Received: by 2002:a25:1506:0:0:0:0:0 with SMTP id 6csp1066584ybv; Thu, 13 Feb 2020 15:09:26 -0800 (PST) X-Google-Smtp-Source: APXvYqx+BG2i+ochZ0hUft5pJ1ilgW9Azg0ZnzmyU7lDOcqIQAOHcVSszuY0bbcNej8AXSckz+Qr X-Received: by 2002:a9d:268:: with SMTP id 95mr15545319otb.183.1581635366027; Thu, 13 Feb 2020 15:09:26 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1581635366; cv=none; d=google.com; s=arc-20160816; b=ngXbppY5+5eU6aG3dVtMp8bML75D+7492veRkJa/Q3Ea+JAL8+AHfDmO9lCowlDyBE m2TPe57r68wOwVvT+uCOuftXK2TEiQmjSiMBmKk/FHFdkPW845hvIKHnO7SZfgpZoTL9 IXBy3vLgEDrG2sbocPzB0eHhSLSAA9KhNAHon0VmTXj4xSpgxSrqjHZWN9nugNh5vbvq SfYLptRU6Sguf9GQAQ1AO9PycIc+Ciq8c/7bpKD51RLXa+JzjlQ6VwLhxPg9+GRj5zZg hDodAKq8MCEH7LpuR31zpN8sn5mScGKLHJq1phqxdn+gfScHkdXiV0jpmC53wq/tN4wm /4Ag== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:autocrypt:from:references:cc:to:subject; bh=v2Pt6h/Dw3c/47ETCKbWveiigG6zW1X9PufqC69Eudc=; b=CitNehWnL393V+nyAwKlpqM0m+poENJjSYVgi34UryoORq4cqX/VNpgCmOc9qK0O3g 1YJCP2F/dPnL6o+a63IsVauNL3milpseAJ5KzoUGyJyxPRBDmD4C4p+PZcjwAWaILMjg 0yYNVCwu1cmfXHjVgngXLhmmbRO/22sdtI1zMZtzyNPNsw6ZkaDLs5+Yeh0DdshuJ9VI yJsJZyXzDreXkT708RH/nTFVw/bQonjStfoOW4fQM81NSxK3PZJd/1FjioaqfflxxCU6 HAtTX622QpSbmlwYaLRIlgXmHTEYYPWiJZ59l7w5UsgkF+K6DhI6YhLACP8NsPSsKf7R EZDg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-ext4-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-ext4-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id j16si1746732otq.23.2020.02.13.15.09.00; Thu, 13 Feb 2020 15:09:26 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-ext4-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-ext4-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-ext4-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727571AbgBMXI4 (ORCPT + 99 others); Thu, 13 Feb 2020 18:08:56 -0500 Received: from sandeen.net ([63.231.237.45]:38392 "EHLO sandeen.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726780AbgBMXIz (ORCPT ); Thu, 13 Feb 2020 18:08:55 -0500 Received: from [10.0.0.4] (liberator [10.0.0.4]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by sandeen.net (Postfix) with ESMTPSA id A07062B25; Thu, 13 Feb 2020 17:08:47 -0600 (CST) Subject: Re: [PATCH v2] tst_libext2fs: Avoid multiple definition of global variables To: Lukas Czerner , linux-ext4@vger.kernel.org Cc: tytso@mit.edu, sandeen@redhat.com References: <20200130132122.21150-1-lczerner@redhat.com> <20200210152459.19903-1-lczerner@redhat.com> From: Eric Sandeen Autocrypt: addr=sandeen@sandeen.net; prefer-encrypt=mutual; keydata= mQINBE6x99QBEADMR+yNFBc1Y5avoUhzI/sdR9ANwznsNpiCtZlaO4pIWvqQJCjBzp96cpCs nQZV32nqJBYnDpBDITBqTa/EF+IrHx8gKq8TaSBLHUq2ju2gJJLfBoL7V3807PQcI18YzkF+ WL05ODFQ2cemDhx5uLghHEeOxuGj+1AI+kh/FCzMedHc6k87Yu2ZuaWF+Gh1W2ix6hikRJmQ vj5BEeAx7xKkyBhzdbNIbbjV/iGi9b26B/dNcyd5w2My2gxMtxaiP7q5b6GM2rsQklHP8FtW ZiYO7jsg/qIppR1C6Zr5jK1GQlMUIclYFeBbKggJ9mSwXJH7MIftilGQ8KDvNuV5AbkronGC sEEHj2khs7GfVv4pmUUHf1MRIvV0x3WJkpmhuZaYg8AdJlyGKgp+TQ7B+wCjNTdVqMI1vDk2 BS6Rg851ay7AypbCPx2w4d8jIkQEgNjACHVDU89PNKAjScK1aTnW+HNUqg9BliCvuX5g4z2j gJBs57loTWAGe2Ve3cMy3VoQ40Wt3yKK0Eno8jfgzgb48wyycINZgnseMRhxc2c8hd51tftK LKhPj4c7uqjnBjrgOVaVBupGUmvLiePlnW56zJZ51BR5igWnILeOJ1ZIcf7KsaHyE6B1mG+X dmYtjDhjf3NAcoBWJuj8euxMB6TcQN2MrSXy5wSKaw40evooGwARAQABtCVFcmljIFIuIFNh bmRlZW4gPHNhbmRlZW5Ac2FuZGVlbi5uZXQ+iQI7BBMBAgAlAhsDBgsJCAcDAgYVCAIJCgsE FgIDAQIeAQIXgAUCUzMzbAIZAQAKCRAgrhaS4T3e4Fr7D/wO+fenqVvHjq21SCjDCrt8HdVj aJ28B1SqSU2toxyg5I160GllAxEHpLFGdbFAhQfBtnmlY9eMjwmJb0sCIrkrB6XNPSPA/B2B UPISh0z2odJv35/euJF71qIFgWzp2czJHkHWwVZaZpMWWNvsLIroXoR+uA9c2V1hQFVAJZyk EE4xzfm1+oVtjIC12B9tTCuS00pY3AUy21yzNowT6SSk7HAzmtG/PJ/uSB5wEkwldB6jVs2A sjOg1wMwVvh/JHilsQg4HSmDfObmZj1d0RWlMWcUE7csRnCE0ZWBMp/ttTn+oosioGa09HAS 9jAnauznmYg43oQ5Akd8iQRxz5I58F/+JsdKvWiyrPDfYZtFS+UIgWD7x+mHBZ53Qjazszox gjwO9ehZpwUQxBm4I0lPDAKw3HJA+GwwiubTSlq5PS3P7QoCjaV8llH1bNFZMz2o8wPANiDx 5FHgpRVgwLHakoCU1Gc+LXHXBzDXt7Cj02WYHdFzMm2hXaslRdhNGowLo1SXZFXa41KGTlNe 4di53y9CK5ynV0z+YUa+5LR6RdHrHtgywdKnjeWdqhoVpsWIeORtwWGX8evNOiKJ7j0RsHha WrePTubr5nuYTDsQqgc2r4aBIOpeSRR2brlT/UE3wGgy9LY78L4EwPR0MzzecfE1Ws60iSqw Pu3vhb7h3bkCDQROsffUARAA0DrUifTrXQzqxO8aiQOC5p9Tz25Np/Tfpv1rofOwL8VPBMvJ X4P5l1V2yd70MZRUVgjmCydEyxLJ6G2YyHO2IZTEajUY0Up+b3ErOpLpZwhvgWatjifpj6bB SKuDXeThqFdkphF5kAmgfVAIkan5SxWK3+S0V2F/oxstIViBhMhDwI6XsRlnVBoLLYcEilxA 2FlRUS7MOZGmRJkRtdGD5koVZSM6xVZQSmfEBaYQ/WJBGJQdPy94nnlAVn3lH3+N7pXvNUuC GV+t4YUt3tLcRuIpYBCOWlc7bpgeCps5Xa0dIZgJ8Louu6OBJ5vVXjPxTlkFdT0S0/uerCG5 1u8p6sGRLnUeAUGkQfIUqGUjW2rHaXgWNvzOV6i3tf9YaiXKl3avFaNW1kKBs0T5M1cnlWZU Utl6k04lz5OjoNY9J/bGyV3DSlkblXRMK87iLYQSrcV6cFz9PRl4vW1LGff3xRQHngeN5fPx