1 //===-- PlatformRemoteGDBServer.cpp -----------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 #include "lldb/lldb-python.h" 11 12 #include "PlatformRemoteGDBServer.h" 13 #include "lldb/Host/Config.h" 14 15 // C Includes 16 #ifndef LLDB_DISABLE_POSIX 17 #include <sys/sysctl.h> 18 #endif 19 20 // C++ Includes 21 // Other libraries and framework includes 22 // Project includes 23 #include "lldb/Breakpoint/BreakpointLocation.h" 24 #include "lldb/Core/ConnectionFileDescriptor.h" 25 #include "lldb/Core/Debugger.h" 26 #include "lldb/Core/Error.h" 27 #include "lldb/Core/Module.h" 28 #include "lldb/Core/ModuleList.h" 29 #include "lldb/Core/PluginManager.h" 30 #include "lldb/Core/StreamString.h" 31 #include "lldb/Host/FileSpec.h" 32 #include "lldb/Host/Host.h" 33 #include "lldb/Target/Process.h" 34 #include "lldb/Target/Target.h" 35 36 using namespace lldb; 37 using namespace lldb_private; 38 39 static bool g_initialized = false; 40 41 void 42 PlatformRemoteGDBServer::Initialize () 43 { 44 if (g_initialized == false) 45 { 46 g_initialized = true; 47 PluginManager::RegisterPlugin (PlatformRemoteGDBServer::GetPluginNameStatic(), 48 PlatformRemoteGDBServer::GetDescriptionStatic(), 49 PlatformRemoteGDBServer::CreateInstance); 50 } 51 } 52 53 void 54 PlatformRemoteGDBServer::Terminate () 55 { 56 if (g_initialized) 57 { 58 g_initialized = false; 59 PluginManager::UnregisterPlugin (PlatformRemoteGDBServer::CreateInstance); 60 } 61 } 62 63 Platform* 64 PlatformRemoteGDBServer::CreateInstance (bool force, const lldb_private::ArchSpec *arch) 65 { 66 bool create = force; 67 if (!create) 68 { 69 create = !arch->TripleVendorWasSpecified() && !arch->TripleOSWasSpecified(); 70 } 71 if (create) 72 return new PlatformRemoteGDBServer (); 73 return NULL; 74 } 75 76 77 lldb_private::ConstString 78 PlatformRemoteGDBServer::GetPluginNameStatic() 79 { 80 static ConstString g_name("remote-gdb-server"); 81 return g_name; 82 } 83 84 const char * 85 PlatformRemoteGDBServer::GetDescriptionStatic() 86 { 87 return "A platform that uses the GDB remote protocol as the communication transport."; 88 } 89 90 const char * 91 PlatformRemoteGDBServer::GetDescription () 92 { 93 if (m_platform_description.empty()) 94 { 95 if (IsConnected()) 96 { 97 // Send the get description packet 98 } 99 } 100 101 if (!m_platform_description.empty()) 102 return m_platform_description.c_str(); 103 return GetDescriptionStatic(); 104 } 105 106 Error 107 PlatformRemoteGDBServer::ResolveExecutable (const FileSpec &exe_file, 108 const ArchSpec &exe_arch, 109 lldb::ModuleSP &exe_module_sp, 110 const FileSpecList *module_search_paths_ptr) 111 { 112 Error error; 113 //error.SetErrorString ("PlatformRemoteGDBServer::ResolveExecutable() is unimplemented"); 114 if (m_gdb_client.GetFileExists(exe_file)) 115 return error; 116 // TODO: get the remote end to somehow resolve this file 117 error.SetErrorString("file not found on remote end"); 118 return error; 119 } 120 121 Error 122 PlatformRemoteGDBServer::GetFileWithUUID (const FileSpec &platform_file, 123 const UUID *uuid_ptr, 124 FileSpec &local_file) 125 { 126 // Default to the local case 127 local_file = platform_file; 128 return Error(); 129 } 130 131 //------------------------------------------------------------------ 132 /// Default Constructor 133 //------------------------------------------------------------------ 134 PlatformRemoteGDBServer::PlatformRemoteGDBServer () : 135 Platform(false), // This is a remote platform 136 m_gdb_client(true) 137 { 138 } 139 140 //------------------------------------------------------------------ 141 /// Destructor. 