Pileus Git - ~andy/linux/blob - tools/perf/builtin-report.c

   1 /*
   2  * builtin-report.c
   3  *
   4  * Builtin report command: Analyze the perf.data input file,
   5  * look up and read DSOs and symbol information and display
   6  * a histogram of results, along various sorting keys.
   7  */
   8 #include "builtin.h"
   9
  10 #include "util/util.h"
  11
  12 #include "util/annotate.h"
  13 #include "util/color.h"
  14 #include <linux/list.h>
  15 #include "util/cache.h"
  16 #include <linux/rbtree.h>
  17 #include "util/symbol.h"
  18 #include "util/callchain.h"
  19 #include "util/strlist.h"
  20 #include "util/values.h"
  21
  22 #include "perf.h"
  23 #include "util/debug.h"
  24 #include "util/evlist.h"
  25 #include "util/evsel.h"
  26 #include "util/header.h"
  27 #include "util/session.h"
  28 #include "util/tool.h"
  29
  30 #include "util/parse-options.h"
  31 #include "util/parse-events.h"
  32
  33 #include "util/thread.h"
  34 #include "util/sort.h"
  35 #include "util/hist.h"
  36
  37 #include <linux/bitmap.h>
  38
  39 struct perf_report {
  40         struct perf_tool        tool;
  41         struct perf_session     *session;
  42         char const              *input_name;
  43         bool                    force, use_tui, use_stdio;
  44         bool                    hide_unresolved;
  45         bool                    dont_use_callchains;
  46         bool                    show_full_info;
  47         bool                    show_threads;
  48         bool                    inverted_callchain;
  49         struct perf_read_values show_threads_values;
  50         const char              *pretty_printing_style;
  51         symbol_filter_t         annotate_init;
  52         const char              *cpu_list;
  53         DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
  54 };
  55
  56 static int perf_report__add_branch_hist_entry(struct perf_tool *tool,
  57                                         struct addr_location *al,
  58                                         struct perf_sample *sample,
  59                                         struct perf_evsel *evsel,
  60                                       struct machine *machine)
  61 {
  62         struct perf_report *rep = container_of(tool, struct perf_report, tool);
  63         struct symbol *parent = NULL;
  64         int err = 0;
  65         unsigned i;
  66         struct hist_entry *he;
  67         struct branch_info *bi, *bx;
  68
  69         if ((sort__has_parent || symbol_conf.use_callchain)
  70             && sample->callchain) {
  71                 err = machine__resolve_callchain(machine, evsel, al->thread,
  72                                                  sample->callchain, &parent);
  73                 if (err)
  74                         return err;
  75         }
  76
  77         bi = machine__resolve_bstack(machine, al->thread,
  78                                      sample->branch_stack);
  79         if (!bi)
  80                 return -ENOMEM;
  81
  82         for (i = 0; i < sample->branch_stack->nr; i++) {
  83                 if (rep->hide_unresolved && !(bi[i].from.sym && bi[i].to.sym))
  84                         continue;
  85                 /*
  86                  * The report shows the percentage of total branches captured
  87                  * and not events sampled. Thus we use a pseudo period of 1.
