Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Multi-process/thread control defs for GDB, the GNU debugger. |
32d0add0 | 2 | Copyright (C) 1987-2015 Free Software Foundation, Inc. |
b6ba6518 KB |
3 | Contributed by Lynx Real-Time Systems, Inc. Los Gatos, CA. |
4 | ||
c906108c | 5 | |
c5aa993b | 6 | This file is part of GDB. |
c906108c | 7 | |
c5aa993b JM |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 11 | (at your option) any later version. |
c906108c | 12 | |
c5aa993b JM |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
c906108c | 17 | |
c5aa993b | 18 | You should have received a copy of the GNU General Public License |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
20 | |
21 | #ifndef GDBTHREAD_H | |
22 | #define GDBTHREAD_H | |
23 | ||
da3331ec AC |
24 | struct symtab; |
25 | ||
c906108c | 26 | #include "breakpoint.h" |
aa0cd9c1 | 27 | #include "frame.h" |
8e8901c5 | 28 | #include "ui-out.h" |
a474d7c2 | 29 | #include "inferior.h" |
02d27625 | 30 | #include "btrace.h" |
6c659fc2 | 31 | #include "common/vec.h" |
372316f1 | 32 | #include "target/waitstatus.h" |
8e8901c5 | 33 | |
30596231 PA |
34 | /* Frontend view of the thread state. Possible extensions: stepping, |
35 | finishing, until(ling),... */ | |
36 | enum thread_state | |
37 | { | |
38 | THREAD_STOPPED, | |
39 | THREAD_RUNNING, | |
40 | THREAD_EXITED, | |
41 | }; | |
42 | ||
16c381f0 | 43 | /* Inferior thread specific part of `struct infcall_control_state'. |
8ea051c5 | 44 | |
16c381f0 | 45 | Inferior process counterpart is `struct inferior_control_state'. */ |
8ea051c5 | 46 | |
16c381f0 JK |
47 | struct thread_control_state |
48 | { | |
4e1c45ea PA |
49 | /* User/external stepping state. */ |
50 | ||
8358c15c JK |
51 | /* Step-resume or longjmp-resume breakpoint. */ |
52 | struct breakpoint *step_resume_breakpoint; | |
53 | ||
186c406b TT |
54 | /* Exception-resume breakpoint. */ |
55 | struct breakpoint *exception_resume_breakpoint; | |
56 | ||
34b7e8a6 PA |
57 | /* Breakpoints used for software single stepping. Plural, because |
58 | it may have multiple locations. E.g., if stepping over a | |
59 | conditional branch instruction we can't decode the condition for, | |
60 | we'll need to put a breakpoint at the branch destination, and | |
61 | another at the instruction after the branch. */ | |
62 | struct breakpoint *single_step_breakpoints; | |
63 | ||
4e1c45ea PA |
64 | /* Range to single step within. |
65 | ||
66 | If this is nonzero, respond to a single-step signal by continuing | |
67 | to step if the pc is in this range. | |
68 | ||
69 | If step_range_start and step_range_end are both 1, it means to | |
70 | step for a single instruction (FIXME: it might clean up | |
71 | wait_for_inferior in a minor way if this were changed to the | |
72 | address of the instruction and that address plus one. But maybe | |
0963b4bd | 73 | not). */ |
4e1c45ea PA |
74 | CORE_ADDR step_range_start; /* Inclusive */ |
75 | CORE_ADDR step_range_end; /* Exclusive */ | |
76 | ||
885eeb5b PA |
77 | /* Function the thread was in as of last it started stepping. */ |
78 | struct symbol *step_start_function; | |
79 | ||
c1e36e3e PA |
80 | /* If GDB issues a target step request, and this is nonzero, the |
81 | target should single-step this thread once, and then continue | |
82 | single-stepping it without GDB core involvement as long as the | |
83 | thread stops in the step range above. If this is zero, the | |
84 | target should ignore the step range, and only issue one single | |
85 | step. */ | |
86 | int may_range_step; | |
87 | ||
4e1c45ea PA |
88 | /* Stack frame address as of when stepping command was issued. |
89 | This is how we know when we step into a subroutine call, and how | |
90 | to set the frame for the breakpoint used to step out. */ | |
