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>
18 * Per fd, to map back from PERF_SAMPLE_ID to evsel, only used when there are
19 * more than one entry in the evlist.
21 struct perf_sample_id {
22 struct hlist_node node;
24 struct perf_evsel *evsel;
29 /* Holds total ID period value for PERF_SAMPLE_READ processing. */
36 * The 'struct perf_evsel_config_term' is used to pass event
37 * specific configuration data to perf_evsel__config routine.
38 * It is allocated within event parsing and attached to
39 * perf_evsel::config_terms list head.
42 PERF_EVSEL__CONFIG_TERM_PERIOD,
43 PERF_EVSEL__CONFIG_TERM_FREQ,
44 PERF_EVSEL__CONFIG_TERM_TIME,
45 PERF_EVSEL__CONFIG_TERM_CALLGRAPH,
46 PERF_EVSEL__CONFIG_TERM_STACK_USER,
47 PERF_EVSEL__CONFIG_TERM_INHERIT,
48 PERF_EVSEL__CONFIG_TERM_MAX_STACK,
49 PERF_EVSEL__CONFIG_TERM_OVERWRITE,
50 PERF_EVSEL__CONFIG_TERM_DRV_CFG,
51 PERF_EVSEL__CONFIG_TERM_BRANCH,
54 struct perf_evsel_config_term {
55 struct list_head list;
72 struct perf_stat_evsel;
74 /** struct perf_evsel - event selector
76 * @evlist - evlist this evsel is in, if it is in one.
77 * @node - To insert it into evlist->entries or in other list_heads, say in
78 * the event parsing routines.
79 * @name - Can be set to retain the original event name passed by the user,
80 * so that when showing results in tools such as 'perf stat', we
81 * show the name used, not some alias.
82 * @id_pos: the position of the event id (PERF_SAMPLE_ID or
83 * PERF_SAMPLE_IDENTIFIER) in a sample event i.e. in the array of
85 * @is_pos: the position (counting backwards) of the event id (PERF_SAMPLE_ID or
86 * PERF_SAMPLE_IDENTIFIER) in a non-sample event i.e. if sample_id_all
87 * is used there is an id sample appended to non-sample events
88 * @priv: And what is in its containing unnamed union are tool specific
91 struct list_head node;
92 struct perf_evlist *evlist;
93 struct perf_event_attr attr;
96 struct xyarray *sample_id;
98 struct perf_counts *counts;
99 struct perf_counts *prev_raw_counts;
105 struct event_format *tp_format;
107 struct perf_stat_evsel *stats;
112 struct cpu_map *cpus;
113 struct cpu_map *own_cpus;
114 struct thread_map *threads;
115 unsigned int sample_size;
127 bool ignore_missing_thread;
129 /* parse modifier helper */
133 unsigned long *per_pkg_mask;
134 struct perf_evsel *leader;
136 bool cmdline_group_boundary;
137 struct list_head config_terms;
139 bool auto_merge_stats;
141 const char * metric_expr;
142 const char * metric_name;
143 struct perf_evsel **metric_events;
146 const char *pmu_name;
154 struct perf_missing_features {
166 extern struct perf_missing_features perf_missing_features;
173 static inline struct cpu_map *perf_evsel__cpus(struct perf_evsel *evsel)
178 static inline int perf_evsel__nr_cpus(struct perf_evsel *evsel)
180 return perf_evsel__cpus(evsel)->nr;
183 void perf_counts_values__scale(struct perf_counts_values *count,
184 bool scale, s8 *pscaled);
186 void perf_evsel__compute_deltas(struct perf_evsel *evsel, int cpu, int thread,
187 struct perf_counts_values *count);
189 int perf_evsel__object_config(size_t object_size,
190 int (*init)(struct perf_evsel *evsel),
191 void (*fini)(struct perf_evsel *evsel));
193 struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx);
195 static inline struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr)
197 return perf_evsel__new_idx(attr, 0);
200 struct perf_evsel *perf_evsel__newtp_idx(const char *sys, const char *name, int idx);
203 * Returns pointer with encoded error via <linux/err.h> interface.
