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 #include "util/cache.h" 12 13 #include "util/annotate.h" 14 #include "util/color.h" 15 #include <linux/list.h> 16 #include <linux/rbtree.h> 17 #include "util/symbol.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/evlist.h" 25 #include "util/evsel.h" 26 #include "util/header.h" 27 #include "util/session.h" 28 #include "util/tool.h" 29 30 #include <subcmd/parse-options.h> 31 #include "util/parse-events.h" 32 33 #include "util/thread.h" 34 #include "util/sort.h" 35 #include "util/hist.h" 36 #include "util/data.h" 37 #include "arch/common.h" 38 39 #include "util/auxtrace.h" 40 41 #include <dlfcn.h> 42 #include <linux/bitmap.h> 43 44 struct report { 45 struct perf_tool tool; 46 struct perf_session *session; 47 bool use_tui, use_gtk, use_stdio; 48 bool dont_use_callchains; 49 bool show_full_info; 50 bool show_threads; 51 bool inverted_callchain; 52 bool mem_mode; 53 bool header; 54 bool header_only; 55 bool nonany_branch_mode; 56 int max_stack; 57 struct perf_read_values show_threads_values; 58 const char *pretty_printing_style; 59 const char *cpu_list; 60 const char *symbol_filter_str; 61 float min_percent; 62 u64 nr_entries; 63 u64 queue_size; 64 int socket_filter; 65 DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); 66 }; 67 68 static int report__config(const char *var, const char *value, void *cb) 69 { 70 struct report *rep = cb; 71 72 if (!strcmp(var, "report.group")) { 73 symbol_conf.event_group = perf_config_bool(var, value); 74 return 0; 75 } 76 if (!strcmp(var, "report.percent-limit")) { 77 rep->min_percent = strtof(value, NULL); 78 return 0; 79 } 80 if (!strcmp(var, "report.children")) { 81 symbol_conf.cumulate_callchain = perf_config_bool(var, value); 82 return 0; 83 } 84 if (!strcmp(var, "report.queue-size")) { 85 rep->queue_size = perf_config_u64(var, value); 86 return 0; 87 } 88 89 return perf_default_config(var, value, cb); 90 } 91 92 static int hist_iter__report_callback(struct hist_entry_iter *iter, 93 struct addr_location *al, bool single, 94 void *arg) 95 { 96 int err = 0; 97 struct report *rep = arg; 98 struct hist_entry *he = iter->he; 99 struct perf_evsel *evsel = iter->evsel; 100 struct mem_info *mi; 101 struct branch_info *bi; 102 103 if (!ui__has_annotation()) 104 return 0; 105 106 hist__account_cycles(iter->sample->branch_stack, al, iter->sample, 107 rep->nonany_branch_mode); 108 109 if (sort__mode == SORT_MODE__BRANCH) { 110 bi = he->branch_info; 111 err = addr_map_symbol__inc_samples(&bi->from, evsel->idx); 112 if (err) 113 goto out; 114 115 err = addr_map_symbol__inc_samples(&bi->to, evsel->idx); 116 117 } else if (rep->mem_mode) { 118 mi = he->mem_info; 119 err = addr_map_symbol__inc_samples(&mi->daddr, evsel->idx); 120 if (err) 121 goto out; 122 123 err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr); 124 125 } else if (symbol_conf.cumulate_callchain) { 126 if (single) 127 err = hist_entry__inc_addr_samples(he, evsel->idx, 128 al->addr); 129 } else { 130 err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr); 131 } 132 133 out: 134 return err; 135 } 136 137 static int process_sample_event(struct perf_tool *tool, 138 union perf_event *event, 139 struct perf_sample *sample, 140 struct perf_evsel *evsel, 141 struct machine *machine) 142 { 143 struct report *rep = container_of(tool, struct report, tool); 144 struct addr_location al; 145 struct hist_entry_iter iter = { 146 .evsel = evsel, 147 .sample = sample, 148 .hide_unresolved = symbol_conf.hide_unresolved, 149 .add_entry_cb = hist_iter__report_callback, 150 }; 151 int ret = 0; 152 153 if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) { 154 pr_debug("problem processing %d event, skipping it.