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 int name_width; 621 }; 622 623 static int perf_evlist__max_name_len(struct perf_evlist *evlist) 624 { 625 struct perf_evsel *evsel; 626 int max = 0; 627 628 evlist__for_each(evlist, evsel) { 629 int len = strlen(perf_evsel__name(evsel)); 630 631 max = MAX(len, max); 632 } 633 634 return max; 635 } 636 637 static void process_event(struct perf_script *script, union perf_event *event, 638 struct perf_sample *sample, struct perf_evsel *evsel, 639 struct addr_location *al) 640 { 641 struct thread *thread = al->thread; 642 struct perf_event_attr *attr = &evsel->attr; 643 644 if (output[attr->type].fields == 0) 645 return; 646 647 print_sample_start(sample, thread, evsel); 648 649 if (PRINT_FIELD(PERIOD)) 650 printf("%10" PRIu64 " ", sample->period); 651 652 if (PRINT_FIELD(EVNAME)) { 653 const char *evname = perf_evsel__name(evsel); 654 655 if (!script->name_width) 656 script->name_width = perf_evlist__max_name_len(script->session->evlist); 657 658 printf("%*s: ", script->name_width, 659 evname ? evname : "[unknown]"); 660 } 661 662 if (print_flags) 663 print_sample_flags(sample->flags); 664 665 if (is_bts_event(attr)) { 666 print_sample_bts(event, sample, evsel, thread, al); 667 return; 668 } 669 670 if (PRINT_FIELD(TRACE)) 671 event_format__print(evsel->tp_format, sample->cpu, 672 sample->raw_data, sample->raw_size); 673 if (PRINT_FIELD(ADDR)) 674 print_sample_addr(event, sample, thread, attr); 675 676 if (PRINT_FIELD(IP)) { 677 if (!symbol_conf.use_callchain) 678 printf(" "); 679 else 680 printf("\n"); 681 682 perf_evsel__print_ip(evsel, sample, al, 683 output[attr->type].print_ip_opts, 684 scripting_max_stack); 685 } 686 687 if (PRINT_FIELD(IREGS)) 688 print_sample_iregs(event, sample, thread, attr); 689 690 if (PRINT_FIELD(BRSTACK)) 691 print_sample_brstack(event, sample, thread, attr); 692 else if (PRINT_FIELD(BRSTACKSYM)) 693 print_sample_brstacksym(event, sample, thread, attr); 694 695 printf("\n"); 696 } 697 698 static struct scripting_ops *scripting_ops; 699 700 static void __process_stat(struct perf_evsel *counter, u64 tstamp) 701 { 702 int nthreads = thread_map__nr(counter->threads); 703 int ncpus = perf_evsel__nr_cpus(counter); 704 int cpu, thread; 705 static int header_printed; 706 707 if (counter->system_wide) 708 nthreads = 1; 709 710 if (!header_printed) { 711 printf("%3s %8s %15s %15s %15s %15s %s\n", 712 "CPU", "THREAD", "VAL", "ENA", "RUN", "TIME", "EVENT"); 713 header_printed = 1; 714 } 715 716 for (thread = 0; thread < nthreads; thread++) { 717 for (cpu = 0; cpu < ncpus; cpu++) { 718 struct perf_counts_values *counts; 719 720 counts = perf_counts(counter->counts, cpu, thread); 721 722 printf("%3d %8d %15" PRIu64 " %15" PRIu64 " %15" PRIu64 " %15" PRIu64 " %s\n", 723 counter->cpus->map[cpu], 724 thread_map__pid(counter->threads, thread), 725 counts->val, 726 counts->ena, 727 counts->run, 728 tstamp, 729 perf_evsel__name(counter)); 730 } 731 } 732 } 733 734 static void process_stat(struct perf_evsel *counter, u64 tstamp) 735 { 736 if (scripting_ops && scripting_ops->process_stat) 737 scripting_ops->process_stat(&stat_config, counter, tstamp); 738 else 739 __process_stat(counter, tstamp); 740 } 741 742 static void process_stat_interval(u64 tstamp) 743 { 744 if (scripting_ops && scripting_ops->process_stat_interval) 745 scripting_ops->process_stat_interval(tstamp); 746 } 747 748 static void setup_scripting(void) 749 { 750 setup_perl_scripting(); 751 setup_python_scripting(); 752 } 753 754 static int flush_scripting(void) 755 { 756 return scripting_ops ? scripting_ops->flush_script() : 0; 757 } 758 759 static int cleanup_scripting(void) 760 { 761 pr_debug("\nperf script stopped\n"); 762 763 return scripting_ops ? scripting_ops->stop_script() : 0; 764 } 765 766 static int process_sample_event(struct perf_tool *tool, 767 union perf_event *event, 768 struct perf_sample *sample, 769 struct perf_evsel *evsel, 770 struct machine *machine) 771 { 772 struct perf_script *scr = container_of(tool, struct perf_script, tool); 773 struct addr_location al; 774 775 if (debug_mode) { 776 if (sample->time < last_timestamp) { 777 pr_err("Samples misordered, previous: %" PRIu64 778 " this: %" PRIu64 "\n", last_timestamp, 779 sample->time); 780 nr_unordered++; 781 } 782 last_timestamp = sample->time; 783 return 0; 784 } 785 786 if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) { 787 pr_err("problem processing %d event, skipping it.\n", 788 event->header.type); 789 return -1; 790 } 791 792 if (al.filtered) 793 goto out_put; 794 795 if (cpu_list && !test_bit(sample->cpu, cpu_bitmap)) 796 goto out_put; 797 798 if (scripting_ops) 799 scripting_ops->process_event(event, sample, evsel, &al); 800 else 801 process_event(scr, event, sample, evsel, &al); 802 803 out_put: 804 addr_location__put(&al); 805 return 0; 806 } 807 808 static int process_attr(struct perf_tool *tool, union perf_event *event, 809 struct perf_evlist **pevlist) 810 { 811 struct perf_script *scr = container_of(tool, struct perf_script, tool); 812 struct perf_evlist *evlist; 813 struct perf_evsel *evsel, *pos; 814 int err; 815 816 err = perf_event__process_attr(tool, event, pevlist); 817 if (err) 818 return err; 819 820 evlist = *pevlist; 821 evsel = perf_evlist__last(*pevlist); 822 823 if (evsel->attr.type >= PERF_TYPE_MAX) 824 return 0; 825 826 evlist__for_each(evlist, pos) { 827 if (pos->attr.type == evsel->attr.type && pos != evsel) 828 return 0; 829 } 830 831 set_print_ip_opts(&evsel->attr); 832 833 if (evsel->attr.sample_type) 834 err = perf_evsel__check_attr(evsel, scr->session); 835 836 return err; 837 } 838 839 static int process_comm_event(struct perf_tool *tool, 840 union perf_event *event, 841 struct perf_sample *sample, 842 struct machine *machine) 843 { 844 struct thread *thread; 845 struct perf_script *script = container_of(tool, struct perf_script, tool); 846 struct perf_session *session = script->session; 847 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id); 848 int ret = -1; 849 850 thread = machine__findnew_thread(machine, event->comm.pid, event->comm.tid); 851 if (thread == NULL) { 852 pr_debug("problem processing COMM event, skipping it.