tools/bugpoint/ToolRunner.cpp

   1 //===-- ToolRunner.cpp ----------------------------------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file implements the interfaces described in the ToolRunner.h file.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #define DEBUG_TYPE "toolrunner"
  15 #include "ToolRunner.h"
  16 #include "llvm/Config/config.h"   // for HAVE_LINK_R
  17 #include "llvm/System/Program.h"
  18 #include "llvm/Support/CommandLine.h"
  19 #include "llvm/Support/Debug.h"
  20 #include "llvm/Support/FileUtilities.h"
  21 #include <fstream>
  22 #include <sstream>
  23 #include <iostream>
  24 using namespace llvm;
  25
  26 namespace {
  27   cl::opt<std::string>
  28   RemoteClient("remote-client",
  29                cl::desc("Remote execution client (rsh/ssh)"));
  30
  31   cl::opt<std::string>
  32   RemoteHost("remote-host",
  33              cl::desc("Remote execution (rsh/ssh) host"));
  34
  35   cl::opt<std::string>
  36   RemoteUser("remote-user",
  37              cl::desc("Remote execution (rsh/ssh) user id"));
  38
  39   cl::opt<std::string>
  40   RemoteExtra("remote-extra-options",
  41           cl::desc("Remote execution (rsh/ssh) extra options"));
  42 }
  43
  44 ToolExecutionError::~ToolExecutionError() throw() { }
  45
  46 /// RunProgramWithTimeout - This function provides an alternate interface to the
  47 /// sys::Program::ExecuteAndWait interface.
  48 /// @see sys:Program::ExecuteAndWait
  49 static int RunProgramWithTimeout(const sys::Path &ProgramPath,
  50                                  const char **Args,
  51                                  const sys::Path &StdInFile,
  52                                  const sys::Path &StdOutFile,
  53                                  const sys::Path &StdErrFile,
  54                                  unsigned NumSeconds = 0,
  55                                  unsigned MemoryLimit = 0) {
  56   const sys::Path* redirects[3];
  57   redirects[0] = &StdInFile;
  58   redirects[1] = &StdOutFile;
  59   redirects[2] = &StdErrFile;
  60
  61   if (0) {
  62     std::cerr << "RUN:";
  63     for (unsigned i = 0; Args[i]; ++i)
  64       std::cerr << " " << Args[i];
  65     std::cerr << "\n";
  66   }
  67
  68   return
  69     sys::Program::ExecuteAndWait(ProgramPath, Args, 0, redirects,
  70                                  NumSeconds, MemoryLimit);
  71 }
  72
  73
  74
  75 static void ProcessFailure(sys::Path ProgPath, const char** Args) {
  76   std::ostringstream OS;
  77   OS << "\nError running tool:\n ";
  78   for (const char **Arg = Args; *Arg; ++Arg)
  79     OS << " " << *Arg;
  80   OS << "\n";
  81
  82   // Rerun the compiler, capturing any error messages to print them.
  83   sys::Path ErrorFilename("bugpoint.program_error_messages");
  84   std::string ErrMsg;
  85   if (ErrorFilename.makeUnique(true, &ErrMsg)) {
  86     std::cerr << "Error making unique filename: " << ErrMsg << "\n";
  87     exit(1);
  88   }
  89   RunProgramWithTimeout(ProgPath, Args, sys::Path(""), ErrorFilename,
  90                         ErrorFilename); // FIXME: check return code ?
  91
  92   // Print out the error messages generated by GCC if possible...