142 /// 143 /// The destructor is virtual since this class is designed to be 144 /// inherited from by the plug-in instance. 145 //------------------------------------------------------------------ 146 PlatformRemoteGDBServer::~PlatformRemoteGDBServer() 147 { 148 } 149 150 bool 151 PlatformRemoteGDBServer::GetSupportedArchitectureAtIndex (uint32_t idx, ArchSpec &arch) 152 { 153 return false; 154 } 155 156 size_t 157 PlatformRemoteGDBServer::GetSoftwareBreakpointTrapOpcode (Target &target, BreakpointSite *bp_site) 158 { 159 // This isn't needed if the z/Z packets are supported in the GDB remote 160 // server. But we might need a packet to detect this. 161 return 0; 162 } 163 164 bool 165 PlatformRemoteGDBServer::GetRemoteOSVersion () 166 { 167 uint32_t major, minor, update; 168 if (m_gdb_client.GetOSVersion (major, minor, update)) 169 { 170 m_major_os_version = major; 171 m_minor_os_version = minor; 172 m_update_os_version = update; 173 return true; 174 } 175 return false; 176 } 177 178 bool 179 PlatformRemoteGDBServer::GetRemoteOSBuildString (std::string &s) 180 { 181 return m_gdb_client.GetOSBuildString (s); 182 } 183 184 bool 185 PlatformRemoteGDBServer::GetRemoteOSKernelDescription (std::string &s) 186 { 187 return m_gdb_client.GetOSKernelDescription (s); 188 } 189 190 // Remote Platform subclasses need to override this function 191 ArchSpec 192 PlatformRemoteGDBServer::GetRemoteSystemArchitecture () 193 { 194 return m_gdb_client.GetSystemArchitecture(); 195 } 196 197 lldb_private::ConstString 198 PlatformRemoteGDBServer::GetRemoteWorkingDirectory() 199 { 200 if (IsConnected()) 201 { 202 Log *log = GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM); 203 std::string cwd; 204 if (m_gdb_client.GetWorkingDir(cwd)) 205 { 206 ConstString working_dir(cwd.c_str()); 207 if (log) 208 log->Printf("PlatformRemoteGDBServer::GetRemoteWorkingDirectory() -> '%s'", working_dir.GetCString()); 209 return working_dir; 210 } 211 else 212 { 213 return ConstString(); 214 } 215 } 216 else 217 { 218 return Platform::GetRemoteWorkingDirectory(); 219 } 220 } 221 222 bool 223 PlatformRemoteGDBServer::SetRemoteWorkingDirectory(const lldb_private::ConstString &path) 224 { 225 if (IsConnected()) 226 { 227 // Clear the working directory it case it doesn't get set correctly. This will 228 // for use to re-read it 229 Log *log = GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM); 230 if (log) 231 log->Printf("PlatformRemoteGDBServer::SetRemoteWorkingDirectory('%s')", path.GetCString()); 232 return m_gdb_client.SetWorkingDir(path.GetCString()) == 0; 233 } 234 else 235 return Platform::SetRemoteWorkingDirectory(path); 236 } 237 238 bool 239 PlatformRemoteGDBServer::IsConnected () const 240 { 241 return m_gdb_client.IsConnected(); 242 } 243 244 Error 245 PlatformRemoteGDBServer::ConnectRemote (Args& args) 246 { 247 Error error; 248 if (IsConnected()) 249 { 250 error.SetErrorStringWithFormat ("the platform is already connected to '%s', execute 'platform disconnect' to close the current connection", 251 GetHostname()); 252 } 253 else 254 { 255 if (args.GetArgumentCount() == 1) 256 { 257 const char *url = args.GetArgumentAtIndex(0); 258 m_gdb_client.SetConnection (new ConnectionFileDescriptor()); 259 const ConnectionStatus status = m_gdb_client.Connect(url, &error); 260 if (status == eConnectionStatusSuccess) 261 { 262 if (m_gdb_client.HandshakeWithServer(&error)) 263 { 