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 then a "continue" will resume the plan.
 619   if (new_plan != NULL) {
 620     new_plan->SetIsMasterPlan(true);
 621     new_plan->SetOkayToDiscard(false);
 622   }
 623
 624   // Why do we need to set the current thread by ID here???
 625   process->GetThreadList().SetSelectedThreadByID(thread->GetID());
 626
 627   if (process->GetTarget().GetDebugger().GetAsyncExecution())
 628     sb_error.ref() = process->Resume();
 629   else
 630     sb_error.ref() = process->ResumeSynchronous(NULL);
 631
 632   return sb_error;
 633 }
 634
 635 void SBThread::StepOver(lldb::RunMode stop_other_threads) {
 636   SBError error; // Ignored
 637   StepOver(stop_other_threads, error);
 638 }
 639
 640 void SBThread::StepOver(lldb::RunMode stop_other_threads, SBError &error) {
 641   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 642
 643   std::unique_lock<std::recursive_mutex> lock;
 644   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 645
 646   if (log)
 647     log->Printf("SBThread(%p)::StepOver (stop_other_threads='%s')",
 648                 static_cast<void *>(exe_ctx.GetThreadPtr()),
 649                 Thread::RunModeAsCString(stop_other_threads));
 650
 651   if (!exe_ctx.HasThreadScope()) {
 652     error.SetErrorString("this SBThread object is invalid");
 653     return;
 654   }
 655
 656   Thread *thread = exe_ctx.GetThreadPtr();
 657   bool abort_other_plans = false;
 658   StackFrameSP frame_sp(thread->GetStackFrameAtIndex(0));
 659
 660   ThreadPlanSP new_plan_sp;
 661   if (frame_sp) {
 662     if (frame_sp->HasDebugInformation()) {
 663       const LazyBool avoid_no_debug = eLazyBoolCalculate;
 664       SymbolContext sc(frame_sp->GetSymbolContext(eSymbolContextEverything));
 665       new_plan_sp = thread->QueueThreadPlanForStepOverRange(
 666           abort_other_plans, sc.line_entry, sc, stop_other_threads,
 667           avoid_no_debug);
 668     } else {
 669       new_plan_sp = thread->QueueThreadPlanForStepSingleInstruction(
 670           true, abort_other_plans, stop_other_threads);
 671     }
 672   }
 673   error = ResumeNewPlan(exe_ctx, new_plan_sp.get());
 674 }
 675
 676 void SBThread::StepInto(lldb::RunMode stop_other_threads) {
 677   StepInto(NULL, stop_other_threads);
 678 }
 679
 680 void SBThread::StepInto(const char *target_name,
 681                         lldb::RunMode stop_other_threads) {
 682   SBError error; // Ignored
 683   StepInto(target_name, LLDB_INVALID_LINE_NUMBER, error, stop_other_threads);
 684 }
 685
 686 void SBThread::StepInto(const char *target_name, uint32_t end_line,
 687                         SBError &error, lldb::RunMode stop_other_threads) {
 688   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 689
 690   std::unique_lock<std::recursive_mutex> lock;
 691   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 692
 693   if (log)
 694     log->Printf(
 695         "SBThread(%p)::StepInto (target_name='%s', stop_other_threads='%s')",
 696         static_cast<void *>(exe_ctx.GetThreadPtr()),
 697         target_name ? target_name : "<NULL>",
 698         Thread::RunModeAsCString(stop_other_threads));
 699
 700   if (!exe_ctx.HasThreadScope()) {
 701     error.SetErrorString("this SBThread object is invalid");
 702     return;
 703   }
 704
 705   bool abort_other_plans = false;
 706
 707   Thread *thread = exe_ctx.GetThreadPtr();
 708   StackFrameSP frame_sp(thread->GetStackFrameAtIndex(0));
 709   ThreadPlanSP new_plan_sp;
 710
 711   if (frame_sp && frame_sp->HasDebugInformation()) {
 712     SymbolContext sc(frame_sp->GetSymbolContext(eSymbolContextEverything));
 713     AddressRange range;
 714     if (end_line == LLDB_INVALID_LINE_NUMBER)
 715       range = sc.line_entry.range;
 716     else {
 717       if (!sc.GetAddressRangeFromHereToEndLine(end_line, range, error.ref()))
 718         return;
 719     }
 720
 721     const LazyBool step_out_avoids_code_without_debug_info =
 722         eLazyBoolCalculate;
 723     const LazyBool step_in_avoids_code_without_debug_info =
 724         eLazyBoolCalculate;
 725     new_plan_sp = thread->QueueThreadPlanForStepInRange(
