1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * auxtrace.h: AUX area trace support 4 * Copyright (c) 2013-2015, Intel Corporation. 5 */ 6 7 #ifndef __PERF_AUXTRACE_H 8 #define __PERF_AUXTRACE_H 9 10 #include <sys/types.h> 11 #include <errno.h> 12 #include <stdbool.h> 13 #include <stddef.h> 14 #include <linux/list.h> 15 #include <linux/perf_event.h> 16 #include <linux/types.h> 17 #include <asm/bitsperlong.h> 18 #include <asm/barrier.h> 19 20 #include "event.h" 21 #include "session.h" 22 23 union perf_event; 24 struct perf_session; 25 struct evlist; 26 struct perf_tool; 27 struct perf_mmap; 28 struct option; 29 struct record_opts; 30 struct perf_record_auxtrace_info; 31 struct events_stats; 32 33 enum auxtrace_error_type { 34 PERF_AUXTRACE_ERROR_ITRACE = 1, 35 PERF_AUXTRACE_ERROR_MAX 36 }; 37 38 /* Auxtrace records must have the same alignment as perf event records */ 39 #define PERF_AUXTRACE_RECORD_ALIGNMENT 8 40 41 enum auxtrace_type { 42 PERF_AUXTRACE_UNKNOWN, 43 PERF_AUXTRACE_INTEL_PT, 44 PERF_AUXTRACE_INTEL_BTS, 45 PERF_AUXTRACE_CS_ETM, 46 PERF_AUXTRACE_ARM_SPE, 47 PERF_AUXTRACE_S390_CPUMSF, 48 }; 49 50 enum itrace_period_type { 51 PERF_ITRACE_PERIOD_INSTRUCTIONS, 52 PERF_ITRACE_PERIOD_TICKS, 53 PERF_ITRACE_PERIOD_NANOSECS, 54 }; 55 56 /** 57 * struct itrace_synth_opts - AUX area tracing synthesis options. 58 * @set: indicates whether or not options have been set 59 * @default_no_sample: Default to no sampling. 60 * @inject: indicates the event (not just the sample) must be fully synthesized 61 * because 'perf inject' will write it out 62 * @instructions: whether to synthesize 'instructions' events 63 * @branches: whether to synthesize 'branches' events 64 * @transactions: whether to synthesize events for transactions 65 * @ptwrites: whether to synthesize events for ptwrites 66 * @pwr_events: whether to synthesize power events 67 * @other_events: whether to synthesize other events recorded due to the use of 68 * aux_output 69 * @errors: whether to synthesize decoder error events 70 * @dont_decode: whether to skip decoding entirely 71 * @log: write a decoding log 72 * @calls: limit branch samples to calls (can be combined with @returns) 73 * @returns: limit branch samples to returns (can be combined with @calls) 74 * @callchain: add callchain to 'instructions' events 75 * @thread_stack: feed branches to the thread_stack 76 * @last_branch: add branch context to 'instruction' events 77 * @callchain_sz: maximum callchain size 78 * @last_branch_sz: branch context size 79 * @period: 'instructions' events period 80 * @period_type: 'instructions' events period type 81 * @initial_skip: skip N events at the beginning. 82 * @cpu_bitmap: CPUs for which to synthesize events, or NULL for all 83 * @ptime_range: time intervals to trace or NULL 84 * @range_num: number of time intervals to trace 85 */ 86 struct itrace_synth_opts { 87 bool set; 88 bool default_no_sample; 89 bool inject; 90 bool instructions; 91 bool branches; 92 bool transactions; 93 bool ptwrites; 94 bool pwr_events; 95 bool other_events; 96 bool errors; 97 bool dont_decode; 98 bool log; 99 bool calls; 100 bool returns; 101 bool callchain; 102 bool thread_stack; 103 bool last_branch; 104 unsigned int callchain_sz; 105 unsigned int last_branch_sz; 106 unsigned long long period; 107 enum itrace_period_type period_type; 108 unsigned long initial_skip; 109 unsigned long *cpu_bitmap; 110 struct perf_time_interval *ptime_range; 111 int range_num; 112 }; 113 114 /** 115 * struct auxtrace_index_entry - indexes a AUX area tracing event within a 116 * perf.data file. 117 * @file_offset: offset within the perf.data file 118 * @sz: size of the event 119 */ 120 