1 //===-- debugserver.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 <sys/socket.h> 11 #include <sys/types.h> 12 #include <errno.h> 13 #include <getopt.h> 14 #include <netinet/in.h> 15 #include <sys/select.h> 16 #include <sys/sysctl.h> 17 #include <string> 18 #include <vector> 19 #include <asl.h> 20 #include <arpa/inet.h> 21 #include <netdb.h> 22 #include <netinet/in.h> 23 #include <netinet/tcp.h> 24 #include <sys/un.h> 25 #include <sys/types.h> 26 27 #include "CFString.h" 28 #include "DNB.h" 29 #include "DNBLog.h" 30 #include "DNBTimer.h" 31 #include "PseudoTerminal.h" 32 #include "RNBContext.h" 33 #include "RNBServices.h" 34 #include "RNBSocket.h" 35 #include "RNBRemote.h" 36 #include "SysSignal.h" 37 38 // Global PID in case we get a signal and need to stop the process... 39 nub_process_t g_pid = INVALID_NUB_PROCESS; 40 41 //---------------------------------------------------------------------- 42 // Run loop modes which determine which run loop function will be called 43 //---------------------------------------------------------------------- 44 typedef enum 45 { 46 eRNBRunLoopModeInvalid = 0, 47 eRNBRunLoopModeGetStartModeFromRemoteProtocol, 48 eRNBRunLoopModeInferiorAttaching, 49 eRNBRunLoopModeInferiorLaunching, 50 eRNBRunLoopModeInferiorExecuting, 51 eRNBRunLoopModePlatformMode, 52 eRNBRunLoopModeExit 53 } RNBRunLoopMode; 54 55 56 //---------------------------------------------------------------------- 57 // Global Variables 58 //---------------------------------------------------------------------- 59 RNBRemoteSP g_remoteSP; 60 static int g_lockdown_opt = 0; 61 static int g_applist_opt = 0; 62 static nub_launch_flavor_t g_launch_flavor = eLaunchFlavorDefault; 63 int g_disable_aslr = 0; 64 65 int g_isatty = 0; 66 67 #define RNBLogSTDOUT(fmt, ...) do { if (g_isatty) { fprintf(stdout, fmt, ## __VA_ARGS__); } else { _DNBLog(0, fmt, ## __VA_ARGS__); } } while (0) 68 #define RNBLogSTDERR(fmt, ...) do { if (g_isatty) { fprintf(stderr, fmt, ## __VA_ARGS__); } else { _DNBLog(0, fmt, ## __VA_ARGS__); } } while (0) 69 70 //---------------------------------------------------------------------- 71 // Get our program path and arguments from the remote connection. 72 // We will need to start up the remote connection without a PID, get the 73 // arguments, wait for the new process to finish launching and hit its 74 // entry point, and then return the run loop mode that should come next. 75 //---------------------------------------------------------------------- 76 RNBRunLoopMode 77 RNBRunLoopGetStartModeFromRemote (RNBRemote* remote) 78 { 79 std::string packet; 80 81 if (remote) 82 { 83 RNBContext& ctx = remote->Context(); 84 uint32_t event_mask = RNBContext::event_read_packet_available | 85 RNBContext::event_read_thread_exiting; 86 87 // Spin waiting to get the A packet. 88 while (1) 89 { 90 DNBLogThreadedIf (LOG_RNB_MAX, "%s ctx.Events().WaitForSetEvents( 0x%08x ) ...",__FUNCTION__, event_mask); 91 nub_event_t set_events = ctx.Events().WaitForSetEvents(event_mask); 92 DNBLogThreadedIf (LOG_RNB_MAX, "%s ctx.Events().WaitForSetEvents( 0x%08x ) => 0x%08x", __FUNCTION__, event_mask, set_events); 93 94 if (set_events & RNBContext::event_read_thread_exiting) 95 { 96 RNBLogSTDERR ("error: packet read thread exited.\n"); 97 return eRNBRunLoopModeExit; 98 } 99 100 if (set_events & RNBContext::event_read_packet_available) 101 { 102 rnb_err_t err = rnb_err; 103 RNBRemote::PacketEnum type; 104 105 err = remote->HandleReceivedPacket (&type); 106 107 // check if we tried to attach to a process 108 if (type == RNBRemote::vattach || type == RNBRemote::vattachwait || type == RNBRemote::vattachorwait) 109 { 110 if (err == rnb_success) 111 { 112 RNBLogSTDOUT ("Attach succeeded, ready to debug.\n"); 113 return eRNBRunLoopModeInferiorExecuting; 114 } 115 else 116 { 117 RNBLogSTDERR ("error: attach failed.\n"); 118 return eRNBRunLoopModeExit; 119 } 120 } 121 122 if (err == rnb_success) 123 { 124 // If we got our arguments we are ready to launch using the arguments 125 // and any environment variables we received. 126 if (type == RNBRemote::set_argv) 127 { 128 return eRNBRunLoopModeInferiorLaunching; 129 } 130 } 131 else if (err == rnb_not_connected) 132 { 133 RNBLogSTDERR ("error: connection lost.\n"); 134 return eRNBRunLoopModeExit; 135 } 136 else 137 { 138 // a catch all for any other gdb remote packets that failed 139 DNBLogThreadedIf (LOG_RNB_MINIMAL, "%s Error getting packet.",__FUNCTION__); 140 continue; 141 } 142 143 DNBLogThreadedIf (LOG_RNB_MINIMAL, "#### %s", __FUNCTION__); 144 } 145 else 146 { 147 DNBLogThreadedIf (LOG_RNB_MINIMAL, "%s Connection closed before getting \"A\" packet.", __FUNCTION__); 148 return eRNBRunLoopModeExit; 149 } 150 } 151 } 152 return eRNBRunLoopModeExit; 153 } 154 155 156 //---------------------------------------------------------------------- 157 // This run loop mode will wait for the process to launch and hit its 158 // entry point. It will currently ignore all events except for the 159 // process state changed event, where it watches for the process stopped 160 // or crash process state. 161 //---------------------------------------------------------------------- 162 RNBRunLoopMode 163 RNBRunLoopLaunchInferior (RNBRemote *remote, const char *stdin_path, const char *stdout_path, const char *stderr_path, bool no_stdio) 164 { 165 RNBContext& ctx = remote->Context(); 166 167 // The Process stuff takes a c array, the RNBContext has a vector... 168 // So make up a c array. 