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From: sethr@cbnewsl.att.com (seth.r.rosenthal)
Newsgroups: comp.unix.internals
Subject: Re: Shareable Images/dynamic binding possible with Unix?
Summary: SVR4 ABI
Keywords: vms
Message-ID: <1991Mar1.171913.2975@cbnewsl.att.com>
Date: 1 Mar 91 17:19:13 GMT
References: <598@bellahs.UUCP>
Organization: AT&T Bell Laboratories
Lines: 19

In article <598@bellahs.UUCP>, neff@bellahs.UUCP (Dan Neff) writes:
> Please respond to this article in the appropriate news group. Our
> e-mail has been bouncing mail lately and I don't want to miss
> any of your valuable responses.
> 
> We would like to know if it is possible to have/implement shareable images
> in the Unix environment similar to the VMS implementation with
> the LIB$FIND_IMAGE_SYMBOL library call. I believe the same functionality
> exists in Unix with dynamic binding, but this is a difficult topic
> to find information on in the Unix environment.

I won't comment on comparability to VMS, but UNIX System V Release 4
has dynamically linked shared libraries.  A good place to find
information about the facility, and how it ties into the Elf
object format is the SVR4 Generic ABI, available from Prentice-Hall.
Any of the processor supplements will explain some of the architecture
dependant details for various platforms.

	Seth Rosenthal