1 //===-- Thread.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/lldb-private-log.h" 11 #include "lldb/Breakpoint/BreakpointLocation.h" 12 #include "lldb/Core/Debugger.h" 13 #include "lldb/Core/Log.h" 14 #include "lldb/Core/Stream.h" 15 #include "lldb/Core/StreamString.h" 16 #include "lldb/Core/RegularExpression.h" 17 #include "lldb/Host/Host.h" 18 #include "lldb/Target/DynamicLoader.h" 19 #include "lldb/Target/ExecutionContext.h" 20 #include "lldb/Target/ObjCLanguageRuntime.h" 21 #include "lldb/Target/Process.h" 22 #include "lldb/Target/RegisterContext.h" 23 #include "lldb/Target/StopInfo.h" 24 #include "lldb/Target/Target.h" 25 #include "lldb/Target/Thread.h" 26 #include "lldb/Target/ThreadPlan.h" 27 #include "lldb/Target/ThreadPlanCallFunction.h" 28 #include "lldb/Target/ThreadPlanBase.h" 29 #include "lldb/Target/ThreadPlanStepInstruction.h" 30 #include "lldb/Target/ThreadPlanStepOut.h" 31 #include "lldb/Target/ThreadPlanStepOverBreakpoint.h" 32 #include "lldb/Target/ThreadPlanStepThrough.h" 33 #include "lldb/Target/ThreadPlanStepInRange.h" 34 #include "lldb/Target/ThreadPlanStepOverRange.h" 35 #include "lldb/Target/ThreadPlanRunToAddress.h" 36 #include "lldb/Target/ThreadPlanStepUntil.h" 37 #include "lldb/Target/ThreadSpec.h" 38 #include "lldb/Target/Unwind.h" 39 #include "Plugins/Process/Utility/UnwindLLDB.h" 40 #include "UnwindMacOSXFrameBackchain.h" 41 42 43 using namespace lldb; 44 using namespace lldb_private; 45 46 Thread::Thread (Process &process, lldb::tid_t tid) : 47 UserID (tid), 48 ThreadInstanceSettings (*GetSettingsController()), 49 m_process (process), 50 m_actual_stop_info_sp (), 51 m_index_id (process.GetNextThreadIndexID ()), 52 m_reg_context_sp (), 53 m_state (eStateUnloaded), 54 m_state_mutex (Mutex::eMutexTypeRecursive), 55 m_plan_stack (), 56 m_completed_plan_stack(), 57 m_curr_frames_sp (), 58 m_prev_frames_sp (), 59 m_resume_signal (LLDB_INVALID_SIGNAL_NUMBER), 60 m_resume_state (eStateRunning), 61 m_unwinder_ap (), 62 m_destroy_called (false), 63 m_thread_stop_reason_stop_id (0) 64 65 { 66 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT)); 67 if (log) 68 log->Printf ("%p Thread::Thread(tid = 0x%4.4llx)", this, GetID()); 69 70 QueueFundamentalPlan(true); 71 UpdateInstanceName(); 72 } 73 74 75 Thread::~Thread() 76 { 77 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT)); 78 if (log) 79 log->Printf ("%p Thread::~Thread(tid = 0x%4.4llx)", this, GetID()); 80 /// If you hit this assert, it means your derived class forgot to call DoDestroy in its destructor. 81 assert (m_destroy_called); 82 } 83 84 void 85 Thread::DestroyThread () 86 { 87 m_plan_stack.clear(); 88 m_discarded_plan_stack.clear(); 89 m_completed_plan_stack.clear(); 90 m_destroy_called = true; 91 } 92 93 lldb::StopInfoSP 94 Thread::GetStopInfo () 95 { 96 ThreadPlanSP plan_sp (GetCompletedPlan()); 97 if (plan_sp) 98 return StopInfo::CreateStopReasonWithPlan (plan_sp); 99 else 100 { 101 if (m_actual_stop_info_sp 102 && m_actual_stop_info_sp->IsValid() 103 && m_thread_stop_reason_stop_id == m_process.GetStopID()) 104 return m_actual_stop_info_sp; 105 else 106 return GetPrivateStopReason (); 107 } 108 } 109 110 void 111 Thread::SetStopInfo (const lldb::StopInfoSP &stop_info_sp) 112 { 113 m_actual_stop_info_sp = stop_info_sp; 114 if (m_actual_stop_info_sp) 115 m_actual_stop_info_sp->MakeStopInfoValid(); 116 m_thread_stop_reason_stop_id = GetProcess().GetStopID(); 117 } 118 119 void 120 Thread::SetStopInfoToNothing() 121 { 122 // Note, we can't just NULL out the private reason, or the native thread implementation will try to 123 // go calculate it again. For now, just set it to a Unix Signal with an invalid signal number. 124 SetStopInfo (StopInfo::CreateStopReasonWithSignal (*this, LLDB_INVALID_SIGNAL_NUMBER)); 125 } 126 127 bool 128 Thread::ThreadStoppedForAReason (void) 129 { 130 return GetPrivateStopReason () != NULL; 131 } 132 133 bool 134 Thread::CheckpointThreadState (ThreadStateCheckpoint &saved_state) 135 { 136 if (!SaveFrameZeroState(saved_state.register_backup)) 137 return false; 138 139 saved_state.stop_info_sp = GetStopInfo(); 140 saved_state.orig_stop_id = GetProcess().GetStopID(); 141 142 return true; 143 } 144 145 bool 146 Thread::RestoreThreadStateFromCheckpoint (ThreadStateCheckpoint &saved_state) 147 { 148 RestoreSaveFrameZero(saved_state.register_backup); 149 if (saved_state.stop_info_sp) 150 saved_state.stop_info_sp->MakeStopInfoValid(); 151 SetStopInfo(saved_state.stop_info_sp); 152 return true; 153 } 154 155 StateType 156 Thread::GetState() const 157 { 158 // If any other threads access this we will need a mutex for it 159 Mutex::Locker locker(m_state_mutex); 160 return m_state; 161 } 162 163 void 164 Thread::SetState(StateType state) 165 { 166 Mutex::Locker locker(m_state_mutex); 167 m_state = state; 168 } 169 170 void 171 Thread::WillStop() 172 { 173 ThreadPlan *current_plan = GetCurrentPlan(); 174 175 // FIXME: I may decide to disallow threads with no plans. In which 176 // case this should go to an assert. 