process.cc revision 10559
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#elif THE_ISA == X86_ISA 81#include "arch/x86/linux/process.hh" 82#elif THE_ISA == POWER_ISA 83#include "arch/power/linux/process.hh" 84#else 85#error "THE_ISA not set" 86#endif 87 88 89using namespace std; 90using namespace TheISA; 91 92// current number of allocated processes 93int num_processes = 0; 94 95template<class IntType> 96AuxVector<IntType>::AuxVector(IntType type, IntType val) 97{ 98 a_type = TheISA::htog(type); 99 a_val = TheISA::htog(val); 100} 101 102template struct AuxVector<uint32_t>; 103template struct AuxVector<uint64_t>; 104 105Process::Process(ProcessParams * params) 106 : SimObject(params), system(params->system), 107 brk_point(0), stack_base(0), stack_size(0), stack_min(0), 108 max_stack_size(params->max_stack_size), 109 next_thread_stack_base(0), 110 M5_pid(system->allocatePID()), 111 useArchPT(params->useArchPT), 112 kvmInSE(params->kvmInSE), 113 pTable(useArchPT ? 114 static_cast<PageTableBase *>(new ArchPageTable(name(), M5_pid, system)) : 115 static_cast<PageTableBase *>(new FuncPageTable(name(), M5_pid)) ), 116 initVirtMem(system->getSystemPort(), this, 117 SETranslatingPortProxy::Always) 118{ 119 string in = params->input; 120 string out = params->output; 121 string err = params->errout; 122 123 // initialize file descriptors to default: same as simulator 124 int stdin_fd, stdout_fd, stderr_fd; 125 126 if (in == "stdin" || in == "cin") 127 stdin_fd = STDIN_FILENO; 128 else if (in == "None") 129 stdin_fd = -1; 130 else 131 stdin_fd = Process::openInputFile(in); 132 133 if (out == "stdout" || out == "cout") 134 stdout_fd = STDOUT_FILENO; 135 else if (out == "stderr" || out == "cerr") 136 stdout_fd = STDERR_FILENO; 137 else if (out == "None") 138 stdout_fd = -1; 139 else 140 stdout_fd = Process::openOutputFile(out); 141 142 if (err == "stdout" || err == "cout") 143 stderr_fd = STDOUT_FILENO; 144 else if (err == "stderr" || err == "cerr") 145 stderr_fd = STDERR_FILENO; 146 else if (err == "None") 147 stderr_fd = -1; 148 else if (err == out) 149 stderr_fd = stdout_fd; 150 else 151 stderr_fd = Process::openOutputFile(err); 152 153 // initialize first 3 fds (stdin, stdout, stderr) 154 Process::FdMap *fdo = &fd_map[STDIN_FILENO]; 155 fdo->fd = stdin_fd; 156 fdo->filename = in; 157 fdo->flags = O_RDONLY; 158 fdo->mode = -1; 159 fdo->fileOffset = 0; 160 161 fdo = &fd_map[STDOUT_FILENO]; 162 fdo->fd = stdout_fd; 163 fdo->filename = out; 164 fdo->flags = O_WRONLY | O_CREAT | O_TRUNC; 165 fdo->mode = 0774; 166 fdo->fileOffset = 0; 167 168 fdo = &fd_map[STDERR_FILENO]; 169 fdo->fd = stderr_fd; 170 fdo->filename = err; 171 fdo->flags = O_WRONLY; 172 fdo->mode = -1; 173 fdo->fileOffset = 0; 174 175 176 // mark remaining fds as free 177 for (int i = 3; i <= MAX_FD; ++i) { 178 fdo = &fd_map[i]; 179 fdo->fd = -1; 180 } 181 182 mmap_start = mmap_end = 0; 183 nxm_start = nxm_end = 0; 184 // other parameters will be initialized when the program is loaded 185} 186 187 188void 189Process::regStats() 190{ 191 using namespace Stats; 192 193 num_syscalls 194 .name(name() + ".num_syscalls") 195 .desc("Number of system calls") 196 ; 197} 198 