Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1#ifndef __PERF_HEADER_H
2#define __PERF_HEADER_H
3
4#include "../../../include/linux/perf_event.h"
5#include <sys/types.h>
6#include <stdbool.h>
7#include "types.h"
8#include "event.h"
9
10#include <linux/bitmap.h>
11
12struct perf_header_attr {
13 struct perf_event_attr attr;
14 int ids, size;
15 u64 *id;
16 off_t id_offset;
17};
18
19enum {
20 HEADER_TRACE_INFO = 1,
21 HEADER_BUILD_ID,
22 HEADER_LAST_FEATURE,
23};
24
25#define HEADER_FEAT_BITS 256
26
27struct perf_file_section {
28 u64 offset;
29 u64 size;
30};
31
32struct perf_file_header {
33 u64 magic;
34 u64 size;
35 u64 attr_size;
36 struct perf_file_section attrs;
37 struct perf_file_section data;
38 struct perf_file_section event_types;
39 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
40};
41
42struct perf_pipe_file_header {
43 u64 magic;
44 u64 size;
45};
46
47struct perf_header;
48
49int perf_file_header__read(struct perf_file_header *self,
50 struct perf_header *ph, int fd);
51
52struct perf_header {
53 int frozen;
54 int attrs, size;
55 bool needs_swap;
56 struct perf_header_attr **attr;
57 s64 attr_offset;
58 u64 data_offset;
59 u64 data_size;
60 u64 event_offset;
61 u64 event_size;
62 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
63};
64
65int perf_header__init(struct perf_header *self);
66void perf_header__exit(struct perf_header *self);
67
68int perf_header__read(struct perf_session *session, int fd);
69int perf_header__write(struct perf_header *self, int fd, bool at_exit);
70int perf_header__write_pipe(int fd);
71
72int perf_header__add_attr(struct perf_header *self,
73 struct perf_header_attr *attr);
74
75int perf_header__push_event(u64 id, const char *name);
76char *perf_header__find_event(u64 id);
77
78struct perf_header_attr *perf_header_attr__new(struct perf_event_attr *attr);
79void perf_header_attr__delete(struct perf_header_attr *self);
80
81int perf_header_attr__add_id(struct perf_header_attr *self, u64 id);
82
83u64 perf_header__sample_type(struct perf_header *header);
84struct perf_event_attr *
85perf_header__find_attr(u64 id, struct perf_header *header);
86void perf_header__set_feat(struct perf_header *self, int feat);
87bool perf_header__has_feat(const struct perf_header *self, int feat);
88
89int perf_header__process_sections(struct perf_header *self, int fd,
90 int (*process)(struct perf_file_section *self,
91 struct perf_header *ph,
92 int feat, int fd));
93
94int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
95 const char *name, bool is_kallsyms);
96int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir);
97
98int event__synthesize_attr(struct perf_event_attr *attr, u16 ids, u64 *id,
99 event__handler_t process,
100 struct perf_session *session);
101int event__synthesize_attrs(struct perf_header *self,
102 event__handler_t process,
103 struct perf_session *session);
104int event__process_attr(event_t *self, struct perf_session *session);
105
106int event__synthesize_event_type(u64 event_id, char *name,
107 event__handler_t process,
108 struct perf_session *session);
109int event__synthesize_event_types(event__handler_t process,
110 struct perf_session *session);
111int event__process_event_type(event_t *self,
112 struct perf_session *session);
113
114int event__synthesize_tracing_data(int fd, struct perf_event_attr *pattrs,
115 int nb_events,
116 event__handler_t process,
117 struct perf_session *session);
118int event__process_tracing_data(event_t *self,
119 struct perf_session *session);
120
121int event__synthesize_build_id(struct dso *pos, u16 misc,
122 event__handler_t process,
123 struct machine *machine,
124 struct perf_session *session);
125int event__process_build_id(event_t *self, struct perf_session *session);
126
127#endif /* __PERF_HEADER_H */