LTOModule *LTOModule::createFromOpenFileSlice(int fd, const char *path,
size_t map_size, off_t offset,
TargetOptions options,
std::string &errMsg) {
ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOrErr =
MemoryBuffer::getOpenFileSlice(fd, path, map_size, offset);
if (std::error_code EC = BufferOrErr.getError()) {
errMsg = EC.message();
return nullptr;
}
std::unique_ptr<MemoryBuffer> Buffer = std::move(BufferOrErr.get());
return makeLTOModule(Buffer->getMemBufferRef(), options, errMsg,
&getGlobalContext());
}
static int checkAllExpressions(RuntimeDyldChecker &Checker) {
for (const auto& CheckerFileName : CheckFiles) {
ErrorOr<std::unique_ptr<MemoryBuffer>> CheckerFileBuf =
MemoryBuffer::getFileOrSTDIN(CheckerFileName);
if (std::error_code EC = CheckerFileBuf.getError())
return Error("unable to read input '" + CheckerFileName + "': " +
EC.message());
if (!Checker.checkAllRulesInBuffer("# rtdyld-check:",
CheckerFileBuf.get().get()))
return Error("some checks in '" + CheckerFileName + "' failed");
}
return 0;
}
LTOModule *LTOModule::makeLTOModule(MemoryBuffer *buffer,
TargetOptions options,
std::string &errMsg) {
// parse bitcode buffer
ErrorOr<Module *> ModuleOrErr =
getLazyBitcodeModule(buffer, getGlobalContext());
if (error_code EC = ModuleOrErr.getError()) {
errMsg = EC.message();
delete buffer;
return NULL;
}
OwningPtr<Module> m(ModuleOrErr.get());
std::string TripleStr = m->getTargetTriple();
if (TripleStr.empty())
TripleStr = sys::getDefaultTargetTriple();
llvm::Triple Triple(TripleStr);
// find machine architecture for this module
const Target *march = TargetRegistry::lookupTarget(TripleStr, errMsg);
if (!march)
return NULL;
// construct LTOModule, hand over ownership of module and target
SubtargetFeatures Features;
Features.getDefaultSubtargetFeatures(Triple);
std::string FeatureStr = Features.getString();
// Set a default CPU for Darwin triples.
std::string CPU;
if (Triple.isOSDarwin()) {
if (Triple.getArch() == llvm::Triple::x86_64)
CPU = "core2";
else if (Triple.getArch() == llvm::Triple::x86)
CPU = "yonah";
}
TargetMachine *target = march->createTargetMachine(TripleStr, CPU, FeatureStr,
options);
m->materializeAllPermanently();
LTOModule *Ret = new LTOModule(m.take(), target);
if (Ret->parseSymbols(errMsg)) {
delete Ret;
return NULL;
}
Ret->parseMetadata();
return Ret;
}
// Load problem header list.
std::error_code ModularizeUtilities::loadProblemHeaderList(
llvm::StringRef InputPath) {
// By default, use the path component of the list file name.
SmallString<256> HeaderDirectory(InputPath);
llvm::sys::path::remove_filename(HeaderDirectory);
SmallString<256> CurrentDirectory;
llvm::sys::fs::current_path(CurrentDirectory);
// Get the prefix if we have one.
if (HeaderPrefix.size() != 0)
HeaderDirectory = HeaderPrefix;
// Read the header list file into a buffer.
ErrorOr<std::unique_ptr<MemoryBuffer>> listBuffer =
MemoryBuffer::getFile(InputPath);
if (std::error_code EC = listBuffer.getError())
return EC;
// Parse the header list into strings.