\n", 155 event->header.type); 156 return -1; 157 } 158 159 if (symbol_conf.hide_unresolved && al.sym == NULL) 160 goto out_put; 161 162 if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap)) 163 goto out_put; 164 165 if (sort__mode == SORT_MODE__BRANCH) { 166 /* 167 * A non-synthesized event might not have a branch stack if 168 * branch stacks have been synthesized (using itrace options). 169 */ 170 if (!sample->branch_stack) 171 goto out_put; 172 iter.ops = &hist_iter_branch; 173 } else if (rep->mem_mode) { 174 iter.ops = &hist_iter_mem; 175 } else if (symbol_conf.cumulate_callchain) { 176 iter.ops = &hist_iter_cumulative; 177 } else { 178 iter.ops = &hist_iter_normal; 179 } 180 181 if (al.map != NULL) 182 al.map->dso->hit = 1; 183 184 ret = hist_entry_iter__add(&iter, &al, rep->max_stack, rep); 185 if (ret < 0) 186 pr_debug("problem adding hist entry, skipping event\n"); 187 out_put: 188 addr_location__put(&al); 189 return ret; 190 } 191 192 static int process_read_event(struct perf_tool *tool, 193 union perf_event *event, 194 struct perf_sample *sample __maybe_unused, 195 struct perf_evsel *evsel, 196 struct machine *machine __maybe_unused) 197 { 198 struct report *rep = container_of(tool, struct report, tool); 199 200 if (rep->show_threads) { 201 const char *name = evsel ? perf_evsel__name(evsel) : "unknown"; 202 perf_read_values_add_value(&rep->show_threads_values, 203 event->read.pid, event->read.tid, 204 event->read.id, 205 name, 206 event->read.value); 207 } 208 209 dump_printf(": %d %d %s %" PRIu64 "\n", event->read.pid, event->read.tid, 210 evsel ? perf_evsel__name(evsel) : "FAIL", 211 event->read.value); 212 213 return 0; 214 } 215 216 /* For pipe mode, sample_type is not currently set */ 217 static int report__setup_sample_type(struct report *rep) 218 { 219 struct perf_session *session = rep->session; 220 u64 sample_type = perf_evlist__combined_sample_type(session->evlist); 221 bool is_pipe = perf_data_file__is_pipe(session->file); 222 223 if (session->itrace_synth_opts->callchain || 224 (!is_pipe && 225 perf_header__has_feat(&session->header, HEADER_AUXTRACE) && 226 !session->itrace_synth_opts->set)) 227 sample_type |= PERF_SAMPLE_CALLCHAIN; 228 229 if (session->itrace_synth_opts->last_branch) 230 sample_type |= PERF_SAMPLE_BRANCH_STACK; 231 232 if (!is_pipe && !(sample_type & PERF_SAMPLE_CALLCHAIN)) { 233 if (sort__has_parent) { 234 ui__error("Selected --sort parent, but no " 235 "callchain data. Did you call " 236 "'perf record' without -g?\n"); 237 return -EINVAL; 238 } 239 if (symbol_conf.use_callchain) { 240 ui__error("Selected -g or --branch-history but no " 241 "callchain data. Did\n" 242 "you call 'perf record' without -g?\n"); 243 return -1; 244 } 245 } else if (!rep->dont_use_callchains && 246 callchain_param.mode != CHAIN_NONE && 247 !symbol_conf.use_callchain) { 248 symbol_conf.use_callchain = true; 249 if (callchain_register_param(&callchain_param) < 0) { 250 ui__error("Can't register callchain params.\n"); 251 return -EINVAL; 252 } 253 } 254 255 if (symbol_conf.cumulate_callchain) { 256 /* Silently ignore if callchain is missing */ 257 if (!(sample_type & PERF_SAMPLE_CALLCHAIN)) { 258 symbol_conf.cumulate_callchain = false; 259 perf_hpp__cancel_cumulate(); 260 } 261 } 262 263 if (sort__mode == SORT_MODE__BRANCH) { 264 if (!is_pipe && 265 !(sample_type & PERF_SAMPLE_BRANCH_STACK)) { 266 ui__error("Selected -b but no branch data. " 267 "Did you call perf record without -b?\n"); 268 return -1; 269 } 270 } 271 272 if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain) { 273 if ((sample_type & PERF_SAMPLE_REGS_USER) && 274 (sample_type & PERF_SAMPLE_STACK_USER)) 275 callchain_param.record_mode = CALLCHAIN_DWARF; 276 else if (sample_type & PERF_SAMPLE_BRANCH_STACK) 277 callchain_param.record_mode = CALLCHAIN_LBR; 278 else 279 callchain_param.record_mode = CALLCHAIN_FP; 280 } 281 282 /* ??? handle more cases than just ANY? */ 283 if (!