aa0cd9c1 | 91 | struct frame_id step_frame_id; |
edb3359d DJ |
92 | |
93 | /* Similarly, the frame ID of the underlying stack frame (skipping | |
94 | any inlined frames). */ | |
95 | struct frame_id step_stack_frame_id; | |
96 | ||
4e1c45ea PA |
97 | /* Nonzero if we are presently stepping over a breakpoint. |
98 | ||
99 | If we hit a breakpoint or watchpoint, and then continue, we need | |
100 | to single step the current thread with breakpoints disabled, to | |
101 | avoid hitting the same breakpoint or watchpoint again. And we | |
102 | should step just a single thread and keep other threads stopped, | |
103 | so that other threads don't miss breakpoints while they are | |
104 | removed. | |
105 | ||
106 | So, this variable simultaneously means that we need to single | |
107 | step the current thread, keep other threads stopped, and that | |
108 | breakpoints should be removed while we step. | |
109 | ||
110 | This variable is set either: | |
111 | - in proceed, when we resume inferior on user's explicit request | |
112 | - in keep_going, if handle_inferior_event decides we need to | |
113 | step over breakpoint. | |
114 | ||
115 | The variable is cleared in normal_stop. The proceed calls | |
116 | wait_for_inferior, which calls handle_inferior_event in a loop, | |
117 | and until wait_for_inferior exits, this variable is changed only | |
118 | by keep_going. */ | |
0d06e24b | 119 | int trap_expected; |
4e1c45ea | 120 | |
16c381f0 | 121 | /* Nonzero if the thread is being proceeded for a "finish" command |
46c03469 | 122 | or a similar situation when return value should be printed. */ |
16c381f0 JK |
123 | int proceed_to_finish; |
124 | ||
125 | /* Nonzero if the thread is being proceeded for an inferior function | |
126 | call. */ | |
127 | int in_infcall; | |
128 | ||
129 | enum step_over_calls_kind step_over_calls; | |
130 | ||
131 | /* Nonzero if stopped due to a step command. */ | |
132 | int stop_step; | |
133 | ||
134 | /* Chain containing status of breakpoint(s) the thread stopped | |
135 | at. */ | |
136 | bpstat stop_bpstat; | |
17b2616c PA |
137 | |
138 | /* The interpreter that issued the execution command. NULL if the | |
139 | thread was resumed as a result of a command applied to some other | |
140 | thread (e.g., "next" with scheduler-locking off). */ | |
141 | struct interp *command_interp; | |
856e7dd6 PA |
142 | |
143 | /* Whether the command that started the thread was a stepping | |
144 | command. This is used to decide whether "set scheduler-locking | |
145 | step" behaves like "on" or "off". */ | |
146 | int stepping_command; | |
16c381f0 JK |
147 | }; |
148 | ||
a38fe4fe | 149 | /* Inferior thread specific part of `struct infcall_suspend_state'. */ |
16c381f0 JK |
150 | |
151 | struct thread_suspend_state | |
152 | { | |
70509625 PA |
153 | /* Last signal that the inferior received (why it stopped). When |
154 | the thread is resumed, this signal is delivered. Note: the | |
155 | target should not check whether the signal is in pass state, | |
156 | because the signal may have been explicitly passed with the | |
157 | "signal" command, which overrides "handle nopass". If the signal | |
158 | should be suppressed, the core will take care of clearing this | |
159 | before the target is resumed. */ | |
2ea28649 | 160 | enum gdb_signal stop_signal; |
372316f1 PA |
161 | |
162 | /* The reason the thread last stopped, if we need to track it | |
163 | (breakpoint, watchpoint, etc.) */ | |
164 | enum target_stop_reason stop_reason; | |
165 | ||
166 | /* The waitstatus for this thread's last event. */ | |
167 | struct target_waitstatus waitstatus; | |
168 | /* If true WAITSTATUS hasn't been handled yet. */ | |
169 | int waitstatus_pending_p; | |
170 | ||
