1 /* 2 * Copyright 2005-2011, Ingo Weinhold, ingo_weinhold@gmx.de. 3 * Copyright 2013, Rene Gollent, rene@gollent.com. 4 * Copyright 2015, Axel Dörfler, axeld@pinc-software.de. 5 * Distributed under the terms of the MIT License. 6 */ 7 8 9 #include <ctype.h> 10 #include <stdio.h> 11 #include <stdlib.h> 12 #include <string.h> 13 #include <strings.h> 14 #include <errno.h> 15 #include <signal.h> 16 17 #include <algorithm> 18 #include <map> 19 #include <string> 20 #include <vector> 21 22 #include <debugger.h> 23 #include <image.h> 24 #include <syscalls.h> 25 26 #include "debug_utils.h" 27 28 #include "Context.h" 29 #include "MemoryReader.h" 30 #include "Syscall.h" 31 #include "TypeHandler.h" 32 33 34 using std::map; 35 using std::string; 36 using std::vector; 37 38 39 struct syscall_stats { 40 bigtime_t time; 41 uint32 count; 42 }; 43 44 45 extern void get_syscalls0(vector<Syscall*> &syscalls); 46 extern void get_syscalls1(vector<Syscall*> &syscalls); 47 extern void get_syscalls2(vector<Syscall*> &syscalls); 48 extern void get_syscalls3(vector<Syscall*> &syscalls); 49 extern void get_syscalls4(vector<Syscall*> &syscalls); 50 extern void get_syscalls5(vector<Syscall*> &syscalls); 51 extern void get_syscalls6(vector<Syscall*> &syscalls); 52 extern void get_syscalls7(vector<Syscall*> &syscalls); 53 extern void get_syscalls8(vector<Syscall*> &syscalls); 54 extern void get_syscalls9(vector<Syscall*> &syscalls); 55 extern void get_syscalls10(vector<Syscall*> &syscalls); 56 extern void get_syscalls11(vector<Syscall*> &syscalls); 57 extern void get_syscalls12(vector<Syscall*> &syscalls); 58 extern void get_syscalls13(vector<Syscall*> &syscalls); 59 extern void get_syscalls14(vector<Syscall*> &syscalls); 60 extern void get_syscalls15(vector<Syscall*> &syscalls); 61 extern void get_syscalls16(vector<Syscall*> &syscalls); 62 extern void get_syscalls17(vector<Syscall*> &syscalls); 63 extern void get_syscalls18(vector<Syscall*> &syscalls); 64 extern void get_syscalls19(vector<Syscall*> &syscalls); 65 66 67 extern const char *__progname; 68 static const char *kCommandName = __progname; 69 70 71 // usage 72 static const char *kUsage = 73 "Usage: %s [ <options> ] [ <thread or team ID> | <executable with args> ]\n" 74 "\n" 75 "Traces the syscalls of a thread or a team. If an executable with\n" 76 "arguments is supplied, it is loaded and it's main thread traced.\n" 77 "\n" 78 "Options:\n" 79 " -a - Don't print syscall arguments.\n" 80 " -c - Record and dump syscall usage statistics.\n" 81 " -C - Same as -c, but also print syscalls as usual.\n" 82 " -d <name> - Filter the types that have their contents retrieved.\n" 83 " <name> is one of: strings, enums, simple, complex or\n" 84 " pointer_values\n" 85 " -e <names> - Filter the syscalls.\n" 86 " <names> is a comma-separated list of names which can be:\n" 87 " * a syscall name\n" 88 " * %%memory for memory mapping related syscalls\n" 89 " * %%network or %%net for network related syscalls\n" 90 " -f - Fast mode. Syscall arguments contents aren't retrieved.\n" 91 " -h, --help - Print this text.\n" 92 " -i - Print integers in decimal format instead of hexadecimal.\n" 93 " -l - Also trace loading the executable. Only considered when\n" 94 " an executable is provided.\n" 95 " --no-color - Don't colorize output.\n" 96 " -r - Don't print syscall return values.\n" 97 " -s - Also trace all threads spawned by the supplied thread,\n" 98 " respectively the loaded executable's main thread.\n" 99 " -t - Also recursively trace all teams created by a traced\n" 100 " thread or team.\n" 101 " -T - Trace all threads of the supplied or loaded executable's\n" 102 " team. If an ID is supplied, it is interpreted as a team\n" 103 " ID.\n" 104 " -o <file> - directs output into the specified file.