| /* |
| * auxtrace.h: AUX area trace support |
| * Copyright (c) 2013-2015, Intel Corporation. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms and conditions of the GNU General Public License, |
| * version 2, as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| */ |
| |
| #ifndef __PERF_AUXTRACE_H |
| #define __PERF_AUXTRACE_H |
| |
| #include <sys/types.h> |
| #include <errno.h> |
| #include <stdbool.h> |
| #include <stddef.h> |
| #include <linux/list.h> |
| #include <linux/perf_event.h> |
| #include <linux/types.h> |
| #include <asm/bitsperlong.h> |
| |
| #include "../perf.h" |
| #include "event.h" |
| #include "session.h" |
| #include "debug.h" |
| |
| union perf_event; |
| struct perf_session; |
| struct perf_evlist; |
| struct perf_tool; |
| struct perf_mmap; |
| struct option; |
| struct record_opts; |
| struct auxtrace_info_event; |
| struct events_stats; |
| |
| /* Auxtrace records must have the same alignment as perf event records */ |
| #define PERF_AUXTRACE_RECORD_ALIGNMENT 8 |
| |
| enum auxtrace_type { |
| PERF_AUXTRACE_UNKNOWN, |
| PERF_AUXTRACE_INTEL_PT, |
| PERF_AUXTRACE_INTEL_BTS, |
| PERF_AUXTRACE_CS_ETM, |
| PERF_AUXTRACE_ARM_SPE, |
| PERF_AUXTRACE_S390_CPUMSF, |
| }; |
| |
| enum itrace_period_type { |
| PERF_ITRACE_PERIOD_INSTRUCTIONS, |
| PERF_ITRACE_PERIOD_TICKS, |
| PERF_ITRACE_PERIOD_NANOSECS, |
| }; |
| |
| /** |
| * struct itrace_synth_opts - AUX area tracing synthesis options. |
| * @set: indicates whether or not options have been set |
| * @default_no_sample: Default to no sampling. |
| * @inject: indicates the event (not just the sample) must be fully synthesized |
| * because 'perf inject' will write it out |
| * @instructions: whether to synthesize 'instructions' events |
| * @branches: whether to synthesize 'branches' events |
| * @transactions: whether to synthesize events for transactions |
| * @ptwrites: whether to synthesize events for ptwrites |
| * @pwr_events: whether to synthesize power events |
| * @errors: whether to synthesize decoder error events |
| * @dont_decode: whether to skip decoding entirely |
| * @log: write a decoding log |
| * @calls: limit branch samples to calls (can be combined with @returns) |
| * @returns: limit branch samples to returns (can be combined with @calls) |
| * @callchain: add callchain to 'instructions' events |
| * @thread_stack: feed branches to the thread_stack |
| * @last_branch: add branch context to 'instruction' events |
| * @callchain_sz: maximum callchain size |
| * @last_branch_sz: branch context size |
| * @period: 'instructions' events period |
| * @period_type: 'instructions' events period type |
| * @initial_skip: skip N events at the beginning. |
| * @cpu_bitmap: CPUs for which to synthesize events, or NULL for all |
| */ |
| struct itrace_synth_opts { |
| bool set; |
| bool default_no_sample; |
| bool inject; |
| bool instructions; |
| bool branches; |
| bool transactions; |
| bool ptwrites; |
| bool pwr_events; |
| bool errors; |
| bool dont_decode; |
| bool log; |
| bool calls; |
| bool returns; |
| bool callchain; |
| bool thread_stack; |
| bool last_branch; |
| unsigned int callchain_sz; |
| unsigned int last_branch_sz; |
| unsigned long long period; |
| enum itrace_period_type period_type; |
| unsigned long initial_skip; |
| unsigned long *cpu_bitmap; |
| }; |
| |
| /** |
| * struct auxtrace_index_entry - indexes a AUX area tracing event within a |
| * perf.data file. |
| * @file_offset: offset within the perf.data file |
| * @sz: size of the event |
| */ |
| struct auxtrace_index_entry { |
