1 //===--- Main.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 "llvm/CompilerDriver/CompilationGraph.h"
18 #include "llvm/CompilerDriver/Error.h"
19 #include "llvm/CompilerDriver/Plugin.h"
21 #include "llvm/System/Path.h"
22 #include "llvm/Support/CommandLine.h"
23 #include "llvm/Support/PluginLoader.h"
29 namespace cl = llvm::cl;
30 namespace sys = llvm::sys;
31 using namespace llvmc;
33 // Built-in command-line options.
34 // External linkage here is intentional.
36 cl::list<std::string> InputFilenames(cl::Positional, cl::desc("<input file>"),
38 cl::opt<std::string> OutputFilename("o", cl::desc("Output file name"),
39 cl::value_desc("file"), cl::Prefix);
40 cl::list<std::string> Languages("x",
41 cl::desc("Specify the language of the following input files"),
43 cl::opt<bool> DryRun("dry-run",
44 cl::desc("Only pretend to run commands"));
45 cl::opt<bool> VerboseMode("v",
46 cl::desc("Enable verbose mode"));
48 cl::opt<bool> CheckGraph("check-graph",
49 cl::desc("Check the compilation graph for errors"),
51 cl::opt<bool> WriteGraph("write-graph",
52 cl::desc("Write compilation-graph.dot file"),
54 cl::opt<bool> ViewGraph("view-graph",
55 cl::desc("Show compilation graph in GhostView"),
57 cl::opt<bool> SaveTemps("save-temps",
58 cl::desc("Keep temporary files"),
62 /// BuildTargets - A small wrapper for CompilationGraph::Build.
63 int BuildTargets(CompilationGraph& graph, const LanguageMap& langMap) {
65 const sys::Path& tempDir = SaveTemps
67 : sys::Path(sys::Path::GetTemporaryDirectory());
70 ret = graph.Build(tempDir, langMap);
73 tempDir.eraseFromDisk(true);
78 tempDir.eraseFromDisk(true);
83 int main(int argc, char** argv) {
86 CompilationGraph graph;
88 cl::ParseCommandLineOptions
89 (argc, argv, "LLVM Compiler Driver (Work In Progress)", true);
92 Plugins.PopulateLanguageMap(langMap);
93 Plugins.PopulateCompilationGraph(graph);
110 if (InputFilenames.empty()) {
111 throw std::runtime_error("no input files");
114 return BuildTargets(graph, langMap);
116 catch(llvmc::error_code& ec) {
119 catch(const std::exception& ex) {
120 std::cerr << argv[0] << ": " << ex.what() << '\n';
123 std::cerr << argv[0] << ": unknown error!\n";