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" |
41575630 | 43 | #include "gdbcore.h" |
c906108c SS |
44 | |
45 | #include "ax.h" | |
46 | #include "ax-gdb.h" | |
47 | ||
48 | /* readline include files */ | |
dbda9972 AC |
49 | #include "readline/readline.h" |
50 | #include "readline/history.h" | |
c906108c SS |
51 | |
52 | /* readline defines this. */ | |
53 | #undef savestring | |
54 | ||
55 | #ifdef HAVE_UNISTD_H | |
56 | #include <unistd.h> | |
57 | #endif | |
58 | ||
d183932d MS |
59 | /* Maximum length of an agent aexpression. |
60 | This accounts for the fact that packets are limited to 400 bytes | |
c906108c SS |
61 | (which includes everything -- including the checksum), and assumes |
62 | the worst case of maximum length for each of the pieces of a | |
63 | continuation packet. | |
c5aa993b | 64 | |
c906108c SS |
65 | NOTE: expressions get mem2hex'ed otherwise this would be twice as |
66 | large. (400 - 31)/2 == 184 */ | |
67 | #define MAX_AGENT_EXPR_LEN 184 | |
68 | ||
69 | ||
9a4105ab AC |
70 | extern void (*deprecated_readline_begin_hook) (char *, ...); |
71 | extern char *(*deprecated_readline_hook) (char *); | |
72 | extern void (*deprecated_readline_end_hook) (void); | |
c906108c | 73 | |
104c1213 JM |
74 | /* GDB commands implemented in other modules: |
75 | */ | |
76 | ||
a14ed312 | 77 | extern void output_command (char *, int); |
104c1213 | 78 | |
c906108c SS |
79 | /* |
80 | Tracepoint.c: | |
81 | ||
82 | This module defines the following debugger commands: | |
83 | trace : set a tracepoint on a function, line, or address. | |
84 | info trace : list all debugger-defined tracepoints. | |
85 | delete trace : delete one or more tracepoints. | |
86 | enable trace : enable one or more tracepoints. | |
87 | disable trace : disable one or more tracepoints. | |
88 | actions : specify actions to be taken at a tracepoint. | |
89 | passcount : specify a pass count for a tracepoint. | |
90 | tstart : start a trace experiment. | |
91 | tstop : stop a trace experiment. | |
92 | tstatus : query the status of a trace experiment. | |
93 | tfind : find a trace frame in the trace buffer. | |
94 | tdump : print everything collected at the current tracepoint. | |
95 | save-tracepoints : write tracepoint setup into a file. | |
96 | ||
97 | This module defines the following user-visible debugger variables: | |
98 | $trace_frame : sequence number of trace frame currently being debugged. | |
99 | $trace_line : source line of trace frame currently being debugged. | |
100 | $trace_file : source file of trace frame currently being debugged. | |
101 | $tracepoint : tracepoint number of trace frame currently being debugged. | |
c5aa993b | 102 | */ |
c906108c SS |
103 | |
104 | ||
105 | /* ======= Important global variables: ======= */ | |
106 | ||
c906108c SS |
107 | /* Number of last traceframe collected. */ |
108 | static int traceframe_number; | |
109 | ||
110 | /* Tracepoint for last traceframe collected. */ | |
111 | static int tracepoint_number; | |
112 | ||
113 | /* Symbol for function for last traceframe collected */ | |
114 | static struct symbol *traceframe_fun; | |
115 | ||
116 | /* Symtab and line for last traceframe collected */ | |
117 | static struct symtab_and_line traceframe_sal; | |
118 | ||
119 | /* Tracing command lists */ | |
120 | static struct cmd_list_element *tfindlist; | |
121 | ||
122 | /* ======= Important command functions: ======= */ | |
a14ed312 KB |
123 | static void trace_actions_command (char *, int); |
124 | static void trace_start_command (char *, int); | |
125 | static void trace_stop_command (char *, int); | |
126 | static void trace_status_command (char *, int); | |
127 | static void trace_find_command (char *, int); | |
128 | static void trace_find_pc_command (char *, int); | |
129 | static void trace_find_tracepoint_command (char *, int); | |
130 | static void trace_find_line_command (char *, int); | |
131 | static void trace_find_range_command (char *, int); | |
132 | static void trace_find_outside_command (char *, int); | |
133 | static void tracepoint_save_command (char *, int); | |
134 | static void trace_dump_command (char *, int); | |
c906108c SS |
135 | |
136 | /* support routines */ | |
c906108c SS |
137 | |
138 | struct collection_list; | |
a14ed312 | 139 | static void add_aexpr (struct collection_list *, struct agent_expr *); |
47b667de | 140 | static char *mem2hex (gdb_byte *, char *, int); |
a14ed312 KB |
141 | static void add_register (struct collection_list *collection, |
142 | unsigned int regno); | |
1042e4c0 | 143 | static struct cleanup *make_cleanup_free_actions (struct breakpoint *t); |
a14ed312 KB |
144 | static void free_actions_list (char **actions_list); |
145 | static void free_actions_list_cleanup_wrapper (void *); | |
392a587b | 146 | |
a14ed312 | 147 | extern void _initialize_tracepoint (void); |
c906108c SS |
148 | |
149 | /* Utility: returns true if "target remote" */ | |
150 | static int | |
fba45db2 | 151 | target_is_remote (void) |
c906108c SS |
152 | { |
153 | if (current_target.to_shortname && | |
549678da NS |
154 | (strcmp (current_target.to_shortname, "remote") == 0 |
155 | || strcmp (current_target.to_shortname, "extended-remote") == 0)) | |
c906108c SS |
156 | return 1; |
157 | else | |
158 | return 0; | |
159 | } | |
160 | ||
161 | /* Utility: generate error from an incoming stub packet. */ | |
c5aa993b | 162 | static void |
fba45db2 | 163 | trace_error (char *buf) |
c906108c SS |
164 | { |
165 | if (*buf++ != 'E') | |
166 | return; /* not an error msg */ | |
c5aa993b | 167 | switch (*buf) |
c906108c SS |
168 | { |
169 | case '1': /* malformed packet error */ | |
170 | if (*++buf == '0') /* general case: */ | |
8a3fe4f8 | 171 | error (_("tracepoint.c: error in outgoing packet.")); |
c906108c | 172 | else |
8a3fe4f8 | 173 | error (_("tracepoint.c: error in outgoing packet at field #%ld."), |
c906108c SS |
174 | strtol (buf, NULL, 16)); |
175 | case '2': | |
8a3fe4f8 | 176 | error (_("trace API error 0x%s."), ++buf); |
c906108c | 177 | default: |
8a3fe4f8 | 178 | error (_("Target returns error code '%s'."), buf); |
c906108c SS |
179 | } |
180 | } | |
181 | ||
d183932d | 182 | /* Utility: wait for reply from stub, while accepting "O" packets. */ |
c906108c | 183 | static char * |
6d820c5c DJ |
184 | remote_get_noisy_reply (char **buf_p, |
185 | long *sizeof_buf) | |
c906108c | 186 | { |
d183932d | 187 | do /* Loop on reply from remote stub. */ |
c906108c | 188 | { |
6d820c5c | 189 | char *buf; |
c5aa993b | 190 | QUIT; /* allow user to bail out with ^C */ |
6d820c5c DJ |
191 | getpkt (buf_p, sizeof_buf, 0); |
192 | buf = *buf_p; | |
c906108c | 193 | if (buf[0] == 0) |
8a3fe4f8 | 194 | error (_("Target does not support this command.")); |
c906108c SS |
195 | else if (buf[0] == 'E') |
196 | trace_error (buf); | |
197 | else if (buf[0] == 'O' && | |
198 | buf[1] != 'K') | |
199 | remote_console_output (buf + 1); /* 'O' message from stub */ | |
200 | else | |
c5aa993b JM |
201 | return buf; /* here's the actual reply */ |
202 | } | |
203 | while (1); | |
c906108c SS |
204 | } |
205 | ||
c906108c SS |
206 | /* Set traceframe number to NUM. */ |
207 | static void | |
fba45db2 | 208 | set_traceframe_num (int num) |
c906108c SS |
209 | { |
210 | traceframe_number = num; | |
211 | set_internalvar (lookup_internalvar ("trace_frame"), | |
8b9b9e1a | 212 | value_from_longest (builtin_type_int32, (LONGEST) num)); |
c906108c SS |
213 | } |
214 | ||
215 | /* Set tracepoint number to NUM. */ | |
216 | static void | |
fba45db2 | 217 | set_tracepoint_num (int num) |
c906108c SS |
218 | { |
219 | tracepoint_number = num; | |
220 | set_internalvar (lookup_internalvar ("tracepoint"), | |
8b9b9e1a | 221 | value_from_longest (builtin_type_int32, (LONGEST) num)); |
c906108c SS |
222 | } |
223 | ||
224 | /* Set externally visible debug variables for querying/printing | |
225 | the traceframe context (line, function, file) */ | |
226 | ||
227 | static void | |
fb14de7b | 228 | set_traceframe_context (struct frame_info *trace_frame) |
c906108c | 229 | { |
fb14de7b UW |
230 | CORE_ADDR trace_pc; |
231 | ||
c906108c | 232 | static struct type *func_string, *file_string; |
c5aa993b | 233 | static struct type *func_range, *file_range; |
f976f6d4 AC |
234 | struct value *func_val; |
235 | struct value *file_val; | |
c906108c SS |
236 | int len; |
237 | ||
fb14de7b | 238 | if (trace_frame == NULL) /* Cease debugging any trace buffers. */ |
c906108c SS |
239 | { |
240 | traceframe_fun = 0; | |
241 | traceframe_sal.pc = traceframe_sal.line = 0; | |
242 | traceframe_sal.symtab = NULL; | |
c5aa993b | 243 | set_internalvar (lookup_internalvar ("trace_func"), |
8b9b9e1a | 244 | allocate_value (builtin_type_void)); |
c5aa993b | 245 | set_internalvar (lookup_internalvar ("trace_file"), |
8b9b9e1a | 246 | allocate_value (builtin_type_void)); |
c906108c | 247 | set_internalvar (lookup_internalvar ("trace_line"), |
8b9b9e1a | 248 | value_from_longest (builtin_type_int32, |
d183932d | 249 | (LONGEST) - 1)); |
c906108c SS |
250 | return; |
251 | } | |
252 | ||
d183932d | 253 | /* Save as globals for internal use. */ |
fb14de7b | 254 | trace_pc = get_frame_pc (trace_frame); |
c906108c SS |
255 | traceframe_sal = find_pc_line (trace_pc, 0); |
256 | traceframe_fun = find_pc_function (trace_pc); | |
257 | ||
d183932d MS |
258 | /* Save linenumber as "$trace_line", a debugger variable visible to |
259 | users. */ | |
c906108c | 260 | set_internalvar (lookup_internalvar ("trace_line"), |
8b9b9e1a | 261 | value_from_longest (builtin_type_int32, |
c906108c SS |
262 | (LONGEST) traceframe_sal.line)); |
263 | ||
d183932d MS |
264 | /* Save func name as "$trace_func", a debugger variable visible to |
265 | users. */ | |
c5aa993b | 266 | if (traceframe_fun == NULL || |
3567439c | 267 | SYMBOL_LINKAGE_NAME (traceframe_fun) == NULL) |
c5aa993b | 268 | set_internalvar (lookup_internalvar ("trace_func"), |
8b9b9e1a | 269 | allocate_value (builtin_type_void)); |
c906108c SS |
270 | else |
271 | { | |
3567439c | 272 | len = strlen (SYMBOL_LINKAGE_NAME (traceframe_fun)); |
c5aa993b | 273 | func_range = create_range_type (func_range, |
8b9b9e1a | 274 | builtin_type_int32, 0, len - 1); |
c5aa993b | 275 | func_string = create_array_type (func_string, |
8b9b9e1a | 276 | builtin_type_true_char, func_range); |
c906108c | 277 | func_val = allocate_value (func_string); |
04624583 | 278 | deprecated_set_value_type (func_val, func_string); |
990a07ab | 279 | memcpy (value_contents_raw (func_val), |
3567439c | 280 | SYMBOL_LINKAGE_NAME (traceframe_fun), |
c906108c | 281 | len); |
88e3b34b | 282 | deprecated_set_value_modifiable (func_val, 0); |
c906108c SS |
283 | set_internalvar (lookup_internalvar ("trace_func"), func_val); |
284 | } | |
285 | ||
d183932d MS |
286 | /* Save file name as "$trace_file", a debugger variable visible to |
287 | users. */ | |
c5aa993b | 288 | if (traceframe_sal.symtab == NULL || |
c906108c | 289 | traceframe_sal.symtab->filename == NULL) |
c5aa993b | 290 | set_internalvar (lookup_internalvar ("trace_file"), |
8b9b9e1a | 291 | allocate_value (builtin_type_void)); |
c906108c SS |
292 | else |
293 | { | |
