gdb/infrun.h - gdb

Data types defined

Macros defined

Source code

  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/>.  */

  18. #ifndef INFRUN_H
  19. ‌#define INFRUN_H 1

  21. #include "symtab.h"

  23. struct target_waitstatus;
  24. struct frame_info;
  25. struct address_space;

  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
  44.    process.  */
  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.  */
  57. extern int non_stop;

  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
  66.   {
  67.     EXEC_FORWARD,
  68.     EXEC_REVERSE
  69.   };

  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
  80.    register).  */
  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 ,
  116.                                                   struct frame_id);

  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,
  121.                                          CORE_ADDR address);

  123. /* Returns true if we're trying to step past an instruction that
  124.    triggers a non-steppable watchpoint.  */
  125. extern int stepping_past_nonsteppable_watchpoint (void);

  127. extern void set_step_info (struct frame_info *frame,
  128.                            struct symtab_and_line sal);

  130. /* Several print_*_reason helper functions to print why the inferior
  131.    has stopped to the passed in UIOUT.  */

  133. /* Signal received, print why the inferior has stopped.  */
  134. extern void print_signal_received_reason (struct ui_out *uiout,
  135.                                           enum gdb_signal siggnal);

  137. /* Print why the inferior has stopped.  We are done with a
  138.    step/next/si/ni command, print why the inferior has stopped.  */
  139. extern void print_end_stepping_range_reason (struct ui_out *uiout);

  141. /* The inferior was terminated by a signal, print why it stopped.  */
  142. extern void print_signal_exited_reason (struct ui_out *uiout,
  143.                                         enum gdb_signal siggnal);

  145. /* The inferior program is finished, print why it stopped.  */
  146. extern void print_exited_reason (struct ui_out *uiout, int exitstatus);

  148. /* Reverse execution: target ran out of history info, print why the
  149.    inferior has stopped.  */
  150. extern void print_no_history_reason (struct ui_out *uiout);

  152. extern void print_stop_event (struct target_waitstatus *ws);

  154. extern int signal_stop_state (int);

  156. extern int signal_print_state (int);

  158. extern int signal_pass_state (int);

  160. extern int signal_stop_update (int, int);

  162. extern int signal_print_update (int, int);

  164. extern int signal_pass_update (int, int);

  166. extern void update_signals_program_target (void);

  168. /* Clear the convenience variables associated with the exit of the
  169.    inferior.  Currently, those variables are $_exitcode and
  170.    $_exitsignal.  */
  171. extern void clear_exit_convenience_vars (void);

  173. /* Dump LEN bytes at BUF in hex to FILE, followed by a newline.  */
  174. extern void displaced_step_dump_bytes (struct ui_file *file,
  175.                                        const gdb_byte *buf, size_t len);

  177. extern struct displaced_step_closure *get_displaced_step_closure_by_addr
  178.     (CORE_ADDR addr);

  180. extern void update_observer_mode (void);

  182. extern void signal_catch_update (const unsigned int *);

  184. /* In some circumstances we allow a command to specify a numeric
  185.    signal.  The idea is to keep these circumstances limited so that
  186.    users (and scripts) develop portable habits.  For comparison,
  187.    POSIX.2 `kill' requires that 1,2,3,6,9,14, and 15 work (and using a
  188.    numeric signal at all is obsolescent.  We are slightly more lenient
  189.    and allow 1-15 which should match host signal numbers on most
  190.    systems.  Use of symbolic signal names is strongly encouraged.  */
  191. enum gdb_signal gdb_signal_from_command (int num);

  193. #endif /* INFRUN_H */