Commit | Line | Data |
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c906108c | 1 | /* Tracing functionality for remote targets in custom GDB protocol |
9f60d481 | 2 | |
6aba47ca | 3 | Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, |
0fb0cc75 | 4 | 2007, 2008, 2009 Free Software Foundation, Inc. |
c906108c | 5 | |
c5aa993b | 6 | This file is part of GDB. |
c906108c | 7 | |
c5aa993b JM |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 11 | (at your option) any later version. |
c906108c | 12 | |
c5aa993b JM |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
c906108c | 17 | |
c5aa993b | 18 | You should have received a copy of the GNU General Public License |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
20 | |
21 | #include "defs.h" | |
22 | #include "symtab.h" | |
23 | #include "frame.h" | |
c906108c SS |
24 | #include "gdbtypes.h" |
25 | #include "expression.h" | |
26 | #include "gdbcmd.h" | |
27 | #include "value.h" | |
28 | #include "target.h" | |
29 | #include "language.h" | |
30 | #include "gdb_string.h" | |
104c1213 | 31 | #include "inferior.h" |
1042e4c0 | 32 | #include "breakpoint.h" |
104c1213 | 33 | #include "tracepoint.h" |
c2c6d25f | 34 | #include "remote.h" |
c5f0f3d0 | 35 | #include "linespec.h" |
4e052eda | 36 | #include "regcache.h" |
c94fdfd0 | 37 | #include "completer.h" |
fe898f56 | 38 | #include "block.h" |
de4f826b | 39 | #include "dictionary.h" |
383f836e | 40 | #include "observer.h" |
029a67e4 | 41 | #include "user-regs.h" |
79a45b7d | 42 | #include "valprint.h" |
c906108c SS |
43 | |
44 | #include "ax.h" | |
45 | #include "ax-gdb.h" | |
46 | ||
47 | /* readline include files */ | |
dbda9972 AC |
48 | #include "readline/readline.h" |
49 | #include "readline/history.h" | |
c906108c SS |
50 | |
51 | /* readline defines this. */ | |
52 | #undef savestring | |
53 | ||
54 | #ifdef HAVE_UNISTD_H | |
55 | #include <unistd.h> | |
56 | #endif | |
57 | ||
d183932d MS |
58 | /* Maximum length of an agent aexpression. |
59 | This accounts for the fact that packets are limited to 400 bytes | |
c906108c SS |
60 | (which includes everything -- including the checksum), and assumes |
61 | the worst case of maximum length for each of the pieces of a | |
62 | continuation packet. | |
c5aa993b | 63 | |
c906108c SS |
64 | NOTE: expressions get mem2hex'ed otherwise this would be twice as |
65 | large. (400 - 31)/2 == 184 */ | |
66 | #define MAX_AGENT_EXPR_LEN 184 | |
67 | ||
68 | ||
9a4105ab AC |
69 | extern void (*deprecated_readline_begin_hook) (char *, ...); |
70 | extern char *(*deprecated_readline_hook) (char *); | |
71 | extern void (*deprecated_readline_end_hook) (void); | |
c906108c | 72 | |
104c1213 JM |
73 | /* GDB commands implemented in other modules: |
74 | */ | |
75 | ||
a14ed312 | 76 | extern void output_command (char *, int); |
104c1213 | 77 | |
c906108c SS |
78 | /* |
79 | Tracepoint.c: | |
80 | ||
81 | This module defines the following debugger commands: | |
82 | trace : set a tracepoint on a function, line, or address. | |
83 | info trace : list all debugger-defined tracepoints. | |
84 | delete trace : delete one or more tracepoints. | |
85 | enable trace : enable one or more tracepoints. | |
86 | disable trace : disable one or more tracepoints. | |
87 | actions : specify actions to be taken at a tracepoint. | |
88 | passcount : specify a pass count for a tracepoint. | |
89 | tstart : start a trace experiment. | |
90 | tstop : stop a trace experiment. | |
91 | tstatus : query the status of a trace experiment. | |
92 | tfind : find a trace frame in the trace buffer. | |
93 | tdump : print everything collected at the current tracepoint. | |
94 | save-tracepoints : write tracepoint setup into a file. | |
95 | ||
96 | This module defines the following user-visible debugger variables: | |
97 | $trace_frame : sequence number of trace frame currently being debugged. | |
98 | $trace_line : source line of trace frame currently being debugged. | |
99 | $trace_file : source file of trace frame currently being debugged. | |
100 | $tracepoint : tracepoint number of trace frame currently being debugged. | |
c5aa993b | 101 | */ |
c906108c SS |
102 | |
103 | ||
104 | /* ======= Important global variables: ======= */ | |
105 | ||
c906108c SS |
106 | /* Number of last traceframe collected. */ |
107 | static int traceframe_number; | |
108 | ||
109 | /* Tracepoint for last traceframe collected. */ | |
110 | static int tracepoint_number; | |
111 | ||
112 | /* Symbol for function for last traceframe collected */ | |
113 | static struct symbol *traceframe_fun; | |
114 | ||
115 | /* Symtab and line for last traceframe collected */ | |
116 | static struct symtab_and_line traceframe_sal; | |
117 | ||
118 | /* Tracing command lists */ | |
119 | static struct cmd_list_element *tfindlist; | |
120 | ||
121 | /* ======= Important command functions: ======= */ | |
a14ed312 KB |
122 | static void trace_actions_command (char *, int); |
123 | static void trace_start_command (char *, int); | |
124 | static void trace_stop_command (char *, int); | |
125 | static void trace_status_command (char *, int); | |
126 | static void trace_find_command (char *, int); | |
127 | static void trace_find_pc_command (char *, int); | |
128 | static void trace_find_tracepoint_command (char *, int); | |
129 | static void trace_find_line_command (char *, int); | |
130 | static void trace_find_range_command (char *, int); | |
131 | static void trace_find_outside_command (char *, int); | |
132 | static void tracepoint_save_command (char *, int); | |
133 | static void trace_dump_command (char *, int); | |
c906108c SS |
134 | |
135 | /* support routines */ | |
c906108c SS |
136 | |
137 | struct collection_list; | |
a14ed312 | 138 | static void add_aexpr (struct collection_list *, struct agent_expr *); |
47b667de | 139 | static char *mem2hex (gdb_byte *, char *, int); |
a14ed312 KB |
140 | static void add_register (struct collection_list *collection, |
141 | unsigned int regno); | |
1042e4c0 | 142 | static struct cleanup *make_cleanup_free_actions (struct breakpoint *t); |
a14ed312 KB |
143 | static void free_actions_list (char **actions_list); |
144 | static void free_actions_list_cleanup_wrapper (void *); | |
392a587b | 145 | |
a14ed312 | 146 | extern void _initialize_tracepoint (void); |
c906108c SS |
147 | |
148 | /* Utility: returns true if "target remote" */ | |
149 | static int | |
fba45db2 | 150 | target_is_remote (void) |
c906108c SS |
151 | { |
152 | if (current_target.to_shortname && | |
549678da NS |
153 | (strcmp (current_target.to_shortname, "remote") == 0 |
154 | || strcmp (current_target.to_shortname, "extended-remote") == 0)) | |
c906108c SS |
155 | return 1; |
156 | else | |
157 | return 0; | |
158 | } | |
159 | ||
160 | /* Utility: generate error from an incoming stub packet. */ | |
c5aa993b | 161 | static void |
fba45db2 | 162 | trace_error (char *buf) |
c906108c SS |
163 | { |
164 | if (*buf++ != 'E') | |
165 | return; /* not an error msg */ | |
c5aa993b | 166 | switch (*buf) |
c906108c SS |
167 | { |
168 | case '1': /* malformed packet error */ | |
169 | if (*++buf == '0') /* general case: */ | |
8a3fe4f8 | 170 | error (_("tracepoint.c: error in outgoing packet.")); |
c906108c | 171 | else |
8a3fe4f8 | 172 | error (_("tracepoint.c: error in outgoing packet at field #%ld."), |
c906108c SS |
173 | strtol (buf, NULL, 16)); |
174 | case '2': | |
8a3fe4f8 | 175 | error (_("trace API error 0x%s."), ++buf); |
c906108c | 176 | default: |
8a3fe4f8 | 177 | error (_("Target returns error code '%s'."), buf); |
c906108c SS |
178 | } |
179 | } | |
180 | ||
d183932d | 181 | /* Utility: wait for reply from stub, while accepting "O" packets. */ |
c906108c | 182 | static char * |
6d820c5c DJ |
183 | remote_get_noisy_reply (char **buf_p, |
184 | long *sizeof_buf) | |
c906108c | 185 | { |
d183932d | 186 | do /* Loop on reply from remote stub. */ |
c906108c | 187 | { |
6d820c5c | 188 | char *buf; |
c5aa993b | 189 | QUIT; /* allow user to bail out with ^C */ |
6d820c5c DJ |
190 | getpkt (buf_p, sizeof_buf, 0); |
191 | buf = *buf_p; | |
c906108c | 192 | if (buf[0] == 0) |
8a3fe4f8 | 193 | error (_("Target does not support this command.")); |
c906108c SS |
194 | else if (buf[0] == 'E') |
195 | trace_error (buf); | |
196 | else if (buf[0] == 'O' && | |
197 | buf[1] != 'K') | |
198 | remote_console_output (buf + 1); /* 'O' message from stub */ | |
199 | else | |
c5aa993b JM |
200 | return buf; /* here's the actual reply */ |
201 | } | |
202 | while (1); | |
c906108c SS |
203 | } |
204 | ||
c906108c SS |
205 | /* Set traceframe number to NUM. */ |
206 | static void | |
fba45db2 | 207 | set_traceframe_num (int num) |
c906108c SS |
208 | { |
209 | traceframe_number = num; | |
210 | set_internalvar (lookup_internalvar ("trace_frame"), | |
8b9b9e1a | 211 | value_from_longest (builtin_type_int32, (LONGEST) num)); |
c906108c SS |
212 | } |
213 | ||
214 | /* Set tracepoint number to NUM. */ | |
215 | static void | |
fba45db2 | 216 | set_tracepoint_num (int num) |
c906108c SS |
217 | { |
218 | tracepoint_number = num; | |
219 | set_internalvar (lookup_internalvar ("tracepoint"), | |
8b9b9e1a | 220 | value_from_longest (builtin_type_int32, (LONGEST) num)); |
c906108c SS |
221 | } |
222 | ||
223 | /* Set externally visible debug variables for querying/printing | |
224 | the traceframe context (line, function, file) */ | |
225 | ||
226 | static void | |
fba45db2 | 227 | set_traceframe_context (CORE_ADDR trace_pc) |
c906108c SS |
228 | { |
229 | static struct type *func_string, *file_string; | |
c5aa993b | 230 | static struct type *func_range, *file_range; |
f976f6d4 AC |
231 | struct value *func_val; |
232 | struct value *file_val; | |
c906108c SS |
233 | int len; |
234 | ||
d183932d | 235 | if (trace_pc == -1) /* Cease debugging any trace buffers. */ |
c906108c SS |
236 | { |
237 | traceframe_fun = 0; | |
238 | traceframe_sal.pc = traceframe_sal.line = 0; | |
239 | traceframe_sal.symtab = NULL; | |
c5aa993b | 240 | set_internalvar (lookup_internalvar ("trace_func"), |
8b9b9e1a | 241 | allocate_value (builtin_type_void)); |
c5aa993b | 242 | set_internalvar (lookup_internalvar ("trace_file"), |
8b9b9e1a | 243 | allocate_value (builtin_type_void)); |
c906108c | 244 | set_internalvar (lookup_internalvar ("trace_line"), |
8b9b9e1a | 245 | value_from_longest (builtin_type_int32, |
d183932d | 246 | (LONGEST) - 1)); |
c906108c SS |
247 | return; |
248 | } | |
249 | ||
d183932d | 250 | /* Save as globals for internal use. */ |
c906108c SS |
251 | traceframe_sal = find_pc_line (trace_pc, 0); |
252 | traceframe_fun = find_pc_function (trace_pc); | |
253 | ||
d183932d MS |
254 | /* Save linenumber as "$trace_line", a debugger variable visible to |
255 | users. */ | |
c906108c | 256 | set_internalvar (lookup_internalvar ("trace_line"), |
8b9b9e1a | 257 | value_from_longest (builtin_type_int32, |
c906108c SS |
258 | (LONGEST) traceframe_sal.line)); |
259 | ||
d183932d MS |
260 | /* Save func name as "$trace_func", a debugger variable visible to |
261 | users. */ | |
c5aa993b | 262 | if (traceframe_fun == NULL || |
3567439c | 263 | SYMBOL_LINKAGE_NAME (traceframe_fun) == NULL) |
c5aa993b | 264 | set_internalvar (lookup_internalvar ("trace_func"), |
8b9b9e1a | 265 | allocate_value (builtin_type_void)); |
c906108c SS |
266 | else |
267 | { | |
3567439c | 268 | len = strlen (SYMBOL_LINKAGE_NAME (traceframe_fun)); |
