src/sim/process.cc

   1 /*
   2  * Copyright (c) 2001-2005 The Regents of The University of Michigan
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met: redistributions of source code must retain the above copyright
   8  * notice, this list of conditions and the following disclaimer;
   9  * redistributions in binary form must reproduce the above copyright
  10  * notice, this list of conditions and the following disclaimer in the
  11  * documentation and/or other materials provided with the distribution;
  12  * neither the name of the copyright holders nor the names of its
  13  * contributors may be used to endorse or promote products derived from
  14  * this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  19  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  20  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  *
  28  * Authors: Nathan Binkert
  29  *          Steve Reinhardt
  30  *          Ali Saidi
  31  */
  32
  33 #include <unistd.h>
  34 #include <fcntl.h>
  35 #include <string>
  36
  37 #include "arch/remote_gdb.hh"
  38 #include "base/intmath.hh"
  39 #include "base/loader/object_file.hh"
  40 #include "base/loader/symtab.hh"
  41 #include "base/statistics.hh"
  42 #include "config/full_system.hh"
  43 #include "cpu/thread_context.hh"
  44 #include "mem/page_table.hh"
  45 #include "mem/physical.hh"
  46 #include "mem/translating_port.hh"
  47 #include "params/Process.hh"
  48 #include "params/LiveProcess.hh"
  49 #include "sim/debug.hh"
  50 #include "sim/process.hh"
  51 #include "sim/process_impl.hh"
  52 #include "sim/stats.hh"
  53 #include "sim/syscall_emul.hh"
  54 #include "sim/system.hh"
  55
  56 #include "arch/isa_specific.hh"
  57 #if THE_ISA == ALPHA_ISA
  58 #include "arch/alpha/linux/process.hh"
  59 #include "arch/alpha/tru64/process.hh"
  60 #elif THE_ISA == SPARC_ISA
  61 #include "arch/sparc/linux/process.hh"
  62 #include "arch/sparc/solaris/process.hh"
  63 #elif THE_ISA == MIPS_ISA
  64 #include "arch/mips/linux/process.hh"
  65 #elif THE_ISA == ARM_ISA
  66 #include "arch/arm/linux/process.hh"
  67 #elif THE_ISA == X86_ISA
  68 #include "arch/x86/linux/process.hh"
  69 #else
  70 #error "THE_ISA not set"
  71 #endif
  72
  73
  74 using namespace std;
  75 using namespace TheISA;
  76
  77 //
  78 // The purpose of this code is to fake the loader & syscall mechanism
  79 // when there's no OS: thus there's no resone to use it in FULL_SYSTEM
  80 // mode when we do have an OS
  81 //
  82 #if FULL_SYSTEM
  83 #error "process.cc not compatible with FULL_SYSTEM"
  84 #endif
  85
  86 // current number of allocated processes
  87 int num_processes = 0;
  88
  89 Process::Process(ProcessParams * params)
  90     : SimObject(params), system(params->system), checkpointRestored(false),
  91     max_stack_size(params->max_stack_size)
  92 {
  93     string in = params->input;
  94     string out = params->output;
  95
  96     // initialize file descriptors to default: same as simulator
  97     int stdin_fd, stdout_fd, stderr_fd;
  98
  99     if (in == "stdin" || in == "cin")
 100         stdin_fd = STDIN_FILENO;
 101     else if (in == "None")
 102         stdin_fd = -1;
 103     else
 104         stdin_fd = Process::openInputFile(in);
 105
 106     if (out == "stdout" || out == "cout")
 107         stdout_fd = STDOUT_FILENO;
