1 //===-- ExecutionContext.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/ExecutionContext.h" 11 12 #include "lldb/Core/State.h" 13 #include "lldb/Target/ExecutionContextScope.h" 14 #include "lldb/Target/StackFrame.h" 15 #include "lldb/Target/Process.h" 16 #include "lldb/Target/Target.h" 17 #include "lldb/Target/Thread.h" 18 19 using namespace lldb_private; 20 21 ExecutionContext::ExecutionContext() : 22 m_target_sp (), 23 m_process_sp (), 24 m_thread_sp (), 25 m_frame_sp () 26 { 27 } 28 29 ExecutionContext::ExecutionContext (const ExecutionContext &rhs) : 30 m_target_sp(rhs.m_target_sp), 31 m_process_sp(rhs.m_process_sp), 32 m_thread_sp(rhs.m_thread_sp), 33 m_frame_sp(rhs.m_frame_sp) 34 { 35 } 36 37 ExecutionContext::ExecutionContext (const lldb::TargetSP &target_sp, bool get_process) : 38 m_target_sp (), 39 m_process_sp (), 40 m_thread_sp (), 41 m_frame_sp () 42 { 43 if (target_sp) 44 SetContext (target_sp, get_process); 45 } 46 47 ExecutionContext::ExecutionContext (const lldb::ProcessSP &process_sp) : 48 m_target_sp (), 49 m_process_sp (), 50 m_thread_sp (), 51 m_frame_sp () 52 { 53 if (process_sp) 54 SetContext (process_sp); 55 } 56 57 ExecutionContext::ExecutionContext (const lldb::ThreadSP &thread_sp) : 58 m_target_sp (), 59 m_process_sp (), 60 m_thread_sp (), 61 m_frame_sp () 62 { 63 if (thread_sp) 64 SetContext (thread_sp); 65 } 66 67 ExecutionContext::ExecutionContext (const lldb::StackFrameSP &frame_sp) : 68 m_target_sp (), 69 m_process_sp (), 70 m_thread_sp (), 71 m_frame_sp () 72 { 73 if (frame_sp) 74 SetContext (frame_sp); 75 } 76 77 ExecutionContext::ExecutionContext (const lldb::TargetWP &target_wp, bool get_process) : 78 m_target_sp (), 79 m_process_sp (), 80 m_thread_sp (), 81 m_frame_sp () 82 { 83 lldb::TargetSP target_sp(target_wp.lock()); 84 if (target_sp) 85 SetContext (target_sp, get_process); 86 } 87 88 ExecutionContext::ExecutionContext (const lldb::ProcessWP &process_wp) : 89 m_target_sp (), 90 m_process_sp (), 91 m_thread_sp (), 92 m_frame_sp () 93 { 94 lldb::ProcessSP process_sp(process_wp.lock()); 95 if (process_sp) 96 SetContext (process_sp); 97 } 98 99 ExecutionContext::ExecutionContext (const lldb::ThreadWP &thread_wp) : 100 m_target_sp (), 101 m_process_sp (), 102 m_thread_sp (), 103 m_frame_sp () 104 { 105 lldb::ThreadSP thread_sp(thread_wp.lock()); 106 if (thread_sp) 107 SetContext (thread_sp); 108 } 109 110 ExecutionContext::ExecutionContext (const lldb::StackFrameWP &frame_wp) : 111 m_target_sp (), 112 m_process_sp (), 113 m_thread_sp (), 114 m_frame_sp () 115 { 116 lldb::StackFrameSP frame_sp(frame_wp.lock()); 117 if (frame_sp) 118 SetContext (frame_sp); 119 } 120 121 ExecutionContext::ExecutionContext (Target* t, bool fill_current_process_thread_frame) : 122 m_target_sp (t->shared_from_this()), 123 m_process_sp (), 124 m_thread_sp (), 125 m_frame_sp () 126 { 127 if (t && fill_current_process_thread_frame) 128 { 129 m_process_sp = t->GetProcessSP(); 130 if (m_process_sp) 131 { 132 m_thread_sp = m_process_sp->GetThreadList().GetSelectedThread(); 133 if (m_thread_sp) 134 m_frame_sp = m_thread_sp->GetSelectedFrame(); 135 } 136 } 137 } 138 139 ExecutionContext::ExecutionContext(Process* process, Thread *thread, StackFrame *frame) : 140 m_target_sp (), 141 m_process_sp (process->shared_from_this()), 142 m_thread_sp (thread->shared_from_this()), 143 m_frame_sp (frame->shared_from_this()) 144 { 145 if (process) 146 m_target_sp = process->GetTarget().shared_from_this(); 147 } 148 149 ExecutionContext::ExecutionContext (const ExecutionContextRef &exe_ctx_ref) : 150 m_target_sp (exe_ctx_ref.GetTargetSP()), 151 m_process_sp (exe_ctx_ref.GetProcessSP()), 152 m_thread_sp (exe_ctx_ref.GetThreadSP()), 153 m_frame_sp (exe_ctx_ref.GetFrameSP()) 154 { 155 } 156 157 ExecutionContext::ExecutionContext (const ExecutionContextRef *exe_ctx_ref_ptr) : 158 m_target_sp (), 159 m_process_sp (), 160 m_thread_sp (), 161 m_frame_sp () 162 { 163 if (exe_ctx_ref_ptr) 164 { 165 m_target_sp = exe_ctx_ref_ptr->GetTargetSP(); 166 m_process_sp = exe_ctx_ref_ptr->GetProcessSP(); 167 m_thread_sp = exe_ctx_ref_ptr->GetThreadSP(); 168 m_frame_sp = exe_ctx_ref_ptr->GetFrameSP(); 169 } 170 } 171 172 ExecutionContext::ExecutionContext (const ExecutionContextRef *exe_ctx_ref_ptr, Mutex::Locker &locker) : 173 m_target_sp (), 174 m_process_sp (), 175 m_thread_sp (), 176 m_frame_sp () 177 { 178 if (exe_ctx_ref_ptr) 179 { 180 m_target_sp = exe_ctx_ref_ptr->GetTargetSP(); 181 if (m_target_sp) 182 { 183 locker.Lock(m_target_sp->GetAPIMutex()); 184 m_process_sp = exe_ctx_ref_ptr->GetProcessSP(); 185 m_thread_sp = exe_ctx_ref_ptr->GetThreadSP(); 186 m_frame_sp = exe_ctx_ref_ptr->GetFrameSP(); 187 } 188 } 189 } 190 191 ExecutionContext::ExecutionContext (const ExecutionContextRef &exe_ctx_ref, Mutex::Locker &locker) : 192 m_target_sp (exe_ctx_ref.GetTargetSP()), 193 m_process_sp (), 194 m_thread_sp (), 195 m_frame_sp () 196 { 197 if (m_target_sp) 198 { 199 locker.Lock(m_target_sp->GetAPIMutex()); 200 m_process_sp = exe_ctx_ref.GetProcessSP(); 201 m_thread_sp = exe_ctx_ref.GetThreadSP(); 202 m_frame_sp = exe_ctx_ref.GetFrameSP(); 203 } 204 } 205 206 ExecutionContext::ExecutionContext (ExecutionContextScope *exe_scope_ptr) : 207 m_target_sp (), 208 m_process_sp (), 209 m_thread_sp (), 210 m_frame_sp () 211 { 212 if (exe_scope_ptr) 213 exe_scope_ptr->CalculateExecutionContext (*this); 214 } 215 216 ExecutionContext::ExecutionContext (ExecutionContextScope &exe_scope_ref) 217 { 218 exe_scope_ref.CalculateExecutionContext (*this); 219 } 220 221 void 222 ExecutionContext::Clear() 223 { 224 m_target_sp.reset(); 225 m_process_sp.reset(); 226 m_thread_sp.reset(); 227 m_frame_sp.reset(); 228 } 229 230 ExecutionContext::~ExecutionContext() 231 { 232 } 233 234 uint32_t 235 ExecutionContext::GetAddressByteSize() const 236 { 237 if (m_target_sp && m_target_sp->GetArchitecture().IsValid()) 238 m_target_sp->GetArchitecture().GetAddressByteSize(); 239 if (m_process_sp) 240 m_process_sp->GetAddressByteSize(); 241 return sizeof(void *); 242 } 243 244 245 246 RegisterContext * 247 ExecutionContext::GetRegisterContext () const 248 { 249 if (m_frame_sp) 250 return m_frame_sp->GetRegisterContext().get(); 251 else if (m_thread_sp) 252 return m_thread_sp->GetRegisterContext().get(); 253 return NULL; 254 } 255 256 Target * 257 ExecutionContext::GetTargetPtr () const 258 { 259 if (m_target_sp) 260 return m_target_sp.get(); 261 if (m_process_sp) 262 return &m_process_sp->GetTarget(); 263 return NULL; 264 } 265 266 Process * 267 ExecutionContext::GetProcessPtr () const 268 { 269 if (m_process_sp) 270 return m_process_sp.get(); 271 if (m_target_sp) 272 return m_target_sp->GetProcessSP().get(); 273 return NULL; 274 } 275 276 ExecutionContextScope * 277 ExecutionContext::GetBestExecutionContextScope () const 278 { 279 if (m_frame_sp) 280 return m_frame_sp.get(); 281 if (m_thread_sp) 282 return m_thread_sp.get(); 283 if (m_process_sp) 284 return m_process_sp.get(); 285 return m_target_sp.get(); 286 } 287 288 Target & 289 ExecutionContext::GetTargetRef () const 290 { 291 #if defined (LLDB_CONFIGURATION_DEBUG) || defined (LLDB_CONFIGURATION_RELEASE) 292 assert (m_target_sp.get()); 293 #endif 294 return *m_target_sp; 295 } 296 297 Process & 298 ExecutionContext::GetProcessRef () const 299 { 300 #if defined (LLDB_CONFIGURATION_DEBUG) || defined (LLDB_CONFIGURATION_RELEASE) 301 assert (m_process_sp.get()); 302 #endif 303 return *m_process_sp; 304 } 305 306 Thread & 307 ExecutionContext::GetThreadRef () const 308 { 309 #if defined (LLDB_CONFIGURATION_DEBUG) || defined (LLDB_CONFIGURATION_RELEASE) 310 assert (m_thread_sp.get()); 311 #endif 312 return *m_thread_sp; 313 } 314 315 StackFrame & 316 ExecutionContext::GetFrameRef () const 317 { 318 #if defined (LLDB_CONFIGURATION_DEBUG) || defined (LLDB_CONFIGURATION_RELEASE) 319 assert (m_frame_sp.get()); 320 #endif 321 return *m_frame_sp; 322 } 323 324 void 325 ExecutionContext::SetTargetSP (const lldb::TargetSP &target_sp) 326 { 327 m_target_sp = target_sp; 328 } 329 330 void 331 ExecutionContext::SetProcessSP (const lldb::ProcessSP &process_sp) 332 { 333 m_process_sp = process_sp; 334 } 335 336 void 337 ExecutionContext::SetThreadSP (const lldb::ThreadSP &thread_sp) 338 { 339 m_thread_sp = thread_sp; 340 } 341 342 void 343 ExecutionContext::SetFrameSP (const lldb::StackFrameSP &frame_sp) 344 { 345 m_frame_sp = frame_sp; 346 } 347 348 void 349 ExecutionContext::SetTargetPtr (Target* target) 350 { 351 if (target) 352 m_target_sp = target->shared_from_this(); 353 else 354 m_target_sp.reset(); 355 } 356 357 void 358 ExecutionContext::SetProcessPtr (Process *process) 359 { 360 if (process) 361 m_process_sp = process->shared_from_this(); 362 else 363 m_process_sp.reset(); 364 } 365 366 void 367 ExecutionContext::SetThreadPtr (Thread *thread) 368 { 369 if (thread) 370 m_thread_sp = thread->shared_from_this(); 371 else 372 m_thread_sp.reset(); 373 } 374 375 void 376 ExecutionContext::SetFramePtr (StackFrame *frame) 377 { 378 if (frame) 379 m_frame_sp = frame->shared_from_this(); 380 else 381 m_frame_sp.reset(); 382 } 383 384 void 385 ExecutionContext::SetContext (const lldb::TargetSP &target_sp, bool get_process) 386 { 387 m_target_sp = target_sp; 388 if (get_process && target_sp) 389 m_process_sp = target_sp->GetProcessSP(); 390 else 391 m_process_sp.reset(); 392 m_thread_sp.reset(); 393 m_frame_sp.reset(); 394 } 395 396 void 397 ExecutionContext::SetContext (const lldb::ProcessSP &process_sp) 398 { 399 m_process_sp = process_sp; 400 if (process_sp) 401 m_target_sp = process_sp->GetTarget().shared_from_this(); 402 else 403 m_target_sp.reset(); 404 