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Adrian Hunter718c6022015-04-09 18:53:42 +03001/*
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>
Adrian Hunter9e0cc4f2015-04-09 18:53:44 +030021#include <stddef.h>
Adrian Huntere5027892015-04-21 12:21:51 +030022#include <linux/list.h>
Adrian Hunter718c6022015-04-09 18:53:42 +030023#include <linux/perf_event.h>
24#include <linux/types.h>
25
26#include "../perf.h"
Adrian Hunter85ed4722015-04-09 18:53:50 +030027#include "event.h"
Adrian Hunterc4468702015-04-09 18:53:48 +030028#include "session.h"
Adrian Huntere31f0d02015-04-30 17:37:27 +030029#include "debug.h"
Adrian Hunter718c6022015-04-09 18:53:42 +030030
Adrian Hunter9e0cc4f2015-04-09 18:53:44 +030031union perf_event;
32struct perf_session;
Adrian Hunter718c6022015-04-09 18:53:42 +030033struct perf_evlist;
Adrian Hunter9e0cc4f2015-04-09 18:53:44 +030034struct perf_tool;
Adrian Hunterf6986c952015-04-09 18:53:49 +030035struct option;
Adrian Hunter9e0cc4f2015-04-09 18:53:44 +030036struct record_opts;
37struct auxtrace_info_event;
Adrian Hunter85ed4722015-04-09 18:53:50 +030038struct events_stats;
Adrian Hunter718c6022015-04-09 18:53:42 +030039
Adrian Hunter73f75fb2015-04-09 18:53:53 +030040enum auxtrace_type {
41 PERF_AUXTRACE_UNKNOWN,
Adrian Hunter55ea4ab2015-07-17 19:33:36 +030042 PERF_AUXTRACE_INTEL_PT,
Adrian Hunterd0170af2015-07-17 19:33:43 +030043 PERF_AUXTRACE_INTEL_BTS,
Mathieu Poiriera818c562016-09-16 09:50:00 -060044 PERF_AUXTRACE_CS_ETM,
Adrian Hunter73f75fb2015-04-09 18:53:53 +030045};
46
Adrian Hunterf6986c952015-04-09 18:53:49 +030047enum itrace_period_type {
48 PERF_ITRACE_PERIOD_INSTRUCTIONS,
49 PERF_ITRACE_PERIOD_TICKS,
50 PERF_ITRACE_PERIOD_NANOSECS,
51};
52
53/**
54 * struct itrace_synth_opts - AUX area tracing synthesis options.
55 * @set: indicates whether or not options have been set
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
Adrian Hunter53c76b02015-04-30 17:37:28 +030060 * @transactions: whether to synthesize events for transactions
Adrian Hunterf6986c952015-04-09 18:53:49 +030061 * @errors: whether to synthesize decoder error events
62 * @dont_decode: whether to skip decoding entirely
63 * @log: write a decoding log
64 * @calls: limit branch samples to calls (can be combined with @returns)
65 * @returns: limit branch samples to returns (can be combined with @calls)
66 * @callchain: add callchain to 'instructions' events
Adrian Hunter50f736372016-06-23 16:40:57 +030067 * @thread_stack: feed branches to the thread_stack
Adrian Hunter601897b2015-09-25 16:15:39 +030068 * @last_branch: add branch context to 'instruction' events
Adrian Hunterf6986c952015-04-09 18:53:49 +030069 * @callchain_sz: maximum callchain size
Adrian Hunter601897b2015-09-25 16:15:39 +030070 * @last_branch_sz: branch context size
Adrian Hunterf6986c952015-04-09 18:53:49 +030071 * @period: 'instructions' events period
72 * @period_type: 'instructions' events period type
Andi Kleend1706b32016-03-28 10:45:38 -070073 * @initial_skip: skip N events at the beginning.
