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Switch llvm to using comdats. For now always use groups with a single

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section.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125526 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2011-02-14 22:23:49 +00:00
parent 56519aac04
commit 5d618ef7f1
5 changed files with 18 additions and 28 deletions
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32
lib/CodeGen/TargetLoweringObjectFileImpl.cpp
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@ -266,22 +266,6 @@ getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind,
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) {
@ -317,19 +301,21 @@ SelectSectionForGlobal(const GlobalValue *GV, 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;