177 178 if (!current_plan) 179 return; 180 181 current_plan->WillStop(); 182 } 183 184 void 185 Thread::SetupForResume () 186 { 187 if (GetResumeState() != eStateSuspended) 188 { 189 190 // If we're at a breakpoint push the step-over breakpoint plan. Do this before 191 // telling the current plan it will resume, since we might change what the current 192 // plan is. 193 194 lldb::addr_t pc = GetRegisterContext()->GetPC(); 195 BreakpointSiteSP bp_site_sp = GetProcess().GetBreakpointSiteList().FindByAddress(pc); 196 if (bp_site_sp && bp_site_sp->IsEnabled()) 197 { 198 // Note, don't assume there's a ThreadPlanStepOverBreakpoint, the target may not require anything 199 // special to step over a breakpoint. 200 201 ThreadPlan *cur_plan = GetCurrentPlan(); 202 203 if (cur_plan->GetKind() != ThreadPlan::eKindStepOverBreakpoint) 204 { 205 ThreadPlanStepOverBreakpoint *step_bp_plan = new ThreadPlanStepOverBreakpoint (*this); 206 if (step_bp_plan) 207 { 208 ThreadPlanSP step_bp_plan_sp; 209 step_bp_plan->SetPrivate (true); 210 211 if (GetCurrentPlan()->RunState() != eStateStepping) 212 { 213 step_bp_plan->SetAutoContinue(true); 214 } 215 step_bp_plan_sp.reset (step_bp_plan); 216 QueueThreadPlan (step_bp_plan_sp, false); 217 } 218 } 219 } 220 } 221 } 222 223 bool 224 Thread::WillResume (StateType resume_state) 225 { 226 // At this point clear the completed plan stack. 227 m_completed_plan_stack.clear(); 228 m_discarded_plan_stack.clear(); 229 230 StopInfo *stop_info = GetPrivateStopReason().get(); 231 if (stop_info) 232 stop_info->WillResume (resume_state); 233 234 // Tell all the plans that we are about to resume in case they need to clear any state. 235 // We distinguish between the plan on the top of the stack and the lower 236 // plans in case a plan needs to do any special business before it runs. 237 238 ThreadPlan *plan_ptr = GetCurrentPlan(); 239 plan_ptr->WillResume(resume_state, true); 240 241 while ((plan_ptr = GetPreviousPlan(plan_ptr)) != NULL) 242 { 243 plan_ptr->WillResume (resume_state, false); 244 } 245 246 m_actual_stop_info_sp.reset(); 247 return true; 248 } 249 250 void 251 Thread::DidResume () 252 { 253 SetResumeSignal (LLDB_INVALID_SIGNAL_NUMBER); 254 } 255 256 bool 257 Thread::ShouldStop (Event* event_ptr) 258 { 259 ThreadPlan *current_plan = GetCurrentPlan(); 260 bool should_stop = true; 261 262 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP)); 263 if (log) 264 { 265 log->Printf ("^^^^^^^^ Thread::ShouldStop Begin ^^^^^^^^"); 266 StreamString s; 267 s.IndentMore(); 268 DumpThreadPlans(&s); 269 log->Printf ("Plan stack initial state:\n%s", s.GetData()); 270 } 271 272 // The top most plan always gets to do the trace log... 273 current_plan->DoTraceLog (); 274 275 if (current_plan->PlanExplainsStop()) 276 { 277 bool over_ride_stop = current_plan->ShouldAutoContinue(event_ptr); 278 279 if (log) 280 log->Printf("Plan %s explains stop, auto-continue %i.", current_plan->GetName(), over_ride_stop); 281 282 // We're starting from the base plan, so just let it decide; 283 if (PlanIsBasePlan(current_plan)) 284 { 285 should_stop = current_plan->ShouldStop (event_ptr); 286 if (log) 287 log->Printf("Base plan says should stop: %i.", should_stop); 288 } 289 else 290 { 291 // Otherwise, don't let the base plan override what the other plans say to do, since 292 // presumably if there were other plans they would know what to do... 293 while (1) 294 { 295 if (PlanIsBasePlan(current_plan)) 296 break; 297 298 should_stop = current_plan->ShouldStop(event_ptr); 299 if (log) 300 log->Printf("Plan %s should stop: %d.", current_plan->GetName(), should_stop); 301 if (current_plan->MischiefManaged()) 302 { 303 if (should_stop) 304 current_plan->WillStop(); 305 306 // If a Master Plan wants to stop, and wants to stick on the stack, we let it. 307 // Otherwise, see if the plan's parent wants to stop. 308 309 if (should_stop && current_plan->IsMasterPlan() && !current_plan->OkayToDiscard()) 310 { 311 PopPlan(); 312 break; 313 } 314 else 315 { 316 317 PopPlan(); 318 319 current_plan = GetCurrentPlan(); 320 if (current_plan == NULL) 321 { 322 break; 323 } 324 } 325 326 } 327 else 328 { 329 break; 330 } 331 } 332 } 333 if (over_ride_stop) 334 should_stop = false; 335 } 336 else if (current_plan->TracerExplainsStop()) 337 { 338 should_stop = false; 339 } 340 else 341 { 342 // If the current plan doesn't explain the stop, then, find one that 343 // does and let it handle the situation. 344 ThreadPlan *plan_ptr = current_plan; 345 while ((plan_ptr = GetPreviousPlan(plan_ptr)) != NULL) 346 { 347 if (plan_ptr->PlanExplainsStop()) 348 { 349 should_stop = plan_ptr->ShouldStop (event_ptr); 350 break; 351 } 352 353 } 354 } 355 356 if (log) 357 { 358 StreamString s; 359 s.IndentMore(); 360 DumpThreadPlans(&s); 361 log->Printf ("Plan stack final state:\n%s", s.GetData()); 362 log->Printf ("vvvvvvvv Thread::ShouldStop End (returning %i) vvvvvvvv", should_stop); 363 } 364 return should_stop; 365 } 366 367 Vote 368 Thread::ShouldReportStop (Event* event_ptr) 369 { 370 StateType thread_state = GetResumeState (); 371 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP)); 372 373 if (thread_state == eStateSuspended || thread_state == eStateInvalid) 374 { 375 if (log) 376 log->Printf ("Thread::ShouldReportStop() tid = 0x%4.4llx: returning vote %i (state was suspended or invalid)\n", GetID(), eVoteNoOpinion); 377 return eVoteNoOpinion; 378 } 379 380 if (m_completed_plan_stack.size() > 0) 381 { 382 // Don't use GetCompletedPlan here, since that suppresses private plans. 