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1#ifndef __PERF_EVLIST_H
2#define __PERF_EVLIST_H 1
3
4#include <linux/atomic.h>
5#include <linux/list.h>
6#include <api/fd/array.h>
7#include <stdio.h>
8#include "../perf.h"
9#include "event.h"
10#include "evsel.h"
11#include "util.h"
12#include "auxtrace.h"
13#include <unistd.h>
14
15struct pollfd;
16struct thread_map;
17struct cpu_map;
18struct record_opts;
19
20#define PERF_EVLIST__HLIST_BITS 8
21#define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS)
22
23/**
24 * struct perf_mmap - perf's ring buffer mmap details
25 *
26 * @refcnt - e.g. code using PERF_EVENT_IOC_SET_OUTPUT to share this
27 */
28struct perf_mmap {
29 void *base;
30 int mask;
31 atomic_t refcnt;
32 u64 prev;
33 struct auxtrace_mmap auxtrace_mmap;
34 char event_copy[PERF_SAMPLE_MAX_SIZE] __attribute__((aligned(8)));
35};
36
37struct perf_evlist {
38 struct list_head entries;
39 struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
40 int nr_entries;
41 int nr_groups;
42 int nr_mmaps;
43 bool overwrite;
44 bool enabled;
45 bool has_user_cpus;
46 size_t mmap_len;
47 int id_pos;
48 int is_pos;
49 u64 combined_sample_type;
50 struct {
51 int cork_fd;
52 pid_t pid;
53 } workload;
54 struct fdarray pollfd;
55 struct perf_mmap *mmap;
56 struct thread_map *threads;
57 struct cpu_map *cpus;
58 struct perf_evsel *selected;
59 struct events_stats stats;
60 struct perf_env *env;
61};
62
63struct perf_evsel_str_handler {
64 const char *name;
65 void *handler;
66};
67
68struct perf_evlist *perf_evlist__new(void);
69struct perf_evlist *perf_evlist__new_default(void);
70struct perf_evlist *perf_evlist__new_dummy(void);
71void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus,
72 struct thread_map *threads);
73void perf_evlist__exit(struct perf_evlist *evlist);
74void perf_evlist__delete(struct perf_evlist *evlist);
75
76void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry);
77void perf_evlist__remove(struct perf_evlist *evlist, struct perf_evsel *evsel);
78int perf_evlist__add_default(struct perf_evlist *evlist);
79int __perf_evlist__add_default_attrs(struct perf_evlist *evlist,
80 struct perf_event_attr *attrs, size_t nr_attrs);
81
82#define perf_evlist__add_default_attrs(evlist, array) \
83 __perf_evlist__add_default_attrs(evlist, array, ARRAY_SIZE(array))
84
85int perf_evlist__add_dummy(struct perf_evlist *evlist);
86
87int perf_evlist__add_newtp(struct perf_evlist *evlist,
88 const char *sys, const char *name, void *handler);
89
90int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter);
91int perf_evlist__set_filter_pid(struct perf_evlist *evlist, pid_t pid);
92int perf_evlist__set_filter_pids(struct perf_evlist *evlist, size_t npids, pid_t *pids);
93
94struct perf_evsel *
95perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id);
96
97struct perf_evsel *
98perf_evlist__find_tracepoint_by_name(struct perf_evlist *evlist,
99 const char *name);
100
101void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel,
102 int cpu, int thread, u64 id);
103int perf_evlist__id_add_fd(struct perf_evlist *evlist,
104 struct perf_evsel *evsel,
105 int cpu, int thread, int fd);
106
107int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd);
108int perf_evlist__alloc_pollfd(struct perf_evlist *evlist);
109int perf_evlist__filter_pollfd(struct perf_evlist *evlist, short revents_and_mask);
110
111int perf_evlist__poll(struct perf_evlist *evlist, int timeout);
112
113struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id);
114struct perf_evsel *perf_evlist__id2evsel_strict(struct perf_evlist *evlist,
115 u64 id);
116
117struct perf_sample_id *perf_evlist__id2sid(struct perf_evlist *evlist, u64 id);
118
119union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx);
120
121void perf_evlist__mmap_consume(struct perf_evlist *evlist, int idx);