SmallVector<StringRef, 32> Strings;
listBuffer.get()->getBuffer().split(Strings, "\n", -1, false);
// Collect the header file names from the string list.
for (SmallVectorImpl<StringRef>::iterator I = Strings.begin(),
E = Strings.end();
I != E; ++I) {
StringRef Line = I->trim();
// Ignore comments and empty lines.
if (Line.empty() || (Line[0] == '#'))
continue;
SmallString<256> HeaderFileName;
// Prepend header file name prefix if it's not absolute.
if (llvm::sys::path::is_absolute(Line))
llvm::sys::path::native(Line, HeaderFileName);
else {
if (HeaderDirectory.size() != 0)
HeaderFileName = HeaderDirectory;
else
HeaderFileName = CurrentDirectory;
llvm::sys::path::append(HeaderFileName, Line);
llvm::sys::path::native(HeaderFileName);
}
// Get canonical form.
HeaderFileName = getCanonicalPath(HeaderFileName);
// Save the resulting header file path.
ProblemFileNames.push_back(HeaderFileName.str());
}
return std::error_code();
}
bool LTOModule::isBitcodeFile(StringRef Path) {
ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOrErr =
MemoryBuffer::getFile(Path);
if (!BufferOrErr)
return false;
Expected<MemoryBufferRef> BCData = IRObjectFile::findBitcodeInMemBuffer(
BufferOrErr.get()->getMemBufferRef());
if (!BCData) {
consumeError(BCData.takeError());
return false;
}
return true;
}
ErrorOr<std::unique_ptr<LTOModule>>
LTOModule::createFromOpenFileSlice(LLVMContext &Context, int fd, StringRef path,
size_t map_size, off_t offset,
const TargetOptions &options) {
ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOrErr =
MemoryBuffer::getOpenFileSlice(fd, path, map_size, offset);
if (std::error_code EC = BufferOrErr.getError()) {
Context.emitError(EC.message());
return EC;
}
std::unique_ptr<MemoryBuffer> Buffer = std::move(BufferOrErr.get());
return makeLTOModule(Buffer->getMemBufferRef(), options, Context,
/* ShouldBeLazy */ false);
}
/// Bundle the files. Return true if an error was found.
static bool BundleFiles() {
std::error_code EC;
// Create output file.
raw_fd_ostream OutputFile(OutputFileNames.front(), EC, sys::fs::F_None);
if (EC) {
errs() << "error: Can't open file " << OutputFileNames.front() << ".\n";
return true;
}
// Open input files.
std::vector<std::unique_ptr<MemoryBuffer>> InputBuffers(
InputFileNames.size());
unsigned Idx = 0;
for (auto &I : InputFileNames) {
ErrorOr<std::unique_ptr<MemoryBuffer>> CodeOrErr =
MemoryBuffer::getFileOrSTDIN(I);
if (std::error_code EC = CodeOrErr.getError()) {
errs() << "error: Can't open file " << I << ": " << EC.message() << "\n";
return true;
}
InputBuffers[Idx++] = std::move(CodeOrErr.get());
}
// Get the file handler. We use the host buffer as reference.
assert(HostInputIndex != ~0u && "Host input index undefined??");
std::unique_ptr<FileHandler> FH;
FH.reset(CreateFileHandler(*InputBuffers[HostInputIndex].get()));
// Quit if we don't have a handler.
if (!FH.get())
return true;
// Write header.
FH.get()->WriteHeader(OutputFile, InputBuffers);
// Write all bundles along with the start/end markers. If an error was found
// writing the end of the bundle component, abort the bundle writing.
auto Input = InputBuffers.begin();
for (auto &Triple : TargetNames) {
FH.get()->WriteBundleStart(OutputFile, Triple);
FH.get()->WriteBundle(OutputFile, *Input->get());
if (FH.get()->WriteBundleEnd(OutputFile, Triple))
return true;
++Input;
}
return false;
}
uint64_t MCJIT::getSymbolAddress(const std::string &Name,
bool CheckFunctionsOnly)
{
MutexGuard locked(lock);
// First, check to see if we already have this symbol.
uint64_t Addr = getExistingSymbolAddress(Name);
if (Addr)
return Addr;
for (object::OwningBinary<object::Archive> &OB : Archives) {
object::Archive *A = OB.getBinary().get();
// Look for our symbols in each Archive
object::Archive::child_iterator ChildIt = A->findSym(Name);
if (ChildIt != A->child_end()) {
// FIXME: Support nested archives?
