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 #include "util/mem-events.h" 27 28 static char const *script_name; 29 static char const *generate_script_lang; 30 static bool debug_mode; 31 static u64 last_timestamp; 32 static u64 nr_unordered; 33 static bool no_callchain; 34 static bool latency_format; 35 static bool system_wide; 36 static bool print_flags; 37 static bool nanosecs; 38 static const char *cpu_list; 39 static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); 40 static struct perf_stat_config stat_config; 41 42 unsigned int scripting_max_stack = PERF_MAX_STACK_DEPTH; 43 44 enum perf_output_field { 45 PERF_OUTPUT_COMM = 1U << 0, 46 PERF_OUTPUT_TID = 1U << 1, 47 PERF_OUTPUT_PID = 1U << 2, 48 PERF_OUTPUT_TIME = 1U << 3, 49 PERF_OUTPUT_CPU = 1U << 4, 50 PERF_OUTPUT_EVNAME = 1U << 5, 51 PERF_OUTPUT_TRACE = 1U << 6, 52 PERF_OUTPUT_IP = 1U << 7, 53 PERF_OUTPUT_SYM = 1U << 8, 54 PERF_OUTPUT_DSO = 1U << 9, 55 PERF_OUTPUT_ADDR = 1U << 10, 56 PERF_OUTPUT_SYMOFFSET = 1U << 11, 57 PERF_OUTPUT_SRCLINE = 1U << 12, 58 PERF_OUTPUT_PERIOD = 1U << 13, 59 PERF_OUTPUT_IREGS = 1U << 14, 60 PERF_OUTPUT_BRSTACK = 1U << 15, 61 PERF_OUTPUT_BRSTACKSYM = 1U << 16, 62 PERF_OUTPUT_DATA_SRC = 1U << 17, 63 PERF_OUTPUT_WEIGHT = 1U << 18, 64 PERF_OUTPUT_BPF_OUTPUT = 1U << 19, 65 }; 66 67 struct output_option { 68 const char *str; 69 enum perf_output_field field; 70 } all_output_options[] = { 71 {.str = "comm", .field = PERF_OUTPUT_COMM}, 72 {.str = "tid", .field = PERF_OUTPUT_TID}, 73 {.str = "pid", .field = PERF_OUTPUT_PID}, 74 {.str = "time", .field = PERF_OUTPUT_TIME}, 75 {.str = "cpu", .field = PERF_OUTPUT_CPU}, 76 {.str = "event", .field = PERF_OUTPUT_EVNAME}, 77 {.str = "trace", .field = PERF_OUTPUT_TRACE}, 78 {.str = "ip", .field = PERF_OUTPUT_IP}, 79 {.str = "sym", .field = PERF_OUTPUT_SYM}, 80 {.str = "dso", .field = PERF_OUTPUT_DSO}, 81 {.str = "addr", .field = PERF_OUTPUT_ADDR}, 82 {.str = "symoff", .field = PERF_OUTPUT_SYMOFFSET}, 83 {.str = "srcline", .field = PERF_OUTPUT_SRCLINE}, 84 {.str = "period", .field = PERF_OUTPUT_PERIOD}, 85 {.str = "iregs", .field = PERF_OUTPUT_IREGS}, 86 {.str = "brstack", .field = PERF_OUTPUT_BRSTACK}, 87 {.str = "brstacksym", .field = PERF_OUTPUT_BRSTACKSYM}, 88 {.str = "data_src", .field = PERF_OUTPUT_DATA_SRC}, 89 {.str = "weight", .field = PERF_OUTPUT_WEIGHT}, 90 {.str = "bpf-output", .field = PERF_OUTPUT_BPF_OUTPUT}, 91 }; 92 93 /* default set to maintain compatibility with current format */ 94 static struct { 95 bool user_set; 96 bool wildcard_set; 97 unsigned int print_ip_opts; 98 u64 fields; 99 u64 invalid_fields; 100 } output[PERF_TYPE_MAX] = { 101 102 [PERF_TYPE_HARDWARE] = { 103 .user_set = false, 104 105 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | 106 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | 107 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP | 108 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO | 109 PERF_OUTPUT_PERIOD, 110 111 .invalid_fields = PERF_OUTPUT_TRACE | PERF_OUTPUT_BPF_OUTPUT, 112 }, 113 114 [PERF_TYPE_SOFTWARE] = { 115 .user_set = false, 116 117 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | 118 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | 119 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP | 120 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO | 121 PERF_OUTPUT_PERIOD | PERF_OUTPUT_BPF_OUTPUT, 122 123 .invalid_fields = PERF_OUTPUT_TRACE, 124 }, 125 126 [PERF_TYPE_TRACEPOINT] = { 127 .user_set = false, 128 129 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | 130 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | 131 PERF_OUTPUT_EVNAME | PERF_OUTPUT_TRACE 132 }, 133 134 [PERF_TYPE_RAW] = { 135 .user_set = false, 136 137 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | 138 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | 139 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP | 140 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO | 141 PERF_OUTPUT_PERIOD | PERF_OUTPUT_ADDR | 142 PERF_OUTPUT_DATA_SRC | PERF_OUTPUT_WEIGHT, 143 144 .invalid_fields = PERF_OUTPUT_TRACE | PERF_OUTPUT_BPF_OUTPUT, 145 }, 146 147 [PERF_TYPE_BREAKPOINT] = { 148 .user_set = false, 149 150 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | 151 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | 152 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP | 153 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO | 154 PERF_OUTPUT_PERIOD, 155 156 .invalid_fields = PERF_OUTPUT_TRACE | PERF_OUTPUT_BPF_OUTPUT, 157 }, 158 }; 159 160 static bool output_set_by_user(void) 161 { 162 int j; 163 for (j = 0; j < PERF_TYPE_MAX; ++j) { 164 if (output[j].user_set) 165 return true; 166 } 167 return false; 168 } 169 170 static const char *output_field2str(enum perf_output_field field) 171 { 172 int i, imax = ARRAY_SIZE(all_output_options); 173 const char *str = ""; 174 175 for (i = 0; i < imax; ++i) { 176 if (all_output_options[i].field == field) { 177 str = all_output_options[i].str; 178 break; 179 } 180 } 181 return str; 182 } 183 184 #define PRINT_FIELD(x) (output[attr->type].fields & PERF_OUTPUT_##x) 185 186 static int perf_evsel__do_check_stype(struct perf_evsel *evsel, 187 u64 sample_type, const char *sample_msg, 188 enum perf_output_field field, 189 bool allow_user_set) 190 { 191 struct perf_event_attr *attr = &evsel->attr; 192 int type = attr->type; 193 const char *evname; 194 195 if (attr->sample_type & sample_type) 196 return 0; 197 198 if (output[type].user_set) { 199 if (allow_user_set) 200 return 0; 201 evname = perf_evsel__name(evsel); 202 pr_err("Samples for '%s' event do not have %s attribute set. " 203 "Cannot print '%s' field.\n", 204 evname, sample_msg, output_field2str(field)); 205 return -1; 206 } 207 208 /* user did not ask for it explicitly so remove from the default list */ 209 output[type].fields &= ~field; 210 evname = perf_evsel__name(evsel); 211 pr_debug("Samples for '%s' event do not have %s attribute set. " 212 "Skipping '%s' field.\n", 213 evname, sample_msg, output_field2str(field)); 214 215 return 0; 216 } 217 218 static int perf_evsel__check_stype(struct perf_evsel *evsel, 219 u64 sample_type, const char *sample_msg, 220 enum perf_output_field field) 221 { 222 return perf_evsel__do_check_stype(evsel, sample_type, sample_msg, field, 223 false); 224 } 225 226 static int perf_evsel__check_attr(struct perf_evsel *evsel, 227 struct perf_session *session) 228 { 229 struct perf_event_attr *attr = &evsel->attr; 230 bool allow_user_set; 231 232 if (perf_header__has_feat(&session->header, HEADER_STAT)) 233 return 0; 234 235 allow_user_set = perf_header__has_feat(&session->header, 236 HEADER_AUXTRACE); 237 238 if (PRINT_FIELD(TRACE) && 239 !perf_session__has_traces(session, "record -R")) 240 return -EINVAL; 241 242 if (PRINT_FIELD(IP)) { 243 if (perf_evsel__check_stype(evsel, PERF_SAMPLE_IP, "IP", 244 PERF_OUTPUT_IP)) 245 return -EINVAL; 246 } 247 248 if (PRINT_FIELD(ADDR) && 249 perf_evsel__do_check_stype(evsel, PERF_SAMPLE_ADDR, "ADDR", 250 PERF_OUTPUT_ADDR, allow_user_set)) 251 return -EINVAL; 252 253 if (PRINT_FIELD(DATA_SRC) && 254 perf_evsel__check_stype(evsel, PERF_SAMPLE_DATA_SRC, "DATA_SRC", 255 PERF_OUTPUT_DATA_SRC)) 256 return -EINVAL; 257 258 if (PRINT_FIELD(WEIGHT) && 259 perf_evsel__check_stype(evsel, PERF_SAMPLE_WEIGHT, "WEIGHT", 260 PERF_OUTPUT_WEIGHT)) 261 return -EINVAL; 262 263 if (PRINT_FIELD(SYM) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) { 264 pr_err("Display of symbols requested but neither sample IP nor " 265 "sample address\nis selected. Hence, no addresses to convert " 266 "to symbols.\n"); 267 return -EINVAL; 268 } 269 if (PRINT_FIELD(SYMOFFSET) && !PRINT_FIELD(SYM)) { 270 pr_err("Display of offsets requested but symbol is not" 271 "selected.\n"); 272 return -EINVAL; 273 } 274 if (PRINT_FIELD(DSO) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) { 275 pr_err("Display of DSO requested but neither sample IP nor " 276 "sample address\nis selected. Hence, no addresses to convert " 277 "to DSO.