gdb/observable.c

   1 /* GDB Notifications to Observers.
   2
   3    Copyright (C) 2003-2021 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #include "defs.h"
  21 #include "observable.h"
  22 #include "command.h"
  23 #include "gdbcmd.h"
  24
  25 namespace gdb
  26 {
  27
  28 namespace observers
  29 {
  30
  31 bool observer_debug = false;
  32
  33 #define DEFINE_OBSERVABLE(name) decltype (name) name (# name)
  34
  35 DEFINE_OBSERVABLE (normal_stop);
  36 DEFINE_OBSERVABLE (signal_received);
  37 DEFINE_OBSERVABLE (end_stepping_range);
  38 DEFINE_OBSERVABLE (signal_exited);
  39 DEFINE_OBSERVABLE (exited);
  40 DEFINE_OBSERVABLE (no_history);
  41 DEFINE_OBSERVABLE (sync_execution_done);
  42 DEFINE_OBSERVABLE (command_error);
  43 DEFINE_OBSERVABLE (target_changed);
  44 DEFINE_OBSERVABLE (executable_changed);
  45 DEFINE_OBSERVABLE (inferior_created);
  46 DEFINE_OBSERVABLE (inferior_execd);
  47 DEFINE_OBSERVABLE (record_changed);
  48 DEFINE_OBSERVABLE (solib_loaded);
  49 DEFINE_OBSERVABLE (solib_unloaded);
  50 DEFINE_OBSERVABLE (new_objfile);
  51 DEFINE_OBSERVABLE (free_objfile);
  52 DEFINE_OBSERVABLE (new_thread);
  53 DEFINE_OBSERVABLE (thread_exit);
  54 DEFINE_OBSERVABLE (thread_stop_requested);
  55 DEFINE_OBSERVABLE (target_resumed);
  56 DEFINE_OBSERVABLE (about_to_proceed);
  57 DEFINE_OBSERVABLE (breakpoint_created);
  58 DEFINE_OBSERVABLE (breakpoint_deleted);
  59 DEFINE_OBSERVABLE (breakpoint_modified);
  60 DEFINE_OBSERVABLE (traceframe_changed);
  61 DEFINE_OBSERVABLE (architecture_changed);
  62 DEFINE_OBSERVABLE (thread_ptid_changed);
  63 DEFINE_OBSERVABLE (inferior_added);
  64 DEFINE_OBSERVABLE (inferior_appeared);
  65 DEFINE_OBSERVABLE (inferior_exit);
  66 DEFINE_OBSERVABLE (inferior_removed);
  67 DEFINE_OBSERVABLE (memory_changed);
  68 DEFINE_OBSERVABLE (before_prompt);
  69 DEFINE_OBSERVABLE (gdb_datadir_changed);
  70 DEFINE_OBSERVABLE (command_param_changed);
  71 DEFINE_OBSERVABLE (tsv_created);
  72 DEFINE_OBSERVABLE (tsv_deleted);
  73 DEFINE_OBSERVABLE (tsv_modified);
  74 DEFINE_OBSERVABLE (inferior_call_pre);
  75 DEFINE_OBSERVABLE (inferior_call_post);
  76 DEFINE_OBSERVABLE (register_changed);
  77 DEFINE_OBSERVABLE (user_selected_context_changed);
  78 DEFINE_OBSERVABLE (source_styling_changed);
  79 DEFINE_OBSERVABLE (current_source_symtab_and_line_changed);
  80
  81 } /* namespace observers */
  82 } /* namespace gdb */
  83
  84 static void
  85 show_observer_debug (struct ui_file *file, int from_tty,
  86                      struct cmd_list_element *c, const char *value)
  87 {
  88   fprintf_filtered (file, _("Observer debugging is %s.\n"), value);
  89 }
  90
  91 void _initialize_observer ();
  92 void
  93 _initialize_observer ()
  94 {
  95   add_setshow_boolean_cmd ("observer", class_maintenance,
  96                            &gdb::observers::observer_debug, _("\
  97 Set observer debugging."), _("\
  98 Show observer debugging."), _("\
  99 When non-zero, observer debugging is enabled."),
 100                            NULL,
 101                            show_observer_debug,
 102                            &setdebuglist, &showdebuglist);
 103 }