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Fix pr20793.

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With this patch the third field of llvm.global_ctors is also used on ELF.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217202 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2014-09-04 23:03:58 +00:00
parent edee9e81ce
commit 295a0088db
2 changed files with 53 additions and 27 deletions
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72
lib/CodeGen/TargetLoweringObjectFileImpl.cpp
View File

@@ -360,42 +360,66 @@ TargetLoweringObjectFileELF::getSectionForConstant(SectionKind Kind,
const MCSection *TargetLoweringObjectFileELF::getStaticCtorSection(
unsigned Priority, const MCSymbol *KeySym) const {
// The default scheme is .ctor / .dtor, so we have to invert the priority
// numbering.
if (Priority == 65535)
return StaticCtorSection;
std::string Name;
unsigned Type;
unsigned Flags = ELF::SHF_ALLOC | ELF::SHF_WRITE;
SectionKind Kind = SectionKind::getDataRel();
StringRef COMDAT = KeySym ? KeySym->getName() : "";
if (KeySym)
Flags |= ELF::SHF_GROUP;
if (UseInitArray) {
std::string Name = std::string(".init_array.") + utostr(Priority);
return getContext().getELFSection(Name, ELF::SHT_INIT_ARRAY,
ELF::SHF_ALLOC | ELF::SHF_WRITE,
SectionKind::getDataRel());
Name = ".init_array";
if (Priority != 65535) {
Name += '.';
Name += utostr(Priority);
}
Type = ELF::SHT_INIT_ARRAY;
} else {
std::string Name = std::string(".ctors.") + utostr(65535 - Priority);
return getContext().getELFSection(Name, ELF::SHT_PROGBITS,
ELF::SHF_ALLOC |ELF::SHF_WRITE,
SectionKind::getDataRel());
// The default scheme is .ctor / .dtor, so we have to invert the priority
// numbering.
Name = std::string(".ctors");
if (Priority != 65535) {
Name += '.';
Name += utostr(65535 - Priority);
}
Type = ELF::SHT_PROGBITS;
}
return getContext().getELFSection(Name, Type, Flags, Kind, 0, COMDAT);
}
const MCSection *TargetLoweringObjectFileELF::getStaticDtorSection(
unsigned Priority, const MCSymbol *KeySym) const {
// The default scheme is .ctor / .dtor, so we have to invert the priority
// numbering.
if (Priority == 65535)
return StaticDtorSection;
std::string Name;
unsigned Type;
unsigned Flags = ELF::SHF_ALLOC | ELF::SHF_WRITE;
SectionKind Kind = SectionKind::getDataRel();
StringRef COMDAT = KeySym ? KeySym->getName() : "";
if (KeySym)
Flags |= ELF::SHF_GROUP;
if (UseInitArray) {
std::string Name = std::string(".fini_array.") + utostr(Priority);
return getContext().getELFSection(Name, ELF::SHT_FINI_ARRAY,
ELF::SHF_ALLOC | ELF::SHF_WRITE,
SectionKind::getDataRel());
Name = ".fini_array";
if (Priority != 65535) {
Name += '.';
Name += utostr(Priority);
}
Type = ELF::SHT_FINI_ARRAY;
} else {
std::string Name = std::string(".dtors.") + utostr(65535 - Priority);
return getContext().getELFSection(Name, ELF::SHT_PROGBITS,
ELF::SHF_ALLOC |ELF::SHF_WRITE,
SectionKind::getDataRel());
// The default scheme is .ctor / .dtor, so we have to invert the priority
// numbering.
Name = ".dtors";
if (Priority != 65535) {
Name += '.';
Name += utostr(65535 - Priority);
}
Type = ELF::SHT_PROGBITS;
}
return getContext().getELFSection(Name, Type, Flags, Kind, 0, COMDAT);
}
void