\n" 105 " -S - prints output to serial debug line.\n" 106 " -g - turns off signal tracing.\n" 107 ; 108 109 110 // terminal color escape sequences 111 // (http://www.dee.ufcg.edu.br/~rrbrandt/tools/ansi.html) 112 static const char *kTerminalTextNormal = "\33[0m"; 113 static const char *kTerminalTextRed = "\33[31m"; 114 static const char *kTerminalTextMagenta = "\33[35m"; 115 static const char *kTerminalTextBlue = "\33[34m"; 116 117 118 // signal names 119 static const char *kSignalName[] = { 120 /* 0 */ "SIG0", 121 /* 1 */ "SIGHUP", 122 /* 2 */ "SIGINT", 123 /* 3 */ "SIGQUIT", 124 /* 4 */ "SIGILL", 125 /* 5 */ "SIGCHLD", 126 /* 6 */ "SIGABRT", 127 /* 7 */ "SIGPIPE", 128 /* 8 */ "SIGFPE", 129 /* 9 */ "SIGKILL", 130 /* 10 */ "SIGSTOP", 131 /* 11 */ "SIGSEGV", 132 /* 12 */ "SIGCONT", 133 /* 13 */ "SIGTSTP", 134 /* 14 */ "SIGALRM", 135 /* 15 */ "SIGTERM", 136 /* 16 */ "SIGTTIN", 137 /* 17 */ "SIGTTOU", 138 /* 18 */ "SIGUSR1", 139 /* 19 */ "SIGUSR2", 140 /* 20 */ "SIGWINCH", 141 /* 21 */ "SIGKILLTHR", 142 /* 22 */ "SIGTRAP", 143 /* 23 */ "SIGPOLL", 144 /* 24 */ "SIGPROF", 145 /* 25 */ "SIGSYS", 146 /* 26 */ "SIGURG", 147 /* 27 */ "SIGVTALRM", 148 /* 28 */ "SIGXCPU", 149 /* 29 */ "SIGXFSZ", 150 /* 30 */ "SIGBUS", 151 /* 31 */ "SIGRESERVED1", 152 /* 32 */ "SIGRESERVED2", 153 }; 154 155 156 // command line args 157 static int sArgc; 158 static const char *const *sArgv; 159 160 // syscalls 161 static vector<Syscall*> sSyscallVector; 162 static map<string, Syscall*> sSyscallMap; 163 164 // statistics 165 typedef map<string, syscall_stats> StatsMap; 166 static StatsMap sSyscallStats; 167 static bigtime_t sSyscallTime; 168 169 170 struct Team { 171 Team(team_id id) 172 : 173 fID(id), 174 fNubPort(-1) 175 { 176 } 177 178 team_id ID() const 179 { 180 return fID; 181 } 182 183 port_id NubPort() const 184 { 185 return fNubPort; 186 } 187 188 MemoryReader& GetMemoryReader() 189 { 190 return fMemoryReader; 191 } 192 193 status_t InstallDebugger(port_id debuggerPort, bool traceTeam, 194 bool traceChildTeams, bool traceSignal) 195 { 196 fNubPort = install_team_debugger(fID, debuggerPort); 197 if (fNubPort < 0) { 198 fprintf(stderr, "%s: Failed to install team debugger: %s\n", 199 kCommandName, strerror(fNubPort)); 200 return fNubPort; 201 } 202 203 // set team debugging flags 204 int32 teamDebugFlags = 205 (traceTeam ? B_TEAM_DEBUG_PRE_SYSCALL | B_TEAM_DEBUG_POST_SYSCALL : 0) 206 | (traceChildTeams ? B_TEAM_DEBUG_TEAM_CREATION : 0) 207 | (traceSignal ? B_TEAM_DEBUG_SIGNALS : 0); 208 if (set_team_debugging_flags(fNubPort, teamDebugFlags) != B_OK) 209 exit(1); 210 211 return fMemoryReader.Init(fNubPort); 212 } 213 214 private: 215 team_id fID; 216 port_id fNubPort; 217 MemoryReader fMemoryReader; 218 }; 219 220 221 static void 222 print_usage(bool error) 223 { 224 // print usage 225 fprintf((error ? stderr : stdout), kUsage, kCommandName); 226 } 227 228 229 static void 230 print_usage_and_exit(bool error) 231 { 232 print_usage(error); 233 exit(error ? 1 : 0); 234 } 235 236 237 static bool 238 get_id(const char *str, int32 &id) 239 { 240 int32 len = strlen(str); 241 for (int32 i = 0; i < len; i++) { 242 if (!isdigit(str[i])) 243 return false; 244 } 245 246 id = atol(str); 247 return true; 248 } 249 250 251 Syscall * 252 get_syscall(const char *name) 253 { 254 map<string, Syscall *>::const_iterator i = sSyscallMap.find(name); 255 if (i == sSyscallMap.end()) 256 return NULL; 257 258 return i->second; 259 } 260 261 262 static void 263 patch_syscalls() 264 { 265 // instead of having this done here manually we should either add the 266 // patching step to gensyscalls also manually or add metadata to 267 // kernel/syscalls.h and have it parsed automatically 268 extern void patch_fcntl(); 269 extern void patch_ioctl(); 270 271 patch_fcntl(); 