m_thread_sp.reset(); 405 m_frame_sp.reset(); 406 } 407 408 void 409 ExecutionContext::SetContext (const lldb::ThreadSP &thread_sp) 410 { 411 m_frame_sp.reset(); 412 m_thread_sp = thread_sp; 413 if (thread_sp) 414 { 415 m_process_sp = thread_sp->GetProcess(); 416 if (m_process_sp) 417 m_target_sp = m_process_sp->GetTarget().shared_from_this(); 418 else 419 m_target_sp.reset(); 420 } 421 else 422 { 423 m_target_sp.reset(); 424 m_process_sp.reset(); 425 } 426 } 427 428 void 429 ExecutionContext::SetContext (const lldb::StackFrameSP &frame_sp) 430 { 431 m_frame_sp = frame_sp; 432 if (frame_sp) 433 { 434 m_thread_sp = frame_sp->CalculateThread(); 435 if (m_thread_sp) 436 { 437 m_process_sp = m_thread_sp->GetProcess(); 438 if (m_process_sp) 439 m_target_sp = m_process_sp->GetTarget().shared_from_this(); 440 else 441 m_target_sp.reset(); 442 } 443 else 444 { 445 m_target_sp.reset(); 446 m_process_sp.reset(); 447 } 448 } 449 else 450 { 451 m_target_sp.reset(); 452 m_process_sp.reset(); 453 m_thread_sp.reset(); 454 } 455 } 456 457 ExecutionContext & 458 ExecutionContext::operator =(const ExecutionContext &rhs) 459 { 460 if (this != &rhs) 461 { 462 m_target_sp = rhs.m_target_sp; 463 m_process_sp = rhs.m_process_sp; 464 m_thread_sp = rhs.m_thread_sp; 465 m_frame_sp = rhs.m_frame_sp; 466 } 467 return *this; 468 } 469 470 bool 471 ExecutionContext::operator ==(const ExecutionContext &rhs) const 472 { 473 // Check that the frame shared pointers match, or both are valid and their stack 474 // IDs match since sometimes we get new objects that represent the same 475 // frame within a thread. 476 if ((m_frame_sp == rhs.m_frame_sp) || (m_frame_sp && rhs.m_frame_sp && m_frame_sp->GetStackID() == rhs.m_frame_sp->GetStackID())) 477 { 478 // Check that the thread shared pointers match, or both are valid and 479 // their thread IDs match since sometimes we get new objects that 480 // represent the same thread within a process. 481 if ((m_thread_sp == rhs.m_thread_sp) || (m_thread_sp && rhs.m_thread_sp && m_thread_sp->GetID() == rhs.m_thread_sp->GetID())) 482 { 483 // Processes and targets don't change much 484 return m_process_sp == rhs.m_process_sp && m_target_sp == rhs.m_target_sp; 485 } 486 } 487 return false; 488 } 489 490 bool 491 ExecutionContext::operator !=(const ExecutionContext &rhs) const 492 { 493 return !(*this == rhs); 494 } 495 496 bool 497 ExecutionContext::HasTargetScope () const 498 { 499 return ((bool) m_target_sp 500 && m_target_sp->IsValid()); 501 } 502 503 bool 504 ExecutionContext::HasProcessScope () const 505 { 506 return (HasTargetScope() 507 && ((bool) m_process_sp && m_process_sp->IsValid())); 508 } 509 510 bool 511 ExecutionContext::HasThreadScope () const 512 { 513 return (HasProcessScope() 514 && ((bool) m_thread_sp && m_thread_sp->IsValid())); 515 } 516 517 bool 518 ExecutionContext::HasFrameScope () const 519 { 520 return HasThreadScope() && m_frame_sp; 521 } 522 523 ExecutionContextRef::ExecutionContextRef() : 524 m_target_wp (), 525 m_process_wp (), 526 m_thread_wp (), 527 m_tid(LLDB_INVALID_THREAD_ID), 528 m_stack_id () 529 { 530 } 531 532 ExecutionContextRef::ExecutionContextRef (const ExecutionContext *exe_ctx) : 533 m_target_wp (), 534 