DMARC-Filter: OpenDMARC Filter v1.4.2 delorie.com 55H8B3WI284615
DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 519D93851AA2
Date: Tue, 17 Jun 2025 09:10:23 +0100
To: Sebastian Feld <sebastian.n.feld@gmail.com>
cc: cygwin@cygwin.com, Radek Barton <radek.barton@microsoft.com>
Subject: Re: Cygwin AArch64 testing with Windows AArch64 on qemu?
In-Reply-To: <CAHnbEGKjoqMa60Y3iQXkJnHYBuGFqCTkgzg=M6kWwP13+SySBg@mail.gmail.com>
Message-ID: <ecc13d25-59e2-2597-12e4-d57a5c5a4c74@cam.ac.uk>
References: <CAHnbEGKjoqMa60Y3iQXkJnHYBuGFqCTkgzg=M6kWwP13+SySBg@mail.gmail.com>
MIME-Version: 1.0
X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1
X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?7SEd65ju5zc703yOBFu4r9Ev6HpRqsheMRy/FY0nAAnPlFOqKG/wEXW94dwG?=
 =?us-ascii?Q?ELsX5aOQkgA/qATs7NNUoc+a1t1HMTLhsIZEj7VApXydiBjpOrXI+88RT5jP?=
 =?us-ascii?Q?fVpDludkXTb1Yilk/dViTnUrvoHtGVjrRWcG9/OgHnb8DlAge0pZm4Skxd17?=
 =?us-ascii?Q?V+T8L2EM6p3R42ZHX0McK9ECnKwEQWD+GT1yeM7qsJyqzqioXSJcRUaZ7FUd?=
 =?us-ascii?Q?WNgzIQK+x1kiPLiGTCSkIovVt0wKhdA6NTQH9Wptf2mRfoL4rJV43EjM/3nd?=
 =?us-ascii?Q?rfOZPDJ9fUjlM7l4knXm0I8XauAVZMKk3P5aIwhbas1VQJ1Wt4zJYwAvV13q?=
 =?us-ascii?Q?C0pksbygNr8kYM/6tpJM5SWXnwoTXHWGvbrFao+O+pTZFBk0J4qhiv0UuuA+?=
 =?us-ascii?Q?B/k8SHd33I75hy5BM73z6TzMTJ3ysTQcwyUR8RU66tzGiiunxl0DbP66v/yO?=
 =?us-ascii?Q?hISzZsOkL39zQib55J4kd6Q8vnRIKsC/Owb4/XVdZpY8kbPzmxXx7IDsCeK4?=
 =?us-ascii?Q?5xeZsDBIL0bKU1ZFC1ooFNTDsCHURttXHUnSDpWoW0WKvU555qDGnI3xMB9c?=
 =?us-ascii?Q?NSqbN1nOsskuYsL+RbRaKj+E5+LDYZNMj9QghNHNbva9MUHu15D4WpQlAUO5?=
 =?us-ascii?Q?POMlK+Q6GVXFdo9IY6OvhOCvtBYmrQn1hFCm+2JSE1aAExw7b/ncfRJpnwp8?=
 =?us-ascii?Q?FwmvAGfTREY6w1PTjFz3yqjHnNKkwjt3jACq1txEIUp1hGk3pZ1OfNn8KZsG?=
 =?us-ascii?Q?DnL7khxvrvg0J/z4iW6W7JHxc6oVQJTH5Zfwb7OamUBwBkRvjdMD8h8b0w54?=
 =?us-ascii?Q?0wZ7pN6Xq56LLx1w9/fLggcNzzTsWvBOfRKfJEMNl4gNHwDTy1c7atPvdD4r?=
 =?us-ascii?Q?qYteLrvB3UcmC88KKI7ztc5CL9fEmBtiEnaVb41fvwn30wvzbZu1d3vNQnTu?=
 =?us-ascii?Q?g/0OEJhKYtNzKTrTavRhroqA5ma8TWZMc0WsHzHcH/e+n/w7OvIaued3bO8o?=
 =?us-ascii?Q?CNH3745yKlsM3MA0XVEbt/9VxaMNHUIYFf4x6fXLSplNaGP1EH/HXHPhz6/h?=
 =?us-ascii?Q?2ZUjUhTEgDGALcGs9KsdICUtA2aBjKcLhWwpUTivSr4lpxQMGKx1MouUx3Ia?=
 =?us-ascii?Q?zgzs1foriSIfBoz+thKfZ9HKgZ/wXUEXEY4NoqMtLYrz4+gUoEGtg5VqpsxF?=
 =?us-ascii?Q?bSc5sHtC5/Oc50wLdl4sG7B77H71HDqaeF9+9YIF6q9aazpLNv8hzxcJDF1B?=
 =?us-ascii?Q?8ZiXY3sJ+xcymw3Hsl2ivz89a+On0BuTilHc1DkRaJB6EFo2HF2AAqIhCsOQ?=
 =?us-ascii?Q?7SuJoX0yoZD2oJZPgxuQHc6V8i3S2uqzil1ZfKkqpIt/2uerhl4XCvqKgwuf?=
 =?us-ascii?Q?Nk7qaXVN05mg7OPdVrBMsibeVSb90rpBVq5Kkm31XK166iOfdHMoxCf3IDWw?=
 =?us-ascii?Q?CJ74jmNPVPDKEgO5yVveFjhn+eRBSLPn6sBLgpPpggeF0xuKI+7x03EuHT5d?=
 =?us-ascii?Q?5jTgpJGho2cLORQki3h/01jssxmvm3N7zK5GwlC9IkAisLE35yG42RZ+S5t7?=
 =?us-ascii?Q?CSSFNmvQmYeWBILctMbEpj5/MayWZMM4gbVP8IGo?=
X-OriginatorOrg: cam.ac.uk
X-MS-Exchange-CrossTenant-Network-Message-Id: e5f963f1-5843-4aab-1369-08ddad766b61
X-MS-Exchange-CrossTenant-AuthSource: CWXP265MB1877.GBRP265.PROD.OUTLOOK.COM
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Jun 2025 08:10:28.1261 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-CrossTenant-Id: 49a50445-bdfa-4b79-ade3-547b4f3986e9
X-MS-Exchange-CrossTenant-MailboxType: HOSTED
X-MS-Exchange-CrossTenant-UserPrincipalName: d9Gd+3jf776fTCkewOtnMb2Vg0LDuim7TVwoSRjYGn8FomEDDjXZppYucHqMCzWp
X-MS-Exchange-Transport-CrossTenantHeadersStamped: CWXP265MB2056
X-BeenThere: cygwin@cygwin.com
X-Mailman-Version: 2.1.30
Precedence: list
List-Id: General Cygwin discussions and problem reports <cygwin.cygwin.com>
List-Unsubscribe: <https://cygwin.com/mailman/options/cygwin>,
 <mailto:cygwin-request@cygwin.com?subject=unsubscribe>
List-Archive: <https://cygwin.com/pipermail/cygwin/>
List-Post: <mailto:cygwin@cygwin.com>
List-Help: <mailto:cygwin-request@cygwin.com?subject=help>
List-Subscribe: <https://cygwin.com/mailman/listinfo/cygwin>,
 <mailto:cygwin-request@cygwin.com?subject=subscribe>
From: Arthur Norman via Cygwin <cygwin@cygwin.com>
Reply-To: Arthur Norman <acn1@cam.ac.uk>
Content-Transfer-Encoding: 7bit
Content-Type: text/plain; charset="us-ascii"; Format="flowed"
Errors-To: cygwin-bounces~archive-cygwin=delorie.com@cygwin.com
Sender: "Cygwin" <cygwin-bounces~archive-cygwin=delorie.com@cygwin.com>

