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/map.h"
  20 #include "util/symbol.h"
  21 #include "util/callchain.h"
  22 #include "util/values.h"
  23
  24 #include "perf.h"
  25 #include "util/debug.h"
  26 #include "util/evlist.h"
  27 #include "util/evsel.h"
  28 #include "util/header.h"
  29 #include "util/session.h"
  30 #include "util/tool.h"
  31
  32 #include <subcmd/parse-options.h>
  33 #include <subcmd/exec-cmd.h>
  34 #include "util/parse-events.h"
  35
  36 #include "util/thread.h"
  37 #include "util/sort.h"
  38 #include "util/hist.h"
  39 #include "util/data.h"
  40 #include "arch/common.h"
  41 #include "util/time-utils.h"
  42 #include "util/auxtrace.h"
  43 #include "util/units.h"
  44 #include "util/branch.h"
  45
  46 #include <dlfcn.h>
  47 #include <errno.h>
  48 #include <inttypes.h>
  49 #include <regex.h>
  50 #include <signal.h>
  51 #include <linux/bitmap.h>
  52 #include <linux/stringify.h>
  53 #include <sys/types.h>
  54 #include <sys/stat.h>
  55 #include <unistd.h>
  56 #include <linux/mman.h>
  57
  58 struct report {
  59         struct perf_tool        tool;
  60         struct perf_session     *session;
  61         bool                    use_tui, use_gtk, use_stdio;
  62         bool                    show_full_info;
  63         bool                    show_threads;
  64         bool                    inverted_callchain;
  65         bool                    mem_mode;
  66         bool                    stats_mode;
  67         bool                    tasks_mode;
  68         bool                    mmaps_mode;
  69         bool                    header;
  70         bool                    header_only;
  71         bool                    nonany_branch_mode;
  72         bool                    group_set;
  73         int                     max_stack;
  74         struct perf_read_values show_threads_values;
  75         struct annotation_options annotation_opts;
  76         const char              *pretty_printing_style;
  77         const char              *cpu_list;
  78         const char              *symbol_filter_str;
  79         const char              *time_str;
  80         struct perf_time_interval *ptime_range;
  81         int                     range_size;
  82         int                     range_num;
  83         float                   min_percent;
  84         u64                     nr_entries;
  85         u64                     queue_size;
  86         int                     socket_filter;
  87         DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
  88         struct branch_type_stat brtype_stat;
  89         bool                    symbol_ipc;
  90 };
  91
  92 static int report__config(const char *var, const char *value, void *cb)
  93 {
  94         struct report *rep = cb;
  95
  96         if (!strcmp(var, "report.group")) {
  97                 symbol_conf.event_group = perf_config_bool(var, value);
  98                 return 0;
  99         }
 100         if (!strcmp(var, "report.percent-limit")) {
 101                 double pcnt = strtof(value, NULL);
 102
 103                 rep->min_percent = pcnt;
 104                 callchain_param.min_percent = pcnt;
 105                 return 0;
 106         }
 107         if (!strcmp(var, "report.children")) {
 108                 symbol_conf.cumulate_callchain = perf_config_bool(var, value);
 109                 return 0;
 110         }
 111         if (!strcmp(var, "report.queue-size"))
 112                 return perf_config_u64(&rep->queue_size, var, value);
 113
 114         if (!strcmp(var, "report.sort_order")) {
 115                 default_sort_order = strdup(value);
 116                 return 0;
 117         }
 118
 119         return 0;
 120 }
 121
 122 static int hist_iter__report_callback(struct hist_entry_iter *iter,
 123                                       struct addr_location *al, bool single,
 124                                       void *arg)
 125 {
 126         int err = 0;
 127         struct report *rep = arg;
 128         struct hist_entry *he = iter->he;
 129         struct perf_evsel *evsel = iter->evsel;
 130         struct perf_sample *sample = iter->sample;
 131         struct mem_info *mi;
 132         struct branch_info *bi;
 133
 134         if (!ui__has_annotation() && !rep->symbol_ipc)
 135                 return 0;
 136
 137         hist__account_cycles(sample->branch_stack, al, sample,
 138                              rep->nonany_branch_mode);
 139
 140         if (sort__mode == SORT_MODE__BRANCH) {
 141                 bi = he->branch_info;
 142                 err = addr_map_symbol__inc_samples(&bi->from, sample, evsel);
 143                 if (err)
 144                         goto out;
 145
 146                 err = addr_map_symbol__inc_samples(&bi->to, sample, evsel);
 147
 148         } else if (rep->mem_mode) {
 149                 mi = he->mem_info;
 150                 err = addr_map_symbol__inc_samples(&mi->daddr, sample, evsel);
 151                 if (err)
 152                         goto out;
 153
 154                 err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr);
 155
 156         } else if (symbol_conf.cumulate_callchain) {
 157                 if (single)
 158                         err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr);
 159         } else {
 160                 err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr);
 161         }
 162
 163 out:
 164         return err;
 165 }
 166
 167 static int hist_iter__branch_callback(struct hist_entry_iter *iter,
 168                                       struct addr_location *al __maybe_unused,
 169                                       bool single __maybe_unused,
 170                                       void *arg)
 171 {
 172         struct hist_entry *he = iter->he;
 173         struct report *rep = arg;
 174         struct branch_info *bi;
 175         struct perf_sample *sample = iter->sample;
 176         struct perf_evsel *evsel = iter->evsel;
 177         int err;
 178
 179         if (!ui__has_annotation() && !rep->symbol_ipc)
 180                 return 0;
 181
 182         hist__account_cycles(sample->branch_stack, al, sample,
 183                              rep->nonany_branch_mode);
 184
 185         bi = he->branch_info;
 186         err = addr_map_symbol__inc_samples(&bi->from, sample, evsel);
 187         if (err)
 188                 goto out;
 189
 190         err = addr_map_symbol__inc_samples(&bi->to, sample, evsel);
 191
 192         branch_type_count(&rep->brtype_stat, &bi->flags,
 193                           bi->from.addr, bi->to.addr);
 194
 195 out:
 196         return err;
 197 }
 198
 199 static void setup_forced_leader(struct report *report,
 200                                 struct perf_evlist *evlist)
 201 {
 202         if (report->group_set)
 203                 perf_evlist__force_leader(evlist);
 204 }
 205
 206 static int process_feature_event(struct perf_session *session,
 207                                  union perf_event *event)
 208 {
 209         struct report *rep = container_of(session->tool, struct report, tool);
 210
 211         if (event->feat.feat_id < HEADER_LAST_FEATURE)
 212                 return perf_event__process_feature(session, event);
 213
 214         if (event->feat.feat_id != HEADER_LAST_FEATURE) {
 215                 pr_err("failed: wrong feature ID: %" PRIu64 "\n",
 216                        event->feat.feat_id);
 217                 return -1;
 218         }
 219
 220         /*
 221          * (feat_id = HEADER_LAST_FEATURE) is the end marker which
 222          * means all features are received, now we can force the
 223          * group if needed.
