tools/perf/util/hist.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __PERF_HIST_H
   3 #define __PERF_HIST_H
   4
   5 #include <linux/rbtree.h>
   6 #include <linux/types.h>
   7 #include <pthread.h>
   8 #include "evsel.h"
   9 #include "color.h"
  10 #include "events_stats.h"
  11
  12 struct hist_entry;
  13 struct hist_entry_ops;
  14 struct addr_location;
  15 struct map_symbol;
  16 struct mem_info;
  17 struct branch_info;
  18 struct branch_stack;
  19 struct block_info;
  20 struct symbol;
  21 struct ui_progress;
  22
  23 enum hist_filter {
  24         HIST_FILTER__DSO,
  25         HIST_FILTER__THREAD,
  26         HIST_FILTER__PARENT,
  27         HIST_FILTER__SYMBOL,
  28         HIST_FILTER__GUEST,
  29         HIST_FILTER__HOST,
  30         HIST_FILTER__SOCKET,
  31         HIST_FILTER__C2C,
  32 };
  33
  34 enum hist_column {
  35         HISTC_SYMBOL,
  36         HISTC_TIME,
  37         HISTC_DSO,
  38         HISTC_THREAD,
  39         HISTC_COMM,
  40         HISTC_CGROUP_ID,
  41         HISTC_CGROUP,
  42         HISTC_PARENT,
  43         HISTC_CPU,
  44         HISTC_SOCKET,
  45         HISTC_SRCLINE,
  46         HISTC_SRCFILE,
  47         HISTC_MISPREDICT,
  48         HISTC_IN_TX,
  49         HISTC_ABORT,
  50         HISTC_SYMBOL_FROM,
  51         HISTC_SYMBOL_TO,
  52         HISTC_DSO_FROM,
  53         HISTC_DSO_TO,
  54         HISTC_LOCAL_WEIGHT,
  55         HISTC_GLOBAL_WEIGHT,
  56         HISTC_CODE_PAGE_SIZE,
  57         HISTC_MEM_DADDR_SYMBOL,
  58         HISTC_MEM_DADDR_DSO,
  59         HISTC_MEM_PHYS_DADDR,
  60         HISTC_MEM_DATA_PAGE_SIZE,
  61         HISTC_MEM_LOCKED,
  62         HISTC_MEM_TLB,
  63         HISTC_MEM_LVL,
  64         HISTC_MEM_SNOOP,
  65         HISTC_MEM_DCACHELINE,
  66         HISTC_MEM_IADDR_SYMBOL,
  67         HISTC_TRANSACTION,
  68         HISTC_CYCLES,
  69         HISTC_SRCLINE_FROM,
  70         HISTC_SRCLINE_TO,
  71         HISTC_TRACE,
  72         HISTC_SYM_SIZE,
  73         HISTC_DSO_SIZE,
  74         HISTC_SYMBOL_IPC,
  75         HISTC_MEM_BLOCKED,
  76         HISTC_LOCAL_INS_LAT,
  77         HISTC_GLOBAL_INS_LAT,
  78         HISTC_LOCAL_P_STAGE_CYC,
  79         HISTC_GLOBAL_P_STAGE_CYC,
  80         HISTC_ADDR_FROM,
  81         HISTC_ADDR_TO,
  82         HISTC_NR_COLS, /* Last entry */
  83 };
  84
  85 struct thread;
  86 struct dso;
  87
  88 struct hists {
  89         struct rb_root_cached   entries_in_array[2];
  90         struct rb_root_cached   *entries_in;
  91         struct rb_root_cached   entries;
  92         struct rb_root_cached   entries_collapsed;
  93         u64                     nr_entries;
  94         u64                     nr_non_filtered_entries;
  95         u64                     callchain_period;
  96         u64                     callchain_non_filtered_period;
  97         struct thread           *thread_filter;
  98         const struct dso        *dso_filter;
  99         const char              *uid_filter_str;
 100         const char              *symbol_filter_str;
 101         pthread_mutex_t         lock;
 102         struct hists_stats      stats;
 103         u64                     event_stream;
 104         u16                     col_len[HISTC_NR_COLS];
 105         bool                    has_callchains;
 106         int                     socket_filter;
 107         struct perf_hpp_list    *hpp_list;
 108         struct list_head        hpp_formats;
 109         int                     nr_hpp_node;
 110 };
 111
 112 #define hists__has(__h, __f) (__h)->hpp_list->__f
 113
 114 struct hist_entry_iter;
 115
 116 struct hist_iter_ops {
 117         int (*prepare_entry)(struct hist_entry_iter *, struct addr_location *);
 118         int (*add_single_entry)(struct hist_entry_iter *, struct addr_location *);
 119         int (*next_entry)(struct hist_entry_iter *, struct addr_location *);
 120         int (*add_next_entry)(struct hist_entry_iter *, struct addr_location *);
