#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCSectionMachO.h"
#include "llvm/MC/MCSectionELF.h"
+#include "llvm/MC/MCSectionCOFF.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/Target/Mangler.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringExtras.h"
+#include "llvm/ADT/Triple.h"
using namespace llvm;
using namespace dwarf;
//===----------------------------------------------------------------------===//
// ELF
//===----------------------------------------------------------------------===//
-typedef StringMap<const MCSectionELF*> ELFUniqueMapTy;
-
-TargetLoweringObjectFileELF::~TargetLoweringObjectFileELF() {
- // If we have the section uniquing map, free it.
- delete (ELFUniqueMapTy*)UniquingMap;
-}
-
-const MCSection *TargetLoweringObjectFileELF::
-getELFSection(StringRef Section, unsigned Type, unsigned Flags,
- SectionKind Kind, bool IsExplicit) const {
- if (UniquingMap == 0)
- UniquingMap = new ELFUniqueMapTy();
- ELFUniqueMapTy &Map = *(ELFUniqueMapTy*)UniquingMap;
-
- // Do the lookup, if we have a hit, return it.
- const MCSectionELF *&Entry = Map[Section];
- if (Entry) return Entry;
-
- return Entry = MCSectionELF::Create(Section, Type, Flags, Kind, IsExplicit,
- getContext());
-}
void TargetLoweringObjectFileELF::Initialize(MCContext &Ctx,
const TargetMachine &TM) {
- if (UniquingMap != 0)
- ((ELFUniqueMapTy*)UniquingMap)->clear();
TargetLoweringObjectFile::Initialize(Ctx, TM);
BSSSection =
- getELFSection(".bss", MCSectionELF::SHT_NOBITS,
- MCSectionELF::SHF_WRITE | MCSectionELF::SHF_ALLOC,
- SectionKind::getBSS());
+ getContext().getELFSection(".bss", MCSectionELF::SHT_NOBITS,
+ MCSectionELF::SHF_WRITE |MCSectionELF::SHF_ALLOC,
+ SectionKind::getBSS());
TextSection =
- getELFSection(".text", MCSectionELF::SHT_PROGBITS,
- MCSectionELF::SHF_EXECINSTR | MCSectionELF::SHF_ALLOC,
- SectionKind::getText());
+ getContext().getELFSection(".text", MCSectionELF::SHT_PROGBITS,
+ MCSectionELF::SHF_EXECINSTR |
+ MCSectionELF::SHF_ALLOC,
+ SectionKind::getText());
DataSection =
- getELFSection(".data", MCSectionELF::SHT_PROGBITS,
- MCSectionELF::SHF_WRITE | MCSectionELF::SHF_ALLOC,
- SectionKind::getDataRel());
+ getContext().getELFSection(".data", MCSectionELF::SHT_PROGBITS,
+ MCSectionELF::SHF_WRITE |MCSectionELF::SHF_ALLOC,
+ SectionKind::getDataRel());
ReadOnlySection =
- getELFSection(".rodata", MCSectionELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC,
- SectionKind::getReadOnly());
+ getContext().getELFSection(".rodata", MCSectionELF::SHT_PROGBITS,
+ MCSectionELF::SHF_ALLOC,
+ SectionKind::getReadOnly());
TLSDataSection =
- getELFSection(".tdata", MCSectionELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_TLS |
- MCSectionELF::SHF_WRITE, SectionKind::getThreadData());
+ getContext().getELFSection(".tdata", MCSectionELF::SHT_PROGBITS,
+ MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_TLS |
+ MCSectionELF::SHF_WRITE,
+ SectionKind::getThreadData());
TLSBSSSection =
- getELFSection(".tbss", MCSectionELF::SHT_NOBITS,
- MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_TLS |
- MCSectionELF::SHF_WRITE, SectionKind::getThreadBSS());
+ getContext().getELFSection(".tbss", MCSectionELF::SHT_NOBITS,
+ MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_TLS |
+ MCSectionELF::SHF_WRITE,
+ SectionKind::getThreadBSS());
DataRelSection =
- getELFSection(".data.rel", MCSectionELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_WRITE,
- SectionKind::getDataRel());
+ getContext().getELFSection(".data.rel", MCSectionELF::SHT_PROGBITS,
+ MCSectionELF::SHF_ALLOC |MCSectionELF::SHF_WRITE,
+ SectionKind::getDataRel());
DataRelLocalSection =
- getELFSection(".data.rel.local", MCSectionELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_WRITE,
- SectionKind::getDataRelLocal());
+ getContext().getELFSection(".data.rel.local", MCSectionELF::SHT_PROGBITS,
+ MCSectionELF::SHF_ALLOC |MCSectionELF::SHF_WRITE,
+ SectionKind::getDataRelLocal());
DataRelROSection =
- getELFSection(".data.rel.ro", MCSectionELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_WRITE,
- SectionKind::getReadOnlyWithRel());
+ getContext().getELFSection(".data.rel.ro", MCSectionELF::SHT_PROGBITS,
+ MCSectionELF::SHF_ALLOC |MCSectionELF::SHF_WRITE,
+ SectionKind::getReadOnlyWithRel());
DataRelROLocalSection =
- getELFSection(".data.rel.ro.local", MCSectionELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_WRITE,
- SectionKind::getReadOnlyWithRelLocal());
+ getContext().getELFSection(".data.rel.ro.local", MCSectionELF::SHT_PROGBITS,
+ MCSectionELF::SHF_ALLOC |MCSectionELF::SHF_WRITE,
+ SectionKind::getReadOnlyWithRelLocal());
MergeableConst4Section =
- getELFSection(".rodata.cst4", MCSectionELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_MERGE,
- SectionKind::getMergeableConst4());
+ getContext().getELFSection(".rodata.cst4", MCSectionELF::SHT_PROGBITS,
+ MCSectionELF::SHF_ALLOC |MCSectionELF::SHF_MERGE,
+ SectionKind::getMergeableConst4());
MergeableConst8Section =
- getELFSection(".rodata.cst8", MCSectionELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_MERGE,
- SectionKind::getMergeableConst8());
+ getContext().getELFSection(".rodata.cst8", MCSectionELF::SHT_PROGBITS,
+ MCSectionELF::SHF_ALLOC |MCSectionELF::SHF_MERGE,
+ SectionKind::getMergeableConst8());
MergeableConst16Section =
- getELFSection(".rodata.cst16", MCSectionELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_MERGE,
- SectionKind::getMergeableConst16());
+ getContext().getELFSection(".rodata.cst16", MCSectionELF::SHT_PROGBITS,
+ MCSectionELF::SHF_ALLOC |MCSectionELF::SHF_MERGE,
+ SectionKind::getMergeableConst16());
StaticCtorSection =
- getELFSection(".ctors", MCSectionELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_WRITE,
- SectionKind::getDataRel());
+ getContext().getELFSection(".ctors", MCSectionELF::SHT_PROGBITS,
+ MCSectionELF::SHF_ALLOC |MCSectionELF::SHF_WRITE,
+ SectionKind::getDataRel());
StaticDtorSection =
- getELFSection(".dtors", MCSectionELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_WRITE,
- SectionKind::getDataRel());
+ getContext().getELFSection(".dtors", MCSectionELF::SHT_PROGBITS,
+ MCSectionELF::SHF_ALLOC |MCSectionELF::SHF_WRITE,
+ SectionKind::getDataRel());
// Exception Handling Sections.