ErrorOr<std::unique_ptr<object::Binary>> ChildBinOrErr =
ChildIt->getAsBinary();
if (ChildBinOrErr.getError())
continue;
std::unique_ptr<object::Binary> &ChildBin = ChildBinOrErr.get();
if (ChildBin->isObject()) {
std::unique_ptr<object::ObjectFile> OF(
static_cast<object::ObjectFile *>(ChildBin.release()));
// This causes the object file to be loaded.
addObjectFile(std::move(OF));
// The address should be here now.
Addr = getExistingSymbolAddress(Name);
if (Addr)
return Addr;
}
}
}
// If it hasn't already been generated, see if it's in one of our modules.
Module *M = findModuleForSymbol(Name, CheckFunctionsOnly);
if (M) {
generateCodeForModule(M);
// Check the RuntimeDyld table again, it should be there now.
return getExistingSymbolAddress(Name);
}
// If a LazyFunctionCreator is installed, use it to get/create the function.
// FIXME: Should we instead have a LazySymbolCreator callback?
if (LazyFunctionCreator)
Addr = (uint64_t)LazyFunctionCreator(Name);
return Addr;
}
/// @brief Print the section sizes for @p file. If @p file is an archive, print
/// the section sizes for each archive member.
static void PrintFileSectionSizes(StringRef file) {
// If file is not stdin, check that it exists.
if (file != "-") {
bool exists;
if (sys::fs::exists(file, exists) || !exists) {
errs() << ToolName << ": '" << file << "': " << "No such file\n";
return;
}
}
// Attempt to open the binary.
ErrorOr<Binary *> BinaryOrErr = createBinary(file);
if (error_code EC = BinaryOrErr.getError()) {
errs() << ToolName << ": " << file << ": " << EC.message() << ".\n";
return;
}
OwningPtr<Binary> binary(BinaryOrErr.get());
if (Archive *a = dyn_cast<Archive>(binary.get())) {
// This is an archive. Iterate over each member and display its sizes.
for (object::Archive::child_iterator i = a->child_begin(),
e = a->child_end(); i != e; ++i) {
OwningPtr<Binary> child;
if (error_code ec = i->getAsBinary(child)) {
errs() << ToolName << ": " << file << ": " << ec.message() << ".\n";
continue;
}
if (ObjectFile *o = dyn_cast<ObjectFile>(child.get())) {
if (OutputFormat == sysv)
outs() << o->getFileName() << " (ex " << a->getFileName()
<< "):\n";
PrintObjectSectionSizes(o);
if (OutputFormat == berkeley)
outs() << o->getFileName() << " (ex " << a->getFileName() << ")\n";
}
}
} else if (ObjectFile *o = dyn_cast<ObjectFile>(binary.get())) {
if (OutputFormat == sysv)
outs() << o->getFileName() << " :\n";
PrintObjectSectionSizes(o);
if (OutputFormat == berkeley)
outs() << o->getFileName() << "\n";
} else {
errs() << ToolName << ": " << file << ": " << "Unrecognized file type.\n";
}
// System V adds an extra newline at the end of each file.
