[mirror_ubuntu-artful-kernel.git] / tools / perf / util / evsel.h

#ifndef __PERF_EVSEL_H
#define __PERF_EVSEL_H 1

#include <linux/list.h>
#include <stdbool.h>
#include <stddef.h>
#include <linux/perf_event.h>
#include <linux/types.h>
#include "xyarray.h"
#include "symbol.h"
#include "cpumap.h"
#include "stat.h"

struct perf_evsel;

/*
 * Per fd, to map back from PERF_SAMPLE_ID to evsel, only used when there are
 * more than one entry in the evlist.
 */
struct perf_sample_id {
	struct hlist_node 	node;
	u64		 	id;
	struct perf_evsel	*evsel;
	int			idx;
	int			cpu;
	pid_t			tid;

	/* Holds total ID period value for PERF_SAMPLE_READ processing. */
	u64			period;
};

struct cgroup_sel;

/*
 * The 'struct perf_evsel_config_term' is used to pass event
 * specific configuration data to perf_evsel__config routine.
 * It is allocated within event parsing and attached to
 * perf_evsel::config_terms list head.
*/
enum {
	PERF_EVSEL__CONFIG_TERM_PERIOD,
	PERF_EVSEL__CONFIG_TERM_MAX,
};

struct perf_evsel_config_term {
	struct list_head	list;
	int	type;
	union {
		u64	period;
	} val;
};

/** struct perf_evsel - event selector
 *
 * @name - Can be set to retain the original event name passed by the user,
 *         so that when showing results in tools such as 'perf stat', we
 *         show the name used, not some alias.
 * @id_pos: the position of the event id (PERF_SAMPLE_ID or
 *          PERF_SAMPLE_IDENTIFIER) in a sample event i.e. in the array of
 *          struct sample_event
 * @is_pos: the position (counting backwards) of the event id (PERF_SAMPLE_ID or
 *          PERF_SAMPLE_IDENTIFIER) in a non-sample event i.e. if sample_id_all
 *          is used there is an id sample appended to non-sample events
 * @priv:   And what is in its containing unnamed union are tool specific
 */
struct perf_evsel {
	struct list_head	node;
	struct perf_event_attr	attr;
	char			*filter;
	struct xyarray		*fd;
	struct xyarray		*sample_id;
	u64			*id;
	struct perf_counts	*counts;
	struct perf_counts	*prev_raw_counts;
	int			idx;
	u32			ids;
	char			*name;
	double			scale;
	const char		*unit;
	struct event_format	*tp_format;
	union {
		void		*priv;
		off_t		id_offset;
		u64		db_id;
	};
	struct cgroup_sel	*cgrp;
	void			*handler;
	struct cpu_map		*cpus;
	struct thread_map	*threads;
	unsigned int		sample_size;
	int			id_pos;
	int			is_pos;
	bool			snapshot;
	bool 			supported;
	bool 			needs_swap;
	bool			no_aux_samples;
	bool			immediate;
	bool			system_wide;
	bool			tracking;
	bool			per_pkg;
	/* parse modifier helper */
	int			exclude_GH;
	int			nr_members;
	int			sample_read;
	unsigned long		*per_pkg_mask;
	struct perf_evsel	*leader;
	char			*group_name;
	bool			cmdline_group_boundary;
	struct list_head	config_terms;
};

union u64_swap {
	u64 val64;
	u32 val32[2];
};

struct cpu_map;
struct target;
struct thread_map;
struct perf_evlist;
struct record_opts;

static inline struct cpu_map *perf_evsel__cpus(struct perf_evsel *evsel)
{
	return evsel->cpus;
}

static inline int perf_evsel__nr_cpus(struct perf_evsel *evsel)
{
	return perf_evsel__cpus(evsel)->nr;
}

void perf_counts_values__scale(struct perf_counts_values *count,
			       bool scale, s8 *pscaled);

void perf_evsel__compute_deltas(struct perf_evsel *evsel, int cpu, int thread,
				struct perf_counts_values *count);

int perf_evsel__object_config(size_t object_size,
			      int (*init)(struct perf_evsel *evsel),
			      void (*fini)(struct perf_evsel *evsel));

struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx);

static inline struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr)
{
	return perf_evsel__new_idx(attr, 0);
}

