Partial code for emitting thread local bss data.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104197 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/llvm/MC/MCAsmInfo.h b/include/llvm/MC/MCAsmInfo.h
index f57f642..e5f8282 100644
--- a/include/llvm/MC/MCAsmInfo.h
+++ b/include/llvm/MC/MCAsmInfo.h
@@ -303,6 +303,7 @@
// Accessors.
//
bool hasMachoZeroFillDirective() const { return HasMachoZeroFillDirective; }
+ bool hasMachoTBSSDirective() const { return HasMachoTBSSDirective; }
bool hasStaticCtorDtorReferenceInStaticMode() const {
return HasStaticCtorDtorReferenceInStaticMode;
}
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index bd7d0e5..50a5075 100644
--- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -310,6 +310,13 @@
OutStreamer.EmitZerofill(TheSection, GVSym, Size, 1 << AlignLog);
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);
diff --git a/lib/MC/MCAsmInfo.cpp b/lib/MC/MCAsmInfo.cpp
index 2b23994..a275be2 100644
--- a/lib/MC/MCAsmInfo.cpp
+++ b/lib/MC/MCAsmInfo.cpp
@@ -21,6 +21,7 @@
MCAsmInfo::MCAsmInfo() {
HasSubsectionsViaSymbols = false;
HasMachoZeroFillDirective = false;
+ HasMachoTBSSDirective = false;
HasStaticCtorDtorReferenceInStaticMode = false;
MaxInstLength = 4;
PCSymbol = "$";
diff --git a/lib/MC/MCAsmInfoDarwin.cpp b/lib/MC/MCAsmInfoDarwin.cpp
index 3c31caa..0bd3b2d 100644
--- a/lib/MC/MCAsmInfoDarwin.cpp
+++ b/lib/MC/MCAsmInfoDarwin.cpp
@@ -35,6 +35,7 @@
WeakRefDirective = "\t.weak_reference ";
ZeroDirective = "\t.space\t"; // ".space N" emits N zeros.
HasMachoZeroFillDirective = true; // Uses .zerofill
+ HasMachoTBSSDirective = true; // Uses .tbss
HasStaticCtorDtorReferenceInStaticMode = true;
HiddenVisibilityAttr = MCSA_PrivateExtern;