xref: /linux/tools/perf/builtin-report.c (revision fc24d7c25c9d880ae012548d522fe13caee556ed)
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 
12 #include "util/annotate.h"
13 #include "util/color.h"
14 #include <linux/list.h>
15 #include "util/cache.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 "arch/common.h"
37 
38 #include <linux/bitmap.h>
39 
40 struct perf_report {
41 	struct perf_tool	tool;
42 	struct perf_session	*session;
43 	bool			force, use_tui, use_gtk, use_stdio;
44 	bool			hide_unresolved;
45 	bool			dont_use_callchains;
46 	bool			show_full_info;
47 	bool			show_threads;
48 	bool			inverted_callchain;
49 	struct perf_read_values	show_threads_values;
50 	const char		*pretty_printing_style;
51 	symbol_filter_t		annotate_init;
52 	const char		*cpu_list;
53 	const char		*symbol_filter_str;
54 	DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
55 };
56 
57 static int perf_report__add_branch_hist_entry(struct perf_tool *tool,
58 					struct addr_location *al,
59 					struct perf_sample *sample,
60 					struct perf_evsel *evsel,
61 				      struct machine *machine)
62 {
63 	struct perf_report *rep = container_of(tool, struct perf_report, tool);
64 	struct symbol *parent = NULL;
65 	int err = 0;
66 	unsigned i;
67 	struct hist_entry *he;
68 	struct branch_info *bi, *bx;
69 
70 	if ((sort__has_parent || symbol_conf.use_callchain)
71 	    && sample->callchain) {
72 		err = machine__resolve_callchain(machine, evsel, al->thread,
73 						 sample, &parent);
74 		if (err)
75 			return err;
76 	}
77 
78 	bi = machine__resolve_bstack(machine, al->thread,
79 				     sample->branch_stack);
80 	if (!bi)
81 		return -ENOMEM;
82 
83 	for (i = 0; i < sample->branch_stack->nr; i++) {
84 		if (rep->hide_unresolved && !(bi[i].from.sym && bi[i].to.sym))
85 			continue;
86 		/*
87 		 * The report shows the percentage of total branches captured
88 		 * and not events sampled. Thus we use a pseudo period of 1.
89 		 */
90 		he = __hists__add_branch_entry(&evsel->hists, al, parent,
91 				&bi[i], 1);
92 		if (he) {
93 			struct annotation *notes;
94 			err = -ENOMEM;
95 			bx = he->branch_info;
96 			if (bx->from.sym && use_browser == 1 && sort__has_sym) {
97 				notes = symbol__annotation(bx->from.sym);
98 				if (!notes->src
99 				    && symbol__alloc_hist(bx->from.sym) < 0)
100 					goto out;
101 
102 				err = symbol__inc_addr_samples(bx->from.sym,
103 							       bx->from.map,
104 							       evsel->idx,
105 							       bx->from.al_addr);
106 				if (err)
107 					goto out;
108 			}
109 
110 			if (bx->to.sym && use_browser == 1 && sort__has_sym) {
111 				notes = symbol__annotation(bx->to.sym);
112 				if (!notes->src
113 				    && symbol__alloc_hist(bx->to.sym) < 0)
114 					goto out;
115 
116 				err = symbol__inc_addr_samples(bx->to.sym,
117 							       bx->to.map,
118 							       evsel->idx,
119 							       bx->to.al_addr);
120 				if (err)
121 					goto out;
122 			}
123 			evsel->hists.stats.total_period += 1;
124 			hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE);
125 			err = 0;
126 		} else
127 			return -ENOMEM;
128 	}
129 out:
130 	return err;
131 }
132 
133 static int perf_evsel__add_hist_entry(struct perf_evsel *evsel,
134 				      struct addr_location *al,
135 				      struct perf_sample *sample,
136 				      struct machine *machine)
137 {
138 	struct symbol *parent = NULL;
139 	int err = 0;
140 	struct hist_entry *he;
141 
142 	if ((sort__has_parent || symbol_conf.use_callchain) && sample->callchain) {
143 		err = machine__resolve_callchain(machine, evsel, al->thread,
144 						 sample, &parent);
145 		if (err)
146 			return err;
147 	}
148 
149 	he = __hists__add_entry(&evsel->hists, al, parent, sample->period);
150 	if (he == NULL)
151 		return -ENOMEM;
152 
153 	if (symbol_conf.use_callchain) {
154 		err = callchain_append(he->callchain,
155 				       &callchain_cursor,
156 				       sample->period);
157 		if (err)
158 			return err;
159 	}
160 	/*
161 	 * Only in the newt browser we are doing integrated annotation,
162 	 * so we don't allocated the extra space needed because the stdio
163 	 * code will not use it.