 224          */
 225         setup_forced_leader(rep, session->evlist);
 226         return 0;
 227 }
 228
 229 static int process_sample_event(struct perf_tool *tool,
 230                                 union perf_event *event,
 231                                 struct perf_sample *sample,
 232                                 struct perf_evsel *evsel,
 233                                 struct machine *machine)
 234 {
 235         struct report *rep = container_of(tool, struct report, tool);
 236         struct addr_location al;
 237         struct hist_entry_iter iter = {
 238                 .evsel                  = evsel,
 239                 .sample                 = sample,
 240                 .hide_unresolved        = symbol_conf.hide_unresolved,
 241                 .add_entry_cb           = hist_iter__report_callback,
 242         };
 243         int ret = 0;
 244
 245         if (perf_time__ranges_skip_sample(rep->ptime_range, rep->range_num,
 246                                           sample->time)) {
 247                 return 0;
 248         }
 249
 250         if (machine__resolve(machine, &al, sample) < 0) {
 251                 pr_debug("problem processing %d event, skipping it.\n",
 252                          event->header.type);
 253                 return -1;
 254         }
 255
 256         if (symbol_conf.hide_unresolved && al.sym == NULL)
 257                 goto out_put;
 258
 259         if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap))
 260                 goto out_put;
 261
 262         if (sort__mode == SORT_MODE__BRANCH) {
 263                 /*
 264                  * A non-synthesized event might not have a branch stack if
 265                  * branch stacks have been synthesized (using itrace options).
 266                  */
 267                 if (!sample->branch_stack)
 268                         goto out_put;
 269
 270                 iter.add_entry_cb = hist_iter__branch_callback;
 271                 iter.ops = &hist_iter_branch;
 272         } else if (rep->mem_mode) {
 273                 iter.ops = &hist_iter_mem;
 274         } else if (symbol_conf.cumulate_callchain) {
 275                 iter.ops = &hist_iter_cumulative;
 276         } else {
 277                 iter.ops = &hist_iter_normal;
 278         }
 279
 280         if (al.map != NULL)
 281                 al.map->dso->hit = 1;
 282
 283         ret = hist_entry_iter__add(&iter, &al, rep->max_stack, rep);
 284         if (ret < 0)
 285                 pr_debug("problem adding hist entry, skipping event\n");
 286 out_put:
 287         addr_location__put(&al);
 288         return ret;
 289 }
 290
 291 static int process_read_event(struct perf_tool *tool,
 292                               union perf_event *event,
 293                               struct perf_sample *sample __maybe_unused,
 294                               struct perf_evsel *evsel,
 295                               struct machine *machine __maybe_unused)
 296 {
 297         struct report *rep = container_of(tool, struct report, tool);
 298
 299         if (rep->show_threads) {
 300                 const char *name = evsel ? perf_evsel__name(evsel) : "unknown";
 301                 int err = perf_read_values_add_value(&rep->show_threads_values,
 302                                            event->read.pid, event->read.tid,
 303                                            evsel->idx,
 304                                            name,
 305                                            event->read.value);
 306
 307                 if (err)
 308                         return err;
 309         }
 310
 311         return 0;
 312 }
 313
 314 /* For pipe mode, sample_type is not currently set */
 315 static int report__setup_sample_type(struct report *rep)
 316 {
 317         struct perf_session *session = rep->session;
 318         u64 sample_type = perf_evlist__combined_sample_type(session->evlist);
 319         bool is_pipe = perf_data__is_pipe(session->data);
 320
 321         if (session->itrace_synth_opts->callchain ||
 322             (!is_pipe &&
 323              perf_header__has_feat(&session->header, HEADER_AUXTRACE) &&
 324              !session->itrace_synth_opts->set))
 325                 sample_type |= PERF_SAMPLE_CALLCHAIN;
 326
 327         if (session->itrace_synth_opts->last_branch)
 328                 sample_type |= PERF_SAMPLE_BRANCH_STACK;
 329
 330         if (!is_pipe && !(sample_type & PERF_SAMPLE_CALLCHAIN)) {
 331                 if (perf_hpp_list.parent) {
 332                         ui__error("Selected --sort parent, but no "
 333                                     "callchain data. Did you call "
 334                                     "'perf record' without -g?\n");
 335                         return -EINVAL;
 336                 }
 337                 if (symbol_conf.use_callchain &&
 338                         !symbol_conf.show_branchflag_count) {
 339                         ui__error("Selected -g or --branch-history.\n"
 340                                   "But no callchain or branch data.\n"
 341                                   "Did you call 'perf record' without -g or -b?\n");
 342                         return -1;
 343                 }
 344         } else if (!callchain_param.enabled &&
 345                    callchain_param.mode != CHAIN_NONE &&
 346                    !symbol_conf.use_callchain) {
 347                         symbol_conf.use_callchain = true;
 348                         if (callchain_register_param(&callchain_param) < 0) {
 349                                 ui__error("Can't register callchain params.\n");
 350                                 return -EINVAL;
 351                         }
 352         }
 353
 354         if (symbol_conf.cumulate_callchain) {
 355                 /* Silently ignore if callchain is missing */
 356                 if (!(sample_type & PERF_SAMPLE_CALLCHAIN)) {
 357                         symbol_conf.cumulate_callchain = false;
 358                         perf_hpp__cancel_cumulate();
 359                 }
 360         }
 361
 362         if (sort__mode == SORT_MODE__BRANCH) {
 363                 if (!is_pipe &&
 364                     !(sample_type & PERF_SAMPLE_BRANCH_STACK)) {
 365                         ui__error("Selected -b but no branch data. "
 366                                   "Did you call perf record without -b?\n");
 367                         return -1;
 368                 }
 369         }
 370
 371         if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain) {
 372                 if ((sample_type & PERF_SAMPLE_REGS_USER) &&
 373                     (sample_type & PERF_SAMPLE_STACK_USER)) {
 374                         callchain_param.record_mode = CALLCHAIN_DWARF;
 375                         dwarf_callchain_users = true;
 376                 } else if (sample_type & PERF_SAMPLE_BRANCH_STACK)
 377                         callchain_param.record_mode = CALLCHAIN_LBR;
 378                 else
 379                         callchain_param.record_mode = CALLCHAIN_FP;
 380         }
 381
 382         /* ??? handle more cases than just ANY? */
 383         if (!(perf_evlist__combined_branch_type(session->evlist) &
 384                                 PERF_SAMPLE_BRANCH_ANY))
 385                 rep->nonany_branch_mode = true;
 386
 387         return 0;
 388 }
 389
 390 static void sig_handler(int sig __maybe_unused)
 391 {
 392         session_done = 1;
 393 }
 394
 395 static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report *rep,
