tools/perf/builtin-report.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * builtin-report.c
   4  *
   5  * Builtin report command: Analyze the perf.data input file,
   6  * look up and read DSOs and symbol information and display
   7  * a histogram of results, along various sorting keys.
   8  */
   9 #include "builtin.h"
  10
  11 #include "util/util.h"
  12 #include "util/config.h"
  13
  14 #include "util/annotate.h"
  15 #include "util/color.h"
  16 #include <linux/list.h>
  17 #include <linux/rbtree.h>
  18 #include <linux/err.h>
  19 #include "util/symbol.h"
  20 #include "util/callchain.h"
  21 #include "util/values.h"
  22
  23 #include "perf.h"
  24 #include "util/debug.h"
  25 #include "util/evlist.h"
  26 #include "util/evsel.h"
  27 #include "util/header.h"
  28 #include "util/session.h"
  29 #include "util/tool.h"
  30
  31 #include <subcmd/parse-options.h>
  32 #include <subcmd/exec-cmd.h>
  33 #include "util/parse-events.h"
  34
  35 #include "util/thread.h"
  36 #include "util/sort.h"
  37 #include "util/hist.h"
  38 #include "util/data.h"
  39 #include "arch/common.h"
  40 #include "util/time-utils.h"
  41 #include "util/auxtrace.h"
  42 #include "util/units.h"
  43 #include "util/branch.h"
  44
  45 #include <dlfcn.h>
  46 #include <errno.h>
  47 #include <inttypes.h>
  48 #include <regex.h>
  49 #include <signal.h>
  50 #include <linux/bitmap.h>
  51 #include <linux/stringify.h>
  52 #include <sys/types.h>
  53 #include <sys/stat.h>
  54 #include <unistd.h>
  55 #include <linux/mman.h>
  56
  57 struct report {
  58         struct perf_tool        tool;
  59         struct perf_session     *session;
  60         bool                    use_tui, use_gtk, use_stdio;
  61         bool                    show_full_info;
  62         bool                    show_threads;
  63         bool                    inverted_callchain;
  64         bool                    mem_mode;
  65         bool                    stats_mode;
  66         bool                    tasks_mode;
  67         bool                    mmaps_mode;
  68         bool                    header;
  69         bool                    header_only;
  70         bool                    nonany_branch_mode;
  71         bool                    group_set;
  72         int                     max_stack;
  73         struct perf_read_values show_threads_values;
  74         const char              *pretty_printing_style;
  75         const char              *cpu_list;
  76         const char              *symbol_filter_str;
  77         const char              *time_str;
  78         struct perf_time_interval *ptime_range;
  79         int                     range_size;
  80         int                     range_num;
  81         float                   min_percent;
  82         u64                     nr_entries;
  83         u64                     queue_size;
  84         int                     socket_filter;
  85         DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
  86         struct branch_type_stat brtype_stat;
  87 };
  88
  89 static int report__config(const char *var, const char *value, void *cb)
  90 {
  91         struct report *rep = cb;
  92
  93         if (!strcmp(var, "report.group")) {
  94                 symbol_conf.event_group = perf_config_bool(var, value);
  95                 return 0;
  96         }
  97         if (!strcmp(var, "report.percent-limit")) {
  98                 double pcnt = strtof(value, NULL);
  99
 100                 rep->min_percent = pcnt;
 101                 callchain_param.min_percent = pcnt;
 102                 return 0;
 103         }
 104         if (!strcmp(var, "report.children")) {
 105                 symbol_conf.cumulate_callchain = perf_config_bool(var, value);
 106                 return 0;
 107         }
 108         if (!strcmp(var, "report.queue-size"))
 109                 return perf_config_u64(&rep->queue_size, var, value);
 110
 111         if (!strcmp(var, "report.sort_order")) {
 112                 default_sort_order = strdup(value);
 113                 return 0;
 114         }
 115
 116         return 0;
 117 }
 118
 119 static int hist_iter__report_callback(struct hist_entry_iter *iter,
 120                                       struct addr_location *al, bool single,
 121                                       void *arg)
 122 {
 123         int err = 0;
 124         struct report *rep = arg;
 125         struct hist_entry *he = iter->he;
 126         struct perf_evsel *evsel = iter->evsel;
 127         struct perf_sample *sample = iter->sample;
 128         struct mem_info *mi;
 129         struct branch_info *bi;
 130
 131         if (!ui__has_annotation())
 132                 return 0;
 133
 134         hist__account_cycles(sample->branch_stack, al, sample,
 135                              rep->nonany_branch_mode);
 136
 137         if (sort__mode == SORT_MODE__BRANCH) {
 138                 bi = he->branch_info;
 139                 err = addr_map_symbol__inc_samples(&bi->from, sample, evsel->idx);
 140                 if (err)
 141                         goto out;
 142
 143                 err = addr_map_symbol__inc_samples(&bi->to, sample, evsel->idx);
 144
 145         } else if (rep->mem_mode) {
 146                 mi = he->mem_info;
 147                 err = addr_map_symbol__inc_samples(&mi->daddr, sample, evsel->idx);
 148                 if (err)
 149                         goto out;
 150
 151                 err = hist_entry__inc_addr_samples(he, sample, evsel->idx, al->addr);
 152
 153         } else if (symbol_conf.cumulate_callchain) {
 154                 if (single)
 155                         err = hist_entry__inc_addr_samples(he, sample, evsel->idx,
 156                                                            al->addr);
 157         } else {
 158                 err = hist_entry__inc_addr_samples(he, sample, evsel->idx, al->addr);
 159         }
 160
 161 out:
 162         return err;
 163 }
 164
 165 static int hist_iter__branch_callback(struct hist_entry_iter *iter,
 166                                       struct addr_location *al __maybe_unused,
 167                                       bool single __maybe_unused,
 168                                       void *arg)
 169 {
 170         struct hist_entry *he = iter->he;
 171         struct report *rep = arg;
 172         struct branch_info *bi;
 173         struct perf_sample *sample = iter->sample;
 174         struct perf_evsel *evsel = iter->evsel;
 175         int err;
 176
 177         if (!ui__has_annotation())
 178                 return 0;
 179
 180         hist__account_cycles(sample->branch_stack, al, sample,
 181                              rep->nonany_branch_mode);
 182
 183         bi = he->branch_info;
 184         err = addr_map_symbol__inc_samples(&bi->from, sample, evsel->idx);
 185         if (err)
 186                 goto out;
 187
 188         err = addr_map_symbol__inc_samples(&bi->to, sample, evsel->idx);
 189
 190         branch_type_count(&rep->brtype_stat, &bi->flags,
 191                           bi->from.addr, bi->to.addr);
 192
 193 out:
 194         return err;
 195 }
 196
 197 /*
 198  * Events in data file are not collect in groups, but we still want
 199  * the group display. Set the artificial group and set the leader's
 200  * forced_leader flag to notify the display code.
