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1#include "annotate.h"
2#include "util.h"
3#include "build-id.h"
4#include "hist.h"
5#include "session.h"
6#include "sort.h"
7#include <math.h>
8
9static bool hists__filter_entry_by_dso(struct hists *hists,
10 struct hist_entry *he);
11static bool hists__filter_entry_by_thread(struct hists *hists,
12 struct hist_entry *he);
13static bool hists__filter_entry_by_symbol(struct hists *hists,
14 struct hist_entry *he);
15
16enum hist_filter {
17 HIST_FILTER__DSO,
18 HIST_FILTER__THREAD,
19 HIST_FILTER__PARENT,
20 HIST_FILTER__SYMBOL,
21};
22
23struct callchain_param callchain_param = {
24 .mode = CHAIN_GRAPH_REL,
25 .min_percent = 0.5,
26 .order = ORDER_CALLEE
27};
28
29u16 hists__col_len(struct hists *hists, enum hist_column col)
30{
31 return hists->col_len[col];
32}
33
34void hists__set_col_len(struct hists *hists, enum hist_column col, u16 len)
35{
36 hists->col_len[col] = len;
37}
38
39bool hists__new_col_len(struct hists *hists, enum hist_column col, u16 len)
40{
41 if (len > hists__col_len(hists, col)) {
42 hists__set_col_len(hists, col, len);
43 return true;
44 }
45 return false;
46}
47
48static void hists__reset_col_len(struct hists *hists)
49{
50 enum hist_column col;
51
52 for (col = 0; col < HISTC_NR_COLS; ++col)
53 hists__set_col_len(hists, col, 0);
54}
55
56static void hists__set_unres_dso_col_len(struct hists *hists, int dso)
57{
58 const unsigned int unresolved_col_width = BITS_PER_LONG / 4;
59
60 if (hists__col_len(hists, dso) < unresolved_col_width &&
61 !symbol_conf.col_width_list_str && !symbol_conf.field_sep &&
62 !symbol_conf.dso_list)
63 hists__set_col_len(hists, dso, unresolved_col_width);
64}
65
66static void hists__calc_col_len(struct hists *hists, struct hist_entry *h)
67{
68 const unsigned int unresolved_col_width = BITS_PER_LONG / 4;
69 u16 len;
70
71 if (h->ms.sym)
72 hists__new_col_len(hists, HISTC_SYMBOL, h->ms.sym->namelen + 4);
73 else
74 hists__set_unres_dso_col_len(hists, HISTC_DSO);
75
76 len = thread__comm_len(h->thread);
77 if (hists__new_col_len(hists, HISTC_COMM, len))
78 hists__set_col_len(hists, HISTC_THREAD, len + 6);
79
80 if (h->ms.map) {
81 len = dso__name_len(h->ms.map->dso);
82 hists__new_col_len(hists, HISTC_DSO, len);
83 }
84
85 if (h->branch_info) {
86 int symlen;
87 /*
88 * +4 accounts for '[x] ' priv level info
89 * +2 account of 0x prefix on raw addresses
90 */
91 if (h->branch_info->from.sym) {
92 symlen = (int)h->branch_info->from.sym->namelen + 4;
93 hists__new_col_len(hists, HISTC_SYMBOL_FROM, symlen);
94
95 symlen = dso__name_len(h->branch_info->from.map->dso);
96 hists__new_col_len(hists, HISTC_DSO_FROM, symlen);
97 } else {
98 symlen = unresolved_col_width + 4 + 2;
99 hists__new_col_len(hists, HISTC_SYMBOL_FROM, symlen);
100 hists__set_unres_dso_col_len(hists, HISTC_DSO_FROM);
101 }
102
103 if (h->branch_info->to.sym) {
104 symlen = (int)h->branch_info->to.sym->namelen + 4;
105 hists__new_col_len(hists, HISTC_SYMBOL_TO, symlen);
106
107 symlen = dso__name_len(h->branch_info->to.map->dso);
108 hists__new_col_len(hists, HISTC_DSO_TO, symlen);
109 } else {
110 symlen = unresolved_col_width + 4 + 2;
111 hists__new_col_len(hists, HISTC_SYMBOL_TO, symlen);
112 hists__set_unres_dso_col_len(hists, HISTC_DSO_TO);
113 }
114 }
115}
116
117static void hist_entry__add_cpumode_period(struct hist_entry *he,
118 unsigned int cpumode, u64 period)
119{
120 switch (cpumode) {
121 case PERF_RECORD_MISC_KERNEL:
122 he->period_sys += period;
123 break;
124 case PERF_RECORD_MISC_USER:
125 he->period_us += period;
126 break;
127 case PERF_RECORD_MISC_GUEST_KERNEL:
128 he->period_guest_sys += period;
129 break;
130 case PERF_RECORD_MISC_GUEST_USER:
131 he->period_guest_us += period;
132 break;
133 default:
134 break;
135 }
136}
137
138static void hist_entry__decay(struct hist_entry *he)
139{
140 he->period = (he->period * 7) / 8;
141 he->nr_events = (he->nr_events * 7) / 8;
142}
143
144static bool hists__decay_entry(struct hists *hists, struct hist_entry *he)
145{
146 u64 prev_period = he->period;
147
148 if (prev_period == 0)
149 return true;
150
151 hist_entry__decay(he);
152
153 if (!he->filtered)
154 hists->stats.total_period -= prev_period - he->period;
155
156 return he->period == 0;
157}
158
159static void __hists__decay_entries(struct hists *hists, bool zap_user,
160 bool zap_kernel, bool threaded)
161{
162 struct rb_node *next = rb_first(&hists->entries);
163 struct hist_entry *n;
164
165 while (next) {
166 n = rb_entry(next, struct hist_entry, rb_node);
167 next = rb_next(&n->rb_node);
168 /*
169 * We may be annotating this, for instance, so keep it here in
170 * case some it gets new samples, we'll eventually free it when
171 * the user stops browsing and it agains gets fully decayed.
172 */
173 if (((zap_user && n->level == '.') ||
174 (zap_kernel && n->level != '.') ||
175 hists__decay_entry(hists, n)) &&
176 !n->used) {
177 rb_erase(&n->rb_node, &hists->entries);
178
179 if (sort__need_collapse || threaded)
180 rb_erase(&n->rb_node_in, &hists->entries_collapsed);
181
182 hist_entry__free(n);
183 --hists->nr_entries;
184 }
185 }
186}
187
188void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel)
189{
190 return __hists__decay_entries(hists, zap_user, zap_kernel, false);
191}
192
193void hists__decay_entries_threaded(struct hists *hists,
194 bool zap_user, bool zap_kernel)
195{
196 return __hists__decay_entries(hists, zap_user, zap_kernel, true);
197}
198
199/*
200 * histogram, sorted on item, collects periods
201 */
202
203static struct hist_entry *hist_entry__new(struct hist_entry *template)
204{
205 size_t callchain_size = symbol_conf.use_callchain ? sizeof(struct callchain_root) : 0;
206 struct hist_entry *he = malloc(sizeof(*he) + callchain_size);
207
208 if (he != NULL) {
209 *he = *template;
210 he->nr_events = 1;
211 if (he->ms.map)
212 he->ms.map->referenced = true;
213 if (symbol_conf.use_callchain)
214 callchain_init(he->callchain);
215 }
216
217 return he;
218}
219
220static void hists__inc_nr_entries(struct hists *hists, struct hist_entry *h)
221{
222 if (!h->filtered) {
223 hists__calc_col_len(hists, h);
224 ++hists->nr_entries;
225 hists->stats.total_period += h->period;
226 }
227}
228
229static u8 symbol__parent_filter(const struct symbol *parent)
230{
231 if (symbol_conf.exclude_other && parent == NULL)
232 return 1 << HIST_FILTER__PARENT;
233 return 0;
234}
235
236static struct hist_entry *add_hist_entry(struct hists *hists,
237 struct hist_entry *entry,
238 struct addr_location *al,
239 u64 period)
240{
241 struct rb_node **p;
242 struct rb_node *parent = NULL;
243 struct hist_entry *he;
244 int cmp;
245
246 pthread_mutex_lock(&hists->lock);
247
248 p = &hists->entries_in->rb_node;
249
250 while (*p != NULL) {
251 parent = *p;
252 he = rb_entry(parent, struct hist_entry, rb_node_in);
253
254 cmp = hist_entry__cmp(entry, he);
255
256 if (!cmp) {
257 he->period += period;
258 ++he->nr_events;
259
260 /* If the map of an existing hist_entry has
261 * become out-of-date due to an exec() or
262 * similar, update it. Otherwise we will
263 * mis-adjust symbol addresses when computing
264 * the history counter to increment.
265 */
266 if (he->ms.map != entry->ms.map) {
267 he->ms.map = entry->ms.map;
268 if (he->ms.map)
269 he->ms.map->referenced = true;
270 }
271 goto out;
272 }
273
274 if (cmp < 0)
275 p = &(*p)->rb_left;
276 else
277 p = &(*p)->rb_right;
278 }
279
280 he = hist_entry__new(entry);
281 if (!he)
282 goto out_unlock;
283
284 rb_link_node(&he->rb_node_in, parent, p);
285 rb_insert_color(&he->rb_node_in, hists->entries_in);
286out:
287 hist_entry__add_cpumode_period(he, al->cpumode, period);
288out_unlock:
289 pthread_mutex_unlock(&hists->lock);
290 return he;
291}
292
293struct hist_entry *__hists__add_branch_entry(struct hists *self,
294 struct addr_location *al,
295 struct symbol *sym_parent,
296 struct branch_info *bi,
297 u64 period)
298{
299 struct hist_entry entry = {
300 .thread = al->thread,
301 .ms = {
302 .map = bi->to.map,
303 .sym = bi->to.sym,
304 },
305 .cpu = al->cpu,
306 .ip = bi->to.addr,
307 .level = al->level,
308 .period = period,
309 .parent = sym_parent,
310 .filtered = symbol__parent_filter(sym_parent),
311 .branch_info = bi,
312 };
313
314 return add_hist_entry(self, &entry, al, period);
315}
316
317struct hist_entry *__hists__add_entry(struct hists *self,
318 struct addr_location *al,
319 struct symbol *sym_parent, u64 period)
320{
321 struct hist_entry entry = {
322 .thread = al->thread,
323 .ms = {
324 .map = al->map,
325 .sym = al->sym,
326 },
327 .cpu = al->cpu,
328 .ip = al->addr,
329 .level = al->level,
330 .period = period,
331 .parent = sym_parent,
332 .filtered = symbol__parent_filter(sym_parent),
333 };
334
335 return add_hist_entry(self, &entry, al, period);
336}
337
338int64_t
339hist_entry__cmp(struct hist_entry *left, struct hist_entry *right)
340{
341 struct sort_entry *se;
342 int64_t cmp = 0;
343
344 list_for_each_entry(se, &hist_entry__sort_list, list) {
345 cmp = se->se_cmp(left, right);
346 if (cmp)
347 break;
348 }
349
350 return cmp;
351}
352
353int64_t
354hist_entry__collapse(struct hist_entry *left, struct hist_entry *right)
355{
356 struct sort_entry *se;
357 int64_t cmp = 0;
358
359 list_for_each_entry(se, &hist_entry__sort_list, list) {
360 int64_t (*f)(struct hist_entry *, struct hist_entry *);
361
362 f = se->se_collapse ?: se->se_cmp;
363
364 cmp = f(left, right);
365 if (cmp)
366 break;
367 }
368
369 return cmp;
370}
371
372void hist_entry__free(struct hist_entry *he)
373{
374 free(he);
375}
376
377/*
378 * collapse the histogram
379 */
380
381static bool hists__collapse_insert_entry(struct hists *hists __used,
382 struct rb_root *root,
383 struct hist_entry *he)
384{
385 struct rb_node **p = &root->rb_node;
386 struct rb_node *parent = NULL;
387 struct hist_entry *iter;
388 int64_t cmp;
389
390 while (*p != NULL) {
391 parent = *p;
392 iter = rb_entry(parent, struct hist_entry, rb_node_in);
393
394 cmp = hist_entry__collapse(iter, he);
395
396 if (!cmp) {
397 iter->period += he->period;
398 iter->nr_events += he->nr_events;
399 if (symbol_conf.use_callchain) {
400 callchain_cursor_reset(&callchain_cursor);
401 callchain_merge(&callchain_cursor,
402 iter->callchain,
403 he->callchain);
404 }
405 hist_entry__free(he);
406 return false;
407 }
408
409 if (cmp < 0)
410 p = &(*p)->rb_left;
411 else
412 p = &(*p)->rb_right;
413 }
414
415 rb_link_node(&he->rb_node_in, parent, p);
416 rb_insert_color(&he->rb_node_in, root);
417 return true;
418}
419
420static struct rb_root *hists__get_rotate_entries_in(struct hists *hists)
421{
422 struct rb_root *root;
423
424 pthread_mutex_lock(&hists->lock);
425
426 root = hists->entries_in;
427 if (++hists->entries_in > &hists->entries_in_array[1])
428 hists->entries_in = &hists->entries_in_array[0];
429
430 pthread_mutex_unlock(&hists->lock);
431
432 return root;
433}
434
435static void hists__apply_filters(struct hists *hists, struct hist_entry *he)
436{
437 hists__filter_entry_by_dso(hists, he);
438 hists__filter_entry_by_thread(hists, he);
439 hists__filter_entry_by_symbol(hists, he);
440}
441
442static void __hists__collapse_resort(struct hists *hists, bool threaded)
443{
444 struct rb_root *root;
445 struct rb_node *next;
446 struct hist_entry *n;
447
448 if (!sort__need_collapse && !threaded)
449 return;
450
451 root = hists__get_rotate_entries_in(hists);
452 next = rb_first(root);
453
454 while (next) {
455 n = rb_entry(next, struct hist_entry, rb_node_in);
456 next = rb_next(&n->rb_node_in);
457
458 rb_erase(&n->rb_node_in, root);
459 if (hists__collapse_insert_entry(hists, &hists->entries_collapsed, n)) {
460 /*
461 * If it wasn't combined with one of the entries already
462 * collapsed, we need to apply the filters that may have
463 * been set by, say, the hist_browser.
464 */
465 hists__apply_filters(hists, n);
466 }
467 }
468}
469
470void hists__collapse_resort(struct hists *hists)
471{
472 return __hists__collapse_resort(hists, false);
473}
474
475void hists__collapse_resort_threaded(struct hists *hists)
476{
477 return __hists__collapse_resort(hists, true);
478}
479
480/*
481 * reverse the map, sort on period.
482 */
483
484static void __hists__insert_output_entry(struct rb_root *entries,
485 struct hist_entry *he,
486 u64 min_callchain_hits)
487{
488 struct rb_node **p = &entries->rb_node;
489 struct rb_node *parent = NULL;
490 struct hist_entry *iter;
491
492 if (symbol_conf.use_callchain)
493 callchain_param.sort(&he->sorted_chain, he->callchain,
494 min_callchain_hits, &callchain_param);
495
496 while (*p != NULL) {
497 parent = *p;
498 iter = rb_entry(parent, struct hist_entry, rb_node);
499
500 if (he->period > iter->period)
501 p = &(*p)->rb_left;
502 else
503 p = &(*p)->rb_right;
504 }
505
506 rb_link_node(&he->rb_node, parent, p);
507 rb_insert_color(&he->rb_node, entries);
508}
509
510static void __hists__output_resort(struct hists *hists, bool threaded)
511{
512 struct rb_root *root;
513 struct rb_node *next;
514 struct hist_entry *n;
515 u64 min_callchain_hits;
516
517 min_callchain_hits = hists->stats.total_period * (callchain_param.min_percent / 100);
518
519 if (sort__need_collapse || threaded)
520 root = &hists->entries_collapsed;
521 else
522 root = hists->entries_in;
523
524 next = rb_first(root);
525 hists->entries = RB_ROOT;
526
527 hists->nr_entries = 0;
528 hists->stats.total_period = 0;
529 hists__reset_col_len(hists);
530
531 while (next) {
532 n = rb_entry(next, struct hist_entry, rb_node_in);
533 next = rb_next(&n->rb_node_in);
534
535 __hists__insert_output_entry(&hists->entries, n, min_callchain_hits);
536 hists__inc_nr_entries(hists, n);
537 }
538}
539
540void hists__output_resort(struct hists *hists)
541{
542 return __hists__output_resort(hists, false);
543}
544
545void hists__output_resort_threaded(struct hists *hists)
546{
547 return __hists__output_resort(hists, true);
548}
549
550static size_t callchain__fprintf_left_margin(FILE *fp, int left_margin)
551{
552 int i;
553 int ret = fprintf(fp, " ");
554
555 for (i = 0; i < left_margin; i++)
556 ret += fprintf(fp, " ");
557
558 return ret;
559}
560
561static size_t ipchain__fprintf_graph_line(FILE *fp, int depth, int depth_mask,
562 int left_margin)
563{
564 int i;
565 size_t ret = callchain__fprintf_left_margin(fp, left_margin);
566
567 for (i = 0; i < depth; i++)
568 if (depth_mask & (1 << i))
569 ret += fprintf(fp, "| ");
570 else
571 ret += fprintf(fp, " ");
572
573 ret += fprintf(fp, "\n");
574
575 return ret;
576}
577
578static size_t ipchain__fprintf_graph(FILE *fp, struct callchain_list *chain,
579 int depth, int depth_mask, int period,
580 u64 total_samples, u64 hits,
581 int left_margin)
582{
583 int i;
584 size_t ret = 0;
585
586 ret += callchain__fprintf_left_margin(fp, left_margin);
587 for (i = 0; i < depth; i++) {
588 if (depth_mask & (1 << i))
589 ret += fprintf(fp, "|");
590 else
591 ret += fprintf(fp, " ");
592 if (!period && i == depth - 1) {
593 double percent;
594
595 percent = hits * 100.0 / total_samples;
596 ret += percent_color_fprintf(fp, "--%2.2f%%-- ", percent);
597 } else
598 ret += fprintf(fp, "%s", " ");
599 }
600 if (chain->ms.sym)
601 ret += fprintf(fp, "%s\n", chain->ms.sym->name);
602 else
603 ret += fprintf(fp, "0x%0" PRIx64 "\n", chain->ip);
604
605 return ret;
606}
607
608static struct symbol *rem_sq_bracket;
609static struct callchain_list rem_hits;
610
611static void init_rem_hits(void)
612{
613 rem_sq_bracket = malloc(sizeof(*rem_sq_bracket) + 6);
614 if (!rem_sq_bracket) {
615 fprintf(stderr, "Not enough memory to display remaining hits\n");
616 return;
617 }
618
619 strcpy(rem_sq_bracket->name, "[...]");
620 rem_hits.ms.sym = rem_sq_bracket;
621}
622
623static size_t __callchain__fprintf_graph(FILE *fp, struct rb_root *root,
624 u64 total_samples, int depth,
625 int depth_mask, int left_margin)
626{
627 struct rb_node *node, *next;
628 struct callchain_node *child;
629 struct callchain_list *chain;
630 int new_depth_mask = depth_mask;
631 u64 remaining;
632 size_t ret = 0;
633 int i;
634 uint entries_printed = 0;
635
636 remaining = total_samples;
637
638 node = rb_first(root);
639 while (node) {
640 u64 new_total;
641 u64 cumul;
642
643 child = rb_entry(node, struct callchain_node, rb_node);
644 cumul = callchain_cumul_hits(child);
645 remaining -= cumul;
646
647 /*
648 * The depth mask manages the output of pipes that show
649 * the depth. We don't want to keep the pipes of the current
650 * level for the last child of this depth.
