1#include <stdio.h>
2
3#include "../../util/util.h"
4#include "../../util/hist.h"
5#include "../../util/sort.h"
6#include "../../util/evsel.h"
7
8
9static size_t callchain__fprintf_left_margin(FILE *fp, int left_margin)
10{
11 int i;
12 int ret = fprintf(fp, " ");
13
14 for (i = 0; i < left_margin; i++)
15 ret += fprintf(fp, " ");
16
17 return ret;
18}
19
20static size_t ipchain__fprintf_graph_line(FILE *fp, int depth, int depth_mask,
21 int left_margin)
22{
23 int i;
24 size_t ret = callchain__fprintf_left_margin(fp, left_margin);
25
26 for (i = 0; i < depth; i++)
27 if (depth_mask & (1 << i))
28 ret += fprintf(fp, "| ");
29 else
30 ret += fprintf(fp, " ");
31
32 ret += fprintf(fp, "\n");
33
34 return ret;
35}
36
37static size_t ipchain__fprintf_graph(FILE *fp, struct callchain_node *node,
38 struct callchain_list *chain,
39 int depth, int depth_mask, int period,
40 u64 total_samples, int left_margin)
41{
42 int i;
43 size_t ret = 0;
44 char bf[1024];
45
46 ret += callchain__fprintf_left_margin(fp, left_margin);
47 for (i = 0; i < depth; i++) {
48 if (depth_mask & (1 << i))
49 ret += fprintf(fp, "|");
50 else
51 ret += fprintf(fp, " ");
52 if (!period && i == depth - 1) {
53 ret += fprintf(fp, "--");
54 ret += callchain_node__fprintf_value(node, fp, total_samples);
55 ret += fprintf(fp, "--");
56 } else
57 ret += fprintf(fp, "%s", " ");
58 }
59 fputs(callchain_list__sym_name(chain, bf, sizeof(bf), false), fp);
60 fputc('\n', fp);
61 return ret;
62}
63
64static struct symbol *rem_sq_bracket;
65static struct callchain_list rem_hits;
66
67static void init_rem_hits(void)
68{
69 rem_sq_bracket = malloc(sizeof(*rem_sq_bracket) + 6);
70 if (!rem_sq_bracket) {
71 fprintf(stderr, "Not enough memory to display remaining hits\n");
72 return;
73 }
74
75 strcpy(rem_sq_bracket->name, "[...]");
76 rem_hits.ms.sym = rem_sq_bracket;
77}
78
79static size_t __callchain__fprintf_graph(FILE *fp, struct rb_root *root,
80 u64 total_samples, int depth,
81 int depth_mask, int left_margin)
82{
83 struct rb_node *node, *next;
84 struct callchain_node *child = NULL;
85 struct callchain_list *chain;
86 int new_depth_mask = depth_mask;
87 u64 remaining;
88 size_t ret = 0;
89 int i;
90 uint entries_printed = 0;
91 int cumul_count = 0;
92
93 remaining = total_samples;
94
95 node = rb_first(root);
96 while (node) {
97 u64 new_total;
98 u64 cumul;
99
100 child = rb_entry(node, struct callchain_node, rb_node);
101 cumul = callchain_cumul_hits(child);
102 remaining -= cumul;
103 cumul_count += callchain_cumul_counts(child);
104
105
106
107
108
109
110
111
112 next = rb_next(node);
113 if (!next && (callchain_param.mode != CHAIN_GRAPH_REL || !remaining))
114 new_depth_mask &= ~(1 << (depth - 1));
115
116
117
118
119
120 ret += ipchain__fprintf_graph_line(fp, depth, depth_mask,
121 left_margin);
122 i = 0;
123 list_for_each_entry(chain, &child->val, list) {
124 ret += ipchain__fprintf_graph(fp, child, chain, depth,
125 new_depth_mask, i++,
126 total_samples,
127 left_margin);
128 }
129
130 if (callchain_param.mode == CHAIN_GRAPH_REL)
131 new_total = child->children_hit;
132 else
133 new_total = total_samples;
134
135 ret += __callchain__fprintf_graph(fp, &child->rb_root, new_total,