m_process_wp (), 535 m_thread_wp (), 536 m_tid(LLDB_INVALID_THREAD_ID), 537 m_stack_id () 538 { 539 if (exe_ctx) 540 *this = *exe_ctx; 541 } 542 543 ExecutionContextRef::ExecutionContextRef (const ExecutionContext &exe_ctx) : 544 m_target_wp (), 545 m_process_wp (), 546 m_thread_wp (), 547 m_tid(LLDB_INVALID_THREAD_ID), 548 m_stack_id () 549 { 550 *this = exe_ctx; 551 } 552 553 554 ExecutionContextRef::ExecutionContextRef (Target *target, bool adopt_selected) : 555 m_target_wp(), 556 m_process_wp(), 557 m_thread_wp(), 558 m_tid(LLDB_INVALID_THREAD_ID), 559 m_stack_id () 560 { 561 SetTargetPtr (target, adopt_selected); 562 } 563 564 565 566 567 ExecutionContextRef::ExecutionContextRef (const ExecutionContextRef &rhs) : 568 m_target_wp (rhs.m_target_wp), 569 m_process_wp(rhs.m_process_wp), 570 m_thread_wp (rhs.m_thread_wp), 571 m_tid (rhs.m_tid), 572 m_stack_id (rhs.m_stack_id) 573 { 574 } 575 576 ExecutionContextRef & 577 ExecutionContextRef::operator =(const ExecutionContextRef &rhs) 578 { 579 if (this != &rhs) 580 { 581 m_target_wp = rhs.m_target_wp; 582 m_process_wp = rhs.m_process_wp; 583 m_thread_wp = rhs.m_thread_wp; 584 m_tid = rhs.m_tid; 585 m_stack_id = rhs.m_stack_id; 586 } 587 return *this; 588 } 589 590 ExecutionContextRef & 591 ExecutionContextRef::operator =(const ExecutionContext &exe_ctx) 592 { 593 m_target_wp = exe_ctx.GetTargetSP(); 594 m_process_wp = exe_ctx.GetProcessSP(); 595 lldb::ThreadSP thread_sp (exe_ctx.GetThreadSP()); 596 m_thread_wp = thread_sp; 597 if (thread_sp) 598 m_tid = thread_sp->GetID(); 599 else 600 m_tid = LLDB_INVALID_THREAD_ID; 601 lldb::StackFrameSP frame_sp (exe_ctx.GetFrameSP()); 602 if (frame_sp) 603 m_stack_id = frame_sp->GetStackID(); 604 else 605 m_stack_id.Clear(); 606 return *this; 607 } 608 609 void 610 ExecutionContextRef::Clear() 611 { 612 m_target_wp.reset(); 613 m_process_wp.reset(); 614 ClearThread(); 615 ClearFrame(); 616 } 617 618 ExecutionContextRef::~ExecutionContextRef() 619 { 620 } 621 622 void 623 ExecutionContextRef::SetTargetSP (const lldb::TargetSP &target_sp) 624 { 625 m_target_wp = target_sp; 626 } 627 628 void 629 ExecutionContextRef::SetProcessSP (const lldb::ProcessSP &process_sp) 630 { 631 if (process_sp) 632 { 633 m_process_wp = process_sp; 634 SetTargetSP (process_sp->GetTarget().shared_from_this()); 635 } 636 else 637 { 638 m_process_wp.reset(); 639 m_target_wp.reset(); 640 } 641 } 642 643 void 644 ExecutionContextRef::SetThreadSP (const lldb::ThreadSP &thread_sp) 645 { 646 if (thread_sp) 647 { 648 m_thread_wp = thread_sp; 649 m_tid = thread_sp->GetID(); 650 SetProcessSP (thread_sp->GetProcess()); 651 } 652 else 653 { 654 ClearThread(); 655 m_process_wp.reset(); 656 m_target_wp.reset(); 657 } 658 } 659 660 void 661 ExecutionContextRef::SetFrameSP (const lldb::StackFrameSP &frame_sp) 662 { 663 if (frame_sp) 664 { 665 m_stack_id = frame_sp->GetStackID(); 666 SetThreadSP (frame_sp->GetThread()); 667 } 668 else 669 { 670 ClearFrame(); 671 ClearThread(); 672 m_process_wp.reset(); 673 m_target_wp.reset(); 674 } 675 676 } 677 678 void 679 ExecutionContextRef::SetTargetPtr (Target* target, bool adopt_selected) 680 { 681 Clear(); 682 if (target) 683 { 684 lldb::TargetSP target_sp (target->shared_from_this()); 685 if (target_sp) 686 { 687 m_target_wp = target_sp; 688 if (adopt_selected) 689 { 690 lldb::ProcessSP process_sp (target_sp->GetProcessSP()); 691 if (process_sp) 692 { 693 m_process_wp = process_sp; 694 if (process_sp) 695 { 696 // Only fill in the thread and frame if our process is stopped 697 if (StateIsStoppedState (process_sp->GetState(), true)) 698 { 699 lldb::ThreadSP thread_sp (process_sp->GetThreadList().GetSelectedThread()); 700 if (!thread_sp) 701 thread_sp = process_sp->GetThreadList().GetThreadAtIndex(0); 702 703 if (thread_sp) 704 { 705 SetThreadSP (thread_sp); 706 lldb::StackFrameSP frame_sp (thread_sp->GetSelectedFrame()); 707 if (!frame_sp) 708 frame_sp = thread_sp->GetStackFrameAtIndex(0); 709 if (frame_sp) 710 SetFrameSP (frame_sp); 711 } 712 } 713 } 714 } 715 } 716 } 717 } 718 } 719 720 void 721 ExecutionContextRef::SetProcessPtr (Process *process) 722 { 723 if (process) 724 { 725 SetProcessSP(process->shared_from_this()); 726 } 727 else 728 { 729 m_process_wp.reset(); 730 m_target_wp.reset(); 731 } 732 } 733 734 void 735 ExecutionContextRef::SetThreadPtr (Thread *thread) 736 { 737 if (thread) 738 { 739 SetThreadSP (thread->shared_from_this()); 740 } 741 else 742 { 743 ClearThread(); 744 m_process_wp.reset(); 745 m_target_wp.reset(); 746 } 747 } 748 749 void 750 ExecutionContextRef::SetFramePtr (StackFrame *frame) 751 { 752 if (frame) 753 SetFrameSP (frame->shared_from_this()); 754 else 755 Clear(); 756 } 757 758 lldb::TargetSP 759 ExecutionContextRef::GetTargetSP () const 760 { 761 lldb::TargetSP target_sp(m_target_wp.lock()); 762 if (target_sp && !target_sp->IsValid()) 763 target_sp.reset(); 764 return target_sp; 765 } 766 767 lldb::ProcessSP 768 ExecutionContextRef::GetProcessSP () const 769 { 770 lldb::ProcessSP process_sp(m_process_wp.lock()); 771 if (process_sp && !process_sp->IsValid()) 772 process_sp.reset(); 773 return process_sp; 774 } 775 776 lldb::ThreadSP 777 ExecutionContextRef::GetThreadSP () const 778 { 779 lldb::ThreadSP thread_sp (m_thread_wp.lock()); 780 781 if (m_tid != LLDB_INVALID_THREAD_ID) 782 { 783 // We check if the thread has been destroyed in cases where clients 784 // might still have shared pointer to a thread, but the thread is 785 // not valid anymore (not part of the process) 786 if (!thread_sp || !thread_sp->IsValid()) 787 { 788 lldb::ProcessSP process_sp(GetProcessSP()); 789 if (process_sp && process_sp->IsValid()) 790 { 791 thread_sp = process_sp->GetThreadList().FindThreadByID(m_tid); 792 m_thread_wp = thread_sp; 793 } 794 } 795 } 796 797 // Check that we aren't about to return an invalid thread sp. We might return a NULL thread_sp, 798 // but don't return an invalid one. 799 800 if (thread_sp && !thread_sp->IsValid()) 801 thread_sp.reset(); 802 803 return thread_sp; 804 } 805 806 lldb::StackFrameSP 807 ExecutionContextRef::GetFrameSP () const 808 { 809 if (m_stack_id.IsValid()) 810 { 811 lldb::ThreadSP thread_sp (GetThreadSP()); 812 if (thread_sp) 813 return thread_sp->GetFrameWithStackID (m_stack_id); 814 } 815 return lldb::StackFrameSP(); 816 } 817 818 ExecutionContext 819 ExecutionContextRef::Lock () const 820 { 821 return ExecutionContext(this); 822 } 823 824 825
