Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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 *pevent)
71{
72 tep_register_event_handler(pevent, -1,
73 "timer", "hrtimer_expire_entry",
74 timer_expire_handler, NULL);
75
76 tep_register_event_handler(pevent, -1, "timer", "hrtimer_start",
77 timer_start_handler, NULL);
78 return 0;
79}
80
81void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
82{
83 tep_unregister_event_handler(pevent, -1,
84 "timer", "hrtimer_expire_entry",
85 timer_expire_handler, NULL);
86
87 tep_unregister_event_handler(pevent, -1, "timer", "hrtimer_start",
88 timer_start_handler, NULL);
89}