mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 20:23:11 +01:00
6a61ba0a54
This reverts commit 101fbc01382edd89ea7b671104c68b30b2446cc0. Remove leftover debugging attribute. Update LLDB as well, which was missed before.
366 lines
14 KiB
C++
366 lines
14 KiB
C++
//===------ utils/obj2yaml.cpp - obj2yaml conversion tool -------*- 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "obj2yaml.h"
|
|
#include "llvm/ADT/StringMap.h"
|
|
#include "llvm/DebugInfo/CodeView/DebugChecksumsSubsection.h"
|
|
#include "llvm/DebugInfo/CodeView/DebugStringTableSubsection.h"
|
|
#include "llvm/DebugInfo/CodeView/StringsAndChecksums.h"
|
|
#include "llvm/Object/COFF.h"
|
|
#include "llvm/ObjectYAML/COFFYAML.h"
|
|
#include "llvm/ObjectYAML/CodeViewYAMLTypes.h"
|
|
#include "llvm/Support/ErrorHandling.h"
|
|
#include "llvm/Support/YAMLTraits.h"
|
|
|
|
using namespace llvm;
|
|
|
|
namespace {
|
|
|
|
class COFFDumper {
|
|
const object::COFFObjectFile &Obj;
|
|
COFFYAML::Object YAMLObj;
|
|
template <typename T>
|
|
void dumpOptionalHeader(T OptionalHeader);
|
|
void dumpHeader();
|
|
void dumpSections(unsigned numSections);
|
|
void dumpSymbols(unsigned numSymbols);
|
|
|
|
public:
|
|
COFFDumper(const object::COFFObjectFile &Obj);
|
|
COFFYAML::Object &getYAMLObj();
|
|
};
|
|
|
|
}
|
|
|
|
COFFDumper::COFFDumper(const object::COFFObjectFile &Obj) : Obj(Obj) {
|
|
if (const object::pe32_header *PE32Header = Obj.getPE32Header())
|
|
dumpOptionalHeader(PE32Header);
|
|
else if (const object::pe32plus_header *PE32PlusHeader =
|
|
Obj.getPE32PlusHeader())
|
|
dumpOptionalHeader(PE32PlusHeader);
|
|
|
|
dumpHeader();
|
|
dumpSections(Obj.getNumberOfSections());
|
|
dumpSymbols(Obj.getNumberOfSymbols());
|
|
}
|
|
|
|
template <typename T> void COFFDumper::dumpOptionalHeader(T OptionalHeader) {
|
|
YAMLObj.OptionalHeader = COFFYAML::PEHeader();
|
|
YAMLObj.OptionalHeader->Header.AddressOfEntryPoint =
|
|
OptionalHeader->AddressOfEntryPoint;
|
|
YAMLObj.OptionalHeader->Header.ImageBase = OptionalHeader->ImageBase;
|
|
YAMLObj.OptionalHeader->Header.SectionAlignment =
|
|
OptionalHeader->SectionAlignment;
|
|
YAMLObj.OptionalHeader->Header.FileAlignment = OptionalHeader->FileAlignment;
|
|
YAMLObj.OptionalHeader->Header.MajorOperatingSystemVersion =
|
|
OptionalHeader->MajorOperatingSystemVersion;
|
|
YAMLObj.OptionalHeader->Header.MinorOperatingSystemVersion =
|
|
OptionalHeader->MinorOperatingSystemVersion;
|
|
YAMLObj.OptionalHeader->Header.MajorImageVersion =
|
|
OptionalHeader->MajorImageVersion;
|
|
YAMLObj.OptionalHeader->Header.MinorImageVersion =
|
|
OptionalHeader->MinorImageVersion;
|
|
YAMLObj.OptionalHeader->Header.MajorSubsystemVersion =
|
|
OptionalHeader->MajorSubsystemVersion;
|
|
YAMLObj.OptionalHeader->Header.MinorSubsystemVersion =
|
|
OptionalHeader->MinorSubsystemVersion;
