Commit | Line | Data |
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c906108c | 1 | /* Multi-process/thread control for GDB, the GNU debugger. |
8926118c | 2 | |
61baf725 | 3 | Copyright (C) 1986-2017 Free Software Foundation, Inc. |
8926118c | 4 | |
b6ba6518 | 5 | Contributed by Lynx Real-Time Systems, Inc. Los Gatos, CA. |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include "symtab.h" | |
24 | #include "frame.h" | |
25 | #include "inferior.h" | |
26 | #include "environ.h" | |
27 | #include "value.h" | |
28 | #include "target.h" | |
29 | #include "gdbthread.h" | |
30 | #include "command.h" | |
31 | #include "gdbcmd.h" | |
4e052eda | 32 | #include "regcache.h" |
5b7f31a4 | 33 | #include "gdb.h" |
02d27625 | 34 | #include "btrace.h" |
c906108c SS |
35 | |
36 | #include <ctype.h> | |
37 | #include <sys/types.h> | |
38 | #include <signal.h> | |
8b93c638 | 39 | #include "ui-out.h" |
683f2885 | 40 | #include "observer.h" |
d4fc5b1e | 41 | #include "annotate.h" |
94cc34af | 42 | #include "cli/cli-decode.h" |
60f98dde | 43 | #include "gdb_regex.h" |
aea5b279 | 44 | #include "cli/cli-utils.h" |
243a9253 | 45 | #include "thread-fsm.h" |
5d5658a1 | 46 | #include "tid-parse.h" |
c6609450 | 47 | #include <algorithm> |
f8cc3da6 | 48 | #include "common/gdb_optional.h" |
94cc34af | 49 | |
c378eb4e | 50 | /* Definition of struct thread_info exported to gdbthread.h. */ |
c906108c | 51 | |
c378eb4e | 52 | /* Prototypes for local functions. */ |
c906108c | 53 | |
e5ef252a | 54 | struct thread_info *thread_list = NULL; |
c906108c SS |
55 | static int highest_thread_num; |
56 | ||
b57bacec PA |
57 | /* True if any thread is, or may be executing. We need to track this |
58 | separately because until we fully sync the thread list, we won't | |
59 | know whether the target is fully stopped, even if we see stop | |
60 | events for all known threads, because any of those threads may have | |
61 | spawned new threads we haven't heard of yet. */ | |
62 | static int threads_executing; | |
63 | ||
a14ed312 KB |
64 | static void thread_apply_all_command (char *, int); |
65 | static int thread_alive (struct thread_info *); | |
66 | static void info_threads_command (char *, int); | |
67 | static void thread_apply_command (char *, int); | |
c906108c | 68 | |
c6609450 PA |
69 | /* RAII type used to increase / decrease the refcount of each thread |
70 | in a given list of threads. */ | |
054e8d9e | 71 | |
c6609450 | 72 | class scoped_inc_dec_ref |
054e8d9e | 73 | { |
c6609450 PA |
74 | public: |
75 | explicit scoped_inc_dec_ref (const std::vector<thread_info *> &thrds) | |
76 | : m_thrds (thrds) | |
77 | { | |
78 | for (thread_info *thr : m_thrds) | |
79 | thr->incref (); | |
80 | } | |
054e8d9e | 81 | |
c6609450 PA |
82 | ~scoped_inc_dec_ref () |
83 | { | |
84 | for (thread_info *thr : m_thrds) | |
85 | thr->decref (); | |
86 | } | |
87 | ||
88 | private: | |
89 | const std::vector<thread_info *> &m_thrds; | |
054e8d9e AA |
90 | }; |
91 | ||
92 | ||
a5321aa4 | 93 | struct thread_info* |
4e1c45ea | 94 | inferior_thread (void) |
8601f500 | 95 | { |
e09875d4 | 96 | struct thread_info *tp = find_thread_ptid (inferior_ptid); |
4e1c45ea PA |
97 | gdb_assert (tp); |
98 | return tp; | |
99 | } | |
8601f500 | 100 | |
5b834a0a PA |
101 | /* Delete the breakpoint pointed at by BP_P, if there's one. */ |
102 | ||
103 | static void | |
104 | delete_thread_breakpoint (struct breakpoint **bp_p) | |
4e1c45ea | 105 | { |
5b834a0a | 106 | if (*bp_p != NULL) |
8601f500 | 107 | { |
5b834a0a PA |
108 | delete_breakpoint (*bp_p); |
109 | *bp_p = NULL; | |
8601f500 MS |
110 | } |
111 | } | |
112 | ||
5b834a0a PA |
113 | void |
114 | delete_step_resume_breakpoint (struct thread_info *tp) | |
115 | { | |
116 | if (tp != NULL) | |
117 | delete_thread_breakpoint (&tp->control.step_resume_breakpoint); | |
118 | } | |
119 | ||
186c406b TT |
120 | void |
121 | delete_exception_resume_breakpoint (struct thread_info *tp) | |
122 | { | |
5b834a0a PA |
123 | if (tp != NULL) |
124 | delete_thread_breakpoint (&tp->control.exception_resume_breakpoint); | |
125 | } | |
126 | ||
34b7e8a6 PA |
127 | /* See gdbthread.h. */ |
128 | ||
129 | void | |
130 | delete_single_step_breakpoints (struct thread_info *tp) | |
131 | { | |
132 | if (tp != NULL) | |
133 | delete_thread_breakpoint (&tp->control.single_step_breakpoints); | |
134 | } | |
135 | ||
5b834a0a PA |
136 | /* Delete the breakpoint pointed at by BP_P at the next stop, if |
137 | there's one. */ | |
138 | ||
139 | static void | |
140 | delete_at_next_stop (struct breakpoint **bp) | |
141 | { | |
142 | if (*bp != NULL) | |
186c406b | 143 | { |
5b834a0a PA |
144 | (*bp)->disposition = disp_del_at_next_stop; |
145 | *bp = NULL; | |
186c406b TT |
146 | } |
147 | } | |
148 | ||
34b7e8a6 PA |
149 | /* See gdbthread.h. */ |
150 | ||
151 | int | |
152 | thread_has_single_step_breakpoints_set (struct thread_info *tp) | |
153 | { | |
154 | return tp->control.single_step_breakpoints != NULL; | |
155 | } | |
156 | ||
157 | /* See gdbthread.h. */ | |
158 | ||
159 | int | |
160 | thread_has_single_step_breakpoint_here (struct thread_info *tp, | |
161 | struct address_space *aspace, | |
162 | CORE_ADDR addr) | |
163 | { | |
164 | struct breakpoint *ss_bps = tp->control.single_step_breakpoints; | |
165 | ||
166 | return (ss_bps != NULL | |
167 | && breakpoint_has_location_inserted_here (ss_bps, aspace, addr)); | |
168 | } | |
169 | ||
243a9253 PA |
170 | /* See gdbthread.h. */ |
171 | ||
172 | void | |
173 | thread_cancel_execution_command (struct thread_info *thr) | |
174 | { | |
175 | if (thr->thread_fsm != NULL) | |
176 | { | |
8980e177 | 177 | thread_fsm_clean_up (thr->thread_fsm, thr); |
243a9253 PA |
178 | thread_fsm_delete (thr->thread_fsm); |
179 | thr->thread_fsm = NULL; | |
180 | } | |
181 | } | |
182 | ||
7c952b6d | 183 | static void |
4f8d22e3 | 184 | clear_thread_inferior_resources (struct thread_info *tp) |
7c952b6d ND |
185 | { |
186 | /* NOTE: this will take care of any left-over step_resume breakpoints, | |
4d8453a5 DJ |
187 | but not any user-specified thread-specific breakpoints. We can not |
188 | delete the breakpoint straight-off, because the inferior might not | |
189 | be stopped at the moment. */ | |
5b834a0a PA |
190 | delete_at_next_stop (&tp->control.step_resume_breakpoint); |
191 | delete_at_next_stop (&tp->control.exception_resume_breakpoint); | |
34b7e8a6 | 192 | delete_at_next_stop (&tp->control.single_step_breakpoints); |
186c406b | 193 | |
5d5658a1 | 194 | delete_longjmp_breakpoint_at_next_stop (tp->global_num); |
f59f708a | 195 | |
16c381f0 | 196 | bpstat_clear (&tp->control.stop_bpstat); |
95e54da7 | 197 | |
02d27625 MM |
198 | btrace_teardown (tp); |
199 | ||
243a9253 | 200 | thread_cancel_execution_command (tp); |
4f8d22e3 PA |
201 | } |
202 | ||
803bdfe4 YQ |
203 | /* Set the TP's state as exited. */ |
204 | ||
205 | static void | |
206 | set_thread_exited (thread_info *tp, int silent) | |
207 | { | |
208 | /* Dead threads don't need to step-over. Remove from queue. */ | |
209 | if (tp->step_over_next != NULL) | |
210 | thread_step_over_chain_remove (tp); | |
211 | ||
212 | if (tp->state != THREAD_EXITED) | |
213 | { | |
214 | observer_notify_thread_exit (tp, silent); | |
215 | ||
216 | /* Tag it as exited. */ | |
217 | tp->state = THREAD_EXITED; | |
218 | ||
219 | /* Clear breakpoints, etc. associated with this thread. */ | |
220 | clear_thread_inferior_resources (tp); | |
221 | } | |
222 | } | |
223 | ||
c906108c | 224 | void |
fba45db2 | 225 | init_thread_list (void) |
c906108c SS |
226 | { |
227 | struct thread_info *tp, *tpnext; | |
228 | ||
7c952b6d | 229 | highest_thread_num = 0; |
8ea051c5 | 230 | |
c906108c SS |
231 | if (!thread_list) |
232 | return; | |
233 | ||
234 | for (tp = thread_list; tp; tp = tpnext) | |
235 | { | |
236 | tpnext = tp->next; | |
803bdfe4 YQ |
237 | if (tp->deletable ()) |
238 | delete tp; | |
239 | else | |
240 | set_thread_exited (tp, 1); | |
c906108c SS |
241 | } |
242 | ||
243 | thread_list = NULL; | |
b57bacec | 244 | threads_executing = 0; |
c906108c SS |
245 | } |
246 | ||
5d5658a1 PA |
247 | /* Allocate a new thread of inferior INF with target id PTID and add |
248 | it to the thread list. */ | |
e58b0e63 PA |
249 | |
250 | static struct thread_info * | |
5d5658a1 | 251 | new_thread (struct inferior *inf, ptid_t ptid) |
e58b0e63 | 252 | { |
12316564 | 253 | thread_info *tp = new thread_info (inf, ptid); |
b05b1202 PA |
254 | |
255 | if (thread_list == NULL) | |
256 | thread_list = tp; | |
257 | else | |
258 | { | |
259 | struct thread_info *last; | |
260 | ||
261 | for (last = thread_list; last->next != NULL; last = last->next) | |
262 | ; | |
263 | last->next = tp; | |
264 | } | |
e58b0e63 | 265 | |
e58b0e63 PA |
266 | return tp; |
267 | } | |
268 | ||
0d06e24b | 269 | struct thread_info * |
93815fbf | 270 | add_thread_silent (ptid_t ptid) |
c906108c SS |
271 | { |
272 | struct thread_info *tp; | |
5d5658a1 PA |
273 | struct inferior *inf = find_inferior_ptid (ptid); |
274 | gdb_assert (inf != NULL); | |
c906108c | 275 | |
e09875d4 | 276 | tp = find_thread_ptid (ptid); |
4f8d22e3 PA |
277 | if (tp) |
278 | /* Found an old thread with the same id. It has to be dead, | |
279 | otherwise we wouldn't be adding a new thread with the same id. | |
280 | The OS is reusing this id --- delete it, and recreate a new | |
281 | one. */ | |
282 | { | |
283 | /* In addition to deleting the thread, if this is the current | |
dcf4fbde PA |
284 | thread, then we need to take care that delete_thread doesn't |
285 | really delete the thread if it is inferior_ptid. Create a | |
286 | new template thread in the list with an invalid ptid, switch | |
287 | to it, delete the original thread, reset the new thread's | |
288 | ptid, and switch to it. */ | |
4f8d22e3 | 289 | |
9295a5a9 | 290 | if (inferior_ptid == ptid) |
4f8d22e3 | 291 | { |
5d5658a1 | 292 | tp = new_thread (inf, null_ptid); |
