summaryrefslogtreecommitdiffstats
path: root/tools/perf/ui/hist.c
blob: 59addd52d9cd51ab2d8789989a9d377d2ce23eb5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
#include <inttypes.h>
#include <math.h>
#include <linux/compiler.h>

#include "../util/hist.h"
#include "../util/util.h"
#include "../util/sort.h"
#include "../util/evsel.h"
#include "../util/evlist.h"

/* hist period print (hpp) functions */

#define hpp__call_print_fn(hpp, fn, fmt, ...)			\
({								\
	int __ret = fn(hpp, fmt, ##__VA_ARGS__);		\
	advance_hpp(hpp, __ret);				\
	__ret;							\
})

static int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
		      hpp_field_fn get_field, const char *fmt, int len,
		      hpp_snprint_fn print_fn, bool fmt_percent)
{
	int ret;
	struct hists *hists = he->hists;
	struct perf_evsel *evsel = hists_to_evsel(hists);
	char *buf = hpp->buf;
	size_t size = hpp->size;

	if (fmt_percent) {
		double percent = 0.0;
		u64 total = hists__total_period(hists);

		if (total)
			percent = 100.0 * get_field(he) / total;

		ret = hpp__call_print_fn(hpp, print_fn, fmt, len, percent);
	} else
		ret = hpp__call_print_fn(hpp, print_fn, fmt, len, get_field(he));

	if (perf_evsel__is_group_event(evsel)) {
		int prev_idx, idx_delta;
		struct hist_entry *pair;
		int nr_members = evsel->nr_members;

		prev_idx = perf_evsel__group_idx(evsel);

		list_for_each_entry(pair, &he->pairs.head, pairs.node) {
			u64 period = get_field(pair);
			u64 total = hists__total_period(pair->hists);

			if (!total)
				continue;

			evsel = hists_to_evsel(pair->hists);
			idx_delta = perf_evsel__group_idx(evsel) - prev_idx - 1;

			while (idx_delta--) {
				/*
				 * zero-fill group members in the middle which
				 * have no sample
				 */
				if (fmt_percent) {
					ret += hpp__call_print_fn(hpp, print_fn,
								  fmt, len, 0.0);
				} else {
					ret += hpp__call_print_fn(hpp, print_fn,
								  fmt, len, 0ULL);
				}
			}

			if (fmt_percent) {
				ret += hpp__call_print_fn(hpp, print_fn, fmt, len,
							  100.0 * period / total);
			} else {
				ret += hpp__call_print_fn(hpp, print_fn, fmt,
							  len, period);
			}

			prev_idx = perf_evsel__group_idx(evsel);
		}

		idx_delta = nr_members - prev_idx - 1;

		while (idx_delta--) {
			/*
			 * zero-fill group members at last which have no sample
			 */
			if (fmt_percent) {
				ret += hpp__call_print_fn(hpp, print_fn,
							  fmt, len, 0.0);
			} else {
				ret += hpp__call_print_fn(hpp, print_fn,
							  fmt, len, 0ULL);
			}
		}
	}

	/*
	 * Restore original buf and size as it's where caller expects
	 * the result will be saved.
	 */
	hpp->buf = buf;
	hpp->size = size;

	return ret;
}

int hpp__fmt(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
	     struct hist_entry *he, hpp_field_fn get_field,
	     const char *fmtstr, hpp_snprint_fn print_fn, bool fmt_percent)
{
	int len = fmt->user_len ?: fmt->len;

	if (symbol_conf.field_sep) {
		return __hpp__fmt(hpp, he, get_field, fmtstr, 1,
				  print_fn, fmt_percent);
	}

	if (fmt_percent)
		len -= 2; /* 2 for a space and a % sign */
	else
		len -= 1;

	return  __hpp__fmt(hpp, he, get_field, fmtstr, len, print_fn, fmt_percent);
}

int hpp__fmt_acc(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
		 struct hist_entry *he, hpp_field_fn get_field,
		 const char *fmtstr, hpp_snprint_fn print_fn, bool fmt_percent)
{
	if (!symbol_conf.cumulate_callchain) {
		int len = fmt->user_len ?: fmt->len;
		return snprintf(hpp->buf, hpp->size, " %*s", len - 1, "N/A");
	}

	return hpp__fmt(fmt, hpp, he, get_field, fmtstr, print_fn, fmt_percent);
}

static int field_cmp(u64 field_a, u64 field_b)
{
	if (field_a > field_b)
		return 1;
	if (field_a < field_b)
		return -1;
	return 0;
}

