xref: /openbmc/linux/tools/perf/ui/hist.c (revision dd5b2498)
1 // SPDX-License-Identifier: GPL-2.0
2 #include <inttypes.h>
3 #include <math.h>
4 #include <linux/compiler.h>
5 
6 #include "../util/callchain.h"
7 #include "../util/hist.h"
8 #include "../util/util.h"
9 #include "../util/sort.h"
10 #include "../util/evsel.h"
11 #include "../util/evlist.h"
12 
13 /* hist period print (hpp) functions */
14 
15 #define hpp__call_print_fn(hpp, fn, fmt, ...)			\
16 ({								\
17 	int __ret = fn(hpp, fmt, ##__VA_ARGS__);		\
18 	advance_hpp(hpp, __ret);				\
19 	__ret;							\
20 })
21 
22 static int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
23 		      hpp_field_fn get_field, const char *fmt, int len,
24 		      hpp_snprint_fn print_fn, bool fmt_percent)
25 {
26 	int ret;
27 	struct hists *hists = he->hists;
28 	struct perf_evsel *evsel = hists_to_evsel(hists);
29 	char *buf = hpp->buf;
30 	size_t size = hpp->size;
31 
32 	if (fmt_percent) {
33 		double percent = 0.0;
34 		u64 total = hists__total_period(hists);
35 
36 		if (total)
37 			percent = 100.0 * get_field(he) / total;
38 
39 		ret = hpp__call_print_fn(hpp, print_fn, fmt, len, percent);
40 	} else
41 		ret = hpp__call_print_fn(hpp, print_fn, fmt, len, get_field(he));
42 
43 	if (perf_evsel__is_group_event(evsel)) {
44 		int prev_idx, idx_delta;
45 		struct hist_entry *pair;
46 		int nr_members = evsel->nr_members;
47 
48 		prev_idx = perf_evsel__group_idx(evsel);
49 
50 		list_for_each_entry(pair, &he->pairs.head, pairs.node) {
51 			u64 period = get_field(pair);
52 			u64 total = hists__total_period(pair->hists);
53 
54 			if (!total)
55 				continue;
56 
57 			evsel = hists_to_evsel(pair->hists);
58 			idx_delta = perf_evsel__group_idx(evsel) - prev_idx - 1;
59 
60 			while (idx_delta--) {
61 				/*
62 				 * zero-fill group members in the middle which
63 				 * have no sample
64 				 */
65 				if (fmt_percent) {
66 					ret += hpp__call_print_fn(hpp, print_fn,
67 								  fmt, len, 0.0);
68 				} else {
69 					ret += hpp__call_print_fn(hpp, print_fn,
70 								  fmt, len, 0ULL);
71 				}
72 			}
73 
74 			if (fmt_percent) {
75 				ret += hpp__call_print_fn(hpp, print_fn, fmt, len,
76 							  100.0 * period / total);
77 			} else {
78 				ret += hpp__call_print_fn(hpp, print_fn, fmt,
79 							  len, period);
80 			}
81 
82 			prev_idx = perf_evsel__group_idx(evsel);
83 		}
84 
85 		idx_delta = nr_members - prev_idx - 1;
86 
87 		while (idx_delta--) {
88 			/*
89 			 * zero-fill group members at last which have no sample
90 			 */
91 			if (fmt_percent) {
92 				ret += hpp__call_print_fn(hpp, print_fn,
93 							  fmt, len, 0.0);
94 			} else {
95 				ret += hpp__call_print_fn(hpp, print_fn,
96 							  fmt, len, 0ULL);
97 			}
98 		}
99 	}
100 
101 	/*
102 	 * Restore original buf and size as it's where caller expects
103 	 * the result will be saved.