 121         int (*finish_entry)(struct hist_entry_iter *, struct addr_location *);
 122 };
 123
 124 struct hist_entry_iter {
 125         int total;
 126         int curr;
 127
 128         bool hide_unresolved;
 129
 130         struct evsel *evsel;
 131         struct perf_sample *sample;
 132         struct hist_entry *he;
 133         struct symbol *parent;
 134         void *priv;
 135
 136         const struct hist_iter_ops *ops;
 137         /* user-defined callback function (optional) */
 138         int (*add_entry_cb)(struct hist_entry_iter *iter,
 139                             struct addr_location *al, bool single, void *arg);
 140 };
 141
 142 extern const struct hist_iter_ops hist_iter_normal;
 143 extern const struct hist_iter_ops hist_iter_branch;
 144 extern const struct hist_iter_ops hist_iter_mem;
 145 extern const struct hist_iter_ops hist_iter_cumulative;
 146
 147 struct hist_entry *hists__add_entry(struct hists *hists,
 148                                     struct addr_location *al,
 149                                     struct symbol *parent,
 150                                     struct branch_info *bi,
 151                                     struct mem_info *mi,
 152                                     struct perf_sample *sample,
 153                                     bool sample_self);
 154
 155 struct hist_entry *hists__add_entry_ops(struct hists *hists,
 156                                         struct hist_entry_ops *ops,
 157                                         struct addr_location *al,
 158                                         struct symbol *sym_parent,
 159                                         struct branch_info *bi,
 160                                         struct mem_info *mi,
 161                                         struct perf_sample *sample,
 162                                         bool sample_self);
 163
 164 struct hist_entry *hists__add_entry_block(struct hists *hists,
 165                                           struct addr_location *al,
 166                                           struct block_info *bi);
 167
 168 int hist_entry_iter__add(struct hist_entry_iter *iter, struct addr_location *al,
 169                          int max_stack_depth, void *arg);
 170
 171 struct perf_hpp;
 172 struct perf_hpp_fmt;
 173
 174 int64_t hist_entry__cmp(struct hist_entry *left, struct hist_entry *right);
 175 int64_t hist_entry__collapse(struct hist_entry *left, struct hist_entry *right);
 176 int hist_entry__transaction_len(void);
 177 int hist_entry__sort_snprintf(struct hist_entry *he, char *bf, size_t size,
 178                               struct hists *hists);
 179 int hist_entry__snprintf_alignment(struct hist_entry *he, struct perf_hpp *hpp,
 180                                    struct perf_hpp_fmt *fmt, int printed);
 181 void hist_entry__delete(struct hist_entry *he);
 182
 183 typedef int (*hists__resort_cb_t)(struct hist_entry *he, void *arg);
 184
 185 void evsel__output_resort_cb(struct evsel *evsel, struct ui_progress *prog,
 186                              hists__resort_cb_t cb, void *cb_arg);
 187 void evsel__output_resort(struct evsel *evsel, struct ui_progress *prog);
 188 void hists__output_resort(struct hists *hists, struct ui_progress *prog);
 189 void hists__output_resort_cb(struct hists *hists, struct ui_progress *prog,
 190                              hists__resort_cb_t cb);
 191 int hists__collapse_resort(struct hists *hists, struct ui_progress *prog);
 192
 193 void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel);
 194 void hists__delete_entries(struct hists *hists);
 195 void hists__output_recalc_col_len(struct hists *hists, int max_rows);
 196
 197 struct hist_entry *hists__get_entry(struct hists *hists, int idx);
 198
 199 u64 hists__total_period(struct hists *hists);
 200 void hists__reset_stats(struct hists *hists);
 201 void hists__inc_stats(struct hists *hists, struct hist_entry *h);
 202 void hists__inc_nr_events(struct hists *hists);
