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1// SPDX-License-Identifier: GPL-2.0
2#include <stdio.h>
3#include <stdlib.h>
4#include <linux/string.h>
5
6#include "../../util/callchain.h"
7#include "../../util/debug.h"
8#include "../../util/event.h"
9#include "../../util/hist.h"
10#include "../../util/map.h"
11#include "../../util/map_groups.h"
12#include "../../util/symbol.h"
13#include "../../util/sort.h"
14#include "../../util/evsel.h"
15#include "../../util/srcline.h"
16#include "../../util/string2.h"
17#include "../../util/thread.h"
18#include <linux/ctype.h>
19#include <linux/zalloc.h>
20
21static size_t callchain__fprintf_left_margin(FILE *fp, int left_margin)
22{
23 int i;
24 int ret = fprintf(fp, " ");
25
26 for (i = 0; i < left_margin; i++)
27 ret += fprintf(fp, " ");
28
29 return ret;
30}
31
32static size_t ipchain__fprintf_graph_line(FILE *fp, int depth, int depth_mask,
33 int left_margin)
34{
35 int i;
36 size_t ret = callchain__fprintf_left_margin(fp, left_margin);
37
38 for (i = 0; i < depth; i++)
39 if (depth_mask & (1 << i))
40 ret += fprintf(fp, "| ");
41 else
42 ret += fprintf(fp, " ");
43
44 ret += fprintf(fp, "\n");
45
46 return ret;
47}
48
49static size_t ipchain__fprintf_graph(FILE *fp, struct callchain_node *node,
50 struct callchain_list *chain,
51 int depth, int depth_mask, int period,
52 u64 total_samples, int left_margin)
53{
54 int i;
55 size_t ret = 0;
56 char bf[1024], *alloc_str = NULL;
57 char buf[64];
58 const char *str;
59
60 ret += callchain__fprintf_left_margin(fp, left_margin);
61 for (i = 0; i < depth; i++) {
62 if (depth_mask & (1 << i))
63 ret += fprintf(fp, "|");
64 else
65 ret += fprintf(fp, " ");
66 if (!period && i == depth - 1) {
67 ret += fprintf(fp, "--");
68 ret += callchain_node__fprintf_value(node, fp, total_samples);
69 ret += fprintf(fp, "--");
70 } else
71 ret += fprintf(fp, "%s", " ");
72 }
73
74 str = callchain_list__sym_name(chain, bf, sizeof(bf), false);
75
76 if (symbol_conf.show_branchflag_count) {
77 callchain_list_counts__printf_value(chain, NULL,
78 buf, sizeof(buf));
79
80 if (asprintf(&alloc_str, "%s%s", str, buf) < 0)
81 str = "Not enough memory!";
82 else
83 str = alloc_str;
84 }
85
86 fputs(str, fp);
87 fputc('\n', fp);
88 free(alloc_str);
89
90 return ret;
91}
92
93static struct symbol *rem_sq_bracket;
94static struct callchain_list rem_hits;
95
96static void init_rem_hits(void)
97{
98 rem_sq_bracket = malloc(sizeof(*rem_sq_bracket) + 6);
99 if (!rem_sq_bracket) {
100 fprintf(stderr, "Not enough memory to display remaining hits\n");
101 return;
102 }
103
104 strcpy(rem_sq_bracket->name, "[...]");
105 rem_hits.ms.sym = rem_sq_bracket;
106}
107
108static size_t __callchain__fprintf_graph(FILE *fp, struct rb_root *root,
109 u64 total_samples, int depth,
110 int depth_mask, int left_margin)
111{
112 struct rb_node *node, *next;
113 struct callchain_node *child = NULL;
114 struct callchain_list *chain;
115 int new_depth_mask = depth_mask;
116 u64 remaining;
117 size_t ret = 0;
118 int i;
119 uint entries_printed = 0;
120 int cumul_count = 0;
121
122 remaining = total_samples;
123
124 node = rb_first(root);
125 while (node) {
126 u64 new_total;
127 u64 cumul;
128
129 child = rb_entry(node, struct callchain_node, rb_node);
130 cumul = callchain_cumul_hits(child);
131 remaining -= cumul;
132 cumul_count += callchain_cumul_counts(child);
133
134 /*
135 * The depth mask manages the output of pipes that show
136 * the depth. We don't want to keep the pipes of the current
137 * level for the last child of this depth.
138 * Except if we have remaining filtered hits. They will
139 * supersede the last child
140 */
141 next = rb_next(node);
142 if (!next && (callchain_param.mode != CHAIN_GRAPH_REL || !remaining))
143 new_depth_mask &= ~(1 << (depth - 1));
144
145 /*
146 * But we keep the older depth mask for the line separator
147 * to keep the level link until we reach the last child
148 */
149 ret += ipchain__fprintf_graph_line(fp, depth, depth_mask,
150 left_margin);
151 i = 0;
152 list_for_each_entry(chain, &child->val, list) {
153 ret += ipchain__fprintf_graph(fp, child, chain, depth,
154 new_depth_mask, i++,
155 total_samples,
156 left_margin);
157 }
158
159 if (callchain_param.mode == CHAIN_GRAPH_REL)
160 new_total = child->children_hit;
161 else
162 new_total = total_samples;
163
164 ret += __callchain__fprintf_graph(fp, &child->rb_root, new_total,
165 depth + 1,
166 new_depth_mask | (1 << depth),
167 left_margin);
168 node = next;
169 if (++entries_printed == callchain_param.print_limit)
170 break;
171 }
172
173 if (callchain_param.mode == CHAIN_GRAPH_REL &&
174 remaining && remaining != total_samples) {
175 struct callchain_node rem_node = {
176 .hit = remaining,
177 };
178
179 if (!rem_sq_bracket)
180 return ret;
181
182 if (callchain_param.value == CCVAL_COUNT && child && child->parent) {
183 rem_node.count = child->parent->children_count - cumul_count;
184 if (rem_node.count <= 0)
185 return ret;
186 }
187
188 new_depth_mask &= ~(1 << (depth - 1));
189 ret += ipchain__fprintf_graph(fp, &rem_node, &rem_hits, depth,
190 new_depth_mask, 0, total_samples,
191 left_margin);
192 }
193
194 return ret;
195}
196
197/*
198 * If have one single callchain root, don't bother printing
199 * its percentage (100 % in fractal mode and the same percentage
200 * than the hist in graph mode). This also avoid one level of column.
