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/maps.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 "../../util/block-info.h"
19 #include <linux/ctype.h>
20 #include <linux/zalloc.h>
21
22 static size_t callchain__fprintf_left_margin(FILE *fp, int left_margin)
23 {
24 int i;
25 int ret = fprintf(fp, " ");
26
27 for (i = 0; i < left_margin; i++)
28 ret += fprintf(fp, " ");
29
30 return ret;
31 }
32
33 static size_t ipchain__fprintf_graph_line(FILE *fp, int depth, int depth_mask,
34 int left_margin)
35 {
36 int i;
37 size_t ret = callchain__fprintf_left_margin(fp, left_margin);
38
39 for (i = 0; i < depth; i++)
40 if (depth_mask & (1 << i))
41 ret += fprintf(fp, "| ");
42 else
43 ret += fprintf(fp, " ");
44
45 ret += fprintf(fp, "\n");
46
47 return ret;
48 }
49
50 static size_t ipchain__fprintf_graph(FILE *fp, struct callchain_node *node,
51 struct callchain_list *chain,
52 int depth, int depth_mask, int period,
53 u64 total_samples, int left_margin)
54 {
55 int i;
56 size_t ret = 0;
57 char bf[1024], *alloc_str = NULL;
58 char buf[64];
59 const char *str;
60
61 ret += callchain__fprintf_left_margin(fp, left_margin);
62 for (i = 0; i < depth; i++) {
63 if (depth_mask & (1 << i))
64 ret += fprintf(fp, "|");
65 else
66 ret += fprintf(fp, " ");
67 if (!period && i == depth - 1) {
68 ret += fprintf(fp, "--");
69 ret += callchain_node__fprintf_value(node, fp, total_samples);
70 ret += fprintf(fp, "--");
71 } else
72 ret += fprintf(fp, "%s", " ");
73 }
74
75 str = callchain_list__sym_name(chain, bf, sizeof(bf), false);
76
77 if (symbol_conf.show_branchflag_count) {
78 callchain_list_counts__printf_value(chain, NULL,
79 buf, sizeof(buf));
80
81 if (asprintf(&alloc_str, "%s%s", str, buf) < 0)
82 str = "Not enough memory!";
83 else
84 str = alloc_str;
85 }
86
87 fputs(str, fp);
88 fputc('\n', fp);
89 free(alloc_str);
90
91 return ret;
92 }
93
94 static struct symbol *rem_sq_bracket;
95 static struct callchain_list rem_hits;
96
97 static void init_rem_hits(void)
98 {
99 rem_sq_bracket = malloc(sizeof(*rem_sq_bracket) + 6);
100 if (!rem_sq_bracket) {
101 fprintf(stderr, "Not enough memory to display remaining hits\n");
102 return;
103 }
104
105 strcpy(rem_sq_bracket->name, "[...]");
106 rem_hits.ms.sym = rem_sq_bracket;
107 }
108
109 static size_t __callchain__fprintf_graph(FILE *fp, struct rb_root *root,
110 u64 total_samples, int depth,
111 int depth_mask, int left_margin)
112 {
113 struct rb_node *node, *next;
114 struct callchain_node *child = NULL;
115 struct callchain_list *chain;
116 int new_depth_mask = depth_mask;
117 u64 remaining;
118 size_t ret = 0;
119 int i;
120 uint entries_printed = 0;
121 int cumul_count = 0;
122
123 remaining = total_samples;
124
125 node = rb_first(root);
126 while (node) {
127 u64 new_total;
128 u64 cumul;
129
130 child = rb_entry(node, struct callchain_node, rb_node);
131 cumul = callchain_cumul_hits(child);
132 remaining -= cumul;
133 cumul_count += callchain_cumul_counts(child);
134
135 /*
136 * The depth mask manages the output of pipes that show
137 * the depth. We don't want to keep the pipes of the current
138 * level for the last child of this depth.
