xref: /linux/tools/perf/ui/hist.c (revision 36ec807b627b4c0a0a382f0ae48eac7187d14b2b)
1 // SPDX-License-Identifier: GPL-2.0
2 #include <inttypes.h>
3 #include <math.h>
4 #include <stdlib.h>
5 #include <string.h>
6 #include <linux/compiler.h>
7 
8 #include "../util/callchain.h"
9 #include "../util/debug.h"
10 #include "../util/hist.h"
11 #include "../util/sort.h"
12 #include "../util/evsel.h"
13 #include "../util/evlist.h"
14 #include "../util/thread.h"
15 #include "../util/util.h"
16 
17 /* hist period print (hpp) functions */
18 
19 #define hpp__call_print_fn(hpp, fn, fmt, ...)			\
20 ({								\
21 	int __ret = fn(hpp, fmt, ##__VA_ARGS__);		\
22 	advance_hpp(hpp, __ret);				\
23 	__ret;							\
24 })
25 
26 static int __hpp__fmt_print(struct perf_hpp *hpp, struct hists *hists, u64 val,
27 			    int nr_samples, const char *fmt, int len,
28 			    hpp_snprint_fn print_fn, enum perf_hpp_fmt_type fmtype)
29 {
30 	if (fmtype == PERF_HPP_FMT_TYPE__PERCENT) {
31 		double percent = 0.0;
32 		u64 total = hists__total_period(hists);
33 
34 		if (total)
35 			percent = 100.0 * val / total;
36 
37 		return hpp__call_print_fn(hpp, print_fn, fmt, len, percent);
38 	}
39 
40 	if (fmtype == PERF_HPP_FMT_TYPE__AVERAGE) {
41 		double avg = nr_samples ? (1.0 * val / nr_samples) : 0;
42 
43 		return hpp__call_print_fn(hpp, print_fn, fmt, len, avg);
44 	}
45 
46 	return hpp__call_print_fn(hpp, print_fn, fmt, len, val);
47 }
48 
49 struct hpp_fmt_value {
50 	struct hists *hists;
51 	u64 val;
52 	int samples;
53 };
54 
55 static int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
56 		      hpp_field_fn get_field, const char *fmt, int len,
57 		      hpp_snprint_fn print_fn, enum perf_hpp_fmt_type fmtype)
58 {
59 	int ret = 0;
60 	struct hists *hists = he->hists;
61 	struct evsel *evsel = hists_to_evsel(hists);
62 	struct evsel *pos;
63 	char *buf = hpp->buf;
64 	size_t size = hpp->size;
65 	int i, nr_members = 1;
66 	struct hpp_fmt_value *values;
67 
68 	if (evsel__is_group_event(evsel))
69 		nr_members = evsel->core.nr_members;
70 
71 	values = calloc(nr_members, sizeof(*values));
72 	if (values == NULL)
73 		return 0;
74 
75 	i = 0;
76 	for_each_group_evsel(pos, evsel)
77 		values[i++].hists = evsel__hists(pos);
78 
79 	values[0].val = get_field(he);
80 	values[0].samples = he->stat.nr_events;
81 
82 	if (evsel__is_group_event(evsel)) {
83 		struct hist_entry *pair;
84 
85 		list_for_each_entry(pair, &he->pairs.head, pairs.node) {
86 			for (i = 0; i < nr_members; i++) {
87 				if (values[i].hists != pair->hists)
88 					continue;
89 
90 				values[i].val = get_field(pair);
91 				values[i].samples = pair->stat.nr_events;
92 				break;
93 			}
94 		}
95 	}
96 
97 	for (i = 0; i < nr_members; i++) {
98 		if (symbol_conf.skip_empty &&
99 		    values[i].hists->stats.nr_samples == 0)
100 			continue;
101 
102 		ret += __hpp__fmt_print(hpp, values[i].hists, values[i].val,
103 					values[i].samples, fmt, len,
104 					print_fn, fmtype);
105 	}
106 
107 	free(values);
108 
109 	/*
110 	 * Restore original buf and size as it's where caller expects
111 	 * the result will be saved.