\n"); 853 return -1; 854 } 855 856 if (perf_event__process_comm(tool, event, sample, machine) < 0) 857 goto out; 858 859 if (!evsel->attr.sample_id_all) { 860 sample->cpu = 0; 861 sample->time = 0; 862 sample->tid = event->comm.tid; 863 sample->pid = event->comm.pid; 864 } 865 print_sample_start(sample, thread, evsel); 866 perf_event__fprintf(event, stdout); 867 ret = 0; 868 out: 869 thread__put(thread); 870 return ret; 871 } 872 873 static int process_fork_event(struct perf_tool *tool, 874 union perf_event *event, 875 struct perf_sample *sample, 876 struct machine *machine) 877 { 878 struct thread *thread; 879 struct perf_script *script = container_of(tool, struct perf_script, tool); 880 struct perf_session *session = script->session; 881 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id); 882 883 if (perf_event__process_fork(tool, event, sample, machine) < 0) 884 return -1; 885 886 thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid); 887 if (thread == NULL) { 888 pr_debug("problem processing FORK event, skipping it.\n"); 889 return -1; 890 } 891 892 if (!evsel->attr.sample_id_all) { 893 sample->cpu = 0; 894 sample->time = event->fork.time; 895 sample->tid = event->fork.tid; 896 sample->pid = event->fork.pid; 897 } 898 print_sample_start(sample, thread, evsel); 899 perf_event__fprintf(event, stdout); 900 thread__put(thread); 901 902 return 0; 903 } 904 static int process_exit_event(struct perf_tool *tool, 905 union perf_event *event, 906 struct perf_sample *sample, 907 struct machine *machine) 908 { 909 int err = 0; 910 struct thread *thread; 911 struct perf_script *script = container_of(tool, struct perf_script, tool); 912 struct perf_session *session = script->session; 913 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id); 914 915 thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid); 916 if (thread == NULL) { 917 pr_debug("problem processing EXIT event, skipping it.\n"); 918 return -1; 919 } 920 921 if (!evsel->attr.sample_id_all) { 922 sample->cpu = 0; 923 sample->time = 0; 924 sample->tid = event->fork.tid; 925 sample->pid = event->fork.pid; 926 } 927 print_sample_start(sample, thread, evsel); 928 perf_event__fprintf(event, stdout); 929 930 if (perf_event__process_exit(tool, event, sample, machine) < 0) 931 err = -1; 932 933 thread__put(thread); 934 return err; 935 } 936 937 static int process_mmap_event(struct perf_tool *tool, 938 union perf_event *event, 939 struct perf_sample *sample, 940 struct machine *machine) 941 { 942 struct thread *thread; 943 struct perf_script *script = container_of(tool, struct perf_script, tool); 944 struct perf_session *session = script->session; 945 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id); 946 947 if (perf_event__process_mmap(tool, event, sample, machine) < 0) 948 return -1; 949 950 thread = machine__findnew_thread(machine, event->mmap.pid, event->mmap.tid); 951 if (thread == NULL) { 952 pr_debug("problem processing MMAP event, skipping it.\n"); 953 return -1; 954 } 955 956 if (!evsel->attr.sample_id_all) { 957 sample->cpu = 0; 958 sample->time = 0; 959 sample->tid = event->mmap.tid; 960 sample->pid = event->mmap.pid; 961 } 962 print_sample_start(sample, thread, evsel); 963 perf_event__fprintf(event, stdout); 964 thread__put(thread); 965 return 0; 966 } 967 968 static int process_mmap2_event(struct perf_tool *tool, 969 union perf_event *event, 970 struct perf_sample *sample, 971 struct machine *machine) 972 { 973 struct thread *thread; 974 struct perf_script *script = container_of(tool, struct perf_script, tool); 975 struct perf_session *session = script->session; 976 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id); 977 978 if (perf_event__process_mmap2(tool, event, sample, machine) < 0) 979 return -1; 980 981 thread = machine__findnew_thread(machine, event->mmap2.pid, event->mmap2.tid); 982 if (thread == NULL) { 983 pr_debug("problem processing MMAP2 event, skipping it.\n"); 984 return -1; 985 } 986 987 if (!evsel->attr.sample_id_all) { 988 sample->cpu = 0; 989 sample->time = 0; 990 sample->tid = event->mmap2.tid; 991 sample->pid = event->mmap2.pid; 992 } 993 print_sample_start(sample, thread, evsel); 994 perf_event__fprintf(event, stdout); 995 thread__put(thread); 996 return 0; 997 } 998 999 static int process_switch_event(struct perf_tool *tool, 1000 union perf_event *event, 1001 struct perf_sample *sample, 1002 struct machine *machine) 1003 { 1004 struct thread *thread; 1005 struct perf_script *script = container_of(tool, struct perf_script, tool); 1006 struct perf_session *session = script->session; 1007 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id); 1008 1009 if (perf_event__process_switch(tool, event, sample, machine) < 0) 1010 return -1; 1011 1012 thread = machine__findnew_thread(machine, sample->pid, 1013 sample->tid); 1014 if (thread == NULL) { 1015 pr_debug("problem processing SWITCH event, skipping it.