1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __PERF_HEADER_H 2 #ifndef __PERF_HEADER_H
3 #define __PERF_HEADER_H 3 #define __PERF_HEADER_H
4 4
5 #include <linux/stddef.h> <<
6 #include <linux/perf_event.h> 5 #include <linux/perf_event.h>
7 #include <sys/types.h> 6 #include <sys/types.h>
8 #include <stdio.h> // FILE <<
9 #include <stdbool.h> 7 #include <stdbool.h>
10 #include <linux/bitmap.h> 8 #include <linux/bitmap.h>
11 #include <linux/types.h> 9 #include <linux/types.h>
>> 10 #include "event.h"
12 #include "env.h" 11 #include "env.h"
13 #include "pmu.h" <<
14 12
15 enum { 13 enum {
16 HEADER_RESERVED = 0, /* alw 14 HEADER_RESERVED = 0, /* always cleared */
17 HEADER_FIRST_FEATURE = 1, 15 HEADER_FIRST_FEATURE = 1,
18 HEADER_TRACING_DATA = 1, 16 HEADER_TRACING_DATA = 1,
19 HEADER_BUILD_ID, 17 HEADER_BUILD_ID,
20 18
21 HEADER_HOSTNAME, 19 HEADER_HOSTNAME,
22 HEADER_OSRELEASE, 20 HEADER_OSRELEASE,
23 HEADER_VERSION, 21 HEADER_VERSION,
24 HEADER_ARCH, 22 HEADER_ARCH,
25 HEADER_NRCPUS, 23 HEADER_NRCPUS,
26 HEADER_CPUDESC, 24 HEADER_CPUDESC,
27 HEADER_CPUID, 25 HEADER_CPUID,
28 HEADER_TOTAL_MEM, 26 HEADER_TOTAL_MEM,
29 HEADER_CMDLINE, 27 HEADER_CMDLINE,
30 HEADER_EVENT_DESC, 28 HEADER_EVENT_DESC,
31 HEADER_CPU_TOPOLOGY, 29 HEADER_CPU_TOPOLOGY,
32 HEADER_NUMA_TOPOLOGY, 30 HEADER_NUMA_TOPOLOGY,
33 HEADER_BRANCH_STACK, 31 HEADER_BRANCH_STACK,
34 HEADER_PMU_MAPPINGS, 32 HEADER_PMU_MAPPINGS,
35 HEADER_GROUP_DESC, 33 HEADER_GROUP_DESC,
36 HEADER_AUXTRACE, 34 HEADER_AUXTRACE,
37 HEADER_STAT, 35 HEADER_STAT,
38 HEADER_CACHE, 36 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_CPU_PMU_CAPS, <<
47 HEADER_CLOCK_DATA, <<
48 HEADER_HYBRID_TOPOLOGY, <<
49 HEADER_PMU_CAPS, <<
50 HEADER_LAST_FEATURE, 37 HEADER_LAST_FEATURE,
51 HEADER_FEAT_BITS = 256, 38 HEADER_FEAT_BITS = 256,
52 }; 39 };
53 40
54 enum perf_header_version { 41 enum perf_header_version {
55 PERF_HEADER_VERSION_1, 42 PERF_HEADER_VERSION_1,
56 PERF_HEADER_VERSION_2, 43 PERF_HEADER_VERSION_2,
57 }; 44 };
58 45
59 struct perf_file_section { 46 struct perf_file_section {
60 u64 offset; 47 u64 offset;
61 u64 size; 48 u64 size;
62 }; 49 };
63 50
64 /** <<
65 * struct perf_file_header: Header representat <<
66 */ <<
67 struct perf_file_header { 51 struct perf_file_header {
68 /** @magic: Holds "PERFILE2". */ <<
69 u64 magic; 52 u64 magic;
70 /** @size: Size of this header - sizeo <<
71 u64 size; 53 u64 size;
72 /** <<
73 * @attr_size: Size of attrs entries - <<
74 * sizeof(struct perf_file_section). <<
75 */ <<
76 u64 attr_s 54 u64 attr_size;
77 /** @attrs: Offset and size of file se <<
78 struct perf_file_section attrs; 55 struct perf_file_section attrs;
79 /** @data: Offset and size of file sec <<
80 struct perf_file_section data; 56 struct perf_file_section data;
81 /** @event_types: Ignored. */ !! 57 /* event_types is ignored */
82 struct perf_file_section event_ 58 struct perf_file_section event_types;
83 /** <<
84 * @adds_features: Bitmap of features. <<
85 */ <<
86 DECLARE_BITMAP(adds_features, HEADER_F 59 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
87 }; 60 };
88 61
89 struct perf_pipe_file_header { 62 struct perf_pipe_file_header {
90 u64 magic; 63 u64 magic;
91 u64 size; 64 u64 size;
92 }; 65 };
93 66
94 struct perf_header; 67 struct perf_header;
95 68
96 int perf_file_header__read(struct perf_file_he 69 int perf_file_header__read(struct perf_file_header *header,
