tools/perf/builtin-report.c

   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
  44 struct 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
  69 static 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
  93 static 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
 134 out:
 135         return err;
 136 }
 137
 138 static 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");
 188 out_put:
 189         addr_location__put(&al);
 190         return ret;
 191 }
 192
 193 static 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 */
 218 static 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 #ifndef HAVE_LIBUNWIND_SUPPORT
 289         if (dwarf_callchain_users) {
 290                 ui__warning("Please install libunwind development packages "
 291                             "during the perf build.\n");
 292         }
 293 #endif
 294
 295         return 0;
 296 }
 297
 298 static void sig_handler(int sig __maybe_unused)
 299 {
 300         session_done = 1;
 301 }
 302
 303 static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report *rep,
 304                                               const char *evname, FILE *fp)
 305 {
 306         size_t ret;
 307         char unit;
 308         unsigned long nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE];
 309         u64 nr_events = hists->stats.total_period;
 310         struct perf_evsel *evsel = hists_to_evsel(hists);
 311         char buf[512];
 312         size_t size = sizeof(buf);
 313         int socked_id = hists->socket_filter;
 314
 315         if (symbol_conf.filter_relative) {
 316                 nr_samples = hists->stats.nr_non_filtered_samples;
 317                 nr_events = hists->stats.total_non_filtered_period;
 318         }
 319
 320         if (perf_evsel__is_group_event(evsel)) {
 321                 struct perf_evsel *pos;
 322
 323                 perf_evsel__group_desc(evsel, buf, size);
 324                 evname = buf;
 325
 326                 for_each_group_member(pos, evsel) {
 327                         const struct hists *pos_hists = evsel__hists(pos);
 328
 329                         if (symbol_conf.filter_relative) {
 330                                 nr_samples += pos_hists->stats.nr_non_filtered_samples;
 331                                 nr_events += pos_hists->stats.total_non_filtered_period;
 332                         } else {
 333                                 nr_samples += pos_hists->stats.nr_events[PERF_RECORD_SAMPLE];
 334                                 nr_events += pos_hists->stats.total_period;
 335                         }
 336                 }
 337         }
 338
 339         nr_samples = convert_unit(nr_samples, &unit);
 340         ret = fprintf(fp, "# Samples: %lu%c", nr_samples, unit);
 341         if (evname != NULL)
 342                 ret += fprintf(fp, " of event '%s'", evname);
 343
 344         if (symbol_conf.show_ref_callgraph &&
 345             strstr(evname, "call-graph=no")) {
 346                 ret += fprintf(fp, ", show reference callgraph");
 347         }
 348
 349         if (rep->mem_mode) {
 350                 ret += fprintf(fp, "\n# Total weight : %" PRIu64, nr_events);
 351                 ret += fprintf(fp, "\n# Sort order   : %s", sort_order ? : default_mem_sort_order);
 352         } else
 353                 ret += fprintf(fp, "\n# Event count (approx.): %" PRIu64, nr_events);
 354
 355         if (socked_id > -1)
 356                 ret += fprintf(fp, "\n# Processor Socket: %d", socked_id);
 357
 358         return ret + fprintf(fp, "\n#\n");
 359 }
 360
 361 static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist,
 362                                          struct report *rep,
 363                                          const char *help)
 364 {
 365         struct perf_evsel *pos;
 366