651 * Except if we have remaining filtered hits. They will
652 * supersede the last child
653 */
654 next = rb_next(node);
655 if (!next && (callchain_param.mode != CHAIN_GRAPH_REL || !remaining))
656 new_depth_mask &= ~(1 << (depth - 1));
657
658 /*
659 * But we keep the older depth mask for the line separator
660 * to keep the level link until we reach the last child
661 */
662 ret += ipchain__fprintf_graph_line(fp, depth, depth_mask,
663 left_margin);
664 i = 0;
665 list_for_each_entry(chain, &child->val, list) {
666 ret += ipchain__fprintf_graph(fp, chain, depth,
667 new_depth_mask, i++,
668 total_samples,
669 cumul,
670 left_margin);
671 }
672
673 if (callchain_param.mode == CHAIN_GRAPH_REL)
674 new_total = child->children_hit;
675 else
676 new_total = total_samples;
677
678 ret += __callchain__fprintf_graph(fp, &child->rb_root, new_total,
679 depth + 1,
680 new_depth_mask | (1 << depth),
681 left_margin);
682 node = next;
683 if (++entries_printed == callchain_param.print_limit)
684 break;
685 }
686
687 if (callchain_param.mode == CHAIN_GRAPH_REL &&
688 remaining && remaining != total_samples) {
689
690 if (!rem_sq_bracket)
691 return ret;
692
693 new_depth_mask &= ~(1 << (depth - 1));
694 ret += ipchain__fprintf_graph(fp, &rem_hits, depth,
695 new_depth_mask, 0, total_samples,
696 remaining, left_margin);
697 }
698
699 return ret;
700}
701
702static size_t callchain__fprintf_graph(FILE *fp, struct rb_root *root,
703 u64 total_samples, int left_margin)
704{
705 struct callchain_node *cnode;
706 struct callchain_list *chain;
707 u32 entries_printed = 0;
708 bool printed = false;
709 struct rb_node *node;
710 int i = 0;
711 int ret;
712
713 /*
714 * If have one single callchain root, don't bother printing
715 * its percentage (100 % in fractal mode and the same percentage
716 * than the hist in graph mode). This also avoid one level of column.
717 */
718 node = rb_first(root);
719 if (node && !rb_next(node)) {
720 cnode = rb_entry(node, struct callchain_node, rb_node);
721 list_for_each_entry(chain, &cnode->val, list) {
722 /*
723 * If we sort by symbol, the first entry is the same than
724 * the symbol. No need to print it otherwise it appears as
725 * displayed twice.
726 */
727 if (!i++ && sort__first_dimension == SORT_SYM)
728 continue;
729 if (!printed) {
730 ret += callchain__fprintf_left_margin(fp, left_margin);
731 ret += fprintf(fp, "|\n");
732 ret += callchain__fprintf_left_margin(fp, left_margin);
733 ret += fprintf(fp, "---");
734 left_margin += 3;
735 printed = true;
736 } else
737 ret += callchain__fprintf_left_margin(fp, left_margin);
738
739 if (chain->ms.sym)
740 ret += fprintf(fp, " %s\n", chain->ms.sym->name);
741 else
742 ret += fprintf(fp, " %p\n", (void *)(long)chain->ip);
743
744 if (++entries_printed == callchain_param.print_limit)
745 break;
746 }
747 root = &cnode->rb_root;
748 }
749
750 return __callchain__fprintf_graph(fp, root, total_samples,
751 1, 1, left_margin);
752}
753
754static size_t __callchain__fprintf_flat(FILE *fp,
755 struct callchain_node *self,
756 u64 total_samples)
757{
758 struct callchain_list *chain;
759 size_t ret = 0;
760
761 if (!self)
762 return 0;
763
764 ret += __callchain__fprintf_flat(fp, self->parent, total_samples);
765
766
767 list_for_each_entry(chain, &self->val, list) {
768 if (chain->ip >= PERF_CONTEXT_MAX)
769 continue;
770 if (chain->ms.sym)
771 ret += fprintf(fp, " %s\n", chain->ms.sym->name);
772 else
773 ret += fprintf(fp, " %p\n",
774 (void *)(long)chain->ip);
775 }
776
777 return ret;
778}
779
780static size_t callchain__fprintf_flat(FILE *fp, struct rb_root *self,
781 u64 total_samples)
782{
783 size_t ret = 0;
784 u32 entries_printed = 0;
785 struct rb_node *rb_node;
786 struct callchain_node *chain;
787
788 rb_node = rb_first(self);
789 while (rb_node) {
790 double percent;
791
792 chain = rb_entry(rb_node, struct callchain_node, rb_node);
793 percent = chain->hit * 100.0 / total_samples;
794
795 ret = percent_color_fprintf(fp, " %6.2f%%\n", percent);
796 ret += __callchain__fprintf_flat(fp, chain, total_samples);
797 ret += fprintf(fp, "\n");
798 if (++entries_printed == callchain_param.print_limit)
799 break;
800
801 rb_node = rb_next(rb_node);
802 }
803
804 return ret;
805}
806
807static size_t hist_entry_callchain__fprintf(struct hist_entry *he,
808 u64 total_samples, int left_margin,
809 FILE *fp)
810{
811 switch (callchain_param.mode) {
812 case CHAIN_GRAPH_REL:
813 return callchain__fprintf_graph(fp, &he->sorted_chain, he->period,
814 left_margin);
815 break;
816 case CHAIN_GRAPH_ABS:
817 return callchain__fprintf_graph(fp, &he->sorted_chain, total_samples,
818 left_margin);
819 break;
820 case CHAIN_FLAT:
821 return callchain__fprintf_flat(fp, &he->sorted_chain, total_samples);
822 break;
823 case CHAIN_NONE:
824 break;
825 default:
826 pr_err("Bad callchain mode\n");
827 }
828
829 return 0;
830}
831
832void hists__output_recalc_col_len(struct hists *hists, int max_rows)
833{
834 struct rb_node *next = rb_first(&hists->entries);
835 struct hist_entry *n;
836 int row = 0;
837
838 hists__reset_col_len(hists);
839
840 while (next && row++ < max_rows) {
841 n = rb_entry(next, struct hist_entry, rb_node);
842 if (!n->filtered)
843 hists__calc_col_len(hists, n);
844 next = rb_next(&n->rb_node);
845 }
846}
847
848static int hist_entry__pcnt_snprintf(struct hist_entry *he, char *s,
849 size_t size, struct hists *pair_hists,
850 bool show_displacement, long displacement,
851 bool color, u64 total_period)
852{
853 u64 period, total, period_sys, period_us, period_guest_sys, period_guest_us;
854 u64 nr_events;
855 const char *sep = symbol_conf.field_sep;
856 int ret;
857
858 if (symbol_conf.exclude_other && !he->parent)
859 return 0;
860
861 if (pair_hists) {
862 period = he->pair ? he->pair->period : 0;
863 nr_events = he->pair ? he->pair->nr_events : 0;
864 total = pair_hists->stats.total_period;
865 period_sys = he->pair ? he->pair->period_sys : 0;
866 period_us = he->pair ? he->pair->period_us : 0;
867 period_guest_sys = he->pair ? he->pair->period_guest_sys : 0;
868 period_guest_us = he->pair ? he->pair->period_guest_us : 0;
869 } else {
870 period = he->period;
871 nr_events = he->nr_events;
872 total = total_period;
873 period_sys = he->period_sys;
874 period_us = he->period_us;
875 period_guest_sys = he->period_guest_sys;
876 period_guest_us = he->period_guest_us;
877 }
878
879 if (total) {
880 if (color)
881 ret = percent_color_snprintf(s, size,
882 sep ? "%.2f" : " %6.2f%%",
883 (period * 100.0) / total);
884 else
885 ret = scnprintf(s, size, sep ? "%.2f" : " %6.2f%%",
886 (period * 100.0) / total);
887 if (symbol_conf.show_cpu_utilization) {
888 ret += percent_color_snprintf(s + ret, size - ret,
889 sep ? "%.2f" : " %6.2f%%",
890 (period_sys * 100.0) / total);
891 ret += percent_color_snprintf(s + ret, size - ret,
892 sep ? "%.2f" : " %6.2f%%",
893 (period_us * 100.0) / total);
894 if (perf_guest) {
895 ret += percent_color_snprintf(s + ret,
896 size - ret,
897 sep ? "%.2f" : " %6.2f%%",
898 (period_guest_sys * 100.0) /
899 total);
900 ret += percent_color_snprintf(s + ret,
901 size - ret,
902 sep ? "%.2f" : " %6.2f%%",
903 (period_guest_us * 100.0) /
904 total);
905 }
906 }
907 } else
908 ret = scnprintf(s, size, sep ? "%" PRIu64 : "%12" PRIu64 " ", period);
909
910 if (symbol_conf.show_nr_samples) {
911 if (sep)
912 ret += scnprintf(s + ret, size - ret, "%c%" PRIu64, *sep, nr_events);
913 else
914 ret += scnprintf(s + ret, size - ret, "%11" PRIu64, nr_events);
915 }
916
917 if (symbol_conf.show_total_period) {
918 if (sep)
919 ret += scnprintf(s + ret, size - ret, "%c%" PRIu64, *sep, period);
920 else
921 ret += scnprintf(s + ret, size - ret, " %12" PRIu64, period);
922 }
923
924 if (pair_hists) {
925 char bf[32];
926 double old_percent = 0, new_percent = 0, diff;
927
928 if (total > 0)
929 old_percent = (period * 100.0) / total;
930 if (total_period > 0)
931 new_percent = (he->period * 100.0) / total_period;
932
933 diff = new_percent - old_percent;
934
935 if (fabs(diff) >= 0.01)
936 scnprintf(bf, sizeof(bf), "%+4.2F%%", diff);
937 else
938 scnprintf(bf, sizeof(bf), " ");
939
940 if (sep)
941 ret += scnprintf(s + ret, size - ret, "%c%s", *sep, bf);
942 else
943 ret += scnprintf(s + ret, size - ret, "%11.11s", bf);
944
945 if (show_displacement) {
946 if (displacement)
947 scnprintf(bf, sizeof(bf), "%+4ld", displacement);
948 else
949 scnprintf(bf, sizeof(bf), " ");
950
951 if (sep)
952 ret += scnprintf(s + ret, size - ret, "%c%s", *sep, bf);
953 else
954 ret += scnprintf(s + ret, size - ret, "%6.6s", bf);
955 }
956 }
957
958 return ret;
959}
960
961int hist_entry__snprintf(struct hist_entry *he, char *s, size_t size,
962 struct hists *hists)
963{
964 const char *sep = symbol_conf.field_sep;
965 struct sort_entry *se;
966 int ret = 0;
967
968 list_for_each_entry(se, &hist_entry__sort_list, list) {
969 if (se->elide)
970 continue;
971
972 ret += scnprintf(s + ret, size - ret, "%s", sep ?: " ");
973 ret += se->se_snprintf(he, s + ret, size - ret,
974 hists__col_len(hists, se->se_width_idx));
975 }
976
977 return ret;
978}
979
980static int hist_entry__fprintf(struct hist_entry *he, size_t size,
981 struct hists *hists, struct hists *pair_hists,
982 bool show_displacement, long displacement,
983 u64 total_period, FILE *fp)
984{
985 char bf[512];
986 int ret;
987
988 if (size == 0 || size > sizeof(bf))
989 size = sizeof(bf);
990
991 ret = hist_entry__pcnt_snprintf(he, bf, size, pair_hists,
992 show_displacement, displacement,
993 true, total_period);
994 hist_entry__snprintf(he, bf + ret, size - ret, hists);
995 return fprintf(fp, "%s\n", bf);
996}
997
998static size_t hist_entry__fprintf_callchain(struct hist_entry *he,
999 struct hists *hists,
1000 u64 total_period, FILE *fp)
1001{
1002 int left_margin = 0;
1003
1004 if (sort__first_dimension == SORT_COMM) {
1005 struct sort_entry *se = list_first_entry(&hist_entry__sort_list,
1006 typeof(*se), list);
1007 left_margin = hists__col_len(hists, se->se_width_idx);
1008 left_margin -= thread__comm_len(he->thread);
1009 }
1010
1011 return hist_entry_callchain__fprintf(he, total_period, left_margin, fp);
1012}
1013
1014size_t hists__fprintf(struct hists *hists, struct hists *pair,
1015 bool show_displacement, bool show_header, int max_rows,
1016 int max_cols, FILE *fp)
1017{
1018 struct sort_entry *se;
1019 struct rb_node *nd;
1020 size_t ret = 0;
1021 u64 total_period;
1022 unsigned long position = 1;
1023 long displacement = 0;
1024 unsigned int width;
1025 const char *sep = symbol_conf.field_sep;
1026 const char *col_width = symbol_conf.col_width_list_str;
1027 int nr_rows = 0;
1028
1029 init_rem_hits();
1030
1031 if (!show_header)
1032 goto print_entries;
1033
1034 fprintf(fp, "# %s", pair ? "Baseline" : "Overhead");
1035
1036 if (symbol_conf.show_cpu_utilization) {
1037 if (sep) {
1038 ret += fprintf(fp, "%csys", *sep);
1039 ret += fprintf(fp, "%cus", *sep);
1040 if (perf_guest) {
1041 ret += fprintf(fp, "%cguest sys", *sep);
1042 ret += fprintf(fp, "%cguest us", *sep);
1043 }
1044 } else {
1045 ret += fprintf(fp, " sys ");
1046 ret += fprintf(fp, " us ");
1047 if (perf_guest) {
1048 ret += fprintf(fp, " guest sys ");
1049 ret += fprintf(fp, " guest us ");
1050 }
1051 }
1052 }
1053
1054 if (symbol_conf.show_nr_samples) {
1055 if (sep)
1056 fprintf(fp, "%cSamples", *sep);
1057 else
1058 fputs(" Samples ", fp);
1059 }
1060
1061 if (symbol_conf.show_total_period) {
1062 if (sep)
1063 ret += fprintf(fp, "%cPeriod", *sep);
1064 else
1065 ret += fprintf(fp, " Period ");
1066 }
1067
1068 if (pair) {
1069 if (sep)
1070 ret += fprintf(fp, "%cDelta", *sep);
1071 else
1072 ret += fprintf(fp, " Delta ");
1073
1074 if (show_displacement) {
1075 if (sep)
1076 ret += fprintf(fp, "%cDisplacement", *sep);
1077 else
1078 ret += fprintf(fp, " Displ");
1079 }
1080 }
1081
1082 list_for_each_entry(se, &hist_entry__sort_list, list) {
1083 if (se->elide)
1084 continue;
1085 if (sep) {
1086 fprintf(fp, "%c%s", *sep, se->se_header);
1087 continue;
1088 }
1089 width = strlen(se->se_header);
1090 if (symbol_conf.col_width_list_str) {
1091 if (col_width) {
1092 hists__set_col_len(hists, se->se_width_idx,
1093 atoi(col_width));
1094 col_width = strchr(col_width, ',');
1095 if (col_width)
1096 ++col_width;
1097 }
1098 }
1099 if (!hists__new_col_len(hists, se->se_width_idx, width))
1100 width = hists__col_len(hists, se->se_width_idx);
1101 fprintf(fp, " %*s", width, se->se_header);
1102 }
1103
1104 fprintf(fp, "\n");
1105 if (max_rows && ++nr_rows >= max_rows)
1106 goto out;
1107
1108 if (sep)
1109 goto print_entries;
1110
1111 fprintf(fp, "# ........");
1112 if (symbol_conf.show_cpu_utilization)
1113 fprintf(fp, " ....... .......");
1114 if (symbol_conf.show_nr_samples)
1115 fprintf(fp, " ..........");
1116 if (symbol_conf.show_total_period)
1117 fprintf(fp, " ............");
1118 if (pair) {
1119 fprintf(fp, " ..........");
1120 if (show_displacement)
1121 fprintf(fp, " .....");
1122 }
1123 list_for_each_entry(se, &hist_entry__sort_list, list) {
1124 unsigned int i;
1125
1126 if (se->elide)
1127 continue;
1128
1129 fprintf(fp, " ");
1130 width = hists__col_len(hists, se->se_width_idx);
1131 if (width == 0)
1132 width = strlen(se->se_header);
1133 for (i = 0; i < width; i++)
1134 fprintf(fp, ".");
1135 }
1136
1137 fprintf(fp, "\n");
1138 if (max_rows && ++nr_rows >= max_rows)
1139 goto out;
1140
1141 fprintf(fp, "#\n");
1142 if (max_rows && ++nr_rows >= max_rows)
1143 goto out;
1144
1145print_entries:
1146 total_period = hists->stats.total_period;
1147
1148 for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {
1149 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
1150
1151 if (h->filtered)
1152 continue;
1153
1154 if (show_displacement) {
1155 if (h->pair != NULL)
1156 displacement = ((long)h->pair->position -
1157 (long)position);
1158 else
1159 displacement = 0;
1160 ++position;
1161 }
1162 ret += hist_entry__fprintf(h, max_cols, hists, pair, show_displacement,
1163 displacement, total_period, fp);
1164
1165 if (symbol_conf.use_callchain)
1166 ret += hist_entry__fprintf_callchain(h, hists, total_period, fp);