struct perf_evsel *perf_evsel__newtp_idx(const char *sys, const char *name, int idx);

static inline struct perf_evsel *perf_evsel__newtp(const char *sys, const char *name)
{
	return perf_evsel__newtp_idx(sys, name, 0);
}

struct event_format *event_format__new(const char *sys, const char *name);

void perf_evsel__init(struct perf_evsel *evsel,
		      struct perf_event_attr *attr, int idx);
void perf_evsel__exit(struct perf_evsel *evsel);
void perf_evsel__delete(struct perf_evsel *evsel);

void perf_evsel__config(struct perf_evsel *evsel,
			struct record_opts *opts);

int __perf_evsel__sample_size(u64 sample_type);
void perf_evsel__calc_id_pos(struct perf_evsel *evsel);

bool perf_evsel__is_cache_op_valid(u8 type, u8 op);

#define PERF_EVSEL__MAX_ALIASES 8

extern const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX]
				       [PERF_EVSEL__MAX_ALIASES];
extern const char *perf_evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX]
					  [PERF_EVSEL__MAX_ALIASES];
extern const char *perf_evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
					      [PERF_EVSEL__MAX_ALIASES];
extern const char *perf_evsel__hw_names[PERF_COUNT_HW_MAX];
extern const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX];
int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result,
					    char *bf, size_t size);
const char *perf_evsel__name(struct perf_evsel *evsel);

const char *perf_evsel__group_name(struct perf_evsel *evsel);
int perf_evsel__group_desc(struct perf_evsel *evsel, char *buf, size_t size);

int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);

void __perf_evsel__set_sample_bit(struct perf_evsel *evsel,
				  enum perf_event_sample_format bit);
void __perf_evsel__reset_sample_bit(struct perf_evsel *evsel,
				    enum perf_event_sample_format bit);

#define perf_evsel__set_sample_bit(evsel, bit) \
	__perf_evsel__set_sample_bit(evsel, PERF_SAMPLE_##bit)

#define perf_evsel__reset_sample_bit(evsel, bit) \
	__perf_evsel__reset_sample_bit(evsel, PERF_SAMPLE_##bit)

void perf_evsel__set_sample_id(struct perf_evsel *evsel,
			       bool use_sample_identifier);

int perf_evsel__set_filter(struct perf_evsel *evsel, const char *filter);
int perf_evsel__append_filter(struct perf_evsel *evsel,
			      const char *op, const char *filter);
int perf_evsel__apply_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
			     const char *filter);
int perf_evsel__enable(struct perf_evsel *evsel, int ncpus, int nthreads);

int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
			     struct cpu_map *cpus);
int perf_evsel__open_per_thread(struct perf_evsel *evsel,
				struct thread_map *threads);
int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
		     struct thread_map *threads);
void perf_evsel__close(struct perf_evsel *evsel, int ncpus, int nthreads);

struct perf_sample;

void *perf_evsel__rawptr(struct perf_evsel *evsel, struct perf_sample *sample,
			 const char *name);
u64 perf_evsel__intval(struct perf_evsel *evsel, struct perf_sample *sample,
		       const char *name);

static inline char *perf_evsel__strval(struct perf_evsel *evsel,
				       struct perf_sample *sample,
				       const char *name)
{
	return perf_evsel__rawptr(evsel, sample, name);
}

struct format_field;

struct format_field *perf_evsel__field(struct perf_evsel *evsel, const char *name);

#define perf_evsel__match(evsel, t, c)		\
	(evsel->attr.type == PERF_TYPE_##t &&	\
	 evsel->attr.config == PERF_COUNT_##c)

static inline bool perf_evsel__match2(struct perf_evsel *e1,
				      struct perf_evsel *e2)
{
	return (e1->attr.type == e2->attr.type) &&
	       (e1->attr.config == e2->attr.config);
}

#define perf_evsel__cmp(a, b)			\
	((a) &&					\
	 (b) &&					\
	 (a)->attr.type == (b)->attr.type &&	\
	 (a)->attr.config == (b)->attr.config)

int perf_evsel__read(struct perf_evsel *evsel, int cpu, int thread,
		     struct perf_counts_values *count);

int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
			      int cpu, int thread, bool scale);

