https://github.com/torvalds/linux
Tip revision: 9ffecb10283508260936b96022d4ee43a7798b4c authored by Linus Torvalds on 27 September 2015, 11:50:08 UTC
Linux 4.3-rc3
Linux 4.3-rc3
Tip revision: 9ffecb1
plugin_hrtimer.c
/*
* Copyright (C) 2009 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
* Copyright (C) 2009 Johannes Berg <johannes@sipsolutions.net>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License (not later!)
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, see <http://www.gnu.org/licenses>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "event-parse.h"
static int timer_expire_handler(struct trace_seq *s,
struct pevent_record *record,
struct event_format *event, void *context)
{
trace_seq_printf(s, "hrtimer=");
if (pevent_print_num_field(s, "0x%llx", event, "timer",
record, 0) == -1)
pevent_print_num_field(s, "0x%llx", event, "hrtimer",
record, 1);
trace_seq_printf(s, " now=");
pevent_print_num_field(s, "%llu", event, "now", record, 1);
pevent_print_func_field(s, " function=%s", event, "function",
record, 0);
return 0;
}
static int timer_start_handler(struct trace_seq *s,
struct pevent_record *record,
struct event_format *event, void *context)
{
trace_seq_printf(s, "hrtimer=");
if (pevent_print_num_field(s, "0x%llx", event, "timer",
record, 0) == -1)
pevent_print_num_field(s, "0x%llx", event, "hrtimer",
record, 1);
pevent_print_func_field(s, " function=%s", event, "function",
record, 0);
trace_seq_printf(s, " expires=");
pevent_print_num_field(s, "%llu", event, "expires", record, 1);
trace_seq_printf(s, " softexpires=");
pevent_print_num_field(s, "%llu", event, "softexpires", record, 1);
return 0;
}
int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
{
pevent_register_event_handler(pevent, -1,
"timer", "hrtimer_expire_entry",
timer_expire_handler, NULL);
pevent_register_event_handler(pevent, -1, "timer", "hrtimer_start",
timer_start_handler, NULL);
return 0;
}
void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent)
{
pevent_unregister_event_handler(pevent, -1,
"timer", "hrtimer_expire_entry",
timer_expire_handler, NULL);
pevent_unregister_event_handler(pevent, -1, "timer", "hrtimer_start",
timer_start_handler, NULL);
}