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28bd6f83 L |
1 | /* Check that legacy shadow stack code in init_array will trigger |
2 | segfault. | |
dff8da6b | 3 | Copyright (C) 2023-2024 Free Software Foundation, Inc. |
28bd6f83 L |
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 | #include <sys/platform/x86.h> | |
22 | #include <support/test-driver.h> | |
23 | #include <support/xsignal.h> | |
24 | ||
25 | /* Check that legacy shadow stack code in init_array will trigger | |
26 | segfault. */ | |
27 | extern void legacy (void); | |
28 | int done; | |
29 | ||
30 | void | |
31 | legacy_1 (void) | |
32 | { | |
33 | legacy (); | |
34 | done = 1; | |
35 | } | |
36 | ||
37 | void (*init_array []) (void) | |
38 | __attribute__ ((section (".init_array"), aligned (sizeof (void *)))) = | |
39 | { | |
40 | &legacy_1 | |
41 | }; | |
42 | ||
43 | static int | |
44 | do_test (void) | |
45 | { | |
46 | if (!CPU_FEATURE_ACTIVE (SHSTK)) | |
47 | return EXIT_UNSUPPORTED; | |
48 | ||
49 | return EXIT_FAILURE; | |
50 | } | |
51 | ||
52 | #define EXPECTED_SIGNAL (CPU_FEATURE_ACTIVE (SHSTK) ? SIGSEGV : 0) | |
53 | #include <support/test-driver.c> |