OSX/libsecurity_utilities/lib/dyld_cache_format.h

   1 /* -*- mode: C++; c-basic-offset: 4; tab-width: 4 -*-
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   3  * Copyright (c) 2006-2009,2011 Apple Inc. All Rights Reserved.
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  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
  44 struct 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
  52 struct 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