171 | /* Record the pc of the thread the last time it stopped. (This is | |
172 | not the current thread's PC as that may have changed since the | |
173 | last stop, e.g., "return" command, or "p $pc = 0xf000"). This is | |
174 | used in coordination with stop_reason and waitstatus_pending_p: | |
175 | if the thread's PC is changed since it last stopped, a pending | |
176 | breakpoint waitstatus is discarded. */ | |
177 | CORE_ADDR stop_pc; | |
16c381f0 JK |
178 | }; |
179 | ||
6c659fc2 SC |
180 | typedef struct value *value_ptr; |
181 | DEF_VEC_P (value_ptr); | |
182 | typedef VEC (value_ptr) value_vec; | |
183 | ||
16c381f0 JK |
184 | struct thread_info |
185 | { | |
186 | struct thread_info *next; | |
187 | ptid_t ptid; /* "Actual process id"; | |
188 | In fact, this may be overloaded with | |
189 | kernel thread id, etc. */ | |
190 | int num; /* Convenient handle (GDB thread id) */ | |
191 | ||
4694da01 TT |
192 | /* The name of the thread, as specified by the user. This is NULL |
193 | if the thread does not have a user-given name. */ | |
194 | char *name; | |
195 | ||
16c381f0 JK |
196 | /* Non-zero means the thread is executing. Note: this is different |
197 | from saying that there is an active target and we are stopped at | |
198 | a breakpoint, for instance. This is a real indicator whether the | |
199 | thread is off and running. */ | |
30596231 | 200 | int executing; |
16c381f0 | 201 | |
372316f1 PA |
202 | /* Non-zero if this thread is resumed from infrun's perspective. |
203 | Note that a thread can be marked both as not-executing and | |
204 | resumed at the same time. This happens if we try to resume a | |
205 | thread that has a wait status pending. We shouldn't let the | |
206 | thread really run until that wait status has been processed, but | |
207 | we should not process that wait status if we didn't try to let | |
208 | the thread run. */ | |
209 | int resumed; | |
210 | ||
f6e29b6e YQ |
211 | /* Frontend view of the thread state. Note that the THREAD_RUNNING/ |
212 | THREAD_STOPPED states are different from EXECUTING. When the | |
213 | thread is stopped internally while handling an internal event, | |
214 | like a software single-step breakpoint, EXECUTING will be false, | |
215 | but STATE will still be THREAD_RUNNING. */ | |
216 | enum thread_state state; | |
16c381f0 JK |
217 | |
218 | /* If this is > 0, then it means there's code out there that relies | |
219 | on this thread being listed. Don't delete it from the lists even | |
220 | if we detect it exiting. */ | |
221 | int refcount; | |
222 | ||
223 | /* State of GDB control of inferior thread execution. | |
224 | See `struct thread_control_state'. */ | |
225 | struct thread_control_state control; | |
226 | ||
227 | /* State of inferior thread to restore after GDB is done with an inferior | |
228 | call. See `struct thread_suspend_state'. */ | |
229 | struct thread_suspend_state suspend; | |
230 | ||
16c381f0 JK |
231 | int current_line; |
232 | struct symtab *current_symtab; | |
233 | ||
234 | /* Internal stepping state. */ | |
235 | ||
4d9d9d04 PA |
236 | /* Record the pc of the thread the last time it was resumed. (It |
237 | can't be done on stop as the PC may change since the last stop, | |
238 | e.g., "return" command, or "p $pc = 0xf000"). This is maintained | |
239 | by proceed and keep_going, and among other things, it's used in | |
16c381f0 JK |
240 | adjust_pc_after_break to distinguish a hardware single-step |
241 | SIGTRAP from a breakpoint SIGTRAP. */ | |
242 | CORE_ADDR prev_pc; | |
243 | ||
7f5ef605 PA |
244 | /* Did we set the thread stepping a breakpoint instruction? This is |
245 | used in conjunction with PREV_PC to decide whether to adjust the | |
246 | PC. */ | |
247 | int stepped_breakpoint; | |