ze8X5NE3hb+SSwyMSEqJxhVTXJVfQWWW0dQxP7HNwqmOWYF/6m+1gK/Y2gY3jAQnsWTru4RV TZGnKwEPmOCpSUvsTRXsVHgsWJ70qd0yOSjWuiv4b8vmD3+QFgyvCBxPMdP3xsxN5etheLMO gRwWpLn6yNFq/xtgs+ECgG+gR78yXQyA7iCs5tFs2OrMqV5juSMGmn0kxJUAEQEAAYkCHwQY AQIACQUCTrH31AIbDAAKCRAgrhaS4T3e4BKwD/0ZOOmUNOZCSOLAMjZx3mtYtjYgfUNKi0ki YPveGoRWTqbis8UitPtNrG4XxgzLOijSdOEzQwkdOIp/QnZhGNssMejCnsluK0GQd+RkFVWN mcQT78hBeGcnEMAXZKq7bkIKzvc06GFmkMbX/gAl6DiNGv0UNAX+5FYh+ucCJZSyAp3sA+9/ LKjxnTedX0aygXA6rkpX0Y0FvN/9dfm47+LGq7WAqBOyYTU3E6/+Z72bZoG/cG7ANLxcPool LOrU43oqFnD8QwcN56y4VfFj3/jDF2MX3xu4v2OjglVjMEYHTCxP3mpxesGHuqOit/FR+mF0 MP9JGfj6x+bj/9JMBtCW1bY/aPeMdPGTJvXjGtOVYblGZrSjXRn5++Uuy36CvkcrjuziSDG+ JEexGxczWwN4mrOQWhMT5Jyb+18CO+CWxJfHaYXiLEW7dI1AynL4jjn4W0MSiXpWDUw+fsBO Pk6ah10C4+R1Jc7dyUsKksMfvvhRX1hTIXhth85H16706bneTayZBhlZ/hK18uqTX+s0onG/ m1F3vYvdlE4p2ts1mmixMF7KajN9/E5RQtiSArvKTbfsB6Two4MthIuLuf+M0mI4gPl9SPlf fWCYVPhaU9o83y1KFbD/+lh1pjP7bEu/YudBvz7F2Myjh4/9GUAijrCTNeDTDAgvIJDjXuLX pA== Message-ID: Date: Thu, 13 Feb 2020 17:08:53 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:68.0) Gecko/20100101 Thunderbird/68.4.2 MIME-Version: 1.0 In-Reply-To: <20200210152459.19903-1-lczerner@redhat.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org On 2/10/20 9:24 AM, Lukas Czerner wrote: > gcc version 10 changed the default from -fcommon to -fno-common and as a > result e2fsprogs make check tests fail because tst_libext2fs.c end up > with a build error. > > This is because it defines two global variables debug_prog_name and > extra_cmds that are already defined in debugfs/debugfs.c. With -fcommon > linker was able to resolve those into the same object, however with > -fno-common it's no longer able to do it and we end up with multiple > definition errors. > > Fix the problem by using SKIP_GLOBDEFS macro to skip the variables > definition in debugfs.c. Note that debug_prog_name is also defined in > lib/ext2fs/extent.c when DEBUG macro is used, but this does not work even > with older gcc versions and is never used regardless so I am not going to > bother with it. > > Signed-off-by: Lukas Czerner > --- > v2: Previous fix wasn't really working properly Lukas explained the problem to me - wow the test binaries are tricky. ;) Reviewed-by: Eric Sandeen