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Merge tag 'block-5.9-2020-08-14' of git://git.kernel.dk/linux-block
[linux/fpc-iii.git] / tools / perf / builtin-report.c
blobece1cddfcd7c79244ede449118fb01aba79de531
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/config.h"
12
13 #include "util/annotate.h"
14 #include "util/color.h"
15 #include "util/dso.h"
16 #include <linux/list.h>
17 #include <linux/rbtree.h>
18 #include <linux/err.h>
19 #include <linux/zalloc.h>
20 #include "util/map.h"
21 #include "util/symbol.h"
22 #include "util/map_symbol.h"
23 #include "util/mem-events.h"
24 #include "util/branch.h"
25 #include "util/callchain.h"
26 #include "util/values.h"
27
28 #include "perf.h"
29 #include "util/debug.h"
30 #include "util/evlist.h"
31 #include "util/evsel.h"
32 #include "util/evswitch.h"
33 #include "util/header.h"
34 #include "util/session.h"
35 #include "util/srcline.h"
36 #include "util/tool.h"
37
38 #include <subcmd/parse-options.h>
39 #include <subcmd/exec-cmd.h>
40 #include "util/parse-events.h"
41
42 #include "util/thread.h"
43 #include "util/sort.h"
44 #include "util/hist.h"
45 #include "util/data.h"
46 #include "arch/common.h"
47 #include "util/time-utils.h"
48 #include "util/auxtrace.h"
49 #include "util/units.h"
50 #include "util/util.h" // perf_tip()
51 #include "ui/ui.h"
52 #include "ui/progress.h"
53 #include "util/block-info.h"
54
55 #include <dlfcn.h>
56 #include <errno.h>
57 #include <inttypes.h>
58 #include <regex.h>
59 #include <linux/ctype.h>
60 #include <signal.h>
61 #include <linux/bitmap.h>
62 #include <linux/string.h>
63 #include <linux/stringify.h>
64 #include <linux/time64.h>
65 #include <sys/types.h>
66 #include <sys/stat.h>
67 #include <unistd.h>
68 #include <linux/mman.h>
69
70 struct report {
71 struct perf_tool tool;
72 struct perf_session *session;
73 struct evswitch evswitch;
74 bool use_tui, use_gtk, use_stdio;
75 bool show_full_info;
76 bool show_threads;
77 bool inverted_callchain;
78 bool mem_mode;
79 bool stats_mode;
80 bool tasks_mode;
81 bool mmaps_mode;
82 bool header;
83 bool header_only;
84 bool nonany_branch_mode;
85 bool group_set;
86 bool stitch_lbr;
87 int max_stack;
88 struct perf_read_values show_threads_values;
89 struct annotation_options annotation_opts;
90 const char *pretty_printing_style;
91 const char *cpu_list;
92 const char *symbol_filter_str;
93 const char *time_str;
94 struct perf_time_interval *ptime_range;
95 int range_size;
96 int range_num;
97 float min_percent;
98 u64 nr_entries;
99 u64 queue_size;
100 u64 total_cycles;
101 int socket_filter;
102 DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
103 struct branch_type_stat brtype_stat;
104 bool symbol_ipc;
105 bool total_cycles_mode;
106 struct block_report *block_reports;
107 int nr_block_reports;
108 };
109
110 static int report__config(const char *var, const char *value, void *cb)
111 {
112 struct report *rep = cb;
113
114 if (!strcmp(var, "report.group")) {
115 symbol_conf.event_group = perf_config_bool(var, value);
116 return 0;
117 }
118 if (!strcmp(var, "report.percent-limit")) {
119 double pcnt = strtof(value, NULL);
120
121 rep->min_percent = pcnt;
122 callchain_param.min_percent = pcnt;
123 return 0;
124 }
125 if (!strcmp(var, "report.children")) {
126 symbol_conf.cumulate_callchain = perf_config_bool(var, value);
127 return 0;
128 }
129 if (!strcmp(var, "report.queue-size"))
130 return perf_config_u64(&rep->queue_size, var, value);
131
132 if (!strcmp(var, "report.sort_order")) {
133 default_sort_order = strdup(value);
134 return 0;
135 }
136
137 return 0;
138 }
139
140 static int hist_iter__report_callback(struct hist_entry_iter *iter,
141 struct addr_location *al, bool single,
142 void *arg)
143 {
144 int err = 0;
145 struct report *rep = arg;
146 struct hist_entry *he = iter->he;
147 struct evsel *evsel = iter->evsel;
148 struct perf_sample *sample = iter->sample;
149 struct mem_info *mi;
150 struct branch_info *bi;
151
152 if (!ui__has_annotation() && !rep->symbol_ipc)
153 return 0;
154
155 if (sort__mode == SORT_MODE__BRANCH) {
156 bi = he->branch_info;
157 err = addr_map_symbol__inc_samples(&bi->from, sample, evsel);
158 if (err)
159 goto out;
160
161 err = addr_map_symbol__inc_samples(&bi->to, sample, evsel);
162
163 } else if (rep->mem_mode) {
164 mi = he->mem_info;
165 err = addr_map_symbol__inc_samples(&mi->daddr, sample, evsel);
166 if (err)
167 goto out;
168
169 err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr);
170
171 } else if (symbol_conf.cumulate_callchain) {
172 if (single)
173 err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr);
174 } else {
175 err = hist_entry__inc_addr_samples(he, sample, evsel, al->addr);
176 }
177
178 out:
179 return err;
180 }
181
182 static int hist_iter__branch_callback(struct hist_entry_iter *iter,
183 struct addr_location *al __maybe_unused,
184 bool single __maybe_unused,
185 void *arg)
186 {
187 struct hist_entry *he = iter->he;
188 struct report *rep = arg;
189 struct branch_info *bi = he->branch_info;
190 struct perf_sample *sample = iter->sample;
191 struct evsel *evsel = iter->evsel;
192 int err;
193
194 branch_type_count(&rep->brtype_stat, &bi->flags,
195 bi->from.addr, bi->to.addr);
196
197 if (!ui__has_annotation() && !rep->symbol_ipc)
198 return 0;
199
200 err = addr_map_symbol__inc_samples(&bi->from, sample, evsel);
201 if (err)
202 goto out;
203
204 err = addr_map_symbol__inc_samples(&bi->to, sample, evsel);
205
206 out:
207 return err;
208 }
209
210 static void setup_forced_leader(struct report *report,
211 struct evlist *evlist)
212 {
213 if (report->group_set)
214 perf_evlist__force_leader(evlist);
215 }
216
217 static int process_feature_event(struct perf_session *session,
218 union perf_event *event)
219 {
220 struct report *rep = container_of(session->tool, struct report, tool);
221
222 if (event->feat.feat_id < HEADER_LAST_FEATURE)
223 return perf_event__process_feature(session, event);
224
225 if (event->feat.feat_id != HEADER_LAST_FEATURE) {
226 pr_err("failed: wrong feature ID: %" PRI_lu64 "\n",
227 event->feat.feat_id);
228 return -1;
229 }
230
231 /*
232 * (feat_id = HEADER_LAST_FEATURE) is the end marker which
233 * means all features are received, now we can force the
234 * group if needed.