\n"); 278 return -EINVAL; 279 } 280 if (PRINT_FIELD(SRCLINE) && !PRINT_FIELD(IP)) { 281 pr_err("Display of source line number requested but sample IP is not\n" 282 "selected. Hence, no address to lookup the source line number.\n"); 283 return -EINVAL; 284 } 285 286 if ((PRINT_FIELD(PID) || PRINT_FIELD(TID)) && 287 perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID", 288 PERF_OUTPUT_TID|PERF_OUTPUT_PID)) 289 return -EINVAL; 290 291 if (PRINT_FIELD(TIME) && 292 perf_evsel__check_stype(evsel, PERF_SAMPLE_TIME, "TIME", 293 PERF_OUTPUT_TIME)) 294 return -EINVAL; 295 296 if (PRINT_FIELD(CPU) && 297 perf_evsel__do_check_stype(evsel, PERF_SAMPLE_CPU, "CPU", 298 PERF_OUTPUT_CPU, allow_user_set)) 299 return -EINVAL; 300 301 if (PRINT_FIELD(PERIOD) && 302 perf_evsel__check_stype(evsel, PERF_SAMPLE_PERIOD, "PERIOD", 303 PERF_OUTPUT_PERIOD)) 304 return -EINVAL; 305 306 if (PRINT_FIELD(IREGS) && 307 perf_evsel__check_stype(evsel, PERF_SAMPLE_REGS_INTR, "IREGS", 308 PERF_OUTPUT_IREGS)) 309 return -EINVAL; 310 311 return 0; 312 } 313 314 static void set_print_ip_opts(struct perf_event_attr *attr) 315 { 316 unsigned int type = attr->type; 317 318 output[type].print_ip_opts = 0; 319 if (PRINT_FIELD(IP)) 320 output[type].print_ip_opts |= PRINT_IP_OPT_IP; 321 322 if (PRINT_FIELD(SYM)) 323 output[type].print_ip_opts |= PRINT_IP_OPT_SYM; 324 325 if (PRINT_FIELD(DSO)) 326 output[type].print_ip_opts |= PRINT_IP_OPT_DSO; 327 328 if (PRINT_FIELD(SYMOFFSET)) 329 output[type].print_ip_opts |= PRINT_IP_OPT_SYMOFFSET; 330 331 if (PRINT_FIELD(SRCLINE)) 332 output[type].print_ip_opts |= PRINT_IP_OPT_SRCLINE; 333 } 334 335 /* 336 * verify all user requested events exist and the samples 337 * have the expected data 338 */ 339 static int perf_session__check_output_opt(struct perf_session *session) 340 { 341 int j; 342 struct perf_evsel *evsel; 343 344 for (j = 0; j < PERF_TYPE_MAX; ++j) { 345 evsel = perf_session__find_first_evtype(session, j); 346 347 /* 348 * even if fields is set to 0 (ie., show nothing) event must 349 * exist if user explicitly includes it on the command line 350 */ 351 if (!evsel && output[j].user_set && !output[j].wildcard_set) { 352 pr_err("%s events do not exist. " 353 "Remove corresponding -f option to proceed.\n", 354 event_type(j)); 355 return -1; 356 } 357 358 if (evsel && output[j].fields && 359 perf_evsel__check_attr(evsel, session)) 360 return -1; 361 362 if (evsel == NULL) 363 continue; 364 365 set_print_ip_opts(&evsel->attr); 366 } 367 368 if (!no_callchain) { 369 bool use_callchain = false; 370 371 evlist__for_each(session->evlist, evsel) { 372 if (evsel->attr.sample_type & PERF_SAMPLE_CALLCHAIN) { 373 use_callchain = true; 374 break; 375 } 376 } 377 if (!use_callchain) 378 symbol_conf.use_callchain = false; 379 } 380 381 /* 382 * set default for tracepoints to print symbols only 383 * if callchains are present 384 */ 385 if (symbol_conf.use_callchain && 386 !output[PERF_TYPE_TRACEPOINT].user_set) { 387 struct perf_event_attr *attr; 388 389 j = PERF_TYPE_TRACEPOINT; 390 evsel = perf_session__find_first_evtype(session, j); 391 if (evsel == NULL) 392 goto out; 393 394 attr = &evsel->attr; 395 396 if (attr->sample_type & PERF_SAMPLE_CALLCHAIN) { 397 output[j].fields |= PERF_OUTPUT_IP; 398 output[j].fields |= PERF_OUTPUT_SYM; 399 output[j].fields |= PERF_OUTPUT_DSO; 400 set_print_ip_opts(attr); 401 } 402 } 403 404 out: 405 return 0; 406 } 407 408 static void print_sample_iregs(union perf_event *event __maybe_unused, 409 struct perf_sample *sample, 410 struct thread *thread __maybe_unused, 411 struct perf_event_attr *attr) 412 { 413 struct regs_dump *regs = &sample->intr_regs; 414 uint64_t mask = attr->sample_regs_intr; 415 unsigned i = 0, r; 416 417 if (!regs) 418 return; 419 420 for_each_set_bit(r, (unsigned long *) &mask, sizeof(mask) * 8) { 421 u64 val = regs->regs[i++]; 422 printf("%5s:0x%"PRIx64" ", perf_reg_name(r), val); 423 } 424 } 425 426 static void print_sample_start(struct perf_sample *sample, 427 struct thread *thread, 428 struct perf_evsel *evsel) 429 { 430 struct perf_event_attr *attr = &evsel->attr; 431 unsigned long secs; 432 unsigned long usecs; 433 unsigned long long nsecs; 434 435 if (PRINT_FIELD(COMM)) { 436 if (latency_format) 437 printf("%8.8s ", thread__comm_str(thread)); 438 else if (PRINT_FIELD(IP) && symbol_conf.use_callchain) 439 printf("%s ", thread__comm_str(thread)); 440 else 441 printf("%16s ", thread__comm_str(thread)); 442 } 443 444 if (PRINT_FIELD(PID) && PRINT_FIELD(TID)) 445 printf("%5d/%-5d ", sample->pid, sample->tid); 446 else if (PRINT_FIELD(PID)) 447 printf("%5d ", sample->pid); 448 else if (PRINT_FIELD(TID)) 449 printf("%5d ", sample->tid); 450 451 if (PRINT_FIELD(CPU)) { 452 if (latency_format) 453 printf("%3d ", sample->cpu); 454 else 455 printf("[%03d] ", sample->cpu); 456 } 457 458 if (PRINT_FIELD(TIME)) { 459 nsecs = sample->time; 460 secs = nsecs / NSECS_PER_SEC; 461 nsecs -= secs * NSECS_PER_SEC; 462 usecs = nsecs / NSECS_PER_USEC; 463 if (nanosecs) 464 printf("%5lu.%09llu: ", secs, nsecs); 465 else 466 printf("%5lu.%06lu: ", secs, usecs); 467 } 468 } 469 470 static inline char 471 mispred_str(struct branch_entry *br) 472 { 473 if (!(br->flags.mispred || br->flags.predicted)) 474 return '-'; 475 476 return br->flags.predicted ? 'P' : 'M'; 477 } 478 479 static void print_sample_brstack(union perf_event *event __maybe_unused, 480 struct perf_sample *sample, 481 struct thread *thread __maybe_unused, 482 struct perf_event_attr *attr __maybe_unused) 483 { 484 struct branch_stack *br = sample->branch_stack; 485 u64 i; 486 487 if (!(br && br->nr)) 488 return; 489 490 for (i = 0; i < br->nr; i++) { 491 printf(" 0x%"PRIx64"/0x%"PRIx64"/%c/%c/%c/%d ", 492 br->entries[i].from, 493 br->entries[i].to, 494 mispred_str( br->entries + i), 495 br->entries[i].flags.in_tx? 'X' : '-', 496 br->entries[i].flags.abort? 'A' : '-', 497 br->entries[i].flags.cycles); 498 } 499 } 500 501 static void print_sample_brstacksym(union perf_event *event __maybe_unused, 502 struct perf_sample *sample, 503 struct thread *thread __maybe_unused, 504 struct perf_event_attr *attr __maybe_unused) 505 { 506 struct branch_stack *br = sample->branch_stack; 507 struct addr_location alf, alt; 508 u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; 509 u64 i, from, to; 510 511 if (!(br && br->nr)) 512 return; 513 514 for (i = 0; i < br->nr; i++) { 515 516 memset(&alf, 0, sizeof(alf)); 517 memset(&alt, 0, sizeof(alt)); 518 from = br->entries[i].from; 519 to = br->entries[i].to; 520 521 thread__find_addr_map(thread, cpumode, MAP__FUNCTION, from, &alf); 522 if (alf.map) 523 alf.sym = map__find_symbol(alf.map, alf.addr, NULL); 524 525 thread__find_addr_map(thread, cpumode, MAP__FUNCTION, to, &alt); 526 if (alt.map) 527 alt.sym = map__find_symbol(alt.map, alt.addr, NULL); 528 529 symbol__fprintf_symname_offs(alf.sym, &alf, stdout); 530 putchar('/'); 531 symbol__fprintf_symname_offs(alt.sym, &alt, stdout); 532 printf("/%c/%c/%c/%d ", 533 mispred_str( br->entries + i), 534 br->entries[i].flags.in_tx? 'X' : '-', 535 br->entries[i].flags.abort? 