Commit | Line | Data |
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69d05d38 HZ |
1 | /* Process record and replay target for GDB, the GNU debugger. |
2 | ||
ecd75fc8 | 3 | Copyright (C) 2008-2014 Free Software Foundation, Inc. |
69d05d38 HZ |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include "defs.h" | |
21 | #include "gdbcmd.h" | |
0156b218 | 22 | #include "completer.h" |
69d05d38 | 23 | #include "record.h" |
82a90ccf | 24 | #include "observer.h" |
d02ed0bb MM |
25 | #include "inferior.h" |
26 | #include "common/common-utils.h" | |
67c86d06 MM |
27 | #include "cli/cli-utils.h" |
28 | #include "disasm.h" | |
29 | ||
30 | #include <ctype.h> | |
69d05d38 | 31 | |
d02ed0bb MM |
32 | /* This is the debug switch for process record. */ |
33 | unsigned int record_debug = 0; | |
27699eea | 34 | |
67c86d06 MM |
35 | /* The number of instructions to print in "record instruction-history". */ |
36 | static unsigned int record_insn_history_size = 10; | |
37 | ||
42c634cb PA |
38 | /* The variable registered as control variable in the "record |
39 | instruction-history" command. Necessary for extra input | |
40 | validation. */ | |
41 | static unsigned int record_insn_history_size_setshow_var; | |
42 | ||
15984c13 MM |
43 | /* The number of functions to print in "record function-call-history". */ |
44 | static unsigned int record_call_history_size = 10; | |
45 | ||
42c634cb PA |
46 | /* The variable registered as control variable in the "record |
47 | call-history" command. Necessary for extra input validation. */ | |
48 | static unsigned int record_call_history_size_setshow_var; | |
49 | ||
d02ed0bb | 50 | struct cmd_list_element *record_cmdlist = NULL; |
742ce053 | 51 | struct cmd_list_element *record_goto_cmdlist = NULL; |
d02ed0bb MM |
52 | struct cmd_list_element *set_record_cmdlist = NULL; |
53 | struct cmd_list_element *show_record_cmdlist = NULL; | |
54 | struct cmd_list_element *info_record_cmdlist = NULL; | |
27699eea | 55 | |
7c1687a9 MM |
56 | #define DEBUG(msg, args...) \ |
57 | if (record_debug) \ | |
58 | fprintf_unfiltered (gdb_stdlog, "record: " msg "\n", ##args) | |
59 | ||
8213266a | 60 | /* See record.h. */ |
27699eea | 61 | |
8213266a | 62 | struct target_ops * |
d02ed0bb | 63 | find_record_target (void) |
27699eea | 64 | { |
8b06beed | 65 | return find_target_at (record_stratum); |
27699eea MS |
66 | } |
67 | ||
d02ed0bb | 68 | /* Check that recording is active. Throw an error, if it isn't. */ |
27699eea | 69 | |
d02ed0bb MM |
70 | static struct target_ops * |
71 | require_record_target (void) | |
27699eea | 72 | { |
d02ed0bb | 73 | struct target_ops *t; |
27699eea | 74 | |
d02ed0bb MM |
75 | t = find_record_target (); |
76 | if (t == NULL) | |
77 | error (_("No record target is currently active.\n" | |
78 | "Use one of the \"target record-<tab><tab>\" commands first.")); | |
27699eea | 79 | |
d02ed0bb | 80 | return t; |
27699eea MS |
81 | } |
82 | ||
d02ed0bb | 83 | /* See record.h. */ |
27699eea | 84 | |
8213266a PA |
85 | void |
86 | record_preopen (void) | |
87 | { | |
88 | /* Check if a record target is already running. */ | |
89 | if (find_record_target () != NULL) | |
90 | error (_("The process is already being recorded. Use \"record stop\" to " | |
91 | "stop recording first.")); | |
92 | } | |
93 | ||
94 | /* See record.h. */ | |
95 | ||
d02ed0bb MM |
96 | int |
97 | record_read_memory (struct gdbarch *gdbarch, | |
98 | CORE_ADDR memaddr, gdb_byte *myaddr, | |
99 | ssize_t len) | |
27699eea | 100 | { |
d02ed0bb | 101 | int ret = target_read_memory (memaddr, myaddr, len); |
27699eea | 102 | |
7c1687a9 MM |
