1// SPDX-License-Identifier: LGPL-2.1
 2/*
 3 * Copyright (C) 2009 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
 4 * Copyright (C) 2009 Johannes Berg <johannes@sipsolutions.net>
 5 */
 6#include <stdio.h>
 7#include <stdlib.h>
 8#include <string.h>
 9
10#include "event-parse.h"
11#include "trace-seq.h"
12
13static int timer_expire_handler(struct trace_seq *s,
14				struct tep_record *record,
15				struct tep_event *event, void *context)
16{
17	trace_seq_printf(s, "hrtimer=");
18
19	if (tep_print_num_field(s, "0x%llx", event, "timer",
20				record, 0) == -1)
21		tep_print_num_field(s, "0x%llx", event, "hrtimer",
22				    record, 1);
23
24	trace_seq_printf(s, " now=");
25
26	tep_print_num_field(s, "%llu", event, "now", record, 1);
27
28	tep_print_func_field(s, " function=%s", event, "function",
29				record, 0);
30	return 0;
31}
32
33static int timer_start_handler(struct trace_seq *s,
34			       struct tep_record *record,
35			       struct tep_event *event, void *context)
36{
37	trace_seq_printf(s, "hrtimer=");
38
39	if (tep_print_num_field(s, "0x%llx", event, "timer",
40				record, 0) == -1)
41		tep_print_num_field(s, "0x%llx", event, "hrtimer",
42				    record, 1);
43
44	tep_print_func_field(s, " function=%s", event, "function",
45			     record, 0);
46
47	trace_seq_printf(s, " expires=");
48	tep_print_num_field(s, "%llu", event, "expires", record, 1);
49
50	trace_seq_printf(s, " softexpires=");
51	tep_print_num_field(s, "%llu", event, "softexpires", record, 1);
52	return 0;
53}
54
55int TEP_PLUGIN_LOADER(struct tep_handle *tep)
56{
57	tep_register_event_handler(tep, -1,
58				   "timer", "hrtimer_expire_entry",
59				   timer_expire_handler, NULL);
60
61	tep_register_event_handler(tep, -1, "timer", "hrtimer_start",
62				   timer_start_handler, NULL);
63	return 0;
64}
65
66void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
67{
68	tep_unregister_event_handler(tep, -1,
69				     "timer", "hrtimer_expire_entry",
70				     timer_expire_handler, NULL);
71
72	tep_unregister_event_handler(tep, -1, "timer", "hrtimer_start",
73				     timer_start_handler, NULL);
74}