From ddbc60b5aeef4104e4eb78b67451123407885e82 Mon Sep 17 00:00:00 2001 From: Michael Brown Date: Thu, 11 Jan 2007 21:20:27 +0000 Subject: [PATCH] Whoever put together the grub multiboot.h header is insane. --- src/arch/i386/include/multiboot.h | 279 ++++++++++++++++-------------- 1 file changed, 145 insertions(+), 134 deletions(-) diff --git a/src/arch/i386/include/multiboot.h b/src/arch/i386/include/multiboot.h index fdc0bc2e..4ca7089b 100644 --- a/src/arch/i386/include/multiboot.h +++ b/src/arch/i386/include/multiboot.h @@ -1,136 +1,147 @@ -/* multiboot.h - the header for Multiboot */ -/* Copyright (C) 1999, 2001 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. */ +#ifndef _MULTIBOOT_H +#define _MULTIBOOT_H -/* Macros. */ - -/* The magic number for the Multiboot header. */ -#define MULTIBOOT_HEADER_MAGIC 0x1BADB002 - -/* The flags for the Multiboot header. */ -#ifdef __ELF__ -# define MULTIBOOT_HEADER_FLAGS 0x00000003 -#else -# define MULTIBOOT_HEADER_FLAGS 0x00010003 -#endif - -/* The magic number passed by a Multiboot-compliant boot loader. */ -#define MULTIBOOT_BOOTLOADER_MAGIC 0x2BADB002 - -/* The size of our stack (16KB). */ -#define STACK_SIZE 0x4000 - -/* C symbol format. HAVE_ASM_USCORE is defined by configure. */ -#ifdef HAVE_ASM_USCORE -# define EXT_C(sym) _ ## sym -#else -# define EXT_C(sym) sym -#endif - -#ifndef ASM -/* Do not include here in boot.S. */ - -/* Types. */ - -/* The Multiboot header. */ -typedef struct multiboot_header -{ - unsigned long magic; - unsigned long flags; - unsigned long checksum; - unsigned long header_addr; - unsigned long load_addr; - unsigned long load_end_addr; - unsigned long bss_end_addr; - unsigned long entry_addr; -} multiboot_header_t; - -/* The symbol table for a.out. */ -typedef struct multiboot_aout_symbol_table -{ - unsigned long tabsize; - unsigned long strsize; - unsigned long addr; - unsigned long reserved; -} multiboot_aout_symbol_table_t; - -/* The section header table for ELF. */ -typedef struct multiboot_elf_section_header_table -{ - unsigned long num; - unsigned long size; - unsigned long addr; - unsigned long shndx; -} multiboot_elf_section_header_table_t; - -/* The Multiboot information. */ -typedef struct multiboot_info -{ - unsigned long flags; - unsigned long mem_lower; - unsigned long mem_upper; - unsigned long boot_device; - unsigned long cmdline; - unsigned long mods_count; - unsigned long mods_addr; - union - { - multiboot_aout_symbol_table_t aout_sym; - multiboot_elf_section_header_table_t elf_sec; - } u; - unsigned long mmap_length; - unsigned long mmap_addr; - unsigned long drives_length; - unsigned long drives_addr; - unsigned long config_table; - unsigned long boot_loader_name; - unsigned long apm_table; - unsigned long vbe_control_info; - unsigned long vbe_mode_info; - unsigned short vbe_mode; - unsigned short vbe_interface_seg; - unsigned short vbe_interface_off; - unsigned short vbe_interface_len; -} multiboot_info_t; - -/* The module structure. */ -typedef struct multiboot_module -{ - unsigned long mod_start; - unsigned long mod_end; - unsigned long string; - unsigned long reserved; -} multiboot_module_t; - -/* The memory map. Be careful that the offset 0 is base_addr_low - but no size. */ -typedef struct multiboot_memory_map -{ - unsigned long size; - unsigned long base_addr_low; - unsigned long base_addr_high; - unsigned long length_low; - unsigned long length_high; - unsigned long type; -} multiboot_memory_map_t; - -#endif /* ! ASM */ - -/* - * Local variables: - * c-basic-offset: 2 - * End: +/** + * @file + * + * Multiboot operating systems + * */ + +#include + +/** The magic number for the Multiboot