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