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=-2.3 required=3.0 tests=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 8C2BCC10DCE for ; Sun, 8 Mar 2020 14:42:40 +0000 (UTC) Received: from isis.lip6.fr (isis.lip6.fr [132.227.60.2]) (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 12AD6206D7 for ; Sun, 8 Mar 2020 14:42:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 12AD6206D7 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=inria.fr Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=cocci-bounces@systeme.lip6.fr Received: from systeme.lip6.fr (systeme.lip6.fr [132.227.104.7]) by isis.lip6.fr (8.15.2/8.15.2) with ESMTP id 028EgR3B001348; Sun, 8 Mar 2020 15:42:27 +0100 (CET) Received: from systeme.lip6.fr (systeme.lip6.fr [127.0.0.1]) by systeme.lip6.fr (Postfix) with ESMTP id 5D48E77F4; Sun, 8 Mar 2020 15:42:27 +0100 (CET) Received: from isis.lip6.fr (isis.lip6.fr [132.227.60.2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by systeme.lip6.fr (Postfix) with ESMTPS id C88DE7742 for ; Sun, 8 Mar 2020 15:42:25 +0100 (CET) Received: from mail2-relais-roc.national.inria.fr (mail2-relais-roc.national.inria.fr [192.134.164.83]) by isis.lip6.fr (8.15.2/8.15.2) with ESMTPS id 028EgPHX000100 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Sun, 8 Mar 2020 15:42:25 +0100 (CET) X-IronPort-AV: E=Sophos;i="5.70,530,1574118000"; d="scan'208";a="439369399" Received: from abo-173-121-68.mrs.modulonet.fr (HELO hadrien) ([85.68.121.173]) by mail2-relais-roc.national.inria.fr with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 08 Mar 2020 15:42:25 +0100 Date: Sun, 8 Mar 2020 15:42:24 +0100 (CET) From: Julia Lawall X-X-Sender: jll@hadrien To: Markus Elfring In-Reply-To: <127b687b-7139-e3b3-bc5a-13461609851c@web.de> Message-ID: References: <127b687b-7139-e3b3-bc5a-13461609851c@web.de> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="8323329-1255706079-1583678545=:2400" X-Greylist: Sender IP whitelisted, Sender e-mail whitelisted, not delayed by milter-greylist-4.4.3 (isis.lip6.fr [132.227.60.2]); Sun, 08 Mar 2020 15:42:28 +0100 (CET) X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.4.3 (isis.lip6.fr [132.227.60.2]); Sun, 08 Mar 2020 15:42:25 +0100 (CET) X-Scanned-By: MIMEDefang 2.78 on 132.227.60.2 X-Scanned-By: MIMEDefang 2.78 on 132.227.60.2 Cc: Coccinelle Subject: Re: [Cocci] Checking two error messages X-BeenThere: cocci@systeme.lip6.fr X-Mailman-Version: 2.1.13 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: cocci-bounces@systeme.lip6.fr Errors-To: cocci-bounces@systeme.lip6.fr This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --8323329-1255706079-1583678545=:2400 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT On Sun, 8 Mar 2020, Markus Elfring wrote: > Hello, > > I have tried the following small script variant out again for > the semantic patch language. > > @display@ > expression action; > expression* pointer, target, x; > identifier member, var; > statement is; > type t; > @@ > ( > *t* var = pointer->member; > | > *pointer->member; > | > *target = pointer->member; > | > *t* var = pointer->member(...); > | > *pointer->member(...); > | > *target = pointer->member(...); > ) > ... when any > when != pointer = \( action(...) \| x \) > *if ( > ( !pointer > | pointer == NULL > ) pointer == NULL would have been sufficient (not related to the noted problems). > ) > is > > > The software “Coccinelle 1.0.8-00029-ga549b9f0” (OCaml 4.10.0) reports the following error messages > for an analysis approach on source files from “Linux next-20200306”. > > > elfring@Sonne:~/Projekte/Linux/next-patched> spatch ~/Projekte/Coccinelle/janitor/show_pointer_access_before_null_check3.cocci drivers/firmware/efi/runtime-wrappers.c > … > Fatal error: exception File "engine/ctlcocci_integration.ml", line 361, characters 4-10: Assertion failed > elfring@Sonne:~/Projekte/Linux/next-patched> spatch ~/Projekte/Coccinelle/janitor/show_pointer_access_before_null_check3.cocci net/core/dev.c > … > no position information Thanks for the reports. These are related to dead code and will be addressed sooner (second case) or later (first case). julia --8323329-1255706079-1583678545=:2400 Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Cocci mailing list Cocci@systeme.lip6.fr https://systeme.lip6.fr/mailman/listinfo/cocci --8323329-1255706079-1583678545=:2400--