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1 | /* | |
2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. | |
3 | * | |
4 | * @APPLE_LICENSE_HEADER_START@ | |
5 | * | |
6 | * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. | |
7 | * | |
8 | * This file contains Original Code and/or Modifications of Original Code | |
9 | * as defined in and that are subject to the Apple Public Source License | |
10 | * Version 2.0 (the 'License'). You may not use this file except in | |
11 | * compliance with the License. Please obtain a copy of the License at | |
12 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
13 | * file. | |
14 | * | |
15 | * The Original Code and all software distributed under the License are | |
16 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
17 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
18 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
19 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
20 | * Please see the License for the specific language governing rights and | |
21 | * limitations under the License. | |
22 | * | |
23 | * @APPLE_LICENSE_HEADER_END@ | |
24 | */ | |
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 <mach/machine.h> | |
45 | #include <architecture/byte_order.h> | |
46 | ||
47 | #define FAT_MAGIC 0xcafebabe | |
48 | #define FAT_CIGAM NXSwapLong(FAT_MAGIC) | |
49 | ||
50 | struct fat_header { | |
51 | unsigned long magic; /* FAT_MAGIC */ | |
52 | unsigned long nfat_arch; /* number of structs that follow */ | |
53 | }; | |
54 | ||
55 | struct fat_arch { | |
56 | cpu_type_t cputype; /* cpu specifier (int) */ | |
57 | cpu_subtype_t cpusubtype; /* machine specifier (int) */ | |
58 | unsigned long offset; /* file offset to this object file */ | |
59 | unsigned long size; /* size of this object file */ | |
60 | unsigned long align; /* alignment as a power of 2 */ | |
61 | }; | |
62 |