112 	 */
113 	hpp->buf = buf;
114 	hpp->size = size;
115 
116 	return ret;
117 }
118 
119 int hpp__fmt(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
120 	     struct hist_entry *he, hpp_field_fn get_field,
121 	     const char *fmtstr, hpp_snprint_fn print_fn,
122 	     enum perf_hpp_fmt_type fmtype)
123 {
124 	int len = fmt->user_len ?: fmt->len;
125 
126 	if (symbol_conf.field_sep) {
127 		return __hpp__fmt(hpp, he, get_field, fmtstr, 1,
128 				  print_fn, fmtype);
129 	}
130 
131 	if (fmtype == PERF_HPP_FMT_TYPE__PERCENT)
132 		len -= 2; /* 2 for a space and a % sign */
133 	else
134 		len -= 1;
135 
136 	return  __hpp__fmt(hpp, he, get_field, fmtstr, len, print_fn, fmtype);
137 }
138 
139 int hpp__fmt_acc(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
140 		 struct hist_entry *he, hpp_field_fn get_field,
141 		 const char *fmtstr, hpp_snprint_fn print_fn,
142 		 enum perf_hpp_fmt_type fmtype)
143 {
144 	if (!symbol_conf.cumulate_callchain) {
145 		int len = fmt->user_len ?: fmt->len;
146 		return snprintf(hpp->buf, hpp->size, " %*s", len - 1, "N/A");
147 	}
148 
149 	return hpp__fmt(fmt, hpp, he, get_field, fmtstr, print_fn, fmtype);
150 }
151 
152 static int field_cmp(u64 field_a, u64 field_b)
153 {
154 	if (field_a > field_b)
155 		return 1;
156 	if (field_a < field_b)
157 		return -1;
158 	return 0;
159 }
160 
161 static int hist_entry__new_pair(struct hist_entry *a, struct hist_entry *b,
162 				hpp_field_fn get_field, int nr_members,
163 				u64 **fields_a, u64 **fields_b)
164 {
165 	u64 *fa = calloc(nr_members, sizeof(*fa)),
166 	    *fb = calloc(nr_members, sizeof(*fb));
167 	struct hist_entry *pair;
168 
169 	if (!fa || !fb)
170 		goto out_free;
171 
172 	list_for_each_entry(pair, &a->pairs.head, pairs.node) {
173 		struct evsel *evsel = hists_to_evsel(pair->hists);
174 		fa[evsel__group_idx(evsel)] = get_field(pair);
175 	}
176 
177 	list_for_each_entry(pair, &b->pairs.head, pairs.node) {
178 		struct evsel *evsel = hists_to_evsel(pair->hists);
179 		fb[evsel__group_idx(evsel)] = get_field(pair);
180 	}
181 
182 	*fields_a = fa;
183 	*fields_b = fb;
184 	return 0;
185 out_free:
186 	free(fa);
187 	free(fb);
188 	*fields_a = *fields_b = NULL;
189 	return -1;
190 }
191 
192 static int __hpp__group_sort_idx(struct hist_entry *a, struct hist_entry *b,
193 				 hpp_field_fn get_field, int idx)
194 {
195 	struct evsel *evsel = hists_to_evsel(a->hists);
196 	u64 *fields_a, *fields_b;
197 	int cmp, nr_members, ret, i;
198 
199 	cmp = field_cmp(get_field(a), get_field(b));
200 	if (!evsel__is_group_event(evsel))
201 		return cmp;
202 
203 	nr_members = evsel->core.nr_members;
204 	if (idx < 1 || idx >= nr_members)
205 		return cmp;
206 
207 	ret = hist_entry__new_pair(a, b, get_field, nr_members, &fields_a, &fields_b);
208 	if (ret) {
209 		ret = cmp;
210 		goto out;
211 	}
212 
213 	ret = field_cmp(fields_a[idx], fields_b[idx]);
214 	if (ret)
215 		goto out;
216 
217 	for (i = 1; i < nr_members; i++) {
218 		if (i != idx) {
219 			ret = field_cmp(fields_a[i], fields_b[i]);
220 			if (ret)
221 				goto out;
222 		}
223 	}
224 
225 out:
226 	free(fields_a);
227 	free(fields_b);
228 
229 	return ret;
230 }
231 
232 static int __hpp__sort(struct hist_entry *a, struct hist_entry *b,
233 		       hpp_field_fn get_field)
234 {
235 	s64 ret;
236 	int i, nr_members;
237 	struct evsel *evsel;
238 	u64 *fields_a, *fields_b;
239 
240 	if (symbol_conf.group_sort_idx && symbol_conf.event_group) {
241 		return __hpp__group_sort_idx(a, b, get_field,
242 					     symbol_conf.group_sort_idx);
243 	}
244 
245 	ret = field_cmp(get_field(a), get_field(b));
246 	if (ret || !symbol_conf.event_group)
247 		return ret;
248 
249 	evsel = hists_to_evsel(a->hists);
250 	if (!evsel__is_group_event(evsel))
251 		return ret;
252 
253 	nr_members = evsel->core.nr_members;
254 	i = hist_entry__new_pair(a, b, get_field, nr_members, &fields_a, &fields_b);
255 	if (i)
256 		goto out;
257 
258 	for (i = 1; i < nr_members; i++) {
259 		ret = field_cmp(fields_a[i], fields_b[i]);
260 		if (ret)
261 			break;
262 	}
263 
264 out:
265 	free(fields_a);
266 	free(fields_b);
267 
268 	return ret;
269 }
270 
271 static int __hpp__sort_acc(struct hist_entry *a, struct hist_entry *b,
272 			   hpp_field_fn get_field)
273 {
274 	s64 ret = 0;
275 
276 	if (symbol_conf.cumulate_callchain) {
277 		/*
278 		 * Put caller above callee when they have equal period.
