/* -*- mode: C++; c-basic-offset: 4; tab-width: 4 -*-
*
- * Copyright (c) 2004-2005 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2004-2009 Apple Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
class ImageLoaderMachO : public ImageLoader {
public:
static ImageLoader* instantiateMainExecutable(const macho_header* mh, uintptr_t slide, const char* path, const LinkContext& context);
- static ImageLoader* instantiateFromFile(const char* path, int fd, const uint8_t firstPage[4096], uint64_t offsetInFat,
+ static ImageLoader* instantiateFromFile(const char* path, int fd, const uint8_t firstPages[], size_t firstPagesSize, uint64_t offsetInFat,
uint64_t lenInFat, const struct stat& info, const LinkContext& context);
- static ImageLoader* instantiateFromCache(const macho_header* mh, const char* path, const struct stat& info, const LinkContext& context);
+ static ImageLoader* instantiateFromCache(const macho_header* mh, const char* path, long slide, const struct stat& info, const LinkContext& context);
static ImageLoader* instantiateFromMemory(const char* moduleName, const macho_header* mh, uint64_t len, const LinkContext& context);
+ bool inSharedCache() const { return fInSharedCache; }
+ void disableCoverageCheck() { fCoveredCodeLength = UINT64_MAX; }
+
const char* getInstallPath() const;
virtual void* getMain() const;
+ virtual void* getThreadPC() const;
virtual const struct mach_header* machHeader() const;
virtual uintptr_t getSlide() const;
virtual const void* getEnd() const;
virtual bool hasCoalescedExports() const;
- virtual const Symbol* findExportedSymbol(const char* name, bool searchReExports, const ImageLoader** foundIn) const;
- virtual uintptr_t getExportedSymbolAddress(const Symbol* sym, const LinkContext& context, const ImageLoader* requestor) const;
+ virtual const Symbol* findExportedSymbol(const char* name, bool searchReExports, const char* thisPath, const ImageLoader** foundIn) const;
+ virtual uintptr_t getExportedSymbolAddress(const Symbol* sym, const LinkContext& context,
+ const ImageLoader* requestor, bool runResolver, const char*) const;
virtual DefinitionFlags getExportedSymbolInfo(const Symbol* sym) const;
virtual const char* getExportedSymbolName(const Symbol* sym) const;
virtual uint32_t getExportedSymbolCount() const;
virtual bool forceFlat() const;
virtual bool participatesInCoalescing() const;
virtual const char* findClosestSymbol(const void* addr, const void** closestAddr) const = 0;
- virtual void initializeCoalIterator(CoalIterator&, unsigned int loadOrder) = 0;
+ virtual void initializeCoalIterator(CoalIterator&, unsigned int loadOrder, unsigned) = 0;
virtual bool incrementCoalIterator(CoalIterator&) = 0;
virtual uintptr_t getAddressCoalIterator(CoalIterator&, const LinkContext& contex) = 0;
- virtual void updateUsesCoalIterator(CoalIterator&, uintptr_t newAddr, ImageLoader* target, const LinkContext& context) = 0;
+ virtual void updateUsesCoalIterator(CoalIterator&, uintptr_t newAddr, ImageLoader* target, unsigned targetIndex, const LinkContext& context) = 0;
virtual uintptr_t doBindLazySymbol(uintptr_t* lazyPointer, const LinkContext& context) = 0;
- virtual uintptr_t doBindFastLazySymbol(uint32_t lazyBindingInfoOffset, const LinkContext& context) = 0;
+ virtual uintptr_t doBindFastLazySymbol(uint32_t lazyBindingInfoOffset, const LinkContext& context, void (*lock)(), void (*unlock)()) = 0;
virtual void doTermination(const LinkContext& context);
virtual bool needsInitialization();
virtual bool getSectionContent(const char* segmentName, const char* sectionName, void** start, size_t* length);
virtual uintptr_t segActualLoadAddress(unsigned int) const;
virtual uintptr_t segPreferredLoadAddress(unsigned int) const;