c5aa993b | 269 | func_range = create_range_type (func_range, |
8b9b9e1a | 270 | builtin_type_int32, 0, len - 1); |
c5aa993b | 271 | func_string = create_array_type (func_string, |
8b9b9e1a | 272 | builtin_type_true_char, func_range); |
c906108c | 273 | func_val = allocate_value (func_string); |
04624583 | 274 | deprecated_set_value_type (func_val, func_string); |
990a07ab | 275 | memcpy (value_contents_raw (func_val), |
3567439c | 276 | SYMBOL_LINKAGE_NAME (traceframe_fun), |
c906108c | 277 | len); |
88e3b34b | 278 | deprecated_set_value_modifiable (func_val, 0); |
c906108c SS |
279 | set_internalvar (lookup_internalvar ("trace_func"), func_val); |
280 | } | |
281 | ||
d183932d MS |
282 | /* Save file name as "$trace_file", a debugger variable visible to |
283 | users. */ | |
c5aa993b | 284 | if (traceframe_sal.symtab == NULL || |
c906108c | 285 | traceframe_sal.symtab->filename == NULL) |
c5aa993b | 286 | set_internalvar (lookup_internalvar ("trace_file"), |
8b9b9e1a | 287 | allocate_value (builtin_type_void)); |
c906108c SS |
288 | else |
289 | { | |
290 | len = strlen (traceframe_sal.symtab->filename); | |
c5aa993b | 291 | file_range = create_range_type (file_range, |
8b9b9e1a | 292 | builtin_type_int32, 0, len - 1); |
c5aa993b | 293 | file_string = create_array_type (file_string, |
8b9b9e1a | 294 | builtin_type_true_char, file_range); |
c906108c | 295 | file_val = allocate_value (file_string); |
04624583 | 296 | deprecated_set_value_type (file_val, file_string); |
990a07ab | 297 | memcpy (value_contents_raw (file_val), |
c5aa993b | 298 | traceframe_sal.symtab->filename, |
c906108c | 299 | len); |
88e3b34b | 300 | deprecated_set_value_modifiable (file_val, 0); |
c906108c SS |
301 | set_internalvar (lookup_internalvar ("trace_file"), file_val); |
302 | } | |
303 | } | |
304 | ||
c906108c SS |
305 | /* ACTIONS functions: */ |
306 | ||
307 | /* Prototypes for action-parsing utility commands */ | |
1042e4c0 | 308 | static void read_actions (struct breakpoint *); |
c906108c SS |
309 | |
310 | /* The three functions: | |
c5aa993b JM |
311 | collect_pseudocommand, |
312 | while_stepping_pseudocommand, and | |
313 | end_actions_pseudocommand | |
c906108c SS |
314 | are placeholders for "commands" that are actually ONLY to be used |
315 | within a tracepoint action list. If the actual function is ever called, | |
316 | it means that somebody issued the "command" at the top level, | |
317 | which is always an error. */ | |
318 | ||
1042e4c0 | 319 | void |
fba45db2 | 320 | end_actions_pseudocommand (char *args, int from_tty) |
c906108c | 321 | { |
8a3fe4f8 | 322 | error (_("This command cannot be used at the top level.")); |
c906108c SS |
323 | } |
324 | ||
1042e4c0 | 325 | void |
fba45db2 | 326 | while_stepping_pseudocommand (char *args, int from_tty) |
c906108c | 327 | { |
8a3fe4f8 | 328 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
329 | } |
330 | ||
331 | static void | |
fba45db2 | 332 | collect_pseudocommand (char *args, int from_tty) |
c906108c | 333 | { |
8a3fe4f8 | 334 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
335 | } |
336 | ||
337 | /* Enter a list of actions for a tracepoint. */ | |
338 | static void | |
fba45db2 | 339 | trace_actions_command (char *args, int from_tty) |
c906108c | 340 | { |
1042e4c0 | 341 | struct breakpoint *t; |
c906108c SS |
342 | char tmpbuf[128]; |
343 | char *end_msg = "End with a line saying just \"end\"."; | |
344 | ||
c2d11a7d | 345 | t = get_tracepoint_by_number (&args, 0, 1); |
7a292a7a | 346 | if (t) |
c906108c SS |
347 | { |
348 | sprintf (tmpbuf, "Enter actions for tracepoint %d, one per line.", | |
349 | t->number); | |
350 | ||
351 | if (from_tty) | |
352 | { | |
9a4105ab AC |
353 | if (deprecated_readline_begin_hook) |
354 | (*deprecated_readline_begin_hook) ("%s %s\n", tmpbuf, end_msg); | |
c906108c SS |
355 | else if (input_from_terminal_p ()) |
356 | printf_filtered ("%s\n%s\n", tmpbuf, end_msg); | |
357 | } | |
358 | ||
359 | free_actions (t); | |
360 | t->step_count = 0; /* read_actions may set this */ | |
361 | read_actions (t); | |
362 | ||
9a4105ab AC |
363 | if (deprecated_readline_end_hook) |
364 | (*deprecated_readline_end_hook) (); | |
c906108c SS |
365 | /* tracepoints_changed () */ |
366 | } | |
5c44784c | 367 | /* else just return */ |
c906108c SS |
368 | } |
369 | ||
370 | /* worker function */ | |
371 | static void | |
1042e4c0 | 372 | read_actions (struct breakpoint *t) |
c906108c SS |
373 | { |
374 | char *line; | |
375 | char *prompt1 = "> ", *prompt2 = " > "; | |
376 | char *prompt = prompt1; | |
377 | enum actionline_type linetype; | |
378 | extern FILE *instream; | |
379 | struct action_line *next = NULL, *temp; | |
380 | struct cleanup *old_chain; | |
381 | ||
382 | /* Control-C quits instantly if typed while in this loop | |
383 | since it should not wait until the user types a newline. */ | |
384 | immediate_quit++; | |
1a6fae3c MK |
385 | /* FIXME: kettenis/20010823: Something is wrong here. In this file |
386 | STOP_SIGNAL is never defined. So this code has been left out, at | |
387 | least for quite a while now. Replacing STOP_SIGNAL with SIGTSTP | |
388 | leads to compilation failures since the variable job_control | |
389 | isn't declared. Leave this alone for now. */ | |
c906108c SS |
390 | #ifdef STOP_SIGNAL |
391 | if (job_control) | |
362646f5 | 392 | signal (STOP_SIGNAL, handle_stop_sig); |
c906108c | 393 | #endif |
74b7792f | 394 | old_chain = make_cleanup_free_actions (t); |
c906108c SS |
395 | while (1) |
396 | { | |
d183932d MS |
397 | /* Make sure that all output has been output. Some machines may |
398 | let you get away with leaving out some of the gdb_flush, but | |
399 | not all. */ | |
c906108c SS |
400 | wrap_here (""); |
401 | gdb_flush (gdb_stdout); | |
402 | gdb_flush (gdb_stderr); | |
403 | ||
9a4105ab AC |
404 | if (deprecated_readline_hook && instream == NULL) |
405 | line = (*deprecated_readline_hook) (prompt); | |
c906108c SS |
406 | else if (instream == stdin && ISATTY (instream)) |
407 | { | |
b4f5539f | 408 | line = gdb_readline_wrapper (prompt); |
c5aa993b | 409 | if (line && *line) /* add it to command history */ |
c906108c SS |
410 | add_history (line); |
411 | } | |
412 | else | |
413 | line = gdb_readline (0); | |
414 | ||
549678da | 415 | if (!line) |
d844e34b JB |
416 | { |
417 | line = xstrdup ("end"); | |
418 | printf_filtered ("end\n"); | |
419 | } | |
549678da | 420 | |
c906108c SS |
421 | linetype = validate_actionline (&line, t); |
422 | if (linetype == BADLINE) | |
c5aa993b | 423 | continue; /* already warned -- collect another line */ |
c906108c SS |
424 | |
425 | temp = xmalloc (sizeof (struct action_line)); | |
426 | temp->next = NULL; | |
427 | temp->action = line; | |
428 | ||
429 | if (next == NULL) /* first action for this tracepoint? */ | |
430 | t->actions = next = temp; | |
431 | else | |
432 | { | |
433 | next->next = temp; | |
434 | next = temp; | |
435 | } | |
436 | ||
437 | if (linetype == STEPPING) /* begin "while-stepping" */ | |
7a292a7a SS |
438 | { |
439 | if (prompt == prompt2) | |
440 | { | |
8a3fe4f8 | 441 | warning (_("Already processing 'while-stepping'")); |
7a292a7a SS |
442 | continue; |
443 | } | |
444 | else | |
445 | prompt = prompt2; /* change prompt for stepping actions */ | |
446 | } | |
c906108c | 447 | else if (linetype == END) |
7a292a7a SS |
448 | { |
449 | if (prompt == prompt2) | |
450 | { | |
451 | prompt = prompt1; /* end of single-stepping actions */ | |
452 | } | |
453 | else | |
c5aa993b | 454 | { /* end of actions */ |
7a292a7a SS |
455 | if (t->actions->next == NULL) |
456 | { | |
d183932d MS |
457 | /* An "end" all by itself with no other actions |
458 | means this tracepoint has no actions. | |
459 | Discard empty list. */ | |
7a292a7a SS |
460 | free_actions (t); |
461 | } | |
462 | break; | |
463 | } | |
464 | } | |
c906108c SS |
465 | } |
466 | #ifdef STOP_SIGNAL | |
467 | if (job_control) | |
468 | signal (STOP_SIGNAL, SIG_DFL); | |
469 | #endif | |
8edbea78 | 470 | immediate_quit--; |
c906108c SS |
471 | discard_cleanups (old_chain); |
472 | } | |
473 | ||
474 | /* worker function */ | |
475 | enum actionline_type | |
1042e4c0 | 476 | validate_actionline (char **line, struct breakpoint *t) |
c906108c SS |
477 | { |
478 | struct cmd_list_element *c; | |
479 | struct expression *exp = NULL; | |
c906108c SS |
480 | struct cleanup *old_chain = NULL; |
481 | char *p; | |
482 | ||
15255275 MS |
483 | /* if EOF is typed, *line is NULL */ |
484 | if (*line == NULL) | |
485 | return END; | |
486 | ||
104c1213 | 487 | for (p = *line; isspace ((int) *p);) |
c906108c SS |
488 | p++; |
489 | ||
d183932d MS |
490 | /* Symbol lookup etc. */ |
491 | if (*p == '\0') /* empty line: just prompt for another line. */ | |
c906108c SS |
492 | return BADLINE; |
493 | ||
c5aa993b | 494 | if (*p == '#') /* comment line */ |
c906108c SS |
495 | return GENERIC; |
496 | ||
497 | c = lookup_cmd (&p, cmdlist, "", -1, 1); | |
498 | if (c == 0) | |
499 | { | |
8a3fe4f8 | 500 | warning (_("'%s' is not an action that I know, or is ambiguous."), |
d183932d | 501 | p); |
c906108c SS |
502 | return BADLINE; |
503 | } | |
c5aa993b | 504 | |
bbaca940 | 505 | if (cmd_cfunc_eq (c, collect_pseudocommand)) |
c906108c SS |
506 | { |
507 | struct agent_expr *aexpr; | |
508 | struct agent_reqs areqs; | |
509 | ||
c5aa993b JM |
510 | do |
511 | { /* repeat over a comma-separated list */ | |
512 | QUIT; /* allow user to bail out with ^C */ | |
104c1213 | 513 | while (isspace ((int) *p)) |
c5aa993b | 514 | p++; |
c906108c | 515 | |
c5aa993b JM |
516 | if (*p == '$') /* look for special pseudo-symbols */ |
517 | { | |
c5aa993b JM |
518 | if ((0 == strncasecmp ("reg", p + 1, 3)) || |
519 | (0 == strncasecmp ("arg", p + 1, 3)) || | |
520 | (0 == strncasecmp ("loc", p + 1, 3))) | |
521 | { | |
522 | p = strchr (p, ','); | |
523 | continue; | |
524 | } | |
d183932d | 525 | /* else fall thru, treat p as an expression and parse it! */ |
c5aa993b | 526 | } |
1042e4c0 | 527 | exp = parse_exp_1 (&p, block_for_pc (t->loc->address), 1); |
c13c43fd | 528 | old_chain = make_cleanup (free_current_contents, &exp); |
c906108c | 529 | |
c5aa993b JM |
530 | if (exp->elts[0].opcode == OP_VAR_VALUE) |
531 | { | |
532 | if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_CONST) | |
533 | { | |
8a3fe4f8 | 534 | warning (_("constant %s (value %ld) will not be collected."), |
3567439c | 535 | SYMBOL_PRINT_NAME (exp->elts[2].symbol), |
c5aa993b JM |
536 | SYMBOL_VALUE (exp->elts[2].symbol)); |
537 | return BADLINE; | |
538 | } | |
539 | else if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_OPTIMIZED_OUT) | |
540 | { | |
8a3fe4f8 | 541 | warning (_("%s is optimized away and cannot be collected."), |
3567439c | 542 | SYMBOL_PRINT_NAME (exp->elts[2].symbol)); |
c5aa993b JM |
543 | return BADLINE; |
544 | } | |
545 | } | |
c906108c | 546 | |
d183932d MS |
547 | /* We have something to collect, make sure that the expr to |
548 | bytecode translator can handle it and that it's not too | |
549 | long. */ | |
1042e4c0 | 550 | aexpr = gen_trace_for_expr (t->loc->address, exp); |
f23d52e0 | 551 | make_cleanup_free_agent_expr (aexpr); |
c906108c | 552 | |
c5aa993b | 553 | if (aexpr->len > MAX_AGENT_EXPR_LEN) |
8a3fe4f8 | 554 | error (_("expression too complicated, try simplifying")); |
