From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-out.m-online.net (mail-out.m-online.net [212.18.0.9]) by sourceware.org (Postfix) with ESMTPS id CA2703838031 for ; Mon, 16 May 2022 14:39:20 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org CA2703838031 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=linux-m68k.org Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=nefkom.net Received: from frontend01.mail.m-online.net (unknown [192.168.8.182]) by mail-out.m-online.net (Postfix) with ESMTP id 4L222H4vmtz1r3F2; Mon, 16 May 2022 16:39:19 +0200 (CEST) Received: from localhost (dynscan1.mnet-online.de [192.168.6.70]) by mail.m-online.net (Postfix) with ESMTP id 4L222H2lKtz1qqkD; Mon, 16 May 2022 16:39:19 +0200 (CEST) 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 Abkxn9ZnXwLd; Mon, 16 May 2022 16:39:18 +0200 (CEST) X-Auth-Info: mdtSFyD0/+dgUOvRaJYg/M1mnGl1o18apo4LXljTUXZAaNjI5RhLI6p7WbG6gO+Z Received: from igel.home (ppp-46-244-175-121.dynamic.mnet-online.de [46.244.175.121]) (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; Mon, 16 May 2022 16:39:18 +0200 (CEST) Received: by igel.home (Postfix, from userid 1000) id 3689F2C3A72; Mon, 16 May 2022 16:39:18 +0200 (CEST) From: Andreas Schwab To: Andreas Krebbel via Gcc Subject: Re: CFI for saved argument registers References: <7d266787-9a64-07e6-bf7b-1bd01119517c@linux.ibm.com> X-Yow: My forehead feels like a PACKAGE of moist CRANBERRIES in a remote FRENCH OUTPOST!! Date: Mon, 16 May 2022 16:39:18 +0200 In-Reply-To: <7d266787-9a64-07e6-bf7b-1bd01119517c@linux.ibm.com> (Andreas Krebbel via Gcc's message of "Mon, 16 May 2022 08:29:32 +0200") Message-ID: <87k0ala6eh.fsf@igel.home> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Spam-Status: No, score=-2.8 required=5.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, KAM_DMARC_STATUS, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 16 May 2022 14:39:22 -0000 On Mai 16 2022, Andreas Krebbel via Gcc wrote: > The only way I see right now is adding a new reg note to invalidate > the save information in the reg_save array in dwarf2cfi. > > Would this be acceptable? Is there perhaps an easier way to achieve that? Doesn't it work to use .cfi_remember_state/.cfi_restore_state? -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1 "And now for something completely different."