  88                  */
  89                 he = __hists__add_branch_entry(&evsel->hists, al, parent,
  90                                 &bi[i], 1);
  91                 if (he) {
  92                         struct annotation *notes;
  93                         err = -ENOMEM;
  94                         bx = he->branch_info;
  95                         if (bx->from.sym && use_browser > 0) {
  96                                 notes = symbol__annotation(bx->from.sym);
  97                                 if (!notes->src
  98                                     && symbol__alloc_hist(bx->from.sym) < 0)
  99                                         goto out;
 100
 101                                 err = symbol__inc_addr_samples(bx->from.sym,
 102                                                                bx->from.map,
 103                                                                evsel->idx,
 104                                                                bx->from.al_addr);
 105                                 if (err)
 106                                         goto out;
 107                         }
 108
 109                         if (bx->to.sym && use_browser > 0) {
 110                                 notes = symbol__annotation(bx->to.sym);
 111                                 if (!notes->src
 112                                     && symbol__alloc_hist(bx->to.sym) < 0)
 113                                         goto out;
 114
 115                                 err = symbol__inc_addr_samples(bx->to.sym,
 116                                                                bx->to.map,
 117                                                                evsel->idx,
 118                                                                bx->to.al_addr);
 119                                 if (err)
 120                                         goto out;
 121                         }
 122                         evsel->hists.stats.total_period += 1;
 123                         hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE);
 124                         err = 0;
 125                 } else
 126                         return -ENOMEM;
 127         }
 128 out:
 129         return err;
 130 }
 131
 132 static int perf_evsel__add_hist_entry(struct perf_evsel *evsel,
 133                                       struct addr_location *al,
 134                                       struct perf_sample *sample,
 135                                       struct machine *machine)
 136 {
 137         struct symbol *parent = NULL;
 138         int err = 0;
 139         struct hist_entry *he;
 140
 141         if ((sort__has_parent || symbol_conf.use_callchain) && sample->callchain) {
 142                 err = machine__resolve_callchain(machine, evsel, al->thread,
 143                                                  sample->callchain, &parent);
 144                 if (err)
 145                         return err;
 146         }
 147
 148         he = __hists__add_entry(&evsel->hists, al, parent, sample->period);
 149         if (he == NULL)
 150                 return -ENOMEM;
 151
 152         if (symbol_conf.use_callchain) {
 153                 err = callchain_append(he->callchain,
 154                                        &evsel->hists.callchain_cursor,
 155                                        sample->period);
 156                 if (err)
 157                         return err;
 158         }
 159         /*
 160          * Only in the newt browser we are doing integrated annotation,
 161          * so we don't allocated the extra space needed because the stdio
 162          * code will not use it.
 163          */
 164         if (al->sym != NULL && use_browser > 0) {
 165                 struct annotation *notes = symbol__annotation(he->ms.sym);
 166
 167                 assert(evsel != NULL);
 168
 169                 err = -ENOMEM;
 170                 if (notes->src == NULL && symbol__alloc_hist(he->ms.sym) < 0)
 171                         goto out;
 172
 173                 err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr);
 174         }
 175
 176         evsel->hists.stats.total_period += sample->period;
 177         hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE);
 178 out:
 179         return err;
 180 }
 181
 182
 183 static int process_sample_event(struct perf_tool *tool,
 184                                 union perf_event *event,
 185                                 struct perf_sample *sample,
 186                                 struct perf_evsel *evsel,
 187                                 struct machine *machine)
 188 {
 189         struct perf_report *rep = container_of(tool, struct perf_report, tool);
 190         struct addr_location al;
 191
 192         if (perf_event__preprocess_sample(event, machine, &al, sample,
 193                                           rep->annotate_init) < 0) {