| u64 file_offset; |
| u64 sz; |
| }; |
| |
| #define PERF_AUXTRACE_INDEX_ENTRY_COUNT 256 |
| |
| /** |
| * struct auxtrace_index - index of AUX area tracing events within a perf.data |
| * file. |
| * @list: linking a number of arrays of entries |
| * @nr: number of entries |
| * @entries: array of entries |
| */ |
| struct auxtrace_index { |
| struct list_head list; |
| size_t nr; |
| struct auxtrace_index_entry entries[PERF_AUXTRACE_INDEX_ENTRY_COUNT]; |
| }; |
| |
| /** |
| * struct auxtrace - session callbacks to allow AUX area data decoding. |
| * @process_event: lets the decoder see all session events |
| * @process_auxtrace_event: process a PERF_RECORD_AUXTRACE event |
| * @flush_events: process any remaining data |
| * @free_events: free resources associated with event processing |
| * @free: free resources associated with the session |
| */ |
| struct auxtrace { |
| int (*process_event)(struct perf_session *session, |
| union perf_event *event, |
| struct perf_sample *sample, |
| struct perf_tool *tool); |
| int (*process_auxtrace_event)(struct perf_session *session, |
| union perf_event *event, |
| struct perf_tool *tool); |
| int (*flush_events)(struct perf_session *session, |
| struct perf_tool *tool); |
| void (*free_events)(struct perf_session *session); |
| void (*free)(struct perf_session *session); |
| }; |
| |
| /** |
| * struct auxtrace_buffer - a buffer containing AUX area tracing data. |
| * @list: buffers are queued in a list held by struct auxtrace_queue |
| * @size: size of the buffer in bytes |
| * @pid: in per-thread mode, the pid this buffer is associated with |
| * @tid: in per-thread mode, the tid this buffer is associated with |
| * @cpu: in per-cpu mode, the cpu this buffer is associated with |
| * @data: actual buffer data (can be null if the data has not been loaded) |
| * @data_offset: file offset at which the buffer can be read |
| * @mmap_addr: mmap address at which the buffer can be read |
| * @mmap_size: size of the mmap at @mmap_addr |
| * @data_needs_freeing: @data was malloc'd so free it when it is no longer |
| * needed |
| * @consecutive: the original data was split up and this buffer is consecutive |
| * to the previous buffer |
| * @offset: offset as determined by aux_head / aux_tail members of struct |
| * perf_event_mmap_page |
| * @reference: an implementation-specific reference determined when the data is |
| * recorded |
| * @buffer_nr: used to number each buffer |
| * @use_size: implementation actually only uses this number of bytes |
| * @use_data: implementation actually only uses data starting at this address |
| */ |
| struct auxtrace_buffer { |
| struct list_head list; |
| size_t size; |
| pid_t pid; |
| pid_t tid; |
| int cpu; |
| void *data; |
| off_t data_offset; |
| void *mmap_addr; |
| size_t mmap_size; |
| bool data_needs_freeing; |
| bool consecutive; |
| u64 offset; |
| u64 reference; |
| u64 buffer_nr; |
| size_t use_size; |
| void *use_data; |
| }; |
| |
| /** |
| * struct auxtrace_queue - a queue of AUX area tracing data buffers. |
| * @head: head of buffer list |
| * @tid: in per-thread mode, the tid this queue is associated with |
| * @cpu: in per-cpu mode, the cpu this queue is associated with |
| * @set: %true once this queue has been dedicated to a specific thread or cpu |
| * @priv: implementation-specific data |
| */ |
| struct auxtrace_queue { |
| struct list_head head; |
| pid_t tid; |
| int cpu; |
| bool set; |
| void *priv; |
| }; |
| |
| /** |
| * struct auxtrace_queues - an array of AUX area tracing queues. |