 726         abort_other_plans, range, sc, target_name, stop_other_threads,
 727         step_in_avoids_code_without_debug_info,
 728         step_out_avoids_code_without_debug_info);
 729   } else {
 730     new_plan_sp = thread->QueueThreadPlanForStepSingleInstruction(
 731         false, abort_other_plans, stop_other_threads);
 732   }
 733   error = ResumeNewPlan(exe_ctx, new_plan_sp.get());
 734 }
 735
 736 void SBThread::StepOut() {
 737   SBError error; // Ignored
 738   StepOut(error);
 739 }
 740
 741 void SBThread::StepOut(SBError &error) {
 742   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 743
 744   std::unique_lock<std::recursive_mutex> lock;
 745   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 746
 747   if (log)
 748     log->Printf("SBThread(%p)::StepOut ()",
 749                 static_cast<void *>(exe_ctx.GetThreadPtr()));
 750
 751   if (!exe_ctx.HasThreadScope()) {
 752     error.SetErrorString("this SBThread object is invalid");
 753     return;
 754   }
 755
 756   bool abort_other_plans = false;
 757   bool stop_other_threads = false;
 758
 759   Thread *thread = exe_ctx.GetThreadPtr();
 760
 761   const LazyBool avoid_no_debug = eLazyBoolCalculate;
 762   ThreadPlanSP new_plan_sp(thread->QueueThreadPlanForStepOut(
 763       abort_other_plans, NULL, false, stop_other_threads, eVoteYes,
 764       eVoteNoOpinion, 0, avoid_no_debug));
 765
 766   error = ResumeNewPlan(exe_ctx, new_plan_sp.get());
 767 }
 768
 769 void SBThread::StepOutOfFrame(SBFrame &sb_frame) {
 770   SBError error; // Ignored
 771   StepOutOfFrame(sb_frame, error);
 772 }
 773
 774 void SBThread::StepOutOfFrame(SBFrame &sb_frame, SBError &error) {
 775   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 776
 777   std::unique_lock<std::recursive_mutex> lock;
 778   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 779
 780   if (!sb_frame.IsValid()) {
 781     if (log)
 782       log->Printf(
 783           "SBThread(%p)::StepOutOfFrame passed an invalid frame, returning.",
 784           static_cast<void *>(exe_ctx.GetThreadPtr()));
 785     error.SetErrorString("passed invalid SBFrame object");
 786     return;
 787   }
 788
 789   StackFrameSP frame_sp(sb_frame.GetFrameSP());
 790   if (log) {
 791     SBStream frame_desc_strm;
 792     sb_frame.GetDescription(frame_desc_strm);
 793     log->Printf("SBThread(%p)::StepOutOfFrame (frame = SBFrame(%p): %s)",
 794                 static_cast<void *>(exe_ctx.GetThreadPtr()),
 795                 static_cast<void *>(frame_sp.get()), frame_desc_strm.GetData());
 796   }
 797
 798   if (!exe_ctx.HasThreadScope()) {
 799     error.SetErrorString("this SBThread object is invalid");
 800     return;
 801   }
 802
 803   bool abort_other_plans = false;
 804   bool stop_other_threads = false;
 805   Thread *thread = exe_ctx.GetThreadPtr();
 806   if (sb_frame.GetThread().GetThreadID() != thread->GetID()) {
 807     log->Printf("SBThread(%p)::StepOutOfFrame passed a frame from another "
 808                 "thread (0x%" PRIx64 " vrs. 0x%" PRIx64 ", returning.",
 809                 static_cast<void *>(exe_ctx.GetThreadPtr()),
 810                 sb_frame.GetThread().GetThreadID(), thread->GetID());
 811     error.SetErrorString("passed a frame from another thread");
 812     return;
 813   }
 814
 815   ThreadPlanSP new_plan_sp(thread->QueueThreadPlanForStepOut(
 816       abort_other_plans, NULL, false, stop_other_threads, eVoteYes,
 817       eVoteNoOpinion, frame_sp->GetFrameIndex()));
 818
 819   error = ResumeNewPlan(exe_ctx, new_plan_sp.get());
 820 }
 821
 822 void SBThread::StepInstruction(bool step_over) {
 823   SBError error; // Ignored
 824   StepInstruction(step_over, error);
 825 }
 826
 827 void SBThread::StepInstruction(bool step_over, SBError &error) {
 828   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 829
 830   std::unique_lock<std::recursive_mutex> lock;
 831   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 832
 833   if (log)
 834     log->Printf("SBThread(%p)::StepInstruction (step_over=%i)",
 835                 static_cast<void *>(exe_ctx.GetThreadPtr()), step_over);
 836
