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:mime-version:from:date:message-id:subject:to
	:cc:content-type; q=dns; s=default; b=Y2b5PyZONTcPQ5DZWxJm1xEiVk
	QI+fzPQQH8MNM6eNoT5Ne9vDpRmeeFWYztAArAOBM9uysTG6YI/P3ipF5vDTMaW8
	z0RFH7OERvu3xvvma0WjOq0RYa5DAs0nFEbdOMayVgbalZFEc5YPye3kPS6MdYsY
	NcYYeOpYvwfDXjig4=
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:mime-version:from:date:message-id:subject:to
	:cc:content-type; s=default; bh=Fyedjv3y6e4Lhj1sVM9+D8R7rM0=; b=
	rdloSdi9hZJvqUBttmSHTQ48WII1xP6sPwS5a3otO2+lXwVZPli2HErcjOjOUFPg
	sWLARt/A3O9hb4Kj4XEKiciPKYeKTNYlxZSLPzLulMFnlYRbS7ZHXEnLIdf/OZXS
	Zflt78x4jsPFbQi9ZGyarp8evaPW2I0kdce6lxZ6nwY=
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id: <cygwin.cygwin.com>
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
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=-0.4 required=5.0 tests=AWL,BAYES_00,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_PASS autolearn=ham version=3.3.2
X-HELO: mail-qg0-f46.google.com
X-Received: by 10.140.21.8 with SMTP id 8mr18903736qgk.55.1396390052263; Tue, 01 Apr 2014 15:07:32 -0700 (PDT)
MIME-Version: 1.0
From: Jean-Pierre Flori <jpflori AT gmail DOT com>
Date: Wed, 2 Apr 2014 00:07:12 +0200
Message-ID: <CAHhGz8_eESbCpCWivD_G9ciFbE4VsZntZyRdOOOtd2PXUSsmgg@mail.gmail.com>
Subject: Possibly wrong address passed to callq asm instruction within MPIR test binaries
To: cygwin AT cygwin DOT com
Cc: Bill Hart <goodwillhart AT googlemail DOT com>
Content-Type: text/plain; charset=UTF-8

Dear all,

It's amazing to see how well Cygwin64 is going.
Thanks for your hard work.

While preparing the new MPIR release, which will be the first one to
support Cygwin4, we encountered problems running MPIR testsuite when
MPIR was configured to produce a shared lib.
That's with latest cygwin/binutils/gcc/g++ from today.

It seems that a call to the MPN_ZERO macro, which on my setup is at
0x4ff2746c0 in the shared lib but we get the instruction:
callq 0xff2746c0
within the test binary and that yields a nice segfault.
Please see https://groups.google.com/d/msg/mpir-devel/KzsxIWhVx8A/EAUoP4ybWOMJ
and the few following post for more details.

For sure, we don't get what's going on here.
Would you have any clue?
Might ld decide for some reason to trim the macro address to 4 bytes
rather than 8?

Best,

-- 
Jean-Pierre Flori

--
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