294 | len = strlen (traceframe_sal.symtab->filename); | |
c5aa993b | 295 | file_range = create_range_type (file_range, |
8b9b9e1a | 296 | builtin_type_int32, 0, len - 1); |
c5aa993b | 297 | file_string = create_array_type (file_string, |
8b9b9e1a | 298 | builtin_type_true_char, file_range); |
c906108c | 299 | file_val = allocate_value (file_string); |
04624583 | 300 | deprecated_set_value_type (file_val, file_string); |
990a07ab | 301 | memcpy (value_contents_raw (file_val), |
c5aa993b | 302 | traceframe_sal.symtab->filename, |
c906108c | 303 | len); |
88e3b34b | 304 | deprecated_set_value_modifiable (file_val, 0); |
c906108c SS |
305 | set_internalvar (lookup_internalvar ("trace_file"), file_val); |
306 | } | |
307 | } | |
308 | ||
c906108c SS |
309 | /* ACTIONS functions: */ |
310 | ||
311 | /* Prototypes for action-parsing utility commands */ | |
1042e4c0 | 312 | static void read_actions (struct breakpoint *); |
c906108c SS |
313 | |
314 | /* The three functions: | |
c5aa993b JM |
315 | collect_pseudocommand, |
316 | while_stepping_pseudocommand, and | |
317 | end_actions_pseudocommand | |
c906108c SS |
318 | are placeholders for "commands" that are actually ONLY to be used |
319 | within a tracepoint action list. If the actual function is ever called, | |
320 | it means that somebody issued the "command" at the top level, | |
321 | which is always an error. */ | |
322 | ||
1042e4c0 | 323 | void |
fba45db2 | 324 | end_actions_pseudocommand (char *args, int from_tty) |
c906108c | 325 | { |
8a3fe4f8 | 326 | error (_("This command cannot be used at the top level.")); |
c906108c SS |
327 | } |
328 | ||
1042e4c0 | 329 | void |
fba45db2 | 330 | while_stepping_pseudocommand (char *args, int from_tty) |
c906108c | 331 | { |
8a3fe4f8 | 332 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
333 | } |
334 | ||
335 | static void | |
fba45db2 | 336 | collect_pseudocommand (char *args, int from_tty) |
c906108c | 337 | { |
8a3fe4f8 | 338 | error (_("This command can only be used in a tracepoint actions list.")); |
c906108c SS |
339 | } |
340 | ||
341 | /* Enter a list of actions for a tracepoint. */ | |
342 | static void | |
fba45db2 | 343 | trace_actions_command (char *args, int from_tty) |
c906108c | 344 | { |
1042e4c0 | 345 | struct breakpoint *t; |
c906108c SS |
346 | char tmpbuf[128]; |
347 | char *end_msg = "End with a line saying just \"end\"."; | |
348 | ||
c2d11a7d | 349 | t = get_tracepoint_by_number (&args, 0, 1); |
7a292a7a | 350 | if (t) |
c906108c SS |
351 | { |
352 | sprintf (tmpbuf, "Enter actions for tracepoint %d, one per line.", | |
353 | t->number); | |
354 | ||
355 | if (from_tty) | |
356 | { | |
9a4105ab AC |
357 | if (deprecated_readline_begin_hook) |
358 | (*deprecated_readline_begin_hook) ("%s %s\n", tmpbuf, end_msg); | |
c906108c SS |
359 | else if (input_from_terminal_p ()) |
360 | printf_filtered ("%s\n%s\n", tmpbuf, end_msg); | |
361 | } | |
362 | ||
363 | free_actions (t); | |
364 | t->step_count = 0; /* read_actions may set this */ | |
365 | read_actions (t); | |
366 | ||
9a4105ab AC |
367 | if (deprecated_readline_end_hook) |
368 | (*deprecated_readline_end_hook) (); | |
c906108c SS |
369 | /* tracepoints_changed () */ |
370 | } | |
5c44784c | 371 | /* else just return */ |
c906108c SS |
372 | } |
373 | ||
374 | /* worker function */ | |
375 | static void | |
1042e4c0 | 376 | read_actions (struct breakpoint *t) |
c906108c SS |
377 | { |
378 | char *line; | |
379 | char *prompt1 = "> ", *prompt2 = " > "; | |
380 | char *prompt = prompt1; | |
381 | enum actionline_type linetype; | |
382 | extern FILE *instream; | |
383 | struct action_line *next = NULL, *temp; | |
384 | struct cleanup *old_chain; | |
385 | ||
386 | /* Control-C quits instantly if typed while in this loop | |
387 | since it should not wait until the user types a newline. */ | |
388 | immediate_quit++; | |
1a6fae3c MK |
389 | /* FIXME: kettenis/20010823: Something is wrong here. In this file |
390 | STOP_SIGNAL is never defined. So this code has been left out, at | |
391 | least for quite a while now. Replacing STOP_SIGNAL with SIGTSTP | |
392 | leads to compilation failures since the variable job_control | |
393 | isn't declared. Leave this alone for now. */ | |
c906108c SS |
394 | #ifdef STOP_SIGNAL |
395 | if (job_control) | |
362646f5 | 396 | signal (STOP_SIGNAL, handle_stop_sig); |
c906108c | 397 | #endif |
74b7792f | 398 | old_chain = make_cleanup_free_actions (t); |
c906108c SS |
399 | while (1) |
400 | { | |
d183932d MS |
401 | /* Make sure that all output has been output. Some machines may |
402 | let you get away with leaving out some of the gdb_flush, but | |
403 | not all. */ | |
c906108c SS |
404 | wrap_here (""); |
405 | gdb_flush (gdb_stdout); | |
406 | gdb_flush (gdb_stderr); | |
407 | ||
9a4105ab AC |
408 | if (deprecated_readline_hook && instream == NULL) |
409 | line = (*deprecated_readline_hook) (prompt); | |
c906108c SS |
410 | else if (instream == stdin && ISATTY (instream)) |
411 | { | |
b4f5539f | 412 | line = gdb_readline_wrapper (prompt); |
c5aa993b | 413 | if (line && *line) /* add it to command history */ |
c906108c SS |
414 | add_history (line); |
415 | } | |
416 | else | |
417 | line = gdb_readline (0); | |
418 | ||
549678da | 419 | if (!line) |
d844e34b JB |
420 | { |
421 | line = xstrdup ("end"); | |
422 | printf_filtered ("end\n"); | |
423 | } | |
549678da | 424 | |
c906108c SS |
425 | linetype = validate_actionline (&line, t); |
426 | if (linetype == BADLINE) | |
c5aa993b | 427 | continue; /* already warned -- collect another line */ |
c906108c SS |
428 | |
429 | temp = xmalloc (sizeof (struct action_line)); | |
430 | temp->next = NULL; | |
431 | temp->action = line; | |
432 | ||
433 | if (next == NULL) /* first action for this tracepoint? */ | |
434 | t->actions = next = temp; | |
435 | else | |
436 | { | |
437 | next->next = temp; | |
438 | next = temp; | |
439 | } | |
440 | ||
441 | if (linetype == STEPPING) /* begin "while-stepping" */ | |
7a292a7a SS |
442 | { |
443 | if (prompt == prompt2) | |
444 | { | |
8a3fe4f8 | 445 | warning (_("Already processing 'while-stepping'")); |
7a292a7a SS |
446 | continue; |
447 | } | |
448 | else | |
449 | prompt = prompt2; /* change prompt for stepping actions */ | |
450 | } | |
c906108c | 451 | else if (linetype == END) |
7a292a7a SS |
452 | { |
453 | if (prompt == prompt2) | |
454 | { | |
455 | prompt = prompt1; /* end of single-stepping actions */ | |
456 | } | |
457 | else | |
c5aa993b | 458 | { /* end of actions */ |
7a292a7a SS |
459 | if (t->actions->next == NULL) |
460 | { | |
d183932d MS |
461 | /* An "end" all by itself with no other actions |
462 | means this tracepoint has no actions. | |
463 | Discard empty list. */ | |
7a292a7a SS |
464 | free_actions (t); |
465 | } | |
466 | break; | |
467 | } | |
468 | } | |
c906108c SS |
469 | } |
470 | #ifdef STOP_SIGNAL | |
471 | if (job_control) | |
472 | signal (STOP_SIGNAL, SIG_DFL); | |
473 | #endif | |
8edbea78 | 474 | immediate_quit--; |
c906108c SS |
475 | discard_cleanups (old_chain); |
476 | } | |
477 | ||
478 | /* worker function */ | |
479 | enum actionline_type | |
1042e4c0 | 480 | validate_actionline (char **line, struct breakpoint *t) |
c906108c SS |
481 | { |
482 | struct cmd_list_element *c; | |
483 | struct expression *exp = NULL; | |
c906108c SS |
484 | struct cleanup *old_chain = NULL; |
485 | char *p; | |
486 | ||
15255275 MS |
487 | /* if EOF is typed, *line is NULL */ |
488 | if (*line == NULL) | |
489 | return END; | |
490 | ||
104c1213 | 491 | for (p = *line; isspace ((int) *p);) |
c906108c SS |
492 | p++; |
493 | ||
d183932d MS |
494 | /* Symbol lookup etc. */ |
495 | if (*p == '\0') /* empty line: just prompt for another line. */ | |
c906108c SS |
496 | return BADLINE; |
497 | ||
c5aa993b | 498 | if (*p == '#') /* comment line */ |
c906108c SS |
499 | return GENERIC; |
500 | ||
501 | c = lookup_cmd (&p, cmdlist, "", -1, 1); | |
502 | if (c == 0) | |
503 | { | |
8a3fe4f8 | 504 | warning (_("'%s' is not an action that I know, or is ambiguous."), |
d183932d | 505 | p); |
c906108c SS |
506 | return BADLINE; |
507 | } | |
c5aa993b | 508 | |
bbaca940 | 509 | if (cmd_cfunc_eq (c, collect_pseudocommand)) |
c906108c SS |
510 | { |
511 | struct agent_expr *aexpr; | |
512 | struct agent_reqs areqs; | |
513 | ||
c5aa993b JM |
514 | do |
515 | { /* repeat over a comma-separated list */ | |
516 | QUIT; /* allow user to bail out with ^C */ | |
104c1213 | 517 | while (isspace ((int) *p)) |
c5aa993b | 518 | p++; |
c906108c | 519 | |
c5aa993b JM |
520 | if (*p == '$') /* look for special pseudo-symbols */ |
521 | { | |
c5aa993b JM |
522 | if ((0 == strncasecmp ("reg", p + 1, 3)) || |
523 | (0 == strncasecmp ("arg", p + 1, 3)) || | |
524 | (0 == strncasecmp ("loc", p + 1, 3))) | |
525 | { | |
526 | p = strchr (p, ','); | |
527 | continue; | |
528 | } | |
d183932d | 529 | /* else fall thru, treat p as an expression and parse it! */ |
c5aa993b | 530 | } |
1042e4c0 | 531 | exp = parse_exp_1 (&p, block_for_pc (t->loc->address), 1); |
c13c43fd | 532 | old_chain = make_cleanup (free_current_contents, &exp); |
c906108c | 533 | |
c5aa993b JM |
534 | if (exp->elts[0].opcode == OP_VAR_VALUE) |
535 | { | |
536 | if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_CONST) | |
537 | { | |
8a3fe4f8 | 538 | warning (_("constant %s (value %ld) will not be collected."), |
3567439c | 539 | SYMBOL_PRINT_NAME (exp->elts[2].symbol), |
c5aa993b JM |
540 | SYMBOL_VALUE (exp->elts[2].symbol)); |
541 | return BADLINE; | |
542 | } | |
543 | else if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_OPTIMIZED_OUT) | |
544 | { | |
8a3fe4f8 | 545 | warning (_("%s is optimized away and cannot be collected."), |
3567439c | 546 | SYMBOL_PRINT_NAME (exp->elts[2].symbol)); |
c5aa993b JM |
547 | return BADLINE; |
548 | } | |
549 | } | |
c906108c | 550 | |
d183932d MS |
551 | /* We have something to collect, make sure that the expr to |
552 | bytecode translator can handle it and that it's not too | |
553 | long. */ | |
1042e4c0 | 554 | aexpr = gen_trace_for_expr (t->loc->address, exp); |
f23d52e0 | 555 | make_cleanup_free_agent_expr (aexpr); |
c906108c | 556 | |
c5aa993b | 557 | if (aexpr->len > MAX_AGENT_EXPR_LEN) |
8a3fe4f8 | 558 | error (_("expression too complicated, try simplifying")); |
c906108c | 559 | |
c5aa993b | 560 | ax_reqs (aexpr, &areqs); |
b8c9b27d | 561 | (void) make_cleanup (xfree, areqs.reg_mask); |
c906108c | 562 | |
c5aa993b | 563 | if (areqs.flaw != agent_flaw_none) |
8a3fe4f8 | 564 | error (_("malformed expression")); |
c906108c | 565 | |
c5aa993b | 566 | if (areqs.min_height < 0) |
8a3fe4f8 | 567 | error (_("gdb: Internal error: expression has min height < 0")); |
c906108c | 568 | |
c5aa993b | 569 | if (areqs.max_height > 20) |
8a3fe4f8 | 570 | error (_("expression too complicated, try simplifying")); |
c906108c | 571 | |
c5aa993b JM |
572 | do_cleanups (old_chain); |
573 | } | |
574 | while (p && *p++ == ','); | |
c906108c SS |
575 | return GENERIC; |
576 | } | |
bbaca940 | 577 | else if (cmd_cfunc_eq (c, while_stepping_pseudocommand)) |
c906108c | 578 | { |
c5aa993b | 579 | char *steparg; /* in case warning is necessary */ |
