1 #include "builtin.h" 2 3 #include "perf.h" 4 #include "util/cache.h" 5 #include "util/debug.h" 6 #include "util/exec_cmd.h" 7 #include "util/header.h" 8 #include "util/parse-options.h" 9 #include "util/session.h" 10 #include "util/tool.h" 11 #include "util/symbol.h" 12 #include "util/thread.h" 13 #include "util/trace-event.h" 14 #include "util/util.h" 15 #include "util/evlist.h" 16 #include "util/evsel.h" 17 #include "util/sort.h" 18 #include <linux/bitmap.h> 19 20 static char const *script_name; 21 static char const *generate_script_lang; 22 static bool debug_mode; 23 static u64 last_timestamp; 24 static u64 nr_unordered; 25 extern const struct option record_options[]; 26 static bool no_callchain; 27 static bool latency_format; 28 static bool system_wide; 29 static const char *cpu_list; 30 static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); 31 32 enum perf_output_field { 33 PERF_OUTPUT_COMM = 1U << 0, 34 PERF_OUTPUT_TID = 1U << 1, 35 PERF_OUTPUT_PID = 1U << 2, 36 PERF_OUTPUT_TIME = 1U << 3, 37 PERF_OUTPUT_CPU = 1U << 4, 38 PERF_OUTPUT_EVNAME = 1U << 5, 39 PERF_OUTPUT_TRACE = 1U << 6, 40 PERF_OUTPUT_IP = 1U << 7, 41 PERF_OUTPUT_SYM = 1U << 8, 42 PERF_OUTPUT_DSO = 1U << 9, 43 PERF_OUTPUT_ADDR = 1U << 10, 44 PERF_OUTPUT_SYMOFFSET = 1U << 11, 45 }; 46 47 struct output_option { 48 const char *str; 49 enum perf_output_field field; 50 } all_output_options[] = { 51 {.str = "comm", .field = PERF_OUTPUT_COMM}, 52 {.str = "tid", .field = PERF_OUTPUT_TID}, 53 {.str = "pid", .field = PERF_OUTPUT_PID}, 54 {.str = "time", .field = PERF_OUTPUT_TIME}, 55 {.str = "cpu", .field = PERF_OUTPUT_CPU}, 56 {.str = "event", .field = PERF_OUTPUT_EVNAME}, 57 {.str = "trace", .field = PERF_OUTPUT_TRACE}, 58 {.str = "ip", .field = PERF_OUTPUT_IP}, 59 {.str = "sym", .field = PERF_OUTPUT_SYM}, 60 {.str = "dso", .field = PERF_OUTPUT_DSO}, 61 {.str = "addr", .field = PERF_OUTPUT_ADDR}, 62 {.str = "symoff", .field = PERF_OUTPUT_SYMOFFSET}, 63 }; 64 65 /* default set to maintain compatibility with current format */ 66 static struct { 67 bool user_set; 68 bool wildcard_set; 69 u64 fields; 70 u64 invalid_fields; 71 } output[PERF_TYPE_MAX] = { 72 73 [PERF_TYPE_HARDWARE] = { 74 .user_set = false, 75 76 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | 77 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | 78 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP | 79 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO, 80 81 .invalid_fields = PERF_OUTPUT_TRACE, 82 }, 83 84 [PERF_TYPE_SOFTWARE] = { 85 .user_set = false, 86 87 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | 88 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | 89 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP | 90 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO, 91 92 .invalid_fields = PERF_OUTPUT_TRACE, 93 }, 94 95 [PERF_TYPE_TRACEPOINT] = { 96 .user_set = false, 97 98 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | 99 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | 100 PERF_OUTPUT_EVNAME | PERF_OUTPUT_TRACE, 101 }, 102 103 [PERF_TYPE_RAW] = { 104 .user_set = false, 105 106 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | 107 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | 108 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP | 109 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO, 110 111 .invalid_fields = PERF_OUTPUT_TRACE, 112 }, 113 }; 114 115 static bool output_set_by_user(void) 116 { 117 int j; 118 for (j = 0; j < PERF_TYPE_MAX; ++j) { 119 if (output[j].user_set) 120 return true; 121 } 122 return false; 123 } 124 125 static const char *output_field2str(enum perf_output_field field) 126 { 127 int i, imax = ARRAY_SIZE(all_output_options); 128 const char *str = ""; 129 130 for (i = 0; i < imax; ++i) { 131 if (all_output_options[i].field == field) { 132 str = all_output_options[i].str; 133 break; 134 } 135 } 136 return str; 137 } 138 139 #define PRINT_FIELD(x) (output[attr->type].fields & PERF_OUTPUT_##x) 140 141 static int perf_evsel__check_stype(struct perf_evsel *evsel, 142 u64 sample_type, const char *sample_msg, 143 enum perf_output_field field) 144 { 145 struct perf_event_attr *attr = &evsel->attr; 146 int type = attr->type; 147 const char *evname; 148 149 if (attr->sample_type & sample_type) 150 return 0; 151 152 if (output[type].user_set) { 153 evname = perf_evsel__name(evsel); 154 pr_err("Samples for '%s' event do not have %s attribute set. " 155 "Cannot print '%s' field.\n", 156 evname, sample_msg, output_field2str(field)); 157 return -1; 158 } 159 160 /* user did not ask for it explicitly so remove from the default list */ 161 output[type].fields &= ~field; 162 evname = perf_evsel__name(evsel); 163 pr_debug("Samples for '%s' event do not have %s attribute set. " 164 "Skipping '%s' field.\n", 165 evname, sample_msg, output_field2str(field)); 166 167 return 0; 168 } 169 170 static int perf_evsel__check_attr(struct perf_evsel *evsel, 171 struct perf_session *session) 172 { 173 struct perf_event_attr *attr = &evsel->attr; 174 175 if (PRINT_FIELD(TRACE) && 176 !perf_session__has_traces(session, "record -R")) 177 return -EINVAL; 178 179 if (PRINT_FIELD(IP)) { 180 if (perf_evsel__check_stype(evsel, PERF_SAMPLE_IP, "IP", 181 PERF_OUTPUT_IP)) 182 return -EINVAL; 183 184 if (!no_callchain && 185 !