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

/*
 * lttng-calibrate.c
 *
 * Copyright 2011 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 *
 * LTTng probe calibration.
 *
 * Dual LGPL v2.1/GPL v2 license.
 */

#include "ltt-debugfs-abi.h"
#include "ltt-events.h"

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

int lttng_calibrate(struct lttng_kernel_calibrate *calibrate)
{
	switch (calibrate->type) {
	case LTTNG_KERNEL_CALIBRATE_KRETPROBE:
		lttng_calibrate_kretprobe();
		break;
	default:
		return -EINVAL;
	}
	return 0;
}
Commit	Line	Data
57105fc2 MD	1	/*
	2	* lttng-calibrate.c
	3	*
	4	* Copyright 2011 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	5	*
	6	* LTTng probe calibration.
	7	*
	8	* Dual LGPL v2.1/GPL v2 license.
	9	*/
	10
	11	#include "ltt-debugfs-abi.h"
	12	#include "ltt-events.h"
	13
950f5c99	14	noinline
57105fc2 MD	15	void lttng_calibrate_kretprobe(void)
57105fc2 MD	16	{
9b4a21cc	17	asm volatile ("");
57105fc2 MD	18	}
57105fc2 MD	19
3db41b2c	20	int lttng_calibrate(struct lttng_kernel_calibrate *calibrate)
57105fc2 MD	21	{
57105fc2 MD	22	switch (calibrate->type) {
3db41b2c	23	case LTTNG_KERNEL_CALIBRATE_KRETPROBE:
9b4a21cc	24	lttng_calibrate_kretprobe();
57105fc2 MD	25	break;
	26	default:
	27	return -EINVAL;
	28	}
	29	return 0;
	30	}