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/tmp/gdb-7.10/gdb/infrun.h
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1 /* Copyright (C) 1986-2015 Free Software Foundation, Inc.
2 
3  This file is part of GDB.
4 
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.
9 
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.
14 
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/>. */
17 
18 #ifndef INFRUN_H
19 #define INFRUN_H 1
20 
21 #include "symtab.h"
22 
23 struct target_waitstatus;
24 struct frame_info;
25 struct address_space;
26 
27 /* True if we are debugging run control. */
28 extern unsigned int debug_infrun;
29 
30 /* True if we are debugging displaced stepping. */
31 extern int debug_displaced;
32 
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;
36 
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;
41 
42 /* True if execution commands resume all threads of all processes by
43  default; otherwise, resume only threads of the current inferior
44  process. */
45 extern int sched_multi;
46 
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;
51 
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. */
57 extern int non_stop;
58 
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;
63 
64 /* Reverse execution. */
66  {
69  };
70 
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;
75 
76 extern void start_remote (int from_tty);
77 
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);
83 
84 extern void proceed (CORE_ADDR, enum gdb_signal);
85 
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);
89 
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
97  resumed. */
98 extern ptid_t user_visible_resume_ptid (int step);
99 
100 extern void wait_for_inferior (void);
101 
102 extern void normal_stop (void);
103 
104 extern void get_last_target_status (ptid_t *ptid,
105  struct target_waitstatus *status);
106 
107 extern void prepare_for_detach (void);
108 
109 extern void fetch_inferior_event (void *);
110 
111 extern void init_wait_for_inferior (void);
112 
113 extern void insert_step_resume_breakpoint_at_sal (struct gdbarch *,
114  struct symtab_and_line ,
115  struct frame_id);
116 
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,
120  CORE_ADDR address);
121 
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);
125 
126 extern void set_step_info (struct frame_info *frame,
127  struct symtab_and_line sal);
128 
129 /* Several print_*_reason helper functions to print why the inferior
130  has stopped to the passed in UIOUT. */
131 
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);
135 
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);
139 
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);
143 
144 /* The inferior program is finished, print why it stopped. */
145 extern void print_exited_reason (struct ui_out *uiout, int exitstatus);
146 
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);
150 
151 extern void print_stop_event (struct target_waitstatus *ws);
152 
153 extern int signal_stop_state (int);
154 
155 extern int signal_print_state (int);
156 
157 extern int signal_pass_state (int);
158 
159 extern int signal_stop_update (int, int);
160 
161 extern int signal_print_update (int, int);
162 
163 extern int signal_pass_update (int, int);
164 
165 extern void update_signals_program_target (void);
166 
167 /* Clear the convenience variables associated with the exit of the
168  inferior. Currently, those variables are $_exitcode and
169  $_exitsignal. */
170 extern void clear_exit_convenience_vars (void);
171 
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);
175 
177  (CORE_ADDR addr);
178 
179 extern void update_observer_mode (void);
180 
181 extern void signal_catch_update (const unsigned int *);
182 
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);
191 
192 #endif /* INFRUN_H */
int sched_multi
Definition: infrun.c:1996
int signal_print_state(int)
Definition: infrun.c:6786
int debug_displaced
Definition: infrun.c:132
int stepping_past_nonsteppable_watchpoint(void)
Definition: infrun.c:1304
void print_signal_received_reason(struct ui_out *uiout, enum gdb_signal siggnal)
Definition: infrun.c:6441
int signal_pass_update(int, int)
Definition: infrun.c:6835
void clear_exit_convenience_vars(void)
Definition: infrun.c:7550
unsigned int debug_infrun
Definition: infrun.c:140
bfd_vma CORE_ADDR
Definition: common-types.h:41
void start_remote(int from_tty)
Definition: infrun.c:2768
int execution_direction
Definition: infrun.c:7561
void prepare_for_detach(void)
Definition: infrun.c:3087
void resume(enum gdb_signal)
Definition: infrun.c:2104
void print_exited_reason(struct ui_out *uiout, int exitstatus)
Definition: infrun.c:6408
void print_no_history_reason(struct ui_out *uiout)
Definition: infrun.c:6475
int signal_stop_update(int, int)
Definition: infrun.c:6815
enum gdb_signal gdb_signal_from_command(int num)
Definition: infrun.c:7096
int stepping_past_instruction_at(struct address_space *aspace, CORE_ADDR address)
Definition: infrun.c:1292
void proceed(CORE_ADDR, enum gdb_signal)
Definition: infrun.c:2592
void insert_step_resume_breakpoint_at_sal(struct gdbarch *, struct symtab_and_line, struct frame_id)
Definition: infrun.c:5978
void init_wait_for_inferior(void)
Definition: infrun.c:2802
void signal_catch_update(const unsigned int *)
Definition: infrun.c:6848
Definition: ui-out.c:99
Definition: ptid.h:35
struct displaced_step_closure * get_displaced_step_closure_by_addr(CORE_ADDR addr)
Definition: infrun.c:1508
void update_observer_mode(void)
Definition: infrun.c:262
void update_signals_program_target(void)
Definition: infrun.c:317
void get_last_target_status(ptid_t *ptid, struct target_waitstatus *status)
Definition: infrun.c:3408
mach_port_t mach_port_t name mach_port_t mach_port_t name error_t int status
Definition: gnu-nat.c:1816
void clear_proceed_status(int step)
Definition: infrun.c:2463
exec_direction_kind
Definition: infrun.h:65
int signal_print_update(int, int)
Definition: infrun.c:6825
void print_signal_exited_reason(struct ui_out *uiout, enum gdb_signal siggnal)
Definition: infrun.c:6387
int sync_execution
Definition: infrun.c:117
void print_end_stepping_range_reason(struct ui_out *uiout)
Definition: infrun.c:6375
void wait_for_inferior(void)
Definition: infrun.c:3165
bfd_byte gdb_byte
Definition: common-types.h:38
int stop_on_solib_events
Definition: infrun.c:332
int disable_randomization
Definition: infrun.c:151
void print_stop_event(struct target_waitstatus *ws)
Definition: infrun.c:6486
void normal_stop(void)
Definition: infrun.c:6551
void displaced_step_dump_bytes(struct ui_file *file, const gdb_byte *buf, size_t len)
Definition: infrun.c:1615
int non_stop
Definition: infrun.c:180
int step_stop_if_no_debug
Definition: infrun.c:107
void fetch_inferior_event(void *)
Definition: infrun.c:3257
void set_step_info(struct frame_info *frame, struct symtab_and_line sal)
Definition: infrun.c:3371
int signal_stop_state(int)
Definition: infrun.c:6780
int signal_pass_state(int)
Definition: infrun.c:6792
ptid_t user_visible_resume_ptid(int step)
Definition: infrun.c:2021
const ULONGEST const LONGEST len
Definition: target.h:309