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[209.132.180.67]) by mx.google.com with ESMTP id 23si12816139pfu.2.2018.12.11.02.47.10; Tue, 11 Dec 2018 02:47:25 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726470AbeLKKov (ORCPT + 99 others); Tue, 11 Dec 2018 05:44:51 -0500 Received: from outpost1.zedat.fu-berlin.de ([130.133.4.66]:53903 "EHLO outpost1.zedat.fu-berlin.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726114AbeLKKov (ORCPT ); Tue, 11 Dec 2018 05:44:51 -0500 Received: from inpost2.zedat.fu-berlin.de ([130.133.4.69]) by outpost.zedat.fu-berlin.de (Exim 4.85) with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (envelope-from ) id <1gWfWj-0015DK-8m>; Tue, 11 Dec 2018 11:44:33 +0100 Received: from suse-laptop.physik.fu-berlin.de ([160.45.32.140]) by inpost2.zedat.fu-berlin.de (Exim 4.85) with esmtpsa (TLSv1.2:AES128-SHA:128) (envelope-from ) id <1gWfWj-000cBo-3H>; Tue, 11 Dec 2018 11:44:33 +0100 Subject: Re: Can we drop upstream Linux x32 support? To: Florian Weimer Cc: Andy Lutomirski , X86 ML , LKML , Linux API , "H. Peter Anvin" , Peter Zijlstra , Borislav Petkov , Mike Frysinger , "H. J. Lu" , Rich Felker , x32@buildd.debian.org, Arnd Bergmann , Will Deacon , Catalin Marinas , Linus Torvalds References: <70bb54b2-8ed3-b5ee-c02d-6ef66c4f27eb@physik.fu-berlin.de> <87in00z6ux.fsf@oldenburg2.str.redhat.com> From: John Paul Adrian Glaubitz Openpgp: preference=signencrypt Autocrypt: addr=glaubitz@physik.fu-berlin.de; keydata= xsFNBE3JE9wBEADMrYGNfz3oz6XLw9XcWvuIxIlPWoTyw9BxTicfGAv0d87wngs9U+d52t/R EggPePf34gb7/k8FBY1IgyxnZEB5NxUb1WtW0M3GUxpPx6gBZqOm7SK1ZW3oSORw+T7Aezl3 Zq4Nr4Nptqx7fnLpXfRDs5iYO/GX8WuL8fkGS/gIXtxKewd0LkTlb6jq9KKq8qn8/BN5YEKq JlM7jsENyA5PIe2npN3MjEg6p+qFrmrzJRuFjjdf5vvGfzskrXCAKGlNjMMA4TgZvugOFmBI /iSyV0IOaj0uKhes0ZNX+lQFrOB4j6I5fTBy7L/T3W/pCWo3wVkknNYa8TDYT73oIZ7Aimv+ k7OzRfnxsSOAZT8Re1Yt8mvzr6FHVFjr/VdyTtO5JgQZ6LEmvo4Ro+2ByBmCHORCQ0NJhD1U 3avjGfvfslG999W0WEZLTeaGkBAN1yG/1bgGAytQQkD9NsVXqBy7S3LVv9bB844ysW5Aj1nv tgIz14E2WL8rbpfjJMXi7B5ha6Lxf3rFOgxpr6ZoEn+bGG4hmrO+/ReA4SerfMqwSTnjZsZv xMJsx2B9c8DaZE8GsA4I6lsihbJmXhw8i7Cta8Dx418wtEbXhL6m/UEk60O7QD1VBgGqDMnJ DFSlvKa9D+tZde/kHSNmQmLLzxtDbNgBgmR0jUlmxirijnm8bwARAQABzVRKb2huIFBhdWwg QWRyaWFuIEdsYXViaXR6IChGcmVpZSBVbml2ZXJzaXRhZXQgQmVybGluKSA8Z2xhdWJpdHpA cGh5c2lrLmZ1LWJlcmxpbi5kZT7CwZEEEwEIADsCGwMFCwkIBwMFFQoJCAsFFgIDAQACHgEC F4AWIQRi/4p1hOApVpVGAAZ0Jjs39bX5EwUCWhQoUgIZAQAKCRB0Jjs39bX5Ez/ID/98r9c4 WUSgOHVPSMVcOVziMOi+zPWfF1OhOXW+atpTM4LSSp66196xOlDFHOdNNmO6kxckXAX9ptvp Bc0mRxa7OrC168fKzqR7P75eTsJnVaOu+uI/vvgsbUIosYdkkekCxDAbYCUwmzNotIspnFbx iSPMNrpw7Ud/yQkS9TDYeXnrZDhBp7p5+naWCD/yMvh7yVCA4Ea8+xDVoX+kjv6EHJrwVupO pMa39cGs2rKYZbWTazcflKH+bXG3FHBrwh9XRjA6A1CTeC/zTVNgGF6wvw/qT2x9tS7WeeZ1 