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 #ifdef HAVE_SLANG_SUPPORT
  75         bool                    use_tui;
  76 #endif
  77 #ifdef HAVE_GTK2_SUPPORT
  78         bool                    use_gtk;
  79 #endif
  80         bool                    use_stdio;
  81         bool                    show_full_info;
  82         bool                    show_threads;
  83         bool                    inverted_callchain;
  84         bool                    mem_mode;
  85         bool                    stats_mode;
  86         bool                    tasks_mode;
  87         bool                    mmaps_mode;
  88         bool                    header;
  89         bool                    header_only;
  90         bool                    nonany_branch_mode;
  91         bool                    group_set;
  92         bool                    stitch_lbr;
  93         bool                    disable_order;
  94         bool                    skip_empty;
  95         int                     max_stack;
  96         struct perf_read_values show_threads_values;
  97         struct annotation_options annotation_opts;
  98         const char              *pretty_printing_style;
  99         const char              *cpu_list;
 100         const char              *symbol_filter_str;
 101         const char              *time_str;
 102         struct perf_time_interval *ptime_range;
 103         int                     range_size;
 104         int                     range_num;
 105         float                   min_percent;
 106         u64                     nr_entries;
 107         u64                     queue_size;
 108         u64                     total_cycles;
 109         int                     socket_filter;
 110         DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
 111         struct branch_type_stat brtype_stat;
 112         bool                    symbol_ipc;
 113         bool                    total_cycles_mode;
 114         struct block_report     *block_reports;
 115         int                     nr_block_reports;
 116 };
 117
 118 static int report__config(const char *var, const char *value, void *cb)
 119 {
 120         struct report *rep = cb;
 121
 122         if (!strcmp(var, "report.group")) {
 123                 symbol_conf.event_group = perf_config_bool(var, value);
 124                 return 0;
 125         }
 126         if (!strcmp(var, "report.percent-limit")) {
 127                 double pcnt = strtof(value, NULL);
 128
 129                 rep->min_percent = pcnt;
 130                 callchain_param.min_percent = pcnt;
 131                 return 0;
 132         }
 133         if (!strcmp(var, "report.children")) {
 134                 symbol_conf.cumulate_callchain = perf_config_bool(var, value);
 135                 return 0;
 136         }
 137         if (!strcmp(var, "report.queue-size"))
 138                 return perf_config_u64(&rep->queue_size, var, value);
 139
 140         if (!strcmp(var, "report.sort_order")) {
 141                 default_sort_order = strdup(value);
 142                 return 0;
 143         }
 144
 145         if (!strcmp(var, "report.skip-empty")) {
 146                 rep->skip_empty = perf_config_bool(var, value);
 147                 return 0;
 148         }
 149
 150         return 0;
 151 }
 152
 153 static int hist_iter__report_callback(struct hist_entry_iter *iter,
 154                                       struct addr_location *al, bool single,
 155                                       void *arg)
 156 {
 157         int err = 0;
 158         struct report *rep = arg;
 159         struct hist_entry *he = iter->he;
 160         struct evsel *evsel = iter->evsel;
 161         struct perf_sample *sample = iter->sample;
 162         struct mem_info *mi;
 163         struct branch_info *bi;
 164
 165         if (!ui__has_annotation() && !rep->symbol_ipc)
 166                 return 0;
 167
 168         if (sort__mode == SORT_MODE__BRANCH) {
 169                 bi = he->branch_info;
 170                 err = addr_map_symbol__inc_samples(&bi->from, sample, evsel);
 171                 if (err)
 172                         goto out;
 173
 174                 err = addr_map_symbol__inc_samples(&bi->to, sample, evsel);
 175
 176         } else if (rep->mem_mode) {
 177                 mi = he->mem_info;
 178                 err = addr_map_symbol__inc_samples(&mi->daddr, sample, evsel);
 179                 if (err)
 180                         goto out;
 181
 182                 err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr);
 183
 184         } else if (symbol_conf.cumulate_callchain) {
 185                 if (single)
 186                         err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr);
 187         } else {
 188                 err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr);
 189         }
 190
 191 out:
 192         return err;
 193 }
 194
 195 static int hist_iter__branch_callback(struct hist_entry_iter *iter,
 196                                       struct addr_location *al __maybe_unused,
 197                                       bool single __maybe_unused,
 198                                       void *arg)
 199 {
 200         struct hist_entry *he = iter->he;
 201         struct report *rep = arg;
 202         struct branch_info *bi = he->branch_info;
 203         struct perf_sample *sample = iter->sample;
 204         struct evsel *evsel = iter->evsel;
 205         int err;
 206
 207         branch_type_count(&rep->brtype_stat, &bi->flags,
 208                           bi->from.addr, bi->to.addr);
 209
 210         if (!ui__has_annotation() && !rep->symbol_ipc)
 211                 return 0;
 212
 213         err = addr_map_symbol__inc_samples(&bi->from, sample, evsel);
 214         if (err)
 215                 goto out;
 216
 217         err = addr_map_symbol__inc_samples(&bi->to, sample, evsel);
 218
 219 out:
 220         return err;
 221 }
 222
 223 static void setup_forced_leader(struct report *report,
 224                                 struct evlist *evlist)
 225 {
 226         if (report->group_set)
 227                 evlist__force_leader(evlist);
 228 }
 229
 230 static int process_feature_event(struct perf_session *session,
 231                                  union perf_event *event)
 232 {
 233         struct report *rep = container_of(session->tool, struct report, tool);
 234
 235         if (event->feat.feat_id < HEADER_LAST_FEATURE)
 236                 return perf_event__process_feature(session, event);
 237
 238         if (event->feat.feat_id != HEADER_LAST_FEATURE) {
 239                 pr_err("failed: wrong feature ID: %" PRI_lu64 "\n",
 240                        event->feat.feat_id);
 241                 return -1;
 242         } else if (rep->header_only) {
 243                 session_done = 1;
 244         }
 245
 246         /*
 247          * (feat_id = HEADER_LAST_FEATURE) is the end marker which
 248          * means all features are received, now we can force the
 249          * group if needed.
 250          */
 251         setup_forced_leader(rep, session->evlist);
 252         return 0;
 253 }
 254
 255 static int process_sample_event(struct perf_tool *tool,
 256                                 union perf_event *event,
 257                                 struct perf_sample *sample,
 258                                 struct evsel *evsel,
 259                                 struct machine *machine)
 260 {
 261         struct report *rep = container_of(tool, struct report, tool);
 262         struct addr_location al;
 263         struct hist_entry_iter iter = {
 264                 .evsel                  = evsel,
 265                 .sample                 = sample,
 266                 .hide_unresolved        = symbol_conf.hide_unresolved,
 267                 .add_entry_cb           = hist_iter__report_callback,
 268         };
 269         int ret = 0;
 270
 271         if (perf_time__ranges_skip_sample(rep->ptime_range, rep->range_num,
 272                                           sample->time)) {
 273                 return 0;
 274         }
 275
 276         if (evswitch__discard(&rep->evswitch, evsel))
 277                 return 0;
 278
 279         if (machine__resolve(machine, &al, sample) < 0) {
 280                 pr_debug("problem processing %d event, skipping it.\n",
 281                          event->header.type);
 282                 return -1;
 283         }
 284
 285         if (rep->stitch_lbr)
 286                 al.thread->lbr_stitch_enable = true;
 287
 288         if (symbol_conf.hide_unresolved && al.sym == NULL)
 289                 goto out_put;
 290
 291         if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap))
 292                 goto out_put;
 293
 294         if (sort__mode == SORT_MODE__BRANCH) {
 295                 /*
 296                  * A non-synthesized event might not have a branch stack if
 297                  * branch stacks have been synthesized (using itrace options).
