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From: Zefram <zefram@dcs.warwick.ac.uk>
To: hzoli@ny.frontiercomm.net (Zoltan Hidvegi)
Cc: wjf103@york.ac.uk, zsh-workers@math.gatech.edu
Subject: Re: modules!??
Date: Thu, 5 Jun 1997 18:33:10 +0100 (BST)	[thread overview]
Message-ID: <10020.199706051733@jelly.dcs.warwick.ac.uk> (raw)
In-Reply-To: <199706050545.BAA06291@hzoli.home> from "Zoltan Hidvegi" at Jun 5, 97 01:45:23 am

Zoltan Hidvegi wrote:
>                  Perhaps the output of zmodload should include the
>statically linked modules as well (with some indication that this module is
>static).

Probably a good idea.  It should refuse to load the redundant dynamic
module, and refuse to unload the static module.

>Deltochar have a similar problem, it wants to use the zmod symbol exported
>by the zle module.  The symbols defined by a module can be discovered using
>dlsym even on these systems, so we may find some way to overcome this
>limitation.  I think it is possible to do that with some script-generated C

How?  Would this be a case of #defining all imported symbols to
(*symbol_table[SYMBOL_NUM]) and having the module base manage home-made
symbol tables?  If so, what do we do about systems where there are
several sizes of pointer?

>                 The imported function list is hard to portably generate
>automatically,

What's wrong with `nm obj.o | grep " U "` and comparing against the
lists of exported symbols?  This could even be used to generate module
dependencies automatically.

-zefram


  reply	other threads:[~1997-06-05 17:39 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1997-06-05  1:35 modules!?? Wez Furlong
1997-06-05  5:45 ` modules!?? Zoltan Hidvegi
1997-06-05 17:33   ` Zefram [this message]
1997-06-05 18:24     ` modules!?? Zoltan T. Hidvegi
1997-06-05 19:11       ` modules!?? Zefram
1997-06-05 19:22         ` modules!?? Zoltan T. Hidvegi
1997-06-05 19:46         ` modules!?? Zoltan T. Hidvegi
1997-06-07 19:48         ` modules!?? Stefan Monnier
1997-06-08 11:49           ` modules!?? Zefram
1997-06-05 12:33 modules!?? Wez Furlong
1997-06-05 14:17 ` modules!?? Peter Stephenson

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