1
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
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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 bool enabled;
54 int id_pos;
55 int is_pos;
56 u64 combined_sample_type;
57 enum bkw_mmap_state bkw_mmap_state;
58 struct {
59 int cork_fd;
60 pid_t pid;
61 } workload;
62 struct mmap *mmap;
63 struct mmap *overwrite_mmap;
64 struct evsel *selected;
65 struct events_stats stats;
66 struct perf_env *env;
67 const char *hybrid_pmu_name;
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;
79 int ack;
80 int pos;
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 *evlist__new_default(void);
91struct evlist *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 arch_evlist__add_default_attrs(struct evlist *evlist);
114struct evsel *arch_evlist__leader(struct list_head *list);
115
116int evlist__add_dummy(struct evlist *evlist);
117
118int evlist__add_sb_event(struct evlist *evlist, struct perf_event_attr *attr,
119 evsel__sb_cb_t cb, void *data);
120void evlist__set_cb(struct evlist *evlist, evsel__sb_cb_t cb, void *data);
121int evlist__start_sb_thread(struct evlist *evlist, struct target *target);
122void 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
133int evlist__set_tp_filter(struct evlist *evlist, const char *filter);
134int evlist__set_tp_filter_pid(struct evlist *evlist, pid_t pid);
135int evlist__set_tp_filter_pids(struct evlist *evlist, size_t npids, pid_t *pids);
136
137int evlist__append_tp_filter(struct evlist *evlist, const char *filter);
138
139int evlist__append_tp_filter_pid(struct evlist *evlist, pid_t pid);
140int evlist__append_tp_filter_pids(struct evlist *evlist, size_t npids, pid_t *pids);
141
142struct evsel *evlist__find_tracepoint_by_id(struct evlist *evlist, int id);
143struct evsel *evlist__find_tracepoint_by_name(struct evlist *evlist, const char *name);
144
145int evlist__add_pollfd(struct evlist *evlist, int fd);
146int evlist__filter_pollfd(struct evlist *evlist, short revents_and_mask);
147
148#ifdef HAVE_EVENTFD_SUPPORT
149int evlist__add_wakeup_eventfd(struct evlist *evlist, int fd);
150#endif
151
152int evlist__poll(struct evlist *evlist, int timeout);
153
154struct evsel *evlist__id2evsel(struct evlist *evlist, u64 id);
155struct evsel *evlist__id2evsel_strict(struct evlist *evlist, u64 id);
156
157struct perf_sample_id *evlist__id2sid(struct evlist *evlist, u64 id);
158
159void evlist__toggle_bkw_mmap(struct evlist *evlist, enum bkw_mmap_state state);
160
161void evlist__mmap_consume(struct evlist *evlist, int idx);
162
163int evlist__open(struct evlist *evlist);
164void evlist__close(struct evlist *evlist);
165
166struct callchain_param;
167
168void evlist__set_id_pos(struct evlist *evlist);
169void evlist__config(struct evlist *evlist, struct record_opts *opts, struct callchain_param *callchain);
170int record_opts__config(struct record_opts *opts);
171
172int evlist__prepare_workload(struct evlist *evlist, struct target *target,
173 const char *argv[], bool pipe_output,
174 void (*exec_error)(int signo, siginfo_t *info, void *ucontext));
175int evlist__start_workload(struct evlist *evlist);
176
177struct option;
178
179int __evlist__parse_mmap_pages(unsigned int *mmap_pages, const char *str);
180int evlist__parse_mmap_pages(const struct option *opt, const char *str, int unset);
181
182unsigned long perf_event_mlock_kb_in_pages(void);
183
184int evlist__mmap_ex(struct evlist *evlist, unsigned int pages,
185 unsigned int auxtrace_pages,
186 bool auxtrace_overwrite, int nr_cblocks,
187 int affinity, int flush, int comp_level);
