//===-- COFFDumper.cpp - COFF-specific dumper -------------------*- C++ -*-===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// /// /// \file /// This file implements the COFF-specific dumper for llvm-readobj. /// //===----------------------------------------------------------------------===// #include "ARMWinEHPrinter.h" #include "ObjDumper.h" #include "StackMapPrinter.h" #include "Win64EHDumper.h" #include "llvm-readobj.h" #include "llvm/ADT/DenseMap.h" #include "llvm/ADT/SmallString.h" #include "llvm/ADT/StringExtras.h" #include "llvm/BinaryFormat/COFF.h" #include "llvm/DebugInfo/CodeView/CVTypeVisitor.h" #include "llvm/DebugInfo/CodeView/CodeView.h" #include "llvm/DebugInfo/CodeView/DebugChecksumsSubsection.h" #include "llvm/DebugInfo/CodeView/DebugFrameDataSubsection.h" #include "llvm/DebugInfo/CodeView/DebugInlineeLinesSubsection.h" #include "llvm/DebugInfo/CodeView/DebugLinesSubsection.h" #include "llvm/DebugInfo/CodeView/DebugStringTableSubsection.h" #include "llvm/DebugInfo/CodeView/LazyRandomTypeCollection.h" #include "llvm/DebugInfo/CodeView/Line.h" #include "llvm/DebugInfo/CodeView/MergingTypeTableBuilder.h" #include "llvm/DebugInfo/CodeView/RecordSerialization.h" #include "llvm/DebugInfo/CodeView/SymbolDumpDelegate.h" #include "llvm/DebugInfo/CodeView/SymbolDumper.h" #include "llvm/DebugInfo/CodeView/SymbolRecord.h" #include "llvm/DebugInfo/CodeView/TypeDumpVisitor.h" #include "llvm/DebugInfo/CodeView/TypeHashing.h" #include "llvm/DebugInfo/CodeView/TypeIndex.h" #include "llvm/DebugInfo/CodeView/TypeRecord.h" #include "llvm/DebugInfo/CodeView/TypeStreamMerger.h" #include "llvm/DebugInfo/CodeView/TypeTableCollection.h" #include "llvm/Object/COFF.h" #include "llvm/Object/ObjectFile.h" #include "llvm/Object/WindowsResource.h" #include "llvm/Support/BinaryStreamReader.h" #include "llvm/Support/Casting.h" #include "llvm/Support/Compiler.h" #include "llvm/Support/ConvertUTF.h" #include "llvm/Support/FormatVariadic.h" #include "llvm/Support/LEB128.h" #include "llvm/Support/ScopedPrinter.h" #include "llvm/Support/Win64EH.h" #include "llvm/Support/raw_ostream.h" using namespace llvm; using namespace llvm::object; using namespace llvm::codeview; using namespace llvm::support; using namespace llvm::Win64EH; namespace { struct LoadConfigTables { uint64_t SEHTableVA = 0; uint64_t SEHTableCount = 0; uint32_t GuardFlags = 0; uint64_t GuardFidTableVA = 0; uint64_t GuardFidTableCount = 0; uint64_t GuardIatTableVA = 0; uint64_t GuardIatTableCount = 0; uint64_t GuardLJmpTableVA = 0; uint64_t GuardLJmpTableCount = 0; uint64_t GuardEHContTableVA = 0; uint64_t GuardEHContTableCount = 0; }; class COFFDumper : public ObjDumper { public: friend class COFFObjectDumpDelegate; COFFDumper(const llvm::object::COFFObjectFile *Obj, ScopedPrinter &Writer) : ObjDumper(Writer, Obj->getFileName()), Obj(Obj), Writer(Writer), Types(100) {} void printFileHeaders() override; void printSectionHeaders() override; void printRelocations() override; void printUnwindInfo() override; void printNeededLibraries() override; void printCOFFImports() override; void printCOFFExports() override; void printCOFFDirectives() override; void printCOFFBaseReloc() override; void printCOFFDebugDirectory() override; void printCOFFTLSDirectory() override; void printCOFFResources() override; void printCOFFLoadConfig() override; void printCodeViewDebugInfo() override; void mergeCodeViewTypes(llvm::codeview::MergingTypeTableBuilder &CVIDs, llvm::codeview::MergingTypeTableBuilder &CVTypes, llvm::codeview::GlobalTypeTableBuilder &GlobalCVIDs, llvm::codeview::GlobalTypeTableBuilder &GlobalCVTypes, bool GHash) override; void printStackMap() const override; void printAddrsig() override; void printCGProfile() override; private: StringRef getSymbolName(uint32_t Index); void printSymbols() override; void printDynamicSymbols() override; void printSymbol(const SymbolRef &Sym); void printRelocation(const SectionRef &Section, const RelocationRef &Reloc, uint64_t Bias = 0); void printDataDirectory(uint32_t Index, const std::string &FieldName); void printDOSHeader(const dos_header *DH); template void printPEHeader(const PEHeader *Hdr); void printBaseOfDataField(const pe32_header *Hdr); void printBaseOfDataField(const pe32plus_header *Hdr); template void printCOFFLoadConfig(const T *Conf, LoadConfigTables &Tables); template void printCOFFTLSDirectory(const coff_tls_directory *TlsTable); typedef void (*PrintExtraCB)(raw_ostream &, const uint8_t *); void printRVATable(uint64_t TableVA, uint64_t Count, uint64_t EntrySize, PrintExtraCB PrintExtra = 0); void printCodeViewSymbolSection(StringRef SectionName, const SectionRef &Section); void printCodeViewTypeSection(StringRef SectionName, const SectionRef &Section); StringRef getFileNameForFileOffset(uint32_t FileOffset); void printFileNameForOffset(StringRef Label, uint32_t FileOffset); void printTypeIndex(StringRef FieldName, TypeIndex TI) { // Forward to CVTypeDumper for simplicity. codeview::printTypeIndex(Writer, FieldName, TI, Types); } void printCodeViewSymbolsSubsection(StringRef Subsection, const SectionRef &Section, StringRef SectionContents); void printCodeViewFileChecksums(StringRef Subsection); void printCodeViewInlineeLines(StringRef Subsection); void printRelocatedField(StringRef Label, const coff_section *Sec, uint32_t RelocOffset, uint32_t Offset, StringRef *RelocSym = nullptr); uint32_t countTotalTableEntries(ResourceSectionRef RSF, const coff_resource_dir_table &Table, StringRef Level); void printResourceDirectoryTable(ResourceSectionRef RSF, const coff_resource_dir_table &Table, StringRef Level); void printBinaryBlockWithRelocs(StringRef Label, const SectionRef &Sec, StringRef SectionContents, StringRef Block); /// Given a .debug$S section, find the string table and file checksum table. void initializeFileAndStringTables(BinaryStreamReader &Reader); void cacheRelocations(); std::error_code resolveSymbol(const coff_section *Section, uint64_t Offset, SymbolRef &Sym); std::error_code resolveSymbolName(const coff_section *Section, uint64_t Offset, StringRef &Name); std::error_code resolveSymbolName(const coff_section *Section, StringRef SectionContents, const void *RelocPtr, StringRef &Name); void printImportedSymbols(iterator_range Range); void printDelayImportedSymbols( const DelayImportDirectoryEntryRef &I, iterator_range Range); typedef DenseMap > RelocMapTy; const llvm::object::COFFObjectFile *Obj; bool RelocCached = false; RelocMapTy RelocMap; DebugChecksumsSubsectionRef CVFileChecksumTable; DebugStringTableSubsectionRef CVStringTable; /// Track the compilation CPU type. S_COMPILE3 symbol records typically come /// first, but if we don't see one, just assume an X64 CPU type. It is common. CPUType CompilationCPUType = CPUType::X64; ScopedPrinter &Writer; BinaryByteStream TypeContents; LazyRandomTypeCollection Types; }; class COFFObjectDumpDelegate : public SymbolDumpDelegate { public: COFFObjectDumpDelegate(COFFDumper &CD, const SectionRef &SR, const COFFObjectFile *Obj, StringRef SectionContents) : CD(CD), SR(SR), SectionContents(SectionContents) { Sec = Obj->getCOFFSection(SR); } uint32_t getRecordOffset(BinaryStreamReader Reader) override { ArrayRef Data; if (auto EC = Reader.readLongestContiguousChunk(Data)) { llvm::consumeError(std::move(EC)); return 0; } return Data.data() - SectionContents.bytes_begin(); } void printRelocatedField(StringRef Label, uint32_t RelocOffset, uint32_t Offset, StringRef *RelocSym) override { CD.printRelocatedField(Label, Sec, RelocOffset, Offset, RelocSym); } void printBinaryBlockWithRelocs(StringRef Label, ArrayRef Block) override { StringRef SBlock(reinterpret_cast(Block.data()), Block.size()); if (opts::CodeViewSubsectionBytes) CD.printBinaryBlockWithRelocs(Label, SR, SectionContents, SBlock); } StringRef getFileNameForFileOffset(uint32_t FileOffset) override { return CD.getFileNameForFileOffset(FileOffset); } DebugStringTableSubsectionRef getStringTable() override { return CD.CVStringTable; } private: COFFDumper &CD; const SectionRef &SR; const coff_section *Sec; StringRef SectionContents; }; } // end namespace namespace llvm { std::unique_ptr createCOFFDumper(const object::COFFObjectFile &Obj, ScopedPrinter &Writer) { return std::make_unique(&Obj, Writer); } } // namespace llvm // Given a section and an offset into this section the function returns the // symbol used for the relocation at the offset. std::error_code COFFDumper::resolveSymbol(const coff_section *Section, uint64_t Offset, SymbolRef &Sym) { cacheRelocations(); const auto &Relocations = RelocMap[Section]; auto SymI = Obj->symbol_end(); for (const auto &Relocation : Relocations) { uint64_t RelocationOffset = Relocation.getOffset(); if (RelocationOffset == Offset) { SymI = Relocation.getSymbol(); break; } } if (SymI == Obj->symbol_end()) return inconvertibleErrorCode(); Sym = *SymI; return std::error_code(); } // Given a section and an offset into this section the function returns