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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 EC570C27C44 for ; Mon, 3 Jun 2024 09:35:02 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sE45h-0007FU-Th; Mon, 03 Jun 2024 05:34:57 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sE45g-0007F8-Gk for qemu-devel@nongnu.org; Mon, 03 Jun 2024 05:34:56 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sE45a-0002VZ-6K for qemu-devel@nongnu.org; Mon, 03 Jun 2024 05:34:56 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1717407289; h=from:from:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=vCV8/vEXAVrsC6NOzVdfJCMgixLgChXW4n/oSVQ4gFs=; b=UqVUNPUYPBoGuuIUZz5XnhvUSBR/wa10ZklpE+oIA1qy8sKgvb9iASQh76kw/DuoXss45G iF1pMdm9t2/g2lqwWoHqoYkVGN6MbBORxoGSWOqkdvPD+DHgn6QGcAxF+l4CByW+BJWD5H hB2lVC60rUILLZ3g2Uqlin3NjDqTyiQ= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-423-COq2i__BPsmctxDOzyUfhQ-1; Mon, 03 Jun 2024 05:34:46 -0400 X-MC-Unique: COq2i__BPsmctxDOzyUfhQ-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 11E5B29AA382; Mon, 3 Jun 2024 09:34:46 +0000 (UTC) Received: from redhat.com (unknown [10.42.28.80]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 6FBC21050174; Mon, 3 Jun 2024 09:34:45 +0000 (UTC) Date: Mon, 3 Jun 2024 10:34:43 +0100 From: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= To: Thomas Huth Cc: qemu-devel@nongnu.org, Alex =?utf-8?Q?Benn=C3=A9e?= , Philippe =?utf-8?Q?Mathieu-Daud=C3=A9?= Subject: Re: [PATCH 3/5] .gitlab-ci.d/buildtest.yml: Use -fno-sanitize=function in the clang-system job Message-ID: References: <20240601070543.37786-1-thuth@redhat.com> <20240601070543.37786-4-thuth@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20240601070543.37786-4-thuth@redhat.com> User-Agent: Mutt/2.2.12 (2023-09-09) X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.3 Received-SPF: pass client-ip=170.10.129.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -22 X-Spam_score: -2.3 X-Spam_bar: -- X-Spam_report: (-2.3 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.142, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Sat, Jun 01, 2024 at 09:05:41AM +0200, Thomas Huth wrote: > The latest version of Clang (version 18 from Fedora 40) now reports > bad function pointer casts as undefined behavior. Unfortunately, we are > still doing this in quite a lot of places in the QEMU code and some of > them are not easy to fix. So for the time being, temporarily switch this > off in the failing clang-system job until all spots in the QEMU sources > have been tackled. > > Signed-off-by: Thomas Huth > --- > .gitlab-ci.d/buildtest.yml | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/.gitlab-ci.d/buildtest.yml b/.gitlab-ci.d/buildtest.yml > index 91c57efded..0eec570310 100644 > --- a/.gitlab-ci.d/buildtest.yml > +++ b/.gitlab-ci.d/buildtest.yml > @@ -432,6 +432,7 @@ clang-system: > IMAGE: fedora > CONFIGURE_ARGS: --cc=clang --cxx=clang++ > --extra-cflags=-fsanitize=undefined --extra-cflags=-fno-sanitize-recover=undefined > + --extra-cflags=-fno-sanitize=function > TARGETS: alpha-softmmu arm-softmmu m68k-softmmu mips64-softmmu s390x-softmmu > MAKE_CHECK_ARGS: check-qtest check-tcg I think we have a gitlab issue for the functio ncast problems - good to have a comment linking to those, to remind us to remove -fno-sanitize when they're fixed. Regardless Reviewed-by: Daniel P. Berrangé With regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|