struct auxtrace_index_entry { 121 u64 file_offset; 122 u64 sz; 123 }; 124 125 #define PERF_AUXTRACE_INDEX_ENTRY_COUNT 256 126 127 /** 128 * struct auxtrace_index - index of AUX area tracing events within a perf.data 129 * file. 130 * @list: linking a number of arrays of entries 131 * @nr: number of entries 132 * @entries: array of entries 133 */ 134 struct auxtrace_index { 135 struct list_head list; 136 size_t nr; 137 struct auxtrace_index_entry entries[PERF_AUXTRACE_INDEX_ENTRY_COUNT]; 138 }; 139 140 /** 141 * struct auxtrace - session callbacks to allow AUX area data decoding. 142 * @process_event: lets the decoder see all session events 143 * @process_auxtrace_event: process a PERF_RECORD_AUXTRACE event 144 * @flush_events: process any remaining data 145 * @free_events: free resources associated with event processing 146 * @free: free resources associated with the session 147 */ 148 struct auxtrace { 149 int (*process_event)(struct perf_session *session, 150 union perf_event *event, 151 struct perf_sample *sample, 152 struct perf_tool *tool); 153 int (*process_auxtrace_event)(struct perf_session *session, 154 union perf_event *event, 155 struct perf_tool *tool); 156 int (*flush_events)(struct perf_session *session, 157 struct perf_tool *tool); 158 void (*free_events)(struct perf_session *session); 159 void (*free)(struct perf_session *session); 160 }; 161 162 /** 163 * struct auxtrace_buffer - a buffer containing AUX area tracing data. 164 * @list: buffers are queued in a list held by struct auxtrace_queue 165 * @size: size of the buffer in bytes 166 * @pid: in per-thread mode, the pid this buffer is associated with 167 * @tid: in per-thread mode, the tid this buffer is associated with 168 * @cpu: in per-cpu mode, the cpu this buffer is associated with 169 * @data: actual buffer data (can be null if the data has not been loaded) 170 * @data_offset: file offset at which the buffer can be read 171 * @mmap_addr: mmap address at which the buffer can be read 172 * @mmap_size: size of the mmap at @mmap_addr 173 * @data_needs_freeing: @data was malloc'd so free it when it is no longer 174 * needed 175 * @consecutive: the original data was split up and this buffer is consecutive 176 * to the previous buffer 177 * @offset: offset as determined by aux_head / aux_tail members of struct 178 * perf_event_mmap_page 179 * @reference: an implementation-specific reference determined when the data is 180 * recorded 181 * @buffer_nr: used to number each buffer 182 * @use_size: implementation actually only uses this number of bytes 183 * @use_data: implementation actually only uses data starting at this address 184 */ 185 struct auxtrace_buffer { 186 struct list_head list; 187 size_t size; 188 pid_t pid; 189 pid_t tid; 190 int cpu; 191 void *data; 192 off_t data_offset; 193 void *mmap_addr; 194 size_t mmap_size; 195 bool data_needs_freeing; 196 bool consecutive; 197 u64 offset; 198 u64 reference; 199 u64 buffer_nr; 200 size_t use_size; 201 void *use_data; 202 }; 203 204 /** 205 * struct auxtrace_queue - a queue of AUX area tracing data buffers. 206 * @head: head of buffer list 207 * @tid: in per-thread mode, the tid this queue is associated with 208 * @cpu: in per-cpu mode, the cpu this queue is associated with 209 * @set: %true once this queue has been dedicated to a specific thread or cpu 210 * @priv: implementation-specific data 211 */ 212 struct auxtrace_queue { 213 struct list_head head; 214 pid_t tid; 215 int cpu; 216 bool set; 217 void *priv; 218 }; 219 220 /** 221 * struct auxtrace_queues - an array of AUX area tracing queues. 