1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __PERF_RECORD_H 3 #define __PERF_RECORD_H 4 /* 5 * The linux/stddef.h isn't need here, but is needed for __always_inline used 6 * in files included from uapi/linux/perf_event.h such as 7 * /usr/include/linux/swab.h and /usr/include/linux/byteorder/little_endian.h, 8 * detected in at least musl libc, used in Alpine Linux. -acme 9 */ 10 #include <stdio.h> 11 #include <linux/stddef.h> 12 #include <perf/event.h> 13 #include <linux/types.h> 14 15 #include "perf_regs.h" 16 17 struct dso; 18 struct machine; 19 struct perf_event_attr; 20 21 #ifdef __LP64__ 22 /* 23 * /usr/include/inttypes.h uses just 'lu' for PRIu64, but we end up defining 24 * __u64 as long long unsigned int, and then -Werror=format= kicks in and 25 * complains of the mismatched types, so use these two special extra PRI 26 * macros to overcome that. 27 */ 28 #define PRI_lu64 "l" PRIu64 29 #define PRI_lx64 "l" PRIx64 30 #define PRI_ld64 "l" PRId64 31 #else 32 #define PRI_lu64 PRIu64 33 #define PRI_lx64 PRIx64 34 #define PRI_ld64 PRId64 35 #endif 36 37 #define PERF_SAMPLE_MASK \ 38 (PERF_SAMPLE_IP | PERF_SAMPLE_TID | \ 39 PERF_SAMPLE_TIME | PERF_SAMPLE_ADDR | \ 40 PERF_SAMPLE_ID | PERF_SAMPLE_STREAM_ID | \ 41 PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD | \ 42 PERF_SAMPLE_IDENTIFIER) 43 44 /* perf sample has 16 bits size limit */ 45 #define PERF_SAMPLE_MAX_SIZE (1 << 16) 46 47 struct regs_dump { 48 u64 abi; 49 u64 mask; 50 u64 *regs; 51 52 /* Cached values/mask filled by first register access. */ 53 u64 cache_regs[PERF_REGS_MAX]; 54 u64 cache_mask; 55 }; 56 57 struct stack_dump { 58 u16 offset; 59 u64 size; 60 char *data; 61 }; 62 63 struct sample_read_value { 64 u64 value; 65 u64 id; 66 }; 67 68 struct sample_read { 69 u64 time_enabled; 70 u64 time_running; 71 union { 72 struct { 73 u64 nr; 74 struct sample_read_value *values; 75 } group; 76 struct sample_read_value one; 77 }; 78 }; 79 80 struct ip_callchain { 81 u64 nr; 82 u64 ips[]; 83 }; 84 85 struct branch_stack; 86 87 enum { 88 PERF_IP_FLAG_BRANCH = 1ULL << 0, 89 PERF_IP_FLAG_CALL = 1ULL << 1, 90 PERF_IP_FLAG_RETURN = 1ULL << 2, 91 PERF_IP_FLAG_CONDITIONAL = 1ULL << 3, 92 PERF_IP_FLAG_SYSCALLRET = 1ULL << 4, 93 PERF_IP_FLAG_ASYNC = 1ULL << 5, 94 PERF_IP_FLAG_INTERRUPT = 1ULL << 6, 95 PERF_IP_FLAG_TX_ABORT = 1ULL << 7, 96 PERF_IP_FLAG_TRACE_BEGIN = 1ULL << 8, 97 PERF_IP_FLAG_TRACE_END = 1ULL << 9, 98 PERF_IP_FLAG_IN_TX = 1ULL << 10, 99 PERF_IP_FLAG_VMENTRY = 1ULL << 11, 100 PERF_IP_FLAG_VMEXIT = 1ULL << 12, 101 }; 102 103 #define PERF_IP_FLAG_CHARS "bcrosyiABExgh" 104 105 #define PERF_BRANCH_MASK (\ 106 PERF_IP_FLAG_BRANCH |\ 107 PERF_IP_FLAG_CALL |\ 108 PERF_IP_FLAG_RETURN |\ 109 PERF_IP_FLAG_CONDITIONAL |\ 110 PERF_IP_FLAG_SYSCALLRET |\ 111 PERF_IP_FLAG_ASYNC |\ 112 PERF_IP_FLAG_INTERRUPT |\ 113 PERF_IP_FLAG_TX_ABORT |\ 114 PERF_IP_FLAG_TRACE_BEGIN |\ 115 PERF_IP_FLAG_TRACE_END |\ 116 PERF_IP_FLAG_VMENTRY |\ 117 PERF_IP_FLAG_VMEXIT) 118 119 #define MAX_INSN 16 120 121 struct aux_sample { 122 u64 size; 123 void *data; 124 }; 125 126 struct perf_sample { 127 u64 ip; 128 u32 pid, tid; 129 u64 time; 130 u64 addr; 131 u64 id; 132 u64 stream_id; 133 u64 period; 134 u64 weight; 135 u64 transaction; 136 u64 insn_cnt; 137 u64 cyc_cnt; 138 u32 cpu; 139 u32 raw_size; 140 u64 data_src; 141 u64 phys_addr; 142 u64 data_page_size; 143 u64 code_page_size; 144 u64 cgroup; 145 u32 flags; 146 u16 insn_len; 147 u8 cpumode; 148 u16 misc; 149 u16 ins_lat; 150 u16 p_stage_cyc; 151 bool no_hw_idx; /* No hw_idx collected in branch_stack */ 152 char insn[MAX_INSN]; 153 void *raw_data; 154 struct ip_callchain *callchain; 155 struct branch_stack *branch_stack; 156 struct regs_dump user_regs; 157 struct regs_dump intr_regs; 158 struct stack_dump user_stack; 159 struct sample_read read; 160 struct aux_sample aux_sample; 161 }; 162 163 #define PERF_MEM_DATA_SRC_NONE \ 164 (PERF_MEM_S(OP, NA) |\ 165 PERF_MEM_S(LVL, NA) |\ 166 PERF_MEM_S(SNOOP, NA) |\ 167 PERF_MEM_S(LOCK, NA) |\ 168 PERF_MEM_S(TLB, NA)) 169 170 /* Attribute type for