2 * GRUB -- GRand Unified Bootloader
3 * Copyright (C) 2003,2004,2005,2006,2007,2008 Free Software Foundation, Inc.
5 * GRUB 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 * GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
24 #include <sys/types.h>
28 #include <grub/setjmp.h>
30 #include <grub/util/hostdisk.h>
32 #include <grub/machine/console.h>
33 #include <grub/util/misc.h>
34 #include <grub/kernel.h>
35 #include <grub/normal.h>
36 #include <grub/util/getroot.h>
38 #include <grub/partition.h>
40 #include <grub_emu_init.h>
42 /* Used for going back to the main function. */
45 /* Store the prefix specified by an argument. */
46 static char *prefix
= 0;
49 grub_arch_modules_addr (void)
55 grub_arch_dl_check_header (void *ehdr
)
59 return GRUB_ERR_BAD_MODULE
;
63 grub_arch_dl_relocate_symbols (grub_dl_t mod
, void *ehdr
)
68 return GRUB_ERR_BAD_MODULE
;
72 grub_machine_init (void)
77 grub_machine_set_prefix (void)
79 grub_env_set ("prefix", prefix
);
85 grub_machine_fini (void)
91 static struct option options
[] =
93 {"root-device", required_argument
, 0, 'r'},
94 {"device-map", required_argument
, 0, 'm'},
95 {"directory", required_argument
, 0, 'd'},
96 {"hold", optional_argument
, 0, 'H'},
97 {"help", no_argument
, 0, 'h'},
98 {"version", no_argument
, 0, 'V'},
99 {"verbose", no_argument
, 0, 'v'},
108 "Try ``grub-emu --help'' for more information.\n");
111 "Usage: grub-emu [OPTION]...\n"
115 " -r, --root-device=DEV use DEV as the root device [default=guessed]\n"
116 " -m, --device-map=FILE use FILE as the device map [default=%s]\n"
117 " -d, --directory=DIR use GRUB files in the directory DIR [default=%s]\n"
118 " -v, --verbose print verbose messages\n"
119 " -H, --hold[=SECONDS] wait until a debugger will attach\n"
120 " -h, --help display this message and exit\n"
121 " -V, --version print version information and exit\n"
123 "Report bugs to <%s>.\n", DEFAULT_DEVICE_MAP
, DEFAULT_DIRECTORY
, PACKAGE_BUGREPORT
);
129 main (int argc
, char *argv
[])
132 char *dir
= DEFAULT_DIRECTORY
;
133 char *dev_map
= DEFAULT_DEVICE_MAP
;
134 volatile int hold
= 0;
137 progname
= "grub-emu";
139 while ((opt
= getopt_long (argc
, argv
, "r:d:m:vH:hV", options
, 0)) != -1)
155 hold
= (optarg
? atoi (optarg
) : -1);
160 printf ("%s (%s) %s\n", progname
, PACKAGE_NAME
, PACKAGE_VERSION
);
168 fprintf (stderr
, "Unknown extra argument `%s'.\n", argv
[optind
]);
172 /* Wait until the ARGS.HOLD variable is cleared by an attached debugger. */
173 if (hold
&& verbosity
> 0)
174 printf ("Run \"gdb %s %d\", and set ARGS.HOLD to zero.\n",
175 progname
, (int) getpid ());
184 signal (SIGINT
, SIG_IGN
);
185 grub_console_init ();
187 /* XXX: This is a bit unportable. */
188 grub_util_biosdisk_init (dev_map
);
196 /* Make sure that there is a root device. */
199 char *device_name
= grub_guess_root_device (dir
);
201 grub_util_error ("cannot find a device for %s.\n", dir
);
203 root_dev
= grub_util_get_grub_dev (device_name
);
206 grub_util_info ("guessing the root device failed, because of `%s'",
208 grub_util_error ("Cannot guess the root device. Specify the option ``--root-device''.");
212 dir
= grub_get_prefix (dir
);
213 prefix
= xmalloc (strlen (root_dev
) + 2 + strlen (dir
) + 1);
214 sprintf (prefix
, "(%s)%s", root_dev
, dir
);
218 if (setjmp (main_env
) == 0)
223 grub_machine_fini ();