1 //===-- DNB.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 // Created by Greg Clayton on 3/23/07. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "DNB.h" 15 #include <inttypes.h> 16 #include <signal.h> 17 #include <stdio.h> 18 #include <stdlib.h> 19 #include <sys/resource.h> 20 #include <sys/stat.h> 21 #include <sys/types.h> 22 #include <sys/wait.h> 23 #include <unistd.h> 24 #include <sys/sysctl.h> 25 #include <map> 26 #include <vector> 27 #include <libproc.h> 28 29 #if defined (__APPLE__) 30 #include <pthread.h> 31 #include <sched.h> 32 #endif 33 34 #define TRY_KQUEUE 1 35 36 #ifdef TRY_KQUEUE 37 #include <sys/event.h> 38 #include <sys/time.h> 39 #ifdef NOTE_EXIT_DETAIL 40 #define USE_KQUEUE 41 #endif 42 #endif 43 44 #include "MacOSX/MachProcess.h" 45 #include "MacOSX/MachTask.h" 46 #include "MacOSX/Genealogy.h" 47 #include "MacOSX/ThreadInfo.h" 48 #include "CFString.h" 49 #include "DNBLog.h" 50 #include "DNBDataRef.h" 51 #include "DNBThreadResumeActions.h" 52 #include "DNBTimer.h" 53 #include "CFBundle.h" 54 55 56 typedef std::shared_ptr<MachProcess> MachProcessSP; 57 typedef std::map<nub_process_t, MachProcessSP> ProcessMap; 58 typedef ProcessMap::iterator ProcessMapIter; 59 typedef ProcessMap::const_iterator ProcessMapConstIter; 60 61 size_t GetAllInfos (std::vector<struct kinfo_proc>& proc_infos); 62 static size_t GetAllInfosMatchingName (const char *process_name, std::vector<struct kinfo_proc>& matching_proc_infos); 63 64 //---------------------------------------------------------------------- 65 // A Thread safe singleton to get a process map pointer. 66 // 67 // Returns a pointer to the existing process map, or a pointer to a 68 // newly created process map if CAN_CREATE is non-zero. 69 //---------------------------------------------------------------------- 70 static ProcessMap* 71 GetProcessMap(bool can_create) 72 { 73 static ProcessMap* g_process_map_ptr = NULL; 74 75 if (can_create && g_process_map_ptr == NULL) 76 { 77 static pthread_mutex_t g_process_map_mutex = PTHREAD_MUTEX_INITIALIZER; 78 PTHREAD_MUTEX_LOCKER (locker, &g_process_map_mutex); 79 if (g_process_map_ptr == NULL) 80 g_process_map_ptr = new ProcessMap; 81 } 82 return g_process_map_ptr; 83 } 84 85 //---------------------------------------------------------------------- 86 // Add PID to the shared process pointer map. 87 // 88 // Return non-zero value if we succeed in adding the process to the map. 89 // The only time this should fail is if we run out of memory and can't 90 // allocate a ProcessMap. 91 //---------------------------------------------------------------------- 92 static nub_bool_t 93 AddProcessToMap (nub_process_t pid, MachProcessSP& procSP) 94 { 95 ProcessMap* process_map = GetProcessMap(true); 96 if (process_map) 97 { 98 process_map->insert(std::make_pair(pid, procSP)); 99 return true; 100 } 101 return false; 102 } 103 104 //---------------------------------------------------------------------- 105 // Remove the shared pointer for PID from the process map. 106 // 107 // Returns the number of items removed from the process map. 108 //---------------------------------------------------------------------- 109 //static size_t 110 //RemoveProcessFromMap (nub_process_t pid) 111 //{ 112 // ProcessMap* process_map = GetProcessMap(false); 113 // if (process_map) 114 // { 115 // return process_map->erase(pid); 116 // } 117 // return 0; 118 //} 119 120 //---------------------------------------------------------------------- 121 // Get the shared pointer for PID from the existing process map. 122 // 123 // Returns true if we successfully find a shared pointer to a 124 // MachProcess object. 125 //---------------------------------------------------------------------- 126 static nub_bool_t 127 GetProcessSP (nub_process_t pid, MachProcessSP& procSP) 128 { 129 ProcessMap* process_map = GetProcessMap(false); 130 if (process_map != NULL) 131 { 132 ProcessMapIter pos = process_map->find(pid); 133 if (pos != process_map->end()) 134 { 135 procSP = pos->second; 136 return true; 137 } 138 } 139 procSP.reset(); 140 return false; 141 } 142 143 #ifdef USE_KQUEUE 144 void * 145 kqueue_thread (void *arg) 146 { 147 int kq_id = (int) (intptr_t) arg; 148 149 #if defined (__APPLE__) 150 pthread_setname_np ("kqueue thread"); 151 #if defined (__arm__) || defined (__arm64__) || defined (__aarch64__) 152 struct sched_param thread_param; 153 int thread_sched_policy; 154 if (pthread_getschedparam(pthread_self(), &thread_sched_policy, &thread_param) == 0) 155 { 156 thread_param.sched_priority = 47; 157 pthread_setschedparam(pthread_self(), thread_sched_policy, &thread_param); 158 } 159 #endif 160 #endif 161 162 struct kevent death_event; 163 while (1) 164 { 165 int n_events = kevent (kq_id, NULL, 0, &death_event, 1, NULL); 166 if (n_events == -1) 167 { 168 if (errno == EINTR) 169 continue; 170 else 171 { 172 DNBLogError ("kqueue failed with error: (%d): %s", errno, strerror(errno)); 173 return NULL; 174 } 175 } 176 else if (death_event.flags & EV_ERROR) 177 { 178 int error_no = static_cast<int>(death_event.data); 179 const char *error_str = strerror(error_no); 180 if (error_str == NULL) 181 error_str = "Unknown error"; 182 DNBLogError ("Failed to initialize kqueue event: (%d): %s", error_no, error_str ); 183 return NULL; 184 } 185 else 186 { 187 int status; 188 const pid_t pid = (pid_t)death_event.ident; 189 const pid_t child_pid = waitpid (pid, &status, 0); 190 191 192 bool exited = false; 193 int signal = 0; 194 int exit_status = 0; 195 if (WIFSTOPPED(status)) 196 { 197 signal = WSTOPSIG(status); 198 DNBLogThreadedIf(LOG_PROCESS, "waitpid (%i) -> STOPPED (signal = %i)", child_pid, signal); 199 } 200 else if (WIFEXITED(status)) 201 { 202 exit_status = WEXITSTATUS(status); 203 exited = true; 204 DNBLogThreadedIf(LOG_PROCESS, "waitpid (%i) -> EXITED (status = %i)", child_pid, exit_status); 205 } 206 else if (WIFSIGNALED(status)) 207 { 208 signal = WTERMSIG(status); 209 if (child_pid == abs(pid)) 210 { 211 DNBLogThreadedIf(LOG_PROCESS, "waitpid (%i) -> SIGNALED and EXITED (signal = %i)", child_pid, signal); 212 char exit_info[64]; 213 ::snprintf (exit_info, sizeof(exit_info), "Terminated due to signal %i", signal); 214 DNBProcessSetExitInfo (child_pid, exit_info); 215 exited = true; 216 exit_status = INT8_MAX; 217 } 218 else 219 { 220 DNBLogThreadedIf(LOG_PROCESS, "waitpid (%i) -> SIGNALED (signal = %i)", child_pid, signal); 221 } 222 } 223 224 if (exited) 225 { 226 if (death_event.data & NOTE_EXIT_MEMORY) 227 DNBProcessSetExitInfo (child_pid, "Terminated due to memory issue"); 228 else if (death_event.data & NOTE_EXIT_DECRYPTFAIL) 229 DNBProcessSetExitInfo (child_pid, "Terminated due to decrypt failure"); 230 else if (death_event.data & NOTE_EXIT_CSERROR) 231 DNBProcessSetExitInfo (child_pid, "Terminated due to code signing error"); 232 233 DNBLogThreadedIf(LOG_PROCESS, "waitpid_process_thread (): setting exit status for pid = %i to %i", child_pid, exit_status); 234 DNBProcessSetExitStatus (child_pid, status); 235 return NULL; 236 } 237 } 238 } 239 } 240 241 static bool 242 spawn_kqueue_thread (pid_t pid) 243 { 244 pthread_t thread; 245 int kq_id; 246 247 kq_id = kqueue(); 248 if (kq_id == -1) 249 { 250 DNBLogError ("Could