164 	 */
165 	if (he->ms.sym != NULL && use_browser == 1 && sort__has_sym) {
166 		struct annotation *notes = symbol__annotation(he->ms.sym);
167 
168 		assert(evsel != NULL);
169 
170 		err = -ENOMEM;
171 		if (notes->src == NULL && symbol__alloc_hist(he->ms.sym) < 0)
172 			goto out;
173 
174 		err = hist_entry__inc_addr_samples(he, evsel->idx, al->addr);
175 	}
176 
177 	evsel->hists.stats.total_period += sample->period;
178 	hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE);
179 out:
180 	return err;
181 }
182 
183 
184 static int process_sample_event(struct perf_tool *tool,
185 				union perf_event *event,
186 				struct perf_sample *sample,
187 				struct perf_evsel *evsel,
188 				struct machine *machine)
189 {
190 	struct perf_report *rep = container_of(tool, struct perf_report, tool);
191 	struct addr_location al;
192 
193 	if (perf_event__preprocess_sample(event, machine, &al, sample,
194 					  rep->annotate_init) < 0) {
195 		fprintf(stderr, "problem processing %d event, skipping it.\n",
196 			event->header.type);
197 		return -1;
198 	}
199 
200 	if (al.filtered || (rep->hide_unresolved && al.sym == NULL))
201 		return 0;
202 
203 	if (rep->cpu_list && !test_bit(sample->cpu, rep->cpu_bitmap))
204 		return 0;
205 
206 	if (sort__branch_mode == 1) {
207 		if (perf_report__add_branch_hist_entry(tool, &al, sample,
208 						       evsel, machine)) {
209 			pr_debug("problem adding lbr entry, skipping event\n");
210 			return -1;
211 		}
212 	} else {
213 		if (al.map != NULL)
214 			al.map->dso->hit = 1;
215 
216 		if (perf_evsel__add_hist_entry(evsel, &al, sample, machine)) {
217 			pr_debug("problem incrementing symbol period, skipping event\n");
218 			return -1;
219 		}
220 	}
221 	return 0;
222 }
223 
224 static int process_read_event(struct perf_tool *tool,
225 			      union perf_event *event,
226 			      struct perf_sample *sample __maybe_unused,
227 			      struct perf_evsel *evsel,
228 			      struct machine *machine __maybe_unused)
229 {
230 	struct perf_report *rep = container_of(tool, struct perf_report, tool);
231 
232 	if (rep->show_threads) {
233 		const char *name = evsel ? perf_evsel__name(evsel) : "unknown";
234 		perf_read_values_add_value(&rep->show_threads_values,
235 					   event->read.pid, event->read.tid,
236 					   event->read.id,
237 					   name,
238 					   event->read.value);
239 	}
240 
241 	dump_printf(": %d %d %s %" PRIu64 "\n", event->read.pid, event->read.tid,
242 		    evsel ? perf_evsel__name(evsel) : "FAIL",
243 		    event->read.value);
244 
245 	return 0;
246 }
247 
248 /* For pipe mode, sample_type is not currently set */
249 static int perf_report__setup_sample_type(struct perf_report *rep)
250 {
251 	struct perf_session *self = rep->session;
252 	u64 sample_type = perf_evlist__sample_type(self->evlist);
253 
254 	if (!self->fd_pipe && !(sample_type & PERF_SAMPLE_CALLCHAIN)) {
255 		if (sort__has_parent) {
256 			ui__error("Selected --sort parent, but no "
257 				    "callchain data. Did you call "
258 				    "'perf record' without -g?\n");
259 			return -EINVAL;
260 		}
261 		if (symbol_conf.use_callchain) {
