1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * builtin-report.c 4 * 5 * Builtin report command: Analyze the perf.data input file, 6 * look up and read DSOs and symbol information and display 7 * a histogram of results, along various sorting keys. 8 */ 9 #include "builtin.h" 10 11 #include "util/config.h" 12 13 #include "util/annotate.h" 14 #include "util/color.h" 15 #include "util/dso.h" 16 #include <linux/list.h> 17 #include <linux/rbtree.h> 18 #include <linux/err.h> 19 #include <linux/zalloc.h> 20 #include "util/map.h" 21 #include "util/symbol.h" 22 #include "util/map_symbol.h" 23 #include "util/mem-events.h" 24 #include "util/branch.h" 25 #include "util/callchain.h" 26 #include "util/values.h" 27 28 #include "perf.h" 29 #include "util/debug.h" 30 #include "util/evlist.h" 31 #include "util/evsel.h" 32 #include "util/evswitch.h" 33 #include "util/header.h" 34 #include "util/session.h" 35 #include "util/srcline.h" 36 #include "util/tool.h" 37 38 #include <subcmd/parse-options.h> 39 #include <subcmd/exec-cmd.h> 40 #include "util/parse-events.h" 41 42 #include "util/thread.h" 43 #include "util/sort.h" 44 #include "util/hist.h" 45 #include "util/data.h" 46 #include "arch/common.h" 47 #include "util/time-utils.h" 48 #include "util/auxtrace.h" 49 #include "util/units.h" 50 #include "util/util.h" // perf_tip() 51 #include "ui/ui.h" 52 #include "ui/progress.h" 53 #include "util/block-info.h" 54 55 #include <dlfcn.h> 56 #include <errno.h> 57 #include <inttypes.h> 58 #include <regex.h> 59 #include <linux/ctype.h> 60 #include <signal.h> 61 #include <linux/bitmap.h> 62 #include <linux/string.h> 63 #include <linux/stringify.h> 64 #include <linux/time64.h> 65 #include <sys/types.h> 66 #include <sys/stat.h> 67 #include <unistd.h> 68 #include <linux/mman.h> 69 70 struct report { 71 struct perf_tool tool; 72 struct perf_session *session; 73 struct evswitch evswitch; 74 bool use_tui, use_gtk, use_stdio; 75 bool show_full_info; 76 bool show_threads; 77 bool inverted_callchain; 78 bool mem_mode; 79 bool stats_mode; 80 bool tasks_mode; 81 bool mmaps_mode; 82 bool header; 83 bool header_only; 84 bool nonany_branch_mode; 85 bool group_set; 86 bool stitch_lbr; 87 bool disable_order; 88 int max_stack; 89 struct perf_read_values show_threads_values; 90 struct annotation_options annotation_opts; 91 const char *pretty_printing_style; 92 const char *cpu_list; 93 const char *symbol_filter_str; 94 const char *time_str; 95 struct perf_time_interval *ptime_range; 96 int range_size; 97 int range_num; 98 float min_percent; 99 u64 nr_entries; 100 u64 queue_size; 101 u64 total_cycles; 102 int socket_filter; 103 DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); 104 struct branch_type_stat brtype_stat; 105 bool symbol_ipc; 106 bool total_cycles_mode; 107 struct block_report *block_reports; 108 int nr_block_reports; 109 }; 110 111 static int report__config(const char *var, const char *value, void *cb) 112 { 113 struct report *rep = cb; 114 115 if (!strcmp(var, "report.group")) { 116 symbol_conf.event_group = perf_config_bool(var, value); 117 return 0; 118 } 119 if (!strcmp(var, "report.percent-limit")) { 120 double pcnt = strtof(value, NULL); 121 122 rep->min_percent = pcnt; 123 callchain_param.min_percent = pcnt; 124 return 0; 125 } 126 if (!strcmp(var, "report.children")) { 127 symbol_conf.cumulate_callchain = perf_config_bool(var, value); 128 return 0; 129 } 130 if (!strcmp(var, "report.queue-size")) 131 return perf_config_u64(&rep->queue_size, var, value); 132 133 if (!strcmp(var, "report.sort_order")) { 134 default_sort_order = strdup(value); 135 return 0; 136 } 137 138 return 0; 139 } 140 141 static int hist_iter__report_callback(struct hist_entry_iter *iter, 142 struct addr_location *al, bool single, 143 void *arg) 144 { 145 int err = 0; 146 struct report *rep = arg; 147 struct hist_entry *he = iter->he; 148 struct evsel *evsel = iter->evsel; 149 struct perf_sample *sample = iter->sample; 150 struct mem_info *mi; 151 struct branch_info *bi; 152 153 if (!ui__has_annotation() && !rep->symbol_ipc) 154 return 0; 155 156 if (sort__mode == SORT_MODE__BRANCH) { 157 bi = he->branch_info; 158 err = addr_map_symbol__inc_samples(&bi->from, sample, evsel); 159 if (err) 160 goto out; 161 162 err = addr_map_symbol__inc_samples(&bi->to, sample, evsel); 163 164 } else if (rep->mem_mode) { 165 mi = he->mem_info; 166 err = addr_map_symbol__inc_samples(&mi->daddr, sample, evsel); 167 if (err) 168 goto out; 169 170 err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr); 171 172 } else if (symbol_conf.cumulate_callchain) { 173 if (single) 174 err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr); 175 } else { 176 err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr); 177 } 178 179 out: 180 return err; 181 } 182 183 static int hist_iter__branch_callback(struct hist_entry_iter *iter, 184 struct addr_location *al __maybe_unused, 185 bool single __maybe_unused, 186 void *arg) 187 { 188 struct hist_entry *he = iter->he; 189 struct report *rep = arg; 190 struct branch_info *bi = he->branch_info; 191 struct perf_sample *sample = iter->sample; 192 struct evsel *evsel = iter->evsel; 193 int err; 194 195 branch_type_count(&rep->brtype_stat, &bi->flags, 196 bi->from.addr, bi->to.addr); 197 198 if (!ui__has_annotation() && !rep->symbol_ipc) 199 return 0; 200 201 err = addr_map_symbol__inc_samples(&bi->from, sample, evsel); 202 if (err) 203 goto out; 204 205 err = addr_map_symbol__inc_samples(&bi->to, sample, evsel); 206 207 out: 208 return err; 209 } 210 211 static void setup_forced_leader(struct report *report, 212 struct evlist *evlist) 213 { 214 if (report->group_set) 215 evlist__force_leader(evlist); 216 } 217 218 static int process_feature_event(struct perf_session *session, 219 union perf_event *event) 220 { 221 struct report *rep = container_of(session->tool, struct report, tool); 222 223 if (event->feat.feat_id < HEADER_LAST_FEATURE) 224 return perf_event__process_feature(session, event); 225 226 if (event->feat.feat_id != HEADER_LAST_FEATURE) { 227 pr_err("failed: wrong feature ID: %" PRI_lu64 "\n", 228 event->feat.feat_id); 229 return -1; 230 } else if (rep->header_only) { 231 session_done = 1; 232 } 233 234 /* 235 * (feat_id = HEADER_LAST_FEATURE) is the end marker which 236 * means all features are received, now we can force the 237 * group if needed. 