 837   if (!exe_ctx.HasThreadScope()) {
 838     error.SetErrorString("this SBThread object is invalid");
 839     return;
 840   }
 841
 842   Thread *thread = exe_ctx.GetThreadPtr();
 843   ThreadPlanSP new_plan_sp(
 844       thread->QueueThreadPlanForStepSingleInstruction(step_over, true, true));
 845
 846   error = ResumeNewPlan(exe_ctx, new_plan_sp.get());
 847 }
 848
 849 void SBThread::RunToAddress(lldb::addr_t addr) {
 850   SBError error; // Ignored
 851   RunToAddress(addr, error);
 852 }
 853
 854 void SBThread::RunToAddress(lldb::addr_t addr, SBError &error) {
 855   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 856
 857   std::unique_lock<std::recursive_mutex> lock;
 858   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 859
 860   if (log)
 861     log->Printf("SBThread(%p)::RunToAddress (addr=0x%" PRIx64 ")",
 862                 static_cast<void *>(exe_ctx.GetThreadPtr()), addr);
 863
 864   if (!exe_ctx.HasThreadScope()) {
 865     error.SetErrorString("this SBThread object is invalid");
 866     return;
 867   }
 868
 869   bool abort_other_plans = false;
 870   bool stop_other_threads = true;
 871
 872   Address target_addr(addr);
 873
 874   Thread *thread = exe_ctx.GetThreadPtr();
 875
 876   ThreadPlanSP new_plan_sp(thread->QueueThreadPlanForRunToAddress(
 877       abort_other_plans, target_addr, stop_other_threads));
 878
 879   error = ResumeNewPlan(exe_ctx, new_plan_sp.get());
 880 }
 881
 882 SBError SBThread::StepOverUntil(lldb::SBFrame &sb_frame,
 883                                 lldb::SBFileSpec &sb_file_spec, uint32_t line) {
 884   SBError sb_error;
 885   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
 886   char path[PATH_MAX];
 887
 888   std::unique_lock<std::recursive_mutex> lock;
 889   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
 890
 891   StackFrameSP frame_sp(sb_frame.GetFrameSP());
 892
 893   if (log) {
 894     SBStream frame_desc_strm;
 895     sb_frame.GetDescription(frame_desc_strm);
 896     sb_file_spec->GetPath(path, sizeof(path));
 897     log->Printf("SBThread(%p)::StepOverUntil (frame = SBFrame(%p): %s, "
 898                 "file+line = %s:%u)",
 899                 static_cast<void *>(exe_ctx.GetThreadPtr()),
 900                 static_cast<void *>(frame_sp.get()), frame_desc_strm.GetData(),
 901                 path, line);
 902   }
 903
 904   if (exe_ctx.HasThreadScope()) {
 905     Target *target = exe_ctx.GetTargetPtr();
 906     Thread *thread = exe_ctx.GetThreadPtr();
 907
 908     if (line == 0) {
 909       sb_error.SetErrorString("invalid line argument");
 910       return sb_error;
 911     }
 912
 913     if (!frame_sp) {
 914       frame_sp = thread->GetSelectedFrame();
 915       if (!frame_sp)
 916         frame_sp = thread->GetStackFrameAtIndex(0);
 917     }
 918
 919     SymbolContext frame_sc;
 920     if (!frame_sp) {
 921       sb_error.SetErrorString("no valid frames in thread to step");
 922       return sb_error;
 923     }
 924
 925     // If we have a frame, get its line
 926     frame_sc = frame_sp->GetSymbolContext(
 927         eSymbolContextCompUnit | eSymbolContextFunction |
 928         eSymbolContextLineEntry | eSymbolContextSymbol);
 929
 930     if (frame_sc.comp_unit == NULL) {
 931       sb_error.SetErrorStringWithFormat(
 932           "frame %u doesn't have debug information", frame_sp->GetFrameIndex());
 933       return sb_error;
 934     }
 935
 936     FileSpec step_file_spec;
 937     if (sb_file_spec.IsValid()) {
 938       // The file spec passed in was valid, so use it
 939       step_file_spec = sb_file_spec.ref();
 940     } else {
 941       if (frame_sc.line_entry.IsValid())
 942         step_file_spec = frame_sc.line_entry.file;
 943       else {
 944         sb_error.SetErrorString("invalid file argument or no file for frame");
 945         return sb_error;
 946       }
 947     }
 948
 949     // Grab the current function, then we will make sure the "until" address is
 950     // within the function.  We discard addresses that are out of the current
 951     // function, and then if there are no addresses remaining, give an
 952     // appropriate error message.
