]>
Commit | Line | Data |
---|---|---|
4db71d2f | 1 | /* Program with local IFUNC resolver which crashes, for testing bug 24214. |
2b778ceb | 2 | Copyright (C) 2019-2021 Free Software Foundation, Inc. |
4db71d2f FW |
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 | /* The construct below is expected to produce an IRELATIVE relocation | |
20 | with an IFUNC resolver that crashes. ldd should not performs such | |
21 | relocations. */ | |
22 | ||
23 | #include <config.h> | |
24 | ||
25 | #ifdef HAVE_GCC_IFUNC | |
26 | ||
27 | # include <stddef.h> | |
28 | ||
29 | static void | |
30 | implementation (void) | |
31 | { | |
32 | /* Produce a crash, without depending on any relocations. */ | |
33 | volatile char *volatile p = NULL; | |
34 | *p = 0; | |
35 | } | |
36 | ||
37 | static __typeof__ (implementation) * | |
38 | resolver (void) | |
39 | { | |
40 | /* Produce a crash, without depending on any relocations. */ | |
41 | volatile char *volatile p = NULL; | |
42 | *p = 0; | |
43 | return implementation; | |
44 | } | |
45 | ||
46 | static void magic (void) __attribute__ ((ifunc ("resolver"))); | |
47 | ||
48 | void (*magic_ptr) (void) = magic; | |
49 | ||
50 | #endif /* HAVE_GCC_IFUNC */ | |
51 | ||
52 | /* The program is expected not to run. */ | |
53 | int | |
54 | main (void) | |
55 | { | |
56 | return 1; | |
57 | } |