122
123int perf_evlist__open(struct perf_evlist *evlist);
124void perf_evlist__close(struct perf_evlist *evlist);
125
126void perf_evlist__set_id_pos(struct perf_evlist *evlist);
127bool perf_can_sample_identifier(void);
128bool perf_can_record_switch_events(void);
129bool perf_can_record_cpu_wide(void);
130void perf_evlist__config(struct perf_evlist *evlist, struct record_opts *opts);
131int record_opts__config(struct record_opts *opts);
132
133int perf_evlist__prepare_workload(struct perf_evlist *evlist,
134 struct target *target,
135 const char *argv[], bool pipe_output,
136 void (*exec_error)(int signo, siginfo_t *info,
137 void *ucontext));
138int perf_evlist__start_workload(struct perf_evlist *evlist);
139
140struct option;
141
142int __perf_evlist__parse_mmap_pages(unsigned int *mmap_pages, const char *str);
143int perf_evlist__parse_mmap_pages(const struct option *opt,
144 const char *str,
145 int unset);
146
147int perf_evlist__mmap_ex(struct perf_evlist *evlist, unsigned int pages,
148 bool overwrite, unsigned int auxtrace_pages,
149 bool auxtrace_overwrite);
150int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
151 bool overwrite);
152void perf_evlist__munmap(struct perf_evlist *evlist);
153
154void perf_evlist__disable(struct perf_evlist *evlist);
155void perf_evlist__enable(struct perf_evlist *evlist);
156void perf_evlist__toggle_enable(struct perf_evlist *evlist);
157
158int perf_evlist__enable_event_idx(struct perf_evlist *evlist,
159 struct perf_evsel *evsel, int idx);
160
161void perf_evlist__set_selected(struct perf_evlist *evlist,
162 struct perf_evsel *evsel);
163
164void perf_evlist__set_maps(struct perf_evlist *evlist, struct cpu_map *cpus,
165 struct thread_map *threads);
166int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target);
167int perf_evlist__apply_filters(struct perf_evlist *evlist, struct perf_evsel **err_evsel);
168
169void __perf_evlist__set_leader(struct list_head *list);
170void perf_evlist__set_leader(struct perf_evlist *evlist);
171
172u64 perf_evlist__read_format(struct perf_evlist *evlist);
173u64 __perf_evlist__combined_sample_type(struct perf_evlist *evlist);
174u64 perf_evlist__combined_sample_type(struct perf_evlist *evlist);
175u64 perf_evlist__combined_branch_type(struct perf_evlist *evlist);
176bool perf_evlist__sample_id_all(struct perf_evlist *evlist);
177u16 perf_evlist__id_hdr_size(struct perf_evlist *evlist);
178
179int perf_evlist__parse_sample(struct perf_evlist *evlist, union perf_event *event,
180 struct perf_sample *sample);
181
182bool perf_evlist__valid_sample_type(struct perf_evlist *evlist);
183bool perf_evlist__valid_sample_id_all(struct perf_evlist *evlist);
184bool perf_evlist__valid_read_format(struct perf_evlist *evlist);
185
186void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
187 struct list_head *list);
188
189static inline struct perf_evsel *perf_evlist__first(struct perf_evlist *evlist)
190{
191 return list_entry(evlist->entries.next, struct perf_evsel, node);
192}
193
194static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist)
195{
196 return list_entry(evlist->entries.prev, struct perf_evsel, node);
197}
198
199size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp);
200
201int perf_evlist__strerror_open(struct perf_evlist *evlist, int err, char *buf, size_t size);
202int perf_evlist__strerror_mmap(struct perf_evlist *evlist, int err, char *buf, size_t size);
203
204static inline u64 perf_mmap__read_head(struct perf_mmap *mm)
205{
206 struct perf_event_mmap_page *pc = mm->base;
207 u64 head = ACCESS_ONCE(pc->data_head);
208 rmb();
209 return head;
210}
211
212static inline void perf_mmap__write_tail(struct perf_mmap *md, u64 tail)
213{
214 struct perf_event_mmap_page *pc = md->base;
215
216 /*
217 * ensure all reads are done before we write the tail out.