279 		 */
280 		ret = field_cmp(get_field(a), get_field(b));
281 		if (ret)
282 			return ret;
283 
284 		if ((a->thread == NULL ? NULL : RC_CHK_ACCESS(a->thread)) !=
285 		    (b->thread == NULL ? NULL : RC_CHK_ACCESS(b->thread)) ||
286 		    !hist_entry__has_callchains(a) || !symbol_conf.use_callchain)
287 			return 0;
288 
289 		ret = b->callchain->max_depth - a->callchain->max_depth;
290 		if (callchain_param.order == ORDER_CALLER)
291 			ret = -ret;
292 	}
293 	return ret;
294 }
295 
296 static int hpp__width_fn(struct perf_hpp_fmt *fmt,
297 			 struct perf_hpp *hpp __maybe_unused,
298 			 struct hists *hists)
299 {
300 	int len = fmt->user_len ?: fmt->len;
301 	struct evsel *evsel = hists_to_evsel(hists);
302 
303 	if (symbol_conf.event_group) {
304 		int nr = 0;
305 		struct evsel *pos;
306 
307 		for_each_group_evsel(pos, evsel) {
308 			if (!symbol_conf.skip_empty ||
309 			    evsel__hists(pos)->stats.nr_samples)
310 				nr++;
311 		}
312 
313 		len = max(len, nr * fmt->len);
314 	}
315 
316 	if (len < (int)strlen(fmt->name))
317 		len = strlen(fmt->name);
318 
319 	return len;
320 }
321 
322 static int hpp__header_fn(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
323 			  struct hists *hists, int line __maybe_unused,
324 			  int *span __maybe_unused)
325 {
326 	int len = hpp__width_fn(fmt, hpp, hists);
327 	return scnprintf(hpp->buf, hpp->size, "%*s", len, fmt->name);
328 }
329 
330 int hpp_color_scnprintf(struct perf_hpp *hpp, const char *fmt, ...)
331 {
332 	va_list args;
333 	ssize_t ssize = hpp->size;
334 	double percent;
335 	int ret, len;
336 
337 	va_start(args, fmt);
338 	len = va_arg(args, int);
339 	percent = va_arg(args, double);
340 	ret = percent_color_len_snprintf(hpp->buf, hpp->size, fmt, len, percent);
341 	va_end(args);
342 
343 	return (ret >= ssize) ? (ssize - 1) : ret;
344 }
345 
346 static int hpp_entry_scnprintf(struct perf_hpp *hpp, const char *fmt, ...)
347 {
348 	va_list args;
349 	ssize_t ssize = hpp->size;
350 	int ret;
351 
352 	va_start(args, fmt);
353 	ret = vsnprintf(hpp->buf, hpp->size, fmt, args);
354 	va_end(args);
355 
356 	return (ret >= ssize) ? (ssize - 1) : ret;
357 }
358 
359 #define __HPP_COLOR_PERCENT_FN(_type, _field)					\
360 static u64 he_get_##_field(struct hist_entry *he)				\
361 {										\
362 	return he->stat._field;							\
363 }										\
364 										\
365 static int hpp__color_##_type(struct perf_hpp_fmt *fmt,				\
366 			      struct perf_hpp *hpp, struct hist_entry *he) 	\
367 {										\
368 	return hpp__fmt(fmt, hpp, he, he_get_##_field, " %*.2f%%",		\
369 			hpp_color_scnprintf, PERF_HPP_FMT_TYPE__PERCENT);	\
370 }
371 
372 #define __HPP_ENTRY_PERCENT_FN(_type, _field)					\
373 static int hpp__entry_##_type(struct perf_hpp_fmt *fmt,				\
374 			      struct perf_hpp *hpp, struct hist_entry *he) 	\
375 {										\
376 	return hpp__fmt(fmt, hpp, he, he_get_##_field, " %*.2f%%",		\
377 			hpp_entry_scnprintf, PERF_HPP_FMT_TYPE__PERCENT);	\
378 }
379 
380 #define __HPP_SORT_FN(_type, _field)						\
381 static int64_t hpp__sort_##_type(struct perf_hpp_fmt *fmt __maybe_unused, 	\
382 				 struct hist_entry *a, struct hist_entry *b) 	\
383 {										\
