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
12 struct 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 bool is_stack;
22 };
23
24 struct synth_event {
25 struct dyn_event devent;
26 int ref;
27 char *name;
28 struct synth_field **fields;
29 unsigned int n_fields;
30 struct synth_field **dynamic_fields;
31 unsigned int n_dynamic_fields;
32 unsigned int n_u64;
33 struct trace_event_class class;
34 struct trace_event_call call;
35 struct tracepoint *tp;
36 struct module *mod;
37 };
38
39 extern struct synth_event *find_synth_event(const char *name);
40
41 #endif /* __TRACE_SYNTH_H */
42
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