1 //===-- Process.cpp ---------------------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "lldb/Target/Process.h" 11 12 #include "lldb/lldb-private-log.h" 13 14 #include "lldb/Breakpoint/StoppointCallbackContext.h" 15 #include "lldb/Breakpoint/BreakpointLocation.h" 16 #include "lldb/Core/Event.h" 17 #include "lldb/Core/ConnectionFileDescriptor.h" 18 #include "lldb/Core/Debugger.h" 19 #include "lldb/Core/InputReader.h" 20 #include "lldb/Core/Log.h" 21 #include "lldb/Core/PluginManager.h" 22 #include "lldb/Core/State.h" 23 #include "lldb/Expression/ClangUserExpression.h" 24 #include "lldb/Interpreter/CommandInterpreter.h" 25 #include "lldb/Host/Host.h" 26 #include "lldb/Target/ABI.h" 27 #include "lldb/Target/DynamicLoader.h" 28 #include "lldb/Target/LanguageRuntime.h" 29 #include "lldb/Target/CPPLanguageRuntime.h" 30 #include "lldb/Target/ObjCLanguageRuntime.h" 31 #include "lldb/Target/Platform.h" 32 #include "lldb/Target/RegisterContext.h" 33 #include "lldb/Target/StopInfo.h" 34 #include "lldb/Target/Target.h" 35 #include "lldb/Target/TargetList.h" 36 #include "lldb/Target/Thread.h" 37 #include "lldb/Target/ThreadPlan.h" 38 39 using namespace lldb; 40 using namespace lldb_private; 41 42 void 43 ProcessInstanceInfo::Dump (Stream &s, Platform *platform) const 44 { 45 const char *cstr; 46 if (m_pid != LLDB_INVALID_PROCESS_ID) 47 s.Printf (" pid = %i\n", m_pid); 48 49 if (m_parent_pid != LLDB_INVALID_PROCESS_ID) 50 s.Printf (" parent = %i\n", m_parent_pid); 51 52 if (m_executable) 53 { 54 s.Printf (" name = %s\n", m_executable.GetFilename().GetCString()); 55 s.PutCString (" file = "); 56 m_executable.Dump(&s); 57 s.EOL(); 58 } 59 const uint32_t argc = m_arguments.GetArgumentCount(); 60 if (argc > 0) 61 { 62 for (uint32_t i=0; i<argc; i++) 63 { 64 const char *arg = m_arguments.GetArgumentAtIndex(i); 65 if (i < 10) 66 s.Printf (" arg[%u] = %s\n", i, arg); 67 else 68 s.Printf ("arg[%u] = %s\n", i, arg); 69 } 70 } 71 72 const uint32_t envc = m_environment.GetArgumentCount(); 73 if (envc > 0) 74 { 75 for (uint32_t i=0; i<envc; i++) 76 { 77 const char *env = m_environment.GetArgumentAtIndex(i); 78 if (i < 10) 79 s.Printf (" env[%u] = %s\n", i, env); 80 else 81 s.Printf ("env[%u] = %s\n", i, env); 82 } 83 } 84 85 if (m_arch.IsValid()) 86 s.Printf (" arch = %s\n", m_arch.GetTriple().str().c_str()); 87 88 if (m_uid != UINT32_MAX) 89 { 90 cstr = platform->GetUserName (m_uid); 91 s.Printf (" uid = %-5u (%s)\n", m_uid, cstr ? cstr : ""); 92 } 93 if (m_gid != UINT32_MAX) 94 { 95 cstr = platform->GetGroupName (m_gid); 96 s.Printf (" gid = %-5u (%s)\n", m_gid, cstr ? cstr : ""); 97 } 98 if (m_euid != UINT32_MAX) 99 { 100 cstr = platform->GetUserName (m_euid); 101 s.Printf (" euid = %-5u (%s)\n", m_euid, cstr ? cstr : ""); 102 } 103 if (m_egid != UINT32_MAX) 104 { 105 cstr = platform->GetGroupName (m_egid); 106 s.Printf (" egid = %-5u (%s)\n", m_egid, cstr ? cstr : ""); 107 } 108 } 109 110 void 111 ProcessInstanceInfo::DumpTableHeader (Stream &s, Platform *platform, bool show_args, bool verbose) 112 { 113 const char *label; 114 if (show_args || verbose) 115 label = "ARGUMENTS"; 116 else 117 label = "NAME"; 118 119 if (verbose) 120 { 121 s.Printf ("PID PARENT USER GROUP EFF USER EFF GROUP TRIPLE %s\n", label); 122 s.PutCString ("====== ====== ========== ========== ========== ========== ======================== ============================\n"); 123 } 124 else 125 { 126 s.Printf ("PID PARENT USER ARCH %s\n", label); 127 s.PutCString ("====== ====== ========== ======= ============================\n"); 128 } 129 } 130 131 void 132 ProcessInstanceInfo::DumpAsTableRow (Stream &s, Platform *platform, bool show_args, bool verbose) const 133 { 134 if (m_pid != LLDB_INVALID_PROCESS_ID) 135 { 136 const char *cstr; 137 s.Printf ("%-6u %-6u ", m_pid, m_parent_pid); 138 139 140 if (verbose) 141 { 142 cstr = platform->GetUserName (m_uid); 143 if (cstr && cstr[0]) // Watch for empty string that indicates lookup failed 144 s.Printf ("%-10s ", cstr); 145 else 146 s.Printf ("%-10u ", m_uid); 147 148 cstr = platform->GetGroupName (m_gid); 149 if (cstr && cstr[0]) // Watch for empty string that indicates lookup failed 150 s.Printf ("%-10s ", cstr); 151 else 152 s.Printf ("%-10u ", m_gid); 153 154 cstr = platform->GetUserName (m_euid); 155 if (cstr && cstr[0]) // Watch for empty string that indicates lookup failed 156 s.Printf ("%-10s ", cstr); 157 else 158 s.Printf ("%-10u ", m_euid); 159 160 cstr = platform->GetGroupName (m_egid); 161 if (cstr && cstr[0]) // Watch for empty string that indicates lookup failed 162 s.Printf ("%-10s ", cstr); 163 else 164 s.Printf ("%-10u ", m_egid); 165 s.Printf ("%-24s ", m_arch.IsValid() ? m_arch.GetTriple().str().c_str() : ""); 166 } 167 else 168 { 169 s.Printf ("%-10s %.*-7s ", 170 platform->GetUserName (m_euid), 171 (int)m_arch.GetTriple().getArchName().size(), 172 m_arch.GetTriple().getArchName().data()); 173 } 174 175 if (verbose || show_args) 176 { 177 const uint32_t argc = m_arguments.GetArgumentCount(); 178 if (argc > 0) 179 { 180 for (uint32_t i=0; i<argc; i++) 181 { 182 if (i > 0) 183 s.PutChar (' '); 184 s.PutCString (m_arguments.GetArgumentAtIndex(i)); 185 } 186 } 187 } 188 else 189 { 190 s.PutCString (GetName()); 191 } 192 193 s.EOL(); 194 } 195 } 196 197 198 void 199 ProcessInfo::SetArgumentsFromArgs (const Args& args, 200 bool first_arg_is_executable, 201 bool first_arg_is_executable_and_argument) 202 { 203 // Copy all arguments 204 m_arguments = args; 205 206 // Is the first argument the executable? 207 if (first_arg_is_executable) 208 { 209 const char *first_arg = args.GetArgumentAtIndex (0); 210 if (first_arg) 211 { 212 // Yes the first argument is an executable, set it as the executable 213 // in the launch options. Don't resolve the file path as the path 214 // could be a remote platform path 215 const bool resolve = false; 216 m_executable.SetFile(first_arg, resolve); 217 218 // If argument zero is an executable and shouldn't be included 219 // in the arguments, remove it from the front of the arguments 220 if (first_arg_is_executable_and_argument == false) 221 m_arguments.DeleteArgumentAtIndex (0); 222 } 223 } 224 } 225 226 bool 227 ProcessLaunchInfo::FileAction::Open (int fd, const char *path, bool read, bool write) 228 { 229 if ((read || write) && fd >= 0 && path && path[0]) 230 { 231 m_action = eFileActionOpen; 232 m_fd = fd; 233 if (read && write) 234 m_arg = O_RDWR; 235 else if (read) 236 m_arg = O_RDONLY; 237 else 238 m_arg = O_WRONLY; 239 m_path.assign (path); 240 return true; 241 } 242 else 243 { 244 Clear(); 245 } 246 return false; 247 } 248 249 bool 250 ProcessLaunchInfo::FileAction::Close (int fd) 251 { 252 Clear(); 253 if (fd >= 0) 254 { 255 m_action = eFileActionClose; 256 m_fd = fd; 257 } 258 return m_fd >= 0; 259 } 260 261 262 bool 263 ProcessLaunchInfo::FileAction::Duplicate (int fd, int dup_fd) 264 { 265 Clear(); 266 if (fd >= 0 && dup_fd >= 0) 267 { 268 m_action = eFileActionDuplicate; 269 m_fd = fd; 270 m_arg = dup_fd; 271 } 272 return m_fd >= 0; 273 } 274 275 276 277 bool 278 ProcessLaunchInfo::FileAction::AddPosixSpawnFileAction (posix_spawn_file_actions_t *file_actions, 279 const FileAction *info, 280 Log *log, 281 Error& error) 282 { 283 if (info == NULL) 284 return false; 285 286 switch (info->m_action) 287 { 288 case eFileActionNone: 289 error.Clear(); 290 break; 291 292 case eFileActionClose: 293 if (info->m_fd == -1) 294 error.SetErrorString ("invalid fd for posix_spawn_file_actions_addclose(...)"); 295 else 296 { 297 error.SetError (::posix_spawn_file_actions_addclose (file_actions, info->m_fd), 298 eErrorTypePOSIX); 299 if (log && (error.Fail() || log)) 300 error.PutToLog(log, "posix_spawn_file_actions_addclose (action=%p, fd=%i)", 301 file_actions, info->m_fd); 302 } 303 break; 304 305 case eFileActionDuplicate: 306 if (info->m_fd == -1) 307 error.SetErrorString ("invalid fd for posix_spawn_file_actions_adddup2(...)"); 308 else if (info->m_arg == -1) 309 error.SetErrorString ("invalid duplicate fd for posix_spawn_file_actions_adddup2(...)"); 310 else 311 { 312 error.SetError (::posix_spawn_file_actions_adddup2 (file_actions, info->m_fd, info->m_arg), 313 eErrorTypePOSIX); 314 if (log && (error.Fail() || log)) 315 error.PutToLog(log, "posix_spawn_file_actions_adddup2 (action=%p, fd=%i, dup_fd=%i)", 316 file_actions, info->m_fd, info->m_arg); 317 } 318 break; 319 320 case eFileActionOpen: 321 if (info->m_fd == -1) 322 error.SetErrorString ("invalid fd in posix_spawn_file_actions_addopen(...)"); 323 else 324 { 325 int oflag = info->m_arg; 326 mode_t mode = 0; 327 328 error.SetError (::posix_spawn_file_actions_addopen (file_actions, 329 info->m_fd, 330 info->m_path.c_str(), 331 oflag, 332 mode), 333 eErrorTypePOSIX); 334 if (error.Fail() || log) 335 error.PutToLog(log, 336 "posix_spawn_file_actions_addopen (action=%p, fd=%i, path='%s', oflag=%i, mode=%i)", 337 file_actions, info->m_fd, info->m_path.c_str(), oflag, mode); 338 } 339 break; 340 341 default: 342 error.SetErrorStringWithFormat ("invalid file action: %i", info->m_action); 343 break; 344 } 345 return error.Success(); 346 } 347 348 Error 349 ProcessLaunchCommandOptions::SetOptionValue (uint32_t option_idx, const char *option_arg) 350 { 351 Error error; 352 char short_option = (char) m_getopt_table[option_idx].val; 353 354 switch (short_option) 355 { 356 case 's': // Stop at program entry point 357 launch_info.GetFlags().Set (eLaunchFlagStopAtEntry); 358 break; 359 360 case 'e': // STDERR for read + write 361 { 362 ProcessLaunchInfo::FileAction action; 363 if (action.Open(STDERR_FILENO, option_arg, true, true)) 364 launch_info.AppendFileAction (action); 365 } 366 break; 367 368 case 'i': // STDIN for read only 369 { 370 ProcessLaunchInfo::FileAction action; 371 if (action.Open(STDIN_FILENO, option_arg, true, false)) 372 launch_info.AppendFileAction (action); 373 } 374 break; 375 376 case 'o': // Open STDOUT for write only 377 { 378 ProcessLaunchInfo::FileAction action; 379 if (action.Open(STDOUT_FILENO, option_arg, false, true)) 380 launch_info.AppendFileAction (action); 381 } 382 break; 383 384 case 'p': // Process plug-in name 385 launch_info.SetProcessPluginName (option_arg); 386 break; 387 388 case 'n': // Disable STDIO 389 { 390 ProcessLaunchInfo::FileAction action; 391 if (action.Open(STDERR_FILENO, "/dev/null", true, true)) 392 launch_info.AppendFileAction (action); 393 if (action.Open(STDOUT_FILENO, "/dev/null", false, true)) 394 launch_info.AppendFileAction (action); 395 if (action.Open(STDIN_FILENO, "/dev/null", true, false)) 396 launch_info.AppendFileAction (action); 397 } 398 break; 399 400 case 'w': 401 launch_info.SetWorkingDirectory (option_arg); 402 break; 403 404 case 't': // Open process in new terminal window 405 launch_info.GetFlags().Set (eLaunchFlagLaunchInTTY); 406 break; 407 408 case 'a': 409 launch_info.GetArchitecture().SetTriple (option_arg, 410 m_interpreter.GetPlatform(true).get()); 411 break; 412 413 case 'A': 414 launch_info.GetFlags().Set (eLaunchFlagDisableASLR); 415 break; 416 417 case 'v': 418 launch_info.GetEnvironmentEntries().AppendArgument(option_arg); 419 break; 420 421 default: 422 error.SetErrorStringWithFormat("Invalid short option character '%c'.\n", short_option); 423 break; 424 425 } 426 return error; 427 } 428 429 OptionDefinition 430 ProcessLaunchCommandOptions::g_option_table[] = 431 { 432 { LLDB_OPT_SET_ALL, false, "stop-at-entry", 's', no_argument, NULL, 0, eArgTypeNone, "Stop at the entry point of the program when launching a process."}, 433 { LLDB_OPT_SET_ALL, false, "disable-aslr", 'A', no_argument, NULL, 0, eArgTypeNone, "Disable address space layout randomization when launching a process."}, 434 { LLDB_OPT_SET_ALL, false, "plugin", 'p', required_argument, NULL, 0, eArgTypePlugin, "Name of the process plugin you want to use."}, 435 { LLDB_OPT_SET_ALL, false, "working-dir", 'w', required_argument, NULL, 0, eArgTypePath, "Set the current working directory to <path> when running the inferior."}, 436 { LLDB_OPT_SET_ALL, false, "arch", 'a', required_argument, NULL, 0, eArgTypeArchitecture, "Set the architecture for the process to launch when ambiguous."}, 437 { LLDB_OPT_SET_ALL, false, "environment", 'v', required_argument, NULL, 0, eArgTypeNone, "Specify an environment variable name/value stirng (--environement NAME=VALUE). Can be specified multiple times for subsequent environment entries."}, 438 439 { LLDB_OPT_SET_1 , false, "stdin", 'i', required_argument, NULL, 0, eArgTypePath, "Redirect stdin for the process to <path>."}, 440 { LLDB_OPT_SET_1 , false, "stdout", 'o', required_argument, NULL, 0, eArgTypePath, "Redirect stdout for the process to <path>."}, 441 { LLDB_OPT_SET_1 , false, "stderr", 'e', required_argument, NULL, 0, eArgTypePath, "Redirect stderr for the process to <path>."}, 442 443 { LLDB_OPT_SET_2 , false, "tty", 't', no_argument, NULL, 0, eArgTypeNone, "Start the process in a terminal (not supported on all platforms)."}, 444 445 { LLDB_OPT_SET_3 , false, "no-stdio", 'n', no_argument, NULL, 0, eArgTypeNone, "Do not set up for terminal I/O to go to running process."}, 446 447 { 0 , false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL } 448 }; 449 450 451 452 bool 453 ProcessInstanceInfoMatch::NameMatches (const char *process_name) const 454 { 455 if (m_name_match_type == eNameMatchIgnore || process_name == NULL) 456 return true; 457 const char *match_name = m_match_info.GetName(); 458 if (!match_name) 459 return true; 460 461 return lldb_private::NameMatches (process_name, m_name_match_type, match_name); 462 } 463 464 bool 465 ProcessInstanceInfoMatch::Matches (const ProcessInstanceInfo &proc_info) const 466 { 467 if (!NameMatches (proc_info.GetName())) 468 return false; 469 470 if (m_match_info.ProcessIDIsValid() && 471 m_match_info.GetProcessID() != proc_info.GetProcessID()) 472 return false; 473 474 if (m_match_info.ParentProcessIDIsValid() && 475 m_match_info.GetParentProcessID() != proc_info.GetParentProcessID()) 476 return false; 477 478 if (m_match_info.UserIDIsValid () && 479 m_match_info.GetUserID() != proc_info.GetUserID()) 480 return false; 481 482 if (m_match_info.GroupIDIsValid () && 483 m_match_info.GetGroupID() != proc_info.GetGroupID()) 484 return false; 485 486 if (m_match_info.EffectiveUserIDIsValid () && 487 m_match_info.GetEffectiveUserID() != proc_info.GetEffectiveUserID()) 488 return false; 489 490 if (m_match_info.EffectiveGroupIDIsValid () && 491 m_match_info.GetEffectiveGroupID() != proc_info.GetEffectiveGroupID()) 492 return false; 493 494 if (m_match_info.GetArchitecture().IsValid() && 495 m_match_info.GetArchitecture() != proc_info.GetArchitecture()) 496 return false; 497 return true; 498 } 499 500 bool 501 ProcessInstanceInfoMatch::MatchAllProcesses () const 502 { 503 if (m_name_match_type != eNameMatchIgnore) 504 return false; 505 506 if (m_match_info.ProcessIDIsValid()) 507 return false; 508 509 if (m_match_info.ParentProcessIDIsValid()) 510 return false; 511 512 if (m_match_info.UserIDIsValid ()) 513 return false; 514 515 if (m_match_info.GroupIDIsValid ()) 516 return false; 517 518 if (m_match_info.EffectiveUserIDIsValid ()) 519 return false; 520 521 if (m_match_info.EffectiveGroupIDIsValid ()) 522 return false; 523 524 if (m_match_info.GetArchitecture().IsValid()) 525 return false; 526 527 if (m_match_all_users) 528 return false; 529 530 return true; 531 532 } 533 534 void 535 ProcessInstanceInfoMatch::Clear() 536 { 537 m_match_info.Clear(); 538 m_name_match_type = eNameMatchIgnore; 539 m_match_all_users = false; 540 } 541 542 Process* 543 Process::FindPlugin (Target &target, const char *plugin_name, Listener &listener) 544 { 545 ProcessCreateInstance create_callback = NULL; 546 if (plugin_name) 547 { 548 create_callback = PluginManager::GetProcessCreateCallbackForPluginName (plugin_name); 549 if (create_callback) 550 { 551 std::auto_ptr<Process> debugger_ap(create_callback(target, listener)); 552 if (debugger_ap->CanDebug(target)) 553 return debugger_ap.release(); 554 } 555 } 556 else 557 { 558 for (uint32_t idx = 0; (create_callback = PluginManager::GetProcessCreateCallbackAtIndex(idx)) != NULL; ++idx) 559 { 560 