/// RunProgramRemotelyWithTimeout - This function runs the given program
/// remotely using the given remote client and the sys::Program::ExecuteAndWait.
/// Returns the remote program exit code or reports a remote client error if it
/// fails. Remote client is required to return 255 if it failed or program exit
/// code otherwise.
/// @see sys::Program::ExecuteAndWait
static int RunProgramRemotelyWithTimeout(const sys::Path &RemoteClientPath,
const char **Args,
const sys::Path &StdInFile,
const sys::Path &StdOutFile,
const sys::Path &StdErrFile,
unsigned NumSeconds = 0,
unsigned MemoryLimit = 0) {
const sys::Path* redirects[3];
redirects[0] = &StdInFile;
redirects[1] = &StdOutFile;
redirects[2] = &StdErrFile;
#if 0 // For debug purposes
{
errs() << "RUN:";
for (unsigned i = 0; Args[i]; ++i)
errs() << " " << Args[i];
errs() << "\n";
}
#endif
// Run the program remotely with the remote client
int ReturnCode = sys::Program::ExecuteAndWait(RemoteClientPath, Args,
0, redirects, NumSeconds, MemoryLimit);
// Has the remote client fail?
if (255 == ReturnCode) {
std::ostringstream OS;
OS << "\nError running remote client:\n ";
for (const char **Arg = Args; *Arg; ++Arg)
OS << " " << *Arg;
OS << "\n";
// The error message is in the output file, let's print it out from there.
std::ifstream ErrorFile(StdOutFile.c_str());
if (ErrorFile) {
std::copy(std::istreambuf_iterator<char>(ErrorFile),
std::istreambuf_iterator<char>(),
std::ostreambuf_iterator<char>(OS));
ErrorFile.close();
}
errs() << OS.str();
}
return ReturnCode;
}
bool LTOCodeGenerator::assemble(const std::string& asmPath,
const std::string& objPath, std::string& errMsg)
{
// find compiler driver
const sys::Path gcc = sys::Program::FindProgramByName("gcc");
if ( gcc.isEmpty() ) {
errMsg = "can't locate gcc";
return true;
}
// build argument list
std::vector<const char*> args;
std::string targetTriple = _linker.getModule()->getTargetTriple();
args.push_back(gcc.c_str());
if ( targetTriple.find("darwin") != targetTriple.size() ) {
if (strncmp(targetTriple.c_str(), "i686-apple-", 11) == 0) {
args.push_back("-arch");
args.push_back("i386");
}
else if (strncmp(targetTriple.c_str(), "x86_64-apple-", 13) == 0) {
args.push_back("-arch");
args.push_back("x86_64");
}
else if (strncmp(targetTriple.c_str(), "powerpc-apple-", 14) == 0) {
args.push_back("-arch");
args.push_back("ppc");
}
else if (strncmp(targetTriple.c_str(), "powerpc64-apple-", 16) == 0) {
args.push_back("-arch");
args.push_back("ppc64");
}
}
args.push_back("-c");
args.push_back("-x");
args.push_back("assembler");
args.push_back("-o");
args.push_back(objPath.c_str());
args.push_back(asmPath.c_str());
args.push_back(0);
// invoke assembler
if ( sys::Program::ExecuteAndWait(gcc, &args[0], 0, 0, 0, 0, &errMsg) ) {
errMsg = "error in assembly";
return true;
}
return false; // success
}
// LoadObject - Read in and parse the bitcode file named by FN and return the
// module it contains (wrapped in an auto_ptr), or auto_ptr<Module>() and set
// Error if an error occurs.
std::auto_ptr<Module>
Linker::LoadObject(const sys::Path &FN) {
std::string ParseErrorMessage;
Module *Result = 0;
OwningPtr<MemoryBuffer> Buffer;
if (error_code ec = MemoryBuffer::getFileOrSTDIN(FN.c_str(), Buffer))
ParseErrorMessage = "Error reading file '" + FN.str() + "'" + ": "
+ ec.message();
else
Result = ParseBitcodeFile(Buffer.get(), Context, &ParseErrorMessage);
if (Result)
return std::auto_ptr<Module>(Result);
Error = "Bitcode file '" + FN.str() + "' could not be loaded";
if (ParseErrorMessage.size())
Error += ": " + ParseErrorMessage;
return std::auto_ptr<Module>();
}
/// GenerateAssembly - generates a native assembly language source file from the
/// specified bytecode file.
///
/// Inputs:
/// InputFilename - The name of the input bytecode file.
/// OutputFilename - The name of the file to generate.
/// llc - The pathname to use for LLC.
/// envp - The environment to use when running LLC.
///
/// Return non-zero value on error.
