, 0, from_tty); |
c906108c SS |
10232 | } |
10233 | ||
e7e0cddf SS |
10234 | /* The dynamic printf command is mostly like a regular breakpoint, but |
10235 | with a prewired command list consisting of a single output command, | |
10236 | built from extra arguments supplied on the dprintf command | |
10237 | line. */ | |
10238 | ||
da821c7b | 10239 | static void |
e7e0cddf SS |
10240 | dprintf_command (char *arg, int from_tty) |
10241 | { | |
10242 | create_breakpoint (get_current_arch (), | |
10243 | arg, | |
10244 | NULL, 0, NULL, 1 /* parse arg */, | |
10245 | 0, bp_dprintf, | |
10246 | 0 /* Ignore count */, | |
10247 | pending_break_support, | |
10248 | &dprintf_breakpoint_ops, | |
10249 | from_tty, | |
10250 | 1 /* enabled */, | |
10251 | 0 /* internal */, | |
10252 | 0); | |
10253 | } | |
10254 | ||
d3ce09f5 SS |
10255 | static void |
10256 | agent_printf_command (char *arg, int from_tty) | |
10257 | { | |
10258 | error (_("May only run agent-printf on the target")); | |
10259 | } | |
10260 | ||
f1310107 TJB |
10261 | /* Implement the "breakpoint_hit" breakpoint_ops method for |
10262 | ranged breakpoints. */ | |
10263 | ||
10264 | static int | |
10265 | breakpoint_hit_ranged_breakpoint (const struct bp_location *bl, | |
10266 | struct address_space *aspace, | |
09ac7c10 TT |
10267 | CORE_ADDR bp_addr, |
10268 | const struct target_waitstatus *ws) | |
f1310107 | 10269 | { |
09ac7c10 | 10270 | if (ws->kind != TARGET_WAITKIND_STOPPED |
a493e3e2 | 10271 | || ws->value.sig != GDB_SIGNAL_TRAP) |
09ac7c10 TT |
10272 | return 0; |
10273 | ||
f1310107 TJB |
10274 | return breakpoint_address_match_range (bl->pspace->aspace, bl->address, |
10275 | bl->length, aspace, bp_addr); | |
10276 | } | |
10277 | ||
10278 | /* Implement the "resources_needed" breakpoint_ops method for | |
10279 | ranged breakpoints. */ | |
10280 | ||
10281 | static int | |
10282 | resources_needed_ranged_breakpoint (const struct bp_location *bl) | |
10283 | { | |
10284 | return target_ranged_break_num_registers (); | |
10285 | } | |
10286 | ||
10287 | /* Implement the "print_it" breakpoint_ops method for | |
10288 | ranged breakpoints. */ | |
10289 | ||
10290 | static enum print_stop_action | |
348d480f | 10291 | print_it_ranged_breakpoint (bpstat bs) |
f1310107 | 10292 | { |
348d480f | 10293 | struct breakpoint *b = bs->breakpoint_at; |
f1310107 | 10294 | struct bp_location *bl = b->loc; |
79a45e25 | 10295 | struct ui_out *uiout = current_uiout; |
f1310107 TJB |
10296 | |
10297 | gdb_assert (b->type == bp_hardware_breakpoint); | |
10298 | ||
10299 | /* Ranged breakpoints have only one location. */ | |
10300 | gdb_assert (bl && bl->next == NULL); | |
10301 | ||
10302 | annotate_breakpoint (b->number); | |
10303 | if (b->disposition == disp_del) | |
10304 | ui_out_text (uiout, "\nTemporary ranged breakpoint "); | |
10305 | else | |
10306 | ui_out_text (uiout, "\nRanged breakpoint "); | |
10307 | if (ui_out_is_mi_like_p (uiout)) | |
10308 | { | |
10309 | ui_out_field_string (uiout, "reason", | |
10310 | async_reason_lookup (EXEC_ASYNC_BREAKPOINT_HIT)); | |
10311 | ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition)); | |
10312 | } | |
10313 | ui_out_field_int (uiout, "bkptno", b->number); | |
10314 | ui_out_text (uiout, ", "); | |
10315 | ||
10316 | return PRINT_SRC_AND_LOC; | |
10317 | } | |
10318 | ||
10319 | /* Implement the "print_one" breakpoint_ops method for | |
10320 | ranged breakpoints. */ | |
10321 | ||
10322 | static void | |
10323 | print_one_ranged_breakpoint (struct breakpoint *b, | |
10324 | struct bp_location **last_loc) | |
10325 | { | |
10326 | struct bp_location *bl = b->loc; | |
10327 | struct value_print_options opts; | |
79a45e25 | 10328 | struct ui_out *uiout = current_uiout; |
f1310107 TJB |
10329 | |
10330 | /* Ranged breakpoints have only one location. */ | |
10331 | gdb_assert (bl && bl->next == NULL); | |
10332 | ||
10333 | get_user_print_options (&opts); | |
10334 | ||
10335 | if (opts.addressprint) | |
10336 | /* We don't print the address range here, it will be printed later | |
10337 | by print_one_detail_ranged_breakpoint. */ | |
10338 | ui_out_field_skip (uiout, "addr"); | |
10339 | annotate_field (5); | |
10340 | print_breakpoint_location (b, bl); | |
10341 | *last_loc = bl; | |
10342 | } | |
10343 | ||
10344 | /* Implement the "print_one_detail" breakpoint_ops method for | |
10345 | ranged breakpoints. */ | |
10346 | ||
10347 | static void | |
10348 | print_one_detail_ranged_breakpoint (const struct breakpoint *b, | |
10349 | struct ui_out *uiout) | |
10350 | { | |
10351 | CORE_ADDR address_start, address_end; | |
10352 | struct bp_location *bl = b->loc; | |
f99d8bf4 PA |
10353 | struct ui_file *stb = mem_fileopen (); |
10354 | struct cleanup *cleanup = make_cleanup_ui_file_delete (stb); | |
f1310107 TJB |
10355 | |
10356 | gdb_assert (bl); | |
10357 | ||
10358 | address_start = bl->address; | |
10359 | address_end = address_start + bl->length - 1; | |
10360 | ||
10361 | ui_out_text (uiout, "\taddress range: "); | |
f99d8bf4 | 10362 | fprintf_unfiltered (stb, "[%s, %s]", |
f1310107 TJB |
10363 | print_core_address (bl->gdbarch, address_start), |
10364 | print_core_address (bl->gdbarch, address_end)); | |
10365 | ui_out_field_stream (uiout, "addr", stb); | |
10366 | ui_out_text (uiout, "\n"); | |
10367 | ||
10368 | do_cleanups (cleanup); | |
10369 | } | |
10370 | ||
10371 | /* Implement the "print_mention" breakpoint_ops method for | |
10372 | ranged breakpoints. */ | |
10373 | ||
10374 | static void | |
10375 | print_mention_ranged_breakpoint (struct breakpoint *b) | |
10376 | { | |
10377 | struct bp_location *bl = b->loc; | |
79a45e25 | 10378 | struct ui_out *uiout = current_uiout; |
f1310107 TJB |
10379 | |
10380 | gdb_assert (bl); | |
10381 | gdb_assert (b->type == bp_hardware_breakpoint); | |
10382 | ||
10383 | if (ui_out_is_mi_like_p (uiout)) | |
10384 | return; | |
10385 | ||
10386 | printf_filtered (_("Hardware assisted ranged breakpoint %d from %s to %s."), | |
10387 | b->number, paddress (bl->gdbarch, bl->address), | |
10388 | paddress (bl->gdbarch, bl->address + bl->length - 1)); | |
10389 | } | |
10390 | ||
10391 | /* Implement the "print_recreate" breakpoint_ops method for | |
10392 | ranged breakpoints. */ | |
10393 | ||
10394 | static void | |
10395 | print_recreate_ranged_breakpoint (struct breakpoint *b, struct ui_file *fp) | |
10396 | { | |
10397 | fprintf_unfiltered (fp, "break-range %s, %s", b->addr_string, | |
10398 | b->addr_string_range_end); | |
d9b3f62e | 10399 | print_recreate_thread (b, fp); |
f1310107 TJB |
10400 | } |
10401 | ||
10402 | /* The breakpoint_ops structure to be used in ranged breakpoints. */ | |
10403 | ||
2060206e | 10404 | static struct breakpoint_ops ranged_breakpoint_ops; |
f1310107 TJB |
10405 | |
10406 | /* Find the address where the end of the breakpoint range should be | |
10407 | placed, given the SAL of the end of the range. This is so that if | |
10408 | the user provides a line number, the end of the range is set to the | |
10409 | last instruction of the given line. */ | |
10410 | ||
10411 | static CORE_ADDR | |
10412 | find_breakpoint_range_end (struct symtab_and_line sal) | |
10413 | { | |
10414 | CORE_ADDR end; | |
10415 | ||
10416 | /* If the user provided a PC value, use it. Otherwise, | |
10417 | find the address of the end of the given location. */ | |
10418 | if (sal.explicit_pc) | |
10419 | end = sal.pc; | |
10420 | else | |
10421 | { | |
10422 | int ret; | |
10423 | CORE_ADDR start; | |
10424 | ||
10425 | ret = find_line_pc_range (sal, &start, &end); | |
10426 | if (!ret) | |
10427 | error (_("Could not find location of the end of the range.")); | |
10428 | ||
10429 | /* find_line_pc_range returns the start of the next line. */ | |
10430 | end--; | |
10431 | } | |
10432 | ||
10433 | return end; | |
10434 | } | |
10435 | ||
10436 | /* Implement the "break-range" CLI command. */ | |
10437 | ||
10438 | static void | |
10439 | break_range_command (char *arg, int from_tty) | |
10440 | { | |
10441 | char *arg_start, *addr_string_start, *addr_string_end; | |
10442 | struct linespec_result canonical_start, canonical_end; | |
10443 | int bp_count, can_use_bp, length; | |
10444 | CORE_ADDR end; | |
10445 | struct breakpoint *b; | |
10446 | struct symtab_and_line sal_start, sal_end; | |
f1310107 | 10447 | struct cleanup *cleanup_bkpt; |
f8eba3c6 | 10448 | struct linespec_sals *lsal_start, *lsal_end; |
f1310107 TJB |
10449 | |
10450 | /* We don't support software ranged breakpoints. */ | |
10451 | if (target_ranged_break_num_registers () < 0) | |
10452 | error (_("This target does not support hardware ranged breakpoints.")); | |
10453 | ||
10454 | bp_count = hw_breakpoint_used_count (); | |
10455 | bp_count += target_ranged_break_num_registers (); | |
10456 | can_use_bp = target_can_use_hardware_watchpoint (bp_hardware_breakpoint, | |
10457 | bp_count, 0); | |
10458 | if (can_use_bp < 0) | |
10459 | error (_("Hardware breakpoints used exceeds limit.")); | |
10460 | ||
f8eba3c6 | 10461 | arg = skip_spaces (arg); |
f1310107 TJB |
10462 | if (arg == NULL || arg[0] == '\0') |
10463 | error(_("No address range specified.")); | |
10464 | ||
f1310107 TJB |
10465 | init_linespec_result (&canonical_start); |
10466 | ||
f8eba3c6 TT |
10467 | arg_start = arg; |
10468 | parse_breakpoint_sals (&arg, &canonical_start); | |
f1310107 | 10469 | |
f8eba3c6 | 10470 | cleanup_bkpt = make_cleanup_destroy_linespec_result (&canonical_start); |
f1310107 TJB |
10471 | |
10472 | if (arg[0] != ',') | |
10473 | error (_("Too few arguments.")); | |
f8eba3c6 | 10474 | else if (VEC_empty (linespec_sals, canonical_start.sals)) |
f1310107 | 10475 | error (_("Could not find location of the beginning of the range.")); |
f8eba3c6 TT |
10476 | |
10477 | lsal_start = VEC_index (linespec_sals, canonical_start.sals, 0); | |
10478 | ||
10479 | if (VEC_length (linespec_sals, canonical_start.sals) > 1 | |
10480 | || lsal_start->sals.nelts != 1) | |
f1310107 TJB |
10481 | error (_("Cannot create a ranged breakpoint with multiple locations.")); |
10482 | ||
f8eba3c6 TT |
10483 | sal_start = lsal_start->sals.sals[0]; |
10484 | addr_string_start = savestring (arg_start, arg - arg_start); | |
10485 | make_cleanup (xfree, addr_string_start); | |
f1310107 TJB |
10486 | |
10487 | arg++; /* Skip the comma. */ | |
f8eba3c6 | 10488 | arg = skip_spaces (arg); |
f1310107 TJB |
10489 | |
10490 | /* Parse the end location. */ | |
10491 | ||
f1310107 TJB |
10492 | init_linespec_result (&canonical_end); |
10493 | arg_start = arg; | |
10494 | ||
f8eba3c6 | 10495 | /* We call decode_line_full directly here instead of using |
f1310107 TJB |
10496 | parse_breakpoint_sals because we need to specify the start location's |
10497 | symtab and line as the default symtab and line for the end of the | |
10498 | range. This makes it possible to have ranges like "foo.c:27, +14", | |
10499 | where +14 means 14 lines from the start location. */ | |
f8eba3c6 TT |
10500 | decode_line_full (&arg, DECODE_LINE_FUNFIRSTLINE, |
10501 | sal_start.symtab, sal_start.line, | |
10502 | &canonical_end, NULL, NULL); | |
10503 | ||
10504 | make_cleanup_destroy_linespec_result (&canonical_end); | |
f1310107 | 10505 | |
f8eba3c6 | 10506 | if (VEC_empty (linespec_sals, canonical_end.sals)) |
f1310107 | 10507 | error (_("Could not find location of the end of the range.")); |
f8eba3c6 TT |
10508 | |
10509 | lsal_end = VEC_index (linespec_sals, canonical_end.sals, 0); | |
10510 | if (VEC_length (linespec_sals, canonical_end.sals) > 1 | |
10511 | || lsal_end->sals.nelts != 1) | |
f1310107 TJB |
10512 | error (_("Cannot create a ranged breakpoint with multiple locations.")); |
10513 | ||
f8eba3c6 TT |
10514 | sal_end = lsal_end->sals.sals[0]; |
10515 | addr_string_end = savestring (arg_start, arg - arg_start); | |
10516 | make_cleanup (xfree, addr_string_end); | |
f1310107 TJB |
10517 | |
10518 | end = find_breakpoint_range_end (sal_end); | |
10519 | if (sal_start.pc > end) | |
177b42fe | 10520 | error (_("Invalid address range, end precedes start.")); |
f1310107 TJB |
10521 | |
10522 | length = end - sal_start.pc + 1; | |
10523 | if (length < 0) | |
10524 | /* Length overflowed. */ | |
10525 | error (_("Address range too large.")); | |
10526 | else if (length == 1) | |
10527 | { | |
10528 | /* This range is simple enough to be handled by | |
10529 | the `hbreak' command. */ | |
10530 | hbreak_command (addr_string_start, 1); | |
10531 | ||
10532 | do_cleanups (cleanup_bkpt); | |
10533 | ||
10534 | return; | |
10535 | } | |
10536 | ||
10537 | /* Now set up the breakpoint. */ | |
10538 | b = set_raw_breakpoint (get_current_arch (), sal_start, | |
348d480f | 10539 | bp_hardware_breakpoint, &ranged_breakpoint_ops); |
f1310107 TJB |
10540 | set_breakpoint_count (breakpoint_count + 1); |
10541 | b->number = breakpoint_count; | |
10542 | b->disposition = disp_donttouch; | |
f8eba3c6 TT |
10543 | b->addr_string = xstrdup (addr_string_start); |
10544 | b->addr_string_range_end = xstrdup (addr_string_end); | |
f1310107 TJB |
10545 | b->loc->length = length; |
10546 | ||
f8eba3c6 | 10547 | do_cleanups (cleanup_bkpt); |
f1310107 TJB |
10548 | |
10549 | mention (b); | |
8d3788bd | 10550 | observer_notify_breakpoint_created (b); |
f1310107 TJB |
10551 | update_global_location_list (1); |
10552 | } | |
10553 | ||
4a64f543 MS |
10554 | /* Return non-zero if EXP is verified as constant. Returned zero |
10555 | means EXP is variable. Also the constant detection may fail for | |
10556 | some constant expressions and in such case still falsely return | |
10557 | zero. */ | |
2e6e3d9c | 10558 | |
65d79d4b SDJ |
10559 | static int |
10560 | watchpoint_exp_is_const (const struct expression *exp) | |
10561 | { | |
10562 | int i = exp->nelts; | |
10563 | ||
10564 | while (i > 0) | |
10565 | { | |
10566 | int oplenp, argsp; | |
10567 | ||
10568 | /* We are only interested in the descriptor of each element. */ | |
10569 | operator_length (exp, i, &oplenp, &argsp); | |
10570 | i -= oplenp; | |
10571 | ||
10572 | switch (exp->elts[i].opcode) | |
10573 | { | |
10574 | case BINOP_ADD: | |
10575 | case BINOP_SUB: | |
10576 | case BINOP_MUL: | |
10577 | case BINOP_DIV: | |
10578 | case BINOP_REM: | |
10579 | case BINOP_MOD: | |
10580 | case BINOP_LSH: | |
10581 | case BINOP_RSH: | |
10582 | case BINOP_LOGICAL_AND: | |
10583 | case BINOP_LOGICAL_OR: | |
10584 | case BINOP_BITWISE_AND: | |
10585 | case BINOP_BITWISE_IOR: | |
10586 | case BINOP_BITWISE_XOR: | |
10587 | case BINOP_EQUAL: | |
10588 | case BINOP_NOTEQUAL: | |
10589 | case BINOP_LESS: | |
10590 | case BINOP_GTR: | |
10591 | case BINOP_LEQ: | |
10592 | case BINOP_GEQ: | |
10593 | case BINOP_REPEAT: | |
10594 | case BINOP_COMMA: | |
10595 | case BINOP_EXP: | |
10596 | case BINOP_MIN: | |
10597 | case BINOP_MAX: | |
10598 | case BINOP_INTDIV: | |
10599 | case BINOP_CONCAT: | |
10600 | case BINOP_IN: | |
10601 | case BINOP_RANGE: | |
10602 | case TERNOP_COND: | |
10603 | case TERNOP_SLICE: | |
65d79d4b SDJ |
10604 | |
10605 | case OP_LONG: | |
10606 | case OP_DOUBLE: | |
10607 | case OP_DECFLOAT: | |
10608 | case OP_LAST: | |
10609 | case OP_COMPLEX: | |
10610 | case OP_STRING: | |
65d79d4b SDJ |
10611 | case OP_ARRAY: |
10612 | case OP_TYPE: | |
608b4967 TT |
10613 | case OP_TYPEOF: |
10614 | case OP_DECLTYPE: | |
6e72ca20 | 10615 | case OP_TYPEID: |
65d79d4b SDJ |
10616 | case OP_NAME: |
10617 | case OP_OBJC_NSSTRING: | |
10618 | ||
10619 | case UNOP_NEG: | |
10620 | case UNOP_LOGICAL_NOT: | |
10621 | case UNOP_COMPLEMENT: | |
10622 | case UNOP_ADDR: | |
10623 | case UNOP_HIGH: | |
aeaa2474 | 10624 | case UNOP_CAST: |
9eaf6705 TT |
10625 | |
10626 | case UNOP_CAST_TYPE: | |
10627 | case UNOP_REINTERPRET_CAST: | |
10628 | case UNOP_DYNAMIC_CAST: | |
4a64f543 MS |
10629 | /* Unary, binary and ternary operators: We have to check |
10630 | their operands. If they are constant, then so is the | |
10631 | result of that operation. For instance, if A and B are | |
10632 | determined to be constants, then so is "A + B". | |
10633 | ||
10634 | UNOP_IND is one exception to the rule above, because the | |
10635 | value of *ADDR is not necessarily a constant, even when | |
10636 | ADDR is. */ | |
65d79d4b SDJ |
10637 | break; |
10638 | ||
10639 | case OP_VAR_VALUE: | |
10640 | /* Check whether the associated symbol is a constant. | |
4a64f543 | 10641 | |
65d79d4b | 10642 | We use SYMBOL_CLASS rather than TYPE_CONST because it's |
4a64f543 MS |
10643 | possible that a buggy compiler could mark a variable as |
10644 | constant even when it is not, and TYPE_CONST would return | |
10645 | true in this case, while SYMBOL_CLASS wouldn't. | |
10646 | ||
10647 | We also have to check for function symbols because they | |
10648 | are always constant. */ | |
65d79d4b SDJ |
10649 | { |
10650 | struct symbol *s = exp->elts[i + 2].symbol; | |
10651 | ||
10652 | if (SYMBOL_CLASS (s) != LOC_BLOCK | |
10653 | && SYMBOL_CLASS (s) != LOC_CONST | |
10654 | && SYMBOL_CLASS (s) != LOC_CONST_BYTES) | |
10655 | return 0; | |
10656 | break; | |
10657 | } | |
10658 | ||
10659 | /* The default action is to return 0 because we are using | |
10660 | the optimistic approach here: If we don't know something, | |
10661 | then it is not a constant. */ | |
10662 | default: | |
10663 | return 0; | |
10664 | } | |
10665 | } | |
10666 | ||
10667 | return 1; | |
10668 | } | |
10669 | ||
3a5c3e22 PA |
10670 | /* Implement the "dtor" breakpoint_ops method for watchpoints. */ |
10671 | ||
10672 | static void | |
10673 | dtor_watchpoint (struct breakpoint *self) | |
10674 | { | |
10675 | struct watchpoint *w = (struct watchpoint *) self; | |
10676 | ||
10677 | xfree (w->cond_exp); | |
10678 | xfree (w->exp); | |
10679 | xfree (w->exp_string); | |
10680 | xfree (w->exp_string_reparse); | |
10681 | value_free (w->val); | |
10682 | ||
10683 | base_breakpoint_ops.dtor (self); | |
10684 | } | |
10685 | ||
348d480f PA |
10686 | /* Implement the "re_set" breakpoint_ops method for watchpoints. */ |
10687 | ||
10688 | static void | |
10689 | re_set_watchpoint (struct breakpoint *b) | |
10690 | { | |
3a5c3e22 PA |
10691 | struct watchpoint *w = (struct watchpoint *) b; |
10692 | ||
348d480f PA |
10693 | /* Watchpoint can be either on expression using entirely global |
10694 | variables, or it can be on local variables. | |
10695 | ||
10696 | Watchpoints of the first kind are never auto-deleted, and even | |
10697 | persist across program restarts. Since they can use variables | |
10698 | from shared libraries, we need to reparse expression as libraries | |
10699 | are loaded and unloaded. | |
10700 | ||
10701 | Watchpoints on local variables can also change meaning as result | |
10702 | of solib event. For example, if a watchpoint uses both a local | |
10703 | and a global variables in expression, it's a local watchpoint, | |
10704 | but unloading of a shared library will make the expression | |
10705 | invalid. This is not a very common use case, but we still | |
10706 | re-evaluate expression, to avoid surprises to the user. | |
10707 | ||
10708 | Note that for local watchpoints, we re-evaluate it only if | |
10709 | watchpoints frame id is still valid. If it's not, it means the | |
10710 | watchpoint is out of scope and will be deleted soon. In fact, | |
10711 | I'm not sure we'll ever be called in this case. | |
10712 | ||
10713 | If a local watchpoint's frame id is still valid, then | |
3a5c3e22 | 10714 | w->exp_valid_block is likewise valid, and we can safely use it. |
348d480f | 10715 | |
3a5c3e22 PA |
10716 | Don't do anything about disabled watchpoints, since they will be |
10717 | reevaluated again when enabled. */ | |
10718 | update_watchpoint (w, 1 /* reparse */); | |
348d480f PA |
10719 | } |
10720 | ||
77b06cd7 TJB |
10721 | /* Implement the "insert" breakpoint_ops method for hardware watchpoints. */ |
10722 | ||
10723 | static int | |
10724 | insert_watchpoint (struct bp_location *bl) | |
10725 | { | |
3a5c3e22 PA |
10726 | struct watchpoint *w = (struct watchpoint *) bl->owner; |
10727 | int length = w->exact ? 1 : bl->length; | |
e09342b5 TJB |
10728 | |
10729 | return target_insert_watchpoint (bl->address, length, bl->watchpoint_type, | |
3a5c3e22 | 10730 | w->cond_exp); |
77b06cd7 TJB |
10731 | } |
10732 | ||
10733 | /* Implement the "remove" breakpoint_ops method for hardware watchpoints. */ | |
10734 | ||
10735 | static int | |
10736 | remove_watchpoint (struct bp_location *bl) | |
10737 | { | |
3a5c3e22 PA |
10738 | struct watchpoint *w = (struct watchpoint *) bl->owner; |
10739 | int length = w->exact ? 1 : bl->length; | |
e09342b5 TJB |
10740 | |
10741 | return target_remove_watchpoint (bl->address, length, bl->watchpoint_type, | |
3a5c3e22 | 10742 | w->cond_exp); |
e09342b5 TJB |
10743 | } |
10744 | ||
e09342b5 | 10745 | static int |
348d480f | 10746 | breakpoint_hit_watchpoint (const struct bp_location *bl, |
09ac7c10 TT |
10747 | struct address_space *aspace, CORE_ADDR bp_addr, |
10748 | const struct target_waitstatus *ws) | |
e09342b5 | 10749 | { |
348d480f | 10750 | struct breakpoint *b = bl->owner; |
3a5c3e22 | 10751 | struct watchpoint *w = (struct watchpoint *) b; |
77b06cd7 | 10752 | |
348d480f PA |
10753 | /* Continuable hardware watchpoints are treated as non-existent if the |
10754 | reason we stopped wasn't a hardware watchpoint (we didn't stop on | |
10755 | some data address). Otherwise gdb won't stop on a break instruction | |
10756 | in the code (not from a breakpoint) when a hardware watchpoint has | |
10757 | been defined. Also skip watchpoints which we know did not trigger | |
10758 | (did not match the data address). */ | |
10759 | if (is_hardware_watchpoint (b) | |
3a5c3e22 | 10760 | && w->watchpoint_triggered == watch_triggered_no) |
348d480f | 10761 | return 0; |
9c06b0b4 | 10762 | |
348d480f | 10763 | return 1; |
9c06b0b4 TJB |
10764 | } |
10765 | ||
348d480f PA |
10766 | static void |
10767 | check_status_watchpoint (bpstat bs) | |
9c06b0b4 | 10768 | { |
348d480f | 10769 | gdb_assert (is_watchpoint (bs->breakpoint_at)); |
9c06b0b4 | 10770 | |
348d480f | 10771 | bpstat_check_watchpoint (bs); |
9c06b0b4 TJB |
10772 | } |
10773 | ||
10774 | /* Implement the "resources_needed" breakpoint_ops method for | |
348d480f | 10775 | hardware watchpoints. */ |
9c06b0b4 TJB |
10776 | |
10777 | static int | |
348d480f | 10778 | resources_needed_watchpoint (const struct bp_location *bl) |
9c06b0b4 | 10779 | { |
3a5c3e22 PA |
10780 | struct watchpoint *w = (struct watchpoint *) bl->owner; |
10781 | int length = w->exact? 1 : bl->length; | |
348d480f PA |
10782 | |
10783 | return target_region_ok_for_hw_watchpoint (bl->address, length); | |
9c06b0b4 TJB |
10784 | } |
10785 | ||
10786 | /* Implement the "works_in_software_mode" breakpoint_ops method for | |
348d480f | 10787 | hardware watchpoints. */ |
9c06b0b4 TJB |
10788 | |
10789 | static int | |
348d480f | 10790 | works_in_software_mode_watchpoint (const struct breakpoint *b) |
9c06b0b4 | 10791 | { |
efa80663 PA |
10792 | /* Read and access watchpoints only work with hardware support. */ |
10793 | return b->type == bp_watchpoint || b->type == bp_hardware_watchpoint; | |
9c06b0b4 TJB |
10794 | } |
10795 | ||
9c06b0b4 | 10796 | static enum print_stop_action |
348d480f | 10797 | print_it_watchpoint (bpstat bs) |
9c06b0b4 | 10798 | { |
348d480f PA |
10799 | struct cleanup *old_chain; |
10800 | struct breakpoint *b; | |
f99d8bf4 | 10801 | struct ui_file *stb; |
348d480f | 10802 | enum print_stop_action result; |
3a5c3e22 | 10803 | struct watchpoint *w; |
79a45e25 | 10804 | struct ui_out *uiout = current_uiout; |
348d480f PA |
10805 | |
10806 | gdb_assert (bs->bp_location_at != NULL); | |
10807 | ||
348d480f | 10808 | b = bs->breakpoint_at; |
3a5c3e22 | 10809 | w = (struct watchpoint *) b; |
348d480f | 10810 | |
f99d8bf4 PA |
10811 | stb = mem_fileopen (); |
10812 | old_chain = make_cleanup_ui_file_delete (stb); | |
9c06b0b4 TJB |
10813 | |
10814 | switch (b->type) | |
10815 | { | |
348d480f | 10816 | case bp_watchpoint: |
9c06b0b4 TJB |
10817 | case bp_hardware_watchpoint: |
10818 | annotate_watchpoint (b->number); | |
10819 | if (ui_out_is_mi_like_p (uiout)) | |
10820 | ui_out_field_string | |
10821 | (uiout, "reason", | |
10822 | async_reason_lookup (EXEC_ASYNC_WATCHPOINT_TRIGGER)); | |
348d480f PA |
10823 | mention (b); |
10824 | make_cleanup_ui_out_tuple_begin_end (uiout, "value"); | |
10825 | ui_out_text (uiout, "\nOld value = "); | |
f99d8bf4 | 10826 | watchpoint_value_print (bs->old_val, stb); |
348d480f PA |
10827 | ui_out_field_stream (uiout, "old", stb); |
10828 | ui_out_text (uiout, "\nNew value = "); | |
f99d8bf4 | 10829 | watchpoint_value_print (w->val, stb); |
348d480f PA |
10830 | ui_out_field_stream (uiout, "new", stb); |
10831 | ui_out_text (uiout, "\n"); | |
10832 | /* More than one watchpoint may have been triggered. */ | |
10833 | result = PRINT_UNKNOWN; | |
9c06b0b4 TJB |
10834 | break; |
10835 | ||
10836 | case bp_read_watchpoint: | |
10837 | if (ui_out_is_mi_like_p (uiout)) | |
10838 | ui_out_field_string | |
10839 | (uiout, "reason", | |
10840 | async_reason_lookup (EXEC_ASYNC_READ_WATCHPOINT_TRIGGER)); | |
348d480f PA |
10841 | mention (b); |
10842 | make_cleanup_ui_out_tuple_begin_end (uiout, "value"); | |
10843 | ui_out_text (uiout, "\nValue = "); | |
f99d8bf4 | 10844 | watchpoint_value_print (w->val, stb); |
348d480f PA |
10845 | ui_out_field_stream (uiout, "value", stb); |
10846 | ui_out_text (uiout, "\n"); | |
10847 | result = PRINT_UNKNOWN; | |
9c06b0b4 TJB |
10848 | break; |
10849 | ||
10850 | case bp_access_watchpoint: | |
348d480f PA |
10851 | if (bs->old_val != NULL) |
10852 | { | |
10853 | annotate_watchpoint (b->number); | |
10854 | if (ui_out_is_mi_like_p (uiout)) | |
10855 | ui_out_field_string | |
10856 | (uiout, "reason", | |
10857 | async_reason_lookup (EXEC_ASYNC_ACCESS_WATCHPOINT_TRIGGER)); | |
10858 | mention (b); | |
10859 | make_cleanup_ui_out_tuple_begin_end (uiout, "value"); | |
10860 | ui_out_text (uiout, "\nOld value = "); | |
f99d8bf4 | 10861 | watchpoint_value_print (bs->old_val, stb); |
348d480f PA |
10862 | ui_out_field_stream (uiout, "old", stb); |
10863 | ui_out_text (uiout, "\nNew value = "); | |
10864 | } | |
10865 | else | |
10866 | { | |
10867 | mention (b); | |
10868 | if (ui_out_is_mi_like_p (uiout)) | |
10869 | ui_out_field_string | |
10870 | (uiout, "reason", | |
10871 | async_reason_lookup (EXEC_ASYNC_ACCESS_WATCHPOINT_TRIGGER)); | |
10872 | make_cleanup_ui_out_tuple_begin_end (uiout, "value"); | |
10873 | ui_out_text (uiout, "\nValue = "); | |
10874 | } | |
f99d8bf4 | 10875 | watchpoint_value_print (w->val, stb); |
348d480f PA |
10876 | ui_out_field_stream (uiout, "new", stb); |
10877 | ui_out_text (uiout, "\n"); | |
10878 | result = PRINT_UNKNOWN; | |
9c06b0b4 TJB |
10879 | break; |
10880 | default: | |
348d480f | 10881 | result = PRINT_UNKNOWN; |
9c06b0b4 TJB |
10882 | } |
10883 | ||
348d480f PA |
10884 | do_cleanups (old_chain); |
10885 | return result; | |
10886 | } | |
10887 | ||
10888 | /* Implement the "print_mention" breakpoint_ops method for hardware | |
10889 | watchpoints. */ | |
10890 | ||
10891 | static void | |
10892 | print_mention_watchpoint (struct breakpoint *b) | |
10893 | { | |
10894 | struct cleanup *ui_out_chain; | |
3a5c3e22 | 10895 | struct watchpoint *w = (struct watchpoint *) b; |
79a45e25 | 10896 | struct ui_out *uiout = current_uiout; |
348d480f PA |
10897 | |
10898 | switch (b->type) | |
10899 | { | |
10900 | case bp_watchpoint: | |
10901 | ui_out_text (uiout, "Watchpoint "); | |
10902 | ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "wpt"); | |
10903 | break; | |
10904 | case bp_hardware_watchpoint: | |
10905 | ui_out_text (uiout, "Hardware watchpoint "); | |
10906 | ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "wpt"); | |
10907 | break; | |
10908 | case bp_read_watchpoint: | |
10909 | ui_out_text (uiout, "Hardware read watchpoint "); | |
10910 | ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "hw-rwpt"); | |
10911 | break; | |
10912 | case bp_access_watchpoint: | |
10913 | ui_out_text (uiout, "Hardware access (read/write) watchpoint "); | |
10914 | ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "hw-awpt"); | |
10915 | break; | |
10916 | default: | |
10917 | internal_error (__FILE__, __LINE__, | |
10918 | _("Invalid hardware watchpoint type.")); | |
10919 | } | |
10920 | ||
10921 | ui_out_field_int (uiout, "number", b->number); | |
10922 | ui_out_text (uiout, ": "); | |
3a5c3e22 | 10923 | ui_out_field_string (uiout, "exp", w->exp_string); |
348d480f PA |
10924 | do_cleanups (ui_out_chain); |
10925 | } | |
10926 | ||
10927 | /* Implement the "print_recreate" breakpoint_ops method for | |
10928 | watchpoints. */ | |
10929 | ||
10930 | static void | |
10931 | print_recreate_watchpoint (struct breakpoint *b, struct ui_file *fp) | |
10932 | { | |
3a5c3e22 PA |
10933 | struct watchpoint *w = (struct watchpoint *) b; |
10934 | ||
348d480f PA |
10935 | switch (b->type) |
10936 | { | |
10937 | case bp_watchpoint: | |
10938 | case bp_hardware_watchpoint: | |
10939 | fprintf_unfiltered (fp, "watch"); | |
10940 | break; | |
10941 | case bp_read_watchpoint: | |
10942 | fprintf_unfiltered (fp, "rwatch"); | |
10943 | break; | |
10944 | case bp_access_watchpoint: | |
10945 | fprintf_unfiltered (fp, "awatch"); | |
10946 | break; | |
10947 | default: | |
10948 | internal_error (__FILE__, __LINE__, | |
10949 | _("Invalid watchpoint type.")); | |
10950 | } | |
10951 | ||
3a5c3e22 | 10952 | fprintf_unfiltered (fp, " %s", w->exp_string); |
d9b3f62e | 10953 | print_recreate_thread (b, fp); |
348d480f PA |
10954 | } |
10955 | ||
427cd150 TT |
10956 | /* Implement the "explains_signal" breakpoint_ops method for |
10957 | watchpoints. */ | |
10958 | ||
47591c29 | 10959 | static int |
427cd150 TT |
10960 | explains_signal_watchpoint (struct breakpoint *b, enum gdb_signal sig) |
10961 | { | |
10962 | /* A software watchpoint cannot cause a signal other than | |
10963 | GDB_SIGNAL_TRAP. */ | |
10964 | if (b->type == bp_watchpoint && sig != GDB_SIGNAL_TRAP) | |
47591c29 | 10965 | return 0; |
427cd150 | 10966 | |
47591c29 | 10967 | return 1; |
427cd150 TT |
10968 | } |
10969 | ||
348d480f PA |
10970 | /* The breakpoint_ops structure to be used in hardware watchpoints. */ |
10971 | ||
2060206e | 10972 | static struct breakpoint_ops watchpoint_breakpoint_ops; |
348d480f PA |
10973 | |
10974 | /* Implement the "insert" breakpoint_ops method for | |
10975 | masked hardware watchpoints. */ | |
10976 | ||
10977 | static int | |
10978 | insert_masked_watchpoint (struct bp_location *bl) | |
10979 | { | |
3a5c3e22 PA |
10980 | struct watchpoint *w = (struct watchpoint *) bl->owner; |
10981 | ||
10982 | return target_insert_mask_watchpoint (bl->address, w->hw_wp_mask, | |
348d480f PA |
10983 | bl->watchpoint_type); |
10984 | } | |
10985 | ||
10986 | /* Implement the "remove" breakpoint_ops method for | |
10987 | masked hardware watchpoints. */ | |
10988 | ||
10989 | static int | |
10990 | remove_masked_watchpoint (struct bp_location *bl) | |
10991 | { | |
3a5c3e22 PA |
10992 | struct watchpoint *w = (struct watchpoint *) bl->owner; |
10993 | ||
10994 | return target_remove_mask_watchpoint (bl->address, w->hw_wp_mask, | |
348d480f PA |
10995 | bl->watchpoint_type); |
10996 | } | |
10997 | ||
10998 | /* Implement the "resources_needed" breakpoint_ops method for | |
10999 | masked hardware watchpoints. */ | |
11000 | ||
11001 | static int | |
11002 | resources_needed_masked_watchpoint (const struct bp_location *bl) | |
11003 | { | |
3a5c3e22 PA |
11004 | struct watchpoint *w = (struct watchpoint *) bl->owner; |
11005 | ||
11006 | return target_masked_watch_num_registers (bl->address, w->hw_wp_mask); | |
348d480f PA |
11007 | } |
11008 | ||
11009 | /* Implement the "works_in_software_mode" breakpoint_ops method for | |
11010 | masked hardware watchpoints. */ | |
11011 | ||
11012 | static int | |
11013 | works_in_software_mode_masked_watchpoint (const struct breakpoint *b) | |
11014 | { | |
11015 | return 0; | |
11016 | } | |
11017 | ||
11018 | /* Implement the "print_it" breakpoint_ops method for | |
11019 | masked hardware watchpoints. */ | |
11020 | ||
11021 | static enum print_stop_action | |
11022 | print_it_masked_watchpoint (bpstat bs) | |
11023 | { | |
11024 | struct breakpoint *b = bs->breakpoint_at; | |
79a45e25 | 11025 | struct ui_out *uiout = current_uiout; |
348d480f PA |
11026 | |
11027 | /* Masked watchpoints have only one location. */ | |
11028 | gdb_assert (b->loc && b->loc->next == NULL); | |
11029 | ||
11030 | switch (b->type) | |
11031 | { | |
11032 | case bp_hardware_watchpoint: | |
11033 | annotate_watchpoint (b->number); | |
11034 | if (ui_out_is_mi_like_p (uiout)) | |
11035 | ui_out_field_string | |
11036 | (uiout, "reason", | |
11037 | async_reason_lookup (EXEC_ASYNC_WATCHPOINT_TRIGGER)); | |
11038 | break; | |
11039 | ||
11040 | case bp_read_watchpoint: | |
11041 | if (ui_out_is_mi_like_p (uiout)) | |
11042 | ui_out_field_string | |
11043 | (uiout, "reason", | |
11044 | async_reason_lookup (EXEC_ASYNC_READ_WATCHPOINT_TRIGGER)); | |
11045 | break; | |
11046 | ||
11047 | case bp_access_watchpoint: | |
11048 | if (ui_out_is_mi_like_p (uiout)) | |
11049 | ui_out_field_string | |
11050 | (uiout, "reason", | |
11051 | async_reason_lookup (EXEC_ASYNC_ACCESS_WATCHPOINT_TRIGGER)); | |
11052 | break; | |
11053 | default: | |
11054 | internal_error (__FILE__, __LINE__, | |
11055 | _("Invalid hardware watchpoint type.")); | |
11056 | } | |
11057 | ||
11058 | mention (b); | |
9c06b0b4 TJB |
11059 | ui_out_text (uiout, _("\n\ |
11060 | Check the underlying instruction at PC for the memory\n\ | |
11061 | address and value which triggered this watchpoint.\n")); | |
11062 | ui_out_text (uiout, "\n"); | |
11063 | ||
11064 | /* More than one watchpoint may have been triggered. */ | |
11065 | return PRINT_UNKNOWN; | |
11066 | } | |
11067 | ||
11068 | /* Implement the "print_one_detail" breakpoint_ops method for | |
11069 | masked hardware watchpoints. */ | |
11070 | ||
11071 | static void | |
11072 | print_one_detail_masked_watchpoint (const struct breakpoint *b, | |
11073 | struct ui_out *uiout) | |
11074 | { | |
3a5c3e22 PA |
11075 | struct watchpoint *w = (struct watchpoint *) b; |
11076 | ||
9c06b0b4 TJB |
11077 | /* Masked watchpoints have only one location. */ |
11078 | gdb_assert (b->loc && b->loc->next == NULL); | |
11079 | ||
11080 | ui_out_text (uiout, "\tmask "); | |
3a5c3e22 | 11081 | ui_out_field_core_addr (uiout, "mask", b->loc->gdbarch, w->hw_wp_mask); |
9c06b0b4 TJB |
11082 | ui_out_text (uiout, "\n"); |
11083 | } | |
11084 | ||
11085 | /* Implement the "print_mention" breakpoint_ops method for | |
11086 | masked hardware watchpoints. */ | |
11087 | ||
11088 | static void | |
11089 | print_mention_masked_watchpoint (struct breakpoint *b) | |
11090 | { | |
3a5c3e22 | 11091 | struct watchpoint *w = (struct watchpoint *) b; |
79a45e25 | 11092 | struct ui_out *uiout = current_uiout; |
9c06b0b4 TJB |
11093 | struct cleanup *ui_out_chain; |
11094 | ||
11095 | switch (b->type) | |
11096 | { | |
11097 | case bp_hardware_watchpoint: | |
11098 | ui_out_text (uiout, "Masked hardware watchpoint "); | |
11099 | ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "wpt"); | |
11100 | break; | |
11101 | case bp_read_watchpoint: | |
11102 | ui_out_text (uiout, "Masked hardware read watchpoint "); | |
11103 | ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "hw-rwpt"); | |
11104 | break; | |
11105 | case bp_access_watchpoint: | |
11106 | ui_out_text (uiout, "Masked hardware access (read/write) watchpoint "); | |
11107 | ui_out_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "hw-awpt"); | |
11108 | break; | |
11109 | default: | |
11110 | internal_error (__FILE__, __LINE__, | |
11111 | _("Invalid hardware watchpoint type.")); | |
11112 | } | |
