linux/tools/perf/builtin-report.c
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   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * builtin-report.c
   4 *
   5 * Builtin report command: Analyze the perf.data input file,
   6 * look up and read DSOs and symbol information and display
   7 * a histogram of results, along various sorting keys.
   8 */
   9#include "builtin.h"
  10
  11#include "util/util.h"
  12#include "util/config.h"
  13
  14#include "util/annotate.h"
  15#include "util/color.h"
  16#include <linux/list.h>
  17#include <linux/rbtree.h>
  18#include <linux/err.h>
  19#include "util/map.h"
  20#include "util/symbol.h"
  21#include "util/callchain.h"
  22#include "util/values.h"
  23
  24#include "perf.h"
  25#include "util/debug.h"
  26#include "util/evlist.h"
  27#include "util/evsel.h"
  28#include "util/header.h"
  29#include "util/session.h"
  30#include "util/tool.h"
  31
  32#include <subcmd/parse-options.h>
  33#include <subcmd/exec-cmd.h>
  34#include "util/parse-events.h"
  35
  36#include "util/thread.h"
  37#include "util/sort.h"
  38#include "util/hist.h"
  39#include "util/data.h"
  40#include "arch/common.h"
  41#include "util/time-utils.h"
  42#include "util/auxtrace.h"
  43#include "util/units.h"
  44#include "util/branch.h"
  45
  46#include <dlfcn.h>
  47#include <errno.h>
  48#include <inttypes.h>
  49#include <regex.h>
  50#include "sane_ctype.h"
  51#include <signal.h>
  52#include <linux/bitmap.h>
  53#include <linux/stringify.h>
  54#include <linux/time64.h>
  55#include <sys/types.h>
  56#include <sys/stat.h>
  57#include <unistd.h>
  58#include <linux/mman.h>
  59
  60struct report {
  61        struct perf_tool        tool;
  62        struct perf_session     *session;
  63        bool                    use_tui, use_gtk, use_stdio;
  64        bool                    show_full_info;
  65        bool                    show_threads;
  66        bool                    inverted_callchain;
  67        bool                    mem_mode;
  68        bool                    stats_mode;
  69        bool                    tasks_mode;
  70        bool                    mmaps_mode;
  71        bool                    header;
  72        bool                    header_only;
  73        bool                    nonany_branch_mode;
  74        bool                    group_set;
  75        int                     max_stack;
  76        struct perf_read_values show_threads_values;
  77        struct annotation_options annotation_opts;
  78        const char              *pretty_printing_style;
  79        const char              *cpu_list;
  80        const char              *symbol_filter_str;
  81        const char              *time_str;
  82        struct perf_time_interval *ptime_range;
  83        int                     range_size;
  84        int                     range_num;
  85        float                   min_percent;
  86        u64                     nr_entries;
  87        u64                     queue_size;
  88        int                     socket_filter;
  89        DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
  90        struct branch_type_stat brtype_stat;
  91        bool                    symbol_ipc;
  92};
  93
  94static int report__config(const char *var, const char *value, void *cb)
  95{
  96        struct report *rep = cb;
  97
  98        if (!strcmp(var, "report.group")) {
  99                symbol_conf.event_group = perf_config_bool(var, value);
 100                return 0;
 101        }
 102        if (!strcmp(var, "report.percent-limit")) {
 103                double pcnt = strtof(value, NULL);
 104
 105                rep->min_percent = pcnt;
 106                callchain_param.min_percent = pcnt;
 107                return 0;
 108        }
 109        if (!strcmp(var, "report.children")) {
 110                symbol_conf.cumulate_callchain = perf_config_bool(var, value);
 111                return 0;
 112        }
 113        if (!strcmp(var, "report.queue-size"))
 114                return perf_config_u64(&rep->queue_size, var, value);
 115
 116        if (!strcmp(var, "report.sort_order")) {
 117                default_sort_order = strdup(value);
 118                return 0;
 119        }
 120
 121        return 0;
 122}
 123
 124static int hist_iter__report_callback(struct hist_entry_iter *iter,
 125                                      struct addr_location *al, bool single,
 126                                      void *arg)
 127{
 128        int err = 0;
 129        struct report *rep = arg;
 130        struct hist_entry *he = iter->he;
 131        struct perf_evsel *evsel = iter->evsel;
 132        struct perf_sample *sample = iter->sample;
 133        struct mem_info *mi;
 134        struct branch_info *bi;
 135
 136        if (!ui__has_annotation() && !rep->symbol_ipc)
 137                return 0;
 138
 139        if (sort__mode == SORT_MODE__BRANCH) {
 140                bi = he->branch_info;
 141                err = addr_map_symbol__inc_samples(&bi->from, sample, evsel);
 142                if (err)
 143                        goto out;
 144
 145                err = addr_map_symbol__inc_samples(&bi->to, sample, evsel);
 146
 147        } else if (rep->mem_mode) {
 148                mi = he->mem_info;
 149                err = addr_map_symbol__inc_samples(&mi->daddr, sample, evsel);
 150                if (err)
 151                        goto out;
 152
 153                err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr);
 154
 155        } else if (symbol_conf.cumulate_callchain) {
 156                if (single)
 157                        err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr);
 158        } else {
 159                err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr);
 160        }
 161
 162out:
 163        return err;
 164}
 165
 166static int hist_iter__branch_callback(struct hist_entry_iter *iter,
 167                                      struct addr_location *al __maybe_unused,
 168                                      bool single __maybe_unused,
 169                                      void *arg)
 170{
 171        struct hist_entry *he = iter->he;
 172        struct report *rep = arg;
 173        struct branch_info *bi;
 174        struct perf_sample *sample = iter->sample;
 175        struct perf_evsel *evsel = iter->evsel;
 176        int err;
 177
 178        if (!ui__has_annotation() && !rep->symbol_ipc)
 179                return 0;
 180
 181        bi = he->branch_info;
 182        err = addr_map_symbol__inc_samples(&bi->from, sample, evsel);
 183        if (err)
 184                goto out;
 185
 186        err = addr_map_symbol__inc_samples(&bi->to, sample, evsel);
 187
 188        branch_type_count(&rep->brtype_stat, &bi->flags,
 189                          bi->from.addr, bi->to.addr);
 190
 191out:
 192        return err;
 193}
 194
 195static void setup_forced_leader(struct report *report,
 196                                struct perf_evlist *evlist)
 197{
 198        if (report->group_set)
 199                perf_evlist__force_leader(evlist);
 200}
 201
 202static int process_feature_event(struct perf_session *session,
 203                                 union perf_event *event)
 204{
 205        struct report *rep = container_of(session->tool, struct report, tool);
 206
 207        if (event->feat.feat_id < HEADER_LAST_FEATURE)
 208                return perf_event__process_feature(session, event);
 209
 210        if (event->feat.feat_id != HEADER_LAST_FEATURE) {
 211                pr_err("failed: wrong feature ID: %" PRIu64 "\n",
 212                       event->feat.feat_id);
 213                return -1;
 214        }
 215
 216        /*
 217         * (feat_id = HEADER_LAST_FEATURE) is the end marker which
 218         * means all features are received, now we can force the
 219         * group if needed.