199// 200// static helper functions 201// 202int 203Process::openInputFile(const string &filename) 204{ 205 int fd = open(filename.c_str(), O_RDONLY); 206 207 if (fd == -1) { 208 perror(NULL); 209 cerr << "unable to open \"" << filename << "\" for reading\n"; 210 fatal("can't open input file"); 211 } 212 213 return fd; 214} 215 216 217int 218Process::openOutputFile(const string &filename) 219{ 220 int fd = open(filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0664); 221 222 if (fd == -1) { 223 perror(NULL); 224 cerr << "unable to open \"" << filename << "\" for writing\n"; 225 fatal("can't open output file"); 226 } 227 228 return fd; 229} 230 231ThreadContext * 232Process::findFreeContext() 233{ 234 int size = contextIds.size(); 235 ThreadContext *tc; 236 for (int i = 0; i < size; ++i) { 237 tc = system->getThreadContext(contextIds[i]); 238 if (tc->status() == ThreadContext::Halted) { 239 // inactive context, free to use 240 return tc; 241 } 242 } 243 return NULL; 244} 245 246void 247Process::initState() 248{ 249 if (contextIds.empty()) 250 fatal("Process %s is not associated with any HW contexts!\n", name()); 251 252 // first thread context for this process... initialize & enable 253 ThreadContext *tc = system->getThreadContext(contextIds[0]); 254 255 // mark this context as active so it will start ticking. 256 tc->activate(); 257 258 pTable->initState(tc); 259} 260 261// map simulator fd sim_fd to target fd tgt_fd 262void 263Process::dup_fd(int sim_fd, int tgt_fd) 264{ 265 if (tgt_fd < 0 || tgt_fd > MAX_FD) 266 panic("Process::dup_fd tried to dup past MAX_FD (%d)", tgt_fd); 267 268 Process::FdMap *fdo = &fd_map[tgt_fd]; 269 fdo->fd = sim_fd; 270} 271 272 273// generate new target fd for sim_fd 274int 275Process::alloc_fd(int sim_fd, string filename, int flags, int mode, bool pipe) 276{ 277 // in case open() returns an error, don't allocate a new fd 278 if (sim_fd == -1) 279 return -1; 280 281 // find first free target fd 282 for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) { 283 Process::FdMap *fdo = &fd_map[free_fd]; 284 if (fdo->fd == -1 && fdo->driver == NULL) { 285 fdo->fd = sim_fd; 286 fdo->filename = filename; 287 fdo->mode = mode; 288 fdo->fileOffset = 0; 289 fdo->flags = flags; 290 fdo->isPipe = pipe; 291 fdo->readPipeSource = 0; 292 return free_fd; 293 } 294 } 295 296 panic("Process::alloc_fd: out of file descriptors!"); 297} 298 299 300// free target fd (e.g., after close) 301void 302Process::free_fd(int tgt_fd) 303{ 304 Process::FdMap *fdo = &fd_map[tgt_fd]; 305 if (fdo->fd == -1) 306 warn("Process::free_fd: request to free unused fd %d", tgt_fd); 307 308 fdo->fd = -1; 309 fdo->filename = "NULL"; 310 fdo->mode = 0; 311 fdo->fileOffset = 0; 312 fdo->flags = 0; 313 fdo->isPipe = false; 314 fdo->readPipeSource = 0; 315 fdo->driver = NULL; 316} 317 318 319// look up simulator fd for given target fd 320int 321Process::sim_fd(int tgt_fd) 322{ 323 if (tgt_fd < 0 || tgt_fd > MAX_FD) 324 return -1; 325 326 return fd_map[tgt_fd].fd; 327} 328 329Process::FdMap * 330Process::sim_fd_obj(int tgt_fd) 331{ 332 if (tgt_fd < 0 || tgt_fd > MAX_FD) 333 return NULL; 334 335 return &fd_map[tgt_fd]; 336} 337 