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 DNBLog ("debugserver's event read thread is exiting, killing the inferior process."); 575 DNBProcessKill (ctx.ProcessID()); 576 } 577 } 578 mode = eRNBRunLoopModeExit; 579 } 580 } 581 582 // Reset all event bits that weren't reset for now... 583 if (set_events != 0) 584 ctx.Events().ResetEvents(set_events); 585 586 if (mode != eRNBRunLoopModeInferiorExecuting) 587 break; 588 } 589 590 return mode; 591 } 592 593 594 RNBRunLoopMode 595 RNBRunLoopPlatform (RNBRemote *remote) 596 { 597 RNBRunLoopMode mode = eRNBRunLoopModePlatformMode; 598 RNBContext& ctx = remote->Context(); 599 600 while (mode == eRNBRunLoopModePlatformMode) 601 { 602 std::string set_events_str; 603 const uint32_t event_mask = RNBContext::event_read_packet_available | 604 RNBContext::event_read_thread_exiting; 605 606 DNBLogThreadedIf (LOG_RNB_EVENTS, "%s ctx.Events().WaitForSetEvents(0x%08x) ...",__FUNCTION__, event_mask); 607 nub_event_t set_events = ctx.Events().WaitForSetEvents(event_mask); 608 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)); 609 610 if (set_events) 611 { 612 if (set_events & RNBContext::event_read_packet_available) 613 { 614 if (remote->HandleReceivedPacket() == rnb_not_connected) 615 mode = eRNBRunLoopModeExit; 616 } 617 618 if (set_events & RNBContext::event_read_thread_exiting) 619 { 620 mode = eRNBRunLoopModeExit; 621 } 622 ctx.Events().ResetEvents(set_events); 623 } 624 } 625 return eRNBRunLoopModeExit; 626 } 627 628 //---------------------------------------------------------------------- 629 // Convenience function to set up the remote listening port 630 // Returns 1 for success 0 for failure. 631 //---------------------------------------------------------------------- 632 633 static void 634 PortWasBoundCallback (const void *baton, in_port_t port) 635 { 636 //::printf ("PortWasBoundCallback (baton = %p, port = %u)\n", baton, port); 637 638 const char *unix_socket_name = (const char *)baton; 639 640 if (unix_socket_name && unix_socket_name[0]) 641 { 642 // We were given a unix socket name to use to communicate the port 643 // that we ended up binding to back to our parent process 644 struct sockaddr_un saddr_un; 645 int s = ::socket (AF_UNIX, SOCK_STREAM, 0); 646 if (s < 0) 647 { 648 perror("error: socket (AF_UNIX, SOCK_STREAM, 0)"); 649 exit(1); 650 } 651 652 saddr_un.sun_family = AF_UNIX; 653 ::strncpy(saddr_un.sun_path, unix_socket_name, sizeof(saddr_un.sun_path) - 1); 654 saddr_un.sun_path[sizeof(saddr_un.sun_path) - 1] = '\0'; 655 saddr_un.sun_len = SUN_LEN (&saddr_un); 656 657 if (::connect (s, (struct sockaddr *)&saddr_un, SUN_LEN (&saddr_un)) < 0) 658 { 659 perror("error: connect (socket, &saddr_un, saddr_un_len)"); 660 exit(1); 661 } 662 663 //::printf ("connect () sucess!!\n"); 664 665 666 // We were able to connect to the socket, now write our PID so whomever 667 // launched us will know this process's ID 668 RNBLogSTDOUT ("Listening to port %i...\n", port); 669 670 char pid_str[64]; 671 const int pid_str_len = ::snprintf (pid_str, sizeof(pid_str), "%u", port); 672 const int bytes_sent = ::send (s, pid_str, pid_str_len, 0); 673 674 if (pid_str_len != bytes_sent) 675 { 676 perror("error: send (s, pid_str, pid_str_len, 0)"); 677 exit (1); 678 } 679 680 //::printf ("send () sucess!!