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llvm-6502/tools/llvm-readobj/COFFDumper.cpp
Rafael Espindola d60ced8e08 llvm-readobj: call exit(1) on error. 
llvm-readobj exists for testing llvm. We can safely stop the program
the first time we know the input in corrupted.

This is in preparation for making it handle a few more broken files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242656 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-20 03:23:55 +00:00

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//===-- COFFDumper.cpp - COFF-specific dumper -------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// \file
/// \brief This file implements the COFF-specific dumper for llvm-readobj.
///
//===----------------------------------------------------------------------===//
#include "llvm-readobj.h"
#include "ARMWinEHPrinter.h"
#include "Error.h"
#include "ObjDumper.h"
#include "StackMapPrinter.h"
#include "StreamWriter.h"
#include "Win64EHDumper.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Object/COFF.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/Support/COFF.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/DataExtractor.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/SourceMgr.h"
#include "llvm/Support/Win64EH.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
#include <cstring>
#include <system_error>
#include <time.h>
using namespace llvm;
using namespace llvm::object;
using namespace llvm::Win64EH;
namespace {
class COFFDumper : public ObjDumper {
public:
COFFDumper(const llvm::object::COFFObjectFile *Obj, StreamWriter& Writer)
: ObjDumper(Writer)
, Obj(Obj) {
}
void printFileHeaders() override;
void printSections() override;
void printRelocations() override;
void printSymbols() override;
void printDynamicSymbols() override;
void printUnwindInfo() override;
void printCOFFImports() override;
void printCOFFExports() override;
void printCOFFDirectives() override;
void printCOFFBaseReloc() override;
void printStackMap() const override;
private:
void printSymbol(const SymbolRef &Sym);
void printRelocation(const SectionRef &Section, const RelocationRef &Reloc);
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);
void printCodeViewDebugInfo(const SectionRef &Section);
void printCodeViewSymbolsSubsection(StringRef Subsection,
const SectionRef &Section,
uint32_t Offset);
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);
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;
StringRef CVFileIndexToStringOffsetTable;
StringRef CVStringTable;
};
} // namespace
namespace llvm {
std::error_code createCOFFDumper(const object::ObjectFile *Obj,
StreamWriter &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 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];
for (const auto &Relocation : Relocations) {
uint64_t RelocationOffset = Relocation.getOffset();
if (RelocationOffset == Offset) {
Sym = *Relocation.getSymbol();
return readobj_error::success;
}
}
return readobj_error::unknown_symbol;
}
// 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;
ErrorOr<StringRef> NameOrErr = Symbol.getName();
if (std::error_code EC = NameOrErr.getError())
return EC;
Name = *NameOrErr;
return std::error_code();
}
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_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_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::WeakExternalCharacteristics>
WeakExternalCharacteristics[] = {
{ "NoLibrary", COFF::IMAGE_WEAK_EXTERN_SEARCH_NOLIBRARY },
{ "Library" , COFF::IMAGE_WEAK_EXTERN_SEARCH_LIBRARY },
{ "Alias" , COFF::IMAGE_WEAK_EXTERN_SEARCH_ALIAS }
};
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.
std::sort(RelocMap[Section].begin(), RelocMap[Section].end(),
relocAddressLess);
}
}
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.
const pe32_header *PEHeader = nullptr;
error(Obj->getPE32Header(PEHeader));
if (PEHeader)
printPEHeader<pe32_header>(PEHeader);
const pe32plus_header *PEPlusHeader = nullptr;
error(Obj->getPE32PlusHeader(PEPlusHeader));
if (PEPlusHeader)
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.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::printBaseOfDataField(const pe32_header *Hdr) {
W.printHex("BaseOfData", Hdr->BaseOfData);
}
void COFFDumper::printBaseOfDataField(const pe32plus_header *) {}
void COFFDumper::printCodeViewDebugInfo(const SectionRef &Section) {
StringRef Data;
error(Section.getContents(Data));
SmallVector<StringRef, 10> FunctionNames;
StringMap<StringRef> FunctionLineTables;
ListScope D(W, "CodeViewDebugInfo");
{
// FIXME: Add more offset correctness checks.