235 */
236 setup_forced_leader(rep, session->evlist);
237 return 0;
238 }
239
240 static int process_sample_event(struct perf_tool *tool,
241 union perf_event *event,
242 struct perf_sample *sample,
243 struct evsel *evsel,
244 struct machine *machine)
245 {
246 struct report *rep = container_of(tool, struct report, tool);
247 struct addr_location al;
248 struct hist_entry_iter iter = {
249 .evsel = evsel,
250 .sample = sample,
251 .hide_unresolved = symbol_conf.hide_unresolved,
252 .add_entry_cb = hist_iter__report_callback,
253 };
254 int ret = 0;
255
256 if (perf_time__ranges_skip_sample(rep->ptime_range, rep->range_num,
257 sample->time)) {
258 return 0;
259 }
260
261 if (evswitch__discard(&rep->evswitch, evsel))
262 return 0;
263
264 if (machine__resolve(machine, &al, sample) < 0) {
265 pr_debug("problem processing %d event, skipping it.\n",
266 event->header.type);
267 return -1;
268 }
269
270 if (rep->stitch_lbr)
271 al.thread->lbr_stitch_enable = true;
272
273 if (symbol_conf.hide_unresolved && al.sym == NULL)
274 goto out_put;
275
276 if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap))
277 goto out_put;
278
279 if (sort__mode == SORT_MODE__BRANCH) {
280 /*
281 * A non-synthesized event might not have a branch stack if
282 * branch stacks have been synthesized (using itrace options).
283 */
284 if (!sample->branch_stack)
285 goto out_put;
286
287 iter.add_entry_cb = hist_iter__branch_callback;
288 iter.ops = &hist_iter_branch;
289 } else if (rep->mem_mode) {
290 iter.ops = &hist_iter_mem;
291 } else if (symbol_conf.cumulate_callchain) {
292 iter.ops = &hist_iter_cumulative;
293 } else {
294 iter.ops = &hist_iter_normal;
295 }
296
297 if (al.map != NULL)
298 al.map->dso->hit = 1;
299
300 if (ui__has_annotation() || rep->symbol_ipc || rep->total_cycles_mode) {
301 hist__account_cycles(sample->branch_stack, &al, sample,
302 rep->nonany_branch_mode,
303 &rep->total_cycles);
304 }
305
306 ret = hist_entry_iter__add(&iter, &al, rep->max_stack, rep);
307 if (ret < 0)
308 pr_debug("problem adding hist entry, skipping event\n");
309 out_put:
310 addr_location__put(&al);
311 return ret;
312 }
313
314 static int process_read_event(struct perf_tool *tool,
315 union perf_event *event,
316 struct perf_sample *sample __maybe_unused,
317 struct evsel *evsel,
318 struct machine *machine __maybe_unused)
319 {
320 struct report *rep = container_of(tool, struct report, tool);
321
322 if (rep->show_threads) {
323 const char *name = evsel__name(evsel);
324 int err = perf_read_values_add_value(&rep->show_threads_values,
325 event->read.pid, event->read.tid,
326 evsel->idx,
327 name,
328 event->read.value);
329
330 if (err)
331 return err;
332 }
333
334 return 0;
335 }
336
337 /* For pipe mode, sample_type is not currently set */
338 static int report__setup_sample_type(struct report *rep)
339 {
340 struct perf_session *session = rep->session;
341 u64 sample_type = evlist__combined_sample_type(session->evlist);
342 bool is_pipe = perf_data__is_pipe(session->data);
343
344 if (session->itrace_synth_opts->callchain ||
345 session->itrace_synth_opts->add_callchain ||
346 (!is_pipe &&
347 perf_header__has_feat(&session->header, HEADER_AUXTRACE) &&
348 !session->itrace_synth_opts->set))
349 sample_type |= PERF_SAMPLE_CALLCHAIN;
350
351 if (session->itrace_synth_opts->last_branch ||
352 session->itrace_synth_opts->add_last_branch)
353 sample_type |= PERF_SAMPLE_BRANCH_STACK;
354
355 if (!is_pipe && !(sample_type & PERF_SAMPLE_CALLCHAIN)) {
356 if (perf_hpp_list.parent) {
357 ui__error("Selected --sort parent, but no "
358 "callchain data. Did you call "
359 "'perf record' without -g?\n");
360 return -EINVAL;
361 }
362 if (symbol_conf.use_callchain &&
363 !symbol_conf.show_branchflag_count) {
364 ui__error("Selected -g or --branch-history.\n"
365 "But no callchain or branch data.\n"
366 "Did you call 'perf record' without -g or -b?\n");
367 return -1;
368 }
369 } else if (!callchain_param.enabled &&
370 callchain_param.mode != CHAIN_NONE &&
371 !symbol_conf.use_callchain) {
372 symbol_conf.use_callchain = true;
373 if (callchain_register_param(&callchain_param) < 0) {
374 ui__error("Can't register callchain params.\n");
375 return -EINVAL;
376 }
377 }
378
379 if (symbol_conf.cumulate_callchain) {
380 /* Silently ignore if callchain is missing */
381 if (!(sample_type & PERF_SAMPLE_CALLCHAIN)) {
382 symbol_conf.cumulate_callchain = false;
383 perf_hpp__cancel_cumulate();
384 }
385 }
386
387 if (sort__mode == SORT_MODE__BRANCH) {
388 if (!is_pipe &&
389 !(sample_type & PERF_SAMPLE_BRANCH_STACK)) {
390 ui__error("Selected -b but no branch data. "
391 "Did you call perf record without -b?\n");
392 return -1;
393 }
394 }
395
396 if (sort__mode == SORT_MODE__MEMORY) {
397 if (!is_pipe && !(sample_type & PERF_SAMPLE_DATA_SRC)) {
398 ui__error("Selected --mem-mode but no mem data. "
399 "Did you call perf record without -d?\n");
400 return -1;
401 }
402 }
403
404 callchain_param_setup(sample_type);
405
406 if (rep->stitch_lbr && (callchain_param.record_mode != CALLCHAIN_LBR)) {
407 ui__warning("Can't find LBR callchain. Switch off --stitch-lbr.\n"
408 "Please apply --call-graph lbr when recording.\n");
409 rep->stitch_lbr = false;
410 }
411
412 /* ??? handle more cases than just ANY? */
413 if (!(evlist__combined_branch_type(session->evlist) & PERF_SAMPLE_BRANCH_ANY))
414 rep->nonany_branch_mode = true;
415
416 #if !defined(HAVE_LIBUNWIND_SUPPORT) && !defined(HAVE_DWARF_SUPPORT)
417 if (dwarf_callchain_users) {
418 ui__warning("Please install libunwind or libdw "
419 "development packages during the perf build.\n");
420 }
421 #endif
422
423 return 0;
424 }
425
426 static void sig_handler(int sig __maybe_unused)
427 {
428 session_done = 1;
429 }
430
431 static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report *rep,
432 const char *evname, FILE *fp)
433 {
434 size_t ret;
435 char unit;
436 unsigned long nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE];