// runtime hit for C++ apps. Either the contents of the LSDA need to be
// adjusted or this should be a data section.
LSDASection =
- getELFSection(".gcc_except_table", MCSectionELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC, SectionKind::getReadOnly());
+ getContext().getELFSection(".gcc_except_table", MCSectionELF::SHT_PROGBITS,
+ MCSectionELF::SHF_ALLOC,
+ SectionKind::getReadOnly());
EHFrameSection =
- getELFSection(".eh_frame", MCSectionELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_WRITE,
- SectionKind::getDataRel());
+ getContext().getELFSection(".eh_frame", MCSectionELF::SHT_PROGBITS,
+ MCSectionELF::SHF_ALLOC |MCSectionELF::SHF_WRITE,
+ SectionKind::getDataRel());
// Debug Info Sections.
DwarfAbbrevSection =
- getELFSection(".debug_abbrev", MCSectionELF::SHT_PROGBITS, 0,
- SectionKind::getMetadata());
+ getContext().getELFSection(".debug_abbrev", MCSectionELF::SHT_PROGBITS, 0,
+ SectionKind::getMetadata());
DwarfInfoSection =
- getELFSection(".debug_info", MCSectionELF::SHT_PROGBITS, 0,
- SectionKind::getMetadata());
+ getContext().getELFSection(".debug_info", MCSectionELF::SHT_PROGBITS, 0,
+ SectionKind::getMetadata());
DwarfLineSection =
- getELFSection(".debug_line", MCSectionELF::SHT_PROGBITS, 0,
- SectionKind::getMetadata());
+ getContext().getELFSection(".debug_line", MCSectionELF::SHT_PROGBITS, 0,
+ SectionKind::getMetadata());
DwarfFrameSection =
- getELFSection(".debug_frame", MCSectionELF::SHT_PROGBITS, 0,
- SectionKind::getMetadata());
+ getContext().getELFSection(".debug_frame", MCSectionELF::SHT_PROGBITS, 0,
+ SectionKind::getMetadata());
DwarfPubNamesSection =
- getELFSection(".debug_pubnames", MCSectionELF::SHT_PROGBITS, 0,
- SectionKind::getMetadata());
+ getContext().getELFSection(".debug_pubnames", MCSectionELF::SHT_PROGBITS, 0,
+ SectionKind::getMetadata());
DwarfPubTypesSection =
- getELFSection(".debug_pubtypes", MCSectionELF::SHT_PROGBITS, 0,
- SectionKind::getMetadata());
+ getContext().getELFSection(".debug_pubtypes", MCSectionELF::SHT_PROGBITS, 0,
+ SectionKind::getMetadata());
DwarfStrSection =
- getELFSection(".debug_str", MCSectionELF::SHT_PROGBITS, 0,
- SectionKind::getMetadata());
+ getContext().getELFSection(".debug_str", MCSectionELF::SHT_PROGBITS, 0,
+ SectionKind::getMetadata());
DwarfLocSection =
- getELFSection(".debug_loc", MCSectionELF::SHT_PROGBITS, 0,
- SectionKind::getMetadata());
+ getContext().getELFSection(".debug_loc", MCSectionELF::SHT_PROGBITS, 0,
+ SectionKind::getMetadata());
DwarfARangesSection =
- getELFSection(".debug_aranges", MCSectionELF::SHT_PROGBITS, 0,
- SectionKind::getMetadata());
+ getContext().getELFSection(".debug_aranges", MCSectionELF::SHT_PROGBITS, 0,
+ SectionKind::getMetadata());
DwarfRangesSection =
- getELFSection(".debug_ranges", MCSectionELF::SHT_PROGBITS, 0,
- SectionKind::getMetadata());
+ getContext().getELFSection(".debug_ranges", MCSectionELF::SHT_PROGBITS, 0,
+ SectionKind::getMetadata());
DwarfMacroInfoSection =
- getELFSection(".debug_macinfo", MCSectionELF::SHT_PROGBITS, 0,
- SectionKind::getMetadata());
+ getContext().getELFSection(".debug_macinfo", MCSectionELF::SHT_PROGBITS, 0,
+ SectionKind::getMetadata());
}
// Infer section flags from the section name if we can.
