#include "llvm/IR/GlobalVariable.h"
#include "llvm/IR/Mangler.h"
#include "llvm/IR/Module.h"
+#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCSectionCOFF.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSymbolELF.h"
#include "llvm/MC/MCValue.h"
+#include "llvm/Support/COFF.h"
#include "llvm/Support/Dwarf.h"
#include "llvm/Support/ELF.h"
#include "llvm/Support/ErrorHandling.h"
report_fatal_error("We do not support this DWARF encoding yet!");
}
-void TargetLoweringObjectFileELF::emitPersonalityValue(MCStreamer &Streamer,
- const TargetMachine &TM,
- const MCSymbol *Sym) const {
+void TargetLoweringObjectFileELF::emitPersonalityValue(
+ MCStreamer &Streamer, const DataLayout &DL, const MCSymbol *Sym) const {
SmallString<64> NameData("DW.ref.");
NameData += Sym->getName();
MCSymbolELF *Label =
unsigned Flags = ELF::SHF_ALLOC | ELF::SHF_WRITE | ELF::SHF_GROUP;
MCSection *Sec = getContext().getELFSection(NameData, ELF::SHT_PROGBITS,
Flags, 0, Label->getName());
- unsigned Size = TM.getDataLayout()->getPointerSize();
+ unsigned Size = DL.getPointerSize();
Streamer.SwitchSection(Sec);
- Streamer.EmitValueToAlignment(TM.getDataLayout()->getPointerABIAlignment());
+ Streamer.EmitValueToAlignment(DL.getPointerABIAlignment());
Streamer.EmitSymbolAttribute(Label, MCSA_ELF_TypeObject);
const MCExpr *E = MCConstantExpr::create(Size, getContext());
Streamer.emitELFSize(Label, E);
// We also need alignment here.
// FIXME: this is getting the alignment of the character, not the
// alignment of the global!
- unsigned Align =
- TM.getDataLayout()->getPreferredAlignment(cast<GlobalVariable>(GV));
+ unsigned Align = GV->getParent()->getDataLayout().getPreferredAlignment(
+ cast<GlobalVariable>(GV));
std::string SizeSpec = ".rodata.str" + utostr(EntrySize) + ".";
Name = SizeSpec + utostr(Align);
/// Given a mergeable constant with the specified size and relocation
/// information, return a section that it should be placed in.
-MCSection *
-TargetLoweringObjectFileELF::getSectionForConstant(SectionKind Kind,
- const Constant *C) const {
+MCSection *TargetLoweringObjectFileELF::getSectionForConstant(
+ const DataLayout &DL, SectionKind Kind, const Constant *C) const {
if (Kind.isMergeableConst4() && MergeableConst4Section)
return MergeableConst4Section;
if (Kind.isMergeableConst8() && MergeableConst8Section)
// FIXME: Alignment check should be handled by section classifier.
if (Kind.isMergeable1ByteCString() &&
- TM.getDataLayout()->getPreferredAlignment(cast<GlobalVariable>(GV)) < 32)
+ GV->getParent()->getDataLayout().getPreferredAlignment(
+ cast<GlobalVariable>(GV)) < 32)
return CStringSection;
// Do not put 16-bit arrays in the UString section if they have an
// externally visible label, this runs into issues with certain linker
// versions.
if (Kind.isMergeable2ByteCString() && !GV->hasExternalLinkage() &&
- TM.getDataLayout()->getPreferredAlignment(cast<GlobalVariable>(GV)) < 32)
+ GV->getParent()->getDataLayout().getPreferredAlignment(
+ cast<GlobalVariable>(GV)) < 32)
return UStringSection;
// With MachO only variables whose corresponding symbol starts with 'l' or
return DataSection;
}
-MCSection *
-TargetLoweringObjectFileMachO::getSectionForConstant(SectionKind Kind,
- const Constant *C) const {
+MCSection *TargetLoweringObjectFileMachO::getSectionForConstant(
+ const DataLayout &DL, SectionKind Kind, const Constant *C) const {
// If this constant requires a relocation, we have to put it in the data
// segment, not in the text segment.
