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| -rw-r--r-- | tools/perf/util/auxtrace.h | 901 |
1 files changed, 901 insertions, 0 deletions
diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h new file mode 100644 index 000000000..6a0f9b98f --- /dev/null +++ b/tools/perf/util/auxtrace.h @@ -0,0 +1,901 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * auxtrace.h: AUX area trace support + * Copyright (c) 2013-2015, Intel Corporation. + */ + +#ifndef __PERF_AUXTRACE_H +#define __PERF_AUXTRACE_H + +#include <sys/types.h> +#include <errno.h> +#include <stdbool.h> +#include <stddef.h> +#include <stdio.h> // FILE +#include <linux/list.h> +#include <linux/perf_event.h> +#include <linux/types.h> +#include <internal/cpumap.h> +#include <asm/bitsperlong.h> +#include <asm/barrier.h> + +union perf_event; +struct perf_session; +struct evlist; +struct evsel; +struct perf_tool; +struct mmap; +struct perf_sample; +struct option; +struct record_opts; +struct perf_record_auxtrace_error; +struct perf_record_auxtrace_info; +struct events_stats; +struct perf_pmu; + +enum auxtrace_error_type { + PERF_AUXTRACE_ERROR_ITRACE = 1, + PERF_AUXTRACE_ERROR_MAX +}; + +/* 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, + PERF_AUXTRACE_HISI_PTT, +}; + +enum itrace_period_type { + PERF_ITRACE_PERIOD_INSTRUCTIONS, + PERF_ITRACE_PERIOD_TICKS, + PERF_ITRACE_PERIOD_NANOSECS, +}; + +#define AUXTRACE_ERR_FLG_OVERFLOW (1 << ('o' - 'a')) +#define AUXTRACE_ERR_FLG_DATA_LOST (1 << ('l' - 'a')) + +#define AUXTRACE_LOG_FLG_ALL_PERF_EVTS (1 << ('a' - 'a')) +#define AUXTRACE_LOG_FLG_ON_ERROR (1 << ('e' - 'a')) +#define AUXTRACE_LOG_FLG_USE_STDOUT (1 << ('o' - 'a')) + +/** + * 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 + * (branch misses only for Arm SPE) + * @transactions: whether to synthesize events for transactions + * @ptwrites: whether to synthesize events for ptwrites + * @pwr_events: whether to synthesize power events + * @other_events: whether to synthesize other events recorded due to the use of + * aux_output + * @intr_events: whether to synthesize interrupt 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 + * @add_callchain: add callchain to existing event records + * @thread_stack: feed branches to the thread_stack + * @last_branch: add branch context to 'instruction' events + * @add_last_branch: add branch context to existing event records + * @approx_ipc: approximate IPC + * @flc: whether to synthesize first level cache events + * @llc: whether to synthesize last level cache events + * @tlb: whether to synthesize TLB events + * @remote_access: whether to synthesize remote access events + * @mem: whether to synthesize memory events + * @timeless_decoding: prefer "timeless" decoding i.e. ignore timestamps + * @vm_time_correlation: perform VM Time Correlation + * @vm_tm_corr_dry_run: VM Time Correlation dry-run + * @vm_tm_corr_args: VM Time Correlation implementation-specific arguments + * @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 + * @ptime_range: time intervals to trace or NULL + * @range_num: number of time intervals to trace + * @error_plus_flags: flags to affect what errors are reported + * @error_minus_flags: flags to affect what errors are reported + * @log_plus_flags: flags to affect what is logged + * @log_minus_flags: flags to affect what is logged + * @quick: quicker (less detailed) decoding + * @log_on_error_size: size of log to keep for outputting log only on errors + */ +struct itrace_synth_opts { + bool set; + bool default_no_sample; + bool inject; + bool instructions; + bool branches; + bool transactions; + bool ptwrites; + bool pwr_events; + bool other_events; + bool intr_events; + bool errors; + bool dont_decode; + bool log; + bool calls; + bool returns; + bool callchain; + bool add_callchain; + bool thread_stack; + bool last_branch; + bool add_last_branch; + bool approx_ipc; + bool flc; + bool llc; + bool tlb; + bool remote_access; + bool mem; + bool timeless_decoding; + bool vm_time_correlation; + bool vm_tm_corr_dry_run; + char *vm_tm_corr_args; + 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 perf_time_interval *ptime_range; + int range_num; + unsigned int error_plus_flags; + unsigned int error_minus_flags; + unsigned int log_plus_flags; + unsigned int log_minus_flags; + unsigned int quick; + unsigned int log_on_error_size; +}; + +/** + * 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 + * @queue_data: queue an AUX sample or PERF_RECORD_AUXTRACE event for later + * processing + * @dump_auxtrace_sample: dump AUX area sample data + * @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 (*queue_data)(struct perf_session *session, + struct perf_sample *sample, union perf_event *event, + u64 data_offset); + void (*dump_auxtrace_sample)(struct perf_session *session, + struct perf_sample *sample); + int (*flush_events)(struct perf_session *session, + struct perf_tool *tool); + void (*free_events)(struct perf_session *session); + void (*free)(struct perf_session *session); + bool (*evsel_is_auxtrace)(struct perf_session *session, + struct evsel *evsel); +}; + +/** + * 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; + struct perf_cpu 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 + * @mmap_needed: set to %false for non-auxtrace events. This is needed because + * auxtrace mmapping is done in the same code path as non-auxtrace + * mmapping but not every evsel that needs non-auxtrace mmapping + * also needs auxtrace mmapping. + * @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; + bool mmap_needed; + struct perf_cpu 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 + * @default_aux_sample_size: default sample size for --aux sample option + * @pmu: associated pmu + * @evlist: selected events list + */ +struct auxtrace_record { + int (*recording_options)(struct auxtrace_record *itr, + struct evlist *evlist, + struct record_opts *opts); + size_t (*info_priv_size)(struct auxtrace_record *itr, + struct evlist *evlist); + int (*info_fill)(struct auxtrace_record *itr, + struct perf_session *session, + struct perf_record_auxtrace_info *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; + unsigned int default_aux_sample_size; + struct perf_pmu *pmu; + struct evlist *evlist; +}; + +/** + * 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; +}; + +struct auxtrace_cache; + +#ifdef HAVE_AUXTRACE_SUPPORT + +u64 compat_auxtrace_mmap__read_head(struct auxtrace_mmap *mm); +int compat_auxtrace_mmap__write_tail(struct auxtrace_mmap *mm, u64 tail); + +static inline u64 auxtrace_mmap__read_head(struct auxtrace_mmap *mm, + int kernel_is_64_bit __maybe_unused) +{ + struct perf_event_mmap_page *pc = mm->userpg; + u64 head; + +#if BITS_PER_LONG == 32 + if (kernel_is_64_bit) + return compat_auxtrace_mmap__read_head(mm); +#endif + head = READ_ONCE(pc->aux_head); + + /* Ensure all reads are done after we read the head */ + smp_rmb(); + return head; +} + +static inline int auxtrace_mmap__write_tail(struct auxtrace_mmap *mm, u64 tail, + int kernel_is_64_bit __maybe_unused) +{ + struct perf_event_mmap_page *pc = mm->userpg; + +#if BITS_PER_LONG == 32 + if (kernel_is_64_bit) + return compat_auxtrace_mmap__write_tail(mm, tail); +#endif + /* Ensure all reads are done before we write the tail out */ + smp_mb(); + WRITE_ONCE(pc->aux_tail, tail); + 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 evlist *evlist, + struct evsel *evsel, int idx); + +typedef int (*process_auxtrace_t)(struct perf_tool *tool, + struct mmap *map, + union perf_event *event, void *data1, + size_t len1, void *data2, size_t len2); + +int auxtrace_mmap__read(struct mmap *map, struct auxtrace_record *itr, + struct perf_tool *tool, process_auxtrace_t fn); + +int auxtrace_mmap__read_snapshot(struct 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); +struct auxtrace_queue * +auxtrace_queues__sample_queue(struct auxtrace_queues *queues, + struct perf_sample *sample, + struct perf_session *session); +int auxtrace_queues__add_sample(struct auxtrace_queues *queues, + struct perf_session *session, + struct perf_sample *sample, u64 data_offset, + u64 reference); +void auxtrace_queues__free(struct auxtrace_queues *queues); +int auxtrace_queues__process_index(struct auxtrace_queues *queues, + struct perf_session *session); +int auxtrace_queue_data(struct perf_session *session, bool samples, + bool events); +struct auxtrace_buffer *auxtrace_buffer__next(struct auxtrace_queue *queue, + struct auxtrace_buffer *buffer); +void *auxtrace_buffer__get_data_rw(struct auxtrace_buffer *buffer, int fd, bool rw); +static inline void *auxtrace_buffer__get_data(struct auxtrace_buffer *buffer, int fd) +{ + return auxtrace_buffer__get_data_rw(buffer, fd, false); +} +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__remove(struct auxtrace_cache *c, u32 key); +void *auxtrace_cache__lookup(struct auxtrace_cache *c, u32 key); + +struct auxtrace_record *auxtrace_record__init(struct evlist *evlist, + int *err); + +int auxtrace_parse_snapshot_options(struct auxtrace_record *itr, + struct record_opts *opts, + const char *str); +int auxtrace_parse_sample_options(struct auxtrace_record *itr, + struct evlist *evlist, + struct record_opts *opts, const char *str); +void auxtrace_regroup_aux_output(struct evlist *evlist); +int auxtrace_record__options(struct auxtrace_record *itr, + struct evlist *evlist, + struct record_opts *opts); +size_t auxtrace_record__info_priv_size(struct auxtrace_record *itr, + struct evlist *evlist); +int auxtrace_record__info_fill(struct auxtrace_record *itr, + struct perf_session *session, + struct perf_record_auxtrace_info *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, bool on_exit); +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_record__read_finish(struct auxtrace_record *itr, int idx); + +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_guest_error(struct perf_record_auxtrace_error *auxtrace_error, int type, + int code, int cpu, pid_t pid, pid_t tid, u64 ip, + const char *msg, u64 