tools/perf/util/evlist.h - third_party/kernel - Git at Google

 /* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_EVLIST_H
 #define __PERF_EVLIST_H 1

 #include <linux/compiler.h>
 #include <linux/kernel.h>
 #include <linux/refcount.h>
 #include <linux/list.h>
 #include <api/fd/array.h>
 #include <internal/evlist.h>
 #include <internal/evsel.h>
 #include "events_stats.h"
 #include "evsel.h"
 #include <pthread.h>
 #include <signal.h>
 #include <unistd.h>

 struct pollfd;
 struct thread_map;
 struct perf_cpu_map;
 struct record_opts;

 /*
  * State machine of bkw_mmap_state:
  *
  *                     .________________(forbid)_____________.
  *                     |                                     V
  * NOTREADY --(0)--> RUNNING --(1)--> DATA_PENDING --(2)--> EMPTY
  *                     ^  ^              |   ^               |
  *                     |  |__(forbid)____/   |___(forbid)___/|
  *                     |                                     |
  *                      \_________________(3)_______________/
  *
  * NOTREADY     : Backward ring buffers are not ready
  * RUNNING      : Backward ring buffers are recording
  * DATA_PENDING : We are required to collect data from backward ring buffers
  * EMPTY        : We have collected data from backward ring buffers.
  *
  * (0): Setup backward ring buffer
  * (1): Pause ring buffers for reading
  * (2): Read from ring buffers
  * (3): Resume ring buffers for recording
  */
 enum bkw_mmap_state {
 	BKW_MMAP_NOTREADY,
 	BKW_MMAP_RUNNING,
 	BKW_MMAP_DATA_PENDING,
 	BKW_MMAP_EMPTY,
 };

 struct evlist {
 	struct perf_evlist core;
 	int		 nr_groups;
 	bool		 enabled;
 	int		 id_pos;
 	int		 is_pos;
 	u64		 combined_sample_type;
 	enum bkw_mmap_state bkw_mmap_state;
 	struct {
 		int	cork_fd;
 		pid_t	pid;
 	} workload;
 	struct mmap *mmap;
 	struct mmap *overwrite_mmap;
 	struct evsel *selected;
 	struct events_stats stats;
 	struct perf_env	*env;
 	void (*trace_event_sample_raw)(struct evlist *evlist,
 				       union perf_event *event,
 				       struct perf_sample *sample);
 	u64		first_sample_time;
 	u64		last_sample_time;
 	struct {
 		pthread_t		th;
 		volatile int		done;
 	} thread;
 };

 struct evsel_str_handler {
 	const char *name;
 	void	   *handler;
 };

 struct evlist *evlist__new(void);
 struct evlist *perf_evlist__new_default(void);
 struct evlist *perf_evlist__new_dummy(void);
 void evlist__init(struct evlist *evlist, struct perf_cpu_map *cpus,
 		  struct perf_thread_map *threads);
 void evlist__exit(struct evlist *evlist);
 void evlist__delete(struct evlist *evlist);

 void evlist__add(struct evlist *evlist, struct evsel *entry);
 void evlist__remove(struct evlist *evlist, struct evsel *evsel);

 int __perf_evlist__add_default(struct evlist *evlist, bool precise);

 static inline int perf_evlist__add_default(struct evlist *evlist)
 {
 	return __perf_evlist__add_default(evlist, true);
 }

 int __perf_evlist__add_default_attrs(struct evlist *evlist,
 				     struct perf_event_attr *attrs, size_t nr_attrs);

 #define perf_evlist__add_default_attrs(evlist, array) \
 	__perf_evlist__add_default_attrs(evlist, array, ARRAY_SIZE(array))

 int perf_evlist__add_dummy(struct evlist *evlist);

 int perf_evlist__add_sb_event(struct evlist **evlist,
 			      struct perf_event_attr *attr,
 			      perf_evsel__sb_cb_t cb,
 			      void *data);
 int perf_evlist__start_sb_thread(struct evlist *evlist,
 				 struct target *target);
 void perf_evlist__stop_sb_thread(struct evlist *evlist);

 int perf_evlist__add_newtp(struct evlist *evlist,
 			   const char *sys, const char *name, void *handler);

 void __perf_evlist__set_sample_bit(struct evlist *evlist,
 				   enum perf_event_sample_format bit);
 void __perf_evlist__reset_sample_bit(struct evlist *evlist,
 				     enum perf_event_sample_format bit);