383 if (log) 384 log->Printf ("Thread::ShouldReportStop() tid = 0x%4.4llx: returning vote for complete stack's back plan\n", GetID()); 385 return m_completed_plan_stack.back()->ShouldReportStop (event_ptr); 386 } 387 else 388 { 389 if (log) 390 log->Printf ("Thread::ShouldReportStop() tid = 0x%4.4llx: returning vote for current plan\n", GetID()); 391 return GetCurrentPlan()->ShouldReportStop (event_ptr); 392 } 393 } 394 395 Vote 396 Thread::ShouldReportRun (Event* event_ptr) 397 { 398 StateType thread_state = GetResumeState (); 399 400 if (thread_state == eStateSuspended 401 || thread_state == eStateInvalid) 402 { 403 return eVoteNoOpinion; 404 } 405 406 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP)); 407 if (m_completed_plan_stack.size() > 0) 408 { 409 // Don't use GetCompletedPlan here, since that suppresses private plans. 410 if (log) 411 log->Printf ("Current Plan for thread %d (0x%4.4llx): %s being asked whether we should report run.", 412 GetIndexID(), 413 GetID(), 414 m_completed_plan_stack.back()->GetName()); 415 416 return m_completed_plan_stack.back()->ShouldReportRun (event_ptr); 417 } 418 else 419 { 420 if (log) 421 log->Printf ("Current Plan for thread %d (0x%4.4llx): %s being asked whether we should report run.", 422 GetIndexID(), 423 GetID(), 424 GetCurrentPlan()->GetName()); 425 426 return GetCurrentPlan()->ShouldReportRun (event_ptr); 427 } 428 } 429 430 bool 431 Thread::MatchesSpec (const ThreadSpec *spec) 432 { 433 if (spec == NULL) 434 return true; 435 436 return spec->ThreadPassesBasicTests(this); 437 } 438 439 void 440 Thread::PushPlan (ThreadPlanSP &thread_plan_sp) 441 { 442 if (thread_plan_sp) 443 { 444 // If the thread plan doesn't already have a tracer, give it its parent's tracer: 445 if (!thread_plan_sp->GetThreadPlanTracer()) 446 thread_plan_sp->SetThreadPlanTracer(m_plan_stack.back()->GetThreadPlanTracer()); 447 m_plan_stack.push_back (thread_plan_sp); 448 449 thread_plan_sp->DidPush(); 450 451 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP)); 452 if (log) 453 { 454 StreamString s; 455 thread_plan_sp->GetDescription (&s, lldb::eDescriptionLevelFull); 456 log->Printf("Pushing plan: \"%s\", tid = 0x%4.4llx.", 457 s.GetData(), 458 thread_plan_sp->GetThread().GetID()); 459 } 460 } 461 } 462 463 void 464 Thread::PopPlan () 465 { 466 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP)); 467 468 if (m_plan_stack.empty()) 469 return; 470 else 471 { 472 ThreadPlanSP &plan = m_plan_stack.back(); 473 if (log) 474 { 475 log->Printf("Popping plan: \"%s\", tid = 0x%4.4llx.", plan->GetName(), plan->GetThread().GetID()); 476 } 477 m_completed_plan_stack.push_back (plan); 478 plan->WillPop(); 479 m_plan_stack.pop_back(); 480 } 481 } 482 483 void 484 Thread::DiscardPlan () 485 { 486 if (m_plan_stack.size() > 1) 487 { 488 ThreadPlanSP &plan = m_plan_stack.back(); 489 m_discarded_plan_stack.push_back (plan); 490 plan->WillPop(); 491 m_plan_stack.pop_back(); 492 } 493 } 494 495 ThreadPlan * 496 Thread::GetCurrentPlan () 497 { 498 if (m_plan_stack.empty()) 499 return NULL; 500 else 501 return m_plan_stack.back().get(); 502 } 503 504 ThreadPlanSP 505 Thread::GetCompletedPlan () 506 { 507 ThreadPlanSP empty_plan_sp; 508 if (!m_completed_plan_stack.empty()) 509 { 510 for (int i = m_completed_plan_stack.size() - 1; i >= 0; i--) 511 { 512 ThreadPlanSP completed_plan_sp; 513 completed_plan_sp = m_completed_plan_stack[i]; 514 if (!completed_plan_sp->GetPrivate ()) 515 return completed_plan_sp; 516 } 517 } 518 return empty_plan_sp; 519 } 520 521 bool 522 Thread::IsThreadPlanDone (ThreadPlan *plan) 523 { 524 if (!m_completed_plan_stack.empty()) 525 { 526 for (int i = m_completed_plan_stack.size() - 1; i >= 0; i--) 527 { 528 if (m_completed_plan_stack[i].get() == plan) 529 return true; 530 } 531 } 532 return false; 533 } 534 535 bool 536 Thread::WasThreadPlanDiscarded (ThreadPlan *plan) 537 { 538 if (!m_discarded_plan_stack.empty()) 539 { 540 for (int i = m_discarded_plan_stack.size() - 1; i >= 0; i--) 541 { 542 if (m_discarded_plan_stack[i].get() == plan) 543 return true; 544 } 545 } 546 return false; 547 } 548 549 ThreadPlan * 550 Thread::GetPreviousPlan (ThreadPlan *current_plan) 551 { 552 if (current_plan == NULL) 553 return NULL; 554 555 int stack_size = m_completed_plan_stack.size(); 556 for (int i = stack_size - 1; i > 0; i--) 557 { 558 if (current_plan == m_completed_plan_stack[i].get()) 559 return m_completed_plan_stack[i-1].get(); 560 } 561 562 if (stack_size > 0 && m_completed_plan_stack[0].get() == current_plan) 563 { 564 if (m_plan_stack.size() > 0) 565 return m_plan_stack.back().get(); 