dcf4fbde PA |
293 | |
294 | /* Make switch_to_thread not read from the thread. */ | |
30596231 | 295 | tp->state = THREAD_EXITED; |
c820c52a | 296 | switch_to_thread (null_ptid); |
4f8d22e3 PA |
297 | |
298 | /* Now we can delete it. */ | |
299 | delete_thread (ptid); | |
300 | ||
dcf4fbde | 301 | /* Now reset its ptid, and reswitch inferior_ptid to it. */ |
4f8d22e3 | 302 | tp->ptid = ptid; |
30596231 | 303 | tp->state = THREAD_STOPPED; |
4f8d22e3 PA |
304 | switch_to_thread (ptid); |
305 | ||
306 | observer_notify_new_thread (tp); | |
307 | ||
308 | /* All done. */ | |
309 | return tp; | |
310 | } | |
311 | else | |
312 | /* Just go ahead and delete it. */ | |
313 | delete_thread (ptid); | |
314 | } | |
315 | ||
5d5658a1 | 316 | tp = new_thread (inf, ptid); |
cfc01461 VP |
317 | observer_notify_new_thread (tp); |
318 | ||
0d06e24b | 319 | return tp; |
c906108c SS |
320 | } |
321 | ||
93815fbf | 322 | struct thread_info * |
fe978cb0 | 323 | add_thread_with_info (ptid_t ptid, struct private_thread_info *priv) |
93815fbf VP |
324 | { |
325 | struct thread_info *result = add_thread_silent (ptid); | |
326 | ||
fe978cb0 | 327 | result->priv = priv; |
17faa917 | 328 | |
93815fbf | 329 | if (print_thread_events) |
fd532e2e | 330 | printf_unfiltered (_("[New %s]\n"), target_pid_to_str (ptid)); |
d4fc5b1e NR |
331 | |
332 | annotate_new_thread (); | |
93815fbf VP |
333 | return result; |
334 | } | |
335 | ||
17faa917 DJ |
336 | struct thread_info * |
337 | add_thread (ptid_t ptid) | |
338 | { | |
339 | return add_thread_with_info (ptid, NULL); | |
340 | } | |
341 | ||
12316564 YQ |
342 | thread_info::thread_info (struct inferior *inf_, ptid_t ptid_) |
343 | : ptid (ptid_), inf (inf_) | |
344 | { | |
345 | gdb_assert (inf_ != NULL); | |
346 | ||
347 | this->global_num = ++highest_thread_num; | |
348 | this->per_inf_num = ++inf_->highest_thread_num; | |
349 | ||
350 | /* Nothing to follow yet. */ | |
351 | memset (&this->pending_follow, 0, sizeof (this->pending_follow)); | |
352 | this->pending_follow.kind = TARGET_WAITKIND_SPURIOUS; | |
353 | this->suspend.waitstatus.kind = TARGET_WAITKIND_IGNORE; | |
354 | } | |
355 | ||
356 | thread_info::~thread_info () | |
357 | { | |
358 | if (this->priv) | |
359 | { | |
360 | if (this->private_dtor) | |
361 | this->private_dtor (this->priv); | |
362 | else | |
363 | xfree (this->priv); | |
364 | } | |
365 | ||
366 | xfree (this->name); | |
367 | } | |
368 | ||
c2829269 PA |
369 | /* Add TP to the end of the step-over chain LIST_P. */ |
370 | ||
371 | static void | |
372 | step_over_chain_enqueue (struct thread_info **list_p, struct thread_info *tp) | |
373 | { | |
374 | gdb_assert (tp->step_over_next == NULL); | |
375 | gdb_assert (tp->step_over_prev == NULL); | |
376 | ||
377 | if (*list_p == NULL) | |
378 | { | |
379 | *list_p = tp; | |
380 | tp->step_over_prev = tp->step_over_next = tp; | |
381 | } | |
382 | else | |
383 | { | |
384 | struct thread_info *head = *list_p; | |
385 | struct thread_info *tail = head->step_over_prev; | |
386 | ||
387 | tp->step_over_prev = tail; | |
388 | tp->step_over_next = head; | |
389 | head->step_over_prev = tp; | |
390 | tail->step_over_next = tp; | |
391 | } | |
392 | } | |
393 | ||
394 | /* Remove TP from step-over chain LIST_P. */ | |
395 | ||
396 | static void | |
397 | step_over_chain_remove (struct thread_info **list_p, struct thread_info *tp) | |
398 | { | |
399 | gdb_assert (tp->step_over_next != NULL); | |
400 | gdb_assert (tp->step_over_prev != NULL); | |
401 | ||
402 | if (*list_p == tp) | |
403 | { | |
404 | if (tp == tp->step_over_next) | |
405 | *list_p = NULL; | |
406 | else | |
407 | *list_p = tp->step_over_next; | |
408 | } | |
409 | ||
410 | tp->step_over_prev->step_over_next = tp->step_over_next; | |
411 | tp->step_over_next->step_over_prev = tp->step_over_prev; | |
412 | tp->step_over_prev = tp->step_over_next = NULL; | |
413 | } | |
414 | ||
415 | /* See gdbthread.h. */ | |
416 | ||
417 | struct thread_info * | |
418 | thread_step_over_chain_next (struct thread_info *tp) | |
419 | { | |
420 | struct thread_info *next = tp->step_over_next; | |
421 | ||
422 | return (next == step_over_queue_head ? NULL : next); | |
423 | } | |
424 | ||
425 | /* See gdbthread.h. */ | |
426 | ||
427 | int | |
428 | thread_is_in_step_over_chain (struct thread_info *tp) | |
429 | { | |
430 | return (tp->step_over_next != NULL); | |
431 | } | |
432 | ||
433 | /* See gdbthread.h. */ | |
434 | ||
435 | void | |
436 | thread_step_over_chain_enqueue (struct thread_info *tp) | |
437 | { | |
438 | step_over_chain_enqueue (&step_over_queue_head, tp); | |
439 | } | |
440 | ||
441 | /* See gdbthread.h. */ | |
442 | ||
443 | void | |
444 | thread_step_over_chain_remove (struct thread_info *tp) | |
445 | { | |
446 | step_over_chain_remove (&step_over_queue_head, tp); | |
447 | } | |
448 | ||
5e0b29c1 PA |
449 | /* Delete thread PTID. If SILENT, don't notify the observer of this |
450 | exit. */ | |
451 | static void | |
452 | delete_thread_1 (ptid_t ptid, int silent) | |
c906108c SS |
453 | { |
454 | struct thread_info *tp, *tpprev; | |
455 | ||
456 | tpprev = NULL; | |
457 | ||
458 | for (tp = thread_list; tp; tpprev = tp, tp = tp->next) | |
9295a5a9 | 459 | if (tp->ptid == ptid) |
c906108c SS |
460 | break; |
461 | ||
462 | if (!tp) | |
463 | return; | |
464 | ||
803bdfe4 | 465 | set_thread_exited (tp, silent); |
c2829269 | 466 | |
803bdfe4 | 467 | if (!tp->deletable ()) |
8c25b497 | 468 | { |
4f8d22e3 PA |
469 | /* Will be really deleted some other time. */ |
470 | return; | |
471 | } | |
472 | ||
c906108c SS |
473 | if (tpprev) |
474 | tpprev->next = tp->next; | |
475 | else | |
476 | thread_list = tp->next; | |
477 | ||
12316564 | 478 | delete tp; |
c906108c SS |
479 | } |
480 | ||
4f8d22e3 PA |
481 | /* Delete thread PTID and notify of thread exit. If this is |
482 | inferior_ptid, don't actually delete it, but tag it as exited and | |
483 | do the notification. If PTID is the user selected thread, clear | |
484 | it. */ | |
5e0b29c1 PA |
485 | void |
486 | delete_thread (ptid_t ptid) | |
487 | { | |
488 | delete_thread_1 (ptid, 0 /* not silent */); | |
489 | } | |
490 | ||
491 | void | |
492 | delete_thread_silent (ptid_t ptid) | |
493 | { | |
494 | delete_thread_1 (ptid, 1 /* silent */); | |
495 | } | |
496 | ||
1e92afda | 497 | struct thread_info * |
5d5658a1 | 498 | find_thread_global_id (int global_id) |
c906108c SS |
499 | { |
500 | struct thread_info *tp; | |
501 | ||
502 | for (tp = thread_list; tp; tp = tp->next) | |
5d5658a1 PA |
503 | if (tp->global_num == global_id) |
504 | return tp; | |
505 | ||
506 | return NULL; | |
507 | } | |
508 | ||
509 | static struct thread_info * | |
510 | find_thread_id (struct inferior *inf, int thr_num) | |
511 | { | |
512 | struct thread_info *tp; | |
513 | ||
514 | for (tp = thread_list; tp; tp = tp->next) | |
515 | if (tp->inf == inf && tp->per_inf_num == thr_num) | |
c906108c SS |
516 | return tp; |
517 | ||
518 | return NULL; | |
519 | } | |
520 | ||
39f77062 | 521 | /* Find a thread_info by matching PTID. */ |
e04ee09e | 522 | |
0d06e24b | 523 | struct thread_info * |
e09875d4 | 524 | find_thread_ptid (ptid_t ptid) |
0d06e24b JM |
525 | { |
526 | struct thread_info *tp; | |
527 | ||
528 | for (tp = thread_list; tp; tp = tp->next) | |
9295a5a9 | 529 | if (tp->ptid == ptid) |
0d06e24b JM |
530 | return tp; |
531 | ||
532 | return NULL; | |
533 | } | |
534 | ||
e04ee09e KB |
535 | /* See gdbthread.h. */ |
536 | ||
537 | struct thread_info * | |
538 | find_thread_by_handle (struct value *thread_handle, struct inferior *inf) | |
539 | { | |
540 | return target_thread_handle_to_thread_info | |
541 | (value_contents_all (thread_handle), | |
542 | TYPE_LENGTH (value_type (thread_handle)), | |
543 | inf); | |
544 | } | |
545 | ||
0d06e24b JM |
546 | /* |
547 | * Thread iterator function. | |
548 | * | |
549 | * Calls a callback function once for each thread, so long as | |
550 | * the callback function returns false. If the callback function | |
551 | * returns true, the iteration will end and the current thread | |
ae0eee42 | 552 | * will be returned. This can be useful for implementing a |
0d06e24b JM |
553 | * search for a thread with arbitrary attributes, or for applying |
554 | * some operation to every thread. | |
555 | * | |
ae0eee42 | 556 | * FIXME: some of the existing functionality, such as |
0d06e24b JM |
557 | * "Thread apply all", might be rewritten using this functionality. |
558 | */ | |
559 | ||
560 | struct thread_info * | |
fd118b61 KB |
561 | iterate_over_threads (int (*callback) (struct thread_info *, void *), |
562 | void *data) | |
0d06e24b | 563 | { |
4f8d22e3 | 564 | struct thread_info *tp, *next; |
0d06e24b | 565 | |
4f8d22e3 PA |
566 | for (tp = thread_list; tp; tp = next) |
567 | { | |
568 | next = tp->next; | |
569 | if ((*callback) (tp, data)) | |
570 | return tp; | |
571 | } | |
0d06e24b JM |
572 | |
573 | return NULL; | |
574 | } | |
575 | ||
20874c92 VP |
576 | int |
577 | thread_count (void) | |
578 | { | |
579 | int result = 0; | |
580 | struct thread_info *tp; | |
581 | ||
582 | for (tp = thread_list; tp; tp = tp->next) | |
583 | ++result; | |
584 | ||
ae0eee42 | 585 | return result; |
20874c92 VP |
586 | } |
587 | ||
c6609450 PA |
588 | /* Return the number of non-exited threads in the thread list. */ |
589 | ||
590 | static int | |
591 | live_threads_count (void) | |
592 | { | |
593 | int result = 0; | |
594 | struct thread_info *tp; | |
595 | ||
596 | ALL_NON_EXITED_THREADS (tp) | |
597 | ++result; | |
598 | ||
599 | return result; | |
600 | } | |
601 | ||
c906108c | 602 | int |
5d5658a1 | 603 | valid_global_thread_id (int global_id) |
c906108c SS |
604 | { |
605 | struct thread_info *tp; | |
606 | ||
607 | for (tp = thread_list; tp; tp = tp->next) | |
5d5658a1 | 608 | if (tp->global_num == global_id) |
c906108c SS |
609 | return 1; |
610 | ||
611 | return 0; | |
