projects / apple / xnu.git / blame
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|---|---|---|
| 1c79356b A |
1 | /* |
| 2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| d7e50217 | 6 | * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. |
| 1c79356b | 7 | * |
| d7e50217 A |
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 | |
| 1c79356b A |
17 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 18 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| d7e50217 A |
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. | |
| 1c79356b A |
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 |