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Partial code for emitting thread local bss data.

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llvm-svn: 104197
This commit is contained in:
Eric Christopher 2010-05-20 00:49:07 +00:00
parent e7a42798bc
commit 1a7bc06b28
4 changed files with 10 additions and 0 deletions
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1
include/llvm/MC/MCAsmInfo.h
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@ -303,6 +303,7 @@ namespace llvm {
// Accessors. // Accessors.
// //
bool hasMachoZeroFillDirective() const { return HasMachoZeroFillDirective; } bool hasMachoZeroFillDirective() const { return HasMachoZeroFillDirective; }
bool hasMachoTBSSDirective() const { return HasMachoTBSSDirective; }
bool hasStaticCtorDtorReferenceInStaticMode() const { bool hasStaticCtorDtorReferenceInStaticMode() const {
return HasStaticCtorDtorReferenceInStaticMode; return HasStaticCtorDtorReferenceInStaticMode;
} }

7
lib/CodeGen/AsmPrinter/AsmPrinter.cpp
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@ -310,6 +310,13 @@ void AsmPrinter::EmitGlobalVariable(const GlobalVariable *GV) {
OutStreamer.EmitZerofill(TheSection, GVSym, Size, 1 << AlignLog); OutStreamer.EmitZerofill(TheSection, GVSym, Size, 1 << AlignLog);
return; return;
} }
// Handle the tbss directive on darwin which is a thread local bss directive
// like zerofill.
if (GVKind.isThreadBSS() && MAI->hasMachoTBSSDirective()) {
OutStreamer.EmitTBSSSymbol(TheSection, GVSym, Size, 1 << AlignLog);
return;
}
OutStreamer.SwitchSection(TheSection); OutStreamer.SwitchSection(TheSection);

1
lib/MC/MCAsmInfo.cpp
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@ -21,6 +21,7 @@ using namespace llvm;
MCAsmInfo::MCAsmInfo() { MCAsmInfo::MCAsmInfo() {
HasSubsectionsViaSymbols = false; HasSubsectionsViaSymbols = false;
HasMachoZeroFillDirective = false; HasMachoZeroFillDirective = false;
HasMachoTBSSDirective = false;
HasStaticCtorDtorReferenceInStaticMode = false; HasStaticCtorDtorReferenceInStaticMode = false;
MaxInstLength = 4; MaxInstLength = 4;
PCSymbol = "$"; PCSymbol = "$";

1
lib/MC/MCAsmInfoDarwin.cpp
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@ -35,6 +35,7 @@ MCAsmInfoDarwin::MCAsmInfoDarwin() {
WeakRefDirective = "\t.weak_reference "; WeakRefDirective = "\t.weak_reference ";
ZeroDirective = "\t.space\t"; // ".space N" emits N zeros. ZeroDirective = "\t.space\t"; // ".space N" emits N zeros.
HasMachoZeroFillDirective = true; // Uses .zerofill HasMachoZeroFillDirective = true; // Uses .zerofill
HasMachoTBSSDirective = true; // Uses .tbss
HasStaticCtorDtorReferenceInStaticMode = true; HasStaticCtorDtorReferenceInStaticMode = true;
HiddenVisibilityAttr = MCSA_PrivateExtern; HiddenVisibilityAttr = MCSA_PrivateExtern;