[C++-sig] help finding solution to lack of exception handling with boost python on open solaris 64 bit
Niall Douglas
s_sourceforge at nedprod.com
Fri Dec 3 14:51:01 CET 2010
Have you checked to ensure your applications meet the criteria
specified in http://www.nedprod.com/programs/gccvisibility.html?
Usually this problem is due to a failure to fully implement this. Or
it's a bug in GCC :)
Niall
On 2 Dec 2010 at 18:05, Charles Solar wrote:
> This happens in my application as well, dont know if its a known issue for
> boost python or not..
> I too would like to see a solution; I myself have not had anytime to look
> into it since exceptions are a rare thing in my app.
> I can confirm however that a similar problem occurs on Solaris Sparcv9
> machines, so I am guessing it has something to do with how solaris handles
> 64 bit exception handling. Something boost is not setup to handle I would
> suppose.
>
> Charles
>
> On Thu, Dec 2, 2010 at 4:23 PM, Dane Springmeyer <blake at hailmail.net> wrote:
>
> > Hello,
> >
> > I recently recompiled my C++ app (mapnik.org, which uses boost python for
> > python binding) with -m64 flags for 64 bit operation and this broke the
> > boost python exception handling.
> >
> > Instead of C++ exceptions being propagated to python exceptions, I get
> > segmentation faults (core dump).
> >
> > I have a long dependency chain that all needs to be 64 bit, so I'm really
> > stuck unless I can find a way to restore boost python's ability to handle
> > exceptions without crashing.
> >
> > Exceptions are very common during setup of mapnik, and are needed to report
> > basic configuration issues as a user gets set up.
> >
> > I'm desperate to try anything that might help - anyone have any
> > suggestions?
> >
> > What i have tried so far:
> >
> > 1) recompiling all apps with -02 instead of -03
> > 2) making sure all apps are compiled with the exact same version of gcc (at
> > least all the C++ libraries I have compiled from source)
> > 3) ensured that all dynamic libraries link to the same libgcc_s.so.1 and
> > libstdc++.so.6.
> > 4) tried with both boost 1.44 and 1.45
> >
> > I'm out of ideas - anyone have suggestions to try?
> >
> > More info below.
> >
> > Dane
> >
> > --------------
> >
> > With 32bit boost, python, and mapnik, exceptions worked fine.
> >
> > This is on opensolaris:
> >
> > $ cat /etc/release
> > OpenSolaris Development snv_133 X86
> > Copyright 2010 Sun Microsystems, Inc. All Rights Reserved.
> > Use is subject to license terms.
> > Assembled 15 February 2010
> >
> > with the sun provided 64 bit python26:
> >
> > $ /usr/bin/amd64/python --version
> > Python 2.6.4
> >
> > Both boost and mapnik are compiled with a *custom* compiled gcc 44:
> >
> > $ /opt/ts/gcc/4.4/bin/g++ -v
> > Using built-in specs.
> > Target: i386-pc-solaris2.11
> > Configured with: .././configure --prefix=/opt/ts/gcc/4.4
> > --bindir=/opt/ts/gcc/4.4/bin --libdir=/opt/ts/gcc/4.4/lib
> > --mandir=/opt/ts/gcc/4.4/share/man --datadir=/opt/ts/gcc/4.4/share
> > --includedir=/opt/ts/gcc/4.4/include --infodir=/opt/ts/gcc/4.4/share/info
> > --libexecdir=/opt/ts/gcc/4.4/lib --sysconfdir=/etc/opt/ts --disable-nls
> > --disable-static --with-gnu-as --with-as=/usr/gnu/bin/as --without-gnu-ld
> > --with-ld=/usr/ccs/bin/ld --enable-threads=posix --enable-shared
> > --enable-multilib --enable-nls --without-x --with-system-zlib
> > --enable-languages=c,c++,f95,objc --with-mpfr=/opt/ts --with-gmp=/opt/ts
> > Thread model: posix
> > gcc version 4.4.4 (GCC)
> >
> > ( I was unable to get boost compiled with the gcc 3.4.3 or gcc 4.3.3
> > provided by sun packages, for more info see:
> > http://trac.mapnik.org/wiki/OpenSolarisInstallation/TroubleShooting)
> >
> >