566 else 567 return NULL; 568 } 569 570 stack_size = m_plan_stack.size(); 571 for (int i = stack_size - 1; i > 0; i--) 572 { 573 if (current_plan == m_plan_stack[i].get()) 574 return m_plan_stack[i-1].get(); 575 } 576 return NULL; 577 } 578 579 void 580 Thread::QueueThreadPlan (ThreadPlanSP &thread_plan_sp, bool abort_other_plans) 581 { 582 if (abort_other_plans) 583 DiscardThreadPlans(true); 584 585 PushPlan (thread_plan_sp); 586 } 587 588 589 void 590 Thread::EnableTracer (bool value, bool single_stepping) 591 { 592 int stack_size = m_plan_stack.size(); 593 for (int i = 0; i < stack_size; i++) 594 { 595 if (m_plan_stack[i]->GetThreadPlanTracer()) 596 { 597 m_plan_stack[i]->GetThreadPlanTracer()->EnableTracing(value); 598 m_plan_stack[i]->GetThreadPlanTracer()->EnableSingleStep(single_stepping); 599 } 600 } 601 } 602 603 void 604 Thread::SetTracer (lldb::ThreadPlanTracerSP &tracer_sp) 605 { 606 int stack_size = m_plan_stack.size(); 607 for (int i = 0; i < stack_size; i++) 608 m_plan_stack[i]->SetThreadPlanTracer(tracer_sp); 609 } 610 611 void 612 Thread::DiscardThreadPlansUpToPlan (lldb::ThreadPlanSP &up_to_plan_sp) 613 { 614 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP)); 615 if (log) 616 { 617 log->Printf("Discarding thread plans for thread tid = 0x%4.4llx, up to %p", GetID(), up_to_plan_sp.get()); 618 } 619 620 int stack_size = m_plan_stack.size(); 621 622 // If the input plan is NULL, discard all plans. Otherwise make sure this plan is in the 623 // stack, and if so discard up to and including it. 624 625 if (up_to_plan_sp.get() == NULL) 626 { 627 for (int i = stack_size - 1; i > 0; i--) 628 DiscardPlan(); 629 } 630 else 631 { 632 bool found_it = false; 633 for (int i = stack_size - 1; i > 0; i--) 634 { 635 if (m_plan_stack[i] == up_to_plan_sp) 636 found_it = true; 637 } 638 if (found_it) 639 { 640 bool last_one = false; 641 for (int i = stack_size - 1; i > 0 && !last_one ; i--) 642 { 643 if (GetCurrentPlan() == up_to_plan_sp.get()) 644 last_one = true; 645 DiscardPlan(); 646 } 647 } 648 } 649 return; 650 } 651 652 void 653 Thread::DiscardThreadPlans(bool force) 654 { 655 LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP)); 656 if (log) 657 { 658 log->Printf("Discarding thread plans for thread (tid = 0x%4.4llx, force %d)", GetID(), force); 659 } 660 661 if (force) 662 { 663 int stack_size = m_plan_stack.size(); 664 for (int i = stack_size - 1; i > 0; i--) 665 { 666 DiscardPlan(); 667 } 668 return; 669 } 670 671 while (1) 672 { 673 674 int master_plan_idx; 675 bool discard; 676 677 // Find the first master plan, see if it wants discarding, and if yes discard up to it. 678 for (master_plan_idx = m_plan_stack.size() - 1; master_plan_idx >= 0; master_plan_idx--) 679 { 680 if (m_plan_stack[master_plan_idx]->IsMasterPlan()) 681 { 682 discard = m_plan_stack[master_plan_idx]->OkayToDiscard(); 683 break; 684 } 685 } 686 687 if (discard) 688 { 689 // First pop all the dependent plans: 690 for (int i = m_plan_stack.size() - 1; i > master_plan_idx; i--) 691 { 692 693 // FIXME: Do we need a finalize here, or is the rule that "PrepareForStop" 694 // for the plan leaves it in a state that it is safe to pop the plan 695 // with no more notice? 696 DiscardPlan(); 697 } 698 699 // Now discard the master plan itself. 700 // The bottom-most plan never gets discarded. "OkayToDiscard" for it means 701 // discard it's dependent plans, but not it... 702 if (master_plan_idx > 0) 703 { 704 DiscardPlan(); 705 } 706 } 707 else 708 { 709 // If the master plan doesn't want to get discarded, then we're done. 710 break; 711 } 712 713 } 714 } 715 716 ThreadPlan * 717 Thread::QueueFundamentalPlan (bool abort_other_plans) 718 { 719 ThreadPlanSP thread_plan_sp (new ThreadPlanBase(*this)); 720 QueueThreadPlan (thread_plan_sp, abort_other_plans); 721 return thread_plan_sp.get(); 722 } 723 724 ThreadPlan * 725 Thread::QueueThreadPlanForStepSingleInstruction 726 ( 727 bool step_over, 728 bool abort_other_plans, 729 bool stop_other_threads 730 ) 731 { 732 ThreadPlanSP thread_plan_sp (new ThreadPlanStepInstruction (*this, step_over, stop_other_threads, eVoteNoOpinion, eVoteNoOpinion)); 733 QueueThreadPlan (thread_plan_sp, abort_other_plans); 734 return thread_plan_sp.get(); 735 } 736 737 ThreadPlan * 738 Thread::QueueThreadPlanForStepRange 739 ( 740 bool abort_other_plans, 741 StepType type, 742 const AddressRange &range, 743 const SymbolContext &addr_context, 744 lldb::RunMode stop_other_threads, 745 bool avoid_code_without_debug_info 746 ) 747 { 748 ThreadPlanSP thread_plan_sp; 749 if (type == eStepTypeInto) 750 { 751 ThreadPlanStepInRange *plan = new ThreadPlanStepInRange (*this, range, addr_context, stop_other_threads); 752 if (avoid_code_without_debug_info) 753 plan->GetFlags().Set (ThreadPlanShouldStopHere::eAvoidNoDebug); 754 else 755 plan->GetFlags().Clear (ThreadPlanShouldStopHere::eAvoidNoDebug); 756 thread_plan_sp.reset (plan); 757 } 758 else 759 thread_plan_sp.reset (new ThreadPlanStepOverRange (*this, range, addr_context, stop_other_threads)); 760 761 