ezhalmb.h

嵌入式实时内核源代码

//==========================================================================
// Copyright (c) 2000-2004,  Elastos, Inc.  All Rights Reserved.
//==========================================================================
/*
 * mb.h: Define structures specified in Multiboot Standard.
 *
 * Multiboot Standard can be found in GNU GRUB package.
 */

 #ifndef _EZHALMB_H_
 #define _EZHALMB_H_

/* The magic number for the Multiboot header.  */
#define MULTIBOOT_HEADER_MAGIC        0x1BADB002

/* multiboot header flags */
#define MBHF_ALIGN4K    0x1
#define MBHF_MEMINFO    0x2
#define MBHF_VIDEOINFO  0x4
#define MBHF_ADDR       0x10000

/* The magic number passed by a Multiboot-compliant boot loader.  */
#define MULTIBOOT_BOOTLOADER_MAGIC    0x2BADB002

/* Define NO_MB_STRUCT if you dont wanna following structs to be present */
#ifndef NO_MB_STRUCT

/* 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 aout_symbol_table
{
  unsigned long tabsize;
  unsigned long strsize;
  unsigned long addr;
  unsigned long reserved;
} aout_symbol_table_t;

/* The section header table for ELF.  */
typedef struct elf_section_header_table
{
  unsigned long num;
  unsigned long size;
  unsigned long addr;
  unsigned long shndx;
} 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
  {
    aout_symbol_table_t aout_sym;
    elf_section_header_table_t elf_sec;
  } u;
  unsigned long mmap_length;
  unsigned long mmap_addr;
} multiboot_info_t;

/* The module structure.  */
typedef struct module
{
  unsigned long mod_start;
  unsigned long mod_end;
  unsigned long string;
  unsigned long reserved;
} module_t;

/* The memory map. Be careful that the offset 0 is base_addr_low
   but no size.  */
typedef struct 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;
} memory_map_t;


#endif //NO_MB_STRUCT


#endif //_EZHALMB_H_