grub/util/grub-emu.c
marco_g daac212ae3 2005-11-06 Marco Gerards <mgerards@xs4all.nl>
Add initial scripting support.

	* commands/test.c: New file.
	* include/grub/script.h: Likewise.
	* normal/execute.c: Likewise.
	* normal/function.c: Likewise.
	* normal/lexer.c: Likewise.
	* normal/parser.y: Likewise.
	* normal/script.c: Likewise.

	* configure.ac: Add `AC_PROG_YACC' test.

	* conf/i386-pc.rmk (grub_emu_SOURCES): Add `commands/test.c',
	`normal/execute.c', `normal/lexer.c', `grub_script.tab.c',
	`normal/function.c' and `normal/script.c'.
	(normal_mod_SOURCES): `normal/execute.c', `normal/lexer.c',
	`grub_script.tab.c', `normal/function.c' and `normal/script.c'.
	(test_mod_SOURCES, test_mod_CFLAGS, test_mod_LDFLAGS): New variables.
	(pkgdata_MODULES): Add `test.mod'.
	(grub_script.tab.c): New rule.
	(grub_script.tab.h): Likewise.

	* include/grub/err.h (grub_err_t): Add `GRUB_ERR_TEST_FAILURE'.

	* include/grub/normal.h (grub_test_init): New prototype.
	(grub_test_fini): Likewise.

	* normal/command.c: Include <grub/script.h>.
	(grub_command_execute): Rewritten.

	* util/grub-emu.c (main): Call `grub_test_init' and
	`grub_test_fini'.
2005-11-06 22:19:59 +00:00

