| 1 | /* Test to verify that passing a pointer to an uninitialized object |
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| 2 | to pthread_setspecific doesn't trigger bogus uninitialized warnings. |
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| 3 | Copyright (C) 2021-2024 Free Software Foundation, Inc. |
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| 4 | This file is part of the GNU C Library. |
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| 5 | |
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| 6 | The GNU C Library is free software; you can redistribute it and/or |
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| 7 | modify it under the terms of the GNU Lesser General Public |
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| 8 | License as published by the Free Software Foundation; either |
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| 9 | version 2.1 of the License, or (at your option) any later version. |
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| 10 | |
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| 11 | The GNU C Library is distributed in the hope that it will be useful, |
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 14 | Lesser General Public License for more details. |
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| 15 | |
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| 16 | You should have received a copy of the GNU Lesser General Public |
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| 17 | License along with the GNU C Library; if not, see |
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| 18 | <https://www.gnu.org/licenses/>. */ |
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| 19 | |
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| 20 | #include <pthread.h> |
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| 21 | #include <stdlib.h> |
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| 22 | #include <libc-diag.h> |
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| 23 | |
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| 24 | /* Turn uninitialized warnings into errors to detect the problem. |
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| 25 | See BZ #27714. */ |
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| 26 | |
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| 27 | DIAG_PUSH_NEEDS_COMMENT; |
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| 28 | DIAG_IGNORE_NEEDS_COMMENT (6, "-Wmaybe-uninitialized" ); |
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| 29 | DIAG_IGNORE_NEEDS_COMMENT (6, "-Wuninitialized" ); |
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| 30 | |
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| 31 | static int |
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| 32 | do_test (void) |
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| 33 | { |
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| 34 | void *p = malloc (size: 1); /* Deliberately uninitialized. */ |
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| 35 | pthread_setspecific (key: pthread_self (), pointer: p); |
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| 36 | |
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| 37 | void *q = pthread_getspecific (key: pthread_self ()); |
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| 38 | |
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| 39 | return p == q; |
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| 40 | } |
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| 41 | |
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| 42 | DIAG_POP_NEEDS_COMMENT; |
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| 43 | |
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| 44 | #include <support/test-driver.c> |
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| 45 | |
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