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"
18 struct perf_stat_evsel;
20 struct bpf_counter_ops;
23 struct bperf_leader_bpf;
24 struct bperf_follower_bpf;
27 typedef int (evsel__sb_cb_t)(union perf_event *event, void *data);
29 enum perf_tool_event {
31 PERF_TOOL_DURATION_TIME = 1,
32 PERF_TOOL_USER_TIME = 2,
33 PERF_TOOL_SYSTEM_TIME = 3,
38 const char *perf_tool_event__to_str(enum perf_tool_event ev);
39 enum perf_tool_event perf_tool_event__from_str(const char *str);
41 #define perf_tool_event__for_each_event(ev) \
42 for ((ev) = PERF_TOOL_DURATION_TIME; (ev) < PERF_TOOL_MAX; ev++)
44 /** struct evsel - event selector
46 * @evlist - evlist this evsel is in, if it is in one.
47 * @core - libperf evsel object
48 * @name - Can be set to retain the original event name passed by the user,
49 * so that when showing results in tools such as 'perf stat', we
50 * show the name used, not some alias.
51 * @id_pos: the position of the event id (PERF_SAMPLE_ID or
52 * PERF_SAMPLE_IDENTIFIER) in a sample event i.e. in the array of
53 * struct perf_record_sample
54 * @is_pos: the position (counting backwards) of the event id (PERF_SAMPLE_ID or
55 * PERF_SAMPLE_IDENTIFIER) in a non-sample event i.e. if sample_id_all
56 * is used there is an id sample appended to non-sample events
57 * @priv: And what is in its containing unnamed union are tool specific
60 struct perf_evsel core;
61 struct evlist *evlist;
65 unsigned int sample_size;
68 * These fields can be set in the parse-events code or similar.
69 * Please check evsel__clone() to copy them properly so that
70 * they can be released properly.
76 const char *group_pmu_name;
77 #ifdef HAVE_LIBTRACEEVENT
78 struct tep_event *tp_format;
81 unsigned long max_events;
85 const char *metric_id;
86 enum perf_tool_event tool_event;
87 /* parse modifier helper */
95 bool auto_merge_stats;
102 struct bpf_object *bpf_obj;
103 struct list_head config_terms;
107 * metric fields are similar, but needs more care as they can have
108 * references to other metric (evsel).
110 struct evsel **metric_events;
111 struct evsel *metric_leader;
114 struct perf_counts *counts;
115 struct perf_counts *prev_raw_counts;
116 unsigned long nr_events_printed;
117 struct perf_stat_evsel *stats;
120 bool uniquified_name;
127 bool ignore_missing_thread;
129 bool cmdline_group_boundary;
133 bool needs_auxtrace_mmap;
134 bool default_metricgroup; /* A member of the Default metricgroup */
135 struct hashmap *per_pkg_mask;
142 * For reporting purposes, an evsel sample can have a callchain
143 * synthesized from AUX area data. Keep track of synthesized sample
144 * types here. Note, the recorded sample_type cannot be changed because
145 * it is needed to continue to parse events.
146 * See also evsel__has_callchain().
148 __u64 synth_sample_type;
151 * bpf_counter_ops serves two use cases:
152 * 1. perf-stat -b counting events used byBPF programs
153 * 2. perf-stat --use-bpf use BPF programs to aggregate counts
155 struct bpf_counter_ops *bpf_counter_ops;
157 struct list_head bpf_counter_list; /* for perf-stat -b */
158 struct list_head bpf_filters; /* for perf-record --filter */
160 /* for perf-stat --use-bpf */
161 int bperf_leader_prog_fd;
162 int bperf_leader_link_fd;
164 struct bperf_leader_bpf *leader_skel;
165 struct bperf_follower_bpf *follower_skel;
168 unsigned long open_flags;
169 int precise_ip_original;
171 /* for missing_features */
172 struct perf_pmu *pmu;
175 struct perf_missing_features {
194 bool branch_counters;
197 extern struct perf_missing_features perf_missing_features;
203 static inline struct perf_cpu_map *evsel__cpus(struct evsel *evsel)
205 return perf_evsel__cpus(&evsel->core);
208 static inline int evsel__nr_cpus(struct evsel *evsel)
210 return perf_cpu_map__nr(evsel__cpus(evsel));
213 void evsel__compute_deltas(struct evsel *evsel, int cpu, int thread,
214 struct perf_counts_values *count);
216 int evsel__object_config(size_t object_size,
217 int (*init)(struct evsel *evsel),
218 void (*fini)(struct evsel *evsel));
220 struct perf_pmu *evsel__find_pmu(const struct evsel *evsel);
221 bool evsel__is_aux_event(const struct evsel *evsel);
223 struct evsel *evsel__new_idx(struct perf_event_attr *attr, int idx);
225 static inline struct evsel *evsel__new(struct perf_event_attr *attr)
227 return evsel__new_idx(attr, 0);
230 struct evsel *evsel__clone(struct evsel *orig);
232 int copy_config_terms(struct list_head *dst, struct list_head *src);
233 void free_config_terms(struct list_head *config_terms);
236 #ifdef HAVE_LIBTRACEEVENT
237 struct evsel *evsel__newtp_idx(const char *sys, const char *name, int idx, bool format);
240 * Returns pointer with encoded error via <linux/err.h> interface.
