1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __LIBPERF_EVENT_H 3 #define __LIBPERF_EVENT_H 4 5 #include <linux/perf_event.h> 6 #include <linux/types.h> 7 #include <linux/limits.h> 8 #include <linux/bpf.h> 9 #include <sys/types.h> /* pid_t */ 10 11 #define event_contains(obj, mem) ((obj).header.size > offsetof(typeof(obj), mem)) 12 13 struct perf_record_mmap { 14 struct perf_event_header header; 15 __u32 pid, tid; 16 __u64 start; 17 __u64 len; 18 __u64 pgoff; 19 char filename[PATH_MAX]; 20 }; 21 22 struct perf_record_mmap2 { 23 struct perf_event_header header; 24 __u32 pid, tid; 25 __u64 start; 26 __u64 len; 27 __u64 pgoff; 28 union { 29 struct { 30 __u32 maj; 31 __u32 min; 32 __u64 ino; 33 __u64 ino_generation; 34 }; 35 struct { 36 __u8 build_id_size; 37 __u8 __reserved_1; 38 __u16 __reserved_2; 39 __u8 build_id[20]; 40 }; 41 }; 42 __u32 prot; 43 __u32 flags; 44 char filename[PATH_MAX]; 45 }; 46 47 struct perf_record_comm { 48 struct perf_event_header header; 49 __u32 pid, tid; 50 char comm[16]; 51 }; 52 53 struct perf_record_namespaces { 54 struct perf_event_header header; 55 __u32 pid, tid; 56 __u64 nr_namespaces; 57 struct perf_ns_link_info link_info[]; 58 }; 59 60 struct perf_record_fork { 61 struct perf_event_header header; 62 __u32 pid, ppid; 63 __u32 tid, ptid; 64 __u64 time; 65 }; 66 67 struct perf_record_lost { 68 struct perf_event_header header; 69 __u64 id; 70 __u64 lost; 71 }; 72 73 #define PERF_RECORD_MISC_LOST_SAMPLES_BPF (1 << 15) 74 75 struct perf_record_lost_samples { 76 struct perf_event_header header; 77 __u64 lost; 78 }; 79 80 /* 81 * PERF_FORMAT_ENABLED | PERF_FORMAT_RUNNING | PERF_FORMAT_ID | PERF_FORMAT_LOST 82 */ 83 struct perf_record_read { 84 struct perf_event_header header; 85 __u32 pid, tid; 86 __u64 value; 87 __u64 time_enabled; 88 __u64 time_running; 89 __u64 id; 90 __u64 lost; 91 }; 92 93 struct perf_record_throttle { 94 struct perf_event_header header; 95 __u64 time; 96 __u64 id; 97 __u64 stream_id; 98 }; 99 100 #ifndef KSYM_NAME_LEN 101 #define KSYM_NAME_LEN 512 102 #endif 103 104 struct perf_record_ksymbol { 105 struct perf_event_header header; 106 __u64 addr; 107 __u32 len; 108 __u16 ksym_type; 109 __u16 flags; 110 char name[KSYM_NAME_LEN]; 111 }; 112 113 struct perf_record_bpf_event { 114 struct perf_event_header header; 115 __u16 type; 116 __u16 flags; 117 __u32 id; 118 119 /* for bpf_prog types */ 120 __u8 tag[BPF_TAG_SIZE]; // prog tag 121 }; 122 123 struct perf_record_cgroup { 124 struct perf_event_header header; 125 __u64 id; 126 char path[PATH_MAX]; 127 }; 128 129 struct perf_record_text_poke_event { 130 struct perf_event_header header; 131 __u64 addr; 132 __u16 old_len; 133 __u16 new_len; 134 __u8 bytes[]; 135 }; 136 137 struct perf_record_sample { 138 struct perf_event_header header; 139 __u64 array[]; 140 }; 141 142 struct perf_record_switch { 143 struct perf_event_header header; 144 __u32 next_prev_pid; 145 __u32 next_prev_tid; 146 }; 147 148 struct perf_record_header_attr { 149 struct perf_event_header header; 150 struct