1 /* Multi-process/thread control defs for GDB, the GNU debugger.
2 Copyright (C) 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1997, 1998, 1999,
4 Free Software Foundation, Inc.
5 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 2 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, write to the Free Software
22 Foundation, Inc., 51 Franklin Street, Fifth Floor,
23 Boston, MA 02110-1301, USA. */
33 #include "breakpoint.h"
35 /* For struct frame_id. */
40 struct thread_info *next;
41 ptid_t ptid; /* "Actual process id";
42 In fact, this may be overloaded with
43 kernel thread id, etc. */
44 int num; /* Convenient handle (GDB thread id) */
45 /* State from wait_for_inferior */
47 struct breakpoint *step_resume_breakpoint;
48 CORE_ADDR step_range_start;
49 CORE_ADDR step_range_end;
50 struct frame_id step_frame_id;
52 struct symtab *current_symtab;
57 /* This is set TRUE when a catchpoint of a shared library event
58 triggers. Since we don't wish to leave the inferior in the
59 solib hook when we report the event, we step the inferior
60 back to user code before stopping and reporting the event. */
61 int stepping_through_solib_after_catch;
63 /* When stepping_through_solib_after_catch is TRUE, this is a
64 list of the catchpoints that should be reported as triggering
65 when we finally do stop stepping. */
66 bpstat stepping_through_solib_catchpoints;
68 /* Private data used by the target vector implementation. */
69 struct private_thread_info *private;
72 /* Create an empty thread list, or empty the existing one. */
73 extern void init_thread_list (void);
75 /* Add a thread to the thread list.
76 Note that add_thread now returns the handle of the new thread,
77 so that the caller may initialize the private thread data. */
78 extern struct thread_info *add_thread (ptid_t ptid);
80 /* Delete an existing thread list entry. */
81 extern void delete_thread (ptid_t);
83 /* Delete a step_resume_breakpoint from the thread database. */
84 extern void delete_step_resume_breakpoint (void *);
86 /* Translate the integer thread id (GDB's homegrown id, not the system's)
87 into a "pid" (which may be overloaded with extra thread information). */
88 extern ptid_t thread_id_to_pid (int);
90 /* Translate a 'pid' (which may be overloaded with extra thread information)
91 into the integer thread id (GDB's homegrown id, not the system's). */
92 extern int pid_to_thread_id (ptid_t ptid);
94 /* Boolean test for an already-known pid (which may be overloaded with
95 extra thread information). */
96 extern int in_thread_list (ptid_t ptid);
98 /* Boolean test for an already-known thread id (GDB's homegrown id,
100 extern int valid_thread_id (int thread);
102 /* Search function to lookup a thread by 'pid'. */
103 extern struct thread_info *find_thread_pid (ptid_t ptid);
105 /* Iterator function to call a user-provided callback function
106 once for each known thread. */
107 typedef int (*thread_callback_func) (struct thread_info *, void *);
108 extern struct thread_info *iterate_over_threads (thread_callback_func, void *);
110 /* infrun context switch: save the debugger state for the given thread. */
111 extern void save_infrun_state (ptid_t ptid,
114 struct breakpoint *step_resume_breakpoint,
115 CORE_ADDR step_range_start,
116 CORE_ADDR step_range_end,
117 const struct frame_id *step_frame_id,
118 int handling_longjmp,
120 int stepping_through_solib_after_catch,
121 bpstat stepping_through_solib_catchpoints,
123 struct symtab *current_symtab);
125 /* infrun context switch: load the debugger state previously saved
126 for the given thread. */
127 extern void load_infrun_state (ptid_t ptid,
130 struct breakpoint **step_resume_breakpoint,
131 CORE_ADDR *step_range_start,
132 CORE_ADDR *step_range_end,
133 struct frame_id *step_frame_id,
134 int *handling_longjmp,
136 int *stepping_through_solib_affter_catch,
137 bpstat *stepping_through_solib_catchpoints,
139 struct symtab **current_symtab);
141 /* Commands with a prefix of `thread'. */
142 extern struct cmd_list_element *thread_cmd_list;
144 #endif /* GDBTHREAD_H */