272 patch_ioctl(); 273 274 Syscall *poll = get_syscall("_kern_poll"); 275 poll->ParameterAt(0)->SetInOut(true); 276 277 Syscall *select = get_syscall("_kern_select"); 278 select->ParameterAt(1)->SetInOut(true); 279 select->ParameterAt(2)->SetInOut(true); 280 select->ParameterAt(3)->SetInOut(true); 281 282 Syscall *wait = get_syscall("_kern_wait_for_child"); 283 wait->ParameterAt(2)->SetOut(true); 284 wait->ParameterAt(3)->SetOut(true); 285 } 286 287 288 static void 289 init_syscalls() 290 { 291 // init the syscall vector 292 get_syscalls0(sSyscallVector); 293 get_syscalls1(sSyscallVector); 294 get_syscalls2(sSyscallVector); 295 get_syscalls3(sSyscallVector); 296 get_syscalls4(sSyscallVector); 297 get_syscalls5(sSyscallVector); 298 get_syscalls6(sSyscallVector); 299 get_syscalls7(sSyscallVector); 300 get_syscalls8(sSyscallVector); 301 get_syscalls9(sSyscallVector); 302 get_syscalls10(sSyscallVector); 303 get_syscalls11(sSyscallVector); 304 get_syscalls12(sSyscallVector); 305 get_syscalls13(sSyscallVector); 306 get_syscalls14(sSyscallVector); 307 get_syscalls15(sSyscallVector); 308 get_syscalls16(sSyscallVector); 309 get_syscalls17(sSyscallVector); 310 get_syscalls18(sSyscallVector); 311 get_syscalls19(sSyscallVector); 312 313 // init the syscall map 314 int32 count = sSyscallVector.size(); 315 for (int32 i = 0; i < count; i++) { 316 Syscall *syscall = sSyscallVector[i]; 317 sSyscallMap[syscall->Name()] = syscall; 318 } 319 320 patch_syscalls(); 321 } 322 323 324 static void 325 record_syscall_stats(const Syscall& syscall, debug_post_syscall& message) 326 { 327 syscall_stats& stats = sSyscallStats[syscall.Name()]; 328 stats.count++; 329 330 bigtime_t time = message.end_time - message.start_time; 331 stats.time += time; 332 sSyscallTime += time; 333 } 334 335 336 static void 337 print_buffer(FILE *outputFile, char* buffer, int32 length) 338 { 339 // output either to file or serial debug line 340 if (outputFile != NULL) 341 fwrite(buffer, length, 1, outputFile); 342 else 343 _kern_debug_output(buffer); 344 } 345 346 347 static void 348 print_to_string(char **_buffer, int32 *_length, const char *format, ...) 349 { 350 va_list list; 351 va_start(list, format); 352 ssize_t length = vsnprintf(*_buffer, *_length, format, list); 353 va_end(list); 354 355 *_buffer += length; 356 *_length -= length; 357 } 358 359 360 static void 361 print_syscall(FILE *outputFile, Syscall* syscall, debug_pre_syscall &message, 362 MemoryReader &memoryReader, bool printArguments, uint32 contentsFlags, 363 bool colorize, bool decimal, thread_id ¤tThreadID) 364 { 365 char buffer[4096], *string = buffer; 366 int32 length = (int32)sizeof(buffer); 367 368 Context ctx(syscall, (char *)message.args, memoryReader, 369 contentsFlags | Context::INPUT_VALUES, decimal); 370 371 if (currentThreadID != message.origin.thread) { 372 if (currentThreadID != -1) 373 print_to_string(&string, &length, " <unfinished ...>\n"); 374 currentThreadID = message.origin.thread; 375 } 376 377 // print syscall name, without the "_kern_" 378 if (colorize) { 379 print_to_string(&string, &length, "[%6" B_PRId32 "] %s%s%s(", 380 message.origin.thread, kTerminalTextBlue, 381 syscall->Name().c_str() + 6, kTerminalTextNormal); 382 } else { 383 print_to_string(&string, &length, "[%6" B_PRId32 "] %s(", 384 message.origin.thread, syscall->Name().c_str() + 6); 385 } 386 387 // print arguments 388 if (printArguments) { 389 int32 count = syscall->CountParameters(); 390 for (int32 i = 0; i < count; i++) { 391 // get the value 392 Parameter *parameter = syscall->ParameterAt(i); 393 if (parameter->Out()) 394 continue; 395 TypeHandler *handler = parameter->Handler(); 396 ::string value = 397 handler->GetParameterValue(ctx, parameter, 398 ctx.GetValue(parameter)); 399 400 