 201  */
 202 static void setup_forced_leader(struct report *report,
 203                                 struct perf_evlist *evlist)
 204 {
 205         if (report->group_set && !evlist->nr_groups) {
 206                 struct perf_evsel *leader = perf_evlist__first(evlist);
 207
 208                 perf_evlist__set_leader(evlist);
 209                 leader->forced_leader = true;
 210         }
 211 }
 212
 213 static int process_feature_event(struct perf_tool *tool,
 214                                  union perf_event *event,
 215                                  struct perf_session *session __maybe_unused)
 216 {
 217         struct report *rep = container_of(tool, struct report, tool);
 218
 219         if (event->feat.feat_id < HEADER_LAST_FEATURE)
 220                 return perf_event__process_feature(tool, event, session);
 221
 222         if (event->feat.feat_id != HEADER_LAST_FEATURE) {
 223                 pr_err("failed: wrong feature ID: %" PRIu64 "\n",
 224                        event->feat.feat_id);
 225                 return -1;
 226         }
 227
 228         /*
 229          * All features are received, we can force the
 230          * group if needed.
 231          */
 232         setup_forced_leader(rep, session->evlist);
 233         return 0;
 234 }
 235
 236 static int process_sample_event(struct perf_tool *tool,
 237                                 union perf_event *event,
 238                                 struct perf_sample *sample,
 239                                 struct perf_evsel *evsel,
 240                                 struct machine *machine)
 241 {
 242         struct report *rep = container_of(tool, struct report, tool);
 243         struct addr_location al;
 244         struct hist_entry_iter iter = {
 245                 .evsel                  = evsel,
 246                 .sample                 = sample,
 247                 .hide_unresolved        = symbol_conf.hide_unresolved,
 248                 .add_entry_cb           = hist_iter__report_callback,
 249         };
 250         int ret = 0;
 251
 252         if (perf_time__ranges_skip_sample(rep->ptime_range, rep->range_num,
 253                                           sample->time)) {
 254                 return 0;
 255         }
 256
 257         if (machine__resolve(machine, &al, sample) < 0) {
 258                 pr_debug("problem processing %d event, skipping it.\n",
 259                          event->header.type);
 260                 return -1;
 261         }
 262
 263         if (symbol_conf.hide_unresolved && al.sym == NULL)
 264                 goto out_put;
 265
 266         if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap))
 267                 goto out_put;
 268
 269         if (sort__mode == SORT_MODE__BRANCH) {
 270                 /*
 271                  * A non-synthesized event might not have a branch stack if
 272                  * branch stacks have been synthesized (using itrace options).
 273                  */
 274                 if (!sample->branch_stack)
 275                         goto out_put;
 276
 277                 iter.add_entry_cb = hist_iter__branch_callback;
 278                 iter.ops = &hist_iter_branch;
 279         } else if (rep->mem_mode) {
 280                 iter.ops = &hist_iter_mem;
 281         } else if (symbol_conf.cumulate_callchain) {
 282                 iter.ops = &hist_iter_cumulative;
 283         } else {
 284                 iter.ops = &hist_iter_normal;
 285         }
 286
 287         if (al.map != NULL)
 288                 al.map->dso->hit = 1;
 289
 290         ret = hist_entry_iter__add(&iter, &al, rep->max_stack, rep);
 291         if (ret < 0)
 292                 pr_debug("problem adding hist entry, skipping event\n");
 293 out_put:
 294         addr_location__put(&al);
 295         return ret;
 296 }
 297
 298 static int process_read_event(struct perf_tool *tool,
 299                               union perf_event *event,
 300                               struct perf_sample *sample __maybe_unused,
 301                               struct perf_evsel *evsel,
 302                               struct machine *machine __maybe_unused)
 303 {
 304         struct report *rep = container_of(tool, struct report, tool);
 305
 306         if (rep->show_threads) {
 307                 const char *name = evsel ? perf_evsel__name(evsel) : "unknown";
 308                 int err = perf_read_values_add_value(&rep->show_threads_values,
 309                                            event->read.pid, event->read.tid,
 310                                            evsel->idx,
 311                                            name,
 312                                            event->read.value);
 313
 314                 if (err)
 315                         return err;
 316         }
 317
 318         return 0;
 319 }
 320
 321 /* For pipe mode, sample_type is not currently set */
 322 static int report__setup_sample_type(struct report *rep)
 323 {
 324         struct perf_session *session = rep->session;
 325         u64 sample_type = perf_evlist__combined_sample_type(session->evlist);
 326         bool is_pipe = perf_data__is_pipe(session->data);
 327
 328         if (session->itrace_synth_opts->callchain ||
 329             (!is_pipe &&
 330              perf_header__has_feat(&session->header, HEADER_AUXTRACE) &&
 331              !session->itrace_synth_opts->set))
 332                 sample_type |= PERF_SAMPLE_CALLCHAIN;
 333
 334         if (session->itrace_synth_opts->last_branch)
 335                 sample_type |= PERF_SAMPLE_BRANCH_STACK;
 336
 337         if (!is_pipe && !(sample_type & PERF_SAMPLE_CALLCHAIN)) {
 338                 if (perf_hpp_list.parent) {
 339                         ui__error("Selected --sort parent, but no "
 340                                     "callchain data. Did you call "
 341                                     "'perf record' without -g?\n");
 342                         return -EINVAL;
 343                 }
 344                 if (symbol_conf.use_callchain &&
 345                         !symbol_conf.show_branchflag_count) {
 346                         ui__error("Selected -g or --branch-history.\n"
 347                                   "But no callchain or branch data.\n"
 348                                   "Did you call 'perf record' without -g or -b?\n");
 349                         return -1;
 350                 }
 351         } else if (!callchain_param.enabled &&
 352                    callchain_param.mode != CHAIN_NONE &&
 353                    !symbol_conf.use_callchain) {
 354                         symbol_conf.use_callchain = true;
 355                         if (callchain_register_param(&callchain_param) < 0) {
 356                                 ui__error("Can't register callchain params.\n");
 357                                 return -EINVAL;
 358                         }
 359         }
 360
 361         if (symbol_conf.cumulate_callchain) {
 362                 /* Silently ignore if callchain is missing */
 363                 if (!(sample_type & PERF_SAMPLE_CALLCHAIN)) {
 364                         symbol_conf.cumulate_callchain = false;
 365                         perf_hpp__cancel_cumulate();
 366                 }
 367         }
 368
 369         if (sort__mode == SORT_MODE__BRANCH) {
 370                 if (!is_pipe &&
 371                     !(sample_type & PERF_SAMPLE_BRANCH_STACK)) {
 372                         ui__error("Selected -b but no branch data. "
 373                                   "Did you call perf record without -b?\n");
 374                         return -1;
 375                 }
 376         }
 377
 378         if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain) {
 379                 if ((sample_type & PERF_SAMPLE_REGS_USER) &&
 380                     (sample_type & PERF_SAMPLE_STACK_USER)) {
 381                         callchain_param.record_mode = CALLCHAIN_DWARF;
 382                         dwarf_callchain_users = true;
 383                 } else if (sample_type & PERF_SAMPLE_BRANCH_STACK)
 384                         callchain_param.record_mode = CALLCHAIN_LBR;
 385                 else
