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--- /dev/null
+++ dyld/dyld-360.17/launch-cache/dyld_shared_cache_util.cpp
@@ -0,0 +1,636 @@
+/* -*- mode: C++; c-basic-offset: 4; tab-width: 4 -*-
+ *
+ * Copyright (c) 2009-2012 Apple Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <string.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <sys/mman.h>
+#include <sys/syslimits.h>
+#include <mach-o/arch.h>
+#include <mach-o/loader.h>
+#include <mach/mach.h>
+
+#include <map>
+#include <vector>
+
+#include "dsc_iterator.h"
+#include "dyld_cache_format.h"
+#include "Architectures.hpp"
+#include "MachOFileAbstraction.hpp"
+#include "CacheFileAbstraction.hpp"
+
+enum Mode {
+ modeNone,
+ modeList,
+ modeMap,
+ modeDependencies,
+ modeSlideInfo,
+ modeLinkEdit,
+ modeInfo,
+ modeSize
+};
+
+struct Options {
+ Mode mode;
+ const char* dependentsOfPath;
+ const void* mappedCache;
+ bool printUUIDs;
+ bool printVMAddrs;
+ bool printDylibVersions;
+ bool printInodes;
+};
+
+struct TextInfo {
+ uint64_t textSize;
+ const char* path;
+};
+
+struct TextInfoSorter {
+ bool operator()(const TextInfo& left, const TextInfo& right) {
+ return (left.textSize > right.textSize);
+ }
+};
+
+struct Results {
+ std::map<uint32_t, const char*> pageToContent;
+ uint64_t linkeditBase;
+ bool dependentTargetFound;
+ std::vector<TextInfo> textSegments;
+};
+
+
+
+void usage() {
+ fprintf(stderr, "Usage: dyld_shared_cache_util -list [ -uuid ] [-vmaddr] | -dependents <dylib-path> [ -versions ] | -linkedit | -map [ shared-cache-file ] | -slide_info | -info\n");
+}
+
+#if __x86_64__
+static bool isHaswell()
+{
+ // check system is capable of running x86_64h code
+ struct host_basic_info info;
+ mach_msg_type_number_t count = HOST_BASIC_INFO_COUNT;
+ mach_port_t hostPort = mach_host_self();
+ kern_return_t result = host_info(hostPort, HOST_BASIC_INFO, (host_info_t)&info, &count);
+ mach_port_deallocate(mach_task_self(), hostPort);
+ if ( result != KERN_SUCCESS )
+ return false;
+ return ( info.cpu_subtype == CPU_SUBTYPE_X86_64_H );
+}
+#endif
+
+/*
+ * Get the path to the native shared cache for this host
+ */
+static const char* default_shared_cache_path() {
+#if __i386__
+ return MACOSX_DYLD_SHARED_CACHE_DIR DYLD_SHARED_CACHE_BASE_NAME "i386";
+#elif __x86_64__
+ if ( isHaswell() )
+ return MACOSX_DYLD_SHARED_CACHE_DIR DYLD_SHARED_CACHE_BASE_NAME "x86_64h";
+ else
+ return MACOSX_DYLD_SHARED_CACHE_DIR DYLD_SHARED_CACHE_BASE_NAME "x86_64";
+#elif __ARM_ARCH_5TEJ__
+ return IPHONE_DYLD_SHARED_CACHE_DIR DYLD_SHARED_CACHE_BASE_NAME "armv5";
+#elif __ARM_ARCH_6K__
+ return IPHONE_DYLD_SHARED_CACHE_DIR DYLD_SHARED_CACHE_BASE_NAME "armv6";
+#elif __ARM_ARCH_7K__
+ return IPHONE_DYLD_SHARED_CACHE_DIR DYLD_SHARED_CACHE_BASE_NAME "armv7k";
+#elif __ARM_ARCH_7A__
+ return IPHONE_DYLD_SHARED_CACHE_DIR DYLD_SHARED_CACHE_BASE_NAME "armv7";
+#elif __ARM_ARCH_7F__
+ return IPHONE_DYLD_SHARED_CACHE_DIR DYLD_SHARED_CACHE_BASE_NAME "armv7f";
+#elif __ARM_ARCH_7S__
+ return IPHONE_DYLD_SHARED_CACHE_DIR DYLD_SHARED_CACHE_BASE_NAME "armv7s";
+#elif __arm64__
+ return IPHONE_DYLD_SHARED_CACHE_DIR DYLD_SHARED_CACHE_BASE_NAME "arm64";
+#else
+ #error unsupported architecture
+#endif
+}
+
+typedef void (*segment_callback_t)(const dyld_shared_cache_dylib_info* dylibInfo, const dyld_shared_cache_segment_info* segInfo,
