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1#include <stdio.h>
2#include "../libslang.h"
3#include <stdlib.h>
4#include <string.h>
5#include <linux/rbtree.h>
6
7#include "../../util/evsel.h"
8#include "../../util/evlist.h"
9#include "../../util/hist.h"
10#include "../../util/pstack.h"
11#include "../../util/sort.h"
12#include "../../util/util.h"
13#include "../../arch/common.h"
14
15#include "../browser.h"
16#include "../helpline.h"
17#include "../util.h"
18#include "../ui.h"
19#include "map.h"
20
21struct hist_browser {
22 struct ui_browser b;
23 struct hists *hists;
24 struct hist_entry *he_selection;
25 struct map_symbol *selection;
26 int print_seq;
27 bool show_dso;
28 float min_pcnt;
29 u64 nr_pcnt_entries;
30};
31
32extern void hist_browser__init_hpp(void);
33
34static int hists__browser_title(struct hists *hists, char *bf, size_t size,
35 const char *ev_name);
36
37static void hist_browser__refresh_dimensions(struct hist_browser *browser)
38{
39 /* 3 == +/- toggle symbol before actual hist_entry rendering */
40 browser->b.width = 3 + (hists__sort_list_width(browser->hists) +
41 sizeof("[k]"));
42}
43
44static void hist_browser__reset(struct hist_browser *browser)
45{
46 browser->b.nr_entries = browser->hists->nr_entries;
47 hist_browser__refresh_dimensions(browser);
48 ui_browser__reset_index(&browser->b);
49}
50
51static char tree__folded_sign(bool unfolded)
52{
53 return unfolded ? '-' : '+';
54}
55
56static char map_symbol__folded(const struct map_symbol *ms)
57{
58 return ms->has_children ? tree__folded_sign(ms->unfolded) : ' ';
59}
60
61static char hist_entry__folded(const struct hist_entry *he)
62{
63 return map_symbol__folded(&he->ms);
64}
65
66static char callchain_list__folded(const struct callchain_list *cl)
67{
68 return map_symbol__folded(&cl->ms);
69}
70
71static void map_symbol__set_folding(struct map_symbol *ms, bool unfold)
72{
73 ms->unfolded = unfold ? ms->has_children : false;
74}
75
76static int callchain_node__count_rows_rb_tree(struct callchain_node *node)
77{
78 int n = 0;
79 struct rb_node *nd;
80
81 for (nd = rb_first(&node->rb_root); nd; nd = rb_next(nd)) {
82 struct callchain_node *child = rb_entry(nd, struct callchain_node, rb_node);
83 struct callchain_list *chain;
84 char folded_sign = ' '; /* No children */
85
86 list_for_each_entry(chain, &child->val, list) {
87 ++n;
88 /* We need this because we may not have children */
89 folded_sign = callchain_list__folded(chain);
90 if (folded_sign == '+')
91 break;
92 }
93
94 if (folded_sign == '-') /* Have children and they're unfolded */
95 n += callchain_node__count_rows_rb_tree(child);
96 }
97
98 return n;
99}
100
101static int callchain_node__count_rows(struct callchain_node *node)
102{
103 struct callchain_list *chain;
104 bool unfolded = false;
105 int n = 0;
106
107 list_for_each_entry(chain, &node->val, list) {
108 ++n;
109 unfolded = chain->ms.unfolded;
110 }
111
112 if (unfolded)
113 n += callchain_node__count_rows_rb_tree(node);
114
115 return n;
116}
117
118static int callchain__count_rows(struct rb_root *chain)
119{
120 struct rb_node *nd;
121 int n = 0;
122
123 for (nd = rb_first(chain); nd; nd = rb_next(nd)) {
124 struct callchain_node *node = rb_entry(nd, struct callchain_node, rb_node);
125 n += callchain_node__count_rows(node);
126 }
127
128 return n;
129}
130
131static bool map_symbol__toggle_fold(struct map_symbol *ms)
132{
133 if (!ms)
134 return false;
135
136 if (!ms->has_children)
137 return false;
138
139 ms->unfolded = !ms->unfolded;
140 return true;
141}
142
143static void callchain_node__init_have_children_rb_tree(struct callchain_node *node)
144{
145 struct rb_node *nd = rb_first(&node->rb_root);
146
147 for (nd = rb_first(&node->rb_root); nd; nd = rb_next(nd)) {
148 struct callchain_node *child = rb_entry(nd, struct callchain_node, rb_node);
149 struct callchain_list *chain;
150 bool first = true;
151
152 list_for_each_entry(chain, &child->val, list) {
153 if (first) {
154 first = false;
155 chain->ms.has_children = chain->list.next != &child->val ||
156 !RB_EMPTY_ROOT(&child->rb_root);
157 } else
158 chain->ms.has_children = chain->list.next == &child->val &&
159 !RB_EMPTY_ROOT(&child->rb_root);
160 }
161
162 callchain_node__init_have_children_rb_tree(child);
163 }
164}
165
166static void callchain_node__init_have_children(struct callchain_node *node)
167{
168 struct callchain_list *chain;
169
170 list_for_each_entry(chain, &node->val, list)
171 chain->ms.has_children = !RB_EMPTY_ROOT(&node->rb_root);
172
173 callchain_node__init_have_children_rb_tree(node);
174}
175
176static void callchain__init_have_children(struct rb_root *root)
177{
178 struct rb_node *nd;
179
180 for (nd = rb_first(root); nd; nd = rb_next(nd)) {
181 struct callchain_node *node = rb_entry(nd, struct callchain_node, rb_node);
182 callchain_node__init_have_children(node);
183 }
184}
185
186static void hist_entry__init_have_children(struct hist_entry *he)
187{
188 if (!he->init_have_children) {
189 he->ms.has_children = !RB_EMPTY_ROOT(&he->sorted_chain);
190 callchain__init_have_children(&he->sorted_chain);
191 he->init_have_children = true;
192 }
193}
194
195static bool hist_browser__toggle_fold(struct hist_browser *browser)
196{
197 if (map_symbol__toggle_fold(browser->selection)) {
198 struct hist_entry *he = browser->he_selection;
199
200 hist_entry__init_have_children(he);
201 browser->hists->nr_entries -= he->nr_rows;
202
203 if (he->ms.unfolded)
204 he->nr_rows = callchain__count_rows(&he->sorted_chain);
205 else
206 he->nr_rows = 0;
207 browser->hists->nr_entries += he->nr_rows;
208 browser->b.nr_entries = browser->hists->nr_entries;
209
210 return true;
211 }
212
213 /* If it doesn't have children, no toggling performed */
214 return false;
215}
216
217static int callchain_node__set_folding_rb_tree(struct callchain_node *node, bool unfold)
218{
219 int n = 0;
220 struct rb_node *nd;
221
222 for (nd = rb_first(&node->rb_root); nd; nd = rb_next(nd)) {
223 struct callchain_node *child = rb_entry(nd, struct callchain_node, rb_node);
224 struct callchain_list *chain;
225 bool has_children = false;
226
227 list_for_each_entry(chain, &child->val, list) {
228 ++n;
229 map_symbol__set_folding(&chain->ms, unfold);
230 has_children = chain->ms.has_children;
231 }
232
233 if (has_children)
234 n += callchain_node__set_folding_rb_tree(child, unfold);
235 }
236
237 return n;
238}
239
240static int callchain_node__set_folding(struct callchain_node *node, bool unfold)
241{
242 struct callchain_list *chain;
243 bool has_children = false;
244 int n = 0;
245
246 list_for_each_entry(chain, &node->val, list) {
247 ++n;
248 map_symbol__set_folding(&chain->ms, unfold);
249 has_children = chain->ms.has_children;
250 }
251
252 if (has_children)
253 n += callchain_node__set_folding_rb_tree(node, unfold);
254
255 return n;
256}
257
258static int callchain__set_folding(struct rb_root *chain, bool unfold)
259{
260 struct rb_node *nd;
261 int n = 0;
262
263 for (nd = rb_first(chain); nd; nd = rb_next(nd)) {
264 struct callchain_node *node = rb_entry(nd, struct callchain_node, rb_node);
265 n += callchain_node__set_folding(node, unfold);
266 }
267
268 return n;
269}
270
271static void hist_entry__set_folding(struct hist_entry *he, bool unfold)
272{
273 hist_entry__init_have_children(he);
274 map_symbol__set_folding(&he->ms, unfold);
275
276 if (he->ms.has_children) {
277 int n = callchain__set_folding(&he->sorted_chain, unfold);
278 he->nr_rows = unfold ? n : 0;
279 } else
280 he->nr_rows = 0;
281}
282
283static void hists__set_folding(struct hists *hists, bool unfold)
284{
285 struct rb_node *nd;
286
287 hists->nr_entries = 0;
288
289 for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {
290 struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node);
291 hist_entry__set_folding(he, unfold);
292 hists->nr_entries += 1 + he->nr_rows;
293 }
294}
295
296static void hist_browser__set_folding(struct hist_browser *browser, bool unfold)
297{
298 hists__set_folding(browser->hists, unfold);
299 browser->b.nr_entries = browser->hists->nr_entries;
300 /* Go to the start, we may be way after valid entries after a collapse */
301 ui_browser__reset_index(&browser->b);
302}
303
304static void ui_browser__warn_lost_events(struct ui_browser *browser)
305{
306 ui_browser__warning(browser, 4,
307 "Events are being lost, check IO/CPU overload!\n\n"
308 "You may want to run 'perf' using a RT scheduler policy:\n\n"
309 " perf top -r 80\n\n"
310 "Or reduce the sampling frequency.");
311}
312
313static void hist_browser__update_pcnt_entries(struct hist_browser *hb);
314
315static int hist_browser__run(struct hist_browser *browser, const char *ev_name,
316 struct hist_browser_timer *hbt)
317{
318 int key;
319 char title[160];
320 int delay_secs = hbt ? hbt->refresh : 0;
321
322 browser->b.entries = &browser->hists->entries;
323 browser->b.nr_entries = browser->hists->nr_entries;
324 if (browser->min_pcnt)
325 browser->b.nr_entries = browser->nr_pcnt_entries;
326
327 hist_browser__refresh_dimensions(browser);
328 hists__browser_title(browser->hists, title, sizeof(title), ev_name);
329
330 if (ui_browser__show(&browser->b, title,
331 "Press '?' for help on key bindings") < 0)
332 return -1;
333
334 while (1) {
335 key = ui_browser__run(&browser->b, delay_secs);
336
337 switch (key) {
338 case K_TIMER: {
339 u64 nr_entries;
340 hbt->timer(hbt->arg);
341
342 if (browser->min_pcnt) {
343 hist_browser__update_pcnt_entries(browser);
344 nr_entries = browser->nr_pcnt_entries;
345 } else {
346 nr_entries = browser->hists->nr_entries;
347 }
348
349 ui_browser__update_nr_entries(&browser->b, nr_entries);
350
351 if (browser->hists->stats.nr_lost_warned !=
352 browser->hists->stats.nr_events[PERF_RECORD_LOST]) {
353 browser->hists->stats.nr_lost_warned =
354 browser->hists->stats.nr_events[PERF_RECORD_LOST];
355 ui_browser__warn_lost_events(&browser->b);
356 }
357
358 hists__browser_title(browser->hists, title, sizeof(title), ev_name);
359 ui_browser__show_title(&browser->b, title);
360 continue;
361 }
362 case 'D': { /* Debug */
363 static int seq;
364 struct hist_entry *h = rb_entry(browser->b.top,
365 struct hist_entry, rb_node);
366 ui_helpline__pop();
367 ui_helpline__fpush("%d: nr_ent=(%d,%d), height=%d, idx=%d, fve: idx=%d, row_off=%d, nrows=%d",
368 seq++, browser->b.nr_entries,
369 browser->hists->nr_entries,
370 browser->b.height,
371 browser->b.index,
372 browser->b.top_idx,
373 h->row_offset, h->nr_rows);
374 }
375 break;
376 case 'C':
377 /* Collapse the whole world. */
378 hist_browser__set_folding(browser, false);
379 break;
380 case 'E':
381 /* Expand the whole world. */
382 hist_browser__set_folding(browser, true);
383 break;
384 case K_ENTER:
385 if (hist_browser__toggle_fold(browser))
386 break;
387 /* fall thru */
388 default:
389 goto out;
390 }
391 }
392out:
393 ui_browser__hide(&browser->b);
394 return key;
395}
396
397static char *callchain_list__sym_name(struct callchain_list *cl,
398 char *bf, size_t bfsize, bool show_dso)
399{
400 int printed;
401
402 if (cl->ms.sym)
403 printed = scnprintf(bf, bfsize, "%s", cl->ms.sym->name);
404 else
405 printed = scnprintf(bf, bfsize, "%#" PRIx64, cl->ip);
406
407 if (show_dso)
408 scnprintf(bf + printed, bfsize - printed, " %s",
409 cl->ms.map ? cl->ms.map->dso->short_name : "unknown");
410
411 return bf;
412}
413
414#define LEVEL_OFFSET_STEP 3
415
416static int hist_browser__show_callchain_node_rb_tree(struct hist_browser *browser,
417 struct callchain_node *chain_node,
418 u64 total, int level,
419 unsigned short row,
420 off_t *row_offset,
421 bool *is_current_entry)
422{
423 struct rb_node *node;
424 int first_row = row, width, offset = level * LEVEL_OFFSET_STEP;
425 u64 new_total, remaining;
426
427 if (callchain_param.mode == CHAIN_GRAPH_REL)
428 new_total = chain_node->children_hit;
429 else
430 new_total = total;
431
432 remaining = new_total;
433 node = rb_first(&chain_node->rb_root);
434 while (node) {
435 struct callchain_node *child = rb_entry(node, struct callchain_node, rb_node);
436 struct rb_node *next = rb_next(node);
437 u64 cumul = callchain_cumul_hits(child);
438 struct callchain_list *chain;
439 char folded_sign = ' ';
440 int first = true;
441 int extra_offset = 0;
442
443 remaining -= cumul;
444
445 list_for_each_entry(chain, &child->val, list) {
446 char bf[1024], *alloc_str;
447 const char *str;
448 int color;
449 bool was_first = first;
450
451 if (first)
452 first = false;
453 else
454 extra_offset = LEVEL_OFFSET_STEP;
455
456 folded_sign = callchain_list__folded(chain);
457 if (*row_offset != 0) {
458 --*row_offset;
459 goto do_next;
460 }
461
462 alloc_str = NULL;
463 str = callchain_list__sym_name(chain, bf, sizeof(bf),
464 browser->show_dso);
465 if (was_first) {
466 double percent = cumul * 100.0 / new_total;
467
468 if (asprintf(&alloc_str, "%2.2f%% %s", percent, str) < 0)
469 str = "Not enough memory!";
470 else
471 str = alloc_str;
472 }
473
474 color = HE_COLORSET_NORMAL;
475 width = browser->b.width - (offset + extra_offset + 2);
476 if (ui_browser__is_current_entry(&browser->b, row)) {
477 browser->selection = &chain->ms;
478 color = HE_COLORSET_SELECTED;
479 *is_current_entry = true;
480 }
481
482 ui_browser__set_color(&browser->b, color);
483 ui_browser__gotorc(&browser->b, row, 0);
484 slsmg_write_nstring(" ", offset + extra_offset);
485 slsmg_printf("%c ", folded_sign);
486 slsmg_write_nstring(str, width);
487 free(alloc_str);
488
489 if (++row == browser->b.height)
490 goto out;
491do_next:
492 if (folded_sign == '+')
493 break;
494 }
495
496 if (folded_sign == '-') {
497 const int new_level = level + (extra_offset ? 2 : 1);
498 row += hist_browser__show_callchain_node_rb_tree(browser, child, new_total,
499 new_level, row, row_offset,
500 is_current_entry);
501 }
502 if (row == browser->b.height)
503 goto out;
504 node = next;
505 }
506out:
507 return row - first_row;
508}
509
510static int hist_browser__show_callchain_node(struct hist_browser *browser,
511 struct callchain_node *node,
512 int level, unsigned short row,
513 off_t *row_offset,
514 bool *is_current_entry)
515{
516 struct callchain_list *chain;
517 int first_row = row,
518 offset = level * LEVEL_OFFSET_STEP,
519 width = browser->b.width - offset;
520 char folded_sign = ' ';
521
522 list_for_each_entry(chain, &node->val, list) {
523 char bf[1024], *s;
524 int color;
525
526 folded_sign = callchain_list__folded(chain);
527
528 if (*row_offset != 0) {
529 --*row_offset;
530 continue;
531 }
532
533 color = HE_COLORSET_NORMAL;
534 if (ui_browser__is_current_entry(&browser->b, row)) {
535 browser->selection = &chain->ms;
536 color = HE_COLORSET_SELECTED;
537 *is_current_entry = true;
538 }
539
540 s = callchain_list__sym_name(chain, bf, sizeof(bf),
541 browser->show_dso);
542 ui_browser__gotorc(&browser->b, row, 0);
543 ui_browser__set_color(&browser->b, color);
544 slsmg_write_nstring(" ", offset);
545 slsmg_printf("%c ", folded_sign);
546 slsmg_write_nstring(s, width - 2);
547
548 if (++row == browser->b.height)
549 goto out;
550 }
551
552 if (folded_sign == '-')
553 row += hist_browser__show_callchain_node_rb_tree(browser, node,
554 browser->hists->stats.total_period,
555 level + 1, row,
556 row_offset,
557 is_current_entry);
558out:
559 return row - first_row;
560}
561
562static int hist_browser__show_callchain(struct hist_browser *browser,
563 struct rb_root *chain,
564 int level, unsigned short row,
565 off_t *row_offset,
566 bool *is_current_entry)
567{
568 struct rb_node *nd;
569 int first_row = row;
570
571 for (nd = rb_first(chain); nd; nd = rb_next(nd)) {
572 struct callchain_node *node = rb_entry(nd, struct callchain_node, rb_node);
573
574 row += hist_browser__show_callchain_node(browser, node, level,
575 row, row_offset,
576 is_current_entry);
577 if (row == browser->b.height)
578 break;
579 }
580
581 return row - first_row;
582}
583
584struct hpp_arg {
585 struct ui_browser *b;
586 char folded_sign;
587 bool current_entry;
588};
589
590static int __hpp__overhead_callback(struct perf_hpp *hpp, bool front)
591{
592 struct hpp_arg *arg = hpp->ptr;
593
594 if (arg->current_entry && arg->b->navkeypressed)
595 ui_browser__set_color(arg->b, HE_COLORSET_SELECTED);
596 else
597 ui_browser__set_color(arg->b, HE_COLORSET_NORMAL);
598
599 if (front) {
600 if (!symbol_conf.use_callchain)
601 return 0;
602
603 slsmg_printf("%c ", arg->folded_sign);
604 return 2;
605 }
606
607 return 0;
608}
609
610static int __hpp__color_callback(struct perf_hpp *hpp, bool front __maybe_unused)
611{
612 struct hpp_arg *arg = hpp->ptr;
613
614 if (!arg->current_entry || !arg->b->navkeypressed)
615 ui_browser__set_color(arg->b, HE_COLORSET_NORMAL);
616 return 0;
617}
618
619static int __hpp__slsmg_color_printf(struct perf_hpp *hpp, const char *fmt, ...)
