1 #include "builtin.h" 2 3 #include "perf.h" 4 #include "util/cache.h" 5 #include "util/debug.h" 6 #include <subcmd/exec-cmd.h> 7 #include "util/header.h" 8 #include <subcmd/parse-options.h> 9 #include "util/perf_regs.h" 10 #include "util/session.h" 11 #include "util/tool.h" 12 #include "util/symbol.h" 13 #include "util/thread.h" 14 #include "util/trace-event.h" 15 #include "util/util.h" 16 #include "util/evlist.h" 17 #include "util/evsel.h" 18 #include "util/sort.h" 19 #include "util/data.h" 20 #include "util/auxtrace.h" 21 #include "util/cpumap.h" 22 #include "util/thread_map.h" 23 #include "util/stat.h" 24 #include <linux/bitmap.h> 25 #include "asm/bug.h" 26 27 static char const *script_name; 28 static char const *generate_script_lang; 29 static bool debug_mode; 30 static u64 last_timestamp; 31 static u64 nr_unordered; 32 static bool no_callchain; 33 static bool latency_format; 34 static bool system_wide; 35 static bool print_flags; 36 static bool nanosecs; 37 static const char *cpu_list; 38 static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); 39 static struct perf_stat_config stat_config; 40 41 unsigned int scripting_max_stack = PERF_MAX_STACK_DEPTH; 42 43 enum perf_output_field { 44 PERF_OUTPUT_COMM = 1U << 0, 45 PERF_OUTPUT_TID = 1U << 1, 46 PERF_OUTPUT_PID = 1U << 2, 47 PERF_OUTPUT_TIME = 1U << 3, 48 PERF_OUTPUT_CPU = 1U << 4, 49 PERF_OUTPUT_EVNAME = 1U << 5, 50 PERF_OUTPUT_TRACE = 1U << 6, 51 PERF_OUTPUT_IP = 1U << 7, 52 PERF_OUTPUT_SYM = 1U << 8, 53 PERF_OUTPUT_DSO = 1U << 9, 54 PERF_OUTPUT_ADDR = 1U << 10, 55 PERF_OUTPUT_SYMOFFSET = 1U << 11, 56 PERF_OUTPUT_SRCLINE = 1U << 12, 57 PERF_OUTPUT_PERIOD = 1U << 13, 58 PERF_OUTPUT_IREGS = 1U << 14, 59 PERF_OUTPUT_BRSTACK = 1U << 15, 60 PERF_OUTPUT_BRSTACKSYM = 1U << 16, 61 }; 62 63 struct output_option { 64 const char *str; 65 enum perf_output_field field; 66 } all_output_options[] = { 67 {.str = "comm", .field = PERF_OUTPUT_COMM}, 68 {.str = "tid", .field = PERF_OUTPUT_TID}, 69 {.str = "pid", .field = PERF_OUTPUT_PID}, 70 {.str = "time", .field = PERF_OUTPUT_TIME}, 71 {.str = "cpu", .field = PERF_OUTPUT_CPU}, 72 {.str = "event", .field = PERF_OUTPUT_EVNAME}, 73 {.str = "trace", .field = PERF_OUTPUT_TRACE}, 74 {.str = "ip", .field = PERF_OUTPUT_IP}, 75 {.str = "sym", .field = PERF_OUTPUT_SYM}, 76 {.str = "dso", .field = PERF_OUTPUT_DSO}, 77 {.str = "addr", .field = PERF_OUTPUT_ADDR}, 78 {.str = "symoff", .field = PERF_OUTPUT_SYMOFFSET}, 79 {.str = "srcline", .field = PERF_OUTPUT_SRCLINE}, 80 {.str = "period", .field = PERF_OUTPUT_PERIOD}, 81 {.str = "iregs", .field = PERF_OUTPUT_IREGS}, 82 {.str = "brstack", .field = PERF_OUTPUT_BRSTACK}, 83 {.str = "brstacksym", .field = PERF_OUTPUT_BRSTACKSYM}, 84 }; 85 86 /* default set to maintain compatibility with current format */ 87 static struct { 88 bool user_set; 89 bool wildcard_set; 90 unsigned int print_ip_opts; 91 u64 fields; 92 u64 invalid_fields; 93 } output[PERF_TYPE_MAX] = { 94 95 [PERF_TYPE_HARDWARE] = { 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_IP | 101 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO | 102 PERF_OUTPUT_PERIOD, 103 104 .invalid_fields = PERF_OUTPUT_TRACE, 105 }, 106 107 [PERF_TYPE_SOFTWARE] = { 108 .user_set = false, 109 110 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | 111 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | 112 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP | 113 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO | 114 PERF_OUTPUT_PERIOD, 115 116 .invalid_fields = PERF_OUTPUT_TRACE, 117 }, 118 119 [PERF_TYPE_TRACEPOINT] = { 120 .user_set = false, 121 122 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | 123 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | 124 PERF_OUTPUT_EVNAME | PERF_OUTPUT_TRACE, 125 }, 126 127 [PERF_TYPE_RAW] = { 128 .user_set = false, 129 130 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | 131 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | 132 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP | 133 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO | 134 PERF_OUTPUT_PERIOD, 135 136 .invalid_fields = PERF_OUTPUT_TRACE, 137 }, 138 139 [PERF_TYPE_BREAKPOINT] = { 140 .user_set = false, 141 142 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | 143 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | 144 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP | 145 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO | 146 PERF_OUTPUT_PERIOD, 147 148 .invalid_fields = PERF_OUTPUT_TRACE, 149 }, 150 }; 151 152 static bool output_set_by_user(void) 153 { 154 int j; 155 for (j = 0; j < PERF_TYPE_MAX; ++j) { 156 if (output[j].user_set) 157 return true; 158 } 159 return false; 160 } 161 162 static const char *output_field2str(enum perf_output_field field) 163 { 164 int i, imax = ARRAY_SIZE(all_output_options); 165 const char *str = ""; 166 167 for (i = 0; i < imax; ++i) { 168 if (all_output_options[i].field == field) { 169 str = all_output_options[i].str; 170 break; 171 } 172 } 173 return str; 174 } 175 176 #define PRINT_FIELD(x) (output[attr->type].fields & PERF_OUTPUT_##x) 177 178 static int perf_evsel__do_check_stype(struct perf_evsel *evsel, 179 u64 sample_type, const char *sample_msg, 180 enum perf_output_field field, 181 bool allow_user_set) 182 { 183 struct perf_event_attr *attr = &evsel->attr; 184 int type = attr->type; 185 const char *evname; 186 187 if (attr->sample_type & sample_type) 188 return 0; 189 190 if (output[type].user_set) { 191 if (allow_user_set) 192 return 0; 193 evname = perf_evsel__name(evsel); 194 pr_err("Samples for '%s' event do not have %s attribute set. " 195 "Cannot print '%s' field.\n", 196 evname, sample_msg, output_field2str(field)); 197 return -1; 198 } 199 200 /* user did not ask for it explicitly so remove from the default list */ 201 output[type].fields &= ~field; 202 evname = perf_evsel__name(evsel); 203 pr_debug("Samples for '%s' event do not have %s attribute set. " 204 "Skipping '%s' field.\n", 205 evname, sample_msg, output_field2str(field)); 206 207 return 0; 208 } 209 210 static int perf_evsel__check_stype(struct perf_evsel *evsel, 211 u64 sample_type, const char *sample_msg, 212 enum perf_output_field field) 213 { 214 return perf_evsel__do_check_stype(evsel, sample_type, sample_msg, field, 215 false); 216 } 217 218 static int perf_evsel__check_attr(struct perf_evsel *evsel, 219 struct perf_session *session) 220 { 221 struct perf_event_attr *attr = &evsel->attr; 222 bool allow_user_set; 223 224 if (perf_header__has_feat(&session->header, HEADER_STAT)) 225 return 0; 226 227 allow_user_set = perf_header__has_feat(&session->header, 228 HEADER_AUXTRACE); 229 230 if (PRINT_FIELD(TRACE) && 231 !perf_session__has_traces(session, "record -R")) 232 return -EINVAL; 233 234 if (PRINT_FIELD(IP)) { 235 if (perf_evsel__check_stype(evsel, PERF_SAMPLE_IP, "IP", 236 PERF_OUTPUT_IP)) 237 return -EINVAL; 238 } 239 240 if (PRINT_FIELD(ADDR) && 241 perf_evsel__do_check_stype(evsel, PERF_SAMPLE_ADDR, "ADDR", 242 PERF_OUTPUT_ADDR, allow_user_set)) 243 return -EINVAL; 244 245 if (PRINT_FIELD(SYM) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) { 246 pr_err("Display of symbols requested but neither sample IP nor " 247 "sample address\nis selected. Hence, no addresses to convert " 248 "to symbols.\n"); 249 return -EINVAL; 250 } 251 if (PRINT_FIELD(SYMOFFSET) && !PRINT_FIELD(SYM)) { 252 pr_err("Display of offsets requested but symbol is not" 253 "selected.\n"); 254 return -EINVAL; 255 } 256 if (PRINT_FIELD(DSO) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) { 257 pr_err("Display of DSO requested but neither sample IP nor " 258 "sample address\nis selected. Hence, no addresses to convert " 259 "to DSO.