process.cc revision 10905:a6ca6831e775
1/* 2 * Copyright (c) 2014 Advanced Micro Devices, Inc. 3 * Copyright (c) 2012 ARM Limited 4 * All rights reserved 5 * 6 * The license below extends only to copyright in the software and shall 7 * not be construed as granting a license to any other intellectual 8 * property including but not limited to intellectual property relating 9 * to a hardware implementation of the functionality of the software 10 * licensed hereunder. You may use the software subject to the license 11 * terms below provided that you ensure that this notice is replicated 12 * unmodified and in its entirety in all distributions of the software, 13 * modified or unmodified, in source code or in binary form. 14 * 15 * Copyright (c) 2001-2005 The Regents of The University of Michigan 16 * All rights reserved. 17 * 18 * Redistribution and use in source and binary forms, with or without 19 * modification, are permitted provided that the following conditions are 20 * met: redistributions of source code must retain the above copyright 21 * notice, this list of conditions and the following disclaimer; 22 * redistributions in binary form must reproduce the above copyright 23 * notice, this list of conditions and the following disclaimer in the 24 * documentation and/or other materials provided with the distribution; 25 * neither the name of the copyright holders nor the names of its 26 * contributors may be used to endorse or promote products derived from 27 * this software without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 30 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 31 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 32 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 33 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 34 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 35 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 36 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 37 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 38 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 39 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 40 * 41 * Authors: Nathan Binkert 42 * Steve Reinhardt 43 * Ali Saidi 44 */ 45 46#include <fcntl.h> 47#include <unistd.h> 48 49#include <cstdio> 50#include <string> 51 52#include "base/loader/object_file.hh" 53#include "base/loader/symtab.hh" 54#include "base/intmath.hh" 55#include "base/statistics.hh" 56#include "config/the_isa.hh" 57#include "cpu/thread_context.hh" 58#include "mem/page_table.hh" 59#include "mem/multi_level_page_table.hh" 60#include "mem/se_translating_port_proxy.hh" 61#include "params/LiveProcess.hh" 62#include "params/Process.hh" 63#include "sim/debug.hh" 64#include "sim/process.hh" 65#include "sim/process_impl.hh" 66#include "sim/stats.hh" 67#include "sim/syscall_emul.hh" 68#include "sim/system.hh" 69 70#if THE_ISA == ALPHA_ISA 71#include "arch/alpha/linux/process.hh" 72#include "arch/alpha/tru64/process.hh" 73#elif THE_ISA == SPARC_ISA 74#include "arch/sparc/linux/process.hh" 75#include "arch/sparc/solaris/process.hh" 76#elif THE_ISA == MIPS_ISA 77#include "arch/mips/linux/process.hh" 78#elif THE_ISA == ARM_ISA 79#include "arch/arm/linux/process.hh" 80#include "arch/arm/freebsd/process.hh" 81#elif THE_ISA == X86_ISA 82#include "arch/x86/linux/process.hh" 83#elif THE_ISA == POWER_ISA 84#include "arch/power/linux/process.hh" 85#else 86#error "THE_ISA not set" 87#endif 88 89 90using namespace std; 91using namespace TheISA; 92 93// current number of allocated processes 94int num_processes = 0; 95 96template<class IntType> 97AuxVector<IntType>::AuxVector(IntType type, IntType val) 98{ 99 a_type = TheISA::htog(type); 100 a_val = TheISA::htog(val); 101} 102 103template struct AuxVector<uint32_t>; 104template struct AuxVector<uint64_t>; 105 106Process::Process(ProcessParams * params) 107 : SimObject(params), system(params->system), 108 brk_point(0), stack_base(0), stack_size(0), stack_min(0), 109 max_stack_size(params->max_stack_size), 110 next_thread_stack_base(0), 111 M5_pid(system->allocatePID()), 112 useArchPT(params->useArchPT), 113 kvmInSE(params->kvmInSE), 114 pTable(useArchPT ? 