QueueThreadPlan (thread_plan_sp, abort_other_plans); 762 return thread_plan_sp.get(); 763 } 764 765 766 ThreadPlan * 767 Thread::QueueThreadPlanForStepOverBreakpointPlan (bool abort_other_plans) 768 { 769 ThreadPlanSP thread_plan_sp (new ThreadPlanStepOverBreakpoint (*this)); 770 QueueThreadPlan (thread_plan_sp, abort_other_plans); 771 return thread_plan_sp.get(); 772 } 773 774 ThreadPlan * 775 Thread::QueueThreadPlanForStepOut 776 ( 777 bool abort_other_plans, 778 SymbolContext *addr_context, 779 bool first_insn, 780 bool stop_other_threads, 781 Vote stop_vote, 782 Vote run_vote, 783 uint32_t frame_idx 784 ) 785 { 786 ThreadPlanSP thread_plan_sp (new ThreadPlanStepOut (*this, 787 addr_context, 788 first_insn, 789 stop_other_threads, 790 stop_vote, 791 run_vote, 792 frame_idx)); 793 QueueThreadPlan (thread_plan_sp, abort_other_plans); 794 return thread_plan_sp.get(); 795 } 796 797 ThreadPlan * 798 Thread::QueueThreadPlanForStepThrough (bool abort_other_plans, bool stop_other_threads) 799 { 800 // Try the dynamic loader first: 801 ThreadPlanSP thread_plan_sp(GetProcess().GetDynamicLoader()->GetStepThroughTrampolinePlan (*this, stop_other_threads)); 802 // If that didn't come up with anything, try the ObjC runtime plugin: 803 if (thread_plan_sp.get() == NULL) 804 { 805 ObjCLanguageRuntime *objc_runtime = GetProcess().GetObjCLanguageRuntime(); 806 if (objc_runtime) 807 thread_plan_sp = objc_runtime->GetStepThroughTrampolinePlan (*this, stop_other_threads); 808 } 809 810 if (thread_plan_sp.get() == NULL) 811 { 812 thread_plan_sp.reset(new ThreadPlanStepThrough (*this, stop_other_threads)); 813 if (thread_plan_sp && !thread_plan_sp->ValidatePlan (NULL)) 814 return NULL; 815 } 816 QueueThreadPlan (thread_plan_sp, abort_other_plans); 817 return thread_plan_sp.get(); 818 } 819 820 ThreadPlan * 821 Thread::QueueThreadPlanForCallFunction (bool abort_other_plans, 822 Address& function, 823 lldb::addr_t arg, 824 bool stop_other_threads, 825 bool discard_on_error) 826 { 827 ThreadPlanSP thread_plan_sp (new ThreadPlanCallFunction (*this, function, arg, stop_other_threads, discard_on_error)); 828 QueueThreadPlan (thread_plan_sp, abort_other_plans); 829 return thread_plan_sp.get(); 830 } 831 832 ThreadPlan * 833 Thread::QueueThreadPlanForRunToAddress (bool abort_other_plans, 834 Address &target_addr, 835 bool stop_other_threads) 836 { 837 ThreadPlanSP thread_plan_sp (new ThreadPlanRunToAddress (*this, target_addr, stop_other_threads)); 838 QueueThreadPlan (thread_plan_sp, abort_other_plans); 839 return thread_plan_sp.get(); 840 } 841 842 ThreadPlan * 843 Thread::QueueThreadPlanForStepUntil (bool abort_other_plans, 844 lldb::addr_t *address_list, 845 size_t num_addresses, 846 bool stop_other_threads, 847 uint32_t frame_idx) 848 { 849 ThreadPlanSP thread_plan_sp (new ThreadPlanStepUntil (*this, address_list, num_addresses, stop_other_threads, frame_idx)); 850 QueueThreadPlan (thread_plan_sp, abort_other_plans); 851 return thread_plan_sp.get(); 852 853 } 854 855 uint32_t 856 Thread::GetIndexID () const 857 { 858 return m_index_id; 859 } 860 861 void 862 Thread::DumpThreadPlans (lldb_private::Stream *s) const 863 { 864 uint32_t stack_size = m_plan_stack.size(); 865 int i; 866 s->Indent(); 867 s->Printf ("Plan Stack for thread #%u: tid = 0x%4.4llx, stack_size = %d\n", GetIndexID(), GetID(), stack_size); 868 for (i = stack_size - 1; i >= 0; i--) 869 { 870 s->IndentMore(); 871 s->Indent(); 872 s->Printf ("Element %d: ", i); 873 m_plan_stack[i]->GetDescription (s, eDescriptionLevelFull); 874 s->EOL(); 875 s->IndentLess(); 876 } 877 878 stack_size = m_completed_plan_stack.size(); 879 if (stack_size > 0) 880 { 881 s->Indent(); 882 s->Printf ("Completed Plan Stack: %d elements.\n", stack_size); 883 for (i = stack_size - 1; i >= 0; i--) 884 { 885 s->IndentMore(); 886 s->Indent(); 887 s->Printf ("Element %d: ", i); 888 m_completed_plan_stack[i]->GetDescription (s, eDescriptionLevelFull); 889 s->EOL(); 890 s->IndentLess(); 891 } 892 } 893 894 stack_size = m_discarded_plan_stack.size(); 895 if (stack_size > 0) 896 { 897 s->Indent(); 898 s->Printf ("Discarded Plan Stack: %d elements.\n", stack_size); 899 for (i = stack_size - 1; i >= 0; i--) 900 { 901 s->IndentMore(); 902 s->Indent(); 903 s->Printf ("Element %d: ", i); 904 m_discarded_plan_stack[i]->GetDescription (s, eDescriptionLevelFull); 905 s->EOL(); 906 s->IndentLess(); 907 } 908 } 909 910 } 911 912 Target * 913 Thread::CalculateTarget () 914 { 915 return m_process.CalculateTarget(); 916 } 917 918 Process * 919 Thread::CalculateProcess () 920 { 921 return &m_process; 922 } 923 924 Thread * 925 Thread::CalculateThread () 926 { 927 return this; 928 } 929 930 StackFrame * 931 Thread::CalculateStackFrame () 932 { 933 return NULL; 934 } 935 936 void 937 Thread::CalculateExecutionContext (ExecutionContext &exe_ctx) 938 { 939 m_process.CalculateExecutionContext (exe_ctx); 940 exe_ctx.SetThreadPtr (this); 941 exe_ctx.SetFramePtr (NULL); 942 } 943 944 945 StackFrameList & 946 Thread::GetStackFrameList () 947 { 948 if (!m_curr_frames_sp) 949 