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, | |
7789c6f5 | 4 | 1999, 2000, 2001, 2002, 2003 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, | |
6949171e | 295 | char **prev_func_name, |
6c0d3f6a | 296 | int *trap_expected, |
fba45db2 KB |
297 | struct breakpoint **step_resume_breakpoint, |
298 | struct breakpoint **through_sigtramp_breakpoint, | |
6949171e | 299 | CORE_ADDR *step_range_start, |
6c0d3f6a | 300 | CORE_ADDR *step_range_end, |
6949171e | 301 | struct frame_id *step_frame_id, |
6c0d3f6a | 302 | int *handling_longjmp, |
6949171e | 303 | int *another_trap, |
6c0d3f6a | 304 | int *stepping_through_solib_after_catch, |
fba45db2 | 305 | bpstat *stepping_through_solib_catchpoints, |
6c0d3f6a | 306 | int *stepping_through_sigtramp, |
6949171e JJ |
307 | int *current_line, |
308 | struct symtab **current_symtab, CORE_ADDR *step_sp) | |
c906108c SS |
309 | { |
310 | struct thread_info *tp; | |
311 | ||
312 | /* If we can't find the thread, then we're debugging a single threaded | |
313 | process. No need to do anything in that case. */ | |
39f77062 | 314 | tp = find_thread_id (pid_to_thread_id (ptid)); |
c906108c SS |
315 | if (tp == NULL) |
316 | return; | |
317 | ||
318 | *prev_pc = tp->prev_pc; | |
c906108c | 319 | *prev_func_name = tp->prev_func_name; |
6c0d3f6a | 320 | *trap_expected = tp->trap_expected; |
c906108c | 321 | *step_resume_breakpoint = tp->step_resume_breakpoint; |
6c0d3f6a | 322 | *through_sigtramp_breakpoint = tp->through_sigtramp_breakpoint; |
c906108c SS |
323 | *step_range_start = tp->step_range_start; |
324 | *step_range_end = tp->step_range_end; | |
aa0cd9c1 | 325 | *step_frame_id = tp->step_frame_id; |
c906108c | 326 | *handling_longjmp = tp->handling_longjmp; |
c906108c | 327 | *another_trap = tp->another_trap; |
6949171e JJ |
328 | *stepping_through_solib_after_catch = |
329 | tp->stepping_through_solib_after_catch; | |
330 | *stepping_through_solib_catchpoints = | |
331 | tp->stepping_through_solib_catchpoints; | |
c906108c | 332 | *stepping_through_sigtramp = tp->stepping_through_sigtramp; |
6c0d3f6a MS |
333 | *current_line = tp->current_line; |
334 | *current_symtab = tp->current_symtab; | |
335 | *step_sp = tp->step_sp; | |
c906108c SS |
336 | } |
337 | ||
338 | /* Save infrun state for the thread PID. */ | |
339 | ||
c5aa993b | 340 | void |
6949171e JJ |
341 | save_infrun_state (ptid_t ptid, |
342 | CORE_ADDR prev_pc, | |
6949171e | 343 | char *prev_func_name, |
6c0d3f6a | 344 | int trap_expected, |
fba45db2 KB |
345 | struct breakpoint *step_resume_breakpoint, |
346 | struct breakpoint *through_sigtramp_breakpoint, | |
6949171e | 347 | CORE_ADDR step_range_start, |
6c0d3f6a | 348 | CORE_ADDR step_range_end, |
6949171e | 349 | const struct frame_id *step_frame_id, |
6c0d3f6a | 350 | int handling_longjmp, |
6949171e | 351 | int another_trap, |
6c0d3f6a | 352 | int stepping_through_solib_after_catch, |
fba45db2 | 353 | bpstat stepping_through_solib_catchpoints, |
6949171e | 354 | int stepping_through_sigtramp, |
6c0d3f6a | 355 | int current_line, |
6949171e | 356 | struct symtab *current_symtab, CORE_ADDR step_sp) |