Kind = getELFKindForNamedSection(SectionName, Kind);
- return getELFSection(SectionName,
- getELFSectionType(SectionName, Kind),
- getELFSectionFlags(Kind), Kind, true);
+ return getContext().getELFSection(SectionName,
+ getELFSectionType(SectionName, Kind),
+ getELFSectionFlags(Kind), Kind, true);
}
static const char *getSectionPrefixForUniqueGlobal(SectionKind Kind) {
return ".gnu.linkonce.d.rel.ro.";
}
+/// getSectionPrefixForGlobal - Return the section prefix name used by options
+/// FunctionsSections and DataSections.
+static const char *getSectionPrefixForGlobal(SectionKind Kind) {
+ if (Kind.isText()) return ".text.";
+ if (Kind.isReadOnly()) return ".rodata.";
+
+ if (Kind.isThreadData()) return ".tdata.";
+ if (Kind.isThreadBSS()) return ".tbss.";
+
+ if (Kind.isDataNoRel()) return ".data.";
+ if (Kind.isDataRelLocal()) return ".data.rel.local.";
+ if (Kind.isDataRel()) return ".data.rel.";
+ if (Kind.isReadOnlyWithRelLocal()) return ".data.rel.ro.local.";
+
+ assert(Kind.isReadOnlyWithRel() && "Unknown section kind");
+ return ".data.rel.ro.";
+}
+
+
const MCSection *TargetLoweringObjectFileELF::
SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind,
Mangler *Mang, const TargetMachine &TM) const {
+ // If we have -ffunction-section or -fdata-section then we should emit the
+ // global value to a uniqued section specifically for it.
+ bool EmitUniquedSection;
+ if (Kind.isText())
+ EmitUniquedSection = TM.getFunctionSections();
+ else
+ EmitUniquedSection = TM.getDataSections();
// If this global is linkonce/weak and the target handles this by emitting it
// into a 'uniqued' section name, create and return the section now.
- if (GV->isWeakForLinker() && !Kind.isCommon() && !Kind.isBSS()) {
- const char *Prefix = getSectionPrefixForUniqueGlobal(Kind);
- SmallString<128> Name;
- Name.append(Prefix, Prefix+strlen(Prefix));
- Mang->getNameWithPrefix(Name, GV, false);
- return getELFSection(Name.str(), getELFSectionType(Name.str(), Kind),
- getELFSectionFlags(Kind), Kind);
+ if ((GV->isWeakForLinker() || EmitUniquedSection) &&
+ !Kind.isCommon() && !Kind.isBSS()) {
+ const char *Prefix;
+ if (GV->isWeakForLinker())
+ Prefix = getSectionPrefixForUniqueGlobal(Kind);
+ else {
+ assert(EmitUniquedSection);
+ Prefix = getSectionPrefixForGlobal(Kind);
+ }
+
+ SmallString<128> Name(Prefix, Prefix+strlen(Prefix));
+ MCSymbol *Sym = Mang->getSymbol(GV);
+ Name.append(Sym->getName().begin(), Sym->getName().end());
+ return getContext().getELFSection(Name.str(),
+ getELFSectionType(Name.str(), Kind),
+ getELFSectionFlags(Kind), Kind);
}
if (Kind.isText()) return TextSection;
std::string Name = SizeSpec + utostr(Align);
- return getELFSection(Name, MCSectionELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC |
- MCSectionELF::SHF_MERGE |
- MCSectionELF::SHF_STRINGS,
- Kind);
+ return getContext().getELFSection(Name, MCSectionELF::SHT_PROGBITS,
+ MCSectionELF::SHF_ALLOC |
+ MCSectionELF::SHF_MERGE |
+ MCSectionELF::SHF_STRINGS,
+ Kind);
}
if (Kind.isMergeableConst()) {
}
const MCExpr *TargetLoweringObjectFileELF::
-getSymbolForDwarfGlobalReference(const GlobalValue *GV, Mangler *Mang,
- MachineModuleInfo *MMI, unsigned Encoding) const {
+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>();
// Add information about the stub reference to ELFMMI so that the stub
// gets emitted by the asmprinter.
- MCSymbol *Sym = getContext().GetOrCreateSymbol(Name.str());
- MCSymbol *&StubSym = ELFMMI.getGVStubEntry(Sym);
- if (StubSym == 0) {
- Name.clear();
- Mang->getNameWithPrefix(Name, GV, false);
- StubSym = getContext().GetOrCreateSymbol(Name.str());
+ 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::
- getSymbolForDwarfReference(Sym, MMI,
- Encoding & ~dwarf::DW_EH_PE_indirect);
+ getExprForDwarfReference(SSym, Mang, MMI,
+ Encoding & ~dwarf::DW_EH_PE_indirect, Streamer);
}
return TargetLoweringObjectFile::
- getSymbolForDwarfGlobalReference(GV, Mang, MMI, Encoding);
+ getExprForDwarfGlobalReference(GV, Mang, MMI, Encoding, Streamer);
}
//===----------------------------------------------------------------------===//
// MachO
//===----------------------------------------------------------------------===//
-typedef StringMap<const MCSectionMachO*> MachOUniqueMapTy;
-
-TargetLoweringObjectFileMachO::~TargetLoweringObjectFileMachO() {
- // If we have the MachO uniquing map, free it.
- delete (MachOUniqueMapTy*)UniquingMap;
-}
-
-
-const MCSectionMachO *TargetLoweringObjectFileMachO::
-getMachOSection(StringRef Segment, StringRef Section,
- unsigned TypeAndAttributes,
- unsigned Reserved2, SectionKind Kind) const {
- // We unique sections by their segment/section pair. The returned section
- // may not have the same flags as the requested section, if so this should be
- // diagnosed by the client as an error.
-
- // Create the map if it doesn't already exist.
- if (UniquingMap == 0)
- UniquingMap = new MachOUniqueMapTy();
- MachOUniqueMapTy &Map = *(MachOUniqueMapTy*)UniquingMap;
-
- // Form the name to look up.
