[mirror_ubuntu-zesty-kernel.git] / tools / perf / util / evlist.h

#ifndef __PERF_EVLIST_H
#define __PERF_EVLIST_H 1

#include <linux/list.h>
#include <api/fd/array.h>
#include <stdio.h>
#include "../perf.h"
#include "event.h"
#include "evsel.h"
#include "util.h"
#include "auxtrace.h"
#include <unistd.h>

struct pollfd;
struct thread_map;
struct cpu_map;
struct record_opts;

#define PERF_EVLIST__HLIST_BITS 8
#define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS)

/**
 * struct perf_mmap - perf's ring buffer mmap details
 *
 * @refcnt - e.g. code using PERF_EVENT_IOC_SET_OUTPUT to share this
 */
struct perf_mmap {
	void		 *base;
	int		 mask;
	int		 refcnt;
	u64		 prev;
	struct auxtrace_mmap auxtrace_mmap;
	char		 event_copy[PERF_SAMPLE_MAX_SIZE] __attribute__((aligned(8)));
};

struct perf_evlist {
	struct list_head entries;
	struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
	int		 nr_entries;
	int		 nr_groups;
	int		 nr_mmaps;
	size_t		 mmap_len;
	int		 id_pos;
	int		 is_pos;
	u64		 combined_sample_type;
	struct {
		int	cork_fd;
		pid_t	pid;
	} workload;
	bool		 overwrite;
	struct fdarray	 pollfd;
	struct perf_mmap *mmap;
	struct thread_map *threads;
	struct cpu_map	  *cpus;
	struct perf_evsel *selected;
	struct events_stats stats;
};

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

struct perf_evlist *perf_evlist__new(void);
struct perf_evlist *perf_evlist__new_default(void);
void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus,
		       struct thread_map *threads);
void perf_evlist__exit(struct perf_evlist *evlist);
void perf_evlist__delete(struct perf_evlist *evlist);

void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry);
int perf_evlist__add_default(struct perf_evlist *evlist);
int __perf_evlist__add_default_attrs(struct perf_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_newtp(struct perf_evlist *evlist,
			   const char *sys, const char *name, void *handler);

int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter);
int perf_evlist__set_filter_pid(struct perf_evlist *evlist, pid_t pid);
int perf_evlist__set_filter_pids(struct perf_evlist *evlist, size_t npids, pid_t *pids);

struct perf_evsel *
perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id);

struct perf_evsel *
perf_evlist__find_tracepoint_by_name(struct perf_evlist *evlist,
				     const char *name);

void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel,
			 int cpu, int thread, u64 id);

int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd);
int perf_evlist__alloc_pollfd(struct perf_evlist *evlist);
int perf_evlist__filter_pollfd(struct perf_evlist *evlist, short revents_and_mask);

int perf_evlist__poll(struct perf_evlist *evlist, int timeout);

struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id);

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

union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx);

void perf_evlist__mmap_consume(struct perf_evlist *evlist, int idx);

int perf_evlist__open(struct perf_evlist *evlist);
void perf_evlist__close(struct perf_evlist *evlist);

void perf_evlist__set_id_pos(struct perf_evlist *evlist);
bool perf_can_sample_identifier(void);
void perf_evlist__config(struct perf_evlist *evlist, struct record_opts *opts);
int record_opts__config(struct record_opts *opts);

int perf_evlist__prepare_workload(struct perf_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 perf_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);

int perf_evlist__mmap_ex(struct perf_evlist *evlist, unsigned int pages,
			 bool overwrite, unsigned int auxtrace_pages,
			 bool auxtrace_overwrite);
int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
		      bool overwrite);
void perf_evlist__munmap(struct perf_evlist *evlist);

void perf_evlist__disable(struct perf_evlist *evlist);
void perf_evlist__enable(struct perf_evlist *evlist);

int perf_evlist__disable_event(struct perf_evlist *evlist,
			       struct perf_evsel *evsel);
int perf_evlist__enable_event(struct perf_evlist *evlist,
			      struct perf_evsel *evsel);
int perf_evlist__enable_event_idx(struct perf_evlist *evlist,
				  struct perf_evsel *evsel, int idx);

