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 #include "util/cache.h"
  12
  13 #include "util/annotate.h"
  14 #include "util/color.h"
  15 #include <linux/list.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 #include "util/data.h"
  37 #include "arch/common.h"
  38
  39 #include <dlfcn.h>
  40 #include <linux/bitmap.h>
  41
  42 struct report {
  43         struct perf_tool        tool;
  44         struct perf_session     *session;
  45         bool                    force, use_tui, use_gtk, use_stdio;
  46         bool                    hide_unresolved;
  47         bool                    dont_use_callchains;
  48         bool                    show_full_info;
  49         bool                    show_threads;
  50         bool                    inverted_callchain;
  51         bool                    mem_mode;
  52         bool                    header;
  53         bool                    header_only;
  54         int                     max_stack;
  55         struct perf_read_values show_threads_values;
  56         const char              *pretty_printing_style;
  57         const char              *cpu_list;
  58         const char              *symbol_filter_str;
  59         float                   min_percent;
  60         u64                     nr_entries;
  61         DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
  62 };
  63
  64 static int report__config(const char *var, const char *value, void *cb)
  65 {
  66         if (!strcmp(var, "report.group")) {
  67                 symbol_conf.event_group = perf_config_bool(var, value);
  68                 return 0;
  69         }
  70         if (!strcmp(var, "report.percent-limit")) {
  71                 struct report *rep = cb;
  72                 rep->min_percent = strtof(value, NULL);
  73                 return 0;
  74         }
  75         if (!strcmp(var, "report.children")) {
  76                 symbol_conf.cumulate_callchain = perf_config_bool(var, value);
  77                 return 0;
  78         }
  79
  80         return perf_default_config(var, value, cb);
  81 }
  82
  83 static void report__inc_stats(struct report *rep, struct hist_entry *he)
  84 {
  85         /*
  86          * The @he is either of a newly created one or an existing one
  87          * merging current sample.  We only want to count a new one so
  88          * checking ->nr_events being 1.
  89          */
  90         if (he->stat.nr_events == 1)
  91                 rep->nr_entries++;
  92 }
  93
  94 static int hist_iter__report_callback(struct hist_entry_iter *iter,
  95                                       struct addr_location *al, bool single,
  96                                       void *arg)
  97 {
  98         int err = 0;
  99         struct report *rep = arg;
 100         struct hist_entry *he = iter->he;
 101         struct perf_evsel *evsel = iter->evsel;
 102         struct mem_info *mi;
 103         struct branch_info *bi;
 104
 105         report__inc_stats(rep, he);
 106
 107         if (!ui__has_annotation())
 108                 return 0;
 109
 110         if (sort__mode == SORT_MODE__BRANCH) {
 111                 bi = he->branch_info;
 112                 err = addr_map_symbol__inc_samples(&bi->from, evsel->idx);
 113                 if (err)
 114                         goto out;
 115
 116                 err = addr_map_symbol__inc_samples(&bi->to, evsel->idx);
 117
 118         } else if (rep->mem_mode) {
 119                 mi = he->mem_info;
 120                 err = addr_map_symbol__inc_samples(&mi->daddr, evsel->idx);
 121                 if (err)
 122                         goto out;
 123
 124                 err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr);
 125
 126         } else if (symbol_conf.cumulate_callchain) {
 127                 if (single)
 128                         err = hist_entry__inc_addr_samples(he, evsel->idx,
 129                                                            al->addr);
 130         } else {
 131                 err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr);
 132         }
 133
 134 out:
 135         return err;
 136 }
 137
 138 static int process_sample_event(struct perf_tool *tool,
 139                                 union perf_event *event,
 140                                 struct perf_sample *sample,
 141                                 struct perf_evsel *evsel,
 142                                 struct machine *machine)
 143 {
 144         struct report *rep = container_of(tool, struct report, tool);
 145         struct addr_location al;
 146         struct hist_entry_iter iter = {
 147                 .hide_unresolved = rep->hide_unresolved,
 148                 .add_entry_cb = hist_iter__report_callback,
 149         };
 150         int ret;
 151
 152         if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) {
 153                 pr_debug("problem processing %d event, skipping it.\n",
 154                          event->header.type);
 155                 return -1;
 156         }
 157
 158         if (rep->hide_unresolved && al.sym == NULL)
 159                 return 0;
 160
 161         if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap))
 162                 return 0;
 163
