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Diffstat (limited to 'include/grub/loader.h')
-rw-r--r-- | include/grub/loader.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/include/grub/loader.h b/include/grub/loader.h new file mode 100644 index 0000000..b208642 --- /dev/null +++ b/include/grub/loader.h @@ -0,0 +1,79 @@ +/* loader.h - OS loaders */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2002,2003,2004,2006,2007,2009 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 3 of the License, or + * (at your option) any later version. + * + * GRUB 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, see <http://www.gnu.org/licenses/>. + */ + +#ifndef GRUB_LOADER_HEADER +#define GRUB_LOADER_HEADER 1 + +#include <grub/file.h> +#include <grub/symbol.h> +#include <grub/err.h> +#include <grub/types.h> + +/* Check if a loader is loaded. */ +int EXPORT_FUNC (grub_loader_is_loaded) (void); + +/* Set loader functions. */ +enum +{ + GRUB_LOADER_FLAG_NORETURN = 1, + GRUB_LOADER_FLAG_PXE_NOT_UNLOAD = 2, + GRUB_LOADER_FLAG_EFI_KEEP_ALLOCATED_MEMORY = 4, +}; + +void EXPORT_FUNC (grub_loader_set) (grub_err_t (*boot) (void), + grub_err_t (*unload) (void), + int flags); + +/* Unset current loader, if any. */ +void EXPORT_FUNC (grub_loader_unset) (void); + +/* Call the boot hook in current loader. This may or may not return, + depending on the setting by grub_loader_set. */ +grub_err_t grub_loader_boot (void); + +/* The space between numbers is intentional for the simplicity of adding new + values even if external modules use them. */ +typedef enum { + /* A preboot hook which can use everything and turns nothing off. */ + GRUB_LOADER_PREBOOT_HOOK_PRIO_NORMAL = 400, + /* A preboot hook which can't use disks and may stop disks. */ + GRUB_LOADER_PREBOOT_HOOK_PRIO_DISK = 300, + /* A preboot hook which can't use disks or console and may stop console. */ + GRUB_LOADER_PREBOOT_HOOK_PRIO_CONSOLE = 200, + /* A preboot hook which can't use disks or console, can't modify memory map + and may stop memory services or finalize memory map. */ + GRUB_LOADER_PREBOOT_HOOK_PRIO_MEMORY = 100, +} grub_loader_preboot_hook_prio_t; + +/* Register a preboot hook. */ +struct grub_preboot; + +struct grub_preboot *EXPORT_FUNC(grub_loader_register_preboot_hook) (grub_err_t (*preboot_func) (int noret), + grub_err_t (*preboot_rest_func) (void), + grub_loader_preboot_hook_prio_t prio); + +/* Unregister given preboot hook. */ +void EXPORT_FUNC (grub_loader_unregister_preboot_hook) (struct grub_preboot *hnd); + +#ifndef GRUB_MACHINE_EMU +void grub_boot_init (void); +void grub_boot_fini (void); +#endif + +#endif /* ! GRUB_LOADER_HEADER */ |