not get kqueue for pid = %i.", pid); 251 return false; 252 } 253 254 struct kevent reg_event; 255 256 EV_SET(®_event, pid, EVFILT_PROC, EV_ADD, NOTE_EXIT|NOTE_EXITSTATUS|NOTE_EXIT_DETAIL, 0, NULL); 257 // Register the event: 258 int result = kevent (kq_id, ®_event, 1, NULL, 0, NULL); 259 if (result != 0) 260 { 261 DNBLogError ("Failed to register kqueue NOTE_EXIT event for pid %i, error: %d.", pid, result); 262 return false; 263 } 264 265 int ret = ::pthread_create (&thread, NULL, kqueue_thread, (void *)(intptr_t)kq_id); 266 267 // pthread_create returns 0 if successful 268 if (ret == 0) 269 { 270 ::pthread_detach (thread); 271 return true; 272 } 273 return false; 274 } 275 #endif // #if USE_KQUEUE 276 277 static void * 278 waitpid_thread (void *arg) 279 { 280 const pid_t pid = (pid_t)(intptr_t)arg; 281 int status; 282 283 #if defined (__APPLE__) 284 pthread_setname_np ("waitpid thread"); 285 #if defined (__arm__) || defined (__arm64__) || defined (__aarch64__) 286 struct sched_param thread_param; 287 int thread_sched_policy; 288 if (pthread_getschedparam(pthread_self(), &thread_sched_policy, &thread_param) == 0) 289 { 290 thread_param.sched_priority = 47; 291 pthread_setschedparam(pthread_self(), thread_sched_policy, &thread_param); 292 } 293 #endif 294 #endif 295 296 while (1) 297 { 298 pid_t child_pid = waitpid(pid, &status, 0); 299 DNBLogThreadedIf(LOG_PROCESS, "waitpid_thread (): waitpid (pid = %i, &status, 0) => %i, status = %i, errno = %i", pid, child_pid, status, errno); 300 301 if (child_pid < 0) 302 { 303 if (errno == EINTR) 304 continue; 305 break; 306 } 307 else 308 { 309 if (WIFSTOPPED(status)) 310 { 311 continue; 312 } 313 else// if (WIFEXITED(status) || WIFSIGNALED(status)) 314 { 315 DNBLogThreadedIf(LOG_PROCESS, "waitpid_thread (): setting exit status for pid = %i to %i", child_pid, status); 316 DNBProcessSetExitStatus (child_pid, status); 317 return NULL; 318 } 319 } 320 } 321 322 // We should never exit as long as our child process is alive, so if we 323 // do something else went wrong and we should exit... 324 DNBLogThreadedIf(LOG_PROCESS, "waitpid_thread (): main loop exited, setting exit status to an invalid value (-1) for pid %i", pid); 325 DNBProcessSetExitStatus (pid, -1); 326 return NULL; 327 } 328 static bool 329 spawn_waitpid_thread (pid_t pid) 330 { 331 #ifdef USE_KQUEUE 332 bool success = spawn_kqueue_thread (pid); 333 if (success) 334 return true; 335 #endif 336 337 pthread_t thread; 338 int ret = ::pthread_create (&thread, NULL, waitpid_thread, (void *)(intptr_t)pid); 339 // pthread_create returns 0 if successful 340 if (ret == 0) 341 { 342 ::pthread_detach (thread); 343 return true; 344 } 345 return false; 346 } 347 348 nub_process_t 349 DNBProcessLaunch (const char *path, 350 char const *argv[], 351 const char *envp[], 352 const char *working_directory, // NULL => don't change, non-NULL => set working directory for inferior to this 353 const char *stdin_path, 354 const char *stdout_path, 355 const char *stderr_path, 356 bool no_stdio, 357 nub_launch_flavor_t launch_flavor, 358 int disable_aslr, 359 const char *event_data, 360 char *err_str, 361 size_t err_len) 362 { 363 DNBLogThreadedIf(LOG_PROCESS, "%s ( path='%s', argv = %p, envp = %p, working_dir=%s, stdin=%s, stdout=%s, stderr=%s, no-stdio=%i, launch_flavor = %u, disable_aslr = %d, err = %p, err_len = %llu) called...", 364 __FUNCTION__, 365 path, 366 argv, 367 envp, 368 working_directory, 369 stdin_path, 370 stdout_path, 371 stderr_path, 372 no_stdio, 373 launch_flavor, 374 disable_aslr, 375 err_str, 376 (uint64_t)err_len); 377 378 if (err_str && err_len > 0) 379 err_str[0] = '\0'; 380 struct stat path_stat; 381 if (::stat(path, &path_stat) == -1) 382 { 383 char stat_error[256]; 384 ::strerror_r (errno, stat_error, sizeof(stat_error)); 385 snprintf(err_str, err_len, "%s (%s)", stat_error, path); 386 return INVALID_NUB_PROCESS; 387 } 388 389 MachProcessSP processSP (new MachProcess); 390 if (processSP.get()) 391 { 392 DNBError launch_err; 393 pid_t pid = processSP->LaunchForDebug (path, 394 argv, 395 envp, 396 working_directory, 397 stdin_path, 398 stdout_path, 399 stderr_path, 400 no_stdio, 401 launch_flavor, 402 disable_aslr, 403 event_data, 404 launch_err); 405 if (err_str) 406 { 407 *err_str = '\0'; 408 if (launch_err.Fail()) 409 { 410 const char *launch_err_str = launch_err.AsString(); 411 if (launch_err_str) 412 { 413 strncpy(err_str, launch_err_str, err_len-1); 414 err_str[err_len-1] = '\0'; // Make sure the error string is terminated 415 } 416 } 417 } 418 419 DNBLogThreadedIf(LOG_PROCESS, "(DebugNub) new pid is %d...", pid); 420 421 if (pid != INVALID_NUB_PROCESS) 422 { 423 // Spawn a thread to reap our child inferior process... 424 spawn_waitpid_thread (pid); 425 426 if (processSP->Task().TaskPortForProcessID (launch_err) == TASK_NULL) 427 { 428 // We failed to get the task for our process ID which is bad. 429 // Kill our process otherwise it will be stopped at the entry 430 // point and get reparented to someone else and never go away. 431 DNBLog ("Could not get task port for process, sending SIGKILL and exiting."); 432 kill (SIGKILL, pid); 433 434 if (err_str && err_len > 0) 435 { 436 if (launch_err.AsString()) 437 { 438 ::snprintf (err_str, err_len, "failed to get the task for process %i (%s)", pid, launch_err.AsString()); 439 } 440 else 441 { 442 ::snprintf (err_str, err_len, "failed to get the task for process %i", pid); 443 } 444 } 445 } 446 else 447 { 448 bool res = AddProcessToMap(pid, processSP); 449 assert(res && "Couldn't add process to map!"); 450 return pid; 451 } 452 } 453 } 454 return INVALID_NUB_PROCESS; 455 } 456 457 nub_process_t 458 DNBProcessAttachByName (const char *name, struct timespec *timeout, char *err_str, size_t err_len) 459 { 460 if (err_str && err_len > 0) 461 err_str[0] = '\0'; 462 std::vector<struct kinfo_proc> matching_proc_infos; 463 size_t num_matching_proc_infos = GetAllInfosMatchingName(name, matching_proc_infos); 464 if (num_matching_proc_infos == 0) 465 { 466 DNBLogError ("error: no processes match '%s'\n", name); 467 return INVALID_NUB_PROCESS; 468 } 469 else if (num_matching_proc_infos > 1) 470 { 471 DNBLogError ("error: %llu processes match '%s':\n", (uint64_t)num_matching_proc_infos, name); 472 size_t i; 473 for (i=0; i<num_matching_proc_infos; ++i) 474 DNBLogError ("%6u - %s\n", matching_proc_infos[i].kp_proc.p_pid, matching_proc_infos[i].kp_proc.p_comm); 475 return INVALID_NUB_PROCESS; 476 } 477 478 return DNBProcessAttach (matching_proc_infos[0].kp_proc.p_pid, timeout, err_str, err_len); 479 } 480 481 nub_process_t 482 DNBProcessAttach (nub_process_t attach_pid, struct timespec *timeout, char *err_str, size_t err_len) 483 { 484 if (err_str && err_len > 0) 485 err_str[0] = '\0'; 486 487 pid_t pid = INVALID_NUB_PROCESS; 488 MachProcessSP processSP(new MachProcess); 489 if (processSP.get()) 490 { 491 DNBLogThreadedIf(LOG_PROCESS, "(DebugNub) attaching to pid %d...", attach_pid); 492 pid = processSP->AttachForDebug (attach_pid, err_str, err_len); 493 494 if (pid != INVALID_NUB_PROCESS) 495 { 496 bool res = AddProcessToMap(pid, processSP); 497 assert(res && "Couldn't add process to map!"); 498 spawn_waitpid_thread(pid); 499 } 500 } 501 502 while (pid != INVALID_NUB_PROCESS) 503 { 504 // Wait for process to start up and hit entry point 505 DNBLogThreadedIf (LOG_PROCESS, 506 "%s DNBProcessWaitForEvent (%4.4x, eEventProcessRunningStateChanged | eEventProcessStoppedStateChanged, true, INFINITE)...", 507 __FUNCTION__, 508 pid); 509 nub_event_t set_events = DNBProcessWaitForEvents (pid, 510 eEventProcessRunningStateChanged | eEventProcessStoppedStateChanged, 511 true, 512 timeout); 513 514 DNBLogThreadedIf (LOG_PROCESS, 515 "%s DNBProcessWaitForEvent (%4.4x, eEventProcessRunningStateChanged | eEventProcessStoppedStateChanged, true, INFINITE) => 0x%8.8x", 516 __FUNCTION__, 517 pid, 518 set_events); 519 520 if (set_events == 0) 521 { 522 if (err_str && err_len > 0) 523 snprintf(err_str, err_len, "operation timed out"); 524 pid = INVALID_NUB_PROCESS; 525 } 526 else 527 { 528 if (set_events & (eEventProcessRunningStateChanged | eEventProcessStoppedStateChanged)) 529 { 530 nub_state_t pid_state = DNBProcessGetState (pid); 531 DNBLogThreadedIf (LOG_PROCESS, "%s process %4.4x state changed (eEventProcessStateChanged): %s", 532 __FUNCTION__, pid, DNBStateAsString(pid_state)); 533 534 switch (pid_state) 535 { 536 default: 537 case eStateInvalid: 538 case eStateUnloaded: 539 case eStateAttaching: 540 case eStateLaunching: 541 case eStateSuspended: 542 break; // Ignore 543 544 case eStateRunning: 545 case eStateStepping: 546 // Still waiting to stop at entry point... 547 break; 548 549 case eStateStopped: 550 case eStateCrashed: 551 return pid; 552 553 case eStateDetached: 554 case eStateExited: 555 if (err_str && err_len > 0) 556 snprintf(err_str, err_len, "process exited"); 557 return INVALID_NUB_PROCESS; 558 } 559 } 560 561 DNBProcessResetEvents(pid, set_events); 562 } 563 } 564 565 return INVALID_NUB_PROCESS; 566 } 567 568 size_t 569 GetAllInfos (std::vector<struct kinfo_proc>& proc_infos) 570 { 571 size_t size = 0; 572 int name[] = { CTL_KERN, KERN_PROC, KERN_PROC_ALL }; 573 u_int namelen = sizeof(name)/sizeof(int); 574 int err; 575 576 // Try to find out how many processes are around so we can 577 // size the buffer appropriately. sysctl's man page specifically suggests 578 // this approach, and says it returns a bit larger size than needed to 579 // handle any new processes created between then and now. 580 581 err = ::sysctl (name, namelen, NULL, &size, NULL, 0); 582 583 if ((err < 0) && (err != ENOMEM)) 584 { 585 proc_infos.clear(); 586 perror("sysctl (mib, miblen, NULL, &num_processes, NULL, 0)"); 587 return 0; 588 } 589 590 591 // Increase the size of the buffer by a few processes in case more have 592 // been spawned 593 proc_infos.resize (size / sizeof(struct kinfo_proc)); 594 size = proc_infos.size() * sizeof(struct kinfo_proc); // Make sure we don't exceed our resize... 595 err = ::sysctl (name, namelen, &proc_infos[0], &size, NULL, 0); 596 if (err < 0) 597 { 598 proc_infos.clear(); 599 return 0; 600 } 601 602 // Trim down our array to fit what we actually got back 603 proc_infos.resize(size / sizeof(struct kinfo_proc)); 604 return proc_infos.size(); 605 } 606 607 static size_t 608 GetAllInfosMatchingName(const char *full_process_name, std::vector<struct kinfo_proc>& matching_proc_infos) 609 { 610 611 matching_proc_infos.clear(); 612 if (full_process_name && full_process_name[0]) 613 { 614 // We only get the process name, not the full path, from the proc_info. So just take the 615 // base name of the process name... 616 const char *process_name; 617 process_name = strrchr (full_process_name, '/'); 618 if (process_name == NULL) 619 process_name = full_process_name; 620 else 621 process_name++; 622 623 const size_t process_name_len = strlen(process_name); 624 std::vector<struct kinfo_proc> proc_infos; 625 const size_t num_proc_infos = GetAllInfos(proc_infos); 626 if (num_proc_infos > 0) 627 { 628 uint32_t i; 629 for (i=0; i<num_proc_infos; i++) 630 { 631 // Skip zombie processes and processes with unset status 632 if (proc_infos[i].kp_proc.p_stat == 0 || proc_infos[i].kp_proc.p_stat == SZOMB) 633 continue; 634 635 // Check for process by name. We only check the first MAXCOMLEN 636 // chars as that is all that kp_proc.p_comm holds. 637 638 if (::strncasecmp(process_name, proc_infos[i].kp_proc.p_comm, MAXCOMLEN) == 0) 639 { 640 if (process_name_len > MAXCOMLEN) 641 { 642 // We found a matching process name whose first MAXCOMLEN 643 // characters match, but there is more to the name than 644 // this. We need to get the full process name. Use proc_pidpath, which will get 645 // us the full path to the executed process. 646 647 char proc_path_buf[PATH_MAX]; 648 649 int return_val = proc_pidpath (proc_infos[i].kp_proc.p_pid, proc_path_buf, PATH_MAX); 650 if (return_val > 0) 651 { 652 // Okay, now search backwards from that to see if there is a 653 // slash in the name. Note, even though we got all the args we don't care 654 // because the list data is just a bunch of concatenated null terminated strings 655 // so strrchr will start from the end of argv0. 656 657 const char *argv_basename = strrchr(proc_path_buf, '/'); 658 if (argv_basename) 659 { 660 // Skip the '/' 661 ++argv_basename; 662 } 663 else 664 { 665 // We didn't find a directory delimiter in the process argv[0], just use what was in there 666 argv_basename = proc_path_buf; 667 } 668 669 if (argv_basename) 670 { 671 if (::strncasecmp(process_name, argv_basename, PATH_MAX) == 0) 672 { 673 matching_proc_infos.push_back(proc_infos[i]); 674 } 675 } 676 } 677 } 678 else 679 { 680 // We found a matching process, add it to our list 681 matching_proc_infos.push_back(proc_infos[i]); 682 } 683 } 684 } 685 } 686 } 687 // return the newly added matches. 688 return matching_proc_infos.size(); 689 } 690 691 nub_process_t 692 DNBProcessAttachWait (const char *waitfor_process_name, 693 nub_launch_flavor_t launch_flavor, 694 bool ignore_existing, 695 struct timespec *timeout_abstime, 696 useconds_t waitfor_interval, 697 char *err_str, 698 size_t err_len, 699 DNBShouldCancelCallback should_cancel_callback, 700 void *callback_data) 701 { 702 DNBError prepare_error; 703 std::vector<struct kinfo_proc> exclude_proc_infos; 704 size_t num_exclude_proc_infos; 705 706 // If the PrepareForAttach returns a valid token, use MachProcess to check 707 // for the process, otherwise scan the process table. 708 709 const void *attach_token = MachProcess::PrepareForAttach (waitfor_process_name, launch_flavor, true, prepare_error); 710 711 if (prepare_error.Fail()) 712 { 713 DNBLogError ("Error in PrepareForAttach: %s", prepare_error.AsString()); 714 return INVALID_NUB_PROCESS; 715 } 716 717 if (attach_token == NULL) 718 { 719 if (ignore_existing) 720 num_exclude_proc_infos = GetAllInfosMatchingName (waitfor_process_name, exclude_proc_infos); 721 else 722 num_exclude_proc_infos = 0; 723 } 724 725 DNBLogThreadedIf (LOG_PROCESS, "Waiting for '%s' to appear...