perf_event_attr attr; 151 __u64 id[]; 152 }; 153 154 enum { 155 PERF_CPU_MAP__CPUS = 0, 156 PERF_CPU_MAP__MASK = 1, 157 PERF_CPU_MAP__RANGE_CPUS = 2, 158 }; 159 160 /* 161 * Array encoding of a perf_cpu_map where nr is the number of entries in cpu[] 162 * and each entry is a value for a CPU in the map. 163 */ 164 struct cpu_map_entries { 165 __u16 nr; 166 __u16 cpu[]; 167 }; 168 169 /* Bitmap encoding of a perf_cpu_map where bitmap entries are 32-bit. */ 170 struct perf_record_mask_cpu_map32 { 171 /* Number of mask values. */ 172 __u16 nr; 173 /* Constant 4. */ 174 __u16 long_size; 175 /* Bitmap data. */ 176 __u32 mask[]; 177 }; 178 179 /* Bitmap encoding of a perf_cpu_map where bitmap entries are 64-bit. */ 180 struct perf_record_mask_cpu_map64 { 181 /* Number of mask values. */ 182 __u16 nr; 183 /* Constant 8. */ 184 __u16 long_size; 185 /* Legacy padding. */ 186 char __pad[4]; 187 /* Bitmap data. */ 188 __u64 mask[]; 189 }; 190 191 /* 192 * 'struct perf_record_cpu_map_data' is packed as unfortunately an earlier 193 * version had unaligned data and we wish to retain file format compatibility. 194 * -irogers 195 */ 196 #pragma GCC diagnostic push 197 #pragma GCC diagnostic ignored "-Wpacked" 198 #pragma GCC diagnostic ignored "-Wattributes" 199 200 /* 201 * An encoding of a CPU map for a range starting at start_cpu through to 202 * end_cpu. If any_cpu is 1, an any CPU (-1) value (aka dummy value) is present. 203 */ 204 struct perf_record_range_cpu_map { 205 __u8 any_cpu; 206 __u8 __pad; 207 __u16 start_cpu; 208 __u16 end_cpu; 209 }; 210 211 struct perf_record_cpu_map_data { 212 __u16 type; 213 union { 214 /* Used when type == PERF_CPU_MAP__CPUS. */ 215 struct cpu_map_entries cpus_data; 216 /* Used when type == PERF_CPU_MAP__MASK and long_size == 4. */ 217 struct perf_record_mask_cpu_map32 mask32_data; 218 /* Used when type == PERF_CPU_MAP__MASK and long_size == 8. */ 219 struct perf_record_mask_cpu_map64 mask64_data; 220 /* Used when type == PERF_CPU_MAP__RANGE_CPUS. */ 221 struct perf_record_range_cpu_map range_cpu_data; 222 }; 223 } __attribute__((packed)); 224 225 #pragma GCC diagnostic pop 226 227 struct perf_record_cpu_map { 228 struct perf_event_header header; 229 struct perf_record_cpu_map_data data; 230 }; 231 232 enum { 233 PERF_EVENT_UPDATE__UNIT = 0, 234 PERF_EVENT_UPDATE__SCALE = 1, 235 PERF_EVENT_UPDATE__NAME = 2, 236 PERF_EVENT_UPDATE__CPUS = 3, 237 }; 238 239 struct perf_record_event_update_cpus { 240 struct perf_record_cpu_map_data cpus; 241 }; 242 243 struct perf_record_event_update_scale { 244 double scale; 245 }; 246 247 struct perf_record_event_update { 248 struct perf_event_header header; 249 __u64 type; 250 __u64 id; 251 union { 252 /* Used when type == PERF_EVENT_UPDATE__SCALE. */ 253 struct perf_record_event_update_scale scale; 254 /* Used when type == PERF_EVENT_UPDATE__UNIT. */ 255 char unit[0]; 256 /* Used when type == PERF_EVENT_UPDATE__NAME. */ 257 char name[0]; 258 /* Used when type == PERF_EVENT_UPDATE__CPUS. */ 259 struct perf_record_event_update_cpus