contrib/llvm/tools/lldb/source/API/SBThread.cpp

   1 //===-- SBThread.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/API/SBThread.h"
  11
  12 #include "lldb/API/SBFileSpec.h"
  13 #include "lldb/API/SBStream.h"
  14 #include "lldb/API/SBSymbolContext.h"
  15 #include "lldb/Breakpoint/BreakpointLocation.h"
  16 #include "lldb/Core/Debugger.h"
  17 #include "lldb/Core/State.h"
  18 #include "lldb/Core/StreamFile.h"
  19 #include "lldb/Core/ValueObject.h"
  20 #include "lldb/Interpreter/CommandInterpreter.h"
  21 #include "lldb/Symbol/CompileUnit.h"
  22 #include "lldb/Symbol/SymbolContext.h"
  23 #include "lldb/Target/Process.h"
  24 #include "lldb/Target/Queue.h"
  25 #include "lldb/Target/StopInfo.h"
  26 #include "lldb/Target/SystemRuntime.h"
  27 #include "lldb/Target/Target.h"
  28 #include "lldb/Target/Thread.h"
  29 #include "lldb/Target/ThreadPlan.h"
  30 #include "lldb/Target/ThreadPlanStepInRange.h"
  31 #include "lldb/Target/ThreadPlanStepInstruction.h"
  32 #include "lldb/Target/ThreadPlanStepOut.h"
  33 #include "lldb/Target/ThreadPlanStepRange.h"
  34 #include "lldb/Target/UnixSignals.h"
  35 #include "lldb/Utility/Stream.h"
  36 #include "lldb/Utility/StructuredData.h"
  37
  38 #include "lldb/API/SBAddress.h"
  39 #include "lldb/API/SBDebugger.h"
  40 #include "lldb/API/SBEvent.h"
  41 #include "lldb/API/SBFrame.h"
  42 #include "lldb/API/SBProcess.h"
  43 #include "lldb/API/SBThreadCollection.h"
  44 #include "lldb/API/SBThreadPlan.h"
  45 #include "lldb/API/SBValue.h"
  46 #include "lldb/lldb-enumerations.h"
  47
  48 using namespace lldb;
  49 using namespace lldb_private;
  50
  51 const char *SBThread::GetBroadcasterClassName() {
  52   return Thread::GetStaticBroadcasterClass().AsCString();
  53 }
  54
  55 //----------------------------------------------------------------------
  56 // Constructors
  57 //----------------------------------------------------------------------
  58 SBThread::SBThread() : m_opaque_sp(new ExecutionContextRef()) {}
  59
  60 SBThread::SBThread(const ThreadSP &lldb_object_sp)
  61     : m_opaque_sp(new ExecutionContextRef(lldb_object_sp)) {}
  62
  63 SBThread::SBThread(const SBThread &rhs)
  64     : m_opaque_sp(new ExecutionContextRef(*rhs.m_opaque_sp)) {}
  65
  66 //----------------------------------------------------------------------
  67 // Assignment operator
  68 //----------------------------------------------------------------------
  69
  70 const lldb::SBThread &SBThread::operator=(const SBThread &rhs) {
  71   if (this != &rhs)
  72     *m_opaque_sp = *rhs.m_opaque_sp;
  73   return *this;
  74 }
  75
  76 //----------------------------------------------------------------------
  77 // Destructor
  78 //----------------------------------------------------------------------
  79 SBThread::~SBThread() {}
  80
  81 lldb::SBQueue SBThread::GetQueue() const {
  82   SBQueue sb_queue;
  83   QueueSP queue_sp;
  84   std::unique_lock<std::recursive_mutex> lock;
  85   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
  86
  87   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
  88   if (exe_ctx.HasThreadScope()) {
  89     Process::StopLocker stop_locker;
  90     if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
  91       queue_sp = exe_ctx.GetThreadPtr()->GetQueue();
  92       if (queue_sp) {
  93         sb_queue.SetQueue(queue_sp);
  94       }
  95     } else {
  96       if (log)
  97         log->Printf("SBThread(%p)::GetQueue() => error: process is running",
  98                     static_cast<void *>(exe_ctx.GetThreadPtr()));
  99     }
 100   }
 101
 102   if (log)
 103     log->Printf("SBThread(%p)::GetQueue () => SBQueue(%p)",
 104                 static_cast<void *>(exe_ctx.GetThreadPtr()),
 105                 static_cast<void *>(queue_sp.get()));
 106
 107   return sb_queue;
 108 }
 109
 110 bool SBThread::IsValid() const {
 111   std::unique_lock<std::recursive_mutex> lock;
 112   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 113
 114   Target *target = exe_ctx.GetTargetPtr();
 115   Process *process = exe_ctx.GetProcessPtr();
 116   if (target && process) {
 117     Process::StopLocker stop_locker;
 118     if (stop_locker.TryLock(&process->GetRunLock()))
 119       return m_opaque_sp->GetThreadSP().get() != NULL;
 120   }
 121   // Without a valid target & process, this thread can't be valid.
 122   return false;
 123 }
 124
 125 void SBThread::Clear() { m_opaque_sp->Clear(); }
 126
 127 StopReason SBThread::GetStopReason() {
 128   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 129
 130   StopReason reason = eStopReasonInvalid;
 131   std::unique_lock<std::recursive_mutex> lock;
 132   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 133
 134   if (exe_ctx.HasThreadScope()) {
 135     Process::StopLocker stop_locker;
 136     if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
 137       return exe_ctx.GetThreadPtr()->GetStopReason();
 138     } else {
 139       if (log)
 140         log->Printf(
 141             "SBThread(%p)::GetStopReason() => error: process is running",
 142             static_cast<void *>(exe_ctx.GetThreadPtr()));
 143     }
 144   }
 145
 146   if (log)
 147     log->Printf("SBThread(%p)::GetStopReason () => %s",
 148                 static_cast<void *>(exe_ctx.GetThreadPtr()),
 149                 Thread::StopReasonAsCString(reason));
 150
 151   return reason;
 152 }
 153
 154 size_t SBThread::GetStopReasonDataCount() {
 155   std::unique_lock<std::recursive_mutex> lock;
 156   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 157
 158   if (exe_ctx.HasThreadScope()) {
 159     Process::StopLocker stop_locker;
 160     if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
 161       StopInfoSP stop_info_sp = exe_ctx.GetThreadPtr()->GetStopInfo();
 162       if (stop_info_sp) {
 163         StopReason reason = stop_info_sp->GetStopReason();
 164         switch (reason) {
 165         case eStopReasonInvalid:
 166         case eStopReasonNone:
 167         case eStopReasonTrace:
 168         case eStopReasonExec:
 169         case eStopReasonPlanComplete:
 170         case eStopReasonThreadExiting:
 171         case eStopReasonInstrumentation:
 172           // There is no data for these stop reasons.