Adrian Hunterf6986c952015-04-09 18:53:49 +030074 */
75struct itrace_synth_opts {
76 bool set;
77 bool inject;
78 bool instructions;
79 bool branches;
Adrian Hunter53c76b02015-04-30 17:37:28 +030080 bool transactions;
Adrian Hunterf6986c952015-04-09 18:53:49 +030081 bool errors;
82 bool dont_decode;
83 bool log;
84 bool calls;
85 bool returns;
86 bool callchain;
Adrian Hunter50f736372016-06-23 16:40:57 +030087 bool thread_stack;
Adrian Hunter601897b2015-09-25 16:15:39 +030088 bool last_branch;
Adrian Hunterf6986c952015-04-09 18:53:49 +030089 unsigned int callchain_sz;
Adrian Hunter601897b2015-09-25 16:15:39 +030090 unsigned int last_branch_sz;
Adrian Hunterf6986c952015-04-09 18:53:49 +030091 unsigned long long period;
92 enum itrace_period_type period_type;
Andi Kleend1706b32016-03-28 10:45:38 -070093 unsigned long initial_skip;
Adrian Hunterf6986c952015-04-09 18:53:49 +030094};
95
Adrian Hunter718c6022015-04-09 18:53:42 +030096/**
Adrian Hunter99fa2982015-04-30 17:37:25 +030097 * struct auxtrace_index_entry - indexes a AUX area tracing event within a
98 * perf.data file.
99 * @file_offset: offset within the perf.data file
100 * @sz: size of the event
101 */
102struct auxtrace_index_entry {
103 u64 file_offset;
104 u64 sz;
105};
106
107#define PERF_AUXTRACE_INDEX_ENTRY_COUNT 256
108
109/**
110 * struct auxtrace_index - index of AUX area tracing events within a perf.data
111 * file.
112 * @list: linking a number of arrays of entries
113 * @nr: number of entries
114 * @entries: array of entries
115 */
116struct auxtrace_index {
117 struct list_head list;
118 size_t nr;
119 struct auxtrace_index_entry entries[PERF_AUXTRACE_INDEX_ENTRY_COUNT];
120};
121
122/**
Adrian Hunterc4468702015-04-09 18:53:48 +0300123 * struct auxtrace - session callbacks to allow AUX area data decoding.
124 * @process_event: lets the decoder see all session events
125 * @flush_events: process any remaining data
126 * @free_events: free resources associated with event processing
127 * @free: free resources associated with the session
128 */
129struct auxtrace {
130 int (*process_event)(struct perf_session *session,
131 union perf_event *event,
132 struct perf_sample *sample,
133 struct perf_tool *tool);
Adrian Hunter73f75fb2015-04-09 18:53:53 +0300134 int (*process_auxtrace_event)(struct perf_session *session,
135 union perf_event *event,
136 struct perf_tool *tool);
Adrian Hunterc4468702015-04-09 18:53:48 +0300137 int (*flush_events)(struct perf_session *session,
138 struct perf_tool *tool);
139 void (*free_events)(struct perf_session *session);
140 void (*free)(struct perf_session *session);
141};
142
143/**
Adrian Huntere5027892015-04-21 12:21:51 +0300144 * struct auxtrace_buffer - a buffer containing AUX area tracing data.
145 * @list: buffers are queued in a list held by struct auxtrace_queue
146 * @size: size of the buffer in bytes
147 * @pid: in per-thread mode, the pid this buffer is associated with
148 * @tid: in per-thread mode, the tid this buffer is associated with
149 * @cpu: in per-cpu mode, the cpu this buffer is associated with
150 * @data: actual buffer data (can be null if the data has not been loaded)
151 * @data_offset: file offset at which the buffer can be read
152 * @mmap_addr: mmap address at which the buffer can be read
153 * @mmap_size: size of the mmap at @mmap_addr
154 * @data_needs_freeing: @data was malloc'd so free it when it is no longer
155 * needed
156 * @consecutive: the original data was split up and this buffer is consecutive
157 * to the previous buffer
158 * @offset: offset as determined by aux_head / aux_tail members of struct
159 * perf_event_mmap_page
160 * @reference: an implementation-specific reference determined when the data is
161 * recorded
162 * @buffer_nr: used to number each buffer
163 * @use_size: implementation actually only uses this number of bytes
164 * @use_data: implementation actually only uses data starting at this address
165 */
166struct auxtrace_buffer {
167 struct list_head list;
168 size_t size;
169 pid_t pid;
170 pid_t tid;
171 int cpu;
172 void *data;
173 off_t data_offset;
174 void *mmap_addr;
175 size_t mmap_size;
176 bool data_needs_freeing;
177 bool consecutive;
178 u64 offset;
179 u64 reference;
180 u64 buffer_nr;
181 size_t use_size;
182 void *use_data;
183};
184
185/**
186 * struct auxtrace_queue - a queue of AUX area tracing data buffers.