'A' : '-', 536 br->entries[i].flags.cycles); 537 } 538 } 539 540 541 static void print_sample_addr(union perf_event *event, 542 struct perf_sample *sample, 543 struct thread *thread, 544 struct perf_event_attr *attr) 545 { 546 struct addr_location al; 547 548 printf("%16" PRIx64, sample->addr); 549 550 if (!sample_addr_correlates_sym(attr)) 551 return; 552 553 perf_event__preprocess_sample_addr(event, sample, thread, &al); 554 555 if (PRINT_FIELD(SYM)) { 556 printf(" "); 557 if (PRINT_FIELD(SYMOFFSET)) 558 symbol__fprintf_symname_offs(al.sym, &al, stdout); 559 else 560 symbol__fprintf_symname(al.sym, stdout); 561 } 562 563 if (PRINT_FIELD(DSO)) { 564 printf(" ("); 565 map__fprintf_dsoname(al.map, stdout); 566 printf(")"); 567 } 568 } 569 570 static void print_sample_bts(union perf_event *event, 571 struct perf_sample *sample, 572 struct perf_evsel *evsel, 573 struct thread *thread, 574 struct addr_location *al) 575 { 576 struct perf_event_attr *attr = &evsel->attr; 577 bool print_srcline_last = false; 578 579 /* print branch_from information */ 580 if (PRINT_FIELD(IP)) { 581 unsigned int print_opts = output[attr->type].print_ip_opts; 582 583 if (symbol_conf.use_callchain && sample->callchain) { 584 printf("\n"); 585 } else { 586 printf(" "); 587 if (print_opts & PRINT_IP_OPT_SRCLINE) { 588 print_srcline_last = true; 589 print_opts &= ~PRINT_IP_OPT_SRCLINE; 590 } 591 } 592 perf_evsel__print_ip(evsel, sample, al, print_opts, 593 scripting_max_stack); 594 } 595 596 /* print branch_to information */ 597 if (PRINT_FIELD(ADDR) || 598 ((evsel->attr.sample_type & PERF_SAMPLE_ADDR) && 599 !output[attr->type].user_set)) { 600 printf(" => "); 601 print_sample_addr(event, sample, thread, attr); 602 } 603 604 if (print_srcline_last) 605 map__fprintf_srcline(al->map, al->addr, "\n ", stdout); 606 607 printf("\n"); 608 } 609 610 static void print_sample_flags(u32 flags) 611 { 612 const char *chars = PERF_IP_FLAG_CHARS; 613 const int n = strlen(PERF_IP_FLAG_CHARS); 614 char str[33]; 615 int i, pos = 0; 616 617 for (i = 0; i < n; i++, flags >>= 1) { 618 if (flags & 1) 619 str[pos++] = chars[i]; 620 } 621 for (; i < 32; i++, flags >>= 1) { 622 if (flags & 1) 623 str[pos++] = '?'; 624 } 625 str[pos] = 0; 626 printf(" %-4s ", str); 627 } 628 629 struct printer_data { 630 int line_no; 631 bool hit_nul; 632 bool is_printable; 633 }; 634 635 static void 636 print_sample_bpf_output_printer(enum binary_printer_ops op, 637 unsigned int val, 638 void *extra) 639 { 640 unsigned char ch = (unsigned char)val; 641 struct printer_data *printer_data = extra; 642 643 switch (op) { 644 case BINARY_PRINT_DATA_BEGIN: 645 printf("\n"); 646 break; 647 case BINARY_PRINT_LINE_BEGIN: 648 printf("%17s", !printer_data->line_no ? "BPF output:" : 649 " "); 650 break; 651 case BINARY_PRINT_ADDR: 652 printf(" %04x:", val); 653 break; 654 case BINARY_PRINT_NUM_DATA: 655 printf(" %02x", val); 656 break; 657 case BINARY_PRINT_NUM_PAD: 658 printf(" "); 659 break; 660 case BINARY_PRINT_SEP: 661 printf(" "); 662 break; 663 case BINARY_PRINT_CHAR_DATA: 664 if (printer_data->hit_nul && ch) 665 printer_data->is_printable = false; 666 667 if (!isprint(ch)) { 668 printf("%c", '.'); 669 670 if (!printer_data->is_printable) 671 break; 672 673 if (ch == '\0') 674 printer_data->hit_nul = true; 675 else 676 printer_data->is_printable = false; 677 } else { 678 printf("%c", ch); 679 } 680 break; 681 case BINARY_PRINT_CHAR_PAD: 682 printf(" "); 683 break; 684 case BINARY_PRINT_LINE_END: 685 printf("\n"); 686 printer_data->line_no++; 687 break; 688 case BINARY_PRINT_DATA_END: 689 default: 690 break; 691 } 692 } 693 694 static void print_sample_bpf_output(struct perf_sample *sample) 695 { 696 unsigned int nr_bytes = sample->raw_size; 697 struct printer_data printer_data = {0, false, true}; 698 699 print_binary(sample->raw_data, nr_bytes, 8, 700 print_sample_bpf_output_printer, &printer_data); 701 702 if (printer_data.is_printable && printer_data.hit_nul) 703 printf("%17s \"%s\"\n", "BPF string:", 704 (char *)(sample->raw_data)); 705 } 706 707 struct perf_script { 708 struct perf_tool tool; 709 struct perf_session *session; 710 bool show_task_events; 711 bool show_mmap_events; 712 bool show_switch_events; 713 bool allocated; 714 struct cpu_map *cpus; 715 struct thread_map *threads; 716 int name_width; 717 }; 718 719 static int perf_evlist__max_name_len(struct perf_evlist *evlist) 720 { 721 struct perf_evsel *evsel; 722 int max = 0; 723 724 evlist__for_each(evlist, evsel) { 725 int len = strlen(perf_evsel__name(evsel)); 726 727 max = MAX(len, max); 728 } 729 730 return max; 731 } 732 733 static size_t data_src__printf(u64 data_src) 734 { 735 struct mem_info mi = { .data_src.val = data_src }; 736 char decode[100]; 737 char out[100]; 738 static int maxlen; 739 int len; 740 741 perf_script__meminfo_scnprintf(decode, 100, &mi); 742 743 len = scnprintf(out, 100, "%16" PRIx64 " %s", data_src, decode); 744 if (maxlen < len) 745 maxlen = len; 746 747 return printf("%-*s", maxlen, out); 748 } 749 750 static void process_event(struct perf_script *script, union perf_event *event, 751 struct perf_sample *sample, struct perf_evsel *evsel, 752 struct addr_location *al) 753 { 754 struct thread *thread = al->thread; 755 struct perf_event_attr *attr = &evsel->attr; 756 757 if (output[attr->type].fields == 0) 758 return; 759 760 print_sample_start(sample, thread, evsel); 761 762 if (PRINT_FIELD(PERIOD)) 763 printf("%10" PRIu64 " ", sample->period); 764 765 if (PRINT_FIELD(EVNAME)) { 766 const char *evname = perf_evsel__name(evsel); 767 768 if (!script->name_width) 769 script->name_width = perf_evlist__max_name_len(script->session->evlist); 770 771 printf("%*s: ", script->name_width, 772 evname ? evname : "[unknown]"); 773 } 774 775 if (print_flags) 776 print_sample_flags(sample->flags); 777 778 if (is_bts_event(attr)) { 779 print_sample_bts(event, sample, evsel, thread, al); 780 return; 781 } 782 783 if (PRINT_FIELD(TRACE)) 784 event_format__print(evsel->tp_format, sample->cpu, 785 sample->raw_data, sample->raw_size); 786 if (PRINT_FIELD(ADDR)) 787 print_sample_addr(event, sample, thread, attr); 788 789 if (PRINT_FIELD(DATA_SRC)) 790 data_src__printf(sample->data_src); 791 792 if (PRINT_FIELD(WEIGHT)) 793 printf("%16" PRIu64, sample->weight); 794 795 if (PRINT_FIELD(IP)) { 796 if (!symbol_conf.use_callchain) 797 printf(" "); 798 else 799 printf("\n"); 800 801 perf_evsel__print_ip(evsel, sample, al, 802 output[attr->type].print_ip_opts, 803 scripting_max_stack); 804 } 805 806 if (PRINT_FIELD(IREGS)) 807 print_sample_iregs(event, sample, thread, attr); 808 809 if (PRINT_FIELD(BRSTACK)) 810 print_sample_brstack(event, sample, thread, attr); 811 else if (PRINT_FIELD(BRSTACKSYM)) 812 print_sample_brstacksym(event, sample, thread, attr); 813 814 if (perf_evsel__is_bpf_output(evsel) && PRINT_FIELD(BPF_OUTPUT)) 815 print_sample_bpf_output(sample); 816 817 printf("\n"); 818 } 819 820 static struct scripting_ops *scripting_ops; 821 822 static void __process_stat(struct perf_evsel *counter, u64 tstamp) 823 { 824 int nthreads = thread_map__nr(counter->threads); 825 int ncpus = perf_evsel__nr_cpus(counter); 826 int cpu, thread; 827 static int header_printed; 828 829 if (counter->system_wide) 830 nthreads = 1; 831 832 if (!header_printed) { 833 printf("%3s %8s %15s %15s %15s %15s %s\n", 834 "CPU", "THREAD", "VAL", "ENA", "RUN", "TIME", "EVENT"); 835 header_printed = 1; 836 } 837 838 for (thread = 0; thread < nthreads; thread++) { 839 for (cpu = 0; cpu < ncpus; cpu++) { 840 struct perf_counts_values *counts; 841 842 counts = perf_counts(counter->counts, cpu, thread); 843 844 printf("%3d %8d %15" PRIu64 " %15" PRIu64 " %15" PRIu64 " %15" PRIu64 " %s\n", 845 counter->cpus->map[cpu], 846 thread_map__pid(counter->threads, thread), 847 counts->val, 848 counts->ena, 849 counts->run, 850 tstamp, 851 perf_evsel__name(counter)); 852 } 853 } 854 } 855 856 static void process_stat(struct perf_evsel *counter, u64 tstamp) 857 { 858 if (scripting_ops && scripting_ops->process_stat) 859 scripting_ops->process_stat(&stat_config, counter, tstamp); 860 else 861 __process_stat(counter, tstamp); 862 } 863 864 static void process_stat_interval(u64 tstamp) 865 { 866 if (scripting_ops && scripting_ops->process_stat_interval) 867 scripting_ops->process_stat_interval(tstamp); 868 } 869 870 static void setup_scripting(void) 871 { 872 setup_perl_scripting(); 873 setup_python_scripting(); 874 } 875 876 static int flush_scripting(void) 877 { 878 return scripting_ops ? scripting_ops->flush_script() : 0; 879 } 880 881 static int cleanup_scripting(void) 882 { 883 pr_debug("\nperf script stopped\n"); 884 885 return scripting_ops ? scripting_ops->stop_script() : 0; 886 } 887 888 static int process_sample_event(struct perf_tool *tool, 889 union perf_event *event, 890 struct perf_sample *sample, 891 struct perf_evsel *evsel, 892 struct machine *machine) 893 { 894 struct perf_script *scr = container_of(tool, struct perf_script, tool); 895 struct addr_location al; 896 897 if (debug_mode) { 898 if (sample->time < last_timestamp) { 899 pr_err("Samples misordered, previous: %" PRIu64 900 " this: %" PRIu64 "\n", last_timestamp, 901 sample->time); 902 nr_unordered++; 903 } 904 last_timestamp = sample->time; 905 return 0; 906 } 907 908 if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) { 909 pr_err("problem processing %d event, skipping it.