11113 | ||
11114 | ui_out_field_int (uiout, "number", b->number); | |
11115 | ui_out_text (uiout, ": "); | |
3a5c3e22 | 11116 | ui_out_field_string (uiout, "exp", w->exp_string); |
9c06b0b4 TJB |
11117 | do_cleanups (ui_out_chain); |
11118 | } | |
11119 | ||
11120 | /* Implement the "print_recreate" breakpoint_ops method for | |
11121 | masked hardware watchpoints. */ | |
11122 | ||
11123 | static void | |
11124 | print_recreate_masked_watchpoint (struct breakpoint *b, struct ui_file *fp) | |
11125 | { | |
3a5c3e22 | 11126 | struct watchpoint *w = (struct watchpoint *) b; |
9c06b0b4 TJB |
11127 | char tmp[40]; |
11128 | ||
11129 | switch (b->type) | |
11130 | { | |
11131 | case bp_hardware_watchpoint: | |
11132 | fprintf_unfiltered (fp, "watch"); | |
11133 | break; | |
11134 | case bp_read_watchpoint: | |
11135 | fprintf_unfiltered (fp, "rwatch"); | |
11136 | break; | |
11137 | case bp_access_watchpoint: | |
11138 | fprintf_unfiltered (fp, "awatch"); | |
11139 | break; | |
11140 | default: | |
11141 | internal_error (__FILE__, __LINE__, | |
11142 | _("Invalid hardware watchpoint type.")); | |
11143 | } | |
11144 | ||
3a5c3e22 PA |
11145 | sprintf_vma (tmp, w->hw_wp_mask); |
11146 | fprintf_unfiltered (fp, " %s mask 0x%s", w->exp_string, tmp); | |
d9b3f62e | 11147 | print_recreate_thread (b, fp); |
9c06b0b4 TJB |
11148 | } |
11149 | ||
11150 | /* The breakpoint_ops structure to be used in masked hardware watchpoints. */ | |
11151 | ||
2060206e | 11152 | static struct breakpoint_ops masked_watchpoint_breakpoint_ops; |
9c06b0b4 TJB |
11153 | |
11154 | /* Tell whether the given watchpoint is a masked hardware watchpoint. */ | |
11155 | ||
11156 | static int | |
11157 | is_masked_watchpoint (const struct breakpoint *b) | |
11158 | { | |
11159 | return b->ops == &masked_watchpoint_breakpoint_ops; | |
11160 | } | |
11161 | ||
53a5351d JM |
11162 | /* accessflag: hw_write: watch write, |
11163 | hw_read: watch read, | |
11164 | hw_access: watch access (read or write) */ | |
c906108c | 11165 | static void |
bbc13ae3 | 11166 | watch_command_1 (const char *arg, int accessflag, int from_tty, |
84f4c1fe | 11167 | int just_location, int internal) |
c906108c | 11168 | { |
a9634178 | 11169 | volatile struct gdb_exception e; |
d983da9c | 11170 | struct breakpoint *b, *scope_breakpoint = NULL; |
c906108c | 11171 | struct expression *exp; |
270140bd | 11172 | const struct block *exp_valid_block = NULL, *cond_exp_valid_block = NULL; |
a1442452 | 11173 | struct value *val, *mark, *result; |
c906108c | 11174 | struct frame_info *frame; |
bbc13ae3 KS |
11175 | const char *exp_start = NULL; |
11176 | const char *exp_end = NULL; | |
11177 | const char *tok, *end_tok; | |
9c06b0b4 | 11178 | int toklen = -1; |
bbc13ae3 KS |
11179 | const char *cond_start = NULL; |
11180 | const char *cond_end = NULL; | |
c906108c | 11181 | enum bptype bp_type; |
37e4754d | 11182 | int thread = -1; |
0cf6dd15 | 11183 | int pc = 0; |
9c06b0b4 TJB |
11184 | /* Flag to indicate whether we are going to use masks for |
11185 | the hardware watchpoint. */ | |
11186 | int use_mask = 0; | |
11187 | CORE_ADDR mask = 0; | |
3a5c3e22 | 11188 | struct watchpoint *w; |
bbc13ae3 KS |
11189 | char *expression; |
11190 | struct cleanup *back_to; | |
c906108c | 11191 | |
37e4754d LM |
11192 | /* Make sure that we actually have parameters to parse. */ |
11193 | if (arg != NULL && arg[0] != '\0') | |
11194 | { | |
bbc13ae3 KS |
11195 | const char *value_start; |
11196 | ||
11197 | exp_end = arg + strlen (arg); | |
37e4754d | 11198 | |
9c06b0b4 TJB |
11199 | /* Look for "parameter value" pairs at the end |
11200 | of the arguments string. */ | |
bbc13ae3 | 11201 | for (tok = exp_end - 1; tok > arg; tok--) |
9c06b0b4 TJB |
11202 | { |
11203 | /* Skip whitespace at the end of the argument list. */ | |
11204 | while (tok > arg && (*tok == ' ' || *tok == '\t')) | |
11205 | tok--; | |
11206 | ||
11207 | /* Find the beginning of the last token. | |
11208 | This is the value of the parameter. */ | |
11209 | while (tok > arg && (*tok != ' ' && *tok != '\t')) | |
11210 | tok--; | |
11211 | value_start = tok + 1; | |
11212 | ||
11213 | /* Skip whitespace. */ | |
11214 | while (tok > arg && (*tok == ' ' || *tok == '\t')) | |
11215 | tok--; | |
11216 | ||
11217 | end_tok = tok; | |
11218 | ||
11219 | /* Find the beginning of the second to last token. | |
11220 | This is the parameter itself. */ | |
11221 | while (tok > arg && (*tok != ' ' && *tok != '\t')) | |
11222 | tok--; | |
11223 | tok++; | |
11224 | toklen = end_tok - tok + 1; | |
11225 | ||
11226 | if (toklen == 6 && !strncmp (tok, "thread", 6)) | |
11227 | { | |
11228 | /* At this point we've found a "thread" token, which means | |
11229 | the user is trying to set a watchpoint that triggers | |
11230 | only in a specific thread. */ | |
11231 | char *endp; | |
37e4754d | 11232 | |
9c06b0b4 TJB |
11233 | if (thread != -1) |
11234 | error(_("You can specify only one thread.")); | |
37e4754d | 11235 | |
9c06b0b4 TJB |
11236 | /* Extract the thread ID from the next token. */ |
11237 | thread = strtol (value_start, &endp, 0); | |
37e4754d | 11238 | |
9c06b0b4 TJB |
11239 | /* Check if the user provided a valid numeric value for the |
11240 | thread ID. */ | |
11241 | if (*endp != ' ' && *endp != '\t' && *endp != '\0') | |
11242 | error (_("Invalid thread ID specification %s."), value_start); | |
11243 | ||
11244 | /* Check if the thread actually exists. */ | |
11245 | if (!valid_thread_id (thread)) | |
af4908ba | 11246 | invalid_thread_id_error (thread); |
9c06b0b4 TJB |
11247 | } |
11248 | else if (toklen == 4 && !strncmp (tok, "mask", 4)) | |
11249 | { | |
11250 | /* We've found a "mask" token, which means the user wants to | |
11251 | create a hardware watchpoint that is going to have the mask | |
11252 | facility. */ | |
11253 | struct value *mask_value, *mark; | |
37e4754d | 11254 | |
9c06b0b4 TJB |
11255 | if (use_mask) |
11256 | error(_("You can specify only one mask.")); | |
37e4754d | 11257 | |
9c06b0b4 | 11258 | use_mask = just_location = 1; |
37e4754d | 11259 | |
9c06b0b4 TJB |
11260 | mark = value_mark (); |
11261 | mask_value = parse_to_comma_and_eval (&value_start); | |
11262 | mask = value_as_address (mask_value); | |
11263 | value_free_to_mark (mark); | |
11264 | } | |
11265 | else | |
11266 | /* We didn't recognize what we found. We should stop here. */ | |
11267 | break; | |
37e4754d | 11268 | |
9c06b0b4 TJB |
11269 | /* Truncate the string and get rid of the "parameter value" pair before |
11270 | the arguments string is parsed by the parse_exp_1 function. */ | |
bbc13ae3 | 11271 | exp_end = tok; |
9c06b0b4 | 11272 | } |
37e4754d | 11273 | } |
bbc13ae3 KS |
11274 | else |
11275 | exp_end = arg; | |
37e4754d | 11276 | |
bbc13ae3 KS |
11277 | /* Parse the rest of the arguments. From here on out, everything |
11278 | is in terms of a newly allocated string instead of the original | |
11279 | ARG. */ | |
c906108c | 11280 | innermost_block = NULL; |
bbc13ae3 KS |
11281 | expression = savestring (arg, exp_end - arg); |
11282 | back_to = make_cleanup (xfree, expression); | |
11283 | exp_start = arg = expression; | |
1bb9788d | 11284 | exp = parse_exp_1 (&arg, 0, 0, 0); |
c906108c | 11285 | exp_end = arg; |
fa8a61dc TT |
11286 | /* Remove trailing whitespace from the expression before saving it. |
11287 | This makes the eventual display of the expression string a bit | |
11288 | prettier. */ | |
11289 | while (exp_end > exp_start && (exp_end[-1] == ' ' || exp_end[-1] == '\t')) | |
11290 | --exp_end; | |
11291 | ||
65d79d4b SDJ |
11292 | /* Checking if the expression is not constant. */ |
11293 | if (watchpoint_exp_is_const (exp)) | |
11294 | { | |
11295 | int len; | |
11296 | ||
11297 | len = exp_end - exp_start; | |
11298 | while (len > 0 && isspace (exp_start[len - 1])) | |
11299 | len--; | |
11300 | error (_("Cannot watch constant value `%.*s'."), len, exp_start); | |
11301 | } | |
11302 | ||
c906108c SS |
11303 | exp_valid_block = innermost_block; |
11304 | mark = value_mark (); | |
3a1115a0 | 11305 | fetch_subexp_value (exp, &pc, &val, &result, NULL, just_location); |
06a64a0b TT |
11306 | |
11307 | if (just_location) | |
11308 | { | |
9c06b0b4 TJB |
11309 | int ret; |
11310 | ||
06a64a0b | 11311 | exp_valid_block = NULL; |
a1442452 | 11312 | val = value_addr (result); |
06a64a0b TT |
11313 | release_value (val); |
11314 | value_free_to_mark (mark); | |
9c06b0b4 TJB |
11315 | |
11316 | if (use_mask) | |
11317 | { | |
11318 | ret = target_masked_watch_num_registers (value_as_address (val), | |
11319 | mask); | |
11320 | if (ret == -1) | |
11321 | error (_("This target does not support masked watchpoints.")); | |
11322 | else if (ret == -2) | |
11323 | error (_("Invalid mask or memory region.")); | |
11324 | } | |
06a64a0b TT |
11325 | } |
11326 | else if (val != NULL) | |
fa4727a6 | 11327 | release_value (val); |
c906108c | 11328 | |
bbc13ae3 KS |
11329 | tok = skip_spaces_const (arg); |
11330 | end_tok = skip_to_space_const (tok); | |
c906108c SS |
11331 | |
11332 | toklen = end_tok - tok; | |
11333 | if (toklen >= 1 && strncmp (tok, "if", toklen) == 0) | |
11334 | { | |
2d134ed3 PA |
11335 | struct expression *cond; |
11336 | ||
60e1c644 | 11337 | innermost_block = NULL; |
c906108c | 11338 | tok = cond_start = end_tok + 1; |
1bb9788d | 11339 | cond = parse_exp_1 (&tok, 0, 0, 0); |
60e1c644 PA |
11340 | |
11341 | /* The watchpoint expression may not be local, but the condition | |
11342 | may still be. E.g.: `watch global if local > 0'. */ | |
11343 | cond_exp_valid_block = innermost_block; | |
11344 | ||
2d134ed3 | 11345 | xfree (cond); |
c906108c SS |
11346 | cond_end = tok; |
11347 | } | |
11348 | if (*tok) | |
8a3fe4f8 | 11349 | error (_("Junk at end of command.")); |
c906108c | 11350 | |
d983da9c | 11351 | frame = block_innermost_frame (exp_valid_block); |
d983da9c DJ |
11352 | |
11353 | /* If the expression is "local", then set up a "watchpoint scope" | |
11354 | breakpoint at the point where we've left the scope of the watchpoint | |
11355 | expression. Create the scope breakpoint before the watchpoint, so | |
11356 | that we will encounter it first in bpstat_stop_status. */ | |
60e1c644 | 11357 | if (exp_valid_block && frame) |
d983da9c | 11358 | { |
edb3359d DJ |
11359 | if (frame_id_p (frame_unwind_caller_id (frame))) |
11360 | { | |
11361 | scope_breakpoint | |
a6d9a66e UW |
11362 | = create_internal_breakpoint (frame_unwind_caller_arch (frame), |
11363 | frame_unwind_caller_pc (frame), | |
06edf0c0 PA |
11364 | bp_watchpoint_scope, |
11365 | &momentary_breakpoint_ops); | |
d983da9c | 11366 | |
edb3359d | 11367 | scope_breakpoint->enable_state = bp_enabled; |
d983da9c | 11368 | |
edb3359d DJ |
11369 | /* Automatically delete the breakpoint when it hits. */ |
11370 | scope_breakpoint->disposition = disp_del; | |
d983da9c | 11371 | |
edb3359d DJ |
11372 | /* Only break in the proper frame (help with recursion). */ |
11373 | scope_breakpoint->frame_id = frame_unwind_caller_id (frame); | |
d983da9c | 11374 | |
edb3359d | 11375 | /* Set the address at which we will stop. */ |
a6d9a66e UW |
11376 | scope_breakpoint->loc->gdbarch |
11377 | = frame_unwind_caller_arch (frame); | |
edb3359d DJ |
11378 | scope_breakpoint->loc->requested_address |
11379 | = frame_unwind_caller_pc (frame); | |
11380 | scope_breakpoint->loc->address | |
a6d9a66e UW |
11381 | = adjust_breakpoint_address (scope_breakpoint->loc->gdbarch, |
11382 | scope_breakpoint->loc->requested_address, | |
edb3359d DJ |
11383 | scope_breakpoint->type); |
11384 | } | |
d983da9c DJ |
11385 | } |
11386 | ||
e8369a73 AB |
11387 | /* Now set up the breakpoint. We create all watchpoints as hardware |
11388 | watchpoints here even if hardware watchpoints are turned off, a call | |
11389 | to update_watchpoint later in this function will cause the type to | |
11390 | drop back to bp_watchpoint (software watchpoint) if required. */ | |
11391 | ||
11392 | if (accessflag == hw_read) | |
11393 | bp_type = bp_read_watchpoint; | |
11394 | else if (accessflag == hw_access) | |
11395 | bp_type = bp_access_watchpoint; | |
11396 | else | |
11397 | bp_type = bp_hardware_watchpoint; | |
3a5c3e22 PA |
11398 | |
11399 | w = XCNEW (struct watchpoint); | |
11400 | b = &w->base; | |
348d480f | 11401 | if (use_mask) |
3a5c3e22 PA |
11402 | init_raw_breakpoint_without_location (b, NULL, bp_type, |
11403 | &masked_watchpoint_breakpoint_ops); | |
348d480f | 11404 | else |
3a5c3e22 PA |
11405 | init_raw_breakpoint_without_location (b, NULL, bp_type, |
11406 | &watchpoint_breakpoint_ops); | |
37e4754d | 11407 | b->thread = thread; |
b5de0fa7 | 11408 | b->disposition = disp_donttouch; |
348d480f | 11409 | b->pspace = current_program_space; |
3a5c3e22 PA |
11410 | w->exp = exp; |
11411 | w->exp_valid_block = exp_valid_block; | |
11412 | w->cond_exp_valid_block = cond_exp_valid_block; | |
06a64a0b TT |
11413 | if (just_location) |
11414 | { | |
11415 | struct type *t = value_type (val); | |
11416 | CORE_ADDR addr = value_as_address (val); | |
11417 | char *name; | |
11418 | ||
11419 | t = check_typedef (TYPE_TARGET_TYPE (check_typedef (t))); | |
11420 | name = type_to_string (t); | |
11421 | ||
3a5c3e22 | 11422 | w->exp_string_reparse = xstrprintf ("* (%s *) %s", name, |
d63d0675 | 11423 | core_addr_to_string (addr)); |
06a64a0b TT |
11424 | xfree (name); |
11425 | ||
3a5c3e22 | 11426 | w->exp_string = xstrprintf ("-location %.*s", |
d63d0675 JK |
11427 | (int) (exp_end - exp_start), exp_start); |
11428 | ||
06a64a0b TT |
11429 | /* The above expression is in C. */ |
11430 | b->language = language_c; | |
11431 | } | |
11432 | else | |
3a5c3e22 | 11433 | w->exp_string = savestring (exp_start, exp_end - exp_start); |
9c06b0b4 TJB |
11434 | |
11435 | if (use_mask) | |
11436 | { | |
3a5c3e22 | 11437 | w->hw_wp_mask = mask; |
9c06b0b4 TJB |
11438 | } |
11439 | else | |
11440 | { | |
3a5c3e22 PA |
11441 | w->val = val; |
11442 | w->val_valid = 1; | |
9c06b0b4 | 11443 | } |
77b06cd7 | 11444 | |
c906108c SS |
11445 | if (cond_start) |
11446 | b->cond_string = savestring (cond_start, cond_end - cond_start); | |
11447 | else | |
11448 | b->cond_string = 0; | |
c5aa993b | 11449 | |
c906108c | 11450 | if (frame) |
f6bc2008 | 11451 | { |
3a5c3e22 PA |
11452 | w->watchpoint_frame = get_frame_id (frame); |
11453 | w->watchpoint_thread = inferior_ptid; | |
f6bc2008 | 11454 | } |
c906108c | 11455 | else |
f6bc2008 | 11456 | { |
3a5c3e22 PA |
11457 | w->watchpoint_frame = null_frame_id; |
11458 | w->watchpoint_thread = null_ptid; | |
f6bc2008 | 11459 | } |
c906108c | 11460 | |
d983da9c | 11461 | if (scope_breakpoint != NULL) |
c906108c | 11462 | { |
d983da9c DJ |
11463 | /* The scope breakpoint is related to the watchpoint. We will |
11464 | need to act on them together. */ | |
11465 | b->related_breakpoint = scope_breakpoint; | |
11466 | scope_breakpoint->related_breakpoint = b; | |
c906108c | 11467 | } |
d983da9c | 11468 | |
06a64a0b TT |
11469 | if (!just_location) |
11470 | value_free_to_mark (mark); | |
2d134ed3 | 11471 | |
a9634178 TJB |
11472 | TRY_CATCH (e, RETURN_MASK_ALL) |
11473 | { | |
11474 | /* Finally update the new watchpoint. This creates the locations | |
11475 | that should be inserted. */ | |
3a5c3e22 | 11476 | update_watchpoint (w, 1); |
a9634178 TJB |
11477 | } |
11478 | if (e.reason < 0) | |
11479 | { | |
11480 | delete_breakpoint (b); | |
11481 | throw_exception (e); | |
11482 | } | |
11483 | ||
3ea46bff | 11484 | install_breakpoint (internal, b, 1); |
bbc13ae3 | 11485 | do_cleanups (back_to); |
c906108c SS |
11486 | } |
11487 | ||
e09342b5 | 11488 | /* Return count of debug registers needed to watch the given expression. |
e09342b5 | 11489 | If the watchpoint cannot be handled in hardware return zero. */ |
c906108c | 11490 | |
c906108c | 11491 | static int |
a9634178 | 11492 | can_use_hardware_watchpoint (struct value *v) |
c906108c SS |
11493 | { |
11494 | int found_memory_cnt = 0; | |
2e70b7b9 | 11495 | struct value *head = v; |
c906108c SS |
11496 | |
11497 | /* Did the user specifically forbid us to use hardware watchpoints? */ | |
c5aa993b | 11498 | if (!can_use_hw_watchpoints) |
c906108c | 11499 | return 0; |
c5aa993b | 11500 | |
5c44784c JM |
11501 | /* Make sure that the value of the expression depends only upon |
11502 | memory contents, and values computed from them within GDB. If we | |
11503 | find any register references or function calls, we can't use a | |
11504 | hardware watchpoint. | |
11505 | ||
11506 | The idea here is that evaluating an expression generates a series | |
11507 | of values, one holding the value of every subexpression. (The | |
11508 | expression a*b+c has five subexpressions: a, b, a*b, c, and | |
11509 | a*b+c.) GDB's values hold almost enough information to establish | |
11510 | the criteria given above --- they identify memory lvalues, | |
11511 | register lvalues, computed values, etcetera. So we can evaluate | |
11512 | the expression, and then scan the chain of values that leaves | |
11513 | behind to decide whether we can detect any possible change to the | |
11514 | expression's final value using only hardware watchpoints. | |
11515 | ||
11516 | However, I don't think that the values returned by inferior | |
11517 | function calls are special in any way. So this function may not | |
11518 | notice that an expression involving an inferior function call | |
11519 | can't be watched with hardware watchpoints. FIXME. */ | |
17cf0ecd | 11520 | for (; v; v = value_next (v)) |
c906108c | 11521 | { |
5c44784c | 11522 | if (VALUE_LVAL (v) == lval_memory) |
c906108c | 11523 | { |
8464be76 DJ |
11524 | if (v != head && value_lazy (v)) |
11525 | /* A lazy memory lvalue in the chain is one that GDB never | |
11526 | needed to fetch; we either just used its address (e.g., | |
11527 | `a' in `a.b') or we never needed it at all (e.g., `a' | |
11528 | in `a,b'). This doesn't apply to HEAD; if that is | |
11529 | lazy then it was not readable, but watch it anyway. */ | |
5c44784c | 11530 | ; |
53a5351d | 11531 | else |
5c44784c JM |
11532 | { |
11533 | /* Ahh, memory we actually used! Check if we can cover | |
11534 | it with hardware watchpoints. */ | |
df407dfe | 11535 | struct type *vtype = check_typedef (value_type (v)); |
2e70b7b9 MS |
11536 | |
11537 | /* We only watch structs and arrays if user asked for it | |
11538 | explicitly, never if they just happen to appear in a | |
11539 | middle of some value chain. */ | |
11540 | if (v == head | |
11541 | || (TYPE_CODE (vtype) != TYPE_CODE_STRUCT | |
11542 | && TYPE_CODE (vtype) != TYPE_CODE_ARRAY)) | |
11543 | { | |
42ae5230 | 11544 | CORE_ADDR vaddr = value_address (v); |
e09342b5 TJB |
11545 | int len; |
11546 | int num_regs; | |
11547 | ||
a9634178 | 11548 | len = (target_exact_watchpoints |
e09342b5 TJB |
11549 | && is_scalar_type_recursive (vtype))? |
11550 | 1 : TYPE_LENGTH (value_type (v)); | |
2e70b7b9 | 11551 | |
e09342b5 TJB |
11552 | num_regs = target_region_ok_for_hw_watchpoint (vaddr, len); |
11553 | if (!num_regs) | |
2e70b7b9 MS |
11554 | return 0; |
11555 | else | |
e09342b5 | 11556 | found_memory_cnt += num_regs; |
2e70b7b9 | 11557 | } |
5c44784c | 11558 | } |
c5aa993b | 11559 | } |
5086187c AC |
11560 | else if (VALUE_LVAL (v) != not_lval |
11561 | && deprecated_value_modifiable (v) == 0) | |
38b6c3b3 | 11562 | return 0; /* These are values from the history (e.g., $1). */ |
5086187c | 11563 | else if (VALUE_LVAL (v) == lval_register) |
38b6c3b3 | 11564 | return 0; /* Cannot watch a register with a HW watchpoint. */ |
c906108c SS |
11565 | } |
11566 | ||
11567 | /* The expression itself looks suitable for using a hardware | |
11568 | watchpoint, but give the target machine a chance to reject it. */ | |
11569 | return found_memory_cnt; | |
11570 | } | |
11571 | ||
8b93c638 | 11572 | void |
84f4c1fe | 11573 | watch_command_wrapper (char *arg, int from_tty, int internal) |
8b93c638 | 11574 | { |
84f4c1fe | 11575 | watch_command_1 (arg, hw_write, from_tty, 0, internal); |
06a64a0b TT |
11576 | } |
11577 | ||
06a64a0b TT |
11578 | /* A helper function that looks for the "-location" argument and then |
11579 | calls watch_command_1. */ | |
11580 | ||
11581 | static void | |
11582 | watch_maybe_just_location (char *arg, int accessflag, int from_tty) | |
11583 | { | |
11584 | int just_location = 0; | |
11585 | ||
11586 | if (arg | |
11587 | && (check_for_argument (&arg, "-location", sizeof ("-location") - 1) | |
11588 | || check_for_argument (&arg, "-l", sizeof ("-l") - 1))) | |
11589 | { | |
e9cafbcc | 11590 | arg = skip_spaces (arg); |
06a64a0b TT |
11591 | just_location = 1; |
11592 | } | |
11593 | ||
84f4c1fe | 11594 | watch_command_1 (arg, accessflag, from_tty, just_location, 0); |
8b93c638 | 11595 | } |
8926118c | 11596 | |
c5aa993b | 11597 | static void |
fba45db2 | 11598 | watch_command (char *arg, int from_tty) |
c906108c | 11599 | { |
06a64a0b | 11600 | watch_maybe_just_location (arg, hw_write, from_tty); |
c906108c SS |
11601 | } |
11602 | ||
8b93c638 | 11603 | void |
84f4c1fe | 11604 | rwatch_command_wrapper (char *arg, int from_tty, int internal) |
8b93c638 | 11605 | { |
84f4c1fe | 11606 | watch_command_1 (arg, hw_read, from_tty, 0, internal); |
8b93c638 | 11607 | } |
8926118c | 11608 | |
c5aa993b | 11609 | static void |
fba45db2 | 11610 | rwatch_command (char *arg, int from_tty) |
c906108c | 11611 | { |
06a64a0b | 11612 | watch_maybe_just_location (arg, hw_read, from_tty); |
c906108c SS |
11613 | } |
11614 | ||
8b93c638 | 11615 | void |
84f4c1fe | 11616 | awatch_command_wrapper (char *arg, int from_tty, int internal) |
8b93c638 | 11617 | { |
84f4c1fe | 11618 | watch_command_1 (arg, hw_access, from_tty, 0, internal); |
8b93c638 | 11619 | } |
8926118c | 11620 | |
c5aa993b | 11621 | static void |
fba45db2 | 11622 | awatch_command (char *arg, int from_tty) |
c906108c | 11623 | { |
06a64a0b | 11624 | watch_maybe_just_location (arg, hw_access, from_tty); |
c906108c | 11625 | } |
c906108c | 11626 | \f |
c5aa993b | 11627 | |
43ff13b4 | 11628 | /* Helper routines for the until_command routine in infcmd.c. Here |
c906108c SS |
11629 | because it uses the mechanisms of breakpoints. */ |
11630 | ||
bfec99b2 PA |
11631 | struct until_break_command_continuation_args |
11632 | { | |
11633 | struct breakpoint *breakpoint; | |
11634 | struct breakpoint *breakpoint2; | |
186c406b | 11635 | int thread_num; |
bfec99b2 PA |
11636 | }; |
11637 | ||
43ff13b4 | 11638 | /* This function is called by fetch_inferior_event via the |
4a64f543 | 11639 | cmd_continuation pointer, to complete the until command. It takes |
43ff13b4 | 11640 | care of cleaning up the temporary breakpoints set up by the until |
4a64f543 | 11641 | command. */ |
c2c6d25f | 11642 | static void |
fa4cd53f | 11643 | until_break_command_continuation (void *arg, int err) |
43ff13b4 | 11644 | { |
bfec99b2 PA |
11645 | struct until_break_command_continuation_args *a = arg; |
11646 | ||
11647 | delete_breakpoint (a->breakpoint); | |
11648 | if (a->breakpoint2) | |
11649 | delete_breakpoint (a->breakpoint2); | |
186c406b | 11650 | delete_longjmp_breakpoint (a->thread_num); |
43ff13b4 JM |
11651 | } |
11652 | ||
c906108c | 11653 | void |
ae66c1fc | 11654 | until_break_command (char *arg, int from_tty, int anywhere) |
c906108c SS |
11655 | { |
11656 | struct symtabs_and_lines sals; | |
11657 | struct symtab_and_line sal; | |
8556afb4 PA |
11658 | struct frame_info *frame; |
11659 | struct gdbarch *frame_gdbarch; | |
11660 | struct frame_id stack_frame_id; | |
11661 | struct frame_id caller_frame_id; | |
c906108c | 11662 | struct breakpoint *breakpoint; |
f107f563 | 11663 | struct breakpoint *breakpoint2 = NULL; |
c906108c | 11664 | struct cleanup *old_chain; |
186c406b TT |
11665 | int thread; |
11666 | struct thread_info *tp; | |
c906108c SS |
11667 | |
11668 | clear_proceed_status (); | |
11669 | ||
11670 | /* Set a breakpoint where the user wants it and at return from | |
4a64f543 | 11671 | this function. */ |
c5aa993b | 11672 | |
1bfeeb0f | 11673 | if (last_displayed_sal_is_valid ()) |
f8eba3c6 | 11674 | sals = decode_line_1 (&arg, DECODE_LINE_FUNFIRSTLINE, |
1bfeeb0f | 11675 | get_last_displayed_symtab (), |
f8eba3c6 | 11676 | get_last_displayed_line ()); |
c906108c | 11677 | else |
f8eba3c6 TT |
11678 | sals = decode_line_1 (&arg, DECODE_LINE_FUNFIRSTLINE, |
11679 | (struct symtab *) NULL, 0); | |
c5aa993b | 11680 | |
c906108c | 11681 | if (sals.nelts != 1) |
8a3fe4f8 | 11682 | error (_("Couldn't get information on specified line.")); |
c5aa993b | 11683 | |
c906108c | 11684 | sal = sals.sals[0]; |
4a64f543 | 11685 | xfree (sals.sals); /* malloc'd, so freed. */ |
c5aa993b | 11686 | |
c906108c | 11687 | if (*arg) |
8a3fe4f8 | 11688 | error (_("Junk at end of arguments.")); |
c5aa993b | 11689 | |
c906108c | 11690 | resolve_sal_pc (&sal); |
c5aa993b | 11691 | |
186c406b TT |
11692 | tp = inferior_thread (); |
11693 | thread = tp->num; | |
11694 | ||
883bc8d1 PA |
11695 | old_chain = make_cleanup (null_cleanup, NULL); |
11696 | ||
8556afb4 PA |
11697 | /* Note linespec handling above invalidates the frame chain. |
11698 | Installing a breakpoint also invalidates the frame chain (as it | |
11699 | may need to switch threads), so do any frame handling before | |
11700 | that. */ | |
11701 | ||
11702 | frame = get_selected_frame (NULL); | |
11703 | frame_gdbarch = get_frame_arch (frame); | |
11704 | stack_frame_id = get_stack_frame_id (frame); | |
11705 | caller_frame_id = frame_unwind_caller_id (frame); | |
883bc8d1 | 11706 | |
ae66c1fc EZ |
11707 | /* Keep within the current frame, or in frames called by the current |
11708 | one. */ | |
edb3359d | 11709 | |
883bc8d1 | 11710 | if (frame_id_p (caller_frame_id)) |
c906108c | 11711 | { |
883bc8d1 PA |
11712 | struct symtab_and_line sal2; |
11713 | ||
11714 | sal2 = find_pc_line (frame_unwind_caller_pc (frame), 0); | |
11715 | sal2.pc = frame_unwind_caller_pc (frame); | |
a6d9a66e | 11716 | breakpoint2 = set_momentary_breakpoint (frame_unwind_caller_arch (frame), |
883bc8d1 PA |
11717 | sal2, |
11718 | caller_frame_id, | |
f107f563 VP |
11719 | bp_until); |
11720 | make_cleanup_delete_breakpoint (breakpoint2); | |
186c406b | 11721 | |
883bc8d1 | 11722 | set_longjmp_breakpoint (tp, caller_frame_id); |
186c406b | 11723 | make_cleanup (delete_longjmp_breakpoint_cleanup, &thread); |
c906108c | 11724 | } |
c5aa993b | 11725 | |
c70a6932 JK |
11726 | /* set_momentary_breakpoint could invalidate FRAME. */ |
11727 | frame = NULL; | |
11728 | ||
883bc8d1 PA |
11729 | if (anywhere) |
11730 | /* If the user told us to continue until a specified location, | |
11731 | we don't specify a frame at which we need to stop. */ | |
11732 | breakpoint = set_momentary_breakpoint (frame_gdbarch, sal, | |
11733 | null_frame_id, bp_until); | |
11734 | else | |
11735 | /* Otherwise, specify the selected frame, because we want to stop | |
11736 | only at the very same frame. */ | |
11737 | breakpoint = set_momentary_breakpoint (frame_gdbarch, sal, | |
11738 | stack_frame_id, bp_until); | |
11739 | make_cleanup_delete_breakpoint (breakpoint); | |
11740 | ||
a493e3e2 | 11741 | proceed (-1, GDB_SIGNAL_DEFAULT, 0); |
f107f563 | 11742 | |
4a64f543 MS |
11743 | /* If we are running asynchronously, and proceed call above has |
11744 | actually managed to start the target, arrange for breakpoints to | |
11745 | be deleted when the target stops. Otherwise, we're already | |
11746 | stopped and delete breakpoints via cleanup chain. */ | |
f107f563 | 11747 | |
8ea051c5 | 11748 | if (target_can_async_p () && is_running (inferior_ptid)) |
f107f563 | 11749 | { |
bfec99b2 PA |
11750 | struct until_break_command_continuation_args *args; |
11751 | args = xmalloc (sizeof (*args)); | |
f107f563 | 11752 | |
bfec99b2 PA |
11753 | args->breakpoint = breakpoint; |
11754 | args->breakpoint2 = breakpoint2; | |
186c406b | 11755 | args->thread_num = thread; |
f107f563 VP |
11756 | |
11757 | discard_cleanups (old_chain); | |
95e54da7 PA |
11758 | add_continuation (inferior_thread (), |
11759 | until_break_command_continuation, args, | |
604ead4a | 11760 | xfree); |
f107f563 VP |
11761 | } |
11762 | else | |
c5aa993b | 11763 | do_cleanups (old_chain); |
c906108c | 11764 | } |
ae66c1fc | 11765 | |
c906108c SS |
11766 | /* This function attempts to parse an optional "if <cond>" clause |
11767 | from the arg string. If one is not found, it returns NULL. | |
c5aa993b | 11768 | |
c906108c SS |
11769 | Else, it returns a pointer to the condition string. (It does not |
11770 | attempt to evaluate the string against a particular block.) And, | |
11771 | it updates arg to point to the first character following the parsed | |
4a64f543 | 11772 | if clause in the arg string. */ |
53a5351d | 11773 | |
916703c0 | 11774 | char * |
fba45db2 | 11775 | ep_parse_optional_if_clause (char **arg) |
c906108c | 11776 | { |
c5aa993b JM |
11777 | char *cond_string; |
11778 | ||
11779 | if (((*arg)[0] != 'i') || ((*arg)[1] != 'f') || !isspace ((*arg)[2])) | |
c906108c | 11780 | return NULL; |
c5aa993b | 11781 | |
4a64f543 | 11782 | /* Skip the "if" keyword. */ |
c906108c | 11783 | (*arg) += 2; |
c5aa993b | 11784 | |
c906108c | 11785 | /* Skip any extra leading whitespace, and record the start of the |
4a64f543 | 11786 | condition string. */ |
e9cafbcc | 11787 | *arg = skip_spaces (*arg); |
c906108c | 11788 | cond_string = *arg; |
c5aa993b | 11789 | |
4a64f543 MS |
11790 | /* Assume that the condition occupies the remainder of the arg |
11791 | string. */ | |
c906108c | 11792 | (*arg) += strlen (cond_string); |
c5aa993b | 11793 | |
c906108c SS |
11794 | return cond_string; |
11795 | } | |
c5aa993b | 11796 | |
c906108c SS |
11797 | /* Commands to deal with catching events, such as signals, exceptions, |
11798 | process start/exit, etc. */ | |
c5aa993b JM |
11799 | |
11800 | typedef enum | |
11801 | { | |
44feb3ce TT |
11802 | catch_fork_temporary, catch_vfork_temporary, |
11803 | catch_fork_permanent, catch_vfork_permanent | |
c5aa993b JM |
11804 | } |
11805 | catch_fork_kind; | |
11806 | ||
c906108c | 11807 | static void |
cc59ec59 MS |
11808 | catch_fork_command_1 (char *arg, int from_tty, |
11809 | struct cmd_list_element *command) | |
c906108c | 11810 | { |
a6d9a66e | 11811 | struct gdbarch *gdbarch = get_current_arch (); |
c5aa993b | 11812 | char *cond_string = NULL; |
44feb3ce TT |
11813 | catch_fork_kind fork_kind; |
11814 | int tempflag; | |
11815 | ||
11816 | fork_kind = (catch_fork_kind) (uintptr_t) get_cmd_context (command); | |
11817 | tempflag = (fork_kind == catch_fork_temporary | |
11818 | || fork_kind == catch_vfork_temporary); | |
c5aa993b | 11819 | |
44feb3ce TT |
11820 | if (!arg) |
11821 | arg = ""; | |
e9cafbcc | 11822 | arg = skip_spaces (arg); |
c5aa993b | 11823 | |
c906108c | 11824 | /* The allowed syntax is: |
c5aa993b JM |
11825 | catch [v]fork |
11826 | catch [v]fork if <cond> | |
11827 | ||
4a64f543 | 11828 | First, check if there's an if clause. */ |
c906108c | 11829 | cond_string = ep_parse_optional_if_clause (&arg); |
c5aa993b | 11830 | |
c906108c | 11831 | if ((*arg != '\0') && !isspace (*arg)) |
8a3fe4f8 | 11832 | error (_("Junk at end of arguments.")); |
c5aa993b | 11833 | |
c906108c | 11834 | /* If this target supports it, create a fork or vfork catchpoint |
4a64f543 | 11835 | and enable reporting of such events. */ |
c5aa993b JM |
11836 | switch (fork_kind) |
11837 | { | |
44feb3ce TT |
11838 | case catch_fork_temporary: |
11839 | case catch_fork_permanent: | |
a6d9a66e | 11840 | create_fork_vfork_event_catchpoint (gdbarch, tempflag, cond_string, |
ce78b96d | 11841 | &catch_fork_breakpoint_ops); |
c906108c | 11842 | break; |
44feb3ce TT |
11843 | case catch_vfork_temporary: |
11844 | case catch_vfork_permanent: | |
a6d9a66e | 11845 | create_fork_vfork_event_catchpoint (gdbarch, tempflag, cond_string, |
ce78b96d | 11846 | &catch_vfork_breakpoint_ops); |
c906108c | 11847 | break; |
c5aa993b | 11848 | default: |
8a3fe4f8 | 11849 | error (_("unsupported or unknown fork kind; cannot catch it")); |
c906108c | 11850 | break; |
c5aa993b | 11851 | } |
c906108c SS |
11852 | } |
11853 | ||
11854 | static void | |
cc59ec59 MS |
11855 | catch_exec_command_1 (char *arg, int from_tty, |
11856 | struct cmd_list_element *command) | |
c906108c | 11857 | { |
b4d90040 | 11858 | struct exec_catchpoint *c; |
a6d9a66e | 11859 | struct gdbarch *gdbarch = get_current_arch (); |
44feb3ce | 11860 | int tempflag; |
c5aa993b | 11861 | char *cond_string = NULL; |
c906108c | 11862 | |
44feb3ce TT |
11863 | tempflag = get_cmd_context (command) == CATCH_TEMPORARY; |
11864 | ||
11865 | if (!arg) | |
11866 | arg = ""; | |
e9cafbcc | 11867 | arg = skip_spaces (arg); |
c906108c SS |
11868 | |
11869 | /* The allowed syntax is: | |
c5aa993b JM |
11870 | catch exec |
11871 | catch exec if <cond> | |
c906108c | 11872 | |
4a64f543 | 11873 | First, check if there's an if clause. */ |
c906108c SS |
11874 | cond_string = ep_parse_optional_if_clause (&arg); |
11875 | ||
11876 | if ((*arg != '\0') && !isspace (*arg)) | |
8a3fe4f8 | 11877 | error (_("Junk at end of arguments.")); |
c906108c | 11878 | |
b4d90040 PA |
11879 | c = XNEW (struct exec_catchpoint); |
11880 | init_catchpoint (&c->base, gdbarch, tempflag, cond_string, | |
11881 | &catch_exec_breakpoint_ops); | |
11882 | c->exec_pathname = NULL; | |
11883 | ||
3ea46bff | 11884 | install_breakpoint (0, &c->base, 1); |
c906108c | 11885 | } |
c5aa993b | 11886 | |
9ac4176b | 11887 | void |
28010a5d PA |
11888 | init_ada_exception_breakpoint (struct breakpoint *b, |
11889 | struct gdbarch *gdbarch, | |
11890 | struct symtab_and_line sal, | |
11891 | char *addr_string, | |
c0a91b2b | 11892 | const struct breakpoint_ops *ops, |
28010a5d | 11893 | int tempflag, |
349774ef | 11894 | int enabled, |
28010a5d | 11895 | int from_tty) |
f7f9143b | 11896 | { |
f7f9143b JB |
11897 | if (from_tty) |
11898 | { | |
5af949e3 UW |
11899 | struct gdbarch *loc_gdbarch = get_sal_arch (sal); |
11900 | if (!loc_gdbarch) | |
11901 | loc_gdbarch = gdbarch; | |
11902 | ||
6c95b8df PA |
11903 | describe_other_breakpoints (loc_gdbarch, |
11904 | sal.pspace, sal.pc, sal.section, -1); | |
f7f9143b JB |
11905 | /* FIXME: brobecker/2006-12-28: Actually, re-implement a special |
11906 | version for exception catchpoints, because two catchpoints | |
11907 | used for different exception names will use the same address. | |
11908 | In this case, a "breakpoint ... also set at..." warning is | |
4a64f543 | 11909 | unproductive. Besides, the warning phrasing is also a bit |
e5dd4106 | 11910 | inappropriate, we should use the word catchpoint, and tell |
f7f9143b JB |
11911 | the user what type of catchpoint it is. The above is good |
11912 | enough for now, though. */ | |
11913 | } | |
11914 | ||
28010a5d | 11915 | init_raw_breakpoint (b, gdbarch, sal, bp_breakpoint, ops); |
f7f9143b | 11916 | |
349774ef | 11917 | b->enable_state = enabled ? bp_enabled : bp_disabled; |
f7f9143b | 11918 | b->disposition = tempflag ? disp_del : disp_donttouch; |
f7f9143b JB |
11919 | b->addr_string = addr_string; |
11920 | b->language = language_ada; | |
f7f9143b JB |
11921 | } |
11922 | ||
a96d9b2e SDJ |
11923 | /* Splits the argument using space as delimiter. Returns an xmalloc'd |
11924 | filter list, or NULL if no filtering is required. */ | |
11925 | static VEC(int) * | |
11926 | catch_syscall_split_args (char *arg) | |
11927 | { | |
11928 | VEC(int) *result = NULL; | |
29d0bb3d | 11929 | struct cleanup *cleanup = make_cleanup (VEC_cleanup (int), &result); |
a96d9b2e SDJ |
11930 | |
11931 | while (*arg != '\0') | |
11932 | { | |
11933 | int i, syscall_number; | |
11934 | char *endptr; | |
11935 | char cur_name[128]; | |
11936 | struct syscall s; | |
11937 | ||
11938 | /* Skip whitespace. */ | |
529480d0 | 11939 | arg = skip_spaces (arg); |
a96d9b2e SDJ |
11940 | |
11941 | for (i = 0; i < 127 && arg[i] && !isspace (arg[i]); ++i) | |
