1/* -*- mode: C++; c-basic-offset: 4; tab-width: 4 -*-
2 *
3 * Copyright (c) 2006-2009 Apple Inc. All rights reserved.
4 *
5 * @APPLE_LICENSE_HEADER_START@
6 *
7 * This file contains Original Code and/or Modifications of Original Code
8 * as defined in and that are subject to the Apple Public Source License
9 * Version 2.0 (the 'License'). You may not use this file except in
10 * compliance with the License. Please obtain a copy of the License at
11 * http://www.opensource.apple.com/apsl/ and read it before using this
12 * file.
13 *
14 * The Original Code and all software distributed under the License are
15 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
19 * Please see the License for the specific language governing rights and
20 * limitations under the License.
21 *
22 * @APPLE_LICENSE_HEADER_END@
23 */
24#ifndef __DYLD_CACHE_FORMAT__
25#define __DYLD_CACHE_FORMAT__
26
27#include <sys/types.h>
28#include <stdint.h>
29#include <mach/shared_region.h>
30
31
32 struct dyld_cache_header
33{
34	char		magic[16];				// e.g. "dyld_v0     ppc"
35	uint32_t	mappingOffset;			// file offset to first dyld_cache_mapping_info
36	uint32_t	mappingCount;			// number of dyld_cache_mapping_info entries
37	uint32_t	imagesOffset;			// file offset to first dyld_cache_image_info
38	uint32_t	imagesCount;			// number of dyld_cache_image_info entries
39	uint64_t	dyldBaseAddress;		// base address of dyld when cache was built
40	uint64_t	codeSignatureOffset;	// file offset in of code signature blob
41	uint64_t	codeSignatureSize;		// size of code signature blob (zero means to end of file)
42};
43
44struct dyld_cache_mapping_info {
45	uint64_t	address;
46	uint64_t	size;
47	uint64_t	fileOffset;
48	uint32_t	maxProt;
49	uint32_t	initProt;
50};
51
52struct dyld_cache_image_info
53{
54	uint64_t	address;
55	uint64_t	modTime;
56	uint64_t	inode;
57	uint32_t	pathFileOffset;
58	uint32_t	pad;
59};
60
61
62#define DYLD_SHARED_CACHE_DIR			"/var/db/dyld/"
63#define DYLD_SHARED_CACHE_BASE_NAME		"dyld_shared_cache_"
64
65
66
67#endif // __DYLD_CACHE_FORMAT__
68
69
70