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718c602d AH |
1 | /* |
2 | * auxtrace.h: AUX area trace support | |
3 | * Copyright (c) 2013-2015, Intel Corporation. | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms and conditions of the GNU General Public License, | |
7 | * version 2, as published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
12 | * more details. | |
13 | * | |
14 | */ | |
15 | ||
16 | #ifndef __PERF_AUXTRACE_H | |
17 | #define __PERF_AUXTRACE_H | |
18 | ||
19 | #include <sys/types.h> | |
20 | #include <stdbool.h> | |
9e0cc4fe | 21 | #include <stddef.h> |
e5027893 | 22 | #include <linux/list.h> |
718c602d AH |
23 | #include <linux/perf_event.h> |
24 | #include <linux/types.h> | |
25 | ||
26 | #include "../perf.h" | |
85ed4729 | 27 | #include "event.h" |
c446870d | 28 | #include "session.h" |
e31f0d01 | 29 | #include "debug.h" |
718c602d | 30 | |
9e0cc4fe AH |
31 | union perf_event; |
32 | struct perf_session; | |
718c602d | 33 | struct perf_evlist; |
9e0cc4fe | 34 | struct perf_tool; |
f6986c95 | 35 | struct option; |
9e0cc4fe AH |
36 | struct record_opts; |
37 | struct auxtrace_info_event; | |
85ed4729 | 38 | struct events_stats; |
718c602d | 39 | |
73f75fb1 AH |
40 | enum auxtrace_type { |
41 | PERF_AUXTRACE_UNKNOWN, | |
42 | }; | |
43 | ||
f6986c95 AH |
44 | enum itrace_period_type { |
45 | PERF_ITRACE_PERIOD_INSTRUCTIONS, | |
46 | PERF_ITRACE_PERIOD_TICKS, | |
47 | PERF_ITRACE_PERIOD_NANOSECS, | |
48 | }; | |
49 | ||
50 | /** | |
51 | * struct itrace_synth_opts - AUX area tracing synthesis options. | |
52 | * @set: indicates whether or not options have been set | |
53 | * @inject: indicates the event (not just the sample) must be fully synthesized | |
54 | * because 'perf inject' will write it out | |
55 | * @instructions: whether to synthesize 'instructions' events | |
56 | * @branches: whether to synthesize 'branches' events | |
53c76b0e | 57 | * @transactions: whether to synthesize events for transactions |
f6986c95 AH |
58 | * @errors: whether to synthesize decoder error events |
59 | * @dont_decode: whether to skip decoding entirely | |
60 | * @log: write a decoding log | |
61 | * @calls: limit branch samples to calls (can be combined with @returns) | |
62 | * @returns: limit branch samples to returns (can be combined with @calls) | |
63 | * @callchain: add callchain to 'instructions' events | |
64 | * @callchain_sz: maximum callchain size | |
65 | * @period: 'instructions' events period | |
66 | * @period_type: 'instructions' events period type | |
67 | */ | |
68 | struct itrace_synth_opts { | |
69 | bool set; | |
70 | bool inject; | |
71 | bool instructions; | |
72 | bool branches; | |
53c76b0e | 73 | bool transactions; |
f6986c95 AH |
74 | bool errors; |
75 | bool dont_decode; | |
76 | bool log; | |
77 | bool calls; | |
78 | bool returns; | |
79 | bool callchain; | |
80 | unsigned int callchain_sz; | |
81 | unsigned long long period; | |
82 | enum itrace_period_type period_type; | |
83 | }; | |
84 | ||
99fa2984 AH |
85 | /** |
86 | * struct auxtrace_index_entry - indexes a AUX area tracing event within a | |
87 | * perf.data file. | |
88 | * @file_offset: offset within the perf.data file | |
89 | * @sz: size of the event | |
90 | */ | |
91 | struct auxtrace_index_entry { | |
92 | u64 file_offset; | |
93 | u64 sz; | |
94 | }; | |
95 | ||
96 | #define PERF_AUXTRACE_INDEX_ENTRY_COUNT 256 | |
97 | ||
98 | /** | |
99 | * struct auxtrace_index - index of AUX area tracing events within a perf.data | |
100 | * file. | |
101 | * @list: linking a number of arrays of entries | |
102 | * @nr: number of entries | |
