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
timer_expire_handler(struct trace_seq * s,struct pevent_record * record,struct event_format * event,void * context)27 static 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
timer_start_handler(struct trace_seq * s,struct pevent_record * record,struct event_format * event,void * context)47 static 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
PEVENT_PLUGIN_LOADER(struct pevent * pevent)69 int 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
PEVENT_PLUGIN_UNLOADER(struct pevent * pevent)80 void 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