248 | ||
4e1c45ea | 249 | /* Should we step over breakpoint next time keep_going is called? */ |
ca67fcb8 | 250 | int stepping_over_breakpoint; |
0d06e24b | 251 | |
963f9c80 PA |
252 | /* Should we step over a watchpoint next time keep_going is called? |
253 | This is needed on targets with non-continuable, non-steppable | |
254 | watchpoints. */ | |
255 | int stepping_over_watchpoint; | |
256 | ||
4e1c45ea | 257 | /* Set to TRUE if we should finish single-stepping over a breakpoint |
6aa27652 YQ |
258 | after hitting the current step-resume breakpoint. The context here |
259 | is that GDB is to do `next' or `step' while signal arrives. | |
260 | When stepping over a breakpoint and signal arrives, GDB will attempt | |
261 | to skip signal handler, so it inserts a step_resume_breakpoint at the | |
262 | signal return address, and resume inferior. | |
263 | step_after_step_resume_breakpoint is set to TRUE at this moment in | |
264 | order to keep GDB in mind that there is still a breakpoint to step over | |
265 | when GDB gets back SIGTRAP from step_resume_breakpoint. */ | |
4e1c45ea PA |
266 | int step_after_step_resume_breakpoint; |
267 | ||
243a9253 PA |
268 | /* Pointer to the state machine manager object that handles what is |
269 | left to do for the thread's execution command after the target | |
270 | stops. Several execution commands use it. */ | |
271 | struct thread_fsm *thread_fsm; | |
a474d7c2 | 272 | |
e58b0e63 PA |
273 | /* This is used to remember when a fork or vfork event was caught by |
274 | a catchpoint, and thus the event is to be followed at the next | |
275 | resume of the thread, and not immediately. */ | |
276 | struct target_waitstatus pending_follow; | |
277 | ||
252fbfc8 PA |
278 | /* True if this thread has been explicitly requested to stop. */ |
279 | int stop_requested; | |
280 | ||
186c406b | 281 | /* The initiating frame of a nexting operation, used for deciding |
e2e4d78b JK |
282 | which exceptions to intercept. If it is null_frame_id no |
283 | bp_longjmp or bp_exception but longjmp has been caught just for | |
284 | bp_longjmp_call_dummy. */ | |
186c406b TT |
285 | struct frame_id initiating_frame; |
286 | ||
0d06e24b | 287 | /* Private data used by the target vector implementation. */ |
fe978cb0 | 288 | struct private_thread_info *priv; |
dc146f7c VP |
289 | |
290 | /* Function that is called to free PRIVATE. If this is NULL, then | |
291 | xfree will be called on PRIVATE. */ | |
292 | void (*private_dtor) (struct private_thread_info *); | |
02d27625 MM |
293 | |
294 | /* Branch trace information for this thread. */ | |
295 | struct btrace_thread_info btrace; | |
6c659fc2 SC |
296 | |
297 | /* Flag which indicates that the stack temporaries should be stored while | |
298 | evaluating expressions. */ | |
299 | int stack_temporaries_enabled; | |
300 | ||
301 | /* Values that are stored as temporaries on stack while evaluating | |
302 | expressions. */ | |
303 | value_vec *stack_temporaries; | |
c2829269 PA |
304 | |
305 | /* Step-over chain. A thread is in the step-over queue if these are | |
306 | non-NULL. If only a single thread is in the chain, then these | |
307 | fields point to self. */ | |
308 | struct thread_info *step_over_prev; | |
309 | struct thread_info *step_over_next; | |
0d06e24b JM |
310 | }; |
311 | ||
312 | /* Create an empty thread list, or empty the existing one. */ | |
313 | extern void init_thread_list (void); | |
314 | ||
93815fbf VP |
315 | /* Add a thread to the thread list, print a message |
316 | that a new thread is found, and return the pointer to | |
317 | the new thread. Caller my use this pointer to | |
318 | initialize the private thread data. */ | |
39f77062 | 319 | extern struct thread_info *add_thread (ptid_t ptid); |
