Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Multi-process/thread control for GDB, the GNU debugger. |
8926118c AC |
2 | |
3 | Copyright 1986, 1987, 1988, 1993, 1994, 1995, 1996, 1997, 1998, | |
7789d0fa | 4 | 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. |
8926118c | 5 | |
b6ba6518 | 6 | Contributed by Lynx Real-Time Systems, Inc. Los Gatos, CA. |
c906108c | 7 | |
c5aa993b | 8 | This file is part of GDB. |
c906108c | 9 | |
c5aa993b JM |
10 | This program is free software; you can redistribute it and/or modify |
11 | it under the terms of the GNU General Public License as published by | |
12 | the Free Software Foundation; either version 2 of the License, or | |
13 | (at your option) any later version. | |
c906108c | 14 | |
c5aa993b JM |
15 | This program is distributed in the hope that it will be useful, |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
c906108c | 19 | |
c5aa993b JM |
20 | You should have received a copy of the GNU General Public License |
21 | along with this program; if not, write to the Free Software | |
22 | Foundation, Inc., 59 Temple Place - Suite 330, | |
23 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
24 | |
25 | #include "defs.h" | |
26 | #include "symtab.h" | |
27 | #include "frame.h" | |
28 | #include "inferior.h" | |
29 | #include "environ.h" | |
30 | #include "value.h" | |
31 | #include "target.h" | |
32 | #include "gdbthread.h" | |
33 | #include "command.h" | |
34 | #include "gdbcmd.h" | |
4e052eda | 35 | #include "regcache.h" |
5b7f31a4 | 36 | #include "gdb.h" |
b66d6d2e | 37 | #include "gdb_string.h" |
c906108c SS |
38 | |
39 | #include <ctype.h> | |
40 | #include <sys/types.h> | |
41 | #include <signal.h> | |
8b93c638 | 42 | #include "ui-out.h" |
c906108c | 43 | |
c5aa993b | 44 | /*#include "lynxos-core.h" */ |
c906108c | 45 | |
0d06e24b | 46 | /* Definition of struct thread_info exported to gdbthread.h */ |
c906108c SS |
47 | |
48 | /* Prototypes for exported functions. */ | |
49 | ||
a14ed312 | 50 | void _initialize_thread (void); |
c906108c SS |
51 | |
52 | /* Prototypes for local functions. */ | |
53 | ||
c906108c SS |
54 | static struct thread_info *thread_list = NULL; |
55 | static int highest_thread_num; | |
56 | ||
a14ed312 | 57 | static struct thread_info *find_thread_id (int num); |
c906108c | 58 | |
a14ed312 KB |
59 | static void thread_command (char *tidstr, int from_tty); |
60 | static void thread_apply_all_command (char *, int); | |
61 | static int thread_alive (struct thread_info *); | |
62 | static void info_threads_command (char *, int); | |
63 | static void thread_apply_command (char *, int); | |
39f77062 KB |
64 | static void restore_current_thread (ptid_t); |
65 | static void switch_to_thread (ptid_t ptid); | |
a14ed312 | 66 | static void prune_threads (void); |
c906108c | 67 | |
8601f500 MS |
68 | void |
69 | delete_step_resume_breakpoint (void *arg) | |
70 | { | |
71 | struct breakpoint **breakpointp = (struct breakpoint **) arg; | |
72 | struct thread_info *tp; | |
73 | ||
74 | if (*breakpointp != NULL) | |
75 | { | |
76 | delete_breakpoint (*breakpointp); | |
77 | for (tp = thread_list; tp; tp = tp->next) | |
78 | if (tp->step_resume_breakpoint == *breakpointp) | |
79 | tp->step_resume_breakpoint = NULL; | |
80 | ||
81 | *breakpointp = NULL; | |
82 | } | |
83 | } | |
