Loading...
--- dyld/dyld-421.1/launch-cache/dyld_shared_cache_util.cpp
+++ dyld/dyld-353.2.3/launch-cache/dyld_shared_cache_util.cpp
@@ -26,7 +26,6 @@
#include <unistd.h>
#include <sys/stat.h>
#include <string.h>
-#include <dlfcn.h>
#include <fcntl.h>
#include <stdlib.h>
#include <errno.h>
@@ -34,19 +33,16 @@
#include <sys/syslimits.h>
#include <mach-o/arch.h>
#include <mach-o/loader.h>
-#include <mach-o/dyld.h>
#include <mach/mach.h>
#include <map>
#include <vector>
#include "dsc_iterator.h"
-#include "dsc_extractor.h"
#include "dyld_cache_format.h"
#include "Architectures.hpp"
#include "MachOFileAbstraction.hpp"
#include "CacheFileAbstraction.hpp"
-#include "Trie.hpp"
enum Mode {
modeNone,
@@ -54,20 +50,15 @@
modeMap,
modeDependencies,
modeSlideInfo,
- modeAcceleratorInfo,
- modeTextInfo,
modeLinkEdit,
- modeLocalSymbols,
modeInfo,
- modeSize,
- modeExtract
+ modeSize
};
struct Options {
Mode mode;
const char* dependentsOfPath;
const void* mappedCache;
- const char* extractionDir;
bool printUUIDs;
bool printVMAddrs;
bool printDylibVersions;
@@ -95,7 +86,7 @@
void usage() {
- fprintf(stderr, "Usage: dyld_shared_cache_util -list [ -uuid ] [-vmaddr] | -dependents <dylib-path> [ -versions ] | -linkedit | -map | -slide_info | -info | -extract <dylib-dir> [ shared-cache-file ] \n");
+ 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__
@@ -340,7 +331,7 @@
static void checkMode(Mode mode) {
if ( mode != modeNone ) {
- fprintf(stderr, "Error: select one of: -list, -dependents, -info, -slide_info, -linkedit, -map, -extract, or -size\n");
+ fprintf(stderr, "Error: select one of: -list, -dependents, -info, -slide_info, -linkedit, -map, or -size\n");
usage();
exit(1);
}
@@ -357,8 +348,7 @@
options.printDylibVersions = false;
options.printInodes = false;
options.dependentsOfPath = NULL;
- options.extractionDir = NULL;
-
+
for (uint32_t i = 1; i < argc; i++) {
const char* opt = argv[i];
if (opt[0] == '-') {
@@ -387,19 +377,7 @@
else if (strcmp(opt, "-slide_info") == 0) {
checkMode(options.mode);
options.mode = modeSlideInfo;
- }
- else if (strcmp(opt, "-accelerator_info") == 0) {
- checkMode(options.mode);
- options.mode = modeAcceleratorInfo;
- }
- else if (strcmp(opt, "-text_info") == 0) {
- checkMode(options.mode);
- options.mode = modeTextInfo;
- }
- else if (strcmp(opt, "-local_symbols") == 0) {
- checkMode(options.mode);
- options.mode = modeLocalSymbols;
- }
+ }
else if (strcmp(opt, "-map") == 0) {
checkMode(options.mode);
options.mode = modeMap;
@@ -407,17 +385,7 @@
else if (strcmp(opt, "-size") == 0) {
checkMode(options.mode);
options.mode = modeSize;
- }
- else if (strcmp(opt, "-extract") == 0) {
- checkMode(options.mode);
- options.mode = modeExtract;
- options.extractionDir = argv[++i];
- if ( i >= argc ) {
- fprintf(stderr, "Error: option -extract requires a directory argument\n");
- usage();
- exit(1);
- }
- }
+ }
else if (strcmp(opt, "-uuid") == 0) {
options.printUUIDs = true;
}
@@ -493,46 +461,14 @@
uint64_t dataSize = dataMapping->size();
const dyldCacheSlideInfo<LittleEndian>* slideInfoHeader = (dyldCacheSlideInfo<LittleEndian>*)((char*)options.mappedCache+header->slideInfoOffset());
printf("slide info version=%d\n", slideInfoHeader->version());
- if ( slideInfoHeader->version() == 1 ) {
- 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 ( slideInfoHeader->version() == 2 ) {
- const dyldCacheSlideInfo2<LittleEndian>* slideInfo = (dyldCacheSlideInfo2<LittleEndian>*)(slideInfoHeader);
