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HID: hiddev: Fix slab-out-of-bounds write in hiddev_ioctl_usage()
[linux/fpc-iii.git] / tools / perf / builtin-report.c
blob74dd196acdac3b8ca854b9a963aa639f78813955
1 /*
2 * builtin-report.c
3 *
4 * Builtin report command: Analyze the perf.data input file,
5 * look up and read DSOs and symbol information and display
6 * a histogram of results, along various sorting keys.
7 */
8 #include "builtin.h"
9
10 #include "util/util.h"
11 #include "util/cache.h"
12
13 #include "util/annotate.h"
14 #include "util/color.h"
15 #include <linux/list.h>
16 #include <linux/rbtree.h>
17 #include "util/symbol.h"
18 #include "util/callchain.h"
19 #include "util/strlist.h"
20 #include "util/values.h"
21
22 #include "perf.h"
23 #include "util/debug.h"
24 #include "util/evlist.h"
25 #include "util/evsel.h"
26 #include "util/header.h"
27 #include "util/session.h"
28 #include "util/tool.h"
29
30 #include "util/parse-options.h"
31 #include "util/parse-events.h"
32
33 #include "util/thread.h"
34 #include "util/sort.h"
35 #include "util/hist.h"
36 #include "util/data.h"
37 #include "arch/common.h"
38
39 #include "util/auxtrace.h"
40
41 #include <dlfcn.h>
42 #include <linux/bitmap.h>
43
44 struct report {
45 struct perf_tool tool;
46 struct perf_session *session;
47 bool use_tui, use_gtk, use_stdio;
48 bool hide_unresolved;
49 bool dont_use_callchains;
50 bool show_full_info;
51 bool show_threads;
52 bool inverted_callchain;
53 bool mem_mode;
54 bool header;
55 bool header_only;
56 bool nonany_branch_mode;
57 int max_stack;
58 struct perf_read_values show_threads_values;
59 const char *pretty_printing_style;
60 const char *cpu_list;
61 const char *symbol_filter_str;
62 float min_percent;
63 u64 nr_entries;
64 u64 queue_size;
65 int socket_filter;
66 DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
67 };
68
69 static int report__config(const char *var, const char *value, void *cb)
70 {
71 struct report *rep = cb;
72
73 if (!strcmp(var, "report.group")) {
74 symbol_conf.event_group = perf_config_bool(var, value);
75 return 0;
76 }
77 if (!strcmp(var, "report.percent-limit")) {
78 rep->min_percent = strtof(value, NULL);
79 return 0;
80 }
81 if (!strcmp(var, "report.children")) {
82 symbol_conf.cumulate_callchain = perf_config_bool(var, value);
83 return 0;
84 }
85 if (!strcmp(var, "report.queue-size")) {
86 rep->queue_size = perf_config_u64(var, value);
87 return 0;
88 }
89
90 return perf_default_config(var, value, cb);
91 }
92
93 static int hist_iter__report_callback(struct hist_entry_iter *iter,
94 struct addr_location *al, bool single,
95 void *arg)
96 {
97 int err = 0;
98 struct report *rep = arg;
99 struct hist_entry *he = iter->he;
100 struct perf_evsel *evsel = iter->evsel;
101 struct mem_info *mi;
102 struct branch_info *bi;
103
104 if (!ui__has_annotation())
105 return 0;
106
107 hist__account_cycles(iter->sample->branch_stack, al, iter->sample,
108 rep->nonany_branch_mode);
109
110 if (sort__mode == SORT_MODE__BRANCH) {
111 bi = he->branch_info;
112 err = addr_map_symbol__inc_samples(&bi->from, evsel->idx);
113 if (err)
114 goto out;
115
116 err = addr_map_symbol__inc_samples(&bi->to, evsel->idx);
117
118 } else if (rep->mem_mode) {
119 mi = he->mem_info;
120 err = addr_map_symbol__inc_samples(&mi->daddr, evsel->idx);
121 if (err)
122 goto out;
123
124 err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr);
125
126 } else if (symbol_conf.cumulate_callchain) {
127 if (single)
128 err = hist_entry__inc_addr_samples(he, evsel->idx,
129 al->addr);
130 } else {
131 err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr);
132 }
133
134 out:
135 return err;
136 }
137
138 static int process_sample_event(struct perf_tool *tool,
139 union perf_event *event,
140 struct perf_sample *sample,
141 struct perf_evsel *evsel,
142 struct machine *machine)
143 {
144 struct report *rep = container_of(tool, struct report, tool);
145 struct addr_location al;
146 struct hist_entry_iter iter = {
147 .evsel = evsel,
148 .sample = sample,
149 .hide_unresolved = rep->hide_unresolved,
150 .add_entry_cb = hist_iter__report_callback,
151 };
152 int ret = 0;
153
154 if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) {
155 pr_debug("problem processing %d event, skipping it.\n",
156 event->header.type);
157 return -1;
158 }
159
160 if (rep->hide_unresolved && al.sym == NULL)
161 goto out_put;
162
163 if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap))
164 goto out_put;
165
166 if (sort__mode == SORT_MODE__BRANCH) {
167 /*
168 * A non-synthesized event might not have a branch stack if
169 * branch stacks have been synthesized (using itrace options).
