process.cc revision 8601
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 <fcntl.h> 34#include <unistd.h> 35 36#include <cstdio> 37#include <string> 38 39#include "base/loader/object_file.hh" 40#include "base/loader/symtab.hh" 41#include "base/intmath.hh" 42#include "base/statistics.hh" 43#include "config/full_system.hh" 44#include "config/the_isa.hh" 45#include "cpu/thread_context.hh" 46#include "mem/page_table.hh" 47#include "mem/physical.hh" 48#include "mem/translating_port.hh" 49#include "params/LiveProcess.hh" 50#include "params/Process.hh" 51#include "sim/debug.hh" 52#include "sim/process.hh" 53#include "sim/process_impl.hh" 54#include "sim/stats.hh" 55#include "sim/syscall_emul.hh" 56#include "sim/system.hh" 57 58#if THE_ISA == ALPHA_ISA 59#include "arch/alpha/linux/process.hh" 60#include "arch/alpha/tru64/process.hh" 61#elif THE_ISA == SPARC_ISA 62#include "arch/sparc/linux/process.hh" 63#include "arch/sparc/solaris/process.hh" 64#elif THE_ISA == MIPS_ISA 65#include "arch/mips/linux/process.hh" 66#elif THE_ISA == ARM_ISA 67#include "arch/arm/linux/process.hh" 68#elif THE_ISA == X86_ISA 69#include "arch/x86/linux/process.hh" 70#elif THE_ISA == POWER_ISA 71#include "arch/power/linux/process.hh" 72#else 73#error "THE_ISA not set" 74#endif 75 76 77using namespace std; 78using namespace TheISA; 79 80// 81// The purpose of this code is to fake the loader & syscall mechanism 82// when there's no OS: thus there's no resone to use it in FULL_SYSTEM 83// mode when we do have an OS 84// 85#if FULL_SYSTEM 86#error "process.cc not compatible with FULL_SYSTEM" 87#endif 88 89// current number of allocated processes 90int num_processes = 0; 91 92template<class IntType> 93AuxVector<IntType>::AuxVector(IntType type, IntType val) 94{ 95 a_type = TheISA::htog(type); 96 a_val = TheISA::htog(val); 97} 98 99template class AuxVector<uint32_t>; 100template class AuxVector<uint64_t>; 101 102Process::Process(ProcessParams * params) 103 : SimObject(params), system(params->system), 104 max_stack_size(params->max_stack_size) 105{ 106 string in = params->input; 107 string out = params->output; 108 string err = params->errout; 109 110 // initialize file descriptors to default: same as simulator 111 int stdin_fd, stdout_fd, stderr_fd; 112 113 if (in == "stdin" || in == "cin") 114 stdin_fd = STDIN_FILENO; 115 else if (in == "None") 116 stdin_fd = -1; 117 else 118 stdin_fd = Process::openInputFile(in); 119 120 if (out == "stdout" || out == "cout") 121 stdout_fd = STDOUT_FILENO; 122 else if (out == "stderr" || out == "cerr") 123 stdout_fd = STDERR_FILENO; 124 else if (out == "None") 125 stdout_fd = -1; 126 else 127 stdout_fd = Process::openOutputFile(out); 128 129 if (err == "stdout" || err == "cout") 130 stderr_fd = STDOUT_FILENO; 131 else if (err == "stderr" || err == "cerr") 132 stderr_fd = STDERR_FILENO; 133 else if (err == "None") 134 stderr_fd = -1; 135 else if (err == out) 136 stderr_fd = stdout_fd; 137 else 138 stderr_fd = Process::openOutputFile(err); 139 140 M5_pid = system->allocatePID(); 141 // initialize first 3 fds (stdin, stdout, stderr) 142 Process::FdMap *fdo = &fd_map[STDIN_FILENO]; 143 fdo->fd = stdin_fd; 144 fdo->filename = in; 145 fdo->flags = O_RDONLY; 146 fdo->mode = -1; 147 fdo->fileOffset = 0; 148 149 fdo = &fd_map[STDOUT_FILENO]; 