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 #pragma once
  20
  21 /* Macros. */
  22
  23 /* The magic number for the Multiboot header. */
  24 #define MULTIBOOT_HEADER_MAGIC          0x1BADB002
  25
  26 /* The flags for the Multiboot header. */
  27 #define MULTIBOOT_HEADER_FLAGS          0x00010003
  28
  29 /* The magic number passed by a Multiboot-compliant boot loader. */
  30 #define MULTIBOOT_BOOTLOADER_MAGIC      0x2BADB002
  31
  32 /* The size of our stack (16KB). */
  33 #define STACK_SIZE                      0x4000
  34
  35 /* C symbol format. HAVE_ASM_USCORE is defined by configure. */
  36 #ifdef HAVE_ASM_USCORE
  37 # define EXT_C(sym)                     _ ## sym
  38 #else
  39 # define EXT_C(sym)                     sym
  40 #endif
  41
  42 #define MB_INFO_FLAG_MEM_SIZE                   0x00000001
  43 #define MB_INFO_FLAG_BOOT_DEVICE                0x00000002
  44 #define MB_INFO_FLAG_COMMAND_LINE               0x00000004
  45 #define MB_INFO_FLAG_MODULES                    0x00000008
  46 #define MB_INFO_FLAG_AOUT_SYMS                  0x00000010
  47 #define MB_INFO_FLAG_ELF_SYMS                   0x00000020
  48 #define MB_INFO_FLAG_MEMORY_MAP                 0x00000040
  49 #define MB_INFO_FLAG_DRIVES                             0x00000080
  50 #define MB_INFO_FLAG_CONFIG_TABLE               0x00000100
  51 #define MB_INFO_FLAG_BOOT_LOADER_NAME   0x00000200
  52 #define MB_INFO_FLAG_APM_TABLE                  0x00000400
  53 #define MB_INFO_FLAG_GRAPHICS_TABLE             0x00000800
  54
  55 #ifndef ASM
  56 /* Do not include here in boot.S. */
  57
  58 /* Types. */
  59
  60 /* The Multiboot header. */
  61 typedef struct multiboot_header
  62 {
  63   unsigned long magic;
  64   unsigned long flags;
  65   unsigned long checksum;
  66   unsigned long header_addr;
  67   unsigned long load_addr;
  68   unsigned long load_end_addr;
  69   unsigned long bss_end_addr;
  70   unsigned long entry_addr;
  71 } multiboot_header_t;
  72
  73 /* The symbol table for a.out. */
  74 typedef struct aout_symbol_table
  75 {
  76   unsigned long tabsize;
  77   unsigned long strsize;
  78   unsigned long addr;
  79   unsigned long reserved;
  80 } aout_symbol_table_t;
  81
  82 /* The section header table for ELF. */
  83 typedef struct elf_section_header_table
  84 {
  85   unsigned long num;
  86   unsigned long size;
  87   unsigned long addr;
  88   unsigned long shndx;
  89 } elf_section_header_table_t;
  90
  91 /* The memory map. Be careful that the offset 0 is base_addr_low
  92    but no size. */
  93 typedef struct memory_map
  94 {
  95   //unsigned long size;
  96   unsigned long base_addr_low;
  97   unsigned long base_addr_high;
  98   unsigned long length_low;
  99   unsigned long length_high;
 100   unsigned long type;
 101   unsigned long reserved;
 102 } memory_map_t;
 103
 104 #endif /* ! ASM */