97 struct perf_header 70 struct perf_header *ph, int fd);
98 71
99 struct perf_header { 72 struct perf_header {
100 enum perf_header_version versio 73 enum perf_header_version version;
101 bool needs_ 74 bool needs_swap;
102 u64 data_o 75 u64 data_offset;
103 u64 data_s 76 u64 data_size;
104 u64 feat_o 77 u64 feat_offset;
105 DECLARE_BITMAP(adds_features, HEADER_F 78 DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
106 struct perf_env env; 79 struct perf_env env;
107 }; 80 };
108 81
109 struct feat_fd { !! 82 struct perf_evlist;
110 struct perf_header *ph; <<
111 int fd; <<
112 void *buf; /* Eit <<
113 ssize_t offset; <<
114 size_t size; <<
115 struct evsel *events; <<
116 }; <<
117 <<
118 struct perf_header_feature_ops { <<
119 int (*write)(struct feat_fd *ff <<
120 void (*print)(struct feat_fd *ff <<
121 int (*process)(struct feat_fd * <<
122 const char *name; <<
123 bool full_only; <<
124 bool synthesize; <<
125 }; <<
126 <<
127 struct evlist; <<
128 struct perf_session; 83 struct perf_session;
129 struct perf_tool; <<
130 union perf_event; <<
131 <<
132 extern const char perf_version_string[]; <<
133 84
134 int perf_session__read_header(struct perf_sess 85 int perf_session__read_header(struct perf_session *session);
135 int perf_session__write_header(struct perf_ses 86 int perf_session__write_header(struct perf_session *session,
136 struct evlist * !! 87 struct perf_evlist *evlist,
137 int fd, bool at 88 int fd, bool at_exit);
138 int perf_header__write_pipe(int fd); 89 int perf_header__write_pipe(int fd);
139 90
140 /* feat_writer writes a feature section to out <<
141 struct feat_writer { <<
142 int (*write)(struct feat_writer *fw, v <<
143 }; <<
144 <<
145 /* feat_copier copies a feature section using <<
146 struct feat_copier { <<
147 int (*copy)(struct feat_copier *fc, in <<
148 }; <<
149 <<
150 int perf_session__inject_header(struct perf_se <<
151 struct evlist <<
152 int fd, <<
153 struct feat_co <<
154 bool write_att <<
155 <<
156 size_t perf_session__data_offset(const struct <<
157 <<
158 void perf_header__set_feat(struct perf_header 91 void perf_header__set_feat(struct perf_header *header, int feat);
159 void perf_header__clear_feat(struct perf_heade 92 void perf_header__clear_feat(struct perf_header *header, int feat);
160 bool perf_header__has_feat(const struct perf_h 93 bool perf_header__has_feat(const struct perf_header *header, int feat);
161 94
162 int perf_header__set_cmdline(int argc, const c 95 int perf_header__set_cmdline(int argc, const char **argv);
163 96
164 int perf_header__process_sections(struct perf_ 97 int perf_header__process_sections(struct perf_header *header, int fd,
165 void *data, 98 void *data,
166 int (*proces 99 int (*process)(struct perf_file_section *section,
167 struct perf_ 100 struct perf_header *ph,
168 int feat, in 101 int feat, int fd, void *data));
169 102
170 int perf_header__fprintf_info(struct perf_sess 103 int perf_header__fprintf_info(struct perf_session *s, FILE *fp, bool full);
171 104
172 int perf_event__process_feature(struct perf_se !! 105 int perf_event__synthesize_features(struct perf_tool *tool,
173 union perf_eve !! 106 struct perf_session *session,
174 int perf_event__process_attr(const struct perf !! 107 struct perf_evlist *evlist,
175 struct evlist **p !! 108 perf_event__handler_t process);