136 depth + 1,
137 new_depth_mask | (1 << depth),
138 left_margin);
139 node = next;
140 if (++entries_printed == callchain_param.print_limit)
141 break;
142 }
143
144 if (callchain_param.mode == CHAIN_GRAPH_REL &&
145 remaining && remaining != total_samples) {
146 struct callchain_node rem_node = {
147 .hit = remaining,
148 };
149
150 if (!rem_sq_bracket)
151 return ret;
152
153 if (callchain_param.value == CCVAL_COUNT && child && child->parent) {
154 rem_node.count = child->parent->children_count - cumul_count;
155 if (rem_node.count <= 0)
156 return ret;
157 }
158
159 new_depth_mask &= ~(1 << (depth - 1));
160 ret += ipchain__fprintf_graph(fp, &rem_node, &rem_hits, depth,
161 new_depth_mask, 0, total_samples,
162 left_margin);
163 }
164
165 return ret;
166}
167
168
169
170
171
172
173
174
175
176static bool need_percent_display(struct rb_node *node, u64 parent_samples)
177{
178 struct callchain_node *cnode;
179
180 if (rb_next(node))
181 return true;
182
183 cnode = rb_entry(node, struct callchain_node, rb_node);
184 return callchain_cumul_hits(cnode) != parent_samples;
185}
186
187static size_t callchain__fprintf_graph(FILE *fp, struct rb_root *root,
188 u64 total_samples, u64 parent_samples,
189 int left_margin)
190{
191 struct callchain_node *cnode;
192 struct callchain_list *chain;
193 u32 entries_printed = 0;
194 bool printed = false;
195 struct rb_node *node;
196 int i = 0;
197 int ret = 0;
198 char bf[1024];
199
200 node = rb_first(root);
201 if (node && !need_percent_display(node, parent_samples)) {
202 cnode = rb_entry(node, struct callchain_node, rb_node);
203 list_for_each_entry(chain, &cnode->val, list) {
204
205
206
207
208
209 if (!i++ && field_order == NULL &&
210 sort_order && !prefixcmp(sort_order, "sym"))
211 continue;
212 if (!printed) {
213 ret += callchain__fprintf_left_margin(fp, left_margin);
214 ret += fprintf(fp, "|\n");
215 ret += callchain__fprintf_left_margin(fp, left_margin);
216 ret += fprintf(fp, "---");
217 left_margin += 3;
218 printed = true;
219 } else
220 ret += callchain__fprintf_left_margin(fp, left_margin);
221
222 ret += fprintf(fp, "%s\n", callchain_list__sym_name(chain, bf, sizeof(bf),
223 false));
224
225 if (++entries_printed == callchain_param.print_limit)
226 break;
227 }
228 root = &cnode->rb_root;
229 }
230
231 if (callchain_param.mode == CHAIN_GRAPH_REL)
232 total_samples = parent_samples;
233
234 ret += __callchain__fprintf_graph(fp, root, total_samples,
235 1, 1, left_margin);
236 if (ret) {
237
238 ret += fprintf(fp, "\n");
239 }
240
241 return ret;
242}
243
244static size_t __callchain__fprintf_flat(FILE *fp, struct callchain_node *node,
245 u64 total_samples)
246{
247 struct callchain_list *chain;
248 size_t ret = 0;
249 char bf[1024];
250
251 if (!node)
252 return 0;
253
254 ret += __callchain__fprintf_flat(fp, node->parent, total_samples);
255
256
257 list_for_each_entry(chain, &node->val, list) {
258 if (chain->ip >= PERF_CONTEXT_MAX)
259 continue;
260 ret += fprintf(fp, " %s\n", callchain_list__sym_name(chain,
261 bf, sizeof(bf), false));
262 }
263
264 return ret;
265}
266
267static size_t callchain__fprintf_flat(FILE *fp, struct rb_root *tree,
268 u64 total_samples)
269{