m_curr_frames_sp.reset (new StackFrameList (*this, m_prev_frames_sp, true)); 950 return *m_curr_frames_sp; 951 } 952 953 void 954 Thread::ClearStackFrames () 955 { 956 if (m_curr_frames_sp && m_curr_frames_sp->GetNumFrames (false) > 1) 957 m_prev_frames_sp.swap (m_curr_frames_sp); 958 m_curr_frames_sp.reset(); 959 } 960 961 lldb::StackFrameSP 962 Thread::GetFrameWithConcreteFrameIndex (uint32_t unwind_idx) 963 { 964 return GetStackFrameList().GetFrameWithConcreteFrameIndex (unwind_idx); 965 } 966 967 void 968 Thread::DumpUsingSettingsFormat (Stream &strm, uint32_t frame_idx) 969 { 970 ExecutionContext exe_ctx; 971 StackFrameSP frame_sp; 972 SymbolContext frame_sc; 973 CalculateExecutionContext (exe_ctx); 974 975 if (frame_idx != LLDB_INVALID_INDEX32) 976 { 977 frame_sp = GetStackFrameAtIndex (frame_idx); 978 if (frame_sp) 979 { 980 exe_ctx.SetFrameSP(frame_sp); 981 frame_sc = frame_sp->GetSymbolContext(eSymbolContextEverything); 982 } 983 } 984 985 const char *thread_format = GetProcess().GetTarget().GetDebugger().GetThreadFormat(); 986 assert (thread_format); 987 const char *end = NULL; 988 Debugger::FormatPrompt (thread_format, 989 frame_sp ? &frame_sc : NULL, 990 &exe_ctx, 991 NULL, 992 strm, 993 &end); 994 } 995 996 lldb::ThreadSP 997 Thread::GetSP () 998 { 999 // This object contains an instrusive ref count base class so we can 1000 // easily make a shared pointer to this object 1001 return ThreadSP(this); 1002 } 1003 1004 1005 void 1006 Thread::SettingsInitialize () 1007 { 1008 UserSettingsControllerSP &usc = GetSettingsController(); 1009 usc.reset (new SettingsController); 1010 UserSettingsController::InitializeSettingsController (usc, 1011 SettingsController::global_settings_table, 1012 SettingsController::instance_settings_table); 1013 1014 // Now call SettingsInitialize() on each 'child' setting of Thread. 1015 // Currently there are none. 1016 } 1017 1018 void 1019 Thread::SettingsTerminate () 1020 { 1021 // Must call SettingsTerminate() on each 'child' setting of Thread before terminating Thread settings. 1022 // Currently there are none. 1023 1024 // Now terminate Thread Settings. 1025 1026 UserSettingsControllerSP &usc = GetSettingsController(); 1027 UserSettingsController::FinalizeSettingsController (usc); 1028 usc.reset(); 1029 } 1030 1031 UserSettingsControllerSP & 1032 Thread::GetSettingsController () 1033 { 1034 static UserSettingsControllerSP g_settings_controller; 1035 return g_settings_controller; 1036 } 1037 1038 void 1039 Thread::UpdateInstanceName () 1040 { 1041 StreamString sstr; 1042 const char *name = GetName(); 1043 1044 if (name && name[0] != '\0') 1045 sstr.Printf ("%s", name); 1046 else if ((GetIndexID() != 0) || (GetID() != 0)) 1047 sstr.Printf ("0x%4.4x", GetIndexID()); 1048 1049 if (sstr.GetSize() > 0) 1050 Thread::GetSettingsController()->RenameInstanceSettings (GetInstanceName().AsCString(), sstr.GetData()); 1051 } 1052 1053 lldb::StackFrameSP 1054 Thread::GetStackFrameSPForStackFramePtr (StackFrame *stack_frame_ptr) 1055 { 1056 return GetStackFrameList().GetStackFrameSPForStackFramePtr (stack_frame_ptr); 1057 } 1058 1059 const char * 1060 Thread::StopReasonAsCString (lldb::StopReason reason) 1061 { 1062 switch (reason) 1063 { 1064 case eStopReasonInvalid: return "invalid"; 1065 case eStopReasonNone: return "none"; 1066 case eStopReasonTrace: return "trace"; 1067 case eStopReasonBreakpoint: return "breakpoint"; 1068 case eStopReasonWatchpoint: return "watchpoint"; 1069 case eStopReasonSignal: return "signal"; 1070 case eStopReasonException: return "exception"; 1071 case eStopReasonPlanComplete: return "plan complete"; 1072 } 1073 1074 1075 static char unknown_state_string[64]; 1076 snprintf(unknown_state_string, sizeof (unknown_state_string), "StopReason = %i", reason); 1077 return unknown_state_string; 1078 } 1079 1080 const char * 1081 Thread::RunModeAsCString (lldb::RunMode mode) 1082 { 1083 switch (mode) 1084 { 1085 case eOnlyThisThread: return "only this thread"; 1086 case eAllThreads: return "all threads"; 1087 case eOnlyDuringStepping: return "only during stepping"; 1088 } 1089 1090 static char unknown_state_string[64]; 1091 snprintf(unknown_state_string, sizeof (unknown_state_string), "RunMode = %i", mode); 1092 return unknown_state_string; 1093 } 1094 1095 size_t 1096 Thread::GetStatus (Stream &strm, uint32_t start_frame, uint32_t num_frames, uint32_t num_frames_with_source) 1097 { 1098 size_t num_frames_shown = 0; 1099 strm.Indent(); 1100 strm.Printf("%c ", GetProcess().GetThreadList().GetSelectedThread().get() == this ? '*' : ' '); 1101 if (GetProcess().GetTarget().GetDebugger().GetUseExternalEditor()) 1102 { 1103 StackFrameSP frame_sp = GetStackFrameAtIndex(start_frame); 1104 if (frame_sp) 1105 { 1106 SymbolContext frame_sc(frame_sp->GetSymbolContext (eSymbolContextLineEntry)); 1107 if (frame_sc.line_entry.line != 0 && frame_sc.line_entry.file) 1108 { 1109 Host::OpenFileInExternalEditor (frame_sc.line_entry.file, frame_sc.line_entry.line); 1110 } 1111 } 1112 } 1113 1114 DumpUsingSettingsFormat (strm, start_frame); 1115 