#include "llvm/Object/IRObjectFile.h"
#include "RecordStreamer.h"
+#include "llvm/ADT/STLExtras.h"
#include "llvm/Bitcode/ReaderWriter.h"
-#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/GVMaterializer.h"
+#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Mangler.h"
#include "llvm/IR/Module.h"
-#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCInstrInfo.h"
#include "llvm/MC/MCObjectFileInfo.h"
-#include "llvm/MC/MCTargetAsmParser.h"
#include "llvm/MC/MCParser/MCAsmParser.h"
+#include "llvm/MC/MCRegisterInfo.h"
+#include "llvm/MC/MCSubtargetInfo.h"
+#include "llvm/MC/MCTargetAsmParser.h"
+#include "llvm/Object/ObjectFile.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/SourceMgr.h"
#include "llvm/Support/TargetRegistry.h"
using namespace llvm;
using namespace object;
-IRObjectFile::IRObjectFile(std::unique_ptr<MemoryBuffer> Object,
- std::unique_ptr<Module> Mod)
- : SymbolicFile(Binary::ID_IR, std::move(Object)), M(std::move(Mod)) {
- // If we have a DataLayout, setup a mangler.
- const DataLayout *DL = M->getDataLayout();
- if (!DL)
- return;
-
- Mang.reset(new Mangler(DL));
+IRObjectFile::IRObjectFile(MemoryBufferRef Object, std::unique_ptr<Module> Mod)
+ : SymbolicFile(Binary::ID_IR, Object), M(std::move(Mod)) {
+ Mang.reset(new Mangler());
const std::string &InlineAsm = M->getModuleInlineAsm();
if (InlineAsm.empty())
return;
- StringRef Triple = M->getTargetTriple();
+ Triple TT(M->getTargetTriple());
std::string Err;
- const Target *T = TargetRegistry::lookupTarget(Triple, Err);
+ const Target *T = TargetRegistry::lookupTarget(TT.str(), Err);
if (!T)
return;
- std::unique_ptr<MCRegisterInfo> MRI(T->createMCRegInfo(Triple));
+ std::unique_ptr<MCRegisterInfo> MRI(T->createMCRegInfo(TT.str()));
if (!MRI)
return;
- std::unique_ptr<MCAsmInfo> MAI(T->createMCAsmInfo(*MRI, Triple));
+ std::unique_ptr<MCAsmInfo> MAI(T->createMCAsmInfo(*MRI, TT.str()));
if (!MAI)
return;
std::unique_ptr<MCSubtargetInfo> STI(
- T->createMCSubtargetInfo(Triple, "", ""));
+ T->createMCSubtargetInfo(TT.str(), "", ""));
if (!STI)
return;
MCObjectFileInfo MOFI;
MCContext MCCtx(MAI.get(), MRI.get(), &MOFI);
- MOFI.InitMCObjectFileInfo(Triple, Reloc::Default, CodeModel::Default, MCCtx);
+ MOFI.InitMCObjectFileInfo(TT, Reloc::Default, CodeModel::Default, MCCtx);
std::unique_ptr<RecordStreamer> Streamer(new RecordStreamer(MCCtx));
+ T->createNullTargetStreamer(*Streamer);
std::unique_ptr<MemoryBuffer> Buffer(MemoryBuffer::getMemBuffer(InlineAsm));
SourceMgr SrcMgr;
- SrcMgr.AddNewSourceBuffer(Buffer.release(), SMLoc());
+ SrcMgr.AddNewSourceBuffer(std::move(Buffer), SMLoc());
std::unique_ptr<MCAsmParser> Parser(
createMCAsmParser(SrcMgr, MCCtx, *Streamer, *MAI));
}
IRObjectFile::~IRObjectFile() {
- GVMaterializer *GVM = M->getMaterializer();
- if (GVM)
- GVM->releaseBuffer();
}
-static const GlobalValue *getGV(DataRefImpl &Symb) {
+static GlobalValue *getGV(DataRefImpl &Symb) {
if ((Symb.p & 3) == 3)
return nullptr;
Res = (Index << 2) | 3;
break;
}
+ default:
+ llvm_unreachable("unreachable case");
}
Symb.p = Res;
unsigned Index = getAsmSymIndex(Symb);
assert(Index <= AsmSymbols.size());
OS << AsmSymbols[Index].first;
- return object_error::success;;
+ return std::error_code();
