freebsd-dev/contrib/llvm/tools/lld/ELF/LTO.h
2017-04-16 16:35:48 +00:00

58 lines
1.3 KiB
C++

//===- LTO.h ----------------------------------------------------*- C++ -*-===//
//
// The LLVM Linker
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file provides a way to combine bitcode files into one ELF
// file by compiling them using LLVM.
//
// If LTO is in use, your input files are not in regular ELF files
// but instead LLVM bitcode files. In that case, the linker has to
// convert bitcode files into the native format so that we can create
// an ELF file that contains native code. This file provides that
// functionality.
//
//===----------------------------------------------------------------------===//
#ifndef LLD_ELF_LTO_H
#define LLD_ELF_LTO_H
#include "lld/Core/LLVM.h"
#include "llvm/ADT/SmallString.h"
#include <memory>
#include <vector>
namespace llvm {
namespace lto {
class LTO;
}
}
namespace lld {
namespace elf {
class BitcodeFile;
class InputFile;
class BitcodeCompiler {
public:
BitcodeCompiler();
~BitcodeCompiler();
void add(BitcodeFile &F);
std::vector<InputFile *> compile();
private:
std::unique_ptr<llvm::lto::LTO> LTOObj;
std::vector<SmallString<0>> Buff;
std::vector<std::unique_ptr<MemoryBuffer>> Files;
};
}
}
#endif