201 *
202 * However when percent-limit applied, it's possible that single callchain
203 * node have different (non-100% in fractal mode) percentage.
204 */
205static bool need_percent_display(struct rb_node *node, u64 parent_samples)
206{
207 struct callchain_node *cnode;
208
209 if (rb_next(node))
210 return true;
211
212 cnode = rb_entry(node, struct callchain_node, rb_node);
213 return callchain_cumul_hits(cnode) != parent_samples;
214}
215
216static size_t callchain__fprintf_graph(FILE *fp, struct rb_root *root,
217 u64 total_samples, u64 parent_samples,
218 int left_margin)
219{
220 struct callchain_node *cnode;
221 struct callchain_list *chain;
222 u32 entries_printed = 0;
223 bool printed = false;
224 struct rb_node *node;
225 int i = 0;
226 int ret = 0;
227 char bf[1024];
228
229 node = rb_first(root);
230 if (node && !need_percent_display(node, parent_samples)) {
231 cnode = rb_entry(node, struct callchain_node, rb_node);
232 list_for_each_entry(chain, &cnode->val, list) {
233 /*
234 * If we sort by symbol, the first entry is the same than
235 * the symbol. No need to print it otherwise it appears as
236 * displayed twice.
237 */
238 if (!i++ && field_order == NULL &&
239 sort_order && strstarts(sort_order, "sym"))
240 continue;
241
242 if (!printed) {
243 ret += callchain__fprintf_left_margin(fp, left_margin);
244 ret += fprintf(fp, "|\n");
245 ret += callchain__fprintf_left_margin(fp, left_margin);
246 ret += fprintf(fp, "---");
247 left_margin += 3;
248 printed = true;
249 } else
250 ret += callchain__fprintf_left_margin(fp, left_margin);
251
252 ret += fprintf(fp, "%s",
253 callchain_list__sym_name(chain, bf,
254 sizeof(bf),
255 false));
256
257 if (symbol_conf.show_branchflag_count)
258 ret += callchain_list_counts__printf_value(
259 chain, fp, NULL, 0);
260 ret += fprintf(fp, "\n");
261
262 if (++entries_printed == callchain_param.print_limit)
263 break;
264 }
265 root = &cnode->rb_root;
266 }
267
268 if (callchain_param.mode == CHAIN_GRAPH_REL)
269 total_samples = parent_samples;
270
271 ret += __callchain__fprintf_graph(fp, root, total_samples,
272 1, 1, left_margin);
273 if (ret) {
274 /* do not add a blank line if it printed nothing */
275 ret += fprintf(fp, "\n");
276 }
277
278 return ret;
279}
280
281static size_t __callchain__fprintf_flat(FILE *fp, struct callchain_node *node,
282 u64 total_samples)
283{
284 struct callchain_list *chain;
285 size_t ret = 0;
286 char bf[1024];
287
288 if (!node)
289 return 0;
290
291 ret += __callchain__fprintf_flat(fp, node->parent, total_samples);
292
293
294 list_for_each_entry(chain, &node->val, list) {
295 if (chain->ip >= PERF_CONTEXT_MAX)
296 continue;
297 ret += fprintf(fp, " %s\n", callchain_list__sym_name(chain,
298 bf, sizeof(bf), false));
299 }
300
301 return ret;
302}
303
304static size_t callchain__fprintf_flat(FILE *fp, struct rb_root *tree,
305 u64 total_samples)
306{
307 size_t ret = 0;
308 u32 entries_printed = 0;
309 struct callchain_node *chain;
310 struct rb_node *rb_node = rb_first(tree);
311
312 while (rb_node) {
313 chain = rb_entry(rb_node, struct callchain_node, rb_node);
314
315 ret += fprintf(fp, " ");
316 ret += callchain_node__fprintf_value(chain, fp, total_samples);
317 ret += fprintf(fp, "\n");
318 ret += __callchain__fprintf_flat(fp, chain, total_samples);
319 ret += fprintf(fp, "\n");
320 if (++entries_printed == callchain_param.print_limit)
321 break;
322
323 rb_node = rb_next(rb_node);
324 }
325
326 return ret;
327}
328
329static size_t __callchain__fprintf_folded(FILE *fp, struct callchain_node *node)
330{
331 const char *sep = symbol_conf.field_sep ?: ";";
332 struct callchain_list *chain;
333 size_t ret = 0;
334 char bf[1024];
335 bool first;
336
337 if (!node)
338 return 0;
339
340 ret += __callchain__fprintf_folded(fp, node->parent);
341
342 first = (ret == 0);
343 list_for_each_entry(chain, &node->val, list) {
344 if (chain->ip >= PERF_CONTEXT_MAX)
345 continue;
346 ret += fprintf(fp, "%s%s", first ? "" : sep,
347 callchain_list__sym_name(chain,
348 bf, sizeof(bf), false));
349 first = false;
350 }
351
352 return ret;
353}
354
355static size_t callchain__fprintf_folded(FILE *fp, struct rb_root *tree,
356 u64 total_samples)
357{
