| 1 | //===- lib/MC/MCNullStreamer.cpp - Dummy Streamer Implementation ----------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "llvm/ADT/StringRef.h" |
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| 10 | #include "llvm/MC/MCDirectives.h" |
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| 11 | #include "llvm/MC/MCStreamer.h" |
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| 12 | #include "llvm/Support/SMLoc.h" |
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| 13 | namespace llvm { |
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| 14 | class MCContext; |
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| 15 | class MCExpr; |
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| 16 | class MCSection; |
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| 17 | class MCSymbol; |
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| 18 | } // namespace llvm |
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| 19 | |
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| 20 | using namespace llvm; |
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| 21 | |
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| 22 | namespace { |
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| 23 | |
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| 24 | class MCNullStreamer : public MCStreamer { |
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| 25 | public: |
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| 26 | MCNullStreamer(MCContext &Context) : MCStreamer(Context) {} |
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| 27 | |
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| 28 | /// @name MCStreamer Interface |
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| 29 | /// @{ |
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| 30 | |
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| 31 | bool hasRawTextSupport() const override { return true; } |
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| 32 | void emitRawTextImpl(StringRef String) override {} |
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| 33 | |
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| 34 | bool emitSymbolAttribute(MCSymbol *Symbol, |
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| 35 | MCSymbolAttr Attribute) override { |
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| 36 | return true; |
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| 37 | } |
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| 38 | |
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| 39 | void emitCommonSymbol(MCSymbol *Symbol, uint64_t Size, |
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| 40 | Align ByteAlignment) override {} |
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| 41 | void emitZerofill(MCSection *Section, MCSymbol *Symbol = nullptr, |
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| 42 | uint64_t Size = 0, Align ByteAlignment = Align(1), |
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| 43 | SMLoc Loc = SMLoc()) override {} |
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| 44 | void emitGPRel32Value(const MCExpr *Value) override {} |
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| 45 | void beginCOFFSymbolDef(const MCSymbol *Symbol) override {} |
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| 46 | void emitCOFFSymbolStorageClass(int StorageClass) override {} |
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| 47 | void emitCOFFSymbolType(int Type) override {} |
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| 48 | void endCOFFSymbolDef() override {} |
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| 49 | void |
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| 50 | emitXCOFFSymbolLinkageWithVisibility(MCSymbol *Symbol, MCSymbolAttr Linkage, |
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| 51 | MCSymbolAttr Visibility) override {} |
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| 52 | }; |
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| 53 | |
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| 54 | } |
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| 55 | |
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| 56 | MCStreamer *llvm::createNullStreamer(MCContext &Context) { |
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| 57 | return new MCNullStreamer(Context); |
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| 58 | } |
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| 59 | |
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