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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id B627FC433F5 for ; Wed, 19 Jan 2022 21:07:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:In-Reply-To: Date:References:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=zJA68UAZTKlgegoynusb5xPPMMFOFRXGbjioJp7Z8Zo=; b=h1K94tFw9ZdaW6 aGdYF3LH9O0QJPmAf/85+xc3QclbaLvNQ1pkllEsT6haOP9JOOxJsPATHTd5yii4hpl749wDUsZ8x nzzpfMl9TgB35SpGKT2DfVjOq1Y8zd5XTxTr4HF5qAYKdcHbiIp6b7MD1CdveMdjAgxQs0sS86V5t Y7hWsqI16N4dcurwH2Bysq3rkAq0Ywb2dZ/DJi0ZWW4JktYCSdBHPOLR4eIFrcZHjLSYFVI8hDQUN VnHWJ10zk3d2EUn+n4KgCnpaR+r7QDao+kJirU57jZ6ZVqhzjJXtT4AgI2fW5Ub8NYQl+SgK2W0lV X2MEumXA60osZQzYZojw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nAIBE-007SXb-Q0; Wed, 19 Jan 2022 21:07:44 +0000 Received: from mail-out.m-online.net ([212.18.0.9]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nAIBC-007SX6-Gr for linux-riscv@lists.infradead.org; Wed, 19 Jan 2022 21:07:43 +0000 Received: from frontend01.mail.m-online.net (unknown [192.168.8.182]) by mail-out.m-online.net (Postfix) with ESMTP id 4JfJBN5hcHz1qwyD; Wed, 19 Jan 2022 22:07:40 +0100 (CET) Received: from localhost (dynscan1.mnet-online.de [192.168.6.70]) by mail.m-online.net (Postfix) with ESMTP id 4JfJBN54Cfz1qqkB; Wed, 19 Jan 2022 22:07:40 +0100 (CET) X-Virus-Scanned: amavisd-new at mnet-online.de Received: from mail.mnet-online.de ([192.168.8.182]) by localhost (dynscan1.mail.m-online.net [192.168.6.70]) (amavisd-new, port 10024) with ESMTP id fa2MReFuQDWV; Wed, 19 Jan 2022 22:07:39 +0100 (CET) X-Auth-Info: a+k5wgMBRWkntvg+3VX7x/EHIpisGRCFgjaQ+T+kj0Njbe4vckVflYo3aArUijhP Received: from igel.home (ppp-46-244-165-91.dynamic.mnet-online.de [46.244.165.91]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.mnet-online.de (Postfix) with ESMTPSA; Wed, 19 Jan 2022 22:07:39 +0100 (CET) Received: by igel.home (Postfix, from userid 1000) id 74A832C36EC; Wed, 19 Jan 2022 22:07:39 +0100 (CET) From: Andreas Schwab To: Jessica Clarke Cc: Changbin Du , Paul Walmsley , Palmer Dabbelt , Albert Ou , linux-riscv , linux-kernel@vger.kernel.org Subject: Re: [PATCH] riscv: eliminate unreliable __builtin_frame_address(1) References: <20220117154433.3124-1-changbin.du@gmail.com> <87v8yg6lhf.fsf@igel.home> <8735lj78wu.fsf@igel.home> <8F8D535F-3637-4BC7-8853-B709EC5D14C9@jrtc27.com> X-Yow: Uh-oh!! I forgot to submit to COMPULSORY URINALYSIS! Date: Wed, 19 Jan 2022 22:07:39 +0100 In-Reply-To: <8F8D535F-3637-4BC7-8853-B709EC5D14C9@jrtc27.com> (Jessica Clarke's message of "Wed, 19 Jan 2022 20:48:48 +0000") Message-ID: <87y23b5t9g.fsf@igel.home> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.91 (gnu/linux) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220119_130742_731834_DAB4CB9A X-CRM114-Status: GOOD ( 11.95 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org T24gSmFuIDE5IDIwMjIsIEplc3NpY2EgQ2xhcmtlIHdyb3RlOgoKPiBNeSBwb2ludCBpcyB0aGF0 IHRoZSBvbmx5IHRoaW5nIHRoYXQgY2FuIHBvc3NpYmx5IHJlYWQgdGhlIGluY29taW5nCj4gZnJh bWUgcG9pbnRlciBvZiBhIGxlYWYgZnVuY3Rpb24gaXMgdGhlIGxlYWYgZnVuY3Rpb24gaXRzZWxm LCBhbmQgc2luY2UKPiBpdCBrbm93cyB3aGVyZSBpdOKAmXMgcHV0dGluZyBpdCB0aGVuIHRoZXJl IGlzIG5vIEFCSSBpc3N1ZSwgaXQganVzdAo+IHJlbWVtYmVycyB3aGVyZSBpdCBwdXQgaXQgYW5k IGxvYWRzIGl0IGZyb20gdGhlcmUuCgpsbHZtIHNpZGVzdGVwcyB0aGF0IGlzc3VlIGJ5IGFsd2F5 cyBzYXZpbmcgcmEgd2hlbiBjcmVhdGluZyBhIGZyYW1lLApldmVuIGluIGEgbGVhZiBmdW5jdGlv biwgc28gaXQgY2FuIHVzZSBhIGNvbnN0YW50IG9mZnNldC4KCi0tIApBbmRyZWFzIFNjaHdhYiwg c2Nod2FiQGxpbnV4LW02OGsub3JnCkdQRyBLZXkgZmluZ2VycHJpbnQgPSA3NTc4IEVCNDcgRDRF NSA0RDY5IDI1MTAgIDI1NTIgREY3MyBFNzgwIEE5REEgQUVDMQoiQW5kIG5vdyBmb3Igc29tZXRo aW5nIGNvbXBsZXRlbHkgZGlmZmVyZW50LiIKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fCmxpbnV4LXJpc2N2IG1haWxpbmcgbGlzdApsaW51eC1yaXNjdkBs aXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlz dGluZm8vbGludXgtcmlzY3YK