1 /* Multi-process/thread control for GDB, the GNU debugger.
3 Copyright (C) 1986, 1987, 1988, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
4 2000, 2001, 2002, 2003, 2004, 2007, 2008 Free Software Foundation, Inc.
6 Contributed by Lynx Real-Time Systems, Inc. Los Gatos, CA.
8 This file is part of GDB.
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 3 of the License, or
13 (at your option) any later version.
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.
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>. */
30 #include "gdbthread.h"
31 #include "exceptions.h"
36 #include "gdb_string.h"
39 #include <sys/types.h>
44 #include "cli/cli-decode.h"
46 /* Definition of struct thread_info exported to gdbthread.h */
48 /* Prototypes for exported functions. */
50 void _initialize_thread (void);
52 /* Prototypes for local functions. */
54 static struct thread_info
*thread_list
= NULL
;
55 static int highest_thread_num
;
57 static void thread_command (char *tidstr
, int from_tty
);
58 static void thread_apply_all_command (char *, int);
59 static int thread_alive (struct thread_info
*);
60 static void info_threads_command (char *, int);
61 static void thread_apply_command (char *, int);
62 static void restore_current_thread (ptid_t
);
63 static void prune_threads (void);
65 /* Frontend view of the thread state. Possible extensions: stepping,
66 finishing, until(ling),... */
74 extern struct thread_info
*
75 inferior_thread (void)
77 struct thread_info
*tp
= find_thread_pid (inferior_ptid
);
83 delete_step_resume_breakpoint (struct thread_info
*tp
)
85 if (tp
&& tp
->step_resume_breakpoint
)
87 delete_breakpoint (tp
->step_resume_breakpoint
);
88 tp
->step_resume_breakpoint
= NULL
;
93 clear_thread_inferior_resources (struct thread_info
*tp
)
95 /* NOTE: this will take care of any left-over step_resume breakpoints,
96 but not any user-specified thread-specific breakpoints. We can not
97 delete the breakpoint straight-off, because the inferior might not
98 be stopped at the moment. */
99 if (tp
->step_resume_breakpoint
)
101 tp
->step_resume_breakpoint
->disposition
= disp_del_at_next_stop
;
102 tp
->step_resume_breakpoint
= NULL
;
105 bpstat_clear (&tp
->stop_bpstat
);
107 discard_all_intermediate_continuations_thread (tp
);
108 discard_all_continuations_thread (tp
);
112 free_thread (struct thread_info
*tp
)
114 clear_thread_inferior_resources (tp
);
116 /* FIXME: do I ever need to call the back-end to give it a
117 chance at this private data before deleting the thread? */
125 init_thread_list (void)
127 struct thread_info
*tp
, *tpnext
;
129 highest_thread_num
= 0;
134 for (tp
= thread_list
; tp
; tp
= tpnext
)
144 add_thread_silent (ptid_t ptid
)
146 struct thread_info
*tp
;
148 tp
= find_thread_pid (ptid
);
150 /* Found an old thread with the same id. It has to be dead,
151 otherwise we wouldn't be adding a new thread with the same id.
