Re: [Prex-devel] Anyone still around?

[Eli H. <eh...@ve...>]

Hello Richard,

It is good to hear that someone is still interested in Prex. I'm also wanting to use Prex for embedded projects using a micro kernel architecture similar to Minix. I will take a look at ELCC. I am still working on the layers above and considering if I can use LLVM to provide a base for a language like Erlang/Elixir that will run on atop a bare metal type of kernel as you described, possibly Prex or a heavily modified Minix kernel (if it comes to it).

Keep on exploring and let's keep the channel open for mor dialogues.

Eli


> On Jan 3, 2015, at 02:51, Richard Pennington <ri...@pe...> wrote:
> 
> Hi,
> 
> I know this list was been quiet for some time, but I thought that there 
> might still be some interest is some Prex related work that I've been doing.
> I have been developing a cross compilation tool chain based on 
> clang/LLVM for ARM, Mips, PowerPC, and x86 processors. I call the 
> project ELLCC (pronounced "elk") http://ellcc.org
> The project currently fully supports C and C++ compilation for all the 
> target processors running Linux. I also want to support bare metal 
> development on all the targets, so I started a sub-project called ELK 
> ("Embedded Little Kernel") for that purpose. The goal of ELK is to use 
> the same C/C++ run-time libraries (using the BSD or BSD-like licensed 
> libc++, musl, and compiler-rt) for both the Linux and ELK environments 
> and it has been coming along very well.
> About a month and a half ago I decided I wanted to add file system 
> support to ELK and after some googling I stumbled across Prex. I was 
> very impressed by the design and clarity of the code, so I decided to 
> borrow some of it for my ELK project. I won't go into too much detail 
> here, but here's what I've done so far:
> * Incorporated the Prex file system, console/tty and VM code (both MMU 
> and non-MMU).
> * Cleaned up a few minor design issues (e.g. vnode locks can be read 
> only or R/W, no schedule_lock(), finer grained locking)
> This week I added networking support by incorporating the LwIP TCP/IP 
> stack. (It currently can only communicate on 127.0.0.1 because I haven't 
> added Ethernet drivers yet.)
> 
> The current incarnation of ELK only runs on ARM. I'd like to add the 
> glue for the other targets soon as time allows.
> 
> Just thought you'd like to know that Prex lives on.
> 
> -Rich
> 
> 
> ------------------------------------------------------------------------------
> Dive into the World of Parallel Programming! The Go Parallel Website,
> sponsored by Intel and developed in partnership with Slashdot Media, is your
> hub for all things parallel software development, from weekly thought
> leadership blogs to news, videos, case studies, tutorials and more. Take a
> look and join the conversation now. http://goparallel.sourceforge.net
> _______________________________________________
> Prex-devel mailing list
> Pre...@li...
> https://lists.sourceforge.net/lists/listinfo/prex-devel