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Merge branch 'parisc-4.6-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller...
[deliverable/linux.git] / tools / perf / ui / browsers / hists.c
1 #include <stdio.h>
2 #include <stdlib.h>
3 #include <string.h>
4 #include <linux/rbtree.h>
5
6 #include "../../util/evsel.h"
7 #include "../../util/evlist.h"
8 #include "../../util/hist.h"
9 #include "../../util/pstack.h"
10 #include "../../util/sort.h"
11 #include "../../util/util.h"
12 #include "../../util/top.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 #include "annotate.h"
21
22 struct hist_browser {
23 struct ui_browser b;
24 struct hists *hists;
25 struct hist_entry *he_selection;
26 struct map_symbol *selection;
27 struct hist_browser_timer *hbt;
28 struct pstack *pstack;
29 struct perf_env *env;
30 int print_seq;
31 bool show_dso;
32 bool show_headers;
33 float min_pcnt;
34 u64 nr_non_filtered_entries;
35 u64 nr_hierarchy_entries;
36 u64 nr_callchain_rows;
37 };
38
39 extern void hist_browser__init_hpp(void);
40
41 static int hists__browser_title(struct hists *hists,
42 struct hist_browser_timer *hbt,
43 char *bf, size_t size);
44 static void hist_browser__update_nr_entries(struct hist_browser *hb);
45
46 static struct rb_node *hists__filter_entries(struct rb_node *nd,
47 float min_pcnt);
48
49 static bool hist_browser__has_filter(struct hist_browser *hb)
50 {
51 return hists__has_filter(hb->hists) || hb->min_pcnt || symbol_conf.has_filter;
52 }
53
54 static int hist_browser__get_folding(struct hist_browser *browser)
55 {
56 struct rb_node *nd;
57 struct hists *hists = browser->hists;
58 int unfolded_rows = 0;
59
60 for (nd = rb_first(&hists->entries);
61 (nd = hists__filter_entries(nd, browser->min_pcnt)) != NULL;
62 nd = rb_hierarchy_next(nd)) {
63 struct hist_entry *he =
64 rb_entry(nd, struct hist_entry, rb_node);
65
66 if (he->leaf && he->unfolded)
67 unfolded_rows += he->nr_rows;
68 }
69 return unfolded_rows;
70 }
71
72 static u32 hist_browser__nr_entries(struct hist_browser *hb)
73 {
74 u32 nr_entries;
75
76 if (symbol_conf.report_hierarchy)
77 nr_entries = hb->nr_hierarchy_entries;
78 else if (hist_browser__has_filter(hb))
79 nr_entries = hb->nr_non_filtered_entries;
80 else
81 nr_entries = hb->hists->nr_entries;
82
83 hb->nr_callchain_rows = hist_browser__get_folding(hb);
84 return nr_entries + hb->nr_callchain_rows;
85 }
86
87 static void hist_browser__update_rows(struct hist_browser *hb)
88 {
89 struct ui_browser *browser = &hb->b;
90 u16 header_offset = hb->show_headers ? 1 : 0, index_row;
91
92 browser->rows = browser->height - header_offset;
93 /*
94 * Verify if we were at the last line and that line isn't
95 * visibe because we now show the header line(s).
96 */
97 index_row = browser->index - browser->top_idx;
98 if (index_row >= browser->rows)
99 browser->index -= index_row - browser->rows + 1;
100 }
101
102 static void hist_browser__refresh_dimensions(struct ui_browser *browser)
103 {
104 struct hist_browser *hb = container_of(browser, struct hist_browser, b);
105
106 /* 3 == +/- toggle symbol before actual hist_entry rendering */
107 browser->width = 3 + (hists__sort_list_width(hb->hists) + sizeof("[k]"));
108 /*
109 * FIXME: Just keeping existing behaviour, but this really should be
110 * before updating browser->width, as it will invalidate the
111 * calculation above. Fix this and the fallout in another
112 * changeset.
113 */
114 ui_browser__refresh_dimensions(browser);
115 hist_browser__update_rows(hb);
116 }
117
118 static void hist_browser__gotorc(struct hist_browser *browser, int row, int column)
119 {
120 u16 header_offset = browser->show_headers ? 1 : 0;
121
122 ui_browser__gotorc(&browser->b, row + header_offset, column);
123 }
124
125 static void hist_browser__reset(struct hist_browser *browser)
126 {
127 /*
128 * The hists__remove_entry_filter() already folds non-filtered
129 * entries so we can assume it has 0 callchain rows.
130 */
131 browser->nr_callchain_rows = 0;
132
133 hist_browser__update_nr_entries(browser);
134 browser->b.nr_entries = hist_browser__nr_entries(browser);
135 hist_browser__refresh_dimensions(&browser->b);
136 ui_browser__reset_index(&browser->b);
137 }
138
139 static char tree__folded_sign(bool unfolded)
140 {
141 return unfolded ? '-' : '+';
142 }
143
144 static char hist_entry__folded(const struct hist_entry *he)
145 {
146 return he->has_children ? tree__folded_sign(he->unfolded) : ' ';
147 }
148
149 static char callchain_list__folded(const struct callchain_list *cl)
150 {
151 return cl->has_children ? tree__folded_sign(cl->unfolded) : ' ';
152 }
153
154 static void callchain_list__set_folding(struct callchain_list *cl, bool unfold)
155 {
156 cl->unfolded = unfold ? cl->has_children : false;
157 }
158
159 static int callchain_node__count_rows_rb_tree(struct callchain_node *node)
160 {
161 int n = 0;
162 struct rb_node *nd;
163
164 for (nd = rb_first(&node->rb_root); nd; nd = rb_next(nd)) {
165 struct callchain_node *child = rb_entry(nd, struct callchain_node, rb_node);
166 struct callchain_list *chain;
167 char folded_sign = ' '; /* No children */
168
169 list_for_each_entry(chain, &child->val, list) {
170 ++n;
171 /* We need this because we may not have children */
172 folded_sign = callchain_list__folded(chain);
173 if (folded_sign == '+')
174 break;
175 }
176
177 if (folded_sign == '-') /* Have children and they're unfolded */
178 n += callchain_node__count_rows_rb_tree(child);
179 }
180
181 return n;
182 }
183
184 static int callchain_node__count_flat_rows(struct callchain_node *node)
185 {
186 struct callchain_list *chain;
187 char folded_sign = 0;
188 int n = 0;
189
190 list_for_each_entry(chain, &node->parent_val, list) {
191 if (!folded_sign) {
192 /* only check first chain list entry */
193 folded_sign = callchain_list__folded(chain);
194 if (folded_sign == '+')
195 return 1;
196 }
197 n++;
198 }
199
200 list_for_each_entry(chain, &node->val, list) {
201 if (!folded_sign) {
202 /* node->parent_val list might be empty */
203 folded_sign = callchain_list__folded(chain);
204 if (folded_sign == '+')
205 return 1;
206 }
207 n++;
208 }
209
210 return n;
211 }
212
213 static int callchain_node__count_folded_rows(struct callchain_node *node __maybe_unused)
214 {
215 return 1;
216 }
217
218 static int callchain_node__count_rows(struct callchain_node *node)
219 {
220 struct callchain_list *chain;
221 bool unfolded = false;
222 int n = 0;
223
224 if (callchain_param.mode == CHAIN_FLAT)
225 return callchain_node__count_flat_rows(node);
226 else if (callchain_param.mode == CHAIN_FOLDED)
227 return callchain_node__count_folded_rows(node);
228
229 list_for_each_entry(chain, &node->val, list) {
230 ++n;
231 unfolded = chain->unfolded;
232 }
233
234 if (unfolded)
235 n += callchain_node__count_rows_rb_tree(node);
236
237 return n;
238 }
239
240 static int callchain__count_rows(struct rb_root *chain)
241 {
242 struct rb_node *nd;
243 int n = 0;
244
245 for (nd = rb_first(chain); nd; nd = rb_next(nd)) {
246 struct callchain_node *node = rb_entry(nd, struct callchain_node, rb_node);
247 n += callchain_node__count_rows(node);
248 }
249
250 return n;
251 }
252
253 static int hierarchy_count_rows(struct hist_browser *hb, struct hist_entry *he,
254 bool include_children)
255 {
256 int count = 0;
257 struct rb_node *node;
258 struct hist_entry *child;
259
260 if (he->leaf)
261 return callchain__count_rows(&he->sorted_chain);
262
263 if (he->has_no_entry)
264 return 1;
265
266 node = rb_first(&he->hroot_out);
267 while (node) {
268 float percent;
269
270 child = rb_entry(node, struct hist_entry, rb_node);
271 percent = hist_entry__get_percent_limit(child);
272
273 if (!child->filtered && percent >= hb->min_pcnt) {
274 count++;
275
276 if (include_children && child->unfolded)
277 count += hierarchy_count_rows(hb, child, true);
278 }
279
280 node = rb_next(node);
281 }
282 return count;
283 }
284
285 static bool hist_entry__toggle_fold(struct hist_entry *he)
286 {
287 if (!he)
288 return false;
289
290 if (!he->has_children)
291 return false;
292
293 he->unfolded = !he->unfolded;
294 return true;
295 }
296
297 static bool callchain_list__toggle_fold(struct callchain_list *cl)
298 {
299 if (!cl)
300 return false;
301
302 if (!cl->has_children)
303 return false;
304
305 cl->unfolded = !cl->unfolded;
306 return true;
307 }
308
309 static void callchain_node__init_have_children_rb_tree(struct callchain_node *node)
310 {
311 struct rb_node *nd = rb_first(&node->rb_root);
312
313 for (nd = rb_first(&node->rb_root); nd; nd = rb_next(nd)) {
314 struct callchain_node *child = rb_entry(nd, struct callchain_node, rb_node);
315 struct callchain_list *chain;
316 bool first = true;
317
318 list_for_each_entry(chain, &child->val, list) {
319 if (first) {
320 first = false;
321 chain->has_children = chain->list.next != &child->val ||
322 !RB_EMPTY_ROOT(&child->rb_root);
323 } else
324 chain->has_children = chain->list.next == &child->val &&
325 !RB_EMPTY_ROOT(&child->rb_root);
326 }
327
328 callchain_node__init_have_children_rb_tree(child);
329 }
330 }
331
332 static void callchain_node__init_have_children(struct callchain_node *node,
333 bool has_sibling)
334 {
335 struct callchain_list *chain;
336
337 chain = list_entry(node->val.next, struct callchain_list, list);
338 chain->has_children = has_sibling;
339
340 if (!list_empty(&node->val)) {
341 chain = list_entry(node->val.prev, struct callchain_list, list);
342 chain->has_children = !RB_EMPTY_ROOT(&node->rb_root);
343 }
344
345 callchain_node__init_have_children_rb_tree(node);
346 }
347
348 static void callchain__init_have_children(struct rb_root *root)
349 {
350 struct rb_node *nd = rb_first(root);
351 bool has_sibling = nd && rb_next(nd);
352
353 for (nd = rb_first(root); nd; nd = rb_next(nd)) {
354 struct callchain_node *node = rb_entry(nd, struct callchain_node, rb_node);
355 callchain_node__init_have_children(node, has_sibling);
356 if (callchain_param.mode == CHAIN_FLAT ||
357 callchain_param.mode == CHAIN_FOLDED)
358 callchain_node__make_parent_list(node);
359 }
360 }
361
362 static void hist_entry__init_have_children(struct hist_entry *he)
363 {
364 if (he->init_have_children)
365 return;
366
367 if (he->leaf) {
368 he->has_children = !RB_EMPTY_ROOT(&he->sorted_chain);
369 callchain__init_have_children(&he->sorted_chain);
370 } else {
371 he->has_children = !RB_EMPTY_ROOT(&he->hroot_out);
372 }
373
374 he->init_have_children = true;
375 }
376
377 static bool hist_browser__toggle_fold(struct hist_browser *browser)
378 {
379 struct hist_entry *he = browser->he_selection;
380 struct map_symbol *ms = browser->selection;
381 struct callchain_list *cl = container_of(ms, struct callchain_list, ms);
382 bool has_children;
383
384 if (!he || !ms)
385 return false;
386
387 if (ms == &he->ms)
388 has_children = hist_entry__toggle_fold(he);
389 else
390 has_children = callchain_list__toggle_fold(cl);
391
392 if (has_children) {
393 int child_rows = 0;
394
395 hist_entry__init_have_children(he);
396 browser->b.nr_entries -= he->nr_rows;
397
398 if (he->leaf)
399 browser->nr_callchain_rows -= he->nr_rows;
400 else
401 browser->nr_hierarchy_entries -= he->nr_rows;
402
403 if (symbol_conf.report_hierarchy)
404 child_rows = hierarchy_count_rows(browser, he, true);
405
406 if (he->unfolded) {
407 if (he->leaf)
408 he->nr_rows = callchain__count_rows(&he->sorted_chain);
409 else
410 he->nr_rows = hierarchy_count_rows(browser, he, false);
411
412 /* account grand children */
413 if (symbol_conf.report_hierarchy)
414 browser->b.nr_entries += child_rows - he->nr_rows;
415
416 if (!he->leaf && he->nr_rows == 0) {
417 he->has_no_entry = true;
418 he->nr_rows = 1;
419 }
420 } else {
421 if (symbol_conf.report_hierarchy)
422 browser->b.nr_entries -= child_rows - he->nr_rows;
423
424 if (he->has_no_entry)
425 he->has_no_entry = false;