103 | if (ret != 0) |
104 | DEBUG ("error reading memory at addr %s len = %ld.\n", | |
105 | paddress (gdbarch, memaddr), (long) len); | |
106 | ||
d02ed0bb | 107 | return ret; |
27699eea MS |
108 | } |
109 | ||
7c1687a9 MM |
110 | /* Stop recording. */ |
111 | ||
112 | static void | |
113 | record_stop (struct target_ops *t) | |
114 | { | |
115 | DEBUG ("stop %s", t->to_shortname); | |
116 | ||
117 | if (t->to_stop_recording != NULL) | |
118 | t->to_stop_recording (); | |
119 | } | |
120 | ||
121 | /* Unpush the record target. */ | |
122 | ||
123 | static void | |
124 | record_unpush (struct target_ops *t) | |
125 | { | |
126 | DEBUG ("unpush %s", t->to_shortname); | |
127 | ||
128 | unpush_target (t); | |
129 | } | |
130 | ||
131 | /* See record.h. */ | |
132 | ||
133 | void | |
134 | record_disconnect (struct target_ops *t, char *args, int from_tty) | |
135 | { | |
136 | gdb_assert (t->to_stratum == record_stratum); | |
137 | ||
138 | DEBUG ("disconnect %s", t->to_shortname); | |
139 | ||
140 | record_stop (t); | |
141 | record_unpush (t); | |
142 | ||
143 | target_disconnect (args, from_tty); | |
144 | } | |
145 | ||
146 | /* See record.h. */ | |
147 | ||
148 | void | |
52554a0e | 149 | record_detach (struct target_ops *t, const char *args, int from_tty) |
7c1687a9 MM |
150 | { |
151 | gdb_assert (t->to_stratum == record_stratum); | |
152 | ||
153 | DEBUG ("detach %s", t->to_shortname); | |
154 | ||
155 | record_stop (t); | |
156 | record_unpush (t); | |
157 | ||
158 | target_detach (args, from_tty); | |
159 | } | |
160 | ||
161 | /* See record.h. */ | |
162 | ||
163 | void | |
164 | record_mourn_inferior (struct target_ops *t) | |
165 | { | |
166 | gdb_assert (t->to_stratum == record_stratum); | |
167 | ||
168 | DEBUG ("mourn inferior %s", t->to_shortname); | |
169 | ||
170 | /* It is safer to not stop recording. Resources will be freed when | |
171 | threads are discarded. */ | |
172 | record_unpush (t); | |
173 | ||
174 | target_mourn_inferior (); | |
175 | } | |
176 | ||
177 | /* See record.h. */ | |
178 | ||
179 | void | |
180 | record_kill (struct target_ops *t) | |
181 | { | |
182 | gdb_assert (t->to_stratum == record_stratum); | |
183 | ||
184 | DEBUG ("kill %s", t->to_shortname); | |
185 | ||
186 | /* It is safer to not stop recording. Resources will be freed when | |
187 | threads are discarded. */ | |
188 | record_unpush (t); | |
189 | ||
190 | target_kill (); | |
191 | } | |
192 | ||
6df67667 MS |
193 | /* Implement "show record debug" command. */ |
194 | ||
69d05d38 HZ |
195 | static void |
196 | show_record_debug (struct ui_file *file, int from_tty, | |
197 | struct cmd_list_element *c, const char *value) | |
198 | { | |
199 | fprintf_filtered (file, _("Debugging of process record target is %s.\n"), | |
200 | value); | |
201 | } | |
202 | ||
203 | /* Alias for "target record". */ | |
204 | ||
205 | static void | |
206 | cmd_record_start (char *args, int from_tty) | |
207 | { | |
d02ed0bb | 208 | execute_command ("target record-full", from_tty); |
69d05d38 HZ |
209 | } |
210 | ||
211 | /* Truncate the record log from the present point | |
212 | of replay until the end. */ | |
213 | ||
214 | static void | |
215 | cmd_record_delete (char *args, int from_tty) | |
216 | { | |
d02ed0bb MM |
217 | require_record_target (); |
218 | ||
219 | if (!target_record_is_replaying ()) | |
69d05d38 | 220 | { |
d02ed0bb MM |
221 | printf_unfiltered (_("Already at end of record list.\n")); |
222 | return; | |
223 | } | |
69d05d38 | 224 | |
d02ed0bb MM |
225 | if (!target_supports_delete_record ()) |
226 | { | |