 173           return 0;
 174
 175         case eStopReasonBreakpoint: {
 176           break_id_t site_id = stop_info_sp->GetValue();
 177           lldb::BreakpointSiteSP bp_site_sp(
 178               exe_ctx.GetProcessPtr()->GetBreakpointSiteList().FindByID(
 179                   site_id));
 180           if (bp_site_sp)
 181             return bp_site_sp->GetNumberOfOwners() * 2;
 182           else
 183             return 0; // Breakpoint must have cleared itself...
 184         } break;
 185
 186         case eStopReasonWatchpoint:
 187           return 1;
 188
 189         case eStopReasonSignal:
 190           return 1;
 191
 192         case eStopReasonException:
 193           return 1;
 194         }
 195       }
 196     } else {
 197       Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 198       if (log)
 199         log->Printf("SBThread(%p)::GetStopReasonDataCount() => error: process "
 200                     "is running",
 201                     static_cast<void *>(exe_ctx.GetThreadPtr()));
 202     }
 203   }
 204   return 0;
 205 }
 206
 207 uint64_t SBThread::GetStopReasonDataAtIndex(uint32_t idx) {
 208   std::unique_lock<std::recursive_mutex> lock;
 209   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 210
 211   if (exe_ctx.HasThreadScope()) {
 212     Process::StopLocker stop_locker;
 213     if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
 214       Thread *thread = exe_ctx.GetThreadPtr();
 215       StopInfoSP stop_info_sp = thread->GetStopInfo();
 216       if (stop_info_sp) {
 217         StopReason reason = stop_info_sp->GetStopReason();
 218         switch (reason) {
 219         case eStopReasonInvalid:
 220         case eStopReasonNone:
 221         case eStopReasonTrace:
 222         case eStopReasonExec:
 223         case eStopReasonPlanComplete:
 224         case eStopReasonThreadExiting:
 225         case eStopReasonInstrumentation:
 226           // There is no data for these stop reasons.
 227           return 0;
 228
 229         case eStopReasonBreakpoint: {
 230           break_id_t site_id = stop_info_sp->GetValue();
 231           lldb::BreakpointSiteSP bp_site_sp(
 232               exe_ctx.GetProcessPtr()->GetBreakpointSiteList().FindByID(
 233                   site_id));
 234           if (bp_site_sp) {
 235             uint32_t bp_index = idx / 2;
 236             BreakpointLocationSP bp_loc_sp(
 237                 bp_site_sp->GetOwnerAtIndex(bp_index));
 238             if (bp_loc_sp) {
 239               if (idx & 1) {
 240                 // Odd idx, return the breakpoint location ID
 241                 return bp_loc_sp->GetID();
 242               } else {
 243                 // Even idx, return the breakpoint ID
 244                 return bp_loc_sp->GetBreakpoint().GetID();
 245               }
 246             }
 247           }
 248           return LLDB_INVALID_BREAK_ID;
 249         } break;
 250
 251         case eStopReasonWatchpoint:
 252           return stop_info_sp->GetValue();
 253
 254         case eStopReasonSignal:
 255           return stop_info_sp->GetValue();
 256
 257         case eStopReasonException:
 258           return stop_info_sp->GetValue();
 259         }
 260       }
 261     } else {
 262       Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 263       if (log)
 264         log->Printf("SBThread(%p)::GetStopReasonDataAtIndex() => error: "
 265                     "process is running",
 266                     static_cast<void *>(exe_ctx.GetThreadPtr()));
 267     }
 268   }
 269   return 0;
 270 }
 271
 272 bool SBThread::GetStopReasonExtendedInfoAsJSON(lldb::SBStream &stream) {
 273   Stream &strm = stream.ref();
 274
 275   std::unique_lock<std::recursive_mutex> lock;
 276   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 277
 278   if (!exe_ctx.HasThreadScope())
 279     return false;
 280
 281   StopInfoSP stop_info = exe_ctx.GetThreadPtr()->GetStopInfo();
 282   StructuredData::ObjectSP info = stop_info->GetExtendedInfo();
 283   if (!info)
 284     return false;
 285
 286   info->Dump(strm);
 287
 288   return true;
 289 }
 290
 291 SBThreadCollection
 292 SBThread::GetStopReasonExtendedBacktraces(InstrumentationRuntimeType type) {
 293   ThreadCollectionSP threads;
 294   threads.reset(new ThreadCollection());
 295
 296   std::unique_lock<std::recursive_mutex> lock;
 297   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 298
 299   if (!exe_ctx.HasThreadScope())
 300     return threads;
 301
 302   ProcessSP process_sp = exe_ctx.GetProcessSP();
 303
 304   StopInfoSP stop_info = exe_ctx.GetThreadPtr()->GetStopInfo();
 305   StructuredData::ObjectSP info = stop_info->GetExtendedInfo();
 306   if (!info)
 307     return threads;
 308
 309   return process_sp->GetInstrumentationRuntime(type)
 310       ->GetBacktracesFromExtendedStopInfo(info);
 311 }
 312
 313 size_t SBThread::GetStopDescription(char *dst, size_t dst_len) {
 314   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 315
 316   std::unique_lock<std::recursive_mutex> lock;
 317   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 318
 319   if (exe_ctx.HasThreadScope()) {
 320     Process::StopLocker stop_locker;
 321     if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
 322
 323       StopInfoSP stop_info_sp = exe_ctx.GetThreadPtr()->GetStopInfo();
 324       if (stop_info_sp) {
 325         const char *stop_desc = stop_info_sp->GetDescription();
 326         if (stop_desc) {
 327           if (log)
 328             log->Printf(
 329                 "SBThread(%p)::GetStopDescription (dst, dst_len) => \"%s\"",
 330                 static_cast<void *>(exe_ctx.GetThreadPtr()), stop_desc);
 331           if (dst)
 332             return ::snprintf(dst, dst_len, "%s", stop_desc);
 333           else {
 334             // NULL dst passed in, return the length needed to contain the
 335             // description
 336             return ::strlen(stop_desc) + 1; // Include the NULL byte for size
 337           }
 338         } else {
 339           size_t stop_desc_len = 0;
 340           switch (stop_info_sp->GetStopReason()) {
 341           case eStopReasonTrace:
 342           case eStopReasonPlanComplete: {
 343             static char trace_desc[] = "step";
 344             stop_desc = trace_desc;
 345             stop_desc_len =
 346                 sizeof(trace_desc); // Include the NULL byte for size
 347           } break;
 348
 349           case eStopReasonBreakpoint: {
 350             static char bp_desc[] = "breakpoint hit";
 351             stop_desc = bp_desc;
 352             stop_desc_len = sizeof(bp_desc); // Include the NULL byte for size
 353           } break;
 354
 355           case eStopReasonWatchpoint: {
 356             static char wp_desc[] = "watchpoint hit";
 357             stop_desc = wp_desc;
 358             stop_desc_len = sizeof(wp_desc); // Include the NULL byte for size
 359           } break;
 360
 361           case eStopReasonSignal: {
 362             stop_desc =
 363                 exe_ctx.GetProcessPtr()->GetUnixSignals()->GetSignalAsCString(
 364                     stop_info_sp->GetValue());
 365             if (stop_desc == NULL || stop_desc[0] == '\0') {
