This patch is needed to make c++ exceptions work for mips16.

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

diff --git a/lib/MC/MCNullStreamer.cpp b/lib/MC/MCNullStreamer.cpp
index 3ac79cbf0a246e657508158b39d82466164a1c62..bb84c4f22fe484a46a08f5d56a72c5c0228c5399 100644 (file)
--- a/lib/MC/MCNullStreamer.cpp
+++ b/lib/MC/MCNullStreamer.cpp
@@ -8,12 +8,10 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/MC/MCStreamer.h"
-
 #include "llvm/MC/MCContext.h"
 #include "llvm/MC/MCInst.h"
 #include "llvm/MC/MCSectionMachO.h"
 #include "llvm/MC/MCSymbol.h"
-#include "llvm/MC/MCValue.h"
 
 using namespace llvm;
 
@@ -26,47 +24,88 @@ namespace {
     /// @name MCStreamer Interface
     /// @{
 
-    virtual void SwitchSection(MCSection *Section) {}
+    virtual void InitSections() {
+    }
 
-    virtual void EmitLabel(MCSymbol *Symbol) {}
+    virtual void ChangeSection(const MCSection *Section) {
+    }
 
-    virtual void EmitAssemblerFlag(AssemblerFlag Flag) {}
+    virtual void EmitLabel(MCSymbol *Symbol) {
+      assert(Symbol->isUndefined() && "Cannot define a symbol twice!");
+      assert(getCurrentSection() && "Cannot emit before setting section!");
+      Symbol->setSection(*getCurrentSection());
+    }
+    virtual void EmitDebugLabel(MCSymbol *Symbol) {
+      EmitLabel(Symbol);
+    }
+    virtual void EmitAssemblerFlag(MCAssemblerFlag Flag) {}
+    virtual void EmitThumbFunc(MCSymbol *Func) {}
 
-    virtual void EmitAssignment(MCSymbol *Symbol, const MCValue &Value,
-                                bool MakeAbsolute = false) {}
+    virtual void EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) {}
+    virtual void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol){}
+    virtual void EmitDwarfAdvanceLineAddr(int64_t LineDelta,
+                                          const MCSymbol *LastLabel,
+                                          const MCSymbol *Label,
+                                          unsigned PointerSize) {}
 
-    virtual void EmitSymbolAttribute(MCSymbol *Symbol, SymbolAttr Attribute) {}
+    virtual void EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute){}
 
     virtual void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {}
 
-    virtual void EmitLocalSymbol(MCSymbol *Symbol, const MCValue &Value) {}
-
-    virtual void EmitCommonSymbol(MCSymbol *Symbol, unsigned Size,
-                                  unsigned Pow2Alignment, bool IsLocal) {}
-
-    virtual void EmitZerofill(MCSection *Section, MCSymbol *Symbol = NULL,
-                              unsigned Size = 0, unsigned Pow2Alignment = 0) {}
-
-    virtual void EmitBytes(const StringRef &Data) {}
-
-    virtual void EmitValue(const MCValue &Value, unsigned Size) {}
-
+    virtual void BeginCOFFSymbolDef(const MCSymbol *Symbol) {}
+    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,
+                                       unsigned ByteAlignment) {}
+    virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 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 EmitValueImpl(const MCExpr *Value, unsigned Size,
+                               unsigned AddrSpace) {}
+    virtual void EmitULEB128Value(const MCExpr *Value) {}
+    virtual void EmitSLEB128Value(const MCExpr *Value) {}
+    virtual void EmitGPRel32Value(const MCExpr *Value) {}
     virtual void EmitValueToAlignment(unsigned ByteAlignment, int64_t Value = 0,
                                       unsigned ValueSize = 1,
                                       unsigned MaxBytesToEmit = 0) {}
 
-    virtual void EmitValueToOffset(const MCValue &Offset, 
-                                   unsigned char Value = 0) {}
-    
+    virtual void EmitCodeAlignment(unsigned ByteAlignment,
+                                   unsigned MaxBytesToEmit = 0) {}
+
+    virtual bool EmitValueToOffset(const MCExpr *Offset,
+                                   unsigned char Value = 0) { return false; }
+
+    virtual void EmitFileDirective(StringRef Filename) {}
+    virtual bool EmitDwarfFileDirective(unsigned FileNo, StringRef Directory,
+                                        StringRef Filename) {
+      return false;
+    }
+    virtual void EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
+                                       unsigned Column, unsigned Flags,
+                                       unsigned Isa, unsigned Discriminator,
+                                       StringRef FileName) {}
     virtual void EmitInstruction(const MCInst &Inst) {}
 
-    virtual void Finish() {}
-    
+    virtual void FinishImpl() {}
+
+    virtual void EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) {
+      RecordProcEnd(Frame);
+    }
+
     /// @}
   };
 
 }
-    
+
 MCStreamer *llvm::createNullStreamer(MCContext &Context) {
   return new MCNullStreamer(Context);
 }