From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by sourceware.org (Postfix) with ESMTPS id 3CF5D3856957 for ; Tue, 21 Jun 2022 13:24:23 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 3CF5D3856957 Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-605-uGT7rYPbNCSHRIhVLU8jLg-1; Tue, 21 Jun 2022 09:24:21 -0400 X-MC-Unique: uGT7rYPbNCSHRIhVLU8jLg-1 Received: from smtp.corp.redhat.com (int-mx09.intmail.prod.int.rdu2.redhat.com [10.11.54.9]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id E0373808788; Tue, 21 Jun 2022 13:24:20 +0000 (UTC) Received: from tucnak.zalov.cz (unknown [10.39.192.14]) by smtp.corp.redhat.com (Postfix) with ESMTPS id A0ADB492C3B; Tue, 21 Jun 2022 13:24:20 +0000 (UTC) Received: from tucnak.zalov.cz (localhost [127.0.0.1]) by tucnak.zalov.cz (8.17.1/8.17.1) with ESMTPS id 25LDOH1H696147 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Tue, 21 Jun 2022 15:24:18 +0200 Received: (from jakub@localhost) by tucnak.zalov.cz (8.17.1/8.17.1/Submit) id 25LDOHxG696146; Tue, 21 Jun 2022 15:24:17 +0200 Date: Tue, 21 Jun 2022 15:24:16 +0200 From: Jakub Jelinek To: Sebastian Huber Cc: GCC Development Subject: Re: _Unwind_Resume() references in libgcc division functions Message-ID: Reply-To: Jakub Jelinek References: <0da8d95f-7102-4324-2737-82ff3c4b7e27@embedded-brains.de> MIME-Version: 1.0 In-Reply-To: <0da8d95f-7102-4324-2737-82ff3c4b7e27@embedded-brains.de> X-Scanned-By: MIMEDefang 2.85 on 10.11.54.9 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, RCVD_IN_DNSWL_LOW, SPF_HELO_NONE, SPF_NONE, 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: Tue, 21 Jun 2022 13:24:24 -0000 On Tue, Jun 21, 2022 at 03:13:19PM +0200, Sebastian Huber wrote: > Hello, > > I noticed that several division related routines provided by libgcc such as > __divdi3, __moddi3 and __umoddi3 have references to _Unwind_Resume for the > sparc-rtems target. For example: That is because: ifeq ($(LIB2_DIVMOD_EXCEPTION_FLAGS),) # Provide default flags for compiling divmod functions, if they haven't been # set already by a target-specific Makefile fragment. LIB2_DIVMOD_EXCEPTION_FLAGS := -fexceptions -fnon-call-exceptions endif which is there so that e.g. Ada or other -fnon-call-exceptions languages can have properly working divisions. Jakub