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/Errc.h"
15#include "llvm/Support/WithColor.h"
16#include "llvm/Support/YAMLTraits.h"
17
18namespace llvm {
19namespace yaml {
20
21bool convertYAML(yaml::Input &YIn, raw_ostream &Out, ErrorHandler ErrHandler,
22 unsigned DocNum, uint64_t MaxSize) {
23 unsigned CurDocNum = 0;
24 do {
25 if (++CurDocNum != DocNum)
26 continue;
27
28 yaml::YamlObjectFile Doc;
29 YIn >> Doc;
30 if (std::error_code EC = YIn.error()) {
31 ErrHandler("failed to parse YAML input: " + EC.message());
32 return false;
33 }
34
35 if (Doc.Arch)
36 return yaml2archive(Doc&: *Doc.Arch, Out, EH: ErrHandler);
37 if (Doc.Elf)
38 return yaml2elf(Doc&: *Doc.Elf, Out, EH: ErrHandler, MaxSize);
39 if (Doc.Coff)
40 return yaml2coff(Doc&: *Doc.Coff, Out, EH: ErrHandler);
41 if (Doc.Goff)
42 return yaml2goff(Doc&: *Doc.Goff, Out, EH: ErrHandler);
43 if (Doc.MachO || Doc.FatMachO)
44 return yaml2macho(Doc, Out, EH: ErrHandler);
45 if (Doc.Minidump)
46 return yaml2minidump(Doc&: *Doc.Minidump, Out, EH: ErrHandler);
47 if (Doc.Offload)
48 return yaml2offload(Doc&: *Doc.Offload, Out, EH: ErrHandler);
49 if (Doc.Wasm)
50 return yaml2wasm(Doc&: *Doc.Wasm, Out, EH: ErrHandler);
51 if (Doc.Xcoff)
52 return yaml2xcoff(Doc&: *Doc.Xcoff, Out, EH: ErrHandler);
53 if (Doc.DXContainer)
54 return yaml2dxcontainer(Doc&: *Doc.DXContainer, Out, EH: ErrHandler);
55
56 ErrHandler("unknown document type");
57 return false;
58
59 } while (YIn.nextDocument());
60
61 ErrHandler("cannot find the " + Twine(DocNum) +
62 getOrdinalSuffix(Val: DocNum).data() + " document");
63 return false;
64}
65
66std::unique_ptr<object::ObjectFile>
67yaml2ObjectFile(SmallVectorImpl<char> &Storage, StringRef Yaml,
68 ErrorHandler ErrHandler) {
69 Storage.clear();
70 raw_svector_ostream OS(Storage);
71
72 yaml::Input YIn(Yaml);
73 if (!convertYAML(YIn, Out&: OS, ErrHandler))
74 return {};
75
76 Expected<std::unique_ptr<object::ObjectFile>> ObjOrErr =
77 object::ObjectFile::createObjectFile(
78 Object: MemoryBufferRef(OS.str(), "YamlObject"));
79 if (ObjOrErr)
80 return std::move(*ObjOrErr);
81
82 ErrHandler(toString(E: ObjOrErr.takeError()));
83 return {};
84}
85
86} // namespace yaml
87} // namespace llvm
88