 386                         callchain_param.record_mode = CALLCHAIN_FP;
 387         }
 388
 389         /* ??? handle more cases than just ANY? */
 390         if (!(perf_evlist__combined_branch_type(session->evlist) &
 391                                 PERF_SAMPLE_BRANCH_ANY))
 392                 rep->nonany_branch_mode = true;
 393
 394         return 0;
 395 }
 396
 397 static void sig_handler(int sig __maybe_unused)
 398 {
 399         session_done = 1;
 400 }
 401
 402 static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report *rep,
 403                                               const char *evname, FILE *fp)
 404 {
 405         size_t ret;
 406         char unit;
 407         unsigned long nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE];
 408         u64 nr_events = hists->stats.total_period;
 409         struct perf_evsel *evsel = hists_to_evsel(hists);
 410         char buf[512];
 411         size_t size = sizeof(buf);
 412         int socked_id = hists->socket_filter;
 413
 414         if (quiet)
 415                 return 0;
 416
 417         if (symbol_conf.filter_relative) {
 418                 nr_samples = hists->stats.nr_non_filtered_samples;
 419                 nr_events = hists->stats.total_non_filtered_period;
 420         }
 421
 422         if (perf_evsel__is_group_event(evsel)) {
 423                 struct perf_evsel *pos;
 424
 425                 perf_evsel__group_desc(evsel, buf, size);
 426                 evname = buf;
 427
 428                 for_each_group_member(pos, evsel) {
 429                         const struct hists *pos_hists = evsel__hists(pos);
 430
 431                         if (symbol_conf.filter_relative) {
 432                                 nr_samples += pos_hists->stats.nr_non_filtered_samples;
 433                                 nr_events += pos_hists->stats.total_non_filtered_period;
 434                         } else {
 435                                 nr_samples += pos_hists->stats.nr_events[PERF_RECORD_SAMPLE];
 436                                 nr_events += pos_hists->stats.total_period;
 437                         }
 438                 }
 439         }
 440
 441         nr_samples = convert_unit(nr_samples, &unit);
 442         ret = fprintf(fp, "# Samples: %lu%c", nr_samples, unit);
 443         if (evname != NULL) {
 444                 ret += fprintf(fp, " of event%s '%s'",
 445                                evsel->nr_members > 1 ? "s" : "", evname);
 446         }
 447
 448         if (rep->time_str)
 449                 ret += fprintf(fp, " (time slices: %s)", rep->time_str);
 450
 451         if (symbol_conf.show_ref_callgraph &&
 452             strstr(evname, "call-graph=no")) {
 453                 ret += fprintf(fp, ", show reference callgraph");
 454         }
 455
 456         if (rep->mem_mode) {
 457                 ret += fprintf(fp, "\n# Total weight : %" PRIu64, nr_events);
 458                 ret += fprintf(fp, "\n# Sort order   : %s", sort_order ? : default_mem_sort_order);
 459         } else
 460                 ret += fprintf(fp, "\n# Event count (approx.): %" PRIu64, nr_events);
 461
 462         if (socked_id > -1)
 463                 ret += fprintf(fp, "\n# Processor Socket: %d", socked_id);
 464
 465         return ret + fprintf(fp, "\n#\n");
 466 }
 467
 468 static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist,
 469                                          struct report *rep,
 470                                          const char *help)
 471 {
 472         struct perf_evsel *pos;
 473
 474         if (!quiet) {
 475                 fprintf(stdout, "#\n# Total Lost Samples: %" PRIu64 "\n#\n",
 476                         evlist->stats.total_lost_samples);
 477         }
 478
 479         evlist__for_each_entry(evlist, pos) {
 480                 struct hists *hists = evsel__hists(pos);
 481                 const char *evname = perf_evsel__name(pos);
 482
 483                 if (symbol_conf.event_group &&
 484                     !perf_evsel__is_group_leader(pos))
 485                         continue;
 486
 487                 hists__fprintf_nr_sample_events(hists, rep, evname, stdout);
 488                 hists__fprintf(hists, !quiet, 0, 0, rep->min_percent, stdout,
 489                                symbol_conf.use_callchain ||
 490                                symbol_conf.show_branchflag_count);
 491                 fprintf(stdout, "\n\n");
 492         }
 493
 494         if (!quiet)
 495                 fprintf(stdout, "#\n# (%s)\n#\n", help);
 496
 497         if (rep->show_threads) {
 498                 bool style = !strcmp(rep->pretty_printing_style, "raw");
 499                 perf_read_values_display(stdout, &rep->show_threads_values,
 500                                          style);
 501                 perf_read_values_destroy(&rep->show_threads_values);
 502         }
 503
 504         if (sort__mode == SORT_MODE__BRANCH)
 505                 branch_type_stat_display(stdout, &rep->brtype_stat);
 506
 507         return 0;
 508 }
 509
 510 static void report__warn_kptr_restrict(const struct report *rep)
 511 {
 512         struct map *kernel_map = machine__kernel_map(&rep->session->machines.host);
 513         struct kmap *kernel_kmap = kernel_map ? map__kmap(kernel_map) : NULL;
 514
 515         if (perf_evlist__exclude_kernel(rep->session->evlist))
 516                 return;
 517
 518         if (kernel_map == NULL ||
 519             (kernel_map->dso->hit &&
 520              (kernel_kmap->ref_reloc_sym == NULL ||
 521               kernel_kmap->ref_reloc_sym->addr == 0))) {
 522                 const char *desc =
 523                     "As no suitable kallsyms nor vmlinux was found, kernel samples\n"
 524                     "can't be resolved.";
 525
 526                 if (kernel_map) {
 527                         const struct dso *kdso = kernel_map->dso;
 528                         if (!RB_EMPTY_ROOT(&kdso->symbols[MAP__FUNCTION])) {
 529                                 desc = "If some relocation was applied (e.g. "
 530                                        "kexec) symbols may be misresolved.";
 531                         }
 532                 }
 533
 534                 ui__warning(
 535 "Kernel address maps (/proc/{kallsyms,modules}) were restricted.\n\n"
 536 "Check /proc/sys/kernel/kptr_restrict before running 'perf record'.\n\n%s\n\n"
 537 "Samples in kernel modules can't be resolved as well.\n\n",
 538                 desc);
 539         }
 540 }
 541
 542 static int report__gtk_browse_hists(struct report *rep, const char *help)
 543 {
 544         int (*hist_browser)(struct perf_evlist *evlist, const char *help,
 545                             struct hist_browser_timer *timer, float min_pcnt);
 546
 547         hist_browser = dlsym(perf_gtk_handle, "perf_evlist__gtk_browse_hists");
 548
 549         if (hist_browser == NULL) {
 550                 ui__error("GTK browser not found!\n");
 551                 return -1;
 552         }
 553
 554         return hist_browser(rep->session->evlist, help, NULL, rep->min_percent);
 555 }
 556
 557 static int report__browse_hists(struct report *rep)
 558 {
 559         int ret;
 560         struct perf_session *session = rep->session;
 561         struct perf_evlist *evlist = session->evlist;
 562         const char *help = perf_tip(system_path(TIPDIR));
 563
 564         if (help == NULL) {
 565                 /* fallback for people who don't install perf ;-) */
 566                 help = perf_tip(DOCDIR);
 567                 if (help == NULL)
 568                         help = "Cannot load tips.txt file, please install perf!";
 569         }
 570
 571         switch (use_browser) {
 572         case 1:
 573                 ret = perf_evlist__tui_browse_hists(evlist, help, NULL,
 574                                                     rep->min_percent,
 575                                                     &session->header.env,
 576                                                     true);
 577                 /*
 578                  * Usually "ret" is the last pressed key, and we only
 579                  * care if the key notifies us to switch data file.