 194                 fprintf(stderr, "problem processing %d event, skipping it.\n",
 195                         event->header.type);
 196                 return -1;
 197         }
 198
 199         if (al.filtered || (rep->hide_unresolved && al.sym == NULL))
 200                 return 0;
 201
 202         if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap))
 203                 return 0;
 204
 205         if (sort__branch_mode == 1) {
 206                 if (perf_report__add_branch_hist_entry(tool, &al, sample,
 207                                                        evsel, machine)) {
 208                         pr_debug("problem adding lbr entry, skipping event\n");
 209                         return -1;
 210                 }
 211         } else {
 212                 if (al.map != NULL)
 213                         al.map->dso->hit = 1;
 214
 215                 if (perf_evsel__add_hist_entry(evsel, &al, sample, machine)) {
 216                         pr_debug("problem incrementing symbol period, skipping event\n");
 217                         return -1;
 218                 }
 219         }
 220         return 0;
 221 }
 222
 223 static int process_read_event(struct perf_tool *tool,
 224                               union perf_event *event,
 225                               struct perf_sample *sample __used,
 226                               struct perf_evsel *evsel,
 227                               struct machine *machine __used)
 228 {
 229         struct perf_report *rep = container_of(tool, struct perf_report, tool);
 230
 231         if (rep->show_threads) {
 232                 const char *name = evsel ? event_name(evsel) : "unknown";
 233                 perf_read_values_add_value(&rep->show_threads_values,
 234                                            event->read.pid, event->read.tid,
 235                                            event->read.id,
 236                                            name,
 237                                            event->read.value);
 238         }
 239
 240         dump_printf(": %d %d %s %" PRIu64 "\n", event->read.pid, event->read.tid,
 241                     evsel ? event_name(evsel) : "FAIL",
 242                     event->read.value);
 243
 244         return 0;
 245 }
 246
 247 static int perf_report__setup_sample_type(struct perf_report *rep)
 248 {
 249         struct perf_session *self = rep->session;
 250
 251         if (!(self->sample_type & PERF_SAMPLE_CALLCHAIN)) {
 252                 if (sort__has_parent) {
 253                         ui__warning("Selected --sort parent, but no "
 254                                     "callchain data. Did you call "
 255                                     "'perf record' without -g?\n");
 256                         return -EINVAL;
 257                 }
 258                 if (symbol_conf.use_callchain) {
 259                         ui__warning("Selected -g but no callchain data. Did "
 260                                     "you call 'perf record' without -g?\n");
 261                         return -1;
 262                 }
 263         } else if (!rep->dont_use_callchains &&
 264                    callchain_param.mode != CHAIN_NONE &&
 265                    !symbol_conf.use_callchain) {
 266                         symbol_conf.use_callchain = true;
 267                         if (callchain_register_param(&callchain_param) < 0) {
 268                                 ui__warning("Can't register callchain "
 269                                             "params.\n");
 270                                 return -EINVAL;
 271                         }
 272         }
 273
 274         if (sort__branch_mode == 1) {
 275                 if (!(self->sample_type & PERF_SAMPLE_BRANCH_STACK)) {
 276                         fprintf(stderr, "selected -b but no branch data."
 277                                         " Did you call perf record without"
 278                                         " -b?\n");
 279                         return -1;
 280                 }
 281         }
 282
 283         return 0;
 284 }
 285
 286 extern volatile int session_done;
 287
 288 static void sig_handler(int sig __used)
 289 {
 290         session_done = 1;
 291 }
 292
 293 static size_t hists__fprintf_nr_sample_events(struct hists *self,
 294                                               const char *evname, FILE *fp)
 295 {
 296         size_t ret;
 297         char unit;
 298         unsigned long nr_events = self->stats.nr_events[PERF_RECORD_SAMPLE];
 299
 300         nr_events = convert_unit(nr_events, &unit);
 301         ret = fprintf(fp, "# Events: %lu%c", nr_events, unit);
 302         if (evname != NULL)
 303                 ret += fprintf(fp, " %s", evname);
 304         return ret + fprintf(fp, "\n#\n");
 305 }
 306
 307 static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist,