612 | } | |
613 | ||
614 | int | |
5d5658a1 | 615 | ptid_to_global_thread_id (ptid_t ptid) |
c906108c SS |
616 | { |
617 | struct thread_info *tp; | |
618 | ||
619 | for (tp = thread_list; tp; tp = tp->next) | |
9295a5a9 | 620 | if (tp->ptid == ptid) |
5d5658a1 | 621 | return tp->global_num; |
c906108c SS |
622 | |
623 | return 0; | |
624 | } | |
625 | ||
39f77062 | 626 | ptid_t |
5d5658a1 | 627 | global_thread_id_to_ptid (int global_id) |
c906108c | 628 | { |
5d5658a1 | 629 | struct thread_info *thread = find_thread_global_id (global_id); |
5d502164 | 630 | |
c906108c | 631 | if (thread) |
39f77062 | 632 | return thread->ptid; |
c906108c | 633 | else |
5d5658a1 | 634 | return minus_one_ptid; |
c906108c SS |
635 | } |
636 | ||
637 | int | |
39f77062 | 638 | in_thread_list (ptid_t ptid) |
c906108c SS |
639 | { |
640 | struct thread_info *tp; | |
641 | ||
642 | for (tp = thread_list; tp; tp = tp->next) | |
9295a5a9 | 643 | if (tp->ptid == ptid) |
c906108c SS |
644 | return 1; |
645 | ||
c378eb4e | 646 | return 0; /* Never heard of 'im. */ |
c906108c | 647 | } |
8926118c | 648 | |
bad34192 PA |
649 | /* Finds the first thread of the inferior given by PID. If PID is -1, |
650 | return the first thread in the list. */ | |
651 | ||
652 | struct thread_info * | |
653 | first_thread_of_process (int pid) | |
654 | { | |
655 | struct thread_info *tp, *ret = NULL; | |
656 | ||
657 | for (tp = thread_list; tp; tp = tp->next) | |
658 | if (pid == -1 || ptid_get_pid (tp->ptid) == pid) | |
5d5658a1 | 659 | if (ret == NULL || tp->global_num < ret->global_num) |
bad34192 PA |
660 | ret = tp; |
661 | ||
662 | return ret; | |
663 | } | |
664 | ||
2277426b PA |
665 | struct thread_info * |
666 | any_thread_of_process (int pid) | |
667 | { | |
668 | struct thread_info *tp; | |
669 | ||
32990ada PA |
670 | gdb_assert (pid != 0); |
671 | ||
672 | /* Prefer the current thread. */ | |
673 | if (ptid_get_pid (inferior_ptid) == pid) | |
674 | return inferior_thread (); | |
675 | ||
676 | ALL_NON_EXITED_THREADS (tp) | |
2277426b PA |
677 | if (ptid_get_pid (tp->ptid) == pid) |
678 | return tp; | |
679 | ||
680 | return NULL; | |
681 | } | |
682 | ||
6c95b8df PA |
683 | struct thread_info * |
684 | any_live_thread_of_process (int pid) | |
685 | { | |
32990ada | 686 | struct thread_info *curr_tp = NULL; |
6c95b8df | 687 | struct thread_info *tp; |
9941e0c5 | 688 | struct thread_info *tp_executing = NULL; |
6c95b8df | 689 | |
32990ada PA |
690 | gdb_assert (pid != 0); |
691 | ||
692 | /* Prefer the current thread if it's not executing. */ | |
693 | if (ptid_get_pid (inferior_ptid) == pid) | |
694 | { | |
695 | /* If the current thread is dead, forget it. If it's not | |
696 | executing, use it. Otherwise, still choose it (below), but | |
697 | only if no other non-executing thread is found. */ | |
698 | curr_tp = inferior_thread (); | |
699 | if (curr_tp->state == THREAD_EXITED) | |
700 | curr_tp = NULL; | |
701 | else if (!curr_tp->executing) | |
702 | return curr_tp; | |
703 | } | |
704 | ||
705 | ALL_NON_EXITED_THREADS (tp) | |
706 | if (ptid_get_pid (tp->ptid) == pid) | |
6c95b8df | 707 | { |
32990ada | 708 | if (!tp->executing) |
6c95b8df | 709 | return tp; |
32990ada PA |
710 | |
711 | tp_executing = tp; | |
6c95b8df PA |
712 | } |
713 | ||
32990ada PA |
714 | /* If both the current thread and all live threads are executing, |
715 | prefer the current thread. */ | |
716 | if (curr_tp != NULL) | |
717 | return curr_tp; | |
718 | ||
719 | /* Otherwise, just return an executing thread, if any. */ | |
9941e0c5 | 720 | return tp_executing; |
6c95b8df PA |
721 | } |
722 | ||
8b93c638 | 723 | /* Print a list of thread ids currently known, and the total number of |
c378eb4e | 724 | threads. To be used from within catch_errors. */ |
6949171e JJ |
725 | static int |
726 | do_captured_list_thread_ids (struct ui_out *uiout, void *arg) | |
8b93c638 JM |
727 | { |
728 | struct thread_info *tp; | |
729 | int num = 0; | |
592375cd | 730 | int current_thread = -1; |
8b93c638 | 731 | |
dc146f7c | 732 | update_thread_list (); |
7990a578 | 733 | |
2e783024 TT |
734 | { |
735 | ui_out_emit_tuple tuple_emitter (uiout, "thread-ids"); | |
592375cd | 736 | |
2e783024 TT |
737 | for (tp = thread_list; tp; tp = tp->next) |
738 | { | |
739 | if (tp->state == THREAD_EXITED) | |
740 | continue; | |
592375cd | 741 | |
2e783024 TT |
742 | if (tp->ptid == inferior_ptid) |
743 | current_thread = tp->global_num; | |
8b93c638 | 744 | |
2e783024 TT |
745 | num++; |
746 | uiout->field_int ("thread-id", tp->global_num); | |
747 | } | |
748 | } | |
592375cd VP |
749 | |
750 | if (current_thread != -1) | |
112e8700 SM |
751 | uiout->field_int ("current-thread-id", current_thread); |
752 | uiout->field_int ("number-of-threads", num); | |
8b93c638 JM |
753 | return GDB_RC_OK; |
754 | } | |
755 | ||
756 | /* Official gdblib interface function to get a list of thread ids and | |
c378eb4e | 757 | the total number. */ |
8b93c638 | 758 | enum gdb_rc |
ce43223b | 759 | gdb_list_thread_ids (struct ui_out *uiout, char **error_message) |
8b93c638 | 760 | { |
b0b13bb4 DJ |
761 | if (catch_exceptions_with_msg (uiout, do_captured_list_thread_ids, NULL, |
762 | error_message, RETURN_MASK_ALL) < 0) | |
763 | return GDB_RC_FAIL; | |
764 | return GDB_RC_OK; | |
8b93c638 | 765 | } |
c906108c | 766 | |
c378eb4e | 767 | /* Return true if TP is an active thread. */ |
c906108c | 768 | static int |
fba45db2 | 769 | thread_alive (struct thread_info *tp) |
c906108c | 770 | { |
30596231 | 771 | if (tp->state == THREAD_EXITED) |
c906108c | 772 | return 0; |
39f77062 | 773 | if (!target_thread_alive (tp->ptid)) |
4f8d22e3 | 774 | return 0; |
c906108c SS |
775 | return 1; |
776 | } | |
777 | ||
e8032dde PA |
778 | /* See gdbthreads.h. */ |
779 | ||
780 | void | |
fba45db2 | 781 | prune_threads (void) |
c906108c | 782 | { |
8a06aea7 | 783 | struct thread_info *tp, *tmp; |
c906108c | 784 | |
8a06aea7 | 785 | ALL_THREADS_SAFE (tp, tmp) |
c906108c | 786 | { |
c906108c | 787 | if (!thread_alive (tp)) |
39f77062 | 788 | delete_thread (tp->ptid); |
c906108c SS |
789 | } |
790 | } | |
791 | ||
8a06aea7 PA |
792 | /* See gdbthreads.h. */ |
793 | ||
794 | void | |
795 | delete_exited_threads (void) | |
796 | { | |
797 | struct thread_info *tp, *tmp; | |
798 | ||
799 | ALL_THREADS_SAFE (tp, tmp) | |
800 | { | |
801 | if (tp->state == THREAD_EXITED) | |
802 | delete_thread (tp->ptid); | |
803 | } | |
804 | } | |
805 | ||
6c659fc2 SC |
806 | /* Disable storing stack temporaries for the thread whose id is |
807 | stored in DATA. */ | |
808 | ||
809 | static void | |
810 | disable_thread_stack_temporaries (void *data) | |
811 | { | |
19ba03f4 | 812 | ptid_t *pd = (ptid_t *) data; |
6c659fc2 SC |
813 | struct thread_info *tp = find_thread_ptid (*pd); |
814 | ||
815 | if (tp != NULL) | |
816 | { | |
817 | tp->stack_temporaries_enabled = 0; | |
818 | VEC_free (value_ptr, tp->stack_temporaries); | |
819 | } | |
820 | ||
821 | xfree (pd); | |
822 | } | |
823 | ||
824 | /* Enable storing stack temporaries for thread with id PTID and return a | |
825 | cleanup which can disable and clear the stack temporaries. */ | |
826 | ||
827 | struct cleanup * | |
828 | enable_thread_stack_temporaries (ptid_t ptid) | |
829 | { | |
830 | struct thread_info *tp = find_thread_ptid (ptid); | |
831 | ptid_t *data; | |
832 | struct cleanup *c; | |
833 | ||
834 | gdb_assert (tp != NULL); | |
835 | ||
836 | tp->stack_temporaries_enabled = 1; | |
837 | tp->stack_temporaries = NULL; | |
8d749320 | 838 | data = XNEW (ptid_t); |
6c659fc2 SC |
839 | *data = ptid; |
840 | c = make_cleanup (disable_thread_stack_temporaries, data); | |
841 | ||
842 | return c; | |
843 | } | |
844 | ||
845 | /* Return non-zero value if stack temporaies are enabled for the thread | |
846 | with id PTID. */ | |
847 | ||
848 | int | |
849 | thread_stack_temporaries_enabled_p (ptid_t ptid) | |
850 | { | |
851 | struct thread_info *tp = find_thread_ptid (ptid); | |
852 | ||
853 | if (tp == NULL) | |
854 | return 0; | |
855 | else | |
856 | return tp->stack_temporaries_enabled; | |
857 | } | |
858 | ||
859 | /* Push V on to the stack temporaries of the thread with id PTID. */ | |
860 | ||
861 | void | |
862 | push_thread_stack_temporary (ptid_t ptid, struct value *v) | |
863 | { | |
864 | struct thread_info *tp = find_thread_ptid (ptid); | |
865 | ||
866 | gdb_assert (tp != NULL && tp->stack_temporaries_enabled); | |
867 | VEC_safe_push (value_ptr, tp->stack_temporaries, v); | |
868 | } | |
869 | ||
870 | /* Return 1 if VAL is among the stack temporaries of the thread | |
871 | with id PTID. Return 0 otherwise. */ | |
872 | ||
873 | int | |
874 | value_in_thread_stack_temporaries (struct value *val, ptid_t ptid) | |
875 | { | |
876 | struct thread_info *tp = find_thread_ptid (ptid); | |
877 | ||
878 | gdb_assert (tp != NULL && tp->stack_temporaries_enabled); | |
879 | if (!VEC_empty (value_ptr, tp->stack_temporaries)) | |
880 | { | |
881 | struct value *v; | |
882 | int i; | |
883 | ||
884 | for (i = 0; VEC_iterate (value_ptr, tp->stack_temporaries, i, v); i++) | |
885 | if (v == val) | |
886 | return 1; | |
887 | } | |
888 | ||
889 | return 0; | |
890 | } | |
891 | ||
892 | /* Return the last of the stack temporaries for thread with id PTID. | |
893 | Return NULL if there are no stack temporaries for the thread. */ | |
894 | ||
895 | struct value * | |
896 | get_last_thread_stack_temporary (ptid_t ptid) | |
897 | { | |
898 | struct value *lastval = NULL; | |
899 | struct thread_info *tp = find_thread_ptid (ptid); | |
900 | ||
901 | gdb_assert (tp != NULL); | |
902 | if (!VEC_empty (value_ptr, tp->stack_temporaries)) | |
903 | lastval = VEC_last (value_ptr, tp->stack_temporaries); | |
904 | ||
905 | return lastval; | |
906 | } | |
907 | ||
5231c1fd PA |
908 | void |
909 | thread_change_ptid (ptid_t old_ptid, ptid_t new_ptid) | |
910 | { | |
82f73884 PA |
911 | struct inferior *inf; |