139 * Except if we have remaining filtered hits. They will
140 * supersede the last child
141 */
142 next = rb_next(node);
143 if (!next && (callchain_param.mode != CHAIN_GRAPH_REL || !remaining))
144 new_depth_mask &= ~(1 << (depth - 1));
145
146 /*
147 * But we keep the older depth mask for the line separator
148 * to keep the level link until we reach the last child
149 */
150 ret += ipchain__fprintf_graph_line(fp, depth, depth_mask,
151 left_margin);
152 i = 0;
153 list_for_each_entry(chain, &child->val, list) {
154 ret += ipchain__fprintf_graph(fp, child, chain, depth,
155 new_depth_mask, i++,
156 total_samples,
157 left_margin);
158 }
159
160 if (callchain_param.mode == CHAIN_GRAPH_REL)
161 new_total = child->children_hit;
162 else
163 new_total = total_samples;
164
165 ret += __callchain__fprintf_graph(fp, &child->rb_root, new_total,
166 depth + 1,
167 new_depth_mask | (1 << depth),
168 left_margin);
169 node = next;
170 if (++entries_printed == callchain_param.print_limit)
171 break;
172 }
173
174 if (callchain_param.mode == CHAIN_GRAPH_REL &&
175 remaining && remaining != total_samples) {
176 struct callchain_node rem_node = {
177 .hit = remaining,
178 };
179
180 if (!rem_sq_bracket)
181 return ret;
182
183 if (callchain_param.value == CCVAL_COUNT && child && child->parent) {
184 rem_node.count = child->parent->children_count - cumul_count;
185 if (rem_node.count <= 0)
186 return ret;
187 }
188
189 new_depth_mask &= ~(1 << (depth - 1));
190 ret += ipchain__fprintf_graph(fp, &rem_node, &rem_hits, depth,
191 new_depth_mask, 0, total_samples,
192 left_margin);
193 }
194
195 return ret;
196 }
197
198 /*
199 * If have one single callchain root, don't bother printing
200 * its percentage (100 % in fractal mode and the same percentage
201 * than the hist in graph mode). This also avoid one level of column.
202 *
203 * However when percent-limit applied, it's possible that single callchain
204 * node have different (non-100% in fractal mode) percentage.
205 */
206 static bool need_percent_display(struct rb_node *node, u64 parent_samples)
207 {
208 struct callchain_node *cnode;
209
210 if (rb_next(node))
211 return true;
212
213 cnode = rb_entry(node, struct callchain_node, rb_node);
214 return callchain_cumul_hits(cnode) != parent_samples;
215 }
216
217 static size_t callchain__fprintf_graph(FILE *fp, struct rb_root *root,
218 u64 total_samples, u64 parent_samples,
219 int left_margin)
220 {
221 struct callchain_node *cnode;
222 struct callchain_list *chain;
223 u32 entries_printed = 0;
224 bool printed = false;
225 struct rb_node *node;
226 int i = 0;
227 int ret = 0;
228 char bf[1024];
229
230 node = rb_first(root);
231 if (node && !need_percent_display(node, parent_samples)) {
232 cnode = rb_entry(node, struct callchain_node, rb_node);
233 list_for_each_entry(chain, &cnode->val, list) {
234 /*
235 * If we sort by symbol, the first entry is the same than
236 * the symbol. No need to print it otherwise it appears as
237 * displayed twice.