  93   std::ifstream ErrorFile(ErrorFilename.c_str());
  94   if (ErrorFile) {
  95     std::copy(std::istreambuf_iterator<char>(ErrorFile),
  96               std::istreambuf_iterator<char>(),
  97               std::ostreambuf_iterator<char>(OS));
  98     ErrorFile.close();
  99   }
 100
 101   ErrorFilename.eraseFromDisk();
 102   throw ToolExecutionError(OS.str());
 103 }
 104
 105 //===---------------------------------------------------------------------===//
 106 // LLI Implementation of AbstractIntepreter interface
 107 //
 108 namespace {
 109   class LLI : public AbstractInterpreter {
 110     std::string LLIPath;          // The path to the LLI executable
 111     std::vector<std::string> ToolArgs; // Args to pass to LLI
 112   public:
 113     LLI(const std::string &Path, const std::vector<std::string> *Args)
 114       : LLIPath(Path) {
 115       ToolArgs.clear ();
 116       if (Args) { ToolArgs = *Args; }
 117     }
 118
 119     virtual int ExecuteProgram(const std::string &Bitcode,
 120                                const std::vector<std::string> &Args,
 121                                const std::string &InputFile,
 122                                const std::string &OutputFile,
 123                                const std::vector<std::string> &GCCArgs,
 124                                const std::vector<std::string> &SharedLibs =
 125                                std::vector<std::string>(),
 126                                unsigned Timeout = 0,
 127                                unsigned MemoryLimit = 0);
 128   };
 129 }
 130
 131 int LLI::ExecuteProgram(const std::string &Bitcode,
 132                         const std::vector<std::string> &Args,
 133                         const std::string &InputFile,
 134                         const std::string &OutputFile,
 135                         const std::vector<std::string> &GCCArgs,
 136                         const std::vector<std::string> &SharedLibs,
 137                         unsigned Timeout,
 138                         unsigned MemoryLimit) {
 139   if (!SharedLibs.empty())
 140     throw ToolExecutionError("LLI currently does not support "
 141                              "loading shared libraries.");
 142
 143   std::vector<const char*> LLIArgs;
 144   LLIArgs.push_back(LLIPath.c_str());
 145   LLIArgs.push_back("-force-interpreter=true");
 146
 147   // Add any extra LLI args.
 148   for (unsigned i = 0, e = ToolArgs.size(); i != e; ++i)
 149     LLIArgs.push_back(ToolArgs[i].c_str());
 150
 151   LLIArgs.push_back(Bitcode.c_str());
 152   // Add optional parameters to the running program from Argv
 153   for (unsigned i=0, e = Args.size(); i != e; ++i)
 154     LLIArgs.push_back(Args[i].c_str());
 155   LLIArgs.push_back(0);
 156
 157   std::cout << "<lli>" << std::flush;
 158   DEBUG(std::cerr << "\nAbout to run:\t";
 159         for (unsigned i=0, e = LLIArgs.size()-1; i != e; ++i)
 160           std::cerr << " " << LLIArgs[i];
 161         std::cerr << "\n";
 162         );
 163   return RunProgramWithTimeout(sys::Path(LLIPath), &LLIArgs[0],
 164       sys::Path(InputFile), sys::Path(OutputFile), sys::Path(OutputFile),
 165       Timeout, MemoryLimit);
 166 }
 167
 168 // LLI create method - Try to find the LLI executable
 169 AbstractInterpreter *AbstractInterpreter::createLLI(const std::string &ProgPath,
 170                                                     std::string &Message,
 171                                      const std::vector<std::string> *ToolArgs) {
 172   std::string LLIPath = FindExecutable("lli", ProgPath).toString();
 173   if (!LLIPath.empty()) {
 174     Message = "Found lli: " + LLIPath + "\n";
 175     return new LLI(LLIPath, ToolArgs);
 176   }
 177
 178   Message = "Cannot find `lli' in executable directory or PATH!\n";
 179   return 0;
 180 }
 181
 182 //===---------------------------------------------------------------------===//
 183 // Custom execution command implementation of AbstractIntepreter interface
 184 //
 185 // Allows using a custom command for executing the bitcode, thus allows,
 186 // for example, to invoke a cross compiler for code generation followed by
 187 // a simulator that executes the generated binary.