| * @queue_array: array of queues |
| * @nr_queues: number of queues |
| * @new_data: set whenever new data is queued |
| * @populated: queues have been fully populated using the auxtrace_index |
| * @next_buffer_nr: used to number each buffer |
| */ |
| struct auxtrace_queues { |
| struct auxtrace_queue *queue_array; |
| unsigned int nr_queues; |
| bool new_data; |
| bool populated; |
| u64 next_buffer_nr; |
| }; |
| |
| /** |
| * struct auxtrace_heap_item - element of struct auxtrace_heap. |
| * @queue_nr: queue number |
| * @ordinal: value used for sorting (lowest ordinal is top of the heap) expected |
| * to be a timestamp |
| */ |
| struct auxtrace_heap_item { |
| unsigned int queue_nr; |
| u64 ordinal; |
| }; |
| |
| /** |
| * struct auxtrace_heap - a heap suitable for sorting AUX area tracing queues. |
| * @heap_array: the heap |
| * @heap_cnt: the number of elements in the heap |
| * @heap_sz: maximum number of elements (grows as needed) |
| */ |
| struct auxtrace_heap { |
| struct auxtrace_heap_item *heap_array; |
| unsigned int heap_cnt; |
| unsigned int heap_sz; |
| }; |
| |
| /** |
| * struct auxtrace_mmap - records an mmap of the auxtrace buffer. |
| * @base: address of mapped area |
| * @userpg: pointer to buffer's perf_event_mmap_page |
| * @mask: %0 if @len is not a power of two, otherwise (@len - %1) |
| * @len: size of mapped area |
| * @prev: previous aux_head |
| * @idx: index of this mmap |
| * @tid: tid for a per-thread mmap (also set if there is only 1 tid on a per-cpu |
| * mmap) otherwise %0 |
| * @cpu: cpu number for a per-cpu mmap otherwise %-1 |
| */ |
| struct auxtrace_mmap { |
| void *base; |
| void *userpg; |
| size_t mask; |
| size_t len; |
| u64 prev; |
| int idx; |
| pid_t tid; |
| int cpu; |
| }; |
| |
| /** |
| * struct auxtrace_mmap_params - parameters to set up struct auxtrace_mmap. |
| * @mask: %0 if @len is not a power of two, otherwise (@len - %1) |
| * @offset: file offset of mapped area |
| * @len: size of mapped area |
| * @prot: mmap memory protection |
| * @idx: index of this mmap |
| * @tid: tid for a per-thread mmap (also set if there is only 1 tid on a per-cpu |
| * mmap) otherwise %0 |
| * @cpu: cpu number for a per-cpu mmap otherwise %-1 |
| */ |
| struct auxtrace_mmap_params { |
| size_t mask; |
| off_t offset; |
| size_t len; |
| int prot; |
| int idx; |
| pid_t tid; |
| int cpu; |
| }; |
| |
| /** |
| * struct auxtrace_record - callbacks for recording AUX area data. |
| * @recording_options: validate and process recording options |
| * @info_priv_size: return the size of the private data in auxtrace_info_event |
| * @info_fill: fill-in the private data in auxtrace_info_event |
| * @free: free this auxtrace record structure |
| * @snapshot_start: starting a snapshot |
| * @snapshot_finish: finishing a snapshot |
| * @find_snapshot: find data to snapshot within auxtrace mmap |
| * @parse_snapshot_options: parse snapshot options |
| * @reference: provide a 64-bit reference number for auxtrace_event |
| * @read_finish: called after reading from an auxtrace mmap |
| * @alignment: alignment (if any) for AUX area data |
| */ |
| struct auxtrace_record { |
| int (*recording_options)(struct auxtrace_record *itr, |
| struct perf_evlist *evlist, |
| struct record_opts *opts); |
| size_t (*info_priv_size)(struct auxtrace_record *itr, |
| struct perf_evlist *evlist); |
| int (*info_fill)(struct auxtrace_record *itr, |
| struct perf_session *session, |
| struct auxtrace_info_event *auxtrace_info, |
| size_t priv_size); |
