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