187 * @head: head of buffer list
188 * @tid: in per-thread mode, the tid this queue is associated with
189 * @cpu: in per-cpu mode, the cpu this queue is associated with
190 * @set: %true once this queue has been dedicated to a specific thread or cpu
191 * @priv: implementation-specific data
192 */
193struct auxtrace_queue {
194 struct list_head head;
195 pid_t tid;
196 int cpu;
197 bool set;
198 void *priv;
199};
200
201/**
202 * struct auxtrace_queues - an array of AUX area tracing queues.
203 * @queue_array: array of queues
204 * @nr_queues: number of queues
205 * @new_data: set whenever new data is queued
206 * @populated: queues have been fully populated using the auxtrace_index
207 * @next_buffer_nr: used to number each buffer
208 */
209struct auxtrace_queues {
210 struct auxtrace_queue *queue_array;
211 unsigned int nr_queues;
212 bool new_data;
213 bool populated;
214 u64 next_buffer_nr;
215};
216
217/**
Adrian Hunterf9397152015-04-09 18:53:52 +0300218 * struct auxtrace_heap_item - element of struct auxtrace_heap.
219 * @queue_nr: queue number
220 * @ordinal: value used for sorting (lowest ordinal is top of the heap) expected
221 * to be a timestamp
222 */
223struct auxtrace_heap_item {
224 unsigned int queue_nr;
225 u64 ordinal;
226};
227
228/**
229 * struct auxtrace_heap - a heap suitable for sorting AUX area tracing queues.
230 * @heap_array: the heap
231 * @heap_cnt: the number of elements in the heap
232 * @heap_sz: maximum number of elements (grows as needed)
233 */
234struct auxtrace_heap {
235 struct auxtrace_heap_item *heap_array;
236 unsigned int heap_cnt;
237 unsigned int heap_sz;
238};
239
240/**
Adrian Hunter718c6022015-04-09 18:53:42 +0300241 * struct auxtrace_mmap - records an mmap of the auxtrace buffer.
242 * @base: address of mapped area
243 * @userpg: pointer to buffer's perf_event_mmap_page
244 * @mask: %0 if @len is not a power of two, otherwise (@len - %1)
245 * @len: size of mapped area
246 * @prev: previous aux_head
247 * @idx: index of this mmap
248 * @tid: tid for a per-thread mmap (also set if there is only 1 tid on a per-cpu
249 * mmap) otherwise %0
250 * @cpu: cpu number for a per-cpu mmap otherwise %-1
251 */
252struct auxtrace_mmap {
253 void *base;
254 void *userpg;
255 size_t mask;
256 size_t len;
257 u64 prev;
258 int idx;
259 pid_t tid;
260 int cpu;
261};
262
263/**
264 * struct auxtrace_mmap_params - parameters to set up struct auxtrace_mmap.