\n"); 681 682 // We are done with the socket 683 close (s); 684 } 685 } 686 687 static int 688 StartListening (RNBRemote *remote, const char *listen_host, int listen_port, const char *unix_socket_name) 689 { 690 if (!remote->Comm().IsConnected()) 691 { 692 if (listen_port != 0) 693 RNBLogSTDOUT ("Listening to port %i for a connection from %s...\n", listen_port, listen_host ? listen_host : "localhost"); 694 if (remote->Comm().Listen(listen_host, listen_port, PortWasBoundCallback, unix_socket_name) != rnb_success) 695 { 696 RNBLogSTDERR ("Failed to get connection from a remote gdb process.\n"); 697 return 0; 698 } 699 else 700 { 701 remote->StartReadRemoteDataThread(); 702 } 703 } 704 return 1; 705 } 706 707 //---------------------------------------------------------------------- 708 // ASL Logging callback that can be registered with DNBLogSetLogCallback 709 //---------------------------------------------------------------------- 710 void 711 ASLLogCallback(void *baton, uint32_t flags, const char *format, va_list args) 712 { 713 if (format == NULL) 714 return; 715 static aslmsg g_aslmsg = NULL; 716 if (g_aslmsg == NULL) 717 { 718 g_aslmsg = ::asl_new (ASL_TYPE_MSG); 719 char asl_key_sender[PATH_MAX]; 720 snprintf(asl_key_sender, sizeof(asl_key_sender), "com.apple.%s-%g", DEBUGSERVER_PROGRAM_NAME, DEBUGSERVER_VERSION_NUM); 721 ::asl_set (g_aslmsg, ASL_KEY_SENDER, asl_key_sender); 722 } 723 724 int asl_level; 725 if (flags & DNBLOG_FLAG_FATAL) asl_level = ASL_LEVEL_CRIT; 726 else if (flags & DNBLOG_FLAG_ERROR) asl_level = ASL_LEVEL_ERR; 727 else if (flags & DNBLOG_FLAG_WARNING) asl_level = ASL_LEVEL_WARNING; 728 else if (flags & DNBLOG_FLAG_VERBOSE) asl_level = ASL_LEVEL_WARNING; //ASL_LEVEL_INFO; 729 else asl_level = ASL_LEVEL_WARNING; //ASL_LEVEL_DEBUG; 730 731 ::asl_vlog (NULL, g_aslmsg, asl_level, format, args); 732 } 733 734 //---------------------------------------------------------------------- 735 // FILE based Logging callback that can be registered with 736 // DNBLogSetLogCallback 737 //---------------------------------------------------------------------- 738 void 739 FileLogCallback(void *baton, uint32_t flags, const char *format, va_list args) 740 { 741 if (baton == NULL || format == NULL) 742 return; 743 744 ::vfprintf ((FILE *)baton, format, args); 745 ::fprintf ((FILE *)baton, "\n"); 746 } 747 748 749 void 750 show_usage_and_exit (int exit_code) 751 { 752 RNBLogSTDERR ("Usage:\n %s host:port [program-name program-arg1 program-arg2 ...]\n", DEBUGSERVER_PROGRAM_NAME); 753 RNBLogSTDERR (" %s /path/file [program-name program-arg1 program-arg2 ...]\n", DEBUGSERVER_PROGRAM_NAME); 754 RNBLogSTDERR (" %s host:port --attach=<pid>\n", DEBUGSERVER_PROGRAM_NAME); 755 RNBLogSTDERR (" %s /path/file --attach=<pid>\n", DEBUGSERVER_PROGRAM_NAME); 756 RNBLogSTDERR (" %s host:port --attach=<process_name>\n", DEBUGSERVER_PROGRAM_NAME); 757 RNBLogSTDERR (" %s /path/file --attach=<process_name>\n", DEBUGSERVER_PROGRAM_NAME); 758 exit (exit_code); 759 } 760 761 762 //---------------------------------------------------------------------- 763 // option descriptors for getopt_long_only() 764 //---------------------------------------------------------------------- 765 static struct option g_long_options[] = 766 { 767 { "attach", required_argument, NULL, 'a' }, 768 { "arch", required_argument, NULL, 'A' }, 769 { "debug", no_argument, NULL, 'g' }, 770 { "verbose", no_argument, NULL, 