 108     else if (out == "stderr" || out == "cerr")
 109         stdout_fd = STDERR_FILENO;
 110     else if (out == "None")
 111         stdout_fd = -1;
 112     else
 113         stdout_fd = Process::openOutputFile(out);
 114
 115     stderr_fd = (stdout_fd != STDOUT_FILENO) ? stdout_fd : STDERR_FILENO;
 116
 117     M5_pid = system->allocatePID();
 118     // initialize first 3 fds (stdin, stdout, stderr)
 119     Process::FdMap *fdo = &fd_map[STDIN_FILENO];
 120     fdo->fd = stdin_fd;
 121     fdo->filename = in;
 122     fdo->flags = O_RDONLY;
 123     fdo->mode = -1;
 124     fdo->fileOffset = 0;
 125
 126     fdo =  &fd_map[STDOUT_FILENO];
 127     fdo->fd = stdout_fd;
 128     fdo->filename = out;
 129     fdo->flags =  O_WRONLY | O_CREAT | O_TRUNC;
 130     fdo->mode = 0774;
 131     fdo->fileOffset = 0;
 132
 133     fdo = &fd_map[STDERR_FILENO];
 134     fdo->fd = stderr_fd;
 135     fdo->filename = "STDERR";
 136     fdo->flags = O_WRONLY;
 137     fdo->mode = -1;
 138     fdo->fileOffset = 0;
 139
 140
 141     // mark remaining fds as free
 142     for (int i = 3; i <= MAX_FD; ++i) {
 143         Process::FdMap *fdo = &fd_map[i];
 144         fdo->fd = -1;
 145     }
 146
 147     mmap_start = mmap_end = 0;
 148     nxm_start = nxm_end = 0;
 149     pTable = new PageTable(this);
 150     // other parameters will be initialized when the program is loaded
 151 }
 152
 153
 154 void
 155 Process::regStats()
 156 {
 157     using namespace Stats;
 158
 159     num_syscalls
 160         .name(name() + ".PROG:num_syscalls")
 161         .desc("Number of system calls")
 162         ;
 163 }
 164
 165 //
 166 // static helper functions
 167 //
 168 int
 169 Process::openInputFile(const string &filename)
 170 {
 171     int fd = open(filename.c_str(), O_RDONLY);
 172
 173     if (fd == -1) {
 174         perror(NULL);
 175         cerr << "unable to open \"" << filename << "\" for reading\n";
 176         fatal("can't open input file");
 177     }
 178
 179     return fd;
 180 }
 181
 182
 183 int
 184 Process::openOutputFile(const string &filename)
 185 {
 186     int fd = open(filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0774);
 187
 188     if (fd == -1) {
 189         perror(NULL);
 190         cerr << "unable to open \"" << filename << "\" for writing\n";
 191         fatal("can't open output file");
 192     }
 193
 194     return fd;
 195 }
 196
 197
 198 int
 199 Process::registerThreadContext(ThreadContext *tc)
 200 {
 201     // add to list
 202     int myIndex = threadContexts.size();
 203     threadContexts.push_back(tc);
 204
 205     int port = getRemoteGDBPort();
 206     if (port) {
 207         RemoteGDB *rgdb = new RemoteGDB(system, tc);
 208         GDBListener *gdbl = new GDBListener(rgdb, port + myIndex);
 209         gdbl->listen();
 210
 211         remoteGDB.push_back(rgdb);
 212     }
 213
 214     // return CPU number to caller
 215     return myIndex;
 216 }
 217
 218 void
 219 Process::startup()
 220 {
 221     if (threadContexts.empty())
 222         fatal("Process %s is not associated with any CPUs!\n", name());
 223
 224     // first thread context for this process... initialize & enable
 225     ThreadContext *tc = threadContexts[0];
 226
 227     // mark this context as active so it will start ticking.