std::auto_ptr<Process> debugger_ap(create_callback(target, listener)); 561 if (debugger_ap->CanDebug(target)) 562 return debugger_ap.release(); 563 } 564 } 565 return NULL; 566 } 567 568 569 //---------------------------------------------------------------------- 570 // Process constructor 571 //---------------------------------------------------------------------- 572 Process::Process(Target &target, Listener &listener) : 573 UserID (LLDB_INVALID_PROCESS_ID), 574 Broadcaster ("lldb.process"), 575 ProcessInstanceSettings (*GetSettingsController()), 576 m_target (target), 577 m_public_state (eStateUnloaded), 578 m_private_state (eStateUnloaded), 579 m_private_state_broadcaster ("lldb.process.internal_state_broadcaster"), 580 m_private_state_control_broadcaster ("lldb.process.internal_state_control_broadcaster"), 581 m_private_state_listener ("lldb.process.internal_state_listener"), 582 m_private_state_control_wait(), 583 m_private_state_thread (LLDB_INVALID_HOST_THREAD), 584 m_stop_id (0), 585 m_thread_index_id (0), 586 m_exit_status (-1), 587 m_exit_string (), 588 m_thread_list (this), 589 m_notifications (), 590 m_image_tokens (), 591 m_listener (listener), 592 m_breakpoint_site_list (), 593 m_dynamic_checkers_ap (), 594 m_unix_signals (), 595 m_abi_sp (), 596 m_process_input_reader (), 597 m_stdio_communication ("process.stdio"), 598 m_stdio_communication_mutex (Mutex::eMutexTypeRecursive), 599 m_stdout_data (), 600 m_memory_cache (*this), 601 m_allocated_memory_cache (*this), 602 m_next_event_action_ap() 603 { 604 UpdateInstanceName(); 605 606 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT)); 607 if (log) 608 log->Printf ("%p Process::Process()", this); 609 610 SetEventName (eBroadcastBitStateChanged, "state-changed"); 611 SetEventName (eBroadcastBitInterrupt, "interrupt"); 612 SetEventName (eBroadcastBitSTDOUT, "stdout-available"); 613 SetEventName (eBroadcastBitSTDERR, "stderr-available"); 614 615 listener.StartListeningForEvents (this, 616 eBroadcastBitStateChanged | 617 eBroadcastBitInterrupt | 618 eBroadcastBitSTDOUT | 619 eBroadcastBitSTDERR); 620 621 m_private_state_listener.StartListeningForEvents(&m_private_state_broadcaster, 622 eBroadcastBitStateChanged); 623 624 m_private_state_listener.StartListeningForEvents(&m_private_state_control_broadcaster, 625 eBroadcastInternalStateControlStop | 626 eBroadcastInternalStateControlPause | 627 eBroadcastInternalStateControlResume); 628 } 629 630 //---------------------------------------------------------------------- 631 // Destructor 632 //---------------------------------------------------------------------- 633 Process::~Process() 634 { 635 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT)); 636 if (log) 637 log->Printf ("%p Process::~Process()", this); 638 StopPrivateStateThread(); 639 } 640 641 void 642 Process::Finalize() 643 { 644 // Do any cleanup needed prior to being destructed... Subclasses 645 // that override this method should call this superclass method as well. 646 647 // We need to destroy the loader before the derived Process class gets destroyed 648 // since it is very likely that undoing the loader will require access to the real process. 649 if (m_dyld_ap.get() != NULL) 650 m_dyld_ap.reset(); 651 } 652 653 void 654 Process::RegisterNotificationCallbacks (const Notifications& callbacks) 655 { 656 m_notifications.push_back(callbacks); 657 if (callbacks.initialize != NULL) 658 callbacks.initialize (callbacks.baton, this); 659 } 660 661 bool 662 Process::UnregisterNotificationCallbacks(const Notifications& callbacks) 663 { 664 std::vector<Notifications>::iterator pos, end = m_notifications.end(); 665 for (pos = m_notifications.begin(); pos != end; ++pos) 666 { 667 if (pos->baton == callbacks.baton && 668 pos->initialize == callbacks.initialize && 669 pos->process_state_changed == callbacks.process_state_changed) 670 { 671 m_notifications.erase(pos); 672 return true; 673 } 674 } 675 return false; 676 } 677 678 void 679 Process::SynchronouslyNotifyStateChanged (StateType state) 680 { 681 std::vector<Notifications>::iterator notification_pos, notification_end = m_notifications.end(); 682 for (notification_pos = m_notifications.begin(); notification_pos != notification_end; ++notification_pos) 683 { 684 if (notification_pos->process_state_changed) 685 notification_pos->process_state_changed (notification_pos->baton, this, state); 686 } 687 } 688 689 // FIXME: We need to do some work on events before the general Listener sees them. 690 // For instance if we are continuing from a breakpoint, we need to ensure that we do 691 // the little "insert real insn, step & stop" trick. But we can't do that when the 692 // event is delivered by the broadcaster - since that is done on the thread that is 693 // waiting for new events, so if we needed more than one event for our handling, we would 694 // stall. So instead we do it when we fetch the event off of the queue. 695 // 696 697 StateType 698 Process::GetNextEvent (EventSP &event_sp) 699 { 700 StateType state = eStateInvalid; 701 702 if (m_listener.GetNextEventForBroadcaster (this, event_sp) && event_sp) 703 state = Process::ProcessEventData::GetStateFromEvent (event_sp.get()); 704 705 return state; 706 } 707 708 709 StateType 710 Process::WaitForProcessToStop (const TimeValue *timeout) 711 { 712 StateType match_states[] = { eStateStopped, eStateCrashed, eStateDetached, eStateExited, eStateUnloaded }; 713 return WaitForState (timeout, match_states, sizeof(match_states) / sizeof(StateType)); 714 } 715 716 717 StateType 718 Process::WaitForState 719 ( 720 const TimeValue *timeout, 721 const StateType *match_states, const uint32_t num_match_states 722 ) 723 { 724 EventSP event_sp; 725 uint32_t i; 726 StateType state = GetState(); 727 while (state != eStateInvalid) 728 { 729 // If we are exited or detached, we won't ever get back to any 730 // other valid state... 731 if (state == eStateDetached || state == eStateExited) 732 return state; 733 734 state = WaitForStateChangedEvents (timeout, event_sp); 735 736 for (i=0; i<num_match_states; ++i) 737 { 738 if (match_states[i] == state) 739 return state; 740 } 741 } 742 return state; 743 } 744 745 bool 746 Process::HijackProcessEvents (Listener *listener) 747 { 748 if (listener != NULL) 749 { 750 return HijackBroadcaster(listener, eBroadcastBitStateChanged); 751 } 752 else 753 return false; 754 } 755 756 void 757 Process::RestoreProcessEvents () 758 { 759 RestoreBroadcaster(); 760 } 761 762 bool 763 Process::HijackPrivateProcessEvents (Listener *listener) 764 { 765 if (listener != NULL) 766 { 767 return m_private_state_broadcaster.HijackBroadcaster(listener, eBroadcastBitStateChanged); 768 } 769 else 770 return false; 771 } 772 773 void 774 Process::RestorePrivateProcessEvents () 775 { 776 m_private_state_broadcaster.RestoreBroadcaster(); 777 } 778 779 StateType 780 Process::WaitForStateChangedEvents (const TimeValue *timeout, EventSP &event_sp) 781 { 782 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS)); 783 784 if (log) 785 log->Printf ("Process::%s (timeout = %p, event_sp)...", __FUNCTION__, timeout); 786 787 StateType state = eStateInvalid; 788 if (m_listener.WaitForEventForBroadcasterWithType (timeout, 789 this, 790 eBroadcastBitStateChanged, 791 event_sp)) 792 state = Process::ProcessEventData::GetStateFromEvent(event_sp.get()); 793 794 if (log) 795 log->Printf ("Process::%s (timeout = %p, event_sp) => %s", 796 __FUNCTION__, 797 timeout, 798 StateAsCString(state)); 799 return state; 800 } 801 802 Event * 803 Process::PeekAtStateChangedEvents () 804 { 805 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS)); 806 807 if (log) 808 log->Printf ("Process::%s...", __FUNCTION__); 809 810 Event *event_ptr; 811 event_ptr = m_listener.PeekAtNextEventForBroadcasterWithType (this, 812 eBroadcastBitStateChanged); 813 if (log) 814 { 815 if (event_ptr) 816 { 817 log->Printf ("Process::%s (event_ptr) => %s", 818 __FUNCTION__, 819 StateAsCString(ProcessEventData::GetStateFromEvent (event_ptr))); 820 } 821 else 822 { 823 log->Printf ("Process::%s no events found", 824 __FUNCTION__); 825 } 826 } 827 return event_ptr; 828 } 829 830 StateType 831 Process::WaitForStateChangedEventsPrivate (const TimeValue *timeout, EventSP &event_sp) 832 { 833 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS)); 834 835 if (log) 836 log->Printf ("Process::%s (timeout = %p, event_sp)...", __FUNCTION__, timeout); 837 838 StateType state = eStateInvalid; 839 if (m_private_state_listener.WaitForEventForBroadcasterWithType (timeout, 840 &m_private_state_broadcaster, 841 eBroadcastBitStateChanged, 842 event_sp)) 843 state = Process::ProcessEventData::GetStateFromEvent(event_sp.get()); 844 845 // This is a bit of a hack, but when we wait here we could very well return 846 // to the command-line, and that could disable the log, which would render the 847 // log we got above invalid. 848 if (log) 849 { 850 if (state == eStateInvalid) 851 log->Printf ("Process::%s (timeout = %p, event_sp) => TIMEOUT", __FUNCTION__, timeout); 852 else 853 log->Printf ("Process::%s (timeout = %p, event_sp) => %s", __FUNCTION__, timeout, StateAsCString(state)); 854 } 855 return state; 856 } 857 858 bool 859 Process::WaitForEventsPrivate (const TimeValue *timeout, EventSP &event_sp, bool control_only) 860 { 861 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS)); 862 863 if (log) 864 log->Printf ("Process::%s (timeout = %p, event_sp)...", __FUNCTION__, timeout); 865 866 if (control_only) 867 return m_private_state_listener.WaitForEventForBroadcaster(timeout, &m_private_state_control_broadcaster, event_sp); 868 else 869 return m_private_state_listener.WaitForEvent(timeout, event_sp); 870 } 871 872 bool 873 Process::IsRunning () const 874 { 875 return StateIsRunningState (m_public_state.GetValue()); 876 } 877 878 int 879 Process::GetExitStatus () 880 { 881 if (m_public_state.GetValue() == eStateExited) 882 return m_exit_status; 883 return -1; 884 } 885 886 887 void 888 Process::ProcessInstanceSettings::GetHostEnvironmentIfNeeded () 889 { 890 if (m_inherit_host_env && !m_got_host_env) 891 { 892 m_got_host_env = true; 893 StringList host_env; 894 const size_t host_env_count = Host::GetEnvironment (host_env); 895 for (size_t idx=0; idx<host_env_count; idx++) 896 { 897 const char *env_entry = host_env.GetStringAtIndex (idx); 898 if (env_entry) 899 { 900 const char *equal_pos = ::strchr(env_entry, '='); 901 if (equal_pos) 902 { 903 std::string key (env_entry, equal_pos - env_entry); 904 std::string value (equal_pos + 1); 905 if (m_env_vars.find (key) == m_env_vars.end()) 906 m_env_vars[key] = value; 907 } 908 } 909 } 910 } 911 } 912 913 914 size_t 915 Process::ProcessInstanceSettings::GetEnvironmentAsArgs (Args &env) 916 { 917 GetHostEnvironmentIfNeeded (); 918 919 dictionary::const_iterator pos, end = m_env_vars.end(); 920 for (pos = m_env_vars.begin(); pos != end; ++pos) 921 { 922 std::string env_var_equal_value (pos->first); 923 env_var_equal_value.append(1, '='); 924 env_var_equal_value.append (pos->second); 925 env.AppendArgument (env_var_equal_value.c_str()); 926 } 927 return env.GetArgumentCount(); 928 } 929 930 931 const char * 932 Process::GetExitDescription () 933 { 934 if (m_public_state.GetValue() == eStateExited && !m_exit_string.empty()) 935 return m_exit_string.c_str(); 936 return NULL; 937 } 938 939 bool 940 Process::SetExitStatus (int status, const char *cstr) 941 { 942 LogSP log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_STATE | LIBLLDB_LOG_PROCESS)); 943 if (log) 944 log->Printf("Process::SetExitStatus (status=%i (0x%8.8x), description=%s%s%s)", 945 status, status, 946 cstr ? "\"" : "", 947 cstr ? cstr : "NULL", 948 cstr ? "\"" : ""); 949 950 // We were already in the exited state 951 if (m_private_state.GetValue() == eStateExited) 952 { 953 if (log) 954 log->Printf("Process::SetExitStatus () ignoring exit status because state was already set to eStateExited"); 955 return false; 956 } 957 958 m_exit_status = status; 959 if (cstr) 960 m_exit_string = cstr; 961 else 962 m_exit_string.clear(); 963 964 DidExit (); 965 966 SetPrivateState (eStateExited); 967 return true; 968 } 969 970 // This static callback can be used to watch for local child processes on 971 // the current host. The the child process exits, the process will be 972 // found in the global target list (we want to be completely sure that the 973 // lldb_private::Process doesn't go away before we can deliver the signal. 974 bool 975 Process::SetProcessExitStatus 976 ( 977 void *callback_baton, 978 lldb::pid_t pid, 979 int signo, // Zero for no signal 980 int exit_status // Exit value of process if signal is zero 981 ) 982 { 983 if (signo == 0 || exit_status) 984 { 985 TargetSP target_sp(Debugger::FindTargetWithProcessID (pid)); 986 if (target_sp) 987 { 988 ProcessSP process_sp (target_sp->GetProcessSP()); 989 if (process_sp) 990 { 991 const char *signal_cstr = NULL; 992 if (signo) 993 signal_cstr = process_sp->GetUnixSignals().GetSignalAsCString (signo); 994 995 process_sp->SetExitStatus (exit_status, signal_cstr); 996 } 997 } 998 return true; 999 } 1000 return false; 1001 } 1002 1003 1004 uint32_t 1005 Process::GetNextThreadIndexID () 1006 { 1007 return ++m_thread_index_id; 1008 } 1009 1010 StateType 1011 Process::GetState() 1012 { 1013 // If any other threads access this we will need a mutex for it 1014 return m_public_state.GetValue (); 1015 } 1016 1017 void 1018 Process::SetPublicState (StateType new_state) 1019 { 1020 LogSP log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_STATE | LIBLLDB_LOG_PROCESS)); 1021 if (log) 1022 log->Printf("Process::SetPublicState (%s)", StateAsCString(new_state)); 1023 m_public_state.SetValue (new_state); 1024 } 1025 1026 StateType 1027 Process::GetPrivateState () 1028 { 1029 return m_private_state.GetValue(); 1030 } 1031 1032 void 1033 Process::SetPrivateState (StateType new_state) 1034 { 1035 LogSP log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_STATE | LIBLLDB_LOG_PROCESS)); 1036 bool state_changed = false; 1037 1038 if (log) 1039 log->Printf("Process::SetPrivateState (%s)", StateAsCString(new_state)); 1040 1041 Mutex::Locker locker(m_private_state.GetMutex()); 1042 1043 const StateType old_state = m_private_state.GetValueNoLock (); 1044 state_changed = old_state != new_state; 1045 if (state_changed) 1046 { 1047 m_private_state.SetValueNoLock (new_state); 1048 if (StateIsStoppedState(new_state)) 1049 { 1050 m_stop_id++; 1051 m_memory_cache.Clear(); 1052 if (log) 1053 log->Printf("Process::SetPrivateState (%s) stop_id = %u", StateAsCString(new_state), m_stop_id); 1054 } 1055 // Use our target to get a shared pointer to ourselves... 1056 m_private_state_broadcaster.BroadcastEvent (eBroadcastBitStateChanged, new ProcessEventData (GetTarget().GetProcessSP(), new_state)); 1057 } 1058 else 1059 { 1060 if (log) 1061 log->Printf("Process::SetPrivateState (%s) state didn't change. Ignoring...", StateAsCString(new_state), StateAsCString(old_state)); 1062 } 1063 } 1064 1065 1066 uint32_t 1067 Process::GetStopID() const 1068 { 1069 return m_stop_id; 1070 } 1071 1072 addr_t 1073 Process::GetImageInfoAddress() 1074 { 1075 return LLDB_INVALID_ADDRESS; 1076 } 1077 1078 //---------------------------------------------------------------------- 1079 // LoadImage 1080 // 1081 // This function provides a default implementation that works for most 1082 // unix variants. Any Process subclasses that need to do shared library 1083 // loading differently should override LoadImage and UnloadImage and 1084 // do what is needed. 