(perf_evlist__combined_branch_type(session->evlist) & 284 PERF_SAMPLE_BRANCH_ANY)) 285 rep->nonany_branch_mode = true; 286 287 return 0; 288 } 289 290 static void sig_handler(int sig __maybe_unused) 291 { 292 session_done = 1; 293 } 294 295 static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report *rep, 296 const char *evname, FILE *fp) 297 { 298 size_t ret; 299 char unit; 300 unsigned long nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE]; 301 u64 nr_events = hists->stats.total_period; 302 struct perf_evsel *evsel = hists_to_evsel(hists); 303 char buf[512]; 304 size_t size = sizeof(buf); 305 int socked_id = hists->socket_filter; 306 307 if (symbol_conf.filter_relative) { 308 nr_samples = hists->stats.nr_non_filtered_samples; 309 nr_events = hists->stats.total_non_filtered_period; 310 } 311 312 if (perf_evsel__is_group_event(evsel)) { 313 struct perf_evsel *pos; 314 315 perf_evsel__group_desc(evsel, buf, size); 316 evname = buf; 317 318 for_each_group_member(pos, evsel) { 319 const struct hists *pos_hists = evsel__hists(pos); 320 321 if (symbol_conf.filter_relative) { 322 nr_samples += pos_hists->stats.nr_non_filtered_samples; 323 nr_events += pos_hists->stats.total_non_filtered_period; 324 } else { 325 nr_samples += pos_hists->stats.nr_events[PERF_RECORD_SAMPLE]; 326 nr_events += pos_hists->stats.total_period; 327 } 328 } 329 } 330 331 nr_samples = convert_unit(nr_samples, &unit); 332 ret = fprintf(fp, "# Samples: %lu%c", nr_samples, unit); 333 if (evname != NULL) 334 ret += fprintf(fp, " of event '%s'", evname); 335 336 if (symbol_conf.show_ref_callgraph && 337 strstr(evname, "call-graph=no")) { 338 ret += fprintf(fp, ", show reference callgraph"); 339 } 340 341 if (rep->mem_mode) { 342 ret += fprintf(fp, "\n# Total weight : %" PRIu64, nr_events); 343 ret += fprintf(fp, "\n# Sort order : %s", sort_order ? : default_mem_sort_order); 344 } else 345 ret += fprintf(fp, "\n# Event count (approx.): %" PRIu64, nr_events); 346 347 if (socked_id > -1) 348 ret += fprintf(fp, "\n# Processor Socket: %d", socked_id); 349 350 return ret + fprintf(fp, "\n#\n"); 351 } 352 353 static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist, 354 struct report *rep, 355 const char *help) 356 { 357 struct perf_evsel *pos; 358 359 fprintf(stdout, "#\n# Total Lost Samples: %" PRIu64 "\n#\n", evlist->stats.total_lost_samples); 360 evlist__for_each(evlist, pos) { 361 struct hists *hists = evsel__hists(pos); 362 const char *evname = perf_evsel__name(pos); 363 364 if (symbol_conf.event_group && 365 !perf_evsel__is_group_leader(pos)) 366 continue; 367 368 hists__fprintf_nr_sample_events(hists, rep, evname, stdout); 369 hists__fprintf(hists, true, 0, 0, rep->min_percent, stdout); 370 fprintf(stdout, "\n\n"); 371 } 372 373 if (sort_order == NULL && 374 parent_pattern == default_parent_pattern) 375 fprintf(stdout, "#\n# (%s)\n#\n", help); 376 377 if (rep->show_threads) { 378 bool style = !strcmp(rep->pretty_printing_style, "raw"); 379 perf_read_values_display(stdout, &rep->show_threads_values, 380 style); 381 perf_read_values_destroy(&rep->show_threads_values); 382 } 383 384 return 0; 385 } 386 387 static void report__warn_kptr_restrict(const struct report *rep) 388 { 389 struct map *kernel_map = machine__kernel_map(&rep->session->machines.host); 390 struct kmap *kernel_kmap = kernel_map ? map__kmap(kernel_map) : NULL; 391 392 if (kernel_map == NULL || 393 (kernel_map->dso->hit && 394 (kernel_kmap->ref_reloc_sym == NULL || 395 kernel_kmap->ref_reloc_sym->addr == 0))) { 396 const char *desc = 397 "As no suitable kallsyms nor vmlinux was found, kernel samples\n" 398 "can't be resolved."; 399 400 if (kernel_map) { 401 const struct dso *kdso = kernel_map->dso; 402 if (!RB_EMPTY_ROOT(&kdso->symbols[MAP__FUNCTION])) { 403 desc = "If some relocation was applied (e.g. " 404 "kexec) symbols may be misresolved."; 405 } 406 } 407 408 ui__warning( 409 "Kernel address maps (/proc/{kallsyms,modules}) were restricted.