96 lines
2.2 KiB
C
96 lines
2.2 KiB
C
/* multiboot.h
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* tag: header for multiboot
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*
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* Copyright (C) 2003 Stefan Reinauer
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*
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* See the file "COPYING" for further information about
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* the copyright and warranty status of this work.
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*/
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/* magic number for multiboot header */
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#define MULTIBOOT_HEADER_MAGIC 0x1BADB002
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/* flags for multiboot header */
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#define MULTIBOOT_HEADER_FLAGS 0x00010003
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/* magic number passed by multiboot-compliant boot loader. */
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#define MULTIBOOT_BOOTLOADER_MAGIC 0x2BADB002
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/* The size of our stack (8KB). */
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#define STACK_SIZE 0x2000
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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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/* We don't want these declarations in boot.S */
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/* multiboot header */
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typedef struct multiboot_header {
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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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/* symbol table for a.out */
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typedef struct aout_symbol_table {
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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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} aout_symbol_table_t;
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/* section header table for ELF */
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typedef struct elf_section_header_table {
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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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} elf_section_header_table_t;
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/* multiboot information */
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typedef struct multiboot_info {
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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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aout_symbol_table_t aout_sym;
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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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} multiboot_info_t;
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/* module structure */
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typedef struct module {
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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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} module_t;
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/* 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 memory_map {
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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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} memory_map_t;
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#endif /* ! ASM */
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