\n", 910 event->header.type); 911 return -1; 912 } 913 914 if (al.filtered) 915 goto out_put; 916 917 if (cpu_list && !test_bit(sample->cpu, cpu_bitmap)) 918 goto out_put; 919 920 if (scripting_ops) 921 scripting_ops->process_event(event, sample, evsel, &al); 922 else 923 process_event(scr, event, sample, evsel, &al); 924 925 out_put: 926 addr_location__put(&al); 927 return 0; 928 } 929 930 static int process_attr(struct perf_tool *tool, union perf_event *event, 931 struct perf_evlist **pevlist) 932 { 933 struct perf_script *scr = container_of(tool, struct perf_script, tool); 934 struct perf_evlist *evlist; 935 struct perf_evsel *evsel, *pos; 936 int err; 937 938 err = perf_event__process_attr(tool, event, pevlist); 939 if (err) 940 return err; 941 942 evlist = *pevlist; 943 evsel = perf_evlist__last(*pevlist); 944 945 if (evsel->attr.type >= PERF_TYPE_MAX) 946 return 0; 947 948 evlist__for_each(evlist, pos) { 949 if (pos->attr.type == evsel->attr.type && pos != evsel) 950 return 0; 951 } 952 953 set_print_ip_opts(&evsel->attr); 954 955 if (evsel->attr.sample_type) 956 err = perf_evsel__check_attr(evsel, scr->session); 957 958 return err; 959 } 960 961 static int process_comm_event(struct perf_tool *tool, 962 union perf_event *event, 963 struct perf_sample *sample, 964 struct machine *machine) 965 { 966 struct thread *thread; 967 struct perf_script *script = container_of(tool, struct perf_script, tool); 968 struct perf_session *session = script->session; 969 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id); 970 int ret = -1; 971 972 thread = machine__findnew_thread(machine, event->comm.pid, event->comm.tid); 973 if (thread == NULL) { 974 pr_debug("problem processing COMM event, skipping it.\n"); 975 return -1; 976 } 977 978 if (perf_event__process_comm(tool, event, sample, machine) < 0) 979 goto out; 980 981 if (!evsel->attr.sample_id_all) { 982 sample->cpu = 0; 983 sample->time = 0; 984 sample->tid = event->comm.tid; 985 sample->pid = event->comm.pid; 986 } 987 print_sample_start(sample, thread, evsel); 988 perf_event__fprintf(event, stdout); 989 ret = 0; 990 out: 991 thread__put(thread); 992 return ret; 993 } 994 995 static int process_fork_event(struct perf_tool *tool, 996 union perf_event *event, 997 struct perf_sample *sample, 998 struct machine *machine) 999 { 1000 struct thread *thread; 1001 struct perf_script *script = container_of(tool, struct perf_script, tool); 1002 struct perf_session *session = script->session; 1003 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id); 1004 1005 if (perf_event__process_fork(tool, event, sample, machine) < 0) 1006 return -1; 1007 1008 thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid); 1009 if (thread == NULL) { 1010 pr_debug("problem processing FORK event, skipping it.\n"); 1011 return -1; 1012 } 1013 1014 if (!evsel->attr.sample_id_all) { 1015 sample->cpu = 0; 1016 sample->time = event->fork.time; 1017 sample->tid = event->fork.tid; 1018 sample->pid = event->fork.pid; 1019 } 1020 print_sample_start(sample, thread, evsel); 1021 perf_event__fprintf(event, stdout); 1022 thread__put(thread); 1023 1024 return 0; 1025 } 1026 static int process_exit_event(struct perf_tool *tool, 1027 union perf_event *event, 1028 struct perf_sample *sample, 1029 struct machine *machine) 1030 { 1031 int err = 0; 1032 struct thread *thread; 1033 struct perf_script *script = container_of(tool, struct perf_script, tool); 1034 struct perf_session *session = script->session; 1035 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id); 1036 1037 thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid); 1038 if (thread == NULL) { 1039 pr_debug("problem processing EXIT event, skipping it.\n"); 1040 return -1; 1041 } 1042 1043 if (!evsel->attr.sample_id_all) { 1044 sample->cpu = 0; 1045 sample->time = 0; 1046 sample->tid = event->fork.tid; 1047 sample->pid = event->fork.pid; 1048 } 1049 print_sample_start(sample, thread, evsel); 1050 perf_event__fprintf(event, stdout); 1051 1052 if (perf_event__process_exit(tool, event, sample, machine) < 0) 1053 err = -1; 1054 1055 thread__put(thread); 1056 return err; 1057 } 1058 1059 static int process_mmap_event(struct perf_tool *tool, 1060 union perf_event *event, 1061 struct perf_sample *sample, 1062 struct machine *machine) 1063 { 1064 struct thread *thread; 1065 struct perf_script *script = container_of(tool, struct perf_script, tool); 1066 struct perf_session *session = script->session; 1067 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id); 1068 1069 if (perf_event__process_mmap(tool, event, sample, machine) < 0) 1070 return -1; 1071 1072 thread = machine__findnew_thread(machine, event->mmap.pid, event->mmap.tid); 1073 if (thread == NULL) { 1074 pr_debug("problem processing MMAP event, skipping it.\n"); 1075 return -1; 1076 } 1077 1078 if (!evsel->attr.sample_id_all) { 1079 sample->cpu = 0; 1080 sample->time = 0; 1081 sample->tid = event->mmap.tid; 1082 sample->pid = event->mmap.pid; 1083 } 1084 print_sample_start(sample, thread, evsel); 1085 perf_event__fprintf(event, stdout); 1086 thread__put(thread); 1087 return 0; 1088 } 1089 1090 static int process_mmap2_event(struct perf_tool *tool, 1091 union perf_event *event, 1092 struct perf_sample *sample, 1093 struct machine *machine) 1094 { 1095 struct thread *thread; 1096 struct perf_script *script = container_of(tool, struct perf_script, tool); 1097 struct perf_session *session = script->session; 1098 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id); 1099 1100 if (perf_event__process_mmap2(tool, event, sample, machine) < 0) 1101 return -1; 1102 1103 thread = machine__findnew_thread(machine, event->mmap2.pid, event->mmap2.tid); 1104 if (thread == NULL) { 1105 pr_debug("problem processing MMAP2 event, skipping it.\n"); 1106 return -1; 1107 } 1108 1109 if (!evsel->attr.sample_id_all) { 1110 sample->cpu = 0; 1111 sample->time = 0; 1112 sample->tid = event->mmap2.tid; 1113 sample->pid = event->mmap2.pid; 1114 } 1115 print_sample_start(sample, thread, evsel); 1116 perf_event__fprintf(event, stdout); 1117 thread__put(thread); 1118 return 0; 1119 } 1120 1121 static int process_switch_event(struct perf_tool *tool, 1122 union perf_event *event, 1123 struct perf_sample *sample, 1124 struct machine *machine) 1125 { 1126 struct thread *thread; 1127 struct perf_script *script = container_of(tool, struct perf_script, tool); 1128 struct perf_session *session = script->session; 1129 struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id); 1130 1131 if (perf_event__process_switch(tool, event, sample, machine) < 0) 1132 return -1; 1133 1134 thread = machine__findnew_thread(machine, sample->pid, 1135 sample->tid); 1136 if (thread == NULL) { 1137 pr_debug("problem processing SWITCH event, skipping it.