205 static inline struct perf_evsel *perf_evsel__newtp(const char *sys, const char *name)
207 return perf_evsel__newtp_idx(sys, name, 0);
210 struct perf_evsel *perf_evsel__new_cycles(bool precise);
212 struct event_format *event_format__new(const char *sys, const char *name);
214 void perf_evsel__init(struct perf_evsel *evsel,
215 struct perf_event_attr *attr, int idx);
216 void perf_evsel__exit(struct perf_evsel *evsel);
217 void perf_evsel__delete(struct perf_evsel *evsel);
219 struct callchain_param;
221 void perf_evsel__config(struct perf_evsel *evsel,
222 struct record_opts *opts,
223 struct callchain_param *callchain);
224 void perf_evsel__config_callchain(struct perf_evsel *evsel,
225 struct record_opts *opts,
226 struct callchain_param *callchain);
228 int __perf_evsel__sample_size(u64 sample_type);
229 void perf_evsel__calc_id_pos(struct perf_evsel *evsel);
231 bool perf_evsel__is_cache_op_valid(u8 type, u8 op);
233 #define PERF_EVSEL__MAX_ALIASES 8
235 extern const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX]
236 [PERF_EVSEL__MAX_ALIASES];
237 extern const char *perf_evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX]
238 [PERF_EVSEL__MAX_ALIASES];
239 extern const char *perf_evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
240 [PERF_EVSEL__MAX_ALIASES];
241 extern const char *perf_evsel__hw_names[PERF_COUNT_HW_MAX];
242 extern const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX];
243 int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result,
244 char *bf, size_t size);
245 const char *perf_evsel__name(struct perf_evsel *evsel);
247 const char *perf_evsel__group_name(struct perf_evsel *evsel);
248 int perf_evsel__group_desc(struct perf_evsel *evsel, char *buf, size_t size);
250 int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
251 void perf_evsel__close_fd(struct perf_evsel *evsel);
253 void __perf_evsel__set_sample_bit(struct perf_evsel *evsel,
254 enum perf_event_sample_format bit);
255 void __perf_evsel__reset_sample_bit(struct perf_evsel *evsel,
256 enum perf_event_sample_format bit);
258 #define perf_evsel__set_sample_bit(evsel, bit) \
259 __perf_evsel__set_sample_bit(evsel, PERF_SAMPLE_##bit)
261 #define perf_evsel__reset_sample_bit(evsel, bit) \
262 __perf_evsel__reset_sample_bit(evsel, PERF_SAMPLE_##bit)
264 void perf_evsel__set_sample_id(struct perf_evsel *evsel,
265 bool use_sample_identifier);
267 int perf_evsel__set_filter(struct perf_evsel *evsel, const char *filter);
268 int perf_evsel__append_tp_filter(struct perf_evsel *evsel, const char *filter);
269 int perf_evsel__append_addr_filter(struct perf_evsel *evsel,
271 int perf_evsel__apply_filter(struct perf_evsel *evsel, const char *filter);
272 int perf_evsel__enable(struct perf_evsel *evsel);
273 int perf_evsel__disable(struct perf_evsel *evsel);
275 int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
276 struct cpu_map *cpus);
277 int perf_evsel__open_per_thread(struct perf_evsel *evsel,
278 struct thread_map *threads);
279 int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
280 struct thread_map *threads);
281 void perf_evsel__close(struct perf_evsel *evsel);
285 void *perf_evsel__rawptr(struct perf_evsel *evsel, struct perf_sample *sample,
287 u64 perf_evsel__intval(struct perf_evsel *evsel, struct perf_sample *sample,
290 static inline char *perf_evsel__strval(struct perf_evsel *evsel,
291 struct perf_sample *sample,
294 return perf_evsel__rawptr(evsel, sample, name);
299 u64 format_field__intval(struct format_field *field, struct perf_sample *sample, bool needs_swap);
301 struct format_field *perf_evsel__field(struct perf_evsel *evsel, const char *name);
303 #define perf_evsel__match(evsel, t, c) \
304 (evsel->attr.type == PERF_TYPE_##t && \
305 evsel->attr.config == PERF_COUNT_##c)
307 static inline bool perf_evsel__match2(struct perf_evsel *e1,
308 struct perf_evsel *e2)
310 return (e1->attr.type == e2->attr.type) &&
311 (e1->attr.config == e2->attr.config);
314 #define perf_evsel__cmp(a, b) \
317 (a)->attr.type == (b)->attr.type && \
318 (a)->attr.config == (b)->attr.config)
320 int perf_evsel__read(struct perf_evsel *evsel, int cpu, int thread,
321 struct perf_counts_values *count);