426
427 he->nr_rows = 0;
428 }
429
430 browser->b.nr_entries += he->nr_rows;
431
432 if (he->leaf)
433 browser->nr_callchain_rows += he->nr_rows;
434 else
435 browser->nr_hierarchy_entries += he->nr_rows;
436
437 return true;
438 }
439
440 /* If it doesn't have children, no toggling performed */
441 return false;
442 }
443
444 static int callchain_node__set_folding_rb_tree(struct callchain_node *node, bool unfold)
445 {
446 int n = 0;
447 struct rb_node *nd;
448
449 for (nd = rb_first(&node->rb_root); nd; nd = rb_next(nd)) {
450 struct callchain_node *child = rb_entry(nd, struct callchain_node, rb_node);
451 struct callchain_list *chain;
452 bool has_children = false;
453
454 list_for_each_entry(chain, &child->val, list) {
455 ++n;
456 callchain_list__set_folding(chain, unfold);
457 has_children = chain->has_children;
458 }
459
460 if (has_children)
461 n += callchain_node__set_folding_rb_tree(child, unfold);
462 }
463
464 return n;
465 }
466
467 static int callchain_node__set_folding(struct callchain_node *node, bool unfold)
468 {
469 struct callchain_list *chain;
470 bool has_children = false;
471 int n = 0;
472
473 list_for_each_entry(chain, &node->val, list) {
474 ++n;
475 callchain_list__set_folding(chain, unfold);
476 has_children = chain->has_children;
477 }
478
479 if (has_children)
480 n += callchain_node__set_folding_rb_tree(node, unfold);
481
482 return n;
483 }
484
485 static int callchain__set_folding(struct rb_root *chain, bool unfold)
486 {
487 struct rb_node *nd;
488 int n = 0;
489
490 for (nd = rb_first(chain); nd; nd = rb_next(nd)) {
491 struct callchain_node *node = rb_entry(nd, struct callchain_node, rb_node);
492 n += callchain_node__set_folding(node, unfold);
493 }
494
495 return n;
496 }
497
498 static int hierarchy_set_folding(struct hist_browser *hb, struct hist_entry *he,
499 bool unfold __maybe_unused)
500 {
501 float percent;
502 struct rb_node *nd;
503 struct hist_entry *child;
504 int n = 0;
505
506 for (nd = rb_first(&he->hroot_out); nd; nd = rb_next(nd)) {
507 child = rb_entry(nd, struct hist_entry, rb_node);
508 percent = hist_entry__get_percent_limit(child);
509 if (!child->filtered && percent >= hb->min_pcnt)
510 n++;
511 }
512
513 return n;
514 }
515
516 static void hist_entry__set_folding(struct hist_entry *he,
517 struct hist_browser *hb, bool unfold)
518 {
519 hist_entry__init_have_children(he);
520 he->unfolded = unfold ? he->has_children : false;
521
522 if (he->has_children) {
523 int n;
524
525 if (he->leaf)
526 n = callchain__set_folding(&he->sorted_chain, unfold);
527 else
528 n = hierarchy_set_folding(hb, he, unfold);
529
530 he->nr_rows = unfold ? n : 0;
531 } else
532 he->nr_rows = 0;
533 }
534
535 static void
536 __hist_browser__set_folding(struct hist_browser *browser, bool unfold)
537 {
538 struct rb_node *nd;
539 struct hist_entry *he;
540 double percent;
541
542 nd = rb_first(&browser->hists->entries);
543 while (nd) {
544 he = rb_entry(nd, struct hist_entry, rb_node);
545
546 /* set folding state even if it's currently folded */
547 nd = __rb_hierarchy_next(nd, HMD_FORCE_CHILD);
548
549 hist_entry__set_folding(he, browser, unfold);
550
551 percent = hist_entry__get_percent_limit(he);
552 if (he->filtered || percent < browser->min_pcnt)
553 continue;
554
555 if (!he->depth || unfold)
556 browser->nr_hierarchy_entries++;
557 if (he->leaf)
558 browser->nr_callchain_rows += he->nr_rows;
559 else if (unfold && !hist_entry__has_hierarchy_children(he, browser->min_pcnt)) {
560 browser->nr_hierarchy_entries++;
561 he->has_no_entry = true;
562 he->nr_rows = 1;
563 } else
564 he->has_no_entry = false;
565 }
566 }
567
568 static void hist_browser__set_folding(struct hist_browser *browser, bool unfold)
569 {
570 browser->nr_hierarchy_entries = 0;
571 browser->nr_callchain_rows = 0;
572 __hist_browser__set_folding(browser, unfold);
573
574 browser->b.nr_entries = hist_browser__nr_entries(browser);
575 /* Go to the start, we may be way after valid entries after a collapse */
576 ui_browser__reset_index(&browser->b);
577 }
578
579 static void ui_browser__warn_lost_events(struct ui_browser *browser)
580 {
581 ui_browser__warning(browser, 4,
582 "Events are being lost, check IO/CPU overload!\n\n"
583 "You may want to run 'perf' using a RT scheduler policy:\n\n"
584 " perf top -r 80\n\n"
585 "Or reduce the sampling frequency.");
586 }
587
588 static int hist_browser__run(struct hist_browser *browser, const char *help)
589 {
590 int key;
591 char title[160];
592 struct hist_browser_timer *hbt = browser->hbt;
593 int delay_secs = hbt ? hbt->refresh : 0;
594
595 browser->b.entries = &browser->hists->entries;
596 browser->b.nr_entries = hist_browser__nr_entries(browser);
597
598 hists__browser_title(browser->hists, hbt, title, sizeof(title));
599
600 if (ui_browser__show(&browser->b, title, "%s", help) < 0)
601 return -1;
602
603 while (1) {
604 key = ui_browser__run(&browser->b, delay_secs);
605
606 switch (key) {
607 case K_TIMER: {
608 u64 nr_entries;
609 hbt->timer(hbt->arg);
610
611 if (hist_browser__has_filter(browser))
612 hist_browser__update_nr_entries(browser);
613
614 nr_entries = hist_browser__nr_entries(browser);
615 ui_browser__update_nr_entries(&browser->b, nr_entries);
616
617 if (browser->hists->stats.nr_lost_warned !=
618 browser->hists->stats.nr_events[PERF_RECORD_LOST]) {
619 browser->hists->stats.nr_lost_warned =
620 browser->hists->stats.nr_events[PERF_RECORD_LOST];
621 ui_browser__warn_lost_events(&browser->b);
622 }
623
624 hists__browser_title(browser->hists,
625 hbt, title, sizeof(title));
626 ui_browser__show_title(&browser->b, title);
627 continue;
628 }
629 case 'D': { /* Debug */
630 static int seq;
631 struct hist_entry *h = rb_entry(browser->b.top,
632 struct hist_entry, rb_node);
633 ui_helpline__pop();
634 ui_helpline__fpush("%d: nr_ent=(%d,%d), rows=%d, idx=%d, fve: idx=%d, row_off=%d, nrows=%d",
635 seq++, browser->b.nr_entries,
636 browser->hists->nr_entries,
637 browser->b.rows,
638 browser->b.index,
639 browser->b.top_idx,
640 h->row_offset, h->nr_rows);
641 }
642 break;
643 case 'C':
644 /* Collapse the whole world. */
645 hist_browser__set_folding(browser, false);
646 break;
647 case 'E':
648 /* Expand the whole world. */
649 hist_browser__set_folding(browser, true);
650 break;
651 case 'H':
652 browser->show_headers = !browser->show_headers;
653 hist_browser__update_rows(browser);
654 break;
655 case K_ENTER:
656 if (hist_browser__toggle_fold(browser))
657 break;
658 /* fall thru */
659 default:
660 goto out;
661 }
662 }
663 out:
664 ui_browser__hide(&browser->b);
665 return key;
666 }
667
668 struct callchain_print_arg {
669 /* for hists browser */
670 off_t row_offset;
671 bool is_current_entry;
672
673 /* for file dump */
674 FILE *fp;
675 int printed;
676 };
677
678 typedef void (*print_callchain_entry_fn)(struct hist_browser *browser,
679 struct callchain_list *chain,
680 const char *str, int offset,
681 unsigned short row,
682 struct callchain_print_arg *arg);
683
684 static void hist_browser__show_callchain_entry(struct hist_browser *browser,
685 struct callchain_list *chain,
686 const char *str, int offset,
687 unsigned short row,
688 struct callchain_print_arg *arg)
689 {
690 int color, width;
691 char folded_sign = callchain_list__folded(chain);
692 bool show_annotated = browser->show_dso && chain->ms.sym && symbol__annotation(chain->ms.sym)->src;
693
694 color = HE_COLORSET_NORMAL;
695 width = browser->b.width - (offset + 2);
696 if (ui_browser__is_current_entry(&browser->b, row)) {
697 browser->selection = &chain->ms;
698 color = HE_COLORSET_SELECTED;
699 arg->is_current_entry = true;
700 }
701
702 ui_browser__set_color(&browser->b, color);
703 hist_browser__gotorc(browser, row, 0);
704 ui_browser__write_nstring(&browser->b, " ", offset);
705 ui_browser__printf(&browser->b, "%c", folded_sign);
706 ui_browser__write_graph(&browser->b, show_annotated ? SLSMG_RARROW_CHAR : ' ');
707 ui_browser__write_nstring(&browser->b, str, width);
708 }
709
710 static void hist_browser__fprintf_callchain_entry(struct hist_browser *b __maybe_unused,
711 struct callchain_list *chain,
712 const char *str, int offset,
713 unsigned short row __maybe_unused,
714 struct callchain_print_arg *arg)
715 {
716 char folded_sign = callchain_list__folded(chain);
717
718 arg->printed += fprintf(arg->fp, "%*s%c %s\n", offset, " ",
719 folded_sign, str);
720 }
721
722 typedef bool (*check_output_full_fn)(struct hist_browser *browser,
723 unsigned short row);
724
725 static bool hist_browser__check_output_full(struct hist_browser *browser,
726 unsigned short row)
727 {
728 return browser->b.rows == row;
729 }
730
731 static bool hist_browser__check_dump_full(struct hist_browser *browser __maybe_unused,
732 unsigned short row __maybe_unused)
733 {
734 return false;
735 }
736
737 #define LEVEL_OFFSET_STEP 3
738
739 static int hist_browser__show_callchain_list(struct hist_browser *browser,
740 struct callchain_node *node,
741 struct callchain_list *chain,
742 unsigned short row, u64 total,
743 bool need_percent, int offset,
744 print_callchain_entry_fn print,
745 struct callchain_print_arg *arg)
746 {
747 char bf[1024], *alloc_str;
748 const char *str;
749
750 if (arg->row_offset != 0) {
751 arg->row_offset--;
752 return 0;
753 }
754
755 alloc_str = NULL;
756 str = callchain_list__sym_name(chain, bf, sizeof(bf),
757 browser->show_dso);
758
759 if (need_percent) {
760 char buf[64];
761
762 callchain_node__scnprintf_value(node, buf, sizeof(buf),
763 total);
764
765 if (asprintf(&alloc_str, "%s %s", buf, str) < 0)
766 str = "Not enough memory!";
767 else
768 str = alloc_str;
769 }
770
771 print(browser, chain, str, offset, row, arg);
772
773 free(alloc_str);
774 return 1;
775 }
776
777 static bool check_percent_display(struct rb_node *node, u64 parent_total)
778 {
779 struct callchain_node *child;
780
781 if (node == NULL)
782 return false;
783
784 if (rb_next(node))
785 return true;
786
787 child = rb_entry(node, struct callchain_node, rb_node);
788 return callchain_cumul_hits(child) != parent_total;
789 }
790
791 static int hist_browser__show_callchain_flat(struct hist_browser *browser,
792 struct rb_root *root,
793 unsigned short row, u64 total,
794 u64 parent_total,
795 print_callchain_entry_fn print,
796 struct callchain_print_arg *arg,
797 check_output_full_fn is_output_full)
798 {
799 struct rb_node *node;
800 int first_row = row, offset = LEVEL_OFFSET_STEP;
801 bool need_percent;
802
803 node = rb_first(root);
804 need_percent = check_percent_display(node, parent_total);
805
806 while (node) {
807 struct callchain_node *child = rb_entry(node, struct callchain_node, rb_node);
808 struct rb_node *next = rb_next(node);
809 struct callchain_list *chain;
810 char folded_sign = ' ';
811 int first = true;
812 int extra_offset = 0;
813
814 list_for_each_entry(chain, &child->parent_val, list) {
815 bool was_first = first;
816
817 if (first)
818 first = false;
819 else if (need_percent)
820 extra_offset = LEVEL_OFFSET_STEP;
821
822 folded_sign = callchain_list__folded(chain);
823
824 row += hist_browser__show_callchain_list(browser, child,
825 chain, row, total,
826 was_first && need_percent,
827 offset + extra_offset,
828 print, arg);
829
830 if (is_output_full(browser, row))
831 goto out;
832
833 if (folded_sign == '+')
834 goto next;
835 }
836
837 list_for_each_entry(chain, &child->val, list) {
838 bool was_first = first;
839
840 if (first)
841 first = false;
842 else if (need_percent)
843 extra_offset = LEVEL_OFFSET_STEP;
844
845 folded_sign = callchain_list__folded(chain);
846
847 row += hist_browser__show_callchain_list(browser, child,
848 chain, row, total,
849 was_first && need_percent,
850 offset + extra_offset,
851 print, arg);
852
853 if (is_output_full(browser, row))
854 goto out;
855
856 if (folded_sign == '+')
857 break;
858 }
859
860 next:
