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6ca8284e | 1 | /* Unit test for _Unwind_Backtrace in a shared object constructor. |
6d7e8eda | 2 | Copyright (C) 2018-2023 Free Software Foundation, Inc. |
6ca8284e AS |
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 | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
6ca8284e AS |
18 | |
19 | #include <unwind.h> | |
20 | #include <unistd.h> | |
21 | ||
22 | static _Unwind_Reason_Code | |
23 | callback (struct _Unwind_Context *ctx, void *arg) | |
24 | { | |
25 | return _URC_NO_REASON; | |
26 | } | |
27 | ||
28 | static void | |
29 | __attribute__ ((constructor)) | |
30 | do_unwind (void) | |
31 | { | |
32 | /* Arrange for this test to be killed if _Unwind_Backtrace runs into an | |
33 | endless loop. We cannot use the test driver since the test needs to | |
34 | run in a constructor. */ | |
35 | alarm (20); | |
36 | _Unwind_Backtrace (callback, 0); | |
37 | } | |
38 | ||
39 | void | |
40 | dummy (void) | |
41 | { | |
42 | } |