 367         fprintf(stdout, "#\n# Total Lost Samples: %" PRIu64 "\n#\n", evlist->stats.total_lost_samples);
 368         evlist__for_each(evlist, pos) {
 369                 struct hists *hists = evsel__hists(pos);
 370                 const char *evname = perf_evsel__name(pos);
 371
 372                 if (symbol_conf.event_group &&
 373                     !perf_evsel__is_group_leader(pos))
 374                         continue;
 375
 376                 hists__fprintf_nr_sample_events(hists, rep, evname, stdout);
 377                 hists__fprintf(hists, true, 0, 0, rep->min_percent, stdout);
 378                 fprintf(stdout, "\n\n");
 379         }
 380
 381         if (sort_order == NULL &&
 382             parent_pattern == default_parent_pattern)
 383                 fprintf(stdout, "#\n# (%s)\n#\n", help);
 384
 385         if (rep->show_threads) {
 386                 bool style = !strcmp(rep->pretty_printing_style, "raw");
 387                 perf_read_values_display(stdout, &rep->show_threads_values,
 388                                          style);
 389                 perf_read_values_destroy(&rep->show_threads_values);
 390         }
 391
 392         return 0;
 393 }
 394
 395 static void report__warn_kptr_restrict(const struct report *rep)
 396 {
 397         struct map *kernel_map = machine__kernel_map(&rep->session->machines.host);
 398         struct kmap *kernel_kmap = kernel_map ? map__kmap(kernel_map) : NULL;
 399
 400         if (kernel_map == NULL ||
 401             (kernel_map->dso->hit &&
 402              (kernel_kmap->ref_reloc_sym == NULL ||
 403               kernel_kmap->ref_reloc_sym->addr == 0))) {
 404                 const char *desc =
 405                     "As no suitable kallsyms nor vmlinux was found, kernel samples\n"
 406                     "can't be resolved.";
 407
 408                 if (kernel_map) {
 409                         const struct dso *kdso = kernel_map->dso;
 410                         if (!RB_EMPTY_ROOT(&kdso->symbols[MAP__FUNCTION])) {
 411                                 desc = "If some relocation was applied (e.g. "
 412                                        "kexec) symbols may be misresolved.";
 413                         }
 414                 }
 415
 416                 ui__warning(
 417 "Kernel address maps (/proc/{kallsyms,modules}) were restricted.\n\n"
 418 "Check /proc/sys/kernel/kptr_restrict before running 'perf record'.\n\n%s\n\n"
 419 "Samples in kernel modules can't be resolved as well.\n\n",
 420                 desc);
 421         }
 422 }
 423
 424 static int report__gtk_browse_hists(struct report *rep, const char *help)
 425 {
 426         int (*hist_browser)(struct perf_evlist *evlist, const char *help,
 427                             struct hist_browser_timer *timer, float min_pcnt);
 428
 429         hist_browser = dlsym(perf_gtk_handle, "perf_evlist__gtk_browse_hists");
 430
 431         if (hist_browser == NULL) {
 432                 ui__error("GTK browser not found!\n");
 433                 return -1;
 434         }
 435
 436         return hist_browser(rep->session->evlist, help, NULL, rep->min_percent);
 437 }
 438
 439 static int report__browse_hists(struct report *rep)
 440 {
 441         int ret;
 442         struct perf_session *session = rep->session;
 443         struct perf_evlist *evlist = session->evlist;
 444         const char *help = "For a higher level overview, try: perf report --sort comm,dso";
 445
 446         switch (use_browser) {
 447         case 1:
 448                 ret = perf_evlist__tui_browse_hists(evlist, help, NULL,
 449                                                     rep->min_percent,
 450                                                     &session->header.env);
 451                 /*
 452                  * Usually "ret" is the last pressed key, and we only
 453                  * care if the key notifies us to switch data file.