 298                  */
 299                 if (!sample->branch_stack)
 300                         goto out_put;
 301
 302                 iter.add_entry_cb = hist_iter__branch_callback;
 303                 iter.ops = &hist_iter_branch;
 304         } else if (rep->mem_mode) {
 305                 iter.ops = &hist_iter_mem;
 306         } else if (symbol_conf.cumulate_callchain) {
 307                 iter.ops = &hist_iter_cumulative;
 308         } else {
 309                 iter.ops = &hist_iter_normal;
 310         }
 311
 312         if (al.map != NULL)
 313                 al.map->dso->hit = 1;
 314
 315         if (ui__has_annotation() || rep->symbol_ipc || rep->total_cycles_mode) {
 316                 hist__account_cycles(sample->branch_stack, &al, sample,
 317                                      rep->nonany_branch_mode,
 318                                      &rep->total_cycles);
 319         }
 320
 321         ret = hist_entry_iter__add(&iter, &al, rep->max_stack, rep);
 322         if (ret < 0)
 323                 pr_debug("problem adding hist entry, skipping event\n");
 324 out_put:
 325         addr_location__put(&al);
 326         return ret;
 327 }
 328
 329 static int process_read_event(struct perf_tool *tool,
 330                               union perf_event *event,
 331                               struct perf_sample *sample __maybe_unused,
 332                               struct evsel *evsel,
 333                               struct machine *machine __maybe_unused)
 334 {
 335         struct report *rep = container_of(tool, struct report, tool);
 336
 337         if (rep->show_threads) {
 338                 const char *name = evsel__name(evsel);
 339                 int err = perf_read_values_add_value(&rep->show_threads_values,
 340                                            event->read.pid, event->read.tid,
 341                                            evsel->core.idx,
 342                                            name,
 343                                            event->read.value);
 344
 345                 if (err)
 346                         return err;
 347         }
 348
 349         return 0;
 350 }
 351
 352 /* For pipe mode, sample_type is not currently set */
 353 static int report__setup_sample_type(struct report *rep)
 354 {
 355         struct perf_session *session = rep->session;
 356         u64 sample_type = evlist__combined_sample_type(session->evlist);
 357         bool is_pipe = perf_data__is_pipe(session->data);
 358         struct evsel *evsel;
 359
 360         if (session->itrace_synth_opts->callchain ||
 361             session->itrace_synth_opts->add_callchain ||
 362             (!is_pipe &&
 363              perf_header__has_feat(&session->header, HEADER_AUXTRACE) &&
 364              !session->itrace_synth_opts->set))
 365                 sample_type |= PERF_SAMPLE_CALLCHAIN;
 366
 367         if (session->itrace_synth_opts->last_branch ||
 368             session->itrace_synth_opts->add_last_branch)
 369                 sample_type |= PERF_SAMPLE_BRANCH_STACK;
 370
 371         if (!is_pipe && !(sample_type & PERF_SAMPLE_CALLCHAIN)) {
 372                 if (perf_hpp_list.parent) {
 373                         ui__error("Selected --sort parent, but no "
 374                                     "callchain data. Did you call "
 375                                     "'perf record' without -g?\n");
 376                         return -EINVAL;
 377                 }
 378                 if (symbol_conf.use_callchain &&
 379                         !symbol_conf.show_branchflag_count) {
 380                         ui__error("Selected -g or --branch-history.\n"
 381                                   "But no callchain or branch data.\n"
 382                                   "Did you call 'perf record' without -g or -b?\n");
 383                         return -1;
 384                 }
 385         } else if (!callchain_param.enabled &&
 386                    callchain_param.mode != CHAIN_NONE &&
 387                    !symbol_conf.use_callchain) {
 388                         symbol_conf.use_callchain = true;
 389                         if (callchain_register_param(&callchain_param) < 0) {
 390                                 ui__error("Can't register callchain params.\n");
 391                                 return -EINVAL;
 392                         }
 393         }
 394
 395         if (symbol_conf.cumulate_callchain) {
 396                 /* Silently ignore if callchain is missing */
 397                 if (!(sample_type & PERF_SAMPLE_CALLCHAIN)) {
 398                         symbol_conf.cumulate_callchain = false;
 399                         perf_hpp__cancel_cumulate();
 400                 }
 401         }
 402
 403         if (sort__mode == SORT_MODE__BRANCH) {
 404                 if (!is_pipe &&
 405                     !(sample_type & PERF_SAMPLE_BRANCH_STACK)) {
 406                         ui__error("Selected -b but no branch data. "
 407                                   "Did you call perf record without -b?\n");
 408                         return -1;
 409                 }
 410         }
 411
 412         if (sort__mode == SORT_MODE__MEMORY) {
 413                 /*
 414                  * FIXUP: prior to kernel 5.18, Arm SPE missed to set
 415                  * PERF_SAMPLE_DATA_SRC bit in sample type.  For backward
 416                  * compatibility, set the bit if it's an old perf data file.
 417                  */
 418                 evlist__for_each_entry(session->evlist, evsel) {
 419                         if (strstr(evsel->name, "arm_spe") &&
 420                                 !(sample_type & PERF_SAMPLE_DATA_SRC)) {
 421                                 evsel->core.attr.sample_type |= PERF_SAMPLE_DATA_SRC;
 422                                 sample_type |= PERF_SAMPLE_DATA_SRC;
 423                         }
 424                 }
 425
 426                 if (!is_pipe && !(sample_type & PERF_SAMPLE_DATA_SRC)) {
 427                         ui__error("Selected --mem-mode but no mem data. "
 428                                   "Did you call perf record without -d?\n");
 429                         return -1;
 430                 }
 431         }
 432
 433         callchain_param_setup(sample_type, perf_env__arch(&rep->session->header.env));
 434
 435         if (rep->stitch_lbr && (callchain_param.record_mode != CALLCHAIN_LBR)) {
 436                 ui__warning("Can't find LBR callchain. Switch off --stitch-lbr.\n"
 437                             "Please apply --call-graph lbr when recording.\n");
 438                 rep->stitch_lbr = false;
 439         }
 440
 441         /* ??? handle more cases than just ANY? */
 442         if (!(evlist__combined_branch_type(session->evlist) & PERF_SAMPLE_BRANCH_ANY))
 443                 rep->nonany_branch_mode = true;
 444
 445 #if !defined(HAVE_LIBUNWIND_SUPPORT) && !defined(HAVE_DWARF_SUPPORT)
 446         if (dwarf_callchain_users) {
 447                 ui__warning("Please install libunwind or libdw "
 448                             "development packages during the perf build.\n");
 449         }
 450 #endif
 451
 452         return 0;
 453 }
 454
 455 static void sig_handler(int sig __maybe_unused)
 456 {
 457         session_done = 1;
 458 }
 459
 460 static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report *rep,
 461                                               const char *evname, FILE *fp)
 462 {
 463         size_t ret;
 464         char unit;
 465         unsigned long nr_samples = hists->stats.nr_samples;
 466         u64 nr_events = hists->stats.total_period;
 467         struct evsel *evsel = hists_to_evsel(hists);
 468         char buf[512];
 469         size_t size = sizeof(buf);
 470         int socked_id = hists->socket_filter;
 471
 472         if (quiet)
 473                 return 0;
 474
 475         if (symbol_conf.filter_relative) {
 476                 nr_samples = hists->stats.nr_non_filtered_samples;