0d06e24b | 320 | |
93815fbf VP |
321 | /* Same as add_thread, but does not print a message |
322 | about new thread. */ | |
323 | extern struct thread_info *add_thread_silent (ptid_t ptid); | |
324 | ||
17faa917 DJ |
325 | /* Same as add_thread, and sets the private info. */ |
326 | extern struct thread_info *add_thread_with_info (ptid_t ptid, | |
327 | struct private_thread_info *); | |
328 | ||
0d06e24b | 329 | /* Delete an existing thread list entry. */ |
39f77062 | 330 | extern void delete_thread (ptid_t); |
0d06e24b | 331 | |
5e0b29c1 PA |
332 | /* Delete an existing thread list entry, and be quiet about it. Used |
333 | after the process this thread having belonged to having already | |
334 | exited, for example. */ | |
335 | extern void delete_thread_silent (ptid_t); | |
336 | ||
0963b4bd | 337 | /* Delete a step_resume_breakpoint from the thread database. */ |
4e1c45ea | 338 | extern void delete_step_resume_breakpoint (struct thread_info *); |
8601f500 | 339 | |
0963b4bd | 340 | /* Delete an exception_resume_breakpoint from the thread database. */ |
186c406b TT |
341 | extern void delete_exception_resume_breakpoint (struct thread_info *); |
342 | ||
34b7e8a6 PA |
343 | /* Delete the single-step breakpoints of thread TP, if any. */ |
344 | extern void delete_single_step_breakpoints (struct thread_info *tp); | |
345 | ||
346 | /* Check if the thread has software single stepping breakpoints | |
347 | set. */ | |
348 | extern int thread_has_single_step_breakpoints_set (struct thread_info *tp); | |
349 | ||
350 | /* Check whether the thread has software single stepping breakpoints | |
351 | set at PC. */ | |
352 | extern int thread_has_single_step_breakpoint_here (struct thread_info *tp, | |
353 | struct address_space *aspace, | |
354 | CORE_ADDR addr); | |
355 | ||
0d06e24b JM |
356 | /* Translate the integer thread id (GDB's homegrown id, not the system's) |
357 | into a "pid" (which may be overloaded with extra thread information). */ | |
39f77062 | 358 | extern ptid_t thread_id_to_pid (int); |
0d06e24b JM |
359 | |
360 | /* Translate a 'pid' (which may be overloaded with extra thread information) | |
361 | into the integer thread id (GDB's homegrown id, not the system's). */ | |
39f77062 | 362 | extern int pid_to_thread_id (ptid_t ptid); |
0d06e24b JM |
363 | |
364 | /* Boolean test for an already-known pid (which may be overloaded with | |
365 | extra thread information). */ | |
39f77062 | 366 | extern int in_thread_list (ptid_t ptid); |
0d06e24b JM |
367 | |
368 | /* Boolean test for an already-known thread id (GDB's homegrown id, | |
369 | not the system's). */ | |
370 | extern int valid_thread_id (int thread); | |
371 | ||
372 | /* Search function to lookup a thread by 'pid'. */ | |
e09875d4 | 373 | extern struct thread_info *find_thread_ptid (ptid_t ptid); |
0d06e24b | 374 | |
1e92afda VP |
375 | /* Find thread by GDB user-visible thread number. */ |
376 | struct thread_info *find_thread_id (int num); | |
377 | ||
bad34192 PA |
378 | /* Finds the first thread of the inferior given by PID. If PID is -1, |
379 | returns the first thread in the list. */ | |
380 | struct thread_info *first_thread_of_process (int pid); | |
381 | ||
32990ada PA |
382 | /* Returns any thread of process PID, giving preference to the current |
383 | thread. */ | |
2277426b PA |
384 | extern struct thread_info *any_thread_of_process (int pid); |
385 | ||
32990ada PA |
386 | /* Returns any non-exited thread of process PID, giving preference to |
387 | the current thread, and to not executing threads. */ | |
6c95b8df PA |
388 | extern struct thread_info *any_live_thread_of_process (int pid); |
389 | ||
5231c1fd PA |
390 | /* Change the ptid of thread OLD_PTID to NEW_PTID. */ |
391 | void thread_change_ptid (ptid_t old_ptid, ptid_t new_ptid); | |