 580                  */
 581                 if (ret != K_SWITCH_INPUT_DATA)
 582                         ret = 0;
 583                 break;
 584         case 2:
 585                 ret = report__gtk_browse_hists(rep, help);
 586                 break;
 587         default:
 588                 ret = perf_evlist__tty_browse_hists(evlist, rep, help);
 589                 break;
 590         }
 591
 592         return ret;
 593 }
 594
 595 static int report__collapse_hists(struct report *rep)
 596 {
 597         struct ui_progress prog;
 598         struct perf_evsel *pos;
 599         int ret = 0;
 600
 601         ui_progress__init(&prog, rep->nr_entries, "Merging related events...");
 602
 603         evlist__for_each_entry(rep->session->evlist, pos) {
 604                 struct hists *hists = evsel__hists(pos);
 605
 606                 if (pos->idx == 0)
 607                         hists->symbol_filter_str = rep->symbol_filter_str;
 608
 609                 hists->socket_filter = rep->socket_filter;
 610
 611                 ret = hists__collapse_resort(hists, &prog);
 612                 if (ret < 0)
 613                         break;
 614
 615                 /* Non-group events are considered as leader */
 616                 if (symbol_conf.event_group &&
 617                     !perf_evsel__is_group_leader(pos)) {
 618                         struct hists *leader_hists = evsel__hists(pos->leader);
 619
 620                         hists__match(leader_hists, hists);
 621                         hists__link(leader_hists, hists);
 622                 }
 623         }
 624
 625         ui_progress__finish();
 626         return ret;
 627 }
 628
 629 static void report__output_resort(struct report *rep)
 630 {
 631         struct ui_progress prog;
 632         struct perf_evsel *pos;
 633
 634         ui_progress__init(&prog, rep->nr_entries, "Sorting events for output...");
 635
 636         evlist__for_each_entry(rep->session->evlist, pos)
 637                 perf_evsel__output_resort(pos, &prog);
 638
 639         ui_progress__finish();
 640 }
 641
 642 static void stats_setup(struct report *rep)
 643 {
 644         memset(&rep->tool, 0, sizeof(rep->tool));
 645         rep->tool.no_warn = true;
 646 }
 647
 648 static int stats_print(struct report *rep)
 649 {
 650         struct perf_session *session = rep->session;
 651
 652         perf_session__fprintf_nr_events(session, stdout);
 653         return 0;
 654 }
 655
 656 static void tasks_setup(struct report *rep)
 657 {
 658         memset(&rep->tool, 0, sizeof(rep->tool));
 659         rep->tool.ordered_events = true;
 660         if (rep->mmaps_mode) {
 661                 rep->tool.mmap = perf_event__process_mmap;
 662                 rep->tool.mmap2 = perf_event__process_mmap2;
 663         }
 664         rep->tool.comm = perf_event__process_comm;
 665         rep->tool.exit = perf_event__process_exit;
 666         rep->tool.fork = perf_event__process_fork;
 667         rep->tool.no_warn = true;
 668 }
 669
 670 struct task {
 671         struct thread           *thread;
 672         struct list_head         list;
 673         struct list_head         children;
 674 };
 675
 676 static struct task *tasks_list(struct task *task, struct machine *machine)
 677 {
 678         struct thread *parent_thread, *thread = task->thread;
 679         struct task   *parent_task;
 680
 681         /* Already listed. */
 682         if (!list_empty(&task->list))
 683                 return NULL;
 684
 685         /* Last one in the chain. */
 686         if (thread->ppid == -1)
 687                 return task;
 688
 689         parent_thread = machine__find_thread(machine, -1, thread->ppid);
 690         if (!parent_thread)
 691                 return ERR_PTR(-ENOENT);
 692
 693         parent_task = thread__priv(parent_thread);
 694         list_add_tail(&task->list, &parent_task->children);
 695         return tasks_list(parent_task, machine);
 696 }
 697
 698 static size_t maps__fprintf_task(struct maps *maps, int indent, FILE *fp)
 699 {
 700         size_t printed = 0;
 701         struct rb_node *nd;
 702
 703         for (nd = rb_first(&maps->entries); nd; nd = rb_next(nd)) {
 704                 struct map *map = rb_entry(nd, struct map, rb_node);
 705
 706                 printed += fprintf(fp, "%*s  %" PRIx64 "-%" PRIx64 " %c%c%c%c %08" PRIx64 " %" PRIu64 " %s\n",
 707                                    indent, "", map->start, map->end,
 708                                    map->prot & PROT_READ ? 'r' : '-',
 709                                    map->prot & PROT_WRITE ? 'w' : '-',
 710                                    map->prot & PROT_EXEC ? 'x' : '-',
 711                                    map->flags & MAP_SHARED ? 's' : 'p',
 712                                    map->pgoff,
 713                                    map->ino, map->dso->name);
 714         }
 715
 716         return printed;
 717 }
 718
 719 static int map_groups__fprintf_task(struct map_groups *mg, int indent, FILE *fp)
 720 {
 721         int printed = 0, i;
 722         for (i = 0; i < MAP__NR_TYPES; ++i)
 723                 printed += maps__fprintf_task(&mg->maps[i], indent, fp);
 724         return printed;
 725 }
 726
 727 static void task__print_level(struct task *task, FILE *fp, int level)
 728 {
 729         struct thread *thread = task->thread;
 730         struct task *child;
 731         int comm_indent = fprintf(fp, "  %8d %8d %8d |%*s",
 732                                   thread->pid_, thread->tid, thread->ppid,
 733                                   level, "");
 734
 735         fprintf(fp, "%s\n", thread__comm_str(thread));
 736
 737         map_groups__fprintf_task(thread->mg, comm_indent, fp);
 738
 739         if (!list_empty(&task->children)) {
 740                 list_for_each_entry(child, &task->children, list)
 741                         task__print_level(child, fp, level + 1);
 742         }
 743 }
 744
 745 static int tasks_print(struct report *rep, FILE *fp)
 746 {
 747         struct perf_session *session = rep->session;
 748         struct machine      *machine = &session->machines.host;
 749         struct task *tasks, *task;
 750         unsigned int nr = 0, itask = 0, i;
 751         struct rb_node *nd;
 752         LIST_HEAD(list);
 753
 754         /*
 755          * No locking needed while accessing machine->threads,
 756          * because --tasks is single threaded command.
