1 /* Test to verify that passing a pointer to an uninitialized object 2 to pthread_setspecific doesn't trigger bogus uninitialized warnings. 3 Copyright (C) 2021-2022 Free Software Foundation, Inc. 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 <pthread.h> 21 #include <stdlib.h> 22 #include <libc-diag.h> 23 24 /* Turn uninitialized warnings into errors to detect the problem. 25 See BZ #27714. */ 26 27 DIAG_PUSH_NEEDS_COMMENT; 28 DIAG_IGNORE_NEEDS_COMMENT (6, "-Wmaybe-uninitialized"); 29 DIAG_IGNORE_NEEDS_COMMENT (6, "-Wuninitialized"); 30 31 static int do_test(void)32do_test (void) 33 { 34 void *p = malloc (1); /* Deliberately uninitialized. */ 35 pthread_setspecific (pthread_self (), p); 36 37 void *q = pthread_getspecific (pthread_self ()); 38 39 return p == q; 40 } 41 42 DIAG_POP_NEEDS_COMMENT; 43 44 #include <support/test-driver.c> 45