1 /* SPDX-License-Identifier: GPL-2.0 */
3 #define __PERF_EVSEL_H 1
5 #include <linux/list.h>
8 #include <linux/perf_event.h>
9 #include <linux/types.h>
10 #include <internal/evsel.h>
11 #include <perf/evsel.h>
12 #include "symbol_conf.h"
17 struct perf_stat_evsel;
19 struct bpf_counter_ops;
22 struct bperf_leader_bpf;
23 struct bperf_follower_bpf;
26 typedef int (evsel__sb_cb_t)(union perf_event *event, void *data);
28 enum perf_tool_event {
30 PERF_TOOL_DURATION_TIME = 1,
31 PERF_TOOL_USER_TIME = 2,
32 PERF_TOOL_SYSTEM_TIME = 3,
37 const char *perf_tool_event__to_str(enum perf_tool_event ev);
38 enum perf_tool_event perf_tool_event__from_str(const char *str);
40 #define perf_tool_event__for_each_event(ev) \
41 for ((ev) = PERF_TOOL_DURATION_TIME; (ev) < PERF_TOOL_MAX; ev++)
43 /** struct evsel - event selector
45 * @evlist - evlist this evsel is in, if it is in one.
46 * @core - libperf evsel object
47 * @name - Can be set to retain the original event name passed by the user,
48 * so that when showing results in tools such as 'perf stat', we
49 * show the name used, not some alias.
50 * @id_pos: the position of the event id (PERF_SAMPLE_ID or
51 * PERF_SAMPLE_IDENTIFIER) in a sample event i.e. in the array of
52 * struct perf_record_sample
53 * @is_pos: the position (counting backwards) of the event id (PERF_SAMPLE_ID or
54 * PERF_SAMPLE_IDENTIFIER) in a non-sample event i.e. if sample_id_all
55 * is used there is an id sample appended to non-sample events
56 * @priv: And what is in its containing unnamed union are tool specific
59 struct perf_evsel core;
60 struct evlist *evlist;
64 unsigned int sample_size;
67 * These fields can be set in the parse-events code or similar.
68 * Please check evsel__clone() to copy them properly so that
69 * they can be released properly.
75 #ifdef HAVE_LIBTRACEEVENT
76 struct tep_event *tp_format;
79 unsigned long max_events;
83 const char *metric_id;
84 enum perf_tool_event tool_event;
85 /* parse modifier helper */
93 bool auto_merge_stats;
99 struct bpf_object *bpf_obj;
100 struct list_head config_terms;
104 * metric fields are similar, but needs more care as they can have
105 * references to other metric (evsel).
107 struct evsel **metric_events;
108 struct evsel *metric_leader;
111 struct perf_counts *counts;
112 struct perf_counts *prev_raw_counts;
113 unsigned long nr_events_printed;
114 struct perf_stat_evsel *stats;
117 bool uniquified_name;
124 bool ignore_missing_thread;
126 bool cmdline_group_boundary;
130 bool needs_auxtrace_mmap;
131 struct hashmap *per_pkg_mask;
138 * For reporting purposes, an evsel sample can have a callchain
139 * synthesized from AUX area data. Keep track of synthesized sample
140 * types here. Note, the recorded sample_type cannot be changed because
141 * it is needed to continue to parse events.
142 * See also evsel__has_callchain().