\n"); 1016 return -1; 1017 } 1018 1019 print_sample_start(sample, thread, evsel); 1020 perf_event__fprintf(event, stdout); 1021 thread__put(thread); 1022 return 0; 1023 } 1024 1025 static void sig_handler(int sig __maybe_unused) 1026 { 1027 session_done = 1; 1028 } 1029 1030 static int __cmd_script(struct perf_script *script) 1031 { 1032 int ret; 1033 1034 signal(SIGINT, sig_handler); 1035 1036 /* override event processing functions */ 1037 if (script->show_task_events) { 1038 script->tool.comm = process_comm_event; 1039 script->tool.fork = process_fork_event; 1040 script->tool.exit = process_exit_event; 1041 } 1042 if (script->show_mmap_events) { 1043 script->tool.mmap = process_mmap_event; 1044 script->tool.mmap2 = process_mmap2_event; 1045 } 1046 if (script->show_switch_events) 1047 script->tool.context_switch = process_switch_event; 1048 1049 ret = perf_session__process_events(script->session); 1050 1051 if (debug_mode) 1052 pr_err("Misordered timestamps: %" PRIu64 "\n", nr_unordered); 1053 1054 return ret; 1055 } 1056 1057 struct script_spec { 1058 struct list_head node; 1059 struct scripting_ops *ops; 1060 char spec[0]; 1061 }; 1062 1063 static LIST_HEAD(script_specs); 1064 1065 static struct script_spec *script_spec__new(const char *spec, 1066 struct scripting_ops *ops) 1067 { 1068 struct script_spec *s = malloc(sizeof(*s) + strlen(spec) + 1); 1069 1070 if (s != NULL) { 1071 strcpy(s->spec, spec); 1072 s->ops = ops; 1073 } 1074 1075 return s; 1076 } 1077 1078 static void script_spec__add(struct script_spec *s) 1079 { 1080 list_add_tail(&s->node, &script_specs); 1081 } 1082 1083 static struct script_spec *script_spec__find(const char *spec) 1084 { 1085 struct script_spec *s; 1086 1087 list_for_each_entry(s, &script_specs, node) 1088 if (strcasecmp(s->spec, spec) == 0) 1089 return s; 1090 return NULL; 1091 } 1092 1093 static struct script_spec *script_spec__findnew(const char *spec, 1094 struct scripting_ops *ops) 1095 { 1096 struct script_spec *s = script_spec__find(spec); 1097 1098 if (s) 1099 return s; 1100 1101 s = script_spec__new(spec, ops); 1102 if (!s) 1103 return NULL; 1104 1105 script_spec__add(s); 1106 1107 return s; 1108 } 1109 1110 int script_spec_register(const char *spec, struct scripting_ops *ops) 1111 { 1112 struct script_spec *s; 1113 1114 s = script_spec__find(spec); 1115 if (s) 1116 return -1; 1117 1118 s = script_spec__findnew(spec, ops); 1119 if (!s) 1120 return -1; 1121 1122 return 0; 1123 } 1124 1125 static struct scripting_ops *script_spec__lookup(const char *spec) 1126 { 1127 struct script_spec *s = script_spec__find(spec); 1128 if (!s) 1129 return NULL; 1130 1131 return s->ops; 1132 } 1133 1134 static void list_available_languages(void) 1135 { 1136 struct script_spec *s; 1137 1138 fprintf(stderr, "\n"); 1139 fprintf(stderr, "Scripting language extensions (used in " 1140 "perf script -s [spec:]script.[spec]):\n\n"); 1141 1142 list_for_each_entry(s, &script_specs, node) 1143 fprintf(stderr, " %-42s [%s]\n", s->spec, s->ops->name); 1144 1145 fprintf(stderr, "\n"); 1146 } 1147 1148 static int parse_scriptname(const struct option *opt __maybe_unused, 1149 const char *str, int unset __maybe_unused) 1150 { 1151 char spec[PATH_MAX]; 1152 const char *script, *ext; 1153 int len; 1154 1155 if (strcmp(str, "lang") == 0) { 1156 list_available_languages(); 1157 exit(0); 1158 } 1159 1160 script = strchr(str, ':'); 1161 if (script) { 1162 len = script - str; 1163 if (len >= PATH_MAX) { 1164 fprintf(stderr, "invalid language specifier"); 1165 return -1; 1166 } 1167 strncpy(spec, str, len); 1168 spec[len] = '\0'; 1169 scripting_ops = script_spec__lookup(spec); 1170 if (!scripting_ops) { 1171 fprintf(stderr, "invalid language specifier"); 1172 return -1; 1173 } 1174 script++; 1175 } else { 1176 script = str; 1177 ext = strrchr(script, '.'); 1178 if (!ext) { 1179 fprintf(stderr, "invalid script extension"); 1180 return -1; 1181 } 1182 scripting_ops = script_spec__lookup(++ext); 1183 if (!scripting_ops) { 1184 fprintf(stderr, "invalid script extension"); 1185 return -1; 1186 } 1187 } 1188 1189 script_name = strdup(script); 1190 1191 return 0; 1192 } 1193 1194 static int parse_output_fields(const struct option *opt __maybe_unused, 1195 const char *arg, int unset __maybe_unused) 1196 { 1197 char *tok; 1198 int i, imax = ARRAY_SIZE(all_output_options); 1199 int j; 1200 int rc = 0; 1201 char *str = strdup(arg); 1202 int type = -1; 1203 1204 if (!str) 1205 return -ENOMEM; 1206 1207 /* first word can state for which event type the user is specifying 1208 * the fields. If no type exists, the specified fields apply to all 1209 * event types found in the file minus the invalid fields for a type. 1210 */ 1211 tok = strchr(str, ':'); 1212 if (tok) { 1213 *tok = '\0'; 1214 tok++; 1215 if (!strcmp(str, "hw")) 1216 type = PERF_TYPE_HARDWARE; 1217 else if (!strcmp(str, "sw")) 1218 type = PERF_TYPE_SOFTWARE; 1219 else if (!strcmp(str, "trace")) 1220 type = PERF_TYPE_TRACEPOINT; 1221 else if (!strcmp(str, "raw")) 1222 type = PERF_TYPE_RAW; 1223 else if (!strcmp(str, "break")) 1224 type = PERF_TYPE_BREAKPOINT; 1225 else { 1226 fprintf(stderr, "Invalid event type in field string.\n"); 1227 rc = -EINVAL; 1228 goto out; 1229 } 1230 1231 if (output[type].user_set) 1232 pr_warning("Overriding previous field request for %s events.\n", 1233 event_type(type)); 1234 1235 output[type].fields = 0; 1236 output[type].user_set = true; 1237 output[type].wildcard_set = false; 1238 1239 } else { 1240 tok = str; 1241 if (strlen(str) == 0) { 1242 fprintf(stderr, 1243 "Cannot set fields to 'none' for all event types.\n"); 1244 rc = -EINVAL; 1245 goto out; 1246 } 1247 1248 if (output_set_by_user()) 1249 pr_warning("Overriding previous field request for all events.