861 if (is_output_full(browser, row))
862 break;
863 node = next;
864 }
865 out:
866 return row - first_row;
867 }
868
869 static char *hist_browser__folded_callchain_str(struct hist_browser *browser,
870 struct callchain_list *chain,
871 char *value_str, char *old_str)
872 {
873 char bf[1024];
874 const char *str;
875 char *new;
876
877 str = callchain_list__sym_name(chain, bf, sizeof(bf),
878 browser->show_dso);
879 if (old_str) {
880 if (asprintf(&new, "%s%s%s", old_str,
881 symbol_conf.field_sep ?: ";", str) < 0)
882 new = NULL;
883 } else {
884 if (value_str) {
885 if (asprintf(&new, "%s %s", value_str, str) < 0)
886 new = NULL;
887 } else {
888 if (asprintf(&new, "%s", str) < 0)
889 new = NULL;
890 }
891 }
892 return new;
893 }
894
895 static int hist_browser__show_callchain_folded(struct hist_browser *browser,
896 struct rb_root *root,
897 unsigned short row, u64 total,
898 u64 parent_total,
899 print_callchain_entry_fn print,
900 struct callchain_print_arg *arg,
901 check_output_full_fn is_output_full)
902 {
903 struct rb_node *node;
904 int first_row = row, offset = LEVEL_OFFSET_STEP;
905 bool need_percent;
906
907 node = rb_first(root);
908 need_percent = check_percent_display(node, parent_total);
909
910 while (node) {
911 struct callchain_node *child = rb_entry(node, struct callchain_node, rb_node);
912 struct rb_node *next = rb_next(node);
913 struct callchain_list *chain, *first_chain = NULL;
914 int first = true;
915 char *value_str = NULL, *value_str_alloc = NULL;
916 char *chain_str = NULL, *chain_str_alloc = NULL;
917
918 if (arg->row_offset != 0) {
919 arg->row_offset--;
920 goto next;
921 }
922
923 if (need_percent) {
924 char buf[64];
925
926 callchain_node__scnprintf_value(child, buf, sizeof(buf), total);
927 if (asprintf(&value_str, "%s", buf) < 0) {
928 value_str = (char *)"<...>";
929 goto do_print;
930 }
931 value_str_alloc = value_str;
932 }
933
934 list_for_each_entry(chain, &child->parent_val, list) {
935 chain_str = hist_browser__folded_callchain_str(browser,
936 chain, value_str, chain_str);
937 if (first) {
938 first = false;
939 first_chain = chain;
940 }
941
942 if (chain_str == NULL) {
943 chain_str = (char *)"Not enough memory!";
944 goto do_print;
945 }
946
947 chain_str_alloc = chain_str;
948 }
949
950 list_for_each_entry(chain, &child->val, list) {
951 chain_str = hist_browser__folded_callchain_str(browser,
952 chain, value_str, chain_str);
953 if (first) {
954 first = false;
955 first_chain = chain;
956 }
957
958 if (chain_str == NULL) {
959 chain_str = (char *)"Not enough memory!";
960 goto do_print;
961 }
962
963 chain_str_alloc = chain_str;
964 }
965
966 do_print:
967 print(browser, first_chain, chain_str, offset, row++, arg);
968 free(value_str_alloc);
969 free(chain_str_alloc);
970
971 next:
972 if (is_output_full(browser, row))
973 break;
974 node = next;
975 }
976
977 return row - first_row;
978 }
979
980 static int hist_browser__show_callchain_graph(struct hist_browser *browser,
981 struct rb_root *root, int level,
982 unsigned short row, u64 total,
983 u64 parent_total,
984 print_callchain_entry_fn print,
985 struct callchain_print_arg *arg,
986 check_output_full_fn is_output_full)
987 {
988 struct rb_node *node;
989 int first_row = row, offset = level * LEVEL_OFFSET_STEP;
990 bool need_percent;
991 u64 percent_total = total;
992
993 if (callchain_param.mode == CHAIN_GRAPH_REL)
994 percent_total = parent_total;
995
996 node = rb_first(root);
997 need_percent = check_percent_display(node, parent_total);
998
999 while (node) {
1000 struct callchain_node *child = rb_entry(node, struct callchain_node, rb_node);
1001 struct rb_node *next = rb_next(node);
1002 struct callchain_list *chain;
1003 char folded_sign = ' ';
1004 int first = true;
1005 int extra_offset = 0;
1006
1007 list_for_each_entry(chain, &child->val, list) {
1008 bool was_first = first;
1009
1010 if (first)
1011 first = false;
1012 else if (need_percent)
1013 extra_offset = LEVEL_OFFSET_STEP;
1014
1015 folded_sign = callchain_list__folded(chain);
1016
1017 row += hist_browser__show_callchain_list(browser, child,
1018 chain, row, percent_total,
1019 was_first && need_percent,
1020 offset + extra_offset,
1021 print, arg);
1022
1023 if (is_output_full(browser, row))
1024 goto out;
1025
1026 if (folded_sign == '+')
1027 break;
1028 }
1029
1030 if (folded_sign == '-') {
1031 const int new_level = level + (extra_offset ? 2 : 1);
1032
1033 row += hist_browser__show_callchain_graph(browser, &child->rb_root,
1034 new_level, row, total,
1035 child->children_hit,
1036 print, arg, is_output_full);
1037 }
1038 if (is_output_full(browser, row))
1039 break;
1040 node = next;
1041 }
1042 out:
1043 return row - first_row;
1044 }
1045
1046 static int hist_browser__show_callchain(struct hist_browser *browser,
1047 struct hist_entry *entry, int level,
1048 unsigned short row,
1049 print_callchain_entry_fn print,
1050 struct callchain_print_arg *arg,
1051 check_output_full_fn is_output_full)
1052 {
1053 u64 total = hists__total_period(entry->hists);
1054 u64 parent_total;
1055 int printed;
1056
1057 if (symbol_conf.cumulate_callchain)
1058 parent_total = entry->stat_acc->period;
1059 else
1060 parent_total = entry->stat.period;
1061
1062 if (callchain_param.mode == CHAIN_FLAT) {
1063 printed = hist_browser__show_callchain_flat(browser,
1064 &entry->sorted_chain, row,
1065 total, parent_total, print, arg,
1066 is_output_full);
1067 } else if (callchain_param.mode == CHAIN_FOLDED) {
1068 printed = hist_browser__show_callchain_folded(browser,
1069 &entry->sorted_chain, row,
1070 total, parent_total, print, arg,
1071 is_output_full);
1072 } else {
1073 printed = hist_browser__show_callchain_graph(browser,
1074 &entry->sorted_chain, level, row,
1075 total, parent_total, print, arg,
1076 is_output_full);
1077 }
1078
1079 if (arg->is_current_entry)
1080 browser->he_selection = entry;
1081
1082 return printed;
1083 }
1084
1085 struct hpp_arg {
1086 struct ui_browser *b;
1087 char folded_sign;
1088 bool current_entry;
1089 };
1090
1091 static int __hpp__slsmg_color_printf(struct perf_hpp *hpp, const char *fmt, ...)
1092 {
1093 struct hpp_arg *arg = hpp->ptr;
1094 int ret, len;
1095 va_list args;
1096 double percent;
1097
1098 va_start(args, fmt);
1099 len = va_arg(args, int);
1100 percent = va_arg(args, double);
1101 va_end(args);
1102
1103 ui_browser__set_percent_color(arg->b, percent, arg->current_entry);
1104
1105 ret = scnprintf(hpp->buf, hpp->size, fmt, len, percent);
1106 ui_browser__printf(arg->b, "%s", hpp->buf);
1107
1108 advance_hpp(hpp, ret);
1109 return ret;
1110 }
1111
1112 #define __HPP_COLOR_PERCENT_FN(_type, _field) \
1113 static u64 __hpp_get_##_field(struct hist_entry *he) \
1114 { \
1115 return he->stat._field; \
1116 } \
1117 \
1118 static int \
1119 hist_browser__hpp_color_##_type(struct perf_hpp_fmt *fmt, \
1120 struct perf_hpp *hpp, \
1121 struct hist_entry *he) \
1122 { \
1123 return hpp__fmt(fmt, hpp, he, __hpp_get_##_field, " %*.2f%%", \
1124 __hpp__slsmg_color_printf, true); \
1125 }
1126
1127 #define __HPP_COLOR_ACC_PERCENT_FN(_type, _field) \
1128 static u64 __hpp_get_acc_##_field(struct hist_entry *he) \
1129 { \
1130 return he->stat_acc->_field; \
1131 } \
1132 \
1133 static int \
1134 hist_browser__hpp_color_##_type(struct perf_hpp_fmt *fmt, \
1135 struct perf_hpp *hpp, \
1136 struct hist_entry *he) \
1137 { \
1138 if (!symbol_conf.cumulate_callchain) { \
1139 struct hpp_arg *arg = hpp->ptr; \
1140 int len = fmt->user_len ?: fmt->len; \
1141 int ret = scnprintf(hpp->buf, hpp->size, \
1142 "%*s", len, "N/A"); \
1143 ui_browser__printf(arg->b, "%s", hpp->buf); \
1144 \
1145 return ret; \
1146 } \
1147 return hpp__fmt(fmt, hpp, he, __hpp_get_acc_##_field, \
1148 " %*.2f%%", __hpp__slsmg_color_printf, true); \
1149 }
1150
1151 __HPP_COLOR_PERCENT_FN(overhead, period)
1152 __HPP_COLOR_PERCENT_FN(overhead_sys, period_sys)
1153 __HPP_COLOR_PERCENT_FN(overhead_us, period_us)
1154 __HPP_COLOR_PERCENT_FN(overhead_guest_sys, period_guest_sys)
1155 __HPP_COLOR_PERCENT_FN(overhead_guest_us, period_guest_us)
1156 __HPP_COLOR_ACC_PERCENT_FN(overhead_acc, period)
1157
1158 #undef __HPP_COLOR_PERCENT_FN
1159 #undef __HPP_COLOR_ACC_PERCENT_FN
1160
1161 void hist_browser__init_hpp(void)
1162 {
1163 perf_hpp__format[PERF_HPP__OVERHEAD].color =
1164 hist_browser__hpp_color_overhead;
1165 perf_hpp__format[PERF_HPP__OVERHEAD_SYS].color =
1166 hist_browser__hpp_color_overhead_sys;
1167 perf_hpp__format[PERF_HPP__OVERHEAD_US].color =
1168 hist_browser__hpp_color_overhead_us;
1169 perf_hpp__format[PERF_HPP__OVERHEAD_GUEST_SYS].color =
1170 hist_browser__hpp_color_overhead_guest_sys;
1171 perf_hpp__format[PERF_HPP__OVERHEAD_GUEST_US].color =
1172 hist_browser__hpp_color_overhead_guest_us;
1173 perf_hpp__format[PERF_HPP__OVERHEAD_ACC].color =
1174 hist_browser__hpp_color_overhead_acc;
1175 }
1176
1177 static int hist_browser__show_entry(struct hist_browser *browser,
1178 struct hist_entry *entry,
1179 unsigned short row)
1180 {
1181 int printed = 0;
1182 int width = browser->b.width;
1183 char folded_sign = ' ';
1184 bool current_entry = ui_browser__is_current_entry(&browser->b, row);
1185 off_t row_offset = entry->row_offset;
1186 bool first = true;
1187 struct perf_hpp_fmt *fmt;
1188
1189 if (current_entry) {
1190 browser->he_selection = entry;
1191 browser->selection = &entry->ms;
1192 }
1193
1194 if (symbol_conf.use_callchain) {
1195 hist_entry__init_have_children(entry);
1196 folded_sign = hist_entry__folded(entry);
1197 }
1198
1199 if (row_offset == 0) {
1200 struct hpp_arg arg = {
1201 .b = &browser->b,
1202 .folded_sign = folded_sign,
1203 .current_entry = current_entry,
1204 };
1205 int column = 0;
1206
1207 hist_browser__gotorc(browser, row, 0);
1208
1209 hists__for_each_format(browser->hists, fmt) {
1210 char s[2048];
1211 struct perf_hpp hpp = {
1212 .buf = s,
1213 .size = sizeof(s),
1214 .ptr = &arg,
1215 };
1216
1217 if (perf_hpp__should_skip(fmt, entry->hists) ||
1218 column++ < browser->b.horiz_scroll)
1219 continue;
1220
1221 if (current_entry && browser->b.navkeypressed) {
1222 ui_browser__set_color(&browser->b,
1223 HE_COLORSET_SELECTED);
1224 } else {
1225 ui_browser__set_color(&browser->b,
1226 HE_COLORSET_NORMAL);
1227 }
1228
1229 if (first) {
1230 if (symbol_conf.use_callchain) {
1231 ui_browser__printf(&browser->b, "%c ", folded_sign);
1232 width -= 2;
1233 }
1234 first = false;
1235 } else {
1236 ui_browser__printf(&browser->b, " ");
1237 width -= 2;
1238 }
1239
1240 if (fmt->color) {
1241 int ret = fmt->color(fmt, &hpp, entry);
1242 hist_entry__snprintf_alignment(entry, &hpp, fmt, ret);
1243 /*
1244 * fmt->color() already used ui_browser to
1245 * print the non alignment bits, skip it (+ret):
1246 */
1247 ui_browser__printf(&browser->b, "%s", s + ret);
1248 } else {
1249 hist_entry__snprintf_alignment(entry, &hpp, fmt, fmt->entry(fmt, &hpp, entry));
1250 ui_browser__printf(&browser->b, "%s", s);
1251 }
1252 width -= hpp.buf - s;
1253 }
1254
1255 /* The scroll bar isn't being used */
1256 if (!browser->b.navkeypressed)
1257 width += 1;
1258
1259 ui_browser__write_nstring(&browser->b, "", width);
1260
1261 ++row;
1262 ++printed;
1263 } else
1264 --row_offset;
1265
1266 if (folded_sign == '-' && row != browser->b.rows) {
1267 struct callchain_print_arg arg = {
1268 .row_offset = row_offset,
1269 .is_current_entry = current_entry,
1270 };
1271
1272 printed += hist_browser__show_callchain(browser, entry, 1, row,
1273 hist_browser__show_callchain_entry, &arg,
1274 hist_browser__check_output_full);
1275 }
1276
1277 return printed;
1278 }
1279
1280 static int hist_browser__show_hierarchy_entry(struct hist_browser *browser,
1281 struct hist_entry *entry,
1282 unsigned short row,
1283 int level)
1284 {
1285 int printed = 0;
1286 int width = browser->b.width;
1287 char folded_sign = ' ';