152 The OS is reusing this id --- delete it, and recreate a new
155 /* In addition to deleting the thread, if this is the current
156 thread, then we need to take care that delete_thread doesn't
157 really delete the thread if it is inferior_ptid. Create a
158 new template thread in the list with an invalid ptid, switch
159 to it, delete the original thread, reset the new thread's
160 ptid, and switch to it. */
162 if (ptid_equal (inferior_ptid
, ptid
))
164 tp
= xmalloc (sizeof (*tp
));
165 memset (tp
, 0, sizeof (*tp
));
166 tp
->ptid
= minus_one_ptid
;
167 tp
->num
= ++highest_thread_num
;
168 tp
->next
= thread_list
;
171 /* Make switch_to_thread not read from the thread. */
172 tp
->state_
= THREAD_EXITED
;
173 switch_to_thread (minus_one_ptid
);
175 /* Now we can delete it. */
176 delete_thread (ptid
);
178 /* Now reset its ptid, and reswitch inferior_ptid to it. */
180 tp
->state_
= THREAD_STOPPED
;
181 switch_to_thread (ptid
);
183 observer_notify_new_thread (tp
);
189 /* Just go ahead and delete it. */
190 delete_thread (ptid
);
193 tp
= (struct thread_info
*) xmalloc (sizeof (*tp
));
194 memset (tp
, 0, sizeof (*tp
));
196 tp
->num
= ++highest_thread_num
;
197 tp
->next
= thread_list
;
200 observer_notify_new_thread (tp
);
206 add_thread_with_info (ptid_t ptid
, struct private_thread_info
*private)
208 struct thread_info
*result
= add_thread_silent (ptid
);
210 result
->private = private;
212 if (print_thread_events
)
213 printf_unfiltered (_("[New %s]\n"), target_pid_to_str (ptid
));
215 annotate_new_thread ();
220 add_thread (ptid_t ptid
)
222 return add_thread_with_info (ptid
, NULL
);
225 /* Delete thread PTID. If SILENT, don't notify the observer of this
228 delete_thread_1 (ptid_t ptid
, int silent
)
230 struct thread_info
*tp
, *tpprev
;
234 for (tp
= thread_list
; tp
; tpprev
= tp
, tp
= tp
->next
)
235 if (ptid_equal (tp
->ptid
, ptid
))
241 /* If this is the current thread, or there's code out there that
242 relies on it existing (refcount > 0) we can't delete yet. Mark
243 it as exited, and notify it. */
245 || ptid_equal (tp
->ptid
, inferior_ptid
))
247 if (tp
->state_
!= THREAD_EXITED
)
250 observer_notify_thread_exit (tp
);
252 /* Tag it as exited. */
253 tp
->state_
= THREAD_EXITED
;
255 /* Clear breakpoints, etc. associated with this thread. */
256 clear_thread_inferior_resources (tp
);
259 /* Will be really deleted some other time. */
264 tpprev
->next
= tp
->next
;
266 thread_list
= tp
->next
;
268 /* Notify thread exit, but only if we haven't already. */
269 if (!silent
&& tp
->state_
!= THREAD_EXITED
)
270 observer_notify_thread_exit (tp
);
275 /* Delete thread PTID and notify of thread exit. If this is
276 inferior_ptid, don't actually delete it, but tag it as exited and
277 do the notification. If PTID is the user selected thread, clear
280 delete_thread (ptid_t ptid
)
282 delete_thread_1 (ptid
, 0 /* not silent */);
286 delete_thread_silent (ptid_t ptid
)
288 delete_thread_1 (ptid
, 1 /* silent */);
292 find_thread_id (int num
)
294 struct thread_info
*tp
;
296 for (tp
= thread_list
; tp
; tp
= tp
->next
)
303 /* Find a thread_info by matching PTID. */
305 find_thread_pid (ptid_t ptid
)
307 struct thread_info
*tp
;
309 for (tp
= thread_list
; tp
; tp
= tp
->next
)
310 if (ptid_equal (tp
->ptid
, ptid
))
317 * Thread iterator function.
319 * Calls a callback function once for each thread, so long as
320 * the callback function returns false. If the callback function
321 * returns true, the iteration will end and the current thread
322 * will be returned. This can be useful for implementing a
323 * search for a thread with arbitrary attributes, or for applying
324 * some operation to every thread.
326 * FIXME: some of the existing functionality, such as
327 * "Thread apply all", might be rewritten using this functionality.
