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From: Bart Veer <bartv@ecoscentric.com>
To: Uwe Kindler <uwe_kindler@web.de>
Cc: ecos-devel@sourceware.org, jifl@jifvik.org
Subject: Re: Strange __cxa_pure_virtual problem
Date: Wed, 12 Aug 2009 19:07:00 -0000	[thread overview]
Message-ID: <pn4osc6ecb.fsf@delenn.bartv.net> (raw)
In-Reply-To: <4A830092.7050206@web.de> (message from Uwe Kindler on Wed, 12 	Aug 2009 19:49:06 +0200)

>>>>> "Uwe" == Uwe Kindler <uwe_kindler@web.de> writes:

    Uwe> Hello Jonathan,
    Uwe> thank you for your detailed description - it helped me to find the 
    Uwe> cause. In ustlecos.cpp there is a function:

    Uwe> void diag_print_exception(const exception& ex)
    Uwe> {
    Uwe>          static string exstr(64);
    Uwe> ...

    Uwe> if I remove the static from the string declaration the 
    Uwe> __cxa_pure_virtual problem is gone.

What happens if you then try to link a trivial eCos application which
declares a static string object? I suspect that is going to pull in
__cxa_guard_release() again, which will take its __cxa_pure_virtual()
from libsup++.a instead of libtarget.a. So deleting the static from
the declaration is only moving the problem, not solving it.

Bart

-- 
Bart Veer                                   eCos Configuration Architect
eCosCentric Limited    The eCos experts      http://www.ecoscentric.com/
Barnwell House, Barnwell Drive, Cambridge, UK.      Tel: +44 1223 245571
Registered in England and Wales: Reg No 4422071.

  reply	other threads:[~2009-08-12 19:07 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-08-12 17:49 Uwe Kindler
2009-08-12 19:07 ` Bart Veer [this message]
2009-08-13  8:00   ` Uwe Kindler
2009-08-19 10:37     ` Bart Veer
  -- strict thread matches above, loose matches on Subject: below --
2009-08-19 14:35 cetoni GmbH - Uwe Kindler
2009-08-19 16:05 ` John Dallaway
2009-08-21 14:55 ` Bart Veer
     [not found] <4A827EDC.3030004@cetoni.de>
2009-08-12 14:15 ` Jonathan Larmour
2009-08-12  9:10 cetoni GmbH - Uwe Kindler
2009-08-08  6:04 Uwe Kindler
2009-08-07 11:35 cetoni GmbH - Uwe Kindler
2009-08-07 12:04 ` John Dallaway
2009-08-07 13:40   ` Bart Veer
2009-08-07 15:08     ` John Dallaway
2009-08-07 15:42       ` Bart Veer
2009-08-11  9:05       ` Daniel Néri
2009-08-07 16:31     ` Sergei Gavrikov
2009-08-12  1:34     ` Jonathan Larmour
2009-08-05 18:55 Uwe Kindler
2009-08-07  9:35 ` John Dallaway

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