///
static int GenerateAssembly(const std::string &OutputFilename,
const std::string &InputFilename,
const sys::Path &llc,
std::string &ErrMsg ) {
// Run LLC to convert the bytecode file into assembly code.
std::vector<const char*> args;
args.push_back(llc.c_str());
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) {
cout << "Generating Assembly With: \n";
PrintCommand(args);
}
return sys::Program::ExecuteAndWait(llc, &args[0], 0, 0, 0, 0, &ErrMsg);
}
/// GenerateCFile - generates a C source file from the specified bitcode file.
static int GenerateCFile(const std::string &OutputFile,
const std::string &InputFile,
const sys::Path &llc,
std::string& ErrMsg) {
// Run LLC to convert the bitcode file into C.
std::vector<const char*> args;
args.push_back(llc.c_str());
args.push_back("-march=c");
args.push_back("-o");
args.push_back(OutputFile.c_str());
args.push_back(InputFile.c_str());
args.push_back(0);
if (Verbose) {
errs() << "Generating C Source With: \n";
PrintCommand(args);
}
return sys::Program::ExecuteAndWait(llc, &args[0], 0, 0, 0, 0, &ErrMsg);
}
// Get just the externally visible defined symbols from the bitcode
bool llvm::GetBitcodeSymbols(const sys::Path& fName,
LLVMContext& Context,
std::vector<std::string>& symbols,
std::string* ErrMsg) {
OwningPtr<MemoryBuffer> Buffer;
if (error_code ec = MemoryBuffer::getFileOrSTDIN(fName.c_str(), Buffer)) {
if (ErrMsg) *ErrMsg = "Could not open file '" + fName.str() + "'" + ": "
+ ec.message();
return true;
}
Module *M = ParseBitcodeFile(Buffer.get(), Context, ErrMsg);
if (!M)
return true;
// Get the symbols
getSymbols(M, symbols);
// Done with the module.
delete M;
return true;
}
/// GenerateAssembly - generates a native assembly language source file from the
/// specified bitcode file.
///
/// Inputs:
/// InputFilename - The name of the input bitcode file.
/// OutputFilename - The name of the file to generate.
/// llc - The pathname to use for LLC.
/// envp - The environment to use when running LLC.
///
/// Return non-zero value on error.
///
static int GenerateAssembly(const std::string &OutputFilename,
const std::string &InputFilename,
const sys::Path &llc,
std::string &ErrMsg ) {
// Run LLC to convert the bitcode file into assembly code.
std::vector<const char*> args;
args.push_back(llc.c_str());
// 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("-o");
args.push_back(OutputFilename.c_str());
args.push_back(InputFilename.c_str());
args.push_back(0);
if (Verbose) {
errs() << "Generating Assembly With: \n";
PrintCommand(args);
}
return sys::Program::ExecuteAndWait(llc, &args[0], 0, 0, 0, 0, &ErrMsg);
}
void llvm::DisplayGraph(const sys::Path &Filename, bool wait,
GraphProgram::Name program) {
std::string ErrMsg;
#if HAVE_GRAPHVIZ
sys::Path Graphviz(LLVM_PATH_GRAPHVIZ);
std::vector<const char*> args;
args.push_back(Graphviz.c_str());
args.push_back(Filename.c_str());
args.push_back(0);
errs() << "Running 'Graphviz' program... ";
if (sys::Program::ExecuteAndWait(Graphviz, &args[0],0,0,0,0,&ErrMsg))
errs() << "Error viewing graph " << Filename.str() << ": " << ErrMsg
<< "\n";
else
Filename.eraseFromDisk();
#elif (HAVE_GV && (HAVE_DOT || HAVE_FDP || HAVE_NEATO || \
HAVE_TWOPI || HAVE_CIRCO))
sys::Path PSFilename = Filename;
PSFilename.appendSuffix("ps");
sys::Path prog;
// Set default grapher
#if HAVE_CIRCO
prog = sys::Path(LLVM_PATH_CIRCO);
#endif
#if HAVE_TWOPI
prog = sys::Path(LLVM_PATH_TWOPI);
#endif
#if HAVE_NEATO
prog = sys::Path(LLVM_PATH_NEATO);
#endif
#if HAVE_FDP
prog = sys::Path(LLVM_PATH_FDP);
#endif
#if HAVE_DOT
prog = sys::Path(LLVM_PATH_DOT);
#endif
// Find which program the user wants
#if HAVE_DOT
if (program == GraphProgram::DOT)
prog = sys::Path(LLVM_PATH_DOT);
#endif
#if (HAVE_FDP)
if (program == GraphProgram::FDP)