- SmallString<64> Name;
- Name += Segment;
- Name.push_back(',');
- Name += Section;
-
- // Do the lookup, if we have a hit, return it.
- const MCSectionMachO *&Entry = Map[Name.str()];
- if (Entry) return Entry;
-
- // Otherwise, return a new section.
- return Entry = MCSectionMachO::Create(Segment, Section, TypeAndAttributes,
- Reserved2, Kind, getContext());
-}
-
-
void TargetLoweringObjectFileMachO::Initialize(MCContext &Ctx,
const TargetMachine &TM) {
- if (UniquingMap != 0)
- ((MachOUniqueMapTy*)UniquingMap)->clear();
+ // _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;
+
+ Triple T(((LLVMTargetMachine&)TM).getTargetTriple());
+ if (T.getOS() == Triple::Darwin) {
+ switch (T.getDarwinMajorNumber()) {
+ case 7: // 10.3 Panther.
+ case 8: // 10.4 Tiger.
+ CommDirectiveSupportsAlignment = false;
+ break;
+ case 9: // 10.5 Leopard.
+ case 10: // 10.6 SnowLeopard.
+ break;
+ }
+ }
+
TargetLoweringObjectFile::Initialize(Ctx, TM);
TextSection // .text
- = getMachOSection("__TEXT", "__text",
- MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
- SectionKind::getText());
+ = getContext().getMachOSection("__TEXT", "__text",
+ MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
+ SectionKind::getText());
DataSection // .data
- = getMachOSection("__DATA", "__data", 0, SectionKind::getDataRel());
+ = getContext().getMachOSection("__DATA", "__data", 0,
+ SectionKind::getDataRel());
+
+ TLSDataSection // .tdata
+ = getContext().getMachOSection("__DATA", "__thread_data",
+ MCSectionMachO::S_THREAD_LOCAL_REGULAR,
+ SectionKind::getDataRel());
+ TLSBSSSection // .tbss
+ = getContext().getMachOSection("__DATA", "__thread_bss",
+ MCSectionMachO::S_THREAD_LOCAL_ZEROFILL,
+ SectionKind::getThreadBSS());
+
+ // TODO: Verify datarel below.
+ TLSTLVSection // .tlv
+ = getContext().getMachOSection("__DATA", "__thread_vars",
+ MCSectionMachO::S_THREAD_LOCAL_VARIABLES,
+ SectionKind::getDataRel());
+
+ TLSThreadInitSection
+ = getContext().getMachOSection("__DATA", "__thread_init",
+ MCSectionMachO::S_THREAD_LOCAL_INIT_FUNCTION_POINTERS,
+ SectionKind::getDataRel());
CStringSection // .cstring
- = getMachOSection("__TEXT", "__cstring", MCSectionMachO::S_CSTRING_LITERALS,
- SectionKind::getMergeable1ByteCString());
+ = getContext().getMachOSection("__TEXT", "__cstring",
+ MCSectionMachO::S_CSTRING_LITERALS,
+ SectionKind::getMergeable1ByteCString());
UStringSection
- = getMachOSection("__TEXT","__ustring", 0,
- SectionKind::getMergeable2ByteCString());
+ = getContext().getMachOSection("__TEXT","__ustring", 0,
+ SectionKind::getMergeable2ByteCString());
FourByteConstantSection // .literal4
- = getMachOSection("__TEXT", "__literal4", MCSectionMachO::S_4BYTE_LITERALS,
- SectionKind::getMergeableConst4());
+ = getContext().getMachOSection("__TEXT", "__literal4",
+ MCSectionMachO::S_4BYTE_LITERALS,
+ SectionKind::getMergeableConst4());
EightByteConstantSection // .literal8
- = getMachOSection("__TEXT", "__literal8", MCSectionMachO::S_8BYTE_LITERALS,
- SectionKind::getMergeableConst8());
+ = getContext().getMachOSection("__TEXT", "__literal8",
+ MCSectionMachO::S_8BYTE_LITERALS,
+ SectionKind::getMergeableConst8());
// ld_classic doesn't support .literal16 in 32-bit mode, and ld64 falls back
// to using it in -static mode.
if (TM.getRelocationModel() != Reloc::Static &&
TM.getTargetData()->getPointerSize() == 32)
SixteenByteConstantSection = // .literal16
- getMachOSection("__TEXT", "__literal16",MCSectionMachO::S_16BYTE_LITERALS,
- SectionKind::getMergeableConst16());
+ getContext().getMachOSection("__TEXT", "__literal16",
+ MCSectionMachO::S_16BYTE_LITERALS,
+ SectionKind::getMergeableConst16());
ReadOnlySection // .const
- = getMachOSection("__TEXT", "__const", 0, SectionKind::getReadOnly());
+ = getContext().getMachOSection("__TEXT", "__const", 0,
+ SectionKind::getReadOnly());
TextCoalSection
- = getMachOSection("__TEXT", "__textcoal_nt",
- MCSectionMachO::S_COALESCED |
- MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
- SectionKind::getText());
+ = getContext().getMachOSection("__TEXT", "__textcoal_nt",
+ MCSectionMachO::S_COALESCED |
+ MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
+ SectionKind::getText());
ConstTextCoalSection
- = getMachOSection("__TEXT", "__const_coal", MCSectionMachO::S_COALESCED,
- SectionKind::getText());
- ConstDataCoalSection
- = getMachOSection("__DATA","__const_coal", MCSectionMachO::S_COALESCED,
- SectionKind::getText());
+ = getContext().getMachOSection("__TEXT", "__const_coal",
+ MCSectionMachO::S_COALESCED,
