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/config.h"
  12
  13 #include "util/annotate.h"
  14 #include "util/color.h"
  15 #include "util/dso.h"
  16 #include <linux/list.h>
  17 #include <linux/rbtree.h>
  18 #include <linux/err.h>
  19 #include <linux/zalloc.h>
  20 #include "util/map.h"
  21 #include "util/symbol.h"
  22 #include "util/map_symbol.h"
  23 #include "util/mem-events.h"
  24 #include "util/branch.h"
  25 #include "util/callchain.h"
  26 #include "util/values.h"
  27
  28 #include "perf.h"
  29 #include "util/debug.h"
  30 #include "util/evlist.h"
  31 #include "util/evsel.h"
  32 #include "util/evswitch.h"
  33 #include "util/header.h"
  34 #include "util/session.h"
  35 #include "util/srcline.h"
  36 #include "util/tool.h"
  37
  38 #include <subcmd/parse-options.h>
  39 #include <subcmd/exec-cmd.h>
  40 #include "util/parse-events.h"
  41
  42 #include "util/thread.h"
  43 #include "util/sort.h"
  44 #include "util/hist.h"
  45 #include "util/data.h"
  46 #include "arch/common.h"
  47 #include "util/time-utils.h"
  48 #include "util/auxtrace.h"
  49 #include "util/units.h"
  50 #include "util/util.h" // perf_tip()
  51 #include "ui/ui.h"
  52 #include "ui/progress.h"
  53 #include "util/block-info.h"
  54
  55 #include <dlfcn.h>
  56 #include <errno.h>
  57 #include <inttypes.h>
  58 #include <regex.h>
  59 #include <linux/ctype.h>
  60 #include <signal.h>
  61 #include <linux/bitmap.h>
  62 #include <linux/string.h>
  63 #include <linux/stringify.h>
  64 #include <linux/time64.h>
  65 #include <sys/types.h>
  66 #include <sys/stat.h>
  67 #include <unistd.h>
  68 #include <linux/mman.h>
  69
  70 struct report {
  71         struct perf_tool        tool;
  72         struct perf_session     *session;
  73         struct evswitch         evswitch;
  74         bool                    use_tui, use_gtk, use_stdio;
  75         bool                    show_full_info;
  76         bool                    show_threads;
  77         bool                    inverted_callchain;
  78         bool                    mem_mode;
  79         bool                    stats_mode;
  80         bool                    tasks_mode;
  81         bool                    mmaps_mode;
  82         bool                    header;
  83         bool                    header_only;
  84         bool                    nonany_branch_mode;
  85         bool                    group_set;
  86         bool                    stitch_lbr;
  87         int                     max_stack;
  88         struct perf_read_values show_threads_values;
  89         struct annotation_options annotation_opts;
  90         const char              *pretty_printing_style;
  91         const char              *cpu_list;
  92         const char              *symbol_filter_str;
  93         const char              *time_str;
  94         struct perf_time_interval *ptime_range;
  95         int                     range_size;
  96         int                     range_num;
  97         float                   min_percent;
  98         u64                     nr_entries;
  99         u64                     queue_size;
 100         u64                     total_cycles;
 101         int                     socket_filter;
 102         DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
 103         struct branch_type_stat brtype_stat;
 104         bool                    symbol_ipc;
 105         bool                    total_cycles_mode;
 106         struct block_report     *block_reports;
 107         int                     nr_block_reports;
 108 };
 109
 110 static int report__config(const char *var, const char *value, void *cb)
 111 {
 112         struct report *rep = cb;
 113
 114         if (!strcmp(var, "report.group")) {
 115                 symbol_conf.event_group = perf_config_bool(var, value);
 116                 return 0;
 117         }
 118         if (!strcmp(var, "report.percent-limit")) {
 119                 double pcnt = strtof(value, NULL);
 120
 121                 rep->min_percent = pcnt;
 122                 callchain_param.min_percent = pcnt;
 123                 return 0;
 124         }
 125         if (!strcmp(var, "report.children")) {
 126                 symbol_conf.cumulate_callchain = perf_config_bool(var, value);
 127                 return 0;
 128         }
 129         if (!strcmp(var, "report.queue-size"))
 130                 return perf_config_u64(&rep->queue_size, var, value);
 131
 132         if (!strcmp(var, "report.sort_order")) {
 133                 default_sort_order = strdup(value);
 134                 return 0;
 135         }
 136
 137         return 0;
 138 }
 139
 140 static int hist_iter__report_callback(struct hist_entry_iter *iter,
 141                                       struct addr_location *al, bool single,
 142                                       void *arg)
 143 {
 144         int err = 0;
 145         struct report *rep = arg;
 146         struct hist_entry *he = iter->he;
 147         struct evsel *evsel = iter->evsel;
 148         struct perf_sample *sample = iter->sample;
 149         struct mem_info *mi;
 150         struct branch_info *bi;
 151
 152         if (!ui__has_annotation() && !rep->symbol_ipc)
 153                 return 0;
 154
 155         if (sort__mode == SORT_MODE__BRANCH) {
 156                 bi = he->branch_info;
 157                 err = addr_map_symbol__inc_samples(&bi->from, sample, evsel);
 158                 if (err)
 159                         goto out;
 160
 161                 err = addr_map_symbol__inc_samples(&bi->to, sample, evsel);
 162
 163         } else if (rep->mem_mode) {
 164                 mi = he->mem_info;
 165                 err = addr_map_symbol__inc_samples(&mi->daddr, sample, evsel);
 166                 if (err)
 167                         goto out;
 168
 169                 err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr);
 170
 171         } else if (symbol_conf.cumulate_callchain) {
 172                 if (single)
 173                         err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr);
 174         } else {
 175                 err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr);
 176         }
 177
 178 out:
 179         return err;
 180 }
 181
 182 static int hist_iter__branch_callback(struct hist_entry_iter *iter,
 183                                       struct addr_location *al __maybe_unused,
 184                                       bool single __maybe_unused,
 185                                       void *arg)
 186 {
 187         struct hist_entry *he = iter->he;
 188         struct report *rep = arg;
 189         struct branch_info *bi = he->branch_info;
 190         struct perf_sample *sample = iter->sample;
 191         struct evsel *evsel = iter->evsel;
 192         int err;
 193
 194         branch_type_count(&rep->brtype_stat, &bi->flags,
 195                           bi->from.addr, bi->to.addr);
 196
 197         if (!ui__has_annotation() && !rep->symbol_ipc)
 198                 return 0;
 199
 200         err = addr_map_symbol__inc_samples(&bi->from, sample, evsel);
 201         if (err)
 202                 goto out;
 203
 204         err = addr_map_symbol__inc_samples(&bi->to, sample, evsel);
 205
 206 out:
 207         return err;
 208 }
 209
 210 static void setup_forced_leader(struct report *report,
 211                                 struct evlist *evlist)
 212 {
 213         if (report->group_set)
 214                 evlist__force_leader(evlist);
 215 }
 216
 217 static int process_feature_event(struct perf_session *session,
 218                                  union perf_event *event)
 219 {
 220         struct report *rep = container_of(session->tool, struct report, tool);
 221
 222         if (event->feat.feat_id < HEADER_LAST_FEATURE)
 223                 return perf_event__process_feature(session, event);
 224
 225         if (event->feat.feat_id != HEADER_LAST_FEATURE) {
 226                 pr_err("failed: wrong feature ID: %" PRI_lu64 "\n",
 227                        event->feat.feat_id);
 228                 return -1;
 229         } else if (rep->header_only) {
 230                 session_done = 1;
 231         }
 232
 233         /*
 234          * (feat_id = HEADER_LAST_FEATURE) is the end marker which
 235          * means all features are received, now we can force the
 236          * group if needed.