DataExtractor DE(Data, true, 4);
uint32_t Offset = 0,
Magic = DE.getU32(&Offset);
W.printHex("Magic", Magic);
if (Magic != COFF::DEBUG_SECTION_MAGIC) {
error(object_error::parse_failed);
return;
}
bool Finished = false;
while (DE.isValidOffset(Offset) && !Finished) {
// The section consists of a number of subsection in the following format:
// |Type|PayloadSize|Payload...|
uint32_t SubSectionType = DE.getU32(&Offset),
PayloadSize = DE.getU32(&Offset);
ListScope S(W, "Subsection");
W.printHex("Type", SubSectionType);
W.printHex("PayloadSize", PayloadSize);
if (PayloadSize > Data.size() - Offset) {
error(object_error::parse_failed);
return;
}
StringRef Contents = Data.substr(Offset, PayloadSize);
if (opts::CodeViewSubsectionBytes) {
// Print the raw contents to simplify debugging if anything goes wrong
// afterwards.
W.printBinaryBlock("Contents", Contents);
}
switch (SubSectionType) {
case COFF::DEBUG_SYMBOL_SUBSECTION:
if (opts::SectionSymbols)
printCodeViewSymbolsSubsection(Contents, Section, Offset);
break;
case COFF::DEBUG_LINE_TABLE_SUBSECTION: {
// 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 (PayloadSize < 12) {
// There should be at least three words to store two function
// relocations and size of the code.
error(object_error::parse_failed);
return;
}
StringRef FunctionName;
error(resolveSymbolName(Obj->getCOFFSection(Section), Offset,
FunctionName));
W.printString("FunctionName", FunctionName);
if (FunctionLineTables.count(FunctionName) != 0) {
// Saw debug info for this function already?
error(object_error::parse_failed);
return;
}
FunctionLineTables[FunctionName] = Contents;
FunctionNames.push_back(FunctionName);
break;
}
case COFF::DEBUG_STRING_TABLE_SUBSECTION:
if (PayloadSize == 0 || CVStringTable.data() != nullptr ||
Contents.back() != '\0') {
// Empty or duplicate or non-null-terminated subsection.
error(object_error::parse_failed);
return;
}
CVStringTable = Contents;
break;
case COFF::DEBUG_INDEX_SUBSECTION:
// Holds the translation table from file indices
// to offsets in the string table.
if (PayloadSize == 0 ||
CVFileIndexToStringOffsetTable.data() != nullptr) {
// Empty or duplicate subsection.
error(object_error::parse_failed);
return;
}
CVFileIndexToStringOffsetTable = Contents;
break;
}
Offset += PayloadSize;
// Align the reading pointer by 4.
Offset += (-Offset) % 4;
}
}
// 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("FunctionName", Name);
DataExtractor DE(FunctionLineTables[Name], true, 4);
uint32_t Offset = 6; // Skip relocations.
uint16_t Flags = DE.getU16(&Offset);
W.printHex("Flags", Flags);
bool HasColumnInformation =
Flags & COFF::DEBUG_LINE_TABLES_HAVE_COLUMN_RECORDS;
uint32_t FunctionSize = DE.getU32(&Offset);
W.printHex("CodeSize", FunctionSize);
while (DE.isValidOffset(Offset)) {
// For each range of lines with the same filename, we have a segment
// in the line table. The filename string is accessed using double
// indirection to the string table subsection using the index subsection.