the name // of the symbol used for the relocation at the offset. std::error_code COFFDumper::resolveSymbolName(const coff_section *Section, uint64_t Offset, StringRef &Name) { SymbolRef Symbol; if (std::error_code EC = resolveSymbol(Section, Offset, Symbol)) return EC; Expected NameOrErr = Symbol.getName(); if (!NameOrErr) return errorToErrorCode(NameOrErr.takeError()); Name = *NameOrErr; return std::error_code(); } // Helper for when you have a pointer to real data and you want to know about // relocations against it. std::error_code COFFDumper::resolveSymbolName(const coff_section *Section, StringRef SectionContents, const void *RelocPtr, StringRef &Name) { assert(SectionContents.data() < RelocPtr && RelocPtr < SectionContents.data() + SectionContents.size() && "pointer to relocated object is not in section"); uint64_t Offset = ptrdiff_t(reinterpret_cast(RelocPtr) - SectionContents.data()); return resolveSymbolName(Section, Offset, Name); } void COFFDumper::printRelocatedField(StringRef Label, const coff_section *Sec, uint32_t RelocOffset, uint32_t Offset, StringRef *RelocSym) { StringRef SymStorage; StringRef &Symbol = RelocSym ? *RelocSym : SymStorage; if (!resolveSymbolName(Sec, RelocOffset, Symbol)) W.printSymbolOffset(Label, Symbol, Offset); else W.printHex(Label, RelocOffset); } void COFFDumper::printBinaryBlockWithRelocs(StringRef Label, const SectionRef &Sec, StringRef SectionContents, StringRef Block) { W.printBinaryBlock(Label, Block); assert(SectionContents.begin() < Block.begin() && SectionContents.end() >= Block.end() && "Block is not contained in SectionContents"); uint64_t OffsetStart = Block.data() - SectionContents.data(); uint64_t OffsetEnd = OffsetStart + Block.size(); W.flush(); cacheRelocations(); ListScope D(W, "BlockRelocations"); const coff_section *Section = Obj->getCOFFSection(Sec); const auto &Relocations = RelocMap[Section]; for (const auto &Relocation : Relocations) { uint64_t RelocationOffset = Relocation.getOffset(); if (OffsetStart <= RelocationOffset && RelocationOffset < OffsetEnd) printRelocation(Sec, Relocation, OffsetStart); } } static const EnumEntry ImageFileMachineType[] = { LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_UNKNOWN ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_AM33 ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_AMD64 ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_ARM ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_ARM64 ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_ARMNT ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_EBC ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_I386 ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_IA64 ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_M32R ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_MIPS16 ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_MIPSFPU ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_MIPSFPU16), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_POWERPC ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_POWERPCFP), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_R4000 ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_SH3 ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_SH3DSP ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_SH4 ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_SH5 ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_THUMB ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_MACHINE_WCEMIPSV2) }; static const EnumEntry ImageFileCharacteristics[] = { LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_RELOCS_STRIPPED ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_EXECUTABLE_IMAGE ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_LINE_NUMS_STRIPPED ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_LOCAL_SYMS_STRIPPED ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_AGGRESSIVE_WS_TRIM ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_LARGE_ADDRESS_AWARE ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_BYTES_REVERSED_LO ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_32BIT_MACHINE ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_DEBUG_STRIPPED ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_NET_RUN_FROM_SWAP ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_SYSTEM ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_DLL ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_UP_SYSTEM_ONLY ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_FILE_BYTES_REVERSED_HI ) }; static const EnumEntry PEWindowsSubsystem[] = { LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_UNKNOWN ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_NATIVE ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_WINDOWS_GUI ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_WINDOWS_CUI ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_POSIX_CUI ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_WINDOWS_CE_GUI ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_EFI_APPLICATION ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_EFI_ROM ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SUBSYSTEM_XBOX ), }; static const EnumEntry PEDLLCharacteristics[] = { LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_HIGH_ENTROPY_VA ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_FORCE_INTEGRITY ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_NX_COMPAT ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_NO_ISOLATION ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_NO_SEH ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_NO_BIND ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_APPCONTAINER ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_WDM_DRIVER ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_GUARD_CF ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_TERMINAL_SERVER_AWARE), }; static const EnumEntry PEExtendedDLLCharacteristics[] = { LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_EX_CET_COMPAT), }; static const EnumEntry ImageSectionCharacteristics[] = { LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_TYPE_NOLOAD ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_TYPE_NO_PAD ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_CNT_CODE ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_CNT_INITIALIZED_DATA ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_CNT_UNINITIALIZED_DATA), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_LNK_OTHER ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_LNK_INFO ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_LNK_REMOVE ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_LNK_COMDAT ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_GPREL ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_PURGEABLE ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_16BIT ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_LOCKED ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_PRELOAD ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_1BYTES ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_2BYTES ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_4BYTES ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_8BYTES ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_16BYTES ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_32BYTES ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_64BYTES ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_128BYTES ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_256BYTES ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_512BYTES ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_1024BYTES ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_2048BYTES ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_4096BYTES ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_ALIGN_8192BYTES ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_LNK_NRELOC_OVFL ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_DISCARDABLE ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_NOT_CACHED ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_NOT_PAGED ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_SHARED ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_EXECUTE ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_READ ), LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_SCN_MEM_WRITE ) }; static const EnumEntry ImageSymType[] = { { "Null" , COFF::IMAGE_SYM_TYPE_NULL }, { "Void" , COFF::IMAGE_SYM_TYPE_VOID }, { "Char" , COFF::IMAGE_SYM_TYPE_CHAR }, { "Short" , COFF::IMAGE_SYM_TYPE_SHORT }, { "Int" , COFF::IMAGE_SYM_TYPE_INT }, { "Long" , COFF::IMAGE_SYM_TYPE_LONG }, { "Float" , COFF::IMAGE_SYM_TYPE_FLOAT }, { "Double", COFF::IMAGE_SYM_TYPE_DOUBLE }, { "Struct", COFF::IMAGE_SYM_TYPE_STRUCT }, { "Union" , COFF::IMAGE_SYM_TYPE_UNION }, { "Enum" , COFF::IMAGE_SYM_TYPE_ENUM }, { "MOE" , COFF::IMAGE_SYM_TYPE_MOE }, { "Byte" , COFF::IMAGE_SYM_TYPE_BYTE }, { "Word" , COFF::IMAGE_SYM_TYPE_WORD }, { "UInt" , COFF::IMAGE_SYM_TYPE_UINT }, { "DWord" , COFF::IMAGE_SYM_TYPE_DWORD } }; static const EnumEntry ImageSymDType[] = { { "Null" , COFF::IMAGE_SYM_DTYPE_NULL }, { "Pointer" , COFF::IMAGE_SYM_DTYPE_POINTER }, { "Function", COFF::IMAGE_SYM_DTYPE_FUNCTION }, { "Array" , COFF::IMAGE_SYM_DTYPE_ARRAY } }; static const EnumEntry ImageSymClass[] = { { "EndOfFunction" , COFF::IMAGE_SYM_CLASS_END_OF_FUNCTION }, { "Null" , COFF::IMAGE_SYM_CLASS_NULL }, { "Automatic" , COFF::IMAGE_SYM_CLASS_AUTOMATIC }, { "External" , COFF::IMAGE_SYM_CLASS_EXTERNAL }, { "Static" , COFF::IMAGE_SYM_CLASS_STATIC }, { "Register" , COFF::IMAGE_SYM_CLASS_REGISTER }, { "ExternalDef" , COFF::IMAGE_SYM_CLASS_EXTERNAL_DEF }, { "Label" , COFF::IMAGE_SYM_CLASS_LABEL }, { "UndefinedLabel" , COFF::IMAGE_SYM_CLASS_UNDEFINED_LABEL }, { "MemberOfStruct" , COFF::IMAGE_SYM_CLASS_MEMBER_OF_STRUCT }, { "Argument" , COFF::IMAGE_SYM_CLASS_ARGUMENT }, { "StructTag" , COFF::IMAGE_SYM_CLASS_STRUCT_TAG }, { "MemberOfUnion" , COFF::IMAGE_SYM_CLASS_MEMBER_OF_UNION }, { "UnionTag" , COFF::IMAGE_SYM_CLASS_UNION_TAG }, { "TypeDefinition" , COFF::IMAGE_SYM_CLASS_TYPE_DEFINITION }, { "UndefinedStatic", COFF::IMAGE_SYM_CLASS_UNDEFINED_STATIC }, { "EnumTag" , COFF::IMAGE_SYM_CLASS_ENUM_TAG }, { "MemberOfEnum" , COFF::IMAGE_SYM_CLASS_MEMBER_OF_ENUM }, { "RegisterParam" , COFF::IMAGE_SYM_CLASS_REGISTER_PARAM }, { "BitField" , COFF::IMAGE_SYM_CLASS_BIT_FIELD }, { "Block" , COFF::IMAGE_SYM_CLASS_BLOCK }, { "Function" , COFF::IMAGE_SYM_CLASS_FUNCTION }, { "EndOfStruct" , COFF::IMAGE_SYM_CLASS_END_OF_STRUCT }, { "File" , COFF::IMAGE_SYM_CLASS_FILE }, { "Section" , COFF::IMAGE_SYM_CLASS_SECTION }, { "WeakExternal" , COFF::IMAGE_SYM_CLASS_WEAK_EXTERNAL }, { "CLRToken" , COFF::IMAGE_SYM_CLASS_CLR_TOKEN } }; static const EnumEntry ImageCOMDATSelect[] = { { "NoDuplicates", COFF::IMAGE_COMDAT_SELECT_NODUPLICATES }, { "Any" , COFF::IMAGE_COMDAT_SELECT_ANY }, { "SameSize" , COFF::IMAGE_COMDAT_SELECT_SAME_SIZE }, { "ExactMatch" , COFF::IMAGE_COMDAT_SELECT_EXACT_MATCH }, { "Associative" , COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE }, { "Largest" , COFF::IMAGE_COMDAT_SELECT_LARGEST }, { "Newest" , COFF::IMAGE_COMDAT_SELECT_NEWEST } }; static const EnumEntry ImageDebugType[] = { {"Unknown", COFF::IMAGE_DEBUG_TYPE_UNKNOWN}, {"COFF", COFF::IMAGE_DEBUG_TYPE_COFF}, {"CodeView", COFF::IMAGE_DEBUG_TYPE_CODEVIEW}, {"FPO", COFF::IMAGE_DEBUG_TYPE_FPO}, {"Misc", COFF::IMAGE_DEBUG_TYPE_MISC}, {"Exception", COFF::IMAGE_DEBUG_TYPE_EXCEPTION}, {"Fixup", COFF::IMAGE_DEBUG_TYPE_FIXUP}, {"OmapToSrc", COFF::IMAGE_DEBUG_TYPE_OMAP_TO_SRC}, {"OmapFromSrc", COFF::IMAGE_DEBUG_TYPE_OMAP_FROM_SRC}, {"Borland", COFF::IMAGE_DEBUG_TYPE_BORLAND}, {"Reserved10", COFF::IMAGE_DEBUG_TYPE_RESERVED10}, {"CLSID", COFF::IMAGE_DEBUG_TYPE_CLSID}, {"VCFeature", COFF::IMAGE_DEBUG_TYPE_VC_FEATURE}, {"POGO", COFF::IMAGE_DEBUG_TYPE_POGO}, {"ILTCG", COFF::IMAGE_DEBUG_TYPE_ILTCG}, {"MPX", COFF::IMAGE_DEBUG_TYPE_MPX}, {"Repro", COFF::IMAGE_DEBUG_TYPE_REPRO}, {"ExtendedDLLCharacteristics", COFF::IMAGE_DEBUG_TYPE_EX_DLLCHARACTERISTICS}, }; static const EnumEntry WeakExternalCharacteristics[] = { { "NoLibrary", COFF::IMAGE_WEAK_EXTERN_SEARCH_NOLIBRARY }, { "Library" , COFF::IMAGE_WEAK_EXTERN_SEARCH_LIBRARY }, { "Alias" , COFF::IMAGE_WEAK_EXTERN_SEARCH_ALIAS } }; static const EnumEntry SubSectionTypes[] = { LLVM_READOBJ_ENUM_CLASS_ENT(DebugSubsectionKind, Symbols), LLVM_READOBJ_ENUM_CLASS_ENT(DebugSubsectionKind, Lines), LLVM_READOBJ_ENUM_CLASS_ENT(DebugSubsectionKind, StringTable), LLVM_READOBJ_ENUM_CLASS_ENT(DebugSubsectionKind, FileChecksums), LLVM_READOBJ_ENUM_CLASS_ENT(DebugSubsectionKind, FrameData), LLVM_READOBJ_ENUM_CLASS_ENT(DebugSubsectionKind, InlineeLines), LLVM_READOBJ_ENUM_CLASS_ENT(DebugSubsectionKind, CrossScopeImports), LLVM_READOBJ_ENUM_CLASS_ENT(DebugSubsectionKind, CrossScopeExports), LLVM_READOBJ_ENUM_CLASS_ENT(DebugSubsectionKind, ILLines), LLVM_READOBJ_ENUM_CLASS_ENT(DebugSubsectionKind, FuncMDTokenMap), LLVM_READOBJ_ENUM_CLASS_ENT(DebugSubsectionKind, TypeMDTokenMap), LLVM_READOBJ_ENUM_CLASS_ENT(DebugSubsectionKind, MergedAssemblyInput), LLVM_READOBJ_ENUM_CLASS_ENT(DebugSubsectionKind, CoffSymbolRVA), }; static const EnumEntry FrameDataFlags[] = { LLVM_READOBJ_ENUM_ENT(FrameData, HasSEH), LLVM_READOBJ_ENUM_ENT(FrameData, HasEH), LLVM_READOBJ_ENUM_ENT(FrameData, IsFunctionStart), }; static const EnumEntry FileChecksumKindNames[] = { LLVM_READOBJ_ENUM_CLASS_ENT(FileChecksumKind, None), LLVM_READOBJ_ENUM_CLASS_ENT(FileChecksumKind, MD5), LLVM_READOBJ_ENUM_CLASS_ENT(FileChecksumKind, SHA1), LLVM_READOBJ_ENUM_CLASS_ENT(FileChecksumKind, SHA256), }; template static std::error_code getSymbolAuxData(const COFFObjectFile *Obj, COFFSymbolRef Symbol, uint8_t AuxSymbolIdx, const T *&Aux) { ArrayRef AuxData = Obj->getSymbolAuxData(Symbol); AuxData = AuxData.slice(AuxSymbolIdx * Obj->getSymbolTableEntrySize()); Aux = reinterpret_cast(AuxData.data()); return std::error_code(); } void COFFDumper::cacheRelocations() { if (RelocCached) return; RelocCached = true; for (const SectionRef &S : Obj->sections()) { const coff_section *Section = Obj->getCOFFSection(S); append_range(RelocMap[Section], S.relocations()); // Sort relocations by address. llvm::sort(RelocMap[Section], [](RelocationRef L, RelocationRef R) { return L.getOffset() < R.getOffset(); }); } } void COFFDumper::printDataDirectory(uint32_t Index, const std::string &FieldName) { const data_directory *Data = Obj->getDataDirectory(Index); if (!Data) return; W.printHex(FieldName + "RVA", Data->RelativeVirtualAddress); W.printHex(FieldName + "Size", Data->Size); } void COFFDumper::printFileHeaders() { time_t TDS = Obj->getTimeDateStamp(); char FormattedTime[20] = { }; strftime(FormattedTime, 20, "%Y-%m-%d %H:%M:%S", gmtime(&TDS)); { DictScope D(W, "ImageFileHeader"); W.printEnum ("Machine", Obj->getMachine(), makeArrayRef(ImageFileMachineType)); W.printNumber("SectionCount", Obj->getNumberOfSections()); W.printHex ("TimeDateStamp", FormattedTime, Obj->getTimeDateStamp()); W.printHex ("PointerToSymbolTable", Obj->getPointerToSymbolTable()); W.printNumber("SymbolCount", Obj->getNumberOfSymbols()); W.printNumber("StringTableSize", Obj->getStringTableSize()); W.printNumber("OptionalHeaderSize", Obj->getSizeOfOptionalHeader()); W.printFlags ("Characteristics", Obj->getCharacteristics(), makeArrayRef(ImageFileCharacteristics)); } // Print PE header. This header does not exist if this is an object file and // not an executable. if (const pe32_header *PEHeader = Obj->getPE32Header()) printPEHeader(PEHeader); if (const pe32plus_header *PEPlusHeader = Obj->getPE32PlusHeader()) printPEHeader(PEPlusHeader); if (const dos_header *DH = Obj->getDOSHeader()) printDOSHeader(DH); } void COFFDumper::printDOSHeader(const dos_header *DH) { DictScope D(W, "DOSHeader"); W.printString("Magic", StringRef(DH->Magic, sizeof(DH->Magic))); W.printNumber("UsedBytesInTheLastPage", DH->UsedBytesInTheLastPage); W.printNumber("FileSizeInPages", DH->FileSizeInPages); W.printNumber("NumberOfRelocationItems", DH->NumberOfRelocationItems); W.printNumber("HeaderSizeInParagraphs", DH->HeaderSizeInParagraphs); W.printNumber("MinimumExtraParagraphs", DH->MinimumExtraParagraphs); W.printNumber("MaximumExtraParagraphs", DH->MaximumExtraParagraphs); W.printNumber("InitialRelativeSS", DH->InitialRelativeSS); W.printNumber("InitialSP", DH->InitialSP); W.printNumber("Checksum", DH->Checksum); W.printNumber("InitialIP", DH->InitialIP); W.printNumber("InitialRelativeCS", DH->InitialRelativeCS); W.printNumber("AddressOfRelocationTable", DH->AddressOfRelocationTable); W.printNumber("OverlayNumber", DH->OverlayNumber); W.printNumber("OEMid", DH->OEMid); W.printNumber("OEMinfo", DH->OEMinfo); W.printNumber("AddressOfNewExeHeader", DH->AddressOfNewExeHeader); } template void COFFDumper::printPEHeader(const PEHeader *Hdr) { DictScope D(W, "ImageOptionalHeader"); W.printHex ("Magic", Hdr->Magic); W.printNumber("MajorLinkerVersion", Hdr->MajorLinkerVersion); W.printNumber("MinorLinkerVersion", Hdr->MinorLinkerVersion); W.printNumber("SizeOfCode", Hdr->SizeOfCode); W.printNumber("SizeOfInitializedData", Hdr->SizeOfInitializedData); W.printNumber("SizeOfUninitializedData", Hdr->SizeOfUninitializedData); W.printHex ("AddressOfEntryPoint", Hdr->AddressOfEntryPoint); W.printHex ("BaseOfCode", Hdr->BaseOfCode); printBaseOfDataField(Hdr); W.printHex ("ImageBase", Hdr->ImageBase); W.printNumber("SectionAlignment", Hdr->SectionAlignment); W.printNumber("FileAlignment", Hdr->FileAlignment); W.printNumber("MajorOperatingSystemVersion", Hdr->MajorOperatingSystemVersion); W.printNumber("MinorOperatingSystemVersion", Hdr->MinorOperatingSystemVersion); W.printNumber("MajorImageVersion", Hdr->MajorImageVersion); W.printNumber("MinorImageVersion", Hdr->MinorImageVersion); W.printNumber("MajorSubsystemVersion", Hdr->MajorSubsystemVersion); W.printNumber("MinorSubsystemVersion", Hdr->MinorSubsystemVersion); W.printNumber("SizeOfImage", Hdr->SizeOfImage); W.printNumber("SizeOfHeaders", Hdr->SizeOfHeaders); W.printEnum ("Subsystem", Hdr->Subsystem, makeArrayRef(PEWindowsSubsystem)); W.printFlags ("Characteristics", Hdr->DLLCharacteristics, makeArrayRef(PEDLLCharacteristics)); W.printNumber("SizeOfStackReserve", Hdr->SizeOfStackReserve); W.printNumber("SizeOfStackCommit", Hdr->SizeOfStackCommit); W.printNumber("SizeOfHeapReserve", Hdr->SizeOfHeapReserve); W.printNumber("SizeOfHeapCommit", Hdr->SizeOfHeapCommit); W.printNumber("NumberOfRvaAndSize", Hdr->NumberOfRvaAndSize); if (Hdr->NumberOfRvaAndSize > 0) { DictScope D(W, "DataDirectory"); static const char * const directory[] = { "ExportTable", "ImportTable", "ResourceTable", "ExceptionTable", "CertificateTable", "BaseRelocationTable", "Debug", "Architecture", "GlobalPtr", "TLSTable", "LoadConfigTable", "BoundImport", "IAT", "DelayImportDescriptor", "CLRRuntimeHeader", "Reserved" }; for (uint32_t i = 0; i < Hdr->NumberOfRvaAndSize; ++i) printDataDirectory(i, directory[i]); } } void COFFDumper::printCOFFDebugDirectory() { ListScope LS(W, "DebugDirectory"); for (const debug_directory &D : Obj->debug_directories()) { char FormattedTime[20] = {}; time_t TDS = D.TimeDateStamp; strftime(FormattedTime, 20, "%Y-%m-%d %H:%M:%S", gmtime(&TDS)); DictScope S(W, "DebugEntry"); W.printHex("Characteristics", D.Characteristics); W.printHex("TimeDateStamp", FormattedTime, D.TimeDateStamp); W.printHex("MajorVersion", D.MajorVersion); W.printHex("MinorVersion", D.MinorVersion); W.printEnum("Type", D.Type, makeArrayRef(ImageDebugType)); W.printHex("SizeOfData", D.SizeOfData); W.printHex("AddressOfRawData", D.AddressOfRawData); W.printHex("PointerToRawData", D.PointerToRawData); // Ideally, if D.AddressOfRawData == 0, we should try to load the payload // using D.PointerToRawData instead. if (D.AddressOfRawData == 0) continue; if (D.Type == COFF::IMAGE_DEBUG_TYPE_CODEVIEW) { const codeview::DebugInfo *DebugInfo; StringRef PDBFileName; if (Error E = Obj->getDebugPDBInfo(&D, DebugInfo, PDBFileName)) reportError(std::move(E), Obj->getFileName()); DictScope PDBScope(W, "PDBInfo"); W.printHex("PDBSignature", DebugInfo->Signature.CVSignature); if (DebugInfo->Signature.CVSignature == OMF::Signature::PDB70) { W.printBinary("PDBGUID", makeArrayRef(DebugInfo->PDB70.Signature)); W.printNumber("PDBAge", DebugInfo->PDB70.Age); W.printString("PDBFileName", PDBFileName); } } else if (D.SizeOfData != 0) { // FIXME: Data visualization for IMAGE_DEBUG_TYPE_VC_FEATURE and // IMAGE_DEBUG_TYPE_POGO? ArrayRef RawData; if (Error E = Obj->getRvaAndSizeAsBytes(D.AddressOfRawData, D.SizeOfData, RawData)) reportError(std::move(E), Obj->getFileName()); if (D.Type == COFF::IMAGE_DEBUG_TYPE_EX_DLLCHARACTERISTICS) { // FIXME right now the only possible value would fit in 8 bits, // but that might change in the future uint16_t Characteristics = RawData[0]; W.printFlags("ExtendedCharacteristics", Characteristics, makeArrayRef(PEExtendedDLLCharacteristics)); } W.printBinaryBlock("RawData", RawData); } } } void COFFDumper::printRVATable(uint64_t TableVA, uint64_t Count, uint64_t EntrySize, PrintExtraCB PrintExtra) { uintptr_t TableStart, TableEnd; if (Error E = Obj->getVaPtr(TableVA, TableStart)) reportError(std::move(E), Obj->getFileName()); if (Error E = Obj->getVaPtr(TableVA + Count * EntrySize - 1, TableEnd)) reportError(std::move(E), Obj->getFileName()); TableEnd++; for (uintptr_t I = TableStart; I < TableEnd; I += EntrySize) { uint32_t RVA = *reinterpret_cast(I); raw_ostream &OS = W.startLine(); OS << W.hex(Obj->getImageBase() + RVA); if (PrintExtra) PrintExtra(OS, reinterpret_cast(I)); OS << '\n'; } } void COFFDumper::printCOFFLoadConfig() { LoadConfigTables Tables; if (Obj->is64()) printCOFFLoadConfig(Obj->getLoadConfig64(), Tables); else printCOFFLoadConfig(Obj->getLoadConfig32(), Tables); if (Tables.SEHTableVA) { ListScope LS(W, "SEHTable"); printRVATable(Tables.SEHTableVA, Tables.SEHTableCount, 4); } auto PrintGuardFlags = [](raw_ostream &OS, const uint8_t *Entry) { uint8_t Flags = *reinterpret_cast(Entry + 4); if (Flags) OS << " flags " << utohexstr(Flags); }; if (Tables.GuardFidTableVA) { ListScope LS(W, "GuardFidTable"); if (Tables.GuardFlags & uint32_t(coff_guard_flags::FidTableHasFlags)) printRVATable(Tables.GuardFidTableVA, Tables.GuardFidTableCount, 5, PrintGuardFlags); else printRVATable(Tables.GuardFidTableVA, Tables.GuardFidTableCount, 4); } if (Tables.GuardIatTableVA) { ListScope LS(W, "GuardIatTable"); printRVATable(Tables.GuardIatTableVA, Tables.GuardIatTableCount, 4); } if (Tables.GuardLJmpTableVA) { ListScope LS(W, "GuardLJmpTable"); printRVATable(Tables.GuardLJmpTableVA, Tables.GuardLJmpTableCount, 4); } if (Tables.GuardEHContTableVA) { ListScope LS(W, "GuardEHContTable"); printRVATable(Tables.GuardEHContTableVA, Tables.GuardEHContTableCount, 5, PrintGuardFlags); } } template void COFFDumper::printCOFFLoadConfig(const T *Conf, LoadConfigTables &Tables) { if (!Conf) return; ListScope LS(W, "LoadConfig"); char FormattedTime[20] = {}; time_t TDS = Conf->TimeDateStamp; strftime(FormattedTime, 20, "%Y-%m-%d %H:%M:%S", gmtime(&TDS)); W.printHex("Size", Conf->Size); // Print everything before SecurityCookie. The vast majority of images today // have all these fields. if (Conf->Size < offsetof(T, SEHandlerTable)) return; W.printHex("TimeDateStamp", FormattedTime, TDS); W.printHex("MajorVersion", Conf->MajorVersion); W.printHex("MinorVersion", Conf->MinorVersion); W.printHex("GlobalFlagsClear", Conf->GlobalFlagsClear); W.printHex("GlobalFlagsSet", Conf->GlobalFlagsSet); W.printHex("CriticalSectionDefaultTimeout", Conf->CriticalSectionDefaultTimeout); W.printHex("DeCommitFreeBlockThreshold", Conf->DeCommitFreeBlockThreshold); W.printHex("DeCommitTotalFreeThreshold", Conf->DeCommitTotalFreeThreshold); W.printHex("LockPrefixTable", Conf->LockPrefixTable); W.printHex("MaximumAllocationSize", Conf->MaximumAllocationSize); W.printHex("VirtualMemoryThreshold", Conf->VirtualMemoryThreshold); W.printHex("ProcessHeapFlags", Conf->ProcessHeapFlags); W.printHex("ProcessAffinityMask", Conf->ProcessAffinityMask); W.printHex("CSDVersion", Conf->CSDVersion); W.printHex("DependentLoadFlags", Conf->DependentLoadFlags); W.printHex("EditList", Conf->EditList); W.printHex("SecurityCookie", Conf->SecurityCookie); // Print the safe SEH table if present. if (Conf->Size < offsetof(coff_load_configuration32, GuardCFCheckFunction)) return; W.printHex("SEHandlerTable", Conf->SEHandlerTable); W.printNumber("SEHandlerCount", Conf->SEHandlerCount); Tables.SEHTableVA = Conf->SEHandlerTable; Tables.SEHTableCount = Conf->SEHandlerCount; // Print everything before CodeIntegrity. (2015) if (Conf->Size < offsetof(T, CodeIntegrity)) return; W.printHex("GuardCFCheckFunction", Conf->GuardCFCheckFunction); W.printHex("GuardCFCheckDispatch", Conf->GuardCFCheckDispatch); W.printHex("GuardCFFunctionTable", Conf->GuardCFFunctionTable); W.printNumber("GuardCFFunctionCount", Conf->GuardCFFunctionCount); W.printHex("GuardFlags", Conf->GuardFlags); Tables.GuardFidTableVA = Conf->GuardCFFunctionTable; Tables.GuardFidTableCount = Conf->GuardCFFunctionCount; Tables.GuardFlags = Conf->GuardFlags; // Print everything before Reserved3. (2017) if (Conf->Size < offsetof(T, Reserved3)) return; W.printHex("GuardAddressTakenIatEntryTable", Conf->GuardAddressTakenIatEntryTable); W.printNumber("GuardAddressTakenIatEntryCount", Conf->GuardAddressTakenIatEntryCount); W.printHex("GuardLongJumpTargetTable", Conf->GuardLongJumpTargetTable); W.printNumber("GuardLongJumpTargetCount", Conf->GuardLongJumpTargetCount); W.printHex("DynamicValueRelocTable", Conf->DynamicValueRelocTable); W.printHex("CHPEMetadataPointer", Conf->CHPEMetadataPointer); W.printHex("GuardRFFailureRoutine", Conf->GuardRFFailureRoutine); W.printHex("GuardRFFailureRoutineFunctionPointer", Conf->GuardRFFailureRoutineFunctionPointer); W.printHex("DynamicValueRelocTableOffset", Conf->DynamicValueRelocTableOffset); W.printNumber("DynamicValueRelocTableSection", Conf->DynamicValueRelocTableSection); W.printHex("GuardRFVerifyStackPointerFunctionPointer", Conf->GuardRFVerifyStackPointerFunctionPointer); W.printHex("HotPatchTableOffset", Conf->HotPatchTableOffset); Tables.GuardIatTableVA = Conf->GuardAddressTakenIatEntryTable; Tables.GuardIatTableCount = Conf->GuardAddressTakenIatEntryCount; Tables.GuardLJmpTableVA = Conf->GuardLongJumpTargetTable; Tables.GuardLJmpTableCount = Conf->GuardLongJumpTargetCount; // Print the rest. (2019) if (Conf->Size < sizeof(T)) return; W.printHex("EnclaveConfigurationPointer", Conf->EnclaveConfigurationPointer); W.printHex("VolatileMetadataPointer", Conf->VolatileMetadataPointer); W.printHex("GuardEHContinuationTable", Conf->GuardEHContinuationTable); W.printNumber("GuardEHContinuationCount", Conf->GuardEHContinuationCount); Tables.GuardEHContTableVA = Conf->GuardEHContinuationTable; Tables.GuardEHContTableCount = Conf->GuardEHContinuationCount; } void COFFDumper::printBaseOfDataField(const pe32_header *Hdr) { W.printHex("BaseOfData", Hdr->BaseOfData); } void COFFDumper::printBaseOfDataField(const pe32plus_header *) {} void COFFDumper::printCodeViewDebugInfo() { // Print types first to build CVUDTNames, then print symbols. for (const SectionRef &S : Obj->sections()) { StringRef SectionName = unwrapOrError(Obj->getFileName(), S.getName()); // .debug$T is a standard CodeView type section, while .debug$P is the same // format but used for MSVC precompiled header object files. if (SectionName == ".debug$T" || SectionName == ".debug$P") printCodeViewTypeSection(SectionName, S); } for (const SectionRef &S : Obj->sections()) { StringRef SectionName = unwrapOrError(Obj->getFileName(), S.getName()); if (SectionName == ".debug$S") printCodeViewSymbolSection(SectionName, S); } } void COFFDumper::initializeFileAndStringTables(BinaryStreamReader &Reader) { while (Reader.bytesRemaining() > 0 && (!CVFileChecksumTable.valid() || !CVStringTable.valid())) { // The section consists of a number of subsection in the following format: // |SubSectionType|SubSectionSize|Contents...