static int __hpp__sort(struct hist_entry *a, struct hist_entry *b,
		       hpp_field_fn get_field)
{
	s64 ret;
	int i, nr_members;
	struct perf_evsel *evsel;
	struct hist_entry *pair;
	u64 *fields_a, *fields_b;

	ret = field_cmp(get_field(a), get_field(b));
	if (ret || !symbol_conf.event_group)
		return ret;

	evsel = hists_to_evsel(a->hists);
	if (!perf_evsel__is_group_event(evsel))
		return ret;

	nr_members = evsel->nr_members;
	fields_a = calloc(nr_members, sizeof(*fields_a));
	fields_b = calloc(nr_members, sizeof(*fields_b));

	if (!fields_a || !fields_b)
		goto out;

	list_for_each_entry(pair, &a->pairs.head, pairs.node) {
		evsel = hists_to_evsel(pair->hists);
		fields_a[perf_evsel__group_idx(evsel)] = get_field(pair);
	}

	list_for_each_entry(pair, &b->pairs.head, pairs.node) {
		evsel = hists_to_evsel(pair->hists);
		fields_b[perf_evsel__group_idx(evsel)] = get_field(pair);
	}

	for (i = 1; i < nr_members; i++) {
		ret = field_cmp(fields_a[i], fields_b[i]);
		if (ret)
			break;
	}

out:
	free(fields_a);
	free(fields_b);

	return ret;
}

static int __hpp__sort_acc(struct hist_entry *a, struct hist_entry *b,
			   hpp_field_fn get_field)
{
	s64 ret = 0;

	if (symbol_conf.cumulate_callchain) {
		/*
		 * Put caller above callee when they have equal period.
		 */
		ret = field_cmp(get_field(a), get_field(b));
		if (ret)
			return ret;

		if (a->thread != b->thread || !symbol_conf.use_callchain)
			return 0;

		ret = b->callchain->max_depth - a->callchain->max_depth;
	}
	return ret;
}

static int hpp__width_fn(struct perf_hpp_fmt *fmt,
			 struct perf_hpp *hpp __maybe_unused,
			 struct hists *hists)
{
	int len = fmt->user_len ?: fmt->len;
	struct perf_evsel *evsel = hists_to_evsel(hists);

	if (symbol_conf.event_group)
		len = max(len, evsel->nr_members * fmt->len);

	if (len < (int)strlen(fmt->name))
		len = strlen(fmt->name);

	return len;
}

static int hpp__header_fn(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
			  struct hists *hists, int line __maybe_unused,
			  int *span __maybe_unused)
{
	int len = hpp__width_fn(fmt, hpp, hists);
	return scnprintf(hpp->buf, hpp->size, "%*s", len, fmt->name);
}

int hpp_color_scnprintf(struct perf_hpp *hpp, const char *fmt, ...)
{
	va_list args;
	ssize_t ssize = hpp->size;
	double percent;
	int ret, len;

	va_start(args, fmt);
	len = va_arg(args, int);
	percent = va_arg(args, double);
	ret = percent_color_len_snprintf(hpp->buf, hpp->size, fmt, len, percent);
	va_end(args);

	return (ret >= ssize) ? (ssize - 1) : ret;
}

static int hpp_entry_scnprintf(struct perf_hpp *hpp, const char *fmt, ...)
{
	va_list args;
	ssize_t ssize = hpp->size;
	int ret;

	va_start(args, fmt);
	ret = vsnprintf(hpp->buf, hpp->size, fmt, args);
	va_end(args);

	return (ret >= ssize) ? (ssize - 1) : ret;
}

#define __HPP_COLOR_PERCENT_FN(_type, _field)					\
static u64 he_get_##_field(struct hist_entry *he)				\
{										\
	return he->stat._field;							\
}										\
										\
static int hpp__color_##_type(struct perf_hpp_fmt *fmt,				\
			      struct perf_hpp *hpp, struct hist_entry *he) 	\
{										\
	return hpp__fmt(fmt, hpp, he, he_get_##_field, " %*.2f%%",		\
			hpp_color_scnprintf, true);				\
}

#define __HPP_ENTRY_PERCENT_FN(_type, _field)					\
static int hpp__entry_##_type(struct perf_hpp_fmt *fmt,				\
			      struct perf_hpp *hpp, struct hist_entry *he) 	\
{										\
	return hpp__fmt(fmt, hpp, he, he_get_##_field, " %*.2f%%",		\
			hpp_entry_scnprintf, true);				\
}

