- Use intptr_t in place of long as the word type in the core copying
loop where aligned words a copied. This preserved the provenance of
any copied pointers.
- When working with the address of src or dst use ptraddr_t rather than
uintptr_t. This avoid ambigious provenance in expressions involving
multiple addresses.
As a minor tweak, rename the function to memmove since that is the
interface it implements (overlapping src and dst are permitted) and make
memcpy the alias rather than the other way around.
Reviewed by: kib, markj
Effort: CHERI upstreaming
Sponsored by: Innovate UK
Differential Revision: https://reviews.freebsd.org/D57965
Brooks Davis
17602eb3ea