/**
 * perf_evsel__read_on_cpu - Read out the results on a CPU and thread
 *
 * @evsel - event selector to read value
 * @cpu - CPU of interest
 * @thread - thread of interest
 */
static inline int perf_evsel__read_on_cpu(struct perf_evsel *evsel,
					  int cpu, int thread)
{
	return __perf_evsel__read_on_cpu(evsel, cpu, thread, false);
}

/**
 * perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
 *
 * @evsel - event selector to read value
 * @cpu - CPU of interest
 * @thread - thread of interest
 */
static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel,
						 int cpu, int thread)
{
	return __perf_evsel__read_on_cpu(evsel, cpu, thread, true);
}

int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
			     struct perf_sample *sample);

static inline struct perf_evsel *perf_evsel__next(struct perf_evsel *evsel)
{
	return list_entry(evsel->node.next, struct perf_evsel, node);
}

static inline struct perf_evsel *perf_evsel__prev(struct perf_evsel *evsel)
{
	return list_entry(evsel->node.prev, struct perf_evsel, node);
}

/**
 * perf_evsel__is_group_leader - Return whether given evsel is a leader event
 *
 * @evsel - evsel selector to be tested
 *
 * Return %true if @evsel is a group leader or a stand-alone event
 */
static inline bool perf_evsel__is_group_leader(const struct perf_evsel *evsel)
{
	return evsel->leader == evsel;
}

/**
 * perf_evsel__is_group_event - Return whether given evsel is a group event
 *
 * @evsel - evsel selector to be tested
 *
 * Return %true iff event group view is enabled and @evsel is a actual group
 * leader which has other members in the group
 */
static inline bool perf_evsel__is_group_event(struct perf_evsel *evsel)
{
	if (!symbol_conf.event_group)
		return false;

	return perf_evsel__is_group_leader(evsel) && evsel->nr_members > 1;
}

/**
 * perf_evsel__is_function_event - Return whether given evsel is a function
 * trace event
 *
 * @evsel - evsel selector to be tested
 *
 * Return %true if event is function trace event
 */
static inline bool perf_evsel__is_function_event(struct perf_evsel *evsel)
{
#define FUNCTION_EVENT "ftrace:function"

	return evsel->name &&
	       !strncmp(FUNCTION_EVENT, evsel->name, sizeof(FUNCTION_EVENT));

#undef FUNCTION_EVENT
}

struct perf_attr_details {
	bool freq;
	bool verbose;
	bool event_group;
	bool force;
};

int perf_evsel__fprintf(struct perf_evsel *evsel,
			struct perf_attr_details *details, FILE *fp);

bool perf_evsel__fallback(struct perf_evsel *evsel, int err,
			  char *msg, size_t msgsize);
int perf_evsel__open_strerror(struct perf_evsel *evsel, struct target *target,
			      int err, char *msg, size_t size);

static inline int perf_evsel__group_idx(struct perf_evsel *evsel)
{
	return evsel->idx - evsel->leader->idx;
}

#define for_each_group_member(_evsel, _leader) 					\
for ((_evsel) = list_entry((_leader)->node.next, struct perf_evsel, node); 	\
     (_evsel) && (_evsel)->leader == (_leader);					\
     (_evsel) = list_entry((_evsel)->node.next, struct perf_evsel, node))

static inline bool has_branch_callstack(struct perf_evsel *evsel)
{
	return evsel->attr.branch_sample_type & PERF_SAMPLE_BRANCH_CALL_STACK;
}

typedef int (*attr__fprintf_f)(FILE *, const char *, const char *, void *);

int perf_event_attr__fprintf(FILE *fp, struct perf_event_attr *attr,
			     attr__fprintf_f attr__fprintf, void *priv);

