1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __PERF_HEADER_H
#define __PERF_HEADER_H
#include <linux/stddef.h>
#include <linux/perf_event.h>
#include <sys/types.h>
#include <stdio.h> // FILE
#include <stdbool.h>
#include <linux/bitmap.h>
#include <linux/types.h>
#include "env.h"
#include "pmu.h"
enum {
HEADER_RESERVED = 0, /* always cleared */
HEADER_FIRST_FEATURE = 1,
HEADER_TRACING_DATA = 1,
HEADER_BUILD_ID,
HEADER_HOSTNAME,
HEADER_OSRELEASE,
HEADER_VERSION,
HEADER_ARCH,
HEADER_NRCPUS,
HEADER_CPUDESC,
HEADER_CPUID,
HEADER_TOTAL_MEM,
HEADER_CMDLINE,
HEADER_EVENT_DESC,
HEADER_CPU_TOPOLOGY,
HEADER_NUMA_TOPOLOGY,
HEADER_BRANCH_STACK,
HEADER_PMU_MAPPINGS,
HEADER_GROUP_DESC,
HEADER_AUXTRACE,
HEADER_STAT,
HEADER_CACHE,
HEADER_SAMPLE_TIME,
HEADER_MEM_TOPOLOGY,
HEADER_CLOCKID,
HEADER_DIR_FORMAT,
HEADER_BPF_PROG_INFO,
HEADER_BPF_BTF,
HEADER_COMPRESSED,
HEADER_CPU_PMU_CAPS,
HEADER_CLOCK_DATA,
HEADER_HYBRID_TOPOLOGY,
HEADER_HYBRID_CPU_PMU_CAPS,
HEADER_LAST_FEATURE,
HEADER_FEAT_BITS = 256,
};
enum perf_header_version {
PERF_HEADER_VERSION_1,
PERF_HEADER_VERSION_2,
};
struct perf_file_section {
u64 offset;
u64 size;
};
struct perf_file_header {
u64 magic;
u64 size;
u64 attr_size;
struct perf_file_section attrs;
struct perf_file_section data;
/* event_types is ignored */
struct perf_file_section event_types;
DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
};
struct perf_pipe_file_header {
u64 magic;
u64 size;
};
struct perf_header;
int perf_file_header__read(struct perf_file_header *header,
struct perf_header *ph, int fd);
struct perf_header {
enum perf_header_version version;
bool needs_swap;
u64 data_offset;
u64 data_size;
u64 feat_offset;
DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
struct perf_env env;
};
struct feat_fd {
struct perf_header *ph;
int fd;
void *buf; /* Either buf != NULL or fd >= 0 */
ssize_t offset;
size_t size;
struct evsel *events;
};
struct perf_header_feature_ops {
int (*write)(struct feat_fd *ff, struct evlist *evlist);
void (*print)(struct feat_fd *ff, FILE *fp);
int (*process)(struct feat_fd *ff, void *data);
const char *name;
bool full_only;
bool synthesize;
};
struct evlist;
struct perf_session;
struct perf_tool;
union perf_event;
int perf_session__read_header(struct perf_session *session, int repipe_fd);
int perf_session__write_header(struct perf_session *session,
struct evlist *evlist,
int fd, bool at_exit);
int perf_header__write_pipe(int fd);
void perf_header__set_feat(struct perf_header *header, int feat);
void perf_header__clear_feat(struct perf_header *header, int feat);
bool perf_header__has_feat(const struct perf_header *header, int feat);
int perf_header__set_cmdline(int argc, const char **argv);
int perf_header__process_sections(struct perf_header *header, int fd,
void *data,
int (*process)(struct perf_file_section *section,
struct perf_header *ph,
int feat, int fd, void *data));
int perf_header__fprintf_info(struct perf_session *s, FILE *fp, bool full);
int perf_event__process_feature(struct perf_session *session,
union perf_event *event);
int perf_event__process_attr(struct perf_tool *tool, union perf_event *event,
struct evlist **pevlist);
int perf_event__process_event_update(struct perf_tool *tool,
union perf_event *event,
struct evlist **pevlist);
size_t perf_event__fprintf_event_update(union perf_event *event, FILE *fp);
int perf_event__process_tracing_data(struct perf_session *session,
union perf_event *event);
int perf_event__process_build_id(struct perf_session *session,
union perf_event *event);
bool is_perf_magic(u64 magic);
#define NAME_ALIGN 64
struct feat_fd;
int do_write(struct feat_fd *fd, const void *buf, size_t size);
int write_padded(struct feat_fd *fd, const void *bf,
size_t count, size_t count_aligned);
/*
* arch specific callback
*/
int get_cpuid(char *buffer, size_t sz);
char *get_cpuid_str(struct perf_pmu *pmu __maybe_unused);
int strcmp_cpuid_str(const char *s1, const char *s2);
#endif /* __PERF_HEADER_H */
|
