llvm-mirror/include/llvm/MC/MCWasmObjectWriter.h
Peter Collingbourne 799b49b89d MC: Separate creating a generic object writer from creating a target object writer. NFCI.
With this we gain a little flexibility in how the generic object
writer is created.

Part of PR37466.

Differential Revision: https://reviews.llvm.org/D47045

llvm-svn: 332868
2018-05-21 19:20:29 +00:00

57 lines
1.5 KiB
C++

//===-- llvm/MC/MCWasmObjectWriter.h - Wasm Object Writer -------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_MC_MCWASMOBJECTWRITER_H
#define LLVM_MC_MCWASMOBJECTWRITER_H
#include "llvm/MC/MCObjectWriter.h"
#include <memory>
namespace llvm {
class MCFixup;
class MCValue;
class raw_pwrite_stream;
class MCWasmObjectTargetWriter : public MCObjectTargetWriter {
const unsigned Is64Bit : 1;
protected:
explicit MCWasmObjectTargetWriter(bool Is64Bit_);
public:
virtual ~MCWasmObjectTargetWriter();
virtual Triple::ObjectFormatType getFormat() const { return Triple::Wasm; }
static bool classof(const MCObjectTargetWriter *W) {
return W->getFormat() == Triple::Wasm;
}
virtual unsigned getRelocType(const MCValue &Target,
const MCFixup &Fixup) const = 0;
/// \name Accessors
/// @{
bool is64Bit() const { return Is64Bit; }
/// @}
};
/// 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);
} // End llvm namespace
#endif