1
2#ifndef __PERF_HEADER_H
3#define __PERF_HEADER_H
4
5#include <linux/stddef.h>
6#include <linux/perf_event.h>
7#include <sys/types.h>
8#include <stdbool.h>
9#include <linux/bitmap.h>
10#include <linux/types.h>
11#include "event.h"
12#include "env.h"
13#include "pmu.h"
14
15enum {
16 HEADER_RESERVED = 0,
17 HEADER_FIRST_FEATURE = 1,
18 HEADER_TRACING_DATA = 1,
19 HEADER_BUILD_ID,
20
21 HEADER_HOSTNAME,
22 HEADER_OSRELEASE,
23 HEADER_VERSION,
24 HEADER_ARCH,
25 HEADER_NRCPUS,
26 HEADER_CPUDESC,
27 HEADER_CPUID,
28 HEADER_TOTAL_MEM,
29 HEADER_CMDLINE,
30 HEADER_EVENT_DESC,
31 HEADER_CPU_TOPOLOGY,
32 HEADER_NUMA_TOPOLOGY,
33 HEADER_BRANCH_STACK,
34 HEADER_PMU_MAPPINGS,
35 HEADER_GROUP_DESC,
36 HEADER_AUXTRACE,
37 HEADER_STAT,
38 HEADER_CACHE,
39 HEADER_SAMPLE_TIME,
40 HEADER_MEM_TOPOLOGY,
41 HEADER_LAST_FEATURE,
42 HEADER_FEAT_BITS = 256,
43};
44
45enum perf_header_version {
46 PERF_HEADER_VERSION_1,
47 PERF_HEADER_VERSION_2,
48};
49
50struct perf_file_section {
51 u64 offset;
52 u64 size;
53};
54
55struct perf_file_header {
56 u64 magic;
57 u64 size;
58 u64 attr_size;
59 struct perf_file_section attrs;
60 struct perf_file_section data;
61
62 struct perf_file_section event_types;
63 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
64};
65
66struct perf_pipe_file_header {
67 u64 magic;
68 u64 size;
69};
70
71struct perf_header;
72
73int perf_file_header__read(struct perf_file_header *header,
74 struct perf_header *ph, int fd);
75
76struct perf_header {
77 enum perf_header_version version;
78 bool needs_swap;
79 u64 data_offset;
80 u64 data_size;
81 u64 feat_offset;
82 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
83 struct perf_env env;
84};
85
86struct perf_evlist;
87struct perf_session;
88
89int perf_session__read_header(struct perf_session *session);
90int perf_session__write_header(struct perf_session *session,
91 struct perf_evlist *evlist,
92 int fd, bool at_exit);
93int perf_header__write_pipe(int fd);
94
95void perf_header__set_feat(struct perf_header *header, int feat);
96void perf_header__clear_feat(struct perf_header *header, int feat);
97bool perf_header__has_feat(const struct perf_header *header, int feat);
98
99int perf_header__set_cmdline(int argc, const char **argv);
100
101int perf_header__process_sections(struct perf_header *header, int fd,
102 void *data,
103 int (*process)(struct perf_file_section *section,
104 struct perf_header *ph,
105 int feat, int fd, void *data));
106
107int perf_header__fprintf_info(struct perf_session *s, FILE *fp, bool full);
108
109int perf_event__synthesize_features(struct perf_tool *tool,
110 struct perf_session *session,
111 struct perf_evlist *evlist,
112 perf_event__handler_t process);
113
114int perf_event__synthesize_extra_attr(struct perf_tool *tool,
115 struct perf_evlist *evsel_list,
116 perf_event__handler_t process,
117 bool is_pipe);
118
119int perf_event__process_feature(struct perf_tool *tool,
120 union perf_event *event,
121 struct perf_session *session);
122
123int perf_event__synthesize_attr(struct perf_tool *tool,
124 struct perf_event_attr *attr, u32 ids, u64 *id,
125 perf_event__handler_t process);
126int perf_event__synthesize_attrs(struct perf_tool *tool,
127 struct perf_session *session,
128 perf_event__handler_t process);
129int perf_event__synthesize_event_update_unit(struct perf_tool *tool,
130 struct perf_evsel *evsel,
131 perf_event__handler_t process);
132int perf_event__synthesize_event_update_scale(struct perf_tool *tool,
133 struct perf_evsel *evsel,
134 perf_event__handler_t process);
135int perf_event__synthesize_event_update_name(struct perf_tool *tool,
136 struct perf_evsel *evsel,
137 perf_event__handler_t process);
138int perf_event__synthesize_event_update_cpus(struct perf_tool *tool,
139 struct perf_evsel *evsel,
140 perf_event__handler_t process);
141int perf_event__process_attr(struct perf_tool *tool, union perf_event *event,
142 struct perf_evlist **pevlist);
143int perf_event__process_event_update(struct perf_tool *tool,
144 union perf_event *event,
145 struct perf_evlist **pevlist);
146size_t perf_event__fprintf_event_update(union perf_event *event, FILE *fp);
147
148int perf_event__synthesize_tracing_data(struct perf_tool *tool,
149 int fd, struct perf_evlist *evlist,
150 perf_event__handler_t process);
151int perf_event__process_tracing_data(struct perf_tool *tool,
152 union perf_event *event,
153 struct perf_session *session);
154
155int perf_event__synthesize_build_id(struct perf_tool *tool,
156 struct dso *pos, u16 misc,
157 perf_event__handler_t process,
158 struct machine *machine);
159int perf_event__process_build_id(struct perf_tool *tool,
160 union perf_event *event,
161 struct perf_session *session);
162bool is_perf_magic(u64 magic);
163
164#define NAME_ALIGN 64
165
166struct feat_fd;
167
168int do_write(struct feat_fd *fd, const void *buf, size_t size);
169
170int write_padded(struct feat_fd *fd, const void *bf,
171 size_t count, size_t count_aligned);
172
173
174
175
176int get_cpuid(char *buffer, size_t sz);
177
178char *get_cpuid_str(struct perf_pmu *pmu __maybe_unused);
179int strcmp_cpuid_str(const char *s1, const char *s2);
180#endif
181
