1 //===- lib/MC/MCNullStreamer.cpp - Dummy Streamer Implementation ----------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "llvm/MC/MCStreamer.h" 11 #include "llvm/MC/MCContext.h" 12 #include "llvm/MC/MCInst.h" 13 #include "llvm/MC/MCSectionMachO.h" 14 #include "llvm/MC/MCSymbol.h" 15 16 using namespace llvm; 17 18 namespace { 19 20 class MCNullStreamer : public MCStreamer { 21 public: 22 MCNullStreamer(MCContext &Context) : MCStreamer(Context) {} 23 24 /// @name MCStreamer Interface 25 /// @{ 26 27 bool EmitSymbolAttribute(MCSymbol *Symbol, 28 MCSymbolAttr Attribute) override { 29 return true; 30 } 31 32 void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size, 33 unsigned ByteAlignment) override {} 34 void EmitZerofill(MCSection *Section, MCSymbol *Symbol = nullptr, 35 uint64_t Size = 0, unsigned ByteAlignment = 0) override {} 36 void EmitGPRel32Value(const MCExpr *Value) override {} 37 }; 38 39 } 40 41 MCStreamer *llvm::createNullStreamer(MCContext &Context) { 42 return new MCNullStreamer(Context); 43 } 44