104 	 */
105 	hpp->buf = buf;
106 	hpp->size = size;
107 
108 	return ret;
109 }
110 
111 int hpp__fmt(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
112 	     struct hist_entry *he, hpp_field_fn get_field,
113 	     const char *fmtstr, hpp_snprint_fn print_fn, bool fmt_percent)
114 {
115 	int len = fmt->user_len ?: fmt->len;
116 
117 	if (symbol_conf.field_sep) {
118 		return __hpp__fmt(hpp, he, get_field, fmtstr, 1,
119 				  print_fn, fmt_percent);
120 	}
121 
122 	if (fmt_percent)
123 		len -= 2; /* 2 for a space and a % sign */
124 	else
125 		len -= 1;
126 
127 	return  __hpp__fmt(hpp, he, get_field, fmtstr, len, print_fn, fmt_percent);
128 }
129 
130 int hpp__fmt_acc(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
131 		 struct hist_entry *he, hpp_field_fn get_field,
132 		 const char *fmtstr, hpp_snprint_fn print_fn, bool fmt_percent)
133 {
134 	if (!symbol_conf.cumulate_callchain) {
135 		int len = fmt->user_len ?: fmt->len;
136 		return snprintf(hpp->buf, hpp->size, " %*s", len - 1, "N/A");
137 	}
138 
139 	return hpp__fmt(fmt, hpp, he, get_field, fmtstr, print_fn, fmt_percent);
140 }
141 
142 static int field_cmp(u64 field_a, u64 field_b)
143 {
144 	if (field_a > field_b)
145 		return 1;
146 	if (field_a < field_b)
147 		return -1;
148 	return 0;
149 }
150 
151 static int __hpp__sort(struct hist_entry *a, struct hist_entry *b,
152 		       hpp_field_fn get_field)
153 {
154 	s64 ret;
155 	int i, nr_members;
156 	struct perf_evsel *evsel;
157 	struct hist_entry *pair;
158 	u64 *fields_a, *fields_b;
159 
160 	ret = field_cmp(get_field(a), get_field(b));
161 	if (ret || !symbol_conf.event_group)
162 		return ret;
163 
164 	evsel = hists_to_evsel(a->hists);
165 	if (!perf_evsel__is_group_event(evsel))
166 		return ret;
167 
168 	nr_members = evsel->nr_members;
169 	fields_a = calloc(nr_members, sizeof(*fields_a));
170 	fields_b = calloc(nr_members, sizeof(*fields_b));
171 
172 	if (!fields_a || !fields_b)
173 		goto out;
174 
175 	list_for_each_entry(pair, &a->pairs.head, pairs.node) {
176 		evsel = hists_to_evsel(pair->hists);
177 		fields_a[perf_evsel__group_idx(evsel)] = get_field(pair);
178 	}
179 
180 	list_for_each_entry(pair, &b->pairs.head, pairs.node) {
181 		evsel = hists_to_evsel(pair->hists);
182 		fields_b[perf_evsel__group_idx(evsel)] = get_field(pair);
183 	}
184 
185 	for (i = 1; i < nr_members; i++) {
186 		ret = field_cmp(fields_a[i], fields_b[i]);
187 		if (ret)
188 			break;
189 	}
190 
191 out:
192 	free(fields_a);
193 	free(fields_b);
194 
195 	return ret;
196 }
197 
198 static int __hpp__sort_acc(struct hist_entry *a, struct hist_entry *b,
199 			   hpp_field_fn get_field)
200 {
201 	s64 ret = 0;
202 
203 	if (symbol_conf.cumulate_callchain) {
204 		/*
205 		 * Put caller above callee when they have equal period.
