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/* vi: set sw=4 ts=4: */
/* posix_memalign for uClibc
*
* Copyright (C) 1996-2002, 2003, 2004, 2005 Free Software Foundation, Inc.
* Copyright (C) 2005 by Erik Andersen <andersen@uclibc.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Library General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program 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 Library General Public License
* for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this program; see the file COPYING.LIB. If not, see
* <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <malloc.h>
#include <sys/types.h>
#include <errno.h>
#include <sys/param.h>
int posix_memalign(void **memptr, size_t alignment, size_t size)
{
/* Make sure alignment is correct. */
if (alignment % sizeof(void *) != 0)
/* Skip these checks because the memalign() func does them for us
|| !powerof2(alignment / sizeof(void *)) != 0
|| alignment == 0
*/
return EINVAL;
void *mem = memalign(alignment, size);
if (mem != NULL) {
*memptr = mem;
return 0;
} else
return ENOMEM;
}
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