prog = sys::Path(LLVM_PATH_FDP);
#endif
#if (HAVE_NEATO)
if (program == GraphProgram::NEATO)
prog = sys::Path(LLVM_PATH_NEATO);
#endif
#if (HAVE_TWOPI)
if (program == GraphProgram::TWOPI)
prog = sys::Path(LLVM_PATH_TWOPI);
#endif
#if (HAVE_CIRCO)
if (program == GraphProgram::CIRCO)
prog = sys::Path(LLVM_PATH_CIRCO);
#endif
std::vector<const char*> args;
args.push_back(prog.c_str());
args.push_back("-Tps");
args.push_back("-Nfontname=Courier");
args.push_back("-Gsize=7.5,10");
args.push_back(Filename.c_str());
args.push_back("-o");
args.push_back(PSFilename.c_str());
args.push_back(0);
errs() << "Running '" << prog.str() << "' program... ";
if (sys::Program::ExecuteAndWait(prog, &args[0], 0, 0, 0, 0, &ErrMsg)) {
errs() << "Error viewing graph " << Filename.str() << ": '"
<< ErrMsg << "\n";
} else {
errs() << " done. \n";
sys::Path gv(LLVM_PATH_GV);
args.clear();
args.push_back(gv.c_str());
args.push_back(PSFilename.c_str());
args.push_back("--spartan");
args.push_back(0);
ErrMsg.clear();
if (wait) {
if (sys::Program::ExecuteAndWait(gv, &args[0],0,0,0,0,&ErrMsg))
errs() << "Error viewing graph: " << ErrMsg << "\n";
Filename.eraseFromDisk();
PSFilename.eraseFromDisk();
}
else {
sys::Program::ExecuteNoWait(gv, &args[0],0,0,0,&ErrMsg);
errs() << "Remember to erase graph files: " << Filename.str() << " "
<< PSFilename.str() << "\n";
}
}
#elif HAVE_DOTTY
sys::Path dotty(LLVM_PATH_DOTTY);
std::vector<const char*> args;
args.push_back(dotty.c_str());
args.push_back(Filename.c_str());
args.push_back(0);
errs() << "Running 'dotty' program... ";
if (sys::Program::ExecuteAndWait(dotty, &args[0],0,0,0,0,&ErrMsg)) {
errs() << "Error viewing graph " << Filename.str() << ": "
<< ErrMsg << "\n";
} else {
#ifdef __MINGW32__ // Dotty spawns another app and doesn't wait until it returns
return;
#endif
Filename.eraseFromDisk();
}
#endif
}
void llvm::DisplayGraph(const sys::Path &Filename) {
std::string ErrMsg;
#if HAVE_GRAPHVIZ
sys::Path Graphviz(LLVM_PATH_GRAPHVIZ);
std::vector<const char*> args;
args.push_back(Graphviz.c_str());
args.push_back(Filename.c_str());
args.push_back(0);
cerr << "Running 'Graphviz' program... " << std::flush;
if (sys::Program::ExecuteAndWait(Graphviz, &args[0],0,0,0,0,&ErrMsg)) {
cerr << "Error viewing graph: " << ErrMsg << "\n";
}
#elif (HAVE_GV && HAVE_DOT)
sys::Path PSFilename = Filename;
PSFilename.appendSuffix("ps");
sys::Path dot(LLVM_PATH_DOT);
std::vector<const char*> args;
args.push_back(dot.c_str());
args.push_back("-Tps");
args.push_back("-Nfontname=Courier");
args.push_back("-Gsize=7.5,10");
args.push_back(Filename.c_str());
args.push_back("-o");
args.push_back(PSFilename.c_str());
args.push_back(0);
cerr << "Running 'dot' program... " << std::flush;
if (sys::Program::ExecuteAndWait(dot, &args[0],0,0,0,0,&ErrMsg)) {
cerr << "Error viewing graph: '" << ErrMsg << "\n";
} else {
cerr << " done. \n";
sys::Path gv(LLVM_PATH_GV);
args.clear();
args.push_back(gv.c_str());
args.push_back(PSFilename.c_str());
args.push_back(0);
ErrMsg.clear();
if (sys::Program::ExecuteAndWait(gv, &args[0],0,0,0,0,&ErrMsg)) {
cerr << "Error viewing graph: " << ErrMsg << "\n";
}
}
PSFilename.eraseFromDisk();
#elif HAVE_DOTTY
sys::Path dotty(LLVM_PATH_DOTTY);
std::vector<const char*> args;
args.push_back(dotty.c_str());
args.push_back(Filename.c_str());
args.push_back(0);
cerr << "Running 'dotty' program... " << std::flush;
if (sys::Program::ExecuteAndWait(dotty, &args[0],0,0,0,0,&ErrMsg)) {
cerr << "Error viewing graph: " << ErrMsg << "\n";
} else {
#ifdef __MINGW32__ // Dotty spawns another app and doesn't wait until it returns
return;
#endif
}
#endif
Filename.eraseFromDisk();
}
///Link all modules together and optimize them using IPO. Generate
/// native object file using OutputFilename
/// Return appropriate LTOStatus.
