1 /* Check incompatibility with legacy JIT engine.
2 Copyright (C) 2020-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
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/>. */
21 #include <x86intrin.h>
23 #include <support/test-driver.h>
24 #include <support/xsignal.h>
25 #include <support/xunistd.h>
27 /* Check that mmapped legacy code trigges segfault with -fcf-protection. */
32 /* NB: This test should trigger SIGSEGV on CET platforms. If SHSTK
33 is disabled, assuming IBT is also disabled. */
35 return EXIT_UNSUPPORTED
;
38 funcp
= xmmap (NULL
, 0x1000, PROT_EXEC
| PROT_READ
| PROT_WRITE
,
39 MAP_ANONYMOUS
| MAP_PRIVATE
, -1);
40 printf ("mmap = %p\n", funcp
);
41 /* Write RET instruction. */
42 *(char *) funcp
= 0xc3;
47 #define EXPECTED_SIGNAL (_get_ssp () == 0 ? 0 : SIGSEGV)
48 #include <support/test-driver.c>