Subversion Repositories QNX 8.QNX8 LLVM/Clang compiler suite

//===-- llvm/MC/MCWasmObjectWriter.h - Wasm Object Writer -------*- 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_MCWASMOBJECTWRITER_H

#define LLVM_MC_MCWASMOBJECTWRITER_H

#include "llvm/MC/MCObjectWriter.h"

#include <memory>

namespace llvm {

class MCFixup;

class MCSectionWasm;

class MCValue;

class raw_pwrite_stream;

class MCWasmObjectTargetWriter : public MCObjectTargetWriter {

  const unsigned Is64Bit : 1;

  const unsigned IsEmscripten : 1;

protected:

  explicit MCWasmObjectTargetWriter(bool Is64Bit_, bool IsEmscripten);

public:

  virtual ~MCWasmObjectTargetWriter();

  Triple::ObjectFormatType getFormat() const override { return Triple::Wasm; }

  static bool classof(const MCObjectTargetWriter *W) {

    return W->getFormat() == Triple::Wasm;

  }

  virtual unsigned getRelocType(const MCValue &Target, const MCFixup &Fixup,

                                const MCSectionWasm &FixupSection,

                                bool IsLocRel) const = 0;

  /// \name Accessors

  /// @{

  bool is64Bit() const { return Is64Bit; }

  bool isEmscripten() const { return IsEmscripten; }

  /// @}

};

/// Construct a new Wasm writer instance.

///

/// \param MOTW - The target specific Wasm writer subclass.

/// \param OS - The stream to write to.

/// \returns The constructed object writer.

std::unique_ptr<MCObjectWriter>

createWasmObjectWriter(std::unique_ptr<MCWasmObjectTargetWriter> MOTW,

                       raw_pwrite_stream &OS);

std::unique_ptr<MCObjectWriter>

createWasmDwoObjectWriter(std::unique_ptr<MCWasmObjectTargetWriter> MOTW,

                          raw_pwrite_stream &OS, raw_pwrite_stream &DwoOS);

} // namespace llvm

#endif