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