392 | ||
0d06e24b JM |
393 | /* Iterator function to call a user-provided callback function |
394 | once for each known thread. */ | |
395 | typedef int (*thread_callback_func) (struct thread_info *, void *); | |
396 | extern struct thread_info *iterate_over_threads (thread_callback_func, void *); | |
397 | ||
034f788c PA |
398 | /* Traverse all threads, except those that have THREAD_EXITED |
399 | state. */ | |
e5ef252a | 400 | |
034f788c PA |
401 | #define ALL_NON_EXITED_THREADS(T) \ |
402 | for (T = thread_list; T; T = T->next) \ | |
403 | if ((T)->state != THREAD_EXITED) | |
e5ef252a | 404 | |
8a06aea7 PA |
405 | /* Traverse all threads, including those that have THREAD_EXITED |
406 | state. Allows deleting the currently iterated thread. */ | |
407 | #define ALL_THREADS_SAFE(T, TMP) \ | |
ab970af1 PA |
408 | for ((T) = thread_list; \ |
409 | (T) != NULL ? ((TMP) = (T)->next, 1): 0; \ | |
8a06aea7 | 410 | (T) = (TMP)) |
ab970af1 | 411 | |
20874c92 VP |
412 | extern int thread_count (void); |
413 | ||
6a6b96b9 UW |
414 | /* Switch from one thread to another. */ |
415 | extern void switch_to_thread (ptid_t ptid); | |
416 | ||
372316f1 PA |
417 | /* Marks or clears thread(s) PTID as resumed. If PTID is |
418 | MINUS_ONE_PTID, applies to all threads. If ptid_is_pid(PTID) is | |
419 | true, applies to all threads of the process pointed at by PTID. */ | |
420 | extern void set_resumed (ptid_t ptid, int resumed); | |
421 | ||
e1ac3328 | 422 | /* Marks thread PTID is running, or stopped. |
28153fd3 | 423 | If PTID is minus_one_ptid, marks all threads. */ |
e1ac3328 VP |
424 | extern void set_running (ptid_t ptid, int running); |
425 | ||
252fbfc8 PA |
426 | /* Marks or clears thread(s) PTID as having been requested to stop. |
427 | If PTID is MINUS_ONE_PTID, applies to all threads. If | |
428 | ptid_is_pid(PTID) is true, applies to all threads of the process | |
429 | pointed at by PTID. If STOP, then the THREAD_STOP_REQUESTED | |
430 | observer is called with PTID as argument. */ | |
431 | extern void set_stop_requested (ptid_t ptid, int stop); | |
432 | ||
0d6431e2 PA |
433 | /* NOTE: Since the thread state is not a boolean, most times, you do |
434 | not want to check it with negation. If you really want to check if | |
435 | the thread is stopped, | |
e1ac3328 | 436 | |
0d6431e2 PA |
437 | use (good): |
438 | ||
439 | if (is_stopped (ptid)) | |
440 | ||
441 | instead of (bad): | |
442 | ||
443 | if (!is_running (ptid)) | |
444 | ||
445 | The latter also returns true on exited threads, most likelly not | |
446 | what you want. */ | |
447 | ||
448 | /* Reports if in the frontend's perpective, thread PTID is running. */ | |
449 | extern int is_running (ptid_t ptid); | |
8ea051c5 | 450 | |
4f8d22e3 PA |
451 | /* Is this thread listed, but known to have exited? We keep it listed |
452 | (but not visible) until it's safe to delete. */ | |
453 | extern int is_exited (ptid_t ptid); | |
454 | ||
0d6431e2 | 455 | /* In the frontend's perpective, is this thread stopped? */ |
4f8d22e3 PA |
456 | extern int is_stopped (ptid_t ptid); |
457 | ||
28153fd3 | 458 | /* Marks thread PTID as executing, or not. If PTID is minus_one_ptid, |
0d6431e2 PA |
459 | marks all threads. |
460 | ||
461 | Note that this is different from the running state. See the | |
30596231 | 462 | description of state and executing fields of struct |
0d6431e2 | 463 | thread_info. */ |
8ea051c5 PA |
464 | extern void set_executing (ptid_t ptid, int executing); |
465 | ||
466 | /* Reports if thread PTID is executing. */ | |
467 | extern int is_executing (ptid_t ptid); | |
468 | ||
b57bacec PA |
469 | /* True if any (known or unknown) thread is or may be executing. */ |
470 | extern int threads_are_executing (void); | |