 454                  */
 455                 if (ret != K_SWITCH_INPUT_DATA)
 456                         ret = 0;
 457                 break;
 458         case 2:
 459                 ret = report__gtk_browse_hists(rep, help);
 460                 break;
 461         default:
 462                 ret = perf_evlist__tty_browse_hists(evlist, rep, help);
 463                 break;
 464         }
 465
 466         return ret;
 467 }
 468
 469 static void report__collapse_hists(struct report *rep)
 470 {
 471         struct ui_progress prog;
 472         struct perf_evsel *pos;
 473
 474         ui_progress__init(&prog, rep->nr_entries, "Merging related events...");
 475
 476         evlist__for_each(rep->session->evlist, pos) {
 477                 struct hists *hists = evsel__hists(pos);
 478
 479                 if (pos->idx == 0)
 480                         hists->symbol_filter_str = rep->symbol_filter_str;
 481
 482                 hists->socket_filter = rep->socket_filter;
 483
 484                 hists__collapse_resort(hists, &prog);
 485
 486                 /* Non-group events are considered as leader */
 487                 if (symbol_conf.event_group &&
 488                     !perf_evsel__is_group_leader(pos)) {
 489                         struct hists *leader_hists = evsel__hists(pos->leader);
 490
 491                         hists__match(leader_hists, hists);
 492                         hists__link(leader_hists, hists);
 493                 }
 494         }
 495
 496         ui_progress__finish();
 497 }
 498
 499 static void report__output_resort(struct report *rep)
 500 {
 501         struct ui_progress prog;
 502         struct perf_evsel *pos;
 503
 504         ui_progress__init(&prog, rep->nr_entries, "Sorting events for output...");
 505
 506         evlist__for_each(rep->session->evlist, pos)
 507                 hists__output_resort(evsel__hists(pos), &prog);
 508
 509         ui_progress__finish();
 510 }
 511
 512 static int __cmd_report(struct report *rep)
 513 {
 514         int ret;
 515         struct perf_session *session = rep->session;
 516         struct perf_evsel *pos;
 517         struct perf_data_file *file = session->file;
 518
 519         signal(SIGINT, sig_handler);
 520
 521         if (rep->cpu_list) {
 522                 ret = perf_session__cpu_bitmap(session, rep->cpu_list,
 523                                                rep->cpu_bitmap);
 524                 if (ret)
 525                         return ret;
 526         }
 527
 528         if (rep->show_threads)
 529                 perf_read_values_init(&rep->show_threads_values);
 530
 531         ret = report__setup_sample_type(rep);
 532         if (ret)
 533                 return ret;
 534
 535         ret = perf_session__process_events(session);
 536         if (ret)
 537                 return ret;
 538
 539         report__warn_kptr_restrict(rep);
 540
 541         evlist__for_each(session->evlist, pos)
 542                 rep->nr_entries += evsel__hists(pos)->nr_entries;
 543
 544         if (use_browser == 0) {
 545                 if (verbose > 3)
 546                         perf_session__fprintf(session, stdout);
 547
 548                 if (verbose > 2)
 549                         perf_session__fprintf_dsos(session, stdout);
 550
 551                 if (dump_trace) {
 552                         perf_session__fprintf_nr_events(session, stdout);
 553                         perf_evlist__fprintf_nr_events(session->evlist, stdout);
 554                         return 0;
 555                 }
 556         }
 557
 558         report__collapse_hists(rep);
 559
 560         if (session_done())
 561                 return 0;
 562
 563         /*
 564          * recalculate number of entries after collapsing since it
 565          * might be changed during the collapse phase.
