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//===- lib/Driver/LinkerInvocation.cpp - Linker Invocation ----------------===//
//
// The LLVM Linker
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lld/Driver/LinkerInvocation.h"
#include "lld/Core/InputFiles.h"
#include "lld/Core/Resolver.h"
#include "lld/Driver/Target.h"
#include "llvm/Support/raw_ostream.h"
using namespace lld;
void LinkerInvocation::operator()() {
// Create target.
std::unique_ptr<Target> target(Target::create(_options));
if (!target) {
llvm::errs() << "Failed to create target for " << _options._target
<< "\n";
return;
}
// Read inputs
InputFiles inputs;
for (const auto &input : _options._input) {
auto reader = target->getReader(input);
if (error_code ec = reader) {
llvm::errs() << "Failed to get reader for: " << input.getPath() << ": "
<< ec.message() << "\n";
return;
}
auto buffer = input.getBuffer();
if (error_code ec = buffer) {
llvm::errs() << "Failed to read file: " << input.getPath() << ": "
<< ec.message() << "\n";
return;
}
std::vector<std::unique_ptr<File>> files;
if (llvm::error_code ec = reader->readFile(
buffer->getBufferIdentifier(), files)) {
llvm::errs() << "Failed to read file: " << input.getPath() << ": "
<< ec.message() << "\n";
return;
}
inputs.appendFiles(files);
}
ResolverOptions ro;
Resolver resolver(ro, inputs);
resolver.resolve();
File &merged = resolver.resultFile();
auto writer = target->getWriter();
if (error_code ec = writer) {
llvm::errs() << "Failed to get writer: " << ec.message() << ".\n";
return;
}
if (error_code ec = writer->writeFile(merged, _options._outputPath))
llvm::errs() << "Failed to write file: " << ec.message() << "\n";
}
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