 188 namespace {
 189   class CustomExecutor : public AbstractInterpreter {
 190     std::string ExecutionCommand;
 191     std::vector<std::string> ExecutorArgs;
 192   public:
 193     CustomExecutor(
 194       const std::string &ExecutionCmd, std::vector<std::string> ExecArgs) :
 195       ExecutionCommand(ExecutionCmd), ExecutorArgs(ExecArgs) {}
 196
 197     virtual int ExecuteProgram(const std::string &Bitcode,
 198                                const std::vector<std::string> &Args,
 199                                const std::string &InputFile,
 200                                const std::string &OutputFile,
 201                                const std::vector<std::string> &GCCArgs,
 202                                const std::vector<std::string> &SharedLibs =
 203                                std::vector<std::string>(),
 204                                unsigned Timeout = 0,
 205                                unsigned MemoryLimit = 0);
 206   };
 207 }
 208
 209 int CustomExecutor::ExecuteProgram(const std::string &Bitcode,
 210                         const std::vector<std::string> &Args,
 211                         const std::string &InputFile,
 212                         const std::string &OutputFile,
 213                         const std::vector<std::string> &GCCArgs,
 214                         const std::vector<std::string> &SharedLibs,
 215                         unsigned Timeout,
 216                         unsigned MemoryLimit) {
 217
 218   std::vector<const char*> ProgramArgs;
 219   ProgramArgs.push_back(ExecutionCommand.c_str());
 220
 221   for (std::size_t i = 0; i < ExecutorArgs.size(); ++i)
 222     ProgramArgs.push_back(ExecutorArgs.at(i).c_str());
 223   ProgramArgs.push_back(Bitcode.c_str());
 224   ProgramArgs.push_back(0);
 225
 226   // Add optional parameters to the running program from Argv
 227   for (unsigned i=0, e = Args.size(); i != e; ++i)
 228     ProgramArgs.push_back(Args[i].c_str());
 229
 230   return RunProgramWithTimeout(
 231     sys::Path(ExecutionCommand),
 232     &ProgramArgs[0], sys::Path(InputFile), sys::Path(OutputFile),
 233     sys::Path(OutputFile), Timeout, MemoryLimit);
 234 }
 235
 236 // Custom execution environment create method, takes the execution command
 237 // as arguments
 238 AbstractInterpreter *AbstractInterpreter::createCustom(
 239                     const std::string &ProgramPath,
 240                     std::string &Message,
 241                     const std::string &ExecCommandLine) {
 242
 243   std::string Command = "";
 244   std::vector<std::string> Args;
 245   std::string delimiters = " ";
 246
 247   // Tokenize the ExecCommandLine to the command and the args to allow
 248   // defining a full command line as the command instead of just the
 249   // executed program. We cannot just pass the whole string after the command
 250   // as a single argument because then program sees only a single
 251   // command line argument (with spaces in it: "foo bar" instead
 252   // of "foo" and "bar").
 253
 254   // code borrowed from:
 255   // http://oopweb.com/CPP/Documents/CPPHOWTO/Volume/C++Programming-HOWTO-7.html
 256   std::string::size_type lastPos =
 257     ExecCommandLine.find_first_not_of(delimiters, 0);
 258   std::string::size_type pos =
 259     ExecCommandLine.find_first_of(delimiters, lastPos);
 260
 261   while (std::string::npos != pos || std::string::npos != lastPos) {
 262     std::string token = ExecCommandLine.substr(lastPos, pos - lastPos);
 263     if (Command == "")
 264        Command = token;
 265     else
 266        Args.push_back(token);
 267     // Skip delimiters.  Note the "not_of"
 268     lastPos = ExecCommandLine.find_first_not_of(delimiters, pos);
 269     // Find next "non-delimiter"
 270     pos = ExecCommandLine.find_first_of(delimiters, lastPos);
 271   }
 272
 273   std::string CmdPath = FindExecutable(Command, ProgramPath).toString();
 274   if (CmdPath.empty()) {
 275     Message =
 276       std::string("Cannot find '") + Command +
 277       "' in executable directory or PATH!\n";
 278     return 0;
 279   }
 280
 281   Message = "Found command in: " + CmdPath + "\n";
 282
 283   return new CustomExecutor(CmdPath, Args);
 284 }
 285
 286 //===----------------------------------------------------------------------===//
 287 // LLC Implementation of AbstractIntepreter interface
 288 //
 289 GCC::FileType LLC::OutputCode(const std::string &Bitcode,
 290                               sys::Path &OutputAsmFile) {
 291   sys::Path uniqueFile(Bitcode+".llc.s");
 292   std::string ErrMsg;
 293   if (uniqueFile.makeUnique(true, &ErrMsg)) {
 294     std::cerr << "Error making unique filename: " << ErrMsg << "\n";
 295     exit(1);
 296   }
 297   OutputAsmFile = uniqueFile;
 298   std::vector<const char *> LLCArgs;
 299   LLCArgs.push_back (LLCPath.c_str());
 300
 301   // Add any extra LLC args.