 566          */
 567         rep->nr_entries = 0;
 568         evlist__for_each(session->evlist, pos)
 569                 rep->nr_entries += evsel__hists(pos)->nr_entries;
 570
 571         if (rep->nr_entries == 0) {
 572                 ui__error("The %s file has no samples!\n", file->path);
 573                 return 0;
 574         }
 575
 576         report__output_resort(rep);
 577
 578         return report__browse_hists(rep);
 579 }
 580
 581 static int
 582 report_parse_callchain_opt(const struct option *opt, const char *arg, int unset)
 583 {
 584         struct report *rep = (struct report *)opt->value;
 585
 586         /*
 587          * --no-call-graph
 588          */
 589         if (unset) {
 590                 rep->dont_use_callchains = true;
 591                 return 0;
 592         }
 593
 594         return parse_callchain_report_opt(arg);
 595 }
 596
 597 int
 598 report_parse_ignore_callees_opt(const struct option *opt __maybe_unused,
 599                                 const char *arg, int unset __maybe_unused)
 600 {
 601         if (arg) {
 602                 int err = regcomp(&ignore_callees_regex, arg, REG_EXTENDED);
 603                 if (err) {
 604                         char buf[BUFSIZ];
 605                         regerror(err, &ignore_callees_regex, buf, sizeof(buf));
 606                         pr_err("Invalid --ignore-callees regex: %s\n%s", arg, buf);
 607                         return -1;
 608                 }
 609                 have_ignore_callees = 1;
 610         }
 611
 612         return 0;
 613 }
 614
 615 static int
 616 parse_branch_mode(const struct option *opt __maybe_unused,
 617                   const char *str __maybe_unused, int unset)
 618 {
 619         int *branch_mode = opt->value;
 620
 621         *branch_mode = !unset;
 622         return 0;
 623 }
 624
 625 static int
 626 parse_percent_limit(const struct option *opt, const char *str,
 627                     int unset __maybe_unused)
 628 {
 629         struct report *rep = opt->value;
 630
 631         rep->min_percent = strtof(str, NULL);
 632         return 0;
 633 }
 634
 635 #define CALLCHAIN_DEFAULT_OPT  "graph,0.5,caller,function"
 636
 637 const char report_callchain_help[] = "Display call graph (stack chain/backtrace):\n\n"
 638                                      CALLCHAIN_REPORT_HELP
 639                                      "\n\t\t\t\tDefault: " CALLCHAIN_DEFAULT_OPT;
 640
 641 int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
 642 {
 643         struct perf_session *session;
 644         struct itrace_synth_opts itrace_synth_opts = { .set = 0, };
 645         struct stat st;
 646         bool has_br_stack = false;
 647         int branch_mode = -1;
 648         bool branch_call_mode = false;
 649         char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT;
 650         const char * const report_usage[] = {
 651                 "perf report [<options>]",
 652                 NULL
 653         };
 654         struct report report = {
 655                 .tool = {
 656                         .sample          = process_sample_event,
 657                         .mmap            = perf_event__process_mmap,
 658                         .mmap2           = perf_event__process_mmap2,
 659                         .comm            = perf_event__process_comm,
 660                         .exit            = perf_event__process_exit,
 661                         .fork            = perf_event__process_fork,
 662                         .lost            = perf_event__process_lost,
 663                         .read            = process_read_event,
 664                         .attr            = perf_event__process_attr,
 665                         .tracing_data    = perf_event__process_tracing_data,
 666                         .build_id        = perf_event__process_build_id,
 667                         .id_index        = perf_event__process_id_index,
 668                         .auxtrace_info   = perf_event__process_auxtrace_info,
 669                         .auxtrace        = perf_event__process_auxtrace,
 670                         .ordered_events  = true,
 671                         .ordering_requires_timestamps = true,
 672                 },
 673                 .max_stack               = PERF_MAX_STACK_DEPTH,
 674                 .pretty_printing_style   = "normal",
 675                 .socket_filter           = -1,
 676         };
 677         const struct option options[] = {
 678         OPT_STRING('i', "input", &input_name, "file",
 679                     "input file name"),
 680         OPT_INCR('v', "verbose", &verbose,
 681                     "be more verbose (show symbol address, etc)"),
 682         OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
 683                     "dump raw trace in ASCII"),
 684         OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
 685                    "file", "vmlinux pathname"),
 686         OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
 687                    "file", "kallsyms pathname"),
 688         OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"),
 689         OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
 690                     "load module symbols - WARNING: use only with -k and LIVE kernel"),
 691         OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
 692                     "Show a column with the number of samples"),
 693         OPT_BOOLEAN('T', "threads", &report.show_threads,
 694                     "Show per-thread event counters"),
 695         OPT_STRING(0, "pretty", &report.pretty_printing_style, "key",
 696                    "pretty printing style key: normal raw"),
 697         OPT_BOOLEAN(0, "tui", &report.use_tui, "Use the TUI interface"),
 698         OPT_BOOLEAN(0, "gtk", &report.use_gtk, "Use the GTK2 interface"),
 699         OPT_BOOLEAN(0, "stdio", &report.use_stdio,
 700                     "Use the stdio interface"),
 701         OPT_BOOLEAN(0, "header", &report.header, "Show data header."),
 702         OPT_BOOLEAN(0, "header-only", &report.header_only,
 703                     "Show only data header."),
 704         OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
 705                    "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..."