103 | * @entries: array of entries | |
104 | */ | |
105 | struct auxtrace_index { | |
106 | struct list_head list; | |
107 | size_t nr; | |
108 | struct auxtrace_index_entry entries[PERF_AUXTRACE_INDEX_ENTRY_COUNT]; | |
109 | }; | |
110 | ||
c446870d AH |
111 | /** |
112 | * struct auxtrace - session callbacks to allow AUX area data decoding. | |
113 | * @process_event: lets the decoder see all session events | |
114 | * @flush_events: process any remaining data | |
115 | * @free_events: free resources associated with event processing | |
116 | * @free: free resources associated with the session | |
117 | */ | |
118 | struct auxtrace { | |
119 | int (*process_event)(struct perf_session *session, | |
120 | union perf_event *event, | |
121 | struct perf_sample *sample, | |
122 | struct perf_tool *tool); | |
73f75fb1 AH |
123 | int (*process_auxtrace_event)(struct perf_session *session, |
124 | union perf_event *event, | |
125 | struct perf_tool *tool); | |
c446870d AH |
126 | int (*flush_events)(struct perf_session *session, |
127 | struct perf_tool *tool); | |
128 | void (*free_events)(struct perf_session *session); | |
129 | void (*free)(struct perf_session *session); | |
130 | }; | |
131 | ||
e5027893 AH |
132 | /** |
133 | * struct auxtrace_buffer - a buffer containing AUX area tracing data. | |
134 | * @list: buffers are queued in a list held by struct auxtrace_queue | |
135 | * @size: size of the buffer in bytes | |
136 | * @pid: in per-thread mode, the pid this buffer is associated with | |
137 | * @tid: in per-thread mode, the tid this buffer is associated with | |
138 | * @cpu: in per-cpu mode, the cpu this buffer is associated with | |
139 | * @data: actual buffer data (can be null if the data has not been loaded) | |
140 | * @data_offset: file offset at which the buffer can be read | |
141 | * @mmap_addr: mmap address at which the buffer can be read | |
142 | * @mmap_size: size of the mmap at @mmap_addr | |
143 | * @data_needs_freeing: @data was malloc'd so free it when it is no longer | |
144 | * needed | |
145 | * @consecutive: the original data was split up and this buffer is consecutive | |
146 | * to the previous buffer | |
147 | * @offset: offset as determined by aux_head / aux_tail members of struct | |
148 | * perf_event_mmap_page | |
149 | * @reference: an implementation-specific reference determined when the data is | |
150 | * recorded | |
151 | * @buffer_nr: used to number each buffer | |
152 | * @use_size: implementation actually only uses this number of bytes | |
153 | * @use_data: implementation actually only uses data starting at this address | |
154 | */ | |
155 | struct auxtrace_buffer { | |
156 | struct list_head list; | |
157 | size_t size; | |
158 | pid_t pid; | |
159 | pid_t tid; | |
160 | int cpu; | |
161 | void *data; | |
162 | off_t data_offset; | |
163 | void *mmap_addr; | |
164 | size_t mmap_size; | |
165 | bool data_needs_freeing; | |
166 | bool consecutive; | |
167 | u64 offset; | |
168 | u64 reference; | |
169 | u64 buffer_nr; | |
170 | size_t use_size; | |
171 | void *use_data; | |
172 | }; | |
173 | ||
174 | /** | |
175 | * struct auxtrace_queue - a queue of AUX area tracing data buffers. | |
176 | * @head: head of buffer list | |
177 | * @tid: in per-thread mode, the tid this queue is associated with | |
178 | * @cpu: in per-cpu mode, the cpu this queue is associated with | |
179 | * @set: %true once this queue has been dedicated to a specific thread or cpu | |
180 | * @priv: implementation-specific data | |
181 | */ | |
182 | struct auxtrace_queue { | |
183 | struct list_head head; | |
