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_CLOCKID,
42 HEADER_DIR_FORMAT,
43 HEADER_BPF_PROG_INFO,
44 HEADER_BPF_BTF,
45 HEADER_COMPRESSED,
46 HEADER_LAST_FEATURE,
47 HEADER_FEAT_BITS = 256,
48};
49
50enum perf_header_version {
51 PERF_HEADER_VERSION_1,
52 PERF_HEADER_VERSION_2,
53};
54
55enum perf_dir_version {
56 PERF_DIR_VERSION = 1,
57};
58
59struct perf_file_section {
60 u64 offset;
61 u64 size;
62};
63
64struct perf_file_header {
65 u64 magic;
66 u64 size;
67 u64 attr_size;
68 struct perf_file_section attrs;
69 struct perf_file_section data;
70
71 struct perf_file_section event_types;
72 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
73};
74
75struct perf_pipe_file_header {
76 u64 magic;
77 u64 size;
78};
79
80struct perf_header;
81
82int perf_file_header__read(struct perf_file_header *header,
83 struct perf_header *ph, int fd);
84
85struct perf_header {
86 enum perf_header_version version;
87 bool needs_swap;
88 u64 data_offset;
89 u64 data_size;
90 u64 feat_offset;
91 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
92 struct perf_env env;
93};
94
95struct perf_evlist;
96struct perf_session;
97
98int perf_session__read_header(struct perf_session *session);
99int perf_session__write_header(struct perf_session *session,
100 struct perf_evlist *evlist,
101 int fd, bool at_exit);
102int perf_header__write_pipe(int fd);
103
104void perf_header__set_feat(struct perf_header *header, int feat);
105void perf_header__clear_feat(struct perf_header *header, int feat);
106bool perf_header__has_feat(const struct perf_header *header, int feat);
107
108int perf_header__set_cmdline(int argc, const char **argv);
109
110int perf_header__process_sections(struct perf_header *header, int fd,
111 void *data,
112 int (*process)(struct perf_file_section *section,
113 struct perf_header *ph,
114 int feat, int fd, void *data));
115
116int perf_header__fprintf_info(struct perf_session *s, FILE *fp, bool full);
117
118int perf_event__synthesize_features(struct perf_tool *tool,
119 struct perf_session *session,
120 struct perf_evlist *evlist,
121 perf_event__handler_t process);
122
123int perf_event__synthesize_extra_attr(struct perf_tool *tool,
124 struct perf_evlist *evsel_list,
125 perf_event__handler_t process,
126 bool is_pipe);
127
128int perf_event__process_feature(struct perf_session *session,
129 union perf_event *event);
130
131int perf_event__synthesize_attr(struct perf_tool *tool,
132 struct perf_event_attr *attr, u32 ids, u64 *id,
133 perf_event__handler_t process);
134int perf_event__synthesize_attrs(struct perf_tool *tool,
135 struct perf_evlist *evlist,
136 perf_event__handler_t process);
137int perf_event__synthesize_event_update_unit(struct perf_tool *tool,
138 struct perf_evsel *evsel,
139 perf_event__handler_t process);
140int perf_event__synthesize_event_update_scale(struct perf_tool *tool,
141 struct perf_evsel *evsel,
142 perf_event__handler_t process);
143int perf_event__synthesize_event_update_name(struct perf_tool *tool,
144 struct perf_evsel *evsel,
145 perf_event__handler_t process);
146int perf_event__synthesize_event_update_cpus(struct perf_tool *tool,
147 struct perf_evsel *evsel,
148 perf_event__handler_t process);
149int perf_event__process_attr(struct perf_tool *tool, union perf_event *event,
150 struct perf_evlist **pevlist);
151int perf_event__process_event_update(struct perf_tool *tool,
152 union perf_event *event,
153 struct perf_evlist **pevlist);
154size_t perf_event__fprintf_event_update(union perf_event *event, FILE *fp);
155
156int perf_event__synthesize_tracing_data(struct perf_tool *tool,
157 int fd, struct perf_evlist *evlist,
158 perf_event__handler_t process);
159int perf_event__process_tracing_data(struct perf_session *session,
160 union perf_event *event);
161
162int perf_event__synthesize_build_id(struct perf_tool *tool,
163 struct dso *pos, u16 misc,
164 perf_event__handler_t process,
165 struct machine *machine);
166int perf_event__process_build_id(struct perf_session *session,
167 union perf_event *event);
168bool is_perf_magic(u64 magic);
169
170#define NAME_ALIGN 64
171
172struct feat_fd;
173
174int do_write(struct feat_fd *fd, const void *buf, size_t size);
175
176int write_padded(struct feat_fd *fd, const void *bf,
177 size_t count, size_t count_aligned);
178
179
180
181
182int get_cpuid(char *buffer, size_t sz);
183
184char *get_cpuid_str(struct perf_pmu *pmu __maybe_unused);
185int strcmp_cpuid_str(const char *s1, const char *s2);
186#endif
187