242 static inline struct evsel *evsel__newtp(const char *sys, const char *name)
244 return evsel__newtp_idx(sys, name, 0, true);
248 #ifdef HAVE_LIBTRACEEVENT
249 struct tep_event *event_format__new(const char *sys, const char *name);
252 void evsel__init(struct evsel *evsel, struct perf_event_attr *attr, int idx);
253 void evsel__exit(struct evsel *evsel);
254 void evsel__delete(struct evsel *evsel);
256 struct callchain_param;
258 void evsel__config(struct evsel *evsel, struct record_opts *opts,
259 struct callchain_param *callchain);
260 void evsel__config_callchain(struct evsel *evsel, struct record_opts *opts,
261 struct callchain_param *callchain);
263 int __evsel__sample_size(u64 sample_type);
264 void evsel__calc_id_pos(struct evsel *evsel);
266 bool evsel__is_cache_op_valid(u8 type, u8 op);
268 static inline bool evsel__is_bpf(struct evsel *evsel)
270 return evsel->bpf_counter_ops != NULL;
273 static inline bool evsel__is_bperf(struct evsel *evsel)
275 return evsel->bpf_counter_ops != NULL && list_empty(&evsel->bpf_counter_list);
278 #define EVSEL__MAX_ALIASES 8
280 extern const char *const evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX][EVSEL__MAX_ALIASES];
281 extern const char *const evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX][EVSEL__MAX_ALIASES];
282 extern const char *const evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX][EVSEL__MAX_ALIASES];
283 extern const char *const evsel__hw_names[PERF_COUNT_HW_MAX];
284 extern const char *const evsel__sw_names[PERF_COUNT_SW_MAX];
285 extern char *evsel__bpf_counter_events;
286 bool evsel__match_bpf_counter_events(const char *name);
287 int arch_evsel__hw_name(struct evsel *evsel, char *bf, size_t size);
289 int __evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result, char *bf, size_t size);
290 const char *evsel__name(struct evsel *evsel);
291 bool evsel__name_is(struct evsel *evsel, const char *name);
292 const char *evsel__metric_id(const struct evsel *evsel);
294 static inline bool evsel__is_tool(const struct evsel *evsel)
296 return evsel->tool_event != PERF_TOOL_NONE;
299 const char *evsel__group_name(struct evsel *evsel);
300 int evsel__group_desc(struct evsel *evsel, char *buf, size_t size);
302 void __evsel__set_sample_bit(struct evsel *evsel, enum perf_event_sample_format bit);
303 void __evsel__reset_sample_bit(struct evsel *evsel, enum perf_event_sample_format bit);
305 #define evsel__set_sample_bit(evsel, bit) \
306 __evsel__set_sample_bit(evsel, PERF_SAMPLE_##bit)
308 #define evsel__reset_sample_bit(evsel, bit) \
309 __evsel__reset_sample_bit(evsel, PERF_SAMPLE_##bit)
311 void evsel__set_sample_id(struct evsel *evsel, bool use_sample_identifier);
313 void arch_evsel__set_sample_weight(struct evsel *evsel);
314 void arch__post_evsel_config(struct evsel *evsel, struct perf_event_attr *attr);
315 int arch_evsel__open_strerror(struct evsel *evsel, char *msg, size_t size);
317 int evsel__set_filter(struct evsel *evsel, const char *filter);
318 int evsel__append_tp_filter(struct evsel *evsel, const char *filter);
319 int evsel__append_addr_filter(struct evsel *evsel, const char *filter);
320 int evsel__enable_cpu(struct evsel *evsel, int cpu_map_idx);
321 int evsel__enable(struct evsel *evsel);
322 int evsel__disable(struct evsel *evsel);
323 int evsel__disable_cpu(struct evsel *evsel, int cpu_map_idx);
325 int evsel__open_per_cpu(struct evsel *evsel, struct perf_cpu_map *cpus, int cpu_map_idx);
326 int evsel__open_per_thread(struct evsel *evsel, struct perf_thread_map *threads);
327 int evsel__open(struct evsel *evsel, struct perf_cpu_map *cpus,
328 struct perf_thread_map *threads);
329 void evsel__close(struct evsel *evsel);
330 int evsel__prepare_open(struct evsel *evsel, struct perf_cpu_map *cpus,
331 struct perf_thread_map *threads);
332 bool evsel__detect_missing_features(struct evsel *evsel);