 220         */
 221        setup_forced_leader(rep, session->evlist);
 222        return 0;
 223}
 224
 225static int process_sample_event(struct perf_tool *tool,
 226                                union perf_event *event,
 227                                struct perf_sample *sample,
 228                                struct perf_evsel *evsel,
 229                                struct machine *machine)
 230{
 231        struct report *rep = container_of(tool, struct report, tool);
 232        struct addr_location al;
 233        struct hist_entry_iter iter = {
 234                .evsel                  = evsel,
 235                .sample                 = sample,
 236                .hide_unresolved        = symbol_conf.hide_unresolved,
 237                .add_entry_cb           = hist_iter__report_callback,
 238        };
 239        int ret = 0;
 240
 241        if (perf_time__ranges_skip_sample(rep->ptime_range, rep->range_num,
 242                                          sample->time)) {
 243                return 0;
 244        }
 245
 246        if (machine__resolve(machine, &al, sample) < 0) {
 247                pr_debug("problem processing %d event, skipping it.\n",
 248                         event->header.type);
 249                return -1;
 250        }
 251
 252        if (symbol_conf.hide_unresolved && al.sym == NULL)
 253                goto out_put;
 254
 255        if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap))
 256                goto out_put;
 257
 258        if (sort__mode == SORT_MODE__BRANCH) {
 259                /*
 260                 * A non-synthesized event might not have a branch stack if
 261                 * branch stacks have been synthesized (using itrace options).
 262                 */
 263                if (!sample->branch_stack)
 264                        goto out_put;
 265
 266                iter.add_entry_cb = hist_iter__branch_callback;
 267                iter.ops = &hist_iter_branch;
 268        } else if (rep->mem_mode) {
 269                iter.ops = &hist_iter_mem;
 270        } else if (symbol_conf.cumulate_callchain) {
 271                iter.ops = &hist_iter_cumulative;
 272        } else {
 273                iter.ops = &hist_iter_normal;
 274        }
 275
 276        if (al.map != NULL)
 277                al.map->dso->hit = 1;
 278
 279        if (ui__has_annotation() || rep->symbol_ipc) {
 280                hist__account_cycles(sample->branch_stack, &al, sample,
 281                                     rep->nonany_branch_mode);
 282        }
 283
 284        ret = hist_entry_iter__add(&iter, &al, rep->max_stack, rep);
 285        if (ret < 0)
 286                pr_debug("problem adding hist entry, skipping event\n");
 287out_put:
 288        addr_location__put(&al);
 289        return ret;
 290}
 291
 292static int process_read_event(struct perf_tool *tool,
 293                              union perf_event *event,
 294                              struct perf_sample *sample __maybe_unused,
 295                              struct perf_evsel *evsel,
 296                              struct machine *machine __maybe_unused)
 297{
 298        struct report *rep = container_of(tool, struct report, tool);
 299
 300        if (rep->show_threads) {
 301                const char *name = evsel ? perf_evsel__name(evsel) : "unknown";
 302                int err = perf_read_values_add_value(&rep->show_threads_values,
 303                                           event->read.pid, event->read.tid,
 304                                           evsel->idx,
 305                                           name,
 306                                           event->read.value);
 307
 308                if (err)
 309                        return err;
 310        }
 311
 312        return 0;
 313}
 314
 315/* For pipe mode, sample_type is not currently set */
 316static int report__setup_sample_type(struct report *rep)
 317{
 318        struct perf_session *session = rep->session;
 319        u64 sample_type = perf_evlist__combined_sample_type(session->evlist);
 320        bool is_pipe = perf_data__is_pipe(session->data);
 321
 322        if (session->itrace_synth_opts->callchain ||
 323            (!is_pipe &&
 324             perf_header__has_feat(&session->header, HEADER_AUXTRACE) &&
 325             !session->itrace_synth_opts->set))
 326                sample_type |= PERF_SAMPLE_CALLCHAIN;
 327
 328        if (session->itrace_synth_opts->last_branch)
 329                sample_type |= PERF_SAMPLE_BRANCH_STACK;
 330
 331        if (!is_pipe && !(sample_type & PERF_SAMPLE_CALLCHAIN)) {
 332                if (perf_hpp_list.parent) {
 333                        ui__error("Selected --sort parent, but no "
 334                                    "callchain data. Did you call "
 335                                    "'perf record' without -g?\n");
 336                        return -EINVAL;
 337                }
 338                if (symbol_conf.use_callchain &&
 339                        !symbol_conf.show_branchflag_count) {
 340                        ui__error("Selected -g or --branch-history.\n"
 341                                  "But no callchain or branch data.\n"
 342                                  "Did you call 'perf record' without -g or -b?\n");
 343                        return -1;
 344                }
 345        } else if (!callchain_param.enabled &&
 346                   callchain_param.mode != CHAIN_NONE &&
 347                   !symbol_conf.use_callchain) {
 348                        symbol_conf.use_callchain = true;
 349                        if (callchain_register_param(&callchain_param) < 0) {
 350                                ui__error("Can't register callchain params.\n");
 351                                return -EINVAL;
 352                        }
 353        }
 354
 355        if (symbol_conf.cumulate_callchain) {
 356                /* Silently ignore if callchain is missing */
 357                if (!(sample_type & PERF_SAMPLE_CALLCHAIN)) {
 358                        symbol_conf.cumulate_callchain = false;
 359                        perf_hpp__cancel_cumulate();
 360                }
 361        }
 362
 363        if (sort__mode == SORT_MODE__BRANCH) {
 364                if (!is_pipe &&
 365                    !(sample_type & PERF_SAMPLE_BRANCH_STACK)) {
 366                        ui__error("Selected -b but no branch data. "
 367                                  "Did you call perf record without -b?\n");
 368                        return -1;
 369                }
 370        }
 371
 372        if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain) {
 373                if ((sample_type & PERF_SAMPLE_REGS_USER) &&
 374                    (sample_type & PERF_SAMPLE_STACK_USER)) {
 375                        callchain_param.record_mode = CALLCHAIN_DWARF;
 376                        dwarf_callchain_users = true;
 377                } else if (sample_type & PERF_SAMPLE_BRANCH_STACK)
 378                        callchain_param.record_mode = CALLCHAIN_LBR;
 379                else
 380                        callchain_param.record_mode = CALLCHAIN_FP;
 381        }
 382
 383        /* ??? handle more cases than just ANY? */
 384        if (!(perf_evlist__combined_branch_type(session->evlist) &
 385                                PERF_SAMPLE_BRANCH_ANY))
 386                rep->nonany_branch_mode = true;
 387
 388        return 0;
 389}
 390
 391static void sig_handler(int sig __maybe_unused)
