modifying system call table would require you to compile the kernel again and again. If you really want to quickly test for these experimentation, I would suggest try making some /proc files in procfs, you will be more productive this way. Also learning procfs is fun exersize too :), I find it quicker and more usable interface to learn things with experiments faster.
Thanks,
Rajat
On Wed, Oct 27, 2010 at 1:48 AM, Gustavo Silva <silvagustavosilva@xxxxxxxxx> wrote:
Hello my friends,
At this moment I'm reading the Process management chapter of Linux
Kernel Development Third edition so I'm thinking about some exercises
in order to get the most out of the lecture.
I'm thinking about to implement a System call that receives a Process
ID as input and gives as output all the parents of the process. So
once I have the syscall I will implement a simple user-space program
to interact with the syscall.
I want to get familiar with the task_struct and the thread_info so the
idea is to iterate over the task list in order to get the parents of
any process.
Any of you could suggest me some nice exercises to help me understand
as much as possible of process management at the kernel-space level?
Actually I'm thinking about syscalls because I have succesfully
implemented some before, but it could also be a module implementation
to interact with the kernel.
In advance thank you very much.
Best regards.
Gustavo Silva.
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