 308                                          struct perf_report *rep,
 309                                          const char *help)
 310 {
 311         struct perf_evsel *pos;
 312
 313         list_for_each_entry(pos, &evlist->entries, node) {
 314                 struct hists *hists = &pos->hists;
 315                 const char *evname = event_name(pos);
 316
 317                 hists__fprintf_nr_sample_events(hists, evname, stdout);
 318                 hists__fprintf(hists, NULL, false, true, 0, 0, stdout);
 319                 fprintf(stdout, "\n\n");
 320         }
 321
 322         if (sort_order == default_sort_order &&
 323             parent_pattern == default_parent_pattern) {
 324                 fprintf(stdout, "#\n# (%s)\n#\n", help);
 325
 326                 if (rep->show_threads) {
 327                         bool style = !strcmp(rep->pretty_printing_style, "raw");
 328                         perf_read_values_display(stdout, &rep->show_threads_values,
 329                                                  style);
 330                         perf_read_values_destroy(&rep->show_threads_values);
 331                 }
 332         }
 333
 334         return 0;
 335 }
 336
 337 static int __cmd_report(struct perf_report *rep)
 338 {
 339         int ret = -EINVAL;
 340         u64 nr_samples;
 341         struct perf_session *session = rep->session;
 342         struct perf_evsel *pos;
 343         struct map *kernel_map;
 344         struct kmap *kernel_kmap;
 345         const char *help = "For a higher level overview, try: perf report --sort comm,dso";
 346
 347         signal(SIGINT, sig_handler);
 348
 349         if (rep->cpu_list) {
 350                 ret = perf_session__cpu_bitmap(session, rep->cpu_list,
 351                                                rep->cpu_bitmap);
 352                 if (ret)
 353                         goto out_delete;
 354         }
 355
 356         if (use_browser <= 0)
 357                 perf_session__fprintf_info(session, stdout, rep->show_full_info);
 358
 359         if (rep->show_threads)
 360                 perf_read_values_init(&rep->show_threads_values);
 361
 362         ret = perf_report__setup_sample_type(rep);
 363         if (ret)
 364                 goto out_delete;
 365
 366         ret = perf_session__process_events(session, &rep->tool);
 367         if (ret)
 368                 goto out_delete;
 369
 370         kernel_map = session->host_machine.vmlinux_maps[MAP__FUNCTION];
 371         kernel_kmap = map__kmap(kernel_map);
 372         if (kernel_map == NULL ||
 373             (kernel_map->dso->hit &&
 374              (kernel_kmap->ref_reloc_sym == NULL ||
 375               kernel_kmap->ref_reloc_sym->addr == 0))) {
 376                 const struct dso *kdso = kernel_map->dso;
 377
 378                 ui__warning(
 379 "Kernel address maps (/proc/{kallsyms,modules}) were restricted.\n\n"
 380 "Check /proc/sys/kernel/kptr_restrict before running 'perf record'.\n\n%s\n\n"
 381 "Samples in kernel modules can't be resolved as well.\n\n",
 382                             RB_EMPTY_ROOT(&kdso->symbols[MAP__FUNCTION]) ?
 383 "As no suitable kallsyms nor vmlinux was found, kernel samples\n"
 384 "can't be resolved." :
 385 "If some relocation was applied (e.g. kexec) symbols may be misresolved.");
 386         }
 387
 388         if (dump_trace) {
 389                 perf_session__fprintf_nr_events(session, stdout);
 390                 goto out_delete;
 391         }
 392
 393         if (verbose > 3)
 394                 perf_session__fprintf(session, stdout);
 395
 396         if (verbose > 2)
 397                 perf_session__fprintf_dsos(session, stdout);
 398
 399         nr_samples = 0;
 400         list_for_each_entry(pos, &session->evlist->entries, node) {
 401                 struct hists *hists = &pos->hists;
 402
 403                 hists__collapse_resort(hists);
 404                 hists__output_resort(hists);
 405                 nr_samples += hists->stats.nr_events[PERF_RECORD_SAMPLE];
 406         }
 407
 408         if (nr_samples == 0) {
 409                 ui__warning("The %s file has no samples!\n", session->filename);
 410                 goto out_delete;
 411         }
 412
 413         if (use_browser > 0) {
 414                 perf_evlist__tui_browse_hists(session->evlist, help,
 415                                               NULL, NULL, 0);
 416         } else
 417                 perf_evlist__tty_browse_hists(session->evlist, rep, help);
 418
 419 out_delete:
 420         /*
 421          * Speed up the exit process, for large files this can
 422          * take quite a while.
 423          *
 424          * XXX Enable this when using valgrind or if we ever
 425          * librarize this command.
 426          *
 427          * Also experiment with obstacks to see how much speed
 428          * up we'll get here.