218 */
219 mb();
220 pc->data_tail = tail;
221}
222
223bool perf_evlist__can_select_event(struct perf_evlist *evlist, const char *str);
224void perf_evlist__to_front(struct perf_evlist *evlist,
225 struct perf_evsel *move_evsel);
226
227/**
228 * __evlist__for_each - iterate thru all the evsels
229 * @list: list_head instance to iterate
230 * @evsel: struct evsel iterator
231 */
232#define __evlist__for_each(list, evsel) \
233 list_for_each_entry(evsel, list, node)
234
235/**
236 * evlist__for_each - iterate thru all the evsels
237 * @evlist: evlist instance to iterate
238 * @evsel: struct evsel iterator
239 */
240#define evlist__for_each(evlist, evsel) \
241 __evlist__for_each(&(evlist)->entries, evsel)
242
243/**
244 * __evlist__for_each_continue - continue iteration thru all the evsels
245 * @list: list_head instance to iterate
246 * @evsel: struct evsel iterator
247 */
248#define __evlist__for_each_continue(list, evsel) \
249 list_for_each_entry_continue(evsel, list, node)
250
251/**
252 * evlist__for_each_continue - continue iteration thru all the evsels
253 * @evlist: evlist instance to iterate
254 * @evsel: struct evsel iterator
255 */
256#define evlist__for_each_continue(evlist, evsel) \
257 __evlist__for_each_continue(&(evlist)->entries, evsel)
258
259/**
260 * __evlist__for_each_reverse - iterate thru all the evsels in reverse order
261 * @list: list_head instance to iterate
262 * @evsel: struct evsel iterator
263 */
264#define __evlist__for_each_reverse(list, evsel) \
265 list_for_each_entry_reverse(evsel, list, node)
266
267/**
268 * evlist__for_each_reverse - iterate thru all the evsels in reverse order
269 * @evlist: evlist instance to iterate
270 * @evsel: struct evsel iterator
271 */
272#define evlist__for_each_reverse(evlist, evsel) \
273 __evlist__for_each_reverse(&(evlist)->entries, evsel)
274
275/**
276 * __evlist__for_each_safe - safely iterate thru all the evsels
277 * @list: list_head instance to iterate
278 * @tmp: struct evsel temp iterator
279 * @evsel: struct evsel iterator
280 */
281#define __evlist__for_each_safe(list, tmp, evsel) \
282 list_for_each_entry_safe(evsel, tmp, list, node)
283
284/**
285 * evlist__for_each_safe - safely iterate thru all the evsels
286 * @evlist: evlist instance to iterate
287 * @evsel: struct evsel iterator
288 * @tmp: struct evsel temp iterator
289 */
290#define evlist__for_each_safe(evlist, tmp, evsel) \
291 __evlist__for_each_safe(&(evlist)->entries, tmp, evsel)
292
293void perf_evlist__set_tracking_event(struct perf_evlist *evlist,
294 struct perf_evsel *tracking_evsel);
295
296void perf_event_attr__set_max_precise_ip(struct perf_event_attr *attr);
297
298struct perf_evsel *
299perf_evlist__find_evsel_by_str(struct perf_evlist *evlist, const char *str);
300#endif /* __PERF_EVLIST_H */
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __PERF_EVLIST_H
3#define __PERF_EVLIST_H 1
4
5#include <linux/compiler.h>
6#include <linux/kernel.h>
7#include <linux/refcount.h>
8#include <linux/list.h>
9#include <api/fd/array.h>
10#include <internal/evlist.h>
11#include <internal/evsel.h>
12#include "events_stats.h"
13#include "evsel.h"
14#include <pthread.h>
15#include <signal.h>
16#include <unistd.h>
17
18struct pollfd;
19struct thread_map;
20struct perf_cpu_map;
21struct record_opts;
22
23/*
24 * State machine of bkw_mmap_state:
25 *
26 * .________________(forbid)_____________.
