| //===- MCWasmStreamer.h - MCStreamer Wasm Object File Interface -*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_MC_MCWASMSTREAMER_H |
| #define LLVM_MC_MCWASMSTREAMER_H |
| |
| #include "MCAsmBackend.h" |
| #include "MCCodeEmitter.h" |
| #include "llvm/ADT/SmallPtrSet.h" |
| #include "llvm/MC/MCDirectives.h" |
| #include "llvm/MC/MCObjectStreamer.h" |
| #include "llvm/MC/MCObjectWriter.h" |
| #include "llvm/MC/SectionKind.h" |
| #include "llvm/Support/DataTypes.h" |
| |
| namespace llvm { |
| class MCAssembler; |
| class MCExpr; |
| class MCInst; |
| class raw_ostream; |
| |
| class MCWasmStreamer : public MCObjectStreamer { |
| public: |
| MCWasmStreamer(MCContext &Context, std::unique_ptr<MCAsmBackend> TAB, |
| std::unique_ptr<MCObjectWriter> OW, |
| std::unique_ptr<MCCodeEmitter> Emitter) |
| : MCObjectStreamer(Context, std::move(TAB), std::move(OW), |
| std::move(Emitter)), |
| SeenIdent(false) {} |
| |
| ~MCWasmStreamer() override; |
| |
| /// state management |
| void reset() override { |
| SeenIdent = false; |
| MCObjectStreamer::reset(); |
| } |
| |
| /// \name MCStreamer Interface |
| /// @{ |
| |
| void ChangeSection(MCSection *Section, const MCExpr *Subsection) override; |
| void EmitAssemblerFlag(MCAssemblerFlag Flag) override; |
| void EmitThumbFunc(MCSymbol *Func) override; |
| void EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol) override; |
| bool EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute) override; |
| void EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) override; |
| void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size, |
| unsigned ByteAlignment) override; |
| |
| void emitELFSize(MCSymbol *Symbol, const MCExpr *Value) override; |
| |
| void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size, |
| unsigned ByteAlignment) override; |
| |
| void EmitZerofill(MCSection *Section, MCSymbol *Symbol = nullptr, |
| uint64_t Size = 0, unsigned ByteAlignment = 0, |
| SMLoc Loc = SMLoc()) override; |
| void EmitTBSSSymbol(MCSection *Section, MCSymbol *Symbol, uint64_t Size, |
| unsigned ByteAlignment = 0) override; |
| void EmitValueImpl(const MCExpr *Value, unsigned Size, |
| SMLoc Loc = SMLoc()) override; |
| |
| void EmitIdent(StringRef IdentString) override; |
| |
| void EmitValueToAlignment(unsigned, int64_t, unsigned, unsigned) override; |
| |
| void FinishImpl() override; |
| |
| private: |
| void EmitInstToFragment(const MCInst &Inst, const MCSubtargetInfo &) override; |
| void EmitInstToData(const MCInst &Inst, const MCSubtargetInfo &) override; |
| |
| /// Merge the content of the fragment \p EF into the fragment \p DF. |
| void mergeFragment(MCDataFragment *, MCDataFragment *); |
| |
| bool SeenIdent; |
| }; |
| |
| } // end namespace llvm |
| |
| #endif |