358 size_t ret = 0;
359 u32 entries_printed = 0;
360 struct callchain_node *chain;
361 struct rb_node *rb_node = rb_first(tree);
362
363 while (rb_node) {
364
365 chain = rb_entry(rb_node, struct callchain_node, rb_node);
366
367 ret += callchain_node__fprintf_value(chain, fp, total_samples);
368 ret += fprintf(fp, " ");
369 ret += __callchain__fprintf_folded(fp, chain);
370 ret += fprintf(fp, "\n");
371 if (++entries_printed == callchain_param.print_limit)
372 break;
373
374 rb_node = rb_next(rb_node);
375 }
376
377 return ret;
378}
379
380static size_t hist_entry_callchain__fprintf(struct hist_entry *he,
381 u64 total_samples, int left_margin,
382 FILE *fp)
383{
384 u64 parent_samples = he->stat.period;
385
386 if (symbol_conf.cumulate_callchain)
387 parent_samples = he->stat_acc->period;
388
389 switch (callchain_param.mode) {
390 case CHAIN_GRAPH_REL:
391 return callchain__fprintf_graph(fp, &he->sorted_chain, total_samples,
392 parent_samples, left_margin);
393 break;
394 case CHAIN_GRAPH_ABS:
395 return callchain__fprintf_graph(fp, &he->sorted_chain, total_samples,
396 parent_samples, left_margin);
397 break;
398 case CHAIN_FLAT:
399 return callchain__fprintf_flat(fp, &he->sorted_chain, total_samples);
400 break;
401 case CHAIN_FOLDED:
402 return callchain__fprintf_folded(fp, &he->sorted_chain, total_samples);
403 break;
404 case CHAIN_NONE:
405 break;
406 default:
407 pr_err("Bad callchain mode\n");
408 }
409
410 return 0;
411}
412
413int __hist_entry__snprintf(struct hist_entry *he, struct perf_hpp *hpp,
414 struct perf_hpp_list *hpp_list)
415{
416 const char *sep = symbol_conf.field_sep;
417 struct perf_hpp_fmt *fmt;
418 char *start = hpp->buf;
419 int ret;
420 bool first = true;
421
422 if (symbol_conf.exclude_other && !he->parent)
423 return 0;
424
425 perf_hpp_list__for_each_format(hpp_list, fmt) {
426 if (perf_hpp__should_skip(fmt, he->hists))
427 continue;
428
429 /*
430 * If there's no field_sep, we still need
431 * to display initial ' '.
432 */
433 if (!sep || !first) {
434 ret = scnprintf(hpp->buf, hpp->size, "%s", sep ?: " ");
435 advance_hpp(hpp, ret);
436 } else
437 first = false;
438
439 if (perf_hpp__use_color() && fmt->color)
440 ret = fmt->color(fmt, hpp, he);
441 else
442 ret = fmt->entry(fmt, hpp, he);
443
444 ret = hist_entry__snprintf_alignment(he, hpp, fmt, ret);
445 advance_hpp(hpp, ret);
446 }
447
448 return hpp->buf - start;
449}
450
451static int hist_entry__snprintf(struct hist_entry *he, struct perf_hpp *hpp)
452{
453 return __hist_entry__snprintf(he, hpp, he->hists->hpp_list);
454}
455
456static int hist_entry__hierarchy_fprintf(struct hist_entry *he,
457 struct perf_hpp *hpp,
458 struct hists *hists,
459 FILE *fp)
460{
461 const char *sep = symbol_conf.field_sep;
462 struct perf_hpp_fmt *fmt;
463 struct perf_hpp_list_node *fmt_node;
464 char *buf = hpp->buf;
465 size_t size = hpp->size;
466 int ret, printed = 0;
467 bool first = true;
468
469 if (symbol_conf.exclude_other && !he->parent)
470 return 0;
471
472 ret = scnprintf(hpp->buf, hpp->size, "%*s", he->depth * HIERARCHY_INDENT, "");
473 advance_hpp(hpp, ret);
474
475 /* the first hpp_list_node is for overhead columns */
476 fmt_node = list_first_entry(&hists->hpp_formats,
477 struct perf_hpp_list_node, list);
478 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
479 /*
480 * If there's no field_sep, we still need
481 * to display initial ' '.
482 */
483 if (!sep || !first) {
484 ret = scnprintf(hpp->buf, hpp->size, "%s", sep ?: " ");
485 advance_hpp(hpp, ret);
486 } else
487 first = false;
488
489 if (perf_hpp__use_color() && fmt->color)
490 ret = fmt->color(fmt, hpp, he);
491 else
492 ret = fmt->entry(fmt, hpp, he);
493
494 ret = hist_entry__snprintf_alignment(he, hpp, fmt, ret);
495 advance_hpp(hpp, ret);
496 }
497
498 if (!sep)
499 ret = scnprintf(hpp->buf, hpp->size, "%*s",
500 (hists->nr_hpp_node - 2) * HIERARCHY_INDENT, "");
501 advance_hpp(hpp, ret);
502
503 printed += fprintf(fp, "%s", buf);
504
505 perf_hpp_list__for_each_format(he->hpp_list, fmt) {
506 hpp->buf = buf;
507 hpp->size = size;
508
509 /*
510 * No need to call hist_entry__snprintf_alignment() since this
511 * fmt is always the last column in the hierarchy mode.