enum LTOStatus
LTO::optimizeModules(const std::string &OutputFilename,
std::vector<const char *> &exportList,
std::string &targetTriple,
bool saveTemps, const char *FinalOutputFilename)
{
if (modules.empty())
return LTO_NO_WORK;
std::ios::openmode io_mode =
std::ios::out | std::ios::trunc | std::ios::binary;
std::string *errMsg = NULL;
Module *bigOne = modules[0];
Linker theLinker("LinkTimeOptimizer", bigOne, false);
for (unsigned i = 1, e = modules.size(); i != e; ++i)
if (theLinker.LinkModules(bigOne, modules[i], errMsg))
return LTO_MODULE_MERGE_FAILURE;
// all modules have been handed off to the linker.
modules.clear();
sys::Path FinalOutputPath(FinalOutputFilename);
FinalOutputPath.eraseSuffix();
switch(CGModel) {
case LTO_CGM_Dynamic:
Target->setRelocationModel(Reloc::PIC_);
break;
case LTO_CGM_DynamicNoPIC:
Target->setRelocationModel(Reloc::DynamicNoPIC);
break;
case LTO_CGM_Static:
Target->setRelocationModel(Reloc::Static);
break;
}
if (saveTemps) {
std::string tempFileName(FinalOutputPath.c_str());
tempFileName += "0.bc";
std::ofstream Out(tempFileName.c_str(), io_mode);
WriteBitcodeToFile(bigOne, Out);
}
// Strip leading underscore because it was added to match names
// seen by linker.
for (unsigned i = 0, e = exportList.size(); i != e; ++i) {
const char *name = exportList[i];
NameToSymbolMap::iterator itr = allSymbols.find(name);
if (itr != allSymbols.end())
exportList[i] = allSymbols[name]->getName();
}
std::string ErrMsg;
sys::Path TempDir = sys::Path::GetTemporaryDirectory(&ErrMsg);
if (TempDir.isEmpty()) {
cerr << "lto: " << ErrMsg << "\n";
return LTO_WRITE_FAILURE;
}
sys::Path tmpAsmFilePath(TempDir);
if (!tmpAsmFilePath.appendComponent("lto")) {
cerr << "lto: " << ErrMsg << "\n";
TempDir.eraseFromDisk(true);
return LTO_WRITE_FAILURE;
}
if (tmpAsmFilePath.createTemporaryFileOnDisk(true, &ErrMsg)) {
cerr << "lto: " << ErrMsg << "\n";
TempDir.eraseFromDisk(true);
return LTO_WRITE_FAILURE;
}
sys::RemoveFileOnSignal(tmpAsmFilePath);
std::ofstream asmFile(tmpAsmFilePath.c_str(), io_mode);
if (!asmFile.is_open() || asmFile.bad()) {
if (tmpAsmFilePath.exists()) {
tmpAsmFilePath.eraseFromDisk();
TempDir.eraseFromDisk(true);
}
return LTO_WRITE_FAILURE;
}
enum LTOStatus status = optimize(bigOne, asmFile, exportList);
asmFile.close();
if (status != LTO_OPT_SUCCESS) {
tmpAsmFilePath.eraseFromDisk();
TempDir.eraseFromDisk(true);
return status;
}
if (saveTemps) {
std::string tempFileName(FinalOutputPath.c_str());
tempFileName += "1.bc";
std::ofstream Out(tempFileName.c_str(), io_mode);
WriteBitcodeToFile(bigOne, Out);
}
targetTriple = bigOne->getTargetTriple();
// Run GCC to assemble and link the program into native code.
//
// Note:
// We can't just assemble and link the file with the system assembler
// and linker because we don't know where to put the _start symbol.
// GCC mysteriously knows how to do it.
const sys::Path gcc = sys::Program::FindProgramByName("gcc");
if (gcc.isEmpty()) {
tmpAsmFilePath.eraseFromDisk();
TempDir.eraseFromDisk(true);
return LTO_ASM_FAILURE;
}
std::vector<const char*> args;
args.push_back(gcc.c_str());
if (strncmp(targetTriple.c_str(), "i686-apple-", 11) == 0) {
args.push_back("-arch");
args.push_back("i386");
}
if (strncmp(targetTriple.c_str(), "x86_64-apple-", 13) == 0) {
args.push_back("-arch");
args.push_back("x86_64");
}
if (strncmp(targetTriple.c_str(), "powerpc-apple-", 14) == 0) {
args.push_back("-arch");
args.push_back("ppc");
}
if (strncmp(targetTriple.c_str(), "powerpc64-apple-", 16) == 0) {
args.push_back("-arch");
args.push_back("ppc64");
}
args.push_back("-c");
args.push_back("-x");
args.push_back("assembler");
args.push_back("-o");
