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