From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.marcansoft.com (marcansoft.com [212.63.210.85]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1A4D17B; Mon, 26 Sep 2022 11:16:43 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: marcan@marcan.st) by mail.marcansoft.com (Postfix) with ESMTPSA id B11BF41EF0; Mon, 26 Sep 2022 11:16:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=marcan.st; s=default; t=1664190994; bh=rOuuto//9X2yVHXbZW7PA1Ohl4IJGMNIa4F1RVFPT7M=; h=Date:To:Cc:References:From:Subject:In-Reply-To; b=JzqNXDipIlQwwGnZOEmalB3DCXA8ACeevo7PBd8Tf6hEgVGX8isUPzkW2pkT3TtrA jK2QtBtlw1//90TBODlINJXWWtTgxXPhGRYI+6zRp6gcfkotBZUYzmPl9KlEMWYdq4 FuhYGRNq02QRNZhBJ+LmEp4u573KWSoFJaFFimNCmSyEFbvRmGw8sC++BivEXZRPlE VLD1Wc8cTTlRULjmgZajaeDnjwTXGnNwVc723YEI9/54We+zjglFfPJTntTsOj+LYd 0Fr/FQ8jUs80yWnhNI2q/+9Eufc2tUiGsq+XjHik8Fbh1xciHEgyOm3OyYiwV9QdIO 8ftjoKBp5TheQ== Message-ID: <4fdda77e-6aed-b148-ddbc-52ef2d29b565@marcan.st> Date: Mon, 26 Sep 2022 20:16:28 +0900 Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.9.1 Content-Language: es-ES To: =?UTF-8?Q?Martin_Povi=c5=a1er?= , Sven Peter , Nick Desaulniers Cc: Linus Torvalds , Masahiro Yamada , Nick Desaulniers , clang-built-linux , Linux Kbuild mailing list , Linux Kernel Mailing List , asahi@lists.linux.dev, linux-arm Mailing List References: <478D9484-E404-4A96-908C-4DE0F7C23997@cutebit.org> From: Hector Martin Subject: Re: Any interest in building the Linux kernel from a MacOS host? In-Reply-To: <478D9484-E404-4A96-908C-4DE0F7C23997@cutebit.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On 26/09/2022 18.06, Martin Povišer wrote: > FWIW my current workflow includes building the kernel under macOS, so > there’s some interest from me, but that will pass once the porting > project progresses enough. So far I get by with some local duct tape. > >> On 26. 9. 2022, at 10:09, Sven Peter wrote: >> >> On Mon, Sep 26, 2022, at 09:51, Nick Desaulniers wrote: > > (...) > >>> If this might seem helpful >>> to anyone's workflow, I wouldn't mind pursuing this (with some >>> cleanup, sending a more formal patch set). Maybe this helps us >>> bootstrap or get Linux up and running sooner on these machines? >> >> I've been either using a Linux VM or just a bare metal system running >> on these machine for quite a while now to build kernels. This would've >> been useful when I originally started though and VMs weren't working very >> well yet so maybe it's still worth pursuing. > > I really wanted to do it in a VM as a saner path, but I didn't find > a satisfactory way to share the working source tree between the macOS > host and Linux guest (which wouldn't slow down the build). > > Martin Just for context: Most of our (Asahi) developers' workflow involves loading kernels over USB from another machine. That other machine can be any OS, but if it's another M1/2 running macOS you get the additional perk of USB-PD tooling to remote-force-reboot the target machine as well as get a real physical serial port. The same tooling could be ported to Linux-on-M1/2 relatively easily, but nobody has done that yet (probably because these days we