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