+ const Options& options, Results& results);
+
+
+
+/*
+ * List dependencies from the mach-o header at headerAddr
+ * in the same format as 'otool -L'
+ */
+template <typename A>
+void print_dependencies(const dyld_shared_cache_dylib_info* dylibInfo, const dyld_shared_cache_segment_info* segInfo,
+ const Options& options, Results& results) {
+ typedef typename A::P P;
+ typedef typename A::P::E E;
+
+ if ( strcmp(options.dependentsOfPath, dylibInfo->path) != 0 )
+ return;
+ if ( strcmp(segInfo->name, "__TEXT") != 0 )
+ return;
+
+ const macho_dylib_command<P>* dylib_cmd;
+ const macho_header<P>* mh = (const macho_header<P>*)dylibInfo->machHeader;
+ const macho_load_command<P>* const cmds = (macho_load_command<P>*)((uintptr_t)dylibInfo->machHeader + sizeof(macho_header<P>));
+ const uint32_t cmd_count = mh->ncmds();
+ const macho_load_command<P>* cmd = cmds;
+ for (uint32_t i = 0; i < cmd_count; ++i) {
+ switch ( cmd->cmd() ) {
+ case LC_LOAD_DYLIB:
+ case LC_ID_DYLIB:
+ case LC_REEXPORT_DYLIB:
+ case LC_LOAD_WEAK_DYLIB:
+ case LC_LOAD_UPWARD_DYLIB:
+ dylib_cmd = (macho_dylib_command<P>*)cmd;
+ if ( options.printDylibVersions ) {
+ uint32_t compat_vers = dylib_cmd->compatibility_version();
+ uint32_t current_vers = dylib_cmd->current_version();
+ printf("\t%s", dylib_cmd->name());
+ if ( compat_vers != 0xFFFFFFFF ) {
+ printf("(compatibility version %u.%u.%u, current version %u.%u.%u)\n",
+ (compat_vers >> 16),
+ (compat_vers >> 8) & 0xff,
+ (compat_vers) & 0xff,
+ (current_vers >> 16),
+ (current_vers >> 8) & 0xff,
+ (current_vers) & 0xff);
+ }
+ else {
+ printf("\n");
+ }
+ }
+ else {
+ printf("\t%s\n", dylib_cmd->name());
+ }
+ break;
+ }
+ cmd = (const macho_load_command<P>*)(((uint8_t*)cmd)+cmd->cmdsize());
+ }
+ results.dependentTargetFound = true;
+}
+
+/*
+ * Print out a dylib from the shared cache, optionally including the UUID or unslid load address
+ */
+template <typename A>
+void print_list(const dyld_shared_cache_dylib_info* dylibInfo, const dyld_shared_cache_segment_info* segInfo,
+ const Options& options, Results& results)
+{
+ if ( strcmp(segInfo->name, "__TEXT") != 0 )
+ return;
+
+ if ( options.printVMAddrs )
+ printf("0x%08llX ", segInfo->address);
+ if ( options.printInodes )
+ printf("0x%08llX 0x%08llX ", dylibInfo->inode, dylibInfo->modTime);
+ if ( options.printUUIDs ) {
+ if ( dylibInfo->uuid != NULL ) {
+ const uint8_t* uuid = (uint8_t*)dylibInfo->uuid;;
+ printf("<%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X> ",
+ uuid[0], uuid[1], uuid[2], uuid[3],
+ uuid[4], uuid[5], uuid[6], uuid[7],
+ uuid[8], uuid[9], uuid[10], uuid[11],
+ uuid[12], uuid[13], uuid[14], uuid[15]);
+ }
+ else
+ printf("< no uuid in dylib > ");
+ }
+ if ( dylibInfo->isAlias )
+ printf("[alias] %s\n", dylibInfo->path);
+ else
+ printf("%s\n", dylibInfo->path);
+}
+
+
+template <typename A>
+void collect_size(const dyld_shared_cache_dylib_info* dylibInfo, const dyld_shared_cache_segment_info* segInfo,
+ const Options& options, Results& results)
+{
+ if ( strcmp(segInfo->name, "__TEXT") != 0 )
+ return;
+ if ( dylibInfo->isAlias )
+ return;
+
+ TextInfo info;
+ info.textSize = segInfo->fileSize;
+ info.path = dylibInfo->path;
+ results.textSegments.push_back(info);
+ size_t size = segInfo->fileSize;
+}
+
+
+
+
+static void add_linkedit(uint32_t pageStart, uint32_t pageEnd, const char* message, Results& results)