265 * @mask: %0 if @len is not a power of two, otherwise (@len - %1)
266 * @offset: file offset of mapped area
267 * @len: size of mapped area
268 * @prot: mmap memory protection
269 * @idx: index of this mmap
270 * @tid: tid for a per-thread mmap (also set if there is only 1 tid on a per-cpu
271 * mmap) otherwise %0
272 * @cpu: cpu number for a per-cpu mmap otherwise %-1
273 */
274struct auxtrace_mmap_params {
275 size_t mask;
276 off_t offset;
277 size_t len;
278 int prot;
279 int idx;
280 pid_t tid;
281 int cpu;
282};
283
Adrian Hunter9e0cc4f2015-04-09 18:53:44 +0300284/**
285 * struct auxtrace_record - callbacks for recording AUX area data.
286 * @recording_options: validate and process recording options
287 * @info_priv_size: return the size of the private data in auxtrace_info_event
288 * @info_fill: fill-in the private data in auxtrace_info_event
289 * @free: free this auxtrace record structure
Adrian Hunterd20031b2015-04-30 17:37:31 +0300290 * @snapshot_start: starting a snapshot
291 * @snapshot_finish: finishing a snapshot
292 * @find_snapshot: find data to snapshot within auxtrace mmap
293 * @parse_snapshot_options: parse snapshot options
Adrian Hunter9e0cc4f2015-04-09 18:53:44 +0300294 * @reference: provide a 64-bit reference number for auxtrace_event
295 * @read_finish: called after reading from an auxtrace mmap
296 */
297struct auxtrace_record {
298 int (*recording_options)(struct auxtrace_record *itr,
299 struct perf_evlist *evlist,
300 struct record_opts *opts);
Mathieu Poirier14a05e12016-01-14 14:46:15 -0700301 size_t (*info_priv_size)(struct auxtrace_record *itr,
302 struct perf_evlist *evlist);
Adrian Hunter9e0cc4f2015-04-09 18:53:44 +0300303 int (*info_fill)(struct auxtrace_record *itr,
304 struct perf_session *session,
305 struct auxtrace_info_event *auxtrace_info,
306 size_t priv_size);
307 void (*free)(struct auxtrace_record *itr);
Adrian Hunterd20031b2015-04-30 17:37:31 +0300308 int (*snapshot_start)(struct auxtrace_record *itr);
309 int (*snapshot_finish)(struct auxtrace_record *itr);
310 int (*find_snapshot)(struct auxtrace_record *itr, int idx,
311 struct auxtrace_mmap *mm, unsigned char *data,
312 u64 *head, u64 *old);
313 int (*parse_snapshot_options)(struct auxtrace_record *itr,
314 struct record_opts *opts,
315 const char *str);
Adrian Hunter9e0cc4f2015-04-09 18:53:44 +0300316 u64 (*reference)(struct auxtrace_record *itr);
317 int (*read_finish)(struct auxtrace_record *itr, int idx);
Adrian Hunter83b2ea22015-05-29 16:33:38 +0300318 unsigned int alignment;
Adrian Hunter9e0cc4f2015-04-09 18:53:44 +0300319};
320
Adrian Hunter1b36c032016-09-23 17:38:39 +0300321/**
322 * struct addr_filter - address filter.
323 * @list: list node
324 * @range: true if it is a range filter
325 * @start: true if action is 'filter' or 'start'
326 * @action: 'filter', 'start' or 'stop' ('tracestop' is accepted but converted
327 * to 'stop')
328 * @sym_from: symbol name for the filter address
329 * @sym_to: symbol name that determines the filter size
330 * @sym_from_idx: selects n'th from symbols with the same name (0 means global
331 * and less than 0 means symbol must be unique)
332 * @sym_to_idx: same as @sym_from_idx but for @sym_to
333 * @addr: filter address
334 * @size: filter region size (for range filters)
335 * @filename: DSO file name or NULL for the kernel
336 * @str: allocated string that contains the other string members
337 */
338struct addr_filter {
339 struct list_head list;
340 bool range;
341 bool start;
342 const char *action;
343 const char *sym_from;
344 const char *sym_to;
345 int sym_from_idx;
346 int sym_to_idx;
347 u64 addr;
348 u64 size;
349 const char *filename;
350 char *str;
351};
352
353/**
354 * struct addr_filters - list of address filters.