170 */
171 if (!sample->branch_stack)
172 goto out_put;
173 iter.ops = &hist_iter_branch;
174 } else if (rep->mem_mode) {
175 iter.ops = &hist_iter_mem;
176 } else if (symbol_conf.cumulate_callchain) {
177 iter.ops = &hist_iter_cumulative;
178 } else {
179 iter.ops = &hist_iter_normal;
180 }
181
182 if (al.map != NULL)
183 al.map->dso->hit = 1;
184
185 ret = hist_entry_iter__add(&iter, &al, rep->max_stack, rep);
186 if (ret < 0)
187 pr_debug("problem adding hist entry, skipping event\n");
188 out_put:
189 addr_location__put(&al);
190 return ret;
191 }
192
193 static int process_read_event(struct perf_tool *tool,
194 union perf_event *event,
195 struct perf_sample *sample __maybe_unused,
196 struct perf_evsel *evsel,
197 struct machine *machine __maybe_unused)
198 {
199 struct report *rep = container_of(tool, struct report, tool);
200
201 if (rep->show_threads) {
202 const char *name = evsel ? perf_evsel__name(evsel) : "unknown";
203 perf_read_values_add_value(&rep->show_threads_values,
204 event->read.pid, event->read.tid,
205 event->read.id,
206 name,
207 event->read.value);
208 }
209
210 dump_printf(": %d %d %s %" PRIu64 "\n", event->read.pid, event->read.tid,
211 evsel ? perf_evsel__name(evsel) : "FAIL",
212 event->read.value);
213
214 return 0;
215 }
216
217 /* For pipe mode, sample_type is not currently set */
218 static int report__setup_sample_type(struct report *rep)
219 {
220 struct perf_session *session = rep->session;
221 u64 sample_type = perf_evlist__combined_sample_type(session->evlist);
222 bool is_pipe = perf_data_file__is_pipe(session->file);
223
224 if (session->itrace_synth_opts->callchain ||
225 (!is_pipe &&
226 perf_header__has_feat(&session->header, HEADER_AUXTRACE) &&
227 !session->itrace_synth_opts->set))
228 sample_type |= PERF_SAMPLE_CALLCHAIN;
229
230 if (session->itrace_synth_opts->last_branch)
231 sample_type |= PERF_SAMPLE_BRANCH_STACK;
232
233 if (!is_pipe && !(sample_type & PERF_SAMPLE_CALLCHAIN)) {
234 if (sort__has_parent) {
235 ui__error("Selected --sort parent, but no "
236 "callchain data. Did you call "
237 "'perf record' without -g?\n");
238 return -EINVAL;
239 }
240 if (symbol_conf.use_callchain) {
241 ui__error("Selected -g or --branch-history but no "
242 "callchain data. Did\n"
243 "you call 'perf record' without -g?\n");
244 return -1;
245 }
246 } else if (!rep->dont_use_callchains &&
247 callchain_param.mode != CHAIN_NONE &&
248 !symbol_conf.use_callchain) {
249 symbol_conf.use_callchain = true;
250 if (callchain_register_param(&callchain_param) < 0) {
251 ui__error("Can't register callchain params.\n");
252 return -EINVAL;
253 }
254 }
255
256 if (symbol_conf.cumulate_callchain) {
257 /* Silently ignore if callchain is missing */
258 if (!(sample_type & PERF_SAMPLE_CALLCHAIN)) {
259 symbol_conf.cumulate_callchain = false;
260 perf_hpp__cancel_cumulate();
261 }
262 }
263
264 if (sort__mode == SORT_MODE__BRANCH) {
265 if (!is_pipe &&
266 !(sample_type & PERF_SAMPLE_BRANCH_STACK)) {
267 ui__error("Selected -b but no branch data. "
268 "Did you call perf record without -b?\n");
269 return -1;
270 }
271 }
272
273 if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain) {
274 if ((sample_type & PERF_SAMPLE_REGS_USER) &&
275 (sample_type & PERF_SAMPLE_STACK_USER))
276 callchain_param.record_mode = CALLCHAIN_DWARF;
277 else if (sample_type & PERF_SAMPLE_BRANCH_STACK)
278 callchain_param.record_mode = CALLCHAIN_LBR;
279 else
280 callchain_param.record_mode = CALLCHAIN_FP;
281 }
282
283 /* ??? handle more cases than just ANY? */
284 if (!(perf_evlist__combined_branch_type(session->evlist) &
285 PERF_SAMPLE_BRANCH_ANY))
286 rep->nonany_branch_mode = true;
287
288 return 0;
289 }
290
291 static void sig_handler(int sig __maybe_unused)
292 {
293 session_done = 1;
294 }
295
296 static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report *rep,
297 const char *evname, FILE *fp)
298 {
299 size_t ret;
300 char unit;
301 unsigned long nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE];
302 u64 nr_events = hists->stats.total_period;
303 struct perf_evsel *evsel = hists_to_evsel(hists);
304 char buf[512];
305 size_t size = sizeof(buf);
306 int socked_id = hists->socket_filter;
307
308 if (symbol_conf.filter_relative) {
309 nr_samples = hists->stats.nr_non_filtered_samples;
310 nr_events = hists->stats.total_non_filtered_period;
311 }