 392{
 393        session_done = 1;
 394}
 395
 396static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report *rep,
 397                                              const char *evname, FILE *fp)
 398{
 399        size_t ret;
 400        char unit;
 401        unsigned long nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE];
 402        u64 nr_events = hists->stats.total_period;
 403        struct perf_evsel *evsel = hists_to_evsel(hists);
 404        char buf[512];
 405        size_t size = sizeof(buf);
 406        int socked_id = hists->socket_filter;
 407
 408        if (quiet)
 409                return 0;
 410
 411        if (symbol_conf.filter_relative) {
 412                nr_samples = hists->stats.nr_non_filtered_samples;
 413                nr_events = hists->stats.total_non_filtered_period;
 414        }
 415
 416        if (perf_evsel__is_group_event(evsel)) {
 417                struct perf_evsel *pos;
 418
 419                perf_evsel__group_desc(evsel, buf, size);
 420                evname = buf;
 421
 422                for_each_group_member(pos, evsel) {
 423                        const struct hists *pos_hists = evsel__hists(pos);
 424
 425                        if (symbol_conf.filter_relative) {
 426                                nr_samples += pos_hists->stats.nr_non_filtered_samples;
 427                                nr_events += pos_hists->stats.total_non_filtered_period;
 428                        } else {
 429                                nr_samples += pos_hists->stats.nr_events[PERF_RECORD_SAMPLE];
 430                                nr_events += pos_hists->stats.total_period;
 431                        }
 432                }
 433        }
 434
 435        nr_samples = convert_unit(nr_samples, &unit);
 436        ret = fprintf(fp, "# Samples: %lu%c", nr_samples, unit);
 437        if (evname != NULL) {
 438                ret += fprintf(fp, " of event%s '%s'",
 439                               evsel->nr_members > 1 ? "s" : "", evname);
 440        }
 441
 442        if (rep->time_str)
 443                ret += fprintf(fp, " (time slices: %s)", rep->time_str);
 444
 445        if (symbol_conf.show_ref_callgraph &&
 446            strstr(evname, "call-graph=no")) {
 447                ret += fprintf(fp, ", show reference callgraph");
 448        }
 449
 450        if (rep->mem_mode) {
 451                ret += fprintf(fp, "\n# Total weight : %" PRIu64, nr_events);
 452                ret += fprintf(fp, "\n# Sort order   : %s", sort_order ? : default_mem_sort_order);
 453        } else
 454                ret += fprintf(fp, "\n# Event count (approx.): %" PRIu64, nr_events);
 455
 456        if (socked_id > -1)
 457                ret += fprintf(fp, "\n# Processor Socket: %d", socked_id);
 458
 459        return ret + fprintf(fp, "\n#\n");
 460}
 461
 462static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist,
 463                                         struct report *rep,
 464                                         const char *help)
 465{
 466        struct perf_evsel *pos;
 467
 468        if (!quiet) {
 469                fprintf(stdout, "#\n# Total Lost Samples: %" PRIu64 "\n#\n",
 470                        evlist->stats.total_lost_samples);
 471        }
 472
 473        evlist__for_each_entry(evlist, pos) {
 474                struct hists *hists = evsel__hists(pos);
 475                const char *evname = perf_evsel__name(pos);
 476
 477                if (symbol_conf.event_group &&
 478                    !perf_evsel__is_group_leader(pos))
 479                        continue;
 480
 481                hists__fprintf_nr_sample_events(hists, rep, evname, stdout);
 482                hists__fprintf(hists, !quiet, 0, 0, rep->min_percent, stdout,
 483                               !(symbol_conf.use_callchain ||
 484                                 symbol_conf.show_branchflag_count));
 485                fprintf(stdout, "\n\n");
 486        }
 487
 488        if (!quiet)
 489                fprintf(stdout, "#\n# (%s)\n#\n", help);
 490
 491        if (rep->show_threads) {
 492                bool style = !strcmp(rep->pretty_printing_style, "raw");
 493                perf_read_values_display(stdout, &rep->show_threads_values,
 494                                         style);
 495                perf_read_values_destroy(&rep->show_threads_values);
 496        }
 497
 498        if (sort__mode == SORT_MODE__BRANCH)
 499                branch_type_stat_display(stdout, &rep->brtype_stat);
 500
 501        return 0;
 502}
 503
 504static void report__warn_kptr_restrict(const struct report *rep)
 505{
 506        struct map *kernel_map = machine__kernel_map(&rep->session->machines.host);
 507        struct kmap *kernel_kmap = kernel_map ? map__kmap(kernel_map) : NULL;
 508
 509        if (perf_evlist__exclude_kernel(rep->session->evlist))
 510                return;
 511
 512        if (kernel_map == NULL ||
 513            (kernel_map->dso->hit &&
 514             (kernel_kmap->ref_reloc_sym == NULL ||
 515              kernel_kmap->ref_reloc_sym->addr == 0))) {
 516                const char *desc =
 517                    "As no suitable kallsyms nor vmlinux was found, kernel samples\n"
 518                    "can't be resolved.";
 519
 520                if (kernel_map && map__has_symbols(kernel_map)) {
 521                        desc = "If some relocation was applied (e.g. "
 522                               "kexec) symbols may be misresolved.";
 523                }
 524
 525                ui__warning(
 526"Kernel address maps (/proc/{kallsyms,modules}) were restricted.\n\n"
 527"Check /proc/sys/kernel/kptr_restrict before running 'perf record'.\n\n%s\n\n"
 528"Samples in kernel modules can't be resolved as well.\n\n",
 529                desc);
 530        }
 531}
 532
 533static int report__gtk_browse_hists(struct report *rep, const char *help)
 534{
 535        int (*hist_browser)(struct perf_evlist *evlist, const char *help,
 536                            struct hist_browser_timer *timer, float min_pcnt);
 537
 538        hist_browser = dlsym(perf_gtk_handle, "perf_evlist__gtk_browse_hists");
 539
 540        if (hist_browser == NULL) {
 541                ui__error("GTK browser not found!\n");
 542                return -1;
 543        }
 544
 545        return hist_browser(rep->session->evlist, help, NULL, rep->min_percent);
 546}
 547
 548static int report__browse_hists(struct report *rep)
 549{
 550        int ret;
 551        struct perf_session *session = rep->session;
 552        struct perf_evlist *evlist = session->evlist;
 553        const char *help = perf_tip(system_path(TIPDIR));
 554
 555        if (help == NULL) {
 556                /* fallback for people who don't install perf ;-) */
 557                help = perf_tip(DOCDIR);
 558                if (help == NULL)
 559                        help = "Cannot load tips.txt file, please install perf!";
 560        }
 561
 562        switch (use_browser) {
 563        case 1:
 564                ret = perf_evlist__tui_browse_hists(evlist, help, NULL,
 565                                                    rep->min_percent,
 566                                                    &session->header.env,
 567                                                    true, &rep->annotation_opts);
 568                /*
 569                 * Usually "ret" is the last pressed key, and we only
 570                 * care if the key notifies us to switch data file.
