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