jdk1.5 and sparc

On Mon, Sep 04, 2006 at 08:49:43PM +0200, Johan Vos wrote:
> Hi,
> 
> I did the port to Linux/SPARC for JDK 1.2, but I don't
have a performant 
> Linux/Sparc machine anymore and 1.5 is very different
from 1.2. Apart 
> from that, I don't think there is a huge interest in
Linux/SPARC 
> anymore, as Solaris indeed moved to Open Source.
> 
> - Johan

I have a sparc as my main gateway. I have linux on it and
plans to keep
it like this.

I've been bitten by the java JVM 1.4.1b not in shape.

I've tried to recompile from JVM 1.2, which went almost to
the end
(there is some problem with a float to text conversion wich
makes the
build choke).

This one is almost ok. But almost is not ok. I don't know
if there are
more bugs lurking behing the surface.

I've been able to build it because the sources were
available.

For 1.3, 1.4 and 1.5, the diffs against the source are not
even
available.

Don't know why. Licence didn't changed, and diffs of
previous JVM were
released, leading me to the conclusion that it was ok to
release diffs
against the SUN source.

The hotspot client and server VM has already been ported on
the
linux/sparc architecture but noone seems to maintains it
anymore.

Some people released a beta or some earlier work, but no
final version
were ever released for arch other than x86 and x86-64.

There seems to be lacking some continuity in the
blackdown's efforts.

However, I'm confident that the efforts needed to
reactivate the
java port should be minimal.
Maybe a refresh build for 1.4.1b to make it work with the
new glibc
should be enough to have a working port again. At least
enough to use
J2EE and tomcat (which is the most needed apps on
sparc/linux).

Look at the BSD effort, they keep the diffs available
against all java
JVM.

This is IMHO the way to go. If we only could have the diffs
of the
impressive work the blackdown team did, it would be a great
step toward
a working JVM for sparc.


	Seb


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