1#ifndef _PERF_BRANCH_H
 2#define _PERF_BRANCH_H 1
 
 
 
 
 
 
 
 
 
 
 
 3
 4#include <stdint.h>
 5#include "../perf.h"
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 6
 7struct branch_type_stat {
 8	bool	branch_to;
 9	u64	counts[PERF_BR_MAX];
 
10	u64	cond_fwd;
11	u64	cond_bwd;
12	u64	cross_4k;
13	u64	cross_2m;
14};
15
16struct branch_flags;
17
18void branch_type_count(struct branch_type_stat *st, struct branch_flags *flags,
19		       u64 from, u64 to);
20
21const char *branch_type_name(int type);
22void branch_type_stat_display(FILE *fp, struct branch_type_stat *st);
23int branch_type_str(struct branch_type_stat *st, char *bf, int bfsize);
 
 
 
 
24
25#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 <linux/perf_event.h>
11#include <linux/types.h>
12#include "util/map_symbol.h"
13#include "util/sample.h"
14
15struct branch_flags {
16	union {
17		u64 value;
18		struct {
19			u64 mispred:1;
20			u64 predicted:1;
21			u64 in_tx:1;
22			u64 abort:1;
23			u64 cycles:16;
24			u64 type:4;
25			u64 spec:2;
26			u64 new_type:4;
27			u64 priv:3;
28			u64 reserved:31;
29		};
30	};
31};
32
33struct branch_info {
34	struct addr_map_symbol from;
35	struct addr_map_symbol to;
36	struct branch_flags    flags;
37	u64		       branch_stack_cntr;
38	char		       *srcline_from;
39	char		       *srcline_to;
40};
41
42struct branch_entry {
43	u64			from;
44	u64			to;
45	struct branch_flags	flags;
46};
47
48struct branch_stack {
49	u64			nr;
50	u64			hw_idx;
51	struct branch_entry	entries[];
52};
53
54/*
55 * The hw_idx is only available when PERF_SAMPLE_BRANCH_HW_INDEX is applied.
56 * Otherwise, the output format of a sample with branch stack is
57 * struct branch_stack {
58 *	u64			nr;
59 *	struct branch_entry	entries[0];
60 * }
61 * Check whether the hw_idx is available,
62 * and return the corresponding pointer of entries[0].
63 */
64static inline struct branch_entry *perf_sample__branch_entries(struct perf_sample *sample)
65{
66	u64 *entry = (u64 *)sample->branch_stack;
67
68	entry++;
69	if (sample->no_hw_idx)
70		return (struct branch_entry *)entry;
71	return (struct branch_entry *)(++entry);
72}
73
74struct branch_type_stat {
75	bool	branch_to;
76	u64	counts[PERF_BR_MAX];
77	u64	new_counts[PERF_BR_NEW_MAX];
78	u64	cond_fwd;
79	u64	cond_bwd;
80	u64	cross_4k;
81	u64	cross_2m;
82};
83
 
 
84void branch_type_count(struct branch_type_stat *st, struct branch_flags *flags,
85		       u64 from, u64 to);
86
87const char *branch_type_name(int type);
88const char *branch_new_type_name(int new_type);
89const char *get_branch_type(struct branch_entry *e);
90void branch_type_stat_display(FILE *fp, const struct branch_type_stat *st);
91int branch_type_str(const struct branch_type_stat *st, char *bf, int bfsize);
92
93const char *branch_spec_desc(int spec);
94
95#endif /* _PERF_BRANCH_H */