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