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

#ifndef __PERF_EVLIST_H
#define __PERF_EVLIST_H 1

#include <linux/atomic.h>
#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;
	atomic_t	 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;
	bool		 overwrite;
	bool		 enabled;
	bool		 has_user_cpus;
	size_t		 mmap_len;
	int		 id_pos;
	int		 is_pos;
	u64		 combined_sample_type;
	struct {
		int	cork_fd;
		pid_t	pid;
	} workload;
	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_env	*env;
};

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);
struct perf_evlist *perf_evlist__new_dummy(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);
void perf_evlist__remove(struct perf_evlist *evlist, struct perf_evsel *evsel);
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_dummy(struct perf_evlist *evlist);

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

void __perf_evlist__set_sample_bit(struct perf_evlist *evlist,
				   enum perf_event_sample_format bit);
void __perf_evlist__reset_sample_bit(struct perf_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_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__id_add_fd(struct perf_evlist *evlist,
			   struct perf_evsel *evsel,
			   int cpu, int thread, int fd);

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_evsel *perf_evlist__id2evsel_strict(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);

union perf_event *perf_evlist__mmap_read_backward(struct perf_evlist *evlist,
						  int idx);
void perf_evlist__mmap_read_catchup(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);

struct callchain_param;

void perf_evlist__set_id_pos(struct perf_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 perf_evlist *evlist, struct record_opts *opts,
			 struct callchain_param *callchain);
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);

unsigned long perf_event_mlock_kb_in_pages(void);

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);
void perf_evlist__toggle_enable(struct perf_evlist *evlist);

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);

void perf_evlist__set_maps(struct perf_evlist *evlist, struct cpu_map *cpus,
			   struct thread_map *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);
u64 perf_evlist__combined_branch_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);

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);

void perf_event_attr__set_max_precise_ip(struct perf_event_attr *attr);