437 u64 nr_events = hists->stats.total_period;
438 struct evsel *evsel = hists_to_evsel(hists);
439 char buf[512];
440 size_t size = sizeof(buf);
441 int socked_id = hists->socket_filter;
442
443 if (quiet)
444 return 0;
445
446 if (symbol_conf.filter_relative) {
447 nr_samples = hists->stats.nr_non_filtered_samples;
448 nr_events = hists->stats.total_non_filtered_period;
449 }
450
451 if (evsel__is_group_event(evsel)) {
452 struct evsel *pos;
453
454 evsel__group_desc(evsel, buf, size);
455 evname = buf;
456
457 for_each_group_member(pos, evsel) {
458 const struct hists *pos_hists = evsel__hists(pos);
459
460 if (symbol_conf.filter_relative) {
461 nr_samples += pos_hists->stats.nr_non_filtered_samples;
462 nr_events += pos_hists->stats.total_non_filtered_period;
463 } else {
464 nr_samples += pos_hists->stats.nr_events[PERF_RECORD_SAMPLE];
465 nr_events += pos_hists->stats.total_period;
466 }
467 }
468 }
469
470 nr_samples = convert_unit(nr_samples, &unit);
471 ret = fprintf(fp, "# Samples: %lu%c", nr_samples, unit);
472 if (evname != NULL) {
473 ret += fprintf(fp, " of event%s '%s'",
474 evsel->core.nr_members > 1 ? "s" : "", evname);
475 }
476
477 if (rep->time_str)
478 ret += fprintf(fp, " (time slices: %s)", rep->time_str);
479
480 if (symbol_conf.show_ref_callgraph && evname && strstr(evname, "call-graph=no")) {
481 ret += fprintf(fp, ", show reference callgraph");
482 }
483
484 if (rep->mem_mode) {
485 ret += fprintf(fp, "\n# Total weight : %" PRIu64, nr_events);
486 ret += fprintf(fp, "\n# Sort order : %s", sort_order ? : default_mem_sort_order);
487 } else
488 ret += fprintf(fp, "\n# Event count (approx.): %" PRIu64, nr_events);
489
490 if (socked_id > -1)
491 ret += fprintf(fp, "\n# Processor Socket: %d", socked_id);
492
493 return ret + fprintf(fp, "\n#\n");
494 }
495
496 static int perf_evlist__tui_block_hists_browse(struct evlist *evlist,
497 struct report *rep)
498 {
499 struct evsel *pos;
500 int i = 0, ret;
501
502 evlist__for_each_entry(evlist, pos) {
503 ret = report__browse_block_hists(&rep->block_reports[i++].hist,
504 rep->min_percent, pos,
505 &rep->session->header.env,
506 &rep->annotation_opts);
507 if (ret != 0)
508 return ret;
509 }
510
511 return 0;
512 }
513
514 static int perf_evlist__tty_browse_hists(struct evlist *evlist,
515 struct report *rep,
516 const char *help)
517 {
518 struct evsel *pos;
519 int i = 0;
520
521 if (!quiet) {
522 fprintf(stdout, "#\n# Total Lost Samples: %" PRIu64 "\n#\n",
523 evlist->stats.total_lost_samples);
524 }
525
526 evlist__for_each_entry(evlist, pos) {
527 struct hists *hists = evsel__hists(pos);
528 const char *evname = evsel__name(pos);
529
530 if (symbol_conf.event_group && !evsel__is_group_leader(pos))
531 continue;
532
533 hists__fprintf_nr_sample_events(hists, rep, evname, stdout);
534
535 if (rep->total_cycles_mode) {
536 report__browse_block_hists(&rep->block_reports[i++].hist,
537 rep->min_percent, pos,
538 NULL, NULL);
539 continue;
540 }
541
542 hists__fprintf(hists, !quiet, 0, 0, rep->min_percent, stdout,
543 !(symbol_conf.use_callchain ||
544 symbol_conf.show_branchflag_count));
545 fprintf(stdout, "\n\n");
546 }
547
548 if (!quiet)
549 fprintf(stdout, "#\n# (%s)\n#\n", help);
550
551 if (rep->show_threads) {
552 bool style = !strcmp(rep->pretty_printing_style, "raw");
553 perf_read_values_display(stdout, &rep->show_threads_values,
554 style);
555 perf_read_values_destroy(&rep->show_threads_values);
556 }
557
558 if (sort__mode == SORT_MODE__BRANCH)
559 branch_type_stat_display(stdout, &rep->brtype_stat);
560
561 return 0;
562 }
563
564 static void report__warn_kptr_restrict(const struct report *rep)
565 {
566 struct map *kernel_map = machine__kernel_map(&rep->session->machines.host);
567 struct kmap *kernel_kmap = kernel_map ? map__kmap(kernel_map) : NULL;
568
569 if (perf_evlist__exclude_kernel(rep->session->evlist))
570 return;
571
572 if (kernel_map == NULL ||
573 (kernel_map->dso->hit &&
574 (kernel_kmap->ref_reloc_sym == NULL ||
575 kernel_kmap->ref_reloc_sym->addr == 0))) {
576 const char *desc =
577 "As no suitable kallsyms nor vmlinux was found, kernel samples\n"
578 "can't be resolved.";
579
580 if (kernel_map && map__has_symbols(kernel_map)) {
581 desc = "If some relocation was applied (e.g. "
582 "kexec) symbols may be misresolved.";
583 }
584
585 ui__warning(
586 "Kernel address maps (/proc/{kallsyms,modules}) were restricted.\n\n"
587 "Check /proc/sys/kernel/kptr_restrict before running 'perf record'.\n\n%s\n\n"
588 "Samples in kernel modules can't be resolved as well.\n\n",
589 desc);
590 }
591 }
592
593 static int report__gtk_browse_hists(struct report *rep, const char *help)
594 {
595 int (*hist_browser)(struct evlist *evlist, const char *help,
596 struct hist_browser_timer *timer, float min_pcnt);
597
598 hist_browser = dlsym(perf_gtk_handle, "perf_evlist__gtk_browse_hists");
599
600 if (hist_browser == NULL) {
601 ui__error("GTK browser not found!\n");
602 return -1;
603 }
604
605 return hist_browser(rep->session->evlist, help, NULL, rep->min_percent);
606 }
607
608 static int report__browse_hists(struct report *rep)
609 {
610 int ret;
611 struct perf_session *session = rep->session;
612 struct evlist *evlist = session->evlist;
613 const char *help = perf_tip(system_path(TIPDIR));
614
615 if (help == NULL) {
616 /* fallback for people who don't install perf ;-) */
617 help = perf_tip(DOCDIR);
618 if (help == NULL)
619 help = "Cannot load tips.txt file, please install perf!";
620 }
621
622 switch (use_browser) {
623 case 1:
624 if (rep->total_cycles_mode) {
625 ret = perf_evlist__tui_block_hists_browse(evlist, rep);
626 break;
627 }
628
629 ret = perf_evlist__tui_browse_hists(evlist, help, NULL,
630 rep->min_percent,
631 &session->header.env,
632 true, &rep->annotation_opts);
633 /*
634 * Usually "ret" is the last pressed key, and we only
635 * care if the key notifies us to switch data file.