 164         if (sort__mode == SORT_MODE__BRANCH)
 165                 iter.ops = &hist_iter_branch;
 166         else if (rep->mem_mode)
 167                 iter.ops = &hist_iter_mem;
 168         else if (symbol_conf.cumulate_callchain)
 169                 iter.ops = &hist_iter_cumulative;
 170         else
 171                 iter.ops = &hist_iter_normal;
 172
 173         if (al.map != NULL)
 174                 al.map->dso->hit = 1;
 175
 176         ret = hist_entry_iter__add(&iter, &al, evsel, sample, rep->max_stack,
 177                                    rep);
 178         if (ret < 0)
 179                 pr_debug("problem adding hist entry, skipping event\n");
 180
 181         return ret;
 182 }
 183
 184 static int process_read_event(struct perf_tool *tool,
 185                               union perf_event *event,
 186                               struct perf_sample *sample __maybe_unused,
 187                               struct perf_evsel *evsel,
 188                               struct machine *machine __maybe_unused)
 189 {
 190         struct report *rep = container_of(tool, struct report, tool);
 191
 192         if (rep->show_threads) {
 193                 const char *name = evsel ? perf_evsel__name(evsel) : "unknown";
 194                 perf_read_values_add_value(&rep->show_threads_values,
 195                                            event->read.pid, event->read.tid,
 196                                            event->read.id,
 197                                            name,
 198                                            event->read.value);
 199         }
 200
 201         dump_printf(": %d %d %s %" PRIu64 "\n", event->read.pid, event->read.tid,
 202                     evsel ? perf_evsel__name(evsel) : "FAIL",
 203                     event->read.value);
 204
 205         return 0;
 206 }
 207
 208 /* For pipe mode, sample_type is not currently set */
 209 static int report__setup_sample_type(struct report *rep)
 210 {
 211         struct perf_session *session = rep->session;
 212         u64 sample_type = perf_evlist__combined_sample_type(session->evlist);
 213         bool is_pipe = perf_data_file__is_pipe(session->file);
 214
 215         if (!is_pipe && !(sample_type & PERF_SAMPLE_CALLCHAIN)) {
 216                 if (sort__has_parent) {
 217                         ui__error("Selected --sort parent, but no "
 218                                     "callchain data. Did you call "
 219                                     "'perf record' without -g?\n");
 220                         return -EINVAL;
 221                 }
 222                 if (symbol_conf.use_callchain) {
 223                         ui__error("Selected -g but no callchain data. Did "
 224                                     "you call 'perf record' without -g?\n");
 225                         return -1;
 226                 }
 227         } else if (!rep->dont_use_callchains &&
 228                    callchain_param.mode != CHAIN_NONE &&
 229                    !symbol_conf.use_callchain) {
 230                         symbol_conf.use_callchain = true;
 231                         if (callchain_register_param(&callchain_param) < 0) {
 232                                 ui__error("Can't register callchain params.\n");
 233                                 return -EINVAL;
 234                         }
 235         }
 236
 237         if (symbol_conf.cumulate_callchain) {
 238                 /* Silently ignore if callchain is missing */
 239                 if (!(sample_type & PERF_SAMPLE_CALLCHAIN)) {
 240                         symbol_conf.cumulate_callchain = false;
 241                         perf_hpp__cancel_cumulate();
 242                 }
 243         }
 244
 245         if (sort__mode == SORT_MODE__BRANCH) {
 246                 if (!is_pipe &&
 247                     !(sample_type & PERF_SAMPLE_BRANCH_STACK)) {
 248                         ui__error("Selected -b but no branch data. "
 249                                   "Did you call perf record without -b?\n");
 250                         return -1;
 251                 }
 252         }
 253
 254         return 0;
 255 }
 256
 257 static void sig_handler(int sig __maybe_unused)
 258 {
 259         session_done = 1;
 260 }
 261
 262 static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report *rep,
 263                                               const char *evname, FILE *fp)
 264 {
 265         size_t ret;
 266         char unit;
 267         unsigned long nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE];
 268         u64 nr_events = hists->stats.total_period;
 269         struct perf_evsel *evsel = hists_to_evsel(hists);
 270         char buf[512];
 271         size_t size = sizeof(buf);
 272
 273         if (symbol_conf.filter_relative) {
 274                 nr_samples = hists->stats.nr_non_filtered_samples;
 275                 nr_events = hists->stats.total_non_filtered_period;
 276         }
 277
 278         if (perf_evsel__is_group_event(evsel)) {
 279                 struct perf_evsel *pos;
 280
 281                 perf_evsel__group_desc(evsel, buf, size);
 282                 evname = buf;
 283
 284                 for_each_group_member(pos, evsel) {
