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