Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!usc!ucsd!ucbvax!ulysses!ulysses.att.com!ekrell
From: ekrell@ulysses.att.com (Eduardo Krell)
Newsgroups: comp.unix.internals
Subject: Re: what is in sysV v4?
Message-ID: <14455@ulysses.att.com>
Date: 13 Mar 91 14:54:02 GMT
References: <27919@netcom.COM>
Sender: netnews@ulysses.att.com
Organization: AT&T Bell Labs
Lines: 17

In article <27919@netcom.COM> aed@netcom.COM (Andrew Davidson) writes:

>I currently work on a SUN
>workstation using sunos 4.1. it supports "dynamic linking" but I would
>argue that this is not true dynamic linking as it only accures when my
>program loads. I would link to be able to link and load on the fly

You can do that already. Look at the mmap() man page. The run-time loader
(ld.so) runs in user space, so anything it does, you can do too (mmap
whatever you want to load, relocate symbols, etc.)

Sun provides in 4.1.1 a simple dynamic linker interface library with
dlopen(), dlsym(), etc.  These are also available in SVR4.
    
Eduardo Krell                   AT&T Bell Laboratories, Murray Hill, NJ

UUCP: {att,decvax,ucbvax}!ulysses!ekrell  Internet: ekrell@ulysses.att.com