print_to_string(&string, &length, (i > 0 ? ", %s" : "%s"), 401 value.c_str()); 402 } 403 } 404 405 print_to_string(&string, &length, ")"); 406 407 print_buffer(outputFile, buffer, sizeof(buffer) - length); 408 } 409 410 411 static void 412 print_syscall(FILE *outputFile, Syscall* syscall, debug_post_syscall &message, 413 MemoryReader &memoryReader, bool printArguments, uint32 contentsFlags, 414 bool printReturnValue, bool colorize, bool decimal, 415 thread_id ¤tThreadID) 416 { 417 char buffer[4096], *string = buffer; 418 int32 length = (int32)sizeof(buffer); 419 bool threadChanged = false; 420 421 Context ctx(syscall, (char *)message.args, memoryReader, 422 contentsFlags | Context::OUTPUT_VALUES, decimal, message.return_value); 423 424 if (currentThreadID != message.origin.thread) { 425 if (currentThreadID != -1) { 426 print_to_string(&string, &length, " <unfinished ...>\n"); 427 } 428 threadChanged = true; 429 } 430 currentThreadID = -1; 431 432 // print return value 433 if (printReturnValue) { 434 if (threadChanged) { 435 // print syscall name, without the "_kern_" 436 if (colorize) { 437 print_to_string(&string, &length, "[%6" B_PRId32 "] <... " 438 "%s%s%s resumed> ", message.origin.thread, kTerminalTextBlue, 439 syscall->Name().c_str() + 6, kTerminalTextNormal); 440 } else { 441 print_to_string(&string, &length, "[%6" B_PRId32 "] <... %s" 442 " resumed> ", message.origin.thread, 443 syscall->Name().c_str() + 6); 444 } 445 } 446 Type *returnType = syscall->ReturnType(); 447 TypeHandler *handler = returnType->Handler(); 448 ::string value = handler->GetReturnValue(ctx, message.return_value); 449 if (value.length() > 0) { 450 print_to_string(&string, &length, " = %s", value.c_str()); 451 452 // if the return type is status_t or ssize_t, print human-readable 453 // error codes 454 if (returnType->TypeName() == "status_t" 455 || ((returnType->TypeName() == "ssize_t" 456 || returnType->TypeName() == "int") 457 && message.return_value < 0)) { 458 print_to_string(&string, &length, " %s", strerror(message.return_value)); 459 } 460 } 461 } 462 463 // print arguments 464 if (printArguments) { 465 int32 count = syscall->CountParameters(); 466 int added = 0; 467 print_to_string(&string, &length, " ("); 468 for (int32 i = 0; i < count; i++) { 469 // get the value 470 Parameter *parameter = syscall->ParameterAt(i); 471 if (!parameter->InOut() && !parameter->Out()) 472 continue; 473 TypeHandler *handler = parameter->Handler(); 474 ::string value = 475 handler->GetParameterValue(ctx, parameter, 476 ctx.GetValue(parameter)); 477 478 print_to_string(&string, &length, (added > 0 ? ", %s" : "%s"), 479 value.c_str()); 480 added++; 481 } 482 print_to_string(&string, &length, ")"); 483 } 484 485 if (colorize) { 486 print_to_string(&string, &length, " %s(%lld us)%s\n", kTerminalTextMagenta, 487 message.end_time - message.start_time, kTerminalTextNormal); 488 } else { 489 print_to_string(&string, &length, " (%lld us)\n", 490 message.end_time - message.start_time); 491 } 492 493 //for (int32 i = 0; i < 16; i++) { 494 // if (i % 4 == 0) { 495 // if (i > 0) 496 // printf("\n"); 497 // printf(" "); 498 // } else 499 // printf(" "); 500 // printf("%08lx", message.args[i]); 501 //} 502 //printf("\n"); 503 print_buffer(outputFile, buffer, sizeof(buffer) - length); 504 } 505 506 507 static const char * 508 signal_name(int signal) 509 { 510 if (signal >= 0 && signal <= SIGRESERVED2) 511 return kSignalName[signal]; 512 513 static char buffer[32]; 514 sprintf(buffer, "%d", signal); 515 return buffer; 516 } 517 518 519 static void 520 print_signal(FILE *outputFile, debug_signal_received &message, 521 bool colorize) 522 { 523 char buffer[4096], *string = buffer; 524 int32 length = (int32)sizeof(buffer); 525 int signalNumber = message.signal; 