struct perf_evsel *
perf_evlist__find_evsel_by_str(struct perf_evlist *evlist, const char *str);
#endif /* __PERF_EVLIST_H */
Commit	Line	Data
361c99a6 ACM	1	#ifndef __PERF_EVLIST_H
	2	#define __PERF_EVLIST_H 1
	3
7143849a	4	#include <linux/atomic.h>
361c99a6	5	#include <linux/list.h>
1b85337d	6	#include <api/fd/array.h>
50d08e47	7	#include <stdio.h>
70db7533	8	#include "../perf.h"
04391deb	9	#include "event.h"
0c21f736	10	#include "evsel.h"
50d08e47	11	#include "util.h"
718c602d	12	#include "auxtrace.h"
35b9d88e	13	#include <unistd.h>
361c99a6	14
5c581041	15	struct pollfd;
f8a95309 ACM	16	struct thread_map;
f8a95309 ACM	17	struct cpu_map;
b4006796	18	struct record_opts;
5c581041	19
70db7533 ACM	20	#define PERF_EVLIST__HLIST_BITS 8
	21	#define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS)
	22
82396986 ACM	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	*/
0479b8b9 DA	28	struct perf_mmap {
	29	void *base;
	30	int mask;
7143849a	31	atomic_t refcnt;
7b8283b5	32	u64 prev;
718c602d	33	struct auxtrace_mmap auxtrace_mmap;
a73b6c19	34	char event_copy[PERF_SAMPLE_MAX_SIZE] __attribute__((aligned(8)));
0479b8b9 DA	35	};
0479b8b9 DA	36
361c99a6 ACM	37	struct perf_evlist {
361c99a6 ACM	38	struct list_head entries;
70db7533	39	struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
361c99a6	40	int nr_entries;
97f63e4a	41	int nr_groups;
aece948f	42	int nr_mmaps;
86066064	43	bool overwrite;
2b56bcfb	44	bool enabled;
ec9a77a7	45	bool has_user_cpus;
994a1f78	46	size_t mmap_len;
75562573 AH	47	int id_pos;
	48	int is_pos;
	49	u64 combined_sample_type;
35b9d88e ACM	50	struct {
	51	int cork_fd;
	52	pid_t pid;
	53	} workload;
1b85337d	54	struct fdarray pollfd;
70db7533	55	struct perf_mmap *mmap;
7e2ed097 ACM	56	struct thread_map *threads;
7e2ed097 ACM	57	struct cpu_map *cpus;
81cce8de	58	struct perf_evsel *selected;
75be989a	59	struct events_stats stats;
2c07144d	60	struct perf_env *env;
361c99a6 ACM	61	};
361c99a6 ACM	62
ee29be62 ACM	63	struct perf_evsel_str_handler {
	64	const char *name;
	65	void *handler;
	66	};
	67
334fe7a3	68	struct perf_evlist *perf_evlist__new(void);
b22d54b0	69	struct perf_evlist *perf_evlist__new_default(void);
5bae0250	70	struct perf_evlist *perf_evlist__new_dummy(void);
7e2ed097 ACM	71	void perf_evlist__init(struct perf_evlist evlist, struct cpu_map cpus,
7e2ed097 ACM	72	struct thread_map *threads);
ef1d1af2	73	void perf_evlist__exit(struct perf_evlist *evlist);
361c99a6 ACM	74	void perf_evlist__delete(struct perf_evlist *evlist);
	75
	76	void perf_evlist__add(struct perf_evlist evlist, struct perf_evsel entry);
4768230a	77	void perf_evlist__remove(struct perf_evlist evlist, struct perf_evsel evsel);
361c99a6	78	int perf_evlist__add_default(struct perf_evlist *evlist);
79695e1b ACM	79	int __perf_evlist__add_default_attrs(struct perf_evlist *evlist,
79695e1b ACM	80	struct perf_event_attr *attrs, size_t nr_attrs);
e60fc847	81
79695e1b ACM	82	#define perf_evlist__add_default_attrs(evlist, array) \
79695e1b ACM	83	__perf_evlist__add_default_attrs(evlist, array, ARRAY_SIZE(array))
361c99a6	84
5bae0250 ACM	85	int perf_evlist__add_dummy(struct perf_evlist *evlist);
5bae0250 ACM	86
39876e7d ACM	87	int perf_evlist__add_newtp(struct perf_evlist *evlist,
	88	const char sys, const char name, void *handler);
	89
22c8a376 ACM	90	void __perf_evlist__set_sample_bit(struct perf_evlist *evlist,
	91	enum perf_event_sample_format bit);
	92	void __perf_evlist__reset_sample_bit(struct perf_evlist *evlist,
	93	enum perf_event_sample_format bit);
	94
	95	#define perf_evlist__set_sample_bit(evlist, bit) \
	96	__perf_evlist__set_sample_bit(evlist, PERF_SAMPLE_##bit)
	97
	98	#define perf_evlist__reset_sample_bit(evlist, bit) \
	99	__perf_evlist__reset_sample_bit(evlist, PERF_SAMPLE_##bit)
	100
745cefc5	101	int perf_evlist__set_filter(struct perf_evlist evlist, const char filter);
cfd70a26	102	int perf_evlist__set_filter_pid(struct perf_evlist *evlist, pid_t pid);
be199ada	103	int perf_evlist__set_filter_pids(struct perf_evlist evlist, size_t npids, pid_t pids);
745cefc5	104
da378962 ACM	105	struct perf_evsel *
	106	perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id);
	107
a2f2804a DA	108	struct perf_evsel *
	109	perf_evlist__find_tracepoint_by_name(struct perf_evlist *evlist,
	110	const char *name);
	111
a91e5431 ACM	112	void perf_evlist__id_add(struct perf_evlist evlist, struct perf_evsel evsel,
a91e5431 ACM	113	int cpu, int thread, u64 id);
1c59612d JO	114	int perf_evlist__id_add_fd(struct perf_evlist *evlist,
	115	struct perf_evsel *evsel,