c906108c | 580 | |
104c1213 | 581 | while (isspace ((int) *p)) |
c906108c SS |
582 | p++; |
583 | steparg = p; | |
584 | ||
585 | if (*p == '\0' || | |
586 | (t->step_count = strtol (p, &p, 0)) == 0) | |
587 | { | |
8a3fe4f8 | 588 | warning (_("'%s': bad step-count; command ignored."), *line); |
c906108c SS |
589 | return BADLINE; |
590 | } | |
591 | return STEPPING; | |
592 | } | |
bbaca940 | 593 | else if (cmd_cfunc_eq (c, end_actions_pseudocommand)) |
c906108c SS |
594 | return END; |
595 | else | |
596 | { | |
8a3fe4f8 | 597 | warning (_("'%s' is not a supported tracepoint action."), *line); |
c906108c SS |
598 | return BADLINE; |
599 | } | |
600 | } | |
601 | ||
602 | /* worker function */ | |
c5aa993b | 603 | void |
1042e4c0 | 604 | free_actions (struct breakpoint *t) |
c906108c SS |
605 | { |
606 | struct action_line *line, *next; | |
607 | ||
608 | for (line = t->actions; line; line = next) | |
609 | { | |
610 | next = line->next; | |
c5aa993b | 611 | if (line->action) |
b8c9b27d KB |
612 | xfree (line->action); |
613 | xfree (line); | |
c906108c SS |
614 | } |
615 | t->actions = NULL; | |
616 | } | |
617 | ||
74b7792f AC |
618 | static void |
619 | do_free_actions_cleanup (void *t) | |
620 | { | |
621 | free_actions (t); | |
622 | } | |
623 | ||
624 | static struct cleanup * | |
1042e4c0 | 625 | make_cleanup_free_actions (struct breakpoint *t) |
74b7792f AC |
626 | { |
627 | return make_cleanup (do_free_actions_cleanup, t); | |
628 | } | |
629 | ||
f50e79a4 JB |
630 | enum { |
631 | memrange_absolute = -1 | |
632 | }; | |
633 | ||
c5aa993b JM |
634 | struct memrange |
635 | { | |
f50e79a4 JB |
636 | int type; /* memrange_absolute for absolute memory range, |
637 | else basereg number */ | |
c906108c SS |
638 | bfd_signed_vma start; |
639 | bfd_signed_vma end; | |
640 | }; | |
641 | ||
c5aa993b JM |
642 | struct collection_list |
643 | { | |
549678da | 644 | unsigned char regs_mask[32]; /* room for up to 256 regs */ |
c5aa993b JM |
645 | long listsize; |
646 | long next_memrange; | |
647 | struct memrange *list; | |
648 | long aexpr_listsize; /* size of array pointed to by expr_list elt */ | |
649 | long next_aexpr_elt; | |
650 | struct agent_expr **aexpr_list; | |
651 | ||
652 | } | |
653 | tracepoint_list, stepping_list; | |
c906108c SS |
654 | |
655 | /* MEMRANGE functions: */ | |
656 | ||
a14ed312 | 657 | static int memrange_cmp (const void *, const void *); |
c906108c SS |
658 | |
659 | /* compare memranges for qsort */ | |
660 | static int | |
fba45db2 | 661 | memrange_cmp (const void *va, const void *vb) |
c906108c SS |
662 | { |
663 | const struct memrange *a = va, *b = vb; | |
664 | ||
665 | if (a->type < b->type) | |
666 | return -1; | |
667 | if (a->type > b->type) | |
c5aa993b | 668 | return 1; |
f50e79a4 | 669 | if (a->type == memrange_absolute) |
c906108c | 670 | { |
c5aa993b JM |
671 | if ((bfd_vma) a->start < (bfd_vma) b->start) |
672 | return -1; | |
673 | if ((bfd_vma) a->start > (bfd_vma) b->start) | |
674 | return 1; | |
c906108c SS |
675 | } |
676 | else | |
677 | { | |
c5aa993b | 678 | if (a->start < b->start) |
c906108c | 679 | return -1; |
c5aa993b JM |
680 | if (a->start > b->start) |
681 | return 1; | |
c906108c SS |
682 | } |
683 | return 0; | |
684 | } | |
685 | ||
d183932d | 686 | /* Sort the memrange list using qsort, and merge adjacent memranges. */ |
c906108c | 687 | static void |
fba45db2 | 688 | memrange_sortmerge (struct collection_list *memranges) |
c906108c SS |
689 | { |
690 | int a, b; | |
691 | ||
c5aa993b | 692 | qsort (memranges->list, memranges->next_memrange, |
c906108c SS |
693 | sizeof (struct memrange), memrange_cmp); |
694 | if (memranges->next_memrange > 0) | |
695 | { | |
696 | for (a = 0, b = 1; b < memranges->next_memrange; b++) | |
697 | { | |
698 | if (memranges->list[a].type == memranges->list[b].type && | |
c5aa993b | 699 | memranges->list[b].start - memranges->list[a].end <= |
0c92afe8 | 700 | MAX_REGISTER_SIZE) |
c906108c SS |
701 | { |
702 | /* memrange b starts before memrange a ends; merge them. */ | |
703 | if (memranges->list[b].end > memranges->list[a].end) | |
704 | memranges->list[a].end = memranges->list[b].end; | |
705 | continue; /* next b, same a */ | |
706 | } | |
707 | a++; /* next a */ | |
708 | if (a != b) | |
c5aa993b | 709 | memcpy (&memranges->list[a], &memranges->list[b], |
c906108c SS |
710 | sizeof (struct memrange)); |
711 | } | |
712 | memranges->next_memrange = a + 1; | |
713 | } | |
714 | } | |
715 | ||
d183932d | 716 | /* Add a register to a collection list. */ |
392a587b | 717 | static void |
fba45db2 | 718 | add_register (struct collection_list *collection, unsigned int regno) |
c906108c SS |
719 | { |
720 | if (info_verbose) | |
721 | printf_filtered ("collect register %d\n", regno); | |
27e06d3e | 722 | if (regno >= (8 * sizeof (collection->regs_mask))) |
8a3fe4f8 | 723 | error (_("Internal: register number %d too large for tracepoint"), |
c906108c | 724 | regno); |
c5aa993b | 725 | collection->regs_mask[regno / 8] |= 1 << (regno % 8); |
c906108c SS |
726 | } |
727 | ||
728 | /* Add a memrange to a collection list */ | |
729 | static void | |
d183932d MS |
730 | add_memrange (struct collection_list *memranges, |
731 | int type, bfd_signed_vma base, | |
fba45db2 | 732 | unsigned long len) |
c906108c SS |
733 | { |
734 | if (info_verbose) | |
104c1213 JM |
735 | { |
736 | printf_filtered ("(%d,", type); | |
737 | printf_vma (base); | |
738 | printf_filtered (",%ld)\n", len); | |
739 | } | |
740 | ||
f50e79a4 | 741 | /* type: memrange_absolute == memory, other n == basereg */ |
c5aa993b | 742 | memranges->list[memranges->next_memrange].type = type; |
d183932d | 743 | /* base: addr if memory, offset if reg relative. */ |
c906108c SS |
744 | memranges->list[memranges->next_memrange].start = base; |
745 | /* len: we actually save end (base + len) for convenience */ | |
c5aa993b | 746 | memranges->list[memranges->next_memrange].end = base + len; |
c906108c SS |
747 | memranges->next_memrange++; |
748 | if (memranges->next_memrange >= memranges->listsize) | |
749 | { | |
750 | memranges->listsize *= 2; | |
c5aa993b | 751 | memranges->list = xrealloc (memranges->list, |
c906108c SS |
752 | memranges->listsize); |
753 | } | |
754 | ||
f50e79a4 | 755 | if (type != memrange_absolute) /* Better collect the base register! */ |
c906108c SS |
756 | add_register (memranges, type); |
757 | } | |
758 | ||
d183932d | 759 | /* Add a symbol to a collection list. */ |
c906108c | 760 | static void |
d183932d MS |
761 | collect_symbol (struct collection_list *collect, |
762 | struct symbol *sym, | |
fba45db2 | 763 | long frame_regno, long frame_offset) |
c906108c | 764 | { |
c5aa993b | 765 | unsigned long len; |
104c1213 | 766 | unsigned int reg; |
c906108c SS |
767 | bfd_signed_vma offset; |
768 | ||
c5aa993b JM |
769 | len = TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym))); |
770 | switch (SYMBOL_CLASS (sym)) | |
771 | { | |
772 | default: | |
773 | printf_filtered ("%s: don't know symbol class %d\n", | |
3567439c | 774 | SYMBOL_PRINT_NAME (sym), |
d183932d | 775 | SYMBOL_CLASS (sym)); |
c5aa993b JM |
776 | break; |
777 | case LOC_CONST: | |
104c1213 | 778 | printf_filtered ("constant %s (value %ld) will not be collected.\n", |
3567439c | 779 | SYMBOL_PRINT_NAME (sym), SYMBOL_VALUE (sym)); |
c5aa993b JM |
780 | break; |
781 | case LOC_STATIC: | |
782 | offset = SYMBOL_VALUE_ADDRESS (sym); | |
783 | if (info_verbose) | |
104c1213 JM |
784 | { |
785 | char tmp[40]; | |
786 | ||
787 | sprintf_vma (tmp, offset); | |
788 | printf_filtered ("LOC_STATIC %s: collect %ld bytes at %s.\n", | |
3567439c | 789 | SYMBOL_PRINT_NAME (sym), len, |
d183932d | 790 | tmp /* address */); |
104c1213 | 791 | } |
f50e79a4 | 792 | add_memrange (collect, memrange_absolute, offset, len); |
c5aa993b JM |
793 | break; |
794 | case LOC_REGISTER: | |
c5aa993b JM |
795 | reg = SYMBOL_VALUE (sym); |
796 | if (info_verbose) | |
d183932d | 797 | printf_filtered ("LOC_REG[parm] %s: ", |
3567439c | 798 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b | 799 | add_register (collect, reg); |
d183932d MS |
800 | /* Check for doubles stored in two registers. */ |
801 | /* FIXME: how about larger types stored in 3 or more regs? */ | |
c5aa993b | 802 | if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_FLT && |
3acba339 | 803 | len > register_size (current_gdbarch, reg)) |
c5aa993b JM |
804 | add_register (collect, reg + 1); |
805 | break; | |
806 | case LOC_REF_ARG: | |
807 | printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n"); | |
808 | printf_filtered (" (will not collect %s)\n", | |
3567439c | 809 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b JM |
810 | break; |
811 | case LOC_ARG: | |
812 | reg = frame_regno; | |
813 | offset = frame_offset + SYMBOL_VALUE (sym); | |
814 | if (info_verbose) | |
815 | { | |
104c1213 | 816 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", |
3567439c | 817 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
818 | printf_vma (offset); |
819 | printf_filtered (" from frame ptr reg %d\n", reg); | |
c5aa993b JM |
820 | } |
821 | add_memrange (collect, reg, offset, len); | |
822 | break; | |
823 | case LOC_REGPARM_ADDR: | |
824 | reg = SYMBOL_VALUE (sym); | |
825 | offset = 0; | |
826 | if (info_verbose) | |
827 | { | |
104c1213 | 828 | printf_filtered ("LOC_REGPARM_ADDR %s: Collect %ld bytes at offset ", |
3567439c | 829 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
830 | printf_vma (offset); |
831 | printf_filtered (" from reg %d\n", reg); | |
c5aa993b JM |
832 | } |
833 | add_memrange (collect, reg, offset, len); | |
834 | break; | |
835 | case LOC_LOCAL: | |
c5aa993b JM |
836 | reg = frame_regno; |
837 | offset = frame_offset + SYMBOL_VALUE (sym); | |
838 | if (info_verbose) | |
839 | { | |
104c1213 | 840 | printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ", |
3567439c | 841 | SYMBOL_PRINT_NAME (sym), len); |
104c1213 JM |
842 | printf_vma (offset); |
843 | printf_filtered (" from frame ptr reg %d\n", reg); | |
c5aa993b JM |
844 | } |
845 | add_memrange (collect, reg, offset, len); | |
846 | break; | |
c5aa993b | 847 | case LOC_UNRESOLVED: |
d183932d | 848 | printf_filtered ("Don't know LOC_UNRESOLVED %s\n", |
3567439c | 849 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b JM |
850 | break; |
851 | case LOC_OPTIMIZED_OUT: | |
8e1a459b | 852 | printf_filtered ("%s has been optimized out of existence.\n", |
3567439c | 853 | SYMBOL_PRINT_NAME (sym)); |
c5aa993b JM |
854 | break; |
855 | } | |
c906108c SS |
856 | } |
857 | ||
858 | /* Add all locals (or args) symbols to collection list */ | |
859 | static void | |
fba45db2 KB |
860 | add_local_symbols (struct collection_list *collect, CORE_ADDR pc, |
861 | long frame_regno, long frame_offset, int type) | |
c906108c SS |
862 | { |
863 | struct symbol *sym; | |
c5aa993b | 864 | struct block *block; |
de4f826b DC |
865 | struct dict_iterator iter; |
866 | int count = 0; | |
c906108c SS |
867 | |
868 | block = block_for_pc (pc); | |
869 | while (block != 0) | |
870 | { | |
c5aa993b | 871 | QUIT; /* allow user to bail out with ^C */ |
