1 //===-- ProcessKDP.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 // C Includes 11 #include <errno.h> 12 #include <stdlib.h> 13 14 // C++ Includes 15 // Other libraries and framework includes 16 #include "lldb/Core/ConnectionFileDescriptor.h" 17 #include "lldb/Core/Debugger.h" 18 #include "lldb/Core/PluginManager.h" 19 #include "lldb/Core/State.h" 20 #include "lldb/Host/Host.h" 21 #include "lldb/Target/Target.h" 22 #include "lldb/Target/Thread.h" 23 24 // Project includes 25 #include "ProcessKDP.h" 26 #include "ProcessKDPLog.h" 27 #include "ThreadKDP.h" 28 #include "StopInfoMachException.h" 29 30 using namespace lldb; 31 using namespace lldb_private; 32 33 const char * 34 ProcessKDP::GetPluginNameStatic() 35 { 36 return "kdp-remote"; 37 } 38 39 const char * 40 ProcessKDP::GetPluginDescriptionStatic() 41 { 42 return "KDP Remote protocol based debugging plug-in for darwin kernel debugging."; 43 } 44 45 void 46 ProcessKDP::Terminate() 47 { 48 PluginManager::UnregisterPlugin (ProcessKDP::CreateInstance); 49 } 50 51 52 lldb::ProcessSP 53 ProcessKDP::CreateInstance (Target &target, 54 Listener &listener, 55 const FileSpec *crash_file_path) 56 { 57 lldb::ProcessSP process_sp; 58 if (crash_file_path == NULL) 59 process_sp.reset(new ProcessKDP (target, listener)); 60 return process_sp; 61 } 62 63 bool 64 ProcessKDP::CanDebug(Target &target, bool plugin_specified_by_name) 65 { 66 if (plugin_specified_by_name) 67 return true; 68 69 // For now we are just making sure the file exists for a given module 70 Module *exe_module = target.GetExecutableModulePointer(); 71 if (exe_module) 72 { 73 const llvm::Triple &triple_ref = target.GetArchitecture().GetTriple(); 74 if (triple_ref.getOS() == llvm::Triple::Darwin && 75 triple_ref.getVendor() == llvm::Triple::Apple) 76 { 77 ObjectFile *exe_objfile = exe_module->GetObjectFile(); 78 if (exe_objfile->GetType() == ObjectFile::eTypeExecutable && 79 exe_objfile->GetStrata() == ObjectFile::eStrataKernel) 80 return true; 81 } 82 } 83 return false; 84 } 85 86 //---------------------------------------------------------------------- 87 // ProcessKDP constructor 88 //---------------------------------------------------------------------- 89 ProcessKDP::ProcessKDP(Target& target, Listener &listener) : 90 Process (target, listener), 91 m_comm("lldb.process.kdp-remote.communication"), 92 m_async_broadcaster (NULL, "lldb.process.kdp-remote.async-broadcaster"), 93 m_async_thread (LLDB_INVALID_HOST_THREAD) 94 { 95 // m_async_broadcaster.SetEventName (eBroadcastBitAsyncThreadShouldExit, "async thread should exit"); 96 // m_async_broadcaster.SetEventName (eBroadcastBitAsyncContinue, "async thread continue"); 97 } 98 99 //---------------------------------------------------------------------- 100 // Destructor 101 //---------------------------------------------------------------------- 102 ProcessKDP::~ProcessKDP() 103 { 104 Clear(); 105 // We need to call finalize on the process before destroying ourselves 106 // to make sure all of the broadcaster cleanup goes as planned. If we 107 // destruct this class, then Process::~Process() might have problems 108 // trying to fully destroy the broadcaster. 