\n"); 260 return -EINVAL; 261 } 262 if (PRINT_FIELD(SRCLINE) && !PRINT_FIELD(IP)) { 263 pr_err("Display of source line number requested but sample IP is not\n" 264 "selected. Hence, no address to lookup the source line number.\n"); 265 return -EINVAL; 266 } 267 268 if ((PRINT_FIELD(PID) || PRINT_FIELD(TID)) && 269 perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID", 270 PERF_OUTPUT_TID|PERF_OUTPUT_PID)) 271 return -EINVAL; 272 273 if (PRINT_FIELD(TIME) && 274 perf_evsel__check_stype(evsel, PERF_SAMPLE_TIME, "TIME", 275 PERF_OUTPUT_TIME)) 276 return -EINVAL; 277 278 if (PRINT_FIELD(CPU) && 279 perf_evsel__do_check_stype(evsel, PERF_SAMPLE_CPU, "CPU", 280 PERF_OUTPUT_CPU, allow_user_set)) 281 return -EINVAL; 282 283 if (PRINT_FIELD(PERIOD) && 284 perf_evsel__check_stype(evsel, PERF_SAMPLE_PERIOD, "PERIOD", 285 PERF_OUTPUT_PERIOD)) 286 return -EINVAL; 287 288 if (PRINT_FIELD(IREGS) && 289 perf_evsel__check_stype(evsel, PERF_SAMPLE_REGS_INTR, "IREGS", 290 PERF_OUTPUT_IREGS)) 291 return -EINVAL; 292 293 return 0; 294 } 295 296 static void set_print_ip_opts(struct perf_event_attr *attr) 297 { 298 unsigned int type = attr->type; 299 300 output[type].print_ip_opts = 0; 301 if (PRINT_FIELD(IP)) 302 output[type].print_ip_opts |= PRINT_IP_OPT_IP; 303 304 if (PRINT_FIELD(SYM)) 305 output[type].print_ip_opts |= PRINT_IP_OPT_SYM; 306 307 if (PRINT_FIELD(DSO)) 308 output[type].print_ip_opts |= PRINT_IP_OPT_DSO; 309 310 if (PRINT_FIELD(SYMOFFSET)) 311 output[type].print_ip_opts |= PRINT_IP_OPT_SYMOFFSET; 312 313 if (PRINT_FIELD(SRCLINE)) 314 output[type].print_ip_opts |= PRINT_IP_OPT_SRCLINE; 315 } 316 317 /* 318 * verify all user requested events exist and the samples 319 * have the expected data 320 */ 321 static int perf_session__check_output_opt(struct perf_session *session) 322 { 323 int j; 324 struct perf_evsel *evsel; 325 326 for (j = 0; j < PERF_TYPE_MAX; ++j) { 327 evsel = perf_session__find_first_evtype(session, j); 328 329 /* 330 * even if fields is set to 0 (ie., show nothing) event must 331 * exist if user explicitly includes it on the command line 332 */ 333 if (!evsel && output[j].user_set && !output[j].wildcard_set) { 334 pr_err("%s events do not exist. " 335 "Remove corresponding -f option to proceed.\n", 336 event_type(j)); 337 return -1; 338 } 339 340 if (evsel && output[j].fields && 341 perf_evsel__check_attr(evsel, session)) 342 return -1; 343 344 if (evsel == NULL) 345 continue; 346 347 set_print_ip_opts(&evsel->attr); 348 } 349 350 if (!no_callchain) { 351 bool use_callchain = false; 352 353 evlist__for_each(session->evlist, evsel) { 354 if (evsel->attr.sample_type & PERF_SAMPLE_CALLCHAIN) { 355 use_callchain = true; 356 break; 357 } 358 } 359 if (!use_callchain) 360 symbol_conf.use_callchain = false; 361 } 362 363 /* 364 * set default for tracepoints to print symbols only 365 * if callchains are present 366 */ 367 if (symbol_conf.use_callchain && 368 !output[PERF_TYPE_TRACEPOINT].user_set) { 369 struct perf_event_attr *attr; 370 371 j = PERF_TYPE_TRACEPOINT; 372 evsel = perf_session__find_first_evtype(session, j); 373 if (evsel == NULL) 374 goto out; 375 376 attr = &evsel->attr; 377 378 if (attr->sample_type & PERF_SAMPLE_CALLCHAIN) { 379 output[j].fields |= PERF_OUTPUT_IP; 380 output[j].fields |= PERF_OUTPUT_SYM; 381 output[j].fields |= PERF_OUTPUT_DSO; 382 set_print_ip_opts(attr); 383 } 384 } 385 386 out: 387 return 0; 388 } 389 390 static void print_sample_iregs(union perf_event *event __maybe_unused, 391 struct perf_sample *sample, 392 struct thread *thread __maybe_unused, 393 struct perf_event_attr *attr) 394 { 395 struct regs_dump *regs = &sample->intr_regs; 396 uint64_t mask = attr->sample_regs_intr; 397 unsigned i = 0, r; 398 399 if (!regs) 400 return; 401 402 for_each_set_bit(r, (unsigned long *) &mask, sizeof(mask) * 8) { 403 u64 val = regs->regs[i++]; 404 printf("%5s:0x%"PRIx64" ", perf_reg_name(r), val); 405 } 406 } 407 408 static void print_sample_start(struct perf_sample *sample, 409 struct thread *thread, 410 struct perf_evsel *evsel) 411 { 412 struct perf_event_attr *attr = &evsel->attr; 413 unsigned long secs; 414 unsigned long usecs; 415 unsigned long long nsecs; 416 417 if (PRINT_FIELD(COMM)) { 418 if (latency_format) 419 printf("%8.8s ", thread__comm_str(thread)); 420 else if (PRINT_FIELD(IP) && symbol_conf.use_callchain) 421 printf("%s ", thread__comm_str(thread)); 422 else 423 printf("%16s ", thread__comm_str(thread)); 424 } 425 426 if (PRINT_FIELD(PID) && PRINT_FIELD(TID)) 427 printf("%5d/%-5d ", sample->pid, sample->tid); 428 else if (PRINT_FIELD(PID)) 429 printf("%5d ", sample->pid); 430 else if (PRINT_FIELD(TID)) 431 printf("%5d ", sample->tid); 432 433 if (PRINT_FIELD(CPU)) { 434 if (latency_format) 435 printf("%3d ", sample->cpu); 436 else 437 printf("[%03d] ", sample->cpu); 438 } 439 440 if (PRINT_FIELD(TIME)) { 441 nsecs = sample->time; 442 secs = nsecs / NSECS_PER_SEC; 443 nsecs -= secs * NSECS_PER_SEC; 444 usecs = nsecs / NSECS_PER_USEC; 445 if (nanosecs) 446 printf("%5lu.%09llu: ", secs, nsecs); 447 else 448 printf("%5lu.%06lu: ", secs, usecs); 449 } 450 } 451 452 static inline char 453 mispred_str(struct branch_entry *br) 454 { 455 if (!(br->flags.mispred || br->flags.predicted)) 456 return '-'; 457 458 return br->flags.predicted ? 'P' : 'M'; 459 } 460 461 static void print_sample_brstack(union perf_event *event __maybe_unused, 462 struct perf_sample *sample, 463 struct thread *thread __maybe_unused, 464 struct perf_event_attr *attr __maybe_unused) 465 { 466 struct branch_stack *br = sample->branch_stack; 467 u64 i; 468 469 if (!(br && br->nr)) 470 return; 471 472 for (i = 0; i < br->nr; i++) { 473 printf(" 0x%"PRIx64"/0x%"PRIx64"/%c/%c/%c/%d ", 474 br->entries[i].from, 475 br->entries[i].to, 476 mispred_str( br->entries + i), 477 br->entries[i].flags.in_tx? 'X' : '-', 478 br->entries[i].flags.abort? 'A' : '-', 479 br->entries[i].flags.cycles); 480 } 481 } 482 483 static void print_sample_brstacksym(union perf_event *event __maybe_unused, 484 struct perf_sample *sample, 485 struct thread *thread __maybe_unused, 486 struct perf_event_attr *attr __maybe_unused) 487 { 488 struct branch_stack *br = sample->branch_stack; 489 struct addr_location alf, alt; 490 u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; 491 u64 i, from, to; 492 493 if (!(br && br->nr)) 494 return; 495 496 for (i = 0; i < br->nr; i++) { 497 498 memset(&alf, 0, sizeof(alf)); 499 memset(&alt, 0, sizeof(alt)); 500 from = br->entries[i].from; 501 to = br->entries[i].to; 502 503 thread__find_addr_map(thread, cpumode, MAP__FUNCTION, from, &alf); 504 if (alf.map) 505 alf.sym = map__find_symbol(alf.map, alf.addr, NULL); 506 507 thread__find_addr_map(thread, cpumode, MAP__FUNCTION, to, &alt); 508 if (alt.map) 509 alt.sym = map__find_symbol(alt.map, alt.addr, NULL); 510 511 symbol__fprintf_symname_offs(alf.sym, &alf, stdout); 512 putchar('/'); 513 symbol__fprintf_symname_offs(alt.sym, &alt, stdout); 514 printf("/%c/%c/%c/%d ", 515 mispred_str( br->entries + i), 516 br->entries[i].flags.in_tx? 'X' : '-', 517 br->entries[i].flags.abort? 