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_BRANCH_MASK (\ 161 PERF_IP_FLAG_BRANCH |\ 162 PERF_IP_FLAG_CALL |\ 163 PERF_IP_FLAG_RETURN |\ 164 PERF_IP_FLAG_CONDITIONAL |\ 165 PERF_IP_FLAG_SYSCALLRET |\ 166 PERF_IP_FLAG_ASYNC |\ 167 PERF_IP_FLAG_INTERRUPT |\ 168 PERF_IP_FLAG_TX_ABORT |\ 169 PERF_IP_FLAG_TRACE_BEGIN |\ 170 PERF_IP_FLAG_TRACE_END) 171 172 struct perf_sample { 173 u64 ip; 174 u32 pid, tid; 175 u64 time; 176 u64 addr; 177 u64 id; 178 u64 stream_id; 179 u64 period; 180 u64 weight; 181 u64 transaction; 182 u32 cpu; 183 u32 raw_size; 184 u64 data_src; 185 u32 flags; 186 u16 insn_len; 187 void *raw_data; 188 struct ip_callchain *callchain; 189 struct branch_stack *branch_stack; 190 struct regs_dump user_regs; 191 struct regs_dump intr_regs; 192 struct stack_dump user_stack; 193 struct sample_read read; 194 }; 195 196 #define PERF_MEM_DATA_SRC_NONE \ 197 (PERF_MEM_S(OP, NA) |\ 198 PERF_MEM_S(LVL, NA) |\ 199 PERF_MEM_S(SNOOP, NA) |\ 200 PERF_MEM_S(LOCK, NA) |\ 201 PERF_MEM_S(TLB, NA)) 202 203 struct build_id_event { 204 struct perf_event_header header; 205 pid_t pid; 206 u8 build_id[PERF_ALIGN(BUILD_ID_SIZE, sizeof(u64))]; 207 char filename[]; 208 }; 209 210 enum perf_user_event_type { /* above any possible kernel type */ 211 PERF_RECORD_USER_TYPE_START = 64, 212 PERF_RECORD_HEADER_ATTR = 64, 213 PERF_RECORD_HEADER_EVENT_TYPE = 65, /* depreceated */ 214 PERF_RECORD_HEADER_TRACING_DATA = 66, 215 PERF_RECORD_HEADER_BUILD_ID = 67, 216 PERF_RECORD_FINISHED_ROUND = 68, 217 PERF_RECORD_ID_INDEX = 69, 218 PERF_RECORD_HEADER_MAX 219 }; 220 221 /* 222 * The kernel collects the number of events it couldn't send in a stretch and 223 * when possible sends this number in a PERF_RECORD_LOST event. The number of 224 * such "chunks" of lost events is stored in .nr_events[PERF_EVENT_LOST] while 225 * total_lost tells exactly how many events the kernel in fact lost, i.e. it is 226 * the sum of all struct lost_event.lost fields reported. 227 * 228 * The total_period is needed because by default auto-freq is used, so 229 * multipling nr_events[PERF_EVENT_SAMPLE] by a frequency isn't possible to get 230 * the total number of low level events, it is necessary to to sum all struct 231 * sample_event.period and stash the result in total_period. 232 */ 233 struct events_stats { 234 u64 total_period; 235 u64 total_non_filtered_period; 236 u64 total_lost; 237 u64 total_invalid_chains; 238 u32 nr_events[PERF_RECORD_HEADER_MAX]; 239 u32 nr_non_filtered_samples; 240 u32 nr_lost_warned; 241 u32 nr_unknown_events; 242 u32 nr_invalid_chains; 243 u32 nr_unknown_id; 244 u32 nr_unprocessable_samples; 245 u32 nr_unordered_events; 246 }; 247 248 struct attr_event { 249 struct perf_event_header header; 250 struct perf_event_attr attr; 251 u64 id[]; 252 }; 253 254 #define MAX_EVENT_NAME 64 255 256 struct perf_trace_event_type { 257 u64 event_id; 258 char name[MAX_EVENT_NAME]; 259 }; 260 261 struct event_type_event { 262 struct perf_event_header header; 263 struct perf_trace_event_type event_type; 264 }; 265 266 struct tracing_data_event { 267 struct perf_event_header header; 268 u32 size; 269 }; 270 271 struct id_index_entry { 272 u64 id; 273 u64 idx; 274 u64 cpu; 275 u64 tid; 276 }; 277 278 struct id_index_event { 279 struct perf_event_header header; 280 u64 nr; 281 struct id_index_entry entries[0]; 282 }; 283 284 union perf_event { 285 struct perf_event_header header; 286 struct mmap_event mmap; 287 struct mmap2_event mmap2; 288 struct comm_event comm; 289 struct fork_event fork; 290 struct lost_event lost; 291 struct read_event read; 292 struct throttle_event throttle; 