169 170 DNBLogThreadedIf (LOG_RNB_MINIMAL, "%s Launching '%s'...", __FUNCTION__, ctx.ArgumentAtIndex(0)); 171 172 size_t inferior_argc = ctx.ArgumentCount(); 173 // Initialize inferior_argv with inferior_argc + 1 NULLs 174 std::vector<const char *> inferior_argv(inferior_argc + 1, NULL); 175 176 size_t i; 177 for (i = 0; i < inferior_argc; i++) 178 inferior_argv[i] = ctx.ArgumentAtIndex(i); 179 180 // Pass the environment array the same way: 181 182 size_t inferior_envc = ctx.EnvironmentCount(); 183 // Initialize inferior_argv with inferior_argc + 1 NULLs 184 std::vector<const char *> inferior_envp(inferior_envc + 1, NULL); 185 186 for (i = 0; i < inferior_envc; i++) 187 inferior_envp[i] = ctx.EnvironmentAtIndex(i); 188 189 // Our launch type hasn't been set to anything concrete, so we need to 190 // figure our how we are going to launch automatically. 191 192 nub_launch_flavor_t launch_flavor = g_launch_flavor; 193 if (launch_flavor == eLaunchFlavorDefault) 194 { 195 // Our default launch method is posix spawn 196 launch_flavor = eLaunchFlavorPosixSpawn; 197 198 #ifdef WITH_SPRINGBOARD 199 // Check if we have an app bundle, if so launch using SpringBoard. 200 if (strstr(inferior_argv[0], ".app")) 201 { 202 launch_flavor = eLaunchFlavorSpringBoard; 203 } 204 #endif 205 } 206 207 ctx.SetLaunchFlavor(launch_flavor); 208 char resolved_path[PATH_MAX]; 209 210 // If we fail to resolve the path to our executable, then just use what we 211 // were given and hope for the best 212 if ( !DNBResolveExecutablePath (inferior_argv[0], resolved_path, sizeof(resolved_path)) ) 213 ::strncpy(resolved_path, inferior_argv[0], sizeof(resolved_path)); 214 215 char launch_err_str[PATH_MAX]; 216 launch_err_str[0] = '\0'; 217 const char * cwd = (ctx.GetWorkingDirPath() != NULL ? ctx.GetWorkingDirPath() 218 : ctx.GetWorkingDirectory()); 219 nub_process_t pid = DNBProcessLaunch (resolved_path, 220 &inferior_argv[0], 221 &inferior_envp[0], 222 cwd, 223 stdin_path, 224 stdout_path, 225 stderr_path, 226 no_stdio, 227 launch_flavor, 228 g_disable_aslr, 229 launch_err_str, 230 sizeof(launch_err_str)); 231 232 g_pid = pid; 233 234 if (pid == INVALID_NUB_PROCESS && strlen (launch_err_str) > 0) 235 { 236 DNBLogThreaded ("%s DNBProcessLaunch() returned error: '%s'", __FUNCTION__, launch_err_str); 237 ctx.LaunchStatus().SetError(-1, DNBError::Generic); 238 ctx.LaunchStatus().SetErrorString(launch_err_str); 239 } 240 else if (pid == INVALID_NUB_PROCESS) 241 { 242 DNBLogThreaded ("%s DNBProcessLaunch() failed to launch process, unknown failure", __FUNCTION__); 243 ctx.LaunchStatus().SetError(-1, DNBError::Generic); 244 ctx.LaunchStatus().SetErrorString(launch_err_str); 245 } 246 else 247 { 248 ctx.LaunchStatus().Clear(); 249 } 250 251 if (remote->Comm().IsConnected()) 252 { 253 // It we are connected already, the next thing gdb will do is ask 254 // whether the launch succeeded, and if not, whether there is an 255 // error code. So we need to fetch one packet from gdb before we wait 256 // on the stop from the target. 257 258 uint32_t event_mask = RNBContext::event_read_packet_available; 259 nub_event_t set_events = ctx.Events().WaitForSetEvents(event_mask); 260 261 if (set_events & RNBContext::event_read_packet_available) 262 { 263 rnb_err_t err = rnb_err; 264 RNBRemote::PacketEnum type; 265 266 err = remote->HandleReceivedPacket (&type); 267 268 if (err != rnb_success) 269 { 270 DNBLogThreadedIf (LOG_RNB_MINIMAL, "%s Error getting packet.", __FUNCTION__); 271 return eRNBRunLoopModeExit; 272 } 273 if (type != RNBRemote::query_launch_success) 274 { 275 DNBLogThreadedIf (LOG_RNB_MINIMAL, "%s Didn't get the expected qLaunchSuccess packet.", __FUNCTION__); 276 } 277 } 278 } 279 280 while (pid != INVALID_NUB_PROCESS) 281 { 282 // Wait for process to start up and hit entry point 283 DNBLogThreadedIf (LOG_RNB_EVENTS, "%s DNBProcessWaitForEvent (%4.4x, eEventProcessRunningStateChanged | eEventProcessStoppedStateChanged, true, INFINITE)...", __FUNCTION__, pid); 284 nub_event_t set_events = DNBProcessWaitForEvents (pid, eEventProcessRunningStateChanged | eEventProcessStoppedStateChanged, true, NULL); 285 DNBLogThreadedIf (LOG_RNB_EVENTS, "%s DNBProcessWaitForEvent (%4.4x, eEventProcessRunningStateChanged | eEventProcessStoppedStateChanged, true, INFINITE) => 0x%8.8x", __FUNCTION__, pid, set_events); 286 287 if (set_events == 0) 288 { 289 pid = INVALID_NUB_PROCESS; 290 g_pid = pid; 291 } 292 else 293 { 294 if (set_events & (eEventProcessRunningStateChanged | eEventProcessStoppedStateChanged)) 295 { 296 nub_state_t pid_state = DNBProcessGetState (pid); 297 DNBLogThreadedIf (LOG_RNB_EVENTS, "%s process %4.4x state changed (eEventProcessStateChanged): %s", __FUNCTION__, pid, DNBStateAsString(pid_state)); 298 299 switch (pid_state) 300 { 301 default: 302 case eStateInvalid: 303 case eStateUnloaded: 304 case eStateAttaching: 305 case eStateLaunching: 306 case eStateSuspended: 307 break; // Ignore 308 309 case eStateRunning: 310 case eStateStepping: 311 // Still waiting to stop at entry point... 312 break; 313 314 case eStateStopped: 315 case eStateCrashed: 316 ctx.SetProcessID(pid); 317 return eRNBRunLoopModeInferiorExecuting; 318 319 case eStateDetached: 320 case eStateExited: 321 pid = INVALID_NUB_PROCESS; 322 g_pid = pid; 323 return eRNBRunLoopModeExit; 324 } 325 } 326 327 DNBProcessResetEvents(pid, set_events); 328 } 329 } 330 331 return eRNBRunLoopModeExit; 332 } 333 334 335 //---------------------------------------------------------------------- 336 // This run loop mode will wait for the process to launch and hit its 337 // entry point. It will currently ignore all events except for the 338 // process state changed event, where it watches for the process stopped 339 // or crash process state. 