+{
+ for (uint32_t p = pageStart; p <= pageEnd; p += 4096) {
+ std::map<uint32_t, const char*>::iterator pos = results.pageToContent.find(p);
+ if ( pos == results.pageToContent.end() ) {
+ results.pageToContent[p] = strdup(message);
+ }
+ else {
+ const char* oldMessage = pos->second;
+ char* newMesssage;
+ asprintf(&newMesssage, "%s, %s", oldMessage, message);
+ results.pageToContent[p] = newMesssage;
+ ::free((void*)oldMessage);
+ }
+ }
+}
+
+
+/*
+ * get LINKEDIT info for dylib
+ */
+template <typename A>
+void process_linkedit(const dyld_shared_cache_dylib_info* dylibInfo, const dyld_shared_cache_segment_info* segInfo,
+ const Options& options, Results& results) {
+ typedef typename A::P P;
+ typedef typename A::P::E E;
+ // filter out symlinks
+ if ( dylibInfo->isAlias )
+ return;
+ const macho_header<P>* mh = (const macho_header<P>*)dylibInfo->machHeader;
+ uint32_t ncmds = mh->ncmds();
+ const macho_load_command<P>* const cmds = (macho_load_command<P>*)((long)mh + sizeof(macho_header<P>));
+ const macho_load_command<P>* cmd = cmds;
+ for (uint32_t i = 0; i < ncmds; i++) {
+ if ( cmd->cmd() == LC_DYLD_INFO_ONLY ) {
+ macho_dyld_info_command<P>* dyldInfo = (macho_dyld_info_command<P>*)cmd;
+ char message[1000];
+ const char* shortName = strrchr(dylibInfo->path, '/') + 1;
+ // add export trie info
+ if ( dyldInfo->export_size() != 0 ) {
+ //printf("export_off=0x%X\n", dyldInfo->export_off());
+ uint32_t exportPageOffsetStart = dyldInfo->export_off() & (-4096);
+ uint32_t exportPageOffsetEnd = (dyldInfo->export_off() + dyldInfo->export_size()) & (-4096);
+ sprintf(message, "exports from %s", shortName);
+ add_linkedit(exportPageOffsetStart, exportPageOffsetEnd, message, results);
+ }
+ // add binding info
+ if ( dyldInfo->bind_size() != 0 ) {
+ uint32_t bindPageOffsetStart = dyldInfo->bind_off() & (-4096);
+ uint32_t bindPageOffsetEnd = (dyldInfo->bind_off() + dyldInfo->bind_size()) & (-4096);
+ sprintf(message, "bindings from %s", shortName);
+ add_linkedit(bindPageOffsetStart, bindPageOffsetEnd, message, results);
+ }
+ // add lazy binding info
+ if ( dyldInfo->lazy_bind_size() != 0 ) {
+ uint32_t lazybindPageOffsetStart = dyldInfo->lazy_bind_off() & (-4096);
+ uint32_t lazybindPageOffsetEnd = (dyldInfo->lazy_bind_off() + dyldInfo->lazy_bind_size()) & (-4096);
+ sprintf(message, "lazy bindings from %s", shortName);
+ add_linkedit(lazybindPageOffsetStart, lazybindPageOffsetEnd, message, results);
+ }
+ // add weak binding info
+ if ( dyldInfo->weak_bind_size() != 0 ) {
+ uint32_t weakbindPageOffsetStart = dyldInfo->weak_bind_off() & (-4096);
+ uint32_t weakbindPageOffsetEnd = (dyldInfo->weak_bind_off() + dyldInfo->weak_bind_size()) & (-4096);
+ sprintf(message, "weak bindings from %s", shortName);
+ add_linkedit(weakbindPageOffsetStart, weakbindPageOffsetEnd, message, results);
+ }
+ }
+ cmd = (const macho_load_command<P>*)(((uint8_t*)cmd)+cmd->cmdsize());
+ }
+}
+
+
+/*
+ * Print out a .map file similar to what update_dyld_shared_cache created when the cache file was built
+ */
+template <typename A>
+void print_map(const dyld_shared_cache_dylib_info* dylibInfo, const dyld_shared_cache_segment_info* segInfo, const Options& options, Results& results) {
+ if ( !dylibInfo->isAlias )
+ printf("0x%08llX - 0x%08llX %s %s\n", segInfo->address, segInfo->address + segInfo->fileSize, segInfo->name, dylibInfo->path);