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

static inline void perf_evlist__set_maps(struct perf_evlist *evlist,
					 struct cpu_map *cpus,
					 struct thread_map *threads)
{
	evlist->cpus	= cpus;
	evlist->threads	= threads;
}

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

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

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

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

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

void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
				   struct list_head *list,
				   int nr_entries);

static inline struct perf_evsel *perf_evlist__first(struct perf_evlist *evlist)
{
	return list_entry(evlist->entries.next, struct perf_evsel, node);
}

static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist)
{
	return list_entry(evlist->entries.prev, struct perf_evsel, node);
}

size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp);

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

static inline u64 perf_mmap__read_head(struct perf_mmap *mm)
{
	struct perf_event_mmap_page *pc = mm->base;
	u64 head = ACCESS_ONCE(pc->data_head);
	rmb();
	return head;
}

static inline void perf_mmap__write_tail(struct perf_mmap *md, u64 tail)
{
	struct perf_event_mmap_page *pc = md->base;

	/*
	 * ensure all reads are done before we write the tail out.
	 */
	mb();
	pc->data_tail = tail;
}

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

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

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

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

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

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

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

/**
 * __evlist__for_each_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_safe(list, tmp, evsel) \
        list_for_each_entry_safe(evsel, tmp, list, node)

/**
 * evlist__for_each_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_safe(evlist, tmp, evsel) \
	__evlist__for_each_safe(&(evlist)->entries, tmp, evsel)

void perf_evlist__set_tracking_event(struct perf_evlist *evlist,
				     struct perf_evsel *tracking_evsel);

