9ff4be240a
This includes selecting which driver to emulate, option parsing, invocation building, and running the link. This currently only supports a very basic subset of ld for x86_64-linux. lld -flavor ld obj.o -o obj or symlink lld as (ld , link, ld64, core) to get the desired behavior without -flavor. llvm-svn: 169659
71 lines
2.1 KiB
C++
71 lines
2.1 KiB
C++
//===- lib/Driver/LinkerInvocation.cpp - Linker Invocation ----------------===//
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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/LinkerInvocation.h"
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#include "lld/Core/InputFiles.h"
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#include "lld/Core/Resolver.h"
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#include "lld/Driver/Target.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace lld;
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void LinkerInvocation::operator()() {
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// Create target.
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std::unique_ptr<Target> target(Target::create(_options));
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if (!target) {
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llvm::errs() << "Failed to create target for " << _options._target
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<< "\n";
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return;
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}
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// Read inputs
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InputFiles inputs;
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for (const auto &input : _options._input) {
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auto reader = target->getReader(input);
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if (error_code ec = reader) {
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llvm::errs() << "Failed to get reader for: " << input.getPath() << ": "
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<< ec.message() << "\n";
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return;
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}
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auto buffer = input.getBuffer();
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if (error_code ec = buffer) {
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llvm::errs() << "Failed to read file: " << input.getPath() << ": "
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<< ec.message() << "\n";
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return;
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}
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std::vector<std::unique_ptr<File>> files;
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if (llvm::error_code ec = reader->readFile(
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buffer->getBufferIdentifier(), files)) {
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llvm::errs() << "Failed to read file: " << input.getPath() << ": "
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<< ec.message() << "\n";
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return;
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}
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inputs.appendFiles(files);
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}
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ResolverOptions ro;
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Resolver resolver(ro, inputs);
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resolver.resolve();
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File &merged = resolver.resultFile();
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auto writer = target->getWriter();
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if (error_code ec = writer) {
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llvm::errs() << "Failed to get writer: " << ec.message() << ".\n";
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return;
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}
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if (error_code ec = writer->writeFile(merged, _options._outputPath))
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llvm::errs() << "Failed to write file: " << ec.message() << "\n";
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}
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