+ SectionKind::getReadOnly());
ConstDataSection // .const_data
- = getMachOSection("__DATA", "__const", 0,
- SectionKind::getReadOnlyWithRel());
+ = getContext().getMachOSection("__DATA", "__const", 0,
+ SectionKind::getReadOnlyWithRel());
DataCoalSection
- = getMachOSection("__DATA","__datacoal_nt", MCSectionMachO::S_COALESCED,
- SectionKind::getDataRel());
+ = getContext().getMachOSection("__DATA","__datacoal_nt",
+ MCSectionMachO::S_COALESCED,
+ SectionKind::getDataRel());
DataCommonSection
- = getMachOSection("__DATA","__common", MCSectionMachO::S_ZEROFILL,
- SectionKind::getBSS());
+ = getContext().getMachOSection("__DATA","__common",
+ MCSectionMachO::S_ZEROFILL,
+ SectionKind::getBSS());
DataBSSSection
- = getMachOSection("__DATA","__bss", MCSectionMachO::S_ZEROFILL,
- SectionKind::getBSS());
-
+ = getContext().getMachOSection("__DATA","__bss", MCSectionMachO::S_ZEROFILL,
+ SectionKind::getBSS());
+
LazySymbolPointerSection
- = getMachOSection("__DATA", "__la_symbol_ptr",
- MCSectionMachO::S_LAZY_SYMBOL_POINTERS,
- SectionKind::getMetadata());
+ = getContext().getMachOSection("__DATA", "__la_symbol_ptr",
+ MCSectionMachO::S_LAZY_SYMBOL_POINTERS,
+ SectionKind::getMetadata());
NonLazySymbolPointerSection
- = getMachOSection("__DATA", "__nl_symbol_ptr",
- MCSectionMachO::S_NON_LAZY_SYMBOL_POINTERS,
- SectionKind::getMetadata());
+ = getContext().getMachOSection("__DATA", "__nl_symbol_ptr",
+ MCSectionMachO::S_NON_LAZY_SYMBOL_POINTERS,
+ SectionKind::getMetadata());
if (TM.getRelocationModel() == Reloc::Static) {
StaticCtorSection
- = getMachOSection("__TEXT", "__constructor", 0,SectionKind::getDataRel());
+ = getContext().getMachOSection("__TEXT", "__constructor", 0,
+ SectionKind::getDataRel());
StaticDtorSection
- = getMachOSection("__TEXT", "__destructor", 0, SectionKind::getDataRel());
+ = getContext().getMachOSection("__TEXT", "__destructor", 0,
+ SectionKind::getDataRel());
} else {
StaticCtorSection
- = getMachOSection("__DATA", "__mod_init_func",
- MCSectionMachO::S_MOD_INIT_FUNC_POINTERS,
- SectionKind::getDataRel());
+ = getContext().getMachOSection("__DATA", "__mod_init_func",
+ MCSectionMachO::S_MOD_INIT_FUNC_POINTERS,
+ SectionKind::getDataRel());
StaticDtorSection
- = getMachOSection("__DATA", "__mod_term_func",
- MCSectionMachO::S_MOD_TERM_FUNC_POINTERS,
- SectionKind::getDataRel());
+ = getContext().getMachOSection("__DATA", "__mod_term_func",
+ MCSectionMachO::S_MOD_TERM_FUNC_POINTERS,
+ SectionKind::getDataRel());
}
// Exception Handling.
- LSDASection = getMachOSection("__DATA", "__gcc_except_tab", 0,
- SectionKind::getDataRel());
+ LSDASection = getContext().getMachOSection("__TEXT", "__gcc_except_tab", 0,
+ SectionKind::getReadOnlyWithRel());
EHFrameSection =
- getMachOSection("__TEXT", "__eh_frame",
- MCSectionMachO::S_COALESCED |
- MCSectionMachO::S_ATTR_NO_TOC |
- MCSectionMachO::S_ATTR_STRIP_STATIC_SYMS |
- MCSectionMachO::S_ATTR_LIVE_SUPPORT,
- SectionKind::getReadOnly());
+ getContext().getMachOSection("__TEXT", "__eh_frame",
+ MCSectionMachO::S_COALESCED |
+ MCSectionMachO::S_ATTR_NO_TOC |
+ MCSectionMachO::S_ATTR_STRIP_STATIC_SYMS |
+ MCSectionMachO::S_ATTR_LIVE_SUPPORT,
+ SectionKind::getReadOnly());
// Debug Information.
DwarfAbbrevSection =
- getMachOSection("__DWARF", "__debug_abbrev", MCSectionMachO::S_ATTR_DEBUG,
- SectionKind::getMetadata());
+ getContext().getMachOSection("__DWARF", "__debug_abbrev",
+ MCSectionMachO::S_ATTR_DEBUG,
+ SectionKind::getMetadata());
DwarfInfoSection =
- getMachOSection("__DWARF", "__debug_info", MCSectionMachO::S_ATTR_DEBUG,
- SectionKind::getMetadata());
+ getContext().getMachOSection("__DWARF", "__debug_info",
+ MCSectionMachO::S_ATTR_DEBUG,
+ SectionKind::getMetadata());
DwarfLineSection =
- getMachOSection("__DWARF", "__debug_line", MCSectionMachO::S_ATTR_DEBUG,
- SectionKind::getMetadata());
+ getContext().getMachOSection("__DWARF", "__debug_line",
+ MCSectionMachO::S_ATTR_DEBUG,
+ SectionKind::getMetadata());
DwarfFrameSection =
- getMachOSection("__DWARF", "__debug_frame", MCSectionMachO::S_ATTR_DEBUG,
- SectionKind::getMetadata());
+ getContext().getMachOSection("__DWARF", "__debug_frame",
+ MCSectionMachO::S_ATTR_DEBUG,
+ SectionKind::getMetadata());
DwarfPubNamesSection =
- getMachOSection("__DWARF", "__debug_pubnames", MCSectionMachO::S_ATTR_DEBUG,
- SectionKind::getMetadata());
+ getContext().getMachOSection("__DWARF", "__debug_pubnames",
+ MCSectionMachO::S_ATTR_DEBUG,
+ SectionKind::getMetadata());
DwarfPubTypesSection =
- getMachOSection("__DWARF", "__debug_pubtypes", MCSectionMachO::S_ATTR_DEBUG,