#endif /* __PERF_EVLIST_H */
Commit	Line	Data
361c99a6 ACM	1	#ifndef __PERF_EVLIST_H
	2	#define __PERF_EVLIST_H 1
	3
	4	#include <linux/list.h>
1b85337d	5	#include <api/fd/array.h>
50d08e47	6	#include <stdio.h>
70db7533	7	#include "../perf.h"
04391deb	8	#include "event.h"
0c21f736	9	#include "evsel.h"
50d08e47	10	#include "util.h"
718c602d	11	#include "auxtrace.h"
35b9d88e	12	#include <unistd.h>
361c99a6	13
5c581041	14	struct pollfd;
f8a95309 ACM	15	struct thread_map;
f8a95309 ACM	16	struct cpu_map;
b4006796	17	struct record_opts;
5c581041	18
70db7533 ACM	19	#define PERF_EVLIST__HLIST_BITS 8
	20	#define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS)
	21
82396986 ACM	22	/**
	23	* struct perf_mmap - perf's ring buffer mmap details
	24	*
	25	* @refcnt - e.g. code using PERF_EVENT_IOC_SET_OUTPUT to share this
	26	*/
0479b8b9 DA	27	struct perf_mmap {
	28	void *base;
	29	int mask;
82396986	30	int refcnt;
7b8283b5	31	u64 prev;
718c602d	32	struct auxtrace_mmap auxtrace_mmap;
a73b6c19	33	char event_copy[PERF_SAMPLE_MAX_SIZE] __attribute__((aligned(8)));
0479b8b9 DA	34	};
0479b8b9 DA	35
361c99a6 ACM	36	struct perf_evlist {
361c99a6 ACM	37	struct list_head entries;
70db7533	38	struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
361c99a6	39	int nr_entries;
97f63e4a	40	int nr_groups;
aece948f	41	int nr_mmaps;
994a1f78	42	size_t mmap_len;
75562573 AH	43	int id_pos;
	44	int is_pos;
	45	u64 combined_sample_type;
35b9d88e ACM	46	struct {
	47	int cork_fd;
	48	pid_t pid;
	49	} workload;
7bb41152	50	bool overwrite;
1b85337d	51	struct fdarray pollfd;
70db7533	52	struct perf_mmap *mmap;
7e2ed097 ACM	53	struct thread_map *threads;
7e2ed097 ACM	54	struct cpu_map *cpus;
81cce8de	55	struct perf_evsel *selected;
75be989a	56	struct events_stats stats;
361c99a6 ACM	57	};
361c99a6 ACM	58
ee29be62 ACM	59	struct perf_evsel_str_handler {
	60	const char *name;
	61	void *handler;
	62	};
	63
334fe7a3	64	struct perf_evlist *perf_evlist__new(void);
b22d54b0	65	struct perf_evlist *perf_evlist__new_default(void);
7e2ed097 ACM	66	void perf_evlist__init(struct perf_evlist evlist, struct cpu_map cpus,
7e2ed097 ACM	67	struct thread_map *threads);
ef1d1af2	68	void perf_evlist__exit(struct perf_evlist *evlist);
361c99a6 ACM	69	void perf_evlist__delete(struct perf_evlist *evlist);
	70
	71	void perf_evlist__add(struct perf_evlist evlist, struct perf_evsel entry);
	72	int perf_evlist__add_default(struct perf_evlist *evlist);
79695e1b ACM	73	int __perf_evlist__add_default_attrs(struct perf_evlist *evlist,
79695e1b ACM	74	struct perf_event_attr *attrs, size_t nr_attrs);
e60fc847	75
79695e1b ACM	76	#define perf_evlist__add_default_attrs(evlist, array) \
79695e1b ACM	77	__perf_evlist__add_default_attrs(evlist, array, ARRAY_SIZE(array))
361c99a6	78
39876e7d ACM	79	int perf_evlist__add_newtp(struct perf_evlist *evlist,
	80	const char sys, const char name, void *handler);
	81
745cefc5	82	int perf_evlist__set_filter(struct perf_evlist evlist, const char filter);
cfd70a26	83	int perf_evlist__set_filter_pid(struct perf_evlist *evlist, pid_t pid);
be199ada	84	int perf_evlist__set_filter_pids(struct perf_evlist evlist, size_t npids, pid_t pids);
745cefc5	85
da378962 ACM	86	struct perf_evsel *
	87	perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id);
	88
a2f2804a DA	89	struct perf_evsel *
	90	perf_evlist__find_tracepoint_by_name(struct perf_evlist *evlist,
	91	const char *name);
	92
a91e5431 ACM	93	void perf_evlist__id_add(struct perf_evlist evlist, struct perf_evsel evsel,
a91e5431 ACM	94	int cpu, int thread, u64 id);
3d3b5e95	95
ad6765dd ACM	96	int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd);
ad6765dd ACM	97	int perf_evlist__alloc_pollfd(struct perf_evlist *evlist);
1ddec7f0 ACM	98	int perf_evlist__filter_pollfd(struct perf_evlist *evlist, short revents_and_mask);
1ddec7f0 ACM	99
f66a889d ACM	100	int perf_evlist__poll(struct perf_evlist *evlist, int timeout);
f66a889d ACM	101
