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[karo-tx-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
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
37 #include <linux/bitmap.h>
38
39 struct perf_report {
40         struct perf_tool        tool;
41         struct perf_session     *session;
42         char const              *input_name;
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->callchain, &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 > 0) {
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 > 0) {
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->callchain, &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                                        &evsel->hists.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 (al->sym != NULL && use_browser > 0) {
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 __used,
227                               struct perf_evsel *evsel,
228                               struct machine *machine __used)
229 {
230         struct perf_report *rep = container_of(tool, struct perf_report, tool);
231
232         if (rep->show_threads) {
233                 const char *name = evsel ? event_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 ? event_name(evsel) : "FAIL",
243                     event->read.value);
244
245         return 0;
246 }
247
248 static int perf_report__setup_sample_type(struct perf_report *rep)
249 {
250         struct perf_session *self = rep->session;
251
252         if (!(self->sample_type & PERF_SAMPLE_CALLCHAIN)) {
253                 if (sort__has_parent) {
254                         ui__error("Selected --sort parent, but no "
255                                     "callchain data. Did you call "
256                                     "'perf record' without -g?\n");
257                         return -EINVAL;
258                 }
259                 if (symbol_conf.use_callchain) {
260                         ui__error("Selected -g but no callchain data. Did "
261                                     "you call 'perf record' without -g?\n");
262                         return -1;
263                 }
264         } else if (!rep->dont_use_callchains &&
265                    callchain_param.mode != CHAIN_NONE &&
266                    !symbol_conf.use_callchain) {
267                         symbol_conf.use_callchain = true;
268                         if (callchain_register_param(&callchain_param) < 0) {
269                                 ui__error("Can't register callchain params.\n");
270                                 return -EINVAL;
271                         }
272         }
273
274         if (sort__branch_mode == 1) {
275                 if (!(self->sample_type & PERF_SAMPLE_BRANCH_STACK)) {
276                         ui__error("Selected -b but no branch data. "
277                                   "Did you call perf record without -b?\n");
278                         return -1;
279                 }
280         }
281
282         return 0;
283 }
284
285 extern volatile int session_done;
286
287 static void sig_handler(int sig __used)
288 {
289         session_done = 1;
290 }
291
292 static size_t hists__fprintf_nr_sample_events(struct hists *self,
293                                               const char *evname, FILE *fp)
294 {
295         size_t ret;
296         char unit;
297         unsigned long nr_samples = self->stats.nr_events[PERF_RECORD_SAMPLE];
298         u64 nr_events = self->stats.total_period;
299
300         nr_samples = convert_unit(nr_samples, &unit);
301         ret = fprintf(fp, "# Samples: %lu%c", nr_samples, unit);
302         if (evname != NULL)
303                 ret += fprintf(fp, " of event '%s'", evname);
304
305         ret += fprintf(fp, "\n# Event count (approx.): %" PRIu64, nr_events);
306         return ret + fprintf(fp, "\n#\n");
307 }
308
309 static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist,
310                                          struct perf_report *rep,
311                                          const char *help)
312 {
313         struct perf_evsel *pos;
314
315         list_for_each_entry(pos, &evlist->entries, node) {
316                 struct hists *hists = &pos->hists;
317                 const char *evname = event_name(pos);
318
319                 hists__fprintf_nr_sample_events(hists, evname, stdout);
320                 hists__fprintf(hists, NULL, false, true, 0, 0, stdout);
321                 fprintf(stdout, "\n\n");
322         }
323
324         if (sort_order == default_sort_order &&
325             parent_pattern == default_parent_pattern) {
326                 fprintf(stdout, "#\n# (%s)\n#\n", help);
