process.cc revision 10929:b2bbfec74eca
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 fd_map(new FdMap[NUM_FDS]) 120{ 121 string in = params->input; 122 string out = params->output; 123 string err = params->errout; 124 125 // initialize file descriptors to default: same as simulator 126 int stdin_fd, stdout_fd, stderr_fd; 127 128 if (in == "stdin" || in == "cin") 129 stdin_fd = STDIN_FILENO; 130 else if (in == "None") 131 stdin_fd = -1; 132 else 133 stdin_fd = Process::openInputFile(in); 134 135 if (out == "stdout" || out == "cout") 136 stdout_fd = STDOUT_FILENO; 137 else if (out == "stderr" || out == "cerr") 138 stdout_fd = STDERR_FILENO; 139 else if (out == "None") 140 stdout_fd = -1; 141 else 142 stdout_fd = Process::openOutputFile(out); 143 144 if (err == "stdout" || err == "cout") 145 stderr_fd = STDOUT_FILENO; 146 else if (err == "stderr" || err == "cerr") 147 stderr_fd = STDERR_FILENO; 148 else if (err == "None") 149 stderr_fd = -1; 150 else if (err == out) 151 stderr_fd = stdout_fd; 152 else 153 stderr_fd = Process::openOutputFile(err); 154 155 // initialize first 3 fds (stdin, stdout, stderr) 156 Process::FdMap *fdo = &fd_map[STDIN_FILENO]; 157 fdo->fd = stdin_fd; 158 fdo->filename = in; 159 fdo->flags = O_RDONLY; 160 fdo->mode = -1; 161 fdo->fileOffset = 0; 162 163 fdo = &fd_map[STDOUT_FILENO]; 164 fdo->fd = stdout_fd; 165 fdo->filename = out; 166 fdo->flags = O_WRONLY | O_CREAT | O_TRUNC; 167 fdo->mode = 0774; 168 fdo->fileOffset = 0; 169 170 fdo = &fd_map[STDERR_FILENO]; 171 fdo->fd = stderr_fd; 172 fdo->filename = err; 173 fdo->flags = O_WRONLY; 174 fdo->mode = -1; 175 fdo->fileOffset = 0; 176 177 178 // mark remaining fds as free 179 for (int i = 3; i < NUM_FDS; ++i) { 180 fdo = &fd_map[i]; 181 fdo->fd = -1; 182 } 183 184 mmap_start = mmap_end = 0; 185 nxm_start = nxm_end = 0; 186 // other parameters will be initialized when the program is loaded 187} 188 189 190void 191Process::regStats() 192{ 193 using namespace Stats; 194 195 num_syscalls 196 .name(name() + ".num_syscalls") 197 .desc("Number of system calls") 198 ; 199} 200 201// 202// static helper functions 203// 204 205int 206Process::openInputFile(const string &filename) 207{ 208 int fd = open(filename.c_str(), O_RDONLY); 209 210 if (fd == -1) { 211 perror(NULL); 212 cerr << "unable to open \"" << filename << "\" for reading\n"; 213 fatal("can't open input file"); 214 } 215 216 return fd; 217} 218 219 220int 221Process::openOutputFile(const string &filename) 222{ 223 int fd = open(filename.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0664); 224 225 if (fd == -1) { 226 perror(NULL); 227 cerr << "unable to open \"" << filename << "\" for writing\n"; 228 fatal("can't open output file"); 229 } 230 231 return fd; 232} 233 234ThreadContext * 235Process::findFreeContext() 236{ 237 for (int id : contextIds) { 238 ThreadContext *tc = system->getThreadContext(id); 239 if (tc->status() == ThreadContext::Halted) 240 return tc; 241 } 242 return NULL; 243} 244 245void 246Process::initState() 247{ 248 if (contextIds.empty()) 249 fatal("Process %s is not associated with any HW contexts!\n", name()); 250 251 // first thread context for this process... initialize & enable 252 ThreadContext *tc = system->getThreadContext(contextIds[0]); 253 254 // mark this context as active so it will start ticking. 