#endif /* __PERF_EVSEL_H */
Commit	Line	Data
69aad6f1 ACM	1	#ifndef __PERF_EVSEL_H
	2	#define __PERF_EVSEL_H 1
	3
	4	#include <linux/list.h>
c52b12ed	5	#include <stdbool.h>
07ac002f	6	#include <stddef.h>
d2709c7c	7	#include <linux/perf_event.h>
d944c4ee	8	#include <linux/types.h>
69aad6f1	9	#include "xyarray.h"
759ff497	10	#include "symbol.h"
a22e99cd	11	#include "cpumap.h"
1ac77e1c	12	#include "stat.h"
69aad6f1	13
70db7533 ACM	14	struct perf_evsel;
	15
	16	/*
	17	* Per fd, to map back from PERF_SAMPLE_ID to evsel, only used when there are
	18	* more than one entry in the evlist.
	19	*/
	20	struct perf_sample_id {
	21	struct hlist_node node;
	22	u64 id;
	23	struct perf_evsel *evsel;
3c659eed AH	24	int idx;
	25	int cpu;
	26	pid_t tid;
e4caec0d JO	27
	28	/* Holds total ID period value for PERF_SAMPLE_READ processing. */
	29	u64 period;
70db7533 ACM	30	};
70db7533 ACM	31
f14d5707 ACM	32	struct cgroup_sel;
f14d5707 ACM	33
930a2e29 JO	34	/*
	35	* The 'struct perf_evsel_config_term' is used to pass event
	36	* specific configuration data to perf_evsel__config routine.
	37	* It is allocated within event parsing and attached to
	38	* perf_evsel::config_terms list head.
	39	*/
	40	enum {
ee4c7588	41	PERF_EVSEL__CONFIG_TERM_PERIOD,
930a2e29 JO	42	PERF_EVSEL__CONFIG_TERM_MAX,
	43	};
	44
	45	struct perf_evsel_config_term {
	46	struct list_head list;
	47	int type;
	48	union {
	49	u64 period;
	50	} val;
	51	};
	52
f0c55bcf SE	53	/** struct perf_evsel - event selector
	54	*
	55	* @name - Can be set to retain the original event name passed by the user,
	56	* so that when showing results in tools such as 'perf stat', we
	57	* show the name used, not some alias.
75562573 AH	58	* @id_pos: the position of the event id (PERF_SAMPLE_ID or
	59	* PERF_SAMPLE_IDENTIFIER) in a sample event i.e. in the array of
	60	* struct sample_event
	61	* @is_pos: the position (counting backwards) of the event id (PERF_SAMPLE_ID or
	62	* PERF_SAMPLE_IDENTIFIER) in a non-sample event i.e. if sample_id_all
	63	* is used there is an id sample appended to non-sample events
0db15b1e	64	* @priv: And what is in its containing unnamed union are tool specific
f0c55bcf	65	*/
69aad6f1 ACM	66	struct perf_evsel {
	67	struct list_head node;
	68	struct perf_event_attr attr;
	69	char *filter;
	70	struct xyarray *fd;
a91e5431 ACM	71	struct xyarray *sample_id;
a91e5431 ACM	72	u64 *id;
c52b12ed	73	struct perf_counts *counts;
c7a79c47	74	struct perf_counts *prev_raw_counts;
69aad6f1	75	int idx;
f4d83436	76	u32 ids;
f0c55bcf	77	char *name;
410136f5 SE	78	double scale;
410136f5 SE	79	const char *unit;
fcf65bf1	80	struct event_format *tp_format;
a91e5431 ACM	81	union {
	82	void *priv;
	83	off_t id_offset;
0db15b1e	84	u64 db_id;
a91e5431	85	};
023695d9	86	struct cgroup_sel *cgrp;
744a9719	87	void *handler;
7ae92e74	88	struct cpu_map *cpus;
578e91ec	89	struct thread_map *threads;
bde09467	90	unsigned int sample_size;
75562573 AH	91	int id_pos;
75562573 AH	92	int is_pos;
86066064	93	bool snapshot;
2cee77c4	94	bool supported;
0807d2d8	95	bool needs_swap;
6ff1ce76	96	bool no_aux_samples;
2afd2bcf	97	bool immediate;
bf8e8f4b	98	bool system_wide;
60b0896c	99	bool tracking;
044330c1	100	bool per_pkg;
f5b1135b JO	101	/* parse modifier helper */
f5b1135b JO	102	int exclude_GH;
97f63e4a	103	int nr_members;
3c176311	104	int sample_read;
86066064	105	unsigned long *per_pkg_mask;
6a4bb04c JO	106	struct perf_evsel *leader;
6a4bb04c JO	107	char *group_name;
