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,
35 HEADER_FEAT_BITS
= 256,
38 enum perf_header_version
{
39 PERF_HEADER_VERSION_1
,
40 PERF_HEADER_VERSION_2
,
43 struct perf_file_section
{
48 struct perf_file_header
{
52 struct perf_file_section attrs
;
53 struct perf_file_section data
;
54 /* event_types is ignored */
55 struct perf_file_section event_types
;
56 DECLARE_BITMAP(adds_features
, HEADER_FEAT_BITS
);
59 struct perf_pipe_file_header
{
66 int perf_file_header__read(struct perf_file_header
*header
,
67 struct perf_header
*ph
, int fd
);
70 enum perf_header_version version
;
75 DECLARE_BITMAP(adds_features
, HEADER_FEAT_BITS
);
82 int perf_session__read_header(struct perf_session
*session
);
83 int perf_session__write_header(struct perf_session
*session
,
84 struct perf_evlist
*evlist
,
85 int fd
, bool at_exit
);
86 int perf_header__write_pipe(int fd
);
88 void perf_header__set_feat(struct perf_header
*header
, int feat
);
89 void perf_header__clear_feat(struct perf_header
*header
, int feat
);
90 bool perf_header__has_feat(const struct perf_header
*header
, int feat
);
92 int perf_header__set_cmdline(int argc
, const char **argv
);
94 int perf_header__process_sections(struct perf_header
*header
, int fd
,
96 int (*process
)(struct perf_file_section
*section
,
97 struct perf_header
*ph
,
98 int feat
, int fd
, void *data
));
100 int perf_header__fprintf_info(struct perf_session
*s
, FILE *fp
, bool full
);
102 int perf_event__synthesize_attr(struct perf_tool
*tool
,
103 struct perf_event_attr
*attr
, u32 ids
, u64
*id
,
104 perf_event__handler_t process
);
105 int perf_event__synthesize_attrs(struct perf_tool
*tool
,
106 struct perf_session
*session
,
107 perf_event__handler_t process
);
108 int perf_event__synthesize_event_update_unit(struct perf_tool
*tool
,
109 struct perf_evsel
*evsel
,
110 perf_event__handler_t process
);
111 int perf_event__synthesize_event_update_scale(struct perf_tool
*tool
,
112 struct perf_evsel
*evsel
,
113 perf_event__handler_t process
);
114 int perf_event__process_attr(struct perf_tool
*tool
, union perf_event
*event
,
115 struct perf_evlist
**pevlist
);
116 int perf_event__process_event_update(struct perf_tool
*tool __maybe_unused
,
117 union perf_event
*event
,
118 struct perf_evlist
**pevlist
);
120 int perf_event__synthesize_tracing_data(struct perf_tool
*tool
,
121 int fd
, struct perf_evlist
*evlist
,
122 perf_event__handler_t process
);
123 int perf_event__process_tracing_data(struct perf_tool
*tool
,
124 union perf_event
*event
,
125 struct perf_session
*session
);
127 int perf_event__synthesize_build_id(struct perf_tool
*tool
,
128 struct dso
*pos
, u16 misc
,
129 perf_event__handler_t process
,
130 struct machine
*machine
);
131 int perf_event__process_build_id(struct perf_tool
*tool
,
132 union perf_event
*event
,
133 struct perf_session
*session
);
134 bool is_perf_magic(u64 magic
);
136 #define NAME_ALIGN 64
138 int write_padded(int fd
, const void *bf
, size_t count
, size_t count_aligned
);
141 * arch specific callback
143 int get_cpuid(char *buffer
, size_t sz
);
145 #endif /* __PERF_HEADER_H */