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__process_attr(struct perf_tool *tool, union perf_event *event,
109 struct perf_evlist **pevlist);
111 int perf_event__synthesize_tracing_data(struct perf_tool *tool,
112 int fd, struct perf_evlist *evlist,
113 perf_event__handler_t process);
114 int perf_event__process_tracing_data(struct perf_tool *tool,
115 union perf_event *event,
116 struct perf_session *session);
118 int perf_event__synthesize_build_id(struct perf_tool *tool,
119 struct dso *pos, u16 misc,
120 perf_event__handler_t process,
121 struct machine *machine);
122 int perf_event__process_build_id(struct perf_tool *tool,
123 union perf_event *event,
124 struct perf_session *session);
125 bool is_perf_magic(u64 magic);
127 #define NAME_ALIGN 64
129 int write_padded(int fd, const void *bf, size_t count, size_t count_aligned);
132 * arch specific callback
134 int get_cpuid(char *buffer, size_t sz);
136 #endif /* __PERF_HEADER_H */