d26c8e3463
This adds an API to the LinkingContext for flavors to add Internal files containing atoms that need to appear in the YAML output as well, when -emit-yaml switch is used. Flavors can add more internal files for other options that are needed. llvm-svn: 189718
91 lines
3.0 KiB
C++
91 lines
3.0 KiB
C++
//===- lib/Core/LinkingContext.cpp - Linker Context Object Interface ------===//
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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/Core/LinkingContext.h"
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#include "lld/Core/InputFiles.h"
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#include "lld/ReaderWriter/Writer.h"
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#include "lld/ReaderWriter/Simple.h"
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#include "llvm/ADT/Triple.h"
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namespace lld {
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LinkingContext::LinkingContext()
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: Reader(*this), _deadStrip(false), _globalsAreDeadStripRoots(false),
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_searchArchivesToOverrideTentativeDefinitions(false),
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_searchSharedLibrariesToOverrideTentativeDefinitions(false),
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_warnIfCoalesableAtomsHaveDifferentCanBeNull(false),
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_warnIfCoalesableAtomsHaveDifferentLoadName(false),
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_forceLoadAllArchives(false), _printRemainingUndefines(true),
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_allowRemainingUndefines(false), _logInputFiles(false),
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_allowShlibUndefines(false) {}
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LinkingContext::~LinkingContext() {}
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bool LinkingContext::validate(raw_ostream &diagnostics) {
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_yamlReader = createReaderYAML(*this);
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return validateImpl(diagnostics);
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}
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error_code
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LinkingContext::readFile(StringRef path,
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std::vector<std::unique_ptr<File>> &result) const {
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OwningPtr<llvm::MemoryBuffer> opmb;
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if (error_code ec = llvm::MemoryBuffer::getFileOrSTDIN(path, opmb))
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return ec;
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std::unique_ptr<MemoryBuffer> mb(opmb.take());
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return this->parseFile(mb, result);
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}
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error_code LinkingContext::writeFile(const File &linkedFile) const {
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return this->writer().writeFile(linkedFile, _outputPath);
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}
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void LinkingContext::addImplicitFiles(InputFiles &inputs) const {
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this->writer().addFiles(inputs);
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}
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std::unique_ptr<File> LinkingContext::createEntrySymbolFile() {
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if (entrySymbolName().empty())
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return nullptr;
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std::unique_ptr<SimpleFile> entryFile(
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new SimpleFile(*this, "command line option -entry"));
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entryFile->addAtom(
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*(new (_allocator) SimpleUndefinedAtom(*entryFile, entrySymbolName())));
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return std::move(entryFile);
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}
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std::unique_ptr<File> LinkingContext::createUndefinedSymbolFile() {
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if (_initialUndefinedSymbols.empty())
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return nullptr;
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std::unique_ptr<SimpleFile> undefinedSymFile(
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new SimpleFile(*this, "command line option -u"));
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for (auto undefSymStr : _initialUndefinedSymbols)
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undefinedSymFile->addAtom(*(new (_allocator) SimpleUndefinedAtom(
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*undefinedSymFile, undefSymStr)));
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return std::move(undefinedSymFile);
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}
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std::vector<std::unique_ptr<File> > LinkingContext::createInternalFiles() {
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std::vector<std::unique_ptr<File> > result;
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std::unique_ptr<File> internalFile;
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internalFile = createEntrySymbolFile();
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if (internalFile)
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result.push_back(std::move(internalFile));
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internalFile = createUndefinedSymbolFile();
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if (internalFile)
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result.push_back(std::move(internalFile));
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return result;
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}
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void LinkingContext::addPasses(PassManager &pm) const {}
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} // end namespace lld
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