 571                 */
 572                if (ret != K_SWITCH_INPUT_DATA)
 573                        ret = 0;
 574                break;
 575        case 2:
 576                ret = report__gtk_browse_hists(rep, help);
 577                break;
 578        default:
 579                ret = perf_evlist__tty_browse_hists(evlist, rep, help);
 580                break;
 581        }
 582
 583        return ret;
 584}
 585
 586static int report__collapse_hists(struct report *rep)
 587{
 588        struct ui_progress prog;
 589        struct perf_evsel *pos;
 590        int ret = 0;
 591
 592        ui_progress__init(&prog, rep->nr_entries, "Merging related events...");
 593
 594        evlist__for_each_entry(rep->session->evlist, pos) {
 595                struct hists *hists = evsel__hists(pos);
 596
 597                if (pos->idx == 0)
 598                        hists->symbol_filter_str = rep->symbol_filter_str;
 599
 600                hists->socket_filter = rep->socket_filter;
 601
 602                ret = hists__collapse_resort(hists, &prog);
 603                if (ret < 0)
 604                        break;
 605
 606                /* Non-group events are considered as leader */
 607                if (symbol_conf.event_group &&
 608                    !perf_evsel__is_group_leader(pos)) {
 609                        struct hists *leader_hists = evsel__hists(pos->leader);
 610
 611                        hists__match(leader_hists, hists);
 612                        hists__link(leader_hists, hists);
 613                }
 614        }
 615
 616        ui_progress__finish();
 617        return ret;
 618}
 619
 620static int hists__resort_cb(struct hist_entry *he, void *arg)
 621{
 622        struct report *rep = arg;
 623        struct symbol *sym = he->ms.sym;
 624
 625        if (rep->symbol_ipc && sym && !sym->annotate2) {
 626                struct perf_evsel *evsel = hists_to_evsel(he->hists);
 627
 628                symbol__annotate2(sym, he->ms.map, evsel,
 629                                  &annotation__default_options, NULL);
 630        }
 631
 632        return 0;
 633}
 634
 635static void report__output_resort(struct report *rep)
 636{
 637        struct ui_progress prog;
 638        struct perf_evsel *pos;
 639
 640        ui_progress__init(&prog, rep->nr_entries, "Sorting events for output...");
 641
 642        evlist__for_each_entry(rep->session->evlist, pos) {
 643                perf_evsel__output_resort_cb(pos, &prog,
 644                                             hists__resort_cb, rep);
 645        }
 646
 647        ui_progress__finish();
 648}
 649
 650static void stats_setup(struct report *rep)
 651{
 652        memset(&rep->tool, 0, sizeof(rep->tool));
 653        rep->tool.no_warn = true;
 654}
 655
 656static int stats_print(struct report *rep)
 657{
 658        struct perf_session *session = rep->session;
 659
 660        perf_session__fprintf_nr_events(session, stdout);
 661        return 0;
 662}
 663
 664static void tasks_setup(struct report *rep)
 665{
 666        memset(&rep->tool, 0, sizeof(rep->tool));
 667        rep->tool.ordered_events = true;
 668        if (rep->mmaps_mode) {
 669                rep->tool.mmap = perf_event__process_mmap;
 670                rep->tool.mmap2 = perf_event__process_mmap2;
 671        }
 672        rep->tool.comm = perf_event__process_comm;
 673        rep->tool.exit = perf_event__process_exit;
 674        rep->tool.fork = perf_event__process_fork;
 675        rep->tool.no_warn = true;
 676}
 677
 678struct task {
 679        struct thread           *thread;
 680        struct list_head         list;
 681        struct list_head         children;
 682};
 683
 684static struct task *tasks_list(struct task *task, struct machine *machine)
 685{
 686        struct thread *parent_thread, *thread = task->thread;
 687        struct task   *parent_task;
 688
 689        /* Already listed. */
 690        if (!list_empty(&task->list))
 691                return NULL;
 692
 693        /* Last one in the chain. */
 694        if (thread->ppid == -1)
 695                return task;
 696
 697        parent_thread = machine__find_thread(machine, -1, thread->ppid);
 698        if (!parent_thread)
 699                return ERR_PTR(-ENOENT);
 700
 701        parent_task = thread__priv(parent_thread);
 702        list_add_tail(&task->list, &parent_task->children);
 703        return tasks_list(parent_task, machine);
 704}
 705
 706static size_t maps__fprintf_task(struct maps *maps, int indent, FILE *fp)
 707{
 708        size_t printed = 0;
 709        struct rb_node *nd;
 710
 711        for (nd = rb_first(&maps->entries); nd; nd = rb_next(nd)) {
 712                struct map *map = rb_entry(nd, struct map, rb_node);
 713
 714                printed += fprintf(fp, "%*s  %" PRIx64 "-%" PRIx64 " %c%c%c%c %08" PRIx64 " %" PRIu64 " %s\n",
 715                                   indent, "", map->start, map->end,
 716                                   map->prot & PROT_READ ? 'r' : '-',
 717                                   map->prot & PROT_WRITE ? 'w' : '-',
 718                                   map->prot & PROT_EXEC ? 'x' : '-',
 719                                   map->flags & MAP_SHARED ? 's' : 'p',
 720                                   map->pgoff,
 721                                   map->ino, map->dso->name);
 722        }
 723
 724        return printed;
 725}
 726
 727static int map_groups__fprintf_task(struct map_groups *mg, int indent, FILE *fp)
 728{
 729        return maps__fprintf_task(&mg->maps, indent, fp);
 730}
 731
 732static void task__print_level(struct task *task, FILE *fp, int level)
 733{
 734        struct thread *thread = task->thread;
 735        struct task *child;
 736        int comm_indent = fprintf(fp, "  %8d %8d %8d |%*s",
 737                                  thread->pid_, thread->tid, thread->ppid,
 738                                  level, "");
 739
 740        fprintf(fp, "%s\n", thread__comm_str(thread));
 741
 742        map_groups__fprintf_task(thread->mg, comm_indent, fp);
 743
 744        if (!list_empty(&task->children)) {
 745                list_for_each_entry(child, &task->children, list)
 746                        task__print_level(child, fp, level + 1);
 747        }
 748}
 749
 750static int tasks_print(struct report *rep, FILE *fp)
 751{
 752        struct perf_session *session = rep->session;
 753        struct machine      *machine = &session->machines.host;
 754        struct task *tasks, *task;
 755        unsigned int nr = 0, itask = 0, i;
 756        struct rb_node *nd;
 757        LIST_HEAD(list);
 758
 759        /*
 760         * No locking needed while accessing machine->threads,
 761         * because --tasks is single threaded command.
