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      1 #ifndef __PERF_HIST_H
      2 #define __PERF_HIST_H
      3 
      4 /* ANDROID_CHANGE_BEGIN */
      5 #ifndef __APPLE__
      6 /* Suppress kernel-name space pollution in <linux/types.h> below */
      7 #include <features.h>
      8 #include <linux/types.h>
      9 #endif
     10 /* ANDROID_CHANGE_END */
     11 #include "callchain.h"
     12 
     13 extern struct callchain_param callchain_param;
     14 
     15 struct hist_entry;
     16 struct addr_location;
     17 struct symbol;
     18 
     19 /*
     20  * The kernel collects the number of events it couldn't send in a stretch and
     21  * when possible sends this number in a PERF_RECORD_LOST event. The number of
     22  * such "chunks" of lost events is stored in .nr_events[PERF_EVENT_LOST] while
     23  * total_lost tells exactly how many events the kernel in fact lost, i.e. it is
     24  * the sum of all struct lost_event.lost fields reported.
     25  *
     26  * The total_period is needed because by default auto-freq is used, so
     27  * multipling nr_events[PERF_EVENT_SAMPLE] by a frequency isn't possible to get
     28  * the total number of low level events, it is necessary to to sum all struct
     29  * sample_event.period and stash the result in total_period.
     30  */
     31 struct events_stats {
     32 	u64 total_period;
     33 	u64 total_lost;
     34 	u64 total_invalid_chains;
     35 	u32 nr_events[PERF_RECORD_HEADER_MAX];
     36 	u32 nr_unknown_events;
     37 	u32 nr_invalid_chains;
     38 	u32 nr_unknown_id;
     39 };
     40 
     41 enum hist_column {
     42 	HISTC_SYMBOL,
     43 	HISTC_DSO,
     44 	HISTC_THREAD,
     45 	HISTC_COMM,
     46 	HISTC_PARENT,
     47 	HISTC_CPU,
     48 	HISTC_NR_COLS, /* Last entry */
     49 };
     50 
     51 struct hists {
     52 	struct rb_root		entries;
     53 	u64			nr_entries;
     54 	struct events_stats	stats;
     55 	u64			event_stream;
     56 	u16			col_len[HISTC_NR_COLS];
     57 	/* Best would be to reuse the session callchain cursor */
     58 	struct callchain_cursor	callchain_cursor;
     59 };
     60 
     61 struct hist_entry *__hists__add_entry(struct hists *self,
     62 				      struct addr_location *al,
     63 				      struct symbol *parent, u64 period);
     64 extern int64_t hist_entry__cmp(struct hist_entry *, struct hist_entry *);
     65 extern int64_t hist_entry__collapse(struct hist_entry *, struct hist_entry *);
     66 int hist_entry__fprintf(struct hist_entry *self, struct hists *hists,
     67 			struct hists *pair_hists, bool show_displacement,
     68 			long displacement, FILE *fp, u64 total);
     69 int hist_entry__snprintf(struct hist_entry *self, char *bf, size_t size,
     70 			 struct hists *hists, struct hists *pair_hists,
     71 			 bool show_displacement, long displacement,
     72 			 bool color, u64 total);
     73 void hist_entry__free(struct hist_entry *);
     74 
     75 void hists__output_resort(struct hists *self);
     76 void hists__collapse_resort(struct hists *self);
     77 
     78 void hists__inc_nr_events(struct hists *self, u32 type);
     79 size_t hists__fprintf_nr_events(struct hists *self, FILE *fp);
     80 
     81 size_t hists__fprintf(struct hists *self, struct hists *pair,
     82 		      bool show_displacement, FILE *fp);
     83 
     84 int hist_entry__inc_addr_samples(struct hist_entry *self, int evidx, u64 addr);
     85 int hist_entry__annotate(struct hist_entry *self, size_t privsize);
     86 
     87 void hists__filter_by_dso(struct hists *self, const struct dso *dso);
     88 void hists__filter_by_thread(struct hists *self, const struct thread *thread);
     89 
     90 u16 hists__col_len(struct hists *self, enum hist_column col);
     91 void hists__set_col_len(struct hists *self, enum hist_column col, u16 len);
     92 bool hists__new_col_len(struct hists *self, enum hist_column col, u16 len);
     93 
     94 struct perf_evlist;
     95 
     96 #ifdef NO_NEWT_SUPPORT
     97 static inline
     98 int perf_evlist__tui_browse_hists(struct perf_evlist *evlist __used,
     99 				  const char *help __used)
    100 {
    101 	return 0;
    102 }
    103 
    104 static inline int hist_entry__tui_annotate(struct hist_entry *self __used,
    105 					   int evidx __used)
    106 {
    107 	return 0;
    108 }
    109 #define KEY_LEFT -1
    110 #define KEY_RIGHT -2
    111 #else
    112 #include <newt.h>
    113 int hist_entry__tui_annotate(struct hist_entry *self, int evidx);
    114 
    115 #define KEY_LEFT NEWT_KEY_LEFT
    116 #define KEY_RIGHT NEWT_KEY_RIGHT
    117 
    118 int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help);
    119 #endif
    120 
    121 unsigned int hists__sort_list_width(struct hists *self);
    122 
    123 #endif	/* __PERF_HIST_H */
    124