Commit | Line | Data |
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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
8b40f521 JK |
2 | #ifndef __PERF_HEADER_H |
3 | #define __PERF_HEADER_H | |
7c6a1c65 | 4 | |
44fe619b | 5 | #include <linux/stddef.h> |
d2709c7c | 6 | #include <linux/perf_event.h> |
7c6a1c65 | 7 | #include <sys/types.h> |
27830616 | 8 | #include <stdio.h> // FILE |
8d06367f | 9 | #include <stdbool.h> |
d944c4ee BP |
10 | #include <linux/bitmap.h> |
11 | #include <linux/types.h> | |
f0ce888c | 12 | #include "env.h" |
54e32dc0 | 13 | #include "pmu.h" |
db9f11e3 | 14 | |
37562eac | 15 | enum { |
b1e5a9be | 16 | HEADER_RESERVED = 0, /* always cleared */ |
781ba9d2 | 17 | HEADER_FIRST_FEATURE = 1, |
2eeaaa09 | 18 | HEADER_TRACING_DATA = 1, |
37562eac | 19 | HEADER_BUILD_ID, |
fbe96f29 SE |
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, | |
330aa675 | 33 | HEADER_BRANCH_STACK, |
50a9667c | 34 | HEADER_PMU_MAPPINGS, |
a8bb559b | 35 | HEADER_GROUP_DESC, |
4025ea40 | 36 | HEADER_AUXTRACE, |
ffa517ad | 37 | HEADER_STAT, |
720e98b5 | 38 | HEADER_CACHE, |
6011518d | 39 | HEADER_SAMPLE_TIME, |
e2091ced | 40 | HEADER_MEM_TOPOLOGY, |
cf790516 | 41 | HEADER_CLOCKID, |
258031c0 | 42 | HEADER_DIR_FORMAT, |
606f972b | 43 | HEADER_BPF_PROG_INFO, |
a70a1123 | 44 | HEADER_BPF_BTF, |
42e1fd80 | 45 | HEADER_COMPRESSED, |
6f91ea28 | 46 | HEADER_CPU_PMU_CAPS, |
d1e325cf | 47 | HEADER_CLOCK_DATA, |
f7d74ce3 | 48 | HEADER_HYBRID_TOPOLOGY, |
2139f742 | 49 | HEADER_PMU_CAPS, |
37562eac | 50 | HEADER_LAST_FEATURE, |
b1e5a9be | 51 | HEADER_FEAT_BITS = 256, |
37562eac | 52 | }; |
2ba08250 | 53 | |
2a08c3ec JO |
54 | enum perf_header_version { |
55 | PERF_HEADER_VERSION_1, | |
56 | PERF_HEADER_VERSION_2, | |
57 | }; | |
58 | ||
37562eac ACM |
59 | struct perf_file_section { |
60 | u64 offset; | |
61 | u64 size; | |
62 | }; | |
63 | ||
64 | struct 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; | |
44b3c578 | 70 | /* event_types is ignored */ |
37562eac ACM |
71 | struct perf_file_section event_types; |
72 | DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS); | |
73 | }; | |
74 | ||
8dc58101 TZ |
75 | struct perf_pipe_file_header { |
76 | u64 magic; | |
77 | u64 size; | |
78 | }; | |
79 | ||
37562eac ACM |
80 | struct perf_header; |
81 | ||
1c0b04d1 | 82 | int perf_file_header__read(struct perf_file_header *header, |
37562eac ACM |
83 | struct perf_header *ph, int fd); |
84 | ||
7c6a1c65 | 85 | struct perf_header { |
2a08c3ec JO |
86 | enum perf_header_version version; |
87 | bool needs_swap; | |
88 | u64 data_offset; | |
89 | u64 data_size; | |
90 | u64 feat_offset; | |
db9f11e3 | 91 | DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS); |
ce80d3be | 92 | struct perf_env env; |
7c6a1c65 PZ |
93 | }; |
94 | ||
055c67ed ACM |
95 | struct feat_fd { |
96 | struct perf_header *ph; | |
97 | int fd; | |
98 | void *buf; /* Either buf != NULL or fd >= 0 */ | |
99 | ssize_t offset; | |
100 | size_t size; | |
101 | struct evsel *events; | |
102 | }; | |
103 | ||
104 | struct perf_header_feature_ops { | |
105 | int (*write)(struct feat_fd *ff, struct evlist *evlist); | |
106 | void (*print)(struct feat_fd *ff, FILE *fp); | |
107 | int (*process)(struct feat_fd *ff, void *data); | |
108 | const char *name; | |
109 | bool full_only; | |
110 | bool synthesize; | |
111 | }; | |
112 | ||
63503dba | 113 | struct evlist; |
d20deb64 | 114 | struct perf_session; |
27830616 ACM |
115 | struct perf_tool; |
116 | union perf_event; | |
361c99a6 | 117 | |
8641661c IR |
118 | extern const char perf_version_string[]; |