1085 //---------------------------------------------------------------------- 1086 uint32_t 1087 Process::LoadImage (const FileSpec &image_spec, Error &error) 1088 { 1089 DynamicLoader *loader = GetDynamicLoader(); 1090 if (loader) 1091 { 1092 error = loader->CanLoadImage(); 1093 if (error.Fail()) 1094 return LLDB_INVALID_IMAGE_TOKEN; 1095 } 1096 1097 if (error.Success()) 1098 { 1099 ThreadSP thread_sp(GetThreadList ().GetSelectedThread()); 1100 if (thread_sp == NULL) 1101 thread_sp = GetThreadList ().GetThreadAtIndex(0, true); 1102 1103 if (thread_sp) 1104 { 1105 StackFrameSP frame_sp (thread_sp->GetStackFrameAtIndex (0)); 1106 1107 if (frame_sp) 1108 { 1109 ExecutionContext exe_ctx; 1110 frame_sp->CalculateExecutionContext (exe_ctx); 1111 bool unwind_on_error = true; 1112 StreamString expr; 1113 char path[PATH_MAX]; 1114 image_spec.GetPath(path, sizeof(path)); 1115 expr.Printf("dlopen (\"%s\", 2)", path); 1116 const char *prefix = "extern \"C\" void* dlopen (const char *path, int mode);\n"; 1117 lldb::ValueObjectSP result_valobj_sp; 1118 ClangUserExpression::Evaluate (exe_ctx, unwind_on_error, expr.GetData(), prefix, result_valobj_sp); 1119 if (result_valobj_sp->GetError().Success()) 1120 { 1121 Scalar scalar; 1122 if (result_valobj_sp->ResolveValue (scalar)) 1123 { 1124 addr_t image_ptr = scalar.ULongLong(LLDB_INVALID_ADDRESS); 1125 if (image_ptr != 0 && image_ptr != LLDB_INVALID_ADDRESS) 1126 { 1127 uint32_t image_token = m_image_tokens.size(); 1128 m_image_tokens.push_back (image_ptr); 1129 return image_token; 1130 } 1131 } 1132 } 1133 } 1134 } 1135 } 1136 return LLDB_INVALID_IMAGE_TOKEN; 1137 } 1138 1139 //---------------------------------------------------------------------- 1140 // UnloadImage 1141 // 1142 // This function provides a default implementation that works for most 1143 // unix variants. Any Process subclasses that need to do shared library 1144 // loading differently should override LoadImage and UnloadImage and 1145 // do what is needed. 1146 //---------------------------------------------------------------------- 1147 Error 1148 Process::UnloadImage (uint32_t image_token) 1149 { 1150 Error error; 1151 if (image_token < m_image_tokens.size()) 1152 { 1153 const addr_t image_addr = m_image_tokens[image_token]; 1154 if (image_addr == LLDB_INVALID_ADDRESS) 1155 { 1156 error.SetErrorString("image already unloaded"); 1157 } 1158 else 1159 { 1160 DynamicLoader *loader = GetDynamicLoader(); 1161 if (loader) 1162 error = loader->CanLoadImage(); 1163 1164 if (error.Success()) 1165 { 1166 ThreadSP thread_sp(GetThreadList ().GetSelectedThread()); 1167 if (thread_sp == NULL) 1168 thread_sp = GetThreadList ().GetThreadAtIndex(0, true); 1169 1170 if (thread_sp) 1171 { 1172 StackFrameSP frame_sp (thread_sp->GetStackFrameAtIndex (0)); 1173 1174 if (frame_sp) 1175 { 1176 ExecutionContext exe_ctx; 1177 frame_sp->CalculateExecutionContext (exe_ctx); 1178 bool unwind_on_error = true; 1179 StreamString expr; 1180 expr.Printf("dlclose ((void *)0x%llx)", image_addr); 1181 const char *prefix = "extern \"C\" int dlclose(void* handle);\n"; 1182 lldb::ValueObjectSP result_valobj_sp; 1183 ClangUserExpression::Evaluate (exe_ctx, unwind_on_error, expr.GetData(), prefix, result_valobj_sp); 1184 if (result_valobj_sp->GetError().Success()) 1185 { 1186 Scalar scalar; 1187 if (result_valobj_sp->ResolveValue (scalar)) 1188 { 1189 if (scalar.UInt(1)) 1190 { 1191 error.SetErrorStringWithFormat("expression failed: \"%s\"", expr.GetData()); 1192 } 1193 else 1194 { 1195 m_image_tokens[image_token] = LLDB_INVALID_ADDRESS; 1196 } 1197 } 1198 } 1199 else 1200 { 1201 error = result_valobj_sp->GetError(); 1202 } 1203 } 1204 } 1205 } 1206 } 1207 } 1208 else 1209 { 1210 error.SetErrorString("invalid image token"); 1211 } 1212 return error; 1213 } 1214 1215 const lldb::ABISP & 1216 Process::GetABI() 1217 { 1218 if (!m_abi_sp) 1219 m_abi_sp = ABI::FindPlugin(m_target.GetArchitecture()); 1220 return m_abi_sp; 1221 } 1222 1223 LanguageRuntime * 1224 Process::GetLanguageRuntime(lldb::LanguageType language) 1225 { 1226 LanguageRuntimeCollection::iterator pos; 1227 pos = m_language_runtimes.find (language); 1228 if (pos == m_language_runtimes.end()) 1229 { 1230 lldb::LanguageRuntimeSP runtime(LanguageRuntime::FindPlugin(this, language)); 1231 1232 m_language_runtimes[language] 1233 = runtime; 1234 return runtime.get(); 1235 } 1236 else 1237 return (*pos).second.get(); 1238 } 1239 1240 CPPLanguageRuntime * 1241 Process::GetCPPLanguageRuntime () 1242 { 1243 LanguageRuntime *runtime = GetLanguageRuntime(eLanguageTypeC_plus_plus); 1244 if (runtime != NULL && runtime->GetLanguageType() == eLanguageTypeC_plus_plus) 1245 return static_cast<CPPLanguageRuntime *> (runtime); 1246 return NULL; 1247 } 1248 1249 ObjCLanguageRuntime * 1250 Process::GetObjCLanguageRuntime () 1251 { 1252 LanguageRuntime *runtime = GetLanguageRuntime(eLanguageTypeObjC); 1253 if (runtime != NULL && runtime->GetLanguageType() == eLanguageTypeObjC) 1254 return static_cast<ObjCLanguageRuntime *> (runtime); 1255 return NULL; 1256 } 1257 1258 BreakpointSiteList & 1259 Process::GetBreakpointSiteList() 1260 { 1261 return m_breakpoint_site_list; 1262 } 1263 1264 const BreakpointSiteList & 1265 Process::GetBreakpointSiteList() const 1266 { 1267 return m_breakpoint_site_list; 1268 } 1269 1270 1271 void 1272 Process::DisableAllBreakpointSites () 1273 { 1274 m_breakpoint_site_list.SetEnabledForAll (false); 1275 } 1276 1277 Error 1278 Process::ClearBreakpointSiteByID (lldb::user_id_t break_id) 1279 { 1280 Error error (DisableBreakpointSiteByID (break_id)); 1281 1282 if (error.Success()) 1283 m_breakpoint_site_list.Remove(break_id); 1284 1285 return error; 1286 } 1287 1288 Error 1289 Process::DisableBreakpointSiteByID (lldb::user_id_t break_id) 1290 { 1291 Error error; 1292 BreakpointSiteSP bp_site_sp = m_breakpoint_site_list.FindByID (break_id); 1293 if (bp_site_sp) 1294 { 1295 if (bp_site_sp->IsEnabled()) 1296 error = DisableBreakpoint (bp_site_sp.get()); 1297 } 1298 else 1299 { 1300 error.SetErrorStringWithFormat("invalid breakpoint site ID: %i", break_id); 1301 } 1302 1303 return error; 1304 } 1305 1306 Error 1307 Process::EnableBreakpointSiteByID (lldb::user_id_t break_id) 1308 { 1309 Error error; 1310 BreakpointSiteSP bp_site_sp = m_breakpoint_site_list.FindByID (break_id); 1311 if (bp_site_sp) 1312 { 1313 if (!bp_site_sp->IsEnabled()) 1314 error = EnableBreakpoint (bp_site_sp.get()); 1315 } 1316 else 1317 { 1318 error.SetErrorStringWithFormat("invalid breakpoint site ID: %i", break_id); 1319 } 1320 return error; 1321 } 1322 1323 lldb::break_id_t 1324 Process::CreateBreakpointSite (BreakpointLocationSP &owner, bool use_hardware) 1325 { 1326 const addr_t load_addr = owner->GetAddress().GetOpcodeLoadAddress (&m_target); 1327 if (load_addr != LLDB_INVALID_ADDRESS) 1328 { 1329 BreakpointSiteSP bp_site_sp; 1330 1331 // Look up this breakpoint site. If it exists, then add this new owner, otherwise 1332 // create a new breakpoint site and add it. 1333 1334 bp_site_sp = m_breakpoint_site_list.FindByAddress (load_addr); 1335 1336 if (bp_site_sp) 1337 { 1338 bp_site_sp->AddOwner (owner); 1339 owner->SetBreakpointSite (bp_site_sp); 1340 return bp_site_sp->GetID(); 1341 } 1342 else 1343 { 1344 bp_site_sp.reset (new BreakpointSite (&m_breakpoint_site_list, owner, load_addr, LLDB_INVALID_THREAD_ID, use_hardware)); 1345 if (bp_site_sp) 1346 { 1347 if (EnableBreakpoint (bp_site_sp.get()).Success()) 1348 { 1349 owner->SetBreakpointSite (bp_site_sp); 1350 return m_breakpoint_site_list.Add (bp_site_sp); 1351 } 1352 } 1353 } 1354 } 1355 // We failed to enable the breakpoint 1356 return LLDB_INVALID_BREAK_ID; 1357 1358 } 1359 1360 void 1361 Process::RemoveOwnerFromBreakpointSite (lldb::user_id_t owner_id, lldb::user_id_t owner_loc_id, BreakpointSiteSP &bp_site_sp) 1362 { 1363 uint32_t num_owners = bp_site_sp->RemoveOwner (owner_id, owner_loc_id); 1364 if (num_owners == 0) 1365 { 1366 DisableBreakpoint(bp_site_sp.get()); 1367 m_breakpoint_site_list.RemoveByAddress(bp_site_sp->GetLoadAddress()); 1368 } 1369 } 1370 1371 1372 size_t 1373 Process::RemoveBreakpointOpcodesFromBuffer (addr_t bp_addr, size_t size, uint8_t *buf) const 1374 { 1375 size_t bytes_removed = 0; 1376 addr_t intersect_addr; 1377 size_t intersect_size; 1378 size_t opcode_offset; 1379 size_t idx; 1380 BreakpointSiteSP bp; 1381 1382 for (idx = 0; (bp = m_breakpoint_site_list.GetByIndex(idx)) != NULL; ++idx) 1383 { 1384 if (bp->GetType() == BreakpointSite::eSoftware) 1385 { 1386 if (bp->IntersectsRange(bp_addr, size, &intersect_addr, &intersect_size, &opcode_offset)) 1387 { 1388 assert(bp_addr <= intersect_addr && intersect_addr < bp_addr + size); 1389 assert(bp_addr < intersect_addr + intersect_size && intersect_addr + intersect_size <= bp_addr + size); 1390 assert(opcode_offset + intersect_size <= bp->GetByteSize()); 1391 size_t buf_offset = intersect_addr - bp_addr; 1392 ::memcpy(buf + buf_offset, bp->GetSavedOpcodeBytes() + opcode_offset, intersect_size); 1393 } 1394 } 1395 } 1396 return bytes_removed; 1397 } 1398 1399 1400 1401 size_t 1402 Process::GetSoftwareBreakpointTrapOpcode (BreakpointSite* bp_site) 1403 { 1404 PlatformSP platform_sp (m_target.GetPlatform()); 1405 if (platform_sp) 1406 return platform_sp->GetSoftwareBreakpointTrapOpcode (m_target, bp_site); 1407 return 0; 1408 } 1409 1410 Error 1411 Process::EnableSoftwareBreakpoint (BreakpointSite *bp_site) 1412 { 1413 Error error; 1414 assert (bp_site != NULL); 1415 LogSP log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_BREAKPOINTS)); 1416 const addr_t bp_addr = bp_site->GetLoadAddress(); 1417 if (log) 1418 log->Printf ("Process::EnableSoftwareBreakpoint (site_id = %d) addr = 0x%llx", bp_site->GetID(), (uint64_t)bp_addr); 1419 if (bp_site->IsEnabled()) 1420 { 1421 if (log) 1422 log->Printf ("Process::EnableSoftwareBreakpoint (site_id = %d) addr = 0x%llx -- already enabled", bp_site->GetID(), (uint64_t)bp_addr); 1423 return error; 1424 } 1425 1426 if (bp_addr == LLDB_INVALID_ADDRESS) 1427 { 1428 error.SetErrorString("BreakpointSite contains an invalid load address."); 1429 return error; 1430 } 1431 // Ask the lldb::Process subclass to fill in the correct software breakpoint 1432 // trap for the breakpoint site 1433 const size_t bp_opcode_size = GetSoftwareBreakpointTrapOpcode(bp_site); 1434 1435 if (bp_opcode_size == 0) 1436 { 1437 error.SetErrorStringWithFormat ("Process::GetSoftwareBreakpointTrapOpcode() returned zero, unable to get breakpoint trap for address 0x%llx.\n", bp_addr); 1438 } 1439 else 1440 { 1441 const uint8_t * const bp_opcode_bytes = bp_site->GetTrapOpcodeBytes(); 1442 1443 if (bp_opcode_bytes == NULL) 1444 { 1445 error.SetErrorString ("BreakpointSite doesn't contain a valid breakpoint trap opcode."); 1446 return error; 1447 } 1448 1449 // Save the original opcode by reading it 1450 if (DoReadMemory(bp_addr, bp_site->GetSavedOpcodeBytes(), bp_opcode_size, error) == bp_opcode_size) 1451 { 1452 // Write a software breakpoint in place of the original opcode 1453 if (DoWriteMemory(bp_addr, bp_opcode_bytes, bp_opcode_size, error) == bp_opcode_size) 1454 { 1455 uint8_t verify_bp_opcode_bytes[64]; 1456 if (DoReadMemory(bp_addr, verify_bp_opcode_bytes, bp_opcode_size, error) == bp_opcode_size) 1457 { 1458 if (::memcmp(bp_opcode_bytes, verify_bp_opcode_bytes, bp_opcode_size) == 0) 1459 { 1460 bp_site->SetEnabled(true); 1461 bp_site->SetType (BreakpointSite::eSoftware); 1462 if (log) 1463 log->Printf ("Process::EnableSoftwareBreakpoint (site_id = %d) addr = 0x%llx -- SUCCESS", 1464 bp_site->GetID(), 1465 (uint64_t)bp_addr); 1466 } 1467 else 1468 error.SetErrorString("Failed to verify the breakpoint trap in memory."); 1469 } 1470 else 1471 error.SetErrorString("Unable to read memory to verify breakpoint trap."); 1472 } 1473 else 1474 error.SetErrorString("Unable to write breakpoint trap to memory."); 1475 } 1476 else 1477 error.SetErrorString("Unable to read memory at breakpoint address."); 1478 } 1479 if (log && error.Fail()) 1480 log->Printf ("Process::EnableSoftwareBreakpoint (site_id = %d) addr = 0x%llx -- FAILED: %s", 1481 bp_site->GetID(), 1482 (uint64_t)bp_addr, 1483 error.AsCString()); 1484 return error; 1485 } 1486 1487 Error 1488 Process::DisableSoftwareBreakpoint (BreakpointSite *bp_site) 1489 { 1490 Error error; 1491 assert (bp_site != NULL); 1492 LogSP log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_BREAKPOINTS)); 1493 addr_t bp_addr = bp_site->GetLoadAddress(); 1494 lldb::user_id_t breakID = bp_site->GetID(); 1495 if (log) 1496 log->Printf ("Process::DisableBreakpoint (breakID = %d) addr = 0x%llx", breakID, (uint64_t)bp_addr); 1497 1498 if (bp_site->IsHardware()) 1499 { 1500 error.SetErrorString("Breakpoint site is a hardware breakpoint."); 1501 } 1502 else if (bp_site->IsEnabled()) 1503 { 1504 const size_t break_op_size = bp_site->GetByteSize(); 1505 const uint8_t * const break_op = bp_site->GetTrapOpcodeBytes(); 1506 if (break_op_size > 0) 1507 { 1508 // Clear a software breakoint instruction 1509 uint8_t curr_break_op[8]; 1510 assert (break_op_size <= sizeof(curr_break_op)); 1511 bool break_op_found = false; 1512 1513 // Read the breakpoint opcode 1514 if (DoReadMemory (bp_addr, curr_break_op, break_op_size, error) == break_op_size) 1515 { 1516 bool verify = false; 1517 // Make sure we have the a breakpoint opcode exists at this address 1518 if (::memcmp (curr_break_op, break_op, break_op_size) == 0) 1519 { 1520 break_op_found = true; 1521 // We found a valid breakpoint opcode at this address, now restore 1522 // the saved opcode. 1523 if (DoWriteMemory (bp_addr, bp_site->GetSavedOpcodeBytes(), break_op_size, error) == break_op_size) 1524 { 1525 verify = true; 1526 } 1527 else 1528 error.SetErrorString("Memory write failed when restoring original opcode."); 1529 } 1530 else 1531 { 1532 error.SetErrorString("Original breakpoint trap is no longer in memory."); 1533 // Set verify to true and so we can check if the original opcode has already been restored 1534 verify = true; 1535 } 1536 1537 if (verify) 1538 { 1539 uint8_t verify_opcode[8]; 1540 assert (break_op_size < sizeof(verify_opcode)); 1541 // Verify that our original opcode made it back to the inferior 1542 if (DoReadMemory (bp_addr, verify_opcode, break_op_size, error) == break_op_size) 1543 { 1544 // compare the memory we just read with the original opcode 1545 if (::memcmp (bp_site->GetSavedOpcodeBytes(), verify_opcode, break_op_size) == 0) 1546 { 1547 // SUCCESS 1548 bp_site->SetEnabled(false); 1549 if (log) 1550 log->Printf ("Process::DisableSoftwareBreakpoint (site_id = %d) addr = 0x%llx -- SUCCESS", bp_site->GetID(), (uint64_t)bp_addr); 1551 return error; 1552 } 1553 else 1554 { 1555 if (break_op_found) 1556 error.SetErrorString("Failed to restore original opcode."); 1557 } 1558 } 1559 else 1560 error.SetErrorString("Failed to read memory to verify that breakpoint trap was restored."); 1561 } 1562 } 1563 else 1564 error.SetErrorString("Unable to read memory that should contain the breakpoint trap."); 1565 } 1566 } 1567 else 1568 { 1569 if (log) 1570 log->Printf ("Process::DisableSoftwareBreakpoint (site_id = %d) addr = 0x%llx -- already disabled", bp_site->GetID(), (uint64_t)bp_addr); 1571 return error; 1572 } 1573 1574 if (log) 1575 log->Printf ("Process::DisableSoftwareBreakpoint (site_id = %d) addr = 0x%llx -- FAILED: %s", 1576 bp_site->GetID(), 1577 (uint64_t)bp_addr, 1578 error.AsCString()); 1579 return error; 1580 1581 } 1582 1583 // Comment out line below to disable memory caching 1584 #define ENABLE_MEMORY_CACHING 1585 // Uncomment to verify memory caching works after making changes to caching code 1586 //#define VERIFY_MEMORY_READS 1587 1588 #if defined (ENABLE_MEMORY_CACHING) 1589 1590 #if defined (VERIFY_MEMORY_READS) 1591 1592 size_t 1593 Process::ReadMemory (addr_t addr, void *buf, size_t size, Error &error) 1594 { 1595 // Memory caching is enabled, with debug verification 1596 if (buf && size) 1597 { 1598 // Uncomment the line below to make sure memory caching is working. 1599 // I ran this through the test suite and got no assertions, so I am 1600 // pretty confident this is working well. If any changes are made to 1601 // memory caching, uncomment the line below and test your changes! 