 953
 954     bool all_in_function = true;
 955     AddressRange fun_range = frame_sc.function->GetAddressRange();
 956
 957     std::vector<addr_t> step_over_until_addrs;
 958     const bool abort_other_plans = false;
 959     const bool stop_other_threads = false;
 960     const bool check_inlines = true;
 961     const bool exact = false;
 962
 963     SymbolContextList sc_list;
 964     const uint32_t num_matches = frame_sc.comp_unit->ResolveSymbolContext(
 965         step_file_spec, line, check_inlines, exact, eSymbolContextLineEntry,
 966         sc_list);
 967     if (num_matches > 0) {
 968       SymbolContext sc;
 969       for (uint32_t i = 0; i < num_matches; ++i) {
 970         if (sc_list.GetContextAtIndex(i, sc)) {
 971           addr_t step_addr =
 972               sc.line_entry.range.GetBaseAddress().GetLoadAddress(target);
 973           if (step_addr != LLDB_INVALID_ADDRESS) {
 974             if (fun_range.ContainsLoadAddress(step_addr, target))
 975               step_over_until_addrs.push_back(step_addr);
 976             else
 977               all_in_function = false;
 978           }
 979         }
 980       }
 981     }
 982
 983     if (step_over_until_addrs.empty()) {
 984       if (all_in_function) {
 985         step_file_spec.GetPath(path, sizeof(path));
 986         sb_error.SetErrorStringWithFormat("No line entries for %s:%u", path,
 987                                           line);
 988       } else
 989         sb_error.SetErrorString("step until target not in current function");
 990     } else {
 991       ThreadPlanSP new_plan_sp(thread->QueueThreadPlanForStepUntil(
 992           abort_other_plans, &step_over_until_addrs[0],
 993           step_over_until_addrs.size(), stop_other_threads,
 994           frame_sp->GetFrameIndex()));
 995
 996       sb_error = ResumeNewPlan(exe_ctx, new_plan_sp.get());
 997     }
 998   } else {
 999     sb_error.SetErrorString("this SBThread object is invalid");
1000   }
1001   return sb_error;
1002 }
1003
1004 SBError SBThread::StepUsingScriptedThreadPlan(const char *script_class_name) {
1005   return StepUsingScriptedThreadPlan(script_class_name, true);
1006 }
1007
1008 SBError SBThread::StepUsingScriptedThreadPlan(const char *script_class_name,
1009                                               bool resume_immediately) {
1010   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
1011   SBError sb_error;
1012
1013   std::unique_lock<std::recursive_mutex> lock;
1014   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1015
1016   if (log) {
1017     log->Printf("SBThread(%p)::StepUsingScriptedThreadPlan: class name: %s",
1018                 static_cast<void *>(exe_ctx.GetThreadPtr()), script_class_name);
1019   }
1020
1021   if (!exe_ctx.HasThreadScope()) {
1022     sb_error.SetErrorString("this SBThread object is invalid");
1023     return sb_error;
1024   }
1025
1026   Thread *thread = exe_ctx.GetThreadPtr();
1027   ThreadPlanSP thread_plan_sp =
1028       thread->QueueThreadPlanForStepScripted(false, script_class_name, false);
1029
1030   if (!thread_plan_sp) {
1031     sb_error.SetErrorStringWithFormat(
1032         "Error queueing thread plan for class: %s", script_class_name);
1033     return sb_error;
1034   }
1035
1036   if (!resume_immediately) {
1037     return sb_error;
1038   }
1039
1040   if (thread_plan_sp)
1041     sb_error = ResumeNewPlan(exe_ctx, thread_plan_sp.get());
1042   else {
1043     sb_error.SetErrorStringWithFormat(
1044         "Error resuming thread plan for class: %s.", script_class_name);
1045     if (log)
1046       log->Printf("SBThread(%p)::StepUsingScriptedThreadPlan: Error queuing "
1047                   "thread plan for class: %s",
1048                   static_cast<void *>(exe_ctx.GetThreadPtr()),
1049                   script_class_name);
1050   }
1051
1052   return sb_error;
1053 }
1054
1055 SBError SBThread::JumpToLine(lldb::SBFileSpec &file_spec, uint32_t line) {