206 		 */
207 		ret = field_cmp(get_field(a), get_field(b));
208 		if (ret)
209 			return ret;
210 
211 		if (a->thread != b->thread || !hist_entry__has_callchains(a) || !symbol_conf.use_callchain)
212 			return 0;
213 
214 		ret = b->callchain->max_depth - a->callchain->max_depth;
215 		if (callchain_param.order == ORDER_CALLER)
216 			ret = -ret;
217 	}
218 	return ret;
219 }
220 
221 static int hpp__width_fn(struct perf_hpp_fmt *fmt,
222 			 struct perf_hpp *hpp __maybe_unused,
223 			 struct hists *hists)
224 {
225 	int len = fmt->user_len ?: fmt->len;
226 	struct perf_evsel *evsel = hists_to_evsel(hists);
227 
228 	if (symbol_conf.event_group)
229 		len = max(len, evsel->nr_members * fmt->len);
230 
231 	if (len < (int)strlen(fmt->name))
232 		len = strlen(fmt->name);
233 
234 	return len;
235 }
236 
237 static int hpp__header_fn(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
238 			  struct hists *hists, int line __maybe_unused,
239 			  int *span __maybe_unused)
240 {
241 	int len = hpp__width_fn(fmt, hpp, hists);
242 	return scnprintf(hpp->buf, hpp->size, "%*s", len, fmt->name);
243 }
244 
245 int hpp_color_scnprintf(struct perf_hpp *hpp, const char *fmt, ...)
246 {
247 	va_list args;
248 	ssize_t ssize = hpp->size;
249 	double percent;
250 	int ret, len;
251 
252 	va_start(args, fmt);
253 	len = va_arg(args, int);
254 	percent = va_arg(args, double);
255 	ret = percent_color_len_snprintf(hpp->buf, hpp->size, fmt, len, percent);
256 	va_end(args);
257 
258 	return (ret >= ssize) ? (ssize - 1) : ret;
259 }
260 
261 static int hpp_entry_scnprintf(struct perf_hpp *hpp, const char *fmt, ...)
262 {
263 	va_list args;
264 	ssize_t ssize = hpp->size;
265 	int ret;
266 
267 	va_start(args, fmt);
268 	ret = vsnprintf(hpp->buf, hpp->size, fmt, args);
269 	va_end(args);
270 
271 	return (ret >= ssize) ? (ssize - 1) : ret;
272 }
273 
274 #define __HPP_COLOR_PERCENT_FN(_type, _field)					\
275 static u64 he_get_##_field(struct hist_entry *he)				\
276 {										\
277 	return he->stat._field;							\
278 }										\
279 										\
280 static int hpp__color_##_type(struct perf_hpp_fmt *fmt,				\
281 			      struct perf_hpp *hpp, struct hist_entry *he) 	\
282 {										\
283 	return hpp__fmt(fmt, hpp, he, he_get_##_field, " %*.2f%%",		\
284 			hpp_color_scnprintf, true);				\
285 }
286 
287 #define __HPP_ENTRY_PERCENT_FN(_type, _field)					\
288 static int hpp__entry_##_type(struct perf_hpp_fmt *fmt,				\
289 			      struct perf_hpp *hpp, struct hist_entry *he) 	\
290 {										\
291 	return hpp__fmt(fmt, hpp, he, he_get_##_field, " %*.2f%%",		\
292 			hpp_entry_scnprintf, true);				\
293 }
294 
295 #define __HPP_SORT_FN(_type, _field)						\
296 static int64_t hpp__sort_##_type(struct perf_hpp_fmt *fmt __maybe_unused, 	\
297 				 struct hist_entry *a, struct hist_entry *b) 	\
298 {										\
299 	return __hpp__sort(a, b, he_get_##_field);				\
300 }
301 
302 #define __HPP_COLOR_ACC_PERCENT_FN(_type, _field)				\
303 static u64 he_get_acc_##_field(struct hist_entry *he)				\
