56 lines
1.5 KiB
C++
56 lines
1.5 KiB
C++
//===- LTO.h ----------------------------------------------------*- C++ -*-===//
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//
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// The LLVM Linker
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file provides a way to combine bitcode files into one ELF
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// file by compiling them using LLVM.
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//
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// If LTO is in use, your input files are not in regular ELF files
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// but instead LLVM bitcode files. In that case, the linker has to
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// convert bitcode files into the native format so that we can create
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// an ELF file that contains native code. This file provides that
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// functionality.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLD_ELF_LTO_H
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#define LLD_ELF_LTO_H
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#include "lld/Core/LLVM.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/ADT/StringSet.h"
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#include "llvm/IR/LLVMContext.h"
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#include "llvm/IR/Module.h"
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#include "llvm/Linker/IRMover.h"
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namespace lld {
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namespace elf {
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class BitcodeFile;
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class InputFile;
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class BitcodeCompiler {
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public:
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void add(BitcodeFile &F);
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std::unique_ptr<InputFile> compile();
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private:
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llvm::TargetMachine *getTargetMachine();
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llvm::LLVMContext Context;
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llvm::Module Combined{"ld-temp.o", Context};
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llvm::IRMover Mover{Combined};
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SmallString<0> OwningData;
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std::unique_ptr<MemoryBuffer> MB;
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llvm::StringSet<> InternalizedSyms;
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};
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}
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}
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#endif
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