#define __HPP_SORT_FN(_type, _field)						\
static int64_t hpp__sort_##_type(struct perf_hpp_fmt *fmt __maybe_unused, 	\
				 struct hist_entry *a, struct hist_entry *b) 	\
{										\
	return __hpp__sort(a, b, he_get_##_field);				\
}

#define __HPP_COLOR_ACC_PERCENT_FN(_type, _field)				\
static u64 he_get_acc_##_field(struct hist_entry *he)				\
{										\
	return he->stat_acc->_field;						\
}										\
										\
static int hpp__color_##_type(struct perf_hpp_fmt *fmt,				\
			      struct perf_hpp *hpp, struct hist_entry *he) 	\
{										\
	return hpp__fmt_acc(fmt, hpp, he, he_get_acc_##_field, " %*.2f%%", 	\
			    hpp_color_scnprintf, true);				\
}

#define __HPP_ENTRY_ACC_PERCENT_FN(_type, _field)				\
static int hpp__entry_##_type(struct perf_hpp_fmt *fmt,				\
			      struct perf_hpp *hpp, struct hist_entry *he) 	\
{										\
	return hpp__fmt_acc(fmt, hpp, he, he_get_acc_##_field, " %*.2f%%",	\
			    hpp_entry_scnprintf, true);				\
}

#define __HPP_SORT_ACC_FN(_type, _field)					\
static int64_t hpp__sort_##_type(struct perf_hpp_fmt *fmt __maybe_unused, 	\
				 struct hist_entry *a, struct hist_entry *b) 	\
{										\
	return __hpp__sort_acc(a, b, he_get_acc_##_field);			\
}

#define __HPP_ENTRY_RAW_FN(_type, _field)					\
static u64 he_get_raw_##_field(struct hist_entry *he)				\
{										\
	return he->stat._field;							\
}										\
										\
static int hpp__entry_##_type(struct perf_hpp_fmt *fmt,				\
			      struct perf_hpp *hpp, struct hist_entry *he) 	\
{										\
	return hpp__fmt(fmt, hpp, he, he_get_raw_##_field, " %*"PRIu64, 	\
			hpp_entry_scnprintf, false);				\
}

#define __HPP_SORT_RAW_FN(_type, _field)					\
static int64_t hpp__sort_##_type(struct perf_hpp_fmt *fmt __maybe_unused, 	\
				 struct hist_entry *a, struct hist_entry *b) 	\
{										\
	return __hpp__sort(a, b, he_get_raw_##_field);				\
}


#define HPP_PERCENT_FNS(_type, _field)					\
__HPP_COLOR_PERCENT_FN(_type, _field)					\
__HPP_ENTRY_PERCENT_FN(_type, _field)					\
__HPP_SORT_FN(_type, _field)

#define HPP_PERCENT_ACC_FNS(_type, _field)				\
__HPP_COLOR_ACC_PERCENT_FN(_type, _field)				\
__HPP_ENTRY_ACC_PERCENT_FN(_type, _field)				\
__HPP_SORT_ACC_FN(_type, _field)

#define HPP_RAW_FNS(_type, _field)					\
__HPP_ENTRY_RAW_FN(_type, _field)					\
__HPP_SORT_RAW_FN(_type, _field)

HPP_PERCENT_FNS(overhead, period)
HPP_PERCENT_FNS(overhead_sys, period_sys)
HPP_PERCENT_FNS(overhead_us, period_us)
HPP_PERCENT_FNS(overhead_guest_sys, period_guest_sys)
HPP_PERCENT_FNS(overhead_guest_us, period_guest_us)
HPP_PERCENT_ACC_FNS(overhead_acc, period)

HPP_RAW_FNS(samples, nr_events)
HPP_RAW_FNS(period, period)

static int64_t hpp__nop_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
			    struct hist_entry *a __maybe_unused,
			    struct hist_entry *b __maybe_unused)
{
	return 0;
}

static bool perf_hpp__is_hpp_entry(struct perf_hpp_fmt *a)
{
	return a->header == hpp__header_fn;
}

static bool hpp__equal(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b)
{
	if (!perf_hpp__is_hpp_entry(a) || !perf_hpp__is_hpp_entry(b))
		return false;

	return a->idx == b->idx;
}

#define HPP__COLOR_PRINT_FNS(_name, _fn, _idx)		\
	{						\
		.name   = _name,			\
		.header	= hpp__header_fn,		\
		.width	= hpp__width_fn,		\
		.color	= hpp__color_ ## _fn,		\
		.entry	= hpp__entry_ ## _fn,		\
		.cmp	= hpp__nop_cmp,			\
		.collapse = hpp__nop_cmp,		\
		.sort	= hpp__sort_ ## _fn,		\
		.idx	= PERF_HPP__ ## _idx,		\
		.equal	= hpp__equal,			\
	}

