tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
fork
Configure Feed
Select the types of activity you want to include in your feed.
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
9#include <linux/bitmap.h>
10
11struct perf_header_attr {
12 struct perf_event_attr attr;
13 int ids, size;
14 u64 *id;
15 off_t id_offset;
16};
17
18enum {
19 HEADER_TRACE_INFO = 1,
20 HEADER_BUILD_ID,
21 HEADER_LAST_FEATURE,
22};
23
24#define HEADER_FEAT_BITS 256
25
26struct perf_file_section {
27 u64 offset;
28 u64 size;
29};
30
31struct perf_file_header {
32 u64 magic;
33 u64 size;
34 u64 attr_size;
35 struct perf_file_section attrs;
36 struct perf_file_section data;
37 struct perf_file_section event_types;
38 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
39};
40
41struct perf_header;
42
43int perf_file_header__read(struct perf_file_header *self,
44 struct perf_header *ph, int fd);
45
46struct perf_header {
47 int frozen;
48 int attrs, size;
49 struct perf_header_attr **attr;
50 s64 attr_offset;
51 u64 data_offset;
52 u64 data_size;
53 u64 event_offset;
54 u64 event_size;
55 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
56};
57
58int perf_header__init(struct perf_header *self);
59void perf_header__exit(struct perf_header *self);
60
61int perf_header__read(struct perf_header *self, int fd);
62int perf_header__write(struct perf_header *self, int fd, bool at_exit);
63
64int perf_header__add_attr(struct perf_header *self,
65 struct perf_header_attr *attr);
66
67void perf_header__push_event(u64 id, const char *name);
68char *perf_header__find_event(u64 id);
69
70struct perf_header_attr *perf_header_attr__new(struct perf_event_attr *attr);
71void perf_header_attr__delete(struct perf_header_attr *self);
72
73int perf_header_attr__add_id(struct perf_header_attr *self, u64 id);
74
75u64 perf_header__sample_type(struct perf_header *header);
76struct perf_event_attr *
77perf_header__find_attr(u64 id, struct perf_header *header);
78void perf_header__set_feat(struct perf_header *self, int feat);
79bool perf_header__has_feat(const struct perf_header *self, int feat);
80
81int perf_header__process_sections(struct perf_header *self, int fd,
82 int (*process)(struct perf_file_section *self,
83 int feat, int fd));
84
85#endif /* __PERF_HEADER_H */