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,
52 PERF_EVSEL__CONFIG_TERM_MAX,
55 struct perf_evsel_config_term {
56 struct list_head list;
72 /** struct perf_evsel - event selector
74 * @evlist - evlist this evsel is in, if it is in one.
75 * @node - To insert it into evlist->entries or in other list_heads, say in
76 * the event parsing routines.
77 * @name - Can be set to retain the original event name passed by the user,
78 * so that when showing results in tools such as 'perf stat', we
79 * show the name used, not some alias.
80 * @id_pos: the position of the event id (PERF_SAMPLE_ID or
81 * PERF_SAMPLE_IDENTIFIER) in a sample event i.e. in the array of
83 * @is_pos: the position (counting backwards) of the event id (PERF_SAMPLE_ID or
84 * PERF_SAMPLE_IDENTIFIER) in a non-sample event i.e. if sample_id_all
85 * is used there is an id sample appended to non-sample events
86 * @priv: And what is in its containing unnamed union are tool specific
89 struct list_head node;
90 struct perf_evlist *evlist;
91 struct perf_event_attr attr;
94 struct xyarray *sample_id;
96 struct perf_counts *counts;
97 struct perf_counts *prev_raw_counts;
103 struct event_format *tp_format;
107 struct cgroup_sel *cgrp;
109 struct cpu_map *cpus;
110 struct cpu_map *own_cpus;
111 struct thread_map *threads;
112 unsigned int sample_size;
124 bool ignore_missing_thread;
125 /* parse modifier helper */
129 unsigned long *per_pkg_mask;
130 struct perf_evsel *leader;
132 bool cmdline_group_boundary;
133 struct list_head config_terms;
135 bool auto_merge_stats;
137 const char * metric_expr;
138 const char * metric_name;
139 struct perf_evsel **metric_events;
153 static inline struct cpu_map *perf_evsel__cpus(struct perf_evsel *evsel)
158 static inline int perf_evsel__nr_cpus(struct perf_evsel *evsel)
160 return perf_evsel__cpus(evsel)->nr;
163 void perf_counts_values__scale(struct perf_counts_values *count,
164 bool scale, s8 *pscaled);
166 void perf_evsel__compute_deltas(struct perf_evsel *evsel, int cpu, int thread,
167 struct perf_counts_values *count);
169 int perf_evsel__object_config(size_t object_size,
170 int (*init)(struct perf_evsel *evsel),
171 void (*fini)(struct perf_evsel *evsel));
173 struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx);
175 static inline struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr)
177 return perf_evsel__new_idx(attr, 0);
180 struct perf_evsel *perf_evsel__newtp_idx(const char *sys, const char *name, int idx);
183 * Returns pointer with encoded error via <linux/err.h> interface.
185 static inline struct perf_evsel *perf_evsel__newtp(const char *sys, const char *name)
187 return perf_evsel__newtp_idx(sys, name, 0);
190 struct perf_evsel *perf_evsel__new_cycles(bool precise);
192 struct event_format *event_format__new(const char *sys, const char *name);
194 void perf_evsel__init(struct perf_evsel *evsel,
195 struct perf_event_attr *attr, int idx);
196 void perf_evsel__exit(struct perf_evsel *evsel);
197 void perf_evsel__delete(struct perf_evsel *evsel);
199 struct callchain_param;
201 void perf_evsel__config(struct perf_evsel *evsel,
202 struct record_opts *opts,
203 struct callchain_param *callchain);
204 void perf_evsel__config_callchain(struct perf_evsel *evsel,
205 struct record_opts *opts,
206 struct callchain_param *callchain);
208 int __perf_evsel__sample_size(u64 sample_type);
209 void perf_evsel__calc_id_pos(struct perf_evsel *evsel);
211 bool perf_evsel__is_cache_op_valid(u8 type, u8 op);
213 #define PERF_EVSEL__MAX_ALIASES 8
215 extern const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX]
216 [PERF_EVSEL__MAX_ALIASES];