340 //---------------------------------------------------------------------- 341 RNBRunLoopMode 342 RNBRunLoopLaunchAttaching (RNBRemote *remote, nub_process_t attach_pid, nub_process_t& pid) 343 { 344 RNBContext& ctx = remote->Context(); 345 346 DNBLogThreadedIf (LOG_RNB_MINIMAL, "%s Attaching to pid %i...", __FUNCTION__, attach_pid); 347 char err_str[1024]; 348 pid = DNBProcessAttach (attach_pid, NULL, err_str, sizeof(err_str)); 349 g_pid = pid; 350 351 if (pid == INVALID_NUB_PROCESS) 352 { 353 ctx.LaunchStatus().SetError(-1, DNBError::Generic); 354 if (err_str[0]) 355 ctx.LaunchStatus().SetErrorString(err_str); 356 return eRNBRunLoopModeExit; 357 } 358 else 359 { 360 ctx.SetProcessID(pid); 361 return eRNBRunLoopModeInferiorExecuting; 362 } 363 } 364 365 //---------------------------------------------------------------------- 366 // Watch for signals: 367 // SIGINT: so we can halt our inferior. (disabled for now) 368 // SIGPIPE: in case our child process dies 369 //---------------------------------------------------------------------- 370 int g_sigint_received = 0; 371 int g_sigpipe_received = 0; 372 void 373 signal_handler(int signo) 374 { 375 DNBLogThreadedIf (LOG_RNB_MINIMAL, "%s (%s)", __FUNCTION__, SysSignal::Name(signo)); 376 377 switch (signo) 378 { 379 case SIGINT: 380 g_sigint_received++; 381 if (g_pid != INVALID_NUB_PROCESS) 382 { 383 // Only send a SIGINT once... 384 if (g_sigint_received == 1) 385 { 386 switch (DNBProcessGetState (g_pid)) 387 { 388 case eStateRunning: 389 case eStateStepping: 390 DNBProcessSignal (g_pid, SIGSTOP); 391 return; 392 default: 393 break; 394 } 395 } 396 } 397 exit (SIGINT); 398 break; 399 400 case SIGPIPE: 401 g_sigpipe_received = 1; 402 break; 403 } 404 } 405 406 // Return the new run loop mode based off of the current process state 407 RNBRunLoopMode 408 HandleProcessStateChange (RNBRemote *remote, bool initialize) 409 { 410 RNBContext& ctx = remote->Context(); 411 nub_process_t pid = ctx.ProcessID(); 412 413 if (pid == INVALID_NUB_PROCESS) 414 { 415 DNBLogThreadedIf (LOG_RNB_MINIMAL, "#### %s error: pid invalid, exiting...", __FUNCTION__); 416 return eRNBRunLoopModeExit; 417 } 418 nub_state_t pid_state = DNBProcessGetState (pid); 419 420 DNBLogThreadedIf (LOG_RNB_MINIMAL, "%s (&remote, initialize=%i) pid_state = %s", __FUNCTION__, (int)initialize, DNBStateAsString (pid_state)); 421 422 switch (pid_state) 423 { 424 case eStateInvalid: 425 case eStateUnloaded: 426 // Something bad happened 427 return eRNBRunLoopModeExit; 428 break; 429 430 case eStateAttaching: 431 case eStateLaunching: 432 return eRNBRunLoopModeInferiorExecuting; 433 434 case eStateSuspended: 435 case eStateCrashed: 436 case eStateStopped: 437 // If we stop due to a signal, so clear the fact that we got a SIGINT 438 // so we can stop ourselves again (but only while our inferior 439 // process is running..) 440 g_sigint_received = 0; 441 if (initialize == false) 442 { 443 // Compare the last stop count to our current notion of a stop count 444 // to make sure we don't notify more than once for a given stop. 445 nub_size_t prev_pid_stop_count = ctx.GetProcessStopCount(); 446 bool pid_stop_count_changed = ctx.SetProcessStopCount(DNBProcessGetStopCount(pid)); 447 if (pid_stop_count_changed) 448 { 449 remote->FlushSTDIO(); 450 451 if (ctx.GetProcessStopCount() == 1) 452 { 453 DNBLogThreadedIf (LOG_RNB_MINIMAL, "%s (&remote, initialize=%i) pid_state = %s pid_stop_count %llu (old %llu)) Notify??? no, first stop...", __FUNCTION__, (int)initialize, DNBStateAsString (pid_state), (uint64_t)ctx.GetProcessStopCount(), (uint64_t)prev_pid_stop_count); 454 } 455 else 456 { 457 458 DNBLogThreadedIf (LOG_RNB_MINIMAL, "%s (&remote, initialize=%i) pid_state = %s pid_stop_count %llu (old %llu)) Notify??? YES!!!", __FUNCTION__, (int)initialize, DNBStateAsString (pid_state), (uint64_t)ctx.GetProcessStopCount(), (uint64_t)prev_pid_stop_count); 459 remote->NotifyThatProcessStopped (); 460 } 461 } 462 else 463 { 464 DNBLogThreadedIf (LOG_RNB_MINIMAL, "%s (&remote, initialize=%i) pid_state = %s pid_stop_count %llu (old %llu)) Notify??? skipping...", __FUNCTION__, (int)initialize, DNBStateAsString (pid_state), (uint64_t)ctx.GetProcessStopCount(), (uint64_t)prev_pid_stop_count); 465 } 466 } 467 return eRNBRunLoopModeInferiorExecuting; 468 469 case eStateStepping: 470 case eStateRunning: 471 return eRNBRunLoopModeInferiorExecuting; 472 473 case eStateExited: 474 remote->HandlePacket_last_signal(NULL); 475 case eStateDetached: 476 return eRNBRunLoopModeExit; 477 478 } 479 480 // Catch all... 481 return eRNBRunLoopModeExit; 482 } 483 // This function handles the case where our inferior program is stopped and 484 // we are waiting for gdb remote protocol packets. When a packet occurs that 485 // makes the inferior run, we need to leave this function with a new state 486 // as the return code. 487 RNBRunLoopMode 488 RNBRunLoopInferiorExecuting (RNBRemote *remote) 489 { 490 DNBLogThreadedIf (LOG_RNB_MINIMAL, "#### %s", __FUNCTION__); 491 RNBContext& ctx = remote->Context(); 492 493 // Init our mode and set 'is_running' based on the current process state 494 RNBRunLoopMode mode = HandleProcessStateChange (remote, true); 495 496 while (ctx.ProcessID() != INVALID_NUB_PROCESS) 497 { 498 499 std::string set_events_str; 500 uint32_t event_mask = ctx.NormalEventBits(); 501 502 if (!ctx.ProcessStateRunning()) 503 { 504 // Clear some bits if we are not running so we don't send any async packets 505 event_mask &= ~RNBContext::event_proc_stdio_available; 506 event_mask &= ~RNBContext::event_proc_profile_data; 507 } 508 509 // We want to make sure we consume all process state changes and have 510 // whomever is notifying us to wait for us to reset the event bit before 511 // continuing. 