384 	return __hpp__sort(a, b, he_get_##_field);				\
385 }
386 
387 #define __HPP_COLOR_ACC_PERCENT_FN(_type, _field)				\
388 static u64 he_get_acc_##_field(struct hist_entry *he)				\
389 {										\
390 	return he->stat_acc->_field;						\
391 }										\
392 										\
393 static int hpp__color_##_type(struct perf_hpp_fmt *fmt,				\
394 			      struct perf_hpp *hpp, struct hist_entry *he) 	\
395 {										\
396 	return hpp__fmt_acc(fmt, hpp, he, he_get_acc_##_field, " %*.2f%%", 	\
397 			    hpp_color_scnprintf, PERF_HPP_FMT_TYPE__PERCENT);	\
398 }
399 
400 #define __HPP_ENTRY_ACC_PERCENT_FN(_type, _field)				\
401 static int hpp__entry_##_type(struct perf_hpp_fmt *fmt,				\
402 			      struct perf_hpp *hpp, struct hist_entry *he) 	\
403 {										\
404 	return hpp__fmt_acc(fmt, hpp, he, he_get_acc_##_field, " %*.2f%%",	\
405 			    hpp_entry_scnprintf, PERF_HPP_FMT_TYPE__PERCENT);	\
406 }
407 
408 #define __HPP_SORT_ACC_FN(_type, _field)					\
409 static int64_t hpp__sort_##_type(struct perf_hpp_fmt *fmt __maybe_unused, 	\
410 				 struct hist_entry *a, struct hist_entry *b) 	\
411 {										\
412 	return __hpp__sort_acc(a, b, he_get_acc_##_field);			\
413 }
414 
415 #define __HPP_ENTRY_RAW_FN(_type, _field)					\
416 static u64 he_get_raw_##_field(struct hist_entry *he)				\
417 {										\
418 	return he->stat._field;							\
419 }										\
420 										\
421 static int hpp__entry_##_type(struct perf_hpp_fmt *fmt,				\
422 			      struct perf_hpp *hpp, struct hist_entry *he) 	\
423 {										\
424 	return hpp__fmt(fmt, hpp, he, he_get_raw_##_field, " %*"PRIu64, 	\
425 			hpp_entry_scnprintf, PERF_HPP_FMT_TYPE__RAW);		\
426 }
427 
428 #define __HPP_SORT_RAW_FN(_type, _field)					\
429 static int64_t hpp__sort_##_type(struct perf_hpp_fmt *fmt __maybe_unused, 	\
430 				 struct hist_entry *a, struct hist_entry *b) 	\
431 {										\
432 	return __hpp__sort(a, b, he_get_raw_##_field);				\
433 }
434 
435 #define __HPP_ENTRY_AVERAGE_FN(_type, _field)					\
436 static u64 he_get_##_field(struct hist_entry *he)				\
437 {										\
438 	return he->stat._field;							\
439 }										\
440 										\
441 static int hpp__entry_##_type(struct perf_hpp_fmt *fmt,				\
442 			      struct perf_hpp *hpp, struct hist_entry *he) 	\
443 {										\
444 	return hpp__fmt(fmt, hpp, he, he_get_##_field, " %*.1f",		\
445 			hpp_entry_scnprintf, PERF_HPP_FMT_TYPE__AVERAGE);	\
446 }
447 
448 #define __HPP_SORT_AVERAGE_FN(_type, _field)					\
449 static int64_t hpp__sort_##_type(struct perf_hpp_fmt *fmt __maybe_unused, 	\
450 				 struct hist_entry *a, struct hist_entry *b) 	\
451 {										\
452 	return __hpp__sort(a, b, he_get_##_field);				\
453 }
454 
455 
456 #define HPP_PERCENT_FNS(_type, _field)					\
457 __HPP_COLOR_PERCENT_FN(_type, _field)					\
458 __HPP_ENTRY_PERCENT_FN(_type, _field)					\
459 __HPP_SORT_FN(_type, _field)
460 
461 #define HPP_PERCENT_ACC_FNS(_type, _field)				\
462 __HPP_COLOR_ACC_PERCENT_FN(_type, _field)				\
463 __HPP_ENTRY_ACC_PERCENT_FN(_type, _field)				\
464 __HPP_SORT_ACC_FN(_type, _field)
465 
466 #define HPP_RAW_FNS(_type, _field)					\
467 __HPP_ENTRY_RAW_FN(_type, _field)					\