222 * @queue_array: array of queues 223 * @nr_queues: number of queues 224 * @new_data: set whenever new data is queued 225 * @populated: queues have been fully populated using the auxtrace_index 226 * @next_buffer_nr: used to number each buffer 227 */ 228 struct auxtrace_queues { 229 struct auxtrace_queue *queue_array; 230 unsigned int nr_queues; 231 bool new_data; 232 bool populated; 233 u64 next_buffer_nr; 234 }; 235 236 /** 237 * struct auxtrace_heap_item - element of struct auxtrace_heap. 238 * @queue_nr: queue number 239 * @ordinal: value used for sorting (lowest ordinal is top of the heap) expected 240 * to be a timestamp 241 */ 242 struct auxtrace_heap_item { 243 unsigned int queue_nr; 244 u64 ordinal; 245 }; 246 247 /** 248 * struct auxtrace_heap - a heap suitable for sorting AUX area tracing queues. 249 * @heap_array: the heap 250 * @heap_cnt: the number of elements in the heap 251 * @heap_sz: maximum number of elements (grows as needed) 252 */ 253 struct auxtrace_heap { 254 struct auxtrace_heap_item *heap_array; 255 unsigned int heap_cnt; 256 unsigned int heap_sz; 257 }; 258 259 /** 260 * struct auxtrace_mmap - records an mmap of the auxtrace buffer. 261 * @base: address of mapped area 262 * @userpg: pointer to buffer's perf_event_mmap_page 263 * @mask: %0 if @len is not a power of two, otherwise (@len - %1) 264 * @len: size of mapped area 265 * @prev: previous aux_head 266 * @idx: index of this mmap 267 * @tid: tid for a per-thread mmap (also set if there is only 1 tid on a per-cpu 268 * mmap) otherwise %0 269 * @cpu: cpu number for a per-cpu mmap otherwise %-1 270 */ 271 struct auxtrace_mmap { 272 void *base; 273 void *userpg; 274 size_t mask; 275 size_t len; 276 u64 prev; 277 int idx; 278 pid_t tid; 279 int cpu; 280 }; 281 282 /** 283 * struct auxtrace_mmap_params - parameters to set up struct auxtrace_mmap. 284 * @mask: %0 if @len is not a power of two, otherwise (@len - %1) 285 * @offset: file offset of mapped area 286 * @len: size of mapped area 287 * @prot: mmap memory protection 288 * @idx: index of this mmap 289 * @tid: tid for a per-thread mmap (also set if there is only 1 tid on a per-cpu 290 * mmap) otherwise %0 291 * @cpu: cpu number for a per-cpu mmap otherwise %-1 292 */ 293 struct auxtrace_mmap_params { 294 size_t mask; 295 off_t offset; 296 size_t len; 297 int prot; 298 int idx; 299 pid_t tid; 300 int cpu; 301 }; 302 303 /** 304 * struct auxtrace_record - callbacks for recording AUX area data. 305 * @recording_options: validate and process recording options 306 * @info_priv_size: return the size of the private data in auxtrace_info_event 307 * @info_fill: fill-in the private data in auxtrace_info_event 308 * @free: free this auxtrace record structure 309 * @snapshot_start: starting a snapshot 310 * @snapshot_finish: finishing a snapshot 311 * @find_snapshot: find data to snapshot within auxtrace mmap 312 * @parse_snapshot_options: parse snapshot options 313 * @reference: provide a 64-bit reference number for auxtrace_event 314 * @read_finish: called after reading from an auxtrace mmap 315 * @alignment: alignment (if any) for AUX area data 316 */ 317 struct auxtrace_record { 318 int (*recording_options)(struct auxtrace_record *itr, 319 struct evlist *evlist, 320 struct record_opts *opts); 321 size_t (*info_priv_size)(struct auxtrace_record *itr, 322 struct evlist *evlist); 323 int (*info_fill)(struct auxtrace_record *itr, 324 struct perf_session *session, 325 struct perf_record_auxtrace_info *auxtrace_info, 326 size_t priv_size); 327 void (*free)(struct auxtrace_record *itr); 328 int (*snapshot_start)(struct auxtrace_record *itr); 329 int (*snapshot_finish)(struct auxtrace_record *itr); 330 int (*find_snapshot)(struct auxtrace_record *itr, int idx, 331 struct auxtrace_mmap *mm, unsigned char *data, 332 u64 *head, u64 *old); 333 int (*parse_snapshot_options)(struct auxtrace_record *itr, 334 struct record_opts *opts, 335 const char *str); 336 u64 (*reference)(struct auxtrace_record *itr); 337 int (*read_finish)(struct auxtrace_record *itr, int idx); 338 unsigned int alignment; 339 }; 340 341 /** 342 * struct addr_filter - address filter. 