512 */
513 if (perf_hpp__use_color() && fmt->color)
514 fmt->color(fmt, hpp, he);
515 else
516 fmt->entry(fmt, hpp, he);
517
518 /*
519 * dynamic entries are right-aligned but we want left-aligned
520 * in the hierarchy mode
521 */
522 printed += fprintf(fp, "%s%s", sep ?: " ", skip_spaces(buf));
523 }
524 printed += putc('\n', fp);
525
526 if (he->leaf && hist_entry__has_callchains(he) && symbol_conf.use_callchain) {
527 u64 total = hists__total_period(hists);
528
529 printed += hist_entry_callchain__fprintf(he, total, 0, fp);
530 goto out;
531 }
532
533out:
534 return printed;
535}
536
537static int hist_entry__block_fprintf(struct hist_entry *he,
538 char *bf, size_t size,
539 FILE *fp)
540{
541 struct block_hist *bh = container_of(he, struct block_hist, he);
542 int ret = 0;
543
544 for (unsigned int i = 0; i < bh->block_hists.nr_entries; i++) {
545 struct perf_hpp hpp = {
546 .buf = bf,
547 .size = size,
548 .skip = false,
549 };
550
551 bh->block_idx = i;
552 hist_entry__snprintf(he, &hpp);
553
554 if (!hpp.skip)
555 ret += fprintf(fp, "%s\n", bf);
556 }
557
558 return ret;
559}
560
561static int hist_entry__fprintf(struct hist_entry *he, size_t size,
562 char *bf, size_t bfsz, FILE *fp,
563 bool ignore_callchains)
564{
565 int ret;
566 int callchain_ret = 0;
567 struct perf_hpp hpp = {
568 .buf = bf,
569 .size = size,
570 };
571 struct hists *hists = he->hists;
572 u64 total_period = hists->stats.total_period;
573
574 if (size == 0 || size > bfsz)
575 size = hpp.size = bfsz;
576
577 if (symbol_conf.report_hierarchy)
578 return hist_entry__hierarchy_fprintf(he, &hpp, hists, fp);
579
580 if (symbol_conf.report_block)
581 return hist_entry__block_fprintf(he, bf, size, fp);
582
583 hist_entry__snprintf(he, &hpp);
584
585 ret = fprintf(fp, "%s\n", bf);
586
587 if (hist_entry__has_callchains(he) && !ignore_callchains)
588 callchain_ret = hist_entry_callchain__fprintf(he, total_period,
589 0, fp);
590
591 ret += callchain_ret;
592
593 return ret;
594}
595
596static int print_hierarchy_indent(const char *sep, int indent,
597 const char *line, FILE *fp)
598{
599 int width;
600
601 if (sep != NULL || indent < 2)
602 return 0;
603
604 width = (indent - 2) * HIERARCHY_INDENT;
605
606 return fprintf(fp, "%-*.*s", width, width, line);
607}
608
609static int hists__fprintf_hierarchy_headers(struct hists *hists,
610 struct perf_hpp *hpp, FILE *fp)
611{
612 bool first_node, first_col;
613 int indent;
614 int depth;
615 unsigned width = 0;
616 unsigned header_width = 0;
617 struct perf_hpp_fmt *fmt;
618 struct perf_hpp_list_node *fmt_node;
619 const char *sep = symbol_conf.field_sep;
620
621 indent = hists->nr_hpp_node;
622
623 /* preserve max indent depth for column headers */
624 print_hierarchy_indent(sep, indent, " ", fp);
625
626 /* the first hpp_list_node is for overhead columns */
627 fmt_node = list_first_entry(&hists->hpp_formats,
628 struct perf_hpp_list_node, list);
629
630 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
631 fmt->header(fmt, hpp, hists, 0, NULL);
632 fprintf(fp, "%s%s", hpp->buf, sep ?: " ");
633 }
634
635 /* combine sort headers with ' / ' */
636 first_node = true;
637 list_for_each_entry_continue(fmt_node, &hists->hpp_formats, list) {
638 if (!first_node)
639 header_width += fprintf(fp, " / ");
640 first_node = false;
641
642 first_col = true;
643 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
644 if (perf_hpp__should_skip(fmt, hists))
645 continue;
646
647 if (!first_col)
648 header_width += fprintf(fp, "+");
649 first_col = false;
650
651 fmt->header(fmt, hpp, hists, 0, NULL);
652
653 header_width += fprintf(fp, "%s", strim(hpp->buf));
654 }
655 }
656
657 fprintf(fp, "\n# ");
658
659 /* preserve max indent depth for initial dots */
660 print_hierarchy_indent(sep, indent, dots, fp);
661
662 /* the first hpp_list_node is for overhead columns */
663 fmt_node = list_first_entry(&hists->hpp_formats,
664 struct perf_hpp_list_node, list);
665
666 first_col = true;
667 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
668 if (!first_col)
669 fprintf(fp, "%s", sep ?: "..");
670 first_col = false;