(attr->sample_type & PERF_SAMPLE_CALLCHAIN)) 186 symbol_conf.use_callchain = false; 187 } 188 189 if (PRINT_FIELD(ADDR) && 190 perf_evsel__check_stype(evsel, PERF_SAMPLE_ADDR, "ADDR", 191 PERF_OUTPUT_ADDR)) 192 return -EINVAL; 193 194 if (PRINT_FIELD(SYM) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) { 195 pr_err("Display of symbols requested but neither sample IP nor " 196 "sample address\nis selected. Hence, no addresses to convert " 197 "to symbols.\n"); 198 return -EINVAL; 199 } 200 if (PRINT_FIELD(SYMOFFSET) && !PRINT_FIELD(SYM)) { 201 pr_err("Display of offsets requested but symbol is not" 202 "selected.\n"); 203 return -EINVAL; 204 } 205 if (PRINT_FIELD(DSO) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) { 206 pr_err("Display of DSO requested but neither sample IP nor " 207 "sample address\nis selected. Hence, no addresses to convert " 208 "to DSO.\n"); 209 return -EINVAL; 210 } 211 212 if ((PRINT_FIELD(PID) || PRINT_FIELD(TID)) && 213 perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID", 214 PERF_OUTPUT_TID|PERF_OUTPUT_PID)) 215 return -EINVAL; 216 217 if (PRINT_FIELD(TIME) && 218 perf_evsel__check_stype(evsel, PERF_SAMPLE_TIME, "TIME", 219 PERF_OUTPUT_TIME)) 220 return -EINVAL; 221 222 if (PRINT_FIELD(CPU) && 223 perf_evsel__check_stype(evsel, PERF_SAMPLE_CPU, "CPU", 224 PERF_OUTPUT_CPU)) 225 return -EINVAL; 226 227 return 0; 228 } 229 230 /* 231 * verify all user requested events exist and the samples 232 * have the expected data 233 */ 234 static int perf_session__check_output_opt(struct perf_session *session) 235 { 236 int j; 237 struct perf_evsel *evsel; 238 239 for (j = 0; j < PERF_TYPE_MAX; ++j) { 240 evsel = perf_session__find_first_evtype(session, j); 241 242 /* 243 * even if fields is set to 0 (ie., show nothing) event must 244 * exist if user explicitly includes it on the command line 245 */ 246 if (!evsel && output[j].user_set && !output[j].wildcard_set) { 247 pr_err("%s events do not exist. " 248 "Remove corresponding -f option to proceed.\n", 249 event_type(j)); 250 return -1; 251 } 252 253 if (evsel && output[j].fields && 254 perf_evsel__check_attr(evsel, session)) 255 return -1; 256 } 257 258 return 0; 259 } 260 261 static void print_sample_start(struct perf_sample *sample, 262 struct thread *thread, 263 struct perf_evsel *evsel) 264 { 265 struct perf_event_attr *attr = &evsel->attr; 266 const char *evname = NULL; 267 unsigned long secs; 268 unsigned long usecs; 269 unsigned long long nsecs; 270 271 if (PRINT_FIELD(COMM)) { 272 if (latency_format) 273 printf("%8.8s ", thread->comm); 274 else if (PRINT_FIELD(IP) && symbol_conf.use_callchain) 275 printf("%s ", thread->comm); 276 else 277 printf("%16s ", thread->comm); 278 } 279 280 if (PRINT_FIELD(PID) && PRINT_FIELD(TID)) 281 printf("%5d/%-5d ", sample->pid, sample->tid); 282 else if (PRINT_FIELD(PID)) 283 printf("%5d ", sample->pid); 284 else if (PRINT_FIELD(TID)) 285 printf("%5d ", sample->tid); 286 287 if (PRINT_FIELD(CPU)) { 288 if (latency_format) 289 printf("%3d ", sample->cpu); 290 else 291 printf("[%03d] ", sample->cpu); 292 } 293 294 if (PRINT_FIELD(TIME)) { 295 nsecs = sample->time; 296 secs = nsecs / NSECS_PER_SEC; 297 nsecs -= secs * NSECS_PER_SEC; 298 usecs = nsecs / NSECS_PER_USEC; 299 printf("%5lu.%06lu: ", secs, usecs); 300 } 301 302 if (PRINT_FIELD(EVNAME)) { 303 evname = perf_evsel__name(evsel); 304 printf("%s: ", evname ? evname : "[unknown]"); 305 } 306 } 307 308 static bool is_bts_event(struct perf_event_attr *attr) 309 { 310 return ((attr->type == PERF_TYPE_HARDWARE) && 311 (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) && 312 (attr->sample_period == 1)); 313 } 314 315 static bool sample_addr_correlates_sym(struct perf_event_attr *attr) 316 { 317 if ((attr->type == PERF_TYPE_SOFTWARE) && 318 ((attr->config == PERF_COUNT_SW_PAGE_FAULTS) || 319 (attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN) || 320 (attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ))) 321 return true; 322 323 if (is_bts_event(attr)) 324 return true; 325 326 return false; 327 } 328 329 static void print_sample_addr(union perf_event *event, 330 struct perf_sample *sample, 331 struct machine *machine, 332 struct thread *thread, 333 struct perf_event_attr *attr) 334 { 335 struct addr_location al; 336 u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; 337 338 printf("%16" PRIx64, sample->addr); 339 340 if (!sample_addr_correlates_sym(attr)) 341 return; 342 343 thread__find_addr_map(thread, machine, cpumode, MAP__FUNCTION, 344 sample->addr, &al); 345 if (!al.map) 346 thread__find_addr_map(thread, machine, cpumode, MAP__VARIABLE, 347 sample->addr, &al); 348 349 al.cpu = sample->cpu; 350 al.sym = NULL; 351 352 if (al.map) 353 al.sym = map__find_symbol(al.map, al.addr, NULL); 354 355 if (PRINT_FIELD(SYM)) { 356 printf(" "); 357 if (PRINT_FIELD(SYMOFFSET)) 358 symbol__fprintf_symname_offs(al.sym, &al, stdout); 