1 // SPDX-License-Identifier: GPL-2.0 2 #include <tracefs.h> 3 #include <stddef.h> 4 5 struct trace_instance { 6 struct tracefs_instance *inst; 7 struct tep_handle *tep; 8 struct trace_seq *seq; 9 }; 10 11 int trace_instance_init(struct trace_instance *trace, char *tool_name); 12 int trace_instance_start(struct trace_instance *trace); 13 void trace_instance_destroy(struct trace_instance *trace); 14 15 struct trace_seq *get_trace_seq(void); 16 int enable_tracer_by_name(struct tracefs_instance *inst, const char *tracer_name); 17 void disable_tracer(struct tracefs_instance *inst); 18 19 int enable_osnoise(struct trace_instance *trace); 20 int enable_timerlat(struct trace_instance *trace); 21 22 struct tracefs_instance *create_instance(char *instance_name); 23 void destroy_instance(struct tracefs_instance *inst); 24 25 int save_trace_to_file(struct tracefs_instance *inst, const char *filename); 26 int collect_registered_events(struct tep_event *tep, struct tep_record *record, 27 int cpu, void *context); 28