custom synthesized events */ 171 #define PERF_TYPE_SYNTH (INT_MAX + 1U) 172 173 /* Attribute config for custom synthesized events */ 174 enum perf_synth_id { 175 PERF_SYNTH_INTEL_PTWRITE, 176 PERF_SYNTH_INTEL_MWAIT, 177 PERF_SYNTH_INTEL_PWRE, 178 PERF_SYNTH_INTEL_EXSTOP, 179 PERF_SYNTH_INTEL_PWRX, 180 PERF_SYNTH_INTEL_CBR, 181 PERF_SYNTH_INTEL_PSB, 182 }; 183 184 /* 185 * Raw data formats for synthesized events. Note that 4 bytes of padding are 186 * present to match the 'size' member of PERF_SAMPLE_RAW data which is always 187 * 8-byte aligned. That means we must dereference raw_data with an offset of 4. 188 * Refer perf_sample__synth_ptr() and perf_synth__raw_data(). It also means the 189 * structure sizes are 4 bytes bigger than the raw_size, refer 190 * perf_synth__raw_size(). 191 */ 192 193 struct perf_synth_intel_ptwrite { 194 u32 padding; 195 union { 196 struct { 197 u32 ip : 1, 198 reserved : 31; 199 }; 200 u32 flags; 201 }; 202 u64 payload; 203 }; 204 205 struct perf_synth_intel_mwait { 206 u32 padding; 207 u32 reserved; 208 union { 209 struct { 210 u64 hints : 8, 211 reserved1 : 24, 212 extensions : 2, 213 reserved2 : 30; 214 }; 215 u64 payload; 216 }; 217 }; 218 219 struct perf_synth_intel_pwre { 220 u32 padding; 221 u32 reserved; 222 union { 223 struct { 224 u64 reserved1 : 7, 225 hw : 1, 226 subcstate : 4, 227 cstate : 4, 228 reserved2 : 48; 229 }; 230 u64 payload; 231 }; 232 }; 233 234 struct perf_synth_intel_exstop { 235 u32 padding; 236 union { 237 struct { 238 u32 ip : 1, 239 reserved : 31; 240 }; 241 u32 flags; 242 }; 243 }; 244 245 struct perf_synth_intel_pwrx { 246 u32 padding; 247 u32 reserved; 248 union { 249 struct { 250 u64 deepest_cstate : 4, 251 last_cstate : 4, 252 wake_reason : 4, 253 reserved1 : 52; 254 }; 255 u64 payload; 256 }; 257 }; 258 259 struct perf_synth_intel_cbr { 260 u32 padding; 261 union { 262 struct { 263 u32 cbr : 8, 264 reserved1 : 8, 265 max_nonturbo : 8, 266 reserved2 : 8; 267 }; 268 u32 flags; 269 }; 270 u32 freq; 271 u32 reserved3; 272 }; 273 274 struct perf_synth_intel_psb { 275 u32 padding; 276 u32 reserved; 277 u64 offset; 278 }; 279 280 /* 281 * raw_data is always 4 bytes from an 8-byte boundary, so subtract 4 to get 282 * 8-byte alignment. 283 */ perf_sample__synth_ptr(struct perf_sample * sample)284 static inline void *perf_sample__synth_ptr(struct perf_sample *sample) 285 { 286 return sample->raw_data - 4; 287 } 288 perf_synth__raw_data(void * p)289 static inline void *perf_synth__raw_data(void *p) 290 { 291 return p + 4; 292 } 293 294 #define perf_synth__raw_size(d) (sizeof(d) - 4) 295 296 #define perf_sample__bad_synth_size(s, d) ((s)->raw_size < sizeof(d) - 4) 297 298 enum { 299 PERF_STAT_ROUND_TYPE__INTERVAL = 0, 300 PERF_STAT_ROUND_TYPE__FINAL = 1, 301 }; 302 303 void perf_event__print_totals(void); 304 305 struct perf_cpu_map; 306 struct perf_record_stat_config; 307 struct perf_stat_config; 308 struct perf_tool; 309 310 void perf_event__read_stat_config(struct perf_stat_config *config, 311 struct perf_record_stat_config *event); 312 313 int perf_event__process_comm(struct perf_tool *tool, 314 union perf_event *event, 315 struct perf_sample *sample, 316 struct machine *machine); 317 int perf_event__process_lost(struct perf_tool *tool, 318 union perf_event *event, 319 struct perf_sample *sample, 320 struct machine *machine); 321 int perf_event__process_lost_samples(struct perf_tool *tool, 322 union perf_event *event, 323 struct perf_sample *sample, 324 struct machine *machine); 325 int perf_event__process_aux(struct perf_tool *tool, 326 union perf_event *event, 327 struct perf_sample *sample, 328 struct machine *machine); 329 int perf_event__process_itrace_start(struct perf_tool *tool, 330 union perf_event *event, 331 struct perf_sample *sample, 332 struct machine *machine); 333 int perf_event__process_switch(struct perf_tool *tool, 334 union perf_event *event, 335 struct perf_sample *sample, 336 struct machine *machine); 337 int perf_event__process_namespaces(struct perf_tool *tool, 338 union perf_event *event, 339 struct