1/* Check compatibility of CET-enabled executable with dlopened legacy
2 shared object.
3 Copyright (C) 2019-2024 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
5
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
10
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <https://www.gnu.org/licenses/>. */
19
20#include <stdlib.h>
21
22static int called = 0;
23
24static void
25__attribute__ ((constructor))
26init (void)
27{
28 called = 1;
29}
30
31void
32foo (void)
33{
34 if (!called)
35 abort ();
36}
37

source code of glibc/sysdeps/x86_64/tst-cet-legacy-mod-5c.c