52 lines · c
1// SPDX-License-Identifier: GPL-2.02#include <tracefs.h>3#include <stddef.h>4 5struct trace_events {6 struct trace_events *next;7 char *system;8 char *event;9 char *filter;10 char *trigger;11 char enabled;12 char filter_enabled;13 char trigger_enabled;14};15 16struct trace_instance {17 struct tracefs_instance *inst;18 struct tep_handle *tep;19 struct trace_seq *seq;20};21 22int trace_instance_init(struct trace_instance *trace, char *tool_name);23int trace_instance_start(struct trace_instance *trace);24void trace_instance_destroy(struct trace_instance *trace);25 26struct trace_seq *get_trace_seq(void);27int enable_tracer_by_name(struct tracefs_instance *inst, const char *tracer_name);28void disable_tracer(struct tracefs_instance *inst);29 30int enable_osnoise(struct trace_instance *trace);31int enable_timerlat(struct trace_instance *trace);32 33struct tracefs_instance *create_instance(char *instance_name);34void destroy_instance(struct tracefs_instance *inst);35 36int save_trace_to_file(struct tracefs_instance *inst, const char *filename);37int collect_registered_events(struct tep_event *tep, struct tep_record *record,38 int cpu, void *context);39 40struct trace_events *trace_event_alloc(const char *event_string);41void trace_events_disable(struct trace_instance *instance,42 struct trace_events *events);43void trace_events_destroy(struct trace_instance *instance,44 struct trace_events *events);45int trace_events_enable(struct trace_instance *instance,46 struct trace_events *events);47 48int trace_event_add_filter(struct trace_events *event, char *filter);49int trace_event_add_trigger(struct trace_events *event, char *trigger);50int trace_is_off(struct trace_instance *tool, struct trace_instance *trace);51int trace_set_buffer_size(struct trace_instance *trace, int size);52