 762         */
 763
 764        /* Count all the threads. */
 765        for (i = 0; i < THREADS__TABLE_SIZE; i++)
 766                nr += machine->threads[i].nr;
 767
 768        tasks = malloc(sizeof(*tasks) * nr);
 769        if (!tasks)
 770                return -ENOMEM;
 771
 772        for (i = 0; i < THREADS__TABLE_SIZE; i++) {
 773                struct threads *threads = &machine->threads[i];
 774
 775                for (nd = rb_first_cached(&threads->entries); nd;
 776                     nd = rb_next(nd)) {
 777                        task = tasks + itask++;
 778
 779                        task->thread = rb_entry(nd, struct thread, rb_node);
 780                        INIT_LIST_HEAD(&task->children);
 781                        INIT_LIST_HEAD(&task->list);
 782                        thread__set_priv(task->thread, task);
 783                }
 784        }
 785
 786        /*
 787         * Iterate every task down to the unprocessed parent
 788         * and link all in task children list. Task with no
 789         * parent is added into 'list'.
 790         */
 791        for (itask = 0; itask < nr; itask++) {
 792                task = tasks + itask;
 793
 794                if (!list_empty(&task->list))
 795                        continue;
 796
 797                task = tasks_list(task, machine);
 798                if (IS_ERR(task)) {
 799                        pr_err("Error: failed to process tasks\n");
 800                        free(tasks);
 801                        return PTR_ERR(task);
 802                }
 803
 804                if (task)
 805                        list_add_tail(&task->list, &list);
 806        }
 807
 808        fprintf(fp, "# %8s %8s %8s  %s\n", "pid", "tid", "ppid", "comm");
 809
 810        list_for_each_entry(task, &list, list)
 811                task__print_level(task, fp, 0);
 812
 813        free(tasks);
 814        return 0;
 815}
 816
 817static int __cmd_report(struct report *rep)
 818{
 819        int ret;
 820        struct perf_session *session = rep->session;
 821        struct perf_evsel *pos;
 822        struct perf_data *data = session->data;
 823
 824        signal(SIGINT, sig_handler);
 825
 826        if (rep->cpu_list) {
 827                ret = perf_session__cpu_bitmap(session, rep->cpu_list,
 828                                               rep->cpu_bitmap);
 829                if (ret) {
 830                        ui__error("failed to set cpu bitmap\n");
 831                        return ret;
 832                }
 833                session->itrace_synth_opts->cpu_bitmap = rep->cpu_bitmap;
 834        }
 835
 836        if (rep->show_threads) {
 837                ret = perf_read_values_init(&rep->show_threads_values);
 838                if (ret)
 839                        return ret;
 840        }
 841
 842        ret = report__setup_sample_type(rep);
 843        if (ret) {
 844                /* report__setup_sample_type() already showed error message */
 845                return ret;
 846        }
 847
 848        if (rep->stats_mode)
 849                stats_setup(rep);
 850
 851        if (rep->tasks_mode)
 852                tasks_setup(rep);
 853
 854        ret = perf_session__process_events(session);
 855        if (ret) {
 856                ui__error("failed to process sample\n");
 857                return ret;
 858        }
 859
 860        if (rep->stats_mode)
 861                return stats_print(rep);
 862
 863        if (rep->tasks_mode)
 864                return tasks_print(rep, stdout);
 865
 866        report__warn_kptr_restrict(rep);
 867
 868        evlist__for_each_entry(session->evlist, pos)
 869                rep->nr_entries += evsel__hists(pos)->nr_entries;
 870
 871        if (use_browser == 0) {
 872                if (verbose > 3)
 873                        perf_session__fprintf(session, stdout);
 874
 875                if (verbose > 2)
 876                        perf_session__fprintf_dsos(session, stdout);
 877
 878                if (dump_trace) {
 879                        perf_session__fprintf_nr_events(session, stdout);
 880                        perf_evlist__fprintf_nr_events(session->evlist, stdout);
 881                        return 0;
 882                }
 883        }
 884
 885        ret = report__collapse_hists(rep);
 886        if (ret) {
 887                ui__error("failed to process hist entry\n");
 888                return ret;
 889        }
 890
 891        if (session_done())
 892                return 0;
 893
 894        /*
 895         * recalculate number of entries after collapsing since it
 896         * might be changed during the collapse phase.
 897         */
 898        rep->nr_entries = 0;
 899        evlist__for_each_entry(session->evlist, pos)
 900                rep->nr_entries += evsel__hists(pos)->nr_entries;
 901
 902        if (rep->nr_entries == 0) {
 903                ui__error("The %s data has no samples!\n", data->path);
 904                return 0;
 905        }
 906
 907        report__output_resort(rep);
 908
 909        return report__browse_hists(rep);
 910}
 911
 912static int
 913report_parse_callchain_opt(const struct option *opt, const char *arg, int unset)
 914{
 915        struct callchain_param *callchain = opt->value;
 916
 917        callchain->enabled = !unset;
 918        /*
 919         * --no-call-graph
 920         */
 921        if (unset) {
 922                symbol_conf.use_callchain = false;
 923                callchain->mode = CHAIN_NONE;
 924                return 0;
 925        }
 926
 927        return parse_callchain_report_opt(arg);
 928}
 929
 930static int
 931parse_time_quantum(const struct option *opt, const char *arg,
 932                   int unset __maybe_unused)
 933{
 934        unsigned long *time_q = opt->value;
 935        char *end;
 936
 937        *time_q = strtoul(arg, &end, 0);
 938        if (end == arg)
 939                goto parse_err;
 940        if (*time_q == 0) {
 941                pr_err("time quantum cannot be 0");
 942                return -1;
 943        }
 944        while (isspace(*end))
 945                end++;
 946        if (*end == 0)
 947                return 0;
 948        if (!strcmp(end, "s")) {
 949                *time_q *= NSEC_PER_SEC;
 950                return 0;
 951        }
 952        if (!strcmp(end, "ms")) {
 953                *time_q *= NSEC_PER_MSEC;
 954                return 0;
 955        }
 956        if (!strcmp(end, "us")) {
 957                *time_q *= NSEC_PER_USEC;
 958                return 0;
 959        }
 960        if (!strcmp(end, "ns"))
 961                return 0;
 962parse_err:
 963        pr_err("Cannot parse time quantum `%s'\n", arg);
 964        return -1;
 965}
 966
 967int
 968report_parse_ignore_callees_opt(const struct option *opt __maybe_unused,
 969                                const char *arg, int unset __maybe_unused)
 970{
 971        if (arg) {
 972                int err = regcomp(&ignore_callees_regex, arg, REG_EXTENDED);
 973                if (err) {
 974                        char buf[BUFSIZ];
 975                        regerror(err, &ignore_callees_regex, buf, sizeof(buf));
 976                        pr_err("Invalid --ignore-callees regex: %s\n%s", arg, buf);
 977                        return -1;
 978                }
 979                have_ignore_callees = 1;
 980        }
 981
 982        return 0;
 983}
 984
 985static int
 986parse_branch_mode(const struct option *opt,
 987                  const char *str __maybe_unused, int unset)
 988{
 989        int *branch_mode = opt->value;
 990
 991        *branch_mode = !unset;
 992        return 0;
 993}
 994
 995static int
 996parse_percent_limit(const struct option *opt, const char *str,
 997                    int unset __maybe_unused)
 998{
 999        struct report *rep = opt->value;
1000        double pcnt = strtof(str, NULL);
1001
1002        rep->min_percent = pcnt;
1003        callchain_param.min_percent = pcnt;
1004        return 0;
1005}
1006