1288 bool current_entry = ui_browser__is_current_entry(&browser->b, row);
1289 off_t row_offset = entry->row_offset;
1290 bool first = true;
1291 struct perf_hpp_fmt *fmt;
1292 struct perf_hpp_list_node *fmt_node;
1293 struct hpp_arg arg = {
1294 .b = &browser->b,
1295 .current_entry = current_entry,
1296 };
1297 int column = 0;
1298 int hierarchy_indent = (entry->hists->nr_hpp_node - 2) * HIERARCHY_INDENT;
1299
1300 if (current_entry) {
1301 browser->he_selection = entry;
1302 browser->selection = &entry->ms;
1303 }
1304
1305 hist_entry__init_have_children(entry);
1306 folded_sign = hist_entry__folded(entry);
1307 arg.folded_sign = folded_sign;
1308
1309 if (entry->leaf && row_offset) {
1310 row_offset--;
1311 goto show_callchain;
1312 }
1313
1314 hist_browser__gotorc(browser, row, 0);
1315
1316 if (current_entry && browser->b.navkeypressed)
1317 ui_browser__set_color(&browser->b, HE_COLORSET_SELECTED);
1318 else
1319 ui_browser__set_color(&browser->b, HE_COLORSET_NORMAL);
1320
1321 ui_browser__write_nstring(&browser->b, "", level * HIERARCHY_INDENT);
1322 width -= level * HIERARCHY_INDENT;
1323
1324 /* the first hpp_list_node is for overhead columns */
1325 fmt_node = list_first_entry(&entry->hists->hpp_formats,
1326 struct perf_hpp_list_node, list);
1327 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
1328 char s[2048];
1329 struct perf_hpp hpp = {
1330 .buf = s,
1331 .size = sizeof(s),
1332 .ptr = &arg,
1333 };
1334
1335 if (perf_hpp__should_skip(fmt, entry->hists) ||
1336 column++ < browser->b.horiz_scroll)
1337 continue;
1338
1339 if (current_entry && browser->b.navkeypressed) {
1340 ui_browser__set_color(&browser->b,
1341 HE_COLORSET_SELECTED);
1342 } else {
1343 ui_browser__set_color(&browser->b,
1344 HE_COLORSET_NORMAL);
1345 }
1346
1347 if (first) {
1348 ui_browser__printf(&browser->b, "%c", folded_sign);
1349 width--;
1350 first = false;
1351 } else {
1352 ui_browser__printf(&browser->b, " ");
1353 width -= 2;
1354 }
1355
1356 if (fmt->color) {
1357 int ret = fmt->color(fmt, &hpp, entry);
1358 hist_entry__snprintf_alignment(entry, &hpp, fmt, ret);
1359 /*
1360 * fmt->color() already used ui_browser to
1361 * print the non alignment bits, skip it (+ret):
1362 */
1363 ui_browser__printf(&browser->b, "%s", s + ret);
1364 } else {
1365 int ret = fmt->entry(fmt, &hpp, entry);
1366 hist_entry__snprintf_alignment(entry, &hpp, fmt, ret);
1367 ui_browser__printf(&browser->b, "%s", s);
1368 }
1369 width -= hpp.buf - s;
1370 }
1371
1372 ui_browser__write_nstring(&browser->b, "", hierarchy_indent);
1373 width -= hierarchy_indent;
1374
1375 if (column >= browser->b.horiz_scroll) {
1376 char s[2048];
1377 struct perf_hpp hpp = {
1378 .buf = s,
1379 .size = sizeof(s),
1380 .ptr = &arg,
1381 };
1382
1383 if (current_entry && browser->b.navkeypressed) {
1384 ui_browser__set_color(&browser->b,
1385 HE_COLORSET_SELECTED);
1386 } else {
1387 ui_browser__set_color(&browser->b,
1388 HE_COLORSET_NORMAL);
1389 }
1390
1391 perf_hpp_list__for_each_format(entry->hpp_list, fmt) {
1392 ui_browser__write_nstring(&browser->b, "", 2);
1393 width -= 2;
1394
1395 /*
1396 * No need to call hist_entry__snprintf_alignment()
1397 * since this fmt is always the last column in the
1398 * hierarchy mode.
1399 */
1400 if (fmt->color) {
1401 width -= fmt->color(fmt, &hpp, entry);
1402 } else {
1403 int i = 0;
1404
1405 width -= fmt->entry(fmt, &hpp, entry);
1406 ui_browser__printf(&browser->b, "%s", ltrim(s));
1407
1408 while (isspace(s[i++]))
1409 width++;
1410 }
1411 }
1412 }
1413
1414 /* The scroll bar isn't being used */
1415 if (!browser->b.navkeypressed)
1416 width += 1;
1417
1418 ui_browser__write_nstring(&browser->b, "", width);
1419
1420 ++row;
1421 ++printed;
1422
1423 show_callchain:
1424 if (entry->leaf && folded_sign == '-' && row != browser->b.rows) {
1425 struct callchain_print_arg carg = {
1426 .row_offset = row_offset,
1427 };
1428
1429 printed += hist_browser__show_callchain(browser, entry,
1430 level + 1, row,
1431 hist_browser__show_callchain_entry, &carg,
1432 hist_browser__check_output_full);
1433 }
1434
1435 return printed;
1436 }
1437
1438 static int hist_browser__show_no_entry(struct hist_browser *browser,
1439 unsigned short row, int level)
1440 {
1441 int width = browser->b.width;
1442 bool current_entry = ui_browser__is_current_entry(&browser->b, row);
1443 bool first = true;
1444 int column = 0;
1445 int ret;
1446 struct perf_hpp_fmt *fmt;
1447 struct perf_hpp_list_node *fmt_node;
1448 int indent = browser->hists->nr_hpp_node - 2;
1449
1450 if (current_entry) {
1451 browser->he_selection = NULL;
1452 browser->selection = NULL;
1453 }
1454
1455 hist_browser__gotorc(browser, row, 0);
1456
1457 if (current_entry && browser->b.navkeypressed)
1458 ui_browser__set_color(&browser->b, HE_COLORSET_SELECTED);
1459 else
1460 ui_browser__set_color(&browser->b, HE_COLORSET_NORMAL);
1461
1462 ui_browser__write_nstring(&browser->b, "", level * HIERARCHY_INDENT);
1463 width -= level * HIERARCHY_INDENT;
1464
1465 /* the first hpp_list_node is for overhead columns */
1466 fmt_node = list_first_entry(&browser->hists->hpp_formats,
1467 struct perf_hpp_list_node, list);
1468 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
1469 if (perf_hpp__should_skip(fmt, browser->hists) ||
1470 column++ < browser->b.horiz_scroll)
1471 continue;
1472
1473 ret = fmt->width(fmt, NULL, hists_to_evsel(browser->hists));
1474
1475 if (first) {
1476 /* for folded sign */
1477 first = false;
1478 ret++;
1479 } else {
1480 /* space between columns */
1481 ret += 2;
1482 }
1483
1484 ui_browser__write_nstring(&browser->b, "", ret);
1485 width -= ret;
1486 }
1487
1488 ui_browser__write_nstring(&browser->b, "", indent * HIERARCHY_INDENT);
1489 width -= indent * HIERARCHY_INDENT;
1490
1491 if (column >= browser->b.horiz_scroll) {
1492 char buf[32];
1493
1494 ret = snprintf(buf, sizeof(buf), "no entry >= %.2f%%", browser->min_pcnt);
1495 ui_browser__printf(&browser->b, " %s", buf);
1496 width -= ret + 2;
1497 }
1498
1499 /* The scroll bar isn't being used */
1500 if (!browser->b.navkeypressed)
1501 width += 1;
1502
1503 ui_browser__write_nstring(&browser->b, "", width);
1504 return 1;
1505 }
1506
1507 static int advance_hpp_check(struct perf_hpp *hpp, int inc)
1508 {
1509 advance_hpp(hpp, inc);
1510 return hpp->size <= 0;
1511 }
1512
1513 static int hists_browser__scnprintf_headers(struct hist_browser *browser, char *buf, size_t size)
1514 {
1515 struct hists *hists = browser->hists;
1516 struct perf_hpp dummy_hpp = {
1517 .buf = buf,
1518 .size = size,
1519 };
1520 struct perf_hpp_fmt *fmt;
1521 size_t ret = 0;
1522 int column = 0;
1523
1524 if (symbol_conf.use_callchain) {
1525 ret = scnprintf(buf, size, " ");
1526 if (advance_hpp_check(&dummy_hpp, ret))
1527 return ret;
1528 }
1529
1530 hists__for_each_format(browser->hists, fmt) {
1531 if (perf_hpp__should_skip(fmt, hists) || column++ < browser->b.horiz_scroll)
1532 continue;
1533
1534 ret = fmt->header(fmt, &dummy_hpp, hists_to_evsel(hists));
1535 if (advance_hpp_check(&dummy_hpp, ret))
1536 break;
1537
1538 ret = scnprintf(dummy_hpp.buf, dummy_hpp.size, " ");
1539 if (advance_hpp_check(&dummy_hpp, ret))
1540 break;
1541 }
1542
1543 return ret;
1544 }
1545
1546 static int hists_browser__scnprintf_hierarchy_headers(struct hist_browser *browser, char *buf, size_t size)
1547 {
1548 struct hists *hists = browser->hists;
1549 struct perf_hpp dummy_hpp = {
1550 .buf = buf,
1551 .size = size,
1552 };
1553 struct perf_hpp_fmt *fmt;
1554 struct perf_hpp_list_node *fmt_node;
1555 size_t ret = 0;
1556 int column = 0;
1557 int indent = hists->nr_hpp_node - 2;
1558 bool first_node, first_col;
1559
1560 ret = scnprintf(buf, size, " ");
1561 if (advance_hpp_check(&dummy_hpp, ret))
1562 return ret;
1563
1564 /* the first hpp_list_node is for overhead columns */
1565 fmt_node = list_first_entry(&hists->hpp_formats,
1566 struct perf_hpp_list_node, list);
1567 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
1568 if (column++ < browser->b.horiz_scroll)
1569 continue;
1570
1571 ret = fmt->header(fmt, &dummy_hpp, hists_to_evsel(hists));
1572 if (advance_hpp_check(&dummy_hpp, ret))
1573 break;
1574
1575 ret = scnprintf(dummy_hpp.buf, dummy_hpp.size, " ");
1576 if (advance_hpp_check(&dummy_hpp, ret))
1577 break;
1578 }
1579
1580 ret = scnprintf(dummy_hpp.buf, dummy_hpp.size, "%*s",
1581 indent * HIERARCHY_INDENT, "");
1582 if (advance_hpp_check(&dummy_hpp, ret))
1583 return ret;
1584
1585 first_node = true;
1586 list_for_each_entry_continue(fmt_node, &hists->hpp_formats, list) {
1587 if (!first_node) {
1588 ret = scnprintf(dummy_hpp.buf, dummy_hpp.size, " / ");
1589 if (advance_hpp_check(&dummy_hpp, ret))
1590 break;
1591 }
1592 first_node = false;
1593
1594 first_col = true;
1595 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
1596 char *start;
1597
1598 if (perf_hpp__should_skip(fmt, hists))
1599 continue;
1600
1601 if (!first_col) {
1602 ret = scnprintf(dummy_hpp.buf, dummy_hpp.size, "+");
1603 if (advance_hpp_check(&dummy_hpp, ret))
1604 break;
1605 }
1606 first_col = false;
1607
1608 ret = fmt->header(fmt, &dummy_hpp, hists_to_evsel(hists));
1609 dummy_hpp.buf[ret] = '\0';
1610 rtrim(dummy_hpp.buf);
1611
1612 start = ltrim(dummy_hpp.buf);
1613 ret = strlen(start);
1614
1615 if (start != dummy_hpp.buf)
1616 memmove(dummy_hpp.buf, start, ret + 1);
1617
1618 if (advance_hpp_check(&dummy_hpp, ret))
1619 break;
1620 }
1621 }
1622
1623 return ret;
1624 }
1625
1626 static void hist_browser__show_headers(struct hist_browser *browser)
1627 {
1628 char headers[1024];
1629
1630 if (symbol_conf.report_hierarchy)
1631 hists_browser__scnprintf_hierarchy_headers(browser, headers,
1632 sizeof(headers));
1633 else
1634 hists_browser__scnprintf_headers(browser, headers,
1635 sizeof(headers));
1636 ui_browser__gotorc(&browser->b, 0, 0);
1637 ui_browser__set_color(&browser->b, HE_COLORSET_ROOT);
1638 ui_browser__write_nstring(&browser->b, headers, browser->b.width + 1);
1639 }
1640
1641 static void ui_browser__hists_init_top(struct ui_browser *browser)
1642 {
1643 if (browser->top == NULL) {
1644 struct hist_browser *hb;
1645
1646 hb = container_of(browser, struct hist_browser, b);
1647 browser->top = rb_first(&hb->hists->entries);
1648 }
1649 }
1650
1651 static unsigned int hist_browser__refresh(struct ui_browser *browser)
1652 {
1653 unsigned row = 0;
1654 u16 header_offset = 0;
1655 struct rb_node *nd;
1656 struct hist_browser *hb = container_of(browser, struct hist_browser, b);
1657
1658 if (hb->show_headers) {
1659 hist_browser__show_headers(hb);
1660 header_offset = 1;
1661 }
1662
1663 ui_browser__hists_init_top(browser);
1664 hb->he_selection = NULL;
1665 hb->selection = NULL;
1666
1667 for (nd = browser->top; nd; nd = rb_hierarchy_next(nd)) {
1668 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
1669 float percent;
1670
1671 if (h->filtered) {
1672 /* let it move to sibling */
1673 h->unfolded = false;
1674 continue;
1675 }
1676
1677 percent = hist_entry__get_percent_limit(h);
1678 if (percent < hb->min_pcnt)
1679 continue;
1680
1681 if (symbol_conf.report_hierarchy) {
1682 row += hist_browser__show_hierarchy_entry(hb, h, row,
1683 h->depth);
1684 if (row == browser->rows)
1685 break;
1686
1687 if (h->has_no_entry) {
1688 hist_browser__show_no_entry(hb, row, h->depth + 1);
1689 row++;
1690 }
1691 } else {
1692 row += hist_browser__show_entry(hb, h, row);
1693 }
1694
1695 if (row == browser->rows)
1696 break;
1697 }
1698
1699 return row + header_offset;
1700 }
1701
1702 static struct rb_node *hists__filter_entries(struct rb_node *nd,
1703 float min_pcnt)
1704 {
1705 while (nd != NULL) {
1706 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
1707 float percent = hist_entry__get_percent_limit(h);
1708
1709 if (!h->filtered && percent >= min_pcnt)
1710 return nd;
1711
1712 /*
1713 * If it's filtered, its all children also were filtered.
