From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-Status: No, score=-3.9 required=3.0 tests=AWL,BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_PASS, SPF_PASS shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from sourceware.org (server2.sourceware.org [8.43.85.97]) (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) by dcvr.yhbt.net (Postfix) with ESMTPS id DD4AA1F55B for ; Thu, 4 Jun 2020 19:37:30 +0000 (UTC) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 1A507388E830; Thu, 4 Jun 2020 19:37:30 +0000 (GMT) Received: from brightrain.aerifal.cx (brightrain.aerifal.cx [216.12.86.13]) by sourceware.org (Postfix) with ESMTPS id A4E9E388A82F for ; Thu, 4 Jun 2020 19:37:27 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org A4E9E388A82F Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=libc.org Authentication-Results: sourceware.org; spf=none smtp.mailfrom=dalias@libc.org Date: Thu, 4 Jun 2020 15:37:27 -0400 From: Rich Felker To: David Edelsohn Subject: Re: [musl] Re: ppc64le and 32-bit LE userland compatibility Message-ID: <20200604193726.GQ1079@brightrain.aerifal.cx> References: <20200602142337.GS25173@kitsune.suse.cz> <3aeb6dfe-ae23-42f9-ac23-16be6b54a850@www.fastmail.com> <20200604171232.GG31009@gate.crashing.org> <20200604171844.GO1079@brightrain.aerifal.cx> <20200604173312.GI31009@gate.crashing.org> <20200604174613.GP1079@brightrain.aerifal.cx> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: GNU C Library , eery@paperfox.es, Daniel Kolesa , musl@lists.openwall.com, Will Springer , Palmer Dabbelt via binutils , via libc-dev , Michal =?utf-8?B?U3VjaMOhbmVr?= , linuxppc-dev@lists.ozlabs.org, Joseph Myers Errors-To: libc-alpha-bounces@sourceware.org Sender: "Libc-alpha" On Thu, Jun 04, 2020 at 03:00:51PM -0400, David Edelsohn wrote: > On Thu, Jun 4, 2020 at 1:46 PM Rich Felker wrote: > > > > On Thu, Jun 04, 2020 at 12:33:12PM -0500, Segher Boessenkool wrote: > > > On Thu, Jun 04, 2020 at 01:18:44PM -0400, Rich Felker wrote: > > > > On Thu, Jun 04, 2020 at 12:12:32PM -0500, Segher Boessenkool wrote: > > > > > On Tue, Jun 02, 2020 at 05:13:25PM +0200, Daniel Kolesa wrote: > > > > > > well, ppc64le already cannot be run on those, as far as I know (I > > > > > > don't think it's possible to build ppc64le userland without VSX in > > > > > > any configuration) > > > > > > > > > > VSX is required by the ELFv2 ABI: > > > > > > > > > > """ > > > > > Specifically, to use this ABI and ABI-compliant programs, OpenPOWER- > > > > > compliant processors must implement the following categories: > > > > > > > > This is not actually ABI but IBM policy laundered into an ABI > > > > document, which musl does not honor. > > > > > > It is the ABI. If you think it should be different, make your own ABI, > > > don't pretend the existing ABI is different than what it is. Thank you. > > > > Our ABI is as specified in the ELFv2 document, but with ld as ld64, > > and minus gratuitous requirements on ISA level that are not part of > > implementing linkage. > > Rich, > > If you are changing the Power ELFv2 ABI then it is not the Power ELFv2 > ABI. You can't cherry-pick what you like and claim that it is > compatible. You are not conforming to the ABI. You are aware of this and you are aware that I don't care about your opinion on the matter, and that I don't appreciate your ongoing harassment of users of musl who run on pre-POWER8 hardware that IBM does not approve them using. Rich