Thanka for the head up - can you provide us with a pointer to Microsoft 
work on Cygwin please?


On a Raspberry Pi 5 "botspot-VM" https://github.com/Botspot/bvm installed 
a Win11 for me fairly happily and despite it not being the fastest machine
it is closer to viable than I might have expected.
And on an ARM Mac you have a choice between UTM and Vmwate Fusion (and 
possibly now virtualbox).  There are wrinkles installing in several of 
those cases so expect to need to do some web checking as you go.

I note that the x86_64 version of cygwin installs and runs improbably 
happily on a Raspberry Pi 5 via Windows-11-on-ARM and the "prism" x86_64 
emulator there, so one has a familiar and comfortable environment to work 
in. Obviously compiling things in that mode is a bit slow but mostly that 
just turns into more of a need to go and have a coffee or a beer or two.

I have no experience of trying this in an ARM running on Intel hardware 
via qemu, and I would probably bet that just getting a Raspberry Pi 5 
would be a better path than that!

Arthur

On Tue, 17 Jun 2025, Sebastian Feld via Cygwin wrote:

> Now that Microsoft is porting Cygwin to Aarch64:
>
> Do you know how to run Windows Aarch64 in qemu, so people can test
> Cygwin Aarch64 changes?
>
> Sebi
> --

-- 
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