1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
| //===- LTO.h ----------------------------------------------------*- 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
//
//===----------------------------------------------------------------------===//
//
// This file provides a way to combine bitcode files into one COFF
// file by compiling them using LLVM.
//
// If LTO is in use, your input files are not in regular COFF 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
// a COFF file that contains native code. This file provides that
// functionality.
//
//===----------------------------------------------------------------------===//
#ifndef LLD_COFF_LTO_H
#define LLD_COFF_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 lld {
namespace coff {
class BitcodeFile;
class InputFile;
class BitcodeCompiler {
public:
BitcodeCompiler();
~BitcodeCompiler();
void add(BitcodeFile &f);
std::vector<StringRef> compile();
private:
std::unique_ptr<llvm::lto::LTO> ltoObj;
std::vector<SmallString<0>> buf;
std::vector<std::unique_ptr<MemoryBuffer>> files;
std::unique_ptr<llvm::raw_fd_ostream> indexFile;
llvm::DenseSet<StringRef> thinIndices;
};
}
}
#endif
|