 285                         if (symbol_conf.filter_relative) {
 286                                 nr_samples += pos->hists.stats.nr_non_filtered_samples;
 287                                 nr_events += pos->hists.stats.total_non_filtered_period;
 288                         } else {
 289                                 nr_samples += pos->hists.stats.nr_events[PERF_RECORD_SAMPLE];
 290                                 nr_events += pos->hists.stats.total_period;
 291                         }
 292                 }
 293         }
 294
 295         nr_samples = convert_unit(nr_samples, &unit);
 296         ret = fprintf(fp, "# Samples: %lu%c", nr_samples, unit);
 297         if (evname != NULL)
 298                 ret += fprintf(fp, " of event '%s'", evname);
 299
 300         if (rep->mem_mode) {
 301                 ret += fprintf(fp, "\n# Total weight : %" PRIu64, nr_events);
 302                 ret += fprintf(fp, "\n# Sort order   : %s", sort_order);
 303         } else
 304                 ret += fprintf(fp, "\n# Event count (approx.): %" PRIu64, nr_events);
 305         return ret + fprintf(fp, "\n#\n");
 306 }
 307
 308 static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist,
 309                                          struct report *rep,
 310                                          const char *help)
 311 {
 312         struct perf_evsel *pos;
 313
 314         evlist__for_each(evlist, pos) {
 315                 struct hists *hists = &pos->hists;
 316                 const char *evname = perf_evsel__name(pos);
 317
 318                 if (symbol_conf.event_group &&
 319                     !perf_evsel__is_group_leader(pos))
 320                         continue;
 321
 322                 hists__fprintf_nr_sample_events(hists, rep, evname, stdout);
 323                 hists__fprintf(hists, true, 0, 0, rep->min_percent, stdout);
 324                 fprintf(stdout, "\n\n");
 325         }
 326
 327         if (sort_order == default_sort_order &&
 328             parent_pattern == default_parent_pattern) {
 329                 fprintf(stdout, "#\n# (%s)\n#\n", help);
 330
 331                 if (rep->show_threads) {
 332                         bool style = !strcmp(rep->pretty_printing_style, "raw");
 333                         perf_read_values_display(stdout, &rep->show_threads_values,
 334                                                  style);
 335                         perf_read_values_destroy(&rep->show_threads_values);
 336                 }
 337         }
 338
 339         return 0;
 340 }
 341
 342 static void report__warn_kptr_restrict(const struct report *rep)
 343 {
 344         struct map *kernel_map = rep->session->machines.host.vmlinux_maps[MAP__FUNCTION];
 345         struct kmap *kernel_kmap = map__kmap(kernel_map);
 346
 347         if (kernel_map == NULL ||
 348             (kernel_map->dso->hit &&
 349              (kernel_kmap->ref_reloc_sym == NULL ||
 350               kernel_kmap->ref_reloc_sym->addr == 0))) {
 351                 const char *desc =
 352                     "As no suitable kallsyms nor vmlinux was found, kernel samples\n"
 353                     "can't be resolved.";
 354
 355                 if (kernel_map) {
 356                         const struct dso *kdso = kernel_map->dso;
 357                         if (!RB_EMPTY_ROOT(&kdso->symbols[MAP__FUNCTION])) {
 358                                 desc = "If some relocation was applied (e.g. "
 359                                        "kexec) symbols may be misresolved.";
 360                         }
 361                 }
 362
 363                 ui__warning(
 364 "Kernel address maps (/proc/{kallsyms,modules}) were restricted.\n\n"
 365 "Check /proc/sys/kernel/kptr_restrict before running 'perf record'.\n\n%s\n\n"
 366 "Samples in kernel modules can't be resolved as well.\n\n",
 367                 desc);
 368         }
 369 }
 370
 371 static int report__gtk_browse_hists(struct report *rep, const char *help)
 372 {
 373         int (*hist_browser)(struct perf_evlist *evlist, const char *help,
 374                             struct hist_browser_timer *timer, float min_pcnt);
 375
 376         hist_browser = dlsym(perf_gtk_handle, "perf_evlist__gtk_browse_hists");
 377
 378         if (hist_browser == NULL) {
 379                 ui__error("GTK browser not found!\n");
 380                 return -1;
 381         }
 382
 383         return hist_browser(rep->session->evlist, help, NULL, rep->min_percent);
 384 }
 385
 386 static int report__browse_hists(struct report *rep)
 387 {
 388         int ret;
 389         struct perf_session *session = rep->session;
 390         struct perf_evlist *evlist = session->evlist;
 391         const char *help = "For a higher level overview, try: perf report --sort comm,dso";
 392
 393         switch (use_browser) {
 394         case 1:
 395                 ret = perf_evlist__tui_browse_hists(evlist, help, NULL,
 396                                                     rep->min_percent,
 397                                                     &session->header.env);
 398                 /*
 399                  * Usually "ret" is the last pressed key, and we only
 400                  * care if the key notifies us to switch data file.
