1 //===--- llvmc.cpp - The LLVM Compiler Driver -------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open
6 // Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This tool provides a single point of access to the LLVM
11 // compilation tools. It has many options. To discover the options
12 // supported please refer to the tools' manual page or run the tool
13 // with the --help option.
15 //===----------------------------------------------------------------------===//
17 #include "CompilationGraph.h"
21 #include "llvm/System/Path.h"
22 #include "llvm/Support/CommandLine.h"
28 namespace cl = llvm::cl;
29 namespace sys = llvm::sys;
30 using namespace llvmc;
32 // Built-in command-line options.
33 // External linkage here is intentional.
35 // TOFIX: Write a 'driver driver' (easier to do as a separate
36 // executable that drives llvmc2 proper).
37 cl::list<std::string> InputFilenames(cl::Positional, cl::desc("<input file>"),
39 cl::opt<std::string> OutputFilename("o", cl::desc("Output file name"),
40 cl::value_desc("file"));
41 cl::list<std::string> Languages("x",
42 cl::desc("Specify the language of the following input files"),
44 cl::opt<bool> DryRun("dry-run",
45 cl::desc("only pretend to run commands"));
46 cl::opt<bool> VerboseMode("v",
47 cl::desc("Enable verbose mode"));
48 cl::opt<bool> WriteGraph("write-graph",
49 cl::desc("Write compilation-graph.dot file"),
51 cl::opt<bool> ViewGraph("view-graph",
52 cl::desc("Show compilation graph in GhostView"),
54 cl::opt<bool> SaveTemps("save-temps",
55 cl::desc("Keep temporary files"),
59 /// BuildTargets - A small wrapper for CompilationGraph::Build.
60 int BuildTargets(CompilationGraph& graph) {
62 const sys::Path& tempDir = SaveTemps
64 : sys::Path(sys::Path::GetTemporaryDirectory());
67 ret = graph.Build(tempDir);
70 tempDir.eraseFromDisk(true);
75 tempDir.eraseFromDisk(true);
80 int main(int argc, char** argv) {
82 CompilationGraph graph;
84 cl::ParseCommandLineOptions
85 (argc, argv, "LLVM Compiler Driver (Work In Progress)", true);
86 PopulateCompilationGraph(graph);
99 if (InputFilenames.empty()) {
100 throw std::runtime_error("no input files");
103 return BuildTargets(graph);
105 catch(llvmc::error_code& ec) {
108 catch(const std::exception& ex) {
109 std::cerr << argv[0] << ": " << ex.what() << '\n';
112 std::cerr << argv[0] << ": unknown error!\n";