270 size_t ret = 0;
271 u32 entries_printed = 0;
272 struct callchain_node *chain;
273 struct rb_node *rb_node = rb_first(tree);
274
275 while (rb_node) {
276 chain = rb_entry(rb_node, struct callchain_node, rb_node);
277
278 ret += fprintf(fp, " ");
279 ret += callchain_node__fprintf_value(chain, fp, total_samples);
280 ret += fprintf(fp, "\n");
281 ret += __callchain__fprintf_flat(fp, chain, total_samples);
282 ret += fprintf(fp, "\n");
283 if (++entries_printed == callchain_param.print_limit)
284 break;
285
286 rb_node = rb_next(rb_node);
287 }
288
289 return ret;
290}
291
292static size_t __callchain__fprintf_folded(FILE *fp, struct callchain_node *node)
293{
294 const char *sep = symbol_conf.field_sep ?: ";";
295 struct callchain_list *chain;
296 size_t ret = 0;
297 char bf[1024];
298 bool first;
299
300 if (!node)
301 return 0;
302
303 ret += __callchain__fprintf_folded(fp, node->parent);
304
305 first = (ret == 0);
306 list_for_each_entry(chain, &node->val, list) {
307 if (chain->ip >= PERF_CONTEXT_MAX)
308 continue;
309 ret += fprintf(fp, "%s%s", first ? "" : sep,
310 callchain_list__sym_name(chain,
311 bf, sizeof(bf), false));
312 first = false;
313 }
314
315 return ret;
316}
317
318static size_t callchain__fprintf_folded(FILE *fp, struct rb_root *tree,
319 u64 total_samples)
320{
321 size_t ret = 0;
322 u32 entries_printed = 0;
323 struct callchain_node *chain;
324 struct rb_node *rb_node = rb_first(tree);
325
326 while (rb_node) {
327
328 chain = rb_entry(rb_node, struct callchain_node, rb_node);
329
330 ret += callchain_node__fprintf_value(chain, fp, total_samples);
331 ret += fprintf(fp, " ");
332 ret += __callchain__fprintf_folded(fp, chain);
333 ret += fprintf(fp, "\n");
334 if (++entries_printed == callchain_param.print_limit)
335 break;
336
337 rb_node = rb_next(rb_node);
338 }
339
340 return ret;
341}
342
343static size_t hist_entry_callchain__fprintf(struct hist_entry *he,
344 u64 total_samples, int left_margin,
345 FILE *fp)
346{
347 u64 parent_samples = he->stat.period;
348
349 if (symbol_conf.cumulate_callchain)
350 parent_samples = he->stat_acc->period;
351
352 switch (callchain_param.mode) {
353 case CHAIN_GRAPH_REL:
354 return callchain__fprintf_graph(fp, &he->sorted_chain, total_samples,
355 parent_samples, left_margin);
356 break;
357 case CHAIN_GRAPH_ABS:
358 return callchain__fprintf_graph(fp, &he->sorted_chain, total_samples,
359 parent_samples, left_margin);
360 break;
361 case CHAIN_FLAT:
362 return callchain__fprintf_flat(fp, &he->sorted_chain, total_samples);
363 break;
364 case CHAIN_FOLDED:
365 return callchain__fprintf_folded(fp, &he->sorted_chain, total_samples);
366 break;
367 case CHAIN_NONE:
368 break;
369 default:
370 pr_err("Bad callchain mode\n");
371 }
372
373 return 0;
374}
375
376static int hist_entry__snprintf(struct hist_entry *he, struct perf_hpp *hpp)
377{
378 const char *sep = symbol_conf.field_sep;
379 struct perf_hpp_fmt *fmt;
380 char *start = hpp->buf;
381 int ret;
382 bool first = true;
383
384 if (symbol_conf.exclude_other && !he->parent)
385 return 0;
386
387 hists__for_each_format(he->hists, fmt) {
388 if (perf_hpp__should_skip(fmt, he->hists))
389 continue;
390
391
392
393
394