255 tc->activate(); 256 257 pTable->initState(tc); 258} 259 260DrainState 261Process::drain() 262{ 263 find_file_offsets(); 264 return DrainState::Drained; 265} 266 267int 268Process::alloc_fd(int sim_fd, const string& filename, int flags, int mode, 269 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 < NUM_FDS; ++free_fd) { 277 Process::FdMap *fdo = &fd_map[free_fd]; 278 if (fdo->fd == -1 && fdo->driver == NULL) { 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 293void 294Process::free_fdmap_entry(int tgt_fd) 295{ 296 Process::FdMap *fdo = &fd_map[tgt_fd]; 297 assert(fd_map[tgt_fd].fd > -1); 298 299 fdo->fd = -1; 300 fdo->filename = "NULL"; 301 fdo->mode = 0; 302 fdo->fileOffset = 0; 303 fdo->flags = 0; 304 fdo->isPipe = false; 305 fdo->readPipeSource = 0; 306 fdo->driver = NULL; 307} 308 309int 310Process::sim_fd(int tgt_fd) 311{ 312 FdMap *obj = sim_fd_obj(tgt_fd); 313 return obj ? obj->fd : -1; 314} 315 316Process::FdMap * 317Process::sim_fd_obj(int tgt_fd) 318{ 319 if (tgt_fd < 0 || tgt_fd >= NUM_FDS) 320 return NULL; 321 return &fd_map[tgt_fd]; 322} 323 324int 325Process::tgt_fd(int sim_fd) 326{ 327 for (int index = 0; index < NUM_FDS; ++index) 328 if (fd_map[index].fd == sim_fd) 329 return index; 330 return -1; 331} 332 333void 334Process::allocateMem(Addr vaddr, int64_t size, bool clobber) 335{ 336 int npages = divCeil(size, (int64_t)PageBytes); 337 Addr paddr = system->allocPhysPages(npages); 338 pTable->map(vaddr, paddr, size, clobber ? PageTableBase::Clobber : 0); 339} 340 341bool 342Process::fixupStackFault(Addr vaddr) 343{ 344 // Check if this is already on the stack and there's just no page there 345 // yet. 346 if (vaddr >= stack_min && vaddr < stack_base) { 347 allocateMem(roundDown(vaddr, PageBytes), PageBytes); 348 return true; 349 } 350 351 // We've accessed the next page of the stack, so extend it to include 352 // this address. 353 if (vaddr < stack_min && vaddr >= stack_base - max_stack_size) { 354 while (vaddr < stack_min) { 355 stack_min -= TheISA::PageBytes; 356 if (stack_base - stack_min > max_stack_size) 357 fatal("Maximum stack size exceeded\n"); 358 allocateMem(stack_min, TheISA::PageBytes); 359 inform("Increasing stack size by one page."); 360 }; 361 return true; 362 } 363 return false; 364} 365 366// find all offsets for currently open files and save them 367void 368Process::fix_file_offsets() 369{ 370 Process::FdMap *fdo_stdin = &fd_map[STDIN_FILENO]; 371 Process::FdMap *fdo_stdout = &fd_map[STDOUT_FILENO]; 372 Process::FdMap *fdo_stderr = &fd_map[STDERR_FILENO]; 373 string in = fdo_stdin->filename; 374 string out = fdo_stdout->filename; 375 string err = fdo_stderr->filename; 376 377 // initialize file descriptors to default: same as simulator 378 int stdin_fd, stdout_fd, stderr_fd; 379 380 if (in == "stdin" || in == "cin") 381 stdin_fd = STDIN_FILENO; 382 else if (in == "NULL") 383 stdin_fd = -1; 384 else { 385 // open standard in and seek to the right location 386 stdin_fd = Process::openInputFile(in); 387 if (lseek(stdin_fd, fdo_stdin->fileOffset, SEEK_SET) < 0) 388 panic("Unable to seek to correct location in file: %s", in); 389 } 390 391 if (out == "stdout" || out == "cout") 392 stdout_fd = STDOUT_FILENO; 393 else if (out == "stderr" || out == "cerr") 394 stdout_fd = STDERR_FILENO; 395 else if (out == "NULL") 396 stdout_fd = -1; 397 else { 398 stdout_fd = Process::openOutputFile(out); 399 if (lseek(stdout_fd, fdo_stdout->fileOffset, SEEK_SET) < 0) 400 panic("Unable to seek to correct location in file: %s", out); 401 } 402 403 if (err == "stdout" || err == "cout") 404 stderr_fd = STDOUT_FILENO; 