 477                 nr_events = hists->stats.total_non_filtered_period;
 478         }
 479
 480         if (evsel__is_group_event(evsel)) {
 481                 struct evsel *pos;
 482
 483                 evsel__group_desc(evsel, buf, size);
 484                 evname = buf;
 485
 486                 for_each_group_member(pos, evsel) {
 487                         const struct hists *pos_hists = evsel__hists(pos);
 488
 489                         if (symbol_conf.filter_relative) {
 490                                 nr_samples += pos_hists->stats.nr_non_filtered_samples;
 491                                 nr_events += pos_hists->stats.total_non_filtered_period;
 492                         } else {
 493                                 nr_samples += pos_hists->stats.nr_samples;
 494                                 nr_events += pos_hists->stats.total_period;
 495                         }
 496                 }
 497         }
 498
 499         nr_samples = convert_unit(nr_samples, &unit);
 500         ret = fprintf(fp, "# Samples: %lu%c", nr_samples, unit);
 501         if (evname != NULL) {
 502                 ret += fprintf(fp, " of event%s '%s'",
 503                                evsel->core.nr_members > 1 ? "s" : "", evname);
 504         }
 505
 506         if (rep->time_str)
 507                 ret += fprintf(fp, " (time slices: %s)", rep->time_str);
 508
 509         if (symbol_conf.show_ref_callgraph && evname && strstr(evname, "call-graph=no")) {
 510                 ret += fprintf(fp, ", show reference callgraph");
 511         }
 512
 513         if (rep->mem_mode) {
 514                 ret += fprintf(fp, "\n# Total weight : %" PRIu64, nr_events);
 515                 ret += fprintf(fp, "\n# Sort order   : %s", sort_order ? : default_mem_sort_order);
 516         } else
 517                 ret += fprintf(fp, "\n# Event count (approx.): %" PRIu64, nr_events);
 518
 519         if (socked_id > -1)
 520                 ret += fprintf(fp, "\n# Processor Socket: %d", socked_id);
 521
 522         return ret + fprintf(fp, "\n#\n");
 523 }
 524
 525 static int evlist__tui_block_hists_browse(struct evlist *evlist, struct report *rep)
 526 {
 527         struct evsel *pos;
 528         int i = 0, ret;
 529
 530         evlist__for_each_entry(evlist, pos) {
 531                 ret = report__browse_block_hists(&rep->block_reports[i++].hist,
 532                                                  rep->min_percent, pos,
 533                                                  &rep->session->header.env,
 534                                                  &rep->annotation_opts);
 535                 if (ret != 0)
 536                         return ret;
 537         }
 538
 539         return 0;
 540 }
 541
 542 static int evlist__tty_browse_hists(struct evlist *evlist, struct report *rep, const char *help)
 543 {
 544         struct evsel *pos;
 545         int i = 0;
 546
 547         if (!quiet) {
 548                 fprintf(stdout, "#\n# Total Lost Samples: %" PRIu64 "\n#\n",
 549                         evlist->stats.total_lost_samples);
 550         }
 551
 552         evlist__for_each_entry(evlist, pos) {
 553                 struct hists *hists = evsel__hists(pos);
 554                 const char *evname = evsel__name(pos);
 555
 556                 if (symbol_conf.event_group && !evsel__is_group_leader(pos))
 557                         continue;
 558
 559                 if (rep->skip_empty && !hists->stats.nr_samples)
 560                         continue;
 561
 562                 hists__fprintf_nr_sample_events(hists, rep, evname, stdout);
 563
 564                 if (rep->total_cycles_mode) {
 565                         report__browse_block_hists(&rep->block_reports[i++].hist,
 566                                                    rep->min_percent, pos,
 567                                                    NULL, NULL);
 568                         continue;
 569                 }
 570
 571                 hists__fprintf(hists, !quiet, 0, 0, rep->min_percent, stdout,
 572                                !(symbol_conf.use_callchain ||
 573                                  symbol_conf.show_branchflag_count));
 574                 fprintf(stdout, "\n\n");
 575         }
 576
 577         if (!quiet)
 578                 fprintf(stdout, "#\n# (%s)\n#\n", help);
 579
 580         if (rep->show_threads) {
 581                 bool style = !strcmp(rep->pretty_printing_style, "raw");
 582                 perf_read_values_display(stdout, &rep->show_threads_values,
 583                                          style);
 584                 perf_read_values_destroy(&rep->show_threads_values);
 585         }
 586
 587         if (sort__mode == SORT_MODE__BRANCH)
 588                 branch_type_stat_display(stdout, &rep->brtype_stat);
 589
 590         return 0;
 591 }
 592
 593 static void report__warn_kptr_restrict(const struct report *rep)
 594 {
 595         struct map *kernel_map = machine__kernel_map(&rep->session->machines.host);
 596         struct kmap *kernel_kmap = kernel_map ? map__kmap(kernel_map) : NULL;
 597
 598         if (evlist__exclude_kernel(rep->session->evlist))
 599                 return;
 600
 601         if (kernel_map == NULL ||
 602             (kernel_map->dso->hit &&
 603              (kernel_kmap->ref_reloc_sym == NULL ||
 604               kernel_kmap->ref_reloc_sym->addr == 0))) {
 605                 const char *desc =
 606                     "As no suitable kallsyms nor vmlinux was found, kernel samples\n"
 607                     "can't be resolved.";
 608
 609                 if (kernel_map && map__has_symbols(kernel_map)) {
 610                         desc = "If some relocation was applied (e.g. "
 611                                "kexec) symbols may be misresolved.";
 612                 }
 613
 614                 ui__warning(
 615 "Kernel address maps (/proc/{kallsyms,modules}) were restricted.\n\n"
 616 "Check /proc/sys/kernel/kptr_restrict before running 'perf record'.\n\n%s\n\n"
 617 "Samples in kernel modules can't be resolved as well.\n\n",
 618                 desc);
 619         }
 620 }
 621
 622 static int report__gtk_browse_hists(struct report *rep, const char *help)
 623 {
 624         int (*hist_browser)(struct evlist *evlist, const char *help,
 625                             struct hist_browser_timer *timer, float min_pcnt);
 626
 627         hist_browser = dlsym(perf_gtk_handle, "evlist__gtk_browse_hists");
 628
 629         if (hist_browser == NULL) {
 630                 ui__error("GTK browser not found!\n");
 631                 return -1;
 632         }
 633
 634         return hist_browser(rep->session->evlist, help, NULL, rep->min_percent);
 635 }
 636
 637 static int report__browse_hists(struct report *rep)
 638 {
 639         int ret;
 640         struct perf_session *session = rep->session;
 641         struct evlist *evlist = session->evlist;
 642         char *help = NULL, *path = NULL;
 643
 644         path = system_path(TIPDIR);
 645         if (perf_tip(&help, path) || help == NULL) {
 646                 /* fallback for people who don't install perf ;-) */
 647                 free(path);
 648                 path = system_path(DOCDIR);
 649                 if (perf_tip(&help, path) || help == NULL)
 650                         help = strdup("Cannot load tips.txt file, please install perf!");
 651         }
 652         free(path);
 653
 654         switch (use_browser) {
 655         case 1:
 656                 if (rep->total_cycles_mode) {
 657                         ret = evlist__tui_block_hists_browse(evlist, rep);
 658                         break;
 659                 }
 660
 661                 ret = evlist__tui_browse_hists(evlist, help, NULL, rep->min_percent,
 662                                                &session->header.env, true, &rep->annotation_opts);
 663                 /*
 664                  * Usually "ret" is the last pressed key, and we only
 665                  * care if the key notifies us to switch data file.