1056   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
1057   SBError sb_error;
1058
1059   std::unique_lock<std::recursive_mutex> lock;
1060   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1061
1062   if (log)
1063     log->Printf("SBThread(%p)::JumpToLine (file+line = %s:%u)",
1064                 static_cast<void *>(exe_ctx.GetThreadPtr()),
1065                 file_spec->GetPath().c_str(), line);
1066
1067   if (!exe_ctx.HasThreadScope()) {
1068     sb_error.SetErrorString("this SBThread object is invalid");
1069     return sb_error;
1070   }
1071
1072   Thread *thread = exe_ctx.GetThreadPtr();
1073
1074   Status err = thread->JumpToLine(file_spec.get(), line, true);
1075   sb_error.SetError(err);
1076   return sb_error;
1077 }
1078
1079 SBError SBThread::ReturnFromFrame(SBFrame &frame, SBValue &return_value) {
1080   SBError sb_error;
1081
1082   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
1083
1084   std::unique_lock<std::recursive_mutex> lock;
1085   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1086
1087   if (log)
1088     log->Printf("SBThread(%p)::ReturnFromFrame (frame=%d)",
1089                 static_cast<void *>(exe_ctx.GetThreadPtr()),
1090                 frame.GetFrameID());
1091
1092   if (exe_ctx.HasThreadScope()) {
1093     Thread *thread = exe_ctx.GetThreadPtr();
1094     sb_error.SetError(
1095         thread->ReturnFromFrame(frame.GetFrameSP(), return_value.GetSP()));
1096   }
1097
1098   return sb_error;
1099 }
1100
1101 SBError SBThread::UnwindInnermostExpression() {
1102   SBError sb_error;
1103
1104   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
1105
1106   std::unique_lock<std::recursive_mutex> lock;
1107   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1108
1109   if (log)
1110     log->Printf("SBThread(%p)::UnwindExpressionEvaluation",
1111                 static_cast<void *>(exe_ctx.GetThreadPtr()));
1112
1113   if (exe_ctx.HasThreadScope()) {
1114     Thread *thread = exe_ctx.GetThreadPtr();
1115     sb_error.SetError(thread->UnwindInnermostExpression());
1116     if (sb_error.Success())
1117       thread->SetSelectedFrameByIndex(0, false);
1118   }
1119
1120   return sb_error;
1121 }
1122
1123 bool SBThread::Suspend() {
1124   SBError error; // Ignored
1125   return Suspend(error);
1126 }
1127
1128 bool SBThread::Suspend(SBError &error) {
1129   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
1130   std::unique_lock<std::recursive_mutex> lock;
1131   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1132
1133   bool result = false;
1134   if (exe_ctx.HasThreadScope()) {
1135     Process::StopLocker stop_locker;
1136     if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
1137       exe_ctx.GetThreadPtr()->SetResumeState(eStateSuspended);
1138       result = true;
1139     } else {
1140       error.SetErrorString("process is running");
1141       if (log)
1142         log->Printf("SBThread(%p)::Suspend() => error: process is running",
1143                     static_cast<void *>(exe_ctx.GetThreadPtr()));
1144     }
1145   } else
1146     error.SetErrorString("this SBThread object is invalid");
1147   if (log)
1148     log->Printf("SBThread(%p)::Suspend() => %i",
1149                 static_cast<void *>(exe_ctx.GetThreadPtr()), result);
1150   return result;
1151 }
1152
1153 bool SBThread::Resume() {
1154   SBError error; // Ignored
1155   return Resume(error);
1156 }
1157
1158 bool SBThread::Resume(SBError &error) {
1159   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
1160   std::unique_lock<std::recursive_mutex> lock;
1161   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1162
1163   bool result = false;
1164   if (exe_ctx.HasThreadScope()) {
1165     Process::StopLocker stop_locker;
1166     if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
1167       const bool override_suspend = true;
1168       exe_ctx.GetThreadPtr()->SetResumeState(eStateRunning, override_suspend);
1169       result = true;
1170     } else {