cpus; 260 }; 261 }; 262 263 #define MAX_EVENT_NAME 64 264 265 struct perf_trace_event_type { 266 __u64 event_id; 267 char name[MAX_EVENT_NAME]; 268 }; 269 270 struct perf_record_header_event_type { 271 struct perf_event_header header; 272 struct perf_trace_event_type event_type; 273 }; 274 275 struct perf_record_header_tracing_data { 276 struct perf_event_header header; 277 __u32 size; 278 }; 279 280 #define PERF_RECORD_MISC_BUILD_ID_SIZE (1 << 15) 281 282 struct perf_record_header_build_id { 283 struct perf_event_header header; 284 pid_t pid; 285 union { 286 __u8 build_id[24]; 287 struct { 288 __u8 data[20]; 289 __u8 size; 290 __u8 reserved1__; 291 __u16 reserved2__; 292 }; 293 }; 294 char filename[]; 295 }; 296 297 struct id_index_entry { 298 __u64 id; 299 __u64 idx; 300 __u64 cpu; 301 __u64 tid; 302 }; 303 304 struct id_index_entry_2 { 305 __u64 machine_pid; 306 __u64 vcpu; 307 }; 308 309 struct perf_record_id_index { 310 struct perf_event_header header; 311 __u64 nr; 312 struct id_index_entry entries[]; 313 }; 314 315 struct perf_record_auxtrace_info { 316 struct perf_event_header header; 317 __u32 type; 318 __u32 reserved__; /* For alignment */ 319 __u64 priv[]; 320 }; 321 322 struct perf_record_auxtrace { 323 struct perf_event_header header; 324 __u64 size; 325 __u64 offset; 326 __u64 reference; 327 __u32 idx; 328 __u32 tid; 329 __u32 cpu; 330 __u32 reserved__; /* For alignment */ 331 }; 332 333 #define MAX_AUXTRACE_ERROR_MSG 64 334 335 struct perf_record_auxtrace_error { 336 struct perf_event_header header; 337 __u32 type; 338 __u32 code; 339 __u32 cpu; 340 __u32 pid; 341 __u32 tid; 342 __u32 fmt; 343 __u64 ip; 344 __u64 time; 345 char msg[MAX_AUXTRACE_ERROR_MSG]; 346 __u32 machine_pid; 347 __u32 vcpu; 348 }; 349 350 struct perf_record_aux { 351 struct perf_event_header header; 352 __u64 aux_offset; 353 __u64 aux_size; 354 __u64 flags; 355 }; 356 357 struct perf_record_itrace_start { 358 struct perf_event_header header; 359 __u32 pid; 360 __u32 tid; 361 }; 362 363 struct perf_record_aux_output_hw_id { 364 struct perf_event_header header; 365 __u64 hw_id; 366 }; 367 368 struct perf_record_thread_map_entry { 369 __u64 pid; 370 char comm[16]; 371 }; 372 373 struct perf_record_thread_map { 374 struct perf_event_header header; 375 __u64 nr; 376 struct perf_record_thread_map_entry entries[]; 377 }; 378 379 enum { 380 PERF_STAT_CONFIG_TERM__AGGR_MODE = 0, 381 PERF_STAT_CONFIG_TERM__INTERVAL = 1, 382 PERF_STAT_CONFIG_TERM__SCALE = 2, 383 PERF_STAT_CONFIG_TERM__MAX = 3, 384 }; 385 386 struct perf_record_stat_config_entry { 387 __u64 tag; 388 __u64 val; 389 }; 390 391 struct perf_record_stat_config { 392 struct perf_event_header header; 393 __u64 nr; 394 struct perf_record_stat_config_entry data[]; 395 }; 396 397 struct perf_record_stat { 398 struct perf_event_header header; 399 400 __u64 id; 401 __u32 cpu; 402 __u32 thread; 403 404 union { 405 struct { 406 __u64 val; 407 __u64 ena; 408 __u64 run; 409 }; 410 __u64 values[3]; 411 }; 412 }; 413 414 struct perf_record_stat_round { 415 