912 | struct thread_info *tp; | |
913 | ||
914 | /* It can happen that what we knew as the target inferior id | |
915 | changes. E.g, target remote may only discover the remote process | |
916 | pid after adding the inferior to GDB's list. */ | |
c9657e70 | 917 | inf = find_inferior_ptid (old_ptid); |
82f73884 PA |
918 | inf->pid = ptid_get_pid (new_ptid); |
919 | ||
e09875d4 | 920 | tp = find_thread_ptid (old_ptid); |
5231c1fd PA |
921 | tp->ptid = new_ptid; |
922 | ||
923 | observer_notify_thread_ptid_changed (old_ptid, new_ptid); | |
924 | } | |
925 | ||
372316f1 PA |
926 | /* See gdbthread.h. */ |
927 | ||
928 | void | |
929 | set_resumed (ptid_t ptid, int resumed) | |
930 | { | |
931 | struct thread_info *tp; | |
9295a5a9 | 932 | int all = ptid == minus_one_ptid; |
372316f1 PA |
933 | |
934 | if (all || ptid_is_pid (ptid)) | |
935 | { | |
936 | for (tp = thread_list; tp; tp = tp->next) | |
937 | if (all || ptid_get_pid (tp->ptid) == ptid_get_pid (ptid)) | |
938 | tp->resumed = resumed; | |
939 | } | |
940 | else | |
941 | { | |
942 | tp = find_thread_ptid (ptid); | |
943 | gdb_assert (tp != NULL); | |
944 | tp->resumed = resumed; | |
945 | } | |
946 | } | |
947 | ||
4d9d9d04 PA |
948 | /* Helper for set_running, that marks one thread either running or |
949 | stopped. */ | |
950 | ||
951 | static int | |
952 | set_running_thread (struct thread_info *tp, int running) | |
953 | { | |
954 | int started = 0; | |
955 | ||
956 | if (running && tp->state == THREAD_STOPPED) | |
957 | started = 1; | |
958 | tp->state = running ? THREAD_RUNNING : THREAD_STOPPED; | |
959 | ||
960 | if (!running) | |
961 | { | |
962 | /* If the thread is now marked stopped, remove it from | |
963 | the step-over queue, so that we don't try to resume | |
964 | it until the user wants it to. */ | |
965 | if (tp->step_over_next != NULL) | |
966 | thread_step_over_chain_remove (tp); | |
967 | } | |
968 | ||
969 | return started; | |
970 | } | |
971 | ||
e1ac3328 VP |
972 | void |
973 | set_running (ptid_t ptid, int running) | |
974 | { | |
975 | struct thread_info *tp; | |
9295a5a9 | 976 | int all = ptid == minus_one_ptid; |
4d9d9d04 | 977 | int any_started = 0; |
e1ac3328 | 978 | |
ae0eee42 PA |
979 | /* We try not to notify the observer if no thread has actually changed |
980 | the running state -- merely to reduce the number of messages to | |
e1ac3328 | 981 | frontend. Frontend is supposed to handle multiple *running just fine. */ |
d90e17a7 | 982 | if (all || ptid_is_pid (ptid)) |
e1ac3328 | 983 | { |
e1ac3328 | 984 | for (tp = thread_list; tp; tp = tp->next) |
d90e17a7 PA |
985 | if (all || ptid_get_pid (tp->ptid) == ptid_get_pid (ptid)) |
986 | { | |
30596231 | 987 | if (tp->state == THREAD_EXITED) |
d90e17a7 | 988 | continue; |
4d9d9d04 PA |
989 | |
990 | if (set_running_thread (tp, running)) | |
d90e17a7 | 991 | any_started = 1; |
d90e17a7 | 992 | } |
e1ac3328 VP |
993 | } |
994 | else | |
995 | { | |
e09875d4 | 996 | tp = find_thread_ptid (ptid); |
4d9d9d04 | 997 | gdb_assert (tp != NULL); |
30596231 | 998 | gdb_assert (tp->state != THREAD_EXITED); |
4d9d9d04 PA |
999 | if (set_running_thread (tp, running)) |
1000 | any_started = 1; | |
4f8d22e3 | 1001 | } |
4d9d9d04 PA |
1002 | if (any_started) |
1003 | observer_notify_target_resumed (ptid); | |
e1ac3328 VP |
1004 | } |
1005 | ||
4f8d22e3 PA |
1006 | static int |
1007 | is_thread_state (ptid_t ptid, enum thread_state state) | |
e1ac3328 VP |
1008 | { |
1009 | struct thread_info *tp; | |
1010 | ||
e09875d4 | 1011 | tp = find_thread_ptid (ptid); |
e1ac3328 | 1012 | gdb_assert (tp); |
30596231 | 1013 | return tp->state == state; |
4f8d22e3 PA |
1014 | } |
1015 | ||
1016 | int | |
1017 | is_stopped (ptid_t ptid) | |
1018 | { | |
4f8d22e3 PA |
1019 | return is_thread_state (ptid, THREAD_STOPPED); |
1020 | } | |
1021 | ||
1022 | int | |
1023 | is_exited (ptid_t ptid) | |
1024 | { | |
4f8d22e3 PA |
1025 | return is_thread_state (ptid, THREAD_EXITED); |
1026 | } | |
1027 | ||
1028 | int | |
1029 | is_running (ptid_t ptid) | |
1030 | { | |
4f8d22e3 | 1031 | return is_thread_state (ptid, THREAD_RUNNING); |
e1ac3328 VP |
1032 | } |
1033 | ||
8ea051c5 PA |
1034 | int |
1035 | is_executing (ptid_t ptid) | |
1036 | { | |
1037 | struct thread_info *tp; | |
1038 | ||
e09875d4 | 1039 | tp = find_thread_ptid (ptid); |
8ea051c5 | 1040 | gdb_assert (tp); |
30596231 | 1041 | return tp->executing; |
8ea051c5 PA |
1042 | } |
1043 | ||
1044 | void | |
1045 | set_executing (ptid_t ptid, int executing) | |
1046 | { | |
1047 | struct thread_info *tp; | |
9295a5a9 | 1048 | int all = ptid == minus_one_ptid; |
8ea051c5 | 1049 | |
d90e17a7 | 1050 | if (all || ptid_is_pid (ptid)) |
8ea051c5 PA |
1051 | { |
1052 | for (tp = thread_list; tp; tp = tp->next) | |
d90e17a7 | 1053 | if (all || ptid_get_pid (tp->ptid) == ptid_get_pid (ptid)) |
30596231 | 1054 | tp->executing = executing; |
8ea051c5 PA |
1055 | } |
1056 | else | |
1057 | { | |
e09875d4 | 1058 | tp = find_thread_ptid (ptid); |
8ea051c5 | 1059 | gdb_assert (tp); |
30596231 | 1060 | tp->executing = executing; |
8ea051c5 | 1061 | } |
b57bacec PA |
1062 | |
1063 | /* It only takes one running thread to spawn more threads.*/ | |
1064 | if (executing) | |
1065 | threads_executing = 1; | |
1066 | /* Only clear the flag if the caller is telling us everything is | |
1067 | stopped. */ | |
9295a5a9 | 1068 | else if (minus_one_ptid == ptid) |
b57bacec PA |
1069 | threads_executing = 0; |
1070 | } | |
1071 | ||
1072 | /* See gdbthread.h. */ | |
1073 | ||
1074 | int | |
1075 | threads_are_executing (void) | |
1076 | { | |
1077 | return threads_executing; | |
8ea051c5 PA |
1078 | } |
1079 | ||
252fbfc8 PA |
1080 | void |
1081 | set_stop_requested (ptid_t ptid, int stop) | |
1082 | { | |
1083 | struct thread_info *tp; | |
9295a5a9 | 1084 | int all = ptid == minus_one_ptid; |
252fbfc8 PA |
1085 | |
1086 | if (all || ptid_is_pid (ptid)) | |
1087 | { | |
1088 | for (tp = thread_list; tp; tp = tp->next) | |
1089 | if (all || ptid_get_pid (tp->ptid) == ptid_get_pid (ptid)) | |
1090 | tp->stop_requested = stop; | |
1091 | } | |
1092 | else | |
1093 | { | |
e09875d4 | 1094 | tp = find_thread_ptid (ptid); |
252fbfc8 PA |
1095 | gdb_assert (tp); |
1096 | tp->stop_requested = stop; | |
1097 | } | |
1098 | ||
1099 | /* Call the stop requested observer so other components of GDB can | |
1100 | react to this request. */ | |
1101 | if (stop) | |
1102 | observer_notify_thread_stop_requested (ptid); | |
1103 | } | |
1104 | ||
29f49a6a PA |
1105 | void |
1106 | finish_thread_state (ptid_t ptid) | |
1107 | { | |
1108 | struct thread_info *tp; | |
1109 | int all; | |
1110 | int any_started = 0; | |
1111 | ||
9295a5a9 | 1112 | all = ptid == minus_one_ptid; |
29f49a6a PA |
1113 | |
1114 | if (all || ptid_is_pid (ptid)) | |
1115 | { | |
1116 | for (tp = thread_list; tp; tp = tp->next) | |
1117 | { | |
ae0eee42 PA |
1118 | if (tp->state == THREAD_EXITED) |
1119 | continue; | |
29f49a6a PA |
1120 | if (all || ptid_get_pid (ptid) == ptid_get_pid (tp->ptid)) |
1121 | { | |
4d9d9d04 | 1122 | if (set_running_thread (tp, tp->executing)) |
29f49a6a | 1123 | any_started = 1; |
29f49a6a PA |
1124 | } |
1125 | } | |
1126 | } | |
1127 | else | |
1128 | { | |
e09875d4 | 1129 | tp = find_thread_ptid (ptid); |
29f49a6a | 1130 | gdb_assert (tp); |
30596231 | 1131 | if (tp->state != THREAD_EXITED) |
29f49a6a | 1132 | { |
4d9d9d04 | 1133 | if (set_running_thread (tp, tp->executing)) |
29f49a6a | 1134 | any_started = 1; |
29f49a6a PA |
1135 | } |
1136 | } | |
1137 | ||
1138 | if (any_started) | |
1139 | observer_notify_target_resumed (ptid); | |
1140 | } | |
1141 | ||
1142 | void | |
1143 | finish_thread_state_cleanup (void *arg) | |
1144 | { | |
19ba03f4 | 1145 | ptid_t *ptid_p = (ptid_t *) arg; |
29f49a6a PA |
1146 | |
1147 | gdb_assert (arg); | |
1148 | ||
1149 | finish_thread_state (*ptid_p); | |
1150 | } | |
1151 | ||
a911d87a PA |
1152 | /* See gdbthread.h. */ |
1153 | ||
1154 | void | |
1155 | validate_registers_access (void) | |
1156 | { | |
1157 | /* No selected thread, no registers. */ | |
9295a5a9 | 1158 | if (inferior_ptid == null_ptid) |
a911d87a PA |
1159 | error (_("No thread selected.")); |
1160 | ||
1161 | /* Don't try to read from a dead thread. */ | |
1162 | if (is_exited (inferior_ptid)) | |
1163 | error (_("The current thread has terminated")); | |
1164 | ||
1165 | /* ... or from a spinning thread. FIXME: This isn't actually fully | |
1166 | correct. It'll allow an user-requested access (e.g., "print $pc" | |
1167 | at the prompt) when a thread is not executing for some internal | |
1168 | reason, but is marked running from the user's perspective. E.g., | |
1169 | the thread is waiting for its turn in the step-over queue. */ | |
1170 | if (is_executing (inferior_ptid)) | |
1171 | error (_("Selected thread is running.")); | |
1172 | } | |
1173 | ||
cf77c34e MM |
1174 | /* See gdbthread.h. */ |
1175 | ||
1176 | bool | |
1177 | can_access_registers_ptid (ptid_t ptid) | |
1178 | { | |
1179 | /* No thread, no registers. */ | |
9295a5a9 | 1180 | if (ptid == null_ptid) |
cf77c34e MM |
1181 | return false; |
1182 | ||
1183 | /* Don't try to read from a dead thread. */ | |
1184 | if (is_exited (ptid)) | |
1185 | return false; | |
1186 | ||
1187 | /* ... or from a spinning thread. FIXME: see validate_registers_access. */ | |
1188 | if (is_executing (ptid)) | |
1189 | return false; | |
1190 | ||
1191 | return true; | |
1192 | } | |
1193 | ||
ce4c476a PA |
1194 | int |
1195 | pc_in_thread_step_range (CORE_ADDR pc, struct thread_info *thread) | |
1196 | { | |
1197 | return (pc >= thread->control.step_range_start | |
1198 | && pc < thread->control.step_range_end); | |
1199 | } | |
1200 | ||
5d5658a1 PA |
1201 | /* Helper for print_thread_info. Returns true if THR should be |
1202 | printed. If REQUESTED_THREADS, a list of GDB ids/ranges, is not | |
1203 | NULL, only print THR if its ID is included in the list. GLOBAL_IDS | |