'A' : '-', 518 br->entries[i].flags.cycles); 519 } 520 } 521 522 523 static void print_sample_addr(union perf_event *event, 524 struct perf_sample *sample, 525 struct thread *thread, 526 struct perf_event_attr *attr) 527 { 528 struct addr_location al; 529 530 printf("%16" PRIx64, sample->addr); 531 532 if (!sample_addr_correlates_sym(attr)) 533 return; 534 535 perf_event__preprocess_sample_addr(event, sample, thread, &al); 536 537 if (PRINT_FIELD(SYM)) { 538 printf(" "); 539 if (PRINT_FIELD(SYMOFFSET)) 540 symbol__fprintf_symname_offs(al.sym, &al, stdout); 541 else 542 symbol__fprintf_symname(al.sym, stdout); 543 } 544 545 if (PRINT_FIELD(DSO)) { 546 printf(" ("); 547 map__fprintf_dsoname(al.map, stdout); 548 printf(")"); 549 } 550 } 551 552 static void print_sample_bts(union perf_event *event, 553 struct perf_sample *sample, 554 struct perf_evsel *evsel, 555 struct thread *thread, 556 struct addr_location *al) 557 { 558 struct perf_event_attr *attr = &evsel->attr; 559 bool print_srcline_last = false; 560 561 /* print branch_from information */ 562 if (PRINT_FIELD(IP)) { 563 unsigned int print_opts = output[attr->type].print_ip_opts; 564 565 if (symbol_conf.use_callchain && sample->callchain) { 566 printf("\n"); 567 } else { 568 printf(" "); 569 if (print_opts & PRINT_IP_OPT_SRCLINE) { 570 print_srcline_last = true; 571 print_opts &= ~PRINT_IP_OPT_SRCLINE; 572 } 573 } 574 perf_evsel__print_ip(evsel, sample, al, print_opts, 575 scripting_max_stack); 576 } 577 578 /* print branch_to information */ 579 if (PRINT_FIELD(ADDR) || 580 ((evsel->attr.sample_type & PERF_SAMPLE_ADDR) && 581 !output[attr->type].user_set)) { 582 printf(" => "); 583 print_sample_addr(event, sample, thread, attr); 584 } 585 586 if (print_srcline_last) 587 map__fprintf_srcline(al->map, al->addr, "\n ", stdout); 588 589 printf("\n"); 590 } 591 592 static void print_sample_flags(u32 flags) 593 { 594 const char *chars = PERF_IP_FLAG_CHARS; 595 const int n = strlen(PERF_IP_FLAG_CHARS); 596 char str[33]; 597 int i, pos = 0; 598 599 for (i = 0; i < n; i++, flags >>= 1) { 600 if (flags & 1) 601 str[pos++] = chars[i]; 602 } 603 for (; i < 32; i++, flags >>= 1) { 604 if (flags & 1) 605 str[pos++] = '?'; 606 } 607 str[pos] = 0; 608 printf(" %-4s ", str); 609 } 610 611 struct perf_script { 612 struct perf_tool tool; 613 struct perf_session *session; 614 bool show_task_events; 615 bool show_mmap_events; 616 bool show_switch_events; 617 bool allocated; 618 struct cpu_map *cpus; 619 struct thread_map *threads; 620 }; 621 622 static void process_event(struct perf_script *script __maybe_unused, union perf_event *event, 623 struct perf_sample *sample, struct perf_evsel *evsel, 624 struct addr_location *al) 625 { 626 struct thread *thread = al->thread; 627 struct perf_event_attr *attr = &evsel->attr; 628 629 if (output[attr->type].fields == 0) 630 return; 631 632 print_sample_start(sample, thread, evsel); 633 634 if (PRINT_FIELD(PERIOD)) 635 printf("%10" PRIu64 " ", sample->period); 636 637 if (PRINT_FIELD(EVNAME)) { 638 const char *evname = perf_evsel__name(evsel); 639 printf("%s: ", evname ? evname : "[unknown]"); 640 } 641 642 if (print_flags) 643 print_sample_flags(sample->flags); 644 645 if (is_bts_event(attr)) { 646 print_sample_bts(event, sample, evsel, thread, al); 647 return; 648 } 649 650 if (PRINT_FIELD(TRACE)) 651 event_format__print(evsel->tp_format, sample->cpu, 652 sample->raw_data, sample->raw_size); 653 if (PRINT_FIELD(ADDR)) 654 print_sample_addr(event, sample, thread, attr); 655 656 if (PRINT_FIELD(IP)) { 657 if (!symbol_conf.use_callchain) 658 printf(" "); 659 else 660 printf("\n"); 661 662 perf_evsel__print_ip(evsel, sample, al, 663 output[attr->type].print_ip_opts, 664 scripting_max_stack); 665 } 666 667 if (PRINT_FIELD(IREGS)) 668 print_sample_iregs(event, sample, thread, attr); 669 670 if (PRINT_FIELD(BRSTACK)) 671 print_sample_brstack(event, sample, thread, attr); 672 else if (PRINT_FIELD(BRSTACKSYM)) 673 print_sample_brstacksym(event, sample, thread, attr); 674 675 printf("\n"); 676 } 677 678 static struct scripting_ops *scripting_ops; 679 680 static void __process_stat(struct perf_evsel *counter, u64 tstamp) 681 { 682 int nthreads = thread_map__nr(counter->threads); 683 int ncpus = perf_evsel__nr_cpus(counter); 684 int cpu, thread; 685 static int header_printed; 686 687 if (counter->system_wide) 688 nthreads = 1; 689 690 if (!header_printed) { 691 printf("%3s %8s %15s %15s %15s %15s %s\n", 692 "CPU", "THREAD", "VAL", "ENA", "RUN", "TIME", "EVENT"); 693 header_printed = 1; 694 } 695 696 for (thread = 0; thread < nthreads; thread++) { 697 for (cpu = 0; cpu < ncpus; cpu++) { 698 struct perf_counts_values *counts; 699 700 counts = perf_counts(counter->counts, cpu, thread); 701 702 printf("%3d %8d %15" PRIu64 " %15" PRIu64 " %15" PRIu64 " %15" PRIu64 " %s\n", 703 counter->cpus->map[cpu], 704 thread_map__pid(counter->threads, thread), 705 counts->val, 706 counts->ena, 707 counts->run, 708 tstamp, 709 perf_evsel__name(counter)); 710 } 711 } 712 } 713 714 static void process_stat(struct perf_evsel *counter, u64 tstamp) 715 { 716 if (scripting_ops && scripting_ops->process_stat) 717 scripting_ops->process_stat(&stat_config, counter, tstamp); 718 else 719 __process_stat(counter, tstamp); 720 } 721 722 static void process_stat_interval(u64 tstamp) 723 { 724 if (scripting_ops && scripting_ops->process_stat_interval) 725 scripting_ops->process_stat_interval(tstamp); 726 } 727 728 static void setup_scripting(void) 729 { 730 setup_perl_scripting(); 731 setup_python_scripting(); 732 } 733 734 static int flush_scripting(void) 735 { 736 return scripting_ops ? scripting_ops->flush_script() : 0; 737 } 738 739 static int cleanup_scripting(void) 740 { 741 pr_debug("\nperf script stopped\n"); 742 743 return scripting_ops ? scripting_ops->stop_script() : 0; 744 } 745 746 static int process_sample_event(struct perf_tool *tool, 747 union perf_event *event, 748 struct perf_sample *sample, 749 struct perf_evsel *evsel, 750 struct machine *machine) 751 { 752 struct perf_script *scr = container_of(tool, struct perf_script, tool); 753 struct addr_location al; 754 755 if (debug_mode) { 756 if (sample->time < last_timestamp) { 757 pr_err("Samples misordered, previous: %" PRIu64 758 " this: %" PRIu64 "\n", last_timestamp, 759 sample->time); 760 nr_unordered++; 761 } 762 last_timestamp = sample->time; 763 return 0; 764 } 765 766 if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) { 767 pr_err("problem processing %d event, skipping it.\n", 768 event->header.type); 769 return -1; 770 } 771 772 if (al.filtered) 773 goto out_put; 774 775 if (cpu_list && !test_bit(sample->cpu, cpu_bitmap)) 776 goto out_put; 777 778 if (scripting_ops) 779 scripting_ops->process_event(event, sample, evsel, &al); 780 else 781 process_event(scr, event, sample, evsel, &al); 782 783 out_put: 784 addr_location__put(&al); 785 return 0; 786 } 787 788 static int process_attr(struct perf_tool *tool, union perf_event *event, 789 struct perf_evlist **pevlist) 790 { 791 struct perf_script *scr = container_of(tool, struct perf_script, tool); 792 struct perf_evlist *evlist; 793 struct perf_evsel *evsel, *pos; 794 int err; 795 796 err = perf_event__process_attr(tool, event, pevlist); 797 if (err) 798 return err; 799 800 evlist = *pevlist; 801 evsel = perf_evlist__last(*pevlist); 802 803 if (evsel->attr.type >= PERF_TYPE_MAX) 804 return 0; 805 806 evlist__for_each(evlist, pos) { 807 if (pos->attr.type == evsel->attr.type && pos != evsel) 808 return 0; 809 } 810 811 set_print_ip_opts(&evsel->attr); 812 813 if (evsel->attr.sample_type) 814 err = perf_evsel__check_attr(evsel, scr->session); 815 816 return err; 817 } 818 819 static int process_comm_event(struct perf_tool *tool, 820 union perf_event *event, 821 struct perf_sample *sample, 822 struct machine *machine) 823 { 824 struct thread *thread; 825 struct perf_script *script = container_of(tool, struct perf_script, tool); 826 struct perf_session *session = script->session; 827 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id); 828 int ret = -1; 829 830 thread = machine__findnew_thread(machine, event->comm.pid, event->comm.tid); 831 if (thread == NULL) { 832 pr_debug("problem processing COMM event, skipping it.