Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 14 | pmbaty | 1 | //===- MCWasmStreamer.h - MCStreamer Wasm Object File Interface -*- C++ -*-===// |
| 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 | #ifndef LLVM_MC_MCWASMSTREAMER_H |
||
| 10 | #define LLVM_MC_MCWASMSTREAMER_H |
||
| 11 | |||
| 12 | #include "MCAsmBackend.h" |
||
| 13 | #include "MCCodeEmitter.h" |
||
| 14 | #include "llvm/MC/MCDirectives.h" |
||
| 15 | #include "llvm/MC/MCObjectStreamer.h" |
||
| 16 | #include "llvm/MC/MCObjectWriter.h" |
||
| 17 | #include "llvm/Support/DataTypes.h" |
||
| 18 | |||
| 19 | namespace llvm { |
||
| 20 | class MCExpr; |
||
| 21 | class MCInst; |
||
| 22 | |||
| 23 | class MCWasmStreamer : public MCObjectStreamer { |
||
| 24 | public: |
||
| 25 | MCWasmStreamer(MCContext &Context, std::unique_ptr<MCAsmBackend> TAB, |
||
| 26 | std::unique_ptr<MCObjectWriter> OW, |
||
| 27 | std::unique_ptr<MCCodeEmitter> Emitter) |
||
| 28 | : MCObjectStreamer(Context, std::move(TAB), std::move(OW), |
||
| 29 | std::move(Emitter)), |
||
| 30 | SeenIdent(false) {} |
||
| 31 | |||
| 32 | ~MCWasmStreamer() override; |
||
| 33 | |||
| 34 | /// state management |
||
| 35 | void reset() override { |
||
| 36 | SeenIdent = false; |
||
| 37 | MCObjectStreamer::reset(); |
||
| 38 | } |
||
| 39 | |||
| 40 | /// \name MCStreamer Interface |
||
| 41 | /// @{ |
||
| 42 | |||
| 43 | void changeSection(MCSection *Section, const MCExpr *Subsection) override; |
||
| 44 | void emitLabel(MCSymbol *Symbol, SMLoc Loc = SMLoc()) override; |
||
| 45 | void emitLabelAtPos(MCSymbol *Symbol, SMLoc Loc, MCFragment *F, |
||
| 46 | uint64_t Offset) override; |
||
| 47 | void emitAssemblerFlag(MCAssemblerFlag Flag) override; |
||
| 48 | void emitThumbFunc(MCSymbol *Func) override; |
||
| 49 | void emitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol) override; |
||
| 50 | bool emitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute) override; |
||
| 51 | void emitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) override; |
||
| 52 | void emitCommonSymbol(MCSymbol *Symbol, uint64_t Size, |
||
| 53 | Align ByteAlignment) override; |
||
| 54 | |||
| 55 | void emitELFSize(MCSymbol *Symbol, const MCExpr *Value) override; |
||
| 56 | |||
| 57 | void emitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size, |
||
| 58 | Align ByteAlignment) override; |
||
| 59 | |||
| 60 | void emitZerofill(MCSection *Section, MCSymbol *Symbol = nullptr, |
||
| 61 | uint64_t Size = 0, Align ByteAlignment = Align(1), |
||
| 62 | SMLoc Loc = SMLoc()) override; |
||
| 63 | void emitTBSSSymbol(MCSection *Section, MCSymbol *Symbol, uint64_t Size, |
||
| 64 | Align ByteAlignment = Align(1)) override; |
||
| 65 | |||
| 66 | void emitIdent(StringRef IdentString) override; |
||
| 67 | |||
| 68 | void finishImpl() override; |
||
| 69 | |||
| 70 | private: |
||
| 71 | void emitInstToFragment(const MCInst &Inst, const MCSubtargetInfo &) override; |
||
| 72 | void emitInstToData(const MCInst &Inst, const MCSubtargetInfo &) override; |
||
| 73 | |||
| 74 | void fixSymbolsInTLSFixups(const MCExpr *expr); |
||
| 75 | |||
| 76 | /// Merge the content of the fragment \p EF into the fragment \p DF. |
||
| 77 | void mergeFragment(MCDataFragment *, MCDataFragment *); |
||
| 78 | |||
| 79 | bool SeenIdent; |
||
| 80 | }; |
||
| 81 | |||
| 82 | } // end namespace llvm |
||
| 83 | |||
| 84 | #endif |