Making LLVM happy: memmove() in the kernel

[Roman Divacky]

On Fri, Feb 27, 2009 at 02:11:55PM +0100, Ed Schouten wrote:
> Hi all,
> 
> The FreeBSD+LLVM folks* noticed Clang generates calls to memmove() by
> itself. I have yet to confirm this, but I assume this is done when
> performing copies of structs greater than a certain size. In our kernel,
> we don't have a memmove() function, but we do have a bcopy().

also.. quoting from
(http://gcc.gnu.org/onlinedocs/gcc-4.2.1/gcc/Standards.html): 

Most of the compiler support routines used by GCC are present in libgcc,
but there are a few exceptions. GCC requires the freestanding environment
provide memcpy, memmove, memset and memcmp.

we were just lucky to not run into this
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