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llvm-mirror/tools/llvm-readobj/COFFDumper.cpp
Georgii Rymar af54a4ae5b [llvm-readobj/elf] - Add a testing for --stackmap and refine the implementation. 
Currently, we only test the `--stackmap` option here:
https://github.com/llvm/llvm-project/blob/master/llvm/test/Object/stackmap-dump.test
it uses a precompiled MachO binary currently and I've found no tests for this option for ELF.

The implementation also has issues. For example, it might assert on a wrong version
of the .llvm-stackmaps section. Or it might crash on an empty or truncated section.

This patch introduces a new tools/llvm-readobj/ELF test file as well as implements a few
basic checks to catch simple crashes/issues

It also eliminates `unwrapOrError` calls in `printStackMap()`.

Differential revision: https://reviews.llvm.org/D85208
2020-08-05 13:09:04 +03:00

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//===-- 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 "Error.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 GuardLJmpTableVA = 0;
uint64_t GuardLJmpTableCount = 0;
};
class COFFDumper : public ObjDumper {
public:
friend class COFFObjectDumpDelegate;
COFFDumper(const llvm::object::COFFObjectFile *Obj, ScopedPrinter &Writer)
: ObjDumper(Writer), 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 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 <class PEHeader> void printPEHeader(const PEHeader *Hdr);
void printBaseOfDataField(const pe32_header *Hdr);
void printBaseOfDataField(const pe32plus_header *Hdr);
template <typename T>
void printCOFFLoadConfig(const T *Conf, LoadConfigTables &Tables);
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 getTypeName(TypeIndex Ty);
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<imported_symbol_iterator> Range);
void printDelayImportedSymbols(
const DelayImportDirectoryEntryRef &I,
iterator_range<imported_symbol_iterator> Range);
typedef DenseMap<const coff_section*, std::vector<RelocationRef> > 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<uint8_t> 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<uint8_t> Block) override {
StringRef SBlock(reinterpret_cast<const char *>(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::error_code createCOFFDumper(const object::ObjectFile *Obj,
ScopedPrinter &Writer,
std::unique_ptr<ObjDumper> &Result) {
const COFFObjectFile *COFFObj = dyn_cast<COFFObjectFile>(Obj);
if (!COFFObj)
return readobj_error::unsupported_obj_file_format;
Result.reset(new COFFDumper(COFFObj, Writer));
return readobj_error::success;
}
} // 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 readobj_error::unknown_symbol;
Sym = *SymI;
return readobj_error::success;
}
// 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<StringRef> 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<const char *>(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<COFF::MachineTypes> 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<COFF::Characteristics> 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<COFF::WindowsSubsystem> 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<COFF::DLLCharacteristics> 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<COFF::ExtendedDLLCharacteristics>
PEExtendedDLLCharacteristics[] = {
LLVM_READOBJ_ENUM_ENT(COFF, IMAGE_DLL_CHARACTERISTICS_EX_CET_COMPAT),
};
static const EnumEntry<COFF::SectionCharacteristics>
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<COFF::SymbolBaseType> 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<COFF::SymbolComplexType> 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<COFF::SymbolStorageClass> 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<COFF::COMDATType> 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<COFF::DebugType> 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<COFF::WeakExternalCharacteristics>
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<uint32_t> 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<uint32_t> FrameDataFlags[] = {
LLVM_READOBJ_ENUM_ENT(FrameData, HasSEH),
LLVM_READOBJ_ENUM_ENT(FrameData, HasEH),
LLVM_READOBJ_ENUM_ENT(FrameData, IsFunctionStart),
};
static const EnumEntry<uint8_t> 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 <typename T>
static std::error_code getSymbolAuxData(const COFFObjectFile *Obj,
COFFSymbolRef Symbol,
uint8_t AuxSymbolIdx, const T *&Aux) {
ArrayRef<uint8_t> AuxData = Obj->getSymbolAuxData(Symbol);
AuxData = AuxData.slice(AuxSymbolIdx * Obj->getSymbolTableEntrySize());