1167 if (max_rows && ++nr_rows >= max_rows)
1168 goto out;
1169
1170 if (h->ms.map == NULL && verbose > 1) {
1171 __map_groups__fprintf_maps(&h->thread->mg,
1172 MAP__FUNCTION, verbose, fp);
1173 fprintf(fp, "%.10s end\n", graph_dotted_line);
1174 }
1175 }
1176out:
1177 free(rem_sq_bracket);
1178
1179 return ret;
1180}
1181
1182/*
1183 * See hists__fprintf to match the column widths
1184 */
1185unsigned int hists__sort_list_width(struct hists *hists)
1186{
1187 struct sort_entry *se;
1188 int ret = 9; /* total % */
1189
1190 if (symbol_conf.show_cpu_utilization) {
1191 ret += 7; /* count_sys % */
1192 ret += 6; /* count_us % */
1193 if (perf_guest) {
1194 ret += 13; /* count_guest_sys % */
1195 ret += 12; /* count_guest_us % */
1196 }
1197 }
1198
1199 if (symbol_conf.show_nr_samples)
1200 ret += 11;
1201
1202 if (symbol_conf.show_total_period)
1203 ret += 13;
1204
1205 list_for_each_entry(se, &hist_entry__sort_list, list)
1206 if (!se->elide)
1207 ret += 2 + hists__col_len(hists, se->se_width_idx);
1208
1209 if (verbose) /* Addr + origin */
1210 ret += 3 + BITS_PER_LONG / 4;
1211
1212 return ret;
1213}
1214
1215static void hists__remove_entry_filter(struct hists *hists, struct hist_entry *h,
1216 enum hist_filter filter)
1217{
1218 h->filtered &= ~(1 << filter);
1219 if (h->filtered)
1220 return;
1221
1222 ++hists->nr_entries;
1223 if (h->ms.unfolded)
1224 hists->nr_entries += h->nr_rows;
1225 h->row_offset = 0;
1226 hists->stats.total_period += h->period;
1227 hists->stats.nr_events[PERF_RECORD_SAMPLE] += h->nr_events;
1228
1229 hists__calc_col_len(hists, h);
1230}
1231
1232
1233static bool hists__filter_entry_by_dso(struct hists *hists,
1234 struct hist_entry *he)
1235{
1236 if (hists->dso_filter != NULL &&
1237 (he->ms.map == NULL || he->ms.map->dso != hists->dso_filter)) {
1238 he->filtered |= (1 << HIST_FILTER__DSO);
1239 return true;
1240 }
1241
1242 return false;
1243}
1244
1245void hists__filter_by_dso(struct hists *hists)
1246{
1247 struct rb_node *nd;
1248
1249 hists->nr_entries = hists->stats.total_period = 0;
1250 hists->stats.nr_events[PERF_RECORD_SAMPLE] = 0;
1251 hists__reset_col_len(hists);
1252
1253 for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {
1254 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
1255
1256 if (symbol_conf.exclude_other && !h->parent)
1257 continue;
1258
1259 if (hists__filter_entry_by_dso(hists, h))
1260 continue;
1261
1262 hists__remove_entry_filter(hists, h, HIST_FILTER__DSO);
1263 }
1264}
1265
1266static bool hists__filter_entry_by_thread(struct hists *hists,
1267 struct hist_entry *he)
1268{
1269 if (hists->thread_filter != NULL &&
1270 he->thread != hists->thread_filter) {
1271 he->filtered |= (1 << HIST_FILTER__THREAD);
1272 return true;
1273 }
1274
1275 return false;
1276}
1277
1278void hists__filter_by_thread(struct hists *hists)
1279{
1280 struct rb_node *nd;
1281
1282 hists->nr_entries = hists->stats.total_period = 0;
1283 hists->stats.nr_events[PERF_RECORD_SAMPLE] = 0;
1284 hists__reset_col_len(hists);
1285
1286 for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {
1287 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
1288
1289 if (hists__filter_entry_by_thread(hists, h))
1290 continue;
1291
1292 hists__remove_entry_filter(hists, h, HIST_FILTER__THREAD);
1293 }
1294}
1295
1296static bool hists__filter_entry_by_symbol(struct hists *hists,
1297 struct hist_entry *he)
1298{
1299 if (hists->symbol_filter_str != NULL &&
1300 (!he->ms.sym || strstr(he->ms.sym->name,
1301 hists->symbol_filter_str) == NULL)) {
1302 he->filtered |= (1 << HIST_FILTER__SYMBOL);
1303 return true;
1304 }
1305
1306 return false;
1307}
1308
1309void hists__filter_by_symbol(struct hists *hists)
1310{
1311 struct rb_node *nd;
1312
1313 hists->nr_entries = hists->stats.total_period = 0;
1314 hists->stats.nr_events[PERF_RECORD_SAMPLE] = 0;
1315 hists__reset_col_len(hists);
1316
1317 for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {
1318 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
1319
1320 if (hists__filter_entry_by_symbol(hists, h))
1321 continue;
1322
1323 hists__remove_entry_filter(hists, h, HIST_FILTER__SYMBOL);
1324 }
1325}
1326
1327int hist_entry__inc_addr_samples(struct hist_entry *he, int evidx, u64 ip)
1328{
1329 return symbol__inc_addr_samples(he->ms.sym, he->ms.map, evidx, ip);
1330}
1331
1332int hist_entry__annotate(struct hist_entry *he, size_t privsize)
1333{
1334 return symbol__annotate(he->ms.sym, he->ms.map, privsize);
1335}
1336
1337void hists__inc_nr_events(struct hists *hists, u32 type)
1338{
1339 ++hists->stats.nr_events[0];
1340 ++hists->stats.nr_events[type];
1341}
1342
1343size_t hists__fprintf_nr_events(struct hists *hists, FILE *fp)
1344{
1345 int i;
1346 size_t ret = 0;
1347
1348 for (i = 0; i < PERF_RECORD_HEADER_MAX; ++i) {
1349 const char *name;
1350
1351 if (hists->stats.nr_events[i] == 0)
1352 continue;
1353
1354 name = perf_event__name(i);
1355 if (!strcmp(name, "UNKNOWN"))
1356 continue;
1357
1358 ret += fprintf(fp, "%16s events: %10d\n", name,
1359 hists->stats.nr_events[i]);
1360 }
1361
1362 return ret;
1363}
1// SPDX-License-Identifier: GPL-2.0
2#include "callchain.h"
3#include "debug.h"
4#include "dso.h"
5#include "build-id.h"
6#include "hist.h"
7#include "map.h"
8#include "map_symbol.h"
9#include "branch.h"
10#include "mem-events.h"
11#include "session.h"
12#include "namespaces.h"
13#include "cgroup.h"
14#include "sort.h"
15#include "units.h"
16#include "evlist.h"
17#include "evsel.h"
18#include "annotate.h"
19#include "srcline.h"
20#include "symbol.h"
21#include "thread.h"
22#include "block-info.h"
23#include "ui/progress.h"
24#include <errno.h>
25#include <math.h>
26#include <inttypes.h>
27#include <sys/param.h>
28#include <linux/rbtree.h>
29#include <linux/string.h>
30#include <linux/time64.h>
31#include <linux/zalloc.h>
32
33static bool hists__filter_entry_by_dso(struct hists *hists,
34 struct hist_entry *he);
35static bool hists__filter_entry_by_thread(struct hists *hists,
36 struct hist_entry *he);
37static bool hists__filter_entry_by_symbol(struct hists *hists,
38 struct hist_entry *he);
39static bool hists__filter_entry_by_socket(struct hists *hists,
40 struct hist_entry *he);
41
42u16 hists__col_len(struct hists *hists, enum hist_column col)
43{
44 return hists->col_len[col];
45}
46
47void hists__set_col_len(struct hists *hists, enum hist_column col, u16 len)
48{
49 hists->col_len[col] = len;
50}
51
52bool hists__new_col_len(struct hists *hists, enum hist_column col, u16 len)
53{
54 if (len > hists__col_len(hists, col)) {
55 hists__set_col_len(hists, col, len);
56 return true;
57 }
58 return false;
59}
60
61void hists__reset_col_len(struct hists *hists)
62{
63 enum hist_column col;
64
65 for (col = 0; col < HISTC_NR_COLS; ++col)
66 hists__set_col_len(hists, col, 0);
67}
68
69static void hists__set_unres_dso_col_len(struct hists *hists, int dso)
70{
71 const unsigned int unresolved_col_width = BITS_PER_LONG / 4;
72
73 if (hists__col_len(hists, dso) < unresolved_col_width &&
74 !symbol_conf.col_width_list_str && !symbol_conf.field_sep &&
75 !symbol_conf.dso_list)
76 hists__set_col_len(hists, dso, unresolved_col_width);
77}
78
79void hists__calc_col_len(struct hists *hists, struct hist_entry *h)
80{
81 const unsigned int unresolved_col_width = BITS_PER_LONG / 4;
82 int symlen;
83 u16 len;
84
85 if (h->block_info)
86 return;
87 /*
88 * +4 accounts for '[x] ' priv level info
89 * +2 accounts for 0x prefix on raw addresses
90 * +3 accounts for ' y ' symtab origin info
91 */
92 if (h->ms.sym) {
93 symlen = h->ms.sym->namelen + 4;
94 if (verbose > 0)
95 symlen += BITS_PER_LONG / 4 + 2 + 3;
96 hists__new_col_len(hists, HISTC_SYMBOL, symlen);
97 } else {
98 symlen = unresolved_col_width + 4 + 2;
99 hists__new_col_len(hists, HISTC_SYMBOL, symlen);
100 hists__set_unres_dso_col_len(hists, HISTC_DSO);
101 }
102
103 len = thread__comm_len(h->thread);
104 if (hists__new_col_len(hists, HISTC_COMM, len))
105 hists__set_col_len(hists, HISTC_THREAD, len + 8);
106
107 if (h->ms.map) {
108 len = dso__name_len(h->ms.map->dso);
109 hists__new_col_len(hists, HISTC_DSO, len);
110 }
111
112 if (h->parent)
113 hists__new_col_len(hists, HISTC_PARENT, h->parent->namelen);
114
115 if (h->branch_info) {
116 if (h->branch_info->from.ms.sym) {
117 symlen = (int)h->branch_info->from.ms.sym->namelen + 4;
118 if (verbose > 0)
119 symlen += BITS_PER_LONG / 4 + 2 + 3;
120 hists__new_col_len(hists, HISTC_SYMBOL_FROM, symlen);
121
122 symlen = dso__name_len(h->branch_info->from.ms.map->dso);
123 hists__new_col_len(hists, HISTC_DSO_FROM, symlen);
124 } else {
125 symlen = unresolved_col_width + 4 + 2;
126 hists__new_col_len(hists, HISTC_SYMBOL_FROM, symlen);
127 hists__new_col_len(hists, HISTC_ADDR_FROM, symlen);
128 hists__set_unres_dso_col_len(hists, HISTC_DSO_FROM);
129 }
130
131 if (h->branch_info->to.ms.sym) {
132 symlen = (int)h->branch_info->to.ms.sym->namelen + 4;
133 if (verbose > 0)
134 symlen += BITS_PER_LONG / 4 + 2 + 3;
135 hists__new_col_len(hists, HISTC_SYMBOL_TO, symlen);
136
137 symlen = dso__name_len(h->branch_info->to.ms.map->dso);
138 hists__new_col_len(hists, HISTC_DSO_TO, symlen);
139 } else {
140 symlen = unresolved_col_width + 4 + 2;
141 hists__new_col_len(hists, HISTC_SYMBOL_TO, symlen);
142 hists__new_col_len(hists, HISTC_ADDR_TO, symlen);
143 hists__set_unres_dso_col_len(hists, HISTC_DSO_TO);
144 }
145
146 if (h->branch_info->srcline_from)
147 hists__new_col_len(hists, HISTC_SRCLINE_FROM,
148 strlen(h->branch_info->srcline_from));
149 if (h->branch_info->srcline_to)
150 hists__new_col_len(hists, HISTC_SRCLINE_TO,
151 strlen(h->branch_info->srcline_to));
152 }
153
154 if (h->mem_info) {
155 if (h->mem_info->daddr.ms.sym) {
156 symlen = (int)h->mem_info->daddr.ms.sym->namelen + 4
157 + unresolved_col_width + 2;
158 hists__new_col_len(hists, HISTC_MEM_DADDR_SYMBOL,
159 symlen);
160 hists__new_col_len(hists, HISTC_MEM_DCACHELINE,
161 symlen + 1);
162 } else {
163 symlen = unresolved_col_width + 4 + 2;
164 hists__new_col_len(hists, HISTC_MEM_DADDR_SYMBOL,
165 symlen);
166 hists__new_col_len(hists, HISTC_MEM_DCACHELINE,
167 symlen);
168 }
169
170 if (h->mem_info->iaddr.ms.sym) {
171 symlen = (int)h->mem_info->iaddr.ms.sym->namelen + 4
172 + unresolved_col_width + 2;
173 hists__new_col_len(hists, HISTC_MEM_IADDR_SYMBOL,
174 symlen);
175 } else {
176 symlen = unresolved_col_width + 4 + 2;
177 hists__new_col_len(hists, HISTC_MEM_IADDR_SYMBOL,
178 symlen);
179 }
180
181 if (h->mem_info->daddr.ms.map) {
182 symlen = dso__name_len(h->mem_info->daddr.ms.map->dso);
183 hists__new_col_len(hists, HISTC_MEM_DADDR_DSO,
184 symlen);
185 } else {
186 symlen = unresolved_col_width + 4 + 2;
187 hists__set_unres_dso_col_len(hists, HISTC_MEM_DADDR_DSO);
188 }
189
190 hists__new_col_len(hists, HISTC_MEM_PHYS_DADDR,
191 unresolved_col_width + 4 + 2);
192
193 hists__new_col_len(hists, HISTC_MEM_DATA_PAGE_SIZE,
194 unresolved_col_width + 4 + 2);
195
196 } else {
197 symlen = unresolved_col_width + 4 + 2;
198 hists__new_col_len(hists, HISTC_MEM_DADDR_SYMBOL, symlen);
199 hists__new_col_len(hists, HISTC_MEM_IADDR_SYMBOL, symlen);
200 hists__set_unres_dso_col_len(hists, HISTC_MEM_DADDR_DSO);
201 }
202
203 hists__new_col_len(hists, HISTC_CGROUP, 6);
204 hists__new_col_len(hists, HISTC_CGROUP_ID, 20);
205 hists__new_col_len(hists, HISTC_CPU, 3);
206 hists__new_col_len(hists, HISTC_SOCKET, 6);
207 hists__new_col_len(hists, HISTC_MEM_LOCKED, 6);
208 hists__new_col_len(hists, HISTC_MEM_TLB, 22);
209 hists__new_col_len(hists, HISTC_MEM_SNOOP, 12);
210 hists__new_col_len(hists, HISTC_MEM_LVL, 21 + 3);
211 hists__new_col_len(hists, HISTC_LOCAL_WEIGHT, 12);
212 hists__new_col_len(hists, HISTC_GLOBAL_WEIGHT, 12);
213 hists__new_col_len(hists, HISTC_MEM_BLOCKED, 10);
214 hists__new_col_len(hists, HISTC_LOCAL_INS_LAT, 13);
215 hists__new_col_len(hists, HISTC_GLOBAL_INS_LAT, 13);
216 hists__new_col_len(hists, HISTC_LOCAL_P_STAGE_CYC, 13);
217 hists__new_col_len(hists, HISTC_GLOBAL_P_STAGE_CYC, 13);
218 hists__new_col_len(hists, HISTC_ADDR, BITS_PER_LONG / 4 + 2);
219
220 if (symbol_conf.nanosecs)
221 hists__new_col_len(hists, HISTC_TIME, 16);
222 else
223 hists__new_col_len(hists, HISTC_TIME, 12);
224 hists__new_col_len(hists, HISTC_CODE_PAGE_SIZE, 6);
225
226 if (h->srcline) {
227 len = MAX(strlen(h->srcline), strlen(sort_srcline.se_header));
228 hists__new_col_len(hists, HISTC_SRCLINE, len);
229 }
230
231 if (h->srcfile)
232 hists__new_col_len(hists, HISTC_SRCFILE, strlen(h->srcfile));
233
234 if (h->transaction)
235 hists__new_col_len(hists, HISTC_TRANSACTION,
236 hist_entry__transaction_len());
237
238 if (h->trace_output)
239 hists__new_col_len(hists, HISTC_TRACE, strlen(h->trace_output));
240
241 if (h->cgroup) {
242 const char *cgrp_name = "unknown";
243 struct cgroup *cgrp = cgroup__find(h->ms.maps->machine->env,
244 h->cgroup);
245 if (cgrp != NULL)
246 cgrp_name = cgrp->name;
247
248 hists__new_col_len(hists, HISTC_CGROUP, strlen(cgrp_name));
249 }
250}
251
252void hists__output_recalc_col_len(struct hists *hists, int max_rows)
253{
254 struct rb_node *next = rb_first_cached(&hists->entries);
255 struct hist_entry *n;
256 int row = 0;
257
258 hists__reset_col_len(hists);
259
260 while (next && row++ < max_rows) {
261 n = rb_entry(next, struct hist_entry, rb_node);
262 if (!n->filtered)
263 hists__calc_col_len(hists, n);
264 next = rb_next(&n->rb_node);
265 }
266}
267
268static void he_stat__add_cpumode_period(struct he_stat *he_stat,
269 unsigned int cpumode, u64 period)
270{
271 switch (cpumode) {
272 case PERF_RECORD_MISC_KERNEL:
273 he_stat->period_sys += period;
274 break;
275 case PERF_RECORD_MISC_USER:
276 he_stat->period_us += period;
277 break;
278 case PERF_RECORD_MISC_GUEST_KERNEL:
279 he_stat->period_guest_sys += period;
280 break;
281 case PERF_RECORD_MISC_GUEST_USER:
282 he_stat->period_guest_us += period;
283 break;
284 default:
285 break;
286 }
287}
288
289static long hist_time(unsigned long htime)
290{
291 unsigned long time_quantum = symbol_conf.time_quantum;
292 if (time_quantum)
293 return (htime / time_quantum) * time_quantum;
294 return htime;
295}
296
