X-Recipient: archive-cygwin AT delorie DOT com
X-SWARE-Spam-Status: No, hits=-2.5 required=5.0 	tests=AWL,BAYES_00,SPF_PASS
X-Spam-Check-By: sourceware.org
Message-ID: <4B1EB003.6080305@gmail.com>
Date: Tue, 08 Dec 2009 19:58:59 +0000
From: Dave Korn <dave DOT korn DOT cygwin AT googlemail DOT com>
User-Agent: Thunderbird 2.0.0.17 (Windows/20080914)
MIME-Version: 1.0
To: cygwin AT cygwin DOT com
Subject: Re: [1.7] Possible dynamic linker error
References: <4B1E8AD4 DOT 9060607 AT fnal DOT gov>
In-Reply-To: <4B1E8AD4.9060607@fnal.gov>
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
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

Charles Plager wrote:

> libraries were compiled by me on the same machine using gcc4.3.4).  When
> looking at the problem using GDB, it says it is now going to jump to
> subroutine A (finishConstruction()), but instead jumps to subroutine B
> (edm::ValueMap<double>::operator+=).

  This could be just the ordinary sort of thing that goes on when you compile
with optimisation (and hence inlining) turned on.  It looks from the earlier
lines like it's just constructed a std::map as part of the PluginFactory or
PluginFactoryBase constructors, so if that edm::ValueMap is a derivation of
std::map it might well be that finishConstruction() is correctly invoking the
+= operator to append an item, and gdb is showing you the source of the
inlined operator function.

  So I think first thing you need to do is figure out if maybe it's actually
going the right code path, and has gotten something wrong with the value of j.
 Check the value of $eip before and after that final step command and find out
exactly where you're running.

    cheers,
      DaveK

--
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