 302   for (unsigned i = 0, e = ToolArgs.size(); i != e; ++i)
 303     LLCArgs.push_back(ToolArgs[i].c_str());
 304
 305   LLCArgs.push_back ("-o");
 306   LLCArgs.push_back (OutputAsmFile.c_str()); // Output to the Asm file
 307   LLCArgs.push_back ("-f");                  // Overwrite as necessary...
 308   LLCArgs.push_back (Bitcode.c_str());      // This is the input bitcode
 309   LLCArgs.push_back (0);
 310
 311   std::cout << "<llc>" << std::flush;
 312   DEBUG(std::cerr << "\nAbout to run:\t";
 313         for (unsigned i=0, e = LLCArgs.size()-1; i != e; ++i)
 314           std::cerr << " " << LLCArgs[i];
 315         std::cerr << "\n";
 316         );
 317   if (RunProgramWithTimeout(sys::Path(LLCPath), &LLCArgs[0],
 318                             sys::Path(), sys::Path(), sys::Path()))
 319     ProcessFailure(sys::Path(LLCPath), &LLCArgs[0]);
 320
 321   return GCC::AsmFile;
 322 }
 323
 324 void LLC::compileProgram(const std::string &Bitcode) {
 325   sys::Path OutputAsmFile;
 326   OutputCode(Bitcode, OutputAsmFile);
 327   OutputAsmFile.eraseFromDisk();
 328 }
 329
 330 int LLC::ExecuteProgram(const std::string &Bitcode,
 331                         const std::vector<std::string> &Args,
 332                         const std::string &InputFile,
 333                         const std::string &OutputFile,
 334                         const std::vector<std::string> &ArgsForGCC,
 335                         const std::vector<std::string> &SharedLibs,
 336                         unsigned Timeout,
 337                         unsigned MemoryLimit) {
 338
 339   sys::Path OutputAsmFile;
 340   OutputCode(Bitcode, OutputAsmFile);
 341   FileRemover OutFileRemover(OutputAsmFile);
 342
 343   std::vector<std::string> GCCArgs(ArgsForGCC);
 344   GCCArgs.insert(GCCArgs.end(), SharedLibs.begin(), SharedLibs.end());
 345   GCCArgs.insert(GCCArgs.end(), gccArgs.begin(), gccArgs.end());
 346
 347   // Assuming LLC worked, compile the result with GCC and run it.
 348   return gcc->ExecuteProgram(OutputAsmFile.toString(), Args, GCC::AsmFile,
 349                              InputFile, OutputFile, GCCArgs,
 350                              Timeout, MemoryLimit);
 351 }
 352
 353 /// createLLC - Try to find the LLC executable
 354 ///
 355 LLC *AbstractInterpreter::createLLC(const std::string &ProgramPath,
 356                                     std::string &Message,
 357                                     const std::vector<std::string> *Args,
 358                                     const std::vector<std::string> *GCCArgs) {
 359   std::string LLCPath = FindExecutable("llc", ProgramPath).toString();
 360   if (LLCPath.empty()) {
 361     Message = "Cannot find `llc' in executable directory or PATH!\n";
 362     return 0;
 363   }
 364
 365   Message = "Found llc: " + LLCPath + "\n";
 366   GCC *gcc = GCC::create(ProgramPath, Message, GCCArgs);
 367   if (!gcc) {
 368     std::cerr << Message << "\n";
 369     exit(1);
 370   }
 371   return new LLC(LLCPath, gcc, Args, GCCArgs);
 372 }
 373
 374 //===---------------------------------------------------------------------===//
 375 // JIT Implementation of AbstractIntepreter interface
 376 //
 377 namespace {
 378   class JIT : public AbstractInterpreter {
 379     std::string LLIPath;          // The path to the LLI executable
 380     std::vector<std::string> ToolArgs; // Args to pass to LLI
 381   public:
 382     JIT(const std::string &Path, const std::vector<std::string> *Args)
 383       : LLIPath(Path) {
 384       ToolArgs.clear ();
 385       if (Args) { ToolArgs = *Args; }
 386     }
 387
 388     virtual int ExecuteProgram(const std::string &Bitcode,
 389                                const std::vector<std::string> &Args,
 390                                const std::string &InputFile,
 391                                const std::string &OutputFile,
 392                                const std::vector<std::string> &GCCArgs =
 393                                  std::vector<std::string>(),
 394                                const std::vector<std::string> &SharedLibs =
 395                                  std::vector<std::string>(),
 396                                unsigned Timeout =0,
 397                                unsigned MemoryLimit =0);
 398   };
 399 }
 400
 401 int JIT::ExecuteProgram(const std::string &Bitcode,
 402                         const std::vector<std::string> &Args,
 403                         const std::string &InputFile,
 404                         const std::string &OutputFile,
 405                         const std::vector<std::string> &GCCArgs,
 406                         const std::vector<std::string> &SharedLibs,
 407                         unsigned Timeout,
 408                         unsigned MemoryLimit) {
 409   // Construct a vector of parameters, incorporating those from the command-line
 410   std::vector<const char*> JITArgs;
 411   JITArgs.push_back(LLIPath.c_str());
 412   JITArgs.push_back("-force-interpreter=false");
 413
 414   // Add any extra LLI args.