184 | pid_t tid; | |
185 | int cpu; | |
186 | bool set; | |
187 | void *priv; | |
188 | }; | |
189 | ||
190 | /** | |
191 | * struct auxtrace_queues - an array of AUX area tracing queues. | |
192 | * @queue_array: array of queues | |
193 | * @nr_queues: number of queues | |
194 | * @new_data: set whenever new data is queued | |
195 | * @populated: queues have been fully populated using the auxtrace_index | |
196 | * @next_buffer_nr: used to number each buffer | |
197 | */ | |
198 | struct auxtrace_queues { | |
199 | struct auxtrace_queue *queue_array; | |
200 | unsigned int nr_queues; | |
201 | bool new_data; | |
202 | bool populated; | |
203 | u64 next_buffer_nr; | |
204 | }; | |
205 | ||
f9397155 AH |
206 | /** |
207 | * struct auxtrace_heap_item - element of struct auxtrace_heap. | |
208 | * @queue_nr: queue number | |
209 | * @ordinal: value used for sorting (lowest ordinal is top of the heap) expected | |
210 | * to be a timestamp | |
211 | */ | |
212 | struct auxtrace_heap_item { | |
213 | unsigned int queue_nr; | |
214 | u64 ordinal; | |
215 | }; | |
216 | ||
217 | /** | |
218 | * struct auxtrace_heap - a heap suitable for sorting AUX area tracing queues. | |
219 | * @heap_array: the heap | |
220 | * @heap_cnt: the number of elements in the heap | |
221 | * @heap_sz: maximum number of elements (grows as needed) | |
222 | */ | |
223 | struct auxtrace_heap { | |
224 | struct auxtrace_heap_item *heap_array; | |
225 | unsigned int heap_cnt; | |
226 | unsigned int heap_sz; | |
227 | }; | |
228 | ||
718c602d AH |
229 | /** |
230 | * struct auxtrace_mmap - records an mmap of the auxtrace buffer. | |
231 | * @base: address of mapped area | |
232 | * @userpg: pointer to buffer's perf_event_mmap_page | |
233 | * @mask: %0 if @len is not a power of two, otherwise (@len - %1) | |
234 | * @len: size of mapped area | |
235 | * @prev: previous aux_head | |
236 | * @idx: index of this mmap | |
237 | * @tid: tid for a per-thread mmap (also set if there is only 1 tid on a per-cpu | |
238 | * mmap) otherwise %0 | |
239 | * @cpu: cpu number for a per-cpu mmap otherwise %-1 | |
240 | */ | |
241 | struct auxtrace_mmap { | |
242 | void *base; | |
243 | void *userpg; | |
244 | size_t mask; | |
245 | size_t len; | |
246 | u64 prev; | |
247 | int idx; | |
248 | pid_t tid; | |
249 | int cpu; | |
250 | }; | |
251 | ||
252 | /** | |
253 | * struct auxtrace_mmap_params - parameters to set up struct auxtrace_mmap. | |
254 | * @mask: %0 if @len is not a power of two, otherwise (@len - %1) | |
255 | * @offset: file offset of mapped area | |
256 | * @len: size of mapped area | |
257 | * @prot: mmap memory protection | |
258 | * @idx: index of this mmap | |
259 | * @tid: tid for a per-thread mmap (also set if there is only 1 tid on a per-cpu | |
260 | * mmap) otherwise %0 | |
261 | * @cpu: cpu number for a per-cpu mmap otherwise %-1 | |
262 | */ | |
263 | struct auxtrace_mmap_params { | |
264 | size_t mask; | |
265 | off_t offset; | |
266 | size_t len; | |
267 | int prot; | |
268 | int idx; | |
269 | pid_t tid; | |
270 | int cpu; | |
271 | }; | |
272 | ||
9e0cc4fe AH |
273 | /** |
274 | * struct auxtrace_record - callbacks for recording AUX area data. | |
275 | * @recording_options: validate and process recording options | |
276 | * @info_priv_size: return the size of the private data in auxtrace_info_event | |
277 | * @info_fill: fill-in the private data in auxtrace_info_event | |
278 | * @free: free this auxtrace record structure | |
d20031bb AH |
279 | * @snapshot_start: starting a snapshot |
280 | * @snapshot_finish: finishing a snapshot | |
281 | * @find_snapshot: find data to snapshot within auxtrace mmap | |