args.push_back(OutputFilename.c_str());
args.push_back(tmpAsmFilePath.c_str());
args.push_back(0);
if (sys::Program::ExecuteAndWait(gcc, &args[0], 0, 0, 0, 0, &ErrMsg)) {
cerr << "lto: " << ErrMsg << "\n";
return LTO_ASM_FAILURE;
}
tmpAsmFilePath.eraseFromDisk();
TempDir.eraseFromDisk(true);
return LTO_OPT_SUCCESS;
}
static int CompileSubprocess(const char **argv, int argc,
sys::Path &ResourceDir, bool bugreport,
bool versionOnly, sys::Path &apiMapPath)
{
std::vector<char*> llvmArgs;
char apim[] = "-clam-apimap";
llvmArgs.push_back((char*)argv[0]);
llvmArgs.push_back(apim);
llvmArgs.push_back((char*)apiMapPath.c_str());
// Split args into cc1 and LLVM args, separator is --
int cc1_argc;
for (cc1_argc=1;cc1_argc<argc;cc1_argc++) {
if (StringRef(argv[cc1_argc]) == "--") {
for (int i=cc1_argc+1;i<argc;i++) {
llvmArgs.push_back((char*)argv[i]);
}
break;
}
}
// Initialize CompilerInstance from commandline args
CompilerInstance Clang;
Clang.setLLVMContext(new llvm::LLVMContext);
LLVMInitializeClamBCTargetInfo();
LLVMInitializeClamBCTarget();
TextDiagnosticBuffer DiagsBuffer;
Diagnostic Diags(&DiagsBuffer);
CompilerInvocation::CreateFromArgs(Clang.getInvocation(), argv+1,
argv+cc1_argc, Diags);
FrontendOptions &FrontendOpts = Clang.getInvocation().getFrontendOpts();
// Handle --version
if (FrontendOpts.ShowVersion || versionOnly) {
printVersion(outs(), true);
exit(0);
}
DiagnosticOptions &DiagOpts = Clang.getInvocation().getDiagnosticOpts();
DiagOpts.ShowOptionNames = DiagOpts.ShowColors = 1;
DiagOpts.MessageLength = 80;// we are writing to a file
DiagOpts.Warnings.push_back("all");
DiagOpts.Warnings.push_back("no-pointer-sign");
Clang.createDiagnostics(argc-1, const_cast<char**>(argv+1));
if (!Clang.hasDiagnostics())
return 2;
Clang.getInvocation().getHeaderSearchOpts().ResourceDir = ResourceDir.str();
// Set default options
LangOptions &LangOpts = Clang.getInvocation().getLangOpts();
// This is a freestanding environment, without libc, etc.
LangOpts.Freestanding = 1;
HeaderSearchOptions &HeaderSearchOpts =
Clang.getInvocation().getHeaderSearchOpts();
HeaderSearchOpts.UseStandardIncludes = 0;
if (bugreport)
HeaderSearchOpts.Verbose = 1;
if (FrontendOpts.ProgramAction != frontend::PrintPreprocessedInput)
FrontendOpts.ProgramAction = frontend::EmitBC;
if (bugreport)
FrontendOpts.ProgramAction = frontend::PrintPreprocessedInput;
// Don't bother freeing of memory on exit
FrontendOpts.DisableFree = 1;
CodeGenOptions &Opts = Clang.getInvocation().getCodeGenOpts();
Opts.Inlining = CodeGenOptions::OnlyAlwaysInlining;
// always generate debug info, so that ClamBC backend can output sourcelevel
// diagnostics.
Opts.DebugInfo = true;
// FIXME: once the verifier can work w/o targetdata, and targetdate opts set
// DisableLLVMOpts to true!
// This is needed to avoid target-specific optimizations
Opts.DisableLLVMOpts = false;
AnalyzerOptions &AOpts = Clang.getInvocation().getAnalyzerOpts();
AOpts.AnalysisList.push_back(WarnDeadStores);
AOpts.AnalysisList.push_back(WarnUninitVals);
AOpts.AnalysisList.push_back(SecuritySyntacticChecks);
AOpts.AnalysisList.push_back(WarnSizeofPointer);
// Set triple
Clang.getInvocation().getTargetOpts().Triple = "clambc-generic-generic";
// Set default include
Clang.getInvocation().getPreprocessorOpts().Includes.push_back("bytecode.h");
// Set an LLVM error handler.
llvm::llvm_install_error_handler(LLVMErrorHandler,
static_cast<void*>(&Clang.getDiagnostics()));
DiagsBuffer.FlushDiagnostics(Clang.getDiagnostics());
// If there were any errors in processing arguments, exit now.
if (Clang.getDiagnostics().getNumErrors())
return 1;
// Create the target instance.