238 */ 239 setup_forced_leader(rep, session->evlist); 240 return 0; 241 } 242 243 static int process_sample_event(struct perf_tool *tool, 244 union perf_event *event, 245 struct perf_sample *sample, 246 struct evsel *evsel, 247 struct machine *machine) 248 { 249 struct report *rep = container_of(tool, struct report, tool); 250 struct addr_location al; 251 struct hist_entry_iter iter = { 252 .evsel = evsel, 253 .sample = sample, 254 .hide_unresolved = symbol_conf.hide_unresolved, 255 .add_entry_cb = hist_iter__report_callback, 256 }; 257 int ret = 0; 258 259 if (perf_time__ranges_skip_sample(rep->ptime_range, rep->range_num, 260 sample->time)) { 261 return 0; 262 } 263 264 if (evswitch__discard(&rep->evswitch, evsel)) 265 return 0; 266 267 if (machine__resolve(machine, &al, sample) < 0) { 268 pr_debug("problem processing %d event, skipping it.\n", 269 event->header.type); 270 return -1; 271 } 272 273 if (rep->stitch_lbr) 274 al.thread->lbr_stitch_enable = true; 275 276 if (symbol_conf.hide_unresolved && al.sym == NULL) 277 goto out_put; 278 279 if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap)) 280 goto out_put; 281 282 if (sort__mode == SORT_MODE__BRANCH) { 283 /* 284 * A non-synthesized event might not have a branch stack if 285 * branch stacks have been synthesized (using itrace options). 286 */ 287 if (!sample->branch_stack) 288 goto out_put; 289 290 iter.add_entry_cb = hist_iter__branch_callback; 291 iter.ops = &hist_iter_branch; 292 } else if (rep->mem_mode) { 293 iter.ops = &hist_iter_mem; 294 } else if (symbol_conf.cumulate_callchain) { 295 iter.ops = &hist_iter_cumulative; 296 } else { 297 iter.ops = &hist_iter_normal; 298 } 299 300 if (al.map != NULL) 301 al.map->dso->hit = 1; 302 303 if (ui__has_annotation() || rep->symbol_ipc || rep->total_cycles_mode) { 304 hist__account_cycles(sample->branch_stack, &al, sample, 305 rep->nonany_branch_mode, 306 &rep->total_cycles); 307 } 308 309 ret = hist_entry_iter__add(&iter, &al, rep->max_stack, rep); 310 if (ret < 0) 311 pr_debug("problem adding hist entry, skipping event\n"); 312 out_put: 313 addr_location__put(&al); 314 return ret; 315 } 316 317 static int process_read_event(struct perf_tool *tool, 318 union perf_event *event, 319 struct perf_sample *sample __maybe_unused, 320 struct evsel *evsel, 321 struct machine *machine __maybe_unused) 322 { 323 struct report *rep = container_of(tool, struct report, tool); 324 325 if (rep->show_threads) { 326 const char *name = evsel__name(evsel); 327 int err = perf_read_values_add_value(&rep->show_threads_values, 328 event->read.pid, event->read.tid, 329 evsel->idx, 330 name, 331 event->read.value); 332 333 if (err) 334 return err; 335 } 336 337 return 0; 338 } 339 340 /* For pipe mode, sample_type is not currently set */ 341 static int report__setup_sample_type(struct report *rep) 342 { 343 struct perf_session *session = rep->session; 344 u64 sample_type = evlist__combined_sample_type(session->evlist); 345 bool is_pipe = perf_data__is_pipe(session->data); 346 347 if (session->itrace_synth_opts->callchain || 348 session->itrace_synth_opts->add_callchain || 349 (!is_pipe && 350 perf_header__has_feat(&session->header, HEADER_AUXTRACE) && 351 !session->itrace_synth_opts->set)) 352 sample_type |= PERF_SAMPLE_CALLCHAIN; 353 354 if (session->itrace_synth_opts->last_branch || 355 session->itrace_synth_opts->add_last_branch) 356 sample_type |= PERF_SAMPLE_BRANCH_STACK; 357 358 if (!is_pipe && !(sample_type & PERF_SAMPLE_CALLCHAIN)) { 359 if (perf_hpp_list.parent) { 360 ui__error("Selected --sort parent, but no " 361 "callchain data. Did you call " 362 "'perf record' without -g?\n"); 363 return -EINVAL; 364 } 365 if (symbol_conf.use_callchain && 366 !symbol_conf.show_branchflag_count) { 367 ui__error("Selected -g or --branch-history.\n" 368 "But no callchain or branch data.\n" 369 "Did you call 'perf record' without -g or -b?\n"); 370 return -1; 371 } 372 } else if (!callchain_param.enabled && 373 callchain_param.mode != CHAIN_NONE && 374 !symbol_conf.use_callchain) { 375 symbol_conf.use_callchain = true; 376 if (callchain_register_param(&callchain_param) < 0) { 377 ui__error("Can't register callchain params.\n"); 378 return -EINVAL; 379 } 380 } 381 382 if (symbol_conf.cumulate_callchain) { 383 /* Silently ignore if callchain is missing */ 384 if (!(sample_type & PERF_SAMPLE_CALLCHAIN)) { 385 symbol_conf.cumulate_callchain = false; 386 perf_hpp__cancel_cumulate(); 387 } 388 } 389 390 if (sort__mode == SORT_MODE__BRANCH) { 391 if (!is_pipe && 392 !(sample_type & PERF_SAMPLE_BRANCH_STACK)) { 393 ui__error("Selected -b but no branch data. " 394 "Did you call perf record without -b?\n"); 395 return -1; 396 } 397 } 398 399 if (sort__mode == SORT_MODE__MEMORY) { 400 if (!is_pipe && !(sample_type & PERF_SAMPLE_DATA_SRC)) { 401 ui__error("Selected --mem-mode but no mem data. " 402 "Did you call perf record without -d?\n"); 403 return -1; 404 } 405 } 406 407 callchain_param_setup(sample_type); 408 409 if (rep->stitch_lbr && (callchain_param.record_mode != CALLCHAIN_LBR)) { 410 ui__warning("Can't find LBR callchain. Switch off --stitch-lbr.\n" 411 "Please apply --call-graph lbr when recording.\n"); 412 rep->stitch_lbr = false; 413 } 414 415 /* ??? handle more cases than just ANY? */ 416 if (!(evlist__combined_branch_type(session->evlist) & PERF_SAMPLE_BRANCH_ANY)) 417 rep->nonany_branch_mode = true; 418 419 #if !defined(HAVE_LIBUNWIND_SUPPORT) && !defined(HAVE_DWARF_SUPPORT) 420 if (dwarf_callchain_users) { 421 ui__warning("Please install libunwind or libdw " 422 "development packages during the perf build.