> > So, instead of throwing an understandable exception, boost python crashes
> > and this is what a normal backtrace looks like in gbd:
> >
> > (gdb) bt
> > #0 0x000000000005f666 in ?? ()
> > #1 0xfffffd7fff2ec5d1 in _Unwind_RaiseException_Body () from
> > /usr/lib/amd64/libc.so.1
> > #2 0xfffffd7fff2ec855 in _Unwind_RaiseException () from
> > /usr/lib/amd64/libc.so.1
> > #3 0xfffffd7ffa98bb39 in __cxa_throw (obj=<value optimized out>,
> > tinfo=0x1, dest=0x474e5543432b2b00)
> > at ../../../../.././libstdc++-v3/libsupc++/eh_throw.cc:78
> > #4 0xfffffd7ff3aa2de2 in boost::python::throw_error_already_set () from
> > /usr/local/lib/libboost_python.so.1.44.0
> > #5 0xfffffd7ff3a9ae31 in boost::python::objects::function::argument_error
> > () from /usr/local/lib/libboost_python.so.1.44.0
> > #6 0xfffffd7ff3a9b4fb in boost::python::objects::function::call () from
> > /usr/local/lib/libboost_python.so.1.44.0
> > #7 0xfffffd7ff3a9b730 in
> > boost::detail::function::void_function_ref_invoker0<boost::python::objects::(anonymous
> > namespace)::bind_return, void>::invoke () from
> > /usr/local/lib/libboost_python.so.1.44.0
> > #8 0xfffffd7ff3aa3053 in
> > boost::python::detail::exception_handler::operator() () from
> > /usr/local/lib/libboost_python.so.1.44.0
> > #9 0xfffffd7ff28fb1b2 in
> > boost::detail::function::function_obj_invoker2<boost::_bi::bind_t<bool,
> > boost::python::detail::translate_exception<std::exception, void
> > (*)(std::exception const&)>, boost::_bi::list3<boost::arg<1>, boost::arg<2>,
> > boost::_bi::value<void (*)(std::exception const&)> > >, bool,
> > boost::python::detail::exception_handler const&, boost::function0<void>
> > const&>::invoke ()
> > from /usr/local/lib/python2.6/site-packages/mapnik/64/_mapnik.so
> > #10 0xfffffd7ff3aa2e25 in boost::python::handle_exception_impl () from
> > /usr/local/lib/libboost_python.so.1.44.0
> > #11 0xfffffd7ff3a97d50 in function_call () from
> > /usr/local/lib/libboost_python.so.1.44.0
> > #12 0xfffffd7ff6ff9aad in PyObject_Call () from
> > /usr/lib/amd64/libpython2.6.so.1.0
> > #13 0xfffffd7ff700af29 in instancemethod_call () from
> > /usr/lib/amd64/libpython2.6.so.1.0
> > #14 0xfffffd7ff6ff9aad in PyObject_Call () from
> > /usr/lib/amd64/libpython2.6.so.1.0
> > #15 0xfffffd7ff705d8a1 in slot_tp_init () from
> > /usr/lib/amd64/libpython2.6.so.1.0
> > #16 0xfffffd7ff7051c06 in type_call () from
> > /usr/lib/amd64/libpython2.6.so.1.0
> > #17 0xfffffd7ff6ff9aad in PyObject_Call () from
> > /usr/lib/amd64/libpython2.6.so.1.0
> > #18 0xfffffd7ff709c1c0 in do_call () from
> > /usr/lib/amd64/libpython2.6.so.1.0
> > #19 0xfffffd7ff709b672 in call_function () from
> > /usr/lib/amd64/libpython2.6.so.1.0
> > #20 0xfffffd7ff709810d in PyEval_EvalFrameExReal () from
> > /usr/lib/amd64/libpython2.6.so.1.0
> > #21 0xfffffd7ff7094d9d in PyEval_EvalFrameEx () from
> > /usr/lib/amd64/libpython2.6.so.1.0
> > #22 0xfffffd7ff709a27d in PyEval_EvalCodeEx () from
> > /usr/lib/amd64/libpython2.6.so.1.0
> > #23 0xfffffd7ff7094caa in PyEval_EvalCode () from
> > /usr/lib/amd64/libpython2.6.so.1.0
> > #24 0xfffffd7ff70bd385 in run_mod () from
> > /usr/lib/amd64/libpython2.6.so.1.0
> > #25 0xfffffd7ff70bd27c in PyRun_StringFlags () from
> > /usr/lib/amd64/libpython2.6.so.1.0
> > #26 0xfffffd7ff70bc53d in PyRun_SimpleStringFlags () from
> > /usr/lib/amd64/libpython2.6.so.1.0
> > #27 0xfffffd7ff70ca5f0 in Py_Main () from
> > /usr/lib/amd64/libpython2.6.so.1.0
> > #28 0x0000000000400b3c in _start ()
> >
> >
> > Here is the output of ldd for both the main mapnik library and the mapnik
> > python bindings:
> >
> > $ ldd /usr/local/lib/libmapnik.so
> > libfreetype.so.6 => /usr/lib/64/libfreetype.so.6
> > libltdl.so.3 => /usr/lib/64/libltdl.so.3
