// SPDX-License-Identifier: GPL-2.0 #include <tracefs.h> #include <stddef.h> struct trace_instance { struct tracefs_instance *inst; struct tep_handle *tep; struct trace_seq *seq; }; int trace_instance_init(struct trace_instance *trace, char *tool_name); int trace_instance_start(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); int enable_osnoise(struct trace_instance *trace); int enable_timerlat(struct trace_instance *trace); 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);