334 bool evsel__precise_ip_fallback(struct evsel *evsel);
338 #ifdef HAVE_LIBTRACEEVENT
339 void *evsel__rawptr(struct evsel *evsel, struct perf_sample *sample, const char *name);
340 u64 evsel__intval(struct evsel *evsel, struct perf_sample *sample, const char *name);
341 u64 evsel__intval_common(struct evsel *evsel, struct perf_sample *sample, const char *name);
342 char evsel__taskstate(struct evsel *evsel, struct perf_sample *sample, const char *name);
344 static inline char *evsel__strval(struct evsel *evsel, struct perf_sample *sample, const char *name)
346 return evsel__rawptr(evsel, sample, name);
350 struct tep_format_field;
352 u64 format_field__intval(struct tep_format_field *field, struct perf_sample *sample, bool needs_swap);
354 struct tep_format_field *evsel__field(struct evsel *evsel, const char *name);
355 struct tep_format_field *evsel__common_field(struct evsel *evsel, const char *name);
357 static inline bool __evsel__match(const struct evsel *evsel, u32 type, u64 config)
359 if (evsel->core.attr.type != type)
362 if ((type == PERF_TYPE_HARDWARE || type == PERF_TYPE_HW_CACHE) &&
363 perf_pmus__supports_extended_type())
364 return (evsel->core.attr.config & PERF_HW_EVENT_MASK) == config;
366 return evsel->core.attr.config == config;
369 #define evsel__match(evsel, t, c) __evsel__match(evsel, PERF_TYPE_##t, PERF_COUNT_##c)
371 static inline bool evsel__match2(struct evsel *e1, struct evsel *e2)
373 return (e1->core.attr.type == e2->core.attr.type) &&
374 (e1->core.attr.config == e2->core.attr.config);
377 int evsel__read_counter(struct evsel *evsel, int cpu_map_idx, int thread);
379 int __evsel__read_on_cpu(struct evsel *evsel, int cpu_map_idx, int thread, bool scale);
382 * evsel__read_on_cpu - Read out the results on a CPU and thread
384 * @evsel - event selector to read value
385 * @cpu_map_idx - CPU of interest
386 * @thread - thread of interest
388 static inline int evsel__read_on_cpu(struct evsel *evsel, int cpu_map_idx, int thread)
390 return __evsel__read_on_cpu(evsel, cpu_map_idx, thread, false);
394 * evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
396 * @evsel - event selector to read value
397 * @cpu_map_idx - CPU of interest
398 * @thread - thread of interest
400 static inline int evsel__read_on_cpu_scaled(struct evsel *evsel, int cpu_map_idx, int thread)
402 return __evsel__read_on_cpu(evsel, cpu_map_idx, thread, true);
405 int evsel__parse_sample(struct evsel *evsel, union perf_event *event,
406 struct perf_sample *sample);
408 int evsel__parse_sample_timestamp(struct evsel *evsel, union perf_event *event,
411 u16 evsel__id_hdr_size(struct evsel *evsel);
413 static inline struct evsel *evsel__next(struct evsel *evsel)
415 return list_entry(evsel->core.node.next, struct evsel, core.node);
418 static inline struct evsel *evsel__prev(struct evsel *evsel)
420 return list_entry(evsel->core.node.prev, struct evsel, core.node);
424 * evsel__is_group_leader - Return whether given evsel is a leader event
426 * @evsel - evsel selector to be tested
428 * Return %true if @evsel is a group leader or a stand-alone event
430 static inline bool evsel__is_group_leader(const struct evsel *evsel)
432 return evsel->core.leader == &evsel->core;
436 * evsel__is_group_event - Return whether given evsel is a group event
438 * @evsel - evsel selector to be tested
440 * Return %true iff event group view is enabled and @evsel is a actual group
441 * leader which has other members in the group
443 static inline bool evsel__is_group_event(struct evsel *evsel)
445 if (!symbol_conf.event_group)
448 return evsel__is_group_leader(evsel) && evsel->core.nr_members > 1;
451 bool evsel__is_function_event(struct evsel *evsel);
453 static inline bool evsel__is_bpf_output(struct evsel *evsel)
455 return evsel__match(evsel, SOFTWARE, SW_BPF_OUTPUT);