109 Finalize(); 110 } 111 112 //---------------------------------------------------------------------- 113 // PluginInterface 114 //---------------------------------------------------------------------- 115 const char * 116 ProcessKDP::GetPluginName() 117 { 118 return "Process debugging plug-in that uses the Darwin KDP remote protocol"; 119 } 120 121 const char * 122 ProcessKDP::GetShortPluginName() 123 { 124 return GetPluginNameStatic(); 125 } 126 127 uint32_t 128 ProcessKDP::GetPluginVersion() 129 { 130 return 1; 131 } 132 133 Error 134 ProcessKDP::WillLaunch (Module* module) 135 { 136 Error error; 137 error.SetErrorString ("launching not supported in kdp-remote plug-in"); 138 return error; 139 } 140 141 Error 142 ProcessKDP::WillAttachToProcessWithID (lldb::pid_t pid) 143 { 144 Error error; 145 error.SetErrorString ("attaching to a by process ID not supported in kdp-remote plug-in"); 146 return error; 147 } 148 149 Error 150 ProcessKDP::WillAttachToProcessWithName (const char *process_name, bool wait_for_launch) 151 { 152 Error error; 153 error.SetErrorString ("attaching to a by process name not supported in kdp-remote plug-in"); 154 return error; 155 } 156 157 Error 158 ProcessKDP::DoConnectRemote (const char *remote_url) 159 { 160 // TODO: fill in the remote connection to the remote KDP here! 161 Error error; 162 163 if (remote_url == NULL || remote_url[0] == '\0') 164 remote_url = "udp://localhost:41139"; 165 166 std::auto_ptr<ConnectionFileDescriptor> conn_ap(new ConnectionFileDescriptor()); 167 if (conn_ap.get()) 168 { 169 // Only try once for now. 170 // TODO: check if we should be retrying? 171 const uint32_t max_retry_count = 1; 172 for (uint32_t retry_count = 0; retry_count < max_retry_count; ++retry_count) 173 { 174 if (conn_ap->Connect(remote_url, &error) == eConnectionStatusSuccess) 175 break; 176 usleep (100000); 177 } 178 } 179 180 if (conn_ap->IsConnected()) 181 { 182 const uint16_t reply_port = conn_ap->GetReadPort (); 183 184 if (reply_port != 0) 185 { 186 m_comm.SetConnection(conn_ap.release()); 187 188 if (m_comm.SendRequestReattach(reply_port)) 189 { 190 if (m_comm.SendRequestConnect(reply_port, reply_port, "Greetings from LLDB...")) 191 { 192 m_comm.GetVersion(); 193 uint32_t cpu = m_comm.GetCPUType(); 194 uint32_t sub = m_comm.GetCPUSubtype(); 195 ArchSpec kernel_arch; 196 kernel_arch.SetArchitecture(eArchTypeMachO, cpu, sub); 197 m_target.SetArchitecture(kernel_arch); 198 SetID (1); 199 GetThreadList (); 200 SetPrivateState (eStateStopped); 201 StreamSP async_strm_sp(m_target.GetDebugger().GetAsyncOutputStream()); 202 if (async_strm_sp) 203 { 204 const char *cstr; 205 if ((cstr = m_comm.GetKernelVersion ()) != NULL) 206 { 207 async_strm_sp->Printf ("Version: %s\n", cstr); 208 async_strm_sp->Flush(); 209 } 210 // if ((cstr = m_comm.GetImagePath ()) != NULL) 211 // { 212 // async_strm_sp->Printf ("Image Path: %s\n", cstr); 213 // async_strm_sp->Flush(); 214 // } 215 } 216 } 217 } 218 else 219 { 220 error.SetErrorString("KDP reattach failed"); 221 } 222 } 223 else 224 { 225 error.SetErrorString("invalid reply port from UDP connection"); 226 } 227 } 228 else 229 { 230 if (error.Success()) 231 error.SetErrorStringWithFormat ("failed to connect to '%s'", remote_url); 232 } 233 if (error.Fail()) 234 m_comm.Disconnect(); 235 236 return