de4f826b | 872 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
c906108c | 873 | { |
2a2d4dc3 AS |
874 | if (SYMBOL_IS_ARGUMENT (sym) |
875 | ? type == 'A' /* collecting Arguments */ | |
876 | : type == 'L') /* collecting Locals */ | |
c5aa993b | 877 | { |
2a2d4dc3 AS |
878 | count++; |
879 | collect_symbol (collect, sym, frame_regno, | |
880 | frame_offset); | |
c5aa993b | 881 | } |
c906108c SS |
882 | } |
883 | if (BLOCK_FUNCTION (block)) | |
884 | break; | |
885 | else | |
886 | block = BLOCK_SUPERBLOCK (block); | |
887 | } | |
888 | if (count == 0) | |
8a3fe4f8 | 889 | warning (_("No %s found in scope."), |
d183932d | 890 | type == 'L' ? "locals" : "args"); |
c906108c SS |
891 | } |
892 | ||
893 | /* worker function */ | |
894 | static void | |
fba45db2 | 895 | clear_collection_list (struct collection_list *list) |
c906108c SS |
896 | { |
897 | int ndx; | |
898 | ||
899 | list->next_memrange = 0; | |
900 | for (ndx = 0; ndx < list->next_aexpr_elt; ndx++) | |
901 | { | |
c5aa993b | 902 | free_agent_expr (list->aexpr_list[ndx]); |
c906108c SS |
903 | list->aexpr_list[ndx] = NULL; |
904 | } | |
905 | list->next_aexpr_elt = 0; | |
906 | memset (list->regs_mask, 0, sizeof (list->regs_mask)); | |
907 | } | |
908 | ||
909 | /* reduce a collection list to string form (for gdb protocol) */ | |
910 | static char ** | |
fba45db2 | 911 | stringify_collection_list (struct collection_list *list, char *string) |
c906108c SS |
912 | { |
913 | char temp_buf[2048]; | |
104c1213 | 914 | char tmp2[40]; |
c906108c SS |
915 | int count; |
916 | int ndx = 0; | |
917 | char *(*str_list)[]; | |
918 | char *end; | |
c5aa993b | 919 | long i; |
c906108c SS |
920 | |
921 | count = 1 + list->next_memrange + list->next_aexpr_elt + 1; | |
c5aa993b | 922 | str_list = (char *(*)[]) xmalloc (count * sizeof (char *)); |
c906108c SS |
923 | |
924 | for (i = sizeof (list->regs_mask) - 1; i > 0; i--) | |
925 | if (list->regs_mask[i] != 0) /* skip leading zeroes in regs_mask */ | |
926 | break; | |
927 | if (list->regs_mask[i] != 0) /* prepare to send regs_mask to the stub */ | |
928 | { | |
929 | if (info_verbose) | |
930 | printf_filtered ("\nCollecting registers (mask): 0x"); | |
931 | end = temp_buf; | |
c5aa993b | 932 | *end++ = 'R'; |
c906108c SS |
933 | for (; i >= 0; i--) |
934 | { | |
c5aa993b | 935 | QUIT; /* allow user to bail out with ^C */ |
c906108c SS |
936 | if (info_verbose) |
937 | printf_filtered ("%02X", list->regs_mask[i]); | |
c5aa993b | 938 | sprintf (end, "%02X", list->regs_mask[i]); |
c906108c SS |
939 | end += 2; |
940 | } | |
c5aa993b | 941 | (*str_list)[ndx] = savestring (temp_buf, end - temp_buf); |
c906108c SS |
942 | ndx++; |
943 | } | |
944 | if (info_verbose) | |
945 | printf_filtered ("\n"); | |
946 | if (list->next_memrange > 0 && info_verbose) | |
947 | printf_filtered ("Collecting memranges: \n"); | |
948 | for (i = 0, count = 0, end = temp_buf; i < list->next_memrange; i++) | |
949 | { | |
950 | QUIT; /* allow user to bail out with ^C */ | |
104c1213 | 951 | sprintf_vma (tmp2, list->list[i].start); |
c906108c | 952 | if (info_verbose) |
104c1213 JM |
953 | { |
954 | printf_filtered ("(%d, %s, %ld)\n", | |
955 | list->list[i].type, | |
956 | tmp2, | |
957 | (long) (list->list[i].end - list->list[i].start)); | |
958 | } | |
c906108c SS |
959 | if (count + 27 > MAX_AGENT_EXPR_LEN) |
960 | { | |
c5aa993b | 961 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
962 | ndx++; |
963 | count = 0; | |
964 | end = temp_buf; | |
965 | } | |
104c1213 | 966 | |
d1948716 JB |
967 | { |
968 | bfd_signed_vma length = list->list[i].end - list->list[i].start; | |
969 | ||
970 | /* The "%X" conversion specifier expects an unsigned argument, | |
f50e79a4 JB |
971 | so passing -1 (memrange_absolute) to it directly gives you |
972 | "FFFFFFFF" (or more, depending on sizeof (unsigned)). | |
973 | Special-case it. */ | |
974 | if (list->list[i].type == memrange_absolute) | |
d1948716 JB |
975 | sprintf (end, "M-1,%s,%lX", tmp2, (long) length); |
976 | else | |
977 | sprintf (end, "M%X,%s,%lX", list->list[i].type, tmp2, (long) length); | |
978 | } | |
104c1213 | 979 | |
c906108c | 980 | count += strlen (end); |
3ffbc0a5 | 981 | end = temp_buf + count; |
c906108c SS |
982 | } |
983 | ||
984 | for (i = 0; i < list->next_aexpr_elt; i++) | |
985 | { | |
986 | QUIT; /* allow user to bail out with ^C */ | |
987 | if ((count + 10 + 2 * list->aexpr_list[i]->len) > MAX_AGENT_EXPR_LEN) | |
988 | { | |
c5aa993b | 989 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
990 | ndx++; |
991 | count = 0; | |
992 | end = temp_buf; | |
993 | } | |
994 | sprintf (end, "X%08X,", list->aexpr_list[i]->len); | |
995 | end += 10; /* 'X' + 8 hex digits + ',' */ | |
996 | count += 10; | |
997 | ||
d183932d MS |
998 | end = mem2hex (list->aexpr_list[i]->buf, |
999 | end, list->aexpr_list[i]->len); | |
c906108c SS |
1000 | count += 2 * list->aexpr_list[i]->len; |
1001 | } | |
1002 | ||
1003 | if (count != 0) | |
1004 | { | |
c5aa993b | 1005 | (*str_list)[ndx] = savestring (temp_buf, count); |
c906108c SS |
1006 | ndx++; |
1007 | count = 0; | |
1008 | end = temp_buf; | |
1009 | } | |
1010 | (*str_list)[ndx] = NULL; | |
1011 | ||
1012 | if (ndx == 0) | |
27e06d3e | 1013 | { |
6c761d9c | 1014 | xfree (str_list); |
27e06d3e MS |
1015 | return NULL; |
1016 | } | |
c906108c SS |
1017 | else |
1018 | return *str_list; | |
1019 | } | |
1020 | ||
392a587b | 1021 | static void |
fba45db2 | 1022 | free_actions_list_cleanup_wrapper (void *al) |
392a587b JM |
1023 | { |
1024 | free_actions_list (al); | |
1025 | } | |
1026 | ||
1027 | static void | |
fba45db2 | 1028 | free_actions_list (char **actions_list) |
c906108c SS |
1029 | { |
1030 | int ndx; | |
1031 | ||
1032 | if (actions_list == 0) | |
1033 | return; | |
1034 | ||
1035 | for (ndx = 0; actions_list[ndx]; ndx++) | |
b8c9b27d | 1036 | xfree (actions_list[ndx]); |
c906108c | 1037 | |
b8c9b27d | 1038 | xfree (actions_list); |
c906108c SS |
1039 | } |
1040 | ||
d183932d | 1041 | /* Render all actions into gdb protocol. */ |
c906108c | 1042 | static void |
1042e4c0 | 1043 | encode_actions (struct breakpoint *t, char ***tdp_actions, |
fba45db2 | 1044 | char ***stepping_actions) |
c906108c | 1045 | { |
c5aa993b JM |
1046 | static char tdp_buff[2048], step_buff[2048]; |
1047 | char *action_exp; | |
1048 | struct expression *exp = NULL; | |
c906108c | 1049 | struct action_line *action; |
104c1213 | 1050 | int i; |
f976f6d4 | 1051 | struct value *tempval; |
c5aa993b | 1052 | struct collection_list *collect; |
c906108c SS |
1053 | struct cmd_list_element *cmd; |
1054 | struct agent_expr *aexpr; | |
39d4ef09 AC |
1055 | int frame_reg; |
1056 | LONGEST frame_offset; | |
c906108c SS |
1057 | |
1058 | ||
1059 | clear_collection_list (&tracepoint_list); | |
1060 | clear_collection_list (&stepping_list); | |
1061 | collect = &tracepoint_list; | |
1062 | ||
1063 | *tdp_actions = NULL; | |
1064 | *stepping_actions = NULL; | |
1065 | ||
c7bb205c | 1066 | gdbarch_virtual_frame_pointer (current_gdbarch, |
1042e4c0 | 1067 | t->loc->address, &frame_reg, &frame_offset); |
c906108c SS |
1068 | |
1069 | for (action = t->actions; action; action = action->next) | |
1070 | { | |
1071 | QUIT; /* allow user to bail out with ^C */ | |
1072 | action_exp = action->action; | |
104c1213 | 1073 | while (isspace ((int) *action_exp)) |
c906108c SS |
1074 | action_exp++; |
1075 | ||
1076 | if (*action_exp == '#') /* comment line */ | |
1077 | return; | |
1078 | ||
1079 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); | |
1080 | if (cmd == 0) | |
8a3fe4f8 | 1081 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 1082 | |
bbaca940 | 1083 | if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c | 1084 | { |
c5aa993b JM |
1085 | do |
1086 | { /* repeat over a comma-separated list */ | |
1087 | QUIT; /* allow user to bail out with ^C */ | |
104c1213 | 1088 | while (isspace ((int) *action_exp)) |
c5aa993b | 1089 | action_exp++; |
c906108c | 1090 | |
c5aa993b JM |
1091 | if (0 == strncasecmp ("$reg", action_exp, 4)) |
1092 | { | |
f57d151a | 1093 | for (i = 0; i < gdbarch_num_regs (current_gdbarch); i++) |
c5aa993b JM |
1094 | add_register (collect, i); |
1095 | action_exp = strchr (action_exp, ','); /* more? */ | |
1096 | } | |
1097 | else if (0 == strncasecmp ("$arg", action_exp, 4)) | |
1098 | { | |
1099 | add_local_symbols (collect, | |
1042e4c0 | 1100 | t->loc->address, |
c5aa993b JM |
1101 | frame_reg, |
1102 | frame_offset, | |
1103 | 'A'); | |
1104 | action_exp = strchr (action_exp, ','); /* more? */ | |
1105 | } | |
1106 | else if (0 == strncasecmp ("$loc", action_exp, 4)) | |
1107 | { | |
1108 | add_local_symbols (collect, | |
1042e4c0 | 1109 | t->loc->address, |
c5aa993b JM |
1110 | frame_reg, |
1111 | frame_offset, | |
1112 | 'L'); | |
1113 | action_exp = strchr (action_exp, ','); /* more? */ | |
1114 | } | |
1115 | else | |
1116 | { | |
1117 | unsigned long addr, len; | |
1118 | struct cleanup *old_chain = NULL; | |
1119 | struct cleanup *old_chain1 = NULL; | |
1120 | struct agent_reqs areqs; | |
1121 | ||
75ac9d7b | 1122 | exp = parse_exp_1 (&action_exp, |
1042e4c0 | 1123 | block_for_pc (t->loc->address), 1); |
74b7792f | 1124 | old_chain = make_cleanup (free_current_contents, &exp); |
c906108c | 1125 | |
c5aa993b JM |
1126 | switch (exp->elts[0].opcode) |
1127 | { | |
1128 | case OP_REGISTER: | |
67f3407f DJ |
1129 | { |
1130 | const char *name = &exp->elts[2].string; | |
1131 | ||
029a67e4 UW |
1132 | i = user_reg_map_name_to_regnum (current_gdbarch, |
1133 | name, strlen (name)); | |
67f3407f DJ |
1134 | if (i == -1) |
1135 | internal_error (__FILE__, __LINE__, | |
1136 | _("Register $%s not available"), | |
1137 | name); | |
1138 | if (info_verbose) | |
1139 | printf_filtered ("OP_REGISTER: "); | |
1140 | add_register (collect, i); | |
1141 | break; | |
1142 | } | |
c5aa993b JM |
1143 | |
1144 | case UNOP_MEMVAL: | |
1145 | /* safe because we know it's a simple expression */ | |
1146 | tempval = evaluate_expression (exp); | |
df407dfe | 1147 | addr = VALUE_ADDRESS (tempval) + value_offset (tempval); |
c5aa993b | 1148 | len = TYPE_LENGTH (check_typedef (exp->elts[1].type)); |
f50e79a4 | 1149 | add_memrange (collect, memrange_absolute, addr, len); |
c5aa993b JM |
1150 | break; |
1151 | ||
1152 | case OP_VAR_VALUE: | |
1153 | collect_symbol (collect, | |
1154 | exp->elts[2].symbol, | |
1155 | frame_reg, | |
1156 | frame_offset); | |
1157 | break; | |
1158 | ||
1159 | default: /* full-fledged expression */ | |
1042e4c0 | 1160 | aexpr = gen_trace_for_expr (t->loc->address, exp); |
c5aa993b | 1161 | |
f23d52e0 | 1162 | old_chain1 = make_cleanup_free_agent_expr (aexpr); |
c5aa993b JM |
1163 | |
1164 | ax_reqs (aexpr, &areqs); | |
1165 | if (areqs.flaw != agent_flaw_none) | |
8a3fe4f8 | 1166 | error (_("malformed expression")); |
c5aa993b JM |
1167 | |
1168 | if (areqs.min_height < 0) | |
8a3fe4f8 | 1169 | error (_("gdb: Internal error: expression has min height < 0")); |
c5aa993b | 1170 | if (areqs.max_height > 20) |
8a3fe4f8 | 1171 | error (_("expression too complicated, try simplifying")); |
c5aa993b JM |
1172 | |
1173 | discard_cleanups (old_chain1); | |
