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
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25
26
27
28struct perf_mmap {
29 void *base;
30 int mask;
31 int fd;
32 atomic_t refcnt;
33 u64 prev;
34 struct auxtrace_mmap auxtrace_mmap;
35 char event_copy[PERF_SAMPLE_MAX_SIZE] __attribute__((aligned(8)));
36};
37
38static inline size_t
39perf_mmap__mmap_len(struct perf_mmap *map)
40{
41 return map->mask + 1 + page_size;
42}
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64
65enum bkw_mmap_state {
66 BKW_MMAP_NOTREADY,
67 BKW_MMAP_RUNNING,
68 BKW_MMAP_DATA_PENDING,
69 BKW_MMAP_EMPTY,
70};
71
72struct perf_evlist {
73 struct list_head entries;
74 struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
75 int nr_entries;
76 int nr_groups;
77 int nr_mmaps;
78 bool overwrite;
79 bool enabled;
80 bool has_user_cpus;
81 size_t mmap_len;
82 int id_pos;
83 int is_pos;
84 u64 combined_sample_type;
85 enum bkw_mmap_state bkw_mmap_state;
86 struct {
87 int cork_fd;
88 pid_t pid;
89 } workload;
90 struct fdarray pollfd;
91 struct perf_mmap *mmap;
92 struct perf_mmap *backward_mmap;
93 struct thread_map *threads;
94 struct cpu_map *cpus;
95 struct perf_evsel *selected;
96 struct events_stats stats;
97 struct perf_env *env;
98};
99
100struct perf_evsel_str_handler {
101 const char *name;
102 void *handler;
103};
104
105struct perf_evlist *perf_evlist__new(void);
106struct perf_evlist *perf_evlist__new_default(void);
107struct perf_evlist *perf_evlist__new_dummy(void);
108void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus,
109 struct thread_map *threads);
110void perf_evlist__exit(struct perf_evlist *evlist);
111void perf_evlist__delete(struct perf_evlist *evlist);
112
113void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry);
114void perf_evlist__remove(struct perf_evlist *evlist, struct perf_evsel *evsel);
115int perf_evlist__add_default(struct perf_evlist *evlist);
116int __perf_evlist__add_default_attrs(struct perf_evlist *evlist,
117 struct perf_event_attr *attrs, size_t nr_attrs);
118
119#define perf_evlist__add_default_attrs(evlist, array) \
120 __perf_evlist__add_default_attrs(evlist, array, ARRAY_SIZE(array))
121
122int perf_evlist__add_dummy(struct perf_evlist *evlist);
123
124int perf_evlist__add_newtp(struct perf_evlist *evlist,
125 const char *sys, const char *name, void *handler);
126
127void __perf_evlist__set_sample_bit(struct perf_evlist *evlist,
128 enum perf_event_sample_format bit);
129void __perf_evlist__reset_sample_bit(struct perf_evlist *evlist,
130 enum perf_event_sample_format bit);
131
132#define perf_evlist__set_sample_bit(evlist, bit) \
133 __perf_evlist__set_sample_bit(evlist, PERF_SAMPLE_##bit)
134
135#define perf_evlist__reset_sample_bit(evlist, bit) \
136 __perf_evlist__reset_sample_bit(evlist, PERF_SAMPLE_##bit)
137
138int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter);
139int perf_evlist__set_filter_pid(struct perf_evlist *evlist, pid_t pid);
140int perf_evlist__set_filter_pids(struct perf_evlist *evlist, size_t npids, pid_t *pids);
141
142struct perf_evsel *
143perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id);
144
145struct perf_evsel *
146perf_evlist__find_tracepoint_by_name(struct perf_evlist *evlist,
147 const char *name);
148
149void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel,
150 int cpu, int thread, u64 id);
151int perf_evlist__id_add_fd(struct perf_evlist *evlist,
152 struct perf_evsel *evsel,
153 int cpu, int thread, int fd);
154
155int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd);
156int perf_evlist__alloc_pollfd(struct perf_evlist *evlist);
157int perf_evlist__filter_pollfd(struct perf_evlist *evlist, short revents_and_mask);
158
159int perf_evlist__poll(struct perf_evlist *evlist, int timeout);
160
161struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id);
162struct perf_evsel *perf_evlist__id2evsel_strict(struct perf_evlist *evlist,
163 u64 id);
164
165struct perf_sample_id *perf_evlist__id2sid(struct perf_evlist *evlist, u64 id);
166
167void perf_evlist__toggle_bkw_mmap(struct perf_evlist *evlist, enum bkw_mmap_state state);
168
169union perf_event *perf_mmap__read_forward(struct perf_mmap *map, bool check_messup);
170union perf_event *perf_mmap__read_backward(struct perf_mmap *map);
171
172void perf_mmap__read_catchup(struct perf_mmap *md);
173void perf_mmap__consume(struct perf_mmap *md, bool overwrite);
174
175union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx);
176
177union perf_event *perf_evlist__mmap_read_forward(struct perf_evlist *evlist,
178 int idx);
179union perf_event *perf_evlist__mmap_read_backward(struct perf_evlist *evlist,
180 int idx);
181void perf_evlist__mmap_read_catchup(struct perf_evlist *evlist, int idx);
182
183void perf_evlist__mmap_consume(struct perf_evlist *evlist, int idx);
184
185int perf_evlist__open(struct perf_evlist *evlist);
186void perf_evlist__close(struct perf_evlist *evlist);
187
188struct callchain_param;
189
190void perf_evlist__set_id_pos(struct perf_evlist *evlist);
191bool perf_can_sample_identifier(void);
192bool perf_can_record_switch_events(void);
193bool perf_can_record_cpu_wide(void);
194void perf_evlist__config(struct perf_evlist *evlist, struct record_opts *opts,
195 struct callchain_param *callchain);
196int record_opts__config(struct record_opts *opts);
197