error; 237 } 238 239 //---------------------------------------------------------------------- 240 // Process Control 241 //---------------------------------------------------------------------- 242 Error 243 ProcessKDP::DoLaunch (Module *exe_module, 244 const ProcessLaunchInfo &launch_info) 245 { 246 Error error; 247 error.SetErrorString ("launching not supported in kdp-remote plug-in"); 248 return error; 249 } 250 251 252 Error 253 ProcessKDP::DoAttachToProcessWithID (lldb::pid_t attach_pid) 254 { 255 Error error; 256 error.SetErrorString ("attach to process by ID is not suppported in kdp remote debugging"); 257 return error; 258 } 259 260 Error 261 ProcessKDP::DoAttachToProcessWithName (const char *process_name, bool wait_for_launch) 262 { 263 Error error; 264 error.SetErrorString ("attach to process by name is not suppported in kdp remote debugging"); 265 return error; 266 } 267 268 269 void 270 ProcessKDP::DidAttach () 271 { 272 LogSP log (ProcessKDPLog::GetLogIfAllCategoriesSet (KDP_LOG_PROCESS)); 273 if (log) 274 log->Printf ("ProcessKDP::DidAttach()"); 275 if (GetID() != LLDB_INVALID_PROCESS_ID) 276 { 277 // TODO: figure out the register context that we will use 278 } 279 } 280 281 Error 282 ProcessKDP::WillResume () 283 { 284 return Error(); 285 } 286 287 Error 288 ProcessKDP::DoResume () 289 { 290 Error error; 291 if (!m_comm.SendRequestResume ()) 292 error.SetErrorString ("KDP resume failed"); 293 return error; 294 } 295 296 uint32_t 297 ProcessKDP::UpdateThreadList (ThreadList &old_thread_list, ThreadList &new_thread_list) 298 { 299 // locker will keep a mutex locked until it goes out of scope 300 LogSP log (ProcessKDPLog::GetLogIfAllCategoriesSet (KDP_LOG_THREAD)); 301 if (log && log->GetMask().Test(KDP_LOG_VERBOSE)) 302 log->Printf ("ProcessKDP::%s (pid = %llu)", __FUNCTION__, GetID()); 303 304 // We currently are making only one thread per core and we 305 // actually don't know about actual threads. Eventually we 306 // want to get the thread list from memory and note which 307 // threads are on CPU as those are the only ones that we 308 // will be able to resume. 309 const uint32_t cpu_mask = m_comm.GetCPUMask(); 310 for (uint32_t cpu_mask_bit = 1; cpu_mask_bit & cpu_mask; cpu_mask_bit <<= 1) 311 { 312 lldb::tid_t tid = cpu_mask_bit; 313 ThreadSP thread_sp (old_thread_list.FindThreadByID (tid, false)); 314 if (!thread_sp) 315 thread_sp.reset(new ThreadKDP (*this, tid)); 316 new_thread_list.AddThread(thread_sp); 317 } 318 return new_thread_list.GetSize(false); 319 } 320 321 322 StateType 323 ProcessKDP::SetThreadStopInfo (StringExtractor& stop_packet) 324 { 325 // TODO: figure out why we stopped given the packet that tells us we stopped... 326 return eStateStopped; 327 } 328 329 void 330 ProcessKDP::RefreshStateAfterStop () 331 { 332 // Let all threads recover from stopping and do any clean up based 333 // on the previous thread state (if any). 