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Add support for implicit TLS model used with MS VC runtime.

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Patch by Kai Nacke!

llvm-svn: 150307
This commit is contained in:
Anton Korobeynikov
2012-02-11 17:26:53 +00:00
parent 55011c017c
commit c6b4017ce2
21 changed files with 233 additions and 57 deletions
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11
llvm/lib/CodeGen/TargetLoweringObjectFileImpl.cpp
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@@ -588,6 +588,11 @@ getCOFFSectionFlags(SectionKind K) {
COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA |
COFF::IMAGE_SCN_MEM_READ |
COFF::IMAGE_SCN_MEM_WRITE;
else if (K.isThreadLocal())
Flags |=
COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
COFF::IMAGE_SCN_MEM_READ |
COFF::IMAGE_SCN_MEM_WRITE;
else if (K.isReadOnly())
Flags |=
COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
@@ -614,6 +619,8 @@ static const char *getCOFFSectionPrefixForUniqueGlobal(SectionKind Kind) {
return ".text$";
if (Kind.isBSS ())
return ".bss$";
if (Kind.isThreadLocal())
return ".tls$";
if (Kind.isWriteable())
return ".data$";
return ".rdata$";
@@ -623,7 +630,6 @@ static const char *getCOFFSectionPrefixForUniqueGlobal(SectionKind Kind) {
const MCSection *TargetLoweringObjectFileCOFF::
SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind,
Mangler *Mang, const TargetMachine &TM) const {
assert(!Kind.isThreadLocal() && "Doesn't support TLS");
// 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.
@@ -644,6 +650,9 @@ SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind,
if (Kind.isText())
return getTextSection();
if (Kind.isThreadLocal())
return getTLSDataSection();
return getDataSection();
}