1171       error.SetErrorString("process is running");
1172       if (log)
1173         log->Printf("SBThread(%p)::Resume() => error: process is running",
1174                     static_cast<void *>(exe_ctx.GetThreadPtr()));
1175     }
1176   } else
1177     error.SetErrorString("this SBThread object is invalid");
1178   if (log)
1179     log->Printf("SBThread(%p)::Resume() => %i",
1180                 static_cast<void *>(exe_ctx.GetThreadPtr()), result);
1181   return result;
1182 }
1183
1184 bool SBThread::IsSuspended() {
1185   std::unique_lock<std::recursive_mutex> lock;
1186   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1187
1188   if (exe_ctx.HasThreadScope())
1189     return exe_ctx.GetThreadPtr()->GetResumeState() == eStateSuspended;
1190   return false;
1191 }
1192
1193 bool SBThread::IsStopped() {
1194   std::unique_lock<std::recursive_mutex> lock;
1195   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1196
1197   if (exe_ctx.HasThreadScope())
1198     return StateIsStoppedState(exe_ctx.GetThreadPtr()->GetState(), true);
1199   return false;
1200 }
1201
1202 SBProcess SBThread::GetProcess() {
1203   SBProcess sb_process;
1204   std::unique_lock<std::recursive_mutex> lock;
1205   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1206
1207   if (exe_ctx.HasThreadScope()) {
1208     // Have to go up to the target so we can get a shared pointer to our
1209     // process...
1210     sb_process.SetSP(exe_ctx.GetProcessSP());
1211   }
1212
1213   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
1214   if (log) {
1215     SBStream frame_desc_strm;
1216     sb_process.GetDescription(frame_desc_strm);
1217     log->Printf("SBThread(%p)::GetProcess () => SBProcess(%p): %s",
1218                 static_cast<void *>(exe_ctx.GetThreadPtr()),
1219                 static_cast<void *>(sb_process.GetSP().get()),
1220                 frame_desc_strm.GetData());
1221   }
1222
1223   return sb_process;
1224 }
1225
1226 uint32_t SBThread::GetNumFrames() {
1227   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
1228
1229   uint32_t num_frames = 0;
1230   std::unique_lock<std::recursive_mutex> lock;
1231   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1232
1233   if (exe_ctx.HasThreadScope()) {
1234     Process::StopLocker stop_locker;
1235     if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
1236       num_frames = exe_ctx.GetThreadPtr()->GetStackFrameCount();
1237     } else {
1238       if (log)
1239         log->Printf("SBThread(%p)::GetNumFrames() => error: process is running",
1240                     static_cast<void *>(exe_ctx.GetThreadPtr()));
1241     }
1242   }
1243
1244   if (log)
1245     log->Printf("SBThread(%p)::GetNumFrames () => %u",
1246                 static_cast<void *>(exe_ctx.GetThreadPtr()), num_frames);
1247
1248   return num_frames;
1249 }
1250
1251 SBFrame SBThread::GetFrameAtIndex(uint32_t idx) {
1252   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
1253
1254   SBFrame sb_frame;
1255   StackFrameSP frame_sp;
1256   std::unique_lock<std::recursive_mutex> lock;
1257   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1258
1259   if (exe_ctx.HasThreadScope()) {
1260     Process::StopLocker stop_locker;
1261     if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
1262       frame_sp = exe_ctx.GetThreadPtr()->GetStackFrameAtIndex(idx);
1263       sb_frame.SetFrameSP(frame_sp);
1264     } else {
1265       if (log)
1266         log->Printf(
1267             "SBThread(%p)::GetFrameAtIndex() => error: process is running",
1268             static_cast<void *>(exe_ctx.GetThreadPtr()));
1269     }
1270   }
1271
1272   if (log) {
1273     SBStream frame_desc_strm;
1274     sb_frame.GetDescription(frame_desc_strm);
1275     log->Printf("SBThread(%p)::GetFrameAtIndex (idx=%d) => SBFrame(%p): %s",
1276                 static_cast<void *>(exe_ctx.GetThreadPtr()), idx,
1277                 static_cast<void *>(frame_sp.get()), frame_desc_strm.GetData());