'v' }, 771 { "lockdown", no_argument, &g_lockdown_opt, 1 }, // short option "-k" 772 { "applist", no_argument, &g_applist_opt, 1 }, // short option "-t" 773 { "log-file", required_argument, NULL, 'l' }, 774 { "log-flags", required_argument, NULL, 'f' }, 775 { "launch", required_argument, NULL, 'x' }, // Valid values are "auto", "posix-spawn", "fork-exec", "springboard" (arm only) 776 { "waitfor", required_argument, NULL, 'w' }, // Wait for a process whose name starts with ARG 777 { "waitfor-interval", required_argument, NULL, 'i' }, // Time in usecs to wait between sampling the pid list when waiting for a process by name 778 { "waitfor-duration", required_argument, NULL, 'd' }, // The time in seconds to wait for a process to show up by name 779 { "native-regs", no_argument, NULL, 'r' }, // Specify to use the native registers instead of the gdb defaults for the architecture. 780 { "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) 781 { "stdin-path", required_argument, NULL, 'I' }, // Set the STDIN path to be used when launching applications (only if debugserver launches the process) 782 { "stdout-path", required_argument, NULL, 'O' }, // Set the STDOUT path to be used when launching applications (only if debugserver launches the process) 783 { "stderr-path", required_argument, NULL, 'E' }, // Set the STDERR path to be used when launching applications (only if debugserver launches the process) 784 { "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) 785 { "setsid", no_argument, NULL, 'S' }, // call setsid() to make debugserver run in its own session 786 { "disable-aslr", no_argument, NULL, 'D' }, // Use _POSIX_SPAWN_DISABLE_ASLR to avoid shared library randomization 787 { "working-dir", required_argument, NULL, 'W' }, // The working directory that the inferior process should have (only if debugserver launches the process) 788 { "platform", required_argument, NULL, 'p' }, // Put this executable into a remote platform mode 789 { "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 790 { NULL, 0, NULL, 0 } 791 }; 792 793 794 //---------------------------------------------------------------------- 795 // main 796 //---------------------------------------------------------------------- 797 int 798 main (int argc, char *argv[]) 799 { 800 const char *argv_sub_zero = argv[0]; // save a copy of argv[0] for error reporting post-launch 801 802 g_isatty = ::isatty (STDIN_FILENO); 803 804 // ::printf ("uid=%u euid=%u gid=%u egid=%u\n", 805 // getuid(), 806 // geteuid(), 807 // getgid(), 808 // getegid()); 809 810 811 // signal (SIGINT, signal_handler); 812 signal (SIGPIPE, signal_handler); 813 signal (SIGHUP, signal_handler); 814 815 g_remoteSP.reset (new RNBRemote ()); 816 817 818 RNBRemote *remote = g_remoteSP.get(); 819 if (remote == NULL) 820 { 821 RNBLogSTDERR ("error: failed to create a remote connection class\n"); 822 return -1; 823 } 824 825 RNBContext& ctx = remote->Context(); 826 827 int i; 828 int attach_pid = INVALID_NUB_PROCESS; 829 830 FILE* log_file = NULL; 831 uint32_t log_flags = 0; 832 // Parse our options 833 int ch; 834 int long_option_index = 0; 835 int debug = 0; 836 std::string compile_options; 837 std::string waitfor_pid_name; // Wait for a process that starts with this name 838 std::string attach_pid_name; 839 std::string arch_name; 840 std::string working_dir; // The new working directory to use for the inferior 841 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 842 useconds_t waitfor_interval = 1000; // Time in usecs between process lists polls when waiting for a process by name, default 1 msec. 843 useconds_t waitfor_duration = 0; // Time in seconds to wait for a process by name, 0 means wait forever. 