70db7533 ACM	102	struct perf_evsel perf_evlist__id2evsel(struct perf_evlist evlist, u64 id);
70db7533 ACM	103
932a3594 JO	104	struct perf_sample_id perf_evlist__id2sid(struct perf_evlist evlist, u64 id);
932a3594 JO	105
316c7136	106	union perf_event perf_evlist__mmap_read(struct perf_evlist evlist, int idx);
04391deb	107
8e50d384 ZZ	108	void perf_evlist__mmap_consume(struct perf_evlist *evlist, int idx);
8e50d384 ZZ	109
6a4bb04c	110	int perf_evlist__open(struct perf_evlist *evlist);
a74b4b66	111	void perf_evlist__close(struct perf_evlist *evlist);
727ab04e	112
75562573 AH	113	void perf_evlist__set_id_pos(struct perf_evlist *evlist);
75562573 AH	114	bool perf_can_sample_identifier(void);
b4006796 ACM	115	void perf_evlist__config(struct perf_evlist evlist, struct record_opts opts);
b4006796 ACM	116	int record_opts__config(struct record_opts *opts);
0f82ebc4	117
35b9d88e	118	int perf_evlist__prepare_workload(struct perf_evlist *evlist,
602ad878	119	struct target *target,
55e162ea	120	const char *argv[], bool pipe_output,
735f7e0b ACM	121	void (exec_error)(int signo, siginfo_t info,
735f7e0b ACM	122	void *ucontext));
35b9d88e ACM	123	int perf_evlist__start_workload(struct perf_evlist *evlist);
35b9d88e ACM	124
724ce97e ACM	125	struct option;
724ce97e ACM	126
e9db1310	127	int __perf_evlist__parse_mmap_pages(unsigned int mmap_pages, const char str);
994a1f78 JO	128	int perf_evlist__parse_mmap_pages(const struct option *opt,
	129	const char *str,
	130	int unset);
	131
718c602d AH	132	int perf_evlist__mmap_ex(struct perf_evlist *evlist, unsigned int pages,
	133	bool overwrite, unsigned int auxtrace_pages,
	134	bool auxtrace_overwrite);
50a682ce ACM	135	int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
50a682ce ACM	136	bool overwrite);
7e2ed097 ACM	137	void perf_evlist__munmap(struct perf_evlist *evlist);
7e2ed097 ACM	138
4152ab37	139	void perf_evlist__disable(struct perf_evlist *evlist);
764e16a3	140	void perf_evlist__enable(struct perf_evlist *evlist);
4152ab37	141
395c3070 AH	142	int perf_evlist__disable_event(struct perf_evlist *evlist,
	143	struct perf_evsel *evsel);
	144	int perf_evlist__enable_event(struct perf_evlist *evlist,
	145	struct perf_evsel *evsel);
1c65056c AH	146	int perf_evlist__enable_event_idx(struct perf_evlist *evlist,
1c65056c AH	147	struct perf_evsel *evsel, int idx);
395c3070	148
81cce8de ACM	149	void perf_evlist__set_selected(struct perf_evlist *evlist,
	150	struct perf_evsel *evsel);
	151
7e2ed097 ACM	152	static inline void perf_evlist__set_maps(struct perf_evlist *evlist,
	153	struct cpu_map *cpus,
	154	struct thread_map *threads)
	155	{
	156	evlist->cpus = cpus;
	157	evlist->threads = threads;
	158	}
	159
602ad878	160	int perf_evlist__create_maps(struct perf_evlist evlist, struct target target);
23d4aad4	161	int perf_evlist__apply_filters(struct perf_evlist evlist, struct perf_evsel *err_evsel);
f8a95309	162
63dab225 ACM	163	void __perf_evlist__set_leader(struct list_head *list);
	164	void perf_evlist__set_leader(struct perf_evlist *evlist);
	165
9ede473c	166	u64 perf_evlist__read_format(struct perf_evlist *evlist);
75562573 AH	167	u64 __perf_evlist__combined_sample_type(struct perf_evlist *evlist);
75562573 AH	168	u64 perf_evlist__combined_sample_type(struct perf_evlist *evlist);
0c21f736 ACM	169	bool perf_evlist__sample_id_all(struct perf_evlist *evlist);
0c21f736 ACM	170	u16 perf_evlist__id_hdr_size(struct perf_evlist *evlist);
74429964	171
a3f698fe	172	int perf_evlist__parse_sample(struct perf_evlist evlist, union perf_event event,
0807d2d8	173	struct perf_sample *sample);
cb0b29e0	174
0c21f736 ACM	175	bool perf_evlist__valid_sample_type(struct perf_evlist *evlist);
0c21f736 ACM	176	bool perf_evlist__valid_sample_id_all(struct perf_evlist *evlist);
9ede473c	177	bool perf_evlist__valid_read_format(struct perf_evlist *evlist);
0529bc1f JO	178
	179	void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
	180	struct list_head *list,
	181	int nr_entries);
0c21f736 ACM	182