115 static_cast<PageTableBase *>(new ArchPageTable(name(), M5_pid, system)) : 116 static_cast<PageTableBase *>(new FuncPageTable(name(), M5_pid)) ), 117 initVirtMem(system->getSystemPort(), this, 118 SETranslatingPortProxy::Always) 119{ 120 string in = params->input; 121 string out = params->output; 122 string err = params->errout; 123 124 // initialize file descriptors to default: same as simulator 125 int stdin_fd, stdout_fd, stderr_fd; 126 127 if (in == "stdin" || in == "cin") 128 stdin_fd = STDIN_FILENO; 129 else if (in == "None") 130 stdin_fd = -1; 131 else 132 stdin_fd = Process::openInputFile(in); 133 134 if (out == "stdout" || out == "cout") 135 stdout_fd = STDOUT_FILENO; 136 else if (out == "stderr" || out == "cerr") 137 stdout_fd = STDERR_FILENO; 138 else if (out == "None") 139 stdout_fd = -1; 140 else 141 stdout_fd = Process::openOutputFile(out); 142 143 if (err == "stdout" || err == "cout") 144 stderr_fd = STDOUT_FILENO; 145 else if (err == "stderr" || err == "cerr") 146 stderr_fd = STDERR_FILENO; 147 else if (err == "None") 148 stderr_fd = -1; 149 else if (err == out) 150 stderr_fd = stdout_fd; 151 else 152 stderr_fd = Process::openOutputFile(err); 153 154 // initialize first 3 fds (stdin, stdout, stderr) 155 Process::FdMap *fdo = &fd_map[STDIN_FILENO]; 156 fdo->fd = stdin_fd; 157 fdo->filename = in; 158 fdo->flags = O_RDONLY; 159 fdo->mode = -1; 160 fdo->fileOffset = 0; 161 162 fdo = &fd_map[STDOUT_FILENO]; 163 fdo->fd = stdout_fd; 164 fdo->filename = out; 165 fdo->flags = O_WRONLY | O_CREAT | O_TRUNC; 166 fdo->mode = 0774; 167 fdo->fileOffset = 0; 168 169 fdo = &fd_map[STDERR_FILENO]; 170 fdo->fd = stderr_fd; 171 fdo->filename = err; 172 fdo->flags = O_WRONLY; 173 fdo->mode = -1; 174 fdo->fileOffset = 0; 175 176 177 // mark remaining fds as free 178 for (int i = 3; i <= MAX_FD; ++i) { 179 fdo = &fd_map[i]; 180 fdo->fd = -1; 181 } 182 183 mmap_start = mmap_end = 0; 184 nxm_start = nxm_end = 0; 185 // other parameters will be initialized when the program is loaded 186} 187 188 189void 190Process::regStats() 191{ 192 using namespace Stats; 193 194 num_syscalls 195 .name(name() + ".num_syscalls") 196 .desc("Number of system calls") 197 ; 198} 199 200// 201// static helper functions 202// 203int 204Process::openInputFile(const string &filename) 205{ 206 int fd = open(filename.c_str(), O_RDONLY); 207 208 if (fd == -1) { 209 perror(NULL); 210 cerr << "unable to open \"" << filename << "\" for reading\n"; 211 fatal("can't open input file"); 212 } 213 214 return fd; 215} 216 217 218int 219Process::openOutputFile(const string &filename) 220{ 221 int fd = open(filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0664); 222 223 if (fd == -1) { 224 perror(NULL); 225 cerr << "unable to open \"" << filename << "\" for writing\n"; 226 fatal("can't open output file"); 227 } 228 229 return fd; 230} 231 232ThreadContext * 233Process::findFreeContext() 234{ 235 int size = contextIds.size(); 236 ThreadContext *tc; 237 for (int i = 0; i < size; ++i) { 238 tc = system->getThreadContext(contextIds[i]); 239 if (tc->status() == ThreadContext::Halted) { 240 // inactive context, free to use 241 return tc; 242 } 243 } 244 return NULL; 245} 246 247void 248Process::initState() 249{ 250 if (contextIds.empty()) 251 fatal("Process %s is not associated with any HW contexts!