virtual uintptr_t segActualEndAddress(unsigned int) const;
-
-
- static void printStatistics(unsigned int imageCount);
-
+ virtual void registerInterposing();
+ virtual uint32_t sdkVersion() const;
+ virtual uint32_t minOSVersion() const;
+ virtual const char* libPath(unsigned int) const;
+ virtual bool notifyObjC() const { return fNotifyObjC; }
+
+ static void printStatisticsDetails(unsigned int imageCount, const InitializerTimingList&);
+ static uint32_t minOSVersion(const mach_header*);
+ static uint32_t sdkVersion(const mach_header* mh);
+ static intptr_t computeSlide(const mach_header* mh);
+ static bool findSection(const mach_header* mh, const char* segmentName, const char* sectionName, void** sectAddress, uintptr_t* sectSize);
+ static const dyld_info_command* findDyldInfoLoadCommand(const mach_header* mh);
+ static const char* findClosestSymbol(const mach_header* mh, const void* addr, const void** closestAddr);
+ static bool getLazyBindingInfo(uint32_t& lazyBindingInfoOffset, const uint8_t* lazyInfoStart, const uint8_t* lazyInfoEnd,
+ uint8_t* segIndex, uintptr_t* segOffset, int* ordinal, const char** symbolName, bool* doneAfterBind);
+ static uintptr_t segPreferredAddress(const mach_header* mh, unsigned segIndex);
+ static uintptr_t bindLocation(const LinkContext& context, uintptr_t location, uintptr_t value,
+ uint8_t type, const char* symbolName,
+ intptr_t addend, const char* inPath, const char* toPath, const char* msg);
+ virtual void rebase(const LinkContext& context, uintptr_t slide) = 0;
+
+
+
protected:
ImageLoaderMachO(const ImageLoaderMachO&);
ImageLoaderMachO(const macho_header* mh, const char* path, unsigned int segCount,
void operator=(const ImageLoaderMachO&);
- virtual void setDyldInfo(const dyld_info_command*) = 0;
+ virtual void setDyldInfo(const struct dyld_info_command*) = 0;
virtual void setSymbolTableInfo(const macho_nlist*, const char*, const dysymtab_command*) = 0;
virtual bool isSubframeworkOf(const LinkContext& context, const ImageLoader* image) const = 0;
virtual bool hasSubLibrary(const LinkContext& context, const ImageLoader* child) const = 0;
virtual uint32_t* segmentCommandOffsets() const = 0;
- virtual void rebase(const LinkContext& context) = 0;
- virtual const ImageLoader::Symbol* findExportedSymbol(const char* name, const ImageLoader** foundIn) const = 0;
+ virtual const ImageLoader::Symbol* findShallowExportedSymbol(const char* name, const ImageLoader** foundIn) const = 0;
virtual bool containsSymbol(const void* addr) const = 0;
- virtual uintptr_t exportedSymbolAddress(const Symbol* symbol) const = 0;
+ virtual uintptr_t exportedSymbolAddress(const LinkContext& context, const Symbol* symbol, const ImageLoader* requestor, bool runResolver) const = 0;
virtual bool exportedSymbolIsWeakDefintion(const Symbol* symbol) const = 0;
virtual const char* exportedSymbolName(const Symbol* symbol) const = 0;
virtual unsigned int exportedSymbolCount() const = 0;
#if PREBOUND_IMAGE_SUPPORT
virtual void resetPreboundLazyPointers(const LinkContext& context) = 0;
#endif
-
+
virtual void doGetDependentLibraries(DependentLibraryInfo libs[]);
- virtual LibraryInfo doGetLibraryInfo();
+ virtual LibraryInfo doGetLibraryInfo(const LibraryInfo& requestorInfo);
virtual void getRPaths(const LinkContext& context, std::vector<const char*>&) const;
virtual bool getUUID(uuid_t) const;
virtual void doRebase(const LinkContext& context);
virtual void doBind(const LinkContext& context, bool forceLazysBound) = 0;
virtual void doBindJustLazies(const LinkContext& context) = 0;
- virtual void doInitialization(const LinkContext& context);
+ virtual bool doInitialization(const LinkContext& context);