 757          */
 758
 759         /* Count all the threads. */
 760         for (i = 0; i < THREADS__TABLE_SIZE; i++)
 761                 nr += machine->threads[i].nr;
 762
 763         tasks = malloc(sizeof(*tasks) * nr);
 764         if (!tasks)
 765                 return -ENOMEM;
 766
 767         for (i = 0; i < THREADS__TABLE_SIZE; i++) {
 768                 struct threads *threads = &machine->threads[i];
 769
 770                 for (nd = rb_first(&threads->entries); nd; nd = rb_next(nd)) {
 771                         task = tasks + itask++;
 772
 773                         task->thread = rb_entry(nd, struct thread, rb_node);
 774                         INIT_LIST_HEAD(&task->children);
 775                         INIT_LIST_HEAD(&task->list);
 776                         thread__set_priv(task->thread, task);
 777                 }
 778         }
 779
 780         /*
 781          * Iterate every task down to the unprocessed parent
 782          * and link all in task children list. Task with no
 783          * parent is added into 'list'.
 784          */
 785         for (itask = 0; itask < nr; itask++) {
 786                 task = tasks + itask;
 787
 788                 if (!list_empty(&task->list))
 789                         continue;
 790
 791                 task = tasks_list(task, machine);
 792                 if (IS_ERR(task)) {
 793                         pr_err("Error: failed to process tasks\n");
 794                         free(tasks);
 795                         return PTR_ERR(task);
 796                 }
 797
 798                 if (task)
 799                         list_add_tail(&task->list, &list);
 800         }
 801
 802         fprintf(fp, "# %8s %8s %8s  %s\n", "pid", "tid", "ppid", "comm");
 803
 804         list_for_each_entry(task, &list, list)
 805                 task__print_level(task, fp, 0);
 806
 807         free(tasks);
 808         return 0;
 809 }
 810
 811 static int __cmd_report(struct report *rep)
 812 {
 813         int ret;
 814         struct perf_session *session = rep->session;
 815         struct perf_evsel *pos;
 816         struct perf_data *data = session->data;
 817
 818         signal(SIGINT, sig_handler);
 819
 820         if (rep->cpu_list) {
 821                 ret = perf_session__cpu_bitmap(session, rep->cpu_list,
 822                                                rep->cpu_bitmap);
 823                 if (ret) {
 824                         ui__error("failed to set cpu bitmap\n");
 825                         return ret;
 826                 }
 827                 session->itrace_synth_opts->cpu_bitmap = rep->cpu_bitmap;
 828         }
 829
 830         if (rep->show_threads) {
 831                 ret = perf_read_values_init(&rep->show_threads_values);
 832                 if (ret)
 833                         return ret;
 834         }
 835
 836         ret = report__setup_sample_type(rep);
 837         if (ret) {
 838                 /* report__setup_sample_type() already showed error message */
 839                 return ret;
 840         }
 841
 842         if (rep->stats_mode)
 843                 stats_setup(rep);
 844
 845         if (rep->tasks_mode)
 846                 tasks_setup(rep);
 847
 848         ret = perf_session__process_events(session);
 849         if (ret) {
 850                 ui__error("failed to process sample\n");
 851                 return ret;
 852         }
 853
 854         if (rep->stats_mode)
 855                 return stats_print(rep);
 856
 857         if (rep->tasks_mode)
 858                 return tasks_print(rep, stdout);
 859
 860         report__warn_kptr_restrict(rep);
 861
 862         evlist__for_each_entry(session->evlist, pos)
 863                 rep->nr_entries += evsel__hists(pos)->nr_entries;
 864
 865         if (use_browser == 0) {
 866                 if (verbose > 3)
 867                         perf_session__fprintf(session, stdout);
 868
 869                 if (verbose > 2)
 870                         perf_session__fprintf_dsos(session, stdout);
 871
 872                 if (dump_trace) {
 873                         perf_session__fprintf_nr_events(session, stdout);
 874                         perf_evlist__fprintf_nr_events(session->evlist, stdout);
 875                         return 0;
 876                 }
 877         }
 878
 879         ret = report__collapse_hists(rep);
 880         if (ret) {
 881                 ui__error("failed to process hist entry\n");
 882                 return ret;
 883         }
 884
 885         if (session_done())
 886                 return 0;
 887
 888         /*
 889          * recalculate number of entries after collapsing since it
 890          * might be changed during the collapse phase.