\n", name()); 252 253 // first thread context for this process... initialize & enable 254 ThreadContext *tc = system->getThreadContext(contextIds[0]); 255 256 // mark this context as active so it will start ticking. 257 tc->activate(); 258 259 pTable->initState(tc); 260} 261 262unsigned int 263Process::drain(DrainManager *dm) 264{ 265 find_file_offsets(); 266 return 0; 267} 268 269// map simulator fd sim_fd to target fd tgt_fd 270void 271Process::dup_fd(int sim_fd, int tgt_fd) 272{ 273 if (tgt_fd < 0 || tgt_fd > MAX_FD) 274 panic("Process::dup_fd tried to dup past MAX_FD (%d)", tgt_fd); 275 276 Process::FdMap *fdo = &fd_map[tgt_fd]; 277 fdo->fd = sim_fd; 278} 279 280 281// generate new target fd for sim_fd 282int 283Process::alloc_fd(int sim_fd, const string& filename, int flags, int mode, 284 bool pipe) 285{ 286 // in case open() returns an error, don't allocate a new fd 287 if (sim_fd == -1) 288 return -1; 289 290 // find first free target fd 291 for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) { 292 Process::FdMap *fdo = &fd_map[free_fd]; 293 if (fdo->fd == -1 && fdo->driver == NULL) { 294 fdo->fd = sim_fd; 295 fdo->filename = filename; 296 fdo->mode = mode; 297 fdo->fileOffset = 0; 298 fdo->flags = flags; 299 fdo->isPipe = pipe; 300 fdo->readPipeSource = 0; 301 return free_fd; 302 } 303 } 304 305 panic("Process::alloc_fd: out of file descriptors!"); 306} 307 308 309// free target fd (e.g., after close) 310void 311Process::free_fd(int tgt_fd) 312{ 313 Process::FdMap *fdo = &fd_map[tgt_fd]; 314 if (fdo->fd == -1) 315 warn("Process::free_fd: request to free unused fd %d", tgt_fd); 316 317 fdo->fd = -1; 318 fdo->filename = "NULL"; 319 fdo->mode = 0; 320 fdo->fileOffset = 0; 321 fdo->flags = 0; 322 fdo->isPipe = false; 323 fdo->readPipeSource = 0; 324 fdo->driver = NULL; 325} 326 327 328// look up simulator fd for given target fd 329int 330Process::sim_fd(int tgt_fd) 331{ 332 if (tgt_fd < 0 || tgt_fd > MAX_FD) 333 return -1; 334 335 return fd_map[tgt_fd].fd; 336} 337 338Process::FdMap * 339Process::sim_fd_obj(int tgt_fd) 340{ 341 if (tgt_fd < 0 || tgt_fd > MAX_FD) 342 return NULL; 343 344 return &fd_map[tgt_fd]; 345} 346 347void 348Process::allocateMem(Addr vaddr, int64_t size, bool clobber) 349{ 350 int npages = divCeil(size, (int64_t)PageBytes); 351 Addr paddr = system->allocPhysPages(npages); 352 pTable->map(vaddr, paddr, size, clobber ? PageTableBase::Clobber : 0); 353} 354 355bool 356Process::fixupStackFault(Addr vaddr) 357{ 358 // Check if this is already on the stack and there's just no page there 359 // yet. 360 if (vaddr >= stack_min && vaddr < stack_base) { 361 allocateMem(roundDown(vaddr, PageBytes), PageBytes); 362 return true; 363 } 364 365 // We've accessed the next page of the stack, so extend it to include 366 // this address. 367 if (vaddr < stack_min && vaddr >= stack_base - max_stack_size) { 368 while (vaddr < stack_min) { 369 stack_min -= TheISA::PageBytes; 370 if (stack_base - stack_min > max_stack_size) 371 fatal("Maximum stack size exceeded\n"); 372 allocateMem(stack_min, TheISA::PageBytes); 373 inform("Increasing stack size by one page."); 374 }; 375 return true; 376 } 377 return false; 378} 379 380// find all offsets for currently open files and save them 381void 382Process::fix_file_offsets() 383{ 384 Process::FdMap *fdo_stdin = &fd_map[STDIN_FILENO]; 385 Process::FdMap *fdo_stdout = &fd_map[STDOUT_FILENO]; 386 Process::FdMap *fdo_stderr = &fd_map[STDERR_FILENO]; 387 string in = fdo_stdin->filename; 388 string out = fdo_stdout->filename; 389 string err = fdo_stderr->filename; 390 391 // initialize file descriptors to default: same as simulator 392 int stdin_fd, stdout_fd, stderr_fd; 393 394 if (in == "stdin" || in == "cin") 395 stdin_fd = STDIN_FILENO; 396 else if (in == "NULL") 