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