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