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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/tools/tracing/rtla/src/trace.h
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// SPDX-License-Identifier: GPL-2.0

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#include <tracefs.h>

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#include <stddef.h>

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struct trace_events {

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	struct trace_events *next;

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	char *system;

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	char *event;

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	char *filter;

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	char *trigger;

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	char enabled;

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	char filter_enabled;

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	char trigger_enabled;

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};

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struct trace_instance {

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	struct tracefs_instance		*inst;

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	struct tep_handle		*tep;

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	struct trace_seq		*seq;

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	unsigned long long		missed_events;

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	unsigned long long		processed_events;

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};

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int trace_instance_init(struct trace_instance *trace, char *tool_name);

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int trace_instance_start(struct trace_instance *trace);

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int trace_instance_stop(struct trace_instance *trace);

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void trace_instance_destroy(struct trace_instance *trace);

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struct trace_seq *get_trace_seq(void);

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int enable_tracer_by_name(struct tracefs_instance *inst, const char *tracer_name);

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void disable_tracer(struct tracefs_instance *inst);

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int enable_osnoise(struct trace_instance *trace);

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int enable_timerlat(struct trace_instance *trace);

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struct tracefs_instance *create_instance(char *instance_name);

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void destroy_instance(struct tracefs_instance *inst);

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int save_trace_to_file(struct tracefs_instance *inst, const char *filename);

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int collect_registered_events(struct tep_event *tep, struct tep_record *record,

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			      int cpu, void *context);

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struct trace_events *trace_event_alloc(const char *event_string);

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void trace_events_disable(struct trace_instance *instance,

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			  struct trace_events *events);

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void trace_events_destroy(struct trace_instance *instance,

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			  struct trace_events *events);

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int trace_events_enable(struct trace_instance *instance,

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			  struct trace_events *events);

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int trace_event_add_filter(struct trace_events *event, char *filter);

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int trace_event_add_trigger(struct trace_events *event, char *trigger);

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int trace_set_buffer_size(struct trace_instance *trace, int size);

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