262 			ui__error("Selected -g but no callchain data. Did "
263 				    "you call 'perf record' without -g?\n");
264 			return -1;
265 		}
266 	} else if (!rep->dont_use_callchains &&
267 		   callchain_param.mode != CHAIN_NONE &&
268 		   !symbol_conf.use_callchain) {
269 			symbol_conf.use_callchain = true;
270 			if (callchain_register_param(&callchain_param) < 0) {
271 				ui__error("Can't register callchain params.\n");
272 				return -EINVAL;
273 			}
274 	}
275 
276 	if (sort__branch_mode == 1) {
277 		if (!self->fd_pipe &&
278 		    !(sample_type & PERF_SAMPLE_BRANCH_STACK)) {
279 			ui__error("Selected -b but no branch data. "
280 				  "Did you call perf record without -b?\n");
281 			return -1;
282 		}
283 	}
284 
285 	return 0;
286 }
287 
288 extern volatile int session_done;
289 
290 static void sig_handler(int sig __maybe_unused)
291 {
292 	session_done = 1;
293 }
294 
295 static size_t hists__fprintf_nr_sample_events(struct hists *self,
296 					      const char *evname, FILE *fp)
297 {
298 	size_t ret;
299 	char unit;
300 	unsigned long nr_samples = self->stats.nr_events[PERF_RECORD_SAMPLE];
301 	u64 nr_events = self->stats.total_period;
302 
303 	nr_samples = convert_unit(nr_samples, &unit);
304 	ret = fprintf(fp, "# Samples: %lu%c", nr_samples, unit);
305 	if (evname != NULL)
306 		ret += fprintf(fp, " of event '%s'", evname);
307 
308 	ret += fprintf(fp, "\n# Event count (approx.): %" PRIu64, nr_events);
309 	return ret + fprintf(fp, "\n#\n");
310 }
311 
312 static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist,
313 					 struct perf_report *rep,
314 					 const char *help)
315 {
316 	struct perf_evsel *pos;
317 
318 	list_for_each_entry(pos, &evlist->entries, node) {
319 		struct hists *hists = &pos->hists;
320 		const char *evname = perf_evsel__name(pos);
321 
322 		if (symbol_conf.event_group &&
323 		    !perf_evsel__is_group_leader(pos))
324 			continue;
325 
326 		hists__fprintf_nr_sample_events(hists, evname, stdout);
327 		hists__fprintf(hists, true, 0, 0, stdout);
328 		fprintf(stdout, "\n\n");
329 	}
330 
331 	if (sort_order == default_sort_order &&
332 	    parent_pattern == default_parent_pattern) {
333 		fprintf(stdout, "#\n# (%s)\n#\n", help);
334 
335 		if (rep->show_threads) {
336 			bool style = !strcmp(rep->pretty_printing_style, "raw");
337 			perf_read_values_display(stdout, &rep->show_threads_values,
338 						 style);
339 			perf_read_values_destroy(&rep->show_threads_values);
340 		}
341 	}
342 
343 	return 0;
344 }
345 
346 static int __cmd_report(struct perf_report *rep)
347 {
348 	int ret = -EINVAL;
349 	u64 nr_samples;
350 	struct perf_session *session = rep->session;
351 	struct perf_evsel *pos;
352 	struct map *kernel_map;
353 	struct kmap *kernel_kmap;
354 	const char *help = "For a higher level overview, try: perf report --sort comm,dso";
355 
356 	signal(SIGINT, sig_handler);
357 
358 	if (rep->cpu_list) {
359 		ret = perf_session__cpu_bitmap(session, rep->cpu_list,
360 					       rep->cpu_bitmap);
361 		if (ret)
362 			goto out_delete;
363 	}
364 
365 	if (use_browser <= 0)