512 //ctx.Events().SetResetAckMask (RNBContext::event_proc_state_changed); 513 514 DNBLogThreadedIf (LOG_RNB_EVENTS, "%s ctx.Events().WaitForSetEvents(0x%08x) ...",__FUNCTION__, event_mask); 515 nub_event_t set_events = ctx.Events().WaitForSetEvents(event_mask); 516 DNBLogThreadedIf (LOG_RNB_EVENTS, "%s ctx.Events().WaitForSetEvents(0x%08x) => 0x%08x (%s)",__FUNCTION__, event_mask, set_events, ctx.EventsAsString(set_events, set_events_str)); 517 518 if (set_events) 519 { 520 if ((set_events & RNBContext::event_proc_thread_exiting) || 521 (set_events & RNBContext::event_proc_stdio_available)) 522 { 523 remote->FlushSTDIO(); 524 } 525 526 if (set_events & RNBContext::event_proc_profile_data) 527 { 528 remote->SendAsyncProfileData(); 529 } 530 531 if (set_events & RNBContext::event_read_packet_available) 532 { 533 // handleReceivedPacket will take care of resetting the 534 // event_read_packet_available events when there are no more... 535 set_events ^= RNBContext::event_read_packet_available; 536 537 if (ctx.ProcessStateRunning()) 538 { 539 if (remote->HandleAsyncPacket() == rnb_not_connected) 540 { 541 // TODO: connect again? Exit? 542 } 543 } 544 else 545 { 546 if (remote->HandleReceivedPacket() == rnb_not_connected) 547 { 548 // TODO: connect again? Exit? 549 } 550 } 551 } 552 553 if (set_events & RNBContext::event_proc_state_changed) 554 { 555 mode = HandleProcessStateChange (remote, false); 556 ctx.Events().ResetEvents(RNBContext::event_proc_state_changed); 557 set_events ^= RNBContext::event_proc_state_changed; 558 } 559 560 if (set_events & RNBContext::event_proc_thread_exiting) 561 { 562 mode = eRNBRunLoopModeExit; 563 } 564 565 if (set_events & RNBContext::event_read_thread_exiting) 566 { 567 // Out remote packet receiving thread exited, exit for now. 568 if (ctx.HasValidProcessID()) 569 { 570 // TODO: We should add code that will leave the current process 571 // in its current state and listen for another connection... 572 if (ctx.ProcessStateRunning()) 573 { 574 DNBProcessKill (ctx.ProcessID()); 575 } 576 } 577 mode = eRNBRunLoopModeExit; 578 } 579 } 580 581 // Reset all event bits that weren't reset for now... 582 if (set_events != 0) 583 ctx.Events().ResetEvents(set_events); 584 585 if (mode != eRNBRunLoopModeInferiorExecuting) 586 break; 587 } 588 589 return mode; 590 } 591 592 593 RNBRunLoopMode 594 RNBRunLoopPlatform (RNBRemote *remote) 595 { 596 RNBRunLoopMode mode = eRNBRunLoopModePlatformMode; 597 RNBContext& ctx = remote->Context(); 598 599 while (mode == eRNBRunLoopModePlatformMode) 600 { 601 std::string set_events_str; 602 const uint32_t event_mask = RNBContext::event_read_packet_available | 603 RNBContext::event_read_thread_exiting; 604 605 DNBLogThreadedIf (LOG_RNB_EVENTS, "%s ctx.Events().WaitForSetEvents(0x%08x) ...",__FUNCTION__, event_mask); 606 nub_event_t set_events = ctx.Events().WaitForSetEvents(event_mask); 607 DNBLogThreadedIf (LOG_RNB_EVENTS, "%s ctx.Events().WaitForSetEvents(0x%08x) => 0x%08x (%s)",__FUNCTION__, event_mask, set_events, ctx.EventsAsString(set_events, set_events_str)); 608 609 if (set_events) 610 { 611 if (set_events & RNBContext::event_read_packet_available) 612 { 613 if (remote->HandleReceivedPacket() == rnb_not_connected) 614 mode = eRNBRunLoopModeExit; 615 } 616 617 if (set_events & RNBContext::event_read_thread_exiting) 618 { 619 mode = eRNBRunLoopModeExit; 620 } 621 ctx.Events().ResetEvents(set_events); 622 } 623 } 624 return eRNBRunLoopModeExit; 625 } 626 627 //---------------------------------------------------------------------- 628 // Convenience function to set up the remote listening port 629 // Returns 1 for success 0 for failure. 630 //---------------------------------------------------------------------- 631 632 static void 633 PortWasBoundCallback (const void *baton, in_port_t port) 634 { 635 //::printf ("PortWasBoundCallback (baton = %p, port = %u)\n", baton, port); 636 637 const char *unix_socket_name = (const char *)baton; 638 639 if (unix_socket_name && unix_socket_name[0]) 640 { 641 // We were given a unix socket name to use to communicate the port 642 // that we ended up binding to back to our parent process 643 struct sockaddr_un saddr_un; 644 int s = ::socket (AF_UNIX, SOCK_STREAM, 0); 645 if (s < 0) 646 { 647 perror("error: socket (AF_UNIX, SOCK_STREAM, 0)"); 648 exit(1); 649 } 650 651 saddr_un.sun_family = AF_UNIX; 652 ::strncpy(saddr_un.sun_path, unix_socket_name, sizeof(saddr_un.sun_path) - 1); 653 saddr_un.sun_path[sizeof(saddr_un.sun_path) - 1] = '\0'; 654 saddr_un.sun_len = SUN_LEN (&saddr_un); 655 656 if (::connect (s, (struct sockaddr *)&saddr_un, SUN_LEN (&saddr_un)) < 0) 657 { 658 perror("error: connect (socket, &saddr_un, saddr_un_len)"); 659 exit(1); 660 } 661 662 //::printf ("connect () sucess!!\n"); 663 664 665 // We were able to connect to the socket, now write our PID so whomever 666 // launched us will know this process's ID 667 RNBLogSTDOUT ("Listening to port %i...\n", port); 668 669 char pid_str[64]; 670 const int pid_str_len = ::snprintf (pid_str, sizeof(pid_str), "%u", port); 671 const int bytes_sent = ::send (s, pid_str, pid_str_len, 0); 672 673 if (pid_str_len != bytes_sent) 674 { 675 perror("error: send (s, pid_str, pid_str_len, 0)"); 676 exit (1); 677 } 678 679 //::printf ("send () sucess!!\n"); 680 681 // We are done with the socket 682 close (s); 683 } 684 } 685 686 static int 687 StartListening (RNBRemote *remote, int listen_port, const char *unix_socket_name) 688 { 689 if (!remote->Comm().IsConnected()) 690 { 691 if (listen_port != 0) 692 RNBLogSTDOUT ("Listening to port %i...\n", listen_port); 693 if (remote->Comm().Listen(listen_port, PortWasBoundCallback, unix_socket_name) != rnb_success) 694 { 695 RNBLogSTDERR ("Failed to get connection from a remote gdb process.\n"); 696 return 0; 697 } 698 else 699 { 700 remote->StartReadRemoteDataThread(); 701 } 702 } 703 return 1; 704 } 705 706 //---------------------------------------------------------------------- 707 // ASL Logging callback that can be registered with DNBLogSetLogCallback 708 //---------------------------------------------------------------------- 709 void 710 ASLLogCallback(void *baton, uint32_t flags, const char *format, va_list args) 711 { 712 if (format == NULL) 713 return; 714 static aslmsg g_aslmsg = NULL; 715 if (g_aslmsg == NULL) 716 { 717 g_aslmsg = ::asl_new (ASL_TYPE_MSG); 718 char asl_key_sender[PATH_MAX]; 719 snprintf(asl_key_sender, sizeof(asl_key_sender), "com.apple.