468 __HPP_SORT_RAW_FN(_type, _field)
469 
470 #define HPP_AVERAGE_FNS(_type, _field)					\
471 __HPP_ENTRY_AVERAGE_FN(_type, _field)					\
472 __HPP_SORT_AVERAGE_FN(_type, _field)
473 
474 HPP_PERCENT_FNS(overhead, period)
475 HPP_PERCENT_FNS(overhead_sys, period_sys)
476 HPP_PERCENT_FNS(overhead_us, period_us)
477 HPP_PERCENT_FNS(overhead_guest_sys, period_guest_sys)
478 HPP_PERCENT_FNS(overhead_guest_us, period_guest_us)
479 HPP_PERCENT_ACC_FNS(overhead_acc, period)
480 
481 HPP_RAW_FNS(samples, nr_events)
482 HPP_RAW_FNS(period, period)
483 
484 HPP_AVERAGE_FNS(weight1, weight1)
485 HPP_AVERAGE_FNS(weight2, weight2)
486 HPP_AVERAGE_FNS(weight3, weight3)
487 
488 static int64_t hpp__nop_cmp(struct perf_hpp_fmt *fmt __maybe_unused,
489 			    struct hist_entry *a __maybe_unused,
490 			    struct hist_entry *b __maybe_unused)
491 {
492 	return 0;
493 }
494 
495 static bool perf_hpp__is_hpp_entry(struct perf_hpp_fmt *a)
496 {
497 	return a->header == hpp__header_fn;
498 }
499 
500 static bool hpp__equal(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b)
501 {
502 	if (!perf_hpp__is_hpp_entry(a) || !perf_hpp__is_hpp_entry(b))
503 		return false;
504 
505 	return a->idx == b->idx;
506 }
507 
508 #define HPP__COLOR_PRINT_FNS(_name, _fn, _idx)		\
509 	{						\
510 		.name   = _name,			\
511 		.header	= hpp__header_fn,		\
512 		.width	= hpp__width_fn,		\
513 		.color	= hpp__color_ ## _fn,		\
514 		.entry	= hpp__entry_ ## _fn,		\
515 		.cmp	= hpp__nop_cmp,			\
516 		.collapse = hpp__nop_cmp,		\
517 		.sort	= hpp__sort_ ## _fn,		\
518 		.idx	= PERF_HPP__ ## _idx,		\
519 		.equal	= hpp__equal,			\
520 	}
521 
522 #define HPP__COLOR_ACC_PRINT_FNS(_name, _fn, _idx)	\
523 	{						\
524 		.name   = _name,			\
525 		.header	= hpp__header_fn,		\
526 		.width	= hpp__width_fn,		\
527 		.color	= hpp__color_ ## _fn,		\
528 		.entry	= hpp__entry_ ## _fn,		\
529 		.cmp	= hpp__nop_cmp,			\
530 		.collapse = hpp__nop_cmp,		\
531 		.sort	= hpp__sort_ ## _fn,		\
532 		.idx	= PERF_HPP__ ## _idx,		\
533 		.equal	= hpp__equal,			\
534 	}
535 
536 #define HPP__PRINT_FNS(_name, _fn, _idx)		\
537 	{						\
538 		.name   = _name,			\
539 		.header	= hpp__header_fn,		\
540 		.width	= hpp__width_fn,		\
541 		.entry	= hpp__entry_ ## _fn,		\
542 		.cmp	= hpp__nop_cmp,			\
543 		.collapse = hpp__nop_cmp,		\
544 		.sort	= hpp__sort_ ## _fn,		\
545 		.idx	= PERF_HPP__ ## _idx,		\
546 		.equal	= hpp__equal,			\
547 	}
548 
549 struct perf_hpp_fmt perf_hpp__format[] = {
550 	HPP__COLOR_PRINT_FNS("Overhead", overhead, OVERHEAD),
551 	HPP__COLOR_PRINT_FNS("sys", overhead_sys, OVERHEAD_SYS),
552 	HPP__COLOR_PRINT_FNS("usr", overhead_us, OVERHEAD_US),
553 	HPP__COLOR_PRINT_FNS("guest sys", overhead_guest_sys, OVERHEAD_GUEST_SYS),
554 	HPP__COLOR_PRINT_FNS("guest usr", overhead_guest_us, OVERHEAD_GUEST_US),
555 	HPP__COLOR_ACC_PRINT_FNS("Children", overhead_acc, OVERHEAD_ACC),
556 	HPP__PRINT_FNS("Samples", samples, SAMPLES),
557 	HPP__PRINT_FNS("Period", period, PERIOD),
558 	HPP__PRINT_FNS("Weight1", weight1, WEIGHT1),
559 	HPP__PRINT_FNS("Weight2", weight2, WEIGHT2),
560 	HPP__PRINT_FNS("Weight3", weight3, WEIGHT3),
561 };
562 
563 struct perf_hpp_list perf_hpp_list = {
