X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=tools%2Fllvm-ld%2Fllvm-ld.cpp;h=d461fef8fec9c5697eb4599195954d960eb52826;hb=081c34b725980f995be9080eaec24cd3dfaaf065;hp=e71aefc0ce78104e0b230dcf334006aa97cc4348;hpb=316e3268a8ba371b92ec57952a4c1ee1ef6ae5ce;p=oota-llvm.git diff --git a/tools/llvm-ld/llvm-ld.cpp b/tools/llvm-ld/llvm-ld.cpp index e71aefc0ce7..d461fef8fec 100644 --- a/tools/llvm-ld/llvm-ld.cpp +++ b/tools/llvm-ld/llvm-ld.cpp @@ -35,7 +35,7 @@ #include "llvm/Support/MemoryBuffer.h" #include "llvm/Support/PrettyStackTrace.h" #include "llvm/Support/SystemUtils.h" -#include "llvm/Support/raw_ostream.h" +#include "llvm/Support/ToolOutputFile.h" #include "llvm/System/Signals.h" #include "llvm/Config/config.h" #include @@ -125,13 +125,18 @@ static cl::opt CO9("m", cl::Hidden, /// everywhere. static std::string progname; +/// FileRemover objects to clean up output files in the event of an error. +static FileRemover OutputRemover; +static FileRemover BitcodeOutputRemover; + /// PrintAndExit - Prints a message to standard error and exits with error code /// /// Inputs: /// Message - The message to print to standard error. /// -static void PrintAndExit(const std::string &Message, int errcode = 1) { +static void PrintAndExit(const std::string &Message, Module *M, int errcode = 1) { errs() << progname << ": " << Message << "\n"; + delete M; llvm_shutdown(); exit(errcode); } @@ -140,8 +145,8 @@ static void PrintCommand(const std::vector &args) { std::vector::const_iterator I = args.begin(), E = args.end(); for (; I != E; ++I) if (*I) - outs() << "'" << *I << "'" << " "; - outs() << "\n"; outs().flush(); + errs() << "'" << *I << "'" << " "; + errs() << "\n"; } /// CopyEnv - This function takes an array of environment variables and makes a @@ -179,8 +184,9 @@ static char ** CopyEnv(char ** const envp) { // Make a copy of the list. Don't forget the NULL that ends the list. entries = 0; while (envp[entries] != NULL) { - newenv[entries] = new char[strlen (envp[entries]) + 1]; - strcpy (newenv[entries], envp[entries]); + size_t len = strlen(envp[entries]) + 1; + newenv[entries] = new char[len]; + memcpy(newenv[entries], envp[entries], len); ++entries; } newenv[entries] = NULL; @@ -226,24 +232,20 @@ static void RemoveEnv(const char * name, char ** const envp) { void GenerateBitcode(Module* M, const std::string& FileName) { if (Verbose) - outs() << "Generating Bitcode To " << FileName << '\n'; + errs() << "Generating Bitcode To " << FileName << '\n'; // Create the output file. std::string ErrorInfo; - raw_fd_ostream Out(FileName.c_str(), ErrorInfo, - raw_fd_ostream::F_Binary); - if (!ErrorInfo.empty()) - PrintAndExit(ErrorInfo); - - // Ensure that the bitcode file gets removed from the disk if we get a - // terminating signal. - sys::RemoveFileOnSignal(sys::Path(FileName)); + tool_output_file Out(FileName.c_str(), ErrorInfo, + raw_fd_ostream::F_Binary); + if (!ErrorInfo.empty()) { + PrintAndExit(ErrorInfo, M); + return; + } // Write it out - WriteBitcodeToFile(M, Out); - - // Close the bitcode file. - Out.close(); + WriteBitcodeToFile(M, Out.os()); + Out.keep(); } /// GenerateAssembly - generates a native assembly language source file from the @@ -267,14 +269,13 @@ static int GenerateAssembly(const std::string &OutputFilename, // We will use GCC to assemble the program so set the assembly syntax to AT&T, // regardless of what the target in the bitcode file is. args.push_back("-x86-asm-syntax=att"); - args.push_back("-f"); args.push_back("-o"); args.push_back(OutputFilename.c_str()); args.push_back(InputFilename.c_str()); args.push_back(0); if (Verbose) { - outs() << "Generating Assembly With: \n"; + errs() << "Generating Assembly With: \n"; PrintCommand(args); } @@ -290,14 +291,13 @@ static int GenerateCFile(const std::string &OutputFile, std::vector args; args.push_back(llc.c_str()); args.push_back("-march=c"); - args.push_back("-f"); args.push_back("-o"); args.push_back(OutputFile.c_str()); args.push_back(InputFile.c_str()); args.push_back(0); if (Verbose) { - outs() << "Generating C Source With: \n"; + errs() << "Generating C Source With: \n"; PrintCommand(args); } @@ -394,22 +394,22 @@ static int GenerateNative(const std::string &OutputFilename, Args.push_back(0); if (Verbose) { - outs() << "Generating Native Executable With:\n"; + errs() << "Generating Native Executable With:\n"; PrintCommand(Args); } // Run the compiler to assembly and link together the program. int R = sys::Program::ExecuteAndWait( - gcc, &Args[0], (const char**)clean_env, 0, 0, 0, &ErrMsg); + gcc, &Args[0], const_cast(clean_env), 0, 0, 0, &ErrMsg); delete [] clean_env; return R; } /// EmitShellScript - Output the wrapper file that invokes the JIT on the LLVM /// bitcode file for the program. -static void EmitShellScript(char **argv) { +static void EmitShellScript(char **argv, Module *M) { if (Verbose) - outs() << "Emitting Shell Script\n"; + errs() << "Emitting Shell Script\n"; #if defined(_WIN32) || defined(__CYGWIN__) // Windows doesn't support #!/bin/sh style shell scripts in .exe files. To // support windows systems, we copy the llvm-stub.exe executable from the @@ -418,24 +418,24 @@ static void EmitShellScript(char **argv) { sys::Path llvmstub = FindExecutable("llvm-stub.exe", argv[0], (void *)(intptr_t)&Optimize); if (llvmstub.isEmpty()) - PrintAndExit("Could not find llvm-stub.exe executable!"); + PrintAndExit("Could not find llvm-stub.exe executable!", M); if (0 != sys::CopyFile(sys::Path(OutputFilename), llvmstub, &ErrMsg)) - PrintAndExit(ErrMsg); + PrintAndExit(ErrMsg, M); return; #endif // Output the script to start the program... std::string ErrorInfo; - raw_fd_ostream Out2(OutputFilename.c_str(), ErrorInfo); + tool_output_file Out2(OutputFilename.c_str(), ErrorInfo); if (!ErrorInfo.empty()) - PrintAndExit(ErrorInfo); + PrintAndExit(ErrorInfo, M); - Out2 << "#!/bin/sh\n"; + Out2.os() << "#!/bin/sh\n"; // Allow user to setenv LLVMINTERP if lli is not in their PATH. - Out2 << "lli=${LLVMINTERP-lli}\n"; - Out2 << "exec $lli \\\n"; + Out2.os() << "lli=${LLVMINTERP-lli}\n"; + Out2.os() << "exec $lli \\\n"; // gcc accepts -l and implicitly searches /lib and /usr/lib. LibPaths.push_back("/lib"); LibPaths.push_back("/usr/lib"); @@ -466,10 +466,10 @@ static void EmitShellScript(char **argv) { if (FullLibraryPath.isEmpty()) FullLibraryPath = sys::Path::FindLibrary(*i); if (!FullLibraryPath.isEmpty()) - Out2 << " -load=" << FullLibraryPath.str() << " \\\n"; + Out2.os() << " -load=" << FullLibraryPath.str() << " \\\n"; } - Out2 << " " << BitcodeOutputFilename << " ${1+\"$@\"}\n"; - Out2.close(); + Out2.os() << " " << BitcodeOutputFilename << " ${1+\"$@\"}\n"; + Out2.keep(); } // BuildLinkItems -- This function generates a LinkItemList for the LinkItems @@ -514,12 +514,56 @@ int main(int argc, char **argv, char **envp) { LLVMContext &Context = getGlobalContext(); llvm_shutdown_obj Y; // Call llvm_shutdown() on exit. + // Initialize passes + PassRegistry &Registry = *PassRegistry::getPassRegistry(); + initializeCore(Registry); + initializeScalarOpts(Registry); + initializeIPO(Registry); + initializeAnalysis(Registry); + initializeIPA(Registry); + initializeTransformUtils(Registry); + initializeInstCombine(Registry); + initializeTarget(Registry); + // Initial global variable above for convenience printing of program name. progname = sys::Path(argv[0]).getBasename(); // Parse the command line options cl::ParseCommandLineOptions(argc, argv, "llvm linker\n"); +#if defined(_WIN32) || defined(__CYGWIN__) + if (!LinkAsLibrary) { + // Default to "a.exe" instead of "a.out". + if (OutputFilename.getNumOccurrences() == 0) + OutputFilename = "a.exe"; + + // If there is no suffix add an "exe" one. + sys::Path ExeFile( OutputFilename ); + if (ExeFile.getSuffix() == "") { + ExeFile.appendSuffix("exe"); + OutputFilename = ExeFile.str(); + } + } +#endif + + // Generate the bitcode for the optimized module. + // If -b wasn't specified, use the name specified + // with -o to construct BitcodeOutputFilename. + if (BitcodeOutputFilename.empty()) { + BitcodeOutputFilename = OutputFilename; + if (!LinkAsLibrary) BitcodeOutputFilename += ".bc"; + } + + // Arrange for the bitcode output file to be deleted on any errors. + BitcodeOutputRemover.setFile(sys::Path(BitcodeOutputFilename)); + sys::RemoveFileOnSignal(sys::Path(BitcodeOutputFilename)); + + // Arrange for the output file to be deleted on any errors. + if (!LinkAsLibrary) { + OutputRemover.setFile(sys::Path(OutputFilename)); + sys::RemoveFileOnSignal(sys::Path(OutputFilename)); + } + // Construct a Linker (now that Verbose is set) Linker TheLinker(progname, OutputFilename, Context, Verbose); @@ -562,29 +606,7 @@ int main(int argc, char **argv, char **envp) { // Optimize the module Optimize(Composite.get()); -#if defined(_WIN32) || defined(__CYGWIN__) - if (!LinkAsLibrary) { - // Default to "a.exe" instead of "a.out". - if (OutputFilename.getNumOccurrences() == 0) - OutputFilename = "a.exe"; - - // If there is no suffix add an "exe" one. - sys::Path ExeFile( OutputFilename ); - if (ExeFile.getSuffix() == "") { - ExeFile.appendSuffix("exe"); - OutputFilename = ExeFile.str(); - } - } -#endif - - // Generate the bitcode for the optimized module. - // If -b wasn't specified, use the name specified - // with -o to construct BitcodeOutputFilename. - if (BitcodeOutputFilename.empty()) { - BitcodeOutputFilename = OutputFilename; - if (!LinkAsLibrary) BitcodeOutputFilename += ".bc"; - } - + // Generate the bitcode output. GenerateBitcode(Composite.get(), BitcodeOutputFilename); // If we are not linking a library, generate either a native executable @@ -600,13 +622,13 @@ int main(int argc, char **argv, char **envp) { prog = sys::Program::FindProgramByName(*I); if (prog.isEmpty()) PrintAndExit(std::string("Optimization program '") + *I + - "' is not found or not executable."); + "' is not found or not executable.", Composite.get()); } // Get the program arguments sys::Path tmp_output("opt_result"); std::string ErrMsg; if (tmp_output.createTemporaryFileOnDisk(true, &ErrMsg)) - PrintAndExit(ErrMsg); + PrintAndExit(ErrMsg, Composite.get()); const char* args[4]; args[0] = I->c_str(); @@ -614,15 +636,16 @@ int main(int argc, char **argv, char **envp) { args[2] = tmp_output.c_str(); args[3] = 0; if (0 == sys::Program::ExecuteAndWait(prog, args, 0,0,0,0, &ErrMsg)) { - if (tmp_output.isBitcodeFile() || tmp_output.isBitcodeFile()) { + if (tmp_output.isBitcodeFile()) { sys::Path target(BitcodeOutputFilename); target.eraseFromDisk(); if (tmp_output.renamePathOnDisk(target, &ErrMsg)) - PrintAndExit(ErrMsg, 2); + PrintAndExit(ErrMsg, Composite.get(), 2); } else - PrintAndExit("Post-link optimization output is not bitcode"); + PrintAndExit("Post-link optimization output is not bitcode", + Composite.get()); } else { - PrintAndExit(ErrMsg); + PrintAndExit(ErrMsg, Composite.get()); } } } @@ -636,79 +659,77 @@ int main(int argc, char **argv, char **envp) { sys::Path AssemblyFile ( OutputFilename); AssemblyFile.appendSuffix("s"); - // Mark the output files for removal if we get an interrupt. + // Mark the output files for removal. + FileRemover AssemblyFileRemover(AssemblyFile); sys::RemoveFileOnSignal(AssemblyFile); - sys::RemoveFileOnSignal(sys::Path(OutputFilename)); // Determine the locations of the llc and gcc programs. sys::Path llc = FindExecutable("llc", argv[0], (void *)(intptr_t)&Optimize); if (llc.isEmpty()) - PrintAndExit("Failed to find llc"); + PrintAndExit("Failed to find llc", Composite.get()); sys::Path gcc = sys::Program::FindProgramByName("gcc"); if (gcc.isEmpty()) - PrintAndExit("Failed to find gcc"); + PrintAndExit("Failed to find gcc", Composite.get()); // Generate an assembly language file for the bitcode. std::string ErrMsg; if (0 != GenerateAssembly(AssemblyFile.str(), BitcodeOutputFilename, llc, ErrMsg)) - PrintAndExit(ErrMsg); + PrintAndExit(ErrMsg, Composite.get()); if (0 != GenerateNative(OutputFilename, AssemblyFile.str(), NativeLinkItems, gcc, envp, ErrMsg)) - PrintAndExit(ErrMsg); - - // Remove the assembly language file. - AssemblyFile.eraseFromDisk(); + PrintAndExit(ErrMsg, Composite.get()); } else if (NativeCBE) { sys::Path CFile (OutputFilename); CFile.appendSuffix("cbe.c"); - // Mark the output files for removal if we get an interrupt. + // Mark the output files for removal. + FileRemover CFileRemover(CFile); sys::RemoveFileOnSignal(CFile); - sys::RemoveFileOnSignal(sys::Path(OutputFilename)); // Determine the locations of the llc and gcc programs. sys::Path llc = FindExecutable("llc", argv[0], (void *)(intptr_t)&Optimize); if (llc.isEmpty()) - PrintAndExit("Failed to find llc"); + PrintAndExit("Failed to find llc", Composite.get()); sys::Path gcc = sys::Program::FindProgramByName("gcc"); if (gcc.isEmpty()) - PrintAndExit("Failed to find gcc"); + PrintAndExit("Failed to find gcc", Composite.get()); // Generate an assembly language file for the bitcode. std::string ErrMsg; if (GenerateCFile(CFile.str(), BitcodeOutputFilename, llc, ErrMsg)) - PrintAndExit(ErrMsg); + PrintAndExit(ErrMsg, Composite.get()); if (GenerateNative(OutputFilename, CFile.str(), NativeLinkItems, gcc, envp, ErrMsg)) - PrintAndExit(ErrMsg); - - // Remove the assembly language file. - CFile.eraseFromDisk(); - + PrintAndExit(ErrMsg, Composite.get()); } else { - EmitShellScript(argv); + EmitShellScript(argv, Composite.get()); } // Make the script executable... std::string ErrMsg; if (sys::Path(OutputFilename).makeExecutableOnDisk(&ErrMsg)) - PrintAndExit(ErrMsg); + PrintAndExit(ErrMsg, Composite.get()); // Make the bitcode file readable and directly executable in LLEE as well if (sys::Path(BitcodeOutputFilename).makeExecutableOnDisk(&ErrMsg)) - PrintAndExit(ErrMsg); + PrintAndExit(ErrMsg, Composite.get()); if (sys::Path(BitcodeOutputFilename).makeReadableOnDisk(&ErrMsg)) - PrintAndExit(ErrMsg); + PrintAndExit(ErrMsg, Composite.get()); } + // Operations which may fail are now complete. + BitcodeOutputRemover.releaseFile(); + if (!LinkAsLibrary) + OutputRemover.releaseFile(); + // Graceful exit return 0; }