c906108c | 555 | |
c5aa993b | 556 | ax_reqs (aexpr, &areqs); |
b8c9b27d | 557 | (void) make_cleanup (xfree, areqs.reg_mask); |
c906108c | 558 | |
c5aa993b | 559 | if (areqs.flaw != agent_flaw_none) |
8a3fe4f8 | 560 | error (_("malformed expression")); |
c906108c | 561 | |
c5aa993b | 562 | if (areqs.min_height < 0) |
8a3fe4f8 | 563 | error (_("gdb: Internal error: expression has min height < 0")); |
c906108c | 564 | |
c5aa993b | 565 | if (areqs.max_height > 20) |
8a3fe4f8 | 566 | error (_("expression too complicated, try simplifying")); |
c906108c | 567 | |
c5aa993b JM |
568 | do_cleanups (old_chain); |
569 | } | |
570 | while (p && *p++ == ','); | |
c906108c SS |
571 | return GENERIC; |
572 | } | |
bbaca940 | 573 | else if (cmd_cfunc_eq (c, while_stepping_pseudocommand)) |
c906108c | 574 | { |
c5aa993b | 575 | char *steparg; /* in case warning is necessary */ |
c906108c | 576 | |
104c1213 | 577 | while (isspace ((int) *p)) |
c906108c SS |
578 | p++; |
579 | steparg = p; | |
580 | ||
581 | if (*p == '\0' || | |
582 | (t->step_count = strtol (p, &p, 0)) == 0) | |
583 | { | |
8a3fe4f8 | 584 | warning (_("'%s': bad step-count; command ignored."), *line); |
c906108c SS |
585 | return BADLINE; |
586 | } | |
587 | return STEPPING; | |
588 | } | |
bbaca940 | 589 | else if (cmd_cfunc_eq (c, end_actions_pseudocommand)) |
c906108c SS |
590 | return END; |
591 | else | |
592 | { | |
8a3fe4f8 | 593 | warning (_("'%s' is not a supported tracepoint action."), *line); |
c906108c SS |
594 | return BADLINE; |
595 | } | |
596 | } | |
597 | ||
598 | /* worker function */ | |
c5aa993b | 599 | void |
1042e4c0 | 600 | free_actions (struct breakpoint *t) |
c906108c SS |
601 | { |
602 | struct action_line *line, *next; | |
603 | ||
604 | for (line = t->actions; line; line = next) | |
605 | { | |
606 | next = line->next; | |
c5aa993b | 607 | if (line->action) |
b8c9b27d KB |
608 | xfree (line->action); |
609 | xfree (line); | |
c906108c SS |
610 | } |
611 | t->actions = NULL; | |
612 | } | |
613 | ||
74b7792f AC |
614 | static void |
615 | do_free_actions_cleanup (void *t) | |
616 | { | |
617 | free_actions (t); | |
618 | } | |
619 | ||
620 | static struct cleanup * | |
1042e4c0 | 621 | make_cleanup_free_actions (struct breakpoint *t) |
74b7792f AC |
622 | { |
623 | return make_cleanup (do_free_actions_cleanup, t); | |
624 | } | |
625 | ||
f50e79a4 JB |
626 | enum { |
627 | memrange_absolute = -1 | |
628 | }; | |
629 | ||
c5aa993b JM |
630 | struct memrange |
631 | { | |
f50e79a4 JB |
632 | int type; /* memrange_absolute for absolute memory range, |
633 | else basereg number */ | |
c906108c SS |
634 | bfd_signed_vma start; |
635 | bfd_signed_vma end; | |
636 | }; | |
637 | ||
c5aa993b JM |
638 | struct collection_list |
639 | { | |
549678da | 640 | unsigned char regs_mask[32]; /* room for up to 256 regs */ |
c5aa993b JM |
641 | long listsize; |
642 | long next_memrange; | |
643 | struct memrange *list; | |
644 | long aexpr_listsize; /* size of array pointed to by expr_list elt */ | |
645 | long next_aexpr_elt; | |
646 | struct agent_expr **aexpr_list; | |
647 | ||
648 | } | |
649 | tracepoint_list, stepping_list; | |
c906108c SS |
650 | |
651 | /* MEMRANGE functions: */ | |
652 | ||
a14ed312 | 653 | static int memrange_cmp (const void *, const void *); |
c906108c SS |
654 | |
655 | /* compare memranges for qsort */ | |
656 | static int | |
fba45db2 | 657 | memrange_cmp (const void *va, const void *vb) |
c906108c SS |
658 | { |
659 | const struct memrange *a = va, *b = vb; | |
660 | ||
661 | if (a->type < b->type) | |
662 | return -1; | |
663 | if (a->type > b->type) | |
c5aa993b | 664 | return 1; |
f50e79a4 | 665 | if (a->type == memrange_absolute) |
c906108c | 666 | { |
c5aa993b JM |
667 | if ((bfd_vma) a->start < (bfd_vma) b->start) |
668 | return -1; | |
669 | if ((bfd_vma) a->start > (bfd_vma) b->start) | |
670 | return 1; | |
c906108c SS |
671 | } |
672 | else | |
673 | { | |
c5aa993b | 674 | if (a->start < b->start) |
c906108c | 675 | return -1; |
c5aa993b JM |
676 | if (a->start > b->start) |
677 | return 1; | |
c906108c SS |
678 | } |
679 | return 0; | |
680 | } | |
681 | ||
d183932d | 682 | /* Sort the memrange list using qsort, and merge adjacent memranges. */ |
c906108c | 683 | static void |
fba45db2 | 684 | memrange_sortmerge (struct collection_list *memranges) |
c906108c SS |
685 | { |
686 | int a, b; | |
687 | ||
c5aa993b | 688 | qsort (memranges->list, memranges->next_memrange, |
c906108c SS |
689 | sizeof (struct memrange), memrange_cmp); |
690 | if (memranges->next_memrange > 0) | |
691 | { | |
692 | for (a = 0, b = 1; b < memranges->next_memrange; b++) | |
693 | { | |
694 | if (memranges->list[a].type == memranges->list[b].type && | |
c5aa993b | 695 | memranges->list[b].start - memranges->list[a].end <= |
0c92afe8 | 696 | MAX_REGISTER_SIZE) |
c906108c SS |
697 | { |
698 | /* memrange b starts before memrange a ends; merge them. */ | |
699 | if (memranges->list[b].end > memranges->list[a].end) | |
700 | memranges->list[a].end = memranges->list[b].end; | |
701 | continue; /* next b, same a */ | |
702 | } | |
703 | a++; /* next a */ | |
704 | if (a != b) | |
c5aa993b | 705 | memcpy (&memranges->list[a], &memranges->list[b], |
c906108c SS |
706 | sizeof (struct memrange)); |
707 | } | |
708 | memranges->next_memrange = a + 1; | |
709 | } | |
710 | } | |
711 | ||
d183932d | 712 | /* Add a register to a collection list. */ |
392a587b | 713 | static void |
fba45db2 | 714 | add_register (struct collection_list *collection, unsigned int regno) |
c906108c SS |
715 | { |
716 | if (info_verbose) | |
717 | printf_filtered ("collect register %d\n", regno); | |
27e06d3e | 718 | if (regno >= (8 * sizeof (collection->regs_mask))) |
8a3fe4f8 | 719 | error (_("Internal: register number %d too large for tracepoint"), |
c906108c | 720 | regno); |
c5aa993b | 721 | collection->regs_mask[regno / 8] |= 1 << (regno % 8); |
c906108c SS |
722 | } |
723 | ||
724 | /* Add a memrange to a collection list */ | |
725 | static void | |
d183932d MS |
726 | add_memrange (struct collection_list *memranges, |
727 | int type, bfd_signed_vma base, | |
fba45db2 | 728 | unsigned long len) |
c906108c SS |
729 | { |
730 | if (info_verbose) | |
104c1213 JM |
731 | { |
732 | printf_filtered ("(%d,", type); | |
733 | printf_vma (base); | |
734 | printf_filtered (",%ld)\n", len); | |
735 | } | |
736 | ||
f50e79a4 | 737 | /* type: memrange_absolute == memory, other n == basereg */ |
c5aa993b | 738 | memranges->list[memranges->next_memrange].type = type; |
d183932d | 739 | /* base: addr if memory, offset if reg relative. */ |
c906108c SS |
740 | memranges->list[memranges->next_memrange].start = base; |
741 | /* len: we actually save end (base + len) for convenience */ | |
c5aa993b | 742 | memranges->list[memranges->next_memrange].end = base + len; |
c906108c SS |
743 | memranges->next_memrange++; |
744 | if (memranges->next_memrange >= memranges->listsize) | |
745 | { | |
746 | memranges->listsize *= 2; | |
c5aa993b | 747 | memranges->list = xrealloc (memranges->list, |
c906108c SS |
748 | memranges->listsize); |
749 | } | |
750 | ||
f50e79a4 | 751 | if (type != memrange_absolute) /* Better collect the base register! */ |
c906108c SS |
752 | add_register (memranges, type); |
753 | } | |
754 | ||
d183932d | 755 | /* Add a symbol to a collection list. */ |
c906108c | 756 | static void |
d183932d MS |
757 | collect_symbol (struct collection_list *collect, |
758 | struct symbol *sym, | |
fba45db2 | 759 | long frame_regno, long frame_offset) |
c906108c | 760 | { |
c5aa993b | 761 | unsigned long len; |
104c1213 | 762 | unsigned int reg; |
c906108c SS |
763 | bfd_signed_vma offset; |
764 | ||
c5aa993b JM |
765 | len = TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym))); |
766 | switch (SYMBOL_CLASS (sym)) | |
767 | { | |
768 | default: | |
769 | printf_filtered ("%s: don't know symbol class %d\n", | |
3567439c | 770 | SYMBOL_PRINT_NAME (sym), |
d183932d | 771 | SYMBOL_CLASS (sym)); |
c5aa993b JM |
772 | break; |
773 | case LOC_CONST: | |
104c1213 | 774 | printf_filtered ("constant %s (value %ld) will not be collected.\n", |
3567439c | 775 | SYMBOL_PRINT_NAME (sym), SYMBOL_VALUE (sym)); |
c5aa993b JM |
776 | break; |
777 | case LOC_STATIC: | |
778 | offset = SYMBOL_VALUE_ADDRESS (sym); | |
779 | if (info_verbose) | |
104c1213 JM |
780 | { |
781 | char tmp[40]; | |
782 | ||
783 | sprintf_vma (tmp, offset); | |
784 | printf_filtered ("LOC_STATIC %s: collect %ld bytes at %s.\n", | |
3567439c | 785 | SYMBOL_PRINT_NAME (sym), len, |
d183932d | 786 | tmp /* address */); |
104c1213 | 787 | } |
f50e79a4 | 788 | add_memrange (collect, memrange_absolute, offset, len); |
c5aa993b JM |
789 | break; |
790 | case LOC_REGISTER: | |
c5aa993b JM |
791 | reg = SYMBOL_VALUE (sym); |
792 | if (info_verbose) | |
d183932d | 793 | printf_filtered ("LOC_REG[parm] %s: ", |
3567439c | 794 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b | 795 | add_register (collect, reg); |
d183932d MS |
796 | /* Check for doubles stored in two registers. */ |
797 | /* FIXME: how about larger types stored in 3 or more regs? */ | |
c5aa993b | 798 | if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_FLT && |
3acba339 | 799 | len > register_size (current_gdbarch, reg)) |
c5aa993b JM |
800 | add_register (collect, reg + 1); |
801 | break; | |
802 | case LOC_REF_ARG: | |
803 | printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n"); | |
804 | printf_filtered (" (will not collect %s)\n", | |
3567439c | 805 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b JM |
806 | break; |
807 | case LOC_ARG: | |
808 | reg = frame_regno; | |
809 | offset = frame_offset + SYMBOL_VALUE (sym); | |
810 | if (info_verbose) | |
811 | { | |
104c1213 | 812 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", |
3567439c | 813 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
814 | printf_vma (offset); |
815 | printf_filtered (" from frame ptr reg %d\n", reg); | |
c5aa993b JM |
816 | } |
817 | add_memrange (collect, reg, offset, len); | |
818 | break; | |
819 | case LOC_REGPARM_ADDR: | |
820 | reg = SYMBOL_VALUE (sym); | |
821 | offset = 0; | |
822 | if (info_verbose) | |
823 | { | |
104c1213 | 824 | printf_filtered ("LOC_REGPARM_ADDR %s: Collect %ld bytes at offset ", |
3567439c | 825 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
826 | printf_vma (offset); |
827 | printf_filtered (" from reg %d\n", reg); | |
c5aa993b JM |
828 | } |
829 | add_memrange (collect, reg, offset, len); | |
830 | break; | |
831 | case LOC_LOCAL: | |
c5aa993b JM |
832 | reg = frame_regno; |
833 | offset = frame_offset + SYMBOL_VALUE (sym); | |
834 | if (info_verbose) | |
835 | { | |
104c1213 | 836 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", |
3567439c | 837 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
838 | printf_vma (offset); |
839 | printf_filtered (" from frame ptr reg %d\n", reg); | |
c5aa993b JM |
840 | } |
841 | add_memrange (collect, reg, offset, len); | |
842 | break; | |
c5aa993b | 843 | case LOC_UNRESOLVED: |
d183932d | 844 | printf_filtered ("Don't know LOC_UNRESOLVED %s\n", |
3567439c | 845 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b JM |
846 | break; |
847 | case LOC_OPTIMIZED_OUT: | |
8e1a459b | 848 | printf_filtered ("%s has been optimized out of existence.\n", |
3567439c | 849 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b JM |