1204 | is true if REQUESTED_THREADS is list of global IDs, false if a list | |
1205 | of per-inferior thread ids. If PID is not -1, only print THR if it | |
1206 | is a thread from the process PID. Otherwise, threads from all | |
1207 | attached PIDs are printed. If both REQUESTED_THREADS is not NULL | |
1208 | and PID is not -1, then the thread is printed if it belongs to the | |
1209 | specified process. Otherwise, an error is raised. */ | |
1210 | ||
1211 | static int | |
1212 | should_print_thread (const char *requested_threads, int default_inf_num, | |
1213 | int global_ids, int pid, struct thread_info *thr) | |
1214 | { | |
1215 | if (requested_threads != NULL && *requested_threads != '\0') | |
1216 | { | |
1217 | int in_list; | |
1218 | ||
1219 | if (global_ids) | |
1220 | in_list = number_is_in_list (requested_threads, thr->global_num); | |
1221 | else | |
1222 | in_list = tid_is_in_list (requested_threads, default_inf_num, | |
1223 | thr->inf->num, thr->per_inf_num); | |
1224 | if (!in_list) | |
1225 | return 0; | |
1226 | } | |
1227 | ||
1228 | if (pid != -1 && ptid_get_pid (thr->ptid) != pid) | |
1229 | { | |
1230 | if (requested_threads != NULL && *requested_threads != '\0') | |
1231 | error (_("Requested thread not found in requested process")); | |
1232 | return 0; | |
1233 | } | |
1234 | ||
1235 | if (thr->state == THREAD_EXITED) | |
1236 | return 0; | |
1237 | ||
1238 | return 1; | |
1239 | } | |
1240 | ||
1241 | /* Like print_thread_info, but in addition, GLOBAL_IDS indicates | |
1242 | whether REQUESTED_THREADS is a list of global or per-inferior | |
1243 | thread ids. */ | |
1244 | ||
1245 | static void | |
1246 | print_thread_info_1 (struct ui_out *uiout, char *requested_threads, | |
1247 | int global_ids, int pid, | |
1248 | int show_global_ids) | |
c906108c SS |
1249 | { |
1250 | struct thread_info *tp; | |
39f77062 | 1251 | ptid_t current_ptid; |
73ede765 | 1252 | const char *extra_info, *name, *target_id; |
5d5658a1 PA |
1253 | struct inferior *inf; |
1254 | int default_inf_num = current_inferior ()->num; | |
c906108c | 1255 | |
dc146f7c | 1256 | update_thread_list (); |
39f77062 | 1257 | current_ptid = inferior_ptid; |
4f8d22e3 | 1258 | |
f8cc3da6 TT |
1259 | { |
1260 | /* For backward compatibility, we make a list for MI. A table is | |
1261 | preferable for the CLI, though, because it shows table | |
1262 | headers. */ | |
1263 | gdb::optional<ui_out_emit_list> list_emitter; | |
1264 | gdb::optional<ui_out_emit_table> table_emitter; | |
1265 | ||
1266 | if (uiout->is_mi_like_p ()) | |
1267 | list_emitter.emplace (uiout, "threads"); | |
1268 | else | |
1269 | { | |
1270 | int n_threads = 0; | |
a7658b96 | 1271 | |
f8cc3da6 TT |
1272 | for (tp = thread_list; tp; tp = tp->next) |
1273 | { | |
1274 | if (!should_print_thread (requested_threads, default_inf_num, | |
1275 | global_ids, pid, tp)) | |
1276 | continue; | |
a7658b96 | 1277 | |
f8cc3da6 TT |
1278 | ++n_threads; |
1279 | } | |
a7658b96 | 1280 | |
f8cc3da6 TT |
1281 | if (n_threads == 0) |
1282 | { | |
1283 | if (requested_threads == NULL || *requested_threads == '\0') | |
1284 | uiout->message (_("No threads.\n")); | |
1285 | else | |
1286 | uiout->message (_("No threads match '%s'.\n"), | |
1287 | requested_threads); | |
1288 | return; | |
1289 | } | |
a7658b96 | 1290 | |
0d64823e | 1291 | table_emitter.emplace (uiout, show_global_ids ? 5 : 4, |
f8cc3da6 | 1292 | n_threads, "threads"); |
a7658b96 | 1293 | |
f8cc3da6 | 1294 | uiout->table_header (1, ui_left, "current", ""); |
0d64823e SM |
1295 | uiout->table_header (4, ui_left, "id-in-tg", "Id"); |
1296 | if (show_global_ids) | |
f8cc3da6 TT |
1297 | uiout->table_header (4, ui_left, "id", "GId"); |
1298 | uiout->table_header (17, ui_left, "target-id", "Target Id"); | |
1299 | uiout->table_header (1, ui_left, "frame", "Frame"); | |
1300 | uiout->table_body (); | |
1301 | } | |
a7658b96 | 1302 | |
f8cc3da6 | 1303 | /* We'll be switching threads temporarily. */ |
5ed8105e | 1304 | scoped_restore_current_thread restore_thread; |
8e8901c5 | 1305 | |
5ed8105e PA |
1306 | ALL_THREADS_BY_INFERIOR (inf, tp) |
1307 | { | |
1308 | int core; | |
4f8d22e3 | 1309 | |
5ed8105e PA |
1310 | if (!should_print_thread (requested_threads, default_inf_num, |
1311 | global_ids, pid, tp)) | |
1312 | continue; | |
8e8901c5 | 1313 | |
5ed8105e | 1314 | ui_out_emit_tuple tuple_emitter (uiout, NULL); |
c906108c | 1315 | |
5ed8105e PA |
1316 | if (!uiout->is_mi_like_p ()) |
1317 | { | |
1318 | if (tp->ptid == current_ptid) | |
1319 | uiout->field_string ("current", "*"); | |
1320 | else | |
1321 | uiout->field_skip ("current"); | |
5d5658a1 | 1322 | |
0d64823e SM |
1323 | uiout->field_string ("id-in-tg", print_thread_id (tp)); |
1324 | } | |
0d06e24b | 1325 | |
5ed8105e PA |
1326 | if (show_global_ids || uiout->is_mi_like_p ()) |
1327 | uiout->field_int ("id", tp->global_num); | |
4694da01 | 1328 | |
5ed8105e PA |
1329 | /* For the CLI, we stuff everything into the target-id field. |
1330 | This is a gross hack to make the output come out looking | |
1331 | correct. The underlying problem here is that ui-out has no | |
1332 | way to specify that a field's space allocation should be | |
1333 | shared by several fields. For MI, we do the right thing | |
1334 | instead. */ | |
4694da01 | 1335 | |
5ed8105e PA |
1336 | target_id = target_pid_to_str (tp->ptid); |
1337 | extra_info = target_extra_thread_info (tp); | |
1338 | name = tp->name ? tp->name : target_thread_name (tp); | |
4694da01 | 1339 | |
5ed8105e PA |
1340 | if (uiout->is_mi_like_p ()) |
1341 | { | |
1342 | uiout->field_string ("target-id", target_id); | |
1343 | if (extra_info) | |
1344 | uiout->field_string ("details", extra_info); | |
1345 | if (name) | |
1346 | uiout->field_string ("name", name); | |
1347 | } | |
1348 | else | |
1349 | { | |
7ffd83d7 | 1350 | std::string contents; |
5ed8105e PA |
1351 | |
1352 | if (extra_info && name) | |
7ffd83d7 TT |
1353 | contents = string_printf ("%s \"%s\" (%s)", target_id, |
1354 | name, extra_info); | |
5ed8105e | 1355 | else if (extra_info) |
7ffd83d7 | 1356 | contents = string_printf ("%s (%s)", target_id, extra_info); |
5ed8105e | 1357 | else if (name) |
7ffd83d7 | 1358 | contents = string_printf ("%s \"%s\"", target_id, name); |
5ed8105e | 1359 | else |
7ffd83d7 | 1360 | contents = target_id; |
5ed8105e | 1361 | |
7ffd83d7 | 1362 | uiout->field_string ("target-id", contents.c_str ()); |
5ed8105e | 1363 | } |
4f8d22e3 | 1364 | |
5ed8105e PA |
1365 | if (tp->state == THREAD_RUNNING) |
1366 | uiout->text ("(running)\n"); | |
1367 | else | |
1368 | { | |
1369 | /* The switch below puts us at the top of the stack (leaf | |
1370 | frame). */ | |
1371 | switch_to_thread (tp->ptid); | |
1372 | print_stack_frame (get_selected_frame (NULL), | |
1373 | /* For MI output, print frame level. */ | |
1374 | uiout->is_mi_like_p (), | |
1375 | LOCATION, 0); | |
1376 | } | |
8e8901c5 | 1377 | |
5ed8105e PA |
1378 | if (uiout->is_mi_like_p ()) |
1379 | { | |
1380 | const char *state = "stopped"; | |
5d502164 | 1381 | |
5ed8105e PA |
1382 | if (tp->state == THREAD_RUNNING) |
1383 | state = "running"; | |
1384 | uiout->field_string ("state", state); | |
1385 | } | |
90139f7d | 1386 | |
5ed8105e PA |
1387 | core = target_core_of_thread (tp->ptid); |
1388 | if (uiout->is_mi_like_p () && core != -1) | |
1389 | uiout->field_int ("core", core); | |
f8cc3da6 | 1390 | } |
c906108c | 1391 | |
5ed8105e | 1392 | /* This end scope restores the current thread and the frame |
f8cc3da6 TT |
1393 | selected before the "info threads" command, and it finishes the |
1394 | ui-out list or table. */ | |
5ed8105e PA |
1395 | } |
1396 | ||
aea5b279 | 1397 | if (pid == -1 && requested_threads == NULL) |
8e8901c5 | 1398 | { |
112e8700 | 1399 | if (uiout->is_mi_like_p () |
9295a5a9 | 1400 | && inferior_ptid != null_ptid) |
5d5658a1 PA |
1401 | { |
1402 | int num = ptid_to_global_thread_id (inferior_ptid); | |
1403 | ||
1404 | gdb_assert (num != 0); | |
112e8700 | 1405 | uiout->field_int ("current-thread-id", num); |
5d5658a1 | 1406 | } |
94cc34af | 1407 | |
9295a5a9 | 1408 | if (inferior_ptid != null_ptid && is_exited (inferior_ptid)) |
112e8700 | 1409 | uiout->message ("\n\ |
5d5658a1 PA |
1410 | The current thread <Thread ID %s> has terminated. See `help thread'.\n", |
1411 | print_thread_id (inferior_thread ())); | |
9295a5a9 | 1412 | else if (thread_list != NULL && inferior_ptid == null_ptid) |
112e8700 | 1413 | uiout->message ("\n\ |
d729566a | 1414 | No selected thread. See `help thread'.\n"); |
c906108c | 1415 | } |
c906108c SS |
1416 | } |
1417 | ||
5d5658a1 | 1418 | /* See gdbthread.h. */ |
8e8901c5 | 1419 | |
5d5658a1 PA |
1420 | void |
1421 | print_thread_info (struct ui_out *uiout, char *requested_threads, int pid) | |
1422 | { | |
1423 | print_thread_info_1 (uiout, requested_threads, 1, pid, 0); | |
1424 | } | |
1425 | ||
1426 | /* Implementation of the "info threads" command. | |
60f98dde MS |
1427 | |
1428 | Note: this has the drawback that it _really_ switches | |
ae0eee42 PA |
1429 | threads, which frees the frame cache. A no-side |
1430 | effects info-threads command would be nicer. */ | |
8e8901c5 VP |
1431 | |
1432 | static void | |
1433 | info_threads_command (char *arg, int from_tty) | |
1434 | { | |
c84f6bbf PA |
1435 | int show_global_ids = 0; |
1436 | ||
1437 | if (arg != NULL | |
1438 | && check_for_argument (&arg, "-gid", sizeof ("-gid") - 1)) | |
1439 | { | |
1440 | arg = skip_spaces (arg); | |
1441 | show_global_ids = 1; | |
1442 | } | |
1443 | ||
1444 | print_thread_info_1 (current_uiout, arg, 0, -1, show_global_ids); | |
8e8901c5 VP |
1445 | } |
1446 | ||
6efcd9a8 PA |
1447 | /* See gdbthread.h. */ |
1448 | ||
1449 | void | |
1450 | switch_to_thread_no_regs (struct thread_info *thread) | |
1451 | { | |
3a3fd0fd | 1452 | struct inferior *inf = thread->inf; |
6efcd9a8 | 1453 | |
6efcd9a8 PA |