	116	int cpu, int thread, int fd);
3d3b5e95	117
ad6765dd ACM	118	int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd);
ad6765dd ACM	119	int perf_evlist__alloc_pollfd(struct perf_evlist *evlist);
1ddec7f0 ACM	120	int perf_evlist__filter_pollfd(struct perf_evlist *evlist, short revents_and_mask);
1ddec7f0 ACM	121
f66a889d ACM	122	int perf_evlist__poll(struct perf_evlist *evlist, int timeout);
f66a889d ACM	123
70db7533	124	struct perf_evsel perf_evlist__id2evsel(struct perf_evlist evlist, u64 id);
dddcf6ab AH	125	struct perf_evsel perf_evlist__id2evsel_strict(struct perf_evlist evlist,
dddcf6ab AH	126	u64 id);
70db7533	127
932a3594 JO	128	struct perf_sample_id perf_evlist__id2sid(struct perf_evlist evlist, u64 id);
932a3594 JO	129
316c7136	130	union perf_event perf_evlist__mmap_read(struct perf_evlist evlist, int idx);
04391deb	131
e24c7520 WN	132	union perf_event perf_evlist__mmap_read_backward(struct perf_evlist evlist,
	133	int idx);
	134	void perf_evlist__mmap_read_catchup(struct perf_evlist *evlist, int idx);
	135
8e50d384 ZZ	136	void perf_evlist__mmap_consume(struct perf_evlist *evlist, int idx);
8e50d384 ZZ	137
6a4bb04c	138	int perf_evlist__open(struct perf_evlist *evlist);
a74b4b66	139	void perf_evlist__close(struct perf_evlist *evlist);
727ab04e	140
e68ae9cf ACM	141	struct callchain_param;
e68ae9cf ACM	142
75562573 AH	143	void perf_evlist__set_id_pos(struct perf_evlist *evlist);
75562573 AH	144	bool perf_can_sample_identifier(void);
b757bb09	145	bool perf_can_record_switch_events(void);
83509565	146	bool perf_can_record_cpu_wide(void);
e68ae9cf ACM	147	void perf_evlist__config(struct perf_evlist evlist, struct record_opts opts,
e68ae9cf ACM	148	struct callchain_param *callchain);
b4006796	149	int record_opts__config(struct record_opts *opts);
0f82ebc4	150
35b9d88e	151	int perf_evlist__prepare_workload(struct perf_evlist *evlist,
602ad878	152	struct target *target,
55e162ea	153	const char *argv[], bool pipe_output,
735f7e0b ACM	154	void (exec_error)(int signo, siginfo_t info,
735f7e0b ACM	155	void *ucontext));
35b9d88e ACM	156	int perf_evlist__start_workload(struct perf_evlist *evlist);
35b9d88e ACM	157
724ce97e ACM	158	struct option;
724ce97e ACM	159
e9db1310	160	int __perf_evlist__parse_mmap_pages(unsigned int mmap_pages, const char str);
994a1f78 JO	161	int perf_evlist__parse_mmap_pages(const struct option *opt,
	162	const char *str,
	163	int unset);
	164
f5e7150c ACM	165	unsigned long perf_event_mlock_kb_in_pages(void);
f5e7150c ACM	166
718c602d AH	167	int perf_evlist__mmap_ex(struct perf_evlist *evlist, unsigned int pages,
	168	bool overwrite, unsigned int auxtrace_pages,
	169	bool auxtrace_overwrite);
50a682ce ACM	170	int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
50a682ce ACM	171	bool overwrite);
7e2ed097 ACM	172	void perf_evlist__munmap(struct perf_evlist *evlist);
7e2ed097 ACM	173
4152ab37	174	void perf_evlist__disable(struct perf_evlist *evlist);
764e16a3	175	void perf_evlist__enable(struct perf_evlist *evlist);
2b56bcfb	176	void perf_evlist__toggle_enable(struct perf_evlist *evlist);
4152ab37	177
1c65056c AH	178	int perf_evlist__enable_event_idx(struct perf_evlist *evlist,
1c65056c AH	179	struct perf_evsel *evsel, int idx);
395c3070	180
81cce8de ACM	181	void perf_evlist__set_selected(struct perf_evlist *evlist,
	182	struct perf_evsel *evsel);
	183
d5bc056e AH	184	void perf_evlist__set_maps(struct perf_evlist evlist, struct cpu_map cpus,
d5bc056e AH	185	struct thread_map *threads);
602ad878	186	int perf_evlist__create_maps(struct perf_evlist evlist, struct target target);
23d4aad4	187	int perf_evlist__apply_filters(struct perf_evlist evlist, struct perf_evsel *err_evsel);
f8a95309	188
63dab225 ACM	189	void __perf_evlist__set_leader(struct list_head *list);
	190	void perf_evlist__set_leader(struct perf_evlist *evlist);
	191
9ede473c	192	u64 perf_evlist__read_format(struct perf_evlist *evlist);
75562573 AH	193	u64 __perf_evlist__combined_sample_type(struct perf_evlist *evlist);
75562573 AH	194	u64 perf_evlist__combined_sample_type(struct perf_evlist *evlist);
98df858e	195	u64 perf_evlist__combined_branch_type(struct perf_evlist *evlist);
0c21f736 ACM	196	bool perf_evlist__sample_id_all(struct perf_evlist *evlist);
0c21f736 ACM	197	u16 perf_evlist__id_hdr_size(struct perf_evlist *evlist);
74429964	198
a3f698fe	199	int perf_evlist__parse_sample(struct perf_evlist evlist, union perf_event event,
0807d2d8	200	struct perf_sample *sample);
cb0b29e0	201
0c21f736 ACM	202	bool perf_evlist__valid_sample_type(struct perf_evlist *evlist);