 237          */
 238         setup_forced_leader(rep, session->evlist);
 239         return 0;
 240 }
 241
 242 static int process_sample_event(struct perf_tool *tool,
 243                                 union perf_event *event,
 244                                 struct perf_sample *sample,
 245                                 struct evsel *evsel,
 246                                 struct machine *machine)
 247 {
 248         struct report *rep = container_of(tool, struct report, tool);
 249         struct addr_location al;
 250         struct hist_entry_iter iter = {
 251                 .evsel                  = evsel,
 252                 .sample                 = sample,
 253                 .hide_unresolved        = symbol_conf.hide_unresolved,
 254                 .add_entry_cb           = hist_iter__report_callback,
 255         };
 256         int ret = 0;
 257
 258         if (perf_time__ranges_skip_sample(rep->ptime_range, rep->range_num,
 259                                           sample->time)) {
 260                 return 0;
 261         }
 262
 263         if (evswitch__discard(&rep->evswitch, evsel))
 264                 return 0;
 265
 266         if (machine__resolve(machine, &al, sample) < 0) {
 267                 pr_debug("problem processing %d event, skipping it.\n",
 268                          event->header.type);
 269                 return -1;
 270         }
 271
 272         if (rep->stitch_lbr)
 273                 al.thread->lbr_stitch_enable = true;
 274
 275         if (symbol_conf.hide_unresolved && al.sym == NULL)
 276                 goto out_put;
 277
 278         if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap))
 279                 goto out_put;
 280
 281         if (sort__mode == SORT_MODE__BRANCH) {
 282                 /*
 283                  * A non-synthesized event might not have a branch stack if
 284                  * branch stacks have been synthesized (using itrace options).
 285                  */
 286                 if (!sample->branch_stack)
 287                         goto out_put;
 288
 289                 iter.add_entry_cb = hist_iter__branch_callback;
 290                 iter.ops = &hist_iter_branch;
 291         } else if (rep->mem_mode) {
 292                 iter.ops = &hist_iter_mem;
 293         } else if (symbol_conf.cumulate_callchain) {
 294                 iter.ops = &hist_iter_cumulative;
 295         } else {
 296                 iter.ops = &hist_iter_normal;
 297         }
 298
 299         if (al.map != NULL)
 300                 al.map->dso->hit = 1;
 301
 302         if (ui__has_annotation() || rep->symbol_ipc || rep->total_cycles_mode) {
 303                 hist__account_cycles(sample->branch_stack, &al, sample,
 304                                      rep->nonany_branch_mode,
 305                                      &rep->total_cycles);
 306         }
 307
 308         ret = hist_entry_iter__add(&iter, &al, rep->max_stack, rep);
 309         if (ret < 0)
 310                 pr_debug("problem adding hist entry, skipping event\n");
 311 out_put:
 312         addr_location__put(&al);
 313         return ret;
 314 }
 315
 316 static int process_read_event(struct perf_tool *tool,
 317                               union perf_event *event,
 318                               struct perf_sample *sample __maybe_unused,
 319                               struct evsel *evsel,
 320                               struct machine *machine __maybe_unused)
 321 {
 322         struct report *rep = container_of(tool, struct report, tool);
 323
 324         if (rep->show_threads) {
 325                 const char *name = evsel__name(evsel);
 326                 int err = perf_read_values_add_value(&rep->show_threads_values,
 327                                            event->read.pid, event->read.tid,
 328                                            evsel->idx,
 329                                            name,
 330                                            event->read.value);
 331
 332                 if (err)
 333                         return err;
 334         }
 335
 336         return 0;
 337 }
 338
 339 /* For pipe mode, sample_type is not currently set */
 340 static int report__setup_sample_type(struct report *rep)
 341 {
 342         struct perf_session *session = rep->session;
 343         u64 sample_type = evlist__combined_sample_type(session->evlist);
 344         bool is_pipe = perf_data__is_pipe(session->data);
 345
 346         if (session->itrace_synth_opts->callchain ||
 347             session->itrace_synth_opts->add_callchain ||
 348             (!is_pipe &&
 349              perf_header__has_feat(&session->header, HEADER_AUXTRACE) &&
 350              !session->itrace_synth_opts->set))
 351                 sample_type |= PERF_SAMPLE_CALLCHAIN;
 352
 353         if (session->itrace_synth_opts->last_branch ||
 354             session->itrace_synth_opts->add_last_branch)
 355                 sample_type |= PERF_SAMPLE_BRANCH_STACK;
 356
 357         if (!is_pipe && !(sample_type & PERF_SAMPLE_CALLCHAIN)) {
 358                 if (perf_hpp_list.parent) {
 359                         ui__error("Selected --sort parent, but no "
 360                                     "callchain data. Did you call "
 361                                     "'perf record' without -g?\n");
 362                         return -EINVAL;
 363                 }
 364                 if (symbol_conf.use_callchain &&
 365                         !symbol_conf.show_branchflag_count) {
 366                         ui__error("Selected -g or --branch-history.\n"
 367                                   "But no callchain or branch data.\n"
 368                                   "Did you call 'perf record' without -g or -b?\n");
 369                         return -1;
 370                 }
 371         } else if (!callchain_param.enabled &&
 372                    callchain_param.mode != CHAIN_NONE &&
 373                    !symbol_conf.use_callchain) {
 374                         symbol_conf.use_callchain = true;
 375                         if (callchain_register_param(&callchain_param) < 0) {
 376                                 ui__error("Can't register callchain params.\n");
 377                                 return -EINVAL;
 378                         }
 379         }
 380
 381         if (symbol_conf.cumulate_callchain) {
 382                 /* Silently ignore if callchain is missing */
 383                 if (!(sample_type & PERF_SAMPLE_CALLCHAIN)) {
 384                         symbol_conf.cumulate_callchain = false;
 385                         perf_hpp__cancel_cumulate();
 386                 }
 387         }
 388
 389         if (sort__mode == SORT_MODE__BRANCH) {
 390                 if (!is_pipe &&
 391                     !(sample_type & PERF_SAMPLE_BRANCH_STACK)) {
 392                         ui__error("Selected -b but no branch data. "
 393                                   "Did you call perf record without -b?\n");
 394                         return -1;
 395                 }
 396         }
 397
 398         if (sort__mode == SORT_MODE__MEMORY) {
 399                 if (!is_pipe && !(sample_type & PERF_SAMPLE_DATA_SRC)) {
 400                         ui__error("Selected --mem-mode but no mem data. "
 401                                   "Did you call perf record without -d?\n");
 402                         return -1;
 403                 }
 404         }
 405
 406         callchain_param_setup(sample_type);
 407
 408         if (rep->stitch_lbr && (callchain_param.record_mode != CALLCHAIN_LBR)) {
 409                 ui__warning("Can't find LBR callchain. Switch off --stitch-lbr.\n"
 410                             "Please apply --call-graph lbr when recording.\n");
 411                 rep->stitch_lbr = false;
 412         }
 413
 414         /* ??? handle more cases than just ANY? */
 415         if (!(evlist__combined_branch_type(session->evlist) & PERF_SAMPLE_BRANCH_ANY))
 416                 rep->nonany_branch_mode = true;
 417
 418 #if !defined(HAVE_LIBUNWIND_SUPPORT) && !defined(HAVE_DWARF_SUPPORT)
 419         if (dwarf_callchain_users) {
 420                 ui__warning("Please install libunwind or libdw "
 421                             "development packages during the perf build.\n");
 422         }
 423 #endif
 424
 425         return 0;
 426 }
 427
 428 static void sig_handler(int sig __maybe_unused)
 429 {
 430         session_done = 1;
 431 }
 432
