X-Recipient:	archive-cygwin AT delorie DOT com
DKIM-Filter:	OpenDKIM Filter v2.11.0 sourceware.org 23F6F3858D34
DKIM-Signature:	v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com;
	s=default; t=1708523137;
	bh=xnAB1Aie+Q6xpewfmvZ75Yj5GJjcSJbRppF7CVly9Ug=;
	h=Date:To:Subject:References:In-Reply-To:List-Id:List-Unsubscribe:
	List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:Cc:
	From;
	b=l/R6PnR37EFz5FY9fihnBlsdUsg/3Jsqklt9wxYYAfoxc/DNXar4bgzrsmLawQEak
	AmJexjUWgbBNIim/DcKCHd/SmB5rO90k99AXsTnQHEm4GnHtz8XRTsvaTK7+fD8jJk
	7oHo9SzyPTycvC+0p9jxDkqB7S877yOHtMwp+xDY=
X-Original-To:	cygwin AT cygwin DOT com
Delivered-To:	cygwin AT cygwin DOT com
DKIM-Filter:	OpenDKIM Filter v2.11.0 sourceware.org 3E6563858D20
Date:	Wed, 21 Feb 2024 14:45:10 +0100
To:	cygwin AT cygwin DOT com
Subject:	Re: binutils >= 2.41 makes .rsrc section read-only
Message-ID:	<ZdX-Zns0NCc3aPOs@calimero.vinschen.de>
Mail-Followup-To:	cygwin AT cygwin DOT com
References:	<alpine DOT BSO DOT 2 DOT 21 DOT 2402192133050 DOT 95909 AT resin DOT csoft DOT net>
	<ZdR7tLdneF0Eode_ AT calimero DOT vinschen DOT de>
	<alpine DOT BSO DOT 2 DOT 21 DOT 2402202132090 DOT 95909 AT resin DOT csoft DOT net>
	<ZdW0AIGlzheTdrOA AT calimero DOT vinschen DOT de>
MIME-Version:	1.0
In-Reply-To:	<ZdW0AIGlzheTdrOA@calimero.vinschen.de>
X-BeenThere:	cygwin AT cygwin DOT com
X-Mailman-Version:	2.1.30
List-Id:	General Cygwin discussions and problem reports <cygwin.cygwin.com>
List-Unsubscribe:	<https://cygwin.com/mailman/options/cygwin>,
	<mailto:cygwin-request AT cygwin DOT com?subject=unsubscribe>
List-Archive:	<https://cygwin.com/pipermail/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-request AT cygwin DOT com?subject=help>
List-Subscribe:	<https://cygwin.com/mailman/listinfo/cygwin>,
	<mailto:cygwin-request AT cygwin DOT com?subject=subscribe>
From:	Corinna Vinschen via Cygwin <cygwin AT cygwin DOT com>
Reply-To:	cygwin AT cygwin DOT com
Cc:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
Errors-To:	cygwin-bounces+archive-cygwin=delorie DOT com AT cygwin DOT com
Sender:	"Cygwin" <cygwin-bounces+archive-cygwin=delorie DOT com AT cygwin DOT com>
X-MIME-Autoconverted:	from base64 to 8bit by delorie.com id 41LDjc84023401

On Feb 21 09:27, Corinna Vinschen via Cygwin wrote:
> On Feb 20 21:39, Jeremy Drake via Cygwin wrote:
> > On Tue, 20 Feb 2024, Corinna Vinschen wrote:
> > 
> > > On Feb 19 21:41, Jeremy Drake via Cygwin wrote:
> > > > 1) is there actually a good reason that _cygheap_start is in the .rsrc and
> > > > not the .cygheap section?
> > >
> > > As you know we got rid of this way to define the cygheap, but
> > > _cygheap_start was just defined this way so it's the address marking
> > > the start address of the cygheap.
> > >
> > > It was just the way it was.  It's probably just as well to move
> > >
> > >   _SYM (_cygheap_start) = .;
> > >
> > > to the begining of the .cygheap section.  Did you try?
> > 
> > I hadn't; I have now and it seems to work fine.
> 
> I'm glad to read that.
> 
> > I basically assumed there
> > was some reason I wasn't aware of for putting it in the .rsrc section, so
> > focused more on trying to figure out how to get binutils to clear the
> > readonly section flag.  When I couldn't figure that out, I figured I'd ask
> > here both about the "institutional knowledge" if there was a known reason
> > why it needed to be in the .rsrc section and because I figured some people
> > knowledgable in binutils pe stuff might also read this and be able to give
> > me another idea on making the .rsrc section read/write again if it did
> > need to stay in that section.
> 
> I think there was some historical reason to put in .rsrc, or rather,
> into the section preceeding .cygheap, but I don't remember what it was.
> Might have had something to do with stripping the cygwin DLL or some
> such...

Actually, searching the history shows commit ce95c6407ef6a from
2005-06-01, which moves the definition of __cygheap_start from
the .cygheap section to the .idata section.  However, the commit
message only contains the hint "cygwin.sc: Modernize. [...]"
There's no other reason given ¯\_(ツ)_/¯


Corinna

-- 
Problem reports:      https://cygwin.com/problems.html
FAQ:                  https://cygwin.com/faq/
Documentation:        https://cygwin.com/docs.html
Unsubscribe info:     https://cygwin.com/ml/#unsubscribe-simple

- Raw text -