297static void he_stat__add_period(struct he_stat *he_stat, u64 period)
298{
299 he_stat->period += period;
300 he_stat->nr_events += 1;
301}
302
303static void he_stat__add_stat(struct he_stat *dest, struct he_stat *src)
304{
305 dest->period += src->period;
306 dest->period_sys += src->period_sys;
307 dest->period_us += src->period_us;
308 dest->period_guest_sys += src->period_guest_sys;
309 dest->period_guest_us += src->period_guest_us;
310 dest->nr_events += src->nr_events;
311}
312
313static void he_stat__decay(struct he_stat *he_stat)
314{
315 he_stat->period = (he_stat->period * 7) / 8;
316 he_stat->nr_events = (he_stat->nr_events * 7) / 8;
317 /* XXX need decay for weight too? */
318}
319
320static void hists__delete_entry(struct hists *hists, struct hist_entry *he);
321
322static bool hists__decay_entry(struct hists *hists, struct hist_entry *he)
323{
324 u64 prev_period = he->stat.period;
325 u64 diff;
326
327 if (prev_period == 0)
328 return true;
329
330 he_stat__decay(&he->stat);
331 if (symbol_conf.cumulate_callchain)
332 he_stat__decay(he->stat_acc);
333 decay_callchain(he->callchain);
334
335 diff = prev_period - he->stat.period;
336
337 if (!he->depth) {
338 hists->stats.total_period -= diff;
339 if (!he->filtered)
340 hists->stats.total_non_filtered_period -= diff;
341 }
342
343 if (!he->leaf) {
344 struct hist_entry *child;
345 struct rb_node *node = rb_first_cached(&he->hroot_out);
346 while (node) {
347 child = rb_entry(node, struct hist_entry, rb_node);
348 node = rb_next(node);
349
350 if (hists__decay_entry(hists, child))
351 hists__delete_entry(hists, child);
352 }
353 }
354
355 return he->stat.period == 0;
356}
357
358static void hists__delete_entry(struct hists *hists, struct hist_entry *he)
359{
360 struct rb_root_cached *root_in;
361 struct rb_root_cached *root_out;
362
363 if (he->parent_he) {
364 root_in = &he->parent_he->hroot_in;
365 root_out = &he->parent_he->hroot_out;
366 } else {
367 if (hists__has(hists, need_collapse))
368 root_in = &hists->entries_collapsed;
369 else
370 root_in = hists->entries_in;
371 root_out = &hists->entries;
372 }
373
374 rb_erase_cached(&he->rb_node_in, root_in);
375 rb_erase_cached(&he->rb_node, root_out);
376
377 --hists->nr_entries;
378 if (!he->filtered)
379 --hists->nr_non_filtered_entries;
380
381 hist_entry__delete(he);
382}
383
384void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel)
385{
386 struct rb_node *next = rb_first_cached(&hists->entries);
387 struct hist_entry *n;
388
389 while (next) {
390 n = rb_entry(next, struct hist_entry, rb_node);
391 next = rb_next(&n->rb_node);
392 if (((zap_user && n->level == '.') ||
393 (zap_kernel && n->level != '.') ||
394 hists__decay_entry(hists, n))) {
395 hists__delete_entry(hists, n);
396 }
397 }
398}
399
400void hists__delete_entries(struct hists *hists)
401{
402 struct rb_node *next = rb_first_cached(&hists->entries);
403 struct hist_entry *n;
404
405 while (next) {
406 n = rb_entry(next, struct hist_entry, rb_node);
407 next = rb_next(&n->rb_node);
408
409 hists__delete_entry(hists, n);
410 }
411}
412
413struct hist_entry *hists__get_entry(struct hists *hists, int idx)
414{
415 struct rb_node *next = rb_first_cached(&hists->entries);
416 struct hist_entry *n;
417 int i = 0;
418
419 while (next) {
420 n = rb_entry(next, struct hist_entry, rb_node);
421 if (i == idx)
422 return n;
423
424 next = rb_next(&n->rb_node);
425 i++;
426 }
427
428 return NULL;
429}
430
431/*
432 * histogram, sorted on item, collects periods
433 */
434
435static int hist_entry__init(struct hist_entry *he,
436 struct hist_entry *template,
437 bool sample_self,
438 size_t callchain_size)
439{
440 *he = *template;
441 he->callchain_size = callchain_size;
442
443 if (symbol_conf.cumulate_callchain) {
444 he->stat_acc = malloc(sizeof(he->stat));
445 if (he->stat_acc == NULL)
446 return -ENOMEM;
447 memcpy(he->stat_acc, &he->stat, sizeof(he->stat));
448 if (!sample_self)
449 memset(&he->stat, 0, sizeof(he->stat));
450 }
451
452 map__get(he->ms.map);
453
454 if (he->branch_info) {
455 /*
456 * This branch info is (a part of) allocated from
457 * sample__resolve_bstack() and will be freed after
458 * adding new entries. So we need to save a copy.
459 */
460 he->branch_info = malloc(sizeof(*he->branch_info));
461 if (he->branch_info == NULL)
462 goto err;
463
464 memcpy(he->branch_info, template->branch_info,
465 sizeof(*he->branch_info));
466
467 map__get(he->branch_info->from.ms.map);
468 map__get(he->branch_info->to.ms.map);
469 }
470
471 if (he->mem_info) {
472 map__get(he->mem_info->iaddr.ms.map);
473 map__get(he->mem_info->daddr.ms.map);
474 }
475
476 if (hist_entry__has_callchains(he) && symbol_conf.use_callchain)
477 callchain_init(he->callchain);
478
479 if (he->raw_data) {
480 he->raw_data = memdup(he->raw_data, he->raw_size);
481 if (he->raw_data == NULL)
482 goto err_infos;
483 }
484
485 if (he->srcline) {
486 he->srcline = strdup(he->srcline);
487 if (he->srcline == NULL)
488 goto err_rawdata;
489 }
490
491 if (symbol_conf.res_sample) {
492 he->res_samples = calloc(sizeof(struct res_sample),
493 symbol_conf.res_sample);
494 if (!he->res_samples)
495 goto err_srcline;
496 }
497
498 INIT_LIST_HEAD(&he->pairs.node);
499 thread__get(he->thread);
500 he->hroot_in = RB_ROOT_CACHED;
501 he->hroot_out = RB_ROOT_CACHED;
502
503 if (!symbol_conf.report_hierarchy)
504 he->leaf = true;
505
506 return 0;
507
508err_srcline:
509 zfree(&he->srcline);
510
511err_rawdata:
512 zfree(&he->raw_data);
513
514err_infos:
515 if (he->branch_info) {
516 map__put(he->branch_info->from.ms.map);
517 map__put(he->branch_info->to.ms.map);
518 zfree(&he->branch_info);
519 }
520 if (he->mem_info) {
521 map__put(he->mem_info->iaddr.ms.map);
522 map__put(he->mem_info->daddr.ms.map);
523 }
524err:
525 map__zput(he->ms.map);
526 zfree(&he->stat_acc);
527 return -ENOMEM;
528}
529
530static void *hist_entry__zalloc(size_t size)
531{
532 return zalloc(size + sizeof(struct hist_entry));
533}
534
535static void hist_entry__free(void *ptr)
536{
537 free(ptr);
538}
539
540static struct hist_entry_ops default_ops = {
541 .new = hist_entry__zalloc,
542 .free = hist_entry__free,
543};
544
545static struct hist_entry *hist_entry__new(struct hist_entry *template,
546 bool sample_self)
547{
548 struct hist_entry_ops *ops = template->ops;
549 size_t callchain_size = 0;
550 struct hist_entry *he;
551 int err = 0;
552
553 if (!ops)
554 ops = template->ops = &default_ops;
555
556 if (symbol_conf.use_callchain)
557 callchain_size = sizeof(struct callchain_root);
558
559 he = ops->new(callchain_size);
560 if (he) {
561 err = hist_entry__init(he, template, sample_self, callchain_size);
562 if (err) {
563 ops->free(he);
564 he = NULL;
565 }
566 }
567
568 return he;
569}
570
571static u8 symbol__parent_filter(const struct symbol *parent)
572{
573 if (symbol_conf.exclude_other && parent == NULL)
574 return 1 << HIST_FILTER__PARENT;
575 return 0;
576}
577
578static void hist_entry__add_callchain_period(struct hist_entry *he, u64 period)
579{
580 if (!hist_entry__has_callchains(he) || !symbol_conf.use_callchain)
581 return;
582
583 he->hists->callchain_period += period;
584 if (!he->filtered)
585 he->hists->callchain_non_filtered_period += period;
586}
587
588static struct hist_entry *hists__findnew_entry(struct hists *hists,
589 struct hist_entry *entry,
590 struct addr_location *al,
591 bool sample_self)
592{
593 struct rb_node **p;
594 struct rb_node *parent = NULL;
595 struct hist_entry *he;
596 int64_t cmp;
597 u64 period = entry->stat.period;
598 bool leftmost = true;
599
600 p = &hists->entries_in->rb_root.rb_node;
601
602 while (*p != NULL) {
603 parent = *p;
604 he = rb_entry(parent, struct hist_entry, rb_node_in);
605
606 /*
607 * Make sure that it receives arguments in a same order as
608 * hist_entry__collapse() so that we can use an appropriate
609 * function when searching an entry regardless which sort
610 * keys were used.
611 */
612 cmp = hist_entry__cmp(he, entry);
613
614 if (!cmp) {
615 if (sample_self) {
616 he_stat__add_period(&he->stat, period);
617 hist_entry__add_callchain_period(he, period);
618 }
619 if (symbol_conf.cumulate_callchain)
620 he_stat__add_period(he->stat_acc, period);
621
622 /*
623 * This mem info was allocated from sample__resolve_mem
624 * and will not be used anymore.
625 */
626 mem_info__zput(entry->mem_info);
627
628 block_info__zput(entry->block_info);
629
630 /* If the map of an existing hist_entry has
631 * become out-of-date due to an exec() or
632 * similar, update it. Otherwise we will
633 * mis-adjust symbol addresses when computing
634 * the history counter to increment.
635 */
636 if (he->ms.map != entry->ms.map) {
637 map__put(he->ms.map);
638 he->ms.map = map__get(entry->ms.map);
639 }
640 goto out;
641 }
642
643 if (cmp < 0)
644 p = &(*p)->rb_left;
645 else {
646 p = &(*p)->rb_right;
647 leftmost = false;
648 }
649 }
650
651 he = hist_entry__new(entry, sample_self);
652 if (!he)
653 return NULL;
654
655 if (sample_self)
656 hist_entry__add_callchain_period(he, period);
657 hists->nr_entries++;
658
659 rb_link_node(&he->rb_node_in, parent, p);
660 rb_insert_color_cached(&he->rb_node_in, hists->entries_in, leftmost);
661out:
662 if (sample_self)
663 he_stat__add_cpumode_period(&he->stat, al->cpumode, period);
664 if (symbol_conf.cumulate_callchain)
665 he_stat__add_cpumode_period(he->stat_acc, al->cpumode, period);
666 return he;
667}
668
669static unsigned random_max(unsigned high)
670{
671 unsigned thresh = -high % high;
672 for (;;) {
673 unsigned r = random();
674 if (r >= thresh)
675 return r % high;
676 }
677}
678
679static void hists__res_sample(struct hist_entry *he, struct perf_sample *sample)
680{
681 struct res_sample *r;
682 int j;
683
684 if (he->num_res < symbol_conf.res_sample) {
685 j = he->num_res++;
686 } else {
687 j = random_max(symbol_conf.res_sample);
688 }
689 r = &he->res_samples[j];
690 r->time = sample->time;
691 r->cpu = sample->cpu;
692 r->tid = sample->tid;
693}
694
695static struct hist_entry*
696__hists__add_entry(struct hists *hists,
697 struct addr_location *al,
698 struct symbol *sym_parent,
699 struct branch_info *bi,
700 struct mem_info *mi,
701 struct block_info *block_info,
702 struct perf_sample *sample,
703 bool sample_self,
704 struct hist_entry_ops *ops)
705{
706 struct namespaces *ns = thread__namespaces(al->thread);
707 struct hist_entry entry = {
708 .thread = al->thread,
709 .comm = thread__comm(al->thread),
710 .cgroup_id = {
711 .dev = ns ? ns->link_info[CGROUP_NS_INDEX].dev : 0,
712 .ino = ns ? ns->link_info[CGROUP_NS_INDEX].ino : 0,
713 },
714 .cgroup = sample->cgroup,
715 .ms = {
716 .maps = al->maps,
717 .map = al->map,
718 .sym = al->sym,
719 },
720 .srcline = (char *) al->srcline,
721 .socket = al->socket,
722 .cpu = al->cpu,
723 .cpumode = al->cpumode,
724 .ip = al->addr,
725 .level = al->level,
726 .code_page_size = sample->code_page_size,
727 .stat = {
728 .nr_events = 1,
729 .period = sample->period,
730 },
731 .parent = sym_parent,
732 .filtered = symbol__parent_filter(sym_parent) | al->filtered,
733 .hists = hists,
734 .branch_info = bi,
735 .mem_info = mi,
736 .block_info = block_info,
737 .transaction = sample->transaction,
738 .raw_data = sample->raw_data,
739 .raw_size = sample->raw_size,
740 .ops = ops,
741 .time = hist_time(sample->time),
742 .weight = sample->weight,
743 .ins_lat = sample->ins_lat,
744 .p_stage_cyc = sample->p_stage_cyc,
745 }, *he = hists__findnew_entry(hists, &entry, al, sample_self);
746
747 if (!hists->has_callchains && he && he->callchain_size != 0)
748 hists->has_callchains = true;
749 if (he && symbol_conf.res_sample)
750 hists__res_sample(he, sample);
751 return he;
752}
753
754struct hist_entry *hists__add_entry(struct hists *hists,
755 struct addr_location *al,
756 struct symbol *sym_parent,
757 struct branch_info *bi,
758 struct mem_info *mi,
759 struct perf_sample *sample,
760 bool sample_self)
761{
762 return __hists__add_entry(hists, al, sym_parent, bi, mi, NULL,
763 sample, sample_self, NULL);
764}
765
766struct hist_entry *hists__add_entry_ops(struct hists *hists,
767 struct hist_entry_ops *ops,
768 struct addr_location *al,
769 struct symbol *sym_parent,
770 struct branch_info *bi,
771 struct mem_info *mi,
772 struct perf_sample *sample,
773 bool sample_self)
774{
775 return __hists__add_entry(hists, al, sym_parent, bi, mi, NULL,
776 sample, sample_self, ops);
777}
778
779struct hist_entry *hists__add_entry_block(struct hists *hists,
780 struct addr_location *al,
781 struct block_info *block_info)
782{
783 struct hist_entry entry = {
784 .block_info = block_info,
785 .hists = hists,
786 .ms = {
787 .maps = al->maps,
788 .map = al->map,
789 .sym = al->sym,
790 },
791 }, *he = hists__findnew_entry(hists, &entry, al, false);
792
793 return he;
794}
795
796static int
797iter_next_nop_entry(struct hist_entry_iter *iter __maybe_unused,
798 struct addr_location *al __maybe_unused)
799{
800 return 0;
801}
802
803static int
804iter_add_next_nop_entry(struct hist_entry_iter *iter __maybe_unused,
805 struct addr_location *al __maybe_unused)
806{
807 return 0;
808}
809
810static int
811iter_prepare_mem_entry(struct hist_entry_iter *iter, struct addr_location *al)
812{
813 struct perf_sample *sample = iter->sample;
814 struct mem_info *mi;
815
816 mi = sample__resolve_mem(sample, al);
817 if (mi == NULL)
818 return -ENOMEM;
819
820 iter->priv = mi;
821 return 0;
822}
823
824static int
825iter_add_single_mem_entry(struct hist_entry_iter *iter, struct addr_location *al)
826{
827 u64 cost;
828 struct mem_info *mi = iter->priv;
829 struct hists *hists = evsel__hists(iter->evsel);
830 struct perf_sample *sample = iter->sample;
831 struct hist_entry *he;
832
833 if (mi == NULL)
834 return -EINVAL;
835
836 cost = sample->weight;
837 if (!cost)
838 cost = 1;
839
840 /*
841 * must pass period=weight in order to get the correct
842 * sorting from hists__collapse_resort() which is solely
843 * based on periods. We want sorting be done on nr_events * weight
844 * and this is indirectly achieved by passing period=weight here
845 * and the he_stat__add_period() function.
