1 #ifndef __PERF_HEADER_H
2 #define __PERF_HEADER_H
4 #include <linux/perf_event.h>
7 #include <linux/bitmap.h>
8 #include <linux/types.h>
13 HEADER_RESERVED
= 0, /* always cleared */
14 HEADER_FIRST_FEATURE
= 1,
15 HEADER_TRACING_DATA
= 1,
37 HEADER_FEAT_BITS
= 256,
40 enum perf_header_version
{
41 PERF_HEADER_VERSION_1
,
42 PERF_HEADER_VERSION_2
,
45 struct perf_file_section
{
50 struct perf_file_header
{
54 struct perf_file_section attrs
;
55 struct perf_file_section data
;
56 /* event_types is ignored */
57 struct perf_file_section event_types
;
58 DECLARE_BITMAP(adds_features
, HEADER_FEAT_BITS
);
61 struct perf_pipe_file_header
{
68 int perf_file_header__read(struct perf_file_header
*header
,
69 struct perf_header
*ph
, int fd
);
72 enum perf_header_version version
;
77 DECLARE_BITMAP(adds_features
, HEADER_FEAT_BITS
);
84 int perf_session__read_header(struct perf_session
*session
);
85 int perf_session__write_header(struct perf_session
*session
,
86 struct perf_evlist
*evlist
,
87 int fd
, bool at_exit
);
88 int perf_header__write_pipe(int fd
);
90 void perf_header__set_feat(struct perf_header
*header
, int feat
);
91 void perf_header__clear_feat(struct perf_header
*header
, int feat
);
92 bool perf_header__has_feat(const struct perf_header
*header
, int feat
);
94 int perf_header__set_cmdline(int argc
, const char **argv
);
96 int perf_header__process_sections(struct perf_header
*header
, int fd
,
98 int (*process
)(struct perf_file_section
*section
,
99 struct perf_header
*ph
,
100 int feat
, int fd
, void *data
));
102 int perf_header__fprintf_info(struct perf_session
*s
, FILE *fp
, bool full
);
104 int perf_event__synthesize_features(struct perf_tool
*tool
,
105 struct perf_session
*session
,
106 struct perf_evlist
*evlist
,
107 perf_event__handler_t process
);
109 int perf_event__process_feature(struct perf_tool
*tool
,
110 union perf_event
*event
,
111 struct perf_session
*session
);
113 int perf_event__synthesize_attr(struct perf_tool
*tool
,
114 struct perf_event_attr
*attr
, u32 ids
, u64
*id
,
115 perf_event__handler_t process
);
116 int perf_event__synthesize_attrs(struct perf_tool
*tool
,
117 struct perf_session
*session
,
118 perf_event__handler_t process
);
119 int perf_event__synthesize_event_update_unit(struct perf_tool
*tool
,
120 struct perf_evsel
*evsel
,
121 perf_event__handler_t process
);
122 int perf_event__synthesize_event_update_scale(struct perf_tool
*tool
,
123 struct perf_evsel
*evsel
,
124 perf_event__handler_t process
);
125 int perf_event__synthesize_event_update_name(struct perf_tool
*tool
,
126 struct perf_evsel
*evsel
,
127 perf_event__handler_t process
);
128 int perf_event__synthesize_event_update_cpus(struct perf_tool
*tool
,
129 struct perf_evsel
*evsel
,
130 perf_event__handler_t process
);
131 int perf_event__process_attr(struct perf_tool
*tool
, union perf_event
*event
,
132 struct perf_evlist
**pevlist
);
133 int perf_event__process_event_update(struct perf_tool
*tool
,
134 union perf_event
*event
,
135 struct perf_evlist
**pevlist
);
136 size_t perf_event__fprintf_event_update(union perf_event
*event
, FILE *fp
);
138 int perf_event__synthesize_tracing_data(struct perf_tool
*tool
,
139 int fd
, struct perf_evlist
*evlist
,
140 perf_event__handler_t process
);
141 int perf_event__process_tracing_data(struct perf_tool
*tool
,
142 union perf_event
*event
,
143 struct perf_session
*session
);
145 int perf_event__synthesize_build_id(struct perf_tool
*tool
,
146 struct dso
*pos
, u16 misc
,
147 perf_event__handler_t process
,
148 struct machine
*machine
);
149 int perf_event__process_build_id(struct perf_tool
*tool
,
150 union perf_event
*event
,
151 struct perf_session
*session
);
152 bool is_perf_magic(u64 magic
);
154 #define NAME_ALIGN 64
158 int do_write(struct feat_fd
*fd
, const void *buf
, size_t size
);
160 int write_padded(struct feat_fd
*fd
, const void *bf
,
161 size_t count
, size_t count_aligned
);
164 * arch specific callback
166 int get_cpuid(char *buffer
, size_t sz
);
168 char *get_cpuid_str(void);
169 #endif /* __PERF_HEADER_H */