| uint32_t SubType, SubSectionSize; if (Error E = Reader.readInteger(SubType)) reportError(std::move(E), Obj->getFileName()); if (Error E = Reader.readInteger(SubSectionSize)) reportError(std::move(E), Obj->getFileName()); StringRef Contents; if (Error E = Reader.readFixedString(Contents, SubSectionSize)) reportError(std::move(E), Obj->getFileName()); BinaryStreamRef ST(Contents, support::little); switch (DebugSubsectionKind(SubType)) { case DebugSubsectionKind::FileChecksums: if (Error E = CVFileChecksumTable.initialize(ST)) reportError(std::move(E), Obj->getFileName()); break; case DebugSubsectionKind::StringTable: if (Error E = CVStringTable.initialize(ST)) reportError(std::move(E), Obj->getFileName()); break; default: break; } uint32_t PaddedSize = alignTo(SubSectionSize, 4); if (Error E = Reader.skip(PaddedSize - SubSectionSize)) reportError(std::move(E), Obj->getFileName()); } } void COFFDumper::printCodeViewSymbolSection(StringRef SectionName, const SectionRef &Section) { StringRef SectionContents = unwrapOrError(Obj->getFileName(), Section.getContents()); StringRef Data = SectionContents; SmallVector FunctionNames; StringMap FunctionLineTables; ListScope D(W, "CodeViewDebugInfo"); // Print the section to allow correlation with printSectionHeaders. W.printNumber("Section", SectionName, Obj->getSectionID(Section)); uint32_t Magic; if (Error E = consume(Data, Magic)) reportError(std::move(E), Obj->getFileName()); W.printHex("Magic", Magic); if (Magic != COFF::DEBUG_SECTION_MAGIC) reportError(errorCodeToError(object_error::parse_failed), Obj->getFileName()); BinaryStreamReader FSReader(Data, support::little); initializeFileAndStringTables(FSReader); // TODO: Convert this over to using ModuleSubstreamVisitor. while (!Data.empty()) { // The section consists of a number of subsection in the following format: // |SubSectionType|SubSectionSize|Contents...| uint32_t SubType, SubSectionSize; if (Error E = consume(Data, SubType)) reportError(std::move(E), Obj->getFileName()); if (Error E = consume(Data, SubSectionSize)) reportError(std::move(E), Obj->getFileName()); ListScope S(W, "Subsection"); // Dump the subsection as normal even if the ignore bit is set. if (SubType & SubsectionIgnoreFlag) { W.printHex("IgnoredSubsectionKind", SubType); SubType &= ~SubsectionIgnoreFlag; } W.printEnum("SubSectionType", SubType, makeArrayRef(SubSectionTypes)); W.printHex("SubSectionSize", SubSectionSize); // Get the contents of the subsection. if (SubSectionSize > Data.size()) return reportError(errorCodeToError(object_error::parse_failed), Obj->getFileName()); StringRef Contents = Data.substr(0, SubSectionSize); // Add SubSectionSize to the current offset and align that offset to find // the next subsection. size_t SectionOffset = Data.data() - SectionContents.data(); size_t NextOffset = SectionOffset + SubSectionSize; NextOffset = alignTo(NextOffset, 4); if (NextOffset > SectionContents.size()) return reportError(errorCodeToError(object_error::parse_failed), Obj->getFileName()); Data = SectionContents.drop_front(NextOffset); // Optionally print the subsection bytes in case our parsing gets confused // later. if (opts::CodeViewSubsectionBytes) printBinaryBlockWithRelocs("SubSectionContents", Section, SectionContents, Contents); switch (DebugSubsectionKind(SubType)) { case DebugSubsectionKind::Symbols: printCodeViewSymbolsSubsection(Contents, Section, SectionContents); break; case DebugSubsectionKind::InlineeLines: printCodeViewInlineeLines(Contents); break; case DebugSubsectionKind::FileChecksums: printCodeViewFileChecksums(Contents); break; case DebugSubsectionKind::Lines: { // Holds a PC to file:line table. Some data to parse this subsection is // stored in the other subsections, so just check sanity and store the // pointers for deferred processing. if (SubSectionSize < 12) { // There should be at least three words to store two function // relocations and size of the code. reportError(errorCodeToError(object_error::parse_failed), Obj->getFileName()); return; } StringRef LinkageName; if (std::error_code EC = resolveSymbolName(Obj->getCOFFSection(Section), SectionOffset, LinkageName)) reportError(errorCodeToError(EC), Obj->getFileName()); W.printString("LinkageName", LinkageName); if (FunctionLineTables.count(LinkageName) != 0) { // Saw debug info for this function already? reportError(errorCodeToError(object_error::parse_failed), Obj->getFileName()); return; } FunctionLineTables[LinkageName] = Contents; FunctionNames.push_back(LinkageName); break; } case DebugSubsectionKind::FrameData: { // First four bytes is a relocation against the function. BinaryStreamReader SR(Contents, llvm::support::little); DebugFrameDataSubsectionRef FrameData; if (Error E = FrameData.initialize(SR)) reportError(std::move(E), Obj->getFileName()); StringRef LinkageName; if (std::error_code EC = resolveSymbolName(Obj->getCOFFSection(Section), SectionContents, FrameData.getRelocPtr(), LinkageName)) reportError(errorCodeToError(EC), Obj->getFileName()); W.printString("LinkageName", LinkageName); // To find the active frame description, search this array for the // smallest PC range that includes the current PC. for (const auto &FD : FrameData) { StringRef FrameFunc = unwrapOrError( Obj->getFileName(), CVStringTable.getString(FD.FrameFunc)); DictScope S(W, "FrameData"); W.printHex("RvaStart", FD.RvaStart); W.printHex("CodeSize", FD.CodeSize); W.printHex("LocalSize", FD.LocalSize); W.printHex("ParamsSize", FD.ParamsSize); W.printHex("MaxStackSize", FD.MaxStackSize); W.printHex("PrologSize", FD.PrologSize); W.printHex("SavedRegsSize", FD.SavedRegsSize); W.printFlags("Flags", FD.Flags, makeArrayRef(FrameDataFlags)); // The FrameFunc string is a small RPN program. It can be broken up into // statements that end in the '=' operator, which assigns the value on // the top of the stack to the previously pushed variable. Variables can // be temporary values ($T0) or physical registers ($esp). Print each // assignment on its own line to make these programs easier to read. { ListScope FFS(W, "FrameFunc"); while (!FrameFunc.empty()) { size_t EqOrEnd = FrameFunc.find('='); if (EqOrEnd == StringRef::npos) EqOrEnd = FrameFunc.size(); else ++EqOrEnd; StringRef Stmt = FrameFunc.substr(0, EqOrEnd); W.printString(Stmt); FrameFunc = FrameFunc.drop_front(EqOrEnd).trim(); } } } break; } // Do nothing for unrecognized subsections. default: break; } W.flush(); } // Dump the line tables now that we've read all the subsections and know all // the required information. for (unsigned I = 0, E = FunctionNames.size(); I != E; ++I) { StringRef Name = FunctionNames[I]; ListScope S(W, "FunctionLineTable"); W.printString("LinkageName", Name); BinaryStreamReader Reader(FunctionLineTables[Name], support::little); DebugLinesSubsectionRef LineInfo; if (Error E = LineInfo.initialize(Reader)) reportError(std::move(E), Obj->getFileName()); W.printHex("Flags", LineInfo.header()->Flags); W.printHex("CodeSize", LineInfo.header()->CodeSize); for (const auto &Entry : LineInfo) { ListScope S(W, "FilenameSegment"); printFileNameForOffset("Filename", Entry.NameIndex); uint32_t ColumnIndex = 0; for (const auto &Line : Entry.LineNumbers) { if (Line.Offset >= LineInfo.header()->CodeSize) { reportError(errorCodeToError(object_error::parse_failed), Obj->getFileName()); return; } std::string PC = std::string(formatv("+{0:X}", uint32_t(Line.Offset))); ListScope PCScope(W, PC); codeview::LineInfo LI(Line.Flags); if (LI.isAlwaysStepInto()) W.printString("StepInto", StringRef("Always")); else if (LI.isNeverStepInto()) W.printString("StepInto", StringRef("Never")); else W.printNumber("LineNumberStart", LI.getStartLine()); W.printNumber("LineNumberEndDelta", LI.getLineDelta()); W.printBoolean("IsStatement", LI.isStatement()); if (LineInfo.hasColumnInfo()) { W.printNumber("ColStart", Entry.Columns[ColumnIndex].StartColumn); W.printNumber("ColEnd", Entry.Columns[ColumnIndex].EndColumn); ++ColumnIndex; } } } } } void COFFDumper::printCodeViewSymbolsSubsection(StringRef Subsection, const SectionRef &Section, StringRef SectionContents) { ArrayRef BinaryData(Subsection.bytes_begin(), Subsection.bytes_end()); auto CODD = std::make_unique(*this, Section, Obj, SectionContents); CVSymbolDumper CVSD(W, Types, CodeViewContainer::ObjectFile, std::move(CODD), CompilationCPUType, opts::CodeViewSubsectionBytes); CVSymbolArray Symbols; BinaryStreamReader Reader(BinaryData, llvm::support::little); if (Error E = Reader.readArray(Symbols, Reader.getLength())) { W.flush(); reportError(std::move(E), Obj->getFileName()); } if (Error E = CVSD.dump(Symbols)) { W.flush(); reportError(std::move(E), Obj->getFileName()); } CompilationCPUType = CVSD.getCompilationCPUType(); W.flush(); } void COFFDumper::printCodeViewFileChecksums(StringRef Subsection) { BinaryStreamRef Stream(Subsection, llvm::support::little); DebugChecksumsSubsectionRef Checksums; if (Error E = Checksums.initialize(Stream)) reportError(std::move(E), Obj->getFileName()); for (auto &FC : Checksums) { DictScope S(W, "FileChecksum"); StringRef Filename = unwrapOrError( Obj->getFileName(), CVStringTable.getString(FC.FileNameOffset)); W.printHex("Filename", Filename, FC.FileNameOffset); W.printHex("ChecksumSize", FC.Checksum.size()); W.printEnum("ChecksumKind", uint8_t(FC.Kind), makeArrayRef(FileChecksumKindNames)); W.printBinary("ChecksumBytes", FC.Checksum); } } void COFFDumper::printCodeViewInlineeLines(StringRef Subsection) { BinaryStreamReader SR(Subsection, llvm::support::little); DebugInlineeLinesSubsectionRef Lines; if (Error E = Lines.initialize(SR)) reportError(std::move(E), Obj->getFileName()); for (auto &Line : Lines) { DictScope S(W, "InlineeSourceLine"); printTypeIndex("Inlinee", Line.Header->Inlinee); printFileNameForOffset("FileID", Line.Header->FileID); W.printNumber("SourceLineNum", Line.Header->SourceLineNum); if (Lines.hasExtraFiles()) { W.printNumber("ExtraFileCount", Line.ExtraFiles.size()); ListScope ExtraFiles(W, "ExtraFiles"); for (const auto &FID : Line.ExtraFiles) { printFileNameForOffset("FileID", FID); } } } } StringRef COFFDumper::getFileNameForFileOffset(uint32_t FileOffset) { // The file checksum subsection should precede all references to it. if (!CVFileChecksumTable.valid() || !CVStringTable.valid()) reportError(errorCodeToError(object_error::parse_failed), Obj->getFileName()); auto Iter = CVFileChecksumTable.getArray().at(FileOffset); // Check if the file checksum table offset is valid. if (Iter == CVFileChecksumTable.end()) reportError(errorCodeToError(object_error::parse_failed), Obj->getFileName()); return unwrapOrError(Obj->getFileName(), CVStringTable.getString(Iter->FileNameOffset)); } void COFFDumper::printFileNameForOffset(StringRef Label, uint32_t FileOffset) { W.printHex(Label, getFileNameForFileOffset(FileOffset), FileOffset); } void COFFDumper::mergeCodeViewTypes(MergingTypeTableBuilder &CVIDs, MergingTypeTableBuilder &CVTypes, GlobalTypeTableBuilder &GlobalCVIDs, GlobalTypeTableBuilder &GlobalCVTypes, bool GHash) { for (const SectionRef &S : Obj->sections()) { StringRef SectionName = unwrapOrError(Obj->getFileName(), S.getName()); if (SectionName == ".debug$T") { StringRef Data = unwrapOrError(Obj->getFileName(), S.getContents()); uint32_t Magic; if (Error E = consume(Data, Magic)) reportError(std::move(E), Obj->getFileName()); if (Magic != 4) reportError(errorCodeToError(object_error::parse_failed), Obj->getFileName()); CVTypeArray Types; BinaryStreamReader Reader(Data, llvm::support::little); if (auto EC = Reader.readArray(Types, Reader.getLength())) { consumeError(std::move(EC)); W.flush(); reportError(errorCodeToError(object_error::parse_failed), Obj->getFileName()); } SmallVector SourceToDest; Optional PCHSignature; if (GHash) { std::vector Hashes = GloballyHashedType::hashTypes(Types); if (Error E = mergeTypeAndIdRecords(GlobalCVIDs, GlobalCVTypes, SourceToDest, Types, Hashes, PCHSignature)) return reportError(std::move(E), Obj->getFileName()); } else { if (Error E = mergeTypeAndIdRecords(CVIDs, CVTypes, SourceToDest, Types, PCHSignature)) return reportError(std::move(E), Obj->getFileName()); } } } } void COFFDumper::printCodeViewTypeSection(StringRef SectionName, const SectionRef &Section) { ListScope D(W, "CodeViewTypes"); W.printNumber("Section", SectionName, Obj->getSectionID(Section)); StringRef Data = unwrapOrError(Obj->getFileName(), Section.getContents()); if (opts::CodeViewSubsectionBytes) W.printBinaryBlock("Data", Data); uint32_t Magic; if (Error E = consume(Data, Magic)) reportError(std::move(E), Obj->getFileName()); W.printHex("Magic", Magic); if (Magic != COFF::DEBUG_SECTION_MAGIC) reportError(errorCodeToError(object_error::parse_failed), Obj->getFileName()); Types.reset(Data, 100); TypeDumpVisitor TDV(Types, &W, opts::CodeViewSubsectionBytes); if (Error E = codeview::visitTypeStream(Types, TDV)) reportError(std::move(E), Obj->getFileName()); W.flush(); } void COFFDumper::printSectionHeaders() { ListScope SectionsD(W, "Sections"); int SectionNumber = 0; for (const SectionRef &Sec : Obj->sections()) { ++SectionNumber; const coff_section *Section = Obj->getCOFFSection(Sec); StringRef Name = unwrapOrError(Obj->getFileName(), Sec.getName()); DictScope D(W, "Section"); W.printNumber("Number", SectionNumber); W.printBinary("Name", Name, Section->Name); W.printHex ("VirtualSize", Section->VirtualSize); W.printHex ("VirtualAddress", Section->VirtualAddress); W.printNumber("RawDataSize", Section->SizeOfRawData); W.printHex ("PointerToRawData", Section->PointerToRawData); W.printHex ("PointerToRelocations", Section->PointerToRelocations); W.printHex ("PointerToLineNumbers", Section->PointerToLinenumbers); W.printNumber("RelocationCount", Section->NumberOfRelocations); W.printNumber("LineNumberCount", Section->NumberOfLinenumbers); W.printFlags ("Characteristics", Section->Characteristics, makeArrayRef(ImageSectionCharacteristics), COFF::SectionCharacteristics(0x00F00000)); if (opts::SectionRelocations) { ListScope D(W, "Relocations"); for (const RelocationRef &Reloc : Sec.relocations()) printRelocation(Sec, Reloc); } if (opts::SectionSymbols) { ListScope D(W, "Symbols"); for (const SymbolRef &Symbol : Obj->symbols()) { if (!Sec.containsSymbol(Symbol)) continue; printSymbol(Symbol); } } if (opts::SectionData && !(Section->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA)) { StringRef Data = unwrapOrError(Obj->getFileName(), Sec.getContents()); W.printBinaryBlock("SectionData", Data); } } } void COFFDumper::printRelocations() { ListScope D(W, "Relocations"); int SectionNumber = 0; for (const SectionRef &Section : Obj->sections()) { ++SectionNumber; StringRef Name = unwrapOrError(Obj->getFileName(), Section.getName()); bool PrintedGroup = false; for (const RelocationRef &Reloc : Section.relocations()) { if (!PrintedGroup) { W.startLine() << "Section (" << SectionNumber << ") " << Name << " {\n"; W.indent(); PrintedGroup = true; } printRelocation(Section, Reloc); } if (PrintedGroup) { W.unindent(); W.startLine() << "}\n"; } } } void COFFDumper::printRelocation(const SectionRef &Section, const RelocationRef &Reloc, uint64_t Bias) { uint64_t Offset = Reloc.getOffset() - Bias; uint64_t RelocType = Reloc.getType(); SmallString<32> RelocName; StringRef SymbolName; Reloc.getTypeName(RelocName); symbol_iterator Symbol = Reloc.getSymbol(); int64_t SymbolIndex = -1; if (Symbol != Obj->symbol_end()) { Expected SymbolNameOrErr = Symbol->getName(); if (!SymbolNameOrErr) reportError(SymbolNameOrErr.takeError(), Obj->getFileName()); SymbolName = *SymbolNameOrErr; SymbolIndex = Obj->getSymbolIndex(Obj->getCOFFSymbol(*Symbol)); } if (opts::ExpandRelocs) { DictScope Group(W, "Relocation"); W.printHex("Offset", Offset); W.printNumber("Type", RelocName, RelocType); W.printString("Symbol", SymbolName.empty() ? "-" : SymbolName); W.printNumber("SymbolIndex", SymbolIndex); } else { raw_ostream& OS = W.startLine(); OS << W.hex(Offset) << " " << RelocName << " " << (SymbolName.empty() ? "-" : SymbolName) << " (" << SymbolIndex << ")" << "\n"; } } void COFFDumper::printSymbols() { ListScope Group(W, "Symbols"); for (const SymbolRef &Symbol : Obj->symbols()) printSymbol(Symbol); } void COFFDumper::printDynamicSymbols() { ListScope Group(W, "DynamicSymbols"); } static Expected getSectionName(const llvm::object::COFFObjectFile *Obj, int32_t SectionNumber, const coff_section *Section) { if (Section) return Obj->getSectionName(Section); if (SectionNumber == llvm::COFF::IMAGE_SYM_DEBUG) return StringRef("IMAGE_SYM_DEBUG"); if (SectionNumber == llvm::COFF::IMAGE_SYM_ABSOLUTE) return StringRef("IMAGE_SYM_ABSOLUTE"); if (SectionNumber == llvm::COFF::IMAGE_SYM_UNDEFINED) return StringRef("IMAGE_SYM_UNDEFINED"); return