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llvm-mirror/tools/llvm-readobj/COFFDumper.cpp
Saleem Abdulrasool a85c76778d Support: update DLLCharacteristics enumeration 
Add the new AppContainer characteristic which is import for Windows Store
(Metro) compatible applications.  Add the new Control Flow Guard flag to bring
the enumeration up to date with the current values as of Windows 8.1.

llvm-svn: 211855
2014-06-27 03:11:18 +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 "StreamWriter.h"
#include "Win64EHDumper.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/SmallString.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) {
cacheRelocations();
}
virtual void printFileHeaders() override;
virtual void printSections() override;
virtual void printRelocations() override;
virtual void printSymbols() override;
virtual void printDynamicSymbols() override;
virtual void printUnwindInfo() override;
private:
void printSymbol(const SymbolRef &Sym);
void printRelocation(const SectionRef &Section, const RelocationRef &Reloc);
void printDataDirectory(uint32_t Index, const std::string &FieldName);
template <class PEHeader> void printPEHeader(const PEHeader *Hdr);
void printBaseOfDataField(const pe32_header *Hdr);
void printBaseOfDataField(const pe32plus_header *Hdr);
void printCodeViewLineTables(const SectionRef &Section);
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);
typedef DenseMap<const coff_section*, std::vector<RelocationRef> > RelocMapTy;
const llvm::object::COFFObjectFile *Obj;
RelocMapTy RelocMap;
};
} // 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) {
const auto &Relocations = RelocMap[Section];
for (const auto &Relocation : Relocations) {
uint64_t RelocationOffset;
if (std::error_code EC = Relocation.getOffset(RelocationOffset))
return EC;
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;
if (std::error_code EC = Symbol.getName(Name))
return EC;
return object_error::success;
}
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,
const coff_symbol *Symbol,
const T *&Aux) {
ArrayRef<uint8_t> AuxData = Obj->getSymbolAuxData(Symbol);
Aux = reinterpret_cast<const T*>(AuxData.data());
return readobj_error::success;
}
void COFFDumper::cacheRelocations() {
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() {
// Print COFF header
const coff_file_header *COFFHeader = nullptr;
if (error(Obj->getCOFFHeader(COFFHeader)))
return;
time_t TDS = COFFHeader->TimeDateStamp;
char FormattedTime[20] = { };
strftime(FormattedTime, 20, "%Y-%m-%d %H:%M:%S", gmtime(&TDS));
{
DictScope D(W, "ImageFileHeader");
W.printEnum ("Machine", COFFHeader->Machine,
makeArrayRef(ImageFileMachineType));
W.printNumber("SectionCount", COFFHeader->NumberOfSections);
W.printHex ("TimeDateStamp", FormattedTime, COFFHeader->TimeDateStamp);
W.printHex ("PointerToSymbolTable", COFFHeader->PointerToSymbolTable);
W.printNumber("SymbolCount", COFFHeader->NumberOfSymbols);
W.printNumber("OptionalHeaderSize", COFFHeader->SizeOfOptionalHeader);
W.printFlags ("Characteristics", COFFHeader->Characteristics,
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;
if (error(Obj->getPE32Header(PEHeader)))
return;
if (PEHeader)
printPEHeader<pe32_header>(PEHeader);
const pe32plus_header *PEPlusHeader = nullptr;
if (error(Obj->getPE32PlusHeader(PEPlusHeader)))
return;
if (PEPlusHeader)
printPEHeader<pe32plus_header>(PEPlusHeader);
}
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 ("Subsystem", 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::printCodeViewLineTables(const SectionRef &Section) {
StringRef Data;
if (error(Section.getContents(Data)))
return;
SmallVector<StringRef, 10> FunctionNames;
StringMap<StringRef> FunctionLineTables;
StringRef FileIndexToStringOffsetTable;
StringRef StringTable;
ListScope D(W, "CodeViewLineTables");
{
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;
}
// Print the raw contents to simplify debugging if anything goes wrong
// afterwards.
StringRef Contents = Data.substr(Offset, PayloadSize);
W.printBinaryBlock("Contents", Contents);
switch (SubSectionType) {
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;
if (error(resolveSymbolName(Obj->getCOFFSection(Section), Offset,
FunctionName)))
return;
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 || StringTable.data() != nullptr ||
Contents.back() != '\0') {
// Empty or duplicate or non-null-terminated subsection.
error(object_error::parse_failed);
return;
}
StringTable = Contents;
break;
case COFF::DEBUG_INDEX_SUBSECTION:
// Holds the translation table from file indices
// to offsets in the string table.
if (PayloadSize == 0 ||
FileIndexToStringOffsetTable.data() != nullptr) {
// Empty or duplicate subsection.
error(object_error::parse_failed);
return;
}
FileIndexToStringOffsetTable = 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 = 8; // Skip relocations.