338void 339Process::allocateMem(Addr vaddr, int64_t size, bool clobber) 340{ 341 int npages = divCeil(size, (int64_t)PageBytes); 342 Addr paddr = system->allocPhysPages(npages); 343 pTable->map(vaddr, paddr, size, clobber ? PageTableBase::Clobber : 0); 344} 345 346bool 347Process::fixupStackFault(Addr vaddr) 348{ 349 // Check if this is already on the stack and there's just no page there 350 // yet. 351 if (vaddr >= stack_min && vaddr < stack_base) { 352 allocateMem(roundDown(vaddr, PageBytes), PageBytes); 353 return true; 354 } 355 356 // We've accessed the next page of the stack, so extend it to include 357 // this address. 358 if (vaddr < stack_min && vaddr >= stack_base - max_stack_size) { 359 while (vaddr < stack_min) { 360 stack_min -= TheISA::PageBytes; 361 if (stack_base - stack_min > max_stack_size) 362 fatal("Maximum stack size exceeded\n"); 363 allocateMem(stack_min, TheISA::PageBytes); 364 inform("Increasing stack size by one page."); 365 }; 366 return true; 367 } 368 return false; 369} 370 371// find all offsets for currently open files and save them 372void 373Process::fix_file_offsets() 374{ 375 Process::FdMap *fdo_stdin = &fd_map[STDIN_FILENO]; 376 Process::FdMap *fdo_stdout = &fd_map[STDOUT_FILENO]; 377 Process::FdMap *fdo_stderr = &fd_map[STDERR_FILENO]; 378 string in = fdo_stdin->filename; 379 string out = fdo_stdout->filename; 380 string err = fdo_stderr->filename; 381 382 // initialize file descriptors to default: same as simulator 383 int stdin_fd, stdout_fd, stderr_fd; 384 385 if (in == "stdin" || in == "cin") 386 stdin_fd = STDIN_FILENO; 387 else if (in == "None") 388 stdin_fd = -1; 389 else { 390 // open standard in and seek to the right location 391 stdin_fd = Process::openInputFile(in); 392 if (lseek(stdin_fd, fdo_stdin->fileOffset, SEEK_SET) < 0) 393 panic("Unable to seek to correct location in file: %s", in); 394 } 395 396 if (out == "stdout" || out == "cout") 397 stdout_fd = STDOUT_FILENO; 398 else if (out == "stderr" || out == "cerr") 399 stdout_fd = STDERR_FILENO; 400 else if (out == "None") 401 stdout_fd = -1; 402 else { 403 stdout_fd = Process::openOutputFile(out); 404 if (lseek(stdout_fd, fdo_stdout->fileOffset, SEEK_SET) < 0) 405 panic("Unable to seek to correct location in file: %s", out); 406 } 407 408 if (err == "stdout" || err == "cout") 409 stderr_fd = STDOUT_FILENO; 410 else if (err == "stderr" || err == "cerr") 411 stderr_fd = STDERR_FILENO; 412 else if (err == "None") 413 stderr_fd = -1; 414 else if (err == out) 415 stderr_fd = stdout_fd; 416 else { 417 stderr_fd = Process::openOutputFile(err); 418 if (lseek(stderr_fd, fdo_stderr->fileOffset, SEEK_SET) < 0) 419 panic("Unable to seek to correct location in file: %s", err); 420 } 421 422 fdo_stdin->fd = stdin_fd; 423 fdo_stdout->fd = stdout_fd; 424 fdo_stderr->fd = stderr_fd; 425 426 427 for (int free_fd = 3; free_fd <= MAX_FD; ++free_fd) { 428 Process::FdMap *fdo = &fd_map[free_fd]; 429 if (fdo->fd != -1) { 430 if (fdo->isPipe){ 431 if (fdo->filename == "PIPE-WRITE") 432 continue; 433 else { 434 assert (fdo->filename == "PIPE-READ"); 435 //create a new pipe 436 int fds[2]; 437 int pipe_retval = pipe(fds); 438 439 if (pipe_retval < 