if (OutputFormat == sysv)
outs() << "\n";
}
static error_code dumpInput(StringRef File) {
if (File != "-" && !sys::fs::exists(File))
return obj2yaml_error::file_not_found;
ErrorOr<Binary *> BinaryOrErr = createBinary(File);
if (error_code EC = BinaryOrErr.getError())
return EC;
std::unique_ptr<Binary> Binary(BinaryOrErr.get());
// TODO: If this is an archive, then burst it and dump each entry
if (ObjectFile *Obj = dyn_cast<ObjectFile>(Binary.get()))
return dumpObject(*Obj);
return obj2yaml_error::unrecognized_file_format;
}
Expected<OwningBinary<Binary>> object::createBinary(StringRef Path) {
ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
MemoryBuffer::getFileOrSTDIN(Path);
if (std::error_code EC = FileOrErr.getError())
return errorCodeToError(EC);
std::unique_ptr<MemoryBuffer> &Buffer = FileOrErr.get();
Expected<std::unique_ptr<Binary>> BinOrErr =
createBinary(Buffer->getMemBufferRef());
if (!BinOrErr)
return BinOrErr.takeError();
std::unique_ptr<Binary> &Bin = BinOrErr.get();
return OwningBinary<Binary>(std::move(Bin), std::move(Buffer));
}
std::error_code MachOUniversalBinary::ObjectForArch::getAsArchive(
std::unique_ptr<Archive> &Result) const {
if (Parent) {
StringRef ParentData = Parent->getData();
StringRef ObjectData = ParentData.substr(Header.offset, Header.size);
StringRef ObjectName = Parent->getFileName();
MemoryBufferRef ObjBuffer(ObjectData, ObjectName);
ErrorOr<std::unique_ptr<Archive>> Obj = Archive::create(ObjBuffer);
if (std::error_code EC = Obj.getError())
return EC;
Result = std::move(Obj.get());
return object_error::success;
}
return object_error::parse_failed;
}
std::error_code ELFDumper<ELFT>::dumpCommonSection(const Elf_Shdr *Shdr,
ELFYAML::Section &S) {
S.Type = Shdr->sh_type;
S.Flags = Shdr->sh_flags;
S.Address = Shdr->sh_addr;
S.AddressAlign = Shdr->sh_addralign;
ErrorOr<StringRef> NameOrErr = Obj.getSectionName(Shdr);
if (std::error_code EC = NameOrErr.getError())
return EC;
S.Name = NameOrErr.get();
if (Shdr->sh_link != ELF::SHN_UNDEF) {
ErrorOr<const Elf_Shdr *> LinkSection = Obj.getSection(Shdr->sh_link);
if (std::error_code EC = LinkSection.getError())
return EC;
NameOrErr = Obj.getSectionName(*LinkSection);
if (std::error_code EC = NameOrErr.getError())
return EC;
S.Link = NameOrErr.get();
}
return obj2yaml_error::success;
}
ErrorOr<ELFYAML::RawContentSection *>
ELFDumper<ELFT>::dumpContentSection(const Elf_Shdr *Shdr) {
auto S = make_unique<ELFYAML::RawContentSection>();
if (std::error_code EC = dumpCommonSection(Shdr, *S))
return EC;
ErrorOr<ArrayRef<uint8_t>> ContentOrErr = Obj.getSectionContents(Shdr);
if (std::error_code EC = ContentOrErr.getError())
return EC;
S->Content = yaml::BinaryRef(ContentOrErr.get());
S->Size = S->Content.binary_size();
return S.release();
}
/// \brief Get the weight for an instruction.
///
/// The "weight" of an instruction \p Inst is the number of samples
/// collected on that instruction at runtime. To retrieve it, we
/// need to compute the line number of \p Inst relative to the start of its
/// function. We use HeaderLineno to compute the offset. We then
/// look up the samples collected for \p Inst using BodySamples.
///
/// \param Inst Instruction to query.
///
/// \returns the weight of \p Inst.
ErrorOr<uint64_t>
SampleProfileLoader::getInstWeight(const Instruction &Inst) const {
DebugLoc DLoc = Inst.getDebugLoc();
if (!DLoc)
return std::error_code();
const FunctionSamples *FS = findFunctionSamples(Inst);
if (!FS)
return std::error_code();
const DILocation *DIL = DLoc;
unsigned Lineno = DLoc.getLine();
unsigned HeaderLineno = DIL->getScope()->getSubprogram()->getLine();
uint32_t LineOffset = getOffset(Lineno, HeaderLineno);
uint32_t Discriminator = DIL->getDiscriminator();
ErrorOr<uint64_t> R = FS->findSamplesAt(LineOffset, Discriminator);
if (R) {
bool FirstMark =
CoverageTracker.markSamplesUsed(FS, LineOffset, Discriminator, R.get());
if (FirstMark) {
const Function *F = Inst.getParent()->getParent();
LLVMContext &Ctx = F->getContext();
emitOptimizationRemark(
Ctx, DEBUG_TYPE, *F, DLoc,
Twine("Applied ") + Twine(*R) + " samples from profile (offset: " +
Twine(LineOffset) +
((Discriminator) ? Twine(".") + Twine(Discriminator) : "") + ")");
}
DEBUG(dbgs() << " " << Lineno << "." << DIL->getDiscriminator() << ":"
<< Inst << " (line offset: " << Lineno - HeaderLineno << "."