366 		perf_session__fprintf_info(session, stdout, rep->show_full_info);
367 
368 	if (rep->show_threads)
369 		perf_read_values_init(&rep->show_threads_values);
370 
371 	ret = perf_report__setup_sample_type(rep);
372 	if (ret)
373 		goto out_delete;
374 
375 	ret = perf_session__process_events(session, &rep->tool);
376 	if (ret)
377 		goto out_delete;
378 
379 	kernel_map = session->machines.host.vmlinux_maps[MAP__FUNCTION];
380 	kernel_kmap = map__kmap(kernel_map);
381 	if (kernel_map == NULL ||
382 	    (kernel_map->dso->hit &&
383 	     (kernel_kmap->ref_reloc_sym == NULL ||
384 	      kernel_kmap->ref_reloc_sym->addr == 0))) {
385 		const char *desc =
386 		    "As no suitable kallsyms nor vmlinux was found, kernel samples\n"
387 		    "can't be resolved.";
388 
389 		if (kernel_map) {
390 			const struct dso *kdso = kernel_map->dso;
391 			if (!RB_EMPTY_ROOT(&kdso->symbols[MAP__FUNCTION])) {
392 				desc = "If some relocation was applied (e.g. "
393 				       "kexec) symbols may be misresolved.";
394 			}
395 		}
396 
397 		ui__warning(
398 "Kernel address maps (/proc/{kallsyms,modules}) were restricted.\n\n"
399 "Check /proc/sys/kernel/kptr_restrict before running 'perf record'.\n\n%s\n\n"
400 "Samples in kernel modules can't be resolved as well.\n\n",
401 		desc);
402 	}
403 
404 	if (verbose > 3)
405 		perf_session__fprintf(session, stdout);
406 
407 	if (verbose > 2)
408 		perf_session__fprintf_dsos(session, stdout);
409 
410 	if (dump_trace) {
411 		perf_session__fprintf_nr_events(session, stdout);
412 		goto out_delete;
413 	}
414 
415 	nr_samples = 0;
416 	list_for_each_entry(pos, &session->evlist->entries, node) {
417 		struct hists *hists = &pos->hists;
418 
419 		if (pos->idx == 0)
420 			hists->symbol_filter_str = rep->symbol_filter_str;
421 
422 		hists__collapse_resort(hists);
423 		nr_samples += hists->stats.nr_events[PERF_RECORD_SAMPLE];
424 
425 		/* Non-group events are considered as leader */
426 		if (symbol_conf.event_group &&
427 		    !perf_evsel__is_group_leader(pos)) {
428 			struct hists *leader_hists = &pos->leader->hists;
429 
430 			hists__match(leader_hists, hists);
431 			hists__link(leader_hists, hists);
432 		}
433 	}
434 
435 	if (nr_samples == 0) {
436 		ui__error("The %s file has no samples!\n", session->filename);
437 		goto out_delete;
438 	}
439 
440 	list_for_each_entry(pos, &session->evlist->entries, node)
441 		hists__output_resort(&pos->hists);
442 
443 	if (use_browser > 0) {
444 		if (use_browser == 1) {
445 			perf_evlist__tui_browse_hists(session->evlist, help,
446 						      NULL,
447 						      &session->header.env);
448 		} else if (use_browser == 2) {
449 			perf_evlist__gtk_browse_hists(session->evlist, help,
450 						      NULL);
451 		}
452 	} else
453 		perf_evlist__tty_browse_hists(session->evlist, rep, help);
454 
455 out_delete:
456 	/*
457 	 * Speed up the exit process, for large files this can
458 	 * take quite a while.
459 	 *
460 	 * XXX Enable this when using valgrind or if we ever
461 	 * librarize this command.
462 	 *
463 	 * Also experiment with obstacks to see how much speed
464 	 * up we'll get here.