327
328                 if (rep->show_threads) {
329                         bool style = !strcmp(rep->pretty_printing_style, "raw");
330                         perf_read_values_display(stdout, &rep->show_threads_values,
331                                                  style);
332                         perf_read_values_destroy(&rep->show_threads_values);
333                 }
334         }
335
336         return 0;
337 }
338
339 static int __cmd_report(struct perf_report *rep)
340 {
341         int ret = -EINVAL;
342         u64 nr_samples;
343         struct perf_session *session = rep->session;
344         struct perf_evsel *pos;
345         struct map *kernel_map;
346         struct kmap *kernel_kmap;
347         const char *help = "For a higher level overview, try: perf report --sort comm,dso";
348
349         signal(SIGINT, sig_handler);
350
351         if (rep->cpu_list) {
352                 ret = perf_session__cpu_bitmap(session, rep->cpu_list,
353                                                rep->cpu_bitmap);
354                 if (ret)
355                         goto out_delete;
356         }
357
358         if (use_browser <= 0)
359                 perf_session__fprintf_info(session, stdout, rep->show_full_info);
360
361         if (rep->show_threads)
362                 perf_read_values_init(&rep->show_threads_values);
363
364         ret = perf_report__setup_sample_type(rep);
365         if (ret)
366                 goto out_delete;
367
368         ret = perf_session__process_events(session, &rep->tool);
369         if (ret)
370                 goto out_delete;
371
372         kernel_map = session->host_machine.vmlinux_maps[MAP__FUNCTION];
373         kernel_kmap = map__kmap(kernel_map);
374         if (kernel_map == NULL ||
375             (kernel_map->dso->hit &&
376              (kernel_kmap->ref_reloc_sym == NULL ||
377               kernel_kmap->ref_reloc_sym->addr == 0))) {
378                 const char *desc =
379                     "As no suitable kallsyms nor vmlinux was found, kernel samples\n"
380                     "can't be resolved.";
381
382                 if (kernel_map) {
383                         const struct dso *kdso = kernel_map->dso;
384                         if (!RB_EMPTY_ROOT(&kdso->symbols[MAP__FUNCTION])) {
385                                 desc = "If some relocation was applied (e.g. "
386                                        "kexec) symbols may be misresolved.";
387                         }
388                 }
389
390                 ui__warning(
391 "Kernel address maps (/proc/{kallsyms,modules}) were restricted.\n\n"
392 "Check /proc/sys/kernel/kptr_restrict before running 'perf record'.\n\n%s\n\n"
393 "Samples in kernel modules can't be resolved as well.\n\n",
394                 desc);
395         }
396
397         if (dump_trace) {
398                 perf_session__fprintf_nr_events(session, stdout);
399                 goto out_delete;
400         }
401
402         if (verbose > 3)
403                 perf_session__fprintf(session, stdout);
404
405         if (verbose > 2)
406                 perf_session__fprintf_dsos(session, stdout);
407
408         nr_samples = 0;
409         list_for_each_entry(pos, &session->evlist->entries, node) {
410                 struct hists *hists = &pos->hists;
411
412                 if (pos->idx == 0)
413                         hists->symbol_filter_str = rep->symbol_filter_str;
414
415                 hists__collapse_resort(hists);
416                 hists__output_resort(hists);
417                 nr_samples += hists->stats.nr_events[PERF_RECORD_SAMPLE];
418         }
419
420         if (nr_samples == 0) {
421                 ui__error("The %s file has no samples!\n", session->filename);
422                 goto out_delete;
423         }
424
425         if (use_browser > 0) {
426                 if (use_browser == 1) {
427                         perf_evlist__tui_browse_hists(session->evlist, help,
428                                                       NULL, NULL, 0);
429                 } else if (use_browser == 2) {
430                         perf_evlist__gtk_browse_hists(session->evlist, help,
431                                                       NULL, NULL, 0);
432                 }
433         } else
434                 perf_evlist__tty_browse_hists(session->evlist, rep, help);
435
436 out_delete:
437         /*
438          * Speed up the exit process, for large files this can
439          * take quite a while.
440          *
441          * XXX Enable this when using valgrind or if we ever
442          * librarize this command.
