1// SPDX-License-Identifier: GPL-2.0
 2#include <tracefs.h>
 3#include <stddef.h>
 4
 5struct trace_events {
 6	struct trace_events *next;
 7	char *system;
 8	char *event;
 9	char *filter;
10	char *trigger;
11	char enabled;
12	char filter_enabled;
13	char trigger_enabled;
14};
15
16struct trace_instance {
17	struct tracefs_instance		*inst;
18	struct tep_handle		*tep;
19	struct trace_seq		*seq;
20};
21
22int trace_instance_init(struct trace_instance *trace, char *tool_name);
23int trace_instance_start(struct trace_instance *trace);
24void trace_instance_destroy(struct trace_instance *trace);
25
26struct trace_seq *get_trace_seq(void);
27int enable_tracer_by_name(struct tracefs_instance *inst, const char *tracer_name);
28void disable_tracer(struct tracefs_instance *inst);
29
30int enable_osnoise(struct trace_instance *trace);
31int enable_timerlat(struct trace_instance *trace);
32
33struct tracefs_instance *create_instance(char *instance_name);
34void destroy_instance(struct tracefs_instance *inst);
35
36int save_trace_to_file(struct tracefs_instance *inst, const char *filename);
37int collect_registered_events(struct tep_event *tep, struct tep_record *record,
38			      int cpu, void *context);
39
40struct trace_events *trace_event_alloc(const char *event_string);
41void trace_events_disable(struct trace_instance *instance,
42			  struct trace_events *events);
43void trace_events_destroy(struct trace_instance *instance,
44			  struct trace_events *events);
45int trace_events_enable(struct trace_instance *instance,
46			  struct trace_events *events);
47
48int trace_event_add_filter(struct trace_events *event, char *filter);
49int trace_event_add_trigger(struct trace_events *event, char *trigger);
50int trace_is_off(struct trace_instance *tool, struct trace_instance *trace);