 366               static char signal_desc[] = "signal";
 367               stop_desc = signal_desc;
 368               stop_desc_len =
 369                   sizeof(signal_desc); // Include the NULL byte for size
 370             }
 371           } break;
 372
 373           case eStopReasonException: {
 374             char exc_desc[] = "exception";
 375             stop_desc = exc_desc;
 376             stop_desc_len = sizeof(exc_desc); // Include the NULL byte for size
 377           } break;
 378
 379           case eStopReasonExec: {
 380             char exc_desc[] = "exec";
 381             stop_desc = exc_desc;
 382             stop_desc_len = sizeof(exc_desc); // Include the NULL byte for size
 383           } break;
 384
 385           case eStopReasonThreadExiting: {
 386             char limbo_desc[] = "thread exiting";
 387             stop_desc = limbo_desc;
 388             stop_desc_len = sizeof(limbo_desc);
 389           } break;
 390           default:
 391             break;
 392           }
 393
 394           if (stop_desc && stop_desc[0]) {
 395             if (log)
 396               log->Printf(
 397                   "SBThread(%p)::GetStopDescription (dst, dst_len) => '%s'",
 398                   static_cast<void *>(exe_ctx.GetThreadPtr()), stop_desc);
 399
 400             if (dst)
 401               return ::snprintf(dst, dst_len, "%s", stop_desc) +
 402                      1; // Include the NULL byte
 403
 404             if (stop_desc_len == 0)
 405               stop_desc_len = ::strlen(stop_desc) + 1; // Include the NULL byte
 406
 407             return stop_desc_len;
 408           }
 409         }
 410       }
 411     } else {
 412       Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 413       if (log)
 414         log->Printf(
 415             "SBThread(%p)::GetStopDescription() => error: process is running",
 416             static_cast<void *>(exe_ctx.GetThreadPtr()));
 417     }
 418   }
 419   if (dst)
 420     *dst = 0;
 421   return 0;
 422 }
 423
 424 SBValue SBThread::GetStopReturnValue() {
 425   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 426   ValueObjectSP return_valobj_sp;
 427   std::unique_lock<std::recursive_mutex> lock;
 428   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 429
 430   if (exe_ctx.HasThreadScope()) {
 431     Process::StopLocker stop_locker;
 432     if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
 433       StopInfoSP stop_info_sp = exe_ctx.GetThreadPtr()->GetStopInfo();
 434       if (stop_info_sp) {
 435         return_valobj_sp = StopInfo::GetReturnValueObject(stop_info_sp);
 436       }
 437     } else {
 438       if (log)
 439         log->Printf(
 440             "SBThread(%p)::GetStopReturnValue() => error: process is running",
 441             static_cast<void *>(exe_ctx.GetThreadPtr()));
 442     }
 443   }
 444
 445   if (log)
 446     log->Printf("SBThread(%p)::GetStopReturnValue () => %s",
 447                 static_cast<void *>(exe_ctx.GetThreadPtr()),
 448                 return_valobj_sp.get() ? return_valobj_sp->GetValueAsCString()
 449                                        : "<no return value>");
 450
 451   return SBValue(return_valobj_sp);
 452 }
 453
 454 void SBThread::SetThread(const ThreadSP &lldb_object_sp) {
 455   m_opaque_sp->SetThreadSP(lldb_object_sp);
 456 }
 457
 458 lldb::tid_t SBThread::GetThreadID() const {
 459   ThreadSP thread_sp(m_opaque_sp->GetThreadSP());
 460   if (thread_sp)
 461     return thread_sp->GetID();
 462   return LLDB_INVALID_THREAD_ID;
 463 }
 464
 465 uint32_t SBThread::GetIndexID() const {
 466   ThreadSP thread_sp(m_opaque_sp->GetThreadSP());
 467   if (thread_sp)
 468     return thread_sp->GetIndexID();
 469   return LLDB_INVALID_INDEX32;
 470 }
 471
 472 const char *SBThread::GetName() const {
 473   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 474   const char *name = NULL;
 475   std::unique_lock<std::recursive_mutex> lock;
 476   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 477
 478   if (exe_ctx.HasThreadScope()) {
 479     Process::StopLocker stop_locker;
 480     if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
 481       name = exe_ctx.GetThreadPtr()->GetName();
 482     } else {
 483       if (log)
 484         log->Printf("SBThread(%p)::GetName() => error: process is running",
 485                     static_cast<void *>(exe_ctx.GetThreadPtr()));
 486     }
 487   }
 488
 489   if (log)
 490     log->Printf("SBThread(%p)::GetName () => %s",
 491                 static_cast<void *>(exe_ctx.GetThreadPtr()),
 492                 name ? name : "NULL");
 493
 494   return name;
 495 }
 496
 497 const char *SBThread::GetQueueName() const {
 498   const char *name = NULL;
 499   std::unique_lock<std::recursive_mutex> lock;
 500   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 501
 502   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 503   if (exe_ctx.HasThreadScope()) {
 504     Process::StopLocker stop_locker;
 505     if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
 506       name = exe_ctx.GetThreadPtr()->GetQueueName();
 507     } else {
 508       if (log)
 509         log->Printf("SBThread(%p)::GetQueueName() => error: process is running",
 510                     static_cast<void *>(exe_ctx.GetThreadPtr()));
 511     }
 512   }
 513
 514   if (log)
 515     log->Printf("SBThread(%p)::GetQueueName () => %s",
 516                 static_cast<void *>(exe_ctx.GetThreadPtr()),
 517                 name ? name : "NULL");
 518
 519   return name;
 520 }
 521
 522 lldb::queue_id_t SBThread::GetQueueID() const {
 523   queue_id_t id = LLDB_INVALID_QUEUE_ID;
 524   std::unique_lock<std::recursive_mutex> lock;
 525   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 526
 527   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 528   if (exe_ctx.HasThreadScope()) {
 529     Process::StopLocker stop_locker;
 530     if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
 531       id = exe_ctx.GetThreadPtr()->GetQueueID();
 532     } else {
 533       if (log)
 534         log->Printf("SBThread(%p)::GetQueueID() => error: process is running",
 535                     static_cast<void *>(exe_ctx.GetThreadPtr()));
 536     }
 537   }
 538
 539   if (log)
 540     log->Printf("SBThread(%p)::GetQueueID () => 0x%" PRIx64,
 541                 static_cast<void *>(exe_ctx.GetThreadPtr()), id);
 542
 543   return id;
 544 }
 545
 546 bool SBThread::GetInfoItemByPathAsString(const char *path, SBStream &strm) {
 547   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 548   bool success = false;
 549   std::unique_lock<std::recursive_mutex> lock;
 550   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 551
 552   if (exe_ctx.HasThreadScope()) {
 553     Process::StopLocker stop_locker;
 554     if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
 555       Thread *thread = exe_ctx.GetThreadPtr();
 556       StructuredData::ObjectSP info_root_sp = thread->GetExtendedInfo();
 557       if (info_root_sp) {
 558         StructuredData::ObjectSP node =
 559             info_root_sp->GetObjectForDotSeparatedPath(path);
 560         if (node) {
 561           if (node->GetType() == eStructuredDataTypeString) {