\n"); 1250 1251 for (j = 0; j < PERF_TYPE_MAX; ++j) { 1252 output[j].fields = 0; 1253 output[j].user_set = true; 1254 output[j].wildcard_set = true; 1255 } 1256 } 1257 1258 for (tok = strtok(tok, ","); tok; tok = strtok(NULL, ",")) { 1259 for (i = 0; i < imax; ++i) { 1260 if (strcmp(tok, all_output_options[i].str) == 0) 1261 break; 1262 } 1263 if (i == imax && strcmp(tok, "flags") == 0) { 1264 print_flags = true; 1265 continue; 1266 } 1267 if (i == imax) { 1268 fprintf(stderr, "Invalid field requested.\n"); 1269 rc = -EINVAL; 1270 goto out; 1271 } 1272 1273 if (type == -1) { 1274 /* add user option to all events types for 1275 * which it is valid 1276 */ 1277 for (j = 0; j < PERF_TYPE_MAX; ++j) { 1278 if (output[j].invalid_fields & all_output_options[i].field) { 1279 pr_warning("\'%s\' not valid for %s events. Ignoring.\n", 1280 all_output_options[i].str, event_type(j)); 1281 } else 1282 output[j].fields |= all_output_options[i].field; 1283 } 1284 } else { 1285 if (output[type].invalid_fields & all_output_options[i].field) { 1286 fprintf(stderr, "\'%s\' not valid for %s events.\n", 1287 all_output_options[i].str, event_type(type)); 1288 1289 rc = -EINVAL; 1290 goto out; 1291 } 1292 output[type].fields |= all_output_options[i].field; 1293 } 1294 } 1295 1296 if (type >= 0) { 1297 if (output[type].fields == 0) { 1298 pr_debug("No fields requested for %s type. " 1299 "Events will not be displayed.\n", event_type(type)); 1300 } 1301 } 1302 1303 out: 1304 free(str); 1305 return rc; 1306 } 1307 1308 /* Helper function for filesystems that return a dent->d_type DT_UNKNOWN */ 1309 static int is_directory(const char *base_path, const struct dirent *dent) 1310 { 1311 char path[PATH_MAX]; 1312 struct stat st; 1313 1314 sprintf(path, "%s/%s", base_path, dent->d_name); 1315 if (stat(path, &st)) 1316 return 0; 1317 1318 return S_ISDIR(st.st_mode); 1319 } 1320 1321 #define for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next)\ 1322 while (!readdir_r(scripts_dir, &lang_dirent, &lang_next) && \ 1323 lang_next) \ 1324 if ((lang_dirent.d_type == DT_DIR || \ 1325 (lang_dirent.d_type == DT_UNKNOWN && \ 1326 is_directory(scripts_path, &lang_dirent))) && \ 1327 (strcmp(lang_dirent.d_name, ".")) && \ 1328 (strcmp(lang_dirent.d_name, ".."))) 1329 1330 #define for_each_script(lang_path, lang_dir, script_dirent, script_next)\ 1331 while (!readdir_r(lang_dir, &script_dirent, &script_next) && \ 1332 script_next) \ 1333 if (script_dirent.d_type != DT_DIR && \ 1334 (script_dirent.d_type != DT_UNKNOWN || \ 1335 !is_directory(lang_path, &script_dirent))) 1336 1337 1338 #define RECORD_SUFFIX "-record" 1339 #define REPORT_SUFFIX "-report" 1340 1341 struct script_desc { 1342 struct list_head node; 1343 char *name; 1344 char *half_liner; 1345 char *args; 1346 }; 1347 1348 static LIST_HEAD(script_descs); 1349 1350 static struct script_desc *script_desc__new(const char *name) 1351 { 1352 struct script_desc *s = zalloc(sizeof(*s)); 1353 1354 if (s != NULL && name) 1355 s->name = strdup(name); 1356 1357 return s; 1358 } 1359 1360 static void script_desc__delete(struct script_desc *s) 1361 { 1362 zfree(&s->name); 1363 zfree(&s->half_liner); 1364 zfree(&s->args); 1365 free(s); 1366 } 1367 1368 static void script_desc__add(struct script_desc *s) 1369 { 1370 list_add_tail(&s->node, &script_descs); 1371 } 1372 1373 static struct script_desc *script_desc__find(const char *name) 1374 { 1375 struct script_desc *s; 1376 1377 list_for_each_entry(s, &script_descs, node) 1378 if (strcasecmp(s->name, name) == 0) 1379 return s; 1380 return NULL; 1381 } 1382 1383 static struct script_desc *script_desc__findnew(const char *name) 1384 { 1385 struct script_desc *s = script_desc__find(name); 1386 1387 if (s) 1388 return s; 1389 1390 s = script_desc__new(name); 1391 if (!s) 1392 goto out_delete_desc; 1393 1394 script_desc__add(s); 1395 1396 return s; 1397 1398 out_delete_desc: 1399 script_desc__delete(s); 1400 1401 return NULL; 1402 } 1403 1404 static const char *ends_with(const char *str, const char *suffix) 1405 { 1406 size_t suffix_len = strlen(suffix); 1407 const char *p = str; 1408 1409 if (strlen(str) > suffix_len) { 1410 p = str + strlen(str) - suffix_len; 1411 if (!strncmp(p, suffix, suffix_len)) 1412 return p; 1413 } 1414 1415 return NULL; 1416 } 1417 1418 static int read_script_info(struct script_desc *desc, const char *filename) 1419 { 1420 char line[BUFSIZ], *p; 1421 FILE *fp; 1422 1423 fp = fopen(filename, "r"); 1424 if (!fp) 1425 return -1; 1426 1427 while (fgets(line, sizeof(line), fp)) { 1428 p = ltrim(line); 1429 if (strlen(p) == 0) 1430 continue; 1431 if (*p != '#') 1432 continue; 1433 p++; 1434 if (strlen(p) && *p == '!') 1435 continue; 1436 1437 p = ltrim(p); 1438 if (strlen(p) && p[strlen(p) - 1] == '\n') 1439 p[strlen(p) - 1] = '\0'; 1440 1441 if (!strncmp(p, "description:", strlen("description:"))) { 1442 p += strlen("description:"); 1443 desc->half_liner = strdup(ltrim(p)); 1444 continue; 1445 } 1446 1447 if (!strncmp(p, "args:", strlen("args:"))) { 1448 p += strlen("args:"); 1449 desc->args = strdup(ltrim(p)); 1450 continue; 1451 } 1452 } 1453 1454 fclose(fp); 1455 1456 return 0; 1457 } 1458 1459 static char *get_script_root(struct dirent *script_dirent, const char *suffix) 1460 { 1461 char *script_root, *str; 1462 1463 script_root = strdup(script_dirent->d_name); 1464 if (!script_root) 1465 return NULL; 1466 1467 str = (char *)ends_with(script_root, suffix); 1468 if (!str) { 1469 free(script_root); 1470 return NULL; 1471 } 1472 1473 *str = '\0'; 1474 return script_root; 1475 } 1476 1477 static int list_available_scripts(const