Whoever put together the grub multiboot.h header is insane.
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Michael Brown
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c468c68661
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/* multiboot.h - the header for Multiboot */
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/* Copyright (C) 1999, 2001 Free Software Foundation, Inc.
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This program 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 2 of the License, or
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(at your option) any later version.
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This program 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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#ifndef _MULTIBOOT_H
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#define _MULTIBOOT_H
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/* Macros. */
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/* The magic number for the Multiboot header. */
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#define MULTIBOOT_HEADER_MAGIC 0x1BADB002
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/* The flags for the Multiboot header. */
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#ifdef __ELF__
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# define MULTIBOOT_HEADER_FLAGS 0x00000003
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#else
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# define MULTIBOOT_HEADER_FLAGS 0x00010003
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#endif
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/* The magic number passed by a Multiboot-compliant boot loader. */
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#define MULTIBOOT_BOOTLOADER_MAGIC 0x2BADB002
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/* The size of our stack (16KB). */
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#define STACK_SIZE 0x4000
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/* C symbol format. HAVE_ASM_USCORE is defined by configure. */
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#ifdef HAVE_ASM_USCORE
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# define EXT_C(sym) _ ## sym
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#else
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# define EXT_C(sym) sym
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#endif
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#ifndef ASM
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/* Do not include here in boot.S. */
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/* Types. */
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/* The Multiboot header. */
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typedef struct multiboot_header
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{
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unsigned long magic;
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unsigned long flags;
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unsigned long checksum;
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unsigned long header_addr;
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unsigned long load_addr;
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unsigned long load_end_addr;
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unsigned long bss_end_addr;
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unsigned long entry_addr;
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} multiboot_header_t;
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/* The symbol table for a.out. */
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typedef struct multiboot_aout_symbol_table
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{
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unsigned long tabsize;
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unsigned long strsize;
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unsigned long addr;
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unsigned long reserved;
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} multiboot_aout_symbol_table_t;
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/* The section header table for ELF. */
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typedef struct multiboot_elf_section_header_table
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{
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unsigned long num;
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unsigned long size;
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unsigned long addr;
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unsigned long shndx;
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} multiboot_elf_section_header_table_t;
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/* The Multiboot information. */
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typedef struct multiboot_info
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{
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unsigned long flags;
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unsigned long mem_lower;
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unsigned long mem_upper;
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unsigned long boot_device;
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unsigned long cmdline;
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unsigned long mods_count;
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unsigned long mods_addr;
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union
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{
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multiboot_aout_symbol_table_t aout_sym;
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multiboot_elf_section_header_table_t elf_sec;
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} u;
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unsigned long mmap_length;
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unsigned long mmap_addr;
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unsigned long drives_length;
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unsigned long drives_addr;
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unsigned long config_table;
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unsigned long boot_loader_name;
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unsigned long apm_table;
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unsigned long vbe_control_info;
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unsigned long vbe_mode_info;
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unsigned short vbe_mode;
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unsigned short vbe_interface_seg;
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unsigned short vbe_interface_off;
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unsigned short vbe_interface_len;
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} multiboot_info_t;
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/* The module structure. */
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typedef struct multiboot_module
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{
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unsigned long mod_start;
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unsigned long mod_end;
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unsigned long string;
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unsigned long reserved;
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} multiboot_module_t;
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/* The memory map. Be careful that the offset 0 is base_addr_low
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but no size. */
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typedef struct multiboot_memory_map
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{
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unsigned long size;
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unsigned long base_addr_low;
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unsigned long base_addr_high;
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unsigned long length_low;
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unsigned long length_high;
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unsigned long type;
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} multiboot_memory_map_t;
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#endif /* ! ASM */
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/*
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* Local variables:
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* c-basic-offset: 2
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* End:
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/**
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* @file
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*
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* Multiboot operating systems
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*
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*/
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#include <stdint.h>
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/** The magic number for the Multiboot header */
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#define MULTIBOOT_HEADER_MAGIC 0x1BADB002
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/** Boot modules must be page aligned */
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#define MB_FLAG_PGALIGN 0x00000001
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/** Memory map must be provided */
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#define MB_FLAG_MEMMAP 0x00000002
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/** Video mode information must be provided */
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#define MB_FLAG_VIDMODE 0x00000004
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/** Image is a raw multiboot image (not ELF) */
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#define MB_FLAG_RAW 0x00010000
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/**
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* The magic number passed by a Multiboot-compliant boot loader
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*
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* Must be passed in register %eax when jumping to the Multiboot OS
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* image.