- printf("page_size=%d\n", slideInfo->page_size());
- printf("delta_mask=0x%016llX\n", slideInfo->delta_mask());
- printf("value_add=0x%016llX\n", slideInfo->value_add());
- printf("page_starts_count=%d, page_extras_count=%d\n", slideInfo->page_starts_count(), slideInfo->page_extras_count());
- const uint16_t* starts = (uint16_t* )((char*)slideInfo + slideInfo->page_starts_offset());
- const uint16_t* extras = (uint16_t* )((char*)slideInfo + slideInfo->page_extras_offset());
- for (int i=0; i < slideInfo->page_starts_count(); ++i) {
- const uint16_t start = starts[i];
- if ( start == DYLD_CACHE_SLIDE_PAGE_ATTR_NO_REBASE ) {
- printf("page[% 5d]: no rebasing\n", i);
- }
- else if ( start & DYLD_CACHE_SLIDE_PAGE_ATTR_EXTRA ) {
- printf("page[% 5d]: ", i);
- int j=(start & 0x3FFF);
- bool done = false;
- do {
- uint16_t aStart = extras[j];
- printf("start=0x%04X ", aStart & 0x3FFF);
- done = (extras[j] & DYLD_CACHE_SLIDE_PAGE_ATTR_END);
- ++j;
- } while ( !done );
- printf("\n");
- }
- else {
- printf("page[% 5d]: start=0x%04X\n", i, starts[i]);
- }
- }
+ 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 ) {
@@ -550,210 +486,21 @@
printf("n/a\n");
}
printf("image count: %u\n", header->imagesCount());
- if ( (header->mappingOffset() >= 0x78) && (header->branchPoolsOffset() != 0) ) {
- printf("branch pool count: %u\n", header->branchPoolsCount());
- }
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, file offset: 0x%08llX -> 0x%08llX, address: 0x%08llX -> 0x%08llX\n",
- mappings[i].size()/(1024*1024), mappings[i].file_offset(), mappings[i].file_offset() + mappings[i].size(),
- mappings[i].address(), mappings[i].address() + mappings[i].size());
+ 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, file offset: 0x%08llX -> 0x%08llX, address: 0x%08llX -> 0x%08llX\n",
- mappings[i].size()/(1024*1024), mappings[i].file_offset(), mappings[i].file_offset() + mappings[i].size(),
- mappings[i].address(), mappings[i].address() + mappings[i].size());
+ 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, file offset: 0x%08llX -> 0x%08llX, address: 0x%08llX -> 0x%08llX\n",
- mappings[i].size()/(1024*1024), mappings[i].file_offset(), mappings[i].file_offset() + mappings[i].size(),
- mappings[i].address(), mappings[i].address() + mappings[i].size());
+ 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 size = statbuf.st_size - header->codeSignatureOffset();
uint64_t csAddr = mappings[header->mappingCount()-1].address() + mappings[header->mappingCount()-1].size();
- if ( size != 0 )
- printf(" code sign %3lluMB, file offset: 0x%08llX -> 0x%08llX, address: 0x%08llX -> 0x%08llX\n",
- size/(1024*1024), header->codeSignatureOffset(), header->codeSignatureOffset() + size, csAddr, csAddr + size);
- }
- printf("slide info: %4lluKB, file offset: 0x%08llX -> 0x%08llX\n",
- header->slideInfoSize()/1024, header->slideInfoOffset(), header->slideInfoOffset() + header->slideInfoSize());
- if ( header->localSymbolsOffset() != 0 )
- printf("local symbols: %3lluMB, file offset: 0x%08llX -> 0x%08llX\n",
- header->localSymbolsSize()/(1024*1024), header->localSymbolsOffset(), header->localSymbolsOffset() + header->localSymbolsSize());
- if ( (header->mappingOffset() >= 0x78) && (header->accelerateInfoSize() != 0) )
- printf("accelerate tab: %3lluKB, address: 0x%08llX -> 0x%08llX\n",
- header->accelerateInfoSize()/1024, header->accelerateInfoAddr(), header->accelerateInfoAddr() + header->accelerateInfoSize());
- }
- else if ( options.mode == modeAcceleratorInfo ) {