397 stdin_fd = -1; 398 else { 399 // open standard in and seek to the right location 400 stdin_fd = Process::openInputFile(in); 401 if (lseek(stdin_fd, fdo_stdin->fileOffset, SEEK_SET) < 0) 402 panic("Unable to seek to correct location in file: %s", in); 403 } 404 405 if (out == "stdout" || out == "cout") 406 stdout_fd = STDOUT_FILENO; 407 else if (out == "stderr" || out == "cerr") 408 stdout_fd = STDERR_FILENO; 409 else if (out == "NULL") 410 stdout_fd = -1; 411 else { 412 stdout_fd = Process::openOutputFile(out); 413 if (lseek(stdout_fd, fdo_stdout->fileOffset, SEEK_SET) < 0) 414 panic("Unable to seek to correct location in file: %s", out); 415 } 416 417 if (err == "stdout" || err == "cout") 418 stderr_fd = STDOUT_FILENO; 419 else if (err == "stderr" || err == "cerr") 420 stderr_fd = STDERR_FILENO; 421 else if (err == "NULL") 422 stderr_fd = -1; 423 else if (err == out) 424 stderr_fd = stdout_fd; 425 else { 426 stderr_fd = Process::openOutputFile(err); 427 if (lseek(stderr_fd, fdo_stderr->fileOffset, SEEK_SET) < 0) 428 panic("Unable to seek to correct location in file: %s", err); 429 } 430 431 fdo_stdin->fd = stdin_fd; 432 fdo_stdout->fd = stdout_fd; 433 fdo_stderr->fd = stderr_fd; 434 435 436 for (int free_fd = 3; free_fd <= MAX_FD; ++free_fd) { 437 Process::FdMap *fdo = &fd_map[free_fd]; 438 if (fdo->fd != -1) { 439 if (fdo->isPipe){ 440 if (fdo->filename == "PIPE-WRITE") 441 continue; 442 else { 443 assert (fdo->filename == "PIPE-READ"); 444 //create a new pipe 445 int fds[2]; 446 int pipe_retval = pipe(fds); 447 448 if (pipe_retval < 0) { 449 // error 450 panic("Unable to create new pipe."); 451 } 452 fdo->fd = fds[0]; //set read pipe 453 Process::FdMap *fdo_write = &fd_map[fdo->readPipeSource]; 454 if (fdo_write->filename != "PIPE-WRITE") 455 panic ("Couldn't find write end of the pipe"); 456 457 fdo_write->fd = fds[1];//set write pipe 458 } 459 } else { 460 //Open file 461 int fd = open(fdo->filename.c_str(), fdo->flags, fdo->mode); 462 463 if (fd == -1) 464 panic("Unable to open file: %s", fdo->filename); 465 fdo->fd = fd; 466 467 //Seek to correct location before checkpoint 468 if (lseek(fd, fdo->fileOffset, SEEK_SET) < 0) 469 panic("Unable to seek to correct location in file: %s", 470 fdo->filename); 471 } 472 } 473 } 474} 475 476void 477Process::find_file_offsets() 478{ 479 for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) { 480 Process::FdMap *fdo = &fd_map[free_fd]; 481 if (fdo->fd != -1) { 482 fdo->fileOffset = lseek(fdo->fd, 0, SEEK_CUR); 483 } else { 484 fdo->filename = "NULL"; 485 fdo->fileOffset = 0; 486 } 487 } 488} 489 490void 491Process::setReadPipeSource(int read_pipe_fd, int source_fd) 492{ 493 Process::FdMap *fdo = &fd_map[read_pipe_fd]; 494 fdo->readPipeSource = source_fd; 495} 496 497void 498Process::FdMap::serialize(CheckpointOut &cp) const 499{ 500 SERIALIZE_SCALAR(fd); 501 SERIALIZE_SCALAR(isPipe); 502 SERIALIZE_SCALAR(filename); 503 SERIALIZE_SCALAR(flags); 504 SERIALIZE_SCALAR(readPipeSource); 505 SERIALIZE_SCALAR(fileOffset); 506} 507 508void 509Process::FdMap::unserialize(CheckpointIn &cp) 510{ 511 UNSERIALIZE_SCALAR(fd); 512 UNSERIALIZE_SCALAR(isPipe); 513 UNSERIALIZE_SCALAR(filename); 514 UNSERIALIZE_SCALAR(flags); 515 UNSERIALIZE_SCALAR(readPipeSource); 516 UNSERIALIZE_SCALAR(fileOffset); 517} 518 519void 520Process::serialize(CheckpointOut &cp) const 521{ 522 SERIALIZE_SCALAR(brk_point); 523 SERIALIZE_SCALAR(stack_base); 524 SERIALIZE_SCALAR(stack_size); 525 SERIALIZE_SCALAR(stack_min); 526 SERIALIZE_SCALAR(next_thread_stack_base); 527 SERIALIZE_SCALAR(mmap_start); 528 SERIALIZE_SCALAR(mmap_end); 529 SERIALIZE_SCALAR(nxm_start); 530 SERIALIZE_SCALAR(nxm_end); 531 pTable->serialize(cp); 532 for (int x = 0; x <= MAX_FD; x++) { 533 