 203 void hists__inc_nr_samples(struct hists *hists, bool filtered);
 204
 205 size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
 206                       int max_cols, float min_pcnt, FILE *fp,
 207                       bool ignore_callchains);
 208 size_t evlist__fprintf_nr_events(struct evlist *evlist, FILE *fp,
 209                                  bool skip_empty);
 210
 211 void hists__filter_by_dso(struct hists *hists);
 212 void hists__filter_by_thread(struct hists *hists);
 213 void hists__filter_by_symbol(struct hists *hists);
 214 void hists__filter_by_socket(struct hists *hists);
 215
 216 static inline bool hists__has_filter(struct hists *hists)
 217 {
 218         return hists->thread_filter || hists->dso_filter ||
 219                 hists->symbol_filter_str || (hists->socket_filter > -1);
 220 }
 221
 222 u16 hists__col_len(struct hists *hists, enum hist_column col);
 223 void hists__set_col_len(struct hists *hists, enum hist_column col, u16 len);
 224 bool hists__new_col_len(struct hists *hists, enum hist_column col, u16 len);
 225 void hists__reset_col_len(struct hists *hists);
 226 void hists__calc_col_len(struct hists *hists, struct hist_entry *he);
 227
 228 void hists__match(struct hists *leader, struct hists *other);
 229 int hists__link(struct hists *leader, struct hists *other);
 230 int hists__unlink(struct hists *hists);
 231
 232 struct hists_evsel {
 233         struct evsel evsel;
 234         struct hists      hists;
 235 };
 236
 237 static inline struct evsel *hists_to_evsel(struct hists *hists)
 238 {
 239         struct hists_evsel *hevsel = container_of(hists, struct hists_evsel, hists);
 240         return &hevsel->evsel;
 241 }
 242
 243 static inline struct hists *evsel__hists(struct evsel *evsel)
 244 {
 245         struct hists_evsel *hevsel = (struct hists_evsel *)evsel;
 246         return &hevsel->hists;
 247 }
 248
 249 static __pure inline bool hists__has_callchains(struct hists *hists)
 250 {
 251         return hists->has_callchains;
 252 }
 253
 254 int hists__init(void);
 255 int __hists__init(struct hists *hists, struct perf_hpp_list *hpp_list);
 256
 257 struct rb_root_cached *hists__get_rotate_entries_in(struct hists *hists);
 258
 259 struct perf_hpp {
 260         char *buf;
 261         size_t size;
 262         const char *sep;
 263         void *ptr;
 264         bool skip;
 265 };
 266
 267 struct perf_hpp_fmt {
 268         const char *name;
 269         int (*header)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 270                       struct hists *hists, int line, int *span);
 271         int (*width)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 272                      struct hists *hists);
 273         int (*color)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 274                      struct hist_entry *he);
 275         int (*entry)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 276                      struct hist_entry *he);
 277         int64_t (*cmp)(struct perf_hpp_fmt *fmt,
 278                        struct hist_entry *a, struct hist_entry *b);
 279         int64_t (*collapse)(struct perf_hpp_fmt *fmt,
 280                             struct hist_entry *a, struct hist_entry *b);
 281         int64_t (*sort)(struct perf_hpp_fmt *fmt,
 282                         struct hist_entry *a, struct hist_entry *b);
 283         bool (*equal)(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b);
 284         void (*free)(struct perf_hpp_fmt *fmt);
 285
 286         struct list_head list;
 287         struct list_head sort_list;
 288         bool elide;
 289         int len;
 290         int user_len;
 291         int idx;
 292         int level;
 293 };
 294
 295 struct perf_hpp_list {
 296         struct list_head fields;
 297         struct list_head sorts;
 298
 299         int nr_header_lines;
 300         int need_collapse;
 301         int parent;
 302         int sym;
 303         int dso;
 304         int socket;