struct perf_event_header header; 416 __u64 type; 417 __u64 time; 418 }; 419 420 struct perf_record_time_conv { 421 struct perf_event_header header; 422 __u64 time_shift; 423 __u64 time_mult; 424 __u64 time_zero; 425 __u64 time_cycles; 426 __u64 time_mask; 427 __u8 cap_user_time_zero; 428 __u8 cap_user_time_short; 429 __u8 reserved[6]; /* For alignment */ 430 }; 431 432 struct perf_record_header_feature { 433 struct perf_event_header header; 434 __u64 feat_id; 435 char data[]; 436 }; 437 438 struct perf_record_compressed { 439 struct perf_event_header header; 440 char data[]; 441 }; 442 443 enum perf_user_event_type { /* above any possible kernel type */ 444 PERF_RECORD_USER_TYPE_START = 64, 445 PERF_RECORD_HEADER_ATTR = 64, 446 PERF_RECORD_HEADER_EVENT_TYPE = 65, /* deprecated */ 447 PERF_RECORD_HEADER_TRACING_DATA = 66, 448 PERF_RECORD_HEADER_BUILD_ID = 67, 449 PERF_RECORD_FINISHED_ROUND = 68, 450 PERF_RECORD_ID_INDEX = 69, 451 PERF_RECORD_AUXTRACE_INFO = 70, 452 PERF_RECORD_AUXTRACE = 71, 453 PERF_RECORD_AUXTRACE_ERROR = 72, 454 PERF_RECORD_THREAD_MAP = 73, 455 PERF_RECORD_CPU_MAP = 74, 456 PERF_RECORD_STAT_CONFIG = 75, 457 PERF_RECORD_STAT = 76, 458 PERF_RECORD_STAT_ROUND = 77, 459 PERF_RECORD_EVENT_UPDATE = 78, 460 PERF_RECORD_TIME_CONV = 79, 461 PERF_RECORD_HEADER_FEATURE = 80, 462 PERF_RECORD_COMPRESSED = 81, 463 PERF_RECORD_FINISHED_INIT = 82, 464 PERF_RECORD_HEADER_MAX 465 }; 466 467 union perf_event { 468 struct perf_event_header header; 469 struct perf_record_mmap mmap; 470 struct perf_record_mmap2 mmap2; 471 struct perf_record_comm comm; 472 struct perf_record_namespaces namespaces; 473 struct perf_record_cgroup cgroup; 474 struct perf_record_fork fork; 475 struct perf_record_lost lost; 476 struct perf_record_lost_samples lost_samples; 477 struct perf_record_read read; 478 struct perf_record_throttle throttle; 479 struct perf_record_sample sample; 480 struct perf_record_bpf_event bpf; 481 struct perf_record_ksymbol ksymbol; 482 struct perf_record_text_poke_event text_poke; 483 struct perf_record_header_attr attr; 484 struct perf_record_event_update event_update; 485 struct perf_record_header_event_type event_type; 486 struct perf_record_header_tracing_data tracing_data; 487 struct perf_record_header_build_id build_id; 488 struct perf_record_id_index id_index; 489 struct perf_record_auxtrace_info auxtrace_info; 490 struct perf_record_auxtrace auxtrace; 491 struct perf_record_auxtrace_error auxtrace_error; 492 struct perf_record_aux aux; 493 struct perf_record_itrace_start itrace_start; 494 struct perf_record_aux_output_hw_id aux_output_hw_id; 495 struct perf_record_switch context_switch; 496 struct perf_record_thread_map thread_map; 497 struct perf_record_cpu_map cpu_map; 498 struct perf_record_stat_config stat_config; 499 struct perf_record_stat stat; 500 struct perf_record_stat_round stat_round; 501 struct perf_record_time_conv time_conv; 502 struct perf_record_header_feature feat; 503 struct perf_record_compressed pack; 504 }; 505 506 #endif /* __LIBPERF_EVENT_H */ 507