Kernel Mocking

[Kenneth Adam Miller]

Thanks for your expedient answer!

So, I was discussing an alternative to mocking; function hooking. But in a
benign way. Is there any way to, at runtime replace the functionality of
code in order that you specify what it does for any given kernel function?

On Fri, Feb 20, 2015 at 3:24 PM, Greg KH <greg at kroah.com> wrote:

> On Fri, Feb 20, 2015 at 02:51:25PM -0500, Kenneth Adam Miller wrote:
> > So, in userland development, the idea of mocking is used to isolate
> context
> > management and machine configuration into a single class or set of
> functions
> > that can be reused, and also facilitate testing much easier. Google mock
> is a
> > great example.
> >
> > Say I develop a kernel module, and I want that module to have some
> result X
> > after some returned result, whatever that might be. Is there anything
> similar
> > for kernel code?
>
> Not really, sorry.  Running in the kernel means you don't have much room
> for "simulation".  But you can use qemu, or other virtual machines and a
> debugger to test your code if you really want to.
>
> Good luck!
>
> greg k-h
>
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