On Tue, Oct 5, 2010 at 3:24 PM, Lourival Vieira Neto <lourival.n...@gmail.com> wrote: > Hi folks, > > I'm glad to announce the results of my GSoC project this year [1]. > 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 [2]. 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. > > [1] > http://socghop.appspot.com/gsoc/student_project/show/google/gsoc2010/netbsd/t127230760748 > [2] http://netbsd-soc.sourceforge.net/projects/luakern/ > > Cheers, > -- > 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 site. 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. Best, Sam