1116 if (num_frames > 0) 1117 { 1118 strm.IndentMore(); 1119 1120 const bool show_frame_info = true; 1121 const uint32_t source_lines_before = 3; 1122 const uint32_t source_lines_after = 3; 1123 strm.IndentMore (); 1124 num_frames_shown = GetStackFrameList ().GetStatus (strm, 1125 start_frame, 1126 num_frames, 1127 show_frame_info, 1128 num_frames_with_source, 1129 source_lines_before, 1130 source_lines_after); 1131 strm.IndentLess(); 1132 strm.IndentLess(); 1133 } 1134 return num_frames_shown; 1135 } 1136 1137 size_t 1138 Thread::GetStackFrameStatus (Stream& strm, 1139 uint32_t first_frame, 1140 uint32_t num_frames, 1141 bool show_frame_info, 1142 uint32_t num_frames_with_source, 1143 uint32_t source_lines_before, 1144 uint32_t source_lines_after) 1145 { 1146 return GetStackFrameList().GetStatus (strm, 1147 first_frame, 1148 num_frames, 1149 show_frame_info, 1150 num_frames_with_source, 1151 source_lines_before, 1152 source_lines_after); 1153 } 1154 1155 bool 1156 Thread::SaveFrameZeroState (RegisterCheckpoint &checkpoint) 1157 { 1158 lldb::StackFrameSP frame_sp(GetStackFrameAtIndex (0)); 1159 if (frame_sp) 1160 { 1161 checkpoint.SetStackID(frame_sp->GetStackID()); 1162 return frame_sp->GetRegisterContext()->ReadAllRegisterValues (checkpoint.GetData()); 1163 } 1164 return false; 1165 } 1166 1167 bool 1168 Thread::RestoreSaveFrameZero (const RegisterCheckpoint &checkpoint) 1169 { 1170 lldb::StackFrameSP frame_sp(GetStackFrameAtIndex (0)); 1171 if (frame_sp) 1172 { 1173 bool ret = frame_sp->GetRegisterContext()->WriteAllRegisterValues (checkpoint.GetData()); 1174 1175 // Clear out all stack frames as our world just changed. 1176 ClearStackFrames(); 1177 frame_sp->GetRegisterContext()->InvalidateIfNeeded(true); 1178 1179 return ret; 1180 } 1181 return false; 1182 } 1183 1184 Unwind * 1185 Thread::GetUnwinder () 1186 { 1187 if (m_unwinder_ap.get() == NULL) 1188 { 1189 const ArchSpec target_arch (GetProcess().GetTarget().GetArchitecture ()); 1190 const llvm::Triple::ArchType machine = target_arch.GetMachine(); 1191 switch (machine) 1192 { 1193 case llvm::Triple::x86_64: 1194 case llvm::Triple::x86: 1195 case llvm::Triple::arm: 1196 case llvm::Triple::thumb: 1197 m_unwinder_ap.reset (new UnwindLLDB (*this)); 1198 break; 1199 1200 default: 1201 if (target_arch.GetTriple().getVendor() == llvm::Triple::Apple) 1202 m_unwinder_ap.reset (new UnwindMacOSXFrameBackchain (*this)); 1203 break; 1204 } 1205 } 1206 return m_unwinder_ap.get(); 1207 } 1208 1209 1210 #pragma mark "Thread::SettingsController" 1211 //-------------------------------------------------------------- 1212 // class Thread::SettingsController 1213 //-------------------------------------------------------------- 1214 1215 Thread::SettingsController::SettingsController () : 1216 UserSettingsController ("thread", Process::GetSettingsController()) 1217 { 1218 m_default_settings.reset (new ThreadInstanceSettings (*this, false, 1219 InstanceSettings::GetDefaultName().AsCString())); 1220 } 1221 1222 Thread::SettingsController::~SettingsController () 1223 { 1224 } 1225 1226 lldb::InstanceSettingsSP 1227 Thread::SettingsController::CreateInstanceSettings (const char *instance_name) 1228 { 1229 ThreadInstanceSettings *new_settings = new ThreadInstanceSettings (*GetSettingsController(), 1230 false, 1231 instance_name); 1232 lldb::InstanceSettingsSP new_settings_sp (new_settings); 1233 return new_settings_sp; 1234 } 1235 1236 #pragma mark "ThreadInstanceSettings" 1237 //-------------------------------------------------------------- 1238 // class ThreadInstanceSettings 1239 //-------------------------------------------------------------- 1240 1241 ThreadInstanceSettings::ThreadInstanceSettings (UserSettingsController &owner, bool live_instance, const char *name) : 1242 InstanceSettings (owner, name ? name : InstanceSettings::InvalidName().AsCString(), live_instance), 1243 m_avoid_regexp_ap (), 1244 m_trace_enabled (false) 1245 { 1246 // CopyInstanceSettings is a pure virtual function in InstanceSettings; it therefore cannot be called 1247 // until the vtables for ThreadInstanceSettings are properly set up, i.e. AFTER all the initializers. 1248 // For this reason it has to be called here, rather than in the initializer or in the parent constructor. 1249 // This is true for CreateInstanceName() too. 1250 1251 if (GetInstanceName() == InstanceSettings::InvalidName()) 1252 { 1253 ChangeInstanceName (std::string (CreateInstanceName().AsCString())); 1254 m_owner.RegisterInstanceSettings (this); 1255 } 1256 1257 if (live_instance) 1258 { 1259 const lldb::InstanceSettingsSP &pending_settings = m_owner.FindPendingSettings (m_instance_name); 1260 CopyInstanceSettings (pending_settings,false); 1261 //m_owner.RemovePendingSettings (m_instance_name); 1262 } 1263 } 1264 1265 ThreadInstanceSettings::ThreadInstanceSettings (const ThreadInstanceSettings &rhs) : 1266 InstanceSettings (*Thread::GetSettingsController(), CreateInstanceName().AsCString()), 1267 m_avoid_regexp_ap (), 1268 m_trace_enabled (rhs.m_trace_enabled) 1269 { 1270 if (m_instance_name != InstanceSettings::GetDefaultName()) 1271 { 1272 const lldb::InstanceSettingsSP &pending_settings = m_owner.FindPendingSettings (m_instance_name); 1273 CopyInstanceSettings (pending_settings,false); 1274 m_owner.RemovePendingSettings (m_instance_name); 1275 } 1276 if (rhs.m_avoid_regexp_ap.get() != NULL) 1277 m_avoid_regexp_ap.reset(new RegularExpression(rhs.m_avoid_regexp_ap->GetText())); 1278 } 1279 1280 ThreadInstanceSettings::~ThreadInstanceSettings () 1281 { 1282 } 1283 1284 ThreadInstanceSettings& 1285 ThreadInstanceSettings::operator= (const ThreadInstanceSettings &rhs) 1286 { 1287 if (this != &rhs) 1288 { 1289 if (rhs.m_avoid_regexp_ap.get() != NULL) 1290 m_avoid_regexp_ap.reset(new RegularExpression(rhs.m_avoid_regexp_ap->GetText())); 1291 else 1292 m_avoid_regexp_ap.reset(NULL); 1293 } 1294 m_trace_enabled = rhs.m_trace_enabled; 1295 return *this; 1296 } 1297 1298 1299 void 1300 ThreadInstanceSettings::UpdateInstanceSettingsVariable (const ConstString &var_name, 1301 const char *index_value, 1302 const char *value, 1303 const ConstString &instance_name, 1304 const SettingEntry &entry, 1305 VarSetOperationType op, 1306 Error &err, 1307 bool pending) 1308 { 1309 if (var_name == StepAvoidRegexpVarName()) 1310 { 1311 std::string regexp_text; 1312 if (m_avoid_regexp_ap.get() != NULL) 1313 regexp_text.append (m_avoid_regexp_ap->GetText()); 1314 UserSettingsController::UpdateStringVariable (op, regexp_text, value, err); 1315 if (regexp_text.empty()) 1316 m_avoid_regexp_ap.reset(); 1317 else 1318 { 1319 m_avoid_regexp_ap.reset(new RegularExpression(regexp_text.c_str())); 1320 1321 } 1322 } 1323 else if (var_name == GetTraceThreadVarName()) 1324 { 1325 bool success; 1326 bool result = Args::StringToBoolean(value, false, &success); 1327 1328 if (success) 1329 { 1330 m_trace_enabled = result; 1331 if (!pending) 1332 { 1333 Thread *myself = static_cast<Thread *> (this); 1334 myself->EnableTracer(m_trace_enabled, true); 1335 } 1336 } 1337 else 1338 { 1339 err.SetErrorStringWithFormat ("Bad value \"%s\" for trace-thread, should be Boolean.", value); 1340 } 1341 1342 } 1343 } 1344 1345 void 1346 ThreadInstanceSettings::CopyInstanceSettings (const lldb::InstanceSettingsSP &new_settings, 1347 bool pending) 1348 { 1349 if (new_settings.get() == NULL) 1350 return; 1351 1352 ThreadInstanceSettings *new_process_settings = (ThreadInstanceSettings *) new_settings.get(); 1353 if (new_process_settings->GetSymbolsToAvoidRegexp() != NULL) 1354 m_avoid_regexp_ap.reset (new RegularExpression (new_process_settings->GetSymbolsToAvoidRegexp()->GetText())); 1355 else 1356 m_avoid_regexp_ap.reset (); 1357 } 1358 1359 bool 1360 ThreadInstanceSettings::GetInstanceSettingsValue (const SettingEntry &entry, 1361 const ConstString &var_name, 1362 StringList &value, 1363 Error *err) 1364 { 1365 if (var_name == StepAvoidRegexpVarName()) 1366 { 1367 if (m_avoid_regexp_ap.get() != NULL) 1368 { 1369 std::string regexp_text("\""); 1370 regexp_text.append(m_avoid_regexp_ap->GetText()); 1371 regexp_text.append ("\""); 1372 value.AppendString (regexp_text.c_str()); 1373 } 1374 1375 } 1376 else if (var_name == GetTraceThreadVarName()) 1377 { 1378 value.AppendString(m_trace_enabled ? "true" : "false"); 1379 } 1380 else 1381 { 1382 if (err) 1383 err->SetErrorStringWithFormat ("unrecognized variable name '%s'", var_name.AsCString()); 1384 return false; 1385 } 1386 return true; 1387 } 1388 1389 const ConstString 1390 ThreadInstanceSettings::CreateInstanceName () 1391 { 1392 static int instance_count = 1; 1393 StreamString sstr; 1394 1395 sstr.Printf ("thread_%d", instance_count); 1396 ++instance_count; 1397 1398 const ConstString ret_val (sstr.GetData()); 1399 return ret_val; 1400 } 1401 1402 const ConstString & 1403 ThreadInstanceSettings::StepAvoidRegexpVarName () 1404 { 1405 static ConstString step_avoid_var_name ("step-avoid-regexp"); 1406 1407 return step_avoid_var_name; 1408 } 1409 1410 const ConstString & 1411 ThreadInstanceSettings::GetTraceThreadVarName () 1412 { 1413 static ConstString trace_thread_var_name ("trace-thread"); 1414 1415 return trace_thread_var_name; 1416 } 1417 1418 //-------------------------------------------------- 1419 // SettingsController Variable Tables 1420 //-------------------------------------------------- 1421 1422 SettingEntry 1423 Thread::SettingsController::global_settings_table[] = 1424 { 1425 //{ "var-name", var-type , "default", enum-table, init'd, hidden, "help-text"}, 1426 { NULL, eSetVarTypeNone, NULL, NULL, 0, 0, NULL } 1427 }; 1428 1429 1430 SettingEntry 1431 Thread::SettingsController::instance_settings_table[] = 1432 { 1433 //{ "var-name", var-type, "default", enum-table, init'd, hidden, "help-text"}, 1434 { "step-avoid-regexp", eSetVarTypeString, "", NULL, false, false, "A regular expression defining functions step-in won't stop in." }, 1435 { "trace-thread", eSetVarTypeBoolean, "false", NULL, false, false, "If true, this thread will single-step and log execution." }, 1436 { NULL, eSetVarTypeNone, NULL, NULL, 0, 0, NULL } 1437 }; 1438