405 else if (err == "stderr" || err == "cerr") 406 stderr_fd = STDERR_FILENO; 407 else if (err == "NULL") 408 stderr_fd = -1; 409 else if (err == out) 410 stderr_fd = stdout_fd; 411 else { 412 stderr_fd = Process::openOutputFile(err); 413 if (lseek(stderr_fd, fdo_stderr->fileOffset, SEEK_SET) < 0) 414 panic("Unable to seek to correct location in file: %s", err); 415 } 416 417 fdo_stdin->fd = stdin_fd; 418 fdo_stdout->fd = stdout_fd; 419 fdo_stderr->fd = stderr_fd; 420 421 422 for (int free_fd = 3; free_fd < NUM_FDS; ++free_fd) { 423 Process::FdMap *fdo = &fd_map[free_fd]; 424 if (fdo->fd != -1) { 425 if (fdo->isPipe){ 426 if (fdo->filename == "PIPE-WRITE") 427 continue; 428 else { 429 assert (fdo->filename == "PIPE-READ"); 430 //create a new pipe 431 int fds[2]; 432 int pipe_retval = pipe(fds); 433 434 if (pipe_retval < 0) { 435 // error 436 panic("Unable to create new pipe."); 437 } 438 fdo->fd = fds[0]; //set read pipe 439 Process::FdMap *fdo_write = &fd_map[fdo->readPipeSource]; 440 if (fdo_write->filename != "PIPE-WRITE") 441 panic ("Couldn't find write end of the pipe"); 442 443 fdo_write->fd = fds[1];//set write pipe 444 } 445 } else { 446 //Open file 447 int fd = open(fdo->filename.c_str(), fdo->flags, fdo->mode); 448 449 if (fd == -1) 450 panic("Unable to open file: %s", fdo->filename); 451 fdo->fd = fd; 452 453 //Seek to correct location before checkpoint 454 if (lseek(fd, fdo->fileOffset, SEEK_SET) < 0) 455 panic("Unable to seek to correct location in file: %s", 456 fdo->filename); 457 } 458 } 459 } 460} 461 462void 463Process::find_file_offsets() 464{ 465 for (int free_fd = 0; free_fd < NUM_FDS; ++free_fd) { 466 Process::FdMap *fdo = &fd_map[free_fd]; 467 if (fdo->fd != -1) { 468 fdo->fileOffset = lseek(fdo->fd, 0, SEEK_CUR); 469 } else { 470 fdo->filename = "NULL"; 471 fdo->fileOffset = 0; 472 } 473 } 474} 475 476void 477Process::setReadPipeSource(int read_pipe_fd, int source_fd) 478{ 479 Process::FdMap *fdo = &fd_map[read_pipe_fd]; 480 fdo->readPipeSource = source_fd; 481} 482 483void 484Process::FdMap::serialize(CheckpointOut &cp) const 485{ 486 SERIALIZE_SCALAR(fd); 487 SERIALIZE_SCALAR(isPipe); 488 SERIALIZE_SCALAR(filename); 489 SERIALIZE_SCALAR(flags); 490 SERIALIZE_SCALAR(readPipeSource); 491 SERIALIZE_SCALAR(fileOffset); 492} 493 494void 495Process::FdMap::unserialize(CheckpointIn &cp) 496{ 497 UNSERIALIZE_SCALAR(fd); 498 UNSERIALIZE_SCALAR(isPipe); 499 UNSERIALIZE_SCALAR(filename); 500 UNSERIALIZE_SCALAR(flags); 501 UNSERIALIZE_SCALAR(readPipeSource); 502 UNSERIALIZE_SCALAR(fileOffset); 503} 504 505void 506Process::serialize(CheckpointOut &cp) const 507{ 508 SERIALIZE_SCALAR(brk_point); 509 SERIALIZE_SCALAR(stack_base); 510 SERIALIZE_SCALAR(stack_size); 511 SERIALIZE_SCALAR(stack_min); 512 SERIALIZE_SCALAR(next_thread_stack_base); 513 SERIALIZE_SCALAR(mmap_start); 514 SERIALIZE_SCALAR(mmap_end); 515 SERIALIZE_SCALAR(nxm_start); 516 SERIALIZE_SCALAR(nxm_end); 517 pTable->serialize(cp); 518 for (int x = 0; x < NUM_FDS; x++) { 519 fd_map[x].serializeSection(cp, csprintf("FdMap%d", x)); 520 } 521 SERIALIZE_SCALAR(M5_pid); 522 523} 524 525void 526Process::unserialize(CheckpointIn &cp) 527{ 528 UNSERIALIZE_SCALAR(brk_point); 529 UNSERIALIZE_SCALAR(stack_base); 530 UNSERIALIZE_SCALAR(stack_size); 531 UNSERIALIZE_SCALAR(stack_min); 532 UNSERIALIZE_SCALAR(next_thread_stack_base); 533 UNSERIALIZE_SCALAR(mmap_start); 534 UNSERIALIZE_SCALAR(mmap_end); 535 UNSERIALIZE_SCALAR(nxm_start); 536 UNSERIALIZE_SCALAR(nxm_end); 537 pTable->unserialize(cp); 538 for (int x = 0; x < NUM_FDS; x++) { 539 fd_map[x].unserializeSection(cp, csprintf("FdMap%d", x)); 540 } 541 fix_file_offsets(); 542 UNSERIALIZE_OPT_SCALAR(M5_pid); 543 // The above returns a bool so that you could do something if you don't 544 // find the param in the checkpoint if you wanted to, like set a default 545 // but in this case we'll just stick with the instantianted value if not 546 // found. 