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//===- 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/MC/MCDirectives.h"
#include "llvm/MC/MCObjectStreamer.h"
#include "llvm/MC/MCObjectWriter.h"
#include "llvm/Support/DataTypes.h"
namespace llvm {
class MCExpr;
class MCInst;
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, uint32_t Subsection) override;
void emitLabel(MCSymbol *Symbol, SMLoc Loc = SMLoc()) override;
void emitLabelAtPos(MCSymbol *Symbol, SMLoc Loc, MCDataFragment &F,
uint64_t Offset) 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,
Align ByteAlignment) override;
void emitELFSize(MCSymbol *Symbol, const MCExpr *Value) override;
void emitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
Align ByteAlignment) override;
void emitZerofill(MCSection *Section, MCSymbol *Symbol = nullptr,
uint64_t Size = 0, Align ByteAlignment = Align(1),
SMLoc Loc = SMLoc()) override;
void emitTBSSSymbol(MCSection *Section, MCSymbol *Symbol, uint64_t Size,
Align ByteAlignment = Align(1)) override;
void emitIdent(StringRef IdentString) override;
void finishImpl() override;
private:
void emitInstToFragment(const MCInst &Inst, const MCSubtargetInfo &) override;
void emitInstToData(const MCInst &Inst, const MCSubtargetInfo &) override;
void fixSymbolsInTLSFixups(const MCExpr *expr);
bool SeenIdent;
};
} // end namespace llvm
#endif
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