linux/alpha/get_syscall_result.c

static int
get_syscall_result_regs(struct tcb *tcp)
{
	return (upeek(tcp->pid, REG_A3, &alpha_a3) < 0 ||
		upeek(tcp->pid, REG_R0, &alpha_r0) < 0) ? -1 : 0;
}