 433 static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report *rep,
 434                                               const char *evname, FILE *fp)
 435 {
 436         size_t ret;
 437         char unit;
 438         unsigned long nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE];
 439         u64 nr_events = hists->stats.total_period;
 440         struct evsel *evsel = hists_to_evsel(hists);
 441         char buf[512];
 442         size_t size = sizeof(buf);
 443         int socked_id = hists->socket_filter;
 444
 445         if (quiet)
 446                 return 0;
 447
 448         if (symbol_conf.filter_relative) {
 449                 nr_samples = hists->stats.nr_non_filtered_samples;
 450                 nr_events = hists->stats.total_non_filtered_period;
 451         }
 452
 453         if (evsel__is_group_event(evsel)) {
 454                 struct evsel *pos;
 455
 456                 evsel__group_desc(evsel, buf, size);
 457                 evname = buf;
 458
 459                 for_each_group_member(pos, evsel) {
 460                         const struct hists *pos_hists = evsel__hists(pos);
 461
 462                         if (symbol_conf.filter_relative) {
 463                                 nr_samples += pos_hists->stats.nr_non_filtered_samples;
 464                                 nr_events += pos_hists->stats.total_non_filtered_period;
 465                         } else {
 466                                 nr_samples += pos_hists->stats.nr_events[PERF_RECORD_SAMPLE];
 467                                 nr_events += pos_hists->stats.total_period;
 468                         }
 469                 }
 470         }
 471
 472         nr_samples = convert_unit(nr_samples, &unit);
 473         ret = fprintf(fp, "# Samples: %lu%c", nr_samples, unit);
 474         if (evname != NULL) {
 475                 ret += fprintf(fp, " of event%s '%s'",
 476                                evsel->core.nr_members > 1 ? "s" : "", evname);
 477         }
 478
 479         if (rep->time_str)
 480                 ret += fprintf(fp, " (time slices: %s)", rep->time_str);
 481
 482         if (symbol_conf.show_ref_callgraph && evname && strstr(evname, "call-graph=no")) {
 483                 ret += fprintf(fp, ", show reference callgraph");
 484         }
 485
 486         if (rep->mem_mode) {
 487                 ret += fprintf(fp, "\n# Total weight : %" PRIu64, nr_events);
 488                 ret += fprintf(fp, "\n# Sort order   : %s", sort_order ? : default_mem_sort_order);
 489         } else
 490                 ret += fprintf(fp, "\n# Event count (approx.): %" PRIu64, nr_events);
 491
 492         if (socked_id > -1)
 493                 ret += fprintf(fp, "\n# Processor Socket: %d", socked_id);
 494
 495         return ret + fprintf(fp, "\n#\n");
 496 }
 497
 498 static int evlist__tui_block_hists_browse(struct evlist *evlist, struct report *rep)
 499 {
 500         struct evsel *pos;
 501         int i = 0, ret;
 502
 503         evlist__for_each_entry(evlist, pos) {
 504                 ret = report__browse_block_hists(&rep->block_reports[i++].hist,
 505                                                  rep->min_percent, pos,
 506                                                  &rep->session->header.env,
 507                                                  &rep->annotation_opts);
 508                 if (ret != 0)
 509                         return ret;
 510         }
 511
 512         return 0;
 513 }
 514
 515 static int evlist__tty_browse_hists(struct evlist *evlist, struct report *rep, const char *help)
 516 {
 517         struct evsel *pos;
 518         int i = 0;
 519
 520         if (!quiet) {
 521                 fprintf(stdout, "#\n# Total Lost Samples: %" PRIu64 "\n#\n",
 522                         evlist->stats.total_lost_samples);
 523         }
 524
 525         evlist__for_each_entry(evlist, pos) {
 526                 struct hists *hists = evsel__hists(pos);
 527                 const char *evname = evsel__name(pos);
 528
 529                 if (symbol_conf.event_group && !evsel__is_group_leader(pos))
 530                         continue;
 531
 532                 hists__fprintf_nr_sample_events(hists, rep, evname, stdout);
 533
 534                 if (rep->total_cycles_mode) {
 535                         report__browse_block_hists(&rep->block_reports[i++].hist,
 536                                                    rep->min_percent, pos,
 537                                                    NULL, NULL);
 538                         continue;
 539                 }
 540
 541                 hists__fprintf(hists, !quiet, 0, 0, rep->min_percent, stdout,
 542                                !(symbol_conf.use_callchain ||
 543                                  symbol_conf.show_branchflag_count));
 544                 fprintf(stdout, "\n\n");
 545         }
 546
 547         if (!quiet)
 548                 fprintf(stdout, "#\n# (%s)\n#\n", help);
 549
 550         if (rep->show_threads) {
 551                 bool style = !strcmp(rep->pretty_printing_style, "raw");
 552                 perf_read_values_display(stdout, &rep->show_threads_values,
 553                                          style);
 554                 perf_read_values_destroy(&rep->show_threads_values);
 555         }
 556
 557         if (sort__mode == SORT_MODE__BRANCH)
 558                 branch_type_stat_display(stdout, &rep->brtype_stat);
 559
 560         return 0;
 561 }
 562
 563 static void report__warn_kptr_restrict(const struct report *rep)
 564 {
 565         struct map *kernel_map = machine__kernel_map(&rep->session->machines.host);
 566         struct kmap *kernel_kmap = kernel_map ? map__kmap(kernel_map) : NULL;
 567
 568         if (evlist__exclude_kernel(rep->session->evlist))
 569                 return;
 570
 571         if (kernel_map == NULL ||
 572             (kernel_map->dso->hit &&
 573              (kernel_kmap->ref_reloc_sym == NULL ||
 574               kernel_kmap->ref_reloc_sym->addr == 0))) {
 575                 const char *desc =
 576                     "As no suitable kallsyms nor vmlinux was found, kernel samples\n"
 577                     "can't be resolved.";
 578
 579                 if (kernel_map && map__has_symbols(kernel_map)) {
 580                         desc = "If some relocation was applied (e.g. "
 581                                "kexec) symbols may be misresolved.";
 582                 }
 583
 584                 ui__warning(
 585 "Kernel address maps (/proc/{kallsyms,modules}) were restricted.\n\n"
 586 "Check /proc/sys/kernel/kptr_restrict before running 'perf record'.\n\n%s\n\n"
 587 "Samples in kernel modules can't be resolved as well.\n\n",
 588                 desc);
 589         }
 590 }
 591
 592 static int report__gtk_browse_hists(struct report *rep, const char *help)
 593 {
 594         int (*hist_browser)(struct evlist *evlist, const char *help,
 595                             struct hist_browser_timer *timer, float min_pcnt);
 596
 597         hist_browser = dlsym(perf_gtk_handle, "evlist__gtk_browse_hists");
 598
 599         if (hist_browser == NULL) {
 600                 ui__error("GTK browser not found!\n");
 601                 return -1;
 602         }
 603
 604         return hist_browser(rep->session->evlist, help, NULL, rep->min_percent);
 605 }
 606
 607 static int report__browse_hists(struct report *rep)
 608 {
 609         int ret;
 610         struct perf_session *session = rep->session;
 611         struct evlist *evlist = session->evlist;
 612         const char *help = perf_tip(system_path(TIPDIR));
 613
 614         if (help == NULL) {
 615                 /* fallback for people who don't install perf ;-) */
 616                 help = perf_tip(DOCDIR);
 617                 if (help == NULL)
 618                         help = "Cannot load tips.txt file, please install perf!";
 619         }
 620
 621         switch (use_browser) {
 622         case 1:
 623                 if (rep->total_cycles_mode) {
 624                         ret = evlist__tui_block_hists_browse(evlist, rep);
 625                         break;
 626                 }
 627
 628                 ret = evlist__tui_browse_hists(evlist, help, NULL, rep->min_percent,
 629                                                &session->header.env, true, &rep->annotation_opts);
 630                 /*
 631                  * Usually "ret" is the last pressed key, and we only
 632                  * care if the key notifies us to switch data file.