 666                  */
 667                 if (ret != K_SWITCH_INPUT_DATA && ret != K_RELOAD)
 668                         ret = 0;
 669                 break;
 670         case 2:
 671                 ret = report__gtk_browse_hists(rep, help);
 672                 break;
 673         default:
 674                 ret = evlist__tty_browse_hists(evlist, rep, help);
 675                 break;
 676         }
 677         free(help);
 678         return ret;
 679 }
 680
 681 static int report__collapse_hists(struct report *rep)
 682 {
 683         struct ui_progress prog;
 684         struct evsel *pos;
 685         int ret = 0;
 686
 687         ui_progress__init(&prog, rep->nr_entries, "Merging related events...");
 688
 689         evlist__for_each_entry(rep->session->evlist, pos) {
 690                 struct hists *hists = evsel__hists(pos);
 691
 692                 if (pos->core.idx == 0)
 693                         hists->symbol_filter_str = rep->symbol_filter_str;
 694
 695                 hists->socket_filter = rep->socket_filter;
 696
 697                 ret = hists__collapse_resort(hists, &prog);
 698                 if (ret < 0)
 699                         break;
 700
 701                 /* Non-group events are considered as leader */
 702                 if (symbol_conf.event_group && !evsel__is_group_leader(pos)) {
 703                         struct hists *leader_hists = evsel__hists(evsel__leader(pos));
 704
 705                         hists__match(leader_hists, hists);
 706                         hists__link(leader_hists, hists);
 707                 }
 708         }
 709
 710         ui_progress__finish();
 711         return ret;
 712 }
 713
 714 static int hists__resort_cb(struct hist_entry *he, void *arg)
 715 {
 716         struct report *rep = arg;
 717         struct symbol *sym = he->ms.sym;
 718
 719         if (rep->symbol_ipc && sym && !sym->annotate2) {
 720                 struct evsel *evsel = hists_to_evsel(he->hists);
 721
 722                 symbol__annotate2(&he->ms, evsel,
 723                                   &annotation__default_options, NULL);
 724         }
 725
 726         return 0;
 727 }
 728
 729 static void report__output_resort(struct report *rep)
 730 {
 731         struct ui_progress prog;
 732         struct evsel *pos;
 733
 734         ui_progress__init(&prog, rep->nr_entries, "Sorting events for output...");
 735
 736         evlist__for_each_entry(rep->session->evlist, pos) {
 737                 evsel__output_resort_cb(pos, &prog, hists__resort_cb, rep);
 738         }
 739
 740         ui_progress__finish();
 741 }
 742
 743 static int count_sample_event(struct perf_tool *tool __maybe_unused,
 744                               union perf_event *event __maybe_unused,
 745                               struct perf_sample *sample __maybe_unused,
 746                               struct evsel *evsel,
 747                               struct machine *machine __maybe_unused)
 748 {
 749         struct hists *hists = evsel__hists(evsel);
 750
 751         hists__inc_nr_events(hists);
 752         return 0;
 753 }
 754
 755 static int process_attr(struct perf_tool *tool __maybe_unused,
 756                         union perf_event *event,
 757                         struct evlist **pevlist);
 758
 759 static void stats_setup(struct report *rep)
 760 {
 761         memset(&rep->tool, 0, sizeof(rep->tool));
 762         rep->tool.attr = process_attr;
 763         rep->tool.sample = count_sample_event;
 764         rep->tool.no_warn = true;
 765 }
 766
 767 static int stats_print(struct report *rep)
 768 {
 769         struct perf_session *session = rep->session;
 770
 771         perf_session__fprintf_nr_events(session, stdout, rep->skip_empty);
 772         evlist__fprintf_nr_events(session->evlist, stdout, rep->skip_empty);
 773         return 0;
 774 }
 775
 776 static void tasks_setup(struct report *rep)
 777 {
 778         memset(&rep->tool, 0, sizeof(rep->tool));
 779         rep->tool.ordered_events = true;
 780         if (rep->mmaps_mode) {
 781                 rep->tool.mmap = perf_event__process_mmap;
 782                 rep->tool.mmap2 = perf_event__process_mmap2;
 783         }
 784         rep->tool.attr = process_attr;
 785         rep->tool.comm = perf_event__process_comm;
 786         rep->tool.exit = perf_event__process_exit;
 787         rep->tool.fork = perf_event__process_fork;
 788         rep->tool.no_warn = true;
 789 }
 790
 791 struct task {
 792         struct thread           *thread;
 793         struct list_head         list;
 794         struct list_head         children;
 795 };
 796
 797 static struct task *tasks_list(struct task *task, struct machine *machine)
 798 {
 799         struct thread *parent_thread, *thread = task->thread;
 800         struct task   *parent_task;
 801
 802         /* Already listed. */
 803         if (!list_empty(&task->list))
 804                 return NULL;
 805
 806         /* Last one in the chain. */
 807         if (thread->ppid == -1)
 808                 return task;
 809
 810         parent_thread = machine__find_thread(machine, -1, thread->ppid);
 811         if (!parent_thread)
 812                 return ERR_PTR(-ENOENT);
 813
 814         parent_task = thread__priv(parent_thread);
 815         list_add_tail(&task->list, &parent_task->children);
 816         return tasks_list(parent_task, machine);
 817 }
 818
 819 static size_t maps__fprintf_task(struct maps *maps, int indent, FILE *fp)
 820 {
 821         size_t printed = 0;
 822         struct map *map;
 823
 824         maps__for_each_entry(maps, map) {
 825                 printed += fprintf(fp, "%*s  %" PRIx64 "-%" PRIx64 " %c%c%c%c %08" PRIx64 " %" PRIu64 " %s\n",
 826                                    indent, "", map->start, map->end,
 827                                    map->prot & PROT_READ ? 'r' : '-',
 828                                    map->prot & PROT_WRITE ? 'w' : '-',
 829                                    map->prot & PROT_EXEC ? 'x' : '-',
 830                                    map->flags & MAP_SHARED ? 's' : 'p',
 831                                    map->pgoff,
 832                                    map->dso->id.ino, map->dso->name);
 833         }
 834
 835         return printed;
 836 }
 837
 838 static void task__print_level(struct task *task, FILE *fp, int level)
 839 {
 840         struct thread *thread = task->thread;
 841         struct task *child;
 842         int comm_indent = fprintf(fp, "  %8d %8d %8d |%*s",
 843                                   thread->pid_, thread->tid, thread->ppid,
 844                                   level, "");
 845
 846         fprintf(fp, "%s\n", thread__comm_str(thread));
 847
 848         maps__fprintf_task(thread->maps, comm_indent, fp);
 849
 850         if (!list_empty(&task->children)) {
 851                 list_for_each_entry(child, &task->children, list)
 852                         task__print_level(child, fp, level + 1);
 853         }
 854 }
 855
 856 static int tasks_print(struct report *rep, FILE *fp)
 857 {
 858         struct perf_session *session = rep->session;
 859         struct machine      *machine = &session->machines.host;
 860         struct task *tasks, *task;
 861         unsigned int nr = 0, itask = 0, i;
 862         struct rb_node *nd;
 863         LIST_HEAD(list);
 864
 865         /*
 866          * No locking needed while accessing machine->threads,
 867          * because --tasks is single threaded command.
 868          */
 869
 870         /* Count all the threads. */
 871         for (i = 0; i < THREADS__TABLE_SIZE; i++)
 872                 nr += machine->threads[i].nr;
 873
 874         tasks = malloc(sizeof(*tasks) * nr);
 875         if (!tasks)
 876                 return -ENOMEM;
 877
 878         for (i = 0; i < THREADS__TABLE_SIZE; i++) {
 879                 struct threads *threads = &machine->threads[i];
 880
 881                 for (nd = rb_first_cached(&threads->entries); nd;
 882                      nd = rb_next(nd)) {
 883                         task = tasks + itask++;
 884
 885                         task->thread = rb_entry(nd, struct thread, rb_node);
 886                         INIT_LIST_HEAD(&task->children);
 887                         INIT_LIST_HEAD(&task->list);
 888                         thread__set_priv(task->thread, task);
 889                 }
 890         }
 891
 892         /*
 893          * Iterate every task down to the unprocessed parent
 894          * and link all in task children list. Task with no
 895          * parent is added into 'list'.