359 else 360 symbol__fprintf_symname(al.sym, stdout); 361 } 362 363 if (PRINT_FIELD(DSO)) { 364 printf(" ("); 365 map__fprintf_dsoname(al.map, stdout); 366 printf(")"); 367 } 368 } 369 370 static void print_sample_bts(union perf_event *event, 371 struct perf_sample *sample, 372 struct perf_evsel *evsel, 373 struct machine *machine, 374 struct thread *thread) 375 { 376 struct perf_event_attr *attr = &evsel->attr; 377 378 /* print branch_from information */ 379 if (PRINT_FIELD(IP)) { 380 if (!symbol_conf.use_callchain) 381 printf(" "); 382 else 383 printf("\n"); 384 perf_evsel__print_ip(evsel, event, sample, machine, 385 PRINT_FIELD(SYM), PRINT_FIELD(DSO), 386 PRINT_FIELD(SYMOFFSET)); 387 } 388 389 printf(" => "); 390 391 /* print branch_to information */ 392 if (PRINT_FIELD(ADDR)) 393 print_sample_addr(event, sample, machine, thread, attr); 394 395 printf("\n"); 396 } 397 398 static void process_event(union perf_event *event, struct perf_sample *sample, 399 struct perf_evsel *evsel, struct machine *machine, 400 struct addr_location *al) 401 { 402 struct perf_event_attr *attr = &evsel->attr; 403 struct thread *thread = al->thread; 404 405 if (output[attr->type].fields == 0) 406 return; 407 408 print_sample_start(sample, thread, evsel); 409 410 if (is_bts_event(attr)) { 411 print_sample_bts(event, sample, evsel, machine, thread); 412 return; 413 } 414 415 if (PRINT_FIELD(TRACE)) 416 event_format__print(evsel->tp_format, sample->cpu, 417 sample->raw_data, sample->raw_size); 418 if (PRINT_FIELD(ADDR)) 419 print_sample_addr(event, sample, machine, thread, attr); 420 421 if (PRINT_FIELD(IP)) { 422 if (!symbol_conf.use_callchain) 423 printf(" "); 424 else 425 printf("\n"); 426 perf_evsel__print_ip(evsel, event, sample, machine, 427 PRINT_FIELD(SYM), PRINT_FIELD(DSO), 428 PRINT_FIELD(SYMOFFSET)); 429 } 430 431 printf("\n"); 432 } 433 434 static int default_start_script(const char *script __maybe_unused, 435 int argc __maybe_unused, 436 const char **argv __maybe_unused) 437 { 438 return 0; 439 } 440 441 static int default_stop_script(void) 442 { 443 return 0; 444 } 445 446 static int default_generate_script(struct pevent *pevent __maybe_unused, 447 const char *outfile __maybe_unused) 448 { 449 return 0; 450 } 451 452 static struct scripting_ops default_scripting_ops = { 453 .start_script = default_start_script, 454 .stop_script = default_stop_script, 455 .process_event = process_event, 456 .generate_script = default_generate_script, 457 }; 458 459 static struct scripting_ops *scripting_ops; 460 461 static void setup_scripting(void) 462 { 463 setup_perl_scripting(); 464 setup_python_scripting(); 465 466 scripting_ops = &default_scripting_ops; 467 } 468 469 static int cleanup_scripting(void) 470 { 471 pr_debug("\nperf script stopped\n"); 472 473 return scripting_ops->stop_script(); 474 } 475 476 static int process_sample_event(struct perf_tool *tool __maybe_unused, 477 union perf_event *event, 478 struct perf_sample *sample, 479 struct perf_evsel *evsel, 480 struct machine *machine) 481 { 482 struct addr_location al; 483 struct thread *thread = machine__findnew_thread(machine, event->ip.tid); 484 485 if (thread == NULL) { 486 pr_debug("problem processing %d event, skipping it.\n", 487 event->header.type); 488 return -1; 489 } 490 491 if (debug_mode) { 492 if (sample->time < last_timestamp) { 493 pr_err("Samples misordered, previous: %" PRIu64 494 " this: %" PRIu64 "\n", last_timestamp, 495 sample->time); 496 nr_unordered++; 497 } 498 last_timestamp = sample->time; 499 return 0; 500 } 501 502 if (perf_event__preprocess_sample(event, machine, &al, sample, 0) < 0) { 503 pr_err("problem processing %d event, skipping it.\n", 504 event->header.type); 505 return -1; 506 } 507 508 if (al.filtered) 509 return 0; 510 511 if (cpu_list && !test_bit(sample->cpu, cpu_bitmap)) 512 return 0; 513 514 scripting_ops->process_event(event, sample, evsel, machine, &al); 515 516 evsel->hists.stats.total_period += sample->period; 517 return 0; 518 } 519 520 static struct perf_tool perf_script = { 521 .sample = process_sample_event, 522 .mmap = perf_event__process_mmap, 523 .comm = perf_event__process_comm, 524 .exit = perf_event__process_exit, 525 .fork = perf_event__process_fork, 526 .attr = perf_event__process_attr, 527 .event_type = perf_event__process_event_type, 528 .tracing_data = perf_event__process_tracing_data, 529 .build_id = perf_event__process_build_id, 530 .ordered_samples = true, 531 .ordering_requires_timestamps = true, 532 }; 533 534 extern volatile int session_done; 535 536 static void sig_handler(int sig __maybe_unused) 537 { 538 session_done = 1; 539 } 540 541 static int __cmd_script(struct perf_session *session) 542 { 543 int ret; 544 545 signal(SIGINT, sig_handler); 546 547 ret = perf_session__process_events(session, &perf_script); 548 549 if (debug_mode) 550 pr_err("Misordered timestamps: %" PRIu64 "\n", nr_unordered); 551 552 return ret; 553 } 554 555 struct script_spec { 556 struct list_head node; 557 struct scripting_ops *ops; 558 char spec[0]; 559 }; 560 561 static LIST_HEAD(script_specs); 562 563 static struct script_spec *script_spec__new(const char *spec, 564 struct scripting_ops *ops) 565 { 566 struct script_spec *s = malloc(sizeof(*s) + strlen(spec) + 1); 567 568 if (s != NULL) { 569 strcpy(s->spec, spec); 570 s->ops = ops; 571 } 572 573 return s; 574 } 575 576 static void script_spec__add(struct script_spec *s) 577 { 578 list_add_tail(&s->node, &script_specs); 579 } 580 581 static struct script_spec *script_spec__find(const char *spec) 582 { 583 struct script_spec *s; 584 585 list_for_each_entry(s, &script_specs, node) 586 if (strcasecmp(s->spec, spec) == 0) 587 return s; 588 return NULL; 589 } 590 591 static struct script_spec *script_spec__findnew(const char *spec, 592 struct scripting_ops *ops) 593 { 594 struct script_spec *s = script_spec__find(spec); 595 596 if (s) 597 return s; 598 599 s = script_spec__new(spec, ops); 600 if (!s) 601 return NULL; 602 603 script_spec__add(s); 604 605 return s; 606 } 607 608 int script_spec_register(const char *spec, struct scripting_ops *ops) 609 { 610 struct script_spec *s; 611 612 s = script_spec__find(spec); 613 if (s) 614 return -1; 615 616 s = script_spec__findnew(spec, ops); 617 if (!s) 618 return -1; 619 620 return 0; 621 } 622 623 static struct scripting_ops *script_spec__lookup(const char *spec) 624 { 625 struct script_spec *s = script_spec__find(spec); 626 if (!s) 627 return NULL; 628 629 return s->ops; 630 } 631 632 static void list_available_languages(void) 633 { 634 struct script_spec *s; 635 636 fprintf(stderr, "\n"); 637 fprintf(stderr, "Scripting language extensions (used in " 638 "perf script -s [spec:]script.[spec]):\n\n"); 639 640 list_for_each_entry(s, &script_specs, node) 641 fprintf(stderr, " %-42s [%s]\n", s->spec, s->ops->name); 642 643 fprintf(stderr, "\n"); 644 } 645 646 static int parse_scriptname(const struct option *opt __maybe_unused, 647 const char *str, int unset __maybe_unused) 648 { 649 char spec[PATH_MAX]; 650 const char *script, *ext; 651 int len; 652 653 if (strcmp(str, "lang") == 0) { 654 list_available_languages(); 655 exit(0); 656 } 657 658 script = strchr(str, ':'); 659 if (script) { 660 len = script - str; 661 if (len >= PATH_MAX) { 662 fprintf(stderr, "invalid language specifier"); 663 return -1; 664 } 665 strncpy(spec, str, len); 666 spec[len] = '\0'; 667 scripting_ops = script_spec__lookup(spec); 668 if (!scripting_ops) { 669 fprintf(stderr, "invalid language specifier"); 670 return -1; 671 } 672 script++; 673 } else { 674 script = str; 675 ext = strrchr(script, '.'); 676 if (!ext) { 677 fprintf(stderr, "invalid script extension"); 678 return -1; 679 } 680 scripting_ops = script_spec__lookup(++ext); 681 if (!scripting_ops) { 682 fprintf(stderr, "invalid script extension"); 683 return -1; 684 } 685 } 686 687 script_name = strdup(script); 688 689 return 0; 690 } 691 692 static int parse_output_fields(const struct option *opt __maybe_unused, 693 const char *arg, int unset __maybe_unused) 694 { 695 char *tok; 696 int i, imax = ARRAY_SIZE(all_output_options); 697 int j; 698 int rc = 0; 699 char *str = strdup(arg); 700 int type = -1; 701 702 if (!str) 703 return -ENOMEM; 704 705 /* first word can state for which event type the user is specifying 706 * the fields. If no type exists, the specified fields apply to all 707 * event types found in the file minus the invalid fields for a type. 708 */ 709 tok = strchr(str, ':'); 710 if (tok) { 711 *tok = '\0'; 712 tok++; 713 if (!strcmp(str, "hw")) 714 type = PERF_TYPE_HARDWARE; 715 else if (!strcmp(str, "sw")) 716 type = PERF_TYPE_SOFTWARE; 717 else if (!strcmp(str, "trace")) 718 type = PERF_TYPE_TRACEPOINT; 719 else if (!strcmp(str, "raw")) 720 type = PERF_TYPE_RAW; 721 else { 722 fprintf(stderr, "Invalid event type in field string.\n"); 723 rc = -EINVAL; 724 goto out; 725 } 726 727 if (output[type].user_set) 728 pr_warning("Overriding previous field request for %s events.\n", 729 event_type(type)); 730 731 output[type].fields = 0; 732 output[type].user_set = true; 733 output[type].wildcard_set = false; 734 735 } else { 736 tok = str; 737 if (strlen(str) == 0) { 738 fprintf(stderr, 739 "Cannot set fields to 'none' for all event types.\n"); 740 rc = -EINVAL; 741 goto out; 742 } 743 744 if (output_set_by_user()) 745 pr_warning("Overriding previous field request for all events.\n"); 746 747 for (j = 0; j < PERF_TYPE_MAX; ++j) { 748 output[j].fields = 0; 749 output[j].user_set = true; 750 output[j].wildcard_set = true; 751 } 752 } 753 754 tok = strtok(tok, ","); 755 while (tok) { 756 for (i = 0; i < imax; ++i) { 757 if (strcmp(tok, all_output_options[i].str) == 0) 758 break; 759 } 760 if (i == imax) { 761 fprintf(stderr, "Invalid field requested.\n"); 762 rc = -EINVAL; 763 goto out; 764 } 765 766 if (type == -1) { 767 /* add user option to all events types for 768 * which it is valid 769 */ 770 for (j = 0; j < PERF_TYPE_MAX; ++j) { 771 if (output[j].invalid_fields & all_output_options[i].field) { 772 pr_warning("\'%s\' not valid for %s events. Ignoring.\n", 773 all_output_options[i].str, event_type(j)); 774 } else 775 output[j].fields |= all_output_options[i].field; 776 } 777 } else { 778 if (output[type].invalid_fields & all_output_options[i].field) { 779 fprintf(stderr, "\'%s\' not valid for %s events.