1602 1603 // Verify all memory reads by using the cache first, then redundantly 1604 // reading the same memory from the inferior and comparing to make sure 1605 // everything is exactly the same. 1606 std::string verify_buf (size, '\0'); 1607 assert (verify_buf.size() == size); 1608 const size_t cache_bytes_read = m_memory_cache.Read (this, addr, buf, size, error); 1609 Error verify_error; 1610 const size_t verify_bytes_read = ReadMemoryFromInferior (addr, const_cast<char *>(verify_buf.data()), verify_buf.size(), verify_error); 1611 assert (cache_bytes_read == verify_bytes_read); 1612 assert (memcmp(buf, verify_buf.data(), verify_buf.size()) == 0); 1613 assert (verify_error.Success() == error.Success()); 1614 return cache_bytes_read; 1615 } 1616 return 0; 1617 } 1618 1619 #else // #if defined (VERIFY_MEMORY_READS) 1620 1621 size_t 1622 Process::ReadMemory (addr_t addr, void *buf, size_t size, Error &error) 1623 { 1624 // Memory caching enabled, no verification 1625 return m_memory_cache.Read (addr, buf, size, error); 1626 } 1627 1628 #endif // #else for #if defined (VERIFY_MEMORY_READS) 1629 1630 #else // #if defined (ENABLE_MEMORY_CACHING) 1631 1632 size_t 1633 Process::ReadMemory (addr_t addr, void *buf, size_t size, Error &error) 1634 { 1635 // Memory caching is disabled 1636 return ReadMemoryFromInferior (addr, buf, size, error); 1637 } 1638 1639 #endif // #else for #if defined (ENABLE_MEMORY_CACHING) 1640 1641 1642 size_t 1643 Process::ReadCStringFromMemory (addr_t addr, char *dst, size_t dst_max_len) 1644 { 1645 size_t total_cstr_len = 0; 1646 if (dst && dst_max_len) 1647 { 1648 // NULL out everything just to be safe 1649 memset (dst, 0, dst_max_len); 1650 Error error; 1651 addr_t curr_addr = addr; 1652 const size_t cache_line_size = m_memory_cache.GetMemoryCacheLineSize(); 1653 size_t bytes_left = dst_max_len - 1; 1654 char *curr_dst = dst; 1655 1656 while (bytes_left > 0) 1657 { 1658 addr_t cache_line_bytes_left = cache_line_size - (curr_addr % cache_line_size); 1659 addr_t bytes_to_read = std::min<addr_t>(bytes_left, cache_line_bytes_left); 1660 size_t bytes_read = ReadMemory (curr_addr, curr_dst, bytes_to_read, error); 1661 1662 if (bytes_read == 0) 1663 { 1664 dst[total_cstr_len] = '\0'; 1665 break; 1666 } 1667 const size_t len = strlen(curr_dst); 1668 1669 total_cstr_len += len; 1670 1671 if (len < bytes_to_read) 1672 break; 1673 1674 curr_dst += bytes_read; 1675 curr_addr += bytes_read; 1676 bytes_left -= bytes_read; 1677 } 1678 } 1679 return total_cstr_len; 1680 } 1681 1682 size_t 1683 Process::ReadMemoryFromInferior (addr_t addr, void *buf, size_t size, Error &error) 1684 { 1685 if (buf == NULL || size == 0) 1686 return 0; 1687 1688 size_t bytes_read = 0; 1689 uint8_t *bytes = (uint8_t *)buf; 1690 1691 while (bytes_read < size) 1692 { 1693 const size_t curr_size = size - bytes_read; 1694 const size_t curr_bytes_read = DoReadMemory (addr + bytes_read, 1695 bytes + bytes_read, 1696 curr_size, 1697 error); 1698 bytes_read += curr_bytes_read; 1699 if (curr_bytes_read == curr_size || curr_bytes_read == 0) 1700 break; 1701 } 1702 1703 // Replace any software breakpoint opcodes that fall into this range back 1704 // into "buf" before we return 1705 if (bytes_read > 0) 1706 RemoveBreakpointOpcodesFromBuffer (addr, bytes_read, (uint8_t *)buf); 1707 return bytes_read; 1708 } 1709 1710 uint64_t 1711 Process::ReadUnsignedIntegerFromMemory (lldb::addr_t vm_addr, size_t integer_byte_size, uint64_t fail_value, Error &error) 1712 { 1713 Scalar scalar; 1714 if (ReadScalarIntegerFromMemory(vm_addr, integer_byte_size, false, scalar, error)) 1715 return scalar.ULongLong(fail_value); 1716 return fail_value; 1717 } 1718 1719 addr_t 1720 Process::ReadPointerFromMemory (lldb::addr_t vm_addr, Error &error) 1721 { 1722 Scalar scalar; 1723 if (ReadScalarIntegerFromMemory(vm_addr, GetAddressByteSize(), false, scalar, error)) 1724 return scalar.ULongLong(LLDB_INVALID_ADDRESS); 1725 return LLDB_INVALID_ADDRESS; 1726 } 1727 1728 1729 bool 1730 Process::WritePointerToMemory (lldb::addr_t vm_addr, 1731 lldb::addr_t ptr_value, 1732 Error &error) 1733 { 1734 Scalar scalar; 1735 const uint32_t addr_byte_size = GetAddressByteSize(); 1736 if (addr_byte_size <= 4) 1737 scalar = (uint32_t)ptr_value; 1738 else 1739 scalar = ptr_value; 1740 return WriteScalarToMemory(vm_addr, scalar, addr_byte_size, error) == addr_byte_size; 1741 } 1742 1743 size_t 1744 Process::WriteMemoryPrivate (addr_t addr, const void *buf, size_t size, Error &error) 1745 { 1746 size_t bytes_written = 0; 1747 const uint8_t *bytes = (const uint8_t *)buf; 1748 1749 while (bytes_written < size) 1750 { 1751 const size_t curr_size = size - bytes_written; 1752 const size_t curr_bytes_written = DoWriteMemory (addr + bytes_written, 1753 bytes + bytes_written, 1754 curr_size, 1755 error); 1756 bytes_written += curr_bytes_written; 1757 if (curr_bytes_written == curr_size || curr_bytes_written == 0) 1758 break; 1759 } 1760 return bytes_written; 1761 } 1762 1763 size_t 1764 Process::WriteMemory (addr_t addr, const void *buf, size_t size, Error &error) 1765 { 1766 #if defined (ENABLE_MEMORY_CACHING) 1767 m_memory_cache.Flush (addr, size); 1768 #endif 1769 1770 if (buf == NULL || size == 0) 1771 return 0; 1772 1773 // Need to bump the stop ID after writing so that ValueObjects will know to re-read themselves. 1774 // FUTURE: Doing this should be okay, but if anybody else gets upset about the stop_id changing when 1775 // the target hasn't run, then we will need to add a "memory generation" as well as a stop_id... 1776 m_stop_id++; 1777 1778 // We need to write any data that would go where any current software traps 1779 // (enabled software breakpoints) any software traps (breakpoints) that we 1780 // may have placed in our tasks memory. 1781 1782 BreakpointSiteList::collection::const_iterator iter = m_breakpoint_site_list.GetMap()->lower_bound (addr); 1783 BreakpointSiteList::collection::const_iterator end = m_breakpoint_site_list.GetMap()->end(); 1784 1785 if (iter == end || iter->second->GetLoadAddress() > addr + size) 1786 return WriteMemoryPrivate (addr, buf, size, error); 1787 1788 BreakpointSiteList::collection::const_iterator pos; 1789 size_t bytes_written = 0; 1790 addr_t intersect_addr = 0; 1791 size_t intersect_size = 0; 1792 size_t opcode_offset = 0; 1793 const uint8_t *ubuf = (const uint8_t *)buf; 1794 1795 for (pos = iter; pos != end; ++pos) 1796 { 1797 BreakpointSiteSP bp; 1798 bp = pos->second; 1799 1800 assert(bp->IntersectsRange(addr, size, &intersect_addr, &intersect_size, &opcode_offset)); 1801 assert(addr <= intersect_addr && intersect_addr < addr + size); 1802 assert(addr < intersect_addr + intersect_size && intersect_addr + intersect_size <= addr + size); 1803 assert(opcode_offset + intersect_size <= bp->GetByteSize()); 1804 1805 // Check for bytes before this breakpoint 1806 const addr_t curr_addr = addr + bytes_written; 1807 if (intersect_addr > curr_addr) 1808 { 1809 // There are some bytes before this breakpoint that we need to 1810 // just write to memory 1811 size_t curr_size = intersect_addr - curr_addr; 1812 size_t curr_bytes_written = WriteMemoryPrivate (curr_addr, 1813 ubuf + bytes_written, 1814 curr_size, 1815 error); 1816 bytes_written += curr_bytes_written; 1817 if (curr_bytes_written != curr_size) 1818 { 1819 // We weren't able to write all of the requested bytes, we 1820 // are done looping and will return the number of bytes that 1821 // we have written so far. 1822 break; 1823 } 1824 } 1825 1826 // Now write any bytes that would cover up any software breakpoints 1827 // directly into the breakpoint opcode buffer 1828 ::memcpy(bp->GetSavedOpcodeBytes() + opcode_offset, ubuf + bytes_written, intersect_size); 1829 bytes_written += intersect_size; 1830 } 1831 1832 // Write any remaining bytes after the last breakpoint if we have any left 1833 if (bytes_written < size) 1834 bytes_written += WriteMemoryPrivate (addr + bytes_written, 1835 ubuf + bytes_written, 1836 size - bytes_written, 1837 error); 1838 1839 return bytes_written; 1840 } 1841 1842 size_t 1843 Process::WriteScalarToMemory (addr_t addr, const Scalar &scalar, uint32_t byte_size, Error &error) 1844 { 1845 if (byte_size == UINT32_MAX) 1846 byte_size = scalar.GetByteSize(); 1847 if (byte_size > 0) 1848 { 1849 uint8_t buf[32]; 1850 const size_t mem_size = scalar.GetAsMemoryData (buf, byte_size, GetByteOrder(), error); 1851 if (mem_size > 0) 1852 return WriteMemory(addr, buf, mem_size, error); 1853 else 1854 error.SetErrorString ("failed to get scalar as memory data"); 1855 } 1856 else 1857 { 1858 error.SetErrorString ("invalid scalar value"); 1859 } 1860 return 0; 1861 } 1862 1863 size_t 1864 Process::ReadScalarIntegerFromMemory (addr_t addr, 1865 uint32_t byte_size, 1866 bool is_signed, 1867 Scalar &scalar, 1868 Error &error) 1869 { 1870 uint64_t uval; 1871 1872 if (byte_size <= sizeof(uval)) 1873 { 1874 size_t bytes_read = ReadMemory (addr, &uval, byte_size, error); 1875 if (bytes_read == byte_size) 1876 { 1877 DataExtractor data (&uval, sizeof(uval), GetByteOrder(), GetAddressByteSize()); 1878 uint32_t offset = 0; 1879 if (byte_size <= 4) 1880 scalar = data.GetMaxU32 (&offset, byte_size); 1881 else 1882 scalar = data.GetMaxU64 (&offset, byte_size); 1883 1884 if (is_signed) 1885 scalar.SignExtend(byte_size * 8); 1886 return bytes_read; 1887 } 1888 } 1889 else 1890 { 1891 error.SetErrorStringWithFormat ("byte size of %u is too large for integer scalar type", byte_size); 1892 } 1893 return 0; 1894 } 1895 1896 #define USE_ALLOCATE_MEMORY_CACHE 1 1897 addr_t 1898 Process::AllocateMemory(size_t size, uint32_t permissions, Error &error) 1899 { 1900 #if defined (USE_ALLOCATE_MEMORY_CACHE) 1901 return m_allocated_memory_cache.AllocateMemory(size, permissions, error); 1902 #else 1903 addr_t allocated_addr = DoAllocateMemory (size, permissions, error); 1904 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS)); 1905 if (log) 1906 log->Printf("Process::AllocateMemory(size=%4zu, permissions=%s) => 0x%16.16llx (m_stop_id = %u)", 1907 size, 1908 GetPermissionsAsCString (permissions), 1909 (uint64_t)allocated_addr, 1910 m_stop_id); 1911 return allocated_addr; 1912 #endif 1913 } 1914 1915 Error 1916 Process::DeallocateMemory (addr_t ptr) 1917 { 1918 Error error; 1919 #if defined (USE_ALLOCATE_MEMORY_CACHE) 1920 if (!m_allocated_memory_cache.DeallocateMemory(ptr)) 1921 { 1922 error.SetErrorStringWithFormat ("deallocation of memory at 0x%llx failed.", (uint64_t)ptr); 1923 } 1924 #else 1925 error = DoDeallocateMemory (ptr); 1926 1927 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS)); 1928 if (log) 1929 log->Printf("Process::DeallocateMemory(addr=0x%16.16llx) => err = %s (m_stop_id = %u)", 1930 ptr, 1931 error.AsCString("SUCCESS"), 1932 m_stop_id); 1933 #endif 1934 return error; 1935 } 1936 1937 1938 Error 1939 Process::EnableWatchpoint (WatchpointLocation *watchpoint) 1940 { 1941 Error error; 1942 error.SetErrorString("watchpoints are not supported"); 1943 return error; 1944 } 1945 1946 Error 1947 Process::DisableWatchpoint (WatchpointLocation *watchpoint) 1948 { 1949 Error error; 1950 error.SetErrorString("watchpoints are not supported"); 1951 return error; 1952 } 1953 1954 StateType 1955 Process::WaitForProcessStopPrivate (const TimeValue *timeout, EventSP &event_sp) 1956 { 1957 StateType state; 1958 // Now wait for the process to launch and return control to us, and then 1959 // call DidLaunch: 1960 while (1) 1961 { 1962 event_sp.reset(); 1963 state = WaitForStateChangedEventsPrivate (timeout, event_sp); 1964 1965 if (StateIsStoppedState(state)) 1966 break; 1967 1968 // If state is invalid, then we timed out 1969 if (state == eStateInvalid) 1970 break; 1971 1972 if (event_sp) 1973 HandlePrivateEvent (event_sp); 1974 } 1975 return state; 1976 } 1977 1978 Error 1979 Process::Launch 1980 ( 1981 char const *argv[], 1982 char const *envp[], 1983 uint32_t launch_flags, 1984 const char *stdin_path, 1985 const char *stdout_path, 1986 const char *stderr_path, 1987 const char *working_directory 1988 ) 1989 { 1990 Error error; 1991 m_abi_sp.reset(); 1992 m_dyld_ap.reset(); 1993 m_process_input_reader.reset(); 1994 1995 Module *exe_module = m_target.GetExecutableModule().get(); 1996 if (exe_module) 1997 { 1998 char local_exec_file_path[PATH_MAX]; 1999 char platform_exec_file_path[PATH_MAX]; 2000 exe_module->GetFileSpec().GetPath(local_exec_file_path, sizeof(local_exec_file_path)); 2001 exe_module->GetPlatformFileSpec().GetPath(platform_exec_file_path, sizeof(platform_exec_file_path)); 2002 if (exe_module->GetFileSpec().Exists()) 2003 { 2004 if (PrivateStateThreadIsValid ()) 2005 PausePrivateStateThread (); 2006 2007 error = WillLaunch (exe_module); 2008 if (error.Success()) 2009 { 2010 SetPublicState (eStateLaunching); 2011 // The args coming in should not contain the application name, the 2012 // lldb_private::Process class will add this in case the executable 2013 // gets resolved to a different file than was given on the command 2014 // line (like when an applicaiton bundle is specified and will 2015 // resolve to the contained exectuable file, or the file given was 2016 // a symlink or other file system link that resolves to a different 2017 // file). 2018 2019 // Get the resolved exectuable path 2020 2021 // Make a new argument vector 2022 std::vector<const char *> exec_path_plus_argv; 2023 // Append the resolved executable path 2024 exec_path_plus_argv.push_back (platform_exec_file_path); 2025 2026 // Push all args if there are any 2027 if (argv) 2028 { 2029 for (int i = 0; argv[i]; ++i) 2030 exec_path_plus_argv.push_back(argv[i]); 2031 } 2032 2033 // Push a NULL to terminate the args. 2034 exec_path_plus_argv.push_back(NULL); 2035 2036 // Now launch using these arguments. 2037 error = DoLaunch (exe_module, 2038 exec_path_plus_argv.empty() ? NULL : &exec_path_plus_argv.front(), 2039 envp, 2040 launch_flags, 2041 stdin_path, 2042 stdout_path, 2043 stderr_path, 2044 working_directory); 2045 2046 if (error.Fail()) 2047 { 2048 if (GetID() != LLDB_INVALID_PROCESS_ID) 2049 { 2050 SetID (LLDB_INVALID_PROCESS_ID); 2051 const char *error_string = error.AsCString(); 2052 if (error_string == NULL) 2053 error_string = "launch failed"; 2054 SetExitStatus (-1, error_string); 2055 } 2056 } 2057 else 2058 { 2059 EventSP event_sp; 2060 StateType state = WaitForProcessStopPrivate(NULL, event_sp); 2061 2062 if (state == eStateStopped || state == eStateCrashed) 2063 { 2064 2065 DidLaunch (); 2066 2067 m_dyld_ap.reset (DynamicLoader::FindPlugin(this, NULL)); 2068 if (m_dyld_ap.get()) 2069 m_dyld_ap->DidLaunch(); 2070 2071 // This delays passing the stopped event to listeners till DidLaunch gets 2072 // a chance to complete... 2073 HandlePrivateEvent (event_sp); 2074 2075 if (PrivateStateThreadIsValid ()) 2076 ResumePrivateStateThread (); 2077 else 2078 StartPrivateStateThread (); 2079 } 2080 else if (state == eStateExited) 2081 { 2082 // We exited while trying to launch somehow. Don't call DidLaunch as that's 2083 // not likely to work, and return an invalid pid. 2084 HandlePrivateEvent (event_sp); 2085 } 2086 } 2087 } 2088 } 2089 else 2090 { 2091 error.SetErrorStringWithFormat("File doesn't exist: '%s'.