238 */
239 if (!i++ && field_order == NULL &&
240 sort_order && strstarts(sort_order, "sym"))
241 continue;
242
243 if (!printed) {
244 ret += callchain__fprintf_left_margin(fp, left_margin);
245 ret += fprintf(fp, "|\n");
246 ret += callchain__fprintf_left_margin(fp, left_margin);
247 ret += fprintf(fp, "---");
248 left_margin += 3;
249 printed = true;
250 } else
251 ret += callchain__fprintf_left_margin(fp, left_margin);
252
253 ret += fprintf(fp, "%s",
254 callchain_list__sym_name(chain, bf,
255 sizeof(bf),
256 false));
257
258 if (symbol_conf.show_branchflag_count)
259 ret += callchain_list_counts__printf_value(
260 chain, fp, NULL, 0);
261 ret += fprintf(fp, "\n");
262
263 if (++entries_printed == callchain_param.print_limit)
264 break;
265 }
266 root = &cnode->rb_root;
267 }
268
269 if (callchain_param.mode == CHAIN_GRAPH_REL)
270 total_samples = parent_samples;
271
272 ret += __callchain__fprintf_graph(fp, root, total_samples,
273 1, 1, left_margin);
274 if (ret) {
275 /* do not add a blank line if it printed nothing */
276 ret += fprintf(fp, "\n");
277 }
278
279 return ret;
280 }
281
282 static size_t __callchain__fprintf_flat(FILE *fp, struct callchain_node *node,
283 u64 total_samples)
284 {
285 struct callchain_list *chain;
286 size_t ret = 0;
287 char bf[1024];
288
289 if (!node)
290 return 0;
291
292 ret += __callchain__fprintf_flat(fp, node->parent, total_samples);
293
294
295 list_for_each_entry(chain, &node->val, list) {
296 if (chain->ip >= PERF_CONTEXT_MAX)
297 continue;
298 ret += fprintf(fp, " %s\n", callchain_list__sym_name(chain,
299 bf, sizeof(bf), false));
300 }
301
302 return ret;
303 }
304
305 static size_t callchain__fprintf_flat(FILE *fp, struct rb_root *tree,
306 u64 total_samples)
307 {
308 size_t ret = 0;
309 u32 entries_printed = 0;
310 struct callchain_node *chain;
311 struct rb_node *rb_node = rb_first(tree);
312
313 while (rb_node) {
314 chain = rb_entry(rb_node, struct callchain_node, rb_node);
315
316 ret += fprintf(fp, " ");
317 ret += callchain_node__fprintf_value(chain, fp, total_samples);
318 ret += fprintf(fp, "\n");
319 ret += __callchain__fprintf_flat(fp, chain, total_samples);
320 ret += fprintf(fp, "\n");
321 if (++entries_printed == callchain_param.print_limit)
322 break;
323
324 rb_node = rb_next(rb_node);
325 }
326
327 return ret;
328 }
329
330 static size_t __callchain__fprintf_folded(FILE *fp, struct callchain_node *node)
331 {
332 const char *sep = symbol_conf.field_sep ?: ";";
333 struct callchain_list *chain;
334 size_t ret = 0;
335 char bf[1024];
336 bool first;
337
338 if (!node)
339 return 0;
340
341 ret += __callchain__fprintf_folded(fp, node->parent);
342
343 first = (ret == 0);
344 list_for_each_entry(chain, &node->val, list) {
345 if (chain->ip >= PERF_CONTEXT_MAX)
346 continue;
347 ret += fprintf(fp, "%s%s", first ? "" : sep,
348 callchain_list__sym_name(chain,
349 bf, sizeof(bf), false));
350 first = false;
351 }
352
353 return ret;
354 }
355
356 static size_t callchain__fprintf_folded(FILE *fp, struct rb_root *tree,
357 u64 total_samples)
358 {
359 size_t ret = 0;
360 u32 entries_printed = 0;
361 struct callchain_node *chain;
362 struct rb_node *rb_node = rb_first(tree);
363
364 while (rb_node) {
365
366 chain = rb_entry(rb_node, struct callchain_node, rb_node);
367
368 ret += callchain_node__fprintf_value(chain, fp, total_samples);
369 ret += fprintf(fp, " ");
370 ret += __callchain__fprintf_folded(fp, chain);
371 ret += fprintf(fp, "\n");
372 if (++entries_printed == callchain_param.print_limit)
373 break;
374
375 rb_node = rb_next(rb_node);
376 }
377
378 return ret;
379 }
380
381 static size_t hist_entry_callchain__fprintf(struct hist_entry *he,
382 u64 total_samples, int left_margin,
383 FILE *fp)
384 {
385 u64 parent_samples = he->stat.period;
386
387 if (symbol_conf.cumulate_callchain)
388 parent_samples = he->stat_acc->period;
389
390 switch (callchain_param.mode) {
391 case CHAIN_GRAPH_REL:
392 return callchain__fprintf_graph(fp, &he->sorted_chain, total_samples,
393 parent_samples, left_margin);
394 break;
395 case CHAIN_GRAPH_ABS:
396 return callchain__fprintf_graph(fp, &he->sorted_chain, total_samples,
397 parent_samples, left_margin);
398 break;
399 case CHAIN_FLAT:
400 return callchain__fprintf_flat(fp, &he->sorted_chain, total_samples);
401 break;
402 case CHAIN_FOLDED:
403 return callchain__fprintf_folded(fp, &he->sorted_chain, total_samples);
404 break;
405 case CHAIN_NONE:
406 break;
407 default:
408 pr_err("Bad callchain mode\n");
409 }
410
411 return 0;
412 }
413
414 int __hist_entry__snprintf(struct hist_entry *he, struct perf_hpp *hpp,
415 struct perf_hpp_list *hpp_list)
416 {
417 const char *sep = symbol_conf.field_sep;
418 struct perf_hpp_fmt *fmt;
419 char *start = hpp->buf;
420 int ret;
421 bool first = true;
422
423 if (symbol_conf.exclude_other && !he->parent)
424 return 0;
425
426 perf_hpp_list__for_each_format(hpp_list, fmt) {
427 if (perf_hpp__should_skip(fmt, he->hists))
428 continue;
429
430 /*
431 * If there's no field_sep, we still need
432 * to display initial ' '.