\n", 780 all_output_options[i].str, event_type(type)); 781 782 rc = -EINVAL; 783 goto out; 784 } 785 output[type].fields |= all_output_options[i].field; 786 } 787 788 tok = strtok(NULL, ","); 789 } 790 791 if (type >= 0) { 792 if (output[type].fields == 0) { 793 pr_debug("No fields requested for %s type. " 794 "Events will not be displayed.\n", event_type(type)); 795 } 796 } 797 798 out: 799 free(str); 800 return rc; 801 } 802 803 /* Helper function for filesystems that return a dent->d_type DT_UNKNOWN */ 804 static int is_directory(const char *base_path, const struct dirent *dent) 805 { 806 char path[PATH_MAX]; 807 struct stat st; 808 809 sprintf(path, "%s/%s", base_path, dent->d_name); 810 if (stat(path, &st)) 811 return 0; 812 813 return S_ISDIR(st.st_mode); 814 } 815 816 #define for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next)\ 817 while (!readdir_r(scripts_dir, &lang_dirent, &lang_next) && \ 818 lang_next) \ 819 if ((lang_dirent.d_type == DT_DIR || \ 820 (lang_dirent.d_type == DT_UNKNOWN && \ 821 is_directory(scripts_path, &lang_dirent))) && \ 822 (strcmp(lang_dirent.d_name, ".")) && \ 823 (strcmp(lang_dirent.d_name, ".."))) 824 825 #define for_each_script(lang_path, lang_dir, script_dirent, script_next)\ 826 while (!readdir_r(lang_dir, &script_dirent, &script_next) && \ 827 script_next) \ 828 if (script_dirent.d_type != DT_DIR && \ 829 (script_dirent.d_type != DT_UNKNOWN || \ 830 !is_directory(lang_path, &script_dirent))) 831 832 833 #define RECORD_SUFFIX "-record" 834 #define REPORT_SUFFIX "-report" 835 836 struct script_desc { 837 struct list_head node; 838 char *name; 839 char *half_liner; 840 char *args; 841 }; 842 843 static LIST_HEAD(script_descs); 844 845 static struct script_desc *script_desc__new(const char *name) 846 { 847 struct script_desc *s = zalloc(sizeof(*s)); 848 849 if (s != NULL && name) 850 s->name = strdup(name); 851 852 return s; 853 } 854 855 static void script_desc__delete(struct script_desc *s) 856 { 857 free(s->name); 858 free(s->half_liner); 859 free(s->args); 860 free(s); 861 } 862 863 static void script_desc__add(struct script_desc *s) 864 { 865 list_add_tail(&s->node, &script_descs); 866 } 867 868 static struct script_desc *script_desc__find(const char *name) 869 { 870 struct script_desc *s; 871 872 list_for_each_entry(s, &script_descs, node) 873 if (strcasecmp(s->name, name) == 0) 874 return s; 875 return NULL; 876 } 877 878 static struct script_desc *script_desc__findnew(const char *name) 879 { 880 struct script_desc *s = script_desc__find(name); 881 882 if (s) 883 return s; 884 885 s = script_desc__new(name); 886 if (!s) 887 goto out_delete_desc; 888 889 script_desc__add(s); 890 891 return s; 892 893 out_delete_desc: 894 script_desc__delete(s); 895 896 return NULL; 897 } 898 899 static const char *ends_with(const char *str, const char *suffix) 900 { 901 size_t suffix_len = strlen(suffix); 902 const char *p = str; 903 904 if (strlen(str) > suffix_len) { 905 p = str + strlen(str) - suffix_len; 906 if (!strncmp(p, suffix, suffix_len)) 907 return p; 908 } 909 910 return NULL; 911 } 912 913 static int read_script_info(struct script_desc *desc, const char *filename) 914 { 915 char line[BUFSIZ], *p; 916 FILE *fp; 917 918 fp = fopen(filename, "r"); 919 if (!fp) 920 return -1; 921 922 while (fgets(line, sizeof(line), fp)) { 923 p = ltrim(line); 924 if (strlen(p) == 0) 925 continue; 926 if (*p != '#') 927 continue; 928 p++; 929 if (strlen(p) && *p == '!') 930 continue; 931 932 p = ltrim(p); 933 if (strlen(p) && p[strlen(p) - 1] == '\n') 934 p[strlen(p) - 1] = '\0'; 935 936 if (!strncmp(p, "description:", strlen("description:"))) { 937 p += strlen("description:"); 938 desc->half_liner = strdup(ltrim(p)); 939 continue; 940 } 941 942 if (!strncmp(p, "args:", strlen("args:"))) { 943 p += strlen("args:"); 944 desc->args = strdup(ltrim(p)); 945 continue; 946 } 947 } 948 949 fclose(fp); 950 951 return 0; 952 } 953 954 static char *get_script_root(struct dirent *script_dirent, const char *suffix) 955 { 956 char *script_root, *str; 957 958 script_root = strdup(script_dirent->d_name); 959 if (!script_root) 960 return NULL; 961 962 str = (char *)ends_with(script_root, suffix); 963 if (!str) { 964 free(script_root); 965 return NULL; 966 } 967 968 *str = '\0'; 969 return script_root; 970 } 971 972 static int list_available_scripts(const struct option *opt __maybe_unused, 973 const char *s __maybe_unused, 974 int unset __maybe_unused) 975 { 976 struct dirent *script_next, *lang_next, script_dirent, lang_dirent; 977 char scripts_path[MAXPATHLEN]; 978 DIR *scripts_dir, *lang_dir; 979 char script_path[MAXPATHLEN]; 980 char lang_path[MAXPATHLEN]; 981 struct script_desc *desc; 982 char first_half[BUFSIZ]; 983 char *script_root; 984 985 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path()); 986 987 scripts_dir = opendir(scripts_path); 988 if (!scripts_dir) 989 return -1; 990 991 for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) { 992 snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path, 