264 m_gdb_client.GetHostInfo(); 265 // If a working directory was set prior to connecting, send it down now 266 if (m_working_dir) 267 m_gdb_client.SetWorkingDir(m_working_dir.GetCString()); 268 } 269 else 270 { 271 m_gdb_client.Disconnect(); 272 if (error.Success()) 273 error.SetErrorString("handshake failed"); 274 } 275 } 276 } 277 else 278 { 279 error.SetErrorString ("\"platform connect\" takes a single argument: <connect-url>"); 280 } 281 } 282 283 return error; 284 } 285 286 Error 287 PlatformRemoteGDBServer::DisconnectRemote () 288 { 289 Error error; 290 m_gdb_client.Disconnect(&error); 291 return error; 292 } 293 294 const char * 295 PlatformRemoteGDBServer::GetHostname () 296 { 297 m_gdb_client.GetHostname (m_name); 298 if (m_name.empty()) 299 return NULL; 300 return m_name.c_str(); 301 } 302 303 const char * 304 PlatformRemoteGDBServer::GetUserName (uint32_t uid) 305 { 306 // Try and get a cache user name first 307 const char *cached_user_name = Platform::GetUserName(uid); 308 if (cached_user_name) 309 return cached_user_name; 310 std::string name; 311 if (m_gdb_client.GetUserName(uid, name)) 312 return SetCachedUserName(uid, name.c_str(), name.size()); 313 314 SetUserNameNotFound(uid); // Negative cache so we don't keep sending packets 315 return NULL; 316 } 317 318 const char * 319 PlatformRemoteGDBServer::GetGroupName (uint32_t gid) 320 { 321 const char *cached_group_name = Platform::GetGroupName(gid); 322 if (cached_group_name) 323 return cached_group_name; 324 std::string name; 325 if (m_gdb_client.GetGroupName(gid, name)) 326 return SetCachedGroupName(gid, name.c_str(), name.size()); 327 328 SetGroupNameNotFound(gid); // Negative cache so we don't keep sending packets 329 return NULL; 330 } 331 332 uint32_t 333 PlatformRemoteGDBServer::FindProcesses (const ProcessInstanceInfoMatch &match_info, 334 ProcessInstanceInfoList &process_infos) 335 { 336 return m_gdb_client.FindProcesses (match_info, process_infos); 337 } 338 339 bool 340 PlatformRemoteGDBServer::GetProcessInfo (lldb::pid_t pid, ProcessInstanceInfo &process_info) 341 { 342 return m_gdb_client.GetProcessInfo (pid, process_info); 343 } 344 345 346 Error 347 PlatformRemoteGDBServer::LaunchProcess (ProcessLaunchInfo &launch_info) 348 { 349 Error error; 350 lldb::pid_t pid = LLDB_INVALID_PROCESS_ID; 351 352 m_gdb_client.SetSTDIN ("/dev/null"); 353 m_gdb_client.SetSTDOUT ("/dev/null"); 354 m_gdb_client.SetSTDERR ("/dev/null"); 355 m_gdb_client.SetDisableASLR (launch_info.GetFlags().Test (eLaunchFlagDisableASLR)); 356 m_gdb_client.SetDetachOnError (launch_info.GetFlags().Test (eLaunchFlagDetachOnError)); 357 358 const char *working_dir = launch_info.GetWorkingDirectory(); 359 if (working_dir && working_dir[0]) 360 { 361 m_gdb_client.SetWorkingDir (working_dir); 362 } 363 364 // Send the environment and the program + arguments after we connect 365 const char **envp = launch_info.GetEnvironmentEntries().GetConstArgumentVector(); 366 367 if (envp) 368 { 369 const char *env_entry; 370 for (int i=0; (env_entry = envp[i]); ++i) 371 { 372 if (m_gdb_client.SendEnvironmentPacket(env_entry) != 0) 373 break; 374 } 375 } 376 377 ArchSpec arch_spec = launch_info.GetArchitecture(); 378 const char *arch_triple = arch_spec.GetTriple().str().c_str(); 379 380 m_gdb_client.SendLaunchArchPacket(arch_triple); 381 382 const uint32_t old_packet_timeout = m_gdb_client.SetPacketTimeout (5); 383 int arg_packet_err = m_gdb_client.SendArgumentsPacket (launch_info); 384 m_gdb_client.SetPacketTimeout (old_packet_timeout); 385 if (arg_packet_err == 0) 386 { 387 std::string error_str; 388 if (m_gdb_client.GetLaunchSuccess (error_str)) 389 { 390 pid = m_gdb_client.GetCurrentProcessID (); 391 if (pid != LLDB_INVALID_PROCESS_ID) 392 launch_info.SetProcessID (pid); 393 } 394 else 395 { 396 error.SetErrorString (error_str.c_str()); 397 } 398 } 399 else 400 { 401 error.SetErrorStringWithFormat("'A' packet returned an error: %i", arg_packet_err); 402 } 403 return error; 404 } 405 406 lldb::ProcessSP 407 PlatformRemoteGDBServer::DebugProcess (lldb_private::ProcessLaunchInfo &launch_info, 408 lldb_private::Debugger &debugger, 409 lldb_private::Target *target, // Can be NULL, if NULL create a new target, else use existing one 410 lldb_private::Listener &listener, 411 lldb_private::Error &error) 412 { 413 lldb::ProcessSP process_sp; 414 if (IsRemote()) 415 { 416 if (IsConnected()) 417 { 418 lldb::pid_t debugserver_pid = LLDB_INVALID_PROCESS_ID; 419 ArchSpec remote_arch = GetRemoteSystemArchitecture(); 420 llvm::Triple &remote_triple = remote_arch.GetTriple(); 421 uint16_t port = 0; 422 if (remote_triple.getVendor() == llvm::Triple::Apple && remote_triple.getOS() == llvm::Triple::IOS) 423 { 424 // When remote debugging to iOS, we use a USB mux that always talks 425 // to localhost, so we will need the remote debugserver to accept connections 426 // only from localhost, no matter what our current hostname is 427 port = m_gdb_client.LaunchGDBserverAndGetPort(debugserver_pid, "127.0.0.1"); 428 } 429 else 430 { 431 // All other hosts should use their actual hostname 432 port = m_gdb_client.LaunchGDBserverAndGetPort(debugserver_pid, NULL); 433 } 434 435 if (port == 0) 436 { 437 error.SetErrorStringWithFormat ("unable to launch a GDB server on '%s'", GetHostname ()); 438 } 439 else 440 { 441 if (target == NULL) 442 { 443 TargetSP new_target_sp; 444 445 error = debugger.GetTargetList().CreateTarget (debugger, 446 NULL, 447 NULL, 448 false, 449 NULL, 450 new_target_sp); 451 target = new_target_sp.get(); 452 } 453 else 454 error.Clear(); 455 456 if (target && error.Success()) 457 { 458 debugger.GetTargetList().SetSelectedTarget(target); 459 460 // The darwin always currently uses the GDB remote debugger plug-in 461 // so even when debugging locally we are debugging remotely! 462 process_sp = target->CreateProcess (listener, "gdb-remote", NULL); 463 464 if (process_sp) 465 { 466 char connect_url[256]; 467 const char *override_hostname = getenv("LLDB_PLATFORM_REMOTE_GDB_SERVER_HOSTNAME"); 468 const char *port_offset_c_str = getenv("LLDB_PLATFORM_REMOTE_GDB_SERVER_PORT_OFFSET"); 469 int port_offset = port_offset_c_str ? ::atoi(port_offset_c_str) : 0; 470 const int connect_url_len = ::snprintf (connect_url, 471 sizeof(connect_url), 472 "connect://%s:%u", 473 override_hostname ? override_hostname : GetHostname (), 474 port + port_offset); 475 assert (connect_url_len < (int)sizeof(connect_url)); 476 error = process_sp->ConnectRemote (NULL, connect_url); 477 if (error.Success()) 478 error = process_sp->Launch(launch_info); 479 else if (debugserver_pid != LLDB_INVALID_PROCESS_ID) 480 m_gdb_client.KillSpawnedProcess(debugserver_pid); 481 } 482 } 483 } 484 } 485 else 486 { 487 error.SetErrorString("not connected to remote gdb server"); 488 } 489 } 490 return process_sp; 491 492 } 493 494 lldb::ProcessSP 495 PlatformRemoteGDBServer::Attach (lldb_private::ProcessAttachInfo &attach_info, 496 Debugger &debugger, 497 Target *target, // Can be NULL, if NULL create a new target, else