15bfd2cc	108	bool cmdline_group_boundary;
930a2e29	109	struct list_head config_terms;
69aad6f1 ACM	110	};
69aad6f1 ACM	111
88080ce7 BP	112	union u64_swap {
	113	u64 val64;
	114	u32 val32[2];
	115	};
	116
86bd5e86	117	struct cpu_map;
80b2210c	118	struct target;
86bd5e86	119	struct thread_map;
70082dd9	120	struct perf_evlist;
b4006796	121	struct record_opts;
86bd5e86	122
a22e99cd JO	123	static inline struct cpu_map perf_evsel__cpus(struct perf_evsel evsel)
	124	{
	125	return evsel->cpus;
	126	}
	127
	128	static inline int perf_evsel__nr_cpus(struct perf_evsel *evsel)
	129	{
	130	return perf_evsel__cpus(evsel)->nr;
	131	}
	132
13112bbf JO	133	void perf_counts_values__scale(struct perf_counts_values *count,
	134	bool scale, s8 *pscaled);
	135
a6fa0038	136	void perf_evsel__compute_deltas(struct perf_evsel *evsel, int cpu, int thread,
857a94a2 JO	137	struct perf_counts_values *count);
857a94a2 JO	138
ce8ccff5 ACM	139	int perf_evsel__object_config(size_t object_size,
	140	int (init)(struct perf_evsel evsel),
	141	void (fini)(struct perf_evsel evsel));
	142
ef503831 ACM	143	struct perf_evsel perf_evsel__new_idx(struct perf_event_attr attr, int idx);
	144
	145	static inline struct perf_evsel perf_evsel__new(struct perf_event_attr attr)
	146	{
	147	return perf_evsel__new_idx(attr, 0);
	148	}
	149
	150	struct perf_evsel perf_evsel__newtp_idx(const char sys, const char *name, int idx);
	151
	152	static inline struct perf_evsel perf_evsel__newtp(const char sys, const char *name)
	153	{
	154	return perf_evsel__newtp_idx(sys, name, 0);
	155	}
201b7334 ACM	156
	157	struct event_format event_format__new(const char sys, const char *name);
	158
ef1d1af2 ACM	159	void perf_evsel__init(struct perf_evsel *evsel,
	160	struct perf_event_attr *attr, int idx);
	161	void perf_evsel__exit(struct perf_evsel *evsel);
69aad6f1 ACM	162	void perf_evsel__delete(struct perf_evsel *evsel);
69aad6f1 ACM	163
0f82ebc4	164	void perf_evsel__config(struct perf_evsel *evsel,
b4006796	165	struct record_opts *opts);
0f82ebc4	166
75562573 AH	167	int __perf_evsel__sample_size(u64 sample_type);
	168	void perf_evsel__calc_id_pos(struct perf_evsel *evsel);
	169
0b668bc9 ACM	170	bool perf_evsel__is_cache_op_valid(u8 type, u8 op);
	171
	172	#define PERF_EVSEL__MAX_ALIASES 8
	173
	174	extern const char *perf_evsel__hw_cache[PERF_COUNT_HW_CACHE_MAX]
	175	[PERF_EVSEL__MAX_ALIASES];
	176	extern const char *perf_evsel__hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX]
	177	[PERF_EVSEL__MAX_ALIASES];
8ad7013b ACM	178	extern const char *perf_evsel__hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
	179	[PERF_EVSEL__MAX_ALIASES];
	180	extern const char *perf_evsel__hw_names[PERF_COUNT_HW_MAX];
	181	extern const char *perf_evsel__sw_names[PERF_COUNT_SW_MAX];
0b668bc9 ACM	182	int __perf_evsel__hw_cache_type_op_res_name(u8 type, u8 op, u8 result,
0b668bc9 ACM	183	char *bf, size_t size);
7289f83c	184	const char perf_evsel__name(struct perf_evsel evsel);
410136f5	185
717e263f NK	186	const char perf_evsel__group_name(struct perf_evsel evsel);
717e263f NK	187	int perf_evsel__group_desc(struct perf_evsel evsel, char buf, size_t size);
c410431c	188
70db7533	189	int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
c52b12ed	190	void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
69aad6f1	191
7be5ebe8 ACM	192	void __perf_evsel__set_sample_bit(struct perf_evsel *evsel,
	193	enum perf_event_sample_format bit);
