1/*
2 * Copyright (C) 2009 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
3 * Copyright (C) 2009 Johannes Berg <johannes@sipsolutions.net>
4 *
5 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation;
9 * version 2.1 of the License (not later!)
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 * GNU Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this program; if not,  see <http://www.gnu.org/licenses>
18 *
19 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
20 */
21#include <stdio.h>
22#include <stdlib.h>
23#include <string.h>
24
25#include "event-parse.h"
26
27static int timer_expire_handler(struct trace_seq *s,
28				struct pevent_record *record,
29				struct event_format *event, void *context)
30{
31	trace_seq_printf(s, "hrtimer=");
32
33	if (pevent_print_num_field(s, "0x%llx", event, "timer",
34				   record, 0) == -1)
35		pevent_print_num_field(s, "0x%llx", event, "hrtimer",
36				       record, 1);
37
38	trace_seq_printf(s, " now=");
39
40	pevent_print_num_field(s, "%llu", event, "now", record, 1);
41
42	pevent_print_func_field(s, " function=%s", event, "function",
43				record, 0);
44	return 0;
45}
46
47static int timer_start_handler(struct trace_seq *s,
48			       struct pevent_record *record,
49			       struct event_format *event, void *context)
50{
51	trace_seq_printf(s, "hrtimer=");
52
53	if (pevent_print_num_field(s, "0x%llx", event, "timer",
54				   record, 0) == -1)
55		pevent_print_num_field(s, "0x%llx", event, "hrtimer",
56				       record, 1);
57
58	pevent_print_func_field(s, " function=%s", event, "function",
59				record, 0);
60
61	trace_seq_printf(s, " expires=");
62	pevent_print_num_field(s, "%llu", event, "expires", record, 1);
63
64	trace_seq_printf(s, " softexpires=");
65	pevent_print_num_field(s, "%llu", event, "softexpires", record, 1);
66	return 0;
67}
68
69int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
70{
71	pevent_register_event_handler(pevent, -1,
72				      "timer", "hrtimer_expire_entry",
73				      timer_expire_handler, NULL);
74
75	pevent_register_event_handler(pevent, -1, "timer", "hrtimer_start",
76				      timer_start_handler, NULL);
77	return 0;
78}
79
80void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent)
81{
82	pevent_unregister_event_handler(pevent, -1,
83					"timer", "hrtimer_expire_entry",
84					timer_expire_handler, NULL);
85
86	pevent_unregister_event_handler(pevent, -1, "timer", "hrtimer_start",
87					timer_start_handler, NULL);
88}
89