boot/freeldr/freeldr/include/multiboot.h

   1 /* multiboot.h - the header for Multiboot */
   2 /* Copyright (C) 1999  Free Software Foundation, Inc.
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 2 of the License, or
   7    (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License along
  15    with this program; if not, write to the Free Software Foundation, Inc.,
  16    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17 */
  18
  19 #ifndef __ASM__
  20 #pragma once
  21 #endif
  22
  23 /* Macros. */
  24
  25 /* The magic number for the Multiboot header. */
  26 #define MULTIBOOT_HEADER_MAGIC          HEX(1BADB002)
  27
  28 /* The flags for the Multiboot header. */
  29 #define MULTIBOOT_HEADER_FLAGS          HEX(00010003)
  30
  31 /* The magic number passed by a Multiboot-compliant boot loader. */
  32 #define MULTIBOOT_BOOTLOADER_MAGIC      HEX(2BADB002)
  33
  34 /* The size of our stack (16KB). */
  35 #define STACK_SIZE                      0x4000
  36
  37 /* C symbol format. HAVE_ASM_USCORE is defined by configure. */
  38 #ifdef HAVE_ASM_USCORE
  39 # define EXT_C(sym)                     _ ## sym
  40 #else
  41 # define EXT_C(sym)                     sym
  42 #endif
  43
  44 #define MB_INFO_FLAG_MEM_SIZE            HEX(00000001)
  45 #define MB_INFO_FLAG_BOOT_DEVICE        HEX(00000002)
  46 #define MB_INFO_FLAG_COMMAND_LINE        HEX(00000004)
  47 #define MB_INFO_FLAG_MODULES            HEX(00000008)
  48 #define MB_INFO_FLAG_AOUT_SYMS            HEX(00000010)
  49 #define MB_INFO_FLAG_ELF_SYMS            HEX(00000020)
  50 #define MB_INFO_FLAG_MEMORY_MAP            HEX(00000040)
  51 #define MB_INFO_FLAG_DRIVES                HEX(00000080)
  52 #define MB_INFO_FLAG_CONFIG_TABLE        HEX(00000100)
  53 #define MB_INFO_FLAG_BOOT_LOADER_NAME    HEX(00000200)
  54 #define MB_INFO_FLAG_APM_TABLE            HEX(00000400)
  55 #define MB_INFO_FLAG_GRAPHICS_TABLE        HEX(00000800)
  56
  57 #ifndef __ASM__
  58 /* Do not include here in boot.S. */
  59
  60 /* Types. */
  61
  62 /* The Multiboot header. */
  63 typedef struct multiboot_header
  64 {
  65   unsigned long magic;
  66   unsigned long flags;
  67   unsigned long checksum;
  68   unsigned long header_addr;
  69   unsigned long load_addr;
  70   unsigned long load_end_addr;
  71   unsigned long bss_end_addr;
  72   unsigned long entry_addr;
  73 } multiboot_header_t;
  74
  75 /* The symbol table for a.out. */
  76 typedef struct aout_symbol_table
  77 {
  78   unsigned long tabsize;
  79   unsigned long strsize;
  80   unsigned long addr;
  81   unsigned long reserved;
  82 } aout_symbol_table_t;
  83
  84 /* The section header table for ELF. */
  85 typedef struct elf_section_header_table
  86 {
  87   unsigned long num;
  88   unsigned long size;
  89   unsigned long addr;
  90   unsigned long shndx;
  91 } elf_section_header_table_t;
  92
  93 /* The memory map. Be careful that the offset 0 is base_addr_low
  94    but no size. */
  95 typedef struct memory_map
  96 {
  97   //unsigned long size;
  98   unsigned long base_addr_low;
  99   unsigned long base_addr_high;
 100   unsigned long length_low;
 101   unsigned long length_high;
 102   unsigned long type;
 103   unsigned long reserved;
 104 } memory_map_t;
 105
 106 #endif /* ! __ASM__ */