1/* 2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_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. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28/* 29 * This header file describes the structures of the file format for "fat" 30 * architecture specific file (wrapper design). At the begining of the file 31 * there is one fat_header structure followed by a number of fat_arch 32 * structures. For each architecture in the file, specified by a pair of 33 * cputype and cpusubtype, the fat_header describes the file offset, file 34 * size and alignment in the file of the architecture specific member. 35 * The padded bytes in the file to place each member on it's specific alignment 36 * are defined to be read as zeros and can be left as "holes" if the file system 37 * can support them as long as they read as zeros. 38 * 39 * All structures defined here are always written and read to/from disk 40 * in big-endian order. 41 */ 42 43/* 44 * <mach/machine.h> is needed here for the cpu_type_t and cpu_subtype_t types 45 * and contains the constants for the possible values of these types. 46 */ 47#include <mach/machine.h> 48 49#define FAT_MAGIC 0xcafebabe 50#define FAT_CIGAM 0xbebafeca 51 52struct fat_header { 53 unsigned long magic; /* FAT_MAGIC */ 54 unsigned long nfat_arch; /* number of structs that follow */ 55}; 56 57struct fat_arch { 58 cpu_type_t cputype; /* cpu specifier (int) */ 59 cpu_subtype_t cpusubtype; /* machine specifier (int) */ 60 unsigned long offset; /* file offset to this object file */ 61 unsigned long size; /* size of this object file */ 62 unsigned long align; /* alignment as a power of 2 */ 63}; 64 65#ifdef KERNEL 66 67#include <mach/mach_types.h> 68 69struct vnode; 70 71/* XXX return type should be load_return_t, but mach_loader.h is not in scope */ 72int fatfile_getarch_affinity(struct vnode *vp, vm_offset_t data_ptr, 73 struct fat_arch *archret, int affinity); 74int fatfile_getarch(struct vnode *vp, vm_offset_t data_ptr, 75 struct fat_arch *archret); 76int fatfile_getarch_with_bits(struct vnode *vp, integer_t archbits, 77 vm_offset_t data_ptr, struct fat_arch *archret); 78 79#endif /* KERNEL */ 80