Date: Wed, 18 Sep 2013 17:39:46 +0100 From: David Chisnall <theraven@FreeBSD.org> To: Tijl Coosemans <tijl@FreeBSD.org> Cc: Baptiste Daroussin <bapt@FreeBSD.org>, Shawn Webb <lattera@gmail.com>, "S.N.Grigoriev" <serguey-grigoriev@yandex.ru>, FreeBSD-current <freebsd-current@FreeBSD.org>, "O. Hartmann" <ohartman@zedat.fu-berlin.de>, Jung-uk Kim <jkim@FreeBSD.org> Subject: Re: libreoffice build error Message-ID: <95159E17-E700-464F-BBEE-C7C97355B8EB@FreeBSD.org> In-Reply-To: <20130918172615.42270918@kalimero.tijl.coosemans.org> References: <104781379415439@web14h.yandex.ru> <20130917162045.5b0fc356@thor.walstatt.dyndns.org> <20130917154914.GD31894@ithaqua.etoilebsd.net> <CADt0fhywbyC9y4MGTZ0gkRgFTLRT0MtEyP3_eHVgqF_uMXH2tQ@mail.gmail.com> <20130917155245.GE31894@ithaqua.etoilebsd.net> <52389059.8000200@FreeBSD.org> <5238FC0E.9090004@FreeBSD.org> <20130918172615.42270918@kalimero.tijl.coosemans.org>
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On 18 Sep 2013, at 16:26, Tijl Coosemans <tijl@freebsd.org> wrote: > On Tue, 17 Sep 2013 21:04:14 -0400 Jung-uk Kim wrote: >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA1 >>=20 >> On 2013-09-17 13:24:41 -0400, Jung-uk Kim wrote: >>> I am still working on libc++ issues but it is much more >>> complicated. :-( >>=20 >> I fixed almost everything except for exception handling issues. >> Unfortunately, libc++/libcxxrt's exception handling is not 100% >> compatible with libstdc++'s and I couldn't find a proper fix. :-( >>=20 >> Basically, C++/UNO bridge for LibreOffice/OpenOffice does some clever >> hacks, somewhat similar to the example on this blog page: >>=20 >> http://zbigg.blogspot.com/2009/03/catch-on-g.html >=20 > The definition of struct __cxa_exception doesn't match the one in > /usr/include/c++/v1/cxxabi.h. There's an extra field at the start > in the __LP64__ case: uintptr_t referenceCount. This field is present in newer versions of the ABI spec and is also = there in new versions of libsupc++. It's required for implementing = C++11 dependent exceptions. It shouldn't matter for code that doesn't allocate the structure (and = nothing outside of libsupc++ / libcxxrt should be allocating them), = because these structures are always passed around by pointers to their = ends (where the _Unwind_Exception structure lives). David=
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