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
16struct 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
26struct 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
34struct branch_entry {
35	u64			from;
36	u64			to;
37	struct branch_flags	flags;
38};
39
40struct branch_stack {
41	u64			nr;
42	struct branch_entry	entries[0];
 
43};
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
44
45struct 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
54void branch_type_count(struct branch_type_stat *st, struct branch_flags *flags,
55		       u64 from, u64 to);
56
57const char *branch_type_name(int type);
58void branch_type_stat_display(FILE *fp, struct branch_type_stat *st);
59int branch_type_str(struct branch_type_stat *st, char *bf, int bfsize);
60
61#endif /* _PERF_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#include "event.h"
16
17struct branch_flags {
18	union {
19		u64 value;
20		struct {
21			u64 mispred:1;
22			u64 predicted:1;
23			u64 in_tx:1;
24			u64 abort:1;
25			u64 cycles:16;
26			u64 type:4;
27			u64 reserved:40;
28		};
29	};
30};
31
32struct branch_info {
33	struct addr_map_symbol from;
34	struct addr_map_symbol to;
35	struct branch_flags    flags;
36	char		       *srcline_from;
37	char		       *srcline_to;
38};
39
40struct branch_entry {
41	u64			from;
42	u64			to;
43	struct branch_flags	flags;
44};
45
46struct branch_stack {
47	u64			nr;
48	u64			hw_idx;
49	struct branch_entry	entries[];
50};
51
52/*
53 * The hw_idx is only available when PERF_SAMPLE_BRANCH_HW_INDEX is applied.
54 * Otherwise, the output format of a sample with branch stack is
55 * struct branch_stack {
56 *	u64			nr;
57 *	struct branch_entry	entries[0];
58 * }
59 * Check whether the hw_idx is available,
60 * and return the corresponding pointer of entries[0].
61 */
62static inline struct branch_entry *perf_sample__branch_entries(struct perf_sample *sample)
63{
64	u64 *entry = (u64 *)sample->branch_stack;
65
66	entry++;
67	if (sample->no_hw_idx)
68		return (struct branch_entry *)entry;
69	return (struct branch_entry *)(++entry);
70}
71
72struct branch_type_stat {
73	bool	branch_to;
74	u64	counts[PERF_BR_MAX];
75	u64	cond_fwd;
76	u64	cond_bwd;
77	u64	cross_4k;
78	u64	cross_2m;
79};
80
81void branch_type_count(struct branch_type_stat *st, struct branch_flags *flags,
82		       u64 from, u64 to);
83
84const char *branch_type_name(int type);
85void branch_type_stat_display(FILE *fp, struct branch_type_stat *st);
86int branch_type_str(struct branch_type_stat *st, char *bf, int bfsize);
87
88#endif /* _PERF_BRANCH_H */