	183	static inline struct perf_evsel perf_evlist__first(struct perf_evlist evlist)
	184	{
	185	return list_entry(evlist->entries.next, struct perf_evsel, node);
	186	}
	187
	188	static inline struct perf_evsel perf_evlist__last(struct perf_evlist evlist)
	189	{
	190	return list_entry(evlist->entries.prev, struct perf_evsel, node);
	191	}
78f067b3 ACM	192
78f067b3 ACM	193	size_t perf_evlist__fprintf(struct perf_evlist evlist, FILE fp);
0479b8b9	194
a8f23d8f	195	int perf_evlist__strerror_open(struct perf_evlist evlist, int err, char buf, size_t size);
956fa571	196	int perf_evlist__strerror_mmap(struct perf_evlist evlist, int err, char buf, size_t size);
6ef068cb	197
7b8283b5	198	static inline u64 perf_mmap__read_head(struct perf_mmap *mm)
0479b8b9 DA	199	{
0479b8b9 DA	200	struct perf_event_mmap_page *pc = mm->base;
7b8283b5	201	u64 head = ACCESS_ONCE(pc->data_head);
0479b8b9 DA	202	rmb();
	203	return head;
	204	}
	205
7b8283b5	206	static inline void perf_mmap__write_tail(struct perf_mmap *md, u64 tail)
0479b8b9 DA	207	{
	208	struct perf_event_mmap_page *pc = md->base;
	209
	210	/*
	211	* ensure all reads are done before we write the tail out.
	212	*/
a94d342b	213	mb();
0479b8b9 DA	214	pc->data_tail = tail;
	215	}
	216
c09ec622	217	bool perf_evlist__can_select_event(struct perf_evlist evlist, const char str);
a025e4f0 AH	218	void perf_evlist__to_front(struct perf_evlist *evlist,
	219	struct perf_evsel *move_evsel);
	220
0050f7aa ACM	221	/**
	222	* __evlist__for_each - iterate thru all the evsels
	223	* @list: list_head instance to iterate
	224	* @evsel: struct evsel iterator
	225	*/
	226	#define __evlist__for_each(list, evsel) \
	227	list_for_each_entry(evsel, list, node)
	228
	229	/**
	230	* evlist__for_each - iterate thru all the evsels
	231	* @evlist: evlist instance to iterate
	232	* @evsel: struct evsel iterator
	233	*/
	234	#define evlist__for_each(evlist, evsel) \
	235	__evlist__for_each(&(evlist)->entries, evsel)
	236
	237	/**
	238	* __evlist__for_each_continue - continue iteration thru all the evsels
	239	* @list: list_head instance to iterate
	240	* @evsel: struct evsel iterator
	241	*/
	242	#define __evlist__for_each_continue(list, evsel) \
	243	list_for_each_entry_continue(evsel, list, node)
	244
	245	/**
	246	* evlist__for_each_continue - continue iteration thru all the evsels
	247	* @evlist: evlist instance to iterate
	248	* @evsel: struct evsel iterator
	249	*/
	250	#define evlist__for_each_continue(evlist, evsel) \
	251	__evlist__for_each_continue(&(evlist)->entries, evsel)
	252
	253	/**
	254	* __evlist__for_each_reverse - iterate thru all the evsels in reverse order
	255	* @list: list_head instance to iterate
	256	* @evsel: struct evsel iterator
	257	*/
	258	#define __evlist__for_each_reverse(list, evsel) \
	259	list_for_each_entry_reverse(evsel, list, node)
	260
	261	/**
	262	* evlist__for_each_reverse - iterate thru all the evsels in reverse order
	263	* @evlist: evlist instance to iterate
	264	* @evsel: struct evsel iterator
	265	*/
	266	#define evlist__for_each_reverse(evlist, evsel) \
	267	__evlist__for_each_reverse(&(evlist)->entries, evsel)
	268
	269	/**
	270	* __evlist__for_each_safe - safely iterate thru all the evsels
	271	* @list: list_head instance to iterate
	272	* @tmp: struct evsel temp iterator
	273	* @evsel: struct evsel iterator
	274	*/
	275	#define __evlist__for_each_safe(list, tmp, evsel) \
	276	list_for_each_entry_safe(evsel, tmp, list, node)
	277
	278	/**
	279	* evlist__for_each_safe - safely iterate thru all the evsels
	280	* @evlist: evlist instance to iterate
	281	* @evsel: struct evsel iterator
	282	* @tmp: struct evsel temp iterator
	283	*/
	284	#define evlist__for_each_safe(evlist, tmp, evsel) \
285	__evlist__for_each_safe(&(evlist)->entries, tmp, evsel)
c09ec622	286
60b0896c AH	287	void perf_evlist__set_tracking_event(struct perf_evlist *evlist,
	288	struct perf_evsel *tracking_evsel);
	289
361c99a6	290	#endif /* __PERF_EVLIST_H */