mirror of
https://github.com/capstone-engine/llvm-capstone.git
synced 2024-12-24 00:29:25 +00:00
64 lines
1.6 KiB
C++
64 lines
1.6 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/Common/LLVM.h"
|
|
#include "llvm/ADT/DenseSet.h"
|
|
#include "llvm/ADT/SmallString.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
#include <memory>
|
|
#include <vector>
|
|
|
|
namespace llvm {
|
|
namespace lto {
|
|
class LTO;
|
|
}
|
|
} // namespace llvm
|
|
|
|
namespace lld {
|
|
namespace elf {
|
|
|
|
class BitcodeFile;
|
|
class InputFile;
|
|
class LazyObjFile;
|
|
|
|
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>> Buf;
|
|
std::vector<std::unique_ptr<MemoryBuffer>> Files;
|
|
llvm::DenseSet<StringRef> UsedStartStop;
|
|
std::unique_ptr<llvm::raw_fd_ostream> IndexFile;
|
|
llvm::DenseSet<StringRef> ThinIndices;
|
|
};
|
|
} // namespace elf
|
|
} // namespace lld
|
|
|
|
#endif
|