331 iterate_over_threads (int (*callback
) (struct thread_info
*, void *),
334 struct thread_info
*tp
, *next
;
336 for (tp
= thread_list
; tp
; tp
= next
)
339 if ((*callback
) (tp
, data
))
350 struct thread_info
*tp
;
352 for (tp
= thread_list
; tp
; tp
= tp
->next
)
359 valid_thread_id (int num
)
361 struct thread_info
*tp
;
363 for (tp
= thread_list
; tp
; tp
= tp
->next
)
371 pid_to_thread_id (ptid_t ptid
)
373 struct thread_info
*tp
;
375 for (tp
= thread_list
; tp
; tp
= tp
->next
)
376 if (ptid_equal (tp
->ptid
, ptid
))
383 thread_id_to_pid (int num
)
385 struct thread_info
*thread
= find_thread_id (num
);
389 return pid_to_ptid (-1);
393 in_thread_list (ptid_t ptid
)
395 struct thread_info
*tp
;
397 for (tp
= thread_list
; tp
; tp
= tp
->next
)
398 if (ptid_equal (tp
->ptid
, ptid
))
401 return 0; /* Never heard of 'im */
404 /* Print a list of thread ids currently known, and the total number of
405 threads. To be used from within catch_errors. */
407 do_captured_list_thread_ids (struct ui_out
*uiout
, void *arg
)
409 struct thread_info
*tp
;
411 struct cleanup
*cleanup_chain
;
414 target_find_new_threads ();
416 cleanup_chain
= make_cleanup_ui_out_tuple_begin_end (uiout
, "thread-ids");
418 for (tp
= thread_list
; tp
; tp
= tp
->next
)
420 if (tp
->state_
== THREAD_EXITED
)
423 ui_out_field_int (uiout
, "thread-id", tp
->num
);
426 do_cleanups (cleanup_chain
);
427 ui_out_field_int (uiout
, "number-of-threads", num
);
431 /* Official gdblib interface function to get a list of thread ids and
434 gdb_list_thread_ids (struct ui_out
*uiout
, char **error_message
)
436 if (catch_exceptions_with_msg (uiout
, do_captured_list_thread_ids
, NULL
,
437 error_message
, RETURN_MASK_ALL
) < 0)
442 /* Return true if TP is an active thread. */
444 thread_alive (struct thread_info
*tp
)
446 if (tp
->state_
== THREAD_EXITED
)
448 if (!target_thread_alive (tp
->ptid
))
456 struct thread_info
*tp
, *next
;
458 for (tp
= thread_list
; tp
; tp
= next
)
461 if (!thread_alive (tp
))
462 delete_thread (tp
->ptid
);
467 thread_change_ptid (ptid_t old_ptid
, ptid_t new_ptid
)
469 struct thread_info
* tp
= find_thread_pid (old_ptid
);
472 observer_notify_thread_ptid_changed (old_ptid
, new_ptid
);
476 set_running (ptid_t ptid
, int running
)
478 struct thread_info
*tp
;
480 /* We try not to notify the observer if no thread has actually changed
481 the running state -- merely to reduce the number of messages to
482 frontend. Frontend is supposed to handle multiple *running just fine. */
483 if (PIDGET (ptid
) == -1)
486 for (tp
= thread_list
; tp
; tp
= tp
->next
)
488 if (tp
->state_
== THREAD_EXITED
)
490 if (running
&& tp
->state_
== THREAD_STOPPED
)
492 tp
->state_
= running
? THREAD_RUNNING
: THREAD_STOPPED
;
494 if (any_started
&& !suppress_resume_observer
)
495 observer_notify_target_resumed (ptid
);
500 tp
= find_thread_pid (ptid
);
502 gdb_assert (tp
->state_
!= THREAD_EXITED
);
503 if (running
&& tp
->state_
== THREAD_STOPPED
)
505 tp
->state_
= running
? THREAD_RUNNING
: THREAD_STOPPED
;
506 if (started
&& !suppress_resume_observer
)
507 observer_notify_target_resumed (ptid
);
512 is_thread_state (ptid_t ptid
, enum thread_state state
)
514 struct thread_info
*tp
;
516 if (!target_has_execution
)
519 tp
= find_thread_pid (ptid
);
521 return tp
->state_
== state
;
525 is_stopped (ptid_t ptid
)
527 /* Without execution, this property is always true. */
528 if (!target_has_execution
)
531 return is_thread_state (ptid
, THREAD_STOPPED
);
535 is_exited (ptid_t ptid
)
537 /* Without execution, this property is always false. */
538 if (!target_has_execution
)
541 return is_thread_state (ptid
, THREAD_EXITED
);
545 is_running (ptid_t ptid
)
547 /* Without execution, this property is always false. */
548 if (!target_has_execution
)
551 return is_thread_state (ptid
, THREAD_RUNNING
);
557 struct thread_info
*tp
;
559 if (!target_has_execution
)
562 for (tp
= thread_list
; tp
; tp
= tp
->next
)
563 if (tp
->state_
== THREAD_RUNNING
)
570 is_executing (ptid_t ptid
)
572 struct thread_info
*tp
;
574 if (!target_has_execution
)
577 tp
= find_thread_pid (ptid
);
579 return tp
->executing_
;
583 set_executing (ptid_t ptid
, int executing
)
585 struct thread_info
*tp
;
587 if (PIDGET (ptid
) == -1)
589 for (tp
= thread_list
; tp
; tp
= tp
->next
)
590 tp
->executing_
= executing
;
594 tp
= find_thread_pid (ptid
);
596 tp
->executing_
= executing
;
600 /* Prints the list of threads and their details on UIOUT.