 #define perf_evlist__set_sample_bit(evlist, bit) \
 	__perf_evlist__set_sample_bit(evlist, PERF_SAMPLE_##bit)

 #define perf_evlist__reset_sample_bit(evlist, bit) \
 	__perf_evlist__reset_sample_bit(evlist, PERF_SAMPLE_##bit)

 int perf_evlist__set_tp_filter(struct evlist *evlist, const char *filter);
 int perf_evlist__set_tp_filter_pid(struct evlist *evlist, pid_t pid);
 int perf_evlist__set_tp_filter_pids(struct evlist *evlist, size_t npids, pid_t *pids);

 struct evsel *
 perf_evlist__find_tracepoint_by_id(struct evlist *evlist, int id);

 struct evsel *
 perf_evlist__find_tracepoint_by_name(struct evlist *evlist,
 				     const char *name);

 int evlist__add_pollfd(struct evlist *evlist, int fd);
 int evlist__filter_pollfd(struct evlist *evlist, short revents_and_mask);

 int evlist__poll(struct evlist *evlist, int timeout);

 struct evsel *perf_evlist__id2evsel(struct evlist *evlist, u64 id);
 struct evsel *perf_evlist__id2evsel_strict(struct evlist *evlist,
 						u64 id);

 struct perf_sample_id *perf_evlist__id2sid(struct evlist *evlist, u64 id);

 void perf_evlist__toggle_bkw_mmap(struct evlist *evlist, enum bkw_mmap_state state);

 void evlist__mmap_consume(struct evlist *evlist, int idx);

 int evlist__open(struct evlist *evlist);
 void evlist__close(struct evlist *evlist);

 struct callchain_param;

 void perf_evlist__set_id_pos(struct evlist *evlist);
 bool perf_can_sample_identifier(void);
 bool perf_can_record_switch_events(void);
 bool perf_can_record_cpu_wide(void);
 void perf_evlist__config(struct evlist *evlist, struct record_opts *opts,
 			 struct callchain_param *callchain);
 int record_opts__config(struct record_opts *opts);

 int perf_evlist__prepare_workload(struct evlist *evlist,
 				  struct target *target,
 				  const char *argv[], bool pipe_output,
 				  void (*exec_error)(int signo, siginfo_t *info,
 						     void *ucontext));
 int perf_evlist__start_workload(struct evlist *evlist);

 struct option;

 int __perf_evlist__parse_mmap_pages(unsigned int *mmap_pages, const char *str);
 int perf_evlist__parse_mmap_pages(const struct option *opt,
 				  const char *str,
 				  int unset);

 unsigned long perf_event_mlock_kb_in_pages(void);

 int evlist__mmap_ex(struct evlist *evlist, unsigned int pages,
 			 unsigned int auxtrace_pages,
 			 bool auxtrace_overwrite, int nr_cblocks,
 			 int affinity, int flush, int comp_level);
 int evlist__mmap(struct evlist *evlist, unsigned int pages);
 void evlist__munmap(struct evlist *evlist);

 size_t evlist__mmap_size(unsigned long pages);

 void evlist__disable(struct evlist *evlist);
 void evlist__enable(struct evlist *evlist);
 void perf_evlist__toggle_enable(struct evlist *evlist);

 int perf_evlist__enable_event_idx(struct evlist *evlist,
 				  struct evsel *evsel, int idx);

 void perf_evlist__set_selected(struct evlist *evlist,
 			       struct evsel *evsel);

 int perf_evlist__create_maps(struct evlist *evlist, struct target *target);
 int perf_evlist__apply_filters(struct evlist *evlist, struct evsel **err_evsel);

 void __perf_evlist__set_leader(struct list_head *list);
 void perf_evlist__set_leader(struct evlist *evlist);

 u64 __perf_evlist__combined_sample_type(struct evlist *evlist);
 u64 perf_evlist__combined_sample_type(struct evlist *evlist);
 u64 perf_evlist__combined_branch_type(struct evlist *evlist);
 bool perf_evlist__sample_id_all(struct evlist *evlist);
 u16 perf_evlist__id_hdr_size(struct evlist *evlist);

 int perf_evlist__parse_sample(struct evlist *evlist, union perf_event *event,
 			      struct perf_sample *sample);