<< DIL->getDiscriminator() << " - weight: " << R.get()
<< ")\n");
}
return R;
}
/// \brief Compute and store the weights of every basic block.
///
/// This populates the BlockWeights map by computing
/// the weights of every basic block in the CFG.
///
/// \param F The function to query.
bool SampleProfileLoader::computeBlockWeights(Function &F) {
bool Changed = false;
DEBUG(dbgs() << "Block weights\n");
for (const auto &BB : F) {
ErrorOr<uint64_t> Weight = getBlockWeight(&BB);
if (Weight) {
BlockWeights[&BB] = Weight.get();
VisitedBlocks.insert(&BB);
Changed = true;
}
DEBUG(printBlockWeight(dbgs(), &BB));
}
return Changed;
}
LLVMBool LLVMParseBitcodeInContext2(LLVMContextRef ContextRef,
LLVMMemoryBufferRef MemBuf,
LLVMModuleRef *OutModule) {
MemoryBufferRef Buf = unwrap(MemBuf)->getMemBufferRef();
LLVMContext &Ctx = *unwrap(ContextRef);
ErrorOr<std::unique_ptr<Module>> ModuleOrErr = parseBitcodeFile(Buf, Ctx);
if (ModuleOrErr.getError()) {
*OutModule = wrap((Module *)nullptr);
return 1;
}
*OutModule = wrap(ModuleOrErr.get().release());
return 0;
}
static bool readLocationInfo(LocationInfoTy &LocationInfo) {
ErrorOr<std::unique_ptr<MemoryBuffer>> Buf =
MemoryBuffer::getFileOrSTDIN(InputFileName);
if (std::error_code EC = Buf.getError()) {
errs() << "error: Can't open file " << InputFileName << ": " <<
EC.message() << "\n";
return false;
}
SourceMgr SM;
yaml::Stream Stream(Buf.get()->getBuffer(), SM);
collectLocationInfo(Stream, LocationInfo);
return true;
}
static bool linkFiles(const char *argv0, LLVMContext &Context, Linker &L,
const cl::list<std::string> &Files,
unsigned Flags) {
// Filter out flags that don't apply to the first file we load.
unsigned ApplicableFlags = Flags & Linker::Flags::OverrideFromSrc;
for (const auto &File : Files) {
std::unique_ptr<Module> M = loadFile(argv0, File, Context);
if (!M.get()) {
errs() << argv0 << ": error loading file '" << File << "'\n";
return false;
}
// Note that when ODR merging types cannot verify input files in here When
// doing that debug metadata in the src module might already be pointing to
// the destination.
if (DisableDITypeMap && verifyModule(*M, &errs())) {
errs() << argv0 << ": " << File << ": error: input module is broken!\n";
return false;
}
// If a module summary index is supplied, load it so linkInModule can treat
// local functions/variables as exported and promote if necessary.
if (!SummaryIndex.empty()) {
ErrorOr<std::unique_ptr<ModuleSummaryIndex>> IndexOrErr =
llvm::getModuleSummaryIndexForFile(SummaryIndex, diagnosticHandler);
std::error_code EC = IndexOrErr.getError();
if (EC) {
errs() << EC.message() << '\n';
return false;
}
auto Index = std::move(IndexOrErr.get());
// Promotion
if (renameModuleForThinLTO(*M, *Index))
return true;
}
if (Verbose)
errs() << "Linking in '" << File << "'\n";
if (L.linkInModule(std::move(M), ApplicableFlags))
return false;
// All linker flags apply to linking of subsequent files.