150 fdo->fd = stdout_fd; 151 fdo->filename = out; 152 fdo->flags = O_WRONLY | O_CREAT | O_TRUNC; 153 fdo->mode = 0774; 154 fdo->fileOffset = 0; 155 156 fdo = &fd_map[STDERR_FILENO]; 157 fdo->fd = stderr_fd; 158 fdo->filename = err; 159 fdo->flags = O_WRONLY; 160 fdo->mode = -1; 161 fdo->fileOffset = 0; 162 163 164 // mark remaining fds as free 165 for (int i = 3; i <= MAX_FD; ++i) { 166 Process::FdMap *fdo = &fd_map[i]; 167 fdo->fd = -1; 168 } 169 170 mmap_start = mmap_end = 0; 171 nxm_start = nxm_end = 0; 172 pTable = new PageTable(name(), M5_pid); 173 // other parameters will be initialized when the program is loaded 174} 175 176 177void 178Process::regStats() 179{ 180 using namespace Stats; 181 182 num_syscalls 183 .name(name() + ".num_syscalls") 184 .desc("Number of system calls") 185 ; 186} 187 188// 189// static helper functions 190// 191int 192Process::openInputFile(const string &filename) 193{ 194 int fd = open(filename.c_str(), O_RDONLY); 195 196 if (fd == -1) { 197 perror(NULL); 198 cerr << "unable to open \"" << filename << "\" for reading\n"; 199 fatal("can't open input file"); 200 } 201 202 return fd; 203} 204 205 206int 207Process::openOutputFile(const string &filename) 208{ 209 int fd = open(filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0664); 210 211 if (fd == -1) { 212 perror(NULL); 213 cerr << "unable to open \"" << filename << "\" for writing\n"; 214 fatal("can't open output file"); 215 } 216 217 return fd; 218} 219 220ThreadContext * 221Process::findFreeContext() 222{ 223 int size = contextIds.size(); 224 ThreadContext *tc; 225 for (int i = 0; i < size; ++i) { 226 tc = system->getThreadContext(contextIds[i]); 227 if (tc->status() == ThreadContext::Halted) { 228 // inactive context, free to use 229 return tc; 230 } 231 } 232 return NULL; 233} 234 235void 236Process::initState() 237{ 238 if (contextIds.empty()) 239 fatal("Process %s is not associated with any HW contexts!\n", name()); 240 241 // first thread context for this process... initialize & enable 242 ThreadContext *tc = system->getThreadContext(contextIds[0]); 243 244 // mark this context as active so it will start ticking. 245 tc->activate(0); 246 247 Port *mem_port; 248 mem_port = system->physmem->getPort("functional"); 249 initVirtMem = new TranslatingPort("process init port", this, 250 TranslatingPort::Always); 251 mem_port->setPeer(initVirtMem); 252 initVirtMem->setPeer(mem_port); 253} 254 255// map simulator fd sim_fd to target fd tgt_fd 256void 257Process::dup_fd(int sim_fd, int tgt_fd) 258{ 259 if (tgt_fd < 0 || tgt_fd > MAX_FD) 260 panic("Process::dup_fd tried to dup past MAX_FD (%d)", tgt_fd); 261 262 Process::FdMap *fdo = &fd_map[tgt_fd]; 263 fdo->fd = sim_fd; 264} 265 266 267// generate new target fd for sim_fd 268int 269Process::alloc_fd(int sim_fd, string filename, int flags, int mode, bool pipe) 270{ 271 // in case open() returns an error, don't allocate a new fd 272 if (sim_fd == -1) 273 return -1; 274 275 // find first free target fd 276 for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) { 277 Process::FdMap *fdo = &fd_map[free_fd]; 278 if (fdo->fd == -1) { 279 fdo->fd = sim_fd; 280 fdo->filename = filename; 281 fdo->mode = mode; 282 fdo->fileOffset = 0; 283 fdo->flags = flags; 284 fdo->isPipe = pipe; 285 