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TOMOYO Linux Cross Reference
Linux/tools/perf/builtin-report.c

Version: ~ [ linux-5.12-rc7 ] ~ [ linux-5.11.13 ] ~ [ linux-5.10.29 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.111 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.186 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.230 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.266 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.266 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.18.140 ] ~ [ linux-3.16.85 ] ~ [ linux-3.14.79 ] ~ [ linux-3.12.74 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

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

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