From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from simark.ca by simark.ca with LMTP id reKSJ3lItV9AKAAAWB0awg (envelope-from ) for ; Wed, 18 Nov 2020 11:14:49 -0500 Received: by simark.ca (Postfix, from userid 112) id 937871F08B; Wed, 18 Nov 2020 11:14:49 -0500 (EST) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on simark.ca X-Spam-Level: X-Spam-Status: No, score=0.4 required=5.0 tests=DKIM_SIGNED,MAILING_LIST_MULTI, RDNS_NONE,T_DKIM_INVALID,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.2 Received: from sourceware.org (unknown [8.43.85.97]) (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 simark.ca (Postfix) with ESMTPS id 40DDA1E552 for ; Wed, 18 Nov 2020 11:14:49 -0500 (EST) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id F0320384B110; Wed, 18 Nov 2020 16:14:48 +0000 (GMT) Received: from gateway21.websitewelcome.com (gateway21.websitewelcome.com [192.185.45.36]) by sourceware.org (Postfix) with ESMTPS id E2DD1384B110 for ; Wed, 18 Nov 2020 16:14:45 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org E2DD1384B110 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=tromey.com Authentication-Results: sourceware.org; spf=fail smtp.mailfrom=tom@tromey.com Received: from cm17.websitewelcome.com (cm17.websitewelcome.com [100.42.49.20]) by gateway21.websitewelcome.com (Postfix) with ESMTP id 66393400CECDC for ; Wed, 18 Nov 2020 10:14:45 -0600 (CST) Received: from box5379.bluehost.com ([162.241.216.53]) by cmsmtp with SMTP id fQ6Xkg8bHAAk4fQ6XkC2KO; Wed, 18 Nov 2020 10:14:45 -0600 X-Authority-Reason: nr=8 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=tromey.com; s=default; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date: References:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=Cxs6HSTcaNCLGFwn+tnRbX41FQE4msxxXjbGKnoeKgI=; b=Bcsc06Je47DnfF3BUq/CRMvwnk JWMoTHec2Sz1H+8Hk8YNh8YmRT9zQJ8C+1Hxovok1m8IGwONTiiLUurA3SBDz2hQBXxYW0PBb5gaO R2ze9gtxIXnuHBXoSe8Ymc+2y; Received: from 97-122-89-243.hlrn.qwest.net ([97.122.89.243]:52910 helo=murgatroyd) by box5379.bluehost.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.93) (envelope-from ) id 1kfQ6X-004Ar3-4Z; Wed, 18 Nov 2020 09:14:45 -0700 From: Tom Tromey To: Gary Benson via Gdb-patches Subject: Re: [PATCH] KFAIL variable-length array tests which fail with Clang References: <1605547055-25778-1-git-send-email-gbenson@redhat.com> X-Attribution: Tom Date: Wed, 18 Nov 2020 09:14:44 -0700 In-Reply-To: <1605547055-25778-1-git-send-email-gbenson@redhat.com> (Gary Benson via Gdb-patches's message of "Mon, 16 Nov 2020 17:17:35 +0000") Message-ID: <87mtzek5fv.fsf@tromey.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - box5379.bluehost.com X-AntiAbuse: Original Domain - sourceware.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - tromey.com X-BWhitelist: no X-Source-IP: 97.122.89.243 X-Source-L: No X-Exim-ID: 1kfQ6X-004Ar3-4Z X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: 97-122-89-243.hlrn.qwest.net (murgatroyd) [97.122.89.243]:52910 X-Source-Auth: tom+tromey.com X-Email-Count: 3 X-Source-Cap: ZWx5bnJvYmk7ZWx5bnJvYmk7Ym94NTM3OS5ibHVlaG9zdC5jb20= X-Local-Domain: yes X-BeenThere: gdb-patches@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gdb-patches-bounces@sourceware.org Sender: "Gdb-patches" >>>>> "Gary" == Gary Benson via Gdb-patches writes: Gary> Clang describes the upper bounds of variable length arrays using Gary> a DW_AT_count attribute which references the DIE of a synthetic Gary> variable whose value is specified using a DW_AT_location. In Gary> some cases GDB correctly handles these, but in other cases GDB Gary> adds an extra dereference causing the test to fail. This commit Gary> marks these failing tests as caused by PR gdb/26905 when the Gary> test executable was built using Clang. Shouldn't we just fix the gdb bug instead? Or is there something preventing that? I feel like I may not fully appreciate the problem. Tom