993 lang_dirent.d_name); 994 lang_dir = opendir(lang_path); 995 if (!lang_dir) 996 continue; 997 998 for_each_script(lang_path, lang_dir, script_dirent, script_next) { 999 script_root = get_script_root(&script_dirent, REPORT_SUFFIX); 1000 if (script_root) { 1001 desc = script_desc__findnew(script_root); 1002 snprintf(script_path, MAXPATHLEN, "%s/%s", 1003 lang_path, script_dirent.d_name); 1004 read_script_info(desc, script_path); 1005 free(script_root); 1006 } 1007 } 1008 } 1009 1010 fprintf(stdout, "List of available trace scripts:\n"); 1011 list_for_each_entry(desc, &script_descs, node) { 1012 sprintf(first_half, "%s %s", desc->name, 1013 desc->args ? desc->args : ""); 1014 fprintf(stdout, " %-36s %s\n", first_half, 1015 desc->half_liner ? desc->half_liner : ""); 1016 } 1017 1018 exit(0); 1019 } 1020 1021 /* 1022 * Some scripts specify the required events in their "xxx-record" file, 1023 * this function will check if the events in perf.data match those 1024 * mentioned in the "xxx-record". 1025 * 1026 * Fixme: All existing "xxx-record" are all in good formats "-e event ", 1027 * which is covered well now. And new parsing code should be added to 1028 * cover the future complexing formats like event groups etc. 1029 */ 1030 static int check_ev_match(char *dir_name, char *scriptname, 1031 struct perf_session *session) 1032 { 1033 char filename[MAXPATHLEN], evname[128]; 1034 char line[BUFSIZ], *p; 1035 struct perf_evsel *pos; 1036 int match, len; 1037 FILE *fp; 1038 1039 sprintf(filename, "%s/bin/%s-record", dir_name, scriptname); 1040 1041 fp = fopen(filename, "r"); 1042 if (!fp) 1043 return -1; 1044 1045 while (fgets(line, sizeof(line), fp)) { 1046 p = ltrim(line); 1047 if (*p == '#') 1048 continue; 1049 1050 while (strlen(p)) { 1051 p = strstr(p, "-e"); 1052 if (!p) 1053 break; 1054 1055 p += 2; 1056 p = ltrim(p); 1057 len = strcspn(p, " \t"); 1058 if (!len) 1059 break; 1060 1061 snprintf(evname, len + 1, "%s", p); 1062 1063 match = 0; 1064 list_for_each_entry(pos, 1065 &session->evlist->entries, node) { 1066 if (!strcmp(perf_evsel__name(pos), evname)) { 1067 match = 1; 1068 break; 1069 } 1070 } 1071 1072 if (!match) { 1073 fclose(fp); 1074 return -1; 1075 } 1076 } 1077 } 1078 1079 fclose(fp); 1080 return 0; 1081 } 1082 1083 /* 1084 * Return -1 if none is found, otherwise the actual scripts number. 1085 * 1086 * Currently the only user of this function is the script browser, which 1087 * will list all statically runnable scripts, select one, execute it and 1088 * show the output in a perf browser. 1089 */ 1090 int find_scripts(char **scripts_array, char **scripts_path_array) 1091 { 1092 struct dirent *script_next, *lang_next, script_dirent, lang_dirent; 1093 char scripts_path[MAXPATHLEN], lang_path[MAXPATHLEN]; 1094 DIR *scripts_dir, *lang_dir; 1095 struct perf_session *session; 1096 char *temp; 1097 int i = 0; 1098 1099 session = perf_session__new(input_name, O_RDONLY, 0, false, NULL); 1100 if (!session) 1101 return -1; 1102 1103 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path()); 1104 1105 scripts_dir = opendir(scripts_path); 1106 if (!scripts_dir) { 1107 perf_session__delete(session); 1108 return -1; 1109 } 1110 1111 for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) { 1112 snprintf(lang_path, MAXPATHLEN, "%s/%s", scripts_path, 1113 lang_dirent.d_name); 1114 #ifdef NO_LIBPERL 1115 if (strstr(lang_path, "perl")) 1116 continue; 1117 #endif 1118 #ifdef NO_LIBPYTHON 1119 if (strstr(lang_path, "python")) 1120 continue; 1121 #endif 1122 1123 lang_dir = opendir(lang_path); 1124 if (!lang_dir) 1125 continue; 1126 1127 for_each_script(lang_path, lang_dir, script_dirent, script_next) { 1128 /* Skip those real time scripts: xxxtop.p[yl] */ 1129 if (strstr(script_dirent.d_name, "top.")) 1130 continue; 1131 sprintf(scripts_path_array[i], "%s/%s", lang_path, 1132 script_dirent.d_name); 1133 temp = strchr(script_dirent.d_name, '.'); 1134 snprintf(scripts_array[i], 1135 (temp - script_dirent.d_name) + 1, 1136 "%s", script_dirent.d_name); 1137 1138 if (check_ev_match(lang_path, 1139 scripts_array[i], session)) 1140 continue; 1141 1142 i++; 1143 } 1144 closedir(lang_dir); 1145 } 1146 1147 closedir(scripts_dir); 1148 perf_session__delete(session); 1149 return i; 1150 } 1151 1152 static char *get_script_path(const char *script_root, const char *suffix) 1153 { 1154 struct dirent *script_next, *lang_next, script_dirent, lang_dirent; 1155 char scripts_path[MAXPATHLEN]; 1156 char script_path[MAXPATHLEN]; 1157 DIR *scripts_dir, *lang_dir; 1158 char lang_path[MAXPATHLEN]; 1159 char *__script_root; 1160 1161 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", perf_exec_path()); 1162 1163 scripts_dir = opendir(scripts_path); 1164 if (!scripts_dir) 1165 return NULL; 1166 1167 for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) { 1168 snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path, 1169 lang_dirent.d_name); 1170 lang_dir = opendir(lang_path); 1171 if (!lang_dir) 1172 continue; 1173 1174 for_each_script(lang_path, lang_dir, script_dirent, script_next) { 1175 __script_root = get_script_root(&script_dirent, suffix); 1176 if (__script_root && !strcmp(script_root, __script_root)) { 1177 free(__script_root); 1178 closedir(lang_dir); 1179 closedir(scripts_dir); 1180 snprintf(script_path, MAXPATHLEN, "%s/%s", 1181 lang_path, script_dirent.d_name); 1182 return strdup(script_path); 1183 } 1184 free(__script_root); 1185 } 1186 closedir(lang_dir); 1187 } 1188 closedir(scripts_dir); 1189 1190 return NULL; 1191 } 1192 1193 static bool is_top_script(const char *script_path) 1194 { 1195 return ends_with(script_path, "top") == NULL ? false : true; 1196 } 1197 1198 static int has_required_arg(char *script_path) 1199 { 1200 struct script_desc *desc; 1201 int n_args = 0; 1202 char *p; 1203 1204 desc = script_desc__new(NULL); 1205 1206 if (read_script_info(desc, script_path)) 1207 goto out; 1208 1209 if (!desc->args) 1210 goto out; 1211 1212 for (p = desc->args; *p; p++) 1213 if (*p == '<') 1214 n_args++; 1215 out: 1216 script_desc__delete(desc); 1217 1218 return n_args; 1219 } 1220 1221 static int have_cmd(int argc, const char **argv) 1222 { 1223 char **__argv = malloc(sizeof(const char *) * argc); 1224 1225 if (!__argv) { 1226 pr_err("malloc failed\n"); 1227 return -1; 1228 } 1229 1230 memcpy(__argv, argv, sizeof(const char *) * argc); 1231 argc = parse_options(argc, (const char **)__argv, record_options, 1232 NULL, PARSE_OPT_STOP_AT_NON_OPTION); 1233 free(__argv); 1234 1235 system_wide = (argc == 0); 1236 1237 return 0; 1238 } 1239 1240 int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) 1241 { 1242 bool show_full_info = false; 1243 char *rec_script_path = NULL; 1244 char *rep_script_path = NULL; 1245 struct perf_session *session; 1246 char *script_path = NULL; 1247 const char **__argv; 1248 int i, j, err; 1249 const struct option options[] = { 1250 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, 1251 "dump raw trace in ASCII"), 1252 OPT_INCR('v', "verbose", &verbose, 1253 "be more verbose (show symbol address, etc)"), 1254 OPT_BOOLEAN('L', "Latency", &latency_format, 1255 "show latency attributes (irqs/preemption disabled, etc)"), 1256 OPT_CALLBACK_NOOPT('l', "list", NULL, NULL, "list available scripts", 1257 list_available_scripts), 1258 OPT_CALLBACK('s', "script", NULL, "name", 1259 "script file name (lang:script name, script name, or *)", 1260 parse_scriptname), 1261 OPT_STRING('g', "gen-script", &generate_script_lang, "lang", 1262 "generate perf-script.xx script in specified language"), 1263 OPT_STRING('i', "input", &input_name, "file", "input file name"), 1264 OPT_BOOLEAN('d', "debug-mode", &debug_mode, 1265 "do various checks like samples ordering and lost events"), 1266 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, 1267 "file", "vmlinux pathname"), 1268 OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, 1269 "file", "kallsyms pathname"), 1270 OPT_BOOLEAN('G', "hide-call-graph", &no_callchain, 1271 "When printing symbols do not display call chain"), 1272 OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", 1273 "Look for files with symbols relative to this directory"), 1274 OPT_CALLBACK('f', "fields", NULL, "str", 1275 "comma separated output fields prepend with 'type:'. " 1276 "Valid types: hw,sw,trace,raw. " 1277 "Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso," 1278 "addr,symoff", parse_output_fields), 1279 OPT_BOOLEAN('a', "all-cpus", &system_wide, 1280 "system-wide collection from all CPUs"), 1281 OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", 1282 "only consider these symbols"), 1283 OPT_STRING('C', "cpu", &cpu_list, "cpu", "list of cpus to profile"), 1284 OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", 1285 "only display events for these comms"), 1286 OPT_BOOLEAN('I', "show-info", &show_full_info, 1287 "display extended information from perf.data file"), 1288 OPT_BOOLEAN('\0', "show-kernel-path", &symbol_conf.show_kernel_path, 1289 "Show the path of [kernel.kallsyms]"), 1290 OPT_END() 1291 }; 1292 const char * const script_usage[] = { 1293 "perf script [<options>]", 1294 "perf script [<options>] record <script> [<record-options>] <command>", 1295 "perf script [<options>] report <script> [script-args]", 1296 "perf script [<options>] <script> [<record-options>] <command>", 1297 "perf script [<options>] <top-script> [script-args]", 1298 NULL 1299 }; 1300 1301 setup_scripting(); 1302 1303 argc = parse_options(argc, argv, options, script_usage, 1304 PARSE_OPT_STOP_AT_NON_OPTION); 1305 1306 if (argc > 1 && !strncmp(argv[0], "rec", strlen("rec"))) { 1307 rec_script_path = get_script_path(argv[1], RECORD_SUFFIX); 1308 if (!rec_script_path) 1309 return cmd_record(argc, argv, NULL); 1310 } 1311 1312 if (argc > 1 && !strncmp(argv[0], "rep", strlen("rep"))) { 1313 rep_script_path = get_script_path(argv[1], REPORT_SUFFIX); 1314 if (!rep_script_path) { 1315 fprintf(stderr, 1316 "Please specify a valid report script" 1317 "(see 'perf script -l' for listing)\n"); 1318 return -1; 1319 } 1320 } 1321 1322 /* make sure PERF_EXEC_PATH is set for scripts */ 1323 perf_set_argv_exec_path(perf_exec_path()); 1324 1325 if (argc && !script_name && !rec_script_path && !rep_script_path) { 1326 int live_pipe[2]; 1327 int rep_args; 1328 pid_t pid; 1329 1330 rec_script_path = get_script_path(argv[0], RECORD_SUFFIX); 1331 rep_script_path = get_script_path(argv[0], REPORT_SUFFIX); 1332 1333 if (!rec_script_path && !rep_script_path) { 1334 fprintf(stderr, " Couldn't find script %s\n\n See perf" 1335 " script -l for available scripts.