1007int cmd_report(int argc, const char **argv)
1008{
1009        struct perf_session *session;
1010        struct itrace_synth_opts itrace_synth_opts = { .set = 0, };
1011        struct stat st;
1012        bool has_br_stack = false;
1013        int branch_mode = -1;
1014        bool branch_call_mode = false;
1015#define CALLCHAIN_DEFAULT_OPT  "graph,0.5,caller,function,percent"
1016        static const char report_callchain_help[] = "Display call graph (stack chain/backtrace):\n\n"
1017                                                    CALLCHAIN_REPORT_HELP
1018                                                    "\n\t\t\t\tDefault: " CALLCHAIN_DEFAULT_OPT;
1019        char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT;
1020        const char * const report_usage[] = {
1021                "perf report [<options>]",
1022                NULL
1023        };
1024        struct report report = {
1025                .tool = {
1026                        .sample          = process_sample_event,
1027                        .mmap            = perf_event__process_mmap,
1028                        .mmap2           = perf_event__process_mmap2,
1029                        .comm            = perf_event__process_comm,
1030                        .namespaces      = perf_event__process_namespaces,
1031                        .exit            = perf_event__process_exit,
1032                        .fork            = perf_event__process_fork,
1033                        .lost            = perf_event__process_lost,
1034                        .read            = process_read_event,
1035                        .attr            = perf_event__process_attr,
1036                        .tracing_data    = perf_event__process_tracing_data,
1037                        .build_id        = perf_event__process_build_id,
1038                        .id_index        = perf_event__process_id_index,
1039                        .auxtrace_info   = perf_event__process_auxtrace_info,
1040                        .auxtrace        = perf_event__process_auxtrace,
1041                        .event_update    = perf_event__process_event_update,
1042                        .feature         = process_feature_event,
1043                        .ordered_events  = true,
1044                        .ordering_requires_timestamps = true,
1045                },
1046                .max_stack               = PERF_MAX_STACK_DEPTH,
1047                .pretty_printing_style   = "normal",
1048                .socket_filter           = -1,
1049                .annotation_opts         = annotation__default_options,
1050        };
1051        const struct option options[] = {
1052        OPT_STRING('i', "input", &input_name, "file",
1053                    "input file name"),
1054        OPT_INCR('v', "verbose", &verbose,
1055                    "be more verbose (show symbol address, etc)"),
1056        OPT_BOOLEAN('q', "quiet", &quiet, "Do not show any message"),
1057        OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
1058                    "dump raw trace in ASCII"),
1059        OPT_BOOLEAN(0, "stats", &report.stats_mode, "Display event stats"),
1060        OPT_BOOLEAN(0, "tasks", &report.tasks_mode, "Display recorded tasks"),
1061        OPT_BOOLEAN(0, "mmaps", &report.mmaps_mode, "Display recorded tasks memory maps"),
1062        OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
1063                   "file", "vmlinux pathname"),
1064        OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux,
1065                    "don't load vmlinux even if found"),
1066        OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
1067                   "file", "kallsyms pathname"),
1068        OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"),
1069        OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
1070                    "load module symbols - WARNING: use only with -k and LIVE kernel"),
1071        OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
1072                    "Show a column with the number of samples"),
1073        OPT_BOOLEAN('T', "threads", &report.show_threads,
1074                    "Show per-thread event counters"),
1075        OPT_STRING(0, "pretty", &report.pretty_printing_style, "key",
1076                   "pretty printing style key: normal raw"),
1077        OPT_BOOLEAN(0, "tui", &report.use_tui, "Use the TUI interface"),
1078        OPT_BOOLEAN(0, "gtk", &report.use_gtk, "Use the GTK2 interface"),
1079        OPT_BOOLEAN(0, "stdio", &report.use_stdio,
1080                    "Use the stdio interface"),
1081        OPT_BOOLEAN(0, "header", &report.header, "Show data header."),
1082        OPT_BOOLEAN(0, "header-only", &report.header_only,
1083                    "Show only data header."),
1084        OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
1085                   sort_help("sort by key(s):")),
1086        OPT_STRING('F', "fields", &field_order, "key[,keys...]",
1087                   sort_help("output field(s): overhead period sample ")),
1088        OPT_BOOLEAN(0, "show-cpu-utilization", &symbol_conf.show_cpu_utilization,
1089                    "Show sample percentage for different cpu modes"),
1090        OPT_BOOLEAN_FLAG(0, "showcpuutilization", &symbol_conf.show_cpu_utilization,
1091                    "Show sample percentage for different cpu modes", PARSE_OPT_HIDDEN),
1092        OPT_STRING('p', "parent", &parent_pattern, "regex",
1093                   "regex filter to identify parent, see: '--sort parent'"),
1094        OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other,
1095                    "Only display entries with parent-match"),
1096        OPT_CALLBACK_DEFAULT('g', "call-graph", &callchain_param,
1097                             "print_type,threshold[,print_limit],order,sort_key[,branch],value",
1098                             report_callchain_help, &report_parse_callchain_opt,
1099                             callchain_default_opt),
1100        OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain,
1101                    "Accumulate callchains of children and show total overhead as well"),
1102        OPT_INTEGER(0, "max-stack", &report.max_stack,
1103                    "Set the maximum stack depth when parsing the callchain, "
1104                    "anything beyond the specified depth will be ignored. "
1105                    "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)),
1106        OPT_BOOLEAN('G', "inverted", &report.inverted_callchain,
1107                    "alias for inverted call graph"),
1108        OPT_CALLBACK(0, "ignore-callees", NULL, "regex",
1109                   "ignore callees of these functions in call graphs",
1110                   report_parse_ignore_callees_opt),
1111        OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
1112                   "only consider symbols in these dsos"),
1113        OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
1114                   "only consider symbols in these comms"),
1115        OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]",
1116                   "only consider symbols in these pids"),
1117        OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]",
1118                   "only consider symbols in these tids"),
1119        OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
1120                   "only consider these symbols"),
1121        OPT_STRING(0, "symbol-filter", &report.symbol_filter_str, "filter",
1122                   "only show symbols that (partially) match with this filter"),
1123        OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str,
1124                   "width[,width...]",
1125                   "don't try to adjust column width, use these fixed values"),
1126        OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf.field_sep, "separator",
1127                   "separator for columns, no spaces will be added between "
1128                   "columns '.' is reserved."),
1129        OPT_BOOLEAN('U', "hide-unresolved", &symbol_conf.hide_unresolved,