433 */
434 if (!sep || !first) {
435 ret = scnprintf(hpp->buf, hpp->size, "%s", sep ?: " ");
436 advance_hpp(hpp, ret);
437 } else
438 first = false;
439
440 if (perf_hpp__use_color() && fmt->color)
441 ret = fmt->color(fmt, hpp, he);
442 else
443 ret = fmt->entry(fmt, hpp, he);
444
445 ret = hist_entry__snprintf_alignment(he, hpp, fmt, ret);
446 advance_hpp(hpp, ret);
447 }
448
449 return hpp->buf - start;
450 }
451
452 static int hist_entry__snprintf(struct hist_entry *he, struct perf_hpp *hpp)
453 {
454 return __hist_entry__snprintf(he, hpp, he->hists->hpp_list);
455 }
456
457 static int hist_entry__hierarchy_fprintf(struct hist_entry *he,
458 struct perf_hpp *hpp,
459 struct hists *hists,
460 FILE *fp)
461 {
462 const char *sep = symbol_conf.field_sep;
463 struct perf_hpp_fmt *fmt;
464 struct perf_hpp_list_node *fmt_node;
465 char *buf = hpp->buf;
466 size_t size = hpp->size;
467 int ret, printed = 0;
468 bool first = true;
469
470 if (symbol_conf.exclude_other && !he->parent)
471 return 0;
472
473 ret = scnprintf(hpp->buf, hpp->size, "%*s", he->depth * HIERARCHY_INDENT, "");
474 advance_hpp(hpp, ret);
475
476 /* the first hpp_list_node is for overhead columns */
477 fmt_node = list_first_entry(&hists->hpp_formats,
478 struct perf_hpp_list_node, list);
479 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
480 /*
481 * If there's no field_sep, we still need
482 * to display initial ' '.
483 */
484 if (!sep || !first) {
485 ret = scnprintf(hpp->buf, hpp->size, "%s", sep ?: " ");
486 advance_hpp(hpp, ret);
487 } else
488 first = false;
489
490 if (perf_hpp__use_color() && fmt->color)
491 ret = fmt->color(fmt, hpp, he);
492 else
493 ret = fmt->entry(fmt, hpp, he);
494
495 ret = hist_entry__snprintf_alignment(he, hpp, fmt, ret);
496 advance_hpp(hpp, ret);
497 }
498
499 if (!sep)
500 ret = scnprintf(hpp->buf, hpp->size, "%*s",
501 (hists->nr_hpp_node - 2) * HIERARCHY_INDENT, "");
502 advance_hpp(hpp, ret);
503
504 printed += fprintf(fp, "%s", buf);
505
506 perf_hpp_list__for_each_format(he->hpp_list, fmt) {
507 hpp->buf = buf;
508 hpp->size = size;
509
510 /*
511 * No need to call hist_entry__snprintf_alignment() since this
512 * fmt is always the last column in the hierarchy mode.