636 */
637 if (ret != K_SWITCH_INPUT_DATA && ret != K_RELOAD)
638 ret = 0;
639 break;
640 case 2:
641 ret = report__gtk_browse_hists(rep, help);
642 break;
643 default:
644 ret = perf_evlist__tty_browse_hists(evlist, rep, help);
645 break;
646 }
647
648 return ret;
649 }
650
651 static int report__collapse_hists(struct report *rep)
652 {
653 struct ui_progress prog;
654 struct evsel *pos;
655 int ret = 0;
656
657 ui_progress__init(&prog, rep->nr_entries, "Merging related events...");
658
659 evlist__for_each_entry(rep->session->evlist, pos) {
660 struct hists *hists = evsel__hists(pos);
661
662 if (pos->idx == 0)
663 hists->symbol_filter_str = rep->symbol_filter_str;
664
665 hists->socket_filter = rep->socket_filter;
666
667 ret = hists__collapse_resort(hists, &prog);
668 if (ret < 0)
669 break;
670
671 /* Non-group events are considered as leader */
672 if (symbol_conf.event_group && !evsel__is_group_leader(pos)) {
673 struct hists *leader_hists = evsel__hists(pos->leader);
674
675 hists__match(leader_hists, hists);
676 hists__link(leader_hists, hists);
677 }
678 }
679
680 ui_progress__finish();
681 return ret;
682 }
683
684 static int hists__resort_cb(struct hist_entry *he, void *arg)
685 {
686 struct report *rep = arg;
687 struct symbol *sym = he->ms.sym;
688
689 if (rep->symbol_ipc && sym && !sym->annotate2) {
690 struct evsel *evsel = hists_to_evsel(he->hists);
691
692 symbol__annotate2(&he->ms, evsel,
693 &annotation__default_options, NULL);
694 }
695
696 return 0;
697 }
698
699 static void report__output_resort(struct report *rep)
700 {
701 struct ui_progress prog;
702 struct evsel *pos;
703
704 ui_progress__init(&prog, rep->nr_entries, "Sorting events for output...");
705
706 evlist__for_each_entry(rep->session->evlist, pos) {
707 evsel__output_resort_cb(pos, &prog, hists__resort_cb, rep);
708 }
709
710 ui_progress__finish();
711 }
712
713 static void stats_setup(struct report *rep)
714 {
715 memset(&rep->tool, 0, sizeof(rep->tool));
716 rep->tool.no_warn = true;
717 }
718
719 static int stats_print(struct report *rep)
720 {
721 struct perf_session *session = rep->session;
722
723 perf_session__fprintf_nr_events(session, stdout);
724 return 0;
725 }
726
727 static void tasks_setup(struct report *rep)
728 {
729 memset(&rep->tool, 0, sizeof(rep->tool));
730 rep->tool.ordered_events = true;
731 if (rep->mmaps_mode) {
732 rep->tool.mmap = perf_event__process_mmap;
733 rep->tool.mmap2 = perf_event__process_mmap2;
734 }
735 rep->tool.comm = perf_event__process_comm;
736 rep->tool.exit = perf_event__process_exit;
737 rep->tool.fork = perf_event__process_fork;
738 rep->tool.no_warn = true;
739 }
740
741 struct task {
742 struct thread *thread;
743 struct list_head list;
744 struct list_head children;
745 };
746
747 static struct task *tasks_list(struct task *task, struct machine *machine)
748 {
749 struct thread *parent_thread, *thread = task->thread;
750 struct task *parent_task;
751
752 /* Already listed. */
753 if (!list_empty(&task->list))
754 return NULL;
755
756 /* Last one in the chain. */
757 if (thread->ppid == -1)
758 return task;
759
760 parent_thread = machine__find_thread(machine, -1, thread->ppid);
761 if (!parent_thread)
762 return ERR_PTR(-ENOENT);
763
764 parent_task = thread__priv(parent_thread);
765 list_add_tail(&task->list, &parent_task->children);
766 return tasks_list(parent_task, machine);
767 }
768
769 static size_t maps__fprintf_task(struct maps *maps, int indent, FILE *fp)
770 {
771 size_t printed = 0;
772 struct map *map;
773
774 maps__for_each_entry(maps, map) {
775 printed += fprintf(fp, "%*s %" PRIx64 "-%" PRIx64 " %c%c%c%c %08" PRIx64 " %" PRIu64 " %s\n",
776 indent, "", map->start, map->end,
777 map->prot & PROT_READ ? 'r' : '-',
778 map->prot & PROT_WRITE ? 'w' : '-',
779 map->prot & PROT_EXEC ? 'x' : '-',
780 map->flags & MAP_SHARED ? 's' : 'p',
781 map->pgoff,
782 map->dso->id.ino, map->dso->name);
783 }
784
785 return printed;
786 }
787
788 static void task__print_level(struct task *task, FILE *fp, int level)
789 {
790 struct thread *thread = task->thread;
791 struct task *child;
792 int comm_indent = fprintf(fp, " %8d %8d %8d |%*s",
793 thread->pid_, thread->tid, thread->ppid,
794 level, "");
795
796 fprintf(fp, "%s\n", thread__comm_str(thread));
797
798 maps__fprintf_task(thread->maps, comm_indent, fp);
799
800 if (!list_empty(&task->children)) {
801 list_for_each_entry(child, &task->children, list)
802 task__print_level(child, fp, level + 1);
803 }
804 }
805
806 static int tasks_print(struct report *rep, FILE *fp)
807 {
808 struct perf_session *session = rep->session;
809 struct machine *machine = &session->machines.host;
810 struct task *tasks, *task;
811 unsigned int nr = 0, itask = 0, i;
812 struct rb_node *nd;
813 LIST_HEAD(list);
814
815 /*
816 * No locking needed while accessing machine->threads,
817 * because --tasks is single threaded command.
818 */
819
820 /* Count all the threads. */
821 for (i = 0; i < THREADS__TABLE_SIZE; i++)
822 nr += machine->threads[i].nr;
823
824 tasks = malloc(sizeof(*tasks) * nr);
825 if (!tasks)
826 return -ENOMEM;
827
828 for (i = 0; i < THREADS__TABLE_SIZE; i++) {
829 struct threads *threads = &machine->threads[i];
830
831 for (nd = rb_first_cached(&threads->entries); nd;
832 nd = rb_next(nd)) {
833 task = tasks + itask++;
834
835 task->thread = rb_entry(nd, struct thread, rb_node);
836 INIT_LIST_HEAD(&task->children);
837 INIT_LIST_HEAD(&task->list);
838 thread__set_priv(task->thread, task);
839 }
840 }
841
842 /*
843 * Iterate every task down to the unprocessed parent
844 * and link all in task children list. Task with no
845 * parent is added into 'list'.
