DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org AE9DC38618A5
Subject: Re: gdb not working
To: cygwin AT cygwin DOT com
References: <VI1PR03MB6446FA40EEFB0EA70F30BDEABEA70 AT VI1PR03MB6446 DOT eurprd03 DOT prod DOT outlook DOT com>
 <b46cb846-67c2-cf89-a7cf-2893eb7272af AT dronecode DOT org DOT uk>
 <VI1PR03MB64466C55A1E70A362C185F85BEA70 AT VI1PR03MB6446 DOT eurprd03 DOT prod DOT outlook DOT com>
 <2585ec4c-4711-8f75-4166-c9905bc42e50 AT cornell DOT edu>
 <VI1PR03MB64465EA77323D6609D159168BEA40 AT VI1PR03MB6446 DOT eurprd03 DOT prod DOT outlook DOT com>
 <b8878848-bcff-15b7-0bac-54208cff0df6 AT gmail DOT com>
 <VI1PR03MB64466A47A1F2E0238C039DEDBEA40 AT VI1PR03MB6446 DOT eurprd03 DOT prod DOT outlook DOT com>
Message-ID: <e627c849-05e6-ee71-7864-aae017b133d7@cornell.edu>
Date: Mon, 18 Jan 2021 11:50:34 -0500
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101
 Thunderbird/78.6.1
In-Reply-To: <VI1PR03MB64466A47A1F2E0238C039DEDBEA40@VI1PR03MB6446.eurprd03.prod.outlook.com>
Content-Language: en-US
MIME-Version: 1.0
X-MS-Exchange-MessageSentRepresentingType: 1
Received: from [10.13.22.4] (65.112.130.200) by
 BN3PR05CA0017.namprd05.prod.outlook.com (2603:10b6:400::27) with Microsoft
 SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id
 15.20.3784.9 via Frontend Transport; Mon, 18 Jan 2021 16:50:36 +0000
X-MS-PublicTrafficType: Email
X-MS-Office365-Filtering-Correlation-Id: e95a259f-1896-4b03-a55f-08d8bbd12dbb
X-MS-TrafficTypeDiagnostic: BN8PR04MB6356:
X-Microsoft-Antispam-PRVS: <BN8PR04MB6356033FAEA639CC90F38E04D8A40 AT BN8PR04MB6356 DOT namprd04 DOT prod DOT outlook DOT com>
X-MS-Oob-TLC-OOBClassifiers: OLM:6430;
X-MS-Exchange-SenderADCheck: 1
X-Microsoft-Antispam: BCL:0;
X-Microsoft-Antispam-Message-Info: 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
X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:;
 IPV:NLI; SFV:NSPM; H:BN7PR04MB4388.namprd04.prod.outlook.com; PTR:; CAT:NONE;
 SFS:(4636009)(39860400002)(366004)(396003)(376002)(346002)(136003)(8936002)(86362001)(5660300002)(75432002)(31686004)(8676002)(66946007)(6486002)(66556008)(66476007)(16576012)(478600001)(53546011)(7116003)(786003)(36756003)(52116002)(16526019)(186003)(6916009)(31696002)(83380400001)(2616005)(26005)(956004)(2906002)(316002)(3480700007)(43740500002)(45980500001)(460985005)(2480315003);
 DIR:OUT; SFP:1102; 
X-MS-Exchange-AntiSpam-MessageData: =?Windows-1252?Q?GiLjcg+tldP+Oc2yPCKPB5xW8NjzRbkdHC/L/NSlVehTmmSD+Xoh9QbC?=
 =?Windows-1252?Q?vtlLirZJBE4kxMAfnVlq7W4f7sLMrhw6bV+ieiRmLRBNXLUsGzDrG1e3?=
 =?Windows-1252?Q?LGSzPKyblqtcH2a2wTXNz71Ez74Rs/VFMp0itgfKOWB5zFkVc3cZhJLu?=
 =?Windows-1252?Q?27frSawjSy4Y5Rm3ggGLCagIubJTGNl3iNR4fSRBpc0j3CFs9nCbFzxm?=
 =?Windows-1252?Q?Kp1pcgYEJ0LHNM7Jqvza/Q6W8ONb28xDUDCAqZ+qTOD7dT7HfMqTUjZU?=
 =?Windows-1252?Q?eocfD1KdeMXb2hak1+UFSQ7zJ0v/beiV0lfictczivWPO+yvtgyiDPYe?=