671
672 width = fmt->width(fmt, hpp, hists);
673 fprintf(fp, "%.*s", width, dots);
674 }
675
676 depth = 0;
677 list_for_each_entry_continue(fmt_node, &hists->hpp_formats, list) {
678 first_col = true;
679 width = depth * HIERARCHY_INDENT;
680
681 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
682 if (perf_hpp__should_skip(fmt, hists))
683 continue;
684
685 if (!first_col)
686 width++; /* for '+' sign between column header */
687 first_col = false;
688
689 width += fmt->width(fmt, hpp, hists);
690 }
691
692 if (width > header_width)
693 header_width = width;
694
695 depth++;
696 }
697
698 fprintf(fp, "%s%-.*s", sep ?: " ", header_width, dots);
699
700 fprintf(fp, "\n#\n");
701
702 return 2;
703}
704
705static void fprintf_line(struct hists *hists, struct perf_hpp *hpp,
706 int line, FILE *fp)
707{
708 struct perf_hpp_fmt *fmt;
709 const char *sep = symbol_conf.field_sep;
710 bool first = true;
711 int span = 0;
712
713 hists__for_each_format(hists, fmt) {
714 if (perf_hpp__should_skip(fmt, hists))
715 continue;
716
717 if (!first && !span)
718 fprintf(fp, "%s", sep ?: " ");
719 else
720 first = false;
721
722 fmt->header(fmt, hpp, hists, line, &span);
723
724 if (!span)
725 fprintf(fp, "%s", hpp->buf);
726 }
727}
728
729static int
730hists__fprintf_standard_headers(struct hists *hists,
731 struct perf_hpp *hpp,
732 FILE *fp)
733{
734 struct perf_hpp_list *hpp_list = hists->hpp_list;
735 struct perf_hpp_fmt *fmt;
736 unsigned int width;
737 const char *sep = symbol_conf.field_sep;
738 bool first = true;
739 int line;
740
741 for (line = 0; line < hpp_list->nr_header_lines; line++) {
742 /* first # is displayed one level up */
743 if (line)
744 fprintf(fp, "# ");
745 fprintf_line(hists, hpp, line, fp);
746 fprintf(fp, "\n");
747 }
748
749 if (sep)
750 return hpp_list->nr_header_lines;
751
752 first = true;
753
754 fprintf(fp, "# ");
755
756 hists__for_each_format(hists, fmt) {
757 unsigned int i;
758
759 if (perf_hpp__should_skip(fmt, hists))
760 continue;
761
762 if (!first)
763 fprintf(fp, "%s", sep ?: " ");
764 else
765 first = false;
766
767 width = fmt->width(fmt, hpp, hists);
768 for (i = 0; i < width; i++)
769 fprintf(fp, ".");
770 }
771
772 fprintf(fp, "\n");
773 fprintf(fp, "#\n");
774 return hpp_list->nr_header_lines + 2;
775}
776
777int hists__fprintf_headers(struct hists *hists, FILE *fp)
778{
779 char bf[1024];
780 struct perf_hpp dummy_hpp = {
781 .buf = bf,
782 .size = sizeof(bf),
783 };
784
785 fprintf(fp, "# ");
786
787 if (symbol_conf.report_hierarchy)
788 return hists__fprintf_hierarchy_headers(hists, &dummy_hpp, fp);
789 else
790 return hists__fprintf_standard_headers(hists, &dummy_hpp, fp);
791
792}
793
794size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
795 int max_cols, float min_pcnt, FILE *fp,
796 bool ignore_callchains)
797{
798 struct rb_node *nd;
799 size_t ret = 0;
800 const char *sep = symbol_conf.field_sep;
801 int nr_rows = 0;
802 size_t linesz;
803 char *line = NULL;
804 unsigned indent;
805
806 init_rem_hits();
807
808 hists__reset_column_width(hists);
809
810 if (symbol_conf.col_width_list_str)
811 perf_hpp__set_user_width(symbol_conf.col_width_list_str);
812
813 if (show_header)
814 nr_rows += hists__fprintf_headers(hists, fp);
815
816 if (max_rows && nr_rows >= max_rows)
817 goto out;
818
819 linesz = hists__sort_list_width(hists) + 3 + 1;
820 linesz += perf_hpp__color_overhead();
821 line = malloc(linesz);
822 if (line == NULL) {
823 ret = -1;
824 goto out;
825 }
826
827 indent = hists__overhead_width(hists) + 4;
828
829 for (nd = rb_first_cached(&hists->entries); nd;
830 nd = __rb_hierarchy_next(nd, HMD_FORCE_CHILD)) {
831 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
832 float percent;
833
834 if (h->filtered)
835 continue;
836
837 percent = hist_entry__get_percent_limit(h);
838 if (percent < min_pcnt)
839 continue;
840
841 ret += hist_entry__fprintf(h, max_cols, line, linesz, fp, ignore_callchains);
842
843 if (max_rows && ++nr_rows >= max_rows)
844 break;
845
846 /*
847 * If all children are filtered out or percent-limited,
848 * display "no entry >= x.xx%" message.
