X-Authentication-Warning:	delorie.com: mail set sender to djgpp-bounces using -f
Date:	Wed, 2 Feb 2005 17:47:28 -0500
Message-Id:	<200502022247.j12MlSKI019716@envy.delorie.com>
From:	DJ Delorie <dj AT delorie DOT com>
To:	gordon_schumacher AT maxtor DOT com
CC:	djgpp AT delorie DOT com
In-reply-to:	<71078E41DDE3E541B024832F34BC3D0D4BBE5F@cowexc03.corp.mxtr.net>
	(gordon_schumacher AT maxtor DOT com)
Subject:	Re: Can a *program* know its size and location of code?
References:	<71078E41DDE3E541B024832F34BC3D0D4BBE5F AT cowexc03 DOT corp DOT mxtr DOT net>
Errors-To:	nobody AT delorie DOT com
X-Mailing-List:	djgpp AT delorie DOT com
X-Unsubscribes-To:	listserv AT delorie DOT com

Look for symbols like _text and _etect (use "nm -n prog.ex" to find
them. Their *addresses* demark your program areas, so code like:

      extern char _etext, _text;

      ...

      progsize = &etext - &text;

Alternately, declare them as arrays of char and treat them
like they *are* your program:

     extern char _text[];

- Raw text -