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 struct perf_sample { 147 u64 ip; 148 u32 pid, tid; 149 u64 time; 150 u64 addr; 151 u64 id; 152 u64 stream_id; 153 u64 period; 154 u64 weight; 155 u64 transaction; 156 u32 cpu; 157 u32 raw_size; 158 u64 data_src; 159 u32 flags; 160 u16 insn_len; 161 void *raw_data; 162 struct ip_callchain *callchain; 163 struct branch_stack *branch_stack; 164 struct regs_dump user_regs; 165 struct stack_dump user_stack; 166 struct sample_read read; 167 }; 168 169 #define PERF_MEM_DATA_SRC_NONE \ 170 (PERF_MEM_S(OP, NA) |\ 171 PERF_MEM_S(LVL, NA) |\ 172 PERF_MEM_S(SNOOP, NA) |\ 173 PERF_MEM_S(LOCK, NA) |\ 174 PERF_MEM_S(TLB, NA)) 175 176 struct build_id_event { 177 struct perf_event_header header; 178 pid_t pid; 179 u8 build_id[PERF_ALIGN(BUILD_ID_SIZE, sizeof(u64))]; 180 char filename[]; 181 }; 182 183 enum perf_user_event_type { /* above any possible kernel type */ 184 PERF_RECORD_USER_TYPE_START = 64, 185 PERF_RECORD_HEADER_ATTR = 64, 186 PERF_RECORD_HEADER_EVENT_TYPE = 65, /* depreceated */ 187 PERF_RECORD_HEADER_TRACING_DATA = 66, 188 PERF_RECORD_HEADER_BUILD_ID = 67, 189 PERF_RECORD_FINISHED_ROUND = 68, 190 PERF_RECORD_HEADER_MAX 191 }; 192 193 /* 194 * The kernel collects the number of events it couldn't send in a stretch and 195 * when possible sends this number in a PERF_RECORD_LOST event. The number of 196 * such "chunks" of lost events is stored in .nr_events[PERF_EVENT_LOST] while 197 * total_lost tells exactly how many events the kernel in fact lost, i.e. it is 198 * the sum of all struct lost_event.lost fields reported. 199 * 200 * The total_period is needed because by default auto-freq is used, so 201 * multipling nr_events[PERF_EVENT_SAMPLE] by a frequency isn't possible to get 202 * the total number of low level events, it is necessary to to sum all struct 203 * sample_event.period and stash the result in total_period. 204 */ 205 struct events_stats { 206 u64 total_period; 207 u64 total_non_filtered_period; 208 u64 total_lost; 209 u64 total_invalid_chains; 210 u32 nr_events[PERF_RECORD_HEADER_MAX]; 211 u32 nr_non_filtered_samples; 212 u32 nr_lost_warned; 213 u32 nr_unknown_events; 214 u32 nr_invalid_chains; 215 u32 nr_unknown_id; 216 u32 nr_unprocessable_samples; 217 }; 218 219 struct attr_event { 220 struct perf_event_header header; 221 struct perf_event_attr attr; 222 u64 id[]; 223 }; 224 225 #define MAX_EVENT_NAME 64 226 227 struct perf_trace_event_type { 228 u64 event_id; 229 char name[MAX_EVENT_NAME]; 230 }; 231 232 struct event_type_event { 233 struct perf_event_header header; 234 struct perf_trace_event_type event_type; 235 }; 236 237 struct tracing_data_event { 238 struct perf_event_header header; 239 u32 size; 240 }; 241 242 union perf_event { 243 struct perf_event_header header; 244 struct mmap_event mmap; 245 struct mmap2_event mmap2; 246 struct comm_event comm; 247 struct fork_event fork; 248 struct lost_event lost; 249 struct read_event read; 250 struct throttle_event throttle; 251 struct sample_event sample; 252 struct attr_event attr; 253 struct event_type_event event_type; 254 struct tracing_data_event tracing_data; 255 struct build_id_event build_id; 256 }; 257 258 void perf_event__print_totals(void); 259 260 struct perf_tool; 261 struct thread_map; 262 263 typedef int (*perf_event__handler_t)(struct perf_tool *tool, 264 union perf_event *event, 265 struct perf_sample *sample, 266 struct machine *machine); 267 268 int perf_event__synthesize_thread_map(struct perf_tool *tool, 269 struct thread_map *threads, 270 perf_event__handler_t process, 271 struct machine *machine, bool mmap_data); 272 int perf_event__synthesize_threads(struct perf_tool *tool, 273 perf_event__handler_t process, 274 struct machine *machine, bool mmap_data); 275 int perf_event__synthesize_kernel_mmap(struct perf_tool *tool, 276 perf_event__handler_t process, 277 struct machine *machine); 278 279 int perf_event__synthesize_modules(struct perf_tool *tool, 280 perf_event__handler_t process, 281 struct machine *machine); 282 283 int perf_event__process_comm(struct perf_tool *tool, 284 union perf_event *event, 285 struct perf_sample *sample, 286 struct machine *machine); 287 int perf_event__process_lost(struct perf_tool *tool, 288 union perf_event *event, 289 struct perf_sample *sample, 290 struct machine *machine); 291 int perf_event__process_mmap(struct perf_tool *tool, 292 union perf_event *event, 293 struct perf_sample *sample, 294 struct machine *machine); 295 int perf_event__process_mmap2(struct perf_tool *tool, 296 union perf_event *event, 297 struct perf_sample *sample, 298 struct machine *machine); 299 int perf_event__process_fork(struct perf_tool *tool, 300 union perf_event *event, 301 struct perf_sample *sample, 302 struct machine *machine); 303 int perf_event__process_exit(struct perf_tool *tool, 304 union perf_event *event, 305 struct perf_sample *sample, 306 struct machine *machine); 307 int perf_event__process(struct perf_tool *tool, 308 union perf_event *event, 309 struct perf_sample *sample, 310 struct machine *machine); 311 312 struct addr_location; 313 314 int perf_event__preprocess_sample(const union perf_event *event, 315 struct machine *machine, 316 struct addr_location *al, 317 struct perf_sample *sample); 318 319 struct thread; 320 321 bool is_bts_event(struct perf_event_attr *attr); 322 bool sample_addr_correlates_sym(struct perf_event_attr *attr); 323 void perf_event__preprocess_sample_addr(union perf_event *event, 324 struct perf_sample *sample, 325 struct machine *machine, 326 struct thread *thread, 327 struct addr_location *al); 328 329 const char *perf_event__name(unsigned int id); 330 331 size_t perf_event__sample_event_size(const struct perf_sample *sample, u64 type, 332 u64 read_format); 333 int perf_event__synthesize_sample(union perf_event *event, u64 type, 334 u64 read_format, 335 const struct perf_sample *sample, 336 bool swapped); 337 338 int perf_event__synthesize_mmap_events(struct perf_tool *tool, 339 union perf_event *event, 340 pid_t pid, pid_t tgid, 341 perf_event__handler_t process, 342 struct machine *machine, 343 bool mmap_data); 344 345 size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp); 346 size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp); 347 size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp); 348 size_t perf_event__fprintf_task(union perf_event *event, FILE *fp); 349 size_t perf_event__fprintf(union perf_event *event, FILE *fp); 350 351 u64 kallsyms__get_function_start(const char *kallsyms_filename, 352 const char *symbol_name); 353 354 #endif /* __PERF_RECORD_H */ 355