tools/perf/ui/hist.c

   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 }