\n", waitfor_process_name); 726 727 // Loop and try to find the process by name 728 nub_process_t waitfor_pid = INVALID_NUB_PROCESS; 729 730 while (waitfor_pid == INVALID_NUB_PROCESS) 731 { 732 if (attach_token != NULL) 733 { 734 nub_process_t pid; 735 pid = MachProcess::CheckForProcess(attach_token); 736 if (pid != INVALID_NUB_PROCESS) 737 { 738 waitfor_pid = pid; 739 break; 740 } 741 } 742 else 743 { 744 745 // Get the current process list, and check for matches that 746 // aren't in our original list. If anyone wants to attach 747 // to an existing process by name, they should do it with 748 // --attach=PROCNAME. Else we will wait for the first matching 749 // process that wasn't in our exclusion list. 750 std::vector<struct kinfo_proc> proc_infos; 751 const size_t num_proc_infos = GetAllInfosMatchingName (waitfor_process_name, proc_infos); 752 for (size_t i=0; i<num_proc_infos; i++) 753 { 754 nub_process_t curr_pid = proc_infos[i].kp_proc.p_pid; 755 for (size_t j=0; j<num_exclude_proc_infos; j++) 756 { 757 if (curr_pid == exclude_proc_infos[j].kp_proc.p_pid) 758 { 759 // This process was in our exclusion list, don't use it. 760 curr_pid = INVALID_NUB_PROCESS; 761 break; 762 } 763 } 764 765 // If we didn't find CURR_PID in our exclusion list, then use it. 766 if (curr_pid != INVALID_NUB_PROCESS) 767 { 768 // We found our process! 769 waitfor_pid = curr_pid; 770 break; 771 } 772 } 773 } 774 775 // If we haven't found our process yet, check for a timeout 776 // and then sleep for a bit until we poll again. 777 if (waitfor_pid == INVALID_NUB_PROCESS) 778 { 779 if (timeout_abstime != NULL) 780 { 781 // Check to see if we have a waitfor-duration option that 782 // has timed out? 783 if (DNBTimer::TimeOfDayLaterThan(*timeout_abstime)) 784 { 785 if (err_str && err_len > 0) 786 snprintf(err_str, err_len, "operation timed out"); 787 DNBLogError ("error: waiting for process '%s' timed out.\n", waitfor_process_name); 788 return INVALID_NUB_PROCESS; 789 } 790 } 791 792 // Call the should cancel callback as well... 793 794 if (should_cancel_callback != NULL 795 && should_cancel_callback (callback_data)) 796 { 797 DNBLogThreadedIf (LOG_PROCESS, "DNBProcessAttachWait cancelled by should_cancel callback."); 798 waitfor_pid = INVALID_NUB_PROCESS; 799 break; 800 } 801 802 ::usleep (waitfor_interval); // Sleep for WAITFOR_INTERVAL, then poll again 803 } 804 } 805 806 if (waitfor_pid != INVALID_NUB_PROCESS) 807 { 808 DNBLogThreadedIf (LOG_PROCESS, "Attaching to %s with pid %i...\n", waitfor_process_name, waitfor_pid); 809 waitfor_pid = DNBProcessAttach (waitfor_pid, timeout_abstime, err_str, err_len); 810 } 811 812 bool success = waitfor_pid != INVALID_NUB_PROCESS; 813 MachProcess::CleanupAfterAttach (attach_token, success, prepare_error); 814 815 return waitfor_pid; 816 } 817 818 nub_bool_t 819 DNBProcessDetach (nub_process_t pid) 820 { 821 MachProcessSP procSP; 822 if (GetProcessSP (pid, procSP)) 823 { 824 const bool remove = true; 825 DNBLogThreaded("Disabling breakpoints and watchpoints, and detaching from %d.", pid); 826 procSP->DisableAllBreakpoints(remove); 827 procSP->DisableAllWatchpoints (remove); 828 return procSP->Detach(); 829 } 830 return false; 831 } 832 833 nub_bool_t 834 DNBProcessKill (nub_process_t pid) 835 { 836 MachProcessSP procSP; 837 if (GetProcessSP (pid, procSP)) 838 { 839 return procSP->Kill (); 840 } 841 return false; 842 } 843 844 nub_bool_t 845 DNBProcessSignal (nub_process_t pid, int signal) 846 { 847 MachProcessSP procSP; 848 if (GetProcessSP (pid, procSP)) 849 { 850 return procSP->Signal (signal); 851 } 852 return false; 853 } 854 855 856 nub_bool_t 857 DNBProcessInterrupt(nub_process_t pid) 858 { 859 MachProcessSP procSP; 860 if (GetProcessSP (pid, procSP)) 861 return procSP->Interrupt(); 862 return false; 863 } 864 865 nub_bool_t 866 DNBProcessSendEvent (nub_process_t pid, const char *event) 867 { 868 MachProcessSP procSP; 869 if (GetProcessSP (pid, procSP)) 870 { 871 // FIXME: Do something with the error... 872 DNBError send_error; 873 return procSP->SendEvent (event, send_error); 874 } 875 return false; 876 } 877 878 879 nub_bool_t 880 DNBProcessIsAlive (nub_process_t pid) 881 { 882 MachProcessSP procSP; 883 if (GetProcessSP (pid, procSP)) 884 { 885 return MachTask::IsValid (procSP->Task().TaskPort()); 886 } 887 return eStateInvalid; 888 } 889 890 //---------------------------------------------------------------------- 891 // Process and Thread state information 892 //---------------------------------------------------------------------- 893 nub_state_t 894 DNBProcessGetState (nub_process_t pid) 895 { 896 MachProcessSP procSP; 897 if (GetProcessSP (pid, procSP)) 898 { 899 return procSP->GetState(); 900 } 901 return eStateInvalid; 902 } 903 904 //---------------------------------------------------------------------- 905 // Process and Thread state information 906 //---------------------------------------------------------------------- 907 nub_bool_t 908 DNBProcessGetExitStatus (nub_process_t pid, int* status) 909 { 910 MachProcessSP procSP; 911 if (GetProcessSP (pid, procSP)) 912 { 913 return procSP->GetExitStatus(status); 914 } 915 return false; 916 } 917 918 nub_bool_t 919 DNBProcessSetExitStatus (nub_process_t pid, int status) 920 { 921 MachProcessSP procSP; 922 if (GetProcessSP (pid, procSP)) 923 { 924 procSP->SetExitStatus(status); 925 return true; 926 } 927 return false; 928 } 929 930 const char * 931 DNBProcessGetExitInfo (nub_process_t pid) 932 { 933 MachProcessSP procSP; 934 if (GetProcessSP (pid, procSP)) 935 { 936 return procSP->GetExitInfo(); 937 } 938 return NULL; 939 } 940 941 nub_bool_t 942 DNBProcessSetExitInfo (nub_process_t pid, const char *info) 943 { 944 MachProcessSP procSP; 945 if (GetProcessSP (pid, procSP)) 946 { 947 procSP->SetExitInfo(info); 948 return true; 949 } 950 return false; 951 } 952 953 const char * 954 DNBThreadGetName (nub_process_t pid, nub_thread_t tid) 955 { 956 MachProcessSP procSP; 957 if (GetProcessSP (pid, procSP)) 958 return procSP->ThreadGetName(tid); 959 return NULL; 960 } 961 962 963 nub_bool_t 964 DNBThreadGetIdentifierInfo (nub_process_t pid, nub_thread_t tid, thread_identifier_info_data_t *ident_info) 965 { 966 MachProcessSP procSP; 967 if (GetProcessSP (pid, procSP)) 968 return procSP->GetThreadList().GetIdentifierInfo(tid, ident_info); 969 return false; 970 } 971 972 nub_state_t 973 DNBThreadGetState (nub_process_t pid, nub_thread_t tid) 974 { 975 MachProcessSP procSP; 976 if (GetProcessSP (pid, procSP)) 977 { 978 return procSP->ThreadGetState(tid); 979 } 980 return eStateInvalid; 981 } 982 983 const char * 984 DNBStateAsString(nub_state_t state) 985 { 986 switch (state) 987 { 988 case eStateInvalid: return "Invalid"; 989 case eStateUnloaded: return "Unloaded"; 990 case eStateAttaching: return "Attaching"; 991 case eStateLaunching: return "Launching"; 992 case eStateStopped: return "Stopped"; 993 case eStateRunning: return "Running"; 994 case eStateStepping: return "Stepping"; 995 case eStateCrashed: return "Crashed"; 996 case eStateDetached: return "Detached"; 997 case eStateExited: return "Exited"; 998 case eStateSuspended: return "Suspended"; 999 } 1000 return "nub_state_t ???"; 1001 } 1002 1003 Genealogy::ThreadActivitySP 1004 DNBGetGenealogyInfoForThread (nub_process_t pid, nub_thread_t tid, bool &timed_out) 1005 { 1006 Genealogy::ThreadActivitySP thread_activity_sp; 1007 MachProcessSP procSP; 1008 if (GetProcessSP (pid, procSP)) 1009 thread_activity_sp = procSP->GetGenealogyInfoForThread (tid, timed_out); 1010 return thread_activity_sp; 1011 } 1012 1013 