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Fix to correctly support attribute((section("__DATA, __common"))).

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Radar 9012638.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126127 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Stuart Hastings
2011-02-21 17:27:17 +00:00
parent fb456c25c2
commit 6ad82d81cc
2 changed files with 18 additions and 8 deletions
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11
lib/CodeGen/TargetLoweringObjectFileImpl.cpp
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@@ -630,7 +630,7 @@ 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 = (unsigned)MCSectionMachO::SECTION_ATTRIBUTES, StubSize = 0;
std::string ErrorCode =
MCSectionMachO::ParseSectionSpecifier(GV->getSection(), Segment, Section,
TAA, StubSize);
@@ -643,10 +643,19 @@ getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind,
return DataSection;
}
bool TAAWasSet = (TAA != MCSectionMachO::SECTION_ATTRIBUTES);
if (!TAAWasSet)
TAA = 0; // Sensible default if this is a new section.
// Get the section.
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 (!TAAWasSet)
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.