#include "llvm/Bitcode/ReaderWriter.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/LLVMContext.h"
+#include "llvm/IR/Metadata.h"
#include "llvm/IR/Module.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCInstrInfo.h"
#include "llvm/MC/MCParser/MCAsmParser.h"
+#include "llvm/MC/MCSection.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/MC/MCTargetAsmParser.h"
#include "llvm/MC/SubtargetFeature.h"
#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Host.h"
#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/Host.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/SourceMgr.h"
#include "llvm/Support/TargetRegistry.h"
#include "llvm/Support/TargetSelect.h"
#include "llvm/Support/system_error.h"
+#include "llvm/Target/TargetLowering.h"
+#include "llvm/Target/TargetLoweringObjectFile.h"
#include "llvm/Target/TargetRegisterInfo.h"
#include "llvm/Transforms/Utils/GlobalStatus.h"
using namespace llvm;
LTOModule::LTOModule(llvm::Module *m, llvm::TargetMachine *t)
: _module(m), _target(t),
- _context(_target->getMCAsmInfo(), _target->getRegisterInfo(), NULL),
- _mangler(t) {}
+ _context(_target->getMCAsmInfo(), _target->getRegisterInfo(), &ObjFileInfo),
+ _mangler(t->getDataLayout()) {
+ ObjFileInfo.InitMCObjectFileInfo(t->getTargetTriple(),
+ t->getRelocationModel(), t->getCodeModel(),
+ _context);
+}
/// isBitcodeFile - Returns 'true' if the file (or memory contents) is LLVM
/// bitcode.
LTOModule *LTOModule::makeLTOModule(const void *mem, size_t length,
TargetOptions options,
- std::string &errMsg) {
- OwningPtr<MemoryBuffer> buffer(makeBuffer(mem, length));
+ std::string &errMsg, StringRef path) {
+ OwningPtr<MemoryBuffer> buffer(makeBuffer(mem, length, path));
if (!buffer)
return NULL;
return makeLTOModule(buffer.take(), options, errMsg);
TargetOptions options,
std::string &errMsg) {
// parse bitcode buffer
- OwningPtr<Module> m(getLazyBitcodeModule(buffer, getGlobalContext(),
- &errMsg));
- if (!m) {
+ 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())
TargetMachine *target = march->createTargetMachine(TripleStr, CPU, FeatureStr,
options);
- m->MaterializeAllPermanently();
+ m->materializeAllPermanently();
LTOModule *Ret = new LTOModule(m.take(), target);
+
+ // We need a MCContext set up in order to get mangled names of private
+ // symbols. It is a bit odd that we need to report uses and definitions
+ // of private symbols, but it does look like ld64 expects to be informed
+ // of at least the ones with an 'l' prefix.
+ MCContext &Context = Ret->_context;
+ const TargetLoweringObjectFile &TLOF =
+ target->getTargetLowering()->getObjFileLowering();
+ const_cast<TargetLoweringObjectFile &>(TLOF).Initialize(Context, *target);
+
if (Ret->parseSymbols(errMsg)) {
delete Ret;
return NULL;
}
+ Ret->parseMetadata();
+
return Ret;
}
-/// makeBuffer - Create a MemoryBuffer from a memory range.
-MemoryBuffer *LTOModule::makeBuffer(const void *mem, size_t length) {
+/// Create a MemoryBuffer from a memory range with an optional name.
+MemoryBuffer *LTOModule::makeBuffer(const void *mem, size_t length,
+ StringRef name) {
const char *startPtr = (const char*)mem;
- return MemoryBuffer::getMemBuffer(StringRef(startPtr, length), "", false);
+ return MemoryBuffer::getMemBuffer(StringRef(startPtr, length), name, false);
}
/// objcClassNameFromExpression - Get string that the data pointer points to.
}
static bool canBeHidden(const GlobalValue *GV) {
+ // FIXME: this is duplicated with another static function in AsmPrinter.cpp
GlobalValue::LinkageTypes L = GV->getLinkage();
if (L != GlobalValue::LinkOnceODRLinkage)
if (GV->hasUnnamedAddr())
return true;
+ // If it is a non constant variable, it needs to be uniqued across shared
+ // objects.
+ if (const GlobalVariable *Var = dyn_cast<GlobalVariable>(GV)) {
+ if (!Var->isConstant())
+ return false;
+ }
+
GlobalStatus GS;
if (GlobalStatus::analyzeGlobal(GV, GS))
return false;
// string is owned by _defines
SmallString<64> Buffer;
- _mangler.getNameWithPrefix(Buffer, def);
+ _target->getTargetLowering()->getNameWithPrefix(Buffer, def, _mangler);
// set alignment part log2() can have rounding errors
uint32_t align = def->getAlignment();
return;
SmallString<64> name;
- _mangler.getNameWithPrefix(name, decl);
+ _target->getTargetLowering()->getNameWithPrefix(name, decl, _mangler);
StringMap<NameAndAttributes>::value_type &entry =
_undefines.GetOrCreateValue(name);
}
namespace {
+
class RecordStreamer : public MCStreamer {
public:
enum State { NeverSeen, Global, Defined, DefinedGlobal, Used };
return Symbols.end();
}
- RecordStreamer(MCContext &Context) : MCStreamer(Context, 0) {}
+ RecordStreamer(MCContext &Context) : MCStreamer(Context) {}
- virtual void EmitInstruction(const MCInst &Inst) {
+ virtual void EmitInstruction(const MCInst &Inst, const MCSubtargetInfo &STI) {
// Scan for values.
for (unsigned i = Inst.getNumOperands(); i--; )
if (Inst.getOperand(i).isExpr())
// Noop calls.
virtual void ChangeSection(const MCSection *Section,
const MCExpr *Subsection) {}
- virtual void InitToTextSection() {}
- virtual void InitSections() {}
virtual void EmitAssemblerFlag(MCAssemblerFlag Flag) {}
virtual void EmitThumbFunc(MCSymbol *Func) {}
virtual void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {}
return false;
}
+
+/// parseMetadata - Parse metadata from the module
+void LTOModule::parseMetadata() {
+ // Linker Options
+ if (Value *Val = _module->getModuleFlag("Linker Options")) {
+ MDNode *LinkerOptions = cast<MDNode>(Val);
+ for (unsigned i = 0, e = LinkerOptions->getNumOperands(); i != e; ++i) {
+ MDNode *MDOptions = cast<MDNode>(LinkerOptions->getOperand(i));
+ for (unsigned ii = 0, ie = MDOptions->getNumOperands(); ii != ie; ++ii) {
+ MDString *MDOption = cast<MDString>(MDOptions->getOperand(ii));
+ StringRef Op = _linkeropt_strings.
+ GetOrCreateValue(MDOption->getString()).getKey();
+ StringRef DepLibName = _target->getTargetLowering()->
+ getObjFileLowering().getDepLibFromLinkerOpt(Op);
+ if (!DepLibName.empty())
+ _deplibs.push_back(DepLibName.data());
+ else if (!Op.empty())
+ _linkeropts.push_back(Op.data());
+ }
+ }
+ }
+
+ // Add other interesting metadata here.
+}
projects / oota-llvm.git / blobdiff