471 | ||
29f49a6a PA |
472 | /* Merge the executing property of thread PTID over to its thread |
473 | state property (frontend running/stopped view). | |
474 | ||
475 | "not executing" -> "stopped" | |
476 | "executing" -> "running" | |
477 | "exited" -> "exited" | |
478 | ||
28153fd3 | 479 | If PTID is minus_one_ptid, go over all threads. |
29f49a6a PA |
480 | |
481 | Notifications are only emitted if the thread state did change. */ | |
482 | extern void finish_thread_state (ptid_t ptid); | |
483 | ||
484 | /* Same as FINISH_THREAD_STATE, but with an interface suitable to be | |
485 | registered as a cleanup. PTID_P points to the ptid_t that is | |
486 | passed to FINISH_THREAD_STATE. */ | |
487 | extern void finish_thread_state_cleanup (void *ptid_p); | |
488 | ||
c906108c SS |
489 | /* Commands with a prefix of `thread'. */ |
490 | extern struct cmd_list_element *thread_cmd_list; | |
491 | ||
f0e8c4c5 JK |
492 | extern void thread_command (char *tidstr, int from_tty); |
493 | ||
93815fbf VP |
494 | /* Print notices on thread events (attach, detach, etc.), set with |
495 | `set print thread-events'. */ | |
496 | extern int print_thread_events; | |
497 | ||
aea5b279 | 498 | extern void print_thread_info (struct ui_out *uiout, char *threads, |
3ee1c036 | 499 | int pid); |
8e8901c5 | 500 | |
4f8d22e3 | 501 | extern struct cleanup *make_cleanup_restore_current_thread (void); |
6208b47d | 502 | |
4e1c45ea PA |
503 | /* Returns a pointer into the thread_info corresponding to |
504 | INFERIOR_PTID. INFERIOR_PTID *must* be in the thread list. */ | |
505 | extern struct thread_info* inferior_thread (void); | |
6208b47d | 506 | |
dc146f7c VP |
507 | extern void update_thread_list (void); |
508 | ||
e8032dde PA |
509 | /* Delete any thread the target says is no longer alive. */ |
510 | ||
511 | extern void prune_threads (void); | |
512 | ||
8a06aea7 PA |
513 | /* Delete threads marked THREAD_EXITED. Unlike prune_threads, this |
514 | does not consult the target about whether the thread is alive right | |
515 | now. */ | |
516 | extern void delete_exited_threads (void); | |
517 | ||
ce4c476a PA |
518 | /* Return true if PC is in the stepping range of THREAD. */ |
519 | ||
520 | int pc_in_thread_step_range (CORE_ADDR pc, struct thread_info *thread); | |
521 | ||
6c659fc2 SC |
522 | extern struct cleanup *enable_thread_stack_temporaries (ptid_t ptid); |
523 | ||
524 | extern int thread_stack_temporaries_enabled_p (ptid_t ptid); | |
525 | ||
526 | extern void push_thread_stack_temporary (ptid_t ptid, struct value *v); | |
527 | ||
528 | extern struct value *get_last_thread_stack_temporary (ptid_t); | |
529 | ||
530 | extern int value_in_thread_stack_temporaries (struct value *, ptid_t); | |
531 | ||
c2829269 PA |
532 | /* Add TP to the end of its inferior's pending step-over chain. */ |
533 | ||
534 | extern void thread_step_over_chain_enqueue (struct thread_info *tp); | |
535 | ||
536 | /* Remove TP from its inferior's pending step-over chain. */ | |
537 | ||
538 | extern void thread_step_over_chain_remove (struct thread_info *tp); | |
539 | ||
540 | /* Return the next thread in the step-over chain starting at TP. NULL | |
541 | if TP is the last entry in the chain. */ | |
542 | ||
543 | extern struct thread_info *thread_step_over_chain_next (struct thread_info *tp); | |
544 | ||
545 | /* Return true if TP is in the step-over chain. */ | |
546 | ||
547 | extern int thread_is_in_step_over_chain (struct thread_info *tp); | |
548 | ||
243a9253 PA |
549 | /* Cancel any ongoing execution command. */ |
550 | ||
551 | extern void thread_cancel_execution_command (struct thread_info *thr); | |
552 | ||
e5ef252a PA |
553 | extern struct thread_info *thread_list; |
554 | ||
c5aa993b | 555 | #endif /* GDBTHREAD_H */ |