fd_map[x].serializeSection(cp, csprintf("FdMap%d", x)); 534 } 535 SERIALIZE_SCALAR(M5_pid); 536 537} 538 539void 540Process::unserialize(CheckpointIn &cp) 541{ 542 UNSERIALIZE_SCALAR(brk_point); 543 UNSERIALIZE_SCALAR(stack_base); 544 UNSERIALIZE_SCALAR(stack_size); 545 UNSERIALIZE_SCALAR(stack_min); 546 UNSERIALIZE_SCALAR(next_thread_stack_base); 547 UNSERIALIZE_SCALAR(mmap_start); 548 UNSERIALIZE_SCALAR(mmap_end); 549 UNSERIALIZE_SCALAR(nxm_start); 550 UNSERIALIZE_SCALAR(nxm_end); 551 pTable->unserialize(cp); 552 for (int x = 0; x <= MAX_FD; x++) { 553 fd_map[x].unserializeSection(cp, csprintf("FdMap%d", x)); 554 } 555 fix_file_offsets(); 556 UNSERIALIZE_OPT_SCALAR(M5_pid); 557 // The above returns a bool so that you could do something if you don't 558 // find the param in the checkpoint if you wanted to, like set a default 559 // but in this case we'll just stick with the instantianted value if not 560 // found. 561} 562 563 564bool 565Process::map(Addr vaddr, Addr paddr, int size, bool cacheable) 566{ 567 pTable->map(vaddr, paddr, size, 568 cacheable ? 0 : PageTableBase::Uncacheable); 569 return true; 570} 571 572 573//////////////////////////////////////////////////////////////////////// 574// 575// LiveProcess member definitions 576// 577//////////////////////////////////////////////////////////////////////// 578 579 580LiveProcess::LiveProcess(LiveProcessParams *params, ObjectFile *_objFile) 581 : Process(params), objFile(_objFile), 582 argv(params->cmd), envp(params->env), cwd(params->cwd), 583 __uid(params->uid), __euid(params->euid), 584 __gid(params->gid), __egid(params->egid), 585 __pid(params->pid), __ppid(params->ppid), 586 drivers(params->drivers) 587{ 588 589 // load up symbols, if any... these may be used for debugging or 590 // profiling. 591 if (!debugSymbolTable) { 592 debugSymbolTable = new SymbolTable(); 593 if (!objFile->loadGlobalSymbols(debugSymbolTable) || 594 !objFile->loadLocalSymbols(debugSymbolTable) || 595 !objFile->loadWeakSymbols(debugSymbolTable)) { 596 // didn't load any symbols 597 delete debugSymbolTable; 598 debugSymbolTable = NULL; 599 } 600 } 601} 602 603void 604LiveProcess::syscall(int64_t callnum, ThreadContext *tc) 605{ 606 num_syscalls++; 607 608 SyscallDesc *desc = getDesc(callnum); 609 if (desc == NULL) 610 fatal("Syscall %d out of range", callnum); 611 612 desc->doSyscall(callnum, this, tc); 613} 614 615IntReg 616LiveProcess::getSyscallArg(ThreadContext *tc, int &i, int width) 617{ 618 return getSyscallArg(tc, i); 619} 620 621 622EmulatedDriver * 623LiveProcess::findDriver(std::string filename) 624{ 625 for (EmulatedDriver *d : drivers) { 626 if (d->match(filename)) 627 return d; 628 } 629 630 return NULL; 631} 632 633 634LiveProcess * 635LiveProcess::create(LiveProcessParams * params) 636{ 637 LiveProcess *process = NULL; 638 639 string executable = 640 params->executable == "" ? params->cmd[0] : params->executable; 641 ObjectFile *objFile = createObjectFile(executable); 642 if (objFile == NULL) { 643 fatal("Can't load object file %s", executable); 644 } 645 646 if (objFile->isDynamic()) 647 fatal("Object file is a dynamic executable however only static " 648 "executables are supported!\n Please recompile your " 649 "executable as a static binary and try again.