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5ef47e6205
This teaches obj2yaml to dump valid regular (not thin) archives. This also teaches yaml2obj to recognize archives YAML descriptions, what allows to craft all different kinds of archives (valid and broken ones). Differential revision: https://reviews.llvm.org/D89949
80 lines
2.3 KiB
C++
80 lines
2.3 KiB
C++
//===-- yaml2obj.cpp ------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ObjectYAML/yaml2obj.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/ADT/Twine.h"
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#include "llvm/Object/ObjectFile.h"
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#include "llvm/ObjectYAML/ObjectYAML.h"
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#include "llvm/Support/Errc.h"
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#include "llvm/Support/WithColor.h"
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#include "llvm/Support/YAMLTraits.h"
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namespace llvm {
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namespace yaml {
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bool convertYAML(yaml::Input &YIn, raw_ostream &Out, ErrorHandler ErrHandler,
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unsigned DocNum, uint64_t MaxSize) {
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unsigned CurDocNum = 0;
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do {
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if (++CurDocNum != DocNum)
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continue;
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yaml::YamlObjectFile Doc;
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YIn >> Doc;
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if (std::error_code EC = YIn.error()) {
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ErrHandler("failed to parse YAML input: " + EC.message());
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return false;
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}
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if (Doc.Arch)
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return yaml2archive(*Doc.Arch, Out, ErrHandler);
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if (Doc.Elf)
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return yaml2elf(*Doc.Elf, Out, ErrHandler, MaxSize);
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if (Doc.Coff)
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return yaml2coff(*Doc.Coff, Out, ErrHandler);
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if (Doc.MachO || Doc.FatMachO)
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return yaml2macho(Doc, Out, ErrHandler);
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if (Doc.Minidump)
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return yaml2minidump(*Doc.Minidump, Out, ErrHandler);
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if (Doc.Wasm)
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return yaml2wasm(*Doc.Wasm, Out, ErrHandler);
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ErrHandler("unknown document type");
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return false;
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} while (YIn.nextDocument());
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ErrHandler("cannot find the " + Twine(DocNum) +
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getOrdinalSuffix(DocNum).data() + " document");
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return false;
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}
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std::unique_ptr<object::ObjectFile>
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yaml2ObjectFile(SmallVectorImpl<char> &Storage, StringRef Yaml,
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ErrorHandler ErrHandler) {
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Storage.clear();
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raw_svector_ostream OS(Storage);
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yaml::Input YIn(Yaml);
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if (!convertYAML(YIn, OS, ErrHandler))
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return {};
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Expected<std::unique_ptr<object::ObjectFile>> ObjOrErr =
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object::ObjectFile::createObjectFile(
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MemoryBufferRef(OS.str(), "YamlObject"));
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if (ObjOrErr)
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return std::move(*ObjOrErr);
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ErrHandler(toString(ObjOrErr.takeError()));
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return {};
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}
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} // namespace yaml
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} // namespace llvm
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