465 	 *
466  	 * perf_session__delete(session);
467  	 */
468 	return ret;
469 }
470 
471 static int
472 parse_callchain_opt(const struct option *opt, const char *arg, int unset)
473 {
474 	struct perf_report *rep = (struct perf_report *)opt->value;
475 	char *tok, *tok2;
476 	char *endptr;
477 
478 	/*
479 	 * --no-call-graph
480 	 */
481 	if (unset) {
482 		rep->dont_use_callchains = true;
483 		return 0;
484 	}
485 
486 	symbol_conf.use_callchain = true;
487 
488 	if (!arg)
489 		return 0;
490 
491 	tok = strtok((char *)arg, ",");
492 	if (!tok)
493 		return -1;
494 
495 	/* get the output mode */
496 	if (!strncmp(tok, "graph", strlen(arg)))
497 		callchain_param.mode = CHAIN_GRAPH_ABS;
498 
499 	else if (!strncmp(tok, "flat", strlen(arg)))
500 		callchain_param.mode = CHAIN_FLAT;
501 
502 	else if (!strncmp(tok, "fractal", strlen(arg)))
503 		callchain_param.mode = CHAIN_GRAPH_REL;
504 
505 	else if (!strncmp(tok, "none", strlen(arg))) {
506 		callchain_param.mode = CHAIN_NONE;
507 		symbol_conf.use_callchain = false;
508 
509 		return 0;
510 	}
511 
512 	else
513 		return -1;
514 
515 	/* get the min percentage */
516 	tok = strtok(NULL, ",");
517 	if (!tok)
518 		goto setup;
519 
520 	callchain_param.min_percent = strtod(tok, &endptr);
521 	if (tok == endptr)
522 		return -1;
523 
524 	/* get the print limit */
525 	tok2 = strtok(NULL, ",");
526 	if (!tok2)
527 		goto setup;
528 
529 	if (tok2[0] != 'c') {
530 		callchain_param.print_limit = strtoul(tok2, &endptr, 0);
531 		tok2 = strtok(NULL, ",");
532 		if (!tok2)
533 			goto setup;
534 	}
535 
536 	/* get the call chain order */
537 	if (!strcmp(tok2, "caller"))
538 		callchain_param.order = ORDER_CALLER;
539 	else if (!strcmp(tok2, "callee"))
540 		callchain_param.order = ORDER_CALLEE;
541 	else
542 		return -1;
543 setup:
544 	if (callchain_register_param(&callchain_param) < 0) {
545 		fprintf(stderr, "Can't register callchain params\n");
546 		return -1;
547 	}
548 	return 0;
549 }
550 
551 static int
552 parse_branch_mode(const struct option *opt __maybe_unused,
553 		  const char *str __maybe_unused, int unset)
554 {
555 	sort__branch_mode = !unset;
556 	return 0;
557 }
558 
559 int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
560 {
561 	struct perf_session *session;
562 	struct stat st;
563 	bool has_br_stack = false;
564 	int ret = -1;
565 	char callchain_default_opt[] = "fractal,0.5,callee";
566 	const char * const report_usage[] = {
567 		"perf report [<options>]",
568 		NULL
569 	};
570 	struct perf_report report = {
571 		.tool = {
572 			.sample		 = process_sample_event,
573 			.mmap		 = perf_event__process_mmap,
574 			.comm		 = perf_event__process_comm,
575 			.exit		 = perf_event__process_exit,
576 			.fork		 = perf_event__process_fork,
577 			.lost		 = perf_event__process_lost,
578 			.read		 = process_read_event,
579 			.attr		 = perf_event__process_attr,
580 			.event_type	 = perf_event__process_event_type,
581 			.tracing_data	 = perf_event__process_tracing_data,
582 			.build_id	 = perf_event__process_build_id,
583 			.ordered_samples = true,
584 			.ordering_requires_timestamps = true,
585 		},
586 		.pretty_printing_style	 = "normal",
587 	};
588 	const struct option options[] = {
589 	OPT_STRING('i', "input", &input_name, "file",
590 		    "input file name"),
591 	OPT_INCR('v', "verbose", &verbose,
592 		    "be more verbose (show symbol address, etc)"),
593 	OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
594 		    "dump raw trace in ASCII"),
595 	OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
596 		   "file", "vmlinux pathname"),
597 	OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
598 		   "file", "kallsyms pathname"),
599 	OPT_BOOLEAN('f', "force", &report.force, "don't complain, do it"),