395 if (!sep || !first) {
396 ret = scnprintf(hpp->buf, hpp->size, "%s", sep ?: " ");
397 advance_hpp(hpp, ret);
398 } else
399 first = false;
400
401 if (perf_hpp__use_color() && fmt->color)
402 ret = fmt->color(fmt, hpp, he);
403 else
404 ret = fmt->entry(fmt, hpp, he);
405
406 ret = hist_entry__snprintf_alignment(he, hpp, fmt, ret);
407 advance_hpp(hpp, ret);
408 }
409
410 return hpp->buf - start;
411}
412
413static int hist_entry__hierarchy_fprintf(struct hist_entry *he,
414 struct perf_hpp *hpp,
415 struct hists *hists,
416 FILE *fp)
417{
418 const char *sep = symbol_conf.field_sep;
419 struct perf_hpp_fmt *fmt;
420 struct perf_hpp_list_node *fmt_node;
421 char *buf = hpp->buf;
422 size_t size = hpp->size;
423 int ret, printed = 0;
424 bool first = true;
425
426 if (symbol_conf.exclude_other && !he->parent)
427 return 0;
428
429 ret = scnprintf(hpp->buf, hpp->size, "%*s", he->depth * HIERARCHY_INDENT, "");
430 advance_hpp(hpp, ret);
431
432
433 fmt_node = list_first_entry(&hists->hpp_formats,
434 struct perf_hpp_list_node, list);
435 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
436
437
438
439
440 if (!sep || !first) {
441 ret = scnprintf(hpp->buf, hpp->size, "%s", sep ?: " ");
442 advance_hpp(hpp, ret);
443 } else
444 first = false;
445
446 if (perf_hpp__use_color() && fmt->color)
447 ret = fmt->color(fmt, hpp, he);
448 else
449 ret = fmt->entry(fmt, hpp, he);
450
451 ret = hist_entry__snprintf_alignment(he, hpp, fmt, ret);
452 advance_hpp(hpp, ret);
453 }
454
455 if (!sep)
456 ret = scnprintf(hpp->buf, hpp->size, "%*s",
457 (hists->nr_hpp_node - 2) * HIERARCHY_INDENT, "");
458 advance_hpp(hpp, ret);
459
460 printed += fprintf(fp, "%s", buf);
461
462 perf_hpp_list__for_each_format(he->hpp_list, fmt) {
463 hpp->buf = buf;
464 hpp->size = size;
465
466
467
468
469
470 if (perf_hpp__use_color() && fmt->color)
471 fmt->color(fmt, hpp, he);
472 else
473 fmt->entry(fmt, hpp, he);
474
475
476
477
478
479 printed += fprintf(fp, "%s%s", sep ?: " ", ltrim(buf));
480 }
481 printed += putc('\n', fp);
482
483 if (symbol_conf.use_callchain && he->leaf) {
484 u64 total = hists__total_period(hists);
485
486 printed += hist_entry_callchain__fprintf(he, total, 0, fp);
487 goto out;
488 }
489
490out:
491 return printed;
492}
493
494static int hist_entry__fprintf(struct hist_entry *he, size_t size,
495 char *bf, size_t bfsz, FILE *fp,
496 bool use_callchain)
497{
498 int ret;
499 struct perf_hpp hpp = {
500 .buf = bf,
501 .size = size,
502 };
503 struct hists *hists = he->hists;
504 u64 total_period = hists->stats.total_period;
505
506 if (size == 0 || size > bfsz)
507 size = hpp.size = bfsz;
508
509 if (symbol_conf.report_hierarchy)
510 return hist_entry__hierarchy_fprintf(he, &hpp, hists, fp);
511
512 hist_entry__snprintf(he, &hpp);
513
514 ret = fprintf(fp, "%s\n", bf);
515
516 if (use_callchain)
517 ret += hist_entry_callchain__fprintf(he, total_period, 0, fp);
518
519 return ret;
520}
521
522static int print_hierarchy_indent(const char *sep, int indent,
523 const char *line, FILE *fp)
524{
525 if (sep != NULL || indent < 2)
526 return 0;
527
528 return fprintf(fp, "%-.*s", (indent - 2) * HIERARCHY_INDENT, line);
529}
530
