?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[linux-2.6/btrfs-unstable.git] / tools / perf / builtin-report.c
blob76e12bcd17654a3185fdeeb88ab9a56b7e10c6ee
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 .feature = process_feature_event,
985 .ordered_events = true,
986 .ordering_requires_timestamps = true,
987 },
988 .max_stack = PERF_MAX_STACK_DEPTH,
989 .pretty_printing_style = "normal",
990 .socket_filter = -1,
991 .annotation_opts = annotation__default_options,
992 };
993 const struct option options[] = {
994 OPT_STRING('i', "input", &input_name, "file",
995 "input file name"),
996 OPT_INCR('v', "verbose", &verbose,
997 "be more verbose (show symbol address, etc)"),
998 OPT_BOOLEAN('q', "quiet", &quiet, "Do not show any message"),
999 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
1000 "dump raw trace in ASCII"),
1001 OPT_BOOLEAN(0, "stats", &report.stats_mode, "Display event stats"),
1002 OPT_BOOLEAN(0, "tasks", &report.tasks_mode, "Display recorded tasks"),
1003 OPT_BOOLEAN(0, "mmaps", &report.mmaps_mode, "Display recorded tasks memory maps"),
1004 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
1005 "file", "vmlinux pathname"),
1006 OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux,
1007 "don't load vmlinux even if found"),
1008 OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
1009 "file", "kallsyms pathname"),
1010 OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"),
1011 OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
1012 "load module symbols - WARNING: use only with -k and LIVE kernel"),
1013 OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
1014 "Show a column with the number of samples"),
1015 OPT_BOOLEAN('T', "threads", &report.show_threads,
1016 "Show per-thread event counters"),
1017 OPT_STRING(0, "pretty", &report.pretty_printing_style, "key",
1018 "pretty printing style key: normal raw"),
1019 OPT_BOOLEAN(0, "tui", &report.use_tui, "Use the TUI interface"),
1020 OPT_BOOLEAN(0, "gtk", &report.use_gtk, "Use the GTK2 interface"),
1021 OPT_BOOLEAN(0, "stdio", &report.use_stdio,
1022 "Use the stdio interface"),
1023 OPT_BOOLEAN(0, "header", &report.header, "Show data header."),
1024 OPT_BOOLEAN(0, "header-only", &report.header_only,
1025 "Show only data header."),
1026 OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
1027 "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..."
1028 " Please refer the man page for the complete list."),
1029 OPT_STRING('F', "fields", &field_order, "key[,keys...]",
1030 "output field(s): overhead, period, sample plus all of sort keys"),
1031 OPT_BOOLEAN(0, "show-cpu-utilization", &symbol_conf.show_cpu_utilization,
1032 "Show sample percentage for different cpu modes"),
1033 OPT_BOOLEAN_FLAG(0, "showcpuutilization", &symbol_conf.show_cpu_utilization,
1034 "Show sample percentage for different cpu modes", PARSE_OPT_HIDDEN),
1035 OPT_STRING('p', "parent", &parent_pattern, "regex",
1036 "regex filter to identify parent, see: '--sort parent'"),
1037 OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other,
1038 "Only display entries with parent-match"),
1039 OPT_CALLBACK_DEFAULT('g', "call-graph", &callchain_param,
1040 "print_type,threshold[,print_limit],order,sort_key[,branch],value",
1041 report_callchain_help, &report_parse_callchain_opt,
1042 callchain_default_opt),
1043 OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain,
1044 "Accumulate callchains of children and show total overhead as well"),
1045 OPT_INTEGER(0, "max-stack", &report.max_stack,
1046 "Set the maximum stack depth when parsing the callchain, "
1047 "anything beyond the specified depth will be ignored. "
1048 "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)),
1049 OPT_BOOLEAN('G', "inverted", &report.inverted_callchain,
1050 "alias for inverted call graph"),
1051 OPT_CALLBACK(0, "ignore-callees", NULL, "regex",
1052 "ignore callees of these functions in call graphs",
1053 report_parse_ignore_callees_opt),
