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//===- lib/Core/LinkingContext.cpp - Linker Context Object Interface ------===//
//
// The LLVM Linker
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lld/Core/LinkingContext.h"
#include "lld/Core/File.h"
#include "lld/Core/Node.h"
#include "lld/Core/Simple.h"
#include "lld/Core/Writer.h"
#include <algorithm>
namespace lld {
LinkingContext::LinkingContext() = default;
LinkingContext::~LinkingContext() = default;
bool LinkingContext::validate(raw_ostream &diagnostics) {
return validateImpl(diagnostics);
}
llvm::Error LinkingContext::writeFile(const File &linkedFile) const {
return this->writer().writeFile(linkedFile, _outputPath);
}
std::unique_ptr<File> LinkingContext::createEntrySymbolFile() const {
return createEntrySymbolFile("<command line option -e>");
}
std::unique_ptr<File>
LinkingContext::createEntrySymbolFile(StringRef filename) const {
if (entrySymbolName().empty())
return nullptr;
std::unique_ptr<SimpleFile> entryFile(new SimpleFile(filename,
File::kindEntryObject));
entryFile->addAtom(
*(new (_allocator) SimpleUndefinedAtom(*entryFile, entrySymbolName())));
return std::move(entryFile);
}
std::unique_ptr<File> LinkingContext::createUndefinedSymbolFile() const {
return createUndefinedSymbolFile("<command line option -u or --defsym>");
}
std::unique_ptr<File>
LinkingContext::createUndefinedSymbolFile(StringRef filename) const {
if (_initialUndefinedSymbols.empty())
return nullptr;
std::unique_ptr<SimpleFile> undefinedSymFile(
new SimpleFile(filename, File::kindUndefinedSymsObject));
for (StringRef undefSym : _initialUndefinedSymbols)
undefinedSymFile->addAtom(*(new (_allocator) SimpleUndefinedAtom(
*undefinedSymFile, undefSym)));
return std::move(undefinedSymFile);
}
void LinkingContext::createInternalFiles(
std::vector<std::unique_ptr<File>> &result) const {
if (std::unique_ptr<File> file = createEntrySymbolFile())
result.push_back(std::move(file));
if (std::unique_ptr<File> file = createUndefinedSymbolFile())
result.push_back(std::move(file));
}
} // end namespace lld
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