 415   for (unsigned i = 0, e = ToolArgs.size(); i != e; ++i)
 416     JITArgs.push_back(ToolArgs[i].c_str());
 417
 418   for (unsigned i = 0, e = SharedLibs.size(); i != e; ++i) {
 419     JITArgs.push_back("-load");
 420     JITArgs.push_back(SharedLibs[i].c_str());
 421   }
 422   JITArgs.push_back(Bitcode.c_str());
 423   // Add optional parameters to the running program from Argv
 424   for (unsigned i=0, e = Args.size(); i != e; ++i)
 425     JITArgs.push_back(Args[i].c_str());
 426   JITArgs.push_back(0);
 427
 428   std::cout << "<jit>" << std::flush;
 429   DEBUG(std::cerr << "\nAbout to run:\t";
 430         for (unsigned i=0, e = JITArgs.size()-1; i != e; ++i)
 431           std::cerr << " " << JITArgs[i];
 432         std::cerr << "\n";
 433         );
 434   DEBUG(std::cerr << "\nSending output to " << OutputFile << "\n");
 435   return RunProgramWithTimeout(sys::Path(LLIPath), &JITArgs[0],
 436       sys::Path(InputFile), sys::Path(OutputFile), sys::Path(OutputFile),
 437       Timeout, MemoryLimit);
 438 }
 439
 440 /// createJIT - Try to find the LLI executable
 441 ///
 442 AbstractInterpreter *AbstractInterpreter::createJIT(const std::string &ProgPath,
 443                    std::string &Message, const std::vector<std::string> *Args) {
 444   std::string LLIPath = FindExecutable("lli", ProgPath).toString();
 445   if (!LLIPath.empty()) {
 446     Message = "Found lli: " + LLIPath + "\n";
 447     return new JIT(LLIPath, Args);
 448   }
 449
 450   Message = "Cannot find `lli' in executable directory or PATH!\n";
 451   return 0;
 452 }
 453
 454 GCC::FileType CBE::OutputCode(const std::string &Bitcode,
 455                               sys::Path &OutputCFile) {
 456   sys::Path uniqueFile(Bitcode+".cbe.c");
 457   std::string ErrMsg;
 458   if (uniqueFile.makeUnique(true, &ErrMsg)) {
 459     std::cerr << "Error making unique filename: " << ErrMsg << "\n";
 460     exit(1);
 461   }
 462   OutputCFile = uniqueFile;
 463   std::vector<const char *> LLCArgs;
 464   LLCArgs.push_back (LLCPath.c_str());
 465
 466   // Add any extra LLC args.
 467   for (unsigned i = 0, e = ToolArgs.size(); i != e; ++i)