ApplicableFlags = Flags;
}
return true;
}
static void dumpInput(StringRef File) {
// Attempt to open the binary.
ErrorOr<OwningBinary<Binary>> BinaryOrErr = createBinary(File);
if (std::error_code EC = BinaryOrErr.getError()) {
reportError(File, EC);
return;
}
Binary &Binary = *BinaryOrErr.get().getBinary();
if (Archive *Arc = dyn_cast<Archive>(&Binary))
dumpArchive(Arc);
else if (ObjectFile *Obj = dyn_cast<ObjectFile>(&Binary))
dumpCXXData(Obj);
else
reportError(File, cxxdump_error::unrecognized_file_format);
}
// Implement the 't' operation. This function prints out just
// the file names of each of the members. However, if verbose mode is requested
// ('v' modifier) then the file type, permission mode, user, group, size, and
// modification time are also printed.
static void doDisplayTable(StringRef Name, const object::Archive::Child &C) {
if (Verbose) {
sys::fs::perms Mode = C.getAccessMode();
printMode((Mode >> 6) & 007);
printMode((Mode >> 3) & 007);
printMode(Mode & 007);
outs() << ' ' << C.getUID();
outs() << '/' << C.getGID();
ErrorOr<uint64_t> Size = C.getSize();
failIfError(Size.getError());
outs() << ' ' << format("%6llu", Size.get());
outs() << ' ' << C.getLastModified().str();
outs() << ' ';
}
outs() << Name << "\n";
}
Expected<OwningBinary<ObjectFile>>
ObjectFile::createObjectFile(StringRef ObjectPath) {
ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
MemoryBuffer::getFile(ObjectPath);
if (std::error_code EC = FileOrErr.getError())
return errorCodeToError(EC);
std::unique_ptr<MemoryBuffer> Buffer = std::move(FileOrErr.get());
Expected<std::unique_ptr<ObjectFile>> ObjOrErr =
createObjectFile(Buffer->getMemBufferRef());
if (Error Err = ObjOrErr.takeError())
return std::move(Err);
std::unique_ptr<ObjectFile> Obj = std::move(ObjOrErr.get());
return OwningBinary<ObjectFile>(std::move(Obj), std::move(Buffer));
}
Expected<std::unique_ptr<IRObjectFile>>
llvm::object::IRObjectFile::create(MemoryBufferRef Object,
LLVMContext &Context) {
ErrorOr<MemoryBufferRef> BCOrErr = findBitcodeInMemBuffer(Object);
if (!BCOrErr)
return errorCodeToError(BCOrErr.getError());
Expected<std::unique_ptr<Module>> MOrErr =
getLazyBitcodeModule(*BCOrErr, Context,
/*ShouldLazyLoadMetadata*/ true);
if (!MOrErr)
return MOrErr.takeError();
std::unique_ptr<Module> &M = MOrErr.get();
return llvm::make_unique<IRObjectFile>(BCOrErr.get(), std::move(M));
}
Archive::child_iterator Archive::findSym(StringRef name) const {
Archive::symbol_iterator bs = symbol_begin();
Archive::symbol_iterator es = symbol_end();
for (; bs != es; ++bs) {
StringRef SymName = bs->getName();
if (SymName == name) {
ErrorOr<Archive::child_iterator> ResultOrErr = bs->getMember();
// FIXME: Should we really eat the error?
if (ResultOrErr.getError())
return child_end();
return ResultOrErr.get();
}
}
return child_end();
}
IRObjectFile::IRObjectFile(MemoryBuffer *Object, error_code &EC,
LLVMContext &Context, bool BufferOwned)
: SymbolicFile(Binary::ID_IR, Object, BufferOwned) {
ErrorOr<Module*> MOrErr = parseBitcodeFile(Object, Context);
if ((EC = MOrErr.getError()))
return;
M.reset(MOrErr.get());
// If we have a DataLayout, setup a mangler.