#define HPP__COLOR_ACC_PRINT_FNS(_name, _fn, _idx)	\
	{						\
		.name   = _name,			\
		.header	= hpp__header_fn,		\
		.width	= hpp__width_fn,		\
		.color	= hpp__color_ ## _fn,		\
		.entry	= hpp__entry_ ## _fn,		\
		.cmp	= hpp__nop_cmp,			\
		.collapse = hpp__nop_cmp,		\
		.sort	= hpp__sort_ ## _fn,		\
		.idx	= PERF_HPP__ ## _idx,		\
		.equal	= hpp__equal,			\
	}

#define HPP__PRINT_FNS(_name, _fn, _idx)		\
	{						\
		.name   = _name,			\
		.header	= hpp__header_fn,		\
		.width	= hpp__width_fn,		\
		.entry	= hpp__entry_ ## _fn,		\
		.cmp	= hpp__nop_cmp,			\
		.collapse = hpp__nop_cmp,		\
		.sort	= hpp__sort_ ## _fn,		\
		.idx	= PERF_HPP__ ## _idx,		\
		.equal	= hpp__equal,			\
	}

struct perf_hpp_fmt perf_hpp__format[] = {
	HPP__COLOR_PRINT_FNS("Overhead", overhead, OVERHEAD),
	HPP__COLOR_PRINT_FNS("sys", overhead_sys, OVERHEAD_SYS),
	HPP__COLOR_PRINT_FNS("usr", overhead_us, OVERHEAD_US),
	HPP__COLOR_PRINT_FNS("guest sys", overhead_guest_sys, OVERHEAD_GUEST_SYS),
	HPP__COLOR_PRINT_FNS("guest usr", overhead_guest_us, OVERHEAD_GUEST_US),
	HPP__COLOR_ACC_PRINT_FNS("Children", overhead_acc, OVERHEAD_ACC),
	HPP__PRINT_FNS("Samples", samples, SAMPLES),
	HPP__PRINT_FNS("Period", period, PERIOD)
};

struct perf_hpp_list perf_hpp_list = {
	.fields	= LIST_HEAD_INIT(perf_hpp_list.fields),
	.sorts	= LIST_HEAD_INIT(perf_hpp_list.sorts),
	.nr_header_lines = 1,
};

#undef HPP__COLOR_PRINT_FNS
#undef HPP__COLOR_ACC_PRINT_FNS
#undef HPP__PRINT_FNS

#undef HPP_PERCENT_FNS
#undef HPP_PERCENT_ACC_FNS
#undef HPP_RAW_FNS

#undef __HPP_HEADER_FN
#undef __HPP_WIDTH_FN
#undef __HPP_COLOR_PERCENT_FN
#undef __HPP_ENTRY_PERCENT_FN
#undef __HPP_COLOR_ACC_PERCENT_FN
#undef __HPP_ENTRY_ACC_PERCENT_FN
#undef __HPP_ENTRY_RAW_FN
#undef __HPP_SORT_FN
#undef __HPP_SORT_ACC_FN
#undef __HPP_SORT_RAW_FN


void perf_hpp__init(void)
{
	int i;

	for (i = 0; i < PERF_HPP__MAX_INDEX; i++) {
		struct perf_hpp_fmt *fmt = &perf_hpp__format[i];

		INIT_LIST_HEAD(&fmt->list);

		/* sort_list may be linked by setup_sorting() */
		if (fmt->sort_list.next == NULL)
			INIT_LIST_HEAD(&fmt->sort_list);
	}