\n", local_exec_file_path); 2092 } 2093 } 2094 return error; 2095 } 2096 2097 Process::NextEventAction::EventActionResult 2098 Process::AttachCompletionHandler::PerformAction (lldb::EventSP &event_sp) 2099 { 2100 StateType state = ProcessEventData::GetStateFromEvent (event_sp.get()); 2101 switch (state) 2102 { 2103 case eStateRunning: 2104 case eStateConnected: 2105 return eEventActionRetry; 2106 2107 case eStateStopped: 2108 case eStateCrashed: 2109 { 2110 // During attach, prior to sending the eStateStopped event, 2111 // lldb_private::Process subclasses must set the process must set 2112 // the new process ID. 2113 assert (m_process->GetID() != LLDB_INVALID_PROCESS_ID); 2114 m_process->CompleteAttach (); 2115 return eEventActionSuccess; 2116 } 2117 2118 2119 break; 2120 default: 2121 case eStateExited: 2122 case eStateInvalid: 2123 m_exit_string.assign ("No valid Process"); 2124 return eEventActionExit; 2125 break; 2126 } 2127 } 2128 2129 Process::NextEventAction::EventActionResult 2130 Process::AttachCompletionHandler::HandleBeingInterrupted() 2131 { 2132 return eEventActionSuccess; 2133 } 2134 2135 const char * 2136 Process::AttachCompletionHandler::GetExitString () 2137 { 2138 return m_exit_string.c_str(); 2139 } 2140 2141 Error 2142 Process::Attach (lldb::pid_t attach_pid) 2143 { 2144 2145 m_abi_sp.reset(); 2146 m_process_input_reader.reset(); 2147 2148 // Find the process and its architecture. Make sure it matches the architecture 2149 // of the current Target, and if not adjust it. 2150 2151 ProcessInstanceInfo process_info; 2152 PlatformSP platform_sp (m_target.GetDebugger().GetPlatformList().GetSelectedPlatform ()); 2153 if (platform_sp) 2154 { 2155 if (platform_sp->GetProcessInfo (attach_pid, process_info)) 2156 { 2157 const ArchSpec &process_arch = process_info.GetArchitecture(); 2158 if (process_arch.IsValid()) 2159 GetTarget().SetArchitecture(process_arch); 2160 } 2161 } 2162 2163 m_dyld_ap.reset(); 2164 2165 Error error (WillAttachToProcessWithID(attach_pid)); 2166 if (error.Success()) 2167 { 2168 SetPublicState (eStateAttaching); 2169 2170 error = DoAttachToProcessWithID (attach_pid); 2171 if (error.Success()) 2172 { 2173 SetNextEventAction(new Process::AttachCompletionHandler(this)); 2174 StartPrivateStateThread(); 2175 } 2176 else 2177 { 2178 if (GetID() != LLDB_INVALID_PROCESS_ID) 2179 { 2180 SetID (LLDB_INVALID_PROCESS_ID); 2181 const char *error_string = error.AsCString(); 2182 if (error_string == NULL) 2183 error_string = "attach failed"; 2184 2185 SetExitStatus(-1, error_string); 2186 } 2187 } 2188 } 2189 return error; 2190 } 2191 2192 Error 2193 Process::Attach (const char *process_name, bool wait_for_launch) 2194 { 2195 m_abi_sp.reset(); 2196 m_process_input_reader.reset(); 2197 2198 // Find the process and its architecture. Make sure it matches the architecture 2199 // of the current Target, and if not adjust it. 2200 Error error; 2201 2202 if (!wait_for_launch) 2203 { 2204 ProcessInstanceInfoList process_infos; 2205 PlatformSP platform_sp (m_target.GetDebugger().GetPlatformList().GetSelectedPlatform ()); 2206 if (platform_sp) 2207 { 2208 ProcessInstanceInfoMatch match_info; 2209 match_info.GetProcessInfo().SetName(process_name); 2210 match_info.SetNameMatchType (eNameMatchEquals); 2211 platform_sp->FindProcesses (match_info, process_infos); 2212 if (process_infos.GetSize() > 1) 2213 { 2214 error.SetErrorStringWithFormat ("More than one process named %s\n", process_name); 2215 } 2216 else if (process_infos.GetSize() == 0) 2217 { 2218 error.SetErrorStringWithFormat ("Could not find a process named %s\n", process_name); 2219 } 2220 else 2221 { 2222 ProcessInstanceInfo process_info; 2223 if (process_infos.GetInfoAtIndex (0, process_info)) 2224 { 2225 const ArchSpec &process_arch = process_info.GetArchitecture(); 2226 if (process_arch.IsValid() && process_arch != GetTarget().GetArchitecture()) 2227 { 2228 // Set the architecture on the target. 2229 GetTarget().SetArchitecture (process_arch); 2230 } 2231 } 2232 } 2233 } 2234 else 2235 { 2236 error.SetErrorString ("Invalid platform"); 2237 } 2238 } 2239 2240 if (error.Success()) 2241 { 2242 m_dyld_ap.reset(); 2243 2244 error = WillAttachToProcessWithName(process_name, wait_for_launch); 2245 if (error.Success()) 2246 { 2247 SetPublicState (eStateAttaching); 2248 error = DoAttachToProcessWithName (process_name, wait_for_launch); 2249 if (error.Fail()) 2250 { 2251 if (GetID() != LLDB_INVALID_PROCESS_ID) 2252 { 2253 SetID (LLDB_INVALID_PROCESS_ID); 2254 const char *error_string = error.AsCString(); 2255 if (error_string == NULL) 2256 error_string = "attach failed"; 2257 2258 SetExitStatus(-1, error_string); 2259 } 2260 } 2261 else 2262 { 2263 SetNextEventAction(new Process::AttachCompletionHandler(this)); 2264 StartPrivateStateThread(); 2265 } 2266 } 2267 } 2268 return error; 2269 } 2270 2271 void 2272 Process::CompleteAttach () 2273 { 2274 // Let the process subclass figure out at much as it can about the process 2275 // before we go looking for a dynamic loader plug-in. 2276 DidAttach(); 2277 2278 // We have complete the attach, now it is time to find the dynamic loader 2279 // plug-in 2280 m_dyld_ap.reset (DynamicLoader::FindPlugin(this, NULL)); 2281 if (m_dyld_ap.get()) 2282 m_dyld_ap->DidAttach(); 2283 2284 // Figure out which one is the executable, and set that in our target: 2285 ModuleList &modules = m_target.GetImages(); 2286 2287 size_t num_modules = modules.GetSize(); 2288 for (int i = 0; i < num_modules; i++) 2289 { 2290 ModuleSP module_sp (modules.GetModuleAtIndex(i)); 2291 if (module_sp && module_sp->IsExecutable()) 2292 { 2293 ModuleSP target_exe_module_sp (m_target.GetExecutableModule()); 2294 if (target_exe_module_sp != module_sp) 2295 m_target.SetExecutableModule (module_sp, false); 2296 break; 2297 } 2298 } 2299 } 2300 2301 Error 2302 Process::ConnectRemote (const char *remote_url) 2303 { 2304 m_abi_sp.reset(); 2305 m_process_input_reader.reset(); 2306 2307 // Find the process and its architecture. Make sure it matches the architecture 2308 // of the current Target, and if not adjust it. 2309 2310 Error error (DoConnectRemote (remote_url)); 2311 if (error.Success()) 2312 { 2313 if (GetID() != LLDB_INVALID_PROCESS_ID) 2314 { 2315 EventSP event_sp; 2316 StateType state = WaitForProcessStopPrivate(NULL, event_sp); 2317 2318 if (state == eStateStopped || state == eStateCrashed) 2319 { 2320 // If we attached and actually have a process on the other end, then 2321 // this ended up being the equivalent of an attach. 2322 CompleteAttach (); 2323 2324 // This delays passing the stopped event to listeners till 2325 // CompleteAttach gets a chance to complete... 2326 HandlePrivateEvent (event_sp); 2327 2328 } 2329 } 2330 2331 if (PrivateStateThreadIsValid ()) 2332 ResumePrivateStateThread (); 2333 else 2334 StartPrivateStateThread (); 2335 } 2336 return error; 2337 } 2338 2339 2340 Error 2341 Process::Resume () 2342 { 2343 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS)); 2344 if (log) 2345 log->Printf("Process::Resume() m_stop_id = %u, public state: %s private state: %s", 2346 m_stop_id, 2347 StateAsCString(m_public_state.GetValue()), 2348 StateAsCString(m_private_state.GetValue())); 2349 2350 Error error (WillResume()); 2351 // Tell the process it is about to resume before the thread list 2352 if (error.Success()) 2353 { 2354 // Now let the thread list know we are about to resume so it 2355 // can let all of our threads know that they are about to be 2356 // resumed. Threads will each be called with 2357 // Thread::WillResume(StateType) where StateType contains the state 2358 // that they are supposed to have when the process is resumed 2359 // (suspended/running/stepping). Threads should also check 2360 // their resume signal in lldb::Thread::GetResumeSignal() 2361 // to see if they are suppoed to start back up with a signal. 2362 if (m_thread_list.WillResume()) 2363 { 2364 error = DoResume(); 2365 if (error.Success()) 2366 { 2367 DidResume(); 2368 m_thread_list.DidResume(); 2369 if (log) 2370 log->Printf ("Process thinks the process has resumed."); 2371 } 2372 } 2373 else 2374 { 2375 error.SetErrorStringWithFormat("Process::WillResume() thread list returned false after WillResume"); 2376 } 2377 } 2378 else if (log) 2379 log->Printf ("Process::WillResume() got an error \"%s\".", error.AsCString("<unknown error>")); 2380 return error; 2381 } 2382 2383 Error 2384 Process::Halt () 2385 { 2386 // Pause our private state thread so we can ensure no one else eats 2387 // the stop event out from under us. 2388 Listener halt_listener ("lldb.process.halt_listener"); 2389 HijackPrivateProcessEvents(&halt_listener); 2390 2391 EventSP event_sp; 2392 Error error (WillHalt()); 2393 2394 if (error.Success()) 2395 { 2396 2397 bool caused_stop = false; 2398 2399 // Ask the process subclass to actually halt our process 2400 error = DoHalt(caused_stop); 2401 if (error.Success()) 2402 { 2403 if (m_public_state.GetValue() == eStateAttaching) 2404 { 2405 SetExitStatus(SIGKILL, "Cancelled async attach."); 2406 Destroy (); 2407 } 2408 else 2409 { 2410 // If "caused_stop" is true, then DoHalt stopped the process. If 2411 // "caused_stop" is false, the process was already stopped. 2412 // If the DoHalt caused the process to stop, then we want to catch 2413 // this event and set the interrupted bool to true before we pass 2414 // this along so clients know that the process was interrupted by 2415 // a halt command. 2416 if (caused_stop) 2417 { 2418 // Wait for 1 second for the process to stop. 2419 TimeValue timeout_time; 2420 timeout_time = TimeValue::Now(); 2421 timeout_time.OffsetWithSeconds(1); 2422 bool got_event = halt_listener.WaitForEvent (&timeout_time, event_sp); 2423 StateType state = ProcessEventData::GetStateFromEvent(event_sp.get()); 2424 2425 if (!got_event || state == eStateInvalid) 2426 { 2427 // We timeout out and didn't get a stop event... 2428 error.SetErrorStringWithFormat ("Halt timed out. State = %s", StateAsCString(GetState())); 2429 } 2430 else 2431 { 2432 if (StateIsStoppedState (state)) 2433 { 2434 // We caused the process to interrupt itself, so mark this 2435 // as such in the stop event so clients can tell an interrupted 2436 // process from a natural stop 2437 ProcessEventData::SetInterruptedInEvent (event_sp.get(), true); 2438 } 2439 else 2440 { 2441 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS)); 2442 if (log) 2443 log->Printf("Process::Halt() failed to stop, state is: %s", StateAsCString(state)); 2444 error.SetErrorString ("Did not get stopped event after halt."); 2445 } 2446 } 2447 } 2448 DidHalt(); 2449 } 2450 } 2451 } 2452 // Resume our private state thread before we post the event (if any) 2453 RestorePrivateProcessEvents(); 2454 2455 // Post any event we might have consumed. If all goes well, we will have 2456 // stopped the process, intercepted the event and set the interrupted 2457 // bool in the event. Post it to the private event queue and that will end up 2458 // correctly setting the state. 2459 if (event_sp) 2460 m_private_state_broadcaster.BroadcastEvent(event_sp); 2461 2462 return error; 2463 } 2464 2465 Error 2466 Process::Detach () 2467 { 2468 Error error (WillDetach()); 2469 2470 if (error.Success()) 2471 { 2472 DisableAllBreakpointSites(); 2473 error = DoDetach(); 2474 if (error.Success()) 2475 { 2476 DidDetach(); 2477 StopPrivateStateThread(); 2478 } 2479 } 2480 return error; 2481 } 2482 2483 Error 2484 Process::Destroy () 2485 { 2486 Error error (WillDestroy()); 2487 if (error.Success()) 2488 { 2489 DisableAllBreakpointSites(); 2490 error = DoDestroy(); 2491 if (error.Success()) 2492 { 2493 DidDestroy(); 2494 StopPrivateStateThread(); 2495 } 2496 m_stdio_communication.StopReadThread(); 2497 m_stdio_communication.Disconnect(); 2498 if (m_process_input_reader && m_process_input_reader->IsActive()) 2499 m_target.GetDebugger().PopInputReader (m_process_input_reader); 2500 if (m_process_input_reader) 2501 m_process_input_reader.reset(); 2502 } 2503 return error; 2504 } 2505 2506 Error 2507 Process::Signal (int signal) 2508 { 2509 Error error (WillSignal()); 2510 if (error.Success()) 2511 { 2512 error = DoSignal(signal); 2513 if (error.Success()) 2514 DidSignal(); 2515 } 2516 return error; 2517 } 2518 2519 lldb::ByteOrder 2520 Process::GetByteOrder () const 2521 { 2522 return m_target.GetArchitecture().GetByteOrder(); 2523 } 2524 2525 uint32_t 2526 Process::GetAddressByteSize () const 2527 { 2528 return m_target.GetArchitecture().GetAddressByteSize(); 2529 } 2530 2531 2532 bool 2533 Process::ShouldBroadcastEvent (Event *event_ptr) 2534 { 2535 const StateType state = Process::ProcessEventData::GetStateFromEvent (event_ptr); 2536 bool return_value = true; 2537 LogSP log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EVENTS)); 2538 2539 switch (state) 2540 { 2541 case eStateConnected: 2542 case eStateAttaching: 2543 case eStateLaunching: 2544 case eStateDetached: 2545 case eStateExited: 2546 case eStateUnloaded: 2547 // These events indicate changes in the state of the debugging session, always report them. 2548 return_value = true; 2549 break; 2550 case eStateInvalid: 2551 // We stopped for no apparent reason, don't report it. 2552 return_value = false; 2553 break; 2554 case eStateRunning: 2555 case eStateStepping: 2556 // If we've started the target running, we handle the cases where we 2557 // are already running and where there is a transition from stopped to 2558 // running differently. 2559 // running -> running: Automatically suppress extra running events 2560 // stopped -> running: Report except when there is one or more no votes 2561 // and no yes votes. 2562 SynchronouslyNotifyStateChanged (state); 2563 switch (m_public_state.GetValue()) 2564 { 2565 case eStateRunning: 2566 case eStateStepping: 2567 // We always suppress multiple runnings with no PUBLIC stop in between. 2568 return_value = false; 2569 break; 2570 default: 2571 // TODO: make this work correctly. For now always report 2572 // run if we aren't running so we don't miss any runnning 2573 // events. If I run the lldb/test/thread/a.out file and 2574 // break at main.cpp:58, run and hit the breakpoints on 2575 // multiple threads, then somehow during the stepping over 2576 // of all breakpoints no run gets reported. 2577 return_value = true; 2578 2579 // This is a transition from stop to run. 2580 switch (m_thread_list.ShouldReportRun (event_ptr)) 2581 { 2582 case eVoteYes: 2583 case eVoteNoOpinion: 2584 return_value = true; 2585 break; 2586 case eVoteNo: 2587 return_value = false; 2588 break; 2589 } 2590 break; 2591 } 2592 break; 2593 case eStateStopped: 2594 case eStateCrashed: 2595 case eStateSuspended: 2596 { 2597 // We've stopped. First see if we're going to restart the target. 2598 // If we are going to stop, then we always broadcast the event. 2599 // If we aren't going to stop, let the thread plans decide if we're going to report this event. 2600 // If no thread has an opinion, we don't report it. 2601 if (ProcessEventData::GetInterruptedFromEvent (event_ptr)) 2602 { 2603 if (log) 2604 log->Printf ("Process::ShouldBroadcastEvent (%p) stopped due to an interrupt, state: %s", event_ptr, StateAsCString(state)); 2605 return true; 2606 } 2607 else 2608 { 2609 RefreshStateAfterStop (); 2610 2611 if (m_thread_list.ShouldStop (event_ptr) == false) 2612 { 2613 switch (m_thread_list.ShouldReportStop (event_ptr)) 2614 { 2615 case eVoteYes: 2616 Process::ProcessEventData::SetRestartedInEvent (event_ptr, true); 2617 // Intentional fall-through here. 2618 case eVoteNoOpinion: 2619 case eVoteNo: 2620 return_value = false; 2621 break; 2622 } 2623 2624 if (log) 2625 log->Printf ("Process::ShouldBroadcastEvent (%p) Restarting process from state: %s", event_ptr, StateAsCString(state)); 2626 Resume (); 2627 } 2628 else 2629 { 2630 return_value = true; 2631 SynchronouslyNotifyStateChanged (state); 2632 } 2633 } 2634 } 2635 } 2636 2637 if (log) 2638 log->Printf ("Process::ShouldBroadcastEvent (%p) => %s", event_ptr, StateAsCString(state), return_value ? "YES" : "NO"); 2639 return return_value; 2640 } 2641 2642 2643 bool 2644 Process::StartPrivateStateThread () 2645 { 2646 LogSP log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EVENTS)); 2647 2648 bool already_running = PrivateStateThreadIsValid (); 2649 if (log) 2650 log->Printf ("Process::%s()%s ", __FUNCTION__, already_running ? " already running" : " starting private state thread"); 2651 2652 if (already_running) 2653 return true; 2654 2655 // Create a thread that watches our internal state and controls which 2656 // events make it to clients (into the DCProcess event queue). 