| void (*free)(struct auxtrace_record *itr); |
| int (*snapshot_start)(struct auxtrace_record *itr); |
| int (*snapshot_finish)(struct auxtrace_record *itr); |
| int (*find_snapshot)(struct auxtrace_record *itr, int idx, |
| struct auxtrace_mmap *mm, unsigned char *data, |
| u64 *head, u64 *old); |
| int (*parse_snapshot_options)(struct auxtrace_record *itr, |
| struct record_opts *opts, |
| const char *str); |
| u64 (*reference)(struct auxtrace_record *itr); |
| int (*read_finish)(struct auxtrace_record *itr, int idx); |
| unsigned int alignment; |
| }; |
| |
| /** |
| * struct addr_filter - address filter. |
| * @list: list node |
| * @range: true if it is a range filter |
| * @start: true if action is 'filter' or 'start' |
| * @action: 'filter', 'start' or 'stop' ('tracestop' is accepted but converted |
| * to 'stop') |
| * @sym_from: symbol name for the filter address |
| * @sym_to: symbol name that determines the filter size |
| * @sym_from_idx: selects n'th from symbols with the same name (0 means global |
| * and less than 0 means symbol must be unique) |
| * @sym_to_idx: same as @sym_from_idx but for @sym_to |
| * @addr: filter address |
| * @size: filter region size (for range filters) |
| * @filename: DSO file name or NULL for the kernel |
| * @str: allocated string that contains the other string members |
| */ |
| struct addr_filter { |
| struct list_head list; |
| bool range; |
| bool start; |
| const char *action; |
| const char *sym_from; |
| const char *sym_to; |
| int sym_from_idx; |
| int sym_to_idx; |
| u64 addr; |
| u64 size; |
| const char *filename; |
| char *str; |
| }; |
| |
| /** |
| * struct addr_filters - list of address filters. |
| * @head: list of address filters |
| * @cnt: number of address filters |
| */ |
| struct addr_filters { |
| struct list_head head; |
| int cnt; |
| }; |
| |
| #ifdef HAVE_AUXTRACE_SUPPORT |
| |
| /* |
| * In snapshot mode the mmapped page is read-only which makes using |
| * __sync_val_compare_and_swap() problematic. However, snapshot mode expects |
| * the buffer is not updated while the snapshot is made (e.g. Intel PT disables |
| * the event) so there is not a race anyway. |
| */ |
| static inline u64 auxtrace_mmap__read_snapshot_head(struct auxtrace_mmap *mm) |
| { |
| struct perf_event_mmap_page *pc = mm->userpg; |
| u64 head = READ_ONCE(pc->aux_head); |
| |
| /* Ensure all reads are done after we read the head */ |
| rmb(); |
| return head; |
| } |
| |
| static inline u64 auxtrace_mmap__read_head(struct auxtrace_mmap *mm) |
| { |
| struct perf_event_mmap_page *pc = mm->userpg; |
| #if BITS_PER_LONG == 64 || !defined(HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT) |
| u64 head = READ_ONCE(pc->aux_head); |
| #else |
| u64 head = __sync_val_compare_and_swap(&pc->aux_head, 0, 0); |
| #endif |
| |
| /* Ensure all reads are done after we read the head */ |
| rmb(); |
| return head; |
| } |
| |
| static inline void auxtrace_mmap__write_tail(struct auxtrace_mmap *mm, u64 tail) |
| { |
| struct perf_event_mmap_page *pc = mm->userpg; |
| #if BITS_PER_LONG != 64 && defined(HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT) |
| u64 old_tail; |
| #endif |
| |
| /* Ensure all reads are done before we write the tail out */ |
| mb(); |
| #if BITS_PER_LONG == 64 || !defined(HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT) |
| pc->aux_tail = tail; |
| #else |
| do { |
| old_tail = __sync_val_compare_and_swap(&pc->aux_tail, 0, 0); |
| } while (!__sync_bool_compare_and_swap(&pc->aux_tail, old_tail, tail)); |
