trace.h (1705B)
1// SPDX-License-Identifier: GPL-2.0 2#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);