312
313 if (perf_evsel__is_group_event(evsel)) {
314 struct perf_evsel *pos;
315
316 perf_evsel__group_desc(evsel, buf, size);
317 evname = buf;
318
319 for_each_group_member(pos, evsel) {
320 const struct hists *pos_hists = evsel__hists(pos);
321
322 if (symbol_conf.filter_relative) {
323 nr_samples += pos_hists->stats.nr_non_filtered_samples;
324 nr_events += pos_hists->stats.total_non_filtered_period;
325 } else {
326 nr_samples += pos_hists->stats.nr_events[PERF_RECORD_SAMPLE];
327 nr_events += pos_hists->stats.total_period;
328 }
329 }
330 }
331
332 nr_samples = convert_unit(nr_samples, &unit);
333 ret = fprintf(fp, "# Samples: %lu%c", nr_samples, unit);
334 if (evname != NULL)
335 ret += fprintf(fp, " of event '%s'", evname);
336
337 if (symbol_conf.show_ref_callgraph && evname && strstr(evname, "call-graph=no")) {
338 ret += fprintf(fp, ", show reference callgraph");
339 }
340
341 if (rep->mem_mode) {
342 ret += fprintf(fp, "\n# Total weight : %" PRIu64, nr_events);
343 ret += fprintf(fp, "\n# Sort order : %s", sort_order ? : default_mem_sort_order);
344 } else
345 ret += fprintf(fp, "\n# Event count (approx.): %" PRIu64, nr_events);
346
347 if (socked_id > -1)
348 ret += fprintf(fp, "\n# Processor Socket: %d", socked_id);
349
350 return ret + fprintf(fp, "\n#\n");
351 }
352
353 static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist,
354 struct report *rep,
355 const char *help)
356 {
357 struct perf_evsel *pos;
358
359 fprintf(stdout, "#\n# Total Lost Samples: %" PRIu64 "\n#\n", evlist->stats.total_lost_samples);
360 evlist__for_each(evlist, pos) {
361 struct hists *hists = evsel__hists(pos);
362 const char *evname = perf_evsel__name(pos);
363
364 if (symbol_conf.event_group &&
365 !perf_evsel__is_group_leader(pos))
366 continue;
367
368 hists__fprintf_nr_sample_events(hists, rep, evname, stdout);
369 hists__fprintf(hists, true, 0, 0, rep->min_percent, stdout);
370 fprintf(stdout, "\n\n");
371 }
372
373 if (sort_order == NULL &&
374 parent_pattern == default_parent_pattern)
375 fprintf(stdout, "#\n# (%s)\n#\n", help);
376
377 if (rep->show_threads) {
378 bool style = !strcmp(rep->pretty_printing_style, "raw");
379 perf_read_values_display(stdout, &rep->show_threads_values,
380 style);
381 perf_read_values_destroy(&rep->show_threads_values);
382 }
383
384 return 0;
385 }
386
387 static void report__warn_kptr_restrict(const struct report *rep)
388 {
389 struct map *kernel_map = machine__kernel_map(&rep->session->machines.host);
390 struct kmap *kernel_kmap = kernel_map ? map__kmap(kernel_map) : NULL;
391
392 if (kernel_map == NULL ||
393 (kernel_map->dso->hit &&
394 (kernel_kmap->ref_reloc_sym == NULL ||
395 kernel_kmap->ref_reloc_sym->addr == 0))) {
396 const char *desc =
397 "As no suitable kallsyms nor vmlinux was found, kernel samples\n"
398 "can't be resolved.";
399
400 if (kernel_map) {
401 const struct dso *kdso = kernel_map->dso;
402 if (!RB_EMPTY_ROOT(&kdso->symbols[MAP__FUNCTION])) {
403 desc = "If some relocation was applied (e.g. "
404 "kexec) symbols may be misresolved.";
405 }
406 }
407
408 ui__warning(
409 "Kernel address maps (/proc/{kallsyms,modules}) were restricted.\n\n"
410 "Check /proc/sys/kernel/kptr_restrict before running 'perf record'.\n\n%s\n\n"
411 "Samples in kernel modules can't be resolved as well.\n\n",
412 desc);
413 }
414 }
415
416 static int report__gtk_browse_hists(struct report *rep, const char *help)
417 {
418 int (*hist_browser)(struct perf_evlist *evlist, const char *help,
419 struct hist_browser_timer *timer, float min_pcnt);
420
421 hist_browser = dlsym(perf_gtk_handle, "perf_evlist__gtk_browse_hists");
422
423 if (hist_browser == NULL) {
424 ui__error("GTK browser not found!\n");
425 return -1;
426 }
427
428 return hist_browser(rep->session->evlist, help, NULL, rep->min_percent);
429 }
430
431 static int report__browse_hists(struct report *rep)
432 {
433 int ret;
434 struct perf_session *session = rep->session;
435 struct perf_evlist *evlist = session->evlist;
436 const char *help = "For a higher level overview, try: perf report --sort comm,dso";
437
438 switch (use_browser) {
439 case 1:
440 ret = perf_evlist__tui_browse_hists(evlist, help, NULL,
441 rep->min_percent,
442 &session->header.env);
443 /*
444 * Usually "ret" is the last pressed key, and we only
445 * care if the key notifies us to switch data file.