 396                                               const char *evname, FILE *fp)
 397 {
 398         size_t ret;
 399         char unit;
 400         unsigned long nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE];
 401         u64 nr_events = hists->stats.total_period;
 402         struct perf_evsel *evsel = hists_to_evsel(hists);
 403         char buf[512];
 404         size_t size = sizeof(buf);
 405         int socked_id = hists->socket_filter;
 406
 407         if (quiet)
 408                 return 0;
 409
 410         if (symbol_conf.filter_relative) {
 411                 nr_samples = hists->stats.nr_non_filtered_samples;
 412                 nr_events = hists->stats.total_non_filtered_period;
 413         }
 414
 415         if (perf_evsel__is_group_event(evsel)) {
 416                 struct perf_evsel *pos;
 417
 418                 perf_evsel__group_desc(evsel, buf, size);
 419                 evname = buf;
 420
 421                 for_each_group_member(pos, evsel) {
 422                         const struct hists *pos_hists = evsel__hists(pos);
 423
 424                         if (symbol_conf.filter_relative) {
 425                                 nr_samples += pos_hists->stats.nr_non_filtered_samples;
 426                                 nr_events += pos_hists->stats.total_non_filtered_period;
 427                         } else {
 428                                 nr_samples += pos_hists->stats.nr_events[PERF_RECORD_SAMPLE];
 429                                 nr_events += pos_hists->stats.total_period;
 430                         }
 431                 }
 432         }
 433
 434         nr_samples = convert_unit(nr_samples, &unit);
 435         ret = fprintf(fp, "# Samples: %lu%c", nr_samples, unit);
 436         if (evname != NULL) {
 437                 ret += fprintf(fp, " of event%s '%s'",
 438                                evsel->nr_members > 1 ? "s" : "", evname);
 439         }
 440
 441         if (rep->time_str)
 442                 ret += fprintf(fp, " (time slices: %s)", rep->time_str);
 443
 444         if (symbol_conf.show_ref_callgraph &&
 445             strstr(evname, "call-graph=no")) {
 446                 ret += fprintf(fp, ", show reference callgraph");
 447         }
 448
 449         if (rep->mem_mode) {
 450                 ret += fprintf(fp, "\n# Total weight : %" PRIu64, nr_events);
 451                 ret += fprintf(fp, "\n# Sort order   : %s", sort_order ? : default_mem_sort_order);
 452         } else
 453                 ret += fprintf(fp, "\n# Event count (approx.): %" PRIu64, nr_events);
 454
 455         if (socked_id > -1)
 456                 ret += fprintf(fp, "\n# Processor Socket: %d", socked_id);
 457
 458         return ret + fprintf(fp, "\n#\n");
 459 }
 460
 461 static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist,
 462                                          struct report *rep,
 463                                          const char *help)
 464 {
 465         struct perf_evsel *pos;
 466
 467         if (!quiet) {
 468                 fprintf(stdout, "#\n# Total Lost Samples: %" PRIu64 "\n#\n",
 469                         evlist->stats.total_lost_samples);
 470         }
 471
 472         evlist__for_each_entry(evlist, pos) {
 473                 struct hists *hists = evsel__hists(pos);
 474                 const char *evname = perf_evsel__name(pos);
 475
 476                 if (symbol_conf.event_group &&
 477                     !perf_evsel__is_group_leader(pos))
 478                         continue;
 479
 480                 hists__fprintf_nr_sample_events(hists, rep, evname, stdout);
 481                 hists__fprintf(hists, !quiet, 0, 0, rep->min_percent, stdout,
 482                                !(symbol_conf.use_callchain ||
 483                                  symbol_conf.show_branchflag_count));
 484                 fprintf(stdout, "\n\n");
 485         }
 486
 487         if (!quiet)
 488                 fprintf(stdout, "#\n# (%s)\n#\n", help);
 489
 490         if (rep->show_threads) {
 491                 bool style = !strcmp(rep->pretty_printing_style, "raw");
 492                 perf_read_values_display(stdout, &rep->show_threads_values,
 493                                          style);
 494                 perf_read_values_destroy(&rep->show_threads_values);
 495         }
 496
 497         if (sort__mode == SORT_MODE__BRANCH)
 498                 branch_type_stat_display(stdout, &rep->brtype_stat);
 499
 500         return 0;
 501 }
 502
 503 static void report__warn_kptr_restrict(const struct report *rep)
 504 {
 505         struct map *kernel_map = machine__kernel_map(&rep->session->machines.host);
 506         struct kmap *kernel_kmap = kernel_map ? map__kmap(kernel_map) : NULL;
 507
 508         if (perf_evlist__exclude_kernel(rep->session->evlist))
 509                 return;
 510
 511         if (kernel_map == NULL ||
 512             (kernel_map->dso->hit &&
 513              (kernel_kmap->ref_reloc_sym == NULL ||
 514               kernel_kmap->ref_reloc_sym->addr == 0))) {
 515                 const char *desc =
 516                     "As no suitable kallsyms nor vmlinux was found, kernel samples\n"
 517                     "can't be resolved.";
 518
 519                 if (kernel_map && map__has_symbols(kernel_map)) {
 520                         desc = "If some relocation was applied (e.g. "
 521                                "kexec) symbols may be misresolved.";
 522                 }
 523
 524                 ui__warning(
 525 "Kernel address maps (/proc/{kallsyms,modules}) were restricted.\n\n"
 526 "Check /proc/sys/kernel/kptr_restrict before running 'perf record'.\n\n%s\n\n"
 527 "Samples in kernel modules can't be resolved as well.\n\n",
 528                 desc);
 529         }
 530 }
 531
 532 static int report__gtk_browse_hists(struct report *rep, const char *help)
 533 {
 534         int (*hist_browser)(struct perf_evlist *evlist, const char *help,
 535                             struct hist_browser_timer *timer, float min_pcnt);
 536
 537         hist_browser = dlsym(perf_gtk_handle, "perf_evlist__gtk_browse_hists");
 538
 539         if (hist_browser == NULL) {
 540                 ui__error("GTK browser not found!\n");
 541                 return -1;
 542         }
 543
 544         return hist_browser(rep->session->evlist, help, NULL, rep->min_percent);
 545 }
 546
 547 static int report__browse_hists(struct report *rep)
 548 {
 549         int ret;
 550         struct perf_session *session = rep->session;
 551         struct perf_evlist *evlist = session->evlist;
 552         const char *help = perf_tip(system_path(TIPDIR));
 553
 554         if (help == NULL) {
 555                 /* fallback for people who don't install perf ;-) */
 556                 help = perf_tip(DOCDIR);
 557                 if (help == NULL)
 558                         help = "Cannot load tips.txt file, please install perf!";
 559         }
 560
 561         switch (use_browser) {
 562         case 1:
 563                 ret = perf_evlist__tui_browse_hists(evlist, help, NULL,
 564                                                     rep->min_percent,
 565                                                     &session->header.env,
 566                                                     true, &rep->annotation_opts);
 567                 /*
 568                  * Usually "ret" is the last pressed key, and we only
 569                  * care if the key notifies us to switch data file.