\n"); 833 return -1; 834 } 835 836 if (perf_event__process_comm(tool, event, sample, machine) < 0) 837 goto out; 838 839 if (!evsel->attr.sample_id_all) { 840 sample->cpu = 0; 841 sample->time = 0; 842 sample->tid = event->comm.tid; 843 sample->pid = event->comm.pid; 844 } 845 print_sample_start(sample, thread, evsel); 846 perf_event__fprintf(event, stdout); 847 ret = 0; 848 out: 849 thread__put(thread); 850 return ret; 851 } 852 853 static int process_fork_event(struct perf_tool *tool, 854 union perf_event *event, 855 struct perf_sample *sample, 856 struct machine *machine) 857 { 858 struct thread *thread; 859 struct perf_script *script = container_of(tool, struct perf_script, tool); 860 struct perf_session *session = script->session; 861 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id); 862 863 if (perf_event__process_fork(tool, event, sample, machine) < 0) 864 return -1; 865 866 thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid); 867 if (thread == NULL) { 868 pr_debug("problem processing FORK event, skipping it.\n"); 869 return -1; 870 } 871 872 if (!evsel->attr.sample_id_all) { 873 sample->cpu = 0; 874 sample->time = event->fork.time; 875 sample->tid = event->fork.tid; 876 sample->pid = event->fork.pid; 877 } 878 print_sample_start(sample, thread, evsel); 879 perf_event__fprintf(event, stdout); 880 thread__put(thread); 881 882 return 0; 883 } 884 static int process_exit_event(struct perf_tool *tool, 885 union perf_event *event, 886 struct perf_sample *sample, 887 struct machine *machine) 888 { 889 int err = 0; 890 struct thread *thread; 891 struct perf_script *script = container_of(tool, struct perf_script, tool); 892 struct perf_session *session = script->session; 893 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id); 894 895 thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid); 896 if (thread == NULL) { 897 pr_debug("problem processing EXIT event, skipping it.\n"); 898 return -1; 899 } 900 901 if (!evsel->attr.sample_id_all) { 902 sample->cpu = 0; 903 sample->time = 0; 904 sample->tid = event->fork.tid; 905 sample->pid = event->fork.pid; 906 } 907 print_sample_start(sample, thread, evsel); 908 perf_event__fprintf(event, stdout); 909 910 if (perf_event__process_exit(tool, event, sample, machine) < 0) 911 err = -1; 912 913 thread__put(thread); 914 return err; 915 } 916 917 static int process_mmap_event(struct perf_tool *tool, 918 union perf_event *event, 919 struct perf_sample *sample, 920 struct machine *machine) 921 { 922 struct thread *thread; 923 struct perf_script *script = container_of(tool, struct perf_script, tool); 924 struct perf_session *session = script->session; 925 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id); 926 927 if (perf_event__process_mmap(tool, event, sample, machine) < 0) 928 return -1; 929 930 thread = machine__findnew_thread(machine, event->mmap.pid, event->mmap.tid); 931 if (thread == NULL) { 932 pr_debug("problem processing MMAP event, skipping it.\n"); 933 return -1; 934 } 935 936 if (!evsel->attr.sample_id_all) { 937 sample->cpu = 0; 938 sample->time = 0; 939 sample->tid = event->mmap.tid; 940 sample->pid = event->mmap.pid; 941 } 942 print_sample_start(sample, thread, evsel); 943 perf_event__fprintf(event, stdout); 944 thread__put(thread); 945 return 0; 946 } 947 948 static int process_mmap2_event(struct perf_tool *tool, 949 union perf_event *event, 950 struct perf_sample *sample, 951 struct machine *machine) 952 { 953 struct thread *thread; 954 struct perf_script *script = container_of(tool, struct perf_script, tool); 955 struct perf_session *session = script->session; 956 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id); 957 958 if (perf_event__process_mmap2(tool, event, sample, machine) < 0) 959 return -1; 960 961 thread = machine__findnew_thread(machine, event->mmap2.pid, event->mmap2.tid); 962 if (thread == NULL) { 963 pr_debug("problem processing MMAP2 event, skipping it.\n"); 964 return -1; 965 } 966 967 if (!evsel->attr.sample_id_all) { 968 sample->cpu = 0; 969 sample->time = 0; 970 sample->tid = event->mmap2.tid; 971 sample->pid = event->mmap2.pid; 972 } 973 print_sample_start(sample, thread, evsel); 974 perf_event__fprintf(event, stdout); 975 thread__put(thread); 976 return 0; 977 } 978 979 static int process_switch_event(struct perf_tool *tool, 980 union perf_event *event, 981 struct perf_sample *sample, 982 struct machine *machine) 983 { 984 struct thread *thread; 985 struct perf_script *script = container_of(tool, struct perf_script, tool); 986 struct perf_session *session = script->session; 987 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id); 988 989 if (perf_event__process_switch(tool, event, sample, machine) < 0) 990 return -1; 991 992 thread = machine__findnew_thread(machine, sample->pid, 993 sample->tid); 994 if (thread == NULL) { 995 pr_debug("problem processing SWITCH event, skipping it.\n"); 996 return -1; 997 } 998 999 print_sample_start(sample, thread, evsel); 1000 perf_event__fprintf(event, stdout); 1001 thread__put(thread); 1002 return 0; 1003 } 1004 1005 static void sig_handler(int sig __maybe_unused) 1006 { 1007 session_done = 1; 1008 } 1009 1010 static int __cmd_script(struct perf_script *script) 1011 { 1012 int ret; 1013 1014 signal(SIGINT, sig_handler); 1015 1016 /* override event processing functions */ 1017 if (script->show_task_events) { 1018 script->tool.comm = process_comm_event; 1019 script->tool.fork = process_fork_event; 1020 script->tool.exit = process_exit_event; 1021 } 1022 if (script->show_mmap_events) { 1023 script->tool.mmap = process_mmap_event; 1024 script->tool.mmap2 = process_mmap2_event; 1025 } 1026 if (script->show_switch_events) 1027 script->tool.context_switch = process_switch_event; 1028 1029 ret = perf_session__process_events(script->session); 1030 1031 if (debug_mode) 1032 pr_err("Misordered timestamps: %" PRIu64 "\n", nr_unordered); 1033 1034 return ret; 1035 } 1036 1037 struct script_spec { 1038 struct list_head node; 1039 struct scripting_ops *ops; 1040 char spec[0]; 1041 }; 1042 1043 static LIST_HEAD(script_specs); 1044 1045 static struct script_spec *script_spec__new(const char *spec, 1046 struct scripting_ops *ops) 1047 { 1048 struct script_spec *s = malloc(sizeof(*s) + strlen(spec) + 1); 1049 1050 if (s != NULL) { 1051 strcpy(s->spec, spec); 1052 s->ops = ops; 1053 } 1054 1055 return s; 1056 } 1057 1058 static void script_spec__add(struct script_spec *s) 1059 { 1060 list_add_tail(&s->node, &script_specs); 1061 } 1062 1063 static struct script_spec *script_spec__find(const char *spec) 1064 { 1065 struct script_spec *s; 1066 1067 list_for_each_entry(s, &script_specs, node) 1068 if (strcasecmp(s->spec, spec) == 0) 1069 return s; 1070 return NULL; 1071 } 1072 1073 static struct script_spec *script_spec__findnew(const char *spec, 1074 struct scripting_ops *ops) 1075 { 1076 struct script_spec *s = script_spec__find(spec); 1077 1078 if (s) 1079 return s; 1080 1081 s = script_spec__new(spec, ops); 1082 if (!s) 1083 return NULL; 1084 1085 script_spec__add(s); 1086 1087 return s; 1088 } 1089 1090 int script_spec_register(const char *spec, struct scripting_ops *ops) 1091 { 1092 struct script_spec *s; 1093 1094 s = script_spec__find(spec); 1095 if (s) 1096 return -1; 1097 1098 s = script_spec__findnew(spec, ops); 1099 if (!s) 1100 return -1; 1101 1102 return 0; 1103 } 1104 1105 static struct scripting_ops *script_spec__lookup(const char *spec) 1106 { 1107 struct script_spec *s = script_spec__find(spec); 1108 if (!s) 1109 return NULL; 1110 1111 return s->ops; 1112 } 1113 1114 static void list_available_languages(void) 1115 { 1116 struct script_spec *s; 1117 1118 fprintf(stderr, "\n"); 1119 fprintf(stderr, "Scripting language extensions (used in " 1120 "perf script -s [spec:]script.