334 m_thread_list.RefreshStateAfterStop(); 335 //SetThreadStopInfo (m_last_stop_packet); 336 } 337 338 Error 339 ProcessKDP::DoHalt (bool &caused_stop) 340 { 341 Error error; 342 343 // bool timed_out = false; 344 Mutex::Locker locker; 345 346 if (m_public_state.GetValue() == eStateAttaching) 347 { 348 // We are being asked to halt during an attach. We need to just close 349 // our file handle and debugserver will go away, and we can be done... 350 m_comm.Disconnect(); 351 } 352 else 353 { 354 if (!m_comm.SendRequestSuspend ()) 355 error.SetErrorString ("KDP halt failed"); 356 } 357 return error; 358 } 359 360 Error 361 ProcessKDP::InterruptIfRunning (bool discard_thread_plans, 362 bool catch_stop_event, 363 EventSP &stop_event_sp) 364 { 365 Error error; 366 367 LogSP log (ProcessKDPLog::GetLogIfAllCategoriesSet(KDP_LOG_PROCESS)); 368 369 bool paused_private_state_thread = false; 370 const bool is_running = m_comm.IsRunning(); 371 if (log) 372 log->Printf ("ProcessKDP::InterruptIfRunning(discard_thread_plans=%i, catch_stop_event=%i) is_running=%i", 373 discard_thread_plans, 374 catch_stop_event, 375 is_running); 376 377 if (discard_thread_plans) 378 { 379 if (log) 380 log->Printf ("ProcessKDP::InterruptIfRunning() discarding all thread plans"); 381 m_thread_list.DiscardThreadPlans(); 382 } 383 if (is_running) 384 { 385 if (catch_stop_event) 386 { 387 if (log) 388 log->Printf ("ProcessKDP::InterruptIfRunning() pausing private state thread"); 389 PausePrivateStateThread(); 390 paused_private_state_thread = true; 391 } 392 393 bool timed_out = false; 394 // bool sent_interrupt = false; 395 Mutex::Locker locker; 396 397 // TODO: implement halt in CommunicationKDP 398 // if (!m_comm.SendInterrupt (locker, 1, sent_interrupt, timed_out)) 399 // { 400 // if (timed_out) 401 // error.SetErrorString("timed out sending interrupt packet"); 402 // else 403 // error.SetErrorString("unknown error sending interrupt packet"); 404 // if (paused_private_state_thread) 405 // ResumePrivateStateThread(); 406 // return error; 407 // } 408 409 if (catch_stop_event) 410 { 411 // LISTEN HERE 412 TimeValue timeout_time; 413 timeout_time = TimeValue::Now(); 414 timeout_time.OffsetWithSeconds(5); 415 StateType state = WaitForStateChangedEventsPrivate (&timeout_time, stop_event_sp); 416 417 timed_out = state == eStateInvalid; 418 if (log) 419 log->Printf ("ProcessKDP::InterruptIfRunning() catch stop event: state = %s, timed-out=%i", StateAsCString(state), timed_out); 420 421 if (timed_out) 422 error.SetErrorString("unable to verify target stopped"); 423 } 424 425 if (paused_private_state_thread) 426 { 427 if (log) 428 log->Printf ("ProcessKDP::InterruptIfRunning() resuming private state thread"); 429 ResumePrivateStateThread(); 430 } 431 } 432 return error; 433 } 434 435 Error 436 ProcessKDP::WillDetach () 437 { 438 LogSP log (ProcessKDPLog::GetLogIfAllCategoriesSet(KDP_LOG_PROCESS)); 439 if (log) 440 log->Printf ("ProcessKDP::WillDetach()"); 441 442 bool discard_thread_plans = true; 443 bool catch_stop_event = true; 444 EventSP event_sp; 445 return InterruptIfRunning (discard_thread_plans, catch_stop_event, event_sp); 446 } 447 448 Error 449 ProcessKDP::DoDetach() 450 { 451 Error error; 452 LogSP log (ProcessKDPLog::GetLogIfAllCategoriesSet(KDP_LOG_PROCESS)); 453 if (log) 454 log->Printf ("ProcessKDP::DoDetach()"); 455 456 DisableAllBreakpointSites (); 457 458 m_thread_list.DiscardThreadPlans(); 459 460 if (m_comm.IsConnected()) 461 { 462 463 m_comm.SendRequestDisconnect(); 464 465 size_t response_size = m_comm.Disconnect (); 466 if (log) 467 { 468 if (response_size) 469 log->PutCString ("ProcessKDP::DoDetach() detach packet sent successfully"); 470 else 471 log->PutCString ("ProcessKDP::DoDetach() detach packet send failed"); 472 } 473 } 474 // Sleep for one second to let the process get all detached... 