227 | printf_unfiltered (_("The current record target does not support " | |
228 | "this operation.\n")); | |
229 | return; | |
69d05d38 | 230 | } |
d02ed0bb MM |
231 | |
232 | if (!from_tty || query (_("Delete the log from this point forward " | |
233 | "and begin to record the running message " | |
234 | "at current PC?"))) | |
235 | target_delete_record (); | |
69d05d38 HZ |
236 | } |
237 | ||
6df67667 | 238 | /* Implement the "stoprecord" or "record stop" command. */ |
69d05d38 HZ |
239 | |
240 | static void | |
241 | cmd_record_stop (char *args, int from_tty) | |
242 | { | |
d02ed0bb | 243 | struct target_ops *t; |
82a90ccf | 244 | |
d02ed0bb | 245 | t = require_record_target (); |
7c1687a9 MM |
246 | |
247 | record_stop (t); | |
248 | record_unpush (t); | |
69d05d38 | 249 | |
d02ed0bb MM |
250 | printf_unfiltered (_("Process record is stopped and all execution " |
251 | "logs are deleted.\n")); | |
69d05d38 | 252 | |
d02ed0bb | 253 | observer_notify_record_changed (current_inferior (), 0); |
69d05d38 HZ |
254 | } |
255 | ||
d02ed0bb | 256 | /* The "set record" command. */ |
69d05d38 HZ |
257 | |
258 | static void | |
259 | set_record_command (char *args, int from_tty) | |
260 | { | |
3e43a32a MS |
261 | printf_unfiltered (_("\"set record\" must be followed " |
262 | "by an apporpriate subcommand.\n")); | |
69d05d38 HZ |
263 | help_list (set_record_cmdlist, "set record ", all_commands, gdb_stdout); |
264 | } | |
265 | ||
d02ed0bb MM |
266 | /* The "show record" command. */ |
267 | ||
69d05d38 HZ |
268 | static void |
269 | show_record_command (char *args, int from_tty) | |
270 | { | |
271 | cmd_show_list (show_record_cmdlist, from_tty, ""); | |
272 | } | |
273 | ||
d02ed0bb | 274 | /* The "info record" command. */ |
b54295a7 | 275 | |
69d05d38 HZ |
276 | static void |
277 | info_record_command (char *args, int from_tty) | |
278 | { | |
d02ed0bb | 279 | struct target_ops *t; |
0156b218 | 280 | |
d02ed0bb MM |
281 | t = find_record_target (); |
282 | if (t == NULL) | |
0156b218 | 283 | { |
d02ed0bb MM |
284 | printf_filtered (_("No record target is currently active.\n")); |
285 | return; | |
0156b218 MS |
286 | } |
287 | ||
d02ed0bb MM |
288 | printf_filtered (_("Active record target: %s\n"), t->to_shortname); |
289 | if (t->to_info_record != NULL) | |
290 | t->to_info_record (); | |
0156b218 MS |
291 | } |
292 | ||
d02ed0bb | 293 | /* The "record save" command. */ |
0156b218 MS |
294 | |
295 | static void | |
296 | cmd_record_save (char *args, int from_tty) | |
297 | { | |
298 | char *recfilename, recfilename_buffer[40]; | |
0156b218 | 299 | |
d02ed0bb | 300 | require_record_target (); |
0156b218 | 301 | |
d02ed0bb | 302 | if (args != NULL && *args != 0) |
0156b218 MS |
303 | recfilename = args; |
304 | else | |
305 | { | |
306 | /* Default recfile name is "gdb_record.PID". */ | |
d02ed0bb | 307 | xsnprintf (recfilename_buffer, sizeof (recfilename_buffer), |
dfd4cc63 | 308 | "gdb_record.%d", ptid_get_pid (inferior_ptid)); |
0156b218 MS |
309 | recfilename = recfilename_buffer; |
310 | } | |
311 | ||
d02ed0bb | 312 | target_save_record (recfilename); |
6b04bdb7 MS |
313 | } |
314 | ||
315 | /* "record goto" command. Argument is an instruction number, | |
316 | as given by "info record". | |
317 | ||
318 | Rewinds the recording (forward or backward) to the given instruction. */ | |
319 | ||
d02ed0bb | 320 | void |
6b04bdb7 MS |
321 | cmd_record_goto (char *arg, int from_tty) |
322 | { | |
742ce053 | 323 | ULONGEST insn; |
6b04bdb7 MS |
324 | |
325 | if (arg == NULL || *arg == '\0') | |
326 | error (_("Command requires an argument (insn number to go to).")); | |
327 | ||
