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 13 /* 14 * The kernel collects the number of events it couldn't send in a stretch and 15 * when possible sends this number in a PERF_RECORD_LOST event. The number of 16 * such "chunks" of lost events is stored in .nr_events[PERF_EVENT_LOST] while 17 * total_lost tells exactly how many events the kernel in fact lost, i.e. it is 18 * the sum of all struct lost_event.lost fields reported. 19 * 20 * The total_period is needed because by default auto-freq is used, so 21 * multipling nr_events[PERF_EVENT_SAMPLE] by a frequency isn't possible to get 22 * the total number of low level events, it is necessary to to sum all struct 23 * sample_event.period and stash the result in total_period. 24 */ 25 struct events_stats { 26 u64 total_period; 27 u64 total_lost; 28 u64 total_invalid_chains; 29 u32 nr_events[PERF_RECORD_HEADER_MAX]; 30 u32 nr_unknown_events; 31 u32 nr_invalid_chains; 32 u32 nr_unknown_id; 33 }; 34 35 enum hist_column { 36 HISTC_SYMBOL, 37 HISTC_DSO, 38 HISTC_THREAD, 39 HISTC_COMM, 40 HISTC_PARENT, 41 HISTC_CPU, 42 HISTC_NR_COLS, /* Last entry */ 43 }; 44 45 struct hists { 46 struct rb_root entries; 47 u64 nr_entries; 48 struct events_stats stats; 49 u64 event_stream; 50 u16 col_len[HISTC_NR_COLS]; 51 /* Best would be to reuse the session callchain cursor */ 52 struct callchain_cursor callchain_cursor; 53 }; 54 55 struct hist_entry *__hists__add_entry(struct hists *self, 56 struct addr_location *al, 57 struct symbol *parent, u64 period); 58 extern int64_t hist_entry__cmp(struct hist_entry *, struct hist_entry *); 59 extern int64_t hist_entry__collapse(struct hist_entry *, struct hist_entry *); 60 int hist_entry__fprintf(struct hist_entry *self, struct hists *hists, 61 struct hists *pair_hists, bool show_displacement, 62 long displacement, FILE *fp, u64 total); 63 int hist_entry__snprintf(struct hist_entry *self, char *bf, size_t size, 64 struct hists *hists, struct hists *pair_hists, 65 bool show_displacement, long displacement, 66 bool color, u64 total); 67 void hist_entry__free(struct hist_entry *); 68 69 void hists__output_resort(struct hists *self); 70 void hists__collapse_resort(struct hists *self); 71 72 void hists__inc_nr_events(struct hists *self, u32 type); 73 size_t hists__fprintf_nr_events(struct hists *self, FILE *fp); 74 75 size_t hists__fprintf(struct hists *self, struct hists *pair, 76 bool show_displacement, FILE *fp); 77 78 int hist_entry__inc_addr_samples(struct hist_entry *self, int evidx, u64 addr); 79 int hist_entry__annotate(struct hist_entry *self, size_t privsize); 80 81 void hists__filter_by_dso(struct hists *self, const struct dso *dso); 82 void hists__filter_by_thread(struct hists *self, const struct thread *thread); 83 84 u16 hists__col_len(struct hists *self, enum hist_column col); 85 void hists__set_col_len(struct hists *self, enum hist_column col, u16 len); 86 bool hists__new_col_len(struct hists *self, enum hist_column col, u16 len); 87 88 struct perf_evlist; 89 90 #ifdef NO_NEWT_SUPPORT 91 static inline 92 int perf_evlist__tui_browse_hists(struct perf_evlist *evlist __used, 93 const char *help __used) 94 { 95 return 0; 96 } 97 98 static inline int hist_entry__tui_annotate(struct hist_entry *self __used, 99 int evidx __used) 100 { 101 return 0; 102 } 103 #define KEY_LEFT -1 104 #define KEY_RIGHT -2 105 #else 106 #include <newt.h> 107 int hist_entry__tui_annotate(struct hist_entry *self, int evidx); 108 109 #define KEY_LEFT NEWT_KEY_LEFT 110 #define KEY_RIGHT NEWT_KEY_RIGHT 111 112 int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help); 113 #endif 114 115 unsigned int hists__sort_list_width(struct hists *self); 116 117 #endif /* __PERF_HIST_H */ 118