 468     LLCArgs.push_back(ToolArgs[i].c_str());
 469
 470   LLCArgs.push_back ("-o");
 471   LLCArgs.push_back (OutputCFile.c_str());   // Output to the C file
 472   LLCArgs.push_back ("-march=c");            // Output C language
 473   LLCArgs.push_back ("-f");                  // Overwrite as necessary...
 474   LLCArgs.push_back (Bitcode.c_str());      // This is the input bitcode
 475   LLCArgs.push_back (0);
 476
 477   std::cout << "<cbe>" << std::flush;
 478   DEBUG(std::cerr << "\nAbout to run:\t";
 479         for (unsigned i=0, e = LLCArgs.size()-1; i != e; ++i)
 480           std::cerr << " " << LLCArgs[i];
 481         std::cerr << "\n";
 482         );
 483   if (RunProgramWithTimeout(LLCPath, &LLCArgs[0], sys::Path(), sys::Path(),
 484                             sys::Path()))
 485     ProcessFailure(LLCPath, &LLCArgs[0]);
 486   return GCC::CFile;
 487 }
 488
 489 void CBE::compileProgram(const std::string &Bitcode) {
 490   sys::Path OutputCFile;
 491   OutputCode(Bitcode, OutputCFile);
 492   OutputCFile.eraseFromDisk();
 493 }
 494
 495 int CBE::ExecuteProgram(const std::string &Bitcode,
 496                         const std::vector<std::string> &Args,
 497                         const std::string &InputFile,
 498                         const std::string &OutputFile,
 499                         const std::vector<std::string> &ArgsForGCC,
 500                         const std::vector<std::string> &SharedLibs,
 501                         unsigned Timeout,
 502                         unsigned MemoryLimit) {
 503   sys::Path OutputCFile;
 504   OutputCode(Bitcode, OutputCFile);
 505
 506   FileRemover CFileRemove(OutputCFile);
 507
 508   std::vector<std::string> GCCArgs(ArgsForGCC);
 509   GCCArgs.insert(GCCArgs.end(), SharedLibs.begin(), SharedLibs.end());
 510
 511   return gcc->ExecuteProgram(OutputCFile.toString(), Args, GCC::CFile,
 512                              InputFile, OutputFile, GCCArgs,
 513                              Timeout, MemoryLimit);
 514 }
 515
 516 /// createCBE - Try to find the 'llc' executable
 517 ///
 518 CBE *AbstractInterpreter::createCBE(const std::string &ProgramPath,
 519                                     std::string &Message,
 520                                     const std::vector<std::string> *Args,
 521                                     const std::vector<std::string> *GCCArgs) {
 522   sys::Path LLCPath = FindExecutable("llc", ProgramPath);
 523   if (LLCPath.isEmpty()) {
 524     Message =
 525       "Cannot find `llc' in executable directory or PATH!\n";
 526     return 0;
 527   }
 528
 529   Message = "Found llc: " + LLCPath.toString() + "\n";
 530   GCC *gcc = GCC::create(ProgramPath, Message, GCCArgs);
 531   if (!gcc) {
 532     std::cerr << Message << "\n";
 533     exit(1);
 534   }
 535   return new CBE(LLCPath, gcc, Args);
 536 }
 537
 538 //===---------------------------------------------------------------------===//
 539 // GCC abstraction
 540 //
 541 int GCC::ExecuteProgram(const std::string &ProgramFile,
 542                         const std::vector<std::string> &Args,
 543                         FileType fileType,
 544                         const std::string &InputFile,
 545                         const std::string &OutputFile,
 546                         const std::vector<std::string> &ArgsForGCC,
 547                         unsigned Timeout,
 548                         unsigned MemoryLimit) {
 549   std::vector<const char*> GCCArgs;
 550
 551   GCCArgs.push_back(GCCPath.c_str());
 552
 553   for (std::vector<std::string>::const_iterator
 554          I = gccArgs.begin(), E = gccArgs.end(); I != E; ++I)
 555     GCCArgs.push_back(I->c_str());
 556
 557   // Specify -x explicitly in case the extension is wonky
 558   GCCArgs.push_back("-x");
 559   if (fileType == CFile) {
 560     GCCArgs.push_back("c");
 561     GCCArgs.push_back("-fno-strict-aliasing");
 562   } else {
 563     GCCArgs.push_back("assembler");
 564 #ifdef __APPLE__
 565     GCCArgs.push_back("-force_cpusubtype_ALL");
 566 #endif
 567   }
 568   GCCArgs.push_back(ProgramFile.c_str());  // Specify the input filename...
 569   GCCArgs.push_back("-x");
 570   GCCArgs.push_back("none");
 571   GCCArgs.push_back("-o");
 572   sys::Path OutputBinary (ProgramFile+".gcc.exe");
 573   std::string ErrMsg;
 574   if (OutputBinary.makeUnique(true, &ErrMsg)) {
 575     std::cerr << "Error making unique filename: " << ErrMsg << "\n";
 576     exit(1);
 577   }
 578   GCCArgs.push_back(OutputBinary.c_str()); // Output to the right file...
 579
 580   // Add any arguments intended for GCC. We locate them here because this is
 581   // most likely -L and -l options that need to come before other libraries but
 582   // after the source. Other options won't be sensitive to placement on the
 583   // command line, so this should be safe.