458 static inline bool evsel__is_clock(const struct evsel *evsel)
460 return evsel__match(evsel, SOFTWARE, SW_CPU_CLOCK) ||
461 evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK);
464 bool evsel__fallback(struct evsel *evsel, struct target *target, int err,
465 char *msg, size_t msgsize);
466 int evsel__open_strerror(struct evsel *evsel, struct target *target,
467 int err, char *msg, size_t size);
469 static inline int evsel__group_idx(struct evsel *evsel)
471 return evsel->core.idx - evsel->core.leader->idx;
474 /* Iterates group WITHOUT the leader. */
475 #define for_each_group_member_head(_evsel, _leader, _head) \
476 for ((_evsel) = list_entry((_leader)->core.node.next, struct evsel, core.node); \
477 (_evsel) && &(_evsel)->core.node != (_head) && \
478 (_evsel)->core.leader == &(_leader)->core; \
479 (_evsel) = list_entry((_evsel)->core.node.next, struct evsel, core.node))
481 #define for_each_group_member(_evsel, _leader) \
482 for_each_group_member_head(_evsel, _leader, &(_leader)->evlist->core.entries)
484 /* Iterates group WITH the leader. */
485 #define for_each_group_evsel_head(_evsel, _leader, _head) \
486 for ((_evsel) = _leader; \
487 (_evsel) && &(_evsel)->core.node != (_head) && \
488 (_evsel)->core.leader == &(_leader)->core; \
489 (_evsel) = list_entry((_evsel)->core.node.next, struct evsel, core.node))
491 #define for_each_group_evsel(_evsel, _leader) \
492 for_each_group_evsel_head(_evsel, _leader, &(_leader)->evlist->core.entries)
494 static inline bool evsel__has_branch_callstack(const struct evsel *evsel)
496 return evsel->core.attr.branch_sample_type & PERF_SAMPLE_BRANCH_CALL_STACK;
499 static inline bool evsel__has_branch_hw_idx(const struct evsel *evsel)
501 return evsel->core.attr.branch_sample_type & PERF_SAMPLE_BRANCH_HW_INDEX;
504 static inline bool evsel__has_callchain(const struct evsel *evsel)
507 * For reporting purposes, an evsel sample can have a recorded callchain
508 * or a callchain synthesized from AUX area data.
510 return evsel->core.attr.sample_type & PERF_SAMPLE_CALLCHAIN ||
511 evsel->synth_sample_type & PERF_SAMPLE_CALLCHAIN;
514 static inline bool evsel__has_br_stack(const struct evsel *evsel)
517 * For reporting purposes, an evsel sample can have a recorded branch
518 * stack or a branch stack synthesized from AUX area data.
520 return evsel->core.attr.sample_type & PERF_SAMPLE_BRANCH_STACK ||
521 evsel->synth_sample_type & PERF_SAMPLE_BRANCH_STACK;
524 static inline bool evsel__is_dummy_event(struct evsel *evsel)
526 return (evsel->core.attr.type == PERF_TYPE_SOFTWARE) &&
527 (evsel->core.attr.config == PERF_COUNT_SW_DUMMY);
530 struct perf_env *evsel__env(struct evsel *evsel);
532 int evsel__store_ids(struct evsel *evsel, struct evlist *evlist);
534 void evsel__zero_per_pkg(struct evsel *evsel);
535 bool evsel__is_hybrid(const struct evsel *evsel);
536 struct evsel *evsel__leader(const struct evsel *evsel);
537 bool evsel__has_leader(struct evsel *evsel, struct evsel *leader);
538 bool evsel__is_leader(struct evsel *evsel);
539 void evsel__set_leader(struct evsel *evsel, struct evsel *leader);
540 int evsel__source_count(const struct evsel *evsel);
541 void evsel__remove_from_group(struct evsel *evsel, struct evsel *leader);
543 bool arch_evsel__must_be_in_group(const struct evsel *evsel);
546 * Macro to swap the bit-field postition and size.
548 * - dont need to swap the entire u64 &&
549 * - when u64 has variable bit-field sizes &&
550 * - when presented in a host endian which is different
551 * than the source endian of the perf.data file
553 #define bitfield_swap(src, pos, size) \
554 ((((src) >> (pos)) & ((1ull << (size)) - 1)) << (63 - ((pos) + (size) - 1)))
556 u64 evsel__bitfield_swap_branch_flags(u64 value);
557 void evsel__set_config_if_unset(struct perf_pmu *pmu, struct evsel *evsel,
558 const char *config_name, u64 val);
560 #endif /* __PERF_EVSEL_H */