446 */
447 if (ret != K_SWITCH_INPUT_DATA)
448 ret = 0;
449 break;
450 case 2:
451 ret = report__gtk_browse_hists(rep, help);
452 break;
453 default:
454 ret = perf_evlist__tty_browse_hists(evlist, rep, help);
455 break;
456 }
457
458 return ret;
459 }
460
461 static void report__collapse_hists(struct report *rep)
462 {
463 struct ui_progress prog;
464 struct perf_evsel *pos;
465
466 ui_progress__init(&prog, rep->nr_entries, "Merging related events...");
467
468 evlist__for_each(rep->session->evlist, pos) {
469 struct hists *hists = evsel__hists(pos);
470
471 if (pos->idx == 0)
472 hists->symbol_filter_str = rep->symbol_filter_str;
473
474 hists->socket_filter = rep->socket_filter;
475
476 hists__collapse_resort(hists, &prog);
477
478 /* Non-group events are considered as leader */
479 if (symbol_conf.event_group &&
480 !perf_evsel__is_group_leader(pos)) {
481 struct hists *leader_hists = evsel__hists(pos->leader);
482
483 hists__match(leader_hists, hists);
484 hists__link(leader_hists, hists);
485 }
486 }
487
488 ui_progress__finish();
489 }
490
491 static void report__output_resort(struct report *rep)
492 {
493 struct ui_progress prog;
494 struct perf_evsel *pos;
495
496 ui_progress__init(&prog, rep->nr_entries, "Sorting events for output...");
497
498 evlist__for_each(rep->session->evlist, pos)
499 hists__output_resort(evsel__hists(pos), &prog);
500
501 ui_progress__finish();
502 }
503
504 static int __cmd_report(struct report *rep)
505 {
506 int ret;
507 struct perf_session *session = rep->session;
508 struct perf_evsel *pos;
509 struct perf_data_file *file = session->file;
510
511 signal(SIGINT, sig_handler);
512
513 if (rep->cpu_list) {
514 ret = perf_session__cpu_bitmap(session, rep->cpu_list,
515 rep->cpu_bitmap);
516 if (ret)
517 return ret;
518 }
519
520 if (rep->show_threads)
521 perf_read_values_init(&rep->show_threads_values);
522
523 ret = report__setup_sample_type(rep);
524 if (ret)
525 return ret;
526
527 ret = perf_session__process_events(session);
528 if (ret)
529 return ret;
530
531 report__warn_kptr_restrict(rep);
532
533 evlist__for_each(session->evlist, pos)
534 rep->nr_entries += evsel__hists(pos)->nr_entries;
535
536 if (use_browser == 0) {
537 if (verbose > 3)
538 perf_session__fprintf(session, stdout);
539
540 if (verbose > 2)
541 perf_session__fprintf_dsos(session, stdout);
542
543 if (dump_trace) {
544 perf_session__fprintf_nr_events(session, stdout);
545 perf_evlist__fprintf_nr_events(session->evlist, stdout);
546 return 0;
547 }
548 }
549
550 report__collapse_hists(rep);
551
552 if (session_done())
553 return 0;
554
555 /*
556 * recalculate number of entries after collapsing since it
557 * might be changed during the collapse phase.
558 */
559 rep->nr_entries = 0;
560 evlist__for_each(session->evlist, pos)
561 rep->nr_entries += evsel__hists(pos)->nr_entries;
562
563 if (rep->nr_entries == 0) {
564 ui__error("The %s file has no samples!\n", file->path);
565 return 0;
566 }
567
568 report__output_resort(rep);
569
570 return report__browse_hists(rep);
571 }
572
573 static int
574 report_parse_callchain_opt(const struct option *opt, const char *arg, int unset)
575 {
576 struct report *rep = (struct report *)opt->value;
577
578 /*
579 * --no-call-graph
580 */
581 if (unset) {
582 rep->dont_use_callchains = true;
583 return 0;
584 }
585
586 return parse_callchain_report_opt(arg);
587 }
588
589 int
590 report_parse_ignore_callees_opt(const struct option *opt __maybe_unused,
591 const char *arg, int unset __maybe_unused)
592 {
593 if (arg) {
