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Newsgroups: comp.lang.ada
Date: Mon, 20 Apr 2020 13:48:18 -0700 (PDT)
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Subject: Re: How to emulate multiple exports
From: Jere <jhb.chat@gmail.com>
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Xref: reader01.eternal-september.org comp.lang.ada:58438
Date: 2020-04-20T13:48:18-07:00
List-Id: <comp.lang.ada>

On Monday, April 20, 2020 at 2:27:22 AM UTC-4, Egil H H wrote:
> On Monday, April 20, 2020 at 1:53:14 AM UTC+2, Jere wrote:
> > I am working in a space constrained environment (256k flash)
> > and I want to try and reuse the same exported function for
> > all of my unused interrupt handlers.
> > 
> > However, the Export aspect/pragma can only
> > be specified once for Default.  I've tried 
> > a few different solutions but all of them
> > are not really desirable.
> > 
> > So is there any way to do this?  Or am I just
> > stuck with all the code bloat?
> > 
> 
> 4. Let the linker do it.
> GNAT/GCC, at least, can duplicate symbols using the --defsym=alias=original command line parameter.
> 
> You can find a working example at https://gist.github.com/egilhh/ff0e4ffd8184e85dc4865194977f3185
> 
> (This worked on my linux laptop, at least)
> 
> -- 
> ~egilhh

Thanks!  I'll try it out.  One of the symbols is weak, so we'll 
have to see how that interacts.