\n\n" 410 "Check /proc/sys/kernel/kptr_restrict before running 'perf record'.\n\n%s\n\n" 411 "Samples in kernel modules can't be resolved as well.\n\n", 412 desc); 413 } 414 } 415 416 static int report__gtk_browse_hists(struct report *rep, const char *help) 417 { 418 int (*hist_browser)(struct perf_evlist *evlist, const char *help, 419 struct hist_browser_timer *timer, float min_pcnt); 420 421 hist_browser = dlsym(perf_gtk_handle, "perf_evlist__gtk_browse_hists"); 422 423 if (hist_browser == NULL) { 424 ui__error("GTK browser not found!\n"); 425 return -1; 426 } 427 428 return hist_browser(rep->session->evlist, help, NULL, rep->min_percent); 429 } 430 431 static int report__browse_hists(struct report *rep) 432 { 433 int ret; 434 struct perf_session *session = rep->session; 435 struct perf_evlist *evlist = session->evlist; 436 const char *help = "For a higher level overview, try: perf report --sort comm,dso"; 437 438 switch (use_browser) { 439 case 1: 440 ret = perf_evlist__tui_browse_hists(evlist, help, NULL, 441 rep->min_percent, 442 &session->header.env); 443 /* 444 * Usually "ret" is the last pressed key, and we only 445 * care if the key notifies us to switch data file. 446 */ 447 if (ret != K_SWITCH_INPUT_DATA) 448 ret = 0; 449 break; 450 case 2: 451 ret = report__gtk_browse_hists(rep, help); 452 break; 453 default: 454 ret = perf_evlist__tty_browse_hists(evlist, rep, help); 455 break; 456 } 457 458 return ret; 459 } 460 461 static void report__collapse_hists(struct report *rep) 462 { 463 struct ui_progress prog; 464 struct perf_evsel *pos; 465 466 ui_progress__init(&prog, rep->nr_entries, "Merging related events..."); 467 468 evlist__for_each(rep->session->evlist, pos) { 469 struct hists *hists = evsel__hists(pos); 470 471 if (pos->idx == 0) 472 hists->symbol_filter_str = rep->symbol_filter_str; 473 474 hists->socket_filter = rep->socket_filter; 475 476 hists__collapse_resort(hists, &prog); 477 478 /* Non-group events are considered as leader */ 479 if (symbol_conf.event_group && 480 !perf_evsel__is_group_leader(pos)) { 481 struct hists *leader_hists = evsel__hists(pos->leader); 482 483 hists__match(leader_hists, hists); 484 hists__link(leader_hists, hists); 485 } 486 } 487 488 ui_progress__finish(); 489 } 490 491 static void report__output_resort(struct report *rep) 492 { 493 struct ui_progress prog; 494 struct perf_evsel *pos; 495 496 ui_progress__init(&prog, rep->nr_entries, "Sorting events for output..."); 497 498 evlist__for_each(rep->session->evlist, pos) 499 hists__output_resort(evsel__hists(pos), &prog); 500 501 ui_progress__finish(); 502 } 503 504 static int __cmd_report(struct report *rep) 505 { 506 int ret; 507 struct perf_session *session = rep->session; 508 struct perf_evsel *pos; 509 struct perf_data_file *file = session->file; 510 511 signal(SIGINT, sig_handler); 512 513 if (rep->cpu_list) { 514 ret = perf_session__cpu_bitmap(session, rep->cpu_list, 515 rep->cpu_bitmap); 516 if (ret) { 517 ui__error("failed to set cpu bitmap\n"); 518 return ret; 519 } 520 } 521 522 if (rep->show_threads) 523 perf_read_values_init(&rep->show_threads_values); 524 525 ret = report__setup_sample_type(rep); 526 if (ret) { 527 /* report__setup_sample_type() already showed error message */ 528 return ret; 529 } 530 531 ret = perf_session__process_events(session); 532 if (ret) { 533 ui__error("failed to process sample\n"); 534 return ret; 535 } 536 537 report__warn_kptr_restrict(rep); 538 539 evlist__for_each(session->evlist, pos) 