846 */
847 for (itask = 0; itask < nr; itask++) {
848 task = tasks + itask;
849
850 if (!list_empty(&task->list))
851 continue;
852
853 task = tasks_list(task, machine);
854 if (IS_ERR(task)) {
855 pr_err("Error: failed to process tasks\n");
856 free(tasks);
857 return PTR_ERR(task);
858 }
859
860 if (task)
861 list_add_tail(&task->list, &list);
862 }
863
864 fprintf(fp, "# %8s %8s %8s %s\n", "pid", "tid", "ppid", "comm");
865
866 list_for_each_entry(task, &list, list)
867 task__print_level(task, fp, 0);
868
869 free(tasks);
870 return 0;
871 }
872
873 static int __cmd_report(struct report *rep)
874 {
875 int ret;
876 struct perf_session *session = rep->session;
877 struct evsel *pos;
878 struct perf_data *data = session->data;
879
880 signal(SIGINT, sig_handler);
881
882 if (rep->cpu_list) {
883 ret = perf_session__cpu_bitmap(session, rep->cpu_list,
884 rep->cpu_bitmap);
885 if (ret) {
886 ui__error("failed to set cpu bitmap\n");
887 return ret;
888 }
889 session->itrace_synth_opts->cpu_bitmap = rep->cpu_bitmap;
890 }
891
892 if (rep->show_threads) {
893 ret = perf_read_values_init(&rep->show_threads_values);
894 if (ret)
895 return ret;
896 }
897
898 ret = report__setup_sample_type(rep);
899 if (ret) {
900 /* report__setup_sample_type() already showed error message */
901 return ret;
902 }
903
904 if (rep->stats_mode)
905 stats_setup(rep);
906
907 if (rep->tasks_mode)
908 tasks_setup(rep);
909
910 ret = perf_session__process_events(session);
911 if (ret) {
912 ui__error("failed to process sample\n");
913 return ret;
914 }
915
916 if (rep->stats_mode)
917 return stats_print(rep);
918
919 if (rep->tasks_mode)
920 return tasks_print(rep, stdout);
921
922 report__warn_kptr_restrict(rep);
923
924 evlist__for_each_entry(session->evlist, pos)
925 rep->nr_entries += evsel__hists(pos)->nr_entries;
926
927 if (use_browser == 0) {
928 if (verbose > 3)
929 perf_session__fprintf(session, stdout);
930
931 if (verbose > 2)
932 perf_session__fprintf_dsos(session, stdout);
933
934 if (dump_trace) {
935 perf_session__fprintf_nr_events(session, stdout);
936 perf_evlist__fprintf_nr_events(session->evlist, stdout);
937 return 0;
938 }
939 }
940
941 ret = report__collapse_hists(rep);
942 if (ret) {
943 ui__error("failed to process hist entry\n");
944 return ret;
945 }
946
947 if (session_done())
948 return 0;
949
950 /*
951 * recalculate number of entries after collapsing since it
952 * might be changed during the collapse phase.
953 */
954 rep->nr_entries = 0;
955 evlist__for_each_entry(session->evlist, pos)
956 rep->nr_entries += evsel__hists(pos)->nr_entries;
957
958 if (rep->nr_entries == 0) {
959 ui__error("The %s data has no samples!\n", data->path);
960 return 0;
961 }
962
963 report__output_resort(rep);
964
965 if (rep->total_cycles_mode) {
966 int block_hpps[6] = {
967 PERF_HPP_REPORT__BLOCK_TOTAL_CYCLES_PCT,
968 PERF_HPP_REPORT__BLOCK_LBR_CYCLES,
969 PERF_HPP_REPORT__BLOCK_CYCLES_PCT,
970 PERF_HPP_REPORT__BLOCK_AVG_CYCLES,
971 PERF_HPP_REPORT__BLOCK_RANGE,
972 PERF_HPP_REPORT__BLOCK_DSO,
973 };
974
975 rep->block_reports = block_info__create_report(session->evlist,
976 rep->total_cycles,
977 block_hpps, 6,
978 &rep->nr_block_reports);
979 if (!rep->block_reports)
980 return -1;
981 }
982
983 return report__browse_hists(rep);
984 }
985
986 static int
987 report_parse_callchain_opt(const struct option *opt, const char *arg, int unset)
988 {
989 struct callchain_param *callchain = opt->value;
990
991 callchain->enabled = !unset;
992 /*
993 * --no-call-graph
994 */
995 if (unset) {
996 symbol_conf.use_callchain = false;
997 callchain->mode = CHAIN_NONE;
998 return 0;
999 }
1000
1001 return parse_callchain_report_opt(arg);
1002 }
1003
1004 static int
1005 parse_time_quantum(const struct option *opt, const char *arg,
1006 int unset __maybe_unused)
1007 {
1008 unsigned long *time_q = opt->value;
1009 char *end;
1010
1011 *time_q = strtoul(arg, &end, 0);
1012 if (end == arg)
1013 goto parse_err;
1014 if (*time_q == 0) {
1015 pr_err("time quantum cannot be 0");
1016 return -1;
1017 }
1018 end = skip_spaces(end);
1019 if (*end == 0)
1020 return 0;
1021 if (!strcmp(end, "s")) {
1022 *time_q *= NSEC_PER_SEC;
1023 return 0;
1024 }
1025 if (!strcmp(end, "ms")) {
1026 *time_q *= NSEC_PER_MSEC;
1027 return 0;
1028 }
1029 if (!strcmp(end, "us")) {
1030 *time_q *= NSEC_PER_USEC;
1031 return 0;
1032 }
1033 if (!strcmp(end, "ns"))
1034 return 0;
1035 parse_err:
1036 pr_err("Cannot parse time quantum `%s'\n", arg);
1037 return -1;
1038 }
1039
1040 int
1041 report_parse_ignore_callees_opt(const struct option *opt __maybe_unused,
1042 const char *arg, int unset __maybe_unused)
1043 {
1044 if (arg) {
1045 int err = regcomp(&ignore_callees_regex, arg, REG_EXTENDED);
1046 if (err) {
1047 char buf[BUFSIZ];
1048 regerror(err, &ignore_callees_regex, buf, sizeof(buf));
1049 pr_err("Invalid --ignore-callees regex: %s\n%s", arg, buf);
1050 return -1;
1051 }
1052 have_ignore_callees = 1;
1053 }
1054
1055 return 0;
1056 }
1057
1058 static int
1059 parse_branch_mode(const struct option *opt,
1060 const char *str __maybe_unused, int unset)
1061 {
1062 int *branch_mode = opt->value;
1063
1064 *branch_mode = !unset;
1065 return 0;
1066 }
1067
1068 static int
1069 parse_percent_limit(const struct option *opt, const char *str,
1070 int unset __maybe_unused)
1071 {
1072 struct report *rep = opt->value;
1073 double pcnt = strtof(str, NULL);
1074
1075 rep->min_percent = pcnt;
1076 callchain_param.min_percent = pcnt;
1077 return 0;
1078 }
1079
1080 static int process_attr(struct perf_tool *tool __maybe_unused,
1081 union perf_event *event,
1082 struct evlist **pevlist)
1083 {
1084 u64 sample_type;
1085 int err;
1086
1087 err = perf_event__process_attr(tool, event, pevlist);
1088 if (err)
1089 return err;
1090
1091 /*
1092 * Check if we need to enable callchains based
1093 * on events sample_type.