use existing one 498 Listener &listener, 499 Error &error) 500 { 501 lldb::ProcessSP process_sp; 502 if (IsRemote()) 503 { 504 if (IsConnected()) 505 { 506 lldb::pid_t debugserver_pid = LLDB_INVALID_PROCESS_ID; 507 ArchSpec remote_arch = GetRemoteSystemArchitecture(); 508 llvm::Triple &remote_triple = remote_arch.GetTriple(); 509 uint16_t port = 0; 510 if (remote_triple.getVendor() == llvm::Triple::Apple && remote_triple.getOS() == llvm::Triple::IOS) 511 { 512 // When remote debugging to iOS, we use a USB mux that always talks 513 // to localhost, so we will need the remote debugserver to accept connections 514 // only from localhost, no matter what our current hostname is 515 port = m_gdb_client.LaunchGDBserverAndGetPort(debugserver_pid, "127.0.0.1"); 516 } 517 else 518 { 519 // All other hosts should use their actual hostname 520 port = m_gdb_client.LaunchGDBserverAndGetPort(debugserver_pid, NULL); 521 } 522 523 if (port == 0) 524 { 525 error.SetErrorStringWithFormat ("unable to launch a GDB server on '%s'", GetHostname ()); 526 } 527 else 528 { 529 if (target == NULL) 530 { 531 TargetSP new_target_sp; 532 533 error = debugger.GetTargetList().CreateTarget (debugger, 534 NULL, 535 NULL, 536 false, 537 NULL, 538 new_target_sp); 539 target = new_target_sp.get(); 540 } 541 else 542 error.Clear(); 543 544 if (target && error.Success()) 545 { 546 debugger.GetTargetList().SetSelectedTarget(target); 547 548 // The darwin always currently uses the GDB remote debugger plug-in 549 // so even when debugging locally we are debugging remotely! 550 process_sp = target->CreateProcess (listener, "gdb-remote", NULL); 551 552 if (process_sp) 553 { 554 char connect_url[256]; 555 const char *override_hostname = getenv("LLDB_PLATFORM_REMOTE_GDB_SERVER_HOSTNAME"); 556 const char *port_offset_c_str = getenv("LLDB_PLATFORM_REMOTE_GDB_SERVER_PORT_OFFSET"); 557 int port_offset = port_offset_c_str ? ::atoi(port_offset_c_str) : 0; 558 const int connect_url_len = ::snprintf (connect_url, 559 sizeof(connect_url), 560 "connect://%s:%u", 561 override_hostname ? override_hostname : GetHostname (), 562 port + port_offset); 563 assert (connect_url_len < (int)sizeof(connect_url)); 564 error = process_sp->ConnectRemote (NULL, connect_url); 565 if (error.Success()) 566 error = process_sp->Attach(attach_info); 567 else if (debugserver_pid != LLDB_INVALID_PROCESS_ID) 568 { 569 m_gdb_client.KillSpawnedProcess(debugserver_pid); 570 } 571 } 572 } 573 } 574 } 575 else 576 { 577 error.SetErrorString("not connected to remote gdb server"); 578 } 579 } 580 return process_sp; 581 } 582 583 Error 584 PlatformRemoteGDBServer::MakeDirectory (const char *path, uint32_t mode) 585 { 586 Error error = m_gdb_client.MakeDirectory(path,mode); 587 Log *log = GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM); 588 if (log) 589 log->Printf ("PlatformRemoteGDBServer::MakeDirectory(path='%s', mode=%o) error = %u (%s)", path, mode, error.GetError(), error.AsCString()); 590 return error; 591 } 592 593 594 Error 595 PlatformRemoteGDBServer::GetFilePermissions (const char *path, uint32_t &file_permissions) 596 { 597 Error error = m_gdb_client.GetFilePermissions(path, file_permissions); 598 Log *log = GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM); 599 if (log) 600 log->Printf ("PlatformRemoteGDBServer::GetFilePermissions(path='%s', file_permissions=%o) error = %u (%s)", path, file_permissions, error.GetError(), error.AsCString()); 601 return error; 602 } 603 604 Error 605 PlatformRemoteGDBServer::SetFilePermissions (const char *path, uint32_t file_permissions) 606 { 607 Error error = m_gdb_client.SetFilePermissions(path, file_permissions); 608 Log *log = GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM); 609 if (log) 610 log->Printf ("PlatformRemoteGDBServer::SetFilePermissions(path='%s', file_permissions=%o) error = %u (%s)", path, file_permissions, error.GetError(), error.AsCString()); 611 return error; 612 } 613 614 615 lldb::user_id_t 616 PlatformRemoteGDBServer::OpenFile (const lldb_private::FileSpec& file_spec, 617 uint32_t flags, 618 uint32_t mode, 619 Error &error) 620 { 621 return m_gdb_client.OpenFile (file_spec, flags, mode, error); 622 } 623 624 bool 625 PlatformRemoteGDBServer::CloseFile (lldb::user_id_t fd, Error &error) 626 { 627 return m_gdb_client.CloseFile (fd, error); 628 } 629 630 lldb::user_id_t 631 PlatformRemoteGDBServer::GetFileSize (const lldb_private::FileSpec& file_spec) 632 { 633 return m_gdb_client.GetFileSize(file_spec); 634 } 635 636 uint64_t 637 PlatformRemoteGDBServer::ReadFile (lldb::user_id_t fd, 638 uint64_t offset, 639 void *dst, 640 uint64_t dst_len, 641 Error &error) 642 { 643 return m_gdb_client.ReadFile (fd, offset, dst, dst_len, error); 644 } 645 646 uint64_t 647 PlatformRemoteGDBServer::WriteFile (lldb::user_id_t fd, 648 uint64_t offset, 649 const void* src, 650 uint64_t src_len, 651 Error &error) 652 { 653 return m_gdb_client.WriteFile (fd, offset, src, src_len, error); 654 } 655 656 lldb_private::Error 657 PlatformRemoteGDBServer::PutFile (const lldb_private::FileSpec& source, 658 const lldb_private::FileSpec& destination, 659 uint32_t uid, 660 uint32_t gid) 661 { 662 return Platform::PutFile(source,destination,uid,gid); 663 } 664 665 Error 666 PlatformRemoteGDBServer::CreateSymlink (const char *src, // The name of the link is in src 667 const char *dst) // The symlink points to dst 668 { 669 Error error = m_gdb_client.CreateSymlink (src, dst); 670 Log *log = GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM); 671 if (log) 672 log->Printf ("PlatformRemoteGDBServer::CreateSymlink(src='%s', dst='%s') error = %u (%s)", src, dst, error.GetError(), error.AsCString()); 673 return error; 674 } 675 676 Error 677 PlatformRemoteGDBServer::Unlink (const char *path) 678 { 679 Error error = m_gdb_client.Unlink (path); 680 Log *log = GetLogIfAnyCategoriesSet(LIBLLDB_LOG_PLATFORM); 681 if (log) 682 log->Printf ("PlatformRemoteGDBServer::Unlink(path='%s') error = %u (%s)", path, error.GetError(), error.AsCString()); 683 return error; 684 } 685 686 bool 687 PlatformRemoteGDBServer::GetFileExists (const lldb_private::FileSpec& file_spec) 688 { 689 return m_gdb_client.GetFileExists (file_spec); 690 } 691 692 lldb_private::Error 693 PlatformRemoteGDBServer::RunShellCommand (const char *command, // Shouldn't be NULL 694 const char *working_dir, // Pass NULL to use the current working directory 695 int *status_ptr, // Pass NULL if you don't want the process exit status 696 int *signo_ptr, // Pass NULL if you don't want the signal that caused the process to exit 697 std::string *command_output, // Pass NULL if you don't want the command output 698 uint32_t timeout_sec) // Timeout in seconds to wait for shell program to finish 699 { 700 return m_gdb_client.RunShellCommand (command, working_dir, status_ptr, signo_ptr, command_output, timeout_sec); 701 } 702 703 void 704 PlatformRemoteGDBServer::CalculateTrapHandlerSymbolNames () 705 { 706 m_trap_handlers.push_back (ConstString ("_sigtramp")); 707 } 708