Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!tut.cis.ohio-state.edu!ntvax!iex!neptune!bert
From: bert@neptune.iex.com (Bert Campbell)
Newsgroups: comp.os.msdos.programmer
Subject: Overlays
Summary: Linker recommendations requested
Keywords: linker overlay
Message-ID: <1990Jul25.211808.29645@iex.uucp>
Date: 25 Jul 90 21:18:08 GMT
Sender: news@iex.uucp (USENET news)
Organization: IEX Corporation, Dallas
Lines: 15

I'm using MSC 5.0 and the linker that is supplied with it (3.61)
to create overlays in a big large-model program.  At first I couldn't
get them to work at all, but we finally figured out that functions in overlays
called via a function pointer wouldn't work with this linker.  Along with
that are other limitations that make a better linker a requirement.

I'm looking for general experiences with other linkers for creating
large "heavily overlayed" programs.  Recommendations for a particular
linker (RTLink? PLink?) with accompanying reasons would be a help.

In partiicular, do any of the "advanced" linkers allow you to put
the same object in more than one overlay?  Other pitfalls to look out for?


Bert Campbell  {uunet|convex}!iex!bert    214 612-2600