1094 */
1095 sample_type = evlist__combined_sample_type(*pevlist);
1096 callchain_param_setup(sample_type);
1097 return 0;
1098 }
1099
1100 int cmd_report(int argc, const char **argv)
1101 {
1102 struct perf_session *session;
1103 struct itrace_synth_opts itrace_synth_opts = { .set = 0, };
1104 struct stat st;
1105 bool has_br_stack = false;
1106 int branch_mode = -1;
1107 int last_key = 0;
1108 bool branch_call_mode = false;
1109 #define CALLCHAIN_DEFAULT_OPT "graph,0.5,caller,function,percent"
1110 static const char report_callchain_help[] = "Display call graph (stack chain/backtrace):\n\n"
1111 CALLCHAIN_REPORT_HELP
1112 "\n\t\t\t\tDefault: " CALLCHAIN_DEFAULT_OPT;
1113 char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT;
1114 const char * const report_usage[] = {
1115 "perf report [<options>]",
1116 NULL
1117 };
1118 struct report report = {
1119 .tool = {
1120 .sample = process_sample_event,
1121 .mmap = perf_event__process_mmap,
1122 .mmap2 = perf_event__process_mmap2,
1123 .comm = perf_event__process_comm,
1124 .namespaces = perf_event__process_namespaces,
1125 .cgroup = perf_event__process_cgroup,
1126 .exit = perf_event__process_exit,
1127 .fork = perf_event__process_fork,
1128 .lost = perf_event__process_lost,
1129 .read = process_read_event,
1130 .attr = process_attr,
1131 .tracing_data = perf_event__process_tracing_data,
1132 .build_id = perf_event__process_build_id,
1133 .id_index = perf_event__process_id_index,
1134 .auxtrace_info = perf_event__process_auxtrace_info,
1135 .auxtrace = perf_event__process_auxtrace,
1136 .event_update = perf_event__process_event_update,
1137 .feature = process_feature_event,
1138 .ordered_events = true,
1139 .ordering_requires_timestamps = true,
1140 },
1141 .max_stack = PERF_MAX_STACK_DEPTH,
1142 .pretty_printing_style = "normal",
1143 .socket_filter = -1,
1144 .annotation_opts = annotation__default_options,
1145 };
1146 const struct option options[] = {
1147 OPT_STRING('i', "input", &input_name, "file",
1148 "input file name"),
1149 OPT_INCR('v', "verbose", &verbose,
1150 "be more verbose (show symbol address, etc)"),
1151 OPT_BOOLEAN('q', "quiet", &quiet, "Do not show any message"),
1152 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
1153 "dump raw trace in ASCII"),
1154 OPT_BOOLEAN(0, "stats", &report.stats_mode, "Display event stats"),
1155 OPT_BOOLEAN(0, "tasks", &report.tasks_mode, "Display recorded tasks"),
1156 OPT_BOOLEAN(0, "mmaps", &report.mmaps_mode, "Display recorded tasks memory maps"),
1157 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
1158 "file", "vmlinux pathname"),
1159 OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux,
1160 "don't load vmlinux even if found"),
1161 OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
1162 "file", "kallsyms pathname"),
1163 OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"),
1164 OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
1165 "load module symbols - WARNING: use only with -k and LIVE kernel"),
1166 OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
1167 "Show a column with the number of samples"),
1168 OPT_BOOLEAN('T', "threads", &report.show_threads,
1169 "Show per-thread event counters"),
1170 OPT_STRING(0, "pretty", &report.pretty_printing_style, "key",
1171 "pretty printing style key: normal raw"),
1172 OPT_BOOLEAN(0, "tui", &report.use_tui, "Use the TUI interface"),
1173 OPT_BOOLEAN(0, "gtk", &report.use_gtk, "Use the GTK2 interface"),
1174 OPT_BOOLEAN(0, "stdio", &report.use_stdio,
1175 "Use the stdio interface"),
1176 OPT_BOOLEAN(0, "header", &report.header, "Show data header."),
1177 OPT_BOOLEAN(0, "header-only", &report.header_only,
1178 "Show only data header."),
1179 OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
1180 sort_help("sort by key(s):")),
1181 OPT_STRING('F', "fields", &field_order, "key[,keys...]",
1182 sort_help("output field(s): overhead period sample ")),
1183 OPT_BOOLEAN(0, "show-cpu-utilization", &symbol_conf.show_cpu_utilization,
1184 "Show sample percentage for different cpu modes"),
1185 OPT_BOOLEAN_FLAG(0, "showcpuutilization", &symbol_conf.show_cpu_utilization,
1186 "Show sample percentage for different cpu modes", PARSE_OPT_HIDDEN),
1187 OPT_STRING('p', "parent", &parent_pattern, "regex",
1188 "regex filter to identify parent, see: '--sort parent'"),
1189 OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other,
1190 "Only display entries with parent-match"),
1191 OPT_CALLBACK_DEFAULT('g', "call-graph", &callchain_param,
1192 "print_type,threshold[,print_limit],order,sort_key[,branch],value",
1193 report_callchain_help, &report_parse_callchain_opt,
1194 callchain_default_opt),
1195 OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain,
1196 "Accumulate callchains of children and show total overhead as well. "
1197 "Enabled by default, use --no-children to disable."),
1198 OPT_INTEGER(0, "max-stack", &report.max_stack,
1199 "Set the maximum stack depth when parsing the callchain, "
1200 "anything beyond the specified depth will be ignored. "
1201 "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)),
1202 OPT_BOOLEAN('G', "inverted", &report.inverted_callchain,
1203 "alias for inverted call graph"),
1204 OPT_CALLBACK(0, "ignore-callees", NULL, "regex",
1205 "ignore callees of these functions in call graphs",
1206 report_parse_ignore_callees_opt),
1207 OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
1208 "only consider symbols in these dsos"),
1209 OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
1210 "only consider symbols in these comms"),
1211 OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]",
1212 "only consider symbols in these pids"),
1213 OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]",
1214 "only consider symbols in these tids"),
1215 OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
1216 "only consider these symbols"),
1217 OPT_STRING(0, "symbol-filter", &report.symbol_filter_str, "filter",
1218 "only show symbols that (partially) match with this filter"),
1219 OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str,
1220 "width[,width...]",
1221 "don't try to adjust column width, use these fixed values"),
1222 OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf.field_sep, "separator",
1223 "separator for columns, no spaces will be added between "
1224 "columns '.' is reserved."),
1225 OPT_BOOLEAN('U', "hide-unresolved", &symbol_conf.hide_unresolved,
1226 "Only display entries resolved to a symbol"),
1227 OPT_CALLBACK(0, "symfs", NULL, "directory",
1228 "Look for files with symbols relative to this directory",
1229 symbol__config_symfs),
1230 OPT_STRING('C', "cpu", &report.cpu_list, "cpu",
1231 "list of cpus to profile"),
1232 OPT_BOOLEAN('I', "show-info", &report.show_full_info,
1233 "Display extended information about perf.data file"),
1234 OPT_BOOLEAN(0, "source", &report.annotation_opts.annotate_src,
1235 "Interleave source code with assembly code (default)"),
1236 OPT_BOOLEAN(0, "asm-raw", &report.annotation_opts.show_asm_raw,
1237 "Display raw encoding of assembly instructions (default)"),
