DMARC-Filter:	OpenDMARC Filter v1.4.2 delorie.com 4ALIFmFa4164730
Authentication-Results:	delorie.com; dmarc=pass (p=none dis=none) header.from=cygwin.com
Authentication-Results:	delorie.com; spf=pass smtp.mailfrom=cygwin.com
DKIM-Filter:	OpenDKIM Filter v2.11.0 delorie.com 4ALIFmFa4164730
Authentication-Results:	delorie.com;
	dkim=pass (1024-bit key, unprotected) header.d=cygwin.com header.i=@cygwin.com header.a=rsa-sha256 header.s=default header.b=T8ivGFzL
X-Recipient:	archive-cygwin AT delorie DOT com
DKIM-Filter:	OpenDKIM Filter v2.11.0 sourceware.org 4FA983857733
DKIM-Signature:	v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com;
	s=default; t=1732212946;
	bh=orFHQ8QU7RSPuJccI4uGityD3iXUoZC0XNb4q77FvCQ=;
	h=Date:To:cc:Subject:In-Reply-To:References:List-Id:
	List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe:
	From:Reply-To:From;
	b=T8ivGFzLebxLHw5PPJMRR2fYZvmfRya64Nr/3PWm9ns/z8pJrJxKWhdT6Ig9Dim7/
	WImKesTDJ267DGClfgzfdunHhXFj9Q8JUm/tr0wirijoo3zEs9ly9Ukcu3CC/IR9VU
	19hjyawt1cSrobSNO/mYNNPSHe0M0DkdkwnvSifQ=
X-Original-To:	cygwin AT cygwin DOT com
Delivered-To:	cygwin AT cygwin DOT com
DMARC-Filter:	OpenDMARC Filter v1.4.2 sourceware.org 2736D3857B9E
ARC-Filter:	OpenARC Filter v1.0.0 sourceware.org 2736D3857B9E
ARC-Seal:	i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1732212917; cv=none;
	b=YN0LUKr52zVPEuszMPhuUzc6SZ6BuD3QL3Flz5mn4fIYTqguY6oGlb2K4H9HYBayjxbzMoQzhqvSn96RyRGztKDjNlI4xprEyR9frNXs8hDDk9W5m3fhV6W2ALSgkRrVDumvqO7kJJ6tYko04DsVE33gGzsUEcdusV8fJdZPN6g=
ARC-Message-Signature:	i=1; a=rsa-sha256; d=sourceware.org; s=key;
	t=1732212917; c=relaxed/simple;
	bh=eGBP30lVBJrDfe4Y2og+t9YlhPUTE38O59Ps2IXEAPA=;
	h=DKIM-Signature:Date:From:To:Subject:Message-ID:MIME-Version;
	b=Lwunejo95+qd54tcKqmdKMeKxxaR8EaSZzxVR5tXFH/mIOQYzNzMYrzZgEF/116/HT2LSIE/IDy++1ZpucVOjf7hqEyxuf2IGgDSAtVl3kz2hFV2xJ7BOXJ6ZesnFaD2sstsAGj2Qt9eGDibS1hCJwHCjgkUUJeRBH5AQImI04I=
ARC-Authentication-Results:	i=1; server2.sourceware.org
DKIM-Filter:	OpenDKIM Filter v2.11.0 sourceware.org 2736D3857B9E
Date:	Thu, 21 Nov 2024 10:15:16 -0800 (PST)
X-X-Sender:	jeremyd AT resin DOT csoft DOT net
To:	Corinna Vinschen via Cygwin <cygwin AT cygwin DOT com>
cc:	Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
Subject:	Re: include tag in uname -s for ARM64 hosts
In-Reply-To:	<Zz8HHI9R5rT_iUvU@calimero.vinschen.de>
Message-ID:	<cfc333ca-9b60-6af2-cfea-553b42ea8a08@jdrake.com>
References:	<833327a2-3a62-ed26-e4ba-5302bcdb8000 AT jdrake DOT com>
	<Zz8HHI9R5rT_iUvU AT calimero DOT vinschen DOT de>
MIME-Version:	1.0
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:	Jeremy Drake via Cygwin <cygwin AT cygwin DOT com>
Reply-To:	Jeremy Drake <cygwin AT jdrake 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>

On Thu, 21 Nov 2024, Corinna Vinschen via Cygwin wrote:

> > i686	x86_64	-WOW64-x64 (or omit arch to match existing?)
>
> Just -WOW64
>
> For backward compat and it's a sole representative of an intel-intel
> emulation anyway.  I think we may safely ignore "WOW"
>
> > i686	ARM64	-WOW64-ARM64
>
> Just -ARM64
>
> The suffix already indicates an emulator, the target CPU is in the
> machine field.
>
> > ARM	ARM64	-WOW64-ARM64
>
> Apart from not supporting 32 bit targets anymore (the tiny address space
> is simply not feasible anymore) just -ARM64.  Again, the target CPU is
> in the machine field.


Interesting.  So basically disregard the wincap.is_wow64 (which is gone
anyway in supported versions), and only look at the host arch, appending a
tag only when it's different from Cygwin's own arch, with the special case
that x64 is called "WOW64"?  (Maybe the special case should be if the host
is x64 AND Cygwin is i686, otherwise use x64, just in case MS does
something useful like adding ARM64 emulation to x86_64)

-- 
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 -