846 */
847 sample->period = cost;
848
849 he = hists__add_entry(hists, al, iter->parent, NULL, mi,
850 sample, true);
851 if (!he)
852 return -ENOMEM;
853
854 iter->he = he;
855 return 0;
856}
857
858static int
859iter_finish_mem_entry(struct hist_entry_iter *iter,
860 struct addr_location *al __maybe_unused)
861{
862 struct evsel *evsel = iter->evsel;
863 struct hists *hists = evsel__hists(evsel);
864 struct hist_entry *he = iter->he;
865 int err = -EINVAL;
866
867 if (he == NULL)
868 goto out;
869
870 hists__inc_nr_samples(hists, he->filtered);
871
872 err = hist_entry__append_callchain(he, iter->sample);
873
874out:
875 /*
876 * We don't need to free iter->priv (mem_info) here since the mem info
877 * was either already freed in hists__findnew_entry() or passed to a
878 * new hist entry by hist_entry__new().
879 */
880 iter->priv = NULL;
881
882 iter->he = NULL;
883 return err;
884}
885
886static int
887iter_prepare_branch_entry(struct hist_entry_iter *iter, struct addr_location *al)
888{
889 struct branch_info *bi;
890 struct perf_sample *sample = iter->sample;
891
892 bi = sample__resolve_bstack(sample, al);
893 if (!bi)
894 return -ENOMEM;
895
896 iter->curr = 0;
897 iter->total = sample->branch_stack->nr;
898
899 iter->priv = bi;
900 return 0;
901}
902
903static int
904iter_add_single_branch_entry(struct hist_entry_iter *iter __maybe_unused,
905 struct addr_location *al __maybe_unused)
906{
907 return 0;
908}
909
910static int
911iter_next_branch_entry(struct hist_entry_iter *iter, struct addr_location *al)
912{
913 struct branch_info *bi = iter->priv;
914 int i = iter->curr;
915
916 if (bi == NULL)
917 return 0;
918
919 if (iter->curr >= iter->total)
920 return 0;
921
922 al->maps = bi[i].to.ms.maps;
923 al->map = bi[i].to.ms.map;
924 al->sym = bi[i].to.ms.sym;
925 al->addr = bi[i].to.addr;
926 return 1;
927}
928
929static int
930iter_add_next_branch_entry(struct hist_entry_iter *iter, struct addr_location *al)
931{
932 struct branch_info *bi;
933 struct evsel *evsel = iter->evsel;
934 struct hists *hists = evsel__hists(evsel);
935 struct perf_sample *sample = iter->sample;
936 struct hist_entry *he = NULL;
937 int i = iter->curr;
938 int err = 0;
939
940 bi = iter->priv;
941
942 if (iter->hide_unresolved && !(bi[i].from.ms.sym && bi[i].to.ms.sym))
943 goto out;
944
945 /*
946 * The report shows the percentage of total branches captured
947 * and not events sampled. Thus we use a pseudo period of 1.
948 */
949 sample->period = 1;
950 sample->weight = bi->flags.cycles ? bi->flags.cycles : 1;
951
952 he = hists__add_entry(hists, al, iter->parent, &bi[i], NULL,
953 sample, true);
954 if (he == NULL)
955 return -ENOMEM;
956
957 hists__inc_nr_samples(hists, he->filtered);
958
959out:
960 iter->he = he;
961 iter->curr++;
962 return err;
963}
964
965static int
966iter_finish_branch_entry(struct hist_entry_iter *iter,
967 struct addr_location *al __maybe_unused)
968{
969 zfree(&iter->priv);
970 iter->he = NULL;
971
972 return iter->curr >= iter->total ? 0 : -1;
973}
974
975static int
976iter_prepare_normal_entry(struct hist_entry_iter *iter __maybe_unused,
977 struct addr_location *al __maybe_unused)
978{
979 return 0;
980}
981
982static int
983iter_add_single_normal_entry(struct hist_entry_iter *iter, struct addr_location *al)
984{
985 struct evsel *evsel = iter->evsel;
986 struct perf_sample *sample = iter->sample;
987 struct hist_entry *he;
988
989 he = hists__add_entry(evsel__hists(evsel), al, iter->parent, NULL, NULL,
990 sample, true);
991 if (he == NULL)
992 return -ENOMEM;
993
994 iter->he = he;
995 return 0;
996}
997
998static int
999iter_finish_normal_entry(struct hist_entry_iter *iter,
1000 struct addr_location *al __maybe_unused)
1001{
1002 struct hist_entry *he = iter->he;
1003 struct evsel *evsel = iter->evsel;
1004 struct perf_sample *sample = iter->sample;
1005
1006 if (he == NULL)
1007 return 0;
1008
1009 iter->he = NULL;
1010
1011 hists__inc_nr_samples(evsel__hists(evsel), he->filtered);
1012
1013 return hist_entry__append_callchain(he, sample);
1014}
1015
1016static int
1017iter_prepare_cumulative_entry(struct hist_entry_iter *iter,
1018 struct addr_location *al __maybe_unused)
1019{
1020 struct hist_entry **he_cache;
1021
1022 callchain_cursor_commit(&callchain_cursor);
1023
1024 /*
1025 * This is for detecting cycles or recursions so that they're
1026 * cumulated only one time to prevent entries more than 100%
1027 * overhead.
1028 */
1029 he_cache = malloc(sizeof(*he_cache) * (callchain_cursor.nr + 1));
1030 if (he_cache == NULL)
1031 return -ENOMEM;
1032
1033 iter->priv = he_cache;
1034 iter->curr = 0;
1035
1036 return 0;
1037}
1038
1039static int
1040iter_add_single_cumulative_entry(struct hist_entry_iter *iter,
1041 struct addr_location *al)
1042{
1043 struct evsel *evsel = iter->evsel;
1044 struct hists *hists = evsel__hists(evsel);
1045 struct perf_sample *sample = iter->sample;
1046 struct hist_entry **he_cache = iter->priv;
1047 struct hist_entry *he;
1048 int err = 0;
1049
1050 he = hists__add_entry(hists, al, iter->parent, NULL, NULL,
1051 sample, true);
1052 if (he == NULL)
1053 return -ENOMEM;
1054
1055 iter->he = he;
1056 he_cache[iter->curr++] = he;
1057
1058 hist_entry__append_callchain(he, sample);
1059
1060 /*
1061 * We need to re-initialize the cursor since callchain_append()
1062 * advanced the cursor to the end.
1063 */
1064 callchain_cursor_commit(&callchain_cursor);
1065
1066 hists__inc_nr_samples(hists, he->filtered);
1067
1068 return err;
1069}
1070
1071static int
1072iter_next_cumulative_entry(struct hist_entry_iter *iter,
1073 struct addr_location *al)
1074{
1075 struct callchain_cursor_node *node;
1076
1077 node = callchain_cursor_current(&callchain_cursor);
1078 if (node == NULL)
1079 return 0;
1080
1081 return fill_callchain_info(al, node, iter->hide_unresolved);
1082}
1083
1084static bool
1085hist_entry__fast__sym_diff(struct hist_entry *left,
1086 struct hist_entry *right)
1087{
1088 struct symbol *sym_l = left->ms.sym;
1089 struct symbol *sym_r = right->ms.sym;
1090
1091 if (!sym_l && !sym_r)
1092 return left->ip != right->ip;
1093
1094 return !!_sort__sym_cmp(sym_l, sym_r);
1095}
1096
1097
1098static int
1099iter_add_next_cumulative_entry(struct hist_entry_iter *iter,
1100 struct addr_location *al)
1101{
1102 struct evsel *evsel = iter->evsel;
1103 struct perf_sample *sample = iter->sample;
1104 struct hist_entry **he_cache = iter->priv;
1105 struct hist_entry *he;
1106 struct hist_entry he_tmp = {
1107 .hists = evsel__hists(evsel),
1108 .cpu = al->cpu,
1109 .thread = al->thread,
1110 .comm = thread__comm(al->thread),
1111 .ip = al->addr,
1112 .ms = {
1113 .maps = al->maps,
1114 .map = al->map,
1115 .sym = al->sym,
1116 },
1117 .srcline = (char *) al->srcline,
1118 .parent = iter->parent,
1119 .raw_data = sample->raw_data,
1120 .raw_size = sample->raw_size,
1121 };
1122 int i;
1123 struct callchain_cursor cursor;
1124 bool fast = hists__has(he_tmp.hists, sym);
1125
1126 callchain_cursor_snapshot(&cursor, &callchain_cursor);
1127
1128 callchain_cursor_advance(&callchain_cursor);
1129
1130 /*
1131 * Check if there's duplicate entries in the callchain.
1132 * It's possible that it has cycles or recursive calls.
1133 */
1134 for (i = 0; i < iter->curr; i++) {
1135 /*
1136 * For most cases, there are no duplicate entries in callchain.
1137 * The symbols are usually different. Do a quick check for
1138 * symbols first.
1139 */
1140 if (fast && hist_entry__fast__sym_diff(he_cache[i], &he_tmp))
1141 continue;
1142
1143 if (hist_entry__cmp(he_cache[i], &he_tmp) == 0) {
1144 /* to avoid calling callback function */
1145 iter->he = NULL;
1146 return 0;
1147 }
1148 }
1149
1150 he = hists__add_entry(evsel__hists(evsel), al, iter->parent, NULL, NULL,
1151 sample, false);
1152 if (he == NULL)
1153 return -ENOMEM;
1154
1155 iter->he = he;
1156 he_cache[iter->curr++] = he;
1157
1158 if (hist_entry__has_callchains(he) && symbol_conf.use_callchain)
1159 callchain_append(he->callchain, &cursor, sample->period);
1160 return 0;
1161}
1162
1163static int
1164iter_finish_cumulative_entry(struct hist_entry_iter *iter,
1165 struct addr_location *al __maybe_unused)
1166{
1167 zfree(&iter->priv);
1168 iter->he = NULL;
1169
1170 return 0;
1171}
1172
1173const struct hist_iter_ops hist_iter_mem = {
1174 .prepare_entry = iter_prepare_mem_entry,
1175 .add_single_entry = iter_add_single_mem_entry,
1176 .next_entry = iter_next_nop_entry,
1177 .add_next_entry = iter_add_next_nop_entry,
1178 .finish_entry = iter_finish_mem_entry,
1179};
1180
1181const struct hist_iter_ops hist_iter_branch = {
1182 .prepare_entry = iter_prepare_branch_entry,
1183 .add_single_entry = iter_add_single_branch_entry,
1184 .next_entry = iter_next_branch_entry,
1185 .add_next_entry = iter_add_next_branch_entry,
1186 .finish_entry = iter_finish_branch_entry,
1187};
1188
1189const struct hist_iter_ops hist_iter_normal = {
1190 .prepare_entry = iter_prepare_normal_entry,
1191 .add_single_entry = iter_add_single_normal_entry,
1192 .next_entry = iter_next_nop_entry,
1193 .add_next_entry = iter_add_next_nop_entry,
1194 .finish_entry = iter_finish_normal_entry,
1195};
1196
1197const struct hist_iter_ops hist_iter_cumulative = {
1198 .prepare_entry = iter_prepare_cumulative_entry,
1199 .add_single_entry = iter_add_single_cumulative_entry,
1200 .next_entry = iter_next_cumulative_entry,
1201 .add_next_entry = iter_add_next_cumulative_entry,
1202 .finish_entry = iter_finish_cumulative_entry,
1203};
1204
1205int hist_entry_iter__add(struct hist_entry_iter *iter, struct addr_location *al,
1206 int max_stack_depth, void *arg)
1207{
1208 int err, err2;
1209 struct map *alm = NULL;
1210
1211 if (al)
1212 alm = map__get(al->map);
1213
1214 err = sample__resolve_callchain(iter->sample, &callchain_cursor, &iter->parent,
1215 iter->evsel, al, max_stack_depth);
1216 if (err) {
1217 map__put(alm);
1218 return err;
1219 }
1220
1221 err = iter->ops->prepare_entry(iter, al);
1222 if (err)
1223 goto out;
1224
1225 err = iter->ops->add_single_entry(iter, al);
1226 if (err)
1227 goto out;
1228
1229 if (iter->he && iter->add_entry_cb) {
1230 err = iter->add_entry_cb(iter, al, true, arg);
1231 if (err)
1232 goto out;
1233 }
1234
1235 while (iter->ops->next_entry(iter, al)) {
1236 err = iter->ops->add_next_entry(iter, al);
1237 if (err)
1238 break;
1239
1240 if (iter->he && iter->add_entry_cb) {
1241 err = iter->add_entry_cb(iter, al, false, arg);
1242 if (err)
1243 goto out;
1244 }
1245 }
1246
1247out:
1248 err2 = iter->ops->finish_entry(iter, al);
1249 if (!err)
1250 err = err2;
1251
1252 map__put(alm);
1253
1254 return err;
1255}
1256
1257int64_t
1258hist_entry__cmp(struct hist_entry *left, struct hist_entry *right)
1259{
1260 struct hists *hists = left->hists;
1261 struct perf_hpp_fmt *fmt;
1262 int64_t cmp = 0;
1263
1264 hists__for_each_sort_list(hists, fmt) {
1265 if (perf_hpp__is_dynamic_entry(fmt) &&
1266 !perf_hpp__defined_dynamic_entry(fmt, hists))
1267 continue;
1268
1269 cmp = fmt->cmp(fmt, left, right);
1270 if (cmp)
1271 break;
1272 }
1273
1274 return cmp;
1275}
1276
1277int64_t
1278hist_entry__collapse(struct hist_entry *left, struct hist_entry *right)
1279{
1280 struct hists *hists = left->hists;
1281 struct perf_hpp_fmt *fmt;
1282 int64_t cmp = 0;
1283
1284 hists__for_each_sort_list(hists, fmt) {
1285 if (perf_hpp__is_dynamic_entry(fmt) &&
1286 !perf_hpp__defined_dynamic_entry(fmt, hists))
1287 continue;
1288
1289 cmp = fmt->collapse(fmt, left, right);
1290 if (cmp)
1291 break;
1292 }
1293
1294 return cmp;
1295}
1296
1297void hist_entry__delete(struct hist_entry *he)
1298{
1299 struct hist_entry_ops *ops = he->ops;
1300
1301 thread__zput(he->thread);
1302 map__zput(he->ms.map);
1303
1304 if (he->branch_info) {
1305 map__zput(he->branch_info->from.ms.map);
1306 map__zput(he->branch_info->to.ms.map);
1307 free_srcline(he->branch_info->srcline_from);
1308 free_srcline(he->branch_info->srcline_to);
1309 zfree(&he->branch_info);
1310 }
1311
1312 if (he->mem_info) {
1313 map__zput(he->mem_info->iaddr.ms.map);
1314 map__zput(he->mem_info->daddr.ms.map);
1315 mem_info__zput(he->mem_info);
1316 }
1317
1318 if (he->block_info)
1319 block_info__zput(he->block_info);
1320
1321 zfree(&he->res_samples);
1322 zfree(&he->stat_acc);
1323 free_srcline(he->srcline);
1324 if (he->srcfile && he->srcfile[0])
1325 zfree(&he->srcfile);
1326 free_callchain(he->callchain);
1327 zfree(&he->trace_output);
1328 zfree(&he->raw_data);
1329 ops->free(he);
1330}
1331
1332/*
1333 * If this is not the last column, then we need to pad it according to the
1334 * pre-calculated max length for this column, otherwise don't bother adding
1335 * spaces because that would break viewing this with, for instance, 'less',
1336 * that would show tons of trailing spaces when a long C++ demangled method
1337 * names is sampled.