 896          */
 897         for (itask = 0; itask < nr; itask++) {
 898                 task = tasks + itask;
 899
 900                 if (!list_empty(&task->list))
 901                         continue;
 902
 903                 task = tasks_list(task, machine);
 904                 if (IS_ERR(task)) {
 905                         pr_err("Error: failed to process tasks\n");
 906                         free(tasks);
 907                         return PTR_ERR(task);
 908                 }
 909
 910                 if (task)
 911                         list_add_tail(&task->list, &list);
 912         }
 913
 914         fprintf(fp, "# %8s %8s %8s  %s\n", "pid", "tid", "ppid", "comm");
 915
 916         list_for_each_entry(task, &list, list)
 917                 task__print_level(task, fp, 0);
 918
 919         free(tasks);
 920         return 0;
 921 }
 922
 923 static int __cmd_report(struct report *rep)
 924 {
 925         int ret;
 926         struct perf_session *session = rep->session;
 927         struct evsel *pos;
 928         struct perf_data *data = session->data;
 929
 930         signal(SIGINT, sig_handler);
 931
 932         if (rep->cpu_list) {
 933                 ret = perf_session__cpu_bitmap(session, rep->cpu_list,
 934                                                rep->cpu_bitmap);
 935                 if (ret) {
 936                         ui__error("failed to set cpu bitmap\n");
 937                         return ret;
 938                 }
 939                 session->itrace_synth_opts->cpu_bitmap = rep->cpu_bitmap;
 940         }
 941
 942         if (rep->show_threads) {
 943                 ret = perf_read_values_init(&rep->show_threads_values);
 944                 if (ret)
 945                         return ret;
 946         }
 947
 948         ret = report__setup_sample_type(rep);
 949         if (ret) {
 950                 /* report__setup_sample_type() already showed error message */
 951                 return ret;
 952         }
 953
 954         if (rep->stats_mode)
 955                 stats_setup(rep);
 956
 957         if (rep->tasks_mode)
 958                 tasks_setup(rep);
 959
 960         ret = perf_session__process_events(session);
 961         if (ret) {
 962                 ui__error("failed to process sample\n");
 963                 return ret;
 964         }
 965
 966         evlist__check_mem_load_aux(session->evlist);
 967
 968         if (rep->stats_mode)
 969                 return stats_print(rep);
 970
 971         if (rep->tasks_mode)
 972                 return tasks_print(rep, stdout);
 973
 974         report__warn_kptr_restrict(rep);
 975
 976         evlist__for_each_entry(session->evlist, pos)
 977                 rep->nr_entries += evsel__hists(pos)->nr_entries;
 978
 979         if (use_browser == 0) {
 980                 if (verbose > 3)
 981                         perf_session__fprintf(session, stdout);
 982
 983                 if (verbose > 2)
 984                         perf_session__fprintf_dsos(session, stdout);
 985
 986                 if (dump_trace) {
 987                         perf_session__fprintf_nr_events(session, stdout,
 988                                                         rep->skip_empty);
 989                         evlist__fprintf_nr_events(session->evlist, stdout,
 990                                                   rep->skip_empty);
 991                         return 0;
 992                 }
 993         }
 994
 995         ret = report__collapse_hists(rep);
 996         if (ret) {
 997                 ui__error("failed to process hist entry\n");
 998                 return ret;
 999         }
1000
1001         if (session_done())
1002                 return 0;
1003
1004         /*
1005          * recalculate number of entries after collapsing since it
1006          * might be changed during the collapse phase.
1007          */
1008         rep->nr_entries = 0;
1009         evlist__for_each_entry(session->evlist, pos)
1010                 rep->nr_entries += evsel__hists(pos)->nr_entries;
1011
1012         if (rep->nr_entries == 0) {
1013                 ui__error("The %s data has no samples!\n", data->path);
1014                 return 0;
1015         }
1016
1017         report__output_resort(rep);
1018
1019         if (rep->total_cycles_mode) {
1020                 int block_hpps[6] = {
1021                         PERF_HPP_REPORT__BLOCK_TOTAL_CYCLES_PCT,
1022                         PERF_HPP_REPORT__BLOCK_LBR_CYCLES,
1023                         PERF_HPP_REPORT__BLOCK_CYCLES_PCT,
1024                         PERF_HPP_REPORT__BLOCK_AVG_CYCLES,
1025                         PERF_HPP_REPORT__BLOCK_RANGE,
1026                         PERF_HPP_REPORT__BLOCK_DSO,
1027                 };
1028
1029                 rep->block_reports = block_info__create_report(session->evlist,
1030                                                                rep->total_cycles,
1031                                                                block_hpps, 6,
1032                                                                &rep->nr_block_reports);
1033                 if (!rep->block_reports)
1034                         return -1;
1035         }
1036
1037         return report__browse_hists(rep);
1038 }
1039
1040 static int
1041 report_parse_callchain_opt(const struct option *opt, const char *arg, int unset)
1042 {
1043         struct callchain_param *callchain = opt->value;
1044
1045         callchain->enabled = !unset;
1046         /*
1047          * --no-call-graph
1048          */
1049         if (unset) {
1050                 symbol_conf.use_callchain = false;
1051                 callchain->mode = CHAIN_NONE;
1052                 return 0;
1053         }
1054
1055         return parse_callchain_report_opt(arg);
1056 }
1057
1058 static int
1059 parse_time_quantum(const struct option *opt, const char *arg,
1060                    int unset __maybe_unused)
1061 {
1062         unsigned long *time_q = opt->value;
1063         char *end;
1064
1065         *time_q = strtoul(arg, &end, 0);
1066         if (end == arg)
1067                 goto parse_err;
1068         if (*time_q == 0) {
1069                 pr_err("time quantum cannot be 0");
1070                 return -1;
1071         }
1072         end = skip_spaces(end);
1073         if (*end == 0)
1074                 return 0;
1075         if (!strcmp(end, "s")) {
1076                 *time_q *= NSEC_PER_SEC;
1077                 return 0;
1078         }
1079         if (!strcmp(end, "ms")) {
1080                 *time_q *= NSEC_PER_MSEC;
1081                 return 0;
1082         }
1083         if (!strcmp(end, "us")) {
1084                 *time_q *= NSEC_PER_USEC;
1085                 return 0;
1086         }
1087         if (!strcmp(end, "ns"))
1088                 return 0;
1089 parse_err:
1090         pr_err("Cannot parse time quantum `%s'\n", arg);
1091         return -1;
1092 }
1093
1094 int
1095 report_parse_ignore_callees_opt(const struct option *opt __maybe_unused,
1096                                 const char *arg, int unset __maybe_unused)
1097 {
1098         if (arg) {
1099                 int err = regcomp(&ignore_callees_regex, arg, REG_EXTENDED);
1100                 if (err) {
1101                         char buf[BUFSIZ];
1102                         regerror(err, &ignore_callees_regex, buf, sizeof(buf));
1103                         pr_err("Invalid --ignore-callees regex: %s\n%s", arg, buf);
1104                         return -1;
1105                 }
1106                 have_ignore_callees = 1;
1107         }
1108
1109         return 0;
1110 }
1111
1112 static int
1113 parse_branch_mode(const struct option *opt,
1114                   const char *str __maybe_unused, int unset)
1115 {
1116         int *branch_mode = opt->value;
1117
1118         *branch_mode = !unset;
1119         return 0;
1120 }
1121
1122 static int
1123 parse_percent_limit(const struct option *opt, const char *str,
1124                     int unset __maybe_unused)
1125 {
1126         struct report *rep = opt->value;
1127         double pcnt = strtof(str, NULL);
1128
1129         rep->min_percent = pcnt;
1130         callchain_param.min_percent = pcnt;
1131         return 0;
1132 }
1133
1134 static int process_attr(struct perf_tool *tool __maybe_unused,
1135                         union perf_event *event,
1136                         struct evlist **pevlist)
1137 {
1138         u64 sample_type;
1139         int err;
1140
1141         err = perf_event__process_attr(tool, event, pevlist);
1142         if (err)
1143                 return err;
1144
1145         /*
1146          * Check if we need to enable callchains based
1147          * on events sample_type.