 562             strm.Printf("%s", node->GetAsString()->GetValue().str().c_str());
 563             success = true;
 564           }
 565           if (node->GetType() == eStructuredDataTypeInteger) {
 566             strm.Printf("0x%" PRIx64, node->GetAsInteger()->GetValue());
 567             success = true;
 568           }
 569           if (node->GetType() == eStructuredDataTypeFloat) {
 570             strm.Printf("0x%f", node->GetAsFloat()->GetValue());
 571             success = true;
 572           }
 573           if (node->GetType() == eStructuredDataTypeBoolean) {
 574             if (node->GetAsBoolean()->GetValue() == true)
 575               strm.Printf("true");
 576             else
 577               strm.Printf("false");
 578             success = true;
 579           }
 580           if (node->GetType() == eStructuredDataTypeNull) {
 581             strm.Printf("null");
 582             success = true;
 583           }
 584         }
 585       }
 586     } else {
 587       if (log)
 588         log->Printf("SBThread(%p)::GetInfoItemByPathAsString() => error: "
 589                     "process is running",
 590                     static_cast<void *>(exe_ctx.GetThreadPtr()));
 591     }
 592   }
 593
 594   if (log)
 595     log->Printf("SBThread(%p)::GetInfoItemByPathAsString (\"%s\") => \"%s\"",
 596                 static_cast<void *>(exe_ctx.GetThreadPtr()), path, strm.GetData());
 597
 598   return success;
 599 }
 600
 601 SBError SBThread::ResumeNewPlan(ExecutionContext &exe_ctx,
 602                                 ThreadPlan *new_plan) {
 603   SBError sb_error;
 604
 605   Process *process = exe_ctx.GetProcessPtr();
 606   if (!process) {
 607     sb_error.SetErrorString("No process in SBThread::ResumeNewPlan");
 608     return sb_error;
 609   }
 610
 611   Thread *thread = exe_ctx.GetThreadPtr();
 612   if (!thread) {
 613     sb_error.SetErrorString("No thread in SBThread::ResumeNewPlan");
 614     return sb_error;
 615   }
 616
 617   // User level plans should be Master Plans so they can be interrupted, other
 618   // plans executed, and
 619   // then a "continue" will resume the plan.
 620   if (new_plan != NULL) {
 621     new_plan->SetIsMasterPlan(true);
 622     new_plan->SetOkayToDiscard(false);
 623   }
 624
 625   // Why do we need to set the current thread by ID here???
 626   process->GetThreadList().SetSelectedThreadByID(thread->GetID());
 627
 628   if (process->GetTarget().GetDebugger().GetAsyncExecution())
 629     sb_error.ref() = process->Resume();
 630   else
 631     sb_error.ref() = process->ResumeSynchronous(NULL);
 632
 633   return sb_error;
 634 }
 635
 636 void SBThread::StepOver(lldb::RunMode stop_other_threads) {
 637   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 638
 639   std::unique_lock<std::recursive_mutex> lock;
 640   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 641
 642   if (log)
 643     log->Printf("SBThread(%p)::StepOver (stop_other_threads='%s')",
 644                 static_cast<void *>(exe_ctx.GetThreadPtr()),
 645                 Thread::RunModeAsCString(stop_other_threads));
 646
 647   if (exe_ctx.HasThreadScope()) {
 648     Thread *thread = exe_ctx.GetThreadPtr();
 649     bool abort_other_plans = false;
 650     StackFrameSP frame_sp(thread->GetStackFrameAtIndex(0));
 651
 652     ThreadPlanSP new_plan_sp;
 653     if (frame_sp) {
 654       if (frame_sp->HasDebugInformation()) {
 655         const LazyBool avoid_no_debug = eLazyBoolCalculate;
 656         SymbolContext sc(frame_sp->GetSymbolContext(eSymbolContextEverything));
 657         new_plan_sp = thread->QueueThreadPlanForStepOverRange(
 658             abort_other_plans, sc.line_entry, sc, stop_other_threads,
 659             avoid_no_debug);
 660       } else {
 661         new_plan_sp = thread->QueueThreadPlanForStepSingleInstruction(
 662             true, abort_other_plans, stop_other_threads);
 663       }
 664     }
 665
 666     // This returns an error, we should use it!
 667     ResumeNewPlan(exe_ctx, new_plan_sp.get());
 668   }
 669 }
 670
 671 void SBThread::StepInto(lldb::RunMode stop_other_threads) {
 672   StepInto(NULL, stop_other_threads);
 673 }
 674
 675 void SBThread::StepInto(const char *target_name,
 676                         lldb::RunMode stop_other_threads) {
 677   SBError error;
 678   StepInto(target_name, LLDB_INVALID_LINE_NUMBER, error, stop_other_threads);
 679 }
 680
 681 void SBThread::StepInto(const char *target_name, uint32_t end_line,
 682                         SBError &error, lldb::RunMode stop_other_threads) {
 683   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 684
 685   std::unique_lock<std::recursive_mutex> lock;
 686   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 687
 688   if (log)
 689     log->Printf(
 690         "SBThread(%p)::StepInto (target_name='%s', stop_other_threads='%s')",
 691         static_cast<void *>(exe_ctx.GetThreadPtr()),
 692         target_name ? target_name : "<NULL>",
 693         Thread::RunModeAsCString(stop_other_threads));
 694
 695   if (exe_ctx.HasThreadScope()) {
 696     bool abort_other_plans = false;
 697
 698     Thread *thread = exe_ctx.GetThreadPtr();
 699     StackFrameSP frame_sp(thread->GetStackFrameAtIndex(0));
 700     ThreadPlanSP new_plan_sp;
 701
 702     if (frame_sp && frame_sp->HasDebugInformation()) {
 703       SymbolContext sc(frame_sp->GetSymbolContext(eSymbolContextEverything));
 704       AddressRange range;
 705       if (end_line == LLDB_INVALID_LINE_NUMBER)
 706         range = sc.line_entry.range;
 707       else {
 708         if (!sc.GetAddressRangeFromHereToEndLine(end_line, range, error.ref()))
 709           return;
 710       }
 711
 712       const LazyBool step_out_avoids_code_without_debug_info =
 713           eLazyBoolCalculate;
 714       const LazyBool step_in_avoids_code_without_debug_info =
 715           eLazyBoolCalculate;
 716       new_plan_sp = thread->QueueThreadPlanForStepInRange(
 717           abort_other_plans, range, sc, target_name, stop_other_threads,
 718           step_in_avoids_code_without_debug_info,
 719           step_out_avoids_code_without_debug_info);
 720     } else {
 721       new_plan_sp = thread->QueueThreadPlanForStepSingleInstruction(
 722           false, abort_other_plans, stop_other_threads);
 723     }
 724
 725     error = ResumeNewPlan(exe_ctx, new_plan_sp.get());
 726   }
 727 }
 728
 729 void SBThread::StepOut() {
 730   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 731
 732   std::unique_lock<std::recursive_mutex> lock;
 733   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 734
 735   if (log)
 736     log->Printf("SBThread(%p)::StepOut ()",
 737                 static_cast<void *>(exe_ctx.GetThreadPtr()));
 738
 739   if (exe_ctx.HasThreadScope()) {
 740     bool abort_other_plans = false;
 741     bool stop_other_threads = false;
 742
 743     Thread *thread = exe_ctx.GetThreadPtr();
 744
 745     const LazyBool avoid_no_debug = eLazyBoolCalculate;
 746     ThreadPlanSP new_plan_sp(thread->QueueThreadPlanForStepOut(
 747         abort_other_plans, NULL, false, stop_other_threads, eVoteYes,
 748         eVoteNoOpinion, 0, avoid_no_debug));
 749
 750     // This returns an error, we should use it!