1130                    "Only display entries resolved to a symbol"),
1131        OPT_CALLBACK(0, "symfs", NULL, "directory",
1132                     "Look for files with symbols relative to this directory",
1133                     symbol__config_symfs),
1134        OPT_STRING('C', "cpu", &report.cpu_list, "cpu",
1135                   "list of cpus to profile"),
1136        OPT_BOOLEAN('I', "show-info", &report.show_full_info,
1137                    "Display extended information about perf.data file"),
1138        OPT_BOOLEAN(0, "source", &report.annotation_opts.annotate_src,
1139                    "Interleave source code with assembly code (default)"),
1140        OPT_BOOLEAN(0, "asm-raw", &report.annotation_opts.show_asm_raw,
1141                    "Display raw encoding of assembly instructions (default)"),
1142        OPT_STRING('M', "disassembler-style", &report.annotation_opts.disassembler_style, "disassembler style",
1143                   "Specify disassembler style (e.g. -M intel for intel syntax)"),
1144        OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,
1145                    "Show a column with the sum of periods"),
1146        OPT_BOOLEAN_SET(0, "group", &symbol_conf.event_group, &report.group_set,
1147                    "Show event group information together"),
1148        OPT_CALLBACK_NOOPT('b', "branch-stack", &branch_mode, "",
1149                    "use branch records for per branch histogram filling",
1150                    parse_branch_mode),
1151        OPT_BOOLEAN(0, "branch-history", &branch_call_mode,
1152                    "add last branch records to call history"),
1153        OPT_STRING(0, "objdump", &report.annotation_opts.objdump_path, "path",
1154                   "objdump binary to use for disassembly and annotations"),
1155        OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
1156                    "Disable symbol demangling"),
1157        OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel,
1158                    "Enable kernel symbol demangling"),
1159        OPT_BOOLEAN(0, "mem-mode", &report.mem_mode, "mem access profile"),
1160        OPT_INTEGER(0, "samples", &symbol_conf.res_sample,
1161                    "Number of samples to save per histogram entry for individual browsing"),
1162        OPT_CALLBACK(0, "percent-limit", &report, "percent",
1163                     "Don't show entries under that percent", parse_percent_limit),
1164        OPT_CALLBACK(0, "percentage", NULL, "relative|absolute",
1165                     "how to display percentage of filtered entries", parse_filter_percentage),
1166        OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts",
1167                            "Instruction Tracing options\n" ITRACE_HELP,
1168                            itrace_parse_synth_opts),
1169        OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename,
1170                        "Show full source file name path for source lines"),
1171        OPT_BOOLEAN(0, "show-ref-call-graph", &symbol_conf.show_ref_callgraph,
1172                    "Show callgraph from reference event"),
1173        OPT_INTEGER(0, "socket-filter", &report.socket_filter,
1174                    "only show processor socket that match with this filter"),
1175        OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace,
1176                    "Show raw trace event output (do not use print fmt or plugins)"),
1177        OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy,
1178                    "Show entries in a hierarchy"),
1179        OPT_CALLBACK_DEFAULT(0, "stdio-color", NULL, "mode",
1180                             "'always' (default), 'never' or 'auto' only applicable to --stdio mode",
1181                             stdio__config_color, "always"),
1182        OPT_STRING(0, "time", &report.time_str, "str",
1183                   "Time span of interest (start,stop)"),
1184        OPT_BOOLEAN(0, "inline", &symbol_conf.inline_name,
1185                    "Show inline function"),
1186        OPT_CALLBACK(0, "percent-type", &report.annotation_opts, "local-period",
1187                     "Set percent type local/global-period/hits",
1188                     annotate_parse_percent_type),
1189        OPT_BOOLEAN(0, "ns", &symbol_conf.nanosecs, "Show times in nanosecs"),
1190        OPT_CALLBACK(0, "time-quantum", &symbol_conf.time_quantum, "time (ms|us|ns|s)",
1191                     "Set time quantum for time sort key (default 100ms)",
1192                     parse_time_quantum),
1193        OPT_END()
1194        };
1195        struct perf_data data = {
1196                .mode  = PERF_DATA_MODE_READ,
1197        };
1198        int ret = hists__init();
1199        char sort_tmp[128];
1200
1201        if (ret < 0)
1202                return ret;
1203
1204        ret = perf_config(report__config, &report);
1205        if (ret)
1206                return ret;
1207
1208        argc = parse_options(argc, argv, options, report_usage, 0);
1209        if (argc) {
1210                /*
1211                 * Special case: if there's an argument left then assume that
1212                 * it's a symbol filter:
1213                 */
1214                if (argc > 1)
1215                        usage_with_options(report_usage, options);
1216
1217                report.symbol_filter_str = argv[0];
1218        }
1219
1220        if (report.mmaps_mode)
1221                report.tasks_mode = true;
1222
1223        if (quiet)
1224                perf_quiet_option();
1225
1226        if (symbol_conf.vmlinux_name &&
1227            access(symbol_conf.vmlinux_name, R_OK)) {
1228                pr_err("Invalid file: %s\n", symbol_conf.vmlinux_name);
1229                return -EINVAL;
1230        }
1231        if (symbol_conf.kallsyms_name &&
1232            access(symbol_conf.kallsyms_name, R_OK)) {
1233                pr_err("Invalid file: %s\n", symbol_conf.kallsyms_name);
1234                return -EINVAL;
1235        }
1236
1237        if (report.inverted_callchain)
1238                callchain_param.order = ORDER_CALLER;
1239        if (symbol_conf.cumulate_callchain && !callchain_param.order_set)
1240                callchain_param.order = ORDER_CALLER;
1241
1242        if (itrace_synth_opts.callchain &&
1243            (int)itrace_synth_opts.callchain_sz > report.max_stack)
1244                report.max_stack = itrace_synth_opts.callchain_sz;
1245
1246        if (!input_name || !strlen(input_name)) {
1247                if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
1248                        input_name = "-";
1249                else
1250                        input_name = "perf.data";
1251        }
1252
1253        data.path  = input_name;
1254        data.force = symbol_conf.force;
1255
1256repeat:
1257        session = perf_session__new(&data, false, &report.tool);
1258        if (session == NULL)
1259                return -1;
1260
1261        if (zstd_init(&(session->zstd_data), 0) < 0)
1262                pr_warning("Decompression initialization failed. Reported data may be incomplete.\n");
1263
1264        if (report.queue_size) {
1265                ordered_events__set_alloc_size(&session->ordered_events,
1266                                               report.queue_size);
1267        }
1268
1269        session->itrace_synth_opts = &itrace_synth_opts;
1270
1271        report.session = session;
1272
1273        has_br_stack = perf_header__has_feat(&session->header,
1274                                             HEADER_BRANCH_STACK);
1275
1276        setup_forced_leader(&report, session->evlist);
1277
1278        if (itrace_synth_opts.last_branch)
1279                has_br_stack = true;
1280
1281        if (has_br_stack && branch_call_mode)
1282                symbol_conf.show_branchflag_count = true;
1283
1284        memset(&report.brtype_stat, 0, sizeof(struct branch_type_stat));
1285
1286        /*
1287         * Branch mode is a tristate:
1288         * -1 means default, so decide based on the file having branch data.