%s-%g", DEBUGSERVER_PROGRAM_NAME, DEBUGSERVER_VERSION_NUM); 720 ::asl_set (g_aslmsg, ASL_KEY_SENDER, asl_key_sender); 721 } 722 723 int asl_level; 724 if (flags & DNBLOG_FLAG_FATAL) asl_level = ASL_LEVEL_CRIT; 725 else if (flags & DNBLOG_FLAG_ERROR) asl_level = ASL_LEVEL_ERR; 726 else if (flags & DNBLOG_FLAG_WARNING) asl_level = ASL_LEVEL_WARNING; 727 else if (flags & DNBLOG_FLAG_VERBOSE) asl_level = ASL_LEVEL_WARNING; //ASL_LEVEL_INFO; 728 else asl_level = ASL_LEVEL_WARNING; //ASL_LEVEL_DEBUG; 729 730 ::asl_vlog (NULL, g_aslmsg, asl_level, format, args); 731 } 732 733 //---------------------------------------------------------------------- 734 // FILE based Logging callback that can be registered with 735 // DNBLogSetLogCallback 736 //---------------------------------------------------------------------- 737 void 738 FileLogCallback(void *baton, uint32_t flags, const char *format, va_list args) 739 { 740 if (baton == NULL || format == NULL) 741 return; 742 743 ::vfprintf ((FILE *)baton, format, args); 744 ::fprintf ((FILE *)baton, "\n"); 745 } 746 747 748 void 749 show_usage_and_exit (int exit_code) 750 { 751 RNBLogSTDERR ("Usage:\n %s host:port [program-name program-arg1 program-arg2 ...]\n", DEBUGSERVER_PROGRAM_NAME); 752 RNBLogSTDERR (" %s /path/file [program-name program-arg1 program-arg2 ...]\n", DEBUGSERVER_PROGRAM_NAME); 753 RNBLogSTDERR (" %s host:port --attach=<pid>\n", DEBUGSERVER_PROGRAM_NAME); 754 RNBLogSTDERR (" %s /path/file --attach=<pid>\n", DEBUGSERVER_PROGRAM_NAME); 755 RNBLogSTDERR (" %s host:port --attach=<process_name>\n", DEBUGSERVER_PROGRAM_NAME); 756 RNBLogSTDERR (" %s /path/file --attach=<process_name>\n", DEBUGSERVER_PROGRAM_NAME); 757 exit (exit_code); 758 } 759 760 761 //---------------------------------------------------------------------- 762 // option descriptors for getopt_long() 763 //---------------------------------------------------------------------- 764 static struct option g_long_options[] = 765 { 766 { "attach", required_argument, NULL, 'a' }, 767 { "arch", required_argument, NULL, 'A' }, 768 { "debug", no_argument, NULL, 'g' }, 769 { "verbose", no_argument, NULL, 'v' }, 770 { "lockdown", no_argument, &g_lockdown_opt, 1 }, // short option "-k" 771 { "applist", no_argument, &g_applist_opt, 1 }, // short option "-t" 772 { "log-file", required_argument, NULL, 'l' }, 773 { "log-flags", required_argument, NULL, 'f' }, 774 { "launch", required_argument, NULL, 'x' }, // Valid values are "auto", "posix-spawn", "fork-exec", "springboard" (arm only) 775 { "waitfor", required_argument, NULL, 'w' }, // Wait for a process whose name starts with ARG 776 { "waitfor-interval", required_argument, NULL, 'i' }, // Time in usecs to wait between sampling the pid list when waiting for a process by name 777 { "waitfor-duration", required_argument, NULL, 'd' }, // The time in seconds to wait for a process to show up by name 778 { "native-regs", no_argument, NULL, 'r' }, // Specify to use the native registers instead of the gdb defaults for the architecture. 779 { "stdio-path", required_argument, NULL, 's' }, // Set the STDIO path to be used when launching applications (STDIN, STDOUT and STDERR) (only if debugserver launches the process) 780 { "stdin-path", required_argument, NULL, 'I' }, // Set the STDIN path to be used when launching applications (only if debugserver launches the process) 781 { "stdout-path", required_argument, NULL, 'O' }, // Set the STDOUT path to be used when launching applications (only if debugserver launches the process) 782 { "stderr-path", required_argument, NULL, 'E' }, // Set the STDERR path to be used when launching applications (only if debugserver launches the process) 783 { "no-stdio", no_argument, NULL, 'n' }, // Do not set up any stdio (perhaps the program is a GUI program) (only if debugserver launches the process) 784 { "setsid", no_argument, NULL, 'S' }, // call setsid() to make debugserver run in its own session 785 { "disable-aslr", no_argument, NULL, 'D' }, // Use _POSIX_SPAWN_DISABLE_ASLR to avoid shared library randomization 786 { "working-dir", required_argument, NULL, 'W' }, // The working directory that the inferior process should have (only if debugserver launches the process) 787 { "platform", required_argument, NULL, 'p' }, // Put this executable into a remote platform mode 788 { "unix-socket", required_argument, NULL, 'u' }, // If we need to handshake with our parent process, an option will be passed down that specifies a unix socket name to use 789 { NULL, 0, NULL, 0 } 790 }; 791 792 793 //---------------------------------------------------------------------- 794 // main 795 //---------------------------------------------------------------------- 796 int 797 main (int argc, char *argv[]) 798 { 799 const char *argv_sub_zero = argv[0]; // save a copy of argv[0] for error reporting post-launch 800 801 g_isatty = ::isatty (STDIN_FILENO); 802 803 // ::printf ("uid=%u euid=%u gid=%u egid=%u\n", 804 // getuid(), 805 // geteuid(), 806 // getgid(), 807 // getegid()); 808 809 810 // signal (SIGINT, signal_handler); 811 signal (SIGPIPE, signal_handler); 812 signal (SIGHUP, signal_handler); 813 814 g_remoteSP.reset (new RNBRemote ()); 815 816 817 RNBRemote *remote = g_remoteSP.get(); 818 if (remote == NULL) 819 { 820 RNBLogSTDERR ("error: failed to create a remote connection class\n"); 821 return -1; 822 } 823 824 RNBContext& ctx = remote->Context(); 825 826 int i; 827 int attach_pid = INVALID_NUB_PROCESS; 828 829 FILE* log_file = NULL; 830 uint32_t log_flags = 0; 831 // Parse our options 832 int ch; 833 int long_option_index = 0; 834 int debug = 0; 835 std::string compile_options; 836 std::string waitfor_pid_name; // Wait for a process that starts with this name 837 std::string attach_pid_name; 838 std::string arch_name; 839 std::string working_dir; // The new working directory to use for the inferior 840 std::string unix_socket_name; // If we need to handshake with our parent process, an option will be passed down that specifies a unix socket name to use 841 useconds_t waitfor_interval = 1000; // Time in usecs between process lists polls when waiting for a process by name, default 1 msec. 842 useconds_t waitfor_duration = 0; // Time in seconds to wait for a process by name, 0 means wait forever. 