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*/
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#define MULTIBOOT_BOOTLOADER_MAGIC 0x2BADB002
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/** Multiboot information structure mem_* fields are valid */
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#define MBI_FLAG_MEM 0x00000001
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/** Multiboot information structure boot_device field is valid */
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#define MBI_FLAG_BOOTDEV 0x00000002
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/** Multiboot information structure cmdline field is valid */
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#define MBI_FLAG_CMDLINE 0x00000004
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/** Multiboot information structure module fields are valid */
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#define MBI_FLAG_MODS 0x00000008
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/** Multiboot information structure a.out symbol table is valid */
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#define MBI_FLAG_AOUT 0x00000010
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/** Multiboot information struture ELF section header table is valid */
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#define MBI_FLAG_ELF 0x00000020
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/** Multiboot information structure memory map is valid */
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#define MBI_FLAG_MMAP 0x00000040
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/** Multiboot information structure drive list is valid */
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#define MBI_FLAG_DRIVES 0x00000080
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/** Multiboot information structure ROM configuration field is valid */
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#define MBI_FLAG_CFGTBL 0x00000100
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/** Multiboot information structure boot loader name field is valid */
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#define MBI_FLAG_LOADER 0x00000200
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/** Multiboot information structure APM table is valid */
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#define MBI_FLAG_APM 0x00000400
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/** Multiboot information structure video information is valid */
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#define MBI_FLAG_VBE 0x00000800
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/** A multiboot header */
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struct multiboot_header {
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uint32_t magic;
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uint32_t flags;
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uint32_t checksum;
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uint32_t header_addr;
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uint32_t load_addr;
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uint32_t load_end_addr;
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uint32_t bss_end_addr;
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uint32_t entry_addr;
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} __attribute__ (( packed, may_alias ));
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/** A multiboot a.out symbol table */
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struct multiboot_aout_symbol_table {
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uint32_t tabsize;
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uint32_t strsize;
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uint32_t addr;
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uint32_t reserved;
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} __attribute__ (( packed, may_alias ));
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/** A multiboot ELF section header table */
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struct multiboot_elf_section_header_table {
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uint32_t num;
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uint32_t size;
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uint32_t addr;
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uint32_t shndx;
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} __attribute__ (( packed, may_alias ));
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/** A multiboot information structure */
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struct multiboot_info {
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uint32_t flags;
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uint32_t mem_lower;
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uint32_t mem_upper;
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uint32_t boot_device;
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uint32_t cmdline;
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uint32_t mods_count;
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uint32_t mods_addr;
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union {
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struct multiboot_aout_symbol_table aout_syms;
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struct multiboot_elf_section_header_table elf_sections;
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} syms;
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uint32_t mmap_length;
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uint32_t mmap_addr;
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uint32_t drives_length;
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uint32_t drives_addr;
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uint32_t config_table;
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uint32_t boot_loader_name;
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uint32_t apm_table;
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uint32_t vbe_control_info;
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uint32_t vbe_mode_info;
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uint16_t vbe_mode;
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uint16_t vbe_interface_seg;
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uint16_t vbe_interface_off;
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uint16_t vbe_interface_len;
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} __attribute__ (( packed, may_alias ));
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/** A multiboot module structure */
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struct multiboot_module {
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uint32_t mod_start;
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uint32_t mod_end;
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uint32_t string;
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uint32_t reserved;
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} __attribute__ (( packed, may_alias ));
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/** A multiboot memory map entry */
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struct multiboot_memory_map {
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uint32_t size;
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uint64_t base_addr;
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uint64_t length;
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uint32_t type;
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} __attribute__ (( packed, may_alias ));
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/** Usable RAM */
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#define MBMEM_RAM 1
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#endif /* _MULTIBOOT_H */
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