1714 * So move to sibling node.
1715 */
1716 if (rb_next(nd))
1717 nd = rb_next(nd);
1718 else
1719 nd = rb_hierarchy_next(nd);
1720 }
1721
1722 return NULL;
1723 }
1724
1725 static struct rb_node *hists__filter_prev_entries(struct rb_node *nd,
1726 float min_pcnt)
1727 {
1728 while (nd != NULL) {
1729 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
1730 float percent = hist_entry__get_percent_limit(h);
1731
1732 if (!h->filtered && percent >= min_pcnt)
1733 return nd;
1734
1735 nd = rb_hierarchy_prev(nd);
1736 }
1737
1738 return NULL;
1739 }
1740
1741 static void ui_browser__hists_seek(struct ui_browser *browser,
1742 off_t offset, int whence)
1743 {
1744 struct hist_entry *h;
1745 struct rb_node *nd;
1746 bool first = true;
1747 struct hist_browser *hb;
1748
1749 hb = container_of(browser, struct hist_browser, b);
1750
1751 if (browser->nr_entries == 0)
1752 return;
1753
1754 ui_browser__hists_init_top(browser);
1755
1756 switch (whence) {
1757 case SEEK_SET:
1758 nd = hists__filter_entries(rb_first(browser->entries),
1759 hb->min_pcnt);
1760 break;
1761 case SEEK_CUR:
1762 nd = browser->top;
1763 goto do_offset;
1764 case SEEK_END:
1765 nd = rb_hierarchy_last(rb_last(browser->entries));
1766 nd = hists__filter_prev_entries(nd, hb->min_pcnt);
1767 first = false;
1768 break;
1769 default:
1770 return;
1771 }
1772
1773 /*
1774 * Moves not relative to the first visible entry invalidates its
1775 * row_offset:
1776 */
1777 h = rb_entry(browser->top, struct hist_entry, rb_node);
1778 h->row_offset = 0;
1779
1780 /*
1781 * Here we have to check if nd is expanded (+), if it is we can't go
1782 * the next top level hist_entry, instead we must compute an offset of
1783 * what _not_ to show and not change the first visible entry.
1784 *
1785 * This offset increments when we are going from top to bottom and
1786 * decreases when we're going from bottom to top.
1787 *
1788 * As we don't have backpointers to the top level in the callchains
1789 * structure, we need to always print the whole hist_entry callchain,
1790 * skipping the first ones that are before the first visible entry
1791 * and stop when we printed enough lines to fill the screen.
1792 */
1793 do_offset:
1794 if (!nd)
1795 return;
1796
1797 if (offset > 0) {
1798 do {
1799 h = rb_entry(nd, struct hist_entry, rb_node);
1800 if (h->unfolded && h->leaf) {
1801 u16 remaining = h->nr_rows - h->row_offset;
1802 if (offset > remaining) {
1803 offset -= remaining;
1804 h->row_offset = 0;
1805 } else {
1806 h->row_offset += offset;
1807 offset = 0;
1808 browser->top = nd;
1809 break;
1810 }
1811 }
1812 nd = hists__filter_entries(rb_hierarchy_next(nd),
1813 hb->min_pcnt);
1814 if (nd == NULL)
1815 break;
1816 --offset;
1817 browser->top = nd;
1818 } while (offset != 0);
1819 } else if (offset < 0) {
1820 while (1) {
1821 h = rb_entry(nd, struct hist_entry, rb_node);
1822 if (h->unfolded && h->leaf) {
1823 if (first) {
1824 if (-offset > h->row_offset) {
1825 offset += h->row_offset;
1826 h->row_offset = 0;
1827 } else {
1828 h->row_offset += offset;
1829 offset = 0;
1830 browser->top = nd;
1831 break;
1832 }
1833 } else {
1834 if (-offset > h->nr_rows) {
1835 offset += h->nr_rows;
1836 h->row_offset = 0;
1837 } else {
1838 h->row_offset = h->nr_rows + offset;
1839 offset = 0;
1840 browser->top = nd;
1841 break;
1842 }
1843 }
1844 }
1845
1846 nd = hists__filter_prev_entries(rb_hierarchy_prev(nd),
1847 hb->min_pcnt);
1848 if (nd == NULL)
1849 break;
1850 ++offset;
1851 browser->top = nd;
1852 if (offset == 0) {
1853 /*
1854 * Last unfiltered hist_entry, check if it is
1855 * unfolded, if it is then we should have
1856 * row_offset at its last entry.
1857 */
1858 h = rb_entry(nd, struct hist_entry, rb_node);
1859 if (h->unfolded && h->leaf)
1860 h->row_offset = h->nr_rows;
1861 break;
1862 }
1863 first = false;
1864 }
1865 } else {
1866 browser->top = nd;
1867 h = rb_entry(nd, struct hist_entry, rb_node);
1868 h->row_offset = 0;
1869 }
1870 }
1871
1872 static int hist_browser__fprintf_callchain(struct hist_browser *browser,
1873 struct hist_entry *he, FILE *fp,
1874 int level)
1875 {
1876 struct callchain_print_arg arg = {
1877 .fp = fp,
1878 };
1879
1880 hist_browser__show_callchain(browser, he, level, 0,
1881 hist_browser__fprintf_callchain_entry, &arg,
1882 hist_browser__check_dump_full);
1883 return arg.printed;
1884 }
1885
1886 static int hist_browser__fprintf_entry(struct hist_browser *browser,
1887 struct hist_entry *he, FILE *fp)
1888 {
1889 char s[8192];
1890 int printed = 0;
1891 char folded_sign = ' ';
1892 struct perf_hpp hpp = {
1893 .buf = s,
1894 .size = sizeof(s),
1895 };
1896 struct perf_hpp_fmt *fmt;
1897 bool first = true;
1898 int ret;
1899
1900 if (symbol_conf.use_callchain)
1901 folded_sign = hist_entry__folded(he);
1902
1903 if (symbol_conf.use_callchain)
1904 printed += fprintf(fp, "%c ", folded_sign);
1905
1906 hists__for_each_format(browser->hists, fmt) {
1907 if (perf_hpp__should_skip(fmt, he->hists))
1908 continue;
1909
1910 if (!first) {
1911 ret = scnprintf(hpp.buf, hpp.size, " ");
1912 advance_hpp(&hpp, ret);
1913 } else
1914 first = false;
1915
1916 ret = fmt->entry(fmt, &hpp, he);
1917 ret = hist_entry__snprintf_alignment(he, &hpp, fmt, ret);
1918 advance_hpp(&hpp, ret);
1919 }
1920 printed += fprintf(fp, "%s\n", s);
1921
1922 if (folded_sign == '-')
1923 printed += hist_browser__fprintf_callchain(browser, he, fp, 1);
1924
1925 return printed;
1926 }
1927
1928
1929 static int hist_browser__fprintf_hierarchy_entry(struct hist_browser *browser,
1930 struct hist_entry *he,
1931 FILE *fp, int level)
1932 {
1933 char s[8192];
1934 int printed = 0;
1935 char folded_sign = ' ';
1936 struct perf_hpp hpp = {
1937 .buf = s,
1938 .size = sizeof(s),
1939 };
1940 struct perf_hpp_fmt *fmt;
1941 struct perf_hpp_list_node *fmt_node;
1942 bool first = true;
1943 int ret;
1944 int hierarchy_indent = (he->hists->nr_hpp_node - 2) * HIERARCHY_INDENT;
1945
1946 printed = fprintf(fp, "%*s", level * HIERARCHY_INDENT, "");
1947
1948 folded_sign = hist_entry__folded(he);
1949 printed += fprintf(fp, "%c", folded_sign);
1950
1951 /* the first hpp_list_node is for overhead columns */
1952 fmt_node = list_first_entry(&he->hists->hpp_formats,
1953 struct perf_hpp_list_node, list);
1954 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) {
1955 if (!first) {
1956 ret = scnprintf(hpp.buf, hpp.size, " ");
1957 advance_hpp(&hpp, ret);
1958 } else
1959 first = false;
1960
1961 ret = fmt->entry(fmt, &hpp, he);
1962 advance_hpp(&hpp, ret);
1963 }
1964
1965 ret = scnprintf(hpp.buf, hpp.size, "%*s", hierarchy_indent, "");
1966 advance_hpp(&hpp, ret);
1967
1968 perf_hpp_list__for_each_format(he->hpp_list, fmt) {
1969 ret = scnprintf(hpp.buf, hpp.size, " ");
1970 advance_hpp(&hpp, ret);
1971
1972 ret = fmt->entry(fmt, &hpp, he);
1973 advance_hpp(&hpp, ret);
1974 }
1975
1976 printed += fprintf(fp, "%s\n", rtrim(s));
1977
1978 if (he->leaf && folded_sign == '-') {
1979 printed += hist_browser__fprintf_callchain(browser, he, fp,
1980 he->depth + 1);
1981 }
1982
1983 return printed;
1984 }
1985
1986 static int hist_browser__fprintf(struct hist_browser *browser, FILE *fp)
1987 {
1988 struct rb_node *nd = hists__filter_entries(rb_first(browser->b.entries),
1989 browser->min_pcnt);
1990 int printed = 0;
1991
1992 while (nd) {
1993 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
1994
1995 if (symbol_conf.report_hierarchy) {
1996 printed += hist_browser__fprintf_hierarchy_entry(browser,
1997 h, fp,
1998 h->depth);
1999 } else {
2000 printed += hist_browser__fprintf_entry(browser, h, fp);
2001 }
2002
2003 nd = hists__filter_entries(rb_hierarchy_next(nd),
2004 browser->min_pcnt);
2005 }
2006
2007 return printed;
2008 }
2009
2010 static int hist_browser__dump(struct hist_browser *browser)
2011 {
2012 char filename[64];
2013 FILE *fp;
2014
2015 while (1) {
2016 scnprintf(filename, sizeof(filename), "perf.hist.%d", browser->print_seq);
2017 if (access(filename, F_OK))
2018 break;
2019 /*
2020 * XXX: Just an arbitrary lazy upper limit
2021 */
2022 if (++browser->print_seq == 8192) {
2023 ui_helpline__fpush("Too many perf.hist.N files, nothing written!");
2024 return -1;
2025 }
2026 }
2027
2028 fp = fopen(filename, "w");
2029 if (fp == NULL) {
2030 char bf[64];
2031 const char *err = strerror_r(errno, bf, sizeof(bf));
2032 ui_helpline__fpush("Couldn't write to %s: %s", filename, err);
2033 return -1;
2034 }
2035
2036 ++browser->print_seq;
2037 hist_browser__fprintf(browser, fp);
2038 fclose(fp);
2039 ui_helpline__fpush("%s written!", filename);
2040
2041 return 0;
2042 }
2043
2044 static struct hist_browser *hist_browser__new(struct hists *hists,
2045 struct hist_browser_timer *hbt,
2046 struct perf_env *env)
2047 {
2048 struct hist_browser *browser = zalloc(sizeof(*browser));
2049
2050 if (browser) {
2051 browser->hists = hists;
2052 browser->b.refresh = hist_browser__refresh;
2053 browser->b.refresh_dimensions = hist_browser__refresh_dimensions;
2054 browser->b.seek = ui_browser__hists_seek;
2055 browser->b.use_navkeypressed = true;
2056 browser->show_headers = symbol_conf.show_hist_headers;
2057 browser->hbt = hbt;
2058 browser->env = env;
2059 }
2060
2061 return browser;
2062 }
2063
2064 static void hist_browser__delete(struct hist_browser *browser)
2065 {
2066 free(browser);
2067 }
2068
2069 static struct hist_entry *hist_browser__selected_entry(struct hist_browser *browser)
2070 {
2071 return browser->he_selection;
2072 }
2073
2074 static struct thread *hist_browser__selected_thread(struct hist_browser *browser)
2075 {
2076 return browser->he_selection->thread;
2077 }
2078
2079 /* Check whether the browser is for 'top' or 'report' */
2080 static inline bool is_report_browser(void *timer)
2081 {
2082 return timer == NULL;
2083 }
2084
2085 static int hists__browser_title(struct hists *hists,
2086 struct hist_browser_timer *hbt,
2087 char *bf, size_t size)
2088 {
2089 char unit;
2090 int printed;
2091 const struct dso *dso = hists->dso_filter;
2092 const struct thread *thread = hists->thread_filter;
2093 int socket_id = hists->socket_filter;
2094 unsigned long nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE];
2095 u64 nr_events = hists->stats.total_period;
2096 struct perf_evsel *evsel = hists_to_evsel(hists);
2097 const char *ev_name = perf_evsel__name(evsel);
2098 char buf[512];
2099 size_t buflen = sizeof(buf);
2100 char ref[30] = " show reference callgraph, ";
2101 bool enable_ref = false;
2102
2103 if (symbol_conf.filter_relative) {
2104 nr_samples = hists->stats.nr_non_filtered_samples;
2105 nr_events = hists->stats.total_non_filtered_period;
2106 }
2107
2108 if (perf_evsel__is_group_event(evsel)) {
2109 struct perf_evsel *pos;
2110
2111 perf_evsel__group_desc(evsel, buf, buflen);
2112 ev_name = buf;