	/*
	 * If user specified field order, no need to setup default fields.
	 */
	if (is_strict_order(field_order))
		return;

	if (symbol_conf.cumulate_callchain) {
		hpp_dimension__add_output(PERF_HPP__OVERHEAD_ACC);
		perf_hpp__format[PERF_HPP__OVERHEAD].name = "Self";
	}

	hpp_dimension__add_output(PERF_HPP__OVERHEAD);

	if (symbol_conf.show_cpu_utilization) {
		hpp_dimension__add_output(PERF_HPP__OVERHEAD_SYS);
		hpp_dimension__add_output(PERF_HPP__OVERHEAD_US);

		if (perf_guest) {
			hpp_dimension__add_output(PERF_HPP__OVERHEAD_GUEST_SYS);
			hpp_dimension__add_output(PERF_HPP__OVERHEAD_GUEST_US);
		}
	}

	if (symbol_conf.show_nr_samples)
		hpp_dimension__add_output(PERF_HPP__SAMPLES);

	if (symbol_conf.show_total_period)
		hpp_dimension__add_output(PERF_HPP__PERIOD);
}

void perf_hpp_list__column_register(struct perf_hpp_list *list,
				    struct perf_hpp_fmt *format)
{
	list_add_tail(&format->list, &list->fields);
}

void perf_hpp_list__register_sort_field(struct perf_hpp_list *list,
					struct perf_hpp_fmt *format)
{
	list_add_tail(&format->sort_list, &list->sorts);
}

void perf_hpp_list__prepend_sort_field(struct perf_hpp_list *list,
				       struct perf_hpp_fmt *format)
{
	list_add(&format->sort_list, &list->sorts);
}

void perf_hpp__column_unregister(struct perf_hpp_fmt *format)
{
	list_del(&format->list);
}

void perf_hpp__cancel_cumulate(void)
{
	struct perf_hpp_fmt *fmt, *acc, *ovh, *tmp;

	if (is_strict_order(field_order))
		return;

	ovh = &perf_hpp__format[PERF_HPP__OVERHEAD];
	acc = &perf_hpp__format[PERF_HPP__OVERHEAD_ACC];

	perf_hpp_list__for_each_format_safe(&perf_hpp_list, fmt, tmp) {
		if (acc->equal(acc, fmt)) {
			perf_hpp__column_unregister(fmt);
			continue;
		}

		if (ovh->equal(ovh, fmt))
			fmt->name = "Overhead";
	}
}

static bool fmt_equal(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b)
{
	return a->equal && a->equal(a, b);
}

void perf_hpp__setup_output_field(struct perf_hpp_list *list)
{
	struct perf_hpp_fmt *fmt;

	/* append sort keys to output field */
	perf_hpp_list__for_each_sort_list(list, fmt) {
		struct perf_hpp_fmt *pos;

		/* skip sort-only fields ("sort_compute" in perf diff) */
		if (!fmt->entry && !fmt->color)
			continue;

		perf_hpp_list__for_each_format(list, pos) {
			if (fmt_equal(fmt, pos))
				goto next;
		}

		perf_hpp__column_register(fmt);
next:
		continue;
	}
}

void perf_hpp__append_sort_keys(struct perf_hpp_list *list)
{
	struct perf_hpp_fmt *fmt;

	/* append output fields to sort keys */
	perf_hpp_list__for_each_format(list, fmt) {
		struct perf_hpp_fmt *pos;

		perf_hpp_list__for_each_sort_list(list, pos) {
			if (fmt_equal(fmt, pos))
				goto next;
		}

		perf_hpp__register_sort_field(fmt);
next:
		continue;
	}
}


static void fmt_free(struct perf_hpp_fmt *fmt)
{
	if (fmt->free)
		fmt->free(fmt);
}

void perf_hpp__reset_output_field(struct perf_hpp_list *list)
{
	struct perf_hpp_fmt *fmt, *tmp;

	/* reset output fields */
	perf_hpp_list__for_each_format_safe(list, fmt, tmp) {
		list_del_init(&fmt->list);
		list_del_init(&fmt->sort_list);
		fmt_free(fmt);
	}

	/* reset sort keys */
	perf_hpp_list__for_each_sort_list_safe(list, fmt, tmp) {
		list_del_init(&fmt->list);
		list_del_init(&fmt->sort_list);
		fmt_free(fmt);
	}
}

