Add syscalls extracted files from a 3.10-rc7 kernel
[lttng-modules.git] / lttng-calibrate.c
1 /*
2 * lttng-calibrate.c
3 *
4 * LTTng probe calibration.
5 *
6 * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; only
11 * version 2.1 of the License.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23 #include "lttng-abi.h"
24 #include "lttng-events.h"
25
26 noinline
27 void lttng_calibrate_kretprobe(void)
28 {
29 asm volatile ("");
30 }
31
32 int lttng_calibrate(struct lttng_kernel_calibrate *calibrate)
33 {
34 switch (calibrate->type) {
35 case LTTNG_KERNEL_CALIBRATE_KRETPROBE:
36 lttng_calibrate_kretprobe();
37 break;
38 default:
39 return -EINVAL;
40 }
41 return 0;
42 }
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