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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#ifndef __PERF_EVLIST_H
2#define __PERF_EVLIST_H 1
3
4#include <linux/list.h>
5#include "../perf.h"
6#include "event.h"
7
8struct pollfd;
9struct thread_map;
10struct cpu_map;
11
12#define PERF_EVLIST__HLIST_BITS 8
13#define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS)
14
15struct perf_evlist {
16 struct list_head entries;
17 struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
18 int nr_entries;
19 int nr_fds;
20 int nr_mmaps;
21 int mmap_len;
22 bool overwrite;
23 union perf_event event_copy;
24 struct perf_mmap *mmap;
25 struct pollfd *pollfd;
26 struct thread_map *threads;
27 struct cpu_map *cpus;
28};
29
30struct perf_evsel;
31
32struct perf_evlist *perf_evlist__new(struct cpu_map *cpus,
33 struct thread_map *threads);
34void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus,
35 struct thread_map *threads);
36void perf_evlist__exit(struct perf_evlist *evlist);
37void perf_evlist__delete(struct perf_evlist *evlist);
38
39void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry);
40int perf_evlist__add_default(struct perf_evlist *evlist);
41
42void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel,
43 int cpu, int thread, u64 id);
44
45int perf_evlist__alloc_pollfd(struct perf_evlist *evlist);
46void perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd);
47
48struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id);
49
50union perf_event *perf_evlist__mmap_read(struct perf_evlist *self, int idx);
51
52int perf_evlist__alloc_mmap(struct perf_evlist *evlist);
53int perf_evlist__mmap(struct perf_evlist *evlist, int pages, bool overwrite);
54void perf_evlist__munmap(struct perf_evlist *evlist);
55
56void perf_evlist__disable(struct perf_evlist *evlist);
57void perf_evlist__enable(struct perf_evlist *evlist);
58
59static inline void perf_evlist__set_maps(struct perf_evlist *evlist,
60 struct cpu_map *cpus,
61 struct thread_map *threads)
62{
63 evlist->cpus = cpus;
64 evlist->threads = threads;
65}
66
67int perf_evlist__create_maps(struct perf_evlist *evlist, pid_t target_pid,
68 pid_t target_tid, const char *cpu_list);
69void perf_evlist__delete_maps(struct perf_evlist *evlist);
70int perf_evlist__set_filters(struct perf_evlist *evlist);
71
72u64 perf_evlist__sample_type(const struct perf_evlist *evlist);
73bool perf_evlist__sample_id_all(const const struct perf_evlist *evlist);
74
75bool perf_evlist__valid_sample_type(const struct perf_evlist *evlist);
76bool perf_evlist__valid_sample_id_all(const struct perf_evlist *evlist);
77#endif /* __PERF_EVLIST_H */