[spec]):\n\n"); 1121 1122 list_for_each_entry(s, &script_specs, node) 1123 fprintf(stderr, " %-42s [%s]\n", s->spec, s->ops->name); 1124 1125 fprintf(stderr, "\n"); 1126 } 1127 1128 static int parse_scriptname(const struct option *opt __maybe_unused, 1129 const char *str, int unset __maybe_unused) 1130 { 1131 char spec[PATH_MAX]; 1132 const char *script, *ext; 1133 int len; 1134 1135 if (strcmp(str, "lang") == 0) { 1136 list_available_languages(); 1137 exit(0); 1138 } 1139 1140 script = strchr(str, ':'); 1141 if (script) { 1142 len = script - str; 1143 if (len >= PATH_MAX) { 1144 fprintf(stderr, "invalid language specifier"); 1145 return -1; 1146 } 1147 strncpy(spec, str, len); 1148 spec[len] = '\0'; 1149 scripting_ops = script_spec__lookup(spec); 1150 if (!scripting_ops) { 1151 fprintf(stderr, "invalid language specifier"); 1152 return -1; 1153 } 1154 script++; 1155 } else { 1156 script = str; 1157 ext = strrchr(script, '.'); 1158 if (!ext) { 1159 fprintf(stderr, "invalid script extension"); 1160 return -1; 1161 } 1162 scripting_ops = script_spec__lookup(++ext); 1163 if (!scripting_ops) { 1164 fprintf(stderr, "invalid script extension"); 1165 return -1; 1166 } 1167 } 1168 1169 script_name = strdup(script); 1170 1171 return 0; 1172 } 1173 1174 static int parse_output_fields(const struct option *opt __maybe_unused, 1175 const char *arg, int unset __maybe_unused) 1176 { 1177 char *tok; 1178 int i, imax = ARRAY_SIZE(all_output_options); 1179 int j; 1180 int rc = 0; 1181 char *str = strdup(arg); 1182 int type = -1; 1183 1184 if (!str) 1185 return -ENOMEM; 1186 1187 /* first word can state for which event type the user is specifying 1188 * the fields. If no type exists, the specified fields apply to all 1189 * event types found in the file minus the invalid fields for a type. 1190 */ 1191 tok = strchr(str, ':'); 1192 if (tok) { 1193 *tok = '\0'; 1194 tok++; 1195 if (!strcmp(str, "hw")) 1196 type = PERF_TYPE_HARDWARE; 1197 else if (!strcmp(str, "sw")) 1198 type = PERF_TYPE_SOFTWARE; 1199 else if (!strcmp(str, "trace")) 1200 type = PERF_TYPE_TRACEPOINT; 1201 else if (!strcmp(str, "raw")) 1202 type = PERF_TYPE_RAW; 1203 else if (!strcmp(str, "break")) 1204 type = PERF_TYPE_BREAKPOINT; 1205 else { 1206 fprintf(stderr, "Invalid event type in field string.\n"); 1207 rc = -EINVAL; 1208 goto out; 1209 } 1210 1211 if (output[type].user_set) 1212 pr_warning("Overriding previous field request for %s events.\n", 1213 event_type(type)); 1214 1215 output[type].fields = 0; 1216 output[type].user_set = true; 1217 output[type].wildcard_set = false; 1218 1219 } else { 1220 tok = str; 1221 if (strlen(str) == 0) { 1222 fprintf(stderr, 1223 "Cannot set fields to 'none' for all event types.\n"); 1224 rc = -EINVAL; 1225 goto out; 1226 } 1227 1228 if (output_set_by_user()) 1229 pr_warning("Overriding previous field request for all events.\n"); 1230 1231 for (j = 0; j < PERF_TYPE_MAX; ++j) { 1232 output[j].fields = 0; 1233 output[j].user_set = true; 1234 output[j].wildcard_set = true; 1235 } 1236 } 1237 1238 for (tok = strtok(tok, ","); tok; tok = strtok(NULL, ",")) { 1239 for (i = 0; i < imax; ++i) { 1240 if (strcmp(tok, all_output_options[i].str) == 0) 1241 break; 1242 } 1243 if (i == imax && strcmp(tok, "flags") == 0) { 1244 print_flags = true; 1245 continue; 1246 } 1247 if (i == imax) { 1248 fprintf(stderr, "Invalid field requested.\n"); 1249 rc = -EINVAL; 1250 goto out; 1251 } 1252 1253 if (type == -1) { 1254 /* add user option to all events types for 1255 * which it is valid 1256 */ 1257 for (j = 0; j < PERF_TYPE_MAX; ++j) { 1258 if (output[j].invalid_fields & all_output_options[i].field) { 1259 pr_warning("\'%s\' not valid for %s events. Ignoring.\n", 1260 all_output_options[i].str, event_type(j)); 1261 } else 1262 output[j].fields |= all_output_options[i].field; 1263 } 1264 } else { 1265 if (output[type].invalid_fields & all_output_options[i].field) { 1266 fprintf(stderr, "\'%s\' not valid for %s events.\n", 1267 all_output_options[i].str, event_type(type)); 1268 1269 rc = -EINVAL; 1270 goto out; 1271 } 1272 output[type].fields |= all_output_options[i].field; 1273 } 1274 } 1275 1276 if (type >= 0) { 1277 if (output[type].fields == 0) { 1278 pr_debug("No fields requested for %s type. " 1279 "Events will not be displayed.\n", event_type(type)); 1280 } 1281 } 1282 1283 out: 1284 free(str); 1285 return rc; 1286 } 1287 1288 /* Helper function for filesystems that return a dent->d_type DT_UNKNOWN */ 1289 static int is_directory(const char *base_path, const struct dirent *dent) 1290 { 1291 char path[PATH_MAX]; 1292 struct stat st; 1293 1294 sprintf(path, "%s/%s", base_path, dent->d_name); 1295 if (stat(path, &st)) 1296 return 0; 1297 1298 return S_ISDIR(st.st_mode); 1299 } 1300 1301 #define for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next)\ 1302 while (!readdir_r(scripts_dir, &lang_dirent, &lang_next) && \ 1303 lang_next) \ 1304 if ((lang_dirent.d_type == DT_DIR || \ 1305 (lang_dirent.d_type == DT_UNKNOWN && \ 1306 is_directory(scripts_path, &lang_dirent))) && \ 1307 (strcmp(lang_dirent.d_name, ".")) && \ 1308 (strcmp(lang_dirent.d_name, ".."))) 1309 1310 #define for_each_script(lang_path, lang_dir, script_dirent, script_next)\ 1311 while (!readdir_r(lang_dir, &script_dirent, &script_next) && \ 1312 script_next) \ 1313 if (script_dirent.d_type != DT_DIR && \ 1314 (script_dirent.d_type != DT_UNKNOWN || \ 1315 !is_directory(lang_path, &script_dirent))) 1316 1317 1318 #define RECORD_SUFFIX "-record" 1319 #define REPORT_SUFFIX "-report" 1320 1321 struct script_desc { 1322 struct list_head node; 1323 char *name; 1324 char *half_liner; 1325 char *args; 1326 }; 1327 1328 static LIST_HEAD(script_descs); 1329 1330 static struct script_desc *script_desc__new(const char *name) 1331 { 1332 struct script_desc *s = zalloc(sizeof(*s)); 1333 1334 if (s != NULL && name) 1335 s->name = strdup(name); 1336 1337 return s; 1338 } 1339 1340 static void script_desc__delete(struct script_desc *s) 1341 { 1342 zfree(&s->name); 1343 zfree(&s->half_liner); 1344 zfree(&s->args); 1345 free(s); 1346 } 1347 1348 static void script_desc__add(struct script_desc *s) 1349 { 1350 list_add_tail(&s->node, &script_descs); 1351 } 1352 1353 static struct script_desc *script_desc__find(const char *name) 1354 { 1355 struct script_desc *s; 1356 1357 list_for_each_entry(s, &script_descs, node) 1358 if (strcasecmp(s->name, name) == 0) 1359 return s; 1360 return NULL; 1361 } 1362 1363 static struct script_desc *script_desc__findnew(const char *name) 1364 { 1365 struct script_desc *s = script_desc__find(name); 1366 1367 if (s) 1368 return s; 1369 1370 s = script_desc__new(name); 1371 if (!s) 1372 goto out_delete_desc; 1373 1374 script_desc__add(s); 1375 1376 return s; 1377 1378 out_delete_desc: 1379 script_desc__delete(s); 1380 1381 return NULL; 1382 } 1383 1384 static const char *ends_with(const char *str, const char *suffix) 1385 { 1386 size_t suffix_len = strlen(suffix); 1387 const char *p = str; 1388 1389 if (strlen(str) > suffix_len) { 1390 p = str + strlen(str) - suffix_len; 1391 if (!strncmp(p, suffix, suffix_len)) 1392 return p; 1393 } 1394 1395 return NULL; 1396 } 1397 1398 static int read_script_info(struct script_desc *desc, const char *filename) 1399 { 1400 char line[BUFSIZ], *p; 1401 FILE *fp; 1402 1403 fp = fopen(filename, "r"); 1404 if (!fp) 1405 return -1; 1406 1407 while (fgets(line, sizeof(line), fp)) { 1408 p = ltrim(line); 1409 if (strlen(p) == 0) 1410 continue; 1411 if (*p != '#') 1412 continue; 1413 p++; 1414 if (strlen(p) && *p == '!') 