443          *
444          * Also experiment with obstacks to see how much speed
445          * up we'll get here.
446          *
447          * perf_session__delete(session);
448          */
449         return ret;
450 }
451
452 static int
453 parse_callchain_opt(const struct option *opt, const char *arg, int unset)
454 {
455         struct perf_report *rep = (struct perf_report *)opt->value;
456         char *tok, *tok2;
457         char *endptr;
458
459         /*
460          * --no-call-graph
461          */
462         if (unset) {
463                 rep->dont_use_callchains = true;
464                 return 0;
465         }
466
467         symbol_conf.use_callchain = true;
468
469         if (!arg)
470                 return 0;
471
472         tok = strtok((char *)arg, ",");
473         if (!tok)
474                 return -1;
475
476         /* get the output mode */
477         if (!strncmp(tok, "graph", strlen(arg)))
478                 callchain_param.mode = CHAIN_GRAPH_ABS;
479
480         else if (!strncmp(tok, "flat", strlen(arg)))
481                 callchain_param.mode = CHAIN_FLAT;
482
483         else if (!strncmp(tok, "fractal", strlen(arg)))
484                 callchain_param.mode = CHAIN_GRAPH_REL;
485
486         else if (!strncmp(tok, "none", strlen(arg))) {
487                 callchain_param.mode = CHAIN_NONE;
488                 symbol_conf.use_callchain = false;
489
490                 return 0;
491         }
492
493         else
494                 return -1;
495
496         /* get the min percentage */
497         tok = strtok(NULL, ",");
498         if (!tok)
499                 goto setup;
500
501         callchain_param.min_percent = strtod(tok, &endptr);
502         if (tok == endptr)
503                 return -1;
504
505         /* get the print limit */
506         tok2 = strtok(NULL, ",");
507         if (!tok2)
508                 goto setup;
509
510         if (tok2[0] != 'c') {
511                 callchain_param.print_limit = strtoul(tok2, &endptr, 0);
512                 tok2 = strtok(NULL, ",");
513                 if (!tok2)
514                         goto setup;
515         }
516
517         /* get the call chain order */
518         if (!strcmp(tok2, "caller"))
519                 callchain_param.order = ORDER_CALLER;
520         else if (!strcmp(tok2, "callee"))
521                 callchain_param.order = ORDER_CALLEE;
522         else
523                 return -1;
524 setup:
525         if (callchain_register_param(&callchain_param) < 0) {
526                 fprintf(stderr, "Can't register callchain params\n");
527                 return -1;
528         }
529         return 0;
530 }
531
532 static int
533 parse_branch_mode(const struct option *opt __used, const char *str __used, int unset)
534 {
535         sort__branch_mode = !unset;
536         return 0;
537 }
538
539 int cmd_report(int argc, const char **argv, const char *prefix __used)
540 {
541         struct perf_session *session;
542         struct stat st;
543         bool has_br_stack = false;
544         int ret = -1;
545         char callchain_default_opt[] = "fractal,0.5,callee";
546         const char * const report_usage[] = {
547                 "perf report [<options>]",
548                 NULL
549         };
550         struct perf_report report = {
551                 .tool = {
552                         .sample          = process_sample_event,
553                         .mmap            = perf_event__process_mmap,
554                         .comm            = perf_event__process_comm,
555                         .exit            = perf_event__process_task,
556                         .fork            = perf_event__process_task,
557                         .lost            = perf_event__process_lost,
558                         .read            = process_read_event,
559                         .attr            = perf_event__process_attr,
560                         .event_type      = perf_event__process_event_type,
561                         .tracing_data    = perf_event__process_tracing_data,
562                         .build_id        = perf_event__process_build_id,
563                         .ordered_samples = true,
564                         .ordering_requires_timestamps = true,
565                 },
566                 .pretty_printing_style   = "normal",
567         };
568         const struct option options[] = {
569         OPT_STRING('i', "input", &report.input_name, "file",
570                     "input file name"),
571         OPT_INCR('v', "verbose", &verbose,
572                     "be more verbose (show symbol address, etc)"),
573         OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
574                     "dump raw trace in ASCII"),