 401                  */
 402                 if (ret != K_SWITCH_INPUT_DATA)
 403                         ret = 0;
 404                 break;
 405         case 2:
 406                 ret = report__gtk_browse_hists(rep, help);
 407                 break;
 408         default:
 409                 ret = perf_evlist__tty_browse_hists(evlist, rep, help);
 410                 break;
 411         }
 412
 413         return ret;
 414 }
 415
 416 static void report__collapse_hists(struct report *rep)
 417 {
 418         struct ui_progress prog;
 419         struct perf_evsel *pos;
 420
 421         ui_progress__init(&prog, rep->nr_entries, "Merging related events...");
 422
 423         evlist__for_each(rep->session->evlist, pos) {
 424                 struct hists *hists = &pos->hists;
 425
 426                 if (pos->idx == 0)
 427                         hists->symbol_filter_str = rep->symbol_filter_str;
 428
 429                 hists__collapse_resort(hists, &prog);
 430
 431                 /* Non-group events are considered as leader */
 432                 if (symbol_conf.event_group &&
 433                     !perf_evsel__is_group_leader(pos)) {
 434                         struct hists *leader_hists = &pos->leader->hists;
 435
 436                         hists__match(leader_hists, hists);
 437                         hists__link(leader_hists, hists);
 438                 }
 439         }
 440
 441         ui_progress__finish();
 442 }
 443
 444 static int __cmd_report(struct report *rep)
 445 {
 446         int ret;
 447         struct perf_session *session = rep->session;
 448         struct perf_evsel *pos;
 449         struct perf_data_file *file = session->file;
 450
 451         signal(SIGINT, sig_handler);
 452
 453         if (rep->cpu_list) {
 454                 ret = perf_session__cpu_bitmap(session, rep->cpu_list,
 455                                                rep->cpu_bitmap);
 456                 if (ret)
 457                         return ret;
 458         }
 459
 460         if (rep->show_threads)
 461                 perf_read_values_init(&rep->show_threads_values);
 462
 463         ret = report__setup_sample_type(rep);
 464         if (ret)
 465                 return ret;
 466
 467         ret = perf_session__process_events(session, &rep->tool);
 468         if (ret)
 469                 return ret;
 470
 471         report__warn_kptr_restrict(rep);
 472
 473         if (use_browser == 0) {
 474                 if (verbose > 3)
 475                         perf_session__fprintf(session, stdout);
 476
 477                 if (verbose > 2)
 478                         perf_session__fprintf_dsos(session, stdout);
 479
 480                 if (dump_trace) {
 481                         perf_session__fprintf_nr_events(session, stdout);
 482                         return 0;
 483                 }
 484         }
 485
 486         report__collapse_hists(rep);
 487
 488         if (session_done())
 489                 return 0;
 490
 491         if (rep->nr_entries == 0) {
 492                 ui__error("The %s file has no samples!\n", file->path);
 493                 return 0;
 494         }
 495
 496         evlist__for_each(session->evlist, pos)
 497                 hists__output_resort(&pos->hists);
 498
 499         return report__browse_hists(rep);
 500 }
 501
 502 static int
 503 report_parse_callchain_opt(const struct option *opt, const char *arg, int unset)
 504 {
 505         struct report *rep = (struct report *)opt->value;
 506
 507         /*
 508          * --no-call-graph
 509          */
 510         if (unset) {
 511                 rep->dont_use_callchains = true;
 512                 return 0;
 513         }
 514
 515         return parse_callchain_report_opt(arg);
 516 }
 517
 518 int
 519 report_parse_ignore_callees_opt(const struct option *opt __maybe_unused,
 520                                 const char *arg, int unset __maybe_unused)
 521 {
 522         if (arg) {
 523                 int err = regcomp(&ignore_callees_regex, arg, REG_EXTENDED);
 524                 if (err) {
 525                         char buf[BUFSIZ];
 526                         regerror(err, &ignore_callees_regex, buf, sizeof(buf));