1054 OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
1055 "only consider symbols in these dsos"),
1056 OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
1057 "only consider symbols in these comms"),
1058 OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]",
1059 "only consider symbols in these pids"),
1060 OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]",
1061 "only consider symbols in these tids"),
1062 OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
1063 "only consider these symbols"),
1064 OPT_STRING(0, "symbol-filter", &report.symbol_filter_str, "filter",
1065 "only show symbols that (partially) match with this filter"),
1066 OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str,
1067 "width[,width...]",
1068 "don't try to adjust column width, use these fixed values"),
1069 OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf.field_sep, "separator",
1070 "separator for columns, no spaces will be added between "
1071 "columns '.' is reserved."),
1072 OPT_BOOLEAN('U', "hide-unresolved", &symbol_conf.hide_unresolved,
1073 "Only display entries resolved to a symbol"),
1074 OPT_CALLBACK(0, "symfs", NULL, "directory",
1075 "Look for files with symbols relative to this directory",
1076 symbol__config_symfs),
1077 OPT_STRING('C', "cpu", &report.cpu_list, "cpu",
1078 "list of cpus to profile"),
1079 OPT_BOOLEAN('I', "show-info", &report.show_full_info,
1080 "Display extended information about perf.data file"),
1081 OPT_BOOLEAN(0, "source", &report.annotation_opts.annotate_src,
1082 "Interleave source code with assembly code (default)"),
1083 OPT_BOOLEAN(0, "asm-raw", &report.annotation_opts.show_asm_raw,
1084 "Display raw encoding of assembly instructions (default)"),
1085 OPT_STRING('M', "disassembler-style", &report.annotation_opts.disassembler_style, "disassembler style",
1086 "Specify disassembler style (e.g. -M intel for intel syntax)"),
1087 OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,
1088 "Show a column with the sum of periods"),
1089 OPT_BOOLEAN_SET(0, "group", &symbol_conf.event_group, &report.group_set,
1090 "Show event group information together"),
1091 OPT_CALLBACK_NOOPT('b', "branch-stack", &branch_mode, "",
1092 "use branch records for per branch histogram filling",
1093 parse_branch_mode),
1094 OPT_BOOLEAN(0, "branch-history", &branch_call_mode,
1095 "add last branch records to call history"),
1096 OPT_STRING(0, "objdump", &report.annotation_opts.objdump_path, "path",
1097 "objdump binary to use for disassembly and annotations"),
1098 OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
1099 "Disable symbol demangling"),
1100 OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel,
1101 "Enable kernel symbol demangling"),
1102 OPT_BOOLEAN(0, "mem-mode", &report.mem_mode, "mem access profile"),
1103 OPT_CALLBACK(0, "percent-limit", &report, "percent",
1104 "Don't show entries under that percent", parse_percent_limit),
1105 OPT_CALLBACK(0, "percentage", NULL, "relative|absolute",
1106 "how to display percentage of filtered entries", parse_filter_percentage),
1107 OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts",
1108 "Instruction Tracing options",
1109 itrace_parse_synth_opts),
1110 OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename,
1111 "Show full source file name path for source lines"),
1112 OPT_BOOLEAN(0, "show-ref-call-graph", &symbol_conf.show_ref_callgraph,
1113 "Show callgraph from reference event"),
1114 OPT_INTEGER(0, "socket-filter", &report.socket_filter,
1115 "only show processor socket that match with this filter"),
1116 OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace,
1117 "Show raw trace event output (do not use print fmt or plugins)"),
1118 OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy,
1119 "Show entries in a hierarchy"),
1120 OPT_CALLBACK_DEFAULT(0, "stdio-color", NULL, "mode",
1121 "'always' (default), 'never' or 'auto' only applicable to --stdio mode",
1122 stdio__config_color, "always"),
1123 OPT_STRING(0, "time", &report.time_str, "str",