11942 | cur_name[i] = arg[i]; | |
11943 | cur_name[i] = '\0'; | |
11944 | arg += i; | |
11945 | ||
11946 | /* Check if the user provided a syscall name or a number. */ | |
11947 | syscall_number = (int) strtol (cur_name, &endptr, 0); | |
11948 | if (*endptr == '\0') | |
bccd0dd2 | 11949 | get_syscall_by_number (syscall_number, &s); |
a96d9b2e SDJ |
11950 | else |
11951 | { | |
11952 | /* We have a name. Let's check if it's valid and convert it | |
11953 | to a number. */ | |
11954 | get_syscall_by_name (cur_name, &s); | |
11955 | ||
11956 | if (s.number == UNKNOWN_SYSCALL) | |
4a64f543 MS |
11957 | /* Here we have to issue an error instead of a warning, |
11958 | because GDB cannot do anything useful if there's no | |
11959 | syscall number to be caught. */ | |
a96d9b2e SDJ |
11960 | error (_("Unknown syscall name '%s'."), cur_name); |
11961 | } | |
11962 | ||
11963 | /* Ok, it's valid. */ | |
11964 | VEC_safe_push (int, result, s.number); | |
11965 | } | |
11966 | ||
11967 | discard_cleanups (cleanup); | |
11968 | return result; | |
11969 | } | |
11970 | ||
11971 | /* Implement the "catch syscall" command. */ | |
11972 | ||
11973 | static void | |
cc59ec59 MS |
11974 | catch_syscall_command_1 (char *arg, int from_tty, |
11975 | struct cmd_list_element *command) | |
a96d9b2e SDJ |
11976 | { |
11977 | int tempflag; | |
11978 | VEC(int) *filter; | |
11979 | struct syscall s; | |
11980 | struct gdbarch *gdbarch = get_current_arch (); | |
11981 | ||
11982 | /* Checking if the feature if supported. */ | |
11983 | if (gdbarch_get_syscall_number_p (gdbarch) == 0) | |
11984 | error (_("The feature 'catch syscall' is not supported on \ | |
ea666128 | 11985 | this architecture yet.")); |
a96d9b2e SDJ |
11986 | |
11987 | tempflag = get_cmd_context (command) == CATCH_TEMPORARY; | |
11988 | ||
e9cafbcc | 11989 | arg = skip_spaces (arg); |
a96d9b2e SDJ |
11990 | |
11991 | /* We need to do this first "dummy" translation in order | |
11992 | to get the syscall XML file loaded or, most important, | |
11993 | to display a warning to the user if there's no XML file | |
11994 | for his/her architecture. */ | |
11995 | get_syscall_by_number (0, &s); | |
11996 | ||
11997 | /* The allowed syntax is: | |
11998 | catch syscall | |
11999 | catch syscall <name | number> [<name | number> ... <name | number>] | |
12000 | ||
12001 | Let's check if there's a syscall name. */ | |
12002 | ||
12003 | if (arg != NULL) | |
12004 | filter = catch_syscall_split_args (arg); | |
12005 | else | |
12006 | filter = NULL; | |
12007 | ||
12008 | create_syscall_event_catchpoint (tempflag, filter, | |
12009 | &catch_syscall_breakpoint_ops); | |
12010 | } | |
12011 | ||
c906108c | 12012 | static void |
fba45db2 | 12013 | catch_command (char *arg, int from_tty) |
c906108c | 12014 | { |
44feb3ce | 12015 | error (_("Catch requires an event name.")); |
c906108c SS |
12016 | } |
12017 | \f | |
12018 | ||
12019 | static void | |
fba45db2 | 12020 | tcatch_command (char *arg, int from_tty) |
c906108c | 12021 | { |
44feb3ce | 12022 | error (_("Catch requires an event name.")); |
c906108c SS |
12023 | } |
12024 | ||
8a2c437b TT |
12025 | /* A qsort comparison function that sorts breakpoints in order. */ |
12026 | ||
12027 | static int | |
12028 | compare_breakpoints (const void *a, const void *b) | |
12029 | { | |
12030 | const breakpoint_p *ba = a; | |
12031 | uintptr_t ua = (uintptr_t) *ba; | |
12032 | const breakpoint_p *bb = b; | |
12033 | uintptr_t ub = (uintptr_t) *bb; | |
12034 | ||
12035 | if ((*ba)->number < (*bb)->number) | |
12036 | return -1; | |
12037 | else if ((*ba)->number > (*bb)->number) | |
12038 | return 1; | |
12039 | ||
12040 | /* Now sort by address, in case we see, e..g, two breakpoints with | |
12041 | the number 0. */ | |
12042 | if (ua < ub) | |
12043 | return -1; | |
94b0e70d | 12044 | return ua > ub ? 1 : 0; |
8a2c437b TT |
12045 | } |
12046 | ||
80f8a6eb | 12047 | /* Delete breakpoints by address or line. */ |
c906108c SS |
12048 | |
12049 | static void | |
fba45db2 | 12050 | clear_command (char *arg, int from_tty) |
c906108c | 12051 | { |
8a2c437b | 12052 | struct breakpoint *b, *prev; |
d6e956e5 VP |
12053 | VEC(breakpoint_p) *found = 0; |
12054 | int ix; | |
c906108c SS |
12055 | int default_match; |
12056 | struct symtabs_and_lines sals; | |
12057 | struct symtab_and_line sal; | |
c906108c | 12058 | int i; |
8a2c437b | 12059 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
c906108c SS |
12060 | |
12061 | if (arg) | |
12062 | { | |
39cf75f7 DE |
12063 | sals = decode_line_with_current_source (arg, |
12064 | (DECODE_LINE_FUNFIRSTLINE | |
12065 | | DECODE_LINE_LIST_MODE)); | |
cf4ded82 | 12066 | make_cleanup (xfree, sals.sals); |
c906108c SS |
12067 | default_match = 0; |
12068 | } | |
12069 | else | |
12070 | { | |
c5aa993b | 12071 | sals.sals = (struct symtab_and_line *) |
c906108c | 12072 | xmalloc (sizeof (struct symtab_and_line)); |
80f8a6eb | 12073 | make_cleanup (xfree, sals.sals); |
4a64f543 | 12074 | init_sal (&sal); /* Initialize to zeroes. */ |
1bfeeb0f JL |
12075 | |
12076 | /* Set sal's line, symtab, pc, and pspace to the values | |
12077 | corresponding to the last call to print_frame_info. If the | |
12078 | codepoint is not valid, this will set all the fields to 0. */ | |
12079 | get_last_displayed_sal (&sal); | |
c906108c | 12080 | if (sal.symtab == 0) |
8a3fe4f8 | 12081 | error (_("No source file specified.")); |
c906108c SS |
12082 | |
12083 | sals.sals[0] = sal; | |
12084 | sals.nelts = 1; | |
12085 | ||
12086 | default_match = 1; | |
12087 | } | |
12088 | ||
4a64f543 MS |
12089 | /* We don't call resolve_sal_pc here. That's not as bad as it |
12090 | seems, because all existing breakpoints typically have both | |
12091 | file/line and pc set. So, if clear is given file/line, we can | |
12092 | match this to existing breakpoint without obtaining pc at all. | |
ed0616c6 VP |
12093 | |
12094 | We only support clearing given the address explicitly | |
12095 | present in breakpoint table. Say, we've set breakpoint | |
4a64f543 | 12096 | at file:line. There were several PC values for that file:line, |
ed0616c6 | 12097 | due to optimization, all in one block. |
4a64f543 MS |
12098 | |
12099 | We've picked one PC value. If "clear" is issued with another | |
ed0616c6 VP |
12100 | PC corresponding to the same file:line, the breakpoint won't |
12101 | be cleared. We probably can still clear the breakpoint, but | |
12102 | since the other PC value is never presented to user, user | |
12103 | can only find it by guessing, and it does not seem important | |
12104 | to support that. */ | |
12105 | ||
4a64f543 MS |
12106 | /* For each line spec given, delete bps which correspond to it. Do |
12107 | it in two passes, solely to preserve the current behavior that | |
12108 | from_tty is forced true if we delete more than one | |
12109 | breakpoint. */ | |
c906108c | 12110 | |
80f8a6eb | 12111 | found = NULL; |
8a2c437b | 12112 | make_cleanup (VEC_cleanup (breakpoint_p), &found); |
c906108c SS |
12113 | for (i = 0; i < sals.nelts; i++) |
12114 | { | |
05cba821 JK |
12115 | const char *sal_fullname; |
12116 | ||
c906108c | 12117 | /* If exact pc given, clear bpts at that pc. |
c5aa993b JM |
12118 | If line given (pc == 0), clear all bpts on specified line. |
12119 | If defaulting, clear all bpts on default line | |
c906108c | 12120 | or at default pc. |
c5aa993b JM |
12121 | |
12122 | defaulting sal.pc != 0 tests to do | |
12123 | ||
12124 | 0 1 pc | |
12125 | 1 1 pc _and_ line | |
12126 | 0 0 line | |
12127 | 1 0 <can't happen> */ | |
c906108c SS |
12128 | |
12129 | sal = sals.sals[i]; | |
05cba821 JK |
12130 | sal_fullname = (sal.symtab == NULL |
12131 | ? NULL : symtab_to_fullname (sal.symtab)); | |
c906108c | 12132 | |
4a64f543 | 12133 | /* Find all matching breakpoints and add them to 'found'. */ |
d6e956e5 | 12134 | ALL_BREAKPOINTS (b) |
c5aa993b | 12135 | { |
0d381245 | 12136 | int match = 0; |
4a64f543 | 12137 | /* Are we going to delete b? */ |
cc60f2e3 | 12138 | if (b->type != bp_none && !is_watchpoint (b)) |
0d381245 VP |
12139 | { |
12140 | struct bp_location *loc = b->loc; | |
12141 | for (; loc; loc = loc->next) | |
12142 | { | |
f8eba3c6 TT |
12143 | /* If the user specified file:line, don't allow a PC |
12144 | match. This matches historical gdb behavior. */ | |
12145 | int pc_match = (!sal.explicit_line | |
12146 | && sal.pc | |
12147 | && (loc->pspace == sal.pspace) | |
12148 | && (loc->address == sal.pc) | |
12149 | && (!section_is_overlay (loc->section) | |
12150 | || loc->section == sal.section)); | |
4aac40c8 TT |
12151 | int line_match = 0; |
12152 | ||
12153 | if ((default_match || sal.explicit_line) | |
2f202fde | 12154 | && loc->symtab != NULL |
05cba821 | 12155 | && sal_fullname != NULL |
4aac40c8 | 12156 | && sal.pspace == loc->pspace |
05cba821 JK |
12157 | && loc->line_number == sal.line |
12158 | && filename_cmp (symtab_to_fullname (loc->symtab), | |
12159 | sal_fullname) == 0) | |
12160 | line_match = 1; | |
4aac40c8 | 12161 | |
0d381245 VP |
12162 | if (pc_match || line_match) |
12163 | { | |
12164 | match = 1; | |
12165 | break; | |
12166 | } | |
12167 | } | |
12168 | } | |
12169 | ||
12170 | if (match) | |
d6e956e5 | 12171 | VEC_safe_push(breakpoint_p, found, b); |
c906108c | 12172 | } |
80f8a6eb | 12173 | } |
8a2c437b | 12174 | |
80f8a6eb | 12175 | /* Now go thru the 'found' chain and delete them. */ |
d6e956e5 | 12176 | if (VEC_empty(breakpoint_p, found)) |
80f8a6eb MS |
12177 | { |
12178 | if (arg) | |
8a3fe4f8 | 12179 | error (_("No breakpoint at %s."), arg); |
80f8a6eb | 12180 | else |
8a3fe4f8 | 12181 | error (_("No breakpoint at this line.")); |
80f8a6eb | 12182 | } |
c906108c | 12183 | |
8a2c437b TT |
12184 | /* Remove duplicates from the vec. */ |
12185 | qsort (VEC_address (breakpoint_p, found), | |
12186 | VEC_length (breakpoint_p, found), | |
12187 | sizeof (breakpoint_p), | |
12188 | compare_breakpoints); | |
12189 | prev = VEC_index (breakpoint_p, found, 0); | |
12190 | for (ix = 1; VEC_iterate (breakpoint_p, found, ix, b); ++ix) | |
12191 | { | |
12192 | if (b == prev) | |
12193 | { | |
12194 | VEC_ordered_remove (breakpoint_p, found, ix); | |
12195 | --ix; | |
12196 | } | |
12197 | } | |
12198 | ||
d6e956e5 | 12199 | if (VEC_length(breakpoint_p, found) > 1) |
4a64f543 | 12200 | from_tty = 1; /* Always report if deleted more than one. */ |
80f8a6eb | 12201 | if (from_tty) |
a3f17187 | 12202 | { |
d6e956e5 | 12203 | if (VEC_length(breakpoint_p, found) == 1) |
a3f17187 AC |
12204 | printf_unfiltered (_("Deleted breakpoint ")); |
12205 | else | |
12206 | printf_unfiltered (_("Deleted breakpoints ")); | |
12207 | } | |
d6e956e5 VP |
12208 | |
12209 | for (ix = 0; VEC_iterate(breakpoint_p, found, ix, b); ix++) | |
80f8a6eb | 12210 | { |
c5aa993b | 12211 | if (from_tty) |
d6e956e5 VP |
12212 | printf_unfiltered ("%d ", b->number); |
12213 | delete_breakpoint (b); | |
c906108c | 12214 | } |
80f8a6eb MS |
12215 | if (from_tty) |
12216 | putchar_unfiltered ('\n'); | |
8a2c437b TT |
12217 | |
12218 | do_cleanups (cleanups); | |
c906108c SS |
12219 | } |
12220 | \f | |
12221 | /* Delete breakpoint in BS if they are `delete' breakpoints and | |
12222 | all breakpoints that are marked for deletion, whether hit or not. | |
12223 | This is called after any breakpoint is hit, or after errors. */ | |
12224 | ||
12225 | void | |
fba45db2 | 12226 | breakpoint_auto_delete (bpstat bs) |
c906108c | 12227 | { |
35df4500 | 12228 | struct breakpoint *b, *b_tmp; |
c906108c SS |
12229 | |
12230 | for (; bs; bs = bs->next) | |
f431efe5 PA |
12231 | if (bs->breakpoint_at |
12232 | && bs->breakpoint_at->disposition == disp_del | |
c906108c | 12233 | && bs->stop) |
f431efe5 | 12234 | delete_breakpoint (bs->breakpoint_at); |
c906108c | 12235 | |
35df4500 | 12236 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
c5aa993b | 12237 | { |
b5de0fa7 | 12238 | if (b->disposition == disp_del_at_next_stop) |
c5aa993b JM |
12239 | delete_breakpoint (b); |
12240 | } | |
c906108c SS |
12241 | } |
12242 | ||
4a64f543 MS |
12243 | /* A comparison function for bp_location AP and BP being interfaced to |
12244 | qsort. Sort elements primarily by their ADDRESS (no matter what | |
12245 | does breakpoint_address_is_meaningful say for its OWNER), | |
12246 | secondarily by ordering first bp_permanent OWNERed elements and | |
12247 | terciarily just ensuring the array is sorted stable way despite | |
e5dd4106 | 12248 | qsort being an unstable algorithm. */ |
876fa593 JK |
12249 | |
12250 | static int | |
494cfb0f | 12251 | bp_location_compare (const void *ap, const void *bp) |
876fa593 | 12252 | { |
494cfb0f JK |
12253 | struct bp_location *a = *(void **) ap; |
12254 | struct bp_location *b = *(void **) bp; | |
2bdf28a0 | 12255 | /* A and B come from existing breakpoints having non-NULL OWNER. */ |
876fa593 JK |
12256 | int a_perm = a->owner->enable_state == bp_permanent; |
12257 | int b_perm = b->owner->enable_state == bp_permanent; | |
12258 | ||
12259 | if (a->address != b->address) | |
12260 | return (a->address > b->address) - (a->address < b->address); | |
12261 | ||
dea2aa5f LM |
12262 | /* Sort locations at the same address by their pspace number, keeping |
12263 | locations of the same inferior (in a multi-inferior environment) | |
12264 | grouped. */ | |
12265 | ||
12266 | if (a->pspace->num != b->pspace->num) | |
12267 | return ((a->pspace->num > b->pspace->num) | |
12268 | - (a->pspace->num < b->pspace->num)); | |
12269 | ||
876fa593 JK |
12270 | /* Sort permanent breakpoints first. */ |
12271 | if (a_perm != b_perm) | |
12272 | return (a_perm < b_perm) - (a_perm > b_perm); | |
12273 | ||
c56a97f9 JK |
12274 | /* Make the internal GDB representation stable across GDB runs |
12275 | where A and B memory inside GDB can differ. Breakpoint locations of | |
12276 | the same type at the same address can be sorted in arbitrary order. */ | |
876fa593 JK |
12277 | |
12278 | if (a->owner->number != b->owner->number) | |
c56a97f9 JK |
12279 | return ((a->owner->number > b->owner->number) |
12280 | - (a->owner->number < b->owner->number)); | |
876fa593 JK |
12281 | |
12282 | return (a > b) - (a < b); | |
12283 | } | |
12284 | ||
876fa593 | 12285 | /* Set bp_location_placed_address_before_address_max and |
4a64f543 MS |
12286 | bp_location_shadow_len_after_address_max according to the current |
12287 | content of the bp_location array. */ | |
f7545552 TT |
12288 | |
12289 | static void | |
876fa593 | 12290 | bp_location_target_extensions_update (void) |
f7545552 | 12291 | { |
876fa593 JK |
12292 | struct bp_location *bl, **blp_tmp; |
12293 | ||
12294 | bp_location_placed_address_before_address_max = 0; | |
12295 | bp_location_shadow_len_after_address_max = 0; | |
12296 | ||
12297 | ALL_BP_LOCATIONS (bl, blp_tmp) | |
12298 | { | |
12299 | CORE_ADDR start, end, addr; | |
12300 | ||
12301 | if (!bp_location_has_shadow (bl)) | |
12302 | continue; | |
12303 | ||
12304 | start = bl->target_info.placed_address; | |
12305 | end = start + bl->target_info.shadow_len; | |
12306 | ||
12307 | gdb_assert (bl->address >= start); | |
12308 | addr = bl->address - start; | |
12309 | if (addr > bp_location_placed_address_before_address_max) | |
12310 | bp_location_placed_address_before_address_max = addr; | |
12311 | ||
12312 | /* Zero SHADOW_LEN would not pass bp_location_has_shadow. */ | |
12313 | ||
12314 | gdb_assert (bl->address < end); | |
12315 | addr = end - bl->address; | |
12316 | if (addr > bp_location_shadow_len_after_address_max) | |
12317 | bp_location_shadow_len_after_address_max = addr; | |
12318 | } | |
f7545552 TT |
12319 | } |
12320 | ||
1e4d1764 YQ |
12321 | /* Download tracepoint locations if they haven't been. */ |
12322 | ||
12323 | static void | |
12324 | download_tracepoint_locations (void) | |
12325 | { | |
7ed2c994 | 12326 | struct breakpoint *b; |
1e4d1764 YQ |
12327 | struct cleanup *old_chain; |
12328 | ||
12329 | if (!target_can_download_tracepoint ()) | |
12330 | return; | |
12331 | ||
12332 | old_chain = save_current_space_and_thread (); | |
12333 | ||
7ed2c994 | 12334 | ALL_TRACEPOINTS (b) |
1e4d1764 | 12335 | { |
7ed2c994 | 12336 | struct bp_location *bl; |
1e4d1764 | 12337 | struct tracepoint *t; |
f2a8bc8a | 12338 | int bp_location_downloaded = 0; |
1e4d1764 | 12339 | |
7ed2c994 | 12340 | if ((b->type == bp_fast_tracepoint |
1e4d1764 YQ |
12341 | ? !may_insert_fast_tracepoints |
12342 | : !may_insert_tracepoints)) | |
12343 | continue; | |
12344 | ||
7ed2c994 YQ |
12345 | for (bl = b->loc; bl; bl = bl->next) |
12346 | { | |
12347 | /* In tracepoint, locations are _never_ duplicated, so | |
12348 | should_be_inserted is equivalent to | |
12349 | unduplicated_should_be_inserted. */ | |
12350 | if (!should_be_inserted (bl) || bl->inserted) | |
12351 | continue; | |
1e4d1764 | 12352 | |
7ed2c994 | 12353 | switch_to_program_space_and_thread (bl->pspace); |
1e4d1764 | 12354 | |
7ed2c994 | 12355 | target_download_tracepoint (bl); |
1e4d1764 | 12356 | |
7ed2c994 | 12357 | bl->inserted = 1; |
f2a8bc8a | 12358 | bp_location_downloaded = 1; |
7ed2c994 YQ |
12359 | } |
12360 | t = (struct tracepoint *) b; | |
12361 | t->number_on_target = b->number; | |
f2a8bc8a YQ |
12362 | if (bp_location_downloaded) |
12363 | observer_notify_breakpoint_modified (b); | |
1e4d1764 YQ |
12364 | } |
12365 | ||
12366 | do_cleanups (old_chain); | |
12367 | } | |
12368 | ||
934709f0 PW |
12369 | /* Swap the insertion/duplication state between two locations. */ |
12370 | ||
12371 | static void | |
12372 | swap_insertion (struct bp_location *left, struct bp_location *right) | |
12373 | { | |
12374 | const int left_inserted = left->inserted; | |
12375 | const int left_duplicate = left->duplicate; | |
b775012e | 12376 | const int left_needs_update = left->needs_update; |
934709f0 PW |
12377 | const struct bp_target_info left_target_info = left->target_info; |
12378 | ||
1e4d1764 YQ |
12379 | /* Locations of tracepoints can never be duplicated. */ |
12380 | if (is_tracepoint (left->owner)) | |
12381 | gdb_assert (!left->duplicate); | |
12382 | if (is_tracepoint (right->owner)) | |
12383 | gdb_assert (!right->duplicate); | |
12384 | ||
934709f0 PW |
12385 | left->inserted = right->inserted; |
12386 | left->duplicate = right->duplicate; | |
b775012e | 12387 | left->needs_update = right->needs_update; |
934709f0 PW |
12388 | left->target_info = right->target_info; |
12389 | right->inserted = left_inserted; | |
12390 | right->duplicate = left_duplicate; | |
b775012e | 12391 | right->needs_update = left_needs_update; |
934709f0 PW |
12392 | right->target_info = left_target_info; |
12393 | } | |
12394 | ||
b775012e LM |
12395 | /* Force the re-insertion of the locations at ADDRESS. This is called |
12396 | once a new/deleted/modified duplicate location is found and we are evaluating | |
12397 | conditions on the target's side. Such conditions need to be updated on | |
12398 | the target. */ | |
12399 | ||
12400 | static void | |
12401 | force_breakpoint_reinsertion (struct bp_location *bl) | |
12402 | { | |
12403 | struct bp_location **locp = NULL, **loc2p; | |
12404 | struct bp_location *loc; | |
12405 | CORE_ADDR address = 0; | |
12406 | int pspace_num; | |
12407 | ||
12408 | address = bl->address; | |
12409 | pspace_num = bl->pspace->num; | |
12410 | ||
12411 | /* This is only meaningful if the target is | |
12412 | evaluating conditions and if the user has | |
12413 | opted for condition evaluation on the target's | |
12414 | side. */ | |
12415 | if (gdb_evaluates_breakpoint_condition_p () | |
12416 | || !target_supports_evaluation_of_breakpoint_conditions ()) | |
12417 | return; | |
12418 | ||
12419 | /* Flag all breakpoint locations with this address and | |
12420 | the same program space as the location | |
12421 | as "its condition has changed". We need to | |
12422 | update the conditions on the target's side. */ | |
12423 | ALL_BP_LOCATIONS_AT_ADDR (loc2p, locp, address) | |
12424 | { | |
12425 | loc = *loc2p; | |
12426 | ||
12427 | if (!is_breakpoint (loc->owner) | |
12428 | || pspace_num != loc->pspace->num) | |
12429 | continue; | |
12430 | ||
12431 | /* Flag the location appropriately. We use a different state to | |
12432 | let everyone know that we already updated the set of locations | |
12433 | with addr bl->address and program space bl->pspace. This is so | |
12434 | we don't have to keep calling these functions just to mark locations | |
12435 | that have already been marked. */ | |
12436 | loc->condition_changed = condition_updated; | |
12437 | ||
12438 | /* Free the agent expression bytecode as well. We will compute | |
12439 | it later on. */ | |
12440 | if (loc->cond_bytecode) | |
12441 | { | |
12442 | free_agent_expr (loc->cond_bytecode); | |
12443 | loc->cond_bytecode = NULL; | |
12444 | } | |
12445 | } | |
12446 | } | |
12447 | ||
4cd9bd08 | 12448 | /* If SHOULD_INSERT is false, do not insert any breakpoint locations |
b60e7edf PA |
12449 | into the inferior, only remove already-inserted locations that no |
12450 | longer should be inserted. Functions that delete a breakpoint or | |
12451 | breakpoints should pass false, so that deleting a breakpoint | |
12452 | doesn't have the side effect of inserting the locations of other | |
12453 | breakpoints that are marked not-inserted, but should_be_inserted | |
12454 | returns true on them. | |
12455 | ||
12456 | This behaviour is useful is situations close to tear-down -- e.g., | |
12457 | after an exec, while the target still has execution, but breakpoint | |
12458 | shadows of the previous executable image should *NOT* be restored | |
12459 | to the new image; or before detaching, where the target still has | |
12460 | execution and wants to delete breakpoints from GDB's lists, and all | |
12461 | breakpoints had already been removed from the inferior. */ | |
12462 | ||
0d381245 | 12463 | static void |
b60e7edf | 12464 | update_global_location_list (int should_insert) |
0d381245 | 12465 | { |
74960c60 | 12466 | struct breakpoint *b; |
876fa593 | 12467 | struct bp_location **locp, *loc; |
f7545552 | 12468 | struct cleanup *cleanups; |
b775012e LM |
12469 | /* Last breakpoint location address that was marked for update. */ |
12470 | CORE_ADDR last_addr = 0; | |
12471 | /* Last breakpoint location program space that was marked for update. */ | |
12472 | int last_pspace_num = -1; | |
f7545552 | 12473 | |
2d134ed3 PA |
12474 | /* Used in the duplicates detection below. When iterating over all |
12475 | bp_locations, points to the first bp_location of a given address. | |
12476 | Breakpoints and watchpoints of different types are never | |
12477 | duplicates of each other. Keep one pointer for each type of | |
12478 | breakpoint/watchpoint, so we only need to loop over all locations | |
12479 | once. */ | |
12480 | struct bp_location *bp_loc_first; /* breakpoint */ | |
12481 | struct bp_location *wp_loc_first; /* hardware watchpoint */ | |
12482 | struct bp_location *awp_loc_first; /* access watchpoint */ | |
12483 | struct bp_location *rwp_loc_first; /* read watchpoint */ | |
876fa593 | 12484 | |
4a64f543 MS |
12485 | /* Saved former bp_location array which we compare against the newly |
12486 | built bp_location from the current state of ALL_BREAKPOINTS. */ | |
876fa593 JK |
12487 | struct bp_location **old_location, **old_locp; |
12488 | unsigned old_location_count; | |
12489 | ||
12490 | old_location = bp_location; | |
12491 | old_location_count = bp_location_count; | |
12492 | bp_location = NULL; | |
12493 | bp_location_count = 0; | |
12494 | cleanups = make_cleanup (xfree, old_location); | |
0d381245 | 12495 | |
74960c60 | 12496 | ALL_BREAKPOINTS (b) |
876fa593 JK |
12497 | for (loc = b->loc; loc; loc = loc->next) |
12498 | bp_location_count++; | |
12499 | ||
12500 | bp_location = xmalloc (sizeof (*bp_location) * bp_location_count); | |
12501 | locp = bp_location; | |
12502 | ALL_BREAKPOINTS (b) | |
12503 | for (loc = b->loc; loc; loc = loc->next) | |
12504 | *locp++ = loc; | |
12505 | qsort (bp_location, bp_location_count, sizeof (*bp_location), | |
494cfb0f | 12506 | bp_location_compare); |
876fa593 JK |
12507 | |
12508 | bp_location_target_extensions_update (); | |
74960c60 | 12509 | |
4a64f543 MS |
12510 | /* Identify bp_location instances that are no longer present in the |
12511 | new list, and therefore should be freed. Note that it's not | |
12512 | necessary that those locations should be removed from inferior -- | |
12513 | if there's another location at the same address (previously | |
12514 | marked as duplicate), we don't need to remove/insert the | |
12515 | location. | |
876fa593 | 12516 | |
4a64f543 MS |
12517 | LOCP is kept in sync with OLD_LOCP, each pointing to the current |
12518 | and former bp_location array state respectively. */ | |
876fa593 JK |
12519 | |
12520 | locp = bp_location; | |
12521 | for (old_locp = old_location; old_locp < old_location + old_location_count; | |
12522 | old_locp++) | |
74960c60 | 12523 | { |
876fa593 | 12524 | struct bp_location *old_loc = *old_locp; |
c7d46a38 | 12525 | struct bp_location **loc2p; |
876fa593 | 12526 | |
e5dd4106 | 12527 | /* Tells if 'old_loc' is found among the new locations. If |
4a64f543 | 12528 | not, we have to free it. */ |
c7d46a38 | 12529 | int found_object = 0; |
20874c92 VP |
12530 | /* Tells if the location should remain inserted in the target. */ |
12531 | int keep_in_target = 0; | |
12532 | int removed = 0; | |
876fa593 | 12533 | |
4a64f543 MS |
12534 | /* Skip LOCP entries which will definitely never be needed. |
12535 | Stop either at or being the one matching OLD_LOC. */ | |
876fa593 | 12536 | while (locp < bp_location + bp_location_count |
c7d46a38 | 12537 | && (*locp)->address < old_loc->address) |
876fa593 | 12538 | locp++; |
c7d46a38 PA |
12539 | |
12540 | for (loc2p = locp; | |
12541 | (loc2p < bp_location + bp_location_count | |
12542 | && (*loc2p)->address == old_loc->address); | |
12543 | loc2p++) | |
12544 | { | |
b775012e LM |
12545 | /* Check if this is a new/duplicated location or a duplicated |
12546 | location that had its condition modified. If so, we want to send | |
12547 | its condition to the target if evaluation of conditions is taking | |
12548 | place there. */ | |
12549 | if ((*loc2p)->condition_changed == condition_modified | |
12550 | && (last_addr != old_loc->address | |
12551 | || last_pspace_num != old_loc->pspace->num)) | |
c7d46a38 | 12552 | { |
b775012e LM |
12553 | force_breakpoint_reinsertion (*loc2p); |
12554 | last_pspace_num = old_loc->pspace->num; | |
c7d46a38 | 12555 | } |
b775012e LM |
12556 | |
12557 | if (*loc2p == old_loc) | |
12558 | found_object = 1; | |
c7d46a38 | 12559 | } |
74960c60 | 12560 | |
b775012e LM |
12561 | /* We have already handled this address, update it so that we don't |
12562 | have to go through updates again. */ | |
12563 | last_addr = old_loc->address; | |
12564 | ||
12565 | /* Target-side condition evaluation: Handle deleted locations. */ | |
12566 | if (!found_object) | |
12567 | force_breakpoint_reinsertion (old_loc); | |
12568 | ||
4a64f543 MS |
12569 | /* If this location is no longer present, and inserted, look if |
12570 | there's maybe a new location at the same address. If so, | |
12571 | mark that one inserted, and don't remove this one. This is | |
12572 | needed so that we don't have a time window where a breakpoint | |
12573 | at certain location is not inserted. */ | |
74960c60 | 12574 | |
876fa593 | 12575 | if (old_loc->inserted) |
0d381245 | 12576 | { |
4a64f543 MS |
12577 | /* If the location is inserted now, we might have to remove |
12578 | it. */ | |
74960c60 | 12579 | |
876fa593 | 12580 | if (found_object && should_be_inserted (old_loc)) |
74960c60 | 12581 | { |
4a64f543 MS |
12582 | /* The location is still present in the location list, |
12583 | and still should be inserted. Don't do anything. */ | |
20874c92 | 12584 | keep_in_target = 1; |
74960c60 VP |
12585 | } |
12586 | else | |
12587 | { | |
b775012e LM |
12588 | /* This location still exists, but it won't be kept in the |
12589 | target since it may have been disabled. We proceed to | |
12590 | remove its target-side condition. */ | |
12591 | ||
4a64f543 MS |
12592 | /* The location is either no longer present, or got |
12593 | disabled. See if there's another location at the | |
12594 | same address, in which case we don't need to remove | |
12595 | this one from the target. */ | |
876fa593 | 12596 | |
2bdf28a0 | 12597 | /* OLD_LOC comes from existing struct breakpoint. */ |
876fa593 JK |
12598 | if (breakpoint_address_is_meaningful (old_loc->owner)) |
12599 | { | |
876fa593 | 12600 | for (loc2p = locp; |
c7d46a38 PA |
12601 | (loc2p < bp_location + bp_location_count |
12602 | && (*loc2p)->address == old_loc->address); | |
876fa593 JK |
12603 | loc2p++) |
12604 | { | |
12605 | struct bp_location *loc2 = *loc2p; | |
12606 | ||
2d134ed3 | 12607 | if (breakpoint_locations_match (loc2, old_loc)) |
c7d46a38 | 12608 | { |
85d721b8 PA |
12609 | /* Read watchpoint locations are switched to |
12610 | access watchpoints, if the former are not | |
12611 | supported, but the latter are. */ | |
12612 | if (is_hardware_watchpoint (old_loc->owner)) | |
12613 | { | |
12614 | gdb_assert (is_hardware_watchpoint (loc2->owner)); | |
12615 | loc2->watchpoint_type = old_loc->watchpoint_type; | |
12616 | } | |
12617 | ||
934709f0 PW |
12618 | /* loc2 is a duplicated location. We need to check |
12619 | if it should be inserted in case it will be | |
12620 | unduplicated. */ | |
12621 | if (loc2 != old_loc | |
12622 | && unduplicated_should_be_inserted (loc2)) | |
c7d46a38 | 12623 | { |
934709f0 | 12624 | swap_insertion (old_loc, loc2); |
c7d46a38 PA |
12625 | keep_in_target = 1; |
12626 | break; | |
12627 | } | |
876fa593 JK |
12628 | } |
12629 | } | |
12630 | } | |
74960c60 VP |
12631 | } |
12632 | ||
20874c92 VP |
12633 | if (!keep_in_target) |
12634 | { | |
876fa593 | 12635 | if (remove_breakpoint (old_loc, mark_uninserted)) |
20874c92 | 12636 | { |
4a64f543 MS |
12637 | /* This is just about all we can do. We could keep |
12638 | this location on the global list, and try to | |
12639 | remove it next time, but there's no particular | |
12640 | reason why we will succeed next time. | |
20874c92 | 12641 | |
4a64f543 MS |
12642 | Note that at this point, old_loc->owner is still |
12643 | valid, as delete_breakpoint frees the breakpoint | |
12644 | only after calling us. */ | |
3e43a32a MS |
12645 | printf_filtered (_("warning: Error removing " |
12646 | "breakpoint %d\n"), | |
876fa593 | 12647 | old_loc->owner->number); |
20874c92 VP |
12648 | } |
12649 | removed = 1; | |
12650 | } | |
0d381245 | 12651 | } |
74960c60 VP |
12652 | |
12653 | if (!found_object) | |
1c5cfe86 | 12654 | { |
db82e815 PA |
12655 | if (removed && non_stop |
12656 | && breakpoint_address_is_meaningful (old_loc->owner) | |
12657 | && !is_hardware_watchpoint (old_loc->owner)) | |
20874c92 | 12658 | { |
db82e815 PA |
12659 | /* This location was removed from the target. In |
12660 | non-stop mode, a race condition is possible where | |
12661 | we've removed a breakpoint, but stop events for that | |
12662 | breakpoint are already queued and will arrive later. | |
12663 | We apply an heuristic to be able to distinguish such | |
12664 | SIGTRAPs from other random SIGTRAPs: we keep this | |
12665 | breakpoint location for a bit, and will retire it | |
12666 | after we see some number of events. The theory here | |
12667 | is that reporting of events should, "on the average", | |
12668 | be fair, so after a while we'll see events from all | |
12669 | threads that have anything of interest, and no longer | |
12670 | need to keep this breakpoint location around. We | |
12671 | don't hold locations forever so to reduce chances of | |
12672 | mistaking a non-breakpoint SIGTRAP for a breakpoint | |
12673 | SIGTRAP. | |
12674 | ||
12675 | The heuristic failing can be disastrous on | |
12676 | decr_pc_after_break targets. | |
12677 | ||
12678 | On decr_pc_after_break targets, like e.g., x86-linux, | |
12679 | if we fail to recognize a late breakpoint SIGTRAP, | |
12680 | because events_till_retirement has reached 0 too | |
12681 | soon, we'll fail to do the PC adjustment, and report | |
12682 | a random SIGTRAP to the user. When the user resumes | |
12683 | the inferior, it will most likely immediately crash | |
2dec564e | 12684 | with SIGILL/SIGBUS/SIGSEGV, or worse, get silently |
db82e815 PA |
12685 | corrupted, because of being resumed e.g., in the |
12686 | middle of a multi-byte instruction, or skipped a | |
12687 | one-byte instruction. This was actually seen happen | |
12688 | on native x86-linux, and should be less rare on | |
12689 | targets that do not support new thread events, like | |
12690 | remote, due to the heuristic depending on | |
12691 | thread_count. | |
12692 | ||
12693 | Mistaking a random SIGTRAP for a breakpoint trap | |
12694 | causes similar symptoms (PC adjustment applied when | |
12695 | it shouldn't), but then again, playing with SIGTRAPs | |
12696 | behind the debugger's back is asking for trouble. | |
12697 | ||
12698 | Since hardware watchpoint traps are always | |
12699 | distinguishable from other traps, so we don't need to | |
12700 | apply keep hardware watchpoint moribund locations | |
12701 | around. We simply always ignore hardware watchpoint | |
12702 | traps we can no longer explain. */ | |
12703 | ||
876fa593 JK |
12704 | old_loc->events_till_retirement = 3 * (thread_count () + 1); |
12705 | old_loc->owner = NULL; | |
20874c92 | 12706 | |
876fa593 | 12707 | VEC_safe_push (bp_location_p, moribund_locations, old_loc); |
1c5cfe86 PA |
12708 | } |
12709 | else | |
f431efe5 PA |
12710 | { |
12711 | old_loc->owner = NULL; | |
12712 | decref_bp_location (&old_loc); | |
12713 | } | |
20874c92 | 12714 | } |
74960c60 | 12715 | } |
1c5cfe86 | 12716 | |
348d480f PA |
12717 | /* Rescan breakpoints at the same address and section, marking the |
12718 | first one as "first" and any others as "duplicates". This is so | |
12719 | that the bpt instruction is only inserted once. If we have a | |
12720 | permanent breakpoint at the same place as BPT, make that one the | |
12721 | official one, and the rest as duplicates. Permanent breakpoints | |
12722 | are sorted first for the same address. | |
12723 | ||
12724 | Do the same for hardware watchpoints, but also considering the | |
12725 | watchpoint's type (regular/access/read) and length. */ | |
12726 | ||
12727 | bp_loc_first = NULL; | |
12728 | wp_loc_first = NULL; | |
12729 | awp_loc_first = NULL; | |
12730 | rwp_loc_first = NULL; | |
12731 | ALL_BP_LOCATIONS (loc, locp) | |
12732 | { | |
12733 | /* ALL_BP_LOCATIONS bp_location has LOC->OWNER always | |
12734 | non-NULL. */ | |
348d480f | 12735 | struct bp_location **loc_first_p; |
d3fbdd86 | 12736 | b = loc->owner; |
348d480f | 12737 | |
6f380991 | 12738 | if (!unduplicated_should_be_inserted (loc) |
348d480f | 12739 | || !breakpoint_address_is_meaningful (b) |
1e4d1764 YQ |
12740 | /* Don't detect duplicate for tracepoint locations because they are |
12741 | never duplicated. See the comments in field `duplicate' of | |
12742 | `struct bp_location'. */ | |
348d480f | 12743 | || is_tracepoint (b)) |
b775012e LM |
12744 | { |
12745 | /* Clear the condition modification flag. */ | |
12746 | loc->condition_changed = condition_unchanged; | |
12747 | continue; | |
12748 | } | |
348d480f PA |
12749 | |
12750 | /* Permanent breakpoint should always be inserted. */ | |
12751 | if (b->enable_state == bp_permanent && ! loc->inserted) | |
12752 | internal_error (__FILE__, __LINE__, | |
12753 | _("allegedly permanent breakpoint is not " | |
12754 | "actually inserted")); | |
12755 | ||
12756 | if (b->type == bp_hardware_watchpoint) | |
12757 | loc_first_p = &wp_loc_first; | |
12758 | else if (b->type == bp_read_watchpoint) | |