601 This is a version of 'info_thread_command' suitable for
603 If REQUESTED_THREAD is not -1, it's the GDB id of the thread
604 that should be printed. Otherwise, all threads are
607 print_thread_info (struct ui_out
*uiout
, int requested_thread
)
609 struct thread_info
*tp
;
611 struct cleanup
*old_chain
;
613 int current_thread
= -1;
616 target_find_new_threads ();
617 current_ptid
= inferior_ptid
;
619 /* We'll be switching threads temporarily. */
620 old_chain
= make_cleanup_restore_current_thread ();
622 make_cleanup_ui_out_list_begin_end (uiout
, "threads");
623 for (tp
= thread_list
; tp
; tp
= tp
->next
)
625 struct cleanup
*chain2
;
627 if (requested_thread
!= -1 && tp
->num
!= requested_thread
)
630 if (ptid_equal (tp
->ptid
, current_ptid
))
631 current_thread
= tp
->num
;
633 if (tp
->state_
== THREAD_EXITED
)
636 chain2
= make_cleanup_ui_out_tuple_begin_end (uiout
, NULL
);
638 if (ptid_equal (tp
->ptid
, current_ptid
))
639 ui_out_text (uiout
, "* ");
641 ui_out_text (uiout
, " ");
643 ui_out_field_int (uiout
, "id", tp
->num
);
644 ui_out_text (uiout
, " ");
645 ui_out_field_string (uiout
, "target-id", target_tid_to_str (tp
->ptid
));
647 if (tp
->state_
!= THREAD_EXITED
)
649 extra_info
= target_extra_thread_info (tp
);
652 ui_out_text (uiout
, " (");
653 ui_out_field_string (uiout
, "details", extra_info
);
654 ui_out_text (uiout
, ")");
656 ui_out_text (uiout
, " ");
659 if (tp
->state_
== THREAD_RUNNING
)
660 ui_out_text (uiout
, "(running)\n");
663 /* The switch below puts us at the top of the stack (leaf
665 switch_to_thread (tp
->ptid
);
666 print_stack_frame (get_selected_frame (NULL
),
667 /* For MI output, print frame level. */
668 ui_out_is_mi_like_p (uiout
),
672 if (ui_out_is_mi_like_p (uiout
))
674 char *state
= "stopped";
675 if (tp
->state_
== THREAD_EXITED
)
677 else if (tp
->state_
== THREAD_RUNNING
)
679 ui_out_field_string (uiout
, "state", state
);
682 do_cleanups (chain2
);
685 /* Restores the current thread and the frame selected before
686 the "info threads" command. */
687 do_cleanups (old_chain
);
689 if (requested_thread
== -1)
691 gdb_assert (current_thread
!= -1
693 if (current_thread
!= -1 && ui_out_is_mi_like_p (uiout
))
694 ui_out_field_int (uiout
, "current-thread-id", current_thread
);
696 if (current_thread
!= -1 && is_exited (current_ptid
))
697 ui_out_message (uiout
, 0, "\n\
698 The current thread <Thread ID %d> has terminated. See `help thread'.\n",
704 /* Print information about currently known threads
706 * Note: this has the drawback that it _really_ switches
707 * threads, which frees the frame cache. A no-side
708 * effects info-threads command would be nicer.