+}
+
+
+static void checkMode(Mode mode) {
+ if ( mode != modeNone ) {
+ fprintf(stderr, "Error: select one of: -list, -dependents, -info, -slide_info, -linkedit, -map, or -size\n");
+ usage();
+ exit(1);
+ }
+}
+
+int main (int argc, const char* argv[]) {
+
+ const char* sharedCachePath = default_shared_cache_path();
+
+ Options options;
+ options.mode = modeNone;
+ options.printUUIDs = false;
+ options.printVMAddrs = false;
+ options.printDylibVersions = false;
+ options.printInodes = false;
+ options.dependentsOfPath = NULL;
+
+ for (uint32_t i = 1; i < argc; i++) {
+ const char* opt = argv[i];
+ if (opt[0] == '-') {
+ if (strcmp(opt, "-list") == 0) {
+ checkMode(options.mode);
+ options.mode = modeList;
+ }
+ else if (strcmp(opt, "-dependents") == 0) {
+ checkMode(options.mode);
+ options.mode = modeDependencies;
+ options.dependentsOfPath = argv[++i];
+ if ( i >= argc ) {
+ fprintf(stderr, "Error: option -depdendents requires an argument\n");
+ usage();
+ exit(1);
+ }
+ }
+ else if (strcmp(opt, "-linkedit") == 0) {
+ checkMode(options.mode);
+ options.mode = modeLinkEdit;
+ }
+ else if (strcmp(opt, "-info") == 0) {
+ checkMode(options.mode);
+ options.mode = modeInfo;
+ }
+ else if (strcmp(opt, "-slide_info") == 0) {
+ checkMode(options.mode);
+ options.mode = modeSlideInfo;
+ }
+ else if (strcmp(opt, "-map") == 0) {
+ checkMode(options.mode);
+ options.mode = modeMap;
+ }
+ else if (strcmp(opt, "-size") == 0) {
+ checkMode(options.mode);
+ options.mode = modeSize;
+ }
+ else if (strcmp(opt, "-uuid") == 0) {
+ options.printUUIDs = true;
+ }
+ else if (strcmp(opt, "-inode") == 0) {
+ options.printInodes = true;
+ }
+ else if (strcmp(opt, "-versions") == 0) {
+ options.printDylibVersions = true;
+ }
+ else if (strcmp(opt, "-vmaddr") == 0) {
+ options.printVMAddrs = true;
+ }
+ else {
+ fprintf(stderr, "Error: unrecognized option %s\n", opt);
+ usage();
+ exit(1);
+ }
+ }
+ else {
+ sharedCachePath = opt;
+ }
+ }
+
+ if ( options.mode == modeNone ) {
+ fprintf(stderr, "Error: select one of -list, -dependents, -info, -linkedit, or -map\n");
+ usage();
+ exit(1);
+ }
+
+ if ( options.mode != modeSlideInfo ) {
+ if ( options.printUUIDs && (options.mode != modeList) )
+ fprintf(stderr, "Warning: -uuid option ignored outside of -list mode\n");
+
+ if ( options.printVMAddrs && (options.mode != modeList) )
+ fprintf(stderr, "Warning: -vmaddr option ignored outside of -list mode\n");
+
+ if ( options.printDylibVersions && (options.mode != modeDependencies) )
+ fprintf(stderr, "Warning: -versions option ignored outside of -dependents mode\n");
+
+ if ( (options.mode == modeDependencies) && (options.dependentsOfPath == NULL) ) {
+ fprintf(stderr, "Error: -dependents given, but no dylib path specified\n");
+ usage();
+ exit(1);
+ }
+ }
+
+ struct stat statbuf;
+ if ( ::stat(sharedCachePath, &statbuf) == -1 ) {
+ fprintf(stderr, "Error: stat() failed for dyld shared cache at %s, errno=%d\n", sharedCachePath, errno);
+ exit(1);
+ }
+
+ int cache_fd = ::open(sharedCachePath, O_RDONLY);
+ if ( cache_fd < 0 ) {
+ fprintf(stderr, "Error: open() failed for shared cache file at %s, errno=%d\n", sharedCachePath, errno);
+ exit(1);
+ }
+ options.mappedCache = ::mmap(NULL, statbuf.st_size, PROT_READ, MAP_PRIVATE, cache_fd, 0);
+ if (options.mappedCache == MAP_FAILED) {