575         OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
576                    "file", "vmlinux pathname"),
577         OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
578                    "file", "kallsyms pathname"),
579         OPT_BOOLEAN('f', "force", &report.force, "don't complain, do it"),
580         OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
581                     "load module symbols - WARNING: use only with -k and LIVE kernel"),
582         OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
583                     "Show a column with the number of samples"),
584         OPT_BOOLEAN('T', "threads", &report.show_threads,
585                     "Show per-thread event counters"),
586         OPT_STRING(0, "pretty", &report.pretty_printing_style, "key",
587                    "pretty printing style key: normal raw"),
588         OPT_BOOLEAN(0, "tui", &report.use_tui, "Use the TUI interface"),
589         OPT_BOOLEAN(0, "gtk", &report.use_gtk, "Use the GTK2 interface"),
590         OPT_BOOLEAN(0, "stdio", &report.use_stdio,
591                     "Use the stdio interface"),
592         OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
593                    "sort by key(s): pid, comm, dso, symbol, parent, dso_to,"
594                    " dso_from, symbol_to, symbol_from, mispredict"),
595         OPT_BOOLEAN(0, "showcpuutilization", &symbol_conf.show_cpu_utilization,
596                     "Show sample percentage for different cpu modes"),
597         OPT_STRING('p', "parent", &parent_pattern, "regex",
598                    "regex filter to identify parent, see: '--sort parent'"),
599         OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other,
600                     "Only display entries with parent-match"),
601         OPT_CALLBACK_DEFAULT('g', "call-graph", &report, "output_type,min_percent[,print_limit],call_order",
602                      "Display callchains using output_type (graph, flat, fractal, or none) , min percent threshold, optional print limit and callchain order. "
603                      "Default: fractal,0.5,callee", &parse_callchain_opt, callchain_default_opt),
604         OPT_BOOLEAN('G', "inverted", &report.inverted_callchain,
605                     "alias for inverted call graph"),
606         OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
607                    "only consider symbols in these dsos"),
608         OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
609                    "only consider symbols in these comms"),
610         OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
611                    "only consider these symbols"),
612         OPT_STRING(0, "symbol-filter", &report.symbol_filter_str, "filter",
613                    "only show symbols that (partially) match with this filter"),
614         OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str,
615                    "width[,width...]",
616                    "don't try to adjust column width, use these fixed values"),
617         OPT_STRING('t', "field-separator", &symbol_conf.field_sep, "separator",
618                    "separator for columns, no spaces will be added between "
619                    "columns '.' is reserved."),
620         OPT_BOOLEAN('U', "hide-unresolved", &report.hide_unresolved,
621                     "Only display entries resolved to a symbol"),
622         OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
623                     "Look for files with symbols relative to this directory"),
624         OPT_STRING('C', "cpu", &report.cpu_list, "cpu",
625                    "list of cpus to profile"),
626         OPT_BOOLEAN('I', "show-info", &report.show_full_info,
627                     "Display extended information about perf.data file"),
628         OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src,
629                     "Interleave source code with assembly code (default)"),
630         OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw,
631                     "Display raw encoding of assembly instructions (default)"),
632         OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style",
633                    "Specify disassembler style (e.g. -M intel for intel syntax)"),
634         OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,
635                     "Show a column with the sum of periods"),
636         OPT_CALLBACK_NOOPT('b', "branch-stack", &sort__branch_mode, "",
637                     "use branch records for histogram filling", parse_branch_mode),
638         OPT_END()
639         };
640
641         argc = parse_options(argc, argv, options, report_usage, 0);
642
643         if (report.use_stdio)
644                 use_browser = 0;
645         else if (report.use_tui)
