Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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 unsigned long long missed_events;
21 unsigned long long processed_events;
22};
23
24int trace_instance_init(struct trace_instance *trace, char *tool_name);
25int trace_instance_start(struct trace_instance *trace);
26int trace_instance_stop(struct trace_instance *trace);
27void trace_instance_destroy(struct trace_instance *trace);
28
29struct trace_seq *get_trace_seq(void);
30int enable_tracer_by_name(struct tracefs_instance *inst, const char *tracer_name);
31void disable_tracer(struct tracefs_instance *inst);
32
33int enable_osnoise(struct trace_instance *trace);
34int enable_timerlat(struct trace_instance *trace);
35
36struct tracefs_instance *create_instance(char *instance_name);
37void destroy_instance(struct tracefs_instance *inst);
38
39int save_trace_to_file(struct tracefs_instance *inst, const char *filename);
40int collect_registered_events(struct tep_event *tep, struct tep_record *record,
41 int cpu, void *context);
42
43struct trace_events *trace_event_alloc(const char *event_string);
44void trace_events_disable(struct trace_instance *instance,
45 struct trace_events *events);
46void trace_events_destroy(struct trace_instance *instance,
47 struct trace_events *events);
48int trace_events_enable(struct trace_instance *instance,
49 struct trace_events *events);
50
51int trace_event_add_filter(struct trace_events *event, char *filter);
52int trace_event_add_trigger(struct trace_events *event, char *trigger);
53int trace_set_buffer_size(struct trace_instance *trace, int size);