513 */
514 if (perf_hpp__use_color() && fmt->color)
515 fmt->color(fmt, hpp, he);
516 else
517 fmt->entry(fmt, hpp, he);
518
519 /*
520 * dynamic entries are right-aligned but we want left-aligned
521 * in the hierarchy mode
522 */
523 printed += fprintf(fp, "%s%s", sep ?: " ", skip_spaces(buf));
524 }
525 printed += putc('\n', fp);
526
527 if (he->leaf && hist_entry__has_callchains(he) && symbol_conf.use_callchain) {
528 u64 total = hists__total_period(hists);
529
530 printed += hist_entry_callchain__fprintf(he, total, 0, fp);
531 goto out;
532 }
533
534 out:
535 return printed;
536 }
537
538 static int hist_entry__block_fprintf(struct hist_entry *he,
539 char *bf, size_t size,
540 FILE *fp)
541 {
542 struct block_hist *bh = container_of(he, struct block_hist, he);
543 int ret = 0;
544
545 for (unsigned int i = 0; i < bh->block_hists.nr_entries; i++) {
546 struct perf_hpp hpp = {
547 .buf = bf,
548 .size = size,
549 .skip = false,
550 };
551
552 bh->block_idx = i;
553 hist_entry__snprintf(he, &hpp);
554
555 if (!hpp.skip)
556 ret += fprintf(fp, "%s\n", bf);
557 }
558
559 return ret;
560 }
561
562 static int hist_entry__individual_block_fprintf(struct hist_entry *he,
563 char *bf, size_t size,
564 FILE *fp)
565 {
566 int ret = 0;
567
568 struct perf_hpp hpp = {
569 .buf = bf,
570 .size = size,
571 .skip = false,
572 };
573
574 hist_entry__snprintf(he, &hpp);
575 if (!hpp.skip)
576 ret += fprintf(fp, "%s\n", bf);
577
578 return ret;
579 }
580
581 static int hist_entry__fprintf(struct hist_entry *he, size_t size,
582 char *bf, size_t bfsz, FILE *fp,
583 bool ignore_callchains)
584 {
585 int ret;
586 int callchain_ret = 0;
587 struct perf_hpp hpp = {
588 .buf = bf,
589 .size = size,
590 };
591 struct hists *hists = he->hists;
592 u64 total_period = hists->stats.total_period;
593
594 if (size == 0 || size > bfsz)
595 size = hpp.size = bfsz;
596
597 if (symbol_conf.report_hierarchy)
598 return hist_entry__hierarchy_fprintf(he, &hpp, hists, fp);
599
600 if (symbol_conf.report_block)
601 return hist_entry__block_fprintf(he, bf, size, fp);
602
603 if (symbol_conf.report_individual_block)
604 return hist_entry__individual_block_fprintf(he, bf, size, fp);
605
606 hist_entry__snprintf(he, &hpp);
607
608 ret = fprintf(fp, "%s\n", bf);
609
610 if (hist_entry__has_callchains(he) && !ignore_callchains)
611 callchain_ret = hist_entry_callchain__fprintf(he, total_period,
612 0, fp);
613
614 ret += callchain_ret;
615
616 return ret;
617 }
618
619 static int print_hierarchy_indent(const char *sep, int indent,
620 const char *line, FILE *fp)
621 {
622 int width;
623
624 if (sep != NULL || indent < 2)
625 return 0;
626
627 width = (indent - 2) * HIERARCHY_INDENT;
628
629 return fprintf(fp, "%-*.*s", width, width, line);
630 }
631
632 static int hists__fprintf_hierarchy_headers(struct hists *hists,
633 struct perf_hpp *hpp, FILE *fp)
634 {
635 bool first_node, first_col;
636 int indent;
637 int depth;
638 unsigned width = 0;
639 unsigned header_width = 0;
640 struct perf_hpp_fmt *fmt;
641 struct perf_hpp_list_node *fmt_node;
642 const char *sep = symbol_conf.field_sep;
643
644 indent = hists->nr_hpp_node;
645
646 /* preserve max indent depth for column headers */
647 print_hierarchy_indent(sep, indent, " ", fp);
648
649 /* the first hpp_list_node is for overhead columns */
650 fmt_node = list_first_entry(&hists->hpp_formats,
