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55a581dc06
* conf/i386-pc.rmk (kernel_img_HEADERS): Add `machine/kernel.h'.
(pkglib_MODULES): Add `memdisk.mod'.
(memdisk_mod_SOURCES): New variable.
(memdisk_mod_CFLAGS): Likewise.
(memdisk_mod_LDFLAGS): Likewise.
* disk/memdisk.c: New file.
* include/grub/disk.h (grub_disk_dev_id): Add
`GRUB_DISK_DEVICE_MEMDISK_ID'.
* include/grub/i386/pc/kernel.h
(GRUB_KERNEL_MACHINE_MEMDISK_IMAGE_SIZE): New macro.
(GRUB_KERNEL_MACHINE_PREFIX): Increment by 4.
(grub_kernel_image_size): New variable declaration.
(grub_total_module_size): Likewise.
(grub_memdisk_image_size): Likewise.
* include/grub/i386/pc/memory.h
(GRUB_MEMORY_MACHINE_DECOMPRESSION_ADDR): New macro.
* include/grub/kernel.h: Include `<grub/symbol.h>'.
(grub_arch_memdisk_addr): New variable declaration.
(grub_arch_memdisk_size): Likewise.
* kern/i386/pc/init.c (grub_arch_memdisk_addr): New function.
(grub_arch_memdisk_size): Likewise.
* kern/i386/pc/startup.S (grub_memdisk_image_size): New variable.
(codestart): Replace hardcoded `0x100000' with
`GRUB_MEMORY_MACHINE_DECOMPRESSION_ADDR' macro.
* util/i386/pc/grub-mkimage.c: Include `<grub/misc.h>'.
(generate_image): Add `memdisk_path' parameter. When `memdisk_path' is
not NULL, append the contents of the file it refers to, at the end of
the compressed kernel image. Initialize `grub_memdisk_image_size'
variable (at `GRUB_KERNEL_MACHINE_MEMDISK_IMAGE_SIZE' offset).
(options): Add "memdisk"|'m' option.
(main): Parse --memdisk|-m option, and pass user-provided path as
parameter to generate_image().
67 lines
2.0 KiB
C
67 lines
2.0 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2002,2005,2006,2007 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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#ifndef GRUB_KERNEL_HEADER
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#define GRUB_KERNEL_HEADER 1
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#include <grub/types.h>
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#include <grub/symbol.h>
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/* The module header. */
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struct grub_module_header
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{
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/* The offset of object code. */
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grub_target_off_t offset;
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/* The size of object code plus this header. */
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grub_target_size_t size;
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};
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/* "gmim" (GRUB Module Info Magic). */
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#define GRUB_MODULE_MAGIC 0x676d696d
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struct grub_module_info
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{
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/* Magic number so we know we have modules present. */
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grub_uint32_t magic;
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/* The offset of the modules. */
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grub_target_off_t offset;
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/* The size of all modules plus this header. */
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grub_target_size_t size;
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};
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extern grub_addr_t grub_arch_modules_addr (void);
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extern grub_addr_t EXPORT_FUNC(grub_arch_memdisk_addr) (void);
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extern grub_off_t EXPORT_FUNC(grub_arch_memdisk_size) (void);
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/* The start point of the C code. */
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void grub_main (void);
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/* The machine-specific initialization. This must initialize memory. */
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void grub_machine_init (void);
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/* The machine-specific finalization. */
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void grub_machine_fini (void);
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/* The machine-specific prefix initialization. */
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void grub_machine_set_prefix (void);
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/* Register all the exported symbols. This is automatically generated. */
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void grub_register_exported_symbols (void);
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#endif /* ! GRUB_KERNEL_HEADER */
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