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