355 * @head: list of address filters
356 * @cnt: number of address filters
357 */
358struct addr_filters {
359 struct list_head head;
360 int cnt;
361};
362
Adrian Huntere31f0d02015-04-30 17:37:27 +0300363#ifdef HAVE_AUXTRACE_SUPPORT
364
Adrian Hunterd20031b2015-04-30 17:37:31 +0300365/*
366 * In snapshot mode the mmapped page is read-only which makes using
367 * __sync_val_compare_and_swap() problematic. However, snapshot mode expects
368 * the buffer is not updated while the snapshot is made (e.g. Intel PT disables
369 * the event) so there is not a race anyway.
370 */
371static inline u64 auxtrace_mmap__read_snapshot_head(struct auxtrace_mmap *mm)
372{
373 struct perf_event_mmap_page *pc = mm->userpg;
374 u64 head = ACCESS_ONCE(pc->aux_head);
375
376 /* Ensure all reads are done after we read the head */
377 rmb();
378 return head;
379}
380
Adrian Hunter718c6022015-04-09 18:53:42 +0300381static inline u64 auxtrace_mmap__read_head(struct auxtrace_mmap *mm)
382{
383 struct perf_event_mmap_page *pc = mm->userpg;
384#if BITS_PER_LONG == 64 || !defined(HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT)
385 u64 head = ACCESS_ONCE(pc->aux_head);
386#else
387 u64 head = __sync_val_compare_and_swap(&pc->aux_head, 0, 0);
388#endif
389
390 /* Ensure all reads are done after we read the head */
391 rmb();
392 return head;
393}
394
395static inline void auxtrace_mmap__write_tail(struct auxtrace_mmap *mm, u64 tail)
396{
397 struct perf_event_mmap_page *pc = mm->userpg;
398#if BITS_PER_LONG != 64 && defined(HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT)
399 u64 old_tail;
400#endif
401
402 /* Ensure all reads are done before we write the tail out */
403 mb();
404#if BITS_PER_LONG == 64 || !defined(HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT)
405 pc->aux_tail = tail;
406#else
407 do {
408 old_tail = __sync_val_compare_and_swap(&pc->aux_tail, 0, 0);
409 } while (!__sync_bool_compare_and_swap(&pc->aux_tail, old_tail, tail));
410#endif
411}
412
413int auxtrace_mmap__mmap(struct auxtrace_mmap *mm,
414 struct auxtrace_mmap_params *mp,
415 void *userpg, int fd);
416void auxtrace_mmap__munmap(struct auxtrace_mmap *mm);
417void auxtrace_mmap_params__init(struct auxtrace_mmap_params *mp,
418 off_t auxtrace_offset,
419 unsigned int auxtrace_pages,
420 bool auxtrace_overwrite);
421void auxtrace_mmap_params__set_idx(struct auxtrace_mmap_params *mp,
422 struct perf_evlist *evlist, int idx,
423 bool per_cpu);
424
Adrian Hunter9e0cc4f2015-04-09 18:53:44 +0300425typedef int (*process_auxtrace_t)(struct perf_tool *tool,
426 union perf_event *event, void *data1,
427 size_t len1, void *data2, size_t len2);
428
429int auxtrace_mmap__read(struct auxtrace_mmap *mm, struct auxtrace_record *itr,
430 struct perf_tool *tool, process_auxtrace_t fn);
431
Adrian Hunterd20031b2015-04-30 17:37:31 +0300432int auxtrace_mmap__read_snapshot(struct auxtrace_mmap *mm,
433 struct auxtrace_record *itr,
434 struct perf_tool *tool, process_auxtrace_t fn,
435 size_t snapshot_size);
436
Adrian Huntere5027892015-04-21 12:21:51 +0300437int auxtrace_queues__init(struct auxtrace_queues *queues);
438int auxtrace_queues__add_event(struct auxtrace_queues *queues,
439 struct perf_session *session,
440 union perf_event *event, off_t data_offset,
441 struct auxtrace_buffer **buffer_ptr);