c906108c SS |
357 | { |
358 | struct thread_info *tp; | |
359 | ||
360 | /* If we can't find the thread, then we're debugging a single-threaded | |
361 | process. Nothing to do in that case. */ | |
39f77062 | 362 | tp = find_thread_id (pid_to_thread_id (ptid)); |
c906108c SS |
363 | if (tp == NULL) |
364 | return; | |
365 | ||
366 | tp->prev_pc = prev_pc; | |
c906108c | 367 | tp->prev_func_name = prev_func_name; |
6c0d3f6a | 368 | tp->trap_expected = trap_expected; |
c906108c | 369 | tp->step_resume_breakpoint = step_resume_breakpoint; |
6c0d3f6a | 370 | tp->through_sigtramp_breakpoint = through_sigtramp_breakpoint; |
c906108c SS |
371 | tp->step_range_start = step_range_start; |
372 | tp->step_range_end = step_range_end; | |
aa0cd9c1 | 373 | tp->step_frame_id = (*step_frame_id); |
c906108c | 374 | tp->handling_longjmp = handling_longjmp; |
c906108c SS |
375 | tp->another_trap = another_trap; |
376 | tp->stepping_through_solib_after_catch = stepping_through_solib_after_catch; | |
377 | tp->stepping_through_solib_catchpoints = stepping_through_solib_catchpoints; | |
378 | tp->stepping_through_sigtramp = stepping_through_sigtramp; | |
6c0d3f6a MS |
379 | tp->current_line = current_line; |
380 | tp->current_symtab = current_symtab; | |
381 | tp->step_sp = step_sp; | |
c906108c SS |
382 | } |
383 | ||
384 | /* Return true if TP is an active thread. */ | |
385 | static int | |
fba45db2 | 386 | thread_alive (struct thread_info *tp) |
c906108c | 387 | { |
39f77062 | 388 | if (PIDGET (tp->ptid) == -1) |
c906108c | 389 | return 0; |
39f77062 | 390 | if (!target_thread_alive (tp->ptid)) |
c906108c | 391 | { |
39f77062 | 392 | tp->ptid = pid_to_ptid (-1); /* Mark it as dead */ |
c906108c SS |
393 | return 0; |
394 | } | |
395 | return 1; | |
396 | } | |
397 | ||
398 | static void | |
fba45db2 | 399 | prune_threads (void) |
c906108c | 400 | { |
d4f3574e | 401 | struct thread_info *tp, *next; |
c906108c | 402 | |
c906108c SS |
403 | for (tp = thread_list; tp; tp = next) |
404 | { | |
405 | next = tp->next; | |
406 | if (!thread_alive (tp)) | |
39f77062 | 407 | delete_thread (tp->ptid); |
c906108c SS |
408 | } |
409 | } | |
410 | ||
411 | /* Print information about currently known threads | |
c5aa993b | 412 | |
c906108c SS |
413 | * Note: this has the drawback that it _really_ switches |
414 | * threads, which frees the frame cache. A no-side | |
415 | * effects info-threads command would be nicer. | |
416 | */ | |
417 | ||
418 | static void | |
fba45db2 | 419 | info_threads_command (char *arg, int from_tty) |
c906108c SS |
420 | { |
421 | struct thread_info *tp; | |
39f77062 | 422 | ptid_t current_ptid; |
c5aa993b | 423 | struct frame_info *cur_frame; |
6e7f8b9c | 424 | int saved_frame_level = frame_relative_level (deprecated_selected_frame); |
c5aa993b | 425 | int counter; |
0d06e24b | 426 | char *extra_info; |
c906108c SS |
427 | |
428 | /* Avoid coredumps which would happen if we tried to access a NULL | |
6e7f8b9c | 429 | deprecated_selected_frame. */ |
c5aa993b JM |
430 | if (!target_has_stack) |
431 | error ("No stack."); | |