 891          */
 892         rep->nr_entries = 0;
 893         evlist__for_each_entry(session->evlist, pos)
 894                 rep->nr_entries += evsel__hists(pos)->nr_entries;
 895
 896         if (rep->nr_entries == 0) {
 897                 ui__error("The %s file has no samples!\n", data->file.path);
 898                 return 0;
 899         }
 900
 901         report__output_resort(rep);
 902
 903         return report__browse_hists(rep);
 904 }
 905
 906 static int
 907 report_parse_callchain_opt(const struct option *opt, const char *arg, int unset)
 908 {
 909         struct callchain_param *callchain = opt->value;
 910
 911         callchain->enabled = !unset;
 912         /*
 913          * --no-call-graph
 914          */
 915         if (unset) {
 916                 symbol_conf.use_callchain = false;
 917                 callchain->mode = CHAIN_NONE;
 918                 return 0;
 919         }
 920
 921         return parse_callchain_report_opt(arg);
 922 }
 923
 924 int
 925 report_parse_ignore_callees_opt(const struct option *opt __maybe_unused,
 926                                 const char *arg, int unset __maybe_unused)
 927 {
 928         if (arg) {
 929                 int err = regcomp(&ignore_callees_regex, arg, REG_EXTENDED);
 930                 if (err) {
 931                         char buf[BUFSIZ];
 932                         regerror(err, &ignore_callees_regex, buf, sizeof(buf));
 933                         pr_err("Invalid --ignore-callees regex: %s\n%s", arg, buf);
 934                         return -1;
 935                 }
 936                 have_ignore_callees = 1;
 937         }
 938
 939         return 0;
 940 }
 941
 942 static int
 943 parse_branch_mode(const struct option *opt,
 944                   const char *str __maybe_unused, int unset)
 945 {
 946         int *branch_mode = opt->value;
 947
 948         *branch_mode = !unset;
 949         return 0;
 950 }
 951
 952 static int
 953 parse_percent_limit(const struct option *opt, const char *str,
 954                     int unset __maybe_unused)
 955 {
 956         struct report *rep = opt->value;
 957         double pcnt = strtof(str, NULL);
 958
 959         rep->min_percent = pcnt;
 960         callchain_param.min_percent = pcnt;
 961         return 0;
 962 }
 963
 964 #define CALLCHAIN_DEFAULT_OPT  "graph,0.5,caller,function,percent"
 965
 966 const char report_callchain_help[] = "Display call graph (stack chain/backtrace):\n\n"
 967                                      CALLCHAIN_REPORT_HELP
 968                                      "\n\t\t\t\tDefault: " CALLCHAIN_DEFAULT_OPT;
 969
 970 int cmd_report(int argc, const char **argv)
 971 {
 972         struct perf_session *session;
 973         struct itrace_synth_opts itrace_synth_opts = { .set = 0, };
 974         struct stat st;
 975         bool has_br_stack = false;
 976         int branch_mode = -1;
 977         bool branch_call_mode = false;
 978         char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT;
 979         const char * const report_usage[] = {
 980                 "perf report [<options>]",
 981                 NULL
 982         };
 983         struct report report = {
 984                 .tool = {
 985                         .sample          = process_sample_event,
 986                         .mmap            = perf_event__process_mmap,
 987                         .mmap2           = perf_event__process_mmap2,
 988                         .comm            = perf_event__process_comm,
 989                         .namespaces      = perf_event__process_namespaces,
 990                         .exit            = perf_event__process_exit,
 991                         .fork            = perf_event__process_fork,
 992                         .lost            = perf_event__process_lost,
 993                         .read            = process_read_event,
 994                         .attr            = perf_event__process_attr,
 995                         .tracing_data    = perf_event__process_tracing_data,
 996                         .build_id        = perf_event__process_build_id,
 997                         .id_index        = perf_event__process_id_index,
 998                         .auxtrace_info   = perf_event__process_auxtrace_info,
 999                         .auxtrace        = perf_event__process_auxtrace,
1000                         .feature         = process_feature_event,
1001                         .ordered_events  = true,
1002                         .ordering_requires_timestamps = true,
1003                 },
1004                 .max_stack               = PERF_MAX_STACK_DEPTH,
1005                 .pretty_printing_style   = "normal",
1006                 .socket_filter           = -1,
1007         };
1008         const struct option options[] = {
1009         OPT_STRING('i', "input", &input_name, "file",
1010                     "input file name"),
1011         OPT_INCR('v', "verbose", &verbose,
1012                     "be more verbose (show symbol address, etc)"),
1013         OPT_BOOLEAN('q', "quiet", &quiet, "Do not show any message"),
1014         OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
1015                     "dump raw trace in ASCII"),
1016         OPT_BOOLEAN(0, "stats", &report.stats_mode, "Display event stats"),
1017         OPT_BOOLEAN(0, "tasks", &report.tasks_mode, "Display recorded tasks"),
1018         OPT_BOOLEAN(0, "mmaps", &report.mmaps_mode, "Display recorded tasks memory maps"),
1019         OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
1020                    "file", "vmlinux pathname"),
1021         OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux,
1022                     "don't load vmlinux even if found"),
1023         OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
1024                    "file", "kallsyms pathname"),
1025         OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"),
1026         OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
1027                     "load module symbols - WARNING: use only with -k and LIVE kernel"),
1028         OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
1029                     "Show a column with the number of samples"),
1030         OPT_BOOLEAN('T', "threads", &report.show_threads,
1031                     "Show per-thread event counters"),
1032         OPT_STRING(0, "pretty", &report.pretty_printing_style, "key",
1033                    "pretty printing style key: normal raw"),
1034         OPT_BOOLEAN(0, "tui", &report.use_tui, "Use the TUI interface"),
1035         OPT_BOOLEAN(0, "gtk", &report.use_gtk, "Use the GTK2 interface"),
1036         OPT_BOOLEAN(0, "stdio", &report.use_stdio,
1037                     "Use the stdio interface"),
1038         OPT_BOOLEAN(0, "header", &report.header, "Show data header."),
1039         OPT_BOOLEAN(0, "header-only", &report.header_only,
1040                     "Show only data header."),
1041         OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
1042                    "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..."