442void auxtrace_queues__free(struct auxtrace_queues *queues);
Adrian Hunter99fa2982015-04-30 17:37:25 +0300443int auxtrace_queues__process_index(struct auxtrace_queues *queues,
444 struct perf_session *session);
Adrian Huntere5027892015-04-21 12:21:51 +0300445struct auxtrace_buffer *auxtrace_buffer__next(struct auxtrace_queue *queue,
446 struct auxtrace_buffer *buffer);
447void *auxtrace_buffer__get_data(struct auxtrace_buffer *buffer, int fd);
448void auxtrace_buffer__put_data(struct auxtrace_buffer *buffer);
449void auxtrace_buffer__drop_data(struct auxtrace_buffer *buffer);
450void auxtrace_buffer__free(struct auxtrace_buffer *buffer);
Adrian Hunterf9397152015-04-09 18:53:52 +0300451
452int auxtrace_heap__add(struct auxtrace_heap *heap, unsigned int queue_nr,
453 u64 ordinal);
454void auxtrace_heap__pop(struct auxtrace_heap *heap);
455void auxtrace_heap__free(struct auxtrace_heap *heap);
456
Adrian Hunterc3278f02015-04-09 18:53:54 +0300457struct auxtrace_cache_entry {
458 struct hlist_node hash;
459 u32 key;
460};
461
462struct auxtrace_cache *auxtrace_cache__new(unsigned int bits, size_t entry_size,
463 unsigned int limit_percent);
464void auxtrace_cache__free(struct auxtrace_cache *auxtrace_cache);
465void *auxtrace_cache__alloc_entry(struct auxtrace_cache *c);
466void auxtrace_cache__free_entry(struct auxtrace_cache *c, void *entry);
467int auxtrace_cache__add(struct auxtrace_cache *c, u32 key,
468 struct auxtrace_cache_entry *entry);
469void *auxtrace_cache__lookup(struct auxtrace_cache *c, u32 key);
470
Adrian Hunter9e0cc4f2015-04-09 18:53:44 +0300471struct auxtrace_record *auxtrace_record__init(struct perf_evlist *evlist,
472 int *err);
473
Adrian Hunterd20031b2015-04-30 17:37:31 +0300474int auxtrace_parse_snapshot_options(struct auxtrace_record *itr,
475 struct record_opts *opts,
476 const char *str);
Adrian Hunter9e0cc4f2015-04-09 18:53:44 +0300477int auxtrace_record__options(struct auxtrace_record *itr,
478 struct perf_evlist *evlist,
479 struct record_opts *opts);
Mathieu Poirier14a05e12016-01-14 14:46:15 -0700480size_t auxtrace_record__info_priv_size(struct auxtrace_record *itr,
481 struct perf_evlist *evlist);
Adrian Hunter9e0cc4f2015-04-09 18:53:44 +0300482int auxtrace_record__info_fill(struct auxtrace_record *itr,
483 struct perf_session *session,
484 struct auxtrace_info_event *auxtrace_info,
485 size_t priv_size);
486void auxtrace_record__free(struct auxtrace_record *itr);
Adrian Hunterd20031b2015-04-30 17:37:31 +0300487int auxtrace_record__snapshot_start(struct auxtrace_record *itr);
488int auxtrace_record__snapshot_finish(struct auxtrace_record *itr);
489int auxtrace_record__find_snapshot(struct auxtrace_record *itr, int idx,
490 struct auxtrace_mmap *mm,
491 unsigned char *data, u64 *head, u64 *old);
Adrian Hunter9e0cc4f2015-04-09 18:53:44 +0300492u64 auxtrace_record__reference(struct auxtrace_record *itr);
493
Adrian Hunter99fa2982015-04-30 17:37:25 +0300494int auxtrace_index__auxtrace_event(struct list_head *head, union perf_event *event,
495 off_t file_offset);
496int auxtrace_index__write(int fd, struct list_head *head);
497int auxtrace_index__process(int fd, u64 size, struct perf_session *session,
498 bool needs_swap);
499void auxtrace_index__free(struct list_head *head);
500