304 {										\
305 	return he->stat_acc->_field;						\
306 }										\
307 										\
308 static int hpp__color_##_type(struct perf_hpp_fmt *fmt,				\
309 			      struct perf_hpp *hpp, struct hist_entry *he) 	\
310 {										\
311 	return hpp__fmt_acc(fmt, hpp, he, he_get_acc_##_field, " %*.2f%%", 	\
312 			    hpp_color_scnprintf, true);				\
313 }
314 
315 #define __HPP_ENTRY_ACC_PERCENT_FN(_type, _field)				\
316 static int hpp__entry_##_type(struct perf_hpp_fmt *fmt,				\
317 			      struct perf_hpp *hpp, struct hist_entry *he) 	\
318 {										\
319 	return hpp__fmt_acc(fmt, hpp, he, he_get_acc_##_field, " %*.2f%%",	\
320 			    hpp_entry_scnprintf, true);				\
321 }
322 
323 #define __HPP_SORT_ACC_FN(_type, _field)					\
324 static int64_t hpp__sort_##_type(struct perf_hpp_fmt *fmt __maybe_unused, 	\
325 				 struct hist_entry *a, struct hist_entry *b) 	\
326 {										\
327 	return __hpp__sort_acc(a, b, he_get_acc_##_field);			\
328 }
329 
330 #define __HPP_ENTRY_RAW_FN(_type, _field)					\
331 static u64 he_get_raw_##_field(struct hist_entry *he)				\
332 {										\
333 	return he->stat._field;							\
334 }										\
335 										\
336 static int hpp__entry_##_type(struct perf_hpp_fmt *fmt,				\
337 			      struct perf_hpp *hpp, struct hist_entry *he) 	\
338 {										\
339 	return hpp__fmt(fmt, hpp, he, he_get_raw_##_field, " %*"PRIu64, 	\
340 			hpp_entry_scnprintf, false);				\
341 }
342 
343 #define __HPP_SORT_RAW_FN(_type, _field)					\
344 static int64_t hpp__sort_##_type(struct perf_hpp_fmt *fmt __maybe_unused, 	\
345 				 struct hist_entry *a, struct hist_entry *b) 	\
346 {										\
347 	return __hpp__sort(a, b, he_get_raw_##_field);				\
348 }
349 
350 
351 #define HPP_PERCENT_FNS(_type, _field)					\
352 __HPP_COLOR_PERCENT_FN(_type, _field)					\
353 __HPP_ENTRY_PERCENT_FN(_type, _field)					\
354 __HPP_SORT_FN(_type, _field)
355 
356 #define HPP_PERCENT_ACC_FNS(_type, _field)				\
357 __HPP_COLOR_ACC_PERCENT_FN(_type, _field)				\
358 __HPP_ENTRY_ACC_PERCENT_FN(_type, _field)				\
359 __HPP_SORT_ACC_FN(_type, _field)
360 
361 #define HPP_RAW_FNS(_type, _field)					\
362 __HPP_ENTRY_RAW_FN(_type, _field)					\
363 __HPP_SORT_RAW_FN(_type, _field)
364 
365 HPP_PERCENT_FNS(overhead, period)
366 HPP_PERCENT_FNS(overhead_sys, period_sys)
367 HPP_PERCENT_FNS(overhead_us, period_us)
368 HPP_PERCENT_FNS(overhead_guest_sys, period_guest_sys)
369 HPP_PERCENT_FNS(overhead_guest_us, period_guest_us)
370 HPP_PERCENT_ACC_FNS(overhead_acc, period)
371 
372 HPP_RAW_FNS(samples, nr_events)
373 HPP_RAW_FNS(period, period)
374 
375 static int64_t hpp__nop_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
376 			    struct hist_entry *a __maybe_unused,
377 			    struct hist_entry *b __maybe_unused)
378 {
379 	return 0;
380 }
381 
382 static bool perf_hpp__is_hpp_entry(struct perf_hpp_fmt *a)
383 {
384 	return a->header == hpp__header_fn;
385 }
386 
387 static bool hpp__equal(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b)
388 {