1174 | add_aexpr (collect, aexpr); | |
1175 | ||
1176 | /* take care of the registers */ | |
1177 | if (areqs.reg_mask_len > 0) | |
c906108c | 1178 | { |
c5aa993b JM |
1179 | int ndx1; |
1180 | int ndx2; | |
1181 | ||
1182 | for (ndx1 = 0; ndx1 < areqs.reg_mask_len; ndx1++) | |
c906108c | 1183 | { |
c5aa993b JM |
1184 | QUIT; /* allow user to bail out with ^C */ |
1185 | if (areqs.reg_mask[ndx1] != 0) | |
1186 | { | |
1187 | /* assume chars have 8 bits */ | |
1188 | for (ndx2 = 0; ndx2 < 8; ndx2++) | |
1189 | if (areqs.reg_mask[ndx1] & (1 << ndx2)) | |
1190 | /* it's used -- record it */ | |
d183932d MS |
1191 | add_register (collect, |
1192 | ndx1 * 8 + ndx2); | |
c5aa993b | 1193 | } |
c906108c SS |
1194 | } |
1195 | } | |
c5aa993b JM |
1196 | break; |
1197 | } /* switch */ | |
1198 | do_cleanups (old_chain); | |
1199 | } /* do */ | |
1200 | } | |
1201 | while (action_exp && *action_exp++ == ','); | |
1202 | } /* if */ | |
bbaca940 | 1203 | else if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
c906108c SS |
1204 | { |
1205 | collect = &stepping_list; | |
1206 | } | |
bbaca940 | 1207 | else if (cmd_cfunc_eq (cmd, end_actions_pseudocommand)) |
c906108c SS |
1208 | { |
1209 | if (collect == &stepping_list) /* end stepping actions */ | |
1210 | collect = &tracepoint_list; | |
1211 | else | |
c5aa993b | 1212 | break; /* end tracepoint actions */ |
c906108c | 1213 | } |
c5aa993b JM |
1214 | } /* for */ |
1215 | memrange_sortmerge (&tracepoint_list); | |
1216 | memrange_sortmerge (&stepping_list); | |
c906108c | 1217 | |
d183932d MS |
1218 | *tdp_actions = stringify_collection_list (&tracepoint_list, |
1219 | tdp_buff); | |
1220 | *stepping_actions = stringify_collection_list (&stepping_list, | |
1221 | step_buff); | |
c906108c SS |
1222 | } |
1223 | ||
1224 | static void | |
fba45db2 | 1225 | add_aexpr (struct collection_list *collect, struct agent_expr *aexpr) |
c906108c SS |
1226 | { |
1227 | if (collect->next_aexpr_elt >= collect->aexpr_listsize) | |
1228 | { | |
1229 | collect->aexpr_list = | |
1230 | xrealloc (collect->aexpr_list, | |
c5aa993b | 1231 | 2 * collect->aexpr_listsize * sizeof (struct agent_expr *)); |
c906108c SS |
1232 | collect->aexpr_listsize *= 2; |
1233 | } | |
1234 | collect->aexpr_list[collect->next_aexpr_elt] = aexpr; | |
1235 | collect->next_aexpr_elt++; | |
1236 | } | |
1237 | ||
6d820c5c DJ |
1238 | static char *target_buf; |
1239 | static long target_buf_size; | |
c906108c SS |
1240 | |
1241 | /* Set "transparent" memory ranges | |
1242 | ||
1243 | Allow trace mechanism to treat text-like sections | |
1244 | (and perhaps all read-only sections) transparently, | |
1245 | i.e. don't reject memory requests from these address ranges | |
1246 | just because they haven't been collected. */ | |
1247 | ||
1248 | static void | |
1249 | remote_set_transparent_ranges (void) | |
1250 | { | |
c906108c SS |
1251 | asection *s; |
1252 | bfd_size_type size; | |
1253 | bfd_vma lma; | |
1254 | int anysecs = 0; | |
1255 | ||
1256 | if (!exec_bfd) | |
d183932d | 1257 | return; /* No information to give. */ |
c906108c SS |
1258 | |
1259 | strcpy (target_buf, "QTro"); | |
1260 | for (s = exec_bfd->sections; s; s = s->next) | |
1261 | { | |
104c1213 | 1262 | char tmp1[40], tmp2[40]; |
c906108c | 1263 | |
c5aa993b JM |
1264 | if ((s->flags & SEC_LOAD) == 0 || |
1265 | /* (s->flags & SEC_CODE) == 0 || */ | |
c906108c SS |
1266 | (s->flags & SEC_READONLY) == 0) |
1267 | continue; | |
1268 | ||
1269 | anysecs = 1; | |
c5aa993b | 1270 | lma = s->lma; |
2c500098 | 1271 | size = bfd_get_section_size (s); |
104c1213 JM |
1272 | sprintf_vma (tmp1, lma); |
1273 | sprintf_vma (tmp2, lma + size); | |
1274 | sprintf (target_buf + strlen (target_buf), | |
1275 | ":%s,%s", tmp1, tmp2); | |
c906108c SS |
1276 | } |
1277 | if (anysecs) | |
1278 | { | |
1279 | putpkt (target_buf); | |
6d820c5c | 1280 | getpkt (&target_buf, &target_buf_size, 0); |
c906108c SS |
1281 | } |
1282 | } | |
1283 | ||
1284 | /* tstart command: | |
c5aa993b | 1285 | |
c906108c SS |
1286 | Tell target to clear any previous trace experiment. |
1287 | Walk the list of tracepoints, and send them (and their actions) | |
1288 | to the target. If no errors, | |
1289 | Tell target to start a new trace experiment. */ | |
1290 | ||
1042e4c0 SS |
1291 | void download_tracepoint (struct breakpoint *t); |
1292 | ||
c906108c | 1293 | static void |
fba45db2 | 1294 | trace_start_command (char *args, int from_tty) |
d183932d | 1295 | { |
1042e4c0 SS |
1296 | VEC(breakpoint_p) *tp_vec = NULL; |
1297 | int ix; | |
1298 | struct breakpoint *t; | |
c906108c | 1299 | |
d183932d | 1300 | dont_repeat (); /* Like "run", dangerous to repeat accidentally. */ |
c5aa993b | 1301 | |
c906108c SS |
1302 | if (target_is_remote ()) |
1303 | { | |
1304 | putpkt ("QTinit"); | |
6d820c5c | 1305 | remote_get_noisy_reply (&target_buf, &target_buf_size); |
c906108c | 1306 | if (strcmp (target_buf, "OK")) |
8a3fe4f8 | 1307 | error (_("Target does not support this command.")); |
c906108c | 1308 | |
1042e4c0 SS |
1309 | tp_vec = all_tracepoints (); |
1310 | for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++) | |
1311 | { | |
1312 | download_tracepoint (t); | |
1313 | } | |
1314 | VEC_free (breakpoint_p, tp_vec); | |
c5aa993b | 1315 | |
d183932d | 1316 | /* Tell target to treat text-like sections as transparent. */ |
c906108c | 1317 | remote_set_transparent_ranges (); |
d183932d | 1318 | /* Now insert traps and begin collecting data. */ |
c906108c | 1319 | putpkt ("QTStart"); |
6d820c5c | 1320 | remote_get_noisy_reply (&target_buf, &target_buf_size); |
c906108c | 1321 | if (strcmp (target_buf, "OK")) |
8a3fe4f8 | 1322 | error (_("Bogus reply from target: %s"), target_buf); |
d183932d | 1323 | set_traceframe_num (-1); /* All old traceframes invalidated. */ |
c906108c | 1324 | set_tracepoint_num (-1); |
fb14de7b | 1325 | set_traceframe_context (NULL); |
c906108c | 1326 | trace_running_p = 1; |
9a4105ab AC |
1327 | if (deprecated_trace_start_stop_hook) |
1328 | deprecated_trace_start_stop_hook (1, from_tty); | |
c5aa993b | 1329 | |
c906108c SS |
1330 | } |
1331 | else | |
8a3fe4f8 | 1332 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1333 | } |
1334 | ||
1042e4c0 SS |
1335 | /* Send the definition of a single tracepoint to the target. */ |
1336 | ||
1337 | void | |
1338 | download_tracepoint (struct breakpoint *t) | |
1339 | { | |
1340 | char tmp[40]; | |
1341 | char buf[2048]; | |
1342 | char **tdp_actions; | |
1343 | char **stepping_actions; | |
1344 | int ndx; | |
1345 | struct cleanup *old_chain = NULL; | |
1346 | ||
1347 | sprintf_vma (tmp, (t->loc ? t->loc->address : 0)); | |
1348 | sprintf (buf, "QTDP:%x:%s:%c:%lx:%x", t->number, | |
1349 | tmp, /* address */ | |
1350 | (t->enable_state == bp_enabled ? 'E' : 'D'), | |
1351 | t->step_count, t->pass_count); | |
1352 | ||
1353 | if (t->actions) | |
1354 | strcat (buf, "-"); | |
1355 | putpkt (buf); | |
1356 | remote_get_noisy_reply (&target_buf, &target_buf_size); | |
1357 | if (strcmp (target_buf, "OK")) | |
1358 | error (_("Target does not support tracepoints.")); | |
1359 | ||
1360 | if (!t->actions) | |
1361 | return; | |
1362 | ||
1363 | encode_actions (t, &tdp_actions, &stepping_actions); | |
1364 | old_chain = make_cleanup (free_actions_list_cleanup_wrapper, | |
1365 | tdp_actions); | |
1366 | (void) make_cleanup (free_actions_list_cleanup_wrapper, stepping_actions); | |
1367 | ||
1368 | /* do_single_steps (t); */ | |
1369 | if (tdp_actions) | |
1370 | { | |
1371 | for (ndx = 0; tdp_actions[ndx]; ndx++) | |
1372 | { | |
1373 | QUIT; /* allow user to bail out with ^C */ | |
1374 | sprintf (buf, "QTDP:-%x:%s:%s%c", | |
1375 | t->number, tmp, /* address */ | |
1376 | tdp_actions[ndx], | |
1377 | ((tdp_actions[ndx + 1] || stepping_actions) | |
1378 | ? '-' : 0)); | |
1379 | putpkt (buf); | |
1380 | remote_get_noisy_reply (&target_buf, | |
1381 | &target_buf_size); | |
1382 | if (strcmp (target_buf, "OK")) | |
1383 | error (_("Error on target while setting tracepoints.")); | |
1384 | } | |
1385 | } | |
1386 | if (stepping_actions) | |
1387 | { | |
1388 | for (ndx = 0; stepping_actions[ndx]; ndx++) | |
1389 | { | |
1390 | QUIT; /* allow user to bail out with ^C */ | |
1391 | sprintf (buf, "QTDP:-%x:%s:%s%s%s", | |
1392 | t->number, tmp, /* address */ | |
1393 | ((ndx == 0) ? "S" : ""), | |
1394 | stepping_actions[ndx], | |
1395 | (stepping_actions[ndx + 1] ? "-" : "")); | |
1396 | putpkt (buf); | |
1397 | remote_get_noisy_reply (&target_buf, | |
1398 | &target_buf_size); | |
1399 | if (strcmp (target_buf, "OK")) | |
1400 | error (_("Error on target while setting tracepoints.")); | |
1401 | } | |
1402 | } | |
1403 | do_cleanups (old_chain); | |
1404 | } | |
1405 | ||
c906108c SS |
1406 | /* tstop command */ |
1407 | static void | |
fba45db2 | 1408 | trace_stop_command (char *args, int from_tty) |
d183932d | 1409 | { |
c906108c SS |
1410 | if (target_is_remote ()) |
1411 | { | |
1412 | putpkt ("QTStop"); | |
6d820c5c | 1413 | remote_get_noisy_reply (&target_buf, &target_buf_size); |
c906108c | 1414 | if (strcmp (target_buf, "OK")) |
8a3fe4f8 | 1415 | error (_("Bogus reply from target: %s"), target_buf); |
c906108c | 1416 | trace_running_p = 0; |
9a4105ab AC |
1417 | if (deprecated_trace_start_stop_hook) |
1418 | deprecated_trace_start_stop_hook (0, from_tty); | |
c906108c SS |
1419 | } |
1420 | else | |
8a3fe4f8 | 1421 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1422 | } |
1423 | ||
1424 | unsigned long trace_running_p; | |
1425 | ||
1426 | /* tstatus command */ | |
1427 | static void | |
fba45db2 | 1428 | trace_status_command (char *args, int from_tty) |
d183932d | 1429 | { |
c906108c SS |
1430 | if (target_is_remote ()) |
1431 | { | |
1432 | putpkt ("qTStatus"); | |
6d820c5c | 1433 | remote_get_noisy_reply (&target_buf, &target_buf_size); |
c906108c SS |
1434 | |
1435 | if (target_buf[0] != 'T' || | |
1436 | (target_buf[1] != '0' && target_buf[1] != '1')) | |
8a3fe4f8 | 1437 | error (_("Bogus reply from target: %s"), target_buf); |
c906108c SS |
1438 | |
1439 | /* exported for use by the GUI */ | |
1440 | trace_running_p = (target_buf[1] == '1'); | |
1441 | } | |
1442 | else | |
8a3fe4f8 | 1443 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1444 | } |
1445 | ||
d183932d | 1446 | /* Worker function for the various flavors of the tfind command. */ |
c906108c | 1447 | static void |
6d820c5c DJ |
1448 | finish_tfind_command (char **msg, |
1449 | long *sizeof_msg, | |
c2d11a7d | 1450 | int from_tty) |
c906108c SS |
1451 | { |
1452 | int target_frameno = -1, target_tracept = -1; | |
fb14de7b | 1453 | struct frame_id old_frame_id; |
c906108c SS |
1454 | char *reply; |
1455 | ||
fb14de7b | 1456 | old_frame_id = get_frame_id (get_current_frame ()); |
c906108c | 1457 | |
6d820c5c | 1458 | putpkt (*msg); |
c2d11a7d | 1459 | reply = remote_get_noisy_reply (msg, sizeof_msg); |
c906108c SS |
1460 | |
1461 | while (reply && *reply) | |
c5aa993b JM |
1462 | switch (*reply) |
1463 | { | |
1464 | case 'F': | |
1465 | if ((target_frameno = (int) strtol (++reply, &reply, 16)) == -1) | |
1466 | { | |
1467 | /* A request for a non-existant trace frame has failed. | |