 570                  */
 571                 if (ret != K_SWITCH_INPUT_DATA)
 572                         ret = 0;
 573                 break;
 574         case 2:
 575                 ret = report__gtk_browse_hists(rep, help);
 576                 break;
 577         default:
 578                 ret = perf_evlist__tty_browse_hists(evlist, rep, help);
 579                 break;
 580         }
 581
 582         return ret;
 583 }
 584
 585 static int report__collapse_hists(struct report *rep)
 586 {
 587         struct ui_progress prog;
 588         struct perf_evsel *pos;
 589         int ret = 0;
 590
 591         ui_progress__init(&prog, rep->nr_entries, "Merging related events...");
 592
 593         evlist__for_each_entry(rep->session->evlist, pos) {
 594                 struct hists *hists = evsel__hists(pos);
 595
 596                 if (pos->idx == 0)
 597                         hists->symbol_filter_str = rep->symbol_filter_str;
 598
 599                 hists->socket_filter = rep->socket_filter;
 600
 601                 ret = hists__collapse_resort(hists, &prog);
 602                 if (ret < 0)
 603                         break;
 604
 605                 /* Non-group events are considered as leader */
 606                 if (symbol_conf.event_group &&
 607                     !perf_evsel__is_group_leader(pos)) {
 608                         struct hists *leader_hists = evsel__hists(pos->leader);
 609
 610                         hists__match(leader_hists, hists);
 611                         hists__link(leader_hists, hists);
 612                 }
 613         }
 614
 615         ui_progress__finish();
 616         return ret;
 617 }
 618
 619 static int hists__resort_cb(struct hist_entry *he, void *arg)
 620 {
 621         struct report *rep = arg;
 622         struct symbol *sym = he->ms.sym;
 623
 624         if (rep->symbol_ipc && sym && !sym->annotate2) {
 625                 struct perf_evsel *evsel = hists_to_evsel(he->hists);
 626
 627                 symbol__annotate2(sym, he->ms.map, evsel,
 628                                   &annotation__default_options, NULL);
 629         }
 630
 631         return 0;
 632 }
 633
 634 static void report__output_resort(struct report *rep)
 635 {
 636         struct ui_progress prog;
 637         struct perf_evsel *pos;
 638
 639         ui_progress__init(&prog, rep->nr_entries, "Sorting events for output...");
 640
 641         evlist__for_each_entry(rep->session->evlist, pos) {
 642                 perf_evsel__output_resort_cb(pos, &prog,
 643                                              hists__resort_cb, rep);
 644         }
 645
 646         ui_progress__finish();
 647 }
 648
 649 static void stats_setup(struct report *rep)
 650 {
 651         memset(&rep->tool, 0, sizeof(rep->tool));
 652         rep->tool.no_warn = true;
 653 }
 654
 655 static int stats_print(struct report *rep)
 656 {
 657         struct perf_session *session = rep->session;
 658
 659         perf_session__fprintf_nr_events(session, stdout);
 660         return 0;
 661 }
 662
 663 static void tasks_setup(struct report *rep)
 664 {
 665         memset(&rep->tool, 0, sizeof(rep->tool));
 666         rep->tool.ordered_events = true;
 667         if (rep->mmaps_mode) {
 668                 rep->tool.mmap = perf_event__process_mmap;
 669                 rep->tool.mmap2 = perf_event__process_mmap2;
 670         }
 671         rep->tool.comm = perf_event__process_comm;
 672         rep->tool.exit = perf_event__process_exit;
 673         rep->tool.fork = perf_event__process_fork;
 674         rep->tool.no_warn = true;
 675 }
 676
 677 struct task {
 678         struct thread           *thread;
 679         struct list_head         list;
 680         struct list_head         children;
 681 };
 682
 683 static struct task *tasks_list(struct task *task, struct machine *machine)
 684 {
 685         struct thread *parent_thread, *thread = task->thread;
 686         struct task   *parent_task;
 687
 688         /* Already listed. */
 689         if (!list_empty(&task->list))
 690                 return NULL;
 691
 692         /* Last one in the chain. */
 693         if (thread->ppid == -1)
 694                 return task;
 695
 696         parent_thread = machine__find_thread(machine, -1, thread->ppid);
 697         if (!parent_thread)
 698                 return ERR_PTR(-ENOENT);
 699
 700         parent_task = thread__priv(parent_thread);
 701         list_add_tail(&task->list, &parent_task->children);
 702         return tasks_list(parent_task, machine);
 703 }
 704
 705 static size_t maps__fprintf_task(struct maps *maps, int indent, FILE *fp)
 706 {
 707         size_t printed = 0;
 708         struct rb_node *nd;
 709
 710         for (nd = rb_first(&maps->entries); nd; nd = rb_next(nd)) {
 711                 struct map *map = rb_entry(nd, struct map, rb_node);
 712
 713                 printed += fprintf(fp, "%*s  %" PRIx64 "-%" PRIx64 " %c%c%c%c %08" PRIx64 " %" PRIu64 " %s\n",
 714                                    indent, "", map->start, map->end,
 715                                    map->prot & PROT_READ ? 'r' : '-',
 716                                    map->prot & PROT_WRITE ? 'w' : '-',
 717                                    map->prot & PROT_EXEC ? 'x' : '-',
 718                                    map->flags & MAP_SHARED ? 's' : 'p',
 719                                    map->pgoff,
 720                                    map->ino, map->dso->name);
 721         }
 722
 723         return printed;
 724 }
 725
 726 static int map_groups__fprintf_task(struct map_groups *mg, int indent, FILE *fp)
 727 {
 728         return maps__fprintf_task(&mg->maps, indent, fp);
 729 }
 730
 731 static void task__print_level(struct task *task, FILE *fp, int level)
 732 {
 733         struct thread *thread = task->thread;
 734         struct task *child;
 735         int comm_indent = fprintf(fp, "  %8d %8d %8d |%*s",
 736                                   thread->pid_, thread->tid, thread->ppid,
 737                                   level, "");
 738
 739         fprintf(fp, "%s\n", thread__comm_str(thread));
 740
 741         map_groups__fprintf_task(thread->mg, comm_indent, fp);
 742
 743         if (!list_empty(&task->children)) {
 744                 list_for_each_entry(child, &task->children, list)
 745                         task__print_level(child, fp, level + 1);
 746         }
 747 }
 748
 749 static int tasks_print(struct report *rep, FILE *fp)
 750 {
 751         struct perf_session *session = rep->session;
 752         struct machine      *machine = &session->machines.host;
 753         struct task *tasks, *task;
 754         unsigned int nr = 0, itask = 0, i;
 755         struct rb_node *nd;
 756         LIST_HEAD(list);
 757
 758         /*
 759          * No locking needed while accessing machine->threads,
 760          * because --tasks is single threaded command.
 761          */
 762
 763         /* Count all the threads. */
 764         for (i = 0; i < THREADS__TABLE_SIZE; i++)
 765                 nr += machine->threads[i].nr;
 766
 767         tasks = malloc(sizeof(*tasks) * nr);
 768         if (!tasks)
 769                 return -ENOMEM;
 770
 771         for (i = 0; i < THREADS__TABLE_SIZE; i++) {
 772                 struct threads *threads = &machine->threads[i];
 773
 774                 for (nd = rb_first_cached(&threads->entries); nd;
 775                      nd = rb_next(nd)) {
 776                         task = tasks + itask++;
 777
 778                         task->thread = rb_entry(nd, struct thread, rb_node);
 779                         INIT_LIST_HEAD(&task->children);
 780                         INIT_LIST_HEAD(&task->list);
 781                         thread__set_priv(task->thread, task);
 782                 }
 783         }
 784
 785         /*
 786          * Iterate every task down to the unprocessed parent
 787          * and link all in task children list. Task with no
 788          * parent is added into 'list'.
 789          */
 790         for (itask = 0; itask < nr; itask++) {
 791                 task = tasks + itask;
 792
 793                 if (!list_empty(&task->list))
 794                         continue;
 795
 796                 task = tasks_list(task, machine);
 797                 if (IS_ERR(task)) {
 798                         pr_err("Error: failed to process tasks\n");
 799                         free(tasks);
 800                         return PTR_ERR(task);
 801                 }
 802
 803                 if (task)
 804                         list_add_tail(&task->list, &list);
 805         }
 806
 807         fprintf(fp, "# %8s %8s %8s  %s\n", "pid", "tid", "ppid", "comm");
 808
 809         list_for_each_entry(task, &list, list)
 810                 task__print_level(task, fp, 0);
 811
 812         free(tasks);
 813         return 0;
 814 }
 815
 816 static int __cmd_report(struct report *rep)
 817 {
 818         int ret;
 819         struct perf_session *session = rep->session;
 820         struct perf_evsel *pos;
 821         struct perf_data *data = session->data;
 822
 823         signal(SIGINT, sig_handler);
 824
 825         if (rep->cpu_list) {
 826                 ret = perf_session__cpu_bitmap(session, rep->cpu_list,
 827                                                rep->cpu_bitmap);
 828                 if (ret) {
 829                         ui__error("failed to set cpu bitmap\n");
 830                         return ret;
 831                 }
 832                 session->itrace_synth_opts->cpu_bitmap = rep->cpu_bitmap;
 833         }
 834
 835         if (rep->show_threads) {
 836                 ret = perf_read_values_init(&rep->show_threads_values);
 837                 if (ret)
 838                         return ret;
 839         }
 840
 841         ret = report__setup_sample_type(rep);
 842         if (ret) {
 843                 /* report__setup_sample_type() already showed error message */
 844                 return ret;
 845         }
 846
 847         if (rep->stats_mode)
 848                 stats_setup(rep);
 849
 850         if (rep->tasks_mode)
 851                 tasks_setup(rep);
 852
 853         ret = perf_session__process_events(session);
 854         if (ret) {
 855                 ui__error("failed to process sample\n");
 856                 return ret;
 857         }
 858
 859         if (rep->stats_mode)
 860                 return stats_print(rep);
 861
 862         if (rep->tasks_mode)
 863                 return tasks_print(rep, stdout);
 864
 865         report__warn_kptr_restrict(rep);
 866
 867         evlist__for_each_entry(session->evlist, pos)
 868                 rep->nr_entries += evsel__hists(pos)->nr_entries;
 869
 870         if (use_browser == 0) {
 871                 if (verbose > 3)
 872                         perf_session__fprintf(session, stdout);
 873
 874                 if (verbose > 2)
 875                         perf_session__fprintf_dsos(session, stdout);
 876
 877                 if (dump_trace) {
 878                         perf_session__fprintf_nr_events(session, stdout);
 879                         perf_evlist__fprintf_nr_events(session->evlist, stdout);
 880                         return 0;
 881                 }
 882         }
 883
 884         ret = report__collapse_hists(rep);
 885         if (ret) {
 886                 ui__error("failed to process hist entry\n");
 887                 return ret;
 888         }
 889
 890         if (session_done())
 891                 return 0;
 892
 893         /*
 894          * recalculate number of entries after collapsing since it
 895          * might be changed during the collapse phase.
 896          */
 897         rep->nr_entries = 0;
 898         evlist__for_each_entry(session->evlist, pos)
 899                 rep->nr_entries += evsel__hists(pos)->nr_entries;
 900
 901         if (rep->nr_entries == 0) {
 902                 ui__error("The %s data has no samples!\n", data->path);
 903                 return 0;
 904         }
 905
 906         report__output_resort(rep);
 907
 908         return report__browse_hists(rep);
 909 }
 910
 911 static int
 912 report_parse_callchain_opt(const struct option *opt, const char *arg, int unset)
 913 {
 914         struct callchain_param *callchain = opt->value;
 915
 916         callchain->enabled = !unset;
 917         /*
 918          * --no-call-graph
 919          */
 920         if (unset) {
 921                 symbol_conf.use_callchain = false;
 922                 callchain->mode = CHAIN_NONE;
 923                 return 0;
 924         }
 925
 926         return parse_callchain_report_opt(arg);
 927 }
 928
 929 int
 930 report_parse_ignore_callees_opt(const struct option *opt __maybe_unused,
 931                                 const char *arg, int unset __maybe_unused)
 932 {
 933         if (arg) {
 934                 int err = regcomp(&ignore_callees_regex, arg, REG_EXTENDED);
 935                 if (err) {
 936                         char buf[BUFSIZ];
 937                         regerror(err, &ignore_callees_regex, buf, sizeof(buf));
 938                         pr_err("Invalid --ignore-callees regex: %s\n%s", arg, buf);
 939                         return -1;
 940                 }
 941                 have_ignore_callees = 1;
 942         }
 943
 944         return 0;
 945 }
 946
 947 static int
 948 parse_branch_mode(const struct option *opt,
 949                   const char *str __maybe_unused, int unset)
 950 {
 951         int *branch_mode = opt->value;
 952
 953         *branch_mode = !unset;
 954         return 0;
 955 }
 956
 957 static int
 958 parse_percent_limit(const struct option *opt, const char *str,
 959                     int unset __maybe_unused)
 960 {
 961         struct report *rep = opt->value;
 962         double pcnt = strtof(str, NULL);
 963
 964         rep->min_percent = pcnt;
 965         callchain_param.min_percent = pcnt;
 966         return 0;
 967 }
 968
 969 int cmd_report(int argc, const char **argv)
 970 {
 971         struct perf_session *session;
 972         struct itrace_synth_opts itrace_synth_opts = { .set = 0, };
 973         struct stat st;
 974         bool has_br_stack = false;
 975         int branch_mode = -1;
 976         bool branch_call_mode = false;
 977 #define CALLCHAIN_DEFAULT_OPT  "graph,0.5,caller,function,percent"
 978         static const char report_callchain_help[] = "Display call graph (stack chain/backtrace):\n\n"
 979                                                     CALLCHAIN_REPORT_HELP
 980                                                     "\n\t\t\t\tDefault: " CALLCHAIN_DEFAULT_OPT;
 981         char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT;
 982         const char * const report_usage[] = {
 983                 "perf report [<options>]",
 984                 NULL
 985         };
 986         struct report report = {
 987                 .tool = {
 988                         .sample          = process_sample_event,
 989                         .mmap            = perf_event__process_mmap,
 990                         .mmap2           = perf_event__process_mmap2,
 991                         .comm            = perf_event__process_comm,
 992                         .namespaces      = perf_event__process_namespaces,
 993                         .exit            = perf_event__process_exit,
 994                         .fork            = perf_event__process_fork,
 995                         .lost            = perf_event__process_lost,
 996                         .read            = process_read_event,
 997                         .attr            = perf_event__process_attr,
 998                         .tracing_data    = perf_event__process_tracing_data,
 999                         .build_id        = perf_event__process_build_id,
1000                         .id_index        = perf_event__process_id_index,
1001                         .auxtrace_info   = perf_event__process_auxtrace_info,
1002                         .auxtrace        = perf_event__process_auxtrace,
1003                         .event_update    = perf_event__process_event_update,
1004                         .feature         = process_feature_event,
1005                         .ordered_events  = true,
1006                         .ordering_requires_timestamps = true,
1007                 },
1008                 .max_stack               = PERF_MAX_STACK_DEPTH,
1009                 .pretty_printing_style   = "normal",
1010                 .socket_filter           = -1,
1011                 .annotation_opts         = annotation__default_options,
1012         };
1013         const struct option options[] = {
1014         OPT_STRING('i', "input", &input_name, "file",
1015                     "input file name"),
1016         OPT_INCR('v', "verbose", &verbose,
1017                     "be more verbose (show symbol address, etc)"),
1018         OPT_BOOLEAN('q', "quiet", &quiet, "Do not show any message"),
1019         OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
1020                     "dump raw trace in ASCII"),
1021         OPT_BOOLEAN(0, "stats", &report.stats_mode, "Display event stats"),
1022         OPT_BOOLEAN(0, "tasks", &report.tasks_mode, "Display recorded tasks"),
1023         OPT_BOOLEAN(0, "mmaps", &report.mmaps_mode, "Display recorded tasks memory maps"),
1024         OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
1025                    "file", "vmlinux pathname"),
1026         OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux,
1027                     "don't load vmlinux even if found"),
1028         OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
1029                    "file", "kallsyms pathname"),
1030         OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"),
1031         OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
1032                     "load module symbols - WARNING: use only with -k and LIVE kernel"),
1033         OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
1034                     "Show a column with the number of samples"),
1035         OPT_BOOLEAN('T', "threads", &report.show_threads,
1036                     "Show per-thread event counters"),
1037         OPT_STRING(0, "pretty", &report.pretty_printing_style, "key",
1038                    "pretty printing style key: normal raw"),
1039         OPT_BOOLEAN(0, "tui", &report.use_tui, "Use the TUI interface"),
1040         OPT_BOOLEAN(0, "gtk", &report.use_gtk, "Use the GTK2 interface"),
1041         OPT_BOOLEAN(0, "stdio", &report.use_stdio,
1042                     "Use the stdio interface"),
1043         OPT_BOOLEAN(0, "header", &report.header, "Show data header."),
1044         OPT_BOOLEAN(0, "header-only", &report.header_only,
1045                     "Show only data header."),
1046         OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
1047                    "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..."
1048                    " Please refer the man page for the complete list."),
1049         OPT_STRING('F', "fields", &field_order, "key[,keys...]",
1050                    "output field(s): overhead, period, sample plus all of sort keys"),
1051         OPT_BOOLEAN(0, "show-cpu-utilization", &symbol_conf.show_cpu_utilization,
1052                     "Show sample percentage for different cpu modes"),
1053         OPT_BOOLEAN_FLAG(0, "showcpuutilization", &symbol_conf.show_cpu_utilization,
1054                     "Show sample percentage for different cpu modes", PARSE_OPT_HIDDEN),
1055         OPT_STRING('p', "parent", &parent_pattern, "regex",
1056                    "regex filter to identify parent, see: '--sort parent'"),
1057         OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other,
1058                     "Only display entries with parent-match"),
1059         OPT_CALLBACK_DEFAULT('g', "call-graph", &callchain_param,
1060                              "print_type,threshold[,print_limit],order,sort_key[,branch],value",
1061                              report_callchain_help, &report_parse_callchain_opt,
1062                              callchain_default_opt),
1063         OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain,
1064                     "Accumulate callchains of children and show total overhead as well"),
1065         OPT_INTEGER(0, "max-stack", &report.max_stack,
1066                     "Set the maximum stack depth when parsing the callchain, "
1067                     "anything beyond the specified depth will be ignored. "
1068                     "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)),
1069         OPT_BOOLEAN('G', "inverted", &report.inverted_callchain,
1070                     "alias for inverted call graph"),
1071         OPT_CALLBACK(0, "ignore-callees", NULL, "regex",
1072                    "ignore callees of these functions in call graphs",
1073                    report_parse_ignore_callees_opt),
1074         OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
1075                    "only consider symbols in these dsos"),
1076         OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
1077                    "only consider symbols in these comms"),
1078         OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]",
1079                    "only consider symbols in these pids"),
1080         OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]",
1081                    "only consider symbols in these tids"),
1082         OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
1083                    "only consider these symbols"),
1084         OPT_STRING(0, "symbol-filter", &report.symbol_filter_str, "filter",
1085                    "only show symbols that (partially) match with this filter"),
1086         OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str,
1087                    "width[,width...]",
1088                    "don't try to adjust column width, use these fixed values"),
1089         OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf.field_sep, "separator",
1090                    "separator for columns, no spaces will be added between "
1091                    "columns '.' is reserved."),
1092         OPT_BOOLEAN('U', "hide-unresolved", &symbol_conf.hide_unresolved,
1093                     "Only display entries resolved to a symbol"),
1094         OPT_CALLBACK(0, "symfs", NULL, "directory",
1095                      "Look for files with symbols relative to this directory",
1096                      symbol__config_symfs),
1097         OPT_STRING('C', "cpu", &report.cpu_list, "cpu",
1098                    "list of cpus to profile"),
1099         OPT_BOOLEAN('I', "show-info", &report.show_full_info,
1100                     "Display extended information about perf.data file"),
1101         OPT_BOOLEAN(0, "source", &report.annotation_opts.annotate_src,
1102                     "Interleave source code with assembly code (default)"),
1103         OPT_BOOLEAN(0, "asm-raw", &report.annotation_opts.show_asm_raw,
1104                     "Display raw encoding of assembly instructions (default)"),
1105         OPT_STRING('M', "disassembler-style", &report.annotation_opts.disassembler_style, "disassembler style",
1106                    "Specify disassembler style (e.g. -M intel for intel syntax)"),
1107         OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,
1108                     "Show a column with the sum of periods"),
1109         OPT_BOOLEAN_SET(0, "group", &symbol_conf.event_group, &report.group_set,
1110                     "Show event group information together"),
1111         OPT_CALLBACK_NOOPT('b', "branch-stack", &branch_mode, "",
1112                     "use branch records for per branch histogram filling",
1113                     parse_branch_mode),
1114         OPT_BOOLEAN(0, "branch-history", &branch_call_mode,
1115                     "add last branch records to call history"),
1116         OPT_STRING(0, "objdump", &report.annotation_opts.objdump_path, "path",
1117                    "objdump binary to use for disassembly and annotations"),
1118         OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
1119                     "Disable symbol demangling"),
1120         OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel,
1121                     "Enable kernel symbol demangling"),
1122         OPT_BOOLEAN(0, "mem-mode", &report.mem_mode, "mem access profile"),
1123         OPT_CALLBACK(0, "percent-limit", &report, "percent",
1124                      "Don't show entries under that percent", parse_percent_limit),
1125         OPT_CALLBACK(0, "percentage", NULL, "relative|absolute",
1126                      "how to display percentage of filtered entries", parse_filter_percentage),
1127         OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts",
1128                             "Instruction Tracing options\n" ITRACE_HELP,
1129                             itrace_parse_synth_opts),
1130         OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename,
1131                         "Show full source file name path for source lines"),
1132         OPT_BOOLEAN(0, "show-ref-call-graph", &symbol_conf.show_ref_callgraph,
1133                     "Show callgraph from reference event"),
1134         OPT_INTEGER(0, "socket-filter", &report.socket_filter,
1135                     "only show processor socket that match with this filter"),
1136         OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace,
1137                     "Show raw trace event output (do not use print fmt or plugins)"),
1138         OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy,
1139                     "Show entries in a hierarchy"),
1140         OPT_CALLBACK_DEFAULT(0, "stdio-color", NULL, "mode",
1141                              "'always' (default), 'never' or 'auto' only applicable to --stdio mode",
1142                              stdio__config_color, "always"),
1143         OPT_STRING(0, "time", &report.time_str, "str",
1144                    "Time span of interest (start,stop)"),
1145         OPT_BOOLEAN(0, "inline", &symbol_conf.inline_name,
1146                     "Show inline function"),
1147         OPT_CALLBACK(0, "percent-type", &report.annotation_opts, "local-period",
1148                      "Set percent type local/global-period/hits",
1149                      annotate_parse_percent_type),
1150         OPT_END()
1151         };
1152         struct perf_data data = {
1153                 .mode  = PERF_DATA_MODE_READ,
1154         };
1155         int ret = hists__init();
1156         char sort_tmp[128];
1157
1158         if (ret < 0)
1159                 return ret;
1160
1161         ret = perf_config(report__config, &report);
1162         if (ret)
1163                 return ret;
1164
1165         argc = parse_options(argc, argv, options, report_usage, 0);
1166         if (argc) {
1167                 /*
1168                  * Special case: if there's an argument left then assume that
1169                  * it's a symbol filter:
1170                  */
1171                 if (argc > 1)
1172                         usage_with_options(report_usage, options);
1173
1174                 report.symbol_filter_str = argv[0];
1175         }
1176
1177         if (report.mmaps_mode)
1178                 report.tasks_mode = true;
1179
1180         if (quiet)
1181                 perf_quiet_option();
1182
1183         if (symbol_conf.vmlinux_name &&
1184             access(symbol_conf.vmlinux_name, R_OK)) {
1185                 pr_err("Invalid file: %s\n", symbol_conf.vmlinux_name);
1186                 return -EINVAL;
1187         }
1188         if (symbol_conf.kallsyms_name &&
1189             access(symbol_conf.kallsyms_name, R_OK)) {
1190                 pr_err("Invalid file: %s\n", symbol_conf.kallsyms_name);
1191                 return -EINVAL;
1192         }
1193
1194         if (report.inverted_callchain)
1195                 callchain_param.order = ORDER_CALLER;
1196         if (symbol_conf.cumulate_callchain && !callchain_param.order_set)
1197                 callchain_param.order = ORDER_CALLER;
1198
1199         if (itrace_synth_opts.callchain &&
1200             (int)itrace_synth_opts.callchain_sz > report.max_stack)
1201                 report.max_stack = itrace_synth_opts.callchain_sz;
1202
1203         if (!input_name || !strlen(input_name)) {
1204                 if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
1205                         input_name = "-";
1206                 else
1207                         input_name = "perf.data";
1208         }
1209
1210         data.path  = input_name;
1211         data.force = symbol_conf.force;
1212
1213 repeat:
1214         session = perf_session__new(&data, false, &report.tool);
1215         if (session == NULL)
1216                 return -1;
1217
1218         if (report.queue_size) {
1219                 ordered_events__set_alloc_size(&session->ordered_events,
1220                                                report.queue_size);
1221         }
1222
1223         session->itrace_synth_opts = &itrace_synth_opts;
1224
1225         report.session = session;
1226
1227         has_br_stack = perf_header__has_feat(&session->header,
1228                                              HEADER_BRANCH_STACK);
1229
1230         setup_forced_leader(&report, session->evlist);
1231
1232         if (itrace_synth_opts.last_branch)
1233                 has_br_stack = true;
1234
1235         if (has_br_stack && branch_call_mode)
1236                 symbol_conf.show_branchflag_count = true;
1237
1238         memset(&report.brtype_stat, 0, sizeof(struct branch_type_stat));
1239
1240         /*
1241          * Branch mode is a tristate:
1242          * -1 means default, so decide based on the file having branch data.
1243          * 0/1 means the user chose a mode.
1244          */
1245         if (((branch_mode == -1 && has_br_stack) || branch_mode == 1) &&
1246             !branch_call_mode) {
1247                 sort__mode = SORT_MODE__BRANCH;
1248                 symbol_conf.cumulate_callchain = false;
1249         }
1250         if (branch_call_mode) {
1251                 callchain_param.key = CCKEY_ADDRESS;
1252                 callchain_param.branch_callstack = 1;
1253                 symbol_conf.use_callchain = true;
1254                 callchain_register_param(&callchain_param);
1255                 if (sort_order == NULL)
1256                         sort_order = "srcline,symbol,dso";
1257         }
1258
1259         if (report.mem_mode) {
1260                 if (sort__mode == SORT_MODE__BRANCH) {
1261                         pr_err("branch and mem mode incompatible\n");
1262                         goto error;
1263                 }
1264                 sort__mode = SORT_MODE__MEMORY;
1265                 symbol_conf.cumulate_callchain = false;
1266         }
1267
1268         if (symbol_conf.report_hierarchy) {
1269                 /* disable incompatible options */
1270                 symbol_conf.cumulate_callchain = false;
1271
1272                 if (field_order) {
1273                         pr_err("Error: --hierarchy and --fields options cannot be used together\n");
1274                         parse_options_usage(report_usage, options, "F", 1);
1275                         parse_options_usage(NULL, options, "hierarchy", 0);
1276                         goto error;
1277                 }
1278
1279                 perf_hpp_list.need_collapse = true;
1280         }
1281
1282         if (report.use_stdio)
1283                 use_browser = 0;
1284         else if (report.use_tui)
1285                 use_browser = 1;
1286         else if (report.use_gtk)
1287                 use_browser = 2;
1288
1289         /* Force tty output for header output and per-thread stat. */
1290         if (report.header || report.header_only || report.show_threads)
1291                 use_browser = 0;
1292         if (report.header || report.header_only)
1293                 report.tool.show_feat_hdr = SHOW_FEAT_HEADER;
1294         if (report.show_full_info)
1295                 report.tool.show_feat_hdr = SHOW_FEAT_HEADER_FULL_INFO;
1296         if (report.stats_mode || report.tasks_mode)
1297                 use_browser = 0;
1298         if (report.stats_mode && report.tasks_mode) {
1299                 pr_err("Error: --tasks and --mmaps can't be used together with --stats\n");
1300                 goto error;
1301         }
1302
1303         if (strcmp(input_name, "-") != 0)
1304                 setup_browser(true);
1305         else
1306                 use_browser = 0;
1307
1308         if (sort_order && strstr(sort_order, "ipc")) {
1309                 parse_options_usage(report_usage, options, "s", 1);
1310                 goto error;
1311         }
1312
1313         if (sort_order && strstr(sort_order, "symbol")) {
1314                 if (sort__mode == SORT_MODE__BRANCH) {
1315                         snprintf(sort_tmp, sizeof(sort_tmp), "%s,%s",
1316                                  sort_order, "ipc_lbr");
1317                         report.symbol_ipc = true;
1318                 } else {
1319                         snprintf(sort_tmp, sizeof(sort_tmp), "%s,%s",
1320                                  sort_order, "ipc_null");
1321                 }
1322
1323                 sort_order = sort_tmp;
1324         }
1325
1326         if (setup_sorting(session->evlist) < 0) {
1327                 if (sort_order)
1328                         parse_options_usage(report_usage, options, "s", 1);
1329                 if (field_order)
1330                         parse_options_usage(sort_order ? NULL : report_usage,
1331                                             options, "F", 1);
1332                 goto error;
1333         }
1334
1335         if ((report.header || report.header_only) && !quiet) {
1336                 perf_session__fprintf_info(session, stdout,
1337                                            report.show_full_info);
1338                 if (report.header_only) {
1339                         ret = 0;
1340                         goto error;
1341                 }
1342         } else if (use_browser == 0 && !quiet &&
1343                    !report.stats_mode && !report.tasks_mode) {
1344                 fputs("# To display the perf.data header info, please use --header/--header-only options.\n#\n",
1345                       stdout);
1346         }
1347
1348         /*
1349          * Only in the TUI browser we are doing integrated annotation,
1350          * so don't allocate extra space that won't be used in the stdio
1351          * implementation.
1352          */
1353         if (ui__has_annotation() || report.symbol_ipc) {
1354                 ret = symbol__annotation_init();
1355                 if (ret < 0)
1356                         goto error;
1357                 /*
1358                  * For searching by name on the "Browse map details".
1359                  * providing it only in verbose mode not to bloat too
1360                  * much struct symbol.
1361                  */
1362                 if (verbose > 0) {
1363                         /*
1364                          * XXX: Need to provide a less kludgy way to ask for
1365                          * more space per symbol, the u32 is for the index on
1366                          * the ui browser.
1367                          * See symbol__browser_index.
1368                          */
1369                         symbol_conf.priv_size += sizeof(u32);
1370                         symbol_conf.sort_by_name = true;
1371                 }
1372                 annotation_config__init();
1373         }
1374
1375         if (symbol__init(&session->header.env) < 0)
1376                 goto error;
1377
1378         if (report.time_str) {
1379                 ret = perf_time__parse_for_ranges(report.time_str, session,
1380                                                   &report.ptime_range,
1381                                                   &report.range_size,
1382                                                   &report.range_num);
1383                 if (ret < 0)
1384                         goto error;
1385         }
1386
1387         if (session->tevent.pevent &&
1388             tep_set_function_resolver(session->tevent.pevent,
1389                                       machine__resolve_kernel_addr,
1390                                       &session->machines.host) < 0) {
1391                 pr_err("%s: failed to set libtraceevent function resolver\n",
1392                        __func__);
1393                 return -1;
1394         }
1395
1396         sort__setup_elide(stdout);
1397
1398         ret = __cmd_report(&report);
1399         if (ret == K_SWITCH_INPUT_DATA) {
1400                 perf_session__delete(session);
1401                 goto repeat;
1402         } else
1403                 ret = 0;
1404
1405 error:
1406         if (report.ptime_range)
1407                 zfree(&report.ptime_range);
1408
1409         perf_session__delete(session);
1410         return ret;
1411 }