\n"); 1138 return -1; 1139 } 1140 1141 print_sample_start(sample, thread, evsel); 1142 perf_event__fprintf(event, stdout); 1143 thread__put(thread); 1144 return 0; 1145 } 1146 1147 static void sig_handler(int sig __maybe_unused) 1148 { 1149 session_done = 1; 1150 } 1151 1152 static int __cmd_script(struct perf_script *script) 1153 { 1154 int ret; 1155 1156 signal(SIGINT, sig_handler); 1157 1158 /* override event processing functions */ 1159 if (script->show_task_events) { 1160 script->tool.comm = process_comm_event; 1161 script->tool.fork = process_fork_event; 1162 script->tool.exit = process_exit_event; 1163 } 1164 if (script->show_mmap_events) { 1165 script->tool.mmap = process_mmap_event; 1166 script->tool.mmap2 = process_mmap2_event; 1167 } 1168 if (script->show_switch_events) 1169 script->tool.context_switch = process_switch_event; 1170 1171 ret = perf_session__process_events(script->session); 1172 1173 if (debug_mode) 1174 pr_err("Misordered timestamps: %" PRIu64 "\n", nr_unordered); 1175 1176 return ret; 1177 } 1178 1179 struct script_spec { 1180 struct list_head node; 1181 struct scripting_ops *ops; 1182 char spec[0]; 1183 }; 1184 1185 static LIST_HEAD(script_specs); 1186 1187 static struct script_spec *script_spec__new(const char *spec, 1188 struct scripting_ops *ops) 1189 { 1190 struct script_spec *s = malloc(sizeof(*s) + strlen(spec) + 1); 1191 1192 if (s != NULL) { 1193 strcpy(s->spec, spec); 1194 s->ops = ops; 1195 } 1196 1197 return s; 1198 } 1199 1200 static void script_spec__add(struct script_spec *s) 1201 { 1202 list_add_tail(&s->node, &script_specs); 1203 } 1204 1205 static struct script_spec *script_spec__find(const char *spec) 1206 { 1207 struct script_spec *s; 1208 1209 list_for_each_entry(s, &script_specs, node) 1210 if (strcasecmp(s->spec, spec) == 0) 1211 return s; 1212 return NULL; 1213 } 1214 1215 int script_spec_register(const char *spec, struct scripting_ops *ops) 1216 { 1217 struct script_spec *s; 1218 1219 s = script_spec__find(spec); 1220 if (s) 1221 return -1; 1222 1223 s = script_spec__new(spec, ops); 1224 if (!s) 1225 return -1; 1226 else 1227 script_spec__add(s); 1228 1229 return 0; 1230 } 1231 1232 static struct scripting_ops *script_spec__lookup(const char *spec) 1233 { 1234 struct script_spec *s = script_spec__find(spec); 1235 if (!s) 1236 return NULL; 1237 1238 return s->ops; 1239 } 1240 1241 static void list_available_languages(void) 1242 { 1243 struct script_spec *s; 1244 1245 fprintf(stderr, "\n"); 1246 fprintf(stderr, "Scripting language extensions (used in " 1247 "perf script -s [spec:]script.[spec]):\n\n"); 1248 1249 list_for_each_entry(s, &script_specs, node) 1250 fprintf(stderr, " %-42s [%s]\n", s->spec, s->ops->name); 1251 1252 fprintf(stderr, "\n"); 1253 } 1254 1255 static int parse_scriptname(const struct option *opt __maybe_unused, 1256 const char *str, int unset __maybe_unused) 1257 { 1258 char spec[PATH_MAX]; 1259 const char *script, *ext; 1260 int len; 1261 1262 if (strcmp(str, "lang") == 0) { 1263 list_available_languages(); 1264 exit(0); 1265 } 1266 1267 script = strchr(str, ':'); 1268 if (script) { 1269 len = script - str; 1270 if (len >= PATH_MAX) { 1271 fprintf(stderr, "invalid language specifier"); 1272 return -1; 1273 } 1274 strncpy(spec, str, len); 1275 spec[len] = '\0'; 1276 scripting_ops = script_spec__lookup(spec); 1277 if (!scripting_ops) { 1278 fprintf(stderr, "invalid language specifier"); 1279 return -1; 1280 } 1281 script++; 1282 } else { 1283 script = str; 1284 ext = strrchr(script, '.'); 1285 if (!ext) { 1286 fprintf(stderr, "invalid script extension"); 1287 return -1; 1288 } 1289 scripting_ops = script_spec__lookup(++ext); 1290 if (!scripting_ops) { 1291 fprintf(stderr, "invalid script extension"); 1292 return -1; 1293 } 1294 } 1295 1296 script_name = strdup(script); 1297 1298 return 0; 1299 } 1300 1301 static int parse_output_fields(const struct option *opt __maybe_unused, 1302 const char *arg, int unset __maybe_unused) 1303 { 1304 char *tok; 1305 int i, imax = ARRAY_SIZE(all_output_options); 1306 int j; 1307 int rc = 0; 1308 char *str = strdup(arg); 1309 int type = -1; 1310 1311 if (!str) 1312 return -ENOMEM; 1313 1314 /* first word can state for which event type the user is specifying 1315 * the fields. If no type exists, the specified fields apply to all 1316 * event types found in the file minus the invalid fields for a type. 1317 */ 1318 tok = strchr(str, ':'); 1319 if (tok) { 1320 *tok = '\0'; 1321 tok++; 1322 if (!strcmp(str, "hw")) 1323 type = PERF_TYPE_HARDWARE; 1324 else if (!strcmp(str, "sw")) 1325 type = PERF_TYPE_SOFTWARE; 1326 else if (!strcmp(str, "trace")) 1327 type = PERF_TYPE_TRACEPOINT; 1328 else if (!strcmp(str, "raw")) 1329 type = PERF_TYPE_RAW; 1330 else if (!strcmp(str, "break")) 1331 type = PERF_TYPE_BREAKPOINT; 1332 else { 1333 fprintf(stderr, "Invalid event type in field string.\n"); 1334 rc = -EINVAL; 1335 goto out; 1336 } 1337 1338 if (output[type].user_set) 1339 pr_warning("Overriding previous field request for %s events.\n", 1340 event_type(type)); 1341 1342 output[type].fields = 0; 1343 output[type].user_set = true; 1344 output[type].wildcard_set = false; 1345 1346 } else { 1347 tok = str; 1348 if (strlen(str) == 0) { 1349 fprintf(stderr, 1350 "Cannot set fields to 'none' for all event types.\n"); 1351 rc = -EINVAL; 1352 goto out; 1353 } 1354 1355 if (output_set_by_user()) 1356 pr_warning("Overriding previous field request for all events.\n"); 1357 1358 for (j = 0; j < PERF_TYPE_MAX; ++j) { 1359 output[j].fields = 0; 1360 output[j].user_set = true; 1361 output[j].wildcard_set = true; 1362 } 1363 } 1364 1365 for (tok = strtok(tok, ","); tok; tok = strtok(NULL, ",")) { 1366 for (i = 0; i < imax; ++i) { 1367 if (strcmp(tok, all_output_options[i].str) == 0) 1368 break; 1369 } 1370 if (i == imax && strcmp(tok, "flags") == 0) { 1371 print_flags = true; 1372 continue; 1373 } 1374 if (i == imax) { 1375 fprintf(stderr, "Invalid field requested.\n"); 1376 rc = -EINVAL; 1377 goto out; 1378 } 1379 1380 if (type == -1) { 1381 /* add user option to all events types for 1382 * which it is valid 1383 */ 1384 for (j = 0; j < PERF_TYPE_MAX; ++j) { 1385 if (output[j].invalid_fields & all_output_options[i].field) { 1386 pr_warning("\'%s\' not valid for %s events. Ignoring.\n", 1387 all_output_options[i].str, event_type(j)); 1388 } else 1389 output[j].fields |= all_output_options[i].field; 1390 } 1391 } else { 1392 if (output[type].invalid_fields & all_output_options[i].field) { 1393 fprintf(stderr, "\'%s\' not valid for %s events.\n", 1394 all_output_options[i].str, event_type(type)); 1395 1396 rc = -EINVAL; 1397 goto out; 1398 } 1399 output[type].fields |= all_output_options[i].field; 1400 } 1401 } 1402 1403 if (type >= 0) { 1404 if (output[type].fields == 0) { 1405 pr_debug("No fields requested for %s type. " 1406 "Events will not be displayed.\n", event_type(type)); 1407 } 1408 } 1409 1410 out: 1411 free(str); 1412 return rc; 1413 } 1414 1415 /* Helper function for filesystems that return a dent->d_type DT_UNKNOWN */ 1416 static int is_directory(const char *base_path, const struct dirent *dent) 1417 { 1418 char path[PATH_MAX]; 1419 struct stat st; 1420 1421 sprintf(path, "%s/%s", base_path, dent->d_name); 1422 if (stat(path, &st)) 1423 return 0; 1424 1425 return S_ISDIR(st.st_mode); 1426 } 1427 1428 #define for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next)\ 1429 while (!readdir_r(scripts_dir, &lang_dirent, &lang_next) && \ 1430 lang_next) \ 1431 if ((lang_dirent.d_type == DT_DIR || \ 1432 (lang_dirent.d_type == DT_UNKNOWN && \ 1433 is_directory(scripts_path, &lang_dirent))) && \ 1434 (strcmp(lang_dirent.d_name, ".")) && \ 1435 (strcmp(lang_dirent.d_name, ".."))) 1436 1437 #define for_each_script(lang_path, lang_dir, script_dirent, script_next)\ 1438 while (!readdir_r(lang_dir, &script_dirent, &script_next) && \ 1439 script_next) \ 1440 if (script_dirent.d_type != DT_DIR && \ 1441 (script_dirent.d_type != DT_UNKNOWN || \ 1442 !is_directory(lang_path, &script_dirent))) 1443 1444 1445 #define RECORD_SUFFIX "-record" 1446 #define REPORT_SUFFIX "-report" 1447 1448 struct script_desc { 1449 struct list_head node; 1450 char *name; 1451 char *half_liner; 1452 char *args; 1453 }; 1454 1455 static LIST_HEAD(script_descs); 1456 1457 static struct script_desc *script_desc__new(const char *name) 1458 { 1459 struct script_desc *s = zalloc(sizeof(*s)); 1460 1461 if (s != NULL && name) 1462 s->name = strdup(name); 1463 1464 return s; 1465 } 1466 1467 static void script_desc__delete(struct script_desc *s) 1468 { 1469 zfree(&s->name); 1470 zfree(&s->half_liner); 1471 zfree(&s->args); 1472 free(s); 1473 } 1474 1475 static void script_desc__add(struct script_desc *s) 1476 { 1477 list_add_tail(&s->node, &script_descs); 1478 } 1479 1480 static struct script_desc *script_desc__find(const char *name) 1481 { 1482 struct script_desc *s; 1483 1484 list_for_each_entry(s, &script_descs, node) 1485 if (strcasecmp(s->name, name) == 0) 1486 return s; 1487 return NULL; 1488 } 1489 1490 static struct script_desc *script_desc__findnew(const char *name) 1491 { 1492 struct script_desc *s = script_desc__find(name); 1493 1494 if (s) 1495 return s; 1496 1497 s = script_desc__new(name); 1498 if (!s) 1499 goto out_delete_desc; 1500 1501 script_desc__add(s); 1502 1503 return s; 1504 1505 out_delete_desc: 1506 script_desc__delete(s); 1507 1508 return NULL; 1509 } 1510 1511 static const char *ends_with(const char *str, const char *suffix) 1512 { 1513 size_t suffix_len = strlen(suffix); 1514 const char *p = str; 1515 1516 if (strlen(str) > suffix_len) { 1517 p = str + strlen(str) - suffix_len; 1518 if (!strncmp(p, suffix, suffix_len)) 1519 return p; 1520 } 1521 1522 return NULL; 1523 } 1524 1525 static int read_script_info(struct script_desc *desc, const char *filename) 1526 { 1527 char line[BUFSIZ], *p; 1528 FILE *fp; 1529 1530 fp = fopen(filename, "r"); 1531 if (!fp) 1532 return -1; 1533 1534 while (fgets(line, sizeof(line), fp)) { 1535 p = ltrim(line); 1536 if (strlen(p) == 0) 1537 continue; 1538 if (*p != '#') 1539 continue; 1540 p++; 1541 if (strlen(p) && *p == '!') 