is used to set the ELF size attribute for functions. It isn't normally critical but some things can make use of it (gdb for stack traces). Valgrind needs it so I'm adding it in. The problem is present on all branches and on both i386 and amd64.
translation from i386.
memmove, and memset. PR: 73111 Submitted by: Ville-Pertti Keinonen <will@iki.fi> (taken from NetBSD) MFC after: 3 weeks