	194	void __perf_evsel__reset_sample_bit(struct perf_evsel *evsel,
	195	enum perf_event_sample_format bit);
	196
	197	#define perf_evsel__set_sample_bit(evsel, bit) \
	198	__perf_evsel__set_sample_bit(evsel, PERF_SAMPLE_##bit)
	199
	200	#define perf_evsel__reset_sample_bit(evsel, bit) \
	201	__perf_evsel__reset_sample_bit(evsel, PERF_SAMPLE_##bit)
	202
75562573 AH	203	void perf_evsel__set_sample_id(struct perf_evsel *evsel,
75562573 AH	204	bool use_sample_identifier);
7a5a5ca5	205
12467ae4	206	int perf_evsel__set_filter(struct perf_evsel evsel, const char filter);
64ec84f5 ACM	207	int perf_evsel__append_filter(struct perf_evsel *evsel,
64ec84f5 ACM	208	const char op, const char filter);
f47805a2 ACM	209	int perf_evsel__apply_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
f47805a2 ACM	210	const char *filter);
e2407bef	211	int perf_evsel__enable(struct perf_evsel *evsel, int ncpus, int nthreads);
745cefc5	212
f08199d3	213	int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
6a4bb04c	214	struct cpu_map *cpus);
f08199d3	215	int perf_evsel__open_per_thread(struct perf_evsel *evsel,
6a4bb04c	216	struct thread_map *threads);
f08199d3	217	int perf_evsel__open(struct perf_evsel evsel, struct cpu_map cpus,
6a4bb04c	218	struct thread_map *threads);
727ab04e	219	void perf_evsel__close(struct perf_evsel *evsel, int ncpus, int nthreads);
48290609	220
5555ded4 ACM	221	struct perf_sample;
5555ded4 ACM	222
5d2074ea	223	void perf_evsel__rawptr(struct perf_evsel evsel, struct perf_sample *sample,
5555ded4 ACM	224	const char *name);
	225	u64 perf_evsel__intval(struct perf_evsel evsel, struct perf_sample sample,
	226	const char *name);
	227
5d2074ea ACM	228	static inline char perf_evsel__strval(struct perf_evsel evsel,
	229	struct perf_sample *sample,
	230	const char *name)
	231	{
	232	return perf_evsel__rawptr(evsel, sample, name);
	233	}
	234
efd2b924 ACM	235	struct format_field;
	236
	237	struct format_field perf_evsel__field(struct perf_evsel evsel, const char *name);
	238
daec78a0 ACM	239	#define perf_evsel__match(evsel, t, c) \
	240	(evsel->attr.type == PERF_TYPE_##t && \
	241	evsel->attr.config == PERF_COUNT_##c)
	242
863e451f JO	243	static inline bool perf_evsel__match2(struct perf_evsel *e1,
	244	struct perf_evsel *e2)
	245	{
	246	return (e1->attr.type == e2->attr.type) &&
	247	(e1->attr.config == e2->attr.config);
	248	}
	249
4cabc3d1 AK	250	#define perf_evsel__cmp(a, b) \
	251	((a) && \
	252	(b) && \
	253	(a)->attr.type == (b)->attr.type && \
	254	(a)->attr.config == (b)->attr.config)
	255
f99f4719 JO	256	int perf_evsel__read(struct perf_evsel *evsel, int cpu, int thread,
	257	struct perf_counts_values *count);
	258
c52b12ed ACM	259	int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
	260	int cpu, int thread, bool scale);
	261
	262	/**
	263	* perf_evsel__read_on_cpu - Read out the results on a CPU and thread
	264	*
	265	* @evsel - event selector to read value
	266	* @cpu - CPU of interest
	267	* @thread - thread of interest
	268	*/
	269	static inline int perf_evsel__read_on_cpu(struct perf_evsel *evsel,
	270	int cpu, int thread)
	271	{
	272	return __perf_evsel__read_on_cpu(evsel, cpu, thread, false);
	273	}
	274
	275	/**
	276	* perf_evsel__read_on_cpu_scaled - Read out the results on a CPU and thread, scaled
	277	*
	278	* @evsel - event selector to read value
	279	* @cpu - CPU of interest
	280	* @thread - thread of interest
	281	*/
	282	static inline int perf_evsel__read_on_cpu_scaled(struct perf_evsel *evsel,