850 | break; |
851 | } | |
c906108c SS |
852 | } |
853 | ||
854 | /* Add all locals (or args) symbols to collection list */ | |
855 | static void | |
fba45db2 KB |
856 | add_local_symbols (struct collection_list *collect, CORE_ADDR pc, |
857 | long frame_regno, long frame_offset, int type) | |
c906108c SS |
858 | { |
859 | struct symbol *sym; | |
c5aa993b | 860 | struct block *block; |
de4f826b DC |
861 | struct dict_iterator iter; |
862 | int count = 0; | |
c906108c SS |
863 | |
864 | block = block_for_pc (pc); | |
865 | while (block != 0) | |
866 | { | |
c5aa993b | 867 | QUIT; /* allow user to bail out with ^C */ |
de4f826b | 868 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
c906108c | 869 | { |
2a2d4dc3 AS |
870 | if (SYMBOL_IS_ARGUMENT (sym) |
871 | ? type == 'A' /* collecting Arguments */ | |
872 | : type == 'L') /* collecting Locals */ | |
c5aa993b | 873 | { |
2a2d4dc3 AS |
874 | count++; |
875 | collect_symbol (collect, sym, frame_regno, | |
876 | frame_offset); | |
c5aa993b | 877 | } |
c906108c SS |
878 | } |
879 | if (BLOCK_FUNCTION (block)) | |
880 | break; | |
881 | else | |
882 | block = BLOCK_SUPERBLOCK (block); | |
883 | } | |
884 | if (count == 0) | |
8a3fe4f8 | 885 | warning (_("No %s found in scope."), |
d183932d | 886 | type == 'L' ? "locals" : "args"); |
c906108c SS |
887 | } |
888 | ||
889 | /* worker function */ | |
890 | static void | |
fba45db2 | 891 | clear_collection_list (struct collection_list *list) |
c906108c SS |
892 | { |
893 | int ndx; | |
894 | ||
895 | list->next_memrange = 0; | |
896 | for (ndx = 0; ndx < list->next_aexpr_elt; ndx++) | |
897 | { | |
c5aa993b | 898 | free_agent_expr (list->aexpr_list[ndx]); |
c906108c SS |
899 | list->aexpr_list[ndx] = NULL; |
900 | } | |
901 | list->next_aexpr_elt = 0; | |
902 | memset (list->regs_mask, 0, sizeof (list->regs_mask)); | |
903 | } | |
904 | ||
905 | /* reduce a collection list to string form (for gdb protocol) */ | |
906 | static char ** | |
fba45db2 | 907 | stringify_collection_list (struct collection_list *list, char *string) |
c906108c SS |
908 | { |
909 | char temp_buf[2048]; | |
104c1213 | 910 | char tmp2[40]; |
c906108c SS |
911 | int count; |
912 | int ndx = 0; | |
913 | char *(*str_list)[]; | |
914 | char *end; | |
c5aa993b | 915 | long i; |
c906108c SS |
916 | |
917 | count = 1 + list->next_memrange + list->next_aexpr_elt + 1; | |
c5aa993b | 918 | str_list = (char *(*)[]) xmalloc (count * sizeof (char *)); |
c906108c SS |
919 | |
920 | for (i = sizeof (list->regs_mask) - 1; i > 0; i--) | |
921 | if (list->regs_mask[i] != 0) /* skip leading zeroes in regs_mask */ | |
922 | break; | |
923 | if (list->regs_mask[i] != 0) /* prepare to send regs_mask to the stub */ | |
924 | { | |
925 | if (info_verbose) | |
926 | printf_filtered ("\nCollecting registers (mask): 0x"); | |
927 | end = temp_buf; | |
c5aa993b | 928 | *end++ = 'R'; |
c906108c SS |
929 | for (; i >= 0; i--) |
930 | { | |
c5aa993b | 931 | QUIT; /* allow user to bail out with ^C */ |
c906108c SS |
932 | if (info_verbose) |
933 | printf_filtered ("%02X", list->regs_mask[i]); | |
c5aa993b | 934 | sprintf (end, "%02X", list->regs_mask[i]); |
c906108c SS |
935 | end += 2; |
936 | } | |
c5aa993b | 937 | (*str_list)[ndx] = savestring (temp_buf, end - temp_buf); |
c906108c SS |
938 | ndx++; |
939 | } | |
940 | if (info_verbose) | |
941 | printf_filtered ("\n"); | |
942 | if (list->next_memrange > 0 && info_verbose) | |
943 | printf_filtered ("Collecting memranges: \n"); | |
944 | for (i = 0, count = 0, end = temp_buf; i < list->next_memrange; i++) | |
945 | { | |
946 | QUIT; /* allow user to bail out with ^C */ | |
104c1213 | 947 | sprintf_vma (tmp2, list->list[i].start); |
c906108c | 948 | if (info_verbose) |
104c1213 JM |
949 | { |
950 | printf_filtered ("(%d, %s, %ld)\n", | |
951 | list->list[i].type, | |
952 | tmp2, | |
953 | (long) (list->list[i].end - list->list[i].start)); | |
954 | } | |
c906108c SS |
955 | if (count + 27 > MAX_AGENT_EXPR_LEN) |
956 | { | |
c5aa993b | 957 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
958 | ndx++; |
959 | count = 0; | |
960 | end = temp_buf; | |
961 | } | |
104c1213 | 962 | |
d1948716 JB |
963 | { |
964 | bfd_signed_vma length = list->list[i].end - list->list[i].start; | |
965 | ||
966 | /* The "%X" conversion specifier expects an unsigned argument, | |
f50e79a4 JB |
967 | so passing -1 (memrange_absolute) to it directly gives you |
968 | "FFFFFFFF" (or more, depending on sizeof (unsigned)). | |
969 | Special-case it. */ | |
970 | if (list->list[i].type == memrange_absolute) | |
d1948716 JB |
971 | sprintf (end, "M-1,%s,%lX", tmp2, (long) length); |
972 | else | |
973 | sprintf (end, "M%X,%s,%lX", list->list[i].type, tmp2, (long) length); | |
974 | } | |
104c1213 | 975 | |
c906108c | 976 | count += strlen (end); |
3ffbc0a5 | 977 | end = temp_buf + count; |
c906108c SS |
978 | } |
979 | ||
980 | for (i = 0; i < list->next_aexpr_elt; i++) | |
981 | { | |
982 | QUIT; /* allow user to bail out with ^C */ | |
983 | if ((count + 10 + 2 * list->aexpr_list[i]->len) > MAX_AGENT_EXPR_LEN) | |
984 | { | |
c5aa993b | 985 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
986 | ndx++; |
987 | count = 0; | |
988 | end = temp_buf; | |
989 | } | |
990 | sprintf (end, "X%08X,", list->aexpr_list[i]->len); | |
991 | end += 10; /* 'X' + 8 hex digits + ',' */ | |
992 | count += 10; | |
993 | ||
d183932d MS |
994 | end = mem2hex (list->aexpr_list[i]->buf, |
995 | end, list->aexpr_list[i]->len); | |
c906108c SS |
996 | count += 2 * list->aexpr_list[i]->len; |
997 | } | |
998 | ||
999 | if (count != 0) | |
1000 | { | |
c5aa993b | 1001 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1002 | ndx++; |
1003 | count = 0; | |
1004 | end = temp_buf; | |
1005 | } | |
1006 | (*str_list)[ndx] = NULL; | |
1007 | ||
1008 | if (ndx == 0) | |
27e06d3e | 1009 | { |
6c761d9c | 1010 | xfree (str_list); |
27e06d3e MS |
1011 | return NULL; |
1012 | } | |
c906108c SS |
1013 | else |
1014 | return *str_list; | |
1015 | } | |
1016 | ||
392a587b | 1017 | static void |
fba45db2 | 1018 | free_actions_list_cleanup_wrapper (void *al) |
392a587b JM |
1019 | { |
1020 | free_actions_list (al); | |
1021 | } | |
1022 | ||
1023 | static void | |
fba45db2 | 1024 | free_actions_list (char **actions_list) |
c906108c SS |
1025 | { |
1026 | int ndx; | |
1027 | ||
1028 | if (actions_list == 0) | |
1029 | return; | |
1030 | ||
1031 | for (ndx = 0; actions_list[ndx]; ndx++) | |
b8c9b27d | 1032 | xfree (actions_list[ndx]); |
c906108c | 1033 | |
b8c9b27d | 1034 | xfree (actions_list); |
c906108c SS |
1035 | } |
1036 | ||
d183932d | 1037 | /* Render all actions into gdb protocol. */ |
c906108c | 1038 | static void |
1042e4c0 | 1039 | encode_actions (struct breakpoint *t, char ***tdp_actions, |
fba45db2 | 1040 | char ***stepping_actions) |
c906108c | 1041 | { |
c5aa993b JM |
1042 | static char tdp_buff[2048], step_buff[2048]; |
1043 | char *action_exp; | |
1044 | struct expression *exp = NULL; | |
c906108c | 1045 | struct action_line *action; |
104c1213 | 1046 | int i; |
f976f6d4 | 1047 | struct value *tempval; |
c5aa993b | 1048 | struct collection_list *collect; |
c906108c SS |
1049 | struct cmd_list_element *cmd; |
1050 | struct agent_expr *aexpr; | |
39d4ef09 AC |
1051 | int frame_reg; |
1052 | LONGEST frame_offset; | |
c906108c SS |
1053 | |
1054 | ||
1055 | clear_collection_list (&tracepoint_list); | |
1056 | clear_collection_list (&stepping_list); | |
1057 | collect = &tracepoint_list; | |
1058 | ||
1059 | *tdp_actions = NULL; | |
1060 | *stepping_actions = NULL; | |
1061 | ||
c7bb205c | 1062 | gdbarch_virtual_frame_pointer (current_gdbarch, |
1042e4c0 | 1063 | t->loc->address, &frame_reg, &frame_offset); |
c906108c SS |
1064 | |
1065 | for (action = t->actions; action; action = action->next) | |
1066 | { | |
1067 | QUIT; /* allow user to bail out with ^C */ | |
1068 | action_exp = action->action; | |
104c1213 | 1069 | while (isspace ((int) *action_exp)) |
c906108c SS |
1070 | action_exp++; |
1071 | ||
1072 | if (*action_exp == '#') /* comment line */ | |
1073 | return; | |
1074 | ||
1075 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); | |
1076 | if (cmd == 0) | |
8a3fe4f8 | 1077 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 1078 | |
bbaca940 | 1079 | if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c | 1080 | { |
c5aa993b JM |
1081 | do |
1082 | { /* repeat over a comma-separated list */ | |
1083 | QUIT; /* allow user to bail out with ^C */ | |
104c1213 | 1084 | while (isspace ((int) *action_exp)) |
c5aa993b | 1085 | action_exp++; |
c906108c | 1086 | |
c5aa993b JM |
1087 | if (0 == strncasecmp ("$reg", action_exp, 4)) |
1088 | { | |
f57d151a | 1089 | for (i = 0; i < gdbarch_num_regs (current_gdbarch); i++) |
c5aa993b JM |
1090 | add_register (collect, i); |
1091 | action_exp = strchr (action_exp, ','); /* more? */ | |
1092 | } | |
1093 | else if (0 == strncasecmp ("$arg", action_exp, 4)) | |
1094 | { | |
1095 | add_local_symbols (collect, | |
1042e4c0 | 1096 | t->loc->address, |
c5aa993b JM |
1097 | frame_reg, |
1098 | frame_offset, | |
1099 | 'A'); | |
1100 | action_exp = strchr (action_exp, ','); /* more? */ | |
1101 | } | |
1102 | else if (0 == strncasecmp ("$loc", action_exp, 4)) | |
1103 | { | |
1104 | add_local_symbols (collect, | |
1042e4c0 | 1105 | t->loc->address, |
c5aa993b JM |
1106 | frame_reg, |
1107 | frame_offset, | |
1108 | 'L'); | |
1109 | action_exp = strchr (action_exp, ','); /* more? */ | |
1110 | } | |
1111 | else | |
1112 | { | |
1113 | unsigned long addr, len; | |
1114 | struct cleanup *old_chain = NULL; | |
1115 | struct cleanup *old_chain1 = NULL; | |
1116 | struct agent_reqs areqs; | |
1117 | ||
75ac9d7b | 1118 | exp = parse_exp_1 (&action_exp, |
1042e4c0 | 1119 | block_for_pc (t->loc->address), 1); |
74b7792f | 1120 | old_chain = make_cleanup (free_current_contents, &exp); |
c906108c | 1121 | |
c5aa993b JM |
1122 | switch (exp->elts[0].opcode) |
1123 | { | |
1124 | case OP_REGISTER: | |
67f3407f DJ |
1125 | { |
1126 | const char *name = &exp->elts[2].string; | |
1127 | ||
029a67e4 UW |
1128 | i = user_reg_map_name_to_regnum (current_gdbarch, |
1129 | name, strlen (name)); | |
67f3407f DJ |
1130 | if (i == -1) |
1131 | internal_error (__FILE__, __LINE__, | |
1132 | _("Register $%s not available"), | |
1133 | name); | |
1134 | if (info_verbose) | |
1135 | printf_filtered ("OP_REGISTER: "); | |
1136 | add_register (collect, i); | |
1137 | break; | |
1138 | } | |
c5aa993b JM |
1139 | |
1140 | case UNOP_MEMVAL: | |
1141 | /* safe because we know it's a simple expression */ | |
1142 | tempval = evaluate_expression (exp); | |
df407dfe | 1143 | addr = VALUE_ADDRESS (tempval) + value_offset (tempval); |
c5aa993b | 1144 | len = TYPE_LENGTH (check_typedef (exp->elts[1].type)); |
f50e79a4 | 1145 | add_memrange (collect, memrange_absolute, addr, len); |
c5aa993b JM |
1146 | break; |
1147 | ||
1148 | case OP_VAR_VALUE: | |
1149 | collect_symbol (collect, | |
1150 | exp->elts[2].symbol, | |
1151 | frame_reg, | |
1152 | frame_offset); | |
1153 | break; | |
1154 | ||
1155 | default: /* full-fledged expression */ | |
1042e4c0 | 1156 | aexpr = gen_trace_for_expr (t->loc->address, exp); |
c5aa993b | 1157 | |
f23d52e0 | 1158 | old_chain1 = make_cleanup_free_agent_expr (aexpr); |
c5aa993b JM |
1159 | |
1160 | ax_reqs (aexpr, &areqs); | |