fdo->readPipeSource = 0; 286 return free_fd; 287 } 288 } 289 290 panic("Process::alloc_fd: out of file descriptors!"); 291} 292 293 294// free target fd (e.g., after close) 295void 296Process::free_fd(int tgt_fd) 297{ 298 Process::FdMap *fdo = &fd_map[tgt_fd]; 299 if (fdo->fd == -1) 300 warn("Process::free_fd: request to free unused fd %d", tgt_fd); 301 302 fdo->fd = -1; 303 fdo->filename = "NULL"; 304 fdo->mode = 0; 305 fdo->fileOffset = 0; 306 fdo->flags = 0; 307 fdo->isPipe = false; 308 fdo->readPipeSource = 0; 309} 310 311 312// look up simulator fd for given target fd 313int 314Process::sim_fd(int tgt_fd) 315{ 316 if (tgt_fd < 0 || tgt_fd > MAX_FD) 317 return -1; 318 319 return fd_map[tgt_fd].fd; 320} 321 322Process::FdMap * 323Process::sim_fd_obj(int tgt_fd) 324{ 325 if (tgt_fd < 0 || tgt_fd > MAX_FD) 326 return NULL; 327 328 return &fd_map[tgt_fd]; 329} 330 331void 332Process::allocateMem(Addr vaddr, int64_t size, bool clobber) 333{ 334 int npages = divCeil(size, (int64_t)VMPageSize); 335 Addr paddr = system->allocPhysPages(npages); 336 pTable->map(vaddr, paddr, size, clobber); 337} 338 339bool 340Process::fixupStackFault(Addr vaddr) 341{ 342 // Check if this is already on the stack and there's just no page there 343 // yet. 344 if (vaddr >= stack_min && vaddr < stack_base) { 345 allocateMem(roundDown(vaddr, VMPageSize), VMPageSize); 346 return true; 347 } 348 349 // We've accessed the next page of the stack, so extend it to include 350 // this address. 351 if (vaddr < stack_min && vaddr >= stack_base - max_stack_size) { 352 while (vaddr < stack_min) { 353 stack_min -= TheISA::PageBytes; 354 if (stack_base - stack_min > max_stack_size) 355 fatal("Maximum stack size exceeded\n"); 356 if (stack_base - stack_min > 8 * 1024 * 1024) 357 fatal("Over max stack size for one thread\n"); 358 allocateMem(stack_min, TheISA::PageBytes); 359 inform("Increasing stack size by one page."); 360 }; 361 return true; 362 } 363 warn("Not extending stack: address %#x isn't at the end of the stack.", 364 vaddr); 365 return false; 366} 367 368// find all offsets for currently open files and save them 369void 370Process::fix_file_offsets() 371{ 372 Process::FdMap *fdo_stdin = &fd_map[STDIN_FILENO]; 373 Process::FdMap *fdo_stdout = &fd_map[STDOUT_FILENO]; 374 Process::FdMap *fdo_stderr = &fd_map[STDERR_FILENO]; 375 string in = fdo_stdin->filename; 376 string out = fdo_stdout->filename; 377 string err = fdo_stderr->filename; 378 379 // initialize file descriptors to default: same as simulator 380 int stdin_fd, stdout_fd, stderr_fd; 381 382 if (in == "stdin" || in == "cin") 383 stdin_fd = STDIN_FILENO; 384 else if (in == "None") 385 stdin_fd = -1; 386 else { 387 // open standard in and seek to the right location 388 stdin_fd = Process::openInputFile(in); 389 if (lseek(stdin_fd, fdo_stdin->fileOffset, SEEK_SET) < 0) 390 panic("Unable to seek to correct location in file: %s", in); 391 } 392 393 if (out == "stdout" || out == "cout") 394 stdout_fd = STDOUT_FILENO; 395 else if (out == "stderr" || out == "cerr") 396 stdout_fd = STDERR_FILENO; 397 else if (out == "None") 398 stdout_fd = -1; 399 else { 400 stdout_fd = Process::openOutputFile(out); 401 if (lseek(stdout_fd, fdo_stdout->fileOffset, SEEK_SET) < 0) 402 panic("Unable to seek to correct location in file: %s", out); 403 } 404 405 if (err == "stdout" || err == "cout") 406 stderr_fd = STDOUT_FILENO; 407 else if (err == "stderr" || err == "cerr") 408 stderr_fd = STDERR_FILENO; 409 else if (err == "None") 410 stderr_fd = -1; 411 else if (err == out) 412 stderr_fd = stdout_fd; 413 else { 414 stderr_fd = Process::openOutputFile(err); 415 if (lseek(stderr_fd, fdo_stderr->fileOffset, SEEK_SET) < 0) 416 panic("Unable to seek to correct location in file: %s", err); 417 } 418 419 fdo_stdin->fd = stdin_fd; 420 fdo_stdout->fd = stdout_fd; 421 fdo_stderr->fd = stderr_fd; 422 423 424 for (int free_fd = 3; free_fd <= MAX_FD; ++free_fd) { 425 Process::FdMap *fdo = &fd_map[free_fd]; 426 if (fdo->fd != -1) { 427 if (fdo->isPipe){ 428 if (fdo->filename == "PIPE-WRITE") 429 continue; 430 else { 431 assert (fdo->filename == "PIPE-READ"); 432 //create a new pipe 433 int fds[2]; 434 int pipe_retval = pipe(fds); 435 436 if (pipe_retval < 0) { 437 // error 438 panic("Unable to create new pipe."); 439 } 440 fdo->fd = fds[0]; //set read pipe 441 Process::FdMap *fdo_write = &fd_map[fdo->readPipeSource]; 442 if (fdo_write->filename != "PIPE-WRITE") 443 panic ("Couldn't find write end of the pipe"); 444 445 fdo_write->fd = fds[1];//set write pipe 446 } 447 } else { 448 //Open file 449 int fd = open(fdo->filename.c_str(), fdo->flags, fdo->mode); 450 451 if (fd == -1) 452 panic("Unable to open file: %s", fdo->filename); 453 fdo->fd = fd; 454 455 //Seek to correct location before checkpoint 456 if (lseek(fd,fdo->fileOffset, SEEK_SET) < 0) 457 panic("Unable to seek to correct location in file: %s", 458 fdo->filename); 459 } 460 } 461 } 462} 463 464void 465Process::find_file_offsets() 466{ 467 for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) { 468 Process::FdMap *fdo = &fd_map[free_fd]; 469 if (fdo->fd != -1) { 470 fdo->fileOffset = lseek(fdo->fd, 0, SEEK_CUR); 471 } else { 472 fdo->filename = "NULL"; 473 fdo->fileOffset = 0; 474 } 475 } 476} 477 478void 479Process::setReadPipeSource(int read_pipe_fd, int source_fd) 480{ 481 Process::FdMap *fdo = &fd_map[read_pipe_fd]; 482 fdo->readPipeSource = source_fd; 483} 484 485void 486Process::FdMap::serialize(std::ostream &os) 487{ 488 SERIALIZE_SCALAR(fd); 489 SERIALIZE_SCALAR(isPipe); 490 SERIALIZE_SCALAR(filename); 491 SERIALIZE_SCALAR(flags); 492 SERIALIZE_SCALAR(readPipeSource); 493 SERIALIZE_SCALAR(fileOffset); 494} 495 496void 497Process::FdMap::unserialize(Checkpoint *cp, const std::string §ion) 498{ 499 UNSERIALIZE_SCALAR(fd); 500 UNSERIALIZE_SCALAR(isPipe); 501 UNSERIALIZE_SCALAR(filename); 502 UNSERIALIZE_SCALAR(flags); 503 UNSERIALIZE_SCALAR(readPipeSource); 504 UNSERIALIZE_SCALAR(fileOffset); 505} 506 507void 508Process::serialize(std::ostream &os) 509{ 510 SERIALIZE_SCALAR(brk_point); 511 SERIALIZE_SCALAR(stack_base); 512 SERIALIZE_SCALAR(stack_size); 513 SERIALIZE_SCALAR(stack_min); 514 SERIALIZE_SCALAR(next_thread_stack_base); 515 SERIALIZE_SCALAR(mmap_start); 516 SERIALIZE_SCALAR(mmap_end); 517 SERIALIZE_SCALAR(nxm_start); 518 SERIALIZE_SCALAR(nxm_end); 519 find_file_offsets(); 520 pTable->serialize(os); 521 for (int x = 0; x <= MAX_FD; x++) { 522 nameOut(os, csprintf("%s.FdMap%d", name(), x)); 523 fd_map[x].serialize(os); 524 } 525 SERIALIZE_SCALAR(M5_pid); 526 527} 528 529void 