}
+ if (GV->hasDLLImportStorageClass())
+ OS << "__imp_";
+
if (Mang)
Mang->getNameWithPrefix(OS, GV, false);
else
OS << GV->getName();
- return object_error::success;
-}
-
-static bool isDeclaration(const GlobalValue &V) {
- if (V.hasAvailableExternallyLinkage())
- return true;
-
- if (V.isMaterializable())
- return false;
-
- return V.isDeclaration();
+ return std::error_code();
}
uint32_t IRObjectFile::getSymbolFlags(DataRefImpl Symb) const {
}
uint32_t Res = BasicSymbolRef::SF_None;
- if (isDeclaration(*GV))
+ if (GV->isDeclarationForLinker())
Res |= BasicSymbolRef::SF_Undefined;
if (GV->hasPrivateLinkage())
Res |= BasicSymbolRef::SF_FormatSpecific;
return Res;
}
-const GlobalValue *IRObjectFile::getSymbolGV(DataRefImpl Symb) const {
- const GlobalValue *GV = getGV(Symb);
- return GV;
-}
+GlobalValue *IRObjectFile::getSymbolGV(DataRefImpl Symb) { return getGV(Symb); }
+
+std::unique_ptr<Module> IRObjectFile::takeModule() { return std::move(M); }
basic_symbol_iterator IRObjectFile::symbol_begin_impl() const {
Module::const_iterator I = M->begin();
return basic_symbol_iterator(BasicSymbolRef(Ret, this));
}
-ErrorOr<IRObjectFile *> llvm::object::IRObjectFile::createIRObjectFile(
- std::unique_ptr<MemoryBuffer> Object, LLVMContext &Context) {
- ErrorOr<Module *> MOrErr = getLazyBitcodeModule(Object.get(), Context);
+ErrorOr<MemoryBufferRef> IRObjectFile::findBitcodeInObject(const ObjectFile &Obj) {
+ for (const SectionRef &Sec : Obj.sections()) {
+ StringRef SecName;
+ if (std::error_code EC = Sec.getName(SecName))
+ return EC;
+ if (SecName == ".llvmbc") {
+ StringRef SecContents;
+ if (std::error_code EC = Sec.getContents(SecContents))
+ return EC;
+ return MemoryBufferRef(SecContents, Obj.getFileName());
+ }
+ }
+
+ return object_error::bitcode_section_not_found;
+}
+
+ErrorOr<MemoryBufferRef> IRObjectFile::findBitcodeInMemBuffer(MemoryBufferRef Object) {
+ sys::fs::file_magic Type = sys::fs::identify_magic(Object.getBuffer());
+ switch (Type) {
+ case sys::fs::file_magic::bitcode:
+ return Object;
+ case sys::fs::file_magic::elf_relocatable:
+ case sys::fs::file_magic::macho_object:
+ case sys::fs::file_magic::coff_object: {
+ ErrorOr<std::unique_ptr<ObjectFile>> ObjFile =
+ ObjectFile::createObjectFile(Object, Type);
+ if (!ObjFile)
+ return ObjFile.getError();
+ return findBitcodeInObject(*ObjFile->get());
+ }
+ default:
+ return object_error::invalid_file_type;
+ }
+}
+
+ErrorOr<std::unique_ptr<IRObjectFile>>
+llvm::object::IRObjectFile::create(MemoryBufferRef Object,
+ LLVMContext &Context) {
+ ErrorOr<MemoryBufferRef> BCOrErr = findBitcodeInMemBuffer(Object);
+ if (!BCOrErr)
+ return BCOrErr.getError();
+
+ std::unique_ptr<MemoryBuffer> Buff(
+ MemoryBuffer::getMemBuffer(BCOrErr.get(), false));
+
+ ErrorOr<std::unique_ptr<Module>> MOrErr =
+ getLazyBitcodeModule(std::move(Buff), Context, nullptr,
+ /*ShouldLazyLoadMetadata*/ true);
if (std::error_code EC = MOrErr.getError())
return EC;
- std::unique_ptr<Module> M(MOrErr.get());
- return new IRObjectFile(std::move(Object), std::move(M));
+ std::unique_ptr<Module> &M = MOrErr.get();
+ return llvm::make_unique<IRObjectFile>(Object, std::move(M));
}
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