1148          */
1149         sample_type = evlist__combined_sample_type(*pevlist);
1150         callchain_param_setup(sample_type, perf_env__arch((*pevlist)->env));
1151         return 0;
1152 }
1153
1154 int cmd_report(int argc, const char **argv)
1155 {
1156         struct perf_session *session;
1157         struct itrace_synth_opts itrace_synth_opts = { .set = 0, };
1158         struct stat st;
1159         bool has_br_stack = false;
1160         int branch_mode = -1;
1161         int last_key = 0;
1162         bool branch_call_mode = false;
1163 #define CALLCHAIN_DEFAULT_OPT  "graph,0.5,caller,function,percent"
1164         static const char report_callchain_help[] = "Display call graph (stack chain/backtrace):\n\n"
1165                                                     CALLCHAIN_REPORT_HELP
1166                                                     "\n\t\t\t\tDefault: " CALLCHAIN_DEFAULT_OPT;
1167         char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT;
1168         const char * const report_usage[] = {
1169                 "perf report [<options>]",
1170                 NULL
1171         };
1172         struct report report = {
1173                 .tool = {
1174                         .sample          = process_sample_event,
1175                         .mmap            = perf_event__process_mmap,
1176                         .mmap2           = perf_event__process_mmap2,
1177                         .comm            = perf_event__process_comm,
1178                         .namespaces      = perf_event__process_namespaces,
1179                         .cgroup          = perf_event__process_cgroup,
1180                         .exit            = perf_event__process_exit,
1181                         .fork            = perf_event__process_fork,
1182                         .lost            = perf_event__process_lost,
1183                         .read            = process_read_event,
1184                         .attr            = process_attr,
1185                         .tracing_data    = perf_event__process_tracing_data,
1186                         .build_id        = perf_event__process_build_id,
1187                         .id_index        = perf_event__process_id_index,
1188                         .auxtrace_info   = perf_event__process_auxtrace_info,
1189                         .auxtrace        = perf_event__process_auxtrace,
1190                         .event_update    = perf_event__process_event_update,
1191                         .feature         = process_feature_event,
1192                         .ordered_events  = true,
1193                         .ordering_requires_timestamps = true,
1194                 },
1195                 .max_stack               = PERF_MAX_STACK_DEPTH,
1196                 .pretty_printing_style   = "normal",
1197                 .socket_filter           = -1,
1198                 .annotation_opts         = annotation__default_options,
1199                 .skip_empty              = true,
1200         };
1201         char *sort_order_help = sort_help("sort by key(s):");
1202         char *field_order_help = sort_help("output field(s): overhead period sample ");
1203         const struct option options[] = {
1204         OPT_STRING('i', "input", &input_name, "file",
1205                     "input file name"),
1206         OPT_INCR('v', "verbose", &verbose,
1207                     "be more verbose (show symbol address, etc)"),
1208         OPT_BOOLEAN('q', "quiet", &quiet, "Do not show any message"),
1209         OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
1210                     "dump raw trace in ASCII"),
1211         OPT_BOOLEAN(0, "stats", &report.stats_mode, "Display event stats"),
1212         OPT_BOOLEAN(0, "tasks", &report.tasks_mode, "Display recorded tasks"),
1213         OPT_BOOLEAN(0, "mmaps", &report.mmaps_mode, "Display recorded tasks memory maps"),
1214         OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
1215                    "file", "vmlinux pathname"),
1216         OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux,
1217                     "don't load vmlinux even if found"),
1218         OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
1219                    "file", "kallsyms pathname"),
1220         OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"),
1221         OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
1222                     "load module symbols - WARNING: use only with -k and LIVE kernel"),
1223         OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
1224                     "Show a column with the number of samples"),
1225         OPT_BOOLEAN('T', "threads", &report.show_threads,
1226                     "Show per-thread event counters"),
1227         OPT_STRING(0, "pretty", &report.pretty_printing_style, "key",
1228                    "pretty printing style key: normal raw"),
1229 #ifdef HAVE_SLANG_SUPPORT
1230         OPT_BOOLEAN(0, "tui", &report.use_tui, "Use the TUI interface"),
1231 #endif
1232 #ifdef HAVE_GTK2_SUPPORT
1233         OPT_BOOLEAN(0, "gtk", &report.use_gtk, "Use the GTK2 interface"),
1234 #endif
1235         OPT_BOOLEAN(0, "stdio", &report.use_stdio,
1236                     "Use the stdio interface"),
1237         OPT_BOOLEAN(0, "header", &report.header, "Show data header."),
1238         OPT_BOOLEAN(0, "header-only", &report.header_only,
1239                     "Show only data header."),
1240         OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
1241                    sort_order_help),
1242         OPT_STRING('F', "fields", &field_order, "key[,keys...]",
1243                    field_order_help),
1244         OPT_BOOLEAN(0, "show-cpu-utilization", &symbol_conf.show_cpu_utilization,
1245                     "Show sample percentage for different cpu modes"),
1246         OPT_BOOLEAN_FLAG(0, "showcpuutilization", &symbol_conf.show_cpu_utilization,
1247                     "Show sample percentage for different cpu modes", PARSE_OPT_HIDDEN),
1248         OPT_STRING('p', "parent", &parent_pattern, "regex",
1249                    "regex filter to identify parent, see: '--sort parent'"),
1250         OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other,
1251                     "Only display entries with parent-match"),
1252         OPT_CALLBACK_DEFAULT('g', "call-graph", &callchain_param,
1253                              "print_type,threshold[,print_limit],order,sort_key[,branch],value",
1254                              report_callchain_help, &report_parse_callchain_opt,
1255                              callchain_default_opt),
1256         OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain,
1257                     "Accumulate callchains of children and show total overhead as well. "
1258                     "Enabled by default, use --no-children to disable."),
1259         OPT_INTEGER(0, "max-stack", &report.max_stack,
1260                     "Set the maximum stack depth when parsing the callchain, "
1261                     "anything beyond the specified depth will be ignored. "
1262                     "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)),
1263         OPT_BOOLEAN('G', "inverted", &report.inverted_callchain,
1264                     "alias for inverted call graph"),
1265         OPT_CALLBACK(0, "ignore-callees", NULL, "regex",
1266                    "ignore callees of these functions in call graphs",
1267                    report_parse_ignore_callees_opt),
1268         OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
1269                    "only consider symbols in these dsos"),
1270         OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
1271                    "only consider symbols in these comms"),
1272         OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]",
1273                    "only consider symbols in these pids"),
1274         OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]",
1275                    "only consider symbols in these tids"),
1276         OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
1277                    "only consider these symbols"),
1278         OPT_STRING(0, "symbol-filter", &report.symbol_filter_str, "filter",
1279                    "only show symbols that (partially) match with this filter"),
1280         OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str,
1281                    "width[,width...]",
1282                    "don't try to adjust column width, use these fixed values"),
1283         OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf.field_sep, "separator",
1284                    "separator for columns, no spaces will be added between "
1285                    "columns '.' is reserved."),
1286         OPT_BOOLEAN('U', "hide-unresolved", &symbol_conf.hide_unresolved,
1287                     "Only display entries resolved to a symbol"),
1288         OPT_CALLBACK(0, "symfs", NULL, "directory",
1289                      "Look for files with symbols relative to this directory",
1290                      symbol__config_symfs),
1291         OPT_STRING('C', "cpu", &report.cpu_list, "cpu",
1292                    "list of cpus to profile"),
1293         OPT_BOOLEAN('I', "show-info", &report.show_full_info,
1294                     "Display extended information about perf.data file"),
1295         OPT_BOOLEAN(0, "source", &report.annotation_opts.annotate_src,
