1 /* multiboot.h - the header for Multiboot */
2 /* Copyright (C) 1999 Free Software Foundation, Inc.
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.
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.
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.
23 /* The magic number for the Multiboot header. */
24 #define MULTIBOOT_HEADER_MAGIC 0x1BADB002
26 /* The flags for the Multiboot header. */
27 #define MULTIBOOT_HEADER_FLAGS 0x00010003
29 /* The magic number passed by a Multiboot-compliant boot loader. */
30 #define MULTIBOOT_BOOTLOADER_MAGIC 0x2BADB002
32 /* The size of our stack (16KB). */
33 #define STACK_SIZE 0x4000
35 /* C symbol format. HAVE_ASM_USCORE is defined by configure. */
36 #ifdef HAVE_ASM_USCORE
37 # define EXT_C(sym) _ ## sym
39 # define EXT_C(sym) sym
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
56 /* Do not include here in boot.S. */
60 /* The Multiboot header. */
61 typedef struct multiboot_header
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
;
73 /* The symbol table for a.out. */
74 typedef struct aout_symbol_table
76 unsigned long tabsize
;
77 unsigned long strsize
;
79 unsigned long reserved
;
80 } aout_symbol_table_t
;
82 /* The section header table for ELF. */
83 typedef struct elf_section_header_table
89 } elf_section_header_table_t
;
91 /* The memory map. Be careful that the offset 0 is base_addr_low
93 typedef struct memory_map
96 unsigned long base_addr_low
;
97 unsigned long base_addr_high
;
98 unsigned long length_low
;
99 unsigned long length_high
;
101 unsigned long reserved
;