\n"); 650 651#if THE_ISA == ALPHA_ISA 652 if (objFile->getArch() != ObjectFile::Alpha) 653 fatal("Object file architecture does not match compiled ISA (Alpha)."); 654 655 switch (objFile->getOpSys()) { 656 case ObjectFile::Tru64: 657 process = new AlphaTru64Process(params, objFile); 658 break; 659 660 case ObjectFile::UnknownOpSys: 661 warn("Unknown operating system; assuming Linux."); 662 // fall through 663 case ObjectFile::Linux: 664 process = new AlphaLinuxProcess(params, objFile); 665 break; 666 667 default: 668 fatal("Unknown/unsupported operating system."); 669 } 670#elif THE_ISA == SPARC_ISA 671 if (objFile->getArch() != ObjectFile::SPARC64 && 672 objFile->getArch() != ObjectFile::SPARC32) 673 fatal("Object file architecture does not match compiled ISA (SPARC)."); 674 switch (objFile->getOpSys()) { 675 case ObjectFile::UnknownOpSys: 676 warn("Unknown operating system; assuming Linux."); 677 // fall through 678 case ObjectFile::Linux: 679 if (objFile->getArch() == ObjectFile::SPARC64) { 680 process = new Sparc64LinuxProcess(params, objFile); 681 } else { 682 process = new Sparc32LinuxProcess(params, objFile); 683 } 684 break; 685 686 687 case ObjectFile::Solaris: 688 process = new SparcSolarisProcess(params, objFile); 689 break; 690 691 default: 692 fatal("Unknown/unsupported operating system."); 693 } 694#elif THE_ISA == X86_ISA 695 if (objFile->getArch() != ObjectFile::X86_64 && 696 objFile->getArch() != ObjectFile::I386) 697 fatal("Object file architecture does not match compiled ISA (x86)."); 698 switch (objFile->getOpSys()) { 699 case ObjectFile::UnknownOpSys: 700 warn("Unknown operating system; assuming Linux."); 701 // fall through 702 case ObjectFile::Linux: 703 if (objFile->getArch() == ObjectFile::X86_64) { 704 process = new X86_64LinuxProcess(params, objFile); 705 } else { 706 process = new I386LinuxProcess(params, objFile); 707 } 708 break; 709 710 default: 711 fatal("Unknown/unsupported operating system."); 712 } 713#elif THE_ISA == MIPS_ISA 714 if (objFile->getArch() != ObjectFile::Mips) 715 fatal("Object file architecture does not match compiled ISA (MIPS)."); 716 switch (objFile->getOpSys()) { 717 case ObjectFile::UnknownOpSys: 718 warn("Unknown operating system; assuming Linux."); 719 // fall through 720 case ObjectFile::Linux: 721 process = new MipsLinuxProcess(params, objFile); 722 break; 723 724 default: 725 fatal("Unknown/unsupported operating system."); 726 } 727#elif THE_ISA == ARM_ISA 728 ObjectFile::Arch arch = objFile->getArch(); 729 if (arch != ObjectFile::Arm && arch != ObjectFile::Thumb && 730 arch != ObjectFile::Arm64) 731 fatal("Object file architecture does not match compiled ISA (ARM)."); 732 switch (objFile->getOpSys()) { 733 case ObjectFile::UnknownOpSys: 734 warn("Unknown operating system; assuming Linux."); 735 // fall through 736 case ObjectFile::Linux: 737 if (arch == ObjectFile::Arm64) { 738 process = new ArmLinuxProcess64(params, objFile, 739 objFile->getArch()); 740 } else { 741 process = new ArmLinuxProcess32(params, objFile, 742 objFile->getArch()); 743 } 744 break; 745 case ObjectFile::FreeBSD: 746 if (arch == ObjectFile::Arm64) { 747 process = new ArmFreebsdProcess64(params, objFile, 748 objFile->getArch()); 749 } else { 750 process = new ArmFreebsdProcess32(params, objFile, 751 objFile->getArch()); 752 } 753 break; 754 case ObjectFile::LinuxArmOABI: 755 fatal("M5 does not support ARM OABI binaries. Please recompile with an" 756 " EABI compiler."); 757 default: 758 fatal("Unknown/unsupported operating system."); 759 } 760#elif THE_ISA == POWER_ISA 761 if (objFile->getArch() != ObjectFile::Power) 762 fatal("Object file architecture does not match compiled ISA (Power)."); 763 switch (objFile->getOpSys()) { 764 case ObjectFile::UnknownOpSys: 765 warn("Unknown operating system; assuming Linux."); 766 // fall through 767 case ObjectFile::Linux: 768 process = new PowerLinuxProcess(params, objFile); 769 break; 770 771 default: 772 fatal("Unknown/unsupported operating system."); 773 } 774#else 775#error "THE_ISA not set" 776#endif 777 778 if (process == NULL) 779 fatal("Unknown error creating process object."); 780 return process; 781} 782 783LiveProcess * 784LiveProcessParams::create() 785{ 786 return LiveProcess::create(this); 787} 788