[apple/system_cmds.git] / gcore.tproj / dyld_shared_cache.h

/*
 * Copyright (c) 2015 Apple Inc.  All rights reserved.
 */

#include <inttypes.h>
#include <stdbool.h>
#include <uuid/uuid.h>
#include <sys/types.h>

#ifndef _DYLD_SHARED_CACHE_H
#define _DYLD_SHARED_CACHE_H

/*
 * Guilty knowledge of dyld shared cache internals, used to verify shared cache
 */
struct copied_dyld_cache_header {
    char		magic[16];		// e.g. "dyld_v0  i386"
    uint32_t	mappingOffset;		// file offset to first dyld_cache_mapping_info
    uint32_t	mappingCount;		// number of dyld_cache_mapping_info entries
    uint32_t	imagesOffset;		// file offset to first dyld_cache_image_info
    uint32_t	imagesCount;		// number of dyld_cache_image_info entries
    uint64_t	dyldBaseAddress;	// base address of dyld when cache was built
    uint64_t	codeSignatureOffset;	// file offset of code signature blob
    uint64_t	codeSignatureSize;	// size of code signature blob (zero means to end of file)
    uint64_t	slideInfoOffset;	// file offset of kernel slid info
    uint64_t	slideInfoSize;		// size of kernel slid info
    uint64_t	localSymbolsOffset;	// file offset of where local symbols are stored
    uint64_t	localSymbolsSize;	// size of local symbols information
    uint8_t		uuid[16];		// unique value for each shared cache file
    uint64_t	cacheType;		// 1 for development, 0 for optimized
};

extern bool get_uuid_from_shared_cache_mapping(const void *, size_t, uuid_t);
extern char *shared_cache_filename(const uuid_t);

#endif /* _DYLD_SHARED_CACHE_H */
Commit	Line	Data
cf37c299 A	1	/*
	2	* Copyright (c) 2015 Apple Inc. All rights reserved.
	3	*/
	4
	5	#include <inttypes.h>
	6	#include <stdbool.h>
	7	#include <uuid/uuid.h>
	8	#include <sys/types.h>
	9
	10	#ifndef _DYLD_SHARED_CACHE_H
	11	#define _DYLD_SHARED_CACHE_H
	12
	13	/*
	14	* Guilty knowledge of dyld shared cache internals, used to verify shared cache
	15	*/
	16	struct copied_dyld_cache_header {
	17	char magic[16]; // e.g. "dyld_v0 i386"
	18	uint32_t mappingOffset; // file offset to first dyld_cache_mapping_info
	19	uint32_t mappingCount; // number of dyld_cache_mapping_info entries
	20	uint32_t imagesOffset; // file offset to first dyld_cache_image_info
	21	uint32_t imagesCount; // number of dyld_cache_image_info entries
	22	uint64_t dyldBaseAddress; // base address of dyld when cache was built
	23	uint64_t codeSignatureOffset; // file offset of code signature blob
	24	uint64_t codeSignatureSize; // size of code signature blob (zero means to end of file)
	25	uint64_t slideInfoOffset; // file offset of kernel slid info
	26	uint64_t slideInfoSize; // size of kernel slid info
	27	uint64_t localSymbolsOffset; // file offset of where local symbols are stored
	28	uint64_t localSymbolsSize; // size of local symbols information
	29	uint8_t uuid[16]; // unique value for each shared cache file
	30	uint64_t cacheType; // 1 for development, 0 for optimized
	31	};
	32
	33	extern bool get_uuid_from_shared_cache_mapping(const void *, size_t, uuid_t);
	34	extern char *shared_cache_filename(const uuid_t);
	35
	36	#endif /* _DYLD_SHARED_CACHE_H */