 int perf_evlist__parse_sample_timestamp(struct evlist *evlist,
 					union perf_event *event,
 					u64 *timestamp);

 bool perf_evlist__valid_sample_type(struct evlist *evlist);
 bool perf_evlist__valid_sample_id_all(struct evlist *evlist);
 bool perf_evlist__valid_read_format(struct evlist *evlist);

 void perf_evlist__splice_list_tail(struct evlist *evlist,
 				   struct list_head *list);

 static inline bool perf_evlist__empty(struct evlist *evlist)
 {
 	return list_empty(&evlist->core.entries);
 }

 static inline struct evsel *evlist__first(struct evlist *evlist)
 {
 	struct perf_evsel *evsel = perf_evlist__first(&evlist->core);

 	return container_of(evsel, struct evsel, core);
 }

 static inline struct evsel *evlist__last(struct evlist *evlist)
 {
 	struct perf_evsel *evsel = perf_evlist__last(&evlist->core);

 	return container_of(evsel, struct evsel, core);
 }

 int perf_evlist__strerror_open(struct evlist *evlist, int err, char *buf, size_t size);
 int perf_evlist__strerror_mmap(struct evlist *evlist, int err, char *buf, size_t size);

 bool perf_evlist__can_select_event(struct evlist *evlist, const char *str);
 void perf_evlist__to_front(struct evlist *evlist,
 			   struct evsel *move_evsel);

 /**
  * __evlist__for_each_entry - iterate thru all the evsels
  * @list: list_head instance to iterate
  * @evsel: struct evsel iterator
  */
 #define __evlist__for_each_entry(list, evsel) \
         list_for_each_entry(evsel, list, core.node)

 /**
  * evlist__for_each_entry - iterate thru all the evsels
  * @evlist: evlist instance to iterate
  * @evsel: struct evsel iterator
  */
 #define evlist__for_each_entry(evlist, evsel) \
 	__evlist__for_each_entry(&(evlist)->core.entries, evsel)

 /**
  * __evlist__for_each_entry_continue - continue iteration thru all the evsels
  * @list: list_head instance to iterate
  * @evsel: struct evsel iterator
  */
 #define __evlist__for_each_entry_continue(list, evsel) \
         list_for_each_entry_continue(evsel, list, core.node)

 /**
  * evlist__for_each_entry_continue - continue iteration thru all the evsels
  * @evlist: evlist instance to iterate
  * @evsel: struct evsel iterator
  */
 #define evlist__for_each_entry_continue(evlist, evsel) \
 	__evlist__for_each_entry_continue(&(evlist)->core.entries, evsel)

 /**
  * __evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order
  * @list: list_head instance to iterate
  * @evsel: struct evsel iterator
  */
 #define __evlist__for_each_entry_reverse(list, evsel) \
         list_for_each_entry_reverse(evsel, list, core.node)

 /**
  * evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order
  * @evlist: evlist instance to iterate
  * @evsel: struct evsel iterator
  */
 #define evlist__for_each_entry_reverse(evlist, evsel) \
 	__evlist__for_each_entry_reverse(&(evlist)->core.entries, evsel)

 /**
  * __evlist__for_each_entry_safe - safely iterate thru all the evsels
  * @list: list_head instance to iterate
  * @tmp: struct evsel temp iterator
  * @evsel: struct evsel iterator
  */
 #define __evlist__for_each_entry_safe(list, tmp, evsel) \
         list_for_each_entry_safe(evsel, tmp, list, core.node)

 /**
  * evlist__for_each_entry_safe - safely iterate thru all the evsels
  * @evlist: evlist instance to iterate
  * @evsel: struct evsel iterator
  * @tmp: struct evsel temp iterator
  */
 #define evlist__for_each_entry_safe(evlist, tmp, evsel) \
 	__evlist__for_each_entry_safe(&(evlist)->core.entries, tmp, evsel)

 void perf_evlist__set_tracking_event(struct evlist *evlist,
 				     struct evsel *tracking_evsel);

 struct evsel *
 perf_evlist__find_evsel_by_str(struct evlist *evlist, const char *str);

 struct evsel *perf_evlist__event2evsel(struct evlist *evlist,
 					    union perf_event *event);

 bool perf_evlist__exclude_kernel(struct evlist *evlist);

 void perf_evlist__force_leader(struct evlist *evlist);

 struct evsel *perf_evlist__reset_weak_group(struct evlist *evlist,
 						 struct evsel *evsel);
 #endif /* __PERF_EVLIST_H */
	/* SPDX-License-Identifier: GPL-2.0 */
	#ifndef __PERF_EVLIST_H
	#define __PERF_EVLIST_H 1

