* aix-thread.c (fill_sprs32): Change argument types to "uint32_t *".
Remove obsolete part of comment.
(store_regs_user_thread): Use uint32_t temporaries when calling
fill_sprs32.
(store_regs_kernel_thread): Likewise. Add assertion to verify
correct size of struct ptsprs members.
(aix_thread_xfer_memory): Fix type of myaddr.
(aix_thread_extra_thread_info): Fix compiler warning.
* rs6000-nat.c (rs6000_ptrace64): Change type of buf to "void *".
(fetch_register, store_register): Adapt callers.