343 * @list: list node 344 * @range: true if it is a range filter 345 * @start: true if action is 'filter' or 'start' 346 * @action: 'filter', 'start' or 'stop' ('tracestop' is accepted but converted 347 * to 'stop') 348 * @sym_from: symbol name for the filter address 349 * @sym_to: symbol name that determines the filter size 350 * @sym_from_idx: selects n'th from symbols with the same name (0 means global 351 * and less than 0 means symbol must be unique) 352 * @sym_to_idx: same as @sym_from_idx but for @sym_to 353 * @addr: filter address 354 * @size: filter region size (for range filters) 355 * @filename: DSO file name or NULL for the kernel 356 * @str: allocated string that contains the other string members 357 */ 358 struct addr_filter { 359 struct list_head list; 360 bool range; 361 bool start; 362 const char *action; 363 const char *sym_from; 364 const char *sym_to; 365 int sym_from_idx; 366 int sym_to_idx; 367 u64 addr; 368 u64 size; 369 const char *filename; 370 char *str; 371 }; 372 373 /** 374 * struct addr_filters - list of address filters. 375 * @head: list of address filters 376 * @cnt: number of address filters 377 */ 378 struct addr_filters { 379 struct list_head head; 380 int cnt; 381 }; 382 383 #ifdef HAVE_AUXTRACE_SUPPORT 384 385 /* 386 * In snapshot mode the mmapped page is read-only which makes using 387 * __sync_val_compare_and_swap() problematic. However, snapshot mode expects 388 * the buffer is not updated while the snapshot is made (e.g. Intel PT disables 389 * the event) so there is not a race anyway. 390 */ 391 static inline u64 auxtrace_mmap__read_snapshot_head(struct auxtrace_mmap *mm) 392 { 393 struct perf_event_mmap_page *pc = mm->userpg; 394 u64 head = READ_ONCE(pc->aux_head); 395 396 /* Ensure all reads are done after we read the head */ 397 rmb(); 398 return head; 399 } 400 401 static inline u64 auxtrace_mmap__read_head(struct auxtrace_mmap *mm) 402 { 403 struct perf_event_mmap_page *pc = mm->userpg; 404 #if BITS_PER_LONG == 64 || !defined(HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT) 405 u64 head = READ_ONCE(pc->aux_head); 406 #else 407 u64 head = __sync_val_compare_and_swap(&pc->aux_head, 0, 0); 408 #endif 409 410 /* Ensure all reads are done after we read the head */ 411 rmb(); 412 return head; 413 } 414 415 static inline void auxtrace_mmap__write_tail(struct auxtrace_mmap *mm, u64 tail) 416 { 417 struct perf_event_mmap_page *pc = mm->userpg; 418 #if BITS_PER_LONG != 64 && defined(HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT) 419 u64 old_tail; 420 #endif 421 422 /* Ensure all reads are done before we write the tail out */ 423 mb(); 424 #if BITS_PER_LONG == 64 || !defined(HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT) 425 pc->aux_tail = tail; 426 #else 427 do { 428 old_tail = __sync_val_compare_and_swap(&pc->aux_tail, 0, 0); 429 } while (!