\n", argv[0]); 1336 usage_with_options(script_usage, options); 1337 } 1338 1339 if (is_top_script(argv[0])) { 1340 rep_args = argc - 1; 1341 } else { 1342 int rec_args; 1343 1344 rep_args = has_required_arg(rep_script_path); 1345 rec_args = (argc - 1) - rep_args; 1346 if (rec_args < 0) { 1347 fprintf(stderr, " %s script requires options." 1348 "\n\n See perf script -l for available " 1349 "scripts and options.\n", argv[0]); 1350 usage_with_options(script_usage, options); 1351 } 1352 } 1353 1354 if (pipe(live_pipe) < 0) { 1355 perror("failed to create pipe"); 1356 return -1; 1357 } 1358 1359 pid = fork(); 1360 if (pid < 0) { 1361 perror("failed to fork"); 1362 return -1; 1363 } 1364 1365 if (!pid) { 1366 j = 0; 1367 1368 dup2(live_pipe[1], 1); 1369 close(live_pipe[0]); 1370 1371 if (is_top_script(argv[0])) { 1372 system_wide = true; 1373 } else if (!system_wide) { 1374 if (have_cmd(argc - rep_args, &argv[rep_args]) != 0) { 1375 err = -1; 1376 goto out; 1377 } 1378 } 1379 1380 __argv = malloc((argc + 6) * sizeof(const char *)); 1381 if (!__argv) { 1382 pr_err("malloc failed\n"); 1383 err = -ENOMEM; 1384 goto out; 1385 } 1386 1387 __argv[j++] = "/bin/sh"; 1388 __argv[j++] = rec_script_path; 1389 if (system_wide) 1390 __argv[j++] = "-a"; 1391 __argv[j++] = "-q"; 1392 __argv[j++] = "-o"; 1393 __argv[j++] = "-"; 1394 for (i = rep_args + 1; i < argc; i++) 1395 __argv[j++] = argv[i]; 1396 __argv[j++] = NULL; 1397 1398 execvp("/bin/sh", (char **)__argv); 1399 free(__argv); 1400 exit(-1); 1401 } 1402 1403 dup2(live_pipe[0], 0); 1404 close(live_pipe[1]); 1405 1406 __argv = malloc((argc + 4) * sizeof(const char *)); 1407 if (!__argv) { 1408 pr_err("malloc failed\n"); 1409 err = -ENOMEM; 1410 goto out; 1411 } 1412 1413 j = 0; 1414 __argv[j++] = "/bin/sh"; 1415 __argv[j++] = rep_script_path; 1416 for (i = 1; i < rep_args + 1; i++) 1417 __argv[j++] = argv[i]; 1418 __argv[j++] = "-i"; 1419 __argv[j++] = "-"; 1420 __argv[j++] = NULL; 1421 1422 execvp("/bin/sh", (char **)__argv); 1423 free(__argv); 1424 exit(-1); 1425 } 1426 1427 if (rec_script_path) 1428 script_path = rec_script_path; 1429 if (rep_script_path) 1430 script_path = rep_script_path; 1431 1432 if (script_path) { 1433 j = 0; 1434 1435 if (!rec_script_path) 1436 system_wide = false; 1437 else if (!system_wide) { 1438 if (have_cmd(argc - 1, &argv[1]) != 0) { 1439 err = -1; 1440 goto out; 1441 } 1442 } 1443 1444 __argv = malloc((argc + 2) * sizeof(const char *)); 1445 if (!__argv) { 1446 pr_err("malloc failed\n"); 1447 err = -ENOMEM; 1448 goto out; 1449 } 1450 1451 __argv[j++] = "/bin/sh"; 1452 __argv[j++] = script_path; 1453 if (system_wide) 1454 __argv[j++] = "-a"; 1455 for (i = 2; i < argc; i++) 1456 __argv[j++] = argv[i]; 1457 __argv[j++] = NULL; 1458 1459 execvp("/bin/sh", (char **)__argv); 1460 free(__argv); 1461 exit(-1); 1462 } 1463 1464 if (symbol__init() < 0) 1465 return -1; 1466 if (!script_name) 1467 setup_pager(); 1468 1469 session = perf_session__new(input_name, O_RDONLY, 0, false, 1470 &perf_script); 1471 if (session == NULL) 1472 return -ENOMEM; 1473 1474 if (cpu_list) { 1475 if (perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap)) 1476 return -1; 1477 } 1478 1479 if (!script_name && !generate_script_lang) 1480 perf_session__fprintf_info(session, stdout, show_full_info); 1481 1482 if (!no_callchain) 1483 symbol_conf.use_callchain = true; 1484 else 1485 symbol_conf.use_callchain = false; 1486 1487 if (generate_script_lang) { 1488 struct stat perf_stat; 1489 int input; 1490 1491 if (output_set_by_user()) { 1492 fprintf(stderr, 1493 "custom fields not supported for generated scripts"); 1494 return -1; 1495 } 1496 1497 input = open(session->filename, O_RDONLY); /* input_name */ 1498 if (input < 0) { 1499 perror("failed to open file"); 1500 return -1; 1501 } 1502 1503 err = fstat(input, &perf_stat); 1504 if (err < 0) { 1505 perror("failed to stat file"); 1506 return -1; 1507 } 1508 1509 if (!perf_stat.st_size) { 1510 fprintf(stderr, "zero-sized file, nothing to do!\n"); 1511 return 0; 1512 } 1513 1514 scripting_ops = script_spec__lookup(generate_script_lang); 1515 if (!scripting_ops) { 1516 fprintf(stderr, "invalid language specifier"); 1517 return -1; 1518 } 1519 1520 err = scripting_ops->generate_script(session->pevent, 1521 "perf-script"); 1522 goto out; 1523 } 1524 1525 if (script_name) { 1526 err = scripting_ops->start_script(script_name, argc, argv); 1527 if (err) 1528 goto out; 1529 pr_debug("perf script started with script %s\n\n", script_name); 1530 } 1531 1532 1533 err = perf_session__check_output_opt(session); 1534 if (err < 0) 1535 goto out; 1536 1537 err = __cmd_script(session); 1538 1539 perf_session__delete(session); 1540 cleanup_scripting(); 1541 out: 1542 return err; 1543 } 1544