217 extern const char *perf_evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX]
218 [PERF_EVSEL__MAX_ALIASES];
219 extern const char *perf_evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
220 [PERF_EVSEL__MAX_ALIASES];
221 extern const char *perf_evsel__hw_names[PERF_COUNT_HW_MAX];
222 extern const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX];
223 int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result,
224 char *bf, size_t size);
225 const char *perf_evsel__name(struct perf_evsel *evsel);
227 const char *perf_evsel__group_name(struct perf_evsel *evsel);
228 int perf_evsel__group_desc(struct perf_evsel *evsel, char *buf, size_t size);
230 int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
231 void perf_evsel__close_fd(struct perf_evsel *evsel);
233 void __perf_evsel__set_sample_bit(struct perf_evsel *evsel,
234 enum perf_event_sample_format bit);
235 void __perf_evsel__reset_sample_bit(struct perf_evsel *evsel,
236 enum perf_event_sample_format bit);
238 #define perf_evsel__set_sample_bit(evsel, bit) \
239 __perf_evsel__set_sample_bit(evsel, PERF_SAMPLE_##bit)
241 #define perf_evsel__reset_sample_bit(evsel, bit) \
242 __perf_evsel__reset_sample_bit(evsel, PERF_SAMPLE_##bit)
244 void perf_evsel__set_sample_id(struct perf_evsel *evsel,
245 bool use_sample_identifier);
247 int perf_evsel__set_filter(struct perf_evsel *evsel, const char *filter);
248 int perf_evsel__append_tp_filter(struct perf_evsel *evsel, const char *filter);
249 int perf_evsel__append_addr_filter(struct perf_evsel *evsel,
251 int perf_evsel__apply_filter(struct perf_evsel *evsel, const char *filter);
252 int perf_evsel__enable(struct perf_evsel *evsel);
253 int perf_evsel__disable(struct perf_evsel *evsel);
255 int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
256 struct cpu_map *cpus);
257 int perf_evsel__open_per_thread(struct perf_evsel *evsel,
258 struct thread_map *threads);
259 int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
260 struct thread_map *threads);
261 void perf_evsel__close(struct perf_evsel *evsel);
265 void *perf_evsel__rawptr(struct perf_evsel *evsel, struct perf_sample *sample,
267 u64 perf_evsel__intval(struct perf_evsel *evsel, struct perf_sample *sample,
270 static inline char *perf_evsel__strval(struct perf_evsel *evsel,
271 struct perf_sample *sample,
274 return perf_evsel__rawptr(evsel, sample, name);
279 u64 format_field__intval(struct format_field *field, struct perf_sample *sample, bool needs_swap);
281 struct format_field *perf_evsel__field(struct perf_evsel *evsel, const char *name);
283 #define perf_evsel__match(evsel, t, c) \
284 (evsel->attr.type == PERF_TYPE_##t && \
285 evsel->attr.config == PERF_COUNT_##c)
287 static inline bool perf_evsel__match2(struct perf_evsel *e1,
288 struct perf_evsel *e2)
290 return (e1->attr.type == e2->attr.type) &&
291 (e1->attr.config == e2->attr.config);
294 #define perf_evsel__cmp(a, b) \
297 (a)->attr.type == (b)->attr.type && \
298 (a)->attr.config == (b)->attr.config)
300 int perf_evsel__read(struct perf_evsel *evsel, int cpu, int thread,
301 struct perf_counts_values *count);
303 int perf_evsel__read_counter(struct perf_evsel *evsel, int cpu, int thread);
305 int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
306 int cpu, int thread, bool scale);
309 * perf_evsel__read_on_cpu - Read out the results on a CPU and thread
311 * @evsel - event selector to read value
312 * @cpu - CPU of interest
313 * @thread - thread of interest
315 static inline int perf_evsel__read_on_cpu(struct perf_evsel *evsel,
318 return __perf_evsel__read_on_cpu(evsel, cpu, thread, false);
322 * perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