620{
621 struct hpp_arg *arg = hpp->ptr;
622 int ret;
623 va_list args;
624 double percent;
625
626 va_start(args, fmt);
627 percent = va_arg(args, double);
628 va_end(args);
629
630 ui_browser__set_percent_color(arg->b, percent, arg->current_entry);
631
632 ret = scnprintf(hpp->buf, hpp->size, fmt, percent);
633 slsmg_printf("%s", hpp->buf);
634
635 advance_hpp(hpp, ret);
636 return ret;
637}
638
639#define __HPP_COLOR_PERCENT_FN(_type, _field, _cb) \
640static u64 __hpp_get_##_field(struct hist_entry *he) \
641{ \
642 return he->stat._field; \
643} \
644 \
645static int \
646hist_browser__hpp_color_##_type(struct perf_hpp_fmt *fmt __maybe_unused,\
647 struct perf_hpp *hpp, \
648 struct hist_entry *he) \
649{ \
650 return __hpp__fmt(hpp, he, __hpp_get_##_field, _cb, " %6.2f%%", \
651 __hpp__slsmg_color_printf, true); \
652}
653
654__HPP_COLOR_PERCENT_FN(overhead, period, __hpp__overhead_callback)
655__HPP_COLOR_PERCENT_FN(overhead_sys, period_sys, __hpp__color_callback)
656__HPP_COLOR_PERCENT_FN(overhead_us, period_us, __hpp__color_callback)
657__HPP_COLOR_PERCENT_FN(overhead_guest_sys, period_guest_sys, __hpp__color_callback)
658__HPP_COLOR_PERCENT_FN(overhead_guest_us, period_guest_us, __hpp__color_callback)
659
660#undef __HPP_COLOR_PERCENT_FN
661
662void hist_browser__init_hpp(void)
663{
664 perf_hpp__init();
665
666 perf_hpp__format[PERF_HPP__OVERHEAD].color =
667 hist_browser__hpp_color_overhead;
668 perf_hpp__format[PERF_HPP__OVERHEAD_SYS].color =
669 hist_browser__hpp_color_overhead_sys;
670 perf_hpp__format[PERF_HPP__OVERHEAD_US].color =
671 hist_browser__hpp_color_overhead_us;
672 perf_hpp__format[PERF_HPP__OVERHEAD_GUEST_SYS].color =
673 hist_browser__hpp_color_overhead_guest_sys;
674 perf_hpp__format[PERF_HPP__OVERHEAD_GUEST_US].color =
675 hist_browser__hpp_color_overhead_guest_us;
676}
677
678static int hist_browser__show_entry(struct hist_browser *browser,
679 struct hist_entry *entry,
680 unsigned short row)
681{
682 char s[256];
683 int printed = 0;
684 int width = browser->b.width;
685 char folded_sign = ' ';
686 bool current_entry = ui_browser__is_current_entry(&browser->b, row);
687 off_t row_offset = entry->row_offset;
688 bool first = true;
689 struct perf_hpp_fmt *fmt;
690
691 if (current_entry) {
692 browser->he_selection = entry;
693 browser->selection = &entry->ms;
694 }
695
696 if (symbol_conf.use_callchain) {
697 hist_entry__init_have_children(entry);
698 folded_sign = hist_entry__folded(entry);
699 }
700
701 if (row_offset == 0) {
702 struct hpp_arg arg = {
703 .b = &browser->b,
704 .folded_sign = folded_sign,
705 .current_entry = current_entry,
706 };
707 struct perf_hpp hpp = {
708 .buf = s,
709 .size = sizeof(s),
710 .ptr = &arg,
711 };
712
713 ui_browser__gotorc(&browser->b, row, 0);
714
715 perf_hpp__for_each_format(fmt) {
716 if (!first) {
717 slsmg_printf(" ");
718 width -= 2;
719 }
720 first = false;
721
722 if (fmt->color) {
723 width -= fmt->color(fmt, &hpp, entry);
724 } else {
725 width -= fmt->entry(fmt, &hpp, entry);
726 slsmg_printf("%s", s);
727 }
728 }
729
730 /* The scroll bar isn't being used */
731 if (!browser->b.navkeypressed)
732 width += 1;
733
734 hist_entry__sort_snprintf(entry, s, sizeof(s), browser->hists);
735 slsmg_write_nstring(s, width);
736 ++row;
737 ++printed;
738 } else
739 --row_offset;
740
741 if (folded_sign == '-' && row != browser->b.height) {
742 printed += hist_browser__show_callchain(browser, &entry->sorted_chain,
743 1, row, &row_offset,
744 ¤t_entry);
745 if (current_entry)
746 browser->he_selection = entry;
747 }
748
749 return printed;
750}
751
752static void ui_browser__hists_init_top(struct ui_browser *browser)
753{
754 if (browser->top == NULL) {
755 struct hist_browser *hb;
756
757 hb = container_of(browser, struct hist_browser, b);
758 browser->top = rb_first(&hb->hists->entries);
759 }
760}
761
762static unsigned int hist_browser__refresh(struct ui_browser *browser)
763{
764 unsigned row = 0;
765 struct rb_node *nd;
766 struct hist_browser *hb = container_of(browser, struct hist_browser, b);
767
768 ui_browser__hists_init_top(browser);
769
770 for (nd = browser->top; nd; nd = rb_next(nd)) {
771 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
772 float percent = h->stat.period * 100.0 /
773 hb->hists->stats.total_period;
774
775 if (h->filtered)
776 continue;
777
778 if (percent < hb->min_pcnt)
779 continue;
780
781 row += hist_browser__show_entry(hb, h, row);
782 if (row == browser->height)
783 break;
784 }
785
786 return row;
787}
788
789static struct rb_node *hists__filter_entries(struct rb_node *nd,
790 struct hists *hists,
791 float min_pcnt)
792{
793 while (nd != NULL) {
794 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
795 float percent = h->stat.period * 100.0 /
796 hists->stats.total_period;
797
798 if (percent < min_pcnt)
799 return NULL;
800
801 if (!h->filtered)
802 return nd;
803
804 nd = rb_next(nd);
805 }
806
807 return NULL;
808}
809
810static struct rb_node *hists__filter_prev_entries(struct rb_node *nd,
811 struct hists *hists,
812 float min_pcnt)
813{
814 while (nd != NULL) {
815 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
816 float percent = h->stat.period * 100.0 /
817 hists->stats.total_period;
818
819 if (!h->filtered && percent >= min_pcnt)
820 return nd;
821
822 nd = rb_prev(nd);
823 }
824
825 return NULL;
826}
827
828static void ui_browser__hists_seek(struct ui_browser *browser,
829 off_t offset, int whence)
830{
831 struct hist_entry *h;
832 struct rb_node *nd;
833 bool first = true;
834 struct hist_browser *hb;
835
836 hb = container_of(browser, struct hist_browser, b);
837
838 if (browser->nr_entries == 0)
839 return;
840
841 ui_browser__hists_init_top(browser);
842
843 switch (whence) {
844 case SEEK_SET:
845 nd = hists__filter_entries(rb_first(browser->entries),
846 hb->hists, hb->min_pcnt);
847 break;
848 case SEEK_CUR:
849 nd = browser->top;
850 goto do_offset;
851 case SEEK_END:
852 nd = hists__filter_prev_entries(rb_last(browser->entries),
853 hb->hists, hb->min_pcnt);
854 first = false;
855 break;
856 default:
857 return;
858 }
859
860 /*
861 * Moves not relative to the first visible entry invalidates its
862 * row_offset:
863 */
864 h = rb_entry(browser->top, struct hist_entry, rb_node);
865 h->row_offset = 0;
866
867 /*
868 * Here we have to check if nd is expanded (+), if it is we can't go
869 * the next top level hist_entry, instead we must compute an offset of
870 * what _not_ to show and not change the first visible entry.
871 *
872 * This offset increments when we are going from top to bottom and
873 * decreases when we're going from bottom to top.
874 *
875 * As we don't have backpointers to the top level in the callchains
876 * structure, we need to always print the whole hist_entry callchain,
877 * skipping the first ones that are before the first visible entry
878 * and stop when we printed enough lines to fill the screen.
879 */
880do_offset:
881 if (offset > 0) {
882 do {
883 h = rb_entry(nd, struct hist_entry, rb_node);
884 if (h->ms.unfolded) {
885 u16 remaining = h->nr_rows - h->row_offset;
886 if (offset > remaining) {
887 offset -= remaining;
888 h->row_offset = 0;
889 } else {
890 h->row_offset += offset;
891 offset = 0;
892 browser->top = nd;
893 break;
894 }
895 }
896 nd = hists__filter_entries(rb_next(nd), hb->hists,
897 hb->min_pcnt);
898 if (nd == NULL)
899 break;
900 --offset;
901 browser->top = nd;
902 } while (offset != 0);
903 } else if (offset < 0) {
904 while (1) {
905 h = rb_entry(nd, struct hist_entry, rb_node);
906 if (h->ms.unfolded) {
907 if (first) {
908 if (-offset > h->row_offset) {
909 offset += h->row_offset;
910 h->row_offset = 0;
911 } else {
912 h->row_offset += offset;
913 offset = 0;
914 browser->top = nd;
915 break;
916 }
917 } else {
918 if (-offset > h->nr_rows) {
919 offset += h->nr_rows;
920 h->row_offset = 0;
921 } else {
922 h->row_offset = h->nr_rows + offset;
923 offset = 0;
924 browser->top = nd;
925 break;
926 }
927 }
928 }
929
930 nd = hists__filter_prev_entries(rb_prev(nd), hb->hists,
931 hb->min_pcnt);
932 if (nd == NULL)
933 break;
934 ++offset;
935 browser->top = nd;
936 if (offset == 0) {
937 /*
938 * Last unfiltered hist_entry, check if it is
939 * unfolded, if it is then we should have
940 * row_offset at its last entry.
941 */
942 h = rb_entry(nd, struct hist_entry, rb_node);
943 if (h->ms.unfolded)
944 h->row_offset = h->nr_rows;
945 break;
946 }
947 first = false;
948 }
949 } else {
950 browser->top = nd;
951 h = rb_entry(nd, struct hist_entry, rb_node);
952 h->row_offset = 0;
953 }
954}
955
956static int hist_browser__fprintf_callchain_node_rb_tree(struct hist_browser *browser,
957 struct callchain_node *chain_node,
958 u64 total, int level,
959 FILE *fp)
960{
961 struct rb_node *node;
962 int offset = level * LEVEL_OFFSET_STEP;
963 u64 new_total, remaining;
964 int printed = 0;
965
966 if (callchain_param.mode == CHAIN_GRAPH_REL)
967 new_total = chain_node->children_hit;
968 else
969 new_total = total;
970
971 remaining = new_total;
972 node = rb_first(&chain_node->rb_root);
973 while (node) {
974 struct callchain_node *child = rb_entry(node, struct callchain_node, rb_node);
975 struct rb_node *next = rb_next(node);
976 u64 cumul = callchain_cumul_hits(child);
977 struct callchain_list *chain;
978 char folded_sign = ' ';
979 int first = true;
980 int extra_offset = 0;
981
982 remaining -= cumul;
983
984 list_for_each_entry(chain, &child->val, list) {
985 char bf[1024], *alloc_str;
986 const char *str;
987 bool was_first = first;
988
989 if (first)
990 first = false;
991 else
992 extra_offset = LEVEL_OFFSET_STEP;
993
994 folded_sign = callchain_list__folded(chain);
995
996 alloc_str = NULL;
997 str = callchain_list__sym_name(chain, bf, sizeof(bf),
998 browser->show_dso);
999 if (was_first) {
1000 double percent = cumul * 100.0 / new_total;
1001
1002 if (asprintf(&alloc_str, "%2.2f%% %s", percent, str) < 0)
1003 str = "Not enough memory!";
1004 else
1005 str = alloc_str;
1006 }
1007
1008 printed += fprintf(fp, "%*s%c %s\n", offset + extra_offset, " ", folded_sign, str);
1009 free(alloc_str);
1010 if (folded_sign == '+')
1011 break;
1012 }
1013
1014 if (folded_sign == '-') {
1015 const int new_level = level + (extra_offset ? 2 : 1);
1016 printed += hist_browser__fprintf_callchain_node_rb_tree(browser, child, new_total,
1017 new_level, fp);
1018 }
1019
1020 node = next;
1021 }
1022
1023 return printed;
1024}
1025
1026static int hist_browser__fprintf_callchain_node(struct hist_browser *browser,
1027 struct callchain_node *node,
1028 int level, FILE *fp)
1029{
1030 struct callchain_list *chain;
1031 int offset = level * LEVEL_OFFSET_STEP;
1032 char folded_sign = ' ';
1033 int printed = 0;
1034
1035 list_for_each_entry(chain, &node->val, list) {
1036 char bf[1024], *s;
1037
1038 folded_sign = callchain_list__folded(chain);
1039 s = callchain_list__sym_name(chain, bf, sizeof(bf), browser->show_dso);
1040 printed += fprintf(fp, "%*s%c %s\n", offset, " ", folded_sign, s);
1041 }
1042
1043 if (folded_sign == '-')
1044 printed += hist_browser__fprintf_callchain_node_rb_tree(browser, node,
1045 browser->hists->stats.total_period,
1046 level + 1, fp);
1047 return printed;
1048}
1049
1050static int hist_browser__fprintf_callchain(struct hist_browser *browser,
1051 struct rb_root *chain, int level, FILE *fp)
1052{
1053 struct rb_node *nd;
1054 int printed = 0;
1055
1056 for (nd = rb_first(chain); nd; nd = rb_next(nd)) {
1057 struct callchain_node *node = rb_entry(nd, struct callchain_node, rb_node);
1058
1059 printed += hist_browser__fprintf_callchain_node(browser, node, level, fp);
1060 }
1061
1062 return printed;
1063}
1064
1065static int hist_browser__fprintf_entry(struct hist_browser *browser,
1066 struct hist_entry *he, FILE *fp)
1067{
1068 char s[8192];
1069 double percent;
1070 int printed = 0;
1071 char folded_sign = ' ';
1072
1073 if (symbol_conf.use_callchain)
1074 folded_sign = hist_entry__folded(he);
1075
1076 hist_entry__sort_snprintf(he, s, sizeof(s), browser->hists);
1077 percent = (he->stat.period * 100.0) / browser->hists->stats.total_period;
1078
1079 if (symbol_conf.use_callchain)
1080 printed += fprintf(fp, "%c ", folded_sign);
1081
1082 printed += fprintf(fp, " %5.2f%%", percent);
1083
1084 if (symbol_conf.show_nr_samples)
1085 printed += fprintf(fp, " %11u", he->stat.nr_events);
1086
1087 if (symbol_conf.show_total_period)
1088 printed += fprintf(fp, " %12" PRIu64, he->stat.period);
1089
1090 printed += fprintf(fp, "%s\n", rtrim(s));
1091
1092 if (folded_sign == '-')
1093 printed += hist_browser__fprintf_callchain(browser, &he->sorted_chain, 1, fp);
1094
1095 return printed;
1096}
1097
1098static int hist_browser__fprintf(struct hist_browser *browser, FILE *fp)
1099{
1100 struct rb_node *nd = hists__filter_entries(rb_first(browser->b.entries),
1101 browser->hists,
1102 browser->min_pcnt);
1103 int printed = 0;
1104
1105 while (nd) {
1106 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
1107
1108 printed += hist_browser__fprintf_entry(browser, h, fp);
1109 nd = hists__filter_entries(rb_next(nd), browser->hists,
1110 browser->min_pcnt);
1111 }
1112
1113 return printed;
1114}
1115
1116static int hist_browser__dump(struct hist_browser *browser)
1117{
1118 char filename[64];
1119 FILE *fp;
1120
1121 while (1) {
1122 scnprintf(filename, sizeof(filename), "perf.hist.%d", browser->print_seq);
1123 if (access(filename, F_OK))
1124 break;
1125 /*
1126 * XXX: Just an arbitrary lazy upper limit
1127 */
1128 if (++browser->print_seq == 8192) {
1129 ui_helpline__fpush("Too many perf.hist.N files, nothing written!");
1130 return -1;
1131 }
1132 }
1133
1134 fp = fopen(filename, "w");
1135 if (fp == NULL) {
1136 char bf[64];
1137 const char *err = strerror_r(errno, bf, sizeof(bf));
1138 ui_helpline__fpush("Couldn't write to %s: %s", filename, err);
1139 return -1;
1140 }
1141
1142 ++browser->print_seq;
1143 hist_browser__fprintf(browser, fp);
1144 fclose(fp);
1145 ui_helpline__fpush("%s written!", filename);
1146
1147 return 0;
1148}
1149
1150static struct hist_browser *hist_browser__new(struct hists *hists)
1151{
1152 struct hist_browser *browser = zalloc(sizeof(*browser));
1153
1154 if (browser) {
1155 browser->hists = hists;
1156 browser->b.refresh = hist_browser__refresh;
1157 browser->b.seek = ui_browser__hists_seek;
1158 browser->b.use_navkeypressed = true;
1159 }
1160
1161 return browser;
1162}
1163
1164static void hist_browser__delete(struct hist_browser *browser)
1165{
1166 free(browser);
1167}
1168
1169static struct hist_entry *hist_browser__selected_entry(struct hist_browser *browser)
1170{
1171 return browser->he_selection;
1172}
1173
1174static struct thread *hist_browser__selected_thread(struct hist_browser *browser)
1175{
1176 return browser->he_selection->thread;
1177}
1178
1179static int hists__browser_title(struct hists *hists, char *bf, size_t size,
1180 const char *ev_name)
1181{
1182 char unit;
1183 int printed;
1184 const struct dso *dso = hists->dso_filter;
1185 const struct thread *thread = hists->thread_filter;
1186 unsigned long nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE];
1187 u64 nr_events = hists->stats.total_period;
1188 struct perf_evsel *evsel = hists_to_evsel(hists);
1189 char buf[512];
1190 size_t buflen = sizeof(buf);
1191
1192 if (perf_evsel__is_group_event(evsel)) {
1193 struct perf_evsel *pos;
1194
1195 perf_evsel__group_desc(evsel, buf, buflen);
1196 ev_name = buf;
1197
1198 for_each_group_member(pos, evsel) {
1199 nr_samples += pos->hists.stats.nr_events[PERF_RECORD_SAMPLE];
1200 nr_events += pos->hists.stats.total_period;
1201 }
1202 }
1203
1204 nr_samples = convert_unit(nr_samples, &unit);
1205 printed = scnprintf(bf, size,
1206 "Samples: %lu%c of event '%s', Event count (approx.): %lu",
1207 nr_samples, unit, ev_name, nr_events);
1208
1209
1210 if (hists->uid_filter_str)
1211 printed += snprintf(bf + printed, size - printed,
1212 ", UID: %s", hists->uid_filter_str);
1213 if (thread)
1214 printed += scnprintf(bf + printed, size - printed,
1215 ", Thread: %s(%d)",
1216 (thread->comm_set ? thread__comm_str(thread) : ""),
1217 thread->tid);
1218 if (dso)
1219 printed += scnprintf(bf + printed, size - printed,
1220 ", DSO: %s", dso->short_name);
1221 return printed;
1222}
1223
1224static inline void free_popup_options(char **options, int n)
1225{
1226 int i;
1227
1228 for (i = 0; i < n; ++i)
1229 zfree(&options[i]);
1230}
1231
1232/* Check whether the browser is for 'top' or 'report' */
1233static inline bool is_report_browser(void *timer)
1234{
1235 return timer == NULL;
1236}
1237
1238/*
1239 * Only runtime switching of perf data file will make "input_name" point
1240 * to a malloced buffer. So add "is_input_name_malloced" flag to decide
1241 * whether we need to call free() for current "input_name" during the switch.
1242 */
1243static bool is_input_name_malloced = false;
1244
1245static int switch_data_file(void)
1246{
1247 char *pwd, *options[32], *abs_path[32], *tmp;
1248 DIR *pwd_dir;
1249 int nr_options = 0, choice = -1, ret = -1;
1250 struct dirent *dent;
1251
1252 pwd = getenv("PWD");
1253 if (!pwd)
1254 return ret;
1255
1256 pwd_dir = opendir(pwd);
1257 if (!pwd_dir)
1258 return ret;
1259
1260 memset(options, 0, sizeof(options));
1261 memset(options, 0, sizeof(abs_path));
1262
1263 while ((dent = readdir(pwd_dir))) {
1264 char path[PATH_MAX];
1265 u64 magic;
1266 char *name = dent->d_name;
1267 FILE *file;
1268
1269 if (!(dent->d_type == DT_REG))
1270 continue;
1271
1272 snprintf(path, sizeof(path), "%s/%s", pwd, name);
1273
1274 file = fopen(path, "r");
1275 if (!file)
1276 continue;
1277
1278 if (fread(&magic, 1, 8, file) < 8)
1279 goto close_file_and_continue;
1280
1281 if (is_perf_magic(magic)) {
1282 options[nr_options] = strdup(name);
1283 if (!options[nr_options])
1284 goto close_file_and_continue;
1285
1286 abs_path[nr_options] = strdup(path);
1287 if (!abs_path[nr_options]) {
1288 zfree(&options[nr_options]);
1289 ui__warning("Can't search all data files due to memory shortage.\n");
1290 fclose(file);
1291 break;
1292 }
1293
1294 nr_options++;
1295 }
1296
1297close_file_and_continue:
1298 fclose(file);
1299 if (nr_options >= 32) {
1300 ui__warning("Too many perf data files in PWD!\n"
1301 "Only the first 32 files will be listed.\n");
1302 break;
1303 }
1304 }
1305 closedir(pwd_dir);
1306
1307 if (nr_options) {
1308 choice = ui__popup_menu(nr_options, options);
1309 if (choice < nr_options && choice >= 0) {
1310 tmp = strdup(abs_path[choice]);
1311 if (tmp) {
1312 if (is_input_name_malloced)
1313 free((void *)input_name);
1314 input_name = tmp;
1315 is_input_name_malloced = true;
1316 ret = 0;
1317 } else
1318 ui__warning("Data switch failed due to memory shortage!\n");
1319 }
1320 }
1321
1322 free_popup_options(options, nr_options);
1323 free_popup_options(abs_path, nr_options);
1324 return ret;
1325}
1326
1327static void hist_browser__update_pcnt_entries(struct hist_browser *hb)
1328{
1329 u64 nr_entries = 0;
1330 struct rb_node *nd = rb_first(&hb->hists->entries);
1331
1332 while (nd) {
1333 nr_entries++;
1334 nd = hists__filter_entries(rb_next(nd), hb->hists,
1335 hb->min_pcnt);
1336 }
1337
1338 hb->nr_pcnt_entries = nr_entries;
1339}
1340
1341static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
1342 const char *helpline, const char *ev_name,
1343 bool left_exits,
1344 struct hist_browser_timer *hbt,
1345 float min_pcnt,
1346 struct perf_session_env *env)
1347{
1348 struct hists *hists = &evsel->hists;
1349 struct hist_browser *browser = hist_browser__new(hists);
1350 struct branch_info *bi;
1351 struct pstack *fstack;
1352 char *options[16];
1353 int nr_options = 0;
1354 int key = -1;
1355 char buf[64];
1356 char script_opt[64];
1357 int delay_secs = hbt ? hbt->refresh : 0;
1358
1359#define HIST_BROWSER_HELP_COMMON \
1360 "h/?/F1 Show this window\n" \
1361 "UP/DOWN/PGUP\n" \
1362 "PGDN/SPACE Navigate\n" \
1363 "q/ESC/CTRL+C Exit browser\n\n" \
1364 "For multiple event sessions:\n\n" \
1365 "TAB/UNTAB Switch events\n\n" \
1366 "For symbolic views (--sort has sym):\n\n" \
1367 "-> Zoom into DSO/Threads & Annotate current symbol\n" \
1368 "<- Zoom out\n" \
1369 "a Annotate current symbol\n" \
1370 "C Collapse all callchains\n" \
1371 "d Zoom into current DSO\n" \
1372 "E Expand all callchains\n" \
1373
1374 /* help messages are sorted by lexical order of the hotkey */
1375 const char report_help[] = HIST_BROWSER_HELP_COMMON
1376 "i Show header information\n"
1377 "P Print histograms to perf.hist.N\n"
1378 "r Run available scripts\n"
1379 "s Switch to another data file in PWD\n"
1380 "t Zoom into current Thread\n"
1381 "V Verbose (DSO names in callchains, etc)\n"
1382 "/ Filter symbol by name";
1383 const char top_help[] = HIST_BROWSER_HELP_COMMON
1384 "P Print histograms to perf.hist.N\n"
1385 "t Zoom into current Thread\n"
1386 "V Verbose (DSO names in callchains, etc)\n"
1387 "/ Filter symbol by name";
1388
1389 if (browser == NULL)
1390 return -1;
1391
1392 if (min_pcnt) {
1393 browser->min_pcnt = min_pcnt;
1394 hist_browser__update_pcnt_entries(browser);
1395 }
1396
1397 fstack = pstack__new(2);
1398 if (fstack == NULL)
1399 goto out;
1400
1401 ui_helpline__push(helpline);
1402
1403 memset(options, 0, sizeof(options));
1404
1405 while (1) {
1406 const struct thread *thread = NULL;
1407 const struct dso *dso = NULL;
1408 int choice = 0,
1409 annotate = -2, zoom_dso = -2, zoom_thread = -2,
1410 annotate_f = -2, annotate_t = -2, browse_map = -2;
1411 int scripts_comm = -2, scripts_symbol = -2,
1412 scripts_all = -2, switch_data = -2;
1413
1414 nr_options = 0;
1415
1416 key = hist_browser__run(browser, ev_name, hbt);
1417
1418 if (browser->he_selection != NULL) {
1419 thread = hist_browser__selected_thread(browser);
1420 dso = browser->selection->map ? browser->selection->map->dso : NULL;
1421 }
1422 switch (key) {
1423 case K_TAB:
1424 case K_UNTAB:
1425 if (nr_events == 1)
1426 continue;
1427 /*
1428 * Exit the browser, let hists__browser_tree
1429 * go to the next or previous
1430 */
1431 goto out_free_stack;
1432 case 'a':
1433 if (!sort__has_sym) {
1434 ui_browser__warning(&browser->b, delay_secs * 2,
1435 "Annotation is only available for symbolic views, "
1436 "include \"sym*\" in --sort to use it.");
1437 continue;
1438 }
1439
1440 if (browser->selection == NULL ||
1441 browser->selection->sym == NULL ||
1442 browser->selection->map->dso->annotate_warned)
1443 continue;
1444 goto do_annotate;
1445 case 'P':
1446 hist_browser__dump(browser);
1447 continue;
1448 case 'd':
1449 goto zoom_dso;
1450 case 'V':
1451 browser->show_dso = !browser->show_dso;
1452 continue;
1453 case 't':
1454 goto zoom_thread;
1455 case '/':
1456 if (ui_browser__input_window("Symbol to show",
1457 "Please enter the name of symbol you want to see",
1458 buf, "ENTER: OK, ESC: Cancel",
1459 delay_secs * 2) == K_ENTER) {
1460 hists->symbol_filter_str = *buf ? buf : NULL;
1461 hists__filter_by_symbol(hists);
1462 hist_browser__reset(browser);
1463 }
1464 continue;
1465 case 'r':
1466 if (is_report_browser(hbt))
1467 goto do_scripts;
1468 continue;
1469 case 's':
1470 if (is_report_browser(hbt))
1471 goto do_data_switch;
1472 continue;
1473 case 'i':
1474 /* env->arch is NULL for live-mode (i.e. perf top) */
1475 if (env->arch)
1476 tui__header_window(env);
1477 continue;
1478 case K_F1:
1479 case 'h':
1480 case '?':
1481 ui_browser__help_window(&browser->b,
1482 is_report_browser(hbt) ? report_help : top_help);
1483 continue;
1484 case K_ENTER:
1485 case K_RIGHT:
1486 /* menu */
1487 break;
1488 case K_LEFT: {
1489 const void *top;
1490
1491 if (pstack__empty(fstack)) {
1492 /*
1493 * Go back to the perf_evsel_menu__run or other user
1494 */
1495 if (left_exits)
1496 goto out_free_stack;
1497 continue;
1498 }
1499 top = pstack__pop(fstack);
1500 if (top == &browser->hists->dso_filter)
1501 goto zoom_out_dso;
1502 if (top == &browser->hists->thread_filter)
1503 goto zoom_out_thread;
1504 continue;
1505 }
1506 case K_ESC:
1507 if (!left_exits &&
1508 !ui_browser__dialog_yesno(&browser->b,
1509 "Do you really want to exit?"))