530Process::unserialize(Checkpoint *cp, const std::string §ion) 531{ 532 UNSERIALIZE_SCALAR(brk_point); 533 UNSERIALIZE_SCALAR(stack_base); 534 UNSERIALIZE_SCALAR(stack_size); 535 UNSERIALIZE_SCALAR(stack_min); 536 UNSERIALIZE_SCALAR(next_thread_stack_base); 537 UNSERIALIZE_SCALAR(mmap_start); 538 UNSERIALIZE_SCALAR(mmap_end); 539 UNSERIALIZE_SCALAR(nxm_start); 540 UNSERIALIZE_SCALAR(nxm_end); 541 pTable->unserialize(cp, section); 542 for (int x = 0; x <= MAX_FD; x++) { 543 fd_map[x].unserialize(cp, csprintf("%s.FdMap%d", section, x)); 544 } 545 fix_file_offsets(); 546 UNSERIALIZE_OPT_SCALAR(M5_pid); 547 // The above returns a bool so that you could do something if you don't 548 // find the param in the checkpoint if you wanted to, like set a default 549 // but in this case we'll just stick with the instantianted value if not 550 // found. 551} 552 553 554//////////////////////////////////////////////////////////////////////// 555// 556// LiveProcess member definitions 557// 558//////////////////////////////////////////////////////////////////////// 559 560 561LiveProcess::LiveProcess(LiveProcessParams * params, ObjectFile *_objFile) 562 : Process(params), objFile(_objFile), 563 argv(params->cmd), envp(params->env), cwd(params->cwd) 564{ 565 __uid = params->uid; 566 __euid = params->euid; 567 __gid = params->gid; 568 __egid = params->egid; 569 __pid = params->pid; 570 __ppid = params->ppid; 571 572 prog_fname = params->cmd[0]; 573 574 // load up symbols, if any... these may be used for debugging or 575 // profiling. 576 if (!debugSymbolTable) { 577 debugSymbolTable = new SymbolTable(); 578 if (!objFile->loadGlobalSymbols(debugSymbolTable) || 579 !objFile->loadLocalSymbols(debugSymbolTable)) { 580 // didn't load any symbols 581 delete debugSymbolTable; 582 debugSymbolTable = NULL; 583 } 584 } 585} 586 587void 588LiveProcess::syscall(int64_t callnum, ThreadContext *tc) 589{ 590 num_syscalls++; 591 592 SyscallDesc *desc = getDesc(callnum); 593 if (desc == NULL) 594 fatal("Syscall %d out of range", callnum); 595 596 desc->doSyscall(callnum, this, tc); 597} 598 599IntReg 600LiveProcess::getSyscallArg(ThreadContext *tc, int &i, int width) 601{ 602 return getSyscallArg(tc, i); 603} 604 605LiveProcess * 606LiveProcess::create(LiveProcessParams * params) 607{ 608 LiveProcess *process = NULL; 609 610 string executable = 611 params->executable == "" ? params->cmd[0] : params->executable; 612 ObjectFile *objFile = createObjectFile(executable); 613 if (objFile == NULL) { 614 fatal("Can't load object file %s", executable); 615 } 616 617 if (objFile->isDynamic()) 618 fatal("Object file is a dynamic executable however only static " 619 "executables are supported!\n Please recompile your " 620 "executable as a static binary and try again.\n"); 621 622#if THE_ISA == ALPHA_ISA 623 if (objFile->getArch() != ObjectFile::Alpha) 624 fatal("Object file architecture does not match compiled ISA (Alpha)."); 625 626 switch (objFile->getOpSys()) { 627 case ObjectFile::Tru64: 628 process = new AlphaTru64Process(params, objFile); 629 break; 630 631 case ObjectFile::UnknownOpSys: 632 warn("Unknown operating system; assuming Linux."); 633 // fall through 634 case ObjectFile::Linux: 635 process = new AlphaLinuxProcess(params, objFile); 636 break; 637 638 default: 639 