1468 | Our response will be different, depending on FROM_TTY: | |
1469 | ||
1470 | If FROM_TTY is true, meaning that this command was | |
1471 | typed interactively by the user, then give an error | |
1472 | and DO NOT change the state of traceframe_number etc. | |
1473 | ||
1474 | However if FROM_TTY is false, meaning that we're either | |
1475 | in a script, a loop, or a user-defined command, then | |
1476 | DON'T give an error, but DO change the state of | |
1477 | traceframe_number etc. to invalid. | |
1478 | ||
1479 | The rationalle is that if you typed the command, you | |
1480 | might just have committed a typo or something, and you'd | |
1481 | like to NOT lose your current debugging state. However | |
1482 | if you're in a user-defined command or especially in a | |
1483 | loop, then you need a way to detect that the command | |
1484 | failed WITHOUT aborting. This allows you to write | |
1485 | scripts that search thru the trace buffer until the end, | |
1486 | and then continue on to do something else. */ | |
1487 | ||
1488 | if (from_tty) | |
8a3fe4f8 | 1489 | error (_("Target failed to find requested trace frame.")); |
c5aa993b JM |
1490 | else |
1491 | { | |
1492 | if (info_verbose) | |
1493 | printf_filtered ("End of trace buffer.\n"); | |
d183932d MS |
1494 | /* The following will not recurse, since it's |
1495 | special-cased. */ | |
c5aa993b | 1496 | trace_find_command ("-1", from_tty); |
d183932d MS |
1497 | reply = NULL; /* Break out of loop |
1498 | (avoid recursive nonsense). */ | |
c5aa993b JM |
1499 | } |
1500 | } | |
1501 | break; | |
1502 | case 'T': | |
1503 | if ((target_tracept = (int) strtol (++reply, &reply, 16)) == -1) | |
8a3fe4f8 | 1504 | error (_("Target failed to find requested trace frame.")); |
c5aa993b JM |
1505 | break; |
1506 | case 'O': /* "OK"? */ | |
1507 | if (reply[1] == 'K' && reply[2] == '\0') | |
1508 | reply += 2; | |
1509 | else | |
8a3fe4f8 | 1510 | error (_("Bogus reply from target: %s"), reply); |
c5aa993b JM |
1511 | break; |
1512 | default: | |
8a3fe4f8 | 1513 | error (_("Bogus reply from target: %s"), reply); |
c5aa993b | 1514 | } |
c906108c | 1515 | |
35f196d9 | 1516 | reinit_frame_cache (); |
c906108c | 1517 | registers_changed (); |
c906108c SS |
1518 | set_traceframe_num (target_frameno); |
1519 | set_tracepoint_num (target_tracept); | |
1520 | if (target_frameno == -1) | |
fb14de7b | 1521 | set_traceframe_context (NULL); |
c906108c | 1522 | else |
fb14de7b | 1523 | set_traceframe_context (get_current_frame ()); |
c906108c SS |
1524 | |
1525 | if (from_tty) | |
1526 | { | |
0faf0076 | 1527 | enum print_what print_what; |
c906108c SS |
1528 | |
1529 | /* NOTE: in immitation of the step command, try to determine | |
d183932d MS |
1530 | whether we have made a transition from one function to |
1531 | another. If so, we'll print the "stack frame" (ie. the new | |
1532 | function and it's arguments) -- otherwise we'll just show the | |
fb14de7b UW |
1533 | new source line. */ |
1534 | ||
1535 | if (frame_id_eq (old_frame_id, | |
1536 | get_frame_id (get_current_frame ()))) | |
0faf0076 | 1537 | print_what = SRC_LINE; |
c906108c | 1538 | else |
0faf0076 | 1539 | print_what = SRC_AND_LOC; |
c906108c | 1540 | |
b04f3ab4 | 1541 | print_stack_frame (get_selected_frame (NULL), 1, print_what); |
c906108c SS |
1542 | do_displays (); |
1543 | } | |
1544 | } | |
1545 | ||
1546 | /* trace_find_command takes a trace frame number n, | |
1547 | sends "QTFrame:<n>" to the target, | |
1548 | and accepts a reply that may contain several optional pieces | |
1549 | of information: a frame number, a tracepoint number, and an | |
1550 | indication of whether this is a trap frame or a stepping frame. | |
1551 | ||
1552 | The minimal response is just "OK" (which indicates that the | |
1553 | target does not give us a frame number or a tracepoint number). | |
1554 | Instead of that, the target may send us a string containing | |
1555 | any combination of: | |
c5aa993b JM |
1556 | F<hexnum> (gives the selected frame number) |
1557 | T<hexnum> (gives the selected tracepoint number) | |
1558 | */ | |
c906108c SS |
1559 | |
1560 | /* tfind command */ | |
1561 | static void | |
fba45db2 | 1562 | trace_find_command (char *args, int from_tty) |
d183932d | 1563 | { /* this should only be called with a numeric argument */ |
c906108c | 1564 | int frameno = -1; |
c906108c SS |
1565 | |
1566 | if (target_is_remote ()) | |
1567 | { | |
9a4105ab AC |
1568 | if (deprecated_trace_find_hook) |
1569 | deprecated_trace_find_hook (args, from_tty); | |
c5aa993b | 1570 | |
c906108c | 1571 | if (args == 0 || *args == 0) |
d183932d | 1572 | { /* TFIND with no args means find NEXT trace frame. */ |
c906108c SS |
1573 | if (traceframe_number == -1) |
1574 | frameno = 0; /* "next" is first one */ | |
1575 | else | |
1576 | frameno = traceframe_number + 1; | |
1577 | } | |
1578 | else if (0 == strcmp (args, "-")) | |
1579 | { | |
1580 | if (traceframe_number == -1) | |
8a3fe4f8 | 1581 | error (_("not debugging trace buffer")); |
c906108c | 1582 | else if (from_tty && traceframe_number == 0) |
8a3fe4f8 | 1583 | error (_("already at start of trace buffer")); |
c906108c SS |
1584 | |
1585 | frameno = traceframe_number - 1; | |
1586 | } | |
1587 | else | |
bb518678 | 1588 | frameno = parse_and_eval_long (args); |
c906108c SS |
1589 | |
1590 | if (frameno < -1) | |
8a3fe4f8 | 1591 | error (_("invalid input (%d is less than zero)"), frameno); |
c906108c SS |
1592 | |
1593 | sprintf (target_buf, "QTFrame:%x", frameno); | |
6d820c5c | 1594 | finish_tfind_command (&target_buf, &target_buf_size, from_tty); |
c906108c SS |
1595 | } |
1596 | else | |
8a3fe4f8 | 1597 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1598 | } |
1599 | ||
1600 | /* tfind end */ | |
1601 | static void | |
fba45db2 | 1602 | trace_find_end_command (char *args, int from_tty) |
c906108c SS |
1603 | { |
1604 | trace_find_command ("-1", from_tty); | |
1605 | } | |
1606 | ||
1607 | /* tfind none */ | |
1608 | static void | |
fba45db2 | 1609 | trace_find_none_command (char *args, int from_tty) |
c906108c SS |
1610 | { |
1611 | trace_find_command ("-1", from_tty); | |
1612 | } | |
1613 | ||
1614 | /* tfind start */ | |
1615 | static void | |
fba45db2 | 1616 | trace_find_start_command (char *args, int from_tty) |
c906108c SS |
1617 | { |
1618 | trace_find_command ("0", from_tty); | |
1619 | } | |
1620 | ||
1621 | /* tfind pc command */ | |
1622 | static void | |
fba45db2 | 1623 | trace_find_pc_command (char *args, int from_tty) |
d183932d | 1624 | { |
c906108c | 1625 | CORE_ADDR pc; |
104c1213 | 1626 | char tmp[40]; |
c906108c SS |
1627 | |
1628 | if (target_is_remote ()) | |
1629 | { | |
1630 | if (args == 0 || *args == 0) | |
fb14de7b | 1631 | pc = regcache_read_pc (get_current_regcache ()); |
c906108c SS |
1632 | else |
1633 | pc = parse_and_eval_address (args); | |
1634 | ||
104c1213 JM |
1635 | sprintf_vma (tmp, pc); |
1636 | sprintf (target_buf, "QTFrame:pc:%s", tmp); | |
6d820c5c | 1637 | finish_tfind_command (&target_buf, &target_buf_size, from_tty); |
c906108c SS |
1638 | } |
1639 | else | |
8a3fe4f8 | 1640 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1641 | } |
1642 | ||
1643 | /* tfind tracepoint command */ | |
1644 | static void | |
fba45db2 | 1645 | trace_find_tracepoint_command (char *args, int from_tty) |
d183932d | 1646 | { |
c906108c | 1647 | int tdp; |
c906108c SS |
1648 | |
1649 | if (target_is_remote ()) | |
1650 | { | |
1651 | if (args == 0 || *args == 0) | |
3db26b01 JB |
1652 | { |
1653 | if (tracepoint_number == -1) | |
8a3fe4f8 | 1654 | error (_("No current tracepoint -- please supply an argument.")); |
3db26b01 JB |
1655 | else |
1656 | tdp = tracepoint_number; /* default is current TDP */ | |
1657 | } | |
c906108c | 1658 | else |
0e828ed1 | 1659 | tdp = parse_and_eval_long (args); |
c906108c SS |
1660 | |
1661 | sprintf (target_buf, "QTFrame:tdp:%x", tdp); | |
6d820c5c | 1662 | finish_tfind_command (&target_buf, &target_buf_size, from_tty); |
c906108c SS |
1663 | } |
1664 | else | |
8a3fe4f8 | 1665 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1666 | } |
1667 | ||
1668 | /* TFIND LINE command: | |
c5aa993b | 1669 | |
c906108c | 1670 | This command will take a sourceline for argument, just like BREAK |
d183932d | 1671 | or TRACE (ie. anything that "decode_line_1" can handle). |
c5aa993b | 1672 | |
c906108c SS |
1673 | With no argument, this command will find the next trace frame |
1674 | corresponding to a source line OTHER THAN THE CURRENT ONE. */ | |
1675 | ||
1676 | static void | |
fba45db2 | 1677 | trace_find_line_command (char *args, int from_tty) |
d183932d | 1678 | { |
c906108c SS |
1679 | static CORE_ADDR start_pc, end_pc; |
1680 | struct symtabs_and_lines sals; | |
1681 | struct symtab_and_line sal; | |
c906108c | 1682 | struct cleanup *old_chain; |
104c1213 | 1683 | char startpc_str[40], endpc_str[40]; |
c906108c SS |
1684 | |
1685 | if (target_is_remote ()) | |
1686 | { | |
1687 | if (args == 0 || *args == 0) | |
1688 | { | |
bdd78e62 | 1689 | sal = find_pc_line (get_frame_pc (get_current_frame ()), 0); |
c906108c SS |
1690 | sals.nelts = 1; |
1691 | sals.sals = (struct symtab_and_line *) | |
1692 | xmalloc (sizeof (struct symtab_and_line)); | |
1693 | sals.sals[0] = sal; | |
1694 | } | |
1695 | else | |
1696 | { | |
1697 | sals = decode_line_spec (args, 1); | |
c5aa993b | 1698 | sal = sals.sals[0]; |
c906108c SS |
1699 | } |
1700 | ||
b8c9b27d | 1701 | old_chain = make_cleanup (xfree, sals.sals); |
c906108c SS |
1702 | if (sal.symtab == 0) |
1703 | { | |
1704 | printf_filtered ("TFIND: No line number information available"); | |
1705 | if (sal.pc != 0) | |
1706 | { | |
d183932d MS |
1707 | /* This is useful for "info line *0x7f34". If we can't |
1708 | tell the user about a source line, at least let them | |
1709 | have the symbolic address. */ | |
c906108c SS |
1710 | printf_filtered (" for address "); |
1711 | wrap_here (" "); | |
1712 | print_address (sal.pc, gdb_stdout); | |
1713 | printf_filtered (";\n -- will attempt to find by PC. \n"); | |
1714 | } | |
1715 | else | |
1716 | { | |
1717 | printf_filtered (".\n"); | |
d183932d | 1718 | return; /* No line, no PC; what can we do? */ |
c906108c SS |
1719 | } |
1720 | } | |
1721 | else if (sal.line > 0 | |
1722 | && find_line_pc_range (sal, &start_pc, &end_pc)) | |
1723 | { | |
1724 | if (start_pc == end_pc) | |
1725 | { | |
1726 | printf_filtered ("Line %d of \"%s\"", | |
1727 | sal.line, sal.symtab->filename); | |
1728 | wrap_here (" "); | |
1729 | printf_filtered (" is at address "); | |
1730 | print_address (start_pc, gdb_stdout); | |
1731 | wrap_here (" "); | |
1732 | printf_filtered (" but contains no code.\n"); | |
1733 | sal = find_pc_line (start_pc, 0); | |
1734 | if (sal.line > 0 && | |
1735 | find_line_pc_range (sal, &start_pc, &end_pc) && | |
1736 | start_pc != end_pc) | |
1737 | printf_filtered ("Attempting to find line %d instead.\n", | |
1738 | sal.line); | |
1739 | else | |
8a3fe4f8 | 1740 | error (_("Cannot find a good line.")); |
c906108c SS |
1741 | } |
1742 | } | |
1743 | else | |