\n"); 423 } 424 #endif 425 426 return 0; 427 } 428 429 static void sig_handler(int sig __maybe_unused) 430 { 431 session_done = 1; 432 } 433 434 static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report *rep, 435 const char *evname, FILE *fp) 436 { 437 size_t ret; 438 char unit; 439 unsigned long nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE]; 440 u64 nr_events = hists->stats.total_period; 441 struct evsel *evsel = hists_to_evsel(hists); 442 char buf[512]; 443 size_t size = sizeof(buf); 444 int socked_id = hists->socket_filter; 445 446 if (quiet) 447 return 0; 448 449 if (symbol_conf.filter_relative) { 450 nr_samples = hists->stats.nr_non_filtered_samples; 451 nr_events = hists->stats.total_non_filtered_period; 452 } 453 454 if (evsel__is_group_event(evsel)) { 455 struct evsel *pos; 456 457 evsel__group_desc(evsel, buf, size); 458 evname = buf; 459 460 for_each_group_member(pos, evsel) { 461 const struct hists *pos_hists = evsel__hists(pos); 462 463 if (symbol_conf.filter_relative) { 464 nr_samples += pos_hists->stats.nr_non_filtered_samples; 465 nr_events += pos_hists->stats.total_non_filtered_period; 466 } else { 467 nr_samples += pos_hists->stats.nr_events[PERF_RECORD_SAMPLE]; 468 nr_events += pos_hists->stats.total_period; 469 } 470 } 471 } 472 473 nr_samples = convert_unit(nr_samples, &unit); 474 ret = fprintf(fp, "# Samples: %lu%c", nr_samples, unit); 475 if (evname != NULL) { 476 ret += fprintf(fp, " of event%s '%s'", 477 evsel->core.nr_members > 1 ? "s" : "", evname); 478 } 479 480 if (rep->time_str) 481 ret += fprintf(fp, " (time slices: %s)", rep->time_str); 482 483 if (symbol_conf.show_ref_callgraph && evname && strstr(evname, "call-graph=no")) { 484 ret += fprintf(fp, ", show reference callgraph"); 485 } 486 487 if (rep->mem_mode) { 488 ret += fprintf(fp, "\n# Total weight : %" PRIu64, nr_events); 489 ret += fprintf(fp, "\n# Sort order : %s", sort_order ? : default_mem_sort_order); 490 } else 491 ret += fprintf(fp, "\n# Event count (approx.): %" PRIu64, nr_events); 492 493 if (socked_id > -1) 494 ret += fprintf(fp, "\n# Processor Socket: %d", socked_id); 495 496 return ret + fprintf(fp, "\n#\n"); 497 } 498 499 static int evlist__tui_block_hists_browse(struct evlist *evlist, struct report *rep) 500 { 501 struct evsel *pos; 502 int i = 0, ret; 503 504 evlist__for_each_entry(evlist, pos) { 505 ret = report__browse_block_hists(&rep->block_reports[i++].hist, 506 rep->min_percent, pos, 507 &rep->session->header.env, 508 &rep->annotation_opts); 509 if (ret != 0) 510 return ret; 511 } 512 513 return 0; 514 } 515 516 static int evlist__tty_browse_hists(struct evlist *evlist, struct report *rep, const char *help) 517 { 518 struct evsel *pos; 519 int i = 0; 520 521 if (!quiet) { 522 fprintf(stdout, "#\n# Total Lost Samples: %" PRIu64 "\n#\n", 523 evlist->stats.total_lost_samples); 524 } 525 526 evlist__for_each_entry(evlist, pos) { 527 struct hists *hists = evsel__hists(pos); 528 const char *evname = evsel__name(pos); 529 530 if (symbol_conf.event_group && !evsel__is_group_leader(pos)) 531 continue; 532 533 hists__fprintf_nr_sample_events(hists, rep, evname, stdout); 534 535 if (rep->total_cycles_mode) { 536 report__browse_block_hists(&rep->block_reports[i++].hist, 537 rep->min_percent, pos, 538 NULL, NULL); 539 continue; 540 } 541 542 hists__fprintf(hists, !quiet, 0, 0, rep->min_percent, stdout, 543 !(symbol_conf.use_callchain || 544 symbol_conf.show_branchflag_count)); 545 fprintf(stdout, "\n\n"); 546 } 547 548 if (!quiet) 549 fprintf(stdout, "#\n# (%s)\n#\n", help); 550 551 if (rep->show_threads) { 552 bool style = !strcmp(rep->pretty_printing_style, "raw"); 553 perf_read_values_display(stdout, &rep->show_threads_values, 554 style); 555 perf_read_values_destroy(&rep->show_threads_values); 556 } 557 558 if (sort__mode == SORT_MODE__BRANCH) 559 branch_type_stat_display(stdout, &rep->brtype_stat); 560 561 return 0; 562 } 563 564 static void report__warn_kptr_restrict(const struct report *rep) 565 { 566 struct map *kernel_map = machine__kernel_map(&rep->session->machines.host); 567 struct kmap *kernel_kmap = kernel_map ? map__kmap(kernel_map) : NULL; 568 569 if (evlist__exclude_kernel(rep->session->evlist)) 570 return; 571 572 if (kernel_map == NULL || 573 (kernel_map->dso->hit && 574 (kernel_kmap->ref_reloc_sym == NULL || 575 kernel_kmap->ref_reloc_sym->addr == 0))) { 576 const char *desc = 577 "As no suitable kallsyms nor vmlinux was found, kernel samples\n" 578 "can't be resolved."; 579 580 if (kernel_map && map__has_symbols(kernel_map)) { 581 desc = "If some relocation was applied (e.g. " 582 "kexec) symbols may be misresolved."; 583 } 584 585 ui__warning( 586 "Kernel address maps (/proc/{kallsyms,modules}) were restricted.\n\n" 587 "Check /proc/sys/kernel/kptr_restrict before running 'perf record'.\n\n%s\n\n" 588 "Samples in kernel modules can't be resolved as well.\n\n", 589 desc); 590 } 591 } 592 593 static int report__gtk_browse_hists(struct report *rep, const char *help) 594 { 595 int (*hist_browser)(struct evlist *evlist, const char *help, 596 struct hist_browser_timer *timer, float min_pcnt); 597 598 hist_browser = dlsym(perf_gtk_handle, "evlist__gtk_browse_hists"); 599 600 if (hist_browser == NULL) { 601 ui__error("GTK browser not found!\n"); 602 return -1; 603 } 604 605 return hist_browser(rep->session->evlist, help, NULL, rep->min_percent); 606 } 607 608 static int report__browse_hists(struct report *rep) 609 { 610 int ret; 611 struct perf_session *session = rep->session; 612 struct evlist *evlist = session->evlist; 613 const char *help = perf_tip(system_path(TIPDIR)); 614 615 if (help == NULL) { 616 /* fallback for people who don't install perf ;-) */ 617 help = perf_tip(DOCDIR); 618 if (help == NULL) 619 help = "Cannot load tips.txt file, please install perf!"; 620 } 621 622 switch (use_browser) { 623 case 1: 624 if (rep->total_cycles_mode) { 625 ret = evlist__tui_block_hists_browse(evlist, rep); 626 break; 627 } 628 629 ret = evlist__tui_browse_hists(evlist, help, NULL, rep->min_percent, 630 &session->header.env, true, &rep->annotation_opts); 631 /* 632 * Usually "ret" is the last pressed key, and we only 633 * care if the key notifies us to switch data file. 634 */ 635 if (ret != K_SWITCH_INPUT_DATA && ret != K_RELOAD) 636 ret = 0; 637 break; 638 case 2: 639 ret = report__gtk_browse_hists(rep, help); 640 break; 641 default: 642 ret = evlist__tty_browse_hists(evlist, rep, help); 643 break; 644 } 645 646 return ret; 647 } 648 649 static int report__collapse_hists(struct report *rep) 650 { 651 struct ui_progress prog; 652 struct evsel *pos; 653 int ret = 0; 654 655 ui_progress__init(&prog, rep->nr_entries, "Merging related events..."); 656 657 