tools/perf/util/hist.h

   1 #ifndef __PERF_HIST_H
   2 #define __PERF_HIST_H
   3
   4 #include <linux/types.h>
   5 #include "callchain.h"
   6
   7 extern struct callchain_param callchain_param;
   8
   9 struct hist_entry;
  10 struct addr_location;
  11 struct symbol;
  12 struct rb_root;
  13
  14 struct objdump_line {
  15         struct list_head node;
  16         s64              offset;
  17         char             *line;
  18 };
  19
  20 void objdump_line__free(struct objdump_line *self);
  21 struct objdump_line *objdump__get_next_ip_line(struct list_head *head,
  22                                                struct objdump_line *pos);
  23
  24 struct sym_hist {
  25         u64             sum;
  26         u64             ip[0];
  27 };
  28
  29 struct sym_ext {
  30         struct rb_node  node;
  31         double          percent;
  32         char            *path;
  33 };
  34
  35 struct sym_priv {
  36         struct sym_hist *hist;
  37         struct sym_ext  *ext;
  38 };
  39
  40 /*
  41  * The kernel collects the number of events it couldn't send in a stretch and
  42  * when possible sends this number in a PERF_RECORD_LOST event. The number of
  43  * such "chunks" of lost events is stored in .nr_events[PERF_EVENT_LOST] while
  44  * total_lost tells exactly how many events the kernel in fact lost, i.e. it is
  45  * the sum of all struct lost_event.lost fields reported.
  46  *
  47  * The total_period is needed because by default auto-freq is used, so
  48  * multipling nr_events[PERF_EVENT_SAMPLE] by a frequency isn't possible to get
  49  * the total number of low level events, it is necessary to to sum all struct
  50  * sample_event.period and stash the result in total_period.
  51  */
  52 struct events_stats {
  53         u64 total_period;
  54         u64 total_lost;
  55         u32 nr_events[PERF_RECORD_HEADER_MAX];
  56         u32 nr_unknown_events;
  57 };
  58
  59 struct hists {
  60         struct rb_node          rb_node;
  61         struct rb_root          entries;
  62         u64                     nr_entries;
  63         struct events_stats     stats;
  64         u64                     config;
  65         u64                     event_stream;
  66         u32                     type;
  67         u32                     max_sym_namelen;
  68 };
  69
  70 struct hist_entry *__hists__add_entry(struct hists *self,
  71                                       struct addr_location *al,
  72                                       struct symbol *parent, u64 period);
  73 extern int64_t hist_entry__cmp(struct hist_entry *, struct hist_entry *);
  74 extern int64_t hist_entry__collapse(struct hist_entry *, struct hist_entry *);
  75 int hist_entry__fprintf(struct hist_entry *self, struct hists *pair_hists,
  76                         bool show_displacement, long displacement, FILE *fp,
  77                         u64 total);
  78 int hist_entry__snprintf(struct hist_entry *self, char *bf, size_t size,
  79                          struct hists *pair_hists, bool show_displacement,
  80                          long displacement, bool color, u64 total);
  81 void hist_entry__free(struct hist_entry *);
  82
  83 void hists__output_resort(struct hists *self);
  84 void hists__collapse_resort(struct hists *self);
  85
  86 void hists__inc_nr_events(struct hists *self, u32 type);
  87 size_t hists__fprintf_nr_events(struct hists *self, FILE *fp);
  88
  89 size_t hists__fprintf(struct hists *self, struct hists *pair,
  90                       bool show_displacement, FILE *fp);
  91
  92 int hist_entry__inc_addr_samples(struct hist_entry *self, u64 ip);
  93 int hist_entry__annotate(struct hist_entry *self, struct list_head *head);
  94
  95 void hists__filter_by_dso(struct hists *self, const struct dso *dso);
  96 void hists__filter_by_thread(struct hists *self, const struct thread *thread);
  97
  98 #ifdef NO_NEWT_SUPPORT
  99 static inline int hists__browse(struct hists *self __used,
 100                                 const char *helpline __used,
 101                                 const char *input_name __used)
 102 {
 103         return 0;
 104 }
 105 #else
 106 int hists__browse(struct hists *self, const char *helpline,
 107                   const char *input_name);
 108 #endif
 109 #endif  /* __PERF_HIST_H */