struct option *opt __maybe_unused, 1478 const char *s __maybe_unused, 1479 int unset __maybe_unused) 1480 { 1481 struct dirent *script_next, *lang_next, script_dirent, lang_dirent; 1482 char scripts_path[MAXPATHLEN]; 1483 DIR *scripts_dir, *lang_dir; 1484 char script_path[MAXPATHLEN]; 1485 char lang_path[MAXPATHLEN]; 1486 struct script_desc *desc; 1487 char first_half[BUFSIZ]; 1488 char *script_root; 1489 1490 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path()); 1491 1492 scripts_dir = opendir(scripts_path); 1493 if (!scripts_dir) 1494 return -1; 1495 1496 for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) { 1497 snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path, 1498 lang_dirent.d_name); 1499 lang_dir = opendir(lang_path); 1500 if (!lang_dir) 1501 continue; 1502 1503 for_each_script(lang_path, lang_dir, script_dirent, script_next) { 1504 script_root = get_script_root(&script_dirent, REPORT_SUFFIX); 1505 if (script_root) { 1506 desc = script_desc__findnew(script_root); 1507 snprintf(script_path, MAXPATHLEN, "%s/%s", 1508 lang_path, script_dirent.d_name); 1509 read_script_info(desc, script_path); 1510 free(script_root); 1511 } 1512 } 1513 } 1514 1515 fprintf(stdout, "List of available trace scripts:\n"); 1516 list_for_each_entry(desc, &script_descs, node) { 1517 sprintf(first_half, "%s %s", desc->name, 1518 desc->args ? desc->args : ""); 1519 fprintf(stdout, " %-36s %s\n", first_half, 1520 desc->half_liner ? desc->half_liner : ""); 1521 } 1522 1523 exit(0); 1524 } 1525 1526 /* 1527 * Some scripts specify the required events in their "xxx-record" file, 1528 * this function will check if the events in perf.data match those 1529 * mentioned in the "xxx-record". 1530 * 1531 * Fixme: All existing "xxx-record" are all in good formats "-e event ", 1532 * which is covered well now. And new parsing code should be added to 1533 * cover the future complexing formats like event groups etc. 1534 */ 1535 static int check_ev_match(char *dir_name, char *scriptname, 1536 struct perf_session *session) 1537 { 1538 char filename[MAXPATHLEN], evname[128]; 1539 char line[BUFSIZ], *p; 1540 struct perf_evsel *pos; 1541 int match, len; 1542 FILE *fp; 1543 1544 sprintf(filename, "%s/bin/%s-record", dir_name, scriptname); 1545 1546 fp = fopen(filename, "r"); 1547 if (!fp) 1548 return -1; 1549 1550 while (fgets(line, sizeof(line), fp)) { 1551 p = ltrim(line); 1552 if (*p == '#') 1553 continue; 1554 1555 while (strlen(p)) { 1556 p = strstr(p, "-e"); 1557 if (!p) 1558 break; 1559 1560 p += 2; 1561 p = ltrim(p); 1562 len = strcspn(p, " \t"); 1563 if (!len) 1564 break; 1565 1566 snprintf(evname, len + 1, "%s", p); 1567 1568 match = 0; 1569 evlist__for_each(session->evlist, pos) { 1570 if (!strcmp(perf_evsel__name(pos), evname)) { 1571 match = 1; 1572 break; 1573 } 1574 } 1575 1576 if (!match) { 1577 fclose(fp); 1578 return -1; 1579 } 1580 } 1581 } 1582 1583 fclose(fp); 1584 return 0; 1585 } 1586 1587 /* 1588 * Return -1 if none is found, otherwise the actual scripts number. 1589 * 1590 * Currently the only user of this function is the script browser, which 1591 * will list all statically runnable scripts, select one, execute it and 1592 * show the output in a perf browser. 1593 */ 1594 int find_scripts(char **scripts_array, char **scripts_path_array) 1595 { 1596 struct dirent *script_next, *lang_next, script_dirent, lang_dirent; 1597 char scripts_path[MAXPATHLEN], lang_path[MAXPATHLEN]; 1598 DIR *scripts_dir, *lang_dir; 1599 struct perf_session *session; 1600 struct perf_data_file file = { 1601 .path = input_name, 1602 .mode = PERF_DATA_MODE_READ, 1603 }; 1604 char *temp; 1605 int i = 0; 1606 1607 session = perf_session__new(&file, false, NULL); 1608 if (!session) 1609 return -1; 1610 1611 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path()); 1612 1613 scripts_dir = opendir(scripts_path); 1614 if (!scripts_dir) { 1615 perf_session__delete(session); 1616 return -1; 1617 } 1618 1619 for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) { 1620 snprintf(lang_path, MAXPATHLEN, "%s/%s", scripts_path, 1621 lang_dirent.d_name); 1622 #ifdef NO_LIBPERL 1623 if (strstr(lang_path, "perl")) 1624 continue; 1625 #endif 1626 #ifdef NO_LIBPYTHON 1627 if (strstr(lang_path, "python")) 1628 continue; 1629 #endif 1630 1631 lang_dir = opendir(lang_path); 1632 if (!lang_dir) 1633 continue; 1634 1635 for_each_script(lang_path, lang_dir, script_dirent, script_next) { 1636 /* Skip those real time scripts: xxxtop.p[yl] */ 1637 if (strstr(script_dirent.d_name, "top.")) 1638 continue; 1639 sprintf(scripts_path_array[i], "%s/%s", lang_path, 1640 script_dirent.d_name); 1641 temp = strchr(script_dirent.d_name, '.'); 1642 snprintf(scripts_array[i], 1643 (temp - script_dirent.d_name) + 1, 1644 "%s", script_dirent.d_name); 1645 1646 if (check_ev_match(lang_path, 1647 scripts_array[i], session)) 1648 continue; 1649 1650 i++; 1651 } 1652 closedir(lang_dir); 1653 } 1654 1655 closedir(scripts_dir); 1656 perf_session__delete(session); 1657 return i; 1658 } 1659 1660 static char *get_script_path(const char *script_root, const char *suffix) 1661 { 1662 struct dirent *script_next, *lang_next, script_dirent, lang_dirent; 1663 char scripts_path[MAXPATHLEN]; 1664 char script_path[MAXPATHLEN]; 1665 DIR *scripts_dir, *lang_dir; 1666 char lang_path[MAXPATHLEN]; 1667 char *__script_root; 1668 1669 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path()); 1670 1671 scripts_dir = opendir(scripts_path); 1672 if (!scripts_dir) 1673 return NULL; 1674 1675 for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) { 1676 snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path, 