- SectionKind::getMetadata());
+ getContext().getMachOSection("__DWARF", "__debug_pubtypes",
+ MCSectionMachO::S_ATTR_DEBUG,
+ SectionKind::getMetadata());
DwarfStrSection =
- getMachOSection("__DWARF", "__debug_str", MCSectionMachO::S_ATTR_DEBUG,
- SectionKind::getMetadata());
+ getContext().getMachOSection("__DWARF", "__debug_str",
+ MCSectionMachO::S_ATTR_DEBUG,
+ SectionKind::getMetadata());
DwarfLocSection =
- getMachOSection("__DWARF", "__debug_loc", MCSectionMachO::S_ATTR_DEBUG,
- SectionKind::getMetadata());
+ getContext().getMachOSection("__DWARF", "__debug_loc",
+ MCSectionMachO::S_ATTR_DEBUG,
+ SectionKind::getMetadata());
DwarfARangesSection =
- getMachOSection("__DWARF", "__debug_aranges", MCSectionMachO::S_ATTR_DEBUG,
- SectionKind::getMetadata());
+ getContext().getMachOSection("__DWARF", "__debug_aranges",
+ MCSectionMachO::S_ATTR_DEBUG,
+ SectionKind::getMetadata());
DwarfRangesSection =
- getMachOSection("__DWARF", "__debug_ranges", MCSectionMachO::S_ATTR_DEBUG,
- SectionKind::getMetadata());
+ getContext().getMachOSection("__DWARF", "__debug_ranges",
+ MCSectionMachO::S_ATTR_DEBUG,
+ SectionKind::getMetadata());
DwarfMacroInfoSection =
- getMachOSection("__DWARF", "__debug_macinfo", MCSectionMachO::S_ATTR_DEBUG,
- SectionKind::getMetadata());
+ getContext().getMachOSection("__DWARF", "__debug_macinfo",
+ MCSectionMachO::S_ATTR_DEBUG,
+ SectionKind::getMetadata());
DwarfDebugInlineSection =
- getMachOSection("__DWARF", "__debug_inlined", MCSectionMachO::S_ATTR_DEBUG,
- SectionKind::getMetadata());
+ getContext().getMachOSection("__DWARF", "__debug_inlined",
+ MCSectionMachO::S_ATTR_DEBUG,
+ SectionKind::getMetadata());
+
+ TLSExtraDataSection = TLSTLVSection;
}
const MCSection *TargetLoweringObjectFileMachO::
MCSectionMachO::ParseSectionSpecifier(GV->getSection(), Segment, Section,
TAA, StubSize);
if (!ErrorCode.empty()) {
- // If invalid, report the error with llvm_report_error.
- llvm_report_error("Global variable '" + GV->getNameStr() +
+ // If invalid, report the error with report_fatal_error.
+ report_fatal_error("Global variable '" + GV->getNameStr() +
"' has an invalid section specifier '" + GV->getSection()+
"': " + ErrorCode + ".");
// Fall back to dropping it into the data section.
// Get the section.
const MCSectionMachO *S =
- getMachOSection(Segment, Section, TAA, StubSize, Kind);
+ getContext().getMachOSection(Segment, Section, TAA, StubSize, Kind);
// Okay, now that we got the section, verify that the TAA & StubSize agree.
// If the user declared multiple globals with different section flags, we need
// to reject it here.
if (S->getTypeAndAttributes() != TAA || S->getStubSize() != StubSize) {
- // If invalid, report the error with llvm_report_error.
- llvm_report_error("Global variable '" + GV->getNameStr() +
+ // If invalid, report the error with report_fatal_error.
+ report_fatal_error("Global variable '" + GV->getNameStr() +
"' section type or attributes does not match previous"
" section specifier");
}
const MCSection *TargetLoweringObjectFileMachO::
SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind,
Mangler *Mang, const TargetMachine &TM) const {
- assert(!Kind.isThreadLocal() && "Darwin doesn't support TLS");
+
+ // Handle thread local data.
+ if (Kind.isThreadBSS()) return TLSBSSSection;
+ if (Kind.isThreadData()) return TLSDataSection;
if (Kind.isText())
return GV->isWeakForLinker() ? TextCoalSection : TextSection;
if (Kind.isMergeable1ByteCString() &&
TM.getTargetData()->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.
// with the .zerofill directive (aka .lcomm).
if (Kind.isBSSLocal())
return DataBSSSection;
-
+
// Otherwise, just drop the variable in the normal data section.
return DataSection;
}
// FIXME: ObjC metadata is currently emitted as internal symbols that have
// \1L and \0l prefixes on them. Fix them to be Private/LinkerPrivate and
// this horrible hack can go away.
- SmallString<64> Name;
- Mang->getNameWithPrefix(Name, GV, false);
- if (Name[0] == 'L' || Name[0] == 'l')
+ MCSymbol *Sym = Mang->getSymbol(GV);
+ if (Sym->getName()[0] == 'L' || Sym->getName()[0] == 'l')
return false;
}
}
const MCExpr *TargetLoweringObjectFileMachO::
-getSymbolForDwarfGlobalReference(const GlobalValue *GV, Mangler *Mang,
- MachineModuleInfo *MMI, unsigned Encoding) const {
+getExprForDwarfGlobalReference(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) {
// Add information about the stub reference to MachOMMI so that the stub
// gets emitted by the asmprinter.