2113
2114 for_each_group_member(pos, evsel) {
2115 struct hists *pos_hists = evsel__hists(pos);
2116
2117 if (symbol_conf.filter_relative) {
2118 nr_samples += pos_hists->stats.nr_non_filtered_samples;
2119 nr_events += pos_hists->stats.total_non_filtered_period;
2120 } else {
2121 nr_samples += pos_hists->stats.nr_events[PERF_RECORD_SAMPLE];
2122 nr_events += pos_hists->stats.total_period;
2123 }
2124 }
2125 }
2126
2127 if (symbol_conf.show_ref_callgraph &&
2128 strstr(ev_name, "call-graph=no"))
2129 enable_ref = true;
2130 nr_samples = convert_unit(nr_samples, &unit);
2131 printed = scnprintf(bf, size,
2132 "Samples: %lu%c of event '%s',%sEvent count (approx.): %" PRIu64,
2133 nr_samples, unit, ev_name, enable_ref ? ref : " ", nr_events);
2134
2135
2136 if (hists->uid_filter_str)
2137 printed += snprintf(bf + printed, size - printed,
2138 ", UID: %s", hists->uid_filter_str);
2139 if (thread) {
2140 if (sort__has_thread) {
2141 printed += scnprintf(bf + printed, size - printed,
2142 ", Thread: %s(%d)",
2143 (thread->comm_set ? thread__comm_str(thread) : ""),
2144 thread->tid);
2145 } else {
2146 printed += scnprintf(bf + printed, size - printed,
2147 ", Thread: %s",
2148 (thread->comm_set ? thread__comm_str(thread) : ""));
2149 }
2150 }
2151 if (dso)
2152 printed += scnprintf(bf + printed, size - printed,
2153 ", DSO: %s", dso->short_name);
2154 if (socket_id > -1)
2155 printed += scnprintf(bf + printed, size - printed,
2156 ", Processor Socket: %d", socket_id);
2157 if (!is_report_browser(hbt)) {
2158 struct perf_top *top = hbt->arg;
2159
2160 if (top->zero)
2161 printed += scnprintf(bf + printed, size - printed, " [z]");
2162 }
2163
2164 return printed;
2165 }
2166
2167 static inline void free_popup_options(char **options, int n)
2168 {
2169 int i;
2170
2171 for (i = 0; i < n; ++i)
2172 zfree(&options[i]);
2173 }
2174
2175 /*
2176 * Only runtime switching of perf data file will make "input_name" point
2177 * to a malloced buffer. So add "is_input_name_malloced" flag to decide
2178 * whether we need to call free() for current "input_name" during the switch.
2179 */
2180 static bool is_input_name_malloced = false;
2181
2182 static int switch_data_file(void)
2183 {
2184 char *pwd, *options[32], *abs_path[32], *tmp;
2185 DIR *pwd_dir;
2186 int nr_options = 0, choice = -1, ret = -1;
2187 struct dirent *dent;
2188
2189 pwd = getenv("PWD");
2190 if (!pwd)
2191 return ret;
2192
2193 pwd_dir = opendir(pwd);
2194 if (!pwd_dir)
2195 return ret;
2196
2197 memset(options, 0, sizeof(options));
2198 memset(options, 0, sizeof(abs_path));
2199
2200 while ((dent = readdir(pwd_dir))) {
2201 char path[PATH_MAX];
2202 u64 magic;
2203 char *name = dent->d_name;
2204 FILE *file;
2205
2206 if (!(dent->d_type == DT_REG))
2207 continue;
2208
2209 snprintf(path, sizeof(path), "%s/%s", pwd, name);
2210
2211 file = fopen(path, "r");
2212 if (!file)
2213 continue;
2214
2215 if (fread(&magic, 1, 8, file) < 8)
2216 goto close_file_and_continue;
2217
2218 if (is_perf_magic(magic)) {
2219 options[nr_options] = strdup(name);
2220 if (!options[nr_options])
2221 goto close_file_and_continue;
2222
2223 abs_path[nr_options] = strdup(path);
2224 if (!abs_path[nr_options]) {
2225 zfree(&options[nr_options]);
2226 ui__warning("Can't search all data files due to memory shortage.\n");
2227 fclose(file);
2228 break;
2229 }
2230
2231 nr_options++;
2232 }
2233
2234 close_file_and_continue:
2235 fclose(file);
2236 if (nr_options >= 32) {
2237 ui__warning("Too many perf data files in PWD!\n"
2238 "Only the first 32 files will be listed.\n");
2239 break;
2240 }
2241 }
2242 closedir(pwd_dir);
2243
2244 if (nr_options) {
2245 choice = ui__popup_menu(nr_options, options);
2246 if (choice < nr_options && choice >= 0) {
2247 tmp = strdup(abs_path[choice]);
2248 if (tmp) {
2249 if (is_input_name_malloced)
2250 free((void *)input_name);
2251 input_name = tmp;
2252 is_input_name_malloced = true;
2253 ret = 0;
2254 } else
2255 ui__warning("Data switch failed due to memory shortage!\n");
2256 }
2257 }
2258
2259 free_popup_options(options, nr_options);
2260 free_popup_options(abs_path, nr_options);
2261 return ret;
2262 }
2263
2264 struct popup_action {
2265 struct thread *thread;
2266 struct map_symbol ms;
2267 int socket;
2268
2269 int (*fn)(struct hist_browser *browser, struct popup_action *act);
2270 };
2271
2272 static int
2273 do_annotate(struct hist_browser *browser, struct popup_action *act)
2274 {
2275 struct perf_evsel *evsel;
2276 struct annotation *notes;
2277 struct hist_entry *he;
2278 int err;
2279
2280 if (!objdump_path && perf_env__lookup_objdump(browser->env))
2281 return 0;
2282
2283 notes = symbol__annotation(act->ms.sym);
2284 if (!notes->src)
2285 return 0;
2286
2287 evsel = hists_to_evsel(browser->hists);
2288 err = map_symbol__tui_annotate(&act->ms, evsel, browser->hbt);
2289 he = hist_browser__selected_entry(browser);
2290 /*
2291 * offer option to annotate the other branch source or target
2292 * (if they exists) when returning from annotate
2293 */
2294 if ((err == 'q' || err == CTRL('c')) && he->branch_info)
2295 return 1;
2296
2297 ui_browser__update_nr_entries(&browser->b, browser->hists->nr_entries);
2298 if (err)
2299 ui_browser__handle_resize(&browser->b);
2300 return 0;
2301 }
2302
2303 static int
2304 add_annotate_opt(struct hist_browser *browser __maybe_unused,
2305 struct popup_action *act, char **optstr,
2306 struct map *map, struct symbol *sym)
2307 {
2308 if (sym == NULL || map->dso->annotate_warned)
2309 return 0;
2310
2311 if (asprintf(optstr, "Annotate %s", sym->name) < 0)
2312 return 0;
2313
2314 act->ms.map = map;
2315 act->ms.sym = sym;
2316 act->fn = do_annotate;
2317 return 1;
2318 }
2319
2320 static int
2321 do_zoom_thread(struct hist_browser *browser, struct popup_action *act)
2322 {
2323 struct thread *thread = act->thread;
2324
2325 if ((!sort__has_thread && !sort__has_comm) || thread == NULL)
2326 return 0;
2327
2328 if (browser->hists->thread_filter) {
2329 pstack__remove(browser->pstack, &browser->hists->thread_filter);
2330 perf_hpp__set_elide(HISTC_THREAD, false);
2331 thread__zput(browser->hists->thread_filter);
2332 ui_helpline__pop();
2333 } else {
2334 if (sort__has_thread) {
2335 ui_helpline__fpush("To zoom out press ESC or ENTER + \"Zoom out of %s(%d) thread\"",
2336 thread->comm_set ? thread__comm_str(thread) : "",
2337 thread->tid);
2338 } else {
2339 ui_helpline__fpush("To zoom out press ESC or ENTER + \"Zoom out of %s thread\"",
2340 thread->comm_set ? thread__comm_str(thread) : "");
2341 }
2342
2343 browser->hists->thread_filter = thread__get(thread);
2344 perf_hpp__set_elide(HISTC_THREAD, false);
2345 pstack__push(browser->pstack, &browser->hists->thread_filter);
2346 }
2347
2348 hists__filter_by_thread(browser->hists);
2349 hist_browser__reset(browser);
2350 return 0;
2351 }
2352
2353 static int
2354 add_thread_opt(struct hist_browser *browser, struct popup_action *act,
2355 char **optstr, struct thread *thread)
2356 {
2357 int ret;
2358
2359 if ((!sort__has_thread && !sort__has_comm) || thread == NULL)
2360 return 0;
2361
2362 if (sort__has_thread) {
2363 ret = asprintf(optstr, "Zoom %s %s(%d) thread",
2364 browser->hists->thread_filter ? "out of" : "into",
2365 thread->comm_set ? thread__comm_str(thread) : "",
2366 thread->tid);
2367 } else {
2368 ret = asprintf(optstr, "Zoom %s %s thread",
2369 browser->hists->thread_filter ? "out of" : "into",
2370 thread->comm_set ? thread__comm_str(thread) : "");
2371 }
2372 if (ret < 0)
2373 return 0;
2374
2375 act->thread = thread;
2376 act->fn = do_zoom_thread;
2377 return 1;
2378 }
2379
2380 static int
2381 do_zoom_dso(struct hist_browser *browser, struct popup_action *act)
2382 {
2383 struct map *map = act->ms.map;
2384
2385 if (!sort__has_dso || map == NULL)
2386 return 0;
2387
2388 if (browser->hists->dso_filter) {
2389 pstack__remove(browser->pstack, &browser->hists->dso_filter);
2390 perf_hpp__set_elide(HISTC_DSO, false);
2391 browser->hists->dso_filter = NULL;
2392 ui_helpline__pop();
2393 } else {
2394 if (map == NULL)
2395 return 0;
2396 ui_helpline__fpush("To zoom out press ESC or ENTER + \"Zoom out of %s DSO\"",
2397 __map__is_kernel(map) ? "the Kernel" : map->dso->short_name);
2398 browser->hists->dso_filter = map->dso;
2399 perf_hpp__set_elide(HISTC_DSO, true);
2400 pstack__push(browser->pstack, &browser->hists->dso_filter);
2401 }
2402
2403 hists__filter_by_dso(browser->hists);
2404 hist_browser__reset(browser);
2405 return 0;
2406 }
2407
2408 static int
2409 add_dso_opt(struct hist_browser *browser, struct popup_action *act,
2410 char **optstr, struct map *map)
2411 {
2412 if (!sort__has_dso || map == NULL)
2413 return 0;
2414
2415 if (asprintf(optstr, "Zoom %s %s DSO",
2416 browser->hists->dso_filter ? "out of" : "into",
2417 __map__is_kernel(map) ? "the Kernel" : map->dso->short_name) < 0)
2418 return 0;
2419
2420 act->ms.map = map;
2421 act->fn = do_zoom_dso;
2422 return 1;
2423 }
2424
2425 static int
2426 do_browse_map(struct hist_browser *browser __maybe_unused,
2427 struct popup_action *act)
2428 {
2429 map__browse(act->ms.map);
2430 return 0;
2431 }
2432
2433 static int
2434 add_map_opt(struct hist_browser *browser __maybe_unused,
2435 struct popup_action *act, char **optstr, struct map *map)
2436 {
2437 if (!sort__has_dso || map == NULL)
2438 return 0;
2439
2440 if (asprintf(optstr, "Browse map details") < 0)
2441 return 0;
2442
2443 act->ms.map = map;
2444 act->fn = do_browse_map;
2445 return 1;
2446 }
2447
2448 static int
2449 do_run_script(struct hist_browser *browser __maybe_unused,
2450 struct popup_action *act)
2451 {
2452 char script_opt[64];
2453 memset(script_opt, 0, sizeof(script_opt));
2454
2455 if (act->thread) {
2456 scnprintf(script_opt, sizeof(script_opt), " -c %s ",
2457 thread__comm_str(act->thread));
2458 } else if (act->ms.sym) {
2459 scnprintf(script_opt, sizeof(script_opt), " -S %s ",
2460 act->ms.sym->name);
2461 }
2462
2463 script_browse(script_opt);
2464 return 0;
2465 }
2466
2467 static int
2468 add_script_opt(struct hist_browser *browser __maybe_unused,
2469 struct popup_action *act, char **optstr,
2470 struct thread *thread, struct symbol *sym)
2471 {
2472 if (thread) {
2473 if (asprintf(optstr, "Run scripts for samples of thread [%s]",
2474 thread__comm_str(thread)) < 0)
2475 return 0;
2476 } else if (sym) {
2477 if (asprintf(optstr, "Run scripts for samples of symbol [%s]",
2478 sym->name) < 0)
2479 return 0;
2480 } else {
2481 if (asprintf(optstr, "Run scripts for all samples") < 0)
2482 return 0;
2483 }
2484
2485 act->thread = thread;
2486 act->ms.sym = sym;
2487 act->fn = do_run_script;
2488 return 1;
2489 }
2490
2491 static int
2492 do_switch_data(struct hist_browser *browser __maybe_unused,
2493 struct popup_action *act __maybe_unused)
2494 {