2657 char thread_name[1024]; 2658 snprintf(thread_name, sizeof(thread_name), "<lldb.process.internal-state(pid=%i)>", GetID()); 2659 m_private_state_thread = Host::ThreadCreate (thread_name, Process::PrivateStateThread, this, NULL); 2660 return IS_VALID_LLDB_HOST_THREAD(m_private_state_thread); 2661 } 2662 2663 void 2664 Process::PausePrivateStateThread () 2665 { 2666 ControlPrivateStateThread (eBroadcastInternalStateControlPause); 2667 } 2668 2669 void 2670 Process::ResumePrivateStateThread () 2671 { 2672 ControlPrivateStateThread (eBroadcastInternalStateControlResume); 2673 } 2674 2675 void 2676 Process::StopPrivateStateThread () 2677 { 2678 if (PrivateStateThreadIsValid ()) 2679 ControlPrivateStateThread (eBroadcastInternalStateControlStop); 2680 } 2681 2682 void 2683 Process::ControlPrivateStateThread (uint32_t signal) 2684 { 2685 LogSP log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EVENTS)); 2686 2687 assert (signal == eBroadcastInternalStateControlStop || 2688 signal == eBroadcastInternalStateControlPause || 2689 signal == eBroadcastInternalStateControlResume); 2690 2691 if (log) 2692 log->Printf ("Process::%s (signal = %d)", __FUNCTION__, signal); 2693 2694 // Signal the private state thread. First we should copy this is case the 2695 // thread starts exiting since the private state thread will NULL this out 2696 // when it exits 2697 const lldb::thread_t private_state_thread = m_private_state_thread; 2698 if (IS_VALID_LLDB_HOST_THREAD(private_state_thread)) 2699 { 2700 TimeValue timeout_time; 2701 bool timed_out; 2702 2703 m_private_state_control_broadcaster.BroadcastEvent (signal, NULL); 2704 2705 timeout_time = TimeValue::Now(); 2706 timeout_time.OffsetWithSeconds(2); 2707 m_private_state_control_wait.WaitForValueEqualTo (true, &timeout_time, &timed_out); 2708 m_private_state_control_wait.SetValue (false, eBroadcastNever); 2709 2710 if (signal == eBroadcastInternalStateControlStop) 2711 { 2712 if (timed_out) 2713 Host::ThreadCancel (private_state_thread, NULL); 2714 2715 thread_result_t result = NULL; 2716 Host::ThreadJoin (private_state_thread, &result, NULL); 2717 m_private_state_thread = LLDB_INVALID_HOST_THREAD; 2718 } 2719 } 2720 } 2721 2722 void 2723 Process::HandlePrivateEvent (EventSP &event_sp) 2724 { 2725 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS)); 2726 2727 const StateType new_state = Process::ProcessEventData::GetStateFromEvent(event_sp.get()); 2728 2729 // First check to see if anybody wants a shot at this event: 2730 if (m_next_event_action_ap.get() != NULL) 2731 { 2732 NextEventAction::EventActionResult action_result = m_next_event_action_ap->PerformAction(event_sp); 2733 switch (action_result) 2734 { 2735 case NextEventAction::eEventActionSuccess: 2736 SetNextEventAction(NULL); 2737 break; 2738 case NextEventAction::eEventActionRetry: 2739 break; 2740 case NextEventAction::eEventActionExit: 2741 // Handle Exiting Here. If we already got an exited event, 2742 // we should just propagate it. Otherwise, swallow this event, 2743 // and set our state to exit so the next event will kill us. 2744 if (new_state != eStateExited) 2745 { 2746 // FIXME: should cons up an exited event, and discard this one. 2747 SetExitStatus(0, m_next_event_action_ap->GetExitString()); 2748 SetNextEventAction(NULL); 2749 return; 2750 } 2751 SetNextEventAction(NULL); 2752 break; 2753 } 2754 } 2755 2756 // See if we should broadcast this state to external clients? 2757 const bool should_broadcast = ShouldBroadcastEvent (event_sp.get()); 2758 2759 if (should_broadcast) 2760 { 2761 if (log) 2762 { 2763 log->Printf ("Process::%s (pid = %i) broadcasting new state %s (old state %s) to %s", 2764 __FUNCTION__, 2765 GetID(), 2766 StateAsCString(new_state), 2767 StateAsCString (GetState ()), 2768 IsHijackedForEvent(eBroadcastBitStateChanged) ? "hijacked" : "public"); 2769 } 2770 Process::ProcessEventData::SetUpdateStateOnRemoval(event_sp.get()); 2771 if (StateIsRunningState (new_state)) 2772 PushProcessInputReader (); 2773 else 2774 PopProcessInputReader (); 2775 2776 BroadcastEvent (event_sp); 2777 } 2778 else 2779 { 2780 if (log) 2781 { 2782 log->Printf ("Process::%s (pid = %i) suppressing state %s (old state %s): should_broadcast == false", 2783 __FUNCTION__, 2784 GetID(), 2785 StateAsCString(new_state), 2786 StateAsCString (GetState ()), 2787 IsHijackedForEvent(eBroadcastBitStateChanged) ? "hijacked" : "public"); 2788 } 2789 } 2790 } 2791 2792 void * 2793 Process::PrivateStateThread (void *arg) 2794 { 2795 Process *proc = static_cast<Process*> (arg); 2796 void *result = proc->RunPrivateStateThread (); 2797 return result; 2798 } 2799 2800 void * 2801 Process::RunPrivateStateThread () 2802 { 2803 bool control_only = false; 2804 m_private_state_control_wait.SetValue (false, eBroadcastNever); 2805 2806 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS)); 2807 if (log) 2808 log->Printf ("Process::%s (arg = %p, pid = %i) thread starting...", __FUNCTION__, this, GetID()); 2809 2810 bool exit_now = false; 2811 while (!exit_now) 2812 { 2813 EventSP event_sp; 2814 WaitForEventsPrivate (NULL, event_sp, control_only); 2815 if (event_sp->BroadcasterIs(&m_private_state_control_broadcaster)) 2816 { 2817 switch (event_sp->GetType()) 2818 { 2819 case eBroadcastInternalStateControlStop: 2820 exit_now = true; 2821 continue; // Go to next loop iteration so we exit without 2822 break; // doing any internal state managment below 2823 2824 case eBroadcastInternalStateControlPause: 2825 control_only = true; 2826 break; 2827 2828 case eBroadcastInternalStateControlResume: 2829 control_only = false; 2830 break; 2831 } 2832 2833 if (log) 2834 log->Printf ("Process::%s (arg = %p, pid = %i) got a control event: %d", __FUNCTION__, this, GetID(), event_sp->GetType()); 2835 2836 m_private_state_control_wait.SetValue (true, eBroadcastAlways); 2837 continue; 2838 } 2839 2840 2841 const StateType internal_state = Process::ProcessEventData::GetStateFromEvent(event_sp.get()); 2842 2843 if (internal_state != eStateInvalid) 2844 { 2845 HandlePrivateEvent (event_sp); 2846 } 2847 2848 if (internal_state == eStateInvalid || 2849 internal_state == eStateExited || 2850 internal_state == eStateDetached ) 2851 { 2852 if (log) 2853 log->Printf ("Process::%s (arg = %p, pid = %i) about to exit with internal state %s...", __FUNCTION__, this, GetID(), StateAsCString(internal_state)); 2854 2855 break; 2856 } 2857 } 2858 2859 // Verify log is still enabled before attempting to write to it... 2860 if (log) 2861 log->Printf ("Process::%s (arg = %p, pid = %i) thread exiting...", __FUNCTION__, this, GetID()); 2862 2863 m_private_state_control_wait.SetValue (true, eBroadcastAlways); 2864 m_private_state_thread = LLDB_INVALID_HOST_THREAD; 2865 return NULL; 2866 } 2867 2868 //------------------------------------------------------------------ 2869 // Process Event Data 2870 //------------------------------------------------------------------ 2871 2872 Process::ProcessEventData::ProcessEventData () : 2873 EventData (), 2874 m_process_sp (), 2875 m_state (eStateInvalid), 2876 m_restarted (false), 2877 m_update_state (0), 2878 m_interrupted (false) 2879 { 2880 } 2881 2882 Process::ProcessEventData::ProcessEventData (const ProcessSP &process_sp, StateType state) : 2883 EventData (), 2884 m_process_sp (process_sp), 2885 m_state (state), 2886 m_restarted (false), 2887 m_update_state (0), 2888 m_interrupted (false) 2889 { 2890 } 2891 2892 Process::ProcessEventData::~ProcessEventData() 2893 { 2894 } 2895 2896 const ConstString & 2897 Process::ProcessEventData::GetFlavorString () 2898 { 2899 static ConstString g_flavor ("Process::ProcessEventData"); 2900 return g_flavor; 2901 } 2902 2903 const ConstString & 2904 Process::ProcessEventData::GetFlavor () const 2905 { 2906 return ProcessEventData::GetFlavorString (); 2907 } 2908 2909 void 2910 Process::ProcessEventData::DoOnRemoval (Event *event_ptr) 2911 { 2912 // This function gets called twice for each event, once when the event gets pulled 2913 // off of the private process event queue, and then any number of times, first when it gets pulled off of 2914 // the public event queue, then other times when we're pretending that this is where we stopped at the 2915 // end of expression evaluation. m_update_state is used to distinguish these 2916 // three cases; it is 0 when we're just pulling it off for private handling, 2917 // and > 1 for expression evaluation, and we don't want to do the breakpoint command handling then. 2918 2919 if (m_update_state != 1) 2920 return; 2921 2922 m_process_sp->SetPublicState (m_state); 2923 2924 // If we're stopped and haven't restarted, then do the breakpoint commands here: 2925 if (m_state == eStateStopped && ! m_restarted) 2926 { 2927 int num_threads = m_process_sp->GetThreadList().GetSize(); 2928 int idx; 2929 2930 for (idx = 0; idx < num_threads; ++idx) 2931 { 2932 lldb::ThreadSP thread_sp = m_process_sp->GetThreadList().GetThreadAtIndex(idx); 2933 2934 StopInfoSP stop_info_sp = thread_sp->GetStopInfo (); 2935 if (stop_info_sp) 2936 { 2937 stop_info_sp->PerformAction(event_ptr); 2938 } 2939 } 2940 2941 // The stop action might restart the target. If it does, then we want to mark that in the 2942 // event so that whoever is receiving it will know to wait for the running event and reflect 2943 // that state appropriately. 2944 2945 if (m_process_sp->GetPrivateState() == eStateRunning) 2946 SetRestarted(true); 2947 else 2948 { 2949 // Finally, if we didn't restart, run the Stop Hooks here: 2950 // They might also restart the target, so watch for that. 2951 m_process_sp->GetTarget().RunStopHooks(); 2952 if (m_process_sp->GetPrivateState() == eStateRunning) 2953 SetRestarted(true); 2954 } 2955 2956 } 2957 } 2958 2959 void 2960 Process::ProcessEventData::Dump (Stream *s) const 2961 { 2962 if (m_process_sp) 2963 s->Printf(" process = %p (pid = %u), ", m_process_sp.get(), m_process_sp->GetID()); 2964 2965 s->Printf("state = %s", StateAsCString(GetState())); 2966 } 2967 2968 const Process::ProcessEventData * 2969 Process::ProcessEventData::GetEventDataFromEvent (const Event *event_ptr) 2970 { 2971 if (event_ptr) 2972 { 2973 const EventData *event_data = event_ptr->GetData(); 2974 if (event_data && event_data->GetFlavor() == ProcessEventData::GetFlavorString()) 2975 return static_cast <const ProcessEventData *> (event_ptr->GetData()); 2976 } 2977 return NULL; 2978 } 2979 2980 ProcessSP 2981 Process::ProcessEventData::GetProcessFromEvent (const Event *event_ptr) 2982 { 2983 ProcessSP process_sp; 2984 const ProcessEventData *data = GetEventDataFromEvent (event_ptr); 2985 if (data) 2986 process_sp = data->GetProcessSP(); 2987 return process_sp; 2988 } 2989 2990 StateType 2991 Process::ProcessEventData::GetStateFromEvent (const Event *event_ptr) 2992 { 2993 const ProcessEventData *data = GetEventDataFromEvent (event_ptr); 2994 if (data == NULL) 2995 return eStateInvalid; 2996 else 2997 return data->GetState(); 2998 } 2999 3000 bool 3001 Process::ProcessEventData::GetRestartedFromEvent (const Event *event_ptr) 3002 { 3003 const ProcessEventData *data = GetEventDataFromEvent (event_ptr); 3004 if (data == NULL) 3005 return false; 3006 else 3007 return data->GetRestarted(); 3008 } 3009 3010 void 3011 Process::ProcessEventData::SetRestartedInEvent (Event *event_ptr, bool new_value) 3012 { 3013 ProcessEventData *data = const_cast<ProcessEventData *>(GetEventDataFromEvent (event_ptr)); 3014 if (data != NULL) 3015 data->SetRestarted(new_value); 3016 } 3017 3018 bool 3019 Process::ProcessEventData::GetInterruptedFromEvent (const Event *event_ptr) 3020 { 3021 const ProcessEventData *data = GetEventDataFromEvent (event_ptr); 3022 if (data == NULL) 3023 return false; 3024 else 3025 return data->GetInterrupted (); 3026 } 3027 3028 void 3029 Process::ProcessEventData::SetInterruptedInEvent (Event *event_ptr, bool new_value) 3030 { 3031 ProcessEventData *data = const_cast<ProcessEventData *>(GetEventDataFromEvent (event_ptr)); 3032 if (data != NULL) 3033 data->SetInterrupted(new_value); 3034 } 3035 3036 bool 3037 Process::ProcessEventData::SetUpdateStateOnRemoval (Event *event_ptr) 3038 { 3039 ProcessEventData *data = const_cast<ProcessEventData *>(GetEventDataFromEvent (event_ptr)); 3040 if (data) 3041 { 3042 data->SetUpdateStateOnRemoval(); 3043 return true; 3044 } 3045 return false; 3046 } 3047 3048 void 3049 Process::CalculateExecutionContext (ExecutionContext &exe_ctx) 3050 { 3051 exe_ctx.target = &m_target; 3052 exe_ctx.process = this; 3053 exe_ctx.thread = NULL; 3054 exe_ctx.frame = NULL; 3055 } 3056 3057 lldb::ProcessSP 3058 Process::GetSP () 3059 { 3060 return GetTarget().GetProcessSP(); 3061 } 3062 3063 //uint32_t 3064 //Process::ListProcessesMatchingName (const char *name, StringList &matches, std::vector<lldb::pid_t> &pids) 3065 //{ 3066 // return 0; 3067 //} 3068 // 3069 //ArchSpec 3070 //Process::GetArchSpecForExistingProcess (lldb::pid_t pid) 3071 //{ 3072 // return Host::GetArchSpecForExistingProcess (pid); 3073 //} 3074 // 3075 //ArchSpec 3076 //Process::GetArchSpecForExistingProcess (const char *process_name) 3077 //{ 3078 // return Host::GetArchSpecForExistingProcess (process_name); 3079 //} 3080 // 3081 void 3082 Process::AppendSTDOUT (const char * s, size_t len) 3083 { 3084 Mutex::Locker locker (m_stdio_communication_mutex); 3085 m_stdout_data.append (s, len); 3086 3087 BroadcastEventIfUnique (eBroadcastBitSTDOUT, new ProcessEventData (GetTarget().GetProcessSP(), GetState())); 3088 } 3089 3090 void 3091 Process::STDIOReadThreadBytesReceived (void *baton, const void *src, size_t src_len) 3092 { 3093 Process *process = (Process *) baton; 3094 process->AppendSTDOUT (static_cast<const char *>(src), src_len); 3095 } 3096 3097 size_t 3098 Process::ProcessInputReaderCallback (void *baton, 3099 InputReader &reader, 3100 lldb::InputReaderAction notification, 3101 const char *bytes, 3102 size_t bytes_len) 3103 { 3104 Process *process = (Process *) baton; 3105 3106 switch (notification) 3107 { 3108 case eInputReaderActivate: 3109 break; 3110 3111 case eInputReaderDeactivate: 3112 break; 3113 3114 case eInputReaderReactivate: 3115 break; 3116 3117 case eInputReaderAsynchronousOutputWritten: 3118 break; 3119 3120 case eInputReaderGotToken: 3121 { 3122 Error error; 3123 process->PutSTDIN (bytes, bytes_len, error); 3124 } 3125 break; 3126 3127 case eInputReaderInterrupt: 3128 process->Halt (); 3129 break; 3130 3131 case eInputReaderEndOfFile: 3132 process->AppendSTDOUT ("^D", 2); 3133 break; 3134 3135 case eInputReaderDone: 3136 break; 3137 3138 } 3139 3140 return bytes_len; 3141 } 3142 3143 void 3144 Process::ResetProcessInputReader () 3145 { 3146 m_process_input_reader.reset(); 3147 } 3148 3149 void 3150 Process::SetUpProcessInputReader (int file_descriptor) 3151 { 3152 // First set up the Read Thread for reading/handling process I/O 3153 3154 std::auto_ptr<ConnectionFileDescriptor> conn_ap (new ConnectionFileDescriptor (file_descriptor, true)); 3155 3156 if (conn_ap.get()) 3157 { 3158 m_stdio_communication.SetConnection (conn_ap.release()); 3159 if (m_stdio_communication.IsConnected()) 3160 { 3161 m_stdio_communication.SetReadThreadBytesReceivedCallback (STDIOReadThreadBytesReceived, this); 3162 m_stdio_communication.StartReadThread(); 3163 3164 // Now read thread is set up, set up input reader. 3165 3166 if (!m_process_input_reader.get()) 3167 { 3168 m_process_input_reader.reset (new InputReader(m_target.GetDebugger())); 3169 Error err (m_process_input_reader->Initialize (Process::ProcessInputReaderCallback, 3170 this, 3171 eInputReaderGranularityByte, 3172 NULL, 3173 NULL, 3174 false)); 3175 3176 if (err.Fail()) 3177 m_process_input_reader.reset(); 3178 } 3179 } 3180 } 3181 } 3182 3183 void 3184 Process::PushProcessInputReader () 3185 { 3186 if (m_process_input_reader && !m_process_input_reader->IsActive()) 3187 m_target.GetDebugger().PushInputReader (m_process_input_reader); 3188 } 3189 3190 void 3191 Process::PopProcessInputReader () 3192 { 3193 if (m_process_input_reader && m_process_input_reader->IsActive()) 3194 m_target.GetDebugger().PopInputReader (m_process_input_reader); 3195 } 3196 3197 // The process needs to know about installed plug-ins 3198 void 3199 Process::SettingsInitialize () 3200 { 3201 static std::vector<OptionEnumValueElement> g_plugins; 3202 3203 int i=0; 3204 const char *name; 3205 OptionEnumValueElement option_enum; 3206 while ((name = PluginManager::GetProcessPluginNameAtIndex (i)) != NULL) 3207 { 3208 if (name) 3209 { 3210 option_enum.value = i; 3211 option_enum.string_value = name; 3212 option_enum.usage = PluginManager::GetProcessPluginDescriptionAtIndex (i); 3213 g_plugins.push_back (option_enum); 3214 } 3215 ++i; 3216 } 3217 option_enum.value = 0; 3218 option_enum.string_value = NULL; 3219 option_enum.usage = NULL; 3220 g_plugins.push_back (option_enum); 3221 3222 for (i=0; (name = SettingsController::instance_settings_table[i].var_name); ++i) 3223 { 3224 if (::strcmp (name, "plugin") == 0) 3225 { 3226 SettingsController::instance_settings_table[i].enum_values = &g_plugins[0]; 3227 break; 3228 } 3229 } 3230 UserSettingsControllerSP &usc = GetSettingsController(); 3231 usc.reset (new SettingsController); 3232 UserSettingsController::InitializeSettingsController (usc, 3233 SettingsController::global_settings_table, 3234 SettingsController::instance_settings_table); 3235 3236 // Now call SettingsInitialize() for each 'child' of Process settings 3237 Thread::SettingsInitialize (); 3238 } 3239 3240 void 3241 Process::SettingsTerminate () 3242 { 3243 // Must call SettingsTerminate() on each 'child' of Process settings before terminating Process settings. 