 228     tc->activate(0);
 229
 230     Port *mem_port;
 231     mem_port = system->physmem->getPort("functional");
 232     initVirtMem = new TranslatingPort("process init port", this,
 233             TranslatingPort::Always);
 234     mem_port->setPeer(initVirtMem);
 235     initVirtMem->setPeer(mem_port);
 236 }
 237
 238 void
 239 Process::replaceThreadContext(ThreadContext *tc, int tcIndex)
 240 {
 241     if (tcIndex >= threadContexts.size()) {
 242         panic("replaceThreadContext: bad tcIndex, %d >= %d\n",
 243               tcIndex, threadContexts.size());
 244     }
 245
 246     threadContexts[tcIndex] = tc;
 247 }
 248
 249 // map simulator fd sim_fd to target fd tgt_fd
 250 void
 251 Process::dup_fd(int sim_fd, int tgt_fd)
 252 {
 253     if (tgt_fd < 0 || tgt_fd > MAX_FD)
 254         panic("Process::dup_fd tried to dup past MAX_FD (%d)", tgt_fd);
 255
 256     Process::FdMap *fdo = &fd_map[tgt_fd];
 257     fdo->fd = sim_fd;
 258 }
 259
 260
 261 // generate new target fd for sim_fd
 262 int
 263 Process::alloc_fd(int sim_fd, string filename, int flags, int mode, bool pipe)
 264 {
 265     // in case open() returns an error, don't allocate a new fd
 266     if (sim_fd == -1)
 267         return -1;
 268
 269     // find first free target fd
 270     for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) {
 271         Process::FdMap *fdo = &fd_map[free_fd];
 272         if (fdo->fd == -1) {
 273             fdo->fd = sim_fd;
 274             fdo->filename = filename;
 275             fdo->mode = mode;
 276             fdo->fileOffset = 0;
 277             fdo->flags = flags;
 278             fdo->isPipe = pipe;
 279             fdo->readPipeSource = 0;
 280             return free_fd;
 281         }
 282     }
 283
 284     panic("Process::alloc_fd: out of file descriptors!");
 285 }
 286
 287
 288 // free target fd (e.g., after close)
 289 void
 290 Process::free_fd(int tgt_fd)
 291 {
 292     Process::FdMap *fdo = &fd_map[tgt_fd];
 293     if (fdo->fd == -1)
 294         warn("Process::free_fd: request to free unused fd %d", tgt_fd);
 295
 296     fdo->fd = -1;
 297     fdo->filename = "NULL";
 298     fdo->mode = 0;
 299     fdo->fileOffset = 0;
 300     fdo->flags = 0;
 301     fdo->isPipe = false;
 302     fdo->readPipeSource = 0;
 303 }
 304
 305
 306 // look up simulator fd for given target fd
 307 int
 308 Process::sim_fd(int tgt_fd)
 309 {
 310     if (tgt_fd > MAX_FD)
 311         return -1;
 312
 313     return fd_map[tgt_fd].fd;
 314 }
 315
 316 Process::FdMap *
 317 Process::sim_fd_obj(int tgt_fd)
 318 {
 319     if (tgt_fd > MAX_FD)
 320         panic("sim_fd_obj called in fd out of range.");
 321
 322     return &fd_map[tgt_fd];
 323 }
 324 bool
 325 Process::checkAndAllocNextPage(Addr vaddr)
 326 {
 327     // if this is an initial write we might not have
 328     if (vaddr >= stack_min && vaddr < stack_base) {
 329         pTable->allocate(roundDown(vaddr, VMPageSize), VMPageSize);
 330         return true;
 331     }
 332
 333     // We've accessed the next page of the stack, so extend the stack
 334     // to cover it.