844 bool no_stdio = false; 845 846 #if !defined (DNBLOG_ENABLED) 847 compile_options += "(no-logging) "; 848 #endif 849 850 RNBRunLoopMode start_mode = eRNBRunLoopModeExit; 851 852 char short_options[512]; 853 uint32_t short_options_idx = 0; 854 855 // Handle the two case that don't have short options in g_long_options 856 short_options[short_options_idx++] = 'k'; 857 short_options[short_options_idx++] = 't'; 858 859 for (i=0; g_long_options[i].name != NULL; ++i) 860 { 861 if (isalpha(g_long_options[i].val)) 862 { 863 short_options[short_options_idx++] = g_long_options[i].val; 864 switch (g_long_options[i].has_arg) 865 { 866 default: 867 case no_argument: 868 break; 869 870 case optional_argument: 871 short_options[short_options_idx++] = ':'; 872 // Fall through to required_argument case below... 873 case required_argument: 874 short_options[short_options_idx++] = ':'; 875 break; 876 } 877 } 878 } 879 // NULL terminate the short option string. 880 short_options[short_options_idx++] = '\0'; 881 while ((ch = getopt_long_only(argc, argv, short_options, g_long_options, &long_option_index)) != -1) 882 { 883 DNBLogDebug("option: ch == %c (0x%2.2x) --%s%c%s\n", 884 ch, (uint8_t)ch, 885 g_long_options[long_option_index].name, 886 g_long_options[long_option_index].has_arg ? '=' : ' ', 887 optarg ? optarg : ""); 888 switch (ch) 889 { 890 case 0: // Any optional that auto set themselves will return 0 891 break; 892 893 case 'A': 894 if (optarg && optarg[0]) 895 arch_name.assign(optarg); 896 break; 897 898 case 'a': 899 if (optarg && optarg[0]) 900 { 901 if (isdigit(optarg[0])) 902 { 903 char *end = NULL; 904 attach_pid = strtoul(optarg, &end, 0); 905 if (end == NULL || *end != '\0') 906 { 907 RNBLogSTDERR ("error: invalid pid option '%s'\n", optarg); 908 exit (4); 909 } 910 } 911 else 912 { 913 attach_pid_name = optarg; 914 } 915 start_mode = eRNBRunLoopModeInferiorAttaching; 916 } 917 break; 918 919 // --waitfor=NAME 920 case 'w': 921 if (optarg && optarg[0]) 922 { 923 waitfor_pid_name = optarg; 924 start_mode = eRNBRunLoopModeInferiorAttaching; 925 } 926 break; 927 928 // --waitfor-interval=USEC 929 case 'i': 930 if (optarg && optarg[0]) 931 { 932 char *end = NULL; 933 waitfor_interval = strtoul(optarg, &end, 0); 934 if (end == NULL || *end != '\0') 935 { 936 RNBLogSTDERR ("error: invalid waitfor-interval option value '%s'.\n", optarg); 937 exit (6); 938 } 939 } 940 break; 941 942 // --waitfor-duration=SEC 943 case 'd': 944 if (optarg && optarg[0]) 945 { 946 char *end = NULL; 947 waitfor_duration = strtoul(optarg, &end, 0); 948 if (end == NULL || *end != '\0') 949 { 950 RNBLogSTDERR ("error: invalid waitfor-duration option value '%s'.