- const dyldCacheHeader<LittleEndian>* header = (dyldCacheHeader<LittleEndian>*)options.mappedCache;
- if ( (header->mappingOffset() < sizeof(dyldCacheHeader<LittleEndian>)) || (header->accelerateInfoSize() == 0) ) {
- printf("no accelerator info\n");
- }
- else {
- const dyldCacheFileMapping<LittleEndian>* mappings = (dyldCacheFileMapping<LittleEndian>*)((char*)options.mappedCache + header->mappingOffset());
- uint64_t aiAddr = header->accelerateInfoAddr();
- dyldCacheAcceleratorInfo<LittleEndian>* accelInfo = NULL;
- for (uint32_t i=0; i < header->mappingCount(); ++i) {
- if ( (mappings[i].address() <= aiAddr) && (aiAddr < mappings[i].address()+mappings[i].size()) ) {
- uint64_t offset = aiAddr - mappings[i].address() + mappings[i].file_offset();
- accelInfo = (dyldCacheAcceleratorInfo<LittleEndian>*)((uint8_t*)options.mappedCache + offset);
- }
- }
- if ( accelInfo == NULL ) {
- printf("accelerator info not in any mapped range\n");
- }
- else {
- const dyldCacheImageInfo<LittleEndian>* images = (dyldCacheImageInfo<LittleEndian>*)((char*)options.mappedCache + header->imagesOffset());
- const dyldCacheImageInfoExtra<LittleEndian>* imagesExtra = (dyldCacheImageInfoExtra<LittleEndian>*)((char*)accelInfo + accelInfo->imagesExtrasOffset());
- const uint16_t* dependencyArray = (uint16_t*)((char*)accelInfo + accelInfo->depListOffset());
- const uint16_t* reExportArray = (uint16_t*)((char*)accelInfo + accelInfo->reExportListOffset());
- printf("extra image info (count=%u):\n", accelInfo->imageExtrasCount());
- for (uint32_t i=0; i < accelInfo->imageExtrasCount(); ++i) {
- printf(" image[%3u] %s:\n", i, (char*)options.mappedCache +images[i].pathFileOffset());
- printf(" exports trie: addr=0x%llX, size=0x%08X\n", imagesExtra[i].exportsTrieAddr(), imagesExtra[i].exportsTrieSize());
- if ( imagesExtra[i].weakBindingsSize() )
- printf(" weak bind info: addr=0x%llX, size=0x%08X\n", imagesExtra[i].weakBindingsAddr(), imagesExtra[i].weakBindingsSize());
- printf(" dependents: ");
- for (uint32_t d=imagesExtra[i].dependentsStartArrayIndex(); dependencyArray[d] != 0xFFFF; ++d) {
- uint16_t depIndex = dependencyArray[d];
- if ( depIndex & 0x8000 )
- printf(" up(%d) ", depIndex & 0x7FFF);
- else
- printf(" %d ", depIndex);
- }
- printf("\n");
- printf(" re-exports: ");
- for (uint32_t r=imagesExtra[i].reExportsStartArrayIndex(); reExportArray[r] != 0xFFFF; ++r)
- printf(" %d ", reExportArray[r]);
- printf("\n");
- }
- printf("libdyld.dylib:\n");
- printf(" __dyld section address: 0x%llX\n", accelInfo->dyldSectionAddr());
- printf("initializers (count=%u):\n", accelInfo->initializersCount());
- const dyldCacheAcceleratorInitializer<LittleEndian>* initializers = (dyldCacheAcceleratorInitializer<LittleEndian>*)((char*)accelInfo + accelInfo->initializersOffset());
- for (uint32_t i=0; i < accelInfo->initializersCount(); ++i) {
- printf(" image[%3u] 0x%llX\n", initializers[i].imageIndex(), mappings[0].address() + initializers[i].functionOffset());
- }
- printf("DOF sections (count=%u):\n", accelInfo->dofSectionsCount());
- const dyldCacheAcceleratorDOFEntry<LittleEndian>* dofs = (dyldCacheAcceleratorDOFEntry<LittleEndian>*)((char*)accelInfo + accelInfo->dofSectionsOffset());
- for (uint32_t i=0; i < accelInfo->dofSectionsCount(); ++i) {
- printf(" image[%3u] 0x%llX -> 0x%llX\n", dofs[i].imageIndex(), dofs[i].sectionAddress(), dofs[i].sectionAddress()+dofs[i].sectionSize());
- }
- printf("bottom up order (count=%u):\n", accelInfo->imageExtrasCount());