547} 548 549 550bool 551Process::map(Addr vaddr, Addr paddr, int size, bool cacheable) 552{ 553 pTable->map(vaddr, paddr, size, 554 cacheable ? 0 : PageTableBase::Uncacheable); 555 return true; 556} 557 558 559//////////////////////////////////////////////////////////////////////// 560// 561// LiveProcess member definitions 562// 563//////////////////////////////////////////////////////////////////////// 564 565 566LiveProcess::LiveProcess(LiveProcessParams *params, ObjectFile *_objFile) 567 : Process(params), objFile(_objFile), 568 argv(params->cmd), envp(params->env), cwd(params->cwd), 569 __uid(params->uid), __euid(params->euid), 570 __gid(params->gid), __egid(params->egid), 571 __pid(params->pid), __ppid(params->ppid), 572 drivers(params->drivers) 573{ 574 575 // load up symbols, if any... these may be used for debugging or 576 // profiling. 577 if (!debugSymbolTable) { 578 debugSymbolTable = new SymbolTable(); 579 if (!objFile->loadGlobalSymbols(debugSymbolTable) || 580 !objFile->loadLocalSymbols(debugSymbolTable) || 581 !objFile->loadWeakSymbols(debugSymbolTable)) { 582 // didn't load any symbols 583 delete debugSymbolTable; 584 debugSymbolTable = NULL; 585 } 586 } 587} 588 589void 590LiveProcess::syscall(int64_t callnum, ThreadContext *tc) 591{ 592 num_syscalls++; 593 594 SyscallDesc *desc = getDesc(callnum); 595 if (desc == NULL) 596 fatal("Syscall %d out of range", callnum); 597 598 desc->doSyscall(callnum, this, tc); 599} 600 601IntReg 602LiveProcess::getSyscallArg(ThreadContext *tc, int &i, int width) 603{ 604 return getSyscallArg(tc, i); 605} 606 607 608EmulatedDriver * 609LiveProcess::findDriver(std::string filename) 610{ 611 for (EmulatedDriver *d : drivers) { 612 if (d->match(filename)) 613 return d; 614 } 615 616 return NULL; 617} 618 619 620LiveProcess * 621LiveProcess::create(LiveProcessParams * params) 622{ 623 LiveProcess *process = NULL; 624 625 string executable = 626 params->executable == "" ? params->cmd[0] : params->executable; 627 ObjectFile *objFile = createObjectFile(executable); 628 if (objFile == NULL) { 629 fatal("Can't load object file %s", executable); 630 } 631 632 if (objFile->isDynamic()) 633 fatal("Object file is a dynamic executable however only static " 634 "executables are supported!\n Please recompile your " 635 "executable as a static binary and try again.\n"); 636 637#if THE_ISA == ALPHA_ISA 638 if (objFile->getArch() != ObjectFile::Alpha) 639 fatal("Object file architecture does not match compiled ISA (Alpha)."); 640 641 switch (objFile->getOpSys()) { 642 case ObjectFile::Tru64: 643 process = new AlphaTru64Process(params, objFile); 644 break; 645 646 case ObjectFile::UnknownOpSys: 647 warn("Unknown operating system; assuming Linux."); 648 // fall through 649 case ObjectFile::Linux: 650 process = new AlphaLinuxProcess(params, objFile); 651 break; 652 653 default: 654 fatal("Unknown/unsupported operating system."); 655 } 656#elif THE_ISA == SPARC_ISA 657 if (objFile->getArch() != ObjectFile::SPARC64 && 658 objFile->getArch() != ObjectFile::SPARC32) 659 fatal("Object file architecture does not match compiled ISA (SPARC)."); 660 switch (objFile->getOpSys()) { 661 case ObjectFile::UnknownOpSys: 662 warn("Unknown operating system; assuming Linux."); 663 // fall through 664 case ObjectFile::Linux: 665 if (objFile->getArch() == ObjectFile::SPARC64) { 666 process = new Sparc64LinuxProcess(params, objFile); 667 } else { 668 process = new Sparc32LinuxProcess(params, objFile); 669 } 670 break; 671 672 673 case ObjectFile::Solaris: 674 process = new SparcSolarisProcess(params, objFile); 675 break; 676 677 default: 678 fatal("Unknown/unsupported operating system."); 679 } 680#elif THE_ISA == X86_ISA 681 if (objFile->getArch() != ObjectFile::X86_64 && 682 objFile->getArch() != ObjectFile::I386) 683 fatal("Object file architecture does not match compiled ISA (x86)."); 684 switch (objFile->getOpSys()) { 685 case ObjectFile::UnknownOpSys: 686 warn("Unknown operating system; assuming Linux."); 687 // fall through 688 case ObjectFile::Linux: 689 if (objFile->getArch() == ObjectFile::X86_64) { 690 process = new X86_64LinuxProcess(params, objFile); 691 } else { 692 process = new I386LinuxProcess(params, objFile); 693 } 694 break; 695 696 default: 697 fatal("Unknown/unsupported operating system."); 698 } 699#elif THE_ISA == MIPS_ISA 700 if (objFile->getArch() != ObjectFile::Mips) 701 fatal("Object file architecture does not match compiled ISA (MIPS)."); 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 MipsLinuxProcess(params, objFile); 708 break; 709 710 default: 711 fatal("Unknown/unsupported operating system."); 712 } 713#elif THE_ISA == ARM_ISA 714 ObjectFile::Arch arch = objFile->getArch(); 715 if (arch != ObjectFile::Arm && arch != ObjectFile::Thumb && 716 arch != ObjectFile::Arm64) 717 fatal("Object file architecture does not match compiled ISA (ARM)."); 718 switch (objFile->getOpSys()) { 719 case ObjectFile::UnknownOpSys: 720 warn("Unknown operating system; assuming Linux."); 721 // fall through 722 case ObjectFile::Linux: 723 if (arch == ObjectFile::Arm64) { 724 process = new ArmLinuxProcess64(params, objFile, 725 objFile->getArch()); 726 } else { 727 process = new ArmLinuxProcess32(params, objFile, 728 objFile->getArch()); 729 } 730 break; 731 case ObjectFile::FreeBSD: 732 if (arch == ObjectFile::Arm64) { 733 process = new ArmFreebsdProcess64(params, objFile, 734 objFile->getArch()); 735 } else { 736 process = new ArmFreebsdProcess32(params, objFile, 737 objFile->getArch()); 738 } 739 break; 740 case ObjectFile::LinuxArmOABI: 741 fatal("M5 does not support ARM OABI binaries. Please recompile with an" 742 " EABI compiler."); 743 default: 744 fatal("Unknown/unsupported operating system."); 745 } 746#elif THE_ISA == POWER_ISA 747 if (objFile->getArch() != ObjectFile::Power) 748 fatal("Object file architecture does not match compiled ISA (Power)."); 749 switch (objFile->getOpSys()) { 750 case ObjectFile::UnknownOpSys: 751 warn("Unknown operating system; assuming Linux."); 752 // fall through 753 case ObjectFile::Linux: 754 process = new PowerLinuxProcess(params, objFile); 755 break; 756 757 default: 758 fatal("Unknown/unsupported operating system."); 759 } 760#else 761#error "THE_ISA not set" 762#endif 763 764 if (process == NULL) 765 fatal("Unknown error creating process object."); 766 return process; 767} 768 769LiveProcess * 770LiveProcessParams::create() 771{ 772 return LiveProcess::create(this); 773} 774