//TODO: directly create a clambc target
Clang.setTarget(TargetInfo::CreateTargetInfo(Clang.getDiagnostics(),
Clang.getTargetOpts()));
if (!Clang.hasTarget())
return 1;
// Inform the target of the language options
Clang.getTarget().setForcedLangOptions(Clang.getLangOpts());
if (Clang.getHeaderSearchOpts().Verbose) {
llvm::errs() << "clang -cc1 version " CLANG_VERSION_STRING
<< " based upon " << PACKAGE_STRING
<< " hosted on " << llvm::sys::getHostTriple() << "\n";
// Convert the invocation back to argument strings.
std::vector<std::string> InvocationArgs;
Clang.getInvocation().toArgs(InvocationArgs);
// Dump the converted arguments.
llvm::SmallVector<const char*, 32> Invocation2Args;
llvm::errs() << "invocation argv :";
for (unsigned i = 0, e = InvocationArgs.size(); i != e; ++i) {
Invocation2Args.push_back(InvocationArgs[i].c_str());
llvm::errs() << " \"" << InvocationArgs[i] << '"';
}
llvm::errs() << "\n";
}
std::string Input = FrontendOpts.Inputs[0].second;
if (Input == "-" && bugreport)
return 2;
raw_fd_ostream *fd = 0;
if (FrontendOpts.ProgramAction == frontend::EmitBC) {
// replace output file of compiler with a tempfile,
// and save the final output filename.
std::string FinalOutput = FrontendOpts.OutputFile;
if (FinalOutput.empty()) {
if (Input == "-")
FinalOutput = "-";
else {
sys::Path P(sys::Path(Input).getBasename());
P.appendSuffix("cbc");
FinalOutput = P.str();
}
}
llvm::raw_fd_ostream *tmpfd;
std::string Err2;
fd = Clang.createOutputFile(FinalOutput, Err2, false);
if (!fd) {
Clang.getDiagnostics().Report(clang::diag::err_drv_unable_to_make_temp) << Err2;
return 1;
}
sys::Path P = sys::Path(FinalOutput);
P.eraseSuffix();
P.appendSuffix("tmp.bc");
FrontendOpts.OutputFile = P.str();
tmpfd = Clang.createOutputFile(P.str(), Err2, true);
if (!tmpfd) {
Clang.getDiagnostics().Report(clang::diag::err_drv_unable_to_make_temp) << Err2;
return 1;
}
delete tmpfd;
sys::RemoveFileOnSignal(sys::Path(FrontendOpts.OutputFile));
}
if (!FrontendOpts.Inputs.empty()) {
char srcp[] = "-clambc-src";
llvmArgs.push_back(srcp);
llvmArgs.push_back(strdup(Input.c_str()));
}
// Parse LLVM commandline args
cl::ParseCommandLineOptions(llvmArgs.size(), &llvmArgs[0]);
std::string re2cpath = getTmpDir();
if (re2cpath.empty()) {
llvm::errs()<< "Failed to create temporary file for re2c-out!\n";
return 2;
}
re2cpath += "/clambc-compiler-re2c-out";
sys::Path TmpRe2C(re2cpath);
if (!FrontendOpts.Inputs.empty()) {
char re2c_args[] = "--no-generation-date";
char re2c_o[] = "-o";
char name[] = "";
char *args[6] = {
name,
re2c_args,
re2c_o,
NULL,
NULL,
NULL
};
args[4] = strdup(Input.c_str());
std::string ErrMsg("");
if (TmpRe2C.createTemporaryFileOnDisk(true, &ErrMsg)) {
Clang.getDiagnostics().Report(clang::diag::err_drv_unable_to_make_temp) <<
ErrMsg;
return 1;
}
sys::RemoveFileOnSignal(TmpRe2C);
args[3] = strdup(TmpRe2C.str().c_str());
int ret = re2c_main(5, args);
if (ret) {
Clang.getDiagnostics().Report(clang::diag::err_drv_command_failed) <<
"re2c" << ret;
return 1;
}
Input = TmpRe2C.str();
}
// Create a file manager object to provide access to and cache the
// filesystem.
Clang.createFileManager();
// Create the source manager.
Clang.createSourceManager();
// Create the preprocessor.
Clang.createPreprocessor();
llvm::OwningPtr<FrontendAction> Act(CreateFrontendAction(Clang));
if (Act && Act->BeginSourceFile(Clang, Input, false)) {
Act->Execute();
Act->EndSourceFile();
}
TmpRe2C.eraseFromDisk();// erase tempfile
int ret = Clang.getDiagnostics().getNumErrors() != 0;
if (ret)
return ret;
if (FrontendOpts.ProgramAction != frontend::EmitBC) {
// stop processing if not compiling a final .cbc file
return 0;
}
ret = compileInternal(FrontendOpts.OutputFile.c_str(), Opts.OptimizationLevel,
Opts.OptimizeSize, argv[0], fd, Clang);
// Erase temp file, we need to do this here since OutputFile is a tempfile
// only if action was EmitBC
sys::Path(FrontendOpts.OutputFile).eraseFromDisk();
return ret;
}
/// GenerateNative - generates a native object file from the
/// specified bytecode file.
///
/// Inputs:
/// InputFilename - The name of the input bytecode file.
/// OutputFilename - The name of the file to generate.
/// NativeLinkItems - The native libraries, files, code with which to link
/// LibPaths - The list of directories in which to find libraries.
/// gcc - The pathname to use for GGC.
/// envp - A copy of the process's current environment.
///
/// Outputs:
/// None.