 =?Windows-1252?Q?k4iJhCayqSlWvL2R00wUjLnu6hkK6xCcNBEBqCvDitNac0rLAwGmaDVk?=
 =?Windows-1252?Q?p6g/VwfLtsFb3StvleawEKAJIn7tiEf+GuoChGJGBxEHF/xgeHZQGbiy?=
 =?Windows-1252?Q?VFt0r+GRp28XALOJZJcDQhLv3QU4CDJXqZhd3eK6+B87wQe+A07eAQJJ?=
 =?Windows-1252?Q?zRj11nNu0VN2/nBAzLnOB+S9h2Ssx9qCJOCWSbuM8K214MOo8+hNVtpZ?=
 =?Windows-1252?Q?mAeXKsi1xyQIEpMZjVm4H4MiogizIjWSN0oxuAW2Kby82D6ZR88UjD7u?=
 =?Windows-1252?Q?dQTeeeua5ds7a1F7QTPcDXtIXlw2zN73GHwfXJxHQCAlc5b5CQCPkFr7?=
 =?Windows-1252?Q?s8/LzA2WWQfi4AMnbsq9DuO2ZCbKi5dEhGfxWllf1edN5Mo63vM3ByWc?=
 =?Windows-1252?Q?Qr4la2khzNgUA/eQeAfsoQ1H6V1jp710b040Mio+Uk9xa1w8w/+DshsD?=
 =?Windows-1252?Q?HLbcTqpthdQgIer+eqxArH4y1szigNLcJ/aE/YUQOAXMR4Ad9Yqq/nBc?=
 =?Windows-1252?Q?p413H8l+CK9RBfE3LD8engOJnBbxiQ8DXlyycyCbCixroA4AmfNcFQxV?=
 =?Windows-1252?Q?nlrMwc7n3bn1ebk7k1rA8uTwIrVoVw27klQUSpIVgNylGT+ZireczAP5?=
 =?Windows-1252?Q?WhNskGHCw0R+PH1jOyi7mpSrYVHYnZCMSXRKEt4FbGZ/v67gBOucIYLP?=
 =?Windows-1252?Q?rQuJK1sskF5eIVvv?=
X-OriginatorOrg: cornell.edu
X-MS-Exchange-CrossTenant-Network-Message-Id: e95a259f-1896-4b03-a55f-08d8bbd12dbb
X-MS-Exchange-CrossTenant-AuthSource: BN7PR04MB4388.namprd04.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Jan 2021 16:50:36.4335 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-CrossTenant-Id: 5d7e4366-1b9b-45cf-8e79-b14b27df46e1
X-MS-Exchange-CrossTenant-MailboxType: HOSTED
X-MS-Exchange-CrossTenant-UserPrincipalName: kYRrXsCcg0nT3o62D+UZD2vJX8dU2HcLN/yiPo5oahKWBV4lcWLASNBITGjYvTsXslDbv4fa8TLaEFB0hh/BXw==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN8PR04MB6356
X-Spam-Status: No, score=-3.5 required=5.0 tests=BAYES_00, DKIM_SIGNED,
 DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, MSGID_FROM_MTA_HEADER, NICE_REPLY_A,
 RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_PASS, SPF_PASS,
 TXREP autolearn=ham autolearn_force=no version=3.4.2
X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on
 server2.sourceware.org
X-BeenThere: cygwin AT cygwin DOT com
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: General Cygwin discussions and problem reports <cygwin.cygwin.com>
List-Unsubscribe: <https://cygwin.com/mailman/options/cygwin>,
 <mailto:cygwin-request AT cygwin DOT com?subject=unsubscribe>
List-Archive: <https://cygwin.com/pipermail/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-request AT cygwin DOT com?subject=help>
List-Subscribe: <https://cygwin.com/mailman/listinfo/cygwin>,
 <mailto:cygwin-request AT cygwin DOT com?subject=subscribe>
From: Ken Brown via Cygwin <cygwin AT cygwin DOT com>
Reply-To: Ken Brown <kbrown AT cornell DOT edu>
Content-Transfer-Encoding: 7bit
Content-Type: text/plain; charset="us-ascii"; Format="flowed"
Errors-To: cygwin-bounces AT cygwin DOT com
Sender: "Cygwin" <cygwin-bounces AT cygwin DOT com>