 527                         pr_err("Invalid --ignore-callees regex: %s\n%s", arg, buf);
 528                         return -1;
 529                 }
 530                 have_ignore_callees = 1;
 531         }
 532
 533         return 0;
 534 }
 535
 536 static int
 537 parse_branch_mode(const struct option *opt __maybe_unused,
 538                   const char *str __maybe_unused, int unset)
 539 {
 540         int *branch_mode = opt->value;
 541
 542         *branch_mode = !unset;
 543         return 0;
 544 }
 545
 546 static int
 547 parse_percent_limit(const struct option *opt, const char *str,
 548                     int unset __maybe_unused)
 549 {
 550         struct report *rep = opt->value;
 551
 552         rep->min_percent = strtof(str, NULL);
 553         return 0;
 554 }
 555
 556 int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
 557 {
 558         struct perf_session *session;
 559         struct stat st;
 560         bool has_br_stack = false;
 561         int branch_mode = -1;
 562         int ret = -1;
 563         char callchain_default_opt[] = "fractal,0.5,callee";
 564         const char * const report_usage[] = {
 565                 "perf report [<options>]",
 566                 NULL
 567         };
 568         struct report report = {
 569                 .tool = {
 570                         .sample          = process_sample_event,
 571                         .mmap            = perf_event__process_mmap,
 572                         .mmap2           = perf_event__process_mmap2,
 573                         .comm            = perf_event__process_comm,
 574                         .exit            = perf_event__process_exit,
 575                         .fork            = perf_event__process_fork,
 576                         .lost            = perf_event__process_lost,
 577                         .read            = process_read_event,
 578                         .attr            = perf_event__process_attr,
 579                         .tracing_data    = perf_event__process_tracing_data,
 580                         .build_id        = perf_event__process_build_id,
 581                         .ordered_samples = true,
 582                         .ordering_requires_timestamps = true,
 583                 },
 584                 .max_stack               = PERF_MAX_STACK_DEPTH,
 585                 .pretty_printing_style   = "normal",
 586         };
 587         const struct option options[] = {
 588         OPT_STRING('i', "input", &input_name, "file",
 589                     "input file name"),
 590         OPT_INCR('v', "verbose", &verbose,
 591                     "be more verbose (show symbol address, etc)"),
 592         OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
 593                     "dump raw trace in ASCII"),
 594         OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
 595                    "file", "vmlinux pathname"),
 596         OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
 597                    "file", "kallsyms pathname"),
 598         OPT_BOOLEAN('f', "force", &report.force, "don't complain, do it"),
 599         OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
 600                     "load module symbols - WARNING: use only with -k and LIVE kernel"),
 601         OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
 602                     "Show a column with the number of samples"),
 603         OPT_BOOLEAN('T', "threads", &report.show_threads,
 604                     "Show per-thread event counters"),
 605         OPT_STRING(0, "pretty", &report.pretty_printing_style, "key",
 606                    "pretty printing style key: normal raw"),
 607         OPT_BOOLEAN(0, "tui", &report.use_tui, "Use the TUI interface"),
 608         OPT_BOOLEAN(0, "gtk", &report.use_gtk, "Use the GTK2 interface"),
 609         OPT_BOOLEAN(0, "stdio", &report.use_stdio,
 610                     "Use the stdio interface"),
 611         OPT_BOOLEAN(0, "header", &report.header, "Show data header."),
 612         OPT_BOOLEAN(0, "header-only", &report.header_only,
 613                     "Show only data header."),
 614         OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
 615                    "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..."