StringRef(""); } void COFFDumper::printSymbol(const SymbolRef &Sym) { DictScope D(W, "Symbol"); COFFSymbolRef Symbol = Obj->getCOFFSymbol(Sym); Expected SecOrErr = Obj->getSection(Symbol.getSectionNumber()); if (!SecOrErr) { W.startLine() << "Invalid section number: " << Symbol.getSectionNumber() << "\n"; W.flush(); consumeError(SecOrErr.takeError()); return; } const coff_section *Section = *SecOrErr; StringRef SymbolName; if (Expected SymNameOrErr = Obj->getSymbolName(Symbol)) SymbolName = *SymNameOrErr; StringRef SectionName; if (Expected SecNameOrErr = getSectionName(Obj, Symbol.getSectionNumber(), Section)) SectionName = *SecNameOrErr; W.printString("Name", SymbolName); W.printNumber("Value", Symbol.getValue()); W.printNumber("Section", SectionName, Symbol.getSectionNumber()); W.printEnum ("BaseType", Symbol.getBaseType(), makeArrayRef(ImageSymType)); W.printEnum ("ComplexType", Symbol.getComplexType(), makeArrayRef(ImageSymDType)); W.printEnum ("StorageClass", Symbol.getStorageClass(), makeArrayRef(ImageSymClass)); W.printNumber("AuxSymbolCount", Symbol.getNumberOfAuxSymbols()); for (uint8_t I = 0; I < Symbol.getNumberOfAuxSymbols(); ++I) { if (Symbol.isFunctionDefinition()) { const coff_aux_function_definition *Aux; if (std::error_code EC = getSymbolAuxData(Obj, Symbol, I, Aux)) reportError(errorCodeToError(EC), Obj->getFileName()); DictScope AS(W, "AuxFunctionDef"); W.printNumber("TagIndex", Aux->TagIndex); W.printNumber("TotalSize", Aux->TotalSize); W.printHex("PointerToLineNumber", Aux->PointerToLinenumber); W.printHex("PointerToNextFunction", Aux->PointerToNextFunction); } else if (Symbol.isAnyUndefined()) { const coff_aux_weak_external *Aux; if (std::error_code EC = getSymbolAuxData(Obj, Symbol, I, Aux)) reportError(errorCodeToError(EC), Obj->getFileName()); DictScope AS(W, "AuxWeakExternal"); W.printNumber("Linked", getSymbolName(Aux->TagIndex), Aux->TagIndex); W.printEnum ("Search", Aux->Characteristics, makeArrayRef(WeakExternalCharacteristics)); } else if (Symbol.isFileRecord()) { const char *FileName; if (std::error_code EC = getSymbolAuxData(Obj, Symbol, I, FileName)) reportError(errorCodeToError(EC), Obj->getFileName()); DictScope AS(W, "AuxFileRecord"); StringRef Name(FileName, Symbol.getNumberOfAuxSymbols() * Obj->getSymbolTableEntrySize()); W.printString("FileName", Name.rtrim(StringRef("\0", 1))); break; } else if (Symbol.isSectionDefinition()) { const coff_aux_section_definition *Aux; if (std::error_code EC = getSymbolAuxData(Obj, Symbol, I, Aux)) reportError(errorCodeToError(EC), Obj->getFileName()); int32_t AuxNumber = Aux->getNumber(Symbol.isBigObj()); DictScope AS(W, "AuxSectionDef"); W.printNumber("Length", Aux->Length); W.printNumber("RelocationCount", Aux->NumberOfRelocations); W.printNumber("LineNumberCount", Aux->NumberOfLinenumbers); W.printHex("Checksum", Aux->CheckSum); W.printNumber("Number", AuxNumber); W.printEnum("Selection", Aux->Selection, makeArrayRef(ImageCOMDATSelect)); if (Section && Section->Characteristics & COFF::IMAGE_SCN_LNK_COMDAT && Aux->Selection == COFF::IMAGE_COMDAT_SELECT_ASSOCIATIVE) { Expected Assoc = Obj->getSection(AuxNumber); if (!Assoc) reportError(Assoc.takeError(), Obj->getFileName()); Expected AssocName = getSectionName(Obj, AuxNumber, *Assoc); if (!AssocName) reportError(AssocName.takeError(), Obj->getFileName()); W.printNumber("AssocSection", *AssocName, AuxNumber); } } else if (Symbol.isCLRToken()) { const coff_aux_clr_token *Aux; if (std::error_code EC = getSymbolAuxData(Obj, Symbol, I, Aux)) reportError(errorCodeToError(EC), Obj->getFileName()); DictScope AS(W, "AuxCLRToken"); W.printNumber("AuxType", Aux->AuxType); W.printNumber("Reserved", Aux->Reserved); W.printNumber("SymbolTableIndex", getSymbolName(Aux->SymbolTableIndex), Aux->SymbolTableIndex); } else { W.startLine() << "\n"; } } } void COFFDumper::printUnwindInfo() { ListScope D(W, "UnwindInformation"); switch (Obj->getMachine()) { case COFF::IMAGE_FILE_MACHINE_AMD64: { Win64EH::Dumper Dumper(W); Win64EH::Dumper::SymbolResolver Resolver = [](const object::coff_section *Section, uint64_t Offset, SymbolRef &Symbol, void *user_data) -> std::error_code { COFFDumper *Dumper = reinterpret_cast(user_data); return Dumper->resolveSymbol(Section, Offset, Symbol); }; Win64EH::Dumper::Context Ctx(*Obj, Resolver, this); Dumper.printData(Ctx); break; } case COFF::IMAGE_FILE_MACHINE_ARM64: case COFF::IMAGE_FILE_MACHINE_ARMNT: { ARM::WinEH::Decoder Decoder(W, Obj->getMachine() == COFF::IMAGE_FILE_MACHINE_ARM64); // TODO Propagate the error. consumeError(Decoder.dumpProcedureData(*Obj)); break; } default: W.printEnum("unsupported Image Machine", Obj->getMachine(), makeArrayRef(ImageFileMachineType)); break; } } void COFFDumper::printNeededLibraries() { ListScope D(W, "NeededLibraries"); using LibsTy = std::vector; LibsTy Libs; for (const ImportDirectoryEntryRef &DirRef : Obj->import_directories()) { StringRef Name; if (!DirRef.getName(Name)) Libs.push_back(Name); } llvm::stable_sort(Libs); for (const auto &L : Libs) { W.startLine() << L << "\n"; } } void COFFDumper::printImportedSymbols( iterator_range Range) { for (const ImportedSymbolRef &I : Range) { StringRef Sym; if (Error E = I.getSymbolName(Sym)) reportError(std::move(E), Obj->getFileName()); uint16_t Ordinal; if (Error E = I.getOrdinal(Ordinal)) reportError(std::move(E), Obj->getFileName()); W.printNumber("Symbol", Sym, Ordinal); } } void COFFDumper::printDelayImportedSymbols( const DelayImportDirectoryEntryRef &I, iterator_range Range) { int Index = 0; for (const ImportedSymbolRef &S : Range) { DictScope Import(W, "Import"); StringRef Sym; if (Error E = S.getSymbolName(Sym)) reportError(std::move(E), Obj->getFileName()); uint16_t Ordinal; if (Error E = S.getOrdinal(Ordinal)) reportError(std::move(E), Obj->getFileName()); W.printNumber("Symbol", Sym, Ordinal); uint64_t Addr; if (Error E = I.getImportAddress(Index++, Addr)) reportError(std::move(E), Obj->getFileName()); W.printHex("Address", Addr); } } void COFFDumper::printCOFFImports() { // Regular imports for (const ImportDirectoryEntryRef &I : Obj->import_directories()) { DictScope Import(W, "Import"); StringRef Name; if (Error E = I.getName(Name)) reportError(std::move(E), Obj->getFileName()); W.printString("Name", Name); uint32_t ILTAddr; if (Error E = I.getImportLookupTableRVA(ILTAddr)) reportError(std::move(E), Obj->getFileName()); W.printHex("ImportLookupTableRVA", ILTAddr); uint32_t IATAddr; if (Error E = I.getImportAddressTableRVA(IATAddr)) reportError(std::move(E), Obj->getFileName()); W.printHex("ImportAddressTableRVA", IATAddr); // The import lookup table can be missing with certain older linkers, so // fall back to the import address table in that case. if (ILTAddr) printImportedSymbols(I.lookup_table_symbols()); else printImportedSymbols(I.imported_symbols()); } // Delay imports for (const DelayImportDirectoryEntryRef &I : Obj->delay_import_directories()) { DictScope Import(W, "DelayImport"); StringRef Name; if (Error E = I.getName(Name)) reportError(std::move(E), Obj->getFileName()); W.printString("Name", Name); const delay_import_directory_table_entry *Table; if (Error E = I.getDelayImportTable(Table)) reportError(std::move(E), Obj->getFileName()); W.printHex("Attributes", Table->Attributes); W.printHex("ModuleHandle", Table->ModuleHandle); W.printHex("ImportAddressTable", Table->DelayImportAddressTable); W.printHex("ImportNameTable", Table->DelayImportNameTable); W.printHex("BoundDelayImportTable", Table->BoundDelayImportTable); W.printHex("UnloadDelayImportTable", Table->UnloadDelayImportTable); printDelayImportedSymbols(I, I.imported_symbols()); } } void COFFDumper::printCOFFExports() { for (const ExportDirectoryEntryRef &Exp : Obj->export_directories()) { DictScope Export(W, "Export"); StringRef Name; uint32_t Ordinal, RVA; if (Error E = Exp.getSymbolName(Name)) reportError(std::move(E), Obj->getFileName()); if (Error E = Exp.getOrdinal(Ordinal)) reportError(std::move(E), Obj->getFileName()); if (Error E = Exp.getExportRVA(RVA)) reportError(std::move(E), Obj->getFileName()); W.printNumber("Ordinal", Ordinal); W.printString("Name", Name); W.printHex("RVA", RVA); } } void COFFDumper::printCOFFDirectives() { for (const SectionRef &Section : Obj->sections()) { StringRef Name = unwrapOrError(Obj->getFileName(), Section.getName()); if (Name != ".drectve") continue; StringRef Contents = unwrapOrError(Obj->getFileName(), Section.getContents()); W.printString("Directive(s)", Contents); } } static std::string getBaseRelocTypeName(uint8_t Type) { switch (Type) { case COFF::IMAGE_REL_BASED_ABSOLUTE: return "ABSOLUTE"; case COFF::IMAGE_REL_BASED_HIGH: return "HIGH"; case COFF::IMAGE_REL_BASED_LOW: return "LOW"; case COFF::IMAGE_REL_BASED_HIGHLOW: return "HIGHLOW"; case COFF::IMAGE_REL_BASED_HIGHADJ: return "HIGHADJ"; case COFF::IMAGE_REL_BASED_ARM_MOV32T: return "ARM_MOV32(T)"; case COFF::IMAGE_REL_BASED_DIR64: return "DIR64"; default: return "unknown (" + llvm::utostr(Type) + ")"; } } void COFFDumper::printCOFFBaseReloc() { ListScope D(W, "BaseReloc"); for (const BaseRelocRef &I : Obj->base_relocs()) { uint8_t Type; uint32_t RVA; if (Error E = I.getRVA(RVA)) reportError(std::move(E), Obj->getFileName()); if (Error E = I.getType(Type)) reportError(std::move(E), Obj->getFileName()); DictScope Import(W, "Entry"); W.printString("Type", getBaseRelocTypeName(Type)); W.printHex("Address", RVA); } } void COFFDumper::printCOFFResources() { ListScope ResourcesD(W, "Resources"); for (const SectionRef &S : Obj->sections()) { StringRef Name = unwrapOrError(Obj->getFileName(), S.getName()); if (!Name.startswith(".rsrc")) continue; StringRef Ref = unwrapOrError(Obj->getFileName(), S.getContents()); if ((Name == ".rsrc") || (Name == ".rsrc$01")) { ResourceSectionRef RSF; Error E = RSF.load(Obj, S); if (E) reportError(std::move(E), Obj->getFileName()); auto &BaseTable = unwrapOrError(Obj->getFileName(), RSF.getBaseTable()); W.printNumber("Total Number of Resources", countTotalTableEntries(RSF, BaseTable, "Type")); W.printHex("Base Table Address", Obj->getCOFFSection(S)->PointerToRawData); W.startLine() << "\n"; printResourceDirectoryTable(RSF, BaseTable, "Type"); } if (opts::SectionData) W.printBinaryBlock(Name.str() + " Data", Ref); } } uint32_t COFFDumper::countTotalTableEntries(ResourceSectionRef RSF, const coff_resource_dir_table &Table, StringRef Level) { uint32_t TotalEntries = 0; for (int i = 0; i < Table.NumberOfNameEntries + Table.NumberOfIDEntries; i++) { auto Entry = unwrapOrError(Obj->getFileName(), RSF.getTableEntry(Table, i)); if (Entry.Offset.isSubDir()) { StringRef NextLevel; if (Level == "Name") NextLevel = "Language"; else NextLevel = "Name"; auto &NextTable = unwrapOrError(Obj->getFileName(), RSF.getEntrySubDir(Entry)); TotalEntries += countTotalTableEntries(RSF, NextTable, NextLevel); } else { TotalEntries += 1; } } return TotalEntries; } void COFFDumper::printResourceDirectoryTable( ResourceSectionRef RSF, const coff_resource_dir_table &Table, StringRef Level) { W.printNumber("Number of String Entries", Table.NumberOfNameEntries); W.printNumber("Number of ID Entries", Table.NumberOfIDEntries); // Iterate through level in resource directory tree. for (int i = 0; i < Table.NumberOfNameEntries + Table.NumberOfIDEntries; i++) { auto Entry = unwrapOrError(Obj->getFileName(), RSF.getTableEntry(Table, i)); StringRef Name; SmallString<20> IDStr; raw_svector_ostream OS(IDStr); if (i < Table.NumberOfNameEntries) { ArrayRef RawEntryNameString = unwrapOrError(Obj->getFileName(), RSF.getEntryNameString(Entry)); std::vector EndianCorrectedNameString; if (llvm::sys::IsBigEndianHost) { EndianCorrectedNameString.resize(RawEntryNameString.size() + 1); std::copy(RawEntryNameString.begin(), RawEntryNameString.end(), EndianCorrectedNameString.begin() + 1); EndianCorrectedNameString[0] = UNI_UTF16_BYTE_ORDER_MARK_SWAPPED; RawEntryNameString = makeArrayRef(EndianCorrectedNameString); } std::string EntryNameString; if (!llvm::convertUTF16ToUTF8String(RawEntryNameString, EntryNameString)) reportError(errorCodeToError(object_error::parse_failed), Obj->getFileName()); OS << ": "; OS << EntryNameString; } else { if (Level == "Type") { OS << ": "; printResourceTypeName(Entry.Identifier.ID, OS); } else { OS << ": (ID " << Entry.Identifier.ID << ")"; } } Name = StringRef(IDStr); ListScope ResourceType(W, Level.str() + Name.str()); if (Entry.Offset.isSubDir()) { W.printHex("Table Offset", Entry.Offset.value()); StringRef NextLevel; if (Level == "Name") NextLevel = "Language"; else NextLevel = "Name"; auto &NextTable = unwrapOrError(Obj->getFileName(), RSF.getEntrySubDir(Entry)); printResourceDirectoryTable(RSF, NextTable, NextLevel); } else { W.printHex("Entry Offset", Entry.Offset.value()); char FormattedTime[20] = {}; time_t TDS = time_t(Table.TimeDateStamp); strftime(FormattedTime, 20, "%Y-%m-%d %H:%M:%S", gmtime(&TDS)); W.printHex("Time/Date Stamp", FormattedTime, Table.TimeDateStamp); W.printNumber("Major Version", Table.MajorVersion); W.printNumber("Minor Version", Table.MinorVersion); W.printNumber("Characteristics", Table.Characteristics); ListScope DataScope(W, "Data"); auto &DataEntry = unwrapOrError(Obj->getFileName(), RSF.getEntryData(Entry)); W.printHex("DataRVA", DataEntry.DataRVA); W.printNumber("DataSize", DataEntry.DataSize); W.printNumber("Codepage", DataEntry.Codepage); W.printNumber("Reserved", DataEntry.Reserved); StringRef Contents = unwrapOrError(Obj->getFileName(), RSF.getContents(DataEntry)); W.printBinaryBlock("Data", Contents); } } } void COFFDumper::printStackMap() const { SectionRef StackMapSection; for (auto Sec : Obj->sections()) { StringRef Name; if (Expected NameOrErr = Sec.getName()) Name = *NameOrErr; else consumeError(NameOrErr.takeError()); if (Name == ".llvm_stackmaps") { StackMapSection = Sec; break; } } if (StackMapSection == SectionRef()) return; StringRef StackMapContents = unwrapOrError(Obj->getFileName(), StackMapSection.getContents()); ArrayRef StackMapContentsArray = arrayRefFromStringRef(StackMapContents); if (Obj->isLittleEndian()) prettyPrintStackMap( W, StackMapParser(StackMapContentsArray)); else prettyPrintStackMap( W, StackMapParser(StackMapContentsArray)); } void COFFDumper::printAddrsig() { SectionRef AddrsigSection; for (auto Sec : Obj->sections()) { StringRef Name; if (Expected NameOrErr = Sec.getName()) Name = *NameOrErr; else consumeError(NameOrErr.takeError()); if (Name == ".llvm_addrsig") { AddrsigSection = Sec; break; } } if (AddrsigSection == SectionRef()) return; StringRef AddrsigContents = unwrapOrError(Obj->getFileName(), AddrsigSection.getContents()); ArrayRef AddrsigContentsArray(AddrsigContents.bytes_begin(), AddrsigContents.size()); ListScope L(W, "Addrsig"); const uint8_t *Cur = AddrsigContents.bytes_begin(); const uint8_t *End = AddrsigContents.bytes_end(); while (Cur != End) { unsigned Size; const char *Err; uint64_t SymIndex = decodeULEB128(Cur, &Size, End, &Err); if (Err) reportError(createError(Err), Obj->getFileName()); W.printNumber("Sym", getSymbolName(SymIndex), SymIndex); Cur += Size; } } void COFFDumper::printCGProfile() { SectionRef CGProfileSection; for (SectionRef Sec : Obj->sections()) { StringRef Name = unwrapOrError(Obj->getFileName(), Sec.getName()); if (Name == ".llvm.call-graph-profile") { CGProfileSection = Sec; break; } } if (CGProfileSection == SectionRef()) return; StringRef CGProfileContents = unwrapOrError(Obj->getFileName(), CGProfileSection.getContents()); BinaryStreamReader Reader(CGProfileContents, llvm::support::little); ListScope L(W, "CGProfile"); while (!Reader.empty()) { uint32_t FromIndex, ToIndex; uint64_t Count; if (Error Err = Reader.readInteger(FromIndex)) reportError(std::move(Err), Obj->getFileName()); if (Error Err = Reader.readInteger(ToIndex)) reportError(std::move(Err), Obj->getFileName()); if (Error Err = Reader.readInteger(Count)) reportError(std::move(Err), Obj->getFileName()); DictScope D(W, "CGProfileEntry"); W.printNumber("From", getSymbolName(FromIndex), FromIndex); W.printNumber("To", getSymbolName(ToIndex), ToIndex); W.printNumber("Weight", Count); } } StringRef COFFDumper::getSymbolName(uint32_t Index) { Expected Sym = Obj->getSymbol(Index); if (!Sym) reportError(Sym.takeError(), Obj->getFileName()); Expected SymName = Obj->getSymbolName(*Sym); if (!SymName) reportError(SymName.takeError(), Obj->getFileName()); return *SymName; } void llvm::dumpCodeViewMergedTypes(ScopedPrinter &Writer, ArrayRef> IpiRecords, ArrayRef> TpiRecords) { TypeTableCollection TpiTypes(TpiRecords); { ListScope S(Writer, "MergedTypeStream"); TypeDumpVisitor TDV(TpiTypes, &Writer, opts::CodeViewSubsectionBytes); if (Error Err = codeview::visitTypeStream(TpiTypes, TDV)) reportError(std::move(Err), ""); Writer.flush(); } // Flatten the id stream and print it next. The ID stream refers to names from // the type stream. TypeTableCollection IpiTypes(IpiRecords); { ListScope S(Writer, "MergedIDStream"); TypeDumpVisitor TDV(TpiTypes, &Writer, opts::CodeViewSubsectionBytes); TDV.setIpiTypes(IpiTypes); if (Error Err = codeview::visitTypeStream(IpiTypes, TDV)) reportError(std::move(Err), ""); Writer.flush(); } } void COFFDumper::printCOFFTLSDirectory() { if (Obj->is64()) printCOFFTLSDirectory(Obj->getTLSDirectory64()); else printCOFFTLSDirectory(Obj->getTLSDirectory32()); } template void COFFDumper::printCOFFTLSDirectory( const coff_tls_directory *TlsTable) { DictScope D(W, "TLSDirectory"); if (!TlsTable) return; W.printHex("StartAddressOfRawData", TlsTable->StartAddressOfRawData); W.printHex("EndAddressOfRawData", TlsTable->EndAddressOfRawData); W.printHex("AddressOfIndex", TlsTable->AddressOfIndex); W.printHex("AddressOfCallBacks", TlsTable->AddressOfCallBacks); W.printHex("SizeOfZeroFill", TlsTable->SizeOfZeroFill); W.printFlags("Characteristics", TlsTable->Characteristics, makeArrayRef(ImageSectionCharacteristics), COFF::SectionCharacteristics(COFF::IMAGE_SCN_ALIGN_MASK)); }