84 | ||
7c952b6d ND |
85 | static void |
86 | free_thread (struct thread_info *tp) | |
87 | { | |
88 | /* NOTE: this will take care of any left-over step_resume breakpoints, | |
89 | but not any user-specified thread-specific breakpoints. */ | |
90 | if (tp->step_resume_breakpoint) | |
91 | delete_breakpoint (tp->step_resume_breakpoint); | |
92 | ||
93 | /* FIXME: do I ever need to call the back-end to give it a | |
94 | chance at this private data before deleting the thread? */ | |
95 | if (tp->private) | |
b8c9b27d | 96 | xfree (tp->private); |
7c952b6d | 97 | |
b8c9b27d | 98 | xfree (tp); |
7c952b6d ND |
99 | } |
100 | ||
c906108c | 101 | void |
fba45db2 | 102 | init_thread_list (void) |
c906108c SS |
103 | { |
104 | struct thread_info *tp, *tpnext; | |
105 | ||
7c952b6d | 106 | highest_thread_num = 0; |
c906108c SS |
107 | if (!thread_list) |
108 | return; | |
109 | ||
110 | for (tp = thread_list; tp; tp = tpnext) | |
111 | { | |
112 | tpnext = tp->next; | |
7c952b6d | 113 | free_thread (tp); |
c906108c SS |
114 | } |
115 | ||
116 | thread_list = NULL; | |
c906108c SS |
117 | } |
118 | ||
0d06e24b JM |
119 | /* add_thread now returns a pointer to the new thread_info, |
120 | so that back_ends can initialize their private data. */ | |
121 | ||
122 | struct thread_info * | |
39f77062 | 123 | add_thread (ptid_t ptid) |
c906108c SS |
124 | { |
125 | struct thread_info *tp; | |
126 | ||
6c0d3f6a MS |
127 | tp = (struct thread_info *) xmalloc (sizeof (*tp)); |
128 | memset (tp, 0, sizeof (*tp)); | |
39f77062 | 129 | tp->ptid = ptid; |
c906108c | 130 | tp->num = ++highest_thread_num; |
c906108c SS |
131 | tp->next = thread_list; |
132 | thread_list = tp; | |
0d06e24b | 133 | return tp; |
c906108c SS |
134 | } |
135 | ||
136 | void | |
39f77062 | 137 | delete_thread (ptid_t ptid) |
c906108c SS |
138 | { |
139 | struct thread_info *tp, *tpprev; | |
140 | ||
141 | tpprev = NULL; | |
142 | ||
143 | for (tp = thread_list; tp; tpprev = tp, tp = tp->next) | |
39f77062 | 144 | if (ptid_equal (tp->ptid, ptid)) |
c906108c SS |
145 | break; |
146 | ||
147 | if (!tp) | |
148 | return; | |
149 | ||
150 | if (tpprev) | |
151 | tpprev->next = tp->next; | |
152 | else | |
153 | thread_list = tp->next; | |
154 | ||
7c952b6d | 155 | free_thread (tp); |
c906108c SS |
156 | } |
157 | ||
158 | static struct thread_info * | |
fba45db2 | 159 | find_thread_id (int num) |
c906108c SS |
160 | { |
161 | struct thread_info *tp; | |
162 | ||
163 | for (tp = thread_list; tp; tp = tp->next) | |
164 | if (tp->num == num) | |
165 | return tp; | |
166 | ||
167 | return NULL; | |
168 | } | |
169 | ||
39f77062 | 170 | /* Find a thread_info by matching PTID. */ |
0d06e24b | 171 | struct thread_info * |
39f77062 | 172 | find_thread_pid (ptid_t ptid) |
0d06e24b JM |
173 | { |
174 | struct thread_info *tp; | |
175 | ||
176 | for (tp = thread_list; tp; tp = tp->next) | |
39f77062 | 177 | if (ptid_equal (tp->ptid, ptid)) |
0d06e24b JM |
178 | return tp; |
179 | ||
180 | return NULL; | |
181 | } | |
182 | ||
183 | /* | |
184 | * Thread iterator function. | |
185 | * | |
186 | * Calls a callback function once for each thread, so long as | |
187 | * the callback function returns false. If the callback function | |
188 | * returns true, the iteration will end and the current thread | |