 633                  */
 634                 if (ret != K_SWITCH_INPUT_DATA && ret != K_RELOAD)
 635                         ret = 0;
 636                 break;
 637         case 2:
 638                 ret = report__gtk_browse_hists(rep, help);
 639                 break;
 640         default:
 641                 ret = evlist__tty_browse_hists(evlist, rep, help);
 642                 break;
 643         }
 644
 645         return ret;
 646 }
 647
 648 static int report__collapse_hists(struct report *rep)
 649 {
 650         struct ui_progress prog;
 651         struct evsel *pos;
 652         int ret = 0;
 653
 654         ui_progress__init(&prog, rep->nr_entries, "Merging related events...");
 655
 656         evlist__for_each_entry(rep->session->evlist, pos) {
 657                 struct hists *hists = evsel__hists(pos);
 658
 659                 if (pos->idx == 0)
 660                         hists->symbol_filter_str = rep->symbol_filter_str;
 661
 662                 hists->socket_filter = rep->socket_filter;
 663
 664                 ret = hists__collapse_resort(hists, &prog);
 665                 if (ret < 0)
 666                         break;
 667
 668                 /* Non-group events are considered as leader */
 669                 if (symbol_conf.event_group && !evsel__is_group_leader(pos)) {
 670                         struct hists *leader_hists = evsel__hists(pos->leader);
 671
 672                         hists__match(leader_hists, hists);
 673                         hists__link(leader_hists, hists);
 674                 }
 675         }
 676
 677         ui_progress__finish();
 678         return ret;
 679 }
 680
 681 static int hists__resort_cb(struct hist_entry *he, void *arg)
 682 {
 683         struct report *rep = arg;
 684         struct symbol *sym = he->ms.sym;
 685
 686         if (rep->symbol_ipc && sym && !sym->annotate2) {
 687                 struct evsel *evsel = hists_to_evsel(he->hists);
 688
 689                 symbol__annotate2(&he->ms, evsel,
 690                                   &annotation__default_options, NULL);
 691         }
 692
 693         return 0;
 694 }
 695
 696 static void report__output_resort(struct report *rep)
 697 {
 698         struct ui_progress prog;
 699         struct evsel *pos;
 700
 701         ui_progress__init(&prog, rep->nr_entries, "Sorting events for output...");
 702
 703         evlist__for_each_entry(rep->session->evlist, pos) {
 704                 evsel__output_resort_cb(pos, &prog, hists__resort_cb, rep);
 705         }
 706
 707         ui_progress__finish();
 708 }
 709
 710 static void stats_setup(struct report *rep)
 711 {
 712         memset(&rep->tool, 0, sizeof(rep->tool));
 713         rep->tool.no_warn = true;
 714 }
 715
 716 static int stats_print(struct report *rep)
 717 {
 718         struct perf_session *session = rep->session;
 719
 720         perf_session__fprintf_nr_events(session, stdout);
 721         return 0;
 722 }
 723
 724 static void tasks_setup(struct report *rep)
 725 {
 726         memset(&rep->tool, 0, sizeof(rep->tool));
 727         rep->tool.ordered_events = true;
 728         if (rep->mmaps_mode) {
 729                 rep->tool.mmap = perf_event__process_mmap;
 730                 rep->tool.mmap2 = perf_event__process_mmap2;
 731         }
 732         rep->tool.comm = perf_event__process_comm;
 733         rep->tool.exit = perf_event__process_exit;
 734         rep->tool.fork = perf_event__process_fork;
 735         rep->tool.no_warn = true;
 736 }
 737
 738 struct task {
 739         struct thread           *thread;
 740         struct list_head         list;
 741         struct list_head         children;
 742 };
 743
 744 static struct task *tasks_list(struct task *task, struct machine *machine)
 745 {
 746         struct thread *parent_thread, *thread = task->thread;
 747         struct task   *parent_task;
 748
 749         /* Already listed. */
 750         if (!list_empty(&task->list))
 751                 return NULL;
 752
 753         /* Last one in the chain. */
 754         if (thread->ppid == -1)
 755                 return task;
 756
 757         parent_thread = machine__find_thread(machine, -1, thread->ppid);
 758         if (!parent_thread)
 759                 return ERR_PTR(-ENOENT);
 760
 761         parent_task = thread__priv(parent_thread);
 762         list_add_tail(&task->list, &parent_task->children);
 763         return tasks_list(parent_task, machine);
 764 }
 765
 766 static size_t maps__fprintf_task(struct maps *maps, int indent, FILE *fp)
 767 {
 768         size_t printed = 0;
 769         struct map *map;
 770
 771         maps__for_each_entry(maps, map) {
 772                 printed += fprintf(fp, "%*s  %" PRIx64 "-%" PRIx64 " %c%c%c%c %08" PRIx64 " %" PRIu64 " %s\n",
 773                                    indent, "", map->start, map->end,
 774                                    map->prot & PROT_READ ? 'r' : '-',
 775                                    map->prot & PROT_WRITE ? 'w' : '-',
 776                                    map->prot & PROT_EXEC ? 'x' : '-',
 777                                    map->flags & MAP_SHARED ? 's' : 'p',
 778                                    map->pgoff,
 779                                    map->dso->id.ino, map->dso->name);
 780         }
 781
 782         return printed;
 783 }
 784
 785 static void task__print_level(struct task *task, FILE *fp, int level)
 786 {
 787         struct thread *thread = task->thread;
 788         struct task *child;
 789         int comm_indent = fprintf(fp, "  %8d %8d %8d |%*s",
 790                                   thread->pid_, thread->tid, thread->ppid,
 791                                   level, "");
 792
 793         fprintf(fp, "%s\n", thread__comm_str(thread));
 794
 795         maps__fprintf_task(thread->maps, comm_indent, fp);
 796
 797         if (!list_empty(&task->children)) {
 798                 list_for_each_entry(child, &task->children, list)
 799                         task__print_level(child, fp, level + 1);
 800         }
 801 }
 802
 803 static int tasks_print(struct report *rep, FILE *fp)
 804 {
 805         struct perf_session *session = rep->session;
 806         struct machine      *machine = &session->machines.host;
 807         struct task *tasks, *task;
 808         unsigned int nr = 0, itask = 0, i;
 809         struct rb_node *nd;
 810         LIST_HEAD(list);
 811
 812         /*
 813          * No locking needed while accessing machine->threads,
 814          * because --tasks is single threaded command.
 815          */
 816
 817         /* Count all the threads. */
 818         for (i = 0; i < THREADS__TABLE_SIZE; i++)
 819                 nr += machine->threads[i].nr;
 820
 821         tasks = malloc(sizeof(*tasks) * nr);
 822         if (!tasks)
 823                 return -ENOMEM;
 824
 825         for (i = 0; i < THREADS__TABLE_SIZE; i++) {
 826                 struct threads *threads = &machine->threads[i];
 827
 828                 for (nd = rb_first_cached(&threads->entries); nd;
 829                      nd = rb_next(nd)) {
 830                         task = tasks + itask++;
 831
 832                         task->thread = rb_entry(nd, struct thread, rb_node);
 833                         INIT_LIST_HEAD(&task->children);
 834                         INIT_LIST_HEAD(&task->list);
 835                         thread__set_priv(task->thread, task);
 836                 }
 837         }
 838
 839         /*
 840          * Iterate every task down to the unprocessed parent
 841          * and link all in task children list. Task with no
 842          * parent is added into 'list'.
 843          */
 844         for (itask = 0; itask < nr; itask++) {
 845                 task = tasks + itask;
 846
 847                 if (!list_empty(&task->list))
 848                         continue;
 849
 850                 task = tasks_list(task, machine);
 851                 if (IS_ERR(task)) {
 852                         pr_err("Error: failed to process tasks\n");
 853                         free(tasks);
 854                         return PTR_ERR(task);
 855                 }
 856
 857                 if (task)
 858                         list_add_tail(&task->list, &list);
 859         }
 860
 861         fprintf(fp, "# %8s %8s %8s  %s\n", "pid", "tid", "ppid", "comm");
 862
 863         list_for_each_entry(task, &list, list)
 864                 task__print_level(task, fp, 0);
 865
 866         free(tasks);
 867         return 0;
 868 }
 869
 870 static int __cmd_report(struct report *rep)
 871 {
 872         int ret;
 873         struct perf_session *session = rep->session;
 874         struct evsel *pos;
 875         struct perf_data *data = session->data;
 876
 877         signal(SIGINT, sig_handler);
 878
 879         if (rep->cpu_list) {
 880                 ret = perf_session__cpu_bitmap(session, rep->cpu_list,
 881                                                rep->cpu_bitmap);
 882                 if (ret) {
 883                         ui__error("failed to set cpu bitmap\n");
 884                         return ret;
 885                 }
 886                 session->itrace_synth_opts->cpu_bitmap = rep->cpu_bitmap;
 887         }
 888
 889         if (rep->show_threads) {
 890                 ret = perf_read_values_init(&rep->show_threads_values);
 891                 if (ret)
 892                         return ret;
 893         }
 894
 895         ret = report__setup_sample_type(rep);
 896         if (ret) {
 897                 /* report__setup_sample_type() already showed error message */
 898                 return ret;
 899         }
 900
 901         if (rep->stats_mode)
 902                 stats_setup(rep);
 903
 904         if (rep->tasks_mode)
 905                 tasks_setup(rep);
 906
 907         ret = perf_session__process_events(session);
 908         if (ret) {
 909                 ui__error("failed to process sample\n");
 910                 return ret;
 911         }
 912
 913         if (rep->stats_mode)
 914                 return stats_print(rep);
 915
 916         if (rep->tasks_mode)
 917                 return tasks_print(rep, stdout);
 918
 919         report__warn_kptr_restrict(rep);
 920
 921         evlist__for_each_entry(session->evlist, pos)
 922                 rep->nr_entries += evsel__hists(pos)->nr_entries;
 923
 924         if (use_browser == 0) {
 925                 if (verbose > 3)
 926                         perf_session__fprintf(session, stdout);
 927
 928                 if (verbose > 2)
 929                         perf_session__fprintf_dsos(session, stdout);
 930
 931                 if (dump_trace) {
 932                         perf_session__fprintf_nr_events(session, stdout);
 933                         evlist__fprintf_nr_events(session->evlist, stdout);
 934                         return 0;
 935                 }
 936         }
 937
 938         ret = report__collapse_hists(rep);
 939         if (ret) {
 940                 ui__error("failed to process hist entry\n");
 941                 return ret;
 942         }
 943
 944         if (session_done())
 945                 return 0;
 946
 947         /*
 948          * recalculate number of entries after collapsing since it
 949          * might be changed during the collapse phase.
 950          */
 951         rep->nr_entries = 0;
 952         evlist__for_each_entry(session->evlist, pos)
 953                 rep->nr_entries += evsel__hists(pos)->nr_entries;
 954
 955         if (rep->nr_entries == 0) {
 956                 ui__error("The %s data has no samples!\n", data->path);
 957                 return 0;
 958         }
 959
 960         report__output_resort(rep);
 961
 962         if (rep->total_cycles_mode) {
 963                 int block_hpps[6] = {
 964                         PERF_HPP_REPORT__BLOCK_TOTAL_CYCLES_PCT,
 965                         PERF_HPP_REPORT__BLOCK_LBR_CYCLES,
 966                         PERF_HPP_REPORT__BLOCK_CYCLES_PCT,
 967                         PERF_HPP_REPORT__BLOCK_AVG_CYCLES,
 968                         PERF_HPP_REPORT__BLOCK_RANGE,
 969                         PERF_HPP_REPORT__BLOCK_DSO,
 970                 };
 971
 972                 rep->block_reports = block_info__create_report(session->evlist,
 973                                                                rep->total_cycles,
 974                                                                block_hpps, 6,
 975                                                                &rep->nr_block_reports);
 976                 if (!rep->block_reports)
 977                         return -1;
 978         }
 979
 980         return report__browse_hists(rep);
 981 }
 982
 983 static int
 984 report_parse_callchain_opt(const struct option *opt, const char *arg, int unset)
 985 {
 986         struct callchain_param *callchain = opt->value;
 987
 988         callchain->enabled = !unset;
 989         /*
 990          * --no-call-graph
 991          */
 992         if (unset) {
 993                 symbol_conf.use_callchain = false;
 994                 callchain->mode = CHAIN_NONE;
 995                 return 0;
 996         }
 997
 998         return parse_callchain_report_opt(arg);
 999 }
1000
1001 static int
1002 parse_time_quantum(const struct option *opt, const char *arg,
1003                    int unset __maybe_unused)
1004 {
1005         unsigned long *time_q = opt->value;
1006         char *end;
1007
1008         *time_q = strtoul(arg, &end, 0);
1009         if (end == arg)
1010                 goto parse_err;
1011         if (*time_q == 0) {
1012                 pr_err("time quantum cannot be 0");
1013                 return -1;
1014         }
1015         end = skip_spaces(end);
1016         if (*end == 0)
1017                 return 0;
1018         if (!strcmp(end, "s")) {
1019                 *time_q *= NSEC_PER_SEC;
1020                 return 0;
1021         }
1022         if (!strcmp(end, "ms")) {
1023                 *time_q *= NSEC_PER_MSEC;
1024                 return 0;
1025         }
1026         if (!strcmp(end, "us")) {
1027                 *time_q *= NSEC_PER_USEC;
1028                 return 0;
1029         }
1030         if (!strcmp(end, "ns"))
1031                 return 0;
1032 parse_err:
1033         pr_err("Cannot parse time quantum `%s'\n", arg);
1034         return -1;
1035 }
1036
1037 int
1038 report_parse_ignore_callees_opt(const struct option *opt __maybe_unused,
1039                                 const char *arg, int unset __maybe_unused)
1040 {
1041         if (arg) {
1042                 int err = regcomp(&ignore_callees_regex, arg, REG_EXTENDED);
1043                 if (err) {
1044                         char buf[BUFSIZ];
1045                         regerror(err, &ignore_callees_regex, buf, sizeof(buf));
1046                         pr_err("Invalid --ignore-callees regex: %s\n%s", arg, buf);
1047                         return -1;
1048                 }
1049                 have_ignore_callees = 1;
1050         }
1051
1052         return 0;
1053 }
1054
1055 static int
1056 parse_branch_mode(const struct option *opt,
1057                   const char *str __maybe_unused, int unset)
1058 {
1059         int *branch_mode = opt->value;
1060
1061         *branch_mode = !unset;
1062         return 0;
1063 }
1064
1065 static int
1066 parse_percent_limit(const struct option *opt, const char *str,
1067                     int unset __maybe_unused)
1068 {
1069         struct report *rep = opt->value;
1070         double pcnt = strtof(str, NULL);
1071
1072         rep->min_percent = pcnt;
1073         callchain_param.min_percent = pcnt;
1074         return 0;
1075 }
1076
1077 static int process_attr(struct perf_tool *tool __maybe_unused,
1078                         union perf_event *event,
1079                         struct evlist **pevlist)
1080 {
1081         u64 sample_type;
1082         int err;
1083
1084         err = perf_event__process_attr(tool, event, pevlist);
1085         if (err)
1086                 return err;
1087
1088         /*
1089          * Check if we need to enable callchains based
1090          * on events sample_type.
1091          */
1092         sample_type = evlist__combined_sample_type(*pevlist);
1093         callchain_param_setup(sample_type);
1094         return 0;
1095 }
1096
1097 int cmd_report(int argc, const char **argv)
1098 {
1099         struct perf_session *session;
1100         struct itrace_synth_opts itrace_synth_opts = { .set = 0, };
1101         struct stat st;
1102         bool has_br_stack = false;
1103         int branch_mode = -1;
1104         int last_key = 0;
1105         bool branch_call_mode = false;
1106 #define CALLCHAIN_DEFAULT_OPT  "graph,0.5,caller,function,percent"
1107         static const char report_callchain_help[] = "Display call graph (stack chain/backtrace):\n\n"
1108                                                     CALLCHAIN_REPORT_HELP
1109                                                     "\n\t\t\t\tDefault: " CALLCHAIN_DEFAULT_OPT;
1110         char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT;
1111         const char * const report_usage[] = {
1112                 "perf report [<options>]",
1113                 NULL
1114         };
1115         struct report report = {
1116                 .tool = {
1117                         .sample          = process_sample_event,
1118                         .mmap            = perf_event__process_mmap,
1119                         .mmap2           = perf_event__process_mmap2,
1120                         .comm            = perf_event__process_comm,
1121                         .namespaces      = perf_event__process_namespaces,
1122                         .cgroup          = perf_event__process_cgroup,
1123                         .exit            = perf_event__process_exit,
1124                         .fork            = perf_event__process_fork,
1125                         .lost            = perf_event__process_lost,
1126                         .read            = process_read_event,
1127                         .attr            = process_attr,
1128                         .tracing_data    = perf_event__process_tracing_data,
1129                         .build_id        = perf_event__process_build_id,
1130                         .id_index        = perf_event__process_id_index,
1131                         .auxtrace_info   = perf_event__process_auxtrace_info,
1132                         .auxtrace        = perf_event__process_auxtrace,
1133                         .event_update    = perf_event__process_event_update,
1134                         .feature         = process_feature_event,
1135                         .ordered_events  = true,
1136                         .ordering_requires_timestamps = true,
1137                 },
1138                 .max_stack               = PERF_MAX_STACK_DEPTH,
1139                 .pretty_printing_style   = "normal",
1140                 .socket_filter           = -1,
1141                 .annotation_opts         = annotation__default_options,
1142         };
1143         const struct option options[] = {
1144         OPT_STRING('i', "input", &input_name, "file",
1145                     "input file name"),
1146         OPT_INCR('v', "verbose", &verbose,
1147                     "be more verbose (show symbol address, etc)"),
1148         OPT_BOOLEAN('q', "quiet", &quiet, "Do not show any message"),
1149         OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
1150                     "dump raw trace in ASCII"),
1151         OPT_BOOLEAN(0, "stats", &report.stats_mode, "Display event stats"),
1152         OPT_BOOLEAN(0, "tasks", &report.tasks_mode, "Display recorded tasks"),
1153         OPT_BOOLEAN(0, "mmaps", &report.mmaps_mode, "Display recorded tasks memory maps"),
1154         OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
1155                    "file", "vmlinux pathname"),
1156         OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux,
1157                     "don't load vmlinux even if found"),
1158         OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
1159                    "file", "kallsyms pathname"),
1160         OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"),
1161         OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
1162                     "load module symbols - WARNING: use only with -k and LIVE kernel"),
1163         OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
1164                     "Show a column with the number of samples"),
1165         OPT_BOOLEAN('T', "threads", &report.show_threads,
1166                     "Show per-thread event counters"),
1167         OPT_STRING(0, "pretty", &report.pretty_printing_style, "key",
1168                    "pretty printing style key: normal raw"),
1169         OPT_BOOLEAN(0, "tui", &report.use_tui, "Use the TUI interface"),
1170         OPT_BOOLEAN(0, "gtk", &report.use_gtk, "Use the GTK2 interface"),
1171         OPT_BOOLEAN(0, "stdio", &report.use_stdio,
1172                     "Use the stdio interface"),
1173         OPT_BOOLEAN(0, "header", &report.header, "Show data header."),
1174         OPT_BOOLEAN(0, "header-only", &report.header_only,
1175                     "Show only data header."),
1176         OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
1177                    sort_help("sort by key(s):")),
1178         OPT_STRING('F', "fields", &field_order, "key[,keys...]",
1179                    sort_help("output field(s): overhead period sample ")),
1180         OPT_BOOLEAN(0, "show-cpu-utilization", &symbol_conf.show_cpu_utilization,
1181                     "Show sample percentage for different cpu modes"),
1182         OPT_BOOLEAN_FLAG(0, "showcpuutilization", &symbol_conf.show_cpu_utilization,
1183                     "Show sample percentage for different cpu modes", PARSE_OPT_HIDDEN),
1184         OPT_STRING('p', "parent", &parent_pattern, "regex",
1185                    "regex filter to identify parent, see: '--sort parent'"),
1186         OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other,
1187                     "Only display entries with parent-match"),
1188         OPT_CALLBACK_DEFAULT('g', "call-graph", &callchain_param,
1189                              "print_type,threshold[,print_limit],order,sort_key[,branch],value",
1190                              report_callchain_help, &report_parse_callchain_opt,
1191                              callchain_default_opt),
1192         OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain,
1193                     "Accumulate callchains of children and show total overhead as well. "
1194                     "Enabled by default, use --no-children to disable."),
1195         OPT_INTEGER(0, "max-stack", &report.max_stack,
1196                     "Set the maximum stack depth when parsing the callchain, "
1197                     "anything beyond the specified depth will be ignored. "
1198                     "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)),
1199         OPT_BOOLEAN('G', "inverted", &report.inverted_callchain,
1200                     "alias for inverted call graph"),
1201         OPT_CALLBACK(0, "ignore-callees", NULL, "regex",
1202                    "ignore callees of these functions in call graphs",
1203                    report_parse_ignore_callees_opt),
1204         OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
1205                    "only consider symbols in these dsos"),
1206         OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
1207                    "only consider symbols in these comms"),
1208         OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]",
1209                    "only consider symbols in these pids"),
1210         OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]",
1211                    "only consider symbols in these tids"),
1212         OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
1213                    "only consider these symbols"),
1214         OPT_STRING(0, "symbol-filter", &report.symbol_filter_str, "filter",
1215                    "only show symbols that (partially) match with this filter"),
1216         OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str,
1217                    "width[,width...]",
1218                    "don't try to adjust column width, use these fixed values"),
1219         OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf.field_sep, "separator",
1220                    "separator for columns, no spaces will be added between "
1221                    "columns '.' is reserved."),
1222         OPT_BOOLEAN('U', "hide-unresolved", &symbol_conf.hide_unresolved,
1223                     "Only display entries resolved to a symbol"),
1224         OPT_CALLBACK(0, "symfs", NULL, "directory",
1225                      "Look for files with symbols relative to this directory",
1226                      symbol__config_symfs),
1227         OPT_STRING('C', "cpu", &report.cpu_list, "cpu",
1228                    "list of cpus to profile"),
1229         OPT_BOOLEAN('I', "show-info", &report.show_full_info,
1230                     "Display extended information about perf.data file"),
1231         OPT_BOOLEAN(0, "source", &report.annotation_opts.annotate_src,
1232                     "Interleave source code with assembly code (default)"),
1233         OPT_BOOLEAN(0, "asm-raw", &report.annotation_opts.show_asm_raw,
1234                     "Display raw encoding of assembly instructions (default)"),
1235         OPT_STRING('M', "disassembler-style", &report.annotation_opts.disassembler_style, "disassembler style",
1236                    "Specify disassembler style (e.g. -M intel for intel syntax)"),
1237         OPT_STRING(0, "prefix", &report.annotation_opts.prefix, "prefix",
1238                     "Add prefix to source file path names in programs (with --prefix-strip)"),
1239         OPT_STRING(0, "prefix-strip", &report.annotation_opts.prefix_strip, "N",
1240                     "Strip first N entries of source file path name in programs (with --prefix)"),
1241         OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,
1242                     "Show a column with the sum of periods"),
1243         OPT_BOOLEAN_SET(0, "group", &symbol_conf.event_group, &report.group_set,
1244                     "Show event group information together"),
1245         OPT_INTEGER(0, "group-sort-idx", &symbol_conf.group_sort_idx,
1246                     "Sort the output by the event at the index n in group. "
1247                     "If n is invalid, sort by the first event. "
1248                     "WARNING: should be used on grouped events."),
1249         OPT_CALLBACK_NOOPT('b', "branch-stack", &branch_mode, "",
1250                     "use branch records for per branch histogram filling",
1251                     parse_branch_mode),
1252         OPT_BOOLEAN(0, "branch-history", &branch_call_mode,
1253                     "add last branch records to call history"),
1254         OPT_STRING(0, "objdump", &report.annotation_opts.objdump_path, "path",
1255                    "objdump binary to use for disassembly and annotations"),
1256         OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
1257                     "Disable symbol demangling"),
1258         OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel,
1259                     "Enable kernel symbol demangling"),
1260         OPT_BOOLEAN(0, "mem-mode", &report.mem_mode, "mem access profile"),
1261         OPT_INTEGER(0, "samples", &symbol_conf.res_sample,
1262                     "Number of samples to save per histogram entry for individual browsing"),
1263         OPT_CALLBACK(0, "percent-limit", &report, "percent",
1264                      "Don't show entries under that percent", parse_percent_limit),
1265         OPT_CALLBACK(0, "percentage", NULL, "relative|absolute",
1266                      "how to display percentage of filtered entries", parse_filter_percentage),
1267         OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts",
1268                             "Instruction Tracing options\n" ITRACE_HELP,
1269                             itrace_parse_synth_opts),
1270         OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename,
1271                         "Show full source file name path for source lines"),
1272         OPT_BOOLEAN(0, "show-ref-call-graph", &symbol_conf.show_ref_callgraph,
1273                     "Show callgraph from reference event"),
1274         OPT_BOOLEAN(0, "stitch-lbr", &report.stitch_lbr,
1275                     "Enable LBR callgraph stitching approach"),
1276         OPT_INTEGER(0, "socket-filter", &report.socket_filter,
1277                     "only show processor socket that match with this filter"),
1278         OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace,
1279                     "Show raw trace event output (do not use print fmt or plugins)"),
1280         OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy,
1281                     "Show entries in a hierarchy"),
1282         OPT_CALLBACK_DEFAULT(0, "stdio-color", NULL, "mode",
1283                              "'always' (default), 'never' or 'auto' only applicable to --stdio mode",
1284                              stdio__config_color, "always"),
1285         OPT_STRING(0, "time", &report.time_str, "str",
1286                    "Time span of interest (start,stop)"),
1287         OPT_BOOLEAN(0, "inline", &symbol_conf.inline_name,
1288                     "Show inline function"),
1289         OPT_CALLBACK(0, "percent-type", &report.annotation_opts, "local-period",
1290                      "Set percent type local/global-period/hits",
1291                      annotate_parse_percent_type),
1292         OPT_BOOLEAN(0, "ns", &symbol_conf.nanosecs, "Show times in nanosecs"),
1293         OPT_CALLBACK(0, "time-quantum", &symbol_conf.time_quantum, "time (ms|us|ns|s)",
1294                      "Set time quantum for time sort key (default 100ms)",
1295                      parse_time_quantum),
1296         OPTS_EVSWITCH(&report.evswitch),
1297         OPT_BOOLEAN(0, "total-cycles", &report.total_cycles_mode,
1298                     "Sort all blocks by 'Sampled Cycles%'"),
1299         OPT_END()
1300         };
1301         struct perf_data data = {
1302                 .mode  = PERF_DATA_MODE_READ,
1303         };
1304         int ret = hists__init();
1305         char sort_tmp[128];
1306
1307         if (ret < 0)
1308                 return ret;
1309
1310         ret = perf_config(report__config, &report);
1311         if (ret)
1312                 return ret;
1313
1314         argc = parse_options(argc, argv, options, report_usage, 0);
1315         if (argc) {
1316                 /*
1317                  * Special case: if there's an argument left then assume that
1318                  * it's a symbol filter:
1319                  */
1320                 if (argc > 1)
1321                         usage_with_options(report_usage, options);
1322
1323                 report.symbol_filter_str = argv[0];
1324         }
1325
1326         if (annotate_check_args(&report.annotation_opts) < 0)
1327                 return -EINVAL;
1328
1329         if (report.mmaps_mode)
1330                 report.tasks_mode = true;
1331
1332         if (dump_trace)
1333                 report.tool.ordered_events = false;
1334
1335         if (quiet)
1336                 perf_quiet_option();
1337
1338         if (symbol_conf.vmlinux_name &&
1339             access(symbol_conf.vmlinux_name, R_OK)) {
1340                 pr_err("Invalid file: %s\n", symbol_conf.vmlinux_name);
1341                 return -EINVAL;
1342         }
1343         if (symbol_conf.kallsyms_name &&
1344             access(symbol_conf.kallsyms_name, R_OK)) {
1345                 pr_err("Invalid file: %s\n", symbol_conf.kallsyms_name);
1346                 return -EINVAL;
1347         }
1348
1349         if (report.inverted_callchain)
1350                 callchain_param.order = ORDER_CALLER;
1351         if (symbol_conf.cumulate_callchain && !callchain_param.order_set)
1352                 callchain_param.order = ORDER_CALLER;
1353
1354         if ((itrace_synth_opts.callchain || itrace_synth_opts.add_callchain) &&
1355             (int)itrace_synth_opts.callchain_sz > report.max_stack)
1356                 report.max_stack = itrace_synth_opts.callchain_sz;
1357
1358         if (!input_name || !strlen(input_name)) {
1359                 if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
1360                         input_name = "-";
1361                 else
1362                         input_name = "perf.data";
1363         }
1364
1365         data.path  = input_name;
1366         data.force = symbol_conf.force;
1367
1368 repeat:
1369         session = perf_session__new(&data, false, &report.tool);
1370         if (IS_ERR(session))
1371                 return PTR_ERR(session);
1372
1373         ret = evswitch__init(&report.evswitch, session->evlist, stderr);
1374         if (ret)
1375                 return ret;
1376
1377         if (zstd_init(&(session->zstd_data), 0) < 0)
1378                 pr_warning("Decompression initialization failed. Reported data may be incomplete.\n");
1379
1380         if (report.queue_size) {
1381                 ordered_events__set_alloc_size(&session->ordered_events,
1382                                                report.queue_size);
1383         }
1384
1385         session->itrace_synth_opts = &itrace_synth_opts;
1386
1387         report.session = session;
1388
1389         has_br_stack = perf_header__has_feat(&session->header,
1390                                              HEADER_BRANCH_STACK);
1391         if (evlist__combined_sample_type(session->evlist) & PERF_SAMPLE_STACK_USER)
1392                 has_br_stack = false;
1393
1394         setup_forced_leader(&report, session->evlist);
1395
1396         if (symbol_conf.group_sort_idx && !session->evlist->nr_groups) {
1397                 parse_options_usage(NULL, options, "group-sort-idx", 0);
1398                 ret = -EINVAL;
1399                 goto error;
1400         }
1401
1402         if (itrace_synth_opts.last_branch || itrace_synth_opts.add_last_branch)
1403                 has_br_stack = true;
1404
1405         if (has_br_stack && branch_call_mode)
1406                 symbol_conf.show_branchflag_count = true;
1407
1408         memset(&report.brtype_stat, 0, sizeof(struct branch_type_stat));
1409
1410         /*
1411          * Branch mode is a tristate:
1412          * -1 means default, so decide based on the file having branch data.
1413          * 0/1 means the user chose a mode.
1414          */
1415         if (((branch_mode == -1 && has_br_stack) || branch_mode == 1) &&
1416             !branch_call_mode) {
1417                 sort__mode = SORT_MODE__BRANCH;
1418                 symbol_conf.cumulate_callchain = false;
1419         }
1420         if (branch_call_mode) {
1421                 callchain_param.key = CCKEY_ADDRESS;
1422                 callchain_param.branch_callstack = true;
1423                 symbol_conf.use_callchain = true;
1424                 callchain_register_param(&callchain_param);
1425                 if (sort_order == NULL)
1426                         sort_order = "srcline,symbol,dso";
1427         }
1428
1429         if (report.mem_mode) {
1430                 if (sort__mode == SORT_MODE__BRANCH) {
1431                         pr_err("branch and mem mode incompatible\n");
1432                         goto error;
1433                 }
1434                 sort__mode = SORT_MODE__MEMORY;
1435                 symbol_conf.cumulate_callchain = false;
1436         }
1437
1438         if (symbol_conf.report_hierarchy) {
1439                 /* disable incompatible options */
1440                 symbol_conf.cumulate_callchain = false;
1441
1442                 if (field_order) {
1443                         pr_err("Error: --hierarchy and --fields options cannot be used together\n");
1444                         parse_options_usage(report_usage, options, "F", 1);
1445                         parse_options_usage(NULL, options, "hierarchy", 0);
1446                         goto error;
1447                 }
1448
1449                 perf_hpp_list.need_collapse = true;
1450         }
1451
1452         if (report.use_stdio)
1453                 use_browser = 0;
1454         else if (report.use_tui)
1455                 use_browser = 1;
1456         else if (report.use_gtk)
1457                 use_browser = 2;
1458
1459         /* Force tty output for header output and per-thread stat. */
1460         if (report.header || report.header_only || report.show_threads)
1461                 use_browser = 0;
1462         if (report.header || report.header_only)
1463                 report.tool.show_feat_hdr = SHOW_FEAT_HEADER;
1464         if (report.show_full_info)
1465                 report.tool.show_feat_hdr = SHOW_FEAT_HEADER_FULL_INFO;
1466         if (report.stats_mode || report.tasks_mode)
1467                 use_browser = 0;
1468         if (report.stats_mode && report.tasks_mode) {
1469                 pr_err("Error: --tasks and --mmaps can't be used together with --stats\n");
1470                 goto error;
1471         }
1472
1473         if (report.total_cycles_mode) {
1474                 if (sort__mode != SORT_MODE__BRANCH)
1475                         report.total_cycles_mode = false;
1476                 else
1477                         sort_order = NULL;
1478         }
1479
1480         if (strcmp(input_name, "-") != 0)
1481                 setup_browser(true);
1482         else
1483                 use_browser = 0;
1484
1485         if (sort_order && strstr(sort_order, "ipc")) {
1486                 parse_options_usage(report_usage, options, "s", 1);
1487                 goto error;
1488         }
1489
1490         if (sort_order && strstr(sort_order, "symbol")) {
1491                 if (sort__mode == SORT_MODE__BRANCH) {
1492                         snprintf(sort_tmp, sizeof(sort_tmp), "%s,%s",
1493                                  sort_order, "ipc_lbr");
1494                         report.symbol_ipc = true;
1495                 } else {
1496                         snprintf(sort_tmp, sizeof(sort_tmp), "%s,%s",
1497                                  sort_order, "ipc_null");
1498                 }
1499
1500                 sort_order = sort_tmp;
1501         }
1502
1503         if ((last_key != K_SWITCH_INPUT_DATA && last_key != K_RELOAD) &&
1504             (setup_sorting(session->evlist) < 0)) {
1505                 if (sort_order)
1506                         parse_options_usage(report_usage, options, "s", 1);
1507                 if (field_order)
1508                         parse_options_usage(sort_order ? NULL : report_usage,
1509                                             options, "F", 1);
1510                 goto error;
1511         }
1512
1513         if ((report.header || report.header_only) && !quiet) {
1514                 perf_session__fprintf_info(session, stdout,
1515                                            report.show_full_info);
1516                 if (report.header_only) {
1517                         if (data.is_pipe) {
1518                                 /*
1519                                  * we need to process first few records
1520                                  * which contains PERF_RECORD_HEADER_FEATURE.
1521                                  */
1522                                 perf_session__process_events(session);
1523                         }
1524                         ret = 0;
1525                         goto error;
1526                 }
1527         } else if (use_browser == 0 && !quiet &&
1528                    !report.stats_mode && !report.tasks_mode) {
1529                 fputs("# To display the perf.data header info, please use --header/--header-only options.\n#\n",
1530                       stdout);
1531         }
1532
1533         /*
1534          * Only in the TUI browser we are doing integrated annotation,
1535          * so don't allocate extra space that won't be used in the stdio
1536          * implementation.
1537          */
1538         if (ui__has_annotation() || report.symbol_ipc ||
1539             report.total_cycles_mode) {
1540                 ret = symbol__annotation_init();
1541                 if (ret < 0)
1542                         goto error;
1543                 /*
1544                  * For searching by name on the "Browse map details".
1545                  * providing it only in verbose mode not to bloat too
1546                  * much struct symbol.
1547                  */
1548                 if (verbose > 0) {
1549                         /*
1550                          * XXX: Need to provide a less kludgy way to ask for
1551                          * more space per symbol, the u32 is for the index on
1552                          * the ui browser.
1553                          * See symbol__browser_index.
1554                          */
1555                         symbol_conf.priv_size += sizeof(u32);
1556                         symbol_conf.sort_by_name = true;
1557                 }
1558                 annotation_config__init(&report.annotation_opts);
1559         }
1560
1561         if (symbol__init(&session->header.env) < 0)
1562                 goto error;
1563
1564         if (report.time_str) {
1565                 ret = perf_time__parse_for_ranges(report.time_str, session,
1566                                                   &report.ptime_range,
1567                                                   &report.range_size,
1568                                                   &report.range_num);
1569                 if (ret < 0)
1570                         goto error;
1571
1572                 itrace_synth_opts__set_time_range(&itrace_synth_opts,
1573                                                   report.ptime_range,
1574                                                   report.range_num);
1575         }
1576
1577         if (session->tevent.pevent &&
1578             tep_set_function_resolver(session->tevent.pevent,
1579                                       machine__resolve_kernel_addr,
1580                                       &session->machines.host) < 0) {
1581                 pr_err("%s: failed to set libtraceevent function resolver\n",
1582                        __func__);
1583                 return -1;
1584         }
1585
1586         sort__setup_elide(stdout);
1587
1588         ret = __cmd_report(&report);
1589         if (ret == K_SWITCH_INPUT_DATA || ret == K_RELOAD) {
1590                 perf_session__delete(session);
1591                 last_key = K_SWITCH_INPUT_DATA;
1592                 goto repeat;
1593         } else
1594                 ret = 0;
1595
1596 error:
1597         if (report.ptime_range) {
1598                 itrace_synth_opts__clear_time_range(&itrace_synth_opts);
1599                 zfree(&report.ptime_range);
1600         }
1601
1602         if (report.block_reports) {
1603                 block_info__free_report(report.block_reports,
1604                                         report.nr_block_reports);
1605                 report.block_reports = NULL;
1606         }
1607
1608         zstd_fini(&(session->zstd_data));
1609         perf_session__delete(session);
1610         return ret;
1611 }