843 bool no_stdio = false; 844 845 #if !defined (DNBLOG_ENABLED) 846 compile_options += "(no-logging) "; 847 #endif 848 849 RNBRunLoopMode start_mode = eRNBRunLoopModeExit; 850 851 char short_options[512]; 852 uint32_t short_options_idx = 0; 853 854 // Handle the two case that don't have short options in g_long_options 855 short_options[short_options_idx++] = 'k'; 856 short_options[short_options_idx++] = 't'; 857 858 for (i=0; g_long_options[i].name != NULL; ++i) 859 { 860 if (isalpha(g_long_options[i].val)) 861 { 862 short_options[short_options_idx++] = g_long_options[i].val; 863 switch (g_long_options[i].has_arg) 864 { 865 default: 866 case no_argument: 867 break; 868 869 case optional_argument: 870 short_options[short_options_idx++] = ':'; 871 // Fall through to required_argument case below... 872 case required_argument: 873 short_options[short_options_idx++] = ':'; 874 break; 875 } 876 } 877 } 878 // NULL terminate the short option string. 879 short_options[short_options_idx++] = '\0'; 880 while ((ch = getopt_long(argc, argv, short_options, g_long_options, &long_option_index)) != -1) 881 { 882 DNBLogDebug("option: ch == %c (0x%2.2x) --%s%c%s\n", 883 ch, (uint8_t)ch, 884 g_long_options[long_option_index].name, 885 g_long_options[long_option_index].has_arg ? '=' : ' ', 886 optarg ? optarg : ""); 887 switch (ch) 888 { 889 case 0: // Any optional that auto set themselves will return 0 890 break; 891 892 case 'A': 893 if (optarg && optarg[0]) 894 arch_name.assign(optarg); 895 break; 896 897 case 'a': 898 if (optarg && optarg[0]) 899 { 900 if (isdigit(optarg[0])) 901 { 902 char *end = NULL; 903 attach_pid = strtoul(optarg, &end, 0); 904 if (end == NULL || *end != '\0') 905 { 906 RNBLogSTDERR ("error: invalid pid option '%s'\n", optarg); 907 exit (4); 908 } 909 } 910 else 911 { 912 attach_pid_name = optarg; 913 } 914 start_mode = eRNBRunLoopModeInferiorAttaching; 915 } 916 break; 917 918 // --waitfor=NAME 919 case 'w': 920 if (optarg && optarg[0]) 921 { 922 waitfor_pid_name = optarg; 923 start_mode = eRNBRunLoopModeInferiorAttaching; 924 } 925 break; 926 927 // --waitfor-interval=USEC 928 case 'i': 929 if (optarg && optarg[0]) 930 { 931 char *end = NULL; 932 waitfor_interval = strtoul(optarg, &end, 0); 933 if (end == NULL || *end != '\0') 934 { 935 RNBLogSTDERR ("error: invalid waitfor-interval option value '%s'.\n", optarg); 936 exit (6); 937 } 938 } 939 break; 940 941 // --waitfor-duration=SEC 942 case 'd': 943 if (optarg && optarg[0]) 944 { 945 char *end = NULL; 946 waitfor_duration = strtoul(optarg, &end, 0); 947 if (end == NULL || *end != '\0') 948 { 949 RNBLogSTDERR ("error: invalid waitfor-duration option value '%s'.\n", optarg); 950 exit (7); 951 } 952 } 953 break; 954 955 case 'W': 956 if (optarg && optarg[0]) 957 working_dir.assign(optarg); 958 break; 959 960 case 'x': 961 if (optarg && optarg[0]) 962 { 963 if (strcasecmp(optarg, "auto") == 0) 964 g_launch_flavor = eLaunchFlavorDefault; 965 else if (strcasestr(optarg, "posix") == optarg) 966 g_launch_flavor = eLaunchFlavorPosixSpawn; 967 else if (strcasestr(optarg, "fork") == optarg) 968 g_launch_flavor = eLaunchFlavorForkExec; 969 #ifdef WITH_SPRINGBOARD 970 else if (strcasestr(optarg, "spring") == optarg) 971 g_launch_flavor = eLaunchFlavorSpringBoard; 972 #endif 973 else 974 { 975 RNBLogSTDERR ("error: invalid TYPE for the --launch=TYPE (-x TYPE) option: '%s'\n", optarg); 976 RNBLogSTDERR ("Valid values TYPE are:\n"); 977 RNBLogSTDERR (" auto Auto-detect the best launch method to use.\n"); 978 RNBLogSTDERR (" posix Launch the executable using posix_spawn.\n"); 979 RNBLogSTDERR (" fork Launch the executable using fork and exec.\n"); 980 #ifdef WITH_SPRINGBOARD 981 RNBLogSTDERR (" spring Launch the executable through Springboard.\n"); 982 #endif 983 exit (5); 984 } 985 } 986 break; 987 988 case 'l': // Set Log File 989 if (optarg && optarg[0]) 990 { 991 if (strcasecmp(optarg, "stdout") == 0) 992 log_file = stdout; 993 else if (strcasecmp(optarg, "stderr") == 0) 994 log_file = stderr; 995 else 996 { 997 log_file = fopen(optarg, "w"); 998 if (log_file != NULL) 999 setlinebuf(log_file); 1000 } 1001 1002 if (log_file == NULL) 1003 { 1004 const char *errno_str = strerror(errno); 1005 RNBLogSTDERR ("Failed to open log file '%s' for writing: errno = %i (%s)", optarg, errno, errno_str ? errno_str : "unknown error"); 1006 } 1007 } 1008 break; 1009 1010 case 'f': // Log Flags 1011 if (optarg && optarg[0]) 1012 log_flags = strtoul(optarg, NULL, 0); 1013 break; 1014 1015 case 'g': 1016 debug = 1; 1017 DNBLogSetDebug(debug); 1018 break; 1019 1020 case 't': 1021 g_applist_opt = 1; 1022 break; 1023 1024 case 'k': 1025 g_lockdown_opt = 1; 1026 break; 1027 1028 case 'r': 1029 remote->SetUseNativeRegisters (true); 1030 break; 1031 1032 case 'v': 1033 DNBLogSetVerbose(1); 1034 break; 1035 1036 case 's': 1037 ctx.GetSTDIN().assign(optarg); 1038 ctx.GetSTDOUT().assign(optarg); 1039 ctx.GetSTDERR().assign(optarg); 1040 break; 1041 1042 case 'I': 1043 ctx.GetSTDIN().assign(optarg); 1044 break; 1045 1046 case 'O': 1047 ctx.GetSTDOUT().assign(optarg); 1048 break; 1049 1050 case 'E': 1051 ctx.GetSTDERR().assign(optarg); 1052 break; 1053 1054 case 'n': 1055 no_stdio = true; 1056 break; 1057 1058 case 'S': 1059 // Put debugserver into a new session. Terminals group processes 1060 // into sessions and when a special terminal key sequences 1061 // (like control+c) are typed they can cause signals to go out to 1062 // all processes in a session. Using this --setsid (-S) option 1063 // will cause debugserver to run in its own sessions and be free 1064 // from such issues. 