564 	.fields	= LIST_HEAD_INIT(perf_hpp_list.fields),
565 	.sorts	= LIST_HEAD_INIT(perf_hpp_list.sorts),
566 	.nr_header_lines = 1,
567 };
568 
569 #undef HPP__COLOR_PRINT_FNS
570 #undef HPP__COLOR_ACC_PRINT_FNS
571 #undef HPP__PRINT_FNS
572 
573 #undef HPP_PERCENT_FNS
574 #undef HPP_PERCENT_ACC_FNS
575 #undef HPP_RAW_FNS
576 #undef HPP_AVERAGE_FNS
577 
578 #undef __HPP_HEADER_FN
579 #undef __HPP_WIDTH_FN
580 #undef __HPP_COLOR_PERCENT_FN
581 #undef __HPP_ENTRY_PERCENT_FN
582 #undef __HPP_COLOR_ACC_PERCENT_FN
583 #undef __HPP_ENTRY_ACC_PERCENT_FN
584 #undef __HPP_ENTRY_RAW_FN
585 #undef __HPP_ENTRY_AVERAGE_FN
586 #undef __HPP_SORT_FN
587 #undef __HPP_SORT_ACC_FN
588 #undef __HPP_SORT_RAW_FN
589 #undef __HPP_SORT_AVERAGE_FN
590 
591 static void fmt_free(struct perf_hpp_fmt *fmt)
592 {
593 	/*
594 	 * At this point fmt should be completely
595 	 * unhooked, if not it's a bug.
596 	 */
597 	BUG_ON(!list_empty(&fmt->list));
598 	BUG_ON(!list_empty(&fmt->sort_list));
599 
600 	if (fmt->free)
601 		fmt->free(fmt);
602 }
603 
604 void perf_hpp__init(void)
605 {
606 	int i;
607 
608 	for (i = 0; i < PERF_HPP__MAX_INDEX; i++) {
609 		struct perf_hpp_fmt *fmt = &perf_hpp__format[i];
610 
611 		INIT_LIST_HEAD(&fmt->list);
612 
613 		/* sort_list may be linked by setup_sorting() */
614 		if (fmt->sort_list.next == NULL)
615 			INIT_LIST_HEAD(&fmt->sort_list);
616 	}
617 
618 	/*
619 	 * If user specified field order, no need to setup default fields.
620 	 */
621 	if (is_strict_order(field_order))
622 		return;
623 
624 	if (symbol_conf.cumulate_callchain) {
625 		hpp_dimension__add_output(PERF_HPP__OVERHEAD_ACC);
626 		perf_hpp__format[PERF_HPP__OVERHEAD].name = "Self";
627 	}
628 
629 	hpp_dimension__add_output(PERF_HPP__OVERHEAD);
630 
631 	if (symbol_conf.show_cpu_utilization) {
632 		hpp_dimension__add_output(PERF_HPP__OVERHEAD_SYS);
633 		hpp_dimension__add_output(PERF_HPP__OVERHEAD_US);
634 
635 		if (perf_guest) {
636 			hpp_dimension__add_output(PERF_HPP__OVERHEAD_GUEST_SYS);
637 			hpp_dimension__add_output(PERF_HPP__OVERHEAD_GUEST_US);
638 		}
639 	}
640 
641 	if (symbol_conf.show_nr_samples)
642 		hpp_dimension__add_output(PERF_HPP__SAMPLES);
643 
644 	if (symbol_conf.show_total_period)
645 		hpp_dimension__add_output(PERF_HPP__PERIOD);
646 }
647 
648 void perf_hpp_list__column_register(struct perf_hpp_list *list,
649 				    struct perf_hpp_fmt *format)
650 {
651 	list_add_tail(&format->list, &list->fields);
652 }
653 
654 void perf_hpp_list__register_sort_field(struct perf_hpp_list *list,
655 					struct perf_hpp_fmt *format)
656 {
657 	list_add_tail(&format->sort_list, &list->sorts);
658 }
659 
660 void perf_hpp_list__prepend_sort_field(struct perf_hpp_list *list,
661 				       struct perf_hpp_fmt *format)
662 {
663 	list_add(&format->sort_list, &list->sorts);
664 }
665 
666 static void perf_hpp__column_unregister(struct perf_hpp_fmt *format)
667 {
668 	list_del_init(&format->list);
669 	fmt_free(format);
670 }
671 
672 void perf_hpp__cancel_cumulate(void)
673 {
674 	struct perf_hpp_fmt *fmt, *acc, *ovh, *tmp;
675 
676 	if (is_strict_order(field_order))
677 		return;
678 
679 	ovh = &perf_hpp__format[PERF_HPP__OVERHEAD];