27 * | V
28 * NOTREADY --(0)--> RUNNING --(1)--> DATA_PENDING --(2)--> EMPTY
29 * ^ ^ | ^ |
30 * | |__(forbid)____/ |___(forbid)___/|
31 * | |
32 * \_________________(3)_______________/
33 *
34 * NOTREADY : Backward ring buffers are not ready
35 * RUNNING : Backward ring buffers are recording
36 * DATA_PENDING : We are required to collect data from backward ring buffers
37 * EMPTY : We have collected data from backward ring buffers.
38 *
39 * (0): Setup backward ring buffer
40 * (1): Pause ring buffers for reading
41 * (2): Read from ring buffers
42 * (3): Resume ring buffers for recording
43 */
44enum bkw_mmap_state {
45 BKW_MMAP_NOTREADY,
46 BKW_MMAP_RUNNING,
47 BKW_MMAP_DATA_PENDING,
48 BKW_MMAP_EMPTY,
49};
50
51struct evlist {
52 struct perf_evlist core;
53 int nr_groups;
54 bool enabled;
55 int id_pos;
56 int is_pos;
57 u64 combined_sample_type;
58 enum bkw_mmap_state bkw_mmap_state;
59 struct {
60 int cork_fd;
61 pid_t pid;
62 } workload;
63 struct mmap *mmap;
64 struct mmap *overwrite_mmap;
65 struct evsel *selected;
66 struct events_stats stats;
67 struct perf_env *env;
68 void (*trace_event_sample_raw)(struct evlist *evlist,
69 union perf_event *event,
70 struct perf_sample *sample);
71 u64 first_sample_time;
72 u64 last_sample_time;
73 struct {
74 pthread_t th;
75 volatile int done;
76 } thread;
77 struct {
78 int fd; /* control file descriptor */
79 int ack; /* ack file descriptor for control commands */
80 int pos; /* index at evlist core object to check signals */
81 } ctl_fd;
82};
83
84struct evsel_str_handler {
85 const char *name;
86 void *handler;
87};
88
89struct evlist *evlist__new(void);
90struct evlist *perf_evlist__new_default(void);
91struct evlist *perf_evlist__new_dummy(void);
92void evlist__init(struct evlist *evlist, struct perf_cpu_map *cpus,
93 struct perf_thread_map *threads);
94void evlist__exit(struct evlist *evlist);
95void evlist__delete(struct evlist *evlist);
96
97void evlist__add(struct evlist *evlist, struct evsel *entry);
98void evlist__remove(struct evlist *evlist, struct evsel *evsel);
99
100int __evlist__add_default(struct evlist *evlist, bool precise);
101
102static inline int evlist__add_default(struct evlist *evlist)
103{
104 return __evlist__add_default(evlist, true);
105}
106
107int __evlist__add_default_attrs(struct evlist *evlist,
108 struct perf_event_attr *attrs, size_t nr_attrs);
109
110#define evlist__add_default_attrs(evlist, array) \
111 __evlist__add_default_attrs(evlist, array, ARRAY_SIZE(array))
112
113int evlist__add_dummy(struct evlist *evlist);
114
115int perf_evlist__add_sb_event(struct evlist *evlist,
116 struct perf_event_attr *attr,
117 evsel__sb_cb_t cb,
118 void *data);
119void evlist__set_cb(struct evlist *evlist, evsel__sb_cb_t cb, void *data);
120int perf_evlist__start_sb_thread(struct evlist *evlist,
121 struct target *target);
122void perf_evlist__stop_sb_thread(struct evlist *evlist);
123
124int evlist__add_newtp(struct evlist *evlist, const char *sys, const char *name, void *handler);
125
126int __evlist__set_tracepoints_handlers(struct evlist *evlist,
127 const struct evsel_str_handler *assocs,
128 size_t nr_assocs);
129