323 int perf_evsel__read_counter(struct perf_evsel *evsel, int cpu, int thread);
325 int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
326 int cpu, int thread, bool scale);
329 * perf_evsel__read_on_cpu - Read out the results on a CPU and thread
331 * @evsel - event selector to read value
332 * @cpu - CPU of interest
333 * @thread - thread of interest
335 static inline int perf_evsel__read_on_cpu(struct perf_evsel *evsel,
338 return __perf_evsel__read_on_cpu(evsel, cpu, thread, false);
342 * perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
344 * @evsel - event selector to read value
345 * @cpu - CPU of interest
346 * @thread - thread of interest
348 static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel,
351 return __perf_evsel__read_on_cpu(evsel, cpu, thread, true);
354 int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
355 struct perf_sample *sample);
357 int perf_evsel__parse_sample_timestamp(struct perf_evsel *evsel,
358 union perf_event *event,
361 static inline struct perf_evsel *perf_evsel__next(struct perf_evsel *evsel)
363 return list_entry(evsel->node.next, struct perf_evsel, node);
366 static inline struct perf_evsel *perf_evsel__prev(struct perf_evsel *evsel)
368 return list_entry(evsel->node.prev, struct perf_evsel, node);
372 * perf_evsel__is_group_leader - Return whether given evsel is a leader event
374 * @evsel - evsel selector to be tested
376 * Return %true if @evsel is a group leader or a stand-alone event
378 static inline bool perf_evsel__is_group_leader(const struct perf_evsel *evsel)
380 return evsel->leader == evsel;
384 * perf_evsel__is_group_event - Return whether given evsel is a group event
386 * @evsel - evsel selector to be tested
388 * Return %true iff event group view is enabled and @evsel is a actual group
389 * leader which has other members in the group
391 static inline bool perf_evsel__is_group_event(struct perf_evsel *evsel)
393 if (!symbol_conf.event_group)
396 return perf_evsel__is_group_leader(evsel) && evsel->nr_members > 1;
399 bool perf_evsel__is_function_event(struct perf_evsel *evsel);
401 static inline bool perf_evsel__is_bpf_output(struct perf_evsel *evsel)
403 struct perf_event_attr *attr = &evsel->attr;
405 return (attr->config == PERF_COUNT_SW_BPF_OUTPUT) &&
406 (attr->type == PERF_TYPE_SOFTWARE);
409 struct perf_attr_details {
417 int perf_evsel__fprintf(struct perf_evsel *evsel,
418 struct perf_attr_details *details, FILE *fp);
420 #define EVSEL__PRINT_IP (1<<0)
421 #define EVSEL__PRINT_SYM (1<<1)
422 #define EVSEL__PRINT_DSO (1<<2)
423 #define EVSEL__PRINT_SYMOFFSET (1<<3)
424 #define EVSEL__PRINT_ONELINE (1<<4)
425 #define EVSEL__PRINT_SRCLINE (1<<5)
426 #define EVSEL__PRINT_UNKNOWN_AS_ADDR (1<<6)
427 #define EVSEL__PRINT_CALLCHAIN_ARROW (1<<7)
428 #define EVSEL__PRINT_SKIP_IGNORED (1<<8)
430 struct callchain_cursor;
432 int sample__fprintf_callchain(struct perf_sample *sample, int left_alignment,
433 unsigned int print_opts,
434 struct callchain_cursor *cursor, FILE *fp);
436 int sample__fprintf_sym(struct perf_sample *sample, struct addr_location *al,
437 int left_alignment, unsigned int print_opts,
438 struct callchain_cursor *cursor, FILE *fp);
440 bool perf_evsel__fallback(struct perf_evsel *evsel, int err,
441 char *msg, size_t msgsize);
442 int perf_evsel__open_strerror(struct perf_evsel *evsel, struct target *target,
443 int err, char *msg, size_t size);
445 static inline int perf_evsel__group_idx(struct perf_evsel *evsel)
447 return evsel->idx - evsel->leader->idx;
450 #define for_each_group_member(_evsel, _leader) \
451 for ((_evsel) = list_entry((_leader)->node.next, struct perf_evsel, node); \
452 (_evsel) && (_evsel)->leader == (_leader); \
453 (_evsel) = list_entry((_evsel)->node.next, struct perf_evsel, node))
455 static inline bool perf_evsel__has_branch_callstack(const struct perf_evsel *evsel)
457 return evsel->attr.branch_sample_type & PERF_SAMPLE_BRANCH_CALL_STACK;
460 typedef int (*attr__fprintf_f)(FILE *, const char *, const char *, void *);
462 int perf_event_attr__fprintf(FILE *fp, struct perf_event_attr *attr,
463 attr__fprintf_f attr__fprintf, void *priv);
465 struct perf_env *perf_evsel__env(struct perf_evsel *evsel);
467 #endif /* __PERF_EVSEL_H */