MC: Split MCObjectWriter out of MCAssembler.cpp.

[oota-llvm.git] / lib / MC / MCNullStreamer.cpp

diff --git a/lib/MC/MCNullStreamer.cpp b/lib/MC/MCNullStreamer.cpp
index 1d2b778ffcbcfcfae170b2f5715266bc79488602..5f0c64adffd4a9f3903049d452b279b1c53df0ca 100644 (file)
--- a/lib/MC/MCNullStreamer.cpp
+++ b/lib/MC/MCNullStreamer.cpp
@@ -29,7 +29,11 @@ namespace {
       CurSection = Section;
     }
 
-    virtual void EmitLabel(MCSymbol *Symbol) {}
+    virtual void EmitLabel(MCSymbol *Symbol) {
+      assert(Symbol->isUndefined() && "Cannot define a symbol twice!");
+      assert(CurSection && "Cannot emit before setting section!");
+      Symbol->setSection(*CurSection);
+    }
 
     virtual void EmitAssemblerFlag(MCAssemblerFlag Flag) {}
 
@@ -50,14 +54,19 @@ namespace {
 
     virtual void EmitValue(const MCExpr *Value, unsigned Size,
                            unsigned AddrSpace) {}
-
+    virtual void EmitGPRel32Value(const MCExpr *Value) {}
     virtual void EmitValueToAlignment(unsigned ByteAlignment, int64_t Value = 0,
                                       unsigned ValueSize = 1,
                                       unsigned MaxBytesToEmit = 0) {}
 
+    virtual void EmitCodeAlignment(unsigned ByteAlignment,
+                                   unsigned MaxBytesToEmit = 0) {}
+
     virtual void EmitValueToOffset(const MCExpr *Offset,
                                    unsigned char Value = 0) {}
     
+    virtual void EmitFileDirective(StringRef Filename) {}
+    virtual void EmitDwarfFileDirective(unsigned FileNo,StringRef Filename) {}
     virtual void EmitInstruction(const MCInst &Inst) {}
 
     virtual void Finish() {}