binutils-gdb/gdb/guile/scm-auto-load.c

/* GDB routines for supporting auto-loaded Guile scripts.

   Copyright (C) 2010-2016 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.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#include "defs.h"
#include "top.h"
#include "gdbcmd.h"
#include "objfiles.h"
#include "cli/cli-cmds.h"
#include "auto-load.h"
#include "guile.h"
#include "guile-internal.h"

/* User-settable option to enable/disable auto-loading of Guile scripts:
   set auto-load guile-scripts on|off
   This is true if we should auto-load associated Guile scripts when an
   objfile is opened, false otherwise.  */
static int auto_load_guile_scripts = 1;

/* "show" command for the auto_load_guile_scripts configuration variable.  */

static void
show_auto_load_guile_scripts (struct ui_file *file, int from_tty,
			      struct cmd_list_element *c, const char *value)
{
  fprintf_filtered (file, _("Auto-loading of Guile scripts is %s.\n"), value);
}

/* Return non-zero if auto-loading Guile scripts is enabled.
   This is the extension_language_script_ops.auto_load_enabled "method".  */

int
gdbscm_auto_load_enabled (const struct extension_language_defn *extlang)
{
  return auto_load_guile_scripts;
}

/* Wrapper for "info auto-load guile-scripts".  */

static void
info_auto_load_guile_scripts (char *pattern, int from_tty)
{
  auto_load_info_scripts (pattern, from_tty, &extension_language_guile);
}

void
gdbscm_initialize_auto_load (void)
{
  add_setshow_boolean_cmd ("guile-scripts", class_support,
			   &auto_load_guile_scripts, _("\
Set the debugger's behaviour regarding auto-loaded Guile scripts."), _("\
Show the debugger's behaviour regarding auto-loaded Guile scripts."), _("\
If enabled, auto-loaded Guile scripts are loaded when the debugger reads\n\
an executable or shared library.\n\
This options has security implications for untrusted inferiors."),
			   NULL, show_auto_load_guile_scripts,
			   auto_load_set_cmdlist_get (),
			   auto_load_show_cmdlist_get ());

  add_cmd ("guile-scripts", class_info, info_auto_load_guile_scripts,
	   _("Print the list of automatically loaded Guile scripts.\n\
Usage: info auto-load guile-scripts [REGEXP]"),
	   auto_load_info_cmdlist_get ());
}