Gentoo Archives: gentoo-alpha

From: Brian Parkhurst <brianp@×××××××.net>
To: gentoo-alpha@l.g.o
Subject: RE: [gentoo-alpha] Recent Glibc breaks CPQ-Java?
Date: Mon, 18 Jul 2005 20:16:20
In Reply to: Re: [gentoo-alpha] Recent Glibc breaks CPQ-Java? by Brian Parkhurst
It appears that and a similar fix for the ctype errors with the compaq
extended math library has resolved this issue.

Thanks again.


I've found the following CFLAGS very useful on my Alpha:

CFLAGS=-O3 -mcpu=ev56 -mtune=ev56 -mieee -mno-soft-float -mfp-regs -pipe

(the -mno-soft-float -mfp-regs attempt to use the internal FP components of
the Alpha processor and the -mieee corrects for NAN (not-a-number, e.g.
divide by zero) issues).  

Anyone have other/better optimizations for ev56 class?

-----Original Message-----
From: Brian Parkhurst [mailto:brianp@×××××××.net] 
Sent: Tuesday, July 12, 2005 22:49
To: gentoo-alpha@l.g.o
Subject: Re: [gentoo-alpha] Recent Glibc breaks CPQ-Java?

I appreciate the feedback.  I haven't had the time myself to research and 
thought I'd ask if anyone else had seen it.  Before delving further into it 
and filing a bug report.  (I like to try and figure out the solution or at 
least part way down the path before filing a bug).

I knew the runtime was the old compaq java and have been trying to locate a 
source to a more recent release.  Just some of the stuff I've installed on 
my alpha now doesn't work as the jvm fails.

I'll try the patch when I get another shot at it and report back soonest.

Brian Parkhurst
----- Original Message ----- 
From: "Jose Luis Rivero (YosWinK)" <yoswink@g.o>
To: <gentoo-alpha@l.g.o>
Sent: Sunday, July 10, 2005 4:10 PM
Subject: Re: [gentoo-alpha] Recent Glibc breaks CPQ-Java?

> Hi Brian: > > Sorry for my delayed response ... i'm quite busy lately trying to finish > some real live (tm) issues. > >> I've rebuilt my glibc recently and now I'm getting a >> strange error with java-config. (mainly I did this because the gcc >> version upgraded to 3.3.6 ). >> >> Can't load library "/opt/compaq-jdk-1.3.1/jre/lib/alpha/", >> because /op >> t/compaq-jdk-1.3.1/jre/lib/alpha/ symbol __libc_wait, version >> GLIBC_2 >> .0 not defined in file with link time reference >> Could not create the Java virtual machine. >> >> Any ideas? >> > First of all, i would like to clarify that java related bugs in gentoo > alpha aren't the first in our TODO list. This has a quite simple > explanation: Only java virtual machine actually in portage is > "java-compaq" which is not maintained upstream since 1.3.1, so try to > solve bugs without upstream support and without new 1.4 (or 1.5) java > branch could be very bad idea. > > Summarizing: java bugs are always welcome (of course) but response might > be very slow or non-existant. > > After this, I have to say that last month i was playing with java trying > to make things work on alpha and i found same problem with __libc_wait. > > I found a patch (in some alpha related malling list) that works fine for > me, if you want give it a look: > > - 1. Download the patch > > > - 2. Place where you want, and compile it with: > gcc -shared -o libcwait.c -fpic -O > > - 3. Preload the patch writing at the beginning of > /opt/compaq-jdk/bin/java > LD_PRELOAD=/path-to-file/ > export LD_PRELOAD > > I would appreciate a lot that you report the results, maybe we could > include it into the tree if it solves some of our problems. > > I hope back to have some free time for Gentoo at the end of this month to > continue playing with java and trying to get 1.4 branch in alpha. > > Bye and sorry again for the delay. > > -------------------------------- > YosWinK @ > Gentoo GDP > Gentoo Alpha Dev > > -- > gentoo-alpha@g.o mailing list > >
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