evlist__for_each_entry(rep->session->evlist, pos) { 658 struct hists *hists = evsel__hists(pos); 659 660 if (pos->idx == 0) 661 hists->symbol_filter_str = rep->symbol_filter_str; 662 663 hists->socket_filter = rep->socket_filter; 664 665 ret = hists__collapse_resort(hists, &prog); 666 if (ret < 0) 667 break; 668 669 /* Non-group events are considered as leader */ 670 if (symbol_conf.event_group && !evsel__is_group_leader(pos)) { 671 struct hists *leader_hists = evsel__hists(pos->leader); 672 673 hists__match(leader_hists, hists); 674 hists__link(leader_hists, hists); 675 } 676 } 677 678 ui_progress__finish(); 679 return ret; 680 } 681 682 static int hists__resort_cb(struct hist_entry *he, void *arg) 683 { 684 struct report *rep = arg; 685 struct symbol *sym = he->ms.sym; 686 687 if (rep->symbol_ipc && sym && !sym->annotate2) { 688 struct evsel *evsel = hists_to_evsel(he->hists); 689 690 symbol__annotate2(&he->ms, evsel, 691 &annotation__default_options, NULL); 692 } 693 694 return 0; 695 } 696 697 static void report__output_resort(struct report *rep) 698 { 699 struct ui_progress prog; 700 struct evsel *pos; 701 702 ui_progress__init(&prog, rep->nr_entries, "Sorting events for output..."); 703 704 evlist__for_each_entry(rep->session->evlist, pos) { 705 evsel__output_resort_cb(pos, &prog, hists__resort_cb, rep); 706 } 707 708 ui_progress__finish(); 709 } 710 711 static void stats_setup(struct report *rep) 712 { 713 memset(&rep->tool, 0, sizeof(rep->tool)); 714 rep->tool.no_warn = true; 715 } 716 717 static int stats_print(struct report *rep) 718 { 719 struct perf_session *session = rep->session; 720 721 perf_session__fprintf_nr_events(session, stdout); 722 return 0; 723 } 724 725 static void tasks_setup(struct report *rep) 726 { 727 memset(&rep->tool, 0, sizeof(rep->tool)); 728 rep->tool.ordered_events = true; 729 if (rep->mmaps_mode) { 730 rep->tool.mmap = perf_event__process_mmap; 731 rep->tool.mmap2 = perf_event__process_mmap2; 732 } 733 rep->tool.comm = perf_event__process_comm; 734 rep->tool.exit = perf_event__process_exit; 735 rep->tool.fork = perf_event__process_fork; 736 rep->tool.no_warn = true; 737 } 738 739 struct task { 740 struct thread *thread; 741 struct list_head list; 742 struct list_head children; 743 }; 744 745 static struct task *tasks_list(struct task *task, struct machine *machine) 746 { 747 struct thread *parent_thread, *thread = task->thread; 748 struct task *parent_task; 749 750 /* Already listed. */ 751 if (!list_empty(&task->list)) 752 return NULL; 753 754 /* Last one in the chain. */ 755 if (thread->ppid == -1) 756 return task; 757 758 parent_thread = machine__find_thread(machine, -1, thread->ppid); 759 if (!parent_thread) 760 return ERR_PTR(-ENOENT); 761 762 parent_task = thread__priv(parent_thread); 763 list_add_tail(&task->list, &parent_task->children); 764 return tasks_list(parent_task, machine); 765 } 766 767 static size_t maps__fprintf_task(struct maps *maps, int indent, FILE *fp) 768 { 769 size_t printed = 0; 770 struct map *map; 771 772 maps__for_each_entry(maps, map) { 773 printed += fprintf(fp, "%*s %" PRIx64 "-%" PRIx64 " %c%c%c%c %08" PRIx64 " %" PRIu64 " %s\n", 774 indent, "", map->start, map->end, 775 map->prot & PROT_READ ? 'r' : '-', 776 map->prot & PROT_WRITE ? 'w' : '-', 777 map->prot & PROT_EXEC ? 'x' : '-', 778 map->flags & MAP_SHARED ? 's' : 'p', 779 map->pgoff, 780 map->dso->id.ino, map->dso->name); 781 } 782 783 return printed; 784 } 785 786 static void task__print_level(struct task *task, FILE *fp, int level) 787 { 788 struct thread *thread = task->thread; 789 struct task *child; 790 int comm_indent = fprintf(fp, " %8d %8d %8d |%*s", 791 thread->pid_, thread->tid, thread->ppid, 792 level, ""); 793 794 fprintf(fp, "%s\n", thread__comm_str(thread)); 795 796 maps__fprintf_task(thread->maps, comm_indent, fp); 797 798 if (!list_empty(&task->children)) { 799 list_for_each_entry(child, &task->children, list) 800 task__print_level(child, fp, level + 1); 801 } 802 } 803 804 static int tasks_print(struct report *rep, FILE *fp) 805 { 806 struct perf_session *session = rep->session; 807 struct machine *machine = &session->machines.host; 808 struct task *tasks, *task; 809 unsigned int nr = 0, itask = 0, i; 810 struct rb_node *nd; 811 LIST_HEAD(list); 812 813 /* 814 * No locking needed while accessing machine->threads, 815 * because --tasks is single threaded command. 816 */ 817 818 /* Count all the threads. */ 819 for (i = 0; i < THREADS__TABLE_SIZE; i++) 820 nr += machine->threads[i].nr; 821 822 tasks = malloc(sizeof(*tasks) * nr); 823 if (!tasks) 824 return -ENOMEM; 825 826 for (i = 0; i < THREADS__TABLE_SIZE; i++) { 827 struct threads *threads = &machine->threads[i]; 828 829 for (nd = rb_first_cached(&threads->entries); nd; 830 nd = rb_next(nd)) { 831 task = tasks + itask++; 832 833 task->thread = rb_entry(nd, struct thread, rb_node); 834 INIT_LIST_HEAD(&task->children); 835 INIT_LIST_HEAD(&task->list); 836 thread__set_priv(task->thread, task); 837 } 838 } 839 840 /* 841 * Iterate every task down to the unprocessed parent 842 * and link all in task children list. Task with no 843 * parent is added into 'list'. 844 */ 845 for (itask = 0; itask < nr; itask++) { 846 task = tasks + itask; 847 848 if (!list_empty(&task->list)) 849 continue; 850 851 task = tasks_list(task, machine); 852 if (IS_ERR(task)) { 853 pr_err("Error: failed to process tasks\n"); 854 free(tasks); 855 return PTR_ERR(task); 856 } 857 858 if (task) 859 list_add_tail(&task->list, &list); 860 } 861 862 fprintf(fp, "# %8s %8s %8s %s\n", "pid", "tid", "ppid", "comm"); 863 864 list_for_each_entry(task, &list, list) 865 task__print_level(task, fp, 0); 866 867 free(tasks); 868 return 0; 869 } 870 871 static int __cmd_report(struct report *rep) 872 { 873 int ret; 874 struct perf_session *session = rep->session; 875 struct evsel *pos; 876 struct perf_data *data = session->data; 877 878 signal(SIGINT, sig_handler); 879 880 if (rep->cpu_list) { 881 ret = perf_session__cpu_bitmap(session, rep->cpu_list, 882 rep->cpu_bitmap); 883 if (ret) { 884 ui__error("failed to set cpu bitmap\n"); 885 return ret; 886 } 887 session->itrace_synth_opts->cpu_bitmap = rep->cpu_bitmap; 888 } 889 890 if (rep->show_threads) { 891 ret = perf_read_values_init(&rep->show_threads_values); 892 if (ret) 893 return ret; 894 } 895 896 ret = report__setup_sample_type(rep); 897 if (ret) { 898 /* report__setup_sample_type() already showed error message */ 899 return ret; 900 } 901 902 if (rep->stats_mode) 903 stats_setup(rep); 904 905 if (rep->tasks_mode) 906 tasks_setup(rep); 907 908 ret = perf_session__process_events(session); 909 if (ret) { 910 ui__error("failed to process sample\n"); 911 return ret; 912 } 913 914 if (rep->stats_mode) 915 return stats_print(rep); 916 917 if (rep->tasks_mode) 918 return tasks_print(rep, stdout); 919 920 report__warn_kptr_restrict(rep); 921 922 evlist__for_each_entry(session->evlist, pos) 923 rep->nr_entries += evsel__hists(pos)->nr_entries; 924 925 if (use_browser == 0) { 926 if (verbose > 3) 927 perf_session__fprintf(session, stdout); 928 929 if (verbose > 2) 930 perf_session__fprintf_dsos(session, stdout); 931 932 if (dump_trace) { 933 perf_session__fprintf_nr_events(session, stdout); 934 evlist__fprintf_nr_events(session->evlist, stdout); 935 return 0; 936 } 937 } 938 939 ret = report__collapse_hists(rep); 940 if (ret) { 941 ui__error("failed to process hist entry\n"); 942 return ret; 943 } 944 945 if (session_done()) 946 return 0; 947 948 /* 949 * recalculate number of entries after collapsing since it 950 * might be changed during the collapse phase. 951 */ 952 rep->nr_entries = 0; 953 evlist__for_each_entry(session->evlist, pos) 954 rep->nr_entries += evsel__hists(pos)->nr_entries; 955 956 if (rep->nr_entries == 0) { 957 ui__error("The %s data has no samples!\n", data->path); 958 return 0; 959 } 960 961 report__output_resort(rep); 962 963 if (rep->total_cycles_mode) { 964 int block_hpps[6] = { 965 PERF_HPP_REPORT__BLOCK_TOTAL_CYCLES_PCT, 966 PERF_HPP_REPORT__BLOCK_LBR_CYCLES, 967 PERF_HPP_REPORT__BLOCK_CYCLES_PCT, 968 PERF_HPP_REPORT__BLOCK_AVG_CYCLES, 969 PERF_HPP_REPORT__BLOCK_RANGE, 970 PERF_HPP_REPORT__BLOCK_DSO, 971 }; 972 973 rep->block_reports = block_info__create_report(session->evlist, 974 rep->total_cycles, 975 block_hpps, 6, 976 &rep->nr_block_reports); 977 if (!rep->block_reports) 978 return -1; 979 } 980 981 return report__browse_hists(rep); 982 } 983 984 static int 985 report_parse_callchain_opt(const struct option *opt, const char *arg, int unset) 986 { 987 struct callchain_param *callchain = opt->value; 988 989 callchain->enabled = !unset; 990 /* 991 * --no-call-graph 992 */ 993 if (unset) { 994 symbol_conf.use_callchain = false; 995 callchain->mode = CHAIN_NONE; 996 return 0; 997 } 998 999 return parse_callchain_report_opt(arg); 1000 } 1001 1002 static int 1003 parse_time_quantum(const struct option *opt, const char *arg, 1004 int unset __maybe_unused) 1005 { 1006 unsigned long *time_q = opt->value; 1007 char *end; 1008 1009 *time_q = strtoul(arg, &end, 0); 1010 if (end == arg) 1011 goto parse_err; 1012 if (*time_q == 0) { 1013 pr_err("time quantum cannot be 0"); 1014 return -1; 1015 } 1016 end = skip_spaces(end); 1017 if (*end == 0) 1018 return 0; 1019 if (!strcmp(end, "s")) { 1020 *time_q *= NSEC_PER_SEC; 1021 return 0; 1022 } 1023 if (!strcmp(end, "ms")) { 1024 *time_q *= NSEC_PER_MSEC; 1025 return 0; 1026 } 1027 if (!strcmp(end, "us")) { 1028 *time_q *= NSEC_PER_USEC; 1029 return 0; 1030 } 1031 if (!strcmp(end, "ns")) 1032 return 0; 1033 parse_err: 1034 pr_err("Cannot parse time quantum `%s'\n", arg); 1035 return -1; 1036 } 1037 1038 int 1039 report_parse_ignore_callees_opt(const struct option *opt __maybe_unused, 1040 const char *arg, int unset __maybe_unused) 1041 { 1042 if (arg) { 1043 int err = regcomp(&ignore_callees_regex, arg, REG_EXTENDED); 1044 if (err) { 1045 char buf[BUFSIZ]; 1046 regerror(err, &ignore_callees_regex, buf, sizeof(buf)); 1047 pr_err("Invalid --ignore-callees regex: %s\n%s", arg, buf); 1048 return -1; 1049 } 1050 have_ignore_callees = 1; 1051 } 1052 1053 return 0; 1054 } 1055 1056 static int 1057 parse_branch_mode(const struct option *opt, 1058 const char *str __maybe_unused, int unset) 1059 { 1060 int *branch_mode = opt->value; 1061 1062 *branch_mode = !unset; 1063 return 0; 1064 } 1065 1066 static int 1067 parse_percent_limit(const struct option *opt, const char *str, 1068 int unset __maybe_unused) 1069 { 1070 struct report *rep = opt->value; 1071 double pcnt = strtof(str, NULL); 1072 1073 rep->min_percent = pcnt; 1074 callchain_param.min_percent = pcnt; 1075 return 0; 1076 } 1077 1078 static int process_attr(struct perf_tool *tool __maybe_unused, 1079 union perf_event *event, 1080 struct evlist **pevlist) 1081 { 1082 u64 sample_type; 1083 int err; 1084 1085 err = perf_event__process_attr(tool, event, pevlist); 1086 if (err) 1087 return err; 1088 1089 /* 1090 * Check if we need to enable callchains based 1091 * on events sample_type. 1092 */ 1093 sample_type = evlist__combined_sample_type(*pevlist); 1094 callchain_param_setup(sample_type); 1095 return 0; 1096 } 1097 1098 int cmd_report(int argc, const char **argv) 1099 { 1100 struct perf_session *session; 1101 struct itrace_synth_opts itrace_synth_opts = { .set = 0, }; 1102 struct stat st; 1103 bool has_br_stack = false; 1104 int branch_mode = -1; 1105 int last_key = 0; 1106 bool branch_call_mode = false; 1107 #define CALLCHAIN_DEFAULT_OPT "graph,0.5,caller,function,percent" 1108 static const char report_callchain_help[] = "Display call graph (stack chain/backtrace):\n\n" 1109 CALLCHAIN_REPORT_HELP 1110 "\n\t\t\t\tDefault: " CALLCHAIN_DEFAULT_OPT; 1111 char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT; 1112 const char * const report_usage[] = { 1113 "perf report [<options>]", 1114 NULL 1115 }; 1116 struct report report = { 1117 .tool = { 1118 .sample = process_sample_event, 1119 .mmap = perf_event__process_mmap, 1120 .mmap2 = perf_event__process_mmap2, 1121 .comm = perf_event__process_comm, 1122 .namespaces = perf_event__process_namespaces, 1123 .cgroup = perf_event__process_cgroup, 1124 .exit = perf_event__process_exit, 1125 .fork = perf_event__process_fork, 1126 .lost = perf_event__process_lost, 1127 .read = process_read_event, 1128 .attr = process_attr, 1129 .tracing_data = perf_event__process_tracing_data, 1130 .build_id = perf_event__process_build_id, 1131 .id_index = perf_event__process_id_index, 1132 .auxtrace_info = perf_event__process_auxtrace_info, 1133 .auxtrace = perf_event__process_auxtrace, 1134 .event_update = perf_event__process_event_update, 1135 .feature = process_feature_event, 1136 .ordered_events = true, 1137 .ordering_requires_timestamps = true, 1138 }, 1139 .max_stack = PERF_MAX_STACK_DEPTH, 1140 .pretty_printing_style = "normal", 1141 .socket_filter = -1, 1142 .annotation_opts = annotation__default_options, 1143 }; 1144 const struct option options[] = { 1145 OPT_STRING('i', "input", &input_name, "file", 1146 "input file name"), 1147 OPT_INCR('v', "verbose", &verbose, 1148 "be more verbose (show symbol address, etc)"), 1149 OPT_BOOLEAN('q', "quiet", &quiet, "Do not show any message"), 1150 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, 1151 "dump raw trace in ASCII"), 1152 OPT_BOOLEAN(0, "stats", &report.stats_mode, "Display event stats"), 1153 OPT_BOOLEAN(0, "tasks", &report.tasks_mode, "Display recorded tasks"), 1154 OPT_BOOLEAN(0, "mmaps", &report.mmaps_mode, "Display recorded tasks memory maps"), 1155 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, 1156 "file", "vmlinux pathname"), 1157 OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, 1158 "don't load vmlinux even if found"), 1159 OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, 1160 "file", "kallsyms pathname"), 1161 OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"), 1162 OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules, 1163 "load module symbols - WARNING: use only with -k and LIVE kernel"), 1164 OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, 1165 "Show a column with the number of samples"), 1166 OPT_BOOLEAN('T', "threads", &report.show_threads, 1167 "Show per-thread event counters"), 1168 OPT_STRING(0, "pretty", &report.pretty_printing_style, "key", 1169 "pretty printing style key: normal raw"), 1170 OPT_BOOLEAN(0, "tui", &report.use_tui, "Use the TUI interface"), 1171 OPT_BOOLEAN(0, "gtk", &report.use_gtk, "Use the GTK2 interface"), 1172 OPT_BOOLEAN(0, "stdio", &report.use_stdio, 1173 "Use the stdio interface"), 1174 OPT_BOOLEAN(0, "header", &report.header, "Show data header."), 1175 OPT_BOOLEAN(0, "header-only", &report.header_only, 1176 "Show only data header."), 1177 OPT_STRING('s', "sort", &sort_order, "key[,key2...]", 1178 sort_help("sort by key(s):")), 1179 OPT_STRING('F', "fields", &field_order, "key[,keys...]", 1180 sort_help("output field(s): overhead period sample ")), 1181 OPT_BOOLEAN(0, "show-cpu-utilization", &symbol_conf.show_cpu_utilization, 1182 "Show sample percentage for different cpu modes"), 1183 OPT_BOOLEAN_FLAG(0, "showcpuutilization", &symbol_conf.show_cpu_utilization, 1184 "Show sample percentage for different cpu modes", PARSE_OPT_HIDDEN), 1185 OPT_STRING('p', "parent", &parent_pattern, "regex", 1186 "regex filter to identify parent, see: '--sort parent'"), 1187 OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other, 1188 "Only display entries with parent-match"), 1189 OPT_CALLBACK_DEFAULT('g', "call-graph", &callchain_param, 1190 "print_type,threshold[,print_limit],order,sort_key[,branch],value", 1191 report_callchain_help, &report_parse_callchain_opt, 1192 callchain_default_opt), 1193 OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, 1194 "Accumulate callchains of children and show total overhead as well. " 1195 "Enabled by default, use --no-children to disable."), 1196 OPT_INTEGER(0, "max-stack", &report.max_stack, 1197 "Set the maximum stack depth when parsing the callchain, " 1198 "anything beyond the specified depth will be ignored. " 1199 "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)), 1200 OPT_BOOLEAN('G', "inverted", &report.inverted_callchain, 1201 "alias for inverted call graph"), 1202 OPT_CALLBACK(0, "ignore-callees", NULL, "regex", 1203 "ignore callees of these functions in call graphs", 1204 report_parse_ignore_callees_opt), 1205 OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", 1206 "only consider symbols in these dsos"), 1207 OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", 1208 "only consider symbols in these comms"), 1209 OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]", 1210 "only consider symbols in these pids"), 1211 OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]", 1212 "only consider symbols in these tids"), 1213 OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", 1214 "only consider these symbols"), 1215 OPT_STRING(0, "symbol-filter", &report.symbol_filter_str, "filter", 1216 "only show symbols that (partially) match with this filter"), 1217 OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, 1218 "width[,width...]", 1219 "don't try to adjust column width, use these fixed values"), 1220 OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf.field_sep, "separator", 1221 "separator for columns, no spaces will be added between " 1222 "columns '.' is reserved."), 1223 OPT_BOOLEAN('U', "hide-unresolved", &symbol_conf.hide_unresolved, 1224 "Only display entries resolved to a symbol"), 1225 OPT_CALLBACK(0, "symfs", NULL, "directory", 1226 "Look for files with symbols relative to this directory", 1227 symbol__config_symfs), 1228 OPT_STRING('C', "cpu", &report.cpu_list, "cpu", 1229 "list of cpus to profile"), 1230 OPT_BOOLEAN('I', "show-info", &report.show_full_info, 1231 "Display extended information about perf.data file"), 1232 OPT_BOOLEAN(0, "source", &report.annotation_opts.annotate_src, 1233 "Interleave source code with assembly code (default)"), 1234 OPT_BOOLEAN(0, "asm-raw", &report.annotation_opts.show_asm_raw, 1235 "Display raw encoding of assembly instructions (default)"), 1236 OPT_STRING('M', "disassembler-style", &report.annotation_opts.disassembler_style, "disassembler style", 1237 "Specify disassembler style (e.g. -M intel for intel syntax)"), 1238 OPT_STRING(0, "prefix", &report.annotation_opts.prefix, "prefix", 1239 "Add prefix to source file path names in programs (with --prefix-strip)"), 1240 OPT_STRING(0, "prefix-strip", &report.annotation_opts.prefix_strip, "N", 1241 "Strip first N entries of source file path name in programs (with --prefix)"), 1242 OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, 1243 "Show a column with the sum of periods"), 1244 