742ce053 | 328 | insn = parse_and_eval_long (arg); |
6b04bdb7 | 329 | |
742ce053 MM |
330 | require_record_target (); |
331 | target_goto_record (insn); | |
332 | } | |
333 | ||
334 | /* The "record goto begin" command. */ | |
335 | ||
336 | static void | |
337 | cmd_record_goto_begin (char *arg, int from_tty) | |
338 | { | |
339 | if (arg != NULL && *arg != '\0') | |
340 | error (_("Junk after argument: %s."), arg); | |
341 | ||
342 | require_record_target (); | |
343 | target_goto_record_begin (); | |
344 | } | |
345 | ||
346 | /* The "record goto end" command. */ | |
347 | ||
348 | static void | |
349 | cmd_record_goto_end (char *arg, int from_tty) | |
350 | { | |
351 | if (arg != NULL && *arg != '\0') | |
352 | error (_("Junk after argument: %s."), arg); | |
353 | ||
354 | require_record_target (); | |
355 | target_goto_record_end (); | |
6b04bdb7 MS |
356 | } |
357 | ||
67c86d06 MM |
358 | /* Read an instruction number from an argument string. */ |
359 | ||
360 | static ULONGEST | |
361 | get_insn_number (char **arg) | |
362 | { | |
363 | ULONGEST number; | |
364 | const char *begin, *end, *pos; | |
365 | ||
366 | begin = *arg; | |
367 | pos = skip_spaces_const (begin); | |
368 | ||
369 | if (!isdigit (*pos)) | |
370 | error (_("Expected positive number, got: %s."), pos); | |
371 | ||
372 | number = strtoulst (pos, &end, 10); | |
373 | ||
374 | *arg += (end - begin); | |
375 | ||
376 | return number; | |
377 | } | |
378 | ||
379 | /* Read a context size from an argument string. */ | |
380 | ||
381 | static int | |
382 | get_context_size (char **arg) | |
383 | { | |
384 | char *pos; | |
385 | int number; | |
386 | ||
387 | pos = skip_spaces (*arg); | |
388 | ||
389 | if (!isdigit (*pos)) | |
390 | error (_("Expected positive number, got: %s."), pos); | |
391 | ||
392 | return strtol (pos, arg, 10); | |
393 | } | |
394 | ||
395 | /* Complain about junk at the end of an argument string. */ | |
396 | ||
397 | static void | |
398 | no_chunk (char *arg) | |
399 | { | |
400 | if (*arg != 0) | |
401 | error (_("Junk after argument: %s."), arg); | |
402 | } | |
403 | ||
404 | /* Read instruction-history modifiers from an argument string. */ | |
405 | ||
406 | static int | |
407 | get_insn_history_modifiers (char **arg) | |
408 | { | |
409 | int modifiers; | |
410 | char *args; | |
411 | ||
412 | modifiers = 0; | |
413 | args = *arg; | |
414 | ||
415 | if (args == NULL) | |
416 | return modifiers; | |
417 | ||
418 | while (*args == '/') | |
419 | { | |
420 | ++args; | |
421 | ||
422 | if (*args == '\0') | |
423 | error (_("Missing modifier.")); | |
424 | ||
425 | for (; *args; ++args) | |
426 | { | |
427 | if (isspace (*args)) | |
428 | break; | |
429 | ||
430 | if (*args == '/') | |
431 | continue; | |
432 | ||
433 | switch (*args) | |
434 | { | |
435 | case 'm': | |
436 | modifiers |= DISASSEMBLY_SOURCE; | |
437 | modifiers |= DISASSEMBLY_FILENAME; | |
438 | break; | |
439 | case 'r': | |
440 | modifiers |= DISASSEMBLY_RAW_INSN; | |
441 | break; | |
442 | case 'f': | |
443 | modifiers |= DISASSEMBLY_OMIT_FNAME; | |
444 | break; | |
946287b7 MM |
445 | case 'p': |
446 | modifiers |= DISASSEMBLY_OMIT_PC; | |
447 | break; | |
67c86d06 MM |
448 | default: |
449 | error (_("Invalid modifier: %c."), *args); | |
450 | } | |
451 | } | |
452 | ||
453 | args = skip_spaces (args); | |
454 | } | |
455 | ||
456 | /* Update the argument string. */ | |
457 | *arg = args; | |
458 | ||
459 | return modifiers; | |
460 | } | |
461 | ||
42c634cb PA |
462 | /* The "set record instruction-history-size / set record |
463 | function-call-history-size" commands are unsigned, with UINT_MAX | |