0) { 440 // error 441 panic("Unable to create new pipe."); 442 } 443 fdo->fd = fds[0]; //set read pipe 444 Process::FdMap *fdo_write = &fd_map[fdo->readPipeSource]; 445 if (fdo_write->filename != "PIPE-WRITE") 446 panic ("Couldn't find write end of the pipe"); 447 448 fdo_write->fd = fds[1];//set write pipe 449 } 450 } else { 451 //Open file 452 int fd = open(fdo->filename.c_str(), fdo->flags, fdo->mode); 453 454 if (fd == -1) 455 panic("Unable to open file: %s", fdo->filename); 456 fdo->fd = fd; 457 458 //Seek to correct location before checkpoint 459 if (lseek(fd,fdo->fileOffset, SEEK_SET) < 0) 460 panic("Unable to seek to correct location in file: %s", 461 fdo->filename); 462 } 463 } 464 } 465} 466 467void 468Process::find_file_offsets() 469{ 470 for (int free_fd = 0; free_fd <= MAX_FD; ++free_fd) { 471 Process::FdMap *fdo = &fd_map[free_fd]; 472 if (fdo->fd != -1) { 473 fdo->fileOffset = lseek(fdo->fd, 0, SEEK_CUR); 474 } else { 475 fdo->filename = "NULL"; 476 fdo->fileOffset = 0; 477 } 478 } 479} 480 481void 482Process::setReadPipeSource(int read_pipe_fd, int source_fd) 483{ 484 Process::FdMap *fdo = &fd_map[read_pipe_fd]; 485 fdo->readPipeSource = source_fd; 486} 487 488void 489Process::FdMap::serialize(std::ostream &os) 490{ 491 SERIALIZE_SCALAR(fd); 492 SERIALIZE_SCALAR(isPipe); 493 SERIALIZE_SCALAR(filename); 494 SERIALIZE_SCALAR(flags); 495 SERIALIZE_SCALAR(readPipeSource); 496 SERIALIZE_SCALAR(fileOffset); 497} 498 499void 500Process::FdMap::unserialize(Checkpoint *cp, const std::string §ion) 501{ 502 UNSERIALIZE_SCALAR(fd); 503 UNSERIALIZE_SCALAR(isPipe); 504 UNSERIALIZE_SCALAR(filename); 505 UNSERIALIZE_SCALAR(flags); 506 UNSERIALIZE_SCALAR(readPipeSource); 507 UNSERIALIZE_SCALAR(fileOffset); 508} 509 510void 511Process::serialize(std::ostream &os) 512{ 513 SERIALIZE_SCALAR(brk_point); 514 SERIALIZE_SCALAR(stack_base); 515 SERIALIZE_SCALAR(stack_size); 516 SERIALIZE_SCALAR(stack_min); 517 SERIALIZE_SCALAR(next_thread_stack_base); 518 SERIALIZE_SCALAR(mmap_start); 519 SERIALIZE_SCALAR(mmap_end); 520 SERIALIZE_SCALAR(nxm_start); 521 SERIALIZE_SCALAR(nxm_end); 522 find_file_offsets(); 523 pTable->serialize(os); 524 for (int x = 0; x <= MAX_FD; x++) { 525 nameOut(os, csprintf("%s.FdMap%d", name(), x)); 526 fd_map[x].serialize(os); 527 } 528 SERIALIZE_SCALAR(M5_pid); 529 530} 531 532void 533Process::unserialize(Checkpoint *cp, const std::string §ion) 534{ 535 UNSERIALIZE_SCALAR(brk_point); 536 UNSERIALIZE_SCALAR(stack_base); 537 UNSERIALIZE_SCALAR(stack_size); 538 UNSERIALIZE_SCALAR(stack_min); 539 UNSERIALIZE_SCALAR(next_thread_stack_base); 540 UNSERIALIZE_SCALAR(mmap_start); 541 UNSERIALIZE_SCALAR(mmap_end); 542 UNSERIALIZE_SCALAR(nxm_start); 543 UNSERIALIZE_SCALAR(nxm_end); 544 pTable->unserialize(cp, section); 545 for (int x = 0; x <= MAX_FD; x++) { 546 fd_map[x].unserialize(cp, csprintf("%s.FdMap%d", section, x)); 547 } 548 fix_file_offsets(); 549 UNSERIALIZE_OPT_SCALAR(M5_pid); 550 // The above returns a bool so that you could do something if you don't 551 // find the param in the checkpoint if you wanted to, like set a default 552 // but in this case we'll just stick with the instantianted value if not 553 // found. 