类似于SIGALRM, 但是计算的是该进程占用的CPU时间....在signal_handle()函数中,我们得要想办法拿到当前执行的代码信息。..., t->uc_mcontext.arm_r1, t->uc_mcontext.arm_r2,
t->uc_mcontext.arm_r3, t->uc_mcontext.arm_r4..., t->uc_mcontext.arm_r5,
t->uc_mcontext.arm_r6, t->uc_mcontext.arm_r7, t->uc_mcontext.arm_r8...,
t->uc_mcontext.arm_r9, t->uc_mcontext.arm_r10, t->uc_mcontext.arm_fp,
t->uc_mcontext.arm_ip