From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gateway33.websitewelcome.com (gateway33.websitewelcome.com [192.185.146.130]) by sourceware.org (Postfix) with ESMTPS id B9F96388981B for ; Mon, 28 Jun 2021 20:11:41 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org B9F96388981B Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=tromey.com Authentication-Results: sourceware.org; spf=fail smtp.mailfrom=tromey.com Received: from cm14.websitewelcome.com (cm14.websitewelcome.com [100.42.49.7]) by gateway33.websitewelcome.com (Postfix) with ESMTP id 679079B12F for ; Mon, 28 Jun 2021 15:11:40 -0500 (CDT) Received: from box5379.bluehost.com ([162.241.216.53]) by cmsmtp with SMTP id xxbYl8G7N7sOixxbYl9yeR; Mon, 28 Jun 2021 15:11:40 -0500 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=rEJ9M2sIKPGjurS9DYaaQ3T+cD0z5EuuGZvpVAxQWYU=; b=xP9QTVH82kM4WWZCC09uyqz73w 0i8NsTJf7Dd0QFzrqmw0LRZY/Fnidj+4dtVbOe5hn7T7bLBobL74rRliOx2DoAYHuqWMTj+rPxsZP mo4XCkUeoDVh9jndi6Yt1YIOE; Received: from 71-211-145-10.hlrn.qwest.net ([71.211.145.10]:52552 helo=murgatroyd) by box5379.bluehost.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1lxxbY-001YnW-5i; Mon, 28 Jun 2021 14:11:40 -0600 From: Tom Tromey To: Tom de Vries Cc: Tom Tromey , gdb-patches@sourceware.org Subject: Re: [PATCH 2/2] Remove dwarf2_cu::language References: <20210608152630.4155280-1-tom@tromey.com> <20210608152630.4155280-3-tom@tromey.com> <87czsuzsvk.fsf@tromey.com> <9ba9db87-fd7b-646a-2b40-cea033f95ab7@suse.de> <87eed8h2el.fsf@tromey.com> <2a23ada7-efaf-189c-e147-db24b4e339ef@suse.de> X-Attribution: Tom Date: Mon, 28 Jun 2021 14:11:39 -0600 In-Reply-To: <2a23ada7-efaf-189c-e147-db24b4e339ef@suse.de> (Tom de Vries's message of "Tue, 15 Jun 2021 00:16:43 +0200") Message-ID: <87v95xrbpg.fsf@tromey.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (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: 71.211.145.10 X-Source-L: No X-Exim-ID: 1lxxbY-001YnW-5i X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: 71-211-145-10.hlrn.qwest.net (murgatroyd) [71.211.145.10]:52552 X-Source-Auth: tom+tromey.com X-Email-Count: 4 X-Source-Cap: ZWx5bnJvYmk7ZWx5bnJvYmk7Ym94NTM3OS5ibHVlaG9zdC5jb20= X-Local-Domain: yes X-Spam-Status: No, score=-3023.3 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, JMQ_SPF_NEUTRAL, RCVD_IN_ABUSEAT, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_PASS, SPF_NEUTRAL, TXREP autolearn=no autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org 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: , X-List-Received-Date: Mon, 28 Jun 2021 20:11:43 -0000 >>>>> "Tom" == Tom de Vries writes: Tom> Now if CU A doesn't import CU B, the namespace for CU A has two entries, Tom> and the namespace for CU B has two entries. Tom> And if CU A does import CU B, then the namespace for CU A has four Tom> entries, and the CU B has two entries. It's not safe to ignore the Tom> import because semantically there is a difference. >> What sort of test case would this affect? Tom> I've written a dwarf assembly test-case. I still don't understand why this test should differ between C and C++. IIUC -- it declares the 'inty' typedef two different ways in two different scopes, then tests that the expected output depends on the scope: Tom> +gdb_test "ptype inty" "type = int" "ptype in main" Tom> + Tom> +gdb_breakpoint "foo" Tom> +gdb_continue_to_breakpoint "continue to breakpoint for foo" Tom> + Tom> +gdb_test "ptype inty" "type = unsigned int" "ptype in foo" ... if this is correct for C, why wouldn't it be correct for C++? Tom