130#define evlist__set_tracepoints_handlers(evlist, array) \
131 __evlist__set_tracepoints_handlers(evlist, array, ARRAY_SIZE(array))
132
133void __perf_evlist__set_sample_bit(struct evlist *evlist,
134 enum perf_event_sample_format bit);
135void __perf_evlist__reset_sample_bit(struct evlist *evlist,
136 enum perf_event_sample_format bit);
137
138#define perf_evlist__set_sample_bit(evlist, bit) \
139 __perf_evlist__set_sample_bit(evlist, PERF_SAMPLE_##bit)
140
141#define perf_evlist__reset_sample_bit(evlist, bit) \
142 __perf_evlist__reset_sample_bit(evlist, PERF_SAMPLE_##bit)
143
144int perf_evlist__set_tp_filter(struct evlist *evlist, const char *filter);
145int perf_evlist__set_tp_filter_pid(struct evlist *evlist, pid_t pid);
146int perf_evlist__set_tp_filter_pids(struct evlist *evlist, size_t npids, pid_t *pids);
147
148int perf_evlist__append_tp_filter(struct evlist *evlist, const char *filter);
149
150int perf_evlist__append_tp_filter_pid(struct evlist *evlist, pid_t pid);
151int perf_evlist__append_tp_filter_pids(struct evlist *evlist, size_t npids, pid_t *pids);
152
153struct evsel *
154perf_evlist__find_tracepoint_by_id(struct evlist *evlist, int id);
155
156struct evsel *
157perf_evlist__find_tracepoint_by_name(struct evlist *evlist,
158 const char *name);
159
160int evlist__add_pollfd(struct evlist *evlist, int fd);
161int evlist__filter_pollfd(struct evlist *evlist, short revents_and_mask);
162
163int evlist__poll(struct evlist *evlist, int timeout);
164
165struct evsel *perf_evlist__id2evsel(struct evlist *evlist, u64 id);
166struct evsel *perf_evlist__id2evsel_strict(struct evlist *evlist,
167 u64 id);
168
169struct perf_sample_id *perf_evlist__id2sid(struct evlist *evlist, u64 id);
170
171void perf_evlist__toggle_bkw_mmap(struct evlist *evlist, enum bkw_mmap_state state);
172
173void evlist__mmap_consume(struct evlist *evlist, int idx);
174
175int evlist__open(struct evlist *evlist);
176void evlist__close(struct evlist *evlist);
177
178struct callchain_param;
179
180void perf_evlist__set_id_pos(struct evlist *evlist);
181void perf_evlist__config(struct evlist *evlist, struct record_opts *opts,
182 struct callchain_param *callchain);
183int record_opts__config(struct record_opts *opts);
184
185int perf_evlist__prepare_workload(struct evlist *evlist,
186 struct target *target,
187 const char *argv[], bool pipe_output,
188 void (*exec_error)(int signo, siginfo_t *info,
189 void *ucontext));
190int perf_evlist__start_workload(struct evlist *evlist);
191
192struct option;
193
194int __perf_evlist__parse_mmap_pages(unsigned int *mmap_pages, const char *str);
195int perf_evlist__parse_mmap_pages(const struct option *opt,
196 const char *str,
197 int unset);
198
199unsigned long perf_event_mlock_kb_in_pages(void);
200
201int evlist__mmap_ex(struct evlist *evlist, unsigned int pages,
202 unsigned int auxtrace_pages,
203 bool auxtrace_overwrite, int nr_cblocks,
204 int affinity, int flush, int comp_level);
205int evlist__mmap(struct evlist *evlist, unsigned int pages);
206void evlist__munmap(struct evlist *evlist);
207
208size_t evlist__mmap_size(unsigned long pages);
209
210void evlist__disable(struct evlist *evlist);