1454 | set_current_program_space (inf->pspace); |
1455 | set_current_inferior (inf); | |
1456 | ||
1457 | inferior_ptid = thread->ptid; | |
1458 | stop_pc = ~(CORE_ADDR) 0; | |
1459 | } | |
1460 | ||
3a3fd0fd | 1461 | /* Switch to no thread selected. */ |
c906108c | 1462 | |
3a3fd0fd PA |
1463 | static void |
1464 | switch_to_no_thread () | |
c906108c | 1465 | { |
3a3fd0fd PA |
1466 | if (inferior_ptid == null_ptid) |
1467 | return; | |
6c95b8df | 1468 | |
3a3fd0fd PA |
1469 | inferior_ptid = null_ptid; |
1470 | reinit_frame_cache (); | |
1471 | stop_pc = ~(CORE_ADDR) 0; | |
1472 | } | |
1473 | ||
1474 | /* Switch from one thread to another. */ | |
6c95b8df | 1475 | |
3a3fd0fd PA |
1476 | static void |
1477 | switch_to_thread (thread_info *thr) | |
1478 | { | |
1479 | gdb_assert (thr != NULL); | |
1480 | ||
1481 | if (inferior_ptid == thr->ptid) | |
c906108c SS |
1482 | return; |
1483 | ||
3a3fd0fd PA |
1484 | switch_to_thread_no_regs (thr); |
1485 | ||
35f196d9 | 1486 | reinit_frame_cache (); |
94cc34af | 1487 | |
4f8d22e3 PA |
1488 | /* We don't check for is_stopped, because we're called at times |
1489 | while in the TARGET_RUNNING state, e.g., while handling an | |
1490 | internal event. */ | |
3a3fd0fd PA |
1491 | if (thr->state != THREAD_EXITED |
1492 | && !thr->executing) | |
1493 | stop_pc = regcache_read_pc (get_thread_regcache (thr->ptid)); | |
c906108c SS |
1494 | } |
1495 | ||
3a3fd0fd PA |
1496 | /* See gdbthread.h. */ |
1497 | ||
1498 | void | |
1499 | switch_to_thread (ptid_t ptid) | |
c906108c | 1500 | { |
3a3fd0fd PA |
1501 | if (ptid == null_ptid) |
1502 | switch_to_no_thread (); | |
1503 | else | |
1504 | switch_to_thread (find_thread_ptid (ptid)); | |
99b3d574 DP |
1505 | } |
1506 | ||
1507 | static void | |
4f8d22e3 | 1508 | restore_selected_frame (struct frame_id a_frame_id, int frame_level) |
99b3d574 | 1509 | { |
4f8d22e3 PA |
1510 | struct frame_info *frame = NULL; |
1511 | int count; | |
1512 | ||
eb8c0621 TT |
1513 | /* This means there was no selected frame. */ |
1514 | if (frame_level == -1) | |
1515 | { | |
1516 | select_frame (NULL); | |
1517 | return; | |
1518 | } | |
1519 | ||
4f8d22e3 PA |
1520 | gdb_assert (frame_level >= 0); |
1521 | ||
1522 | /* Restore by level first, check if the frame id is the same as | |
1523 | expected. If that fails, try restoring by frame id. If that | |
1524 | fails, nothing to do, just warn the user. */ | |
1525 | ||
1526 | count = frame_level; | |
1527 | frame = find_relative_frame (get_current_frame (), &count); | |
1528 | if (count == 0 | |
1529 | && frame != NULL | |
005ca36a JB |
1530 | /* The frame ids must match - either both valid or both outer_frame_id. |
1531 | The latter case is not failsafe, but since it's highly unlikely | |
4f8d22e3 PA |
1532 | the search by level finds the wrong frame, it's 99.9(9)% of |
1533 | the time (for all practical purposes) safe. */ | |
005ca36a | 1534 | && frame_id_eq (get_frame_id (frame), a_frame_id)) |
4f8d22e3 PA |
1535 | { |
1536 | /* Cool, all is fine. */ | |
1537 | select_frame (frame); | |
1538 | return; | |
1539 | } | |
99b3d574 | 1540 | |
4f8d22e3 PA |
1541 | frame = frame_find_by_id (a_frame_id); |
1542 | if (frame != NULL) | |
1543 | { | |
1544 | /* Cool, refound it. */ | |
1545 | select_frame (frame); | |
1546 | return; | |
1547 | } | |
99b3d574 | 1548 | |
0c501536 PA |
1549 | /* Nothing else to do, the frame layout really changed. Select the |
1550 | innermost stack frame. */ | |
1551 | select_frame (get_current_frame ()); | |
1552 | ||
1553 | /* Warn the user. */ | |
112e8700 | 1554 | if (frame_level > 0 && !current_uiout->is_mi_like_p ()) |
99b3d574 | 1555 | { |
3e43a32a | 1556 | warning (_("Couldn't restore frame #%d in " |
e0162910 | 1557 | "current thread. Bottom (innermost) frame selected:"), |
4f8d22e3 PA |
1558 | frame_level); |
1559 | /* For MI, we should probably have a notification about | |
1560 | current frame change. But this error is not very | |
1561 | likely, so don't bother for now. */ | |
08d72866 | 1562 | print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1); |
c906108c SS |
1563 | } |
1564 | } | |
1565 | ||
5ed8105e | 1566 | scoped_restore_current_thread::~scoped_restore_current_thread () |
6ecce94d | 1567 | { |
803bdfe4 YQ |
1568 | /* If an entry of thread_info was previously selected, it won't be |
1569 | deleted because we've increased its refcount. The thread represented | |
1570 | by this thread_info entry may have already exited (due to normal exit, | |
1571 | detach, etc), so the thread_info.state is THREAD_EXITED. */ | |
5ed8105e | 1572 | if (m_thread != NULL |
803bdfe4 YQ |
1573 | /* If the previously selected thread belonged to a process that has |
1574 | in the mean time exited (or killed, detached, etc.), then don't revert | |
1575 | back to it, but instead simply drop back to no thread selected. */ | |
5ed8105e PA |
1576 | && m_inf->pid != 0) |
1577 | switch_to_thread (m_thread); | |
88fc996f | 1578 | else |
6c95b8df | 1579 | { |
3a3fd0fd | 1580 | switch_to_no_thread (); |
5ed8105e | 1581 | set_current_inferior (m_inf); |
6c95b8df | 1582 | } |
94cc34af | 1583 | |
4f8d22e3 PA |
1584 | /* The running state of the originally selected thread may have |
1585 | changed, so we have to recheck it here. */ | |
9295a5a9 | 1586 | if (inferior_ptid != null_ptid |
5ed8105e | 1587 | && m_was_stopped |
4f8d22e3 PA |
1588 | && is_stopped (inferior_ptid) |
1589 | && target_has_registers | |
1590 | && target_has_stack | |
1591 | && target_has_memory) | |
5ed8105e | 1592 | restore_selected_frame (m_selected_frame_id, m_selected_frame_level); |
5d502164 | 1593 | |
5ed8105e PA |
1594 | if (m_thread != NULL) |
1595 | m_thread->decref (); | |
1596 | m_inf->decref (); | |
6ecce94d AC |
1597 | } |
1598 | ||
5ed8105e | 1599 | scoped_restore_current_thread::scoped_restore_current_thread () |
6ecce94d | 1600 | { |
5ed8105e PA |
1601 | m_thread = NULL; |
1602 | m_inf = current_inferior (); | |
4f8d22e3 | 1603 | |
9295a5a9 | 1604 | if (inferior_ptid != null_ptid) |
d729566a | 1605 | { |
f6223dbb | 1606 | thread_info *tp = find_thread_ptid (inferior_ptid); |
12316564 YQ |
1607 | struct frame_info *frame; |
1608 | ||
f6223dbb PA |
1609 | gdb_assert (tp != NULL); |
1610 | ||
5ed8105e PA |
1611 | m_was_stopped = tp->state == THREAD_STOPPED; |
1612 | if (m_was_stopped | |
d729566a PA |
1613 | && target_has_registers |
1614 | && target_has_stack | |
1615 | && target_has_memory) | |
eb8c0621 TT |
1616 | { |
1617 | /* When processing internal events, there might not be a | |
1618 | selected frame. If we naively call get_selected_frame | |
1619 | here, then we can end up reading debuginfo for the | |
1620 | current frame, but we don't generally need the debuginfo | |
1621 | at this point. */ | |
1622 | frame = get_selected_frame_if_set (); | |
1623 | } | |
d729566a PA |
1624 | else |
1625 | frame = NULL; | |
4f8d22e3 | 1626 | |
5ed8105e PA |
1627 | m_selected_frame_id = get_frame_id (frame); |
1628 | m_selected_frame_level = frame_relative_level (frame); | |
d729566a | 1629 | |
f6223dbb | 1630 | tp->incref (); |
5ed8105e | 1631 | m_thread = tp; |
d729566a | 1632 | } |
4f8d22e3 | 1633 | |
5ed8105e | 1634 | m_inf->incref (); |
6ecce94d AC |
1635 | } |
1636 | ||
43792cf0 PA |
1637 | /* See gdbthread.h. */ |
1638 | ||
f303dbd6 PA |
1639 | int |
1640 | show_thread_that_caused_stop (void) | |
1641 | { | |
1642 | return highest_thread_num > 1; | |
1643 | } | |
1644 | ||
1645 | /* See gdbthread.h. */ | |
1646 | ||
5d5658a1 PA |
1647 | int |
1648 | show_inferior_qualified_tids (void) | |
1649 | { | |
1650 | return (inferior_list->next != NULL || inferior_list->num != 1); | |
1651 | } | |
1652 | ||
1653 | /* See gdbthread.h. */ | |
1654 | ||
43792cf0 PA |
1655 | const char * |
1656 | print_thread_id (struct thread_info *thr) | |
1657 | { | |
1658 | char *s = get_print_cell (); | |
1659 | ||
5d5658a1 PA |
1660 | if (show_inferior_qualified_tids ()) |
1661 | xsnprintf (s, PRINT_CELL_SIZE, "%d.%d", thr->inf->num, thr->per_inf_num); | |
1662 | else | |
1663 | xsnprintf (s, PRINT_CELL_SIZE, "%d", thr->per_inf_num); | |
43792cf0 PA |
1664 | return s; |
1665 | } | |
1666 | ||
c6609450 PA |
1667 | /* If true, tp_array_compar should sort in ascending order, otherwise |
1668 | in descending order. */ | |
253828f1 | 1669 | |
c6609450 | 1670 | static bool tp_array_compar_ascending; |
253828f1 | 1671 | |
5d5658a1 PA |
1672 | /* Sort an array for struct thread_info pointers by thread ID (first |
1673 | by inferior number, and then by per-inferior thread number). The | |
1674 | order is determined by TP_ARRAY_COMPAR_ASCENDING. */ | |
253828f1 | 1675 | |
c6609450 PA |
1676 | static bool |
1677 | tp_array_compar (const thread_info *a, const thread_info *b) | |
253828f1 | 1678 | { |
5d5658a1 PA |
1679 | if (a->inf->num != b->inf->num) |
1680 | { | |
c6609450 PA |
1681 | if (tp_array_compar_ascending) |
1682 | return a->inf->num < b->inf->num; | |
1683 | else | |
1684 | return a->inf->num > b->inf->num; | |
5d5658a1 | 1685 | } |
253828f1 | 1686 | |
c6609450 PA |
1687 | if (tp_array_compar_ascending) |
1688 | return (a->per_inf_num < b->per_inf_num); | |
1689 | else | |
1690 | return (a->per_inf_num > b->per_inf_num); | |
253828f1 JK |
1691 | } |
1692 | ||
c906108c SS |
1693 | /* Apply a GDB command to a list of threads. List syntax is a whitespace |
1694 | seperated list of numbers, or ranges, or the keyword `all'. Ranges consist | |
1695 | of two numbers seperated by a hyphen. Examples: | |
1696 | ||
c5aa993b JM |
1697 | thread apply 1 2 7 4 backtrace Apply backtrace cmd to threads 1,2,7,4 |
1698 | thread apply 2-7 9 p foo(1) Apply p foo(1) cmd to threads 2->7 & 9 | |
c378eb4e | 1699 | thread apply all p x/i $pc Apply x/i $pc cmd to all threads. */ |
c906108c SS |
1700 | |
1701 | static void | |
fba45db2 | 1702 | thread_apply_all_command (char *cmd, int from_tty) |
c906108c | 1703 | { |
c6609450 | 1704 | tp_array_compar_ascending = false; |