 335     if (vaddr < stack_min && vaddr >= stack_base - max_stack_size) {
 336         while (vaddr < stack_min) {
 337             stack_min -= TheISA::PageBytes;
 338             if(stack_base - stack_min > max_stack_size)
 339                 fatal("Maximum stack size exceeded\n");
 340             if(stack_base - stack_min > 8*1024*1024)
 341                 fatal("Over max stack size for one thread\n");
 342             pTable->allocate(stack_min, TheISA::PageBytes);
 343             warn("Increasing stack size by one page.");
 344         };
 345         return true;
 346     }
 347     return false;
 348 }
 349
 350  // find all offsets for currently open files and save them
 351 void
 352 Process::fix_file_offsets() {
 353     Process::FdMap *fdo_stdin = &fd_map[STDIN_FILENO];
 354     Process::FdMap *fdo_stdout = &fd_map[STDOUT_FILENO];
 355     Process::FdMap *fdo_stderr = &fd_map[STDERR_FILENO];
 356     string in = fdo_stdin->filename;
 357     string out = fdo_stdout->filename;
 358
 359     // initialize file descriptors to default: same as simulator
 360     int stdin_fd, stdout_fd, stderr_fd;
 361
 362     if (in == "stdin" || in == "cin")
 363         stdin_fd = STDIN_FILENO;
 364     else if (in == "None")
 365         stdin_fd = -1;
 366     else{
 367         //OPEN standard in and seek to the right location
 368         stdin_fd = Process::openInputFile(in);
 369         if (lseek(stdin_fd, fdo_stdin->fileOffset, SEEK_SET) < 0)
 370             panic("Unable to seek to correct location in file: %s", in);
 371     }
 372
 373     if (out == "stdout" || out == "cout")
 374         stdout_fd = STDOUT_FILENO;
 375     else if (out == "stderr" || out == "cerr")
 376         stdout_fd = STDERR_FILENO;
 377     else if (out == "None")
 378         stdout_fd = -1;
 379     else{
 380         stdout_fd = Process::openOutputFile(out);
 381         if (lseek(stdin_fd, fdo_stdout->fileOffset, SEEK_SET) < 0)
 382             panic("Unable to seek to correct in file: %s", out);
 383     }
 384
 385     stderr_fd = (stdout_fd != STDOUT_FILENO) ? stdout_fd : STDERR_FILENO;
 386
 387     fdo_stdin->fd = stdin_fd;
 388     fdo_stdout->fd = stdout_fd;
 389     fdo_stderr->fd = stderr_fd;
 390
 391
 392     for (int free_fd = 3; free_fd <= MAX_FD; ++free_fd) {
 393         Process::FdMap *fdo = &fd_map[free_fd];
 394         if (fdo->fd != -1) {
 395             if (fdo->isPipe){
 396                 if (fdo->filename == "PIPE-WRITE")
 397                     continue;
 398                 else {
 399                     assert (fdo->filename == "PIPE-READ");
 400                     //create a new pipe
 401                     int fds[2];
 402                     int pipe_retval = pipe(fds);
 403
 404                     if (pipe_retval < 0) {
 405                         // error
 406                         panic("Unable to create new pipe.");
 407                     }
 408                     fdo->fd = fds[0]; //set read pipe
 409                     Process::FdMap *fdo_write = &fd_map[fdo->readPipeSource];
 410                     if (fdo_write->filename != "PIPE-WRITE")
 411                         panic ("Couldn't find write end of the pipe");
 412
 413                     fdo_write->fd = fds[1];//set write pipe
 414                }
 415             } else {
 416                 //Open file
 417                 int fd = open(fdo->filename.c_str(), fdo->flags, fdo->mode);
 418
 419                 if (fd == -1)
 420                     panic("Unable to open file: %s", fdo->filename);
 421                 fdo->fd = fd;
 422
 423                 //Seek to correct location before checkpoint
