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