\n", optarg); 951 exit (7); 952 } 953 } 954 break; 955 956 case 'W': 957 if (optarg && optarg[0]) 958 working_dir.assign(optarg); 959 break; 960 961 case 'x': 962 if (optarg && optarg[0]) 963 { 964 if (strcasecmp(optarg, "auto") == 0) 965 g_launch_flavor = eLaunchFlavorDefault; 966 else if (strcasestr(optarg, "posix") == optarg) 967 g_launch_flavor = eLaunchFlavorPosixSpawn; 968 else if (strcasestr(optarg, "fork") == optarg) 969 g_launch_flavor = eLaunchFlavorForkExec; 970 #ifdef WITH_SPRINGBOARD 971 else if (strcasestr(optarg, "spring") == optarg) 972 g_launch_flavor = eLaunchFlavorSpringBoard; 973 #endif 974 else 975 { 976 RNBLogSTDERR ("error: invalid TYPE for the --launch=TYPE (-x TYPE) option: '%s'\n", optarg); 977 RNBLogSTDERR ("Valid values TYPE are:\n"); 978 RNBLogSTDERR (" auto Auto-detect the best launch method to use.\n"); 979 RNBLogSTDERR (" posix Launch the executable using posix_spawn.\n"); 980 RNBLogSTDERR (" fork Launch the executable using fork and exec.\n"); 981 #ifdef WITH_SPRINGBOARD 982 RNBLogSTDERR (" spring Launch the executable through Springboard.\n"); 983 #endif 984 exit (5); 985 } 986 } 987 break; 988 989 case 'l': // Set Log File 990 if (optarg && optarg[0]) 991 { 992 if (strcasecmp(optarg, "stdout") == 0) 993 log_file = stdout; 994 else if (strcasecmp(optarg, "stderr") == 0) 995 log_file = stderr; 996 else 997 { 998 log_file = fopen(optarg, "w"); 999 if (log_file != NULL) 1000 setlinebuf(log_file); 1001 } 1002 1003 if (log_file == NULL) 1004 { 1005 const char *errno_str = strerror(errno); 1006 RNBLogSTDERR ("Failed to open log file '%s' for writing: errno = %i (%s)", optarg, errno, errno_str ? errno_str : "unknown error"); 1007 } 1008 } 1009 break; 1010 1011 case 'f': // Log Flags 1012 if (optarg && optarg[0]) 1013 log_flags = strtoul(optarg, NULL, 0); 1014 break; 1015 1016 case 'g': 1017 debug = 1; 1018 DNBLogSetDebug(debug); 1019 break; 1020 1021 case 't': 1022 g_applist_opt = 1; 1023 break; 1024 1025 case 'k': 1026 g_lockdown_opt = 1; 1027 break; 1028 1029 case 'r': 1030 remote->SetUseNativeRegisters (true); 1031 break; 1032 1033 case 'v': 1034 DNBLogSetVerbose(1); 1035 break; 1036 1037 case 's': 1038 ctx.GetSTDIN().assign(optarg); 1039 ctx.GetSTDOUT().assign(optarg); 1040 ctx.GetSTDERR().assign(optarg); 1041 break; 1042 1043 case 'I': 1044 ctx.GetSTDIN().assign(optarg); 1045 break; 1046 1047 case 'O': 1048 ctx.GetSTDOUT().assign(optarg); 1049 break; 1050 1051 case 'E': 1052 ctx.GetSTDERR().assign(optarg); 1053 break; 1054 1055 case 'n': 1056 no_stdio = true; 1057 break; 1058 1059 case 'S': 1060 // Put debugserver into a new session. Terminals group processes 1061 // into sessions and when a special terminal key sequences 1062 // (like control+c) are typed they can cause signals to go out to 1063 // all processes in a session. Using this --setsid (-S) option 1064 // will cause debugserver to run in its own sessions and be free 1065 // from such issues. 1066 // 1067 // This is useful when debugserver is spawned from a command 1068 // line application that uses debugserver to do the debugging, 1069 // yet that application doesn't want debugserver receiving the 1070 // signals sent to the session (i.e. dying when anyone hits ^C). 