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 reserved:60; 138 }; 139 140 struct branch_entry { 141 u64 from; 142 u64 to; 143 struct branch_flags flags; 144 }; 145 146 struct branch_stack { 147 u64 nr; 148 struct branch_entry entries[0]; 149 }; 150 151 enum { 152 PERF_IP_FLAG_BRANCH = 1ULL << 0, 153 PERF_IP_FLAG_CALL = 1ULL << 1, 154 PERF_IP_FLAG_RETURN = 1ULL << 2, 155 PERF_IP_FLAG_CONDITIONAL = 1ULL << 3, 156 PERF_IP_FLAG_SYSCALLRET = 1ULL << 4, 157 PERF_IP_FLAG_ASYNC = 1ULL << 5, 158 PERF_IP_FLAG_INTERRUPT = 1ULL << 6, 159 PERF_IP_FLAG_TX_ABORT = 1ULL << 7, 160 PERF_IP_FLAG_TRACE_BEGIN = 1ULL << 8, 161 PERF_IP_FLAG_TRACE_END = 1ULL << 9, 162 PERF_IP_FLAG_IN_TX = 1ULL << 10, 163 }; 164 165 #define PERF_IP_FLAG_CHARS "bcrosyiABEx" 166 167 #define PERF_BRANCH_MASK (\ 168 PERF_IP_FLAG_BRANCH |\ 169 PERF_IP_FLAG_CALL |\ 170 PERF_IP_FLAG_RETURN |\ 171 PERF_IP_FLAG_CONDITIONAL |\ 172 PERF_IP_FLAG_SYSCALLRET |\ 173 PERF_IP_FLAG_ASYNC |\ 174 PERF_IP_FLAG_INTERRUPT |\ 175 PERF_IP_FLAG_TX_ABORT |\ 176 PERF_IP_FLAG_TRACE_BEGIN |\ 177 PERF_IP_FLAG_TRACE_END) 178 179 struct perf_sample { 180 u64 ip; 181 u32 pid, tid; 182 u64 time; 183 u64 addr; 184 u64 id; 185 u64 stream_id; 186 u64 period; 187 u64 weight; 188 u64 transaction; 189 u32 cpu; 190 u32 raw_size; 191 u64 data_src; 192 u32 flags; 193 u16 insn_len; 194 void *raw_data; 195 struct ip_callchain *callchain; 196 struct branch_stack *branch_stack; 197 struct regs_dump user_regs; 198 struct regs_dump intr_regs; 199 struct stack_dump user_stack; 200 struct sample_read read; 201 }; 202 203 #define PERF_MEM_DATA_SRC_NONE \ 204 (PERF_MEM_S(OP, NA) |\ 205 PERF_MEM_S(LVL, NA) |\ 206 PERF_MEM_S(SNOOP, NA) |\ 207 PERF_MEM_S(LOCK, NA) |\ 208 PERF_MEM_S(TLB, NA)) 209 210 struct build_id_event { 211 struct perf_event_header header; 212 pid_t pid; 213 u8 build_id[PERF_ALIGN(BUILD_ID_SIZE, sizeof(u64))]; 214 char filename[]; 215 }; 216 217 enum perf_user_event_type { /* above any possible kernel type */ 218 PERF_RECORD_USER_TYPE_START = 64, 219 PERF_RECORD_HEADER_ATTR = 64, 220 PERF_RECORD_HEADER_EVENT_TYPE = 65, /* depreceated */ 221 PERF_RECORD_HEADER_TRACING_DATA = 66, 222 PERF_RECORD_HEADER_BUILD_ID = 67, 223 PERF_RECORD_FINISHED_ROUND = 68, 224 PERF_RECORD_ID_INDEX = 69, 225 PERF_RECORD_AUXTRACE_INFO = 70, 226 PERF_RECORD_AUXTRACE = 71, 227 PERF_RECORD_AUXTRACE_ERROR = 72, 228 PERF_RECORD_HEADER_MAX 229 }; 230 231 enum auxtrace_error_type { 232 PERF_AUXTRACE_ERROR_ITRACE = 1, 233 PERF_AUXTRACE_ERROR_MAX 234 }; 235 236 /* 237 * The kernel collects the number of events it couldn't send in a stretch and 238 * when possible sends this number in a PERF_RECORD_LOST event. The number of 239 * such "chunks" of lost events is stored in .nr_events[PERF_EVENT_LOST] while 240 * total_lost tells exactly how many events the kernel in fact lost, i.e. it is 241 * the sum of all struct lost_event.lost fields reported. 242 * 243 * The kernel discards mixed up samples and sends the number in a 244 * PERF_RECORD_LOST_SAMPLES event. The number of lost-samples events is stored 245 * in .nr_events[PERF_RECORD_LOST_SAMPLES] while total_lost_samples tells 246 * exactly how many samples the kernel in fact dropped, i.e. it is the sum of 247 * all struct lost_samples_event.lost fields reported. 248 * 249 * The total_period is needed because by default auto-freq is used, so 250 * multipling nr_events[PERF_EVENT_SAMPLE] by a frequency isn't possible to get 251 * the total number of low level events, it is necessary to to sum all struct 252 * sample_event.period and stash the result in total_period. 