1124 "Time span of interest (start,stop)"),
1125 OPT_BOOLEAN(0, "inline", &symbol_conf.inline_name,
1126 "Show inline function"),
1127 OPT_CALLBACK(0, "percent-type", &report.annotation_opts, "local-period",
1128 "Set percent type local/global-period/hits",
1129 annotate_parse_percent_type),
1130 OPT_END()
1131 };
1132 struct perf_data data = {
1133 .mode = PERF_DATA_MODE_READ,
1134 };
1135 int ret = hists__init();
1136
1137 if (ret < 0)
1138 return ret;
1139
1140 ret = perf_config(report__config, &report);
1141 if (ret)
1142 return ret;
1143
1144 argc = parse_options(argc, argv, options, report_usage, 0);
1145 if (argc) {
1146 /*
1147 * Special case: if there's an argument left then assume that
1148 * it's a symbol filter:
1149 */
1150 if (argc > 1)
1151 usage_with_options(report_usage, options);
1152
1153 report.symbol_filter_str = argv[0];
1154 }
1155
1156 if (report.mmaps_mode)
1157 report.tasks_mode = true;
1158
1159 if (quiet)
1160 perf_quiet_option();
1161
1162 if (symbol_conf.vmlinux_name &&
1163 access(symbol_conf.vmlinux_name, R_OK)) {
1164 pr_err("Invalid file: %s\n", symbol_conf.vmlinux_name);
1165 return -EINVAL;
1166 }
1167 if (symbol_conf.kallsyms_name &&
1168 access(symbol_conf.kallsyms_name, R_OK)) {
1169 pr_err("Invalid file: %s\n", symbol_conf.kallsyms_name);
1170 return -EINVAL;
1171 }
1172
1173 if (report.inverted_callchain)
1174 callchain_param.order = ORDER_CALLER;
1175 if (symbol_conf.cumulate_callchain && !callchain_param.order_set)
1176 callchain_param.order = ORDER_CALLER;
1177
1178 if (itrace_synth_opts.callchain &&
1179 (int)itrace_synth_opts.callchain_sz > report.max_stack)
1180 report.max_stack = itrace_synth_opts.callchain_sz;
1181
1182 if (!input_name || !strlen(input_name)) {
1183 if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
1184 input_name = "-";
1185 else
1186 input_name = "perf.data";
1187 }
1188
1189 data.file.path = input_name;
1190 data.force = symbol_conf.force;
1191
1192 repeat:
1193 session = perf_session__new(&data, false, &report.tool);
1194 if (session == NULL)
1195 return -1;
1196
1197 if (report.queue_size) {
1198 ordered_events__set_alloc_size(&session->ordered_events,
1199 report.queue_size);
1200 }
1201
1202 session->itrace_synth_opts = &itrace_synth_opts;
1203
1204 report.session = session;
1205
1206 has_br_stack = perf_header__has_feat(&session->header,
1207 HEADER_BRANCH_STACK);
1208
1209 setup_forced_leader(&report, session->evlist);
1210
1211 if (itrace_synth_opts.last_branch)
1212 has_br_stack = true;
1213
1214 if (has_br_stack && branch_call_mode)
1215 symbol_conf.show_branchflag_count = true;
1216
1217 memset(&report.brtype_stat, 0, sizeof(struct branch_type_stat));
1218
1219 /*
1220 * Branch mode is a tristate:
1221 * -1 means default, so decide based on the file having branch data.
1222 * 0/1 means the user chose a mode.
1223 */
1224 if (((branch_mode == -1 && has_br_stack) || branch_mode == 1) &&
1225 !branch_call_mode) {
1226 sort__mode = SORT_MODE__BRANCH;
1227 symbol_conf.cumulate_callchain = false;
1228 }
1229 if (branch_call_mode) {
1230 callchain_param.key = CCKEY_ADDRESS;
1231 callchain_param.branch_callstack = 1;
1232 symbol_conf.use_callchain = true;
1233 callchain_register_param(&callchain_param);
1234 if (sort_order == NULL)
1235 sort_order = "srcline,symbol,dso";
1236 }
1237
1238 if (report.mem_mode) {
1239 if (sort__mode == SORT_MODE__BRANCH) {
1240 pr_err("branch and mem mode incompatible\n");
1241 goto error;
1242 }
1243 sort__mode = SORT_MODE__MEMORY;
1244 symbol_conf.cumulate_callchain = false;
1245 }
1246
1247 if (symbol_conf.report_hierarchy) {
1248 /* disable incompatible options */
1249 symbol_conf.cumulate_callchain = false;
1250
1251 if (field_order) {
1252 pr_err("Error: --hierarchy and --fields options cannot be used together\n");
1253 parse_options_usage(report_usage, options, "F", 1);
1254 parse_options_usage(NULL, options, "hierarchy", 0);
1255 goto error;
1256 }
1257
1258 perf_hpp_list.need_collapse = true;