2495 if (switch_data_file()) {
2496 ui__warning("Won't switch the data files due to\n"
2497 "no valid data file get selected!\n");
2498 return 0;
2499 }
2500
2501 return K_SWITCH_INPUT_DATA;
2502 }
2503
2504 static int
2505 add_switch_opt(struct hist_browser *browser,
2506 struct popup_action *act, char **optstr)
2507 {
2508 if (!is_report_browser(browser->hbt))
2509 return 0;
2510
2511 if (asprintf(optstr, "Switch to another data file in PWD") < 0)
2512 return 0;
2513
2514 act->fn = do_switch_data;
2515 return 1;
2516 }
2517
2518 static int
2519 do_exit_browser(struct hist_browser *browser __maybe_unused,
2520 struct popup_action *act __maybe_unused)
2521 {
2522 return 0;
2523 }
2524
2525 static int
2526 add_exit_opt(struct hist_browser *browser __maybe_unused,
2527 struct popup_action *act, char **optstr)
2528 {
2529 if (asprintf(optstr, "Exit") < 0)
2530 return 0;
2531
2532 act->fn = do_exit_browser;
2533 return 1;
2534 }
2535
2536 static int
2537 do_zoom_socket(struct hist_browser *browser, struct popup_action *act)
2538 {
2539 if (!sort__has_socket || act->socket < 0)
2540 return 0;
2541
2542 if (browser->hists->socket_filter > -1) {
2543 pstack__remove(browser->pstack, &browser->hists->socket_filter);
2544 browser->hists->socket_filter = -1;
2545 perf_hpp__set_elide(HISTC_SOCKET, false);
2546 } else {
2547 browser->hists->socket_filter = act->socket;
2548 perf_hpp__set_elide(HISTC_SOCKET, true);
2549 pstack__push(browser->pstack, &browser->hists->socket_filter);
2550 }
2551
2552 hists__filter_by_socket(browser->hists);
2553 hist_browser__reset(browser);
2554 return 0;
2555 }
2556
2557 static int
2558 add_socket_opt(struct hist_browser *browser, struct popup_action *act,
2559 char **optstr, int socket_id)
2560 {
2561 if (!sort__has_socket || socket_id < 0)
2562 return 0;
2563
2564 if (asprintf(optstr, "Zoom %s Processor Socket %d",
2565 (browser->hists->socket_filter > -1) ? "out of" : "into",
2566 socket_id) < 0)
2567 return 0;
2568
2569 act->socket = socket_id;
2570 act->fn = do_zoom_socket;
2571 return 1;
2572 }
2573
2574 static void hist_browser__update_nr_entries(struct hist_browser *hb)
2575 {
2576 u64 nr_entries = 0;
2577 struct rb_node *nd = rb_first(&hb->hists->entries);
2578
2579 if (hb->min_pcnt == 0 && !symbol_conf.report_hierarchy) {
2580 hb->nr_non_filtered_entries = hb->hists->nr_non_filtered_entries;
2581 return;
2582 }
2583
2584 while ((nd = hists__filter_entries(nd, hb->min_pcnt)) != NULL) {
2585 nr_entries++;
2586 nd = rb_hierarchy_next(nd);
2587 }
2588
2589 hb->nr_non_filtered_entries = nr_entries;
2590 hb->nr_hierarchy_entries = nr_entries;
2591 }
2592
2593 static void hist_browser__update_percent_limit(struct hist_browser *hb,
2594 double percent)
2595 {
2596 struct hist_entry *he;
2597 struct rb_node *nd = rb_first(&hb->hists->entries);
2598 u64 total = hists__total_period(hb->hists);
2599 u64 min_callchain_hits = total * (percent / 100);
2600
2601 hb->min_pcnt = callchain_param.min_percent = percent;
2602
2603 while ((nd = hists__filter_entries(nd, hb->min_pcnt)) != NULL) {
2604 he = rb_entry(nd, struct hist_entry, rb_node);
2605
2606 if (he->has_no_entry) {
2607 he->has_no_entry = false;
2608 he->nr_rows = 0;
2609 }
2610
2611 if (!he->leaf || !symbol_conf.use_callchain)
2612 goto next;
2613
2614 if (callchain_param.mode == CHAIN_GRAPH_REL) {
2615 total = he->stat.period;
2616
2617 if (symbol_conf.cumulate_callchain)
2618 total = he->stat_acc->period;
2619
2620 min_callchain_hits = total * (percent / 100);
2621 }
2622
2623 callchain_param.sort(&he->sorted_chain, he->callchain,
2624 min_callchain_hits, &callchain_param);
2625
2626 next:
2627 nd = __rb_hierarchy_next(nd, HMD_FORCE_CHILD);
2628
2629 /* force to re-evaluate folding state of callchains */
2630 he->init_have_children = false;
2631 hist_entry__set_folding(he, hb, false);
2632 }
2633 }
2634
2635 static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
2636 const char *helpline,
2637 bool left_exits,
2638 struct hist_browser_timer *hbt,
2639 float min_pcnt,
2640 struct perf_env *env)
2641 {
2642 struct hists *hists = evsel__hists(evsel);
2643 struct hist_browser *browser = hist_browser__new(hists, hbt, env);
2644 struct branch_info *bi;
2645 #define MAX_OPTIONS 16
2646 char *options[MAX_OPTIONS];
2647 struct popup_action actions[MAX_OPTIONS];
2648 int nr_options = 0;
2649 int key = -1;
2650 char buf[64];
2651 int delay_secs = hbt ? hbt->refresh : 0;
2652 struct perf_hpp_fmt *fmt;
2653
2654 #define HIST_BROWSER_HELP_COMMON \
2655 "h/?/F1 Show this window\n" \
2656 "UP/DOWN/PGUP\n" \
2657 "PGDN/SPACE Navigate\n" \
2658 "q/ESC/CTRL+C Exit browser\n\n" \
2659 "For multiple event sessions:\n\n" \
2660 "TAB/UNTAB Switch events\n\n" \
2661 "For symbolic views (--sort has sym):\n\n" \
2662 "ENTER Zoom into DSO/Threads & Annotate current symbol\n" \
2663 "ESC Zoom out\n" \
2664 "a Annotate current symbol\n" \
2665 "C Collapse all callchains\n" \
2666 "d Zoom into current DSO\n" \
2667 "E Expand all callchains\n" \
2668 "F Toggle percentage of filtered entries\n" \
2669 "H Display column headers\n" \
2670 "L Change percent limit\n" \
2671 "m Display context menu\n" \
2672 "S Zoom into current Processor Socket\n" \
2673
2674 /* help messages are sorted by lexical order of the hotkey */
2675 const char report_help[] = HIST_BROWSER_HELP_COMMON
2676 "i Show header information\n"
2677 "P Print histograms to perf.hist.N\n"
2678 "r Run available scripts\n"
2679 "s Switch to another data file in PWD\n"
2680 "t Zoom into current Thread\n"
2681 "V Verbose (DSO names in callchains, etc)\n"
2682 "/ Filter symbol by name";
2683 const char top_help[] = HIST_BROWSER_HELP_COMMON
2684 "P Print histograms to perf.hist.N\n"
2685 "t Zoom into current Thread\n"
2686 "V Verbose (DSO names in callchains, etc)\n"
2687 "z Toggle zeroing of samples\n"
2688 "f Enable/Disable events\n"
2689 "/ Filter symbol by name";
2690
2691 if (browser == NULL)
2692 return -1;
2693
2694 /* reset abort key so that it can get Ctrl-C as a key */
2695 SLang_reset_tty();
2696 SLang_init_tty(0, 0, 0);
2697
2698 if (min_pcnt)
2699 browser->min_pcnt = min_pcnt;
2700 hist_browser__update_nr_entries(browser);
2701
2702 browser->pstack = pstack__new(3);
2703 if (browser->pstack == NULL)
2704 goto out;
2705
2706 ui_helpline__push(helpline);
2707
2708 memset(options, 0, sizeof(options));
2709 memset(actions, 0, sizeof(actions));
2710
2711 hists__for_each_format(browser->hists, fmt) {
2712 perf_hpp__reset_width(fmt, hists);
2713 /*
2714 * This is done just once, and activates the horizontal scrolling
2715 * code in the ui_browser code, it would be better to have a the
2716 * counter in the perf_hpp code, but I couldn't find doing it here
2717 * works, FIXME by setting this in hist_browser__new, for now, be
2718 * clever 8-)
2719 */
2720 ++browser->b.columns;
2721 }
2722
2723 if (symbol_conf.col_width_list_str)
2724 perf_hpp__set_user_width(symbol_conf.col_width_list_str);
2725
2726 while (1) {
2727 struct thread *thread = NULL;
2728 struct map *map = NULL;
2729 int choice = 0;
2730 int socked_id = -1;
2731
2732 nr_options = 0;
2733
2734 key = hist_browser__run(browser, helpline);
2735
2736 if (browser->he_selection != NULL) {
2737 thread = hist_browser__selected_thread(browser);
2738 map = browser->selection->map;
2739 socked_id = browser->he_selection->socket;
2740 }
2741 switch (key) {
2742 case K_TAB:
2743 case K_UNTAB:
2744 if (nr_events == 1)
2745 continue;
2746 /*
2747 * Exit the browser, let hists__browser_tree
2748 * go to the next or previous
2749 */
2750 goto out_free_stack;
2751 case 'a':
2752 if (!sort__has_sym) {
2753 ui_browser__warning(&browser->b, delay_secs * 2,
2754 "Annotation is only available for symbolic views, "
2755 "include \"sym*\" in --sort to use it.");
2756 continue;
2757 }
2758
2759 if (browser->selection == NULL ||
2760 browser->selection->sym == NULL ||
2761 browser->selection->map->dso->annotate_warned)
2762 continue;
2763
2764 actions->ms.map = browser->selection->map;
2765 actions->ms.sym = browser->selection->sym;
2766 do_annotate(browser, actions);
2767 continue;
2768 case 'P':
2769 hist_browser__dump(browser);
2770 continue;
2771 case 'd':
2772 actions->ms.map = map;
2773 do_zoom_dso(browser, actions);
2774 continue;
2775 case 'V':
2776 browser->show_dso = !browser->show_dso;
2777 continue;
2778 case 't':
2779 actions->thread = thread;
2780 do_zoom_thread(browser, actions);
2781 continue;
2782 case 'S':
2783 actions->socket = socked_id;
2784 do_zoom_socket(browser, actions);
2785 continue;
2786 case '/':
2787 if (ui_browser__input_window("Symbol to show",
2788 "Please enter the name of symbol you want to see.\n"
2789 "To remove the filter later, press / + ENTER.",
2790 buf, "ENTER: OK, ESC: Cancel",
2791 delay_secs * 2) == K_ENTER) {
2792 hists->symbol_filter_str = *buf ? buf : NULL;
2793 hists__filter_by_symbol(hists);
2794 hist_browser__reset(browser);
2795 }
2796 continue;
2797 case 'r':
2798 if (is_report_browser(hbt)) {
2799 actions->thread = NULL;
2800 actions->ms.sym = NULL;
2801 do_run_script(browser, actions);
2802 }
2803 continue;
2804 case 's':
2805 if (is_report_browser(hbt)) {
2806 key = do_switch_data(browser, actions);
2807 if (key == K_SWITCH_INPUT_DATA)
2808 goto out_free_stack;
2809 }
2810 continue;
2811 case 'i':
2812 /* env->arch is NULL for live-mode (i.e. perf top) */
2813 if (env->arch)
2814 tui__header_window(env);
2815 continue;
2816 case 'F':
2817 symbol_conf.filter_relative ^= 1;
2818 continue;
2819 case 'z':
2820 if (!is_report_browser(hbt)) {
2821 struct perf_top *top = hbt->arg;
2822
2823 top->zero = !top->zero;
2824 }
2825 continue;
2826 case 'L':
2827 if (ui_browser__input_window("Percent Limit",
2828 "Please enter the value you want to hide entries under that percent.",
2829 buf, "ENTER: OK, ESC: Cancel",
2830 delay_secs * 2) == K_ENTER) {
2831 char *end;
2832 double new_percent = strtod(buf, &end);
2833
2834 if (new_percent < 0 || new_percent > 100) {
2835 ui_browser__warning(&browser->b, delay_secs * 2,
2836 "Invalid percent: %.2f", new_percent);
2837 continue;
2838 }
2839
2840 hist_browser__update_percent_limit(browser, new_percent);
2841 hist_browser__reset(browser);
2842 }
2843 continue;
2844 case K_F1:
2845 case 'h':
2846 case '?':
2847 ui_browser__help_window(&browser->b,
2848 is_report_browser(hbt) ? report_help : top_help);
2849 continue;
2850 case K_ENTER:
2851 case K_RIGHT:
2852 case 'm':
2853 /* menu */
2854 break;
2855 case K_ESC:
2856 case K_LEFT: {
2857 const void *top;
2858
2859 if (pstack__empty(browser->pstack)) {
2860 /*
2861 * Go back to the perf_evsel_menu__run or other user
2862 */
2863 if (left_exits)
2864 goto out_free_stack;
2865
2866 if (key == K_ESC &&
2867 ui_browser__dialog_yesno(&browser->b,
2868 "Do you really want to exit?"))
