1/* Check that legacy shadow stack code will trigger segfault.
2 Copyright (C) 2023-2024 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <stdlib.h>
20#include <sys/platform/x86.h>
21#include <support/test-driver.h>
22#include <support/xsignal.h>
23
24/* Check that legacy shadow stack code will trigger segfault. */
25extern void legacy (void);
26
27static int
28do_test (void)
29{
30 if (!CPU_FEATURE_ACTIVE (SHSTK))
31 return EXIT_UNSUPPORTED;
32
33 legacy ();
34 return EXIT_FAILURE;
35}
36
37#define EXPECTED_SIGNAL (CPU_FEATURE_ACTIVE (SHSTK) ? SIGSEGV : 0)
38#include <support/test-driver.c>
39

source code of glibc/sysdeps/x86_64/tst-shstk-legacy-1b.c