c906108c SS |
432 | |
433 | prune_threads (); | |
b83266a0 | 434 | target_find_new_threads (); |
39f77062 | 435 | current_ptid = inferior_ptid; |
c906108c SS |
436 | for (tp = thread_list; tp; tp = tp->next) |
437 | { | |
39f77062 | 438 | if (ptid_equal (tp->ptid, current_ptid)) |
c906108c SS |
439 | printf_filtered ("* "); |
440 | else | |
441 | printf_filtered (" "); | |
442 | ||
443 | #ifdef HPUXHPPA | |
39f77062 | 444 | printf_filtered ("%d %s", tp->num, target_tid_to_str (tp->ptid)); |
c906108c | 445 | #else |
39f77062 | 446 | printf_filtered ("%d %s", tp->num, target_pid_to_str (tp->ptid)); |
c906108c | 447 | #endif |
0d06e24b JM |
448 | |
449 | extra_info = target_extra_thread_info (tp); | |
450 | if (extra_info) | |
451 | printf_filtered (" (%s)", extra_info); | |
452 | puts_filtered (" "); | |
453 | ||
39f77062 | 454 | switch_to_thread (tp->ptid); |
6e7f8b9c | 455 | if (deprecated_selected_frame) |
7789c6f5 | 456 | print_stack_frame (deprecated_selected_frame, -1, 0); |
c906108c SS |
457 | else |
458 | printf_filtered ("[No stack.]\n"); | |
459 | } | |
460 | ||
39f77062 | 461 | switch_to_thread (current_ptid); |
c906108c SS |
462 | |
463 | /* Code below copied from "up_silently_base" in "stack.c". | |
464 | * It restores the frame set by the user before the "info threads" | |
465 | * command. We have finished the info-threads display by switching | |
466 | * back to the current thread. That switch has put us at the top | |
467 | * of the stack (leaf frame). | |
468 | */ | |
c5aa993b | 469 | counter = saved_frame_level; |
6e7f8b9c | 470 | cur_frame = find_relative_frame (deprecated_selected_frame, &counter); |
c906108c SS |
471 | if (counter != 0) |
472 | { | |
473 | /* Ooops, can't restore, tell user where we are. */ | |
474 | warning ("Couldn't restore frame in current thread, at frame 0"); | |
6e7f8b9c | 475 | print_stack_frame (deprecated_selected_frame, -1, 0); |
c906108c SS |
476 | } |
477 | else | |
478 | { | |
0f7d239c | 479 | select_frame (cur_frame); |
c906108c SS |
480 | } |
481 | ||
482 | /* re-show current frame. */ | |
c5aa993b | 483 | show_stack_frame (cur_frame); |
c906108c SS |
484 | } |
485 | ||
486 | /* Switch from one thread to another. */ | |
487 | ||
488 | static void | |
39f77062 | 489 | switch_to_thread (ptid_t ptid) |
c906108c | 490 | { |
39f77062 | 491 | if (ptid_equal (ptid, inferior_ptid)) |
c906108c SS |
492 | return; |
493 | ||
39f77062 | 494 | inferior_ptid = ptid; |
c906108c SS |
495 | flush_cached_frames (); |
496 | registers_changed (); | |
c5aa993b | 497 | stop_pc = read_pc (); |
0f7d239c | 498 | select_frame (get_current_frame ()); |
c906108c SS |
499 | } |
500 | ||
501 | static void | |
39f77062 | 502 | restore_current_thread (ptid_t ptid) |
c906108c | 503 | { |
6949171e | 504 | if (!ptid_equal (ptid, inferior_ptid)) |
c906108c | 505 | { |
39f77062 | 506 | switch_to_thread (ptid); |
c5aa993b | 507 | print_stack_frame (get_current_frame (), 0, -1); |
c906108c SS |
508 | } |
509 | } | |
510 | ||
6ecce94d AC |
511 | struct current_thread_cleanup |
512 | { | |
39f77062 | 513 | ptid_t inferior_ptid; |