1510 continue;
1511 /* Fall thru */
1512 case 'q':
1513 case CTRL('c'):
1514 goto out_free_stack;
1515 default:
1516 continue;
1517 }
1518
1519 if (!sort__has_sym)
1520 goto add_exit_option;
1521
1522 if (sort__mode == SORT_MODE__BRANCH) {
1523 bi = browser->he_selection->branch_info;
1524 if (browser->selection != NULL &&
1525 bi &&
1526 bi->from.sym != NULL &&
1527 !bi->from.map->dso->annotate_warned &&
1528 asprintf(&options[nr_options], "Annotate %s",
1529 bi->from.sym->name) > 0)
1530 annotate_f = nr_options++;
1531
1532 if (browser->selection != NULL &&
1533 bi &&
1534 bi->to.sym != NULL &&
1535 !bi->to.map->dso->annotate_warned &&
1536 (bi->to.sym != bi->from.sym ||
1537 bi->to.map->dso != bi->from.map->dso) &&
1538 asprintf(&options[nr_options], "Annotate %s",
1539 bi->to.sym->name) > 0)
1540 annotate_t = nr_options++;
1541 } else {
1542
1543 if (browser->selection != NULL &&
1544 browser->selection->sym != NULL &&
1545 !browser->selection->map->dso->annotate_warned &&
1546 asprintf(&options[nr_options], "Annotate %s",
1547 browser->selection->sym->name) > 0)
1548 annotate = nr_options++;
1549 }
1550
1551 if (thread != NULL &&
1552 asprintf(&options[nr_options], "Zoom %s %s(%d) thread",
1553 (browser->hists->thread_filter ? "out of" : "into"),
1554 (thread->comm_set ? thread__comm_str(thread) : ""),
1555 thread->tid) > 0)
1556 zoom_thread = nr_options++;
1557
1558 if (dso != NULL &&
1559 asprintf(&options[nr_options], "Zoom %s %s DSO",
1560 (browser->hists->dso_filter ? "out of" : "into"),
1561 (dso->kernel ? "the Kernel" : dso->short_name)) > 0)
1562 zoom_dso = nr_options++;
1563
1564 if (browser->selection != NULL &&
1565 browser->selection->map != NULL &&
1566 asprintf(&options[nr_options], "Browse map details") > 0)
1567 browse_map = nr_options++;
1568
1569 /* perf script support */
1570 if (browser->he_selection) {
1571 struct symbol *sym;
1572
1573 if (asprintf(&options[nr_options], "Run scripts for samples of thread [%s]",
1574 thread__comm_str(browser->he_selection->thread)) > 0)
1575 scripts_comm = nr_options++;
1576
1577 sym = browser->he_selection->ms.sym;
1578 if (sym && sym->namelen &&
1579 asprintf(&options[nr_options], "Run scripts for samples of symbol [%s]",
1580 sym->name) > 0)
1581 scripts_symbol = nr_options++;
1582 }
1583
1584 if (asprintf(&options[nr_options], "Run scripts for all samples") > 0)
1585 scripts_all = nr_options++;
1586
1587 if (is_report_browser(hbt) && asprintf(&options[nr_options],
1588 "Switch to another data file in PWD") > 0)
1589 switch_data = nr_options++;
1590add_exit_option:
1591 options[nr_options++] = (char *)"Exit";
1592retry_popup_menu:
1593 choice = ui__popup_menu(nr_options, options);
1594
1595 if (choice == nr_options - 1)
1596 break;
1597
1598 if (choice == -1) {
1599 free_popup_options(options, nr_options - 1);
1600 continue;
1601 }
1602
1603 if (choice == annotate || choice == annotate_t || choice == annotate_f) {
1604 struct hist_entry *he;
1605 int err;
1606do_annotate:
1607 if (!objdump_path && perf_session_env__lookup_objdump(env))
1608 continue;
1609
1610 he = hist_browser__selected_entry(browser);
1611 if (he == NULL)
1612 continue;
1613
1614 /*
1615 * we stash the branch_info symbol + map into the
1616 * the ms so we don't have to rewrite all the annotation
1617 * code to use branch_info.
1618 * in branch mode, the ms struct is not used
1619 */
1620 if (choice == annotate_f) {
1621 he->ms.sym = he->branch_info->from.sym;
1622 he->ms.map = he->branch_info->from.map;
1623 } else if (choice == annotate_t) {
1624 he->ms.sym = he->branch_info->to.sym;
1625 he->ms.map = he->branch_info->to.map;
1626 }
1627
1628 /*
1629 * Don't let this be freed, say, by hists__decay_entry.
1630 */
1631 he->used = true;
1632 err = hist_entry__tui_annotate(he, evsel, hbt);
1633 he->used = false;
1634 /*
1635 * offer option to annotate the other branch source or target
1636 * (if they exists) when returning from annotate
1637 */
1638 if ((err == 'q' || err == CTRL('c'))
1639 && annotate_t != -2 && annotate_f != -2)
1640 goto retry_popup_menu;
1641
1642 ui_browser__update_nr_entries(&browser->b, browser->hists->nr_entries);
1643 if (err)
1644 ui_browser__handle_resize(&browser->b);
1645
1646 } else if (choice == browse_map)
1647 map__browse(browser->selection->map);
1648 else if (choice == zoom_dso) {
1649zoom_dso:
1650 if (browser->hists->dso_filter) {
1651 pstack__remove(fstack, &browser->hists->dso_filter);
1652zoom_out_dso:
1653 ui_helpline__pop();
1654 browser->hists->dso_filter = NULL;
1655 sort_dso.elide = false;
1656 } else {
1657 if (dso == NULL)
1658 continue;
1659 ui_helpline__fpush("To zoom out press <- or -> + \"Zoom out of %s DSO\"",
1660 dso->kernel ? "the Kernel" : dso->short_name);
1661 browser->hists->dso_filter = dso;
1662 sort_dso.elide = true;
1663 pstack__push(fstack, &browser->hists->dso_filter);
1664 }
1665 hists__filter_by_dso(hists);
1666 hist_browser__reset(browser);
1667 } else if (choice == zoom_thread) {
1668zoom_thread:
1669 if (browser->hists->thread_filter) {
1670 pstack__remove(fstack, &browser->hists->thread_filter);
1671zoom_out_thread:
1672 ui_helpline__pop();
1673 browser->hists->thread_filter = NULL;
1674 sort_thread.elide = false;
1675 } else {
1676 ui_helpline__fpush("To zoom out press <- or -> + \"Zoom out of %s(%d) thread\"",
1677 thread->comm_set ? thread__comm_str(thread) : "",
1678 thread->tid);
1679 browser->hists->thread_filter = thread;
1680 sort_thread.elide = true;
1681 pstack__push(fstack, &browser->hists->thread_filter);
1682 }
1683 hists__filter_by_thread(hists);
1684 hist_browser__reset(browser);
1685 }
1686 /* perf scripts support */
1687 else if (choice == scripts_all || choice == scripts_comm ||
1688 choice == scripts_symbol) {
1689do_scripts:
1690 memset(script_opt, 0, 64);
1691
1692 if (choice == scripts_comm)
1693 sprintf(script_opt, " -c %s ", thread__comm_str(browser->he_selection->thread));
1694
1695 if (choice == scripts_symbol)
1696 sprintf(script_opt, " -S %s ", browser->he_selection->ms.sym->name);
1697
1698 script_browse(script_opt);
1699 }
1700 /* Switch to another data file */
1701 else if (choice == switch_data) {
1702do_data_switch:
1703 if (!switch_data_file()) {
1704 key = K_SWITCH_INPUT_DATA;
1705 break;
1706 } else
1707 ui__warning("Won't switch the data files due to\n"
1708 "no valid data file get selected!\n");
1709 }
1710 }
1711out_free_stack:
1712 pstack__delete(fstack);
1713out:
1714 hist_browser__delete(browser);
1715 free_popup_options(options, nr_options - 1);
1716 return key;
1717}
1718
1719struct perf_evsel_menu {
1720 struct ui_browser b;
1721 struct perf_evsel *selection;
1722 bool lost_events, lost_events_warned;
1723 float min_pcnt;
1724 struct perf_session_env *env;
1725};
1726
1727static void perf_evsel_menu__write(struct ui_browser *browser,
1728 void *entry, int row)
1729{
1730 struct perf_evsel_menu *menu = container_of(browser,
1731 struct perf_evsel_menu, b);
1732 struct perf_evsel *evsel = list_entry(entry, struct perf_evsel, node);
1733 bool current_entry = ui_browser__is_current_entry(browser, row);
1734 unsigned long nr_events = evsel->hists.stats.nr_events[PERF_RECORD_SAMPLE];
1735 const char *ev_name = perf_evsel__name(evsel);
1736 char bf[256], unit;
1737 const char *warn = " ";
1738 size_t printed;
1739
1740 ui_browser__set_color(browser, current_entry ? HE_COLORSET_SELECTED :
1741 HE_COLORSET_NORMAL);
1742
1743 if (perf_evsel__is_group_event(evsel)) {
1744 struct perf_evsel *pos;
1745
1746 ev_name = perf_evsel__group_name(evsel);
1747
1748 for_each_group_member(pos, evsel) {
1749 nr_events += pos->hists.stats.nr_events[PERF_RECORD_SAMPLE];
1750 }
1751 }
1752
1753 nr_events = convert_unit(nr_events, &unit);
1754 printed = scnprintf(bf, sizeof(bf), "%lu%c%s%s", nr_events,
1755 unit, unit == ' ' ? "" : " ", ev_name);
1756 slsmg_printf("%s", bf);
1757
1758 nr_events = evsel->hists.stats.nr_events[PERF_RECORD_LOST];
1759 if (nr_events != 0) {
1760 menu->lost_events = true;
1761 if (!current_entry)
1762 ui_browser__set_color(browser, HE_COLORSET_TOP);
1763 nr_events = convert_unit(nr_events, &unit);
1764 printed += scnprintf(bf, sizeof(bf), ": %ld%c%schunks LOST!",
1765 nr_events, unit, unit == ' ' ? "" : " ");
1766 warn = bf;
1767 }
1768
1769 slsmg_write_nstring(warn, browser->width - printed);
1770
1771 if (current_entry)
1772 menu->selection = evsel;
1773}
1774
1775static int perf_evsel_menu__run(struct perf_evsel_menu *menu,
1776 int nr_events, const char *help,
1777 struct hist_browser_timer *hbt)
1778{
1779 struct perf_evlist *evlist = menu->b.priv;
1780 struct perf_evsel *pos;
1781 const char *ev_name, *title = "Available samples";
1782 int delay_secs = hbt ? hbt->refresh : 0;
1783 int key;
1784
1785 if (ui_browser__show(&menu->b, title,
1786 "ESC: exit, ENTER|->: Browse histograms") < 0)
1787 return -1;
1788
1789 while (1) {
1790 key = ui_browser__run(&menu->b, delay_secs);
1791
1792 switch (key) {
1793 case K_TIMER:
1794 hbt->timer(hbt->arg);
1795
1796 if (!menu->lost_events_warned && menu->lost_events) {
1797 ui_browser__warn_lost_events(&menu->b);
1798 menu->lost_events_warned = true;
1799 }
1800 continue;
1801 case K_RIGHT:
1802 case K_ENTER:
1803 if (!menu->selection)
1804 continue;
1805 pos = menu->selection;
1806browse_hists:
1807 perf_evlist__set_selected(evlist, pos);
1808 /*
1809 * Give the calling tool a chance to populate the non
1810 * default evsel resorted hists tree.
1811 */
1812 if (hbt)
1813 hbt->timer(hbt->arg);
1814 ev_name = perf_evsel__name(pos);
1815 key = perf_evsel__hists_browse(pos, nr_events, help,
1816 ev_name, true, hbt,
1817 menu->min_pcnt,
1818 menu->env);
1819 ui_browser__show_title(&menu->b, title);
1820 switch (key) {
1821 case K_TAB:
1822 if (pos->node.next == &evlist->entries)
1823 pos = perf_evlist__first(evlist);
1824 else
1825 pos = perf_evsel__next(pos);
1826 goto browse_hists;
1827 case K_UNTAB:
1828 if (pos->node.prev == &evlist->entries)
1829 pos = perf_evlist__last(evlist);
1830 else
1831 pos = perf_evsel__prev(pos);
1832 goto browse_hists;
1833 case K_ESC:
1834 if (!ui_browser__dialog_yesno(&menu->b,
1835 "Do you really want to exit?"))
1836 continue;
1837 /* Fall thru */
1838 case K_SWITCH_INPUT_DATA:
1839 case 'q':
1840 case CTRL('c'):
1841 goto out;
1842 default:
1843 continue;
1844 }
1845 case K_LEFT:
1846 continue;
1847 case K_ESC:
1848 if (!ui_browser__dialog_yesno(&menu->b,
1849 "Do you really want to exit?"))
1850 continue;
1851 /* Fall thru */
1852 case 'q':
1853 case CTRL('c'):
1854 goto out;
1855 default:
1856 continue;
1857 }
1858 }
1859
1860out:
1861 ui_browser__hide(&menu->b);
1862 return key;
1863}
1864
1865static bool filter_group_entries(struct ui_browser *browser __maybe_unused,
1866 void *entry)
1867{
1868 struct perf_evsel *evsel = list_entry(entry, struct perf_evsel, node);
1869
1870 if (symbol_conf.event_group && !perf_evsel__is_group_leader(evsel))
1871 return true;
1872
1873 return false;
1874}
1875
1876static int __perf_evlist__tui_browse_hists(struct perf_evlist *evlist,
1877 int nr_entries, const char *help,
1878 struct hist_browser_timer *hbt,
1879 float min_pcnt,
1880 struct perf_session_env *env)
1881{
1882 struct perf_evsel *pos;
1883 struct perf_evsel_menu menu = {
1884 .b = {
1885 .entries = &evlist->entries,
1886 .refresh = ui_browser__list_head_refresh,
1887 .seek = ui_browser__list_head_seek,
1888 .write = perf_evsel_menu__write,
1889 .filter = filter_group_entries,
1890 .nr_entries = nr_entries,
1891 .priv = evlist,
1892 },
1893 .min_pcnt = min_pcnt,
1894 .env = env,
1895 };
1896
1897 ui_helpline__push("Press ESC to exit");
1898
1899 evlist__for_each(evlist, pos) {
1900 const char *ev_name = perf_evsel__name(pos);
1901 size_t line_len = strlen(ev_name) + 7;
1902
1903 if (menu.b.width < line_len)
1904 menu.b.width = line_len;
1905 }
1906
1907 return perf_evsel_menu__run(&menu, nr_entries, help, hbt);
1908}
1909
1910int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help,
1911 struct hist_browser_timer *hbt,
1912 float min_pcnt,
1913 struct perf_session_env *env)
1914{
1915 int nr_entries = evlist->nr_entries;
1916
1917single_entry:
1918 if (nr_entries == 1) {
1919 struct perf_evsel *first = perf_evlist__first(evlist);
1920 const char *ev_name = perf_evsel__name(first);
1921
1922 return perf_evsel__hists_browse(first, nr_entries, help,
1923 ev_name, false, hbt, min_pcnt,
1924 env);
1925 }
1926
1927 if (symbol_conf.event_group) {
1928 struct perf_evsel *pos;
1929
1930 nr_entries = 0;
1931 evlist__for_each(evlist, pos) {
1932 if (perf_evsel__is_group_leader(pos))
1933 nr_entries++;
1934 }
1935
1936 if (nr_entries == 1)
1937 goto single_entry;
1938 }
1939
1940 return __perf_evlist__tui_browse_hists(evlist, nr_entries, help,
1941 hbt, min_pcnt, env);
1942}
1// SPDX-License-Identifier: GPL-2.0
2#include <dirent.h>
3#include <errno.h>
4#include <inttypes.h>
5#include <stdio.h>
6#include <stdlib.h>
7#include <string.h>
8#include <linux/rbtree.h>
9#include <linux/string.h>
10#include <sys/ttydefaults.h>
11#include <linux/time64.h>
12#include <linux/zalloc.h>
13
14#include "../../util/debug.h"
15#include "../../util/dso.h"
16#include "../../util/callchain.h"
17#include "../../util/evsel.h"
18#include "../../util/evlist.h"
19#include "../../util/header.h"
20#include "../../util/hist.h"
21#include "../../util/map.h"
22#include "../../util/symbol.h"
23#include "../../util/map_symbol.h"
24#include "../../util/branch.h"
25#include "../../util/pstack.h"
26#include "../../util/sort.h"
27#include "../../util/top.h"
28#include "../../util/thread.h"
29#include "../../arch/common.h"
30#include "../../perf.h"
31
32#include "../browsers/hists.h"
33#include "../helpline.h"
34#include "../util.h"
35#include "../ui.h"
36#include "map.h"
37#include "annotate.h"
38#include "srcline.h"
39#include "string2.h"
40#include "units.h"
41#include "time-utils.h"
42
43#include <linux/ctype.h>
44
45extern void hist_browser__init_hpp(void);
46
47static int hists_browser__scnprintf_title(struct hist_browser *browser, char *bf, size_t size);
48static void hist_browser__update_nr_entries(struct hist_browser *hb);
49
50static struct rb_node *hists__filter_entries(struct rb_node *nd,
51 float min_pcnt);
52
53static bool hist_browser__has_filter(struct hist_browser *hb)
54{
55 return hists__has_filter(hb->hists) || hb->min_pcnt || symbol_conf.has_filter || hb->c2c_filter;
56}
57
58static int hist_browser__get_folding(struct hist_browser *browser)
59{
60 struct rb_node *nd;
61 struct hists *hists = browser->hists;
62 int unfolded_rows = 0;
63
64 for (nd = rb_first_cached(&hists->entries);
65 (nd = hists__filter_entries(nd, browser->min_pcnt)) != NULL;
66 nd = rb_hierarchy_next(nd)) {
67 struct hist_entry *he =
68 rb_entry(nd, struct hist_entry, rb_node);
69
70 if (he->leaf && he->unfolded)
71 unfolded_rows += he->nr_rows;
72 }
73 return unfolded_rows;
74}
75
76static void hist_browser__set_title_space(struct hist_browser *hb)
77{
78 struct ui_browser *browser = &hb->b;
79 struct hists *hists = hb->hists;
80 struct perf_hpp_list *hpp_list = hists->hpp_list;
81
82 browser->extra_title_lines = hb->show_headers ? hpp_list->nr_header_lines : 0;
83}
84
85static u32 hist_browser__nr_entries(struct hist_browser *hb)
86{
87 u32 nr_entries;
88
89 if (symbol_conf.report_hierarchy)
90 nr_entries = hb->nr_hierarchy_entries;
91 else if (hist_browser__has_filter(hb))
92 nr_entries = hb->nr_non_filtered_entries;
93 else
94 nr_entries = hb->hists->nr_entries;
95
96 hb->nr_callchain_rows = hist_browser__get_folding(hb);
97 return nr_entries + hb->nr_callchain_rows;
98}
99
100static void hist_browser__update_rows(struct hist_browser *hb)
101{
102 struct ui_browser *browser = &hb->b;
103 struct hists *hists = hb->hists;
104 struct perf_hpp_list *hpp_list = hists->hpp_list;
105 u16 index_row;
106
107 if (!hb->show_headers) {
108 browser->rows += browser->extra_title_lines;
109 browser->extra_title_lines = 0;
110 return;
111 }
112
113 browser->extra_title_lines = hpp_list->nr_header_lines;
114 browser->rows -= browser->extra_title_lines;
115 /*
116 * Verify if we were at the last line and that line isn't
117 * visibe because we now show the header line(s).
