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=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 945DFC433E0 for ; Tue, 2 Jun 2020 17:49:44 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D6933206E2 for ; Tue, 2 Jun 2020 17:49:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D6933206E2 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.crashing.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 49c0115lvczDqYh for ; Wed, 3 Jun 2020 03:49:41 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=permerror (SPF Permanent Error: Unknown mechanism found: ip:192.40.192.88/32) smtp.mailfrom=kernel.crashing.org (client-ip=63.228.1.57; helo=gate.crashing.org; envelope-from=segher@kernel.crashing.org; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=kernel.crashing.org Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) by lists.ozlabs.org (Postfix) with ESMTP id 49bzzJ6bb4zDqWG for ; Wed, 3 Jun 2020 03:48:11 +1000 (AEST) Received: from gate.crashing.org (localhost.localdomain [127.0.0.1]) by gate.crashing.org (8.14.1/8.14.1) with ESMTP id 052Hlp3g001807; Tue, 2 Jun 2020 12:47:51 -0500 Received: (from segher@localhost) by gate.crashing.org (8.14.1/8.14.1/Submit) id 052Hlm6f001805; Tue, 2 Jun 2020 12:47:48 -0500 X-Authentication-Warning: gate.crashing.org: segher set sender to segher@kernel.crashing.org using -f Date: Tue, 2 Jun 2020 12:47:48 -0500 From: Segher Boessenkool To: Joseph Myers Subject: Re: ppc64le and 32-bit LE userland compatibility Message-ID: <20200602174748.GS31009@gate.crashing.org> References: <2047231.C4sosBPzcN@sheen> <20200602021245.GO31009@gate.crashing.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.3i X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: libc-alpha@sourceware.org, eery@paperfox.es, Daniel Kolesa , musl@lists.openwall.com, Will Springer , Palmer Dabbelt via binutils , via libc-dev , linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Tue, Jun 02, 2020 at 01:50:32PM +0000, Joseph Myers wrote: > On Mon, 1 Jun 2020, Segher Boessenkool wrote: > > > > The supported glibc ABIs are listed at > > > . > > > > powerpcle-linux already does work somewhat, and that should also he > > worth something, official or not ;-) > > > > (It has worked for very many years already... That is, I have built it > > a lot, I have no idea about running a full distro that way). > > Greg McGary's patches as referenced at > were > never merged, and I don't know how big the changes to .S files were or if > they were ever posted. Many files were subsequently fixed as part of > bringing up support for powerpc64le, but without actual 32-bit LE testing > as part of each release cycle there's not much evidence of correctness for > LE of code not used for powerpc64le. Yeah sorry, I meant I have built the toolchain parts a lot, not libc. GCC and binutils. I reckon there is more work to do in libc, certainly for configuration and similar. Segher