293 struct sample_event sample; 294 struct attr_event attr; 295 struct event_type_event event_type; 296 struct tracing_data_event tracing_data; 297 struct build_id_event build_id; 298 struct id_index_event id_index; 299 }; 300 301 void perf_event__print_totals(void); 302 303 struct perf_tool; 304 struct thread_map; 305 306 typedef int (*perf_event__handler_t)(struct perf_tool *tool, 307 union perf_event *event, 308 struct perf_sample *sample, 309 struct machine *machine); 310 311 int perf_event__synthesize_thread_map(struct perf_tool *tool, 312 struct thread_map *threads, 313 perf_event__handler_t process, 314 struct machine *machine, bool mmap_data); 315 int perf_event__synthesize_threads(struct perf_tool *tool, 316 perf_event__handler_t process, 317 struct machine *machine, bool mmap_data); 318 int perf_event__synthesize_kernel_mmap(struct perf_tool *tool, 319 perf_event__handler_t process, 320 struct machine *machine); 321 322 int perf_event__synthesize_modules(struct perf_tool *tool, 323 perf_event__handler_t process, 324 struct machine *machine); 325 326 int perf_event__process_comm(struct perf_tool *tool, 327 union perf_event *event, 328 struct perf_sample *sample, 329 struct machine *machine); 330 int perf_event__process_lost(struct perf_tool *tool, 331 union perf_event *event, 332 struct perf_sample *sample, 333 struct machine *machine); 334 int perf_event__process_mmap(struct perf_tool *tool, 335 union perf_event *event, 336 struct perf_sample *sample, 337 struct machine *machine); 338 int perf_event__process_mmap2(struct perf_tool *tool, 339 union perf_event *event, 340 struct perf_sample *sample, 341 struct machine *machine); 342 int perf_event__process_fork(struct perf_tool *tool, 343 union perf_event *event, 344 struct perf_sample *sample, 345 struct machine *machine); 346 int perf_event__process_exit(struct perf_tool *tool, 347 union perf_event *event, 348 struct perf_sample *sample, 349 struct machine *machine); 350 int perf_event__process(struct perf_tool *tool, 351 union perf_event *event, 352 struct perf_sample *sample, 353 struct machine *machine); 354 355 struct addr_location; 356 357 int perf_event__preprocess_sample(const union perf_event *event, 358 struct machine *machine, 359 struct addr_location *al, 360 struct perf_sample *sample); 361 362 struct thread; 363 364 bool is_bts_event(struct perf_event_attr *attr); 365 bool sample_addr_correlates_sym(struct perf_event_attr *attr); 366 void perf_event__preprocess_sample_addr(union perf_event *event, 367 struct perf_sample *sample, 368 struct thread *thread, 369 struct addr_location *al); 370 371 const char *perf_event__name(unsigned int id); 372 373 size_t perf_event__sample_event_size(const struct perf_sample *sample, u64 type, 374 u64 read_format); 375 int perf_event__synthesize_sample(union perf_event *event, u64 type, 376 u64 read_format, 377 const struct perf_sample *sample, 378 bool swapped); 379 380 int perf_event__synthesize_mmap_events(struct perf_tool *tool, 381 union perf_event *event, 382 pid_t pid, pid_t tgid, 383 perf_event__handler_t process, 384 struct machine *machine, 385 bool mmap_data); 386 387 size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp); 388 size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp); 389 size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp); 390 size_t perf_event__fprintf_task(union perf_event *event, FILE *fp); 391 size_t perf_event__fprintf(union perf_event *event, FILE *fp); 392 393 u64 kallsyms__get_function_start(const char *kallsyms_filename, 394 const char *symbol_name); 395 396 #endif /* __PERF_RECORD_H */ 397