253 */ 254 struct events_stats { 255 u64 total_period; 256 u64 total_non_filtered_period; 257 u64 total_lost; 258 u64 total_lost_samples; 259 u64 total_invalid_chains; 260 u32 nr_events[PERF_RECORD_HEADER_MAX]; 261 u32 nr_non_filtered_samples; 262 u32 nr_lost_warned; 263 u32 nr_unknown_events; 264 u32 nr_invalid_chains; 265 u32 nr_unknown_id; 266 u32 nr_unprocessable_samples; 267 u32 nr_auxtrace_errors[PERF_AUXTRACE_ERROR_MAX]; 268 u32 nr_proc_map_timeout; 269 }; 270 271 struct attr_event { 272 struct perf_event_header header; 273 struct perf_event_attr attr; 274 u64 id[]; 275 }; 276 277 #define MAX_EVENT_NAME 64 278 279 struct perf_trace_event_type { 280 u64 event_id; 281 char name[MAX_EVENT_NAME]; 282 }; 283 284 struct event_type_event { 285 struct perf_event_header header; 286 struct perf_trace_event_type event_type; 287 }; 288 289 struct tracing_data_event { 290 struct perf_event_header header; 291 u32 size; 292 }; 293 294 struct id_index_entry { 295 u64 id; 296 u64 idx; 297 u64 cpu; 298 u64 tid; 299 }; 300 301 struct id_index_event { 302 struct perf_event_header header; 303 u64 nr; 304 struct id_index_entry entries[0]; 305 }; 306 307 struct auxtrace_info_event { 308 struct perf_event_header header; 309 u32 type; 310 u32 reserved__; /* For alignment */ 311 u64 priv[]; 312 }; 313 314 struct auxtrace_event { 315 struct perf_event_header header; 316 u64 size; 317 u64 offset; 318 u64 reference; 319 u32 idx; 320 u32 tid; 321 u32 cpu; 322 u32 reserved__; /* For alignment */ 323 }; 324 325 #define MAX_AUXTRACE_ERROR_MSG 64 326 327 struct auxtrace_error_event { 328 struct perf_event_header header; 329 u32 type; 330 u32 code; 331 u32 cpu; 332 u32 pid; 333 u32 tid; 334 u32 reserved__; /* For alignment */ 335 u64 ip; 336 char msg[MAX_AUXTRACE_ERROR_MSG]; 337 }; 338 339 struct aux_event { 340 struct perf_event_header header; 341 u64 aux_offset; 342 u64 aux_size; 343 u64 flags; 344 }; 345 346 struct itrace_start_event { 347 struct perf_event_header header; 348 u32 pid, tid; 349 }; 350 351 union perf_event { 352 struct perf_event_header header; 353 struct mmap_event mmap; 354 struct mmap2_event mmap2; 355 struct comm_event comm; 356 struct fork_event fork; 357 struct lost_event lost; 358 struct lost_samples_event lost_samples; 359 struct read_event read; 360 struct throttle_event throttle; 361 struct sample_event sample; 362 struct attr_event attr; 363 struct event_type_event event_type; 364 struct tracing_data_event tracing_data; 365 struct build_id_event build_id; 366 struct id_index_event id_index; 367 struct auxtrace_info_event auxtrace_info; 368 struct auxtrace_event auxtrace; 369 struct auxtrace_error_event auxtrace_error; 370 struct aux_event aux; 371 struct itrace_start_event itrace_start; 372 }; 373 374 void perf_event__print_totals(void); 375 376 struct perf_tool; 377 struct thread_map; 378 379 typedef int (*perf_event__handler_t)(struct perf_tool *tool, 380 union perf_event *event, 381 struct perf_sample *sample, 382 struct machine *machine); 383 384 int perf_event__synthesize_thread_map(struct perf_tool *tool, 385 struct thread_map *threads, 386 perf_event__handler_t process, 387 struct machine *machine, bool mmap_data, 388 unsigned int proc_map_timeout); 389 int perf_event__synthesize_threads(struct perf_tool *tool, 390 perf_event__handler_t process, 391 struct machine *machine, bool mmap_data, 392 unsigned int proc_map_timeout); 393 