1338*/
1339int hist_entry__snprintf_alignment(struct hist_entry *he, struct perf_hpp *hpp,
1340 struct perf_hpp_fmt *fmt, int printed)
1341{
1342 if (!list_is_last(&fmt->list, &he->hists->hpp_list->fields)) {
1343 const int width = fmt->width(fmt, hpp, he->hists);
1344 if (printed < width) {
1345 advance_hpp(hpp, printed);
1346 printed = scnprintf(hpp->buf, hpp->size, "%-*s", width - printed, " ");
1347 }
1348 }
1349
1350 return printed;
1351}
1352
1353/*
1354 * collapse the histogram
1355 */
1356
1357static void hists__apply_filters(struct hists *hists, struct hist_entry *he);
1358static void hists__remove_entry_filter(struct hists *hists, struct hist_entry *he,
1359 enum hist_filter type);
1360
1361typedef bool (*fmt_chk_fn)(struct perf_hpp_fmt *fmt);
1362
1363static bool check_thread_entry(struct perf_hpp_fmt *fmt)
1364{
1365 return perf_hpp__is_thread_entry(fmt) || perf_hpp__is_comm_entry(fmt);
1366}
1367
1368static void hist_entry__check_and_remove_filter(struct hist_entry *he,
1369 enum hist_filter type,
1370 fmt_chk_fn check)
1371{
1372 struct perf_hpp_fmt *fmt;
1373 bool type_match = false;
1374 struct hist_entry *parent = he->parent_he;
1375
1376 switch (type) {
1377 case HIST_FILTER__THREAD:
1378 if (symbol_conf.comm_list == NULL &&
1379 symbol_conf.pid_list == NULL &&
1380 symbol_conf.tid_list == NULL)
1381 return;
1382 break;
1383 case HIST_FILTER__DSO:
1384 if (symbol_conf.dso_list == NULL)
1385 return;
1386 break;
1387 case HIST_FILTER__SYMBOL:
1388 if (symbol_conf.sym_list == NULL)
1389 return;
1390 break;
1391 case HIST_FILTER__PARENT:
1392 case HIST_FILTER__GUEST:
1393 case HIST_FILTER__HOST:
1394 case HIST_FILTER__SOCKET:
1395 case HIST_FILTER__C2C:
1396 default:
1397 return;
1398 }
1399
1400 /* if it's filtered by own fmt, it has to have filter bits */
1401 perf_hpp_list__for_each_format(he->hpp_list, fmt) {
1402 if (check(fmt)) {
1403 type_match = true;
1404 break;
1405 }
1406 }
1407
1408 if (type_match) {
1409 /*
1410 * If the filter is for current level entry, propagate
1411 * filter marker to parents. The marker bit was
1412 * already set by default so it only needs to clear
1413 * non-filtered entries.
1414 */
1415 if (!(he->filtered & (1 << type))) {
1416 while (parent) {
1417 parent->filtered &= ~(1 << type);
1418 parent = parent->parent_he;
1419 }
1420 }
1421 } else {
1422 /*
1423 * If current entry doesn't have matching formats, set
1424 * filter marker for upper level entries. it will be
1425 * cleared if its lower level entries is not filtered.
1426 *
1427 * For lower-level entries, it inherits parent's
1428 * filter bit so that lower level entries of a
1429 * non-filtered entry won't set the filter marker.
1430 */
1431 if (parent == NULL)
1432 he->filtered |= (1 << type);
1433 else
1434 he->filtered |= (parent->filtered & (1 << type));
1435 }
1436}
1437
1438static void hist_entry__apply_hierarchy_filters(struct hist_entry *he)
1439{
1440 hist_entry__check_and_remove_filter(he, HIST_FILTER__THREAD,
1441 check_thread_entry);
1442
1443 hist_entry__check_and_remove_filter(he, HIST_FILTER__DSO,
1444 perf_hpp__is_dso_entry);
1445
1446 hist_entry__check_and_remove_filter(he, HIST_FILTER__SYMBOL,
1447 perf_hpp__is_sym_entry);
1448
1449 hists__apply_filters(he->hists, he);
1450}
1451
1452static struct hist_entry *hierarchy_insert_entry(struct hists *hists,
1453 struct rb_root_cached *root,
1454 struct hist_entry *he,
1455 struct hist_entry *parent_he,
1456 struct perf_hpp_list *hpp_list)
1457{
1458 struct rb_node **p = &root->rb_root.rb_node;
1459 struct rb_node *parent = NULL;
1460 struct hist_entry *iter, *new;
1461 struct perf_hpp_fmt *fmt;
1462 int64_t cmp;
1463 bool leftmost = true;
1464
1465 while (*p != NULL) {
1466 parent = *p;
1467 iter = rb_entry(parent, struct hist_entry, rb_node_in);
1468
1469 cmp = 0;
1470 perf_hpp_list__for_each_sort_list(hpp_list, fmt) {
1471 cmp = fmt->collapse(fmt, iter, he);
1472 if (cmp)
1473 break;
1474 }
1475
1476 if (!cmp) {
1477 he_stat__add_stat(&iter->stat, &he->stat);
1478 return iter;
1479 }
1480
1481 if (cmp < 0)
1482 p = &parent->rb_left;
1483 else {
1484 p = &parent->rb_right;
1485 leftmost = false;
1486 }
1487 }
1488
1489 new = hist_entry__new(he, true);
1490 if (new == NULL)
1491 return NULL;
1492
1493 hists->nr_entries++;
1494
1495 /* save related format list for output */
1496 new->hpp_list = hpp_list;
1497 new->parent_he = parent_he;
1498
1499 hist_entry__apply_hierarchy_filters(new);
1500
1501 /* some fields are now passed to 'new' */
1502 perf_hpp_list__for_each_sort_list(hpp_list, fmt) {
1503 if (perf_hpp__is_trace_entry(fmt) || perf_hpp__is_dynamic_entry(fmt))
1504 he->trace_output = NULL;
1505 else
1506 new->trace_output = NULL;
1507
1508 if (perf_hpp__is_srcline_entry(fmt))
1509 he->srcline = NULL;
1510 else
1511 new->srcline = NULL;
1512
1513 if (perf_hpp__is_srcfile_entry(fmt))
1514 he->srcfile = NULL;
1515 else
1516 new->srcfile = NULL;
1517 }
1518
1519 rb_link_node(&new->rb_node_in, parent, p);
1520 rb_insert_color_cached(&new->rb_node_in, root, leftmost);
1521 return new;
1522}
1523
1524static int hists__hierarchy_insert_entry(struct hists *hists,
1525 struct rb_root_cached *root,
1526 struct hist_entry *he)
1527{
1528 struct perf_hpp_list_node *node;
1529 struct hist_entry *new_he = NULL;
1530 struct hist_entry *parent = NULL;
1531 int depth = 0;
1532 int ret = 0;
1533
1534 list_for_each_entry(node, &hists->hpp_formats, list) {
1535 /* skip period (overhead) and elided columns */
1536 if (node->level == 0 || node->skip)
1537 continue;
1538
1539 /* insert copy of 'he' for each fmt into the hierarchy */
1540 new_he = hierarchy_insert_entry(hists, root, he, parent, &node->hpp);
1541 if (new_he == NULL) {
1542 ret = -1;
1543 break;
1544 }
1545
1546 root = &new_he->hroot_in;
1547 new_he->depth = depth++;
1548 parent = new_he;
1549 }
1550
1551 if (new_he) {
1552 new_he->leaf = true;
1553
1554 if (hist_entry__has_callchains(new_he) &&
1555 symbol_conf.use_callchain) {
1556 callchain_cursor_reset(&callchain_cursor);
1557 if (callchain_merge(&callchain_cursor,
1558 new_he->callchain,
1559 he->callchain) < 0)
1560 ret = -1;
1561 }
1562 }
1563
1564 /* 'he' is no longer used */
1565 hist_entry__delete(he);
1566
1567 /* return 0 (or -1) since it already applied filters */
1568 return ret;
1569}
1570
1571static int hists__collapse_insert_entry(struct hists *hists,
1572 struct rb_root_cached *root,
1573 struct hist_entry *he)
1574{
1575 struct rb_node **p = &root->rb_root.rb_node;
1576 struct rb_node *parent = NULL;
1577 struct hist_entry *iter;
1578 int64_t cmp;
1579 bool leftmost = true;
1580
1581 if (symbol_conf.report_hierarchy)
1582 return hists__hierarchy_insert_entry(hists, root, he);
1583
1584 while (*p != NULL) {
1585 parent = *p;
1586 iter = rb_entry(parent, struct hist_entry, rb_node_in);
1587
1588 cmp = hist_entry__collapse(iter, he);
1589
1590 if (!cmp) {
1591 int ret = 0;
1592
1593 he_stat__add_stat(&iter->stat, &he->stat);
1594 if (symbol_conf.cumulate_callchain)
1595 he_stat__add_stat(iter->stat_acc, he->stat_acc);
1596
1597 if (hist_entry__has_callchains(he) && symbol_conf.use_callchain) {
1598 callchain_cursor_reset(&callchain_cursor);
1599 if (callchain_merge(&callchain_cursor,
1600 iter->callchain,
1601 he->callchain) < 0)
1602 ret = -1;
1603 }
1604 hist_entry__delete(he);
1605 return ret;
1606 }
1607
1608 if (cmp < 0)
1609 p = &(*p)->rb_left;
1610 else {
1611 p = &(*p)->rb_right;
1612 leftmost = false;
1613 }
1614 }
1615 hists->nr_entries++;
1616
1617 rb_link_node(&he->rb_node_in, parent, p);
1618 rb_insert_color_cached(&he->rb_node_in, root, leftmost);
1619 return 1;
1620}
1621
1622struct rb_root_cached *hists__get_rotate_entries_in(struct hists *hists)
1623{
1624 struct rb_root_cached *root;
1625
1626 mutex_lock(&hists->lock);
1627
1628 root = hists->entries_in;
1629 if (++hists->entries_in > &hists->entries_in_array[1])
1630 hists->entries_in = &hists->entries_in_array[0];
1631
1632 mutex_unlock(&hists->lock);
1633
1634 return root;
1635}
1636
1637static void hists__apply_filters(struct hists *hists, struct hist_entry *he)
1638{
1639 hists__filter_entry_by_dso(hists, he);
1640 hists__filter_entry_by_thread(hists, he);
1641 hists__filter_entry_by_symbol(hists, he);
1642 hists__filter_entry_by_socket(hists, he);
1643}
1644
1645int hists__collapse_resort(struct hists *hists, struct ui_progress *prog)
1646{
1647 struct rb_root_cached *root;
1648 struct rb_node *next;
1649 struct hist_entry *n;
1650 int ret;
1651
1652 if (!hists__has(hists, need_collapse))
1653 return 0;
1654
1655 hists->nr_entries = 0;
1656
1657 root = hists__get_rotate_entries_in(hists);
1658
1659 next = rb_first_cached(root);
1660
1661 while (next) {
1662 if (session_done())
1663 break;
1664 n = rb_entry(next, struct hist_entry, rb_node_in);
1665 next = rb_next(&n->rb_node_in);
1666
1667 rb_erase_cached(&n->rb_node_in, root);
1668 ret = hists__collapse_insert_entry(hists, &hists->entries_collapsed, n);
1669 if (ret < 0)
1670 return -1;
1671
1672 if (ret) {
1673 /*
1674 * If it wasn't combined with one of the entries already
1675 * collapsed, we need to apply the filters that may have
1676 * been set by, say, the hist_browser.
1677 */
1678 hists__apply_filters(hists, n);
1679 }
1680 if (prog)
1681 ui_progress__update(prog, 1);
1682 }
1683 return 0;
1684}
1685
1686static int64_t hist_entry__sort(struct hist_entry *a, struct hist_entry *b)
1687{
1688 struct hists *hists = a->hists;
1689 struct perf_hpp_fmt *fmt;
1690 int64_t cmp = 0;
1691
1692 hists__for_each_sort_list(hists, fmt) {
1693 if (perf_hpp__should_skip(fmt, a->hists))
1694 continue;
1695
1696 cmp = fmt->sort(fmt, a, b);
1697 if (cmp)
1698 break;
1699 }
1700
1701 return cmp;
1702}
1703
1704static void hists__reset_filter_stats(struct hists *hists)
1705{
1706 hists->nr_non_filtered_entries = 0;
1707 hists->stats.total_non_filtered_period = 0;
1708}
1709
1710void hists__reset_stats(struct hists *hists)
1711{
1712 hists->nr_entries = 0;
1713 hists->stats.total_period = 0;
1714
1715 hists__reset_filter_stats(hists);
1716}
1717
1718static void hists__inc_filter_stats(struct hists *hists, struct hist_entry *h)
1719{
1720 hists->nr_non_filtered_entries++;
1721 hists->stats.total_non_filtered_period += h->stat.period;
1722}
1723
1724void hists__inc_stats(struct hists *hists, struct hist_entry *h)
1725{
1726 if (!h->filtered)
1727 hists__inc_filter_stats(hists, h);
1728
1729 hists->nr_entries++;
1730 hists->stats.total_period += h->stat.period;
1731}
1732
1733static void hierarchy_recalc_total_periods(struct hists *hists)
1734{
1735 struct rb_node *node;
1736 struct hist_entry *he;
1737
1738 node = rb_first_cached(&hists->entries);
1739
1740 hists->stats.total_period = 0;
1741 hists->stats.total_non_filtered_period = 0;
1742
1743 /*
1744 * recalculate total period using top-level entries only
1745 * since lower level entries only see non-filtered entries
1746 * but upper level entries have sum of both entries.