 424                 if (lseek(fd,fdo->fileOffset, SEEK_SET) < 0)
 425                     panic("Unable to seek to correct location in file: %s", fdo->filename);
 426             }
 427         }
 428     }
 429 }
 430 void
 431 Process::find_file_offsets(){
 432     for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) {
 433         Process::FdMap *fdo = &fd_map[free_fd];
 434         if (fdo->fd != -1) {
 435             fdo->fileOffset = lseek(fdo->fd, 0, SEEK_CUR);
 436         }  else {
 437                 fdo->filename = "NULL";
 438                 fdo->fileOffset = 0;
 439         }
 440     }
 441 }
 442
 443 void
 444 Process::setReadPipeSource(int read_pipe_fd, int source_fd){
 445     Process::FdMap *fdo = &fd_map[read_pipe_fd];
 446     fdo->readPipeSource = source_fd;
 447 }
 448
 449 void
 450 Process::FdMap::serialize(std::ostream &os)
 451 {
 452     SERIALIZE_SCALAR(fd);
 453     SERIALIZE_SCALAR(isPipe);
 454     SERIALIZE_SCALAR(filename);
 455     SERIALIZE_SCALAR(flags);
 456     SERIALIZE_SCALAR(readPipeSource);
 457     SERIALIZE_SCALAR(fileOffset);
 458 }
 459
 460 void
 461 Process::FdMap::unserialize(Checkpoint *cp, const std::string &section)
 462 {
 463     UNSERIALIZE_SCALAR(fd);
 464     UNSERIALIZE_SCALAR(isPipe);
 465     UNSERIALIZE_SCALAR(filename);
 466     UNSERIALIZE_SCALAR(flags);
 467     UNSERIALIZE_SCALAR(readPipeSource);
 468     UNSERIALIZE_SCALAR(fileOffset);
 469 }
 470
 471 void
 472 Process::serialize(std::ostream &os)
 473 {
 474     SERIALIZE_SCALAR(initialContextLoaded);
 475     SERIALIZE_SCALAR(brk_point);
 476     SERIALIZE_SCALAR(stack_base);
 477     SERIALIZE_SCALAR(stack_size);
 478     SERIALIZE_SCALAR(stack_min);
 479     SERIALIZE_SCALAR(next_thread_stack_base);
 480     SERIALIZE_SCALAR(mmap_start);
 481     SERIALIZE_SCALAR(mmap_end);
 482     SERIALIZE_SCALAR(nxm_start);
 483     SERIALIZE_SCALAR(nxm_end);
 484     find_file_offsets();
 485     pTable->serialize(os);
 486     for (int x = 0; x <= MAX_FD; x++) {
 487         nameOut(os, csprintf("%s.FdMap%d", name(), x));
 488         fd_map[x].serialize(os);
 489     }
 490
 491 }
 492
 493 void
 494 Process::unserialize(Checkpoint *cp, const std::string &section)
 495 {
 496     UNSERIALIZE_SCALAR(initialContextLoaded);
 497     UNSERIALIZE_SCALAR(brk_point);
 498     UNSERIALIZE_SCALAR(stack_base);
 499     UNSERIALIZE_SCALAR(stack_size);
 500     UNSERIALIZE_SCALAR(stack_min);
 501     UNSERIALIZE_SCALAR(next_thread_stack_base);
 502     UNSERIALIZE_SCALAR(mmap_start);
 503     UNSERIALIZE_SCALAR(mmap_end);
 504     UNSERIALIZE_SCALAR(nxm_start);
 505     UNSERIALIZE_SCALAR(nxm_end);
 506     pTable->unserialize(cp, section);
 507     for (int x = 0; x <= MAX_FD; x++) {
 508         fd_map[x].unserialize(cp, csprintf("%s.FdMap%d", section, x));
 509      }
 510     fix_file_offsets();
 511
 512     checkpointRestored = true;
 513
 514 }
 515
 516
 517 ////////////////////////////////////////////////////////////////////////
 518 //
 519 // LiveProcess member definitions
 520 //
 521 ////////////////////////////////////////////////////////////////////////
 522
 523
 524 LiveProcess::LiveProcess(LiveProcessParams * params, ObjectFile *_objFile)
 525     : Process(params), objFile(_objFile),
 526       argv(params->cmd), envp(params->env), cwd(params->cwd)
 527 {
 528     __uid = params->uid;
 529     __euid = params->euid;
 530     __gid = params->gid;
 531     __egid = params->egid;
 532     __pid = params->pid;
 533     __ppid = params->ppid;
 534
 535     prog_fname = params->cmd[0];
 536
 537     // load up symbols, if any... these may be used for debugging or
 538     // profiling.