651 struct perf_hpp_list_node, list);
652
653 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
654 fmt->header(fmt, hpp, hists, 0, NULL);
655 fprintf(fp, "%s%s", hpp->buf, sep ?: " ");
656 }
657
658 /* combine sort headers with ' / ' */
659 first_node = true;
660 list_for_each_entry_continue(fmt_node, &hists->hpp_formats, list) {
661 if (!first_node)
662 header_width += fprintf(fp, " / ");
663 first_node = false;
664
665 first_col = true;
666 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
667 if (perf_hpp__should_skip(fmt, hists))
668 continue;
669
670 if (!first_col)
671 header_width += fprintf(fp, "+");
672 first_col = false;
673
674 fmt->header(fmt, hpp, hists, 0, NULL);
675
676 header_width += fprintf(fp, "%s", strim(hpp->buf));
677 }
678 }
679
680 fprintf(fp, "\n# ");
681
682 /* preserve max indent depth for initial dots */
683 print_hierarchy_indent(sep, indent, dots, fp);
684
685 /* the first hpp_list_node is for overhead columns */
686 fmt_node = list_first_entry(&hists->hpp_formats,
687 struct perf_hpp_list_node, list);
688
689 first_col = true;
690 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
691 if (!first_col)
692 fprintf(fp, "%s", sep ?: "..");
693 first_col = false;
694
695 width = fmt->width(fmt, hpp, hists);
696 fprintf(fp, "%.*s", width, dots);
697 }
698
699 depth = 0;
700 list_for_each_entry_continue(fmt_node, &hists->hpp_formats, list) {
701 first_col = true;
702 width = depth * HIERARCHY_INDENT;
703
704 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
705 if (perf_hpp__should_skip(fmt, hists))
706 continue;
707
708 if (!first_col)
709 width++; /* for '+' sign between column header */
710 first_col = false;
711
712 width += fmt->width(fmt, hpp, hists);
713 }
714
715 if (width > header_width)
716 header_width = width;
717
718 depth++;
719 }
720
721 fprintf(fp, "%s%-.*s", sep ?: " ", header_width, dots);
722
723 fprintf(fp, "\n#\n");
724
725 return 2;
726 }
727
728 static void fprintf_line(struct hists *hists, struct perf_hpp *hpp,
729 int line, FILE *fp)
730 {
731 struct perf_hpp_fmt *fmt;
732 const char *sep = symbol_conf.field_sep;
733 bool first = true;
734 int span = 0;
735
736 hists__for_each_format(hists, fmt) {
737 if (perf_hpp__should_skip(fmt, hists))
738 continue;
739
740 if (!first && !span)
741 fprintf(fp, "%s", sep ?: " ");
742 else
743 first = false;
744
745 fmt->header(fmt, hpp, hists, line, &span);
746
747 if (!span)
748 fprintf(fp, "%s", hpp->buf);
749 }
750 }
751
752 static int
753 hists__fprintf_standard_headers(struct hists *hists,
754 struct perf_hpp *hpp,
755 FILE *fp)
756 {
757 struct perf_hpp_list *hpp_list = hists->hpp_list;
758 struct perf_hpp_fmt *fmt;
759 unsigned int width;
760 const char *sep = symbol_conf.field_sep;
761 bool first = true;
762 int line;
763
764 for (line = 0; line < hpp_list->nr_header_lines; line++) {
765 /* first # is displayed one level up */
766 if (line)
767 fprintf(fp, "# ");
768 fprintf_line(hists, hpp, line, fp);
769 fprintf(fp, "\n");
770 }
771
772 if (sep)
773 return hpp_list->nr_header_lines;
774
775 first = true;
776
777 fprintf(fp, "# ");
778
779 hists__for_each_format(hists, fmt) {
780 unsigned int i;
781
782 if (perf_hpp__should_skip(fmt, hists))
783 continue;
784
785 if (!first)
786 fprintf(fp, "%s", sep ?: " ");
787 else
788 first = false;
789
790 width = fmt->width(fmt, hpp, hists);