have a hypervisor that gives you a superset of that functionality anyway, over standard USB, so it's not that necessary). I personally use an x86 host and a hardware contraption to provide the same hard reboot/UART functionality (for the rare case when the hypervisor borks, to avoid having to hold down power buttons). So there are certainly some people who'd benefit from using a macOS machine as a build host, either for the special USB-PD functionality or because they just like macOS as a development environment. It sounds like getting it to work isn't that hard, so perhaps it's worth upstreaming? - Hector From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BAF98C32771 for ; Mon, 26 Sep 2022 11:18:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Subject:From:References:Cc: To:MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=BEkbnQudhxbuzE+MDZxAlXFfMuTNhB0q3g+3e1mPRJ0=; b=woYrIwLZTMT1S3 GSdm4pSzhkP+qVR6oMqcpEPGmiJ7KZB7CT9GPkFNvHzZZ1pV/qzC+HE50kDVg5GE2dJBn2E2ZCpOr KnNOSLaBCM7mFZUBVCZefLKqkd/ioo6v81SvLexbFqwLK/FYHfUaqOC8UIzFlTBNDM1ICYHHZKA/u r9uZoVwHYPn8v+4378ULR0M0wMsURYDgsyd8q+FswEheKRwYullpQBjgWtLfuLPjzDt3+PxfZK6Kw OLzi4QhZ/9k1oPs6qAkFnUDp4YPRkBAU38CxGGeGLRoKDOg4vqib6voqwaovERCt2inWtcDmPtB+w meksdGIFh35/DQsPLluw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ocm6O-004V8e-Qv; Mon, 26 Sep 2022 11:16:44 +0000 Received: from marcansoft.com ([212.63.210.85] helo=mail.marcansoft.com) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1ocm6L-004V7F-26 for linux-arm-kernel@lists.infradead.org; Mon, 26 Sep 2022 11:16:43 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: marcan@marcan.st) by mail.marcansoft.com (Postfix) with ESMTPSA id B11BF41EF0; Mon, 26 Sep 2022 11:16:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=marcan.st; s=default; t=1664190994; bh=rOuuto//9X2yVHXbZW7PA1Ohl4IJGMNIa4F1RVFPT7M=; h=Date:To:Cc:References:From:Subject:In-Reply-To; b=JzqNXDipIlQwwGnZOEmalB3DCXA8ACeevo7PBd8Tf6hEgVGX8isUPzkW2pkT3TtrA jK2QtBtlw1//90TBODlINJXWWtTgxXPhGRYI+6zRp6gcfkotBZUYzmPl9KlEMWYdq4 FuhYGRNq02QRNZhBJ+LmEp4u573KWSoFJaFFimNCmSyEFbvRmGw8sC++BivEXZRPlE VLD1Wc8cTTlRULjmgZajaeDnjwTXGnNwVc723YEI9/54We+zjglFfPJTntTsOj+LYd 0Fr/FQ8jUs80yWnhNI2q/+9Eufc2tUiGsq+XjHik8Fbh1xciHEgyOm3OyYiwV9QdIO 8ftjoKBp5TheQ== Message-ID: <4fdda77e-6aed-b148-ddbc-52ef2d29b565@marcan.st> Date: Mon, 26 Sep 2022 20:16:28 +0900 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.9.1 Content-Language: es-ES To: =?UTF-8?Q?Martin_Povi=c5=a1er?= , Sven Peter , Nick Desaulniers Cc: Linus Torvalds , Masahiro Yamada , Nick Desaulniers , clang-built-linux , Linux Kbuild mailing list , Linux Kernel Mailing List , asahi@lists.linux.dev, linux-arm Mailing List References: <478D9484-E404-4A96-908C-4DE0F7C23997@cutebit.org> From: Hector Martin Subject: Re: Any interest in building the Linux kernel from a MacOS host? In-Reply-To: <478D9484-E404-4A96-908C-4DE0F7C23997@cutebit.