 305         int thread;
 306         int comm;
 307 };
 308
 309 extern struct perf_hpp_list perf_hpp_list;
 310
 311 struct perf_hpp_list_node {
 312         struct list_head        list;
 313         struct perf_hpp_list    hpp;
 314         int                     level;
 315         bool                    skip;
 316 };
 317
 318 void perf_hpp_list__column_register(struct perf_hpp_list *list,
 319                                     struct perf_hpp_fmt *format);
 320 void perf_hpp_list__register_sort_field(struct perf_hpp_list *list,
 321                                         struct perf_hpp_fmt *format);
 322 void perf_hpp_list__prepend_sort_field(struct perf_hpp_list *list,
 323                                        struct perf_hpp_fmt *format);
 324
 325 static inline void perf_hpp__column_register(struct perf_hpp_fmt *format)
 326 {
 327         perf_hpp_list__column_register(&perf_hpp_list, format);
 328 }
 329
 330 static inline void perf_hpp__register_sort_field(struct perf_hpp_fmt *format)
 331 {
 332         perf_hpp_list__register_sort_field(&perf_hpp_list, format);
 333 }
 334
 335 static inline void perf_hpp__prepend_sort_field(struct perf_hpp_fmt *format)
 336 {
 337         perf_hpp_list__prepend_sort_field(&perf_hpp_list, format);
 338 }
 339
 340 #define perf_hpp_list__for_each_format(_list, format) \
 341         list_for_each_entry(format, &(_list)->fields, list)
 342
 343 #define perf_hpp_list__for_each_format_safe(_list, format, tmp) \
 344         list_for_each_entry_safe(format, tmp, &(_list)->fields, list)
 345
 346 #define perf_hpp_list__for_each_sort_list(_list, format) \
 347         list_for_each_entry(format, &(_list)->sorts, sort_list)
 348
 349 #define perf_hpp_list__for_each_sort_list_safe(_list, format, tmp)      \
 350         list_for_each_entry_safe(format, tmp, &(_list)->sorts, sort_list)
 351
 352 #define hists__for_each_format(hists, format) \
 353         perf_hpp_list__for_each_format((hists)->hpp_list, format)
 354
 355 #define hists__for_each_sort_list(hists, format) \
 356         perf_hpp_list__for_each_sort_list((hists)->hpp_list, format)
 357
 358 extern struct perf_hpp_fmt perf_hpp__format[];
 359
 360 enum {
 361         /* Matches perf_hpp__format array. */
 362         PERF_HPP__OVERHEAD,
 363         PERF_HPP__OVERHEAD_SYS,
 364         PERF_HPP__OVERHEAD_US,
 365         PERF_HPP__OVERHEAD_GUEST_SYS,
 366         PERF_HPP__OVERHEAD_GUEST_US,
 367         PERF_HPP__OVERHEAD_ACC,
 368         PERF_HPP__SAMPLES,
 369         PERF_HPP__PERIOD,
 370
 371         PERF_HPP__MAX_INDEX
 372 };
 373
 374 void perf_hpp__init(void);
 375 void perf_hpp__cancel_cumulate(void);
 376 void perf_hpp__setup_output_field(struct perf_hpp_list *list);
 377 void perf_hpp__reset_output_field(struct perf_hpp_list *list);
 378 void perf_hpp__append_sort_keys(struct perf_hpp_list *list);
 379 int perf_hpp__setup_hists_formats(struct perf_hpp_list *list,
 380                                   struct evlist *evlist);
 381
 382
 383 bool perf_hpp__is_sort_entry(struct perf_hpp_fmt *format);
 384 bool perf_hpp__is_dynamic_entry(struct perf_hpp_fmt *format);
 385 bool perf_hpp__defined_dynamic_entry(struct perf_hpp_fmt *fmt, struct hists *hists);
 386 bool perf_hpp__is_trace_entry(struct perf_hpp_fmt *fmt);
 387 bool perf_hpp__is_srcline_entry(struct perf_hpp_fmt *fmt);
 388 bool perf_hpp__is_srcfile_entry(struct perf_hpp_fmt *fmt);
 389 bool perf_hpp__is_thread_entry(struct perf_hpp_fmt *fmt);
 390 bool perf_hpp__is_comm_entry(struct perf_hpp_fmt *fmt);
 391 bool perf_hpp__is_dso_entry(struct perf_hpp_fmt *fmt);
 392 bool perf_hpp__is_sym_entry(struct perf_hpp_fmt *fmt);
 393
 394 struct perf_hpp_fmt *perf_hpp_fmt__dup(struct perf_hpp_fmt *fmt);
 395
 396 int hist_entry__filter(struct hist_entry *he, int type, const void *arg);
 397
 398 static inline bool perf_hpp__should_skip(struct perf_hpp_fmt *format,
 399                                          struct hists *hists)
 400 {