253828f1 JK |
1705 | if (cmd != NULL |
1706 | && check_for_argument (&cmd, "-ascending", strlen ("-ascending"))) | |
1707 | { | |
1708 | cmd = skip_spaces (cmd); | |
c6609450 | 1709 | tp_array_compar_ascending = true; |
253828f1 JK |
1710 | } |
1711 | ||
c906108c | 1712 | if (cmd == NULL || *cmd == '\000') |
8a3fe4f8 | 1713 | error (_("Please specify a command following the thread ID list")); |
94cc34af | 1714 | |
dc146f7c | 1715 | update_thread_list (); |
e9d196c5 | 1716 | |
e35ce267 | 1717 | /* Save a copy of the command in case it is clobbered by |
c378eb4e | 1718 | execute_command. */ |
7ffd83d7 | 1719 | std::string saved_cmd = cmd; |
94cc34af | 1720 | |
c6609450 | 1721 | int tc = live_threads_count (); |
a25d8bf9 | 1722 | if (tc != 0) |
054e8d9e | 1723 | { |
c6609450 PA |
1724 | /* Save a copy of the thread list and increment each thread's |
1725 | refcount while executing the command in the context of each | |
1726 | thread, in case the command is one that wipes threads. E.g., | |
1727 | detach, kill, disconnect, etc., or even normally continuing | |
1728 | over an inferior or thread exit. */ | |
1729 | std::vector<thread_info *> thr_list_cpy; | |
1730 | thr_list_cpy.reserve (tc); | |
054e8d9e | 1731 | |
c6609450 PA |
1732 | { |
1733 | thread_info *tp; | |
054e8d9e | 1734 | |
c6609450 PA |
1735 | ALL_NON_EXITED_THREADS (tp) |
1736 | { | |
1737 | thr_list_cpy.push_back (tp); | |
1738 | } | |
1739 | ||
1740 | gdb_assert (thr_list_cpy.size () == tc); | |
1741 | } | |
054e8d9e | 1742 | |
c6609450 PA |
1743 | /* Increment the refcounts, and restore them back on scope |
1744 | exit. */ | |
1745 | scoped_inc_dec_ref inc_dec_ref (thr_list_cpy); | |
253828f1 | 1746 | |
c6609450 | 1747 | std::sort (thr_list_cpy.begin (), thr_list_cpy.end (), tp_array_compar); |
054e8d9e | 1748 | |
5ed8105e PA |
1749 | scoped_restore_current_thread restore_thread; |
1750 | ||
c6609450 PA |
1751 | for (thread_info *thr : thr_list_cpy) |
1752 | if (thread_alive (thr)) | |
ae0eee42 | 1753 | { |
c6609450 | 1754 | switch_to_thread (thr->ptid); |
ae0eee42 | 1755 | printf_filtered (_("\nThread %s (%s):\n"), |
c6609450 | 1756 | print_thread_id (thr), |
054e8d9e | 1757 | target_pid_to_str (inferior_ptid)); |
ae0eee42 | 1758 | execute_command (cmd, from_tty); |
054e8d9e | 1759 | |
ae0eee42 | 1760 | /* Restore exact command used previously. */ |
7ffd83d7 | 1761 | strcpy (cmd, saved_cmd.c_str ()); |
054e8d9e AA |
1762 | } |
1763 | } | |
c906108c SS |
1764 | } |
1765 | ||
43792cf0 PA |
1766 | /* Implementation of the "thread apply" command. */ |
1767 | ||
c906108c | 1768 | static void |
fba45db2 | 1769 | thread_apply_command (char *tidlist, int from_tty) |
c906108c | 1770 | { |
3f5b7598 | 1771 | char *cmd = NULL; |
bfd28288 | 1772 | tid_range_parser parser; |
c906108c SS |
1773 | |
1774 | if (tidlist == NULL || *tidlist == '\000') | |
8a3fe4f8 | 1775 | error (_("Please specify a thread ID list")); |
c906108c | 1776 | |
bfd28288 PA |
1777 | parser.init (tidlist, current_inferior ()->num); |
1778 | while (!parser.finished ()) | |
3f5b7598 PA |
1779 | { |
1780 | int inf_num, thr_start, thr_end; | |
c906108c | 1781 | |
bfd28288 | 1782 | if (!parser.get_tid_range (&inf_num, &thr_start, &thr_end)) |
3f5b7598 | 1783 | { |
bfd28288 | 1784 | cmd = (char *) parser.cur_tok (); |
3f5b7598 PA |
1785 | break; |
1786 | } | |
1787 | } | |
1788 | ||
1789 | if (cmd == NULL) | |
8a3fe4f8 | 1790 | error (_("Please specify a command following the thread ID list")); |
c906108c | 1791 | |
3f5b7598 PA |
1792 | if (tidlist == cmd || !isalpha (cmd[0])) |
1793 | invalid_thread_id_error (cmd); | |
1794 | ||
e35ce267 | 1795 | /* Save a copy of the command in case it is clobbered by |
c378eb4e | 1796 | execute_command. */ |
7ffd83d7 | 1797 | std::string saved_cmd = cmd; |
197f0a60 | 1798 | |
5ed8105e | 1799 | scoped_restore_current_thread restore_thread; |
c906108c | 1800 | |
bfd28288 PA |
1801 | parser.init (tidlist, current_inferior ()->num); |
1802 | while (!parser.finished () && parser.cur_tok () < cmd) | |
5d5658a1 PA |
1803 | { |
1804 | struct thread_info *tp = NULL; | |
1805 | struct inferior *inf; | |
1806 | int inf_num, thr_num; | |
65fc9b77 | 1807 | |
bfd28288 | 1808 | parser.get_tid (&inf_num, &thr_num); |
5d5658a1 PA |
1809 | inf = find_inferior_id (inf_num); |
1810 | if (inf != NULL) | |
1811 | tp = find_thread_id (inf, thr_num); | |
71ef29a8 | 1812 | |
bfd28288 | 1813 | if (parser.in_star_range ()) |
71ef29a8 PA |
1814 | { |
1815 | if (inf == NULL) | |
1816 | { | |
1817 | warning (_("Unknown inferior %d"), inf_num); | |
bfd28288 | 1818 | parser.skip_range (); |
71ef29a8 PA |
1819 | continue; |
1820 | } | |
1821 | ||
1822 | /* No use looking for threads past the highest thread number | |
1823 | the inferior ever had. */ | |
1824 | if (thr_num >= inf->highest_thread_num) | |
bfd28288 | 1825 | parser.skip_range (); |
71ef29a8 PA |
1826 | |
1827 | /* Be quiet about unknown threads numbers. */ | |
1828 | if (tp == NULL) | |
1829 | continue; | |
1830 | } | |
1831 | ||
5d5658a1 PA |
1832 | if (tp == NULL) |
1833 | { | |
bfd28288 | 1834 | if (show_inferior_qualified_tids () || parser.tid_is_qualified ()) |
5d5658a1 PA |
1835 | warning (_("Unknown thread %d.%d"), inf_num, thr_num); |
1836 | else | |
1837 | warning (_("Unknown thread %d"), thr_num); | |
1838 | continue; | |
1839 | } | |
c906108c | 1840 | |
5d5658a1 | 1841 | if (!thread_alive (tp)) |
65ebfb52 | 1842 | { |
5d5658a1 PA |
1843 | warning (_("Thread %s has terminated."), print_thread_id (tp)); |
1844 | continue; | |
1845 | } | |
4f8d22e3 | 1846 | |
5d5658a1 | 1847 | switch_to_thread (tp->ptid); |
4f8d22e3 | 1848 | |
5d5658a1 PA |
1849 | printf_filtered (_("\nThread %s (%s):\n"), print_thread_id (tp), |
1850 | target_pid_to_str (inferior_ptid)); | |
1851 | execute_command (cmd, from_tty); | |
1852 | ||
1853 | /* Restore exact command used previously. */ | |
7ffd83d7 | 1854 | strcpy (cmd, saved_cmd.c_str ()); |
c906108c SS |
1855 | } |
1856 | } | |
1857 | ||
1858 | /* Switch to the specified thread. Will dispatch off to thread_apply_command | |
1859 | if prefix of arg is `apply'. */ | |
1860 | ||
f0e8c4c5 | 1861 | void |
fba45db2 | 1862 | thread_command (char *tidstr, int from_tty) |
c906108c | 1863 | { |
4034d0ff | 1864 | if (tidstr == NULL) |
c906108c | 1865 | { |
9295a5a9 | 1866 | if (inferior_ptid == null_ptid) |
d729566a PA |
1867 | error (_("No thread selected")); |
1868 | ||
c906108c | 1869 | if (target_has_stack) |
4f8d22e3 | 1870 | { |
43792cf0 PA |
1871 | struct thread_info *tp = inferior_thread (); |
1872 | ||
4f8d22e3 | 1873 | if (is_exited (inferior_ptid)) |
43792cf0 PA |
1874 | printf_filtered (_("[Current thread is %s (%s) (exited)]\n"), |
1875 | print_thread_id (tp), | |
54ba13f7 | 1876 | target_pid_to_str (inferior_ptid)); |
4f8d22e3 | 1877 | else |
43792cf0 PA |
1878 | printf_filtered (_("[Current thread is %s (%s)]\n"), |
1879 | print_thread_id (tp), | |
54ba13f7 | 1880 | target_pid_to_str (inferior_ptid)); |
4f8d22e3 | 1881 | } |
c906108c | 1882 | else |
8a3fe4f8 | 1883 | error (_("No stack.")); |
c906108c | 1884 | } |
4034d0ff AT |
1885 | else |
1886 | { | |
1887 | ptid_t previous_ptid = inferior_ptid; | |
1888 | enum gdb_rc result; | |
1889 | ||
1890 | result = gdb_thread_select (current_uiout, tidstr, NULL); | |
1891 | ||
1892 | /* If thread switch did not succeed don't notify or print. */ | |
1893 | if (result == GDB_RC_FAIL) | |
1894 | return; | |
c5394b80 | 1895 | |
ae0eee42 PA |
1896 | /* Print if the thread has not changed, otherwise an event will |
1897 | be sent. */ | |
9295a5a9 | 1898 | if (inferior_ptid == previous_ptid) |
4034d0ff AT |
1899 | { |
1900 | print_selected_thread_frame (current_uiout, | |
1901 | USER_SELECTED_THREAD | |
1902 | | USER_SELECTED_FRAME); | |
1903 | } | |
1904 | else | |
1905 | { | |
1906 | observer_notify_user_selected_context_changed (USER_SELECTED_THREAD | |
1907 | | USER_SELECTED_FRAME); | |
1908 | } | |
1909 | } | |
c5394b80 JM |
1910 | } |
1911 | ||
4694da01 TT |
1912 | /* Implementation of `thread name'. */ |
1913 | ||
1914 | static void | |
1915 | thread_name_command (char *arg, int from_tty) | |
1916 | { | |
1917 | struct thread_info *info; | |
1918 | ||
9295a5a9 | 1919 | if (inferior_ptid == null_ptid) |
4694da01 TT |
1920 | error (_("No thread selected")); |
1921 | ||
529480d0 | 1922 | arg = skip_spaces (arg); |
4694da01 TT |
1923 | |
1924 | info = inferior_thread (); | |
1925 | xfree (info->name); | |
1926 | info->name = arg ? xstrdup (arg) : NULL; | |
1927 | } | |
1928 | ||
60f98dde MS |
1929 | /* Find thread ids with a name, target pid, or extra info matching ARG. */ |
1930 | ||
1931 | static void | |
1932 | thread_find_command (char *arg, int from_tty) | |
1933 | { | |
1934 | struct thread_info *tp; | |
73ede765 | 1935 | const char *tmp; |
60f98dde MS |
1936 | unsigned long match = 0; |
1937 | ||
1938 | if (arg == NULL || *arg == '\0') | |
1939 | error (_("Command requires an argument.")); | |
1940 | ||
1941 | tmp = re_comp (arg); | |
1942 | if (tmp != 0) | |
1943 | error (_("Invalid regexp (%s): %s"), tmp, arg); | |
1944 | ||
1945 | update_thread_list (); | |
1946 | for (tp = thread_list; tp; tp = tp->next) | |
1947 | { | |
1948 | if (tp->name != NULL && re_exec (tp->name)) | |
1949 | { | |
43792cf0 PA |
1950 | printf_filtered (_("Thread %s has name '%s'\n"), |
1951 | print_thread_id (tp), tp->name); | |
60f98dde MS |
1952 | match++; |
1953 | } | |
1954 | ||
1955 | tmp = target_thread_name (tp); | |
1956 | if (tmp != NULL && re_exec (tmp)) | |
1957 | { | |
43792cf0 PA |
1958 | printf_filtered (_("Thread %s has target name '%s'\n"), |
1959 | print_thread_id (tp), tmp); | |
60f98dde MS |
1960 | match++; |
1961 | } | |
1962 | ||
1963 | tmp = target_pid_to_str (tp->ptid); | |
1964 | if (tmp != NULL && re_exec (tmp)) | |
1965 | { | |
43792cf0 PA |
1966 | printf_filtered (_("Thread %s has target id '%s'\n"), |
1967 | print_thread_id (tp), tmp); | |