 616                    " Please refer the man page for the complete list."),
 617         OPT_STRING('F', "fields", &field_order, "key[,keys...]",
 618                    "output field(s): overhead, period, sample plus all of sort keys"),
 619         OPT_BOOLEAN(0, "showcpuutilization", &symbol_conf.show_cpu_utilization,
 620                     "Show sample percentage for different cpu modes"),
 621         OPT_STRING('p', "parent", &parent_pattern, "regex",
 622                    "regex filter to identify parent, see: '--sort parent'"),
 623         OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other,
 624                     "Only display entries with parent-match"),
 625         OPT_CALLBACK_DEFAULT('g', "call-graph", &report, "output_type,min_percent[,print_limit],call_order",
 626                      "Display callchains using output_type (graph, flat, fractal, or none) , min percent threshold, optional print limit, callchain order, key (function or address). "
 627                      "Default: fractal,0.5,callee,function", &report_parse_callchain_opt, callchain_default_opt),
 628         OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain,
 629                     "Accumulate callchains of children and show total overhead as well"),
 630         OPT_INTEGER(0, "max-stack", &report.max_stack,
 631                     "Set the maximum stack depth when parsing the callchain, "
 632                     "anything beyond the specified depth will be ignored. "
 633                     "Default: " __stringify(PERF_MAX_STACK_DEPTH)),
 634         OPT_BOOLEAN('G', "inverted", &report.inverted_callchain,
 635                     "alias for inverted call graph"),
 636         OPT_CALLBACK(0, "ignore-callees", NULL, "regex",
 637                    "ignore callees of these functions in call graphs",
 638                    report_parse_ignore_callees_opt),
 639         OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
 640                    "only consider symbols in these dsos"),
 641         OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
 642                    "only consider symbols in these comms"),
 643         OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
 644                    "only consider these symbols"),
 645         OPT_STRING(0, "symbol-filter", &report.symbol_filter_str, "filter",
 646                    "only show symbols that (partially) match with this filter"),
 647         OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str,
 648                    "width[,width...]",
 649                    "don't try to adjust column width, use these fixed values"),
 650         OPT_STRING('t', "field-separator", &symbol_conf.field_sep, "separator",
 651                    "separator for columns, no spaces will be added between "
 652                    "columns '.' is reserved."),
 653         OPT_BOOLEAN('U', "hide-unresolved", &report.hide_unresolved,
 654                     "Only display entries resolved to a symbol"),
 655         OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
 656                     "Look for files with symbols relative to this directory"),
 657         OPT_STRING('C', "cpu", &report.cpu_list, "cpu",
 658                    "list of cpus to profile"),
 659         OPT_BOOLEAN('I', "show-info", &report.show_full_info,
 660                     "Display extended information about perf.data file"),
 661         OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src,
 662                     "Interleave source code with assembly code (default)"),
 663         OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw,
 664                     "Display raw encoding of assembly instructions (default)"),
 665         OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style",
 666                    "Specify disassembler style (e.g. -M intel for intel syntax)"),
 667         OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,
 668                     "Show a column with the sum of periods"),
 669         OPT_BOOLEAN(0, "group", &symbol_conf.event_group,
 670                     "Show event group information together"),
 671         OPT_CALLBACK_NOOPT('b', "branch-stack", &branch_mode, "",
 672                     "use branch records for histogram filling", parse_branch_mode),
 673         OPT_STRING(0, "objdump", &objdump_path, "path",
 674                    "objdump binary to use for disassembly and annotations"),
 675         OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
 676                     "Disable symbol demangling"),
 677         OPT_BOOLEAN(0, "mem-mode", &report.mem_mode, "mem access profile"),
 678         OPT_CALLBACK(0, "percent-limit", &report, "percent",
 679                      "Don't show entries under that percent", parse_percent_limit),
 680         OPT_CALLBACK(0, "percentage", NULL, "relative|absolute",
 681                      "how to display percentage of filtered entries", parse_filter_percentage),
 682         OPT_END()
 683         };
 684         struct perf_data_file file = {
