MC CFG: Remap enough for the inserted instruction.

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

diff --git a/lib/MC/MCNullStreamer.cpp b/lib/MC/MCNullStreamer.cpp
index 9577af0102053c404c0678d3bab8019e1a4b1651..87a7db69cd869ee39e0e62ce75368f420e5b6cba 100644 (file)
--- a/lib/MC/MCNullStreamer.cpp
+++ b/lib/MC/MCNullStreamer.cpp
@@ -8,7 +8,6 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/MC/MCStreamer.h"
-
 #include "llvm/MC/MCContext.h"
 #include "llvm/MC/MCInst.h"
 #include "llvm/MC/MCSectionMachO.h"
@@ -20,23 +19,29 @@ namespace {
 
   class MCNullStreamer : public MCStreamer {
   public:
-    MCNullStreamer(MCContext &Context) : MCStreamer(Context) {}
+    MCNullStreamer(MCContext &Context) : MCStreamer(SK_NullStreamer, Context) {}
 
     /// @name MCStreamer Interface
     /// @{
 
+    virtual void InitToTextSection() {
+    }
+
     virtual void InitSections() {
     }
 
-    virtual void ChangeSection(const MCSection *Section) {
+    virtual void ChangeSection(const MCSection *Section,
+                               const MCExpr *Subsection) {
     }
 
     virtual void EmitLabel(MCSymbol *Symbol) {
       assert(Symbol->isUndefined() && "Cannot define a symbol twice!");
-      assert(getCurrentSection() && "Cannot emit before setting section!");
-      Symbol->setSection(*getCurrentSection());
+      assert(getCurrentSection().first &&"Cannot emit before setting section!");
+      Symbol->setSection(*getCurrentSection().first);
+    }
+    virtual void EmitDebugLabel(MCSymbol *Symbol) {
+      EmitLabel(Symbol);
     }
-
     virtual void EmitAssemblerFlag(MCAssemblerFlag Flag) {}
     virtual void EmitThumbFunc(MCSymbol *Func) {}
 
@@ -47,7 +52,9 @@ namespace {
                                           const MCSymbol *Label,
                                           unsigned PointerSize) {}
 
-    virtual void EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute){}
+    virtual bool EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute){
+      return true;
+    }
 
     virtual void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {}
 
@@ -55,20 +62,20 @@ namespace {
     virtual void EmitCOFFSymbolStorageClass(int StorageClass) {}
     virtual void EmitCOFFSymbolType(int Type) {}
     virtual void EndCOFFSymbolDef() {}
+    virtual void EmitCOFFSecRel32(MCSymbol const *Symbol) {}
 
     virtual void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) {}
     virtual void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
                                   unsigned ByteAlignment) {}
-    virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size) {}
-
+    virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
+                                       unsigned ByteAlignment) {}
     virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
-                              unsigned Size = 0, unsigned ByteAlignment = 0) {}
+                              uint64_t Size = 0, unsigned ByteAlignment = 0) {}
     virtual void EmitTBSSSymbol(const MCSection *Section, MCSymbol *Symbol,
                                 uint64_t Size, unsigned ByteAlignment) {}
-    virtual void EmitBytes(StringRef Data, unsigned AddrSpace) {}
+    virtual void EmitBytes(StringRef Data) {}
 
-    virtual void EmitValueImpl(const MCExpr *Value, unsigned Size,
-                               unsigned AddrSpace) {}
+    virtual void EmitValueImpl(const MCExpr *Value, unsigned Size) {}
     virtual void EmitULEB128Value(const MCExpr *Value) {}
     virtual void EmitSLEB128Value(const MCExpr *Value) {}
     virtual void EmitGPRel32Value(const MCExpr *Value) {}
@@ -79,11 +86,12 @@ namespace {
     virtual void EmitCodeAlignment(unsigned ByteAlignment,
                                    unsigned MaxBytesToEmit = 0) {}
 
-    virtual void EmitValueToOffset(const MCExpr *Offset,
-                                   unsigned char Value = 0) {}
-    
+    virtual bool EmitValueToOffset(const MCExpr *Offset,
+                                   unsigned char Value = 0) { return false; }
+
     virtual void EmitFileDirective(StringRef Filename) {}
-    virtual bool EmitDwarfFileDirective(unsigned FileNo,StringRef Filename) {
+    virtual bool EmitDwarfFileDirective(unsigned FileNo, StringRef Directory,
+                                        StringRef Filename, unsigned CUID = 0) {
       return false;
     }
     virtual void EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
@@ -92,13 +100,26 @@ namespace {
                                        StringRef FileName) {}
     virtual void EmitInstruction(const MCInst &Inst) {}
 
-    virtual void Finish() {}
-    
+    virtual void EmitBundleAlignMode(unsigned AlignPow2) {}
+    virtual void EmitBundleLock(bool AlignToEnd) {}
+    virtual void EmitBundleUnlock() {}
+
+    virtual void FinishImpl() {}
+
+    virtual void EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) {
+      RecordProcEnd(Frame);
+    }
+
     /// @}
+
+    static bool classof(const MCStreamer *S) {
+      return S->getKind() == SK_NullStreamer;
+    }
+
   };
 
 }
-    
+
 MCStreamer *llvm::createNullStreamer(MCContext &Context) {
   return new MCNullStreamer(Context);
 }