| #endif |
| } |
| |
| int auxtrace_mmap__mmap(struct auxtrace_mmap *mm, |
| struct auxtrace_mmap_params *mp, |
| void *userpg, int fd); |
| void auxtrace_mmap__munmap(struct auxtrace_mmap *mm); |
| void auxtrace_mmap_params__init(struct auxtrace_mmap_params *mp, |
| off_t auxtrace_offset, |
| unsigned int auxtrace_pages, |
| bool auxtrace_overwrite); |
| void auxtrace_mmap_params__set_idx(struct auxtrace_mmap_params *mp, |
| struct perf_evlist *evlist, int idx, |
| bool per_cpu); |
| |
| typedef int (*process_auxtrace_t)(struct perf_tool *tool, |
| struct perf_mmap *map, |
| union perf_event *event, void *data1, |
| size_t len1, void *data2, size_t len2); |
| |
| int auxtrace_mmap__read(struct perf_mmap *map, struct auxtrace_record *itr, |
| struct perf_tool *tool, process_auxtrace_t fn); |
| |
| int auxtrace_mmap__read_snapshot(struct perf_mmap *map, |
| struct auxtrace_record *itr, |
| struct perf_tool *tool, process_auxtrace_t fn, |
| size_t snapshot_size); |
| |
| int auxtrace_queues__init(struct auxtrace_queues *queues); |
| int auxtrace_queues__add_event(struct auxtrace_queues *queues, |
| struct perf_session *session, |
| union perf_event *event, off_t data_offset, |
| struct auxtrace_buffer **buffer_ptr); |
| void auxtrace_queues__free(struct auxtrace_queues *queues); |
| int auxtrace_queues__process_index(struct auxtrace_queues *queues, |
| struct perf_session *session); |
| struct auxtrace_buffer *auxtrace_buffer__next(struct auxtrace_queue *queue, |
| struct auxtrace_buffer *buffer); |
| void *auxtrace_buffer__get_data(struct auxtrace_buffer *buffer, int fd); |
| void auxtrace_buffer__put_data(struct auxtrace_buffer *buffer); |
| void auxtrace_buffer__drop_data(struct auxtrace_buffer *buffer); |
| void auxtrace_buffer__free(struct auxtrace_buffer *buffer); |
| |
| int auxtrace_heap__add(struct auxtrace_heap *heap, unsigned int queue_nr, |
| u64 ordinal); |
| void auxtrace_heap__pop(struct auxtrace_heap *heap); |
| void auxtrace_heap__free(struct auxtrace_heap *heap); |
| |
| struct auxtrace_cache_entry { |
| struct hlist_node hash; |
| u32 key; |
| }; |
| |
| struct auxtrace_cache *auxtrace_cache__new(unsigned int bits, size_t entry_size, |
| unsigned int limit_percent); |
| void auxtrace_cache__free(struct auxtrace_cache *auxtrace_cache); |
| void *auxtrace_cache__alloc_entry(struct auxtrace_cache *c); |
| void auxtrace_cache__free_entry(struct auxtrace_cache *c, void *entry); |
| int auxtrace_cache__add(struct auxtrace_cache *c, u32 key, |
| struct auxtrace_cache_entry *entry); |
| void *auxtrace_cache__lookup(struct auxtrace_cache *c, u32 key); |
| |
| struct auxtrace_record *auxtrace_record__init(struct perf_evlist *evlist, |
| int *err); |
| |
| int auxtrace_parse_snapshot_options(struct auxtrace_record *itr, |
| struct record_opts *opts, |
| const char *str); |
| int auxtrace_record__options(struct auxtrace_record *itr, |
| struct perf_evlist *evlist, |
| struct record_opts *opts); |
| size_t auxtrace_record__info_priv_size(struct auxtrace_record *itr, |
| struct perf_evlist *evlist); |
| int auxtrace_record__info_fill(struct auxtrace_record *itr, |
| struct perf_session *session, |
| struct auxtrace_info_event *auxtrace_info, |
| size_t priv_size); |
| void auxtrace_record__free(struct auxtrace_record *itr); |
| int auxtrace_record__snapshot_start(struct auxtrace_record *itr); |
| int auxtrace_record__snapshot_finish(struct auxtrace_record *itr); |
| int auxtrace_record__find_snapshot(struct auxtrace_record *itr, int idx, |
| struct auxtrace_mmap *mm, |