211void evlist__enable(struct evlist *evlist);
212void perf_evlist__toggle_enable(struct evlist *evlist);
213
214int perf_evlist__enable_event_idx(struct evlist *evlist,
215 struct evsel *evsel, int idx);
216
217void perf_evlist__set_selected(struct evlist *evlist,
218 struct evsel *evsel);
219
220int perf_evlist__create_maps(struct evlist *evlist, struct target *target);
221int perf_evlist__apply_filters(struct evlist *evlist, struct evsel **err_evsel);
222
223void __perf_evlist__set_leader(struct list_head *list);
224void perf_evlist__set_leader(struct evlist *evlist);
225
226u64 __evlist__combined_sample_type(struct evlist *evlist);
227u64 evlist__combined_sample_type(struct evlist *evlist);
228u64 evlist__combined_branch_type(struct evlist *evlist);
229bool evlist__sample_id_all(struct evlist *evlist);
230u16 perf_evlist__id_hdr_size(struct evlist *evlist);
231
232int perf_evlist__parse_sample(struct evlist *evlist, union perf_event *event,
233 struct perf_sample *sample);
234
235int perf_evlist__parse_sample_timestamp(struct evlist *evlist,
236 union perf_event *event,
237 u64 *timestamp);
238
239bool evlist__valid_sample_type(struct evlist *evlist);
240bool evlist__valid_sample_id_all(struct evlist *evlist);
241bool perf_evlist__valid_read_format(struct evlist *evlist);
242
243void perf_evlist__splice_list_tail(struct evlist *evlist,
244 struct list_head *list);
245
246static inline bool perf_evlist__empty(struct evlist *evlist)
247{
248 return list_empty(&evlist->core.entries);
249}
250
251static inline struct evsel *evlist__first(struct evlist *evlist)
252{
253 struct perf_evsel *evsel = perf_evlist__first(&evlist->core);
254
255 return container_of(evsel, struct evsel, core);
256}
257
258static inline struct evsel *evlist__last(struct evlist *evlist)
259{
260 struct perf_evsel *evsel = perf_evlist__last(&evlist->core);
261
262 return container_of(evsel, struct evsel, core);
263}
264
265int evlist__strerror_open(struct evlist *evlist, int err, char *buf, size_t size);
266int evlist__strerror_mmap(struct evlist *evlist, int err, char *buf, size_t size);
267
268bool perf_evlist__can_select_event(struct evlist *evlist, const char *str);
269void perf_evlist__to_front(struct evlist *evlist,
270 struct evsel *move_evsel);
271
272/**
273 * __evlist__for_each_entry - iterate thru all the evsels
274 * @list: list_head instance to iterate
275 * @evsel: struct evsel iterator
276 */
277#define __evlist__for_each_entry(list, evsel) \
278 list_for_each_entry(evsel, list, core.node)
279
280/**
281 * evlist__for_each_entry - iterate thru all the evsels
282 * @evlist: evlist instance to iterate
283 * @evsel: struct evsel iterator
284 */
285#define evlist__for_each_entry(evlist, evsel) \
286 __evlist__for_each_entry(&(evlist)->core.entries, evsel)
287
288/**
289 * __evlist__for_each_entry_continue - continue iteration thru all the evsels
290 * @list: list_head instance to iterate
291 * @evsel: struct evsel iterator
292 */
293#define __evlist__for_each_entry_continue(list, evsel) \
294 list_for_each_entry_continue(evsel, list, core.node)
295
296/**
297 * evlist__for_each_entry_continue - continue iteration thru all the evsels