if (Kind.isDataRel() || Kind.isReadOnlyWithRel())
const MCExpr *TargetLoweringObjectFileMachO::getIndirectSymViaGOTPCRel(
const MCSymbol *Sym, const MCValue &MV, int64_t Offset,
MachineModuleInfo *MMI, MCStreamer &Streamer) const {
- // Although MachO 32-bit targets do not explictly have a GOTPCREL relocation
+ // Although MachO 32-bit targets do not explicitly have a GOTPCREL relocation
// as 64-bit do, we replace the GOT equivalent by accessing the final symbol
// through a non_lazy_ptr stub instead. One advantage is that it allows the
// computation of deltas to final external symbols. Example:
// non_lazy_ptr stubs.
SmallString<128> Name;
StringRef Suffix = "$non_lazy_ptr";
- Name += DL->getPrivateGlobalPrefix();
+ Name += MMI->getModule()->getDataLayout().getPrivateGlobalPrefix();
Name += Sym->getName();
Name += Suffix;
MCSymbol *Stub = Ctx.getOrCreateSymbol(Name);
return MCBinaryExpr::createSub(LHS, RHS, Ctx);
}
+static bool canUsePrivateLabel(const MCAsmInfo &AsmInfo,
+ const MCSection &Section) {
+ if (!AsmInfo.isSectionAtomizableBySymbols(Section))
+ return true;
+
+ // If it is not dead stripped, it is safe to use private labels.
+ const MCSectionMachO &SMO = cast<MCSectionMachO>(Section);
+ if (SMO.hasAttribute(MachO::S_ATTR_NO_DEAD_STRIP))
+ return true;
+
+ return false;
+}
+
+void TargetLoweringObjectFileMachO::getNameWithPrefix(
+ SmallVectorImpl<char> &OutName, const GlobalValue *GV, Mangler &Mang,
+ const TargetMachine &TM) const {
+ SectionKind GVKind = TargetLoweringObjectFile::getKindForGlobal(GV, TM);
+ const MCSection *TheSection = SectionForGlobal(GV, GVKind, Mang, TM);
+ bool CannotUsePrivateLabel =
+ !canUsePrivateLabel(*TM.getMCAsmInfo(), *TheSection);
+ Mang.getNameWithPrefix(OutName, GV, CannotUsePrivateLabel);
+}
+
//===----------------------------------------------------------------------===//
// COFF
//===----------------------------------------------------------------------===//
COMDATSymName, Selection);
} else {
SmallString<256> TmpData;
- getNameWithPrefix(TmpData, GV, /*CannotUsePrivateLabel=*/true, Mang, TM);
+ Mang.getNameWithPrefix(TmpData, GV, /*CannotUsePrivateLabel=*/true);
return getContext().getCOFFSection(Name, Characteristics, Kind, TmpData,
Selection);
}
}
void TargetLoweringObjectFileCOFF::getNameWithPrefix(
- SmallVectorImpl<char> &OutName, const GlobalValue *GV,
- bool CannotUsePrivateLabel, Mangler &Mang, const TargetMachine &TM) const {
+ SmallVectorImpl<char> &OutName, const GlobalValue *GV, Mangler &Mang,
+ const TargetMachine &TM) const {
+ bool CannotUsePrivateLabel = false;
if (GV->hasPrivateLinkage() &&
((isa<Function>(GV) && TM.getFunctionSections()) ||
(isa<GlobalVariable>(GV) && TM.getDataSections())))
raw_string_ostream FlagOS(Flag);
Mang.getNameWithPrefix(FlagOS, GV, false);
FlagOS.flush();
- if (Flag[0] == DL->getGlobalPrefix())
+ if (Flag[0] == GV->getParent()->getDataLayout().getGlobalPrefix())
OS << Flag.substr(1);
else
OS << Flag;
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