header */ +#define MULTIBOOT_HEADER_MAGIC 0x1BADB002 + +/** Boot modules must be page aligned */ +#define MB_FLAG_PGALIGN 0x00000001 + +/** Memory map must be provided */ +#define MB_FLAG_MEMMAP 0x00000002 + +/** Video mode information must be provided */ +#define MB_FLAG_VIDMODE 0x00000004 + +/** Image is a raw multiboot image (not ELF) */ +#define MB_FLAG_RAW 0x00010000 + +/** + * The magic number passed by a Multiboot-compliant boot loader + * + * Must be passed in register %eax when jumping to the Multiboot OS + * image. + */ +#define MULTIBOOT_BOOTLOADER_MAGIC 0x2BADB002 + +/** Multiboot information structure mem_* fields are valid */ +#define MBI_FLAG_MEM 0x00000001 + +/** Multiboot information structure boot_device field is valid */ +#define MBI_FLAG_BOOTDEV 0x00000002 + +/** Multiboot information structure cmdline field is valid */ +#define MBI_FLAG_CMDLINE 0x00000004 + +/** Multiboot information structure module fields are valid */ +#define MBI_FLAG_MODS 0x00000008 + +/** Multiboot information structure a.out symbol table is valid */ +#define MBI_FLAG_AOUT 0x00000010 + +/** Multiboot information struture ELF section header table is valid */ +#define MBI_FLAG_ELF 0x00000020 + +/** Multiboot information structure memory map is valid */ +#define MBI_FLAG_MMAP 0x00000040 + +/** Multiboot information structure drive list is valid */ +#define MBI_FLAG_DRIVES 0x00000080 + +/** Multiboot information structure ROM configuration field is valid */ +#define MBI_FLAG_CFGTBL 0x00000100 + +/** Multiboot information structure boot loader name field is valid */ +#define MBI_FLAG_LOADER 0x00000200 + +/** Multiboot information structure APM table is valid */ +#define MBI_FLAG_APM 0x00000400 + +/** Multiboot information structure video information is valid */ +#define MBI_FLAG_VBE 0x00000800 + +/** A multiboot header */ +struct multiboot_header { + uint32_t magic; + uint32_t flags; + uint32_t checksum; + uint32_t header_addr; + uint32_t load_addr; + uint32_t load_end_addr; + uint32_t bss_end_addr; + uint32_t entry_addr; +} __attribute__ (( packed, may_alias )); + +/** A multiboot a.out symbol table */ +struct multiboot_aout_symbol_table { + uint32_t tabsize; + uint32_t strsize; + uint32_t addr; + uint32_t reserved; +} __attribute__ (( packed, may_alias )); + +/** A multiboot ELF section header table */ +struct multiboot_elf_section_header_table { + uint32_t num; + uint32_t size; + uint32_t addr; + uint32_t shndx; +} __attribute__ (( packed, may_alias )); + +/** A multiboot information structure */ +struct multiboot_info { + uint32_t flags; + uint32_t mem_lower; + uint32_t mem_upper; + uint32_t boot_device; + uint32_t cmdline; + uint32_t mods_count; + uint32_t mods_addr; + union { + struct multiboot_aout_symbol_table aout_syms; + struct multiboot_elf_section_header_table elf_sections; + } syms; + uint32_t mmap_length; + uint32_t mmap_addr; + uint32_t drives_length; + uint32_t drives_addr; + uint32_t config_table; + uint32_t boot_loader_name; + uint32_t apm_table; + uint32_t vbe_control_info; + uint32_t vbe_mode_info; + uint16_t vbe_mode; + uint16_t vbe_interface_seg; + uint16_t vbe_interface_off; + uint16_t vbe_interface_len; +} __attribute__ (( packed, may_alias )); + +/** A multiboot module structure */ +struct multiboot_module { + uint32_t mod_start; + uint32_t mod_end; + uint32_t string; + uint32_t reserved; +} __attribute__ (( packed, may_alias )); + +/** A multiboot memory map entry */ +struct multiboot_memory_map { + uint32_t size; + uint64_t base_addr; + uint64_t length; + uint32_t type; +} __attribute__ (( packed, may_alias )); + +/** Usable RAM */ +#define MBMEM_RAM 1 + +#endif /* _MULTIBOOT_H */