1 #ifndef __PERF_RECORD_H 2 #define __PERF_RECORD_H 3 4 #include <limits.h> 5 #include <stdio.h> 6 7 #include "../perf.h" 8 #include "map.h" 9 #include "build-id.h" 10 #include "perf_regs.h" 11 12 struct mmap_event { 13 struct perf_event_header header; 14 u32 pid, tid; 15 u64 start; 16 u64 len; 17 u64 pgoff; 18 char filename[PATH_MAX]; 19 }; 20 21 struct mmap2_event { 22 struct perf_event_header header; 23 u32 pid, tid; 24 u64 start; 25 u64 len; 26 u64 pgoff; 27 u32 maj; 28 u32 min; 29 u64 ino; 30 u64 ino_generation; 31 u32 prot; 32 u32 flags; 33 char filename[PATH_MAX]; 34 }; 35 36 struct comm_event { 37 struct perf_event_header header; 38 u32 pid, tid; 39 char comm[16]; 40 }; 41 42 struct fork_event { 43 struct perf_event_header header; 44 u32 pid, ppid; 45 u32 tid, ptid; 46 u64 time; 47 }; 48 49 struct lost_event { 50 struct perf_event_header header; 51 u64 id; 52 u64 lost; 53 }; 54 55 struct lost_samples_event { 56 struct perf_event_header header; 57 u64 lost; 58 }; 59 60 /* 61 * PERF_FORMAT_ENABLED | PERF_FORMAT_RUNNING | PERF_FORMAT_ID 62 */ 63 struct read_event { 64 struct perf_event_header header; 65 u32 pid, tid; 66 u64 value; 67 u64 time_enabled; 68 u64 time_running; 69 u64 id; 70 }; 71 72 struct throttle_event { 73 struct perf_event_header header; 74 u64 time; 75 u64 id; 76 u64 stream_id; 77 }; 78 79 #define PERF_SAMPLE_MASK \ 80 (PERF_SAMPLE_IP | PERF_SAMPLE_TID | \ 81 PERF_SAMPLE_TIME | PERF_SAMPLE_ADDR | \ 82 PERF_SAMPLE_ID | PERF_SAMPLE_STREAM_ID | \ 83 PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD | \ 84 PERF_SAMPLE_IDENTIFIER) 85 86 /* perf sample has 16 bits size limit */ 87 #define PERF_SAMPLE_MAX_SIZE (1 << 16) 88 89 struct sample_event { 90 struct perf_event_header header; 91 u64 array[]; 92 }; 93 94 struct regs_dump { 95 u64 abi; 96 u64 mask; 97 u64 *regs; 98 99 /* Cached values/mask filled by first register access. */ 100 u64 cache_regs[PERF_REGS_MAX]; 101 u64 cache_mask; 102 }; 103 104 struct stack_dump { 105 u16 offset; 106 u64 size; 107 char *data; 108 }; 109 110 struct sample_read_value { 111 u64 value; 112 u64 id; 113 }; 114 115 struct sample_read { 116 u64 time_enabled; 117 u64 time_running; 118 union { 119 struct { 120 u64 nr; 121 struct sample_read_value *values; 122 } group; 123 struct sample_read_value one; 124 }; 125 }; 126 127 struct ip_callchain { 128 u64 nr; 129 u64 ips[0]; 130 }; 131 132 struct branch_flags { 133 u64 mispred:1; 134 u64 predicted:1; 135 u64 in_tx:1; 136 u64 abort:1; 137 u64 cycles:16; 138 u64 reserved:44; 139 }; 140 141 struct branch_entry { 142 u64 from; 143 u64 to; 144 struct branch_flags flags; 145 }; 146 147 struct branch_stack { 148 u64 nr; 149 struct branch_entry entries[0]; 150 }; 151 152 enum { 153 PERF_IP_FLAG_BRANCH = 1ULL << 0, 154 PERF_IP_FLAG_CALL = 1ULL << 1, 155 PERF_IP_FLAG_RETURN = 1ULL << 2, 156 PERF_IP_FLAG_CONDITIONAL = 1ULL << 3, 157 PERF_IP_FLAG_SYSCALLRET = 1ULL << 4, 158 PERF_IP_FLAG_ASYNC = 1ULL << 5, 159 PERF_IP_FLAG_INTERRUPT = 1ULL << 6, 160 PERF_IP_FLAG_TX_ABORT = 1ULL << 7, 161 PERF_IP_FLAG_TRACE_BEGIN = 1ULL << 8, 162 PERF_IP_FLAG_TRACE_END = 1ULL << 9, 163 PERF_IP_FLAG_IN_TX = 1ULL << 10, 164 }; 165 166 #define PERF_IP_FLAG_CHARS "bcrosyiABEx" 167 168 #define PERF_BRANCH_MASK (\ 169 PERF_IP_FLAG_BRANCH |\ 170 PERF_IP_FLAG_CALL |\ 171 PERF_IP_FLAG_RETURN |\ 172 