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/* Test to verify that passing a pointer to an uninitialized object
to pthread_setspecific doesn't trigger bogus uninitialized warnings.
Copyright (C) 2021-2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <pthread.h>
#include <stdlib.h>
#include <libc-diag.h>
/* Turn uninitialized warnings into errors to detect the problem.
See BZ #27714. */
DIAG_PUSH_NEEDS_COMMENT;
DIAG_IGNORE_NEEDS_COMMENT_GCC (6, "-Wmaybe-uninitialized");
DIAG_IGNORE_NEEDS_COMMENT (6, "-Wuninitialized");
static int
do_test (void)
{
void *p = malloc (1); /* Deliberately uninitialized. */
pthread_setspecific (pthread_self (), p);
void *q = pthread_getspecific (pthread_self ());
return p == q;
}
DIAG_POP_NEEDS_COMMENT;
#include <support/test-driver.c>
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