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 <sys/platform/x86.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. */
33 funcp
= xmmap (NULL
, 0x1000, PROT_EXEC
| PROT_READ
| PROT_WRITE
,
34 MAP_ANONYMOUS
| MAP_PRIVATE
, -1);
35 printf ("mmap = %p\n", funcp
);
36 /* Write RET instruction. */
37 *(char *) funcp
= 0xc3;
40 /* NB: This test should trigger SIGSEGV when IBT is active. We should
41 reach here if IBT isn't active. */
42 if (!CPU_FEATURE_ACTIVE (IBT
))
43 return EXIT_UNSUPPORTED
;
48 #define EXPECTED_SIGNAL (CPU_FEATURE_ACTIVE (IBT) ? SIGSEGV : 0)
49 #include <support/test-driver.c>