X-Recipient: archive-cygwin AT delorie DOT com DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 65AC13861036 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com; s=default; t=1605332324; bh=gQP+vzUQMCNU5JJkXkDQ1YfchRYAsT41pttk3HJoMsw=; h=Date:To:Subject:In-Reply-To:References:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To: From; b=CL43lJTSbUYYyaMuOJspOwtAAsTPl59jpKwdjkffUdSlhC3w/w3tGr+EcjO0J1b/Z sr4Rl7bRwnUxj8YOcCeR67kGZilVXgnb8TqJIkF9EAN8Jp1m+TFye3IT+LSVt53ctf Bi1VCstwA8YaR23iTSx9RTXyxLZNLrgaF0wK31XQ= X-Original-To: cygwin AT cygwin DOT com Delivered-To: cygwin AT cygwin DOT com DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 3FB853858001 X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:subject:in-reply-to:references :message-id:mime-version:content-transfer-encoding; bh=dibMcokSi/IO6bByirjNy9YklJ8dFTQZQtgujXTymmA=; b=Ht74pbYIV0DRn0EXNoIh7E90ci64eRM2fxI19sscF54HBI5xDXqKpRdbADUL+t5ToN 5+uDO/cYAcnMAqlQr49LebcpIWN/MgN1AgKiVqf0ggjaVD4hGVqh0rlBU90sJBWSks6R 3tUOCFnT9VlesvnmjPicda167hJhmNPlXwsoOpjPsIev2lxRSdoukqfsfTE9PqkosDdZ bLPf6BLHGOjR8YO95BGWKN5WaomK6UR+TspAQ9e8fpFiJvR+/HmPEJbYmFhXD0tMy92X kcDu81zKxXKHQDAqosaKIcQnoY8L7jdBw2nDA/O7M/XSO86Zgy8UJ2apMKaE7UTQXfPB ytbQ== X-Gm-Message-State: AOAM5320zI4UZfusSF9FHJXyTwjlxzrn8rM+r0DRfFH6qBSbZWyr5FXv ODoh+SkZQFI0yttO1fly5c5BW9mFghsREQ== X-Google-Smtp-Source: ABdhPJxBVNMv98rk1cbgdACYd35yaRWCteHkhTPqyck9xe/9EbsEfOsjvgbp4mu70f3ErHyoUb1TZw== X-Received: by 2002:a17:90a:8542:: with SMTP id a2mr6597913pjw.101.1605332319817; Fri, 13 Nov 2020 21:38:39 -0800 (PST) Date: Sat, 14 Nov 2020 14:37:47 +0900 To: cygwin AT cygwin DOT com Subject: Re: Failed assertion dialog box In-Reply-To: References: Message-Id: <20201114143744.92E5.50F79699@gmail.com> MIME-Version: 1.0 X-Mailer: Becky! ver. 2.75.01 [ja] X-Antivirus: Avast (VPS 201113-2, 2020/11/13), Outbound message X-Antivirus-Status: Clean X-Spam-Status: No, score=-0.3 required=5.0 tests=BAYES_00, BODY_8BITS, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Lemures Lemniscati via Cygwin Reply-To: Lemures Lemniscati Content-Type: text/plain; charset="utf-8" Errors-To: cygwin-bounces AT cygwin DOT com Sender: "Cygwin" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by delorie.com id 0AE5dAg1002219 On Sat, 14 Nov 2020 04:37:43 +0000, André Bleau via Cygwin > > On Fri, Nov 13, 2020 at 10:45 PM Duncan Roe > wrote: > > > Hi William, > > > > On Fri, Nov 13, 2020 at 12:27:57PM -0500, cygwin wrote: > > > I've run into a problem running a collection of tests under Cygwin and I > > > wonder if anyone can suggest a way around it. > > > > > > The problem occurs when a program being run fails a C/C++ runtime > > > assertion. Ordinarily, this just writes an error message on stderr and > > > aborts. Under Cygwin, however, if both stdin and stderr are redirected to > > > files, the program instead pops up a dialog box that must be > > interactively > > > dismissed before the failed program will exit - holding up all the tests > > > that follow it. > > > > > > Specifically, if I have the following as assert.cpp: > > > > > >     #include > > >     int main() { > > >       assert(false); > > >     } > > > > > > and say > > > > > >     gcc assert.cpp > > >     ./a.exe < /dev/null > output 2>&1 > > > > > > I get an error dialog box saying > > > > > >     Failed assertion > > >         false > > >     at line 3 of file assert.cpp > > >     in function int main() > > > > > > If I omit either the stdin or the stderr redirection, the program behaves > > > as desired with no dialog box. > > > > > > Is there an environment setting or compiler command-line option I can > > give > > > to suppress the dialog box and always just write a message to stderr and > > > abort? Thanks for any insights. > > > > Your example WFFM, (Cygwin64, gcc 10.2.0, everything else also up to date). > > > > Do you still see this behaviour if you run the installer? > > > > Thanks for your reply; unfortunately, yes, it does. I had refreshed > the installation fairly recently, and running the installer only updated a > few things, not cygwin.dll and not gcc; my installation is the same as > yours. I've tried it with three different shells (tcsh, bash, mksh) and > with both gcc and clang, and all have the same behavior. (Interestingly, if > I compile the example with MSVC and run it in a Cygwin shell, it does _not_ > pop up an error dialog box, so presumably it's in the Cygwin runtime, > specifically the definition of __assert_func.) > > -- > William M. (Mike) Miller | Edison Design Group > > > I see the same behavior as William: > > ./a.exe < /dev/null > output.txt 2>&1 > pops a message box. > > gcc (GCC) 10.2.0 > CYGWIN_NT-10.0 XXX 3.1.7(0.340/5/3) 2020-08-22 17:48 x86_64 Cygwin > mintty 3.4.1 (x86_64-pc-cygwin) > > - André Bleau It works fine for me. Can you check 'gcc -M assert.cpp' ? My result is: $ gcc -M assert.cpp assert.o: assert.cpp /usr/include/assert.h /usr/include/_ansi.h \ /usr/include/newlib.h /usr/include/_newlib_version.h \ /usr/include/sys/config.h /usr/include/machine/ieeefp.h \ /usr/include/sys/features.h /usr/include/cygwin/config.h Lem -- 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