+ fprintf(stderr, "Error: mmap() for shared cache at %s failed, errno=%d\n", sharedCachePath, errno);
+ exit(1);
+ }
+
+ if ( options.mode == modeSlideInfo ) {
+ const dyldCacheHeader<LittleEndian>* header = (dyldCacheHeader<LittleEndian>*)options.mappedCache;
+ if ( header->slideInfoOffset() == 0 ) {
+ fprintf(stderr, "Error: dyld shared cache does not contain slide info\n");
+ exit(1);
+ }
+ const dyldCacheFileMapping<LittleEndian>* mappings = (dyldCacheFileMapping<LittleEndian>*)((char*)options.mappedCache + header->mappingOffset());
+ const dyldCacheFileMapping<LittleEndian>* dataMapping = &mappings[1];
+ uint64_t dataStartAddress = dataMapping->address();
+ uint64_t dataSize = dataMapping->size();
+ const dyldCacheSlideInfo<LittleEndian>* slideInfoHeader = (dyldCacheSlideInfo<LittleEndian>*)((char*)options.mappedCache+header->slideInfoOffset());
+ printf("slide info version=%d\n", slideInfoHeader->version());
+ printf("toc_count=%d, data page count=%lld\n", slideInfoHeader->toc_count(), dataSize/4096);
+ const dyldCacheSlideInfoEntry* entries = (dyldCacheSlideInfoEntry*)((char*)slideInfoHeader + slideInfoHeader->entries_offset());
+ for(int i=0; i < slideInfoHeader->toc_count(); ++i) {
+ printf("0x%08llX: [% 5d,% 5d] ", dataStartAddress + i*4096, i, slideInfoHeader->toc(i));
+ const dyldCacheSlideInfoEntry* entry = &entries[slideInfoHeader->toc(i)];
+ for(int j=0; j < slideInfoHeader->entries_size(); ++j)
+ printf("%02X", entry->bits[j]);
+ printf("\n");
+ }
+ }
+ else if ( options.mode == modeInfo ) {
+ const dyldCacheHeader<LittleEndian>* header = (dyldCacheHeader<LittleEndian>*)options.mappedCache;
+ printf("uuid: ");
+ if ( header->mappingOffset() >= 0x68 ) {
+ const uint8_t* uuid = header->uuid();
+ printf("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X\n",
+ uuid[0], uuid[1], uuid[2], uuid[3],
+ uuid[4], uuid[5], uuid[6], uuid[7],
+ uuid[8], uuid[9], uuid[10], uuid[11],
+ uuid[12], uuid[13], uuid[14], uuid[15]);
+ }
+ else {
+ printf("n/a\n");
+ }
+ printf("image count: %u\n", header->imagesCount());
+ printf("mappings:\n");
+ const dyldCacheFileMapping<LittleEndian>* mappings = (dyldCacheFileMapping<LittleEndian>*)((char*)options.mappedCache + header->mappingOffset());
+ for (uint32_t i=0; i < header->mappingCount(); ++i) {
+ if ( mappings[i].init_prot() & VM_PROT_EXECUTE )
+ printf(" __TEXT %3lluMB, 0x%08llX -> 0x%08llX\n", mappings[i].size()/(1024*1024), mappings[i].address(), mappings[i].address() + mappings[i].size());
+ else if ( mappings[i]. init_prot() & VM_PROT_WRITE )
+ printf(" __DATA %3lluMB, 0x%08llX -> 0x%08llX\n", mappings[i].size()/(1024*1024), mappings[i].address(), mappings[i].address() + mappings[i].size());
+ else if ( mappings[i].init_prot() & VM_PROT_READ )
+ printf(" __LINKEDIT %3lluMB, 0x%08llX -> 0x%08llX\n", mappings[i].size()/(1024*1024), mappings[i].address(), mappings[i].address() + mappings[i].size());
+ }
+ if ( header->codeSignatureOffset() != 0 ) {
+ uint64_t size = statbuf.st_size - header->codeSignatureOffset();
+ uint64_t csAddr = mappings[header->mappingCount()-1].address() + mappings[header->mappingCount()-1].size();
+ printf(" code sign %3lluMB, 0x%08llX -> 0x%08llX\n", size/(1024*1024), csAddr, csAddr + size);
+ }
+ }
+ else {
+ segment_callback_t callback;
+ if ( strcmp((char*)options.mappedCache, "dyld_v1 i386") == 0 ) {