118 */
119 index_row = browser->index - browser->top_idx;
120 if (index_row >= browser->rows)
121 browser->index -= index_row - browser->rows + 1;
122}
123
124static void hist_browser__refresh_dimensions(struct ui_browser *browser)
125{
126 struct hist_browser *hb = container_of(browser, struct hist_browser, b);
127
128 /* 3 == +/- toggle symbol before actual hist_entry rendering */
129 browser->width = 3 + (hists__sort_list_width(hb->hists) + sizeof("[k]"));
130 /*
131 * FIXME: Just keeping existing behaviour, but this really should be
132 * before updating browser->width, as it will invalidate the
133 * calculation above. Fix this and the fallout in another
134 * changeset.
135 */
136 ui_browser__refresh_dimensions(browser);
137}
138
139static void hist_browser__reset(struct hist_browser *browser)
140{
141 /*
142 * The hists__remove_entry_filter() already folds non-filtered
143 * entries so we can assume it has 0 callchain rows.
144 */
145 browser->nr_callchain_rows = 0;
146
147 hist_browser__update_nr_entries(browser);
148 browser->b.nr_entries = hist_browser__nr_entries(browser);
149 hist_browser__refresh_dimensions(&browser->b);
150 ui_browser__reset_index(&browser->b);
151}
152
153static char tree__folded_sign(bool unfolded)
154{
155 return unfolded ? '-' : '+';
156}
157
158static char hist_entry__folded(const struct hist_entry *he)
159{
160 return he->has_children ? tree__folded_sign(he->unfolded) : ' ';
161}
162
163static char callchain_list__folded(const struct callchain_list *cl)
164{
165 return cl->has_children ? tree__folded_sign(cl->unfolded) : ' ';
166}
167
168static void callchain_list__set_folding(struct callchain_list *cl, bool unfold)
169{
170 cl->unfolded = unfold ? cl->has_children : false;
171}
172
173static int callchain_node__count_rows_rb_tree(struct callchain_node *node)
174{
175 int n = 0;
176 struct rb_node *nd;
177
178 for (nd = rb_first(&node->rb_root); nd; nd = rb_next(nd)) {
179 struct callchain_node *child = rb_entry(nd, struct callchain_node, rb_node);
180 struct callchain_list *chain;
181 char folded_sign = ' '; /* No children */
182
183 list_for_each_entry(chain, &child->val, list) {
184 ++n;
185
186 /* We need this because we may not have children */
187 folded_sign = callchain_list__folded(chain);
188 if (folded_sign == '+')
189 break;
190 }
191
192 if (folded_sign == '-') /* Have children and they're unfolded */
193 n += callchain_node__count_rows_rb_tree(child);
194 }
195
196 return n;
197}
198
199static int callchain_node__count_flat_rows(struct callchain_node *node)
200{
201 struct callchain_list *chain;
202 char folded_sign = 0;
203 int n = 0;
204
205 list_for_each_entry(chain, &node->parent_val, list) {
206 if (!folded_sign) {
207 /* only check first chain list entry */
208 folded_sign = callchain_list__folded(chain);
209 if (folded_sign == '+')
210 return 1;
211 }
212 n++;
213 }
214
215 list_for_each_entry(chain, &node->val, list) {
216 if (!folded_sign) {
217 /* node->parent_val list might be empty */
218 folded_sign = callchain_list__folded(chain);
219 if (folded_sign == '+')
220 return 1;
221 }
222 n++;
223 }
224
225 return n;
226}
227
228static int callchain_node__count_folded_rows(struct callchain_node *node __maybe_unused)
229{
230 return 1;
231}
232
233static int callchain_node__count_rows(struct callchain_node *node)
234{
235 struct callchain_list *chain;
236 bool unfolded = false;
237 int n = 0;
238
239 if (callchain_param.mode == CHAIN_FLAT)
240 return callchain_node__count_flat_rows(node);
241 else if (callchain_param.mode == CHAIN_FOLDED)
242 return callchain_node__count_folded_rows(node);
243
244 list_for_each_entry(chain, &node->val, list) {
245 ++n;
246
247 unfolded = chain->unfolded;
248 }
249
250 if (unfolded)
251 n += callchain_node__count_rows_rb_tree(node);
252
253 return n;
254}
255
256static int callchain__count_rows(struct rb_root *chain)
257{
258 struct rb_node *nd;
259 int n = 0;
260
261 for (nd = rb_first(chain); nd; nd = rb_next(nd)) {
262 struct callchain_node *node = rb_entry(nd, struct callchain_node, rb_node);
263 n += callchain_node__count_rows(node);
264 }
265
266 return n;
267}
268
269static int hierarchy_count_rows(struct hist_browser *hb, struct hist_entry *he,
270 bool include_children)
271{
272 int count = 0;
273 struct rb_node *node;
274 struct hist_entry *child;
275
276 if (he->leaf)
277 return callchain__count_rows(&he->sorted_chain);
278
279 if (he->has_no_entry)
280 return 1;
281
282 node = rb_first_cached(&he->hroot_out);
283 while (node) {
284 float percent;
285
286 child = rb_entry(node, struct hist_entry, rb_node);
287 percent = hist_entry__get_percent_limit(child);
288
289 if (!child->filtered && percent >= hb->min_pcnt) {
290 count++;
291
292 if (include_children && child->unfolded)
293 count += hierarchy_count_rows(hb, child, true);
294 }
295
296 node = rb_next(node);
297 }
298 return count;
299}
300
301static bool hist_entry__toggle_fold(struct hist_entry *he)
302{
303 if (!he)
304 return false;
305
306 if (!he->has_children)
307 return false;
308
309 he->unfolded = !he->unfolded;
310 return true;
311}
312
313static bool callchain_list__toggle_fold(struct callchain_list *cl)
314{
315 if (!cl)
316 return false;
317
318 if (!cl->has_children)
319 return false;
320
321 cl->unfolded = !cl->unfolded;
322 return true;
323}
324
325static void callchain_node__init_have_children_rb_tree(struct callchain_node *node)
326{
327 struct rb_node *nd = rb_first(&node->rb_root);
328
329 for (nd = rb_first(&node->rb_root); nd; nd = rb_next(nd)) {
330 struct callchain_node *child = rb_entry(nd, struct callchain_node, rb_node);
331 struct callchain_list *chain;
332 bool first = true;
333
334 list_for_each_entry(chain, &child->val, list) {
335 if (first) {
336 first = false;
337 chain->has_children = chain->list.next != &child->val ||
338 !RB_EMPTY_ROOT(&child->rb_root);
339 } else
340 chain->has_children = chain->list.next == &child->val &&
341 !RB_EMPTY_ROOT(&child->rb_root);
342 }
343
344 callchain_node__init_have_children_rb_tree(child);
345 }
346}
347
348static void callchain_node__init_have_children(struct callchain_node *node,
349 bool has_sibling)
350{
351 struct callchain_list *chain;
352
353 chain = list_entry(node->val.next, struct callchain_list, list);
354 chain->has_children = has_sibling;
355
356 if (!list_empty(&node->val)) {
357 chain = list_entry(node->val.prev, struct callchain_list, list);
358 chain->has_children = !RB_EMPTY_ROOT(&node->rb_root);
359 }
360
361 callchain_node__init_have_children_rb_tree(node);
362}
363
364static void callchain__init_have_children(struct rb_root *root)
365{
366 struct rb_node *nd = rb_first(root);
367 bool has_sibling = nd && rb_next(nd);
368
369 for (nd = rb_first(root); nd; nd = rb_next(nd)) {
370 struct callchain_node *node = rb_entry(nd, struct callchain_node, rb_node);
371 callchain_node__init_have_children(node, has_sibling);
372 if (callchain_param.mode == CHAIN_FLAT ||
373 callchain_param.mode == CHAIN_FOLDED)
374 callchain_node__make_parent_list(node);
375 }
376}
377
378static void hist_entry__init_have_children(struct hist_entry *he)
379{
380 if (he->init_have_children)
381 return;
382
383 if (he->leaf) {
384 he->has_children = !RB_EMPTY_ROOT(&he->sorted_chain);
385 callchain__init_have_children(&he->sorted_chain);
386 } else {
387 he->has_children = !RB_EMPTY_ROOT(&he->hroot_out.rb_root);
388 }
389
390 he->init_have_children = true;
391}
392
393static bool hist_browser__toggle_fold(struct hist_browser *browser)
394{
395 struct hist_entry *he = browser->he_selection;
396 struct map_symbol *ms = browser->selection;
397 struct callchain_list *cl = container_of(ms, struct callchain_list, ms);
398 bool has_children;
399
400 if (!he || !ms)
401 return false;
402
403 if (ms == &he->ms)
404 has_children = hist_entry__toggle_fold(he);
405 else
406 has_children = callchain_list__toggle_fold(cl);
407
408 if (has_children) {
409 int child_rows = 0;
410
411 hist_entry__init_have_children(he);
412 browser->b.nr_entries -= he->nr_rows;
413
414 if (he->leaf)
415 browser->nr_callchain_rows -= he->nr_rows;
416 else
417 browser->nr_hierarchy_entries -= he->nr_rows;
418
419 if (symbol_conf.report_hierarchy)
420 child_rows = hierarchy_count_rows(browser, he, true);
421
422 if (he->unfolded) {
423 if (he->leaf)
424 he->nr_rows = callchain__count_rows(
425 &he->sorted_chain);
426 else
427 he->nr_rows = hierarchy_count_rows(browser, he, false);
428
429 /* account grand children */
430 if (symbol_conf.report_hierarchy)
431 browser->b.nr_entries += child_rows - he->nr_rows;
432
433 if (!he->leaf && he->nr_rows == 0) {
434 he->has_no_entry = true;
435 he->nr_rows = 1;
436 }
437 } else {
438 if (symbol_conf.report_hierarchy)
439 browser->b.nr_entries -= child_rows - he->nr_rows;
440
441 if (he->has_no_entry)
442 he->has_no_entry = false;
443
444 he->nr_rows = 0;
445 }
446
447 browser->b.nr_entries += he->nr_rows;
448
449 if (he->leaf)
450 browser->nr_callchain_rows += he->nr_rows;
451 else
452 browser->nr_hierarchy_entries += he->nr_rows;
453
454 return true;
455 }
456
457 /* If it doesn't have children, no toggling performed */
458 return false;
459}
460
461static int callchain_node__set_folding_rb_tree(struct callchain_node *node, bool unfold)
462{
463 int n = 0;
464 struct rb_node *nd;
465
466 for (nd = rb_first(&node->rb_root); nd; nd = rb_next(nd)) {
467 struct callchain_node *child = rb_entry(nd, struct callchain_node, rb_node);
468 struct callchain_list *chain;
469 bool has_children = false;
470
471 list_for_each_entry(chain, &child->val, list) {
472 ++n;
473 callchain_list__set_folding(chain, unfold);
474 has_children = chain->has_children;
475 }
476
477 if (has_children)
478 n += callchain_node__set_folding_rb_tree(child, unfold);
479 }
480
481 return n;
482}
483
484static int callchain_node__set_folding(struct callchain_node *node, bool unfold)
485{
486 struct callchain_list *chain;
487 bool has_children = false;
488 int n = 0;
489
490 list_for_each_entry(chain, &node->val, list) {
491 ++n;
492 callchain_list__set_folding(chain, unfold);
493 has_children = chain->has_children;
494 }
495
496 if (has_children)
497 n += callchain_node__set_folding_rb_tree(node, unfold);
498
499 return n;
500}
501
502static int callchain__set_folding(struct rb_root *chain, bool unfold)
503{
504 struct rb_node *nd;
505 int n = 0;
506
507 for (nd = rb_first(chain); nd; nd = rb_next(nd)) {
508 struct callchain_node *node = rb_entry(nd, struct callchain_node, rb_node);
509 n += callchain_node__set_folding(node, unfold);
510 }
511
512 return n;
513}
514
515static int hierarchy_set_folding(struct hist_browser *hb, struct hist_entry *he,
516 bool unfold __maybe_unused)
517{
518 float percent;
519 struct rb_node *nd;
520 struct hist_entry *child;
521 int n = 0;
522
523 for (nd = rb_first_cached(&he->hroot_out); nd; nd = rb_next(nd)) {
524 child = rb_entry(nd, struct hist_entry, rb_node);
525 percent = hist_entry__get_percent_limit(child);
526 if (!child->filtered && percent >= hb->min_pcnt)
527 n++;
528 }
529
530 return n;
531}
532
533static void __hist_entry__set_folding(struct hist_entry *he,
534 struct hist_browser *hb, bool unfold)
535{
536 hist_entry__init_have_children(he);
537 he->unfolded = unfold ? he->has_children : false;
538
539 if (he->has_children) {
540 int n;
541
542 if (he->leaf)
543 n = callchain__set_folding(&he->sorted_chain, unfold);
544 else
545 n = hierarchy_set_folding(hb, he, unfold);
546
547 he->nr_rows = unfold ? n : 0;
548 } else
549 he->nr_rows = 0;
550}
551
552static void hist_entry__set_folding(struct hist_entry *he,
553 struct hist_browser *browser, bool unfold)
554{
555 double percent;
556
557 percent = hist_entry__get_percent_limit(he);
558 if (he->filtered || percent < browser->min_pcnt)
559 return;
560
561 __hist_entry__set_folding(he, browser, unfold);
562
563 if (!he->depth || unfold)
564 browser->nr_hierarchy_entries++;
565 if (he->leaf)
566 browser->nr_callchain_rows += he->nr_rows;
567 else if (unfold && !hist_entry__has_hierarchy_children(he, browser->min_pcnt)) {
568 browser->nr_hierarchy_entries++;
569 he->has_no_entry = true;
570 he->nr_rows = 1;
571 } else
572 he->has_no_entry = false;
573}
574
575static void
576__hist_browser__set_folding(struct hist_browser *browser, bool unfold)
577{
578 struct rb_node *nd;
579 struct hist_entry *he;
580
581 nd = rb_first_cached(&browser->hists->entries);
582 while (nd) {
583 he = rb_entry(nd, struct hist_entry, rb_node);
584
585 /* set folding state even if it's currently folded */
586 nd = __rb_hierarchy_next(nd, HMD_FORCE_CHILD);
587
588 hist_entry__set_folding(he, browser, unfold);
589 }
590}
591
592static void hist_browser__set_folding(struct hist_browser *browser, bool unfold)
593{
594 browser->nr_hierarchy_entries = 0;
595 browser->nr_callchain_rows = 0;
596 __hist_browser__set_folding(browser, unfold);
597
598 browser->b.nr_entries = hist_browser__nr_entries(browser);
599 /* Go to the start, we may be way after valid entries after a collapse */
600 ui_browser__reset_index(&browser->b);
601}
602
603static void hist_browser__set_folding_selected(struct hist_browser *browser, bool unfold)
604{
605 if (!browser->he_selection)
606 return;
607
608 hist_entry__set_folding(browser->he_selection, browser, unfold);
609 browser->b.nr_entries = hist_browser__nr_entries(browser);
610}
611
612static void ui_browser__warn_lost_events(struct ui_browser *browser)
613{
614 ui_browser__warning(browser, 4,
615 "Events are being lost, check IO/CPU overload!\n\n"
616 "You may want to run 'perf' using a RT scheduler policy:\n\n"
617 " perf top -r 80\n\n"
618 "Or reduce the sampling frequency.");
619}
620
621static int hist_browser__title(struct hist_browser *browser, char *bf, size_t size)
622{
623 return browser->title ? browser->title(browser, bf, size) : 0;
624}
625
626int hist_browser__run(struct hist_browser *browser, const char *help,
627 bool warn_lost_event)
628{
629 int key;
630 char title[160];
631 struct hist_browser_timer *hbt = browser->hbt;
632 int delay_secs = hbt ? hbt->refresh : 0;
633
634 browser->b.entries = &browser->hists->entries;
635 browser->b.nr_entries = hist_browser__nr_entries(browser);
636
637 hist_browser__title(browser, title, sizeof(title));
638
639 if (ui_browser__show(&browser->b, title, "%s", help) < 0)
640 return -1;
641
642 while (1) {
643 key = ui_browser__run(&browser->b, delay_secs);
644
645 switch (key) {
646 case K_TIMER: {
647 u64 nr_entries;
648
649 WARN_ON_ONCE(!hbt);
650
651 if (hbt)
652 hbt->timer(hbt->arg);
653
654 if (hist_browser__has_filter(browser) ||
655 symbol_conf.report_hierarchy)
656 hist_browser__update_nr_entries(browser);
657
658 nr_entries = hist_browser__nr_entries(browser);
659 ui_browser__update_nr_entries(&browser->b, nr_entries);
660
661 if (warn_lost_event &&
662 (browser->hists->stats.nr_lost_warned !=
663 browser->hists->stats.nr_events[PERF_RECORD_LOST])) {
664 browser->hists->stats.nr_lost_warned =
665 browser->hists->stats.nr_events[PERF_RECORD_LOST];
666 ui_browser__warn_lost_events(&browser->b);
667 }
668
669 hist_browser__title(browser, title, sizeof(title));
670 ui_browser__show_title(&browser->b, title);
671 continue;
672 }
673 case 'D': { /* Debug */
674 static int seq;
675 struct hist_entry *h = rb_entry(browser->b.top,
676 struct hist_entry, rb_node);
677 ui_helpline__pop();
678 ui_helpline__fpush("%d: nr_ent=(%d,%d), etl: %d, rows=%d, idx=%d, fve: idx=%d, row_off=%d, nrows=%d",
679 seq++, browser->b.nr_entries,
680 browser->hists->nr_entries,
681 browser->b.extra_title_lines,
682 browser->b.rows,
683 browser->b.index,
684 browser->b.top_idx,
685 h->row_offset, h->nr_rows);
686 }
687 break;
688 case 'C':
689 /* Collapse the whole world. */
690 hist_browser__set_folding(browser, false);
691 break;
692 case 'c':
693 /* Collapse the selected entry. */
694 hist_browser__set_folding_selected(browser, false);
695 break;
696 case 'E':
697 /* Expand the whole world. */
698 hist_browser__set_folding(browser, true);
699 break;
700 case 'e':
701 /* Expand the selected entry. */
702 hist_browser__set_folding_selected(browser, true);
703 break;
704 case 'H':
705 browser->show_headers = !browser->show_headers;
706 hist_browser__update_rows(browser);
707 break;
708 case K_ENTER:
709 if (hist_browser__toggle_fold(browser))
710 break;
711 /* fall thru */
712 default:
713 goto out;
714 }
715 }
716out:
717 ui_browser__hide(&browser->b);
718 return key;
719}
720
721struct callchain_print_arg {
722 /* for hists browser */
723 off_t row_offset;
724 bool is_current_entry;
725
726 /* for file dump */
727 FILE *fp;
728 int printed;
729};
730
731typedef void (*print_callchain_entry_fn)(struct hist_browser *browser,
732 struct callchain_list *chain,
733 const char *str, int offset,
734 unsigned short row,
735 struct callchain_print_arg *arg);
736
737static void hist_browser__show_callchain_entry(struct hist_browser *browser,
738 struct callchain_list *chain,
739 const char *str, int offset,
740 unsigned short row,
741 struct callchain_print_arg *arg)
742{
743 int color, width;
744 char folded_sign = callchain_list__folded(chain);
745 bool show_annotated = browser->show_dso && chain->ms.sym && symbol__annotation(chain->ms.sym)->src;
746
747 color = HE_COLORSET_NORMAL;
748 width = browser->b.width - (offset + 2);
749 if (ui_browser__is_current_entry(&browser->b, row)) {
750 browser->selection = &chain->ms;
751 color = HE_COLORSET_SELECTED;
752 arg->is_current_entry = true;
753 }
754
755 ui_browser__set_color(&browser->b, color);
756 ui_browser__gotorc(&browser->b, row, 0);
757 ui_browser__write_nstring(&browser->b, " ", offset);
758 ui_browser__printf(&browser->b, "%c", folded_sign);
759 ui_browser__write_graph(&browser->b, show_annotated ? SLSMG_RARROW_CHAR : ' ');
760 ui_browser__write_nstring(&browser->b, str, width);
761}
762
763static void hist_browser__fprintf_callchain_entry(struct hist_browser *b __maybe_unused,
764 struct callchain_list *chain,
765 const char *str, int offset,
766 unsigned short row __maybe_unused,
767 struct callchain_print_arg *arg)
768{
769 char folded_sign = callchain_list__folded(chain);
770
771 arg->printed += fprintf(arg->fp, "%*s%c %s\n", offset, " ",
772 folded_sign, str);
773}
774
775typedef bool (*check_output_full_fn)(struct hist_browser *browser,
776 unsigned short row);
777
778static bool hist_browser__check_output_full(struct hist_browser *browser,
779 unsigned short row)
780{
781 return browser->b.rows == row;
782}
783
784static bool hist_browser__check_dump_full(struct hist_browser *browser __maybe_unused,
785 unsigned short row __maybe_unused)
786{
787 return false;
788}
789
790#define LEVEL_OFFSET_STEP 3