timestamp, + pid_t machine_pid, int vcpu); +void auxtrace_synth_error(struct perf_record_auxtrace_error *auxtrace_error, int type, + int code, int cpu, pid_t pid, pid_t tid, u64 ip, + const char *msg, u64 timestamp); + +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_do_parse_synth_opts(struct itrace_synth_opts *synth_opts, + const char *str, int unset); +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 evlist *evlist); + +int auxtrace__process_event(struct perf_session *session, union perf_event *event, + struct perf_sample *sample, struct perf_tool *tool); +void auxtrace__dump_auxtrace_sample(struct perf_session *session, + struct perf_sample *sample); +int auxtrace__flush_events(struct perf_session *session, struct perf_tool *tool); +void auxtrace__free_events(struct perf_session *session); +void auxtrace__free(struct perf_session *session); +bool auxtrace__evsel_is_auxtrace(struct perf_session *session, + struct evsel *evsel); + +#define ITRACE_HELP \ +" i[period]: synthesize instructions events\n" \ +" b: synthesize branches events (branch misses for Arm SPE)\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" \ +" o: synthesize other events recorded due to the use\n" \ +" of aux-output (refer to perf record)\n" \ +" I: synthesize interrupt or similar (asynchronous) events\n" \ +" (e.g. Intel PT Event Trace)\n" \ +" e[flags]: synthesize error events\n" \ +" each flag must be preceded by + or -\n" \ +" error flags are: o (overflow)\n" \ +" l (data lost)\n" \ +" d[flags]: create a debug log\n" \ +" each flag must be preceded by + or -\n" \ +" log flags are: a (all perf events)\n" \ +" o (output to stdout)\n" \ +" f: synthesize first level cache events\n" \ +" m: synthesize last level cache events\n" \ +" t: synthesize TLB events\n" \ +" a: synthesize remote access events\n" \ +" g[len]: synthesize a call chain (use with i or x)\n" \ +" G[len]: synthesize a call chain on existing event records\n" \ +" l[len]: synthesize last branch entries (use with i or x)\n" \ +" L[len]: synthesize last branch entries on existing event records\n" \ +" sNUMBER: skip initial number of events\n" \ +" q: quicker (less detailed) decoding\n" \ +" A: approximate IPC\n" \ +" Z: prefer to ignore timestamps (so-called \"timeless\" decoding)\n" \ +" PERIOD[ns|us|ms|i|t]: specify period to sample stream\n" \ +" concatenate multiple options. Default is ibxwpe or cewp\n" + +static inline +void itrace_synth_opts__set_time_range(struct itrace_synth_opts *opts, + struct perf_time_interval *ptime_range, + int range_num) +{ + opts->ptime_range = ptime_range; + opts->range_num = range_num; +} + +static inline +void itrace_synth_opts__clear_time_range(struct itrace_synth_opts *opts) +{ + opts->ptime_range = NULL; + opts->range_num = 0; +} + +#else +#include "debug.h" + +static inline struct auxtrace_record * +auxtrace_record__init(struct 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 auxtrace_record__options(struct auxtrace_record *itr __maybe_unused, + struct evlist *evlist __maybe_unused, + struct record_opts *opts __maybe_unused) +{ + return 0; +} + +static inline +int perf_event__process_auxtrace_info(struct perf_session *session __maybe_unused, + union perf_event *event __maybe_unused) +{ + return 0; +} + +static inline +s64 perf_event__process_auxtrace(struct perf_session *session __maybe_unused, + union perf_event *event __maybe_unused) +{ + return 0; +} + +static inline +int perf_event__process_auxtrace_error(struct perf_session *session __maybe_unused, + union perf_event *event __maybe_unused) +{ + return 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_do_parse_synth_opts(struct itrace_synth_opts *synth_opts __maybe_unused, + const char *str __maybe_unused, int unset __maybe_unused) +{ + pr_err("AUX area tracing not supported\n"); + return -EINVAL; +} + +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_parse_sample_options(struct auxtrace_record *itr __maybe_unused, + struct evlist *evlist __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 +void auxtrace_regroup_aux_output(struct evlist *evlist __maybe_unused) +{ +} + +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 +void auxtrace__dump_auxtrace_sample(struct perf_session *session __maybe_unused, + struct perf_sample *sample __maybe_unused) +{ +} + +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 +bool auxtrace__evsel_is_auxtrace(struct perf_session *session __maybe_unused, + struct evsel *evsel __maybe_unused) +{ + return false; +} + +static inline +int auxtrace_parse_filters(struct 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 evlist *evlist, + struct evsel *evsel, int idx); + +#define ITRACE_HELP "" + +static inline +void itrace_synth_opts__set_time_range(struct itrace_synth_opts *opts + __maybe_unused, + struct perf_time_interval *ptime_range + __maybe_unused, + int range_num __maybe_unused) +{ +} + +static inline +void itrace_synth_opts__clear_time_range(struct itrace_synth_opts *opts + __maybe_unused) +{ +} + +#endif + +#endif |