 706                    " Please refer the man page for the complete list."),
 707         OPT_STRING('F', "fields", &field_order, "key[,keys...]",
 708                    "output field(s): overhead, period, sample plus all of sort keys"),
 709         OPT_BOOLEAN(0, "show-cpu-utilization", &symbol_conf.show_cpu_utilization,
 710                     "Show sample percentage for different cpu modes"),
 711         OPT_BOOLEAN_FLAG(0, "showcpuutilization", &symbol_conf.show_cpu_utilization,
 712                     "Show sample percentage for different cpu modes", PARSE_OPT_HIDDEN),
 713         OPT_STRING('p', "parent", &parent_pattern, "regex",
 714                    "regex filter to identify parent, see: '--sort parent'"),
 715         OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other,
 716                     "Only display entries with parent-match"),
 717         OPT_CALLBACK_DEFAULT('g', "call-graph", &report,
 718                              "print_type,threshold[,print_limit],order,sort_key[,branch]",
 719                              report_callchain_help, &report_parse_callchain_opt,
 720                              callchain_default_opt),
 721         OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain,
 722                     "Accumulate callchains of children and show total overhead as well"),
 723         OPT_INTEGER(0, "max-stack", &report.max_stack,
 724                     "Set the maximum stack depth when parsing the callchain, "
 725                     "anything beyond the specified depth will be ignored. "
 726                     "Default: " __stringify(PERF_MAX_STACK_DEPTH)),
 727         OPT_BOOLEAN('G', "inverted", &report.inverted_callchain,
 728                     "alias for inverted call graph"),
 729         OPT_CALLBACK(0, "ignore-callees", NULL, "regex",
 730                    "ignore callees of these functions in call graphs",
 731                    report_parse_ignore_callees_opt),
 732         OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
 733                    "only consider symbols in these dsos"),
 734         OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
 735                    "only consider symbols in these comms"),
 736         OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]",
 737                    "only consider symbols in these pids"),
 738         OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]",
 739                    "only consider symbols in these tids"),
 740         OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
 741                    "only consider these symbols"),
 742         OPT_STRING(0, "symbol-filter", &report.symbol_filter_str, "filter",
 743                    "only show symbols that (partially) match with this filter"),
 744         OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str,
 745                    "width[,width...]",
 746                    "don't try to adjust column width, use these fixed values"),
 747         OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf.field_sep, "separator",
 748                    "separator for columns, no spaces will be added between "
 749                    "columns '.' is reserved."),
 750         OPT_BOOLEAN('U', "hide-unresolved", &report.hide_unresolved,
 751                     "Only display entries resolved to a symbol"),
 752         OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
 753                     "Look for files with symbols relative to this directory"),
 754         OPT_STRING('C', "cpu", &report.cpu_list, "cpu",
 755                    "list of cpus to profile"),
 756         OPT_BOOLEAN('I', "show-info", &report.show_full_info,
 757                     "Display extended information about perf.data file"),
 758         OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src,
 759                     "Interleave source code with assembly code (default)"),
 760         OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw,
 761                     "Display raw encoding of assembly instructions (default)"),
 762         OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style",
 763                    "Specify disassembler style (e.g. -M intel for intel syntax)"),
 764         OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,
 765                     "Show a column with the sum of periods"),
 766         OPT_BOOLEAN(0, "group", &symbol_conf.event_group,
 767                     "Show event group information together"),
