return Mang->getSymbol(GV);
break;
case dwarf::DW_EH_PE_pcrel: {
- Twine FullName = StringRef("DW.ref.") + Mang->getSymbol(GV)->getName();
- return getContext().GetOrCreateSymbol(FullName);
+ return getContext().GetOrCreateSymbol(StringRef("DW.ref.") +
+ Mang->getSymbol(GV)->getName());
break;
}
}
void TargetLoweringObjectFileELF::emitPersonalityValue(MCStreamer &Streamer,
const TargetMachine &TM,
const MCSymbol *Sym) const {
- Twine FullName = StringRef("DW.ref.") + Sym->getName();
- MCSymbol *Label = getContext().GetOrCreateSymbol(FullName);
+ SmallString<64> NameData("DW.ref.");
+ NameData += Sym->getName();
+ MCSymbol *Label = getContext().GetOrCreateSymbol(NameData);
Streamer.EmitSymbolAttribute(Label, MCSA_Hidden);
Streamer.EmitSymbolAttribute(Label, MCSA_Weak);
- Twine SectionName = StringRef(".data.") + Label->getName();
- SmallString<64> NameData;
- SectionName.toVector(NameData);
+ StringRef Prefix = ".data.";
+ NameData.insert(NameData.begin(), Prefix.begin(), Prefix.end());
unsigned Flags = ELF::SHF_ALLOC | ELF::SHF_WRITE | ELF::SHF_GROUP;
const MCSection *Sec = getContext().getELFSection(NameData,
ELF::SHT_PROGBITS,
static SectionKind
getELFKindForNamedSection(StringRef Name, SectionKind K) {
- // FIXME: Why is this here? Codegen is should not be in the business
- // of figuring section flags. If the user wrote section(".eh_frame"),
- // we should just pass that to MC which will defer to the assembly
- // or use its default if producing an object file.
+ // N.B.: The defaults used in here are no the same ones used in MC.
+ // We follow gcc, MC follows gas. For example, given ".section .eh_frame",
+ // both gas and MC will produce a section with no flags. Given
+ // section(".eh_frame") gcc will produce
+ // .section .eh_frame,"a",@progbits
if (Name.empty() || Name[0] != '.') return K;
// Some lame default implementation based on some magic section names.
Name.startswith(".llvm.linkonce.tb."))
return SectionKind::getThreadBSS();
- if (Name == ".eh_frame")
- return SectionKind::getDataRel();
-
return K;
}
void TargetLoweringObjectFileMachO::Initialize(MCContext &Ctx,
const TargetMachine &TM) {
- // _foo.eh symbols are currently always exported so that the linker knows
- // about them. This is not necessary on 10.6 and later, but it
- // doesn't hurt anything.
- // FIXME: I need to get this from Triple.
- IsFunctionEHSymbolGlobal = true;
IsFunctionEHFrameSymbolPrivate = false;
SupportsWeakOmittedEHFrame = false;
// Exception Handling.
LSDASection = getContext().getMachOSection("__TEXT", "__gcc_except_tab", 0,
SectionKind::getReadOnlyWithRel());
+
+ if (T.isMacOSX() && !T.isMacOSXVersionLT(10, 6))
+ CompactUnwindSection =
+ getContext().getMachOSection("__LD", "__compact_unwind",
+ MCSectionMachO::S_ATTR_DEBUG,
+ SectionKind::getReadOnly());
+
// Debug Information.
DwarfAbbrevSection =
getContext().getMachOSection("__DWARF", "__debug_abbrev",
return DW_EH_PE_pcrel;
}
-unsigned TargetLoweringObjectFileMachO::getFDEEncoding() const {
+unsigned TargetLoweringObjectFileMachO::getFDEEncoding(bool CFI) const {
return DW_EH_PE_pcrel;
}
getContext().getCOFFSection(".drectve",
COFF::IMAGE_SCN_LNK_INFO,
SectionKind::getMetadata());
+
+ PDataSection =
+ getContext().getCOFFSection(".pdata",
+ COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
+ COFF::IMAGE_SCN_MEM_READ |
+ COFF::IMAGE_SCN_MEM_WRITE,
+ SectionKind::getDataRel());
+
+ XDataSection =
+ getContext().getCOFFSection(".xdata",
+ COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
+ COFF::IMAGE_SCN_MEM_READ |
+ COFF::IMAGE_SCN_MEM_WRITE,
+ SectionKind::getDataRel());
}
const MCSection *TargetLoweringObjectFileCOFF::getEHFrameSection() const {
SectionKind::getDataRel());
}
+const MCSection *TargetLoweringObjectFileCOFF::getWin64EHFuncTableSection(
+ StringRef suffix) const {
+ if (suffix == "")
+ return PDataSection;
+ return getContext().getCOFFSection((".pdata"+suffix).str(),
+ COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
+ COFF::IMAGE_SCN_MEM_READ |
+ COFF::IMAGE_SCN_MEM_WRITE,
+ SectionKind::getDataRel());
+}
+
+const MCSection *TargetLoweringObjectFileCOFF::getWin64EHTableSection(
+ StringRef suffix) const {
+ if (suffix == "")
+ return XDataSection;
+ return getContext().getCOFFSection((".xdata"+suffix).str(),
+ COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
+ COFF::IMAGE_SCN_MEM_READ |
+ COFF::IMAGE_SCN_MEM_WRITE,
+ SectionKind::getDataRel());
+}
+
static unsigned
getCOFFSectionFlags(SectionKind K) {