712 info_threads_command (char *arg
, int from_tty
)
714 print_thread_info (uiout
, -1);
717 /* Switch from one thread to another. */
720 switch_to_thread (ptid_t ptid
)
722 if (ptid_equal (ptid
, inferior_ptid
))
725 inferior_ptid
= ptid
;
726 reinit_frame_cache ();
727 registers_changed ();
729 /* We don't check for is_stopped, because we're called at times
730 while in the TARGET_RUNNING state, e.g., while handling an
732 if (!is_exited (ptid
) && !is_executing (ptid
))
733 stop_pc
= read_pc ();
735 stop_pc
= ~(CORE_ADDR
) 0;
739 restore_current_thread (ptid_t ptid
)
741 switch_to_thread (ptid
);
745 restore_selected_frame (struct frame_id a_frame_id
, int frame_level
)
747 struct frame_info
*frame
= NULL
;
750 gdb_assert (frame_level
>= 0);
752 /* Restore by level first, check if the frame id is the same as
753 expected. If that fails, try restoring by frame id. If that
754 fails, nothing to do, just warn the user. */
757 frame
= find_relative_frame (get_current_frame (), &count
);
760 /* Either the frame ids match, of they're both invalid. The
761 latter case is not failsafe, but since it's highly unlikely
762 the search by level finds the wrong frame, it's 99.9(9)% of
763 the time (for all practical purposes) safe. */
764 && (frame_id_eq (get_frame_id (frame
), a_frame_id
)
765 /* Note: could be better to check every frame_id
766 member for equality here. */
767 || (!frame_id_p (get_frame_id (frame
))
768 && !frame_id_p (a_frame_id
))))
770 /* Cool, all is fine. */
771 select_frame (frame
);
775 frame
= frame_find_by_id (a_frame_id
);
778 /* Cool, refound it. */
779 select_frame (frame
);
783 /* Nothing else to do, the frame layout really changed. Select the
784 innermost stack frame. */
785 select_frame (get_current_frame ());
788 if (!ui_out_is_mi_like_p (uiout
))
791 Couldn't restore frame #%d in current thread, at reparsed frame #0\n"),
793 /* For MI, we should probably have a notification about
794 current frame change. But this error is not very
795 likely, so don't bother for now. */
796 print_stack_frame (get_selected_frame (NULL
), 1, SRC_LINE
);
800 struct current_thread_cleanup
802 ptid_t inferior_ptid
;
803 struct frame_id selected_frame_id
;
804 int selected_frame_level
;
809 do_restore_current_thread_cleanup (void *arg
)
811 struct thread_info
*tp
;
812 struct current_thread_cleanup
*old
= arg
;
813 restore_current_thread (old
->inferior_ptid
);
815 /* The running state of the originally selected thread may have
816 changed, so we have to recheck it here. */
818 && is_stopped (inferior_ptid
)
819 && target_has_registers
821 && target_has_memory
)
822 restore_selected_frame (old
->selected_frame_id
,
823 old
->selected_frame_level
);
827 restore_current_thread_cleanup_dtor (void *arg
)
829 struct current_thread_cleanup
*old
= arg
;
830 struct thread_info
*tp
;
831 tp
= find_thread_pid (old
->inferior_ptid
);
838 make_cleanup_restore_current_thread (void)
840 struct thread_info
*tp
;
841 struct frame_info
*frame
;
842 struct current_thread_cleanup
*old
;
844 old
= xmalloc (sizeof (struct current_thread_cleanup
));
845 old
->inferior_ptid
= inferior_ptid
;
846 old
->was_stopped
= is_stopped (inferior_ptid
);
848 && target_has_registers
850 && target_has_memory