OPT_BOOLEAN_SET(0, "group", &symbol_conf.event_group, &report.group_set, 1245 "Show event group information together"), 1246 OPT_INTEGER(0, "group-sort-idx", &symbol_conf.group_sort_idx, 1247 "Sort the output by the event at the index n in group. " 1248 "If n is invalid, sort by the first event. " 1249 "WARNING: should be used on grouped events."), 1250 OPT_CALLBACK_NOOPT('b', "branch-stack", &branch_mode, "", 1251 "use branch records for per branch histogram filling", 1252 parse_branch_mode), 1253 OPT_BOOLEAN(0, "branch-history", &branch_call_mode, 1254 "add last branch records to call history"), 1255 OPT_STRING(0, "objdump", &report.annotation_opts.objdump_path, "path", 1256 "objdump binary to use for disassembly and annotations"), 1257 OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle, 1258 "Disable symbol demangling"), 1259 OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, 1260 "Enable kernel symbol demangling"), 1261 OPT_BOOLEAN(0, "mem-mode", &report.mem_mode, "mem access profile"), 1262 OPT_INTEGER(0, "samples", &symbol_conf.res_sample, 1263 "Number of samples to save per histogram entry for individual browsing"), 1264 OPT_CALLBACK(0, "percent-limit", &report, "percent", 1265 "Don't show entries under that percent", parse_percent_limit), 1266 OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", 1267 "how to display percentage of filtered entries", parse_filter_percentage), 1268 OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts", 1269 "Instruction Tracing options\n" ITRACE_HELP, 1270 itrace_parse_synth_opts), 1271 OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename, 1272 "Show full source file name path for source lines"), 1273 OPT_BOOLEAN(0, "show-ref-call-graph", &symbol_conf.show_ref_callgraph, 1274 "Show callgraph from reference event"), 1275 OPT_BOOLEAN(0, "stitch-lbr", &report.stitch_lbr, 1276 "Enable LBR callgraph stitching approach"), 1277 OPT_INTEGER(0, "socket-filter", &report.socket_filter, 1278 "only show processor socket that match with this filter"), 1279 OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace, 1280 "Show raw trace event output (do not use print fmt or plugins)"), 1281 OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy, 1282 "Show entries in a hierarchy"), 1283 OPT_CALLBACK_DEFAULT(0, "stdio-color", NULL, "mode", 1284 "'always' (default), 'never' or 'auto' only applicable to --stdio mode", 1285 stdio__config_color, "always"), 1286 OPT_STRING(0, "time", &report.time_str, "str", 1287 "Time span of interest (start,stop)"), 1288 OPT_BOOLEAN(0, "inline", &symbol_conf.inline_name, 1289 "Show inline function"), 1290 OPT_CALLBACK(0, "percent-type", &report.annotation_opts, "local-period", 1291 "Set percent type local/global-period/hits", 1292 annotate_parse_percent_type), 1293 OPT_BOOLEAN(0, "ns", &symbol_conf.nanosecs, "Show times in nanosecs"), 1294 OPT_CALLBACK(0, "time-quantum", &symbol_conf.time_quantum, "time (ms|us|ns|s)", 1295 "Set time quantum for time sort key (default 100ms)", 1296 parse_time_quantum), 1297 OPTS_EVSWITCH(&report.evswitch), 1298 OPT_BOOLEAN(0, "total-cycles", &report.total_cycles_mode, 1299 "Sort all blocks by 'Sampled Cycles%'"), 1300 OPT_BOOLEAN(0, "disable-order", &report.disable_order, 1301 "Disable raw trace ordering"), 1302 OPT_END() 1303 }; 1304 struct perf_data data = { 1305 .mode = PERF_DATA_MODE_READ, 1306 }; 1307 int ret = hists__init(); 1308 char sort_tmp[128]; 1309 1310 if (ret < 0) 1311 return ret; 1312 1313 ret = perf_config(report__config, &report); 1314 if (ret) 1315 return ret; 1316 1317 argc = parse_options(argc, argv, options, report_usage, 0); 1318 if (argc) { 1319 /* 1320 * Special case: if there's an argument left then assume that 1321 * it's a symbol filter: 1322 */ 1323 if (argc > 1) 1324 usage_with_options(report_usage, options); 1325 1326 report.symbol_filter_str = argv[0]; 1327 } 1328 1329 if (annotate_check_args(&report.annotation_opts) < 0) 1330 return -EINVAL; 1331 1332 if (report.mmaps_mode) 1333 report.tasks_mode = true; 1334 1335 if (dump_trace && report.disable_order) 1336 report.tool.ordered_events = false; 1337 1338 if (quiet) 1339 perf_quiet_option(); 1340 1341 if (symbol_conf.vmlinux_name && 1342 access(symbol_conf.vmlinux_name, R_OK)) { 1343 pr_err("Invalid file: %s\n", symbol_conf.vmlinux_name); 1344 return -EINVAL; 1345 } 1346 if (symbol_conf.kallsyms_name && 1347 access(symbol_conf.kallsyms_name, R_OK)) { 1348 pr_err("Invalid file: %s\n", symbol_conf.kallsyms_name); 1349 return -EINVAL; 1350 } 1351 1352 if (report.inverted_callchain) 1353 callchain_param.order = ORDER_CALLER; 1354 if (symbol_conf.cumulate_callchain && !callchain_param.order_set) 1355 callchain_param.order = ORDER_CALLER; 1356 1357 if ((itrace_synth_opts.callchain || itrace_synth_opts.add_callchain) && 1358 (int)itrace_synth_opts.callchain_sz > report.max_stack) 1359 report.max_stack = itrace_synth_opts.callchain_sz; 1360 1361 if (!input_name || !strlen(input_name)) { 1362 if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode)) 1363 input_name = "-"; 1364 else 1365 input_name = "perf.data"; 1366 } 1367 1368 data.path = input_name; 1369 data.force = symbol_conf.force; 1370 1371 repeat: 1372 session = perf_session__new(&data, false, &report.tool); 1373 if (IS_ERR(session)) 1374 return PTR_ERR(session); 1375 1376 ret = evswitch__init(&report.evswitch, session->evlist, stderr); 1377 if (ret) 1378 return ret; 1379 1380 if (zstd_init(&(session->zstd_data), 0) < 0) 1381 pr_warning("Decompression initialization failed. Reported data may be incomplete.