 584   for (unsigned i = 0, e = ArgsForGCC.size(); i != e; ++i)
 585     GCCArgs.push_back(ArgsForGCC[i].c_str());
 586
 587   GCCArgs.push_back("-lm");                // Hard-code the math library...
 588   GCCArgs.push_back("-O2");                // Optimize the program a bit...
 589 #if defined (HAVE_LINK_R)
 590   GCCArgs.push_back("-Wl,-R.");            // Search this dir for .so files
 591 #endif
 592 #ifdef __sparc__
 593   GCCArgs.push_back("-mcpu=v9");
 594 #endif
 595   GCCArgs.push_back(0);                    // NULL terminator
 596
 597   std::cout << "<gcc>" << std::flush;
 598   DEBUG(std::cerr << "\nAbout to run:\t";
 599         for (unsigned i=0, e = GCCArgs.size()-1; i != e; ++i)
 600           std::cerr << " " << GCCArgs[i];
 601         std::cerr << "\n";
 602         );
 603   if (RunProgramWithTimeout(GCCPath, &GCCArgs[0], sys::Path(), sys::Path(),
 604         sys::Path())) {
 605     ProcessFailure(GCCPath, &GCCArgs[0]);
 606     exit(1);
 607   }
 608
 609   std::vector<const char*> ProgramArgs;
 610
 611   if (RemoteClientPath.isEmpty())
 612     ProgramArgs.push_back(OutputBinary.c_str());
 613   else {
 614     ProgramArgs.push_back(RemoteClientPath.c_str());
 615     ProgramArgs.push_back(RemoteHost.c_str());
 616     ProgramArgs.push_back("-l");
 617     ProgramArgs.push_back(RemoteUser.c_str());
 618     if (!RemoteExtra.empty()) {
 619       ProgramArgs.push_back(RemoteExtra.c_str());
 620     }
 621
 622     char* env_pwd = getenv("PWD");
 623     std::string Exec = "cd ";
 624     Exec += env_pwd;
 625     Exec += "; ./";
 626     Exec += OutputBinary.c_str();
 627     ProgramArgs.push_back(Exec.c_str());
 628   }
 629
 630   // Add optional parameters to the running program from Argv
 631   for (unsigned i=0, e = Args.size(); i != e; ++i)
 632     ProgramArgs.push_back(Args[i].c_str());
 633   ProgramArgs.push_back(0);                // NULL terminator
 634
 635   // Now that we have a binary, run it!
 636   std::cout << "<program>" << std::flush;
 637   DEBUG(std::cerr << "\nAbout to run:\t";
 638         for (unsigned i=0, e = ProgramArgs.size()-1; i != e; ++i)
 639           std::cerr << " " << ProgramArgs[i];
 640         std::cerr << "\n";
 641         );
 642
 643   FileRemover OutputBinaryRemover(OutputBinary);
 644
 645   if (RemoteClientPath.isEmpty())
 646     return RunProgramWithTimeout(OutputBinary, &ProgramArgs[0],
 647         sys::Path(InputFile), sys::Path(OutputFile), sys::Path(OutputFile),
 648         Timeout, MemoryLimit);
 649   else
 650     return RunProgramWithTimeout(sys::Path(RemoteClientPath), &ProgramArgs[0],
 651         sys::Path(InputFile), sys::Path(OutputFile), sys::Path(OutputFile),
 652         Timeout, MemoryLimit);
 653 }
 654
 655 int GCC::MakeSharedObject(const std::string &InputFile, FileType fileType,
 656                           std::string &OutputFile,
 657                           const std::vector<std::string> &ArgsForGCC) {
 658   sys::Path uniqueFilename(InputFile+LTDL_SHLIB_EXT);
 659   std::string ErrMsg;
 660   if (uniqueFilename.makeUnique(true, &ErrMsg)) {
 661     std::cerr << "Error making unique filename: " << ErrMsg << "\n";
 662     exit(1);
 663   }
 664   OutputFile = uniqueFilename.toString();
 665
 666   std::vector<const char*> GCCArgs;