600 	OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
601 		    "load module symbols - WARNING: use only with -k and LIVE kernel"),
602 	OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
603 		    "Show a column with the number of samples"),
604 	OPT_BOOLEAN('T', "threads", &report.show_threads,
605 		    "Show per-thread event counters"),
606 	OPT_STRING(0, "pretty", &report.pretty_printing_style, "key",
607 		   "pretty printing style key: normal raw"),
608 	OPT_BOOLEAN(0, "tui", &report.use_tui, "Use the TUI interface"),
609 	OPT_BOOLEAN(0, "gtk", &report.use_gtk, "Use the GTK2 interface"),
610 	OPT_BOOLEAN(0, "stdio", &report.use_stdio,
611 		    "Use the stdio interface"),
612 	OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
613 		   "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline,"
614 		   " dso_to, dso_from, symbol_to, symbol_from, mispredict"),
615 	OPT_BOOLEAN(0, "showcpuutilization", &symbol_conf.show_cpu_utilization,
616 		    "Show sample percentage for different cpu modes"),
617 	OPT_STRING('p', "parent", &parent_pattern, "regex",
618 		   "regex filter to identify parent, see: '--sort parent'"),
619 	OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other,
620 		    "Only display entries with parent-match"),
621 	OPT_CALLBACK_DEFAULT('g', "call-graph", &report, "output_type,min_percent[,print_limit],call_order",
622 		     "Display callchains using output_type (graph, flat, fractal, or none) , min percent threshold, optional print limit and callchain order. "
623 		     "Default: fractal,0.5,callee", &parse_callchain_opt, callchain_default_opt),
624 	OPT_BOOLEAN('G', "inverted", &report.inverted_callchain,
625 		    "alias for inverted call graph"),
626 	OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
627 		   "only consider symbols in these dsos"),
628 	OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
629 		   "only consider symbols in these comms"),
630 	OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
631 		   "only consider these symbols"),
632 	OPT_STRING(0, "symbol-filter", &report.symbol_filter_str, "filter",
633 		   "only show symbols that (partially) match with this filter"),
634 	OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str,
635 		   "width[,width...]",
636 		   "don't try to adjust column width, use these fixed values"),
637 	OPT_STRING('t', "field-separator", &symbol_conf.field_sep, "separator",
638 		   "separator for columns, no spaces will be added between "
639 		   "columns '.' is reserved."),
640 	OPT_BOOLEAN('U', "hide-unresolved", &report.hide_unresolved,
641 		    "Only display entries resolved to a symbol"),
642 	OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
643 		    "Look for files with symbols relative to this directory"),
644 	OPT_STRING('C', "cpu", &report.cpu_list, "cpu",
645 		   "list of cpus to profile"),
646 	OPT_BOOLEAN('I', "show-info", &report.show_full_info,
647 		    "Display extended information about perf.data file"),
648 	OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src,
649 		    "Interleave source code with assembly code (default)"),
650 	OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw,
651 		    "Display raw encoding of assembly instructions (default)"),
652 	OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style",
653 		   "Specify disassembler style (e.g. -M intel for intel syntax)"),
654 	OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,
655 		    "Show a column with the sum of periods"),
656 	OPT_CALLBACK_NOOPT('b', "branch-stack", &sort__branch_mode, "",
657 		    "use branch records for histogram filling", parse_branch_mode),
658 	OPT_STRING(0, "objdump", &objdump_path, "path",
659 		   "objdump binary to use for disassembly and annotations"),
660 	OPT_END()
661 	};
662 
