gdb/infrun.h

   1 /* Copyright (C) 1986-2014 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 "ptid.h"
  22 #include "symtab.h"
  23
  24 struct target_waitstatus;
  25 struct frame_info;
  26 struct address_space;
  27
  28 /* True if we are debugging run control.  */
  29 extern unsigned int debug_infrun;
  30
  31 /* True if we are debugging displaced stepping.  */
  32 extern int debug_displaced;
  33
  34 /* Nonzero if we want to give control to the user when we're notified
  35    of shared library events by the dynamic linker.  */
  36 extern int stop_on_solib_events;
  37
  38 /* Are we simulating synchronous execution? This is used in async gdb
  39    to implement the 'run', 'continue' etc commands, which will not
  40    redisplay the prompt until the execution is actually over.  */
  41 extern int sync_execution;
  42
  43 /* True if execution commands resume all threads of all processes by
  44    default; otherwise, resume only threads of the current inferior
  45    process.  */
  46 extern int sched_multi;
  47
  48 /* When set, stop the 'step' command if we enter a function which has
  49    no line number information.  The normal behavior is that we step
  50    over such function.  */
  51 extern int step_stop_if_no_debug;
  52
  53 /* If set, the inferior should be controlled in non-stop mode.  In
  54    this mode, each thread is controlled independently.  Execution
  55    commands apply only to the selected thread by default, and stop
  56    events stop only the thread that had the event -- the other threads
  57    are kept running freely.  */
  58 extern int non_stop;
  59
  60 /* When set (default), the target should attempt to disable the
  61    operating system's address space randomization feature when
  62    starting an inferior.  */
  63 extern int disable_randomization;
  64
  65 /* Reverse execution.  */
  66 enum exec_direction_kind
  67   {
  68     EXEC_FORWARD,
  69     EXEC_REVERSE
  70   };
  71
  72 /* The current execution direction.  This should only be set to enum
  73    exec_direction_kind values.  It is only an int to make it
  74    compatible with make_cleanup_restore_integer.  */
  75 extern int execution_direction;
  76
  77 /* Save register contents here when executing a "finish" command or
  78    are about to pop a stack dummy frame, if-and-only-if
  79    proceed_to_finish is set.  Thus this contains the return value from
  80    the called function (assuming values are returned in a
  81    register).  */
  82 extern struct regcache *stop_registers;
  83
  84 extern void start_remote (int from_tty);
  85
  86 extern void clear_proceed_status (void);
  87
  88 extern void proceed (CORE_ADDR, enum gdb_signal, int);
  89
  90 /* The `resume' routine should only be called in special circumstances.
  91    Normally, use `proceed', which handles a lot of bookkeeping.  */
  92 extern void resume (int, enum gdb_signal);
  93
  94 extern ptid_t user_visible_resume_ptid (int step);
  95
  96 extern void wait_for_inferior (void);
  97
  98 extern void normal_stop (void);
  99
 100 extern void get_last_target_status (ptid_t *ptid,
 101                                     struct target_waitstatus *status);
 102
 103 extern void prepare_for_detach (void);
 104
 105 extern void fetch_inferior_event (void *);
 106
 107 extern void init_wait_for_inferior (void);
 108
 109 extern void insert_step_resume_breakpoint_at_sal (struct gdbarch *,
 110                                                   struct symtab_and_line ,
 111                                                   struct frame_id);
 112
 113 extern void follow_inferior_reset_breakpoints (void);
 114
 115 /* Returns true if we're trying to step past the instruction at
 116    ADDRESS in ASPACE.  */
 117 extern int stepping_past_instruction_at (struct address_space *aspace,
 118                                          CORE_ADDR address);
 119
 120 extern void set_step_info (struct frame_info *frame,
 121                            struct symtab_and_line sal);
 122
 123 /* Several print_*_reason helper functions to print why the inferior
 124    has stopped to the passed in UIOUT.  */
 125
 126 /* Signal received, print why the inferior has stopped.  */
 127 extern void print_signal_received_reason (struct ui_out *uiout,
 128                                           enum gdb_signal siggnal);
 129
 130 /* Print why the inferior has stopped.  We are done with a
 131    step/next/si/ni command, print why the inferior has stopped.  */
 132 extern void print_end_stepping_range_reason (struct ui_out *uiout);
 133
 134 /* The inferior was terminated by a signal, print why it stopped.  */
 135 extern void print_signal_exited_reason (struct ui_out *uiout,
 136                                         enum gdb_signal siggnal);
 137
 138 /* The inferior program is finished, print why it stopped.  */
 139 extern void print_exited_reason (struct ui_out *uiout, int exitstatus);
 140
 141 /* Reverse execution: target ran out of history info, print why the
 142    inferior has stopped.  */
 143 extern void print_no_history_reason (struct ui_out *uiout);
 144
 145 extern void print_stop_event (struct target_waitstatus *ws);
 146
 147 extern int signal_stop_state (int);
 148
 149 extern int signal_print_state (int);
 150
 151 extern int signal_pass_state (int);
 152
 153 extern int signal_stop_update (int, int);
 154
 155 extern int signal_print_update (int, int);
 156
 157 extern int signal_pass_update (int, int);
 158
 159 extern void update_signals_program_target (void);
 160
 161 /* Clear the convenience variables associated with the exit of the
 162    inferior.  Currently, those variables are $_exitcode and
 163    $_exitsignal.  */
 164 extern void clear_exit_convenience_vars (void);
 165
 166 /* Dump LEN bytes at BUF in hex to FILE, followed by a newline.  */
 167 extern void displaced_step_dump_bytes (struct ui_file *file,
 168                                        const gdb_byte *buf, size_t len);
 169
 170 extern struct displaced_step_closure *get_displaced_step_closure_by_addr
 171     (CORE_ADDR addr);
 172
 173 extern void update_observer_mode (void);
 174
 175 extern void signal_catch_update (const unsigned int *);
 176
 177 /* In some circumstances we allow a command to specify a numeric
 178    signal.  The idea is to keep these circumstances limited so that
 179    users (and scripts) develop portable habits.  For comparison,
 180    POSIX.2 `kill' requires that 1,2,3,6,9,14, and 15 work (and using a
 181    numeric signal at all is obsolescent.  We are slightly more lenient
 182    and allow 1-15 which should match host signal numbers on most
 183    systems.  Use of symbolic signal names is strongly encouraged.  */
 184 enum gdb_signal gdb_signal_from_command (int num);
 185
 186 #endif /* INFRUN_H */