475 StopAsyncThread (); 476 477 m_comm.Clear(); 478 479 SetPrivateState (eStateDetached); 480 ResumePrivateStateThread(); 481 482 //KillDebugserverProcess (); 483 return error; 484 } 485 486 Error 487 ProcessKDP::DoDestroy () 488 { 489 Error error; 490 LogSP log (ProcessKDPLog::GetLogIfAllCategoriesSet(KDP_LOG_PROCESS)); 491 if (log) 492 log->Printf ("ProcessKDP::DoDestroy()"); 493 494 // Interrupt if our inferior is running... 495 if (m_comm.IsConnected()) 496 { 497 if (m_public_state.GetValue() == eStateAttaching) 498 { 499 // We are being asked to halt during an attach. We need to just close 500 // our file handle and debugserver will go away, and we can be done... 501 m_comm.Disconnect(); 502 } 503 else 504 { 505 DisableAllBreakpointSites (); 506 507 m_comm.SendRequestDisconnect(); 508 509 StringExtractor response; 510 // TODO: Send kill packet? 511 SetExitStatus(SIGABRT, NULL); 512 } 513 } 514 StopAsyncThread (); 515 m_comm.Clear(); 516 return error; 517 } 518 519 //------------------------------------------------------------------ 520 // Process Queries 521 //------------------------------------------------------------------ 522 523 bool 524 ProcessKDP::IsAlive () 525 { 526 return m_comm.IsConnected() && m_private_state.GetValue() != eStateExited; 527 } 528 529 //------------------------------------------------------------------ 530 // Process Memory 531 //------------------------------------------------------------------ 532 size_t 533 ProcessKDP::DoReadMemory (addr_t addr, void *buf, size_t size, Error &error) 534 { 535 if (m_comm.IsConnected()) 536 return m_comm.SendRequestReadMemory (addr, buf, size, error); 537 error.SetErrorString ("not connected"); 538 return 0; 539 } 540 541 size_t 542 ProcessKDP::DoWriteMemory (addr_t addr, const void *buf, size_t size, Error &error) 543 { 544 error.SetErrorString ("ProcessKDP::DoReadMemory not implemented"); 545 return 0; 546 } 547 548 lldb::addr_t 549 ProcessKDP::DoAllocateMemory (size_t size, uint32_t permissions, Error &error) 550 { 551 error.SetErrorString ("memory allocation not suppported in kdp remote debugging"); 552 return LLDB_INVALID_ADDRESS; 553 } 554 555 Error 556 ProcessKDP::DoDeallocateMemory (lldb::addr_t addr) 557 { 558 Error error; 559 error.SetErrorString ("memory deallocation not suppported in kdp remote debugging"); 560 return error; 561 } 562 563 Error 564 ProcessKDP::EnableBreakpoint (BreakpointSite *bp_site) 565 { 566 if (m_comm.LocalBreakpointsAreSupported ()) 567 { 568 Error error; 569 if (!bp_site->IsEnabled()) 570 { 571 if (m_comm.SendRequestBreakpoint(true, bp_site->GetLoadAddress())) 572 { 573 bp_site->SetEnabled(true); 574 bp_site->SetType (BreakpointSite::eExternal); 575 } 576 else 577 { 578 error.SetErrorString ("KDP set breakpoint failed"); 579 } 580 } 581 return error; 582 } 583 return EnableSoftwareBreakpoint (bp_site); 584 } 585 586 Error 587 ProcessKDP::DisableBreakpoint (BreakpointSite *bp_site) 588 { 589 if (m_comm.LocalBreakpointsAreSupported ()) 590 { 591 Error error; 592 if (bp_site->IsEnabled()) 593 { 594 BreakpointSite::Type bp_type = bp_site->GetType(); 595 if (bp_type == BreakpointSite::eExternal) 596 { 597 if (m_comm.SendRequestBreakpoint(false, bp_site->GetLoadAddress())) 598 bp_site->SetEnabled(false); 599 else 600 error.SetErrorString ("KDP remove breakpoint failed"); 601 } 602 else 603 { 604 error = DisableSoftwareBreakpoint (bp_site); 605 } 606 } 607 return error; 608 } 609 return DisableSoftwareBreakpoint (bp_site); 610 } 611 612 Error 613 ProcessKDP::EnableWatchpoint (Watchpoint *wp) 614 { 615 Error error; 616 error.SetErrorString ("watchpoints are not suppported in kdp remote debugging"); 617 return error; 618 } 619 620 Error 621 ProcessKDP::DisableWatchpoint (Watchpoint *wp) 622 { 623 Error error; 624 error.SetErrorString ("watchpoints are not suppported in kdp remote debugging"); 625 return error; 626 } 627 628 void 629 ProcessKDP::Clear() 630 { 631 m_thread_list.Clear(); 632 } 633 634 Error 635 ProcessKDP::DoSignal (int signo) 636 { 637 Error error; 638 error.SetErrorString ("sending signals is not suppported in kdp remote debugging"); 639 return error; 640 } 641 642 void 643 ProcessKDP::Initialize() 644 { 645 static bool g_initialized = false; 646 647 if (g_initialized == false) 648 { 649 g_initialized = true; 650 PluginManager::RegisterPlugin (GetPluginNameStatic(), 651 GetPluginDescriptionStatic(), 652 CreateInstance); 653 654 Log::Callbacks log_callbacks = { 655 ProcessKDPLog::DisableLog, 656 ProcessKDPLog::EnableLog, 657 ProcessKDPLog::ListLogCategories 658 }; 659 660 Log::RegisterLogChannel (ProcessKDP::GetPluginNameStatic(), log_callbacks); 661 } 662 } 663 664 bool 665 ProcessKDP::StartAsyncThread () 666 { 667 LogSP log (ProcessKDPLog::GetLogIfAllCategoriesSet(KDP_LOG_PROCESS)); 668 669 if (log) 670 log->Printf ("ProcessKDP::%s ()", __FUNCTION__); 671 672 // Create a thread that watches our internal state and controls which 673 // events make it to clients (into the DCProcess event queue). 674 m_async_thread = Host::ThreadCreate ("<lldb.process.kdp-remote.async>", ProcessKDP::AsyncThread, this, NULL); 675 return IS_VALID_LLDB_HOST_THREAD(m_async_thread); 676 } 677 678 void 679 ProcessKDP::StopAsyncThread () 680 { 681 LogSP log (ProcessKDPLog::GetLogIfAllCategoriesSet(KDP_LOG_PROCESS)); 682 683 if (log) 684 log->Printf ("ProcessKDP::%s ()", __FUNCTION__); 685 686 m_async_broadcaster.BroadcastEvent (eBroadcastBitAsyncThreadShouldExit); 687 688 // Stop the stdio thread 689 if (IS_VALID_LLDB_HOST_THREAD(m_async_thread)) 690 { 691 Host::ThreadJoin (m_async_thread, NULL, NULL); 692 } 693 } 694 695 696 void * 697 ProcessKDP::AsyncThread (void *arg) 698 { 699 ProcessKDP *process = (ProcessKDP*) arg; 700 701 LogSP log (ProcessKDPLog::GetLogIfAllCategoriesSet (KDP_LOG_PROCESS)); 702 if (log) 703 log->Printf ("ProcessKDP::%s (arg = %p, pid = %llu) thread starting...", __FUNCTION__, arg, process->GetID()); 704 705 Listener listener ("ProcessKDP::AsyncThread"); 706 EventSP event_sp; 707 const uint32_t desired_event_mask = eBroadcastBitAsyncContinue | 708 eBroadcastBitAsyncThreadShouldExit; 709 710 if (listener.StartListeningForEvents (&process->m_async_broadcaster, desired_event_mask) == desired_event_mask) 