12759 | loc_first_p = &rwp_loc_first; | |
12760 | else if (b->type == bp_access_watchpoint) | |
12761 | loc_first_p = &awp_loc_first; | |
12762 | else | |
12763 | loc_first_p = &bp_loc_first; | |
12764 | ||
12765 | if (*loc_first_p == NULL | |
12766 | || (overlay_debugging && loc->section != (*loc_first_p)->section) | |
12767 | || !breakpoint_locations_match (loc, *loc_first_p)) | |
12768 | { | |
12769 | *loc_first_p = loc; | |
12770 | loc->duplicate = 0; | |
b775012e LM |
12771 | |
12772 | if (is_breakpoint (loc->owner) && loc->condition_changed) | |
12773 | { | |
12774 | loc->needs_update = 1; | |
12775 | /* Clear the condition modification flag. */ | |
12776 | loc->condition_changed = condition_unchanged; | |
12777 | } | |
348d480f PA |
12778 | continue; |
12779 | } | |
12780 | ||
934709f0 PW |
12781 | |
12782 | /* This and the above ensure the invariant that the first location | |
12783 | is not duplicated, and is the inserted one. | |
12784 | All following are marked as duplicated, and are not inserted. */ | |
12785 | if (loc->inserted) | |
12786 | swap_insertion (loc, *loc_first_p); | |
348d480f PA |
12787 | loc->duplicate = 1; |
12788 | ||
b775012e LM |
12789 | /* Clear the condition modification flag. */ |
12790 | loc->condition_changed = condition_unchanged; | |
12791 | ||
348d480f PA |
12792 | if ((*loc_first_p)->owner->enable_state == bp_permanent && loc->inserted |
12793 | && b->enable_state != bp_permanent) | |
12794 | internal_error (__FILE__, __LINE__, | |
12795 | _("another breakpoint was inserted on top of " | |
12796 | "a permanent breakpoint")); | |
12797 | } | |
12798 | ||
b775012e | 12799 | if (breakpoints_always_inserted_mode () |
348d480f | 12800 | && (have_live_inferiors () |
f5656ead | 12801 | || (gdbarch_has_global_breakpoints (target_gdbarch ())))) |
b775012e LM |
12802 | { |
12803 | if (should_insert) | |
12804 | insert_breakpoint_locations (); | |
12805 | else | |
12806 | { | |
12807 | /* Though should_insert is false, we may need to update conditions | |
12808 | on the target's side if it is evaluating such conditions. We | |
12809 | only update conditions for locations that are marked | |
12810 | "needs_update". */ | |
12811 | update_inserted_breakpoint_locations (); | |
12812 | } | |
12813 | } | |
348d480f | 12814 | |
1e4d1764 YQ |
12815 | if (should_insert) |
12816 | download_tracepoint_locations (); | |
12817 | ||
348d480f PA |
12818 | do_cleanups (cleanups); |
12819 | } | |
12820 | ||
12821 | void | |
12822 | breakpoint_retire_moribund (void) | |
12823 | { | |
12824 | struct bp_location *loc; | |
12825 | int ix; | |
12826 | ||
12827 | for (ix = 0; VEC_iterate (bp_location_p, moribund_locations, ix, loc); ++ix) | |
12828 | if (--(loc->events_till_retirement) == 0) | |
12829 | { | |
12830 | decref_bp_location (&loc); | |
12831 | VEC_unordered_remove (bp_location_p, moribund_locations, ix); | |
12832 | --ix; | |
12833 | } | |
12834 | } | |
12835 | ||
12836 | static void | |
12837 | update_global_location_list_nothrow (int inserting) | |
12838 | { | |
bfd189b1 | 12839 | volatile struct gdb_exception e; |
348d480f PA |
12840 | |
12841 | TRY_CATCH (e, RETURN_MASK_ERROR) | |
12842 | update_global_location_list (inserting); | |
12843 | } | |
12844 | ||
12845 | /* Clear BKP from a BPS. */ | |
12846 | ||
12847 | static void | |
12848 | bpstat_remove_bp_location (bpstat bps, struct breakpoint *bpt) | |
12849 | { | |
12850 | bpstat bs; | |
12851 | ||
12852 | for (bs = bps; bs; bs = bs->next) | |
12853 | if (bs->breakpoint_at == bpt) | |
12854 | { | |
12855 | bs->breakpoint_at = NULL; | |
12856 | bs->old_val = NULL; | |
12857 | /* bs->commands will be freed later. */ | |
12858 | } | |
12859 | } | |
12860 | ||
12861 | /* Callback for iterate_over_threads. */ | |
12862 | static int | |
12863 | bpstat_remove_breakpoint_callback (struct thread_info *th, void *data) | |
12864 | { | |
12865 | struct breakpoint *bpt = data; | |
12866 | ||
12867 | bpstat_remove_bp_location (th->control.stop_bpstat, bpt); | |
12868 | return 0; | |
12869 | } | |
12870 | ||
12871 | /* Helper for breakpoint and tracepoint breakpoint_ops->mention | |
12872 | callbacks. */ | |
12873 | ||
12874 | static void | |
12875 | say_where (struct breakpoint *b) | |
12876 | { | |
12877 | struct value_print_options opts; | |
12878 | ||
12879 | get_user_print_options (&opts); | |
12880 | ||
12881 | /* i18n: cagney/2005-02-11: Below needs to be merged into a | |
12882 | single string. */ | |
12883 | if (b->loc == NULL) | |
12884 | { | |
12885 | printf_filtered (_(" (%s) pending."), b->addr_string); | |
12886 | } | |
12887 | else | |
12888 | { | |
2f202fde | 12889 | if (opts.addressprint || b->loc->symtab == NULL) |
348d480f PA |
12890 | { |
12891 | printf_filtered (" at "); | |
12892 | fputs_filtered (paddress (b->loc->gdbarch, b->loc->address), | |
12893 | gdb_stdout); | |
12894 | } | |
2f202fde | 12895 | if (b->loc->symtab != NULL) |
f8eba3c6 TT |
12896 | { |
12897 | /* If there is a single location, we can print the location | |
12898 | more nicely. */ | |
12899 | if (b->loc->next == NULL) | |
12900 | printf_filtered (": file %s, line %d.", | |
05cba821 JK |
12901 | symtab_to_filename_for_display (b->loc->symtab), |
12902 | b->loc->line_number); | |
f8eba3c6 TT |
12903 | else |
12904 | /* This is not ideal, but each location may have a | |
12905 | different file name, and this at least reflects the | |
12906 | real situation somewhat. */ | |
12907 | printf_filtered (": %s.", b->addr_string); | |
12908 | } | |
348d480f PA |
12909 | |
12910 | if (b->loc->next) | |
12911 | { | |
12912 | struct bp_location *loc = b->loc; | |
12913 | int n = 0; | |
12914 | for (; loc; loc = loc->next) | |
12915 | ++n; | |
12916 | printf_filtered (" (%d locations)", n); | |
12917 | } | |
12918 | } | |
12919 | } | |
12920 | ||
348d480f PA |
12921 | /* Default bp_location_ops methods. */ |
12922 | ||
12923 | static void | |
12924 | bp_location_dtor (struct bp_location *self) | |
12925 | { | |
12926 | xfree (self->cond); | |
b775012e LM |
12927 | if (self->cond_bytecode) |
12928 | free_agent_expr (self->cond_bytecode); | |
348d480f | 12929 | xfree (self->function_name); |
8b4f3082 PA |
12930 | |
12931 | VEC_free (agent_expr_p, self->target_info.conditions); | |
12932 | VEC_free (agent_expr_p, self->target_info.tcommands); | |
348d480f PA |
12933 | } |
12934 | ||
12935 | static const struct bp_location_ops bp_location_ops = | |
12936 | { | |
12937 | bp_location_dtor | |
12938 | }; | |
12939 | ||
2060206e PA |
12940 | /* Default breakpoint_ops methods all breakpoint_ops ultimately |
12941 | inherit from. */ | |
348d480f | 12942 | |
2060206e PA |
12943 | static void |
12944 | base_breakpoint_dtor (struct breakpoint *self) | |
348d480f PA |
12945 | { |
12946 | decref_counted_command_line (&self->commands); | |
12947 | xfree (self->cond_string); | |
fb81d016 | 12948 | xfree (self->extra_string); |
348d480f | 12949 | xfree (self->addr_string); |
f8eba3c6 | 12950 | xfree (self->filter); |
348d480f | 12951 | xfree (self->addr_string_range_end); |
348d480f PA |
12952 | } |
12953 | ||
2060206e PA |
12954 | static struct bp_location * |
12955 | base_breakpoint_allocate_location (struct breakpoint *self) | |
348d480f PA |
12956 | { |
12957 | struct bp_location *loc; | |
12958 | ||
12959 | loc = XNEW (struct bp_location); | |
12960 | init_bp_location (loc, &bp_location_ops, self); | |
12961 | return loc; | |
12962 | } | |
12963 | ||
2060206e PA |
12964 | static void |
12965 | base_breakpoint_re_set (struct breakpoint *b) | |
12966 | { | |
12967 | /* Nothing to re-set. */ | |
12968 | } | |
12969 | ||
12970 | #define internal_error_pure_virtual_called() \ | |
12971 | gdb_assert_not_reached ("pure virtual function called") | |
12972 | ||
12973 | static int | |
12974 | base_breakpoint_insert_location (struct bp_location *bl) | |
12975 | { | |
12976 | internal_error_pure_virtual_called (); | |
12977 | } | |
12978 | ||
12979 | static int | |
12980 | base_breakpoint_remove_location (struct bp_location *bl) | |
12981 | { | |
12982 | internal_error_pure_virtual_called (); | |
12983 | } | |
12984 | ||
12985 | static int | |
12986 | base_breakpoint_breakpoint_hit (const struct bp_location *bl, | |
12987 | struct address_space *aspace, | |
09ac7c10 TT |
12988 | CORE_ADDR bp_addr, |
12989 | const struct target_waitstatus *ws) | |
2060206e PA |
12990 | { |
12991 | internal_error_pure_virtual_called (); | |
12992 | } | |
12993 | ||
12994 | static void | |
12995 | base_breakpoint_check_status (bpstat bs) | |
12996 | { | |
12997 | /* Always stop. */ | |
12998 | } | |
12999 | ||
13000 | /* A "works_in_software_mode" breakpoint_ops method that just internal | |
13001 | errors. */ | |
13002 | ||
13003 | static int | |
13004 | base_breakpoint_works_in_software_mode (const struct breakpoint *b) | |
13005 | { | |
13006 | internal_error_pure_virtual_called (); | |
13007 | } | |
13008 | ||
13009 | /* A "resources_needed" breakpoint_ops method that just internal | |
13010 | errors. */ | |
13011 | ||
13012 | static int | |
13013 | base_breakpoint_resources_needed (const struct bp_location *bl) | |
13014 | { | |
13015 | internal_error_pure_virtual_called (); | |
13016 | } | |
13017 | ||
13018 | static enum print_stop_action | |
13019 | base_breakpoint_print_it (bpstat bs) | |
13020 | { | |
13021 | internal_error_pure_virtual_called (); | |
13022 | } | |
13023 | ||
13024 | static void | |
13025 | base_breakpoint_print_one_detail (const struct breakpoint *self, | |
13026 | struct ui_out *uiout) | |
13027 | { | |
13028 | /* nothing */ | |
13029 | } | |
13030 | ||
13031 | static void | |
13032 | base_breakpoint_print_mention (struct breakpoint *b) | |
13033 | { | |
13034 | internal_error_pure_virtual_called (); | |
13035 | } | |
13036 | ||
13037 | static void | |
13038 | base_breakpoint_print_recreate (struct breakpoint *b, struct ui_file *fp) | |
13039 | { | |
13040 | internal_error_pure_virtual_called (); | |
13041 | } | |
13042 | ||
983af33b SDJ |
13043 | static void |
13044 | base_breakpoint_create_sals_from_address (char **arg, | |
13045 | struct linespec_result *canonical, | |
13046 | enum bptype type_wanted, | |
13047 | char *addr_start, | |
13048 | char **copy_arg) | |
13049 | { | |
13050 | internal_error_pure_virtual_called (); | |
13051 | } | |
13052 | ||
13053 | static void | |
13054 | base_breakpoint_create_breakpoints_sal (struct gdbarch *gdbarch, | |
13055 | struct linespec_result *c, | |
983af33b | 13056 | char *cond_string, |
e7e0cddf | 13057 | char *extra_string, |
983af33b SDJ |
13058 | enum bptype type_wanted, |
13059 | enum bpdisp disposition, | |
13060 | int thread, | |
13061 | int task, int ignore_count, | |
13062 | const struct breakpoint_ops *o, | |
13063 | int from_tty, int enabled, | |
44f238bb | 13064 | int internal, unsigned flags) |
983af33b SDJ |
13065 | { |
13066 | internal_error_pure_virtual_called (); | |
13067 | } | |
13068 | ||
13069 | static void | |
13070 | base_breakpoint_decode_linespec (struct breakpoint *b, char **s, | |
13071 | struct symtabs_and_lines *sals) | |
13072 | { | |
13073 | internal_error_pure_virtual_called (); | |
13074 | } | |
13075 | ||
ab04a2af TT |
13076 | /* The default 'explains_signal' method. */ |
13077 | ||
47591c29 | 13078 | static int |
427cd150 | 13079 | base_breakpoint_explains_signal (struct breakpoint *b, enum gdb_signal sig) |
ab04a2af | 13080 | { |
47591c29 | 13081 | return 1; |
ab04a2af TT |
13082 | } |
13083 | ||
9d6e6e84 HZ |
13084 | /* The default "after_condition_true" method. */ |
13085 | ||
13086 | static void | |
13087 | base_breakpoint_after_condition_true (struct bpstats *bs) | |
13088 | { | |
13089 | /* Nothing to do. */ | |
13090 | } | |
13091 | ||
ab04a2af | 13092 | struct breakpoint_ops base_breakpoint_ops = |
2060206e PA |
13093 | { |
13094 | base_breakpoint_dtor, | |
13095 | base_breakpoint_allocate_location, | |
13096 | base_breakpoint_re_set, | |
13097 | base_breakpoint_insert_location, | |
13098 | base_breakpoint_remove_location, | |
13099 | base_breakpoint_breakpoint_hit, | |
13100 | base_breakpoint_check_status, | |
13101 | base_breakpoint_resources_needed, | |
13102 | base_breakpoint_works_in_software_mode, | |
13103 | base_breakpoint_print_it, | |
13104 | NULL, | |
13105 | base_breakpoint_print_one_detail, | |
13106 | base_breakpoint_print_mention, | |
983af33b SDJ |
13107 | base_breakpoint_print_recreate, |
13108 | base_breakpoint_create_sals_from_address, | |
13109 | base_breakpoint_create_breakpoints_sal, | |
13110 | base_breakpoint_decode_linespec, | |
9d6e6e84 HZ |
13111 | base_breakpoint_explains_signal, |
13112 | base_breakpoint_after_condition_true, | |
2060206e PA |
13113 | }; |
13114 | ||
13115 | /* Default breakpoint_ops methods. */ | |
13116 | ||
13117 | static void | |
348d480f PA |
13118 | bkpt_re_set (struct breakpoint *b) |
13119 | { | |
06edf0c0 PA |
13120 | /* FIXME: is this still reachable? */ |
13121 | if (b->addr_string == NULL) | |
13122 | { | |
13123 | /* Anything without a string can't be re-set. */ | |
348d480f | 13124 | delete_breakpoint (b); |
06edf0c0 | 13125 | return; |
348d480f | 13126 | } |
06edf0c0 PA |
13127 | |
13128 | breakpoint_re_set_default (b); | |
348d480f PA |
13129 | } |
13130 | ||
ef370185 JB |
13131 | /* Copy SRC's shadow buffer and whatever else we'd set if we actually |
13132 | inserted DEST, so we can remove it later, in case SRC is removed | |
13133 | first. */ | |
13134 | ||
13135 | static void | |
13136 | bp_target_info_copy_insertion_state (struct bp_target_info *dest, | |
13137 | const struct bp_target_info *src) | |
13138 | { | |
13139 | dest->shadow_len = src->shadow_len; | |
13140 | memcpy (dest->shadow_contents, src->shadow_contents, src->shadow_len); | |
13141 | dest->placed_size = src->placed_size; | |
13142 | } | |
13143 | ||
2060206e | 13144 | static int |
348d480f PA |
13145 | bkpt_insert_location (struct bp_location *bl) |
13146 | { | |
13147 | if (bl->loc_type == bp_loc_hardware_breakpoint) | |
13148 | return target_insert_hw_breakpoint (bl->gdbarch, | |
13149 | &bl->target_info); | |
13150 | else | |
ef370185 JB |
13151 | { |
13152 | struct bp_target_info *bp_tgt = &bl->target_info; | |
13153 | int ret; | |
13154 | int sss_slot; | |
13155 | ||
13156 | /* There is no need to insert a breakpoint if an unconditional | |
13157 | raw/sss breakpoint is already inserted at that location. */ | |
13158 | sss_slot = find_single_step_breakpoint (bp_tgt->placed_address_space, | |
13159 | bp_tgt->placed_address); | |
13160 | if (sss_slot >= 0) | |
13161 | { | |
13162 | struct bp_target_info *sss_bp_tgt = single_step_breakpoints[sss_slot]; | |
13163 | ||
13164 | bp_target_info_copy_insertion_state (bp_tgt, sss_bp_tgt); | |
13165 | return 0; | |
13166 | } | |
13167 | ||
13168 | return target_insert_breakpoint (bl->gdbarch, bp_tgt); | |
13169 | } | |
348d480f PA |
13170 | } |
13171 | ||
2060206e | 13172 | static int |
348d480f PA |
13173 | bkpt_remove_location (struct bp_location *bl) |
13174 | { | |
13175 | if (bl->loc_type == bp_loc_hardware_breakpoint) | |
13176 | return target_remove_hw_breakpoint (bl->gdbarch, &bl->target_info); | |
13177 | else | |
ef370185 JB |
13178 | { |
13179 | struct bp_target_info *bp_tgt = &bl->target_info; | |
13180 | struct address_space *aspace = bp_tgt->placed_address_space; | |
13181 | CORE_ADDR address = bp_tgt->placed_address; | |
13182 | ||
13183 | /* Only remove the breakpoint if there is no raw/sss breakpoint | |
13184 | still inserted at this location. Otherwise, we would be | |
13185 | effectively disabling the raw/sss breakpoint. */ | |
13186 | if (single_step_breakpoint_inserted_here_p (aspace, address)) | |
13187 | return 0; | |
13188 | ||
13189 | return target_remove_breakpoint (bl->gdbarch, bp_tgt); | |
13190 | } | |
348d480f PA |
13191 | } |
13192 | ||
2060206e | 13193 | static int |
348d480f | 13194 | bkpt_breakpoint_hit (const struct bp_location *bl, |
09ac7c10 TT |
13195 | struct address_space *aspace, CORE_ADDR bp_addr, |
13196 | const struct target_waitstatus *ws) | |
348d480f | 13197 | { |
09ac7c10 | 13198 | if (ws->kind != TARGET_WAITKIND_STOPPED |
a493e3e2 | 13199 | || ws->value.sig != GDB_SIGNAL_TRAP) |
09ac7c10 TT |
13200 | return 0; |
13201 | ||
348d480f PA |
13202 | if (!breakpoint_address_match (bl->pspace->aspace, bl->address, |
13203 | aspace, bp_addr)) | |
13204 | return 0; | |
13205 | ||
13206 | if (overlay_debugging /* unmapped overlay section */ | |
13207 | && section_is_overlay (bl->section) | |
13208 | && !section_is_mapped (bl->section)) | |
13209 | return 0; | |
13210 | ||
13211 | return 1; | |
13212 | } | |
13213 | ||
cd1608cc PA |
13214 | static int |
13215 | dprintf_breakpoint_hit (const struct bp_location *bl, | |
13216 | struct address_space *aspace, CORE_ADDR bp_addr, | |
13217 | const struct target_waitstatus *ws) | |
13218 | { | |
13219 | if (dprintf_style == dprintf_style_agent | |
13220 | && target_can_run_breakpoint_commands ()) | |
13221 | { | |
13222 | /* An agent-style dprintf never causes a stop. If we see a trap | |
13223 | for this address it must be for a breakpoint that happens to | |
13224 | be set at the same address. */ | |
13225 | return 0; | |
13226 | } | |
13227 | ||
13228 | return bkpt_breakpoint_hit (bl, aspace, bp_addr, ws); | |
13229 | } | |
13230 | ||
2060206e | 13231 | static int |
348d480f PA |
13232 | bkpt_resources_needed (const struct bp_location *bl) |
13233 | { | |
13234 | gdb_assert (bl->owner->type == bp_hardware_breakpoint); | |
13235 | ||
13236 | return 1; | |
13237 | } | |
13238 | ||
2060206e | 13239 | static enum print_stop_action |
348d480f PA |
13240 | bkpt_print_it (bpstat bs) |
13241 | { | |
348d480f PA |
13242 | struct breakpoint *b; |
13243 | const struct bp_location *bl; | |
001c8c33 | 13244 | int bp_temp; |
79a45e25 | 13245 | struct ui_out *uiout = current_uiout; |
348d480f PA |
13246 | |
13247 | gdb_assert (bs->bp_location_at != NULL); | |
13248 | ||
13249 | bl = bs->bp_location_at; | |
13250 | b = bs->breakpoint_at; | |
13251 | ||
001c8c33 PA |
13252 | bp_temp = b->disposition == disp_del; |
13253 | if (bl->address != bl->requested_address) | |
13254 | breakpoint_adjustment_warning (bl->requested_address, | |
13255 | bl->address, | |
13256 | b->number, 1); | |
13257 | annotate_breakpoint (b->number); | |
13258 | if (bp_temp) | |
13259 | ui_out_text (uiout, "\nTemporary breakpoint "); | |
13260 | else | |
13261 | ui_out_text (uiout, "\nBreakpoint "); | |
13262 | if (ui_out_is_mi_like_p (uiout)) | |
348d480f | 13263 | { |
001c8c33 PA |
13264 | ui_out_field_string (uiout, "reason", |
13265 | async_reason_lookup (EXEC_ASYNC_BREAKPOINT_HIT)); | |
13266 | ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition)); | |
06edf0c0 | 13267 | } |
001c8c33 PA |
13268 | ui_out_field_int (uiout, "bkptno", b->number); |
13269 | ui_out_text (uiout, ", "); | |
06edf0c0 | 13270 | |
001c8c33 | 13271 | return PRINT_SRC_AND_LOC; |
06edf0c0 PA |
13272 | } |
13273 | ||
2060206e | 13274 | static void |
06edf0c0 PA |
13275 | bkpt_print_mention (struct breakpoint *b) |
13276 | { | |
79a45e25 | 13277 | if (ui_out_is_mi_like_p (current_uiout)) |
06edf0c0 PA |
13278 | return; |
13279 | ||
13280 | switch (b->type) | |
13281 | { | |
13282 | case bp_breakpoint: | |
13283 | case bp_gnu_ifunc_resolver: | |
13284 | if (b->disposition == disp_del) | |
13285 | printf_filtered (_("Temporary breakpoint")); | |
13286 | else | |
13287 | printf_filtered (_("Breakpoint")); | |
13288 | printf_filtered (_(" %d"), b->number); | |
13289 | if (b->type == bp_gnu_ifunc_resolver) | |
13290 | printf_filtered (_(" at gnu-indirect-function resolver")); | |
13291 | break; | |
13292 | case bp_hardware_breakpoint: | |
13293 | printf_filtered (_("Hardware assisted breakpoint %d"), b->number); | |
13294 | break; | |
e7e0cddf SS |
13295 | case bp_dprintf: |
13296 | printf_filtered (_("Dprintf %d"), b->number); | |
13297 | break; | |
06edf0c0 PA |
13298 | } |
13299 | ||
13300 | say_where (b); | |
13301 | } | |
13302 | ||
2060206e | 13303 | static void |
06edf0c0 PA |
13304 | bkpt_print_recreate (struct breakpoint *tp, struct ui_file *fp) |
13305 | { | |
13306 | if (tp->type == bp_breakpoint && tp->disposition == disp_del) | |
13307 | fprintf_unfiltered (fp, "tbreak"); | |
13308 | else if (tp->type == bp_breakpoint) | |
13309 | fprintf_unfiltered (fp, "break"); | |
13310 | else if (tp->type == bp_hardware_breakpoint | |
13311 | && tp->disposition == disp_del) | |
13312 | fprintf_unfiltered (fp, "thbreak"); | |
13313 | else if (tp->type == bp_hardware_breakpoint) | |
13314 | fprintf_unfiltered (fp, "hbreak"); | |
13315 | else | |
13316 | internal_error (__FILE__, __LINE__, | |
13317 | _("unhandled breakpoint type %d"), (int) tp->type); | |
13318 | ||
2060206e | 13319 | fprintf_unfiltered (fp, " %s", tp->addr_string); |
dd11a36c | 13320 | print_recreate_thread (tp, fp); |
06edf0c0 PA |
13321 | } |
13322 | ||
983af33b SDJ |
13323 | static void |
13324 | bkpt_create_sals_from_address (char **arg, | |
13325 | struct linespec_result *canonical, | |
13326 | enum bptype type_wanted, | |
13327 | char *addr_start, char **copy_arg) | |
13328 | { | |
13329 | create_sals_from_address_default (arg, canonical, type_wanted, | |
13330 | addr_start, copy_arg); | |
13331 | } | |
13332 | ||
13333 | static void | |
13334 | bkpt_create_breakpoints_sal (struct gdbarch *gdbarch, | |
13335 | struct linespec_result *canonical, | |
983af33b | 13336 | char *cond_string, |
e7e0cddf | 13337 | char *extra_string, |
983af33b SDJ |
13338 | enum bptype type_wanted, |
13339 | enum bpdisp disposition, | |
13340 | int thread, | |
13341 | int task, int ignore_count, | |
13342 | const struct breakpoint_ops *ops, | |
13343 | int from_tty, int enabled, | |
44f238bb | 13344 | int internal, unsigned flags) |
983af33b | 13345 | { |
023fa29b | 13346 | create_breakpoints_sal_default (gdbarch, canonical, |
e7e0cddf SS |
13347 | cond_string, extra_string, |
13348 | type_wanted, | |
983af33b SDJ |
13349 | disposition, thread, task, |
13350 | ignore_count, ops, from_tty, | |
44f238bb | 13351 | enabled, internal, flags); |
983af33b SDJ |
13352 | } |
13353 | ||
13354 | static void | |
13355 | bkpt_decode_linespec (struct breakpoint *b, char **s, | |
13356 | struct symtabs_and_lines *sals) | |
13357 | { | |
13358 | decode_linespec_default (b, s, sals); | |
13359 | } | |
13360 | ||
06edf0c0 PA |
13361 | /* Virtual table for internal breakpoints. */ |
13362 | ||
13363 | static void | |
13364 | internal_bkpt_re_set (struct breakpoint *b) | |
13365 | { | |
13366 | switch (b->type) | |
13367 | { | |
13368 | /* Delete overlay event and longjmp master breakpoints; they | |
13369 | will be reset later by breakpoint_re_set. */ | |
13370 | case bp_overlay_event: | |
13371 | case bp_longjmp_master: | |
13372 | case bp_std_terminate_master: | |
13373 | case bp_exception_master: | |
13374 | delete_breakpoint (b); | |
13375 | break; | |
13376 | ||
13377 | /* This breakpoint is special, it's set up when the inferior | |
13378 | starts and we really don't want to touch it. */ | |
13379 | case bp_shlib_event: | |
13380 | ||
13381 | /* Like bp_shlib_event, this breakpoint type is special. Once | |
13382 | it is set up, we do not want to touch it. */ | |
13383 | case bp_thread_event: | |
13384 | break; | |
13385 | } | |
13386 | } | |
13387 | ||
13388 | static void | |
13389 | internal_bkpt_check_status (bpstat bs) | |
13390 | { | |
a9b3a50f PA |
13391 | if (bs->breakpoint_at->type == bp_shlib_event) |
13392 | { | |
13393 | /* If requested, stop when the dynamic linker notifies GDB of | |
13394 | events. This allows the user to get control and place | |
13395 | breakpoints in initializer routines for dynamically loaded | |
13396 | objects (among other things). */ | |
13397 | bs->stop = stop_on_solib_events; | |
13398 | bs->print = stop_on_solib_events; | |
13399 | } | |
13400 | else | |
13401 | bs->stop = 0; | |
06edf0c0 PA |
13402 | } |
13403 | ||
13404 | static enum print_stop_action | |
13405 | internal_bkpt_print_it (bpstat bs) | |
13406 | { | |
06edf0c0 | 13407 | struct breakpoint *b; |
06edf0c0 | 13408 | |
06edf0c0 PA |
13409 | b = bs->breakpoint_at; |
13410 | ||
06edf0c0 PA |
13411 | switch (b->type) |
13412 | { | |
348d480f PA |
13413 | case bp_shlib_event: |
13414 | /* Did we stop because the user set the stop_on_solib_events | |
13415 | variable? (If so, we report this as a generic, "Stopped due | |
13416 | to shlib event" message.) */ | |
edcc5120 | 13417 | print_solib_event (0); |
348d480f PA |
13418 | break; |
13419 | ||
13420 | case bp_thread_event: | |
13421 | /* Not sure how we will get here. | |
13422 | GDB should not stop for these breakpoints. */ | |
13423 | printf_filtered (_("Thread Event Breakpoint: gdb should not stop!\n")); | |
348d480f PA |
13424 | break; |
13425 | ||
13426 | case bp_overlay_event: | |
13427 | /* By analogy with the thread event, GDB should not stop for these. */ | |
13428 | printf_filtered (_("Overlay Event Breakpoint: gdb should not stop!\n")); | |
348d480f PA |
13429 | break; |
13430 | ||
13431 | case bp_longjmp_master: | |
13432 | /* These should never be enabled. */ | |
13433 | printf_filtered (_("Longjmp Master Breakpoint: gdb should not stop!\n")); | |
348d480f PA |
13434 | break; |
13435 | ||
13436 | case bp_std_terminate_master: | |
13437 | /* These should never be enabled. */ | |
13438 | printf_filtered (_("std::terminate Master Breakpoint: " | |
13439 | "gdb should not stop!\n")); | |
348d480f PA |
13440 | break; |
13441 | ||
13442 | case bp_exception_master: | |
13443 | /* These should never be enabled. */ | |
13444 | printf_filtered (_("Exception Master Breakpoint: " | |
13445 | "gdb should not stop!\n")); | |
06edf0c0 PA |
13446 | break; |
13447 | } | |
13448 | ||
001c8c33 | 13449 | return PRINT_NOTHING; |
06edf0c0 PA |
13450 | } |
13451 | ||
13452 | static void | |
13453 | internal_bkpt_print_mention (struct breakpoint *b) | |
13454 | { | |
13455 | /* Nothing to mention. These breakpoints are internal. */ | |
13456 | } | |
13457 | ||
06edf0c0 PA |
13458 | /* Virtual table for momentary breakpoints */ |
13459 | ||
13460 | static void | |
13461 | momentary_bkpt_re_set (struct breakpoint *b) | |
13462 | { | |
13463 | /* Keep temporary breakpoints, which can be encountered when we step | |
4d1eb6b4 | 13464 | over a dlopen call and solib_add is resetting the breakpoints. |
06edf0c0 PA |
13465 | Otherwise these should have been blown away via the cleanup chain |
13466 | or by breakpoint_init_inferior when we rerun the executable. */ | |
13467 | } | |
13468 | ||
13469 | static void | |
13470 | momentary_bkpt_check_status (bpstat bs) | |
13471 | { | |
13472 | /* Nothing. The point of these breakpoints is causing a stop. */ | |
13473 | } | |
13474 | ||
13475 | static enum print_stop_action | |
13476 | momentary_bkpt_print_it (bpstat bs) | |
13477 | { | |
79a45e25 PA |
13478 | struct ui_out *uiout = current_uiout; |
13479 | ||
001c8c33 | 13480 | if (ui_out_is_mi_like_p (uiout)) |
06edf0c0 | 13481 | { |
001c8c33 | 13482 | struct breakpoint *b = bs->breakpoint_at; |
348d480f | 13483 | |
001c8c33 PA |
13484 | switch (b->type) |
13485 | { | |
13486 | case bp_finish: | |
13487 | ui_out_field_string | |
13488 | (uiout, "reason", | |
13489 | async_reason_lookup (EXEC_ASYNC_FUNCTION_FINISHED)); | |
13490 | break; | |
348d480f | 13491 | |
001c8c33 PA |
13492 | case bp_until: |
13493 | ui_out_field_string | |
13494 | (uiout, "reason", | |
13495 | async_reason_lookup (EXEC_ASYNC_LOCATION_REACHED)); | |
13496 | break; | |
13497 | } | |
348d480f PA |
13498 | } |
13499 | ||
001c8c33 | 13500 | return PRINT_UNKNOWN; |
348d480f PA |
13501 | } |
13502 | ||
06edf0c0 PA |
13503 | static void |
13504 | momentary_bkpt_print_mention (struct breakpoint *b) | |
348d480f | 13505 | { |
06edf0c0 | 13506 | /* Nothing to mention. These breakpoints are internal. */ |
348d480f PA |
13507 | } |
13508 | ||
e2e4d78b JK |
13509 | /* Ensure INITIATING_FRAME is cleared when no such breakpoint exists. |
13510 | ||
13511 | It gets cleared already on the removal of the first one of such placed | |
13512 | breakpoints. This is OK as they get all removed altogether. */ | |
13513 | ||
13514 | static void | |
13515 | longjmp_bkpt_dtor (struct breakpoint *self) | |
13516 | { | |
13517 | struct thread_info *tp = find_thread_id (self->thread); | |
13518 | ||
13519 | if (tp) | |
13520 | tp->initiating_frame = null_frame_id; | |
13521 | ||
13522 | momentary_breakpoint_ops.dtor (self); | |
13523 | } | |
13524 | ||
55aa24fb SDJ |
13525 | /* Specific methods for probe breakpoints. */ |
13526 | ||
13527 | static int | |
13528 | bkpt_probe_insert_location (struct bp_location *bl) | |
13529 | { | |
13530 | int v = bkpt_insert_location (bl); | |
13531 | ||
13532 | if (v == 0) | |
13533 | { | |
13534 | /* The insertion was successful, now let's set the probe's semaphore | |
13535 | if needed. */ | |
729662a5 TT |
13536 | bl->probe.probe->pops->set_semaphore (bl->probe.probe, |
13537 | bl->probe.objfile, | |
13538 | bl->gdbarch); | |
55aa24fb SDJ |
13539 | } |
13540 | ||
13541 | return v; | |
13542 | } | |
13543 | ||
13544 | static int | |
13545 | bkpt_probe_remove_location (struct bp_location *bl) | |
13546 | { | |
13547 | /* Let's clear the semaphore before removing the location. */ | |
729662a5 TT |
13548 | bl->probe.probe->pops->clear_semaphore (bl->probe.probe, |
13549 | bl->probe.objfile, | |
13550 | bl->gdbarch); | |
55aa24fb SDJ |
13551 | |
13552 | return bkpt_remove_location (bl); | |
13553 | } | |
13554 | ||
13555 | static void | |
13556 | bkpt_probe_create_sals_from_address (char **arg, | |
13557 | struct linespec_result *canonical, | |
13558 | enum bptype type_wanted, | |
13559 | char *addr_start, char **copy_arg) | |
13560 | { | |
13561 | struct linespec_sals lsal; | |
13562 | ||
13563 | lsal.sals = parse_probes (arg, canonical); | |
13564 | ||
13565 | *copy_arg = xstrdup (canonical->addr_string); | |
13566 | lsal.canonical = xstrdup (*copy_arg); | |
13567 | ||
13568 | VEC_safe_push (linespec_sals, canonical->sals, &lsal); | |
13569 | } | |
13570 | ||
13571 | static void | |
13572 | bkpt_probe_decode_linespec (struct breakpoint *b, char **s, | |
13573 | struct symtabs_and_lines *sals) | |
13574 | { | |
13575 | *sals = parse_probes (s, NULL); | |
13576 | if (!sals->sals) | |
13577 | error (_("probe not found")); | |
13578 | } | |
13579 | ||
348d480f | 13580 | /* The breakpoint_ops structure to be used in tracepoints. */ |
876fa593 | 13581 | |
348d480f PA |
13582 | static void |
13583 | tracepoint_re_set (struct breakpoint *b) | |
13584 | { | |
13585 | breakpoint_re_set_default (b); | |
13586 | } | |
876fa593 | 13587 | |
348d480f PA |
13588 | static int |
13589 | tracepoint_breakpoint_hit (const struct bp_location *bl, | |
09ac7c10 TT |
13590 | struct address_space *aspace, CORE_ADDR bp_addr, |
13591 | const struct target_waitstatus *ws) | |
348d480f PA |
13592 | { |
13593 | /* By definition, the inferior does not report stops at | |
13594 | tracepoints. */ | |
13595 | return 0; | |
74960c60 VP |
13596 | } |
13597 | ||
13598 | static void | |
348d480f PA |
13599 | tracepoint_print_one_detail (const struct breakpoint *self, |
13600 | struct ui_out *uiout) | |
74960c60 | 13601 | { |
d9b3f62e PA |
13602 | struct tracepoint *tp = (struct tracepoint *) self; |
13603 | if (tp->static_trace_marker_id) | |
348d480f PA |
13604 | { |
13605 | gdb_assert (self->type == bp_static_tracepoint); | |
cc59ec59 | 13606 | |
348d480f PA |
13607 | ui_out_text (uiout, "\tmarker id is "); |
13608 | ui_out_field_string (uiout, "static-tracepoint-marker-string-id", | |
d9b3f62e | 13609 | tp->static_trace_marker_id); |
348d480f PA |
13610 | ui_out_text (uiout, "\n"); |
13611 | } | |
0d381245 VP |
13612 | } |
13613 | ||
a474d7c2 | 13614 | static void |
348d480f | 13615 | tracepoint_print_mention (struct breakpoint *b) |
a474d7c2 | 13616 | { |
79a45e25 | 13617 | if (ui_out_is_mi_like_p (current_uiout)) |
348d480f | 13618 | return; |
cc59ec59 | 13619 | |
348d480f PA |
13620 | switch (b->type) |
13621 | { | |
13622 | case bp_tracepoint: | |
13623 | printf_filtered (_("Tracepoint")); | |
13624 | printf_filtered (_(" %d"), b->number); | |
13625 | break; | |
13626 | case bp_fast_tracepoint: | |
13627 | printf_filtered (_("Fast tracepoint")); | |
13628 | printf_filtered (_(" %d"), b->number); | |
13629 | break; | |
13630 | case bp_static_tracepoint: | |
13631 | printf_filtered (_("Static tracepoint")); | |
13632 | printf_filtered (_(" %d"), b->number); | |
13633 | break; | |
13634 | default: | |
13635 | internal_error (__FILE__, __LINE__, | |
13636 | _("unhandled tracepoint type %d"), (int) b->type); | |
13637 | } | |
13638 | ||
13639 | say_where (b); | |
a474d7c2 PA |
13640 | } |
13641 | ||
348d480f | 13642 | static void |
d9b3f62e | 13643 | tracepoint_print_recreate (struct breakpoint *self, struct ui_file *fp) |
a474d7c2 | 13644 | { |
d9b3f62e PA |
13645 | struct tracepoint *tp = (struct tracepoint *) self; |
13646 | ||
13647 | if (self->type == bp_fast_tracepoint) | |
348d480f | 13648 | fprintf_unfiltered (fp, "ftrace"); |
d9b3f62e | 13649 | if (self->type == bp_static_tracepoint) |
348d480f | 13650 | fprintf_unfiltered (fp, "strace"); |
d9b3f62e | 13651 | else if (self->type == bp_tracepoint) |
348d480f PA |
13652 | fprintf_unfiltered (fp, "trace"); |
13653 | else | |
13654 | internal_error (__FILE__, __LINE__, | |
d9b3f62e | 13655 | _("unhandled tracepoint type %d"), (int) self->type); |
cc59ec59 | 13656 | |
d9b3f62e PA |
13657 | fprintf_unfiltered (fp, " %s", self->addr_string); |
13658 | print_recreate_thread (self, fp); | |
13659 | ||
13660 | if (tp->pass_count) | |
13661 | fprintf_unfiltered (fp, " passcount %d\n", tp->pass_count); | |
a474d7c2 PA |
13662 | } |
13663 | ||
983af33b SDJ |
13664 | static void |
13665 | tracepoint_create_sals_from_address (char **arg, | |
13666 | struct linespec_result *canonical, | |
13667 | enum bptype type_wanted, | |
13668 | char *addr_start, char **copy_arg) | |
13669 | { | |
13670 | create_sals_from_address_default (arg, canonical, type_wanted, | |
13671 | addr_start, copy_arg); | |
13672 | } | |
13673 | ||
13674 | static void | |
13675 | tracepoint_create_breakpoints_sal (struct gdbarch *gdbarch, | |
13676 | struct linespec_result *canonical, | |
983af33b | 13677 | char *cond_string, |
e7e0cddf | 13678 | char *extra_string, |
983af33b SDJ |
13679 | enum bptype type_wanted, |
13680 | enum bpdisp disposition, | |
13681 | int thread, | |
13682 | int task, int ignore_count, | |
13683 | const struct breakpoint_ops *ops, | |
13684 | int from_tty, int enabled, | |
44f238bb | 13685 | int internal, unsigned flags) |
983af33b | 13686 | { |
023fa29b | 13687 | create_breakpoints_sal_default (gdbarch, canonical, |
e7e0cddf SS |
13688 | cond_string, extra_string, |
13689 | type_wanted, | |
983af33b SDJ |
13690 | disposition, thread, task, |
13691 | ignore_count, ops, from_tty, | |
44f238bb | 13692 | enabled, internal, flags); |
983af33b SDJ |
13693 | } |
13694 | ||
13695 | static void | |
13696 | tracepoint_decode_linespec (struct breakpoint *b, char **s, | |
13697 | struct symtabs_and_lines *sals) | |
13698 | { | |
13699 | decode_linespec_default (b, s, sals); | |
13700 | } | |
13701 | ||
2060206e | 13702 | struct breakpoint_ops tracepoint_breakpoint_ops; |
348d480f | 13703 | |
55aa24fb SDJ |
13704 | /* The breakpoint_ops structure to be use on tracepoints placed in a |
13705 | static probe. */ | |
13706 | ||
13707 | static void | |
13708 | tracepoint_probe_create_sals_from_address (char **arg, | |
13709 | struct linespec_result *canonical, | |
13710 | enum bptype type_wanted, | |
13711 | char *addr_start, char **copy_arg) | |
13712 | { | |
13713 | /* We use the same method for breakpoint on probes. */ | |
13714 | bkpt_probe_create_sals_from_address (arg, canonical, type_wanted, | |
13715 | addr_start, copy_arg); | |
13716 | } | |
13717 | ||
13718 | static void | |
