1// SPDX-License-Identifier: GPL-2.0
 2#ifndef __TRACE_SYNTH_H
 3#define __TRACE_SYNTH_H
 4
 5#include "trace_dynevent.h"
 6
 7#define SYNTH_SYSTEM		"synthetic"
 8#define SYNTH_FIELDS_MAX	64
 9
10#define STR_VAR_LEN_MAX		MAX_FILTER_STR_VAL /* must be multiple of sizeof(u64) */
11
12struct synth_field {
13	char *type;
14	char *name;
15	size_t size;
16	unsigned int offset;
17	unsigned int field_pos;
18	bool is_signed;
19	bool is_string;
20	bool is_dynamic;
21};
22
23struct synth_event {
24	struct dyn_event			devent;
25	int					ref;
26	char					*name;
27	struct synth_field			**fields;
28	unsigned int				n_fields;
29	struct synth_field			**dynamic_fields;
30	unsigned int				n_dynamic_fields;
31	unsigned int				n_u64;
32	struct trace_event_class		class;
33	struct trace_event_call			call;
34	struct tracepoint			*tp;
35	struct module				*mod;
36};
37
38extern struct synth_event *find_synth_event(const char *name);
39
40#endif /* __TRACE_SYNTH_H */