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