1161 | if (areqs.flaw != agent_flaw_none) | |
8a3fe4f8 | 1162 | error (_("malformed expression")); |
c5aa993b JM |
1163 | |
1164 | if (areqs.min_height < 0) | |
8a3fe4f8 | 1165 | error (_("gdb: Internal error: expression has min height < 0")); |
c5aa993b | 1166 | if (areqs.max_height > 20) |
8a3fe4f8 | 1167 | error (_("expression too complicated, try simplifying")); |
c5aa993b JM |
1168 | |
1169 | discard_cleanups (old_chain1); | |
1170 | add_aexpr (collect, aexpr); | |
1171 | ||
1172 | /* take care of the registers */ | |
1173 | if (areqs.reg_mask_len > 0) | |
c906108c | 1174 | { |
c5aa993b JM |
1175 | int ndx1; |
1176 | int ndx2; | |
1177 | ||
1178 | for (ndx1 = 0; ndx1 < areqs.reg_mask_len; ndx1++) | |
c906108c | 1179 | { |
c5aa993b JM |
1180 | QUIT; /* allow user to bail out with ^C */ |
1181 | if (areqs.reg_mask[ndx1] != 0) | |
1182 | { | |
1183 | /* assume chars have 8 bits */ | |
1184 | for (ndx2 = 0; ndx2 < 8; ndx2++) | |
1185 | if (areqs.reg_mask[ndx1] & (1 << ndx2)) | |
1186 | /* it's used -- record it */ | |
d183932d MS |
1187 | add_register (collect, |
1188 | ndx1 * 8 + ndx2); | |
c5aa993b | 1189 | } |
c906108c SS |
1190 | } |
1191 | } | |
c5aa993b JM |
1192 | break; |
1193 | } /* switch */ | |
1194 | do_cleanups (old_chain); | |
1195 | } /* do */ | |
1196 | } | |
1197 | while (action_exp && *action_exp++ == ','); | |
1198 | } /* if */ | |
bbaca940 | 1199 | else if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
c906108c SS |
1200 | { |
1201 | collect = &stepping_list; | |
1202 | } | |
bbaca940 | 1203 | else if (cmd_cfunc_eq (cmd, end_actions_pseudocommand)) |
c906108c SS |
1204 | { |
1205 | if (collect == &stepping_list) /* end stepping actions */ | |
1206 | collect = &tracepoint_list; | |
1207 | else | |
c5aa993b | 1208 | break; /* end tracepoint actions */ |
c906108c | 1209 | } |
c5aa993b JM |
1210 | } /* for */ |
1211 | memrange_sortmerge (&tracepoint_list); | |
1212 | memrange_sortmerge (&stepping_list); | |
c906108c | 1213 | |
d183932d MS |
1214 | *tdp_actions = stringify_collection_list (&tracepoint_list, |
1215 | tdp_buff); | |
1216 | *stepping_actions = stringify_collection_list (&stepping_list, | |
1217 | step_buff); | |
c906108c SS |
1218 | } |
1219 | ||
1220 | static void | |
fba45db2 | 1221 | add_aexpr (struct collection_list *collect, struct agent_expr *aexpr) |
c906108c SS |
1222 | { |
1223 | if (collect->next_aexpr_elt >= collect->aexpr_listsize) | |
1224 | { | |
1225 | collect->aexpr_list = | |
1226 | xrealloc (collect->aexpr_list, | |
c5aa993b | 1227 | 2 * collect->aexpr_listsize * sizeof (struct agent_expr *)); |
c906108c SS |
1228 | collect->aexpr_listsize *= 2; |
1229 | } | |
1230 | collect->aexpr_list[collect->next_aexpr_elt] = aexpr; | |
1231 | collect->next_aexpr_elt++; | |
1232 | } | |
1233 | ||
6d820c5c DJ |
1234 | static char *target_buf; |
1235 | static long target_buf_size; | |
c906108c SS |
1236 | |
1237 | /* Set "transparent" memory ranges | |
1238 | ||
1239 | Allow trace mechanism to treat text-like sections | |
1240 | (and perhaps all read-only sections) transparently, | |
1241 | i.e. don't reject memory requests from these address ranges | |
1242 | just because they haven't been collected. */ | |
1243 | ||
1244 | static void | |
1245 | remote_set_transparent_ranges (void) | |
1246 | { | |
1247 | extern bfd *exec_bfd; | |
1248 | asection *s; | |
1249 | bfd_size_type size; | |
1250 | bfd_vma lma; | |
1251 | int anysecs = 0; | |
1252 | ||
1253 | if (!exec_bfd) | |
d183932d | 1254 | return; /* No information to give. */ |
c906108c SS |
1255 | |
1256 | strcpy (target_buf, "QTro"); | |
1257 | for (s = exec_bfd->sections; s; s = s->next) | |
1258 | { | |
104c1213 | 1259 | char tmp1[40], tmp2[40]; |
c906108c | 1260 | |
c5aa993b JM |
1261 | if ((s->flags & SEC_LOAD) == 0 || |
1262 | /* (s->flags & SEC_CODE) == 0 || */ | |
c906108c SS |
1263 | (s->flags & SEC_READONLY) == 0) |
1264 | continue; | |
1265 | ||
1266 | anysecs = 1; | |
c5aa993b | 1267 | lma = s->lma; |
2c500098 | 1268 | size = bfd_get_section_size (s); |
104c1213 JM |
1269 | sprintf_vma (tmp1, lma); |
1270 | sprintf_vma (tmp2, lma + size); | |
1271 | sprintf (target_buf + strlen (target_buf), | |
1272 | ":%s,%s", tmp1, tmp2); | |
c906108c SS |
1273 | } |
1274 | if (anysecs) | |
1275 | { | |
1276 | putpkt (target_buf); | |
6d820c5c | 1277 | getpkt (&target_buf, &target_buf_size, 0); |
c906108c SS |
1278 | } |
1279 | } | |
1280 | ||
1281 | /* tstart command: | |
c5aa993b | 1282 | |
c906108c SS |
1283 | Tell target to clear any previous trace experiment. |
1284 | Walk the list of tracepoints, and send them (and their actions) | |
1285 | to the target. If no errors, | |
1286 | Tell target to start a new trace experiment. */ | |
1287 | ||
1042e4c0 SS |
1288 | void download_tracepoint (struct breakpoint *t); |
1289 | ||
c906108c | 1290 | static void |
fba45db2 | 1291 | trace_start_command (char *args, int from_tty) |
d183932d | 1292 | { |
1042e4c0 SS |
1293 | VEC(breakpoint_p) *tp_vec = NULL; |
1294 | int ix; | |
1295 | struct breakpoint *t; | |
c906108c | 1296 | |
d183932d | 1297 | dont_repeat (); /* Like "run", dangerous to repeat accidentally. */ |
c5aa993b | 1298 | |
c906108c SS |
1299 | if (target_is_remote ()) |
1300 | { | |
1301 | putpkt ("QTinit"); | |
6d820c5c | 1302 | remote_get_noisy_reply (&target_buf, &target_buf_size); |
c906108c | 1303 | if (strcmp (target_buf, "OK")) |
8a3fe4f8 | 1304 | error (_("Target does not support this command.")); |
c906108c | 1305 | |
1042e4c0 SS |
1306 | tp_vec = all_tracepoints (); |
1307 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++) | |
1308 | { | |
1309 | download_tracepoint (t); | |
1310 | } | |
1311 | VEC_free (breakpoint_p, tp_vec); | |
c5aa993b | 1312 | |
d183932d | 1313 | /* Tell target to treat text-like sections as transparent. */ |
c906108c | 1314 | remote_set_transparent_ranges (); |
d183932d | 1315 | /* Now insert traps and begin collecting data. */ |
c906108c | 1316 | putpkt ("QTStart"); |
6d820c5c | 1317 | remote_get_noisy_reply (&target_buf, &target_buf_size); |
c906108c | 1318 | if (strcmp (target_buf, "OK")) |
8a3fe4f8 | 1319 | error (_("Bogus reply from target: %s"), target_buf); |
d183932d | 1320 | set_traceframe_num (-1); /* All old traceframes invalidated. */ |
c906108c | 1321 | set_tracepoint_num (-1); |
c5aa993b | 1322 | set_traceframe_context (-1); |
c906108c | 1323 | trace_running_p = 1; |
9a4105ab AC |
1324 | if (deprecated_trace_start_stop_hook) |
1325 | deprecated_trace_start_stop_hook (1, from_tty); | |
c5aa993b | 1326 | |
c906108c SS |
1327 | } |
1328 | else | |
8a3fe4f8 | 1329 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1330 | } |
1331 | ||
1042e4c0 SS |
1332 | /* Send the definition of a single tracepoint to the target. */ |
1333 | ||
1334 | void | |
1335 | download_tracepoint (struct breakpoint *t) | |
1336 | { | |
1337 | char tmp[40]; | |
1338 | char buf[2048]; | |
1339 | char **tdp_actions; | |
1340 | char **stepping_actions; | |
1341 | int ndx; | |
1342 | struct cleanup *old_chain = NULL; | |
1343 | ||
1344 | sprintf_vma (tmp, (t->loc ? t->loc->address : 0)); | |
1345 | sprintf (buf, "QTDP:%x:%s:%c:%lx:%x", t->number, | |
1346 | tmp, /* address */ | |
1347 | (t->enable_state == bp_enabled ? 'E' : 'D'), | |
1348 | t->step_count, t->pass_count); | |
1349 | ||
1350 | if (t->actions) | |
1351 | strcat (buf, "-"); | |
1352 | putpkt (buf); | |
1353 | remote_get_noisy_reply (&target_buf, &target_buf_size); | |
1354 | if (strcmp (target_buf, "OK")) | |
1355 | error (_("Target does not support tracepoints.")); | |
1356 | ||
1357 | if (!t->actions) | |
1358 | return; | |
1359 | ||
1360 | encode_actions (t, &tdp_actions, &stepping_actions); | |
1361 | old_chain = make_cleanup (free_actions_list_cleanup_wrapper, | |
1362 | tdp_actions); | |
1363 | (void) make_cleanup (free_actions_list_cleanup_wrapper, stepping_actions); | |
1364 | ||
1365 | /* do_single_steps (t); */ | |
1366 | if (tdp_actions) | |
1367 | { | |
1368 | for (ndx = 0; tdp_actions[ndx]; ndx++) | |
1369 | { | |
1370 | QUIT; /* allow user to bail out with ^C */ | |
1371 | sprintf (buf, "QTDP:-%x:%s:%s%c", | |
1372 | t->number, tmp, /* address */ | |
1373 | tdp_actions[ndx], | |
1374 | ((tdp_actions[ndx + 1] || stepping_actions) | |
1375 | ? '-' : 0)); | |
1376 | putpkt (buf); | |
1377 | remote_get_noisy_reply (&target_buf, | |
1378 | &target_buf_size); | |
1379 | if (strcmp (target_buf, "OK")) | |
1380 | error (_("Error on target while setting tracepoints.")); | |
1381 | } | |
1382 | } | |
1383 | if (stepping_actions) | |
1384 | { | |
1385 | for (ndx = 0; stepping_actions[ndx]; ndx++) | |
1386 | { | |
1387 | QUIT; /* allow user to bail out with ^C */ | |
1388 | sprintf (buf, "QTDP:-%x:%s:%s%s%s", | |
1389 | t->number, tmp, /* address */ | |
1390 | ((ndx == 0) ? "S" : ""), | |
1391 | stepping_actions[ndx], | |
1392 | (stepping_actions[ndx + 1] ? "-" : "")); | |
1393 | putpkt (buf); | |
1394 | remote_get_noisy_reply (&target_buf, | |
1395 | &target_buf_size); | |
1396 | if (strcmp (target_buf, "OK")) | |
1397 | error (_("Error on target while setting tracepoints.")); | |
1398 | } | |
1399 | } | |
1400 | do_cleanups (old_chain); | |
1401 | } | |
1402 | ||
c906108c SS |
1403 | /* tstop command */ |
1404 | static void | |
fba45db2 | 1405 | trace_stop_command (char *args, int from_tty) |
d183932d | 1406 | { |
c906108c SS |
1407 | if (target_is_remote ()) |
1408 | { | |
1409 | putpkt ("QTStop"); | |
6d820c5c | 1410 | remote_get_noisy_reply (&target_buf, &target_buf_size); |
c906108c | 1411 | if (strcmp (target_buf, "OK")) |
8a3fe4f8 | 1412 | error (_("Bogus reply from target: %s"), target_buf); |
c906108c | 1413 | trace_running_p = 0; |
9a4105ab AC |
1414 | if (deprecated_trace_start_stop_hook) |
1415 | deprecated_trace_start_stop_hook (0, from_tty); | |
c906108c SS |
1416 | } |
1417 | else | |
8a3fe4f8 | 1418 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1419 | } |
1420 | ||
1421 | unsigned long trace_running_p; | |
1422 | ||
1423 | /* tstatus command */ | |
1424 | static void | |
fba45db2 | 1425 | trace_status_command (char *args, int from_tty) |
d183932d | 1426 | { |
c906108c SS |
1427 | if (target_is_remote ()) |
1428 | { | |
1429 | putpkt ("qTStatus"); | |
6d820c5c | 1430 | remote_get_noisy_reply (&target_buf, &target_buf_size); |
c906108c SS |
1431 | |
1432 | if (target_buf[0] != 'T' || | |
1433 | (target_buf[1] != '0' && target_buf[1] != '1')) | |
8a3fe4f8 | 1434 | error (_("Bogus reply from target: %s"), target_buf); |
c906108c SS |
1435 | |
1436 | /* exported for use by the GUI */ | |
1437 | trace_running_p = (target_buf[1] == '1'); | |
1438 | } | |
1439 | else | |
8a3fe4f8 | 1440 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1441 | } |
1442 | ||
d183932d | 1443 | /* Worker function for the various flavors of the tfind command. */ |
c906108c | 1444 | static void |
6d820c5c DJ |
1445 | finish_tfind_command (char **msg, |
1446 | long *sizeof_msg, | |
c2d11a7d | 1447 | int from_tty) |
c906108c SS |
1448 | { |
1449 | int target_frameno = -1, target_tracept = -1; | |
1450 | CORE_ADDR old_frame_addr; | |
1451 | struct symbol *old_func; | |
1452 | char *reply; | |
1453 | ||
c193f6ac | 1454 | old_frame_addr = get_frame_base (get_current_frame ()); |
c5aa993b | 1455 | old_func = find_pc_function (read_pc ()); |
c906108c | 1456 | |
6d820c5c | 1457 | putpkt (*msg); |