 429          *
 430          * perf_session__delete(session);
 431          */
 432         return ret;
 433 }
 434
 435 static int
 436 parse_callchain_opt(const struct option *opt, const char *arg, int unset)
 437 {
 438         struct perf_report *rep = (struct perf_report *)opt->value;
 439         char *tok, *tok2;
 440         char *endptr;
 441
 442         /*
 443          * --no-call-graph
 444          */
 445         if (unset) {
 446                 rep->dont_use_callchains = true;
 447                 return 0;
 448         }
 449
 450         symbol_conf.use_callchain = true;
 451
 452         if (!arg)
 453                 return 0;
 454
 455         tok = strtok((char *)arg, ",");
 456         if (!tok)
 457                 return -1;
 458
 459         /* get the output mode */
 460         if (!strncmp(tok, "graph", strlen(arg)))
 461                 callchain_param.mode = CHAIN_GRAPH_ABS;
 462
 463         else if (!strncmp(tok, "flat", strlen(arg)))
 464                 callchain_param.mode = CHAIN_FLAT;
 465
 466         else if (!strncmp(tok, "fractal", strlen(arg)))
 467                 callchain_param.mode = CHAIN_GRAPH_REL;
 468
 469         else if (!strncmp(tok, "none", strlen(arg))) {
 470                 callchain_param.mode = CHAIN_NONE;
 471                 symbol_conf.use_callchain = false;
 472
 473                 return 0;
 474         }
 475
 476         else
 477                 return -1;
 478
 479         /* get the min percentage */
 480         tok = strtok(NULL, ",");
 481         if (!tok)
 482                 goto setup;
 483
 484         callchain_param.min_percent = strtod(tok, &endptr);
 485         if (tok == endptr)
 486                 return -1;
 487
 488         /* get the print limit */
 489         tok2 = strtok(NULL, ",");
 490         if (!tok2)
 491                 goto setup;
 492
 493         if (tok2[0] != 'c') {
 494                 callchain_param.print_limit = strtoul(tok2, &endptr, 0);
 495                 tok2 = strtok(NULL, ",");
 496                 if (!tok2)
 497                         goto setup;
 498         }
 499
 500         /* get the call chain order */
 501         if (!strcmp(tok2, "caller"))
 502                 callchain_param.order = ORDER_CALLER;
 503         else if (!strcmp(tok2, "callee"))
 504                 callchain_param.order = ORDER_CALLEE;
 505         else
 506                 return -1;
 507 setup:
 508         if (callchain_register_param(&callchain_param) < 0) {
 509                 fprintf(stderr, "Can't register callchain params\n");
 510                 return -1;
 511         }
 512         return 0;
 513 }
 514
 515 static int
 516 parse_branch_mode(const struct option *opt __used, const char *str __used, int unset)
 517 {
 518         sort__branch_mode = !unset;
 519         return 0;
 520 }
 521
 522 int cmd_report(int argc, const char **argv, const char *prefix __used)
 523 {
 524         struct perf_session *session;
 525         struct stat st;
 526         bool has_br_stack = false;
 527         int ret = -1;
 528         char callchain_default_opt[] = "fractal,0.5,callee";
 529         const char * const report_usage[] = {
 530                 "perf report [<options>]",
 531                 NULL
 532         };
 533         struct perf_report report = {
 534                 .tool = {
 535                         .sample          = process_sample_event,
 536                         .mmap            = perf_event__process_mmap,
 537                         .comm            = perf_event__process_comm,
 538                         .exit            = perf_event__process_task,
 539                         .fork            = perf_event__process_task,
 540                         .lost            = perf_event__process_lost,
 541                         .read            = process_read_event,
 542                         .attr            = perf_event__process_attr,
 543                         .event_type      = perf_event__process_event_type,
 544                         .tracing_data    = perf_event__process_tracing_data,
 545                         .build_id        = perf_event__process_build_id,
 546                         .ordered_samples = true,
 547                         .ordering_requires_timestamps = true,
 548                 },
 549                 .pretty_printing_style   = "normal",
 550         };
 551         const struct option options[] = {
 552         OPT_STRING('i', "input", &report.input_name, "file",
 553                     "input file name"),
 554         OPT_INCR('v', "verbose", &verbose,
 555                     "be more verbose (show symbol address, etc)"),