1071 setsid(); 1072 break; 1073 case 'D': 1074 g_disable_aslr = 1; 1075 break; 1076 1077 case 'p': 1078 start_mode = eRNBRunLoopModePlatformMode; 1079 break; 1080 1081 case 'u': 1082 unix_socket_name.assign (optarg); 1083 break; 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_only 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 std::string listen_host; 1154 int listen_port = INT32_MAX; 1155 char str[PATH_MAX]; 1156 str[0] = '\0'; 1157 1158 if (g_lockdown_opt == 0 && g_applist_opt == 0) 1159 { 1160 // Make sure we at least have port 1161 if (argc < 1) 1162 { 1163 show_usage_and_exit (1); 1164 } 1165 // accept 'localhost:' prefix on port number 1166 1167 int items_scanned = ::sscanf (argv[0], "%[^:]:%i", str, &listen_port); 1168 if (items_scanned == 2) 1169 { 1170 listen_host = str; 1171 DNBLogDebug("host = '%s' port = %i", listen_host.c_str(), listen_port); 1172 } 1173 else 1174 { 1175 // No hostname means "localhost" 1176 int items_scanned = ::sscanf (argv[0], "%i", &listen_port); 1177 if (items_scanned == 1) 1178 { 1179 listen_host = "localhost"; 1180 DNBLogDebug("host = '%s' port = %i", listen_host.c_str(), listen_port); 1181 } 1182 else if (argv[0][0] == '/') 1183 { 1184 listen_port = INT32_MAX; 1185 strncpy(str, argv[0], sizeof(str)); 1186 } 1187 else 1188 { 1189 show_usage_and_exit (2); 1190 } 1191 } 1192 1193 // We just used the 'host:port' or the '/path/file' arg... 1194 argc--; 1195 argv++; 1196 1197 } 1198 1199 // If we know we're waiting to attach, we don't need any of this other info. 1200 if (start_mode != eRNBRunLoopModeInferiorAttaching && 1201 start_mode != eRNBRunLoopModePlatformMode) 1202 { 1203 if (argc == 0 || g_lockdown_opt) 1204 { 1205 if (g_lockdown_opt != 0) 1206 { 1207 // Work around for SIGPIPE crashes due to posix_spawn issue. 1208 // We have to close STDOUT and STDERR, else the first time we 1209 // try and do any, we get SIGPIPE and die as posix_spawn is 1210 // doing bad things with our file descriptors at the moment. 1211 int null = open("/dev/null", O_RDWR); 1212 dup2(null, STDOUT_FILENO); 1213 dup2(null, STDERR_FILENO); 1214 } 1215 else if (g_applist_opt != 0) 1216 { 1217 // List all applications we are able to see 1218 std::string applist_plist; 1219 int err = ListApplications(applist_plist, false, false); 1220 if (err == 0) 1221 { 1222 fputs (applist_plist.c_str(), stdout); 1223 } 1224 else 1225 { 1226 RNBLogSTDERR ("error: ListApplications returned error %i\n", err); 1227 } 1228 // Exit with appropriate error if we were asked to list the applications 1229 // with no other args were given (and we weren't trying to do this over 1230 // lockdown) 1231 return err; 1232 } 1233 1234 DNBLogDebug("Get args from remote protocol..."); 1235 start_mode = eRNBRunLoopModeGetStartModeFromRemoteProtocol; 1236 } 1237 else 1238 { 1239 start_mode = eRNBRunLoopModeInferiorLaunching; 1240 // Fill in the argv array in the context from the rest of our args. 1241 // Skip the name of this executable and the port number 1242 for (int i = 0; i < argc; i++) 1243 { 1244 DNBLogDebug("inferior_argv[%i] = '%s'", i, argv[i]); 1245 ctx.PushArgument (argv[i]); 1246 } 1247 } 1248 } 1249 1250 if (start_mode == eRNBRunLoopModeExit) 1251 return -1; 1252 1253 RNBRunLoopMode mode = start_mode; 1254 char err_str[1024] = {'\0'}; 1255 1256 while (mode != eRNBRunLoopModeExit) 1257 { 1258 switch (mode) 1259 { 1260 case eRNBRunLoopModeGetStartModeFromRemoteProtocol: 1261 #ifdef WITH_LOCKDOWN 1262 if (g_lockdown_opt) 1263 { 1264 if (!remote->Comm().IsConnected()) 1265 { 1266 if (remote->Comm().ConnectToService () != rnb_success) 1267 { 1268 RNBLogSTDERR ("Failed to get connection from a remote gdb process.