791
792static int hist_browser__show_callchain_list(struct hist_browser *browser,
793 struct callchain_node *node,
794 struct callchain_list *chain,
795 unsigned short row, u64 total,
796 bool need_percent, int offset,
797 print_callchain_entry_fn print,
798 struct callchain_print_arg *arg)
799{
800 char bf[1024], *alloc_str;
801 char buf[64], *alloc_str2;
802 const char *str;
803 int ret = 1;
804
805 if (arg->row_offset != 0) {
806 arg->row_offset--;
807 return 0;
808 }
809
810 alloc_str = NULL;
811 alloc_str2 = NULL;
812
813 str = callchain_list__sym_name(chain, bf, sizeof(bf),
814 browser->show_dso);
815
816 if (symbol_conf.show_branchflag_count) {
817 callchain_list_counts__printf_value(chain, NULL,
818 buf, sizeof(buf));
819
820 if (asprintf(&alloc_str2, "%s%s", str, buf) < 0)
821 str = "Not enough memory!";
822 else
823 str = alloc_str2;
824 }
825
826 if (need_percent) {
827 callchain_node__scnprintf_value(node, buf, sizeof(buf),
828 total);
829
830 if (asprintf(&alloc_str, "%s %s", buf, str) < 0)
831 str = "Not enough memory!";
832 else
833 str = alloc_str;
834 }
835
836 print(browser, chain, str, offset, row, arg);
837 free(alloc_str);
838 free(alloc_str2);
839
840 return ret;
841}
842
843static bool check_percent_display(struct rb_node *node, u64 parent_total)
844{
845 struct callchain_node *child;
846
847 if (node == NULL)
848 return false;
849
850 if (rb_next(node))
851 return true;
852
853 child = rb_entry(node, struct callchain_node, rb_node);
854 return callchain_cumul_hits(child) != parent_total;
855}
856
857static int hist_browser__show_callchain_flat(struct hist_browser *browser,
858 struct rb_root *root,
859 unsigned short row, u64 total,
860 u64 parent_total,
861 print_callchain_entry_fn print,
862 struct callchain_print_arg *arg,
863 check_output_full_fn is_output_full)
864{
865 struct rb_node *node;
866 int first_row = row, offset = LEVEL_OFFSET_STEP;
867 bool need_percent;
868
869 node = rb_first(root);
870 need_percent = check_percent_display(node, parent_total);
871
872 while (node) {
873 struct callchain_node *child = rb_entry(node, struct callchain_node, rb_node);
874 struct rb_node *next = rb_next(node);
875 struct callchain_list *chain;
876 char folded_sign = ' ';
877 int first = true;
878 int extra_offset = 0;
879
880 list_for_each_entry(chain, &child->parent_val, list) {
881 bool was_first = first;
882
883 if (first)
884 first = false;
885 else if (need_percent)
886 extra_offset = LEVEL_OFFSET_STEP;
887
888 folded_sign = callchain_list__folded(chain);
889
890 row += hist_browser__show_callchain_list(browser, child,
891 chain, row, total,
892 was_first && need_percent,
893 offset + extra_offset,
894 print, arg);
895
896 if (is_output_full(browser, row))
897 goto out;
898
899 if (folded_sign == '+')
900 goto next;
901 }
902
903 list_for_each_entry(chain, &child->val, list) {
904 bool was_first = first;
905
906 if (first)
907 first = false;
908 else if (need_percent)
909 extra_offset = LEVEL_OFFSET_STEP;
910
911 folded_sign = callchain_list__folded(chain);
912
913 row += hist_browser__show_callchain_list(browser, child,
914 chain, row, total,
915 was_first && need_percent,
916 offset + extra_offset,
917 print, arg);
918
919 if (is_output_full(browser, row))
920 goto out;
921
922 if (folded_sign == '+')
923 break;
924 }
925
926next:
927 if (is_output_full(browser, row))
928 break;
929 node = next;
930 }
931out:
932 return row - first_row;
933}
934
935static char *hist_browser__folded_callchain_str(struct hist_browser *browser,
936 struct callchain_list *chain,
937 char *value_str, char *old_str)
938{
939 char bf[1024];
940 const char *str;
941 char *new;
942
943 str = callchain_list__sym_name(chain, bf, sizeof(bf),
944 browser->show_dso);
945 if (old_str) {
946 if (asprintf(&new, "%s%s%s", old_str,
947 symbol_conf.field_sep ?: ";", str) < 0)
948 new = NULL;
949 } else {
950 if (value_str) {
951 if (asprintf(&new, "%s %s", value_str, str) < 0)
952 new = NULL;
953 } else {
954 if (asprintf(&new, "%s", str) < 0)
955 new = NULL;
956 }
957 }
958 return new;
959}
960
961static int hist_browser__show_callchain_folded(struct hist_browser *browser,
962 struct rb_root *root,
963 unsigned short row, u64 total,
964 u64 parent_total,
965 print_callchain_entry_fn print,
966 struct callchain_print_arg *arg,
967 check_output_full_fn is_output_full)
968{
969 struct rb_node *node;
970 int first_row = row, offset = LEVEL_OFFSET_STEP;
971 bool need_percent;
972
973 node = rb_first(root);
974 need_percent = check_percent_display(node, parent_total);
975
976 while (node) {
977 struct callchain_node *child = rb_entry(node, struct callchain_node, rb_node);
978 struct rb_node *next = rb_next(node);
979 struct callchain_list *chain, *first_chain = NULL;
980 int first = true;
981 char *value_str = NULL, *value_str_alloc = NULL;
982 char *chain_str = NULL, *chain_str_alloc = NULL;
983
984 if (arg->row_offset != 0) {
985 arg->row_offset--;
986 goto next;
987 }
988
989 if (need_percent) {
990 char buf[64];
991
992 callchain_node__scnprintf_value(child, buf, sizeof(buf), total);
993 if (asprintf(&value_str, "%s", buf) < 0) {
994 value_str = (char *)"<...>";
995 goto do_print;
996 }
997 value_str_alloc = value_str;
998 }
999
1000 list_for_each_entry(chain, &child->parent_val, list) {
1001 chain_str = hist_browser__folded_callchain_str(browser,
1002 chain, value_str, chain_str);
1003 if (first) {
1004 first = false;
1005 first_chain = chain;
1006 }
1007
1008 if (chain_str == NULL) {
1009 chain_str = (char *)"Not enough memory!";
1010 goto do_print;
1011 }
1012
1013 chain_str_alloc = chain_str;
1014 }
1015
1016 list_for_each_entry(chain, &child->val, list) {
1017 chain_str = hist_browser__folded_callchain_str(browser,
1018 chain, value_str, chain_str);
1019 if (first) {
1020 first = false;
1021 first_chain = chain;
1022 }
1023
1024 if (chain_str == NULL) {
1025 chain_str = (char *)"Not enough memory!";
1026 goto do_print;
1027 }
1028
1029 chain_str_alloc = chain_str;
1030 }
1031
1032do_print:
1033 print(browser, first_chain, chain_str, offset, row++, arg);
1034 free(value_str_alloc);
1035 free(chain_str_alloc);
1036
1037next:
1038 if (is_output_full(browser, row))
1039 break;
1040 node = next;
1041 }
1042
1043 return row - first_row;
1044}
1045
1046static int hist_browser__show_callchain_graph(struct hist_browser *browser,
1047 struct rb_root *root, int level,
1048 unsigned short row, u64 total,
1049 u64 parent_total,
1050 print_callchain_entry_fn print,
1051 struct callchain_print_arg *arg,
1052 check_output_full_fn is_output_full)
1053{
1054 struct rb_node *node;
1055 int first_row = row, offset = level * LEVEL_OFFSET_STEP;
1056 bool need_percent;
1057 u64 percent_total = total;
1058
1059 if (callchain_param.mode == CHAIN_GRAPH_REL)
1060 percent_total = parent_total;
1061
1062 node = rb_first(root);
1063 need_percent = check_percent_display(node, parent_total);
1064
1065 while (node) {
1066 struct callchain_node *child = rb_entry(node, struct callchain_node, rb_node);
1067 struct rb_node *next = rb_next(node);
1068 struct callchain_list *chain;
1069 char folded_sign = ' ';
1070 int first = true;
1071 int extra_offset = 0;
1072
1073 list_for_each_entry(chain, &child->val, list) {
1074 bool was_first = first;
1075
1076 if (first)
1077 first = false;
1078 else if (need_percent)
1079 extra_offset = LEVEL_OFFSET_STEP;
1080
1081 folded_sign = callchain_list__folded(chain);
1082
1083 row += hist_browser__show_callchain_list(browser, child,
1084 chain, row, percent_total,
1085 was_first && need_percent,
1086 offset + extra_offset,
1087 print, arg);
1088
1089 if (is_output_full(browser, row))
1090 goto out;
1091
1092 if (folded_sign == '+')
1093 break;
1094 }
1095
1096 if (folded_sign == '-') {
1097 const int new_level = level + (extra_offset ? 2 : 1);
1098
1099 row += hist_browser__show_callchain_graph(browser, &child->rb_root,
1100 new_level, row, total,
1101 child->children_hit,
1102 print, arg, is_output_full);
1103 }
1104 if (is_output_full(browser, row))
1105 break;
1106 node = next;
1107 }
1108out:
1109 return row - first_row;
1110}
1111
1112static int hist_browser__show_callchain(struct hist_browser *browser,
1113 struct hist_entry *entry, int level,
1114 unsigned short row,
1115 print_callchain_entry_fn print,
1116 struct callchain_print_arg *arg,
1117 check_output_full_fn is_output_full)
1118{
1119 u64 total = hists__total_period(entry->hists);
1120 u64 parent_total;
1121 int printed;
1122
1123 if (symbol_conf.cumulate_callchain)
1124 parent_total = entry->stat_acc->period;
1125 else
1126 parent_total = entry->stat.period;
1127
1128 if (callchain_param.mode == CHAIN_FLAT) {
1129 printed = hist_browser__show_callchain_flat(browser,
1130 &entry->sorted_chain, row,
1131 total, parent_total, print, arg,
1132 is_output_full);
1133 } else if (callchain_param.mode == CHAIN_FOLDED) {
1134 printed = hist_browser__show_callchain_folded(browser,
1135 &entry->sorted_chain, row,
1136 total, parent_total, print, arg,
1137 is_output_full);
1138 } else {
1139 printed = hist_browser__show_callchain_graph(browser,
1140 &entry->sorted_chain, level, row,
1141 total, parent_total, print, arg,
1142 is_output_full);
1143 }
1144
1145 if (arg->is_current_entry)
1146 browser->he_selection = entry;
1147
1148 return printed;
1149}
1150
1151struct hpp_arg {
1152 struct ui_browser *b;
1153 char folded_sign;
1154 bool current_entry;
1155};
1156
1157int __hpp__slsmg_color_printf(struct perf_hpp *hpp, const char *fmt, ...)
1158{
1159 struct hpp_arg *arg = hpp->ptr;
1160 int ret, len;
1161 va_list args;
1162 double percent;
1163
1164 va_start(args, fmt);
1165 len = va_arg(args, int);
1166 percent = va_arg(args, double);
1167 va_end(args);
1168
1169 ui_browser__set_percent_color(arg->b, percent, arg->current_entry);
1170
1171 ret = scnprintf(hpp->buf, hpp->size, fmt, len, percent);
1172 ui_browser__printf(arg->b, "%s", hpp->buf);
1173
1174 return ret;
1175}
1176
1177#define __HPP_COLOR_PERCENT_FN(_type, _field) \
1178static u64 __hpp_get_##_field(struct hist_entry *he) \
1179{ \
1180 return he->stat._field; \
1181} \
1182 \
1183static int \
1184hist_browser__hpp_color_##_type(struct perf_hpp_fmt *fmt, \
1185 struct perf_hpp *hpp, \
1186 struct hist_entry *he) \
1187{ \
1188 return hpp__fmt(fmt, hpp, he, __hpp_get_##_field, " %*.2f%%", \
1189 __hpp__slsmg_color_printf, true); \
1190}
1191
1192#define __HPP_COLOR_ACC_PERCENT_FN(_type, _field) \
1193static u64 __hpp_get_acc_##_field(struct hist_entry *he) \
1194{ \
1195 return he->stat_acc->_field; \
1196} \
1197 \
1198static int \
1199hist_browser__hpp_color_##_type(struct perf_hpp_fmt *fmt, \
1200 struct perf_hpp *hpp, \
1201 struct hist_entry *he) \
1202{ \
1203 if (!symbol_conf.cumulate_callchain) { \
1204 struct hpp_arg *arg = hpp->ptr; \
1205 int len = fmt->user_len ?: fmt->len; \
1206 int ret = scnprintf(hpp->buf, hpp->size, \
1207 "%*s", len, "N/A"); \
1208 ui_browser__printf(arg->b, "%s", hpp->buf); \
1209 \
1210 return ret; \
1211 } \
1212 return hpp__fmt(fmt, hpp, he, __hpp_get_acc_##_field, \
1213 " %*.2f%%", __hpp__slsmg_color_printf, true); \
1214}
1215
1216__HPP_COLOR_PERCENT_FN(overhead, period)
1217__HPP_COLOR_PERCENT_FN(overhead_sys, period_sys)
1218__HPP_COLOR_PERCENT_FN(overhead_us, period_us)
1219__HPP_COLOR_PERCENT_FN(overhead_guest_sys, period_guest_sys)
1220__HPP_COLOR_PERCENT_FN(overhead_guest_us, period_guest_us)
1221__HPP_COLOR_ACC_PERCENT_FN(overhead_acc, period)
1222
1223#undef __HPP_COLOR_PERCENT_FN
1224#undef __HPP_COLOR_ACC_PERCENT_FN
1225
1226void hist_browser__init_hpp(void)
1227{
1228 perf_hpp__format[PERF_HPP__OVERHEAD].color =
1229 hist_browser__hpp_color_overhead;
1230 perf_hpp__format[PERF_HPP__OVERHEAD_SYS].color =
1231 hist_browser__hpp_color_overhead_sys;
1232 perf_hpp__format[PERF_HPP__OVERHEAD_US].color =
1233 hist_browser__hpp_color_overhead_us;
1234 perf_hpp__format[PERF_HPP__OVERHEAD_GUEST_SYS].color =
1235 hist_browser__hpp_color_overhead_guest_sys;
1236 perf_hpp__format[PERF_HPP__OVERHEAD_GUEST_US].color =
1237 hist_browser__hpp_color_overhead_guest_us;
1238 perf_hpp__format[PERF_HPP__OVERHEAD_ACC].color =
1239 hist_browser__hpp_color_overhead_acc;
1240
1241 res_sample_init();
1242}
1243
1244static int hist_browser__show_entry(struct hist_browser *browser,
1245 struct hist_entry *entry,
1246 unsigned short row)
1247{
1248 int printed = 0;
1249 int width = browser->b.width;
1250 char folded_sign = ' ';
1251 bool current_entry = ui_browser__is_current_entry(&browser->b, row);
1252 bool use_callchain = hist_entry__has_callchains(entry) && symbol_conf.use_callchain;
1253 off_t row_offset = entry->row_offset;
1254 bool first = true;
1255 struct perf_hpp_fmt *fmt;
1256
1257 if (current_entry) {
1258 browser->he_selection = entry;
1259 browser->selection = &entry->ms;
1260 }
1261
1262 if (use_callchain) {
1263 hist_entry__init_have_children(entry);
1264 folded_sign = hist_entry__folded(entry);
1265 }
1266
1267 if (row_offset == 0) {
1268 struct hpp_arg arg = {
1269 .b = &browser->b,
1270 .folded_sign = folded_sign,
1271 .current_entry = current_entry,
1272 };
1273 int column = 0;
1274
1275 ui_browser__gotorc(&browser->b, row, 0);
1276
1277 hists__for_each_format(browser->hists, fmt) {
1278 char s[2048];
1279 struct perf_hpp hpp = {
1280 .buf = s,
1281 .size = sizeof(s),
1282 .ptr = &arg,
1283 };
1284
1285 if (perf_hpp__should_skip(fmt, entry->hists) ||
1286 column++ < browser->b.horiz_scroll)
1287 continue;
1288
1289 if (current_entry && browser->b.navkeypressed) {
1290 ui_browser__set_color(&browser->b,
1291 HE_COLORSET_SELECTED);
1292 } else {
1293 ui_browser__set_color(&browser->b,
1294 HE_COLORSET_NORMAL);
1295 }
1296
1297 if (first) {
1298 if (use_callchain) {
1299 ui_browser__printf(&browser->b, "%c ", folded_sign);
1300 width -= 2;
1301 }
1302 first = false;
1303 } else {
1304 ui_browser__printf(&browser->b, " ");
1305 width -= 2;
1306 }
1307
1308 if (fmt->color) {
1309 int ret = fmt->color(fmt, &hpp, entry);
1310 hist_entry__snprintf_alignment(entry, &hpp, fmt, ret);
1311 /*
1312 * fmt->color() already used ui_browser to
1313 * print the non alignment bits, skip it (+ret):
1314 */
1315 ui_browser__printf(&browser->b, "%s", s + ret);
1316 } else {
1317 hist_entry__snprintf_alignment(entry, &hpp, fmt, fmt->entry(fmt, &hpp, entry));
1318 ui_browser__printf(&browser->b, "%s", s);
1319 }
1320 width -= hpp.buf - s;
1321 }
1322
1323 /* The scroll bar isn't being used */
1324 if (!browser->b.navkeypressed)
1325 width += 1;
1326
1327 ui_browser__write_nstring(&browser->b, "", width);
1328
1329 ++row;
1330 ++printed;
1331 } else
1332 --row_offset;
1333
1334 if (folded_sign == '-' && row != browser->b.rows) {
1335 struct callchain_print_arg arg = {
1336 .row_offset = row_offset,
1337 .is_current_entry = current_entry,
1338 };
1339
1340 printed += hist_browser__show_callchain(browser,
1341 entry, 1, row,
1342 hist_browser__show_callchain_entry,
1343 &arg,
1344 hist_browser__check_output_full);
1345 }
1346
1347 return printed;
1348}
1349
1350static int hist_browser__show_hierarchy_entry(struct hist_browser *browser,
1351 struct hist_entry *entry,
1352 unsigned short row,
1353 int level)
1354{
1355 int printed = 0;
1356 int width = browser->b.width;
1357 char folded_sign = ' ';
1358 bool current_entry = ui_browser__is_current_entry(&browser->b, row);
1359 off_t row_offset = entry->row_offset;
1360 bool first = true;
1361 struct perf_hpp_fmt *fmt;
1362 struct perf_hpp_list_node *fmt_node;
1363 struct hpp_arg arg = {
1364 .b = &browser->b,
1365 .current_entry = current_entry,
1366 };
1367 int column = 0;
1368 int hierarchy_indent = (entry->hists->nr_hpp_node - 2) * HIERARCHY_INDENT;
1369
1370 if (current_entry) {
1371 browser->he_selection = entry;
1372 browser->selection = &entry->ms;
1373 }
1374
1375 hist_entry__init_have_children(entry);
1376 folded_sign = hist_entry__folded(entry);
1377 arg.folded_sign = folded_sign;
1378
1379 if (entry->leaf && row_offset) {
1380 row_offset--;
1381 goto show_callchain;
1382 }
1383
1384 ui_browser__gotorc(&browser->b, row, 0);
1385
1386 if (current_entry && browser->b.navkeypressed)
1387 ui_browser__set_color(&browser->b, HE_COLORSET_SELECTED);
1388 else
1389 ui_browser__set_color(&browser->b, HE_COLORSET_NORMAL);
1390
1391 ui_browser__write_nstring(&browser->b, "", level * HIERARCHY_INDENT);
1392 width -= level * HIERARCHY_INDENT;
1393
1394 /* the first hpp_list_node is for overhead columns */
1395 fmt_node = list_first_entry(&entry->hists->hpp_formats,
1396 struct perf_hpp_list_node, list);
1397 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
1398 char s[2048];
1399 struct perf_hpp hpp = {
1400 .buf = s,
1401 .size = sizeof(s),
1402 .ptr = &arg,
1403 };
1404
1405 if (perf_hpp__should_skip(fmt, entry->hists) ||
1406 column++ < browser->b.horiz_scroll)
1407 continue;
1408
1409 if (current_entry && browser->b.navkeypressed) {
1410 ui_browser__set_color(&browser->b,
1411 HE_COLORSET_SELECTED);
1412 } else {
1413 ui_browser__set_color(&browser->b,
1414 HE_COLORSET_NORMAL);
1415 }
1416
1417 if (first) {
1418 ui_browser__printf(&browser->b, "%c ", folded_sign);
1419 width -= 2;
1420 first = false;
1421 } else {
1422 ui_browser__printf(&browser->b, " ");
1423 width -= 2;
1424 }
1425
1426 if (fmt->color) {
1427 int ret = fmt->color(fmt, &hpp, entry);
1428 hist_entry__snprintf_alignment(entry, &hpp, fmt, ret);
1429 /*
1430 * fmt->color() already used ui_browser to
1431 * print the non alignment bits, skip it (+ret):
1432 */
1433 ui_browser__printf(&browser->b, "%s", s + ret);
1434 } else {
1435 int ret = fmt->entry(fmt, &hpp, entry);
1436 hist_entry__snprintf_alignment(entry, &hpp, fmt, ret);
1437 ui_browser__printf(&browser->b, "%s", s);
1438 }
1439 width -= hpp.buf - s;
1440 }
1441
1442 if (!first) {
1443 ui_browser__write_nstring(&browser->b, "", hierarchy_indent);
1444 width -= hierarchy_indent;
1445 }
1446
1447 if (column >= browser->b.horiz_scroll) {
1448 char s[2048];
1449 struct perf_hpp hpp = {
1450 .buf = s,
1451 .size = sizeof(s),
1452 .ptr = &arg,
1453 };
1454
1455 if (current_entry && browser->b.navkeypressed) {
1456 ui_browser__set_color(&browser->b,
1457 HE_COLORSET_SELECTED);
1458 } else {
1459 ui_browser__set_color(&browser->b,
1460 HE_COLORSET_NORMAL);
1461 }
1462
1463 perf_hpp_list__for_each_format(entry->hpp_list, fmt) {
1464 if (first) {
1465 ui_browser__printf(&browser->b, "%c ", folded_sign);
1466 first = false;
1467 } else {
1468 ui_browser__write_nstring(&browser->b, "", 2);
1469 }
1470
1471 width -= 2;
1472
1473 /*
1474 * No need to call hist_entry__snprintf_alignment()
1475 * since this fmt is always the last column in the
1476 * hierarchy mode.
