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//===--- llvmc.cpp - The LLVM Compiler Driver -------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open
// Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This tool provides a single point of access to the LLVM
// compilation tools. It has many options. To discover the options
// supported please refer to the tools' manual page or run the tool
// with the --help option.
//
//===----------------------------------------------------------------------===//
#include "CompilationGraph.h"
#include "Error.h"
#include "Tool.h"
#include "llvm/System/Path.h"
#include "llvm/Support/CommandLine.h"
#include <iostream>
#include <stdexcept>
#include <string>
namespace cl = llvm::cl;
namespace sys = llvm::sys;
using namespace llvmc;
// Built-in command-line options.
// External linkage here is intentional.
cl::list<std::string> InputFilenames(cl::Positional, cl::desc("<input file>"),
cl::ZeroOrMore);
cl::opt<std::string> OutputFilename("o", cl::desc("Output file name"),
cl::value_desc("file"));
cl::list<std::string> Languages("x",
cl::desc("Specify the language of the following input files"),
cl::ZeroOrMore);
cl::opt<bool> VerboseMode("v",
cl::desc("Enable verbose mode"));
cl::opt<bool> WriteGraph("write-graph",
cl::desc("Write compilation-graph.dot file"),
cl::Hidden);
cl::opt<bool> ViewGraph("view-graph",
cl::desc("Show compilation graph in GhostView"),
cl::Hidden);
namespace {
/// BuildTargets - A small wrapper for CompilationGraph::Build.
int BuildTargets(CompilationGraph& graph) {
int ret;
sys::Path tempDir(sys::Path::GetTemporaryDirectory());
try {
ret = graph.Build(tempDir);
}
catch(...) {
tempDir.eraseFromDisk(true);
throw;
}
tempDir.eraseFromDisk(true);
return ret;
}
}
int main(int argc, char** argv) {
try {
CompilationGraph graph;
cl::ParseCommandLineOptions
(argc, argv, "LLVM Compiler Driver (Work In Progress)", true);
PopulateCompilationGraph(graph);
if (WriteGraph) {
graph.writeGraph();
if (!ViewGraph)
return 0;
}
if (ViewGraph) {
graph.viewGraph();
return 0;
}
if (InputFilenames.empty()) {
throw std::runtime_error("no input files");
}
return BuildTargets(graph);
}
catch(llvmc::error_code& ec) {
return ec.code();
}
catch(const std::exception& ex) {
std::cerr << argv[0] << ": " << ex.what() << '\n';
}
catch(...) {
std::cerr << argv[0] << ": unknown error!\n";
}
return 1;
}
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