\n"); 1269 mode = eRNBRunLoopModeExit; 1270 } 1271 else if (g_applist_opt != 0) 1272 { 1273 // List all applications we are able to see 1274 std::string applist_plist; 1275 if (ListApplications(applist_plist, false, false) == 0) 1276 { 1277 DNBLogDebug("Task list: %s", applist_plist.c_str()); 1278 1279 remote->Comm().Write(applist_plist.c_str(), applist_plist.size()); 1280 // Issue a read that will never yield any data until the other side 1281 // closes the socket so this process doesn't just exit and cause the 1282 // socket to close prematurely on the other end and cause data loss. 1283 std::string buf; 1284 remote->Comm().Read(buf); 1285 } 1286 remote->Comm().Disconnect(false); 1287 mode = eRNBRunLoopModeExit; 1288 break; 1289 } 1290 else 1291 { 1292 // Start watching for remote packets 1293 remote->StartReadRemoteDataThread(); 1294 } 1295 } 1296 } 1297 else 1298 #endif 1299 if (listen_port != INT32_MAX) 1300 { 1301 if (!StartListening (remote, listen_host.c_str(), listen_port, unix_socket_name.c_str())) 1302 mode = eRNBRunLoopModeExit; 1303 } 1304 else if (str[0] == '/') 1305 { 1306 if (remote->Comm().OpenFile (str)) 1307 mode = eRNBRunLoopModeExit; 1308 } 1309 1310 if (mode != eRNBRunLoopModeExit) 1311 { 1312 RNBLogSTDOUT ("Got a connection, waiting for process information for launching or attaching.\n"); 1313 1314 mode = RNBRunLoopGetStartModeFromRemote (remote); 1315 } 1316 break; 1317 1318 case eRNBRunLoopModeInferiorAttaching: 1319 if (!waitfor_pid_name.empty()) 1320 { 1321 // Set our end wait time if we are using a waitfor-duration 1322 // option that may have been specified 1323 struct timespec attach_timeout_abstime, *timeout_ptr = NULL; 1324 if (waitfor_duration != 0) 1325 { 1326 DNBTimer::OffsetTimeOfDay(&attach_timeout_abstime, waitfor_duration, 0); 1327 timeout_ptr = &attach_timeout_abstime; 1328 } 1329 nub_launch_flavor_t launch_flavor = g_launch_flavor; 1330 if (launch_flavor == eLaunchFlavorDefault) 1331 { 1332 // Our default launch method is posix spawn 1333 launch_flavor = eLaunchFlavorPosixSpawn; 1334 1335 #ifdef WITH_SPRINGBOARD 1336 // Check if we have an app bundle, if so launch using SpringBoard. 1337 if (waitfor_pid_name.find (".app") != std::string::npos) 1338 { 1339 launch_flavor = eLaunchFlavorSpringBoard; 1340 } 1341 #endif 1342 } 1343 1344 ctx.SetLaunchFlavor(launch_flavor); 1345 bool ignore_existing = false; 1346 RNBLogSTDOUT ("Waiting to attach to process %s...\n", waitfor_pid_name.c_str()); 1347 nub_process_t pid = DNBProcessAttachWait (waitfor_pid_name.c_str(), launch_flavor, ignore_existing, timeout_ptr, waitfor_interval, err_str, sizeof(err_str)); 1348 g_pid = pid; 1349 1350 if (pid == INVALID_NUB_PROCESS) 1351 { 1352 ctx.LaunchStatus().SetError(-1, DNBError::Generic); 1353 if (err_str[0]) 1354 ctx.LaunchStatus().SetErrorString(err_str); 1355 RNBLogSTDERR ("error: failed to attach to process named: \"%s\" %s\n", waitfor_pid_name.c_str(), err_str); 1356 mode = eRNBRunLoopModeExit; 1357 } 1358 else 1359 { 1360 ctx.SetProcessID(pid); 1361 mode = eRNBRunLoopModeInferiorExecuting; 1362 } 1363 } 1364 else if (attach_pid != INVALID_NUB_PROCESS) 1365 { 1366 1367 RNBLogSTDOUT ("Attaching to process %i...