 667
 668   GCCArgs.push_back(GCCPath.c_str());
 669
 670   for (std::vector<std::string>::const_iterator
 671          I = gccArgs.begin(), E = gccArgs.end(); I != E; ++I)
 672     GCCArgs.push_back(I->c_str());
 673
 674   // Compile the C/asm file into a shared object
 675   GCCArgs.push_back("-x");
 676   GCCArgs.push_back(fileType == AsmFile ? "assembler" : "c");
 677   GCCArgs.push_back("-fno-strict-aliasing");
 678   GCCArgs.push_back(InputFile.c_str());   // Specify the input filename.
 679   GCCArgs.push_back("-x");
 680   GCCArgs.push_back("none");
 681 #if defined(sparc) || defined(__sparc__) || defined(__sparcv9)
 682   GCCArgs.push_back("-G");       // Compile a shared library, `-G' for Sparc
 683 #elif defined(__APPLE__)
 684   // link all source files into a single module in data segment, rather than
 685   // generating blocks. dynamic_lookup requires that you set
 686   // MACOSX_DEPLOYMENT_TARGET=10.3 in your env.  FIXME: it would be better for
 687   // bugpoint to just pass that in the environment of GCC.
 688   GCCArgs.push_back("-single_module");
 689   GCCArgs.push_back("-dynamiclib");   // `-dynamiclib' for MacOS X/PowerPC
 690   GCCArgs.push_back("-undefined");
 691   GCCArgs.push_back("dynamic_lookup");
 692 #else
 693   GCCArgs.push_back("-shared");  // `-shared' for Linux/X86, maybe others
 694 #endif
 695
 696 #if defined(__ia64__) || defined(__alpha__) || defined(__amd64__)
 697   GCCArgs.push_back("-fPIC");   // Requires shared objs to contain PIC
 698 #endif
 699 #ifdef __sparc__
 700   GCCArgs.push_back("-mcpu=v9");
 701 #endif
 702   GCCArgs.push_back("-o");
 703   GCCArgs.push_back(OutputFile.c_str()); // Output to the right filename.
 704   GCCArgs.push_back("-O2");              // Optimize the program a bit.
 705
 706
 707
 708   // Add any arguments intended for GCC. We locate them here because this is
 709   // most likely -L and -l options that need to come before other libraries but
 710   // after the source. Other options won't be sensitive to placement on the
 711   // command line, so this should be safe.
 712   for (unsigned i = 0, e = ArgsForGCC.size(); i != e; ++i)
 713     GCCArgs.push_back(ArgsForGCC[i].c_str());
 714   GCCArgs.push_back(0);                    // NULL terminator
 715
 716
 717
 718   std::cout << "<gcc>" << std::flush;
 719   DEBUG(std::cerr << "\nAbout to run:\t";
 720         for (unsigned i=0, e = GCCArgs.size()-1; i != e; ++i)
 721           std::cerr << " " << GCCArgs[i];
 722         std::cerr << "\n";
 723         );
 724   if (RunProgramWithTimeout(GCCPath, &GCCArgs[0], sys::Path(), sys::Path(),
 725                             sys::Path())) {
 726     ProcessFailure(GCCPath, &GCCArgs[0]);
 727     return 1;
 728   }
 729   return 0;
 730 }
 731
 732 /// create - Try to find the `gcc' executable
 733 ///
 734 GCC *GCC::create(const std::string &ProgramPath, std::string &Message,
 735                  const std::vector<std::string> *Args) {
 736   sys::Path GCCPath = FindExecutable("gcc", ProgramPath);
 737   if (GCCPath.isEmpty()) {
 738     Message = "Cannot find `gcc' in executable directory or PATH!\n";
 739     return 0;
 740   }
 741
 742   sys::Path RemoteClientPath;
 743   if (!RemoteClient.empty())
 744     RemoteClientPath = FindExecutable(RemoteClient.c_str(), ProgramPath);
 745
 746   Message = "Found gcc: " + GCCPath.toString() + "\n";
 747   return new GCC(GCCPath, RemoteClientPath, Args);
 748 }