Aux = reinterpret_cast<const T*>(AuxData.data());
return readobj_error::success;
}
void COFFDumper::cacheRelocations() {
if (RelocCached)
return;
RelocCached = true;
for (const SectionRef &S : Obj->sections()) {
const coff_section *Section = Obj->getCOFFSection(S);
for (const RelocationRef &Reloc : S.relocations())
RelocMap[Section].push_back(Reloc);
// 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<pe32_header>(PEHeader);
if (const pe32plus_header *PEPlusHeader = Obj->getPE32PlusHeader())
printPEHeader<pe32plus_header>(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 <class PEHeader>
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<uint8_t> 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<const ulittle32_t *>(I);
raw_ostream &OS = W.startLine();
OS << W.hex(Obj->getImageBase() + RVA);
if (PrintExtra)
PrintExtra(OS, reinterpret_cast<const uint8_t *>(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);
}
if (Tables.GuardFidTableVA) {
ListScope LS(W, "GuardFidTable");
if (Tables.GuardFlags & uint32_t(coff_guard_flags::FidTableHasFlags)) {
auto PrintGuardFlags = [](raw_ostream &OS, const uint8_t *Entry) {
uint8_t Flags = *reinterpret_cast<const uint8_t *>(Entry + 4);
if (Flags)
OS << " flags " << utohexstr(Flags);
};
printRVATable(Tables.GuardFidTableVA, Tables.GuardFidTableCount, 5,
PrintGuardFlags);
} else {
printRVATable(Tables.GuardFidTableVA, Tables.GuardFidTableCount, 4);
}
}
if (Tables.GuardLJmpTableVA) {
ListScope LS(W, "GuardLJmpTable");
printRVATable(Tables.GuardLJmpTableVA, Tables.GuardLJmpTableCount, 4);
}
}
template <typename T>
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 the rest. (2017)
if (Conf->Size < sizeof(T))
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.GuardLJmpTableVA = Conf->GuardLongJumpTargetTable;
Tables.GuardLJmpTableCount = Conf->GuardLongJumpTargetCount;
}
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<StringRef, 10> FunctionNames;
StringMap<StringRef> 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<uint8_t> BinaryData(Subsection.bytes_begin(),
Subsection.bytes_end());
auto CODD = std::make_unique<COFFObjectDumpDelegate>(*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<TypeIndex, 128> SourceToDest;
Optional<uint32_t> PCHSignature;
if (GHash) {
std::vector<GloballyHashedType> 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<StringRef> 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<StringRef>
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<const coff_section *> 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<StringRef> SymNameOrErr = Obj->getSymbolName(Symbol))
SymbolName = *SymNameOrErr;
StringRef SectionName;
if (Expected<StringRef> 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<const coff_section *> Assoc = Obj->getSection(AuxNumber);
if (!Assoc)
reportError(Assoc.takeError(), Obj->getFileName());
Expected<StringRef> 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() << "<unhandled auxiliary record>\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<COFFDumper *>(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<StringRef>;
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<imported_symbol_iterator> 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<imported_symbol_iterator> 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<UTF16> RawEntryNameString =
unwrapOrError(Obj->getFileName(), RSF.getEntryNameString(Entry));
std::vector<UTF16> 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<StringRef> 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<uint8_t> StackMapContentsArray =
arrayRefFromStringRef(StackMapContents);
if (Obj->isLittleEndian())
prettyPrintStackMap(
W, StackMapParser<support::little>(StackMapContentsArray));
else
prettyPrintStackMap(
W, StackMapParser<support::big>(StackMapContentsArray));
}
void COFFDumper::printAddrsig() {
SectionRef AddrsigSection;
for (auto Sec : Obj->sections()) {
StringRef Name;
if (Expected<StringRef> 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<uint8_t> 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<COFFSymbolRef> Sym = Obj->getSymbol(Index);
if (!Sym)
reportError(Sym.takeError(), Obj->getFileName());
Expected<StringRef> SymName = Obj->getSymbolName(*Sym);
if (!SymName)
reportError(SymName.takeError(), Obj->getFileName());
return *SymName;
}
void llvm::dumpCodeViewMergedTypes(ScopedPrinter &Writer,
ArrayRef<ArrayRef<uint8_t>> IpiRecords,
ArrayRef<ArrayRef<uint8_t>> 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();
}
}
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