 556         OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
 557                     "dump raw trace in ASCII"),
 558         OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
 559                    "file", "vmlinux pathname"),
 560         OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
 561                    "file", "kallsyms pathname"),
 562         OPT_BOOLEAN('f', "force", &report.force, "don't complain, do it"),
 563         OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
 564                     "load module symbols - WARNING: use only with -k and LIVE kernel"),
 565         OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
 566                     "Show a column with the number of samples"),
 567         OPT_BOOLEAN('T', "threads", &report.show_threads,
 568                     "Show per-thread event counters"),
 569         OPT_STRING(0, "pretty", &report.pretty_printing_style, "key",
 570                    "pretty printing style key: normal raw"),
 571         OPT_BOOLEAN(0, "tui", &report.use_tui, "Use the TUI interface"),
 572         OPT_BOOLEAN(0, "stdio", &report.use_stdio,
 573                     "Use the stdio interface"),
 574         OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
 575                    "sort by key(s): pid, comm, dso, symbol, parent, dso_to,"
 576                    " dso_from, symbol_to, symbol_from, mispredict"),
 577         OPT_BOOLEAN(0, "showcpuutilization", &symbol_conf.show_cpu_utilization,
 578                     "Show sample percentage for different cpu modes"),
 579         OPT_STRING('p', "parent", &parent_pattern, "regex",
 580                    "regex filter to identify parent, see: '--sort parent'"),
 581         OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other,
 582                     "Only display entries with parent-match"),
 583         OPT_CALLBACK_DEFAULT('g', "call-graph", &report, "output_type,min_percent[,print_limit],call_order",
 584                      "Display callchains using output_type (graph, flat, fractal, or none) , min percent threshold, optional print limit and callchain order. "
 585                      "Default: fractal,0.5,callee", &parse_callchain_opt, callchain_default_opt),
 586         OPT_BOOLEAN('G', "inverted", &report.inverted_callchain,
 587                     "alias for inverted call graph"),
 588         OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
 589                    "only consider symbols in these dsos"),
 590         OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
 591                    "only consider symbols in these comms"),
 592         OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
 593                    "only consider these symbols"),
 594         OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str,
 595                    "width[,width...]",
 596                    "don't try to adjust column width, use these fixed values"),
 597         OPT_STRING('t', "field-separator", &symbol_conf.field_sep, "separator",
 598                    "separator for columns, no spaces will be added between "
 599                    "columns '.' is reserved."),
 600         OPT_BOOLEAN('U', "hide-unresolved", &report.hide_unresolved,
 601                     "Only display entries resolved to a symbol"),
 602         OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
 603                     "Look for files with symbols relative to this directory"),
 604         OPT_STRING('C', "cpu", &report.cpu_list, "cpu",
 605                    "list of cpus to profile"),
 606         OPT_BOOLEAN('I', "show-info", &report.show_full_info,
 607                     "Display extended information about perf.data file"),
 608         OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src,
 609                     "Interleave source code with assembly code (default)"),
 610         OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw,
 611                     "Display raw encoding of assembly instructions (default)"),
 612         OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style",
 613                    "Specify disassembler style (e.g. -M intel for intel syntax)"),
 614         OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,
 615                     "Show a column with the sum of periods"),
 616         OPT_CALLBACK_NOOPT('b', "branch-stack", &sort__branch_mode, "",
 617                     "use branch records for histogram filling", parse_branch_mode),
 618         OPT_END()
 619         };
 620
 621         argc = parse_options(argc, argv, options, report_usage, 0);
 622
 623         if (report.use_stdio)
 624                 use_browser = 0;
