>Maybe it's an odd question:
>
>I'm making some test on module programming to accomplish a simple purpose
>which is based on the el
ementary structure of a module (such as _init, _fini , _info......).And the
purpose is:
>
>TO EXECUTE AN EXTERNAL COMMAND WHEN THE MODULE IS LOADED
You cannot do that.
In your particular case, the exec code will inside a process; but normally
it will be loaded inside the kernel (i.e., w/o a process)
>
> char arg0[] = "ls ";
> char arg1[] = "-l ";
> char arg2[] = "/ ";
> char arg3[] = ">> ";
> char arg4[] = "/tmp/abc.txt";
> char arg5[] = "\0";
> const char *argp[6] = {arg0,arg1,arg2,arg3,arg4,arg5};
You're using shell (>> ....) and you're not invoking the shell.
>1.The function exec_common cannot be called in such a way?
No; it's a private function and it should not be called from
drivers.
>2.The kernel doesn't allow the kernel space to execute an external function
>when module loaded?
We don't protect again calling wrong functions.
>3.If I stick to accomplishing my purpose,how?
You can't; that is, you cannot start a program from inside your module.
What exactly do you want to do?
Casper
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