119 | ||
0ae03893 | 120 | int perf_session__read_header(struct perf_session *session, int repipe_fd); |
a91e5431 | 121 | int perf_session__write_header(struct perf_session *session, |
63503dba | 122 | struct evlist *evlist, |
a91e5431 | 123 | int fd, bool at_exit); |
8dc58101 | 124 | int perf_header__write_pipe(int fd); |
7c6a1c65 | 125 | |
237c96b8 AH |
126 | /* feat_writer writes a feature section to output */ |
127 | struct feat_writer { | |
128 | int (*write)(struct feat_writer *fw, void *buf, size_t sz); | |
129 | }; | |
130 | ||
131 | /* feat_copier copies a feature section using feat_writer to output */ | |
132 | struct feat_copier { | |
133 | int (*copy)(struct feat_copier *fc, int feat, struct feat_writer *fw); | |
134 | }; | |
135 | ||
180b3d06 AH |
136 | int perf_session__inject_header(struct perf_session *session, |
137 | struct evlist *evlist, | |
138 | int fd, | |
139 | struct feat_copier *fc); | |
140 | ||
37ed2cdd RS |
141 | size_t perf_session__data_offset(const struct evlist *evlist); |
142 | ||
1c0b04d1 ACM |
143 | void perf_header__set_feat(struct perf_header *header, int feat); |
144 | void perf_header__clear_feat(struct perf_header *header, int feat); | |
145 | bool perf_header__has_feat(const struct perf_header *header, int feat); | |
7c6a1c65 | 146 | |
fbe96f29 SE |
147 | int perf_header__set_cmdline(int argc, const char **argv); |
148 | ||
1c0b04d1 | 149 | int perf_header__process_sections(struct perf_header *header, int fd, |
fbe96f29 | 150 | void *data, |
1c0b04d1 | 151 | int (*process)(struct perf_file_section *section, |
fbe96f29 SE |
152 | struct perf_header *ph, |
153 | int feat, int fd, void *data)); | |
154 | ||
155 | int perf_header__fprintf_info(struct perf_session *s, FILE *fp, bool full); | |
37562eac | 156 | |
89f1688a JO |
157 | int perf_event__process_feature(struct perf_session *session, |
158 | union perf_event *event); | |
47c3d109 | 159 | int perf_event__process_attr(struct perf_tool *tool, union perf_event *event, |
63503dba | 160 | struct evlist **pevlist); |
b8f8eb84 | 161 | int perf_event__process_event_update(struct perf_tool *tool, |
ffe77725 | 162 | union perf_event *event, |
63503dba | 163 | struct evlist **pevlist); |
c853f939 | 164 | size_t perf_event__fprintf_event_update(union perf_event *event, FILE *fp); |
378ef0f5 | 165 | #ifdef HAVE_LIBTRACEEVENT |
89f1688a JO |
166 | int perf_event__process_tracing_data(struct perf_session *session, |
167 | union perf_event *event); | |
378ef0f5 | 168 | #endif |
89f1688a JO |
169 | int perf_event__process_build_id(struct perf_session *session, |
170 | union perf_event *event); | |
e84ba4e2 | 171 | bool is_perf_magic(u64 magic); |
fbe96f29 | 172 | |
e195fac8 NK |
173 | #define NAME_ALIGN 64 |
174 | ||
ccebbeb6 | 175 | struct feat_fd; |
3b8f51a6 | 176 | |
ccebbeb6 DCC |
177 | int do_write(struct feat_fd *fd, const void *buf, size_t size); |
178 | ||
179 | int write_padded(struct feat_fd *fd, const void *bf, | |
180 | size_t count, size_t count_aligned); | |
1f625b0b | 181 | |
2b72cec9 PN |
182 | #define MAX_CACHE_LVL 4 |
183 | ||
8cb7a188 | 184 | int is_cpu_online(unsigned int cpu); |
2b72cec9 PN |
185 | int build_caches_for_cpu(u32 cpu, struct cpu_cache_level caches[], u32 *cntp); |
186 | ||
fbe96f29 SE |
187 | /* |
188 | * arch specific callback | |
189 | */ | |
190 | int get_cpuid(char *buffer, size_t sz); | |
191 | ||
54e32dc0 | 192 | char *get_cpuid_str(struct perf_pmu *pmu __maybe_unused); |
4cb7d3ec | 193 | int strcmp_cpuid_str(const char *s1, const char *s2); |
8b40f521 | 194 | #endif /* __PERF_HEADER_H */ |