189 | * will be returned. This can be useful for implementing a | |
190 | * search for a thread with arbitrary attributes, or for applying | |
191 | * some operation to every thread. | |
192 | * | |
193 | * FIXME: some of the existing functionality, such as | |
194 | * "Thread apply all", might be rewritten using this functionality. | |
195 | */ | |
196 | ||
197 | struct thread_info * | |
fd118b61 KB |
198 | iterate_over_threads (int (*callback) (struct thread_info *, void *), |
199 | void *data) | |
0d06e24b JM |
200 | { |
201 | struct thread_info *tp; | |
202 | ||
203 | for (tp = thread_list; tp; tp = tp->next) | |
204 | if ((*callback) (tp, data)) | |
205 | return tp; | |
206 | ||
207 | return NULL; | |
208 | } | |
209 | ||
c906108c | 210 | int |
fba45db2 | 211 | valid_thread_id (int num) |
c906108c SS |
212 | { |
213 | struct thread_info *tp; | |
214 | ||
215 | for (tp = thread_list; tp; tp = tp->next) | |
216 | if (tp->num == num) | |
217 | return 1; | |
218 | ||
219 | return 0; | |
220 | } | |
221 | ||
222 | int | |
39f77062 | 223 | pid_to_thread_id (ptid_t ptid) |
c906108c SS |
224 | { |
225 | struct thread_info *tp; | |
226 | ||
227 | for (tp = thread_list; tp; tp = tp->next) | |
39f77062 | 228 | if (ptid_equal (tp->ptid, ptid)) |
c906108c SS |
229 | return tp->num; |
230 | ||
231 | return 0; | |
232 | } | |
233 | ||
39f77062 | 234 | ptid_t |
fba45db2 | 235 | thread_id_to_pid (int num) |
c906108c SS |
236 | { |
237 | struct thread_info *thread = find_thread_id (num); | |
238 | if (thread) | |
39f77062 | 239 | return thread->ptid; |
c906108c | 240 | else |
39f77062 | 241 | return pid_to_ptid (-1); |
c906108c SS |
242 | } |
243 | ||
244 | int | |
39f77062 | 245 | in_thread_list (ptid_t ptid) |
c906108c SS |
246 | { |
247 | struct thread_info *tp; | |
248 | ||
249 | for (tp = thread_list; tp; tp = tp->next) | |
39f77062 | 250 | if (ptid_equal (tp->ptid, ptid)) |
c906108c SS |
251 | return 1; |
252 | ||
253 | return 0; /* Never heard of 'im */ | |
254 | } | |
8926118c | 255 | |
8b93c638 JM |
256 | /* Print a list of thread ids currently known, and the total number of |
257 | threads. To be used from within catch_errors. */ | |
6949171e JJ |
258 | static int |
259 | do_captured_list_thread_ids (struct ui_out *uiout, void *arg) | |
8b93c638 JM |
260 | { |
261 | struct thread_info *tp; | |
262 | int num = 0; | |
3b31d625 | 263 | struct cleanup *cleanup_chain; |
8b93c638 | 264 | |
7990a578 EZ |
265 | prune_threads (); |
266 | target_find_new_threads (); | |
267 | ||
3b31d625 | 268 | cleanup_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "thread-ids"); |
8b93c638 JM |
269 | |
270 | for (tp = thread_list; tp; tp = tp->next) | |
271 | { | |
272 | num++; | |
273 | ui_out_field_int (uiout, "thread-id", tp->num); | |
274 | } | |
275 | ||
3b31d625 | 276 | do_cleanups (cleanup_chain); |
8b93c638 JM |
277 | ui_out_field_int (uiout, "number-of-threads", num); |
278 | return GDB_RC_OK; | |
279 | } | |
280 | ||
281 | /* Official gdblib interface function to get a list of thread ids and | |
282 | the total number. */ | |
283 | enum gdb_rc | |
2b65245e | 284 | gdb_list_thread_ids (struct ui_out *uiout) |
8b93c638 | 285 | { |
2b65245e AC |
286 | return catch_exceptions (uiout, do_captured_list_thread_ids, NULL, |
287 | NULL, RETURN_MASK_ALL); | |
8b93c638 | 288 | } |
c906108c SS |