)
851 frame
= get_selected_frame (NULL
);
855 old
->selected_frame_id
= get_frame_id (frame
);
856 old
->selected_frame_level
= frame_relative_level (frame
);
858 tp
= find_thread_pid (inferior_ptid
);
862 return make_cleanup_dtor (do_restore_current_thread_cleanup
, old
,
863 restore_current_thread_cleanup_dtor
);
866 /* Apply a GDB command to a list of threads. List syntax is a whitespace
867 seperated list of numbers, or ranges, or the keyword `all'. Ranges consist
868 of two numbers seperated by a hyphen. Examples:
870 thread apply 1 2 7 4 backtrace Apply backtrace cmd to threads 1,2,7,4
871 thread apply 2-7 9 p foo(1) Apply p foo(1) cmd to threads 2->7 & 9
872 thread apply all p x/i $pc Apply x/i $pc cmd to all threads
876 thread_apply_all_command (char *cmd
, int from_tty
)
878 struct thread_info
*tp
;
879 struct cleanup
*old_chain
;
882 if (cmd
== NULL
|| *cmd
== '\000')
883 error (_("Please specify a command following the thread ID list"));
886 target_find_new_threads ();
888 old_chain
= make_cleanup_restore_current_thread ();
890 /* Save a copy of the command in case it is clobbered by
892 saved_cmd
= xstrdup (cmd
);
893 make_cleanup (xfree
, saved_cmd
);
894 for (tp
= thread_list
; tp
; tp
= tp
->next
)
895 if (thread_alive (tp
))
897 switch_to_thread (tp
->ptid
);
899 printf_filtered (_("\nThread %d (%s):\n"),
900 tp
->num
, target_tid_to_str (inferior_ptid
));
901 execute_command (cmd
, from_tty
);
902 strcpy (cmd
, saved_cmd
); /* Restore exact command used previously */
905 do_cleanups (old_chain
);
909 thread_apply_command (char *tidlist
, int from_tty
)
913 struct cleanup
*old_chain
;
916 if (tidlist
== NULL
|| *tidlist
== '\000')
917 error (_("Please specify a thread ID list"));
919 for (cmd
= tidlist
; *cmd
!= '\000' && !isalpha (*cmd
); cmd
++);
922 error (_("Please specify a command following the thread ID list"));
924 /* Save a copy of the command in case it is clobbered by
926 saved_cmd
= xstrdup (cmd
);
927 old_chain
= make_cleanup (xfree
, saved_cmd
);
928 while (tidlist
< cmd
)
930 struct thread_info
*tp
;
933 start
= strtol (tidlist
, &p
, 10);
935 error (_("Error parsing %s"), tidlist
);
938 while (*tidlist
== ' ' || *tidlist
== '\t')
941 if (*tidlist
== '-') /* Got a range of IDs? */
943 tidlist
++; /* Skip the - */
944 end
= strtol (tidlist
, &p
, 10);
946 error (_("Error parsing %s"), tidlist
);
949 while (*tidlist
== ' ' || *tidlist
== '\t')
955 make_cleanup_restore_current_thread ();
957 for (; start
<= end
; start
++)
959 tp
= find_thread_id (start
);
962 warning (_("Unknown thread %d."), start
);
963 else if (!thread_alive (tp
))
964 warning (_("Thread %d has terminated."), start
);
967 switch_to_thread (tp
->ptid
);
969 printf_filtered (_("\nThread %d (%s):\n"), tp
->num
,
970 target_tid_to_str (inferior_ptid
));
971 execute_command (cmd
, from_tty
);
973 /* Restore exact command used previously. */
974 strcpy (cmd
, saved_cmd
);
979 do_cleanups (old_chain
);
982 /* Switch to the specified thread. Will dispatch off to thread_apply_command
983 if prefix of arg is `apply'. */
986 thread_command (char *tidstr
, int from_tty
)
990 if (target_has_stack
)
992 if (is_exited (inferior_ptid
))
993 printf_filtered (_("[Current thread is %d (%s) (exited)]\n"),