282 | * @parse_snapshot_options: parse snapshot options | |
9e0cc4fe AH |
283 | * @reference: provide a 64-bit reference number for auxtrace_event |
284 | * @read_finish: called after reading from an auxtrace mmap | |
285 | */ | |
286 | struct auxtrace_record { | |
287 | int (*recording_options)(struct auxtrace_record *itr, | |
288 | struct perf_evlist *evlist, | |
289 | struct record_opts *opts); | |
290 | size_t (*info_priv_size)(struct auxtrace_record *itr); | |
291 | int (*info_fill)(struct auxtrace_record *itr, | |
292 | struct perf_session *session, | |
293 | struct auxtrace_info_event *auxtrace_info, | |
294 | size_t priv_size); | |
295 | void (*free)(struct auxtrace_record *itr); | |
d20031bb AH |
296 | int (*snapshot_start)(struct auxtrace_record *itr); |
297 | int (*snapshot_finish)(struct auxtrace_record *itr); | |
298 | int (*find_snapshot)(struct auxtrace_record *itr, int idx, | |
299 | struct auxtrace_mmap *mm, unsigned char *data, | |
300 | u64 *head, u64 *old); | |
301 | int (*parse_snapshot_options)(struct auxtrace_record *itr, | |
302 | struct record_opts *opts, | |
303 | const char *str); | |
9e0cc4fe AH |
304 | u64 (*reference)(struct auxtrace_record *itr); |
305 | int (*read_finish)(struct auxtrace_record *itr, int idx); | |
306 | }; | |
307 | ||
e31f0d01 AH |
308 | #ifdef HAVE_AUXTRACE_SUPPORT |
309 | ||
d20031bb AH |
310 | /* |
311 | * In snapshot mode the mmapped page is read-only which makes using | |
312 | * __sync_val_compare_and_swap() problematic. However, snapshot mode expects | |
313 | * the buffer is not updated while the snapshot is made (e.g. Intel PT disables | |
314 | * the event) so there is not a race anyway. | |
315 | */ | |
316 | static inline u64 auxtrace_mmap__read_snapshot_head(struct auxtrace_mmap *mm) | |
317 | { | |
318 | struct perf_event_mmap_page *pc = mm->userpg; | |
319 | u64 head = ACCESS_ONCE(pc->aux_head); | |
320 | ||
321 | /* Ensure all reads are done after we read the head */ | |
322 | rmb(); | |
323 | return head; | |
324 | } | |
325 | ||
718c602d AH |
326 | static inline u64 auxtrace_mmap__read_head(struct auxtrace_mmap *mm) |
327 | { | |
328 | struct perf_event_mmap_page *pc = mm->userpg; | |
329 | #if BITS_PER_LONG == 64 || !defined(HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT) | |
330 | u64 head = ACCESS_ONCE(pc->aux_head); | |
331 | #else | |
332 | u64 head = __sync_val_compare_and_swap(&pc->aux_head, 0, 0); | |
333 | #endif | |
334 | ||
335 | /* Ensure all reads are done after we read the head */ | |
336 | rmb(); | |
337 | return head; | |
338 | } | |
339 | ||
340 | static inline void auxtrace_mmap__write_tail(struct auxtrace_mmap *mm, u64 tail) | |
341 | { | |
342 | struct perf_event_mmap_page *pc = mm->userpg; | |
343 | #if BITS_PER_LONG != 64 && defined(HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT) | |
344 | u64 old_tail; | |
345 | #endif | |
346 | ||
347 | /* Ensure all reads are done before we write the tail out */ | |
348 | mb(); | |
349 | #if BITS_PER_LONG == 64 || !defined(HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT) | |
350 | pc->aux_tail = tail; | |
351 | #else | |
352 | do { | |
353 | old_tail = __sync_val_compare_and_swap(&pc->aux_tail, 0, 0); | |
354 | } while (!__sync_bool_compare_and_swap(&pc->aux_tail, old_tail, tail)); | |
355 | #endif | |
356 | } | |
357 | ||
358 | int auxtrace_mmap__mmap(struct auxtrace_mmap *mm, | |
359 | struct auxtrace_mmap_params *mp, | |
360 | void *userpg, int fd); | |
361 | void auxtrace_mmap__munmap(struct auxtrace_mmap *mm); | |
362 | void auxtrace_mmap_params__init(struct auxtrace_mmap_params *mp, | |