188int evlist__mmap(struct evlist *evlist, unsigned int pages);
189void evlist__munmap(struct evlist *evlist);
190
191size_t evlist__mmap_size(unsigned long pages);
192
193void evlist__disable(struct evlist *evlist);
194void evlist__enable(struct evlist *evlist);
195void evlist__toggle_enable(struct evlist *evlist);
196void evlist__disable_evsel(struct evlist *evlist, char *evsel_name);
197void evlist__enable_evsel(struct evlist *evlist, char *evsel_name);
198
199int evlist__enable_event_idx(struct evlist *evlist, struct evsel *evsel, int idx);
200
201void evlist__set_selected(struct evlist *evlist, struct evsel *evsel);
202
203int evlist__create_maps(struct evlist *evlist, struct target *target);
204int evlist__apply_filters(struct evlist *evlist, struct evsel **err_evsel);
205
206void evlist__set_leader(struct evlist *evlist);
207
208u64 __evlist__combined_sample_type(struct evlist *evlist);
209u64 evlist__combined_sample_type(struct evlist *evlist);
210u64 evlist__combined_branch_type(struct evlist *evlist);
211bool evlist__sample_id_all(struct evlist *evlist);
212u16 evlist__id_hdr_size(struct evlist *evlist);
213
214int evlist__parse_sample(struct evlist *evlist, union perf_event *event, struct perf_sample *sample);
215int evlist__parse_sample_timestamp(struct evlist *evlist, union perf_event *event, u64 *timestamp);
216
217bool evlist__valid_sample_type(struct evlist *evlist);
218bool evlist__valid_sample_id_all(struct evlist *evlist);
219bool evlist__valid_read_format(struct evlist *evlist);
220
221void evlist__splice_list_tail(struct evlist *evlist, struct list_head *list);
222
223static inline bool evlist__empty(struct evlist *evlist)
224{
225 return list_empty(&evlist->core.entries);
226}
227
228static inline struct evsel *evlist__first(struct evlist *evlist)
229{
230 struct perf_evsel *evsel = perf_evlist__first(&evlist->core);
231
232 return container_of(evsel, struct evsel, core);
233}
234
235static inline struct evsel *evlist__last(struct evlist *evlist)
236{
237 struct perf_evsel *evsel = perf_evlist__last(&evlist->core);
238
239 return container_of(evsel, struct evsel, core);
240}
241
242int evlist__strerror_open(struct evlist *evlist, int err, char *buf, size_t size);
243int evlist__strerror_mmap(struct evlist *evlist, int err, char *buf, size_t size);
244
245bool evlist__can_select_event(struct evlist *evlist, const char *str);
246void evlist__to_front(struct evlist *evlist, struct evsel *move_evsel);
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252
253#define __evlist__for_each_entry(list, evsel) \
254 list_for_each_entry(evsel, list, core.node)
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261#define evlist__for_each_entry(evlist, evsel) \
262 __evlist__for_each_entry(&(evlist)->core.entries, evsel)
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269#define __evlist__for_each_entry_continue(list, evsel) \
270 list_for_each_entry_continue(evsel, list, core.node)
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277#define evlist__for_each_entry_continue(evlist, evsel) \
278 __evlist__for_each_entry_continue(&(evlist)->core.entries, evsel)
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284
285#define __evlist__for_each_entry_from(list, evsel) \
286 list_for_each_entry_from(evsel, list, core.node)
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293#define evlist__for_each_entry_from(evlist, evsel) \
294 __evlist__for_each_entry_from(&(evlist)->core.entries, evsel)
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300
301#define __evlist__for_each_entry_reverse(list, evsel) \
