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 *trigger; 10 char enabled; 11 char trigger_enabled; 12 }; 13 14 struct trace_instance { 15 struct tracefs_instance *inst; 16 struct tep_handle *tep; 17 struct trace_seq *seq; 18 }; 19 20 int trace_instance_init(struct trace_instance *trace, char *tool_name); 21 int trace_instance_start(struct trace_instance *trace); 22 void trace_instance_destroy(struct trace_instance *trace); 23 24 struct trace_seq *get_trace_seq(void); 25 int enable_tracer_by_name(struct tracefs_instance *inst, const char *tracer_name); 26 void disable_tracer(struct tracefs_instance *inst); 27 28 int enable_osnoise(struct trace_instance *trace); 29 int enable_timerlat(struct trace_instance *trace); 30 31 struct tracefs_instance *create_instance(char *instance_name); 32 void destroy_instance(struct tracefs_instance *inst); 33 34 int save_trace_to_file(struct tracefs_instance *inst, const char *filename); 35 int collect_registered_events(struct tep_event *tep, struct tep_record *record, 36 int cpu, void *context); 37 38 struct trace_events *trace_event_alloc(const char *event_string); 39 void trace_events_disable(struct trace_instance *instance, 40 struct trace_events *events); 41 void trace_events_destroy(struct trace_instance *instance, 42 struct trace_events *events); 43 int trace_events_enable(struct trace_instance *instance, 44 struct trace_events *events); 45 46 int trace_event_add_trigger(struct trace_events *event, char *trigger); 47