531static int print_hierarchy_header(struct hists *hists, struct perf_hpp *hpp,
532 const char *sep, FILE *fp)
533{
534 bool first_node, first_col;
535 int indent;
536 int depth;
537 unsigned width = 0;
538 unsigned header_width = 0;
539 struct perf_hpp_fmt *fmt;
540 struct perf_hpp_list_node *fmt_node;
541
542 indent = hists->nr_hpp_node;
543
544
545 print_hierarchy_indent(sep, indent, spaces, fp);
546
547
548 fmt_node = list_first_entry(&hists->hpp_formats,
549 struct perf_hpp_list_node, list);
550
551 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
552 fmt->header(fmt, hpp, hists);
553 fprintf(fp, "%s%s", hpp->buf, sep ?: " ");
554 }
555
556
557 first_node = true;
558 list_for_each_entry_continue(fmt_node, &hists->hpp_formats, list) {
559 if (!first_node)
560 header_width += fprintf(fp, " / ");
561 first_node = false;
562
563 first_col = true;
564 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
565 if (perf_hpp__should_skip(fmt, hists))
566 continue;
567
568 if (!first_col)
569 header_width += fprintf(fp, "+");
570 first_col = false;
571
572 fmt->header(fmt, hpp, hists);
573
574 header_width += fprintf(fp, "%s", trim(hpp->buf));
575 }
576 }
577
578 fprintf(fp, "\n# ");
579
580
581 print_hierarchy_indent(sep, indent, dots, fp);
582
583
584 fmt_node = list_first_entry(&hists->hpp_formats,
585 struct perf_hpp_list_node, list);
586
587 first_col = true;
588 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
589 if (!first_col)
590 fprintf(fp, "%s", sep ?: "..");
591 first_col = false;
592
593 width = fmt->width(fmt, hpp, hists);
594 fprintf(fp, "%.*s", width, dots);
595 }
596
597 depth = 0;
598 list_for_each_entry_continue(fmt_node, &hists->hpp_formats, list) {
599 first_col = true;
600 width = depth * HIERARCHY_INDENT;
601
602 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
603 if (perf_hpp__should_skip(fmt, hists))
604 continue;
605
606 if (!first_col)
607 width++;
608 first_col = false;
609
610 width += fmt->width(fmt, hpp, hists);
611 }
612
613 if (width > header_width)
614 header_width = width;
615
616 depth++;
617 }
618
619 fprintf(fp, "%s%-.*s", sep ?: " ", header_width, dots);
620
621 fprintf(fp, "\n#\n");
622
623 return 2;
624}
625
626static int
627hists__fprintf_hierarchy_headers(struct hists *hists,
628 struct perf_hpp *hpp,
629 FILE *fp)
630{
631 struct perf_hpp_list_node *fmt_node;
632 struct perf_hpp_fmt *fmt;
633
634 list_for_each_entry(fmt_node, &hists->hpp_formats, list) {
635 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt)
636 perf_hpp__reset_width(fmt, hists);
637 }
638
639 return print_hierarchy_header(hists, hpp, symbol_conf.field_sep, fp);
640}
641
642static int
643hists__fprintf_standard_headers(struct hists *hists,
644 struct perf_hpp *hpp,
645 FILE *fp)
646{
647 struct perf_hpp_fmt *fmt;
648 unsigned int width;
649 const char *sep = symbol_conf.field_sep;
650 bool first = true;
651
652 hists__for_each_format(hists, fmt) {
653 if (perf_hpp__should_skip(fmt, hists))
654 continue;
655
656 if (!first)
657 fprintf(fp, "%s", sep ?: " ");
658 else
659 first = false;
660
661 fmt->header(fmt, hpp, hists);
662 fprintf(fp, "%s", hpp->buf);
663 }
664
665 fprintf(fp, "\n");
666
667 if (sep)
668 return 1;
669
670 first = true;
671