c2d11a7d | 1458 | reply = remote_get_noisy_reply (msg, sizeof_msg); |
c906108c SS |
1459 | |
1460 | while (reply && *reply) | |
c5aa993b JM |
1461 | switch (*reply) |
1462 | { | |
1463 | case 'F': | |
1464 | if ((target_frameno = (int) strtol (++reply, &reply, 16)) == -1) | |
1465 | { | |
1466 | /* A request for a non-existant trace frame has failed. | |
1467 | Our response will be different, depending on FROM_TTY: | |
1468 | ||
1469 | If FROM_TTY is true, meaning that this command was | |
1470 | typed interactively by the user, then give an error | |
1471 | and DO NOT change the state of traceframe_number etc. | |
1472 | ||
1473 | However if FROM_TTY is false, meaning that we're either | |
1474 | in a script, a loop, or a user-defined command, then | |
1475 | DON'T give an error, but DO change the state of | |
1476 | traceframe_number etc. to invalid. | |
1477 | ||
1478 | The rationalle is that if you typed the command, you | |
1479 | might just have committed a typo or something, and you'd | |
1480 | like to NOT lose your current debugging state. However | |
1481 | if you're in a user-defined command or especially in a | |
1482 | loop, then you need a way to detect that the command | |
1483 | failed WITHOUT aborting. This allows you to write | |
1484 | scripts that search thru the trace buffer until the end, | |
1485 | and then continue on to do something else. */ | |
1486 | ||
1487 | if (from_tty) | |
8a3fe4f8 | 1488 | error (_("Target failed to find requested trace frame.")); |
c5aa993b JM |
1489 | else |
1490 | { | |
1491 | if (info_verbose) | |
1492 | printf_filtered ("End of trace buffer.\n"); | |
d183932d MS |
1493 | /* The following will not recurse, since it's |
1494 | special-cased. */ | |
c5aa993b | 1495 | trace_find_command ("-1", from_tty); |
d183932d MS |
1496 | reply = NULL; /* Break out of loop |
1497 | (avoid recursive nonsense). */ | |
c5aa993b JM |
1498 | } |
1499 | } | |
1500 | break; | |
1501 | case 'T': | |
1502 | if ((target_tracept = (int) strtol (++reply, &reply, 16)) == -1) | |
8a3fe4f8 | 1503 | error (_("Target failed to find requested trace frame.")); |
c5aa993b JM |
1504 | break; |
1505 | case 'O': /* "OK"? */ | |
1506 | if (reply[1] == 'K' && reply[2] == '\0') | |
1507 | reply += 2; | |
1508 | else | |
8a3fe4f8 | 1509 | error (_("Bogus reply from target: %s"), reply); |
c5aa993b JM |
1510 | break; |
1511 | default: | |
8a3fe4f8 | 1512 | error (_("Bogus reply from target: %s"), reply); |
c5aa993b | 1513 | } |
c906108c | 1514 | |
35f196d9 | 1515 | reinit_frame_cache (); |
c906108c | 1516 | registers_changed (); |
c906108c SS |
1517 | set_traceframe_num (target_frameno); |
1518 | set_tracepoint_num (target_tracept); | |
1519 | if (target_frameno == -1) | |
1520 | set_traceframe_context (-1); | |
1521 | else | |
1522 | set_traceframe_context (read_pc ()); | |
1523 | ||
1524 | if (from_tty) | |
1525 | { | |
0faf0076 | 1526 | enum print_what print_what; |
c906108c SS |
1527 | |
1528 | /* NOTE: in immitation of the step command, try to determine | |
d183932d MS |
1529 | whether we have made a transition from one function to |
1530 | another. If so, we'll print the "stack frame" (ie. the new | |
1531 | function and it's arguments) -- otherwise we'll just show the | |
1532 | new source line. | |
c5aa993b | 1533 | |
d183932d MS |
1534 | This determination is made by checking (1) whether the |
1535 | current function has changed, and (2) whether the current FP | |
1536 | has changed. Hack: if the FP wasn't collected, either at the | |
1537 | current or the previous frame, assume that the FP has NOT | |
1538 | changed. */ | |
c5aa993b JM |
1539 | |
1540 | if (old_func == find_pc_function (read_pc ()) && | |
1541 | (old_frame_addr == 0 || | |
c193f6ac AC |
1542 | get_frame_base (get_current_frame ()) == 0 || |
1543 | old_frame_addr == get_frame_base (get_current_frame ()))) | |
0faf0076 | 1544 | print_what = SRC_LINE; |
c906108c | 1545 | else |
0faf0076 | 1546 | print_what = SRC_AND_LOC; |
c906108c | 1547 | |
b04f3ab4 | 1548 | print_stack_frame (get_selected_frame (NULL), 1, print_what); |
c906108c SS |
1549 | do_displays (); |
1550 | } | |
1551 | } | |
1552 | ||
1553 | /* trace_find_command takes a trace frame number n, | |
1554 | sends "QTFrame:<n>" to the target, | |
1555 | and accepts a reply that may contain several optional pieces | |
1556 | of information: a frame number, a tracepoint number, and an | |
1557 | indication of whether this is a trap frame or a stepping frame. | |
1558 | ||
1559 | The minimal response is just "OK" (which indicates that the | |
1560 | target does not give us a frame number or a tracepoint number). | |
1561 | Instead of that, the target may send us a string containing | |
1562 | any combination of: | |
c5aa993b JM |
1563 | F<hexnum> (gives the selected frame number) |
1564 | T<hexnum> (gives the selected tracepoint number) | |
1565 | */ | |
c906108c SS |
1566 | |
1567 | /* tfind command */ | |
1568 | static void | |
fba45db2 | 1569 | trace_find_command (char *args, int from_tty) |
d183932d | 1570 | { /* this should only be called with a numeric argument */ |
c906108c | 1571 | int frameno = -1; |
c906108c SS |
1572 | |
1573 | if (target_is_remote ()) | |
1574 | { | |
9a4105ab AC |
1575 | if (deprecated_trace_find_hook) |
1576 | deprecated_trace_find_hook (args, from_tty); | |
c5aa993b | 1577 | |
c906108c | 1578 | if (args == 0 || *args == 0) |
d183932d | 1579 | { /* TFIND with no args means find NEXT trace frame. */ |
c906108c SS |
1580 | if (traceframe_number == -1) |
1581 | frameno = 0; /* "next" is first one */ | |
1582 | else | |
1583 | frameno = traceframe_number + 1; | |
1584 | } | |
1585 | else if (0 == strcmp (args, "-")) | |
1586 | { | |
1587 | if (traceframe_number == -1) | |
8a3fe4f8 | 1588 | error (_("not debugging trace buffer")); |
c906108c | 1589 | else if (from_tty && traceframe_number == 0) |
8a3fe4f8 | 1590 | error (_("already at start of trace buffer")); |
c906108c SS |
1591 | |
1592 | frameno = traceframe_number - 1; | |
1593 | } | |
1594 | else | |
bb518678 | 1595 | frameno = parse_and_eval_long (args); |
c906108c SS |
1596 | |
1597 | if (frameno < -1) | |
8a3fe4f8 | 1598 | error (_("invalid input (%d is less than zero)"), frameno); |
c906108c SS |
1599 | |
1600 | sprintf (target_buf, "QTFrame:%x", frameno); | |
6d820c5c | 1601 | finish_tfind_command (&target_buf, &target_buf_size, from_tty); |
c906108c SS |
1602 | } |
1603 | else | |
8a3fe4f8 | 1604 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1605 | } |
1606 | ||
1607 | /* tfind end */ | |
1608 | static void | |
fba45db2 | 1609 | trace_find_end_command (char *args, int from_tty) |
c906108c SS |
1610 | { |
1611 | trace_find_command ("-1", from_tty); | |
1612 | } | |
1613 | ||
1614 | /* tfind none */ | |
1615 | static void | |
fba45db2 | 1616 | trace_find_none_command (char *args, int from_tty) |
c906108c SS |
1617 | { |
1618 | trace_find_command ("-1", from_tty); | |
1619 | } | |
1620 | ||
1621 | /* tfind start */ | |
1622 | static void | |
fba45db2 | 1623 | trace_find_start_command (char *args, int from_tty) |
c906108c SS |
1624 | { |
1625 | trace_find_command ("0", from_tty); | |
1626 | } | |
1627 | ||
1628 | /* tfind pc command */ | |
1629 | static void | |
fba45db2 | 1630 | trace_find_pc_command (char *args, int from_tty) |
d183932d | 1631 | { |
c906108c | 1632 | CORE_ADDR pc; |
104c1213 | 1633 | char tmp[40]; |
c906108c SS |
1634 | |
1635 | if (target_is_remote ()) | |
1636 | { | |
1637 | if (args == 0 || *args == 0) | |
1638 | pc = read_pc (); /* default is current pc */ | |
1639 | else | |
1640 | pc = parse_and_eval_address (args); | |
1641 | ||
104c1213 JM |
1642 | sprintf_vma (tmp, pc); |
1643 | sprintf (target_buf, "QTFrame:pc:%s", tmp); | |
6d820c5c | 1644 | finish_tfind_command (&target_buf, &target_buf_size, from_tty); |
c906108c SS |
1645 | } |
1646 | else | |
8a3fe4f8 | 1647 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1648 | } |
1649 | ||
1650 | /* tfind tracepoint command */ | |
1651 | static void | |
fba45db2 | 1652 | trace_find_tracepoint_command (char *args, int from_tty) |
d183932d | 1653 | { |
c906108c | 1654 | int tdp; |
c906108c SS |
1655 | |
1656 | if (target_is_remote ()) | |
1657 | { | |
1658 | if (args == 0 || *args == 0) | |
3db26b01 JB |
1659 | { |
1660 | if (tracepoint_number == -1) | |
8a3fe4f8 | 1661 | error (_("No current tracepoint -- please supply an argument.")); |
3db26b01 JB |
1662 | else |
1663 | tdp = tracepoint_number; /* default is current TDP */ | |
1664 | } | |
c906108c | 1665 | else |
0e828ed1 | 1666 | tdp = parse_and_eval_long (args); |
c906108c SS |
1667 | |
1668 | sprintf (target_buf, "QTFrame:tdp:%x", tdp); | |
6d820c5c | 1669 | finish_tfind_command (&target_buf, &target_buf_size, from_tty); |
c906108c SS |
1670 | } |
1671 | else | |
8a3fe4f8 | 1672 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1673 | } |
1674 | ||
1675 | /* TFIND LINE command: | |
c5aa993b | 1676 | |
c906108c | 1677 | This command will take a sourceline for argument, just like BREAK |
d183932d | 1678 | or TRACE (ie. anything that "decode_line_1" can handle). |
c5aa993b | 1679 | |
c906108c SS |
1680 | With no argument, this command will find the next trace frame |
1681 | corresponding to a source line OTHER THAN THE CURRENT ONE. */ | |
1682 | ||
1683 | static void | |
fba45db2 | 1684 | trace_find_line_command (char *args, int from_tty) |
d183932d | 1685 | { |
c906108c SS |
1686 | static CORE_ADDR start_pc, end_pc; |
1687 | struct symtabs_and_lines sals; | |
1688 | struct symtab_and_line sal; | |
c906108c | 1689 | struct cleanup *old_chain; |
104c1213 | 1690 | char startpc_str[40], endpc_str[40]; |
c906108c SS |
1691 | |
1692 | if (target_is_remote ()) | |
1693 | { | |
1694 | if (args == 0 || *args == 0) | |
1695 | { | |
bdd78e62 | 1696 | sal = find_pc_line (get_frame_pc (get_current_frame ()), 0); |
c906108c SS |
1697 | sals.nelts = 1; |
1698 | sals.sals = (struct symtab_and_line *) | |
1699 | xmalloc (sizeof (struct symtab_and_line)); | |
1700 | sals.sals[0] = sal; | |
1701 | } | |
1702 | else | |
1703 | { | |
1704 | sals = decode_line_spec (args, 1); | |
c5aa993b | 1705 | sal = sals.sals[0]; |
c906108c SS |
1706 | } |
1707 | ||
b8c9b27d | 1708 | old_chain = make_cleanup (xfree, sals.sals); |
c906108c SS |
1709 | if (sal.symtab == 0) |
1710 | { | |
1711 | printf_filtered ("TFIND: No line number information available"); | |
1712 | if (sal.pc != 0) | |
1713 | { | |
d183932d MS |
1714 | /* This is useful for "info line *0x7f34". If we can't |
1715 | tell the user about a source line, at least let them | |
1716 | have the symbolic address. */ | |
c906108c SS |
1717 | printf_filtered (" for address "); |
1718 | wrap_here (" "); | |
1719 | print_address (sal.pc, gdb_stdout); | |
1720 | printf_filtered (";\n -- will attempt to find by PC. \n"); | |
1721 | } | |
1722 | else | |
1723 | { | |
1724 | printf_filtered (".\n"); | |
d183932d | 1725 | return; /* No line, no PC; what can we do? */ |
c906108c SS |
1726 | } |
1727 | } | |
1728 | else if (sal.line > 0 | |
1729 | && find_line_pc_range (sal, &start_pc, &end_pc)) | |
1730 | { | |
1731 | if (start_pc == end_pc) | |
1732 | { | |
1733 | printf_filtered ("Line %d of \"%s\"", | |
1734 | sal.line, sal.symtab->filename); | |
1735 | wrap_here (" "); | |
1736 | printf_filtered (" is at address "); | |
1737 | print_address (start_pc, gdb_stdout); | |
1738 | wrap_here (" "); | |