> > libpng12.so.0 => /usr/lib/64/libpng12.so.0
> > libtiff.so.3 => /usr/lib/64/libtiff.so.3
> > libz.so.1 => /lib/64/libz.so.1
> > libjpeg.so.62 => /usr/lib/64/libjpeg.so.62
> > libproj.so.0 => /usr/local/lib/libproj.so.0
> > libicuuc.so.44 => /usr/local/lib/libicuuc.so.44
> > libicui18n.so.44 => /usr/local/lib/libicui18n.so.44
> > libboost_filesystem.so.1.44.0 =>
> > /usr/local/lib/libboost_filesystem.so.1.44.0
> > libboost_regex.so.1.44.0 =>
> > /usr/local/lib/libboost_regex.so.1.44.0
> > libxml2.so.2 => /lib/64/libxml2.so.2
> > libboost_thread.so.1.44.0 =>
> > /usr/local/lib/libboost_thread.so.1.44.0
> > libboost_system.so.1.44.0 =>
> > /usr/local/lib/libboost_system.so.1.44.0
> > libstdc++.so.6 => /opt/ts/gcc/4.4/lib/amd64/libstdc++.so.6
> > libm.so.2 => /lib/64/libm.so.2
> > libgcc_s.so.1 => /opt/ts/gcc/4.4/lib/amd64/libgcc_s.so.1
> > libc.so.1 => /lib/64/libc.so.1
> > libdl.so.1 => /lib/64/libdl.so.1
> > libicudata.so.44 => /usr/local/lib/libicudata.so.44
> > libpthread.so.1 => /lib/64/libpthread.so.1
> > librt.so.1 => /lib/64/librt.so.1
> > libsocket.so.1 => /lib/64/libsocket.so.1
> > libnsl.so.1 => /lib/64/libnsl.so.1
> > libmp.so.2 => /lib/64/libmp.so.2
> > libmd.so.1 => /lib/64/libmd.so.1
> > libscf.so.1 => /lib/64/libscf.so.1
> > libuutil.so.1 => /lib/64/libuutil.so.1
> > libgen.so.1 => /lib/64/libgen.so.1
> > libsmbios.so.1 => /usr/lib/64/libsmbios.so.1
> >
> > $ ldd /usr/local/lib/python2.6/site-packages/mapnik/64/_mapnik.so
> > libmapnik.so => /usr/local/lib/libmapnik.so
> > libpng12.so.0 => /usr/lib/64/libpng12.so.0
> > libjpeg.so.62 => /usr/lib/64/libjpeg.so.62
> > libboost_python.so.1.44.0 =>
> > /usr/local/lib/libboost_python.so.1.44.0
> > libstdc++.so.6 => /opt/ts/gcc/4.4/lib/amd64/libstdc++.so.6
> > libm.so.2 => /lib/64/libm.so.2
> > libgcc_s.so.1 => /opt/ts/gcc/4.4/lib/amd64/libgcc_s.so.1
> > libfreetype.so.6 => /usr/lib/64/libfreetype.so.6
> > libltdl.so.3 => /usr/lib/64/libltdl.so.3
> > libtiff.so.3 => /usr/lib/64/libtiff.so.3
> > libz.so.1 => /lib/64/libz.so.1
> > libproj.so.0 => /usr/local/lib/libproj.so.0
> > libicuuc.so.44 => /usr/local/lib/libicuuc.so.44
> > libicui18n.so.44 => /usr/local/lib/libicui18n.so.44
> > libboost_filesystem.so.1.44.0 =>
> > /usr/local/lib/libboost_filesystem.so.1.44.0
> > libboost_regex.so.1.44.0 =>
> > /usr/local/lib/libboost_regex.so.1.44.0
> > libxml2.so.2 => /lib/64/libxml2.so.2
> > libboost_thread.so.1.44.0 =>
> > /usr/local/lib/libboost_thread.so.1.44.0
> > libboost_system.so.1.44.0 =>
> > /usr/local/lib/libboost_system.so.1.44.0
> > libc.so.1 => /usr/lib/amd64/libc.so.1
> > librt.so.1 => /lib/64/librt.so.1
> > libdl.so.1 => /lib/64/libdl.so.1
> > libicudata.so.44 => /usr/local/lib/libicudata.so.44
> > libpthread.so.1 => /lib/64/libpthread.so.1
> > libsocket.so.1 => /lib/64/libsocket.so.1
> > libnsl.so.1 => /lib/64/libnsl.so.1
> > libmp.so.2 => /lib/64/libmp.so.2
> > libmd.so.1 => /lib/64/libmd.so.1
> > libscf.so.1 => /lib/64/libscf.so.1
> > libuutil.so.1 => /lib/64/libuutil.so.1
> > libgen.so.1 => /lib/64/libgen.so.1
> > libsmbios.so.1 => /usr/lib/64/libsmbios.so.1
> >
> > Here is a simple way to prompt a segfault:
> >
> > $ /usr/bin/amd64/python
> > Python 2.6.4 (r264:75706, Feb 14 2010, 14:06:28) [C] on sunos5
> > Type "help", "copyright", "credits" or "license" for more information.
> > >>> import mapnik
> > >>> m = mapnik.Map(256,256)
> > >>> m
> > <mapnik._mapnik.Map object at 0x55a1b0>
> > # then, prompt a boost python argument error
> > >>> m2 = mapnik.Map('foo')
> > Segmentation Fault
> >
> >
> >
> > _______________________________________________
> > Cplusplus-sig mailing list
> > Cplusplus-sig at python.org
> > http://mail.python.org/mailman/listinfo/cplusplus-sig
> >
>
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