Merge GDB 7.5.1

gdb/top.c

 /* Top level stuff for GDB, the GNU debugger.
 
    Copyright (C) 1986-2012 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
@@ skipping 29 matching lines @@
 #include "top.h"
 #include "version.h"
 #include "serial.h"
 #include "doublest.h"
 #include "gdb_assert.h"
 #include "main.h"
 #include "event-loop.h"
 #include "gdbthread.h"
 #include "python/python.h"
 #include "interps.h"
+#include "observer.h"
 
 /* readline include files.  */
 #include "readline/readline.h"
 #include "readline/history.h"
 
 /* readline defines this.  */
 #undef savestring
 
 #include <sys/types.h>
 
@@ skipping 31 matching lines @@
 
 int inhibit_gdbinit = 0;
 
 /* If nonzero, and GDB has been configured to be able to use windows,
    attempt to open them upon startup.  */
 
 int use_windows = 0;
 
 extern char lang_frame_mismatch_warn[];         /* language.c */
 
-/* Flag for whether we want all the "from_tty" gubbish printed.  */
+/* Flag for whether we want to confirm potentially dangerous
+   operations.  Default is yes.  */
 
-int caution = 1;                /* Default is yes, sigh.  */
+int confirm = 1;
+
 static void
-show_caution (struct ui_file *file, int from_tty,
+show_confirm (struct ui_file *file, int from_tty,
               struct cmd_list_element *c, const char *value)
 {
   fprintf_filtered (file, _("Whether to confirm potentially "
                             "dangerous operations is %s.\n"),
                     value);
 }
 
 /* stdio stream that command input is being read from.  Set to stdin
    normally.  Set by source_command to the file we are sourcing.  Set
    to NULL if we are executing a user-defined command or interacting
@@ skipping 166 matching lines @@
 
 /* Handler for SIGHUP.  */
 
 #ifdef SIGHUP
 /* NOTE 1999-04-29: This function will be static again, once we modify
    gdb to use the event loop as the default command loop and we merge
    event-top.c into this file, top.c.  */
 /* static */ void
 quit_cover (void)
 {
-  caution = 0;                  /* Throw caution to the wind -- we're exiting.
-                                   This prevents asking the user dumb 
-                                   questions.  */
+  /* Stop asking user for confirmation --- we're exiting.  This
+     prevents asking the user dumb questions.  */
+  confirm = 0;
   quit_command ((char *) 0, 0);
 }
 #endif /* defined SIGHUP */
 
 
 /* Line number we are currently in, in a file which is being sourced.  */
 /* NOTE 1999-04-29: This variable will be static again, once we modify
    gdb to use the event loop as the default command loop and we merge
    event-top.c into this file, top.c.  */
 /* static */ int source_line_number;
@@ skipping 45 matching lines @@
   struct cleanup *cleanup;
 
   mark = value_mark ();
   cleanup = make_cleanup_value_free_to_mark (mark);
 
   /* With multiple threads running while the one we're examining is
      stopped, the dcache can get stale without us being able to detect
      it.  For the duration of the command, though, use the dcache to
      help things like backtrace.  */
   if (non_stop)