//===----------------------------------------------------------------------===//
#include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
-#include "llvm/Constants.h"
-#include "llvm/DerivedTypes.h"
-#include "llvm/Function.h"
-#include "llvm/GlobalVariable.h"
-#include "llvm/Module.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/ADT/Triple.h"
#include "llvm/CodeGen/MachineModuleInfoImpls.h"
+#include "llvm/IR/Constants.h"
+#include "llvm/IR/DataLayout.h"
+#include "llvm/IR/DerivedTypes.h"
+#include "llvm/IR/Function.h"
+#include "llvm/IR/GlobalVariable.h"
+#include "llvm/IR/Module.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
-#include "llvm/MC/MCSectionMachO.h"
-#include "llvm/MC/MCSectionELF.h"
#include "llvm/MC/MCSectionCOFF.h"
+#include "llvm/MC/MCSectionELF.h"
+#include "llvm/MC/MCSectionMachO.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbol.h"
-#include "llvm/Target/Mangler.h"
-#include "llvm/DataLayout.h"
-#include "llvm/Target/TargetMachine.h"
-#include "llvm/Target/TargetOptions.h"
#include "llvm/Support/Dwarf.h"
#include "llvm/Support/ELF.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/StringExtras.h"
-#include "llvm/ADT/Triple.h"
+#include "llvm/Target/Mangler.h"
+#include "llvm/Target/TargetMachine.h"
using namespace llvm;
using namespace dwarf;
Streamer.EmitSymbolValue(Sym, Size);
}
+const MCExpr *TargetLoweringObjectFileELF::
+getTTypeGlobalReference(const GlobalValue *GV, Mangler *Mang,
+ MachineModuleInfo *MMI, unsigned Encoding,
+ MCStreamer &Streamer) const {
+
+ if (Encoding & dwarf::DW_EH_PE_indirect) {
+ MachineModuleInfoELF &ELFMMI = MMI->getObjFileInfo<MachineModuleInfoELF>();
+
+ SmallString<128> Name;
+ Mang->getNameWithPrefix(Name, GV, true);
+ Name += ".DW.stub";
+
+ // Add information about the stub reference to ELFMMI so that the stub
+ // gets emitted by the asmprinter.
+ MCSymbol *SSym = getContext().GetOrCreateSymbol(Name.str());
+ MachineModuleInfoImpl::StubValueTy &StubSym = ELFMMI.getGVStubEntry(SSym);
+ if (StubSym.getPointer() == 0) {
+ MCSymbol *Sym = Mang->getSymbol(GV);
+ StubSym = MachineModuleInfoImpl::StubValueTy(Sym, !GV->hasLocalLinkage());
+ }
+
+ return TargetLoweringObjectFile::
+ getTTypeReference(MCSymbolRefExpr::Create(SSym, getContext()),
+ Encoding & ~dwarf::DW_EH_PE_indirect, Streamer);
+ }
+
+ return TargetLoweringObjectFile::
+ getTTypeGlobalReference(GV, Mang, MMI, Encoding, Streamer);
+}
+
static SectionKind
getELFKindForNamedSection(StringRef Name, SectionKind K) {
// N.B.: The defaults used in here are no the same ones used in MC.
return DataRelROSection;
}
-const MCExpr *TargetLoweringObjectFileELF::
-getExprForDwarfGlobalReference(const GlobalValue *GV, Mangler *Mang,
- MachineModuleInfo *MMI,
- unsigned Encoding, MCStreamer &Streamer) const {
-
- if (Encoding & dwarf::DW_EH_PE_indirect) {
- MachineModuleInfoELF &ELFMMI = MMI->getObjFileInfo<MachineModuleInfoELF>();
-
- SmallString<128> Name;
- Mang->getNameWithPrefix(Name, GV, true);
- Name += ".DW.stub";
-
- // Add information about the stub reference to ELFMMI so that the stub
- // gets emitted by the asmprinter.
- MCSymbol *SSym = getContext().GetOrCreateSymbol(Name.str());
- MachineModuleInfoImpl::StubValueTy &StubSym = ELFMMI.getGVStubEntry(SSym);
- if (StubSym.getPointer() == 0) {
- MCSymbol *Sym = Mang->getSymbol(GV);
- StubSym = MachineModuleInfoImpl::StubValueTy(Sym, !GV->hasLocalLinkage());
- }
-
- return TargetLoweringObjectFile::
- getExprForDwarfReference(SSym, Encoding & ~dwarf::DW_EH_PE_indirect, Streamer);
- }
-
- return TargetLoweringObjectFile::
- getExprForDwarfGlobalReference(GV, Mang, MMI, Encoding, Streamer);
-}
-
const MCSection *
TargetLoweringObjectFileELF::getStaticCtorSection(unsigned Priority) const {
// The default scheme is .ctor / .dtor, so we have to invert the priority
// MachO
//===----------------------------------------------------------------------===//
-/// emitModuleFlags - Emit the module flags that specify the garbage collection
-/// information.
