grub/loader/efi/chainloader_normal.c

50 lines
1.5 KiB
C
Raw Normal View History

2006-04-30 Yoshinori K. Okuji <okuji@enbug.org> Extend the loader so that GRUB can accept a loader which comes back to GRUB when a loaded image exits. Also, this change adds support for a chainloader on EFI. * term/efi/console.c: Include grub/misc.h. (grub_console_checkkey): Display a scan code on the top for debugging. This will be removed once the EFI port gets stable. Correct the scan code mapping. * kern/efi/mm.c (sort_memory_map): Sort in a descending order to allocate memory from larger regions, in order to reduce the number of allocated regions. Otherwise, the MacOSX loader panics. (filter_memory_map): Avoid less than 1MB for compatibility with other loaders. (add_memory_regions): Allocate from the tail of a region, if possible, to avoid allocating a region near to 1MB, for the MacOSX loader. * kern/efi/init.c (grub_efi_set_prefix): Specify GRUB_EFI_IMAGE_HANDLE to grub_efi_get_loaded_image. * kern/efi/efi.c (grub_efi_get_loaded_image): Accept a new argument IMAGE_HANDLE and specify it to get a loaded image. (grub_arch_modules_addr): Specify GRUB_EFI_IMAGE_HANDLE to grub_efi_get_loaded_image. (grub_efi_get_filename): Divide the legnth by the size of grub_efi_char16_t. (grub_efi_get_device_path): New function. (grub_efi_print_device_path): Print End Device Path nodes. Divide the length by the size of grub_efi_char16_t for a file path device path node. * kern/loader.c (grub_loader_noreturn): New variable. (grub_loader_set): Accept a new argument NORETURN. Set GRUB_LOADER_NORETURN to NORETURN. All callers changed. (grub_loader_boot): If GRUB_LOADER_NORETURN is false, do not call grub_machine_fini. * include/grub/efi/efi.h (grub_efi_get_device_path): New prototype. (grub_efi_get_loaded_image): Take an argument to specify an image handle. * include/grub/loader.h (grub_loader_set): Added one more argument NORETURN. * disk/efi/efidisk.c (make_devices): Use grub_efi_get_device_path instead of grub_efi_open_protocol. (grub_efidisk_get_device_name): Likewise. (grub_efidisk_close): Print a newline. (grub_efidisk_get_device_handle): Fixed to use GRUB_EFI_DEVICE_PATH_SUBTYPE instead of GRUB_EFI_DEVICE_PATH_TYPE. * disk/efi/efidisk.c (device_path_guid): Moved to ... * kern/efi/efi.c (device_path_guid): ... here. * conf/i386-efi.rmk (pkgdata_MODULES): Added _chain.mod and chain.mod. (kernel_mod_HEADERS): Added efi/disk.h. (_chain_mod_SOURCES): New variable. (_chain_mod_CFLAGS): Likewise. (_chain_mod_LDFLAGS): Likewise. (chain_mod_SOURCES): Likewise. (chain_mod_CFLAGS): Likewise. (chain_mod_LDFLAGS): Likewise. * DISTLIST: Added include/grub/efi/chainloader.h, loader/efi/chainloader.c and loader/efi/chainloader_normal.c. * include/grub/efi/chainloader.h: New file. * loader/efi/chainloader.c: Likewise. * loader/efi/chainloader_normal.c: Likewise.
2006-04-30 21:09:37 +00:00
/* chainloader_normal.c - boot another boot loader */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2004,2006 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/efi/chainloader.h>
#include <grub/err.h>
#include <grub/normal.h>
#include <grub/dl.h>
static grub_err_t
chainloader_command (struct grub_arg_list *state __attribute__ ((unused)),
int argc, char **args)
{
if (argc == 0)
grub_error (GRUB_ERR_BAD_ARGUMENT, "no file specified");
else
grub_chainloader_cmd (args[0]);
return grub_errno;
}
GRUB_MOD_INIT(chainloader_normal)
{
(void) mod; /* To stop warning. */
grub_register_command ("chainloader", chainloader_command,
GRUB_COMMAND_FLAG_BOTH,
"chainloader FILE",
"Prepare to boot another boot loader.", 0);
}
GRUB_MOD_FINI(chainloader_normal)
{
grub_unregister_command ("chainloader");
}