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From: "Luke A. Guest" <laguest@archeia.com>
Newsgroups: comp.lang.ada
Subject: Re: Return unconstrained types in ZFP
Date: Sun, 2 Dec 2012 18:13:39 +0000 (UTC)
Organization: Aioe.org NNTP Server
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Date: 2012-12-02T18:13:39+00:00
List-Id: <comp.lang.ada>

You need to define a small secondary stack, this can be defined in the linker
script and then imported into the correct package. This is the only way to
return unconstrained types. If you look in s-secsta you will see what needs to
be defined, you can implement it in a very basic way, it does not need to be
as complex as the system version.

Also, you need the memory allocation functions, if AVR Ada provides memcpy,
bzero, etc. just import them, see the runtime sources again for how it does this
on Linux. Otherwise, you will have to write your own.

Luke.