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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_ */ |
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