464 | meaning unlimited. The target interfaces works with signed int | |
465 | though, to indicate direction, so map "unlimited" to INT_MAX, which | |
466 | is about the same as unlimited in practice. If the user does have | |
0ccfeeae MM |
467 | a log that huge, she can fetch it in chunks across several requests, |
468 | but she'll likely have other problems first... */ | |
42c634cb PA |
469 | |
470 | static int | |
0ccfeeae | 471 | command_size_to_target_size (unsigned int size) |
42c634cb | 472 | { |
0ccfeeae | 473 | gdb_assert (size <= INT_MAX || size == UINT_MAX); |
42c634cb | 474 | |
0ccfeeae | 475 | if (size == UINT_MAX) |
42c634cb PA |
476 | return INT_MAX; |
477 | else | |
0ccfeeae | 478 | return size; |
42c634cb PA |
479 | } |
480 | ||
67c86d06 MM |
481 | /* The "record instruction-history" command. */ |
482 | ||
483 | static void | |
484 | cmd_record_insn_history (char *arg, int from_tty) | |
485 | { | |
486 | int flags, size; | |
487 | ||
488 | require_record_target (); | |
489 | ||
490 | flags = get_insn_history_modifiers (&arg); | |
491 | ||
0ccfeeae | 492 | size = command_size_to_target_size (record_insn_history_size); |
67c86d06 MM |
493 | |
494 | if (arg == NULL || *arg == 0 || strcmp (arg, "+") == 0) | |
495 | target_insn_history (size, flags); | |
496 | else if (strcmp (arg, "-") == 0) | |
497 | target_insn_history (-size, flags); | |
498 | else | |
499 | { | |
500 | ULONGEST begin, end; | |
501 | ||
502 | begin = get_insn_number (&arg); | |
503 | ||
504 | if (*arg == ',') | |
505 | { | |
506 | arg = skip_spaces (++arg); | |
507 | ||
508 | if (*arg == '+') | |
509 | { | |
510 | arg += 1; | |
511 | size = get_context_size (&arg); | |
512 | ||
513 | no_chunk (arg); | |
514 | ||
515 | target_insn_history_from (begin, size, flags); | |
516 | } | |
517 | else if (*arg == '-') | |
518 | { | |
519 | arg += 1; | |
520 | size = get_context_size (&arg); | |
521 | ||
522 | no_chunk (arg); | |
523 | ||
524 | target_insn_history_from (begin, -size, flags); | |
525 | } | |
526 | else | |
527 | { | |
528 | end = get_insn_number (&arg); | |
529 | ||
530 | no_chunk (arg); | |
531 | ||
532 | target_insn_history_range (begin, end, flags); | |
533 | } | |
534 | } | |
535 | else | |
536 | { | |
537 | no_chunk (arg); | |
538 | ||
539 | target_insn_history_from (begin, size, flags); | |
540 | } | |
541 | ||
542 | dont_repeat (); | |
543 | } | |
544 | } | |
545 | ||
15984c13 MM |
546 | /* Read function-call-history modifiers from an argument string. */ |
547 | ||
548 | static int | |
549 | get_call_history_modifiers (char **arg) | |
550 | { | |
551 | int modifiers; | |
552 | char *args; | |
553 | ||
554 | modifiers = 0; | |
555 | args = *arg; | |
556 | ||
557 | if (args == NULL) | |
558 | return modifiers; | |
559 | ||
560 | while (*args == '/') | |
561 | { | |
562 | ++args; | |
563 | ||
564 | if (*args == '\0') | |
565 | error (_("Missing modifier.")); | |
566 | ||
567 | for (; *args; ++args) | |
568 | { | |
569 | if (isspace (*args)) | |
570 | break; | |
571 | ||
572 | if (*args == '/') | |
573 | continue; | |
574 | ||
575 | switch (*args) | |
576 | { | |
577 | case 'l': | |
1e038f67 | 578 | modifiers |= RECORD_PRINT_SRC_LINE; |
15984c13 MM |
579 | break; |
580 | case 'i': | |
1e038f67 | 581 | modifiers |= RECORD_PRINT_INSN_RANGE; |
15984c13 | 582 | break; |
8710b709 MM |
583 | case 'c': |
584 | modifiers |= RECORD_PRINT_INDENT_CALLS; | |
585 | break; | |
15984c13 MM |
586 | default: |
587 | error (_("Invalid modifier: %c."), *args); | |
588 | } | |
589 | } | |
590 | ||
591 | args = skip_spaces (args); | |
592 | } | |
593 | ||