|
|
YAMLObj.OptionalHeader->Header.Subsystem = OptionalHeader->Subsystem;
|
|
YAMLObj.OptionalHeader->Header.DLLCharacteristics =
|
|
OptionalHeader->DLLCharacteristics;
|
|
YAMLObj.OptionalHeader->Header.SizeOfStackReserve =
|
|
OptionalHeader->SizeOfStackReserve;
|
|
YAMLObj.OptionalHeader->Header.SizeOfStackCommit =
|
|
OptionalHeader->SizeOfStackCommit;
|
|
YAMLObj.OptionalHeader->Header.SizeOfHeapReserve =
|
|
OptionalHeader->SizeOfHeapReserve;
|
|
YAMLObj.OptionalHeader->Header.SizeOfHeapCommit =
|
|
OptionalHeader->SizeOfHeapCommit;
|
|
unsigned I = 0;
|
|
for (auto &DestDD : YAMLObj.OptionalHeader->DataDirectories) {
|
|
const object::data_directory *DD = Obj.getDataDirectory(I++);
|
|
if (!DD)
|
|
continue;
|
|
DestDD = COFF::DataDirectory();
|
|
DestDD->RelativeVirtualAddress = DD->RelativeVirtualAddress;
|
|
DestDD->Size = DD->Size;
|
|
}
|
|
}
|
|
|
|
void COFFDumper::dumpHeader() {
|
|
YAMLObj.Header.Machine = Obj.getMachine();
|
|
YAMLObj.Header.Characteristics = Obj.getCharacteristics();
|
|
}
|
|
|
|
static void
|
|
initializeFileAndStringTable(const llvm::object::COFFObjectFile &Obj,
|
|
codeview::StringsAndChecksumsRef &SC) {
|
|
|
|
ExitOnError Err("invalid .debug$S section");
|
|
// Iterate all .debug$S sections looking for the checksums and string table.
|
|
// Exit as soon as both sections are found.
|
|
for (const auto &S : Obj.sections()) {
|
|
if (SC.hasStrings() && SC.hasChecksums())
|
|
break;
|
|
|
|
Expected<StringRef> SectionNameOrErr = S.getName();
|
|
if (!SectionNameOrErr) {
|
|
consumeError(SectionNameOrErr.takeError());
|
|
continue;
|
|
}
|
|
|
|
ArrayRef<uint8_t> sectionData;
|
|
if ((*SectionNameOrErr) != ".debug$S")
|
|
continue;
|
|
|
|
const object::coff_section *COFFSection = Obj.getCOFFSection(S);
|
|
|
|
cantFail(Obj.getSectionContents(COFFSection, sectionData));
|
|
|
|
BinaryStreamReader Reader(sectionData, support::little);
|
|
uint32_t Magic;
|
|
|
|
Err(Reader.readInteger(Magic));
|
|
assert(Magic == COFF::DEBUG_SECTION_MAGIC && "Invalid .debug$S section!");
|
|
|
|
codeview::DebugSubsectionArray Subsections;
|
|
Err(Reader.readArray(Subsections, Reader.bytesRemaining()));
|
|
|
|
SC.initialize(Subsections);
|
|
}
|
|
}
|
|
|
|
void COFFDumper::dumpSections(unsigned NumSections) {
|
|
std::vector<COFFYAML::Section> &YAMLSections = YAMLObj.Sections;
|
|
codeview::StringsAndChecksumsRef SC;
|
|
initializeFileAndStringTable(Obj, SC);
|
|
|
|
ExitOnError Err("invalid section table");
|
|
StringMap<bool> SymbolUnique;
|
|
for (const auto &S : Obj.symbols()) {
|
|
StringRef Name = Err(Obj.getSymbolName(Obj.getCOFFSymbol(S)));
|
|
StringMap<bool>::iterator It;
|
|
bool Inserted;
|
|
std::tie(It, Inserted) = SymbolUnique.insert(std::make_pair(Name, true));
|
|
if (!Inserted)
|
|
It->second = false;
|