	#include <linux/compiler.h>
	#include <linux/kernel.h>
	#include <linux/refcount.h>
	#include <linux/list.h>
	#include <api/fd/array.h>
	#include <internal/evlist.h>
	#include <internal/evsel.h>
	#include "events_stats.h"
	#include "evsel.h"
	#include <pthread.h>
	#include <signal.h>
	#include <unistd.h>

	struct pollfd;
	struct thread_map;
	struct perf_cpu_map;
	struct record_opts;

	/*
	* State machine of bkw_mmap_state:
	*
	* .________________(forbid)_____________.
	* \| V
	* NOTREADY --(0)--> RUNNING --(1)--> DATA_PENDING --(2)--> EMPTY
	* ^ ^ \| ^ \|
	* \| \|__(forbid)____/ \|___(forbid)___/\|
	* \| \|
	* \_________________(3)_______________/
	*
	* NOTREADY : Backward ring buffers are not ready
	* RUNNING : Backward ring buffers are recording
	* DATA_PENDING : We are required to collect data from backward ring buffers
	* EMPTY : We have collected data from backward ring buffers.
	*
	* (0): Setup backward ring buffer
	* (1): Pause ring buffers for reading
	* (2): Read from ring buffers
	* (3): Resume ring buffers for recording
	*/
	enum bkw_mmap_state {
	BKW_MMAP_NOTREADY,
	BKW_MMAP_RUNNING,
	BKW_MMAP_DATA_PENDING,
	BKW_MMAP_EMPTY,
	};

	struct evlist {
	struct perf_evlist core;
	int nr_groups;
	bool enabled;
	int id_pos;
	int is_pos;
	u64 combined_sample_type;
	enum bkw_mmap_state bkw_mmap_state;
	struct {
	int cork_fd;
	pid_t pid;
	} workload;
	struct mmap *mmap;
	struct mmap *overwrite_mmap;
	struct evsel *selected;
	struct events_stats stats;
	struct perf_env *env;
	void (trace_event_sample_raw)(struct evlist evlist,
	union perf_event *event,
	struct perf_sample *sample);
	u64 first_sample_time;
	u64 last_sample_time;
	struct {
	pthread_t th;
	volatile int done;
	} thread;
	};

	struct evsel_str_handler {
	const char *name;
	void *handler;
	};

	struct evlist *evlist__new(void);
	struct evlist *perf_evlist__new_default(void);
	struct evlist *perf_evlist__new_dummy(void);
	void evlist__init(struct evlist evlist, struct perf_cpu_map cpus,
	struct perf_thread_map *threads);
	void evlist__exit(struct evlist *evlist);
	void evlist__delete(struct evlist *evlist);

	void evlist__add(struct evlist evlist, struct evsel entry);
	void evlist__remove(struct evlist evlist, struct evsel evsel);

	int __perf_evlist__add_default(struct evlist *evlist, bool precise);

	static inline int perf_evlist__add_default(struct evlist *evlist)
	{
	return __perf_evlist__add_default(evlist, true);
	}

	int __perf_evlist__add_default_attrs(struct evlist *evlist,
	struct perf_event_attr *attrs, size_t nr_attrs);

	#define perf_evlist__add_default_attrs(evlist, array) \
	__perf_evlist__add_default_attrs(evlist, array, ARRAY_SIZE(array))

	int perf_evlist__add_dummy(struct evlist *evlist);

	int perf_evlist__add_sb_event(struct evlist **evlist,
	struct perf_event_attr *attr,
	perf_evsel__sb_cb_t cb,
	void *data);
	int perf_evlist__start_sb_thread(struct evlist *evlist,
	struct target *target);
	void perf_evlist__stop_sb_thread(struct evlist *evlist);

	int perf_evlist__add_newtp(struct evlist *evlist,
	const char sys, const char name, void *handler);

	void __perf_evlist__set_sample_bit(struct evlist *evlist,
	enum perf_event_sample_format bit);
	void __perf_evlist__reset_sample_bit(struct evlist *evlist,
	enum perf_event_sample_format bit);