1477 */
1478 if (fmt->color) {
1479 width -= fmt->color(fmt, &hpp, entry);
1480 } else {
1481 int i = 0;
1482
1483 width -= fmt->entry(fmt, &hpp, entry);
1484 ui_browser__printf(&browser->b, "%s", skip_spaces(s));
1485
1486 while (isspace(s[i++]))
1487 width++;
1488 }
1489 }
1490 }
1491
1492 /* The scroll bar isn't being used */
1493 if (!browser->b.navkeypressed)
1494 width += 1;
1495
1496 ui_browser__write_nstring(&browser->b, "", width);
1497
1498 ++row;
1499 ++printed;
1500
1501show_callchain:
1502 if (entry->leaf && folded_sign == '-' && row != browser->b.rows) {
1503 struct callchain_print_arg carg = {
1504 .row_offset = row_offset,
1505 };
1506
1507 printed += hist_browser__show_callchain(browser, entry,
1508 level + 1, row,
1509 hist_browser__show_callchain_entry, &carg,
1510 hist_browser__check_output_full);
1511 }
1512
1513 return printed;
1514}
1515
1516static int hist_browser__show_no_entry(struct hist_browser *browser,
1517 unsigned short row, int level)
1518{
1519 int width = browser->b.width;
1520 bool current_entry = ui_browser__is_current_entry(&browser->b, row);
1521 bool first = true;
1522 int column = 0;
1523 int ret;
1524 struct perf_hpp_fmt *fmt;
1525 struct perf_hpp_list_node *fmt_node;
1526 int indent = browser->hists->nr_hpp_node - 2;
1527
1528 if (current_entry) {
1529 browser->he_selection = NULL;
1530 browser->selection = NULL;
1531 }
1532
1533 ui_browser__gotorc(&browser->b, row, 0);
1534
1535 if (current_entry && browser->b.navkeypressed)
1536 ui_browser__set_color(&browser->b, HE_COLORSET_SELECTED);
1537 else
1538 ui_browser__set_color(&browser->b, HE_COLORSET_NORMAL);
1539
1540 ui_browser__write_nstring(&browser->b, "", level * HIERARCHY_INDENT);
1541 width -= level * HIERARCHY_INDENT;
1542
1543 /* the first hpp_list_node is for overhead columns */
1544 fmt_node = list_first_entry(&browser->hists->hpp_formats,
1545 struct perf_hpp_list_node, list);
1546 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
1547 if (perf_hpp__should_skip(fmt, browser->hists) ||
1548 column++ < browser->b.horiz_scroll)
1549 continue;
1550
1551 ret = fmt->width(fmt, NULL, browser->hists);
1552
1553 if (first) {
1554 /* for folded sign */
1555 first = false;
1556 ret++;
1557 } else {
1558 /* space between columns */
1559 ret += 2;
1560 }
1561
1562 ui_browser__write_nstring(&browser->b, "", ret);
1563 width -= ret;
1564 }
1565
1566 ui_browser__write_nstring(&browser->b, "", indent * HIERARCHY_INDENT);
1567 width -= indent * HIERARCHY_INDENT;
1568
1569 if (column >= browser->b.horiz_scroll) {
1570 char buf[32];
1571
1572 ret = snprintf(buf, sizeof(buf), "no entry >= %.2f%%", browser->min_pcnt);
1573 ui_browser__printf(&browser->b, " %s", buf);
1574 width -= ret + 2;
1575 }
1576
1577 /* The scroll bar isn't being used */
1578 if (!browser->b.navkeypressed)
1579 width += 1;
1580
1581 ui_browser__write_nstring(&browser->b, "", width);
1582 return 1;
1583}
1584
1585static int advance_hpp_check(struct perf_hpp *hpp, int inc)
1586{
1587 advance_hpp(hpp, inc);
1588 return hpp->size <= 0;
1589}
1590
1591static int
1592hists_browser__scnprintf_headers(struct hist_browser *browser, char *buf,
1593 size_t size, int line)
1594{
1595 struct hists *hists = browser->hists;
1596 struct perf_hpp dummy_hpp = {
1597 .buf = buf,
1598 .size = size,
1599 };
1600 struct perf_hpp_fmt *fmt;
1601 size_t ret = 0;
1602 int column = 0;
1603 int span = 0;
1604
1605 if (hists__has_callchains(hists) && symbol_conf.use_callchain) {
1606 ret = scnprintf(buf, size, " ");
1607 if (advance_hpp_check(&dummy_hpp, ret))
1608 return ret;
1609 }
1610
1611 hists__for_each_format(browser->hists, fmt) {
1612 if (perf_hpp__should_skip(fmt, hists) || column++ < browser->b.horiz_scroll)
1613 continue;
1614
1615 ret = fmt->header(fmt, &dummy_hpp, hists, line, &span);
1616 if (advance_hpp_check(&dummy_hpp, ret))
1617 break;
1618
1619 if (span)
1620 continue;
1621
1622 ret = scnprintf(dummy_hpp.buf, dummy_hpp.size, " ");
1623 if (advance_hpp_check(&dummy_hpp, ret))
1624 break;
1625 }
1626
1627 return ret;
1628}
1629
1630static int hists_browser__scnprintf_hierarchy_headers(struct hist_browser *browser, char *buf, size_t size)
1631{
1632 struct hists *hists = browser->hists;
1633 struct perf_hpp dummy_hpp = {
1634 .buf = buf,
1635 .size = size,
1636 };
1637 struct perf_hpp_fmt *fmt;
1638 struct perf_hpp_list_node *fmt_node;
1639 size_t ret = 0;
1640 int column = 0;
1641 int indent = hists->nr_hpp_node - 2;
1642 bool first_node, first_col;
1643
1644 ret = scnprintf(buf, size, " ");
1645 if (advance_hpp_check(&dummy_hpp, ret))
1646 return ret;
1647
1648 first_node = true;
1649 /* the first hpp_list_node is for overhead columns */
1650 fmt_node = list_first_entry(&hists->hpp_formats,
1651 struct perf_hpp_list_node, list);
1652 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
1653 if (column++ < browser->b.horiz_scroll)
1654 continue;
1655
1656 ret = fmt->header(fmt, &dummy_hpp, hists, 0, NULL);
1657 if (advance_hpp_check(&dummy_hpp, ret))
1658 break;
1659
1660 ret = scnprintf(dummy_hpp.buf, dummy_hpp.size, " ");
1661 if (advance_hpp_check(&dummy_hpp, ret))
1662 break;
1663
1664 first_node = false;
1665 }
1666
1667 if (!first_node) {
1668 ret = scnprintf(dummy_hpp.buf, dummy_hpp.size, "%*s",
1669 indent * HIERARCHY_INDENT, "");
1670 if (advance_hpp_check(&dummy_hpp, ret))
1671 return ret;
1672 }
1673
1674 first_node = true;
1675 list_for_each_entry_continue(fmt_node, &hists->hpp_formats, list) {
1676 if (!first_node) {
1677 ret = scnprintf(dummy_hpp.buf, dummy_hpp.size, " / ");
1678 if (advance_hpp_check(&dummy_hpp, ret))
1679 break;
1680 }
1681 first_node = false;
1682
1683 first_col = true;
1684 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
1685 char *start;
1686
1687 if (perf_hpp__should_skip(fmt, hists))
1688 continue;
1689
1690 if (!first_col) {
1691 ret = scnprintf(dummy_hpp.buf, dummy_hpp.size, "+");
1692 if (advance_hpp_check(&dummy_hpp, ret))
1693 break;
1694 }
1695 first_col = false;
1696
1697 ret = fmt->header(fmt, &dummy_hpp, hists, 0, NULL);
1698 dummy_hpp.buf[ret] = '\0';
1699
1700 start = strim(dummy_hpp.buf);
1701 ret = strlen(start);
1702
1703 if (start != dummy_hpp.buf)
1704 memmove(dummy_hpp.buf, start, ret + 1);
1705
1706 if (advance_hpp_check(&dummy_hpp, ret))
1707 break;
1708 }
1709 }
1710
1711 return ret;
1712}
1713
1714static void hists_browser__hierarchy_headers(struct hist_browser *browser)
1715{
1716 char headers[1024];
1717
1718 hists_browser__scnprintf_hierarchy_headers(browser, headers,
1719 sizeof(headers));
1720
1721 ui_browser__gotorc(&browser->b, 0, 0);
1722 ui_browser__set_color(&browser->b, HE_COLORSET_ROOT);
1723 ui_browser__write_nstring(&browser->b, headers, browser->b.width + 1);
1724}
1725
1726static void hists_browser__headers(struct hist_browser *browser)
1727{
1728 struct hists *hists = browser->hists;
1729 struct perf_hpp_list *hpp_list = hists->hpp_list;
1730
1731 int line;
1732
1733 for (line = 0; line < hpp_list->nr_header_lines; line++) {
1734 char headers[1024];
1735
1736 hists_browser__scnprintf_headers(browser, headers,
1737 sizeof(headers), line);
1738
1739 ui_browser__gotorc_title(&browser->b, line, 0);
1740 ui_browser__set_color(&browser->b, HE_COLORSET_ROOT);
1741 ui_browser__write_nstring(&browser->b, headers, browser->b.width + 1);
1742 }
1743}
1744
1745static void hist_browser__show_headers(struct hist_browser *browser)
1746{
1747 if (symbol_conf.report_hierarchy)
1748 hists_browser__hierarchy_headers(browser);
1749 else
1750 hists_browser__headers(browser);
1751}
1752
1753static void ui_browser__hists_init_top(struct ui_browser *browser)
1754{
1755 if (browser->top == NULL) {
1756 struct hist_browser *hb;
1757
1758 hb = container_of(browser, struct hist_browser, b);
1759 browser->top = rb_first_cached(&hb->hists->entries);
1760 }
1761}
1762
1763static unsigned int hist_browser__refresh(struct ui_browser *browser)
1764{
1765 unsigned row = 0;
1766 struct rb_node *nd;
1767 struct hist_browser *hb = container_of(browser, struct hist_browser, b);
1768
1769 if (hb->show_headers)
1770 hist_browser__show_headers(hb);
1771
1772 ui_browser__hists_init_top(browser);
1773 hb->he_selection = NULL;
1774 hb->selection = NULL;
1775
1776 for (nd = browser->top; nd; nd = rb_hierarchy_next(nd)) {
1777 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
1778 float percent;
1779
1780 if (h->filtered) {
1781 /* let it move to sibling */
1782 h->unfolded = false;
1783 continue;
1784 }
1785
1786 percent = hist_entry__get_percent_limit(h);
1787 if (percent < hb->min_pcnt)
1788 continue;
1789
1790 if (symbol_conf.report_hierarchy) {
1791 row += hist_browser__show_hierarchy_entry(hb, h, row,
1792 h->depth);
1793 if (row == browser->rows)
1794 break;
1795
1796 if (h->has_no_entry) {
1797 hist_browser__show_no_entry(hb, row, h->depth + 1);
1798 row++;
1799 }
1800 } else {
1801 row += hist_browser__show_entry(hb, h, row);
1802 }
1803
1804 if (row == browser->rows)
1805 break;
1806 }
1807
1808 return row;
1809}
1810
1811static struct rb_node *hists__filter_entries(struct rb_node *nd,
1812 float min_pcnt)
1813{
1814 while (nd != NULL) {
1815 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
1816 float percent = hist_entry__get_percent_limit(h);
1817
1818 if (!h->filtered && percent >= min_pcnt)
1819 return nd;
1820
1821 /*
1822 * If it's filtered, its all children also were filtered.
1823 * So move to sibling node.
1824 */
1825 if (rb_next(nd))
1826 nd = rb_next(nd);
1827 else
1828 nd = rb_hierarchy_next(nd);
1829 }
1830
1831 return NULL;
1832}
1833
1834static struct rb_node *hists__filter_prev_entries(struct rb_node *nd,
1835 float min_pcnt)
1836{
1837 while (nd != NULL) {
1838 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
1839 float percent = hist_entry__get_percent_limit(h);
1840
1841 if (!h->filtered && percent >= min_pcnt)
1842 return nd;
1843
1844 nd = rb_hierarchy_prev(nd);
1845 }
1846
1847 return NULL;
1848}
1849
1850static void ui_browser__hists_seek(struct ui_browser *browser,
1851 off_t offset, int whence)
1852{
1853 struct hist_entry *h;
1854 struct rb_node *nd;
1855 bool first = true;
1856 struct hist_browser *hb;
1857
1858 hb = container_of(browser, struct hist_browser, b);
1859
1860 if (browser->nr_entries == 0)
1861 return;
1862
1863 ui_browser__hists_init_top(browser);
1864
1865 switch (whence) {
1866 case SEEK_SET:
1867 nd = hists__filter_entries(rb_first(browser->entries),
1868 hb->min_pcnt);
1869 break;
1870 case SEEK_CUR:
1871 nd = browser->top;
1872 goto do_offset;
1873 case SEEK_END:
1874 nd = rb_hierarchy_last(rb_last(browser->entries));
1875 nd = hists__filter_prev_entries(nd, hb->min_pcnt);
1876 first = false;
1877 break;
1878 default:
1879 return;
1880 }
1881
1882 /*
1883 * Moves not relative to the first visible entry invalidates its
1884 * row_offset:
1885 */
1886 h = rb_entry(browser->top, struct hist_entry, rb_node);
1887 h->row_offset = 0;
1888
1889 /*
1890 * Here we have to check if nd is expanded (+), if it is we can't go
1891 * the next top level hist_entry, instead we must compute an offset of
1892 * what _not_ to show and not change the first visible entry.
1893 *
1894 * This offset increments when we are going from top to bottom and
1895 * decreases when we're going from bottom to top.
1896 *
1897 * As we don't have backpointers to the top level in the callchains
1898 * structure, we need to always print the whole hist_entry callchain,
1899 * skipping the first ones that are before the first visible entry
1900 * and stop when we printed enough lines to fill the screen.
1901 */
1902do_offset:
1903 if (!nd)
1904 return;
1905
1906 if (offset > 0) {
1907 do {
1908 h = rb_entry(nd, struct hist_entry, rb_node);
1909 if (h->unfolded && h->leaf) {
1910 u16 remaining = h->nr_rows - h->row_offset;
1911 if (offset > remaining) {
1912 offset -= remaining;
1913 h->row_offset = 0;
1914 } else {
1915 h->row_offset += offset;
1916 offset = 0;
1917 browser->top = nd;
1918 break;
1919 }
1920 }
1921 nd = hists__filter_entries(rb_hierarchy_next(nd),
1922 hb->min_pcnt);
1923 if (nd == NULL)
1924 break;
1925 --offset;
1926 browser->top = nd;
1927 } while (offset != 0);
1928 } else if (offset < 0) {
1929 while (1) {
1930 h = rb_entry(nd, struct hist_entry, rb_node);
1931 if (h->unfolded && h->leaf) {
1932 if (first) {
1933 if (-offset > h->row_offset) {
1934 offset += h->row_offset;
1935 h->row_offset = 0;
1936 } else {
1937 h->row_offset += offset;
1938 offset = 0;
1939 browser->top = nd;
1940 break;
1941 }
1942 } else {
1943 if (-offset > h->nr_rows) {
1944 offset += h->nr_rows;
1945 h->row_offset = 0;
1946 } else {
1947 h->row_offset = h->nr_rows + offset;
1948 offset = 0;
1949 browser->top = nd;
1950 break;
1951 }
1952 }
1953 }
1954
1955 nd = hists__filter_prev_entries(rb_hierarchy_prev(nd),
1956 hb->min_pcnt);
1957 if (nd == NULL)
1958 break;
1959 ++offset;
1960 browser->top = nd;
1961 if (offset == 0) {
1962 /*
1963 * Last unfiltered hist_entry, check if it is
1964 * unfolded, if it is then we should have
1965 * row_offset at its last entry.
1966 */
1967 h = rb_entry(nd, struct hist_entry, rb_node);
1968 if (h->unfolded && h->leaf)
1969 h->row_offset = h->nr_rows;
1970 break;
1971 }
1972 first = false;
1973 }
1974 } else {
1975 browser->top = nd;
1976 h = rb_entry(nd, struct hist_entry, rb_node);
1977 h->row_offset = 0;
1978 }
1979}
1980
1981static int hist_browser__fprintf_callchain(struct hist_browser *browser,
1982 struct hist_entry *he, FILE *fp,
1983 int level)
1984{
1985 struct callchain_print_arg arg = {
1986 .fp = fp,
1987 };
1988
1989 hist_browser__show_callchain(browser, he, level, 0,
1990 hist_browser__fprintf_callchain_entry, &arg,
1991 hist_browser__check_dump_full);
1992 return arg.printed;
1993}
1994
1995static int hist_browser__fprintf_entry(struct hist_browser *browser,
1996 struct hist_entry *he, FILE *fp)
1997{
1998 char s[8192];
1999 int printed = 0;
2000 char folded_sign = ' ';
2001 struct perf_hpp hpp = {
2002 .buf = s,
2003 .size = sizeof(s),
2004 };
2005 struct perf_hpp_fmt *fmt;
2006 bool first = true;
2007 int ret;
2008
2009 if (hist_entry__has_callchains(he) && symbol_conf.use_callchain) {
2010 folded_sign = hist_entry__folded(he);
2011 printed += fprintf(fp, "%c ", folded_sign);
2012 }
2013
2014 hists__for_each_format(browser->hists, fmt) {
2015 if (perf_hpp__should_skip(fmt, he->hists))
2016 continue;
2017
2018 if (!first) {
2019 ret = scnprintf(hpp.buf, hpp.size, " ");
2020 advance_hpp(&hpp, ret);
2021 } else
2022 first = false;
2023
2024 ret = fmt->entry(fmt, &hpp, he);
2025 ret = hist_entry__snprintf_alignment(he, &hpp, fmt, ret);
2026 advance_hpp(&hpp, ret);
2027 }
2028 printed += fprintf(fp, "%s\n", s);
2029
2030 if (folded_sign == '-')
2031 printed += hist_browser__fprintf_callchain(browser, he, fp, 1);
2032
2033 return printed;
2034}
2035
2036
2037static int hist_browser__fprintf_hierarchy_entry(struct hist_browser *browser,
2038 struct hist_entry *he,
2039 FILE *fp, int level)
2040{
2041 char s[8192];
2042 int printed = 0;
2043 char folded_sign = ' ';
2044 struct perf_hpp hpp = {
2045 .buf = s,
2046 .size = sizeof(s),
2047 };
2048 struct perf_hpp_fmt *fmt;
2049 struct perf_hpp_list_node *fmt_node;
2050 bool first = true;
2051 int ret;
2052 int hierarchy_indent = (he->hists->nr_hpp_node - 2) * HIERARCHY_INDENT;
2053
2054 printed = fprintf(fp, "%*s", level * HIERARCHY_INDENT, "");
2055
2056 folded_sign = hist_entry__folded(he);
2057 printed += fprintf(fp, "%c", folded_sign);
2058
2059 /* the first hpp_list_node is for overhead columns */
2060 fmt_node = list_first_entry(&he->hists->hpp_formats,
2061 struct perf_hpp_list_node, list);
2062 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
2063 if (!first) {
2064 ret = scnprintf(hpp.buf, hpp.size, " ");
2065 advance_hpp(&hpp, ret);
2066 } else
2067 first = false;
2068
2069 ret = fmt->entry(fmt, &hpp, he);
2070 advance_hpp(&hpp, ret);
2071 }
2072
2073 ret = scnprintf(hpp.buf, hpp.size, "%*s", hierarchy_indent, "");
2074 advance_hpp(&hpp, ret);
2075
2076 perf_hpp_list__for_each_format(he->hpp_list, fmt) {
2077 ret = scnprintf(hpp.buf, hpp.size, " ");
2078 advance_hpp(&hpp, ret);
2079
2080 ret = fmt->entry(fmt, &hpp, he);
2081 advance_hpp(&hpp, ret);
2082 }
2083
2084 strim(s);
2085 printed += fprintf(fp, "%s\n", s);
2086
2087 if (he->leaf && folded_sign == '-') {
2088 printed += hist_browser__fprintf_callchain(browser, he, fp,
2089 he->depth + 1);
2090 }
2091
2092 return printed;
2093}
2094
2095static int hist_browser__fprintf(struct hist_browser *browser, FILE *fp)
2096{
2097 struct rb_node *nd = hists__filter_entries(rb_first(browser->b.entries),
2098 browser->min_pcnt);
2099 int printed = 0;
2100
2101 while (nd) {
2102 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
2103
2104 if (symbol_conf.report_hierarchy) {
2105 printed += hist_browser__fprintf_hierarchy_entry(browser,
2106 h, fp,
2107 h->depth);
2108 } else {
2109 printed += hist_browser__fprintf_entry(browser, h, fp);
2110 }
2111
2112 nd = hists__filter_entries(rb_hierarchy_next(nd),
2113 browser->min_pcnt);
2114 }
2115
2116 return printed;
2117}
2118
2119static int hist_browser__dump(struct hist_browser *browser)
2120{
2121 char filename[64];
2122 FILE *fp;
2123
2124 while (1) {
2125 scnprintf(filename, sizeof(filename), "perf.hist.%d", browser->print_seq);
2126 if (access(filename, F_OK))
2127 break;
2128 /*
2129 * XXX: Just an arbitrary lazy upper limit
2130 */
2131 if (++browser->print_seq == 8192) {
2132 ui_helpline__fpush("Too many perf.hist.N files, nothing written!");
2133 return -1;
2134 }
2135 }
2136
2137 fp = fopen(filename, "w");
2138 if (fp == NULL) {
2139 char bf[64];
2140 const char *err = str_error_r(errno, bf, sizeof(bf));
2141 ui_helpline__fpush("Couldn't write to %s: %s", filename, err);
2142 return -1;
2143 }
2144
2145 ++browser->print_seq;
2146 hist_browser__fprintf(browser, fp);
2147 fclose(fp);
2148 ui_helpline__fpush("%s written!", filename);
2149
2150 return 0;
2151}
2152
2153void hist_browser__init(struct hist_browser *browser,
2154 struct hists *hists)
2155{
2156 struct perf_hpp_fmt *fmt;
2157
2158 browser->hists = hists;
2159 browser->b.refresh = hist_browser__refresh;
2160 browser->b.refresh_dimensions = hist_browser__refresh_dimensions;
2161 browser->b.seek = ui_browser__hists_seek;
2162 browser->b.use_navkeypressed = true;
2163 browser->show_headers = symbol_conf.show_hist_headers;
2164 hist_browser__set_title_space(browser);
2165
2166 if (symbol_conf.report_hierarchy) {
2167 struct perf_hpp_list_node *fmt_node;
2168
2169 /* count overhead columns (in the first node) */
2170 fmt_node = list_first_entry(&hists->hpp_formats,
2171 struct perf_hpp_list_node, list);
2172 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt)
2173 ++browser->b.columns;
2174
2175 /* add a single column for whole hierarchy sort keys*/
2176 ++browser->b.columns;
2177 } else {
2178 hists__for_each_format(hists, fmt)
2179 ++browser->b.columns;
2180 }
2181
2182 hists__reset_column_width(hists);
2183}
2184
2185struct hist_browser *hist_browser__new(struct hists *hists)
2186{
2187 struct hist_browser *browser = zalloc(sizeof(*browser));
2188
2189 if (browser)
2190 hist_browser__init(browser, hists);
2191
2192 return browser;
2193}
2194
2195static struct hist_browser *
2196perf_evsel_browser__new(struct evsel *evsel,
2197 struct hist_browser_timer *hbt,
2198 struct perf_env *env,
2199 struct annotation_options *annotation_opts)
2200{
2201 struct hist_browser *browser = hist_browser__new(evsel__hists(evsel));
2202
2203 if (browser) {
2204 browser->hbt = hbt;
2205 browser->env = env;
2206 browser->title = hists_browser__scnprintf_title;
2207 browser->annotation_opts = annotation_opts;
2208 }
2209 return browser;
2210}
2211
2212void hist_browser__delete(struct hist_browser *browser)
2213{
2214 free(browser);
2215}
2216
2217static struct hist_entry *hist_browser__selected_entry(struct hist_browser *browser)
2218{
2219 return browser->he_selection;
2220}
2221
2222static struct thread *hist_browser__selected_thread(struct hist_browser *browser)
2223{
2224 return browser->he_selection->thread;
2225}
2226
2227/* Check whether the browser is for 'top' or 'report' */
2228static inline bool is_report_browser(void *timer)
2229{
2230 return timer == NULL;
2231}
2232
2233static int hists_browser__scnprintf_title(struct hist_browser *browser, char *bf, size_t size)
2234{
2235 struct hist_browser_timer *hbt = browser->hbt;
2236 int printed = __hists__scnprintf_title(browser->hists, bf, size, !is_report_browser(hbt));
2237
2238 if (!is_report_browser(hbt)) {
2239 struct perf_top *top = hbt->arg;
2240
2241 printed += scnprintf(bf + printed, size - printed,
2242 " lost: %" PRIu64 "/%" PRIu64,
2243 top->lost, top->lost_total);
2244
2245 printed += scnprintf(bf + printed, size - printed,
2246 " drop: %" PRIu64 "/%" PRIu64,
2247 top->drop, top->drop_total);
2248
2249 if (top->zero)
2250 printed += scnprintf(bf + printed, size - printed, " [z]");
2251
2252 perf_top__reset_sample_counters(top);
2253 }
2254
2255
2256 return printed;
2257}
2258
2259static inline void free_popup_options(char **options, int n)
2260{
2261 int i;
2262
2263 for (i = 0; i < n; ++i)
2264 zfree(&options[i]);
2265}
2266
2267/*
2268 * Only runtime switching of perf data file will make "input_name" point
2269 * to a malloced buffer. So add "is_input_name_malloced" flag to decide
2270 * whether we need to call free() for current "input_name" during the switch.