 685                 .mode  = PERF_DATA_MODE_READ,
 686         };
 687
 688         perf_config(report__config, &report);
 689
 690         argc = parse_options(argc, argv, options, report_usage, 0);
 691
 692         if (report.use_stdio)
 693                 use_browser = 0;
 694         else if (report.use_tui)
 695                 use_browser = 1;
 696         else if (report.use_gtk)
 697                 use_browser = 2;
 698
 699         if (report.inverted_callchain)
 700                 callchain_param.order = ORDER_CALLER;
 701
 702         if (!input_name || !strlen(input_name)) {
 703                 if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
 704                         input_name = "-";
 705                 else
 706                         input_name = "perf.data";
 707         }
 708
 709         file.path  = input_name;
 710         file.force = report.force;
 711
 712 repeat:
 713         session = perf_session__new(&file, false, &report.tool);
 714         if (session == NULL)
 715                 return -ENOMEM;
 716
 717         report.session = session;
 718
 719         has_br_stack = perf_header__has_feat(&session->header,
 720                                              HEADER_BRANCH_STACK);
 721
 722         if (branch_mode == -1 && has_br_stack) {
 723                 sort__mode = SORT_MODE__BRANCH;
 724                 symbol_conf.cumulate_callchain = false;
 725         }
 726
 727         if (report.mem_mode) {
 728                 if (sort__mode == SORT_MODE__BRANCH) {
 729                         pr_err("branch and mem mode incompatible\n");
 730                         goto error;
 731                 }
 732                 sort__mode = SORT_MODE__MEMORY;
 733                 symbol_conf.cumulate_callchain = false;
 734         }
 735
 736         if (setup_sorting() < 0) {
 737                 if (sort_order)
 738                         parse_options_usage(report_usage, options, "s", 1);
 739                 if (field_order)
 740                         parse_options_usage(sort_order ? NULL : report_usage,
 741                                             options, "F", 1);
 742                 goto error;
 743         }
 744
 745         /* Force tty output for header output. */
 746         if (report.header || report.header_only)
 747                 use_browser = 0;
 748
 749         if (strcmp(input_name, "-") != 0)
 750                 setup_browser(true);
 751         else
 752                 use_browser = 0;
 753
 754         if (report.header || report.header_only) {
 755                 perf_session__fprintf_info(session, stdout,
 756                                            report.show_full_info);
 757                 if (report.header_only)
 758                         return 0;
 759         } else if (use_browser == 0) {
 760                 fputs("# To display the perf.data header info, please use --header/--header-only options.\n#\n",
 761                       stdout);
 762         }
 763
 764         /*
 765          * Only in the TUI browser we are doing integrated annotation,
 766          * so don't allocate extra space that won't be used in the stdio
 767          * implementation.
 768          */
 769         if (ui__has_annotation()) {
 770                 symbol_conf.priv_size = sizeof(struct annotation);
 771                 machines__set_symbol_filter(&session->machines,
 772                                             symbol__annotate_init);
 773                 /*
 774                  * For searching by name on the "Browse map details".
 775                  * providing it only in verbose mode not to bloat too
 776                  * much struct symbol.
 777                  */
 778                 if (verbose) {
 779                         /*
 780                          * XXX: Need to provide a less kludgy way to ask for
 781                          * more space per symbol, the u32 is for the index on
 782                          * the ui browser.
 783                          * See symbol__browser_index.
 784                          */
 785                         symbol_conf.priv_size += sizeof(u32);
 786                         symbol_conf.sort_by_name = true;
 787                 }
 788         }
 789
 790         if (symbol__init() < 0)
 791                 goto error;
 792
 793         if (argc) {
 794                 /*
 795                  * Special case: if there's an argument left then assume that
 796                  * it's a symbol filter:
 797                  */
 798                 if (argc > 1)
 799                         usage_with_options(report_usage, options);
 800
 801                 report.symbol_filter_str = argv[0];
 802         }
 803
 804         sort__setup_elide(stdout);
 805
 806         ret = __cmd_report(&report);
 807         if (ret == K_SWITCH_INPUT_DATA) {
 808                 perf_session__delete(session);
 809                 goto repeat;
 810         } else
 811                 ret = 0;
 812
 813 error:
 814         perf_session__delete(session);
 815         return ret;
 816 }