const DataLayout *DL = M->getDataLayout();
if (!DL)
return;
Mang.reset(new Mangler(DL));
}
LLVMBool LLVMParseBitcodeInContext(LLVMContextRef ContextRef,
LLVMMemoryBufferRef MemBuf,
LLVMModuleRef *OutModule,
char **OutMessage) {
ErrorOr<Module *> ModuleOrErr =
parseBitcodeFile(unwrap(MemBuf)->getMemBufferRef(), *unwrap(ContextRef));
if (std::error_code EC = ModuleOrErr.getError()) {
if (OutMessage)
*OutMessage = strdup(EC.message().c_str());
*OutModule = wrap((Module*)nullptr);
return 1;
}
*OutModule = wrap(ModuleOrErr.get());
return 0;
}
static std::unique_ptr<LTOModule>
getLocalLTOModule(StringRef Path, std::unique_ptr<MemoryBuffer> &Buffer,
const TargetOptions &Options) {
ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOrErr =
MemoryBuffer::getFile(Path);
error(BufferOrErr, "error loading file '" + Path + "'");
Buffer = std::move(BufferOrErr.get());
CurrentActivity = ("loading file '" + Path + "'").str();
std::unique_ptr<LLVMContext> Context = llvm::make_unique<LLVMContext>();
Context->setDiagnosticHandler(diagnosticHandlerWithContext, nullptr, true);
ErrorOr<std::unique_ptr<LTOModule>> Ret = LTOModule::createInLocalContext(
std::move(Context), Buffer->getBufferStart(), Buffer->getBufferSize(),
Options, Path);
CurrentActivity = "";
return std::move(*Ret);
}
/// @brief Dumps each object file in \a Arc;
static void dumpArchive(const Archive *Arc) {
for (const auto &Child : Arc->children()) {
ErrorOr<std::unique_ptr<Binary>> ChildOrErr = Child.getAsBinary();
if (std::error_code EC = ChildOrErr.getError()) {
// Ignore non-object files.
if (EC != object_error::invalid_file_type)
reportError(Arc->getFileName(), EC.message());
continue;
}
if (ObjectFile *Obj = dyn_cast<ObjectFile>(&*ChildOrErr.get()))
dumpObject(Obj);
else
reportError(Arc->getFileName(), readobj_error::unrecognized_file_format);
}
}
// Parse module summary index in the given memory buffer.
// Return new ModuleSummaryIndexObjectFile instance containing parsed
// module summary/index.
Expected<std::unique_ptr<ModuleSummaryIndexObjectFile>>
ModuleSummaryIndexObjectFile::create(MemoryBufferRef Object) {
ErrorOr<MemoryBufferRef> BCOrErr = findBitcodeInMemBuffer(Object);
if (!BCOrErr)
return errorCodeToError(BCOrErr.getError());
Expected<std::unique_ptr<ModuleSummaryIndex>> IOrErr =
getModuleSummaryIndex(BCOrErr.get());
if (!IOrErr)
return IOrErr.takeError();
std::unique_ptr<ModuleSummaryIndex> Index = std::move(IOrErr.get());
return llvm::make_unique<ModuleSummaryIndexObjectFile>(Object,
std::move(Index));
}
static ErrorOr<StringRef>
findFile(ELFLinkingContext &ctx, StringRef path, bool dashL) {
// If the path was referred to by using a -l argument, let's search
// for the file in the search path.
if (dashL) {
ErrorOr<StringRef> pathOrErr = ctx.searchLibrary(path);
if (std::error_code ec = pathOrErr.getError())
return make_dynamic_error_code(
Twine("Unable to find library -l") + path + ": " + ec.message());
path = pathOrErr.get();
}
if (!llvm::sys::fs::exists(path))
return make_dynamic_error_code(
Twine("lld: cannot find file ") + path);
return path;
}