554} 555 556 557bool 558Process::map(Addr vaddr, Addr paddr, int size, bool cacheable) 559{ 560 pTable->map(vaddr, paddr, size, 561 cacheable ? 0 : PageTableBase::Uncacheable); 562 return true; 563} 564 565 566//////////////////////////////////////////////////////////////////////// 567// 568// LiveProcess member definitions 569// 570//////////////////////////////////////////////////////////////////////// 571 572 573LiveProcess::LiveProcess(LiveProcessParams *params, ObjectFile *_objFile) 574 : Process(params), objFile(_objFile), 575 argv(params->cmd), envp(params->env), cwd(params->cwd), 576 __uid(params->uid), __euid(params->euid), 577 __gid(params->gid), __egid(params->egid), 578 __pid(params->pid), __ppid(params->ppid), 579 drivers(params->drivers) 580{ 581 582 // load up symbols, if any... these may be used for debugging or 583 // profiling. 584 if (!debugSymbolTable) { 585 debugSymbolTable = new SymbolTable(); 586 if (!objFile->loadGlobalSymbols(debugSymbolTable) || 587 !objFile->loadLocalSymbols(debugSymbolTable) || 588 !objFile->loadWeakSymbols(debugSymbolTable)) { 589 // didn't load any symbols 590 delete debugSymbolTable; 591 debugSymbolTable = NULL; 592 } 593 } 594} 595 596void 597LiveProcess::syscall(int64_t callnum, ThreadContext *tc) 598{ 599 num_syscalls++; 600 601 SyscallDesc *desc = getDesc(callnum); 602 if (desc == NULL) 603 fatal("Syscall %d out of range", callnum); 604 605 desc->doSyscall(callnum, this, tc); 606} 607 608IntReg 609LiveProcess::getSyscallArg(ThreadContext *tc, int &i, int width) 610{ 611 return getSyscallArg(tc, i); 612} 613 614 615EmulatedDriver * 616LiveProcess::findDriver(std::string filename) 617{ 618 for (EmulatedDriver *d : drivers) { 619 if (d->match(filename)) 620 return d; 621 } 622 623 return NULL; 624} 625 626 627LiveProcess * 628LiveProcess::create(LiveProcessParams * params) 629{ 630 LiveProcess *process = NULL; 631 632 string executable = 633 params->executable == "" ? params->cmd[0] : params->executable; 634 ObjectFile *objFile = createObjectFile(executable); 635 if (objFile == NULL) { 636 fatal("Can't load object file %s", executable); 637 } 638 639 if (objFile->isDynamic()) 640 fatal("Object file is a dynamic executable however only static " 641 "executables are supported!\n Please recompile your " 642 "executable as a static binary and try again.\n"); 643 644#if THE_ISA == ALPHA_ISA 645 if (objFile->getArch() != ObjectFile::Alpha) 646 fatal("Object file architecture does not match compiled ISA (Alpha)."); 647 648 switch (objFile->getOpSys()) { 649 case ObjectFile::Tru64: 650 process = new AlphaTru64Process(params, objFile); 651 break; 652 653 case ObjectFile::UnknownOpSys: 654 warn("Unknown operating system; assuming Linux."); 655 // fall through 656 case ObjectFile::Linux: 657 process = new AlphaLinuxProcess(params, objFile); 658 break; 659 660 default: 661 fatal("Unknown/unsupported operating system."); 662 } 663#elif THE_ISA == SPARC_ISA 664 if (objFile->getArch() != ObjectFile::SPARC64 && 665 objFile->getArch() != ObjectFile::SPARC32) 666 fatal("Object file architecture does not match compiled ISA (SPARC)."); 667 switch (objFile->getOpSys()) { 668 case