1677 lang_dirent.d_name); 1678 lang_dir = opendir(lang_path); 1679 if (!lang_dir) 1680 continue; 1681 1682 for_each_script(lang_path, lang_dir, script_dirent, script_next) { 1683 __script_root = get_script_root(&script_dirent, suffix); 1684 if (__script_root && !strcmp(script_root, __script_root)) { 1685 free(__script_root); 1686 closedir(lang_dir); 1687 closedir(scripts_dir); 1688 snprintf(script_path, MAXPATHLEN, "%s/%s", 1689 lang_path, script_dirent.d_name); 1690 return strdup(script_path); 1691 } 1692 free(__script_root); 1693 } 1694 closedir(lang_dir); 1695 } 1696 closedir(scripts_dir); 1697 1698 return NULL; 1699 } 1700 1701 static bool is_top_script(const char *script_path) 1702 { 1703 return ends_with(script_path, "top") == NULL ? false : true; 1704 } 1705 1706 static int has_required_arg(char *script_path) 1707 { 1708 struct script_desc *desc; 1709 int n_args = 0; 1710 char *p; 1711 1712 desc = script_desc__new(NULL); 1713 1714 if (read_script_info(desc, script_path)) 1715 goto out; 1716 1717 if (!desc->args) 1718 goto out; 1719 1720 for (p = desc->args; *p; p++) 1721 if (*p == '<') 1722 n_args++; 1723 out: 1724 script_desc__delete(desc); 1725 1726 return n_args; 1727 } 1728 1729 static int have_cmd(int argc, const char **argv) 1730 { 1731 char **__argv = malloc(sizeof(const char *) * argc); 1732 1733 if (!__argv) { 1734 pr_err("malloc failed\n"); 1735 return -1; 1736 } 1737 1738 memcpy(__argv, argv, sizeof(const char *) * argc); 1739 argc = parse_options(argc, (const char **)__argv, record_options, 1740 NULL, PARSE_OPT_STOP_AT_NON_OPTION); 1741 free(__argv); 1742 1743 system_wide = (argc == 0); 1744 1745 return 0; 1746 } 1747 1748 static void script__setup_sample_type(struct perf_script *script) 1749 { 1750 struct perf_session *session = script->session; 1751 u64 sample_type = perf_evlist__combined_sample_type(session->evlist); 1752 1753 if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain) { 1754 if ((sample_type & PERF_SAMPLE_REGS_USER) && 1755 (sample_type & PERF_SAMPLE_STACK_USER)) 1756 callchain_param.record_mode = CALLCHAIN_DWARF; 1757 else if (sample_type & PERF_SAMPLE_BRANCH_STACK) 1758 callchain_param.record_mode = CALLCHAIN_LBR; 1759 else 1760 callchain_param.record_mode = CALLCHAIN_FP; 1761 } 1762 } 1763 1764 static int process_stat_round_event(struct perf_tool *tool __maybe_unused, 1765 union perf_event *event, 1766 struct perf_session *session) 1767 { 1768 struct stat_round_event *round = &event->stat_round; 1769 struct perf_evsel *counter; 1770 1771 evlist__for_each(session->evlist, counter) { 1772 perf_stat_process_counter(&stat_config, counter); 1773 process_stat(counter, round->time); 1774 } 1775 1776 process_stat_interval(round->time); 1777 return 0; 1778 } 1779 1780 static int process_stat_config_event(struct perf_tool *tool __maybe_unused, 1781 union perf_event *event, 1782 struct perf_session *session __maybe_unused) 1783 { 1784 perf_event__read_stat_config(&stat_config, &event->stat_config); 1785 return 0; 1786 } 1787 1788 static int set_maps(struct perf_script *script) 1789 { 1790 struct perf_evlist *evlist = script->session->evlist; 1791 1792 if (!script->cpus || !script->threads) 1793 return 0; 1794 1795 if (WARN_ONCE(script->allocated, "stats double allocation\n")) 1796 return -EINVAL; 1797 1798 perf_evlist__set_maps(evlist, script->cpus, script->threads); 1799 1800 if (perf_evlist__alloc_stats(evlist, true)) 1801 return -ENOMEM; 1802 1803 script->allocated = true; 1804 return 0; 1805 } 1806 1807 static 1808 int process_thread_map_event(struct perf_tool *tool, 1809 union perf_event *event, 1810 struct perf_session *session __maybe_unused) 1811 { 1812 struct perf_script *script = container_of(tool, struct perf_script, tool); 1813 1814 if (script->threads) { 1815 pr_warning("Extra thread map event, ignoring.\n"); 1816 return 0; 1817 } 1818 1819 script->threads = thread_map__new_event(&event->thread_map); 1820 if (!script->threads) 1821 return -ENOMEM; 1822 1823 return set_maps(script); 1824 } 1825 1826 static 1827 int process_cpu_map_event(struct perf_tool *tool __maybe_unused, 1828 union perf_event *event, 1829 struct perf_session *session __maybe_unused) 1830 { 1831 struct perf_script *script = container_of(tool, struct perf_script, tool); 1832 1833 if (script->cpus) { 1834 pr_warning("Extra cpu map event, ignoring.\n"); 1835 return 0; 1836 } 1837 1838 script->cpus = cpu_map__new_data(&event->cpu_map.data); 1839 if (!script->cpus) 1840 return -ENOMEM; 1841 1842 return set_maps(script); 1843 } 1844 1845 int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) 1846 { 1847 bool show_full_info = false; 1848 bool header = false; 1849 bool header_only = false; 1850 bool script_started = false; 1851 char *rec_script_path = NULL; 1852 char *rep_script_path = NULL; 1853 struct perf_session *session; 1854 struct itrace_synth_opts itrace_synth_opts = { .set = false, }; 1855 char *script_path = NULL; 1856 const char **__argv; 1857 int i, j, err = 0; 1858 struct perf_script script = { 1859 .tool = { 1860 .sample = process_sample_event, 1861 .mmap = perf_event__process_mmap, 1862 .mmap2 = perf_event__process_mmap2, 1863 .comm = perf_event__process_comm, 1864 .exit = perf_event__process_exit, 1865 .fork = perf_event__process_fork, 1866 .attr = process_attr, 1867 .tracing_data = perf_event__process_tracing_data, 1868 .build_id = perf_event__process_build_id, 1869 .id_index = perf_event__process_id_index, 1870 .auxtrace_info = perf_event__process_auxtrace_info, 1871 .auxtrace = perf_event__process_auxtrace, 1872 .auxtrace_error = perf_event__process_auxtrace_error, 