int perf_event__synthesize_kernel_mmap(struct perf_tool *tool, 394 perf_event__handler_t process, 395 struct machine *machine); 396 397 int perf_event__synthesize_modules(struct perf_tool *tool, 398 perf_event__handler_t process, 399 struct machine *machine); 400 401 int perf_event__process_comm(struct perf_tool *tool, 402 union perf_event *event, 403 struct perf_sample *sample, 404 struct machine *machine); 405 int perf_event__process_lost(struct perf_tool *tool, 406 union perf_event *event, 407 struct perf_sample *sample, 408 struct machine *machine); 409 int perf_event__process_lost_samples(struct perf_tool *tool, 410 union perf_event *event, 411 struct perf_sample *sample, 412 struct machine *machine); 413 int perf_event__process_aux(struct perf_tool *tool, 414 union perf_event *event, 415 struct perf_sample *sample, 416 struct machine *machine); 417 int perf_event__process_itrace_start(struct perf_tool *tool, 418 union perf_event *event, 419 struct perf_sample *sample, 420 struct machine *machine); 421 int perf_event__process_mmap(struct perf_tool *tool, 422 union perf_event *event, 423 struct perf_sample *sample, 424 struct machine *machine); 425 int perf_event__process_mmap2(struct perf_tool *tool, 426 union perf_event *event, 427 struct perf_sample *sample, 428 struct machine *machine); 429 int perf_event__process_fork(struct perf_tool *tool, 430 union perf_event *event, 431 struct perf_sample *sample, 432 struct machine *machine); 433 int perf_event__process_exit(struct perf_tool *tool, 434 union perf_event *event, 435 struct perf_sample *sample, 436 struct machine *machine); 437 int perf_event__process(struct perf_tool *tool, 438 union perf_event *event, 439 struct perf_sample *sample, 440 struct machine *machine); 441 442 struct addr_location; 443 444 int perf_event__preprocess_sample(const union perf_event *event, 445 struct machine *machine, 446 struct addr_location *al, 447 struct perf_sample *sample); 448 449 void addr_location__put(struct addr_location *al); 450 451 struct thread; 452 453 bool is_bts_event(struct perf_event_attr *attr); 454 bool sample_addr_correlates_sym(struct perf_event_attr *attr); 455 void perf_event__preprocess_sample_addr(union perf_event *event, 456 struct perf_sample *sample, 457 struct thread *thread, 458 struct addr_location *al); 459 460 const char *perf_event__name(unsigned int id); 461 462 size_t perf_event__sample_event_size(const struct perf_sample *sample, u64 type, 463 u64 read_format); 464 int perf_event__synthesize_sample(union perf_event *event, u64 type, 465 u64 read_format, 466 const struct perf_sample *sample, 467 bool swapped); 468 469 int perf_event__synthesize_mmap_events(struct perf_tool *tool, 470 union perf_event *event, 471 pid_t pid, pid_t tgid, 472 perf_event__handler_t process, 473 struct machine *machine, 474 bool mmap_data, 475 unsigned int proc_map_timeout); 476 477 size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp); 478 size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp); 479 size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp); 480 size_t perf_event__fprintf_task(union perf_event *event, FILE *fp); 481 size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp); 482 size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp); 483 size_t perf_event__fprintf(union perf_event *event, FILE *fp); 484 485 u64 kallsyms__get_function_start(const char *kallsyms_filename, 486 const char *symbol_name); 487 488 #endif /* __PERF_RECORD_H */ 489