libc: remove bcopy from memmove on 64-bit architectures
* bcopy is deprecated on LP64 by the following commit:
https://android.googlesource.com/platform/bionic/+/ce9ce28e5d760e32ab6c894dfaf7b8dad6de7ff6
Change-Id: I6849916f0ec4a2d0db9a360999ad1dc8edda952b
diff --git a/libc/arch-arm64/generic/bionic/memmove.S b/libc/arch-arm64/generic/bionic/memmove.S
index 8b366a3..739ce49 100644
--- a/libc/arch-arm64/generic/bionic/memmove.S
+++ b/libc/arch-arm64/generic/bionic/memmove.S
@@ -35,10 +35,6 @@
#include <private/bionic_asm.h>
/* Parameters and result. */
-#ifdef BCOPY
-#define origdstin x1
-#define origsrc x0
-#endif
#define dstin x0
#define src x1
#define count x2
@@ -59,13 +55,7 @@
#define D_l x13
#define D_h x14
-#ifdef BCOPY
-ENTRY(bcopy)
- /* Swap src and dst so that a branch to memcpy doesn't cause issues. */
- mov tmp1, origsrc
- mov origsrc, origdstin
- mov origdstin, tmp1
-#elif defined(WMEMMOVE)
+#if defined(WMEMMOVE)
ENTRY(wmemmove)
lsl count, count, #2
#else
@@ -332,9 +322,7 @@
tst count, #0x3f
b.ne .Ltail63down
ret
-#ifdef BCOPY
-END(bcopy)
-#elif defined(WMEMMOVE)
+#if defined(WMEMMOVE)
END(wmemmove)
#else
END(memmove)