791 for (i = 0; i < width; i++)
792 fprintf(fp, ".");
793 }
794
795 fprintf(fp, "\n");
796 fprintf(fp, "#\n");
797 return hpp_list->nr_header_lines + 2;
798 }
799
800 int hists__fprintf_headers(struct hists *hists, FILE *fp)
801 {
802 char bf[1024];
803 struct perf_hpp dummy_hpp = {
804 .buf = bf,
805 .size = sizeof(bf),
806 };
807
808 fprintf(fp, "# ");
809
810 if (symbol_conf.report_hierarchy)
811 return hists__fprintf_hierarchy_headers(hists, &dummy_hpp, fp);
812 else
813 return hists__fprintf_standard_headers(hists, &dummy_hpp, fp);
814
815 }
816
817 size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
818 int max_cols, float min_pcnt, FILE *fp,
819 bool ignore_callchains)
820 {
821 struct rb_node *nd;
822 size_t ret = 0;
823 const char *sep = symbol_conf.field_sep;
824 int nr_rows = 0;
825 size_t linesz;
826 char *line = NULL;
827 unsigned indent;
828
829 init_rem_hits();
830
831 hists__reset_column_width(hists);
832
833 if (symbol_conf.col_width_list_str)
834 perf_hpp__set_user_width(symbol_conf.col_width_list_str);
835
836 if (show_header)
837 nr_rows += hists__fprintf_headers(hists, fp);
838
839 if (max_rows && nr_rows >= max_rows)
840 goto out;
841
842 linesz = hists__sort_list_width(hists) + 3 + 1;
843 linesz += perf_hpp__color_overhead();
844 line = malloc(linesz);
845 if (line == NULL) {
846 ret = -1;
847 goto out;
848 }
849
850 indent = hists__overhead_width(hists) + 4;
851
852 for (nd = rb_first_cached(&hists->entries); nd;
853 nd = __rb_hierarchy_next(nd, HMD_FORCE_CHILD)) {
854 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
855 float percent;
856
857 if (h->filtered)
858 continue;
859
860 if (symbol_conf.report_individual_block)
861 percent = block_info__total_cycles_percent(h);
862 else
863 percent = hist_entry__get_percent_limit(h);
864
865 if (percent < min_pcnt)
866 continue;
867
868 ret += hist_entry__fprintf(h, max_cols, line, linesz, fp, ignore_callchains);
869
870 if (max_rows && ++nr_rows >= max_rows)
871 break;
872
873 /*
874 * If all children are filtered out or percent-limited,
875 * display "no entry >= x.xx%" message.
876 */
877 if (!h->leaf && !hist_entry__has_hierarchy_children(h, min_pcnt)) {
878 int depth = hists->nr_hpp_node + h->depth + 1;
879
880 print_hierarchy_indent(sep, depth, " ", fp);
881 fprintf(fp, "%*sno entry >= %.2f%%\n", indent, "", min_pcnt);
882
883 if (max_rows && ++nr_rows >= max_rows)
884 break;
885 }
886
887 if (h->ms.map == NULL && verbose > 1) {
888 maps__fprintf(thread__maps(h->thread), fp);
889 fprintf(fp, "%.10s end\n", graph_dotted_line);
890 }
891 }
892
893 free(line);
894 out:
895 zfree(&rem_sq_bracket);
896
897 return ret;
898 }
899
900 size_t events_stats__fprintf(struct events_stats *stats, FILE *fp)
901 {
902 int i;
903 size_t ret = 0;
904 u32 total = stats->nr_events[0];
905
906 for (i = 0; i < PERF_RECORD_HEADER_MAX; ++i) {
907 const char *name;
908
909 name = perf_event__name(i);
910 if (!strcmp(name, "UNKNOWN"))
911 continue;
912 if (symbol_conf.skip_empty && !stats->nr_events[i])
913 continue;
914
915 if (i && total) {
916 ret += fprintf(fp, "%16s events: %10d (%4.1f%%)\n",
917 name, stats->nr_events[i],
918 100.0 * stats->nr_events[i] / total);
919 } else {
920 ret += fprintf(fp, "%16s events: %10d\n",
921 name, stats->nr_events[i]);
922 }
923 }
924
925 return ret;
926 }
927
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