\n"); 1382 1383 if (report.queue_size) { 1384 ordered_events__set_alloc_size(&session->ordered_events, 1385 report.queue_size); 1386 } 1387 1388 session->itrace_synth_opts = &itrace_synth_opts; 1389 1390 report.session = session; 1391 1392 has_br_stack = perf_header__has_feat(&session->header, 1393 HEADER_BRANCH_STACK); 1394 if (evlist__combined_sample_type(session->evlist) & PERF_SAMPLE_STACK_USER) 1395 has_br_stack = false; 1396 1397 setup_forced_leader(&report, session->evlist); 1398 1399 if (symbol_conf.group_sort_idx && !session->evlist->nr_groups) { 1400 parse_options_usage(NULL, options, "group-sort-idx", 0); 1401 ret = -EINVAL; 1402 goto error; 1403 } 1404 1405 if (itrace_synth_opts.last_branch || itrace_synth_opts.add_last_branch) 1406 has_br_stack = true; 1407 1408 if (has_br_stack && branch_call_mode) 1409 symbol_conf.show_branchflag_count = true; 1410 1411 memset(&report.brtype_stat, 0, sizeof(struct branch_type_stat)); 1412 1413 /* 1414 * Branch mode is a tristate: 1415 * -1 means default, so decide based on the file having branch data. 1416 * 0/1 means the user chose a mode. 1417 */ 1418 if (((branch_mode == -1 && has_br_stack) || branch_mode == 1) && 1419 !branch_call_mode) { 1420 sort__mode = SORT_MODE__BRANCH; 1421 symbol_conf.cumulate_callchain = false; 1422 } 1423 if (branch_call_mode) { 1424 callchain_param.key = CCKEY_ADDRESS; 1425 callchain_param.branch_callstack = true; 1426 symbol_conf.use_callchain = true; 1427 callchain_register_param(&callchain_param); 1428 if (sort_order == NULL) 1429 sort_order = "srcline,symbol,dso"; 1430 } 1431 1432 if (report.mem_mode) { 1433 if (sort__mode == SORT_MODE__BRANCH) { 1434 pr_err("branch and mem mode incompatible\n"); 1435 goto error; 1436 } 1437 sort__mode = SORT_MODE__MEMORY; 1438 symbol_conf.cumulate_callchain = false; 1439 } 1440 1441 if (symbol_conf.report_hierarchy) { 1442 /* disable incompatible options */ 1443 symbol_conf.cumulate_callchain = false; 1444 1445 if (field_order) { 1446 pr_err("Error: --hierarchy and --fields options cannot be used together\n"); 1447 parse_options_usage(report_usage, options, "F", 1); 1448 parse_options_usage(NULL, options, "hierarchy", 0); 1449 goto error; 1450 } 1451 1452 perf_hpp_list.need_collapse = true; 1453 } 1454 1455 if (report.use_stdio) 1456 use_browser = 0; 1457 else if (report.use_tui) 1458 use_browser = 1; 1459 else if (report.use_gtk) 1460 use_browser = 2; 1461 1462 /* Force tty output for header output and per-thread stat. */ 1463 if (report.header || report.header_only || report.show_threads) 1464 use_browser = 0; 1465 if (report.header || report.header_only) 1466 report.tool.show_feat_hdr = SHOW_FEAT_HEADER; 1467 if (report.show_full_info) 1468 report.tool.show_feat_hdr = SHOW_FEAT_HEADER_FULL_INFO; 1469 if (report.stats_mode || report.tasks_mode) 1470 use_browser = 0; 1471 if (report.stats_mode && report.tasks_mode) { 1472 pr_err("Error: --tasks and --mmaps can't be used together with --stats\n"); 1473 goto error; 1474 } 1475 1476 if (report.total_cycles_mode) { 1477 if (sort__mode != SORT_MODE__BRANCH) 1478 report.total_cycles_mode = false; 1479 else 1480 sort_order = NULL; 1481 } 1482 1483 if (strcmp(input_name, "-") != 0) 1484 setup_browser(true); 1485 else 1486 use_browser = 0; 1487 1488 if (sort_order && strstr(sort_order, "ipc")) { 1489 parse_options_usage(report_usage, options, "s", 1); 1490 goto error; 1491 } 1492 1493 if (sort_order && strstr(sort_order, "symbol")) { 1494 if (sort__mode == SORT_MODE__BRANCH) { 1495 snprintf(sort_tmp, sizeof(sort_tmp), "%s,%s", 1496 sort_order, "ipc_lbr"); 1497 report.symbol_ipc = true; 1498 } else { 1499 snprintf(sort_tmp, sizeof(sort_tmp), "%s,%s", 1500 sort_order, "ipc_null"); 1501 } 1502 1503 sort_order = sort_tmp; 1504 } 1505 1506 if ((last_key != K_SWITCH_INPUT_DATA && last_key != K_RELOAD) && 1507 (setup_sorting(session->evlist) < 0)) { 1508 if (sort_order) 1509 parse_options_usage(report_usage, options, "s", 1); 1510 if (field_order) 1511 parse_options_usage(sort_order ? NULL : report_usage, 1512 options, "F", 1); 1513 goto error; 1514 } 1515 1516 if ((report.header || report.header_only) && !quiet) { 1517 perf_session__fprintf_info(session, stdout, 1518 report.show_full_info); 1519 if (report.header_only) { 1520 if (data.is_pipe) { 1521 /* 1522 * we need to process first few records 1523 * which contains PERF_RECORD_HEADER_FEATURE. 1524 */ 1525 perf_session__process_events(session); 1526 } 1527 ret = 0; 1528 goto error; 1529 } 1530 } else if (use_browser == 0 && !quiet && 1531 !report.stats_mode && !report.tasks_mode) { 1532 fputs("# To display the perf.data header info, please use --header/--header-only options.\n#\n", 1533 stdout); 1534 } 1535 1536 /* 1537 * Only in the TUI browser we are doing integrated annotation, 1538 * so don't allocate extra space that won't be used in the stdio 1539 * implementation. 1540 */ 1541 if (ui__has_annotation() || report.symbol_ipc || 1542 report.total_cycles_mode) { 1543 ret = symbol__annotation_init(); 1544 if (ret < 0) 1545 goto error; 1546 /* 1547 * For searching by name on the "Browse map details". 1548 * providing it only in verbose mode not to bloat too 1549 * much struct symbol. 1550 */ 1551 if (verbose > 0) { 1552 /* 1553 * XXX: Need to provide a less kludgy way to ask for 1554 * more space per symbol, the u32 is for the index on 1555 * the ui browser. 1556 * See symbol__browser_index. 1557 */ 1558 symbol_conf.priv_size += sizeof(u32); 1559 symbol_conf.sort_by_name = true; 1560 } 1561 annotation_config__init(&report.annotation_opts); 1562 } 1563 1564 if (symbol__init(&session->header.env) < 0) 1565 goto error; 1566 1567 if (report.time_str) { 1568 ret = perf_time__parse_for_ranges(report.time_str, session, 1569 &report.ptime_range, 1570 &report.range_size, 1571 &report.range_num); 1572 if (ret < 0) 1573 goto error; 1574 1575 itrace_synth_opts__set_time_range(&itrace_synth_opts, 1576 report.ptime_range, 1577 report.range_num); 1578 } 1579 1580 if (session->tevent.pevent && 1581 tep_set_function_resolver(session->tevent.pevent, 1582 machine__resolve_kernel_addr, 1583 &session->machines.host) < 0) { 1584 pr_err("%s: failed to set libtraceevent function resolver\n", 1585 __func__); 1586 return -1; 1587 } 1588 1589 sort__setup_elide(stdout); 1590 1591 ret = __cmd_report(&report); 1592 if (ret == K_SWITCH_INPUT_DATA || ret == K_RELOAD) { 1593 perf_session__delete(session); 1594 last_key = K_SWITCH_INPUT_DATA; 1595 goto repeat; 1596 } else 1597 ret = 0; 1598 1599 error: 1600 if (report.ptime_range) { 1601 itrace_synth_opts__clear_time_range(&itrace_synth_opts); 1602 zfree(&report.ptime_range); 1603 } 1604 1605 if (report.block_reports) { 1606 block_info__free_report(report.block_reports, 1607 report.nr_block_reports); 1608 report.block_reports = NULL; 1609 } 1610 1611 zstd_fini(&(session->zstd_data)); 1612 perf_session__delete(session); 1613 return ret; 1614 } 1615