1238 OPT_STRING('M', "disassembler-style", &report.annotation_opts.disassembler_style, "disassembler style",
1239 "Specify disassembler style (e.g. -M intel for intel syntax)"),
1240 OPT_STRING(0, "prefix", &report.annotation_opts.prefix, "prefix",
1241 "Add prefix to source file path names in programs (with --prefix-strip)"),
1242 OPT_STRING(0, "prefix-strip", &report.annotation_opts.prefix_strip, "N",
1243 "Strip first N entries of source file path name in programs (with --prefix)"),
1244 OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,
1245 "Show a column with the sum of periods"),
1246 OPT_BOOLEAN_SET(0, "group", &symbol_conf.event_group, &report.group_set,
1247 "Show event group information together"),
1248 OPT_INTEGER(0, "group-sort-idx", &symbol_conf.group_sort_idx,
1249 "Sort the output by the event at the index n in group. "
1250 "If n is invalid, sort by the first event. "
1251 "WARNING: should be used on grouped events."),
1252 OPT_CALLBACK_NOOPT('b', "branch-stack", &branch_mode, "",
1253 "use branch records for per branch histogram filling",
1254 parse_branch_mode),
1255 OPT_BOOLEAN(0, "branch-history", &branch_call_mode,
1256 "add last branch records to call history"),
1257 OPT_STRING(0, "objdump", &report.annotation_opts.objdump_path, "path",
1258 "objdump binary to use for disassembly and annotations"),
1259 OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
1260 "Disable symbol demangling"),
1261 OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel,
1262 "Enable kernel symbol demangling"),
1263 OPT_BOOLEAN(0, "mem-mode", &report.mem_mode, "mem access profile"),
1264 OPT_INTEGER(0, "samples", &symbol_conf.res_sample,
1265 "Number of samples to save per histogram entry for individual browsing"),
1266 OPT_CALLBACK(0, "percent-limit", &report, "percent",
1267 "Don't show entries under that percent", parse_percent_limit),
1268 OPT_CALLBACK(0, "percentage", NULL, "relative|absolute",
1269 "how to display percentage of filtered entries", parse_filter_percentage),
1270 OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts",
1271 "Instruction Tracing options\n" ITRACE_HELP,
1272 itrace_parse_synth_opts),
1273 OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename,
1274 "Show full source file name path for source lines"),
1275 OPT_BOOLEAN(0, "show-ref-call-graph", &symbol_conf.show_ref_callgraph,
1276 "Show callgraph from reference event"),
1277 OPT_BOOLEAN(0, "stitch-lbr", &report.stitch_lbr,
1278 "Enable LBR callgraph stitching approach"),
1279 OPT_INTEGER(0, "socket-filter", &report.socket_filter,
1280 "only show processor socket that match with this filter"),
1281 OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace,
1282 "Show raw trace event output (do not use print fmt or plugins)"),
1283 OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy,
1284 "Show entries in a hierarchy"),
1285 OPT_CALLBACK_DEFAULT(0, "stdio-color", NULL, "mode",
1286 "'always' (default), 'never' or 'auto' only applicable to --stdio mode",
1287 stdio__config_color, "always"),
1288 OPT_STRING(0, "time", &report.time_str, "str",
1289 "Time span of interest (start,stop)"),
1290 OPT_BOOLEAN(0, "inline", &symbol_conf.inline_name,
1291 "Show inline function"),
1292 OPT_CALLBACK(0, "percent-type", &report.annotation_opts, "local-period",
1293 "Set percent type local/global-period/hits",
1294 annotate_parse_percent_type),
1295 OPT_BOOLEAN(0, "ns", &symbol_conf.nanosecs, "Show times in nanosecs"),
1296 OPT_CALLBACK(0, "time-quantum", &symbol_conf.time_quantum, "time (ms|us|ns|s)",
1297 "Set time quantum for time sort key (default 100ms)",
1298 parse_time_quantum),
1299 OPTS_EVSWITCH(&report.evswitch),
1300 OPT_BOOLEAN(0, "total-cycles", &report.total_cycles_mode,
1301 "Sort all blocks by 'Sampled Cycles%'"),
1302 OPT_END()
1303 };
1304 struct perf_data data = {
1305 .mode = PERF_DATA_MODE_READ,
1306 };
1307 int ret = hists__init();
1308 char sort_tmp[128];
1309
1310 if (ret < 0)
1311 return ret;
1312
1313 ret = perf_config(report__config, &report);
1314 if (ret)
1315 return ret;
1316
1317 argc = parse_options(argc, argv, options, report_usage, 0);
1318 if (argc) {
1319 /*
1320 * Special case: if there's an argument left then assume that
1321 * it's a symbol filter:
1322 */
1323 if (argc > 1)
1324 usage_with_options(report_usage, options);
1325
1326 report.symbol_filter_str = argv[0];
1327 }
1328
1329 if (annotate_check_args(&report.annotation_opts) < 0)
1330 return -EINVAL;
1331
1332 if (report.mmaps_mode)
1333 report.tasks_mode = true;
1334
1335 if (quiet)
1336 perf_quiet_option();
1337
1338 if (symbol_conf.vmlinux_name &&
1339 access(symbol_conf.vmlinux_name, R_OK)) {
1340 pr_err("Invalid file: %s\n", symbol_conf.vmlinux_name);
1341 return -EINVAL;
1342 }
1343 if (symbol_conf.kallsyms_name &&
1344 access(symbol_conf.kallsyms_name, R_OK)) {
1345 pr_err("Invalid file: %s\n", symbol_conf.kallsyms_name);
1346 return -EINVAL;
1347 }
1348
1349 if (report.inverted_callchain)
1350 callchain_param.order = ORDER_CALLER;
1351 if (symbol_conf.cumulate_callchain && !callchain_param.order_set)
1352 callchain_param.order = ORDER_CALLER;
1353
1354 if ((itrace_synth_opts.callchain || itrace_synth_opts.add_callchain) &&
1355 (int)itrace_synth_opts.callchain_sz > report.max_stack)
1356 report.max_stack = itrace_synth_opts.callchain_sz;
1357
1358 if (!input_name || !strlen(input_name)) {
1359 if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
1360 input_name = "-";
1361 else
1362 input_name = "perf.data";
1363 }
1364
1365 data.path = input_name;
1366 data.force = symbol_conf.force;
1367
1368 repeat:
1369 session = perf_session__new(&data, false, &report.tool);
1370 if (IS_ERR(session))
1371 return PTR_ERR(session);
1372
1373 ret = evswitch__init(&report.evswitch, session->evlist, stderr);
1374 if (ret)
1375 return ret;
1376
1377 if (zstd_init(&(session->zstd_data), 0) < 0)
1378 pr_warning("Decompression initialization failed. Reported data may be incomplete.\n");
1379
1380 if (report.queue_size) {
1381 ordered_events__set_alloc_size(&session->ordered_events,
1382 report.queue_size);
1383 }
1384
1385 session->itrace_synth_opts = &itrace_synth_opts;
1386
1387 report.session = session;
1388
1389 has_br_stack = perf_header__has_feat(&session->header,
1390 HEADER_BRANCH_STACK);
1391 if (evlist__combined_sample_type(session->evlist) & PERF_SAMPLE_STACK_USER)
1392 has_br_stack = false;
1393
1394 setup_forced_leader(&report, session->evlist);
1395
1396 if (symbol_conf.group_sort_idx && !session->evlist->nr_groups) {
1397 parse_options_usage(NULL, options, "group-sort-idx", 0);
1398 ret = -EINVAL;
1399 goto error;
1400 }
1401
1402 if (itrace_synth_opts.last_branch || itrace_synth_opts.add_last_branch)
1403 has_br_stack = true;
1404
1405 if (has_br_stack && branch_call_mode)
1406 symbol_conf.show_branchflag_count = true;
1407
1408 memset(&report.brtype_stat, 0, sizeof(struct branch_type_stat));
1409
1410 /*
1411 * Branch mode is a tristate:
1412 * -1 means default, so decide based on the file having branch data.
