// SPDX-License-Identifier: GPL-2.0#include <tracefs.h>#include <stddef.h> struct trace_events {	struct trace_events *next;	char *system;	char *event;	char *filter;	char *trigger;	char enabled;	char filter_enabled;	char trigger_enabled;}; struct trace_instance {	struct tracefs_instance		*inst;	struct tep_handle		*tep;	struct trace_seq		*seq;	unsigned long long		missed_events;	unsigned long long		processed_events;}; int trace_instance_init(struct trace_instance *trace, char *tool_name);int trace_instance_start(struct trace_instance *trace);int trace_instance_stop(struct trace_instance *trace);void trace_instance_destroy(struct trace_instance *trace); struct trace_seq *get_trace_seq(void);int enable_tracer_by_name(struct tracefs_instance *inst, const char *tracer_name);void disable_tracer(struct tracefs_instance *inst); struct tracefs_instance *create_instance(char *instance_name);void destroy_instance(struct tracefs_instance *inst); int save_trace_to_file(struct tracefs_instance *inst, const char *filename);int collect_registered_events(struct tep_event *tep, struct tep_record *record,			      int cpu, void *context); struct trace_events *trace_event_alloc(const char *event_string);void trace_events_disable(struct trace_instance *instance,			  struct trace_events *events);void trace_events_destroy(struct trace_instance *instance,			  struct trace_events *events);int trace_events_enable(struct trace_instance *instance,			  struct trace_events *events); void trace_event_add_filter(struct trace_events *event, char *filter);void trace_event_add_trigger(struct trace_events *event, char *trigger);int trace_set_buffer_size(struct trace_instance *trace, int size);