ObjectFile::UnknownOpSys: 669 warn("Unknown operating system; assuming Linux."); 670 // fall through 671 case ObjectFile::Linux: 672 if (objFile->getArch() == ObjectFile::SPARC64) { 673 process = new Sparc64LinuxProcess(params, objFile); 674 } else { 675 process = new Sparc32LinuxProcess(params, objFile); 676 } 677 break; 678 679 680 case ObjectFile::Solaris: 681 process = new SparcSolarisProcess(params, objFile); 682 break; 683 684 default: 685 fatal("Unknown/unsupported operating system."); 686 } 687#elif THE_ISA == X86_ISA 688 if (objFile->getArch() != ObjectFile::X86_64 && 689 objFile->getArch() != ObjectFile::I386) 690 fatal("Object file architecture does not match compiled ISA (x86)."); 691 switch (objFile->getOpSys()) { 692 case ObjectFile::UnknownOpSys: 693 warn("Unknown operating system; assuming Linux."); 694 // fall through 695 case ObjectFile::Linux: 696 if (objFile->getArch() == ObjectFile::X86_64) { 697 process = new X86_64LinuxProcess(params, objFile); 698 } else { 699 process = new I386LinuxProcess(params, objFile); 700 } 701 break; 702 703 default: 704 fatal("Unknown/unsupported operating system."); 705 } 706#elif THE_ISA == MIPS_ISA 707 if (objFile->getArch() != ObjectFile::Mips) 708 fatal("Object file architecture does not match compiled ISA (MIPS)."); 709 switch (objFile->getOpSys()) { 710 case ObjectFile::UnknownOpSys: 711 warn("Unknown operating system; assuming Linux."); 712 // fall through 713 case ObjectFile::Linux: 714 process = new MipsLinuxProcess(params, objFile); 715 break; 716 717 default: 718 fatal("Unknown/unsupported operating system."); 719 } 720#elif THE_ISA == ARM_ISA 721 ObjectFile::Arch arch = objFile->getArch(); 722 if (arch != ObjectFile::Arm && arch != ObjectFile::Thumb && 723 arch != ObjectFile::Arm64) 724 fatal("Object file architecture does not match compiled ISA (ARM)."); 725 switch (objFile->getOpSys()) { 726 case ObjectFile::UnknownOpSys: 727 warn("Unknown operating system; assuming Linux."); 728 // fall through 729 case ObjectFile::Linux: 730 if (arch == ObjectFile::Arm64) { 731 process = new ArmLinuxProcess64(params, objFile, 732 objFile->getArch()); 733 } else { 734 process = new ArmLinuxProcess32(params, objFile, 735 objFile->getArch()); 736 } 737 break; 738 case ObjectFile::LinuxArmOABI: 739 fatal("M5 does not support ARM OABI binaries. Please recompile with an" 740 " EABI compiler."); 741 default: 742 fatal("Unknown/unsupported operating system."); 743 } 744#elif THE_ISA == POWER_ISA 745 if (objFile->getArch() != ObjectFile::Power) 746 fatal("Object file architecture does not match compiled ISA (Power)."); 747 switch (objFile->getOpSys()) { 748 case ObjectFile::UnknownOpSys: 749 warn("Unknown operating system; assuming Linux."); 750 // fall through 751 case ObjectFile::Linux: 752 process = new PowerLinuxProcess(params, objFile); 753 break; 754 755 default: 756 fatal("Unknown/unsupported operating system."); 757 } 758#else 759#error "THE_ISA not set" 760#endif 761 762 if (process == NULL) 763 fatal("Unknown error creating process object."); 764 return process; 765} 766 767LiveProcess * 768LiveProcessParams::create() 769{ 770 return LiveProcess::create(this); 771} 772