| 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 | */ |
| 23 | void *(* volatile explicit_memset_impl)(void *, int, size_t) = memset; |
| 24 | |
| 25 | void * |
| 26 | explicit_memset(void *b, int c, size_t len) |
| 27 | { |
| 28 | |
| 29 | return (*explicit_memset_impl)(b, c, len); |
| 30 | } |
| 31 | |