	#define perf_evlist__set_sample_bit(evlist, bit) \
	__perf_evlist__set_sample_bit(evlist, PERF_SAMPLE_##bit)

	#define perf_evlist__reset_sample_bit(evlist, bit) \
	__perf_evlist__reset_sample_bit(evlist, PERF_SAMPLE_##bit)

	int perf_evlist__set_tp_filter(struct evlist evlist, const char filter);
	int perf_evlist__set_tp_filter_pid(struct evlist *evlist, pid_t pid);
	int perf_evlist__set_tp_filter_pids(struct evlist evlist, size_t npids, pid_t pids);

	struct evsel *
	perf_evlist__find_tracepoint_by_id(struct evlist *evlist, int id);

	struct evsel *
	perf_evlist__find_tracepoint_by_name(struct evlist *evlist,
	const char *name);

	int evlist__add_pollfd(struct evlist *evlist, int fd);
	int evlist__filter_pollfd(struct evlist *evlist, short revents_and_mask);

	int evlist__poll(struct evlist *evlist, int timeout);

	struct evsel perf_evlist__id2evsel(struct evlist evlist, u64 id);
	struct evsel perf_evlist__id2evsel_strict(struct evlist evlist,
	u64 id);

	struct perf_sample_id perf_evlist__id2sid(struct evlist evlist, u64 id);

	void perf_evlist__toggle_bkw_mmap(struct evlist *evlist, enum bkw_mmap_state state);

	void evlist__mmap_consume(struct evlist *evlist, int idx);

	int evlist__open(struct evlist *evlist);
	void evlist__close(struct evlist *evlist);

	struct callchain_param;

	void perf_evlist__set_id_pos(struct evlist *evlist);
	bool perf_can_sample_identifier(void);
	bool perf_can_record_switch_events(void);
	bool perf_can_record_cpu_wide(void);
	void perf_evlist__config(struct evlist evlist, struct record_opts opts,
	struct callchain_param *callchain);
	int record_opts__config(struct record_opts *opts);

	int perf_evlist__prepare_workload(struct evlist *evlist,
	struct target *target,
	const char *argv[], bool pipe_output,
	void (exec_error)(int signo, siginfo_t info,
	void *ucontext));
	int perf_evlist__start_workload(struct evlist *evlist);

	struct option;

	int __perf_evlist__parse_mmap_pages(unsigned int mmap_pages, const char str);
	int perf_evlist__parse_mmap_pages(const struct option *opt,
	const char *str,
	int unset);

	unsigned long perf_event_mlock_kb_in_pages(void);

	int evlist__mmap_ex(struct evlist *evlist, unsigned int pages,
	unsigned int auxtrace_pages,
	bool auxtrace_overwrite, int nr_cblocks,
	int affinity, int flush, int comp_level);
	int evlist__mmap(struct evlist *evlist, unsigned int pages);
	void evlist__munmap(struct evlist *evlist);

	size_t evlist__mmap_size(unsigned long pages);

	void evlist__disable(struct evlist *evlist);
	void evlist__enable(struct evlist *evlist);
	void perf_evlist__toggle_enable(struct evlist *evlist);

	int perf_evlist__enable_event_idx(struct evlist *evlist,
	struct evsel *evsel, int idx);

	void perf_evlist__set_selected(struct evlist *evlist,
	struct evsel *evsel);

	int perf_evlist__create_maps(struct evlist evlist, struct target target);
	int perf_evlist__apply_filters(struct evlist evlist, struct evsel *err_evsel);

	void __perf_evlist__set_leader(struct list_head *list);
	void perf_evlist__set_leader(struct evlist *evlist);

	u64 __perf_evlist__combined_sample_type(struct evlist *evlist);
	u64 perf_evlist__combined_sample_type(struct evlist *evlist);
	u64 perf_evlist__combined_branch_type(struct evlist *evlist);
	bool perf_evlist__sample_id_all(struct evlist *evlist);
	u16 perf_evlist__id_hdr_size(struct evlist *evlist);

	int perf_evlist__parse_sample(struct evlist evlist, union perf_event event,
	struct perf_sample *sample);

	int perf_evlist__parse_sample_timestamp(struct evlist *evlist,
	union perf_event *event,
	u64 *timestamp);

