1//===-- yaml2obj.cpp ------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "llvm/ObjectYAML/yaml2obj.h"
10#include "llvm/ADT/StringExtras.h"
11#include "llvm/ADT/Twine.h"
12#include "llvm/Object/ObjectFile.h"
13#include "llvm/ObjectYAML/ObjectYAML.h"
14#include "llvm/Support/WithColor.h"
15#include "llvm/Support/YAMLTraits.h"
16
17namespace llvm {
18namespace yaml {
19
20bool convertYAML(yaml::Input &YIn, raw_ostream &Out, ErrorHandler ErrHandler,
21 unsigned DocNum, uint64_t MaxSize) {
22 unsigned CurDocNum = 0;
23 do {
24 if (++CurDocNum != DocNum)
25 continue;
26
27 yaml::YamlObjectFile Doc;
28 YIn >> Doc;
29 if (std::error_code EC = YIn.error()) {
30 ErrHandler("failed to parse YAML input: " + EC.message());
31 return false;
32 }
33
34 if (Doc.Arch)
35 return yaml2archive(Doc&: *Doc.Arch, Out, EH: ErrHandler);
36 if (Doc.Elf)
37 return yaml2elf(Doc&: *Doc.Elf, Out, EH: ErrHandler, MaxSize);
38 if (Doc.Coff)
39 return yaml2coff(Doc&: *Doc.Coff, Out, EH: ErrHandler);
40 if (Doc.Goff)
41 return yaml2goff(Doc&: *Doc.Goff, Out, EH: ErrHandler);
42 if (Doc.MachO || Doc.FatMachO)
43 return yaml2macho(Doc, Out, EH: ErrHandler);
44 if (Doc.Minidump)
45 return yaml2minidump(Doc&: *Doc.Minidump, Out, EH: ErrHandler);
46 if (Doc.Offload)
47 return yaml2offload(Doc&: *Doc.Offload, Out, EH: ErrHandler);
48 if (Doc.Wasm)
49 return yaml2wasm(Doc&: *Doc.Wasm, Out, EH: ErrHandler);
50 if (Doc.Xcoff)
51 return yaml2xcoff(Doc&: *Doc.Xcoff, Out, EH: ErrHandler);
52 if (Doc.DXContainer)
53 return yaml2dxcontainer(Doc&: *Doc.DXContainer, Out, EH: ErrHandler);
54
55 ErrHandler("unknown document type");
56 return false;
57
58 } while (YIn.nextDocument());
59
60 ErrHandler("cannot find the " + Twine(DocNum) +
61 getOrdinalSuffix(Val: DocNum).data() + " document");
62 return false;
63}
64
65std::unique_ptr<object::ObjectFile>
66yaml2ObjectFile(SmallVectorImpl<char> &Storage, StringRef Yaml,
67 ErrorHandler ErrHandler) {
68 Storage.clear();
69 raw_svector_ostream OS(Storage);
70
71 yaml::Input YIn(Yaml);
72 if (!convertYAML(YIn, Out&: OS, ErrHandler))
73 return {};
74
75 Expected<std::unique_ptr<object::ObjectFile>> ObjOrErr =
76 object::ObjectFile::createObjectFile(
77 Object: MemoryBufferRef(OS.str(), "YamlObject"));
78 if (ObjOrErr)
79 return std::move(*ObjOrErr);
80
81 ErrHandler(toString(E: ObjOrErr.takeError()));
82 return {};
83}
84
85} // namespace yaml
86} // namespace llvm
87