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#include "trace-seq.h"
27
28static int timer_expire_handler(struct trace_seq *s,
29				struct tep_record *record,
30				struct tep_event *event, void *context)
31{
32	trace_seq_printf(s, "hrtimer=");
33
34	if (tep_print_num_field(s, "0x%llx", event, "timer",
35				record, 0) == -1)
36		tep_print_num_field(s, "0x%llx", event, "hrtimer",
37				    record, 1);
38
39	trace_seq_printf(s, " now=");
40
41	tep_print_num_field(s, "%llu", event, "now", record, 1);
42
43	tep_print_func_field(s, " function=%s", event, "function",
44				record, 0);
45	return 0;
46}
47
48static int timer_start_handler(struct trace_seq *s,
49			       struct tep_record *record,
50			       struct tep_event *event, void *context)
51{
52	trace_seq_printf(s, "hrtimer=");
53
54	if (tep_print_num_field(s, "0x%llx", event, "timer",
55				record, 0) == -1)
56		tep_print_num_field(s, "0x%llx", event, "hrtimer",
57				    record, 1);
58
59	tep_print_func_field(s, " function=%s", event, "function",
60			     record, 0);
61
62	trace_seq_printf(s, " expires=");
63	tep_print_num_field(s, "%llu", event, "expires", record, 1);
64
65	trace_seq_printf(s, " softexpires=");
66	tep_print_num_field(s, "%llu", event, "softexpires", record, 1);
67	return 0;
68}
69
70int TEP_PLUGIN_LOADER(struct tep_handle *tep)
71{
72	tep_register_event_handler(tep, -1,
73				   "timer", "hrtimer_expire_entry",
74				   timer_expire_handler, NULL);
75
76	tep_register_event_handler(tep, -1, "timer", "hrtimer_start",
77				   timer_start_handler, NULL);
78	return 0;
79}
80
81void TEP_PLUGIN_UNLOADER(struct tep_handle *tep)
82{
83	tep_unregister_event_handler(tep, -1,
84				     "timer", "hrtimer_expire_entry",
85				     timer_expire_handler, NULL);
86
87	tep_unregister_event_handler(tep, -1, "timer", "hrtimer_start",
88				     timer_start_handler, NULL);
89}