fatal("Unknown/unsupported operating system."); 640 } 641#elif THE_ISA == SPARC_ISA 642 if (objFile->getArch() != ObjectFile::SPARC64 && 643 objFile->getArch() != ObjectFile::SPARC32) 644 fatal("Object file architecture does not match compiled ISA (SPARC)."); 645 switch (objFile->getOpSys()) { 646 case ObjectFile::UnknownOpSys: 647 warn("Unknown operating system; assuming Linux."); 648 // fall through 649 case ObjectFile::Linux: 650 if (objFile->getArch() == ObjectFile::SPARC64) { 651 process = new Sparc64LinuxProcess(params, objFile); 652 } else { 653 process = new Sparc32LinuxProcess(params, objFile); 654 } 655 break; 656 657 658 case ObjectFile::Solaris: 659 process = new SparcSolarisProcess(params, objFile); 660 break; 661 662 default: 663 fatal("Unknown/unsupported operating system."); 664 } 665#elif THE_ISA == X86_ISA 666 if (objFile->getArch() != ObjectFile::X86_64 && 667 objFile->getArch() != ObjectFile::I386) 668 fatal("Object file architecture does not match compiled ISA (x86)."); 669 switch (objFile->getOpSys()) { 670 case ObjectFile::UnknownOpSys: 671 warn("Unknown operating system; assuming Linux."); 672 // fall through 673 case ObjectFile::Linux: 674 if (objFile->getArch() == ObjectFile::X86_64) { 675 process = new X86_64LinuxProcess(params, objFile); 676 } else { 677 process = new I386LinuxProcess(params, objFile); 678 } 679 break; 680 681 default: 682 fatal("Unknown/unsupported operating system."); 683 } 684#elif THE_ISA == MIPS_ISA 685 if (objFile->getArch() != ObjectFile::Mips) 686 fatal("Object file architecture does not match compiled ISA (MIPS)."); 687 switch (objFile->getOpSys()) { 688 case ObjectFile::UnknownOpSys: 689 warn("Unknown operating system; assuming Linux."); 690 // fall through 691 case ObjectFile::Linux: 692 process = new MipsLinuxProcess(params, objFile); 693 break; 694 695 default: 696 fatal("Unknown/unsupported operating system."); 697 } 698#elif THE_ISA == ARM_ISA 699 if (objFile->getArch() != ObjectFile::Arm && 700 objFile->getArch() != ObjectFile::Thumb) 701 fatal("Object file architecture does not match compiled ISA (ARM)."); 702 switch (objFile->getOpSys()) { 703 case ObjectFile::UnknownOpSys: 704 warn("Unknown operating system; assuming Linux."); 705 // fall through 706 case ObjectFile::Linux: 707 process = new ArmLinuxProcess(params, objFile, objFile->getArch()); 708 break; 709 case ObjectFile::LinuxArmOABI: 710 fatal("M5 does not support ARM OABI binaries. Please recompile with an" 711 " EABI compiler."); 712 default: 713 fatal("Unknown/unsupported operating system."); 714 } 715#elif THE_ISA == POWER_ISA 716 if (objFile->getArch() != ObjectFile::Power) 717 fatal("Object file architecture does not match compiled ISA (Power)."); 718 switch (objFile->getOpSys()) { 719 case ObjectFile::UnknownOpSys: 720 warn("Unknown operating system; assuming Linux."); 721 // fall through 722 case ObjectFile::Linux: 723 process = new PowerLinuxProcess(params, objFile); 724 break; 725 726 default: 727 fatal("Unknown/unsupported operating system."); 728 } 729#else 730#error "THE_ISA not set" 731#endif 732 733 734 if (process == NULL) 735 fatal("Unknown error creating process object."); 736 return process; 737} 738 739LiveProcess * 740LiveProcessParams::create() 741{ 742 return LiveProcess::create(this); 743} 744