60f98dde MS |
1968 | match++; |
1969 | } | |
1970 | ||
1971 | tmp = target_extra_thread_info (tp); | |
1972 | if (tmp != NULL && re_exec (tmp)) | |
1973 | { | |
43792cf0 PA |
1974 | printf_filtered (_("Thread %s has extra info '%s'\n"), |
1975 | print_thread_id (tp), tmp); | |
60f98dde MS |
1976 | match++; |
1977 | } | |
1978 | } | |
1979 | if (!match) | |
1980 | printf_filtered (_("No threads match '%s'\n"), arg); | |
1981 | } | |
1982 | ||
93815fbf VP |
1983 | /* Print notices when new threads are attached and detached. */ |
1984 | int print_thread_events = 1; | |
1985 | static void | |
1986 | show_print_thread_events (struct ui_file *file, int from_tty, | |
ae0eee42 | 1987 | struct cmd_list_element *c, const char *value) |
93815fbf | 1988 | { |
3e43a32a MS |
1989 | fprintf_filtered (file, |
1990 | _("Printing of thread events is %s.\n"), | |
ae0eee42 | 1991 | value); |
93815fbf VP |
1992 | } |
1993 | ||
c5394b80 | 1994 | static int |
5d5658a1 | 1995 | do_captured_thread_select (struct ui_out *uiout, void *tidstr_v) |
c5394b80 | 1996 | { |
c0518081 | 1997 | const char *tidstr = (const char *) tidstr_v; |
c5394b80 JM |
1998 | struct thread_info *tp; |
1999 | ||
112e8700 | 2000 | if (uiout->is_mi_like_p ()) |
5d5658a1 PA |
2001 | { |
2002 | int num = value_as_long (parse_and_eval (tidstr)); | |
c906108c | 2003 | |
5d5658a1 PA |
2004 | tp = find_thread_global_id (num); |
2005 | if (tp == NULL) | |
2006 | error (_("Thread ID %d not known."), num); | |
2007 | } | |
2008 | else | |
2009 | { | |
2010 | tp = parse_thread_id (tidstr, NULL); | |
2011 | gdb_assert (tp != NULL); | |
2012 | } | |
c906108c SS |
2013 | |
2014 | if (!thread_alive (tp)) | |
5d5658a1 | 2015 | error (_("Thread ID %s has terminated."), tidstr); |
c906108c | 2016 | |
dcf4fbde | 2017 | switch_to_thread (tp->ptid); |
c906108c | 2018 | |
db5a7484 NR |
2019 | annotate_thread_changed (); |
2020 | ||
4034d0ff AT |
2021 | /* Since the current thread may have changed, see if there is any |
2022 | exited thread we can now delete. */ | |
2023 | prune_threads (); | |
2024 | ||
2025 | return GDB_RC_OK; | |
2026 | } | |
2027 | ||
2028 | /* Print thread and frame switch command response. */ | |
2029 | ||
2030 | void | |
2031 | print_selected_thread_frame (struct ui_out *uiout, | |
2032 | user_selected_what selection) | |
2033 | { | |
2034 | struct thread_info *tp = inferior_thread (); | |
2035 | struct inferior *inf = current_inferior (); | |
2036 | ||
2037 | if (selection & USER_SELECTED_THREAD) | |
5d5658a1 | 2038 | { |
112e8700 | 2039 | if (uiout->is_mi_like_p ()) |
4034d0ff | 2040 | { |
112e8700 | 2041 | uiout->field_int ("new-thread-id", |
4034d0ff AT |
2042 | inferior_thread ()->global_num); |
2043 | } | |
2044 | else | |
2045 | { | |
112e8700 SM |
2046 | uiout->text ("[Switching to thread "); |
2047 | uiout->field_string ("new-thread-id", print_thread_id (tp)); | |
2048 | uiout->text (" ("); | |
2049 | uiout->text (target_pid_to_str (inferior_ptid)); | |
2050 | uiout->text (")]"); | |
4034d0ff | 2051 | } |
5d5658a1 | 2052 | } |
c5394b80 | 2053 | |
30596231 | 2054 | if (tp->state == THREAD_RUNNING) |
98871305 | 2055 | { |
4034d0ff | 2056 | if (selection & USER_SELECTED_THREAD) |
112e8700 | 2057 | uiout->text ("(running)\n"); |
98871305 | 2058 | } |
4034d0ff AT |
2059 | else if (selection & USER_SELECTED_FRAME) |
2060 | { | |
2061 | if (selection & USER_SELECTED_THREAD) | |
112e8700 | 2062 | uiout->text ("\n"); |
4f8d22e3 | 2063 | |
4034d0ff AT |
2064 | if (has_stack_frames ()) |
2065 | print_stack_frame_to_uiout (uiout, get_selected_frame (NULL), | |
2066 | 1, SRC_AND_LOC, 1); | |
2067 | } | |
c5394b80 JM |
2068 | } |
2069 | ||
2070 | enum gdb_rc | |
ce43223b | 2071 | gdb_thread_select (struct ui_out *uiout, char *tidstr, char **error_message) |
c5394b80 | 2072 | { |
b0b13bb4 DJ |
2073 | if (catch_exceptions_with_msg (uiout, do_captured_thread_select, tidstr, |
2074 | error_message, RETURN_MASK_ALL) < 0) | |
2075 | return GDB_RC_FAIL; | |
2076 | return GDB_RC_OK; | |
c906108c SS |
2077 | } |
2078 | ||
b57bacec PA |
2079 | /* Update the 'threads_executing' global based on the threads we know |
2080 | about right now. */ | |
2081 | ||
2082 | static void | |
2083 | update_threads_executing (void) | |
2084 | { | |
2085 | struct thread_info *tp; | |
2086 | ||
2087 | threads_executing = 0; | |
2088 | ALL_NON_EXITED_THREADS (tp) | |
2089 | { | |
2090 | if (tp->executing) | |
2091 | { | |
2092 | threads_executing = 1; | |
2093 | break; | |
2094 | } | |
2095 | } | |
2096 | } | |
2097 | ||
dc146f7c VP |
2098 | void |
2099 | update_thread_list (void) | |
2100 | { | |
e8032dde | 2101 | target_update_thread_list (); |
b57bacec | 2102 | update_threads_executing (); |
dc146f7c VP |
2103 | } |
2104 | ||
663f6d42 PA |
2105 | /* Return a new value for the selected thread's id. Return a value of |
2106 | 0 if no thread is selected. If GLOBAL is true, return the thread's | |
2107 | global number. Otherwise return the per-inferior number. */ | |
2108 | ||
2109 | static struct value * | |
2110 | thread_num_make_value_helper (struct gdbarch *gdbarch, int global) | |
2111 | { | |
2112 | struct thread_info *tp = find_thread_ptid (inferior_ptid); | |
2113 | int int_val; | |
2114 | ||
2115 | if (tp == NULL) | |
2116 | int_val = 0; | |
2117 | else if (global) | |
2118 | int_val = tp->global_num; | |
2119 | else | |
2120 | int_val = tp->per_inf_num; | |
2121 | ||
2122 | return value_from_longest (builtin_type (gdbarch)->builtin_int, int_val); | |
2123 | } | |
2124 | ||
5d5658a1 PA |
2125 | /* Return a new value for the selected thread's per-inferior thread |
2126 | number. Return a value of 0 if no thread is selected, or no | |
2127 | threads exist. */ | |
6aed2dbc SS |
2128 | |
2129 | static struct value * | |
ae0eee42 PA |
2130 | thread_id_per_inf_num_make_value (struct gdbarch *gdbarch, |
2131 | struct internalvar *var, | |
663f6d42 | 2132 | void *ignore) |
6aed2dbc | 2133 | { |
663f6d42 PA |
2134 | return thread_num_make_value_helper (gdbarch, 0); |
2135 | } | |
2136 | ||
2137 | /* Return a new value for the selected thread's global id. Return a | |
2138 | value of 0 if no thread is selected, or no threads exist. */ | |
6aed2dbc | 2139 | |
663f6d42 PA |
2140 | static struct value * |
2141 | global_thread_id_make_value (struct gdbarch *gdbarch, struct internalvar *var, | |
2142 | void *ignore) | |
2143 | { | |
2144 | return thread_num_make_value_helper (gdbarch, 1); | |
6aed2dbc SS |
2145 | } |
2146 | ||
c906108c SS |
2147 | /* Commands with a prefix of `thread'. */ |
2148 | struct cmd_list_element *thread_cmd_list = NULL; | |
2149 | ||
22d2b532 SDJ |
2150 | /* Implementation of `thread' variable. */ |
2151 | ||
2152 | static const struct internalvar_funcs thread_funcs = | |
2153 | { | |
663f6d42 PA |
2154 | thread_id_per_inf_num_make_value, |
2155 | NULL, | |
2156 | NULL | |
2157 | }; | |
2158 | ||
2159 | /* Implementation of `gthread' variable. */ | |
2160 | ||
2161 | static const struct internalvar_funcs gthread_funcs = | |
2162 | { | |
2163 | global_thread_id_make_value, | |
22d2b532 SDJ |
2164 | NULL, |
2165 | NULL | |
2166 | }; | |
2167 | ||
c906108c | 2168 | void |
fba45db2 | 2169 | _initialize_thread (void) |
c906108c SS |
2170 | { |
2171 | static struct cmd_list_element *thread_apply_list = NULL; | |
c906108c | 2172 | |
ae0eee42 | 2173 | add_info ("threads", info_threads_command, |
60f98dde | 2174 | _("Display currently known threads.\n\ |
c84f6bbf PA |
2175 | Usage: info threads [-gid] [ID]...\n\ |
2176 | -gid: Show global thread IDs.\n\ | |
5d5658a1 PA |
2177 | If ID is given, it is a space-separated list of IDs of threads to display.\n\ |
2178 | Otherwise, all threads are displayed.")); | |
c906108c | 2179 | |
d729566a | 2180 | add_prefix_cmd ("thread", class_run, thread_command, _("\ |
1bedd215 AC |
2181 | Use this command to switch between threads.\n\ |
2182 | The new thread ID must be currently known."), | |
d729566a | 2183 | &thread_cmd_list, "thread ", 1, &cmdlist); |
c906108c | 2184 | |
d729566a PA |
2185 | add_prefix_cmd ("apply", class_run, thread_apply_command, |
2186 | _("Apply a command to a list of threads."), | |
2187 | &thread_apply_list, "thread apply ", 1, &thread_cmd_list); | |
c906108c | 2188 | |
d729566a | 2189 | add_cmd ("all", class_run, thread_apply_all_command, |
253828f1 JK |
2190 | _("\ |
2191 | Apply a command to all threads.\n\ | |
2192 | \n\ | |
2193 | Usage: thread apply all [-ascending] <command>\n\ | |
2194 | -ascending: Call <command> for all threads in ascending order.\n\ | |
2195 | The default is descending order.\ | |
2196 | "), | |
2197 | &thread_apply_list); | |
c906108c | 2198 | |
4694da01 TT |
2199 | add_cmd ("name", class_run, thread_name_command, |
2200 | _("Set the current thread's name.\n\ | |
2201 | Usage: thread name [NAME]\n\ | |
2202 | If NAME is not given, then any existing name is removed."), &thread_cmd_list); | |
2203 | ||
60f98dde MS |
2204 | add_cmd ("find", class_run, thread_find_command, _("\ |
2205 | Find threads that match a regular expression.\n\ | |
2206 | Usage: thread find REGEXP\n\ | |
2207 | Will display thread ids whose name, target ID, or extra info matches REGEXP."), | |
2208 | &thread_cmd_list); | |
2209 | ||
4f45d445 | 2210 | add_com_alias ("t", "thread", class_run, 1); |
93815fbf VP |
2211 | |
2212 | add_setshow_boolean_cmd ("thread-events", no_class, | |
ae0eee42 | 2213 | &print_thread_events, _("\ |
11c68c47 EZ |
2214 | Set printing of thread events (such as thread start and exit)."), _("\ |
2215 | Show printing of thread events (such as thread start and exit)."), NULL, | |
ae0eee42 PA |
2216 | NULL, |
2217 | show_print_thread_events, | |
2218 | &setprintlist, &showprintlist); | |
6aed2dbc | 2219 | |
22d2b532 | 2220 | create_internalvar_type_lazy ("_thread", &thread_funcs, NULL); |
663f6d42 | 2221 | create_internalvar_type_lazy ("_gthread", >hread_funcs, NULL); |
c906108c | 2222 | } |