1747 */
1748 while (node) {
1749 he = rb_entry(node, struct hist_entry, rb_node);
1750 node = rb_next(node);
1751
1752 hists->stats.total_period += he->stat.period;
1753 if (!he->filtered)
1754 hists->stats.total_non_filtered_period += he->stat.period;
1755 }
1756}
1757
1758static void hierarchy_insert_output_entry(struct rb_root_cached *root,
1759 struct hist_entry *he)
1760{
1761 struct rb_node **p = &root->rb_root.rb_node;
1762 struct rb_node *parent = NULL;
1763 struct hist_entry *iter;
1764 struct perf_hpp_fmt *fmt;
1765 bool leftmost = true;
1766
1767 while (*p != NULL) {
1768 parent = *p;
1769 iter = rb_entry(parent, struct hist_entry, rb_node);
1770
1771 if (hist_entry__sort(he, iter) > 0)
1772 p = &parent->rb_left;
1773 else {
1774 p = &parent->rb_right;
1775 leftmost = false;
1776 }
1777 }
1778
1779 rb_link_node(&he->rb_node, parent, p);
1780 rb_insert_color_cached(&he->rb_node, root, leftmost);
1781
1782 /* update column width of dynamic entry */
1783 perf_hpp_list__for_each_sort_list(he->hpp_list, fmt) {
1784 if (fmt->init)
1785 fmt->init(fmt, he);
1786 }
1787}
1788
1789static void hists__hierarchy_output_resort(struct hists *hists,
1790 struct ui_progress *prog,
1791 struct rb_root_cached *root_in,
1792 struct rb_root_cached *root_out,
1793 u64 min_callchain_hits,
1794 bool use_callchain)
1795{
1796 struct rb_node *node;
1797 struct hist_entry *he;
1798
1799 *root_out = RB_ROOT_CACHED;
1800 node = rb_first_cached(root_in);
1801
1802 while (node) {
1803 he = rb_entry(node, struct hist_entry, rb_node_in);
1804 node = rb_next(node);
1805
1806 hierarchy_insert_output_entry(root_out, he);
1807
1808 if (prog)
1809 ui_progress__update(prog, 1);
1810
1811 hists->nr_entries++;
1812 if (!he->filtered) {
1813 hists->nr_non_filtered_entries++;
1814 hists__calc_col_len(hists, he);
1815 }
1816
1817 if (!he->leaf) {
1818 hists__hierarchy_output_resort(hists, prog,
1819 &he->hroot_in,
1820 &he->hroot_out,
1821 min_callchain_hits,
1822 use_callchain);
1823 continue;
1824 }
1825
1826 if (!use_callchain)
1827 continue;
1828
1829 if (callchain_param.mode == CHAIN_GRAPH_REL) {
1830 u64 total = he->stat.period;
1831
1832 if (symbol_conf.cumulate_callchain)
1833 total = he->stat_acc->period;
1834
1835 min_callchain_hits = total * (callchain_param.min_percent / 100);
1836 }
1837
1838 callchain_param.sort(&he->sorted_chain, he->callchain,
1839 min_callchain_hits, &callchain_param);
1840 }
1841}
1842
1843static void __hists__insert_output_entry(struct rb_root_cached *entries,
1844 struct hist_entry *he,
1845 u64 min_callchain_hits,
1846 bool use_callchain)
1847{
1848 struct rb_node **p = &entries->rb_root.rb_node;
1849 struct rb_node *parent = NULL;
1850 struct hist_entry *iter;
1851 struct perf_hpp_fmt *fmt;
1852 bool leftmost = true;
1853
1854 if (use_callchain) {
1855 if (callchain_param.mode == CHAIN_GRAPH_REL) {
1856 u64 total = he->stat.period;
1857
1858 if (symbol_conf.cumulate_callchain)
1859 total = he->stat_acc->period;
1860
1861 min_callchain_hits = total * (callchain_param.min_percent / 100);
1862 }
1863 callchain_param.sort(&he->sorted_chain, he->callchain,
1864 min_callchain_hits, &callchain_param);
1865 }
1866
1867 while (*p != NULL) {
1868 parent = *p;
1869 iter = rb_entry(parent, struct hist_entry, rb_node);
1870
1871 if (hist_entry__sort(he, iter) > 0)
1872 p = &(*p)->rb_left;
1873 else {
1874 p = &(*p)->rb_right;
1875 leftmost = false;
1876 }
1877 }
1878
1879 rb_link_node(&he->rb_node, parent, p);
1880 rb_insert_color_cached(&he->rb_node, entries, leftmost);
1881
1882 /* update column width of dynamic entries */
1883 perf_hpp_list__for_each_sort_list(&perf_hpp_list, fmt) {
1884 if (fmt->init)
1885 fmt->init(fmt, he);
1886 }
1887}
1888
1889static void output_resort(struct hists *hists, struct ui_progress *prog,
1890 bool use_callchain, hists__resort_cb_t cb,
1891 void *cb_arg)
1892{
1893 struct rb_root_cached *root;
1894 struct rb_node *next;
1895 struct hist_entry *n;
1896 u64 callchain_total;
1897 u64 min_callchain_hits;
1898
1899 callchain_total = hists->callchain_period;
1900 if (symbol_conf.filter_relative)
1901 callchain_total = hists->callchain_non_filtered_period;
1902
1903 min_callchain_hits = callchain_total * (callchain_param.min_percent / 100);
1904
1905 hists__reset_stats(hists);
1906 hists__reset_col_len(hists);
1907
1908 if (symbol_conf.report_hierarchy) {
1909 hists__hierarchy_output_resort(hists, prog,
1910 &hists->entries_collapsed,
1911 &hists->entries,
1912 min_callchain_hits,
1913 use_callchain);
1914 hierarchy_recalc_total_periods(hists);
1915 return;
1916 }
1917
1918 if (hists__has(hists, need_collapse))
1919 root = &hists->entries_collapsed;
1920 else
1921 root = hists->entries_in;
1922
1923 next = rb_first_cached(root);
1924 hists->entries = RB_ROOT_CACHED;
1925
1926 while (next) {
1927 n = rb_entry(next, struct hist_entry, rb_node_in);
1928 next = rb_next(&n->rb_node_in);
1929
1930 if (cb && cb(n, cb_arg))
1931 continue;
1932
1933 __hists__insert_output_entry(&hists->entries, n, min_callchain_hits, use_callchain);
1934 hists__inc_stats(hists, n);
1935
1936 if (!n->filtered)
1937 hists__calc_col_len(hists, n);
1938
1939 if (prog)
1940 ui_progress__update(prog, 1);
1941 }
1942}
1943
1944void evsel__output_resort_cb(struct evsel *evsel, struct ui_progress *prog,
1945 hists__resort_cb_t cb, void *cb_arg)
1946{
1947 bool use_callchain;
1948
1949 if (evsel && symbol_conf.use_callchain && !symbol_conf.show_ref_callgraph)
1950 use_callchain = evsel__has_callchain(evsel);
1951 else
1952 use_callchain = symbol_conf.use_callchain;
1953
1954 use_callchain |= symbol_conf.show_branchflag_count;
1955
1956 output_resort(evsel__hists(evsel), prog, use_callchain, cb, cb_arg);
1957}
1958
1959void evsel__output_resort(struct evsel *evsel, struct ui_progress *prog)
1960{
1961 return evsel__output_resort_cb(evsel, prog, NULL, NULL);
1962}
1963
1964void hists__output_resort(struct hists *hists, struct ui_progress *prog)
1965{
1966 output_resort(hists, prog, symbol_conf.use_callchain, NULL, NULL);
1967}
1968
1969void hists__output_resort_cb(struct hists *hists, struct ui_progress *prog,
1970 hists__resort_cb_t cb)
1971{
1972 output_resort(hists, prog, symbol_conf.use_callchain, cb, NULL);
1973}
1974
1975static bool can_goto_child(struct hist_entry *he, enum hierarchy_move_dir hmd)
1976{
1977 if (he->leaf || hmd == HMD_FORCE_SIBLING)
1978 return false;
1979
1980 if (he->unfolded || hmd == HMD_FORCE_CHILD)
1981 return true;
1982
1983 return false;
1984}
1985
1986struct rb_node *rb_hierarchy_last(struct rb_node *node)
1987{
1988 struct hist_entry *he = rb_entry(node, struct hist_entry, rb_node);
1989
1990 while (can_goto_child(he, HMD_NORMAL)) {
1991 node = rb_last(&he->hroot_out.rb_root);
1992 he = rb_entry(node, struct hist_entry, rb_node);
1993 }
1994 return node;
1995}
1996
1997struct rb_node *__rb_hierarchy_next(struct rb_node *node, enum hierarchy_move_dir hmd)
1998{
1999 struct hist_entry *he = rb_entry(node, struct hist_entry, rb_node);
2000
2001 if (can_goto_child(he, hmd))
2002 node = rb_first_cached(&he->hroot_out);
2003 else
2004 node = rb_next(node);
2005
2006 while (node == NULL) {
2007 he = he->parent_he;
2008 if (he == NULL)
2009 break;
2010
2011 node = rb_next(&he->rb_node);
2012 }
2013 return node;
2014}
2015
2016struct rb_node *rb_hierarchy_prev(struct rb_node *node)
2017{
2018 struct hist_entry *he = rb_entry(node, struct hist_entry, rb_node);
2019
2020 node = rb_prev(node);
2021 if (node)
2022 return rb_hierarchy_last(node);
2023
2024 he = he->parent_he;
2025 if (he == NULL)
2026 return NULL;
2027
2028 return &he->rb_node;
2029}
2030
2031bool hist_entry__has_hierarchy_children(struct hist_entry *he, float limit)
2032{
2033 struct rb_node *node;
2034 struct hist_entry *child;
2035 float percent;
2036
2037 if (he->leaf)
2038 return false;
2039
2040 node = rb_first_cached(&he->hroot_out);
2041 child = rb_entry(node, struct hist_entry, rb_node);
2042
2043 while (node && child->filtered) {
2044 node = rb_next(node);
2045 child = rb_entry(node, struct hist_entry, rb_node);
2046 }
2047
2048 if (node)
2049 percent = hist_entry__get_percent_limit(child);
2050 else
2051 percent = 0;
2052
2053 return node && percent >= limit;
2054}
2055
2056static void hists__remove_entry_filter(struct hists *hists, struct hist_entry *h,
2057 enum hist_filter filter)
2058{
2059 h->filtered &= ~(1 << filter);
2060
2061 if (symbol_conf.report_hierarchy) {
2062 struct hist_entry *parent = h->parent_he;
2063
2064 while (parent) {
2065 he_stat__add_stat(&parent->stat, &h->stat);
2066
2067 parent->filtered &= ~(1 << filter);
2068
2069 if (parent->filtered)
2070 goto next;
2071
2072 /* force fold unfiltered entry for simplicity */
2073 parent->unfolded = false;
2074 parent->has_no_entry = false;
2075 parent->row_offset = 0;
2076 parent->nr_rows = 0;
2077next:
2078 parent = parent->parent_he;
2079 }
2080 }
2081
2082 if (h->filtered)
2083 return;
2084
2085 /* force fold unfiltered entry for simplicity */
2086 h->unfolded = false;
2087 h->has_no_entry = false;
2088 h->row_offset = 0;
2089 h->nr_rows = 0;
2090
2091 hists->stats.nr_non_filtered_samples += h->stat.nr_events;
2092
2093 hists__inc_filter_stats(hists, h);
2094 hists__calc_col_len(hists, h);
2095}
2096
2097
2098static bool hists__filter_entry_by_dso(struct hists *hists,
2099 struct hist_entry *he)
2100{
2101 if (hists->dso_filter != NULL &&
2102 (he->ms.map == NULL || he->ms.map->dso != hists->dso_filter)) {
2103 he->filtered |= (1 << HIST_FILTER__DSO);
2104 return true;
2105 }
2106
2107 return false;
2108}
2109
2110static bool hists__filter_entry_by_thread(struct hists *hists,
2111 struct hist_entry *he)
2112{
2113 if (hists->thread_filter != NULL &&
2114 he->thread != hists->thread_filter) {
2115 he->filtered |= (1 << HIST_FILTER__THREAD);
2116 return true;
2117 }
2118
2119 return false;
2120}
2121
2122static bool hists__filter_entry_by_symbol(struct hists *hists,
2123 struct hist_entry *he)
2124{
2125 if (hists->symbol_filter_str != NULL &&
2126 (!he->ms.sym || strstr(he->ms.sym->name,
2127 hists->symbol_filter_str) == NULL)) {
2128 he->filtered |= (1 << HIST_FILTER__SYMBOL);
2129 return true;
2130 }
2131
2132 return false;
2133}
2134
2135static bool hists__filter_entry_by_socket(struct hists *hists,
2136 struct hist_entry *he)
2137{
2138 if ((hists->socket_filter > -1) &&
2139 (he->socket != hists->socket_filter)) {
2140 he->filtered |= (1 << HIST_FILTER__SOCKET);
2141 return true;
2142 }
2143
2144 return false;
2145}
2146
2147typedef bool (*filter_fn_t)(struct hists *hists, struct hist_entry *he);
2148
2149static void hists__filter_by_type(struct hists *hists, int type, filter_fn_t filter)
2150{
2151 struct rb_node *nd;
2152
2153 hists->stats.nr_non_filtered_samples = 0;
2154
2155 hists__reset_filter_stats(hists);
2156 hists__reset_col_len(hists);
2157
2158 for (nd = rb_first_cached(&hists->entries); nd; nd = rb_next(nd)) {
2159 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
2160
2161 if (filter(hists, h))
2162 continue;
2163
2164 hists__remove_entry_filter(hists, h, type);
2165 }
2166}
2167
2168static void resort_filtered_entry(struct rb_root_cached *root,
2169 struct hist_entry *he)
2170{
2171 struct rb_node **p = &root->rb_root.rb_node;
2172 struct rb_node *parent = NULL;
2173 struct hist_entry *iter;
2174 struct rb_root_cached new_root = RB_ROOT_CACHED;
2175 struct rb_node *nd;
2176 bool leftmost = true;
2177
2178 while (*p != NULL) {
2179 parent = *p;
2180 iter = rb_entry(parent, struct hist_entry, rb_node);
2181
2182 if (hist_entry__sort(he, iter) > 0)
2183 p = &(*p)->rb_left;
2184 else {
2185 p = &(*p)->rb_right;
2186 leftmost = false;
2187 }
2188 }
2189
2190 rb_link_node(&he->rb_node, parent, p);
2191 rb_insert_color_cached(&he->rb_node, root, leftmost);
2192
2193 if (he->leaf || he->filtered)
2194 return;
2195
2196 nd = rb_first_cached(&he->hroot_out);
2197 while (nd) {
2198 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
2199
2200 nd = rb_next(nd);
2201 rb_erase_cached(&h->rb_node, &he->hroot_out);
2202
2203 resort_filtered_entry(&new_root, h);
2204 }
2205
2206 he->hroot_out = new_root;
2207}
2208
2209static void hists__filter_hierarchy(struct hists *hists, int type, const void *arg)
2210{
2211 struct rb_node *nd;
2212 struct rb_root_cached new_root = RB_ROOT_CACHED;
2213
2214 hists->stats.nr_non_filtered_samples = 0;
2215
2216 hists__reset_filter_stats(hists);
2217 hists__reset_col_len(hists);
2218
2219 nd = rb_first_cached(&hists->entries);
2220 while (nd) {
2221 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
2222 int ret;
2223
2224 ret = hist_entry__filter(h, type, arg);
2225
2226 /*
2227 * case 1. non-matching type
2228 * zero out the period, set filter marker and move to child
2229 */
2230 if (ret < 0) {
2231 memset(&h->stat, 0, sizeof(h->stat));
2232 h->filtered |= (1 << type);
2233
2234 nd = __rb_hierarchy_next(&h->rb_node, HMD_FORCE_CHILD);
2235 }
2236 /*
2237 * case 2. matched type (filter out)
2238 * set filter marker and move to next
2239 */
2240 else if (ret == 1) {
2241 h->filtered |= (1 << type);
2242
2243 nd = __rb_hierarchy_next(&h->rb_node, HMD_FORCE_SIBLING);
2244 }
2245 /*
2246 * case 3. ok (not filtered)
2247 * add period to hists and parents, erase the filter marker
2248 * and move to next sibling
2249 */
2250 else {
2251 hists__remove_entry_filter(hists, h, type);
2252
2253 nd = __rb_hierarchy_next(&h->rb_node, HMD_FORCE_SIBLING);
2254 }
2255 }
2256
2257 hierarchy_recalc_total_periods(hists);
2258
2259 /*
2260 * resort output after applying a new filter since filter in a lower
2261 * hierarchy can change periods in a upper hierarchy.