849 */
850 if (!h->leaf && !hist_entry__has_hierarchy_children(h, min_pcnt)) {
851 int depth = hists->nr_hpp_node + h->depth + 1;
852
853 print_hierarchy_indent(sep, depth, " ", fp);
854 fprintf(fp, "%*sno entry >= %.2f%%\n", indent, "", min_pcnt);
855
856 if (max_rows && ++nr_rows >= max_rows)
857 break;
858 }
859
860 if (h->ms.map == NULL && verbose > 1) {
861 map_groups__fprintf(h->thread->mg, fp);
862 fprintf(fp, "%.10s end\n", graph_dotted_line);
863 }
864 }
865
866 free(line);
867out:
868 zfree(&rem_sq_bracket);
869
870 return ret;
871}
872
873size_t events_stats__fprintf(struct events_stats *stats, FILE *fp)
874{
875 int i;
876 size_t ret = 0;
877
878 for (i = 0; i < PERF_RECORD_HEADER_MAX; ++i) {
879 const char *name;
880
881 name = perf_event__name(i);
882 if (!strcmp(name, "UNKNOWN"))
883 continue;
884
885 ret += fprintf(fp, "%16s events: %10d\n", name, stats->nr_events[i]);
886 }
887
888 return ret;
889}
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_list *chain,
38 int depth, int depth_mask, int period,
39 u64 total_samples, u64 hits,
40 int left_margin)
41{
42 int i;
43 size_t ret = 0;
44
45 ret += callchain__fprintf_left_margin(fp, left_margin);
46 for (i = 0; i < depth; i++) {
47 if (depth_mask & (1 << i))
48 ret += fprintf(fp, "|");
49 else
50 ret += fprintf(fp, " ");
51 if (!period && i == depth - 1) {
52 double percent;
53
54 percent = hits * 100.0 / total_samples;
55 ret += percent_color_fprintf(fp, "--%2.2f%%-- ", percent);
56 } else
57 ret += fprintf(fp, "%s", " ");
58 }
59 if (chain->ms.sym)
60 ret += fprintf(fp, "%s\n", chain->ms.sym->name);
61 else
62 ret += fprintf(fp, "0x%0" PRIx64 "\n", chain->ip);
63
64 return ret;
65}
66
67static struct symbol *rem_sq_bracket;
68static struct callchain_list rem_hits;
69
70static void init_rem_hits(void)
71{
72 rem_sq_bracket = malloc(sizeof(*rem_sq_bracket) + 6);
73 if (!rem_sq_bracket) {
74 fprintf(stderr, "Not enough memory to display remaining hits\n");
75 return;
76 }
77
78 strcpy(rem_sq_bracket->name, "[...]");
79 rem_hits.ms.sym = rem_sq_bracket;
80}
81
82static size_t __callchain__fprintf_graph(FILE *fp, struct rb_root *root,
83 u64 total_samples, int depth,
84 int depth_mask, int left_margin)
85{
86 struct rb_node *node, *next;
87 struct callchain_node *child;
88 struct callchain_list *chain;
89 int new_depth_mask = depth_mask;
90 u64 remaining;
91 size_t ret = 0;
92 int i;
93 uint entries_printed = 0;
94
95 remaining = total_samples;
96
97 node = rb_first(root);
98 while (node) {
99 u64 new_total;
100 u64 cumul;
101
102 child = rb_entry(node, struct callchain_node, rb_node);
103 cumul = callchain_cumul_hits(child);
104 remaining -= cumul;
105
106 /*
107 * The depth mask manages the output of pipes that show
108 * the depth. We don't want to keep the pipes of the current
109 * level for the last child of this depth.
110 * Except if we have remaining filtered hits. They will
111 * supersede the last child
112 */
113 next = rb_next(node);
114 if (!next && (callchain_param.mode != CHAIN_GRAPH_REL || !remaining))
115 new_depth_mask &= ~(1 << (depth - 1));
116
117 /*
118 * But we keep the older depth mask for the line separator
119 * to keep the level link until we reach the last child
120 */
121 ret += ipchain__fprintf_graph_line(fp, depth, depth_mask,
122 left_margin);
123 i = 0;
124 list_for_each_entry(chain, &child->val, list) {
125 ret += ipchain__fprintf_graph(fp, chain, depth,
126 new_depth_mask, i++,
127 total_samples,
128 cumul,
129 left_margin);
130 }
131
132 if (callchain_param.mode == CHAIN_GRAPH_REL)
133 new_total = child->children_hit;
134 else
135 new_total = total_samples;
136
137 ret += __callchain__fprintf_graph(fp, &child->rb_root, new_total,
138 depth + 1,
139 new_depth_mask | (1 << depth),
140 left_margin);
141 node = next;
142 if (++entries_printed == callchain_param.print_limit)
143 break;
144 }
145
146 if (callchain_param.mode == CHAIN_GRAPH_REL &&
147 remaining && remaining != total_samples) {
148
149 if (!rem_sq_bracket)
150 return ret;
151
152 new_depth_mask &= ~(1 << (depth - 1));
153 ret += ipchain__fprintf_graph(fp, &rem_hits, depth,
154 new_depth_mask, 0, total_samples,
155 remaining, left_margin);
156 }
157
158 return ret;
159}
160
161static size_t callchain__fprintf_graph(FILE *fp, struct rb_root *root,
162 u64 total_samples, int left_margin)
163{
164 struct callchain_node *cnode;
165 struct callchain_list *chain;
166 u32 entries_printed = 0;
167 bool printed = false;
168 struct rb_node *node;
169 int i = 0;
170 int ret = 0;
171
172 /*
173 * If have one single callchain root, don't bother printing
174 * its percentage (100 % in fractal mode and the same percentage
175 * than the hist in graph mode). This also avoid one level of column.
