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llvm-mirror/tools/llvm-readobj/COFFDumper.cpp
Martin Storsjo 5e8195f9a7 [COFF] Add a ResourceSectionRef method for getting resource contents 
This allows llvm-readobj to print the contents of each resource
when printing resources from an object file or executable, like it
already does for plain .res files.

This requires providing the whole COFFObjectFile to ResourceSectionRef.

This supports both object files and executables. For executables,
the DataRVA field is used as is to look up the right section.

For object files, ideally we would need to complete linking of them
and fix up all relocations to know what the DataRVA field would end up
being. In practice, the only thing that makes sense for an RVA field
is an ADDR32NB relocation. Thus, find a relocation pointing at this
field, verify that it has the expected type, locate the symbol it
points at, look up the section the symbol points at, and read from the
right offset in that section.

This works both for GNU windres object files (which use one single
.rsrc section, with all relocations against the base of the .rsrc
section, with the original value of the DataRVA field being the
offset of the data from the beginning of the .rsrc section) and
cvtres object files (with two separate .rsrc$01 and .rsrc$02 sections,
and one symbol per data entry, with the original pre-relocated DataRVA
field being set to zero).

Differential Revision: https://reviews.llvm.org/D66820

llvm-svn: 370433
2019-08-30 06:55:49 +00:00

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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;
static inline Error createError(const Twine &Err) {
return make_error<StringError>(Err, object_error::parse_failed);
}
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;
private:
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::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 },
};
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;
if (Obj->getDataDirectory(Index, 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("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);
if (D.Type == COFF::IMAGE_DEBUG_TYPE_CODEVIEW) {
const codeview::DebugInfo *DebugInfo;
StringRef PDBFileName;
if (std::error_code EC = Obj->getDebugPDBInfo(&D, DebugInfo, PDBFileName))
reportError(errorCodeToError(EC), 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: Type values of 12 and 13 are commonly observed but are not in
// the documented type enum. Figure out what they mean.
ArrayRef<uint8_t> RawData;
if (std::error_code EC = Obj->getRvaAndSizeAsBytes(D.AddressOfRawData,
D.SizeOfData, RawData))
reportError(errorCodeToError(EC), Obj->getFileName());
W.printBinaryBlock("RawData", RawData);
}
}
}
void COFFDumper::printRVATable(uint64_t TableVA, uint64_t Count,
uint64_t EntrySize, PrintExtraCB PrintExtra) {
uintptr_t TableStart, TableEnd;
if (std::error_code EC = Obj->getVaPtr(TableVA, TableStart))
reportError(errorCodeToError(EC), Obj->getFileName());
if (std::error_code EC =
Obj->getVaPtr(TableVA + Count * EntrySize - 1, TableEnd))
reportError(errorCodeToError(EC), 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 = 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);
const coff_section *Section;
if (std::error_code EC = Obj->getSection(Symbol.getSectionNumber(), Section)) {
W.startLine() << "Invalid section number: " << EC.message() << "\n";
W.flush();
return;
}
StringRef SymbolName;
if (Obj->getSymbolName(Symbol, SymbolName))
SymbolName = "";
StringRef SectionName;
if (Expected<StringRef> NameOrErr =
getSectionName(Obj, Symbol.getSectionNumber(), Section))
SectionName = *NameOrErr;
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());
Expected<COFFSymbolRef> Linked = Obj->getSymbol(Aux->TagIndex);
if (!Linked)
reportError(Linked.takeError(), Obj->getFileName());
StringRef LinkedName;
if (std::error_code EC = Obj->getSymbolName(*Linked, LinkedName))
reportError(errorCodeToError(EC), Obj->getFileName());
DictScope AS(W, "AuxWeakExternal");
W.printNumber("Linked", LinkedName, 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) {
const coff_section *Assoc;
StringRef AssocName = "";
if (std::error_code EC = Obj->getSection(AuxNumber, Assoc))
reportError(errorCodeToError(EC), Obj->getFileName());
Expected<StringRef> Res = getSectionName(Obj, AuxNumber, Assoc);
if (!Res)
reportError(Res.takeError(), Obj->getFileName());
AssocName = *Res;
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());
Expected<COFFSymbolRef> ReferredSym =
Obj->getSymbol(Aux->SymbolTableIndex);
if (!ReferredSym)
reportError(ReferredSym.takeError(), Obj->getFileName());
StringRef ReferredName;
if (std::error_code EC = Obj->getSymbolName(*ReferredSym, ReferredName))
reportError(errorCodeToError(EC), Obj->getFileName());
DictScope AS(W, "AuxCLRToken");
W.printNumber("AuxType", Aux->AuxType);
W.printNumber("Reserved", Aux->Reserved);
W.printNumber("SymbolTableIndex", ReferredName, 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 (std::error_code EC = I.getSymbolName(Sym))
reportError(errorCodeToError(EC), Obj->getFileName());
uint16_t Ordinal;
if (std::error_code EC = I.getOrdinal(Ordinal))
reportError(errorCodeToError(EC), 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 (std::error_code EC = S.getSymbolName(Sym))
reportError(errorCodeToError(EC), Obj->getFileName());
uint16_t Ordinal;
if (std::error_code EC = S.getOrdinal(Ordinal))
reportError(errorCodeToError(EC), Obj->getFileName());
W.printNumber("Symbol", Sym, Ordinal);
uint64_t Addr;
if (std::error_code EC = I.getImportAddress(Index++, Addr))
reportError(errorCodeToError(EC), 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 (std::error_code EC = I.getName(Name))
reportError(errorCodeToError(EC), Obj->getFileName());
W.printString("Name", Name);
uint32_t ILTAddr;
if (std::error_code EC = I.getImportLookupTableRVA(ILTAddr))
reportError(errorCodeToError(EC), Obj->getFileName());
W.printHex("ImportLookupTableRVA", ILTAddr);
uint32_t IATAddr;
if (std::error_code EC = I.getImportAddressTableRVA(IATAddr))
reportError(errorCodeToError(EC), 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 (std::error_code EC = I.getName(Name))
reportError(errorCodeToError(EC), Obj->getFileName());
W.printString("Name", Name);
const delay_import_directory_table_entry *Table;
if (std::error_code EC = I.getDelayImportTable(Table))
reportError(errorCodeToError(EC), 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 &E : Obj->export_directories()) {
DictScope Export(W, "Export");
StringRef Name;
uint32_t Ordinal, RVA;
if (std::error_code EC = E.getSymbolName(Name))
reportError(errorCodeToError(EC), Obj->getFileName());
if (std::error_code EC = E.getOrdinal(Ordinal))
reportError(errorCodeToError(EC), Obj->getFileName());
if (std::error_code EC = E.getExportRVA(RVA))
reportError(errorCodeToError(EC), 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 (std::error_code EC = I.getRVA(RVA))
reportError(errorCodeToError(EC), Obj->getFileName());
if (std::error_code EC = I.getType(Type))
reportError(errorCodeToError(EC), 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 {
object::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 == object::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() {
object::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 == object::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());
Expected<COFFSymbolRef> Sym = Obj->getSymbol(SymIndex);
if (!Sym)
reportError(Sym.takeError(), Obj->getFileName());
StringRef SymName;
if (std::error_code EC = Obj->getSymbolName(*Sym, SymName))
reportError(errorCodeToError(EC), Obj->getFileName());
W.printNumber("Sym", SymName, SymIndex);
Cur += Size;
}
}
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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