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From: stickler@cc.helsinki.fi
Newsgroups: comp.lang.perl
Subject: Re: unexec() with perl
Message-ID: <4116.275642e9@cc.helsinki.fi>
Date: 30 Nov 90 11:30:49 GMT
References: <312@pepper.rc.nokia.fi> <109153@convex.convex.com>
Organization: University of Helsinki
Lines: 38

In article <109153@convex.convex.com>, tchrist@convex.COM (Tom Christiansen) writes:
> In article <312@pepper.rc.nokia.fi> stickler@rc.nokia.fi (Patrick Stickler RC 910) writes:
>>Has anyone already patched perl with the GNU Emacs unexec()
>>function in place of abort(). It seems that this would be the
>>thing to do for the perl dist itself - it saves us from having
>>to mess with undump!
> 
> I have, and have run this way for maybe a year.
> 
> If you look at PL40, if you -DUNEXEC you will get a function defined
> called myunexec(), which is the code I wrote as a front end for unexec()
> Whether it really sets things up right for YOUR architecture I don't know.
> You will have to add unexec.c from the GNU distribution.  It works for
> me.  I'm interested in hearing from others on their experiences.
> 
> --tom

One problem that arises is that anything later than PL37 won't compile
under SCO XENIX/286. There are just too many changes after PL37 that
haven't had time to sort themselves out on all platforms.

Another problem is that I am no hacker. Could you (pleeeeease) suggest
what steps would be necessary to incorporate your myunexec() function,
the GNU unexec.c and PL37??

I have the PL40 dist, so I guess I'll just need to copy your myunexec()
function to the PL37 dist, add the neccessary preprocessing commands
for -DUNEXEC, and compile/link the GNU unexec.c into perl, right?

I really wish Larry Wall would incorporate this 'stand-alone' feature
as an official part of perl. It seems that *alot* of people want it.

If you can help me (just a little) with this, I will be *very* grateful.


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  Patrick Stickler  University of Helsinki   stickler@cc.helsinki.fi
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