Genealogy::ProcessExecutableInfoSP 1014 DNBGetGenealogyImageInfo (nub_process_t pid, size_t idx) 1015 { 1016 Genealogy::ProcessExecutableInfoSP image_info_sp; 1017 MachProcessSP procSP; 1018 if (GetProcessSP (pid, procSP)) 1019 { 1020 image_info_sp = procSP->GetGenealogyImageInfo (idx); 1021 } 1022 return image_info_sp; 1023 } 1024 1025 ThreadInfo::QoS 1026 DNBGetRequestedQoSForThread (nub_process_t pid, nub_thread_t tid, nub_addr_t tsd, uint64_t dti_qos_class_index) 1027 { 1028 MachProcessSP procSP; 1029 if (GetProcessSP (pid, procSP)) 1030 { 1031 return procSP->GetRequestedQoS (tid, tsd, dti_qos_class_index); 1032 } 1033 return ThreadInfo::QoS(); 1034 } 1035 1036 nub_addr_t 1037 DNBGetPThreadT (nub_process_t pid, nub_thread_t tid) 1038 { 1039 MachProcessSP procSP; 1040 if (GetProcessSP (pid, procSP)) 1041 { 1042 return procSP->GetPThreadT (tid); 1043 } 1044 return INVALID_NUB_ADDRESS; 1045 } 1046 1047 nub_addr_t 1048 DNBGetDispatchQueueT (nub_process_t pid, nub_thread_t tid) 1049 { 1050 MachProcessSP procSP; 1051 if (GetProcessSP (pid, procSP)) 1052 { 1053 return procSP->GetDispatchQueueT (tid); 1054 } 1055 return INVALID_NUB_ADDRESS; 1056 } 1057 1058 nub_addr_t 1059 DNBGetTSDAddressForThread (nub_process_t pid, nub_thread_t tid, uint64_t plo_pthread_tsd_base_address_offset, uint64_t plo_pthread_tsd_base_offset, uint64_t plo_pthread_tsd_entry_size) 1060 { 1061 MachProcessSP procSP; 1062 if (GetProcessSP (pid, procSP)) 1063 { 1064 return procSP->GetTSDAddressForThread (tid, plo_pthread_tsd_base_address_offset, plo_pthread_tsd_base_offset, plo_pthread_tsd_entry_size); 1065 } 1066 return INVALID_NUB_ADDRESS; 1067 } 1068 1069 1070 const char * 1071 DNBProcessGetExecutablePath (nub_process_t pid) 1072 { 1073 MachProcessSP procSP; 1074 if (GetProcessSP (pid, procSP)) 1075 { 1076 return procSP->Path(); 1077 } 1078 return NULL; 1079 } 1080 1081 nub_size_t 1082 DNBProcessGetArgumentCount (nub_process_t pid) 1083 { 1084 MachProcessSP procSP; 1085 if (GetProcessSP (pid, procSP)) 1086 { 1087 return procSP->ArgumentCount(); 1088 } 1089 return 0; 1090 } 1091 1092 const char * 1093 DNBProcessGetArgumentAtIndex (nub_process_t pid, nub_size_t idx) 1094 { 1095 MachProcessSP procSP; 1096 if (GetProcessSP (pid, procSP)) 1097 { 1098 return procSP->ArgumentAtIndex (idx); 1099 } 1100 return NULL; 1101 } 1102 1103 1104 //---------------------------------------------------------------------- 1105 // Execution control 1106 //---------------------------------------------------------------------- 1107 nub_bool_t 1108 DNBProcessResume (nub_process_t pid, const DNBThreadResumeAction *actions, size_t num_actions) 1109 { 1110 DNBLogThreadedIf(LOG_PROCESS, "%s(pid = %4.4x)", __FUNCTION__, pid); 1111 MachProcessSP procSP; 1112 if (GetProcessSP (pid, procSP)) 1113 { 1114 DNBThreadResumeActions thread_actions (actions, num_actions); 1115 1116 // Below we add a default thread plan just in case one wasn't 1117 // provided so all threads always know what they were supposed to do 1118 if (thread_actions.IsEmpty()) 1119 { 1120 // No thread plans were given, so the default it to run all threads 1121 thread_actions.SetDefaultThreadActionIfNeeded (eStateRunning, 0); 1122 } 1123 else 1124 { 1125 // Some thread plans were given which means anything that wasn't 1126 // specified should remain stopped. 1127 thread_actions.SetDefaultThreadActionIfNeeded (eStateStopped, 0); 1128 } 1129 return procSP->Resume (thread_actions); 1130 } 1131 return false; 1132 } 1133 1134 nub_bool_t 1135 DNBProcessHalt (nub_process_t pid) 1136 { 1137 DNBLogThreadedIf(LOG_PROCESS, "%s(pid = %4.4x)", __FUNCTION__, pid); 1138 MachProcessSP procSP; 1139 if (GetProcessSP (pid, procSP)) 1140 return procSP->Signal (SIGSTOP); 1141 return false; 1142 } 1143 // 1144 //nub_bool_t 1145 //DNBThreadResume (nub_process_t pid, nub_thread_t tid, nub_bool_t step) 1146 //{ 1147 // DNBLogThreadedIf(LOG_THREAD, "%s(pid = %4.4x, tid = %4.4x, step = %u)", __FUNCTION__, pid, tid, (uint32_t)step); 1148 // MachProcessSP procSP; 1149 // if (GetProcessSP (pid, procSP)) 1150 // { 1151 // return procSP->Resume(tid, step, 0); 1152 // } 1153 // return false; 1154 //} 1155 // 1156 //nub_bool_t 1157 //DNBThreadResumeWithSignal (nub_process_t pid, nub_thread_t tid, nub_bool_t step, int signal) 1158 //{ 1159 // DNBLogThreadedIf(LOG_THREAD, "%s(pid = %4.4x, tid = %4.4x, step = %u, signal = %i)", __FUNCTION__, pid, tid, (uint32_t)step, signal); 1160 // MachProcessSP procSP; 1161 // if (GetProcessSP (pid, procSP)) 1162 // { 1163 // return procSP->Resume(tid, step, signal); 1164 // } 1165 // return false; 1166 //} 1167 1168 nub_event_t 1169 DNBProcessWaitForEvents (nub_process_t pid, nub_event_t event_mask, bool wait_for_set, struct timespec* timeout) 1170 { 1171 nub_event_t result = 0; 1172 MachProcessSP procSP; 1173 if (GetProcessSP (pid, procSP)) 1174 { 1175 if (wait_for_set) 1176 result = procSP->Events().WaitForSetEvents(event_mask, timeout); 1177 else 1178 result = procSP->Events().WaitForEventsToReset(event_mask, timeout); 1179 } 1180 return result; 1181 } 1182 1183 void 1184 DNBProcessResetEvents (nub_process_t pid, nub_event_t event_mask) 1185 { 1186 MachProcessSP procSP; 1187 if (GetProcessSP (pid, procSP)) 1188 procSP->Events().ResetEvents(event_mask); 1189 } 1190 1191 // Breakpoints 1192 nub_bool_t 1193 DNBBreakpointSet (nub_process_t pid, nub_addr_t addr, nub_size_t size, nub_bool_t hardware) 1194 { 1195 MachProcessSP procSP; 1196 if (GetProcessSP (pid, procSP)) 1197 return procSP->CreateBreakpoint(addr, size, hardware) != NULL; 1198 return false; 1199 } 1200 1201 nub_bool_t 1202 DNBBreakpointClear (nub_process_t pid, nub_addr_t addr) 1203 { 1204 MachProcessSP procSP; 1205 if (GetProcessSP (pid, procSP)) 1206 return procSP->DisableBreakpoint(addr, true); 1207 return false; // Failed 1208 } 1209 1210 1211 //---------------------------------------------------------------------- 1212 // Watchpoints 1213 //---------------------------------------------------------------------- 1214 nub_bool_t 1215 DNBWatchpointSet (nub_process_t pid, nub_addr_t addr, nub_size_t size, uint32_t watch_flags, nub_bool_t hardware) 1216 { 1217 MachProcessSP procSP; 1218 if (GetProcessSP (pid, procSP)) 1219 return procSP->CreateWatchpoint(addr, size, watch_flags, hardware) != NULL; 1220 return false; 1221 } 1222 1223 nub_bool_t 1224 DNBWatchpointClear (nub_process_t pid, nub_addr_t addr) 1225 { 1226 MachProcessSP procSP; 1227 if (GetProcessSP (pid, procSP)) 1228 return procSP->DisableWatchpoint(addr, true); 1229 return false; // Failed 1230 } 1231 1232 //---------------------------------------------------------------------- 1233 // Return the number of supported hardware watchpoints. 1234 //---------------------------------------------------------------------- 1235 uint32_t 1236 DNBWatchpointGetNumSupportedHWP (nub_process_t pid) 1237 { 1238 MachProcessSP procSP; 1239 if (GetProcessSP (pid, procSP)) 1240 return procSP->GetNumSupportedHardwareWatchpoints(); 1241 return 0; 1242 } 1243 1244 //---------------------------------------------------------------------- 1245 // Read memory in the address space of process PID. This call will take 1246 // care of setting and restoring permissions and breaking up the memory 1247 // read into multiple chunks as required. 