 768         OPT_CALLBACK_NOOPT('b', "branch-stack", &branch_mode, "",
 769                     "use branch records for per branch histogram filling",
 770                     parse_branch_mode),
 771         OPT_BOOLEAN(0, "branch-history", &branch_call_mode,
 772                     "add last branch records to call history"),
 773         OPT_STRING(0, "objdump", &objdump_path, "path",
 774                    "objdump binary to use for disassembly and annotations"),
 775         OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
 776                     "Disable symbol demangling"),
 777         OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel,
 778                     "Enable kernel symbol demangling"),
 779         OPT_BOOLEAN(0, "mem-mode", &report.mem_mode, "mem access profile"),
 780         OPT_CALLBACK(0, "percent-limit", &report, "percent",
 781                      "Don't show entries under that percent", parse_percent_limit),
 782         OPT_CALLBACK(0, "percentage", NULL, "relative|absolute",
 783                      "how to display percentage of filtered entries", parse_filter_percentage),
 784         OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts",
 785                             "Instruction Tracing options",
 786                             itrace_parse_synth_opts),
 787         OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename,
 788                         "Show full source file name path for source lines"),
 789         OPT_BOOLEAN(0, "show-ref-call-graph", &symbol_conf.show_ref_callgraph,
 790                     "Show callgraph from reference event"),
 791         OPT_INTEGER(0, "socket-filter", &report.socket_filter,
 792                     "only show processor socket that match with this filter"),
 793         OPT_END()
 794         };
 795         struct perf_data_file file = {
 796                 .mode  = PERF_DATA_MODE_READ,
 797         };
 798         int ret = hists__init();
 799
 800         if (ret < 0)
 801                 return ret;
 802
 803         perf_config(report__config, &report);
 804
 805         argc = parse_options(argc, argv, options, report_usage, 0);
 806
 807         if (symbol_conf.vmlinux_name &&
 808             access(symbol_conf.vmlinux_name, R_OK)) {
 809                 pr_err("Invalid file: %s\n", symbol_conf.vmlinux_name);
 810                 return -EINVAL;
 811         }
 812         if (symbol_conf.kallsyms_name &&
 813             access(symbol_conf.kallsyms_name, R_OK)) {
 814                 pr_err("Invalid file: %s\n", symbol_conf.kallsyms_name);
 815                 return -EINVAL;
 816         }
 817
 818         if (report.use_stdio)
 819                 use_browser = 0;
 820         else if (report.use_tui)
 821                 use_browser = 1;
 822         else if (report.use_gtk)
 823                 use_browser = 2;
 824
 825         if (report.inverted_callchain)
 826                 callchain_param.order = ORDER_CALLER;
 827         if (symbol_conf.cumulate_callchain && !callchain_param.order_set)
 828                 callchain_param.order = ORDER_CALLER;
 829
 830         if (itrace_synth_opts.callchain &&
 831             (int)itrace_synth_opts.callchain_sz > report.max_stack)
 832                 report.max_stack = itrace_synth_opts.callchain_sz;
 833
 834         if (!input_name || !strlen(input_name)) {
 835                 if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
 836                         input_name = "-";
 837                 else
 838                         input_name = "perf.data";
 839         }
 840
 841         file.path  = input_name;
 842         file.force = symbol_conf.force;
 843
 844 repeat:
 845         session = perf_session__new(&file, false, &report.tool);
 846         if (session == NULL)
 847                 return -1;
 848
 849         if (report.queue_size) {
 850                 ordered_events__set_alloc_size(&session->ordered_events,
 851                                                report.queue_size);
 852         }
 853
 854         session->itrace_synth_opts = &itrace_synth_opts;
 855
 856         report.session = session;
 857
 858         has_br_stack = perf_header__has_feat(&session->header,
 859                                              HEADER_BRANCH_STACK);
 860
 861         if (itrace_synth_opts.last_branch)
 862                 has_br_stack = true;
 863
 864         /*
 865          * Branch mode is a tristate:
 866          * -1 means default, so decide based on the file having branch data.