PERF_IP_FLAG_CONDITIONAL |\ 173 PERF_IP_FLAG_SYSCALLRET |\ 174 PERF_IP_FLAG_ASYNC |\ 175 PERF_IP_FLAG_INTERRUPT |\ 176 PERF_IP_FLAG_TX_ABORT |\ 177 PERF_IP_FLAG_TRACE_BEGIN |\ 178 PERF_IP_FLAG_TRACE_END) 179 180 struct perf_sample { 181 u64 ip; 182 u32 pid, tid; 183 u64 time; 184 u64 addr; 185 u64 id; 186 u64 stream_id; 187 u64 period; 188 u64 weight; 189 u64 transaction; 190 u32 cpu; 191 u32 raw_size; 192 u64 data_src; 193 u32 flags; 194 u16 insn_len; 195 void *raw_data; 196 struct ip_callchain *callchain; 197 struct branch_stack *branch_stack; 198 struct regs_dump user_regs; 199 struct regs_dump intr_regs; 200 struct stack_dump user_stack; 201 struct sample_read read; 202 }; 203 204 #define PERF_MEM_DATA_SRC_NONE \ 205 (PERF_MEM_S(OP, NA) |\ 206 PERF_MEM_S(LVL, NA) |\ 207 PERF_MEM_S(SNOOP, NA) |\ 208 PERF_MEM_S(LOCK, NA) |\ 209 PERF_MEM_S(TLB, NA)) 210 211 struct build_id_event { 212 struct perf_event_header header; 213 pid_t pid; 214 u8 build_id[PERF_ALIGN(BUILD_ID_SIZE, sizeof(u64))]; 215 char filename[]; 216 }; 217 218 enum perf_user_event_type { /* above any possible kernel type */ 219 PERF_RECORD_USER_TYPE_START = 64, 220 PERF_RECORD_HEADER_ATTR = 64, 221 PERF_RECORD_HEADER_EVENT_TYPE = 65, /* depreceated */ 222 PERF_RECORD_HEADER_TRACING_DATA = 66, 223 PERF_RECORD_HEADER_BUILD_ID = 67, 224 PERF_RECORD_FINISHED_ROUND = 68, 225 PERF_RECORD_ID_INDEX = 69, 226 PERF_RECORD_AUXTRACE_INFO = 70, 227 PERF_RECORD_AUXTRACE = 71, 228 PERF_RECORD_AUXTRACE_ERROR = 72, 229 PERF_RECORD_HEADER_MAX 230 }; 231 232 enum auxtrace_error_type { 233 PERF_AUXTRACE_ERROR_ITRACE = 1, 234 PERF_AUXTRACE_ERROR_MAX 235 }; 236 237 /* 238 * The kernel collects the number of events it couldn't send in a stretch and 239 * when possible sends this number in a PERF_RECORD_LOST event. The number of 240 * such "chunks" of lost events is stored in .nr_events[PERF_EVENT_LOST] while 241 * total_lost tells exactly how many events the kernel in fact lost, i.e. it is 242 * the sum of all struct lost_event.lost fields reported. 243 * 244 * The kernel discards mixed up samples and sends the number in a 245 * PERF_RECORD_LOST_SAMPLES event. The number of lost-samples events is stored 246 * in .nr_events[PERF_RECORD_LOST_SAMPLES] while total_lost_samples tells 247 * exactly how many samples the kernel in fact dropped, i.e. it is the sum of 248 * all struct lost_samples_event.lost fields reported. 249 * 250 * The total_period is needed because by default auto-freq is used, so 251 * multipling nr_events[PERF_EVENT_SAMPLE] by a frequency isn't possible to get 252 * the total number of low level events, it is necessary to to sum all struct 253 * sample_event.period and stash the result in total_period. 254 */ 255 struct events_stats { 256 u64 total_period; 257 u64 total_non_filtered_period; 258 u64 total_lost; 259 u64 total_lost_samples; 260 u64 total_invalid_chains; 261 u32 nr_events[PERF_RECORD_HEADER_MAX]; 262 u32 nr_non_filtered_samples; 263 u32 nr_lost_warned; 264 u32 nr_unknown_events; 265 u32 nr_invalid_chains; 266 u32 nr_unknown_id; 267 u32 nr_unprocessable_samples; 268 u32 nr_auxtrace_errors[PERF_AUXTRACE_ERROR_MAX]; 269 u32 nr_proc_map_timeout; 270 }; 271 272 struct attr_event { 273 struct perf_event_header header; 274 struct perf_event_attr attr; 275 u64 id[]; 276 }; 277 278 #define MAX_EVENT_NAME 64 279 280 