yaml2obj.cpp
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//===-- yaml2obj.cpp ------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "llvm/ObjectYAML/yaml2obj.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/Twine.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/ObjectYAML/ObjectYAML.h"
#include "llvm/Support/Errc.h"
#include "llvm/Support/WithColor.h"
#include "llvm/Support/YAMLTraits.h"
namespace llvm {
namespace yaml {
bool convertYAML(yaml::Input &YIn, raw_ostream &Out, ErrorHandler ErrHandler,
unsigned DocNum) {
unsigned CurDocNum = 0;
do {
if (++CurDocNum != DocNum)
continue;
yaml::YamlObjectFile Doc;
YIn >> Doc;
if (std::error_code EC = YIn.error()) {
ErrHandler("failed to parse YAML input: " + EC.message());
return false;
}
if (Doc.Elf)
return yaml2elf(*Doc.Elf, Out, ErrHandler);
if (Doc.Coff)
return yaml2coff(*Doc.Coff, Out, ErrHandler);
if (Doc.MachO || Doc.FatMachO)
return yaml2macho(Doc, Out, ErrHandler);
if (Doc.Minidump)
return yaml2minidump(*Doc.Minidump, Out, ErrHandler);
if (Doc.Wasm)
return yaml2wasm(*Doc.Wasm, Out, ErrHandler);
ErrHandler("unknown document type");
return false;
} while (YIn.nextDocument());
ErrHandler("cannot find the " + Twine(DocNum) +
getOrdinalSuffix(DocNum).data() + " document");
return false;
}
std::unique_ptr<object::ObjectFile>
yaml2ObjectFile(SmallVectorImpl<char> &Storage, StringRef Yaml,
ErrorHandler ErrHandler) {
Storage.clear();
raw_svector_ostream OS(Storage);
yaml::Input YIn(Yaml);
if (!convertYAML(YIn, OS, ErrHandler))
return {};
Expected<std::unique_ptr<object::ObjectFile>> ObjOrErr =
object::ObjectFile::createObjectFile(
MemoryBufferRef(OS.str(), "YamlObject"));
if (ObjOrErr)
return std::move(*ObjOrErr);
ErrHandler(toString(ObjOrErr.takeError()));
return {};
}
} // namespace yaml
} // namespace llvm