virtual void doGetDOFSections(const LinkContext& context, std::vector<ImageLoader::DOFInfo>& dofs);
virtual bool needsTermination();
virtual bool segmentsMustSlideTogether() const;
virtual bool usesTwoLevelNameSpace() const;
virtual bool isPrebindable() const;
-
protected:
void destroy();
- static void sniffLoadCommands(const macho_header* mh, const char* path, bool* compressed,
- unsigned int* segCount, unsigned int* libCount);
+ static void sniffLoadCommands(const macho_header* mh, const char* path, bool inCache, bool* compressed,
+ unsigned int* segCount, unsigned int* libCount, const LinkContext& context,
+ const linkedit_data_command** codeSigCmd,
+ const encryption_info_command** encryptCmd);
static bool needsAddedLibSystemDepency(unsigned int libCount, const macho_header* mh);
-#if CODESIGNING_SUPPORT
- void loadCodeSignature(const uint8_t* fileData, int fd, uint64_t offsetInFatFile);
-#endif
+ void loadCodeSignature(const struct linkedit_data_command* codeSigCmd, int fd, uint64_t offsetInFatFile, const LinkContext& context);
+ void validateFirstPages(const struct linkedit_data_command* codeSigCmd, int fd, const uint8_t *fileData, size_t lenFileData, off_t offsetInFat, const LinkContext& context);
const struct macho_segment_command* segLoadCommand(unsigned int segIndex) const;
- void parseLoadCmds();
+ void parseLoadCmds(const ImageLoader::LinkContext& context);
+ int crashIfInvalidCodeSignature();
bool segHasRebaseFixUps(unsigned int) const;
bool segHasBindFixUps(unsigned int) const;
void segProtect(unsigned int segIndex, const ImageLoader::LinkContext& context);
void mapSegments(int fd, uint64_t offsetInFat, uint64_t lenInFat, uint64_t fileLen, const LinkContext& context);
void mapSegments(const void* memoryImage, uint64_t imageLen, const LinkContext& context);
void UnmapSegments();
- void __attribute__((noreturn)) throwSymbolNotFound(const char* symbol, const char* referencedFrom, const char* expectedIn);
+ void __attribute__((noreturn)) throwSymbolNotFound(const LinkContext& context, const char* symbol,
+ const char* referencedFrom, const char* fromVersMismatch,
+ const char* expectedIn);
void doImageInit(const LinkContext& context);
void doModInitFunctions(const LinkContext& context);
void setupLazyPointerHandler(const LinkContext& context);
void lookupProgramVars(const LinkContext& context) const;
- uintptr_t bindLocation(const LinkContext& context, uintptr_t location, uintptr_t value,
- const ImageLoader* targetImage, uint8_t type, const char* symbolName,
- intptr_t addend, const char* msg);
-
+
void makeTextSegmentWritable(const LinkContext& context, bool writeable);
void preFetchDATA(int fd, uint64_t offsetInFat, const LinkContext& context);
+ void doInterpose(const LinkContext& context) = 0;
bool hasReferencesToWeakSymbols() const;
- uintptr_t getSymbolAddress(const Symbol* sym, const ImageLoader* requestor, const LinkContext& context) const;
+ uintptr_t getSymbolAddress(const Symbol* sym, const ImageLoader* requestor,
+ const LinkContext& context, bool runResolver) const;
static uintptr_t bindLazySymbol(const mach_header*, uintptr_t* lazyPointer);
-protected:
+protected:
+ uint64_t fCoveredCodeLength;
const uint8_t* fMachOData;
const uint8_t* fLinkEditBase; // add any internal "offset" to this to get mapped address
uintptr_t fSlide;
fHasDOFSections : 1,
fHasDashInit : 1,
fHasInitializers : 1,
- fHasTerminators : 1;
-
+ fHasTerminators : 1,
+ fNotifyObjC : 1,
+ fRetainForObjC : 1,
+ fRegisteredAsRequiresCoalescing : 1; // <rdar://problem/7886402> Loading MH_DYLIB_STUB causing coalescable miscount
+
static uint32_t fgSymbolTableBinarySearchs;
- static uint32_t fgSymbolTrieSearchs;
};
projects / apple / dyld.git / blobdiff