594 | /* Update the argument string. */ | |
595 | *arg = args; | |
596 | ||
597 | return modifiers; | |
598 | } | |
599 | ||
600 | /* The "record function-call-history" command. */ | |
601 | ||
602 | static void | |
603 | cmd_record_call_history (char *arg, int from_tty) | |
604 | { | |
605 | int flags, size; | |
606 | ||
607 | require_record_target (); | |
608 | ||
609 | flags = get_call_history_modifiers (&arg); | |
610 | ||
0ccfeeae | 611 | size = command_size_to_target_size (record_call_history_size); |
15984c13 MM |
612 | |
613 | if (arg == NULL || *arg == 0 || strcmp (arg, "+") == 0) | |
614 | target_call_history (size, flags); | |
615 | else if (strcmp (arg, "-") == 0) | |
616 | target_call_history (-size, flags); | |
617 | else | |
618 | { | |
619 | ULONGEST begin, end; | |
620 | ||
621 | begin = get_insn_number (&arg); | |
622 | ||
623 | if (*arg == ',') | |
624 | { | |
625 | arg = skip_spaces (++arg); | |
626 | ||
627 | if (*arg == '+') | |
628 | { | |
629 | arg += 1; | |
630 | size = get_context_size (&arg); | |
631 | ||
632 | no_chunk (arg); | |
633 | ||
634 | target_call_history_from (begin, size, flags); | |
635 | } | |
636 | else if (*arg == '-') | |
637 | { | |
638 | arg += 1; | |
639 | size = get_context_size (&arg); | |
640 | ||
641 | no_chunk (arg); | |
642 | ||
643 | target_call_history_from (begin, -size, flags); | |
644 | } | |
645 | else | |
646 | { | |
647 | end = get_insn_number (&arg); | |
648 | ||
649 | no_chunk (arg); | |
650 | ||
651 | target_call_history_range (begin, end, flags); | |
652 | } | |
653 | } | |
654 | else | |
655 | { | |
656 | no_chunk (arg); | |
657 | ||
658 | target_call_history_from (begin, size, flags); | |
659 | } | |
660 | ||
661 | dont_repeat (); | |
662 | } | |
663 | } | |
664 | ||
42c634cb PA |
665 | /* Helper for "set record instruction-history-size" and "set record |
666 | function-call-history-size" input validation. COMMAND_VAR is the | |
667 | variable registered in the command as control variable. *SETTING | |
668 | is the real setting the command allows changing. */ | |
669 | ||
670 | static void | |
9c37696b | 671 | validate_history_size (unsigned int *command_var, unsigned int *setting) |
42c634cb PA |
672 | { |
673 | if (*command_var != UINT_MAX && *command_var > INT_MAX) | |
674 | { | |
675 | unsigned int new_value = *command_var; | |
676 | ||
677 | /* Restore previous value. */ | |
678 | *command_var = *setting; | |
679 | error (_("integer %u out of range"), new_value); | |
680 | } | |
681 | ||
682 | /* Commit new value. */ | |
683 | *setting = *command_var; | |
684 | } | |
685 | ||
686 | /* Called by do_setshow_command. We only want values in the | |
687 | [0..INT_MAX] range, while the command's machinery accepts | |
688 | [0..UINT_MAX]. See command_size_to_target_size. */ | |
689 | ||
690 | static void | |
691 | set_record_insn_history_size (char *args, int from_tty, | |
692 | struct cmd_list_element *c) | |
693 | { | |
694 | validate_history_size (&record_insn_history_size_setshow_var, | |
695 | &record_insn_history_size); | |
696 | } | |
697 | ||
698 | /* Called by do_setshow_command. We only want values in the | |
699 | [0..INT_MAX] range, while the command's machinery accepts | |
700 | [0..UINT_MAX]. See command_size_to_target_size. */ | |
701 | ||
702 | static void | |
703 | set_record_call_history_size (char *args, int from_tty, | |
704 | struct cmd_list_element *c) | |
705 | { | |
706 | validate_history_size (&record_call_history_size_setshow_var, | |
707 | &record_call_history_size); | |
708 | } | |
709 | ||
70221824 PA |
710 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