526 527 // print signal name 528 if (colorize) { 529 print_to_string(&string, &length, "[%6" B_PRId32 "] --- %s%s (%s) %s---\n", 530 message.origin.thread, kTerminalTextRed, signal_name(signalNumber), 531 strsignal(signalNumber), kTerminalTextNormal); 532 } else { 533 print_to_string(&string, &length, "[%6" B_PRId32 "] --- %s (%s) ---\n", 534 message.origin.thread, signal_name(signalNumber), 535 strsignal(signalNumber)); 536 } 537 538 print_buffer(outputFile, buffer, sizeof(buffer) - length); 539 } 540 541 542 static bool 543 compare_stats_by_time( 544 const std::pair<const std::string*, const syscall_stats*>& a, 545 const std::pair<const std::string*, const syscall_stats*>& b) 546 { 547 return a.second->time > b.second->time; 548 } 549 550 551 static void 552 print_stats(FILE* outputFile) 553 { 554 char buffer[4096], *string = buffer; 555 int32 length = (int32)sizeof(buffer); 556 557 typedef std::vector<std::pair<const std::string*, const syscall_stats*> > 558 StatsRefVector; 559 StatsRefVector calls; 560 StatsMap::const_iterator iterator = sSyscallStats.begin(); 561 for (; iterator != sSyscallStats.end(); iterator++) 562 calls.push_back(std::make_pair(&iterator->first, &iterator->second)); 563 564 // Sort calls by time spent 565 std::sort(calls.begin(), calls.end(), compare_stats_by_time); 566 567 print_to_string(&string, &length, "\n%-6s %-10s %-7s %-10s Syscall\n", 568 "Time %", "Usecs", "Calls", "Usecs/call"); 569 print_to_string(&string, &length, "------ ---------- ------- ---------- " 570 "--------------------\n"); 571 572 StatsRefVector::const_iterator callIterator = calls.begin(); 573 for (; callIterator != calls.end(); callIterator++) { 574 const syscall_stats& stats = *callIterator->second; 575 double percent = stats.time * 100.0 / sSyscallTime; 576 bigtime_t perCall = stats.time / stats.count; 577 578 print_to_string(&string, &length, "%6.2f %10" B_PRIu64 " %7" B_PRIu32 579 " %10" B_PRIu64 " %s\n", percent, stats.time, stats.count, perCall, 580 callIterator->first->c_str()); 581 } 582 583 print_buffer(outputFile, buffer, sizeof(buffer) - length); 584 } 585 586 587 int 588 main(int argc, const char *const *argv) 589 { 590 sArgc = argc; 591 sArgv = argv; 592 593 // parameters 594 const char *const *programArgs = NULL; 595 int32 programArgCount = 0; 596 bool printArguments = true; 597 bool colorize = true; 598 bool stats = false; 599 bool trace = true; 600 uint32 contentsFlags = 0; 601 bool decimalFormat = false; 602 bool fastMode = false; 603 bool traceLoading = false; 604 bool printReturnValues = true; 605 bool traceChildThreads = false; 606 bool traceTeam = false; 607 bool traceChildTeams = false; 608 bool traceSignal = true; 609 bool traceFilter = false; 610 FILE *outputFile = stdout; 611 612 // initialize our syscalls vector and map 613 init_syscalls(); 614 615 // parse arguments 616 for (int argi = 1; argi < argc; argi++) { 617 const char *arg = argv[argi]; 618 if (arg[0] == '-') { 619 // ToDo: improve option parsing so that ie. "-rsf" would also work 620 if (strcmp(arg, "-h") == 0 || strcmp(arg, "--help") == 0) { 621 print_usage_and_exit(false); 622 } else if (strcmp(arg, "-a") == 0) { 623 printArguments = false; 624 } else if (strcmp(arg, "-c") == 0) { 625 stats = true; 626 trace = false; 627 } else if (strcmp(arg, "-C") == 0) { 628 stats = true; 629 } else if (strcmp(arg, "--no-color") == 0) { 630 colorize = false; 631 } else if (strcmp(arg, "-d") == 0) { 632 const char *what = NULL; 633 634 if (arg[2] == '\0' 635 && argi + 1 < argc && argv[argi + 1][0] != '-') { 636 // next arg is what 637 what = argv[++argi]; 638 } else 639 print_usage_and_exit(true); 640 641 if (strcasecmp(what, "strings") == 0) 642 contentsFlags |= Context::STRINGS; 643 else if (strcasecmp(what, "enums") == 0) 