 751     ResumeNewPlan(exe_ctx, new_plan_sp.get());
 752   }
 753 }
 754
 755 void SBThread::StepOutOfFrame(lldb::SBFrame &sb_frame) {
 756   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 757
 758   std::unique_lock<std::recursive_mutex> lock;
 759   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 760
 761   if (!sb_frame.IsValid()) {
 762     if (log)
 763       log->Printf(
 764           "SBThread(%p)::StepOutOfFrame passed an invalid frame, returning.",
 765           static_cast<void *>(exe_ctx.GetThreadPtr()));
 766     return;
 767   }
 768
 769   StackFrameSP frame_sp(sb_frame.GetFrameSP());
 770   if (log) {
 771     SBStream frame_desc_strm;
 772     sb_frame.GetDescription(frame_desc_strm);
 773     log->Printf("SBThread(%p)::StepOutOfFrame (frame = SBFrame(%p): %s)",
 774                 static_cast<void *>(exe_ctx.GetThreadPtr()),
 775                 static_cast<void *>(frame_sp.get()), frame_desc_strm.GetData());
 776   }
 777
 778   if (exe_ctx.HasThreadScope()) {
 779     bool abort_other_plans = false;
 780     bool stop_other_threads = false;
 781     Thread *thread = exe_ctx.GetThreadPtr();
 782     if (sb_frame.GetThread().GetThreadID() != thread->GetID()) {
 783       log->Printf("SBThread(%p)::StepOutOfFrame passed a frame from another "
 784                   "thread (0x%" PRIx64 " vrs. 0x%" PRIx64 ", returning.",
 785                   static_cast<void *>(exe_ctx.GetThreadPtr()),
 786                   sb_frame.GetThread().GetThreadID(), thread->GetID());
 787     }
 788
 789     ThreadPlanSP new_plan_sp(thread->QueueThreadPlanForStepOut(
 790         abort_other_plans, NULL, false, stop_other_threads, eVoteYes,
 791         eVoteNoOpinion, frame_sp->GetFrameIndex()));
 792
 793     // This returns an error, we should use it!
 794     ResumeNewPlan(exe_ctx, new_plan_sp.get());
 795   }
 796 }
 797
 798 void SBThread::StepInstruction(bool step_over) {
 799   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 800
 801   std::unique_lock<std::recursive_mutex> lock;
 802   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 803
 804   if (log)
 805     log->Printf("SBThread(%p)::StepInstruction (step_over=%i)",
 806                 static_cast<void *>(exe_ctx.GetThreadPtr()), step_over);
 807
 808   if (exe_ctx.HasThreadScope()) {
 809     Thread *thread = exe_ctx.GetThreadPtr();
 810     ThreadPlanSP new_plan_sp(
 811         thread->QueueThreadPlanForStepSingleInstruction(step_over, true, true));
 812
 813     // This returns an error, we should use it!
 814     ResumeNewPlan(exe_ctx, new_plan_sp.get());
 815   }
 816 }
 817
 818 void SBThread::RunToAddress(lldb::addr_t addr) {
 819   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 820
 821   std::unique_lock<std::recursive_mutex> lock;
 822   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 823
 824   if (log)
 825     log->Printf("SBThread(%p)::RunToAddress (addr=0x%" PRIx64 ")",
 826                 static_cast<void *>(exe_ctx.GetThreadPtr()), addr);
 827
 828   if (exe_ctx.HasThreadScope()) {
 829     bool abort_other_plans = false;
 830     bool stop_other_threads = true;
 831
 832     Address target_addr(addr);
 833
 834     Thread *thread = exe_ctx.GetThreadPtr();
 835
 836     ThreadPlanSP new_plan_sp(thread->QueueThreadPlanForRunToAddress(
 837         abort_other_plans, target_addr, stop_other_threads));
 838
 839     // This returns an error, we should use it!
 840     ResumeNewPlan(exe_ctx, new_plan_sp.get());
 841   }
 842 }
 843
 844 SBError SBThread::StepOverUntil(lldb::SBFrame &sb_frame,
 845                                 lldb::SBFileSpec &sb_file_spec, uint32_t line) {
 846   SBError sb_error;
 847   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 848   char path[PATH_MAX];
 849
 850   std::unique_lock<std::recursive_mutex> lock;
 851   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 852
 853   StackFrameSP frame_sp(sb_frame.GetFrameSP());
 854
 855   if (log) {
 856     SBStream frame_desc_strm;
 857     sb_frame.GetDescription(frame_desc_strm);
 858     sb_file_spec->GetPath(path, sizeof(path));
 859     log->Printf("SBThread(%p)::StepOverUntil (frame = SBFrame(%p): %s, "
 860                 "file+line = %s:%u)",
 861                 static_cast<void *>(exe_ctx.GetThreadPtr()),
 862                 static_cast<void *>(frame_sp.get()), frame_desc_strm.GetData(),
 863                 path, line);
 864   }
 865
 866   if (exe_ctx.HasThreadScope()) {
 867     Target *target = exe_ctx.GetTargetPtr();
 868     Thread *thread = exe_ctx.GetThreadPtr();
 869
 870     if (line == 0) {
 871       sb_error.SetErrorString("invalid line argument");
 872       return sb_error;
 873     }
 874
 875     if (!frame_sp) {
 876       frame_sp = thread->GetSelectedFrame();
 877       if (!frame_sp)
 878         frame_sp = thread->GetStackFrameAtIndex(0);
 879     }
 880
 881     SymbolContext frame_sc;
 882     if (!frame_sp) {
 883       sb_error.SetErrorString("no valid frames in thread to step");
 884       return sb_error;
 885     }
 886
 887     // If we have a frame, get its line
 888     frame_sc = frame_sp->GetSymbolContext(
 889         eSymbolContextCompUnit | eSymbolContextFunction |
 890         eSymbolContextLineEntry | eSymbolContextSymbol);
 891
 892     if (frame_sc.comp_unit == NULL) {
 893       sb_error.SetErrorStringWithFormat(
 894           "frame %u doesn't have debug information", frame_sp->GetFrameIndex());
 895       return sb_error;
 896     }
 897
 898     FileSpec step_file_spec;
 899     if (sb_file_spec.IsValid()) {
 900       // The file spec passed in was valid, so use it
 901       step_file_spec = sb_file_spec.ref();
 902     } else {
 903       if (frame_sc.line_entry.IsValid())
 904         step_file_spec = frame_sc.line_entry.file;
 905       else {
 906         sb_error.SetErrorString("invalid file argument or no file for frame");
 907         return sb_error;
 908       }
 909     }
 910
 911     // Grab the current function, then we will make sure the "until" address is
 912     // within the function.  We discard addresses that are out of the current
 913     // function, and then if there are no addresses remaining, give an
 914     // appropriate
 915     // error message.
