Add AsmParser support for darwin tbss directive.

Nothing uses this yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103757 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 18 insertions, 0 deletions

diff --git a/lib/MC/MCAsmStreamer.cpp b/lib/MC/MCAsmStreamer.cpp
index 6acc90af8a..62735ad3f3 100644
--- a/lib/MC/MCAsmStreamer.cpp
+++ b/lib/MC/MCAsmStreamer.cpp
@@ -126,6 +126,9 @@ public:
   virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
                             unsigned Size = 0, unsigned ByteAlignment = 0);
 
+  virtual void EmitTBSSSymbol (MCSymbol *Symbol, uint64_t Size,
+                               unsigned ByteAlignment = 0);
+                               
   virtual void EmitBytes(StringRef Data, unsigned AddrSpace);
 
   virtual void EmitValue(const MCExpr *Value, unsigned Size,unsigned AddrSpace);
@@ -360,6 +363,21 @@ void MCAsmStreamer::EmitZerofill(const MCSection *Section, MCSymbol *Symbol,
   EmitEOL();
 }
 
+// .tbss sym$tlv$init, size, align
+void MCAsmStreamer::EmitTBSSSymbol(MCSymbol *Symbol, uint64_t Size,
+                                   unsigned ByteAlignment) {
+  assert(Symbol != NULL && "Symbol shouldn't be NULL!");
+  OS << ".tbss ";
+  
+  // This is a mach-o specific directive and the name requires some mangling.
+  OS << *Symbol << "$tlv$init, " << Size;
+  
+  // Output align if we have it.
+  if (ByteAlignment != 0) OS << ", " << Log2_32(ByteAlignment);
+  
+  EmitEOL();
+}
+
 static inline char toOctal(int X) { return (X&7)+'0'; }
 
 static void PrintQuotedString(StringRef Data, raw_ostream &OS) {