289 | |
290 | /* Load infrun state for the thread PID. */ | |
291 | ||
c5aa993b | 292 | void |
6949171e JJ |
293 | load_infrun_state (ptid_t ptid, |
294 | CORE_ADDR *prev_pc, | |
6c0d3f6a | 295 | int *trap_expected, |
fba45db2 | 296 | struct breakpoint **step_resume_breakpoint, |
6949171e | 297 | CORE_ADDR *step_range_start, |
6c0d3f6a | 298 | CORE_ADDR *step_range_end, |
6949171e | 299 | struct frame_id *step_frame_id, |
6c0d3f6a | 300 | int *handling_longjmp, |
6949171e | 301 | int *another_trap, |
6c0d3f6a | 302 | int *stepping_through_solib_after_catch, |
fba45db2 | 303 | bpstat *stepping_through_solib_catchpoints, |
6c0d3f6a | 304 | int *stepping_through_sigtramp, |
6949171e | 305 | int *current_line, |
f2c9ca08 | 306 | struct symtab **current_symtab) |
c906108c SS |
307 | { |
308 | struct thread_info *tp; | |
309 | ||
310 | /* If we can't find the thread, then we're debugging a single threaded | |
311 | process. No need to do anything in that case. */ | |
39f77062 | 312 | tp = find_thread_id (pid_to_thread_id (ptid)); |
c906108c SS |
313 | if (tp == NULL) |
314 | return; | |
315 | ||
316 | *prev_pc = tp->prev_pc; | |
6c0d3f6a | 317 | *trap_expected = tp->trap_expected; |
c906108c SS |
318 | *step_resume_breakpoint = tp->step_resume_breakpoint; |
319 | *step_range_start = tp->step_range_start; | |
320 | *step_range_end = tp->step_range_end; | |
aa0cd9c1 | 321 | *step_frame_id = tp->step_frame_id; |
c906108c | 322 | *handling_longjmp = tp->handling_longjmp; |
c906108c | 323 | *another_trap = tp->another_trap; |
6949171e JJ |
324 | *stepping_through_solib_after_catch = |
325 | tp->stepping_through_solib_after_catch; | |
326 | *stepping_through_solib_catchpoints = | |
327 | tp->stepping_through_solib_catchpoints; | |
c906108c | 328 | *stepping_through_sigtramp = tp->stepping_through_sigtramp; |
6c0d3f6a MS |
329 | *current_line = tp->current_line; |
330 | *current_symtab = tp->current_symtab; | |
c906108c SS |
331 | } |
332 | ||
333 | /* Save infrun state for the thread PID. */ | |
334 | ||
c5aa993b | 335 | void |
6949171e JJ |
336 | save_infrun_state (ptid_t ptid, |
337 | CORE_ADDR prev_pc, | |
6c0d3f6a | 338 | int trap_expected, |
fba45db2 | 339 | struct breakpoint *step_resume_breakpoint, |
6949171e | 340 | CORE_ADDR step_range_start, |
6c0d3f6a | 341 | CORE_ADDR step_range_end, |
6949171e | 342 | const struct frame_id *step_frame_id, |
6c0d3f6a | 343 | int handling_longjmp, |
6949171e | 344 | int another_trap, |
6c0d3f6a | 345 | int stepping_through_solib_after_catch, |
fba45db2 | 346 | bpstat stepping_through_solib_catchpoints, |
6949171e | 347 | int stepping_through_sigtramp, |
6c0d3f6a | 348 | int current_line, |
f2c9ca08 | 349 | struct symtab *current_symtab) |
c906108c SS |
350 | { |
351 | struct thread_info *tp; | |
352 | ||
353 | /* If we can't find the thread, then we're debugging a single-threaded | |
354 | process. Nothing to do in that case. */ | |
39f77062 | 355 | tp = find_thread_id (pid_to_thread_id (ptid)); |
c906108c SS |
356 | if (tp == NULL) |
357 | return; | |
358 | ||
359 | tp->prev_pc = prev_pc; | |
6c0d3f6a | 360 | tp->trap_expected = trap_expected; |
c906108c SS |
361 | tp->step_resume_breakpoint = step_resume_breakpoint; |
362 | tp->step_range_start = step_range_start; | |
363 | tp->step_range_end = step_range_end; | |