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220926_041642_077261_0CA1467D X-CRM114-Status: GOOD ( 19.55 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gMjYvMDkvMjAyMiAxOC4wNiwgTWFydGluIFBvdmnFoWVyIHdyb3RlOgo+IEZXSVcgbXkgY3Vy cmVudCB3b3JrZmxvdyBpbmNsdWRlcyBidWlsZGluZyB0aGUga2VybmVsIHVuZGVyIG1hY09TLCBz bwo+IHRoZXJl4oCZcyBzb21lIGludGVyZXN0IGZyb20gbWUsIGJ1dCB0aGF0IHdpbGwgcGFzcyBv bmNlIHRoZSBwb3J0aW5nCj4gcHJvamVjdCBwcm9ncmVzc2VzIGVub3VnaC4gU28gZmFyIEkgZ2V0 IGJ5IHdpdGggc29tZSBsb2NhbCBkdWN0IHRhcGUuCj4gCj4+IE9uIDI2LiA5LiAyMDIyLCBhdCAx MDowOSwgU3ZlbiBQZXRlciA8c3ZlbkBzdmVucGV0ZXIuZGV2PiB3cm90ZToKPj4KPj4gT24gTW9u LCBTZXAgMjYsIDIwMjIsIGF0IDA5OjUxLCBOaWNrIERlc2F1bG5pZXJzIHdyb3RlOgo+IAo+ICgu Li4pCj4gCj4+PiBJZiB0aGlzIG1pZ2h0IHNlZW0gaGVscGZ1bAo+Pj4gdG8gYW55b25lJ3Mgd29y a2Zsb3csIEkgd291bGRuJ3QgbWluZCBwdXJzdWluZyB0aGlzICh3aXRoIHNvbWUKPj4+IGNsZWFu dXAsIHNlbmRpbmcgYSBtb3JlIGZvcm1hbCBwYXRjaCBzZXQpLiAgTWF5YmUgdGhpcyBoZWxwcyB1 cwo+Pj4gYm9vdHN0cmFwIG9yIGdldCBMaW51eCB1cCBhbmQgcnVubmluZyBzb29uZXIgb24gdGhl c2UgbWFjaGluZXM/Cj4+Cj4+IEkndmUgYmVlbiBlaXRoZXIgdXNpbmcgYSBMaW51eCBWTSBvciBq dXN0IGEgYmFyZSBtZXRhbCBzeXN0ZW0gcnVubmluZwo+PiBvbiB0aGVzZSBtYWNoaW5lIGZvciBx dWl0ZSBhIHdoaWxlIG5vdyB0byBidWlsZCBrZXJuZWxzLiBUaGlzIHdvdWxkJ3ZlCj4+IGJlZW4g dXNlZnVsIHdoZW4gSSBvcmlnaW5hbGx5IHN0YXJ0ZWQgdGhvdWdoIGFuZCBWTXMgd2VyZW4ndCB3 b3JraW5nIHZlcnkKPj4gd2VsbCB5ZXQgc28gbWF5YmUgaXQncyBzdGlsbCB3b3J0aCBwdXJzdWlu Zy4KPiAKPiBJIHJlYWxseSB3YW50ZWQgdG8gZG8gaXQgaW4gYSBWTSBhcyBhIHNhbmVyIHBhdGgs IGJ1dCBJIGRpZG4ndCBmaW5kCj4gYSBzYXRpc2ZhY3Rvcnkgd2F5IHRvIHNoYXJlIHRoZSB3b3Jr aW5nIHNvdXJjZSB0cmVlIGJldHdlZW4gdGhlIG1hY09TCj4gaG9zdCBhbmQgTGludXggZ3Vlc3Qg KHdoaWNoIHdvdWxkbid0IHNsb3cgZG93biB0aGUgYnVpbGQpLgo+IAo+IE1hcnRpbgoKSnVzdCBm b3IgY29udGV4dDogTW9zdCBvZiBvdXIgKEFzYWhpKSBkZXZlbG9wZXJzJyB3b3JrZmxvdyBpbnZv bHZlcwpsb2FkaW5nIGtlcm5lbHMgb3ZlciBVU0IgZnJvbSBhbm90aGVyIG1hY2hpbmUuIFRoYXQg b3RoZXIgbWFjaGluZSBjYW4gYmUKYW55IE9TLCBidXQgaWYgaXQncyBhbm90aGVyIE0xLzIgcnVu bmluZyBtYWNPUyB5b3UgZ2V0IHRoZSBhZGRpdGlvbmFsCnBlcmsgb2YgVVNCLVBEIHRvb2xpbmcg dG8gcmVtb3RlLWZvcmNlLXJlYm9vdCB0aGUgdGFyZ2V0IG1hY2hpbmUgYXMgd2VsbAphcyBnZXQg YSByZWFsIHBoeXNpY2FsIHNlcmlhbCBwb3J0LiBUaGUgc2FtZSB0b29saW5nIGNvdWxkIGJlIHBv cnRlZCB0bwpMaW51eC1vbi1NMS8yIHJlbGF0aXZlbHkgZWFzaWx5LCBidXQgbm9ib2R5IGhhcyBk b25lIHRoYXQgeWV0IChwcm9iYWJseQpiZWNhdXNlIHRoZXNlIGRheXMgd2UgaGF2ZSBhIGh5cGVy dmlzb3IgdGhhdCBnaXZlcyB5b3UgYSBzdXBlcnNldCBvZgp0aGF0IGZ1bmN0aW9uYWxpdHkgYW55 d2F5LCBvdmVyIHN0YW5kYXJkIFVTQiwgc28gaXQncyBub3QgdGhhdCBuZWNlc3NhcnkpLgoKSSBw ZXJzb25hbGx5IHVzZSBhbiB4ODYgaG9zdCBhbmQgYSBoYXJkd2FyZSBjb250cmFwdGlvbiB0byBw cm92aWRlIHRoZQpzYW1lIGhhcmQgcmVib290L1VBUlQgZnVuY3Rpb25hbGl0eSAoZm9yIHRoZSBy YXJlIGNhc2Ugd2hlbiB0aGUKaHlwZXJ2aXNvciBib3JrcywgdG8gYXZvaWQgaGF2aW5nIHRvIGhv bGQgZG93biBwb3dlciBidXR0b25zKS4KClNvIHRoZXJlIGFyZSBjZXJ0YWlubHkgc29tZSBwZW9w bGUgd2hvJ2QgYmVuZWZpdCBmcm9tIHVzaW5nIGEgbWFjT1MKbWFjaGluZSBhcyBhIGJ1aWxkIGhv c3QsIGVpdGhlciBmb3IgdGhlIHNwZWNpYWwgVVNCLVBEIGZ1bmN0aW9uYWxpdHkgb3IKYmVjYXVz ZSB0aGV5IGp1c3QgbGlrZSBtYWNPUyBhcyBhIGRldmVsb3BtZW50IGVudmlyb25tZW50LiBJdCBz b3VuZHMKbGlrZSBnZXR0aW5nIGl0IHRvIHdvcmsgaXNuJ3QgdGhhdCBoYXJkLCBzbyBwZXJoYXBz IGl0J3Mgd29ydGggdXBzdHJlYW1pbmc/CgotIEhlY3RvcgoKX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX18KbGludXgtYXJtLWtlcm5lbCBtYWlsaW5nIGxpc3QK bGludXgtYXJtLWtlcm5lbEBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRl YWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtYXJtLWtlcm5lbAo=