363 | off_t auxtrace_offset, | |
364 | unsigned int auxtrace_pages, | |
365 | bool auxtrace_overwrite); | |
366 | void auxtrace_mmap_params__set_idx(struct auxtrace_mmap_params *mp, | |
367 | struct perf_evlist *evlist, int idx, | |
368 | bool per_cpu); | |
369 | ||
9e0cc4fe AH |
370 | typedef int (*process_auxtrace_t)(struct perf_tool *tool, |
371 | union perf_event *event, void *data1, | |
372 | size_t len1, void *data2, size_t len2); | |
373 | ||
374 | int auxtrace_mmap__read(struct auxtrace_mmap *mm, struct auxtrace_record *itr, | |
375 | struct perf_tool *tool, process_auxtrace_t fn); | |
376 | ||
d20031bb AH |
377 | int auxtrace_mmap__read_snapshot(struct auxtrace_mmap *mm, |
378 | struct auxtrace_record *itr, | |
379 | struct perf_tool *tool, process_auxtrace_t fn, | |
380 | size_t snapshot_size); | |
381 | ||
e5027893 AH |
382 | int auxtrace_queues__init(struct auxtrace_queues *queues); |
383 | int auxtrace_queues__add_event(struct auxtrace_queues *queues, | |
384 | struct perf_session *session, | |
385 | union perf_event *event, off_t data_offset, | |
386 | struct auxtrace_buffer **buffer_ptr); | |
387 | void auxtrace_queues__free(struct auxtrace_queues *queues); | |
99fa2984 AH |
388 | int auxtrace_queues__process_index(struct auxtrace_queues *queues, |
389 | struct perf_session *session); | |
e5027893 AH |
390 | struct auxtrace_buffer *auxtrace_buffer__next(struct auxtrace_queue *queue, |
391 | struct auxtrace_buffer *buffer); | |
392 | void *auxtrace_buffer__get_data(struct auxtrace_buffer *buffer, int fd); | |
393 | void auxtrace_buffer__put_data(struct auxtrace_buffer *buffer); | |
394 | void auxtrace_buffer__drop_data(struct auxtrace_buffer *buffer); | |
395 | void auxtrace_buffer__free(struct auxtrace_buffer *buffer); | |
f9397155 AH |
396 | |
397 | int auxtrace_heap__add(struct auxtrace_heap *heap, unsigned int queue_nr, | |
398 | u64 ordinal); | |
399 | void auxtrace_heap__pop(struct auxtrace_heap *heap); | |
400 | void auxtrace_heap__free(struct auxtrace_heap *heap); | |
401 | ||
c3278f02 AH |
402 | struct auxtrace_cache_entry { |
403 | struct hlist_node hash; | |
404 | u32 key; | |
405 | }; | |
406 | ||
407 | struct auxtrace_cache *auxtrace_cache__new(unsigned int bits, size_t entry_size, | |
408 | unsigned int limit_percent); | |
409 | void auxtrace_cache__free(struct auxtrace_cache *auxtrace_cache); | |
410 | void *auxtrace_cache__alloc_entry(struct auxtrace_cache *c); | |
411 | void auxtrace_cache__free_entry(struct auxtrace_cache *c, void *entry); | |
412 | int auxtrace_cache__add(struct auxtrace_cache *c, u32 key, | |
413 | struct auxtrace_cache_entry *entry); | |
414 | void *auxtrace_cache__lookup(struct auxtrace_cache *c, u32 key); | |
415 | ||
9e0cc4fe AH |
416 | struct auxtrace_record *auxtrace_record__init(struct perf_evlist *evlist, |
417 | int *err); | |
418 | ||
d20031bb AH |
419 | int auxtrace_parse_snapshot_options(struct auxtrace_record *itr, |
420 | struct record_opts *opts, | |
421 | const char *str); | |
9e0cc4fe AH |
422 | int auxtrace_record__options(struct auxtrace_record *itr, |
423 | struct perf_evlist *evlist, | |
424 | struct record_opts *opts); | |
425 | size_t auxtrace_record__info_priv_size(struct auxtrace_record *itr); | |
426 | int auxtrace_record__info_fill(struct auxtrace_record *itr, | |
427 | struct perf_session *session, | |
428 | struct auxtrace_info_event *auxtrace_info, | |
429 | size_t priv_size); | |
430 | void auxtrace_record__free(struct auxtrace_record *itr); | |
d20031bb AH |
431 | int auxtrace_record__snapshot_start(struct auxtrace_record *itr); |
