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 | |
11 | unsigned short urandlib_read_with_sema_semaphore SEC(".probes" ); |
12 | |
13 | void 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 | |
18 | COMPAT_VERSION(urandlib_api_v1, urandlib_api, LIBURANDOM_READ_1.0.0) |
19 | int urandlib_api_v1(void) |
20 | { |
21 | return 1; |
22 | } |
23 | |
24 | DEFAULT_VERSION(urandlib_api_v2, urandlib_api, LIBURANDOM_READ_2.0.0) |
25 | int urandlib_api_v2(void) |
26 | { |
27 | return 2; |
28 | } |
29 | |
30 | COMPAT_VERSION(urandlib_api_sameoffset, urandlib_api_sameoffset, LIBURANDOM_READ_1.0.0) |
31 | DEFAULT_VERSION(urandlib_api_sameoffset, urandlib_api_sameoffset, LIBURANDOM_READ_2.0.0) |
32 | int urandlib_api_sameoffset(void) |
33 | { |
34 | return 3; |
35 | } |
36 | |