13719 | tracepoint_probe_decode_linespec (struct breakpoint *b, char **s, | |
13720 | struct symtabs_and_lines *sals) | |
13721 | { | |
13722 | /* We use the same method for breakpoint on probes. */ | |
13723 | bkpt_probe_decode_linespec (b, s, sals); | |
13724 | } | |
13725 | ||
13726 | static struct breakpoint_ops tracepoint_probe_breakpoint_ops; | |
13727 | ||
5c2b4418 HZ |
13728 | /* Dprintf breakpoint_ops methods. */ |
13729 | ||
13730 | static void | |
13731 | dprintf_re_set (struct breakpoint *b) | |
13732 | { | |
13733 | breakpoint_re_set_default (b); | |
13734 | ||
13735 | /* This breakpoint could have been pending, and be resolved now, and | |
13736 | if so, we should now have the extra string. If we don't, the | |
13737 | dprintf was malformed when created, but we couldn't tell because | |
13738 | we can't extract the extra string until the location is | |
13739 | resolved. */ | |
13740 | if (b->loc != NULL && b->extra_string == NULL) | |
13741 | error (_("Format string required")); | |
13742 | ||
13743 | /* 1 - connect to target 1, that can run breakpoint commands. | |
13744 | 2 - create a dprintf, which resolves fine. | |
13745 | 3 - disconnect from target 1 | |
13746 | 4 - connect to target 2, that can NOT run breakpoint commands. | |
13747 | ||
13748 | After steps #3/#4, you'll want the dprintf command list to | |
13749 | be updated, because target 1 and 2 may well return different | |
13750 | answers for target_can_run_breakpoint_commands(). | |
13751 | Given absence of finer grained resetting, we get to do | |
13752 | it all the time. */ | |
13753 | if (b->extra_string != NULL) | |
13754 | update_dprintf_command_list (b); | |
13755 | } | |
13756 | ||
2d9442cc HZ |
13757 | /* Implement the "print_recreate" breakpoint_ops method for dprintf. */ |
13758 | ||
13759 | static void | |
13760 | dprintf_print_recreate (struct breakpoint *tp, struct ui_file *fp) | |
13761 | { | |
13762 | fprintf_unfiltered (fp, "dprintf %s%s", tp->addr_string, | |
13763 | tp->extra_string); | |
13764 | print_recreate_thread (tp, fp); | |
13765 | } | |
13766 | ||
9d6e6e84 HZ |
13767 | /* Implement the "after_condition_true" breakpoint_ops method for |
13768 | dprintf. | |
13769 | ||
13770 | dprintf's are implemented with regular commands in their command | |
13771 | list, but we run the commands here instead of before presenting the | |
13772 | stop to the user, as dprintf's don't actually cause a stop. This | |
13773 | also makes it so that the commands of multiple dprintfs at the same | |
13774 | address are all handled. */ | |
13775 | ||
13776 | static void | |
13777 | dprintf_after_condition_true (struct bpstats *bs) | |
13778 | { | |
13779 | struct cleanup *old_chain; | |
13780 | struct bpstats tmp_bs = { NULL }; | |
13781 | struct bpstats *tmp_bs_p = &tmp_bs; | |
13782 | ||
13783 | /* dprintf's never cause a stop. This wasn't set in the | |
13784 | check_status hook instead because that would make the dprintf's | |
13785 | condition not be evaluated. */ | |
13786 | bs->stop = 0; | |
13787 | ||
13788 | /* Run the command list here. Take ownership of it instead of | |
13789 | copying. We never want these commands to run later in | |
13790 | bpstat_do_actions, if a breakpoint that causes a stop happens to | |
13791 | be set at same address as this dprintf, or even if running the | |
13792 | commands here throws. */ | |
13793 | tmp_bs.commands = bs->commands; | |
13794 | bs->commands = NULL; | |
13795 | old_chain = make_cleanup_decref_counted_command_line (&tmp_bs.commands); | |
13796 | ||
13797 | bpstat_do_actions_1 (&tmp_bs_p); | |
13798 | ||
13799 | /* 'tmp_bs.commands' will usually be NULL by now, but | |
13800 | bpstat_do_actions_1 may return early without processing the whole | |
13801 | list. */ | |
13802 | do_cleanups (old_chain); | |
13803 | } | |
13804 | ||
983af33b SDJ |
13805 | /* The breakpoint_ops structure to be used on static tracepoints with |
13806 | markers (`-m'). */ | |
13807 | ||
13808 | static void | |
13809 | strace_marker_create_sals_from_address (char **arg, | |
13810 | struct linespec_result *canonical, | |
13811 | enum bptype type_wanted, | |
13812 | char *addr_start, char **copy_arg) | |
13813 | { | |
13814 | struct linespec_sals lsal; | |
13815 | ||
13816 | lsal.sals = decode_static_tracepoint_spec (arg); | |
13817 | ||
13818 | *copy_arg = savestring (addr_start, *arg - addr_start); | |
13819 | ||
13820 | canonical->addr_string = xstrdup (*copy_arg); | |
13821 | lsal.canonical = xstrdup (*copy_arg); | |
13822 | VEC_safe_push (linespec_sals, canonical->sals, &lsal); | |
13823 | } | |
13824 | ||
13825 | static void | |
13826 | strace_marker_create_breakpoints_sal (struct gdbarch *gdbarch, | |
13827 | struct linespec_result *canonical, | |
983af33b | 13828 | char *cond_string, |
e7e0cddf | 13829 | char *extra_string, |
983af33b SDJ |
13830 | enum bptype type_wanted, |
13831 | enum bpdisp disposition, | |
13832 | int thread, | |
13833 | int task, int ignore_count, | |
13834 | const struct breakpoint_ops *ops, | |
13835 | int from_tty, int enabled, | |
44f238bb | 13836 | int internal, unsigned flags) |
983af33b SDJ |
13837 | { |
13838 | int i; | |
52d361e1 YQ |
13839 | struct linespec_sals *lsal = VEC_index (linespec_sals, |
13840 | canonical->sals, 0); | |
983af33b SDJ |
13841 | |
13842 | /* If the user is creating a static tracepoint by marker id | |
13843 | (strace -m MARKER_ID), then store the sals index, so that | |
13844 | breakpoint_re_set can try to match up which of the newly | |
13845 | found markers corresponds to this one, and, don't try to | |
13846 | expand multiple locations for each sal, given than SALS | |
13847 | already should contain all sals for MARKER_ID. */ | |
13848 | ||
13849 | for (i = 0; i < lsal->sals.nelts; ++i) | |
13850 | { | |
13851 | struct symtabs_and_lines expanded; | |
13852 | struct tracepoint *tp; | |
13853 | struct cleanup *old_chain; | |
13854 | char *addr_string; | |
13855 | ||
13856 | expanded.nelts = 1; | |
13857 | expanded.sals = &lsal->sals.sals[i]; | |
13858 | ||
13859 | addr_string = xstrdup (canonical->addr_string); | |
13860 | old_chain = make_cleanup (xfree, addr_string); | |
13861 | ||
13862 | tp = XCNEW (struct tracepoint); | |
13863 | init_breakpoint_sal (&tp->base, gdbarch, expanded, | |
13864 | addr_string, NULL, | |
e7e0cddf SS |
13865 | cond_string, extra_string, |
13866 | type_wanted, disposition, | |
983af33b | 13867 | thread, task, ignore_count, ops, |
44f238bb | 13868 | from_tty, enabled, internal, flags, |
983af33b SDJ |
13869 | canonical->special_display); |
13870 | /* Given that its possible to have multiple markers with | |
13871 | the same string id, if the user is creating a static | |
13872 | tracepoint by marker id ("strace -m MARKER_ID"), then | |
13873 | store the sals index, so that breakpoint_re_set can | |
13874 | try to match up which of the newly found markers | |
13875 | corresponds to this one */ | |
13876 | tp->static_trace_marker_id_idx = i; | |
13877 | ||
13878 | install_breakpoint (internal, &tp->base, 0); | |
13879 | ||
13880 | discard_cleanups (old_chain); | |
13881 | } | |
13882 | } | |
13883 | ||
13884 | static void | |
13885 | strace_marker_decode_linespec (struct breakpoint *b, char **s, | |
13886 | struct symtabs_and_lines *sals) | |
13887 | { | |
13888 | struct tracepoint *tp = (struct tracepoint *) b; | |
13889 | ||
13890 | *sals = decode_static_tracepoint_spec (s); | |
13891 | if (sals->nelts > tp->static_trace_marker_id_idx) | |
13892 | { | |
13893 | sals->sals[0] = sals->sals[tp->static_trace_marker_id_idx]; | |
13894 | sals->nelts = 1; | |
13895 | } | |
13896 | else | |
13897 | error (_("marker %s not found"), tp->static_trace_marker_id); | |
13898 | } | |
13899 | ||
13900 | static struct breakpoint_ops strace_marker_breakpoint_ops; | |
13901 | ||
13902 | static int | |
13903 | strace_marker_p (struct breakpoint *b) | |
13904 | { | |
13905 | return b->ops == &strace_marker_breakpoint_ops; | |
13906 | } | |
13907 | ||
53a5351d | 13908 | /* Delete a breakpoint and clean up all traces of it in the data |
f431efe5 | 13909 | structures. */ |
c906108c SS |
13910 | |
13911 | void | |
fba45db2 | 13912 | delete_breakpoint (struct breakpoint *bpt) |
c906108c | 13913 | { |
52f0bd74 | 13914 | struct breakpoint *b; |
c906108c | 13915 | |
8a3fe4f8 | 13916 | gdb_assert (bpt != NULL); |
c906108c | 13917 | |
4a64f543 MS |
13918 | /* Has this bp already been deleted? This can happen because |
13919 | multiple lists can hold pointers to bp's. bpstat lists are | |
13920 | especial culprits. | |
13921 | ||
13922 | One example of this happening is a watchpoint's scope bp. When | |
13923 | the scope bp triggers, we notice that the watchpoint is out of | |
13924 | scope, and delete it. We also delete its scope bp. But the | |
13925 | scope bp is marked "auto-deleting", and is already on a bpstat. | |
13926 | That bpstat is then checked for auto-deleting bp's, which are | |
13927 | deleted. | |
13928 | ||
13929 | A real solution to this problem might involve reference counts in | |
13930 | bp's, and/or giving them pointers back to their referencing | |
13931 | bpstat's, and teaching delete_breakpoint to only free a bp's | |
13932 | storage when no more references were extent. A cheaper bandaid | |
13933 | was chosen. */ | |
c906108c SS |
13934 | if (bpt->type == bp_none) |
13935 | return; | |
13936 | ||
4a64f543 MS |
13937 | /* At least avoid this stale reference until the reference counting |
13938 | of breakpoints gets resolved. */ | |
d0fb5eae | 13939 | if (bpt->related_breakpoint != bpt) |
e5a0a904 | 13940 | { |
d0fb5eae | 13941 | struct breakpoint *related; |
3a5c3e22 | 13942 | struct watchpoint *w; |
d0fb5eae JK |
13943 | |
13944 | if (bpt->type == bp_watchpoint_scope) | |
3a5c3e22 | 13945 | w = (struct watchpoint *) bpt->related_breakpoint; |
d0fb5eae | 13946 | else if (bpt->related_breakpoint->type == bp_watchpoint_scope) |
3a5c3e22 PA |
13947 | w = (struct watchpoint *) bpt; |
13948 | else | |
13949 | w = NULL; | |
13950 | if (w != NULL) | |
13951 | watchpoint_del_at_next_stop (w); | |
d0fb5eae JK |
13952 | |
13953 | /* Unlink bpt from the bpt->related_breakpoint ring. */ | |
13954 | for (related = bpt; related->related_breakpoint != bpt; | |
13955 | related = related->related_breakpoint); | |
13956 | related->related_breakpoint = bpt->related_breakpoint; | |
13957 | bpt->related_breakpoint = bpt; | |
e5a0a904 JK |
13958 | } |
13959 | ||
a9634178 TJB |
13960 | /* watch_command_1 creates a watchpoint but only sets its number if |
13961 | update_watchpoint succeeds in creating its bp_locations. If there's | |
13962 | a problem in that process, we'll be asked to delete the half-created | |
13963 | watchpoint. In that case, don't announce the deletion. */ | |
13964 | if (bpt->number) | |
13965 | observer_notify_breakpoint_deleted (bpt); | |
c906108c | 13966 | |
c906108c SS |
13967 | if (breakpoint_chain == bpt) |
13968 | breakpoint_chain = bpt->next; | |
13969 | ||
c906108c SS |
13970 | ALL_BREAKPOINTS (b) |
13971 | if (b->next == bpt) | |
c5aa993b JM |
13972 | { |
13973 | b->next = bpt->next; | |
13974 | break; | |
13975 | } | |
c906108c | 13976 | |
f431efe5 PA |
13977 | /* Be sure no bpstat's are pointing at the breakpoint after it's |
13978 | been freed. */ | |
13979 | /* FIXME, how can we find all bpstat's? We just check stop_bpstat | |
e5dd4106 | 13980 | in all threads for now. Note that we cannot just remove bpstats |
f431efe5 PA |
13981 | pointing at bpt from the stop_bpstat list entirely, as breakpoint |
13982 | commands are associated with the bpstat; if we remove it here, | |
13983 | then the later call to bpstat_do_actions (&stop_bpstat); in | |
13984 | event-top.c won't do anything, and temporary breakpoints with | |
13985 | commands won't work. */ | |
13986 | ||
13987 | iterate_over_threads (bpstat_remove_breakpoint_callback, bpt); | |
13988 | ||
4a64f543 MS |
13989 | /* Now that breakpoint is removed from breakpoint list, update the |
13990 | global location list. This will remove locations that used to | |
13991 | belong to this breakpoint. Do this before freeing the breakpoint | |
13992 | itself, since remove_breakpoint looks at location's owner. It | |
13993 | might be better design to have location completely | |
13994 | self-contained, but it's not the case now. */ | |
b60e7edf | 13995 | update_global_location_list (0); |
74960c60 | 13996 | |
348d480f | 13997 | bpt->ops->dtor (bpt); |
4a64f543 MS |
13998 | /* On the chance that someone will soon try again to delete this |
13999 | same bp, we mark it as deleted before freeing its storage. */ | |
c906108c | 14000 | bpt->type = bp_none; |
b8c9b27d | 14001 | xfree (bpt); |
c906108c SS |
14002 | } |
14003 | ||
4d6140d9 AC |
14004 | static void |
14005 | do_delete_breakpoint_cleanup (void *b) | |
14006 | { | |
14007 | delete_breakpoint (b); | |
14008 | } | |
14009 | ||
14010 | struct cleanup * | |
14011 | make_cleanup_delete_breakpoint (struct breakpoint *b) | |
14012 | { | |
14013 | return make_cleanup (do_delete_breakpoint_cleanup, b); | |
14014 | } | |
14015 | ||
51be5b68 PA |
14016 | /* Iterator function to call a user-provided callback function once |
14017 | for each of B and its related breakpoints. */ | |
14018 | ||
14019 | static void | |
14020 | iterate_over_related_breakpoints (struct breakpoint *b, | |
14021 | void (*function) (struct breakpoint *, | |
14022 | void *), | |
14023 | void *data) | |
14024 | { | |
14025 | struct breakpoint *related; | |
14026 | ||
14027 | related = b; | |
14028 | do | |
14029 | { | |
14030 | struct breakpoint *next; | |
14031 | ||
14032 | /* FUNCTION may delete RELATED. */ | |
14033 | next = related->related_breakpoint; | |
14034 | ||
14035 | if (next == related) | |
14036 | { | |
14037 | /* RELATED is the last ring entry. */ | |
14038 | function (related, data); | |
14039 | ||
14040 | /* FUNCTION may have deleted it, so we'd never reach back to | |
14041 | B. There's nothing left to do anyway, so just break | |
14042 | out. */ | |
14043 | break; | |
14044 | } | |
14045 | else | |
14046 | function (related, data); | |
14047 | ||
14048 | related = next; | |
14049 | } | |
14050 | while (related != b); | |
14051 | } | |
95a42b64 TT |
14052 | |
14053 | static void | |
14054 | do_delete_breakpoint (struct breakpoint *b, void *ignore) | |
14055 | { | |
14056 | delete_breakpoint (b); | |
14057 | } | |
14058 | ||
51be5b68 PA |
14059 | /* A callback for map_breakpoint_numbers that calls |
14060 | delete_breakpoint. */ | |
14061 | ||
14062 | static void | |
14063 | do_map_delete_breakpoint (struct breakpoint *b, void *ignore) | |
14064 | { | |
14065 | iterate_over_related_breakpoints (b, do_delete_breakpoint, NULL); | |
14066 | } | |
14067 | ||
c906108c | 14068 | void |
fba45db2 | 14069 | delete_command (char *arg, int from_tty) |
c906108c | 14070 | { |
35df4500 | 14071 | struct breakpoint *b, *b_tmp; |
c906108c | 14072 | |
ea9365bb TT |
14073 | dont_repeat (); |
14074 | ||
c906108c SS |
14075 | if (arg == 0) |
14076 | { | |
14077 | int breaks_to_delete = 0; | |
14078 | ||
46c6471b PA |
14079 | /* Delete all breakpoints if no argument. Do not delete |
14080 | internal breakpoints, these have to be deleted with an | |
14081 | explicit breakpoint number argument. */ | |
c5aa993b | 14082 | ALL_BREAKPOINTS (b) |
46c6471b | 14083 | if (user_breakpoint_p (b)) |
973d738b DJ |
14084 | { |
14085 | breaks_to_delete = 1; | |
14086 | break; | |
14087 | } | |
c906108c SS |
14088 | |
14089 | /* Ask user only if there are some breakpoints to delete. */ | |
14090 | if (!from_tty | |
e2e0b3e5 | 14091 | || (breaks_to_delete && query (_("Delete all breakpoints? ")))) |
c906108c | 14092 | { |
35df4500 | 14093 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
46c6471b | 14094 | if (user_breakpoint_p (b)) |
c5aa993b | 14095 | delete_breakpoint (b); |
c906108c SS |
14096 | } |
14097 | } | |
14098 | else | |
51be5b68 | 14099 | map_breakpoint_numbers (arg, do_map_delete_breakpoint, NULL); |
c906108c SS |
14100 | } |
14101 | ||
0d381245 VP |
14102 | static int |
14103 | all_locations_are_pending (struct bp_location *loc) | |
fe3f5fa8 | 14104 | { |
0d381245 | 14105 | for (; loc; loc = loc->next) |
8645ff69 UW |
14106 | if (!loc->shlib_disabled |
14107 | && !loc->pspace->executing_startup) | |
0d381245 VP |
14108 | return 0; |
14109 | return 1; | |
fe3f5fa8 VP |
14110 | } |
14111 | ||
776592bf DE |
14112 | /* Subroutine of update_breakpoint_locations to simplify it. |
14113 | Return non-zero if multiple fns in list LOC have the same name. | |
14114 | Null names are ignored. */ | |
14115 | ||
14116 | static int | |
14117 | ambiguous_names_p (struct bp_location *loc) | |
14118 | { | |
14119 | struct bp_location *l; | |
14120 | htab_t htab = htab_create_alloc (13, htab_hash_string, | |
cc59ec59 MS |
14121 | (int (*) (const void *, |
14122 | const void *)) streq, | |
776592bf DE |
14123 | NULL, xcalloc, xfree); |
14124 | ||
14125 | for (l = loc; l != NULL; l = l->next) | |
14126 | { | |
14127 | const char **slot; | |
14128 | const char *name = l->function_name; | |
14129 | ||
14130 | /* Allow for some names to be NULL, ignore them. */ | |
14131 | if (name == NULL) | |
14132 | continue; | |
14133 | ||
14134 | slot = (const char **) htab_find_slot (htab, (const void *) name, | |
14135 | INSERT); | |
4a64f543 MS |
14136 | /* NOTE: We can assume slot != NULL here because xcalloc never |
14137 | returns NULL. */ | |
776592bf DE |
14138 | if (*slot != NULL) |
14139 | { | |
14140 | htab_delete (htab); | |
14141 | return 1; | |
14142 | } | |
14143 | *slot = name; | |
14144 | } | |
14145 | ||
14146 | htab_delete (htab); | |
14147 | return 0; | |
14148 | } | |
14149 | ||
0fb4aa4b PA |
14150 | /* When symbols change, it probably means the sources changed as well, |
14151 | and it might mean the static tracepoint markers are no longer at | |
14152 | the same address or line numbers they used to be at last we | |
14153 | checked. Losing your static tracepoints whenever you rebuild is | |
14154 | undesirable. This function tries to resync/rematch gdb static | |
14155 | tracepoints with the markers on the target, for static tracepoints | |
14156 | that have not been set by marker id. Static tracepoint that have | |
14157 | been set by marker id are reset by marker id in breakpoint_re_set. | |
14158 | The heuristic is: | |
14159 | ||
14160 | 1) For a tracepoint set at a specific address, look for a marker at | |
14161 | the old PC. If one is found there, assume to be the same marker. | |
14162 | If the name / string id of the marker found is different from the | |
14163 | previous known name, assume that means the user renamed the marker | |
14164 | in the sources, and output a warning. | |
14165 | ||
14166 | 2) For a tracepoint set at a given line number, look for a marker | |
14167 | at the new address of the old line number. If one is found there, | |
14168 | assume to be the same marker. If the name / string id of the | |
14169 | marker found is different from the previous known name, assume that | |
14170 | means the user renamed the marker in the sources, and output a | |
14171 | warning. | |
14172 | ||
14173 | 3) If a marker is no longer found at the same address or line, it | |
14174 | may mean the marker no longer exists. But it may also just mean | |
14175 | the code changed a bit. Maybe the user added a few lines of code | |
14176 | that made the marker move up or down (in line number terms). Ask | |
14177 | the target for info about the marker with the string id as we knew | |
14178 | it. If found, update line number and address in the matching | |
14179 | static tracepoint. This will get confused if there's more than one | |
14180 | marker with the same ID (possible in UST, although unadvised | |
14181 | precisely because it confuses tools). */ | |
14182 | ||
14183 | static struct symtab_and_line | |
14184 | update_static_tracepoint (struct breakpoint *b, struct symtab_and_line sal) | |
14185 | { | |
d9b3f62e | 14186 | struct tracepoint *tp = (struct tracepoint *) b; |
0fb4aa4b PA |
14187 | struct static_tracepoint_marker marker; |
14188 | CORE_ADDR pc; | |
0fb4aa4b PA |
14189 | |
14190 | pc = sal.pc; | |
14191 | if (sal.line) | |
14192 | find_line_pc (sal.symtab, sal.line, &pc); | |
14193 | ||
14194 | if (target_static_tracepoint_marker_at (pc, &marker)) | |
14195 | { | |
d9b3f62e | 14196 | if (strcmp (tp->static_trace_marker_id, marker.str_id) != 0) |
0fb4aa4b PA |
14197 | warning (_("static tracepoint %d changed probed marker from %s to %s"), |
14198 | b->number, | |
d9b3f62e | 14199 | tp->static_trace_marker_id, marker.str_id); |
0fb4aa4b | 14200 | |
d9b3f62e PA |
14201 | xfree (tp->static_trace_marker_id); |
14202 | tp->static_trace_marker_id = xstrdup (marker.str_id); | |
0fb4aa4b PA |
14203 | release_static_tracepoint_marker (&marker); |
14204 | ||
14205 | return sal; | |
14206 | } | |
14207 | ||
14208 | /* Old marker wasn't found on target at lineno. Try looking it up | |
14209 | by string ID. */ | |
14210 | if (!sal.explicit_pc | |
14211 | && sal.line != 0 | |
14212 | && sal.symtab != NULL | |
d9b3f62e | 14213 | && tp->static_trace_marker_id != NULL) |
0fb4aa4b PA |
14214 | { |
14215 | VEC(static_tracepoint_marker_p) *markers; | |
14216 | ||
14217 | markers | |
d9b3f62e | 14218 | = target_static_tracepoint_markers_by_strid (tp->static_trace_marker_id); |
0fb4aa4b PA |
14219 | |
14220 | if (!VEC_empty(static_tracepoint_marker_p, markers)) | |
14221 | { | |
80e1d417 | 14222 | struct symtab_and_line sal2; |
0fb4aa4b | 14223 | struct symbol *sym; |
80e1d417 | 14224 | struct static_tracepoint_marker *tpmarker; |
79a45e25 | 14225 | struct ui_out *uiout = current_uiout; |
0fb4aa4b | 14226 | |
80e1d417 | 14227 | tpmarker = VEC_index (static_tracepoint_marker_p, markers, 0); |
0fb4aa4b | 14228 | |
d9b3f62e | 14229 | xfree (tp->static_trace_marker_id); |
80e1d417 | 14230 | tp->static_trace_marker_id = xstrdup (tpmarker->str_id); |
0fb4aa4b PA |
14231 | |
14232 | warning (_("marker for static tracepoint %d (%s) not " | |
14233 | "found at previous line number"), | |
d9b3f62e | 14234 | b->number, tp->static_trace_marker_id); |
0fb4aa4b | 14235 | |
80e1d417 | 14236 | init_sal (&sal2); |
0fb4aa4b | 14237 | |
80e1d417 | 14238 | sal2.pc = tpmarker->address; |
0fb4aa4b | 14239 | |
80e1d417 AS |
14240 | sal2 = find_pc_line (tpmarker->address, 0); |
14241 | sym = find_pc_sect_function (tpmarker->address, NULL); | |
0fb4aa4b PA |
14242 | ui_out_text (uiout, "Now in "); |
14243 | if (sym) | |
14244 | { | |
14245 | ui_out_field_string (uiout, "func", | |
14246 | SYMBOL_PRINT_NAME (sym)); | |
14247 | ui_out_text (uiout, " at "); | |
14248 | } | |
05cba821 JK |
14249 | ui_out_field_string (uiout, "file", |
14250 | symtab_to_filename_for_display (sal2.symtab)); | |
0fb4aa4b PA |
14251 | ui_out_text (uiout, ":"); |
14252 | ||
14253 | if (ui_out_is_mi_like_p (uiout)) | |
14254 | { | |
0b0865da | 14255 | const char *fullname = symtab_to_fullname (sal2.symtab); |
0fb4aa4b | 14256 | |
f35a17b5 | 14257 | ui_out_field_string (uiout, "fullname", fullname); |
0fb4aa4b PA |
14258 | } |
14259 | ||
80e1d417 | 14260 | ui_out_field_int (uiout, "line", sal2.line); |
0fb4aa4b PA |
14261 | ui_out_text (uiout, "\n"); |
14262 | ||
80e1d417 | 14263 | b->loc->line_number = sal2.line; |
2f202fde | 14264 | b->loc->symtab = sym != NULL ? sal2.symtab : NULL; |
0fb4aa4b PA |
14265 | |
14266 | xfree (b->addr_string); | |
14267 | b->addr_string = xstrprintf ("%s:%d", | |
05cba821 | 14268 | symtab_to_filename_for_display (sal2.symtab), |
f8eba3c6 | 14269 | b->loc->line_number); |
0fb4aa4b PA |
14270 | |
14271 | /* Might be nice to check if function changed, and warn if | |
14272 | so. */ | |
14273 | ||
80e1d417 | 14274 | release_static_tracepoint_marker (tpmarker); |
0fb4aa4b PA |
14275 | } |
14276 | } | |
14277 | return sal; | |
14278 | } | |
14279 | ||
8d3788bd VP |
14280 | /* Returns 1 iff locations A and B are sufficiently same that |
14281 | we don't need to report breakpoint as changed. */ | |
14282 | ||
14283 | static int | |
14284 | locations_are_equal (struct bp_location *a, struct bp_location *b) | |
14285 | { | |
14286 | while (a && b) | |
14287 | { | |
14288 | if (a->address != b->address) | |
14289 | return 0; | |
14290 | ||
14291 | if (a->shlib_disabled != b->shlib_disabled) | |
14292 | return 0; | |
14293 | ||
14294 | if (a->enabled != b->enabled) | |
14295 | return 0; | |
14296 | ||
14297 | a = a->next; | |
14298 | b = b->next; | |
14299 | } | |
14300 | ||
14301 | if ((a == NULL) != (b == NULL)) | |
14302 | return 0; | |
14303 | ||
14304 | return 1; | |
14305 | } | |
14306 | ||
f1310107 TJB |
14307 | /* Create new breakpoint locations for B (a hardware or software breakpoint) |
14308 | based on SALS and SALS_END. If SALS_END.NELTS is not zero, then B is | |
14309 | a ranged breakpoint. */ | |
14310 | ||
0e30163f | 14311 | void |
0d381245 | 14312 | update_breakpoint_locations (struct breakpoint *b, |
f1310107 TJB |
14313 | struct symtabs_and_lines sals, |
14314 | struct symtabs_and_lines sals_end) | |
fe3f5fa8 VP |
14315 | { |
14316 | int i; | |
0d381245 VP |
14317 | struct bp_location *existing_locations = b->loc; |
14318 | ||
f8eba3c6 TT |
14319 | if (sals_end.nelts != 0 && (sals.nelts != 1 || sals_end.nelts != 1)) |
14320 | { | |
14321 | /* Ranged breakpoints have only one start location and one end | |
14322 | location. */ | |
14323 | b->enable_state = bp_disabled; | |
14324 | update_global_location_list (1); | |
14325 | printf_unfiltered (_("Could not reset ranged breakpoint %d: " | |
14326 | "multiple locations found\n"), | |
14327 | b->number); | |
14328 | return; | |
14329 | } | |
f1310107 | 14330 | |
4a64f543 MS |
14331 | /* If there's no new locations, and all existing locations are |
14332 | pending, don't do anything. This optimizes the common case where | |
14333 | all locations are in the same shared library, that was unloaded. | |
14334 | We'd like to retain the location, so that when the library is | |
14335 | loaded again, we don't loose the enabled/disabled status of the | |
14336 | individual locations. */ | |
0d381245 | 14337 | if (all_locations_are_pending (existing_locations) && sals.nelts == 0) |
fe3f5fa8 VP |
14338 | return; |
14339 | ||
fe3f5fa8 VP |
14340 | b->loc = NULL; |
14341 | ||
0d381245 | 14342 | for (i = 0; i < sals.nelts; ++i) |
fe3f5fa8 | 14343 | { |
f8eba3c6 TT |
14344 | struct bp_location *new_loc; |
14345 | ||
14346 | switch_to_program_space_and_thread (sals.sals[i].pspace); | |
14347 | ||
14348 | new_loc = add_location_to_breakpoint (b, &(sals.sals[i])); | |
fe3f5fa8 | 14349 | |
0d381245 VP |
14350 | /* Reparse conditions, they might contain references to the |
14351 | old symtab. */ | |
14352 | if (b->cond_string != NULL) | |
14353 | { | |
bbc13ae3 | 14354 | const char *s; |
bfd189b1 | 14355 | volatile struct gdb_exception e; |
fe3f5fa8 | 14356 | |
0d381245 VP |
14357 | s = b->cond_string; |
14358 | TRY_CATCH (e, RETURN_MASK_ERROR) | |
14359 | { | |
1bb9788d TT |
14360 | new_loc->cond = parse_exp_1 (&s, sals.sals[i].pc, |
14361 | block_for_pc (sals.sals[i].pc), | |
0d381245 VP |
14362 | 0); |
14363 | } | |
14364 | if (e.reason < 0) | |
14365 | { | |
3e43a32a MS |
14366 | warning (_("failed to reevaluate condition " |
14367 | "for breakpoint %d: %s"), | |
0d381245 VP |
14368 | b->number, e.message); |
14369 | new_loc->enabled = 0; | |
14370 | } | |
14371 | } | |
fe3f5fa8 | 14372 | |
f1310107 TJB |
14373 | if (sals_end.nelts) |
14374 | { | |
14375 | CORE_ADDR end = find_breakpoint_range_end (sals_end.sals[0]); | |
14376 | ||
14377 | new_loc->length = end - sals.sals[0].pc + 1; | |
14378 | } | |
0d381245 | 14379 | } |
fe3f5fa8 | 14380 | |
514f746b AR |
14381 | /* Update locations of permanent breakpoints. */ |
14382 | if (b->enable_state == bp_permanent) | |
14383 | make_breakpoint_permanent (b); | |
14384 | ||
4a64f543 MS |
14385 | /* If possible, carry over 'disable' status from existing |
14386 | breakpoints. */ | |
0d381245 VP |
14387 | { |
14388 | struct bp_location *e = existing_locations; | |
776592bf DE |
14389 | /* If there are multiple breakpoints with the same function name, |
14390 | e.g. for inline functions, comparing function names won't work. | |
14391 | Instead compare pc addresses; this is just a heuristic as things | |
14392 | may have moved, but in practice it gives the correct answer | |
14393 | often enough until a better solution is found. */ | |
14394 | int have_ambiguous_names = ambiguous_names_p (b->loc); | |
14395 | ||
0d381245 VP |
14396 | for (; e; e = e->next) |
14397 | { | |
14398 | if (!e->enabled && e->function_name) | |
14399 | { | |
14400 | struct bp_location *l = b->loc; | |
776592bf DE |
14401 | if (have_ambiguous_names) |
14402 | { | |
14403 | for (; l; l = l->next) | |
f1310107 | 14404 | if (breakpoint_locations_match (e, l)) |
776592bf DE |
14405 | { |
14406 | l->enabled = 0; | |
14407 | break; | |
14408 | } | |
14409 | } | |
14410 | else | |
14411 | { | |
14412 | for (; l; l = l->next) | |
14413 | if (l->function_name | |
14414 | && strcmp (e->function_name, l->function_name) == 0) | |
14415 | { | |
14416 | l->enabled = 0; | |
14417 | break; | |
14418 | } | |
14419 | } | |
0d381245 VP |
14420 | } |
14421 | } | |
14422 | } | |
fe3f5fa8 | 14423 | |
8d3788bd VP |
14424 | if (!locations_are_equal (existing_locations, b->loc)) |
14425 | observer_notify_breakpoint_modified (b); | |
14426 | ||
b60e7edf | 14427 | update_global_location_list (1); |
fe3f5fa8 VP |
14428 | } |
14429 | ||
ef23e705 TJB |
14430 | /* Find the SaL locations corresponding to the given ADDR_STRING. |
14431 | On return, FOUND will be 1 if any SaL was found, zero otherwise. */ | |
14432 | ||
14433 | static struct symtabs_and_lines | |
14434 | addr_string_to_sals (struct breakpoint *b, char *addr_string, int *found) | |
14435 | { | |
14436 | char *s; | |
02d20e4a | 14437 | struct symtabs_and_lines sals = {0}; |
f8eba3c6 | 14438 | volatile struct gdb_exception e; |
ef23e705 | 14439 | |
983af33b | 14440 | gdb_assert (b->ops != NULL); |
ef23e705 | 14441 | s = addr_string; |
ef23e705 TJB |
14442 | |
14443 | TRY_CATCH (e, RETURN_MASK_ERROR) | |
14444 | { | |
983af33b | 14445 | b->ops->decode_linespec (b, &s, &sals); |
ef23e705 TJB |
14446 | } |
14447 | if (e.reason < 0) | |
14448 | { | |
14449 | int not_found_and_ok = 0; | |
14450 | /* For pending breakpoints, it's expected that parsing will | |
14451 | fail until the right shared library is loaded. User has | |
14452 | already told to create pending breakpoints and don't need | |
14453 | extra messages. If breakpoint is in bp_shlib_disabled | |
14454 | state, then user already saw the message about that | |
14455 | breakpoint being disabled, and don't want to see more | |
14456 | errors. */ | |
58438ac1 | 14457 | if (e.error == NOT_FOUND_ERROR |
ef23e705 TJB |
14458 | && (b->condition_not_parsed |
14459 | || (b->loc && b->loc->shlib_disabled) | |
f8eba3c6 | 14460 | || (b->loc && b->loc->pspace->executing_startup) |
ef23e705 TJB |
14461 | || b->enable_state == bp_disabled)) |
14462 | not_found_and_ok = 1; | |
14463 | ||
14464 | if (!not_found_and_ok) | |
14465 | { | |
14466 | /* We surely don't want to warn about the same breakpoint | |
14467 | 10 times. One solution, implemented here, is disable | |
14468 | the breakpoint on error. Another solution would be to | |
14469 | have separate 'warning emitted' flag. Since this | |
14470 | happens only when a binary has changed, I don't know | |
14471 | which approach is better. */ | |
14472 | b->enable_state = bp_disabled; | |
14473 | throw_exception (e); | |
14474 | } | |
14475 | } | |
14476 | ||
58438ac1 | 14477 | if (e.reason == 0 || e.error != NOT_FOUND_ERROR) |
ef23e705 | 14478 | { |
f8eba3c6 | 14479 | int i; |
ef23e705 | 14480 | |
f8eba3c6 TT |
14481 | for (i = 0; i < sals.nelts; ++i) |
14482 | resolve_sal_pc (&sals.sals[i]); | |
ef23e705 TJB |
14483 | if (b->condition_not_parsed && s && s[0]) |
14484 | { | |
ed1d1739 KS |
14485 | char *cond_string, *extra_string; |
14486 | int thread, task; | |
ef23e705 TJB |
14487 | |
14488 | find_condition_and_thread (s, sals.sals[0].pc, | |
e7e0cddf SS |
14489 | &cond_string, &thread, &task, |
14490 | &extra_string); | |
ef23e705 TJB |
14491 | if (cond_string) |
14492 | b->cond_string = cond_string; | |
14493 | b->thread = thread; | |
14494 | b->task = task; | |
e7e0cddf SS |
14495 | if (extra_string) |
14496 | b->extra_string = extra_string; | |
ef23e705 TJB |
14497 | b->condition_not_parsed = 0; |
14498 | } | |
14499 | ||
983af33b | 14500 | if (b->type == bp_static_tracepoint && !strace_marker_p (b)) |
ef23e705 | 14501 | sals.sals[0] = update_static_tracepoint (b, sals.sals[0]); |
ef23e705 | 14502 | |
58438ac1 TT |
14503 | *found = 1; |
14504 | } | |
14505 | else | |
14506 | *found = 0; | |
ef23e705 TJB |
14507 | |
14508 | return sals; | |
14509 | } | |
14510 | ||
348d480f PA |
14511 | /* The default re_set method, for typical hardware or software |
14512 | breakpoints. Reevaluate the breakpoint and recreate its | |
14513 | locations. */ | |
14514 | ||
14515 | static void | |
28010a5d | 14516 | breakpoint_re_set_default (struct breakpoint *b) |
ef23e705 TJB |
14517 | { |
14518 | int found; | |
f1310107 | 14519 | struct symtabs_and_lines sals, sals_end; |
ef23e705 | 14520 | struct symtabs_and_lines expanded = {0}; |
f1310107 | 14521 | struct symtabs_and_lines expanded_end = {0}; |
ef23e705 TJB |
14522 | |
14523 | sals = addr_string_to_sals (b, b->addr_string, &found); | |
14524 | if (found) | |
14525 | { | |
14526 | make_cleanup (xfree, sals.sals); | |
f8eba3c6 | 14527 | expanded = sals; |
ef23e705 TJB |
14528 | } |
14529 | ||
f1310107 TJB |
14530 | if (b->addr_string_range_end) |
14531 | { | |
14532 | sals_end = addr_string_to_sals (b, b->addr_string_range_end, &found); | |
14533 | if (found) | |
14534 | { | |
14535 | make_cleanup (xfree, sals_end.sals); | |
f8eba3c6 | 14536 | expanded_end = sals_end; |
f1310107 TJB |
14537 | } |
14538 | } | |
14539 | ||
14540 | update_breakpoint_locations (b, expanded, expanded_end); | |
28010a5d PA |
14541 | } |
14542 | ||
983af33b SDJ |
14543 | /* Default method for creating SALs from an address string. It basically |
14544 | calls parse_breakpoint_sals. Return 1 for success, zero for failure. */ | |
14545 | ||
14546 | static void | |
14547 | create_sals_from_address_default (char **arg, | |
14548 | struct linespec_result *canonical, | |
14549 | enum bptype type_wanted, | |
14550 | char *addr_start, char **copy_arg) | |
14551 | { | |
14552 | parse_breakpoint_sals (arg, canonical); | |
14553 | } | |
14554 | ||
14555 | /* Call create_breakpoints_sal for the given arguments. This is the default | |
14556 | function for the `create_breakpoints_sal' method of | |
14557 | breakpoint_ops. */ | |
14558 | ||
14559 | static void | |
14560 | create_breakpoints_sal_default (struct gdbarch *gdbarch, | |
14561 | struct linespec_result *canonical, | |
983af33b | 14562 | char *cond_string, |
e7e0cddf | 14563 | char *extra_string, |
983af33b SDJ |
14564 | enum bptype type_wanted, |
14565 | enum bpdisp disposition, | |
14566 | int thread, | |
14567 | int task, int ignore_count, | |
14568 | const struct breakpoint_ops *ops, | |
14569 | int from_tty, int enabled, | |
44f238bb | 14570 | int internal, unsigned flags) |
983af33b SDJ |
14571 | { |
14572 | create_breakpoints_sal (gdbarch, canonical, cond_string, | |
e7e0cddf | 14573 | extra_string, |
983af33b SDJ |
14574 | type_wanted, disposition, |
14575 | thread, task, ignore_count, ops, from_tty, | |
44f238bb | 14576 | enabled, internal, flags); |
983af33b SDJ |
14577 | } |
14578 | ||
14579 | /* Decode the line represented by S by calling decode_line_full. This is the | |
14580 | default function for the `decode_linespec' method of breakpoint_ops. */ | |
14581 | ||
14582 | static void | |
14583 | decode_linespec_default (struct breakpoint *b, char **s, | |