3244 3245 Thread::SettingsTerminate (); 3246 3247 // Now terminate Process Settings. 3248 3249 UserSettingsControllerSP &usc = GetSettingsController(); 3250 UserSettingsController::FinalizeSettingsController (usc); 3251 usc.reset(); 3252 } 3253 3254 UserSettingsControllerSP & 3255 Process::GetSettingsController () 3256 { 3257 static UserSettingsControllerSP g_settings_controller; 3258 return g_settings_controller; 3259 } 3260 3261 void 3262 Process::UpdateInstanceName () 3263 { 3264 ModuleSP module_sp = GetTarget().GetExecutableModule(); 3265 if (module_sp) 3266 { 3267 StreamString sstr; 3268 sstr.Printf ("%s", module_sp->GetFileSpec().GetFilename().AsCString()); 3269 3270 GetSettingsController()->RenameInstanceSettings (GetInstanceName().AsCString(), 3271 sstr.GetData()); 3272 } 3273 } 3274 3275 ExecutionResults 3276 Process::RunThreadPlan (ExecutionContext &exe_ctx, 3277 lldb::ThreadPlanSP &thread_plan_sp, 3278 bool stop_others, 3279 bool try_all_threads, 3280 bool discard_on_error, 3281 uint32_t single_thread_timeout_usec, 3282 Stream &errors) 3283 { 3284 ExecutionResults return_value = eExecutionSetupError; 3285 3286 if (thread_plan_sp.get() == NULL) 3287 { 3288 errors.Printf("RunThreadPlan called with empty thread plan."); 3289 return eExecutionSetupError; 3290 } 3291 3292 // We rely on the thread plan we are running returning "PlanCompleted" if when it successfully completes. 3293 // For that to be true the plan can't be private - since private plans suppress themselves in the 3294 // GetCompletedPlan call. 3295 3296 bool orig_plan_private = thread_plan_sp->GetPrivate(); 3297 thread_plan_sp->SetPrivate(false); 3298 3299 if (m_private_state.GetValue() != eStateStopped) 3300 { 3301 errors.Printf ("RunThreadPlan called while the private state was not stopped."); 3302 return eExecutionSetupError; 3303 } 3304 3305 // Save this value for restoration of the execution context after we run 3306 const uint32_t thread_idx_id = exe_ctx.thread->GetIndexID(); 3307 3308 // N.B. Running the target may unset the currently selected thread and frame. We don't want to do that either, 3309 // so we should arrange to reset them as well. 3310 3311 lldb::ThreadSP selected_thread_sp = exe_ctx.process->GetThreadList().GetSelectedThread(); 3312 lldb::StackFrameSP selected_frame_sp; 3313 3314 uint32_t selected_tid; 3315 if (selected_thread_sp != NULL) 3316 { 3317 selected_tid = selected_thread_sp->GetIndexID(); 3318 selected_frame_sp = selected_thread_sp->GetSelectedFrame(); 3319 } 3320 else 3321 { 3322 selected_tid = LLDB_INVALID_THREAD_ID; 3323 } 3324 3325 exe_ctx.thread->QueueThreadPlan(thread_plan_sp, true); 3326 3327 Listener listener("lldb.process.listener.run-thread-plan"); 3328 3329 // This process event hijacker Hijacks the Public events and its destructor makes sure that the process events get 3330 // restored on exit to the function. 3331 3332 ProcessEventHijacker run_thread_plan_hijacker (*this, &listener); 3333 3334 lldb::LogSP log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_STEP | LIBLLDB_LOG_PROCESS)); 3335 if (log) 3336 { 3337 StreamString s; 3338 thread_plan_sp->GetDescription(&s, lldb::eDescriptionLevelVerbose); 3339 log->Printf ("Process::RunThreadPlan(): Resuming thread %u - 0x%4.4x to run thread plan \"%s\".", 3340 exe_ctx.thread->GetIndexID(), 3341 exe_ctx.thread->GetID(), 3342 s.GetData()); 3343 } 3344 3345 bool got_event; 3346 lldb::EventSP event_sp; 3347 lldb::StateType stop_state = lldb::eStateInvalid; 3348 3349 TimeValue* timeout_ptr = NULL; 3350 TimeValue real_timeout; 3351 3352 bool first_timeout = true; 3353 bool do_resume = true; 3354 3355 while (1) 3356 { 3357 // We usually want to resume the process if we get to the top of the loop. 3358 // The only exception is if we get two running events with no intervening 3359 // stop, which can happen, we will just wait for then next stop event. 3360 3361 if (do_resume) 3362 { 3363 // Do the initial resume and wait for the running event before going further. 3364 3365 Error resume_error = exe_ctx.process->Resume (); 3366 if (!resume_error.Success()) 3367 { 3368 errors.Printf("Error resuming inferior: \"%s\".\n", resume_error.AsCString()); 3369 return_value = eExecutionSetupError; 3370 break; 3371 } 3372 3373 real_timeout = TimeValue::Now(); 3374 real_timeout.OffsetWithMicroSeconds(500000); 3375 timeout_ptr = &real_timeout; 3376 3377 got_event = listener.WaitForEvent(NULL, event_sp); 3378 if (!got_event) 3379 { 3380 if (log) 3381 log->Printf("Didn't get any event after initial resume, exiting."); 3382 3383 errors.Printf("Didn't get any event after initial resume, exiting."); 3384 return_value = eExecutionSetupError; 3385 break; 3386 } 3387 3388 stop_state = Process::ProcessEventData::GetStateFromEvent(event_sp.get()); 3389 if (stop_state != eStateRunning) 3390 { 3391 if (log) 3392 log->Printf("Didn't get running event after initial resume, got %s instead.", StateAsCString(stop_state)); 3393 3394 errors.Printf("Didn't get running event after initial resume, got %s instead.", StateAsCString(stop_state)); 3395 return_value = eExecutionSetupError; 3396 break; 3397 } 3398 3399 if (log) 3400 log->Printf ("Resuming succeeded."); 3401 // We need to call the function synchronously, so spin waiting for it to return. 3402 // If we get interrupted while executing, we're going to lose our context, and 3403 // won't be able to gather the result at this point. 3404 // We set the timeout AFTER the resume, since the resume takes some time and we 3405 // don't want to charge that to the timeout. 3406 3407 if (single_thread_timeout_usec != 0) 3408 { 3409 real_timeout = TimeValue::Now(); 3410 if (first_timeout) 3411 real_timeout.OffsetWithMicroSeconds(single_thread_timeout_usec); 3412 else 3413 real_timeout.OffsetWithSeconds(10); 3414 3415 timeout_ptr = &real_timeout; 3416 } 3417 } 3418 else 3419 { 3420 if (log) 3421 log->Printf ("Handled an extra running event."); 3422 do_resume = true; 3423 } 3424 3425 // Now wait for the process to stop again: 3426 stop_state = lldb::eStateInvalid; 3427 event_sp.reset(); 3428 got_event = listener.WaitForEvent (timeout_ptr, event_sp); 3429 3430 if (got_event) 3431 { 3432 if (event_sp.get()) 3433 { 3434 bool keep_going = false; 3435 stop_state = Process::ProcessEventData::GetStateFromEvent(event_sp.get()); 3436 if (log) 3437 log->Printf("In while loop, got event: %s.", StateAsCString(stop_state)); 3438 3439 switch (stop_state) 3440 { 3441 case lldb::eStateStopped: 3442 { 3443 // Yay, we're done. Now make sure that our thread plan actually completed. 3444 ThreadSP thread_sp = exe_ctx.process->GetThreadList().FindThreadByIndexID (thread_idx_id); 3445 if (!thread_sp) 3446 { 3447 // Ooh, our thread has vanished. Unlikely that this was successful execution... 3448 if (log) 3449 log->Printf ("Execution completed but our thread (index-id=%u) has vanished.", thread_idx_id); 3450 return_value = eExecutionInterrupted; 3451 } 3452 else 3453 { 3454 StopInfoSP stop_info_sp = thread_sp->GetStopInfo (); 3455 StopReason stop_reason = stop_info_sp->GetStopReason(); 3456 if (stop_reason == eStopReasonPlanComplete) 3457 { 3458 if (log) 3459 log->Printf ("Execution completed successfully."); 3460 // Now mark this plan as private so it doesn't get reported as the stop reason 3461 // after this point. 3462 if (thread_plan_sp) 3463 thread_plan_sp->SetPrivate (orig_plan_private); 3464 return_value = eExecutionCompleted; 3465 } 3466 else 3467 { 3468 if (log) 3469 log->Printf ("Thread plan didn't successfully complete."); 3470 3471 return_value = eExecutionInterrupted; 3472 } 3473 } 3474 } 3475 break; 3476 case lldb::eStateCrashed: 3477 if (log) 3478 log->Printf ("Execution crashed."); 3479 return_value = eExecutionInterrupted; 3480 break; 3481 case lldb::eStateRunning: 3482 do_resume = false; 3483 keep_going = true; 3484 break; 3485 default: 3486 if (log) 3487 log->Printf("Execution stopped with unexpected state: %s.", StateAsCString(stop_state)); 3488 3489 errors.Printf ("Execution stopped with unexpected state."); 3490 return_value = eExecutionInterrupted; 3491 break; 3492 } 3493 if (keep_going) 3494 continue; 3495 else 3496 break; 3497 } 3498 else 3499 { 3500 if (log) 3501 log->Printf ("got_event was true, but the event pointer was null. How odd..."); 3502 return_value = eExecutionInterrupted; 3503 break; 3504 } 3505 } 3506 else 3507 { 3508 // If we didn't get an event that means we've timed out... 3509 // We will interrupt the process here. Depending on what we were asked to do we will 3510 // either exit, or try with all threads running for the same timeout. 3511 // Not really sure what to do if Halt fails here... 3512 3513 if (log) { 3514 if (try_all_threads) 3515 { 3516 if (first_timeout) 3517 log->Printf ("Process::RunThreadPlan(): Running function with timeout: %d timed out, " 3518 "trying with all threads enabled.", 3519 single_thread_timeout_usec); 3520 else 3521 log->Printf ("Process::RunThreadPlan(): Restarting function with all threads enabled " 3522 "and timeout: %d timed out.", 3523 single_thread_timeout_usec); 3524 } 3525 else 3526 log->Printf ("Process::RunThreadPlan(): Running function with timeout: %d timed out, " 3527 "halt and abandoning execution.", 3528 single_thread_timeout_usec); 3529 } 3530 3531 Error halt_error = exe_ctx.process->Halt(); 3532 if (halt_error.Success()) 3533 { 3534 if (log) 3535 log->Printf ("Process::RunThreadPlan(): Halt succeeded."); 3536 3537 // If halt succeeds, it always produces a stopped event. Wait for that: 3538 3539 real_timeout = TimeValue::Now(); 3540 real_timeout.OffsetWithMicroSeconds(500000); 3541 3542 got_event = listener.WaitForEvent(&real_timeout, event_sp); 3543 3544 if (got_event) 3545 { 3546 stop_state = Process::ProcessEventData::GetStateFromEvent(event_sp.get()); 3547 if (log) 3548 { 3549 log->Printf ("Process::RunThreadPlan(): Stopped with event: %s", StateAsCString(stop_state)); 3550 if (stop_state == lldb::eStateStopped 3551 && Process::ProcessEventData::GetInterruptedFromEvent(event_sp.get())) 3552 log->Printf (" Event was the Halt interruption event."); 3553 } 3554 3555 if (stop_state == lldb::eStateStopped) 3556 { 3557 // Between the time we initiated the Halt and the time we delivered it, the process could have 3558 // already finished its job. Check that here: 3559 3560 if (exe_ctx.thread->IsThreadPlanDone (thread_plan_sp.get())) 3561 { 3562 if (log) 3563 log->Printf ("Process::RunThreadPlan(): Even though we timed out, the call plan was done. " 3564 "Exiting wait loop."); 3565 return_value = eExecutionCompleted; 3566 break; 3567 } 3568 3569 if (!try_all_threads) 3570 { 3571 if (log) 3572 log->Printf ("try_all_threads was false, we stopped so now we're quitting."); 3573 return_value = eExecutionInterrupted; 3574 break; 3575 } 3576 3577 if (first_timeout) 3578 { 3579 // Set all the other threads to run, and return to the top of the loop, which will continue; 3580 first_timeout = false; 3581 thread_plan_sp->SetStopOthers (false); 3582 if (log) 3583 log->Printf ("Process::RunThreadPlan(): About to resume."); 3584 3585 continue; 3586 } 3587 else 3588 { 3589 // Running all threads failed, so return Interrupted. 3590 if (log) 3591 log->Printf("Process::RunThreadPlan(): running all threads timed out."); 3592 return_value = eExecutionInterrupted; 3593 break; 3594 } 3595 } 3596 } 3597 else 3598 { if (log) 3599 log->Printf("Process::RunThreadPlan(): halt said it succeeded, but I got no event. " 3600 "I'm getting out of here passing Interrupted."); 3601 return_value = eExecutionInterrupted; 3602 break; 3603 } 3604 } 3605 else 3606 { 3607 // This branch is to work around some problems with gdb-remote's Halt. It is a little racy, and can return 3608 // an error from halt, but if you wait a bit you'll get a stopped event anyway. 3609 if (log) 3610 log->Printf ("Process::RunThreadPlan(): halt failed: error = \"%s\", I'm just going to wait a little longer and see if I get a stopped event.", 3611 halt_error.AsCString()); 3612 real_timeout = TimeValue::Now(); 3613 real_timeout.OffsetWithMicroSeconds(500000); 3614 timeout_ptr = &real_timeout; 3615 got_event = listener.WaitForEvent(&real_timeout, event_sp); 3616 if (!got_event || event_sp.get() == NULL) 3617 { 3618 // This is not going anywhere, bag out. 3619 if (log) 3620 log->Printf ("Process::RunThreadPlan(): halt failed: and waiting for the stopped event failed."); 3621 return_value = eExecutionInterrupted; 3622 break; 3623 } 3624 else 3625 { 3626 stop_state = Process::ProcessEventData::GetStateFromEvent(event_sp.get()); 3627 if (log) 3628 log->Printf ("Process::RunThreadPlan(): halt failed: but then I got a stopped event. Whatever..."); 3629 if (stop_state == lldb::eStateStopped) 3630 { 3631 // Between the time we initiated the Halt and the time we delivered it, the process could have 3632 // already finished its job. Check that here: 3633 3634 if (exe_ctx.thread->IsThreadPlanDone (thread_plan_sp.get())) 3635 { 3636 if (log) 3637 log->Printf ("Process::RunThreadPlan(): Even though we timed out, the call plan was done. " 3638 "Exiting wait loop."); 3639 return_value = eExecutionCompleted; 3640 break; 3641 } 3642 3643 if (first_timeout) 3644 { 3645 // Set all the other threads to run, and return to the top of the loop, which will continue; 3646 first_timeout = false; 3647 thread_plan_sp->SetStopOthers (false); 3648 if (log) 3649 log->Printf ("Process::RunThreadPlan(): About to resume."); 3650 3651 continue; 3652 } 3653 else 3654 { 3655 // Running all threads failed, so return Interrupted. 3656 if (log) 3657 log->Printf("Process::RunThreadPlan(): running all threads timed out."); 3658 return_value = eExecutionInterrupted; 3659 break; 3660 } 3661 } 3662 else 3663 { 3664 log->Printf ("Process::RunThreadPlan(): halt failed, I waited and didn't get" 3665 " a stopped event, instead got %s.", StateAsCString(stop_state)); 3666 return_value = eExecutionInterrupted; 3667 break; 3668 } 3669 } 3670 } 3671 3672 } 3673 3674 } // END WAIT LOOP 3675 3676 // Now do some processing on the results of the run: 3677 if (return_value == eExecutionInterrupted) 3678 { 3679 if (log) 3680 { 3681 StreamString s; 3682 if (event_sp) 3683 event_sp->Dump (&s); 3684 else 3685 { 3686 log->Printf ("Process::RunThreadPlan(): Stop event that interrupted us is NULL."); 3687 } 3688 3689 StreamString ts; 3690 3691 const char *event_explanation; 3692 3693 do 3694 { 3695 const Process::ProcessEventData *event_data = Process::ProcessEventData::GetEventDataFromEvent (event_sp.get()); 3696 3697 if (!event_data) 3698 { 3699 event_explanation = "<no event data>"; 3700 break; 3701 } 3702 3703 Process *process = event_data->GetProcessSP().get(); 3704 3705 if (!process) 3706 { 3707 event_explanation = "<no process>"; 3708 break; 3709 } 3710 3711 ThreadList &thread_list = process->GetThreadList(); 3712 3713 uint32_t num_threads = thread_list.GetSize(); 3714 uint32_t thread_index; 3715 3716 ts.Printf("<%u threads> ", num_threads); 3717 3718 for (thread_index = 0; 3719 thread_index < num_threads; 3720 ++thread_index) 3721 { 3722 Thread *thread = thread_list.GetThreadAtIndex(thread_index).get(); 3723 3724 if (!thread) 3725 { 3726 ts.Printf("<?