 401         if (format->elide)
 402                 return true;
 403
 404         if (perf_hpp__is_dynamic_entry(format) &&
 405             !perf_hpp__defined_dynamic_entry(format, hists))
 406                 return true;
 407
 408         return false;
 409 }
 410
 411 void perf_hpp__reset_width(struct perf_hpp_fmt *fmt, struct hists *hists);
 412 void perf_hpp__reset_sort_width(struct perf_hpp_fmt *fmt, struct hists *hists);
 413 void perf_hpp__set_user_width(const char *width_list_str);
 414 void hists__reset_column_width(struct hists *hists);
 415
 416 typedef u64 (*hpp_field_fn)(struct hist_entry *he);
 417 typedef int (*hpp_callback_fn)(struct perf_hpp *hpp, bool front);
 418 typedef int (*hpp_snprint_fn)(struct perf_hpp *hpp, const char *fmt, ...);
 419
 420 int hpp__fmt(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 421              struct hist_entry *he, hpp_field_fn get_field,
 422              const char *fmtstr, hpp_snprint_fn print_fn, bool fmt_percent);
 423 int hpp__fmt_acc(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
 424                  struct hist_entry *he, hpp_field_fn get_field,
 425                  const char *fmtstr, hpp_snprint_fn print_fn, bool fmt_percent);
 426
 427 static inline void advance_hpp(struct perf_hpp *hpp, int inc)
 428 {
 429         hpp->buf  += inc;
 430         hpp->size -= inc;
 431 }
 432
 433 static inline size_t perf_hpp__use_color(void)
 434 {
 435         return !symbol_conf.field_sep;
 436 }
 437
 438 static inline size_t perf_hpp__color_overhead(void)
 439 {
 440         return perf_hpp__use_color() ?
 441                (COLOR_MAXLEN + sizeof(PERF_COLOR_RESET)) * PERF_HPP__MAX_INDEX
 442                : 0;
 443 }
 444
 445 struct evlist;
 446
 447 struct hist_browser_timer {
 448         void (*timer)(void *arg);
 449         void *arg;
 450         int refresh;
 451 };
 452
 453 struct annotation_options;
 454 struct res_sample;
 455
 456 enum rstype {
 457         A_NORMAL,
 458         A_ASM,
 459         A_SOURCE
 460 };
 461
 462 struct block_hist;
 463
 464 #ifdef HAVE_SLANG_SUPPORT
 465 #include "../ui/keysyms.h"
 466 void attr_to_script(char *buf, struct perf_event_attr *attr);
 467
 468 int map_symbol__tui_annotate(struct map_symbol *ms, struct evsel *evsel,
 469                              struct hist_browser_timer *hbt,
 470                              struct annotation_options *annotation_opts);
 471
 472 int hist_entry__tui_annotate(struct hist_entry *he, struct evsel *evsel,
 473                              struct hist_browser_timer *hbt,
 474                              struct annotation_options *annotation_opts);
 475
 476 int evlist__tui_browse_hists(struct evlist *evlist, const char *help, struct hist_browser_timer *hbt,
 477                              float min_pcnt, struct perf_env *env, bool warn_lost_event,
 478                              struct annotation_options *annotation_options);
 479
 480 int script_browse(const char *script_opt, struct evsel *evsel);
 481
 482 void run_script(char *cmd);
 483 int res_sample_browse(struct res_sample *res_samples, int num_res,
 484                       struct evsel *evsel, enum rstype rstype);
 485 void res_sample_init(void);
 486
 487 int block_hists_tui_browse(struct block_hist *bh, struct evsel *evsel,
 488                            float min_percent, struct perf_env *env,
 489                            struct annotation_options *annotation_opts);
 490 #else
 491 static inline
 492 int evlist__tui_browse_hists(struct evlist *evlist __maybe_unused,
 493                              const char *help __maybe_unused,
 494                              struct hist_browser_timer *hbt __maybe_unused,
 495                              float min_pcnt __maybe_unused,
 496                              struct perf_env *env __maybe_unused,
 497                              bool warn_lost_event __maybe_unused,
 498                              struct annotation_options *annotation_options __maybe_unused)
 499 {
