| 1 | //===- MCDXContainerStreamer.h - MCDXContainerStreamer Interface ---*- C++ ===// |
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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 | // Overrides MCObjectStreamer to disable all unnecessary features with stubs. |
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| 10 | // The DXContainer format isn't a fully featured object format. It doesn't |
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| 11 | // support symbols, and initially it will not support instruction data since it |
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| 12 | // is used as a bitcode container for DXIL. |
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| 13 | // |
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| 14 | //===----------------------------------------------------------------------===// |
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| 15 | |
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| 16 | #ifndef LLVM_MC_MCDXCONTAINERSTREAMER_H |
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| 17 | #define LLVM_MC_MCDXCONTAINERSTREAMER_H |
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| 18 | |
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| 19 | #include "llvm/MC/MCAsmBackend.h" |
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| 20 | #include "llvm/MC/MCCodeEmitter.h" |
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| 21 | #include "llvm/MC/MCObjectStreamer.h" |
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| 22 | #include "llvm/MC/MCObjectWriter.h" |
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| 23 | |
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| 24 | namespace llvm { |
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| 25 | class MCInst; |
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| 26 | class raw_ostream; |
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| 27 | |
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| 28 | class MCDXContainerStreamer : public MCObjectStreamer { |
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| 29 | public: |
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| 30 | MCDXContainerStreamer(MCContext &Context, std::unique_ptr<MCAsmBackend> TAB, |
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| 31 | std::unique_ptr<MCObjectWriter> OW, |
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| 32 | std::unique_ptr<MCCodeEmitter> Emitter) |
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| 33 | : MCObjectStreamer(Context, std::move(TAB), std::move(OW), |
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| 34 | std::move(Emitter)) {} |
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| 35 | |
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| 36 | bool emitSymbolAttribute(MCSymbol *, MCSymbolAttr) override { return false; } |
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| 37 | void emitCommonSymbol(MCSymbol *, uint64_t, Align) override {} |
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| 38 | void emitZerofill(MCSection *, MCSymbol *Symbol = nullptr, uint64_t Size = 0, |
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| 39 | Align ByteAlignment = Align(1), |
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| 40 | SMLoc Loc = SMLoc()) override {} |
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| 41 | |
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| 42 | private: |
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| 43 | void emitInstToData(const MCInst &, const MCSubtargetInfo &) override; |
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| 44 | }; |
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| 45 | |
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| 46 | } // end namespace llvm |
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| 47 | |
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| 48 | #endif // LLVM_MC_MCDXCONTAINERSTREAMER_H |
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| 49 | |
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