1// SPDX-License-Identifier: GPL-2.0
2/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
3#define _SDT_HAS_SEMAPHORES 1
4#include "sdt.h"
5
6#define SHARED 1
7#include "bpf/libbpf_internal.h"
8
9#define SEC(name) __attribute__((section(name), used))
10
11unsigned short urandlib_read_with_sema_semaphore SEC(".probes");
12
13void urandlib_read_with_sema(int iter_num, int iter_cnt, int read_sz)
14{
15	STAP_PROBE3(urandlib, read_with_sema, iter_num, iter_cnt, read_sz);
16}
17
18COMPAT_VERSION(urandlib_api_v1, urandlib_api, LIBURANDOM_READ_1.0.0)
19int urandlib_api_v1(void)
20{
21	return 1;
22}
23
24DEFAULT_VERSION(urandlib_api_v2, urandlib_api, LIBURANDOM_READ_2.0.0)
25int urandlib_api_v2(void)
26{
27	return 2;
28}
29
30COMPAT_VERSION(urandlib_api_sameoffset, urandlib_api_sameoffset, LIBURANDOM_READ_1.0.0)
31DEFAULT_VERSION(urandlib_api_sameoffset, urandlib_api_sameoffset, LIBURANDOM_READ_2.0.0)
32int urandlib_api_sameoffset(void)
33{
34	return 3;
35}
36