1415 continue; 1416 1417 p = ltrim(p); 1418 if (strlen(p) && p[strlen(p) - 1] == '\n') 1419 p[strlen(p) - 1] = '\0'; 1420 1421 if (!strncmp(p, "description:", strlen("description:"))) { 1422 p += strlen("description:"); 1423 desc->half_liner = strdup(ltrim(p)); 1424 continue; 1425 } 1426 1427 if (!strncmp(p, "args:", strlen("args:"))) { 1428 p += strlen("args:"); 1429 desc->args = strdup(ltrim(p)); 1430 continue; 1431 } 1432 } 1433 1434 fclose(fp); 1435 1436 return 0; 1437 } 1438 1439 static char *get_script_root(struct dirent *script_dirent, const char *suffix) 1440 { 1441 char *script_root, *str; 1442 1443 script_root = strdup(script_dirent->d_name); 1444 if (!script_root) 1445 return NULL; 1446 1447 str = (char *)ends_with(script_root, suffix); 1448 if (!str) { 1449 free(script_root); 1450 return NULL; 1451 } 1452 1453 *str = '\0'; 1454 return script_root; 1455 } 1456 1457 static int list_available_scripts(const struct option *opt __maybe_unused, 1458 const char *s __maybe_unused, 1459 int unset __maybe_unused) 1460 { 1461 struct dirent *script_next, *lang_next, script_dirent, lang_dirent; 1462 char scripts_path[MAXPATHLEN]; 1463 DIR *scripts_dir, *lang_dir; 1464 char script_path[MAXPATHLEN]; 1465 char lang_path[MAXPATHLEN]; 1466 struct script_desc *desc; 1467 char first_half[BUFSIZ]; 1468 char *script_root; 1469 1470 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path()); 1471 1472 scripts_dir = opendir(scripts_path); 1473 if (!scripts_dir) 1474 return -1; 1475 1476 for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) { 1477 snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path, 1478 lang_dirent.d_name); 1479 lang_dir = opendir(lang_path); 1480 if (!lang_dir) 1481 continue; 1482 1483 for_each_script(lang_path, lang_dir, script_dirent, script_next) { 1484 script_root = get_script_root(&script_dirent, REPORT_SUFFIX); 1485 if (script_root) { 1486 desc = script_desc__findnew(script_root); 1487 snprintf(script_path, MAXPATHLEN, "%s/%s", 1488 lang_path, script_dirent.d_name); 1489 read_script_info(desc, script_path); 1490 free(script_root); 1491 } 1492 } 1493 } 1494 1495 fprintf(stdout, "List of available trace scripts:\n"); 1496 list_for_each_entry(desc, &script_descs, node) { 1497 sprintf(first_half, "%s %s", desc->name, 1498 desc->args ? desc->args : ""); 1499 fprintf(stdout, " %-36s %s\n", first_half, 1500 desc->half_liner ? desc->half_liner : ""); 1501 } 1502 1503 exit(0); 1504 } 1505 1506 /* 1507 * Some scripts specify the required events in their "xxx-record" file, 1508 * this function will check if the events in perf.data match those 1509 * mentioned in the "xxx-record". 1510 * 1511 * Fixme: All existing "xxx-record" are all in good formats "-e event ", 1512 * which is covered well now. And new parsing code should be added to 1513 * cover the future complexing formats like event groups etc. 1514 */ 1515 static int check_ev_match(char *dir_name, char *scriptname, 1516 struct perf_session *session) 1517 { 1518 char filename[MAXPATHLEN], evname[128]; 1519 char line[BUFSIZ], *p; 1520 struct perf_evsel *pos; 1521 int match, len; 1522 FILE *fp; 1523 1524 sprintf(filename, "%s/bin/%s-record", dir_name, scriptname); 1525 1526 fp = fopen(filename, "r"); 1527 if (!fp) 1528 return -1; 1529 1530 while (fgets(line, sizeof(line), fp)) { 1531 p = ltrim(line); 1532 if (*p == '#') 1533 continue; 1534 1535 while (strlen(p)) { 1536 p = strstr(p, "-e"); 1537 if (!p) 1538 break; 1539 1540 p += 2; 1541 p = ltrim(p); 1542 len = strcspn(p, " \t"); 1543 if (!len) 1544 break; 1545 1546 snprintf(evname, len + 1, "%s", p); 1547 1548 match = 0; 1549 evlist__for_each(session->evlist, pos) { 1550 if (!strcmp(perf_evsel__name(pos), evname)) { 1551 match = 1; 1552 break; 1553 } 1554 } 1555 1556 if (!match) { 1557 fclose(fp); 1558 return -1; 1559 } 1560 } 1561 } 1562 1563 fclose(fp); 1564 return 0; 1565 } 1566 1567 /* 1568 * Return -1 if none is found, otherwise the actual scripts number. 1569 * 1570 * Currently the only user of this function is the script browser, which 1571 * will list all statically runnable scripts, select one, execute it and 1572 * show the output in a perf browser. 1573 */ 1574 int find_scripts(char **scripts_array, char **scripts_path_array) 1575 { 1576 struct dirent *script_next, *lang_next, script_dirent, lang_dirent; 1577 char scripts_path[MAXPATHLEN], lang_path[MAXPATHLEN]; 1578 DIR *scripts_dir, *lang_dir; 1579 struct perf_session *session; 1580 struct perf_data_file file = { 1581 .path = input_name, 1582 .mode = PERF_DATA_MODE_READ, 1583 }; 1584 char *temp; 1585 int i = 0; 1586 1587 session = perf_session__new(&file, false, NULL); 1588 if (!session) 1589 return -1; 1590 1591 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path()); 1592 1593 scripts_dir = opendir(scripts_path); 1594 if (!scripts_dir) { 1595 perf_session__delete(session); 1596 return -1; 1597 } 1598 1599 for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) { 1600 snprintf(lang_path, MAXPATHLEN, "%s/%s", scripts_path, 1601 lang_dirent.d_name); 1602 #ifdef NO_LIBPERL 1603 if (strstr(lang_path, "perl")) 1604 continue; 1605 #endif 1606 #ifdef NO_LIBPYTHON 1607 if (strstr(lang_path, "python")) 1608 continue; 1609 #endif 1610 1611 lang_dir = opendir(lang_path); 1612 if (!lang_dir) 1613 continue; 1614 1615 for_each_script(lang_path, lang_dir, script_dirent, script_next) { 1616 /* Skip those real time scripts: xxxtop.p[yl] */ 1617 if (strstr(script_dirent.d_name, "top.")) 1618 continue; 1619 sprintf(scripts_path_array[i], "%s/%s", lang_path, 1620 script_dirent.d_name); 1621 temp = strchr(script_dirent.d_name, '.'); 1622 snprintf(scripts_array[i], 1623 (temp - script_dirent.d_name) + 1, 1624 "%s", script_dirent.d_name); 1625 1626 if (check_ev_match(lang_path, 1627 scripts_array[i], session)) 1628 continue; 1629 1630 i++; 1631 } 1632 closedir(lang_dir); 1633 } 1634 1635 closedir(scripts_dir); 1636 perf_session__delete(session); 1637 return i; 1638 } 1639 1640 static char *get_script_path(const char *script_root, const char *suffix) 1641 { 1642 struct dirent *script_next, *lang_next, script_dirent, lang_dirent; 1643 char scripts_path[MAXPATHLEN]; 1644 char script_path[MAXPATHLEN]; 1645 DIR *scripts_dir, *lang_dir; 1646 char lang_path[MAXPATHLEN]; 1647 char *__script_root; 1648 1649 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path()); 1650 1651 scripts_dir = opendir(scripts_path); 1652 if (!scripts_dir) 1653 return NULL; 1654 1655 for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) { 1656 snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path, 1657 lang_dirent.d_name); 1658 lang_dir = opendir(lang_path); 1659 if (!lang_dir) 1660 continue; 1661 1662 for_each_script(lang_path, lang_dir, script_dirent, script_next) { 1663 __script_root = get_script_root(&script_dirent, suffix); 1664 if (__script_root && !strcmp(script_root, __script_root)) { 1665 free(__script_root); 1666 closedir(lang_dir); 1667 closedir(scripts_dir); 1668 snprintf(script_path, MAXPATHLEN, "%s/%s", 1669 lang_path, script_dirent.d_name); 1670 return strdup(script_path); 1671 } 1672 free(__script_root); 1673 } 1674 closedir(lang_dir); 1675 } 1676 closedir(scripts_dir); 1677 1678 return NULL; 1679 } 1680 1681 static bool is_top_script(const char *script_path) 1682 { 1683 return ends_with(script_path, "top") == NULL ? false : true; 1684 } 1685 1686 static int has_required_arg(char *script_path) 1687 { 1688 struct script_desc *desc; 1689 int n_args = 0; 1690 char *p; 1691 1692 desc = script_desc__new(NULL); 1693 1694 if (read_script_info(desc, script_path)) 1695 goto out; 1696 1697 if (!desc->args) 1698 goto out; 1699 1700 for (p = desc->args; *p; p++) 1701 if (*p == '<') 1702 n_args++; 1703 out: 1704 script_desc__delete(desc); 1705 1706 return n_args; 1707 } 1708 1709 static int have_cmd(int argc, const char **argv) 1710 { 1711 char **__argv = malloc(sizeof(const char *) * argc); 1712 1713 if (!