\n", attach_pid); 1368 nub_process_t attached_pid; 1369 mode = RNBRunLoopLaunchAttaching (remote, attach_pid, attached_pid); 1370 if (mode != eRNBRunLoopModeInferiorExecuting) 1371 { 1372 const char *error_str = remote->Context().LaunchStatus().AsString(); 1373 RNBLogSTDERR ("error: failed to attach process %i: %s\n", attach_pid, error_str ? error_str : "unknown error."); 1374 mode = eRNBRunLoopModeExit; 1375 } 1376 } 1377 else if (!attach_pid_name.empty ()) 1378 { 1379 struct timespec attach_timeout_abstime, *timeout_ptr = NULL; 1380 if (waitfor_duration != 0) 1381 { 1382 DNBTimer::OffsetTimeOfDay(&attach_timeout_abstime, waitfor_duration, 0); 1383 timeout_ptr = &attach_timeout_abstime; 1384 } 1385 1386 RNBLogSTDOUT ("Attaching to process %s...\n", attach_pid_name.c_str()); 1387 nub_process_t pid = DNBProcessAttachByName (attach_pid_name.c_str(), timeout_ptr, err_str, sizeof(err_str)); 1388 g_pid = pid; 1389 if (pid == INVALID_NUB_PROCESS) 1390 { 1391 ctx.LaunchStatus().SetError(-1, DNBError::Generic); 1392 if (err_str[0]) 1393 ctx.LaunchStatus().SetErrorString(err_str); 1394 RNBLogSTDERR ("error: failed to attach to process named: \"%s\" %s\n", waitfor_pid_name.c_str(), err_str); 1395 mode = eRNBRunLoopModeExit; 1396 } 1397 else 1398 { 1399 ctx.SetProcessID(pid); 1400 mode = eRNBRunLoopModeInferiorExecuting; 1401 } 1402 1403 } 1404 else 1405 { 1406 RNBLogSTDERR ("error: asked to attach with empty name and invalid PID.\n"); 1407 mode = eRNBRunLoopModeExit; 1408 } 1409 1410 if (mode != eRNBRunLoopModeExit) 1411 { 1412 if (listen_port != INT32_MAX) 1413 { 1414 if (!StartListening (remote, listen_host.c_str(), listen_port, unix_socket_name.c_str())) 1415 mode = eRNBRunLoopModeExit; 1416 } 1417 else if (str[0] == '/') 1418 { 1419 if (remote->Comm().OpenFile (str)) 1420 mode = eRNBRunLoopModeExit; 1421 } 1422 if (mode != eRNBRunLoopModeExit) 1423 RNBLogSTDOUT ("Waiting for debugger instructions for process %d.\n", attach_pid); 1424 } 1425 break; 1426 1427 case eRNBRunLoopModeInferiorLaunching: 1428 { 1429 mode = RNBRunLoopLaunchInferior (remote, 1430 ctx.GetSTDINPath(), 1431 ctx.GetSTDOUTPath(), 1432 ctx.GetSTDERRPath(), 1433 no_stdio); 1434 1435 if (mode == eRNBRunLoopModeInferiorExecuting) 1436 { 1437 if (listen_port != INT32_MAX) 1438 { 1439 if (!StartListening (remote, listen_host.c_str(), listen_port, unix_socket_name.c_str())) 1440 mode = eRNBRunLoopModeExit; 1441 } 1442 else if (str[0] == '/') 1443 { 1444 if (remote->Comm().OpenFile (str)) 1445 mode = eRNBRunLoopModeExit; 1446 } 1447 1448 if (mode != eRNBRunLoopModeExit) 1449 RNBLogSTDOUT ("Got a connection, launched process %s.\n", argv_sub_zero); 1450 } 1451 else 1452 { 1453 const char *error_str = remote->Context().LaunchStatus().AsString(); 1454 RNBLogSTDERR ("error: failed to launch process %s: %s\n", argv_sub_zero, error_str ? error_str : "unknown error."); 1455 } 1456 } 1457 break; 1458 1459 case eRNBRunLoopModeInferiorExecuting: 1460 mode = RNBRunLoopInferiorExecuting(remote); 1461 break; 1462 1463 case eRNBRunLoopModePlatformMode: 1464 if (listen_port != INT32_MAX) 1465 { 1466 if (!StartListening (remote, listen_host.c_str(), listen_port, unix_socket_name.c_str())) 1467 mode = eRNBRunLoopModeExit; 1468 } 1469 else if (str[0] == '/') 1470 { 1471 if (remote->Comm().OpenFile (str)) 1472 mode = eRNBRunLoopModeExit; 1473 } 1474 1475 if (mode != eRNBRunLoopModeExit) 1476 mode = RNBRunLoopPlatform (remote); 1477 break; 1478 1479 default: 1480 mode = eRNBRunLoopModeExit; 1481 case eRNBRunLoopModeExit: 1482 break; 1483 } 1484 } 1485 1486 remote->StopReadRemoteDataThread (); 1487 remote->Context().SetProcessID(INVALID_NUB_PROCESS); 1488 RNBLogSTDOUT ("Exiting.\n"); 1489 1490 return 0; 1491 } 1492