Adrian Hunter85ed4722015-04-09 18:53:50 +0300501void auxtrace_synth_error(struct auxtrace_error_event *auxtrace_error, int type,
502 int code, int cpu, pid_t pid, pid_t tid, u64 ip,
503 const char *msg);
504
Adrian Hunter9e0cc4f2015-04-09 18:53:44 +0300505int perf_event__synthesize_auxtrace_info(struct auxtrace_record *itr,
506 struct perf_tool *tool,
507 struct perf_session *session,
508 perf_event__handler_t process);
Adrian Hunter73f75fb2015-04-09 18:53:53 +0300509int perf_event__process_auxtrace_info(struct perf_tool *tool,
510 union perf_event *event,
511 struct perf_session *session);
512s64 perf_event__process_auxtrace(struct perf_tool *tool,
513 union perf_event *event,
514 struct perf_session *session);
Adrian Hunter85ed4722015-04-09 18:53:50 +0300515int perf_event__process_auxtrace_error(struct perf_tool *tool,
516 union perf_event *event,
517 struct perf_session *session);
Adrian Hunterf6986c952015-04-09 18:53:49 +0300518int itrace_parse_synth_opts(const struct option *opt, const char *str,
519 int unset);
520void itrace_synth_opts__set_default(struct itrace_synth_opts *synth_opts);
Adrian Hunter9e0cc4f2015-04-09 18:53:44 +0300521
Adrian Hunter85ed4722015-04-09 18:53:50 +0300522size_t perf_event__fprintf_auxtrace_error(union perf_event *event, FILE *fp);
523void perf_session__auxtrace_error_inc(struct perf_session *session,
524 union perf_event *event);
525void events_stats__auxtrace_error_warn(const struct events_stats *stats);
526
Adrian Hunter1b36c032016-09-23 17:38:39 +0300527void addr_filters__init(struct addr_filters *filts);
528void addr_filters__exit(struct addr_filters *filts);
529int addr_filters__parse_bare_filter(struct addr_filters *filts,
530 const char *filter);
531int auxtrace_parse_filters(struct perf_evlist *evlist);
532
Adrian Hunterc4468702015-04-09 18:53:48 +0300533static inline int auxtrace__process_event(struct perf_session *session,
534 union perf_event *event,
535 struct perf_sample *sample,
536 struct perf_tool *tool)
537{
538 if (!session->auxtrace)
539 return 0;
540
541 return session->auxtrace->process_event(session, event, sample, tool);
542}
543
544static inline int auxtrace__flush_events(struct perf_session *session,
545 struct perf_tool *tool)
546{
547 if (!session->auxtrace)
548 return 0;
549
550 return session->auxtrace->flush_events(session, tool);
551}
552
553static inline void auxtrace__free_events(struct perf_session *session)
554{
555 if (!session->auxtrace)
556 return;
557
558 return session->auxtrace->free_events(session);
559}
560
561static inline void auxtrace__free(struct perf_session *session)
562{
563 if (!session->auxtrace)
564 return;
565
566 return session->auxtrace->free(session);
567}
568
Adrian Huntere31f0d02015-04-30 17:37:27 +0300569#else
570
571static inline struct auxtrace_record *
572auxtrace_record__init(struct perf_evlist *evlist __maybe_unused,
Arnaldo Carvalho de Melob8f8eb82016-03-22 13:09:37 -0300573 int *err)
Adrian Huntere31f0d02015-04-30 17:37:27 +0300574{
575 *err = 0;
576 return NULL;
577}
578
579static inline
580void auxtrace_record__free(struct auxtrace_record *itr __maybe_unused)
581{
582}
583
584static inline int
585perf_event__synthesize_auxtrace_info(struct auxtrace_record *itr __maybe_unused,
586 struct perf_tool *tool __maybe_unused,
587 struct perf_session *session __maybe_unused,
