1*4882a593Smuzhiyun #ifndef _PERF_BRANCH_H
2*4882a593Smuzhiyun #define _PERF_BRANCH_H 1
3*4882a593Smuzhiyun /*
4*4882a593Smuzhiyun * The linux/stddef.h isn't need here, but is needed for __always_inline used
5*4882a593Smuzhiyun * in files included from uapi/linux/perf_event.h such as
6*4882a593Smuzhiyun * /usr/include/linux/swab.h and /usr/include/linux/byteorder/little_endian.h,
7*4882a593Smuzhiyun * detected in at least musl libc, used in Alpine Linux. -acme
8*4882a593Smuzhiyun */
9*4882a593Smuzhiyun #include <stdio.h>
10*4882a593Smuzhiyun #include <stdint.h>
11*4882a593Smuzhiyun #include <linux/compiler.h>
12*4882a593Smuzhiyun #include <linux/stddef.h>
13*4882a593Smuzhiyun #include <linux/perf_event.h>
14*4882a593Smuzhiyun #include <linux/types.h>
15*4882a593Smuzhiyun #include "event.h"
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun struct branch_flags {
18*4882a593Smuzhiyun union {
19*4882a593Smuzhiyun u64 value;
20*4882a593Smuzhiyun struct {
21*4882a593Smuzhiyun u64 mispred:1;
22*4882a593Smuzhiyun u64 predicted:1;
23*4882a593Smuzhiyun u64 in_tx:1;
24*4882a593Smuzhiyun u64 abort:1;
25*4882a593Smuzhiyun u64 cycles:16;
26*4882a593Smuzhiyun u64 type:4;
27*4882a593Smuzhiyun u64 reserved:40;
28*4882a593Smuzhiyun };
29*4882a593Smuzhiyun };
30*4882a593Smuzhiyun };
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun struct branch_info {
33*4882a593Smuzhiyun struct addr_map_symbol from;
34*4882a593Smuzhiyun struct addr_map_symbol to;
35*4882a593Smuzhiyun struct branch_flags flags;
36*4882a593Smuzhiyun char *srcline_from;
37*4882a593Smuzhiyun char *srcline_to;
38*4882a593Smuzhiyun };
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun struct branch_entry {
41*4882a593Smuzhiyun u64 from;
42*4882a593Smuzhiyun u64 to;
43*4882a593Smuzhiyun struct branch_flags flags;
44*4882a593Smuzhiyun };
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun struct branch_stack {
47*4882a593Smuzhiyun u64 nr;
48*4882a593Smuzhiyun u64 hw_idx;
49*4882a593Smuzhiyun struct branch_entry entries[];
50*4882a593Smuzhiyun };
51*4882a593Smuzhiyun
52*4882a593Smuzhiyun /*
53*4882a593Smuzhiyun * The hw_idx is only available when PERF_SAMPLE_BRANCH_HW_INDEX is applied.
54*4882a593Smuzhiyun * Otherwise, the output format of a sample with branch stack is
55*4882a593Smuzhiyun * struct branch_stack {
56*4882a593Smuzhiyun * u64 nr;
57*4882a593Smuzhiyun * struct branch_entry entries[0];
58*4882a593Smuzhiyun * }
59*4882a593Smuzhiyun * Check whether the hw_idx is available,
60*4882a593Smuzhiyun * and return the corresponding pointer of entries[0].
61*4882a593Smuzhiyun */
perf_sample__branch_entries(struct perf_sample * sample)62*4882a593Smuzhiyun static inline struct branch_entry *perf_sample__branch_entries(struct perf_sample *sample)
63*4882a593Smuzhiyun {
64*4882a593Smuzhiyun u64 *entry = (u64 *)sample->branch_stack;
65*4882a593Smuzhiyun
66*4882a593Smuzhiyun entry++;
67*4882a593Smuzhiyun if (sample->no_hw_idx)
68*4882a593Smuzhiyun return (struct branch_entry *)entry;
69*4882a593Smuzhiyun return (struct branch_entry *)(++entry);
70*4882a593Smuzhiyun }
71*4882a593Smuzhiyun
72*4882a593Smuzhiyun struct branch_type_stat {
73*4882a593Smuzhiyun bool branch_to;
74*4882a593Smuzhiyun u64 counts[PERF_BR_MAX];
75*4882a593Smuzhiyun u64 cond_fwd;
76*4882a593Smuzhiyun u64 cond_bwd;
77*4882a593Smuzhiyun u64 cross_4k;
78*4882a593Smuzhiyun u64 cross_2m;
79*4882a593Smuzhiyun };
80*4882a593Smuzhiyun
81*4882a593Smuzhiyun void branch_type_count(struct branch_type_stat *st, struct branch_flags *flags,
82*4882a593Smuzhiyun u64 from, u64 to);
83*4882a593Smuzhiyun
84*4882a593Smuzhiyun const char *branch_type_name(int type);
85*4882a593Smuzhiyun void branch_type_stat_display(FILE *fp, struct branch_type_stat *st);
86*4882a593Smuzhiyun int branch_type_str(struct branch_type_stat *st, char *bf, int bfsize);
87*4882a593Smuzhiyun
88*4882a593Smuzhiyun #endif /* _PERF_BRANCH_H */
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