646                 use_browser = 1;
647         else if (report.use_gtk)
648                 use_browser = 2;
649
650         if (report.inverted_callchain)
651                 callchain_param.order = ORDER_CALLER;
652
653         if (!report.input_name || !strlen(report.input_name)) {
654                 if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
655                         report.input_name = "-";
656                 else
657                         report.input_name = "perf.data";
658         }
659         session = perf_session__new(report.input_name, O_RDONLY,
660                                     report.force, false, &report.tool);
661         if (session == NULL)
662                 return -ENOMEM;
663
664         report.session = session;
665
666         has_br_stack = perf_header__has_feat(&session->header,
667                                              HEADER_BRANCH_STACK);
668
669         if (sort__branch_mode == -1 && has_br_stack)
670                 sort__branch_mode = 1;
671
672         /* sort__branch_mode could be 0 if --no-branch-stack */
673         if (sort__branch_mode == 1) {
674                 /*
675                  * if no sort_order is provided, then specify
676                  * branch-mode specific order
677                  */
678                 if (sort_order == default_sort_order)
679                         sort_order = "comm,dso_from,symbol_from,"
680                                      "dso_to,symbol_to";
681
682         }
683
684         if (strcmp(report.input_name, "-") != 0)
685                 setup_browser(true);
686         else
687                 use_browser = 0;
688
689         /*
690          * Only in the newt browser we are doing integrated annotation,
691          * so don't allocate extra space that won't be used in the stdio
692          * implementation.
693          */
694         if (use_browser > 0) {
695                 symbol_conf.priv_size = sizeof(struct annotation);
696                 report.annotate_init  = symbol__annotate_init;
697                 /*
698                  * For searching by name on the "Browse map details".
699                  * providing it only in verbose mode not to bloat too
700                  * much struct symbol.
701                  */
702                 if (verbose) {
703                         /*
704                          * XXX: Need to provide a less kludgy way to ask for
705                          * more space per symbol, the u32 is for the index on
706                          * the ui browser.
707                          * See symbol__browser_index.
708                          */
709                         symbol_conf.priv_size += sizeof(u32);
710                         symbol_conf.sort_by_name = true;
711                 }
712         }
713
714         if (symbol__init() < 0)
715                 goto error;
716
717         setup_sorting(report_usage, options);
718
719         if (parent_pattern != default_parent_pattern) {
720                 if (sort_dimension__add("parent") < 0)
721                         goto error;
722
723                 /*
724                  * Only show the parent fields if we explicitly
725                  * sort that way. If we only use parent machinery
726                  * for filtering, we don't want it.
727                  */
728                 if (!strstr(sort_order, "parent"))
729                         sort_parent.elide = 1;
730         } else
731                 symbol_conf.exclude_other = false;
732
733         if (argc) {
734                 /*
735                  * Special case: if there's an argument left then assume that
736                  * it's a symbol filter:
737                  */
738                 if (argc > 1)
739                         usage_with_options(report_usage, options);
740
741                 report.symbol_filter_str = argv[0];
742         }
743
744         sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", stdout);
745
746         if (sort__branch_mode == 1) {
747                 sort_entry__setup_elide(&sort_dso_from, symbol_conf.dso_from_list, "dso_from", stdout);
748                 sort_entry__setup_elide(&sort_dso_to, symbol_conf.dso_to_list, "dso_to", stdout);
749                 sort_entry__setup_elide(&sort_sym_from, symbol_conf.sym_from_list, "sym_from", stdout);
750                 sort_entry__setup_elide(&sort_sym_to, symbol_conf.sym_to_list, "sym_to", stdout);
751         } else {
752                 sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso", stdout);
753                 sort_entry__setup_elide(&sort_sym, symbol_conf.sym_list, "symbol", stdout);
754         }
755
756         ret = __cmd_report(&report);
757 error:
758         perf_session__delete(session);
759         return ret;
760 }