644 contentsFlags |= Context::ENUMERATIONS; 645 else if (strcasecmp(what, "simple") == 0) 646 contentsFlags |= Context::SIMPLE_STRUCTS; 647 else if (strcasecmp(what, "complex") == 0) 648 contentsFlags |= Context::COMPLEX_STRUCTS; 649 else if (strcasecmp(what, "pointer_values") == 0) 650 contentsFlags |= Context::POINTER_VALUES; 651 else { 652 fprintf(stderr, "%s: Unknown content filter `%s'\n", 653 kCommandName, what); 654 exit(1); 655 } 656 } else if (strcmp(arg, "-e") == 0) { 657 traceFilter = true; 658 // read filter string 659 const char *filterString = NULL; 660 if (arg[2] == '=') { 661 // string follows 662 filterString = arg + 3; 663 } else if (arg[2] == '\0' 664 && argi + 1 < argc && argv[argi + 1][0] != '-') { 665 // next arg is string 666 filterString = argv[++argi]; 667 } else 668 print_usage_and_exit(true); 669 if (filterString != NULL) { 670 char* copy = strdup(filterString); 671 char *tok = strtok(copy, ","); 672 while (tok != NULL) { 673 if (tok[0] == '%') { 674 tok++; 675 // the following should be metadata in kernel/syscalls.h 676 if (strcmp(tok, "memory") == 0) { 677 sSyscallMap["clone_area"]->EnableTracing(true); 678 sSyscallMap["create_area"]->EnableTracing(true); 679 sSyscallMap["delete_area"]->EnableTracing(true); 680 sSyscallMap["find_area"]->EnableTracing(true); 681 sSyscallMap["resize_area"]->EnableTracing(true); 682 sSyscallMap["transfer_area"]->EnableTracing(true); 683 sSyscallMap["mlock"]->EnableTracing(true); 684 sSyscallMap["munlock"]->EnableTracing(true); 685 sSyscallMap["set_memory_protection"]->EnableTracing(true); 686 sSyscallMap["get_memory_properties"]->EnableTracing(true); 687 sSyscallMap["sync_memory"]->EnableTracing(true); 688 sSyscallMap["unmap_memory"]->EnableTracing(true); 689 sSyscallMap["memory_advice"]->EnableTracing(true); 690 sSyscallMap["reserve_address_range"]->EnableTracing(true); 691 sSyscallMap["unreserve_address_range"]->EnableTracing(true); 692 sSyscallMap["set_area_protection"]->EnableTracing(true); 693 sSyscallMap["map_file"]->EnableTracing(true); 694 } else if (strcmp(tok, "network") == 0 || strcmp(tok, "net") == 0) { 695 sSyscallMap["socket"]->EnableTracing(true); 696 sSyscallMap["bind"]->EnableTracing(true); 697 sSyscallMap["shutdown_socket"]->EnableTracing(true); 698 sSyscallMap["connect"]->EnableTracing(true); 699 sSyscallMap["listen"]->EnableTracing(true); 700 sSyscallMap["accept"]->EnableTracing(true); 701 sSyscallMap["recv"]->EnableTracing(true); 702 sSyscallMap["recvfrom"]->EnableTracing(true); 703 sSyscallMap["recvmsg"]->EnableTracing(true); 704 sSyscallMap["send"]->EnableTracing(true); 705 sSyscallMap["sendto"]->EnableTracing(true); 706 sSyscallMap["sendmsg"]->EnableTracing(true); 707 sSyscallMap["getsockopt"]->EnableTracing(true); 708 sSyscallMap["setsockopt"]->EnableTracing(true); 709 sSyscallMap["getpeername"]->EnableTracing(true); 710 sSyscallMap["getsockname"]->EnableTracing(true); 711 sSyscallMap["sockatmark"]->EnableTracing(true); 712 sSyscallMap["socketpair"]->EnableTracing(true); 713 sSyscallMap["get_next_socket_stat"]->EnableTracing(true); 714 } else 715 print_usage_and_exit(true); 716 } else { 717 char buffer[64]; 718 snprintf(buffer, sizeof(buffer), "_kern_%s", tok); 719 Syscall* syscall = get_syscall(buffer); 720 if (syscall == NULL) 721 print_usage_and_exit(true); 722 syscall->EnableTracing(true); 723 } 724 tok = strtok(NULL, ","); 725 } 726 free(copy); 727 } 728 } else if (strcmp(arg, "-f") == 0) { 729 fastMode = true; 730 } else if (strcmp(arg, "-i") == 0) { 731 decimalFormat = true; 732 } else if (strcmp(arg, "-l") == 0) { 733 traceLoading = true; 734 } else if (strcmp(arg, "-r") == 0) { 735 printReturnValues = false; 736 } else if (strcmp(arg, "-s") == 0) { 737 traceChildThreads = true; 738 } else if (strcmp(arg, "-t") == 