X-Git-Url: https://git.saurik.com/apple/dyld.git/blobdiff_plain/6cae9b637796eb548e85897ce8a2a058bb5799cf..refs/heads/master:/src/ImageLoaderMegaDylib.cpp diff --git a/src/ImageLoaderMegaDylib.cpp b/src/ImageLoaderMegaDylib.cpp index 54929e1..5978ac3 100644 --- a/src/ImageLoaderMegaDylib.cpp +++ b/src/ImageLoaderMegaDylib.cpp @@ -39,14 +39,14 @@ #include #include #include +#include #include #include "ImageLoaderMegaDylib.h" #include "ImageLoaderMachO.h" -#include "mach-o/dyld_images.h" #include "dyldLibSystemInterface.h" #include "Tracing.h" -#include "dyld.h" +#include "dyld2.h" // from dyld_gdb.cpp extern void addImagesToAllImages(uint32_t infoCount, const dyld_image_info info[]); @@ -196,7 +196,7 @@ bool ImageLoaderMegaDylib::hasDylib(const char* path, unsigned* index) const { const uint8_t* imageNode = ImageLoader::trieWalk(_dylibsTrieStart, _dylibsTrieEnd, path); if ( imageNode == NULL ) { - #if __MAC_OS_X_VERSION_MIN_REQUIRED + #if TARGET_OS_OSX // not all symlinks are recorded as aliases in accelerator tables if ( (strncmp(path, "/usr/lib/", 9) == 0) || (strncmp(path, "/System/Library/", 16) == 0) ) { char resolvedPath[PATH_MAX]; @@ -268,11 +268,21 @@ unsigned ImageLoaderMegaDylib::findImageIndex(const LinkContext& context, const if ( hasDylib(path, &index) ) return index; - // Somehow we found the dylib in the cache, but it is not this literal string, try simple expansions of @rpath - if ( strncmp(path, "@rpath/", 7) == 0 ) { + if ( strncmp(path, "@rpath/libswift", 15) == 0 ) { + // a stable swift app built to run on pre-iOS-12.2 will use @rpath to reference swift dylibs in OS + const char* trailingPath = &path[7]; + char possiblePath[strlen(trailingPath)+16]; + strcpy(possiblePath, "/usr/lib/swift/"); + strcat(possiblePath, trailingPath); + if ( hasDylib(possiblePath, &index) ) + return index; + } + else if ( strncmp(path, "@rpath/", 7) == 0 ) { + // Somehow we found the dylib in the cache, but it is not this literal string, try simple expansions of @rpath std::vector rpathsFromMainExecutable; context.mainExecutable->getRPaths(context, rpathsFromMainExecutable); rpathsFromMainExecutable.push_back("/System/Library/Frameworks/"); + rpathsFromMainExecutable.push_back("/usr/lib/swift/"); const char* trailingPath = &path[7]; for (const char* anRPath : rpathsFromMainExecutable) { if ( anRPath[0] != '/' ) @@ -367,7 +377,7 @@ bool ImageLoaderMegaDylib::incrementCoalIterator(CoalIterator& it) segOffset = read_uleb128(p, end); mh = (mach_header*)getIndexedMachHeader((unsigned)it.imageIndex); if ( uintptr_t segPrefAddress = ImageLoaderMachO::segPreferredAddress(mh, segIndex) ) - it.address = segPrefAddress + segOffset + _slide; + it.address = segPrefAddress + (uintptr_t)segOffset + _slide; else dyld::throwf("BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB has segment %d which is too large", segIndex); break; @@ -452,7 +462,7 @@ void ImageLoaderMegaDylib::updateUsesCoalIterator(CoalIterator& it, uintptr_t va segOffset = read_uleb128(p, end); mh = (mach_header*)getIndexedMachHeader((unsigned)it.imageIndex); if ( uintptr_t segPrefAddress = ImageLoaderMachO::segPreferredAddress(mh, segIndex) ) - address = segPrefAddress + segOffset + _slide; + address = segPrefAddress + (uintptr_t)segOffset + _slide; else