perf_sample *sample, 340 struct machine *machine); 341 int perf_event__process_cgroup(struct perf_tool *tool, 342 union perf_event *event, 343 struct perf_sample *sample, 344 struct machine *machine); 345 int perf_event__process_mmap(struct perf_tool *tool, 346 union perf_event *event, 347 struct perf_sample *sample, 348 struct machine *machine); 349 int perf_event__process_mmap2(struct perf_tool *tool, 350 union perf_event *event, 351 struct perf_sample *sample, 352 struct machine *machine); 353 int perf_event__process_fork(struct perf_tool *tool, 354 union perf_event *event, 355 struct perf_sample *sample, 356 struct machine *machine); 357 int perf_event__process_exit(struct perf_tool *tool, 358 union perf_event *event, 359 struct perf_sample *sample, 360 struct machine *machine); 361 int perf_event__process_ksymbol(struct perf_tool *tool, 362 union perf_event *event, 363 struct perf_sample *sample, 364 struct machine *machine); 365 int perf_event__process_bpf(struct perf_tool *tool, 366 union perf_event *event, 367 struct perf_sample *sample, 368 struct machine *machine); 369 int perf_event__process_text_poke(struct perf_tool *tool, 370 union perf_event *event, 371 struct perf_sample *sample, 372 struct machine *machine); 373 int perf_event__process(struct perf_tool *tool, 374 union perf_event *event, 375 struct perf_sample *sample, 376 struct machine *machine); 377 378 struct addr_location; 379 380 int machine__resolve(struct machine *machine, struct addr_location *al, 381 struct perf_sample *sample); 382 383 void addr_location__put(struct addr_location *al); 384 385 struct thread; 386 387 bool is_bts_event(struct perf_event_attr *attr); 388 bool sample_addr_correlates_sym(struct perf_event_attr *attr); 389 void thread__resolve(struct thread *thread, struct addr_location *al, 390 struct perf_sample *sample); 391 392 const char *perf_event__name(unsigned int id); 393 394 size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp); 395 size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp); 396 size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp); 397 size_t perf_event__fprintf_task(union perf_event *event, FILE *fp); 398 size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp); 399 size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp); 400 size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp); 401 size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp); 402 size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp); 403 size_t perf_event__fprintf_namespaces(union perf_event *event, FILE *fp); 404 size_t perf_event__fprintf_cgroup(union perf_event *event, FILE *fp); 405 size_t perf_event__fprintf_ksymbol(union perf_event *event, FILE *fp); 406 size_t perf_event__fprintf_bpf(union perf_event *event, FILE *fp); 407 size_t perf_event__fprintf_text_poke(union perf_event *event, struct machine *machine,FILE *fp); 408 size_t perf_event__fprintf(union perf_event *event, struct machine *machine, FILE *fp); 409 410 int kallsyms__get_function_start(const char *kallsyms_filename, 411 const char *symbol_name, u64 *addr); 412 413 void *cpu_map_data__alloc(struct perf_cpu_map *map, size_t *size, u16 *type, int *max); 414 void cpu_map_data__synthesize(struct perf_record_cpu_map_data *data, struct perf_cpu_map *map, 415 u16 type, int max); 416 417 void event_attr_init(struct perf_event_attr *attr); 418 419 int perf_event_paranoid(void); 420 bool perf_event_paranoid_check(int max_level); 421 422 extern int sysctl_perf_event_max_stack; 423 extern int sysctl_perf_event_max_contexts_per_stack; 424 extern unsigned int proc_map_timeout; 425 426 #define PAGE_SIZE_NAME_LEN 32 427 char *get_page_size_name(u64 size, char *str); 428 429 void arch_perf_parse_sample_weight(struct perf_sample *data, const __u64 *array, u64 type); 430 void arch_perf_synthesize_sample_weight(const struct perf_sample *data, __u64 *array, u64 type); 431 const char *arch_perf_header_entry(const char *se_header); 432 int arch_support_sort_key(const char *sort_key); 433 434 #endif /* __PERF_RECORD_H */ 435