1#ifndef __PERF_HEADER_H
2#define __PERF_HEADER_H
3
4#include <linux/perf_event.h>
5#include <sys/types.h>
6#include <stdbool.h>
7#include <linux/bitmap.h>
8#include <linux/types.h>
9#include "event.h"
10
11
12enum {
13 HEADER_RESERVED = 0,
14 HEADER_FIRST_FEATURE = 1,
15 HEADER_TRACING_DATA = 1,
16 HEADER_BUILD_ID,
17
18 HEADER_HOSTNAME,
19 HEADER_OSRELEASE,
20 HEADER_VERSION,
21 HEADER_ARCH,
22 HEADER_NRCPUS,
23 HEADER_CPUDESC,
24 HEADER_CPUID,
25 HEADER_TOTAL_MEM,
26 HEADER_CMDLINE,
27 HEADER_EVENT_DESC,
28 HEADER_CPU_TOPOLOGY,
29 HEADER_NUMA_TOPOLOGY,
30 HEADER_BRANCH_STACK,
31 HEADER_PMU_MAPPINGS,
32 HEADER_GROUP_DESC,
33 HEADER_LAST_FEATURE,
34 HEADER_FEAT_BITS = 256,
35};
36
37enum perf_header_version {
38 PERF_HEADER_VERSION_1,
39 PERF_HEADER_VERSION_2,
40};
41
42struct perf_file_section {
43 u64 offset;
44 u64 size;
45};
46
47struct perf_file_header {
48 u64 magic;
49 u64 size;
50 u64 attr_size;
51 struct perf_file_section attrs;
52 struct perf_file_section data;
53
54 struct perf_file_section event_types;
55 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
56};
57
58struct perf_pipe_file_header {
59 u64 magic;
60 u64 size;
61};
62
63struct perf_header;
64
65int perf_file_header__read(struct perf_file_header *header,
66 struct perf_header *ph, int fd);
67
68struct perf_session_env {
69 char *hostname;
70 char *os_release;
71 char *version;
72 char *arch;
73 int nr_cpus_online;
74 int nr_cpus_avail;
75 char *cpu_desc;
76 char *cpuid;
77 unsigned long long total_mem;
78
79 int nr_cmdline;
80 int nr_sibling_cores;
81 int nr_sibling_threads;
82 int nr_numa_nodes;
83 int nr_pmu_mappings;
84 int nr_groups;
85 char *cmdline;
86 char *sibling_cores;
87 char *sibling_threads;
88 char *numa_nodes;
89 char *pmu_mappings;
90};
91
92struct perf_header {
93 enum perf_header_version version;
94 bool needs_swap;
95 u64 data_offset;
96 u64 data_size;
97 u64 feat_offset;
98 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
99 struct perf_session_env env;
100};
101
102struct perf_evlist;
103struct perf_session;
104
105int perf_session__read_header(struct perf_session *session);
106int perf_session__write_header(struct perf_session *session,
107 struct perf_evlist *evlist,
108 int fd, bool at_exit);
109int perf_header__write_pipe(int fd);
110
111void perf_header__set_feat(struct perf_header *header, int feat);
112void perf_header__clear_feat(struct perf_header *header, int feat);
113bool perf_header__has_feat(const struct perf_header *header, int feat);
114
115int perf_header__set_cmdline(int argc, const char **argv);
116
117int perf_header__process_sections(struct perf_header *header, int fd,
118 void *data,
119 int (*process)(struct perf_file_section *section,
120 struct perf_header *ph,
121 int feat, int fd, void *data));
122
123int perf_header__fprintf_info(struct perf_session *s, FILE *fp, bool full);
124
125int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
126 const char *name, bool is_kallsyms, bool is_vdso);
127int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir);
128
129int perf_event__synthesize_attr(struct perf_tool *tool,
130 struct perf_event_attr *attr, u32 ids, u64 *id,
131 perf_event__handler_t process);
132int perf_event__synthesize_attrs(struct perf_tool *tool,
133 struct perf_session *session,
134 perf_event__handler_t process);
135int perf_event__process_attr(struct perf_tool *tool, union perf_event *event,
136 struct perf_evlist **pevlist);
137
138int perf_event__synthesize_tracing_data(struct perf_tool *tool,
139 int fd, struct perf_evlist *evlist,
140 perf_event__handler_t process);
141int perf_event__process_tracing_data(struct perf_tool *tool,
142 union perf_event *event,
143 struct perf_session *session);
144
145int perf_event__synthesize_build_id(struct perf_tool *tool,
146 struct dso *pos, u16 misc,
147 perf_event__handler_t process,
148 struct machine *machine);
149int perf_event__process_build_id(struct perf_tool *tool,
150 union perf_event *event,
151 struct perf_session *session);
152bool is_perf_magic(u64 magic);
153
154int dsos__hit_all(struct perf_session *session);
155
156
157
158
159int get_cpuid(char *buffer, size_t sz);
160
161#endif
162
