DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 923E3386EC30
Subject: Re: cpp /usr/include/threads.h fails; modfl segfaults
To: cygwin@cygwin.com
References: <02b16d2e-9d51-de58-807b-3b31b2565b59.ref@aol.com>
 <02b16d2e-9d51-de58-807b-3b31b2565b59@aol.com>
 <9f819e67-5476-ea48-a13f-f7a4b25d6e69@cornell.edu>
 <12c7b933-d06e-3b92-9c50-a1c3ad353a48@aol.com>
Message-ID: <4c895636-eebc-426d-33f2-2f587a181a2d@cornell.edu>
Date: Sat, 29 Aug 2020 22:56:39 -0400
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101
 Thunderbird/68.12.0
In-Reply-To: <12c7b933-d06e-3b92-9c50-a1c3ad353a48@aol.com>
Content-Language: en-US
MIME-Version: 1.0
X-MS-Exchange-MessageSentRepresentingType: 1
Received: from 255.255.255.255 (255.255.255.255) by
 BL0PR05CA0025.namprd05.prod.outlook.com (2603:10b6:208:91::35) with Microsoft
 SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id
 15.20.3348.5 via Frontend Transport; Sun, 30 Aug 2020 02:56:40 +0000
X-Originating-IP: [68.175.129.7]
X-MS-PublicTrafficType: Email
X-MS-Office365-Filtering-Correlation-Id: 9dedd316-d082-46af-4eee-08d84c905224
X-MS-TrafficTypeDiagnostic: BN3PR04MB2324:
X-Microsoft-Antispam-PRVS: <BN3PR04MB23244DC1A93EB1E6C0DAD1DFD8500@BN3PR04MB2324.namprd04.prod.outlook.com>
X-MS-Oob-TLC-OOBClassifiers: OLM:8273;
X-MS-Exchange-SenderADCheck: 1
X-Microsoft-Antispam: BCL:0;
X-Microsoft-Antispam-Message-Info: Ku3XhzIUAsneaI/eU2vGkJOQbPWUj3zv2xjniHiWIsfWytGWnJPTzolnyH+Cp6YnnyGTaciQVFO+y3/37bSfdTSAVm6Le+7htRsaSKaf8MUjsWZ5LRSpuPfGrjxCCX8nuWn97KvPwOyXEV6ouUFXZmDGZ78CHWwmhW1QKRBQ8tcSYHlxlhX8hKwLU7nf+reZy+dv4wkB+NpWg6NHsQDTpL4aWe1Ol/9Q0pipT7kxeh2UNKg0xtvZUVz4GOlVGFzlF2JmdbGJelB9/p7Vh0wHJI1OnFStgsGcmQDNpB0vQC3LjSJ+B0/DS9pzY0eUnVG3VplPYHjhUcN6mkhVGUI6TgkdxtLB1QpWVbJWcZ6JYT+lpWW+wTbWvXInWAc2opD4T9JUhXa5KDIuhJndQFn4HxHK2ClaeFGOU9HXzwCO3E7GteRd/T4l0DHHargysBfOIpRNlz081+QCG5DLaXoBCw==
X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:;
 IPV:NLI; SFV:NSPM; H:BN8PR04MB6163.namprd04.prod.outlook.com; PTR:; CAT:NONE;
 SFS:(4636009)(39860400002)(376002)(136003)(346002)(396003)(366004)(6486002)(956004)(2616005)(478600001)(75432002)(4744005)(86362001)(8936002)(26005)(8676002)(52116002)(53546011)(186003)(16576012)(6916009)(66946007)(66476007)(66556008)(786003)(316002)(31686004)(5660300002)(2906002)(31696002)(36756003)(2004002)(43740500002)(460985005)(2480315003);
 DIR:OUT; SFP:1102; 
X-MS-Exchange-AntiSpam-MessageData: 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
X-OriginatorOrg: cornell.edu
X-MS-Exchange-CrossTenant-Network-Message-Id: 9dedd316-d082-46af-4eee-08d84c905224
X-MS-Exchange-CrossTenant-AuthSource: BN8PR04MB6163.namprd04.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Aug 2020 02:56:41.2446 (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: aybWry66TkytP4QErquaQXbceXa7p87B8tTnCemfvRaw6vR9UDHL5jIlLkheVgUm8bpMAZPm3eiCLAzvnLKzJQ==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN3PR04MB2324
X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00, DKIM_SIGNED,
 DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, MSGID_FROM_MTA_HEADER, NICE_REPLY_A,
 RCVD_ILLEGAL_IP, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_PASS,
 SPF_PASS, 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: cygwin@cygwin.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@cygwin.com?subject=unsubscribe>
List-Archive: <https://cygwin.com/pipermail/cygwin/>
List-Post: <mailto:cygwin@cygwin.com>
List-Help: <mailto:cygwin-request@cygwin.com?subject=help>
List-Subscribe: <https://cygwin.com/mailman/listinfo/cygwin>,
 <mailto:cygwin-request@cygwin.com?subject=subscribe>
From: Ken Brown via Cygwin <cygwin@cygwin.com>
Reply-To: Ken Brown <kbrown@cornell.edu>
Content-Type: text/plain; charset="windows-1252"; Format="flowed"
Errors-To: cygwin-bounces@cygwin.com
Sender: "Cygwin" <cygwin-bounces@cygwin.com>
Content-Transfer-Encoding: 8bit
X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id 07U2vFA3025456

On 8/29/2020 9:21 PM, airplanemath via Cygwin wrote:
> Stepping back through Cygwin releases, I find:
> 
> $ gcc -Og -ggdb -g3 -Wall -Wextra -std=c99 -pedantic test.c -o test.exe
> 
> $ ./test.exe 123.456
> 123.456000 0.456000 123.000000
> 
> $ uname -a | sed "s/${HOSTNAME}/\${HOSTNAME}/g"
> CYGWIN_NT-10.0 ${HOSTNAME} 3.1.4(0.340/5/3) 2020-02-19 08:49 x86_64 Cygwin
> 
> $ gcc --version
> gcc (GCC) 9.3.0
> Copyright (C) 2019 Free Software Foundation, Inc.
> This is free software; see the source for copying conditions.� There is NO
> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> 
> 
> 3.1.5 crashed the same way as 3.1.7.� There's nothing obvious in the
> 3.1.5 announcement [1],
> so I'm stuck again.

OK, so the problem was introduced between 3.1.4 and 3.1.5.  It should be pretty 
easy to bisect and find the culprit.  I'll do that tomorrow if no one beats me 
to it.

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