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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
*
* GRUB 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 2 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 GRUB; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <stdlib.h>
#include <malloc.h>
#include <sys/stat.h>
#include <argp.h>
#include <string.h>
#include <signal.h>
#include <sys/types.h>
#include <unistd.h>
#include <grub/mm.h>
#include <grub/setjmp.h>
#include <grub/fs.h>
#include <grub/i386/pc/util/biosdisk.h>
#include <grub/dl.h>
#include <grub/machine/console.h>
#include <grub/util/misc.h>
#include <grub/kernel.h>
#include <grub/normal.h>
#include <grub/util/getroot.h>
#include <grub/env.h>
#include <grub/partition.h>
#ifdef __NetBSD__
/* NetBSD uses /boot for its boot block. */
# define DEFAULT_DIRECTORY "/grub"
#else
# define DEFAULT_DIRECTORY "/boot/grub"
#endif
#define DEFAULT_DEVICE_MAP DEFAULT_DIRECTORY "/device.map"
/* Used for going back to the main function. */
jmp_buf main_env;
grub_addr_t
grub_arch_modules_addr (void)
{
return 0;
}
grub_err_t
grub_arch_dl_check_header (void *ehdr)
{
(void) ehdr;
return GRUB_ERR_BAD_MODULE;
}
grub_err_t
grub_arch_dl_relocate_symbols (grub_dl_t mod, void *ehdr)
{
(void) mod;
(void) ehdr;
return GRUB_ERR_BAD_MODULE;
}
void
grub_machine_init (void)
{
signal (SIGINT, SIG_IGN);
grub_console_init ();
}
void
grub_machine_fini (void)
{
grub_console_fini ();
}
const char *argp_program_version = PACKAGE_STRING;
const char *argp_program_bug_address = PACKAGE_BUGREPORT;
static char doc[] = "GRUB emulator";
static struct argp_option options[] = {
{"root-device", 'r', "DEV", 0, "use DEV as the root device [default=guessed]", 0},
{"device-map", 'm', "FILE", 0, "use FILE as the device map", 0},
{"directory", 'd', "DIR", 0, "use GRUB files in the directory DIR", 0},
{"verbose", 'v', 0 , 0, "print verbose messages", 0},
{"hold", 'H', "SECONDS", OPTION_ARG_OPTIONAL, "wait until a debugger will attach", 0},
{ 0, 0, 0, 0, 0, 0 }
};
struct arguments
{
char *root_dev;
char *dev_map;
char *dir;
int hold;
};
static error_t
parse_opt (int key, char *arg, struct argp_state *state)
{
struct arguments *args = state->input;
switch (key)
{
case 'r':
args->root_dev = arg;
break;
case 'd':
args->dir = arg;
break;
case 'm':
args->dev_map = arg;
break;
case 'v':
verbosity++;
break;
case 'H':
args->hold = arg ? atoi (arg) : -1;
break;
case ARGP_KEY_END:
break;
default:
return ARGP_ERR_UNKNOWN;
}
return 0;
}
static struct argp argp = {options, parse_opt, 0, doc, 0, 0, 0};
int
main (int argc, char *argv[])
{
char *prefix = 0;
char rootprefix[100];
struct arguments args =
{
.dir = DEFAULT_DIRECTORY,
.dev_map = DEFAULT_DEVICE_MAP,
.hold = 0
};
progname = "grub-emu";
argp_parse (&argp, argc, argv, 0, 0, &args);
/* Wait until the ARGS.HOLD variable is cleared by an attached debugger. */
if (args.hold && verbosity > 0)
printf ("Run \"gdb %s %d\", and set ARGS.HOLD to zero.\n",
progname, (int) getpid ());
while (args.hold)
{
if (args.hold > 0)
args.hold--;
sleep (1);
}
/* Make sure that there is a root device. */
if (! args.root_dev)
{
args.root_dev = grub_guess_root_device (args.dir ? : DEFAULT_DIRECTORY);
if (! args.root_dev)
{
grub_util_info ("guessing the root device failed, because of `%s'",
grub_errmsg);
grub_util_error ("Cannot guess the root device. Specify the option ``--root-device''.");
}
}
prefix = grub_get_prefix (args.dir ? : DEFAULT_DIRECTORY);
sprintf (rootprefix, "%s%s", args.root_dev, prefix);
grub_env_set ("prefix", rootprefix);
/* XXX: This is a bit unportable. */
grub_util_biosdisk_init (args.dev_map);
grub_pc_partition_map_init ();
grub_amiga_partition_map_init ();
grub_apple_partition_map_init ();
grub_sun_partition_map_init ();
/* Initialize the default modules. */
grub_iso9660_init ();
grub_xfs_init ();
grub_fat_init ();
grub_ext2_init ();
grub_ufs_init ();
grub_minix_init ();
grub_hfs_init ();
grub_jfs_init ();
grub_xfs_init ();
grub_sfs_init ();
grub_affs_init ();
grub_ls_init ();
grub_boot_init ();
grub_cmp_init ();
grub_cat_init ();
grub_terminal_init ();
grub_loop_init ();
grub_help_init ();
grub_halt_init ();
grub_reboot_init ();
grub_default_init ();
grub_timeout_init ();
grub_configfile_init ();
grub_search_init ();
grub_test_init ();
/* XXX: Should normal mode be started by default? */
grub_normal_init ();
/* Start GRUB! */
if (setjmp (main_env) == 0)
grub_main ();
grub_test_fini ();
grub_search_fini ();
grub_configfile_fini ();
grub_timeout_fini ();
grub_default_fini ();
grub_reboot_fini ();
grub_halt_fini ();
grub_help_fini ();
grub_loop_fini ();
grub_util_biosdisk_fini ();
grub_normal_fini ();
grub_affs_fini ();
grub_sfs_fini ();
grub_xfs_fini ();
grub_ufs_fini ();
grub_ext2_fini ();
grub_minix_fini ();
grub_hfs_fini ();
grub_jfs_fini ();
grub_fat_fini ();
grub_xfs_fini ();
grub_boot_fini ();
grub_cmp_fini ();
grub_cat_fini ();
grub_terminal_fini ();
grub_amiga_partition_map_fini ();
grub_pc_partition_map_fini ();
grub_apple_partition_map_fini ();
grub_sun_partition_map_fini ();
grub_machine_fini ();
return 0;
}