forked from OSchip/llvm-project
69 lines
2.0 KiB
C++
69 lines
2.0 KiB
C++
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//===- lib/Driver/WinLinkDriver.cpp ---------------------------------------===//
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//
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// The LLVM Linker
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lld/Driver/WinLinkInputGraph.h"
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namespace lld {
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/// \brief Parse the input file to lld::File.
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error_code PECOFFFileNode::parse(const LinkingContext &ctx,
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raw_ostream &diagnostics) {
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ErrorOr<StringRef> filePath = getPath(ctx);
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if (!filePath)
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return error_code(filePath);
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if (error_code ec = getBuffer(*filePath))
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return ec;
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if (ctx.logInputFiles())
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diagnostics << *filePath << "\n";
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if (filePath->endswith(".objtxt"))
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return ctx.getYAMLReader().parseFile(_buffer, _files);
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llvm::sys::fs::file_magic FileType =
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llvm::sys::fs::identify_magic(_buffer->getBuffer());
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std::unique_ptr<File> f;
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switch (FileType) {
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case llvm::sys::fs::file_magic::archive: {
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// Archive File
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error_code ec;
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f.reset(new FileArchive(ctx, std::move(_buffer), ec, false));
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_files.push_back(std::move(f));
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return ec;
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}
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case llvm::sys::fs::file_magic::coff_object:
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default:
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return _ctx.getDefaultReader().parseFile(_buffer, _files);
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}
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}
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ErrorOr<File &> PECOFFFileNode::getNextFile() {
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if (_nextFileIndex == _files.size())
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return make_error_code(InputGraphError::no_more_files);
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return *_files[_nextFileIndex++];
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}
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ErrorOr<StringRef> PECOFFFileNode::getPath(const LinkingContext &) const {
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if (_path.endswith_lower(".lib"))
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return _ctx.searchLibraryFile(_path);
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if (llvm::sys::path::extension(_path).empty())
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return _ctx.allocateString(_path.str() + ".obj");
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return _path;
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}
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ErrorOr<StringRef> PECOFFLibraryNode::getPath(const LinkingContext &) const {
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if (!_path.endswith_lower(".lib"))
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return _ctx.searchLibraryFile(_ctx.allocateString(_path.str() + ".lib"));
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return _ctx.searchLibraryFile(_path);
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}
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} // end anonymous namespace
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