1278   }
1279
1280   return sb_frame;
1281 }
1282
1283 lldb::SBFrame SBThread::GetSelectedFrame() {
1284   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
1285
1286   SBFrame sb_frame;
1287   StackFrameSP frame_sp;
1288   std::unique_lock<std::recursive_mutex> lock;
1289   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1290
1291   if (exe_ctx.HasThreadScope()) {
1292     Process::StopLocker stop_locker;
1293     if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
1294       frame_sp = exe_ctx.GetThreadPtr()->GetSelectedFrame();
1295       sb_frame.SetFrameSP(frame_sp);
1296     } else {
1297       if (log)
1298         log->Printf(
1299             "SBThread(%p)::GetSelectedFrame() => error: process is running",
1300             static_cast<void *>(exe_ctx.GetThreadPtr()));
1301     }
1302   }
1303
1304   if (log) {
1305     SBStream frame_desc_strm;
1306     sb_frame.GetDescription(frame_desc_strm);
1307     log->Printf("SBThread(%p)::GetSelectedFrame () => SBFrame(%p): %s",
1308                 static_cast<void *>(exe_ctx.GetThreadPtr()),
1309                 static_cast<void *>(frame_sp.get()), frame_desc_strm.GetData());
1310   }
1311
1312   return sb_frame;
1313 }
1314
1315 lldb::SBFrame SBThread::SetSelectedFrame(uint32_t idx) {
1316   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
1317
1318   SBFrame sb_frame;
1319   StackFrameSP frame_sp;
1320   std::unique_lock<std::recursive_mutex> lock;
1321   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1322
1323   if (exe_ctx.HasThreadScope()) {
1324     Process::StopLocker stop_locker;
1325     if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
1326       Thread *thread = exe_ctx.GetThreadPtr();
1327       frame_sp = thread->GetStackFrameAtIndex(idx);
1328       if (frame_sp) {
1329         thread->SetSelectedFrame(frame_sp.get());
1330         sb_frame.SetFrameSP(frame_sp);
1331       }
1332     } else {
1333       if (log)
1334         log->Printf(
1335             "SBThread(%p)::SetSelectedFrame() => error: process is running",
1336             static_cast<void *>(exe_ctx.GetThreadPtr()));
1337     }
1338   }
1339
1340   if (log) {
1341     SBStream frame_desc_strm;
1342     sb_frame.GetDescription(frame_desc_strm);
1343     log->Printf("SBThread(%p)::SetSelectedFrame (idx=%u) => SBFrame(%p): %s",
1344                 static_cast<void *>(exe_ctx.GetThreadPtr()), idx,
1345                 static_cast<void *>(frame_sp.get()), frame_desc_strm.GetData());
1346   }
1347   return sb_frame;
1348 }
1349
1350 bool SBThread::EventIsThreadEvent(const SBEvent &event) {
1351   return Thread::ThreadEventData::GetEventDataFromEvent(event.get()) != NULL;
1352 }
1353
1354 SBFrame SBThread::GetStackFrameFromEvent(const SBEvent &event) {
1355   return Thread::ThreadEventData::GetStackFrameFromEvent(event.get());
1356 }
1357
1358 SBThread SBThread::GetThreadFromEvent(const SBEvent &event) {
1359   return Thread::ThreadEventData::GetThreadFromEvent(event.get());
1360 }
1361
1362 bool SBThread::operator==(const SBThread &rhs) const {
1363   return m_opaque_sp->GetThreadSP().get() ==
1364          rhs.m_opaque_sp->GetThreadSP().get();
1365 }
1366
1367 bool SBThread::operator!=(const SBThread &rhs) const {
1368   return m_opaque_sp->GetThreadSP().get() !=
1369          rhs.m_opaque_sp->GetThreadSP().get();
1370 }
1371
1372 bool SBThread::GetStatus(SBStream &status) const {
1373   Stream &strm = status.ref();
1374
1375   std::unique_lock<std::recursive_mutex> lock;
1376   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1377
1378   if (exe_ctx.HasThreadScope()) {
1379     exe_ctx.GetThreadPtr()->GetStatus(strm, 0, 1, 1, true);
1380   } else
1381     strm.PutCString("No status");
1382
1383   return true;
1384 }
1385
1386 bool SBThread::GetDescription(SBStream &description) const {
1387     return GetDescription(description, false);
1388 }
1389
1390 bool SBThread::GetDescription(SBStream &description, bool stop_format) const {
