1 /* Copyright (C) 1986-2015 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 extern void start_remote (int from_tty);
78 /* Clear out all variables saying what to do when inferior is
79 continued or stepped. First do this, then set the ones you want,
80 then call `proceed'. STEP indicates whether we're preparing for a
81 step/stepi command. */
82 extern void clear_proceed_status (int step);
84 extern void proceed (CORE_ADDR, enum gdb_signal);
86 /* The `resume' routine should only be called in special circumstances.
87 Normally, use `proceed', which handles a lot of bookkeeping. */
88 extern void resume (enum gdb_signal);
90 /* Return a ptid representing the set of threads that we will proceed,
91 in the perspective of the user/frontend. We may actually resume
92 fewer threads at first, e.g., if a thread is stopped at a
93 breakpoint that needs stepping-off, but that should not be visible
94 to the user/frontend, and neither should the frontend/user be
95 allowed to proceed any of the threads that happen to be stopped for
96 internal run control handling, if a previous command wanted them
98 extern ptid_t user_visible_resume_ptid (int step);
100 extern void wait_for_inferior (void);
102 extern void normal_stop (void);
104 extern void get_last_target_status (ptid_t *ptid,
105 struct target_waitstatus *status);
107 extern void prepare_for_detach (void);
109 extern void fetch_inferior_event (void *);
111 extern void init_wait_for_inferior (void);
113 extern void insert_step_resume_breakpoint_at_sal (struct gdbarch *,
114 struct symtab_and_line ,
117 /* Returns true if we're trying to step past the instruction at
118 ADDRESS in ASPACE. */
119 extern int stepping_past_instruction_at (struct address_space *aspace,
122 /* Returns true if we're trying to step past an instruction that
123 triggers a non-steppable watchpoint. */
124 extern int stepping_past_nonsteppable_watchpoint (void);
126 extern void set_step_info (struct frame_info *frame,
127 struct symtab_and_line sal);
129 /* Several print_*_reason helper functions to print why the inferior
130 has stopped to the passed in UIOUT. */
132 /* Signal received, print why the inferior has stopped. */
133 extern void print_signal_received_reason (struct ui_out *uiout,
134 enum gdb_signal siggnal);
136 /* Print why the inferior has stopped. We are done with a
137 step/next/si/ni command, print why the inferior has stopped. */
138 extern void print_end_stepping_range_reason (struct ui_out *uiout);
140 /* The inferior was terminated by a signal, print why it stopped. */
141 extern void print_signal_exited_reason (struct ui_out *uiout,
142 enum gdb_signal siggnal);
144 /* The inferior program is finished, print why it stopped. */
145 extern void print_exited_reason (struct ui_out *uiout, int exitstatus);
147 /* Reverse execution: target ran out of history info, print why the
148 inferior has stopped. */
149 extern void print_no_history_reason (struct ui_out *uiout);
151 extern void print_stop_event (struct target_waitstatus *ws);
153 extern int signal_stop_state (int);
155 extern int signal_print_state (int);
157 extern int signal_pass_state (int);
159 extern int signal_stop_update (int, int);
161 extern int signal_print_update (int, int);
163 extern int signal_pass_update (int, int);
165 extern void update_signals_program_target (void);
167 /* Clear the convenience variables associated with the exit of the
168 inferior. Currently, those variables are $_exitcode and
170 extern void clear_exit_convenience_vars (void);
172 /* Dump LEN bytes at BUF in hex to FILE, followed by a newline. */
173 extern void displaced_step_dump_bytes (struct ui_file *file,
174 const gdb_byte *buf, size_t len);
176 extern struct displaced_step_closure *get_displaced_step_closure_by_addr
179 extern void update_observer_mode (void);
181 extern void signal_catch_update (const unsigned int *);
183 /* In some circumstances we allow a command to specify a numeric
184 signal. The idea is to keep these circumstances limited so that
185 users (and scripts) develop portable habits. For comparison,
186 POSIX.2 `kill' requires that 1,2,3,6,9,14, and 15 work (and using a
187 numeric signal at all is obsolescent. We are slightly more lenient
188 and allow 1-15 which should match host signal numbers on most
189 systems. Use of symbolic signal names is strongly encouraged. */
190 enum gdb_signal gdb_signal_from_command (int num);
192 /* Enables/disables infrun's async event source in the event loop. */
193 extern void infrun_async (int enable);
195 /* The global queue of threads that need to do a step-over operation
196 to get past e.g., a breakpoint. */
197 extern struct thread_info *step_over_queue_head;
199 #endif /* INFRUN_H */