BSSSection =
getContext().getELFSection(".bss", ELF::SHT_NOBITS,
- MCSectionELF::SHF_WRITE |MCSectionELF::SHF_ALLOC,
+ ELF::SHF_WRITE |ELF::SHF_ALLOC,
SectionKind::getBSS());
TextSection =
getContext().getELFSection(".text", ELF::SHT_PROGBITS,
- MCSectionELF::SHF_EXECINSTR |
- MCSectionELF::SHF_ALLOC,
+ ELF::SHF_EXECINSTR |
+ ELF::SHF_ALLOC,
SectionKind::getText());
DataSection =
getContext().getELFSection(".data", ELF::SHT_PROGBITS,
- MCSectionELF::SHF_WRITE |MCSectionELF::SHF_ALLOC,
+ ELF::SHF_WRITE |ELF::SHF_ALLOC,
SectionKind::getDataRel());
ReadOnlySection =
getContext().getELFSection(".rodata", ELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC,
+ ELF::SHF_ALLOC,
SectionKind::getReadOnly());
TLSDataSection =
getContext().getELFSection(".tdata", ELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_TLS |
- MCSectionELF::SHF_WRITE,
+ ELF::SHF_ALLOC | ELF::SHF_TLS |
+ ELF::SHF_WRITE,
SectionKind::getThreadData());
TLSBSSSection =
getContext().getELFSection(".tbss", ELF::SHT_NOBITS,
- MCSectionELF::SHF_ALLOC | MCSectionELF::SHF_TLS |
- MCSectionELF::SHF_WRITE,
+ ELF::SHF_ALLOC | ELF::SHF_TLS |
+ ELF::SHF_WRITE,
SectionKind::getThreadBSS());
DataRelSection =
getContext().getELFSection(".data.rel", ELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC |MCSectionELF::SHF_WRITE,
+ ELF::SHF_ALLOC |ELF::SHF_WRITE,
SectionKind::getDataRel());
DataRelLocalSection =
getContext().getELFSection(".data.rel.local", ELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC |MCSectionELF::SHF_WRITE,
+ ELF::SHF_ALLOC |ELF::SHF_WRITE,
SectionKind::getDataRelLocal());
DataRelROSection =
getContext().getELFSection(".data.rel.ro", ELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC |MCSectionELF::SHF_WRITE,
+ ELF::SHF_ALLOC |ELF::SHF_WRITE,
SectionKind::getReadOnlyWithRel());
DataRelROLocalSection =
getContext().getELFSection(".data.rel.ro.local", ELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC |MCSectionELF::SHF_WRITE,
+ ELF::SHF_ALLOC |ELF::SHF_WRITE,
SectionKind::getReadOnlyWithRelLocal());
MergeableConst4Section =
getContext().getELFSection(".rodata.cst4", ELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC |MCSectionELF::SHF_MERGE,
+ ELF::SHF_ALLOC |ELF::SHF_MERGE,
SectionKind::getMergeableConst4());
MergeableConst8Section =
getContext().getELFSection(".rodata.cst8", ELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC |MCSectionELF::SHF_MERGE,
+ ELF::SHF_ALLOC |ELF::SHF_MERGE,
SectionKind::getMergeableConst8());
MergeableConst16Section =
getContext().getELFSection(".rodata.cst16", ELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC |MCSectionELF::SHF_MERGE,
+ ELF::SHF_ALLOC |ELF::SHF_MERGE,
SectionKind::getMergeableConst16());
StaticCtorSection =
getContext().getELFSection(".ctors", ELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC |MCSectionELF::SHF_WRITE,
+ ELF::SHF_ALLOC |ELF::SHF_WRITE,
SectionKind::getDataRel());
StaticDtorSection =
getContext().getELFSection(".dtors", ELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC |MCSectionELF::SHF_WRITE,
+ ELF::SHF_ALLOC |ELF::SHF_WRITE,
SectionKind::getDataRel());
// Exception Handling Sections.
// adjusted or this should be a data section.
LSDASection =
getContext().getELFSection(".gcc_except_table", ELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC,
+ ELF::SHF_ALLOC,
SectionKind::getReadOnly());
- EHFrameSection =
- getContext().getELFSection(".eh_frame", ELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC,
- SectionKind::getDataRel());
-
// Debug Info Sections.
DwarfAbbrevSection =
getContext().getELFSection(".debug_abbrev", ELF::SHT_PROGBITS, 0,
SectionKind::getMetadata());
}
+const MCSection *TargetLoweringObjectFileELF::getEHFrameSection() const {
+ return getContext().getELFSection(".eh_frame", ELF::SHT_PROGBITS,
+ ELF::SHF_ALLOC,
+ SectionKind::getDataRel());
+}
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.