198int perf_evlist__prepare_workload(struct perf_evlist *evlist,
199 struct target *target,
200 const char *argv[], bool pipe_output,
201 void (*exec_error)(int signo, siginfo_t *info,
202 void *ucontext));
203int perf_evlist__start_workload(struct perf_evlist *evlist);
204
205struct option;
206
207int __perf_evlist__parse_mmap_pages(unsigned int *mmap_pages, const char *str);
208int perf_evlist__parse_mmap_pages(const struct option *opt,
209 const char *str,
210 int unset);
211
212unsigned long perf_event_mlock_kb_in_pages(void);
213
214int perf_evlist__mmap_ex(struct perf_evlist *evlist, unsigned int pages,
215 bool overwrite, unsigned int auxtrace_pages,
216 bool auxtrace_overwrite);
217int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
218 bool overwrite);
219void perf_evlist__munmap(struct perf_evlist *evlist);
220
221void perf_evlist__disable(struct perf_evlist *evlist);
222void perf_evlist__enable(struct perf_evlist *evlist);
223void perf_evlist__toggle_enable(struct perf_evlist *evlist);
224
225int perf_evlist__enable_event_idx(struct perf_evlist *evlist,
226 struct perf_evsel *evsel, int idx);
227
228void perf_evlist__set_selected(struct perf_evlist *evlist,
229 struct perf_evsel *evsel);
230
231void perf_evlist__set_maps(struct perf_evlist *evlist, struct cpu_map *cpus,
232 struct thread_map *threads);
233int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target);
234int perf_evlist__apply_filters(struct perf_evlist *evlist, struct perf_evsel **err_evsel);
235
236void __perf_evlist__set_leader(struct list_head *list);
237void perf_evlist__set_leader(struct perf_evlist *evlist);
238
239u64 perf_evlist__read_format(struct perf_evlist *evlist);
240u64 __perf_evlist__combined_sample_type(struct perf_evlist *evlist);
241u64 perf_evlist__combined_sample_type(struct perf_evlist *evlist);
242u64 perf_evlist__combined_branch_type(struct perf_evlist *evlist);
243bool perf_evlist__sample_id_all(struct perf_evlist *evlist);
244u16 perf_evlist__id_hdr_size(struct perf_evlist *evlist);
245
246int perf_evlist__parse_sample(struct perf_evlist *evlist, union perf_event *event,
247 struct perf_sample *sample);
248
249bool perf_evlist__valid_sample_type(struct perf_evlist *evlist);
250bool perf_evlist__valid_sample_id_all(struct perf_evlist *evlist);
251bool perf_evlist__valid_read_format(struct perf_evlist *evlist);
252
253void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
254 struct list_head *list);
255
256static inline struct perf_evsel *perf_evlist__first(struct perf_evlist *evlist)
257{
258 return list_entry(evlist->entries.next, struct perf_evsel, node);
259}
260
261static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist)
262{
263 return list_entry(evlist->entries.prev, struct perf_evsel, node);
264}
265
266size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp);
267
268int perf_evlist__strerror_open(struct perf_evlist *evlist, int err, char *buf, size_t size);
269int perf_evlist__strerror_mmap(struct perf_evlist *evlist, int err, char *buf, size_t size);
270
271static inline u64 perf_mmap__read_head(struct perf_mmap *mm)
272{
273 struct perf_event_mmap_page *pc = mm->base;
274 u64 head = ACCESS_ONCE(pc->data_head);
275 rmb();
276 return head;
277}
278
279static inline void perf_mmap__write_tail(struct perf_mmap *md, u64 tail)
280{
281 struct perf_event_mmap_page *pc = md->base;
282
283
284
285
286 mb();
287 pc->data_tail = tail;
288}
289
290bool perf_evlist__can_select_event(struct perf_evlist *evlist, const char *str);
291void perf_evlist__to_front(struct perf_evlist *evlist,
292 struct perf_evsel *move_evsel);
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298
299#define __evlist__for_each_entry(list, evsel) \
300 list_for_each_entry(evsel, list, node)
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306
307#define evlist__for_each_entry(evlist, evsel) \
308 __evlist__for_each_entry(&(evlist)->entries, evsel)
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314
315#define __evlist__for_each_entry_continue(list, evsel) \
316 list_for_each_entry_continue(evsel, list, node)
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322
323#define evlist__for_each_entry_continue(evlist, evsel) \
324 __evlist__for_each_entry_continue(&(evlist)->entries, evsel)
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330
331#define __evlist__for_each_entry_reverse(list, evsel) \
332 list_for_each_entry_reverse(evsel, list, node)
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338
339#define evlist__for_each_entry_reverse(evlist, evsel) \
340 __evlist__for_each_entry_reverse(&(evlist)->entries, evsel)
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347
348#define __evlist__for_each_entry_safe(list, tmp, evsel) \
349 list_for_each_entry_safe(evsel, tmp, list, node)
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356
357#define evlist__for_each_entry_safe(evlist, tmp, evsel) \
358 __evlist__for_each_entry_safe(&(evlist)->entries, tmp, evsel)
359
360void perf_evlist__set_tracking_event(struct perf_evlist *evlist,
361 struct perf_evsel *tracking_evsel);
362
363void perf_event_attr__set_max_precise_ip(struct perf_event_attr *attr);
364
365struct perf_evsel *
366perf_evlist__find_evsel_by_str(struct perf_evlist *evlist, const char *str);
367
368struct perf_evsel *perf_evlist__event2evsel(struct perf_evlist *evlist,
369 union perf_event *event);
370#endif
371