6ecce94d AC |
514 | }; |
515 | ||
516 | static void | |
517 | do_restore_current_thread_cleanup (void *arg) | |
518 | { | |
519 | struct current_thread_cleanup *old = arg; | |
39f77062 | 520 | restore_current_thread (old->inferior_ptid); |
b8c9b27d | 521 | xfree (old); |
6ecce94d AC |
522 | } |
523 | ||
524 | static struct cleanup * | |
39f77062 | 525 | make_cleanup_restore_current_thread (ptid_t inferior_ptid) |
6ecce94d AC |
526 | { |
527 | struct current_thread_cleanup *old | |
528 | = xmalloc (sizeof (struct current_thread_cleanup)); | |
39f77062 | 529 | old->inferior_ptid = inferior_ptid; |
6ecce94d AC |
530 | return make_cleanup (do_restore_current_thread_cleanup, old); |
531 | } | |
532 | ||
c906108c SS |
533 | /* Apply a GDB command to a list of threads. List syntax is a whitespace |
534 | seperated list of numbers, or ranges, or the keyword `all'. Ranges consist | |
535 | of two numbers seperated by a hyphen. Examples: | |
536 | ||
c5aa993b JM |
537 | thread apply 1 2 7 4 backtrace Apply backtrace cmd to threads 1,2,7,4 |
538 | thread apply 2-7 9 p foo(1) Apply p foo(1) cmd to threads 2->7 & 9 | |
539 | thread apply all p x/i $pc Apply x/i $pc cmd to all threads | |
540 | */ | |
c906108c SS |
541 | |
542 | static void | |
fba45db2 | 543 | thread_apply_all_command (char *cmd, int from_tty) |
c906108c SS |
544 | { |
545 | struct thread_info *tp; | |
546 | struct cleanup *old_chain; | |
e35ce267 CF |
547 | struct cleanup *saved_cmd_cleanup_chain; |
548 | char *saved_cmd; | |
c906108c SS |
549 | |
550 | if (cmd == NULL || *cmd == '\000') | |
551 | error ("Please specify a command following the thread ID list"); | |
552 | ||
39f77062 | 553 | old_chain = make_cleanup_restore_current_thread (inferior_ptid); |
c906108c | 554 | |
e9d196c5 MS |
555 | /* It is safe to update the thread list now, before |
556 | traversing it for "thread apply all". MVS */ | |
557 | target_find_new_threads (); | |
558 | ||
e35ce267 CF |
559 | /* Save a copy of the command in case it is clobbered by |
560 | execute_command */ | |
5b616ba1 | 561 | saved_cmd = xstrdup (cmd); |
b8c9b27d | 562 | saved_cmd_cleanup_chain = make_cleanup (xfree, (void *) saved_cmd); |
c906108c SS |
563 | for (tp = thread_list; tp; tp = tp->next) |
564 | if (thread_alive (tp)) | |
565 | { | |
39f77062 | 566 | switch_to_thread (tp->ptid); |
c906108c SS |
567 | #ifdef HPUXHPPA |
568 | printf_filtered ("\nThread %d (%s):\n", | |
6949171e | 569 | tp->num, target_tid_to_str (inferior_ptid)); |
c906108c SS |
570 | #else |
571 | printf_filtered ("\nThread %d (%s):\n", tp->num, | |
39f77062 | 572 | target_pid_to_str (inferior_ptid)); |
c906108c SS |
573 | #endif |
574 | execute_command (cmd, from_tty); | |
6949171e | 575 | strcpy (cmd, saved_cmd); /* Restore exact command used previously */ |
c906108c | 576 | } |
6ecce94d | 577 | |
e35ce267 | 578 | do_cleanups (saved_cmd_cleanup_chain); |
6ecce94d | 579 | do_cleanups (old_chain); |
c906108c SS |
580 | } |
581 | ||
582 | static void | |
fba45db2 | 583 | thread_apply_command (char *tidlist, int from_tty) |
c906108c SS |
584 | { |
585 | char *cmd; | |