1413 * 0/1 means the user chose a mode.
1414 */
1415 if (((branch_mode == -1 && has_br_stack) || branch_mode == 1) &&
1416 !branch_call_mode) {
1417 sort__mode = SORT_MODE__BRANCH;
1418 symbol_conf.cumulate_callchain = false;
1419 }
1420 if (branch_call_mode) {
1421 callchain_param.key = CCKEY_ADDRESS;
1422 callchain_param.branch_callstack = true;
1423 symbol_conf.use_callchain = true;
1424 callchain_register_param(&callchain_param);
1425 if (sort_order == NULL)
1426 sort_order = "srcline,symbol,dso";
1427 }
1428
1429 if (report.mem_mode) {
1430 if (sort__mode == SORT_MODE__BRANCH) {
1431 pr_err("branch and mem mode incompatible\n");
1432 goto error;
1433 }
1434 sort__mode = SORT_MODE__MEMORY;
1435 symbol_conf.cumulate_callchain = false;
1436 }
1437
1438 if (symbol_conf.report_hierarchy) {
1439 /* disable incompatible options */
1440 symbol_conf.cumulate_callchain = false;
1441
1442 if (field_order) {
1443 pr_err("Error: --hierarchy and --fields options cannot be used together\n");
1444 parse_options_usage(report_usage, options, "F", 1);
1445 parse_options_usage(NULL, options, "hierarchy", 0);
1446 goto error;
1447 }
1448
1449 perf_hpp_list.need_collapse = true;
1450 }
1451
1452 if (report.use_stdio)
1453 use_browser = 0;
1454 else if (report.use_tui)
1455 use_browser = 1;
1456 else if (report.use_gtk)
1457 use_browser = 2;
1458
1459 /* Force tty output for header output and per-thread stat. */
1460 if (report.header || report.header_only || report.show_threads)
1461 use_browser = 0;
1462 if (report.header || report.header_only)
1463 report.tool.show_feat_hdr = SHOW_FEAT_HEADER;
1464 if (report.show_full_info)
1465 report.tool.show_feat_hdr = SHOW_FEAT_HEADER_FULL_INFO;
1466 if (report.stats_mode || report.tasks_mode)
1467 use_browser = 0;
1468 if (report.stats_mode && report.tasks_mode) {
1469 pr_err("Error: --tasks and --mmaps can't be used together with --stats\n");
1470 goto error;
1471 }
1472
1473 if (report.total_cycles_mode) {
1474 if (sort__mode != SORT_MODE__BRANCH)
1475 report.total_cycles_mode = false;
1476 else
1477 sort_order = NULL;
1478 }
1479
1480 if (strcmp(input_name, "-") != 0)
1481 setup_browser(true);
1482 else
1483 use_browser = 0;
1484
1485 if (sort_order && strstr(sort_order, "ipc")) {
1486 parse_options_usage(report_usage, options, "s", 1);
1487 goto error;
1488 }
1489
1490 if (sort_order && strstr(sort_order, "symbol")) {
1491 if (sort__mode == SORT_MODE__BRANCH) {
1492 snprintf(sort_tmp, sizeof(sort_tmp), "%s,%s",
1493 sort_order, "ipc_lbr");
1494 report.symbol_ipc = true;
1495 } else {
1496 snprintf(sort_tmp, sizeof(sort_tmp), "%s,%s",
1497 sort_order, "ipc_null");
1498 }
1499
1500 sort_order = sort_tmp;
1501 }
1502
1503 if ((last_key != K_SWITCH_INPUT_DATA && last_key != K_RELOAD) &&
1504 (setup_sorting(session->evlist) < 0)) {
1505 if (sort_order)
1506 parse_options_usage(report_usage, options, "s", 1);
1507 if (field_order)
1508 parse_options_usage(sort_order ? NULL : report_usage,
1509 options, "F", 1);
1510 goto error;
1511 }
1512
1513 if ((report.header || report.header_only) && !quiet) {
1514 perf_session__fprintf_info(session, stdout,
1515 report.show_full_info);
1516 if (report.header_only) {
1517 ret = 0;
1518 goto error;
1519 }
1520 } else if (use_browser == 0 && !quiet &&
1521 !report.stats_mode && !report.tasks_mode) {
1522 fputs("# To display the perf.data header info, please use --header/--header-only options.\n#\n",
1523 stdout);
1524 }
1525
1526 /*
1527 * Only in the TUI browser we are doing integrated annotation,
1528 * so don't allocate extra space that won't be used in the stdio
1529 * implementation.
1530 */
1531 if (ui__has_annotation() || report.symbol_ipc ||
1532 report.total_cycles_mode) {
1533 ret = symbol__annotation_init();
1534 if (ret < 0)
1535 goto error;
1536 /*
1537 * For searching by name on the "Browse map details".
1538 * providing it only in verbose mode not to bloat too
1539 * much struct symbol.
1540 */
1541 if (verbose > 0) {
1542 /*
1543 * XXX: Need to provide a less kludgy way to ask for
1544 * more space per symbol, the u32 is for the index on
1545 * the ui browser.
1546 * See symbol__browser_index.
1547 */
1548 symbol_conf.priv_size += sizeof(u32);
1549 symbol_conf.sort_by_name = true;
1550 }
1551 annotation_config__init(&report.annotation_opts);
1552 }
1553
1554 if (symbol__init(&session->header.env) < 0)
1555 goto error;
1556
1557 if (report.time_str) {
1558 ret = perf_time__parse_for_ranges(report.time_str, session,
1559 &report.ptime_range,
1560 &report.range_size,
1561 &report.range_num);
1562 if (ret < 0)
1563 goto error;
1564
1565 itrace_synth_opts__set_time_range(&itrace_synth_opts,
1566 report.ptime_range,
1567 report.range_num);
1568 }
1569
1570 if (session->tevent.pevent &&
1571 tep_set_function_resolver(session->tevent.pevent,
1572 machine__resolve_kernel_addr,
1573 &session->machines.host) < 0) {
1574 pr_err("%s: failed to set libtraceevent function resolver\n",
1575 __func__);
1576 return -1;
1577 }
1578
1579 sort__setup_elide(stdout);
1580
1581 ret = __cmd_report(&report);
1582 if (ret == K_SWITCH_INPUT_DATA || ret == K_RELOAD) {
1583 perf_session__delete(session);
1584 last_key = K_SWITCH_INPUT_DATA;
1585 goto repeat;
1586 } else
1587 ret = 0;
1588
1589 error:
1590 if (report.ptime_range) {
1591 itrace_synth_opts__clear_time_range(&itrace_synth_opts);
1592 zfree(&report.ptime_range);
1593 }
1594
1595 if (report.block_reports) {
1596 block_info__free_report(report.block_reports,
1597 report.nr_block_reports);
1598 report.block_reports = NULL;
1599 }
1600
1601 zstd_fini(&(session->zstd_data));
1602 perf_session__delete(session);
1603 return ret;
1604 }
Linux with added FPC-III support