From cefed3e10395e756b1199b45a44652c772fa4323 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Thu, 18 Aug 2005 00:53:56 +0000 Subject: add the posix_memalign function --- libc/stdlib/posix_memalign.c | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 libc/stdlib/posix_memalign.c (limited to 'libc/stdlib/posix_memalign.c') diff --git a/libc/stdlib/posix_memalign.c b/libc/stdlib/posix_memalign.c new file mode 100644 index 000000000..115fb8999 --- /dev/null +++ b/libc/stdlib/posix_memalign.c @@ -0,0 +1,42 @@ +/* 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 + * + * 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; if not, write to the Free Software Foundation, + * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include +#include +#include +#include +#include + +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; + + *memptr = memalign(alignment, size); + + return (*memptr != NULL ? 0 : ENOMEM); +} -- cgit v1.2.3