594 int err = regcomp(&ignore_callees_regex, arg, REG_EXTENDED);
595 if (err) {
596 char buf[BUFSIZ];
597 regerror(err, &ignore_callees_regex, buf, sizeof(buf));
598 pr_err("Invalid --ignore-callees regex: %s\n%s", arg, buf);
599 return -1;
600 }
601 have_ignore_callees = 1;
602 }
603
604 return 0;
605 }
606
607 static int
608 parse_branch_mode(const struct option *opt __maybe_unused,
609 const char *str __maybe_unused, int unset)
610 {
611 int *branch_mode = opt->value;
612
613 *branch_mode = !unset;
614 return 0;
615 }
616
617 static int
618 parse_percent_limit(const struct option *opt, const char *str,
619 int unset __maybe_unused)
620 {
621 struct report *rep = opt->value;
622
623 rep->min_percent = strtof(str, NULL);
624 return 0;
625 }
626
627 #define CALLCHAIN_DEFAULT_OPT "graph,0.5,caller,function"
628
629 const char report_callchain_help[] = "Display call graph (stack chain/backtrace):\n\n"
630 CALLCHAIN_REPORT_HELP
631 "\n\t\t\t\tDefault: " CALLCHAIN_DEFAULT_OPT;
632
633 int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
634 {
635 struct perf_session *session;
636 struct itrace_synth_opts itrace_synth_opts = { .set = 0, };
637 struct stat st;
638 bool has_br_stack = false;
639 int branch_mode = -1;
640 bool branch_call_mode = false;
641 char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT;
642 const char * const report_usage[] = {
643 "perf report [<options>]",
644 NULL
645 };
646 struct report report = {
647 .tool = {
648 .sample = process_sample_event,
649 .mmap = perf_event__process_mmap,
650 .mmap2 = perf_event__process_mmap2,
651 .comm = perf_event__process_comm,
652 .exit = perf_event__process_exit,
653 .fork = perf_event__process_fork,
654 .lost = perf_event__process_lost,
655 .read = process_read_event,
656 .attr = perf_event__process_attr,
657 .tracing_data = perf_event__process_tracing_data,
658 .build_id = perf_event__process_build_id,
659 .id_index = perf_event__process_id_index,
660 .auxtrace_info = perf_event__process_auxtrace_info,
661 .auxtrace = perf_event__process_auxtrace,
662 .ordered_events = true,
663 .ordering_requires_timestamps = true,
664 },
665 .max_stack = PERF_MAX_STACK_DEPTH,
666 .pretty_printing_style = "normal",
667 .socket_filter = -1,
668 };
669 const struct option options[] = {
670 OPT_STRING('i', "input", &input_name, "file",
671 "input file name"),
672 OPT_INCR('v', "verbose", &verbose,
673 "be more verbose (show symbol address, etc)"),
674 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
675 "dump raw trace in ASCII"),
676 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
677 "file", "vmlinux pathname"),
678 OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
679 "file", "kallsyms pathname"),
680 OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"),
681 OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
682 "load module symbols - WARNING: use only with -k and LIVE kernel"),
683 OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
684 "Show a column with the number of samples"),
685 OPT_BOOLEAN('T', "threads", &report.show_threads,
686 "Show per-thread event counters"),
687 OPT_STRING(0, "pretty", &report.pretty_printing_style, "key",
688 "pretty printing style key: normal raw"),
689 OPT_BOOLEAN(0, "tui", &report.use_tui, "Use the TUI interface"),
690 OPT_BOOLEAN(0, "gtk", &report.use_gtk, "Use the GTK2 interface"),
691 OPT_BOOLEAN(0, "stdio", &report.use_stdio,
692 "Use the stdio interface"),
693 OPT_BOOLEAN(0, "header", &report.header, "Show data header."),
694 OPT_BOOLEAN(0, "header-only", &report.header_only,