1873 .stat = perf_event__process_stat_event, 1874 .stat_round = process_stat_round_event, 1875 .stat_config = process_stat_config_event, 1876 .thread_map = process_thread_map_event, 1877 .cpu_map = process_cpu_map_event, 1878 .ordered_events = true, 1879 .ordering_requires_timestamps = true, 1880 }, 1881 }; 1882 struct perf_data_file file = { 1883 .mode = PERF_DATA_MODE_READ, 1884 }; 1885 const struct option options[] = { 1886 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, 1887 "dump raw trace in ASCII"), 1888 OPT_INCR('v', "verbose", &verbose, 1889 "be more verbose (show symbol address, etc)"), 1890 OPT_BOOLEAN('L', "Latency", &latency_format, 1891 "show latency attributes (irqs/preemption disabled, etc)"), 1892 OPT_CALLBACK_NOOPT('l', "list", NULL, NULL, "list available scripts", 1893 list_available_scripts), 1894 OPT_CALLBACK('s', "script", NULL, "name", 1895 "script file name (lang:script name, script name, or *)", 1896 parse_scriptname), 1897 OPT_STRING('g', "gen-script", &generate_script_lang, "lang", 1898 "generate perf-script.xx script in specified language"), 1899 OPT_STRING('i', "input", &input_name, "file", "input file name"), 1900 OPT_BOOLEAN('d', "debug-mode", &debug_mode, 1901 "do various checks like samples ordering and lost events"), 1902 OPT_BOOLEAN(0, "header", &header, "Show data header."), 1903 OPT_BOOLEAN(0, "header-only", &header_only, "Show only data header."), 1904 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, 1905 "file", "vmlinux pathname"), 1906 OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, 1907 "file", "kallsyms pathname"), 1908 OPT_BOOLEAN('G', "hide-call-graph", &no_callchain, 1909 "When printing symbols do not display call chain"), 1910 OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", 1911 "Look for files with symbols relative to this directory"), 1912 OPT_CALLBACK('F', "fields", NULL, "str", 1913 "comma separated output fields prepend with 'type:'. " 1914 "Valid types: hw,sw,trace,raw. " 1915 "Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso," 1916 "addr,symoff,period,iregs,brstack,brstacksym,flags", parse_output_fields), 1917 OPT_BOOLEAN('a', "all-cpus", &system_wide, 1918 "system-wide collection from all CPUs"), 1919 OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", 1920 "only consider these symbols"), 1921 OPT_STRING('C', "cpu", &cpu_list, "cpu", "list of cpus to profile"), 1922 OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", 1923 "only display events for these comms"), 1924 OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]", 1925 "only consider symbols in these pids"), 1926 OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]", 1927 "only consider symbols in these tids"), 1928 OPT_BOOLEAN('I', "show-info", &show_full_info, 1929 "display extended information from perf.data file"), 1930 OPT_BOOLEAN('\0', "show-kernel-path", &symbol_conf.show_kernel_path, 1931 "Show the path of [kernel.kallsyms]"), 1932 OPT_BOOLEAN('\0', "show-task-events", &script.show_task_events, 1933 "Show the fork/comm/exit events"), 1934 OPT_BOOLEAN('\0', "show-mmap-events", &script.show_mmap_events, 1935 "Show the mmap events"), 1936 OPT_BOOLEAN('\0', "show-switch-events", &script.show_switch_events, 1937 "Show context switch events (if recorded)"), 1938 OPT_BOOLEAN('f', "force", &file.force, "don't complain, do it"), 1939 OPT_BOOLEAN(0, "ns", &nanosecs, 1940 "Use 9 decimal places when displaying time"), 1941 OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts", 1942 "Instruction Tracing options", 1943 itrace_parse_synth_opts), 1944 OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename, 1945 "Show full source file name path for source lines"), 1946 OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle, 1947 "Enable symbol demangling"), 1948 OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, 1949 "Enable kernel symbol demangling"), 1950 1951 OPT_END() 1952 }; 1953 const char * const script_subcommands[] = { "record", "report", NULL }; 1954 const char *script_usage[] = { 1955 "perf script [<options>]", 1956 "perf script [<options>] record <script> [<record-options>] <command>", 1957 "perf script [<options>] report <script> [script-args]", 1958 "perf script [<options>] <script> [<record-options>] <command>", 1959 "perf script [<options>] <top-script> [script-args]", 1960 NULL 1961 }; 1962 1963 setup_scripting(); 1964 1965 argc = parse_options_subcommand(argc, argv, options, script_subcommands, script_usage, 1966 PARSE_OPT_STOP_AT_NON_OPTION); 1967 1968 file.path = input_name; 1969 1970 if (argc > 1 && !strncmp(argv[0], "rec", strlen("rec"))) { 1971 rec_script_path = get_script_path(argv[1], RECORD_SUFFIX); 1972 if (!rec_script_path) 1973 return cmd_record(argc, argv, NULL); 1974 } 1975 1976 if (argc > 1 && !strncmp(argv[0], "rep", strlen("rep"))) { 1977 rep_script_path = get_script_path(argv[1], REPORT_SUFFIX); 1978 if (!rep_script_path) { 1979 fprintf(stderr, 1980 "Please specify a valid report script" 1981 "(see 'perf script -l' for listing)\n"); 1982 return -1; 1983 } 1984 } 1985 1986 if (itrace_synth_opts.callchain && 1987 itrace_synth_opts.callchain_sz > scripting_max_stack) 1988 scripting_max_stack = itrace_synth_opts.callchain_sz; 1989 1990 /* make sure PERF_EXEC_PATH is set for scripts */ 1991 set_argv_exec_path(get_argv_exec_path()); 1992 1993 if (argc && !script_name && !rec_script_path && !rep_script_path) { 1994 int live_pipe[2]; 1995 int rep_args; 1996 pid_t pid; 1997 1998 rec_script_path = get_script_path(argv[0], RECORD_SUFFIX); 1999 rep_script_path = get_script_path(argv[0], REPORT_SUFFIX); 2000 2001 if (!rec_script_path && !rep_script_path) { 2002 usage_with_options_msg(script_usage, options, 2003 "Couldn't find script `%s'\n\n See perf" 2004 " script -l for available scripts.