994 pid_to_thread_id (inferior_ptid
),
995 target_tid_to_str (inferior_ptid
));
997 printf_filtered (_("[Current thread is %d (%s)]\n"),
998 pid_to_thread_id (inferior_ptid
),
999 target_tid_to_str (inferior_ptid
));
1002 error (_("No stack."));
1006 annotate_thread_changed ();
1007 gdb_thread_select (uiout
, tidstr
, NULL
);
1010 /* Print notices when new threads are attached and detached. */
1011 int print_thread_events
= 1;
1013 show_print_thread_events (struct ui_file
*file
, int from_tty
,
1014 struct cmd_list_element
*c
, const char *value
)
1016 fprintf_filtered (file
, _("\
1017 Printing of thread events is %s.\n"),
1022 do_captured_thread_select (struct ui_out
*uiout
, void *tidstr
)
1025 struct thread_info
*tp
;
1027 num
= value_as_long (parse_and_eval (tidstr
));
1029 tp
= find_thread_id (num
);
1032 error (_("Thread ID %d not known."), num
);
1034 if (!thread_alive (tp
))
1035 error (_("Thread ID %d has terminated."), num
);
1037 switch_to_thread (tp
->ptid
);
1039 ui_out_text (uiout
, "[Switching to thread ");
1040 ui_out_field_int (uiout
, "new-thread-id", pid_to_thread_id (inferior_ptid
));
1041 ui_out_text (uiout
, " (");
1042 ui_out_text (uiout
, target_tid_to_str (inferior_ptid
));
1043 ui_out_text (uiout
, ")]");
1045 /* Note that we can't reach this with an exited thread, due to the
1046 thread_alive check above. */
1047 if (tp
->state_
== THREAD_RUNNING
)
1048 ui_out_text (uiout
, "(running)\n");
1050 print_stack_frame (get_selected_frame (NULL
), 1, SRC_AND_LOC
);
1052 /* Since the current thread may have changed, see if there is any
1053 exited thread we can now delete. */
1060 gdb_thread_select (struct ui_out
*uiout
, char *tidstr
, char **error_message
)
1062 if (catch_exceptions_with_msg (uiout
, do_captured_thread_select
, tidstr
,
1063 error_message
, RETURN_MASK_ALL
) < 0)
1068 /* Commands with a prefix of `thread'. */
1069 struct cmd_list_element
*thread_cmd_list
= NULL
;
1072 _initialize_thread (void)
1074 static struct cmd_list_element
*thread_apply_list
= NULL
;
1075 struct cmd_list_element
*c
;
1077 c
= add_info ("threads", info_threads_command
,
1078 _("IDs of currently known threads."));
1079 set_cmd_no_selected_thread_ok (c
);
1081 c
= add_prefix_cmd ("thread", class_run
, thread_command
, _("\
1082 Use this command to switch between threads.\n\
1083 The new thread ID must be currently known."),
1084 &thread_cmd_list
, "thread ", 1, &cmdlist
);
1085 set_cmd_no_selected_thread_ok (c
);
1087 c
= add_prefix_cmd ("apply", class_run
, thread_apply_command
,
1088 _("Apply a command to a list of threads."),
1089 &thread_apply_list
, "thread apply ", 1, &thread_cmd_list
);
1090 set_cmd_no_selected_thread_ok (c
);
1092 c
= add_cmd ("all", class_run
, thread_apply_all_command
,
1093 _("Apply a command to all threads."), &thread_apply_list
);
1094 set_cmd_no_selected_thread_ok (c
);
1097 add_com_alias ("t", "thread", class_run
, 1);
1099 add_setshow_boolean_cmd ("thread-events", no_class
,
1100 &print_thread_events
, _("\
1101 Set printing of thread events (such as thread start and exit)."), _("\
1102 Show printing of thread events (such as thread start and exit)."), NULL
,
1104 show_print_thread_events
,
1105 &setprintlist
, &showprintlist
);