| unsigned char *data, u64 *head, u64 *old); |
| u64 auxtrace_record__reference(struct auxtrace_record *itr); |
| |
| int auxtrace_index__auxtrace_event(struct list_head *head, union perf_event *event, |
| off_t file_offset); |
| int auxtrace_index__write(int fd, struct list_head *head); |
| int auxtrace_index__process(int fd, u64 size, struct perf_session *session, |
| bool needs_swap); |
| void auxtrace_index__free(struct list_head *head); |
| |
| void auxtrace_synth_error(struct auxtrace_error_event *auxtrace_error, int type, |
| int code, int cpu, pid_t pid, pid_t tid, u64 ip, |
| const char *msg, u64 timestamp); |
| |
| int perf_event__synthesize_auxtrace_info(struct auxtrace_record *itr, |
| struct perf_tool *tool, |
| struct perf_session *session, |
| perf_event__handler_t process); |
| int perf_event__process_auxtrace_info(struct perf_session *session, |
| union perf_event *event); |
| s64 perf_event__process_auxtrace(struct perf_session *session, |
| union perf_event *event); |
| int perf_event__process_auxtrace_error(struct perf_session *session, |
| union perf_event *event); |
| int itrace_parse_synth_opts(const struct option *opt, const char *str, |
| int unset); |
| void itrace_synth_opts__set_default(struct itrace_synth_opts *synth_opts, |
| bool no_sample); |
| |
| size_t perf_event__fprintf_auxtrace_error(union perf_event *event, FILE *fp); |
| void perf_session__auxtrace_error_inc(struct perf_session *session, |
| union perf_event *event); |
| void events_stats__auxtrace_error_warn(const struct events_stats *stats); |
| |
| void addr_filters__init(struct addr_filters *filts); |
| void addr_filters__exit(struct addr_filters *filts); |
| int addr_filters__parse_bare_filter(struct addr_filters *filts, |
| const char *filter); |
| int auxtrace_parse_filters(struct perf_evlist *evlist); |
| |
| static inline int auxtrace__process_event(struct perf_session *session, |
| union perf_event *event, |
| struct perf_sample *sample, |
| struct perf_tool *tool) |
| { |
| if (!session->auxtrace) |
| return 0; |
| |
| return session->auxtrace->process_event(session, event, sample, tool); |
| } |
| |
| static inline int auxtrace__flush_events(struct perf_session *session, |
| struct perf_tool *tool) |
| { |
| if (!session->auxtrace) |
| return 0; |
| |
| return session->auxtrace->flush_events(session, tool); |
| } |
| |
| static inline void auxtrace__free_events(struct perf_session *session) |
| { |
| if (!session->auxtrace) |
| return; |
| |
| return session->auxtrace->free_events(session); |
| } |
| |
| static inline void auxtrace__free(struct perf_session *session) |
| { |
| if (!session->auxtrace) |
| return; |
| |
| return session->auxtrace->free(session); |
| } |
| |
| #define ITRACE_HELP \ |
| " i: synthesize instructions events\n" \ |
| " b: synthesize branches events\n" \ |
| " c: synthesize branches events (calls only)\n" \ |
| " r: synthesize branches events (returns only)\n" \ |
| " x: synthesize transactions events\n" \ |
| " w: synthesize ptwrite events\n" \ |
| " p: synthesize power events\n" \ |
| " e: synthesize error events\n" \ |
| " d: create a debug log\n" \ |
| " g[len]: synthesize a call chain (use with i or x)\n" \ |
| " l[len]: synthesize last branch entries (use with i or x)\n" \ |
| " sNUMBER: skip initial number of events\n" \ |
| " PERIOD[ns|us|ms|i|t]: specify period to sample stream\n" \ |
| " concatenate multiple options. Default is ibxwpe or cewp\n" |
| |
| |
| #else |
| |
| static inline struct auxtrace_record * |
| auxtrace_record__init(struct perf_evlist *evlist __maybe_unused, |