0) { 739 traceChildTeams = true; 740 } else if (strcmp(arg, "-T") == 0) { 741 traceTeam = true; 742 } else if (strcmp(arg, "-g") == 0) { 743 traceSignal = false; 744 } else if (strcmp(arg, "-S") == 0) { 745 outputFile = NULL; 746 } else if (strncmp(arg, "-o", 2) == 0) { 747 // read filename 748 const char *filename = NULL; 749 if (arg[2] == '=') { 750 // name follows 751 filename = arg + 3; 752 } else if (arg[2] == '\0' 753 && argi + 1 < argc && argv[argi + 1][0] != '-') { 754 // next arg is name 755 filename = argv[++argi]; 756 } else 757 print_usage_and_exit(true); 758 759 outputFile = fopen(filename, "w+"); 760 if (outputFile == NULL) { 761 fprintf(stderr, "%s: Could not open `%s': %s\n", 762 kCommandName, filename, strerror(errno)); 763 exit(1); 764 } 765 } else { 766 print_usage_and_exit(true); 767 } 768 } else { 769 programArgs = argv + argi; 770 programArgCount = argc - argi; 771 break; 772 } 773 } 774 775 // check parameters 776 if (!programArgs) 777 print_usage_and_exit(true); 778 779 if (fastMode) 780 contentsFlags = 0; 781 else if (contentsFlags == 0) 782 contentsFlags = Context::ALL; 783 784 // don't colorize the output, if we don't have a terminal 785 if (outputFile == stdout) 786 colorize = colorize && isatty(STDOUT_FILENO); 787 else if (outputFile) 788 colorize = false; 789 790 // get thread/team to be debugged 791 thread_id threadID = -1; 792 team_id teamID = -1; 793 if (programArgCount > 1 794 || !get_id(*programArgs, (traceTeam ? teamID : threadID))) { 795 // we've been given an executable and need to load it 796 threadID = load_program(programArgs, programArgCount, traceLoading); 797 if (threadID < 0) { 798 fprintf(stderr, "%s: Failed to start `%s': %s\n", kCommandName, 799 programArgs[0], strerror(threadID)); 800 exit(1); 801 } 802 } 803 804 // get the team ID, if we have none yet 805 if (teamID < 0) { 806 thread_info threadInfo; 807 status_t error = get_thread_info(threadID, &threadInfo); 808 if (error != B_OK) { 809 fprintf(stderr, "%s: Failed to get info for thread %" B_PRId32 810 ": %s\n", kCommandName, threadID, strerror(error)); 811 exit(1); 812 } 813 teamID = threadInfo.team; 814 } 815 816 // create a debugger port 817 port_id debuggerPort = create_port(10, "debugger port"); 818 if (debuggerPort < 0) { 819 fprintf(stderr, "%s: Failed to create debugger port: %s\n", 820 kCommandName, strerror(debuggerPort)); 821 exit(1); 822 } 823 824 // install ourselves as the team debugger 825 typedef map<team_id, Team*> TeamMap; 826 TeamMap debuggedTeams; 827 port_id nubPort; 828 829 { 830 Team* team = new Team(teamID); 831 status_t error = team->InstallDebugger(debuggerPort, traceTeam, 832 traceChildTeams, traceSignal); 833 if (error != B_OK) 834 exit(1); 835 836 debuggedTeams[team->ID()] = team; 837 838 nubPort = team->NubPort(); 839 } 840 841 // set thread debugging flags 842 if (threadID >= 0) { 843 int32 threadDebugFlags = 0; 844 if (!traceTeam) { 845 threadDebugFlags = B_THREAD_DEBUG_PRE_SYSCALL | B_THREAD_DEBUG_POST_SYSCALL 846 | (traceChildThreads 847 ? B_THREAD_DEBUG_SYSCALL_TRACE_CHILD_THREADS : 0); 848 } 849 if (set_thread_debugging_flags(nubPort, threadID, threadDebugFlags) 850 != B_OK) { 851 exit(1); 852 } 853 854 // resume the target thread to be sure, it's running 855 resume_thread(threadID); 856 } 857 858 thread_id currentThreadID = -1; 859 860 // debug loop 861 while (true) { 862 bool quitLoop = false; 863 int32 code; 864 debug_debugger_message_data message; 865 ssize_t messageSize = read_port(debuggerPort, &code, &message, 866 sizeof(message)); 867 868 if (messageSize < 0) { 869 if (messageSize == B_INTERRUPTED) 870 continue; 871 872 fprintf(stderr, "%s: Reading from debugger port failed: %s\n", 873 kCommandName, strerror(messageSize)); 874 exit(1); 875 } 876 877 switch (code) { 878 case B_DEBUGGER_MESSAGE_PRE_SYSCALL: 879 { 880 TeamMap::iterator it = debuggedTeams.find(message.origin.team); 881 if (it == debuggedTeams.end()) 882 break; 883 884 Team* team = it->second; 885 MemoryReader& memoryReader = team->GetMemoryReader(); 886 887 uint32 syscallNumber = message.pre_syscall.syscall; 888 if (syscallNumber >= sSyscallVector.size()) { 889 fprintf(stderr, "%s: invalid syscall %" B_PRIu32 " attempted\n", 890 kCommandName, syscallNumber); 891 break; 892 } 893 Syscall* syscall = sSyscallVector[syscallNumber]; 894 895 if (trace) { 896 if (traceFilter && !syscall->TracingEnabled()) 897 break; 898 print_syscall(outputFile, syscall, message.pre_syscall, 899 memoryReader, printArguments, contentsFlags, 900 colorize, decimalFormat, currentThreadID); 901 } 902 break; 903 } 904 905 case B_DEBUGGER_MESSAGE_POST_SYSCALL: 906 { 907 TeamMap::iterator it = debuggedTeams.find(message.origin.team); 908 if (it == debuggedTeams.end()) 909 break; 910 911 Team* team = it->second; 912 MemoryReader& memoryReader = team->GetMemoryReader(); 913 914 uint32 syscallNumber = message.post_syscall.syscall; 915 if (syscallNumber >= sSyscallVector.size()) { 916 fprintf(stderr, "%s: invalid syscall %" B_PRIu32 " attempted\n", 917 kCommandName, syscallNumber); 918 break; 919 } 920 Syscall* syscall = sSyscallVector[syscallNumber]; 921 922 if (stats) 923 record_syscall_stats(*syscall, message.post_syscall); 924 925 if (trace) { 926 if (traceFilter && !syscall->TracingEnabled()) 927 break; 928 print_syscall(outputFile, syscall, message.post_syscall, 929 memoryReader, printArguments, contentsFlags, 930 printReturnValues, colorize, decimalFormat, 931 currentThreadID); 932 } 933 break; 934 } 935 936 case B_DEBUGGER_MESSAGE_SIGNAL_RECEIVED: 937 { 938 if (traceSignal && trace) 939 print_signal(outputFile, message.signal_received, colorize); 940 break; 941 } 942 943 case B_DEBUGGER_MESSAGE_THREAD_DEBUGGED: 944 case B_DEBUGGER_MESSAGE_DEBUGGER_CALL: 945 case B_DEBUGGER_MESSAGE_BREAKPOINT_HIT: 946 case B_DEBUGGER_MESSAGE_WATCHPOINT_HIT: 947 case B_DEBUGGER_MESSAGE_SINGLE_STEP: 948 case B_DEBUGGER_MESSAGE_EXCEPTION_OCCURRED: 949 case B_DEBUGGER_MESSAGE_THREAD_CREATED: 950 case B_DEBUGGER_MESSAGE_THREAD_DELETED: 951 case B_DEBUGGER_MESSAGE_IMAGE_CREATED: 952 case B_DEBUGGER_MESSAGE_IMAGE_DELETED: 953 break; 954 955 case B_DEBUGGER_MESSAGE_TEAM_CREATED: 956 { 957 if (!traceChildTeams) 958 break; 959 960 Team* team = new(std::nothrow) Team( 961 message.team_created.new_team); 962 if (team == NULL) { 963 fprintf(stderr, "%s: Out of memory!\n", kCommandName); 964 break; 965 } 966 967 status_t error = team->InstallDebugger(debuggerPort, true, true, 968 traceSignal); 969 if (error != B_OK) { 970 delete team; 971 break; 972 } 973 974 debuggedTeams[team->ID()] = team; 975 break; 976 } 977 978 case B_DEBUGGER_MESSAGE_TEAM_DELETED: 979 { 980 // a debugged team is gone 981 TeamMap::iterator it = debuggedTeams.find(message.origin.team); 982 if (it == debuggedTeams.end()) 983 break; 984 985 Team* team = it->second; 986 debuggedTeams.erase(it); 987 delete team; 988 989 // if all debugged teams are gone, we're done 990 quitLoop = debuggedTeams.empty(); 991 break; 992 } 993 } 994 995 if (quitLoop) 996 break; 997 998 // tell the thread to continue (only when there is a thread and the 999 // message was synchronous) 1000 if (message.origin.thread >= 0 && message.origin.nub_port >= 0) { 1001 if (continue_thread(message.origin.nub_port, 1002 message.origin.thread) != B_OK) { 1003 // the team can already be gone 1004 } 1005 } 1006 } 1007 1008 if (stats) { 1009 // Dump recorded statistics 1010 print_stats(outputFile); 1011 } 1012 1013 if (outputFile != NULL && outputFile != stdout) 1014 fclose(outputFile); 1015 1016 return 0; 1017 } 1018