\n", argv[0]); 2005 } 2006 2007 if (is_top_script(argv[0])) { 2008 rep_args = argc - 1; 2009 } else { 2010 int rec_args; 2011 2012 rep_args = has_required_arg(rep_script_path); 2013 rec_args = (argc - 1) - rep_args; 2014 if (rec_args < 0) { 2015 usage_with_options_msg(script_usage, options, 2016 "`%s' script requires options." 2017 "\n\n See perf script -l for available " 2018 "scripts and options.\n", argv[0]); 2019 } 2020 } 2021 2022 if (pipe(live_pipe) < 0) { 2023 perror("failed to create pipe"); 2024 return -1; 2025 } 2026 2027 pid = fork(); 2028 if (pid < 0) { 2029 perror("failed to fork"); 2030 return -1; 2031 } 2032 2033 if (!pid) { 2034 j = 0; 2035 2036 dup2(live_pipe[1], 1); 2037 close(live_pipe[0]); 2038 2039 if (is_top_script(argv[0])) { 2040 system_wide = true; 2041 } else if (!system_wide) { 2042 if (have_cmd(argc - rep_args, &argv[rep_args]) != 0) { 2043 err = -1; 2044 goto out; 2045 } 2046 } 2047 2048 __argv = malloc((argc + 6) * sizeof(const char *)); 2049 if (!__argv) { 2050 pr_err("malloc failed\n"); 2051 err = -ENOMEM; 2052 goto out; 2053 } 2054 2055 __argv[j++] = "/bin/sh"; 2056 __argv[j++] = rec_script_path; 2057 if (system_wide) 2058 __argv[j++] = "-a"; 2059 __argv[j++] = "-q"; 2060 __argv[j++] = "-o"; 2061 __argv[j++] = "-"; 2062 for (i = rep_args + 1; i < argc; i++) 2063 __argv[j++] = argv[i]; 2064 __argv[j++] = NULL; 2065 2066 execvp("/bin/sh", (char **)__argv); 2067 free(__argv); 2068 exit(-1); 2069 } 2070 2071 dup2(live_pipe[0], 0); 2072 close(live_pipe[1]); 2073 2074 __argv = malloc((argc + 4) * sizeof(const char *)); 2075 if (!__argv) { 2076 pr_err("malloc failed\n"); 2077 err = -ENOMEM; 2078 goto out; 2079 } 2080 2081 j = 0; 2082 __argv[j++] = "/bin/sh"; 2083 __argv[j++] = rep_script_path; 2084 for (i = 1; i < rep_args + 1; i++) 2085 __argv[j++] = argv[i]; 2086 __argv[j++] = "-i"; 2087 __argv[j++] = "-"; 2088 __argv[j++] = NULL; 2089 2090 execvp("/bin/sh", (char **)__argv); 2091 free(__argv); 2092 exit(-1); 2093 } 2094 2095 if (rec_script_path) 2096 script_path = rec_script_path; 2097 if (rep_script_path) 2098 script_path = rep_script_path; 2099 2100 if (script_path) { 2101 j = 0; 2102 2103 if (!rec_script_path) 2104 system_wide = false; 2105 else if (!system_wide) { 2106 if (have_cmd(argc - 1, &argv[1]) != 0) { 2107 err = -1; 2108 goto out; 2109 } 2110 } 2111 2112 __argv = malloc((argc + 2) * sizeof(const char *)); 2113 if (!__argv) { 2114 pr_err("malloc failed\n"); 2115 err = -ENOMEM; 2116 goto out; 2117 } 2118 2119 __argv[j++] = "/bin/sh"; 2120 __argv[j++] = script_path; 2121 if (system_wide) 2122 __argv[j++] = "-a"; 2123 for (i = 2; i < argc; i++) 2124 __argv[j++] = argv[i]; 2125 __argv[j++] = NULL; 2126 2127 execvp("/bin/sh", (char **)__argv); 2128 free(__argv); 2129 exit(-1); 2130 } 2131 2132 if (!script_name) 2133 setup_pager(); 2134 2135 session = perf_session__new(&file, false, &script.tool); 2136 if (session == NULL) 2137 return -1; 2138 2139 if (header || header_only) { 2140 perf_session__fprintf_info(session, stdout, show_full_info); 2141 if (header_only) 2142 goto out_delete; 2143 } 2144 2145 if (symbol__init(&session->header.env) < 0) 2146 goto out_delete; 2147 2148 script.session = session; 2149 script__setup_sample_type(&script); 2150 2151 session->itrace_synth_opts = &itrace_synth_opts; 2152 2153 if (cpu_list) { 2154 err = perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap); 2155 if (err < 0) 2156 goto out_delete; 2157 } 2158 2159 if (!no_callchain) 2160 symbol_conf.use_callchain = true; 2161 else 2162 symbol_conf.use_callchain = false; 2163 2164 if (session->tevent.pevent && 2165 pevent_set_function_resolver(session->tevent.pevent, 2166 machine__resolve_kernel_addr, 2167 &session->machines.host) < 0) { 2168 pr_err("%s: failed to set libtraceevent function resolver\n", __func__); 2169 return -1; 2170 } 2171 2172 if (generate_script_lang) { 2173 struct stat perf_stat; 2174 int input; 2175 2176 if (output_set_by_user()) { 2177 fprintf(stderr, 2178 "custom fields not supported for generated scripts"); 2179 err = -EINVAL; 2180 goto out_delete; 2181 } 2182 2183 input = open(file.path, O_RDONLY); /* input_name */ 2184 if (input < 0) { 2185 err = -errno; 2186 perror("failed to open file"); 2187 goto out_delete; 2188 } 2189 2190 err = fstat(input, &perf_stat); 2191 if (err < 0) { 2192 perror("failed to stat file"); 2193 goto out_delete; 2194 } 2195 2196 if (!perf_stat.st_size) { 2197 fprintf(stderr, "zero-sized file, nothing to do!\n"); 2198 goto out_delete; 2199 } 2200 2201 scripting_ops = script_spec__lookup(generate_script_lang); 2202 if (!scripting_ops) { 2203 fprintf(stderr, "invalid language specifier"); 2204 err = -ENOENT; 2205 goto out_delete; 2206 } 2207 2208 err = scripting_ops->generate_script(session->tevent.pevent, 2209 "perf-script"); 2210 goto out_delete; 2211 } 2212 2213 if (script_name) { 2214 err = scripting_ops->start_script(script_name, argc, argv); 2215 if (err) 2216 goto out_delete; 2217 pr_debug("perf script started with script %s\n\n", script_name); 2218 script_started = true; 2219 } 2220 2221 2222 err = perf_session__check_output_opt(session); 2223 if (err < 0) 2224 goto out_delete; 2225 2226 err = __cmd_script(&script); 2227 2228 flush_scripting(); 2229 2230 out_delete: 2231 perf_evlist__free_stats(session->evlist); 2232 perf_session__delete(session); 2233 2234 if (script_started) 2235 cleanup_scripting(); 2236 out: 2237 return err; 2238 } 2239