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Move the driver entry point out of Main.inc.

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llvm-svn: 74482
This commit is contained in:
Mikhail Glushenkov 2009-06-30 00:15:24 +00:00
parent 72c0434597
commit 6e8fe4b75c
2 changed files with 131 additions and 105 deletions
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111
include/llvm/CompilerDriver/Main.inc
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@ -12,121 +12,22 @@
// supported please refer to the tools' manual page or run the tool
// with the --help option.
//
// This file provides the default entry point for the driver executable.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_INCLUDE_COMPILER_DRIVER_MAIN_INC
#define LLVM_INCLUDE_COMPILER_DRIVER_MAIN_INC
#include "llvm/CompilerDriver/BuiltinOptions.h"
#include "llvm/CompilerDriver/CompilationGraph.h"
#include "llvm/CompilerDriver/Error.h"
#include "llvm/CompilerDriver/ForceLinkage.h"
#include "llvm/CompilerDriver/Plugin.h"
#include "llvm/System/Path.h"
#include <iostream>
#include <stdexcept>
#include <string>
namespace cl = llvm::cl;
namespace sys = llvm::sys;
using namespace llvmc;
namespace {
sys::Path getTempDir() {
sys::Path tempDir;
// GCC 4.5-style -save-temps handling.
if (SaveTemps == SaveTempsEnum::Unset) {
tempDir = sys::Path::GetTemporaryDirectory();
}
else if (SaveTemps == SaveTempsEnum::Obj && !OutputFilename.empty()) {
tempDir = OutputFilename;
if (!tempDir.exists()) {
std::string ErrMsg;
if (tempDir.createDirectoryOnDisk(true, &ErrMsg))
throw std::runtime_error(ErrMsg);
}
}
// else if (SaveTemps == Cwd) -> use current dir (leave tempDir empty)
return tempDir;
}
/// BuildTargets - A small wrapper for CompilationGraph::Build.
int BuildTargets(CompilationGraph& graph, const LanguageMap& langMap) {
int ret;
const sys::Path& tempDir = getTempDir();
try {
ret = graph.Build(tempDir, langMap);
}
catch(...) {
if (SaveTemps == SaveTempsEnum::Unset)
tempDir.eraseFromDisk(true);
throw;
}
if (SaveTemps == SaveTempsEnum::Unset)
tempDir.eraseFromDisk(true);
return ret;
}
namespace llvmc {
int Main(int argc, char** argv);
}
int main(int argc, char** argv) {
try {
ForceLinkage();
LanguageMap langMap;
CompilationGraph graph;
cl::ParseCommandLineOptions
(argc, argv, "LLVM Compiler Driver (Work In Progress)", true);
PluginLoader Plugins;
Plugins.PopulateLanguageMap(langMap);
Plugins.PopulateCompilationGraph(graph);
if (CheckGraph) {
int ret = graph.Check();
if (!ret)
std::cerr << "check-graph: no errors found.\n";
return ret;
}
if (ViewGraph) {
graph.viewGraph();
if (!WriteGraph)
return 0;
}
if (WriteGraph) {
graph.writeGraph(OutputFilename.empty()
? std::string("compilation-graph.dot")
: OutputFilename);
return 0;
}
if (InputFilenames.empty()) {
throw std::runtime_error("no input files");
}
return BuildTargets(graph, langMap);
}
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;
llvmc::ForceLinkage();
return llvmc::Main(argc, argv);
}
#endif // LLVM_INCLUDE_COMPILER_DRIVER_MAIN_INC

125
lib/CompilerDriver/Main.cpp Normal file
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@ -0,0 +1,125 @@
//===--- Main.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.
//
//===----------------------------------------------------------------------===//
//
// llvmc::Main function - driver entry point.
//
//===----------------------------------------------------------------------===//
#include "llvm/CompilerDriver/BuiltinOptions.h"
#include "llvm/CompilerDriver/CompilationGraph.h"
#include "llvm/CompilerDriver/Error.h"
#include "llvm/CompilerDriver/Plugin.h"
#include "llvm/System/Path.h"
#include <iostream>
#include <stdexcept>
#include <string>
namespace cl = llvm::cl;
namespace sys = llvm::sys;
using namespace llvmc;
namespace {
sys::Path getTempDir() {
sys::Path tempDir;
// GCC 4.5-style -save-temps handling.
if (SaveTemps == SaveTempsEnum::Unset) {
tempDir = sys::Path::GetTemporaryDirectory();
}
else if (SaveTemps == SaveTempsEnum::Obj && !OutputFilename.empty()) {
tempDir = OutputFilename;
if (!tempDir.exists()) {
std::string ErrMsg;
if (tempDir.createDirectoryOnDisk(true, &ErrMsg))
throw std::runtime_error(ErrMsg);
}
}
// else if (SaveTemps == Cwd) -> use current dir (leave tempDir empty)
return tempDir;
}
/// BuildTargets - A small wrapper for CompilationGraph::Build.
int BuildTargets(CompilationGraph& graph, const LanguageMap& langMap) {
int ret;
const sys::Path& tempDir = getTempDir();
try {
ret = graph.Build(tempDir, langMap);
}
catch(...) {
if (SaveTemps == SaveTempsEnum::Unset)
tempDir.eraseFromDisk(true);
throw;
}
if (SaveTemps == SaveTempsEnum::Unset)
tempDir.eraseFromDisk(true);
return ret;
}
}
namespace llvmc {
int Main(int argc, char** argv) {
try {
LanguageMap langMap;
CompilationGraph graph;
cl::ParseCommandLineOptions
(argc, argv, "LLVM Compiler Driver (Work In Progress)", true);
PluginLoader Plugins;
Plugins.PopulateLanguageMap(langMap);
Plugins.PopulateCompilationGraph(graph);
if (CheckGraph) {
int ret = graph.Check();
if (!ret)
std::cerr << "check-graph: no errors found.\n";
return ret;
}
if (ViewGraph) {
graph.viewGraph();
if (!WriteGraph)
return 0;
}
if (WriteGraph) {
graph.writeGraph(OutputFilename.empty()
? std::string("compilation-graph.dot")
: OutputFilename);
return 0;
}
if (InputFilenames.empty()) {
throw std::runtime_error("no input files");
}
return BuildTargets(graph, langMap);
}
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;
}
} // end namespace llvmc