- MCSymbol *Sym = getContext().GetOrCreateSymbol(Name.str());
- MCSymbol *&StubSym = MachOMMI.getGVStubEntry(Sym);
- if (StubSym == 0) {
- Name.clear();
- Mang->getNameWithPrefix(Name, GV, false);
- StubSym = getContext().GetOrCreateSymbol(Name.str());
+ MCSymbol *SSym = getContext().GetOrCreateSymbol(Name.str());
+ MachineModuleInfoImpl::StubValueTy &StubSym = MachOMMI.getGVStubEntry(SSym);
+ if (StubSym.getPointer() == 0) {
+ MCSymbol *Sym = Mang->getSymbol(GV);
+ StubSym = MachineModuleInfoImpl::StubValueTy(Sym, !GV->hasLocalLinkage());
}
return TargetLoweringObjectFile::
- getSymbolForDwarfReference(Sym, MMI,
- Encoding & ~dwarf::DW_EH_PE_indirect);
+ getExprForDwarfReference(SSym, Mang, MMI,
+ Encoding & ~dwarf::DW_EH_PE_indirect, Streamer);
}
return TargetLoweringObjectFile::
- getSymbolForDwarfGlobalReference(GV, Mang, MMI, Encoding);
+ getExprForDwarfGlobalReference(GV, Mang, MMI, Encoding, Streamer);
}
unsigned TargetLoweringObjectFileMachO::getPersonalityEncoding() const {
}
unsigned TargetLoweringObjectFileMachO::getTTypeEncoding() const {
- return DW_EH_PE_absptr;
+ return DW_EH_PE_indirect | DW_EH_PE_pcrel | DW_EH_PE_sdata4;
}
//===----------------------------------------------------------------------===//
// COFF
//===----------------------------------------------------------------------===//
-typedef StringMap<const MCSectionCOFF*> COFFUniqueMapTy;
-
-TargetLoweringObjectFileCOFF::~TargetLoweringObjectFileCOFF() {
- delete (COFFUniqueMapTy*)UniquingMap;
-}
-
-
-const MCSection *TargetLoweringObjectFileCOFF::
-getCOFFSection(StringRef Name, bool isDirective, SectionKind Kind) const {
- // Create the map if it doesn't already exist.
- if (UniquingMap == 0)
- UniquingMap = new MachOUniqueMapTy();
- COFFUniqueMapTy &Map = *(COFFUniqueMapTy*)UniquingMap;
-
- // Do the lookup, if we have a hit, return it.
- const MCSectionCOFF *&Entry = Map[Name];
- if (Entry) return Entry;
-
- return Entry = MCSectionCOFF::Create(Name, isDirective, Kind, getContext());
-}
-
void TargetLoweringObjectFileCOFF::Initialize(MCContext &Ctx,
const TargetMachine &TM) {
- if (UniquingMap != 0)
- ((COFFUniqueMapTy*)UniquingMap)->clear();
TargetLoweringObjectFile::Initialize(Ctx, TM);
- TextSection = getCOFFSection("\t.text", true, SectionKind::getText());
- DataSection = getCOFFSection("\t.data", true, SectionKind::getDataRel());
+ TextSection =
+ getContext().getCOFFSection(".text",
+ COFF::IMAGE_SCN_CNT_CODE |
+ COFF::IMAGE_SCN_MEM_EXECUTE |
+ COFF::IMAGE_SCN_MEM_READ,
+ SectionKind::getText());
+ DataSection =
+ getContext().getCOFFSection(".data",
+ COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
+ COFF::IMAGE_SCN_MEM_READ |
+ COFF::IMAGE_SCN_MEM_WRITE,
+ SectionKind::getDataRel());
+ ReadOnlySection =
+ getContext().getCOFFSection(".rdata",
+ COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
+ COFF::IMAGE_SCN_MEM_READ,
+ SectionKind::getReadOnly());
StaticCtorSection =
- getCOFFSection(".ctors", false, SectionKind::getDataRel());
+ getContext().getCOFFSection(".ctors",
+ COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
+ COFF::IMAGE_SCN_MEM_READ |
+ COFF::IMAGE_SCN_MEM_WRITE,
+ SectionKind::getDataRel());
StaticDtorSection =
- getCOFFSection(".dtors", false, SectionKind::getDataRel());
+ getContext().getCOFFSection(".dtors",
+ COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
+ COFF::IMAGE_SCN_MEM_READ |
+ COFF::IMAGE_SCN_MEM_WRITE,
+ SectionKind::getDataRel());
// FIXME: We're emitting LSDA info into a readonly section on COFF, even
// though it contains relocatable pointers. In PIC mode, this is probably a
// big runtime hit for C++ apps. Either the contents of the LSDA need to be
// adjusted or this should be a data section.
LSDASection =
- getCOFFSection(".gcc_except_table", false, SectionKind::getReadOnly());
+ getContext().getCOFFSection(".gcc_except_table",
+ COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
+ COFF::IMAGE_SCN_MEM_READ,
+ SectionKind::getReadOnly());
EHFrameSection =
- getCOFFSection(".eh_frame", false, SectionKind::getDataRel());
+ getContext().getCOFFSection(".eh_frame",
+ COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
+ COFF::IMAGE_SCN_MEM_READ |
+ COFF::IMAGE_SCN_MEM_WRITE,
+ SectionKind::getDataRel());
// Debug info.
- // FIXME: Don't use 'directive' mode here.