672 fprintf(fp, "# ");
673
674 hists__for_each_format(hists, fmt) {
675 unsigned int i;
676
677 if (perf_hpp__should_skip(fmt, hists))
678 continue;
679
680 if (!first)
681 fprintf(fp, "%s", sep ?: " ");
682 else
683 first = false;
684
685 width = fmt->width(fmt, hpp, hists);
686 for (i = 0; i < width; i++)
687 fprintf(fp, ".");
688 }
689
690 fprintf(fp, "\n");
691 fprintf(fp, "#\n");
692 return 3;
693}
694
695static int hists__fprintf_headers(struct hists *hists, FILE *fp)
696{
697 char bf[96];
698 struct perf_hpp dummy_hpp = {
699 .buf = bf,
700 .size = sizeof(bf),
701 };
702
703 fprintf(fp, "# ");
704
705 if (symbol_conf.report_hierarchy)
706 return hists__fprintf_hierarchy_headers(hists, &dummy_hpp, fp);
707 else
708 return hists__fprintf_standard_headers(hists, &dummy_hpp, fp);
709
710}
711
712size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
713 int max_cols, float min_pcnt, FILE *fp,
714 bool use_callchain)
715{
716 struct perf_hpp_fmt *fmt;
717 struct rb_node *nd;
718 size_t ret = 0;
719 const char *sep = symbol_conf.field_sep;
720 int nr_rows = 0;
721 size_t linesz;
722 char *line = NULL;
723 unsigned indent;
724
725 init_rem_hits();
726
727 hists__for_each_format(hists, fmt)
728 perf_hpp__reset_width(fmt, hists);
729
730 if (symbol_conf.col_width_list_str)
731 perf_hpp__set_user_width(symbol_conf.col_width_list_str);
732
733 if (show_header)
734 nr_rows += hists__fprintf_headers(hists, fp);
735
736 if (max_rows && nr_rows >= max_rows)
737 goto out;
738
739 linesz = hists__sort_list_width(hists) + 3 + 1;
740 linesz += perf_hpp__color_overhead();
741 line = malloc(linesz);
742 if (line == NULL) {
743 ret = -1;
744 goto out;
745 }
746
747 indent = hists__overhead_width(hists) + 4;
748
749 for (nd = rb_first(&hists->entries); nd; nd = __rb_hierarchy_next(nd, HMD_FORCE_CHILD)) {
750 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
751 float percent;
752
753 if (h->filtered)
754 continue;
755
756 percent = hist_entry__get_percent_limit(h);
757 if (percent < min_pcnt)
758 continue;
759
760 ret += hist_entry__fprintf(h, max_cols, line, linesz, fp, use_callchain);
761
762 if (max_rows && ++nr_rows >= max_rows)
763 break;
764
765
766
767
768
769 if (!h->leaf && !hist_entry__has_hierarchy_children(h, min_pcnt)) {
770 int depth = hists->nr_hpp_node + h->depth + 1;
771
772 print_hierarchy_indent(sep, depth, spaces, fp);
773 fprintf(fp, "%*sno entry >= %.2f%%\n", indent, "", min_pcnt);
774
775 if (max_rows && ++nr_rows >= max_rows)
776 break;
777 }
778
779 if (h->ms.map == NULL && verbose > 1) {
780 __map_groups__fprintf_maps(h->thread->mg,
781 MAP__FUNCTION, fp);
782 fprintf(fp, "%.10s end\n", graph_dotted_line);
783 }
784 }
785
786 free(line);
787out:
788 zfree(&rem_sq_bracket);
789
790 return ret;
791}
792
793size_t events_stats__fprintf(struct events_stats *stats, FILE *fp)
794{
795 int i;
796 size_t ret = 0;
797
798 for (i = 0; i < PERF_RECORD_HEADER_MAX; ++i) {
799 const char *name;
800
801 if (stats->nr_events[i] == 0)
802 continue;
803
804 name = perf_event__name(i);
805 if (!strcmp(name, "UNKNOWN"))
806 continue;
807
808 ret += fprintf(fp, "%16s events: %10d\n", name,
809 stats->nr_events[i]);
810 }
811
812 return ret;
813}
814