> "); 3727 continue; 3728 } 3729 3730 ts.Printf("<0x%4.4x ", thread->GetID()); 3731 RegisterContext *register_context = thread->GetRegisterContext().get(); 3732 3733 if (register_context) 3734 ts.Printf("[ip 0x%llx] ", register_context->GetPC()); 3735 else 3736 ts.Printf("[ip unknown] "); 3737 3738 lldb::StopInfoSP stop_info_sp = thread->GetStopInfo(); 3739 if (stop_info_sp) 3740 { 3741 const char *stop_desc = stop_info_sp->GetDescription(); 3742 if (stop_desc) 3743 ts.PutCString (stop_desc); 3744 } 3745 ts.Printf(">"); 3746 } 3747 3748 event_explanation = ts.GetData(); 3749 } while (0); 3750 3751 if (log) 3752 log->Printf("Process::RunThreadPlan(): execution interrupted: %s %s", s.GetData(), event_explanation); 3753 3754 if (discard_on_error && thread_plan_sp) 3755 { 3756 exe_ctx.thread->DiscardThreadPlansUpToPlan (thread_plan_sp); 3757 } 3758 } 3759 } 3760 else if (return_value == eExecutionSetupError) 3761 { 3762 if (log) 3763 log->Printf("Process::RunThreadPlan(): execution set up error."); 3764 3765 if (discard_on_error && thread_plan_sp) 3766 { 3767 exe_ctx.thread->DiscardThreadPlansUpToPlan (thread_plan_sp); 3768 } 3769 } 3770 else 3771 { 3772 if (exe_ctx.thread->IsThreadPlanDone (thread_plan_sp.get())) 3773 { 3774 if (log) 3775 log->Printf("Process::RunThreadPlan(): thread plan is done"); 3776 return_value = eExecutionCompleted; 3777 } 3778 else if (exe_ctx.thread->WasThreadPlanDiscarded (thread_plan_sp.get())) 3779 { 3780 if (log) 3781 log->Printf("Process::RunThreadPlan(): thread plan was discarded"); 3782 return_value = eExecutionDiscarded; 3783 } 3784 else 3785 { 3786 if (log) 3787 log->Printf("Process::RunThreadPlan(): thread plan stopped in mid course"); 3788 if (discard_on_error && thread_plan_sp) 3789 { 3790 if (log) 3791 log->Printf("Process::RunThreadPlan(): discarding thread plan 'cause discard_on_error is set."); 3792 exe_ctx.thread->DiscardThreadPlansUpToPlan (thread_plan_sp); 3793 } 3794 } 3795 } 3796 3797 // Thread we ran the function in may have gone away because we ran the target 3798 // Check that it's still there. 3799 exe_ctx.thread = exe_ctx.process->GetThreadList().FindThreadByIndexID(thread_idx_id, true).get(); 3800 if (exe_ctx.thread) 3801 exe_ctx.frame = exe_ctx.thread->GetStackFrameAtIndex(0).get(); 3802 3803 // Also restore the current process'es selected frame & thread, since this function calling may 3804 // be done behind the user's back. 3805 3806 if (selected_tid != LLDB_INVALID_THREAD_ID) 3807 { 3808 if (exe_ctx.process->GetThreadList().SetSelectedThreadByIndexID (selected_tid)) 3809 { 3810 // We were able to restore the selected thread, now restore the frame: 3811 exe_ctx.process->GetThreadList().GetSelectedThread()->SetSelectedFrame(selected_frame_sp.get()); 3812 } 3813 } 3814 3815 return return_value; 3816 } 3817 3818 const char * 3819 Process::ExecutionResultAsCString (ExecutionResults result) 3820 { 3821 const char *result_name; 3822 3823 switch (result) 3824 { 3825 case eExecutionCompleted: 3826 result_name = "eExecutionCompleted"; 3827 break; 3828 case eExecutionDiscarded: 3829 result_name = "eExecutionDiscarded"; 3830 break; 3831 case eExecutionInterrupted: 3832 result_name = "eExecutionInterrupted"; 3833 break; 3834 case eExecutionSetupError: 3835 result_name = "eExecutionSetupError"; 3836 break; 3837 case eExecutionTimedOut: 3838 result_name = "eExecutionTimedOut"; 3839 break; 3840 } 3841 return result_name; 3842 } 3843 3844 void 3845 Process::GetStatus (Stream &strm) 3846 { 3847 const StateType state = GetState(); 3848 if (StateIsStoppedState(state)) 3849 { 3850 if (state == eStateExited) 3851 { 3852 int exit_status = GetExitStatus(); 3853 const char *exit_description = GetExitDescription(); 3854 strm.Printf ("Process %d exited with status = %i (0x%8.8x) %s\n", 3855 GetID(), 3856 exit_status, 3857 exit_status, 3858 exit_description ? exit_description : ""); 3859 } 3860 else 3861 { 3862 if (state == eStateConnected) 3863 strm.Printf ("Connected to remote target.\n"); 3864 else 3865 strm.Printf ("Process %d %s\n", GetID(), StateAsCString (state)); 3866 } 3867 } 3868 else 3869 { 3870 strm.Printf ("Process %d is running.\n", GetID()); 3871 } 3872 } 3873 3874 size_t 3875 Process::GetThreadStatus (Stream &strm, 3876 bool only_threads_with_stop_reason, 3877 uint32_t start_frame, 3878 uint32_t num_frames, 3879 uint32_t num_frames_with_source) 3880 { 3881 size_t num_thread_infos_dumped = 0; 3882 3883 const size_t num_threads = GetThreadList().GetSize(); 3884 for (uint32_t i = 0; i < num_threads; i++) 3885 { 3886 Thread *thread = GetThreadList().GetThreadAtIndex(i).get(); 3887 if (thread) 3888 { 3889 if (only_threads_with_stop_reason) 3890 { 3891 if (thread->GetStopInfo().get() == NULL) 3892 continue; 3893 } 3894 thread->GetStatus (strm, 3895 start_frame, 3896 num_frames, 3897 num_frames_with_source); 3898 ++num_thread_infos_dumped; 3899 } 3900 } 3901 return num_thread_infos_dumped; 3902 } 3903 3904 //-------------------------------------------------------------- 3905 // class Process::SettingsController 3906 //-------------------------------------------------------------- 3907 3908 Process::SettingsController::SettingsController () : 3909 UserSettingsController ("process", Target::GetSettingsController()) 3910 { 3911 m_default_settings.reset (new ProcessInstanceSettings (*this, 3912 false, 3913 InstanceSettings::GetDefaultName().AsCString())); 3914 } 3915 3916 Process::SettingsController::~SettingsController () 3917 { 3918 } 3919 3920 lldb::InstanceSettingsSP 3921 Process::SettingsController::CreateInstanceSettings (const char *instance_name) 3922 { 3923 ProcessInstanceSettings *new_settings = new ProcessInstanceSettings (*GetSettingsController(), 3924 false, 3925 instance_name); 3926 lldb::InstanceSettingsSP new_settings_sp (new_settings); 3927 return new_settings_sp; 3928 } 3929 3930 //-------------------------------------------------------------- 3931 // class ProcessInstanceSettings 3932 //-------------------------------------------------------------- 3933 3934 ProcessInstanceSettings::ProcessInstanceSettings 3935 ( 3936 UserSettingsController &owner, 3937 bool live_instance, 3938 const char *name 3939 ) : 3940 InstanceSettings (owner, name ? name : InstanceSettings::InvalidName().AsCString(), live_instance), 3941 m_run_args (), 3942 m_env_vars (), 3943 m_input_path (), 3944 m_output_path (), 3945 m_error_path (), 3946 m_disable_aslr (true), 3947 m_disable_stdio (false), 3948 m_inherit_host_env (true), 3949 m_got_host_env (false) 3950 { 3951 // CopyInstanceSettings is a pure virtual function in InstanceSettings; it therefore cannot be called 3952 // until the vtables for ProcessInstanceSettings are properly set up, i.e. AFTER all the initializers. 3953 // For this reason it has to be called here, rather than in the initializer or in the parent constructor. 3954 // This is true for CreateInstanceName() too. 3955 3956 if (GetInstanceName () == InstanceSettings::InvalidName()) 3957 { 3958 ChangeInstanceName (std::string (CreateInstanceName().AsCString())); 3959 m_owner.RegisterInstanceSettings (this); 3960 } 3961 3962 if (live_instance) 3963 { 3964 const lldb::InstanceSettingsSP &pending_settings = m_owner.FindPendingSettings (m_instance_name); 3965 CopyInstanceSettings (pending_settings,false); 3966 //m_owner.RemovePendingSettings (m_instance_name); 3967 } 3968 } 3969 3970 ProcessInstanceSettings::ProcessInstanceSettings (const ProcessInstanceSettings &rhs) : 3971 InstanceSettings (*Process::GetSettingsController(), CreateInstanceName().AsCString()), 3972 m_run_args (rhs.m_run_args), 3973 m_env_vars (rhs.m_env_vars), 3974 m_input_path (rhs.m_input_path), 3975 m_output_path (rhs.m_output_path), 3976 m_error_path (rhs.m_error_path), 3977 m_disable_aslr (rhs.m_disable_aslr), 3978 m_disable_stdio (rhs.m_disable_stdio) 3979 { 3980 if (m_instance_name != InstanceSettings::GetDefaultName()) 3981 { 3982 const lldb::InstanceSettingsSP &pending_settings = m_owner.FindPendingSettings (m_instance_name); 3983 CopyInstanceSettings (pending_settings,false); 3984 m_owner.RemovePendingSettings (m_instance_name); 3985 } 3986 } 3987 3988 ProcessInstanceSettings::~ProcessInstanceSettings () 3989 { 3990 } 3991 3992 ProcessInstanceSettings& 3993 ProcessInstanceSettings::operator= (const ProcessInstanceSettings &rhs) 3994 { 3995 if (this != &rhs) 3996 { 3997 m_run_args = rhs.m_run_args; 3998 m_env_vars = rhs.m_env_vars; 3999 m_input_path = rhs.m_input_path; 4000 m_output_path = rhs.m_output_path; 4001 m_error_path = rhs.m_error_path; 4002 m_disable_aslr = rhs.m_disable_aslr; 4003 m_disable_stdio = rhs.m_disable_stdio; 4004 m_inherit_host_env = rhs.m_inherit_host_env; 4005 } 4006 4007 return *this; 4008 } 4009 4010 4011 void 4012 ProcessInstanceSettings::UpdateInstanceSettingsVariable (const ConstString &var_name, 4013 const char *index_value, 4014 const char *value, 4015 const ConstString &instance_name, 4016 const SettingEntry &entry, 4017 VarSetOperationType op, 4018 Error &err, 4019 bool pending) 4020 { 4021 if (var_name == RunArgsVarName()) 4022 UserSettingsController::UpdateStringArrayVariable (op, index_value, m_run_args, value, err); 4023 else if (var_name == EnvVarsVarName()) 4024 { 4025 // This is nice for local debugging, but it is isn't correct for 4026 // remote debugging. We need to stop process.env-vars from being 4027 // populated with the host environment and add this as a launch option 4028 // and get the correct environment from the Target's platform. 4029 // GetHostEnvironmentIfNeeded (); 4030 UserSettingsController::UpdateDictionaryVariable (op, index_value, m_env_vars, value, err); 4031 } 4032 else if (var_name == InputPathVarName()) 4033 UserSettingsController::UpdateStringVariable (op, m_input_path, value, err); 4034 else if (var_name == OutputPathVarName()) 4035 UserSettingsController::UpdateStringVariable (op, m_output_path, value, err); 4036 else if (var_name == ErrorPathVarName()) 4037 UserSettingsController::UpdateStringVariable (op, m_error_path, value, err); 4038 else if (var_name == DisableASLRVarName()) 4039 UserSettingsController::UpdateBooleanVariable (op, m_disable_aslr, value, true, err); 4040 else if (var_name == DisableSTDIOVarName ()) 4041 UserSettingsController::UpdateBooleanVariable (op, m_disable_stdio, value, false, err); 4042 } 4043 4044 void 4045 ProcessInstanceSettings::CopyInstanceSettings (const lldb::InstanceSettingsSP &new_settings, 4046 bool pending) 4047 { 4048 if (new_settings.get() == NULL) 4049 return; 4050 4051 ProcessInstanceSettings *new_process_settings = (ProcessInstanceSettings *) new_settings.get(); 4052 4053 m_run_args = new_process_settings->m_run_args; 4054 m_env_vars = new_process_settings->m_env_vars; 4055 m_input_path = new_process_settings->m_input_path; 4056 m_output_path = new_process_settings->m_output_path; 4057 m_error_path = new_process_settings->m_error_path; 4058 m_disable_aslr = new_process_settings->m_disable_aslr; 4059 m_disable_stdio = new_process_settings->m_disable_stdio; 4060 } 4061 4062 bool 4063 ProcessInstanceSettings::GetInstanceSettingsValue (const SettingEntry &entry, 4064 const ConstString &var_name, 4065 StringList &value, 4066 Error *err) 4067 { 4068 if (var_name == RunArgsVarName()) 4069 { 4070 if (m_run_args.GetArgumentCount() > 0) 4071 { 4072 for (int i = 0; i < m_run_args.GetArgumentCount(); ++i) 4073 value.AppendString (m_run_args.GetArgumentAtIndex (i)); 4074 } 4075 } 4076 else if (var_name == EnvVarsVarName()) 4077 { 4078 GetHostEnvironmentIfNeeded (); 4079 4080 if (m_env_vars.size() > 0) 4081 { 4082 std::map<std::string, std::string>::iterator pos; 4083 for (pos = m_env_vars.begin(); pos != m_env_vars.end(); ++pos) 4084 { 4085 StreamString value_str; 4086 value_str.Printf ("%s=%s", pos->first.c_str(), pos->second.c_str()); 4087 value.AppendString (value_str.GetData()); 4088 } 4089 } 4090 } 4091 else if (var_name == InputPathVarName()) 4092 { 4093 value.AppendString (m_input_path.c_str()); 4094 } 4095 else if (var_name == OutputPathVarName()) 4096 { 4097 value.AppendString (m_output_path.c_str()); 4098 } 4099 else if (var_name == ErrorPathVarName()) 4100 { 4101 value.AppendString (m_error_path.c_str()); 4102 } 4103 else if (var_name == InheritHostEnvVarName()) 4104 { 4105 if (m_inherit_host_env) 4106 value.AppendString ("true"); 4107 else 4108 value.AppendString ("false"); 4109 } 4110 else if (var_name == DisableASLRVarName()) 4111 { 4112 if (m_disable_aslr) 4113 value.AppendString ("true"); 4114 else 4115 value.AppendString ("false"); 4116 } 4117 else if (var_name == DisableSTDIOVarName()) 4118 { 4119 if (m_disable_stdio) 4120 value.AppendString ("true"); 4121 else 4122 value.AppendString ("false"); 4123 } 4124 else 4125 { 4126 if (err) 4127 err->SetErrorStringWithFormat ("unrecognized variable name '%s'", var_name.AsCString()); 4128 return false; 4129 } 4130 return true; 4131 } 4132 4133 const ConstString 4134 ProcessInstanceSettings::CreateInstanceName () 4135 { 4136 static int instance_count = 1; 4137 StreamString sstr; 4138 4139 sstr.Printf ("process_%d", instance_count); 4140 ++instance_count; 4141 4142 const ConstString ret_val (sstr.GetData()); 4143 return ret_val; 4144 } 4145 4146 const ConstString & 4147 ProcessInstanceSettings::RunArgsVarName () 4148 { 4149 static ConstString run_args_var_name ("run-args"); 4150 4151 return run_args_var_name; 4152 } 4153 4154 const ConstString & 4155 ProcessInstanceSettings::EnvVarsVarName () 4156 { 4157 static ConstString env_vars_var_name ("env-vars"); 4158 4159 return env_vars_var_name; 4160 } 4161 4162 const ConstString & 4163 ProcessInstanceSettings::InheritHostEnvVarName () 4164 { 4165 static ConstString g_name ("inherit-env"); 4166 4167 return g_name; 4168 } 4169 4170 const ConstString & 4171 ProcessInstanceSettings::InputPathVarName () 4172 { 4173 static ConstString input_path_var_name ("input-path"); 4174 4175 return input_path_var_name; 4176 } 4177 4178 const ConstString & 4179 ProcessInstanceSettings::OutputPathVarName () 4180 { 4181 static ConstString output_path_var_name ("output-path"); 4182 4183 return output_path_var_name; 4184 } 4185 4186 const ConstString & 4187 ProcessInstanceSettings::ErrorPathVarName () 4188 { 4189 static ConstString error_path_var_name ("error-path"); 4190 4191 return error_path_var_name; 4192 } 4193 4194 const ConstString & 4195 ProcessInstanceSettings::DisableASLRVarName () 4196 { 4197 static ConstString disable_aslr_var_name ("disable-aslr"); 4198 4199 return disable_aslr_var_name; 4200 } 4201 4202 const ConstString & 4203 ProcessInstanceSettings::DisableSTDIOVarName () 4204 { 4205 static ConstString disable_stdio_var_name ("disable-stdio"); 4206 4207 return disable_stdio_var_name; 4208 } 4209 4210 //-------------------------------------------------- 4211 // SettingsController Variable Tables 4212 //-------------------------------------------------- 4213 4214 SettingEntry 4215 Process::SettingsController::global_settings_table[] = 4216 { 4217 //{ "var-name", var-type , "default", enum-table, init'd, hidden, "help-text"}, 4218 { NULL, eSetVarTypeNone, NULL, NULL, 0, 0, NULL } 4219 }; 4220 4221 4222 SettingEntry 4223 Process::SettingsController::instance_settings_table[] = 4224 { 4225 //{ "var-name", var-type, "default", enum-table, init'd, hidden, "help-text"}, 4226 { "run-args", eSetVarTypeArray, NULL, NULL, false, false, "A list containing all the arguments to be passed to the executable when it is run." }, 4227 { "env-vars", eSetVarTypeDictionary, NULL, NULL, false, false, "A list of all the environment variables to be passed to the executable's environment, and their values." }, 4228 { "inherit-env", eSetVarTypeBoolean, "true", NULL, false, false, "Inherit the environment from the process that is running LLDB." }, 4229 { "input-path", eSetVarTypeString, NULL, NULL, false, false, "The file/path to be used by the executable program for reading its input." }, 4230 { "output-path", eSetVarTypeString, NULL, NULL, false, false, "The file/path to be used by the executable program for writing its output." }, 4231 { "error-path", eSetVarTypeString, NULL, NULL, false, false, "The file/path to be used by the executable program for writings its error messages." }, 4232 { "plugin", eSetVarTypeEnum, NULL, NULL, false, false, "The plugin to be used to run the process." }, 4233 { "disable-aslr", eSetVarTypeBoolean, "true", NULL, false, false, "Disable Address Space Layout Randomization (ASLR)" }, 4234 { "disable-stdio", eSetVarTypeBoolean, "false", NULL, false, false, "Disable stdin/stdout for process (e.g. for a GUI application)" }, 4235 { NULL, eSetVarTypeNone, NULL, NULL, false, false, NULL } 4236 }; 4237 4238 4239 4240