 916
 917     bool all_in_function = true;
 918     AddressRange fun_range = frame_sc.function->GetAddressRange();
 919
 920     std::vector<addr_t> step_over_until_addrs;
 921     const bool abort_other_plans = false;
 922     const bool stop_other_threads = false;
 923     const bool check_inlines = true;
 924     const bool exact = false;
 925
 926     SymbolContextList sc_list;
 927     const uint32_t num_matches = frame_sc.comp_unit->ResolveSymbolContext(
 928         step_file_spec, line, check_inlines, exact, eSymbolContextLineEntry,
 929         sc_list);
 930     if (num_matches > 0) {
 931       SymbolContext sc;
 932       for (uint32_t i = 0; i < num_matches; ++i) {
 933         if (sc_list.GetContextAtIndex(i, sc)) {
 934           addr_t step_addr =
 935               sc.line_entry.range.GetBaseAddress().GetLoadAddress(target);
 936           if (step_addr != LLDB_INVALID_ADDRESS) {
 937             if (fun_range.ContainsLoadAddress(step_addr, target))
 938               step_over_until_addrs.push_back(step_addr);
 939             else
 940               all_in_function = false;
 941           }
 942         }
 943       }
 944     }
 945
 946     if (step_over_until_addrs.empty()) {
 947       if (all_in_function) {
 948         step_file_spec.GetPath(path, sizeof(path));
 949         sb_error.SetErrorStringWithFormat("No line entries for %s:%u", path,
 950                                           line);
 951       } else
 952         sb_error.SetErrorString("step until target not in current function");
 953     } else {
 954       ThreadPlanSP new_plan_sp(thread->QueueThreadPlanForStepUntil(
 955           abort_other_plans, &step_over_until_addrs[0],
 956           step_over_until_addrs.size(), stop_other_threads,
 957           frame_sp->GetFrameIndex()));
 958
 959       sb_error = ResumeNewPlan(exe_ctx, new_plan_sp.get());
 960     }
 961   } else {
 962     sb_error.SetErrorString("this SBThread object is invalid");
 963   }
 964   return sb_error;
 965 }
 966
 967 SBError SBThread::StepUsingScriptedThreadPlan(const char *script_class_name) {
 968   return StepUsingScriptedThreadPlan(script_class_name, true);
 969 }
 970
 971 SBError SBThread::StepUsingScriptedThreadPlan(const char *script_class_name,
 972                                               bool resume_immediately) {
 973   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 974   SBError sb_error;
 975
 976   std::unique_lock<std::recursive_mutex> lock;
 977   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 978
 979   if (log) {
 980     log->Printf("SBThread(%p)::StepUsingScriptedThreadPlan: class name: %s",
 981                 static_cast<void *>(exe_ctx.GetThreadPtr()), script_class_name);
 982   }
 983
 984   if (!exe_ctx.HasThreadScope()) {
 985     sb_error.SetErrorString("this SBThread object is invalid");
 986     return sb_error;
 987   }
 988
 989   Thread *thread = exe_ctx.GetThreadPtr();
 990   ThreadPlanSP thread_plan_sp =
 991       thread->QueueThreadPlanForStepScripted(false, script_class_name, false);
 992
 993   if (!thread_plan_sp) {
 994     sb_error.SetErrorStringWithFormat(
 995         "Error queueing thread plan for class: %s", script_class_name);
 996     return sb_error;
 997   }
 998
 999   if (!resume_immediately) {
1000     return sb_error;
1001   }
1002
1003   if (thread_plan_sp)
1004     sb_error = ResumeNewPlan(exe_ctx, thread_plan_sp.get());
1005   else {
1006     sb_error.SetErrorStringWithFormat(
1007         "Error resuming thread plan for class: %s.", script_class_name);
1008     if (log)
1009       log->Printf("SBThread(%p)::StepUsingScriptedThreadPlan: Error queuing "
1010                   "thread plan for class: %s",
1011                   static_cast<void *>(exe_ctx.GetThreadPtr()),
1012                   script_class_name);
1013   }
1014
1015   return sb_error;
1016 }
1017
1018 SBError SBThread::JumpToLine(lldb::SBFileSpec &file_spec, uint32_t line) {
1019   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
1020   SBError sb_error;
1021
1022   std::unique_lock<std::recursive_mutex> lock;
1023   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1024
1025   if (log)
1026     log->Printf("SBThread(%p)::JumpToLine (file+line = %s:%u)",
1027                 static_cast<void *>(exe_ctx.GetThreadPtr()),
1028                 file_spec->GetPath().c_str(), line);
1029
1030   if (!exe_ctx.HasThreadScope()) {
1031     sb_error.SetErrorString("this SBThread object is invalid");
1032     return sb_error;
1033   }
1034
1035   Thread *thread = exe_ctx.GetThreadPtr();
1036
1037   Status err = thread->JumpToLine(file_spec.get(), line, true);
1038   sb_error.SetError(err);
1039   return sb_error;
1040 }
1041
1042 SBError SBThread::ReturnFromFrame(SBFrame &frame, SBValue &return_value) {
1043   SBError sb_error;
1044
1045   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
1046
1047   std::unique_lock<std::recursive_mutex> lock;
1048   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1049
1050   if (log)
1051     log->Printf("SBThread(%p)::ReturnFromFrame (frame=%d)",
1052                 static_cast<void *>(exe_ctx.GetThreadPtr()),
1053                 frame.GetFrameID());
1054
1055   if (exe_ctx.HasThreadScope()) {
1056     Thread *thread = exe_ctx.GetThreadPtr();
1057     sb_error.SetError(
1058         thread->ReturnFromFrame(frame.GetFrameSP(), return_value.GetSP()));
1059   }
1060
1061   return sb_error;
1062 }
1063
1064 SBError SBThread::UnwindInnermostExpression() {
1065   SBError sb_error;
1066
1067   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
1068
1069   std::unique_lock<std::recursive_mutex> lock;
1070   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1071
1072   if (log)
1073     log->Printf("SBThread(%p)::UnwindExpressionEvaluation",
1074                 static_cast<void *>(exe_ctx.GetThreadPtr()));
1075
1076   if (exe_ctx.HasThreadScope()) {
1077     Thread *thread = exe_ctx.GetThreadPtr();
1078     sb_error.SetError(thread->UnwindInnermostExpression());
1079     if (sb_error.Success())
1080       thread->SetSelectedFrameByIndex(0, false);
1081   }
1082
1083   return sb_error;
1084 }
1085
1086 bool SBThread::Suspend() {
1087   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
1088   std::unique_lock<std::recursive_mutex> lock;
1089   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1090
1091   bool result = false;
1092   if (exe_ctx.HasThreadScope()) {
1093     Process::StopLocker stop_locker;