aa0cd9c1 | 364 | tp->step_frame_id = (*step_frame_id); |
c906108c | 365 | tp->handling_longjmp = handling_longjmp; |
c906108c SS |
366 | tp->another_trap = another_trap; |
367 | tp->stepping_through_solib_after_catch = stepping_through_solib_after_catch; | |
368 | tp->stepping_through_solib_catchpoints = stepping_through_solib_catchpoints; | |
369 | tp->stepping_through_sigtramp = stepping_through_sigtramp; | |
6c0d3f6a MS |
370 | tp->current_line = current_line; |
371 | tp->current_symtab = current_symtab; | |
c906108c SS |
372 | } |
373 | ||
374 | /* Return true if TP is an active thread. */ | |
375 | static int | |
fba45db2 | 376 | thread_alive (struct thread_info *tp) |
c906108c | 377 | { |
39f77062 | 378 | if (PIDGET (tp->ptid) == -1) |
c906108c | 379 | return 0; |
39f77062 | 380 | if (!target_thread_alive (tp->ptid)) |
c906108c | 381 | { |
39f77062 | 382 | tp->ptid = pid_to_ptid (-1); /* Mark it as dead */ |
c906108c SS |
383 | return 0; |
384 | } | |
385 | return 1; | |
386 | } | |
387 | ||
388 | static void | |
fba45db2 | 389 | prune_threads (void) |
c906108c | 390 | { |
d4f3574e | 391 | struct thread_info *tp, *next; |
c906108c | 392 | |
c906108c SS |
393 | for (tp = thread_list; tp; tp = next) |
394 | { | |
395 | next = tp->next; | |
396 | if (!thread_alive (tp)) | |
39f77062 | 397 | delete_thread (tp->ptid); |
c906108c SS |
398 | } |
399 | } | |
400 | ||
401 | /* Print information about currently known threads | |
c5aa993b | 402 | |
c906108c SS |
403 | * Note: this has the drawback that it _really_ switches |
404 | * threads, which frees the frame cache. A no-side | |
405 | * effects info-threads command would be nicer. | |
406 | */ | |
407 | ||
408 | static void | |
fba45db2 | 409 | info_threads_command (char *arg, int from_tty) |
c906108c SS |
410 | { |
411 | struct thread_info *tp; | |
39f77062 | 412 | ptid_t current_ptid; |
c5aa993b | 413 | struct frame_info *cur_frame; |
7789d0fa | 414 | struct frame_id saved_frame_id = get_frame_id (get_selected_frame ()); |
0d06e24b | 415 | char *extra_info; |
c906108c | 416 | |
c906108c | 417 | prune_threads (); |
b83266a0 | 418 | target_find_new_threads (); |
39f77062 | 419 | current_ptid = inferior_ptid; |
c906108c SS |
420 | for (tp = thread_list; tp; tp = tp->next) |
421 | { | |
39f77062 | 422 | if (ptid_equal (tp->ptid, current_ptid)) |
c906108c SS |
423 | printf_filtered ("* "); |
424 | else | |
425 | printf_filtered (" "); | |
426 | ||
39f77062 | 427 | printf_filtered ("%d %s", tp->num, target_tid_to_str (tp->ptid)); |
0d06e24b JM |
428 | |
429 | extra_info = target_extra_thread_info (tp); | |
430 | if (extra_info) | |
431 | printf_filtered (" (%s)", extra_info); | |
432 | puts_filtered (" "); | |
433 | ||
39f77062 | 434 | switch_to_thread (tp->ptid); |
0faf0076 | 435 | print_stack_frame (get_selected_frame (), 0, LOCATION); |
c906108c SS |
436 | } |
437 | ||
39f77062 | 438 | switch_to_thread (current_ptid); |
c906108c | 439 | |
7789d0fa AC |
440 | /* Restores the frame set by the user before the "info threads" |
441 | command. We have finished the info-threads display by switching | |
442 | back to the current thread. That switch has put us at the top of | |
443 | the stack (leaf frame). */ | |
444 | cur_frame = frame_find_by_id (saved_frame_id); | |
445 | if (cur_frame == NULL) | |
c906108c | 446 | { |