///
/// Returns non-zero value on error.
///
static int GenerateNative(const std::string &OutputFilename,
const std::string &InputFilename,
const Linker::ItemList &LinkItems,
const sys::Path &gcc, char ** const envp,
std::string& ErrMsg) {
// Remove these environment variables from the environment of the
// programs that we will execute. It appears that GCC sets these
// environment variables so that the programs it uses can configure
// themselves identically.
//
// However, when we invoke GCC below, we want it to use its normal
// configuration. Hence, we must sanitize its environment.
char ** clean_env = CopyEnv(envp);
if (clean_env == NULL)
return 1;
RemoveEnv("LIBRARY_PATH", clean_env);
RemoveEnv("COLLECT_GCC_OPTIONS", clean_env);
RemoveEnv("GCC_EXEC_PREFIX", clean_env);
RemoveEnv("COMPILER_PATH", clean_env);
RemoveEnv("COLLECT_GCC", clean_env);
// Run GCC to assemble and link the program into native code.
//
// Note:
// We can't just assemble and link the file with the system assembler
// and linker because we don't know where to put the _start symbol.
// GCC mysteriously knows how to do it.
std::vector<const char*> args;
args.push_back(gcc.c_str());
args.push_back("-fno-strict-aliasing");
args.push_back("-O3");
args.push_back("-o");
args.push_back(OutputFilename.c_str());
args.push_back(InputFilename.c_str());
// Add in the library paths
for (unsigned index = 0; index < LibPaths.size(); index++) {
args.push_back("-L");
args.push_back(LibPaths[index].c_str());
}
// Add the requested options
for (unsigned index = 0; index < XLinker.size(); index++) {
args.push_back(XLinker[index].c_str());
args.push_back(Libraries[index].c_str());
}
// Add in the libraries to link.
for (unsigned index = 0; index < LinkItems.size(); index++)
if (LinkItems[index].first != "crtend") {
if (LinkItems[index].second) {
std::string lib_name = "-l" + LinkItems[index].first;
args.push_back(lib_name.c_str());
} else
args.push_back(LinkItems[index].first.c_str());
}
args.push_back(0);
if (Verbose) {
cout << "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);
delete [] clean_env;
return R;
}
void llvm::DisplayGraph(const sys::Path &Filename, bool wait,
GraphProgram::Name program) {
wait &= !ViewBackground;
std::string ErrMsg;
#if HAVE_GRAPHVIZ
sys::Path Graphviz(LLVM_PATH_GRAPHVIZ);
std::vector<const char*> args;
args.push_back(Graphviz.c_str());
args.push_back(Filename.c_str());
args.push_back(0);
errs() << "Running 'Graphviz' program... ";
if (!ExecGraphViewer(Graphviz, args, Filename, wait, ErrMsg))
return;
#elif HAVE_XDOT_PY
std::vector<const char*> args;
args.push_back(LLVM_PATH_XDOT_PY);
args.push_back(Filename.c_str());
switch (program) {
case GraphProgram::DOT: args.push_back("-f"); args.push_back("dot"); break;
case GraphProgram::FDP: args.push_back("-f"); args.push_back("fdp"); break;
case GraphProgram::NEATO: args.push_back("-f"); args.push_back("neato");break;
case GraphProgram::TWOPI: args.push_back("-f"); args.push_back("twopi");break;
case GraphProgram::CIRCO: args.push_back("-f"); args.push_back("circo");break;
}
args.push_back(0);
errs() << "Running 'xdot.py' program... ";
if (!ExecGraphViewer(sys::Path(LLVM_PATH_XDOT_PY), args, Filename, wait, ErrMsg))
return;
#elif (HAVE_GV && (HAVE_DOT || HAVE_FDP || HAVE_NEATO || \
HAVE_TWOPI || HAVE_CIRCO))
sys::Path PSFilename = Filename;
PSFilename.appendSuffix("ps");
sys::Path prog;
// Set default grapher
#if HAVE_CIRCO
prog = sys::Path(LLVM_PATH_CIRCO);
#endif
#if HAVE_TWOPI
prog = sys::Path(LLVM_PATH_TWOPI);
#endif
#if HAVE_NEATO
prog = sys::Path(LLVM_PATH_NEATO);
#endif
#if HAVE_FDP
prog = sys::Path(LLVM_PATH_FDP);
#endif
#if HAVE_DOT
prog = sys::Path(LLVM_PATH_DOT);
#endif
// Find which program the user wants
#if HAVE_DOT
if (program == GraphProgram::DOT)
prog = sys::Path(LLVM_PATH_DOT);
#endif
#if (HAVE_FDP)
if (program == GraphProgram::FDP)
prog = sys::Path(LLVM_PATH_FDP);
#endif
#if (HAVE_NEATO)
if (program == GraphProgram::NEATO)
prog = sys::Path(LLVM_PATH_NEATO);
#endif
#if (HAVE_TWOPI)
if (program == GraphProgram::TWOPI)
prog = sys::Path(LLVM_PATH_TWOPI);
#endif
#if (HAVE_CIRCO)
if (program == GraphProgram::CIRCO)
prog = sys::Path(LLVM_PATH_CIRCO);
#endif
std::vector<const char*> args;
args.push_back(prog.c_str());