+/// emitModuleFlags - Perform code emission for module flags.
void TargetLoweringObjectFileMachO::
emitModuleFlags(MCStreamer &Streamer,
ArrayRef<Module::ModuleFlagEntry> ModuleFlags,
Mangler *Mang, const TargetMachine &TM) const {
unsigned VersionVal = 0;
unsigned ImageInfoFlags = 0;
+ MDNode *LinkerOptions = 0;
StringRef SectionVal;
for (ArrayRef<Module::ModuleFlagEntry>::iterator
StringRef Key = MFE.Key->getString();
Value *Val = MFE.Val;
- if (Key == "Objective-C Image Info Version")
+ if (Key == "Objective-C Image Info Version") {
VersionVal = cast<ConstantInt>(Val)->getZExtValue();
- else if (Key == "Objective-C Garbage Collection" ||
- Key == "Objective-C GC Only" ||
- Key == "Objective-C Is Simulated")
+ } else if (Key == "Objective-C Garbage Collection" ||
+ Key == "Objective-C GC Only" ||
+ Key == "Objective-C Is Simulated") {
ImageInfoFlags |= cast<ConstantInt>(Val)->getZExtValue();
- else if (Key == "Objective-C Image Info Section")
+ } else if (Key == "Objective-C Image Info Section") {
SectionVal = cast<MDString>(Val)->getString();
+ } else if (Key == "Linker Options") {
+ LinkerOptions = cast<MDNode>(Val);
+ }
+ }
+
+ // Emit the linker options if present.
+ if (LinkerOptions) {
+ for (unsigned i = 0, e = LinkerOptions->getNumOperands(); i != e; ++i) {
+ MDNode *MDOptions = cast<MDNode>(LinkerOptions->getOperand(i));
+ SmallVector<std::string, 4> StrOptions;
+
+ // Convert to strings.
+ for (unsigned ii = 0, ie = MDOptions->getNumOperands(); ii != ie; ++ii) {
+ MDString *MDOption = cast<MDString>(MDOptions->getOperand(ii));
+ StrOptions.push_back(MDOption->getString());
+ }
+
+ Streamer.EmitLinkerOptions(StrOptions);
+ }
}
// The section is mandatory. If we don't have it, then we don't have GC info.
}
const MCExpr *TargetLoweringObjectFileMachO::
-getExprForDwarfGlobalReference(const GlobalValue *GV, Mangler *Mang,
- MachineModuleInfo *MMI, unsigned Encoding,
- MCStreamer &Streamer) const {
+getTTypeGlobalReference(const GlobalValue *GV, Mangler *Mang,
+ MachineModuleInfo *MMI, unsigned Encoding,
+ MCStreamer &Streamer) const {
// The mach-o version of this method defaults to returning a stub reference.
if (Encoding & DW_EH_PE_indirect) {
}
return TargetLoweringObjectFile::
- getExprForDwarfReference(SSym, Encoding & ~dwarf::DW_EH_PE_indirect, Streamer);
+ getTTypeReference(MCSymbolRefExpr::Create(SSym, getContext()),
+ Encoding & ~dwarf::DW_EH_PE_indirect, Streamer);
}
return TargetLoweringObjectFile::
- getExprForDwarfGlobalReference(GV, Mang, MMI, Encoding, Streamer);
+ getTTypeGlobalReference(GV, Mang, MMI, Encoding, Streamer);
}
MCSymbol *TargetLoweringObjectFileMachO::
const MCSection *TargetLoweringObjectFileCOFF::
getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind,
Mangler *Mang, const TargetMachine &TM) const {
- return getContext().getCOFFSection(GV->getSection(),
- getCOFFSectionFlags(Kind),
+ int Selection = 0;
+ unsigned Characteristics = getCOFFSectionFlags(Kind);
+ SmallString<128> Name(GV->getSection().c_str());
+ if (GV->isWeakForLinker()) {
+ Selection = COFF::IMAGE_COMDAT_SELECT_ANY;
+ Characteristics |= COFF::IMAGE_SCN_LNK_COMDAT;
+ MCSymbol *Sym = Mang->getSymbol(GV);
+ Name.append("$");
+ Name.append(Sym->getName().begin() + 1, Sym->getName().end());
+ }
+ return getContext().getCOFFSection(Name,
+ Characteristics,
+ Selection,
Kind);
}
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