|
}
|
|
|
|
for (const auto &ObjSection : Obj.sections()) {
|
|
const object::coff_section *COFFSection = Obj.getCOFFSection(ObjSection);
|
|
COFFYAML::Section NewYAMLSection;
|
|
|
|
if (Expected<StringRef> NameOrErr = ObjSection.getName())
|
|
NewYAMLSection.Name = *NameOrErr;
|
|
else
|
|
consumeError(NameOrErr.takeError());
|
|
|
|
NewYAMLSection.Header.Characteristics = COFFSection->Characteristics;
|
|
NewYAMLSection.Header.VirtualAddress = COFFSection->VirtualAddress;
|
|
NewYAMLSection.Header.VirtualSize = COFFSection->VirtualSize;
|
|
NewYAMLSection.Header.NumberOfLineNumbers =
|
|
COFFSection->NumberOfLinenumbers;
|
|
NewYAMLSection.Header.NumberOfRelocations =
|
|
COFFSection->NumberOfRelocations;
|
|
NewYAMLSection.Header.PointerToLineNumbers =
|
|
COFFSection->PointerToLinenumbers;
|
|
NewYAMLSection.Header.PointerToRawData = COFFSection->PointerToRawData;
|
|
NewYAMLSection.Header.PointerToRelocations =
|
|
COFFSection->PointerToRelocations;
|
|
NewYAMLSection.Header.SizeOfRawData = COFFSection->SizeOfRawData;
|
|
uint32_t Shift = (COFFSection->Characteristics >> 20) & 0xF;
|
|
NewYAMLSection.Alignment = (1U << Shift) >> 1;
|
|
assert(NewYAMLSection.Alignment <= 8192);
|
|
|
|
ArrayRef<uint8_t> sectionData;
|
|
if (!ObjSection.isBSS())
|
|
cantFail(Obj.getSectionContents(COFFSection, sectionData));
|
|
NewYAMLSection.SectionData = yaml::BinaryRef(sectionData);
|
|
|
|
if (NewYAMLSection.Name == ".debug$S")
|
|
NewYAMLSection.DebugS = CodeViewYAML::fromDebugS(sectionData, SC);
|
|
else if (NewYAMLSection.Name == ".debug$T")
|
|
NewYAMLSection.DebugT = CodeViewYAML::fromDebugT(sectionData,
|
|
NewYAMLSection.Name);
|
|
else if (NewYAMLSection.Name == ".debug$P")
|
|
NewYAMLSection.DebugP = CodeViewYAML::fromDebugT(sectionData,
|
|
NewYAMLSection.Name);
|
|
else if (NewYAMLSection.Name == ".debug$H")
|
|
NewYAMLSection.DebugH = CodeViewYAML::fromDebugH(sectionData);
|
|
|
|
std::vector<COFFYAML::Relocation> Relocations;
|
|
for (const auto &Reloc : ObjSection.relocations()) {
|
|
const object::coff_relocation *reloc = Obj.getCOFFRelocation(Reloc);
|
|
COFFYAML::Relocation Rel;
|
|
object::symbol_iterator Sym = Reloc.getSymbol();
|
|
Expected<StringRef> SymbolNameOrErr = Sym->getName();
|
|
if (!SymbolNameOrErr) {
|
|
std::string Buf;
|
|
raw_string_ostream OS(Buf);
|
|
logAllUnhandledErrors(SymbolNameOrErr.takeError(), OS);
|
|
OS.flush();
|
|
report_fatal_error(Buf);
|
|
}
|
|
if (SymbolUnique.lookup(*SymbolNameOrErr))
|
|
Rel.SymbolName = *SymbolNameOrErr;
|
|
else
|
|
Rel.SymbolTableIndex = reloc->SymbolTableIndex;
|
|
Rel.VirtualAddress = reloc->VirtualAddress;
|
|
Rel.Type = reloc->Type;
|
|
Relocations.push_back(Rel);
|
|
}
|
|
NewYAMLSection.Relocations = Relocations;
|
|
YAMLSections.push_back(NewYAMLSection);
|
|
}
|
|
}
|
|
|
|
static void