1248 // 1249 // RETURNS: number of bytes actually read 1250 //---------------------------------------------------------------------- 1251 nub_size_t 1252 DNBProcessMemoryRead (nub_process_t pid, nub_addr_t addr, nub_size_t size, void *buf) 1253 { 1254 MachProcessSP procSP; 1255 if (GetProcessSP (pid, procSP)) 1256 return procSP->ReadMemory(addr, size, buf); 1257 return 0; 1258 } 1259 1260 uint64_t 1261 DNBProcessMemoryReadInteger (nub_process_t pid, nub_addr_t addr, nub_size_t integer_size, uint64_t fail_value) 1262 { 1263 union Integers 1264 { 1265 uint8_t u8; 1266 uint16_t u16; 1267 uint32_t u32; 1268 uint64_t u64; 1269 }; 1270 1271 if (integer_size <= sizeof(uint64_t)) 1272 { 1273 Integers ints; 1274 if (DNBProcessMemoryRead(pid, addr, integer_size, &ints) == integer_size) 1275 { 1276 switch (integer_size) 1277 { 1278 case 1: return ints.u8; 1279 case 2: return ints.u16; 1280 case 3: return ints.u32 & 0xffffffu; 1281 case 4: return ints.u32; 1282 case 5: return ints.u32 & 0x000000ffffffffffull; 1283 case 6: return ints.u32 & 0x0000ffffffffffffull; 1284 case 7: return ints.u32 & 0x00ffffffffffffffull; 1285 case 8: return ints.u64; 1286 } 1287 } 1288 } 1289 return fail_value; 1290 1291 } 1292 1293 nub_addr_t 1294 DNBProcessMemoryReadPointer (nub_process_t pid, nub_addr_t addr) 1295 { 1296 cpu_type_t cputype = DNBProcessGetCPUType (pid); 1297 if (cputype) 1298 { 1299 const nub_size_t pointer_size = (cputype & CPU_ARCH_ABI64) ? 8 : 4; 1300 return DNBProcessMemoryReadInteger(pid, addr, pointer_size, 0); 1301 } 1302 return 0; 1303 1304 } 1305 1306 std::string 1307 DNBProcessMemoryReadCString (nub_process_t pid, nub_addr_t addr) 1308 { 1309 std::string cstr; 1310 char buffer[256]; 1311 const nub_size_t max_buffer_cstr_length = sizeof(buffer)-1; 1312 buffer[max_buffer_cstr_length] = '\0'; 1313 nub_size_t length = 0; 1314 nub_addr_t curr_addr = addr; 1315 do 1316 { 1317 nub_size_t bytes_read = DNBProcessMemoryRead(pid, curr_addr, max_buffer_cstr_length, buffer); 1318 if (bytes_read == 0) 1319 break; 1320 length = strlen(buffer); 1321 cstr.append(buffer, length); 1322 curr_addr += length; 1323 } while (length == max_buffer_cstr_length); 1324 return cstr; 1325 } 1326 1327 std::string 1328 DNBProcessMemoryReadCStringFixed (nub_process_t pid, nub_addr_t addr, nub_size_t fixed_length) 1329 { 1330 std::string cstr; 1331 char buffer[fixed_length+1]; 1332 buffer[fixed_length] = '\0'; 1333 nub_size_t bytes_read = DNBProcessMemoryRead(pid, addr, fixed_length, buffer); 1334 if (bytes_read > 0) 1335 cstr.assign(buffer); 1336 return cstr; 1337 } 1338 1339 1340 //---------------------------------------------------------------------- 1341 // Write memory to the address space of process PID. This call will take 1342 // care of setting and restoring permissions and breaking up the memory 1343 // write into multiple chunks as required. 1344 // 1345 // RETURNS: number of bytes actually written 1346 //---------------------------------------------------------------------- 1347 nub_size_t 1348 DNBProcessMemoryWrite (nub_process_t pid, nub_addr_t addr, nub_size_t size, const void *buf) 1349 { 1350 MachProcessSP procSP; 1351 if (GetProcessSP (pid, procSP)) 1352 return procSP->WriteMemory(addr, size, buf); 1353 return 0; 1354 } 1355 1356 nub_addr_t 1357 DNBProcessMemoryAllocate (nub_process_t pid, nub_size_t size, uint32_t permissions) 1358 { 1359 MachProcessSP procSP; 1360 if (GetProcessSP (pid, procSP)) 1361 return procSP->Task().AllocateMemory (size, permissions); 1362 return 0; 1363 } 1364 1365 nub_bool_t 1366 DNBProcessMemoryDeallocate (nub_process_t pid, nub_addr_t addr) 1367 { 1368 MachProcessSP procSP; 1369 if (GetProcessSP (pid, procSP)) 1370 return procSP->Task().DeallocateMemory (addr); 1371 return 0; 1372 } 1373 1374 //---------------------------------------------------------------------- 1375 // Find attributes of the memory region that contains ADDR for process PID, 1376 // if possible, and return a string describing those attributes. 1377 // 1378 // Returns 1 if we could find attributes for this region and OUTBUF can 1379 // be sent to the remote debugger. 1380 // 1381 // Returns 0 if we couldn't find the attributes for a region of memory at 1382 // that address and OUTBUF should not be sent. 1383 // 1384 // Returns -1 if this platform cannot look up information about memory regions 1385 // or if we do not yet have a valid launched process. 1386 // 1387 //---------------------------------------------------------------------- 1388 int 1389 DNBProcessMemoryRegionInfo (nub_process_t pid, nub_addr_t addr, DNBRegionInfo *region_info) 1390 { 1391 MachProcessSP procSP; 1392 if (GetProcessSP (pid, procSP)) 1393 return procSP->Task().GetMemoryRegionInfo (addr, region_info); 1394 1395 return -1; 1396 } 1397 1398 std::string 1399 DNBProcessGetProfileData (nub_process_t pid, DNBProfileDataScanType scanType) 1400 { 1401 MachProcessSP procSP; 1402 if (GetProcessSP (pid, procSP)) 1403 return procSP->Task().GetProfileData(scanType); 1404 1405 return std::string(""); 1406 } 1407 1408 nub_bool_t 1409 DNBProcessSetEnableAsyncProfiling (nub_process_t pid, nub_bool_t enable, uint64_t interval_usec, DNBProfileDataScanType scan_type) 1410 { 1411 MachProcessSP procSP; 1412 if (GetProcessSP (pid, procSP)) 1413 { 1414 procSP->SetEnableAsyncProfiling(enable, interval_usec, scan_type); 1415 return true; 1416 } 1417 1418 return false; 1419 } 1420 1421 //---------------------------------------------------------------------- 1422 // Get the number of threads for the specified process. 1423 //---------------------------------------------------------------------- 1424 nub_size_t 1425 DNBProcessGetNumThreads (nub_process_t pid) 1426 { 1427 MachProcessSP procSP; 1428 if (GetProcessSP (pid, procSP)) 1429 return procSP->GetNumThreads(); 1430 return 0; 1431 } 1432 1433 //---------------------------------------------------------------------- 1434 // Get the thread ID of the current thread. 1435 //---------------------------------------------------------------------- 1436 nub_thread_t 1437 DNBProcessGetCurrentThread (nub_process_t pid) 1438 { 1439 MachProcessSP procSP; 1440 if (GetProcessSP (pid, procSP)) 1441 return procSP->GetCurrentThread(); 1442 return 0; 1443 } 1444 1445 //---------------------------------------------------------------------- 1446 // Get the mach port number of the current thread. 1447 //---------------------------------------------------------------------- 1448 nub_thread_t 1449 DNBProcessGetCurrentThreadMachPort (nub_process_t pid) 1450 { 1451 MachProcessSP procSP; 1452 if (GetProcessSP (pid, procSP)) 1453 return procSP->GetCurrentThreadMachPort(); 1454 return 0; 1455 } 1456 1457 //---------------------------------------------------------------------- 1458 // Change the current thread. 