1043                    " Please refer the man page for the complete list."),
1044         OPT_STRING('F', "fields", &field_order, "key[,keys...]",
1045                    "output field(s): overhead, period, sample plus all of sort keys"),
1046         OPT_BOOLEAN(0, "show-cpu-utilization", &symbol_conf.show_cpu_utilization,
1047                     "Show sample percentage for different cpu modes"),
1048         OPT_BOOLEAN_FLAG(0, "showcpuutilization", &symbol_conf.show_cpu_utilization,
1049                     "Show sample percentage for different cpu modes", PARSE_OPT_HIDDEN),
1050         OPT_STRING('p', "parent", &parent_pattern, "regex",
1051                    "regex filter to identify parent, see: '--sort parent'"),
1052         OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other,
1053                     "Only display entries with parent-match"),
1054         OPT_CALLBACK_DEFAULT('g', "call-graph", &callchain_param,
1055                              "print_type,threshold[,print_limit],order,sort_key[,branch],value",
1056                              report_callchain_help, &report_parse_callchain_opt,
1057                              callchain_default_opt),
1058         OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain,
1059                     "Accumulate callchains of children and show total overhead as well"),
1060         OPT_INTEGER(0, "max-stack", &report.max_stack,
1061                     "Set the maximum stack depth when parsing the callchain, "
1062                     "anything beyond the specified depth will be ignored. "
1063                     "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)),
1064         OPT_BOOLEAN('G', "inverted", &report.inverted_callchain,
1065                     "alias for inverted call graph"),
1066         OPT_CALLBACK(0, "ignore-callees", NULL, "regex",
1067                    "ignore callees of these functions in call graphs",
1068                    report_parse_ignore_callees_opt),
1069         OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
1070                    "only consider symbols in these dsos"),
1071         OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
1072                    "only consider symbols in these comms"),
1073         OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]",
1074                    "only consider symbols in these pids"),
1075         OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]",
1076                    "only consider symbols in these tids"),
1077         OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
1078                    "only consider these symbols"),
1079         OPT_STRING(0, "symbol-filter", &report.symbol_filter_str, "filter",
1080                    "only show symbols that (partially) match with this filter"),
1081         OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str,
1082                    "width[,width...]",
1083                    "don't try to adjust column width, use these fixed values"),
1084         OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf.field_sep, "separator",
1085                    "separator for columns, no spaces will be added between "
1086                    "columns '.' is reserved."),
1087         OPT_BOOLEAN('U', "hide-unresolved", &symbol_conf.hide_unresolved,
1088                     "Only display entries resolved to a symbol"),
1089         OPT_CALLBACK(0, "symfs", NULL, "directory",
1090                      "Look for files with symbols relative to this directory",
1091                      symbol__config_symfs),
1092         OPT_STRING('C', "cpu", &report.cpu_list, "cpu",
1093                    "list of cpus to profile"),
1094         OPT_BOOLEAN('I', "show-info", &report.show_full_info,
1095                     "Display extended information about perf.data file"),
1096         OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src,
1097                     "Interleave source code with assembly code (default)"),
1098         OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw,
1099                     "Display raw encoding of assembly instructions (default)"),
1100         OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style",
1101                    "Specify disassembler style (e.g. -M intel for intel syntax)"),
1102         OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,
1103                     "Show a column with the sum of periods"),
1104         OPT_BOOLEAN_SET(0, "group", &symbol_conf.event_group, &report.group_set,
1105                     "Show event group information together"),
1106         OPT_CALLBACK_NOOPT('b', "branch-stack", &branch_mode, "",
1107                     "use branch records for per branch histogram filling",
1108                     parse_branch_mode),
1109         OPT_BOOLEAN(0, "branch-history", &branch_call_mode,
1110                     "add last branch records to call history"),
1111         OPT_STRING(0, "objdump", &objdump_path, "path",
1112                    "objdump binary to use for disassembly and annotations"),
1113         OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
1114                     "Disable symbol demangling"),
1115         OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel,
1116                     "Enable kernel symbol demangling"),
1117         OPT_BOOLEAN(0, "mem-mode", &report.mem_mode, "mem access profile"),
1118         OPT_CALLBACK(0, "percent-limit", &report, "percent",
1119                      "Don't show entries under that percent", parse_percent_limit),
1120         OPT_CALLBACK(0, "percentage", NULL, "relative|absolute",
1121                      "how to display percentage of filtered entries", parse_filter_percentage),
1122         OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts",
1123                             "Instruction Tracing options",
1124                             itrace_parse_synth_opts),
1125         OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename,
1126                         "Show full source file name path for source lines"),
1127         OPT_BOOLEAN(0, "show-ref-call-graph", &symbol_conf.show_ref_callgraph,
1128                     "Show callgraph from reference event"),
1129         OPT_INTEGER(0, "socket-filter", &report.socket_filter,
1130                     "only show processor socket that match with this filter"),
1131         OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace,
1132                     "Show raw trace event output (do not use print fmt or plugins)"),
1133         OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy,
1134                     "Show entries in a hierarchy"),
1135         OPT_CALLBACK_DEFAULT(0, "stdio-color", NULL, "mode",
1136                              "'always' (default), 'never' or 'auto' only applicable to --stdio mode",
1137                              stdio__config_color, "always"),
1138         OPT_STRING(0, "time", &report.time_str, "str",
1139                    "Time span of interest (start,stop)"),
1140         OPT_BOOLEAN(0, "inline", &symbol_conf.inline_name,
1141                     "Show inline function"),
1142         OPT_END()
1143         };
1144         struct perf_data data = {
1145                 .mode  = PERF_DATA_MODE_READ,
1146         };
1147         int ret = hists__init();
1148
1149         if (ret < 0)
1150                 return ret;
1151
1152         ret = perf_config(report__config, &report);
1153         if (ret)
1154                 return ret;
1155
1156         argc = parse_options(argc, argv, options, report_usage, 0);
1157         if (argc) {
1158                 /*
1159                  * Special case: if there's an argument left then assume that
1160                  * it's a symbol filter:
1161                  */
1162                 if (argc > 1)
1163                         usage_with_options(report_usage, options);
1164
1165                 report.symbol_filter_str = argv[0];
1166         }
1167
1168         if (report.mmaps_mode)
1169                 report.tasks_mode = true;
1170
1171         if (quiet)
1172                 perf_quiet_option();
1173
1174         if (symbol_conf.vmlinux_name &&
1175             access(symbol_conf.vmlinux_name, R_OK)) {
1176                 pr_err("Invalid file: %s\n", symbol_conf.vmlinux_name);
1177                 return -EINVAL;
1178         }
1179         if (symbol_conf.kallsyms_name &&
1180             access(symbol_conf.kallsyms_name, R_OK)) {
1181                 pr_err("Invalid file: %s\n", symbol_conf.kallsyms_name);
1182                 return -EINVAL;
1183         }
1184
1185         if (report.inverted_callchain)
1186                 callchain_param.order = ORDER_CALLER;
1187         if (symbol_conf.cumulate_callchain && !callchain_param.order_set)
1188                 callchain_param.order = ORDER_CALLER;
1189
1190         if (itrace_synth_opts.callchain &&
1191             (int)itrace_synth_opts.callchain_sz > report.max_stack)
1192                 report.max_stack = itrace_synth_opts.callchain_sz;
1193
1194         if (!input_name || !strlen(input_name)) {
1195                 if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
1196                         input_name = "-";
1197                 else
1198                         input_name = "perf.data";
1199         }
1200
1201         data.file.path = input_name;
1202         data.force     = symbol_conf.force;
1203
1204 repeat:
1205         session = perf_session__new(&data, false, &report.tool);
1206         if (session == NULL)
1207                 return -1;
1208
1209         if (report.queue_size) {
1210                 ordered_events__set_alloc_size(&session->ordered_events,
1211                                                report.queue_size);
1212         }
1213
1214         session->itrace_synth_opts = &itrace_synth_opts;
1215
1216         report.session = session;
1217
1218         has_br_stack = perf_header__has_feat(&session->header,
1219                                              HEADER_BRANCH_STACK);
1220
1221         setup_forced_leader(&report, session->evlist);
1222
1223         if (itrace_synth_opts.last_branch)
1224                 has_br_stack = true;
1225
1226         if (has_br_stack && branch_call_mode)
1227                 symbol_conf.show_branchflag_count = true;
1228
1229         memset(&report.brtype_stat, 0, sizeof(struct branch_type_stat));
1230
1231         /*
1232          * Branch mode is a tristate:
1233          * -1 means default, so decide based on the file having branch data.
