[help] How to test kernel code that I wrote?

[n.borisov.lkml@gmail.com (Nikolay Borisov)]

On 08/24/2016 01:18 PM, Louie Lu wrote:
> Hi everyone,
> 
> I'm now reading *Unreliable Guide To Locking* which came from
> kernelnewbies.org (https://kernelnewbies.org/Documents/Kernel-Docbooks)
> 
> What I want to do is trying run the code that in this doc from 7.1 All
> In User Context.
> 
> In my knowing for kernel programming,
> I'll need to compile the code to something like
> `main.ko` then insert into kernel space using `insmod`.
> 
> Here is the GitHub that I'm doing PoC code:
> https://github.com/grapherd/unreliable_guide_to_locking
> 
> My question is,
> Is my knowing right?
> and, how can I use the function in main.ko (e.g. cache_add).
> I'm using these function by test.ko, is that a normal way to use it?
> 
> in this doc have mention, there have hardirq, softirq.
> How can I test it from these irq method?
> 

You have to create some sort of an interface which utilizes those kernel
function. That might be IOCTL or procfiles or debugfs or any other
number of UM<=>KM interfaces.


> 
> Thanks!
> Louie Lu.
> 
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