1094     if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
1095       exe_ctx.GetThreadPtr()->SetResumeState(eStateSuspended);
1096       result = true;
1097     } else {
1098       if (log)
1099         log->Printf("SBThread(%p)::Suspend() => error: process is running",
1100                     static_cast<void *>(exe_ctx.GetThreadPtr()));
1101     }
1102   }
1103   if (log)
1104     log->Printf("SBThread(%p)::Suspend() => %i",
1105                 static_cast<void *>(exe_ctx.GetThreadPtr()), result);
1106   return result;
1107 }
1108
1109 bool SBThread::Resume() {
1110   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
1111   std::unique_lock<std::recursive_mutex> lock;
1112   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1113
1114   bool result = false;
1115   if (exe_ctx.HasThreadScope()) {
1116     Process::StopLocker stop_locker;
1117     if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
1118       const bool override_suspend = true;
1119       exe_ctx.GetThreadPtr()->SetResumeState(eStateRunning, override_suspend);
1120       result = true;
1121     } else {
1122       if (log)
1123         log->Printf("SBThread(%p)::Resume() => error: process is running",
1124                     static_cast<void *>(exe_ctx.GetThreadPtr()));
1125     }
1126   }
1127   if (log)
1128     log->Printf("SBThread(%p)::Resume() => %i",
1129                 static_cast<void *>(exe_ctx.GetThreadPtr()), result);
1130   return result;
1131 }
1132
1133 bool SBThread::IsSuspended() {
1134   std::unique_lock<std::recursive_mutex> lock;
1135   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1136
1137   if (exe_ctx.HasThreadScope())
1138     return exe_ctx.GetThreadPtr()->GetResumeState() == eStateSuspended;
1139   return false;
1140 }
1141
1142 bool SBThread::IsStopped() {
1143   std::unique_lock<std::recursive_mutex> lock;
1144   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1145
1146   if (exe_ctx.HasThreadScope())
1147     return StateIsStoppedState(exe_ctx.GetThreadPtr()->GetState(), true);
1148   return false;
1149 }
1150
1151 SBProcess SBThread::GetProcess() {
1152   SBProcess sb_process;
1153   std::unique_lock<std::recursive_mutex> lock;
1154   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1155
1156   if (exe_ctx.HasThreadScope()) {
1157     // Have to go up to the target so we can get a shared pointer to our
1158     // process...
1159     sb_process.SetSP(exe_ctx.GetProcessSP());
1160   }
1161
1162   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
1163   if (log) {
1164     SBStream frame_desc_strm;
1165     sb_process.GetDescription(frame_desc_strm);
1166     log->Printf("SBThread(%p)::GetProcess () => SBProcess(%p): %s",
1167                 static_cast<void *>(exe_ctx.GetThreadPtr()),
1168                 static_cast<void *>(sb_process.GetSP().get()),
1169                 frame_desc_strm.GetData());
1170   }
1171
1172   return sb_process;
1173 }
1174
1175 uint32_t SBThread::GetNumFrames() {
1176   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
1177
1178   uint32_t num_frames = 0;
1179   std::unique_lock<std::recursive_mutex> lock;
1180   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1181
1182   if (exe_ctx.HasThreadScope()) {
1183     Process::StopLocker stop_locker;
1184     if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
1185       num_frames = exe_ctx.GetThreadPtr()->GetStackFrameCount();
1186     } else {
1187       if (log)
1188         log->Printf("SBThread(%p)::GetNumFrames() => error: process is running",
1189                     static_cast<void *>(exe_ctx.GetThreadPtr()));
1190     }
1191   }
1192
1193   if (log)
1194     log->Printf("SBThread(%p)::GetNumFrames () => %u",
1195                 static_cast<void *>(exe_ctx.GetThreadPtr()), num_frames);
1196
1197   return num_frames;
1198 }
1199
1200 SBFrame SBThread::GetFrameAtIndex(uint32_t idx) {
1201   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
1202
1203   SBFrame sb_frame;
1204   StackFrameSP frame_sp;
1205   std::unique_lock<std::recursive_mutex> lock;
1206   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1207
1208   if (exe_ctx.HasThreadScope()) {
1209     Process::StopLocker stop_locker;
1210     if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
1211       frame_sp = exe_ctx.GetThreadPtr()->GetStackFrameAtIndex(idx);
1212       sb_frame.SetFrameSP(frame_sp);
1213     } else {
1214       if (log)
1215         log->Printf(
1216             "SBThread(%p)::GetFrameAtIndex() => error: process is running",
1217             static_cast<void *>(exe_ctx.GetThreadPtr()));
1218     }
1219   }
1220
1221   if (log) {
1222     SBStream frame_desc_strm;
1223     sb_frame.GetDescription(frame_desc_strm);
1224     log->Printf("SBThread(%p)::GetFrameAtIndex (idx=%d) => SBFrame(%p): %s",
1225                 static_cast<void *>(exe_ctx.GetThreadPtr()), idx,
1226                 static_cast<void *>(frame_sp.get()), frame_desc_strm.GetData());
1227   }
1228
1229   return sb_frame;
1230 }
1231
1232 lldb::SBFrame SBThread::GetSelectedFrame() {
1233   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
1234
1235   SBFrame sb_frame;
1236   StackFrameSP frame_sp;
1237   std::unique_lock<std::recursive_mutex> lock;
1238   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1239
1240   if (exe_ctx.HasThreadScope()) {
1241     Process::StopLocker stop_locker;
1242     if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
1243       frame_sp = exe_ctx.GetThreadPtr()->GetSelectedFrame();
1244       sb_frame.SetFrameSP(frame_sp);
1245     } else {
1246       if (log)
1247         log->Printf(
1248             "SBThread(%p)::GetSelectedFrame() => error: process is running",
1249             static_cast<void *>(exe_ctx.GetThreadPtr()));
1250     }
1251   }
1252
1253   if (log) {
1254     SBStream frame_desc_strm;
1255     sb_frame.GetDescription(frame_desc_strm);
1256     log->Printf("SBThread(%p)::GetSelectedFrame () => SBFrame(%p): %s",
1257                 static_cast<void *>(exe_ctx.GetThreadPtr()),
1258                 static_cast<void *>(frame_sp.get()), frame_desc_strm.GetData());
1259   }
1260
1261   return sb_frame;
1262 }
1263
1264 lldb::SBFrame SBThread::SetSelectedFrame(uint32_t idx) {
1265   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
1266
1267   SBFrame sb_frame;
1268   StackFrameSP frame_sp;
1269   std::unique_lock<std::recursive_mutex> lock;
1270   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1271