540 rep->nr_entries += evsel__hists(pos)->nr_entries; 541 542 if (use_browser == 0) { 543 if (verbose > 3) 544 perf_session__fprintf(session, stdout); 545 546 if (verbose > 2) 547 perf_session__fprintf_dsos(session, stdout); 548 549 if (dump_trace) { 550 perf_session__fprintf_nr_events(session, stdout); 551 perf_evlist__fprintf_nr_events(session->evlist, stdout); 552 return 0; 553 } 554 } 555 556 report__collapse_hists(rep); 557 558 if (session_done()) 559 return 0; 560 561 /* 562 * recalculate number of entries after collapsing since it 563 * might be changed during the collapse phase. 564 */ 565 rep->nr_entries = 0; 566 evlist__for_each(session->evlist, pos) 567 rep->nr_entries += evsel__hists(pos)->nr_entries; 568 569 if (rep->nr_entries == 0) { 570 ui__error("The %s file has no samples!\n", file->path); 571 return 0; 572 } 573 574 report__output_resort(rep); 575 576 return report__browse_hists(rep); 577 } 578 579 static int 580 report_parse_callchain_opt(const struct option *opt, const char *arg, int unset) 581 { 582 struct report *rep = (struct report *)opt->value; 583 584 /* 585 * --no-call-graph 586 */ 587 if (unset) { 588 rep->dont_use_callchains = true; 589 return 0; 590 } 591 592 return parse_callchain_report_opt(arg); 593 } 594 595 int 596 report_parse_ignore_callees_opt(const struct option *opt __maybe_unused, 597 const char *arg, int unset __maybe_unused) 598 { 599 if (arg) { 600 int err = regcomp(&ignore_callees_regex, arg, REG_EXTENDED); 601 if (err) { 602 char buf[BUFSIZ]; 603 regerror(err, &ignore_callees_regex, buf, sizeof(buf)); 604 pr_err("Invalid --ignore-callees regex: %s\n%s", arg, buf); 605 return -1; 606 } 607 have_ignore_callees = 1; 608 } 609 610 return 0; 611 } 612 613 static int 614 parse_branch_mode(const struct option *opt __maybe_unused, 615 const char *str __maybe_unused, int unset) 616 { 617 int *branch_mode = opt->value; 618 619 *branch_mode = !unset; 620 return 0; 621 } 622 623 static int 624 parse_percent_limit(const struct option *opt, const char *str, 625 int unset __maybe_unused) 626 { 627 struct report *rep = opt->value; 628 629 rep->min_percent = strtof(str, NULL); 630 return 0; 631 } 632 633 #define CALLCHAIN_DEFAULT_OPT "graph,0.5,caller,function,percent" 634 635 const char report_callchain_help[] = "Display call graph (stack chain/backtrace):\n\n" 636 CALLCHAIN_REPORT_HELP 637 "\n\t\t\t\tDefault: " CALLCHAIN_DEFAULT_OPT; 638 639 int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused) 640 { 641 struct perf_session *session; 642 struct itrace_synth_opts itrace_synth_opts = { .set = 0, }; 643 struct stat st; 644 bool has_br_stack = false; 645 int branch_mode = -1; 646 bool branch_call_mode = false; 647 char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT; 648 const char * const report_usage[] = { 649 "perf report [<options>]", 650 NULL 651 }; 652 struct report report = { 653 .tool = { 654 .sample = process_sample_event, 655 .mmap = perf_event__process_mmap, 656 .mmap2 = perf_event__process_mmap2, 657 .comm = perf_event__process_comm, 658 .exit = perf_event__process_exit, 659 .fork = perf_event__process_fork, 660 .lost = perf_event__process_lost, 661 .read = process_read_event, 662 .attr = perf_event__process_attr, 663 .tracing_data = perf_event__process_tracing_data, 664 .build_id = perf_event__process_build_id, 665 .id_index = perf_event__process_id_index, 666 .auxtrace_info = perf_event__process_auxtrace_info, 667 .auxtrace = perf_event__process_auxtrace, 668 .ordered_events = true, 669 .ordering_requires_timestamps = true, 670 }, 671 .max_stack = PERF_MAX_STACK_DEPTH, 672 .pretty_printing_style = "normal", 673 .socket_filter = -1, 674 }; 675 const struct option options[] = { 676 OPT_STRING('i', "input", &input_name, "file", 677 "input file name"), 