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