1459 //---------------------------------------------------------------------- 1460 nub_thread_t 1461 DNBProcessSetCurrentThread (nub_process_t pid, nub_thread_t tid) 1462 { 1463 MachProcessSP procSP; 1464 if (GetProcessSP (pid, procSP)) 1465 return procSP->SetCurrentThread (tid); 1466 return INVALID_NUB_THREAD; 1467 } 1468 1469 1470 //---------------------------------------------------------------------- 1471 // Dump a string describing a thread's stop reason to the specified file 1472 // handle 1473 //---------------------------------------------------------------------- 1474 nub_bool_t 1475 DNBThreadGetStopReason (nub_process_t pid, nub_thread_t tid, struct DNBThreadStopInfo *stop_info) 1476 { 1477 MachProcessSP procSP; 1478 if (GetProcessSP (pid, procSP)) 1479 return procSP->GetThreadStoppedReason (tid, stop_info); 1480 return false; 1481 } 1482 1483 //---------------------------------------------------------------------- 1484 // Return string description for the specified thread. 1485 // 1486 // RETURNS: NULL if the thread isn't valid, else a NULL terminated C 1487 // string from a static buffer that must be copied prior to subsequent 1488 // calls. 1489 //---------------------------------------------------------------------- 1490 const char * 1491 DNBThreadGetInfo (nub_process_t pid, nub_thread_t tid) 1492 { 1493 MachProcessSP procSP; 1494 if (GetProcessSP (pid, procSP)) 1495 return procSP->GetThreadInfo (tid); 1496 return NULL; 1497 } 1498 1499 //---------------------------------------------------------------------- 1500 // Get the thread ID given a thread index. 1501 //---------------------------------------------------------------------- 1502 nub_thread_t 1503 DNBProcessGetThreadAtIndex (nub_process_t pid, size_t thread_idx) 1504 { 1505 MachProcessSP procSP; 1506 if (GetProcessSP (pid, procSP)) 1507 return procSP->GetThreadAtIndex (thread_idx); 1508 return INVALID_NUB_THREAD; 1509 } 1510 1511 //---------------------------------------------------------------------- 1512 // Do whatever is needed to sync the thread's register state with it's kernel values. 1513 //---------------------------------------------------------------------- 1514 nub_bool_t 1515 DNBProcessSyncThreadState (nub_process_t pid, nub_thread_t tid) 1516 { 1517 MachProcessSP procSP; 1518 if (GetProcessSP (pid, procSP)) 1519 return procSP->SyncThreadState (tid); 1520 return false; 1521 1522 } 1523 1524 nub_addr_t 1525 DNBProcessGetSharedLibraryInfoAddress (nub_process_t pid) 1526 { 1527 MachProcessSP procSP; 1528 DNBError err; 1529 if (GetProcessSP (pid, procSP)) 1530 return procSP->Task().GetDYLDAllImageInfosAddress (err); 1531 return INVALID_NUB_ADDRESS; 1532 } 1533 1534 1535 nub_bool_t 1536 DNBProcessSharedLibrariesUpdated(nub_process_t pid) 1537 { 1538 MachProcessSP procSP; 1539 if (GetProcessSP (pid, procSP)) 1540 { 1541 procSP->SharedLibrariesUpdated (); 1542 return true; 1543 } 1544 return false; 1545 } 1546 1547 //---------------------------------------------------------------------- 1548 // Get the current shared library information for a process. Only return 1549 // the shared libraries that have changed since the last shared library 1550 // state changed event if only_changed is non-zero. 1551 //---------------------------------------------------------------------- 1552 nub_size_t 1553 DNBProcessGetSharedLibraryInfo (nub_process_t pid, nub_bool_t only_changed, struct DNBExecutableImageInfo **image_infos) 1554 { 1555 MachProcessSP procSP; 1556 if (GetProcessSP (pid, procSP)) 1557 return procSP->CopyImageInfos (image_infos, only_changed); 1558 1559 // If we have no process, then return NULL for the shared library info 1560 // and zero for shared library count 1561 *image_infos = NULL; 1562 return 0; 1563 } 1564 1565 uint32_t 1566 DNBGetRegisterCPUType() 1567 { 1568 return DNBArchProtocol::GetRegisterCPUType (); 1569 1570 } 1571 //---------------------------------------------------------------------- 1572 // Get the register set information for a specific thread. 1573 //---------------------------------------------------------------------- 1574 const DNBRegisterSetInfo * 1575 DNBGetRegisterSetInfo (nub_size_t *num_reg_sets) 1576 { 1577 return DNBArchProtocol::GetRegisterSetInfo (num_reg_sets); 1578 } 1579 1580 1581 //---------------------------------------------------------------------- 1582 // Read a register value by register set and register index. 1583 //---------------------------------------------------------------------- 1584 nub_bool_t 1585 DNBThreadGetRegisterValueByID (nub_process_t pid, nub_thread_t tid, uint32_t set, uint32_t reg, DNBRegisterValue *value) 1586 { 1587 MachProcessSP procSP; 1588 ::bzero (value, sizeof(DNBRegisterValue)); 1589 if (GetProcessSP (pid, procSP)) 1590 { 1591 if (tid != INVALID_NUB_THREAD) 1592 return procSP->GetRegisterValue (tid, set, reg, value); 1593 } 1594 return false; 1595 } 1596 1597 nub_bool_t 1598 DNBThreadSetRegisterValueByID (nub_process_t pid, nub_thread_t tid, uint32_t set, uint32_t reg, const DNBRegisterValue *value) 1599 { 1600 if (tid != INVALID_NUB_THREAD) 1601 { 1602 MachProcessSP procSP; 1603 if (GetProcessSP (pid, procSP)) 1604 return procSP->SetRegisterValue (tid, set, reg, value); 1605 } 1606 return false; 1607 } 1608 1609 nub_size_t 1610 DNBThreadGetRegisterContext (nub_process_t pid, nub_thread_t tid, void *buf, size_t buf_len) 1611 { 1612 MachProcessSP procSP; 1613 if (GetProcessSP (pid, procSP)) 1614 { 1615 if (tid != INVALID_NUB_THREAD) 1616 return procSP->GetThreadList().GetRegisterContext (tid, buf, buf_len); 1617 } 1618 ::bzero (buf, buf_len); 1619 return 0; 1620 1621 } 1622 1623 nub_size_t 1624 DNBThreadSetRegisterContext (nub_process_t pid, nub_thread_t tid, const void *buf, size_t buf_len) 1625 { 1626 MachProcessSP procSP; 1627 if (GetProcessSP (pid, procSP)) 1628 { 1629 if (tid != INVALID_NUB_THREAD) 1630 return procSP->GetThreadList().SetRegisterContext (tid, buf, buf_len); 1631 } 1632 return 0; 1633 } 1634 1635 uint32_t 1636 DNBThreadSaveRegisterState (nub_process_t pid, nub_thread_t tid) 1637 { 1638 if (tid != INVALID_NUB_THREAD) 1639 { 1640 MachProcessSP procSP; 1641 if (GetProcessSP (pid, procSP)) 1642 return procSP->GetThreadList().SaveRegisterState (tid); 1643 } 1644 return 0; 1645 } 1646 nub_bool_t 1647 DNBThreadRestoreRegisterState (nub_process_t pid, nub_thread_t tid, uint32_t save_id) 1648 { 1649 if (tid != INVALID_NUB_THREAD) 1650 { 1651 MachProcessSP procSP; 1652 if (GetProcessSP (pid, procSP)) 1653 return procSP->GetThreadList().RestoreRegisterState (tid, save_id); 1654 } 1655 return false; 1656 } 1657 1658 1659 1660 //---------------------------------------------------------------------- 1661 // Read a register value by name. 1662 //---------------------------------------------------------------------- 1663 nub_bool_t 1664 DNBThreadGetRegisterValueByName (nub_process_t pid, nub_thread_t tid, uint32_t reg_set, const char *reg_name, DNBRegisterValue *value) 1665 { 1666 MachProcessSP procSP; 1667 ::bzero (value, sizeof(DNBRegisterValue)); 1668 if (GetProcessSP (pid, procSP)) 1669 { 1670 const struct DNBRegisterSetInfo *set_info; 1671 nub_size_t num_reg_sets = 0; 1672 set_info = DNBGetRegisterSetInfo (&num_reg_sets); 1673 if (set_info) 1674 { 1675 uint32_t set = reg_set; 1676 uint32_t reg; 1677 if (set == REGISTER_SET_ALL) 1678 { 1679 for (set = 1; set < num_reg_sets; ++set) 1680 { 1681 for (reg = 0; reg < set_info[set].num_registers; ++reg) 1682 { 1683 if (strcasecmp(reg_name, set_info[set].registers[reg].name) == 0) 1684 return procSP->GetRegisterValue (tid, set, reg, value); 1685 } 1686 } 1687 } 1688 else 