From f86afe5a3ac62a92e821c764a011e1625abdd326 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Wed, 14 Oct 2015 07:39:37 +0200 Subject: C11 aligned_alloc() implementation aligned_alloc() is implemented in terms of posix_memalign() which is only declared in but not defined in Newlib in general. At least Linux and RTEMS implement this function. newlib/ChangeLog 2015-10-14 Sebastian Huber * libc/stdlib/Makefile.am (GENERAL_SOURCES): Add alloc_aligned.c.c. * libc/stdlib/Makefile.in: Regenerate. * libc/stdlib/aligned_alloc.c: New. --- newlib/libc/stdlib/aligned_alloc.c | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 newlib/libc/stdlib/aligned_alloc.c (limited to 'newlib/libc/stdlib/aligned_alloc.c') diff --git a/newlib/libc/stdlib/aligned_alloc.c b/newlib/libc/stdlib/aligned_alloc.c new file mode 100644 index 000000000..88413ce86 --- /dev/null +++ b/newlib/libc/stdlib/aligned_alloc.c @@ -0,0 +1,38 @@ +/*- + * Copyright (c) 2015 embedded brains GmbH + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include + +void * +aligned_alloc(size_t alignment, size_t size) +{ + void *p; + int error; + + error = posix_memalign(&p, alignment, size); + + return (error == 0 ? p : NULL); +} -- cgit v1.2.3