144 __u64 synth_sample_type;
147 * bpf_counter_ops serves two use cases:
148 * 1. perf-stat -b counting events used byBPF programs
149 * 2. perf-stat --use-bpf use BPF programs to aggregate counts
151 struct bpf_counter_ops *bpf_counter_ops;
154 struct list_head bpf_counter_list; /* for perf-stat -b */
155 struct list_head bpf_filters; /* for perf-record --filter */
158 /* for perf-stat --use-bpf */
159 int bperf_leader_prog_fd;
160 int bperf_leader_link_fd;
162 struct bperf_leader_bpf *leader_skel;
163 struct bperf_follower_bpf *follower_skel;
166 unsigned long open_flags;
167 int precise_ip_original;
169 /* for missing_features */
170 struct perf_pmu *pmu;
173 struct perf_missing_features {
194 extern struct perf_missing_features perf_missing_features;
200 static inline struct perf_cpu_map *evsel__cpus(struct evsel *evsel)
202 return perf_evsel__cpus(&evsel->core);
205 static inline int evsel__nr_cpus(struct evsel *evsel)
207 return perf_cpu_map__nr(evsel__cpus(evsel));
210 void evsel__compute_deltas(struct evsel *evsel, int cpu, int thread,
211 struct perf_counts_values *count);
213 int evsel__object_config(size_t object_size,
214 int (*init)(struct evsel *evsel),
215 void (*fini)(struct evsel *evsel));
217 struct perf_pmu *evsel__find_pmu(const struct evsel *evsel);
218 bool evsel__is_aux_event(const struct evsel *evsel);
220 struct evsel *evsel__new_idx(struct perf_event_attr *attr, int idx);
222 static inline struct evsel *evsel__new(struct perf_event_attr *attr)
224 return evsel__new_idx(attr, 0);
227 struct evsel *evsel__clone(struct evsel *orig);
229 int copy_config_terms(struct list_head *dst, struct list_head *src);
230 void free_config_terms(struct list_head *config_terms);
233 #ifdef HAVE_LIBTRACEEVENT
234 struct evsel *evsel__newtp_idx(const char *sys, const char *name, int idx);
237 * Returns pointer with encoded error via <linux/err.h> interface.
239 static inline struct evsel *evsel__newtp(const char *sys, const char *name)
241 return evsel__newtp_idx(sys, name, 0);
245 struct evsel *evsel__new_cycles(bool precise, __u32 type, __u64 config);
247 #ifdef HAVE_LIBTRACEEVENT
248 struct tep_event *event_format__new(const char *sys, const char *name);
251 void evsel__init(struct evsel *evsel, struct perf_event_attr *attr, int idx);
252 void evsel__exit(struct evsel *evsel);
253 void evsel__delete(struct evsel *evsel);
255 struct callchain_param;
257 void evsel__config(struct evsel *evsel, struct record_opts *opts,
258 struct callchain_param *callchain);
259 void evsel__config_callchain(struct evsel *evsel, struct record_opts *opts,
260 struct callchain_param *callchain);
262 int __evsel__sample_size(u64 sample_type);
263 void evsel__calc_id_pos(struct evsel *evsel);
265 bool evsel__is_cache_op_valid(u8 type, u8 op);
267 static inline bool evsel__is_bpf(struct evsel *evsel)
269 return evsel->bpf_counter_ops != NULL;
272 #define EVSEL__MAX_ALIASES 8
274 extern const char *const evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX][EVSEL__MAX_ALIASES];
275 extern const char *const evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX][EVSEL__MAX_ALIASES];
276 extern const char *const evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX][EVSEL__MAX_ALIASES];
277 extern const char *const evsel__hw_names[PERF_COUNT_HW_MAX];
278 extern const char *const evsel__sw_names[PERF_COUNT_SW_MAX];
279 extern char *evsel__bpf_counter_events;
280 bool evsel__match_bpf_counter_events(const char *name);
281 int arch_evsel__hw_name(struct evsel *evsel, char *bf, size_t size);
283 int __evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result, char *bf, size_t size);
284 const char *evsel__name(struct evsel *evsel);
285 const char *evsel__group_pmu_name(const struct evsel *evsel);
286 const char *evsel__metric_id(const struct evsel *evsel);
288 static inline bool evsel__is_tool(const struct evsel *evsel)
290 return evsel->tool_event != PERF_TOOL_NONE;
293 const char *evsel__group_name(struct evsel *evsel);
294 int evsel__group_desc(struct evsel *evsel, char *buf, size_t size);
296 void __evsel__set_sample_bit(struct evsel *evsel, enum perf_event_sample_format bit);