7789d0fa | 447 | /* Ooops, can't restore, tell user where we are. */ |
c906108c | 448 | warning ("Couldn't restore frame in current thread, at frame 0"); |
0faf0076 | 449 | print_stack_frame (get_selected_frame (), 0, LOCATION); |
c906108c SS |
450 | } |
451 | else | |
452 | { | |
0f7d239c | 453 | select_frame (cur_frame); |
7789d0fa AC |
454 | /* re-show current frame. */ |
455 | show_stack_frame (cur_frame); | |
c906108c | 456 | } |
c906108c SS |
457 | } |
458 | ||
459 | /* Switch from one thread to another. */ | |
460 | ||
461 | static void | |
39f77062 | 462 | switch_to_thread (ptid_t ptid) |
c906108c | 463 | { |
39f77062 | 464 | if (ptid_equal (ptid, inferior_ptid)) |
c906108c SS |
465 | return; |
466 | ||
39f77062 | 467 | inferior_ptid = ptid; |
c906108c SS |
468 | flush_cached_frames (); |
469 | registers_changed (); | |
c5aa993b | 470 | stop_pc = read_pc (); |
0f7d239c | 471 | select_frame (get_current_frame ()); |
c906108c SS |
472 | } |
473 | ||
474 | static void | |
39f77062 | 475 | restore_current_thread (ptid_t ptid) |
c906108c | 476 | { |
6949171e | 477 | if (!ptid_equal (ptid, inferior_ptid)) |
c906108c | 478 | { |
39f77062 | 479 | switch_to_thread (ptid); |
0faf0076 | 480 | print_stack_frame (get_current_frame (), 1, SRC_LINE); |
c906108c SS |
481 | } |
482 | } | |
483 | ||
6ecce94d AC |
484 | struct current_thread_cleanup |
485 | { | |
39f77062 | 486 | ptid_t inferior_ptid; |
6ecce94d AC |
487 | }; |
488 | ||
489 | static void | |
490 | do_restore_current_thread_cleanup (void *arg) | |
491 | { | |
492 | struct current_thread_cleanup *old = arg; | |
39f77062 | 493 | restore_current_thread (old->inferior_ptid); |
b8c9b27d | 494 | xfree (old); |
6ecce94d AC |
495 | } |
496 | ||
497 | static struct cleanup * | |
39f77062 | 498 | make_cleanup_restore_current_thread (ptid_t inferior_ptid) |
6ecce94d AC |
499 | { |
500 | struct current_thread_cleanup *old | |
501 | = xmalloc (sizeof (struct current_thread_cleanup)); | |
39f77062 | 502 | old->inferior_ptid = inferior_ptid; |
6ecce94d AC |
503 | return make_cleanup (do_restore_current_thread_cleanup, old); |
504 | } | |
505 | ||
c906108c SS |
506 | /* Apply a GDB command to a list of threads. List syntax is a whitespace |
507 | seperated list of numbers, or ranges, or the keyword `all'. Ranges consist | |
508 | of two numbers seperated by a hyphen. Examples: | |
509 | ||
c5aa993b JM |
510 | thread apply 1 2 7 4 backtrace Apply backtrace cmd to threads 1,2,7,4 |
511 | thread apply 2-7 9 p foo(1) Apply p foo(1) cmd to threads 2->7 & 9 | |
512 | thread apply all p x/i $pc Apply x/i $pc cmd to all threads | |
513 | */ | |
c906108c SS |
514 | |
515 | static void | |
fba45db2 | 516 | thread_apply_all_command (char *cmd, int from_tty) |
c906108c SS |
517 | { |
518 | struct thread_info *tp; | |
519 | struct cleanup *old_chain; | |
e35ce267 CF |
520 | struct cleanup *saved_cmd_cleanup_chain; |
521 | char *saved_cmd; | |
c906108c SS |
522 | |
523 | if (cmd == NULL || *cmd == '\000') | |
524 | error ("Please specify a command following the thread ID list"); | |
525 | ||
39f77062 | 526 | old_chain = make_cleanup_restore_current_thread (inferior_ptid); |
c906108c | 527 | |
e9d196c5 MS |
528 | /* It is safe to update the thread list now, before |
529 | traversing it for "thread apply all". MVS */ | |