176 int perf_event__process_event_update(const str !! 109
>> 110 int perf_event__process_feature(struct perf_tool *tool,
>> 111 union perf_event *event,
>> 112 struct perf_session *session);
>> 113
>> 114 int perf_event__synthesize_attr(struct perf_tool *tool,
>> 115 struct perf_event_attr *attr, u32 ids, u64 *id,
>> 116 perf_event__handler_t process);
>> 117 int perf_event__synthesize_attrs(struct perf_tool *tool,
>> 118 struct perf_session *session,
>> 119 perf_event__handler_t process);
>> 120 int perf_event__synthesize_event_update_unit(struct perf_tool *tool,
>> 121 struct perf_evsel *evsel,
>> 122 perf_event__handler_t process);
>> 123 int perf_event__synthesize_event_update_scale(struct perf_tool *tool,
>> 124 struct perf_evsel *evsel,
>> 125 perf_event__handler_t process);
>> 126 int perf_event__synthesize_event_update_name(struct perf_tool *tool,
>> 127 struct perf_evsel *evsel,
>> 128 perf_event__handler_t process);
>> 129 int perf_event__synthesize_event_update_cpus(struct perf_tool *tool,
>> 130 struct perf_evsel *evsel,
>> 131 perf_event__handler_t process);
>> 132 int perf_event__process_attr(struct perf_tool *tool, union perf_event *event,
>> 133 struct perf_evlist **pevlist);
>> 134 int perf_event__process_event_update(struct perf_tool *tool,
177 union per 135 union perf_event *event,
178 struct ev !! 136 struct perf_evlist **pevlist);
179 size_t perf_event__fprintf_event_update(union 137 size_t perf_event__fprintf_event_update(union perf_event *event, FILE *fp);
180 #ifdef HAVE_LIBTRACEEVENT !! 138
181 int perf_event__process_tracing_data(struct pe !! 139 int perf_event__synthesize_tracing_data(struct perf_tool *tool,
182 union per !! 140 int fd, struct perf_evlist *evlist,
183 #endif !! 141 perf_event__handler_t process);
184 int perf_event__process_build_id(struct perf_s !! 142 int perf_event__process_tracing_data(struct perf_tool *tool,
185 union perf_ev !! 143 union perf_event *event,
>> 144 struct perf_session *session);
>> 145
>> 146 int perf_event__synthesize_build_id(struct perf_tool *tool,
>> 147 struct dso *pos, u16 misc,
>> 148 perf_event__handler_t process,
>> 149 struct machine *machine);
>> 150 int perf_event__process_build_id(struct perf_tool *tool,
>> 151 union perf_event *event,
>> 152 struct perf_session *session);
186 bool is_perf_magic(u64 magic); 153 bool is_perf_magic(u64 magic);
187 154
188 #define NAME_ALIGN 64 155 #define NAME_ALIGN 64
189 156
190 struct feat_fd; 157 struct feat_fd;
191 158
192 int do_write(struct feat_fd *fd, const void *b 159 int do_write(struct feat_fd *fd, const void *buf, size_t size);
193 160
194 int write_padded(struct feat_fd *fd, const voi 161 int write_padded(struct feat_fd *fd, const void *bf,
195 size_t count, size_t count_al 162 size_t count, size_t count_aligned);
196 163
197 #define MAX_CACHE_LVL 4 <<
198 <<
199 int is_cpu_online(unsigned int cpu); <<
200 int build_caches_for_cpu(u32 cpu, struct cpu_c <<
201 <<
202 /* 164 /*
203 * arch specific callback 165 * arch specific callback
204 */ 166 */
205 int get_cpuid(char *buffer, size_t sz); 167 int get_cpuid(char *buffer, size_t sz);
206 168
207 char *get_cpuid_str(struct perf_pmu *pmu __may !! 169 char *get_cpuid_str(void);
208 int strcmp_cpuid_str(const char *s1, const cha <<
209 #endif /* __PERF_HEADER_H */ 170 #endif /* __PERF_HEADER_H */
210 171
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