2262 */
2263 nd = rb_first_cached(&hists->entries);
2264 while (nd) {
2265 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
2266
2267 nd = rb_next(nd);
2268 rb_erase_cached(&h->rb_node, &hists->entries);
2269
2270 resort_filtered_entry(&new_root, h);
2271 }
2272
2273 hists->entries = new_root;
2274}
2275
2276void hists__filter_by_thread(struct hists *hists)
2277{
2278 if (symbol_conf.report_hierarchy)
2279 hists__filter_hierarchy(hists, HIST_FILTER__THREAD,
2280 hists->thread_filter);
2281 else
2282 hists__filter_by_type(hists, HIST_FILTER__THREAD,
2283 hists__filter_entry_by_thread);
2284}
2285
2286void hists__filter_by_dso(struct hists *hists)
2287{
2288 if (symbol_conf.report_hierarchy)
2289 hists__filter_hierarchy(hists, HIST_FILTER__DSO,
2290 hists->dso_filter);
2291 else
2292 hists__filter_by_type(hists, HIST_FILTER__DSO,
2293 hists__filter_entry_by_dso);
2294}
2295
2296void hists__filter_by_symbol(struct hists *hists)
2297{
2298 if (symbol_conf.report_hierarchy)
2299 hists__filter_hierarchy(hists, HIST_FILTER__SYMBOL,
2300 hists->symbol_filter_str);
2301 else
2302 hists__filter_by_type(hists, HIST_FILTER__SYMBOL,
2303 hists__filter_entry_by_symbol);
2304}
2305
2306void hists__filter_by_socket(struct hists *hists)
2307{
2308 if (symbol_conf.report_hierarchy)
2309 hists__filter_hierarchy(hists, HIST_FILTER__SOCKET,
2310 &hists->socket_filter);
2311 else
2312 hists__filter_by_type(hists, HIST_FILTER__SOCKET,
2313 hists__filter_entry_by_socket);
2314}
2315
2316void events_stats__inc(struct events_stats *stats, u32 type)
2317{
2318 ++stats->nr_events[0];
2319 ++stats->nr_events[type];
2320}
2321
2322static void hists_stats__inc(struct hists_stats *stats)
2323{
2324 ++stats->nr_samples;
2325}
2326
2327void hists__inc_nr_events(struct hists *hists)
2328{
2329 hists_stats__inc(&hists->stats);
2330}
2331
2332void hists__inc_nr_samples(struct hists *hists, bool filtered)
2333{
2334 hists_stats__inc(&hists->stats);
2335 if (!filtered)
2336 hists->stats.nr_non_filtered_samples++;
2337}
2338
2339void hists__inc_nr_lost_samples(struct hists *hists, u32 lost)
2340{
2341 hists->stats.nr_lost_samples += lost;
2342}
2343
2344static struct hist_entry *hists__add_dummy_entry(struct hists *hists,
2345 struct hist_entry *pair)
2346{
2347 struct rb_root_cached *root;
2348 struct rb_node **p;
2349 struct rb_node *parent = NULL;
2350 struct hist_entry *he;
2351 int64_t cmp;
2352 bool leftmost = true;
2353
2354 if (hists__has(hists, need_collapse))
2355 root = &hists->entries_collapsed;
2356 else
2357 root = hists->entries_in;
2358
2359 p = &root->rb_root.rb_node;
2360
2361 while (*p != NULL) {
2362 parent = *p;
2363 he = rb_entry(parent, struct hist_entry, rb_node_in);
2364
2365 cmp = hist_entry__collapse(he, pair);
2366
2367 if (!cmp)
2368 goto out;
2369
2370 if (cmp < 0)
2371 p = &(*p)->rb_left;
2372 else {
2373 p = &(*p)->rb_right;
2374 leftmost = false;
2375 }
2376 }
2377
2378 he = hist_entry__new(pair, true);
2379 if (he) {
2380 memset(&he->stat, 0, sizeof(he->stat));
2381 he->hists = hists;
2382 if (symbol_conf.cumulate_callchain)
2383 memset(he->stat_acc, 0, sizeof(he->stat));
2384 rb_link_node(&he->rb_node_in, parent, p);
2385 rb_insert_color_cached(&he->rb_node_in, root, leftmost);
2386 hists__inc_stats(hists, he);
2387 he->dummy = true;
2388 }
2389out:
2390 return he;
2391}
2392
2393static struct hist_entry *add_dummy_hierarchy_entry(struct hists *hists,
2394 struct rb_root_cached *root,
2395 struct hist_entry *pair)
2396{
2397 struct rb_node **p;
2398 struct rb_node *parent = NULL;
2399 struct hist_entry *he;
2400 struct perf_hpp_fmt *fmt;
2401 bool leftmost = true;
2402
2403 p = &root->rb_root.rb_node;
2404 while (*p != NULL) {
2405 int64_t cmp = 0;
2406
2407 parent = *p;
2408 he = rb_entry(parent, struct hist_entry, rb_node_in);
2409
2410 perf_hpp_list__for_each_sort_list(he->hpp_list, fmt) {
2411 cmp = fmt->collapse(fmt, he, pair);
2412 if (cmp)
2413 break;
2414 }
2415 if (!cmp)
2416 goto out;
2417
2418 if (cmp < 0)
2419 p = &parent->rb_left;
2420 else {
2421 p = &parent->rb_right;
2422 leftmost = false;
2423 }
2424 }
2425
2426 he = hist_entry__new(pair, true);
2427 if (he) {
2428 rb_link_node(&he->rb_node_in, parent, p);
2429 rb_insert_color_cached(&he->rb_node_in, root, leftmost);
2430
2431 he->dummy = true;
2432 he->hists = hists;
2433 memset(&he->stat, 0, sizeof(he->stat));
2434 hists__inc_stats(hists, he);
2435 }
2436out:
2437 return he;
2438}
2439
2440static struct hist_entry *hists__find_entry(struct hists *hists,
2441 struct hist_entry *he)
2442{
2443 struct rb_node *n;
2444
2445 if (hists__has(hists, need_collapse))
2446 n = hists->entries_collapsed.rb_root.rb_node;
2447 else
2448 n = hists->entries_in->rb_root.rb_node;
2449
2450 while (n) {
2451 struct hist_entry *iter = rb_entry(n, struct hist_entry, rb_node_in);
2452 int64_t cmp = hist_entry__collapse(iter, he);
2453
2454 if (cmp < 0)
2455 n = n->rb_left;
2456 else if (cmp > 0)
2457 n = n->rb_right;
2458 else
2459 return iter;
2460 }
2461
2462 return NULL;
2463}
2464
2465static struct hist_entry *hists__find_hierarchy_entry(struct rb_root_cached *root,
2466 struct hist_entry *he)
2467{
2468 struct rb_node *n = root->rb_root.rb_node;
2469
2470 while (n) {
2471 struct hist_entry *iter;
2472 struct perf_hpp_fmt *fmt;
2473 int64_t cmp = 0;
2474
2475 iter = rb_entry(n, struct hist_entry, rb_node_in);
2476 perf_hpp_list__for_each_sort_list(he->hpp_list, fmt) {
2477 cmp = fmt->collapse(fmt, iter, he);
2478 if (cmp)
2479 break;
2480 }
2481
2482 if (cmp < 0)
2483 n = n->rb_left;
2484 else if (cmp > 0)
2485 n = n->rb_right;
2486 else
2487 return iter;
2488 }
2489
2490 return NULL;
2491}
2492
2493static void hists__match_hierarchy(struct rb_root_cached *leader_root,
2494 struct rb_root_cached *other_root)
2495{
2496 struct rb_node *nd;
2497 struct hist_entry *pos, *pair;
2498
2499 for (nd = rb_first_cached(leader_root); nd; nd = rb_next(nd)) {
2500 pos = rb_entry(nd, struct hist_entry, rb_node_in);
2501 pair = hists__find_hierarchy_entry(other_root, pos);
2502
2503 if (pair) {
2504 hist_entry__add_pair(pair, pos);
2505 hists__match_hierarchy(&pos->hroot_in, &pair->hroot_in);
2506 }
2507 }
2508}
2509
2510/*
2511 * Look for pairs to link to the leader buckets (hist_entries):
2512 */
2513void hists__match(struct hists *leader, struct hists *other)
2514{
2515 struct rb_root_cached *root;
2516 struct rb_node *nd;
2517 struct hist_entry *pos, *pair;
2518
2519 if (symbol_conf.report_hierarchy) {
2520 /* hierarchy report always collapses entries */
2521 return hists__match_hierarchy(&leader->entries_collapsed,
2522 &other->entries_collapsed);
2523 }
2524
2525 if (hists__has(leader, need_collapse))
2526 root = &leader->entries_collapsed;
2527 else
2528 root = leader->entries_in;
2529
2530 for (nd = rb_first_cached(root); nd; nd = rb_next(nd)) {
2531 pos = rb_entry(nd, struct hist_entry, rb_node_in);
2532 pair = hists__find_entry(other, pos);
2533
2534 if (pair)
2535 hist_entry__add_pair(pair, pos);
2536 }
2537}
2538
2539static int hists__link_hierarchy(struct hists *leader_hists,
2540 struct hist_entry *parent,
2541 struct rb_root_cached *leader_root,
2542 struct rb_root_cached *other_root)
2543{
2544 struct rb_node *nd;
2545 struct hist_entry *pos, *leader;
2546
2547 for (nd = rb_first_cached(other_root); nd; nd = rb_next(nd)) {
2548 pos = rb_entry(nd, struct hist_entry, rb_node_in);
2549
2550 if (hist_entry__has_pairs(pos)) {
2551 bool found = false;
2552
2553 list_for_each_entry(leader, &pos->pairs.head, pairs.node) {
2554 if (leader->hists == leader_hists) {
2555 found = true;
2556 break;
2557 }
2558 }
2559 if (!found)
2560 return -1;
2561 } else {
2562 leader = add_dummy_hierarchy_entry(leader_hists,
2563 leader_root, pos);
2564 if (leader == NULL)
2565 return -1;
2566
2567 /* do not point parent in the pos */
2568 leader->parent_he = parent;
2569
2570 hist_entry__add_pair(pos, leader);
2571 }
2572
2573 if (!pos->leaf) {
2574 if (hists__link_hierarchy(leader_hists, leader,
2575 &leader->hroot_in,
2576 &pos->hroot_in) < 0)
2577 return -1;
2578 }
2579 }
2580 return 0;
2581}
2582
2583/*
2584 * Look for entries in the other hists that are not present in the leader, if
2585 * we find them, just add a dummy entry on the leader hists, with period=0,
2586 * nr_events=0, to serve as the list header.
2587 */
2588int hists__link(struct hists *leader, struct hists *other)
2589{
2590 struct rb_root_cached *root;
2591 struct rb_node *nd;
2592 struct hist_entry *pos, *pair;
2593
2594 if (symbol_conf.report_hierarchy) {
2595 /* hierarchy report always collapses entries */
2596 return hists__link_hierarchy(leader, NULL,
2597 &leader->entries_collapsed,
2598 &other->entries_collapsed);
2599 }
2600
2601 if (hists__has(other, need_collapse))
2602 root = &other->entries_collapsed;
2603 else
2604 root = other->entries_in;
2605
2606 for (nd = rb_first_cached(root); nd; nd = rb_next(nd)) {
2607 pos = rb_entry(nd, struct hist_entry, rb_node_in);
2608
2609 if (!hist_entry__has_pairs(pos)) {
2610 pair = hists__add_dummy_entry(leader, pos);
2611 if (pair == NULL)
2612 return -1;
2613 hist_entry__add_pair(pos, pair);
2614 }
2615 }
2616
2617 return 0;
2618}
2619
2620int hists__unlink(struct hists *hists)
2621{
2622 struct rb_root_cached *root;
2623 struct rb_node *nd;
2624 struct hist_entry *pos;
2625
2626 if (hists__has(hists, need_collapse))
2627 root = &hists->entries_collapsed;
2628 else
2629 root = hists->entries_in;
2630
2631 for (nd = rb_first_cached(root); nd; nd = rb_next(nd)) {
2632 pos = rb_entry(nd, struct hist_entry, rb_node_in);
2633 list_del_init(&pos->pairs.node);
2634 }
2635
2636 return 0;
2637}
2638
2639void hist__account_cycles(struct branch_stack *bs, struct addr_location *al,
2640 struct perf_sample *sample, bool nonany_branch_mode,
2641 u64 *total_cycles)
2642{
2643 struct branch_info *bi;
2644 struct branch_entry *entries = perf_sample__branch_entries(sample);
2645
2646 /* If we have branch cycles always annotate them. */
2647 if (bs && bs->nr && entries[0].flags.cycles) {
2648 int i;
2649
2650 bi = sample__resolve_bstack(sample, al);
2651 if (bi) {
2652 struct addr_map_symbol *prev = NULL;
2653
2654 /*
2655 * Ignore errors, still want to process the
2656 * other entries.
2657 *
2658 * For non standard branch modes always
2659 * force no IPC (prev == NULL)
2660 *
2661 * Note that perf stores branches reversed from
2662 * program order!
2663 */
2664 for (i = bs->nr - 1; i >= 0; i--) {
2665 addr_map_symbol__account_cycles(&bi[i].from,
2666 nonany_branch_mode ? NULL : prev,
2667 bi[i].flags.cycles);
2668 prev = &bi[i].to;
2669
2670 if (total_cycles)
2671 *total_cycles += bi[i].flags.cycles;
2672 }
2673 free(bi);
2674 }
2675 }
2676}
2677
2678size_t evlist__fprintf_nr_events(struct evlist *evlist, FILE *fp,
2679 bool skip_empty)
2680{
2681 struct evsel *pos;
2682 size_t ret = 0;
2683
2684 evlist__for_each_entry(evlist, pos) {
2685 struct hists *hists = evsel__hists(pos);
2686
2687 if (skip_empty && !hists->stats.nr_samples && !hists->stats.nr_lost_samples)
2688 continue;
2689
2690 ret += fprintf(fp, "%s stats:\n", evsel__name(pos));
2691 if (hists->stats.nr_samples)
2692 ret += fprintf(fp, "%16s events: %10d\n",
2693 "SAMPLE", hists->stats.nr_samples);
2694 if (hists->stats.nr_lost_samples)
2695 ret += fprintf(fp, "%16s events: %10d\n",
2696 "LOST_SAMPLES", hists->stats.nr_lost_samples);
2697 }
2698
2699 return ret;
2700}
2701
2702
2703u64 hists__total_period(struct hists *hists)
2704{
2705 return symbol_conf.filter_relative ? hists->stats.total_non_filtered_period :
2706 hists->stats.total_period;
2707}
2708
2709int __hists__scnprintf_title(struct hists *hists, char *bf, size_t size, bool show_freq)
2710{
2711 char unit;
2712 int printed;
2713 const struct dso *dso = hists->dso_filter;
2714 struct thread *thread = hists->thread_filter;
2715 int socket_id = hists->socket_filter;
2716 unsigned long nr_samples = hists->stats.nr_samples;
2717 u64 nr_events = hists->stats.total_period;
2718 struct evsel *evsel = hists_to_evsel(hists);
2719 const char *ev_name = evsel__name(evsel);
2720 char buf[512], sample_freq_str[64] = "";
2721 size_t buflen = sizeof(buf);
2722 char ref[30] = " show reference callgraph, ";
2723 bool enable_ref = false;
2724
2725 if (symbol_conf.filter_relative) {
2726 nr_samples = hists->stats.nr_non_filtered_samples;
2727 nr_events = hists->stats.total_non_filtered_period;
2728 }
2729
2730 if (evsel__is_group_event(evsel)) {
2731 struct evsel *pos;
2732
2733 evsel__group_desc(evsel, buf, buflen);
2734 ev_name = buf;
2735
2736 for_each_group_member(pos, evsel) {
2737 struct hists *pos_hists = evsel__hists(pos);
2738
2739 if (symbol_conf.filter_relative) {
2740 nr_samples += pos_hists->stats.nr_non_filtered_samples;
2741 nr_events += pos_hists->stats.total_non_filtered_period;
2742 } else {
2743 nr_samples += pos_hists->stats.nr_samples;
2744 nr_events += pos_hists->stats.total_period;
2745 }
2746 }
2747 }
2748
2749 if (symbol_conf.show_ref_callgraph &&
2750 strstr(ev_name, "call-graph=no"))
2751 enable_ref = true;
2752
2753 if (show_freq)
2754 scnprintf(sample_freq_str, sizeof(sample_freq_str), " %d Hz,", evsel->core.attr.sample_freq);
2755
2756 nr_samples = convert_unit(nr_samples, &unit);
2757 printed = scnprintf(bf, size,
2758 "Samples: %lu%c of event%s '%s',%s%sEvent count (approx.): %" PRIu64,
2759 nr_samples, unit, evsel->core.nr_members > 1 ? "s" : "",
2760 ev_name, sample_freq_str, enable_ref ? ref : " ", nr_events);
2761
2762
2763 if (hists->uid_filter_str)
2764 printed += snprintf(bf + printed, size - printed,
2765 ", UID: %s", hists->uid_filter_str);
2766 if (thread) {
2767 if (hists__has(hists, thread)) {
2768 printed += scnprintf(bf + printed, size - printed,
2769 ", Thread: %s(%d)",
2770 (thread->comm_set ? thread__comm_str(thread) : ""),
2771 thread->tid);
2772 } else {
2773 printed += scnprintf(bf + printed, size - printed,
2774 ", Thread: %s",
2775 (thread->comm_set ? thread__comm_str(thread) : ""));
2776 }
2777 }
2778 if (dso)
2779 printed += scnprintf(bf + printed, size - printed,
2780 ", DSO: %s", dso->short_name);
2781 if (socket_id > -1)
2782 printed += scnprintf(bf + printed, size - printed,
2783 ", Processor Socket: %d", socket_id);
2784
2785 return printed;
2786}
2787
2788int parse_filter_percentage(const struct option *opt __maybe_unused,
2789 const char *arg, int unset __maybe_unused)
2790{
2791 if (!strcmp(arg, "relative"))
2792 symbol_conf.filter_relative = true;
2793 else if (!strcmp(arg, "absolute"))
2794 symbol_conf.filter_relative = false;
2795 else {
2796 pr_debug("Invalid percentage: %s\n", arg);
2797 return -1;
2798 }
2799
2800 return 0;
2801}
2802
2803int perf_hist_config(const char *var, const char *value)
2804{
2805 if (!strcmp(var, "hist.percentage"))
2806 return parse_filter_percentage(NULL, value, 0);
2807
2808 return 0;
2809}
2810
2811int __hists__init(struct hists *hists, struct perf_hpp_list *hpp_list)
2812{
2813 memset(hists, 0, sizeof(*hists));
2814 hists->entries_in_array[0] = hists->entries_in_array[1] = RB_ROOT_CACHED;
2815 hists->entries_in = &hists->entries_in_array[0];
2816 hists->entries_collapsed = RB_ROOT_CACHED;
2817 hists->entries = RB_ROOT_CACHED;
2818 mutex_init(&hists->lock);
2819 hists->socket_filter = -1;
2820 hists->hpp_list = hpp_list;
2821 INIT_LIST_HEAD(&hists->hpp_formats);
2822 return 0;
2823}
2824
2825static void hists__delete_remaining_entries(struct rb_root_cached *root)
2826{
2827 struct rb_node *node;
2828 struct hist_entry *he;
2829
2830 while (!RB_EMPTY_ROOT(&root->rb_root)) {
2831 node = rb_first_cached(root);
2832 rb_erase_cached(node, root);
2833
2834 he = rb_entry(node, struct hist_entry, rb_node_in);
2835 hist_entry__delete(he);
2836 }
2837}
2838
2839static void hists__delete_all_entries(struct hists *hists)
2840{
2841 hists__delete_entries(hists);
2842 hists__delete_remaining_entries(&hists->entries_in_array[0]);
2843 hists__delete_remaining_entries(&hists->entries_in_array[1]);
2844 hists__delete_remaining_entries(&hists->entries_collapsed);
2845}
2846
2847static void hists_evsel__exit(struct evsel *evsel)
2848{
2849 struct hists *hists = evsel__hists(evsel);
2850 struct perf_hpp_fmt *fmt, *pos;
2851 struct perf_hpp_list_node *node, *tmp;
2852
2853 hists__delete_all_entries(hists);
2854
2855 list_for_each_entry_safe(node, tmp, &hists->hpp_formats, list) {
2856 perf_hpp_list__for_each_format_safe(&node->hpp, fmt, pos) {
2857 list_del_init(&fmt->list);
2858 free(fmt);
2859 }
2860 list_del_init(&node->list);
2861 free(node);
2862 }
2863}
2864
2865static int hists_evsel__init(struct evsel *evsel)
2866{
2867 struct hists *hists = evsel__hists(evsel);
2868
2869 __hists__init(hists, &perf_hpp_list);
2870 return 0;
2871}
2872
2873/*
2874 * XXX We probably need a hists_evsel__exit() to free the hist_entries
2875 * stored in the rbtree...
2876 */
2877
2878int hists__init(void)
2879{
2880 int err = evsel__object_config(sizeof(struct hists_evsel),
2881 hists_evsel__init, hists_evsel__exit);
2882 if (err)
2883 fputs("FATAL ERROR: Couldn't setup hists class\n", stderr);
2884
2885 return err;
2886}
2887
2888void perf_hpp_list__init(struct perf_hpp_list *list)
2889{
2890 INIT_LIST_HEAD(&list->fields);
2891 INIT_LIST_HEAD(&list->sorts);
2892}