711 | extern initialize_file_ftype _initialize_record; | |
712 | ||
69d05d38 HZ |
713 | void |
714 | _initialize_record (void) | |
715 | { | |
0156b218 MS |
716 | struct cmd_list_element *c; |
717 | ||
ccce17b0 YQ |
718 | add_setshow_zuinteger_cmd ("record", no_class, &record_debug, |
719 | _("Set debugging of record/replay feature."), | |
720 | _("Show debugging of record/replay feature."), | |
721 | _("When enabled, debugging output for " | |
722 | "record/replay feature is displayed."), | |
723 | NULL, show_record_debug, &setdebuglist, | |
724 | &showdebuglist); | |
69d05d38 | 725 | |
67c86d06 | 726 | add_setshow_uinteger_cmd ("instruction-history-size", no_class, |
42c634cb | 727 | &record_insn_history_size_setshow_var, _("\ |
67c86d06 | 728 | Set number of instructions to print in \"record instruction-history\"."), _("\ |
f81d1120 PA |
729 | Show number of instructions to print in \"record instruction-history\"."), _("\ |
730 | A size of \"unlimited\" means unlimited instructions. The default is 10."), | |
42c634cb PA |
731 | set_record_insn_history_size, NULL, |
732 | &set_record_cmdlist, &show_record_cmdlist); | |
67c86d06 | 733 | |
15984c13 | 734 | add_setshow_uinteger_cmd ("function-call-history-size", no_class, |
42c634cb | 735 | &record_call_history_size_setshow_var, _("\ |
15984c13 | 736 | Set number of function to print in \"record function-call-history\"."), _("\ |
f81d1120 PA |
737 | Show number of functions to print in \"record function-call-history\"."), _("\ |
738 | A size of \"unlimited\" means unlimited lines. The default is 10."), | |
42c634cb PA |
739 | set_record_call_history_size, NULL, |
740 | &set_record_cmdlist, &show_record_cmdlist); | |
15984c13 | 741 | |
0156b218 | 742 | c = add_prefix_cmd ("record", class_obscure, cmd_record_start, |
d02ed0bb | 743 | _("Start recording."), |
0156b218 MS |
744 | &record_cmdlist, "record ", 0, &cmdlist); |
745 | set_cmd_completer (c, filename_completer); | |
746 | ||
69d05d38 HZ |
747 | add_com_alias ("rec", "record", class_obscure, 1); |
748 | add_prefix_cmd ("record", class_support, set_record_command, | |
749 | _("Set record options"), &set_record_cmdlist, | |
750 | "set record ", 0, &setlist); | |
751 | add_alias_cmd ("rec", "record", class_obscure, 1, &setlist); | |
752 | add_prefix_cmd ("record", class_support, show_record_command, | |
753 | _("Show record options"), &show_record_cmdlist, | |
754 | "show record ", 0, &showlist); | |
755 | add_alias_cmd ("rec", "record", class_obscure, 1, &showlist); | |
756 | add_prefix_cmd ("record", class_support, info_record_command, | |
757 | _("Info record options"), &info_record_cmdlist, | |
758 | "info record ", 0, &infolist); | |
759 | add_alias_cmd ("rec", "record", class_obscure, 1, &infolist); | |
760 | ||
0156b218 MS |
761 | c = add_cmd ("save", class_obscure, cmd_record_save, |
762 | _("Save the execution log to a file.\n\ | |
763 | Argument is optional filename.\n\ | |
764 | Default filename is 'gdb_record.<process_id>'."), | |
765 | &record_cmdlist); | |
766 | set_cmd_completer (c, filename_completer); | |
767 | ||
69d05d38 HZ |
768 | add_cmd ("delete", class_obscure, cmd_record_delete, |
769 | _("Delete the rest of execution log and start recording it anew."), | |
770 | &record_cmdlist); | |
771 | add_alias_cmd ("d", "delete", class_obscure, 1, &record_cmdlist); | |
772 | add_alias_cmd ("del", "delete", class_obscure, 1, &record_cmdlist); | |
773 | ||
774 | add_cmd ("stop", class_obscure, cmd_record_stop, | |
775 | _("Stop the record/replay target."), | |
776 | &record_cmdlist); | |