2869 goto out_free_stack;
2870
2871 continue;
2872 }
2873 top = pstack__peek(browser->pstack);
2874 if (top == &browser->hists->dso_filter) {
2875 /*
2876 * No need to set actions->dso here since
2877 * it's just to remove the current filter.
2878 * Ditto for thread below.
2879 */
2880 do_zoom_dso(browser, actions);
2881 } else if (top == &browser->hists->thread_filter) {
2882 do_zoom_thread(browser, actions);
2883 } else if (top == &browser->hists->socket_filter) {
2884 do_zoom_socket(browser, actions);
2885 }
2886 continue;
2887 }
2888 case 'q':
2889 case CTRL('c'):
2890 goto out_free_stack;
2891 case 'f':
2892 if (!is_report_browser(hbt)) {
2893 struct perf_top *top = hbt->arg;
2894
2895 perf_evlist__toggle_enable(top->evlist);
2896 /*
2897 * No need to refresh, resort/decay histogram
2898 * entries if we are not collecting samples:
2899 */
2900 if (top->evlist->enabled) {
2901 helpline = "Press 'f' to disable the events or 'h' to see other hotkeys";
2902 hbt->refresh = delay_secs;
2903 } else {
2904 helpline = "Press 'f' again to re-enable the events";
2905 hbt->refresh = 0;
2906 }
2907 continue;
2908 }
2909 /* Fall thru */
2910 default:
2911 helpline = "Press '?' for help on key bindings";
2912 continue;
2913 }
2914
2915 if (!sort__has_sym || browser->selection == NULL)
2916 goto skip_annotation;
2917
2918 if (sort__mode == SORT_MODE__BRANCH) {
2919 bi = browser->he_selection->branch_info;
2920
2921 if (bi == NULL)
2922 goto skip_annotation;
2923
2924 nr_options += add_annotate_opt(browser,
2925 &actions[nr_options],
2926 &options[nr_options],
2927 bi->from.map,
2928 bi->from.sym);
2929 if (bi->to.sym != bi->from.sym)
2930 nr_options += add_annotate_opt(browser,
2931 &actions[nr_options],
2932 &options[nr_options],
2933 bi->to.map,
2934 bi->to.sym);
2935 } else {
2936 nr_options += add_annotate_opt(browser,
2937 &actions[nr_options],
2938 &options[nr_options],
2939 browser->selection->map,
2940 browser->selection->sym);
2941 }
2942 skip_annotation:
2943 nr_options += add_thread_opt(browser, &actions[nr_options],
2944 &options[nr_options], thread);
2945 nr_options += add_dso_opt(browser, &actions[nr_options],
2946 &options[nr_options], map);
2947 nr_options += add_map_opt(browser, &actions[nr_options],
2948 &options[nr_options],
2949 browser->selection ?
2950 browser->selection->map : NULL);
2951 nr_options += add_socket_opt(browser, &actions[nr_options],
2952 &options[nr_options],
2953 socked_id);
2954 /* perf script support */
2955 if (!is_report_browser(hbt))
2956 goto skip_scripting;
2957
2958 if (browser->he_selection) {
2959 if (sort__has_thread && thread) {
2960 nr_options += add_script_opt(browser,
2961 &actions[nr_options],
2962 &options[nr_options],
2963 thread, NULL);
2964 }
2965 /*
2966 * Note that browser->selection != NULL
2967 * when browser->he_selection is not NULL,
2968 * so we don't need to check browser->selection
2969 * before fetching browser->selection->sym like what
2970 * we do before fetching browser->selection->map.
2971 *
2972 * See hist_browser__show_entry.
2973 */
2974 if (sort__has_sym && browser->selection->sym) {
2975 nr_options += add_script_opt(browser,
2976 &actions[nr_options],
2977 &options[nr_options],
2978 NULL, browser->selection->sym);
2979 }
2980 }
2981 nr_options += add_script_opt(browser, &actions[nr_options],
2982 &options[nr_options], NULL, NULL);
2983 nr_options += add_switch_opt(browser, &actions[nr_options],
2984 &options[nr_options]);
2985 skip_scripting:
2986 nr_options += add_exit_opt(browser, &actions[nr_options],
2987 &options[nr_options]);
2988
2989 do {
2990 struct popup_action *act;
2991
2992 choice = ui__popup_menu(nr_options, options);
2993 if (choice == -1 || choice >= nr_options)
2994 break;
2995
2996 act = &actions[choice];
2997 key = act->fn(browser, act);
2998 } while (key == 1);
2999
3000 if (key == K_SWITCH_INPUT_DATA)
3001 break;
3002 }
3003 out_free_stack:
3004 pstack__delete(browser->pstack);
3005 out:
3006 hist_browser__delete(browser);
3007 free_popup_options(options, MAX_OPTIONS);
3008 return key;
3009 }
3010
3011 struct perf_evsel_menu {
3012 struct ui_browser b;
3013 struct perf_evsel *selection;
3014 bool lost_events, lost_events_warned;
3015 float min_pcnt;
3016 struct perf_env *env;
3017 };
3018
3019 static void perf_evsel_menu__write(struct ui_browser *browser,
3020 void *entry, int row)
3021 {
3022 struct perf_evsel_menu *menu = container_of(browser,
3023 struct perf_evsel_menu, b);
3024 struct perf_evsel *evsel = list_entry(entry, struct perf_evsel, node);
3025 struct hists *hists = evsel__hists(evsel);
3026 bool current_entry = ui_browser__is_current_entry(browser, row);
3027 unsigned long nr_events = hists->stats.nr_events[PERF_RECORD_SAMPLE];
3028 const char *ev_name = perf_evsel__name(evsel);
3029 char bf[256], unit;
3030 const char *warn = " ";
3031 size_t printed;
3032
3033 ui_browser__set_color(browser, current_entry ? HE_COLORSET_SELECTED :
3034 HE_COLORSET_NORMAL);
3035
3036 if (perf_evsel__is_group_event(evsel)) {
3037 struct perf_evsel *pos;
3038
3039 ev_name = perf_evsel__group_name(evsel);
3040
3041 for_each_group_member(pos, evsel) {
3042 struct hists *pos_hists = evsel__hists(pos);
3043 nr_events += pos_hists->stats.nr_events[PERF_RECORD_SAMPLE];
3044 }
3045 }
3046
3047 nr_events = convert_unit(nr_events, &unit);
3048 printed = scnprintf(bf, sizeof(bf), "%lu%c%s%s", nr_events,
3049 unit, unit == ' ' ? "" : " ", ev_name);
3050 ui_browser__printf(browser, "%s", bf);
3051
3052 nr_events = hists->stats.nr_events[PERF_RECORD_LOST];
3053 if (nr_events != 0) {
3054 menu->lost_events = true;
3055 if (!current_entry)
3056 ui_browser__set_color(browser, HE_COLORSET_TOP);
3057 nr_events = convert_unit(nr_events, &unit);
3058 printed += scnprintf(bf, sizeof(bf), ": %ld%c%schunks LOST!",
3059 nr_events, unit, unit == ' ' ? "" : " ");
3060 warn = bf;
3061 }
3062
3063 ui_browser__write_nstring(browser, warn, browser->width - printed);
3064
3065 if (current_entry)
3066 menu->selection = evsel;
3067 }
3068
3069 static int perf_evsel_menu__run(struct perf_evsel_menu *menu,
3070 int nr_events, const char *help,
3071 struct hist_browser_timer *hbt)
3072 {
3073 struct perf_evlist *evlist = menu->b.priv;
3074 struct perf_evsel *pos;
3075 const char *title = "Available samples";
3076 int delay_secs = hbt ? hbt->refresh : 0;
3077 int key;
3078
3079 if (ui_browser__show(&menu->b, title,
3080 "ESC: exit, ENTER|->: Browse histograms") < 0)
3081 return -1;
3082
3083 while (1) {
3084 key = ui_browser__run(&menu->b, delay_secs);
3085
3086 switch (key) {
3087 case K_TIMER:
3088 hbt->timer(hbt->arg);
3089
3090 if (!menu->lost_events_warned && menu->lost_events) {
3091 ui_browser__warn_lost_events(&menu->b);
3092 menu->lost_events_warned = true;
3093 }
3094 continue;
3095 case K_RIGHT:
3096 case K_ENTER:
3097 if (!menu->selection)
3098 continue;
3099 pos = menu->selection;
3100 browse_hists:
3101 perf_evlist__set_selected(evlist, pos);
3102 /*
3103 * Give the calling tool a chance to populate the non
3104 * default evsel resorted hists tree.
3105 */
3106 if (hbt)
3107 hbt->timer(hbt->arg);
3108 key = perf_evsel__hists_browse(pos, nr_events, help,
3109 true, hbt,
3110 menu->min_pcnt,
3111 menu->env);
3112 ui_browser__show_title(&menu->b, title);
3113 switch (key) {
3114 case K_TAB:
3115 if (pos->node.next == &evlist->entries)
3116 pos = perf_evlist__first(evlist);
3117 else
3118 pos = perf_evsel__next(pos);
3119 goto browse_hists;
3120 case K_UNTAB:
3121 if (pos->node.prev == &evlist->entries)
3122 pos = perf_evlist__last(evlist);
3123 else
3124 pos = perf_evsel__prev(pos);
3125 goto browse_hists;
3126 case K_SWITCH_INPUT_DATA:
3127 case 'q':
3128 case CTRL('c'):
3129 goto out;
3130 case K_ESC:
3131 default:
3132 continue;
3133 }
3134 case K_LEFT:
3135 continue;
3136 case K_ESC:
3137 if (!ui_browser__dialog_yesno(&menu->b,
3138 "Do you really want to exit?"))
3139 continue;
3140 /* Fall thru */
3141 case 'q':
3142 case CTRL('c'):
3143 goto out;
3144 default:
3145 continue;
3146 }
3147 }
3148
3149 out:
3150 ui_browser__hide(&menu->b);
3151 return key;
3152 }
3153
3154 static bool filter_group_entries(struct ui_browser *browser __maybe_unused,
3155 void *entry)
3156 {
3157 struct perf_evsel *evsel = list_entry(entry, struct perf_evsel, node);
3158
3159 if (symbol_conf.event_group && !perf_evsel__is_group_leader(evsel))
3160 return true;
3161
3162 return false;
3163 }
3164
3165 static int __perf_evlist__tui_browse_hists(struct perf_evlist *evlist,
3166 int nr_entries, const char *help,
3167 struct hist_browser_timer *hbt,
3168 float min_pcnt,
3169 struct perf_env *env)
3170 {
3171 struct perf_evsel *pos;
3172 struct perf_evsel_menu menu = {
3173 .b = {
3174 .entries = &evlist->entries,
3175 .refresh = ui_browser__list_head_refresh,
3176 .seek = ui_browser__list_head_seek,
3177 .write = perf_evsel_menu__write,
3178 .filter = filter_group_entries,
3179 .nr_entries = nr_entries,
3180 .priv = evlist,
3181 },
3182 .min_pcnt = min_pcnt,
3183 .env = env,
3184 };
3185
3186 ui_helpline__push("Press ESC to exit");
3187
3188 evlist__for_each(evlist, pos) {
3189 const char *ev_name = perf_evsel__name(pos);
3190 size_t line_len = strlen(ev_name) + 7;
3191
3192 if (menu.b.width < line_len)
3193 menu.b.width = line_len;
3194 }
3195
3196 return perf_evsel_menu__run(&menu, nr_entries, help, hbt);
3197 }
3198
3199 int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help,
3200 struct hist_browser_timer *hbt,
3201 float min_pcnt,
3202 struct perf_env *env)
3203 {
3204 int nr_entries = evlist->nr_entries;
3205
3206 single_entry:
3207 if (nr_entries == 1) {
3208 struct perf_evsel *first = perf_evlist__first(evlist);
3209
3210 return perf_evsel__hists_browse(first, nr_entries, help,
3211 false, hbt, min_pcnt,
3212 env);
3213 }
3214
3215 if (symbol_conf.event_group) {
3216 struct perf_evsel *pos;
3217
3218 nr_entries = 0;
3219 evlist__for_each(evlist, pos) {
3220 if (perf_evsel__is_group_leader(pos))
3221 nr_entries++;
3222 }
3223
3224 if (nr_entries == 1)
3225 goto single_entry;
3226 }
3227
3228 return __perf_evlist__tui_browse_hists(evlist, nr_entries, help,
3229 hbt, min_pcnt, env);
3230 }
Linux kernel - Deliverables
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