1065 // 1066 // This is useful when debugserver is spawned from a command 1067 // line application that uses debugserver to do the debugging, 1068 // yet that application doesn't want debugserver receiving the 1069 // signals sent to the session (i.e. dying when anyone hits ^C). 1070 setsid(); 1071 break; 1072 case 'D': 1073 g_disable_aslr = 1; 1074 break; 1075 1076 case 'p': 1077 start_mode = eRNBRunLoopModePlatformMode; 1078 break; 1079 1080 case 'u': 1081 unix_socket_name.assign (optarg); 1082 break; 1083 1084 } 1085 } 1086 1087 if (arch_name.empty()) 1088 { 1089 #if defined (__arm__) 1090 arch_name.assign ("arm"); 1091 #endif 1092 } 1093 else 1094 { 1095 DNBSetArchitecture (arch_name.c_str()); 1096 } 1097 1098 // if (arch_name.empty()) 1099 // { 1100 // fprintf(stderr, "error: no architecture was specified\n"); 1101 // exit (8); 1102 // } 1103 // Skip any options we consumed with getopt_long 1104 argc -= optind; 1105 argv += optind; 1106 1107 1108 if (!working_dir.empty()) 1109 { 1110 if (remote->Context().SetWorkingDirectory (working_dir.c_str()) == false) 1111 { 1112 RNBLogSTDERR ("error: working directory doesn't exist '%s'.\n", working_dir.c_str()); 1113 exit (8); 1114 } 1115 } 1116 1117 remote->Initialize(); 1118 1119 // It is ok for us to set NULL as the logfile (this will disable any logging) 1120 1121 if (log_file != NULL) 1122 { 1123 DNBLogSetLogCallback(FileLogCallback, log_file); 1124 // If our log file was set, yet we have no log flags, log everything! 1125 if (log_flags == 0) 1126 log_flags = LOG_ALL | LOG_RNB_ALL; 1127 1128 DNBLogSetLogMask (log_flags); 1129 } 1130 else 1131 { 1132 // Enable DNB logging 1133 DNBLogSetLogCallback(ASLLogCallback, NULL); 1134 DNBLogSetLogMask (log_flags); 1135 1136 } 1137 1138 if (DNBLogEnabled()) 1139 { 1140 for (i=0; i<argc; i++) 1141 DNBLogDebug("argv[%i] = %s", i, argv[i]); 1142 } 1143 1144 // as long as we're dropping remotenub in as a replacement for gdbserver, 1145 // explicitly note that this is not gdbserver. 1146 1147 RNBLogSTDOUT ("%s-%g %sfor %s.\n", 1148 DEBUGSERVER_PROGRAM_NAME, 1149 DEBUGSERVER_VERSION_NUM, 1150 compile_options.c_str(), 1151 RNB_ARCH); 1152 1153 int listen_port = INT32_MAX; 1154 char str[PATH_MAX]; 1155 str[0] = '\0'; 1156 1157 if (g_lockdown_opt == 0 && g_applist_opt == 0) 1158 { 1159 // Make sure we at least have port 1160 if (argc < 1) 1161 { 1162 show_usage_and_exit (1); 1163 } 1164 // accept 'localhost:' prefix on port number 1165 1166 int items_scanned = ::sscanf (argv[0], "%[^:]:%i", str, &listen_port); 1167 if (items_scanned == 2) 1168 { 1169 DNBLogDebug("host = '%s' port = %i", str, listen_port); 1170 } 1171 else if (argv[0][0] == '/') 1172 { 1173 listen_port = INT32_MAX; 1174 strncpy(str, argv[0], sizeof(str)); 1175 } 1176 else 1177 { 1178 show_usage_and_exit (2); 1179 } 1180 1181 // We just used the 'host:port' or the '/path/file' arg... 1182 argc--; 1183 argv++; 1184 1185 } 1186 1187 // If we know we're waiting to attach, we don't need any of this other info. 1188 if (start_mode != eRNBRunLoopModeInferiorAttaching && 1189 start_mode != eRNBRunLoopModePlatformMode) 1190 { 1191 if (argc == 0 || g_lockdown_opt) 1192 { 1193 if (g_lockdown_opt != 0) 1194 { 1195 // Work around for SIGPIPE crashes due to posix_spawn issue. 1196 // We have to close STDOUT and STDERR, else the first time we 1197 // try and do any, we get SIGPIPE and die as posix_spawn is 1198 // doing bad things with our file descriptors at the moment. 1199 int null = open("/dev/null", O_RDWR); 1200 dup2(null, STDOUT_FILENO); 1201 dup2(null, STDERR_FILENO); 1202 } 1203 else if (g_applist_opt != 0) 1204 { 1205 // List all applications we are able to see 1206 std::string applist_plist; 1207 int err = ListApplications(applist_plist, false, false); 1208 if (err == 0) 1209 { 1210 fputs (applist_plist.c_str(), stdout); 1211 } 1212 else 1213 { 1214 RNBLogSTDERR ("error: ListApplications returned error %i\n", err); 1215 } 1216 // Exit with appropriate error if we were asked to list the applications 1217 // with no other args were given (and we weren't trying to do this over 1218 // lockdown) 1219 return err; 1220 } 1221 1222 DNBLogDebug("Get args from remote protocol..."); 1223 start_mode = eRNBRunLoopModeGetStartModeFromRemoteProtocol; 1224 } 1225 else 1226 { 1227 start_mode = eRNBRunLoopModeInferiorLaunching; 1228 // Fill in the argv array in the context from the rest of our args. 1229 // Skip the name of this executable and the port number 1230 for (int i = 0; i < argc; i++) 1231 { 1232 DNBLogDebug("inferior_argv[%i] = '%s'", i, argv[i]); 1233 ctx.PushArgument (argv[i]); 1234 } 1235 } 1236 } 1237 1238 if (start_mode == eRNBRunLoopModeExit) 1239 return -1; 1240 1241 RNBRunLoopMode mode = start_mode; 1242 char err_str[1024] = {'\0'}; 1243 1244 while (mode != eRNBRunLoopModeExit) 1245 { 1246 switch (mode) 1247 { 1248 case eRNBRunLoopModeGetStartModeFromRemoteProtocol: 1249 #ifdef WITH_LOCKDOWN 1250 if (g_lockdown_opt) 1251 { 1252 if (!remote->Comm().IsConnected()) 1253 { 1254 if (remote->Comm().ConnectToService () != rnb_success) 1255 { 1256 RNBLogSTDERR ("Failed to get connection from a remote gdb process.\n"); 1257 mode = eRNBRunLoopModeExit; 1258 } 1259 else if (g_applist_opt != 0) 1260 { 1261 // List all applications we are able to see 1262 std::string applist_plist; 1263 if (ListApplications(applist_plist, false, false) == 0) 1264 { 1265 DNBLogDebug("Task list: %s", applist_plist.c_str()); 1266 1267 remote->Comm().Write(applist_plist.c_str(), applist_plist.size()); 1268 // Issue a read that will never yield any data until the other side 1269 // closes the socket so this process doesn't just exit and cause the 1270 // socket to close prematurely on the other end and cause data loss. 1271 std::string buf; 1272 remote->Comm().Read(buf); 1273 } 1274 remote->Comm().Disconnect(false); 1275 mode = eRNBRunLoopModeExit; 1276 break; 1277 } 1278 else 1279 { 1280 // Start watching for remote packets 1281 remote->StartReadRemoteDataThread(); 1282 } 1283 } 1284 } 1285 else 1286 #endif 1287 if (listen_port != INT32_MAX) 1288 { 1289 if (!StartListening (remote, listen_port, unix_socket_name.c_str())) 1290 mode = eRNBRunLoopModeExit; 1291 } 1292 else if (str[0] == '/') 1293 { 1294 if (remote->Comm().OpenFile (str)) 1295 mode = eRNBRunLoopModeExit; 1296 } 1297 1298 if (mode != eRNBRunLoopModeExit) 1299 { 1300 RNBLogSTDOUT ("Got a connection, waiting for process information for launching or attaching.