DwarfAbbrevSection =
- getCOFFSection("\t.section\t.debug_abbrev,\"dr\"",
- true, SectionKind::getMetadata());
+ getContext().getCOFFSection(".debug_abbrev",
+ COFF::IMAGE_SCN_MEM_DISCARDABLE |
+ COFF::IMAGE_SCN_MEM_READ,
+ SectionKind::getMetadata());
DwarfInfoSection =
- getCOFFSection("\t.section\t.debug_info,\"dr\"",
- true, SectionKind::getMetadata());
+ getContext().getCOFFSection(".debug_info",
+ COFF::IMAGE_SCN_MEM_DISCARDABLE |
+ COFF::IMAGE_SCN_MEM_READ,
+ SectionKind::getMetadata());
DwarfLineSection =
- getCOFFSection("\t.section\t.debug_line,\"dr\"",
- true, SectionKind::getMetadata());
+ getContext().getCOFFSection(".debug_line",
+ COFF::IMAGE_SCN_MEM_DISCARDABLE |
+ COFF::IMAGE_SCN_MEM_READ,
+ SectionKind::getMetadata());
DwarfFrameSection =
- getCOFFSection("\t.section\t.debug_frame,\"dr\"",
- true, SectionKind::getMetadata());
+ getContext().getCOFFSection(".debug_frame",
+ COFF::IMAGE_SCN_MEM_DISCARDABLE |
+ COFF::IMAGE_SCN_MEM_READ,
+ SectionKind::getMetadata());
DwarfPubNamesSection =
- getCOFFSection("\t.section\t.debug_pubnames,\"dr\"",
- true, SectionKind::getMetadata());
+ getContext().getCOFFSection(".debug_pubnames",
+ COFF::IMAGE_SCN_MEM_DISCARDABLE |
+ COFF::IMAGE_SCN_MEM_READ,
+ SectionKind::getMetadata());
DwarfPubTypesSection =
- getCOFFSection("\t.section\t.debug_pubtypes,\"dr\"",
- true, SectionKind::getMetadata());
+ getContext().getCOFFSection(".debug_pubtypes",
+ COFF::IMAGE_SCN_MEM_DISCARDABLE |
+ COFF::IMAGE_SCN_MEM_READ,
+ SectionKind::getMetadata());
DwarfStrSection =
- getCOFFSection("\t.section\t.debug_str,\"dr\"",
- true, SectionKind::getMetadata());
+ getContext().getCOFFSection(".debug_str",
+ COFF::IMAGE_SCN_MEM_DISCARDABLE |
+ COFF::IMAGE_SCN_MEM_READ,
+ SectionKind::getMetadata());
DwarfLocSection =
- getCOFFSection("\t.section\t.debug_loc,\"dr\"",
- true, SectionKind::getMetadata());
+ getContext().getCOFFSection(".debug_loc",
+ COFF::IMAGE_SCN_MEM_DISCARDABLE |
+ COFF::IMAGE_SCN_MEM_READ,
+ SectionKind::getMetadata());
DwarfARangesSection =
- getCOFFSection("\t.section\t.debug_aranges,\"dr\"",
- true, SectionKind::getMetadata());
+ getContext().getCOFFSection(".debug_aranges",
+ COFF::IMAGE_SCN_MEM_DISCARDABLE |
+ COFF::IMAGE_SCN_MEM_READ,
+ SectionKind::getMetadata());
DwarfRangesSection =
- getCOFFSection("\t.section\t.debug_ranges,\"dr\"",
- true, SectionKind::getMetadata());
+ getContext().getCOFFSection(".debug_ranges",
+ COFF::IMAGE_SCN_MEM_DISCARDABLE |
+ COFF::IMAGE_SCN_MEM_READ,
+ SectionKind::getMetadata());
DwarfMacroInfoSection =
- getCOFFSection("\t.section\t.debug_macinfo,\"dr\"",
- true, SectionKind::getMetadata());
+ getContext().getCOFFSection(".debug_macinfo",
+ COFF::IMAGE_SCN_MEM_DISCARDABLE |
+ COFF::IMAGE_SCN_MEM_READ,
+ SectionKind::getMetadata());
+
+ DrectveSection =
+ getContext().getCOFFSection(".drectve",
+ COFF::IMAGE_SCN_LNK_INFO,
+ SectionKind::getMetadata());
+}
+
+static unsigned
+getCOFFSectionFlags(SectionKind K) {
+ unsigned Flags = 0;
+
+ if (K.isMetadata())
+ Flags |=
+ COFF::IMAGE_SCN_MEM_DISCARDABLE;
+ else if (K.isText())
+ Flags |=
+ COFF::IMAGE_SCN_MEM_EXECUTE |
+ COFF::IMAGE_SCN_MEM_READ |
+ COFF::IMAGE_SCN_CNT_CODE;
+ else if (K.isBSS ())
+ Flags |=
+ COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA |
+ COFF::IMAGE_SCN_MEM_READ |
+ COFF::IMAGE_SCN_MEM_WRITE;
+ else if (K.isReadOnly())
+ Flags |=
+ COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
+ COFF::IMAGE_SCN_MEM_READ;
+ else if (K.isWriteable())
+ Flags |=
+ COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
+ COFF::IMAGE_SCN_MEM_READ |
+ COFF::IMAGE_SCN_MEM_WRITE;
+
+ return Flags;
}
const MCSection *TargetLoweringObjectFileCOFF::
getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind,
Mangler *Mang, const TargetMachine &TM) const {
- return getCOFFSection(GV->getSection(), false, Kind);
+ return getContext().getCOFFSection(GV->getSection(),
+ getCOFFSectionFlags(Kind),
+ Kind);
}
static const char *getCOFFSectionPrefixForUniqueGlobal(SectionKind Kind) {
if (Kind.isText())
- return ".text$linkonce";
+ return ".text$";
+ if (Kind.isBSS ())
+ return ".bss$";
if (Kind.isWriteable())
- return ".data$linkonce";
- return ".rdata$linkonce";
+ return ".data$";
+ return ".rdata$";
}
if (GV->isWeakForLinker()) {
const char *Prefix = getCOFFSectionPrefixForUniqueGlobal(Kind);
SmallString<128> Name(Prefix, Prefix+strlen(Prefix));
- Mang->getNameWithPrefix(Name, GV, false);
- return getCOFFSection(Name.str(), false, Kind);
+ MCSymbol *Sym = Mang->getSymbol(GV);
+ Name.append(Sym->getName().begin() + 1, Sym->getName().end());
+
+ unsigned Characteristics = getCOFFSectionFlags(Kind);
+
+ Characteristics |= COFF::IMAGE_SCN_LNK_COMDAT;
+
+ return getContext().getCOFFSection(Name.str(), Characteristics,
+ COFF::IMAGE_COMDAT_SELECT_ANY, Kind);
}
if (Kind.isText())