	bool perf_evlist__valid_sample_type(struct evlist *evlist);
	bool perf_evlist__valid_sample_id_all(struct evlist *evlist);
	bool perf_evlist__valid_read_format(struct evlist *evlist);

	void perf_evlist__splice_list_tail(struct evlist *evlist,
	struct list_head *list);

	static inline bool perf_evlist__empty(struct evlist *evlist)
	{
	return list_empty(&evlist->core.entries);
	}

	static inline struct evsel evlist__first(struct evlist evlist)
	{
	struct perf_evsel *evsel = perf_evlist__first(&evlist->core);

	return container_of(evsel, struct evsel, core);
	}

	static inline struct evsel evlist__last(struct evlist evlist)
	{
	struct perf_evsel *evsel = perf_evlist__last(&evlist->core);

	return container_of(evsel, struct evsel, core);
	}

	int perf_evlist__strerror_open(struct evlist evlist, int err, char buf, size_t size);
	int perf_evlist__strerror_mmap(struct evlist evlist, int err, char buf, size_t size);

	bool perf_evlist__can_select_event(struct evlist evlist, const char str);
	void perf_evlist__to_front(struct evlist *evlist,
	struct evsel *move_evsel);

	/**
	* __evlist__for_each_entry - iterate thru all the evsels
	* @list: list_head instance to iterate
	* @evsel: struct evsel iterator
	*/
	#define __evlist__for_each_entry(list, evsel) \
	list_for_each_entry(evsel, list, core.node)

	/**
	* evlist__for_each_entry - iterate thru all the evsels
	* @evlist: evlist instance to iterate
	* @evsel: struct evsel iterator
	*/
	#define evlist__for_each_entry(evlist, evsel) \
	__evlist__for_each_entry(&(evlist)->core.entries, evsel)

	/**
	* __evlist__for_each_entry_continue - continue iteration thru all the evsels
	* @list: list_head instance to iterate
	* @evsel: struct evsel iterator
	*/
	#define __evlist__for_each_entry_continue(list, evsel) \
	list_for_each_entry_continue(evsel, list, core.node)

	/**
	* evlist__for_each_entry_continue - continue iteration thru all the evsels
	* @evlist: evlist instance to iterate
	* @evsel: struct evsel iterator
	*/
	#define evlist__for_each_entry_continue(evlist, evsel) \
	__evlist__for_each_entry_continue(&(evlist)->core.entries, evsel)

	/**
	* __evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order
	* @list: list_head instance to iterate
	* @evsel: struct evsel iterator
	*/
	#define __evlist__for_each_entry_reverse(list, evsel) \
	list_for_each_entry_reverse(evsel, list, core.node)

	/**
	* evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order
	* @evlist: evlist instance to iterate
	* @evsel: struct evsel iterator
	*/
	#define evlist__for_each_entry_reverse(evlist, evsel) \
	__evlist__for_each_entry_reverse(&(evlist)->core.entries, evsel)

	/**
	* __evlist__for_each_entry_safe - safely iterate thru all the evsels
	* @list: list_head instance to iterate
	* @tmp: struct evsel temp iterator
	* @evsel: struct evsel iterator
	*/
	#define __evlist__for_each_entry_safe(list, tmp, evsel) \
	list_for_each_entry_safe(evsel, tmp, list, core.node)

	/**
	* evlist__for_each_entry_safe - safely iterate thru all the evsels
	* @evlist: evlist instance to iterate
	* @evsel: struct evsel iterator
	* @tmp: struct evsel temp iterator
	*/
	#define evlist__for_each_entry_safe(evlist, tmp, evsel) \
	__evlist__for_each_entry_safe(&(evlist)->core.entries, tmp, evsel)

	void perf_evlist__set_tracking_event(struct evlist *evlist,
	struct evsel *tracking_evsel);

	struct evsel *
	perf_evlist__find_evsel_by_str(struct evlist evlist, const char str);

	struct evsel perf_evlist__event2evsel(struct evlist evlist,
	union perf_event *event);

	bool perf_evlist__exclude_kernel(struct evlist *evlist);

	void perf_evlist__force_leader(struct evlist *evlist);

	struct evsel perf_evlist__reset_weak_group(struct evlist evlist,
	struct evsel *evsel);
	#endif /* __PERF_EVLIST_H */