Add memmove() to the kernel, making the kernel compile with Clang.

When copying big structures, LLVM generates calls to memmove(), because
it may not be able to figure out whether structures overlap. This caused
linker errors to occur. memmove() is now implemented using bcopy().
Ideally it would be the other way around, but that can be solved in the
future. On ARM we don't do add anything, because it already has
memmove().

Discussed on:	arch@
Reviewed by:	rdivacky

1 files changed, 0 insertions, 4 deletions

diff --git a/sys/cddl/compat/opensolaris/sys/sysmacros.h b/sys/cddl/compat/opensolaris/sys/sysmacros.h
index 7f4885b..3c1e9b1 100644
--- a/sys/cddl/compat/opensolaris/sys/sysmacros.h
+++ b/sys/cddl/compat/opensolaris/sys/sysmacros.h
@@ -97,10 +97,6 @@ extern "C" {
 #define	P2SAMEHIGHBIT_TYPED(x, y, type) \
 	(((type)(x) ^ (type)(y)) < ((type)(x) & (type)(y)))
 
-#ifdef _KERNEL
-#define	memmove(dst, src, size)	bcopy((src), (dst), (size))
-#endif
-
 /*
  * Find highest one bit set.
  *      Returns bit number + 1 of highest bit that is set, otherwise returns 0.