Mercurial > hg > Members > taiki > EFIKernel
comparison boot/fat.h @ 12:19d073459374
add mach-o header
author | taiki |
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date | Mon, 21 Jan 2013 23:29:01 +0900 |
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9:e6715e03b87a | 12:19d073459374 |
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1 /* | |
2 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. | |
3 * | |
4 * @APPLE_LICENSE_HEADER_START@ | |
5 * | |
6 * This file contains Original Code and/or Modifications of Original Code | |
7 * as defined in and that are subject to the Apple Public Source License | |
8 * Version 2.0 (the 'License'). You may not use this file except in | |
9 * compliance with the License. Please obtain a copy of the License at | |
10 * http://www.opensource.apple.com/apsl/ and read it before using this | |
11 * file. | |
12 * | |
13 * The Original Code and all software distributed under the License are | |
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
18 * Please see the License for the specific language governing rights and | |
19 * limitations under the License. | |
20 * | |
21 * @APPLE_LICENSE_HEADER_END@ | |
22 */ | |
23 #ifndef _MACH_O_FAT_H_ | |
24 #define _MACH_O_FAT_H_ | |
25 /* | |
26 * This header file describes the structures of the file format for "fat" | |
27 * architecture specific file (wrapper design). At the begining of the file | |
28 * there is one fat_header structure followed by a number of fat_arch | |
29 * structures. For each architecture in the file, specified by a pair of | |
30 * cputype and cpusubtype, the fat_header describes the file offset, file | |
31 * size and alignment in the file of the architecture specific member. | |
32 * The padded bytes in the file to place each member on it's specific alignment | |
33 * are defined to be read as zeros and can be left as "holes" if the file system | |
34 * can support them as long as they read as zeros. | |
35 * | |
36 * All structures defined here are always written and read to/from disk | |
37 * in big-endian order. | |
38 */ | |
39 | |
40 /* | |
41 * <mach/machine.h> is needed here for the cpu_type_t and cpu_subtype_t types | |
42 * and contains the constants for the possible values of these types. | |
43 */ | |
44 #include <stdint.h> | |
45 #include <mach/machine.h> | |
46 #include <architecture/byte_order.h> | |
47 | |
48 #define FAT_MAGIC 0xcafebabe | |
49 #define FAT_CIGAM 0xbebafeca /* NXSwapLong(FAT_MAGIC) */ | |
50 | |
51 struct fat_header { | |
52 uint32_t magic; /* FAT_MAGIC */ | |
53 uint32_t nfat_arch; /* number of structs that follow */ | |
54 }; | |
55 | |
56 struct fat_arch { | |
57 cpu_type_t cputype; /* cpu specifier (int) */ | |
58 cpu_subtype_t cpusubtype; /* machine specifier (int) */ | |
59 uint32_t offset; /* file offset to this object file */ | |
60 uint32_t size; /* size of this object file */ | |
61 uint32_t align; /* alignment as a power of 2 */ | |
62 }; | |
63 | |
64 #endif /* _MACH_O_FAT_H_ */ |