680 	acc = &perf_hpp__format[PERF_HPP__OVERHEAD_ACC];
681 
682 	perf_hpp_list__for_each_format_safe(&perf_hpp_list, fmt, tmp) {
683 		if (acc->equal(acc, fmt)) {
684 			perf_hpp__column_unregister(fmt);
685 			continue;
686 		}
687 
688 		if (ovh->equal(ovh, fmt))
689 			fmt->name = "Overhead";
690 	}
691 }
692 
693 static bool fmt_equal(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b)
694 {
695 	return a->equal && a->equal(a, b);
696 }
697 
698 void perf_hpp__setup_output_field(struct perf_hpp_list *list)
699 {
700 	struct perf_hpp_fmt *fmt;
701 
702 	/* append sort keys to output field */
703 	perf_hpp_list__for_each_sort_list(list, fmt) {
704 		struct perf_hpp_fmt *pos;
705 
706 		/* skip sort-only fields ("sort_compute" in perf diff) */
707 		if (!fmt->entry && !fmt->color)
708 			continue;
709 
710 		perf_hpp_list__for_each_format(list, pos) {
711 			if (fmt_equal(fmt, pos))
712 				goto next;
713 		}
714 
715 		perf_hpp__column_register(fmt);
716 next:
717 		continue;
718 	}
719 }
720 
721 void perf_hpp__append_sort_keys(struct perf_hpp_list *list)
722 {
723 	struct perf_hpp_fmt *fmt;
724 
725 	/* append output fields to sort keys */
726 	perf_hpp_list__for_each_format(list, fmt) {
727 		struct perf_hpp_fmt *pos;
728 
729 		perf_hpp_list__for_each_sort_list(list, pos) {
730 			if (fmt_equal(fmt, pos))
731 				goto next;
732 		}
733 
734 		perf_hpp__register_sort_field(fmt);
735 next:
736 		continue;
737 	}
738 }
739 
740 
741 void perf_hpp__reset_output_field(struct perf_hpp_list *list)
742 {
743 	struct perf_hpp_fmt *fmt, *tmp;
744 
745 	/* reset output fields */
746 	perf_hpp_list__for_each_format_safe(list, fmt, tmp) {
747 		list_del_init(&fmt->list);
748 		list_del_init(&fmt->sort_list);
749 		fmt_free(fmt);
750 	}
751 
752 	/* reset sort keys */
753 	perf_hpp_list__for_each_sort_list_safe(list, fmt, tmp) {
754 		list_del_init(&fmt->list);
755 		list_del_init(&fmt->sort_list);
756 		fmt_free(fmt);
757 	}
758 }
759 
760 /*
761  * See hists__fprintf to match the column widths
762  */
763 unsigned int hists__sort_list_width(struct hists *hists)
764 {
765 	struct perf_hpp_fmt *fmt;
766 	int ret = 0;
767 	bool first = true;
768 	struct perf_hpp dummy_hpp;
769 
770 	hists__for_each_format(hists, fmt) {
771 		if (perf_hpp__should_skip(fmt, hists))
772 			continue;
773 
774 		if (first)
775 			first = false;
776 		else
777 			ret += 2;
778 
779 		ret += fmt->width(fmt, &dummy_hpp, hists);
780 	}
781 
782 	if (verbose > 0 && hists__has(hists, sym)) /* Addr + origin */
783 		ret += 3 + BITS_PER_LONG / 4;
784 
785 	return ret;
786 }
787 
788 unsigned int hists__overhead_width(struct hists *hists)
789 {
790 	struct perf_hpp_fmt *fmt;
791 	int ret = 0;
792 	bool first = true;
793 	struct perf_hpp dummy_hpp;
794 
795 	hists__for_each_format(hists, fmt) {
796 		if (perf_hpp__is_sort_entry(fmt) || perf_hpp__is_dynamic_entry(fmt))
797 			break;
798 
799 		if (first)
800 			first = false;
801 		else
802 			ret += 2;
803 
804 		ret += fmt->width(fmt, &dummy_hpp, hists);
805 	}
806 
807 	return ret;
808 }
809 
810 void perf_hpp__reset_width(struct perf_hpp_fmt *fmt, struct hists *hists)
811 {
812 	if (perf_hpp__is_sort_entry(fmt))
