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_AUXTRACE,
34 HEADER_LAST_FEATURE,
35 HEADER_FEAT_BITS = 256,
36};
37
38enum perf_header_version {
39 PERF_HEADER_VERSION_1,
40 PERF_HEADER_VERSION_2,
41};
42
43struct perf_file_section {
44 u64 offset;
45 u64 size;
46};
47
48struct perf_file_header {
49 u64 magic;
50 u64 size;
51 u64 attr_size;
52 struct perf_file_section attrs;
53 struct perf_file_section data;
54
55 struct perf_file_section event_types;
56 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
57};
58
59struct perf_pipe_file_header {
60 u64 magic;
61 u64 size;
62};
63
64struct perf_header;
65
66int perf_file_header__read(struct perf_file_header *header,
67 struct perf_header *ph, int fd);
68
69struct perf_env {
70 char *hostname;
71 char *os_release;
72 char *version;
73 char *arch;
74 int nr_cpus_online;
75 int nr_cpus_avail;
76 char *cpu_desc;
77 char *cpuid;
78 unsigned long long total_mem;
79
80 int nr_cmdline;
81 int nr_sibling_cores;
82 int nr_sibling_threads;
83 int nr_numa_nodes;
84 int nr_pmu_mappings;
85 int nr_groups;
86 char *cmdline;
87 const char **cmdline_argv;
88 char *sibling_cores;
89 char *sibling_threads;
90 char *numa_nodes;
91 char *pmu_mappings;
92};
93
94struct perf_header {
95 enum perf_header_version version;
96 bool needs_swap;
97 u64 data_offset;
98 u64 data_size;
99 u64 feat_offset;
100 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
101 struct perf_env env;
102};
103
104struct perf_evlist;
105struct perf_session;
106
107int perf_session__read_header(struct perf_session *session);
108int perf_session__write_header(struct perf_session *session,
109 struct perf_evlist *evlist,
110 int fd, bool at_exit);
111int perf_header__write_pipe(int fd);
112
113void perf_header__set_feat(struct perf_header *header, int feat);
114void perf_header__clear_feat(struct perf_header *header, int feat);
115bool perf_header__has_feat(const struct perf_header *header, int feat);
116
117int perf_header__set_cmdline(int argc, const char **argv);
118
119int perf_header__process_sections(struct perf_header *header, int fd,
120 void *data,
121 int (*process)(struct perf_file_section *section,
122 struct perf_header *ph,
123 int feat, int fd, void *data));
124
125int perf_header__fprintf_info(struct perf_session *s, FILE *fp, bool full);
126
127int perf_event__synthesize_attr(struct perf_tool *tool,
128 struct perf_event_attr *attr, u32 ids, u64 *id,
129 perf_event__handler_t process);
130int perf_event__synthesize_attrs(struct perf_tool *tool,
131 struct perf_session *session,
132 perf_event__handler_t process);
133int perf_event__process_attr(struct perf_tool *tool, union perf_event *event,
134 struct perf_evlist **pevlist);
135
136int perf_event__synthesize_tracing_data(struct perf_tool *tool,
137 int fd, struct perf_evlist *evlist,
138 perf_event__handler_t process);
139int perf_event__process_tracing_data(struct perf_tool *tool,
140 union perf_event *event,
141 struct perf_session *session);
142
143int perf_event__synthesize_build_id(struct perf_tool *tool,
144 struct dso *pos, u16 misc,
145 perf_event__handler_t process,
146 struct machine *machine);
147int perf_event__process_build_id(struct perf_tool *tool,
148 union perf_event *event,
149 struct perf_session *session);
150bool is_perf_magic(u64 magic);
151
152#define NAME_ALIGN 64
153
154int write_padded(int fd, const void *bf, size_t count, size_t count_aligned);
155
156
157
158
159int get_cpuid(char *buffer, size_t sz);
160
161#endif
162