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) {
error(object_error::parse_failed);
return;
}
uint32_t FilenameOffset;
{
DataExtractor SDE(FileIndexToStringOffsetTable, 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 >= StringTable.size() ||
StringTable.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(StringTable.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);
}
}
}
}
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;
if (error(Sec.getName(Name)))
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()) {
bool Contained = false;
if (Sec.containsSymbol(Symbol, Contained) || !Contained)
continue;
printSymbol(Symbol);
}
}
if (Name == ".debug$S" && opts::CodeViewLineTables)
printCodeViewLineTables(Sec);
if (opts::SectionData) {
StringRef Data;
if (error(Sec.getContents(Data)))
break;
W.printBinaryBlock("SectionData", Data);
}
}
}
void COFFDumper::printRelocations() {
ListScope D(W, "Relocations");
int SectionNumber = 0;
for (const SectionRef &Section : Obj->sections()) {
++SectionNumber;
StringRef Name;
if (error(Section.getName(Name)))
continue;
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;
uint64_t RelocType;
SmallString<32> RelocName;
StringRef SymbolName;
StringRef Contents;
if (error(Reloc.getOffset(Offset)))
return;
if (error(Reloc.getType(RelocType)))
return;
if (error(Reloc.getTypeName(RelocName)))
return;
symbol_iterator Symbol = Reloc.getSymbol();
if (error(Symbol->getName(SymbolName)))
return;
if (error(Section.getContents(Contents)))
return;
if (opts::ExpandRelocs) {
DictScope Group(W, "Relocation");
W.printHex("Offset", Offset);
W.printNumber("Type", RelocName, RelocType);
W.printString("Symbol", SymbolName.size() > 0 ? SymbolName : "-");
} else {
raw_ostream& OS = W.startLine();
OS << W.hex(Offset)
<< " " << RelocName
<< " " << (SymbolName.size() > 0 ? SymbolName : "-")
<< "\n";
}
}
void COFFDumper::printSymbols() {
ListScope Group(W, "Symbols");
for (const SymbolRef &Symbol : Obj->symbols())
printSymbol(Symbol);
}
void COFFDumper::printDynamicSymbols() { ListScope Group(W, "DynamicSymbols"); }
void COFFDumper::printSymbol(const SymbolRef &Sym) {
DictScope D(W, "Symbol");
const coff_symbol *Symbol = Obj->getCOFFSymbol(Sym);
const coff_section *Section;
if (std::error_code EC = Obj->getSection(Symbol->SectionNumber, Section)) {
W.startLine() << "Invalid section number: " << EC.message() << "\n";
W.flush();
return;
}
StringRef SymbolName;
if (Obj->getSymbolName(Symbol, SymbolName))
SymbolName = "";
StringRef SectionName = "";
if (Section)
Obj->getSectionName(Section, SectionName);
W.printString("Name", SymbolName);
W.printNumber("Value", Symbol->Value);
W.printNumber("Section", SectionName, Symbol->SectionNumber);
W.printEnum ("BaseType", Symbol->getBaseType(), makeArrayRef(ImageSymType));
W.printEnum ("ComplexType", Symbol->getComplexType(),
makeArrayRef(ImageSymDType));
W.printEnum ("StorageClass", Symbol->StorageClass,
makeArrayRef(ImageSymClass));
W.printNumber("AuxSymbolCount", Symbol->NumberOfAuxSymbols);
for (unsigned I = 0; I < Symbol->NumberOfAuxSymbols; ++I) {
if (Symbol->isFunctionDefinition()) {
const coff_aux_function_definition *Aux;
if (error(getSymbolAuxData(Obj, Symbol + I, Aux)))
break;
DictScope AS(W, "AuxFunctionDef");
W.printNumber("TagIndex", Aux->TagIndex);
W.printNumber("TotalSize", Aux->TotalSize);
W.printHex("PointerToLineNumber", Aux->PointerToLinenumber);
W.printHex("PointerToNextFunction", Aux->PointerToNextFunction);
W.printBinary("Unused", makeArrayRef(Aux->Unused));
} else if (Symbol->isWeakExternal()) {
const coff_aux_weak_external *Aux;
if (error(getSymbolAuxData(Obj, Symbol + I, Aux)))
break;
const coff_symbol *Linked;
StringRef LinkedName;
std::error_code EC;
if ((EC = Obj->getSymbol(Aux->TagIndex, Linked)) ||
(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));
W.printBinary("Unused", makeArrayRef(Aux->Unused));
} else if (Symbol->isFileRecord()) {
const coff_aux_file *Aux;
if (error(getSymbolAuxData(Obj, Symbol + I, Aux)))
break;
DictScope AS(W, "AuxFileRecord");
StringRef Name(Aux->FileName,
Symbol->NumberOfAuxSymbols * COFF::SymbolSize);
W.printString("FileName", Name.rtrim(StringRef("\0", 1)));
break;
} else if (Symbol->isSectionDefinition()) {
const coff_aux_section_definition *Aux;
if (error(getSymbolAuxData(Obj, Symbol + I, Aux)))
break;
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", Aux->Number);
W.printEnum("Selection", Aux->Selection, makeArrayRef(ImageCOMDATSelect));
W.printBinary("Unused", makeArrayRef(Aux->Unused));
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;
if ((EC = Obj->getSection(Aux->Number, Assoc)) ||
(EC = Obj->getSectionName(Assoc, AssocName))) {
AssocName = "";
error(EC);
}
W.printNumber("AssocSection", AssocName, Aux->Number);
}
} else if (Symbol->isCLRToken()) {
const coff_aux_clr_token *Aux;
if (error(getSymbolAuxData(Obj, Symbol + I, Aux)))
break;
const coff_symbol *ReferredSym;
StringRef ReferredName;
std::error_code EC;
if ((EC = Obj->getSymbol(Aux->SymbolTableIndex, ReferredSym)) ||
(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);
W.printBinary("Unused", makeArrayRef(Aux->Unused));
} else {
W.startLine() << "<unhandled auxiliary record>\n";
}
}
}
void COFFDumper::printUnwindInfo() {
const coff_file_header *Header;
if (error(Obj->getCOFFHeader(Header)))
return;
ListScope D(W, "UnwindInformation");
switch (Header->Machine) {
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", Header->Machine,
makeArrayRef(ImageFileMachineType));
break;
}
}
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