1272   if (exe_ctx.HasThreadScope()) {
1273     Process::StopLocker stop_locker;
1274     if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
1275       Thread *thread = exe_ctx.GetThreadPtr();
1276       frame_sp = thread->GetStackFrameAtIndex(idx);
1277       if (frame_sp) {
1278         thread->SetSelectedFrame(frame_sp.get());
1279         sb_frame.SetFrameSP(frame_sp);
1280       }
1281     } else {
1282       if (log)
1283         log->Printf(
1284             "SBThread(%p)::SetSelectedFrame() => error: process is running",
1285             static_cast<void *>(exe_ctx.GetThreadPtr()));
1286     }
1287   }
1288
1289   if (log) {
1290     SBStream frame_desc_strm;
1291     sb_frame.GetDescription(frame_desc_strm);
1292     log->Printf("SBThread(%p)::SetSelectedFrame (idx=%u) => SBFrame(%p): %s",
1293                 static_cast<void *>(exe_ctx.GetThreadPtr()), idx,
1294                 static_cast<void *>(frame_sp.get()), frame_desc_strm.GetData());
1295   }
1296   return sb_frame;
1297 }
1298
1299 bool SBThread::EventIsThreadEvent(const SBEvent &event) {
1300   return Thread::ThreadEventData::GetEventDataFromEvent(event.get()) != NULL;
1301 }
1302
1303 SBFrame SBThread::GetStackFrameFromEvent(const SBEvent &event) {
1304   return Thread::ThreadEventData::GetStackFrameFromEvent(event.get());
1305 }
1306
1307 SBThread SBThread::GetThreadFromEvent(const SBEvent &event) {
1308   return Thread::ThreadEventData::GetThreadFromEvent(event.get());
1309 }
1310
1311 bool SBThread::operator==(const SBThread &rhs) const {
1312   return m_opaque_sp->GetThreadSP().get() ==
1313          rhs.m_opaque_sp->GetThreadSP().get();
1314 }
1315
1316 bool SBThread::operator!=(const SBThread &rhs) const {
1317   return m_opaque_sp->GetThreadSP().get() !=
1318          rhs.m_opaque_sp->GetThreadSP().get();
1319 }
1320
1321 bool SBThread::GetStatus(SBStream &status) const {
1322   Stream &strm = status.ref();
1323
1324   std::unique_lock<std::recursive_mutex> lock;
1325   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1326
1327   if (exe_ctx.HasThreadScope()) {
1328     exe_ctx.GetThreadPtr()->GetStatus(strm, 0, 1, 1, true);
1329   } else
1330     strm.PutCString("No status");
1331
1332   return true;
1333 }
1334
1335 bool SBThread::GetDescription(SBStream &description) const {
1336     return GetDescription(description, false);
1337 }
1338
1339 bool SBThread::GetDescription(SBStream &description, bool stop_format) const {
1340   Stream &strm = description.ref();
1341
1342   std::unique_lock<std::recursive_mutex> lock;
1343   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1344
1345   if (exe_ctx.HasThreadScope()) {
1346     exe_ctx.GetThreadPtr()->DumpUsingSettingsFormat(strm,
1347                                                     LLDB_INVALID_THREAD_ID,
1348                                                     stop_format);
1349     // strm.Printf("SBThread: tid = 0x%4.4" PRIx64,
1350     // exe_ctx.GetThreadPtr()->GetID());
1351   } else
1352     strm.PutCString("No value");
1353
1354   return true;
1355 }
1356
1357 SBThread SBThread::GetExtendedBacktraceThread(const char *type) {
1358   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
1359   std::unique_lock<std::recursive_mutex> lock;
1360   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1361   SBThread sb_origin_thread;
1362
1363   if (exe_ctx.HasThreadScope()) {
1364     Process::StopLocker stop_locker;
1365     if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
1366       ThreadSP real_thread(exe_ctx.GetThreadSP());
1367       if (real_thread) {
1368         ConstString type_const(type);
1369         Process *process = exe_ctx.GetProcessPtr();
1370         if (process) {
1371           SystemRuntime *runtime = process->GetSystemRuntime();
1372           if (runtime) {
1373             ThreadSP new_thread_sp(
1374                 runtime->GetExtendedBacktraceThread(real_thread, type_const));
1375             if (new_thread_sp) {
1376               // Save this in the Process' ExtendedThreadList so a strong
1377               // pointer retains the
1378               // object.
1379               process->GetExtendedThreadList().AddThread(new_thread_sp);
1380               sb_origin_thread.SetThread(new_thread_sp);
1381               if (log) {
1382                 const char *queue_name = new_thread_sp->GetQueueName();
1383                 if (queue_name == NULL)
1384                   queue_name = "";
1385                 log->Printf("SBThread(%p)::GetExtendedBacktraceThread() => new "
1386                             "extended Thread "
1387                             "created (%p) with queue_id 0x%" PRIx64
1388                             " queue name '%s'",
1389                             static_cast<void *>(exe_ctx.GetThreadPtr()),
1390                             static_cast<void *>(new_thread_sp.get()),
1391                             new_thread_sp->GetQueueID(), queue_name);
1392               }
1393             }
1394           }
1395         }
1396       }
1397     } else {
1398       if (log)
1399         log->Printf("SBThread(%p)::GetExtendedBacktraceThread() => error: "
1400                     "process is running",
1401                     static_cast<void *>(exe_ctx.GetThreadPtr()));
1402     }
1403   }
1404
1405   if (log && sb_origin_thread.IsValid() == false)
1406     log->Printf("SBThread(%p)::GetExtendedBacktraceThread() is not returning a "
1407                 "Valid thread",
1408                 static_cast<void *>(exe_ctx.GetThreadPtr()));
1409   return sb_origin_thread;
1410 }
1411
1412 uint32_t SBThread::GetExtendedBacktraceOriginatingIndexID() {
1413   ThreadSP thread_sp(m_opaque_sp->GetThreadSP());
1414   if (thread_sp)
1415     return thread_sp->GetExtendedBacktraceOriginatingIndexID();
1416   return LLDB_INVALID_INDEX32;
1417 }
1418
1419 bool SBThread::SafeToCallFunctions() {
1420   ThreadSP thread_sp(m_opaque_sp->GetThreadSP());
1421   if (thread_sp)
1422     return thread_sp->SafeToCallFunctions();
1423   return true;
1424 }
1425
1426 lldb_private::Thread *SBThread::operator->() {
1427   ThreadSP thread_sp(m_opaque_sp->GetThreadSP());
1428   if (thread_sp)
1429     return thread_sp.get();
1430   else
1431     return NULL;
1432 }
1433
1434 lldb_private::Thread *SBThread::get() {
1435   ThreadSP thread_sp(m_opaque_sp->GetThreadSP());
1436   if (thread_sp)
1437     return thread_sp.get();
1438   else
1439     return NULL;
1440 }