__sync_bool_compare_and_swap(&pc->aux_tail, old_tail, tail)); 430 #endif 431 } 432 433 int auxtrace_mmap__mmap(struct auxtrace_mmap *mm, 434 struct auxtrace_mmap_params *mp, 435 void *userpg, int fd); 436 void auxtrace_mmap__munmap(struct auxtrace_mmap *mm); 437 void auxtrace_mmap_params__init(struct auxtrace_mmap_params *mp, 438 off_t auxtrace_offset, 439 unsigned int auxtrace_pages, 440 bool auxtrace_overwrite); 441 void auxtrace_mmap_params__set_idx(struct auxtrace_mmap_params *mp, 442 struct evlist *evlist, int idx, 443 bool per_cpu); 444 445 typedef int (*process_auxtrace_t)(struct perf_tool *tool, 446 struct perf_mmap *map, 447 union perf_event *event, void *data1, 448 size_t len1, void *data2, size_t len2); 449 450 int auxtrace_mmap__read(struct perf_mmap *map, struct auxtrace_record *itr, 451 struct perf_tool *tool, process_auxtrace_t fn); 452 453 int auxtrace_mmap__read_snapshot(struct perf_mmap *map, 454 struct auxtrace_record *itr, 455 struct perf_tool *tool, process_auxtrace_t fn, 456 size_t snapshot_size); 457 458 int auxtrace_queues__init(struct auxtrace_queues *queues); 459 int auxtrace_queues__add_event(struct auxtrace_queues *queues, 460 struct perf_session *session, 461 union perf_event *event, off_t data_offset, 462 struct auxtrace_buffer **buffer_ptr); 463 void auxtrace_queues__free(struct auxtrace_queues *queues); 464 int auxtrace_queues__process_index(struct auxtrace_queues *queues, 465 struct perf_session *session); 466 struct auxtrace_buffer *auxtrace_buffer__next(struct auxtrace_queue *queue, 467 struct auxtrace_buffer *buffer); 468 void *auxtrace_buffer__get_data(struct auxtrace_buffer *buffer, int fd); 469 void auxtrace_buffer__put_data(struct auxtrace_buffer *buffer); 470 void auxtrace_buffer__drop_data(struct auxtrace_buffer *buffer); 471 void auxtrace_buffer__free(struct auxtrace_buffer *buffer); 472 473 int auxtrace_heap__add(struct auxtrace_heap *heap, unsigned int queue_nr, 474 u64 ordinal); 475 void auxtrace_heap__pop(struct auxtrace_heap *heap); 476 void auxtrace_heap__free(struct auxtrace_heap *heap); 477 478 struct auxtrace_cache_entry { 479 struct hlist_node hash; 480 u32 key; 481 }; 482 483 struct auxtrace_cache *auxtrace_cache__new(unsigned int bits, size_t entry_size, 484 unsigned int limit_percent); 485 void auxtrace_cache__free(struct auxtrace_cache *auxtrace_cache); 486 void *auxtrace_cache__alloc_entry(struct auxtrace_cache *c); 487 void auxtrace_cache__free_entry(struct auxtrace_cache *c, void *entry); 488 int auxtrace_cache__add(struct auxtrace_cache *c, u32 key, 489 struct auxtrace_cache_entry *entry); 490 void *auxtrace_cache__lookup(struct auxtrace_cache *c, u32 key); 491 492 struct auxtrace_record *auxtrace_record__init(struct evlist *evlist, 493 int *err); 494 495 int auxtrace_parse_snapshot_options(struct auxtrace_record *itr, 496 struct record_opts *opts, 497 const char *str); 498 int auxtrace_record__options(struct auxtrace_record *itr, 499 struct evlist *evlist, 500 struct record_opts *opts); 501 size_t auxtrace_record__info_priv_size(struct auxtrace_record *itr, 502 struct evlist *evlist); 503 int auxtrace_record__info_fill(struct auxtrace_record *itr, 504 struct perf_session *session, 505 struct perf_record_auxtrace_info *auxtrace_info, 506 size_t priv_size); 507 void auxtrace_record__free(struct auxtrace_record *itr); 508 int auxtrace_record__snapshot_start(struct auxtrace_record *itr); 509 int auxtrace_record__snapshot_finish(struct auxtrace_record *itr, bool on_exit); 510 int auxtrace_record__find_snapshot(struct auxtrace_record *itr, int idx, 511 struct auxtrace_mmap *mm, 512 unsigned char *data, u64 *head, u64 *old); 513 u64 auxtrace_record__reference(struct auxtrace_record *itr); 514 515 int auxtrace_index__auxtrace_event(struct list_head *head, union perf_event *event, 516 off_t file_offset); 517 int auxtrace_index__write(int fd, struct list_head *head); 518 int auxtrace_index__process(int fd, u64 size, struct perf_session *session, 519 bool needs_swap); 520 void auxtrace_index__free(struct list_head *head); 521 522 void auxtrace_synth_error(struct perf_record_auxtrace_error *auxtrace_error, int type, 523 int code, int cpu, pid_t pid, pid_t tid, u64 ip, 524 const char *msg, u64 timestamp); 525 526 int perf_event__synthesize_auxtrace_info(struct auxtrace_record *itr, 527 struct perf_tool *tool, 528 struct perf_session *session, 529 perf_event__handler_t process); 530 int perf_event__process_auxtrace_info(struct perf_session *session, 531 union perf_event *event); 532 s64 perf_event__process_auxtrace(struct perf_session *session, 533 union perf_event *event); 534 int perf_event__process_auxtrace_error(struct perf_session *session, 535 union perf_event *event); 536 int itrace_parse_synth_opts(const struct option *opt, const char *str, 537 int unset); 538 void itrace_synth_opts__set_default(struct itrace_synth_opts *synth_opts, 539 bool no_sample); 540 541 size_t perf_event__fprintf_auxtrace_error(union perf_event *event, FILE *fp); 542 void perf_session__auxtrace_error_inc(struct perf_session *session, 543 union perf_event *event); 544 void events_stats__auxtrace_error_warn(const struct events_stats *stats); 545 546 void addr_filters__init(struct addr_filters *filts); 547 void addr_filters__exit(struct addr_filters *filts); 548 int addr_filters__parse_bare_filter(struct addr_filters *filts, 549 const char *filter); 550 int auxtrace_parse_filters(struct evlist *evlist); 551 552 static inline int auxtrace__process_event(struct perf_session *session, 553 union perf_event *event, 554 struct perf_sample *sample, 555 struct perf_tool *tool) 556 { 557 if (!session->auxtrace) 558 return 0; 559 560 return session->auxtrace->process_event(session, event, sample, tool); 561 } 562 563 static inline int auxtrace__flush_events(struct perf_session *session, 564 struct perf_tool *tool) 565 { 566 if (!session->auxtrace) 567 return 0; 568 569 return session->auxtrace->flush_events(session, tool); 570 } 571 572 static inline void auxtrace__free_events(struct perf_session *session) 573 { 574 if (!session->auxtrace) 575 return; 576 577 return session->auxtrace->free_events(session); 578 } 579 580 static inline void auxtrace__free(struct perf_session *session) 581 { 582 if (!session->auxtrace) 583 return; 584 585 return session->auxtrace->free(session); 586 } 587 588 #define ITRACE_HELP \ 589 " i: synthesize instructions events\n" \ 590 " b: synthesize branches events\n" \ 591 " c: synthesize branches events (calls only)\n" \ 592 " r: synthesize branches events (returns only)\n" \ 593 " x: synthesize transactions events\n" \ 594 " w: synthesize ptwrite events\n" \ 595 " p: synthesize power events\n" \ 596 " e: synthesize error events\n" \ 597 " d: create a debug log\n" \ 598 " g[len]: synthesize a call chain (use with i or x)\n" \ 599 " l[len]: synthesize last branch entries (use with i or x)\n" \ 600 " sNUMBER: skip initial number of events\n" \ 601 " PERIOD[ns|us|ms|i|t]: specify period to sample stream\n" \ 602 " concatenate multiple options. Default is ibxwpe or cewp\n" 603 604 static inline 605 void itrace_synth_opts__set_time_range(struct itrace_synth_opts *opts, 606 struct perf_time_interval *ptime_range, 607 int range_num) 608 { 609 opts->ptime_range = ptime_range; 610 opts->range_num = range_num; 611 } 612 613 static inline 614 void itrace_synth_opts__clear_time_range(struct itrace_synth_opts *opts) 615 { 616 opts->ptime_range = NULL; 617 opts->range_num = 0; 618 } 619 620 #else 621 #include "debug.h" 622 623 static inline struct auxtrace_record * 624 auxtrace_record__init(struct evlist *evlist __maybe_unused, 625 int *err) 626 { 627 *err = 0; 628 return NULL; 629 } 630 631 static inline 632 void auxtrace_record__free(struct auxtrace_record *itr __maybe_unused) 633 { 634 } 635 636 static inline int 