jvBCJub2cb07qIfuvxXiGcYGr+W4z9GuLCiWsMmoff/Gmo1aeMZDRYKLAZLGlEr6zkYh1Abt iz0YLqIYVbZAnf8dCjmYhuwPq77IeqSjqUqI2Cb0oOOlwRKVWDlqAeo0Bh8DrvZvBAojJf4H nQZ/pSz0yaRed/0FAmkVfV+1yR6BtRXhkRF6NCmguSITC96IzE26C6n5DBb43MR7Ga/mof4M UufnKADNG4qz57CBwENHyx6ftWJeWZNdRZq10o0NXuCJZf/iulHCWS/hFOM5ygfONq1Vsj2Z DSWvVpSLj+Ufd2QnmsnrCr1ZGcl72OC24AmqFWJY+IyReHWpuABEVZVeVDQooJ0K4yqucmrF R7HyH7oZGgR0CgYHCI+9yhrXHrQpyM7BTQRNyRQuARAArCaWhVbMXw9iHmMH0BN/TuSmeKtV h/+QOT5C5Uw+XJ3A+OHr9rB+SpndJEcDIhv70gLrpEuloXhZI9VYazfTv6lrkCZObXq/NgDQ Mnu+9E/E/PE9irqnZZOMWpurQRh41MibRii0iSr+AH2IhRL6CN2egZID6f93Cdu7US53ZqIx bXoguqGB2CK115bcnsswMW9YiVegFA5J9dAMsCI9/6M8li+CSYICi9gq0LdpODdsVfaxmo4+ xYFdXoDN33b8Yyzhbh/I5gtVIRpfL+Yjfk8xAsfz78wzifSDckSB3NGPAXvs6HxKc50bvf+P 6t2tLpmB/KrpozlZazq16iktY97QulyEY9JWCiEgDs6EKb4wTx+lUe4yS9eo95cBV+YlL+BX kJSAMyxgSOy35BeBaeUSIrYqfHpbNn6/nidwDhg/nxyJs8mPlBvHiCLwotje2AhtYndDEhGQ KEtEaMQEhDi9MsCGHe+00QegCv3FRveHwzGphY1YlRItLjF4TcFz1SsHn30e7uLTDe/pUMZU Kd1xU73WWr0NlWG1g49ITyaBpwdv/cs/RQ5laYYeivnag81TcPCDbTm7zXiwo53aLQOZj4u3 gSQvAUhgYTQUstMdkOMOn0PSIpyVAq3zrEFEYf7bNSTcdGrgwCuCBe4DgI3Vu4LOoAeI428t 2dj1K1EAEQEAAcLBXwQYAQgACQUCTckULgIbDAAKCRB0Jjs39bX5E683EAC1huywL4BlxTj7 FTm7FiKd5/KEH5/oaxLQN26mn8yRkP/L3xwiqXxdd0hnrPyUe8mUOrSg7KLMul+pSRxPgaHA xt1I1hQZ30cJ1j/SkDIV2ImSf75Yzz5v72fPiYLq9+H3qKZwrgof9yM/s0bfsSX/GWyFatvo Koo+TgrE0rmtQw82vv7/cbDAYceQm1bRB8Nr8agPyGXYcjohAj7NJcra4hnu1wUw3yD05p/B Rntv7NvPWV3Oo7DKCWIS4RpEd6I6E+tN3GCePqROeK1nDv+FJWLkyvwLigfNaCLro6/292YK VMdBISNYN4s6IGPrXGGvoDwo9RVo6kBhlYEfg6+2eaPCwq40IVfKbYNwLLB2MR2ssL4yzmDo OR3rQFDPj+QcDvH4/0gCQ+qRpYATIegS8zU5xQ8nPL8lba9YNejaOMzw8RB80g+2oPOJ3Wzx oMsmw8taUmd9TIw/bJ2VO1HniiJUGUXCqoeg8homvBOQ0PmWAWIwjC6nf6CIuIM4Egu2I5Kl jEF9ImTPcYZpw5vhdyPwBdXW2lSjV3EAqknWujRgcsm84nycuJnImwJptR481EWmtuH6ysj5 YhRVGbQPfdsjVUQfZdRdkEv4CZ90pdscBi1nRqcqANtzC+WQFwekDzk2lGqNRDg56s+q0KtY scOkTAZQGVpD/8AaLH4v1w== Message-ID: <873573ba-4d15-07c8-3fcf-ccf36eee14f1@physik.fu-berlin.de> Date: Tue, 11 Dec 2018 11:44:32 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.2 MIME-Version: 1.0 In-Reply-To: <87in00z6ux.fsf@oldenburg2.str.redhat.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: 160.45.32.140 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/11/18 11:37 AM, Florian Weimer wrote: > Note that OpenJDK (well, Hotspot) has its own 32-bit pointer support for > the Java heap (compressed oops), so only the native code parts (and JNI) > benefit from x32 anyway. Yeah, I was actually only talking about this single commit by me to add Zero build support for x86_64-linux-gnux32: > http://hg.openjdk.java.net/jdk/jdk/rev/9ce4a0d718c7 Adrian -- .''`. John Paul Adrian Glaubitz : :' : Debian Developer - glaubitz@debian.org `. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913