struct perf_trace_event_type { 281 u64 event_id; 282 char name[MAX_EVENT_NAME]; 283 }; 284 285 struct event_type_event { 286 struct perf_event_header header; 287 struct perf_trace_event_type event_type; 288 }; 289 290 struct tracing_data_event { 291 struct perf_event_header header; 292 u32 size; 293 }; 294 295 struct id_index_entry { 296 u64 id; 297 u64 idx; 298 u64 cpu; 299 u64 tid; 300 }; 301 302 struct id_index_event { 303 struct perf_event_header header; 304 u64 nr; 305 struct id_index_entry entries[0]; 306 }; 307 308 struct auxtrace_info_event { 309 struct perf_event_header header; 310 u32 type; 311 u32 reserved__; /* For alignment */ 312 u64 priv[]; 313 }; 314 315 struct auxtrace_event { 316 struct perf_event_header header; 317 u64 size; 318 u64 offset; 319 u64 reference; 320 u32 idx; 321 u32 tid; 322 u32 cpu; 323 u32 reserved__; /* For alignment */ 324 }; 325 326 #define MAX_AUXTRACE_ERROR_MSG 64 327 328 struct auxtrace_error_event { 329 struct perf_event_header header; 330 u32 type; 331 u32 code; 332 u32 cpu; 333 u32 pid; 334 u32 tid; 335 u32 reserved__; /* For alignment */ 336 u64 ip; 337 char msg[MAX_AUXTRACE_ERROR_MSG]; 338 }; 339 340 struct aux_event { 341 struct perf_event_header header; 342 u64 aux_offset; 343 u64 aux_size; 344 u64 flags; 345 }; 346 347 struct itrace_start_event { 348 struct perf_event_header header; 349 u32 pid, tid; 350 }; 351 352 struct context_switch_event { 353 struct perf_event_header header; 354 u32 next_prev_pid; 355 u32 next_prev_tid; 356 }; 357 358 union perf_event { 359 struct perf_event_header header; 360 struct mmap_event mmap; 361 struct mmap2_event mmap2; 362 struct comm_event comm; 363 struct fork_event fork; 364 struct lost_event lost; 365 struct lost_samples_event lost_samples; 366 struct read_event read; 367 struct throttle_event throttle; 368 struct sample_event sample; 369 struct attr_event attr; 370 struct event_type_event event_type; 371 struct tracing_data_event tracing_data; 372 struct build_id_event build_id; 373 struct id_index_event id_index; 374 struct auxtrace_info_event auxtrace_info; 375 struct auxtrace_event auxtrace; 376 struct auxtrace_error_event auxtrace_error; 377 struct aux_event aux; 378 struct itrace_start_event itrace_start; 379 struct context_switch_event context_switch; 380 }; 381 382 void perf_event__print_totals(void); 383 384 struct perf_tool; 385 struct thread_map; 386 387 typedef int (*perf_event__handler_t)(struct perf_tool *tool, 388 union perf_event *event, 389 struct perf_sample *sample, 390 struct machine *machine); 391 392 int perf_event__synthesize_thread_map(struct perf_tool *tool, 393 struct thread_map *threads, 394 perf_event__handler_t process, 395 struct machine *machine, bool mmap_data, 396 unsigned int proc_map_timeout); 397 int perf_event__synthesize_threads(struct perf_tool *tool, 398 perf_event__handler_t process, 399 struct machine *machine, bool mmap_data, 400 unsigned int proc_map_timeout); 401 int perf_event__synthesize_kernel_mmap(struct perf_tool *tool, 402 perf_event__handler_t process, 403 struct machine *machine); 404 405 int perf_event__synthesize_modules(struct perf_tool *tool, 406 perf_event__handler_t process, 407 struct machine *machine); 408 409 int perf_event__process_comm(struct perf_tool *tool, 410 union perf_event *event, 411 struct perf_sample *sample, 