389 	if (!perf_hpp__is_hpp_entry(a) || !perf_hpp__is_hpp_entry(b))
390 		return false;
391 
392 	return a->idx == b->idx;
393 }
394 
395 #define HPP__COLOR_PRINT_FNS(_name, _fn, _idx)		\
396 	{						\
397 		.name   = _name,			\
398 		.header	= hpp__header_fn,		\
399 		.width	= hpp__width_fn,		\
400 		.color	= hpp__color_ ## _fn,		\
401 		.entry	= hpp__entry_ ## _fn,		\
402 		.cmp	= hpp__nop_cmp,			\
403 		.collapse = hpp__nop_cmp,		\
404 		.sort	= hpp__sort_ ## _fn,		\
405 		.idx	= PERF_HPP__ ## _idx,		\
406 		.equal	= hpp__equal,			\
407 	}
408 
409 #define HPP__COLOR_ACC_PRINT_FNS(_name, _fn, _idx)	\
410 	{						\
411 		.name   = _name,			\
412 		.header	= hpp__header_fn,		\
413 		.width	= hpp__width_fn,		\
414 		.color	= hpp__color_ ## _fn,		\
415 		.entry	= hpp__entry_ ## _fn,		\
416 		.cmp	= hpp__nop_cmp,			\
417 		.collapse = hpp__nop_cmp,		\
418 		.sort	= hpp__sort_ ## _fn,		\
419 		.idx	= PERF_HPP__ ## _idx,		\
420 		.equal	= hpp__equal,			\
421 	}
422 
423 #define HPP__PRINT_FNS(_name, _fn, _idx)		\
424 	{						\
425 		.name   = _name,			\
426 		.header	= hpp__header_fn,		\
427 		.width	= hpp__width_fn,		\
428 		.entry	= hpp__entry_ ## _fn,		\
429 		.cmp	= hpp__nop_cmp,			\
430 		.collapse = hpp__nop_cmp,		\
431 		.sort	= hpp__sort_ ## _fn,		\
432 		.idx	= PERF_HPP__ ## _idx,		\
433 		.equal	= hpp__equal,			\
434 	}
435 
436 struct perf_hpp_fmt perf_hpp__format[] = {
437 	HPP__COLOR_PRINT_FNS("Overhead", overhead, OVERHEAD),
438 	HPP__COLOR_PRINT_FNS("sys", overhead_sys, OVERHEAD_SYS),
439 	HPP__COLOR_PRINT_FNS("usr", overhead_us, OVERHEAD_US),
440 	HPP__COLOR_PRINT_FNS("guest sys", overhead_guest_sys, OVERHEAD_GUEST_SYS),
441 	HPP__COLOR_PRINT_FNS("guest usr", overhead_guest_us, OVERHEAD_GUEST_US),
442 	HPP__COLOR_ACC_PRINT_FNS("Children", overhead_acc, OVERHEAD_ACC),
443 	HPP__PRINT_FNS("Samples", samples, SAMPLES),
444 	HPP__PRINT_FNS("Period", period, PERIOD)
445 };
446 
447 struct perf_hpp_list perf_hpp_list = {
448 	.fields	= LIST_HEAD_INIT(perf_hpp_list.fields),
449 	.sorts	= LIST_HEAD_INIT(perf_hpp_list.sorts),
450 	.nr_header_lines = 1,
451 };
452 
453 #undef HPP__COLOR_PRINT_FNS
454 #undef HPP__COLOR_ACC_PRINT_FNS
455 #undef HPP__PRINT_FNS
456 
457 #undef HPP_PERCENT_FNS
458 #undef HPP_PERCENT_ACC_FNS
459 #undef HPP_RAW_FNS
460 
461 #undef __HPP_HEADER_FN
462 #undef __HPP_WIDTH_FN
463 #undef __HPP_COLOR_PERCENT_FN
464 #undef __HPP_ENTRY_PERCENT_FN
465 #undef __HPP_COLOR_ACC_PERCENT_FN
466 #undef __HPP_ENTRY_ACC_PERCENT_FN
467 #undef __HPP_ENTRY_RAW_FN
468 #undef __HPP_SORT_FN
469 #undef __HPP_SORT_ACC_FN
470 #undef __HPP_SORT_RAW_FN
471 
472 
473 void perf_hpp__init(void)
474 {
475 	int i;
476 
477 	for (i = 0; i < PERF_HPP__MAX_INDEX; i++) {
478 		struct perf_hpp_fmt *fmt = &perf_hpp__format[i];
479 
480 		INIT_LIST_HEAD(&fmt->list);
481 
482 		/* sort_list may be linked by setup_sorting() */
483 		if (fmt->sort_list.next == NULL)
484 			INIT_LIST_HEAD(&fmt->sort_list);
485 	}
486 
487 	/*
488 	 * If user specified field order, no need to setup default fields.