2271 */
2272static bool is_input_name_malloced = false;
2273
2274static int switch_data_file(void)
2275{
2276 char *pwd, *options[32], *abs_path[32], *tmp;
2277 DIR *pwd_dir;
2278 int nr_options = 0, choice = -1, ret = -1;
2279 struct dirent *dent;
2280
2281 pwd = getenv("PWD");
2282 if (!pwd)
2283 return ret;
2284
2285 pwd_dir = opendir(pwd);
2286 if (!pwd_dir)
2287 return ret;
2288
2289 memset(options, 0, sizeof(options));
2290 memset(abs_path, 0, sizeof(abs_path));
2291
2292 while ((dent = readdir(pwd_dir))) {
2293 char path[PATH_MAX];
2294 u64 magic;
2295 char *name = dent->d_name;
2296 FILE *file;
2297
2298 if (!(dent->d_type == DT_REG))
2299 continue;
2300
2301 snprintf(path, sizeof(path), "%s/%s", pwd, name);
2302
2303 file = fopen(path, "r");
2304 if (!file)
2305 continue;
2306
2307 if (fread(&magic, 1, 8, file) < 8)
2308 goto close_file_and_continue;
2309
2310 if (is_perf_magic(magic)) {
2311 options[nr_options] = strdup(name);
2312 if (!options[nr_options])
2313 goto close_file_and_continue;
2314
2315 abs_path[nr_options] = strdup(path);
2316 if (!abs_path[nr_options]) {
2317 zfree(&options[nr_options]);
2318 ui__warning("Can't search all data files due to memory shortage.\n");
2319 fclose(file);
2320 break;
2321 }
2322
2323 nr_options++;
2324 }
2325
2326close_file_and_continue:
2327 fclose(file);
2328 if (nr_options >= 32) {
2329 ui__warning("Too many perf data files in PWD!\n"
2330 "Only the first 32 files will be listed.\n");
2331 break;
2332 }
2333 }
2334 closedir(pwd_dir);
2335
2336 if (nr_options) {
2337 choice = ui__popup_menu(nr_options, options);
2338 if (choice < nr_options && choice >= 0) {
2339 tmp = strdup(abs_path[choice]);
2340 if (tmp) {
2341 if (is_input_name_malloced)
2342 free((void *)input_name);
2343 input_name = tmp;
2344 is_input_name_malloced = true;
2345 ret = 0;
2346 } else
2347 ui__warning("Data switch failed due to memory shortage!\n");
2348 }
2349 }
2350
2351 free_popup_options(options, nr_options);
2352 free_popup_options(abs_path, nr_options);
2353 return ret;
2354}
2355
2356struct popup_action {
2357 unsigned long time;
2358 struct thread *thread;
2359 struct map_symbol ms;
2360 int socket;
2361 struct evsel *evsel;
2362 enum rstype rstype;
2363
2364 int (*fn)(struct hist_browser *browser, struct popup_action *act);
2365};
2366
2367static int
2368do_annotate(struct hist_browser *browser, struct popup_action *act)
2369{
2370 struct evsel *evsel;
2371 struct annotation *notes;
2372 struct hist_entry *he;
2373 int err;
2374
2375 if (!browser->annotation_opts->objdump_path &&
2376 perf_env__lookup_objdump(browser->env, &browser->annotation_opts->objdump_path))
2377 return 0;
2378
2379 notes = symbol__annotation(act->ms.sym);
2380 if (!notes->src)
2381 return 0;
2382
2383 evsel = hists_to_evsel(browser->hists);
2384 err = map_symbol__tui_annotate(&act->ms, evsel, browser->hbt,
2385 browser->annotation_opts);
2386 he = hist_browser__selected_entry(browser);
2387 /*
2388 * offer option to annotate the other branch source or target
2389 * (if they exists) when returning from annotate
2390 */
2391 if ((err == 'q' || err == CTRL('c')) && he->branch_info)
2392 return 1;
2393
2394 ui_browser__update_nr_entries(&browser->b, browser->hists->nr_entries);
2395 if (err)
2396 ui_browser__handle_resize(&browser->b);
2397 return 0;
2398}
2399
2400static int
2401add_annotate_opt(struct hist_browser *browser __maybe_unused,
2402 struct popup_action *act, char **optstr,
2403 struct map *map, struct symbol *sym)
2404{
2405 if (sym == NULL || map->dso->annotate_warned)
2406 return 0;
2407
2408 if (asprintf(optstr, "Annotate %s", sym->name) < 0)
2409 return 0;
2410
2411 act->ms.map = map;
2412 act->ms.sym = sym;
2413 act->fn = do_annotate;
2414 return 1;
2415}
2416
2417static int
2418do_zoom_thread(struct hist_browser *browser, struct popup_action *act)
2419{
2420 struct thread *thread = act->thread;
2421
2422 if ((!hists__has(browser->hists, thread) &&
2423 !hists__has(browser->hists, comm)) || thread == NULL)
2424 return 0;
2425
2426 if (browser->hists->thread_filter) {
2427 pstack__remove(browser->pstack, &browser->hists->thread_filter);
2428 perf_hpp__set_elide(HISTC_THREAD, false);
2429 thread__zput(browser->hists->thread_filter);
2430 ui_helpline__pop();
2431 } else {
2432 if (hists__has(browser->hists, thread)) {
2433 ui_helpline__fpush("To zoom out press ESC or ENTER + \"Zoom out of %s(%d) thread\"",
2434 thread->comm_set ? thread__comm_str(thread) : "",
2435 thread->tid);
2436 } else {
2437 ui_helpline__fpush("To zoom out press ESC or ENTER + \"Zoom out of %s thread\"",
2438 thread->comm_set ? thread__comm_str(thread) : "");
2439 }
2440
2441 browser->hists->thread_filter = thread__get(thread);
2442 perf_hpp__set_elide(HISTC_THREAD, false);
2443 pstack__push(browser->pstack, &browser->hists->thread_filter);
2444 }
2445
2446 hists__filter_by_thread(browser->hists);
2447 hist_browser__reset(browser);
2448 return 0;
2449}
2450
2451static int
2452add_thread_opt(struct hist_browser *browser, struct popup_action *act,
2453 char **optstr, struct thread *thread)
2454{
2455 int ret;
2456
2457 if ((!hists__has(browser->hists, thread) &&
2458 !hists__has(browser->hists, comm)) || thread == NULL)
2459 return 0;
2460
2461 if (hists__has(browser->hists, thread)) {
2462 ret = asprintf(optstr, "Zoom %s %s(%d) thread",
2463 browser->hists->thread_filter ? "out of" : "into",
2464 thread->comm_set ? thread__comm_str(thread) : "",
2465 thread->tid);
2466 } else {
2467 ret = asprintf(optstr, "Zoom %s %s thread",
2468 browser->hists->thread_filter ? "out of" : "into",
2469 thread->comm_set ? thread__comm_str(thread) : "");
2470 }
2471 if (ret < 0)
2472 return 0;
2473
2474 act->thread = thread;
2475 act->fn = do_zoom_thread;
2476 return 1;
2477}
2478
2479static int
2480do_zoom_dso(struct hist_browser *browser, struct popup_action *act)
2481{
2482 struct map *map = act->ms.map;
2483
2484 if (!hists__has(browser->hists, dso) || map == NULL)
2485 return 0;
2486
2487 if (browser->hists->dso_filter) {
2488 pstack__remove(browser->pstack, &browser->hists->dso_filter);
2489 perf_hpp__set_elide(HISTC_DSO, false);
2490 browser->hists->dso_filter = NULL;
2491 ui_helpline__pop();
2492 } else {
2493 ui_helpline__fpush("To zoom out press ESC or ENTER + \"Zoom out of %s DSO\"",
2494 __map__is_kernel(map) ? "the Kernel" : map->dso->short_name);
2495 browser->hists->dso_filter = map->dso;
2496 perf_hpp__set_elide(HISTC_DSO, true);
2497 pstack__push(browser->pstack, &browser->hists->dso_filter);
2498 }
2499
2500 hists__filter_by_dso(browser->hists);
2501 hist_browser__reset(browser);
2502 return 0;
2503}
2504
2505static int
2506add_dso_opt(struct hist_browser *browser, struct popup_action *act,
2507 char **optstr, struct map *map)
2508{
2509 if (!hists__has(browser->hists, dso) || map == NULL)
2510 return 0;
2511
2512 if (asprintf(optstr, "Zoom %s %s DSO",
2513 browser->hists->dso_filter ? "out of" : "into",
2514 __map__is_kernel(map) ? "the Kernel" : map->dso->short_name) < 0)
2515 return 0;
2516
2517 act->ms.map = map;
2518 act->fn = do_zoom_dso;
2519 return 1;
2520}
2521
2522static int
2523do_browse_map(struct hist_browser *browser __maybe_unused,
2524 struct popup_action *act)
2525{
2526 map__browse(act->ms.map);
2527 return 0;
2528}
2529
2530static int
2531add_map_opt(struct hist_browser *browser,
2532 struct popup_action *act, char **optstr, struct map *map)
2533{
2534 if (!hists__has(browser->hists, dso) || map == NULL)
2535 return 0;
2536
2537 if (asprintf(optstr, "Browse map details") < 0)
2538 return 0;
2539
2540 act->ms.map = map;
2541 act->fn = do_browse_map;
2542 return 1;
2543}
2544
2545static int
2546do_run_script(struct hist_browser *browser __maybe_unused,
2547 struct popup_action *act)
2548{
2549 char *script_opt;
2550 int len;
2551 int n = 0;
2552
2553 len = 100;
2554 if (act->thread)
2555 len += strlen(thread__comm_str(act->thread));
2556 else if (act->ms.sym)
2557 len += strlen(act->ms.sym->name);
2558 script_opt = malloc(len);
2559 if (!script_opt)
2560 return -1;
2561
2562 script_opt[0] = 0;
2563 if (act->thread) {
2564 n = scnprintf(script_opt, len, " -c %s ",
2565 thread__comm_str(act->thread));
2566 } else if (act->ms.sym) {
2567 n = scnprintf(script_opt, len, " -S %s ",
2568 act->ms.sym->name);
2569 }
2570
2571 if (act->time) {
2572 char start[32], end[32];
2573 unsigned long starttime = act->time;
2574 unsigned long endtime = act->time + symbol_conf.time_quantum;
2575
2576 if (starttime == endtime) { /* Display 1ms as fallback */
2577 starttime -= 1*NSEC_PER_MSEC;
2578 endtime += 1*NSEC_PER_MSEC;
2579 }
2580 timestamp__scnprintf_usec(starttime, start, sizeof start);
2581 timestamp__scnprintf_usec(endtime, end, sizeof end);
2582 n += snprintf(script_opt + n, len - n, " --time %s,%s", start, end);
2583 }
2584
2585 script_browse(script_opt, act->evsel);
2586 free(script_opt);
2587 return 0;
2588}
2589
2590static int
2591do_res_sample_script(struct hist_browser *browser __maybe_unused,
2592 struct popup_action *act)
2593{
2594 struct hist_entry *he;
2595
2596 he = hist_browser__selected_entry(browser);
2597 res_sample_browse(he->res_samples, he->num_res, act->evsel, act->rstype);
2598 return 0;
2599}
2600
2601static int
2602add_script_opt_2(struct hist_browser *browser __maybe_unused,
2603 struct popup_action *act, char **optstr,
2604 struct thread *thread, struct symbol *sym,
2605 struct evsel *evsel, const char *tstr)
2606{
2607
2608 if (thread) {
2609 if (asprintf(optstr, "Run scripts for samples of thread [%s]%s",
2610 thread__comm_str(thread), tstr) < 0)
2611 return 0;
2612 } else if (sym) {
2613 if (asprintf(optstr, "Run scripts for samples of symbol [%s]%s",
2614 sym->name, tstr) < 0)
2615 return 0;
2616 } else {
2617 if (asprintf(optstr, "Run scripts for all samples%s", tstr) < 0)
2618 return 0;
2619 }
2620
2621 act->thread = thread;
2622 act->ms.sym = sym;
2623 act->evsel = evsel;
2624 act->fn = do_run_script;
2625 return 1;
2626}
2627
2628static int
2629add_script_opt(struct hist_browser *browser,
2630 struct popup_action *act, char **optstr,
2631 struct thread *thread, struct symbol *sym,
2632 struct evsel *evsel)
2633{
2634 int n, j;
2635 struct hist_entry *he;
2636
2637 n = add_script_opt_2(browser, act, optstr, thread, sym, evsel, "");
2638
2639 he = hist_browser__selected_entry(browser);
2640 if (sort_order && strstr(sort_order, "time")) {
2641 char tstr[128];
2642
2643 optstr++;
2644 act++;
2645 j = sprintf(tstr, " in ");
2646 j += timestamp__scnprintf_usec(he->time, tstr + j,
2647 sizeof tstr - j);
2648 j += sprintf(tstr + j, "-");
2649 timestamp__scnprintf_usec(he->time + symbol_conf.time_quantum,
2650 tstr + j, sizeof tstr - j);
2651 n += add_script_opt_2(browser, act, optstr, thread, sym,
2652 evsel, tstr);
2653 act->time = he->time;
2654 }
2655 return n;
2656}
2657
2658static int
2659add_res_sample_opt(struct hist_browser *browser __maybe_unused,
2660 struct popup_action *act, char **optstr,
2661 struct res_sample *res_sample,
2662 struct evsel *evsel,
2663 enum rstype type)
2664{
2665 if (!res_sample)
2666 return 0;
2667
2668 if (asprintf(optstr, "Show context for individual samples %s",
2669 type == A_ASM ? "with assembler" :
2670 type == A_SOURCE ? "with source" : "") < 0)
2671 return 0;
2672
2673 act->fn = do_res_sample_script;
2674 act->evsel = evsel;
2675 act->rstype = type;
2676 return 1;
2677}
2678
2679static int
2680do_switch_data(struct hist_browser *browser __maybe_unused,
2681 struct popup_action *act __maybe_unused)
2682{
2683 if (switch_data_file()) {
2684 ui__warning("Won't switch the data files due to\n"
2685 "no valid data file get selected!\n");
2686 return 0;
2687 }
2688
2689 return K_SWITCH_INPUT_DATA;
2690}
2691
2692static int
2693add_switch_opt(struct hist_browser *browser,
2694 struct popup_action *act, char **optstr)
2695{
2696 if (!is_report_browser(browser->hbt))
2697 return 0;
2698
2699 if (asprintf(optstr, "Switch to another data file in PWD") < 0)
2700 return 0;
2701
2702 act->fn = do_switch_data;
2703 return 1;
2704}
2705
2706static int
2707do_exit_browser(struct hist_browser *browser __maybe_unused,
2708 struct popup_action *act __maybe_unused)
2709{
2710 return 0;
2711}
2712
2713static int
2714add_exit_opt(struct hist_browser *browser __maybe_unused,
2715 struct popup_action *act, char **optstr)
2716{
2717 if (asprintf(optstr, "Exit") < 0)
2718 return 0;
2719
2720 act->fn = do_exit_browser;
2721 return 1;
2722}
2723
2724static int
2725do_zoom_socket(struct hist_browser *browser, struct popup_action *act)
2726{
2727 if (!hists__has(browser->hists, socket) || act->socket < 0)
2728 return 0;
2729
2730 if (browser->hists->socket_filter > -1) {
2731 pstack__remove(browser->pstack, &browser->hists->socket_filter);
2732 browser->hists->socket_filter = -1;
2733 perf_hpp__set_elide(HISTC_SOCKET, false);
2734 } else {
2735 browser->hists->socket_filter = act->socket;
2736 perf_hpp__set_elide(HISTC_SOCKET, true);
2737 pstack__push(browser->pstack, &browser->hists->socket_filter);
2738 }
2739
2740 hists__filter_by_socket(browser->hists);
2741 hist_browser__reset(browser);
2742 return 0;
2743}
2744
2745static int
2746add_socket_opt(struct hist_browser *browser, struct popup_action *act,
2747 char **optstr, int socket_id)
2748{
2749 if (!hists__has(browser->hists, socket) || socket_id < 0)
2750 return 0;
2751
2752 if (asprintf(optstr, "Zoom %s Processor Socket %d",
2753 (browser->hists->socket_filter > -1) ? "out of" : "into",
2754 socket_id) < 0)
2755 return 0;
2756
2757 act->socket = socket_id;
2758 act->fn = do_zoom_socket;
2759 return 1;
2760}
2761
2762static void hist_browser__update_nr_entries(struct hist_browser *hb)
2763{
2764 u64 nr_entries = 0;
2765 struct rb_node *nd = rb_first_cached(&hb->hists->entries);
2766
2767 if (hb->min_pcnt == 0 && !symbol_conf.report_hierarchy) {
2768 hb->nr_non_filtered_entries = hb->hists->nr_non_filtered_entries;
2769 return;
2770 }
2771
2772 while ((nd = hists__filter_entries(nd, hb->min_pcnt)) != NULL) {
2773 nr_entries++;
2774 nd = rb_hierarchy_next(nd);
2775 }
2776
2777 hb->nr_non_filtered_entries = nr_entries;
2778 hb->nr_hierarchy_entries = nr_entries;
2779}
2780
2781static void hist_browser__update_percent_limit(struct hist_browser *hb,
2782 double percent)
2783{
2784 struct hist_entry *he;
2785 struct rb_node *nd = rb_first_cached(&hb->hists->entries);
2786 u64 total = hists__total_period(hb->hists);
2787 u64 min_callchain_hits = total * (percent / 100);
2788
2789 hb->min_pcnt = callchain_param.min_percent = percent;
2790
2791 while ((nd = hists__filter_entries(nd, hb->min_pcnt)) != NULL) {
2792 he = rb_entry(nd, struct hist_entry, rb_node);
2793
2794 if (he->has_no_entry) {
2795 he->has_no_entry = false;
2796 he->nr_rows = 0;
2797 }
2798
2799 if (!he->leaf || !hist_entry__has_callchains(he) || !symbol_conf.use_callchain)
2800 goto next;
2801
2802 if (callchain_param.mode == CHAIN_GRAPH_REL) {
2803 total = he->stat.period;
2804
2805 if (symbol_conf.cumulate_callchain)
2806 total = he->stat_acc->period;
2807
2808 min_callchain_hits = total * (percent / 100);
2809 }
2810
2811 callchain_param.sort(&he->sorted_chain, he->callchain,
2812 min_callchain_hits, &callchain_param);
2813
2814next:
2815 nd = __rb_hierarchy_next(nd, HMD_FORCE_CHILD);
2816
2817 /* force to re-evaluate folding state of callchains */
2818 he->init_have_children = false;
2819 hist_entry__set_folding(he, hb, false);
2820 }
2821}
2822
2823static int perf_evsel__hists_browse(struct evsel *evsel, int nr_events,
2824 const char *helpline,
2825 bool left_exits,
2826 struct hist_browser_timer *hbt,
2827 float min_pcnt,
2828 struct perf_env *env,
2829 bool warn_lost_event,
2830 struct annotation_options *annotation_opts)
2831{
2832 struct hists *hists = evsel__hists(evsel);
2833 struct hist_browser *browser = perf_evsel_browser__new(evsel, hbt, env, annotation_opts);
2834 struct branch_info *bi = NULL;
2835#define MAX_OPTIONS 16
2836 char *options[MAX_OPTIONS];
2837 struct popup_action actions[MAX_OPTIONS];
2838 int nr_options = 0;
2839 int key = -1;
2840 char buf[64];
2841 int delay_secs = hbt ? hbt->refresh : 0;
2842
2843#define HIST_BROWSER_HELP_COMMON \
2844 "h/?/F1 Show this window\n" \
2845 "UP/DOWN/PGUP\n" \
2846 "PGDN/SPACE Navigate\n" \
2847 "q/ESC/CTRL+C Exit browser or go back to previous screen\n\n" \
2848 "For multiple event sessions:\n\n" \
2849 "TAB/UNTAB Switch events\n\n" \
2850 "For symbolic views (--sort has sym):\n\n" \
2851 "ENTER Zoom into DSO/Threads & Annotate current symbol\n" \
2852 "ESC Zoom out\n" \
2853 "a Annotate current symbol\n" \
2854 "C Collapse all callchains\n" \
2855 "d Zoom into current DSO\n" \
2856 "E Expand all callchains\n" \
2857 "F Toggle percentage of filtered entries\n" \