0c21f736 ACM	203	bool perf_evlist__valid_sample_id_all(struct perf_evlist *evlist);
9ede473c	204	bool perf_evlist__valid_read_format(struct perf_evlist *evlist);
0529bc1f JO	205
0529bc1f JO	206	void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
f114d6ef	207	struct list_head *list);
0c21f736 ACM	208
	209	static inline struct perf_evsel perf_evlist__first(struct perf_evlist evlist)
	210	{
	211	return list_entry(evlist->entries.next, struct perf_evsel, node);
	212	}
	213
	214	static inline struct perf_evsel perf_evlist__last(struct perf_evlist evlist)
	215	{
	216	return list_entry(evlist->entries.prev, struct perf_evsel, node);
	217	}
78f067b3 ACM	218
78f067b3 ACM	219	size_t perf_evlist__fprintf(struct perf_evlist evlist, FILE fp);
0479b8b9	220
a8f23d8f	221	int perf_evlist__strerror_open(struct perf_evlist evlist, int err, char buf, size_t size);
956fa571	222	int perf_evlist__strerror_mmap(struct perf_evlist evlist, int err, char buf, size_t size);
6ef068cb	223
7b8283b5	224	static inline u64 perf_mmap__read_head(struct perf_mmap *mm)
0479b8b9 DA	225	{
0479b8b9 DA	226	struct perf_event_mmap_page *pc = mm->base;
7b8283b5	227	u64 head = ACCESS_ONCE(pc->data_head);
0479b8b9 DA	228	rmb();
	229	return head;
	230	}
	231
7b8283b5	232	static inline void perf_mmap__write_tail(struct perf_mmap *md, u64 tail)
0479b8b9 DA	233	{
	234	struct perf_event_mmap_page *pc = md->base;
	235
	236	/*
	237	* ensure all reads are done before we write the tail out.
	238	*/
a94d342b	239	mb();
0479b8b9 DA	240	pc->data_tail = tail;
	241	}
	242
c09ec622	243	bool perf_evlist__can_select_event(struct perf_evlist evlist, const char str);
a025e4f0 AH	244	void perf_evlist__to_front(struct perf_evlist *evlist,
	245	struct perf_evsel *move_evsel);
	246
0050f7aa ACM	247	/**
	248	* __evlist__for_each - iterate thru all the evsels
	249	* @list: list_head instance to iterate
	250	* @evsel: struct evsel iterator
	251	*/
	252	#define __evlist__for_each(list, evsel) \
	253	list_for_each_entry(evsel, list, node)
	254
	255	/**
	256	* evlist__for_each - iterate thru all the evsels
	257	* @evlist: evlist instance to iterate
	258	* @evsel: struct evsel iterator
	259	*/
	260	#define evlist__for_each(evlist, evsel) \
	261	__evlist__for_each(&(evlist)->entries, evsel)
	262
	263	/**
	264	* __evlist__for_each_continue - continue iteration thru all the evsels
	265	* @list: list_head instance to iterate
	266	* @evsel: struct evsel iterator
	267	*/
	268	#define __evlist__for_each_continue(list, evsel) \
	269	list_for_each_entry_continue(evsel, list, node)
	270
	271	/**
	272	* evlist__for_each_continue - continue iteration thru all the evsels
	273	* @evlist: evlist instance to iterate
	274	* @evsel: struct evsel iterator
	275	*/
	276	#define evlist__for_each_continue(evlist, evsel) \
	277	__evlist__for_each_continue(&(evlist)->entries, evsel)
	278
	279	/**
	280	* __evlist__for_each_reverse - iterate thru all the evsels in reverse order
	281	* @list: list_head instance to iterate
	282	* @evsel: struct evsel iterator
	283	*/
	284	#define __evlist__for_each_reverse(list, evsel) \
	285	list_for_each_entry_reverse(evsel, list, node)
	286
	287	/**
	288	* evlist__for_each_reverse - iterate thru all the evsels in reverse order
	289	* @evlist: evlist instance to iterate
	290	* @evsel: struct evsel iterator
	291	*/
	292	#define evlist__for_each_reverse(evlist, evsel) \
	293	__evlist__for_each_reverse(&(evlist)->entries, evsel)
	294
	295	/**
	296	* __evlist__for_each_safe - safely iterate thru all the evsels
	297	* @list: list_head instance to iterate
	298	* @tmp: struct evsel temp iterator
	299	* @evsel: struct evsel iterator
	300	*/
	301	#define __evlist__for_each_safe(list, tmp, evsel) \
	302	list_for_each_entry_safe(evsel, tmp, list, node)
	303
	304	/**
	305	* evlist__for_each_safe - safely iterate thru all the evsels
	306	* @evlist: evlist instance to iterate
	307	* @evsel: struct evsel iterator
	308	* @tmp: struct evsel temp iterator
	309	*/
	310	#define evlist__for_each_safe(evlist, tmp, evsel) \
311	__evlist__for_each_safe(&(evlist)->entries, tmp, evsel)
c09ec622	312
60b0896c AH	313	void perf_evlist__set_tracking_event(struct perf_evlist *evlist,
60b0896c AH	314	struct perf_evsel *tracking_evsel);
45cf6c33 JO	315
45cf6c33 JO	316	void perf_event_attr__set_max_precise_ip(struct perf_event_attr *attr);
7630b3e2 WN	317
	318	struct perf_evsel *
	319	perf_evlist__find_evsel_by_str(struct perf_evlist evlist, const char str);
361c99a6	320	#endif /* __PERF_EVLIST_H */