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Message-ID:	<3C7967F6.D063DCD4@yahoo.com>
Date:	Sun, 24 Feb 2002 17:23:50 -0500
From:	CBFalconer <cbfalconer AT yahoo DOT com>
Organization:	Ched Research
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To:	djgpp-workers AT delorie DOT com
Subject:	Re: Malloc/free DJGPP code
References:	<10202201713 DOT AA23034 AT clio DOT rice DOT edu> <3C7919F2 DOT 96FFA97D AT yahoo DOT com> <200202241740 DOT g1OHeOd19302 AT envy DOT delorie DOT com>
Reply-To:	djgpp-workers AT delorie DOT com

DJ Delorie wrote:
> 
> > This could all be cured by a semi-portable implementation of, say,
> > "fakesbrk" which will return a repeatable set of addresses under
> > the same circumstances.  It might actually malloc a large block
> > which contains those addresses to be faked.  But how can it ensure
> > that a certain range is available to any degree of certainty, or
> > even of probability?
> 
> Put a huge uninitialized static array in your program and use it for
> sbrk.  It will always be in the same virtual address.

Sounds good.  Won't that also be link order and main program
declaration sensitive, though?  Since all this is system specific
I guess there is no need for it to port over systems, but that
would be nice.

-- 
Chuck F (cbfalconer AT yahoo DOT com) (cbfalconer AT XXXXworldnet DOT att DOT net)
   Available for consulting/temporary embedded and systems.
   (Remove "XXXX" from reply address. yahoo works unmodified)
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