uint32_t OffsetInIndex = DE.getU32(&Offset),
SegmentLength = DE.getU32(&Offset),
FullSegmentSize = DE.getU32(&Offset);
if (FullSegmentSize !=
12 + 8 * SegmentLength +
(HasColumnInformation ? 4 * SegmentLength : 0)) {
error(object_error::parse_failed);
return;
}
uint32_t FilenameOffset;
{
DataExtractor SDE(CVFileIndexToStringOffsetTable, true, 4);
uint32_t OffsetInSDE = OffsetInIndex;
if (!SDE.isValidOffset(OffsetInSDE)) {
error(object_error::parse_failed);
return;
}
FilenameOffset = SDE.getU32(&OffsetInSDE);
}
if (FilenameOffset == 0 || FilenameOffset + 1 >= CVStringTable.size() ||
CVStringTable.data()[FilenameOffset - 1] != '\0') {
// Each string in an F3 subsection should be preceded by a null
// character.
error(object_error::parse_failed);
return;
}
StringRef Filename(CVStringTable.data() + FilenameOffset);
ListScope S(W, "FilenameSegment");
W.printString("Filename", Filename);
for (unsigned J = 0; J != SegmentLength && DE.isValidOffset(Offset);
++J) {
// Then go the (PC, LineNumber) pairs. The line number is stored in the
// least significant 31 bits of the respective word in the table.
uint32_t PC = DE.getU32(&Offset),
LineNumber = DE.getU32(&Offset) & 0x7fffffff;
if (PC >= FunctionSize) {
error(object_error::parse_failed);
return;
}
char Buffer[32];
format("+0x%X", PC).snprint(Buffer, 32);
W.printNumber(Buffer, LineNumber);
}
if (HasColumnInformation) {
for (unsigned J = 0; J != SegmentLength && DE.isValidOffset(Offset);
++J) {
uint16_t ColStart = DE.getU16(&Offset);
W.printNumber("ColStart", ColStart);
uint16_t ColEnd = DE.getU16(&Offset);
W.printNumber("ColEnd", ColEnd);
}
}
}
}
}
void COFFDumper::printCodeViewSymbolsSubsection(StringRef Subsection,
const SectionRef &Section,
uint32_t OffsetInSection) {
if (Subsection.size() == 0) {
error(object_error::parse_failed);
return;
}
DataExtractor DE(Subsection, true, 4);
uint32_t Offset = 0;
// Function-level subsections have "procedure start" and "procedure end"
// commands that should come in pairs and surround relevant info.
bool InFunctionScope = false;
while (DE.isValidOffset(Offset)) {
// Read subsection segments one by one.
uint16_t Size = DE.getU16(&Offset);
// The section size includes the size of the type identifier.
if (Size < 2 || !DE.isValidOffsetForDataOfSize(Offset, Size)) {
error(object_error::parse_failed);
return;
}
Size -= 2;
uint16_t Type = DE.getU16(&Offset);
switch (Type) {
case COFF::DEBUG_SYMBOL_TYPE_PROC_START: {
DictScope S(W, "ProcStart");
if (InFunctionScope || Size < 36) {
error(object_error::parse_failed);
return;
}
InFunctionScope = true;
// We're currently interested in a limited subset of fields in this
// segment, just ignore the rest of the fields for now.