\n"); 1301 1302 mode = RNBRunLoopGetStartModeFromRemote (remote); 1303 } 1304 break; 1305 1306 case eRNBRunLoopModeInferiorAttaching: 1307 if (!waitfor_pid_name.empty()) 1308 { 1309 // Set our end wait time if we are using a waitfor-duration 1310 // option that may have been specified 1311 struct timespec attach_timeout_abstime, *timeout_ptr = NULL; 1312 if (waitfor_duration != 0) 1313 { 1314 DNBTimer::OffsetTimeOfDay(&attach_timeout_abstime, waitfor_duration, 0); 1315 timeout_ptr = &attach_timeout_abstime; 1316 } 1317 nub_launch_flavor_t launch_flavor = g_launch_flavor; 1318 if (launch_flavor == eLaunchFlavorDefault) 1319 { 1320 // Our default launch method is posix spawn 1321 launch_flavor = eLaunchFlavorPosixSpawn; 1322 1323 #ifdef WITH_SPRINGBOARD 1324 // Check if we have an app bundle, if so launch using SpringBoard. 1325 if (waitfor_pid_name.find (".app") != std::string::npos) 1326 { 1327 launch_flavor = eLaunchFlavorSpringBoard; 1328 } 1329 #endif 1330 } 1331 1332 ctx.SetLaunchFlavor(launch_flavor); 1333 bool ignore_existing = false; 1334 RNBLogSTDOUT ("Waiting to attach to process %s...\n", waitfor_pid_name.c_str()); 1335 nub_process_t pid = DNBProcessAttachWait (waitfor_pid_name.c_str(), launch_flavor, ignore_existing, timeout_ptr, waitfor_interval, err_str, sizeof(err_str)); 1336 g_pid = pid; 1337 1338 if (pid == INVALID_NUB_PROCESS) 1339 { 1340 ctx.LaunchStatus().SetError(-1, DNBError::Generic); 1341 if (err_str[0]) 1342 ctx.LaunchStatus().SetErrorString(err_str); 1343 RNBLogSTDERR ("error: failed to attach to process named: \"%s\" %s\n", waitfor_pid_name.c_str(), err_str); 1344 mode = eRNBRunLoopModeExit; 1345 } 1346 else 1347 { 1348 ctx.SetProcessID(pid); 1349 mode = eRNBRunLoopModeInferiorExecuting; 1350 } 1351 } 1352 else if (attach_pid != INVALID_NUB_PROCESS) 1353 { 1354 1355 RNBLogSTDOUT ("Attaching to process %i...\n", attach_pid); 1356 nub_process_t attached_pid; 1357 mode = RNBRunLoopLaunchAttaching (remote, attach_pid, attached_pid); 1358 if (mode != eRNBRunLoopModeInferiorExecuting) 1359 { 1360 const char *error_str = remote->Context().LaunchStatus().AsString(); 1361 RNBLogSTDERR ("error: failed to attach process %i: %s\n", attach_pid, error_str ? error_str : "unknown error."); 1362 mode = eRNBRunLoopModeExit; 1363 } 1364 } 1365 else if (!attach_pid_name.empty ()) 1366 { 1367 struct timespec attach_timeout_abstime, *timeout_ptr = NULL; 1368 if (waitfor_duration != 0) 1369 { 1370 DNBTimer::OffsetTimeOfDay(&attach_timeout_abstime, waitfor_duration, 0); 1371 timeout_ptr = &attach_timeout_abstime; 1372 } 1373 1374 RNBLogSTDOUT ("Attaching to process %s...\n", attach_pid_name.c_str()); 1375 nub_process_t pid = DNBProcessAttachByName (attach_pid_name.c_str(), timeout_ptr, err_str, sizeof(err_str)); 1376 g_pid = pid; 1377 if (pid == INVALID_NUB_PROCESS) 1378 { 1379 ctx.LaunchStatus().SetError(-1, DNBError::Generic); 1380 if (err_str[0]) 1381 ctx.LaunchStatus().SetErrorString(err_str); 1382 RNBLogSTDERR ("error: failed to attach to process named: \"%s\" %s\n", waitfor_pid_name.c_str(), err_str); 1383 mode = eRNBRunLoopModeExit; 1384 } 1385 else 1386 { 1387 ctx.SetProcessID(pid); 1388 mode = eRNBRunLoopModeInferiorExecuting; 1389 } 1390 1391 } 1392 else 1393 { 1394 RNBLogSTDERR ("error: asked to attach with empty name and invalid PID.\n"); 1395 mode = eRNBRunLoopModeExit; 1396 } 1397 1398 if (mode != eRNBRunLoopModeExit) 1399 { 1400 if (listen_port != INT32_MAX) 1401 { 1402 if (!StartListening (remote, listen_port, unix_socket_name.c_str())) 1403 mode = eRNBRunLoopModeExit; 1404 } 1405 else if (str[0] == '/') 1406 { 1407 if (remote->Comm().OpenFile (str)) 1408 mode = eRNBRunLoopModeExit; 1409 } 1410 if (mode != eRNBRunLoopModeExit) 1411 RNBLogSTDOUT ("Waiting for debugger instructions for process %d.\n", attach_pid); 1412 } 1413 break; 1414 1415 case eRNBRunLoopModeInferiorLaunching: 1416 { 1417 mode = RNBRunLoopLaunchInferior (remote, 1418 ctx.GetSTDINPath(), 1419 ctx.GetSTDOUTPath(), 1420 ctx.GetSTDERRPath(), 1421 no_stdio); 1422 1423 if (mode == eRNBRunLoopModeInferiorExecuting) 1424 { 1425 if (listen_port != INT32_MAX) 1426 { 1427 if (!StartListening (remote, listen_port, unix_socket_name.c_str())) 1428 mode = eRNBRunLoopModeExit; 1429 } 1430 else if (str[0] == '/') 1431 { 1432 if (remote->Comm().OpenFile (str)) 1433 mode = eRNBRunLoopModeExit; 1434 } 1435 1436 if (mode != eRNBRunLoopModeExit) 1437 RNBLogSTDOUT ("Got a connection, launched process %s.\n", argv_sub_zero); 1438 } 1439 else 1440 { 1441 const char *error_str = remote->Context().LaunchStatus().AsString(); 1442 RNBLogSTDERR ("error: failed to launch process %s: %s\n", argv_sub_zero, error_str ? error_str : "unknown error."); 1443 } 1444 } 1445 break; 1446 1447 case eRNBRunLoopModeInferiorExecuting: 1448 mode = RNBRunLoopInferiorExecuting(remote); 1449 break; 1450 1451 case eRNBRunLoopModePlatformMode: 1452 if (listen_port != INT32_MAX) 1453 { 1454 if (!StartListening (remote, listen_port, unix_socket_name.c_str())) 1455 mode = eRNBRunLoopModeExit; 1456 } 1457 else if (str[0] == '/') 1458 { 1459 if (remote->Comm().OpenFile (str)) 1460 mode = eRNBRunLoopModeExit; 1461 } 1462 1463 if (mode != eRNBRunLoopModeExit) 1464 mode = RNBRunLoopPlatform (remote); 1465 break; 1466 1467 default: 1468 mode = eRNBRunLoopModeExit; 1469 case eRNBRunLoopModeExit: 1470 break; 1471 } 1472 } 1473 1474 remote->StopReadRemoteDataThread (); 1475 remote->Context().SetProcessID(INVALID_NUB_PROCESS); 1476 RNBLogSTDOUT ("Exiting.\n"); 1477 1478 return 0; 1479 } 1480