dyld::throwf("BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB has segment %d which is too large", segIndex); break; @@ -508,7 +518,7 @@ void ImageLoaderMegaDylib::appendImagesNeedingCoalescing(ImageLoader* images[], } -bool ImageLoaderMegaDylib::weakSymbolsBound(unsigned index) +bool ImageLoaderMegaDylib::weakSymbolsBound(unsigned index) const { return ( _stateFlags[index] >= kStateFlagWeakBound ); } @@ -563,7 +573,7 @@ void ImageLoaderMegaDylib::recursiveLoadLibraries(const LinkContext& context, bo recursiveMarkLoaded(context, index); } -unsigned int ImageLoaderMegaDylib::recursiveUpdateDepth(unsigned int maxDepth) +unsigned int ImageLoaderMegaDylib::updateDepth(unsigned int maxDepth) { setDepth(maxDepth); return maxDepth; @@ -721,7 +731,7 @@ void ImageLoaderMegaDylib::processExportNode(const LinkContext& context, const c default: dyld::throwf("unsupported exported symbol kind. flags=%lu at node=%p", flags, exportNode); } - dyld::throwf("unsupported exported symbol node=%p", exportNode); + //dyld::throwf("unsupported exported symbol node=%p", exportNode); } bool ImageLoaderMegaDylib::findInChainedTries(const LinkContext& context, const char* symbolName, unsigned definedImageIndex, @@ -785,14 +795,9 @@ bool ImageLoaderMegaDylib::flatFindSymbol(const char* name, bool onlyInCoalesced uint16_t imageIndex = _bottomUpArray[i]; if ( _stateFlags[imageIndex] == kStateUnused ) continue; -#if USES_CHAINED_BINDS const macho_header* mh = getIndexedMachHeader(imageIndex); if ( onlyInCoalesced && (mh->flags & MH_WEAK_DEFINES) == 0 ) continue; -#else - if ( onlyInCoalesced && (_imageExtras[imageIndex].weakBindingsSize == 0) ) - continue; -#endif const uint8_t* exportNode; const uint8_t* exportTrieEnd; if ( exportTrieHasNode(name, imageIndex, &exportNode, &exportTrieEnd) ) { @@ -928,22 +933,20 @@ void ImageLoaderMegaDylib::recursiveInitialization(const LinkContext& context, m void ImageLoaderMegaDylib::recursiveInitialization(const LinkContext& context, mach_port_t thisThread, const char* pathToInitialize, InitializerTimingList& timingInfo, UninitedUpwards&) { - unsigned imageIndex; - if ( hasDylib(pathToInitialize, &imageIndex) ) { - UpwardIndexes upsBuffer[256]; - UpwardIndexes& ups = upsBuffer[0]; - ups.count = 0; - this->recursiveInitialization(context, thisThread, imageIndex, timingInfo, ups); - for (int i=0; i < ups.count; ++i) { - UpwardIndexes upsBuffer2[256]; - UpwardIndexes& ignoreUp = upsBuffer2[0]; - ignoreUp.count = 0; - this->recursiveInitialization(context, thisThread, ups.images[i], timingInfo, ignoreUp); - } + UpwardIndexes upsBuffer[256]; + UpwardIndexes& ups = upsBuffer[0]; + ups.count = 0; + unsigned imageIndex = findImageIndex(context, pathToInitialize); + this->recursiveInitialization(context, thisThread, imageIndex, timingInfo, ups); + for (int i=0; i < ups.count; ++i) { + UpwardIndexes upsBuffer2[256]; + UpwardIndexes& ignoreUp = upsBuffer2[0]; + ignoreUp.count = 0; + this->recursiveInitialization(context, thisThread, ups.images[i], timingInfo, ignoreUp); } } -void ImageLoaderMegaDylib::recursiveBind(const LinkContext& context, bool forceLazysBound, bool neverUnload) +void ImageLoaderMegaDylib::recursiveBind(const LinkContext& context, bool forceLazysBound, bool neverUnload, const ImageLoader* parent) { markAllbound(context); }