1739 | printf_filtered (" but contains no code.\n"); | |
1740 | sal = find_pc_line (start_pc, 0); | |
1741 | if (sal.line > 0 && | |
1742 | find_line_pc_range (sal, &start_pc, &end_pc) && | |
1743 | start_pc != end_pc) | |
1744 | printf_filtered ("Attempting to find line %d instead.\n", | |
1745 | sal.line); | |
1746 | else | |
8a3fe4f8 | 1747 | error (_("Cannot find a good line.")); |
c906108c SS |
1748 | } |
1749 | } | |
1750 | else | |
1751 | /* Is there any case in which we get here, and have an address | |
d183932d MS |
1752 | which the user would want to see? If we have debugging |
1753 | symbols and no line numbers? */ | |
8a3fe4f8 | 1754 | error (_("Line number %d is out of range for \"%s\"."), |
c906108c SS |
1755 | sal.line, sal.symtab->filename); |
1756 | ||
104c1213 JM |
1757 | sprintf_vma (startpc_str, start_pc); |
1758 | sprintf_vma (endpc_str, end_pc - 1); | |
d183932d MS |
1759 | /* Find within range of stated line. */ |
1760 | if (args && *args) | |
1761 | sprintf (target_buf, "QTFrame:range:%s:%s", | |
1762 | startpc_str, endpc_str); | |
1763 | /* Find OUTSIDE OF range of CURRENT line. */ | |
1764 | else | |
1765 | sprintf (target_buf, "QTFrame:outside:%s:%s", | |
1766 | startpc_str, endpc_str); | |
6d820c5c | 1767 | finish_tfind_command (&target_buf, &target_buf_size, |
d183932d | 1768 | from_tty); |
c906108c SS |
1769 | do_cleanups (old_chain); |
1770 | } | |
1771 | else | |
8a3fe4f8 | 1772 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1773 | } |
1774 | ||
1775 | /* tfind range command */ | |
1776 | static void | |
fba45db2 | 1777 | trace_find_range_command (char *args, int from_tty) |
104c1213 | 1778 | { |
c906108c | 1779 | static CORE_ADDR start, stop; |
104c1213 | 1780 | char start_str[40], stop_str[40]; |
c906108c SS |
1781 | char *tmp; |
1782 | ||
1783 | if (target_is_remote ()) | |
1784 | { | |
1785 | if (args == 0 || *args == 0) | |
d183932d | 1786 | { /* XXX FIXME: what should default behavior be? */ |
c906108c SS |
1787 | printf_filtered ("Usage: tfind range <startaddr>,<endaddr>\n"); |
1788 | return; | |
1789 | } | |
1790 | ||
c5aa993b | 1791 | if (0 != (tmp = strchr (args, ','))) |
c906108c SS |
1792 | { |
1793 | *tmp++ = '\0'; /* terminate start address */ | |
104c1213 | 1794 | while (isspace ((int) *tmp)) |
c906108c SS |
1795 | tmp++; |
1796 | start = parse_and_eval_address (args); | |
c5aa993b | 1797 | stop = parse_and_eval_address (tmp); |
c906108c SS |
1798 | } |
1799 | else | |
c5aa993b | 1800 | { /* no explicit end address? */ |
c906108c | 1801 | start = parse_and_eval_address (args); |
c5aa993b | 1802 | stop = start + 1; /* ??? */ |
c906108c SS |
1803 | } |
1804 | ||
104c1213 JM |
1805 | sprintf_vma (start_str, start); |
1806 | sprintf_vma (stop_str, stop); | |
1807 | sprintf (target_buf, "QTFrame:range:%s:%s", start_str, stop_str); | |
6d820c5c | 1808 | finish_tfind_command (&target_buf, &target_buf_size, from_tty); |
c906108c SS |
1809 | } |
1810 | else | |
8a3fe4f8 | 1811 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1812 | } |
1813 | ||
1814 | /* tfind outside command */ | |
1815 | static void | |
fba45db2 | 1816 | trace_find_outside_command (char *args, int from_tty) |
104c1213 | 1817 | { |
c906108c | 1818 | CORE_ADDR start, stop; |
104c1213 | 1819 | char start_str[40], stop_str[40]; |
c906108c SS |
1820 | char *tmp; |
1821 | ||
1822 | if (target_is_remote ()) | |
1823 | { | |
1824 | if (args == 0 || *args == 0) | |
d183932d | 1825 | { /* XXX FIXME: what should default behavior be? */ |
c906108c SS |
1826 | printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n"); |
1827 | return; | |
1828 | } | |
1829 | ||
c5aa993b | 1830 | if (0 != (tmp = strchr (args, ','))) |
c906108c SS |
1831 | { |
1832 | *tmp++ = '\0'; /* terminate start address */ | |
104c1213 | 1833 | while (isspace ((int) *tmp)) |
c906108c SS |
1834 | tmp++; |
1835 | start = parse_and_eval_address (args); | |
c5aa993b | 1836 | stop = parse_and_eval_address (tmp); |
c906108c SS |
1837 | } |
1838 | else | |
c5aa993b | 1839 | { /* no explicit end address? */ |
c906108c | 1840 | start = parse_and_eval_address (args); |
c5aa993b | 1841 | stop = start + 1; /* ??? */ |
c906108c SS |
1842 | } |
1843 | ||
104c1213 JM |
1844 | sprintf_vma (start_str, start); |
1845 | sprintf_vma (stop_str, stop); | |
1846 | sprintf (target_buf, "QTFrame:outside:%s:%s", start_str, stop_str); | |
6d820c5c | 1847 | finish_tfind_command (&target_buf, &target_buf_size, from_tty); |
c906108c SS |
1848 | } |
1849 | else | |
8a3fe4f8 | 1850 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1851 | } |
1852 | ||
c906108c SS |
1853 | /* info scope command: list the locals for a scope. */ |
1854 | static void | |
fba45db2 | 1855 | scope_info (char *args, int from_tty) |
c906108c | 1856 | { |
c906108c SS |
1857 | struct symtabs_and_lines sals; |
1858 | struct symbol *sym; | |
1859 | struct minimal_symbol *msym; | |
1860 | struct block *block; | |
1861 | char **canonical, *symname, *save_args = args; | |
de4f826b DC |
1862 | struct dict_iterator iter; |
1863 | int j, count = 0; | |
c906108c SS |
1864 | |
1865 | if (args == 0 || *args == 0) | |
8a3fe4f8 | 1866 | error (_("requires an argument (function, line or *addr) to define a scope")); |
c906108c | 1867 | |
68219205 | 1868 | sals = decode_line_1 (&args, 1, NULL, 0, &canonical, NULL); |
c906108c | 1869 | if (sals.nelts == 0) |
450bd37b | 1870 | return; /* presumably decode_line_1 has already warned */ |
c906108c SS |
1871 | |
1872 | /* Resolve line numbers to PC */ | |
1873 | resolve_sal_pc (&sals.sals[0]); | |
1874 | block = block_for_pc (sals.sals[0].pc); | |
1875 | ||
1876 | while (block != 0) | |
1877 | { | |
c5aa993b | 1878 | QUIT; /* allow user to bail out with ^C */ |
de4f826b | 1879 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
c906108c | 1880 | { |
c5aa993b | 1881 | QUIT; /* allow user to bail out with ^C */ |
c906108c SS |
1882 | if (count == 0) |
1883 | printf_filtered ("Scope for %s:\n", save_args); | |
1884 | count++; | |
e88c90f2 | 1885 | |
3567439c | 1886 | symname = SYMBOL_PRINT_NAME (sym); |
c906108c | 1887 | if (symname == NULL || *symname == '\0') |
c5aa993b | 1888 | continue; /* probably botched, certainly useless */ |
c906108c SS |
1889 | |
1890 | printf_filtered ("Symbol %s is ", symname); | |
c5aa993b JM |
1891 | switch (SYMBOL_CLASS (sym)) |
1892 | { | |
1893 | default: | |
1894 | case LOC_UNDEF: /* messed up symbol? */ | |
1895 | printf_filtered ("a bogus symbol, class %d.\n", | |
1896 | SYMBOL_CLASS (sym)); | |
1897 | count--; /* don't count this one */ | |
1898 | continue; | |
1899 | case LOC_CONST: | |
104c1213 | 1900 | printf_filtered ("a constant with value %ld (0x%lx)", |
c5aa993b JM |
1901 | SYMBOL_VALUE (sym), SYMBOL_VALUE (sym)); |
1902 | break; | |
1903 | case LOC_CONST_BYTES: | |
1904 | printf_filtered ("constant bytes: "); | |
1905 | if (SYMBOL_TYPE (sym)) | |
1906 | for (j = 0; j < TYPE_LENGTH (SYMBOL_TYPE (sym)); j++) | |
1907 | fprintf_filtered (gdb_stdout, " %02x", | |
1908 | (unsigned) SYMBOL_VALUE_BYTES (sym)[j]); | |
1909 | break; | |
1910 | case LOC_STATIC: | |
1911 | printf_filtered ("in static storage at address "); | |
ed49a04f | 1912 | printf_filtered ("%s", paddress (SYMBOL_VALUE_ADDRESS (sym))); |
c5aa993b JM |
1913 | break; |
1914 | case LOC_REGISTER: | |
2a2d4dc3 AS |
1915 | if (SYMBOL_IS_ARGUMENT (sym)) |
1916 | printf_filtered ("an argument in register $%s", | |
1917 | gdbarch_register_name | |
1918 | (current_gdbarch, SYMBOL_VALUE (sym))); | |
1919 | else | |
1920 | printf_filtered ("a local variable in register $%s", | |
1921 | gdbarch_register_name | |
c9f4d572 | 1922 | (current_gdbarch, SYMBOL_VALUE (sym))); |
c5aa993b JM |
1923 | break; |
1924 | case LOC_ARG: | |
c5aa993b JM |
1925 | printf_filtered ("an argument at stack/frame offset %ld", |
1926 | SYMBOL_VALUE (sym)); | |
1927 | break; | |
1928 | case LOC_LOCAL: | |
1929 | printf_filtered ("a local variable at frame offset %ld", | |
1930 | SYMBOL_VALUE (sym)); | |
1931 | break; | |
1932 | case LOC_REF_ARG: | |
1933 | printf_filtered ("a reference argument at offset %ld", | |
1934 | SYMBOL_VALUE (sym)); | |
1935 | break; | |
c5aa993b JM |
1936 | case LOC_REGPARM_ADDR: |
1937 | printf_filtered ("the address of an argument, in register $%s", | |
c9f4d572 UW |
1938 | gdbarch_register_name |
1939 | (current_gdbarch, SYMBOL_VALUE (sym))); | |
c5aa993b JM |
1940 | break; |
1941 | case LOC_TYPEDEF: | |
1942 | printf_filtered ("a typedef.\n"); | |
1943 | continue; | |
1944 | case LOC_LABEL: | |
1945 | printf_filtered ("a label at address "); | |
ed49a04f | 1946 | printf_filtered ("%s", paddress (SYMBOL_VALUE_ADDRESS (sym))); |
c5aa993b JM |
1947 | break; |
1948 | case LOC_BLOCK: | |
1949 | printf_filtered ("a function at address "); | |
ed49a04f | 1950 | printf_filtered ("%s", paddress (BLOCK_START (SYMBOL_BLOCK_VALUE (sym)))); |
c5aa993b | 1951 | break; |
c5aa993b | 1952 | case LOC_UNRESOLVED: |
3567439c | 1953 | msym = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym), |
450bd37b | 1954 | NULL, NULL); |
c5aa993b JM |
1955 | if (msym == NULL) |
1956 | printf_filtered ("Unresolved Static"); | |
1957 | else | |
1958 | { | |
1959 | printf_filtered ("static storage at address "); | |
ed49a04f | 1960 | printf_filtered ("%s", paddress (SYMBOL_VALUE_ADDRESS (msym))); |
c5aa993b JM |
1961 | } |
1962 | break; | |
1963 | case LOC_OPTIMIZED_OUT: | |
1964 | printf_filtered ("optimized out.\n"); | |
1965 | continue; | |
450bd37b | 1966 | case LOC_COMPUTED: |
450bd37b MS |
1967 | SYMBOL_OPS (sym)->describe_location (sym, gdb_stdout); |
1968 | break; | |
c5aa993b | 1969 | } |
c906108c | 1970 | if (SYMBOL_TYPE (sym)) |
c5aa993b | 1971 | printf_filtered (", length %d.\n", |
450bd37b | 1972 | TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym)))); |
c906108c SS |
1973 | } |
1974 | if (BLOCK_FUNCTION (block)) | |
1975 | break; | |
1976 | else | |
1977 | block = BLOCK_SUPERBLOCK (block); | |
1978 | } | |
1979 | if (count <= 0) | |
1980 | printf_filtered ("Scope for %s contains no locals or arguments.\n", | |
1981 | save_args); | |
1982 | } | |
1983 | ||
1984 | /* worker function (cleanup) */ | |
1985 | static void | |
710b33bd | 1986 | replace_comma (void *data) |
c906108c | 1987 | { |
710b33bd | 1988 | char *comma = data; |
c906108c SS |
1989 | *comma = ','; |
1990 | } | |
1991 | ||
1992 | /* tdump command */ | |
1993 | static void | |
fba45db2 | 1994 | trace_dump_command (char *args, int from_tty) |
c906108c | 1995 | { |
515630c5 UW |
1996 | struct regcache *regcache; |
1997 | struct gdbarch *gdbarch; | |
1042e4c0 | 1998 | struct breakpoint *t; |
c906108c | 1999 | struct action_line *action; |
c5aa993b JM |
2000 | char *action_exp, *next_comma; |
2001 | struct cleanup *old_cleanups; | |
2002 | int stepping_actions = 0; | |
2003 | int stepping_frame = 0; | |
c906108c SS |
2004 | |
2005 | if (!target_is_remote ()) | |
2006 | { | |
8a3fe4f8 | 2007 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
2008 | return; |
2009 | } | |
2010 | ||
2011 | if (tracepoint_number == -1) | |
2012 | { | |
8a3fe4f8 | 2013 | warning (_("No current trace frame.")); |
c906108c SS |
2014 | return; |
2015 | } | |
2016 | ||
1042e4c0 | 2017 | t = get_tracepoint (tracepoint_number); |
c906108c SS |
2018 | |
2019 | if (t == NULL) | |
8a3fe4f8 | 2020 | error (_("No known tracepoint matches 'current' tracepoint #%d."), |
