1 /* Copyright (C) 1986-2014 Free Software Foundation, Inc.
3 This file is part of GDB.
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 struct target_waitstatus
;
27 /* True if we are debugging run control. */
28 extern unsigned int debug_infrun
;
30 /* True if we are debugging displaced stepping. */
31 extern int debug_displaced
;
33 /* Nonzero if we want to give control to the user when we're notified
34 of shared library events by the dynamic linker. */
35 extern int stop_on_solib_events
;
37 /* Are we simulating synchronous execution? This is used in async gdb
38 to implement the 'run', 'continue' etc commands, which will not
39 redisplay the prompt until the execution is actually over. */
40 extern int sync_execution
;
42 /* True if execution commands resume all threads of all processes by
43 default; otherwise, resume only threads of the current inferior
45 extern int sched_multi
;
47 /* When set, stop the 'step' command if we enter a function which has
48 no line number information. The normal behavior is that we step
49 over such function. */
50 extern int step_stop_if_no_debug
;
52 /* If set, the inferior should be controlled in non-stop mode. In
53 this mode, each thread is controlled independently. Execution
54 commands apply only to the selected thread by default, and stop
55 events stop only the thread that had the event -- the other threads
56 are kept running freely. */
59 /* When set (default), the target should attempt to disable the
60 operating system's address space randomization feature when
61 starting an inferior. */
62 extern int disable_randomization
;
64 /* Reverse execution. */
65 enum exec_direction_kind
71 /* The current execution direction. This should only be set to enum
72 exec_direction_kind values. It is only an int to make it
73 compatible with make_cleanup_restore_integer. */
74 extern int execution_direction
;
76 /* Save register contents here when executing a "finish" command or
77 are about to pop a stack dummy frame, if-and-only-if
78 proceed_to_finish is set. Thus this contains the return value from
79 the called function (assuming values are returned in a
81 extern struct regcache
*stop_registers
;
83 extern void start_remote (int from_tty
);
85 /* Clear out all variables saying what to do when inferior is
86 continued or stepped. First do this, then set the ones you want,
87 then call `proceed'. STEP indicates whether we're preparing for a
88 step/stepi command. */
89 extern void clear_proceed_status (int step
);
91 extern void proceed (CORE_ADDR
, enum gdb_signal
, int);
93 /* The `resume' routine should only be called in special circumstances.
94 Normally, use `proceed', which handles a lot of bookkeeping. */
95 extern void resume (int, enum gdb_signal
);
97 /* Return a ptid representing the set of threads that we will proceed,
98 in the perspective of the user/frontend. */
99 extern ptid_t
user_visible_resume_ptid (int step
);
101 extern void wait_for_inferior (void);
103 extern void normal_stop (void);
105 extern void get_last_target_status (ptid_t
*ptid
,
106 struct target_waitstatus
*status
);
108 extern void prepare_for_detach (void);
110 extern void fetch_inferior_event (void *);
112 extern void init_wait_for_inferior (void);
114 extern void insert_step_resume_breakpoint_at_sal (struct gdbarch
*,
115 struct symtab_and_line
,
118 /* Returns true if we're trying to step past the instruction at
119 ADDRESS in ASPACE. */
120 extern int stepping_past_instruction_at (struct address_space
*aspace
,
123 extern void set_step_info (struct frame_info
*frame
,
124 struct symtab_and_line sal
);
126 /* Several print_*_reason helper functions to print why the inferior
127 has stopped to the passed in UIOUT. */
129 /* Signal received, print why the inferior has stopped. */
130 extern void print_signal_received_reason (struct ui_out
*uiout
,
131 enum gdb_signal siggnal
);
133 /* Print why the inferior has stopped. We are done with a
134 step/next/si/ni command, print why the inferior has stopped. */
135 extern void print_end_stepping_range_reason (struct ui_out
*uiout
);
137 /* The inferior was terminated by a signal, print why it stopped. */
138 extern void print_signal_exited_reason (struct ui_out
*uiout
,
139 enum gdb_signal siggnal
);
141 /* The inferior program is finished, print why it stopped. */
142 extern void print_exited_reason (struct ui_out
*uiout
, int exitstatus
);
144 /* Reverse execution: target ran out of history info, print why the
145 inferior has stopped. */
146 extern void print_no_history_reason (struct ui_out
*uiout
);
148 extern void print_stop_event (struct target_waitstatus
*ws
);
150 extern int signal_stop_state (int);
152 extern int signal_print_state (int);
154 extern int signal_pass_state (int);
156 extern int signal_stop_update (int, int);
158 extern int signal_print_update (int, int);
160 extern int signal_pass_update (int, int);
162 extern void update_signals_program_target (void);
164 /* Clear the convenience variables associated with the exit of the
165 inferior. Currently, those variables are $_exitcode and
167 extern void clear_exit_convenience_vars (void);
169 /* Dump LEN bytes at BUF in hex to FILE, followed by a newline. */
170 extern void displaced_step_dump_bytes (struct ui_file
*file
,
171 const gdb_byte
*buf
, size_t len
);
173 extern struct displaced_step_closure
*get_displaced_step_closure_by_addr
176 extern void update_observer_mode (void);
178 extern void signal_catch_update (const unsigned int *);
180 /* In some circumstances we allow a command to specify a numeric
181 signal. The idea is to keep these circumstances limited so that
182 users (and scripts) develop portable habits. For comparison,
183 POSIX.2 `kill' requires that 1,2,3,6,9,14, and 15 work (and using a
184 numeric signal at all is obsolescent. We are slightly more lenient
185 and allow 1-15 which should match host signal numbers on most
186 systems. Use of symbolic signal names is strongly encouraged. */
187 enum gdb_signal
gdb_signal_from_command (int num
);
189 #endif /* INFRUN_H */