1259 }
1260
1261 if (report.use_stdio)
1262 use_browser = 0;
1263 else if (report.use_tui)
1264 use_browser = 1;
1265 else if (report.use_gtk)
1266 use_browser = 2;
1267
1268 /* Force tty output for header output and per-thread stat. */
1269 if (report.header || report.header_only || report.show_threads)
1270 use_browser = 0;
1271 if (report.header || report.header_only)
1272 report.tool.show_feat_hdr = SHOW_FEAT_HEADER;
1273 if (report.show_full_info)
1274 report.tool.show_feat_hdr = SHOW_FEAT_HEADER_FULL_INFO;
1275 if (report.stats_mode || report.tasks_mode)
1276 use_browser = 0;
1277 if (report.stats_mode && report.tasks_mode) {
1278 pr_err("Error: --tasks and --mmaps can't be used together with --stats\n");
1279 goto error;
1280 }
1281
1282 if (strcmp(input_name, "-") != 0)
1283 setup_browser(true);
1284 else
1285 use_browser = 0;
1286
1287 if (setup_sorting(session->evlist) < 0) {
1288 if (sort_order)
1289 parse_options_usage(report_usage, options, "s", 1);
1290 if (field_order)
1291 parse_options_usage(sort_order ? NULL : report_usage,
1292 options, "F", 1);
1293 goto error;
1294 }
1295
1296 if ((report.header || report.header_only) && !quiet) {
1297 perf_session__fprintf_info(session, stdout,
1298 report.show_full_info);
1299 if (report.header_only) {
1300 ret = 0;
1301 goto error;
1302 }
1303 } else if (use_browser == 0 && !quiet &&
1304 !report.stats_mode && !report.tasks_mode) {
1305 fputs("# To display the perf.data header info, please use --header/--header-only options.\n#\n",
1306 stdout);
1307 }
1308
1309 /*
1310 * Only in the TUI browser we are doing integrated annotation,
1311 * so don't allocate extra space that won't be used in the stdio
1312 * implementation.
1313 */
1314 if (ui__has_annotation()) {
1315 ret = symbol__annotation_init();
1316 if (ret < 0)
1317 goto error;
1318 /*
1319 * For searching by name on the "Browse map details".
1320 * providing it only in verbose mode not to bloat too
1321 * much struct symbol.
1322 */
1323 if (verbose > 0) {
1324 /*
1325 * XXX: Need to provide a less kludgy way to ask for
1326 * more space per symbol, the u32 is for the index on
1327 * the ui browser.
1328 * See symbol__browser_index.
1329 */
1330 symbol_conf.priv_size += sizeof(u32);
1331 symbol_conf.sort_by_name = true;
1332 }
1333 annotation_config__init();
1334 }
1335
1336 if (symbol__init(&session->header.env) < 0)
1337 goto error;
1338
1339 report.ptime_range = perf_time__range_alloc(report.time_str,
1340 &report.range_size);
1341 if (!report.ptime_range) {
1342 ret = -ENOMEM;
1343 goto error;
1344 }
1345
1346 if (perf_time__parse_str(report.ptime_range, report.time_str) != 0) {
1347 if (session->evlist->first_sample_time == 0 &&
1348 session->evlist->last_sample_time == 0) {
1349 pr_err("HINT: no first/last sample time found in perf data.\n"
1350 "Please use latest perf binary to execute 'perf record'\n"
1351 "(if '--buildid-all' is enabled, please set '--timestamp-boundary').\n");
1352 ret = -EINVAL;
1353 goto error;
1354 }
1355
1356 report.range_num = perf_time__percent_parse_str(
1357 report.ptime_range, report.range_size,
1358 report.time_str,
1359 session->evlist->first_sample_time,
1360 session->evlist->last_sample_time);
1361
1362 if (report.range_num < 0) {
1363 pr_err("Invalid time string\n");
1364 ret = -EINVAL;
1365 goto error;
1366 }
1367 } else {
1368 report.range_num = 1;
1369 }
1370
1371 if (session->tevent.pevent &&
1372 tep_set_function_resolver(session->tevent.pevent,
1373 machine__resolve_kernel_addr,
1374 &session->machines.host) < 0) {
1375 pr_err("%s: failed to set libtraceevent function resolver\n",
1376 __func__);
1377 return -1;
1378 }
1379
1380 sort__setup_elide(stdout);
1381
1382 ret = __cmd_report(&report);
1383 if (ret == K_SWITCH_INPUT_DATA) {
1384 perf_session__delete(session);
1385 goto repeat;
1386 } else
1387 ret = 0;
1388
1389 error:
1390 zfree(&report.ptime_range);
1391
1392 perf_session__delete(session);
1393 return ret;
1394 }
(deprecated) Btrfs devel tree