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Provide exception handling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17787 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer
parent
5e081fb74a
commit
4c1af902ad
@ -157,120 +157,134 @@ int main(int argc, char **argv, char **envp) {
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cl::ParseCommandLineOptions(argc, argv, " llvm linker for GCC\n");
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sys::PrintStackTraceOnErrorSignal();
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std::string ModuleID("gccld-output");
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std::auto_ptr<Module> Composite(new Module(ModuleID));
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int exitCode = 0;
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// We always look first in the current directory when searching for libraries.
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LibPaths.insert(LibPaths.begin(), ".");
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try {
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std::string ModuleID("gccld-output");
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std::auto_ptr<Module> Composite(new Module(ModuleID));
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// If the user specified an extra search path in their environment, respect
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// it.
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if (char *SearchPath = getenv("LLVM_LIB_SEARCH_PATH"))
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LibPaths.push_back(SearchPath);
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// We always look first in the current directory when searching for libraries.
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LibPaths.insert(LibPaths.begin(), ".");
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// Remove any consecutive duplicates of the same library...
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Libraries.erase(std::unique(Libraries.begin(), Libraries.end()),
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Libraries.end());
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// If the user specified an extra search path in their environment, respect
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// it.
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if (char *SearchPath = getenv("LLVM_LIB_SEARCH_PATH"))
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LibPaths.push_back(SearchPath);
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// Link in all of the files
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if (LinkFiles(argv[0], Composite.get(), InputFilenames, Verbose))
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return 1; // Error already printed
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// Remove any consecutive duplicates of the same library...
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Libraries.erase(std::unique(Libraries.begin(), Libraries.end()),
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Libraries.end());
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if (!LinkAsLibrary)
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LinkLibraries(argv[0], Composite.get(), Libraries, LibPaths,
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Verbose, Native);
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// Link in all of the files
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if (LinkFiles(argv[0], Composite.get(), InputFilenames, Verbose))
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return 1; // Error already printed
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// Link in all of the libraries next...
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if (!LinkAsLibrary)
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LinkLibraries(argv[0], Composite.get(), Libraries, LibPaths,
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Verbose, Native);
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// Create the output file.
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std::string RealBytecodeOutput = OutputFilename;
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if (!LinkAsLibrary) RealBytecodeOutput += ".bc";
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std::ofstream Out(RealBytecodeOutput.c_str());
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if (!Out.good())
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return PrintAndReturn(argv[0], "error opening '" + RealBytecodeOutput +
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"' for writing!");
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// Link in all of the libraries next...
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// Ensure that the bytecode file gets removed from the disk if we get a
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// SIGINT signal.
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sys::RemoveFileOnSignal(RealBytecodeOutput);
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// Create the output file.
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std::string RealBytecodeOutput = OutputFilename;
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if (!LinkAsLibrary) RealBytecodeOutput += ".bc";
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std::ofstream Out(RealBytecodeOutput.c_str());
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if (!Out.good())
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return PrintAndReturn(argv[0], "error opening '" + RealBytecodeOutput +
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"' for writing!");
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// Generate the bytecode file.
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if (GenerateBytecode(Composite.get(), Strip, !NoInternalize, &Out)) {
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Out.close();
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return PrintAndReturn(argv[0], "error generating bytecode");
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}
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// Ensure that the bytecode file gets removed from the disk if we get a
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// SIGINT signal.
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sys::RemoveFileOnSignal(sys::Path(RealBytecodeOutput));
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// Close the bytecode file.
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Out.close();
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// If we are not linking a library, generate either a native executable
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// or a JIT shell script, depending upon what the user wants.
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if (!LinkAsLibrary) {
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// If the user wants to generate a native executable, compile it from the
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// bytecode file.
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//
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// Otherwise, create a script that will run the bytecode through the JIT.
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if (Native) {
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// Name of the Assembly Language output file
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std::string AssemblyFile = OutputFilename + ".s";
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// Mark the output files for removal if we get an interrupt.
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sys::RemoveFileOnSignal(AssemblyFile);
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sys::RemoveFileOnSignal(OutputFilename);
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// Determine the locations of the llc and gcc programs.
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std::string llc = FindExecutable("llc", argv[0]);
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std::string gcc = FindExecutable("gcc", argv[0]);
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if (llc.empty())
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return PrintAndReturn(argv[0], "Failed to find llc");
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if (gcc.empty())
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return PrintAndReturn(argv[0], "Failed to find gcc");
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// Generate an assembly language file for the bytecode.
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if (Verbose) std::cout << "Generating Assembly Code\n";
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GenerateAssembly(AssemblyFile, RealBytecodeOutput, llc, envp);
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if (Verbose) std::cout << "Generating Native Code\n";
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GenerateNative(OutputFilename, AssemblyFile, Libraries, LibPaths,
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gcc, envp);
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// Remove the assembly language file.
