Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!utgpu!water!watnot!watmath!clyde!rutgers!husc6!linus!philabs!rdin!perl
From: perl@rdin.UUCP
Newsgroups: comp.unix.wizards
Subject: Dynamic function loading
Message-ID: <600@rdin.UUCP>
Date: Fri, 10-Apr-87 13:35:08 EST
Article-I.D.: rdin.600
Posted: Fri Apr 10 13:35:08 1987
Date-Received: Sun, 12-Apr-87 05:45:46 EST
Organization: Resource Dynamics Inc., New York
Lines: 25

I posted this request several months ago but our news reception went
flakey after the newsgroup reorganization and if I got any responses,
my system lost them.  So, if you have any information on this, please
let me know, even if you already sent it to me.

A number of people have pointed out that UNIX has the ability to link
functions into a running program.  Pointers have been given to look at
the documentation for the -A and -T options of ld(1).  Well, I and a
number of other netters have stared at the documentation as long as our
little brains can stand and the bright flash of light that was promised
hasn't come to us.  I know someone out there knows how this works since
Franz Lisp does it.  I can dig that you use "ld -A -T" to create a file
that can be loaded into a specific location within a running process,
but what do you do to do the actual loading?  Exec? What strange
arguments or calling sequences do I have to know about?

As I have already recieved a number of responses requesting the results
of this query, I will post a summary.

Thank you.

Robert Perlberg
Resource Dynamics Inc.
New York
{philabs|delftcc}!rdin!perl