8de3495c7b
* DISTLIST: Added normal/completion.c.
* normal/completion.c: New file.
* term/i386/pc/console.c (grub_console_getwh): New function.
(grub_console_term): Assign grub_console_getwh to getwh.
* normal/cmdline.c (grub_tab_complete): Removed. Now the same
function is defined in normal/completion.c as
grub_normal_do_completion.
(grub_cmdline_get): Use grub_normal_do_completion instead of
grub_tab_complete.
* kern/partition.c (grub_partition_map_iterate): Return 1 if HOOK
returns non-zero, otherwise return 0.
(grub_partition_iterate): First, probe the partition map. Then,
call ITERATE only for this partition map.
* kern/misc.c (grub_strncmp): Rewritten.
* kern/disk.c (grub_disk_dev_iterate): Return 1 if P->ITERATE
returns non-zero. Otherwise return 0.
* include/grub/partition.h (grub_partition_map_iterate): Return
int instead of void.
* include/grub/normal.h (grub_normal_do_completion): New prototype.
* include/grub/misc.h (grub_strncmp): Change the type of N to
grub_size_t.
* include/grub/disk.h (grub_disk_dev_iterate): Return int instead
of void.
* normal/menu.c (draw_border): Cast GRUB_TERM_BORDER_WIDTH to
unsigned explictly before comparing it with I.
* kern/main.c (grub_env_write_root): Add the attribute unused into
VAR.
* conf/powerpc-ieee1275.rmk (grub_emu_SOURCES): Added
normal/completion.c.
(normal_mod_SOURCES): Likewise.
* conf/i386-pc.rmk (grub_emu_SOURCES): Likewise.
(normal_mod_SOURCES): Likewise.
* normal/command.c (grub_iterate_commands): If ITERATE returns
non-zero, return one immediately.
134 lines
3.6 KiB
C
134 lines
3.6 KiB
C
/* main.c - the kernel main routine */
|
|
/*
|
|
* GRUB -- GRand Unified Bootloader
|
|
* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
|
|
*
|
|
* 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 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 this program; if not, write to the Free Software
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
|
|
#include <grub/kernel.h>
|
|
#include <grub/misc.h>
|
|
#include <grub/mm.h>
|
|
#include <grub/symbol.h>
|
|
#include <grub/dl.h>
|
|
#include <grub/term.h>
|
|
#include <grub/rescue.h>
|
|
#include <grub/file.h>
|
|
#include <grub/device.h>
|
|
#include <grub/env.h>
|
|
|
|
/* Load all modules in core. */
|
|
static void
|
|
grub_load_modules (void)
|
|
{
|
|
struct grub_module_info *modinfo;
|
|
struct grub_module_header *header;
|
|
grub_addr_t modbase;
|
|
|
|
modbase = grub_arch_modules_addr ();
|
|
modinfo = (struct grub_module_info *) modbase;
|
|
|
|
/* Check if there are any modules. */
|
|
if ((modinfo == 0) || modinfo->magic != GRUB_MODULE_MAGIC)
|
|
return;
|
|
|
|
for (header = (struct grub_module_header *) (modbase + modinfo->offset);
|
|
header < (struct grub_module_header *) (modbase + modinfo->size);
|
|
header = (struct grub_module_header *) ((char *) header + header->size))
|
|
{
|
|
if (! grub_dl_load_core ((char *) header + header->offset,
|
|
(header->size - header->offset)))
|
|
grub_fatal ("%s", grub_errmsg);
|
|
}
|
|
|
|
/* Add the region where modules reside into dynamic memory. */
|
|
grub_mm_init_region ((void *) modinfo, modinfo->size);
|
|
}
|
|
|
|
/* Write hook for the environment variables of root. Remove surrounding
|
|
parentheses, if any. */
|
|
static char *
|
|
grub_env_write_root (struct grub_env_var *var __attribute__ ((unused)),
|
|
const char *val)
|
|
{
|
|
/* XXX Is it better to check the existence of the device? */
|
|
grub_size_t len = grub_strlen (val);
|
|
|
|
if (val[0] == '(' && val[len - 1] == ')')
|
|
return grub_strndup (val + 1, len - 2);
|
|
|
|
return grub_strdup (val);
|
|
}
|
|
|
|
/* Set the root device according to the dl prefix. */
|
|
static void
|
|
grub_set_root_dev (void)
|
|
{
|
|
const char *prefix;
|
|
|
|
grub_register_variable_hook ("root", 0, grub_env_write_root);
|
|
|
|
prefix = grub_env_get ("prefix");
|
|
|
|
if (prefix)
|
|
{
|
|
char *dev;
|
|
|
|
dev = grub_file_get_device_name (prefix);
|
|
if (dev)
|
|
{
|
|
grub_env_set ("root", dev);
|
|
grub_free (dev);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Load the normal mode module and execute the normal mode if possible. */
|
|
static void
|
|
grub_load_normal_mode (void)
|
|
{
|
|
/* Load the module. */
|
|
grub_dl_load ("normal");
|
|
|
|
/* Ignore any error, because we have the rescue mode anyway. */
|
|
grub_errno = GRUB_ERR_NONE;
|
|
}
|
|
|
|
/* The main routine. */
|
|
void
|
|
grub_main (void)
|
|
{
|
|
/* First of all, initialize the machine. */
|
|
grub_machine_init ();
|
|
|
|
/* Hello. */
|
|
grub_setcolorstate (GRUB_TERM_COLOR_HIGHLIGHT);
|
|
grub_printf ("Welcome to GRUB!\n\n");
|
|
grub_setcolorstate (GRUB_TERM_COLOR_STANDARD);
|
|
|
|
/* It is better to set the root device as soon as possible,
|
|
for convenience. */
|
|
grub_set_root_dev ();
|
|
|
|
/* Load pre-loaded modules and free the space. */
|
|
grub_register_exported_symbols ();
|
|
grub_load_modules ();
|
|
|
|
/* Load the normal mode module. */
|
|
grub_load_normal_mode ();
|
|
|
|
/* Enter the rescue mode. */
|
|
grub_enter_rescue_mode ();
|
|
}
|