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