rem: *faultHandler = 0;
add: *fault_handler = 0;
context: arch_cpu_user_strncpy(char *to, const char *from, size_t size, addr *faultHandler){	*faultHandler = (addr)&&error;	while(size-- && (*to++ = *from++) != '\0')		;	*faultHandler = 0;	return 0;error:	*faultHandler = 0;	return B_BAD_ADDRESS;}