X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fi386%2Flib%2Fmemcpy.c;h=ad16efa52e84b84cda90899bae36696c06801176;hb=9bf4aaab3e101692164d49b7ca357651eb691cb6;hp=4cb37b6e501530212bfd2e575f951ed44dce66ae;hpb=db216c3d5e4c040e557a50f8f5d35d5c415e8c1c;p=linux-2.6.git

diff --git a/arch/i386/lib/memcpy.c b/arch/i386/lib/memcpy.c
index 4cb37b6e5..ad16efa52 100644
--- a/arch/i386/lib/memcpy.c
+++ b/arch/i386/lib/memcpy.c
@@ -1,10 +1,11 @@
 #include <linux/config.h>
 #include <linux/string.h>
+#include <linux/module.h>
 
 #undef memcpy
 #undef memset
 
-void * memcpy(void * to, const void * from, size_t n)
+void *memcpy(void *to, const void *from, size_t n)
 {
 #ifdef CONFIG_X86_USE_3DNOW
 	return __memcpy3d(to, from, n);
@@ -12,8 +13,32 @@ void * memcpy(void * to, const void * from, size_t n)
 	return __memcpy(to, from, n);
 #endif
 }
+EXPORT_SYMBOL_NOVERS(memcpy);
 
-void * memset(void * s, int c, size_t count)
+void *memset(void *s, int c, size_t count)
 {
 	return __memset(s, c, count);
 }
+EXPORT_SYMBOL_NOVERS(memset);
+
+void *memmove(void *dest, const void *src, size_t n)
+{
+	int d0, d1, d2;
+
+	if (dest < src) {
+		memcpy(dest,src,n);
+	} else {
+		__asm__ __volatile__(
+			"std\n\t"
+			"rep\n\t"
+			"movsb\n\t"
+			"cld"
+			: "=&c" (d0), "=&S" (d1), "=&D" (d2)
+			:"0" (n),
+			 "1" (n-1+(const char *)src),
+			 "2" (n-1+(char *)dest)
+			:"memory");
+	}
+	return dest;
+}
+EXPORT_SYMBOL_NOVERS(memmove);