297 void __evsel__reset_sample_bit(struct evsel *evsel, enum perf_event_sample_format bit);
299 #define evsel__set_sample_bit(evsel, bit) \
300 __evsel__set_sample_bit(evsel, PERF_SAMPLE_##bit)
302 #define evsel__reset_sample_bit(evsel, bit) \
303 __evsel__reset_sample_bit(evsel, PERF_SAMPLE_##bit)
305 void evsel__set_sample_id(struct evsel *evsel, bool use_sample_identifier);
307 void arch_evsel__set_sample_weight(struct evsel *evsel);
308 void arch_evsel__fixup_new_cycles(struct perf_event_attr *attr);
309 void arch__post_evsel_config(struct evsel *evsel, struct perf_event_attr *attr);
311 int evsel__set_filter(struct evsel *evsel, const char *filter);
312 int evsel__append_tp_filter(struct evsel *evsel, const char *filter);
313 int evsel__append_addr_filter(struct evsel *evsel, const char *filter);
314 int evsel__enable_cpu(struct evsel *evsel, int cpu_map_idx);
315 int evsel__enable(struct evsel *evsel);
316 int evsel__disable(struct evsel *evsel);
317 int evsel__disable_cpu(struct evsel *evsel, int cpu_map_idx);
319 int evsel__open_per_cpu(struct evsel *evsel, struct perf_cpu_map *cpus, int cpu_map_idx);
320 int evsel__open_per_thread(struct evsel *evsel, struct perf_thread_map *threads);
321 int evsel__open(struct evsel *evsel, struct perf_cpu_map *cpus,
322 struct perf_thread_map *threads);
323 void evsel__close(struct evsel *evsel);
324 int evsel__prepare_open(struct evsel *evsel, struct perf_cpu_map *cpus,
325 struct perf_thread_map *threads);
326 bool evsel__detect_missing_features(struct evsel *evsel);
328 enum rlimit_action { NO_CHANGE, SET_TO_MAX, INCREASED_MAX };
329 bool evsel__increase_rlimit(enum rlimit_action *set_rlimit);
331 bool evsel__precise_ip_fallback(struct evsel *evsel);
335 #ifdef HAVE_LIBTRACEEVENT
336 void *evsel__rawptr(struct evsel *evsel, struct perf_sample *sample, const char *name);
337 u64 evsel__intval(struct evsel *evsel, struct perf_sample *sample, const char *name);
339 static inline char *evsel__strval(struct evsel *evsel, struct perf_sample *sample, const char *name)
341 return evsel__rawptr(evsel, sample, name);
345 struct tep_format_field;
347 u64 format_field__intval(struct tep_format_field *field, struct perf_sample *sample, bool needs_swap);
349 struct tep_format_field *evsel__field(struct evsel *evsel, const char *name);
351 #define evsel__match(evsel, t, c) \
352 (evsel->core.attr.type == PERF_TYPE_##t && \
353 evsel->core.attr.config == PERF_COUNT_##c)
355 static inline bool evsel__match2(struct evsel *e1, struct evsel *e2)
357 return (e1->core.attr.type == e2->core.attr.type) &&
358 (e1->core.attr.config == e2->core.attr.config);
361 int evsel__read_counter(struct evsel *evsel, int cpu_map_idx, int thread);
363 int __evsel__read_on_cpu(struct evsel *evsel, int cpu_map_idx, int thread, bool scale);
366 * evsel__read_on_cpu - Read out the results on a CPU and thread
368 * @evsel - event selector to read value
369 * @cpu_map_idx - CPU of interest
370 * @thread - thread of interest
372 static inline int evsel__read_on_cpu(struct evsel *evsel, int cpu_map_idx, int thread)
374 return __evsel__read_on_cpu(evsel, cpu_map_idx, thread, false);
378 * evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
380 * @evsel - event selector to read value
381 * @cpu_map_idx - CPU of interest
382 * @thread - thread of interest
384 static inline int evsel__read_on_cpu_scaled(struct evsel *evsel, int cpu_map_idx, int thread)
386 return __evsel__read_on_cpu(evsel, cpu_map_idx, thread, true);
389 int evsel__parse_sample(struct evsel *evsel, union perf_event *event,
390 struct perf_sample *sample);
392 int evsel__parse_sample_timestamp(struct evsel *evsel, union perf_event *event,
395 u16 evsel__id_hdr_size(struct evsel *evsel);
397 static inline struct evsel *evsel__next(struct evsel *evsel)
399 return list_entry(evsel->core.node.next, struct evsel, core.node);
402 static inline struct evsel *evsel__prev(struct evsel *evsel)
404 return list_entry(evsel->core.node.prev, struct evsel, core.node);
408 * evsel__is_group_leader - Return whether given evsel is a leader event
410 * @evsel - evsel selector to be tested