530 | target_find_new_threads (); | |
531 | ||
e35ce267 CF |
532 | /* Save a copy of the command in case it is clobbered by |
533 | execute_command */ | |
5b616ba1 | 534 | saved_cmd = xstrdup (cmd); |
b8c9b27d | 535 | saved_cmd_cleanup_chain = make_cleanup (xfree, (void *) saved_cmd); |
c906108c SS |
536 | for (tp = thread_list; tp; tp = tp->next) |
537 | if (thread_alive (tp)) | |
538 | { | |
39f77062 | 539 | switch_to_thread (tp->ptid); |
c906108c | 540 | printf_filtered ("\nThread %d (%s):\n", |
6949171e | 541 | tp->num, target_tid_to_str (inferior_ptid)); |
c906108c | 542 | execute_command (cmd, from_tty); |
6949171e | 543 | strcpy (cmd, saved_cmd); /* Restore exact command used previously */ |
c906108c | 544 | } |
6ecce94d | 545 | |
e35ce267 | 546 | do_cleanups (saved_cmd_cleanup_chain); |
6ecce94d | 547 | do_cleanups (old_chain); |
c906108c SS |
548 | } |
549 | ||
550 | static void | |
fba45db2 | 551 | thread_apply_command (char *tidlist, int from_tty) |
c906108c SS |
552 | { |
553 | char *cmd; | |
554 | char *p; | |
555 | struct cleanup *old_chain; | |
e35ce267 CF |
556 | struct cleanup *saved_cmd_cleanup_chain; |
557 | char *saved_cmd; | |
c906108c SS |
558 | |
559 | if (tidlist == NULL || *tidlist == '\000') | |
560 | error ("Please specify a thread ID list"); | |
561 | ||
c5aa993b | 562 | for (cmd = tidlist; *cmd != '\000' && !isalpha (*cmd); cmd++); |
c906108c SS |
563 | |
564 | if (*cmd == '\000') | |
565 | error ("Please specify a command following the thread ID list"); | |
566 | ||
39f77062 | 567 | old_chain = make_cleanup_restore_current_thread (inferior_ptid); |
c906108c | 568 | |
e35ce267 CF |
569 | /* Save a copy of the command in case it is clobbered by |
570 | execute_command */ | |
5b616ba1 | 571 | saved_cmd = xstrdup (cmd); |
b8c9b27d | 572 | saved_cmd_cleanup_chain = make_cleanup (xfree, (void *) saved_cmd); |
c906108c SS |
573 | while (tidlist < cmd) |
574 | { | |
575 | struct thread_info *tp; | |
576 | int start, end; | |
577 | ||
578 | start = strtol (tidlist, &p, 10); | |
579 | if (p == tidlist) | |
580 | error ("Error parsing %s", tidlist); | |
581 | tidlist = p; | |
582 | ||
583 | while (*tidlist == ' ' || *tidlist == '\t') | |
584 | tidlist++; | |
585 | ||
586 | if (*tidlist == '-') /* Got a range of IDs? */ | |
587 | { | |
c5aa993b | 588 | tidlist++; /* Skip the - */ |
c906108c SS |
589 | end = strtol (tidlist, &p, 10); |
590 | if (p == tidlist) | |
591 | error ("Error parsing %s", tidlist); | |
592 | tidlist = p; | |
593 | ||
594 | while (*tidlist == ' ' || *tidlist == '\t') | |
595 | tidlist++; | |
596 | } | |
597 | else | |
598 | end = start; | |
599 | ||
600 | for (; start <= end; start++) | |
601 | { | |
602 | tp = find_thread_id (start); | |
603 | ||
604 | if (!tp) | |
605 | warning ("Unknown thread %d.", start); | |
606 | else if (!thread_alive (tp)) | |
607 | warning ("Thread %d has terminated.", start); | |
608 | else | |
609 | { | |
39f77062 | 610 | switch_to_thread (tp->ptid); |
c906108c | 611 | printf_filtered ("\nThread %d (%s):\n", tp->num, |
39f77062 | 612 | target_tid_to_str (inferior_ptid)); |
c906108c | 613 | execute_command (cmd, from_tty); |
e35ce267 | 614 | strcpy (cmd, saved_cmd); /* Restore exact command used previously */ |
c906108c SS |
615 | } |
616 | } | |
617 | } | |
6ecce94d | 618 | |