176 */
177 node = rb_first(root);
178 if (node && !rb_next(node)) {
179 cnode = rb_entry(node, struct callchain_node, rb_node);
180 list_for_each_entry(chain, &cnode->val, list) {
181 /*
182 * If we sort by symbol, the first entry is the same than
183 * the symbol. No need to print it otherwise it appears as
184 * displayed twice.
185 */
186 if (!i++ && sort__first_dimension == SORT_SYM)
187 continue;
188 if (!printed) {
189 ret += callchain__fprintf_left_margin(fp, left_margin);
190 ret += fprintf(fp, "|\n");
191 ret += callchain__fprintf_left_margin(fp, left_margin);
192 ret += fprintf(fp, "---");
193 left_margin += 3;
194 printed = true;
195 } else
196 ret += callchain__fprintf_left_margin(fp, left_margin);
197
198 if (chain->ms.sym)
199 ret += fprintf(fp, " %s\n", chain->ms.sym->name);
200 else
201 ret += fprintf(fp, " %p\n", (void *)(long)chain->ip);
202
203 if (++entries_printed == callchain_param.print_limit)
204 break;
205 }
206 root = &cnode->rb_root;
207 }
208
209 ret += __callchain__fprintf_graph(fp, root, total_samples,
210 1, 1, left_margin);
211 ret += fprintf(fp, "\n");
212
213 return ret;
214}
215
216static size_t __callchain__fprintf_flat(FILE *fp, struct callchain_node *node,
217 u64 total_samples)
218{
219 struct callchain_list *chain;
220 size_t ret = 0;
221
222 if (!node)
223 return 0;
224
225 ret += __callchain__fprintf_flat(fp, node->parent, total_samples);
226
227
228 list_for_each_entry(chain, &node->val, list) {
229 if (chain->ip >= PERF_CONTEXT_MAX)
230 continue;
231 if (chain->ms.sym)
232 ret += fprintf(fp, " %s\n", chain->ms.sym->name);
233 else
234 ret += fprintf(fp, " %p\n",
235 (void *)(long)chain->ip);
236 }
237
238 return ret;
239}
240
241static size_t callchain__fprintf_flat(FILE *fp, struct rb_root *tree,
242 u64 total_samples)
243{
244 size_t ret = 0;
245 u32 entries_printed = 0;
246 struct callchain_node *chain;
247 struct rb_node *rb_node = rb_first(tree);
248
249 while (rb_node) {
250 double percent;
251
252 chain = rb_entry(rb_node, struct callchain_node, rb_node);
253 percent = chain->hit * 100.0 / total_samples;
254
255 ret = percent_color_fprintf(fp, " %6.2f%%\n", percent);
256 ret += __callchain__fprintf_flat(fp, chain, total_samples);
257 ret += fprintf(fp, "\n");
258 if (++entries_printed == callchain_param.print_limit)
259 break;
260
261 rb_node = rb_next(rb_node);
262 }
263
264 return ret;
265}
266
267static size_t hist_entry_callchain__fprintf(struct hist_entry *he,
268 u64 total_samples, int left_margin,
269 FILE *fp)
270{
271 switch (callchain_param.mode) {
272 case CHAIN_GRAPH_REL:
273 return callchain__fprintf_graph(fp, &he->sorted_chain, he->stat.period,
274 left_margin);
275 break;
276 case CHAIN_GRAPH_ABS:
277 return callchain__fprintf_graph(fp, &he->sorted_chain, total_samples,
278 left_margin);
279 break;
280 case CHAIN_FLAT:
281 return callchain__fprintf_flat(fp, &he->sorted_chain, total_samples);
282 break;
283 case CHAIN_NONE:
284 break;
285 default:
286 pr_err("Bad callchain mode\n");
287 }
288
289 return 0;
290}
291
292static size_t hist_entry__callchain_fprintf(struct hist_entry *he,
293 struct hists *hists,
294 FILE *fp)
295{
296 int left_margin = 0;
297 u64 total_period = hists->stats.total_period;
298
299 if (sort__first_dimension == SORT_COMM) {
300 struct sort_entry *se = list_first_entry(&hist_entry__sort_list,
301 typeof(*se), list);
302 left_margin = hists__col_len(hists, se->se_width_idx);
303 left_margin -= thread__comm_len(he->thread);
304 }
305
306 return hist_entry_callchain__fprintf(he, total_period, left_margin, fp);
307}
308
309static int hist_entry__period_snprintf(struct perf_hpp *hpp,
310 struct hist_entry *he)
311{
312 const char *sep = symbol_conf.field_sep;
313 struct perf_hpp_fmt *fmt;
314 char *start = hpp->buf;
315 int ret;
316 bool first = true;
317
318 if (symbol_conf.exclude_other && !he->parent)
319 return 0;
320
321 perf_hpp__for_each_format(fmt) {
322 /*
323 * If there's no field_sep, we still need
324 * to display initial ' '.