	283	int cpu, int thread)
	284	{
	285	return __perf_evsel__read_on_cpu(evsel, cpu, thread, true);
	286	}
	287
a3f698fe	288	int perf_evsel__parse_sample(struct perf_evsel evsel, union perf_event event,
0807d2d8	289	struct perf_sample *sample);
0c21f736 ACM	290
	291	static inline struct perf_evsel perf_evsel__next(struct perf_evsel evsel)
	292	{
	293	return list_entry(evsel->node.next, struct perf_evsel, node);
	294	}
07ac002f	295
d87fcb4a ACM	296	static inline struct perf_evsel perf_evsel__prev(struct perf_evsel evsel)
	297	{
	298	return list_entry(evsel->node.prev, struct perf_evsel, node);
	299	}
	300
759ff497 NK	301	/**
	302	* perf_evsel__is_group_leader - Return whether given evsel is a leader event
	303	*
	304	* @evsel - evsel selector to be tested
	305	*
	306	* Return %true if @evsel is a group leader or a stand-alone event
	307	*/
823254ed	308	static inline bool perf_evsel__is_group_leader(const struct perf_evsel *evsel)
07ac002f	309	{
823254ed	310	return evsel->leader == evsel;
07ac002f	311	}
0698aedd	312
759ff497 NK	313	/**
	314	* perf_evsel__is_group_event - Return whether given evsel is a group event
	315	*
	316	* @evsel - evsel selector to be tested
	317	*
	318	* Return %true iff event group view is enabled and @evsel is a actual group
	319	* leader which has other members in the group
	320	*/
	321	static inline bool perf_evsel__is_group_event(struct perf_evsel *evsel)
	322	{
	323	if (!symbol_conf.event_group)
	324	return false;
	325
	326	return perf_evsel__is_group_leader(evsel) && evsel->nr_members > 1;
	327	}
	328
6bedfab6 JO	329	/**
	330	* perf_evsel__is_function_event - Return whether given evsel is a function
	331	* trace event
	332	*
	333	* @evsel - evsel selector to be tested
	334	*
	335	* Return %true if event is function trace event
	336	*/
	337	static inline bool perf_evsel__is_function_event(struct perf_evsel *evsel)
	338	{
	339	#define FUNCTION_EVENT "ftrace:function"
	340
	341	return evsel->name &&
	342	!strncmp(FUNCTION_EVENT, evsel->name, sizeof(FUNCTION_EVENT));
	343
	344	#undef FUNCTION_EVENT
	345	}
	346
0698aedd ACM	347	struct perf_attr_details {
	348	bool freq;
	349	bool verbose;
e35ef355	350	bool event_group;
9e3b6ec1	351	bool force;
0698aedd ACM	352	};
	353
	354	int perf_evsel__fprintf(struct perf_evsel *evsel,
	355	struct perf_attr_details details, FILE fp);
c0a54341 ACM	356
	357	bool perf_evsel__fallback(struct perf_evsel *evsel, int err,
	358	char *msg, size_t msgsize);
602ad878	359	int perf_evsel__open_strerror(struct perf_evsel evsel, struct target target,
56e52e85	360	int err, char *msg, size_t size);
97f63e4a NK	361
	362	static inline int perf_evsel__group_idx(struct perf_evsel *evsel)
	363	{
	364	return evsel->idx - evsel->leader->idx;
	365	}
717e263f NK	366
	367	#define for_each_group_member(_evsel, _leader) \
	368	for ((_evsel) = list_entry((_leader)->node.next, struct perf_evsel, node); \
	369	(_evsel) && (_evsel)->leader == (_leader); \
	370	(_evsel) = list_entry((_evsel)->node.next, struct perf_evsel, node))
	371
384b6055 KL	372	static inline bool has_branch_callstack(struct perf_evsel *evsel)
	373	{
	374	return evsel->attr.branch_sample_type & PERF_SAMPLE_BRANCH_CALL_STACK;
	375	}
2c5e8c52 PZ	376
	377	typedef int (attr__fprintf_f)(FILE , const char , const char , void *);
	378
	379	int perf_event_attr__fprintf(FILE fp, struct perf_event_attr attr,
	380	attr__fprintf_f attr__fprintf, void *priv);
	381
69aad6f1	382	#endif /* __PERF_EVSEL_H */