777 | add_alias_cmd ("s", "stop", class_obscure, 1, &record_cmdlist); | |
778 | ||
742ce053 | 779 | add_prefix_cmd ("goto", class_obscure, cmd_record_goto, _("\ |
6b04bdb7 MS |
780 | Restore the program to its state at instruction number N.\n\ |
781 | Argument is instruction number, as shown by 'info record'."), | |
742ce053 MM |
782 | &record_goto_cmdlist, "record goto ", 1, &record_cmdlist); |
783 | ||
784 | add_cmd ("begin", class_obscure, cmd_record_goto_begin, | |
785 | _("Go to the beginning of the execution log."), | |
786 | &record_goto_cmdlist); | |
787 | add_alias_cmd ("start", "begin", class_obscure, 1, &record_goto_cmdlist); | |
788 | ||
789 | add_cmd ("end", class_obscure, cmd_record_goto_end, | |
790 | _("Go to the end of the execution log."), | |
791 | &record_goto_cmdlist); | |
67c86d06 MM |
792 | |
793 | add_cmd ("instruction-history", class_obscure, cmd_record_insn_history, _("\ | |
794 | Print disassembled instructions stored in the execution log.\n\ | |
795 | With a /m modifier, source lines are included (if available).\n\ | |
796 | With a /r modifier, raw instructions in hex are included.\n\ | |
797 | With a /f modifier, function names are omitted.\n\ | |
946287b7 | 798 | With a /p modifier, current position markers are omitted.\n\ |
67c86d06 MM |
799 | With no argument, disassembles ten more instructions after the previous \ |
800 | disassembly.\n\ | |
801 | \"record instruction-history -\" disassembles ten instructions before a \ | |
802 | previous disassembly.\n\ | |
803 | One argument specifies an instruction number as shown by 'info record', and \ | |
804 | ten instructions are disassembled after that instruction.\n\ | |
805 | Two arguments with comma between them specify starting and ending instruction \ | |
806 | numbers to disassemble.\n\ | |
807 | If the second argument is preceded by '+' or '-', it specifies the distance \ | |
808 | from the first argument.\n\ | |
809 | The number of instructions to disassemble can be defined with \"set record \ | |
810 | instruction-history-size\"."), | |
811 | &record_cmdlist); | |
15984c13 MM |
812 | |
813 | add_cmd ("function-call-history", class_obscure, cmd_record_call_history, _("\ | |
814 | Prints the execution history at function granularity.\n\ | |
815 | It prints one line for each sequence of instructions that belong to the same \ | |
816 | function.\n\ | |
817 | Without modifiers, it prints the function name.\n\ | |
818 | With a /l modifier, the source file and line number range is included.\n\ | |
819 | With a /i modifier, the instruction number range is included.\n\ | |
8710b709 | 820 | With a /c modifier, the output is indented based on the call stack depth.\n\ |
15984c13 MM |
821 | With no argument, prints ten more lines after the previous ten-line print.\n\ |
822 | \"record function-call-history -\" prints ten lines before a previous ten-line \ | |
823 | print.\n\ | |
824 | One argument specifies a function number as shown by 'info record', and \ | |
825 | ten lines are printed after that function.\n\ | |
826 | Two arguments with comma between them specify a range of functions to print.\n\ | |
827 | If the second argument is preceded by '+' or '-', it specifies the distance \ | |
828 | from the first argument.\n\ | |
829 | The number of functions to print can be defined with \"set record \ | |
830 | function-call-history-size\"."), | |
831 | &record_cmdlist); | |
42c634cb PA |
832 | |
833 | /* Sync command control variables. */ | |
834 | record_insn_history_size_setshow_var = record_insn_history_size; | |
835 | record_call_history_size_setshow_var = record_call_history_size; | |
69d05d38 | 836 | } |