|
|
dumpFunctionDefinition(COFFYAML::Symbol *Sym,
|
|
const object::coff_aux_function_definition *ObjFD) {
|
|
COFF::AuxiliaryFunctionDefinition YAMLFD;
|
|
YAMLFD.TagIndex = ObjFD->TagIndex;
|
|
YAMLFD.TotalSize = ObjFD->TotalSize;
|
|
YAMLFD.PointerToLinenumber = ObjFD->PointerToLinenumber;
|
|
YAMLFD.PointerToNextFunction = ObjFD->PointerToNextFunction;
|
|
|
|
Sym->FunctionDefinition = YAMLFD;
|
|
}
|
|
|
|
static void
|
|
dumpbfAndEfLineInfo(COFFYAML::Symbol *Sym,
|
|
const object::coff_aux_bf_and_ef_symbol *ObjBES) {
|
|
COFF::AuxiliarybfAndefSymbol YAMLAAS;
|
|
YAMLAAS.Linenumber = ObjBES->Linenumber;
|
|
YAMLAAS.PointerToNextFunction = ObjBES->PointerToNextFunction;
|
|
|
|
Sym->bfAndefSymbol = YAMLAAS;
|
|
}
|
|
|
|
static void dumpWeakExternal(COFFYAML::Symbol *Sym,
|
|
const object::coff_aux_weak_external *ObjWE) {
|
|
COFF::AuxiliaryWeakExternal YAMLWE;
|
|
YAMLWE.TagIndex = ObjWE->TagIndex;
|
|
YAMLWE.Characteristics = ObjWE->Characteristics;
|
|
|
|
Sym->WeakExternal = YAMLWE;
|
|
}
|
|
|
|
static void
|
|
dumpSectionDefinition(COFFYAML::Symbol *Sym,
|
|
const object::coff_aux_section_definition *ObjSD,
|
|
bool IsBigObj) {
|
|
COFF::AuxiliarySectionDefinition YAMLASD;
|
|
int32_t AuxNumber = ObjSD->getNumber(IsBigObj);
|
|
YAMLASD.Length = ObjSD->Length;
|
|
YAMLASD.NumberOfRelocations = ObjSD->NumberOfRelocations;
|
|
YAMLASD.NumberOfLinenumbers = ObjSD->NumberOfLinenumbers;
|
|
YAMLASD.CheckSum = ObjSD->CheckSum;
|
|
YAMLASD.Number = AuxNumber;
|
|
YAMLASD.Selection = ObjSD->Selection;
|
|
|
|
Sym->SectionDefinition = YAMLASD;
|
|
}
|
|
|
|
static void
|
|
dumpCLRTokenDefinition(COFFYAML::Symbol *Sym,
|
|
const object::coff_aux_clr_token *ObjCLRToken) {
|
|
COFF::AuxiliaryCLRToken YAMLCLRToken;
|
|
YAMLCLRToken.AuxType = ObjCLRToken->AuxType;
|
|
YAMLCLRToken.SymbolTableIndex = ObjCLRToken->SymbolTableIndex;
|
|
|
|
Sym->CLRToken = YAMLCLRToken;
|
|
}
|
|
|
|
void COFFDumper::dumpSymbols(unsigned NumSymbols) {
|
|
ExitOnError Err("invalid symbol table");
|
|
|
|
std::vector<COFFYAML::Symbol> &Symbols = YAMLObj.Symbols;
|
|
for (const auto &S : Obj.symbols()) {
|
|
object::COFFSymbolRef Symbol = Obj.getCOFFSymbol(S);
|
|
COFFYAML::Symbol Sym;
|
|
Sym.Name = Err(Obj.getSymbolName(Symbol));
|
|
Sym.SimpleType = COFF::SymbolBaseType(Symbol.getBaseType());
|
|
Sym.ComplexType = COFF::SymbolComplexType(Symbol.getComplexType());
|
|
Sym.Header.StorageClass = Symbol.getStorageClass();
|
|
Sym.Header.Value = Symbol.getValue();
|
|
Sym.Header.SectionNumber = Symbol.getSectionNumber();
|
|
Sym.Header.NumberOfAuxSymbols = Symbol.getNumberOfAuxSymbols();
|
|
|
|
if (Symbol.getNumberOfAuxSymbols() > 0) {
|
|
ArrayRef<uint8_t> AuxData = Obj.getSymbolAuxData(Symbol);
|
|
if (Symbol.isFunctionDefinition()) {
|
|
// This symbol represents a function definition.