412 * Return %true if @evsel is a group leader or a stand-alone event
414 static inline bool evsel__is_group_leader(const struct evsel *evsel)
416 return evsel->core.leader == &evsel->core;
420 * evsel__is_group_event - Return whether given evsel is a group event
422 * @evsel - evsel selector to be tested
424 * Return %true iff event group view is enabled and @evsel is a actual group
425 * leader which has other members in the group
427 static inline bool evsel__is_group_event(struct evsel *evsel)
429 if (!symbol_conf.event_group)
432 return evsel__is_group_leader(evsel) && evsel->core.nr_members > 1;
435 bool evsel__is_function_event(struct evsel *evsel);
437 static inline bool evsel__is_bpf_output(struct evsel *evsel)
439 return evsel__match(evsel, SOFTWARE, SW_BPF_OUTPUT);
442 static inline bool evsel__is_clock(const struct evsel *evsel)
444 return evsel__match(evsel, SOFTWARE, SW_CPU_CLOCK) ||
445 evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK);
448 bool evsel__fallback(struct evsel *evsel, int err, char *msg, size_t msgsize);
449 int evsel__open_strerror(struct evsel *evsel, struct target *target,
450 int err, char *msg, size_t size);
452 static inline int evsel__group_idx(struct evsel *evsel)
454 return evsel->core.idx - evsel->core.leader->idx;
457 /* Iterates group WITHOUT the leader. */
458 #define for_each_group_member(_evsel, _leader) \
459 for ((_evsel) = list_entry((_leader)->core.node.next, struct evsel, core.node); \
460 (_evsel) && (_evsel)->core.leader == (&_leader->core); \
461 (_evsel) = list_entry((_evsel)->core.node.next, struct evsel, core.node))
463 /* Iterates group WITH the leader. */
464 #define for_each_group_evsel(_evsel, _leader) \
465 for ((_evsel) = _leader; \
466 (_evsel) && (_evsel)->core.leader == (&_leader->core); \
467 (_evsel) = list_entry((_evsel)->core.node.next, struct evsel, core.node))
469 static inline bool evsel__has_branch_callstack(const struct evsel *evsel)
471 return evsel->core.attr.branch_sample_type & PERF_SAMPLE_BRANCH_CALL_STACK;
474 static inline bool evsel__has_branch_hw_idx(const struct evsel *evsel)
476 return evsel->core.attr.branch_sample_type & PERF_SAMPLE_BRANCH_HW_INDEX;
479 static inline bool evsel__has_callchain(const struct evsel *evsel)
482 * For reporting purposes, an evsel sample can have a recorded callchain
483 * or a callchain synthesized from AUX area data.
485 return evsel->core.attr.sample_type & PERF_SAMPLE_CALLCHAIN ||
486 evsel->synth_sample_type & PERF_SAMPLE_CALLCHAIN;
489 static inline bool evsel__has_br_stack(const struct evsel *evsel)
492 * For reporting purposes, an evsel sample can have a recorded branch
493 * stack or a branch stack synthesized from AUX area data.
495 return evsel->core.attr.sample_type & PERF_SAMPLE_BRANCH_STACK ||
496 evsel->synth_sample_type & PERF_SAMPLE_BRANCH_STACK;
499 static inline bool evsel__is_dummy_event(struct evsel *evsel)
501 return (evsel->core.attr.type == PERF_TYPE_SOFTWARE) &&
502 (evsel->core.attr.config == PERF_COUNT_SW_DUMMY);
505 struct perf_env *evsel__env(struct evsel *evsel);
507 int evsel__store_ids(struct evsel *evsel, struct evlist *evlist);
509 void evsel__zero_per_pkg(struct evsel *evsel);
510 bool evsel__is_hybrid(const struct evsel *evsel);
511 struct evsel *evsel__leader(const struct evsel *evsel);
512 bool evsel__has_leader(struct evsel *evsel, struct evsel *leader);
513 bool evsel__is_leader(struct evsel *evsel);
514 void evsel__set_leader(struct evsel *evsel, struct evsel *leader);
515 int evsel__source_count(const struct evsel *evsel);
516 void evsel__remove_from_group(struct evsel *evsel, struct evsel *leader);
518 bool arch_evsel__must_be_in_group(const struct evsel *evsel);
521 * Macro to swap the bit-field postition and size.
523 * - dont need to swap the entire u64 &&
524 * - when u64 has variable bit-field sizes &&
525 * - when presented in a host endian which is different
526 * than the source endian of the perf.data file
528 #define bitfield_swap(src, pos, size) \
529 ((((src) >> (pos)) & ((1ull << (size)) - 1)) << (63 - ((pos) + (size) - 1)))
531 u64 evsel__bitfield_swap_branch_flags(u64 value);
532 #endif /* __PERF_EVSEL_H */