0d5d565326
Move loader out of the kernel * kern/loader.c: moved to ... * commands/boot.c: ... moved here * commands/minicmd.c (grub_mini_cmd_boot): moved to ... * commands/boot.c (grub_cmd_boot): moved here. All users updated * include/grub/kernel.h (grub_machine_fini): export * include/grub/loader.h (grub_loader_is_loaded): update declaration (grub_loader_set): likewise (grub_loader_unset): likewise (grub_loader_boot): likewise * conf/common.rmk: new module boot.mod (pkglib_MODULES): add boot.mod * conf/i386-coreboot.rmk (kernel_elf_SOURCES): remove kern/loader.c (grub_emu_SOURCES): likewise * conf/i386-efi.rmk (kernel_elf_SOURCES): likewise (grub_emu_SOURCES): likewise * conf/i386-ieee1275.rmk (kernel_elf_SOURCES): likewise (grub_emu_SOURCES): likewise * conf/i386-pc.rmk (kernel_elf_SOURCES): likewise (grub_emu_SOURCES): likewise * conf/powerpc-ieee1275.rmk (kernel_elf_SOURCES): likewise (grub_emu_SOURCES): likewise * conf/sparcs64-ieee1275.rmk (kernel_elf_SOURCES): likewise (grub_emu_SOURCES): likewise * conf/x86_64-efi.rmk (kernel_elf_SOURCES): likewise (grub_emu_SOURCES): likewise
102 lines
2.4 KiB
C
102 lines
2.4 KiB
C
/* boot.c - command to boot an operating system */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2002,2003,2004,2005,2007,2009 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/normal.h>
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#include <grub/dl.h>
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#include <grub/misc.h>
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#include <grub/loader.h>
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#include <grub/kernel.h>
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static grub_err_t (*grub_loader_boot_func) (void);
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static grub_err_t (*grub_loader_unload_func) (void);
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static int grub_loader_noreturn;
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static int grub_loader_loaded;
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int
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grub_loader_is_loaded (void)
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{
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return grub_loader_loaded;
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}
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void
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grub_loader_set (grub_err_t (*boot) (void),
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grub_err_t (*unload) (void),
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int noreturn)
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{
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if (grub_loader_loaded && grub_loader_unload_func)
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grub_loader_unload_func ();
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grub_loader_boot_func = boot;
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grub_loader_unload_func = unload;
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grub_loader_noreturn = noreturn;
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grub_loader_loaded = 1;
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}
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void
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grub_loader_unset(void)
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{
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if (grub_loader_loaded && grub_loader_unload_func)
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grub_loader_unload_func ();
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grub_loader_boot_func = 0;
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grub_loader_unload_func = 0;
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grub_loader_loaded = 0;
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}
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grub_err_t
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grub_loader_boot (void)
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{
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if (! grub_loader_loaded)
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return grub_error (GRUB_ERR_NO_KERNEL, "no loaded kernel");
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if (grub_loader_noreturn)
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grub_machine_fini ();
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return (grub_loader_boot_func) ();
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}
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/* boot */
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static grub_err_t
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grub_cmd_boot (struct grub_command *cmd __attribute__ ((unused)),
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int argc __attribute__ ((unused)),
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char *argv[] __attribute__ ((unused)))
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{
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return grub_loader_boot ();
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}
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static grub_command_t cmd_boot;
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GRUB_MOD_INIT(boot)
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{
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(void) mod; /* To stop warning. */
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cmd_boot =
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grub_register_command ("boot", grub_cmd_boot,
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0, "boot an operating system");
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}
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GRUB_MOD_FINI(boot)
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{
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grub_unregister_command (cmd_boot);
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}
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