1689 { 1690 for (reg = 0; reg < set_info[set].num_registers; ++reg) 1691 { 1692 if (strcasecmp(reg_name, set_info[set].registers[reg].name) == 0) 1693 return procSP->GetRegisterValue (tid, set, reg, value); 1694 } 1695 } 1696 } 1697 } 1698 return false; 1699 } 1700 1701 1702 //---------------------------------------------------------------------- 1703 // Read a register set and register number from the register name. 1704 //---------------------------------------------------------------------- 1705 nub_bool_t 1706 DNBGetRegisterInfoByName (const char *reg_name, DNBRegisterInfo* info) 1707 { 1708 const struct DNBRegisterSetInfo *set_info; 1709 nub_size_t num_reg_sets = 0; 1710 set_info = DNBGetRegisterSetInfo (&num_reg_sets); 1711 if (set_info) 1712 { 1713 uint32_t set, reg; 1714 for (set = 1; set < num_reg_sets; ++set) 1715 { 1716 for (reg = 0; reg < set_info[set].num_registers; ++reg) 1717 { 1718 if (strcasecmp(reg_name, set_info[set].registers[reg].name) == 0) 1719 { 1720 *info = set_info[set].registers[reg]; 1721 return true; 1722 } 1723 } 1724 } 1725 1726 for (set = 1; set < num_reg_sets; ++set) 1727 { 1728 uint32_t reg; 1729 for (reg = 0; reg < set_info[set].num_registers; ++reg) 1730 { 1731 if (set_info[set].registers[reg].alt == NULL) 1732 continue; 1733 1734 if (strcasecmp(reg_name, set_info[set].registers[reg].alt) == 0) 1735 { 1736 *info = set_info[set].registers[reg]; 1737 return true; 1738 } 1739 } 1740 } 1741 } 1742 1743 ::bzero (info, sizeof(DNBRegisterInfo)); 1744 return false; 1745 } 1746 1747 1748 //---------------------------------------------------------------------- 1749 // Set the name to address callback function that this nub can use 1750 // for any name to address lookups that are needed. 1751 //---------------------------------------------------------------------- 1752 nub_bool_t 1753 DNBProcessSetNameToAddressCallback (nub_process_t pid, DNBCallbackNameToAddress callback, void *baton) 1754 { 1755 MachProcessSP procSP; 1756 if (GetProcessSP (pid, procSP)) 1757 { 1758 procSP->SetNameToAddressCallback (callback, baton); 1759 return true; 1760 } 1761 return false; 1762 } 1763 1764 1765 //---------------------------------------------------------------------- 1766 // Set the name to address callback function that this nub can use 1767 // for any name to address lookups that are needed. 1768 //---------------------------------------------------------------------- 1769 nub_bool_t 1770 DNBProcessSetSharedLibraryInfoCallback (nub_process_t pid, DNBCallbackCopyExecutableImageInfos callback, void *baton) 1771 { 1772 MachProcessSP procSP; 1773 if (GetProcessSP (pid, procSP)) 1774 { 1775 procSP->SetSharedLibraryInfoCallback (callback, baton); 1776 return true; 1777 } 1778 return false; 1779 } 1780 1781 nub_addr_t 1782 DNBProcessLookupAddress (nub_process_t pid, const char *name, const char *shlib) 1783 { 1784 MachProcessSP procSP; 1785 if (GetProcessSP (pid, procSP)) 1786 { 1787 return procSP->LookupSymbol (name, shlib); 1788 } 1789 return INVALID_NUB_ADDRESS; 1790 } 1791 1792 1793 nub_size_t 1794 DNBProcessGetAvailableSTDOUT (nub_process_t pid, char *buf, nub_size_t buf_size) 1795 { 1796 MachProcessSP procSP; 1797 if (GetProcessSP (pid, procSP)) 1798 return procSP->GetAvailableSTDOUT (buf, buf_size); 1799 return 0; 1800 } 1801 1802 nub_size_t 1803 DNBProcessGetAvailableSTDERR (nub_process_t pid, char *buf, nub_size_t buf_size) 1804 { 1805 MachProcessSP procSP; 1806 if (GetProcessSP (pid, procSP)) 1807 return procSP->GetAvailableSTDERR (buf, buf_size); 1808 return 0; 1809 } 1810 1811 nub_size_t 1812 DNBProcessGetAvailableProfileData (nub_process_t pid, char *buf, nub_size_t buf_size) 1813 { 1814 MachProcessSP procSP; 1815 if (GetProcessSP (pid, procSP)) 1816 return procSP->GetAsyncProfileData (buf, buf_size); 1817 return 0; 1818 } 1819 1820 nub_size_t 1821 DNBProcessGetStopCount (nub_process_t pid) 1822 { 1823 MachProcessSP procSP; 1824 if (GetProcessSP (pid, procSP)) 1825 return procSP->StopCount(); 1826 return 0; 1827 } 1828 1829 uint32_t 1830 DNBProcessGetCPUType (nub_process_t pid) 1831 { 1832 MachProcessSP procSP; 1833 if (GetProcessSP (pid, procSP)) 1834 return procSP->GetCPUType (); 1835 return 0; 1836 1837 } 1838 1839 nub_bool_t 1840 DNBResolveExecutablePath (const char *path, char *resolved_path, size_t resolved_path_size) 1841 { 1842 if (path == NULL || path[0] == '\0') 1843 return false; 1844 1845 char max_path[PATH_MAX]; 1846 std::string result; 1847 CFString::GlobPath(path, result); 1848 1849 if (result.empty()) 1850 result = path; 1851 1852 struct stat path_stat; 1853 if (::stat(path, &path_stat) == 0) 1854 { 1855 if ((path_stat.st_mode & S_IFMT) == S_IFDIR) 1856 { 1857 CFBundle bundle (path); 1858 CFReleaser<CFURLRef> url(bundle.CopyExecutableURL ()); 1859 if (url.get()) 1860 { 1861 if (::CFURLGetFileSystemRepresentation (url.get(), true, (UInt8*)resolved_path, resolved_path_size)) 1862 return true; 1863 } 1864 } 1865 } 1866 1867 if (realpath(path, max_path)) 1868 { 1869 // Found the path relatively... 1870 ::strncpy(resolved_path, max_path, resolved_path_size); 1871 return strlen(resolved_path) + 1 < resolved_path_size; 1872 } 1873 else 1874 { 1875 // Not a relative path, check the PATH environment variable if the 1876 const char *PATH = getenv("PATH"); 1877 if (PATH) 1878 { 1879 const char *curr_path_start = PATH; 1880 const char *curr_path_end; 1881 while (curr_path_start && *curr_path_start) 1882 { 1883 curr_path_end = strchr(curr_path_start, ':'); 1884 if (curr_path_end == NULL) 1885 { 1886 result.assign(curr_path_start); 1887 curr_path_start = NULL; 1888 } 1889 else if (curr_path_end > curr_path_start) 1890 { 1891 size_t len = curr_path_end - curr_path_start; 1892 result.assign(curr_path_start, len); 1893 curr_path_start += len + 1; 1894 } 1895 else 1896 break; 1897 1898 result += '/'; 1899 result += path; 1900 struct stat s; 1901 if (stat(result.c_str(), &s) == 0) 1902 { 1903 ::strncpy(resolved_path, result.c_str(), resolved_path_size); 1904 return result.size() + 1 < resolved_path_size; 1905 } 1906 } 1907 } 1908 } 1909 return false; 1910 } 1911 1912 1913 void 1914 DNBInitialize() 1915 { 1916 DNBLogThreadedIf (LOG_PROCESS, "DNBInitialize ()"); 1917 #if defined (__i386__) || defined (__x86_64__) 1918 DNBArchImplI386::Initialize(); 1919 DNBArchImplX86_64::Initialize(); 1920 #elif defined (__arm__) || defined (__arm64__) || defined (__aarch64__) 1921 DNBArchMachARM::Initialize(); 1922 DNBArchMachARM64::Initialize(); 1923 #endif 1924 } 1925 1926 void 1927 DNBTerminate() 1928 { 1929 } 1930 1931 nub_bool_t 1932 DNBSetArchitecture (const char *arch) 1933 { 1934 if (arch && arch[0]) 1935 { 1936 if (strcasecmp (arch, "i386") == 0) 1937 return DNBArchProtocol::SetArchitecture (CPU_TYPE_I386); 1938 else if ((strcasecmp (arch, "x86_64") == 0) || (strcasecmp (arch, "x86_64h") == 0)) 1939 return DNBArchProtocol::SetArchitecture (CPU_TYPE_X86_64); 1940 else if (strstr (arch, "arm64") == arch || strstr (arch, "armv8") == arch || strstr (arch, "aarch64") == arch) 1941 return DNBArchProtocol::SetArchitecture (CPU_TYPE_ARM64); 1942 else if (strstr (arch, "arm") == arch) 1943 return DNBArchProtocol::SetArchitecture (CPU_TYPE_ARM); 1944 } 1945 return false; 1946 } 1947