412 struct machine *machine); 413 int perf_event__process_lost(struct perf_tool *tool, 414 union perf_event *event, 415 struct perf_sample *sample, 416 struct machine *machine); 417 int perf_event__process_lost_samples(struct perf_tool *tool, 418 union perf_event *event, 419 struct perf_sample *sample, 420 struct machine *machine); 421 int perf_event__process_aux(struct perf_tool *tool, 422 union perf_event *event, 423 struct perf_sample *sample, 424 struct machine *machine); 425 int perf_event__process_itrace_start(struct perf_tool *tool, 426 union perf_event *event, 427 struct perf_sample *sample, 428 struct machine *machine); 429 int perf_event__process_switch(struct perf_tool *tool, 430 union perf_event *event, 431 struct perf_sample *sample, 432 struct machine *machine); 433 int perf_event__process_mmap(struct perf_tool *tool, 434 union perf_event *event, 435 struct perf_sample *sample, 436 struct machine *machine); 437 int perf_event__process_mmap2(struct perf_tool *tool, 438 union perf_event *event, 439 struct perf_sample *sample, 440 struct machine *machine); 441 int perf_event__process_fork(struct perf_tool *tool, 442 union perf_event *event, 443 struct perf_sample *sample, 444 struct machine *machine); 445 int perf_event__process_exit(struct perf_tool *tool, 446 union perf_event *event, 447 struct perf_sample *sample, 448 struct machine *machine); 449 int perf_event__process(struct perf_tool *tool, 450 union perf_event *event, 451 struct perf_sample *sample, 452 struct machine *machine); 453 454 struct addr_location; 455 456 int perf_event__preprocess_sample(const union perf_event *event, 457 struct machine *machine, 458 struct addr_location *al, 459 struct perf_sample *sample); 460 461 void addr_location__put(struct addr_location *al); 462 463 struct thread; 464 465 bool is_bts_event(struct perf_event_attr *attr); 466 bool sample_addr_correlates_sym(struct perf_event_attr *attr); 467 void perf_event__preprocess_sample_addr(union perf_event *event, 468 struct perf_sample *sample, 469 struct thread *thread, 470 struct addr_location *al); 471 472 const char *perf_event__name(unsigned int id); 473 474 size_t perf_event__sample_event_size(const struct perf_sample *sample, u64 type, 475 u64 read_format); 476 int perf_event__synthesize_sample(union perf_event *event, u64 type, 477 u64 read_format, 478 const struct perf_sample *sample, 479 bool swapped); 480 481 int perf_event__synthesize_mmap_events(struct perf_tool *tool, 482 union perf_event *event, 483 pid_t pid, pid_t tgid, 484 perf_event__handler_t process, 485 struct machine *machine, 486 bool mmap_data, 487 unsigned int proc_map_timeout); 488 489 size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp); 490 size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp); 491 size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp); 492 size_t perf_event__fprintf_task(union perf_event *event, FILE *fp); 493 size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp); 494 size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp); 495 size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp); 496 size_t perf_event__fprintf(union perf_event *event, FILE *fp); 497 498 u64 kallsyms__get_function_start(const char *kallsyms_filename, 499 const char *symbol_name); 500 501 #endif /* __PERF_RECORD_H */ 502