+ switch ( options.mode ) {
+ case modeList:
+ callback = print_list<x86>;
+ break;
+ case modeMap:
+ callback = print_map<x86>;
+ break;
+ case modeDependencies:
+ callback = print_dependencies<x86>;
+ break;
+ case modeLinkEdit:
+ callback = process_linkedit<x86>;
+ break;
+ case modeSize:
+ callback = collect_size<x86>;
+ break;
+ case modeNone:
+ case modeInfo:
+ case modeSlideInfo:
+ break;
+ }
+ }
+ else if ( (strcmp((char*)options.mappedCache, "dyld_v1 x86_64") == 0)
+ || (strcmp((char*)options.mappedCache, "dyld_v1 x86_64h") == 0) ) {
+ switch ( options.mode ) {
+ case modeList:
+ callback = print_list<x86_64>;
+ break;
+ case modeMap:
+ callback = print_map<x86_64>;
+ break;
+ case modeDependencies:
+ callback = print_dependencies<x86_64>;
+ break;
+ case modeLinkEdit:
+ callback = process_linkedit<x86_64>;
+ break;
+ case modeSize:
+ callback = collect_size<x86_64>;
+ break;
+ case modeNone:
+ case modeInfo:
+ case modeSlideInfo:
+ break;
+ }
+ }
+ else if ( (strncmp((char*)options.mappedCache, "dyld_v1 armv", 14) == 0)
+ || (strncmp((char*)options.mappedCache, "dyld_v1 armv", 13) == 0) ) {
+ switch ( options.mode ) {
+ case modeList:
+ callback = print_list<arm>;
+ break;
+ case modeMap:
+ callback = print_map<arm>;
+ break;
+ case modeDependencies:
+ callback = print_dependencies<arm>;
+ break;
+ case modeLinkEdit:
+ callback = process_linkedit<arm>;
+ break;
+ case modeSize:
+ callback = collect_size<arm>;
+ break;
+ case modeNone:
+ case modeInfo:
+ case modeSlideInfo:
+ break;
+ }
+ }
+ else if ( strcmp((char*)options.mappedCache, "dyld_v1 arm64") == 0 ) {
+ switch ( options.mode ) {
+ case modeList:
+ callback = print_list<arm64>;
+ break;
+ case modeMap:
+ callback = print_map<arm64>;
+ break;
+ case modeDependencies:
+ callback = print_dependencies<arm64>;
+ break;
+ case modeLinkEdit:
+ callback = process_linkedit<arm64>;
+ break;
+ case modeSize:
+ callback = collect_size<arm64>;
+ break;
+ case modeNone:
+ case modeInfo:
+ case modeSlideInfo:
+ break;
+ }
+ }
+ else {
+ fprintf(stderr, "Error: unrecognized dyld shared cache magic.\n");
+ exit(1);
+ }
+
+ __block Results results;
+ results.dependentTargetFound = false;
+ int iterateResult = dyld_shared_cache_iterate(options.mappedCache, (uint32_t)statbuf.st_size,
+ ^(const dyld_shared_cache_dylib_info* dylibInfo, const dyld_shared_cache_segment_info* segInfo ) {
+ (callback)(dylibInfo, segInfo, options, results);
+ });
+ if ( iterateResult != 0 ) {
+ fprintf(stderr, "Error: malformed shared cache file\n");
+ exit(1);
+ }
+
+ if ( options.mode == modeLinkEdit ) {
+ // dump -linkedit information
+ for (std::map<uint32_t, const char*>::iterator it = results.pageToContent.begin(); it != results.pageToContent.end(); ++it) {
+ printf("0x%08X %s\n", it->first, it->second);
+ }
+ }
+ else if ( options.mode == modeSize ) {
+ std::sort(results.textSegments.begin(), results.textSegments.end(), TextInfoSorter());
+ for (std::vector<TextInfo>::iterator it = results.textSegments.begin(); it != results.textSegments.end(); ++it) {
+ printf(" 0x%08llX %s\n", it->textSize, it->path);
+ }
+ }
+
+ if ( (options.mode == modeDependencies) && options.dependentsOfPath && !results.dependentTargetFound) {
+ fprintf(stderr, "Error: could not find '%s' in the shared cache at\n %s\n", options.dependentsOfPath, sharedCachePath);
+ exit(1);
+ }
+ }
+ return 0;
+}