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- Subject: Re: [ANN] Lunatik -- NetBSD kernel scripting with Lua (GSoC project results)
- From: Samuel Greear <lua@...>
- Date: Sun, 10 Oct 2010 19:45:41 -0600
On Tue, Oct 5, 2010 at 3:24 PM, Lourival Vieira Neto
> Hi folks,
> I'm glad to announce the results of my GSoC project this year .
> We've created the support for scripting the NetBSD kernel with Lua,
> which we called Lunatik and it is composed by a port of the Lua
> interpreter to the kernel, a kernel programming interface for
> extending subsystems and a user-space interface for loading user
> scripts into the kernel. You can see more details on . I am
> currently working on the improvement of its implementation, on the
> documentation and on the integration between Lunatik and other
> subsystems, such as npf(9), to provide a real usage scenario.
> I'd like to take this space also to publicly thank Marc Balmer, for
> his kind support; prof. Roberto Ierusalimschy, for his comprehension
> and support; and NetBSD developers for their prompt help.
>  http://socghop.appspot.com/gsoc/student_project/show/google/gsoc2010/netbsd/t127230760748
>  http://netbsd-soc.sourceforge.net/projects/luakern/
> Lourival Vieira Neto
I eagerly waited to see the results of this project all summer, I did
peruse the code as soon as you put it up on the google code hosting
My brief notes (from memory):
I didn't see any bindings, maybe there were some, but if I missed them
there can't be very many, Lua in the kernel is fairly useless unless
you can call into the public kernel api.
I didn't like the fact that the only option for loading a script into
the kernel was to load the script source. I would make loading
pre-compiled scripts the preferential method. In fact, I would
probably tear eval out of the kernel lua implementation and only
support loading of precompiled byte-code into the kernel.
I hope you continue working on this, I see potential and at some point
I would like to evaluate this for inclusion in DragonFly BSD.