[lttng-modules.git] / src / lttng-calibrate.c

/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
 *
 * lttng-calibrate.c
 *
 * LTTng probe calibration.
 *
 * Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 */

#include <lttng/abi.h>
#include <lttng/events.h>

noinline
void lttng_calibrate_kretprobe(void)
{
	asm volatile ("");
}

int lttng_calibrate(struct lttng_kernel_abi_calibrate *calibrate)
{
	switch (calibrate->type) {
	case LTTNG_KERNEL_ABI_CALIBRATE_KRETPROBE:
		lttng_calibrate_kretprobe();
		break;
	default:
		return -EINVAL;
	}
	return 0;
}
Commit	Line	Data
b7cdc182	1	/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
9f36eaed	2	*
57105fc2 MD	3	* lttng-calibrate.c
57105fc2 MD	4	*
57105fc2 MD	5	* LTTng probe calibration.
57105fc2 MD	6	*
886d51a3	7	* Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
57105fc2 MD	8	*/
57105fc2 MD	9
2df37e95 MD	10	#include <lttng/abi.h>
2df37e95 MD	11	#include <lttng/events.h>
57105fc2	12
950f5c99	13	noinline
57105fc2 MD	14	void lttng_calibrate_kretprobe(void)
57105fc2 MD	15	{
9b4a21cc	16	asm volatile ("");
57105fc2 MD	17	}
57105fc2 MD	18
606828e4	19	int lttng_calibrate(struct lttng_kernel_abi_calibrate *calibrate)
57105fc2 MD	20	{
57105fc2 MD	21	switch (calibrate->type) {
606828e4	22	case LTTNG_KERNEL_ABI_CALIBRATE_KRETPROBE:
9b4a21cc	23	lttng_calibrate_kretprobe();
57105fc2 MD	24	break;
	25	default:
	26	return -EINVAL;
	27	}
	28	return 0;
	29	}