14584 | struct symtabs_and_lines *sals) | |
14585 | { | |
14586 | struct linespec_result canonical; | |
14587 | ||
14588 | init_linespec_result (&canonical); | |
14589 | decode_line_full (s, DECODE_LINE_FUNFIRSTLINE, | |
14590 | (struct symtab *) NULL, 0, | |
14591 | &canonical, multiple_symbols_all, | |
14592 | b->filter); | |
14593 | ||
14594 | /* We should get 0 or 1 resulting SALs. */ | |
14595 | gdb_assert (VEC_length (linespec_sals, canonical.sals) < 2); | |
14596 | ||
14597 | if (VEC_length (linespec_sals, canonical.sals) > 0) | |
14598 | { | |
14599 | struct linespec_sals *lsal; | |
14600 | ||
14601 | lsal = VEC_index (linespec_sals, canonical.sals, 0); | |
14602 | *sals = lsal->sals; | |
14603 | /* Arrange it so the destructor does not free the | |
14604 | contents. */ | |
14605 | lsal->sals.sals = NULL; | |
14606 | } | |
14607 | ||
14608 | destroy_linespec_result (&canonical); | |
14609 | } | |
14610 | ||
28010a5d PA |
14611 | /* Prepare the global context for a re-set of breakpoint B. */ |
14612 | ||
14613 | static struct cleanup * | |
14614 | prepare_re_set_context (struct breakpoint *b) | |
14615 | { | |
14616 | struct cleanup *cleanups; | |
14617 | ||
14618 | input_radix = b->input_radix; | |
14619 | cleanups = save_current_space_and_thread (); | |
f8eba3c6 TT |
14620 | if (b->pspace != NULL) |
14621 | switch_to_program_space_and_thread (b->pspace); | |
28010a5d PA |
14622 | set_language (b->language); |
14623 | ||
14624 | return cleanups; | |
ef23e705 TJB |
14625 | } |
14626 | ||
c906108c SS |
14627 | /* Reset a breakpoint given it's struct breakpoint * BINT. |
14628 | The value we return ends up being the return value from catch_errors. | |
14629 | Unused in this case. */ | |
14630 | ||
14631 | static int | |
4efb68b1 | 14632 | breakpoint_re_set_one (void *bint) |
c906108c | 14633 | { |
4a64f543 | 14634 | /* Get past catch_errs. */ |
53a5351d | 14635 | struct breakpoint *b = (struct breakpoint *) bint; |
348d480f | 14636 | struct cleanup *cleanups; |
c906108c | 14637 | |
348d480f PA |
14638 | cleanups = prepare_re_set_context (b); |
14639 | b->ops->re_set (b); | |
14640 | do_cleanups (cleanups); | |
c906108c SS |
14641 | return 0; |
14642 | } | |
14643 | ||
69de3c6a | 14644 | /* Re-set all breakpoints after symbols have been re-loaded. */ |
c906108c | 14645 | void |
69de3c6a | 14646 | breakpoint_re_set (void) |
c906108c | 14647 | { |
35df4500 | 14648 | struct breakpoint *b, *b_tmp; |
c906108c SS |
14649 | enum language save_language; |
14650 | int save_input_radix; | |
6c95b8df | 14651 | struct cleanup *old_chain; |
c5aa993b | 14652 | |
c906108c SS |
14653 | save_language = current_language->la_language; |
14654 | save_input_radix = input_radix; | |
6c95b8df PA |
14655 | old_chain = save_current_program_space (); |
14656 | ||
35df4500 | 14657 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
c5aa993b | 14658 | { |
4a64f543 | 14659 | /* Format possible error msg. */ |
fe3f5fa8 | 14660 | char *message = xstrprintf ("Error in re-setting breakpoint %d: ", |
9ebf4acf AC |
14661 | b->number); |
14662 | struct cleanup *cleanups = make_cleanup (xfree, message); | |
c5aa993b | 14663 | catch_errors (breakpoint_re_set_one, b, message, RETURN_MASK_ALL); |
9ebf4acf | 14664 | do_cleanups (cleanups); |
c5aa993b | 14665 | } |
c906108c SS |
14666 | set_language (save_language); |
14667 | input_radix = save_input_radix; | |
e62c965a | 14668 | |
0756c555 | 14669 | jit_breakpoint_re_set (); |
4efc6507 | 14670 | |
6c95b8df PA |
14671 | do_cleanups (old_chain); |
14672 | ||
af02033e PP |
14673 | create_overlay_event_breakpoint (); |
14674 | create_longjmp_master_breakpoint (); | |
14675 | create_std_terminate_master_breakpoint (); | |
186c406b | 14676 | create_exception_master_breakpoint (); |
c906108c SS |
14677 | } |
14678 | \f | |
c906108c SS |
14679 | /* Reset the thread number of this breakpoint: |
14680 | ||
14681 | - If the breakpoint is for all threads, leave it as-is. | |
4a64f543 | 14682 | - Else, reset it to the current thread for inferior_ptid. */ |
c906108c | 14683 | void |
fba45db2 | 14684 | breakpoint_re_set_thread (struct breakpoint *b) |
c906108c SS |
14685 | { |
14686 | if (b->thread != -1) | |
14687 | { | |
39f77062 KB |
14688 | if (in_thread_list (inferior_ptid)) |
14689 | b->thread = pid_to_thread_id (inferior_ptid); | |
6c95b8df PA |
14690 | |
14691 | /* We're being called after following a fork. The new fork is | |
14692 | selected as current, and unless this was a vfork will have a | |
14693 | different program space from the original thread. Reset that | |
14694 | as well. */ | |
14695 | b->loc->pspace = current_program_space; | |
c906108c SS |
14696 | } |
14697 | } | |
14698 | ||
03ac34d5 MS |
14699 | /* Set ignore-count of breakpoint number BPTNUM to COUNT. |
14700 | If from_tty is nonzero, it prints a message to that effect, | |
14701 | which ends with a period (no newline). */ | |
14702 | ||
c906108c | 14703 | void |
fba45db2 | 14704 | set_ignore_count (int bptnum, int count, int from_tty) |
c906108c | 14705 | { |
52f0bd74 | 14706 | struct breakpoint *b; |
c906108c SS |
14707 | |
14708 | if (count < 0) | |
14709 | count = 0; | |
14710 | ||
14711 | ALL_BREAKPOINTS (b) | |
14712 | if (b->number == bptnum) | |
c5aa993b | 14713 | { |
d77f58be SS |
14714 | if (is_tracepoint (b)) |
14715 | { | |
14716 | if (from_tty && count != 0) | |
14717 | printf_filtered (_("Ignore count ignored for tracepoint %d."), | |
14718 | bptnum); | |
14719 | return; | |
14720 | } | |
14721 | ||
c5aa993b | 14722 | b->ignore_count = count; |
221ea385 KS |
14723 | if (from_tty) |
14724 | { | |
14725 | if (count == 0) | |
3e43a32a MS |
14726 | printf_filtered (_("Will stop next time " |
14727 | "breakpoint %d is reached."), | |
221ea385 KS |
14728 | bptnum); |
14729 | else if (count == 1) | |
a3f17187 | 14730 | printf_filtered (_("Will ignore next crossing of breakpoint %d."), |
221ea385 KS |
14731 | bptnum); |
14732 | else | |
3e43a32a MS |
14733 | printf_filtered (_("Will ignore next %d " |
14734 | "crossings of breakpoint %d."), | |
221ea385 KS |
14735 | count, bptnum); |
14736 | } | |
8d3788bd | 14737 | observer_notify_breakpoint_modified (b); |
c5aa993b JM |
14738 | return; |
14739 | } | |
c906108c | 14740 | |
8a3fe4f8 | 14741 | error (_("No breakpoint number %d."), bptnum); |
c906108c SS |
14742 | } |
14743 | ||
c906108c SS |
14744 | /* Command to set ignore-count of breakpoint N to COUNT. */ |
14745 | ||
14746 | static void | |
fba45db2 | 14747 | ignore_command (char *args, int from_tty) |
c906108c SS |
14748 | { |
14749 | char *p = args; | |
52f0bd74 | 14750 | int num; |
c906108c SS |
14751 | |
14752 | if (p == 0) | |
e2e0b3e5 | 14753 | error_no_arg (_("a breakpoint number")); |
c5aa993b | 14754 | |
c906108c | 14755 | num = get_number (&p); |
5c44784c | 14756 | if (num == 0) |
8a3fe4f8 | 14757 | error (_("bad breakpoint number: '%s'"), args); |
c906108c | 14758 | if (*p == 0) |
8a3fe4f8 | 14759 | error (_("Second argument (specified ignore-count) is missing.")); |
c906108c SS |
14760 | |
14761 | set_ignore_count (num, | |
14762 | longest_to_int (value_as_long (parse_and_eval (p))), | |
14763 | from_tty); | |
221ea385 KS |
14764 | if (from_tty) |
14765 | printf_filtered ("\n"); | |
c906108c SS |
14766 | } |
14767 | \f | |
14768 | /* Call FUNCTION on each of the breakpoints | |
14769 | whose numbers are given in ARGS. */ | |
14770 | ||
14771 | static void | |
95a42b64 TT |
14772 | map_breakpoint_numbers (char *args, void (*function) (struct breakpoint *, |
14773 | void *), | |
14774 | void *data) | |
c906108c | 14775 | { |
52f0bd74 AC |
14776 | int num; |
14777 | struct breakpoint *b, *tmp; | |
11cf8741 | 14778 | int match; |
197f0a60 | 14779 | struct get_number_or_range_state state; |
c906108c | 14780 | |
197f0a60 | 14781 | if (args == 0) |
e2e0b3e5 | 14782 | error_no_arg (_("one or more breakpoint numbers")); |
c906108c | 14783 | |
197f0a60 TT |
14784 | init_number_or_range (&state, args); |
14785 | ||
14786 | while (!state.finished) | |
c906108c | 14787 | { |
197f0a60 TT |
14788 | char *p = state.string; |
14789 | ||
11cf8741 | 14790 | match = 0; |
c5aa993b | 14791 | |
197f0a60 | 14792 | num = get_number_or_range (&state); |
5c44784c | 14793 | if (num == 0) |
c5aa993b | 14794 | { |
8a3fe4f8 | 14795 | warning (_("bad breakpoint number at or near '%s'"), p); |
5c44784c JM |
14796 | } |
14797 | else | |
14798 | { | |
14799 | ALL_BREAKPOINTS_SAFE (b, tmp) | |
14800 | if (b->number == num) | |
14801 | { | |
11cf8741 | 14802 | match = 1; |
cdac0397 | 14803 | function (b, data); |
11cf8741 | 14804 | break; |
5c44784c | 14805 | } |
11cf8741 | 14806 | if (match == 0) |
a3f17187 | 14807 | printf_unfiltered (_("No breakpoint number %d.\n"), num); |
c5aa993b | 14808 | } |
c906108c SS |
14809 | } |
14810 | } | |
14811 | ||
0d381245 VP |
14812 | static struct bp_location * |
14813 | find_location_by_number (char *number) | |
14814 | { | |
14815 | char *dot = strchr (number, '.'); | |
14816 | char *p1; | |
14817 | int bp_num; | |
14818 | int loc_num; | |
14819 | struct breakpoint *b; | |
14820 | struct bp_location *loc; | |
14821 | ||
14822 | *dot = '\0'; | |
14823 | ||
14824 | p1 = number; | |
197f0a60 | 14825 | bp_num = get_number (&p1); |
0d381245 VP |
14826 | if (bp_num == 0) |
14827 | error (_("Bad breakpoint number '%s'"), number); | |
14828 | ||
14829 | ALL_BREAKPOINTS (b) | |
14830 | if (b->number == bp_num) | |
14831 | { | |
14832 | break; | |
14833 | } | |
14834 | ||
14835 | if (!b || b->number != bp_num) | |
14836 | error (_("Bad breakpoint number '%s'"), number); | |
14837 | ||
14838 | p1 = dot+1; | |
197f0a60 | 14839 | loc_num = get_number (&p1); |
0d381245 VP |
14840 | if (loc_num == 0) |
14841 | error (_("Bad breakpoint location number '%s'"), number); | |
14842 | ||
14843 | --loc_num; | |
14844 | loc = b->loc; | |
14845 | for (;loc_num && loc; --loc_num, loc = loc->next) | |
14846 | ; | |
14847 | if (!loc) | |
14848 | error (_("Bad breakpoint location number '%s'"), dot+1); | |
14849 | ||
14850 | return loc; | |
14851 | } | |
14852 | ||
14853 | ||
1900040c MS |
14854 | /* Set ignore-count of breakpoint number BPTNUM to COUNT. |
14855 | If from_tty is nonzero, it prints a message to that effect, | |
14856 | which ends with a period (no newline). */ | |
14857 | ||
c906108c | 14858 | void |
fba45db2 | 14859 | disable_breakpoint (struct breakpoint *bpt) |
c906108c SS |
14860 | { |
14861 | /* Never disable a watchpoint scope breakpoint; we want to | |
14862 | hit them when we leave scope so we can delete both the | |
14863 | watchpoint and its scope breakpoint at that time. */ | |
14864 | if (bpt->type == bp_watchpoint_scope) | |
14865 | return; | |
14866 | ||
c2c6d25f | 14867 | /* You can't disable permanent breakpoints. */ |
b5de0fa7 | 14868 | if (bpt->enable_state == bp_permanent) |
c2c6d25f JM |
14869 | return; |
14870 | ||
b5de0fa7 | 14871 | bpt->enable_state = bp_disabled; |
c906108c | 14872 | |
b775012e LM |
14873 | /* Mark breakpoint locations modified. */ |
14874 | mark_breakpoint_modified (bpt); | |
14875 | ||
d248b706 KY |
14876 | if (target_supports_enable_disable_tracepoint () |
14877 | && current_trace_status ()->running && is_tracepoint (bpt)) | |
14878 | { | |
14879 | struct bp_location *location; | |
14880 | ||
14881 | for (location = bpt->loc; location; location = location->next) | |
14882 | target_disable_tracepoint (location); | |
14883 | } | |
14884 | ||
b60e7edf | 14885 | update_global_location_list (0); |
c906108c | 14886 | |
8d3788bd | 14887 | observer_notify_breakpoint_modified (bpt); |
c906108c SS |
14888 | } |
14889 | ||
51be5b68 PA |
14890 | /* A callback for iterate_over_related_breakpoints. */ |
14891 | ||
14892 | static void | |
14893 | do_disable_breakpoint (struct breakpoint *b, void *ignore) | |
14894 | { | |
14895 | disable_breakpoint (b); | |
14896 | } | |
14897 | ||
95a42b64 TT |
14898 | /* A callback for map_breakpoint_numbers that calls |
14899 | disable_breakpoint. */ | |
14900 | ||
14901 | static void | |
14902 | do_map_disable_breakpoint (struct breakpoint *b, void *ignore) | |
14903 | { | |
51be5b68 | 14904 | iterate_over_related_breakpoints (b, do_disable_breakpoint, NULL); |
95a42b64 TT |
14905 | } |
14906 | ||
c906108c | 14907 | static void |
fba45db2 | 14908 | disable_command (char *args, int from_tty) |
c906108c | 14909 | { |
c906108c | 14910 | if (args == 0) |
46c6471b PA |
14911 | { |
14912 | struct breakpoint *bpt; | |
14913 | ||
14914 | ALL_BREAKPOINTS (bpt) | |
14915 | if (user_breakpoint_p (bpt)) | |
14916 | disable_breakpoint (bpt); | |
14917 | } | |
9eaabc75 | 14918 | else |
0d381245 | 14919 | { |
9eaabc75 MW |
14920 | char *num = extract_arg (&args); |
14921 | ||
14922 | while (num) | |
d248b706 | 14923 | { |
9eaabc75 | 14924 | if (strchr (num, '.')) |
b775012e | 14925 | { |
9eaabc75 MW |
14926 | struct bp_location *loc = find_location_by_number (num); |
14927 | ||
14928 | if (loc) | |
14929 | { | |
14930 | if (loc->enabled) | |
14931 | { | |
14932 | loc->enabled = 0; | |
14933 | mark_breakpoint_location_modified (loc); | |
14934 | } | |
14935 | if (target_supports_enable_disable_tracepoint () | |
14936 | && current_trace_status ()->running && loc->owner | |
14937 | && is_tracepoint (loc->owner)) | |
14938 | target_disable_tracepoint (loc); | |
14939 | } | |
14940 | update_global_location_list (0); | |
b775012e | 14941 | } |
9eaabc75 MW |
14942 | else |
14943 | map_breakpoint_numbers (num, do_map_disable_breakpoint, NULL); | |
14944 | num = extract_arg (&args); | |
d248b706 | 14945 | } |
0d381245 | 14946 | } |
c906108c SS |
14947 | } |
14948 | ||
14949 | static void | |
816338b5 SS |
14950 | enable_breakpoint_disp (struct breakpoint *bpt, enum bpdisp disposition, |
14951 | int count) | |
c906108c | 14952 | { |
afe38095 | 14953 | int target_resources_ok; |
c906108c SS |
14954 | |
14955 | if (bpt->type == bp_hardware_breakpoint) | |
14956 | { | |
14957 | int i; | |
c5aa993b | 14958 | i = hw_breakpoint_used_count (); |
53a5351d | 14959 | target_resources_ok = |
d92524f1 | 14960 | target_can_use_hardware_watchpoint (bp_hardware_breakpoint, |
53a5351d | 14961 | i + 1, 0); |
c906108c | 14962 | if (target_resources_ok == 0) |
8a3fe4f8 | 14963 | error (_("No hardware breakpoint support in the target.")); |
c906108c | 14964 | else if (target_resources_ok < 0) |
8a3fe4f8 | 14965 | error (_("Hardware breakpoints used exceeds limit.")); |
c906108c SS |
14966 | } |
14967 | ||
cc60f2e3 | 14968 | if (is_watchpoint (bpt)) |
c906108c | 14969 | { |
d07205c2 JK |
14970 | /* Initialize it just to avoid a GCC false warning. */ |
14971 | enum enable_state orig_enable_state = 0; | |
bfd189b1 | 14972 | volatile struct gdb_exception e; |
dde02812 ES |
14973 | |
14974 | TRY_CATCH (e, RETURN_MASK_ALL) | |
c906108c | 14975 | { |
3a5c3e22 PA |
14976 | struct watchpoint *w = (struct watchpoint *) bpt; |
14977 | ||
1e718ff1 TJB |
14978 | orig_enable_state = bpt->enable_state; |
14979 | bpt->enable_state = bp_enabled; | |
3a5c3e22 | 14980 | update_watchpoint (w, 1 /* reparse */); |
c906108c | 14981 | } |
dde02812 | 14982 | if (e.reason < 0) |
c5aa993b | 14983 | { |
1e718ff1 | 14984 | bpt->enable_state = orig_enable_state; |
dde02812 ES |
14985 | exception_fprintf (gdb_stderr, e, _("Cannot enable watchpoint %d: "), |
14986 | bpt->number); | |
14987 | return; | |
c5aa993b | 14988 | } |
c906108c | 14989 | } |
0101ce28 | 14990 | |
b4c291bb KH |
14991 | if (bpt->enable_state != bp_permanent) |
14992 | bpt->enable_state = bp_enabled; | |
d248b706 | 14993 | |
b775012e LM |
14994 | bpt->enable_state = bp_enabled; |
14995 | ||
14996 | /* Mark breakpoint locations modified. */ | |
14997 | mark_breakpoint_modified (bpt); | |
14998 | ||
d248b706 KY |
14999 | if (target_supports_enable_disable_tracepoint () |
15000 | && current_trace_status ()->running && is_tracepoint (bpt)) | |
15001 | { | |
15002 | struct bp_location *location; | |
15003 | ||
15004 | for (location = bpt->loc; location; location = location->next) | |
15005 | target_enable_tracepoint (location); | |
15006 | } | |
15007 | ||
b4c291bb | 15008 | bpt->disposition = disposition; |
816338b5 | 15009 | bpt->enable_count = count; |
b60e7edf | 15010 | update_global_location_list (1); |
9c97429f | 15011 | |
8d3788bd | 15012 | observer_notify_breakpoint_modified (bpt); |
c906108c SS |
15013 | } |
15014 | ||
fe3f5fa8 | 15015 | |
c906108c | 15016 | void |
fba45db2 | 15017 | enable_breakpoint (struct breakpoint *bpt) |
c906108c | 15018 | { |
816338b5 | 15019 | enable_breakpoint_disp (bpt, bpt->disposition, 0); |
51be5b68 PA |
15020 | } |
15021 | ||
15022 | static void | |
15023 | do_enable_breakpoint (struct breakpoint *bpt, void *arg) | |
15024 | { | |
15025 | enable_breakpoint (bpt); | |
c906108c SS |
15026 | } |
15027 | ||
95a42b64 TT |
15028 | /* A callback for map_breakpoint_numbers that calls |
15029 | enable_breakpoint. */ | |
15030 | ||
15031 | static void | |
15032 | do_map_enable_breakpoint (struct breakpoint *b, void *ignore) | |
15033 | { | |
51be5b68 | 15034 | iterate_over_related_breakpoints (b, do_enable_breakpoint, NULL); |
95a42b64 TT |
15035 | } |
15036 | ||
c906108c SS |
15037 | /* The enable command enables the specified breakpoints (or all defined |
15038 | breakpoints) so they once again become (or continue to be) effective | |
1272ad14 | 15039 | in stopping the inferior. */ |
c906108c | 15040 | |
c906108c | 15041 | static void |
fba45db2 | 15042 | enable_command (char *args, int from_tty) |
c906108c | 15043 | { |
c906108c | 15044 | if (args == 0) |
46c6471b PA |
15045 | { |
15046 | struct breakpoint *bpt; | |
15047 | ||
15048 | ALL_BREAKPOINTS (bpt) | |
15049 | if (user_breakpoint_p (bpt)) | |
15050 | enable_breakpoint (bpt); | |
15051 | } | |
9eaabc75 | 15052 | else |
0d381245 | 15053 | { |
9eaabc75 MW |
15054 | char *num = extract_arg (&args); |
15055 | ||
15056 | while (num) | |
d248b706 | 15057 | { |
9eaabc75 | 15058 | if (strchr (num, '.')) |
b775012e | 15059 | { |
9eaabc75 MW |
15060 | struct bp_location *loc = find_location_by_number (num); |
15061 | ||
15062 | if (loc) | |
15063 | { | |
15064 | if (!loc->enabled) | |
15065 | { | |
15066 | loc->enabled = 1; | |
15067 | mark_breakpoint_location_modified (loc); | |
15068 | } | |
15069 | if (target_supports_enable_disable_tracepoint () | |
15070 | && current_trace_status ()->running && loc->owner | |
15071 | && is_tracepoint (loc->owner)) | |
15072 | target_enable_tracepoint (loc); | |
15073 | } | |
15074 | update_global_location_list (1); | |
b775012e | 15075 | } |
9eaabc75 MW |
15076 | else |
15077 | map_breakpoint_numbers (num, do_map_enable_breakpoint, NULL); | |
15078 | num = extract_arg (&args); | |
d248b706 | 15079 | } |
0d381245 | 15080 | } |
c906108c SS |
15081 | } |
15082 | ||
816338b5 SS |
15083 | /* This struct packages up disposition data for application to multiple |
15084 | breakpoints. */ | |
15085 | ||
15086 | struct disp_data | |
15087 | { | |
15088 | enum bpdisp disp; | |
15089 | int count; | |
15090 | }; | |
15091 | ||
c906108c | 15092 | static void |
51be5b68 PA |
15093 | do_enable_breakpoint_disp (struct breakpoint *bpt, void *arg) |
15094 | { | |
816338b5 | 15095 | struct disp_data disp_data = *(struct disp_data *) arg; |
51be5b68 | 15096 | |
816338b5 | 15097 | enable_breakpoint_disp (bpt, disp_data.disp, disp_data.count); |
51be5b68 PA |
15098 | } |
15099 | ||
15100 | static void | |
15101 | do_map_enable_once_breakpoint (struct breakpoint *bpt, void *ignore) | |
c906108c | 15102 | { |
816338b5 | 15103 | struct disp_data disp = { disp_disable, 1 }; |
51be5b68 PA |
15104 | |
15105 | iterate_over_related_breakpoints (bpt, do_enable_breakpoint_disp, &disp); | |
c906108c SS |
15106 | } |
15107 | ||
c906108c | 15108 | static void |
fba45db2 | 15109 | enable_once_command (char *args, int from_tty) |
c906108c | 15110 | { |
51be5b68 | 15111 | map_breakpoint_numbers (args, do_map_enable_once_breakpoint, NULL); |
c906108c SS |
15112 | } |
15113 | ||
816338b5 SS |
15114 | static void |
15115 | do_map_enable_count_breakpoint (struct breakpoint *bpt, void *countptr) | |
15116 | { | |
15117 | struct disp_data disp = { disp_disable, *(int *) countptr }; | |
15118 | ||
15119 | iterate_over_related_breakpoints (bpt, do_enable_breakpoint_disp, &disp); | |
15120 | } | |
15121 | ||
15122 | static void | |
15123 | enable_count_command (char *args, int from_tty) | |
15124 | { | |
15125 | int count = get_number (&args); | |
15126 | ||
15127 | map_breakpoint_numbers (args, do_map_enable_count_breakpoint, &count); | |
15128 | } | |
15129 | ||
c906108c | 15130 | static void |
51be5b68 | 15131 | do_map_enable_delete_breakpoint (struct breakpoint *bpt, void *ignore) |
c906108c | 15132 | { |
816338b5 | 15133 | struct disp_data disp = { disp_del, 1 }; |
51be5b68 PA |
15134 | |
15135 | iterate_over_related_breakpoints (bpt, do_enable_breakpoint_disp, &disp); | |
c906108c SS |
15136 | } |
15137 | ||
c906108c | 15138 | static void |
fba45db2 | 15139 | enable_delete_command (char *args, int from_tty) |
c906108c | 15140 | { |
51be5b68 | 15141 | map_breakpoint_numbers (args, do_map_enable_delete_breakpoint, NULL); |
c906108c SS |
15142 | } |
15143 | \f | |
fa8d40ab JJ |
15144 | static void |
15145 | set_breakpoint_cmd (char *args, int from_tty) | |
15146 | { | |
15147 | } | |
15148 | ||
15149 | static void | |
15150 | show_breakpoint_cmd (char *args, int from_tty) | |
15151 | { | |
15152 | } | |
15153 | ||
1f3b5d1b PP |
15154 | /* Invalidate last known value of any hardware watchpoint if |
15155 | the memory which that value represents has been written to by | |
15156 | GDB itself. */ | |
15157 | ||
15158 | static void | |
8de0566d YQ |
15159 | invalidate_bp_value_on_memory_change (struct inferior *inferior, |
15160 | CORE_ADDR addr, ssize_t len, | |
1f3b5d1b PP |
15161 | const bfd_byte *data) |
15162 | { | |
15163 | struct breakpoint *bp; | |
15164 | ||
15165 | ALL_BREAKPOINTS (bp) | |
15166 | if (bp->enable_state == bp_enabled | |
3a5c3e22 | 15167 | && bp->type == bp_hardware_watchpoint) |
1f3b5d1b | 15168 | { |
3a5c3e22 | 15169 | struct watchpoint *wp = (struct watchpoint *) bp; |
1f3b5d1b | 15170 | |
3a5c3e22 PA |
15171 | if (wp->val_valid && wp->val) |
15172 | { | |
15173 | struct bp_location *loc; | |
15174 | ||
15175 | for (loc = bp->loc; loc != NULL; loc = loc->next) | |
15176 | if (loc->loc_type == bp_loc_hardware_watchpoint | |
15177 | && loc->address + loc->length > addr | |
15178 | && addr + len > loc->address) | |
15179 | { | |
15180 | value_free (wp->val); | |
15181 | wp->val = NULL; | |
15182 | wp->val_valid = 0; | |
15183 | } | |
15184 | } | |
1f3b5d1b PP |
15185 | } |
15186 | } | |
15187 | ||
8181d85f DJ |
15188 | /* Create and insert a raw software breakpoint at PC. Return an |
15189 | identifier, which should be used to remove the breakpoint later. | |
15190 | In general, places which call this should be using something on the | |
15191 | breakpoint chain instead; this function should be eliminated | |
15192 | someday. */ | |
15193 | ||
15194 | void * | |
6c95b8df PA |
15195 | deprecated_insert_raw_breakpoint (struct gdbarch *gdbarch, |
15196 | struct address_space *aspace, CORE_ADDR pc) | |
8181d85f DJ |
15197 | { |
15198 | struct bp_target_info *bp_tgt; | |
ef370185 | 15199 | struct bp_location *bl; |
8181d85f | 15200 | |
41bf6aca | 15201 | bp_tgt = XCNEW (struct bp_target_info); |
8181d85f | 15202 | |
6c95b8df | 15203 | bp_tgt->placed_address_space = aspace; |
8181d85f | 15204 | bp_tgt->placed_address = pc; |
6c95b8df | 15205 | |
ef370185 JB |
15206 | /* If an unconditional non-raw breakpoint is already inserted at |
15207 | that location, there's no need to insert another. However, with | |
15208 | target-side evaluation of breakpoint conditions, if the | |
15209 | breakpoint that is currently inserted on the target is | |
15210 | conditional, we need to make it unconditional. Note that a | |
15211 | breakpoint with target-side commands is not reported even if | |
15212 | unconditional, so we need to remove the commands from the target | |
15213 | as well. */ | |
15214 | bl = find_non_raw_software_breakpoint_inserted_here (aspace, pc); | |
15215 | if (bl != NULL | |
15216 | && VEC_empty (agent_expr_p, bl->target_info.conditions) | |
15217 | && VEC_empty (agent_expr_p, bl->target_info.tcommands)) | |
15218 | { | |
15219 | bp_target_info_copy_insertion_state (bp_tgt, &bl->target_info); | |
15220 | return bp_tgt; | |
15221 | } | |
15222 | ||
a6d9a66e | 15223 | if (target_insert_breakpoint (gdbarch, bp_tgt) != 0) |
8181d85f DJ |
15224 | { |
15225 | /* Could not insert the breakpoint. */ | |
15226 | xfree (bp_tgt); | |
15227 | return NULL; | |
15228 | } | |
15229 | ||
15230 | return bp_tgt; | |
15231 | } | |
15232 | ||
4a64f543 MS |
15233 | /* Remove a breakpoint BP inserted by |
15234 | deprecated_insert_raw_breakpoint. */ | |
8181d85f DJ |
15235 | |
15236 | int | |
a6d9a66e | 15237 | deprecated_remove_raw_breakpoint (struct gdbarch *gdbarch, void *bp) |
8181d85f DJ |
15238 | { |
15239 | struct bp_target_info *bp_tgt = bp; | |
ef370185 JB |
15240 | struct address_space *aspace = bp_tgt->placed_address_space; |
15241 | CORE_ADDR address = bp_tgt->placed_address; | |
15242 | struct bp_location *bl; | |
8181d85f DJ |
15243 | int ret; |
15244 | ||
ef370185 JB |
15245 | bl = find_non_raw_software_breakpoint_inserted_here (aspace, address); |
15246 | ||
15247 | /* Only remove the raw breakpoint if there are no other non-raw | |
15248 | breakpoints still inserted at this location. Otherwise, we would | |
15249 | be effectively disabling those breakpoints. */ | |
15250 | if (bl == NULL) | |
15251 | ret = target_remove_breakpoint (gdbarch, bp_tgt); | |
15252 | else if (!VEC_empty (agent_expr_p, bl->target_info.conditions) | |
15253 | || !VEC_empty (agent_expr_p, bl->target_info.tcommands)) | |
15254 | { | |
15255 | /* The target is evaluating conditions, and when we inserted the | |
15256 | software single-step breakpoint, we had made the breakpoint | |
15257 | unconditional and command-less on the target side. Reinsert | |
15258 | to restore the conditions/commands. */ | |
15259 | ret = target_insert_breakpoint (bl->gdbarch, &bl->target_info); | |
15260 | } | |
15261 | else | |
15262 | ret = 0; | |
15263 | ||
8181d85f DJ |
15264 | xfree (bp_tgt); |
15265 | ||
15266 | return ret; | |
15267 | } | |
15268 | ||
8181d85f DJ |
15269 | /* Create and insert a breakpoint for software single step. */ |
15270 | ||
15271 | void | |
6c95b8df | 15272 | insert_single_step_breakpoint (struct gdbarch *gdbarch, |
4a64f543 MS |
15273 | struct address_space *aspace, |
15274 | CORE_ADDR next_pc) | |
8181d85f DJ |
15275 | { |
15276 | void **bpt_p; | |
15277 | ||
15278 | if (single_step_breakpoints[0] == NULL) | |
a6d9a66e UW |
15279 | { |
15280 | bpt_p = &single_step_breakpoints[0]; | |
15281 | single_step_gdbarch[0] = gdbarch; | |
15282 | } | |
8181d85f DJ |
15283 | else |
15284 | { | |
15285 | gdb_assert (single_step_breakpoints[1] == NULL); | |
15286 | bpt_p = &single_step_breakpoints[1]; | |
a6d9a66e | 15287 | single_step_gdbarch[1] = gdbarch; |
8181d85f DJ |
15288 | } |
15289 | ||
4a64f543 MS |
15290 | /* NOTE drow/2006-04-11: A future improvement to this function would |
15291 | be to only create the breakpoints once, and actually put them on | |
15292 | the breakpoint chain. That would let us use set_raw_breakpoint. | |
15293 | We could adjust the addresses each time they were needed. Doing | |
15294 | this requires corresponding changes elsewhere where single step | |
15295 | breakpoints are handled, however. So, for now, we use this. */ | |
8181d85f | 15296 | |
6c95b8df | 15297 | *bpt_p = deprecated_insert_raw_breakpoint (gdbarch, aspace, next_pc); |
8181d85f | 15298 | if (*bpt_p == NULL) |
5af949e3 UW |
15299 | error (_("Could not insert single-step breakpoint at %s"), |
15300 | paddress (gdbarch, next_pc)); | |
8181d85f DJ |
15301 | } |
15302 | ||
f02253f1 HZ |
15303 | /* Check if the breakpoints used for software single stepping |
15304 | were inserted or not. */ | |
15305 | ||
15306 | int | |
15307 | single_step_breakpoints_inserted (void) | |
15308 | { | |
15309 | return (single_step_breakpoints[0] != NULL | |
15310 | || single_step_breakpoints[1] != NULL); | |
15311 | } | |
15312 | ||
8181d85f DJ |
15313 | /* Remove and delete any breakpoints used for software single step. */ |
15314 | ||
15315 | void | |
15316 | remove_single_step_breakpoints (void) | |
15317 | { | |
15318 | gdb_assert (single_step_breakpoints[0] != NULL); | |
15319 | ||
15320 | /* See insert_single_step_breakpoint for more about this deprecated | |
15321 | call. */ | |
a6d9a66e UW |
15322 | deprecated_remove_raw_breakpoint (single_step_gdbarch[0], |
15323 | single_step_breakpoints[0]); | |
15324 | single_step_gdbarch[0] = NULL; | |
8181d85f DJ |
15325 | single_step_breakpoints[0] = NULL; |
15326 | ||
15327 | if (single_step_breakpoints[1] != NULL) | |
15328 | { | |
a6d9a66e UW |
15329 | deprecated_remove_raw_breakpoint (single_step_gdbarch[1], |
15330 | single_step_breakpoints[1]); | |
15331 | single_step_gdbarch[1] = NULL; | |
8181d85f DJ |
15332 | single_step_breakpoints[1] = NULL; |
15333 | } | |
15334 | } | |
15335 | ||
d03285ec UW |
15336 | /* Delete software single step breakpoints without removing them from |
15337 | the inferior. This is intended to be used if the inferior's address | |
15338 | space where they were inserted is already gone, e.g. after exit or | |
15339 | exec. */ | |
15340 | ||
15341 | void | |
15342 | cancel_single_step_breakpoints (void) | |
15343 | { | |
15344 | int i; | |
15345 | ||
15346 | for (i = 0; i < 2; i++) | |
15347 | if (single_step_breakpoints[i]) | |
15348 | { | |
15349 | xfree (single_step_breakpoints[i]); | |
15350 | single_step_breakpoints[i] = NULL; | |
15351 | single_step_gdbarch[i] = NULL; | |
15352 | } | |
15353 | } | |
15354 | ||
15355 | /* Detach software single-step breakpoints from INFERIOR_PTID without | |
15356 | removing them. */ | |
15357 | ||
15358 | static void | |
15359 | detach_single_step_breakpoints (void) | |
15360 | { | |
15361 | int i; | |
15362 | ||
15363 | for (i = 0; i < 2; i++) | |
15364 | if (single_step_breakpoints[i]) | |
15365 | target_remove_breakpoint (single_step_gdbarch[i], | |
15366 | single_step_breakpoints[i]); | |
15367 | } | |
15368 | ||
ef370185 JB |
15369 | /* Find the software single-step breakpoint that inserted at PC. |
15370 | Returns its slot if found, and -1 if not found. */ | |
1aafd4da | 15371 | |
ef370185 JB |
15372 | static int |
15373 | find_single_step_breakpoint (struct address_space *aspace, | |
15374 | CORE_ADDR pc) | |
1aafd4da UW |
15375 | { |
15376 | int i; | |
15377 | ||
15378 | for (i = 0; i < 2; i++) | |
15379 | { | |
15380 | struct bp_target_info *bp_tgt = single_step_breakpoints[i]; | |
6c95b8df PA |
15381 | if (bp_tgt |
15382 | && breakpoint_address_match (bp_tgt->placed_address_space, | |
15383 | bp_tgt->placed_address, | |
15384 | aspace, pc)) | |
ef370185 | 15385 | return i; |
1aafd4da UW |
15386 | } |
15387 | ||
ef370185 JB |
15388 | return -1; |
15389 | } | |
15390 | ||
15391 | /* Check whether a software single-step breakpoint is inserted at | |
15392 | PC. */ | |
15393 | ||
15394 | int | |
15395 | single_step_breakpoint_inserted_here_p (struct address_space *aspace, | |
15396 | CORE_ADDR pc) | |
15397 | { | |
15398 | return find_single_step_breakpoint (aspace, pc) >= 0; | |
1aafd4da UW |
15399 | } |
15400 | ||
a96d9b2e SDJ |
15401 | /* Returns 0 if 'bp' is NOT a syscall catchpoint, |
15402 | non-zero otherwise. */ | |
15403 | static int | |
15404 | is_syscall_catchpoint_enabled (struct breakpoint *bp) | |
15405 | { | |
15406 | if (syscall_catchpoint_p (bp) | |
15407 | && bp->enable_state != bp_disabled | |
15408 | && bp->enable_state != bp_call_disabled) | |
15409 | return 1; | |
15410 | else | |
15411 | return 0; | |
15412 | } | |
15413 | ||
15414 | int | |
15415 | catch_syscall_enabled (void) | |
15416 | { | |
fa3064dd YQ |
15417 | struct catch_syscall_inferior_data *inf_data |
15418 | = get_catch_syscall_inferior_data (current_inferior ()); | |
a96d9b2e | 15419 | |
fa3064dd | 15420 | return inf_data->total_syscalls_count != 0; |
a96d9b2e SDJ |
15421 | } |
15422 | ||
15423 | int | |
15424 | catching_syscall_number (int syscall_number) | |
15425 | { | |
15426 | struct breakpoint *bp; | |
15427 | ||
15428 | ALL_BREAKPOINTS (bp) | |
15429 | if (is_syscall_catchpoint_enabled (bp)) | |
15430 | { | |
be5c67c1 PA |
15431 | struct syscall_catchpoint *c = (struct syscall_catchpoint *) bp; |
15432 | ||
15433 | if (c->syscalls_to_be_caught) | |
a96d9b2e SDJ |
15434 | { |
15435 | int i, iter; | |
15436 | for (i = 0; | |
be5c67c1 | 15437 | VEC_iterate (int, c->syscalls_to_be_caught, i, iter); |
a96d9b2e SDJ |
15438 | i++) |
15439 | if (syscall_number == iter) | |
15440 | return 1; | |
15441 | } | |
15442 | else | |
15443 | return 1; | |
15444 | } | |
15445 | ||
15446 | return 0; | |
15447 | } | |
15448 | ||
15449 | /* Complete syscall names. Used by "catch syscall". */ | |
49c4e619 | 15450 | static VEC (char_ptr) * |
a96d9b2e | 15451 | catch_syscall_completer (struct cmd_list_element *cmd, |
6f937416 | 15452 | const char *text, const char *word) |
a96d9b2e SDJ |
15453 | { |
15454 | const char **list = get_syscall_names (); | |
49c4e619 | 15455 | VEC (char_ptr) *retlist |
b45627a0 | 15456 | = (list == NULL) ? NULL : complete_on_enum (list, word, word); |
cc59ec59 | 15457 | |
c38eea1a MS |
15458 | xfree (list); |
15459 | return retlist; | |
a96d9b2e SDJ |
15460 | } |
15461 | ||
1042e4c0 SS |
15462 | /* Tracepoint-specific operations. */ |
15463 | ||
15464 | /* Set tracepoint count to NUM. */ | |
15465 | static void | |
15466 | set_tracepoint_count (int num) | |
15467 | { | |
15468 | tracepoint_count = num; | |
4fa62494 | 15469 | set_internalvar_integer (lookup_internalvar ("tpnum"), num); |
1042e4c0 SS |
15470 | } |
15471 | ||
70221824 | 15472 | static void |
1042e4c0 SS |
15473 | trace_command (char *arg, int from_tty) |
15474 | { | |
55aa24fb SDJ |
15475 | struct breakpoint_ops *ops; |
15476 | const char *arg_cp = arg; | |
15477 | ||
15478 | if (arg && probe_linespec_to_ops (&arg_cp)) | |
15479 | ops = &tracepoint_probe_breakpoint_ops; | |
15480 | else | |
15481 | ops = &tracepoint_breakpoint_ops; | |
15482 | ||
558a9d82 YQ |
15483 | create_breakpoint (get_current_arch (), |
15484 | arg, | |
15485 | NULL, 0, NULL, 1 /* parse arg */, | |
15486 | 0 /* tempflag */, | |
15487 | bp_tracepoint /* type_wanted */, | |
15488 | 0 /* Ignore count */, | |
15489 | pending_break_support, | |
15490 | ops, | |
15491 | from_tty, | |
15492 | 1 /* enabled */, | |
15493 | 0 /* internal */, 0); | |
1042e4c0 SS |
15494 | } |
15495 | ||
70221824 | 15496 | static void |
7a697b8d SS |
15497 | ftrace_command (char *arg, int from_tty) |
15498 | { | |
558a9d82 YQ |
15499 | create_breakpoint (get_current_arch (), |
15500 | arg, | |
15501 | NULL, 0, NULL, 1 /* parse arg */, | |
15502 | 0 /* tempflag */, | |
15503 | bp_fast_tracepoint /* type_wanted */, | |
15504 | 0 /* Ignore count */, | |
15505 | pending_break_support, | |
15506 | &tracepoint_breakpoint_ops, | |
15507 | from_tty, | |
15508 | 1 /* enabled */, | |
15509 | 0 /* internal */, 0); | |
0fb4aa4b PA |
15510 | } |
15511 | ||
15512 | /* strace command implementation. Creates a static tracepoint. */ | |
15513 | ||
70221824 | 15514 | static void |
0fb4aa4b PA |
15515 | strace_command (char *arg, int from_tty) |
15516 | { | |
983af33b SDJ |
15517 | struct breakpoint_ops *ops; |
15518 | ||
15519 | /* Decide if we are dealing with a static tracepoint marker (`-m'), | |
15520 | or with a normal static tracepoint. */ | |
15521 | if (arg && strncmp (arg, "-m", 2) == 0 && isspace (arg[2])) | |
15522 | ops = &strace_marker_breakpoint_ops; | |
15523 | else | |
15524 | ops = &tracepoint_breakpoint_ops; | |
15525 | ||
558a9d82 YQ |
15526 | create_breakpoint (get_current_arch (), |
15527 | arg, | |
15528 | NULL, 0, NULL, 1 /* parse arg */, | |