325 */
326 if (!sep || !first) {
327 ret = scnprintf(hpp->buf, hpp->size, "%s", sep ?: " ");
328 advance_hpp(hpp, ret);
329 } else
330 first = false;
331
332 if (perf_hpp__use_color() && fmt->color)
333 ret = fmt->color(fmt, hpp, he);
334 else
335 ret = fmt->entry(fmt, hpp, he);
336
337 advance_hpp(hpp, ret);
338 }
339
340 return hpp->buf - start;
341}
342
343static int hist_entry__fprintf(struct hist_entry *he, size_t size,
344 struct hists *hists,
345 char *bf, size_t bfsz, FILE *fp)
346{
347 int ret;
348 struct perf_hpp hpp = {
349 .buf = bf,
350 .size = size,
351 };
352
353 if (size == 0 || size > bfsz)
354 size = hpp.size = bfsz;
355
356 ret = hist_entry__period_snprintf(&hpp, he);
357 hist_entry__sort_snprintf(he, bf + ret, size - ret, hists);
358
359 ret = fprintf(fp, "%s\n", bf);
360
361 if (symbol_conf.use_callchain)
362 ret += hist_entry__callchain_fprintf(he, hists, fp);
363
364 return ret;
365}
366
367size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
368 int max_cols, float min_pcnt, FILE *fp)
369{
370 struct perf_hpp_fmt *fmt;
371 struct sort_entry *se;
372 struct rb_node *nd;
373 size_t ret = 0;
374 unsigned int width;
375 const char *sep = symbol_conf.field_sep;
376 const char *col_width = symbol_conf.col_width_list_str;
377 int nr_rows = 0;
378 char bf[96];
379 struct perf_hpp dummy_hpp = {
380 .buf = bf,
381 .size = sizeof(bf),
382 };
383 bool first = true;
384 size_t linesz;
385 char *line = NULL;
386
387 init_rem_hits();
388
389 if (!show_header)
390 goto print_entries;
391
392 fprintf(fp, "# ");
393
394 perf_hpp__for_each_format(fmt) {
395 if (!first)
396 fprintf(fp, "%s", sep ?: " ");
397 else
398 first = false;
399
400 fmt->header(fmt, &dummy_hpp, hists_to_evsel(hists));
401 fprintf(fp, "%s", bf);
402 }
403
404 list_for_each_entry(se, &hist_entry__sort_list, list) {
405 if (se->elide)
406 continue;
407 if (sep) {
408 fprintf(fp, "%c%s", *sep, se->se_header);
409 continue;
410 }
411 width = strlen(se->se_header);
412 if (symbol_conf.col_width_list_str) {
413 if (col_width) {
414 hists__set_col_len(hists, se->se_width_idx,
415 atoi(col_width));
416 col_width = strchr(col_width, ',');
417 if (col_width)
418 ++col_width;
419 }
420 }
421 if (!hists__new_col_len(hists, se->se_width_idx, width))
422 width = hists__col_len(hists, se->se_width_idx);
423 fprintf(fp, " %*s", width, se->se_header);
424 }
425
426 fprintf(fp, "\n");
427 if (max_rows && ++nr_rows >= max_rows)
428 goto out;
429
430 if (sep)
431 goto print_entries;
432
433 first = true;
434
435 fprintf(fp, "# ");
436
437 perf_hpp__for_each_format(fmt) {
438 unsigned int i;
439
440 if (!first)
441 fprintf(fp, "%s", sep ?: " ");
442 else
443 first = false;
444
445 width = fmt->width(fmt, &dummy_hpp, hists_to_evsel(hists));
446 for (i = 0; i < width; i++)
447 fprintf(fp, ".");
448 }
449
450 list_for_each_entry(se, &hist_entry__sort_list, list) {
451 unsigned int i;
452
453 if (se->elide)
454 continue;
455
456 fprintf(fp, " ");
457 width = hists__col_len(hists, se->se_width_idx);
458 if (width == 0)
459 width = strlen(se->se_header);
460 for (i = 0; i < width; i++)
461 fprintf(fp, ".");
462 }
463
464 fprintf(fp, "\n");
465 if (max_rows && ++nr_rows >= max_rows)
466 goto out;
467
468 fprintf(fp, "#\n");
469 if (max_rows && ++nr_rows >= max_rows)
470 goto out;
471
472print_entries:
473 linesz = hists__sort_list_width(hists) + 3 + 1;
474 linesz += perf_hpp__color_overhead();
475 line = malloc(linesz);
476 if (line == NULL) {
477 ret = -1;
478 goto out;
479 }
480
481 for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {
482 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
483 float percent = h->stat.period * 100.0 /
484 hists->stats.total_period;
485
486 if (h->filtered)
487 continue;
488
489 if (percent < min_pcnt)
490 continue;
491
492 ret += hist_entry__fprintf(h, max_cols, hists, line, linesz, fp);
493
494 if (max_rows && ++nr_rows >= max_rows)
495 break;
496
497 if (h->ms.map == NULL && verbose > 1) {
498 __map_groups__fprintf_maps(&h->thread->mg,
499 MAP__FUNCTION, verbose, fp);
500 fprintf(fp, "%.10s end\n", graph_dotted_line);
501 }
502 }
503
504 free(line);
505out:
506 zfree(&rem_sq_bracket);
507
508 return ret;
509}
510
511size_t events_stats__fprintf(struct events_stats *stats, FILE *fp)
512{
513 int i;
514 size_t ret = 0;
515
516 for (i = 0; i < PERF_RECORD_HEADER_MAX; ++i) {
517 const char *name;
518
519 if (stats->nr_events[i] == 0)
520 continue;
521
522 name = perf_event__name(i);
523 if (!strcmp(name, "UNKNOWN"))
524 continue;
525
526 ret += fprintf(fp, "%16s events: %10d\n", name,
527 stats->nr_events[i]);
528 }
529
530 return ret;
531}