__argv) { 1714 pr_err("malloc failed\n"); 1715 return -1; 1716 } 1717 1718 memcpy(__argv, argv, sizeof(const char *) * argc); 1719 argc = parse_options(argc, (const char **)__argv, record_options, 1720 NULL, PARSE_OPT_STOP_AT_NON_OPTION); 1721 free(__argv); 1722 1723 system_wide = (argc == 0); 1724 1725 return 0; 1726 } 1727 1728 static void script__setup_sample_type(struct perf_script *script) 1729 { 1730 struct perf_session *session = script->session; 1731 u64 sample_type = perf_evlist__combined_sample_type(session->evlist); 1732 1733 if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain) { 1734 if ((sample_type & PERF_SAMPLE_REGS_USER) && 1735 (sample_type & PERF_SAMPLE_STACK_USER)) 1736 callchain_param.record_mode = CALLCHAIN_DWARF; 1737 else if (sample_type & PERF_SAMPLE_BRANCH_STACK) 1738 callchain_param.record_mode = CALLCHAIN_LBR; 1739 else 1740 callchain_param.record_mode = CALLCHAIN_FP; 1741 } 1742 } 1743 1744 static int process_stat_round_event(struct perf_tool *tool __maybe_unused, 1745 union perf_event *event, 1746 struct perf_session *session) 1747 { 1748 struct stat_round_event *round = &event->stat_round; 1749 struct perf_evsel *counter; 1750 1751 evlist__for_each(session->evlist, counter) { 1752 perf_stat_process_counter(&stat_config, counter); 1753 process_stat(counter, round->time); 1754 } 1755 1756 process_stat_interval(round->time); 1757 return 0; 1758 } 1759 1760 static int process_stat_config_event(struct perf_tool *tool __maybe_unused, 1761 union perf_event *event, 1762 struct perf_session *session __maybe_unused) 1763 { 1764 perf_event__read_stat_config(&stat_config, &event->stat_config); 1765 return 0; 1766 } 1767 1768 static int set_maps(struct perf_script *script) 1769 { 1770 struct perf_evlist *evlist = script->session->evlist; 1771 1772 if (!script->cpus || !script->threads) 1773 return 0; 1774 1775 if (WARN_ONCE(script->allocated, "stats double allocation\n")) 1776 return -EINVAL; 1777 1778 perf_evlist__set_maps(evlist, script->cpus, script->threads); 1779 1780 if (perf_evlist__alloc_stats(evlist, true)) 1781 return -ENOMEM; 1782 1783 script->allocated = true; 1784 return 0; 1785 } 1786 1787 static 1788 int process_thread_map_event(struct perf_tool *tool, 1789 union perf_event *event, 1790 struct perf_session *session __maybe_unused) 1791 { 1792 struct perf_script *script = container_of(tool, struct perf_script, tool); 1793 1794 if (script->threads) { 1795 pr_warning("Extra thread map event, ignoring.\n"); 1796 return 0; 1797 } 1798 1799 script->threads = thread_map__new_event(&event->thread_map); 1800 if (!script->threads) 1801 return -ENOMEM; 1802 1803 return set_maps(script); 1804 } 1805 1806 static 1807 int process_cpu_map_event(struct perf_tool *tool __maybe_unused, 1808 union perf_event *event, 1809 struct perf_session *session __maybe_unused) 1810 { 1811 struct perf_script *script = container_of(tool, struct perf_script, tool); 1812 1813 if (script->cpus) { 1814 pr_warning("Extra cpu map event, ignoring.\n"); 1815 return 0; 1816 } 1817 1818 script->cpus = cpu_map__new_data(&event->cpu_map.data); 1819 if (!script->cpus) 1820 return -ENOMEM; 1821 1822 return set_maps(script); 1823 } 1824 1825 int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) 1826 { 1827 bool show_full_info = false; 1828 bool header = false; 1829 bool header_only = false; 1830 bool script_started = false; 1831 char *rec_script_path = NULL; 1832 char *rep_script_path = NULL; 1833 struct perf_session *session; 1834 struct itrace_synth_opts itrace_synth_opts = { .set = false, }; 1835 char *script_path = NULL; 1836 const char **__argv; 1837 int i, j, err = 0; 1838 struct perf_script script = { 1839 .tool = { 1840 .sample = process_sample_event, 1841 .mmap = perf_event__process_mmap, 1842 .mmap2 = perf_event__process_mmap2, 1843 .comm = perf_event__process_comm, 1844 .exit = perf_event__process_exit, 1845 .fork = perf_event__process_fork, 1846 .attr = process_attr, 1847 .tracing_data = perf_event__process_tracing_data, 1848 .build_id = perf_event__process_build_id, 1849 .id_index = perf_event__process_id_index, 1850 .auxtrace_info = perf_event__process_auxtrace_info, 1851 .auxtrace = perf_event__process_auxtrace, 1852 .auxtrace_error = perf_event__process_auxtrace_error, 1853 .stat = perf_event__process_stat_event, 1854 .stat_round = process_stat_round_event, 1855 .stat_config = process_stat_config_event, 1856 .thread_map = process_thread_map_event, 1857 .cpu_map = process_cpu_map_event, 1858 .ordered_events = true, 1859 .ordering_requires_timestamps = true, 1860 }, 1861 }; 1862 struct perf_data_file file = { 1863 .mode = PERF_DATA_MODE_READ, 1864 }; 1865 const struct option options[] = { 1866 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, 1867 "dump raw trace in ASCII"), 1868 OPT_INCR('v', "verbose", &verbose, 1869 "be more verbose (show symbol address, etc)"), 1870 OPT_BOOLEAN('L', "Latency", &latency_format, 1871 "show latency attributes (irqs/preemption disabled, etc)"), 1872 OPT_CALLBACK_NOOPT('l', "list", NULL, NULL, "list available scripts", 1873 list_available_scripts), 1874 OPT_CALLBACK('s', "script", NULL, "name", 1875 "script file name (lang:script name, script name, or *)", 1876 parse_scriptname), 1877 OPT_STRING('g', "gen-script", &generate_script_lang, "lang", 1878 "generate perf-script.xx script in specified language"), 1879 OPT_STRING('i', "input", &input_name, "file", "input file name"), 1880 OPT_BOOLEAN('d', "debug-mode", &debug_mode, 1881 "do various checks like samples ordering and lost events"), 1882 OPT_BOOLEAN(0, "header", &header, "Show data header."), 1883 OPT_BOOLEAN(0, "header-only", &header_only, "Show only data header."), 1884 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, 1885 "file", "vmlinux pathname"), 1886 OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, 1887 "file", "kallsyms pathname"), 1888 OPT_BOOLEAN('G', "hide-call-graph", &no_callchain, 1889 "When printing symbols do not display call chain"), 1890 OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", 1891 "Look for files with symbols relative to this directory"), 1892 OPT_CALLBACK('F', "fields", NULL, "str", 1893 "comma separated output fields prepend with 'type:'. " 1894 "Valid types: hw,sw,trace,raw. " 1895 "Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso," 1896 "addr,symoff,period,iregs,brstack,brstacksym,flags", parse_output_fields), 1897 OPT_BOOLEAN('a', "all-cpus", &system_wide, 1898 "system-wide collection from all CPUs"), 1899 OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", 1900 "only consider these symbols"), 1901 OPT_STRING('C', "cpu", &cpu_list, "cpu", "list of cpus to profile"), 1902 OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", 1903 "only display events for these comms"), 1904 OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]", 1905 "only consider symbols in these pids"), 1906 OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]", 1907 "only consider symbols in these tids"), 1908 OPT_BOOLEAN('I', "show-info", &show_full_info, 1909 "display extended information from perf.data file"), 1910 OPT_BOOLEAN('\0', "show-kernel-path", &symbol_conf.show_kernel_path, 1911 "Show the path of [kernel.kallsyms]"), 1912 OPT_BOOLEAN('\0', "show-task-events", &script.show_task_events, 1913 "Show the fork/comm/exit events"), 1914 OPT_BOOLEAN('\0', "show-mmap-events", &script.show_mmap_events, 1915 "Show the mmap events"), 1916 OPT_BOOLEAN('\0', "show-switch-events", &script.show_switch_events, 1917 "Show context switch events (if recorded)"), 1918 OPT_BOOLEAN('f', "force", &file.force, "don't complain, do it"), 1919 OPT_BOOLEAN(0, "ns", &nanosecs, 1920 "Use 9 decimal places when displaying time"), 1921 OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts", 1922 "Instruction Tracing options", 1923 itrace_parse_synth_opts), 1924 OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename, 1925 "Show full source file name path for source lines"), 1926 OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle, 1927 "Enable symbol demangling"), 1928 OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, 1929 "Enable kernel symbol demangling"), 1930 1931 OPT_END() 1932 }; 1933 const char * const script_subcommands[] = { "record", "report", NULL }; 1934 const char *script_usage[] = { 1935 "perf script [<options>]", 1936 "perf script [<options>] record <script> [<record-options>] <command>", 1937 "perf script [<options>] report <script> [script-args]", 1938 "perf script [<options>] <script> [<record-options>] <command>", 1939 "perf script [<options>] <top-script> [script-args]", 1940 NULL 1941 }; 1942 1943 setup_scripting(); 1944 1945 argc = parse_options_subcommand(argc, argv, options, script_subcommands, script_usage, 1946 PARSE_OPT_STOP_AT_NON_OPTION); 1947 1948 file.path = input_name; 1949 1950 if (argc > 1 && !strncmp(argv[0], "rec", strlen("rec"))) { 1951 rec_script_path = get_script_path(argv[1], RECORD_SUFFIX); 1952 if (!rec_script_path) 1953 return cmd_record(argc, argv, NULL); 1954 } 1955 1956 if (argc > 1 && !strncmp(argv[0], "rep", strlen("rep"))) { 1957 rep_script_path = get_script_path(argv[1], REPORT_SUFFIX); 1958 if (!rep_script_path) { 1959 fprintf(stderr, 1960 "Please specify a valid report script" 1961 "(see 'perf script -l' for listing)\n"); 1962 return -1; 1963 } 1964 } 1965 1966 if (itrace_synth_opts.callchain && 1967 itrace_synth_opts.callchain_sz > scripting_max_stack) 1968 scripting_max_stack = itrace_synth_opts.callchain_sz; 1969 1970 /* make sure PERF_EXEC_PATH is set for scripts */ 1971 set_argv_exec_path(get_argv_exec_path()); 1972 1973 if (argc && !script_name && !rec_script_path && !rep_script_path) { 1974 int live_pipe[2]; 1975 int rep_args; 1976 pid_t pid; 1977 1978 rec_script_path = get_script_path(argv[0], RECORD_SUFFIX); 1979 rep_script_path = get_script_path(argv[0], REPORT_SUFFIX); 1980 1981 if (!rec_script_path && !rep_script_path) { 1982 usage_with_options_msg(script_usage, options, 1983 "Couldn't find script `%s'\n\n See perf" 1984 " script -l for available scripts.\n", argv[0]); 1985 } 1986 1987 if (is_top_script(argv[0])) { 1988 rep_args = argc - 1; 1989 } else { 1990 int rec_args; 1991 1992 rep_args = has_required_arg(rep_script_path); 1993 rec_args = (argc - 1) - rep_args; 1994 if (rec_args < 0) { 1995 usage_with_options_msg(script_usage, options, 1996 "`%s' script requires options." 1997 "\n\n See perf script -l for available " 1998 "scripts and options.\n", argv[0]); 1999 } 2000 } 2001 2002 if (pipe(live_pipe) < 0) { 2003 perror("failed to create pipe"); 2004 return -1; 2005 } 2006 2007 pid = fork(); 2008 if (pid < 0) { 2009 perror("failed to fork"); 2010 return -1; 2011 } 2012 2013 if (!pid) { 2014 j = 0; 2015 2016 dup2(live_pipe[1], 1); 2017 close(live_pipe[0]); 2018 2019 if (is_top_script(argv[0])) { 2020 system_wide = true; 2021 } else if (!system_wide) { 2022 if (have_cmd(argc - rep_args, &argv[rep_args]) != 0) { 2023 err = -1; 2024 goto out; 2025 } 2026 } 2027 2028 __argv = malloc((argc + 6) * sizeof(const char *)); 2029 if (!__argv) { 2030 pr_err("malloc failed\n"); 2031 err = -ENOMEM; 2032 goto out; 2033 } 2034 2035 __argv[j++] = "/bin/sh"; 2036 __argv[j++] = rec_script_path; 2037 if (system_wide) 2038 __argv[j++] = "-a"; 2039 __argv[j++] = "-q"; 2040 __argv[j++] = "-o"; 2041 __argv[j++] = "-"; 2042 for (i = rep_args + 1; i < argc; i++) 2043 __argv[j++] = argv[i]; 2044 __argv[j++] = NULL; 2045 2046 execvp("/bin/sh", (char **)__argv); 2047 free(__argv); 2048 exit(-1); 2049 } 2050 2051 dup2(live_pipe[0], 0); 2052 close(live_pipe[1]); 2053 2054 __argv = malloc((argc + 4) * sizeof(const char *)); 2055 if (!__argv) { 2056 pr_err("malloc failed\n"); 2057 err = -ENOMEM; 2058 goto out; 2059 } 2060 2061 j = 0; 2062 __argv[j++] = "/bin/sh"; 2063 __argv[j++] = rep_script_path; 2064 for (i = 1; i < rep_args + 1; i++) 2065 __argv[j++] = argv[i]; 2066 __argv[j++] = "-i"; 2067 __argv[j++] = "-"; 2068 __argv[j++] = NULL; 2069 2070 execvp("/bin/sh", (char **)__argv); 2071 free(__argv); 2072 exit(-1); 2073 } 2074 2075 if (rec_script_path) 2076 script_path = rec_script_path; 2077 if (rep_script_path) 2078 script_path = rep_script_path; 2079 2080 if (script_path) { 2081 j = 0; 2082 2083 if (!rec_script_path) 2084 system_wide = false; 2085 else if (!system_wide) { 2086 if (have_cmd(argc - 1, &argv[1]) != 0) { 2087 err = -1; 2088 goto out; 2089 } 2090 } 2091 2092 __argv = malloc((argc + 2) * sizeof(const char *)); 2093 if (!__argv) { 2094 pr_err("malloc failed\n"); 2095 err = -ENOMEM; 2096 goto out; 2097 } 2098 2099 __argv[j++] = "/bin/sh"; 2100 __argv[j++] = script_path; 2101 if (system_wide) 2102 __argv[j++] = "-a"; 2103 for (i = 2; i < argc; i++) 2104 __argv[j++] = argv[i]; 2105 __argv[j++] = NULL; 2106 2107 execvp("/bin/sh", (char **)__argv); 2108 free(__argv); 2109 exit(-1); 2110 } 2111 2112 if (!script_name) 2113 setup_pager(); 2114 2115 session = perf_session__new(&file, false, &script.tool); 2116 if (session == NULL) 2117 return -1; 2118 2119 if (header || header_only) { 2120 perf_session__fprintf_info(session, stdout, show_full_info); 2121 if (header_only) 2122 goto out_delete; 2123 } 2124 2125 if (symbol__init(&session->header.env) < 0) 2126 goto out_delete; 2127 2128 script.session = session; 2129 script__setup_sample_type(&script); 2130 2131 session->itrace_synth_opts = &itrace_synth_opts; 2132 2133 if (cpu_list) { 2134 err = perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap); 2135 if (err < 0) 2136 goto out_delete; 2137 } 2138 2139 if (!no_callchain) 2140 symbol_conf.use_callchain = true; 2141 else 2142 symbol_conf.use_callchain = false; 2143 2144 if (session->tevent.pevent && 2145 pevent_set_function_resolver(session->tevent.pevent, 2146 machine__resolve_kernel_addr, 2147 &session->machines.host) < 0) { 2148 pr_err("%s: failed to set libtraceevent function resolver\n", __func__); 2149 return -1; 2150 } 2151 2152 if (generate_script_lang) { 2153 struct stat perf_stat; 2154 int input; 2155 2156 if (output_set_by_user()) { 2157 fprintf(stderr, 2158 "custom fields not supported for generated scripts"); 2159 err = -EINVAL; 2160 goto out_delete; 2161 } 2162 2163 input = open(file.path, O_RDONLY); /* input_name */ 2164 if (input < 0) { 2165 err = -errno; 2166 perror("failed to open file"); 2167 goto out_delete; 2168 } 2169 2170 err = fstat(input, &perf_stat); 2171 if (err < 0) { 2172 perror("failed to stat file"); 2173 goto out_delete; 2174 } 2175 2176 if (!perf_stat.st_size) { 2177 fprintf(stderr, "zero-sized file, nothing to do!\n"); 2178 goto out_delete; 2179 } 2180 2181 scripting_ops = script_spec__lookup(generate_script_lang); 2182 if (!scripting_ops) { 2183 fprintf(stderr, "invalid language specifier"); 2184 err = -ENOENT; 2185 goto out_delete; 2186 } 2187 2188 err = scripting_ops->generate_script(session->tevent.pevent, 2189 "perf-script"); 2190 goto out_delete; 2191 } 2192 2193 if (script_name) { 2194 err = scripting_ops->start_script(script_name, argc, argv); 2195 if (err) 2196 goto out_delete; 2197 pr_debug("perf script started with script %s\n\n", script_name); 2198 script_started = true; 2199 } 2200 2201 2202 err = perf_session__check_output_opt(session); 2203 if (err < 0) 2204 goto out_delete; 2205 2206 err = __cmd_script(&script); 2207 2208 flush_scripting(); 2209 2210 out_delete: 2211 perf_evlist__free_stats(session->evlist); 2212 perf_session__delete(session); 2213 2214 if (script_started) 2215 cleanup_scripting(); 2216 out: 2217 return err; 2218 } 2219