 539     if (!debugSymbolTable) {
 540         debugSymbolTable = new SymbolTable();
 541         if (!objFile->loadGlobalSymbols(debugSymbolTable) ||
 542             !objFile->loadLocalSymbols(debugSymbolTable)) {
 543             // didn't load any symbols
 544             delete debugSymbolTable;
 545             debugSymbolTable = NULL;
 546         }
 547     }
 548 }
 549
 550 void
 551 LiveProcess::argsInit(int intSize, int pageSize)
 552 {
 553     Process::startup();
 554
 555     // load object file into target memory
 556     objFile->loadSections(initVirtMem);
 557
 558     // Calculate how much space we need for arg & env arrays.
 559     int argv_array_size = intSize * (argv.size() + 1);
 560     int envp_array_size = intSize * (envp.size() + 1);
 561     int arg_data_size = 0;
 562     for (int i = 0; i < argv.size(); ++i) {
 563         arg_data_size += argv[i].size() + 1;
 564     }
 565     int env_data_size = 0;
 566     for (int i = 0; i < envp.size(); ++i) {
 567         env_data_size += envp[i].size() + 1;
 568     }
 569
 570     int space_needed =
 571         argv_array_size + envp_array_size + arg_data_size + env_data_size;
 572     if (space_needed < 32*1024)
 573         space_needed = 32*1024;
 574
 575     // set bottom of stack
 576     stack_min = stack_base - space_needed;
 577     // align it
 578     stack_min = roundDown(stack_min, pageSize);
 579     stack_size = stack_base - stack_min;
 580     // map memory
 581     pTable->allocate(stack_min, roundUp(stack_size, pageSize));
 582
 583     // map out initial stack contents
 584     Addr argv_array_base = stack_min + intSize; // room for argc
 585     Addr envp_array_base = argv_array_base + argv_array_size;
 586     Addr arg_data_base = envp_array_base + envp_array_size;
 587     Addr env_data_base = arg_data_base + arg_data_size;
 588
 589     // write contents to stack
 590     uint64_t argc = argv.size();
 591     if (intSize == 8)
 592         argc = htog((uint64_t)argc);
 593     else if (intSize == 4)
 594         argc = htog((uint32_t)argc);
 595     else
 596         panic("Unknown int size");
 597
 598     initVirtMem->writeBlob(stack_min, (uint8_t*)&argc, intSize);
 599
 600     copyStringArray(argv, argv_array_base, arg_data_base, initVirtMem);
 601     copyStringArray(envp, envp_array_base, env_data_base, initVirtMem);
 602
 603     assert(NumArgumentRegs >= 2);
 604     threadContexts[0]->setIntReg(ArgumentReg[0], argc);
 605     threadContexts[0]->setIntReg(ArgumentReg[1], argv_array_base);
 606     threadContexts[0]->setIntReg(StackPointerReg, stack_min);
 607
 608     Addr prog_entry = objFile->entryPoint();
 609     threadContexts[0]->setPC(prog_entry);
 610     threadContexts[0]->setNextPC(prog_entry + sizeof(MachInst));
 611
 612 #if THE_ISA != ALPHA_ISA //e.g. MIPS or Sparc
 613     threadContexts[0]->setNextNPC(prog_entry + (2 * sizeof(MachInst)));
 614 #endif
 615
 616     num_processes++;
 617 }
 618
 619 void
 620 LiveProcess::syscall(int64_t callnum, ThreadContext *tc)
 621 {
 622     num_syscalls++;
 623
 624     SyscallDesc *desc = getDesc(callnum);
 625     if (desc == NULL)
 626         fatal("Syscall %d out of range", callnum);
 627
 628     desc->doSyscall(callnum, this, tc);
 629 }
 630
 631 LiveProcess *
 632 LiveProcess::create(LiveProcessParams * params)
 633 {
 634     LiveProcess *process = NULL;
 635
 636     string executable =
 637         params->executable == "" ? params->cmd[0] : params->executable;
 638     ObjectFile *objFile = createObjectFile(executable);