432 | int auxtrace_record__snapshot_finish(struct auxtrace_record *itr); | |
433 | int auxtrace_record__find_snapshot(struct auxtrace_record *itr, int idx, | |
434 | struct auxtrace_mmap *mm, | |
435 | unsigned char *data, u64 *head, u64 *old); | |
9e0cc4fe AH |
436 | u64 auxtrace_record__reference(struct auxtrace_record *itr); |
437 | ||
99fa2984 AH |
438 | int auxtrace_index__auxtrace_event(struct list_head *head, union perf_event *event, |
439 | off_t file_offset); | |
440 | int auxtrace_index__write(int fd, struct list_head *head); | |
441 | int auxtrace_index__process(int fd, u64 size, struct perf_session *session, | |
442 | bool needs_swap); | |
443 | void auxtrace_index__free(struct list_head *head); | |
444 | ||
85ed4729 AH |
445 | void auxtrace_synth_error(struct auxtrace_error_event *auxtrace_error, int type, |
446 | int code, int cpu, pid_t pid, pid_t tid, u64 ip, | |
447 | const char *msg); | |
448 | ||
9e0cc4fe AH |
449 | int perf_event__synthesize_auxtrace_info(struct auxtrace_record *itr, |
450 | struct perf_tool *tool, | |
451 | struct perf_session *session, | |
452 | perf_event__handler_t process); | |
73f75fb1 AH |
453 | int perf_event__process_auxtrace_info(struct perf_tool *tool, |
454 | union perf_event *event, | |
455 | struct perf_session *session); | |
456 | s64 perf_event__process_auxtrace(struct perf_tool *tool, | |
457 | union perf_event *event, | |
458 | struct perf_session *session); | |
85ed4729 AH |
459 | int perf_event__process_auxtrace_error(struct perf_tool *tool, |
460 | union perf_event *event, | |
461 | struct perf_session *session); | |
f6986c95 AH |
462 | int itrace_parse_synth_opts(const struct option *opt, const char *str, |
463 | int unset); | |
464 | void itrace_synth_opts__set_default(struct itrace_synth_opts *synth_opts); | |
9e0cc4fe | 465 | |
85ed4729 AH |
466 | size_t perf_event__fprintf_auxtrace_error(union perf_event *event, FILE *fp); |
467 | void perf_session__auxtrace_error_inc(struct perf_session *session, | |
468 | union perf_event *event); | |
469 | void events_stats__auxtrace_error_warn(const struct events_stats *stats); | |
470 | ||
c446870d AH |
471 | static inline int auxtrace__process_event(struct perf_session *session, |
472 | union perf_event *event, | |
473 | struct perf_sample *sample, | |
474 | struct perf_tool *tool) | |
475 | { | |
476 | if (!session->auxtrace) | |
477 | return 0; | |
478 | ||
479 | return session->auxtrace->process_event(session, event, sample, tool); | |
480 | } | |
481 | ||
482 | static inline int auxtrace__flush_events(struct perf_session *session, | |
483 | struct perf_tool *tool) | |
484 | { | |
485 | if (!session->auxtrace) | |
486 | return 0; | |
487 | ||
488 | return session->auxtrace->flush_events(session, tool); | |
489 | } | |
490 | ||
491 | static inline void auxtrace__free_events(struct perf_session *session) | |
492 | { | |
493 | if (!session->auxtrace) | |
494 | return; | |
495 | ||
496 | return session->auxtrace->free_events(session); | |
497 | } | |
498 | ||
499 | static inline void auxtrace__free(struct perf_session *session) | |
500 | { | |
501 | if (!session->auxtrace) | |
502 | return; | |
503 | ||
504 | return session->auxtrace->free(session); | |
505 | } | |
506 | ||
e31f0d01 AH |
507 | #else |
508 | ||
509 | static inline struct auxtrace_record * | |
510 | auxtrace_record__init(struct perf_evlist *evlist __maybe_unused, | |
511 | int *err __maybe_unused) | |
512 | { | |
513 | *err = 0; | |
514 | return NULL; | |
515 | } | |
516 | ||
517 | static inline | |
518 | void auxtrace_record__free(struct auxtrace_record *itr __maybe_unused) | |