e35ce267 | 619 | do_cleanups (saved_cmd_cleanup_chain); |
6ecce94d | 620 | do_cleanups (old_chain); |
c906108c SS |
621 | } |
622 | ||
623 | /* Switch to the specified thread. Will dispatch off to thread_apply_command | |
624 | if prefix of arg is `apply'. */ | |
625 | ||
626 | static void | |
fba45db2 | 627 | thread_command (char *tidstr, int from_tty) |
c906108c | 628 | { |
c906108c SS |
629 | if (!tidstr) |
630 | { | |
631 | /* Don't generate an error, just say which thread is current. */ | |
632 | if (target_has_stack) | |
633 | printf_filtered ("[Current thread is %d (%s)]\n", | |
39f77062 | 634 | pid_to_thread_id (inferior_ptid), |
007d08bb | 635 | target_tid_to_str (inferior_ptid)); |
c906108c SS |
636 | else |
637 | error ("No stack."); | |
638 | return; | |
639 | } | |
c5394b80 | 640 | |
2b65245e | 641 | gdb_thread_select (uiout, tidstr); |
c5394b80 JM |
642 | } |
643 | ||
644 | static int | |
6949171e | 645 | do_captured_thread_select (struct ui_out *uiout, void *tidstr) |
c5394b80 JM |
646 | { |
647 | int num; | |
648 | struct thread_info *tp; | |
649 | ||
81490ea1 | 650 | num = value_as_long (parse_and_eval (tidstr)); |
c906108c SS |
651 | |
652 | tp = find_thread_id (num); | |
653 | ||
8b93c638 JM |
654 | if (!tp) |
655 | error ("Thread ID %d not known.", num); | |
c906108c SS |
656 | |
657 | if (!thread_alive (tp)) | |
658 | error ("Thread ID %d has terminated.\n", num); | |
659 | ||
39f77062 | 660 | switch_to_thread (tp->ptid); |
c906108c | 661 | |
8b93c638 | 662 | ui_out_text (uiout, "[Switching to thread "); |
39f77062 | 663 | ui_out_field_int (uiout, "new-thread-id", pid_to_thread_id (inferior_ptid)); |
8b93c638 | 664 | ui_out_text (uiout, " ("); |
39f77062 | 665 | ui_out_text (uiout, target_tid_to_str (inferior_ptid)); |
8b93c638 | 666 | ui_out_text (uiout, ")]"); |
c5394b80 | 667 | |
0faf0076 | 668 | print_stack_frame (get_selected_frame (), 1, SRC_AND_LOC); |
c5394b80 JM |
669 | return GDB_RC_OK; |
670 | } | |
671 | ||
672 | enum gdb_rc | |
6949171e | 673 | gdb_thread_select (struct ui_out *uiout, char *tidstr) |
c5394b80 | 674 | { |
2b65245e AC |
675 | return catch_exceptions (uiout, do_captured_thread_select, tidstr, |
676 | NULL, RETURN_MASK_ALL); | |
c906108c SS |
677 | } |
678 | ||
679 | /* Commands with a prefix of `thread'. */ | |
680 | struct cmd_list_element *thread_cmd_list = NULL; | |
681 | ||
682 | void | |
fba45db2 | 683 | _initialize_thread (void) |
c906108c SS |
684 | { |
685 | static struct cmd_list_element *thread_apply_list = NULL; | |
c906108c SS |
686 | |
687 | add_info ("threads", info_threads_command, | |
688 | "IDs of currently known threads."); | |
689 | ||
690 | add_prefix_cmd ("thread", class_run, thread_command, | |
691 | "Use this command to switch between threads.\n\ | |
6949171e | 692 | The new thread ID must be currently known.", &thread_cmd_list, "thread ", 1, &cmdlist); |
c906108c SS |
693 | |
694 | add_prefix_cmd ("apply", class_run, thread_apply_command, | |
695 | "Apply a command to a list of threads.", | |
696 | &thread_apply_list, "apply ", 1, &thread_cmd_list); | |
697 | ||
698 | add_cmd ("all", class_run, thread_apply_all_command, | |
6949171e | 699 | "Apply a command to all threads.", &thread_apply_list); |
c906108c SS |
700 | |
701 | if (!xdb_commands) | |
702 | add_com_alias ("t", "thread", class_run, 1); | |
703 | } |