explicit_memset.c revision 1.4 
1/* $NetBSD: explicit_memset.c,v 1.4 2014/06/24 16:39:39 drochner Exp $ */
2
3/*
4 * Written by Matthias Drochner <drochner@NetBSD.org>.
5 * Public domain.
6 */
7
8#if !defined(_KERNEL) && !defined(_STANDALONE)
9#include "namespace.h"
10#include <string.h>
11#ifdef __weak_alias
12__weak_alias(explicit_memset,_explicit_memset)
13#endif
14#define explicit_memset_impl __explicit_memset_impl
15#else
16#include <lib/libkern/libkern.h>
17#endif
18
19/*
20 * The use of a volatile pointer guarantees that the compiler
21 * will not optimise the call away.
22 */
23void *(* volatile explicit_memset_impl)(void *, int, size_t) = memset;
24
25void *
26explicit_memset(void *b, int c, size_t len)
27{
28
29	return (*explicit_memset_impl)(b, c, len);
30}
31