1296                     "Interleave source code with assembly code (default)"),
1297         OPT_BOOLEAN(0, "asm-raw", &report.annotation_opts.show_asm_raw,
1298                     "Display raw encoding of assembly instructions (default)"),
1299         OPT_STRING('M', "disassembler-style", &report.annotation_opts.disassembler_style, "disassembler style",
1300                    "Specify disassembler style (e.g. -M intel for intel syntax)"),
1301         OPT_STRING(0, "prefix", &report.annotation_opts.prefix, "prefix",
1302                     "Add prefix to source file path names in programs (with --prefix-strip)"),
1303         OPT_STRING(0, "prefix-strip", &report.annotation_opts.prefix_strip, "N",
1304                     "Strip first N entries of source file path name in programs (with --prefix)"),
1305         OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,
1306                     "Show a column with the sum of periods"),
1307         OPT_BOOLEAN_SET(0, "group", &symbol_conf.event_group, &report.group_set,
1308                     "Show event group information together"),
1309         OPT_INTEGER(0, "group-sort-idx", &symbol_conf.group_sort_idx,
1310                     "Sort the output by the event at the index n in group. "
1311                     "If n is invalid, sort by the first event. "
1312                     "WARNING: should be used on grouped events."),
1313         OPT_CALLBACK_NOOPT('b', "branch-stack", &branch_mode, "",
1314                     "use branch records for per branch histogram filling",
1315                     parse_branch_mode),
1316         OPT_BOOLEAN(0, "branch-history", &branch_call_mode,
1317                     "add last branch records to call history"),
1318         OPT_STRING(0, "objdump", &report.annotation_opts.objdump_path, "path",
1319                    "objdump binary to use for disassembly and annotations"),
1320         OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
1321                     "Disable symbol demangling"),
1322         OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel,
1323                     "Enable kernel symbol demangling"),
1324         OPT_BOOLEAN(0, "mem-mode", &report.mem_mode, "mem access profile"),
1325         OPT_INTEGER(0, "samples", &symbol_conf.res_sample,
1326                     "Number of samples to save per histogram entry for individual browsing"),
1327         OPT_CALLBACK(0, "percent-limit", &report, "percent",
1328                      "Don't show entries under that percent", parse_percent_limit),
1329         OPT_CALLBACK(0, "percentage", NULL, "relative|absolute",
1330                      "how to display percentage of filtered entries", parse_filter_percentage),
1331         OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts",
1332                             "Instruction Tracing options\n" ITRACE_HELP,
1333                             itrace_parse_synth_opts),
1334         OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename,
1335                         "Show full source file name path for source lines"),
1336         OPT_BOOLEAN(0, "show-ref-call-graph", &symbol_conf.show_ref_callgraph,
1337                     "Show callgraph from reference event"),
1338         OPT_BOOLEAN(0, "stitch-lbr", &report.stitch_lbr,
1339                     "Enable LBR callgraph stitching approach"),
1340         OPT_INTEGER(0, "socket-filter", &report.socket_filter,
1341                     "only show processor socket that match with this filter"),
1342         OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace,
1343                     "Show raw trace event output (do not use print fmt or plugins)"),
1344         OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy,
1345                     "Show entries in a hierarchy"),
1346         OPT_CALLBACK_DEFAULT(0, "stdio-color", NULL, "mode",
1347                              "'always' (default), 'never' or 'auto' only applicable to --stdio mode",
1348                              stdio__config_color, "always"),
1349         OPT_STRING(0, "time", &report.time_str, "str",
1350                    "Time span of interest (start,stop)"),
1351         OPT_BOOLEAN(0, "inline", &symbol_conf.inline_name,
1352                     "Show inline function"),
1353         OPT_CALLBACK(0, "percent-type", &report.annotation_opts, "local-period",
1354                      "Set percent type local/global-period/hits",
1355                      annotate_parse_percent_type),
1356         OPT_BOOLEAN(0, "ns", &symbol_conf.nanosecs, "Show times in nanosecs"),
1357         OPT_CALLBACK(0, "time-quantum", &symbol_conf.time_quantum, "time (ms|us|ns|s)",
1358                      "Set time quantum for time sort key (default 100ms)",
1359                      parse_time_quantum),
1360         OPTS_EVSWITCH(&report.evswitch),
1361         OPT_BOOLEAN(0, "total-cycles", &report.total_cycles_mode,
1362                     "Sort all blocks by 'Sampled Cycles%'"),
1363         OPT_BOOLEAN(0, "disable-order", &report.disable_order,
1364                     "Disable raw trace ordering"),
1365         OPT_BOOLEAN(0, "skip-empty", &report.skip_empty,
1366                     "Do not display empty (or dummy) events in the output"),
1367         OPT_END()
1368         };
1369         struct perf_data data = {
1370                 .mode  = PERF_DATA_MODE_READ,
1371         };
1372         int ret = hists__init();
1373         char sort_tmp[128];
1374
1375         if (ret < 0)
1376                 goto exit;
1377
1378         ret = perf_config(report__config, &report);
1379         if (ret)
1380                 goto exit;
1381
1382         argc = parse_options(argc, argv, options, report_usage, 0);
1383         if (argc) {
1384                 /*
1385                  * Special case: if there's an argument left then assume that
1386                  * it's a symbol filter:
1387                  */
1388                 if (argc > 1)
1389                         usage_with_options(report_usage, options);
1390
1391                 report.symbol_filter_str = argv[0];
1392         }
1393
1394         if (annotate_check_args(&report.annotation_opts) < 0) {
1395                 ret = -EINVAL;
1396                 goto exit;
1397         }
1398
1399         if (report.mmaps_mode)
1400                 report.tasks_mode = true;
1401
1402         if (dump_trace && report.disable_order)
1403                 report.tool.ordered_events = false;
1404
1405         if (quiet)
1406                 perf_quiet_option();
1407
1408         ret = symbol__validate_sym_arguments();
1409         if (ret)
1410                 goto exit;
1411
1412         if (report.inverted_callchain)
1413                 callchain_param.order = ORDER_CALLER;
1414         if (symbol_conf.cumulate_callchain && !callchain_param.order_set)
1415                 callchain_param.order = ORDER_CALLER;
1416
1417         if ((itrace_synth_opts.callchain || itrace_synth_opts.add_callchain) &&
1418             (int)itrace_synth_opts.callchain_sz > report.max_stack)
1419                 report.max_stack = itrace_synth_opts.callchain_sz;
1420
1421         if (!input_name || !strlen(input_name)) {
1422                 if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
1423                         input_name = "-";
1424                 else
1425                         input_name = "perf.data";
1426         }
1427
1428         data.path  = input_name;
1429         data.force = symbol_conf.force;
1430
1431 repeat:
1432         session = perf_session__new(&data, &report.tool);
1433         if (IS_ERR(session)) {
1434                 ret = PTR_ERR(session);
1435                 goto exit;
1436         }
1437
1438         ret = evswitch__init(&report.evswitch, session->evlist, stderr);
1439         if (ret)
1440                 goto exit;
1441
1442         if (zstd_init(&(session->zstd_data), 0) < 0)
1443                 pr_warning("Decompression initialization failed. Reported data may be incomplete.\n");
1444
1445         if (report.queue_size) {
1446                 ordered_events__set_alloc_size(&session->ordered_events,
1447                                                report.queue_size);
1448         }
1449
1450         session->itrace_synth_opts = &itrace_synth_opts;
1451
1452         report.session = session;
1453
1454         has_br_stack = perf_header__has_feat(&session->header,
1455                                              HEADER_BRANCH_STACK);
1456         if (evlist__combined_sample_type(session->evlist) & PERF_SAMPLE_STACK_USER)
1457                 has_br_stack = false;
1458
1459         setup_forced_leader(&report, session->evlist);
1460
1461         if (symbol_conf.group_sort_idx && !session->evlist->core.nr_groups) {
1462                 parse_options_usage(NULL, options, "group-sort-idx", 0);
1463                 ret = -EINVAL;
1464                 goto error;
1465         }
1466
1467         if (itrace_synth_opts.last_branch || itrace_synth_opts.add_last_branch)
1468                 has_br_stack = true;
1469
1470         if (has_br_stack && branch_call_mode)
1471                 symbol_conf.show_branchflag_count = true;
1472
1473         memset(&report.brtype_stat, 0, sizeof(struct branch_type_stat));
1474
1475         /*
1476          * Branch mode is a tristate:
1477          * -1 means default, so decide based on the file having branch data.