1234          * 0/1 means the user chose a mode.
1235          */
1236         if (((branch_mode == -1 && has_br_stack) || branch_mode == 1) &&
1237             !branch_call_mode) {
1238                 sort__mode = SORT_MODE__BRANCH;
1239                 symbol_conf.cumulate_callchain = false;
1240         }
1241         if (branch_call_mode) {
1242                 callchain_param.key = CCKEY_ADDRESS;
1243                 callchain_param.branch_callstack = 1;
1244                 symbol_conf.use_callchain = true;
1245                 callchain_register_param(&callchain_param);
1246                 if (sort_order == NULL)
1247                         sort_order = "srcline,symbol,dso";
1248         }
1249
1250         if (report.mem_mode) {
1251                 if (sort__mode == SORT_MODE__BRANCH) {
1252                         pr_err("branch and mem mode incompatible\n");
1253                         goto error;
1254                 }
1255                 sort__mode = SORT_MODE__MEMORY;
1256                 symbol_conf.cumulate_callchain = false;
1257         }
1258
1259         if (symbol_conf.report_hierarchy) {
1260                 /* disable incompatible options */
1261                 symbol_conf.cumulate_callchain = false;
1262
1263                 if (field_order) {
1264                         pr_err("Error: --hierarchy and --fields options cannot be used together\n");
1265                         parse_options_usage(report_usage, options, "F", 1);
1266                         parse_options_usage(NULL, options, "hierarchy", 0);
1267                         goto error;
1268                 }
1269
1270                 perf_hpp_list.need_collapse = true;
1271         }
1272
1273         if (report.use_stdio)
1274                 use_browser = 0;
1275         else if (report.use_tui)
1276                 use_browser = 1;
1277         else if (report.use_gtk)
1278                 use_browser = 2;
1279
1280         /* Force tty output for header output and per-thread stat. */
1281         if (report.header || report.header_only || report.show_threads)
1282                 use_browser = 0;
1283         if (report.header || report.header_only)
1284                 report.tool.show_feat_hdr = SHOW_FEAT_HEADER;
1285         if (report.show_full_info)
1286                 report.tool.show_feat_hdr = SHOW_FEAT_HEADER_FULL_INFO;
1287         if (report.stats_mode || report.tasks_mode)
1288                 use_browser = 0;
1289         if (report.stats_mode && report.tasks_mode) {
1290                 pr_err("Error: --tasks and --mmaps can't be used together with --stats\n");
1291                 goto error;
1292         }
1293
1294         if (strcmp(input_name, "-") != 0)
1295                 setup_browser(true);
1296         else
1297                 use_browser = 0;
1298
1299         if (setup_sorting(session->evlist) < 0) {
1300                 if (sort_order)
1301                         parse_options_usage(report_usage, options, "s", 1);
1302                 if (field_order)
1303                         parse_options_usage(sort_order ? NULL : report_usage,
1304                                             options, "F", 1);
1305                 goto error;
1306         }
1307
1308         if ((report.header || report.header_only) && !quiet) {
1309                 perf_session__fprintf_info(session, stdout,
1310                                            report.show_full_info);
1311                 if (report.header_only) {
1312                         ret = 0;
1313                         goto error;
1314                 }
1315         } else if (use_browser == 0 && !quiet &&
1316                    !report.stats_mode && !report.tasks_mode) {
1317                 fputs("# To display the perf.data header info, please use --header/--header-only options.\n#\n",
1318                       stdout);
1319         }
1320
1321         /*
1322          * Only in the TUI browser we are doing integrated annotation,
1323          * so don't allocate extra space that won't be used in the stdio
1324          * implementation.
1325          */
1326         if (ui__has_annotation()) {
1327                 ret = symbol__annotation_init();
1328                 if (ret < 0)
1329                         goto error;
1330                 /*
1331                  * For searching by name on the "Browse map details".
1332                  * providing it only in verbose mode not to bloat too
1333                  * much struct symbol.
1334                  */
1335                 if (verbose > 0) {
1336                         /*
1337                          * XXX: Need to provide a less kludgy way to ask for
1338                          * more space per symbol, the u32 is for the index on
1339                          * the ui browser.
1340                          * See symbol__browser_index.
1341                          */
1342                         symbol_conf.priv_size += sizeof(u32);
1343                         symbol_conf.sort_by_name = true;
1344                 }
1345                 annotation_config__init();
1346         }
1347
1348         if (symbol__init(&session->header.env) < 0)
1349                 goto error;
1350
1351         report.ptime_range = perf_time__range_alloc(report.time_str,
1352                                                     &report.range_size);
1353         if (!report.ptime_range) {
1354                 ret = -ENOMEM;
1355                 goto error;
1356         }
1357
1358         if (perf_time__parse_str(report.ptime_range, report.time_str) != 0) {
1359                 if (session->evlist->first_sample_time == 0 &&
1360                     session->evlist->last_sample_time == 0) {
1361                         pr_err("HINT: no first/last sample time found in perf data.\n"
1362                                "Please use latest perf binary to execute 'perf record'\n"
1363                                "(if '--buildid-all' is enabled, please set '--timestamp-boundary').\n");
1364                         ret = -EINVAL;
1365                         goto error;
1366                 }
1367
1368                 report.range_num = perf_time__percent_parse_str(
1369                                         report.ptime_range, report.range_size,
1370                                         report.time_str,
1371                                         session->evlist->first_sample_time,
1372                                         session->evlist->last_sample_time);
1373
1374                 if (report.range_num < 0) {
1375                         pr_err("Invalid time string\n");
1376                         ret = -EINVAL;
1377                         goto error;
1378                 }
1379         } else {
1380                 report.range_num = 1;
1381         }
1382
1383         if (session->tevent.pevent &&
1384             pevent_set_function_resolver(session->tevent.pevent,
1385                                          machine__resolve_kernel_addr,
1386                                          &session->machines.host) < 0) {
1387                 pr_err("%s: failed to set libtraceevent function resolver\n",
1388                        __func__);
1389                 return -1;
1390         }
1391
1392         sort__setup_elide(stdout);
1393
1394         ret = __cmd_report(&report);
1395         if (ret == K_SWITCH_INPUT_DATA) {
1396                 perf_session__delete(session);
1397                 goto repeat;
1398         } else
1399                 ret = 0;
1400
1401 error:
1402         zfree(&report.ptime_range);
1403
1404         perf_session__delete(session);
1405         return ret;
1406 }