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