2858 "H Display column headers\n" \
2859 "L Change percent limit\n" \
2860 "m Display context menu\n" \
2861 "S Zoom into current Processor Socket\n" \
2862
2863 /* help messages are sorted by lexical order of the hotkey */
2864 static const char report_help[] = HIST_BROWSER_HELP_COMMON
2865 "i Show header information\n"
2866 "P Print histograms to perf.hist.N\n"
2867 "r Run available scripts\n"
2868 "s Switch to another data file in PWD\n"
2869 "t Zoom into current Thread\n"
2870 "V Verbose (DSO names in callchains, etc)\n"
2871 "/ Filter symbol by name";
2872 static const char top_help[] = HIST_BROWSER_HELP_COMMON
2873 "P Print histograms to perf.hist.N\n"
2874 "t Zoom into current Thread\n"
2875 "V Verbose (DSO names in callchains, etc)\n"
2876 "z Toggle zeroing of samples\n"
2877 "f Enable/Disable events\n"
2878 "/ Filter symbol by name";
2879
2880 if (browser == NULL)
2881 return -1;
2882
2883 /* reset abort key so that it can get Ctrl-C as a key */
2884 SLang_reset_tty();
2885 SLang_init_tty(0, 0, 0);
2886
2887 if (min_pcnt)
2888 browser->min_pcnt = min_pcnt;
2889 hist_browser__update_nr_entries(browser);
2890
2891 browser->pstack = pstack__new(3);
2892 if (browser->pstack == NULL)
2893 goto out;
2894
2895 ui_helpline__push(helpline);
2896
2897 memset(options, 0, sizeof(options));
2898 memset(actions, 0, sizeof(actions));
2899
2900 if (symbol_conf.col_width_list_str)
2901 perf_hpp__set_user_width(symbol_conf.col_width_list_str);
2902
2903 if (!is_report_browser(hbt))
2904 browser->b.no_samples_msg = "Collecting samples...";
2905
2906 while (1) {
2907 struct thread *thread = NULL;
2908 struct map *map = NULL;
2909 int choice = 0;
2910 int socked_id = -1;
2911
2912 nr_options = 0;
2913
2914 key = hist_browser__run(browser, helpline,
2915 warn_lost_event);
2916
2917 if (browser->he_selection != NULL) {
2918 thread = hist_browser__selected_thread(browser);
2919 map = browser->selection->map;
2920 socked_id = browser->he_selection->socket;
2921 }
2922 switch (key) {
2923 case K_TAB:
2924 case K_UNTAB:
2925 if (nr_events == 1)
2926 continue;
2927 /*
2928 * Exit the browser, let hists__browser_tree
2929 * go to the next or previous
2930 */
2931 goto out_free_stack;
2932 case 'a':
2933 if (!hists__has(hists, sym)) {
2934 ui_browser__warning(&browser->b, delay_secs * 2,
2935 "Annotation is only available for symbolic views, "
2936 "include \"sym*\" in --sort to use it.");
2937 continue;
2938 }
2939
2940 if (browser->selection == NULL ||
2941 browser->selection->sym == NULL ||
2942 browser->selection->map->dso->annotate_warned)
2943 continue;
2944
2945 actions->ms.map = browser->selection->map;
2946 actions->ms.sym = browser->selection->sym;
2947 do_annotate(browser, actions);
2948 continue;
2949 case 'P':
2950 hist_browser__dump(browser);
2951 continue;
2952 case 'd':
2953 actions->ms.map = map;
2954 do_zoom_dso(browser, actions);
2955 continue;
2956 case 'V':
2957 verbose = (verbose + 1) % 4;
2958 browser->show_dso = verbose > 0;
2959 ui_helpline__fpush("Verbosity level set to %d\n",
2960 verbose);
2961 continue;
2962 case 't':
2963 actions->thread = thread;
2964 do_zoom_thread(browser, actions);
2965 continue;
2966 case 'S':
2967 actions->socket = socked_id;
2968 do_zoom_socket(browser, actions);
2969 continue;
2970 case '/':
2971 if (ui_browser__input_window("Symbol to show",
2972 "Please enter the name of symbol you want to see.\n"
2973 "To remove the filter later, press / + ENTER.",
2974 buf, "ENTER: OK, ESC: Cancel",
2975 delay_secs * 2) == K_ENTER) {
2976 hists->symbol_filter_str = *buf ? buf : NULL;
2977 hists__filter_by_symbol(hists);
2978 hist_browser__reset(browser);
2979 }
2980 continue;
2981 case 'r':
2982 if (is_report_browser(hbt)) {
2983 actions->thread = NULL;
2984 actions->ms.sym = NULL;
2985 do_run_script(browser, actions);
2986 }
2987 continue;
2988 case 's':
2989 if (is_report_browser(hbt)) {
2990 key = do_switch_data(browser, actions);
2991 if (key == K_SWITCH_INPUT_DATA)
2992 goto out_free_stack;
2993 }
2994 continue;
2995 case 'i':
2996 /* env->arch is NULL for live-mode (i.e. perf top) */
2997 if (env->arch)
2998 tui__header_window(env);
2999 continue;
3000 case 'F':
3001 symbol_conf.filter_relative ^= 1;
3002 continue;
3003 case 'z':
3004 if (!is_report_browser(hbt)) {
3005 struct perf_top *top = hbt->arg;
3006
3007 top->zero = !top->zero;
3008 }
3009 continue;
3010 case 'L':
3011 if (ui_browser__input_window("Percent Limit",
3012 "Please enter the value you want to hide entries under that percent.",
3013 buf, "ENTER: OK, ESC: Cancel",
3014 delay_secs * 2) == K_ENTER) {
3015 char *end;
3016 double new_percent = strtod(buf, &end);
3017
3018 if (new_percent < 0 || new_percent > 100) {
3019 ui_browser__warning(&browser->b, delay_secs * 2,
3020 "Invalid percent: %.2f", new_percent);
3021 continue;
3022 }
3023
3024 hist_browser__update_percent_limit(browser, new_percent);
3025 hist_browser__reset(browser);
3026 }
3027 continue;
3028 case K_F1:
3029 case 'h':
3030 case '?':
3031 ui_browser__help_window(&browser->b,
3032 is_report_browser(hbt) ? report_help : top_help);
3033 continue;
3034 case K_ENTER:
3035 case K_RIGHT:
3036 case 'm':
3037 /* menu */
3038 break;
3039 case K_ESC:
3040 case K_LEFT: {
3041 const void *top;
3042
3043 if (pstack__empty(browser->pstack)) {
3044 /*
3045 * Go back to the perf_evsel_menu__run or other user
3046 */
3047 if (left_exits)
3048 goto out_free_stack;
3049
3050 if (key == K_ESC &&
3051 ui_browser__dialog_yesno(&browser->b,
3052 "Do you really want to exit?"))
3053 goto out_free_stack;
3054
3055 continue;
3056 }
3057 top = pstack__peek(browser->pstack);
3058 if (top == &browser->hists->dso_filter) {
3059 /*
3060 * No need to set actions->dso here since
3061 * it's just to remove the current filter.
3062 * Ditto for thread below.
3063 */
3064 do_zoom_dso(browser, actions);
3065 } else if (top == &browser->hists->thread_filter) {
3066 do_zoom_thread(browser, actions);
3067 } else if (top == &browser->hists->socket_filter) {
3068 do_zoom_socket(browser, actions);
3069 }
3070 continue;
3071 }
3072 case 'q':
3073 case CTRL('c'):
3074 goto out_free_stack;
3075 case 'f':
3076 if (!is_report_browser(hbt)) {
3077 struct perf_top *top = hbt->arg;
3078
3079 perf_evlist__toggle_enable(top->evlist);
3080 /*
3081 * No need to refresh, resort/decay histogram
3082 * entries if we are not collecting samples:
3083 */
3084 if (top->evlist->enabled) {
3085 helpline = "Press 'f' to disable the events or 'h' to see other hotkeys";
3086 hbt->refresh = delay_secs;
3087 } else {
3088 helpline = "Press 'f' again to re-enable the events";
3089 hbt->refresh = 0;
3090 }
3091 continue;
3092 }
3093 /* Fall thru */
3094 default:
3095 helpline = "Press '?' for help on key bindings";
3096 continue;
3097 }
3098
3099 if (!hists__has(hists, sym) || browser->selection == NULL)
3100 goto skip_annotation;
3101
3102 if (sort__mode == SORT_MODE__BRANCH) {
3103
3104 if (browser->he_selection)
3105 bi = browser->he_selection->branch_info;
3106
3107 if (bi == NULL)
3108 goto skip_annotation;
3109
3110 nr_options += add_annotate_opt(browser,
3111 &actions[nr_options],
3112 &options[nr_options],
3113 bi->from.map,
3114 bi->from.sym);
3115 if (bi->to.sym != bi->from.sym)
3116 nr_options += add_annotate_opt(browser,
3117 &actions[nr_options],
3118 &options[nr_options],
3119 bi->to.map,
3120 bi->to.sym);
3121 } else {
3122 nr_options += add_annotate_opt(browser,
3123 &actions[nr_options],
3124 &options[nr_options],
3125 browser->selection->map,
3126 browser->selection->sym);
3127 }
3128skip_annotation:
3129 nr_options += add_thread_opt(browser, &actions[nr_options],
3130 &options[nr_options], thread);
3131 nr_options += add_dso_opt(browser, &actions[nr_options],
3132 &options[nr_options], map);
3133 nr_options += add_map_opt(browser, &actions[nr_options],
3134 &options[nr_options],
3135 browser->selection ?
3136 browser->selection->map : NULL);
3137 nr_options += add_socket_opt(browser, &actions[nr_options],
3138 &options[nr_options],
3139 socked_id);
3140 /* perf script support */
3141 if (!is_report_browser(hbt))
3142 goto skip_scripting;
3143
3144 if (browser->he_selection) {
3145 if (hists__has(hists, thread) && thread) {
3146 nr_options += add_script_opt(browser,
3147 &actions[nr_options],
3148 &options[nr_options],
3149 thread, NULL, evsel);
3150 }
3151 /*
3152 * Note that browser->selection != NULL
3153 * when browser->he_selection is not NULL,
3154 * so we don't need to check browser->selection
3155 * before fetching browser->selection->sym like what
3156 * we do before fetching browser->selection->map.
3157 *
3158 * See hist_browser__show_entry.
3159 */
3160 if (hists__has(hists, sym) && browser->selection->sym) {
3161 nr_options += add_script_opt(browser,
3162 &actions[nr_options],
3163 &options[nr_options],
3164 NULL, browser->selection->sym,
3165 evsel);
3166 }
3167 }
3168 nr_options += add_script_opt(browser, &actions[nr_options],
3169 &options[nr_options], NULL, NULL, evsel);
3170 nr_options += add_res_sample_opt(browser, &actions[nr_options],
3171 &options[nr_options],
3172 hist_browser__selected_entry(browser)->res_samples,
3173 evsel, A_NORMAL);
3174 nr_options += add_res_sample_opt(browser, &actions[nr_options],
3175 &options[nr_options],
3176 hist_browser__selected_entry(browser)->res_samples,
3177 evsel, A_ASM);
3178 nr_options += add_res_sample_opt(browser, &actions[nr_options],
3179 &options[nr_options],
3180 hist_browser__selected_entry(browser)->res_samples,
3181 evsel, A_SOURCE);
3182 nr_options += add_switch_opt(browser, &actions[nr_options],
3183 &options[nr_options]);
3184skip_scripting:
3185 nr_options += add_exit_opt(browser, &actions[nr_options],
3186 &options[nr_options]);
3187
3188 do {
3189 struct popup_action *act;
3190
3191 choice = ui__popup_menu(nr_options, options);
3192 if (choice == -1 || choice >= nr_options)
3193 break;
3194
3195 act = &actions[choice];
3196 key = act->fn(browser, act);
3197 } while (key == 1);
3198
3199 if (key == K_SWITCH_INPUT_DATA)
3200 break;
3201 }
3202out_free_stack:
3203 pstack__delete(browser->pstack);
3204out:
3205 hist_browser__delete(browser);
3206 free_popup_options(options, MAX_OPTIONS);
3207 return key;
3208}
3209
3210struct evsel_menu {
3211 struct ui_browser b;
3212 struct evsel *selection;
3213 struct annotation_options *annotation_opts;
3214 bool lost_events, lost_events_warned;
3215 float min_pcnt;
3216 struct perf_env *env;
3217};
3218
3219static void perf_evsel_menu__write(struct ui_browser *browser,
3220 void *entry, int row)
3221{
3222 struct evsel_menu *menu = container_of(browser,
3223 struct evsel_menu, b);
3224 struct evsel *evsel = list_entry(entry, struct evsel, core.node);
3225 struct hists *hists = evsel__hists(evsel);
3226 bool current_entry = ui_browser__is_current_entry(browser, row);
3227 unsigned long nr_events = hists->stats.nr_events[PERF_RECORD_SAMPLE];
3228 const char *ev_name = perf_evsel__name(evsel);
3229 char bf[256], unit;
3230 const char *warn = " ";
3231 size_t printed;
3232
3233 ui_browser__set_color(browser, current_entry ? HE_COLORSET_SELECTED :
3234 HE_COLORSET_NORMAL);
3235
3236 if (perf_evsel__is_group_event(evsel)) {
3237 struct evsel *pos;
3238
3239 ev_name = perf_evsel__group_name(evsel);
3240
3241 for_each_group_member(pos, evsel) {
3242 struct hists *pos_hists = evsel__hists(pos);
3243 nr_events += pos_hists->stats.nr_events[PERF_RECORD_SAMPLE];
3244 }
3245 }
3246
3247 nr_events = convert_unit(nr_events, &unit);
3248 printed = scnprintf(bf, sizeof(bf), "%lu%c%s%s", nr_events,
3249 unit, unit == ' ' ? "" : " ", ev_name);
3250 ui_browser__printf(browser, "%s", bf);
3251
3252 nr_events = hists->stats.nr_events[PERF_RECORD_LOST];
3253 if (nr_events != 0) {
3254 menu->lost_events = true;
3255 if (!current_entry)
3256 ui_browser__set_color(browser, HE_COLORSET_TOP);
3257 nr_events = convert_unit(nr_events, &unit);
3258 printed += scnprintf(bf, sizeof(bf), ": %ld%c%schunks LOST!",
3259 nr_events, unit, unit == ' ' ? "" : " ");
3260 warn = bf;
3261 }
3262
3263 ui_browser__write_nstring(browser, warn, browser->width - printed);
3264
3265 if (current_entry)
3266 menu->selection = evsel;
3267}
3268
3269static int perf_evsel_menu__run(struct evsel_menu *menu,
3270 int nr_events, const char *help,
3271 struct hist_browser_timer *hbt,
3272 bool warn_lost_event)
3273{
3274 struct evlist *evlist = menu->b.priv;
3275 struct evsel *pos;
3276 const char *title = "Available samples";
3277 int delay_secs = hbt ? hbt->refresh : 0;
3278 int key;
3279
3280 if (ui_browser__show(&menu->b, title,
3281 "ESC: exit, ENTER|->: Browse histograms") < 0)
3282 return -1;
3283
3284 while (1) {
3285 key = ui_browser__run(&menu->b, delay_secs);
3286
3287 switch (key) {
3288 case K_TIMER:
3289 if (hbt)
3290 hbt->timer(hbt->arg);
3291
3292 if (!menu->lost_events_warned &&
3293 menu->lost_events &&
3294 warn_lost_event) {
3295 ui_browser__warn_lost_events(&menu->b);
3296 menu->lost_events_warned = true;
3297 }
3298 continue;
3299 case K_RIGHT:
3300 case K_ENTER:
3301 if (!menu->selection)
3302 continue;
3303 pos = menu->selection;
3304browse_hists:
3305 perf_evlist__set_selected(evlist, pos);
3306 /*
3307 * Give the calling tool a chance to populate the non
3308 * default evsel resorted hists tree.
3309 */
3310 if (hbt)
3311 hbt->timer(hbt->arg);
3312 key = perf_evsel__hists_browse(pos, nr_events, help,
3313 true, hbt,
3314 menu->min_pcnt,
3315 menu->env,
3316 warn_lost_event,
3317 menu->annotation_opts);
3318 ui_browser__show_title(&menu->b, title);
3319 switch (key) {
3320 case K_TAB:
3321 if (pos->core.node.next == &evlist->core.entries)
3322 pos = evlist__first(evlist);
3323 else
3324 pos = perf_evsel__next(pos);
3325 goto browse_hists;
3326 case K_UNTAB:
3327 if (pos->core.node.prev == &evlist->core.entries)
3328 pos = evlist__last(evlist);
3329 else
3330 pos = perf_evsel__prev(pos);
3331 goto browse_hists;
3332 case K_SWITCH_INPUT_DATA:
3333 case 'q':
3334 case CTRL('c'):
3335 goto out;
3336 case K_ESC:
3337 default:
3338 continue;
3339 }
3340 case K_LEFT:
3341 continue;
3342 case K_ESC:
3343 if (!ui_browser__dialog_yesno(&menu->b,
3344 "Do you really want to exit?"))
3345 continue;
3346 /* Fall thru */
3347 case 'q':
3348 case CTRL('c'):
3349 goto out;
3350 default:
3351 continue;
3352 }
3353 }
3354
3355out:
3356 ui_browser__hide(&menu->b);
3357 return key;
3358}
3359
3360static bool filter_group_entries(struct ui_browser *browser __maybe_unused,
3361 void *entry)
3362{
3363 struct evsel *evsel = list_entry(entry, struct evsel, core.node);
3364
3365 if (symbol_conf.event_group && !perf_evsel__is_group_leader(evsel))
3366 return true;
3367
3368 return false;
3369}
3370
3371static int __perf_evlist__tui_browse_hists(struct evlist *evlist,
3372 int nr_entries, const char *help,
3373 struct hist_browser_timer *hbt,
3374 float min_pcnt,
3375 struct perf_env *env,
3376 bool warn_lost_event,
3377 struct annotation_options *annotation_opts)
3378{
3379 struct evsel *pos;
3380 struct evsel_menu menu = {
3381 .b = {
3382 .entries = &evlist->core.entries,
3383 .refresh = ui_browser__list_head_refresh,
3384 .seek = ui_browser__list_head_seek,
3385 .write = perf_evsel_menu__write,
3386 .filter = filter_group_entries,
3387 .nr_entries = nr_entries,
3388 .priv = evlist,
3389 },
3390 .min_pcnt = min_pcnt,
3391 .env = env,
3392 .annotation_opts = annotation_opts,
3393 };
3394
3395 ui_helpline__push("Press ESC to exit");
3396
3397 evlist__for_each_entry(evlist, pos) {
3398 const char *ev_name = perf_evsel__name(pos);
3399 size_t line_len = strlen(ev_name) + 7;
3400
3401 if (menu.b.width < line_len)
3402 menu.b.width = line_len;
3403 }
3404
3405 return perf_evsel_menu__run(&menu, nr_entries, help,
3406 hbt, warn_lost_event);
3407}
3408
3409int perf_evlist__tui_browse_hists(struct evlist *evlist, const char *help,
3410 struct hist_browser_timer *hbt,
3411 float min_pcnt,
3412 struct perf_env *env,
3413 bool warn_lost_event,
3414 struct annotation_options *annotation_opts)
3415{
3416 int nr_entries = evlist->core.nr_entries;
3417
3418single_entry:
3419 if (nr_entries == 1) {
3420 struct evsel *first = evlist__first(evlist);
3421
3422 return perf_evsel__hists_browse(first, nr_entries, help,
3423 false, hbt, min_pcnt,
3424 env, warn_lost_event,
3425 annotation_opts);
3426 }
3427
3428 if (symbol_conf.event_group) {
3429 struct evsel *pos;
3430
3431 nr_entries = 0;
3432 evlist__for_each_entry(evlist, pos) {
3433 if (perf_evsel__is_group_leader(pos))
3434 nr_entries++;
3435 }
3436
3437 if (nr_entries == 1)
3438 goto single_entry;
3439 }
3440
3441 return __perf_evlist__tui_browse_hists(evlist, nr_entries, help,
3442 hbt, min_pcnt, env,
3443 warn_lost_event,
3444 annotation_opts);
3445}