1478          * 0/1 means the user chose a mode.
1479          */
1480         if (((branch_mode == -1 && has_br_stack) || branch_mode == 1) &&
1481             !branch_call_mode) {
1482                 sort__mode = SORT_MODE__BRANCH;
1483                 symbol_conf.cumulate_callchain = false;
1484         }
1485         if (branch_call_mode) {
1486                 callchain_param.key = CCKEY_ADDRESS;
1487                 callchain_param.branch_callstack = true;
1488                 symbol_conf.use_callchain = true;
1489                 callchain_register_param(&callchain_param);
1490                 if (sort_order == NULL)
1491                         sort_order = "srcline,symbol,dso";
1492         }
1493
1494         if (report.mem_mode) {
1495                 if (sort__mode == SORT_MODE__BRANCH) {
1496                         pr_err("branch and mem mode incompatible\n");
1497                         goto error;
1498                 }
1499                 sort__mode = SORT_MODE__MEMORY;
1500                 symbol_conf.cumulate_callchain = false;
1501         }
1502
1503         if (symbol_conf.report_hierarchy) {
1504                 /* disable incompatible options */
1505                 symbol_conf.cumulate_callchain = false;
1506
1507                 if (field_order) {
1508                         pr_err("Error: --hierarchy and --fields options cannot be used together\n");
1509                         parse_options_usage(report_usage, options, "F", 1);
1510                         parse_options_usage(NULL, options, "hierarchy", 0);
1511                         goto error;
1512                 }
1513
1514                 perf_hpp_list.need_collapse = true;
1515         }
1516
1517         if (report.use_stdio)
1518                 use_browser = 0;
1519 #ifdef HAVE_SLANG_SUPPORT
1520         else if (report.use_tui)
1521                 use_browser = 1;
1522 #endif
1523 #ifdef HAVE_GTK2_SUPPORT
1524         else if (report.use_gtk)
1525                 use_browser = 2;
1526 #endif
1527
1528         /* Force tty output for header output and per-thread stat. */
1529         if (report.header || report.header_only || report.show_threads)
1530                 use_browser = 0;
1531         if (report.header || report.header_only)
1532                 report.tool.show_feat_hdr = SHOW_FEAT_HEADER;
1533         if (report.show_full_info)
1534                 report.tool.show_feat_hdr = SHOW_FEAT_HEADER_FULL_INFO;
1535         if (report.stats_mode || report.tasks_mode)
1536                 use_browser = 0;
1537         if (report.stats_mode && report.tasks_mode) {
1538                 pr_err("Error: --tasks and --mmaps can't be used together with --stats\n");
1539                 goto error;
1540         }
1541
1542         if (report.total_cycles_mode) {
1543                 if (sort__mode != SORT_MODE__BRANCH)
1544                         report.total_cycles_mode = false;
1545                 else
1546                         sort_order = NULL;
1547         }
1548
1549         if (strcmp(input_name, "-") != 0)
1550                 setup_browser(true);
1551         else
1552                 use_browser = 0;
1553
1554         if (sort_order && strstr(sort_order, "ipc")) {
1555                 parse_options_usage(report_usage, options, "s", 1);
1556                 goto error;
1557         }
1558
1559         if (sort_order && strstr(sort_order, "symbol")) {
1560                 if (sort__mode == SORT_MODE__BRANCH) {
1561                         snprintf(sort_tmp, sizeof(sort_tmp), "%s,%s",
1562                                  sort_order, "ipc_lbr");
1563                         report.symbol_ipc = true;
1564                 } else {
1565                         snprintf(sort_tmp, sizeof(sort_tmp), "%s,%s",
1566                                  sort_order, "ipc_null");
1567                 }
1568
1569                 sort_order = sort_tmp;
1570         }
1571
1572         if ((last_key != K_SWITCH_INPUT_DATA && last_key != K_RELOAD) &&
1573             (setup_sorting(session->evlist) < 0)) {
1574                 if (sort_order)
1575                         parse_options_usage(report_usage, options, "s", 1);
1576                 if (field_order)
1577                         parse_options_usage(sort_order ? NULL : report_usage,
1578                                             options, "F", 1);
1579                 goto error;
1580         }
1581
1582         if ((report.header || report.header_only) && !quiet) {
1583                 perf_session__fprintf_info(session, stdout,
1584                                            report.show_full_info);
1585                 if (report.header_only) {
1586                         if (data.is_pipe) {
1587                                 /*
1588                                  * we need to process first few records
1589                                  * which contains PERF_RECORD_HEADER_FEATURE.
1590                                  */
1591                                 perf_session__process_events(session);
1592                         }
1593                         ret = 0;
1594                         goto error;
1595                 }
1596         } else if (use_browser == 0 && !quiet &&
1597                    !report.stats_mode && !report.tasks_mode) {
1598                 fputs("# To display the perf.data header info, please use --header/--header-only options.\n#\n",
1599                       stdout);
1600         }
1601
1602         /*
1603          * Only in the TUI browser we are doing integrated annotation,
1604          * so don't allocate extra space that won't be used in the stdio
1605          * implementation.
1606          */
1607         if (ui__has_annotation() || report.symbol_ipc ||
1608             report.total_cycles_mode) {
1609                 ret = symbol__annotation_init();
1610                 if (ret < 0)
1611                         goto error;
1612                 /*
1613                  * For searching by name on the "Browse map details".
1614                  * providing it only in verbose mode not to bloat too
1615                  * much struct symbol.
1616                  */
1617                 if (verbose > 0) {
1618                         /*
1619                          * XXX: Need to provide a less kludgy way to ask for
1620                          * more space per symbol, the u32 is for the index on
1621                          * the ui browser.
1622                          * See symbol__browser_index.
1623                          */
1624                         symbol_conf.priv_size += sizeof(u32);
1625                         symbol_conf.sort_by_name = true;
1626                 }
1627                 annotation_config__init(&report.annotation_opts);
1628         }
1629
1630         if (symbol__init(&session->header.env) < 0)
1631                 goto error;
1632
1633         if (report.time_str) {
1634                 ret = perf_time__parse_for_ranges(report.time_str, session,
1635                                                   &report.ptime_range,
1636                                                   &report.range_size,
1637                                                   &report.range_num);
1638                 if (ret < 0)
1639                         goto error;
1640
1641                 itrace_synth_opts__set_time_range(&itrace_synth_opts,
1642                                                   report.ptime_range,
1643                                                   report.range_num);
1644         }
1645
1646         if (session->tevent.pevent &&
1647             tep_set_function_resolver(session->tevent.pevent,
1648                                       machine__resolve_kernel_addr,
1649                                       &session->machines.host) < 0) {
1650                 pr_err("%s: failed to set libtraceevent function resolver\n",
1651                        __func__);
1652                 return -1;
1653         }
1654
1655         sort__setup_elide(stdout);
1656
1657         ret = __cmd_report(&report);
1658         if (ret == K_SWITCH_INPUT_DATA || ret == K_RELOAD) {
1659                 perf_session__delete(session);
1660                 last_key = K_SWITCH_INPUT_DATA;
1661                 goto repeat;
1662         } else
1663                 ret = 0;
1664
1665 error:
1666         if (report.ptime_range) {
1667                 itrace_synth_opts__clear_time_range(&itrace_synth_opts);
1668                 zfree(&report.ptime_range);
1669         }
1670
1671         if (report.block_reports) {
1672                 block_info__free_report(report.block_reports,
1673                                         report.nr_block_reports);
1674                 report.block_reports = NULL;
1675         }
1676
1677         zstd_fini(&(session->zstd_data));
1678         perf_session__delete(session);
1679 exit:
1680         free(sort_order_help);
1681         free(field_order_help);
1682         return ret;
1683 }