298 * @evlist: evlist instance to iterate
299 * @evsel: struct evsel iterator
300 */
301#define evlist__for_each_entry_continue(evlist, evsel) \
302 __evlist__for_each_entry_continue(&(evlist)->core.entries, evsel)
303
304/**
305 * __evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order
306 * @list: list_head instance to iterate
307 * @evsel: struct evsel iterator
308 */
309#define __evlist__for_each_entry_reverse(list, evsel) \
310 list_for_each_entry_reverse(evsel, list, core.node)
311
312/**
313 * evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order
314 * @evlist: evlist instance to iterate
315 * @evsel: struct evsel iterator
316 */
317#define evlist__for_each_entry_reverse(evlist, evsel) \
318 __evlist__for_each_entry_reverse(&(evlist)->core.entries, evsel)
319
320/**
321 * __evlist__for_each_entry_safe - safely iterate thru all the evsels
322 * @list: list_head instance to iterate
323 * @tmp: struct evsel temp iterator
324 * @evsel: struct evsel iterator
325 */
326#define __evlist__for_each_entry_safe(list, tmp, evsel) \
327 list_for_each_entry_safe(evsel, tmp, list, core.node)
328
329/**
330 * evlist__for_each_entry_safe - safely iterate thru all the evsels
331 * @evlist: evlist instance to iterate
332 * @evsel: struct evsel iterator
333 * @tmp: struct evsel temp iterator
334 */
335#define evlist__for_each_entry_safe(evlist, tmp, evsel) \
336 __evlist__for_each_entry_safe(&(evlist)->core.entries, tmp, evsel)
337
338#define evlist__for_each_cpu(evlist, index, cpu) \
339 evlist__cpu_iter_start(evlist); \
340 perf_cpu_map__for_each_cpu (cpu, index, (evlist)->core.all_cpus)
341
342struct evsel *perf_evlist__get_tracking_event(struct evlist *evlist);
343void perf_evlist__set_tracking_event(struct evlist *evlist,
344 struct evsel *tracking_evsel);
345
346void evlist__cpu_iter_start(struct evlist *evlist);
347bool evsel__cpu_iter_skip(struct evsel *ev, int cpu);
348bool evsel__cpu_iter_skip_no_inc(struct evsel *ev, int cpu);
349
350struct evsel *
351perf_evlist__find_evsel_by_str(struct evlist *evlist, const char *str);
352
353struct evsel *perf_evlist__event2evsel(struct evlist *evlist,
354 union perf_event *event);
355
356bool perf_evlist__exclude_kernel(struct evlist *evlist);
357
358void perf_evlist__force_leader(struct evlist *evlist);
359
360struct evsel *perf_evlist__reset_weak_group(struct evlist *evlist,
361 struct evsel *evsel,
362 bool close);
363#define EVLIST_CTL_CMD_ENABLE_TAG "enable"
364#define EVLIST_CTL_CMD_DISABLE_TAG "disable"
365#define EVLIST_CTL_CMD_ACK_TAG "ack\n"
366
367#define EVLIST_CTL_CMD_MAX_LEN 64
368
369enum evlist_ctl_cmd {
370 EVLIST_CTL_CMD_UNSUPPORTED = 0,
371 EVLIST_CTL_CMD_ENABLE,
372 EVLIST_CTL_CMD_DISABLE,
373 EVLIST_CTL_CMD_ACK
374};
375
376int evlist__initialize_ctlfd(struct evlist *evlist, int ctl_fd, int ctl_fd_ack);
377int evlist__finalize_ctlfd(struct evlist *evlist);
378bool evlist__ctlfd_initialized(struct evlist *evlist);
379int evlist__ctlfd_process(struct evlist *evlist, enum evlist_ctl_cmd *cmd);
380
381#define EVLIST_ENABLED_MSG "Events enabled\n"
382#define EVLIST_DISABLED_MSG "Events disabled\n"
383
384#endif /* __PERF_EVLIST_H */