15529 | 0 /* tempflag */, | |
15530 | bp_static_tracepoint /* type_wanted */, | |
15531 | 0 /* Ignore count */, | |
15532 | pending_break_support, | |
15533 | ops, | |
15534 | from_tty, | |
15535 | 1 /* enabled */, | |
15536 | 0 /* internal */, 0); | |
7a697b8d SS |
15537 | } |
15538 | ||
409873ef SS |
15539 | /* Set up a fake reader function that gets command lines from a linked |
15540 | list that was acquired during tracepoint uploading. */ | |
15541 | ||
15542 | static struct uploaded_tp *this_utp; | |
3149d8c1 | 15543 | static int next_cmd; |
409873ef SS |
15544 | |
15545 | static char * | |
15546 | read_uploaded_action (void) | |
15547 | { | |
15548 | char *rslt; | |
15549 | ||
3149d8c1 | 15550 | VEC_iterate (char_ptr, this_utp->cmd_strings, next_cmd, rslt); |
409873ef | 15551 | |
3149d8c1 | 15552 | next_cmd++; |
409873ef SS |
15553 | |
15554 | return rslt; | |
15555 | } | |
15556 | ||
00bf0b85 SS |
15557 | /* Given information about a tracepoint as recorded on a target (which |
15558 | can be either a live system or a trace file), attempt to create an | |
15559 | equivalent GDB tracepoint. This is not a reliable process, since | |
15560 | the target does not necessarily have all the information used when | |
15561 | the tracepoint was originally defined. */ | |
15562 | ||
d9b3f62e | 15563 | struct tracepoint * |
00bf0b85 | 15564 | create_tracepoint_from_upload (struct uploaded_tp *utp) |
d5551862 | 15565 | { |
409873ef | 15566 | char *addr_str, small_buf[100]; |
d9b3f62e | 15567 | struct tracepoint *tp; |
fd9b8c24 | 15568 | |
409873ef SS |
15569 | if (utp->at_string) |
15570 | addr_str = utp->at_string; | |
15571 | else | |
15572 | { | |
15573 | /* In the absence of a source location, fall back to raw | |
15574 | address. Since there is no way to confirm that the address | |
15575 | means the same thing as when the trace was started, warn the | |
15576 | user. */ | |
3e43a32a MS |
15577 | warning (_("Uploaded tracepoint %d has no " |
15578 | "source location, using raw address"), | |
409873ef | 15579 | utp->number); |
8c042590 | 15580 | xsnprintf (small_buf, sizeof (small_buf), "*%s", hex_string (utp->addr)); |
409873ef SS |
15581 | addr_str = small_buf; |
15582 | } | |
15583 | ||
15584 | /* There's not much we can do with a sequence of bytecodes. */ | |
15585 | if (utp->cond && !utp->cond_string) | |
3e43a32a MS |
15586 | warning (_("Uploaded tracepoint %d condition " |
15587 | "has no source form, ignoring it"), | |
409873ef | 15588 | utp->number); |
d5551862 | 15589 | |
8cdf0e15 | 15590 | if (!create_breakpoint (get_current_arch (), |
409873ef | 15591 | addr_str, |
e7e0cddf SS |
15592 | utp->cond_string, -1, NULL, |
15593 | 0 /* parse cond/thread */, | |
8cdf0e15 | 15594 | 0 /* tempflag */, |
0fb4aa4b | 15595 | utp->type /* type_wanted */, |
8cdf0e15 VP |
15596 | 0 /* Ignore count */, |
15597 | pending_break_support, | |
348d480f | 15598 | &tracepoint_breakpoint_ops, |
8cdf0e15 | 15599 | 0 /* from_tty */, |
84f4c1fe | 15600 | utp->enabled /* enabled */, |
44f238bb PA |
15601 | 0 /* internal */, |
15602 | CREATE_BREAKPOINT_FLAGS_INSERTED)) | |
fd9b8c24 PA |
15603 | return NULL; |
15604 | ||
409873ef | 15605 | /* Get the tracepoint we just created. */ |
fd9b8c24 PA |
15606 | tp = get_tracepoint (tracepoint_count); |
15607 | gdb_assert (tp != NULL); | |
d5551862 | 15608 | |
00bf0b85 SS |
15609 | if (utp->pass > 0) |
15610 | { | |
8c042590 PM |
15611 | xsnprintf (small_buf, sizeof (small_buf), "%d %d", utp->pass, |
15612 | tp->base.number); | |
00bf0b85 | 15613 | |
409873ef | 15614 | trace_pass_command (small_buf, 0); |
00bf0b85 SS |
15615 | } |
15616 | ||
409873ef SS |
15617 | /* If we have uploaded versions of the original commands, set up a |
15618 | special-purpose "reader" function and call the usual command line | |
15619 | reader, then pass the result to the breakpoint command-setting | |
15620 | function. */ | |
3149d8c1 | 15621 | if (!VEC_empty (char_ptr, utp->cmd_strings)) |
00bf0b85 | 15622 | { |
409873ef | 15623 | struct command_line *cmd_list; |
00bf0b85 | 15624 | |
409873ef | 15625 | this_utp = utp; |
3149d8c1 | 15626 | next_cmd = 0; |
d5551862 | 15627 | |
409873ef SS |
15628 | cmd_list = read_command_lines_1 (read_uploaded_action, 1, NULL, NULL); |
15629 | ||
d9b3f62e | 15630 | breakpoint_set_commands (&tp->base, cmd_list); |
00bf0b85 | 15631 | } |
3149d8c1 SS |
15632 | else if (!VEC_empty (char_ptr, utp->actions) |
15633 | || !VEC_empty (char_ptr, utp->step_actions)) | |
3e43a32a MS |
15634 | warning (_("Uploaded tracepoint %d actions " |
15635 | "have no source form, ignoring them"), | |
409873ef | 15636 | utp->number); |
00bf0b85 | 15637 | |
f196051f SS |
15638 | /* Copy any status information that might be available. */ |
15639 | tp->base.hit_count = utp->hit_count; | |
15640 | tp->traceframe_usage = utp->traceframe_usage; | |
15641 | ||
00bf0b85 | 15642 | return tp; |
d9b3f62e | 15643 | } |
00bf0b85 | 15644 | |
1042e4c0 SS |
15645 | /* Print information on tracepoint number TPNUM_EXP, or all if |
15646 | omitted. */ | |
15647 | ||
15648 | static void | |
e5a67952 | 15649 | tracepoints_info (char *args, int from_tty) |
1042e4c0 | 15650 | { |
79a45e25 | 15651 | struct ui_out *uiout = current_uiout; |
e5a67952 | 15652 | int num_printed; |
1042e4c0 | 15653 | |
e5a67952 | 15654 | num_printed = breakpoint_1 (args, 0, is_tracepoint); |
d77f58be SS |
15655 | |
15656 | if (num_printed == 0) | |
1042e4c0 | 15657 | { |
e5a67952 | 15658 | if (args == NULL || *args == '\0') |
d77f58be SS |
15659 | ui_out_message (uiout, 0, "No tracepoints.\n"); |
15660 | else | |
e5a67952 | 15661 | ui_out_message (uiout, 0, "No tracepoint matching '%s'.\n", args); |
1042e4c0 | 15662 | } |
ad443146 SS |
15663 | |
15664 | default_collect_info (); | |
1042e4c0 SS |
15665 | } |
15666 | ||
4a64f543 | 15667 | /* The 'enable trace' command enables tracepoints. |
1042e4c0 SS |
15668 | Not supported by all targets. */ |
15669 | static void | |
15670 | enable_trace_command (char *args, int from_tty) | |
15671 | { | |
15672 | enable_command (args, from_tty); | |
15673 | } | |
15674 | ||
4a64f543 | 15675 | /* The 'disable trace' command disables tracepoints. |
1042e4c0 SS |
15676 | Not supported by all targets. */ |
15677 | static void | |
15678 | disable_trace_command (char *args, int from_tty) | |
15679 | { | |
15680 | disable_command (args, from_tty); | |
15681 | } | |
15682 | ||
4a64f543 | 15683 | /* Remove a tracepoint (or all if no argument). */ |
1042e4c0 SS |
15684 | static void |
15685 | delete_trace_command (char *arg, int from_tty) | |
15686 | { | |
35df4500 | 15687 | struct breakpoint *b, *b_tmp; |
1042e4c0 SS |
15688 | |
15689 | dont_repeat (); | |
15690 | ||
15691 | if (arg == 0) | |
15692 | { | |
15693 | int breaks_to_delete = 0; | |
15694 | ||
15695 | /* Delete all breakpoints if no argument. | |
15696 | Do not delete internal or call-dummy breakpoints, these | |
4a64f543 MS |
15697 | have to be deleted with an explicit breakpoint number |
15698 | argument. */ | |
1042e4c0 | 15699 | ALL_TRACEPOINTS (b) |
46c6471b | 15700 | if (is_tracepoint (b) && user_breakpoint_p (b)) |
1042e4c0 SS |
15701 | { |
15702 | breaks_to_delete = 1; | |
15703 | break; | |
15704 | } | |
1042e4c0 SS |
15705 | |
15706 | /* Ask user only if there are some breakpoints to delete. */ | |
15707 | if (!from_tty | |
15708 | || (breaks_to_delete && query (_("Delete all tracepoints? ")))) | |
15709 | { | |
35df4500 | 15710 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
46c6471b | 15711 | if (is_tracepoint (b) && user_breakpoint_p (b)) |
1042e4c0 | 15712 | delete_breakpoint (b); |
1042e4c0 SS |
15713 | } |
15714 | } | |
15715 | else | |
51be5b68 | 15716 | map_breakpoint_numbers (arg, do_map_delete_breakpoint, NULL); |
1042e4c0 SS |
15717 | } |
15718 | ||
197f0a60 TT |
15719 | /* Helper function for trace_pass_command. */ |
15720 | ||
15721 | static void | |
d9b3f62e | 15722 | trace_pass_set_count (struct tracepoint *tp, int count, int from_tty) |
197f0a60 | 15723 | { |
d9b3f62e | 15724 | tp->pass_count = count; |
6f6484cd | 15725 | observer_notify_breakpoint_modified (&tp->base); |
197f0a60 TT |
15726 | if (from_tty) |
15727 | printf_filtered (_("Setting tracepoint %d's passcount to %d\n"), | |
d9b3f62e | 15728 | tp->base.number, count); |
197f0a60 TT |
15729 | } |
15730 | ||
1042e4c0 SS |
15731 | /* Set passcount for tracepoint. |
15732 | ||
15733 | First command argument is passcount, second is tracepoint number. | |
15734 | If tracepoint number omitted, apply to most recently defined. | |
15735 | Also accepts special argument "all". */ | |
15736 | ||
15737 | static void | |
15738 | trace_pass_command (char *args, int from_tty) | |
15739 | { | |
d9b3f62e | 15740 | struct tracepoint *t1; |
1042e4c0 | 15741 | unsigned int count; |
1042e4c0 SS |
15742 | |
15743 | if (args == 0 || *args == 0) | |
3e43a32a MS |
15744 | error (_("passcount command requires an " |
15745 | "argument (count + optional TP num)")); | |
1042e4c0 | 15746 | |
4a64f543 | 15747 | count = strtoul (args, &args, 10); /* Count comes first, then TP num. */ |
1042e4c0 | 15748 | |
529480d0 | 15749 | args = skip_spaces (args); |
1042e4c0 SS |
15750 | if (*args && strncasecmp (args, "all", 3) == 0) |
15751 | { | |
d9b3f62e PA |
15752 | struct breakpoint *b; |
15753 | ||
1042e4c0 | 15754 | args += 3; /* Skip special argument "all". */ |
1042e4c0 SS |
15755 | if (*args) |
15756 | error (_("Junk at end of arguments.")); | |
1042e4c0 | 15757 | |
d9b3f62e | 15758 | ALL_TRACEPOINTS (b) |
197f0a60 | 15759 | { |
d9b3f62e | 15760 | t1 = (struct tracepoint *) b; |
197f0a60 TT |
15761 | trace_pass_set_count (t1, count, from_tty); |
15762 | } | |
15763 | } | |
15764 | else if (*args == '\0') | |
1042e4c0 | 15765 | { |
5fa1d40e | 15766 | t1 = get_tracepoint_by_number (&args, NULL); |
1042e4c0 | 15767 | if (t1) |
197f0a60 TT |
15768 | trace_pass_set_count (t1, count, from_tty); |
15769 | } | |
15770 | else | |
15771 | { | |
15772 | struct get_number_or_range_state state; | |
15773 | ||
15774 | init_number_or_range (&state, args); | |
15775 | while (!state.finished) | |
1042e4c0 | 15776 | { |
5fa1d40e | 15777 | t1 = get_tracepoint_by_number (&args, &state); |
197f0a60 TT |
15778 | if (t1) |
15779 | trace_pass_set_count (t1, count, from_tty); | |
1042e4c0 SS |
15780 | } |
15781 | } | |
1042e4c0 SS |
15782 | } |
15783 | ||
d9b3f62e | 15784 | struct tracepoint * |
1042e4c0 SS |
15785 | get_tracepoint (int num) |
15786 | { | |
15787 | struct breakpoint *t; | |
15788 | ||
15789 | ALL_TRACEPOINTS (t) | |
15790 | if (t->number == num) | |
d9b3f62e | 15791 | return (struct tracepoint *) t; |
1042e4c0 SS |
15792 | |
15793 | return NULL; | |
15794 | } | |
15795 | ||
d5551862 SS |
15796 | /* Find the tracepoint with the given target-side number (which may be |
15797 | different from the tracepoint number after disconnecting and | |
15798 | reconnecting). */ | |
15799 | ||
d9b3f62e | 15800 | struct tracepoint * |
d5551862 SS |
15801 | get_tracepoint_by_number_on_target (int num) |
15802 | { | |
d9b3f62e | 15803 | struct breakpoint *b; |
d5551862 | 15804 | |
d9b3f62e PA |
15805 | ALL_TRACEPOINTS (b) |
15806 | { | |
15807 | struct tracepoint *t = (struct tracepoint *) b; | |
15808 | ||
15809 | if (t->number_on_target == num) | |
15810 | return t; | |
15811 | } | |
d5551862 SS |
15812 | |
15813 | return NULL; | |
15814 | } | |
15815 | ||
1042e4c0 | 15816 | /* Utility: parse a tracepoint number and look it up in the list. |
197f0a60 | 15817 | If STATE is not NULL, use, get_number_or_range_state and ignore ARG. |
5fa1d40e YQ |
15818 | If the argument is missing, the most recent tracepoint |
15819 | (tracepoint_count) is returned. */ | |
15820 | ||
d9b3f62e | 15821 | struct tracepoint * |
197f0a60 | 15822 | get_tracepoint_by_number (char **arg, |
5fa1d40e | 15823 | struct get_number_or_range_state *state) |
1042e4c0 | 15824 | { |
1042e4c0 SS |
15825 | struct breakpoint *t; |
15826 | int tpnum; | |
15827 | char *instring = arg == NULL ? NULL : *arg; | |
15828 | ||
197f0a60 TT |
15829 | if (state) |
15830 | { | |
15831 | gdb_assert (!state->finished); | |
15832 | tpnum = get_number_or_range (state); | |
15833 | } | |
15834 | else if (arg == NULL || *arg == NULL || ! **arg) | |
5fa1d40e | 15835 | tpnum = tracepoint_count; |
1042e4c0 | 15836 | else |
197f0a60 | 15837 | tpnum = get_number (arg); |
1042e4c0 SS |
15838 | |
15839 | if (tpnum <= 0) | |
15840 | { | |
15841 | if (instring && *instring) | |
15842 | printf_filtered (_("bad tracepoint number at or near '%s'\n"), | |
15843 | instring); | |
15844 | else | |
5fa1d40e | 15845 | printf_filtered (_("No previous tracepoint\n")); |
1042e4c0 SS |
15846 | return NULL; |
15847 | } | |
15848 | ||
15849 | ALL_TRACEPOINTS (t) | |
15850 | if (t->number == tpnum) | |
15851 | { | |
d9b3f62e | 15852 | return (struct tracepoint *) t; |
1042e4c0 SS |
15853 | } |
15854 | ||
1042e4c0 SS |
15855 | printf_unfiltered ("No tracepoint number %d.\n", tpnum); |
15856 | return NULL; | |
15857 | } | |
15858 | ||
d9b3f62e PA |
15859 | void |
15860 | print_recreate_thread (struct breakpoint *b, struct ui_file *fp) | |
15861 | { | |
15862 | if (b->thread != -1) | |
15863 | fprintf_unfiltered (fp, " thread %d", b->thread); | |
15864 | ||
15865 | if (b->task != 0) | |
15866 | fprintf_unfiltered (fp, " task %d", b->task); | |
15867 | ||
15868 | fprintf_unfiltered (fp, "\n"); | |
15869 | } | |
15870 | ||
6149aea9 PA |
15871 | /* Save information on user settable breakpoints (watchpoints, etc) to |
15872 | a new script file named FILENAME. If FILTER is non-NULL, call it | |
15873 | on each breakpoint and only include the ones for which it returns | |
15874 | non-zero. */ | |
15875 | ||
1042e4c0 | 15876 | static void |
6149aea9 PA |
15877 | save_breakpoints (char *filename, int from_tty, |
15878 | int (*filter) (const struct breakpoint *)) | |
1042e4c0 SS |
15879 | { |
15880 | struct breakpoint *tp; | |
6149aea9 | 15881 | int any = 0; |
1042e4c0 | 15882 | struct cleanup *cleanup; |
a7bdde9e | 15883 | struct ui_file *fp; |
6149aea9 | 15884 | int extra_trace_bits = 0; |
1042e4c0 | 15885 | |
6149aea9 PA |
15886 | if (filename == 0 || *filename == 0) |
15887 | error (_("Argument required (file name in which to save)")); | |
1042e4c0 SS |
15888 | |
15889 | /* See if we have anything to save. */ | |
6149aea9 | 15890 | ALL_BREAKPOINTS (tp) |
1042e4c0 | 15891 | { |
6149aea9 | 15892 | /* Skip internal and momentary breakpoints. */ |
09d682a4 | 15893 | if (!user_breakpoint_p (tp)) |
6149aea9 PA |
15894 | continue; |
15895 | ||
15896 | /* If we have a filter, only save the breakpoints it accepts. */ | |
15897 | if (filter && !filter (tp)) | |
15898 | continue; | |
15899 | ||
15900 | any = 1; | |
15901 | ||
15902 | if (is_tracepoint (tp)) | |
15903 | { | |
15904 | extra_trace_bits = 1; | |
15905 | ||
15906 | /* We can stop searching. */ | |
15907 | break; | |
15908 | } | |
1042e4c0 | 15909 | } |
6149aea9 PA |
15910 | |
15911 | if (!any) | |
1042e4c0 | 15912 | { |
6149aea9 | 15913 | warning (_("Nothing to save.")); |
1042e4c0 SS |
15914 | return; |
15915 | } | |
15916 | ||
c718be47 PA |
15917 | filename = tilde_expand (filename); |
15918 | cleanup = make_cleanup (xfree, filename); | |
15919 | fp = gdb_fopen (filename, "w"); | |
059fb39f | 15920 | if (!fp) |
6149aea9 PA |
15921 | error (_("Unable to open file '%s' for saving (%s)"), |
15922 | filename, safe_strerror (errno)); | |
a7bdde9e | 15923 | make_cleanup_ui_file_delete (fp); |
8bf6485c | 15924 | |
6149aea9 PA |
15925 | if (extra_trace_bits) |
15926 | save_trace_state_variables (fp); | |
8bf6485c | 15927 | |
6149aea9 | 15928 | ALL_BREAKPOINTS (tp) |
1042e4c0 | 15929 | { |
6149aea9 | 15930 | /* Skip internal and momentary breakpoints. */ |
09d682a4 | 15931 | if (!user_breakpoint_p (tp)) |
6149aea9 | 15932 | continue; |
8bf6485c | 15933 | |
6149aea9 PA |
15934 | /* If we have a filter, only save the breakpoints it accepts. */ |
15935 | if (filter && !filter (tp)) | |
15936 | continue; | |
15937 | ||
348d480f | 15938 | tp->ops->print_recreate (tp, fp); |
1042e4c0 | 15939 | |
6149aea9 PA |
15940 | /* Note, we can't rely on tp->number for anything, as we can't |
15941 | assume the recreated breakpoint numbers will match. Use $bpnum | |
15942 | instead. */ | |
15943 | ||
15944 | if (tp->cond_string) | |
15945 | fprintf_unfiltered (fp, " condition $bpnum %s\n", tp->cond_string); | |
15946 | ||
15947 | if (tp->ignore_count) | |
15948 | fprintf_unfiltered (fp, " ignore $bpnum %d\n", tp->ignore_count); | |
15949 | ||
2d9442cc | 15950 | if (tp->type != bp_dprintf && tp->commands) |
1042e4c0 | 15951 | { |
a7bdde9e VP |
15952 | volatile struct gdb_exception ex; |
15953 | ||
6149aea9 | 15954 | fprintf_unfiltered (fp, " commands\n"); |
a7bdde9e | 15955 | |
79a45e25 | 15956 | ui_out_redirect (current_uiout, fp); |
14dba4b4 | 15957 | TRY_CATCH (ex, RETURN_MASK_ALL) |
1042e4c0 | 15958 | { |
79a45e25 | 15959 | print_command_lines (current_uiout, tp->commands->commands, 2); |
a7bdde9e | 15960 | } |
79a45e25 | 15961 | ui_out_redirect (current_uiout, NULL); |
1042e4c0 | 15962 | |
a7bdde9e VP |
15963 | if (ex.reason < 0) |
15964 | throw_exception (ex); | |
1042e4c0 | 15965 | |
a7bdde9e | 15966 | fprintf_unfiltered (fp, " end\n"); |
1042e4c0 | 15967 | } |
6149aea9 PA |
15968 | |
15969 | if (tp->enable_state == bp_disabled) | |
15970 | fprintf_unfiltered (fp, "disable\n"); | |
15971 | ||
15972 | /* If this is a multi-location breakpoint, check if the locations | |
15973 | should be individually disabled. Watchpoint locations are | |
15974 | special, and not user visible. */ | |
15975 | if (!is_watchpoint (tp) && tp->loc && tp->loc->next) | |
15976 | { | |
15977 | struct bp_location *loc; | |
15978 | int n = 1; | |
15979 | ||
15980 | for (loc = tp->loc; loc != NULL; loc = loc->next, n++) | |
15981 | if (!loc->enabled) | |
15982 | fprintf_unfiltered (fp, "disable $bpnum.%d\n", n); | |
15983 | } | |
1042e4c0 | 15984 | } |
8bf6485c | 15985 | |
6149aea9 | 15986 | if (extra_trace_bits && *default_collect) |
8bf6485c SS |
15987 | fprintf_unfiltered (fp, "set default-collect %s\n", default_collect); |
15988 | ||
1042e4c0 | 15989 | if (from_tty) |
6149aea9 | 15990 | printf_filtered (_("Saved to file '%s'.\n"), filename); |
c718be47 | 15991 | do_cleanups (cleanup); |
6149aea9 PA |
15992 | } |
15993 | ||
15994 | /* The `save breakpoints' command. */ | |
15995 | ||
15996 | static void | |
15997 | save_breakpoints_command (char *args, int from_tty) | |
15998 | { | |
15999 | save_breakpoints (args, from_tty, NULL); | |
16000 | } | |
16001 | ||
16002 | /* The `save tracepoints' command. */ | |
16003 | ||
16004 | static void | |
16005 | save_tracepoints_command (char *args, int from_tty) | |
16006 | { | |
16007 | save_breakpoints (args, from_tty, is_tracepoint); | |
1042e4c0 SS |
16008 | } |
16009 | ||
16010 | /* Create a vector of all tracepoints. */ | |
16011 | ||
16012 | VEC(breakpoint_p) * | |
eeae04df | 16013 | all_tracepoints (void) |
1042e4c0 SS |
16014 | { |
16015 | VEC(breakpoint_p) *tp_vec = 0; | |
16016 | struct breakpoint *tp; | |
16017 | ||
16018 | ALL_TRACEPOINTS (tp) | |
16019 | { | |
16020 | VEC_safe_push (breakpoint_p, tp_vec, tp); | |
16021 | } | |
16022 | ||
16023 | return tp_vec; | |
16024 | } | |
16025 | ||
c906108c | 16026 | \f |
4a64f543 MS |
16027 | /* This help string is used for the break, hbreak, tbreak and thbreak |
16028 | commands. It is defined as a macro to prevent duplication. | |
16029 | COMMAND should be a string constant containing the name of the | |
16030 | command. */ | |
31e2b00f | 16031 | #define BREAK_ARGS_HELP(command) \ |
fb7b5af4 SDJ |
16032 | command" [PROBE_MODIFIER] [LOCATION] [thread THREADNUM] [if CONDITION]\n\ |
16033 | PROBE_MODIFIER shall be present if the command is to be placed in a\n\ | |
16034 | probe point. Accepted values are `-probe' (for a generic, automatically\n\ | |
16035 | guessed probe type) or `-probe-stap' (for a SystemTap probe).\n\ | |
31e2b00f AS |
16036 | LOCATION may be a line number, function name, or \"*\" and an address.\n\ |
16037 | If a line number is specified, break at start of code for that line.\n\ | |
16038 | If a function is specified, break at start of code for that function.\n\ | |
16039 | If an address is specified, break at that exact address.\n\ | |
dc10affe PA |
16040 | With no LOCATION, uses current execution address of the selected\n\ |
16041 | stack frame. This is useful for breaking on return to a stack frame.\n\ | |
31e2b00f AS |
16042 | \n\ |
16043 | THREADNUM is the number from \"info threads\".\n\ | |
16044 | CONDITION is a boolean expression.\n\ | |
16045 | \n\ | |
d41c0fc8 PA |
16046 | Multiple breakpoints at one place are permitted, and useful if their\n\ |
16047 | conditions are different.\n\ | |
31e2b00f AS |
16048 | \n\ |
16049 | Do \"help breakpoints\" for info on other commands dealing with breakpoints." | |
16050 | ||
44feb3ce TT |
16051 | /* List of subcommands for "catch". */ |
16052 | static struct cmd_list_element *catch_cmdlist; | |
16053 | ||
16054 | /* List of subcommands for "tcatch". */ | |
16055 | static struct cmd_list_element *tcatch_cmdlist; | |
16056 | ||
9ac4176b | 16057 | void |
44feb3ce TT |
16058 | add_catch_command (char *name, char *docstring, |
16059 | void (*sfunc) (char *args, int from_tty, | |
16060 | struct cmd_list_element *command), | |
625e8578 | 16061 | completer_ftype *completer, |
44feb3ce TT |
16062 | void *user_data_catch, |
16063 | void *user_data_tcatch) | |
16064 | { | |
16065 | struct cmd_list_element *command; | |
16066 | ||
16067 | command = add_cmd (name, class_breakpoint, NULL, docstring, | |
16068 | &catch_cmdlist); | |
16069 | set_cmd_sfunc (command, sfunc); | |
16070 | set_cmd_context (command, user_data_catch); | |
a96d9b2e | 16071 | set_cmd_completer (command, completer); |
44feb3ce TT |
16072 | |
16073 | command = add_cmd (name, class_breakpoint, NULL, docstring, | |
16074 | &tcatch_cmdlist); | |
16075 | set_cmd_sfunc (command, sfunc); | |
16076 | set_cmd_context (command, user_data_tcatch); | |
a96d9b2e | 16077 | set_cmd_completer (command, completer); |
44feb3ce TT |
16078 | } |
16079 | ||
6c95b8df | 16080 | static void |
a79b8f6e | 16081 | clear_syscall_counts (struct inferior *inf) |
6c95b8df | 16082 | { |
fa3064dd YQ |
16083 | struct catch_syscall_inferior_data *inf_data |
16084 | = get_catch_syscall_inferior_data (inf); | |
16085 | ||
16086 | inf_data->total_syscalls_count = 0; | |
16087 | inf_data->any_syscall_count = 0; | |
16088 | VEC_free (int, inf_data->syscalls_counts); | |
6c95b8df PA |
16089 | } |
16090 | ||
6149aea9 PA |
16091 | static void |
16092 | save_command (char *arg, int from_tty) | |
16093 | { | |
3e43a32a MS |
16094 | printf_unfiltered (_("\"save\" must be followed by " |
16095 | "the name of a save subcommand.\n")); | |
6149aea9 PA |
16096 | help_list (save_cmdlist, "save ", -1, gdb_stdout); |
16097 | } | |
16098 | ||
84f4c1fe PM |
16099 | struct breakpoint * |
16100 | iterate_over_breakpoints (int (*callback) (struct breakpoint *, void *), | |
16101 | void *data) | |
16102 | { | |
35df4500 | 16103 | struct breakpoint *b, *b_tmp; |
84f4c1fe | 16104 | |
35df4500 | 16105 | ALL_BREAKPOINTS_SAFE (b, b_tmp) |
84f4c1fe PM |
16106 | { |
16107 | if ((*callback) (b, data)) | |
16108 | return b; | |
16109 | } | |
16110 | ||
16111 | return NULL; | |
16112 | } | |
16113 | ||
0574c78f GB |
16114 | /* Zero if any of the breakpoint's locations could be a location where |
16115 | functions have been inlined, nonzero otherwise. */ | |
16116 | ||
16117 | static int | |
16118 | is_non_inline_function (struct breakpoint *b) | |
16119 | { | |
16120 | /* The shared library event breakpoint is set on the address of a | |
16121 | non-inline function. */ | |
16122 | if (b->type == bp_shlib_event) | |
16123 | return 1; | |
16124 | ||
16125 | return 0; | |
16126 | } | |
16127 | ||
16128 | /* Nonzero if the specified PC cannot be a location where functions | |
16129 | have been inlined. */ | |
16130 | ||
16131 | int | |
09ac7c10 TT |
16132 | pc_at_non_inline_function (struct address_space *aspace, CORE_ADDR pc, |
16133 | const struct target_waitstatus *ws) | |
0574c78f GB |
16134 | { |
16135 | struct breakpoint *b; | |
16136 | struct bp_location *bl; | |
16137 | ||
16138 | ALL_BREAKPOINTS (b) | |
16139 | { | |
16140 | if (!is_non_inline_function (b)) | |
16141 | continue; | |
16142 | ||
16143 | for (bl = b->loc; bl != NULL; bl = bl->next) | |
16144 | { | |
16145 | if (!bl->shlib_disabled | |
09ac7c10 | 16146 | && bpstat_check_location (bl, aspace, pc, ws)) |
0574c78f GB |
16147 | return 1; |
16148 | } | |
16149 | } | |
16150 | ||
16151 | return 0; | |
16152 | } | |
16153 | ||
2f202fde JK |
16154 | /* Remove any references to OBJFILE which is going to be freed. */ |
16155 | ||
16156 | void | |
16157 | breakpoint_free_objfile (struct objfile *objfile) | |
16158 | { | |
16159 | struct bp_location **locp, *loc; | |
16160 | ||
16161 | ALL_BP_LOCATIONS (loc, locp) | |
16162 | if (loc->symtab != NULL && loc->symtab->objfile == objfile) | |
16163 | loc->symtab = NULL; | |
16164 | } | |
16165 | ||
2060206e PA |
16166 | void |
16167 | initialize_breakpoint_ops (void) | |
16168 | { | |
16169 | static int initialized = 0; | |
16170 | ||
16171 | struct breakpoint_ops *ops; | |
16172 | ||
16173 | if (initialized) | |
16174 | return; | |
16175 | initialized = 1; | |
16176 | ||
16177 | /* The breakpoint_ops structure to be inherit by all kinds of | |
16178 | breakpoints (real breakpoints, i.e., user "break" breakpoints, | |
16179 | internal and momentary breakpoints, etc.). */ | |
16180 | ops = &bkpt_base_breakpoint_ops; | |
16181 | *ops = base_breakpoint_ops; | |
16182 | ops->re_set = bkpt_re_set; | |
16183 | ops->insert_location = bkpt_insert_location; | |
16184 | ops->remove_location = bkpt_remove_location; | |
16185 | ops->breakpoint_hit = bkpt_breakpoint_hit; | |
983af33b SDJ |
16186 | ops->create_sals_from_address = bkpt_create_sals_from_address; |
16187 | ops->create_breakpoints_sal = bkpt_create_breakpoints_sal; | |
16188 | ops->decode_linespec = bkpt_decode_linespec; | |
2060206e PA |
16189 | |
16190 | /* The breakpoint_ops structure to be used in regular breakpoints. */ | |
16191 | ops = &bkpt_breakpoint_ops; | |
16192 | *ops = bkpt_base_breakpoint_ops; | |
16193 | ops->re_set = bkpt_re_set; | |
16194 | ops->resources_needed = bkpt_resources_needed; | |
16195 | ops->print_it = bkpt_print_it; | |
16196 | ops->print_mention = bkpt_print_mention; | |
16197 | ops->print_recreate = bkpt_print_recreate; | |
16198 | ||
16199 | /* Ranged breakpoints. */ | |
16200 | ops = &ranged_breakpoint_ops; | |
16201 | *ops = bkpt_breakpoint_ops; | |
16202 | ops->breakpoint_hit = breakpoint_hit_ranged_breakpoint; | |
16203 | ops->resources_needed = resources_needed_ranged_breakpoint; | |
16204 | ops->print_it = print_it_ranged_breakpoint; | |
16205 | ops->print_one = print_one_ranged_breakpoint; | |
16206 | ops->print_one_detail = print_one_detail_ranged_breakpoint; | |
16207 | ops->print_mention = print_mention_ranged_breakpoint; | |
16208 | ops->print_recreate = print_recreate_ranged_breakpoint; | |
16209 | ||
16210 | /* Internal breakpoints. */ | |
16211 | ops = &internal_breakpoint_ops; | |
16212 | *ops = bkpt_base_breakpoint_ops; | |
16213 | ops->re_set = internal_bkpt_re_set; | |
16214 | ops->check_status = internal_bkpt_check_status; | |
16215 | ops->print_it = internal_bkpt_print_it; | |
16216 | ops->print_mention = internal_bkpt_print_mention; | |
16217 | ||
16218 | /* Momentary breakpoints. */ | |
16219 | ops = &momentary_breakpoint_ops; | |
16220 | *ops = bkpt_base_breakpoint_ops; | |
16221 | ops->re_set = momentary_bkpt_re_set; | |
16222 | ops->check_status = momentary_bkpt_check_status; | |
16223 | ops->print_it = momentary_bkpt_print_it; | |
16224 | ops->print_mention = momentary_bkpt_print_mention; | |
16225 | ||
e2e4d78b JK |
16226 | /* Momentary breakpoints for bp_longjmp and bp_exception. */ |
16227 | ops = &longjmp_breakpoint_ops; | |
16228 | *ops = momentary_breakpoint_ops; | |
16229 | ops->dtor = longjmp_bkpt_dtor; | |
16230 | ||
55aa24fb SDJ |
16231 | /* Probe breakpoints. */ |
16232 | ops = &bkpt_probe_breakpoint_ops; | |
16233 | *ops = bkpt_breakpoint_ops; | |
16234 | ops->insert_location = bkpt_probe_insert_location; | |
16235 | ops->remove_location = bkpt_probe_remove_location; | |
16236 | ops->create_sals_from_address = bkpt_probe_create_sals_from_address; | |
16237 | ops->decode_linespec = bkpt_probe_decode_linespec; | |
16238 | ||
2060206e PA |
16239 | /* Watchpoints. */ |
16240 | ops = &watchpoint_breakpoint_ops; | |
16241 | *ops = base_breakpoint_ops; | |
3a5c3e22 | 16242 | ops->dtor = dtor_watchpoint; |
2060206e PA |
16243 | ops->re_set = re_set_watchpoint; |
16244 | ops->insert_location = insert_watchpoint; | |
16245 | ops->remove_location = remove_watchpoint; | |
16246 | ops->breakpoint_hit = breakpoint_hit_watchpoint; | |
16247 | ops->check_status = check_status_watchpoint; | |
16248 | ops->resources_needed = resources_needed_watchpoint; | |
16249 | ops->works_in_software_mode = works_in_software_mode_watchpoint; | |
16250 | ops->print_it = print_it_watchpoint; | |
16251 | ops->print_mention = print_mention_watchpoint; | |
16252 | ops->print_recreate = print_recreate_watchpoint; | |
427cd150 | 16253 | ops->explains_signal = explains_signal_watchpoint; |
2060206e PA |
16254 | |
16255 | /* Masked watchpoints. */ | |
16256 | ops = &masked_watchpoint_breakpoint_ops; | |
16257 | *ops = watchpoint_breakpoint_ops; | |
16258 | ops->insert_location = insert_masked_watchpoint; | |
16259 | ops->remove_location = remove_masked_watchpoint; | |
16260 | ops->resources_needed = resources_needed_masked_watchpoint; | |
16261 | ops->works_in_software_mode = works_in_software_mode_masked_watchpoint; | |
16262 | ops->print_it = print_it_masked_watchpoint; | |
16263 | ops->print_one_detail = print_one_detail_masked_watchpoint; | |
16264 | ops->print_mention = print_mention_masked_watchpoint; | |
16265 | ops->print_recreate = print_recreate_masked_watchpoint; | |
16266 | ||
16267 | /* Tracepoints. */ | |
16268 | ops = &tracepoint_breakpoint_ops; | |
16269 | *ops = base_breakpoint_ops; | |
16270 | ops->re_set = tracepoint_re_set; | |
16271 | ops->breakpoint_hit = tracepoint_breakpoint_hit; | |
16272 | ops->print_one_detail = tracepoint_print_one_detail; | |
16273 | ops->print_mention = tracepoint_print_mention; | |
16274 | ops->print_recreate = tracepoint_print_recreate; | |
983af33b SDJ |
16275 | ops->create_sals_from_address = tracepoint_create_sals_from_address; |
16276 | ops->create_breakpoints_sal = tracepoint_create_breakpoints_sal; | |
16277 | ops->decode_linespec = tracepoint_decode_linespec; | |
16278 | ||
55aa24fb SDJ |
16279 | /* Probe tracepoints. */ |
16280 | ops = &tracepoint_probe_breakpoint_ops; | |
16281 | *ops = tracepoint_breakpoint_ops; | |
16282 | ops->create_sals_from_address = tracepoint_probe_create_sals_from_address; | |
16283 | ops->decode_linespec = tracepoint_probe_decode_linespec; | |
16284 | ||
983af33b SDJ |
16285 | /* Static tracepoints with marker (`-m'). */ |
16286 | ops = &strace_marker_breakpoint_ops; | |
16287 | *ops = tracepoint_breakpoint_ops; | |
16288 | ops->create_sals_from_address = strace_marker_create_sals_from_address; | |
16289 | ops->create_breakpoints_sal = strace_marker_create_breakpoints_sal; | |
16290 | ops->decode_linespec = strace_marker_decode_linespec; | |
2060206e PA |
16291 | |
16292 | /* Fork catchpoints. */ | |
16293 | ops = &catch_fork_breakpoint_ops; | |
16294 | *ops = base_breakpoint_ops; | |
16295 | ops->insert_location = insert_catch_fork; | |
16296 | ops->remove_location = remove_catch_fork; | |
16297 | ops->breakpoint_hit = breakpoint_hit_catch_fork; | |
16298 | ops->print_it = print_it_catch_fork; | |
16299 | ops->print_one = print_one_catch_fork; | |
16300 | ops->print_mention = print_mention_catch_fork; | |
16301 | ops->print_recreate = print_recreate_catch_fork; | |
16302 | ||
16303 | /* Vfork catchpoints. */ | |
16304 | ops = &catch_vfork_breakpoint_ops; | |
16305 | *ops = base_breakpoint_ops; | |
16306 | ops->insert_location = insert_catch_vfork; | |
16307 | ops->remove_location = remove_catch_vfork; | |
16308 | ops->breakpoint_hit = breakpoint_hit_catch_vfork; | |
16309 | ops->print_it = print_it_catch_vfork; | |
16310 | ops->print_one = print_one_catch_vfork; | |
16311 | ops->print_mention = print_mention_catch_vfork; | |
16312 | ops->print_recreate = print_recreate_catch_vfork; | |
16313 | ||
16314 | /* Exec catchpoints. */ | |
16315 | ops = &catch_exec_breakpoint_ops; | |
16316 | *ops = base_breakpoint_ops; | |
16317 | ops->dtor = dtor_catch_exec; | |
16318 | ops->insert_location = insert_catch_exec; | |
16319 | ops->remove_location = remove_catch_exec; | |
16320 | ops->breakpoint_hit = breakpoint_hit_catch_exec; | |
16321 | ops->print_it = print_it_catch_exec; | |
16322 | ops->print_one = print_one_catch_exec; | |
16323 | ops->print_mention = print_mention_catch_exec; | |
16324 | ops->print_recreate = print_recreate_catch_exec; | |
16325 | ||
16326 | /* Syscall catchpoints. */ | |
16327 | ops = &catch_syscall_breakpoint_ops; | |
16328 | *ops = base_breakpoint_ops; | |
16329 | ops->dtor = dtor_catch_syscall; | |
16330 | ops->insert_location = insert_catch_syscall; | |
16331 | ops->remove_location = remove_catch_syscall; | |
16332 | ops->breakpoint_hit = breakpoint_hit_catch_syscall; | |
16333 | ops->print_it = print_it_catch_syscall; | |
16334 | ops->print_one = print_one_catch_syscall; | |
16335 | ops->print_mention = print_mention_catch_syscall; | |
16336 | ops->print_recreate = print_recreate_catch_syscall; | |
edcc5120 TT |
16337 | |
16338 | /* Solib-related catchpoints. */ | |
16339 | ops = &catch_solib_breakpoint_ops; | |
16340 | *ops = base_breakpoint_ops; | |
16341 | ops->dtor = dtor_catch_solib; | |
16342 | ops->insert_location = insert_catch_solib; | |
16343 | ops->remove_location = remove_catch_solib; | |
16344 | ops->breakpoint_hit = breakpoint_hit_catch_solib; | |
16345 | ops->check_status = check_status_catch_solib; | |
16346 | ops->print_it = print_it_catch_solib; | |
16347 | ops->print_one = print_one_catch_solib; | |
16348 | ops->print_mention = print_mention_catch_solib; | |
16349 | ops->print_recreate = print_recreate_catch_solib; | |
e7e0cddf SS |
16350 | |
16351 | ops = &dprintf_breakpoint_ops; | |
16352 | *ops = bkpt_base_breakpoint_ops; | |
5c2b4418 | 16353 | ops->re_set = dprintf_re_set; |
e7e0cddf SS |
16354 | ops->resources_needed = bkpt_resources_needed; |
16355 | ops->print_it = bkpt_print_it; | |
16356 | ops->print_mention = bkpt_print_mention; | |
2d9442cc | 16357 | ops->print_recreate = dprintf_print_recreate; |
9d6e6e84 | 16358 | ops->after_condition_true = dprintf_after_condition_true; |
cd1608cc | 16359 | ops->breakpoint_hit = dprintf_breakpoint_hit; |
2060206e PA |
16360 | } |
16361 | ||
8bfd80db YQ |
16362 | /* Chain containing all defined "enable breakpoint" subcommands. */ |
16363 | ||
16364 | static struct cmd_list_element *enablebreaklist = NULL; | |
16365 | ||
c906108c | 16366 | void |
fba45db2 | 16367 | _initialize_breakpoint (void) |
c906108c SS |
16368 | { |
16369 | struct cmd_list_element *c; | |
16370 | ||
2060206e PA |
16371 | initialize_breakpoint_ops (); |
16372 | ||
84acb35a | 16373 | observer_attach_solib_unloaded (disable_breakpoints_in_unloaded_shlib); |
63644780 | 16374 | observer_attach_free_objfile (disable_breakpoints_in_freed_objfile); |
6c95b8df | 16375 | observer_attach_inferior_exit (clear_syscall_counts); |
1f3b5d1b | 16376 | observer_attach_memory_changed (invalidate_bp_value_on_memory_change); |
84acb35a | 16377 | |
55aa24fb SDJ |
16378 | breakpoint_objfile_key |
16379 | = register_objfile_data_with_cleanup (NULL, free_breakpoint_probes); | |
17450429 | 16380 | |
fa3064dd | 16381 | catch_syscall_inferior_data |
8e260fc0 TT |
