1 /* Multi-process/thread control defs for GDB, the GNU debugger.
2 Copyright (C) 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1997, 1998, 1999,
3 2000, 2007, 2008 Free Software Foundation, Inc.
4 Contributed by Lynx Real-Time Systems, Inc. Los Gatos, CA.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
30 #include "breakpoint.h"
32 /* For struct frame_id. */
39 struct thread_info
*next
;
40 ptid_t ptid
; /* "Actual process id";
41 In fact, this may be overloaded with
42 kernel thread id, etc. */
43 int num
; /* Convenient handle (GDB thread id) */
44 /* State from wait_for_inferior */
46 struct breakpoint
*step_resume_breakpoint
;
47 CORE_ADDR step_range_start
;
48 CORE_ADDR step_range_end
;
49 struct frame_id step_frame_id
;
51 struct symtab
*current_symtab
;
54 int stepping_over_breakpoint
;
56 /* This is set TRUE when a catchpoint of a shared library event
57 triggers. Since we don't wish to leave the inferior in the
58 solib hook when we report the event, we step the inferior
59 back to user code before stopping and reporting the event. */
60 int stepping_through_solib_after_catch
;
62 /* When stepping_through_solib_after_catch is TRUE, this is a
63 list of the catchpoints that should be reported as triggering
64 when we finally do stop stepping. */
65 bpstat stepping_through_solib_catchpoints
;
67 /* Private data used by the target vector implementation. */
68 struct private_thread_info
*private;
71 /* Create an empty thread list, or empty the existing one. */
72 extern void init_thread_list (void);
74 /* Add a thread to the thread list, print a message
75 that a new thread is found, and return the pointer to
76 the new thread. Caller my use this pointer to
77 initialize the private thread data. */
78 extern struct thread_info
*add_thread (ptid_t ptid
);
80 /* Same as add_thread, but does not print a message
82 extern struct thread_info
*add_thread_silent (ptid_t ptid
);
84 /* Same as add_thread, and sets the private info. */
85 extern struct thread_info
*add_thread_with_info (ptid_t ptid
,
86 struct private_thread_info
*);
88 /* Delete an existing thread list entry. */
89 extern void delete_thread (ptid_t
);
91 /* Delete a step_resume_breakpoint from the thread database. */
92 extern void delete_step_resume_breakpoint (void *);
94 /* Translate the integer thread id (GDB's homegrown id, not the system's)
95 into a "pid" (which may be overloaded with extra thread information). */
96 extern ptid_t
thread_id_to_pid (int);
98 /* Translate a 'pid' (which may be overloaded with extra thread information)
99 into the integer thread id (GDB's homegrown id, not the system's). */
100 extern int pid_to_thread_id (ptid_t ptid
);
102 /* Boolean test for an already-known pid (which may be overloaded with
103 extra thread information). */
104 extern int in_thread_list (ptid_t ptid
);
106 /* Boolean test for an already-known thread id (GDB's homegrown id,
107 not the system's). */
108 extern int valid_thread_id (int thread
);
110 /* Search function to lookup a thread by 'pid'. */
111 extern struct thread_info
*find_thread_pid (ptid_t ptid
);
113 /* Iterator function to call a user-provided callback function
114 once for each known thread. */
115 typedef int (*thread_callback_func
) (struct thread_info
*, void *);
116 extern struct thread_info
*iterate_over_threads (thread_callback_func
, void *);
118 /* infrun context switch: save the debugger state for the given thread. */
119 extern void save_infrun_state (ptid_t ptid
,
122 struct breakpoint
*step_resume_breakpoint
,
123 CORE_ADDR step_range_start
,
124 CORE_ADDR step_range_end
,
125 const struct frame_id
*step_frame_id
,
126 int handling_longjmp
,
128 int stepping_through_solib_after_catch
,
129 bpstat stepping_through_solib_catchpoints
,
131 struct symtab
*current_symtab
);
133 /* infrun context switch: load the debugger state previously saved
134 for the given thread. */
135 extern void load_infrun_state (ptid_t ptid
,
138 struct breakpoint
**step_resume_breakpoint
,
139 CORE_ADDR
*step_range_start
,
140 CORE_ADDR
*step_range_end
,
141 struct frame_id
*step_frame_id
,
142 int *handling_longjmp
,
144 int *stepping_through_solib_affter_catch
,
145 bpstat
*stepping_through_solib_catchpoints
,
147 struct symtab
**current_symtab
);
149 /* Switch from one thread to another. */
150 extern void switch_to_thread (ptid_t ptid
);
152 /* Commands with a prefix of `thread'. */
153 extern struct cmd_list_element
*thread_cmd_list
;
155 /* Print notices on thread events (attach, detach, etc.), set with
156 `set print thread-events'. */
157 extern int print_thread_events
;
159 extern void print_thread_info (struct ui_out
*uiout
, int thread
);
161 extern struct cleanup
*make_cleanup_restore_current_thread (ptid_t
,
165 #endif /* GDBTHREAD_H */