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removeFile (AssemblyFile);
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} else if (NativeCBE) {
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std::string CFile = OutputFilename + ".cbe.c";
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// Mark the output files for removal if we get an interrupt.
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sys::RemoveFileOnSignal(CFile);
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sys::RemoveFileOnSignal(OutputFilename);
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// Determine the locations of the llc and gcc programs.
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std::string llc = FindExecutable("llc", argv[0]);
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std::string gcc = FindExecutable("gcc", argv[0]);
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if (llc.empty())
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return PrintAndReturn(argv[0], "Failed to find llc");
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if (gcc.empty())
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return PrintAndReturn(argv[0], "Failed to find gcc");
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// Generate an assembly language file for the bytecode.
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if (Verbose) std::cout << "Generating Assembly Code\n";
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GenerateCFile(CFile, RealBytecodeOutput, llc, envp);
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if (Verbose) std::cout << "Generating Native Code\n";
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GenerateNative(OutputFilename, CFile, Libraries, LibPaths, gcc, envp);
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// Remove the assembly language file.
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removeFile(CFile);
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} else {
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EmitShellScript(argv);
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// Generate the bytecode file.
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if (GenerateBytecode(Composite.get(), Strip, !NoInternalize, &Out)) {
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Out.close();
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return PrintAndReturn(argv[0], "error generating bytecode");
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}
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// Make the script executable...
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MakeFileExecutable(OutputFilename);
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// Make the bytecode file readable and directly executable in LLEE as well
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MakeFileExecutable(RealBytecodeOutput);
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MakeFileReadable(RealBytecodeOutput);
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// Close the bytecode file.
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Out.close();
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// If we are not linking a library, generate either a native executable
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// or a JIT shell script, depending upon what the user wants.
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if (!LinkAsLibrary) {
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// If the user wants to generate a native executable, compile it from the
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// bytecode file.
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//
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// Otherwise, create a script that will run the bytecode through the JIT.
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if (Native) {
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// Name of the Assembly Language output file
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std::string AssemblyFile = OutputFilename + ".s";
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// Mark the output files for removal if we get an interrupt.
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sys::RemoveFileOnSignal(sys::Path(AssemblyFile));
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sys::RemoveFileOnSignal(sys::Path(OutputFilename));
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// Determine the locations of the llc and gcc programs.
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std::string llc = FindExecutable("llc", argv[0]);
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std::string gcc = FindExecutable("gcc", argv[0]);
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if (llc.empty())
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return PrintAndReturn(argv[0], "Failed to find llc");
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if (gcc.empty())
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return PrintAndReturn(argv[0], "Failed to find gcc");
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// Generate an assembly language file for the bytecode.
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if (Verbose) std::cout << "Generating Assembly Code\n";
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GenerateAssembly(AssemblyFile, RealBytecodeOutput, llc, envp);
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if (Verbose) std::cout << "Generating Native Code\n";
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GenerateNative(OutputFilename, AssemblyFile, Libraries, LibPaths,
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gcc, envp);
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// Remove the assembly language file.
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removeFile (AssemblyFile);
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} else if (NativeCBE) {
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std::string CFile = OutputFilename + ".cbe.c";
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// Mark the output files for removal if we get an interrupt.
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sys::RemoveFileOnSignal(sys::Path(CFile));
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sys::RemoveFileOnSignal(sys::Path(OutputFilename));
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// Determine the locations of the llc and gcc programs.
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std::string llc = FindExecutable("llc", argv[0]);
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std::string gcc = FindExecutable("gcc", argv[0]);
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if (llc.empty())
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return PrintAndReturn(argv[0], "Failed to find llc");
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if (gcc.empty())
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return PrintAndReturn(argv[0], "Failed to find gcc");
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// Generate an assembly language file for the bytecode.
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if (Verbose) std::cout << "Generating Assembly Code\n";
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GenerateCFile(CFile, RealBytecodeOutput, llc, envp);
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if (Verbose) std::cout << "Generating Native Code\n";
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GenerateNative(OutputFilename, CFile, Libraries, LibPaths, gcc, envp);
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// Remove the assembly language file.
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removeFile(CFile);
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} else {
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EmitShellScript(argv);
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}
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// Make the script executable...
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MakeFileExecutable(OutputFilename);
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// Make the bytecode file readable and directly executable in LLEE as well
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MakeFileExecutable(RealBytecodeOutput);
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MakeFileReadable(RealBytecodeOutput);
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}
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} catch (const char*msg) {
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std::cerr << argv[0] << ": " << msg << "\n";
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exitCode = 1;
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} catch (const std::string& msg) {
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std::cerr << argv[0] << ": " << msg << "\n";
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exitCode = 2;
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} catch (...) {
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// This really shouldn't happen, but just in case ....
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std::cerr << argv[0] << ": An nexpected unknown exception occurred.\n";
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exitCode = 3;
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}
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return 0;
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return exitCode;
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}
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