uint8_t Unused[12];
DE.getU8(&Offset, Unused, 12);
uint32_t CodeSize = DE.getU32(&Offset);
DE.getU8(&Offset, Unused, 12);
StringRef SectionName;
error(resolveSymbolName(Obj->getCOFFSection(Section),
OffsetInSection + Offset, SectionName));
Offset += 4;
DE.getU8(&Offset, Unused, 3);
StringRef DisplayName = DE.getCStr(&Offset);
if (!DE.isValidOffset(Offset)) {
error(object_error::parse_failed);
return;
}
W.printString("DisplayName", DisplayName);
W.printString("Section", SectionName);
W.printHex("CodeSize", CodeSize);
break;
}
case COFF::DEBUG_SYMBOL_TYPE_PROC_END: {
W.startLine() << "ProcEnd\n";
if (!InFunctionScope || Size > 0) {
error(object_error::parse_failed);
return;
}
InFunctionScope = false;
break;
}
default: {
if (opts::CodeViewSubsectionBytes) {
ListScope S(W, "Record");
W.printHex("Size", Size);
W.printHex("Type", Type);
StringRef Contents = DE.getData().substr(Offset, Size);
W.printBinaryBlock("Contents", Contents);
}
Offset += Size;
break;
}
}
}
if (InFunctionScope)
error(object_error::parse_failed);
}
void COFFDumper::printSections() {
ListScope SectionsD(W, "Sections");
int SectionNumber = 0;
for (const SectionRef &Sec : Obj->sections()) {
++SectionNumber;
const coff_section *Section = Obj->getCOFFSection(Sec);
StringRef Name;
error(Sec.getName(Name));
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 (Name == ".debug$S" && opts::CodeView)
printCodeViewDebugInfo(Sec);
if (opts::SectionData &&
!(Section->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA)) {
StringRef Data;
error(Sec.getContents(Data));
W.printBinaryBlock("SectionData", Data);
}
}
}
void COFFDumper::printRelocations() {
ListScope D(W, "Relocations");
int SectionNumber = 0;
for (const SectionRef &Section : Obj->sections()) {
++SectionNumber;
StringRef Name;
error(Section.getName(Name));
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 Offset = Reloc.getOffset();
uint64_t RelocType = Reloc.getType();
SmallString<32> RelocName;
StringRef SymbolName;
Reloc.getTypeName(RelocName);
symbol_iterator Symbol = Reloc.getSymbol();
if (Symbol != Obj->symbol_end()) {
ErrorOr<StringRef> SymbolNameOrErr = Symbol->getName();
error(SymbolNameOrErr.getError());
SymbolName = *SymbolNameOrErr;
}
if (opts::ExpandRelocs) {
DictScope Group(W, "Relocation");
W.printHex("Offset", Offset);
W.printNumber("Type", RelocName, RelocType);
W.printString("Symbol", SymbolName.empty() ? "-" : SymbolName);
} else {
raw_ostream& OS = W.startLine();
OS << W.hex(Offset)
<< " " << RelocName
<< " " << (SymbolName.empty() ? "-" : SymbolName)
<< "\n";
}
}
void COFFDumper::printSymbols() {
ListScope Group(W, "Symbols");
for (const SymbolRef &Symbol : Obj->symbols())
printSymbol(Symbol);
}
void COFFDumper::printDynamicSymbols() { ListScope Group(W, "DynamicSymbols"); }
static ErrorOr<StringRef>
getSectionName(const llvm::object::COFFObjectFile *Obj, int32_t SectionNumber,
const coff_section *Section) {
if (Section) {
StringRef SectionName;
if (std::error_code EC = Obj->getSectionName(Section, SectionName))
return EC;
return SectionName;
}
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 = "";
ErrorOr<StringRef> Res =
getSectionName(Obj, Symbol.getSectionNumber(), Section);
if (Res)
SectionName = *Res;
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;
error(getSymbolAuxData(Obj, Symbol, I, Aux));
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;
error(getSymbolAuxData(Obj, Symbol, I, Aux));
ErrorOr<COFFSymbolRef> Linked = Obj->getSymbol(Aux->TagIndex);
StringRef LinkedName;
std::error_code EC = Linked.getError();
if (EC || (EC = Obj->getSymbolName(*Linked, LinkedName))) {
LinkedName = "";
error(EC);
}
DictScope AS(W, "AuxWeakExternal");
W.printNumber("Linked", LinkedName, Aux->TagIndex);
W.printEnum ("Search", Aux->Characteristics,
makeArrayRef(WeakExternalCharacteristics));
} else if (Symbol.isFileRecord()) {