588 perf_event__handler_t process __maybe_unused)
589{
590 return -EINVAL;
591}
592
593static inline
594int auxtrace_record__options(struct auxtrace_record *itr __maybe_unused,
595 struct perf_evlist *evlist __maybe_unused,
596 struct record_opts *opts __maybe_unused)
597{
598 return 0;
599}
600
601#define perf_event__process_auxtrace_info 0
602#define perf_event__process_auxtrace 0
603#define perf_event__process_auxtrace_error 0
604
605static inline
606void perf_session__auxtrace_error_inc(struct perf_session *session
607 __maybe_unused,
608 union perf_event *event
609 __maybe_unused)
610{
611}
612
613static inline
614void events_stats__auxtrace_error_warn(const struct events_stats *stats
615 __maybe_unused)
616{
617}
618
619static inline
620int itrace_parse_synth_opts(const struct option *opt __maybe_unused,
621 const char *str __maybe_unused,
622 int unset __maybe_unused)
623{
624 pr_err("AUX area tracing not supported\n");
625 return -EINVAL;
626}
627
628static inline
Adrian Hunter2dd6d8a2015-04-30 17:37:32 +0300629int auxtrace_parse_snapshot_options(struct auxtrace_record *itr __maybe_unused,
630 struct record_opts *opts __maybe_unused,
631 const char *str)
632{
633 if (!str)
634 return 0;
635 pr_err("AUX area tracing not supported\n");
636 return -EINVAL;
637}
638
639static inline
Adrian Huntere31f0d02015-04-30 17:37:27 +0300640int auxtrace__process_event(struct perf_session *session __maybe_unused,
641 union perf_event *event __maybe_unused,
642 struct perf_sample *sample __maybe_unused,
643 struct perf_tool *tool __maybe_unused)
644{
645 return 0;
646}
647
648static inline
649int auxtrace__flush_events(struct perf_session *session __maybe_unused,
650 struct perf_tool *tool __maybe_unused)
651{
652 return 0;
653}
654
655static inline
656void auxtrace__free_events(struct perf_session *session __maybe_unused)
657{
658}
659
660static inline
661void auxtrace_cache__free(struct auxtrace_cache *auxtrace_cache __maybe_unused)
662{
663}
664
665static inline
666void auxtrace__free(struct perf_session *session __maybe_unused)
667{
668}
669
670static inline
671int auxtrace_index__write(int fd __maybe_unused,
672 struct list_head *head __maybe_unused)
673{
674 return -EINVAL;
675}
676
677static inline
678int auxtrace_index__process(int fd __maybe_unused,
679 u64 size __maybe_unused,
680 struct perf_session *session __maybe_unused,
681 bool needs_swap __maybe_unused)
682{
683 return -EINVAL;
684}
685
686static inline
687void auxtrace_index__free(struct list_head *head __maybe_unused)
688{
689}
690
Adrian Hunter1b36c032016-09-23 17:38:39 +0300691static inline
692int auxtrace_parse_filters(struct perf_evlist *evlist __maybe_unused)
693{
694 return 0;
695}
696
Adrian Huntere31f0d02015-04-30 17:37:27 +0300697int auxtrace_mmap__mmap(struct auxtrace_mmap *mm,
698 struct auxtrace_mmap_params *mp,
699 void *userpg, int fd);
700void auxtrace_mmap__munmap(struct auxtrace_mmap *mm);
701void auxtrace_mmap_params__init(struct auxtrace_mmap_params *mp,
702 off_t auxtrace_offset,
703 unsigned int auxtrace_pages,
704 bool auxtrace_overwrite);
705void auxtrace_mmap_params__set_idx(struct auxtrace_mmap_params *mp,
706 struct perf_evlist *evlist, int idx,
707 bool per_cpu);
708
709#endif
710
Adrian Hunter718c6022015-04-09 18:53:42 +0300711#endif