args.push_back("-Tps");
args.push_back("-Nfontname=Courier");
args.push_back("-Gsize=7.5,10");
args.push_back(Filename.c_str());
args.push_back("-o");
args.push_back(PSFilename.c_str());
args.push_back(0);
errs() << "Running '" << prog.str() << "' program... ";
if (!ExecGraphViewer(prog, args, Filename, wait, ErrMsg))
return;
sys::Path gv(LLVM_PATH_GV);
args.clear();
args.push_back(gv.c_str());
args.push_back(PSFilename.c_str());
args.push_back("--spartan");
args.push_back(0);
ErrMsg.clear();
if (!ExecGraphViewer(gv, args, PSFilename, wait, ErrMsg))
return;
#elif HAVE_DOTTY
sys::Path dotty(LLVM_PATH_DOTTY);
std::vector<const char*> args;
args.push_back(dotty.c_str());
args.push_back(Filename.c_str());
args.push_back(0);
// Dotty spawns another app and doesn't wait until it returns
#if defined (__MINGW32__) || defined (_WINDOWS)
wait = false;
#endif
errs() << "Running 'dotty' program... ";
if (!ExecGraphViewer(dotty, args, Filename, wait, ErrMsg))
return;
#endif
}
/// GenerateNative - generates a native object file from the
/// specified bitcode file.
///
/// Inputs:
/// InputFilename - The name of the input bitcode file.
/// OutputFilename - The name of the file to generate.
/// NativeLinkItems - The native libraries, files, code with which to link
/// LibPaths - The list of directories in which to find libraries.
/// FrameworksPaths - The list of directories in which to find frameworks.
/// Frameworks - The list of frameworks (dynamic libraries)
/// gcc - The pathname to use for GGC.
/// envp - A copy of the process's current environment.
///
/// Outputs:
/// None.
///
/// Returns non-zero value on error.
///
static int GenerateNative(const std::string &OutputFilename,
const std::string &InputFilename,
const Linker::ItemList &LinkItems,
const sys::Path &gcc, char ** const envp,
std::string& ErrMsg) {
// Remove these environment variables from the environment of the
// programs that we will execute. It appears that GCC sets these
// environment variables so that the programs it uses can configure
// themselves identically.
//
// However, when we invoke GCC below, we want it to use its normal
// configuration. Hence, we must sanitize its environment.
char ** clean_env = CopyEnv(envp);
if (clean_env == NULL)
return 1;
RemoveEnv("LIBRARY_PATH", clean_env);
RemoveEnv("COLLECT_GCC_OPTIONS", clean_env);
RemoveEnv("GCC_EXEC_PREFIX", clean_env);
RemoveEnv("COMPILER_PATH", clean_env);
RemoveEnv("COLLECT_GCC", clean_env);
// Run GCC to assemble and link the program into native code.
//
// Note:
// We can't just assemble and link the file with the system assembler
// and linker because we don't know where to put the _start symbol.
// GCC mysteriously knows how to do it.
std::vector<std::string> args;
args.push_back(gcc.c_str());
args.push_back("-fno-strict-aliasing");
args.push_back("-O3");
args.push_back("-o");
args.push_back(OutputFilename);
args.push_back(InputFilename);
// Add in the library and framework paths
for (unsigned index = 0; index < LibPaths.size(); index++) {
args.push_back("-L" + LibPaths[index]);
}
for (unsigned index = 0; index < FrameworkPaths.size(); index++) {
args.push_back("-F" + FrameworkPaths[index]);
}
// Add the requested options
for (unsigned index = 0; index < XLinker.size(); index++)
args.push_back(XLinker[index]);
// Add in the libraries to link.
for (unsigned index = 0; index < LinkItems.size(); index++)
if (LinkItems[index].first != "crtend") {
if (LinkItems[index].second)
args.push_back("-l" + LinkItems[index].first);
else
args.push_back(LinkItems[index].first);
}
// Add in frameworks to link.
for (unsigned index = 0; index < Frameworks.size(); index++) {
args.push_back("-framework");
args.push_back(Frameworks[index]);
}
// Now that "args" owns all the std::strings for the arguments, call the c_str
// method to get the underlying string array. We do this game so that the
// std::string array is guaranteed to outlive the const char* array.
std::vector<const char *> Args;
for (unsigned i = 0, e = args.size(); i != e; ++i)
Args.push_back(args[i].c_str());
Args.push_back(0);
if (Verbose) {
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_cast<const char **>(clean_env), 0, 0, 0, &ErrMsg);
delete [] clean_env;
return R;
}