1744 | /* Is there any case in which we get here, and have an address | |
d183932d MS |
1745 | which the user would want to see? If we have debugging |
1746 | symbols and no line numbers? */ | |
8a3fe4f8 | 1747 | error (_("Line number %d is out of range for \"%s\"."), |
c906108c SS |
1748 | sal.line, sal.symtab->filename); |
1749 | ||
104c1213 JM |
1750 | sprintf_vma (startpc_str, start_pc); |
1751 | sprintf_vma (endpc_str, end_pc - 1); | |
d183932d MS |
1752 | /* Find within range of stated line. */ |
1753 | if (args && *args) | |
1754 | sprintf (target_buf, "QTFrame:range:%s:%s", | |
1755 | startpc_str, endpc_str); | |
1756 | /* Find OUTSIDE OF range of CURRENT line. */ | |
1757 | else | |
1758 | sprintf (target_buf, "QTFrame:outside:%s:%s", | |
1759 | startpc_str, endpc_str); | |
6d820c5c | 1760 | finish_tfind_command (&target_buf, &target_buf_size, |
d183932d | 1761 | from_tty); |
c906108c SS |
1762 | do_cleanups (old_chain); |
1763 | } | |
1764 | else | |
8a3fe4f8 | 1765 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1766 | } |
1767 | ||
1768 | /* tfind range command */ | |
1769 | static void | |
fba45db2 | 1770 | trace_find_range_command (char *args, int from_tty) |
104c1213 | 1771 | { |
c906108c | 1772 | static CORE_ADDR start, stop; |
104c1213 | 1773 | char start_str[40], stop_str[40]; |
c906108c SS |
1774 | char *tmp; |
1775 | ||
1776 | if (target_is_remote ()) | |
1777 | { | |
1778 | if (args == 0 || *args == 0) | |
d183932d | 1779 | { /* XXX FIXME: what should default behavior be? */ |
c906108c SS |
1780 | printf_filtered ("Usage: tfind range <startaddr>,<endaddr>\n"); |
1781 | return; | |
1782 | } | |
1783 | ||
c5aa993b | 1784 | if (0 != (tmp = strchr (args, ','))) |
c906108c SS |
1785 | { |
1786 | *tmp++ = '\0'; /* terminate start address */ | |
104c1213 | 1787 | while (isspace ((int) *tmp)) |
c906108c SS |
1788 | tmp++; |
1789 | start = parse_and_eval_address (args); | |
c5aa993b | 1790 | stop = parse_and_eval_address (tmp); |
c906108c SS |
1791 | } |
1792 | else | |
c5aa993b | 1793 | { /* no explicit end address? */ |
c906108c | 1794 | start = parse_and_eval_address (args); |
c5aa993b | 1795 | stop = start + 1; /* ??? */ |
c906108c SS |
1796 | } |
1797 | ||
104c1213 JM |
1798 | sprintf_vma (start_str, start); |
1799 | sprintf_vma (stop_str, stop); | |
1800 | sprintf (target_buf, "QTFrame:range:%s:%s", start_str, stop_str); | |
6d820c5c | 1801 | finish_tfind_command (&target_buf, &target_buf_size, from_tty); |
c906108c SS |
1802 | } |
1803 | else | |
8a3fe4f8 | 1804 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1805 | } |
1806 | ||
1807 | /* tfind outside command */ | |
1808 | static void | |
fba45db2 | 1809 | trace_find_outside_command (char *args, int from_tty) |
104c1213 | 1810 | { |
c906108c | 1811 | CORE_ADDR start, stop; |
104c1213 | 1812 | char start_str[40], stop_str[40]; |
c906108c SS |
1813 | char *tmp; |
1814 | ||
1815 | if (target_is_remote ()) | |
1816 | { | |
1817 | if (args == 0 || *args == 0) | |
d183932d | 1818 | { /* XXX FIXME: what should default behavior be? */ |
c906108c SS |
1819 | printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n"); |
1820 | return; | |
1821 | } | |
1822 | ||
c5aa993b | 1823 | if (0 != (tmp = strchr (args, ','))) |
c906108c SS |
1824 | { |
1825 | *tmp++ = '\0'; /* terminate start address */ | |
104c1213 | 1826 | while (isspace ((int) *tmp)) |
c906108c SS |
1827 | tmp++; |
1828 | start = parse_and_eval_address (args); | |
c5aa993b | 1829 | stop = parse_and_eval_address (tmp); |
c906108c SS |
1830 | } |
1831 | else | |
c5aa993b | 1832 | { /* no explicit end address? */ |
c906108c | 1833 | start = parse_and_eval_address (args); |
c5aa993b | 1834 | stop = start + 1; /* ??? */ |
c906108c SS |
1835 | } |
1836 | ||
104c1213 JM |
1837 | sprintf_vma (start_str, start); |
1838 | sprintf_vma (stop_str, stop); | |
1839 | sprintf (target_buf, "QTFrame:outside:%s:%s", start_str, stop_str); | |
6d820c5c | 1840 | finish_tfind_command (&target_buf, &target_buf_size, from_tty); |
c906108c SS |
1841 | } |
1842 | else | |
8a3fe4f8 | 1843 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
1844 | } |
1845 | ||
c906108c SS |
1846 | /* info scope command: list the locals for a scope. */ |
1847 | static void | |
fba45db2 | 1848 | scope_info (char *args, int from_tty) |
c906108c | 1849 | { |
c906108c SS |
1850 | struct symtabs_and_lines sals; |
1851 | struct symbol *sym; | |
1852 | struct minimal_symbol *msym; | |
1853 | struct block *block; | |
1854 | char **canonical, *symname, *save_args = args; | |
de4f826b DC |
1855 | struct dict_iterator iter; |
1856 | int j, count = 0; | |
c906108c SS |
1857 | |
1858 | if (args == 0 || *args == 0) | |
8a3fe4f8 | 1859 | error (_("requires an argument (function, line or *addr) to define a scope")); |
c906108c | 1860 | |
68219205 | 1861 | sals = decode_line_1 (&args, 1, NULL, 0, &canonical, NULL); |
c906108c | 1862 | if (sals.nelts == 0) |
450bd37b | 1863 | return; /* presumably decode_line_1 has already warned */ |
c906108c SS |
1864 | |
1865 | /* Resolve line numbers to PC */ | |
1866 | resolve_sal_pc (&sals.sals[0]); | |
1867 | block = block_for_pc (sals.sals[0].pc); | |
1868 | ||
1869 | while (block != 0) | |
1870 | { | |
c5aa993b | 1871 | QUIT; /* allow user to bail out with ^C */ |
de4f826b | 1872 | ALL_BLOCK_SYMBOLS (block, iter, sym) |
c906108c | 1873 | { |
c5aa993b | 1874 | QUIT; /* allow user to bail out with ^C */ |
c906108c SS |
1875 | if (count == 0) |
1876 | printf_filtered ("Scope for %s:\n", save_args); | |
1877 | count++; | |
e88c90f2 | 1878 | |
3567439c | 1879 | symname = SYMBOL_PRINT_NAME (sym); |
c906108c | 1880 | if (symname == NULL || *symname == '\0') |
c5aa993b | 1881 | continue; /* probably botched, certainly useless */ |
c906108c SS |
1882 | |
1883 | printf_filtered ("Symbol %s is ", symname); | |
c5aa993b JM |
1884 | switch (SYMBOL_CLASS (sym)) |
1885 | { | |
1886 | default: | |
1887 | case LOC_UNDEF: /* messed up symbol? */ | |
1888 | printf_filtered ("a bogus symbol, class %d.\n", | |
1889 | SYMBOL_CLASS (sym)); | |
1890 | count--; /* don't count this one */ | |
1891 | continue; | |
1892 | case LOC_CONST: | |
104c1213 | 1893 | printf_filtered ("a constant with value %ld (0x%lx)", |
c5aa993b JM |
1894 | SYMBOL_VALUE (sym), SYMBOL_VALUE (sym)); |
1895 | break; | |
1896 | case LOC_CONST_BYTES: | |
1897 | printf_filtered ("constant bytes: "); | |
1898 | if (SYMBOL_TYPE (sym)) | |
1899 | for (j = 0; j < TYPE_LENGTH (SYMBOL_TYPE (sym)); j++) | |
1900 | fprintf_filtered (gdb_stdout, " %02x", | |
1901 | (unsigned) SYMBOL_VALUE_BYTES (sym)[j]); | |
1902 | break; | |
1903 | case LOC_STATIC: | |
1904 | printf_filtered ("in static storage at address "); | |
ed49a04f | 1905 | printf_filtered ("%s", paddress (SYMBOL_VALUE_ADDRESS (sym))); |
c5aa993b JM |
1906 | break; |
1907 | case LOC_REGISTER: | |
2a2d4dc3 AS |
1908 | if (SYMBOL_IS_ARGUMENT (sym)) |
1909 | printf_filtered ("an argument in register $%s", | |
1910 | gdbarch_register_name | |
1911 | (current_gdbarch, SYMBOL_VALUE (sym))); | |
1912 | else | |
1913 | printf_filtered ("a local variable in register $%s", | |
1914 | gdbarch_register_name | |
c9f4d572 | 1915 | (current_gdbarch, SYMBOL_VALUE (sym))); |
c5aa993b JM |
1916 | break; |
1917 | case LOC_ARG: | |
c5aa993b JM |
1918 | printf_filtered ("an argument at stack/frame offset %ld", |
1919 | SYMBOL_VALUE (sym)); | |
1920 | break; | |
1921 | case LOC_LOCAL: | |
1922 | printf_filtered ("a local variable at frame offset %ld", | |
1923 | SYMBOL_VALUE (sym)); | |
1924 | break; | |
1925 | case LOC_REF_ARG: | |
1926 | printf_filtered ("a reference argument at offset %ld", | |
1927 | SYMBOL_VALUE (sym)); | |
1928 | break; | |
c5aa993b JM |
1929 | case LOC_REGPARM_ADDR: |
1930 | printf_filtered ("the address of an argument, in register $%s", | |
c9f4d572 UW |
1931 | gdbarch_register_name |
1932 | (current_gdbarch, SYMBOL_VALUE (sym))); | |
c5aa993b JM |
1933 | break; |
1934 | case LOC_TYPEDEF: | |
1935 | printf_filtered ("a typedef.\n"); | |
1936 | continue; | |
1937 | case LOC_LABEL: | |
1938 | printf_filtered ("a label at address "); | |
ed49a04f | 1939 | printf_filtered ("%s", paddress (SYMBOL_VALUE_ADDRESS (sym))); |
c5aa993b JM |
1940 | break; |
1941 | case LOC_BLOCK: | |
1942 | printf_filtered ("a function at address "); | |
ed49a04f | 1943 | printf_filtered ("%s", paddress (BLOCK_START (SYMBOL_BLOCK_VALUE (sym)))); |
c5aa993b | 1944 | break; |
c5aa993b | 1945 | case LOC_UNRESOLVED: |
3567439c | 1946 | msym = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym), |
450bd37b | 1947 | NULL, NULL); |
c5aa993b JM |
1948 | if (msym == NULL) |
1949 | printf_filtered ("Unresolved Static"); | |
1950 | else | |
1951 | { | |
1952 | printf_filtered ("static storage at address "); | |
ed49a04f | 1953 | printf_filtered ("%s", paddress (SYMBOL_VALUE_ADDRESS (msym))); |
c5aa993b JM |
1954 | } |
1955 | break; | |
1956 | case LOC_OPTIMIZED_OUT: | |
1957 | printf_filtered ("optimized out.\n"); | |
1958 | continue; | |
450bd37b | 1959 | case LOC_COMPUTED: |
450bd37b MS |
1960 | SYMBOL_OPS (sym)->describe_location (sym, gdb_stdout); |
1961 | break; | |
c5aa993b | 1962 | } |
c906108c | 1963 | if (SYMBOL_TYPE (sym)) |
c5aa993b | 1964 | printf_filtered (", length %d.\n", |
450bd37b | 1965 | TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym)))); |
c906108c SS |
1966 | } |
1967 | if (BLOCK_FUNCTION (block)) | |
1968 | break; | |
1969 | else | |
1970 | block = BLOCK_SUPERBLOCK (block); | |
1971 | } | |
1972 | if (count <= 0) | |
1973 | printf_filtered ("Scope for %s contains no locals or arguments.\n", | |
1974 | save_args); | |
1975 | } | |
1976 | ||
1977 | /* worker function (cleanup) */ | |
1978 | static void | |
710b33bd | 1979 | replace_comma (void *data) |
c906108c | 1980 | { |
710b33bd | 1981 | char *comma = data; |
c906108c SS |
1982 | *comma = ','; |
1983 | } | |
1984 | ||
1985 | /* tdump command */ | |
1986 | static void | |
fba45db2 | 1987 | trace_dump_command (char *args, int from_tty) |
c906108c | 1988 | { |
515630c5 UW |
1989 | struct regcache *regcache; |
1990 | struct gdbarch *gdbarch; | |
1042e4c0 | 1991 | struct breakpoint *t; |
c906108c | 1992 | struct action_line *action; |
c5aa993b JM |
1993 | char *action_exp, *next_comma; |
1994 | struct cleanup *old_cleanups; | |
1995 | int stepping_actions = 0; | |
1996 | int stepping_frame = 0; | |
c906108c SS |
1997 | |
1998 | if (!target_is_remote ()) | |
1999 | { | |
8a3fe4f8 | 2000 | error (_("Trace can only be run on remote targets.")); |
c906108c SS |
2001 | return; |
2002 | } | |
2003 | ||
2004 | if (tracepoint_number == -1) | |
2005 | { | |
8a3fe4f8 | 2006 | warning (_("No current trace frame.")); |
c906108c SS |
2007 | return; |
2008 | } | |
2009 | ||
1042e4c0 | 2010 | t = get_tracepoint (tracepoint_number); |
c906108c SS |
2011 | |
2012 | if (t == NULL) | |
8a3fe4f8 | 2013 | error (_("No known tracepoint matches 'current' tracepoint #%d."), |
c906108c SS |
2014 | tracepoint_number); |
2015 | ||
2016 | old_cleanups = make_cleanup (null_cleanup, NULL); | |
2017 | ||
c5aa993b | 2018 | printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n", |
c906108c SS |
2019 | tracepoint_number, traceframe_number); |
