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