1 //===- lib/MC/MCNullStreamer.cpp - Dummy Streamer Implementation ----------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #include "llvm/ADT/StringRef.h"
10 #include "llvm/MC/MCInst.h"
11 #include "llvm/MC/MCStreamer.h"
12 #include "llvm/MC/MCSymbol.h"
13
14 using namespace llvm;
15
16 namespace {
17
18 class MCNullStreamer : public MCStreamer {
19 public:
MCNullStreamer(MCContext & Context)20 MCNullStreamer(MCContext &Context) : MCStreamer(Context) {}
21
22 /// @name MCStreamer Interface
23 /// @{
24
hasRawTextSupport() const25 bool hasRawTextSupport() const override { return true; }
emitRawTextImpl(StringRef String)26 void emitRawTextImpl(StringRef String) override {}
27
emitSymbolAttribute(MCSymbol * Symbol,MCSymbolAttr Attribute)28 bool emitSymbolAttribute(MCSymbol *Symbol,
29 MCSymbolAttr Attribute) override {
30 return true;
31 }
32
emitCommonSymbol(MCSymbol * Symbol,uint64_t Size,unsigned ByteAlignment,TailPaddingAmount TailPadding)33 void emitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
34 unsigned ByteAlignment,
35 TailPaddingAmount TailPadding) override {}
emitZerofill(MCSection * Section,MCSymbol * Symbol,uint64_t Size,unsigned ByteAlignment,TailPaddingAmount TailPadding,SMLoc Loc=SMLoc ())36 void emitZerofill(MCSection *Section, MCSymbol *Symbol, uint64_t Size,
37 unsigned ByteAlignment, TailPaddingAmount TailPadding,
38 SMLoc Loc = SMLoc()) override {}
emitGPRel32Value(const MCExpr * Value)39 void emitGPRel32Value(const MCExpr *Value) override {}
BeginCOFFSymbolDef(const MCSymbol * Symbol)40 void BeginCOFFSymbolDef(const MCSymbol *Symbol) override {}
EmitCOFFSymbolStorageClass(int StorageClass)41 void EmitCOFFSymbolStorageClass(int StorageClass) override {}
EmitCOFFSymbolType(int Type)42 void EmitCOFFSymbolType(int Type) override {}
EndCOFFSymbolDef()43 void EndCOFFSymbolDef() override {}
44 };
45
46 }
47
createNullStreamer(MCContext & Context)48 MCStreamer *llvm::createNullStreamer(MCContext &Context) {
49 return new MCNullStreamer(Context);
50 }
51