489 	 */
490 	if (is_strict_order(field_order))
491 		return;
492 
493 	if (symbol_conf.cumulate_callchain) {
494 		hpp_dimension__add_output(PERF_HPP__OVERHEAD_ACC);
495 		perf_hpp__format[PERF_HPP__OVERHEAD].name = "Self";
496 	}
497 
498 	hpp_dimension__add_output(PERF_HPP__OVERHEAD);
499 
500 	if (symbol_conf.show_cpu_utilization) {
501 		hpp_dimension__add_output(PERF_HPP__OVERHEAD_SYS);
502 		hpp_dimension__add_output(PERF_HPP__OVERHEAD_US);
503 
504 		if (perf_guest) {
505 			hpp_dimension__add_output(PERF_HPP__OVERHEAD_GUEST_SYS);
506 			hpp_dimension__add_output(PERF_HPP__OVERHEAD_GUEST_US);
507 		}
508 	}
509 
510 	if (symbol_conf.show_nr_samples)
511 		hpp_dimension__add_output(PERF_HPP__SAMPLES);
512 
513 	if (symbol_conf.show_total_period)
514 		hpp_dimension__add_output(PERF_HPP__PERIOD);
515 }
516 
517 void perf_hpp_list__column_register(struct perf_hpp_list *list,
518 				    struct perf_hpp_fmt *format)
519 {
520 	list_add_tail(&format->list, &list->fields);
521 }
522 
523 void perf_hpp_list__register_sort_field(struct perf_hpp_list *list,
524 					struct perf_hpp_fmt *format)
525 {
526 	list_add_tail(&format->sort_list, &list->sorts);
527 }
528 
529 void perf_hpp_list__prepend_sort_field(struct perf_hpp_list *list,
530 				       struct perf_hpp_fmt *format)
531 {
532 	list_add(&format->sort_list, &list->sorts);
533 }
534 
535 void perf_hpp__column_unregister(struct perf_hpp_fmt *format)
536 {
537 	list_del_init(&format->list);
538 }
539 
540 void perf_hpp__cancel_cumulate(void)
541 {
542 	struct perf_hpp_fmt *fmt, *acc, *ovh, *tmp;
543 
544 	if (is_strict_order(field_order))
545 		return;
546 
547 	ovh = &perf_hpp__format[PERF_HPP__OVERHEAD];
548 	acc = &perf_hpp__format[PERF_HPP__OVERHEAD_ACC];
549 
550 	perf_hpp_list__for_each_format_safe(&perf_hpp_list, fmt, tmp) {
551 		if (acc->equal(acc, fmt)) {
552 			perf_hpp__column_unregister(fmt);
553 			continue;
554 		}
555 
556 		if (ovh->equal(ovh, fmt))
557 			fmt->name = "Overhead";
558 	}
559 }
560 
561 static bool fmt_equal(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b)
562 {
563 	return a->equal && a->equal(a, b);
564 }
565 
566 void perf_hpp__setup_output_field(struct perf_hpp_list *list)
567 {
568 	struct perf_hpp_fmt *fmt;
569 
570 	/* append sort keys to output field */
571 	perf_hpp_list__for_each_sort_list(list, fmt) {
572 		struct perf_hpp_fmt *pos;
573 
574 		/* skip sort-only fields ("sort_compute" in perf diff) */
575 		if (!fmt->entry && !fmt->color)
576 			continue;
577 
578 		perf_hpp_list__for_each_format(list, pos) {
579 			if (fmt_equal(fmt, pos))
580 				goto next;
581 		}
582 
583 		perf_hpp__column_register(fmt);
584 next:
585 		continue;
586 	}
587 }
588 
589 void perf_hpp__append_sort_keys(struct perf_hpp_list *list)
590 {
591 	struct perf_hpp_fmt *fmt;
592 
593 	/* append output fields to sort keys */
594 	perf_hpp_list__for_each_format(list, fmt) {
595 		struct perf_hpp_fmt *pos;
596 
597 		perf_hpp_list__for_each_sort_list(list, pos) {
598 			if (fmt_equal(fmt, pos))
599 				goto next;
600 		}
601 
602 		perf_hpp__register_sort_field(fmt);
603 next:
604 		continue;
605 	}
606 }
607 
608 
609 static void fmt_free(struct perf_hpp_fmt *fmt)
610 {
611 	/*
612 	 * At this point fmt should be completely
613 	 * unhooked, if not it's a bug.
