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 X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EE824C433ED for ; Thu, 20 May 2021 01:06:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CB8326112F for ; Thu, 20 May 2021 01:06:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230148AbhETBHe (ORCPT ); Wed, 19 May 2021 21:07:34 -0400 Received: from vmicros1.altlinux.org ([194.107.17.57]:37172 "EHLO vmicros1.altlinux.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229498AbhETBHd (ORCPT ); Wed, 19 May 2021 21:07:33 -0400 Received: from mua.local.altlinux.org (mua.local.altlinux.org [192.168.1.14]) by vmicros1.altlinux.org (Postfix) with ESMTP id 3FDFF72C8BA; Thu, 20 May 2021 04:06:12 +0300 (MSK) Received: by mua.local.altlinux.org (Postfix, from userid 508) id 3018A7CC8A6; Thu, 20 May 2021 04:06:12 +0300 (MSK) Date: Thu, 20 May 2021 04:06:12 +0300 From: "Dmitry V. Levin" To: Rich Felker Cc: Joakim Tjernlund , Segher Boessenkool , Michael Ellerman , Nicholas Piggin , musl@lists.openwall.com, linuxppc-dev@lists.ozlabs.org, linux-api@vger.kernel.org Subject: Re: Linux powerpc new system call instruction and ABI Message-ID: <20210520010612.GA25599@altlinux.org> References: <20210518231331.GA8464@altlinux.org> <9b5ea7059c5a5d4e9ccccd7d73ce2c66b2203f52.camel@infinera.com> <1621410291.c7si38sa9q.astroid@bobo.none> <1621413143.oec64jaci5.astroid@bobo.none> <20210519143836.GJ10366@gate.crashing.org> <11d62aa2488e51ec00fe77f24a1d7cdcc21af0b8.camel@infinera.com> <20210519152205.GL10366@gate.crashing.org> <20210519234846.GS2546@brightrain.aerifal.cx> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210519234846.GS2546@brightrain.aerifal.cx> Precedence: bulk List-ID: X-Mailing-List: linux-api@vger.kernel.org On Wed, May 19, 2021 at 07:48:47PM -0400, Rich Felker wrote: > On Wed, May 19, 2021 at 06:09:25PM +0000, Joakim Tjernlund wrote: [...] > > W.r.t breaking ABI, isn't that what PowerPC is trying to do with the new syscall I/F? > > No, it's a new independent interface. Unfortunately, being a new independent interface doesn't mean it isn't an ABI break. In fact, it was a severe ABI break, and this thread is an attempt to find a hotfix. -- ldv