Nougat 7.0  |  7.0.0_r31
C++程序  |  7行  |  168 B 

static int
get_syscall_result_regs(struct tcb *tcp)
{
	/* new syscall ABI returns result in R0 */
	return upeek(tcp->pid, 4 * REG_REG0, (long *)&sh_r0) < 0 ? -1 : 0;
}