- const uint16_t* bottomUpArray = (uint16_t*)((char*)accelInfo + accelInfo->bottomUpListOffset());
- for (uint32_t i=0; i < accelInfo->imageExtrasCount(); ++i) {
- unsigned imageIndex = bottomUpArray[i];
- if ( imageIndex < accelInfo->imageExtrasCount() )
- printf(" image[%3u] %s\n", imageIndex, (char*)options.mappedCache + images[imageIndex].pathFileOffset());
- else
- printf(" image[%3u] BAD INDEX\n", imageIndex);
- }
- printf("range table (count=%u):\n", accelInfo->rangeTableCount());
- const dyldCacheAcceleratorRangeEntry<LittleEndian>* rangeTable = (dyldCacheAcceleratorRangeEntry<LittleEndian>*)((char*)accelInfo + accelInfo->rangeTableOffset());
- for (uint32_t i=0; i < accelInfo->rangeTableCount(); ++i) {
- const dyldCacheAcceleratorRangeEntry<LittleEndian>& entry = rangeTable[i];
- printf(" 0x%llX -> 0x%llX %s\n", entry.startAddress(), entry.startAddress() + entry.size(), (char*)options.mappedCache + images[entry.imageIndex()].pathFileOffset());
- }
- printf("dylib trie (size=%u):\n", accelInfo->dylibTrieSize());
- const uint8_t* dylibTrieStart = (uint8_t*)accelInfo + accelInfo->dylibTrieOffset();
- const uint8_t* dylibTrieEnd = dylibTrieStart + accelInfo->dylibTrieSize();
- std::vector<DylibIndexTrie::Entry> dylibEntries;
- if ( !Trie<DylibIndex>::parseTrie(dylibTrieStart, dylibTrieEnd, dylibEntries) )
- printf(" malformed dylibs trie\n");
- for (const DylibIndexTrie::Entry& x : dylibEntries) {
- printf(" image[%3u] %s\n", x.info.index, x.name.c_str());
- }
- }
- }
- }
- else if ( options.mode == modeTextInfo ) {
- const dyldCacheHeader<LittleEndian>* header = (dyldCacheHeader<LittleEndian>*)options.mappedCache;
- if ( (header->mappingOffset() < sizeof(dyldCacheHeader<LittleEndian>)) || (header->imagesTextCount() == 0) ) {
- printf("no text info\n");
- }
- else {
- const dyldCacheImageTextInfo<LittleEndian>* imagesText = (dyldCacheImageTextInfo<LittleEndian>*)((char*)options.mappedCache + header->imagesTextOffset());
- const dyldCacheImageTextInfo<LittleEndian>* imagesTextEnd = &imagesText[header->imagesTextCount()];
- printf("dylib text infos (count=%llu):\n", header->imagesTextCount());
- for (const dyldCacheImageTextInfo<LittleEndian>* p=imagesText; p < imagesTextEnd; ++p) {
- printf(" 0x%09llX -> 0x%09llX <", p->loadAddress(), p->loadAddress() + p->textSegmentSize());
- for (int i=0; i<16; ++i) {
- switch (i) {
- case 4:
- case 6:
- case 8:
- case 10:
- printf("-");
- break;
- }
- printf("%02X", p->uuid()[i]);
- }
- printf("> %s\n", (char*)options.mappedCache + p->pathOffset());
- }
- }
- }
- else if ( options.mode == modeLocalSymbols ) {
- const dyldCacheHeader<LittleEndian>* header = (dyldCacheHeader<LittleEndian>*)options.mappedCache;
- if ( header->localSymbolsOffset() == 0 ) {
- fprintf(stderr, "Error: dyld shared cache does not contain local symbols info\n");
- exit(1);
- }
- const bool is64 = (strstr((char*)options.mappedCache, "64") != NULL);
- const dyldCacheImageInfo<LittleEndian>* imageInfos = (dyldCacheImageInfo<LittleEndian>*)((char*)options.mappedCache + header->imagesOffset());
- const dyldCacheLocalSymbolsInfo<LittleEndian>* localsInfo = (dyldCacheLocalSymbolsInfo<LittleEndian>*)((char*)options.mappedCache + header->localSymbolsOffset());
- const uint32_t nlistFileOffset = (uint32_t)(header->localSymbolsOffset() + localsInfo->nlistOffset());
- const uint32_t nlistCount = localsInfo->nlistCount();
- const uint32_t nlistByteSize = is64 ? nlistCount*16 : nlistCount*12;