16382 | = register_inferior_data_with_cleanup (NULL, |
16383 | catch_syscall_inferior_data_cleanup); | |
fa3064dd | 16384 | |
c906108c SS |
16385 | breakpoint_chain = 0; |
16386 | /* Don't bother to call set_breakpoint_count. $bpnum isn't useful | |
16387 | before a breakpoint is set. */ | |
16388 | breakpoint_count = 0; | |
16389 | ||
1042e4c0 SS |
16390 | tracepoint_count = 0; |
16391 | ||
1bedd215 AC |
16392 | add_com ("ignore", class_breakpoint, ignore_command, _("\ |
16393 | Set ignore-count of breakpoint number N to COUNT.\n\ | |
16394 | Usage is `ignore N COUNT'.")); | |
c906108c | 16395 | if (xdb_commands) |
c5aa993b | 16396 | add_com_alias ("bc", "ignore", class_breakpoint, 1); |
c906108c | 16397 | |
1bedd215 AC |
16398 | add_com ("commands", class_breakpoint, commands_command, _("\ |
16399 | Set commands to be executed when a breakpoint is hit.\n\ | |
c906108c SS |
16400 | Give breakpoint number as argument after \"commands\".\n\ |
16401 | With no argument, the targeted breakpoint is the last one set.\n\ | |
16402 | The commands themselves follow starting on the next line.\n\ | |
16403 | Type a line containing \"end\" to indicate the end of them.\n\ | |
16404 | Give \"silent\" as the first line to make the breakpoint silent;\n\ | |
1bedd215 | 16405 | then no output is printed when it is hit, except what the commands print.")); |
c906108c | 16406 | |
d55637df | 16407 | c = add_com ("condition", class_breakpoint, condition_command, _("\ |
1bedd215 | 16408 | Specify breakpoint number N to break only if COND is true.\n\ |
c906108c | 16409 | Usage is `condition N COND', where N is an integer and COND is an\n\ |
1bedd215 | 16410 | expression to be evaluated whenever breakpoint N is reached.")); |
d55637df | 16411 | set_cmd_completer (c, condition_completer); |
c906108c | 16412 | |
1bedd215 | 16413 | c = add_com ("tbreak", class_breakpoint, tbreak_command, _("\ |
31e2b00f | 16414 | Set a temporary breakpoint.\n\ |
c906108c SS |
16415 | Like \"break\" except the breakpoint is only temporary,\n\ |
16416 | so it will be deleted when hit. Equivalent to \"break\" followed\n\ | |
31e2b00f AS |
16417 | by using \"enable delete\" on the breakpoint number.\n\ |
16418 | \n" | |
16419 | BREAK_ARGS_HELP ("tbreak"))); | |
5ba2abeb | 16420 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 16421 | |
1bedd215 | 16422 | c = add_com ("hbreak", class_breakpoint, hbreak_command, _("\ |
a3be7890 | 16423 | Set a hardware assisted breakpoint.\n\ |
c906108c | 16424 | Like \"break\" except the breakpoint requires hardware support,\n\ |
31e2b00f AS |
16425 | some target hardware may not have this support.\n\ |
16426 | \n" | |
16427 | BREAK_ARGS_HELP ("hbreak"))); | |
5ba2abeb | 16428 | set_cmd_completer (c, location_completer); |
c906108c | 16429 | |
1bedd215 | 16430 | c = add_com ("thbreak", class_breakpoint, thbreak_command, _("\ |
31e2b00f | 16431 | Set a temporary hardware assisted breakpoint.\n\ |
c906108c | 16432 | Like \"hbreak\" except the breakpoint is only temporary,\n\ |
31e2b00f AS |
16433 | so it will be deleted when hit.\n\ |
16434 | \n" | |
16435 | BREAK_ARGS_HELP ("thbreak"))); | |
5ba2abeb | 16436 | set_cmd_completer (c, location_completer); |
c906108c | 16437 | |
1bedd215 AC |
16438 | add_prefix_cmd ("enable", class_breakpoint, enable_command, _("\ |
16439 | Enable some breakpoints.\n\ | |
c906108c SS |
16440 | Give breakpoint numbers (separated by spaces) as arguments.\n\ |
16441 | With no subcommand, breakpoints are enabled until you command otherwise.\n\ | |
16442 | This is used to cancel the effect of the \"disable\" command.\n\ | |
1bedd215 | 16443 | With a subcommand you can enable temporarily."), |
c906108c SS |
16444 | &enablelist, "enable ", 1, &cmdlist); |
16445 | if (xdb_commands) | |
1bedd215 AC |
16446 | add_com ("ab", class_breakpoint, enable_command, _("\ |
16447 | Enable some breakpoints.\n\ | |
c906108c SS |
16448 | Give breakpoint numbers (separated by spaces) as arguments.\n\ |
16449 | With no subcommand, breakpoints are enabled until you command otherwise.\n\ | |
16450 | This is used to cancel the effect of the \"disable\" command.\n\ | |
1bedd215 | 16451 | With a subcommand you can enable temporarily.")); |
c906108c SS |
16452 | |
16453 | add_com_alias ("en", "enable", class_breakpoint, 1); | |
16454 | ||
84951ab5 | 16455 | add_prefix_cmd ("breakpoints", class_breakpoint, enable_command, _("\ |
1bedd215 | 16456 | Enable some breakpoints.\n\ |
c906108c SS |
16457 | Give breakpoint numbers (separated by spaces) as arguments.\n\ |
16458 | This is used to cancel the effect of the \"disable\" command.\n\ | |
1bedd215 | 16459 | May be abbreviated to simply \"enable\".\n"), |
c5aa993b | 16460 | &enablebreaklist, "enable breakpoints ", 1, &enablelist); |
c906108c | 16461 | |
1a966eab AC |
16462 | add_cmd ("once", no_class, enable_once_command, _("\ |
16463 | Enable breakpoints for one hit. Give breakpoint numbers.\n\ | |
16464 | If a breakpoint is hit while enabled in this fashion, it becomes disabled."), | |
c906108c SS |
16465 | &enablebreaklist); |
16466 | ||
1a966eab AC |
16467 | add_cmd ("delete", no_class, enable_delete_command, _("\ |
16468 | Enable breakpoints and delete when hit. Give breakpoint numbers.\n\ | |
16469 | If a breakpoint is hit while enabled in this fashion, it is deleted."), | |
c906108c SS |
16470 | &enablebreaklist); |
16471 | ||
816338b5 SS |
16472 | add_cmd ("count", no_class, enable_count_command, _("\ |
16473 | Enable breakpoints for COUNT hits. Give count and then breakpoint numbers.\n\ | |
16474 | If a breakpoint is hit while enabled in this fashion,\n\ | |
16475 | the count is decremented; when it reaches zero, the breakpoint is disabled."), | |
16476 | &enablebreaklist); | |
16477 | ||
1a966eab AC |
16478 | add_cmd ("delete", no_class, enable_delete_command, _("\ |
16479 | Enable breakpoints and delete when hit. Give breakpoint numbers.\n\ | |
16480 | If a breakpoint is hit while enabled in this fashion, it is deleted."), | |
c906108c SS |
16481 | &enablelist); |
16482 | ||
1a966eab AC |
16483 | add_cmd ("once", no_class, enable_once_command, _("\ |
16484 | Enable breakpoints for one hit. Give breakpoint numbers.\n\ | |
16485 | If a breakpoint is hit while enabled in this fashion, it becomes disabled."), | |
816338b5 SS |
16486 | &enablelist); |
16487 | ||
16488 | add_cmd ("count", no_class, enable_count_command, _("\ | |
16489 | Enable breakpoints for COUNT hits. Give count and then breakpoint numbers.\n\ | |
16490 | If a breakpoint is hit while enabled in this fashion,\n\ | |
16491 | the count is decremented; when it reaches zero, the breakpoint is disabled."), | |
c906108c SS |
16492 | &enablelist); |
16493 | ||
1bedd215 AC |
16494 | add_prefix_cmd ("disable", class_breakpoint, disable_command, _("\ |
16495 | Disable some breakpoints.\n\ | |
c906108c SS |
16496 | Arguments are breakpoint numbers with spaces in between.\n\ |
16497 | To disable all breakpoints, give no argument.\n\ | |
64b9b334 | 16498 | A disabled breakpoint is not forgotten, but has no effect until re-enabled."), |
c906108c SS |
16499 | &disablelist, "disable ", 1, &cmdlist); |
16500 | add_com_alias ("dis", "disable", class_breakpoint, 1); | |
16501 | add_com_alias ("disa", "disable", class_breakpoint, 1); | |
16502 | if (xdb_commands) | |
1bedd215 AC |
16503 | add_com ("sb", class_breakpoint, disable_command, _("\ |
16504 | Disable some breakpoints.\n\ | |
c906108c SS |
16505 | Arguments are breakpoint numbers with spaces in between.\n\ |
16506 | To disable all breakpoints, give no argument.\n\ | |
64b9b334 | 16507 | A disabled breakpoint is not forgotten, but has no effect until re-enabled.")); |
c906108c | 16508 | |
1a966eab AC |
16509 | add_cmd ("breakpoints", class_alias, disable_command, _("\ |
16510 | Disable some breakpoints.\n\ | |
c906108c SS |
16511 | Arguments are breakpoint numbers with spaces in between.\n\ |
16512 | To disable all breakpoints, give no argument.\n\ | |
64b9b334 | 16513 | A disabled breakpoint is not forgotten, but has no effect until re-enabled.\n\ |
1a966eab | 16514 | This command may be abbreviated \"disable\"."), |
c906108c SS |
16515 | &disablelist); |
16516 | ||
1bedd215 AC |
16517 | add_prefix_cmd ("delete", class_breakpoint, delete_command, _("\ |
16518 | Delete some breakpoints or auto-display expressions.\n\ | |
c906108c SS |
16519 | Arguments are breakpoint numbers with spaces in between.\n\ |
16520 | To delete all breakpoints, give no argument.\n\ | |
16521 | \n\ | |
16522 | Also a prefix command for deletion of other GDB objects.\n\ | |
1bedd215 | 16523 | The \"unset\" command is also an alias for \"delete\"."), |
c906108c SS |
16524 | &deletelist, "delete ", 1, &cmdlist); |
16525 | add_com_alias ("d", "delete", class_breakpoint, 1); | |
7f198e01 | 16526 | add_com_alias ("del", "delete", class_breakpoint, 1); |
c906108c | 16527 | if (xdb_commands) |
1bedd215 AC |
16528 | add_com ("db", class_breakpoint, delete_command, _("\ |
16529 | Delete some breakpoints.\n\ | |
c906108c | 16530 | Arguments are breakpoint numbers with spaces in between.\n\ |
1bedd215 | 16531 | To delete all breakpoints, give no argument.\n")); |
c906108c | 16532 | |
1a966eab AC |
16533 | add_cmd ("breakpoints", class_alias, delete_command, _("\ |
16534 | Delete some breakpoints or auto-display expressions.\n\ | |
c906108c SS |
16535 | Arguments are breakpoint numbers with spaces in between.\n\ |
16536 | To delete all breakpoints, give no argument.\n\ | |
1a966eab | 16537 | This command may be abbreviated \"delete\"."), |
c906108c SS |
16538 | &deletelist); |
16539 | ||
1bedd215 AC |
16540 | add_com ("clear", class_breakpoint, clear_command, _("\ |
16541 | Clear breakpoint at specified line or function.\n\ | |
c906108c SS |
16542 | Argument may be line number, function name, or \"*\" and an address.\n\ |
16543 | If line number is specified, all breakpoints in that line are cleared.\n\ | |
16544 | If function is specified, breakpoints at beginning of function are cleared.\n\ | |
1bedd215 AC |
16545 | If an address is specified, breakpoints at that address are cleared.\n\ |
16546 | \n\ | |
16547 | With no argument, clears all breakpoints in the line that the selected frame\n\ | |
c906108c SS |
16548 | is executing in.\n\ |
16549 | \n\ | |
1bedd215 | 16550 | See also the \"delete\" command which clears breakpoints by number.")); |
a6cc4789 | 16551 | add_com_alias ("cl", "clear", class_breakpoint, 1); |
c906108c | 16552 | |
1bedd215 | 16553 | c = add_com ("break", class_breakpoint, break_command, _("\ |
31e2b00f AS |
16554 | Set breakpoint at specified line or function.\n" |
16555 | BREAK_ARGS_HELP ("break"))); | |
5ba2abeb | 16556 | set_cmd_completer (c, location_completer); |
c94fdfd0 | 16557 | |
c906108c SS |
16558 | add_com_alias ("b", "break", class_run, 1); |
16559 | add_com_alias ("br", "break", class_run, 1); | |
16560 | add_com_alias ("bre", "break", class_run, 1); | |
16561 | add_com_alias ("brea", "break", class_run, 1); | |
16562 | ||
7681d515 PM |
16563 | if (xdb_commands) |
16564 | add_com_alias ("ba", "break", class_breakpoint, 1); | |
c906108c SS |
16565 | |
16566 | if (dbx_commands) | |
16567 | { | |
1bedd215 AC |
16568 | add_abbrev_prefix_cmd ("stop", class_breakpoint, stop_command, _("\ |
16569 | Break in function/address or break at a line in the current file."), | |
c5aa993b JM |
16570 | &stoplist, "stop ", 1, &cmdlist); |
16571 | add_cmd ("in", class_breakpoint, stopin_command, | |
1a966eab | 16572 | _("Break in function or address."), &stoplist); |
c5aa993b | 16573 | add_cmd ("at", class_breakpoint, stopat_command, |
1a966eab | 16574 | _("Break at a line in the current file."), &stoplist); |
1bedd215 AC |
16575 | add_com ("status", class_info, breakpoints_info, _("\ |
16576 | Status of user-settable breakpoints, or breakpoint number NUMBER.\n\ | |
c906108c SS |
16577 | The \"Type\" column indicates one of:\n\ |
16578 | \tbreakpoint - normal breakpoint\n\ | |
16579 | \twatchpoint - watchpoint\n\ | |
16580 | The \"Disp\" column contains one of \"keep\", \"del\", or \"dis\" to indicate\n\ | |
16581 | the disposition of the breakpoint after it gets hit. \"dis\" means that the\n\ | |
16582 | breakpoint will be disabled. The \"Address\" and \"What\" columns indicate the\n\ | |
1bedd215 AC |
16583 | address and file/line number respectively.\n\ |
16584 | \n\ | |
16585 | Convenience variable \"$_\" and default examine address for \"x\"\n\ | |
d1aa2f50 NR |
16586 | are set to the address of the last breakpoint listed unless the command\n\ |
16587 | is prefixed with \"server \".\n\n\ | |
c906108c | 16588 | Convenience variable \"$bpnum\" contains the number of the last\n\ |
1bedd215 | 16589 | breakpoint set.")); |
c906108c SS |
16590 | } |
16591 | ||
1bedd215 | 16592 | add_info ("breakpoints", breakpoints_info, _("\ |
e5a67952 | 16593 | Status of specified breakpoints (all user-settable breakpoints if no argument).\n\ |
c906108c SS |
16594 | The \"Type\" column indicates one of:\n\ |
16595 | \tbreakpoint - normal breakpoint\n\ | |
16596 | \twatchpoint - watchpoint\n\ | |
16597 | The \"Disp\" column contains one of \"keep\", \"del\", or \"dis\" to indicate\n\ | |
16598 | the disposition of the breakpoint after it gets hit. \"dis\" means that the\n\ | |
16599 | breakpoint will be disabled. The \"Address\" and \"What\" columns indicate the\n\ | |
1bedd215 AC |
16600 | address and file/line number respectively.\n\ |
16601 | \n\ | |
16602 | Convenience variable \"$_\" and default examine address for \"x\"\n\ | |
d1aa2f50 NR |
16603 | are set to the address of the last breakpoint listed unless the command\n\ |
16604 | is prefixed with \"server \".\n\n\ | |
c906108c | 16605 | Convenience variable \"$bpnum\" contains the number of the last\n\ |
1bedd215 | 16606 | breakpoint set.")); |
c906108c | 16607 | |
6b04bdb7 MS |
16608 | add_info_alias ("b", "breakpoints", 1); |
16609 | ||
c906108c | 16610 | if (xdb_commands) |
1bedd215 AC |
16611 | add_com ("lb", class_breakpoint, breakpoints_info, _("\ |
16612 | Status of user-settable breakpoints, or breakpoint number NUMBER.\n\ | |
c906108c SS |
16613 | The \"Type\" column indicates one of:\n\ |
16614 | \tbreakpoint - normal breakpoint\n\ | |
16615 | \twatchpoint - watchpoint\n\ | |
16616 | The \"Disp\" column contains one of \"keep\", \"del\", or \"dis\" to indicate\n\ | |
16617 | the disposition of the breakpoint after it gets hit. \"dis\" means that the\n\ | |
16618 | breakpoint will be disabled. The \"Address\" and \"What\" columns indicate the\n\ | |
1bedd215 AC |
16619 | address and file/line number respectively.\n\ |
16620 | \n\ | |
16621 | Convenience variable \"$_\" and default examine address for \"x\"\n\ | |
d1aa2f50 NR |
16622 | are set to the address of the last breakpoint listed unless the command\n\ |
16623 | is prefixed with \"server \".\n\n\ | |
c906108c | 16624 | Convenience variable \"$bpnum\" contains the number of the last\n\ |
1bedd215 | 16625 | breakpoint set.")); |
c906108c | 16626 | |
1a966eab AC |
16627 | add_cmd ("breakpoints", class_maintenance, maintenance_info_breakpoints, _("\ |
16628 | Status of all breakpoints, or breakpoint number NUMBER.\n\ | |
c906108c SS |
16629 | The \"Type\" column indicates one of:\n\ |
16630 | \tbreakpoint - normal breakpoint\n\ | |
16631 | \twatchpoint - watchpoint\n\ | |
16632 | \tlongjmp - internal breakpoint used to step through longjmp()\n\ | |
16633 | \tlongjmp resume - internal breakpoint at the target of longjmp()\n\ | |
16634 | \tuntil - internal breakpoint used by the \"until\" command\n\ | |
1a966eab AC |
16635 | \tfinish - internal breakpoint used by the \"finish\" command\n\ |
16636 | The \"Disp\" column contains one of \"keep\", \"del\", or \"dis\" to indicate\n\ | |
c906108c SS |
16637 | the disposition of the breakpoint after it gets hit. \"dis\" means that the\n\ |
16638 | breakpoint will be disabled. The \"Address\" and \"What\" columns indicate the\n\ | |
1a966eab AC |
16639 | address and file/line number respectively.\n\ |
16640 | \n\ | |
16641 | Convenience variable \"$_\" and default examine address for \"x\"\n\ | |
d1aa2f50 NR |
16642 | are set to the address of the last breakpoint listed unless the command\n\ |
16643 | is prefixed with \"server \".\n\n\ | |
c906108c | 16644 | Convenience variable \"$bpnum\" contains the number of the last\n\ |
1a966eab | 16645 | breakpoint set."), |
c906108c SS |
16646 | &maintenanceinfolist); |
16647 | ||
44feb3ce TT |
16648 | add_prefix_cmd ("catch", class_breakpoint, catch_command, _("\ |
16649 | Set catchpoints to catch events."), | |
16650 | &catch_cmdlist, "catch ", | |
16651 | 0/*allow-unknown*/, &cmdlist); | |
16652 | ||
16653 | add_prefix_cmd ("tcatch", class_breakpoint, tcatch_command, _("\ | |
16654 | Set temporary catchpoints to catch events."), | |
16655 | &tcatch_cmdlist, "tcatch ", | |
16656 | 0/*allow-unknown*/, &cmdlist); | |
16657 | ||
44feb3ce TT |
16658 | add_catch_command ("fork", _("Catch calls to fork."), |
16659 | catch_fork_command_1, | |
a96d9b2e | 16660 | NULL, |
44feb3ce TT |
16661 | (void *) (uintptr_t) catch_fork_permanent, |
16662 | (void *) (uintptr_t) catch_fork_temporary); | |
16663 | add_catch_command ("vfork", _("Catch calls to vfork."), | |
16664 | catch_fork_command_1, | |
a96d9b2e | 16665 | NULL, |
44feb3ce TT |
16666 | (void *) (uintptr_t) catch_vfork_permanent, |
16667 | (void *) (uintptr_t) catch_vfork_temporary); | |
16668 | add_catch_command ("exec", _("Catch calls to exec."), | |
16669 | catch_exec_command_1, | |
a96d9b2e SDJ |
16670 | NULL, |
16671 | CATCH_PERMANENT, | |
16672 | CATCH_TEMPORARY); | |
edcc5120 TT |
16673 | add_catch_command ("load", _("Catch loads of shared libraries.\n\ |
16674 | Usage: catch load [REGEX]\n\ | |
16675 | If REGEX is given, only stop for libraries matching the regular expression."), | |
16676 | catch_load_command_1, | |
16677 | NULL, | |
16678 | CATCH_PERMANENT, | |
16679 | CATCH_TEMPORARY); | |
16680 | add_catch_command ("unload", _("Catch unloads of shared libraries.\n\ | |
16681 | Usage: catch unload [REGEX]\n\ | |
16682 | If REGEX is given, only stop for libraries matching the regular expression."), | |
16683 | catch_unload_command_1, | |
16684 | NULL, | |
16685 | CATCH_PERMANENT, | |
16686 | CATCH_TEMPORARY); | |
a96d9b2e SDJ |
16687 | add_catch_command ("syscall", _("\ |
16688 | Catch system calls by their names and/or numbers.\n\ | |
16689 | Arguments say which system calls to catch. If no arguments\n\ | |
16690 | are given, every system call will be caught.\n\ | |
16691 | Arguments, if given, should be one or more system call names\n\ | |
16692 | (if your system supports that), or system call numbers."), | |
16693 | catch_syscall_command_1, | |
16694 | catch_syscall_completer, | |
44feb3ce TT |
16695 | CATCH_PERMANENT, |
16696 | CATCH_TEMPORARY); | |
c5aa993b | 16697 | |
1bedd215 AC |
16698 | c = add_com ("watch", class_breakpoint, watch_command, _("\ |
16699 | Set a watchpoint for an expression.\n\ | |
06a64a0b | 16700 | Usage: watch [-l|-location] EXPRESSION\n\ |
c906108c | 16701 | A watchpoint stops execution of your program whenever the value of\n\ |
06a64a0b TT |
16702 | an expression changes.\n\ |
16703 | If -l or -location is given, this evaluates EXPRESSION and watches\n\ | |
16704 | the memory to which it refers.")); | |
65d12d83 | 16705 | set_cmd_completer (c, expression_completer); |
c906108c | 16706 | |
1bedd215 AC |
16707 | c = add_com ("rwatch", class_breakpoint, rwatch_command, _("\ |
16708 | Set a read watchpoint for an expression.\n\ | |
06a64a0b | 16709 | Usage: rwatch [-l|-location] EXPRESSION\n\ |
c906108c | 16710 | A watchpoint stops execution of your program whenever the value of\n\ |
06a64a0b TT |
16711 | an expression is read.\n\ |
16712 | If -l or -location is given, this evaluates EXPRESSION and watches\n\ | |
16713 | the memory to which it refers.")); | |
65d12d83 | 16714 | set_cmd_completer (c, expression_completer); |
c906108c | 16715 | |
1bedd215 AC |
16716 | c = add_com ("awatch", class_breakpoint, awatch_command, _("\ |
16717 | Set a watchpoint for an expression.\n\ | |
06a64a0b | 16718 | Usage: awatch [-l|-location] EXPRESSION\n\ |
c906108c | 16719 | A watchpoint stops execution of your program whenever the value of\n\ |
06a64a0b TT |
16720 | an expression is either read or written.\n\ |
16721 | If -l or -location is given, this evaluates EXPRESSION and watches\n\ | |
16722 | the memory to which it refers.")); | |
65d12d83 | 16723 | set_cmd_completer (c, expression_completer); |
c906108c | 16724 | |
d77f58be | 16725 | add_info ("watchpoints", watchpoints_info, _("\ |
e5a67952 | 16726 | Status of specified watchpoints (all watchpoints if no argument).")); |
c906108c | 16727 | |
920d2a44 AC |
16728 | /* XXX: cagney/2005-02-23: This should be a boolean, and should |
16729 | respond to changes - contrary to the description. */ | |
85c07804 AC |
16730 | add_setshow_zinteger_cmd ("can-use-hw-watchpoints", class_support, |
16731 | &can_use_hw_watchpoints, _("\ | |
16732 | Set debugger's willingness to use watchpoint hardware."), _("\ | |
16733 | Show debugger's willingness to use watchpoint hardware."), _("\ | |
c906108c SS |
16734 | If zero, gdb will not use hardware for new watchpoints, even if\n\ |
16735 | such is available. (However, any hardware watchpoints that were\n\ | |
16736 | created before setting this to nonzero, will continue to use watchpoint\n\ | |
85c07804 AC |
16737 | hardware.)"), |
16738 | NULL, | |
920d2a44 | 16739 | show_can_use_hw_watchpoints, |
85c07804 | 16740 | &setlist, &showlist); |
c906108c SS |
16741 | |
16742 | can_use_hw_watchpoints = 1; | |
fa8d40ab | 16743 | |
1042e4c0 SS |
16744 | /* Tracepoint manipulation commands. */ |
16745 | ||
16746 | c = add_com ("trace", class_breakpoint, trace_command, _("\ | |
16747 | Set a tracepoint at specified line or function.\n\ | |
16748 | \n" | |
16749 | BREAK_ARGS_HELP ("trace") "\n\ | |
16750 | Do \"help tracepoints\" for info on other tracepoint commands.")); | |
16751 | set_cmd_completer (c, location_completer); | |
16752 | ||
16753 | add_com_alias ("tp", "trace", class_alias, 0); | |
16754 | add_com_alias ("tr", "trace", class_alias, 1); | |
16755 | add_com_alias ("tra", "trace", class_alias, 1); | |
16756 | add_com_alias ("trac", "trace", class_alias, 1); | |
16757 | ||
7a697b8d SS |
16758 | c = add_com ("ftrace", class_breakpoint, ftrace_command, _("\ |
16759 | Set a fast tracepoint at specified line or function.\n\ | |
16760 | \n" | |
16761 | BREAK_ARGS_HELP ("ftrace") "\n\ | |
16762 | Do \"help tracepoints\" for info on other tracepoint commands.")); | |
16763 | set_cmd_completer (c, location_completer); | |
16764 | ||
0fb4aa4b PA |
16765 | c = add_com ("strace", class_breakpoint, strace_command, _("\ |
16766 | Set a static tracepoint at specified line, function or marker.\n\ | |
16767 | \n\ | |
16768 | strace [LOCATION] [if CONDITION]\n\ | |
16769 | LOCATION may be a line number, function name, \"*\" and an address,\n\ | |
16770 | or -m MARKER_ID.\n\ | |
16771 | If a line number is specified, probe the marker at start of code\n\ | |
16772 | for that line. If a function is specified, probe the marker at start\n\ | |
16773 | of code for that function. If an address is specified, probe the marker\n\ | |
16774 | at that exact address. If a marker id is specified, probe the marker\n\ | |
16775 | with that name. With no LOCATION, uses current execution address of\n\ | |
16776 | the selected stack frame.\n\ | |
16777 | Static tracepoints accept an extra collect action -- ``collect $_sdata''.\n\ | |
16778 | This collects arbitrary user data passed in the probe point call to the\n\ | |
16779 | tracing library. You can inspect it when analyzing the trace buffer,\n\ | |
16780 | by printing the $_sdata variable like any other convenience variable.\n\ | |
16781 | \n\ | |
16782 | CONDITION is a boolean expression.\n\ | |
16783 | \n\ | |
d41c0fc8 PA |
16784 | Multiple tracepoints at one place are permitted, and useful if their\n\ |
16785 | conditions are different.\n\ | |
0fb4aa4b PA |
16786 | \n\ |
16787 | Do \"help breakpoints\" for info on other commands dealing with breakpoints.\n\ | |
16788 | Do \"help tracepoints\" for info on other tracepoint commands.")); | |
16789 | set_cmd_completer (c, location_completer); | |
16790 | ||
1042e4c0 | 16791 | add_info ("tracepoints", tracepoints_info, _("\ |
e5a67952 | 16792 | Status of specified tracepoints (all tracepoints if no argument).\n\ |
1042e4c0 SS |
16793 | Convenience variable \"$tpnum\" contains the number of the\n\ |
16794 | last tracepoint set.")); | |
16795 | ||
16796 | add_info_alias ("tp", "tracepoints", 1); | |
16797 | ||
16798 | add_cmd ("tracepoints", class_trace, delete_trace_command, _("\ | |
16799 | Delete specified tracepoints.\n\ | |
16800 | Arguments are tracepoint numbers, separated by spaces.\n\ | |
16801 | No argument means delete all tracepoints."), | |
16802 | &deletelist); | |
7e20dfcd | 16803 | add_alias_cmd ("tr", "tracepoints", class_trace, 1, &deletelist); |
1042e4c0 SS |
16804 | |
16805 | c = add_cmd ("tracepoints", class_trace, disable_trace_command, _("\ | |
16806 | Disable specified tracepoints.\n\ | |
16807 | Arguments are tracepoint numbers, separated by spaces.\n\ | |
16808 | No argument means disable all tracepoints."), | |
16809 | &disablelist); | |
16810 | deprecate_cmd (c, "disable"); | |
16811 | ||
16812 | c = add_cmd ("tracepoints", class_trace, enable_trace_command, _("\ | |
16813 | Enable specified tracepoints.\n\ | |
16814 | Arguments are tracepoint numbers, separated by spaces.\n\ | |
16815 | No argument means enable all tracepoints."), | |
16816 | &enablelist); | |
16817 | deprecate_cmd (c, "enable"); | |
16818 | ||
16819 | add_com ("passcount", class_trace, trace_pass_command, _("\ | |
16820 | Set the passcount for a tracepoint.\n\ | |
16821 | The trace will end when the tracepoint has been passed 'count' times.\n\ | |
16822 | Usage: passcount COUNT TPNUM, where TPNUM may also be \"all\";\n\ | |
16823 | if TPNUM is omitted, passcount refers to the last tracepoint defined.")); | |
16824 | ||
6149aea9 PA |
16825 | add_prefix_cmd ("save", class_breakpoint, save_command, |
16826 | _("Save breakpoint definitions as a script."), | |
16827 | &save_cmdlist, "save ", | |
16828 | 0/*allow-unknown*/, &cmdlist); | |
16829 | ||
16830 | c = add_cmd ("breakpoints", class_breakpoint, save_breakpoints_command, _("\ | |
16831 | Save current breakpoint definitions as a script.\n\ | |
cce7e648 | 16832 | This includes all types of breakpoints (breakpoints, watchpoints,\n\ |
6149aea9 PA |
16833 | catchpoints, tracepoints). Use the 'source' command in another debug\n\ |
16834 | session to restore them."), | |
16835 | &save_cmdlist); | |
16836 | set_cmd_completer (c, filename_completer); | |
16837 | ||
16838 | c = add_cmd ("tracepoints", class_trace, save_tracepoints_command, _("\ | |
1042e4c0 | 16839 | Save current tracepoint definitions as a script.\n\ |
6149aea9 PA |
16840 | Use the 'source' command in another debug session to restore them."), |
16841 | &save_cmdlist); | |
1042e4c0 SS |
16842 | set_cmd_completer (c, filename_completer); |
16843 | ||
6149aea9 PA |
16844 | c = add_com_alias ("save-tracepoints", "save tracepoints", class_trace, 0); |
16845 | deprecate_cmd (c, "save tracepoints"); | |
16846 | ||
1bedd215 | 16847 | add_prefix_cmd ("breakpoint", class_maintenance, set_breakpoint_cmd, _("\ |
fa8d40ab JJ |
16848 | Breakpoint specific settings\n\ |
16849 | Configure various breakpoint-specific variables such as\n\ | |
1bedd215 | 16850 | pending breakpoint behavior"), |
fa8d40ab JJ |
16851 | &breakpoint_set_cmdlist, "set breakpoint ", |
16852 | 0/*allow-unknown*/, &setlist); | |
1bedd215 | 16853 | add_prefix_cmd ("breakpoint", class_maintenance, show_breakpoint_cmd, _("\ |
fa8d40ab JJ |
16854 | Breakpoint specific settings\n\ |
16855 | Configure various breakpoint-specific variables such as\n\ | |
1bedd215 | 16856 | pending breakpoint behavior"), |
fa8d40ab JJ |
16857 | &breakpoint_show_cmdlist, "show breakpoint ", |
16858 | 0/*allow-unknown*/, &showlist); | |
16859 | ||
7915a72c AC |
16860 | add_setshow_auto_boolean_cmd ("pending", no_class, |
16861 | &pending_break_support, _("\ | |
16862 | Set debugger's behavior regarding pending breakpoints."), _("\ | |
16863 | Show debugger's behavior regarding pending breakpoints."), _("\ | |
6e1d7d6c AC |
16864 | If on, an unrecognized breakpoint location will cause gdb to create a\n\ |
16865 | pending breakpoint. If off, an unrecognized breakpoint location results in\n\ | |
16866 | an error. If auto, an unrecognized breakpoint location results in a\n\ | |
7915a72c | 16867 | user-query to see if a pending breakpoint should be created."), |
2c5b56ce | 16868 | NULL, |
920d2a44 | 16869 | show_pending_break_support, |
6e1d7d6c AC |
16870 | &breakpoint_set_cmdlist, |
16871 | &breakpoint_show_cmdlist); | |
fa8d40ab JJ |
16872 | |
16873 | pending_break_support = AUTO_BOOLEAN_AUTO; | |
765dc015 VP |
16874 | |
16875 | add_setshow_boolean_cmd ("auto-hw", no_class, | |
16876 | &automatic_hardware_breakpoints, _("\ | |
16877 | Set automatic usage of hardware breakpoints."), _("\ | |
16878 | Show automatic usage of hardware breakpoints."), _("\ | |
16879 | If set, the debugger will automatically use hardware breakpoints for\n\ | |
16880 | breakpoints set with \"break\" but falling in read-only memory. If not set,\n\ | |
16881 | a warning will be emitted for such breakpoints."), | |
16882 | NULL, | |
16883 | show_automatic_hardware_breakpoints, | |
16884 | &breakpoint_set_cmdlist, | |
16885 | &breakpoint_show_cmdlist); | |
74960c60 | 16886 | |
72d0e2c5 YQ |
16887 | add_setshow_auto_boolean_cmd ("always-inserted", class_support, |
16888 | &always_inserted_mode, _("\ | |
74960c60 VP |
16889 | Set mode for inserting breakpoints."), _("\ |
16890 | Show mode for inserting breakpoints."), _("\ | |
33e5cbd6 PA |
16891 | When this mode is off, breakpoints are inserted in inferior when it is\n\ |
16892 | resumed, and removed when execution stops. When this mode is on,\n\ | |
16893 | breakpoints are inserted immediately and removed only when the user\n\ | |
16894 | deletes the breakpoint. When this mode is auto (which is the default),\n\ | |
16895 | the behaviour depends on the non-stop setting (see help set non-stop).\n\ | |
16896 | In this case, if gdb is controlling the inferior in non-stop mode, gdb\n\ | |
16897 | behaves as if always-inserted mode is on; if gdb is controlling the\n\ | |
16898 | inferior in all-stop mode, gdb behaves as if always-inserted mode is off."), | |
72d0e2c5 YQ |
16899 | NULL, |
16900 | &show_always_inserted_mode, | |
16901 | &breakpoint_set_cmdlist, | |
16902 | &breakpoint_show_cmdlist); | |
f1310107 | 16903 | |
b775012e LM |
16904 | add_setshow_enum_cmd ("condition-evaluation", class_breakpoint, |
16905 | condition_evaluation_enums, | |
16906 | &condition_evaluation_mode_1, _("\ | |
16907 | Set mode of breakpoint condition evaluation."), _("\ | |
16908 | Show mode of breakpoint condition evaluation."), _("\ | |
d1cda5d9 | 16909 | When this is set to \"host\", breakpoint conditions will be\n\ |
b775012e LM |
16910 | evaluated on the host's side by GDB. When it is set to \"target\",\n\ |
16911 | breakpoint conditions will be downloaded to the target (if the target\n\ | |
16912 | supports such feature) and conditions will be evaluated on the target's side.\n\ | |
16913 | If this is set to \"auto\" (default), this will be automatically set to\n\ | |
16914 | \"target\" if it supports condition evaluation, otherwise it will\n\ | |
16915 | be set to \"gdb\""), | |
16916 | &set_condition_evaluation_mode, | |
16917 | &show_condition_evaluation_mode, | |
16918 | &breakpoint_set_cmdlist, | |
16919 | &breakpoint_show_cmdlist); | |
16920 | ||
f1310107 TJB |
16921 | add_com ("break-range", class_breakpoint, break_range_command, _("\ |
16922 | Set a breakpoint for an address range.\n\ | |
16923 | break-range START-LOCATION, END-LOCATION\n\ | |
16924 | where START-LOCATION and END-LOCATION can be one of the following:\n\ | |
16925 | LINENUM, for that line in the current file,\n\ | |
16926 | FILE:LINENUM, for that line in that file,\n\ | |
16927 | +OFFSET, for that number of lines after the current line\n\ | |
16928 | or the start of the range\n\ | |
16929 | FUNCTION, for the first line in that function,\n\ | |
16930 | FILE:FUNCTION, to distinguish among like-named static functions.\n\ | |
16931 | *ADDRESS, for the instruction at that address.\n\ | |
16932 | \n\ | |
16933 | The breakpoint will stop execution of the inferior whenever it executes\n\ | |
16934 | an instruction at any address within the [START-LOCATION, END-LOCATION]\n\ | |
16935 | range (including START-LOCATION and END-LOCATION).")); | |
16936 | ||
e7e0cddf SS |
16937 | c = add_com ("dprintf", class_breakpoint, dprintf_command, _("\ |
16938 | Set a dynamic printf at specified line or function.\n\ | |
16939 | dprintf location,format string,arg1,arg2,...\n\ | |
16940 | location may be a line number, function name, or \"*\" and an address.\n\ | |
16941 | If a line number is specified, break at start of code for that line.\n\ | |
0e4777df | 16942 | If a function is specified, break at start of code for that function.")); |
e7e0cddf SS |
16943 | set_cmd_completer (c, location_completer); |
16944 | ||
16945 | add_setshow_enum_cmd ("dprintf-style", class_support, | |
16946 | dprintf_style_enums, &dprintf_style, _("\ | |
16947 | Set the style of usage for dynamic printf."), _("\ | |
16948 | Show the style of usage for dynamic printf."), _("\ | |
16949 | This setting chooses how GDB will do a dynamic printf.\n\ | |
16950 | If the value is \"gdb\", then the printing is done by GDB to its own\n\ | |
16951 | console, as with the \"printf\" command.\n\ | |
16952 | If the value is \"call\", the print is done by calling a function in your\n\ | |
16953 | program; by default printf(), but you can choose a different function or\n\ | |
16954 | output stream by setting dprintf-function and dprintf-channel."), | |
16955 | update_dprintf_commands, NULL, | |
16956 | &setlist, &showlist); | |
16957 | ||
16958 | dprintf_function = xstrdup ("printf"); | |
16959 | add_setshow_string_cmd ("dprintf-function", class_support, | |
16960 | &dprintf_function, _("\ | |
16961 | Set the function to use for dynamic printf"), _("\ | |
16962 | Show the function to use for dynamic printf"), NULL, | |
16963 | update_dprintf_commands, NULL, | |
16964 | &setlist, &showlist); | |
16965 | ||
16966 | dprintf_channel = xstrdup (""); | |
16967 | add_setshow_string_cmd ("dprintf-channel", class_support, | |
16968 | &dprintf_channel, _("\ | |
16969 | Set the channel to use for dynamic printf"), _("\ | |
16970 | Show the channel to use for dynamic printf"), NULL, | |
16971 | update_dprintf_commands, NULL, | |
16972 | &setlist, &showlist); | |
16973 | ||
d3ce09f5 SS |
16974 | add_setshow_boolean_cmd ("disconnected-dprintf", no_class, |
16975 | &disconnected_dprintf, _("\ | |
16976 | Set whether dprintf continues after GDB disconnects."), _("\ | |
16977 | Show whether dprintf continues after GDB disconnects."), _("\ | |
16978 | Use this to let dprintf commands continue to hit and produce output\n\ | |
16979 | even if GDB disconnects or detaches from the target."), | |
16980 | NULL, | |
16981 | NULL, | |
16982 | &setlist, &showlist); | |
16983 | ||
16984 | add_com ("agent-printf", class_vars, agent_printf_command, _("\ | |
16985 | agent-printf \"printf format string\", arg1, arg2, arg3, ..., argn\n\ | |
16986 | (target agent only) This is useful for formatted output in user-defined commands.")); | |
16987 | ||
765dc015 | 16988 | automatic_hardware_breakpoints = 1; |
f3b1572e PA |
16989 | |
16990 | observer_attach_about_to_proceed (breakpoint_about_to_proceed); | |
49fa26b0 | 16991 | observer_attach_thread_exit (remove_threaded_breakpoints); |
c906108c | 16992 | } |