| int *err) |
| { |
| *err = 0; |
| return NULL; |
| } |
| |
| static inline |
| void auxtrace_record__free(struct auxtrace_record *itr __maybe_unused) |
| { |
| } |
| |
| static inline int |
| perf_event__synthesize_auxtrace_info(struct auxtrace_record *itr __maybe_unused, |
| struct perf_tool *tool __maybe_unused, |
| struct perf_session *session __maybe_unused, |
| perf_event__handler_t process __maybe_unused) |
| { |
| return -EINVAL; |
| } |
| |
| static inline |
| int auxtrace_record__options(struct auxtrace_record *itr __maybe_unused, |
| struct perf_evlist *evlist __maybe_unused, |
| struct record_opts *opts __maybe_unused) |
| { |
| return 0; |
| } |
| |
| #define perf_event__process_auxtrace_info 0 |
| #define perf_event__process_auxtrace 0 |
| #define perf_event__process_auxtrace_error 0 |
| |
| static inline |
| void perf_session__auxtrace_error_inc(struct perf_session *session |
| __maybe_unused, |
| union perf_event *event |
| __maybe_unused) |
| { |
| } |
| |
| static inline |
| void events_stats__auxtrace_error_warn(const struct events_stats *stats |
| __maybe_unused) |
| { |
| } |
| |
| static inline |
| int itrace_parse_synth_opts(const struct option *opt __maybe_unused, |
| const char *str __maybe_unused, |
| int unset __maybe_unused) |
| { |
| pr_err("AUX area tracing not supported\n"); |
| return -EINVAL; |
| } |
| |
| static inline |
| int auxtrace_parse_snapshot_options(struct auxtrace_record *itr __maybe_unused, |
| struct record_opts *opts __maybe_unused, |
| const char *str) |
| { |
| if (!str) |
| return 0; |
| pr_err("AUX area tracing not supported\n"); |
| return -EINVAL; |
| } |
| |
| static inline |
| int auxtrace__process_event(struct perf_session *session __maybe_unused, |
| union perf_event *event __maybe_unused, |
| struct perf_sample *sample __maybe_unused, |
| struct perf_tool *tool __maybe_unused) |
| { |
| return 0; |
| } |
| |
| static inline |
| int auxtrace__flush_events(struct perf_session *session __maybe_unused, |
| struct perf_tool *tool __maybe_unused) |
| { |
| return 0; |
| } |
| |
| static inline |
| void auxtrace__free_events(struct perf_session *session __maybe_unused) |
| { |
| } |
| |
| static inline |
| void auxtrace_cache__free(struct auxtrace_cache *auxtrace_cache __maybe_unused) |
| { |
| } |
| |
| static inline |
| void auxtrace__free(struct perf_session *session __maybe_unused) |
| { |
| } |
| |
| static inline |
| int auxtrace_index__write(int fd __maybe_unused, |
| struct list_head *head __maybe_unused) |
| { |
| return -EINVAL; |
| } |
| |
| static inline |
| int auxtrace_index__process(int fd __maybe_unused, |
| u64 size __maybe_unused, |
| struct perf_session *session __maybe_unused, |
| bool needs_swap __maybe_unused) |
| { |
| return -EINVAL; |
| } |
| |
| static inline |
| void auxtrace_index__free(struct list_head *head __maybe_unused) |
| { |
| } |
| |
| static inline |
| int auxtrace_parse_filters(struct perf_evlist *evlist __maybe_unused) |
| { |
| return 0; |
| } |
| |
| int auxtrace_mmap__mmap(struct auxtrace_mmap *mm, |
| struct auxtrace_mmap_params *mp, |
| void *userpg, int fd); |
| void auxtrace_mmap__munmap(struct auxtrace_mmap *mm); |
| void auxtrace_mmap_params__init(struct auxtrace_mmap_params *mp, |
| off_t auxtrace_offset, |
| unsigned int auxtrace_pages, |
| bool auxtrace_overwrite); |
| void auxtrace_mmap_params__set_idx(struct auxtrace_mmap_params *mp, |
| struct perf_evlist *evlist, int idx, |
| bool per_cpu); |
| |
| #define ITRACE_HELP "" |
| |
| #endif |
| |
| #endif |