1542 continue; 1543 1544 p = ltrim(p); 1545 if (strlen(p) && p[strlen(p) - 1] == '\n') 1546 p[strlen(p) - 1] = '\0'; 1547 1548 if (!strncmp(p, "description:", strlen("description:"))) { 1549 p += strlen("description:"); 1550 desc->half_liner = strdup(ltrim(p)); 1551 continue; 1552 } 1553 1554 if (!strncmp(p, "args:", strlen("args:"))) { 1555 p += strlen("args:"); 1556 desc->args = strdup(ltrim(p)); 1557 continue; 1558 } 1559 } 1560 1561 fclose(fp); 1562 1563 return 0; 1564 } 1565 1566 static char *get_script_root(struct dirent *script_dirent, const char *suffix) 1567 { 1568 char *script_root, *str; 1569 1570 script_root = strdup(script_dirent->d_name); 1571 if (!script_root) 1572 return NULL; 1573 1574 str = (char *)ends_with(script_root, suffix); 1575 if (!str) { 1576 free(script_root); 1577 return NULL; 1578 } 1579 1580 *str = '\0'; 1581 return script_root; 1582 } 1583 1584 static int list_available_scripts(const struct option *opt __maybe_unused, 1585 const char *s __maybe_unused, 1586 int unset __maybe_unused) 1587 { 1588 struct dirent *script_next, *lang_next, script_dirent, lang_dirent; 1589 char scripts_path[MAXPATHLEN]; 1590 DIR *scripts_dir, *lang_dir; 1591 char script_path[MAXPATHLEN]; 1592 char lang_path[MAXPATHLEN]; 1593 struct script_desc *desc; 1594 char first_half[BUFSIZ]; 1595 char *script_root; 1596 1597 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path()); 1598 1599 scripts_dir = opendir(scripts_path); 1600 if (!scripts_dir) 1601 return -1; 1602 1603 for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) { 1604 snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path, 1605 lang_dirent.d_name); 1606 lang_dir = opendir(lang_path); 1607 if (!lang_dir) 1608 continue; 1609 1610 for_each_script(lang_path, lang_dir, script_dirent, script_next) { 1611 script_root = get_script_root(&script_dirent, REPORT_SUFFIX); 1612 if (script_root) { 1613 desc = script_desc__findnew(script_root); 1614 snprintf(script_path, MAXPATHLEN, "%s/%s", 1615 lang_path, script_dirent.d_name); 1616 read_script_info(desc, script_path); 1617 free(script_root); 1618 } 1619 } 1620 } 1621 1622 fprintf(stdout, "List of available trace scripts:\n"); 1623 list_for_each_entry(desc, &script_descs, node) { 1624 sprintf(first_half, "%s %s", desc->name, 1625 desc->args ? desc->args : ""); 1626 fprintf(stdout, " %-36s %s\n", first_half, 1627 desc->half_liner ? desc->half_liner : ""); 1628 } 1629 1630 exit(0); 1631 } 1632 1633 /* 1634 * Some scripts specify the required events in their "xxx-record" file, 1635 * this function will check if the events in perf.data match those 1636 * mentioned in the "xxx-record". 1637 * 1638 * Fixme: All existing "xxx-record" are all in good formats "-e event ", 1639 * which is covered well now. And new parsing code should be added to 1640 * cover the future complexing formats like event groups etc. 1641 */ 1642 static int check_ev_match(char *dir_name, char *scriptname, 1643 struct perf_session *session) 1644 { 1645 char filename[MAXPATHLEN], evname[128]; 1646 char line[BUFSIZ], *p; 1647 struct perf_evsel *pos; 1648 int match, len; 1649 FILE *fp; 1650 1651 sprintf(filename, "%s/bin/%s-record", dir_name, scriptname); 1652 1653 fp = fopen(filename, "r"); 1654 if (!fp) 1655 return -1; 1656 1657 while (fgets(line, sizeof(line), fp)) { 1658 p = ltrim(line); 1659 if (*p == '#') 1660 continue; 1661 1662 while (strlen(p)) { 1663 p = strstr(p, "-e"); 1664 if (!p) 1665 break; 1666 1667 p += 2; 1668 p = ltrim(p); 1669 len = strcspn(p, " \t"); 1670 if (!len) 1671 break; 1672 1673 snprintf(evname, len + 1, "%s", p); 1674 1675 match = 0; 1676 evlist__for_each(session->evlist, pos) { 1677 if (!strcmp(perf_evsel__name(pos), evname)) { 1678 match = 1; 1679 break; 1680 } 1681 } 1682 1683 if (!match) { 1684 fclose(fp); 1685 return -1; 1686 } 1687 } 1688 } 1689 1690 fclose(fp); 1691 return 0; 1692 } 1693 1694 /* 1695 * Return -1 if none is found, otherwise the actual scripts number. 1696 * 1697 * Currently the only user of this function is the script browser, which 1698 * will list all statically runnable scripts, select one, execute it and 1699 * show the output in a perf browser. 1700 */ 1701 int find_scripts(char **scripts_array, char **scripts_path_array) 1702 { 1703 struct dirent *script_next, *lang_next, script_dirent, lang_dirent; 1704 char scripts_path[MAXPATHLEN], lang_path[MAXPATHLEN]; 1705 DIR *scripts_dir, *lang_dir; 1706 struct perf_session *session; 1707 struct perf_data_file file = { 1708 .path = input_name, 1709 .mode = PERF_DATA_MODE_READ, 1710 }; 1711 char *temp; 1712 int i = 0; 1713 1714 session = perf_session__new(&file, false, NULL); 1715 if (!session) 1716 return -1; 1717 1718 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path()); 1719 1720 scripts_dir = opendir(scripts_path); 1721 if (!scripts_dir) { 1722 perf_session__delete(session); 1723 return -1; 1724 } 1725 1726 for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) { 1727 snprintf(lang_path, MAXPATHLEN, "%s/%s", scripts_path, 1728 lang_dirent.d_name); 1729 #ifdef NO_LIBPERL 1730 if (strstr(lang_path, "perl")) 1731 continue; 1732 #endif 1733 #ifdef NO_LIBPYTHON 1734 if (strstr(lang_path, "python")) 1735 continue; 1736 #endif 1737 1738 lang_dir = opendir(lang_path); 1739 if (!lang_dir) 1740 continue; 1741 1742 for_each_script(lang_path, lang_dir, script_dirent, script_next) { 1743 /* Skip those real time scripts: xxxtop.p[yl] */ 1744 if (strstr(script_dirent.d_name, "top.")) 1745 continue; 1746 sprintf(scripts_path_array[i], "%s/%s", lang_path, 1747 script_dirent.d_name); 1748 temp = strchr(script_dirent.d_name, '.'); 1749 snprintf(scripts_array[i], 1750 (temp - script_dirent.d_name) + 1, 1751 "%s", script_dirent.d_name); 1752 1753 if (check_ev_match(lang_path, 1754 scripts_array[i], session)) 1755 continue; 1756 1757 i++; 1758 } 1759 closedir(lang_dir); 1760 } 1761 1762 closedir(scripts_dir); 1763 perf_session__delete(session); 1764 return i; 1765 } 1766 1767 static char *get_script_path(const char *script_root, const char *suffix) 1768 { 1769 struct dirent *script_next, *lang_next, script_dirent, lang_dirent; 1770 char scripts_path[MAXPATHLEN]; 1771 char script_path[MAXPATHLEN]; 1772 DIR *scripts_dir, *lang_dir; 1773 char lang_path[MAXPATHLEN]; 1774 char *__script_root; 1775 1776 snprintf(scripts_path, MAXPATHLEN, "%s/scripts", get_argv_exec_path()); 1777 1778 scripts_dir = opendir(scripts_path); 1779 if (!scripts_dir) 1780 return NULL; 1781 1782 for_each_lang(scripts_path, scripts_dir, lang_dirent, lang_next) { 1783 snprintf(lang_path, MAXPATHLEN, "%s/%s/bin", scripts_path, 1784 lang_dirent.d_name); 1785 lang_dir = opendir(lang_path); 1786 if (!lang_dir) 1787 continue; 1788 1789 for_each_script(lang_path, lang_dir, script_dirent, script_next) { 1790 __script_root = get_script_root(&script_dirent, suffix); 1791 if (__script_root && !strcmp(script_root, __script_root)) { 1792 free(__script_root); 1793 closedir(lang_dir); 1794 closedir(scripts_dir); 1795 snprintf(script_path, MAXPATHLEN, "%s/%s", 1796 lang_path, script_dirent.d_name); 1797 return strdup(script_path); 1798 } 1799 free(__script_root); 1800 } 1801 closedir(lang_dir); 1802 } 1803 closedir(scripts_dir); 1804 1805 return NULL; 1806 } 1807 1808 static bool is_top_script(const char *script_path) 1809 { 1810 return ends_with(script_path, "top") == NULL ? false : true; 1811 } 1812 1813 static int has_required_arg(char *script_path) 1814 { 1815 struct script_desc *desc; 1816 int n_args = 0; 1817 char *p; 1818 1819 desc = script_desc__new(NULL); 1820 1821 if (read_script_info(desc, script_path)) 1822 goto out; 1823 1824 if (!desc->args) 1825 goto out; 1826 1827 for (p = desc->args; *p; p++) 1828 if (*p == '<') 1829 n_args++; 1830 out: 1831 script_desc__delete(desc); 1832 1833 return n_args; 1834 } 1835 1836 static int have_cmd(int argc, const char **argv) 1837 { 1838 char **__argv = malloc(sizeof(const char *) * argc); 1839 1840 if (!__argv) { 1841 pr_err("malloc failed\n"); 1842 return -1; 1843 } 1844 1845 memcpy(__argv, argv, sizeof(const char *) * argc); 1846 argc = parse_options(argc, (const char **)__argv, record_options, 1847 NULL, PARSE_OPT_STOP_AT_NON_OPTION); 1848 free(__argv); 1849 1850 system_wide = (argc == 0); 1851 1852 return 0; 1853 } 1854 1855 static void script__setup_sample_type(struct perf_script *script) 1856 { 1857 struct perf_session *session = script->session; 1858 u64 sample_type = perf_evlist__combined_sample_type(session->evlist); 1859 1860 if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain) { 1861 if ((sample_type & PERF_SAMPLE_REGS_USER) && 1862 (sample_type & PERF_SAMPLE_STACK_USER)) 1863 callchain_param.record_mode = CALLCHAIN_DWARF; 1864 else if (sample_type & PERF_SAMPLE_BRANCH_STACK) 1865 callchain_param.record_mode = CALLCHAIN_LBR; 1866 else 1867 callchain_param.record_mode = CALLCHAIN_FP; 1868 } 1869 } 1870 1871 static int process_stat_round_event(struct perf_tool *tool __maybe_unused, 1872 union perf_event *event, 1873 struct perf_session *session) 1874 { 1875 struct stat_round_event *round = &event->stat_round; 1876 struct perf_evsel *counter; 1877 1878 evlist__for_each(session->evlist, counter) { 1879 perf_stat_process_counter(&stat_config, counter); 1880 process_stat(counter, round->time); 1881 } 1882 1883 process_stat_interval(round->time); 1884 return 0; 1885 } 1886 1887 static int process_stat_config_event(struct perf_tool *tool __maybe_unused, 1888 union perf_event *event, 1889 struct perf_session *session __maybe_unused) 1890 { 1891 perf_event__read_stat_config(&stat_config, &event->stat_config); 1892 return 0; 1893 } 1894 1895 static int set_maps(struct perf_script *script) 1896 { 1897 struct perf_evlist *evlist = script->session->evlist; 1898 1899 if (!script->cpus || !script->threads) 1900 return 0; 1901 1902 if (WARN_ONCE(script->allocated, "stats double allocation\n")) 1903 return -EINVAL; 1904 1905 perf_evlist__set_maps(evlist, script->cpus, script->threads); 1906 1907 if (perf_evlist__alloc_stats(evlist, true)) 1908 return -ENOMEM; 1909 1910 script->allocated = true; 1911 return 0; 1912 } 1913 1914 static 1915 int process_thread_map_event(struct perf_tool *tool, 1916 union perf_event *event, 1917 struct perf_session *session __maybe_unused) 1918 { 1919 struct perf_script *script = container_of(tool, struct perf_script, tool); 1920 1921 if (script->threads) { 1922 pr_warning("Extra thread map event, ignoring.\n"); 1923 return 0; 1924 } 1925 1926 script->threads = thread_map__new_event(&event->thread_map); 1927 if (!script->threads) 1928 return -ENOMEM; 1929 1930 return set_maps(script); 1931 } 1932 1933 static 1934 int process_cpu_map_event(struct perf_tool *tool __maybe_unused, 1935 union perf_event *event, 1936 struct perf_session *session __maybe_unused) 1937 { 1938 struct perf_script *script = container_of(tool, struct perf_script, tool); 1939 1940 if (script->cpus) { 1941 pr_warning("Extra cpu map event, ignoring.\n"); 1942 return 0; 1943 } 1944 1945 script->cpus = cpu_map__new_data(&event->cpu_map.data); 1946 if (!script->cpus) 1947 return -ENOMEM; 1948 1949 return set_maps(script); 1950 } 1951 1952 int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused) 1953 { 1954 bool show_full_info = false; 1955 bool header = false; 1956 bool header_only = false; 1957 bool script_started = false; 1958 char *rec_script_path = NULL; 1959 char *rep_script_path = NULL; 1960 struct perf_session *session; 1961 struct itrace_synth_opts itrace_synth_opts = { .set = false, }; 1962 char *script_path = NULL; 1963 const char **__argv; 1964 int i, j, err = 0; 1965 struct perf_script script = { 1966 .tool = { 1967 .sample = process_sample_event, 1968 .mmap = perf_event__process_mmap, 1969 .mmap2 = perf_event__process_mmap2, 1970 .comm = perf_event__process_comm, 1971 .exit = perf_event__process_exit, 1972 .fork = perf_event__process_fork, 1973 .attr = process_attr, 1974 .tracing_data = perf_event__process_tracing_data, 1975 .build_id = perf_event__process_build_id, 1976 .id_index = perf_event__process_id_index, 1977 .auxtrace_info = perf_event__process_auxtrace_info, 1978 .auxtrace = perf_event__process_auxtrace, 1979 .auxtrace_error = perf_event__process_auxtrace_error, 1980 .stat = perf_event__process_stat_event, 1981 .stat_round = process_stat_round_event, 1982 .stat_config = process_stat_config_event, 1983 .thread_map = process_thread_map_event, 1984 .cpu_map = process_cpu_map_event, 1985 .ordered_events = true, 1986 .ordering_requires_timestamps = true, 1987 }, 1988 }; 1989 struct perf_data_file file = { 1990 .mode = PERF_DATA_MODE_READ, 1991 }; 1992 const struct option options[] = { 1993 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, 1994 "dump raw trace in ASCII"), 1995 OPT_INCR('v', "verbose", &verbose, 1996 "be more verbose (show symbol address, etc)"), 1997 OPT_BOOLEAN('L', "Latency", &latency_format, 1998 "show latency attributes (irqs/preemption disabled, etc)"), 1999 OPT_CALLBACK_NOOPT('l', "list", NULL, NULL, "list available scripts", 2000 list_available_scripts), 2001 OPT_CALLBACK('s', "script", NULL, "name", 2002 "script file name (lang:script name, script name, or *)", 2003 parse_scriptname), 2004 OPT_STRING('g', "gen-script", &generate_script_lang, "lang", 2005 "generate perf-script.xx script in specified language"), 2006 OPT_STRING('i', "input", &input_name, "file", "input file name"), 2007 OPT_BOOLEAN('d', "debug-mode", &debug_mode, 2008 "do various checks like samples ordering and lost events"), 2009 OPT_BOOLEAN(0, "header", &header, "Show data header."), 2010 OPT_BOOLEAN(0, "header-only", &header_only, "Show only data header."), 2011 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, 2012 "file", "vmlinux pathname"), 2013 OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, 2014 "file", "kallsyms pathname"), 2015 OPT_BOOLEAN('G', "hide-call-graph", &no_callchain, 2016 "When printing symbols do not display call chain"), 2017 OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", 2018 "Look for files with symbols relative to this directory"), 2019 OPT_CALLBACK('F', "fields", NULL, "str", 2020 "comma separated output fields prepend with 'type:'. " 2021 "Valid types: hw,sw,trace,raw. " 2022 "Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso," 2023 "addr,symoff,period,iregs,brstack,brstacksym,flags", parse_output_fields), 2024 OPT_BOOLEAN('a', "all-cpus", &system_wide, 2025 "system-wide collection from all CPUs"), 2026 OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", 2027 "only consider these symbols"), 2028 OPT_STRING('C', "cpu", &cpu_list, "cpu", "list of cpus to profile"), 2029 OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", 2030 "only display events for these comms"), 2031 OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]", 2032 "only consider symbols in these pids"), 2033 OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]", 2034 "only consider symbols in these tids"), 2035 OPT_BOOLEAN('I', "show-info", &show_full_info, 2036 "display extended information from perf.data file"), 2037 OPT_BOOLEAN('\0', "show-kernel-path", &symbol_conf.show_kernel_path, 2038 "Show the path of [kernel.kallsyms]"), 2039 OPT_BOOLEAN('\0', "show-task-events", &script.show_task_events, 2040 "Show the fork/comm/exit events"), 2041 OPT_BOOLEAN('\0', "show-mmap-events", &script.show_mmap_events, 