2020 | ||
2021 | /* The current frame is a trap frame if the frame PC is equal | |
2022 | to the tracepoint PC. If not, then the current frame was | |
2023 | collected during single-stepping. */ | |
2024 | ||
515630c5 UW |
2025 | regcache = get_current_regcache (); |
2026 | gdbarch = get_regcache_arch (regcache); | |
2027 | ||
1042e4c0 | 2028 | stepping_frame = (t->loc->address != (regcache_read_pc (regcache) |
515630c5 | 2029 | - gdbarch_decr_pc_after_break (gdbarch))); |
c906108c SS |
2030 | |
2031 | for (action = t->actions; action; action = action->next) | |
2032 | { | |
2033 | struct cmd_list_element *cmd; | |
2034 | ||
c5aa993b | 2035 | QUIT; /* allow user to bail out with ^C */ |
c906108c | 2036 | action_exp = action->action; |
104c1213 | 2037 | while (isspace ((int) *action_exp)) |
c906108c SS |
2038 | action_exp++; |
2039 | ||
2040 | /* The collection actions to be done while stepping are | |
c5aa993b | 2041 | bracketed by the commands "while-stepping" and "end". */ |
c906108c SS |
2042 | |
2043 | if (*action_exp == '#') /* comment line */ | |
2044 | continue; | |
2045 | ||
2046 | cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1); | |
2047 | if (cmd == 0) | |
8a3fe4f8 | 2048 | error (_("Bad action list item: %s"), action_exp); |
c906108c | 2049 | |
bbaca940 | 2050 | if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand)) |
c906108c | 2051 | stepping_actions = 1; |
bbaca940 | 2052 | else if (cmd_cfunc_eq (cmd, end_actions_pseudocommand)) |
c906108c | 2053 | stepping_actions = 0; |
bbaca940 | 2054 | else if (cmd_cfunc_eq (cmd, collect_pseudocommand)) |
c906108c SS |
2055 | { |
2056 | /* Display the collected data. | |
d183932d MS |
2057 | For the trap frame, display only what was collected at |
2058 | the trap. Likewise for stepping frames, display only | |
2059 | what was collected while stepping. This means that the | |
2060 | two boolean variables, STEPPING_FRAME and | |
2061 | STEPPING_ACTIONS should be equal. */ | |
c906108c SS |
2062 | if (stepping_frame == stepping_actions) |
2063 | { | |
c5aa993b JM |
2064 | do |
2065 | { /* repeat over a comma-separated list */ | |
2066 | QUIT; /* allow user to bail out with ^C */ | |
2067 | if (*action_exp == ',') | |
2068 | action_exp++; | |
104c1213 | 2069 | while (isspace ((int) *action_exp)) |
c5aa993b JM |
2070 | action_exp++; |
2071 | ||
2072 | next_comma = strchr (action_exp, ','); | |
2073 | ||
2074 | if (0 == strncasecmp (action_exp, "$reg", 4)) | |
2075 | registers_info (NULL, from_tty); | |
2076 | else if (0 == strncasecmp (action_exp, "$loc", 4)) | |
2077 | locals_info (NULL, from_tty); | |
2078 | else if (0 == strncasecmp (action_exp, "$arg", 4)) | |
2079 | args_info (NULL, from_tty); | |
2080 | else | |
2081 | { /* variable */ | |
2082 | if (next_comma) | |
2083 | { | |
2084 | make_cleanup (replace_comma, next_comma); | |
2085 | *next_comma = '\0'; | |
2086 | } | |
2087 | printf_filtered ("%s = ", action_exp); | |
2088 | output_command (action_exp, from_tty); | |
2089 | printf_filtered ("\n"); | |
2090 | } | |
2091 | if (next_comma) | |
2092 | *next_comma = ','; | |
2093 | action_exp = next_comma; | |
2094 | } | |
2095 | while (action_exp && *action_exp == ','); | |
c906108c SS |
2096 | } |
2097 | } | |
2098 | } | |
2099 | discard_cleanups (old_cleanups); | |
2100 | } | |
2101 | ||
2102 | /* Convert the memory pointed to by mem into hex, placing result in buf. | |
2103 | * Return a pointer to the last char put in buf (null) | |
2104 | * "stolen" from sparc-stub.c | |
2105 | */ | |
2106 | ||
c5aa993b | 2107 | static const char hexchars[] = "0123456789abcdef"; |
c906108c | 2108 | |
47b667de AC |
2109 | static char * |
2110 | mem2hex (gdb_byte *mem, char *buf, int count) | |
c906108c | 2111 | { |
47b667de | 2112 | gdb_byte ch; |
c906108c SS |
2113 | |
2114 | while (count-- > 0) | |
2115 | { | |
2116 | ch = *mem++; | |
2117 | ||
2118 | *buf++ = hexchars[ch >> 4]; | |
2119 | *buf++ = hexchars[ch & 0xf]; | |
2120 | } | |
2121 | ||
2122 | *buf = 0; | |
2123 | ||
2124 | return buf; | |
2125 | } | |
2126 | ||
c5aa993b | 2127 | int |
fba45db2 | 2128 | get_traceframe_number (void) |
c906108c | 2129 | { |
c5aa993b | 2130 | return traceframe_number; |
c906108c SS |
2131 | } |
2132 | ||
2133 | ||
2134 | /* module initialization */ | |
2135 | void | |
fba45db2 | 2136 | _initialize_tracepoint (void) |
c906108c | 2137 | { |
fa58ee11 EZ |
2138 | struct cmd_list_element *c; |
2139 | ||
c906108c SS |
2140 | traceframe_number = -1; |
2141 | tracepoint_number = -1; | |
2142 | ||
c906108c SS |
2143 | if (tracepoint_list.list == NULL) |
2144 | { | |
2145 | tracepoint_list.listsize = 128; | |
c5aa993b | 2146 | tracepoint_list.list = xmalloc |
c906108c SS |
2147 | (tracepoint_list.listsize * sizeof (struct memrange)); |
2148 | } | |
2149 | if (tracepoint_list.aexpr_list == NULL) | |
2150 | { | |
2151 | tracepoint_list.aexpr_listsize = 128; | |
2152 | tracepoint_list.aexpr_list = xmalloc | |
2153 | (tracepoint_list.aexpr_listsize * sizeof (struct agent_expr *)); | |
2154 | } | |
2155 | ||
2156 | if (stepping_list.list == NULL) | |
2157 | { | |
2158 | stepping_list.listsize = 128; | |
c5aa993b | 2159 | stepping_list.list = xmalloc |
c906108c SS |
2160 | (stepping_list.listsize * sizeof (struct memrange)); |
2161 | } | |
2162 | ||
2163 | if (stepping_list.aexpr_list == NULL) | |
2164 | { | |
2165 | stepping_list.aexpr_listsize = 128; | |
2166 | stepping_list.aexpr_list = xmalloc | |
2167 | (stepping_list.aexpr_listsize * sizeof (struct agent_expr *)); | |
2168 | } | |
2169 | ||
c5aa993b | 2170 | add_info ("scope", scope_info, |
1bedd215 | 2171 | _("List the variables local to a scope")); |
c906108c | 2172 | |
e00d1dc8 | 2173 | add_cmd ("tracepoints", class_trace, NULL, |
1a966eab | 2174 | _("Tracing of program execution without stopping the program."), |
c906108c SS |
2175 | &cmdlist); |
2176 | ||
c5aa993b | 2177 | add_com ("tdump", class_trace, trace_dump_command, |
1bedd215 | 2178 | _("Print everything collected at the current tracepoint.")); |
c906108c | 2179 | |
1bedd215 AC |
2180 | add_prefix_cmd ("tfind", class_trace, trace_find_command, _("\ |
2181 | Select a trace frame;\n\ | |
2182 | No argument means forward by one frame; '-' means backward by one frame."), | |
c906108c SS |
2183 | &tfindlist, "tfind ", 1, &cmdlist); |
2184 | ||
1a966eab AC |
2185 | add_cmd ("outside", class_trace, trace_find_outside_command, _("\ |
2186 | Select a trace frame whose PC is outside the given range.\n\ | |
2187 | Usage: tfind outside addr1, addr2"), | |
c906108c SS |
2188 | &tfindlist); |
2189 | ||
1a966eab AC |
2190 | add_cmd ("range", class_trace, trace_find_range_command, _("\ |
2191 | Select a trace frame whose PC is in the given range.\n\ | |
2192 | Usage: tfind range addr1,addr2"), | |
c906108c SS |
2193 | &tfindlist); |
2194 | ||
1a966eab AC |
2195 | add_cmd ("line", class_trace, trace_find_line_command, _("\ |
2196 | Select a trace frame by source line.\n\ | |
c906108c SS |
2197 | Argument can be a line number (with optional source file), \n\ |
2198 | a function name, or '*' followed by an address.\n\ | |
1a966eab | 2199 | Default argument is 'the next source line that was traced'."), |
c906108c SS |
2200 | &tfindlist); |
2201 | ||
1a966eab AC |
2202 | add_cmd ("tracepoint", class_trace, trace_find_tracepoint_command, _("\ |
2203 | Select a trace frame by tracepoint number.\n\ | |
2204 | Default is the tracepoint for the current trace frame."), | |
c906108c SS |
2205 | &tfindlist); |
2206 | ||
1a966eab AC |
2207 | add_cmd ("pc", class_trace, trace_find_pc_command, _("\ |
2208 | Select a trace frame by PC.\n\ | |
2209 | Default is the current PC, or the PC of the current trace frame."), | |
c906108c SS |
2210 | &tfindlist); |
2211 | ||
1a966eab AC |
2212 | add_cmd ("end", class_trace, trace_find_end_command, _("\ |
2213 | Synonym for 'none'.\n\ | |
2214 | De-select any trace frame and resume 'live' debugging."), | |
c906108c SS |
2215 | &tfindlist); |
2216 | ||
2217 | add_cmd ("none", class_trace, trace_find_none_command, | |
1a966eab | 2218 | _("De-select any trace frame and resume 'live' debugging."), |
c906108c SS |
2219 | &tfindlist); |
2220 | ||
2221 | add_cmd ("start", class_trace, trace_find_start_command, | |
1a966eab | 2222 | _("Select the first trace frame in the trace buffer."), |
c906108c SS |
2223 | &tfindlist); |
2224 | ||
c5aa993b | 2225 | add_com ("tstatus", class_trace, trace_status_command, |
1bedd215 | 2226 | _("Display the status of the current trace data collection.")); |
c906108c | 2227 | |
c5aa993b | 2228 | add_com ("tstop", class_trace, trace_stop_command, |
1bedd215 | 2229 | _("Stop trace data collection.")); |
c906108c SS |
2230 | |
2231 | add_com ("tstart", class_trace, trace_start_command, | |
1bedd215 | 2232 | _("Start trace data collection.")); |
c906108c | 2233 | |
1bedd215 AC |
2234 | add_com ("end", class_trace, end_actions_pseudocommand, _("\ |
2235 | Ends a list of commands or actions.\n\ | |
c906108c SS |
2236 | Several GDB commands allow you to enter a list of commands or actions.\n\ |
2237 | Entering \"end\" on a line by itself is the normal way to terminate\n\ | |
2238 | such a list.\n\n\ | |
1bedd215 | 2239 | Note: the \"end\" command cannot be used at the gdb prompt.")); |
c906108c | 2240 | |
1bedd215 AC |
2241 | add_com ("while-stepping", class_trace, while_stepping_pseudocommand, _("\ |
2242 | Specify single-stepping behavior at a tracepoint.\n\ | |
c906108c SS |
2243 | Argument is number of instructions to trace in single-step mode\n\ |
2244 | following the tracepoint. This command is normally followed by\n\ | |
2245 | one or more \"collect\" commands, to specify what to collect\n\ | |
2246 | while single-stepping.\n\n\ | |
1bedd215 | 2247 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 2248 | |
c5aa993b JM |
2249 | add_com_alias ("ws", "while-stepping", class_alias, 0); |
2250 | add_com_alias ("stepping", "while-stepping", class_alias, 0); | |
c906108c | 2251 | |
1bedd215 AC |
2252 | add_com ("collect", class_trace, collect_pseudocommand, _("\ |
2253 | Specify one or more data items to be collected at a tracepoint.\n\ | |
c906108c SS |
2254 | Accepts a comma-separated list of (one or more) expressions. GDB will\n\ |
2255 | collect all data (variables, registers) referenced by that expression.\n\ | |
2256 | Also accepts the following special arguments:\n\ | |
2257 | $regs -- all registers.\n\ | |
2258 | $args -- all function arguments.\n\ | |
2259 | $locals -- all variables local to the block/function scope.\n\ | |
1bedd215 | 2260 | Note: this command can only be used in a tracepoint \"actions\" list.")); |
c906108c | 2261 | |
1bedd215 AC |
2262 | add_com ("actions", class_trace, trace_actions_command, _("\ |
2263 | Specify the actions to be taken at a tracepoint.\n\ | |
c906108c SS |
2264 | Tracepoint actions may include collecting of specified data, \n\ |
2265 | single-stepping, or enabling/disabling other tracepoints, \n\ | |
1bedd215 | 2266 | depending on target's capabilities.")); |
c906108c | 2267 | |
6d820c5c DJ |
2268 | target_buf_size = 2048; |
2269 | target_buf = xmalloc (target_buf_size); | |
c906108c | 2270 | } |