 639     if (objFile == NULL) {
 640         fatal("Can't load object file %s", executable);
 641     }
 642
 643     if (objFile->isDynamic())
 644        fatal("Object file is a dynamic executable however only static "
 645              "executables are supported!\n       Please recompile your "
 646              "executable as a static binary and try again.\n");
 647
 648 #if THE_ISA == ALPHA_ISA
 649     if (objFile->hasTLS())
 650         fatal("Object file has a TLS section and single threaded TLS is not\n"
 651               "       currently supported for Alpha! Please recompile your "
 652               "executable with \n       a non-TLS toolchain.\n");
 653
 654     if (objFile->getArch() != ObjectFile::Alpha)
 655         fatal("Object file architecture does not match compiled ISA (Alpha).");
 656     switch (objFile->getOpSys()) {
 657       case ObjectFile::Tru64:
 658         process = new AlphaTru64Process(params, objFile);
 659         break;
 660
 661       case ObjectFile::Linux:
 662         process = new AlphaLinuxProcess(params, objFile);
 663         break;
 664
 665       default:
 666         fatal("Unknown/unsupported operating system.");
 667     }
 668 #elif THE_ISA == SPARC_ISA
 669     if (objFile->getArch() != ObjectFile::SPARC64 && objFile->getArch() != ObjectFile::SPARC32)
 670         fatal("Object file architecture does not match compiled ISA (SPARC).");
 671     switch (objFile->getOpSys()) {
 672       case ObjectFile::Linux:
 673         if (objFile->getArch() == ObjectFile::SPARC64) {
 674             process = new Sparc64LinuxProcess(params, objFile);
 675         } else {
 676             process = new Sparc32LinuxProcess(params, objFile);
 677         }
 678         break;
 679
 680
 681       case ObjectFile::Solaris:
 682         process = new SparcSolarisProcess(params, objFile);
 683         break;
 684       default:
 685         fatal("Unknown/unsupported operating system.");
 686     }
 687 #elif THE_ISA == X86_ISA
 688     if (objFile->getArch() != ObjectFile::X86)
 689         fatal("Object file architecture does not match compiled ISA (x86).");
 690     switch (objFile->getOpSys()) {
 691       case ObjectFile::Linux:
 692         process = new X86LinuxProcess(params, objFile);
 693         break;
 694       default:
 695         fatal("Unknown/unsupported operating system.");
 696     }
 697 #elif THE_ISA == MIPS_ISA
 698     if (objFile->getArch() != ObjectFile::Mips)
 699         fatal("Object file architecture does not match compiled ISA (MIPS).");
 700     switch (objFile->getOpSys()) {
 701       case ObjectFile::Linux:
 702         process = new MipsLinuxProcess(params, objFile);
 703         break;
 704
 705       default:
 706         fatal("Unknown/unsupported operating system.");
 707     }
 708 #elif THE_ISA == ARM_ISA
 709     if (objFile->getArch() != ObjectFile::Arm)
 710         fatal("Object file architecture does not match compiled ISA (ARM).");
 711     switch (objFile->getOpSys()) {
 712       case ObjectFile::Linux:
 713         process = new ArmLinuxProcess(params, objFile);
 714         break;
 715
 716       default:
 717         fatal("Unknown/unsupported operating system.");
 718     }
 719 #else
 720 #error "THE_ISA not set"
 721 #endif
 722
 723
 724     if (process == NULL)
 725         fatal("Unknown error creating process object.");
 726     return process;
 727 }
 728
 729 LiveProcess *
 730 LiveProcessParams::create()
 731 {
 732     return LiveProcess::create(this);
 733 }