519 | { | |
520 | } | |
521 | ||
522 | static inline int | |
523 | perf_event__synthesize_auxtrace_info(struct auxtrace_record *itr __maybe_unused, | |
524 | struct perf_tool *tool __maybe_unused, | |
525 | struct perf_session *session __maybe_unused, | |
526 | perf_event__handler_t process __maybe_unused) | |
527 | { | |
528 | return -EINVAL; | |
529 | } | |
530 | ||
531 | static inline | |
532 | int auxtrace_record__options(struct auxtrace_record *itr __maybe_unused, | |
533 | struct perf_evlist *evlist __maybe_unused, | |
534 | struct record_opts *opts __maybe_unused) | |
535 | { | |
536 | return 0; | |
537 | } | |
538 | ||
539 | #define perf_event__process_auxtrace_info 0 | |
540 | #define perf_event__process_auxtrace 0 | |
541 | #define perf_event__process_auxtrace_error 0 | |
542 | ||
543 | static inline | |
544 | void perf_session__auxtrace_error_inc(struct perf_session *session | |
545 | __maybe_unused, | |
546 | union perf_event *event | |
547 | __maybe_unused) | |
548 | { | |
549 | } | |
550 | ||
551 | static inline | |
552 | void events_stats__auxtrace_error_warn(const struct events_stats *stats | |
553 | __maybe_unused) | |
554 | { | |
555 | } | |
556 | ||
557 | static inline | |
558 | int itrace_parse_synth_opts(const struct option *opt __maybe_unused, | |
559 | const char *str __maybe_unused, | |
560 | int unset __maybe_unused) | |
561 | { | |
562 | pr_err("AUX area tracing not supported\n"); | |
563 | return -EINVAL; | |
564 | } | |
565 | ||
566 | static inline | |
567 | int auxtrace__process_event(struct perf_session *session __maybe_unused, | |
568 | union perf_event *event __maybe_unused, | |
569 | struct perf_sample *sample __maybe_unused, | |
570 | struct perf_tool *tool __maybe_unused) | |
571 | { | |
572 | return 0; | |
573 | } | |
574 | ||
575 | static inline | |
576 | int auxtrace__flush_events(struct perf_session *session __maybe_unused, | |
577 | struct perf_tool *tool __maybe_unused) | |
578 | { | |
579 | return 0; | |
580 | } | |
581 | ||
582 | static inline | |
583 | void auxtrace__free_events(struct perf_session *session __maybe_unused) | |
584 | { | |
585 | } | |
586 | ||
587 | static inline | |
588 | void auxtrace_cache__free(struct auxtrace_cache *auxtrace_cache __maybe_unused) | |
589 | { | |
590 | } | |
591 | ||
592 | static inline | |
593 | void auxtrace__free(struct perf_session *session __maybe_unused) | |
594 | { | |
595 | } | |
596 | ||
597 | static inline | |
598 | int auxtrace_index__write(int fd __maybe_unused, | |
599 | struct list_head *head __maybe_unused) | |
600 | { | |
601 | return -EINVAL; | |
602 | } | |
603 | ||
604 | static inline | |
605 | int auxtrace_index__process(int fd __maybe_unused, | |
606 | u64 size __maybe_unused, | |
607 | struct perf_session *session __maybe_unused, | |
608 | bool needs_swap __maybe_unused) | |
609 | { | |
610 | return -EINVAL; | |
611 | } | |
612 | ||
613 | static inline | |
614 | void auxtrace_index__free(struct list_head *head __maybe_unused) | |
615 | { | |
616 | } | |
617 | ||
618 | int auxtrace_mmap__mmap(struct auxtrace_mmap *mm, | |
619 | struct auxtrace_mmap_params *mp, | |
620 | void *userpg, int fd); | |
621 | void auxtrace_mmap__munmap(struct auxtrace_mmap *mm); | |
622 | void auxtrace_mmap_params__init(struct auxtrace_mmap_params *mp, | |
623 | off_t auxtrace_offset, | |
624 | unsigned int auxtrace_pages, | |
625 | bool auxtrace_overwrite); | |
626 | void auxtrace_mmap_params__set_idx(struct auxtrace_mmap_params *mp, | |
627 | struct perf_evlist *evlist, int idx, | |
628 | bool per_cpu); | |
629 | ||
630 | #endif | |
631 | ||
718c602d | 632 | #endif |