663 	argc = parse_options(argc, argv, options, report_usage, 0);
664 
665 	if (report.use_stdio)
666 		use_browser = 0;
667 	else if (report.use_tui)
668 		use_browser = 1;
669 	else if (report.use_gtk)
670 		use_browser = 2;
671 
672 	if (report.inverted_callchain)
673 		callchain_param.order = ORDER_CALLER;
674 
675 	if (!input_name || !strlen(input_name)) {
676 		if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
677 			input_name = "-";
678 		else
679 			input_name = "perf.data";
680 	}
681 	session = perf_session__new(input_name, O_RDONLY,
682 				    report.force, false, &report.tool);
683 	if (session == NULL)
684 		return -ENOMEM;
685 
686 	report.session = session;
687 
688 	has_br_stack = perf_header__has_feat(&session->header,
689 					     HEADER_BRANCH_STACK);
690 
691 	if (sort__branch_mode == -1 && has_br_stack)
692 		sort__branch_mode = 1;
693 
694 	/* sort__branch_mode could be 0 if --no-branch-stack */
695 	if (sort__branch_mode == 1) {
696 		/*
697 		 * if no sort_order is provided, then specify
698 		 * branch-mode specific order
699 		 */
700 		if (sort_order == default_sort_order)
701 			sort_order = "comm,dso_from,symbol_from,"
702 				     "dso_to,symbol_to";
703 
704 	}
705 
706 	if (strcmp(input_name, "-") != 0)
707 		setup_browser(true);
708 	else {
709 		use_browser = 0;
710 		perf_hpp__column_enable(PERF_HPP__OVERHEAD);
711 		perf_hpp__init();
712 	}
713 
714 	setup_sorting(report_usage, options);
715 
716 	/*
717 	 * Only in the newt browser we are doing integrated annotation,
718 	 * so don't allocate extra space that won't be used in the stdio
719 	 * implementation.
720 	 */
721 	if (use_browser == 1 && sort__has_sym) {
722 		symbol_conf.priv_size = sizeof(struct annotation);
723 		report.annotate_init  = symbol__annotate_init;
724 		/*
725  		 * For searching by name on the "Browse map details".
726  		 * providing it only in verbose mode not to bloat too
727  		 * much struct symbol.
728  		 */
729 		if (verbose) {
730 			/*
731 			 * XXX: Need to provide a less kludgy way to ask for
732 			 * more space per symbol, the u32 is for the index on
733 			 * the ui browser.
734 			 * See symbol__browser_index.
735 			 */
736 			symbol_conf.priv_size += sizeof(u32);
737 			symbol_conf.sort_by_name = true;
738 		}
739 	}
740 
741 	if (symbol__init() < 0)
742 		goto error;
743 
744 	if (parent_pattern != default_parent_pattern) {
745 		if (sort_dimension__add("parent") < 0)
746 			goto error;
747 
748 		/*
749 		 * Only show the parent fields if we explicitly
750 		 * sort that way. If we only use parent machinery
751 		 * for filtering, we don't want it.
752 		 */
753 		if (!strstr(sort_order, "parent"))
754 			sort_parent.elide = 1;
755 	} else
756 		symbol_conf.exclude_other = false;
757 
758 	if (argc) {
759 		/*
760 		 * Special case: if there's an argument left then assume that
761 		 * it's a symbol filter:
762 		 */
763 		if (argc > 1)
764 			usage_with_options(report_usage, options);
765 
766 		report.symbol_filter_str = argv[0];
767 	}
768 
769 	sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", stdout);
770 
771 	if (sort__branch_mode == 1) {
772 		sort_entry__setup_elide(&sort_dso_from, symbol_conf.dso_from_list, "dso_from", stdout);
773 		sort_entry__setup_elide(&sort_dso_to, symbol_conf.dso_to_list, "dso_to", stdout);
774 		sort_entry__setup_elide(&sort_sym_from, symbol_conf.sym_from_list, "sym_from", stdout);
775 		sort_entry__setup_elide(&sort_sym_to, symbol_conf.sym_to_list, "sym_to", stdout);
776 	} else {
777 		sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso", stdout);
778 		sort_entry__setup_elide(&sort_sym, symbol_conf.sym_list, "symbol", stdout);
779 	}
780 
781 	ret = __cmd_report(&report);
782 error:
783 	perf_session__delete(session);
784 	return ret;
785 }
786