586 | char *p; | |
587 | struct cleanup *old_chain; | |
e35ce267 CF |
588 | struct cleanup *saved_cmd_cleanup_chain; |
589 | char *saved_cmd; | |
c906108c SS |
590 | |
591 | if (tidlist == NULL || *tidlist == '\000') | |
592 | error ("Please specify a thread ID list"); | |
593 | ||
c5aa993b | 594 | for (cmd = tidlist; *cmd != '\000' && !isalpha (*cmd); cmd++); |
c906108c SS |
595 | |
596 | if (*cmd == '\000') | |
597 | error ("Please specify a command following the thread ID list"); | |
598 | ||
39f77062 | 599 | old_chain = make_cleanup_restore_current_thread (inferior_ptid); |
c906108c | 600 | |
e35ce267 CF |
601 | /* Save a copy of the command in case it is clobbered by |
602 | execute_command */ | |
5b616ba1 | 603 | saved_cmd = xstrdup (cmd); |
b8c9b27d | 604 | saved_cmd_cleanup_chain = make_cleanup (xfree, (void *) saved_cmd); |
c906108c SS |
605 | while (tidlist < cmd) |
606 | { | |
607 | struct thread_info *tp; | |
608 | int start, end; | |
609 | ||
610 | start = strtol (tidlist, &p, 10); | |
611 | if (p == tidlist) | |
612 | error ("Error parsing %s", tidlist); | |
613 | tidlist = p; | |
614 | ||
615 | while (*tidlist == ' ' || *tidlist == '\t') | |
616 | tidlist++; | |
617 | ||
618 | if (*tidlist == '-') /* Got a range of IDs? */ | |
619 | { | |
c5aa993b | 620 | tidlist++; /* Skip the - */ |
c906108c SS |
621 | end = strtol (tidlist, &p, 10); |
622 | if (p == tidlist) | |
623 | error ("Error parsing %s", tidlist); | |
624 | tidlist = p; | |
625 | ||
626 | while (*tidlist == ' ' || *tidlist == '\t') | |
627 | tidlist++; | |
628 | } | |
629 | else | |
630 | end = start; | |
631 | ||
632 | for (; start <= end; start++) | |
633 | { | |
634 | tp = find_thread_id (start); | |
635 | ||
636 | if (!tp) | |
637 | warning ("Unknown thread %d.", start); | |
638 | else if (!thread_alive (tp)) | |
639 | warning ("Thread %d has terminated.", start); | |
640 | else | |
641 | { | |
39f77062 | 642 | switch_to_thread (tp->ptid); |
c906108c SS |
643 | #ifdef HPUXHPPA |
644 | printf_filtered ("\nThread %d (%s):\n", tp->num, | |
39f77062 | 645 | target_tid_to_str (inferior_ptid)); |
c906108c SS |
646 | #else |
647 | printf_filtered ("\nThread %d (%s):\n", tp->num, | |
39f77062 | 648 | target_pid_to_str (inferior_ptid)); |
c906108c SS |
649 | #endif |
650 | execute_command (cmd, from_tty); | |
e35ce267 | 651 | strcpy (cmd, saved_cmd); /* Restore exact command used previously */ |
c906108c SS |
652 | } |
653 | } | |
654 | } | |
6ecce94d | 655 | |
e35ce267 | 656 | do_cleanups (saved_cmd_cleanup_chain); |
6ecce94d | 657 | do_cleanups (old_chain); |
c906108c SS |
658 | } |
659 | ||
660 | /* Switch to the specified thread. Will dispatch off to thread_apply_command | |
661 | if prefix of arg is `apply'. */ | |
662 | ||
663 | static void | |
fba45db2 | 664 | thread_command (char *tidstr, int from_tty) |
c906108c | 665 | { |
c906108c SS |
666 | if (!tidstr) |
667 | { | |
668 | /* Don't generate an error, just say which thread is current. */ | |
669 | if (target_has_stack) | |
670 | printf_filtered ("[Current thread is %d (%s)]\n", | |
