[kaffe] Artistic license request

Reini Urban rurban at x-ray.at
Tue Sep 9 14:25:53 PDT 2008


I'm trying to convert JVM classfiles to run under parrot.
I do not try interpret or jit the bytecode, I just read the classfiles, 
convert it offline to our internal representation and compile this then 
to our optimized bytecode/jit/executable which is register based.
So I don't need to verify and interpret the class files, just read it.

A colleague already did that for .NET, so JVM is no big deal.

The problem I have is that I'd like to use some parts of your 
sourcecode, just the classreader and some headers with the basic 
structs, and I want to ask if it's possible to release that under the 
Artistic license 2.0 for this project.
Otherwise I would have to rewrite it from scratch, because parrot does 
not accept the GPL or LGPL alone.

No big deal, writing the op specs into our format from the vmspec is 
most of the work, but it would help a bit. Pasting the structs from the 
vmspec html or pdf is too stupid, and there's a tiny bit of logic also 

My work where I would need it:

The License:

The files:
readClass.c readClass.h
and the sources for readInterfaces, readFields, readMethods and 
readAttributes and such.
Those are Copyright (c) 1996, 1997, 1998, 1999
Transvirtual Technologies, Inc.  All rights reserved.

As reference J.Worthington's Dissertation Paper on net2pbc

We can convert about 70% of the .NET mscorlib.dll and the other System 
libs, for JVM I believe we should reach 80%, because the JVM is a bit 
simplier than .NET.
perl6 and all the other parrot langs can use then compiled Java and .NET 
Reini Urban

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