678 OPT_INCR('v', "verbose", &verbose, 679 "be more verbose (show symbol address, etc)"), 680 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, 681 "dump raw trace in ASCII"), 682 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, 683 "file", "vmlinux pathname"), 684 OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, 685 "file", "kallsyms pathname"), 686 OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"), 687 OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules, 688 "load module symbols - WARNING: use only with -k and LIVE kernel"), 689 OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, 690 "Show a column with the number of samples"), 691 OPT_BOOLEAN('T', "threads", &report.show_threads, 692 "Show per-thread event counters"), 693 OPT_STRING(0, "pretty", &report.pretty_printing_style, "key", 694 "pretty printing style key: normal raw"), 695 OPT_BOOLEAN(0, "tui", &report.use_tui, "Use the TUI interface"), 696 OPT_BOOLEAN(0, "gtk", &report.use_gtk, "Use the GTK2 interface"), 697 OPT_BOOLEAN(0, "stdio", &report.use_stdio, 698 "Use the stdio interface"), 699 OPT_BOOLEAN(0, "header", &report.header, "Show data header."), 700 OPT_BOOLEAN(0, "header-only", &report.header_only, 701 "Show only data header."), 702 OPT_STRING('s', "sort", &sort_order, "key[,key2...]", 703 "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." 704 " Please refer the man page for the complete list."), 705 OPT_STRING('F', "fields", &field_order, "key[,keys...]", 706 "output field(s): overhead, period, sample plus all of sort keys"), 707 OPT_BOOLEAN(0, "show-cpu-utilization", &symbol_conf.show_cpu_utilization, 708 "Show sample percentage for different cpu modes"), 709 OPT_BOOLEAN_FLAG(0, "showcpuutilization", &symbol_conf.show_cpu_utilization, 710 "Show sample percentage for different cpu modes", PARSE_OPT_HIDDEN), 711 OPT_STRING('p', "parent", &parent_pattern, "regex", 712 "regex filter to identify parent, see: '--sort parent'"), 713 OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other, 714 "Only display entries with parent-match"), 715 OPT_CALLBACK_DEFAULT('g', "call-graph", &report, 716 "print_type,threshold[,print_limit],order,sort_key[,branch],value", 717 report_callchain_help, &report_parse_callchain_opt, 718 callchain_default_opt), 719 OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, 720 "Accumulate callchains of children and show total overhead as well"), 721 OPT_INTEGER(0, "max-stack", &report.max_stack, 722 "Set the maximum stack depth when parsing the callchain, " 723 "anything beyond the specified depth will be ignored. " 724 "Default: " __stringify(PERF_MAX_STACK_DEPTH)), 725 OPT_BOOLEAN('G', "inverted", &report.inverted_callchain, 726 "alias for inverted call graph"), 727 OPT_CALLBACK(0, "ignore-callees", NULL, "regex", 728 "ignore callees of these functions in call graphs", 729 report_parse_ignore_callees_opt), 730 OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", 731 "only consider symbols in these dsos"), 732 OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", 733 "only consider symbols in these comms"), 734 OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]", 735 "only consider symbols in these pids"), 736 OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]", 737 "only consider symbols in these tids"), 738 OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", 739 "only consider these symbols"), 740 OPT_STRING(0, "symbol-filter", &report.symbol_filter_str, "filter", 741 "only show symbols that (partially) match with this filter"), 742 OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, 743 "width[,width...]", 744 "don't try to adjust column width, use these fixed values"), 745 OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf.field_sep, "separator", 