On 1/18/2021 8:54 AM, Lemke, Michael SF/HZA-ZIC2 wrote:
> On Monday, January 18, 2021 2:23 PM Marco Atzeri wrote:
>> On 18.01.2021 14:08, Lemke, Michael SF/HZA-ZIC2 wrote:
>>> On Friday, January 15, 2021 9:02 PM Ken Brown wrote:
>>>> On 1/15/2021 1:47 PM, Lemke, Michael SF/HZA-ZIC2 wrote:
>>>>> On Friday, January 15, 2021 4:45 PM Jon Turney wrote:
>>>>>> On 15/01/2021 12:28, Lemke, Michael wrote:
>>>>>>> I just installed a fresh copy of Cygwin and gdb with setup-x86_64.exe.
>>>>>>> However, gdb does not produce any output.
>>>>>>>
>>>
>>>>
>>>>> Also ldd `which gdb` is
>>>>> fine.
>>>>
>>>> Please show the output.
>>>
>>> pc> ldd `which gdb`
>>
>>>           cyggcc_s-seh-1.dll => /usr/bin/cyggcc_s-seh-1.dll (0x3fdf60000)
>>>           cygstdc++-6.dll => /usr/bin/cygstdc++-6.dll (0x3f8840000)
>>
>>>           cyggcc_s-seh-1.dll => /usr/bin/cyggcc_s-seh-1.dll (0x170000)
>>                                                 this is very low ^^^^
>>>           cygstdc++-6.dll => /usr/bin/cygstdc++-6.dll (0x3600000)
>>
>>>           cygicuuc61.dll => /usr/bin/cygicuuc61.dll (0x3fc240000)
>>>           cygicuuc61.dll => /usr/bin/cygicuuc61.dll (0x3600000)
>>
>>
>> I do not see duplicate entries on my system. it seems a BLODA
>> is interfering with dll's loading
>>
> 
> It might very well be. I also noticed the output of ldd is not reproducible.
> It shows different duplicate entries when run repeatedly and the load
> address you marked is also a duplicate:
> 
>   pc> ldd `which gdb`|grep --color gcc
>          cyggcc_s-seh-1.dll => /usr/bin/cyggcc_s-seh-1.dll (0x3fdf60000)
>          cyggcc_s-seh-1.dll => /usr/bin/cyggcc_s-seh-1.dll (0x170000)
>   pc> ldd `which gdb` | grep --color gcc
>          cyggcc_s-seh-1.dll => /usr/bin/cyggcc_s-seh-1.dll (0x3fdf60000)
>   pc> ldd `which gdb` | grep --color gcc
>          cyggcc_s-seh-1.dll => /usr/bin/cyggcc_s-seh-1.dll (0x3fdf60000)
>   pc> ldd `which gdb` | grep --color gcc
>          cyggcc_s-seh-1.dll => /usr/bin/cyggcc_s-seh-1.dll (0x3fdf60000)
>   pc> ldd `which gdb` | grep --color gcc
>          cyggcc_s-seh-1.dll => /usr/bin/cyggcc_s-seh-1.dll (0x3fdf60000)
>   pc> ldd `which gdb` | grep --color gcc
>          cyggcc_s-seh-1.dll => /usr/bin/cyggcc_s-seh-1.dll (0x3fdf60000)
>   pc> ldd `which gdb` | grep --color gcc
>          cyggcc_s-seh-1.dll => /usr/bin/cyggcc_s-seh-1.dll (0x3fdf60000)
>          cyggcc_s-seh-1.dll => /usr/bin/cyggcc_s-seh-1.dll (0x170000)
>   pc> ldd `which gdb` | grep --color gcc
>          cyggcc_s-seh-1.dll => /usr/bin/cyggcc_s-seh-1.dll (0x3fdf60000)
>   pc> ldd `which gdb` | grep --color gcc
>          cyggcc_s-seh-1.dll => /usr/bin/cyggcc_s-seh-1.dll (0x3fdf60000)
>          cyggcc_s-seh-1.dll => /usr/bin/cyggcc_s-seh-1.dll (0xa0000)
> 
> Hm, is gdb dependent on gcc? I just noticed my gcc is apparently broken:
>   pc> cygcheck -c gcc
> Cygwin Package Information
> Package              Version        Status

The package containing gcc is called "gcc-core", not "gcc":

$ cygcheck -f /usr/bin/gcc.exe
gcc-core-10.2.0-1

$ cygcheck -c gcc-core
Cygwin Package Information
Package              Version        Status
gcc-core             10.2.0-1       OK

> Other than going through the published BLODA list is there a way I could
> test and find out what is interfering? I ask because we have a lot of
> stuff installed for teleworking, especially on the network side.

You can sometimes catch BLODA by running strace.  It may show some DLL being 
loaded that shouldn't be, typically from security software.

Ken
--
Problem reports:      https://cygwin.com/problems.html
FAQ:                  https://cygwin.com/faq/
Documentation:        https://cygwin.com/docs.html
Unsubscribe info:     https://cygwin.com/ml/#unsubscribe-simple