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=-2.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,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 0B550C43331 for ; Tue, 31 Mar 2020 21:27:52 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id C67BE206DB for ; Tue, 31 Mar 2020 21:27:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="FxE9cQ7z" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C67BE206DB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=codesourcery.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-snps-arc-bounces+linux-snps-arc=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:Message-ID: In-Reply-To:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=cvagHh8hlQTi+N1SMnZZL9mfTISYNOM3SCst0cQs87E=; b=FxE9cQ7zBaf7UB kLwdh2mhFma+eENW2w998C4cUoGcUyFn+5xhSZDv/DeZ1OoLsyKXyNdrzRALq5+mCJwnzHzoPaL+/ AyKnMhVdj0mq9fOHWiXJfmBvJh+xUNNxWyThmXueLA5LeGni8vTWcuAzw/9QJOUrS0+J5Sg38z0MU nuegw5Thbg6X/d7GZDK+WPMppSKAytTjO4fVvZyoL9r09cYRl6KhMmaN2K4P3JpGIeJVIN6pkUItl GHRgBgI9VIKEfFmVcBZLkpicnYpcAWhh2qH6yeGPmZdlu+bLw3t/NPAUmML/3T35ZvibZK7QXXmUo 2bUw40gELRF5eTahWuAA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jJOQH-0005Pk-U2; Tue, 31 Mar 2020 21:27:49 +0000 Received: from esa4.mentor.iphmx.com ([68.232.137.252]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jJOQF-0005PT-DR for linux-snps-arc@lists.infradead.org; Tue, 31 Mar 2020 21:27:48 +0000 IronPort-SDR: Zo7TT2WtoTdfS2iPZ2WNG80k2QeQhfDWsfkkhUa7jhYMXHSqgXMSJcGCJP1HpQrmhZ1JVMxJy0 LEKzWt/8lMtq+W7ovQg4cSdLfR2g4Sf7tsbP5O9KWtU29HVrLfbcqCmC81Di8fsoKiiYeMVpMr ZP7qg1L2Ca1AL9fpN2n3E1sncFuNnAbM30yr7B+MdTz+XLU1R1EUAjje3PkINaLxUeyzdfaWbw ZZcNe11SP2PEOgnkviHXI8t0D5rA0PAaXMsoHdDbZ9oTQeHfS2rRILD88BYoNq1W4iH42b+cqP g3o= X-IronPort-AV: E=Sophos;i="5.72,329,1580803200"; d="scan'208";a="47362457" Received: from orw-gwy-02-in.mentorg.com ([192.94.38.167]) by esa4.mentor.iphmx.com with ESMTP; 31 Mar 2020 13:27:45 -0800 IronPort-SDR: c0do3LZlXYdRjAz07EIdam+Z7NtsRUBG8Na9BzjQKGtw9yEza1jfIoc0cDF4KdszPLAuKUHFns JfJu/U9Vk1/9qClryk8TkHMiUcNQl0WdttP1vkyktS68Jk6tCsJXLdFe2bPHRIA5Ds4/moHNdS 8qkZ+RtxxuB9FSd2lQQvdSwIBN5fyvcYop6l+BXShoBOmlbgBseMXg27vEf6NvqwFj9SArKxNt x4LkLy0Oo3tCv0KlC3wFXO/1Val0tZvzxM812DHNOjmTdsLBNLvn5Ko/CJECE8CY1XM8I18tah 23s= Date: Tue, 31 Mar 2020 21:27:39 +0000 From: Joseph Myers X-X-Sender: jsm28@digraph.polyomino.org.uk To: Vineet Gupta Subject: Re: Big Endian support as multi-ABI (was Re: [PATCH v4 02/15] ARC: ABI Implementation) In-Reply-To: Message-ID: References: <20200313030419.15843-1-vgupta@synopsys.com> <20200313030419.15843-3-vgupta@synopsys.com> <7a3df848-1ef6-9e54-3b5a-9cdfcaf436a7@gmail.com> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 X-Originating-IP: [137.202.0.90] X-ClientProxiedBy: SVR-IES-MBX-04.mgc.mentorg.com (139.181.222.4) To SVR-IES-MBX-03.mgc.mentorg.com (139.181.222.3) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200331_142747_484559_A0B12390 X-CRM114-Status: UNSURE ( 4.17 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-snps-arc@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on Synopsys ARC Processors List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "linux-snps-arc@lists.infradead.org" , "libc-alpha@sourceware.org" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-snps-arc" Errors-To: linux-snps-arc-bounces+linux-snps-arc=archiver.kernel.org@lists.infradead.org On Tue, 31 Mar 2020, Vineet Gupta via Libc-alpha wrote: > But a BE system can't possibly be mixed with a LE, its not really a > multilib case Indeed. The Linux kernel does not support running BE processes on an LE kernel or vice versa, even when the underlying architecture does support runtime changes of endianness. So all the pieces that are relevant for 32-bit / 64-bit coexistence like that are irrelevant (but each ABI should still have a unique dynamic linker name). -- Joseph S. Myers joseph@codesourcery.com _______________________________________________ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc