1 /* 2 * builtin-report.c 3 * 4 * Builtin report command: Analyze the perf.data input file, 5 * look up and read DSOs and symbol information and display 6 * a histogram of results, along various sorting keys. 7 */ 8 #include "builtin.h" 9 10 #include "util/util.h" 11 12 #include "util/color.h" 13 #include <linux/list.h> 14 #include "util/cache.h" 15 #include <linux/rbtree.h> 16 #include "util/symbol.h" 17 #include "util/string.h" 18 #include "util/callchain.h" 19 #include "util/strlist.h" 20 #include "util/values.h" 21 22 #include "perf.h" 23 #include "util/debug.h" 24 #include "util/header.h" 25 26 #include "util/parse-options.h" 27 #include "util/parse-events.h" 28 29 #include "util/data_map.h" 30 #include "util/thread.h" 31 #include "util/sort.h" 32 #include "util/hist.h" 33 34 static char const *input_name = "perf.data"; 35 36 static char *dso_list_str, *comm_list_str, *sym_list_str, 37 *col_width_list_str; 38 static struct strlist *dso_list, *comm_list, *sym_list; 39 40 static int force; 41 42 static int full_paths; 43 static int show_nr_samples; 44 45 static int show_threads; 46 static struct perf_read_values show_threads_values; 47 48 static char default_pretty_printing_style[] = "normal"; 49 static char *pretty_printing_style = default_pretty_printing_style; 50 51 static int exclude_other = 1; 52 53 static char callchain_default_opt[] = "fractal,0.5"; 54 55 static struct perf_header *header; 56 57 static u64 sample_type; 58 59 struct symbol_conf symbol_conf; 60 61 62 static size_t 63 callchain__fprintf_left_margin(FILE *fp, int left_margin) 64 { 65 int i; 66 int ret; 67 68 ret = fprintf(fp, " "); 69 70 for (i = 0; i < left_margin; i++) 71 ret += fprintf(fp, " "); 72 73 return ret; 74 } 75 76 static size_t ipchain__fprintf_graph_line(FILE *fp, int depth, int depth_mask, 77 int left_margin) 78 { 79 int i; 80 size_t ret = 0; 81 82 ret += callchain__fprintf_left_margin(fp, left_margin); 83 84 for (i = 0; i < depth; i++) 85 if (depth_mask & (1 << i)) 86 ret += fprintf(fp, "| "); 87 else 88 ret += fprintf(fp, " "); 89 90 ret += fprintf(fp, "\n"); 91 92 return ret; 93 } 94 static size_t 95 ipchain__fprintf_graph(FILE *fp, struct callchain_list *chain, int depth, 96 int depth_mask, int count, u64 total_samples, 97 int hits, int left_margin) 98 { 99 int i; 100 size_t ret = 0; 101 102 ret += callchain__fprintf_left_margin(fp, left_margin); 103 for (i = 0; i < depth; i++) { 104 if (depth_mask & (1 << i)) 105 ret += fprintf(fp, "|"); 106 else 107 ret += fprintf(fp, " "); 108 if (!count && i == depth - 1) { 109 double percent; 110 111 percent = hits * 100.0 / total_samples; 112 ret += percent_color_fprintf(fp, "--%2.2f%%-- ", percent); 113 } else 114 ret += fprintf(fp, "%s", " "); 115 } 116 if (chain->sym) 117 ret += fprintf(fp, "%s\n", chain->sym->name); 118 else 119 ret += fprintf(fp, "%p\n", (void *)(long)chain->ip); 120 121 return ret; 122 } 123 124 static struct symbol *rem_sq_bracket; 125 static struct callchain_list rem_hits; 126 127 static void init_rem_hits(void) 128 { 129 rem_sq_bracket = malloc(sizeof(*rem_sq_bracket) + 6); 130 if (!rem_sq_bracket) { 131 fprintf(stderr, "Not enough memory to display remaining hits\n"); 132 return; 133 } 134 135 strcpy(rem_sq_bracket->name, "[...]"); 136 rem_hits.sym = rem_sq_bracket; 137 } 138 139 static size_t 140 __callchain__fprintf_graph(FILE *fp, struct callchain_node *self, 141 u64 total_samples, int depth, int depth_mask, 142 int left_margin) 143 { 144 struct rb_node *node, *next; 145 struct callchain_node *child; 146 struct callchain_list *chain; 147 int new_depth_mask = depth_mask; 148 u64 new_total; 149 u64 remaining; 150 size_t ret = 0; 151 int i; 152 153 if (callchain_param.mode == CHAIN_GRAPH_REL) 154 new_total = self->children_hit; 155 else 156 new_total = total_samples; 157 158 remaining = new_total; 159 160 node = rb_first(&self->rb_root); 161 while (node) { 162 u64 cumul; 163 164 child = rb_entry(node, struct callchain_node, rb_node); 165 cumul = cumul_hits(child); 166 remaining -= cumul; 167 168 /* 169 * The depth mask manages the output of pipes that show 170 * the depth. We don't want to keep the pipes of the current 171 * level for the last child of this depth. 172 * Except if we have remaining filtered hits. They will 173 * supersede the last child 174 */ 175 next = rb_next(node); 176 if (!next && (callchain_param.mode != CHAIN_GRAPH_REL || !remaining)) 177 new_depth_mask &= ~(1 << (depth - 1)); 178 179 /* 180 * But we keep the older depth mask for the line seperator 181 * to keep the level link until we reach the last child 182 */ 183 ret += ipchain__fprintf_graph_line(fp, depth, depth_mask, 184 left_margin); 185 i = 0; 186 list_for_each_entry(chain, &child->val, list) { 187 if (chain->ip >= PERF_CONTEXT_MAX) 188 continue; 189 ret += ipchain__fprintf_graph(fp, chain, depth, 190 new_depth_mask, i++, 191 new_total, 192 cumul, 193 left_margin); 194 } 195 ret += __callchain__fprintf_graph(fp, child, new_total, 196 depth + 1, 197 new_depth_mask | (1 << depth), 198 left_margin); 199 node = next; 200 } 201 202 if (callchain_param.mode == CHAIN_GRAPH_REL && 203 remaining && remaining != new_total) { 204 205 if (!rem_sq_bracket) 206 return ret; 207 208 new_depth_mask &= ~(1 << (depth - 1)); 209 210 ret += ipchain__fprintf_graph(fp, &rem_hits, depth, 211 new_depth_mask, 0, new_total, 212 remaining, left_margin); 213 } 214 215 return ret; 216 } 217 218 219 static size_t 220 callchain__fprintf_graph(FILE *fp, struct callchain_node *self, 221 u64 total_samples, int left_margin) 222 { 223 struct callchain_list *chain; 224 bool printed = false; 225 int i = 0; 226 int ret = 0; 227 228 list_for_each_entry(chain, &self->val, list) { 229 if (chain->ip >= PERF_CONTEXT_MAX) 230 continue; 231 232 if (!i++ && sort__first_dimension == SORT_SYM) 233 continue; 234 235 if (!printed) { 236 ret += callchain__fprintf_left_margin(fp, left_margin); 237 ret += fprintf(fp, "|\n"); 238 ret += callchain__fprintf_left_margin(fp, left_margin); 239 ret += fprintf(fp, "---"); 240 241 left_margin += 3; 242 printed = true; 243 } else 244 ret += callchain__fprintf_left_margin(fp, left_margin); 245 246 if (chain->sym) 247 ret += fprintf(fp, " %s\n", chain->sym->name); 248 else 249 ret += fprintf(fp, " %p\n", (void *)(long)chain->ip); 250 } 251 252 ret += __callchain__fprintf_graph(fp, self, total_samples, 1, 1, left_margin); 253 254 return ret; 255 } 256 257 static size_t 258 callchain__fprintf_flat(FILE *fp, struct callchain_node *self, 259 u64 total_samples) 260 { 261 struct callchain_list *chain; 262 size_t ret = 0; 263 264 if (!self) 265 return 0; 266 267 ret += callchain__fprintf_flat(fp, self->parent, total_samples); 268 269 270 list_for_each_entry(chain, &self->val, list) { 271 if (chain->ip >= PERF_CONTEXT_MAX) 272 continue; 273 if (chain->sym) 274 ret += fprintf(fp, " %s\n", chain->sym->name); 275 else 276 ret += fprintf(fp, " %p\n", 277 (void *)(long)chain->ip); 278 } 279 280 return ret; 281 } 282 283 static size_t 284 hist_entry_callchain__fprintf(FILE *fp, struct hist_entry *self, 285 u64 total_samples, int left_margin) 286 { 287 struct rb_node *rb_node; 288 struct callchain_node *chain; 289 size_t ret = 0; 290 291 rb_node = rb_first(&self->sorted_chain); 292 while (rb_node) { 293 double percent; 294 295 chain = rb_entry(rb_node, struct callchain_node, rb_node); 296 percent = chain->hit * 100.0 / total_samples; 297 switch (callchain_param.mode) { 298 case CHAIN_FLAT: 299 ret += percent_color_fprintf(fp, " %6.2f%%\n", 300 percent); 301 ret += callchain__fprintf_flat(fp, chain, total_samples); 302 break; 303 case CHAIN_GRAPH_ABS: /* Falldown */ 304 case CHAIN_GRAPH_REL: 305 ret += callchain__fprintf_graph(fp, chain, total_samples, 306 left_margin); 307 case CHAIN_NONE: 308 default: 309 break; 310 } 311 ret += fprintf(fp, "\n"); 312 rb_node = rb_next(rb_node); 313 } 314 315 return ret; 316 } 317 318 static size_t 319 hist_entry__fprintf(FILE *fp, struct hist_entry *self, u64 total_samples) 320 { 321 struct sort_entry *se; 322 size_t ret; 323 324 if (exclude_other && !self->parent) 325 return 0; 326 327 if (total_samples) 328 ret = percent_color_fprintf(fp, 329 field_sep ? "%.2f" : " %6.2f%%", 330 (self->count * 100.0) / total_samples); 331 else 332 ret = fprintf(fp, field_sep ? "%lld" : "%12lld ", self->count); 333 334 if (show_nr_samples) { 335 if (field_sep) 336 fprintf(fp, "%c%lld", *field_sep, self->count); 337 else 338 fprintf(fp, "%11lld", self->count); 339 } 340 341 list_for_each_entry(se, &hist_entry__sort_list, list) { 342 if (se->elide) 343 continue; 344 345 fprintf(fp, "%s", field_sep ?: " "); 346 ret += se->print(fp, self, se->width ? *se->width : 0); 347 } 348 349 ret += fprintf(fp, "\n"); 350 351 if (callchain) { 352 int left_margin = 0; 353 354 if (sort__first_dimension == SORT_COMM) { 355 se = list_first_entry(&hist_entry__sort_list, typeof(*se), 356 list); 357 left_margin = se->width ? *se->width : 0; 358 left_margin -= thread__comm_len(self->thread); 359 } 360 361 hist_entry_callchain__fprintf(fp, self, total_samples, 362 left_margin); 363 } 364 365 return ret; 366 } 367 368 /* 369 * 370 */ 371 372 static void dso__calc_col_width(struct dso *self) 373 { 374 if (!col_width_list_str && !field_sep && 375 (!dso_list || strlist__has_entry(dso_list, self->name))) { 376 unsigned int slen = strlen(self->name); 377 if (slen > dsos__col_width) 378 dsos__col_width = slen; 379 } 380 381 self->slen_calculated = 1; 382 } 383 384 static void thread__comm_adjust(struct thread *self) 385 { 386 char *comm = self->comm; 387 388 if (!col_width_list_str && !field_sep && 389 (!comm_list || strlist__has_entry(comm_list, comm))) { 390 unsigned int slen = strlen(comm); 391 392 if (slen > comms__col_width) { 393 comms__col_width = slen; 394 threads__col_width = slen + 6; 395 } 396 } 397 } 398 399 static int thread__set_comm_adjust(struct thread *self, const char *comm) 400 { 401 int ret = thread__set_comm(self, comm); 402 403 if (ret) 404 return ret; 405 406 thread__comm_adjust(self); 407 408 return 0; 409 } 410 411 static int call__match(struct symbol *sym) 412 { 413 if (sym->name && !regexec(&parent_regex, sym->name, 0, NULL, 0)) 414 return 1; 415 416 return 0; 417 } 418 419 static struct symbol **resolve_callchain(struct thread *thread, 420 struct ip_callchain *chain, 421 struct symbol **parent) 422 { 423 u8 cpumode = PERF_RECORD_MISC_USER; 424 struct symbol **syms = NULL; 425 unsigned int i; 426 427 if (callchain) { 428 syms = calloc(chain->nr, sizeof(*syms)); 429 if (!syms) { 430 fprintf(stderr, "Can't allocate memory for symbols\n"); 431 exit(-1); 432 } 433 } 434 435 for (i = 0; i < chain->nr; i++) { 436 u64 ip = chain->ips[i]; 437 struct addr_location al; 438 439 if (ip >= PERF_CONTEXT_MAX) { 440 switch (ip) { 441 case PERF_CONTEXT_HV: 442 cpumode = PERF_RECORD_MISC_HYPERVISOR; break; 443 case PERF_CONTEXT_KERNEL: 444 cpumode = PERF_RECORD_MISC_KERNEL; break; 445 case PERF_CONTEXT_USER: 446 cpumode = PERF_RECORD_MISC_USER; break; 447 default: 448 break; 449 } 450 continue; 451 } 452 453 thread__find_addr_location(thread, cpumode, MAP__FUNCTION, 454 ip, &al, NULL); 455 if (al.sym != NULL) { 456 if (sort__has_parent && !*parent && 457 call__match(al.sym)) 458 *parent = al.sym; 459 if (!callchain) 460 break; 461 syms[i] = al.sym; 462 } 463 } 464 465 return syms; 466 } 467 468 /* 469 * collect histogram counts 470 */ 471 472 static int hist_entry__add(struct addr_location *al, 473 struct ip_callchain *chain, u64 count) 474 { 475 struct symbol **syms = NULL, *parent = NULL; 476 bool hit; 477 struct hist_entry *he; 478 479 if ((sort__has_parent || callchain) && chain) 480 syms = resolve_callchain(al->thread, chain, &parent); 481 482 he = __hist_entry__add(al, parent, count, &hit); 483 if (he == NULL) 484 return -ENOMEM; 485 486 if (hit) 487 he->count += count; 488 489 if (callchain) { 490 if (!hit) 491 callchain_init(&he->callchain); 492 append_chain(&he->callchain, chain, syms); 493 free(syms); 494 } 495 496 return 0; 497 } 498 499 static size_t output__fprintf(FILE *fp, u64 total_samples) 500 { 501 struct hist_entry *pos; 502 struct sort_entry *se; 503 struct rb_node *nd; 504 size_t ret = 0; 505 unsigned int width; 506 char *col_width = col_width_list_str; 507 int raw_printing_style; 508 509 raw_printing_style = !strcmp(pretty_printing_style, "raw"); 510 511 init_rem_hits(); 512 513 fprintf(fp, "# Samples: %Ld\n", (u64)total_samples); 514 fprintf(fp, "#\n"); 515 516 fprintf(fp, "# Overhead"); 517 if (show_nr_samples) { 518 if (field_sep) 519 fprintf(fp, "%cSamples", *field_sep); 520 else 521 fputs(" Samples ", fp); 522 } 523 list_for_each_entry(se, &hist_entry__sort_list, list) { 524 if (se->elide) 525 continue; 526 if (field_sep) { 527 fprintf(fp, "%c%s", *field_sep, se->header); 528 continue; 529 } 530 width = strlen(se->header); 531 if (se->width) { 532 if (col_width_list_str) { 533 if (col_width) { 534 *se->width = atoi(col_width); 535 col_width = strchr(col_width, ','); 536 if (col_width) 537 ++col_width; 538 } 539 } 540 width = *se->width = max(*se->width, width); 541 } 542 fprintf(fp, " %*s", width, se->header); 543 } 544 fprintf(fp, "\n"); 545 546 if (field_sep) 547 goto print_entries; 548 549 fprintf(fp, "# ........"); 550 if (show_nr_samples) 551 fprintf(fp, " .........."); 552 list_for_each_entry(se, &hist_entry__sort_list, list) { 553 unsigned int i; 554 555 if (se->elide) 556 continue; 557 558 fprintf(fp, " "); 559 if (se->width) 560 width = *se->width; 561 else 562 width = strlen(se->header); 563 for (i = 0; i < width; i++) 564 fprintf(fp, "."); 565 } 566 fprintf(fp, "\n"); 567 568 fprintf(fp, "#\n"); 569 570 print_entries: 571 for (nd = rb_first(&output_hists); nd; nd = rb_next(nd)) { 572 pos = rb_entry(nd, struct hist_entry, rb_node); 573 ret += hist_entry__fprintf(fp, pos, total_samples); 574 } 575 576 if (sort_order == default_sort_order && 577 parent_pattern == default_parent_pattern) { 578 fprintf(fp, "#\n"); 579 fprintf(fp, "# (For a higher level overview, try: perf report --sort comm,dso)\n"); 580 fprintf(fp, "#\n"); 581 } 582 fprintf(fp, "\n"); 583 584 free(rem_sq_bracket); 585 586 if (show_threads) 587 perf_read_values_display(fp, &show_threads_values, 588 raw_printing_style); 589 590 return ret; 591 } 592 593 static int validate_chain(struct ip_callchain *chain, event_t *event) 594 { 595 unsigned int chain_size; 596 597 chain_size = event->header.size; 598 chain_size -= (unsigned long)&event->ip.__more_data - (unsigned long)event; 599 600 if (chain->nr*sizeof(u64) > chain_size) 601 return -1; 602 603 return 0; 604 } 605 606 static int process_sample_event(event_t *event) 607 { 608 u64 ip = event->ip.ip; 609 u64 period = 1; 610 void *more_data = event->ip.__more_data; 611 struct ip_callchain *chain = NULL; 612 int cpumode; 613 struct addr_location al; 614 struct thread *thread = threads__findnew(event->ip.pid); 615 616 if (sample_type & PERF_SAMPLE_PERIOD) { 617 period = *(u64 *)more_data; 618 more_data += sizeof(u64); 619 } 620 621 dump_printf("(IP, %d): %d/%d: %p period: %Ld\n", 622 event->header.misc, 623 event->ip.pid, event->ip.tid, 624 (void *)(long)ip, 625 (long long)period); 626 627 if (sample_type & PERF_SAMPLE_CALLCHAIN) { 628 unsigned int i; 629 630 chain = (void *)more_data; 631 632 dump_printf("... chain: nr:%Lu\n", chain->nr); 633 634 if (validate_chain(chain, event) < 0) { 635 pr_debug("call-chain problem with event, " 636 "skipping it.\n"); 637 return 0; 638 } 639 640 if (dump_trace) { 641 for (i = 0; i < chain->nr; i++) 642 dump_printf("..... %2d: %016Lx\n", i, chain->ips[i]); 643 } 644 } 645 646 if (thread == NULL) { 647 pr_debug("problem processing %d event, skipping it.\n", 648 event->header.type); 649 return -1; 650 } 651 652 dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid); 653 654 if (comm_list && !strlist__has_entry(comm_list, thread->comm)) 655 return 0; 656 657 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; 658 659 thread__find_addr_location(thread, cpumode, 660 MAP__FUNCTION, ip, &al, NULL); 661 /* 662 * We have to do this here as we may have a dso with no symbol hit that 663 * has a name longer than the ones with symbols sampled. 664 */ 665 if (al.map && !sort_dso.elide && !al.map->dso->slen_calculated) 666 dso__calc_col_width(al.map->dso); 667 668 if (dso_list && 669 (!al.map || !al.map->dso || 670 !(strlist__has_entry(dso_list, al.map->dso->short_name) || 671 (al.map->dso->short_name != al.map->dso->long_name && 672 strlist__has_entry(dso_list, al.map->dso->long_name))))) 673 return 0; 674 675 if (sym_list && al.sym && !strlist__has_entry(sym_list, al.sym->name)) 676 return 0; 677 678 if (hist_entry__add(&al, chain, period)) { 679 pr_debug("problem incrementing symbol count, skipping event\n"); 680 return -1; 681 } 682 683 event__stats.total += period; 684 685 return 0; 686 } 687 688 static int process_comm_event(event_t *event) 689 { 690 struct thread *thread = threads__findnew(event->comm.pid); 691 692 dump_printf(": %s:%d\n", event->comm.comm, event->comm.pid); 693 694 if (thread == NULL || 695 thread__set_comm_adjust(thread, event->comm.comm)) { 696 dump_printf("problem processing PERF_RECORD_COMM, skipping event.\n"); 697 return -1; 698 } 699 700 return 0; 701 } 702 703 static int process_read_event(event_t *event) 704 { 705 struct perf_event_attr *attr; 706 707 attr = perf_header__find_attr(event->read.id, header); 708 709 if (show_threads) { 710 const char *name = attr ? __event_name(attr->type, attr->config) 711 : "unknown"; 712 perf_read_values_add_value(&show_threads_values, 713 event->read.pid, event->read.tid, 714 event->read.id, 715 name, 716 event->read.value); 717 } 718 719 dump_printf(": %d %d %s %Lu\n", event->read.pid, event->read.tid, 720 attr ? __event_name(attr->type, attr->config) : "FAIL", 721 event->read.value); 722 723 return 0; 724 } 725 726 static int sample_type_check(u64 type) 727 { 728 sample_type = type; 729 730 if (!(sample_type & PERF_SAMPLE_CALLCHAIN)) { 731 if (sort__has_parent) { 732 fprintf(stderr, "selected --sort parent, but no" 733 " callchain data. Did you call" 734 " perf record without -g?\n"); 735 return -1; 736 } 737 if (callchain) { 738 fprintf(stderr, "selected -g but no callchain data." 739 " Did you call perf record without" 740 " -g?\n"); 741 return -1; 742 } 743 } else if (callchain_param.mode != CHAIN_NONE && !callchain) { 744 callchain = 1; 745 if (register_callchain_param(&callchain_param) < 0) { 746 fprintf(stderr, "Can't register callchain" 747 " params\n"); 748 return -1; 749 } 750 } 751 752 return 0; 753 } 754 755 static struct perf_file_handler file_handler = { 756 .process_sample_event = process_sample_event, 757 .process_mmap_event = event__process_mmap, 758 .process_comm_event = process_comm_event, 759 .process_exit_event = event__process_task, 760 .process_fork_event = event__process_task, 761 .process_lost_event = event__process_lost, 762 .process_read_event = process_read_event, 763 .sample_type_check = sample_type_check, 764 }; 765 766 767 static int __cmd_report(void) 768 { 769 struct thread *idle; 770 int ret; 771 772 idle = register_idle_thread(); 773 thread__comm_adjust(idle); 774 775 if (show_threads) 776 perf_read_values_init(&show_threads_values); 777 778 register_perf_file_handler(&file_handler); 779 780 ret = mmap_dispatch_perf_file(&header, input_name, force, 781 full_paths, &event__cwdlen, &event__cwd); 782 if (ret) 783 return ret; 784 785 if (dump_trace) { 786 event__print_totals(); 787 return 0; 788 } 789 790 if (verbose > 3) 791 threads__fprintf(stdout); 792 793 if (verbose > 2) 794 dsos__fprintf(stdout); 795 796 collapse__resort(); 797 output__resort(event__stats.total); 798 output__fprintf(stdout, event__stats.total); 799 800 if (show_threads) 801 perf_read_values_destroy(&show_threads_values); 802 803 return ret; 804 } 805 806 static int 807 parse_callchain_opt(const struct option *opt __used, const char *arg, 808 int unset __used) 809 { 810 char *tok; 811 char *endptr; 812 813 callchain = 1; 814 815 if (!arg) 816 return 0; 817 818 tok = strtok((char *)arg, ","); 819 if (!tok) 820 return -1; 821 822 /* get the output mode */ 823 if (!strncmp(tok, "graph", strlen(arg))) 824 callchain_param.mode = CHAIN_GRAPH_ABS; 825 826 else if (!strncmp(tok, "flat", strlen(arg))) 827 callchain_param.mode = CHAIN_FLAT; 828 829 else if (!strncmp(tok, "fractal", strlen(arg))) 830 callchain_param.mode = CHAIN_GRAPH_REL; 831 832 else if (!strncmp(tok, "none", strlen(arg))) { 833 callchain_param.mode = CHAIN_NONE; 834 callchain = 0; 835 836 return 0; 837 } 838 839 else 840 return -1; 841 842 /* get the min percentage */ 843 tok = strtok(NULL, ","); 844 if (!tok) 845 goto setup; 846 847 callchain_param.min_percent = strtod(tok, &endptr); 848 if (tok == endptr) 849 return -1; 850 851 setup: 852 if (register_callchain_param(&callchain_param) < 0) { 853 fprintf(stderr, "Can't register callchain params\n"); 854 return -1; 855 } 856 return 0; 857 } 858 859 //static const char * const report_usage[] = { 860 const char * const report_usage[] = { 861 "perf report [<options>] <command>", 862 NULL 863 }; 864 865 static const struct option options[] = { 866 OPT_STRING('i', "input", &input_name, "file", 867 "input file name"), 868 OPT_BOOLEAN('v', "verbose", &verbose, 869 "be more verbose (show symbol address, etc)"), 870 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, 871 "dump raw trace in ASCII"), 872 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, 873 "file", "vmlinux pathname"), 874 OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), 875 OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules, 876 "load module symbols - WARNING: use only with -k and LIVE kernel"), 877 OPT_BOOLEAN('n', "show-nr-samples", &show_nr_samples, 878 "Show a column with the number of samples"), 879 OPT_BOOLEAN('T', "threads", &show_threads, 880 "Show per-thread event counters"), 881 OPT_STRING(0, "pretty", &pretty_printing_style, "key", 882 "pretty printing style key: normal raw"), 883 OPT_STRING('s', "sort", &sort_order, "key[,key2...]", 884 "sort by key(s): pid, comm, dso, symbol, parent"), 885 OPT_BOOLEAN('P', "full-paths", &full_paths, 886 "Don't shorten the pathnames taking into account the cwd"), 887 OPT_STRING('p', "parent", &parent_pattern, "regex", 888 "regex filter to identify parent, see: '--sort parent'"), 889 OPT_BOOLEAN('x', "exclude-other", &exclude_other, 890 "Only display entries with parent-match"), 891 OPT_CALLBACK_DEFAULT('g', "call-graph", NULL, "output_type,min_percent", 892 "Display callchains using output_type and min percent threshold. " 893 "Default: fractal,0.5", &parse_callchain_opt, callchain_default_opt), 894 OPT_STRING('d', "dsos", &dso_list_str, "dso[,dso...]", 895 "only consider symbols in these dsos"), 896 OPT_STRING('C', "comms", &comm_list_str, "comm[,comm...]", 897 "only consider symbols in these comms"), 898 OPT_STRING('S', "symbols", &sym_list_str, "symbol[,symbol...]", 899 "only consider these symbols"), 900 OPT_STRING('w', "column-widths", &col_width_list_str, 901 "width[,width...]", 902 "don't try to adjust column width, use these fixed values"), 903 OPT_STRING('t', "field-separator", &field_sep, "separator", 904 "separator for columns, no spaces will be added between " 905 "columns '.' is reserved."), 906 OPT_END() 907 }; 908 909 static void setup_sorting(void) 910 { 911 char *tmp, *tok, *str = strdup(sort_order); 912 913 for (tok = strtok_r(str, ", ", &tmp); 914 tok; tok = strtok_r(NULL, ", ", &tmp)) { 915 if (sort_dimension__add(tok) < 0) { 916 error("Unknown --sort key: `%s'", tok); 917 usage_with_options(report_usage, options); 918 } 919 } 920 921 free(str); 922 } 923 924 static void setup_list(struct strlist **list, const char *list_str, 925 struct sort_entry *se, const char *list_name, 926 FILE *fp) 927 { 928 if (list_str) { 929 *list = strlist__new(true, list_str); 930 if (!*list) { 931 fprintf(stderr, "problems parsing %s list\n", 932 list_name); 933 exit(129); 934 } 935 if (strlist__nr_entries(*list) == 1) { 936 fprintf(fp, "# %s: %s\n", list_name, 937 strlist__entry(*list, 0)->s); 938 se->elide = true; 939 } 940 } 941 } 942 943 int cmd_report(int argc, const char **argv, const char *prefix __used) 944 { 945 if (symbol__init(&symbol_conf) < 0) 946 return -1; 947 948 argc = parse_options(argc, argv, options, report_usage, 0); 949 950 setup_sorting(); 951 952 if (parent_pattern != default_parent_pattern) { 953 sort_dimension__add("parent"); 954 sort_parent.elide = 1; 955 } else 956 exclude_other = 0; 957 958 /* 959 * Any (unrecognized) arguments left? 960 */ 961 if (argc) 962 usage_with_options(report_usage, options); 963 964 setup_pager(); 965 966 setup_list(&dso_list, dso_list_str, &sort_dso, "dso", stdout); 967 setup_list(&comm_list, comm_list_str, &sort_comm, "comm", stdout); 968 setup_list(&sym_list, sym_list_str, &sort_sym, "symbol", stdout); 969 970 if (field_sep && *field_sep == '.') { 971 fputs("'.' is the only non valid --field-separator argument\n", 972 stderr); 973 exit(129); 974 } 975 976 return __cmd_report(); 977 } 978