614 	 */
615 	BUG_ON(!list_empty(&fmt->list));
616 	BUG_ON(!list_empty(&fmt->sort_list));
617 
618 	if (fmt->free)
619 		fmt->free(fmt);
620 }
621 
622 void perf_hpp__reset_output_field(struct perf_hpp_list *list)
623 {
624 	struct perf_hpp_fmt *fmt, *tmp;
625 
626 	/* reset output fields */
627 	perf_hpp_list__for_each_format_safe(list, fmt, tmp) {
628 		list_del_init(&fmt->list);
629 		list_del_init(&fmt->sort_list);
630 		fmt_free(fmt);
631 	}
632 
633 	/* reset sort keys */
634 	perf_hpp_list__for_each_sort_list_safe(list, fmt, tmp) {
635 		list_del_init(&fmt->list);
636 		list_del_init(&fmt->sort_list);
637 		fmt_free(fmt);
638 	}
639 }
640 
641 /*
642  * See hists__fprintf to match the column widths
643  */
644 unsigned int hists__sort_list_width(struct hists *hists)
645 {
646 	struct perf_hpp_fmt *fmt;
647 	int ret = 0;
648 	bool first = true;
649 	struct perf_hpp dummy_hpp;
650 
651 	hists__for_each_format(hists, fmt) {
652 		if (perf_hpp__should_skip(fmt, hists))
653 			continue;
654 
655 		if (first)
656 			first = false;
657 		else
658 			ret += 2;
659 
660 		ret += fmt->width(fmt, &dummy_hpp, hists);
661 	}
662 
663 	if (verbose > 0 && hists__has(hists, sym)) /* Addr + origin */
664 		ret += 3 + BITS_PER_LONG / 4;
665 
666 	return ret;
667 }
668 
669 unsigned int hists__overhead_width(struct hists *hists)
670 {
671 	struct perf_hpp_fmt *fmt;
672 	int ret = 0;
673 	bool first = true;
674 	struct perf_hpp dummy_hpp;
675 
676 	hists__for_each_format(hists, fmt) {
677 		if (perf_hpp__is_sort_entry(fmt) || perf_hpp__is_dynamic_entry(fmt))
678 			break;
679 
680 		if (first)
681 			first = false;
682 		else
683 			ret += 2;
684 
685 		ret += fmt->width(fmt, &dummy_hpp, hists);
686 	}
687 
688 	return ret;
689 }
690 
691 void perf_hpp__reset_width(struct perf_hpp_fmt *fmt, struct hists *hists)
692 {
693 	if (perf_hpp__is_sort_entry(fmt))
694 		return perf_hpp__reset_sort_width(fmt, hists);
695 
696 	if (perf_hpp__is_dynamic_entry(fmt))
697 		return;
698 
699 	BUG_ON(fmt->idx >= PERF_HPP__MAX_INDEX);
700 
701 	switch (fmt->idx) {
702 	case PERF_HPP__OVERHEAD:
703 	case PERF_HPP__OVERHEAD_SYS:
704 	case PERF_HPP__OVERHEAD_US:
705 	case PERF_HPP__OVERHEAD_ACC:
706 		fmt->len = 8;
707 		break;
708 
709 	case PERF_HPP__OVERHEAD_GUEST_SYS:
710 	case PERF_HPP__OVERHEAD_GUEST_US:
711 		fmt->len = 9;
712 		break;
713 
714 	case PERF_HPP__SAMPLES:
715 	case PERF_HPP__PERIOD:
716 		fmt->len = 12;
717 		break;
718 
719 	default:
720 		break;
721 	}
