llvm-project/llvm/lib/Target/ARM/MCTargetDesc/ARMWinCOFFStreamer.cpp

//===-- ARMWinCOFFStreamer.cpp - ARM Target WinCOFF Streamer ----*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#include "ARMMCTargetDesc.h"
#include "llvm/MC/MCAsmBackend.h"
#include "llvm/MC/MCCodeEmitter.h"
#include "llvm/MC/MCObjectWriter.h"
#include "llvm/MC/MCWinCOFFStreamer.h"

using namespace llvm;

namespace {
class ARMWinCOFFStreamer : public MCWinCOFFStreamer {
public:
  ARMWinCOFFStreamer(MCContext &C, std::unique_ptr<MCAsmBackend> AB,
                     std::unique_ptr<MCCodeEmitter> CE,
                     std::unique_ptr<MCObjectWriter> OW)
      : MCWinCOFFStreamer(C, std::move(AB), std::move(CE), std::move(OW)) {}

  void EmitAssemblerFlag(MCAssemblerFlag Flag) override;
  void EmitThumbFunc(MCSymbol *Symbol) override;
  void FinishImpl() override;
};

void ARMWinCOFFStreamer::EmitAssemblerFlag(MCAssemblerFlag Flag) {
  switch (Flag) {
  default: llvm_unreachable("not implemented");
  case MCAF_SyntaxUnified:
  case MCAF_Code16:
    break;
  }
}

void ARMWinCOFFStreamer::EmitThumbFunc(MCSymbol *Symbol) {
  getAssembler().setIsThumbFunc(Symbol);
}

void ARMWinCOFFStreamer::FinishImpl() {
  EmitFrames(nullptr);

  MCWinCOFFStreamer::FinishImpl();
}
}

MCStreamer *llvm::createARMWinCOFFStreamer(
    MCContext &Context, std::unique_ptr<MCAsmBackend> &&MAB,
    std::unique_ptr<MCObjectWriter> &&OW,
    std::unique_ptr<MCCodeEmitter> &&Emitter, bool RelaxAll,
    bool IncrementalLinkerCompatible) {
  auto *S = new ARMWinCOFFStreamer(Context, std::move(MAB), std::move(Emitter),
                                   std::move(OW));
  S->getAssembler().setIncrementalLinkerCompatible(IncrementalLinkerCompatible);
  return S;
}