/*
 * See hists__fprintf to match the column widths
 */
unsigned int hists__sort_list_width(struct hists *hists)
{
	struct perf_hpp_fmt *fmt;
	int ret = 0;
	bool first = true;
	struct perf_hpp dummy_hpp;

	hists__for_each_format(hists, fmt) {
		if (perf_hpp__should_skip(fmt, hists))
			continue;

		if (first)
			first = false;
		else
			ret += 2;

		ret += fmt->width(fmt, &dummy_hpp, hists);
	}

	if (verbose > 0 && hists__has(hists, sym)) /* Addr + origin */
		ret += 3 + BITS_PER_LONG / 4;

	return ret;
}

unsigned int hists__overhead_width(struct hists *hists)
{
	struct perf_hpp_fmt *fmt;
	int ret = 0;
	bool first = true;
	struct perf_hpp dummy_hpp;

	hists__for_each_format(hists, fmt) {
		if (perf_hpp__is_sort_entry(fmt) || perf_hpp__is_dynamic_entry(fmt))
			break;

		if (first)
			first = false;
		else
			ret += 2;

		ret += fmt->width(fmt, &dummy_hpp, hists);
	}

	return ret;
}

void perf_hpp__reset_width(struct perf_hpp_fmt *fmt, struct hists *hists)
{
	if (perf_hpp__is_sort_entry(fmt))
		return perf_hpp__reset_sort_width(fmt, hists);

	if (perf_hpp__is_dynamic_entry(fmt))
		return;

	BUG_ON(fmt->idx >= PERF_HPP__MAX_INDEX);

	switch (fmt->idx) {
	case PERF_HPP__OVERHEAD:
	case PERF_HPP__OVERHEAD_SYS:
	case PERF_HPP__OVERHEAD_US:
	case PERF_HPP__OVERHEAD_ACC:
		fmt->len = 8;
		break;

	case PERF_HPP__OVERHEAD_GUEST_SYS:
	case PERF_HPP__OVERHEAD_GUEST_US:
		fmt->len = 9;
		break;

	case PERF_HPP__SAMPLES:
	case PERF_HPP__PERIOD:
		fmt->len = 12;
		break;

	default:
		break;
	}
}

void hists__reset_column_width(struct hists *hists)
{
	struct perf_hpp_fmt *fmt;
	struct perf_hpp_list_node *node;

	hists__for_each_format(hists, fmt)
		perf_hpp__reset_width(fmt, hists);

	/* hierarchy entries have their own hpp list */
	list_for_each_entry(node, &hists->hpp_formats, list) {
		perf_hpp_list__for_each_format(&node->hpp, fmt)
			perf_hpp__reset_width(fmt, hists);
	}
}

void perf_hpp__set_user_width(const char *width_list_str)
{
	struct perf_hpp_fmt *fmt;
	const char *ptr = width_list_str;

	perf_hpp_list__for_each_format(&perf_hpp_list, fmt) {
		char *p;

		int len = strtol(ptr, &p, 10);
		fmt->user_len = len;

		if (*p == ',')
			ptr = p + 1;
		else
			break;
	}
}

static int add_hierarchy_fmt(struct hists *hists, struct perf_hpp_fmt *fmt)
{
	struct perf_hpp_list_node *node = NULL;
	struct perf_hpp_fmt *fmt_copy;
	bool found = false;
	bool skip = perf_hpp__should_skip(fmt, hists);

	list_for_each_entry(node, &hists->hpp_formats, list) {
		if (node->level == fmt->level) {
			found = true;
			break;
		}
	}

	if (!found) {
		node = malloc(sizeof(*node));
		if (node == NULL)
			return -1;

		node->skip = skip;
		node->level = fmt->level;
		perf_hpp_list__init(&node->hpp);

		hists->nr_hpp_node++;
		list_add_tail(&node->list, &hists->hpp_formats);
	}

	fmt_copy = perf_hpp_fmt__dup(fmt);
	if (fmt_copy == NULL)
		return -1;

	if (!skip)
		node->skip = false;

	list_add_tail(&fmt_copy->list, &node->hpp.fields);
	list_add_tail(&fmt_copy->sort_list, &node->hpp.sorts);

	return 0;
}

int perf_hpp__setup_hists_formats(struct perf_hpp_list *list,
				  struct perf_evlist *evlist)
{
	struct perf_evsel *evsel;
	struct perf_hpp_fmt *fmt;
	struct hists *hists;
	int ret;

	if (!symbol_conf.report_hierarchy)
		return 0;

	evlist__for_each_entry(evlist, evsel) {
		hists = evsel__hists(evsel);

		perf_hpp_list__for_each_sort_list(list, fmt) {
			if (perf_hpp__is_dynamic_entry(fmt) &&
			    !perf_hpp__defined_dynamic_entry(fmt, hists))
				continue;

			ret = add_hierarchy_fmt(hists, fmt);
			if (ret < 0)
				return ret;
		}
	}

	return 0;
}