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
;
53 int stepping_over_breakpoint
;
55 /* This is set TRUE when a catchpoint of a shared library event
56 triggers. Since we don't wish to leave the inferior in the
57 solib hook when we report the event, we step the inferior
58 back to user code before stopping and reporting the event. */
59 int stepping_through_solib_after_catch
;
61 /* When stepping_through_solib_after_catch is TRUE, this is a
62 list of the catchpoints that should be reported as triggering
63 when we finally do stop stepping. */
64 bpstat stepping_through_solib_catchpoints
;
66 /* This field is internal for thread.c. Never access it directly,
67 use is_running instead. */
70 /* Private data used by the target vector implementation. */
71 struct private_thread_info
*private;
74 /* Create an empty thread list, or empty the existing one. */
75 extern void init_thread_list (void);
77 /* Add a thread to the thread list, print a message
78 that a new thread is found, and return the pointer to
79 the new thread. Caller my use this pointer to
80 initialize the private thread data. */
81 extern struct thread_info
*add_thread (ptid_t ptid
);
83 /* Same as add_thread, but does not print a message
85 extern struct thread_info
*add_thread_silent (ptid_t ptid
);
87 /* Same as add_thread, and sets the private info. */
88 extern struct thread_info
*add_thread_with_info (ptid_t ptid
,
89 struct private_thread_info
*);
91 /* Delete an existing thread list entry. */
92 extern void delete_thread (ptid_t
);
94 /* Delete a step_resume_breakpoint from the thread database. */
95 extern void delete_step_resume_breakpoint (void *);
97 /* Translate the integer thread id (GDB's homegrown id, not the system's)
98 into a "pid" (which may be overloaded with extra thread information). */
99 extern ptid_t
thread_id_to_pid (int);
101 /* Translate a 'pid' (which may be overloaded with extra thread information)
102 into the integer thread id (GDB's homegrown id, not the system's). */
103 extern int pid_to_thread_id (ptid_t ptid
);
105 /* Boolean test for an already-known pid (which may be overloaded with
106 extra thread information). */
107 extern int in_thread_list (ptid_t ptid
);
109 /* Boolean test for an already-known thread id (GDB's homegrown id,
110 not the system's). */
111 extern int valid_thread_id (int thread
);
113 /* Search function to lookup a thread by 'pid'. */
114 extern struct thread_info
*find_thread_pid (ptid_t ptid
);
116 /* Iterator function to call a user-provided callback function
117 once for each known thread. */
118 typedef int (*thread_callback_func
) (struct thread_info
*, void *);
119 extern struct thread_info
*iterate_over_threads (thread_callback_func
, void *);
121 /* infrun context switch: save the debugger state for the given thread. */
122 extern void save_infrun_state (ptid_t ptid
,
125 struct breakpoint
*step_resume_breakpoint
,
126 CORE_ADDR step_range_start
,
127 CORE_ADDR step_range_end
,
128 const struct frame_id
*step_frame_id
,
130 int stepping_through_solib_after_catch
,
131 bpstat stepping_through_solib_catchpoints
,
133 struct symtab
*current_symtab
);
135 /* infrun context switch: load the debugger state previously saved
136 for the given thread. */
137 extern void load_infrun_state (ptid_t ptid
,
140 struct breakpoint
**step_resume_breakpoint
,
141 CORE_ADDR
*step_range_start
,
142 CORE_ADDR
*step_range_end
,
143 struct frame_id
*step_frame_id
,
145 int *stepping_through_solib_affter_catch
,
146 bpstat
*stepping_through_solib_catchpoints
,
148 struct symtab
**current_symtab
);
150 /* Switch from one thread to another. */
151 extern void switch_to_thread (ptid_t ptid
);
153 /* Marks thread PTID is running, or stopped.
154 If PIDGET (PTID) is -1, marks all threads. */
155 extern void set_running (ptid_t ptid
, int running
);
157 /* Reports if thread PTID is know to be running right now. */
158 extern int is_running (ptid_t ptid
);
160 /* Commands with a prefix of `thread'. */
161 extern struct cmd_list_element
*thread_cmd_list
;
163 /* Print notices on thread events (attach, detach, etc.), set with
164 `set print thread-events'. */
165 extern int print_thread_events
;
167 extern void print_thread_info (struct ui_out
*uiout
, int thread
);
169 extern struct cleanup
*make_cleanup_restore_current_thread (ptid_t
,
173 #endif /* GDBTHREAD_H */