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-rw-r--r--arch/m68k/include/asm/string.h2
-rw-r--r--arch/m68knommu/lib/Makefile2
-rw-r--r--arch/m68knommu/lib/memmove.c105
3 files changed, 107 insertions, 2 deletions
diff --git a/arch/m68k/include/asm/string.h b/arch/m68k/include/asm/string.h
index ffc3c3f61243..32198454da70 100644
--- a/arch/m68k/include/asm/string.h
+++ b/arch/m68k/include/asm/string.h
@@ -99,10 +99,10 @@ static inline int strcmp(const char *cs, const char *ct)
: "+a" (cs), "+a" (ct), "=d" (res));
return res;
}
+#endif /* CONFIG_COLDFIRE */
#define __HAVE_ARCH_MEMMOVE
extern void *memmove(void *, const void *, __kernel_size_t);
-#endif /* CONFIG_COLDFIRE */
#define memcmp(d, s, n) __builtin_memcmp(d, s, n)
diff --git a/arch/m68knommu/lib/Makefile b/arch/m68knommu/lib/Makefile
index d94d709665aa..32d852e586d7 100644
--- a/arch/m68knommu/lib/Makefile
+++ b/arch/m68knommu/lib/Makefile
@@ -4,4 +4,4 @@
lib-y := ashldi3.o ashrdi3.o lshrdi3.o \
muldi3.o mulsi3.o divsi3.o udivsi3.o modsi3.o umodsi3.o \
- checksum.o memcpy.o memset.o delay.o
+ checksum.o memcpy.o memmove.o memset.o delay.o
diff --git a/arch/m68knommu/lib/memmove.c b/arch/m68knommu/lib/memmove.c
new file mode 100644
index 000000000000..b3dcfe9dab7e
--- /dev/null
+++ b/arch/m68knommu/lib/memmove.c
@@ -0,0 +1,105 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+#define __IN_STRING_C
+
+#include <linux/module.h>
+#include <linux/string.h>
+
+void *memmove(void *dest, const void *src, size_t n)
+{
+ void *xdest = dest;
+ size_t temp;
+
+ if (!n)
+ return xdest;
+
+ if (dest < src) {
+ if ((long)dest & 1) {
+ char *cdest = dest;
+ const char *csrc = src;
+ *cdest++ = *csrc++;
+ dest = cdest;
+ src = csrc;
+ n--;
+ }
+ if (n > 2 && (long)dest & 2) {
+ short *sdest = dest;
+ const short *ssrc = src;
+ *sdest++ = *ssrc++;
+ dest = sdest;
+ src = ssrc;
+ n -= 2;
+ }
+ temp = n >> 2;
+ if (temp) {
+ long *ldest = dest;
+ const long *lsrc = src;
+ temp--;
+ do
+ *ldest++ = *lsrc++;
+ while (temp--);
+ dest = ldest;
+ src = lsrc;
+ }
+ if (n & 2) {
+ short *sdest = dest;
+ const short *ssrc = src;
+ *sdest++ = *ssrc++;
+ dest = sdest;
+ src = ssrc;
+ }
+ if (n & 1) {
+ char *cdest = dest;
+ const char *csrc = src;
+ *cdest = *csrc;
+ }
+ } else {
+ dest = (char *)dest + n;
+ src = (const char *)src + n;
+ if ((long)dest & 1) {
+ char *cdest = dest;
+ const char *csrc = src;
+ *--cdest = *--csrc;
+ dest = cdest;
+ src = csrc;
+ n--;
+ }
+ if (n > 2 && (long)dest & 2) {
+ short *sdest = dest;
+ const short *ssrc = src;
+ *--sdest = *--ssrc;
+ dest = sdest;
+ src = ssrc;
+ n -= 2;
+ }
+ temp = n >> 2;
+ if (temp) {
+ long *ldest = dest;
+ const long *lsrc = src;
+ temp--;
+ do
+ *--ldest = *--lsrc;
+ while (temp--);
+ dest = ldest;
+ src = lsrc;
+ }
+ if (n & 2) {
+ short *sdest = dest;
+ const short *ssrc = src;
+ *--sdest = *--ssrc;
+ dest = sdest;
+ src = ssrc;
+ }
+ if (n & 1) {
+ char *cdest = dest;
+ const char *csrc = src;
+ *--cdest = *--csrc;
+ }
+ }
+ return xdest;
+}
+EXPORT_SYMBOL(memmove);