324 * @evsel - event selector to read value
325 * @cpu - CPU of interest
326 * @thread - thread of interest
328 static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel,
331 return __perf_evsel__read_on_cpu(evsel, cpu, thread, true);
334 int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
335 struct perf_sample *sample);
337 static inline struct perf_evsel *perf_evsel__next(struct perf_evsel *evsel)
339 return list_entry(evsel->node.next, struct perf_evsel, node);
342 static inline struct perf_evsel *perf_evsel__prev(struct perf_evsel *evsel)
344 return list_entry(evsel->node.prev, struct perf_evsel, node);
348 * perf_evsel__is_group_leader - Return whether given evsel is a leader event
350 * @evsel - evsel selector to be tested
352 * Return %true if @evsel is a group leader or a stand-alone event
354 static inline bool perf_evsel__is_group_leader(const struct perf_evsel *evsel)
356 return evsel->leader == evsel;
360 * perf_evsel__is_group_event - Return whether given evsel is a group event
362 * @evsel - evsel selector to be tested
364 * Return %true iff event group view is enabled and @evsel is a actual group
365 * leader which has other members in the group
367 static inline bool perf_evsel__is_group_event(struct perf_evsel *evsel)
369 if (!symbol_conf.event_group)
372 return perf_evsel__is_group_leader(evsel) && evsel->nr_members > 1;
375 bool perf_evsel__is_function_event(struct perf_evsel *evsel);
377 static inline bool perf_evsel__is_bpf_output(struct perf_evsel *evsel)
379 struct perf_event_attr *attr = &evsel->attr;
381 return (attr->config == PERF_COUNT_SW_BPF_OUTPUT) &&
382 (attr->type == PERF_TYPE_SOFTWARE);
385 struct perf_attr_details {
393 int perf_evsel__fprintf(struct perf_evsel *evsel,
394 struct perf_attr_details *details, FILE *fp);
396 #define EVSEL__PRINT_IP (1<<0)
397 #define EVSEL__PRINT_SYM (1<<1)
398 #define EVSEL__PRINT_DSO (1<<2)
399 #define EVSEL__PRINT_SYMOFFSET (1<<3)
400 #define EVSEL__PRINT_ONELINE (1<<4)
401 #define EVSEL__PRINT_SRCLINE (1<<5)
402 #define EVSEL__PRINT_UNKNOWN_AS_ADDR (1<<6)
403 #define EVSEL__PRINT_CALLCHAIN_ARROW (1<<7)
404 #define EVSEL__PRINT_SKIP_IGNORED (1<<8)
406 struct callchain_cursor;
408 int sample__fprintf_callchain(struct perf_sample *sample, int left_alignment,
409 unsigned int print_opts,
410 struct callchain_cursor *cursor, FILE *fp);
412 int sample__fprintf_sym(struct perf_sample *sample, struct addr_location *al,
413 int left_alignment, unsigned int print_opts,
414 struct callchain_cursor *cursor, FILE *fp);
416 bool perf_evsel__fallback(struct perf_evsel *evsel, int err,
417 char *msg, size_t msgsize);
418 int perf_evsel__open_strerror(struct perf_evsel *evsel, struct target *target,
419 int err, char *msg, size_t size);
421 static inline int perf_evsel__group_idx(struct perf_evsel *evsel)
423 return evsel->idx - evsel->leader->idx;
426 #define for_each_group_member(_evsel, _leader) \
427 for ((_evsel) = list_entry((_leader)->node.next, struct perf_evsel, node); \
428 (_evsel) && (_evsel)->leader == (_leader); \
429 (_evsel) = list_entry((_evsel)->node.next, struct perf_evsel, node))
431 static inline bool perf_evsel__has_branch_callstack(const struct perf_evsel *evsel)
433 return evsel->attr.branch_sample_type & PERF_SAMPLE_BRANCH_CALL_STACK;
436 typedef int (*attr__fprintf_f)(FILE *, const char *, const char *, void *);
438 int perf_event_attr__fprintf(FILE *fp, struct perf_event_attr *attr,
439 attr__fprintf_f attr__fprintf, void *priv);
441 char *perf_evsel__env_arch(struct perf_evsel *evsel);
442 char *perf_evsel__env_cpuid(struct perf_evsel *evsel);
444 #endif /* __PERF_EVSEL_H */