711 { 712 listener.StartListeningForEvents (&process->m_comm, Communication::eBroadcastBitReadThreadDidExit); 713 714 bool done = false; 715 while (!done) 716 { 717 if (log) 718 log->Printf ("ProcessKDP::%s (arg = %p, pid = %llu) listener.WaitForEvent (NULL, event_sp)...", __FUNCTION__, arg, process->GetID()); 719 if (listener.WaitForEvent (NULL, event_sp)) 720 { 721 const uint32_t event_type = event_sp->GetType(); 722 if (event_sp->BroadcasterIs (&process->m_async_broadcaster)) 723 { 724 if (log) 725 log->Printf ("ProcessKDP::%s (arg = %p, pid = %llu) Got an event of type: %d...", __FUNCTION__, arg, process->GetID(), event_type); 726 727 switch (event_type) 728 { 729 case eBroadcastBitAsyncContinue: 730 { 731 const EventDataBytes *continue_packet = EventDataBytes::GetEventDataFromEvent(event_sp.get()); 732 733 if (continue_packet) 734 { 735 // TODO: do continue support here 736 737 // const char *continue_cstr = (const char *)continue_packet->GetBytes (); 738 // const size_t continue_cstr_len = continue_packet->GetByteSize (); 739 // if (log) 740 // log->Printf ("ProcessKDP::%s (arg = %p, pid = %i) got eBroadcastBitAsyncContinue: %s", __FUNCTION__, arg, process->GetID(), continue_cstr); 741 // 742 // if (::strstr (continue_cstr, "vAttach") == NULL) 743 // process->SetPrivateState(eStateRunning); 744 // StringExtractor response; 745 // StateType stop_state = process->GetCommunication().SendContinuePacketAndWaitForResponse (process, continue_cstr, continue_cstr_len, response); 746 // 747 // switch (stop_state) 748 // { 749 // case eStateStopped: 750 // case eStateCrashed: 751 // case eStateSuspended: 752 // process->m_last_stop_packet = response; 753 // process->SetPrivateState (stop_state); 754 // break; 755 // 756 // case eStateExited: 757 // process->m_last_stop_packet = response; 758 // response.SetFilePos(1); 759 // process->SetExitStatus(response.GetHexU8(), NULL); 760 // done = true; 761 // break; 762 // 763 // case eStateInvalid: 764 // process->SetExitStatus(-1, "lost connection"); 765 // break; 766 // 767 // default: 768 // process->SetPrivateState (stop_state); 769 // break; 770 // } 771 } 772 } 773 break; 774 775 case eBroadcastBitAsyncThreadShouldExit: 776 if (log) 777 log->Printf ("ProcessKDP::%s (arg = %p, pid = %llu) got eBroadcastBitAsyncThreadShouldExit...", __FUNCTION__, arg, process->GetID()); 778 done = true; 779 break; 780 781 default: 782 if (log) 783 log->Printf ("ProcessKDP::%s (arg = %p, pid = %llu) got unknown event 0x%8.8x", __FUNCTION__, arg, process->GetID(), event_type); 784 done = true; 785 break; 786 } 787 } 788 else if (event_sp->BroadcasterIs (&process->m_comm)) 789 { 790 if (event_type & Communication::eBroadcastBitReadThreadDidExit) 791 { 792 process->SetExitStatus (-1, "lost connection"); 793 done = true; 794 } 795 } 796 } 797 else 798 { 799 if (log) 800 log->Printf ("ProcessKDP::%s (arg = %p, pid = %llu) listener.WaitForEvent (NULL, event_sp) => false", __FUNCTION__, arg, process->GetID()); 801 done = true; 802 } 803 } 804 } 805 806 if (log) 807 log->Printf ("ProcessKDP::%s (arg = %p, pid = %llu) thread exiting...", __FUNCTION__, arg, process->GetID()); 808 809 process->m_async_thread = LLDB_INVALID_HOST_THREAD; 810 return NULL; 811 } 812 813 814