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From: jim@ghs.com (Jim Gleason)
Newsgroups: comp.realtime,comp.lang.ada
Subject: Re: AdaMULTI/Ada 95 for Bare Board
Date: 5 Mar 2002 05:27:37 -0800
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john.mccabe@emrad.ns.com (John McCabe) wrote in message news:<3c83596e.9029553@news.demon.co.uk>...
> Watch out for allocation of huge stack areas for aggregate assignments
> to arrays...
> 
> e.g.:
> 
> type Large_Array is array (1..100, 1..10, 1..1000) of integer;
> My_Large_Array : Large_Array;
> 
> procedure Initialise
> begin
>     My_Large_Array = (others => 0, others => 0, others => 0);
> end Initialise;
> 
> 
> will attempt to allocate a 4MByte or so block of stack to create an
> aggregate before copying it to the global variable (My_Large_Array).
> Green Hills claim it is *required* by the RM, but certain people who
> were involved in writing the manual disagree!

I don't believe Green Hills claimed this.  Actually, the last two
releases of the Green Hills compiler do NOT use a block of stack
to temporarily hold the initial value before copying into the
global variable.  The global variable (My_Large_Array) is initialized
directly by the generated code.
I hope this clears this up.

Jim Gleason
Green Hills Software, Inc.