637 perf_event__synthesize_auxtrace_info(struct auxtrace_record *itr __maybe_unused, 638 struct perf_tool *tool __maybe_unused, 639 struct perf_session *session __maybe_unused, 640 perf_event__handler_t process __maybe_unused) 641 { 642 return -EINVAL; 643 } 644 645 static inline 646 int auxtrace_record__options(struct auxtrace_record *itr __maybe_unused, 647 struct evlist *evlist __maybe_unused, 648 struct record_opts *opts __maybe_unused) 649 { 650 return 0; 651 } 652 653 #define perf_event__process_auxtrace_info 0 654 #define perf_event__process_auxtrace 0 655 #define perf_event__process_auxtrace_error 0 656 657 static inline 658 void perf_session__auxtrace_error_inc(struct perf_session *session 659 __maybe_unused, 660 union perf_event *event 661 __maybe_unused) 662 { 663 } 664 665 static inline 666 void events_stats__auxtrace_error_warn(const struct events_stats *stats 667 __maybe_unused) 668 { 669 } 670 671 static inline 672 int itrace_parse_synth_opts(const struct option *opt __maybe_unused, 673 const char *str __maybe_unused, 674 int unset __maybe_unused) 675 { 676 pr_err("AUX area tracing not supported\n"); 677 return -EINVAL; 678 } 679 680 static inline 681 int auxtrace_parse_snapshot_options(struct auxtrace_record *itr __maybe_unused, 682 struct record_opts *opts __maybe_unused, 683 const char *str) 684 { 685 if (!str) 686 return 0; 687 pr_err("AUX area tracing not supported\n"); 688 return -EINVAL; 689 } 690 691 static inline 692 int auxtrace__process_event(struct perf_session *session __maybe_unused, 693 union perf_event *event __maybe_unused, 694 struct perf_sample *sample __maybe_unused, 695 struct perf_tool *tool __maybe_unused) 696 { 697 return 0; 698 } 699 700 static inline 701 int auxtrace__flush_events(struct perf_session *session __maybe_unused, 702 struct perf_tool *tool __maybe_unused) 703 { 704 return 0; 705 } 706 707 static inline 708 void auxtrace__free_events(struct perf_session *session __maybe_unused) 709 { 710 } 711 712 static inline 713 void auxtrace_cache__free(struct auxtrace_cache *auxtrace_cache __maybe_unused) 714 { 715 } 716 717 static inline 718 void auxtrace__free(struct perf_session *session __maybe_unused) 719 { 720 } 721 722 static inline 723 int auxtrace_index__write(int fd __maybe_unused, 724 struct list_head *head __maybe_unused) 725 { 726 return -EINVAL; 727 } 728 729 static inline 730 int auxtrace_index__process(int fd __maybe_unused, 731 u64 size __maybe_unused, 732 struct perf_session *session __maybe_unused, 733 bool needs_swap __maybe_unused) 734 { 735 return -EINVAL; 736 } 737 738 static inline 739 void auxtrace_index__free(struct list_head *head __maybe_unused) 740 { 741 } 742 743 static inline 744 int auxtrace_parse_filters(struct evlist *evlist __maybe_unused) 745 { 746 return 0; 747 } 748 749 int auxtrace_mmap__mmap(struct auxtrace_mmap *mm, 750 struct auxtrace_mmap_params *mp, 751 void *userpg, int fd); 752 void auxtrace_mmap__munmap(struct auxtrace_mmap *mm); 753 void auxtrace_mmap_params__init(struct auxtrace_mmap_params *mp, 754 off_t auxtrace_offset, 755 unsigned int auxtrace_pages, 756 bool auxtrace_overwrite); 757 void auxtrace_mmap_params__set_idx(struct auxtrace_mmap_params *mp, 758 struct evlist *evlist, int idx, 759 bool per_cpu); 760 761 #define ITRACE_HELP "" 762 763 static inline 764 void itrace_synth_opts__set_time_range(struct itrace_synth_opts *opts 765 __maybe_unused, 766 struct perf_time_interval *ptime_range 767 __maybe_unused, 768 int range_num __maybe_unused) 769 { 770 } 771 772 static inline 773 void itrace_synth_opts__clear_time_range(struct itrace_synth_opts *opts 774 __maybe_unused) 775 { 776 } 777 778 #endif 779 780 #endif 781