813 		return perf_hpp__reset_sort_width(fmt, hists);
814 
815 	if (perf_hpp__is_dynamic_entry(fmt))
816 		return;
817 
818 	BUG_ON(fmt->idx >= PERF_HPP__MAX_INDEX);
819 
820 	switch (fmt->idx) {
821 	case PERF_HPP__OVERHEAD:
822 	case PERF_HPP__OVERHEAD_SYS:
823 	case PERF_HPP__OVERHEAD_US:
824 	case PERF_HPP__OVERHEAD_ACC:
825 		fmt->len = 8;
826 		break;
827 
828 	case PERF_HPP__OVERHEAD_GUEST_SYS:
829 	case PERF_HPP__OVERHEAD_GUEST_US:
830 		fmt->len = 9;
831 		break;
832 
833 	case PERF_HPP__SAMPLES:
834 	case PERF_HPP__PERIOD:
835 		fmt->len = 12;
836 		break;
837 
838 	case PERF_HPP__WEIGHT1:
839 	case PERF_HPP__WEIGHT2:
840 	case PERF_HPP__WEIGHT3:
841 		fmt->len = 8;
842 		break;
843 
844 	default:
845 		break;
846 	}
847 }
848 
849 void hists__reset_column_width(struct hists *hists)
850 {
851 	struct perf_hpp_fmt *fmt;
852 	struct perf_hpp_list_node *node;
853 
854 	hists__for_each_format(hists, fmt)
855 		perf_hpp__reset_width(fmt, hists);
856 
857 	/* hierarchy entries have their own hpp list */
858 	list_for_each_entry(node, &hists->hpp_formats, list) {
859 		perf_hpp_list__for_each_format(&node->hpp, fmt)
860 			perf_hpp__reset_width(fmt, hists);
861 	}
862 }
863 
864 void perf_hpp__set_user_width(const char *width_list_str)
865 {
866 	struct perf_hpp_fmt *fmt;
867 	const char *ptr = width_list_str;
868 
869 	perf_hpp_list__for_each_format(&perf_hpp_list, fmt) {
870 		char *p;
871 
872 		int len = strtol(ptr, &p, 10);
873 		fmt->user_len = len;
874 
875 		if (*p == ',')
876 			ptr = p + 1;
877 		else
878 			break;
879 	}
880 }
881 
882 static int add_hierarchy_fmt(struct hists *hists, struct perf_hpp_fmt *fmt)
883 {
884 	struct perf_hpp_list_node *node = NULL;
885 	struct perf_hpp_fmt *fmt_copy;
886 	bool found = false;
887 	bool skip = perf_hpp__should_skip(fmt, hists);
888 
889 	list_for_each_entry(node, &hists->hpp_formats, list) {
890 		if (node->level == fmt->level) {
891 			found = true;
892 			break;
893 		}
894 	}
895 
896 	if (!found) {
897 		node = malloc(sizeof(*node));
898 		if (node == NULL)
899 			return -1;
900 
901 		node->skip = skip;
902 		node->level = fmt->level;
903 		perf_hpp_list__init(&node->hpp);
904 
905 		hists->nr_hpp_node++;
906 		list_add_tail(&node->list, &hists->hpp_formats);
907 	}
908 
909 	fmt_copy = perf_hpp_fmt__dup(fmt);
910 	if (fmt_copy == NULL)
911 		return -1;
912 
913 	if (!skip)
914 		node->skip = false;
915 
916 	list_add_tail(&fmt_copy->list, &node->hpp.fields);
917 	list_add_tail(&fmt_copy->sort_list, &node->hpp.sorts);
918 
919 	return 0;
920 }
921 
922 int perf_hpp__setup_hists_formats(struct perf_hpp_list *list,
923 				  struct evlist *evlist)
924 {
925 	struct evsel *evsel;
926 	struct perf_hpp_fmt *fmt;
927 	struct hists *hists;
928 	int ret;
929 
930 	if (!symbol_conf.report_hierarchy)
931 		return 0;
932 
933 	evlist__for_each_entry(evlist, evsel) {
934 		hists = evsel__hists(evsel);
935 
936 		perf_hpp_list__for_each_sort_list(list, fmt) {
937 			if (perf_hpp__is_dynamic_entry(fmt) &&
938 			    !perf_hpp__defined_dynamic_entry(fmt, hists))
939 				continue;
940 
941 			ret = add_hierarchy_fmt(hists, fmt);
942 			if (ret < 0)
943 				return ret;
944 		}
945 	}
946 
947 	return 0;
948 }
949