 500         return 0;
 501 }
 502 static inline int map_symbol__tui_annotate(struct map_symbol *ms __maybe_unused,
 503                                            struct evsel *evsel __maybe_unused,
 504                                            struct hist_browser_timer *hbt __maybe_unused,
 505                                            struct annotation_options *annotation_options __maybe_unused)
 506 {
 507         return 0;
 508 }
 509
 510 static inline int hist_entry__tui_annotate(struct hist_entry *he __maybe_unused,
 511                                            struct evsel *evsel __maybe_unused,
 512                                            struct hist_browser_timer *hbt __maybe_unused,
 513                                            struct annotation_options *annotation_opts __maybe_unused)
 514 {
 515         return 0;
 516 }
 517
 518 static inline int script_browse(const char *script_opt __maybe_unused,
 519                                 struct evsel *evsel __maybe_unused)
 520 {
 521         return 0;
 522 }
 523
 524 static inline int res_sample_browse(struct res_sample *res_samples __maybe_unused,
 525                                     int num_res __maybe_unused,
 526                                     struct evsel *evsel __maybe_unused,
 527                                     enum rstype rstype __maybe_unused)
 528 {
 529         return 0;
 530 }
 531
 532 static inline void res_sample_init(void) {}
 533
 534 static inline int block_hists_tui_browse(struct block_hist *bh __maybe_unused,
 535                                          struct evsel *evsel __maybe_unused,
 536                                          float min_percent __maybe_unused,
 537                                          struct perf_env *env __maybe_unused,
 538                                          struct annotation_options *annotation_opts __maybe_unused)
 539 {
 540         return 0;
 541 }
 542
 543 #define K_LEFT  -1000
 544 #define K_RIGHT -2000
 545 #define K_SWITCH_INPUT_DATA -3000
 546 #define K_RELOAD -4000
 547 #endif
 548
 549 unsigned int hists__sort_list_width(struct hists *hists);
 550 unsigned int hists__overhead_width(struct hists *hists);
 551
 552 void hist__account_cycles(struct branch_stack *bs, struct addr_location *al,
 553                           struct perf_sample *sample, bool nonany_branch_mode,
 554                           u64 *total_cycles);
 555
 556 struct option;
 557 int parse_filter_percentage(const struct option *opt, const char *arg, int unset);
 558 int perf_hist_config(const char *var, const char *value);
 559
 560 void perf_hpp_list__init(struct perf_hpp_list *list);
 561
 562 enum hierarchy_move_dir {
 563         HMD_NORMAL,
 564         HMD_FORCE_SIBLING,
 565         HMD_FORCE_CHILD,
 566 };
 567
 568 struct rb_node *rb_hierarchy_last(struct rb_node *node);
 569 struct rb_node *__rb_hierarchy_next(struct rb_node *node,
 570                                     enum hierarchy_move_dir hmd);
 571 struct rb_node *rb_hierarchy_prev(struct rb_node *node);
 572
 573 static inline struct rb_node *rb_hierarchy_next(struct rb_node *node)
 574 {
 575         return __rb_hierarchy_next(node, HMD_NORMAL);
 576 }
 577
 578 #define HIERARCHY_INDENT  3
 579
 580 bool hist_entry__has_hierarchy_children(struct hist_entry *he, float limit);
 581 int hpp_color_scnprintf(struct perf_hpp *hpp, const char *fmt, ...);
 582 int __hpp__slsmg_color_printf(struct perf_hpp *hpp, const char *fmt, ...);
 583 int __hist_entry__snprintf(struct hist_entry *he, struct perf_hpp *hpp,
 584                            struct perf_hpp_list *hpp_list);
 585 int hists__fprintf_headers(struct hists *hists, FILE *fp);
 586 int __hists__scnprintf_title(struct hists *hists, char *bf, size_t size, bool show_freq);
 587
 588 static inline int hists__scnprintf_title(struct hists *hists, char *bf, size_t size)
 589 {
 590         return __hists__scnprintf_title(hists, bf, size, true);
 591 }
 592
 593 #endif  /* __PERF_HIST_H */