 867          * 0/1 means the user chose a mode.
 868          */
 869         if (((branch_mode == -1 && has_br_stack) || branch_mode == 1) &&
 870             !branch_call_mode) {
 871                 sort__mode = SORT_MODE__BRANCH;
 872                 symbol_conf.cumulate_callchain = false;
 873         }
 874         if (branch_call_mode) {
 875                 callchain_param.key = CCKEY_ADDRESS;
 876                 callchain_param.branch_callstack = 1;
 877                 symbol_conf.use_callchain = true;
 878                 callchain_register_param(&callchain_param);
 879                 if (sort_order == NULL)
 880                         sort_order = "srcline,symbol,dso";
 881         }
 882
 883         if (report.mem_mode) {
 884                 if (sort__mode == SORT_MODE__BRANCH) {
 885                         pr_err("branch and mem mode incompatible\n");
 886                         goto error;
 887                 }
 888                 sort__mode = SORT_MODE__MEMORY;
 889                 symbol_conf.cumulate_callchain = false;
 890         }
 891
 892         if (setup_sorting() < 0) {
 893                 if (sort_order)
 894                         parse_options_usage(report_usage, options, "s", 1);
 895                 if (field_order)
 896                         parse_options_usage(sort_order ? NULL : report_usage,
 897                                             options, "F", 1);
 898                 goto error;
 899         }
 900
 901         /* Force tty output for header output and per-thread stat. */
 902         if (report.header || report.header_only || report.show_threads)
 903                 use_browser = 0;
 904
 905         if (strcmp(input_name, "-") != 0)
 906                 setup_browser(true);
 907         else
 908                 use_browser = 0;
 909
 910         if (report.header || report.header_only) {
 911                 perf_session__fprintf_info(session, stdout,
 912                                            report.show_full_info);
 913                 if (report.header_only) {
 914                         ret = 0;
 915                         goto error;
 916                 }
 917         } else if (use_browser == 0) {
 918                 fputs("# To display the perf.data header info, please use --header/--header-only options.\n#\n",
 919                       stdout);
 920         }
 921
 922         /*
 923          * Only in the TUI browser we are doing integrated annotation,
 924          * so don't allocate extra space that won't be used in the stdio
 925          * implementation.
 926          */
 927         if (ui__has_annotation()) {
 928                 symbol_conf.priv_size = sizeof(struct annotation);
 929                 machines__set_symbol_filter(&session->machines,
 930                                             symbol__annotate_init);
 931                 /*
 932                  * For searching by name on the "Browse map details".
 933                  * providing it only in verbose mode not to bloat too
 934                  * much struct symbol.
 935                  */
 936                 if (verbose) {
 937                         /*
 938                          * XXX: Need to provide a less kludgy way to ask for
 939                          * more space per symbol, the u32 is for the index on
 940                          * the ui browser.
 941                          * See symbol__browser_index.
 942                          */
 943                         symbol_conf.priv_size += sizeof(u32);
 944                         symbol_conf.sort_by_name = true;
 945                 }
 946         }
 947
 948         if (symbol__init(&session->header.env) < 0)
 949                 goto error;
 950
 951         if (argc) {
 952                 /*
 953                  * Special case: if there's an argument left then assume that
 954                  * it's a symbol filter:
 955                  */
 956                 if (argc > 1)
 957                         usage_with_options(report_usage, options);
 958
 959                 report.symbol_filter_str = argv[0];
 960         }
 961
 962         sort__setup_elide(stdout);
 963
 964         ret = __cmd_report(&report);
 965         if (ret == K_SWITCH_INPUT_DATA) {
 966                 perf_session__delete(session);
 967                 goto repeat;
 968         } else
 969                 ret = 0;
 970
 971 error:
 972         perf_session__delete(session);
 973         return ret;
 974 }