1289         * 0/1 means the user chose a mode.
1290         */
1291        if (((branch_mode == -1 && has_br_stack) || branch_mode == 1) &&
1292            !branch_call_mode) {
1293                sort__mode = SORT_MODE__BRANCH;
1294                symbol_conf.cumulate_callchain = false;
1295        }
1296        if (branch_call_mode) {
1297                callchain_param.key = CCKEY_ADDRESS;
1298                callchain_param.branch_callstack = 1;
1299                symbol_conf.use_callchain = true;
1300                callchain_register_param(&callchain_param);
1301                if (sort_order == NULL)
1302                        sort_order = "srcline,symbol,dso";
1303        }
1304
1305        if (report.mem_mode) {
1306                if (sort__mode == SORT_MODE__BRANCH) {
1307                        pr_err("branch and mem mode incompatible\n");
1308                        goto error;
1309                }
1310                sort__mode = SORT_MODE__MEMORY;
1311                symbol_conf.cumulate_callchain = false;
1312        }
1313
1314        if (symbol_conf.report_hierarchy) {
1315                /* disable incompatible options */
1316                symbol_conf.cumulate_callchain = false;
1317
1318                if (field_order) {
1319                        pr_err("Error: --hierarchy and --fields options cannot be used together\n");
1320                        parse_options_usage(report_usage, options, "F", 1);
1321                        parse_options_usage(NULL, options, "hierarchy", 0);
1322                        goto error;
1323                }
1324
1325                perf_hpp_list.need_collapse = true;
1326        }
1327
1328        if (report.use_stdio)
1329                use_browser = 0;
1330        else if (report.use_tui)
1331                use_browser = 1;
1332        else if (report.use_gtk)
1333                use_browser = 2;
1334
1335        /* Force tty output for header output and per-thread stat. */
1336        if (report.header || report.header_only || report.show_threads)
1337                use_browser = 0;
1338        if (report.header || report.header_only)
1339                report.tool.show_feat_hdr = SHOW_FEAT_HEADER;
1340        if (report.show_full_info)
1341                report.tool.show_feat_hdr = SHOW_FEAT_HEADER_FULL_INFO;
1342        if (report.stats_mode || report.tasks_mode)
1343                use_browser = 0;
1344        if (report.stats_mode && report.tasks_mode) {
1345                pr_err("Error: --tasks and --mmaps can't be used together with --stats\n");
1346                goto error;
1347        }
1348
1349        if (strcmp(input_name, "-") != 0)
1350                setup_browser(true);
1351        else
1352                use_browser = 0;
1353
1354        if (sort_order && strstr(sort_order, "ipc")) {
1355                parse_options_usage(report_usage, options, "s", 1);
1356                goto error;
1357        }
1358
1359        if (sort_order && strstr(sort_order, "symbol")) {
1360                if (sort__mode == SORT_MODE__BRANCH) {
1361                        snprintf(sort_tmp, sizeof(sort_tmp), "%s,%s",
1362                                 sort_order, "ipc_lbr");
1363                        report.symbol_ipc = true;
1364                } else {
1365                        snprintf(sort_tmp, sizeof(sort_tmp), "%s,%s",
1366                                 sort_order, "ipc_null");
1367                }
1368
1369                sort_order = sort_tmp;
1370        }
1371
1372        if (setup_sorting(session->evlist) < 0) {
1373                if (sort_order)
1374                        parse_options_usage(report_usage, options, "s", 1);
1375                if (field_order)
1376                        parse_options_usage(sort_order ? NULL : report_usage,
1377                                            options, "F", 1);
1378                goto error;
1379        }
1380
1381        if ((report.header || report.header_only) && !quiet) {
1382                perf_session__fprintf_info(session, stdout,
1383                                           report.show_full_info);
1384                if (report.header_only) {
1385                        ret = 0;
1386                        goto error;
1387                }
1388        } else if (use_browser == 0 && !quiet &&
1389                   !report.stats_mode && !report.tasks_mode) {
1390                fputs("# To display the perf.data header info, please use --header/--header-only options.\n#\n",
1391                      stdout);
1392        }
1393
1394        /*
1395         * Only in the TUI browser we are doing integrated annotation,
1396         * so don't allocate extra space that won't be used in the stdio
1397         * implementation.
1398         */
1399        if (ui__has_annotation() || report.symbol_ipc) {
1400                ret = symbol__annotation_init();
1401                if (ret < 0)
1402                        goto error;
1403                /*
1404                 * For searching by name on the "Browse map details".
1405                 * providing it only in verbose mode not to bloat too
1406                 * much struct symbol.
1407                 */
1408                if (verbose > 0) {
1409                        /*
1410                         * XXX: Need to provide a less kludgy way to ask for
1411                         * more space per symbol, the u32 is for the index on
1412                         * the ui browser.
1413                         * See symbol__browser_index.
1414                         */
1415                        symbol_conf.priv_size += sizeof(u32);
1416                        symbol_conf.sort_by_name = true;
1417                }
1418                annotation_config__init();
1419        }
1420
1421        if (symbol__init(&session->header.env) < 0)
1422                goto error;
1423
1424        if (report.time_str) {
1425                ret = perf_time__parse_for_ranges(report.time_str, session,
1426                                                  &report.ptime_range,
1427                                                  &report.range_size,
1428                                                  &report.range_num);
1429                if (ret < 0)
1430                        goto error;
1431        }
1432
1433        if (session->tevent.pevent &&
1434            tep_set_function_resolver(session->tevent.pevent,
1435                                      machine__resolve_kernel_addr,
1436                                      &session->machines.host) < 0) {
1437                pr_err("%s: failed to set libtraceevent function resolver\n",
1438                       __func__);
1439                return -1;
1440        }
1441
1442        sort__setup_elide(stdout);
1443
1444        ret = __cmd_report(&report);
1445        if (ret == K_SWITCH_INPUT_DATA) {
1446                perf_session__delete(session);
1447                goto repeat;
1448        } else
1449                ret = 0;
1450
1451error:
1452        if (report.ptime_range)
1453                zfree(&report.ptime_range);
1454        zstd_fini(&(session->zstd_data));
1455        perf_session__delete(session);
1456        return ret;
1457}
1458