rem: arch_cpu_user_memcpy(void *to, const void *from, size_t size, addr *faultHandler)
add: arch_cpu_user_memcpy(void *to, const void *from, size_t size, addr *fault_handler)
context: arch_cpu_user_memcpy(void *to, const void *from, size_t size, addr *faultHandler){	char *tmp = (char *)to;	char *s = (char *)from;	*faultHandler = (addr)&&error;	while (size--)		*tmp++ = *s++;	*faultHandler = 0;	return 0;error:	*faultHandler = 0;	return B_BAD_ADDRESS;}