summaryrefslogtreecommitdiffstats
path: root/tools/perf/util/header.h
blob: 3d5a742f4a2aee485021c962b8218adc4d74e4a5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
#ifndef __PERF_HEADER_H
#define __PERF_HEADER_H

#include "../../../include/linux/perf_event.h"
#include <sys/types.h>
#include <stdbool.h>
#include "types.h"
#include "event.h"

#include <linux/bitmap.h>

enum {
	HEADER_TRACE_INFO = 1,
	HEADER_BUILD_ID,

	HEADER_HOSTNAME,
	HEADER_OSRELEASE,
	HEADER_VERSION,
	HEADER_ARCH,
	HEADER_NRCPUS,
	HEADER_CPUDESC,
	HEADER_CPUID,
	HEADER_TOTAL_MEM,
	HEADER_CMDLINE,
	HEADER_EVENT_DESC,
	HEADER_CPU_TOPOLOGY,
	HEADER_NUMA_TOPOLOGY,

	HEADER_LAST_FEATURE,
};

#define HEADER_FEAT_BITS			256

struct perf_file_section {
	u64 offset;
	u64 size;
};

struct perf_file_header {
	u64				magic;
	u64				size;
	u64				attr_size;
	struct perf_file_section	attrs;
	struct perf_file_section	data;
	struct perf_file_section	event_types;
	DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
};

struct perf_pipe_file_header {
	u64				magic;
	u64				size;
};

struct perf_header;

int perf_file_header__read(struct perf_file_header *header,
			   struct perf_header *ph, int fd);

struct perf_header {
	int			frozen;
	bool			needs_swap;
	s64			attr_offset;
	u64			data_offset;
	u64			data_size;
	u64			event_offset;
	u64			event_size;
	DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
};

struct perf_evlist;

int perf_session__read_header(struct perf_session *session, int fd);
int perf_session__write_header(struct perf_session *session,
			       struct perf_evlist *evlist,
			       int fd, bool at_exit);
int perf_header__write_pipe(int fd);

int perf_header__push_event(u64 id, const char *name);
char *perf_header__find_event(u64 id);

void perf_header__set_feat(struct perf_header *header, int feat);
void perf_header__clear_feat(struct perf_header *header, int feat);
bool perf_header__has_feat(const struct perf_header *header, int feat);

int perf_header__set_cmdline(int argc, const char **argv);

int perf_header__process_sections(struct perf_header *header, int fd,
				  void *data,
				  int (*process)(struct perf_file_section *section,
				  struct perf_header *ph,
				  int feat, int fd, void *data));

int perf_header__fprintf_info(struct perf_session *s, FILE *fp, bool full);

int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
			  const char *name, bool is_kallsyms);
int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir);

int perf_event__synthesize_attr(struct perf_event_attr *attr, u16 ids, u64 *id,
				perf_event__handler_t process,
				struct perf_session *session);
int perf_session__synthesize_attrs(struct perf_session *session,
				   perf_event__handler_t process);
int perf_event__process_attr(union perf_event *event, struct perf_session *session);

int perf_event__synthesize_event_type(u64 event_id, char *name,
				      perf_event__handler_t process,
				      struct perf_session *session);
int perf_event__synthesize_event_types(perf_event__handler_t process,
				       struct perf_session *session);
int perf_event__process_event_type(union perf_event *event,
				   struct perf_session *session);

int perf_event__synthesize_tracing_data(int fd, struct perf_evlist *evlist,
					perf_event__handler_t process,
					struct perf_session *session);
int perf_event__process_tracing_data(union perf_event *event,
				     struct perf_session *session);

int perf_event__synthesize_build_id(struct dso *pos, u16 misc,
				    perf_event__handler_t process,
				    struct machine *machine,
				    struct perf_session *session);
int perf_event__process_build_id(union perf_event *event,
				 struct perf_session *session);

/*
 * arch specific callback
 */
int get_cpuid(char *buffer, size_t sz);

#endif /* __PERF_HEADER_H */