tools/perf/util/branch.h

   1 #ifndef _PERF_BRANCH_H
   2 #define _PERF_BRANCH_H 1
   3 /*
   4  * The linux/stddef.h isn't need here, but is needed for __always_inline used
   5  * in files included from uapi/linux/perf_event.h such as
   6  * /usr/include/linux/swab.h and /usr/include/linux/byteorder/little_endian.h,
   7  * detected in at least musl libc, used in Alpine Linux. -acme
   8  */
   9 #include <stdio.h>
  10 #include <stdint.h>
  11 #include <linux/compiler.h>
  12 #include <linux/stddef.h>
  13 #include <linux/perf_event.h>
  14 #include <linux/types.h>
  15
  16 struct branch_flags {
  17         u64 mispred:1;
  18         u64 predicted:1;
  19         u64 in_tx:1;
  20         u64 abort:1;
  21         u64 cycles:16;
  22         u64 type:4;
  23         u64 reserved:40;
  24 };
  25
  26 struct branch_info {
  27         struct addr_map_symbol from;
  28         struct addr_map_symbol to;
  29         struct branch_flags    flags;
  30         char                   *srcline_from;
  31         char                   *srcline_to;
  32 };
  33
  34 struct branch_entry {
  35         u64                     from;
  36         u64                     to;
  37         struct branch_flags     flags;
  38 };
  39
  40 struct branch_stack {
  41         u64                     nr;
  42         struct branch_entry     entries[0];
  43 };
  44
  45 struct branch_type_stat {
  46         bool    branch_to;
  47         u64     counts[PERF_BR_MAX];
  48         u64     cond_fwd;
  49         u64     cond_bwd;
  50         u64     cross_4k;
  51         u64     cross_2m;
  52 };
  53
  54 void branch_type_count(struct branch_type_stat *st, struct branch_flags *flags,
  55                        u64 from, u64 to);
  56
  57 const char *branch_type_name(int type);
  58 void branch_type_stat_display(FILE *fp, struct branch_type_stat *st);
  59 int branch_type_str(struct branch_type_stat *st, char *bf, int bfsize);
  60
  61 #endif /* _PERF_BRANCH_H */