|
|
assert(Symbol.getNumberOfAuxSymbols() == 1 &&
|
|
"Expected a single aux symbol to describe this function!");
|
|
|
|
const object::coff_aux_function_definition *ObjFD =
|
|
reinterpret_cast<const object::coff_aux_function_definition *>(
|
|
AuxData.data());
|
|
dumpFunctionDefinition(&Sym, ObjFD);
|
|
} else if (Symbol.isFunctionLineInfo()) {
|
|
// This symbol describes function line number information.
|
|
assert(Symbol.getNumberOfAuxSymbols() == 1 &&
|
|
"Expected a single aux symbol to describe this function!");
|
|
|
|
const object::coff_aux_bf_and_ef_symbol *ObjBES =
|
|
reinterpret_cast<const object::coff_aux_bf_and_ef_symbol *>(
|
|
AuxData.data());
|
|
dumpbfAndEfLineInfo(&Sym, ObjBES);
|
|
} else if (Symbol.isAnyUndefined()) {
|
|
// This symbol represents a weak external definition.
|
|
assert(Symbol.getNumberOfAuxSymbols() == 1 &&
|
|
"Expected a single aux symbol to describe this weak symbol!");
|
|
|
|
const object::coff_aux_weak_external *ObjWE =
|
|
reinterpret_cast<const object::coff_aux_weak_external *>(
|
|
AuxData.data());
|
|
dumpWeakExternal(&Sym, ObjWE);
|
|
} else if (Symbol.isFileRecord()) {
|
|
// This symbol represents a file record.
|
|
Sym.File = StringRef(reinterpret_cast<const char *>(AuxData.data()),
|
|
Symbol.getNumberOfAuxSymbols() *
|
|
Obj.getSymbolTableEntrySize())
|
|
.rtrim(StringRef("\0", /*length=*/1));
|
|
} else if (Symbol.isSectionDefinition()) {
|
|
// This symbol represents a section definition.
|
|
assert(Symbol.getNumberOfAuxSymbols() == 1 &&
|
|
"Expected a single aux symbol to describe this section!");
|
|
|
|
const object::coff_aux_section_definition *ObjSD =
|
|
reinterpret_cast<const object::coff_aux_section_definition *>(
|
|
AuxData.data());
|
|
dumpSectionDefinition(&Sym, ObjSD, Symbol.isBigObj());
|
|
} else if (Symbol.isCLRToken()) {
|
|
// This symbol represents a CLR token definition.
|
|
assert(Symbol.getNumberOfAuxSymbols() == 1 &&
|
|
"Expected a single aux symbol to describe this CLR Token!");
|
|
|
|
const object::coff_aux_clr_token *ObjCLRToken =
|
|
reinterpret_cast<const object::coff_aux_clr_token *>(
|
|
AuxData.data());
|
|
dumpCLRTokenDefinition(&Sym, ObjCLRToken);
|
|
} else {
|
|
llvm_unreachable("Unhandled auxiliary symbol!");
|
|
}
|
|
}
|
|
Symbols.push_back(Sym);
|
|
}
|
|
}
|
|
|
|
COFFYAML::Object &COFFDumper::getYAMLObj() {
|
|
return YAMLObj;
|
|
}
|
|
|
|
std::error_code coff2yaml(raw_ostream &Out, const object::COFFObjectFile &Obj) {
|
|
COFFDumper Dumper(Obj);
|
|
|
|
yaml::Output Yout(Out);
|
|
Yout << Dumper.getYAMLObj();
|
|
|
|
return std::error_code();
|
|
}
|