在设备驱动程序(函数)Dev_drv1中,对指针ptr的说明如下:【C语文代码】int Dev_drv1(int arg1,int arg2 ){struct node
__switch_to()执行结束调用ret指令返回为啥会进入ENTRY(ret_from_fork)过程,一切尽在copy_thread_tls()函数的设置,以下是对该函数的部分注释:int copy_thread_tls(unsigned long clone_flags, unsigned long sp, unsigned long arg, struct task_struct *p, unsigned long tls){ int err; struct pt_regs *ch...