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Linux/tools/perf/util/auxtrace.h

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  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 

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