2042 "Show the mmap events"), 2043 OPT_BOOLEAN('\0', "show-switch-events", &script.show_switch_events, 2044 "Show context switch events (if recorded)"), 2045 OPT_BOOLEAN('f', "force", &file.force, "don't complain, do it"), 2046 OPT_BOOLEAN(0, "ns", &nanosecs, 2047 "Use 9 decimal places when displaying time"), 2048 OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts", 2049 "Instruction Tracing options", 2050 itrace_parse_synth_opts), 2051 OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename, 2052 "Show full source file name path for source lines"), 2053 OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle, 2054 "Enable symbol demangling"), 2055 OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, 2056 "Enable kernel symbol demangling"), 2057 2058 OPT_END() 2059 }; 2060 const char * const script_subcommands[] = { "record", "report", NULL }; 2061 const char *script_usage[] = { 2062 "perf script [<options>]", 2063 "perf script [<options>] record <script> [<record-options>] <command>", 2064 "perf script [<options>] report <script> [script-args]", 2065 "perf script [<options>] <script> [<record-options>] <command>", 2066 "perf script [<options>] <top-script> [script-args]", 2067 NULL 2068 }; 2069 2070 setup_scripting(); 2071 2072 argc = parse_options_subcommand(argc, argv, options, script_subcommands, script_usage, 2073 PARSE_OPT_STOP_AT_NON_OPTION); 2074 2075 file.path = input_name; 2076 2077 if (argc > 1 && !strncmp(argv[0], "rec", strlen("rec"))) { 2078 rec_script_path = get_script_path(argv[1], RECORD_SUFFIX); 2079 if (!rec_script_path) 2080 return cmd_record(argc, argv, NULL); 2081 } 2082 2083 if (argc > 1 && !strncmp(argv[0], "rep", strlen("rep"))) { 2084 rep_script_path = get_script_path(argv[1], REPORT_SUFFIX); 2085 if (!rep_script_path) { 2086 fprintf(stderr, 2087 "Please specify a valid report script" 2088 "(see 'perf script -l' for listing)\n"); 2089 return -1; 2090 } 2091 } 2092 2093 if (itrace_synth_opts.callchain && 2094 itrace_synth_opts.callchain_sz > scripting_max_stack) 2095 scripting_max_stack = itrace_synth_opts.callchain_sz; 2096 2097 /* make sure PERF_EXEC_PATH is set for scripts */ 2098 set_argv_exec_path(get_argv_exec_path()); 2099 2100 if (argc && !script_name && !rec_script_path && !rep_script_path) { 2101 int live_pipe[2]; 2102 int rep_args; 2103 pid_t pid; 2104 2105 rec_script_path = get_script_path(argv[0], RECORD_SUFFIX); 2106 rep_script_path = get_script_path(argv[0], REPORT_SUFFIX); 2107 2108 if (!rec_script_path && !rep_script_path) { 2109 usage_with_options_msg(script_usage, options, 2110 "Couldn't find script `%s'\n\n See perf" 2111 " script -l for available scripts.\n", argv[0]); 2112 } 2113 2114 if (is_top_script(argv[0])) { 2115 rep_args = argc - 1; 2116 } else { 2117 int rec_args; 2118 2119 rep_args = has_required_arg(rep_script_path); 2120 rec_args = (argc - 1) - rep_args; 2121 if (rec_args < 0) { 2122 usage_with_options_msg(script_usage, options, 2123 "`%s' script requires options." 2124 "\n\n See perf script -l for available " 2125 "scripts and options.\n", argv[0]); 2126 } 2127 } 2128 2129 if (pipe(live_pipe) < 0) { 2130 perror("failed to create pipe"); 2131 return -1; 2132 } 2133 2134 pid = fork(); 2135 if (pid < 0) { 2136 perror("failed to fork"); 2137 return -1; 2138 } 2139 2140 if (!pid) { 2141 j = 0; 2142 2143 dup2(live_pipe[1], 1); 2144 close(live_pipe[0]); 2145 2146 if (is_top_script(argv[0])) { 2147 system_wide = true; 2148 } else if (!system_wide) { 2149 if (have_cmd(argc - rep_args, &argv[rep_args]) != 0) { 2150 err = -1; 2151 goto out; 2152 } 2153 } 2154 2155 __argv = malloc((argc + 6) * sizeof(const char *)); 2156 if (!__argv) { 2157 pr_err("malloc failed\n"); 2158 err = -ENOMEM; 2159 goto out; 2160 } 2161 2162 __argv[j++] = "/bin/sh"; 2163 __argv[j++] = rec_script_path; 2164 if (system_wide) 2165 __argv[j++] = "-a"; 2166 __argv[j++] = "-q"; 2167 __argv[j++] = "-o"; 2168 __argv[j++] = "-"; 2169 for (i = rep_args + 1; i < argc; i++) 2170 __argv[j++] = argv[i]; 2171 __argv[j++] = NULL; 2172 2173 execvp("/bin/sh", (char **)__argv); 2174 free(__argv); 2175 exit(-1); 2176 } 2177 2178 dup2(live_pipe[0], 0); 2179 close(live_pipe[1]); 2180 2181 __argv = malloc((argc + 4) * sizeof(const char *)); 2182 if (!__argv) { 2183 pr_err("malloc failed\n"); 2184 err = -ENOMEM; 2185 goto out; 2186 } 2187 2188 j = 0; 2189 __argv[j++] = "/bin/sh"; 2190 __argv[j++] = rep_script_path; 2191 for (i = 1; i < rep_args + 1; i++) 2192 __argv[j++] = argv[i]; 2193 __argv[j++] = "-i"; 2194 __argv[j++] = "-"; 2195 __argv[j++] = NULL; 2196 2197 execvp("/bin/sh", (char **)__argv); 2198 free(__argv); 2199 exit(-1); 2200 } 2201 2202 if (rec_script_path) 2203 script_path = rec_script_path; 2204 if (rep_script_path) 2205 script_path = rep_script_path; 2206 2207 if (script_path) { 2208 j = 0; 2209 2210 if (!rec_script_path) 2211 system_wide = false; 2212 else if (!system_wide) { 2213 if (have_cmd(argc - 1, &argv[1]) != 0) { 2214 err = -1; 2215 goto out; 2216 } 2217 } 2218 2219 __argv = malloc((argc + 2) * sizeof(const char *)); 2220 if (!__argv) { 2221 pr_err("malloc failed\n"); 2222 err = -ENOMEM; 2223 goto out; 2224 } 2225 2226 __argv[j++] = "/bin/sh"; 2227 __argv[j++] = script_path; 2228 if (system_wide) 2229 __argv[j++] = "-a"; 2230 for (i = 2; i < argc; i++) 2231 __argv[j++] = argv[i]; 2232 __argv[j++] = NULL; 2233 2234 execvp("/bin/sh", (char **)__argv); 2235 free(__argv); 2236 exit(-1); 2237 } 2238 2239 if (!script_name) 2240 setup_pager(); 2241 2242 session = perf_session__new(&file, false, &script.tool); 2243 if (session == NULL) 2244 return -1; 2245 2246 if (header || header_only) { 2247 perf_session__fprintf_info(session, stdout, show_full_info); 2248 if (header_only) 2249 goto out_delete; 2250 } 2251 2252 if (symbol__init(&session->header.env) < 0) 2253 goto out_delete; 2254 2255 script.session = session; 2256 script__setup_sample_type(&script); 2257 2258 session->itrace_synth_opts = &itrace_synth_opts; 2259 2260 if (cpu_list) { 2261 err = perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap); 2262 if (err < 0) 2263 goto out_delete; 2264 } 2265 2266 if (!no_callchain) 2267 symbol_conf.use_callchain = true; 2268 else 2269 symbol_conf.use_callchain = false; 2270 2271 if (session->tevent.pevent && 2272 pevent_set_function_resolver(session->tevent.pevent, 2273 machine__resolve_kernel_addr, 2274 &session->machines.host) < 0) { 2275 pr_err("%s: failed to set libtraceevent function resolver\n", __func__); 2276 return -1; 2277 } 2278 2279 if (generate_script_lang) { 2280 struct stat perf_stat; 2281 int input; 2282 2283 if (output_set_by_user()) { 2284 fprintf(stderr, 2285 "custom fields not supported for generated scripts"); 2286 err = -EINVAL; 2287 goto out_delete; 2288 } 2289 2290 input = open(file.path, O_RDONLY); /* input_name */ 2291 if (input < 0) { 2292 err = -errno; 2293 perror("failed to open file"); 2294 goto out_delete; 2295 } 2296 2297 err = fstat(input, &perf_stat); 2298 if (err < 0) { 2299 perror("failed to stat file"); 2300 goto out_delete; 2301 } 2302 2303 if (!perf_stat.st_size) { 2304 fprintf(stderr, "zero-sized file, nothing to do!\n"); 2305 goto out_delete; 2306 } 2307 2308 scripting_ops = script_spec__lookup(generate_script_lang); 2309 if (!scripting_ops) { 2310 fprintf(stderr, "invalid language specifier"); 2311 err = -ENOENT; 2312 goto out_delete; 2313 } 2314 2315 err = scripting_ops->generate_script(session->tevent.pevent, 2316 "perf-script"); 2317 goto out_delete; 2318 } 2319 2320 if (script_name) { 2321 err = scripting_ops->start_script(script_name, argc, argv); 2322 if (err) 2323 goto out_delete; 2324 pr_debug("perf script started with script %s\n\n", script_name); 2325 script_started = true; 2326 } 2327 2328 2329 err = perf_session__check_output_opt(session); 2330 if (err < 0) 2331 goto out_delete; 2332 2333 err = __cmd_script(&script); 2334 2335 flush_scripting(); 2336 2337 out_delete: 2338 perf_evlist__free_stats(session->evlist); 2339 perf_session__delete(session); 2340 2341 if (script_started) 2342 cleanup_scripting(); 2343 out: 2344 return err; 2345 } 2346