695 "Show only data header."),
696 OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
697 "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..."
698 " Please refer the man page for the complete list."),
699 OPT_STRING('F', "fields", &field_order, "key[,keys...]",
700 "output field(s): overhead, period, sample plus all of sort keys"),
701 OPT_BOOLEAN(0, "show-cpu-utilization", &symbol_conf.show_cpu_utilization,
702 "Show sample percentage for different cpu modes"),
703 OPT_BOOLEAN_FLAG(0, "showcpuutilization", &symbol_conf.show_cpu_utilization,
704 "Show sample percentage for different cpu modes", PARSE_OPT_HIDDEN),
705 OPT_STRING('p', "parent", &parent_pattern, "regex",
706 "regex filter to identify parent, see: '--sort parent'"),
707 OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other,
708 "Only display entries with parent-match"),
709 OPT_CALLBACK_DEFAULT('g', "call-graph", &report,
710 "print_type,threshold[,print_limit],order,sort_key[,branch]",
711 report_callchain_help, &report_parse_callchain_opt,
712 callchain_default_opt),
713 OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain,
714 "Accumulate callchains of children and show total overhead as well"),
715 OPT_INTEGER(0, "max-stack", &report.max_stack,
716 "Set the maximum stack depth when parsing the callchain, "
717 "anything beyond the specified depth will be ignored. "
718 "Default: " __stringify(PERF_MAX_STACK_DEPTH)),
719 OPT_BOOLEAN('G', "inverted", &report.inverted_callchain,
720 "alias for inverted call graph"),
721 OPT_CALLBACK(0, "ignore-callees", NULL, "regex",
722 "ignore callees of these functions in call graphs",
723 report_parse_ignore_callees_opt),
724 OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
725 "only consider symbols in these dsos"),
726 OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
727 "only consider symbols in these comms"),
728 OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]",
729 "only consider symbols in these pids"),
730 OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]",
731 "only consider symbols in these tids"),
732 OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
733 "only consider these symbols"),
734 OPT_STRING(0, "symbol-filter", &report.symbol_filter_str, "filter",
735 "only show symbols that (partially) match with this filter"),
736 OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str,
737 "width[,width...]",
738 "don't try to adjust column width, use these fixed values"),
739 OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf.field_sep, "separator",
740 "separator for columns, no spaces will be added between "
741 "columns '.' is reserved."),
742 OPT_BOOLEAN('U', "hide-unresolved", &report.hide_unresolved,
743 "Only display entries resolved to a symbol"),
744 OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
745 "Look for files with symbols relative to this directory"),
746 OPT_STRING('C', "cpu", &report.cpu_list, "cpu",
747 "list of cpus to profile"),
748 OPT_BOOLEAN('I', "show-info", &report.show_full_info,
749 "Display extended information about perf.data file"),
750 OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src,
751 "Interleave source code with assembly code (default)"),
752 OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw,
753 "Display raw encoding of assembly instructions (default)"),
754 OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style",
755 "Specify disassembler style (e.g. -M intel for intel syntax)"),
756 OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,
