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TOMOYO Linux Cross Reference
Linux/tools/perf/ui/hist.c

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Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  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 = 0, 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         values[0].hists = evsel__hists(evsel);
 76         values[0].val = get_field(he);
 77         values[0].samples = he->stat.nr_events;
 78 
 79         if (evsel__is_group_event(evsel)) {
 80                 struct hist_entry *pair;
 81 
 82                 for_each_group_member(pos, evsel)
 83                         values[++i].hists = evsel__hists(pos);
 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 

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