 625         else if (report.use_tui)
 626                 use_browser = 1;
 627
 628         if (report.inverted_callchain)
 629                 callchain_param.order = ORDER_CALLER;
 630
 631         if (!report.input_name || !strlen(report.input_name)) {
 632                 if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
 633                         report.input_name = "-";
 634                 else
 635                         report.input_name = "perf.data";
 636         }
 637         session = perf_session__new(report.input_name, O_RDONLY,
 638                                     report.force, false, &report.tool);
 639         if (session == NULL)
 640                 return -ENOMEM;
 641
 642         report.session = session;
 643
 644         has_br_stack = perf_header__has_feat(&session->header,
 645                                              HEADER_BRANCH_STACK);
 646
 647         if (sort__branch_mode == -1 && has_br_stack)
 648                 sort__branch_mode = 1;
 649
 650         /* sort__branch_mode could be 0 if --no-branch-stack */
 651         if (sort__branch_mode == 1) {
 652                 /*
 653                  * if no sort_order is provided, then specify
 654                  * branch-mode specific order
 655                  */
 656                 if (sort_order == default_sort_order)
 657                         sort_order = "comm,dso_from,symbol_from,"
 658                                      "dso_to,symbol_to";
 659
 660         }
 661
 662         if (strcmp(report.input_name, "-") != 0) {
 663                 setup_browser(true);
 664         } else {
 665                 use_browser = 0;
 666         }
 667
 668         /*
 669          * Only in the newt browser we are doing integrated annotation,
 670          * so don't allocate extra space that won't be used in the stdio
 671          * implementation.
 672          */
 673         if (use_browser > 0) {
 674                 symbol_conf.priv_size = sizeof(struct annotation);
 675                 report.annotate_init  = symbol__annotate_init;
 676                 /*
 677                  * For searching by name on the "Browse map details".
 678                  * providing it only in verbose mode not to bloat too
 679                  * much struct symbol.
 680                  */
 681                 if (verbose) {
 682                         /*
 683                          * XXX: Need to provide a less kludgy way to ask for
 684                          * more space per symbol, the u32 is for the index on
 685                          * the ui browser.
 686                          * See symbol__browser_index.
 687                          */
 688                         symbol_conf.priv_size += sizeof(u32);
 689                         symbol_conf.sort_by_name = true;
 690                 }
 691         }
 692
 693         if (symbol__init() < 0)
 694                 goto error;
 695
 696         setup_sorting(report_usage, options);
 697
 698         if (parent_pattern != default_parent_pattern) {
 699                 if (sort_dimension__add("parent") < 0)
 700                         goto error;
 701
 702                 /*
 703                  * Only show the parent fields if we explicitly
 704                  * sort that way. If we only use parent machinery
 705                  * for filtering, we don't want it.
 706                  */
 707                 if (!strstr(sort_order, "parent"))
 708                         sort_parent.elide = 1;
 709         } else
 710                 symbol_conf.exclude_other = false;
 711
 712         /*
 713          * Any (unrecognized) arguments left?
 714          */
 715         if (argc)
 716                 usage_with_options(report_usage, options);
 717
 718         sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", stdout);
 719
 720         if (sort__branch_mode == 1) {
 721                 sort_entry__setup_elide(&sort_dso_from, symbol_conf.dso_from_list, "dso_from", stdout);
 722                 sort_entry__setup_elide(&sort_dso_to, symbol_conf.dso_to_list, "dso_to", stdout);
 723                 sort_entry__setup_elide(&sort_sym_from, symbol_conf.sym_from_list, "sym_from", stdout);
 724                 sort_entry__setup_elide(&sort_sym_to, symbol_conf.sym_to_list, "sym_to", stdout);
 725         } else {
 726                 sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso", stdout);
 727                 sort_entry__setup_elide(&sort_sym, symbol_conf.sym_list, "symbol", stdout);
 728         }
 729
 730         ret = __cmd_report(&report);
 731 error:
 732         perf_session__delete(session);
 733         return ret;
 734 }