757 "Show a column with the sum of periods"),
758 OPT_BOOLEAN(0, "group", &symbol_conf.event_group,
759 "Show event group information together"),
760 OPT_CALLBACK_NOOPT('b', "branch-stack", &branch_mode, "",
761 "use branch records for per branch histogram filling",
762 parse_branch_mode),
763 OPT_BOOLEAN(0, "branch-history", &branch_call_mode,
764 "add last branch records to call history"),
765 OPT_STRING(0, "objdump", &objdump_path, "path",
766 "objdump binary to use for disassembly and annotations"),
767 OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
768 "Disable symbol demangling"),
769 OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel,
770 "Enable kernel symbol demangling"),
771 OPT_BOOLEAN(0, "mem-mode", &report.mem_mode, "mem access profile"),
772 OPT_CALLBACK(0, "percent-limit", &report, "percent",
773 "Don't show entries under that percent", parse_percent_limit),
774 OPT_CALLBACK(0, "percentage", NULL, "relative|absolute",
775 "how to display percentage of filtered entries", parse_filter_percentage),
776 OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts",
777 "Instruction Tracing options",
778 itrace_parse_synth_opts),
779 OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename,
780 "Show full source file name path for source lines"),
781 OPT_BOOLEAN(0, "show-ref-call-graph", &symbol_conf.show_ref_callgraph,
782 "Show callgraph from reference event"),
783 OPT_INTEGER(0, "socket-filter", &report.socket_filter,
784 "only show processor socket that match with this filter"),
785 OPT_END()
786 };
787 struct perf_data_file file = {
788 .mode = PERF_DATA_MODE_READ,
789 };
790 int ret = hists__init();
791
792 if (ret < 0)
793 return ret;
794
795 perf_config(report__config, &report);
796
797 argc = parse_options(argc, argv, options, report_usage, 0);
798
799 if (symbol_conf.vmlinux_name &&
800 access(symbol_conf.vmlinux_name, R_OK)) {
801 pr_err("Invalid file: %s\n", symbol_conf.vmlinux_name);
802 return -EINVAL;
803 }
804 if (symbol_conf.kallsyms_name &&
805 access(symbol_conf.kallsyms_name, R_OK)) {
806 pr_err("Invalid file: %s\n", symbol_conf.kallsyms_name);
807 return -EINVAL;
808 }
809
810 if (report.use_stdio)
811 use_browser = 0;
812 else if (report.use_tui)
813 use_browser = 1;
814 else if (report.use_gtk)
815 use_browser = 2;
816
817 if (report.inverted_callchain)
818 callchain_param.order = ORDER_CALLER;
819 if (symbol_conf.cumulate_callchain && !callchain_param.order_set)
820 callchain_param.order = ORDER_CALLER;
821
822 if (itrace_synth_opts.callchain &&
823 (int)itrace_synth_opts.callchain_sz > report.max_stack)
824 report.max_stack = itrace_synth_opts.callchain_sz;
825
826 if (!input_name || !strlen(input_name)) {
827 if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
828 input_name = "-";
829 else
830 input_name = "perf.data";
831 }
832
833 file.path = input_name;
834 file.force = symbol_conf.force;
835
836 repeat:
837 session = perf_session__new(&file, false, &report.tool);
838 if (session == NULL)
839 return -1;
840
841 if (report.queue_size) {
842 ordered_events__set_alloc_size(&session->ordered_events,
843 report.queue_size);
844 }
845
846 session->itrace_synth_opts = &itrace_synth_opts;
847
848 report.session = session;
849
850 has_br_stack = perf_header__has_feat(&session->header,
851 HEADER_BRANCH_STACK);
852
853 if (itrace_synth_opts.last_branch)
854 has_br_stack = true;
855
856 /*
857 * Branch mode is a tristate:
858 * -1 means default, so decide based on the file having branch data.