722 }
723 
724 void hists__reset_column_width(struct hists *hists)
725 {
726 	struct perf_hpp_fmt *fmt;
727 	struct perf_hpp_list_node *node;
728 
729 	hists__for_each_format(hists, fmt)
730 		perf_hpp__reset_width(fmt, hists);
731 
732 	/* hierarchy entries have their own hpp list */
733 	list_for_each_entry(node, &hists->hpp_formats, list) {
734 		perf_hpp_list__for_each_format(&node->hpp, fmt)
735 			perf_hpp__reset_width(fmt, hists);
736 	}
737 }
738 
739 void perf_hpp__set_user_width(const char *width_list_str)
740 {
741 	struct perf_hpp_fmt *fmt;
742 	const char *ptr = width_list_str;
743 
744 	perf_hpp_list__for_each_format(&perf_hpp_list, fmt) {
745 		char *p;
746 
747 		int len = strtol(ptr, &p, 10);
748 		fmt->user_len = len;
749 
750 		if (*p == ',')
751 			ptr = p + 1;
752 		else
753 			break;
754 	}
755 }
756 
757 static int add_hierarchy_fmt(struct hists *hists, struct perf_hpp_fmt *fmt)
758 {
759 	struct perf_hpp_list_node *node = NULL;
760 	struct perf_hpp_fmt *fmt_copy;
761 	bool found = false;
762 	bool skip = perf_hpp__should_skip(fmt, hists);
763 
764 	list_for_each_entry(node, &hists->hpp_formats, list) {
765 		if (node->level == fmt->level) {
766 			found = true;
767 			break;
768 		}
769 	}
770 
771 	if (!found) {
772 		node = malloc(sizeof(*node));
773 		if (node == NULL)
774 			return -1;
775 
776 		node->skip = skip;
777 		node->level = fmt->level;
778 		perf_hpp_list__init(&node->hpp);
779 
780 		hists->nr_hpp_node++;
781 		list_add_tail(&node->list, &hists->hpp_formats);
782 	}
783 
784 	fmt_copy = perf_hpp_fmt__dup(fmt);
785 	if (fmt_copy == NULL)
786 		return -1;
787 
788 	if (!skip)
789 		node->skip = false;
790 
791 	list_add_tail(&fmt_copy->list, &node->hpp.fields);
792 	list_add_tail(&fmt_copy->sort_list, &node->hpp.sorts);
793 
794 	return 0;
795 }
796 
797 int perf_hpp__setup_hists_formats(struct perf_hpp_list *list,
798 				  struct perf_evlist *evlist)
799 {
800 	struct perf_evsel *evsel;
801 	struct perf_hpp_fmt *fmt;
802 	struct hists *hists;
803 	int ret;
804 
805 	if (!symbol_conf.report_hierarchy)
806 		return 0;
807 
808 	evlist__for_each_entry(evlist, evsel) {
809 		hists = evsel__hists(evsel);
810 
811 		perf_hpp_list__for_each_sort_list(list, fmt) {
812 			if (perf_hpp__is_dynamic_entry(fmt) &&
813 			    !perf_hpp__defined_dynamic_entry(fmt, hists))
814 				continue;
815 
816 			ret = add_hierarchy_fmt(hists, fmt);
817 			if (ret < 0)
818 				return ret;
819 		}
820 	}
821 
822 	return 0;
823 }
824