746 "separator for columns, no spaces will be added between " 747 "columns '.' is reserved."), 748 OPT_BOOLEAN('U', "hide-unresolved", &symbol_conf.hide_unresolved, 749 "Only display entries resolved to a symbol"), 750 OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", 751 "Look for files with symbols relative to this directory"), 752 OPT_STRING('C', "cpu", &report.cpu_list, "cpu", 753 "list of cpus to profile"), 754 OPT_BOOLEAN('I', "show-info", &report.show_full_info, 755 "Display extended information about perf.data file"), 756 OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, 757 "Interleave source code with assembly code (default)"), 758 OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, 759 "Display raw encoding of assembly instructions (default)"), 760 OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", 761 "Specify disassembler style (e.g. -M intel for intel syntax)"), 762 OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, 763 "Show a column with the sum of periods"), 764 OPT_BOOLEAN(0, "group", &symbol_conf.event_group, 765 "Show event group information together"), 766 OPT_CALLBACK_NOOPT('b', "branch-stack", &branch_mode, "", 767 "use branch records for per branch histogram filling", 768 parse_branch_mode), 769 OPT_BOOLEAN(0, "branch-history", &branch_call_mode, 770 "add last branch records to call history"), 771 OPT_STRING(0, "objdump", &objdump_path, "path", 772 "objdump binary to use for disassembly and annotations"), 773 OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle, 774 "Disable symbol demangling"), 775 OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, 776 "Enable kernel symbol demangling"), 777 OPT_BOOLEAN(0, "mem-mode", &report.mem_mode, "mem access profile"), 778 OPT_CALLBACK(0, "percent-limit", &report, "percent", 779 "Don't show entries under that percent", parse_percent_limit), 780 OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", 781 "how to display percentage of filtered entries", parse_filter_percentage), 782 OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts", 783 "Instruction Tracing options", 784 itrace_parse_synth_opts), 785 OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename, 786 "Show full source file name path for source lines"), 787 OPT_BOOLEAN(0, "show-ref-call-graph", &symbol_conf.show_ref_callgraph, 788 "Show callgraph from reference event"), 789 OPT_INTEGER(0, "socket-filter", &report.socket_filter, 790 "only show processor socket that match with this filter"), 791 OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace, 792 "Show raw trace event output (do not use print fmt or plugins)"), 793 OPT_END() 794 }; 795 struct perf_data_file file = { 796 .mode = PERF_DATA_MODE_READ, 797 }; 798 int ret = hists__init(); 799 800 if (ret < 0) 801 return ret; 802 803 perf_config(report__config, &report); 804 805 argc = parse_options(argc, argv, options, report_usage, 0); 806 if (argc) { 807 /* 808 * Special case: if there's an argument left then assume that 809 * it's a symbol filter: 810 */ 811 if (argc > 1) 812 usage_with_options(report_usage, options); 813 814 report.symbol_filter_str = argv[0]; 815 } 816 817 if (symbol_conf.vmlinux_name && 818 access(symbol_conf.vmlinux_name, R_OK)) { 819 pr_err("Invalid file: %s\n", symbol_conf.vmlinux_name); 820 return -EINVAL; 821 } 822 if (symbol_conf.kallsyms_name && 823 access(symbol_conf.kallsyms_name, R_OK)) { 824 pr_err("Invalid file: %s\n", symbol_conf.kallsyms_name); 825 return -EINVAL; 826 } 827 828 if (report.use_stdio) 829 use_browser = 0; 830 else if (report.use_tui) 831 use_browser = 1; 832 else if (report.use_gtk) 833 use_browser = 2; 834 835 if (report.inverted_callchain) 836 callchain_param.order = ORDER_CALLER; 837 if (symbol_conf.cumulate_callchain && !callchain_param.order_set) 838 callchain_param.order = ORDER_CALLER; 839 840 if (itrace_synth_opts.callchain && 841 (int)itrace_synth_opts.callchain_sz > report.max_stack) 842 report.max_stack = itrace_synth_opts.callchain_sz; 843 844 if (!input_name || !strlen(input_name)) { 845 if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode)) 846 input_name = "-"; 847 else 848 input_name = "perf.data"; 849 } 850 851 file.path = input_name; 852 file.force = symbol_conf.force; 853 854 repeat: 855 session = perf_session__new(&file, false, &report.tool); 856 if (session == NULL) 857 return -1; 858 859 if (report.queue_size) { 860 ordered_events__set_alloc_size(&session->ordered_events, 861 report.queue_size); 862 } 863 864 session->itrace_synth_opts = &itrace_synth_opts; 865 866 report.session = session; 867 868 has_br_stack = perf_header__has_feat(&session->header, 869 HEADER_BRANCH_STACK); 870 871 if (itrace_synth_opts.last_branch) 872 has_br_stack = true; 873 874 /* 875 * Branch mode is a tristate: 876 * -1 means default, so decide based on the file having branch data. 877 * 0/1 means the user chose a mode. 878 */ 879 if (((branch_mode == -1 && has_br_stack) || branch_mode == 1) && 880 !branch_call_mode) { 881 sort__mode = SORT_MODE__BRANCH; 882 symbol_conf.cumulate_callchain = false; 883 } 884 if (branch_call_mode) { 885 callchain_param.key = CCKEY_ADDRESS; 886 callchain_param.branch_callstack = 1; 887 symbol_conf.use_callchain = true; 888 callchain_register_param(&callchain_param); 889 if (sort_order == NULL) 890 sort_order = "srcline,symbol,dso"; 891 } 892 893 if (report.mem_mode) { 894 if (sort__mode == SORT_MODE__BRANCH) { 895 pr_err("branch and mem mode incompatible\n"); 896 goto error; 897 } 898 sort__mode = SORT_MODE__MEMORY; 899 symbol_conf.cumulate_callchain = false; 900 } 901 902 if (setup_sorting(session->evlist) < 0) { 903 if (sort_order) 904 parse_options_usage(report_usage, options, "s", 1); 905 if (field_order) 906 parse_options_usage(sort_order ? NULL : report_usage, 907 options, "F", 1); 908 goto error; 909 } 910 911 /* Force tty output for header output and per-thread stat. */ 912 if (report.header || report.header_only || report.show_threads) 913 use_browser = 0; 914 915 if (strcmp(input_name, "-") != 0) 916 setup_browser(true); 917 else 918 use_browser = 0; 919 920 if (report.header || report.header_only) { 921 perf_session__fprintf_info(session, stdout, 922 report.show_full_info); 923 if (report.header_only) { 924 ret = 0; 925 goto error; 926 } 927 } else if (use_browser == 0) { 928 fputs("# To display the perf.data header info, please use --header/--header-only options.\n#\n", 929 stdout); 930 } 931 932 /* 933 * Only in the TUI browser we are doing integrated annotation, 934 * so don't allocate extra space that won't be used in the stdio 935 * implementation. 936 */ 937 if (ui__has_annotation()) { 938 symbol_conf.priv_size = sizeof(struct annotation); 939 machines__set_symbol_filter(&session->machines, 940 symbol__annotate_init); 941 /* 942 * For searching by name on the "Browse map details". 943 * providing it only in verbose mode not to bloat too 944 * much struct symbol. 945 */ 946 if (verbose) { 947 /* 948 * XXX: Need to provide a less kludgy way to ask for 949 * more space per symbol, the u32 is for the index on 950 * the ui browser. 951 * See symbol__browser_index. 952 */ 953 symbol_conf.priv_size += sizeof(u32); 954 symbol_conf.sort_by_name = true; 955 } 956 } 957 958 if (symbol__init(&session->header.env) < 0) 959 goto error; 960 961 sort__setup_elide(stdout); 962 963 ret = __cmd_report(&report); 964 if (ret == K_SWITCH_INPUT_DATA) { 965 perf_session__delete(session); 966 goto repeat; 967 } else 968 ret = 0; 969 970 error: 971 perf_session__delete(session); 972 return ret; 973 } 974