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 __MULTIBOOT_H
  20 #define __MULTIBOOT_H
  21
  22 /* Macros. */
  23
  24 /* The magic number for the Multiboot header. */
  25 #define MULTIBOOT_HEADER_MAGIC          0x1BADB002
  26
  27 /* The flags for the Multiboot header. */
  28 #define MULTIBOOT_HEADER_FLAGS          0x00010003
  29
  30 /* The magic number passed by a Multiboot-compliant boot loader. */
  31 #define MULTIBOOT_BOOTLOADER_MAGIC      0x2BADB002
  32
  33 /* The size of our stack (16KB). */
  34 #define STACK_SIZE                      0x4000
  35
  36 /* C symbol format. HAVE_ASM_USCORE is defined by configure. */
  37 #ifdef HAVE_ASM_USCORE
  38 # define EXT_C(sym)                     _ ## sym
  39 #else
  40 # define EXT_C(sym)                     sym
  41 #endif
  42
  43 #define MB_INFO_FLAG_MEM_SIZE                   0x00000001
  44 #define MB_INFO_FLAG_BOOT_DEVICE                0x00000002
  45 #define MB_INFO_FLAG_COMMAND_LINE               0x00000004
  46 #define MB_INFO_FLAG_MODULES                    0x00000008
  47 #define MB_INFO_FLAG_AOUT_SYMS                  0x00000010
  48 #define MB_INFO_FLAG_ELF_SYMS                   0x00000020
  49 #define MB_INFO_FLAG_MEMORY_MAP                 0x00000040
  50 #define MB_INFO_FLAG_DRIVES                             0x00000080
  51 #define MB_INFO_FLAG_CONFIG_TABLE               0x00000100
  52 #define MB_INFO_FLAG_BOOT_LOADER_NAME   0x00000200
  53 #define MB_INFO_FLAG_APM_TABLE                  0x00000400
  54 #define MB_INFO_FLAG_GRAPHICS_TABLE             0x00000800
  55
  56 #ifndef ASM
  57 /* Do not include here in boot.S. */
  58
  59 /* Types. */
  60
  61 /* The Multiboot header. */
  62 typedef struct multiboot_header
  63 {
  64   unsigned long magic;
  65   unsigned long flags;
  66   unsigned long checksum;
  67   unsigned long header_addr;
  68   unsigned long load_addr;
  69   unsigned long load_end_addr;
  70   unsigned long bss_end_addr;
  71   unsigned long entry_addr;
  72 } multiboot_header_t;
  73
  74 /* The symbol table for a.out. */
  75 typedef struct aout_symbol_table
  76 {
  77   unsigned long tabsize;
  78   unsigned long strsize;
  79   unsigned long addr;
  80   unsigned long reserved;
  81 } aout_symbol_table_t;
  82
  83 /* The section header table for ELF. */
  84 typedef struct elf_section_header_table
  85 {
  86   unsigned long num;
  87   unsigned long size;
  88   unsigned long addr;
  89   unsigned long shndx;
  90 } elf_section_header_table_t;
  91
  92 /* The memory map. Be careful that the offset 0 is base_addr_low
  93    but no size. */
  94 typedef struct memory_map
  95 {
  96   //unsigned long size;
  97   unsigned long base_addr_low;
  98   unsigned long base_addr_high;
  99   unsigned long length_low;
 100   unsigned long length_high;
 101   unsigned long type;
 102   unsigned long reserved;
 103 } memory_map_t;
 104
 105 #endif /* ! ASM */
 106
 107
 108 #endif // defined __MULTIBOOT_H