859 * 0/1 means the user chose a mode.
860 */
861 if (((branch_mode == -1 && has_br_stack) || branch_mode == 1) &&
862 !branch_call_mode) {
863 sort__mode = SORT_MODE__BRANCH;
864 symbol_conf.cumulate_callchain = false;
865 }
866 if (branch_call_mode) {
867 callchain_param.key = CCKEY_ADDRESS;
868 callchain_param.branch_callstack = 1;
869 symbol_conf.use_callchain = true;
870 callchain_register_param(&callchain_param);
871 if (sort_order == NULL)
872 sort_order = "srcline,symbol,dso";
873 }
874
875 if (report.mem_mode) {
876 if (sort__mode == SORT_MODE__BRANCH) {
877 pr_err("branch and mem mode incompatible\n");
878 goto error;
879 }
880 sort__mode = SORT_MODE__MEMORY;
881 symbol_conf.cumulate_callchain = false;
882 }
883
884 if (setup_sorting() < 0) {
885 if (sort_order)
886 parse_options_usage(report_usage, options, "s", 1);
887 if (field_order)
888 parse_options_usage(sort_order ? NULL : report_usage,
889 options, "F", 1);
890 goto error;
891 }
892
893 /* Force tty output for header output and per-thread stat. */
894 if (report.header || report.header_only || report.show_threads)
895 use_browser = 0;
896
897 if (strcmp(input_name, "-") != 0)
898 setup_browser(true);
899 else
900 use_browser = 0;
901
902 if (report.header || report.header_only) {
903 perf_session__fprintf_info(session, stdout,
904 report.show_full_info);
905 if (report.header_only) {
906 ret = 0;
907 goto error;
908 }
909 } else if (use_browser == 0) {
910 fputs("# To display the perf.data header info, please use --header/--header-only options.\n#\n",
911 stdout);
912 }
913
914 /*
915 * Only in the TUI browser we are doing integrated annotation,
916 * so don't allocate extra space that won't be used in the stdio
917 * implementation.
918 */
919 if (ui__has_annotation()) {
920 symbol_conf.priv_size = sizeof(struct annotation);
921 machines__set_symbol_filter(&session->machines,
922 symbol__annotate_init);
923 /*
924 * For searching by name on the "Browse map details".
925 * providing it only in verbose mode not to bloat too
926 * much struct symbol.
927 */
928 if (verbose) {
929 /*
930 * XXX: Need to provide a less kludgy way to ask for
931 * more space per symbol, the u32 is for the index on
932 * the ui browser.
933 * See symbol__browser_index.
934 */
935 symbol_conf.priv_size += sizeof(u32);
936 symbol_conf.sort_by_name = true;
937 }
938 }
939
940 if (symbol__init(&session->header.env) < 0)
941 goto error;
942
943 if (argc) {
944 /*
945 * Special case: if there's an argument left then assume that
946 * it's a symbol filter:
947 */
948 if (argc > 1)
949 usage_with_options(report_usage, options);
950
951 report.symbol_filter_str = argv[0];
952 }
953
954 sort__setup_elide(stdout);
955
956 ret = __cmd_report(&report);
957 if (ret == K_SWITCH_INPUT_DATA) {
958 perf_session__delete(session);
959 goto repeat;
960 } else
961 ret = 0;
962
963 error:
964 perf_session__delete(session);
965 return ret;
966 }
Linux with added FPC-III support