- const uint32_t stringsFileOffset = (uint32_t)(header->localSymbolsOffset() + localsInfo->stringsOffset());
- const uint32_t stringsSize = localsInfo->stringsSize();
- const uint32_t entriesCount = localsInfo->entriesCount();
- const dyldCacheLocalSymbolEntry<LittleEndian>* entries = (dyldCacheLocalSymbolEntry<LittleEndian>*)((char*)localsInfo + localsInfo->entriesOffset());
- printf("local symbols nlist array: %3uMB, file offset: 0x%08X -> 0x%08X\n", nlistByteSize/(1024*1024), nlistFileOffset, nlistFileOffset+nlistByteSize);
- printf("local symbols string pool: %3uMB, file offset: 0x%08X -> 0x%08X\n", stringsSize/(1024*1024), stringsFileOffset, stringsFileOffset+stringsSize);
- printf("local symbols by dylib (count=%d):\n", entriesCount);
- const char* stringPool = (char*)options.mappedCache + stringsFileOffset;
- for (int i=0; i < entriesCount; ++i) {
- const char* imageName = (char*)options.mappedCache + imageInfos[i].pathFileOffset();
- printf(" nlistStartIndex=%5d, nlistCount=%5d, image=%s\n", entries[i].nlistStartIndex(), entries[i].nlistCount(), imageName);
- #if 0
- if ( is64 ) {
- const nlist_64* symTab = (nlist_64*)((char*)options.mappedCache + nlistFileOffset);
- for (int e=0; e < entries[i].nlistCount(); ++e) {
- const nlist_64* entry = &symTab[entries[i].nlistStartIndex()+e];
- printf(" nlist[%d].str=%d, %s\n", e, entry->n_un.n_strx, &stringPool[entry->n_un.n_strx]);
- printf(" nlist[%d].value=0x%0llX\n", e, entry->n_value);
- }
- }
- #endif
- }
- }
- else if ( options.mode == modeExtract ) {
- char pathBuffer[PATH_MAX];
- uint32_t bufferSize = PATH_MAX;
- if ( _NSGetExecutablePath(pathBuffer, &bufferSize) != 0 ) {
- fprintf(stderr, "Error: could not get path of program\n");
- return 1;
- }
- char* last = strrchr(pathBuffer, '/');
- strcpy(last+1, "../../lib/dsc_extractor.bundle");
- void* handle = dlopen(pathBuffer, RTLD_LAZY);
- if ( handle == NULL ) {
- fprintf(stderr, "Error: dsc_extractor.bundle could not be loaded at %s\n", pathBuffer);
- return 1;
- }
-
- typedef int (*extractor_proc)(const char* shared_cache_file_path, const char* extraction_root_path,
- void (^progress)(unsigned current, unsigned total));
-
- extractor_proc proc = (extractor_proc)dlsym(handle, "dyld_shared_cache_extract_dylibs_progress");
- if ( proc == NULL ) {
- fprintf(stderr, "Error: dsc_extractor.bundle did not have dyld_shared_cache_extract_dylibs_progress symbol\n");
- return 1;
- }
-
- int result = (*proc)(sharedCachePath, options.extractionDir, ^(unsigned c, unsigned total) { } );
- return result;
+ printf(" code sign %3lluMB, 0x%08llX -> 0x%08llX\n", size/(1024*1024), csAddr, csAddr + size);
+ }
}
else {
segment_callback_t callback;
@@ -777,10 +524,6 @@
case modeNone:
case modeInfo:
case modeSlideInfo:
- case modeAcceleratorInfo:
- case modeTextInfo:
- case modeLocalSymbols:
- case modeExtract:
break;
}
}
@@ -805,10 +548,6 @@
case modeNone:
case modeInfo:
case modeSlideInfo:
- case modeAcceleratorInfo:
- case modeTextInfo:
- case modeLocalSymbols:
- case modeExtract:
break;
}
}
@@ -833,10 +572,6 @@
case modeNone:
case modeInfo:
case modeSlideInfo:
- case modeAcceleratorInfo:
- case modeTextInfo:
- case modeLocalSymbols:
- case modeExtract:
break;
}
}
@@ -860,10 +595,6 @@
case modeNone:
case modeInfo:
case modeSlideInfo:
- case modeAcceleratorInfo:
- case modeTextInfo:
- case modeLocalSymbols:
- case modeExtract:
break;
}
}
@@ -895,7 +626,7 @@
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);