39f77062 | 671 | pid_to_thread_id (inferior_ptid), |
c906108c | 672 | #if defined(HPUXHPPA) |
39f77062 | 673 | target_tid_to_str (inferior_ptid) |
c906108c | 674 | #else |
39f77062 | 675 | target_pid_to_str (inferior_ptid) |
c906108c | 676 | #endif |
c5aa993b | 677 | ); |
c906108c SS |
678 | else |
679 | error ("No stack."); | |
680 | return; | |
681 | } | |
c5394b80 | 682 | |
2b65245e | 683 | gdb_thread_select (uiout, tidstr); |
c5394b80 JM |
684 | } |
685 | ||
686 | static int | |
6949171e | 687 | do_captured_thread_select (struct ui_out *uiout, void *tidstr) |
c5394b80 JM |
688 | { |
689 | int num; | |
690 | struct thread_info *tp; | |
691 | ||
81490ea1 | 692 | num = value_as_long (parse_and_eval (tidstr)); |
c906108c SS |
693 | |
694 | tp = find_thread_id (num); | |
695 | ||
8b93c638 JM |
696 | if (!tp) |
697 | error ("Thread ID %d not known.", num); | |
c906108c SS |
698 | |
699 | if (!thread_alive (tp)) | |
700 | error ("Thread ID %d has terminated.\n", num); | |
701 | ||
39f77062 | 702 | switch_to_thread (tp->ptid); |
c906108c | 703 | |
8b93c638 | 704 | ui_out_text (uiout, "[Switching to thread "); |
39f77062 | 705 | ui_out_field_int (uiout, "new-thread-id", pid_to_thread_id (inferior_ptid)); |
8b93c638 JM |
706 | ui_out_text (uiout, " ("); |
707 | #if defined(HPUXHPPA) | |
39f77062 | 708 | ui_out_text (uiout, target_tid_to_str (inferior_ptid)); |
8b93c638 | 709 | #else |
39f77062 | 710 | ui_out_text (uiout, target_pid_to_str (inferior_ptid)); |
8b93c638 JM |
711 | #endif |
712 | ui_out_text (uiout, ")]"); | |
c5394b80 | 713 | |
6e7f8b9c AC |
714 | print_stack_frame (deprecated_selected_frame, |
715 | frame_relative_level (deprecated_selected_frame), 1); | |
c5394b80 JM |
716 | return GDB_RC_OK; |
717 | } | |
718 | ||
719 | enum gdb_rc | |
6949171e | 720 | gdb_thread_select (struct ui_out *uiout, char *tidstr) |
c5394b80 | 721 | { |
2b65245e AC |
722 | return catch_exceptions (uiout, do_captured_thread_select, tidstr, |
723 | NULL, RETURN_MASK_ALL); | |
c906108c SS |
724 | } |
725 | ||
726 | /* Commands with a prefix of `thread'. */ | |
727 | struct cmd_list_element *thread_cmd_list = NULL; | |
728 | ||
729 | void | |
fba45db2 | 730 | _initialize_thread (void) |
c906108c SS |
731 | { |
732 | static struct cmd_list_element *thread_apply_list = NULL; | |
c906108c SS |
733 | |
734 | add_info ("threads", info_threads_command, | |
735 | "IDs of currently known threads."); | |
736 | ||
737 | add_prefix_cmd ("thread", class_run, thread_command, | |
738 | "Use this command to switch between threads.\n\ | |
6949171e | 739 | The new thread ID must be currently known.", &thread_cmd_list, "thread ", 1, &cmdlist); |
c906108c SS |
740 | |
741 | add_prefix_cmd ("apply", class_run, thread_apply_command, | |
742 | "Apply a command to a list of threads.", | |
743 | &thread_apply_list, "apply ", 1, &thread_cmd_list); | |
744 | ||
745 | add_cmd ("all", class_run, thread_apply_all_command, | |
6949171e | 746 | "Apply a command to all threads.", &thread_apply_list); |
c906108c SS |
747 | |
748 | if (!xdb_commands) | |
749 | add_com_alias ("t", "thread", class_run, 1); | |
750 | } |