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;
}
unsigned Flags = 0;
if (!K.isMetadata())
- Flags |= MCSectionELF::SHF_ALLOC;
+ Flags |= ELF::SHF_ALLOC;
if (K.isText())
- Flags |= MCSectionELF::SHF_EXECINSTR;
+ Flags |= ELF::SHF_EXECINSTR;
if (K.isWriteable())
- Flags |= MCSectionELF::SHF_WRITE;
+ Flags |= ELF::SHF_WRITE;
if (K.isThreadLocal())
- Flags |= MCSectionELF::SHF_TLS;
+ Flags |= ELF::SHF_TLS;
// K.isMergeableConst() is left out to honour PR4650
if (K.isMergeableCString() || K.isMergeableConst4() ||
K.isMergeableConst8() || K.isMergeableConst16())
- Flags |= MCSectionELF::SHF_MERGE;
+ Flags |= ELF::SHF_MERGE;
if (K.isMergeableCString())
- Flags |= MCSectionELF::SHF_STRINGS;
+ Flags |= ELF::SHF_STRINGS;
return Flags;
}
getELFSectionFlags(Kind), Kind);
}
-static const char *getSectionPrefixForUniqueGlobal(SectionKind Kind) {
- if (Kind.isText()) return ".gnu.linkonce.t.";
- if (Kind.isReadOnly()) return ".gnu.linkonce.r.";
-
- if (Kind.isThreadData()) return ".gnu.linkonce.td.";
- if (Kind.isThreadBSS()) return ".gnu.linkonce.tb.";
-
- if (Kind.isDataNoRel()) return ".gnu.linkonce.d.";
- if (Kind.isDataRelLocal()) return ".gnu.linkonce.d.rel.local.";
- if (Kind.isDataRel()) return ".gnu.linkonce.d.rel.";
- if (Kind.isReadOnlyWithRelLocal()) return ".gnu.linkonce.d.rel.ro.local.";
-
- assert(Kind.isReadOnlyWithRel() && "Unknown section 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 ((GV->isWeakForLinker() || EmitUniquedSection) &&
!Kind.isCommon() && !Kind.isBSS()) {
const char *Prefix;
- if (GV->isWeakForLinker())
- Prefix = getSectionPrefixForUniqueGlobal(Kind);
- else {
- assert(EmitUniquedSection);
- Prefix = getSectionPrefixForGlobal(Kind);
- }
+ Prefix = getSectionPrefixForGlobal(Kind);
SmallString<128> Name(Prefix, Prefix+strlen(Prefix));
MCSymbol *Sym = Mang->getSymbol(GV);
Name.append(Sym->getName().begin(), Sym->getName().end());
+ StringRef Group = "";
+ unsigned Flags = getELFSectionFlags(Kind);
+ if (GV->isWeakForLinker()) {
+ Group = Sym->getName();
+ Flags |= ELF::SHF_GROUP;
+ }
+
return getContext().getELFSection(Name.str(),
getELFSectionType(Name.str(), Kind),
- getELFSectionFlags(Kind), Kind);
+ Flags, Kind, 0, Group);
}
if (Kind.isText()) return TextSection;
std::string Name = SizeSpec + utostr(Align);
return getContext().getELFSection(Name, ELF::SHT_PROGBITS,
- MCSectionELF::SHF_ALLOC |
- MCSectionELF::SHF_MERGE |
- MCSectionELF::SHF_STRINGS,
+ ELF::SHF_ALLOC |
+ ELF::SHF_MERGE |
+ ELF::SHF_STRINGS,
Kind);
}
// Exception Handling.
LSDASection = getContext().getMachOSection("__TEXT", "__gcc_except_tab", 0,
SectionKind::getReadOnlyWithRel());
- EHFrameSection =
- 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 =
getContext().getMachOSection("__DWARF", "__debug_abbrev",
TLSExtraDataSection = TLSTLVSection;
}
+const MCSection *TargetLoweringObjectFileMachO::getEHFrameSection() const {
+ return 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());
+}
+
const MCSection *TargetLoweringObjectFileMachO::
getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind,
Mangler *Mang, const TargetMachine &TM) const {
// Parse the section specifier and create it if valid.
StringRef Segment, Section;
- unsigned TAA, StubSize;
+ unsigned TAA = 0, StubSize = 0;
+ bool TAAParsed;
std::string ErrorCode =
MCSectionMachO::ParseSectionSpecifier(GV->getSection(), Segment, Section,
- TAA, StubSize);
+ TAA, TAAParsed, StubSize);
if (!ErrorCode.empty()) {
// If invalid, report the error with report_fatal_error.
report_fatal_error("Global variable '" + GV->getNameStr() +
const MCSectionMachO *S =
getContext().getMachOSection(Segment, Section, TAA, StubSize, Kind);
+ // If TAA wasn't set by ParseSectionSpecifier() above,
+ // use the value returned by getMachOSection() as a default.
+ if (!TAAParsed)
+ TAA = S->getTypeAndAttributes();
+
// 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.
COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
COFF::IMAGE_SCN_MEM_READ,
SectionKind::getReadOnly());
- EHFrameSection =
- getContext().getCOFFSection(".eh_frame",
- COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
- COFF::IMAGE_SCN_MEM_READ |
- COFF::IMAGE_SCN_MEM_WRITE,
- SectionKind::getDataRel());
-
// Debug info.
DwarfAbbrevSection =
getContext().getCOFFSection(".debug_abbrev",
SectionKind::getMetadata());
}
+const MCSection *TargetLoweringObjectFileCOFF::getEHFrameSection() const {
+ return getContext().getCOFFSection(".eh_frame",
+ COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
+ COFF::IMAGE_SCN_MEM_READ |
+ COFF::IMAGE_SCN_MEM_WRITE,
+ SectionKind::getDataRel());
+}
+
+
static unsigned
getCOFFSectionFlags(SectionKind K) {
unsigned Flags = 0;