c906108c SS |
2021 | tracepoint_number); |
2022 | ||
2023 | old_cleanups = make_cleanup (null_cleanup, NULL); | |
2024 | ||
c5aa993b | 2025 | printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n", |
c906108c SS |
2026 | tracepoint_number, traceframe_number); |
2027 | ||
2028 | /* The current frame is a trap frame if the frame PC is equal | |
2029 | to the tracepoint PC. If not, then the current frame was | |
2030 | collected during single-stepping. */ | |
2031 | ||
515630c5 UW |
2032 | regcache = get_current_regcache (); |
2033 | gdbarch = get_regcache_arch (regcache); | |
2034 | ||
1042e4c0 | 2035 | stepping_frame = (t->loc->address != (regcache_read_pc (regcache) |
515630c5 | 2036 | - gdbarch_decr_pc_after_break (gdbarch))); |
c906108c SS |
2037 | |
2038 | for (action = t->actions; action; action = action->next) | |
2039 | { | |
2040 | struct cmd_list_element *cmd; | |
2041 | ||
c5aa993b | 2042 | QUIT; /* allow user to bail out with ^C */ |
c906108c | 2043 | action_exp = action->action; |
104c1213 | 2044 | while (isspace ((int) *action_exp)) |
c906108c SS |
2045 | action_exp++; |
2046 | ||
2047 | /* The collection actions to be done while stepping are | |
c5aa993b | 2048 | bracketed by the commands "while-stepping" and "end". */ |
c906108c SS |
2049 | |
2050 | if (*action_exp == '#') /* comment line */ | |
2051 | continue; | |
2052 | ||
2053 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); | |
2054 | if (cmd == 0) | |
8a3fe4f8 | 2055 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 2056 | |
bbaca940 | 2057 | if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
c906108c | 2058 | stepping_actions = 1; |
bbaca940 | 2059 | else if (cmd_cfunc_eq (cmd, end_actions_pseudocommand)) |
c906108c | 2060 | stepping_actions = 0; |
bbaca940 | 2061 | else if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c SS |
2062 | { |
2063 | /* Display the collected data. | |
d183932d MS |
2064 | For the trap frame, display only what was collected at |
2065 | the trap. Likewise for stepping frames, display only | |
2066 | what was collected while stepping. This means that the | |
2067 | two boolean variables, STEPPING_FRAME and | |
2068 | STEPPING_ACTIONS should be equal. */ | |
c906108c SS |
2069 | if (stepping_frame == stepping_actions) |
2070 | { | |
c5aa993b JM |
2071 | do |
2072 | { /* repeat over a comma-separated list */ | |
2073 | QUIT; /* allow user to bail out with ^C */ | |
2074 | if (*action_exp == ',') | |
2075 | action_exp++; | |
104c1213 | 2076 | while (isspace ((int) *action_exp)) |
c5aa993b JM |
2077 | action_exp++; |
2078 | ||
2079 | next_comma = strchr (action_exp, ','); | |
2080 | ||
2081 | if (0 == strncasecmp (action_exp, "$reg", 4)) | |
2082 | registers_info (NULL, from_tty); | |
2083 | else if (0 == strncasecmp (action_exp, "$loc", 4)) | |
2084 | locals_info (NULL, from_tty); | |
2085 | else if (0 == strncasecmp (action_exp, "$arg", 4)) | |
2086 | args_info (NULL, from_tty); | |
2087 | else | |
2088 | { /* variable */ | |
2089 | if (next_comma) | |
2090 | { | |
2091 | make_cleanup (replace_comma, next_comma); | |
2092 | *next_comma = '\0'; | |
2093 | } | |
2094 | printf_filtered ("%s = ", action_exp); | |
2095 | output_command (action_exp, from_tty); | |
2096 | printf_filtered ("\n"); | |
2097 | } | |
2098 | if (next_comma) | |
2099 | *next_comma = ','; | |
2100 | action_exp = next_comma; | |
2101 | } | |
2102 | while (action_exp && *action_exp == ','); | |
c906108c SS |
2103 | } |
2104 | } | |
2105 | } | |
2106 | discard_cleanups (old_cleanups); | |
2107 | } | |
2108 | ||
2109 | /* Convert the memory pointed to by mem into hex, placing result in buf. | |
2110 | * Return a pointer to the last char put in buf (null) | |
2111 | * "stolen" from sparc-stub.c | |
2112 | */ | |
2113 | ||
c5aa993b | 2114 | static const char hexchars[] = "0123456789abcdef"; |
c906108c | 2115 | |
47b667de AC |
2116 | static char * |
2117 | mem2hex (gdb_byte *mem, char *buf, int count) | |
c906108c | 2118 | { |
47b667de | 2119 | gdb_byte ch; |
c906108c SS |
2120 | |
2121 | while (count-- > 0) | |
2122 | { | |
2123 | ch = *mem++; | |
2124 | ||
2125 | *buf++ = hexchars[ch >> 4]; | |
2126 | *buf++ = hexchars[ch & 0xf]; | |
2127 | } | |
2128 | ||
2129 | *buf = 0; | |
2130 | ||
2131 | return buf; | |
2132 | } | |
2133 | ||
c5aa993b | 2134 | int |
fba45db2 | 2135 | get_traceframe_number (void) |
c906108c | 2136 | { |
c5aa993b | 2137 | return traceframe_number; |
c906108c SS |
2138 | } |
2139 | ||
2140 | ||
2141 | /* module initialization */ | |
2142 | void | |
fba45db2 | 2143 | _initialize_tracepoint (void) |
c906108c | 2144 | { |
fa58ee11 EZ |
2145 | struct cmd_list_element *c; |
2146 | ||
c906108c SS |
2147 | traceframe_number = -1; |
2148 | tracepoint_number = -1; | |
2149 | ||
c906108c SS |
2150 | if (tracepoint_list.list == NULL) |
2151 | { | |
2152 | tracepoint_list.listsize = 128; | |
c5aa993b | 2153 | tracepoint_list.list = xmalloc |
c906108c SS |
2154 | (tracepoint_list.listsize * sizeof (struct memrange)); |
2155 | } | |
2156 | if (tracepoint_list.aexpr_list == NULL) | |
2157 | { | |
2158 | tracepoint_list.aexpr_listsize = 128; | |
2159 | tracepoint_list.aexpr_list = xmalloc | |
2160 | (tracepoint_list.aexpr_listsize * sizeof (struct agent_expr *)); | |
2161 | } | |
2162 | ||
2163 | if (stepping_list.list == NULL) | |
2164 | { | |
2165 | stepping_list.listsize = 128; | |
c5aa993b | 2166 | stepping_list.list = xmalloc |
c906108c SS |
2167 | (stepping_list.listsize * sizeof (struct memrange)); |
2168 | } | |
2169 | ||
2170 | if (stepping_list.aexpr_list == NULL) | |
2171 | { | |
2172 | stepping_list.aexpr_listsize = 128; | |
2173 | stepping_list.aexpr_list = xmalloc | |
2174 | (stepping_list.aexpr_listsize * sizeof (struct agent_expr *)); | |
2175 | } | |
2176 | ||
c5aa993b | 2177 | add_info ("scope", scope_info, |
1bedd215 | 2178 | _("List the variables local to a scope")); |
c906108c | 2179 | |
e00d1dc8 | 2180 | add_cmd ("tracepoints", class_trace, NULL, |
1a966eab | 2181 | _("Tracing of program execution without stopping the program."), |
c906108c SS |
2182 | &cmdlist); |
2183 | ||
c5aa993b | 2184 | add_com ("tdump", class_trace, trace_dump_command, |
1bedd215 | 2185 | _("Print everything collected at the current tracepoint.")); |
c906108c | 2186 | |
1bedd215 AC |
2187 | add_prefix_cmd ("tfind", class_trace, trace_find_command, _("\ |
2188 | Select a trace frame;\n\ | |
2189 | No argument means forward by one frame; '-' means backward by one frame."), | |
c906108c SS |
2190 | &tfindlist, "tfind ", 1, &cmdlist); |
2191 | ||
1a966eab AC |
2192 | add_cmd ("outside", class_trace, trace_find_outside_command, _("\ |
2193 | Select a trace frame whose PC is outside the given range.\n\ | |
2194 | Usage: tfind outside addr1, addr2"), | |
c906108c SS |
2195 | &tfindlist); |
2196 | ||
1a966eab AC |
2197 | add_cmd ("range", class_trace, trace_find_range_command, _("\ |
2198 | Select a trace frame whose PC is in the given range.\n\ | |
2199 | Usage: tfind range addr1,addr2"), | |
c906108c SS |
2200 | &tfindlist); |
2201 | ||
1a966eab AC |
2202 | add_cmd ("line", class_trace, trace_find_line_command, _("\ |
2203 | Select a trace frame by source line.\n\ | |
c906108c SS |
2204 | Argument can be a line number (with optional source file), \n\ |
2205 | a function name, or '*' followed by an address.\n\ | |
1a966eab | 2206 | Default argument is 'the next source line that was traced'."), |
c906108c SS |
2207 | &tfindlist); |
2208 | ||
1a966eab AC |
2209 | add_cmd ("tracepoint", class_trace, trace_find_tracepoint_command, _("\ |
2210 | Select a trace frame by tracepoint number.\n\ | |
2211 | Default is the tracepoint for the current trace frame."), | |
c906108c SS |
2212 | &tfindlist); |
2213 | ||
1a966eab AC |
2214 | add_cmd ("pc", class_trace, trace_find_pc_command, _("\ |
2215 | Select a trace frame by PC.\n\ | |
2216 | Default is the current PC, or the PC of the current trace frame."), | |
c906108c SS |
2217 | &tfindlist); |
2218 | ||
1a966eab AC |
2219 | add_cmd ("end", class_trace, trace_find_end_command, _("\ |
2220 | Synonym for 'none'.\n\ | |
2221 | De-select any trace frame and resume 'live' debugging."), | |
c906108c SS |
2222 | &tfindlist); |
2223 | ||
2224 | add_cmd ("none", class_trace, trace_find_none_command, | |
1a966eab | 2225 | _("De-select any trace frame and resume 'live' debugging."), |
c906108c SS |
2226 | &tfindlist); |
2227 | ||
2228 | add_cmd ("start", class_trace, trace_find_start_command, | |
1a966eab | 2229 | _("Select the first trace frame in the trace buffer."), |
c906108c SS |
2230 | &tfindlist); |
2231 | ||
c5aa993b | 2232 | add_com ("tstatus", class_trace, trace_status_command, |
1bedd215 | 2233 | _("Display the status of the current trace data collection.")); |
c906108c | 2234 | |
c5aa993b | 2235 | add_com ("tstop", class_trace, trace_stop_command, |
1bedd215 | 2236 | _("Stop trace data collection.")); |
c906108c SS |
2237 | |
2238 | add_com ("tstart", class_trace, trace_start_command, | |
1bedd215 | 2239 | _("Start trace data collection.")); |
c906108c | 2240 | |
1bedd215 AC |
2241 | add_com ("end", class_trace, end_actions_pseudocommand, _("\ |
2242 | Ends a list of commands or actions.\n\ | |
c906108c SS |
2243 | Several GDB commands allow you to enter a list of commands or actions.\n\ |
2244 | Entering \"end\" on a line by itself is the normal way to terminate\n\ | |
2245 | such a list.\n\n\ | |
1bedd215 | 2246 | Note: the \"end\" command cannot be used at the gdb prompt.")); |
c906108c | 2247 | |
1bedd215 AC |
2248 | add_com ("while-stepping", class_trace, while_stepping_pseudocommand, _("\ |
2249 | Specify single-stepping behavior at a tracepoint.\n\ | |
c906108c SS |
2250 | Argument is number of instructions to trace in single-step mode\n\ |
2251 | following the tracepoint. This command is normally followed by\n\ | |
2252 | one or more \"collect\" commands, to specify what to collect\n\ | |
2253 | while single-stepping.\n\n\ | |
1bedd215 | 2254 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 2255 | |
c5aa993b JM |
2256 | add_com_alias ("ws", "while-stepping", class_alias, 0); |
2257 | add_com_alias ("stepping", "while-stepping", class_alias, 0); | |
c906108c | 2258 | |
1bedd215 AC |
2259 | add_com ("collect", class_trace, collect_pseudocommand, _("\ |
2260 | Specify one or more data items to be collected at a tracepoint.\n\ | |
c906108c SS |
2261 | Accepts a comma-separated list of (one or more) expressions. GDB will\n\ |
2262 | collect all data (variables, registers) referenced by that expression.\n\ | |
2263 | Also accepts the following special arguments:\n\ | |
2264 | $regs -- all registers.\n\ | |
2265 | $args -- all function arguments.\n\ | |
2266 | $locals -- all variables local to the block/function scope.\n\ | |
1bedd215 | 2267 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 2268 | |
1bedd215 AC |
2269 | add_com ("actions", class_trace, trace_actions_command, _("\ |
2270 | Specify the actions to be taken at a tracepoint.\n\ | |
c906108c SS |
2271 | Tracepoint actions may include collecting of specified data, \n\ |
2272 | single-stepping, or enabling/disabling other tracepoints, \n\ | |
1bedd215 | 2273 | depending on target's capabilities.")); |
c906108c | 2274 | |
6d820c5c DJ |
2275 | target_buf_size = 2048; |
2276 | target_buf = xmalloc (target_buf_size); | |
c906108c | 2277 | } |