302 list_for_each_entry_reverse(evsel, list, core.node)
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309#define evlist__for_each_entry_reverse(evlist, evsel) \
310 __evlist__for_each_entry_reverse(&(evlist)->core.entries, evsel)
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317
318#define __evlist__for_each_entry_safe(list, tmp, evsel) \
319 list_for_each_entry_safe(evsel, tmp, list, core.node)
320
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326
327#define evlist__for_each_entry_safe(evlist, tmp, evsel) \
328 __evlist__for_each_entry_safe(&(evlist)->core.entries, tmp, evsel)
329
330
331struct evlist_cpu_iterator {
332
333 struct evlist *container;
334
335 struct evsel *evsel;
336
337 int cpu_map_idx;
338
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342
343 int evlist_cpu_map_idx;
344
345 int evlist_cpu_map_nr;
346
347 struct perf_cpu cpu;
348
349 struct affinity *affinity;
350};
351
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361
362#define evlist__for_each_cpu(evlist_cpu_itr, evlist, affinity) \
363 for ((evlist_cpu_itr) = evlist__cpu_begin(evlist, affinity); \
364 !evlist_cpu_iterator__end(&evlist_cpu_itr); \
365 evlist_cpu_iterator__next(&evlist_cpu_itr))
366
367
368struct evlist_cpu_iterator evlist__cpu_begin(struct evlist *evlist, struct affinity *affinity);
369
370void evlist_cpu_iterator__next(struct evlist_cpu_iterator *evlist_cpu_itr);
371
372bool evlist_cpu_iterator__end(const struct evlist_cpu_iterator *evlist_cpu_itr);
373
374struct evsel *evlist__get_tracking_event(struct evlist *evlist);
375void evlist__set_tracking_event(struct evlist *evlist, struct evsel *tracking_evsel);
376
377struct evsel *evlist__find_evsel_by_str(struct evlist *evlist, const char *str);
378
379struct evsel *evlist__event2evsel(struct evlist *evlist, union perf_event *event);
380
381bool evlist__exclude_kernel(struct evlist *evlist);
382
383void evlist__force_leader(struct evlist *evlist);
384
385struct evsel *evlist__reset_weak_group(struct evlist *evlist, struct evsel *evsel, bool close);
386
387#define EVLIST_CTL_CMD_ENABLE_TAG "enable"
388#define EVLIST_CTL_CMD_DISABLE_TAG "disable"
389#define EVLIST_CTL_CMD_ACK_TAG "ack\n"
390#define EVLIST_CTL_CMD_SNAPSHOT_TAG "snapshot"
391#define EVLIST_CTL_CMD_EVLIST_TAG "evlist"
392#define EVLIST_CTL_CMD_STOP_TAG "stop"
393#define EVLIST_CTL_CMD_PING_TAG "ping"
394
395#define EVLIST_CTL_CMD_MAX_LEN 64
396
397enum evlist_ctl_cmd {
398 EVLIST_CTL_CMD_UNSUPPORTED = 0,
399 EVLIST_CTL_CMD_ENABLE,
400 EVLIST_CTL_CMD_DISABLE,
401 EVLIST_CTL_CMD_ACK,
402 EVLIST_CTL_CMD_SNAPSHOT,
403 EVLIST_CTL_CMD_EVLIST,
404 EVLIST_CTL_CMD_STOP,
405 EVLIST_CTL_CMD_PING,
406};
407
408int evlist__parse_control(const char *str, int *ctl_fd, int *ctl_fd_ack, bool *ctl_fd_close);
409void evlist__close_control(int ctl_fd, int ctl_fd_ack, bool *ctl_fd_close);
410int evlist__initialize_ctlfd(struct evlist *evlist, int ctl_fd, int ctl_fd_ack);
411int evlist__finalize_ctlfd(struct evlist *evlist);
412bool evlist__ctlfd_initialized(struct evlist *evlist);
413int evlist__ctlfd_update(struct evlist *evlist, struct pollfd *update);
414int evlist__ctlfd_process(struct evlist *evlist, enum evlist_ctl_cmd *cmd);
415int evlist__ctlfd_ack(struct evlist *evlist);
416
417#define EVLIST_ENABLED_MSG "Events enabled\n"
418#define EVLIST_DISABLED_MSG "Events disabled\n"
419
420struct evsel *evlist__find_evsel(struct evlist *evlist, int idx);
421
422int evlist__scnprintf_evsels(struct evlist *evlist, size_t size, char *bf);
423void evlist__check_mem_load_aux(struct evlist *evlist);
424#endif
425