1391   Stream &strm = description.ref();
1392
1393   std::unique_lock<std::recursive_mutex> lock;
1394   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1395
1396   if (exe_ctx.HasThreadScope()) {
1397     exe_ctx.GetThreadPtr()->DumpUsingSettingsFormat(strm,
1398                                                     LLDB_INVALID_THREAD_ID,
1399                                                     stop_format);
1400     // strm.Printf("SBThread: tid = 0x%4.4" PRIx64,
1401     // exe_ctx.GetThreadPtr()->GetID());
1402   } else
1403     strm.PutCString("No value");
1404
1405   return true;
1406 }
1407
1408 SBThread SBThread::GetExtendedBacktraceThread(const char *type) {
1409   Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
1410   std::unique_lock<std::recursive_mutex> lock;
1411   ExecutionContext exe_ctx(m_opaque_sp.get(), lock);
1412   SBThread sb_origin_thread;
1413
1414   if (exe_ctx.HasThreadScope()) {
1415     Process::StopLocker stop_locker;
1416     if (stop_locker.TryLock(&exe_ctx.GetProcessPtr()->GetRunLock())) {
1417       ThreadSP real_thread(exe_ctx.GetThreadSP());
1418       if (real_thread) {
1419         ConstString type_const(type);
1420         Process *process = exe_ctx.GetProcessPtr();
1421         if (process) {
1422           SystemRuntime *runtime = process->GetSystemRuntime();
1423           if (runtime) {
1424             ThreadSP new_thread_sp(
1425                 runtime->GetExtendedBacktraceThread(real_thread, type_const));
1426             if (new_thread_sp) {
1427               // Save this in the Process' ExtendedThreadList so a strong
1428               // pointer retains the object.
1429               process->GetExtendedThreadList().AddThread(new_thread_sp);
1430               sb_origin_thread.SetThread(new_thread_sp);
1431               if (log) {
1432                 const char *queue_name = new_thread_sp->GetQueueName();
1433                 if (queue_name == NULL)
1434                   queue_name = "";
1435                 log->Printf("SBThread(%p)::GetExtendedBacktraceThread() => new "
1436                             "extended Thread "
1437                             "created (%p) with queue_id 0x%" PRIx64
1438                             " queue name '%s'",
1439                             static_cast<void *>(exe_ctx.GetThreadPtr()),
1440                             static_cast<void *>(new_thread_sp.get()),
1441                             new_thread_sp->GetQueueID(), queue_name);
1442               }
1443             }
1444           }
1445         }
1446       }
1447     } else {
1448       if (log)
1449         log->Printf("SBThread(%p)::GetExtendedBacktraceThread() => error: "
1450                     "process is running",
1451                     static_cast<void *>(exe_ctx.GetThreadPtr()));
1452     }
1453   }
1454
1455   if (log && sb_origin_thread.IsValid() == false)
1456     log->Printf("SBThread(%p)::GetExtendedBacktraceThread() is not returning a "
1457                 "Valid thread",
1458                 static_cast<void *>(exe_ctx.GetThreadPtr()));
1459   return sb_origin_thread;
1460 }
1461
1462 uint32_t SBThread::GetExtendedBacktraceOriginatingIndexID() {
1463   ThreadSP thread_sp(m_opaque_sp->GetThreadSP());
1464   if (thread_sp)
1465     return thread_sp->GetExtendedBacktraceOriginatingIndexID();
1466   return LLDB_INVALID_INDEX32;
1467 }
1468
1469 bool SBThread::SafeToCallFunctions() {
1470   ThreadSP thread_sp(m_opaque_sp->GetThreadSP());
1471   if (thread_sp)
1472     return thread_sp->SafeToCallFunctions();
1473   return true;
1474 }
1475
1476 lldb_private::Thread *SBThread::operator->() {
1477   ThreadSP thread_sp(m_opaque_sp->GetThreadSP());
1478   if (thread_sp)
1479     return thread_sp.get();
1480   else
1481     return NULL;
1482 }
1483
1484 lldb_private::Thread *SBThread::get() {
1485   ThreadSP thread_sp(m_opaque_sp->GetThreadSP());
1486   if (thread_sp)
1487     return thread_sp.get();
1488   else
1489     return NULL;
1490 }