const char *FileName;
error(getSymbolAuxData(Obj, Symbol, I, FileName));
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;
error(getSymbolAuxData(Obj, Symbol, I, Aux));
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 = "";
std::error_code EC = Obj->getSection(AuxNumber, Assoc);
ErrorOr<StringRef> Res = getSectionName(Obj, AuxNumber, Assoc);
if (Res)
AssocName = *Res;
if (!EC)
EC = Res.getError();
if (EC) {
AssocName = "";
error(EC);
}
W.printNumber("AssocSection", AssocName, AuxNumber);
}
} else if (Symbol.isCLRToken()) {
const coff_aux_clr_token *Aux;
error(getSymbolAuxData(Obj, Symbol, I, Aux));
ErrorOr<COFFSymbolRef> ReferredSym =
Obj->getSymbol(Aux->SymbolTableIndex);
StringRef ReferredName;
std::error_code EC = ReferredSym.getError();
if (EC || (EC = Obj->getSymbolName(*ReferredSym, ReferredName))) {
ReferredName = "";
error(EC);
}
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_ARMNT: {
ARM::WinEH::Decoder Decoder(W);
Decoder.dumpProcedureData(*Obj);
break;
}
default:
W.printEnum("unsupported Image Machine", Obj->getMachine(),
makeArrayRef(ImageFileMachineType));
break;
}
}
void COFFDumper::printImportedSymbols(
iterator_range<imported_symbol_iterator> Range) {
for (const ImportedSymbolRef &I : Range) {
StringRef Sym;
error(I.getSymbolName(Sym));
uint16_t Ordinal;
error(I.getOrdinal(Ordinal));
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;
error(S.getSymbolName(Sym));
uint16_t Ordinal;
error(S.getOrdinal(Ordinal));
W.printNumber("Symbol", Sym, Ordinal);
uint64_t Addr;
error(I.getImportAddress(Index++, Addr));
W.printHex("Address", Addr);
}
}
void COFFDumper::printCOFFImports() {
// Regular imports
for (const ImportDirectoryEntryRef &I : Obj->import_directories()) {
DictScope Import(W, "Import");
StringRef Name;
error(I.getName(Name));
W.printString("Name", Name);
uint32_t Addr;
error(I.getImportLookupTableRVA(Addr));
W.printHex("ImportLookupTableRVA", Addr);
error(I.getImportAddressTableRVA(Addr));
W.printHex("ImportAddressTableRVA", Addr);
printImportedSymbols(I.imported_symbols());
}
// Delay imports
for (const DelayImportDirectoryEntryRef &I : Obj->delay_import_directories()) {
DictScope Import(W, "DelayImport");
StringRef Name;
error(I.getName(Name));
W.printString("Name", Name);
const delay_import_directory_table_entry *Table;
error(I.getDelayImportTable(Table));
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;
error(E.getSymbolName(Name));
error(E.getOrdinal(Ordinal));
error(E.getExportRVA(RVA));
W.printNumber("Ordinal", Ordinal);
W.printString("Name", Name);
W.printHex("RVA", RVA);
}
}
void COFFDumper::printCOFFDirectives() {
for (const SectionRef &Section : Obj->sections()) {
StringRef Contents;
StringRef Name;
error(Section.getName(Name));
if (Name != ".drectve")
continue;
error(Section.getContents(Contents));
W.printString("Directive(s)", Contents);
}
}
static StringRef 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;
error(I.getRVA(RVA));
error(I.getType(Type));
DictScope Import(W, "Entry");
W.printString("Type", getBaseRelocTypeName(Type));
W.printHex("Address", RVA);
}
}
void COFFDumper::printStackMap() const {
object::SectionRef StackMapSection;
for (auto Sec : Obj->sections()) {
StringRef Name;
Sec.getName(Name);
if (Name == ".llvm_stackmaps") {
StackMapSection = Sec;
break;
}
}
if (StackMapSection == object::SectionRef())
return;
StringRef StackMapContents;
StackMapSection.getContents(StackMapContents);
ArrayRef<uint8_t> StackMapContentsArray(
reinterpret_cast<const uint8_t*>(StackMapContents.data()),
StackMapContents.size());
if (Obj->isLittleEndian())
prettyPrintStackMap(
llvm::outs(),
StackMapV1Parser<support::little>(StackMapContentsArray));
else
prettyPrintStackMap(llvm::outs(),
StackMapV1Parser<support::big>(StackMapContentsArray));
}
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