X-Recipient: archive-cygwin AT delorie DOT com DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:date:message-id:from:reply-to:to:subject :references:in-reply-to:content-type; q=dns; s=default; b=Qxf0tA 3+6xgCx3UAxnd879fECO1yQQYCYfP27Bhc8AHm6BoZcUhYcUtR6ElvsrhpA86jrU HFoHlkcvni32tA+HbBQ0jv14mYBtj5fle7hbeJLXt/lhcfPC5tb2jkg8512k0Au3 4Tjwb6RDIAE2JAWsbyuWnOz5Ll7ORn3+GkhXc= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:date:message-id:from:reply-to:to:subject :references:in-reply-to:content-type; s=default; bh=FolzWMwgU3Ym FIbAkIWpk3qpCV8=; b=XSLnZ89E46zhlh5h+w9PE9P49+FU6iQPq27lPRNqCa0g q2DoPY8YDvfAuOBGxWEl9HSEkt4MGKjiBlCaYChV3Il+Kbdw85xfQuwUwukuEyTU wGRFsNowuOkFdB/1kzSi6Nk8kgii3s+m8Ng8lrlY0CXS0dJu6aPPqCEdnJX77lg= Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-2.1 required=5.0 tests=AWL,BAYES_00,KAM_NUMSUBJECT,RCVD_IN_DNSWL_LOW,SPF_PASS autolearn=ham version=3.3.2 spammy=Best X-HELO: lb3-smtp-cloud9.xs4all.net Date: Thu, 26 Apr 2018 14:58:38 +0200 Message-ID: <4c43d9608bc106299632d6063ed02891@smtp-cloud9.xs4all.net> From: Houder Reply-To: cygwin AT cygwin DOT com To: cygwin AT cygwin DOT com Subject: Re: Bug: Synchronous signals broken on Cygwin 64 References: <4a3b47db-fcdb-85f0-ec80-4cffcb7c495a AT users DOT sourceforge DOT net> <26e03635c83cba20a1ef68e238e41ec2 AT smtp-cloud9 DOT xs4all DOT net> <46f53185-1295-e1b8-0121-103f2b7c4f1f AT users DOT sourceforge DOT net> In-Reply-to: <46f53185-1295-e1b8-0121-103f2b7c4f1f@users.sourceforge.net> Content-Type: text/plain; charset=UTF-8; format=fixed User-Agent: mua.awk 0.99 X-CMAE-Envelope: MS4wfG4gTuPhFcLpd+zp/MGY4ZuwX9z9jop/1DqhlQFo4fj1vweVYgcDBsGgMIORTwDA+AcyKQTognJ6bmBaG/tirvQTZzq8dULPPGeZ/GXH9Inrtz18O64m GQjXhiT/H4REe7frIcM6oAEAWLswqUntLeyDca1P6zy1cI+17b4vRYbe6YdWCo8XMf1xII55/4ba4A== On Thu, 26 Apr 2018 13:12:53, Thomas Zimmermann wrote: > > > After the invocation of the handler, the program continues with the code > > > that attempts 'to divide by zero'. > > >=20 > > > As result of that, the handler is invoked again. > > > > This means that the behavior of the test case is incorrect when running > > in 32-bit mode. There, the signal-handler function runs exactly *once* > > and then the program terminates. > > > I just saw that the result after returning from a synchronous signal is > undefined. So any behavior seems be OK. I'd still encourage to unify the > behavior of 32-bit and 64-bit code. (See my other mail.) You are correct. For those who like a textbook reference, see: Chapter 22, section 4 (Hardware-Generated Signals) of The Linux Programming Interface by Michael Kerrisk. Henri > Best regards > Thomas -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple