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Re: [PATCH] fixes to consistency.vlad/vlad.exp
On Mon, Aug 26, 2002 at 01:53:06PM -0400, Phil Edwards wrote:
> On Mon, Aug 26, 2002 at 07:15:56AM -0700, Janis Johnson wrote:
> > On Fri, Aug 23, 2002 at 09:11:18PM -0400, Phil Edwards wrote:
> > > On Fri, Aug 23, 2002 at 05:25:50PM -0700, Janis Johnson wrote:
> > > > C++ tests were built
> > > > using "gcc -x c++", which caused failures for tests with vtables, so now
> > > > they are built with g++ instead.
> > >
> > > That seems worrying.
> >
> > Tests class-*-and-virtual.cpp in consistency.vlad/layout all fail when
> > built with "gcc -x c++" rather than with "g++".
> >
> > When built with gcc:
> >
> > /tmp/ccGpUaWO.o(.gnu.linkonce.d._ZTI3sss+0x0): undefined reference to
> > `vtable for __cxxabiv1::__class_type_info'
> >
> > When built with g++:
> >
> > laptop% nm a.out | fgrep class_type_info
> > U _ZTVN10__cxxabiv117__class_type_infoE
> > laptop% nm libstdc++.so | fgrep _ZTVN10__cxxabiv117__class_type_infoE
> > 0005fea0 W _ZTVN10__cxxabiv117__class_type_infoE
>
> Ah, okay. I thought you meant "vtables in general," not "vtables from
> the support section of the standard library." This makes sense.
>
>
> > We apparently need a set of tests that check that basic C++ runtime
> > support is available outside of libstdc++.
>
> Either that, and link against libsupc++, or move these tests into the
> library's testsuite. Hmmmm, but that makes consistency.vlad more complex.
I wonder - should "gcc -x c++" use "-lsupc++" the way that a plain
"g++" would?
--
Daniel Jacobowitz
MontaVista Software Debian GNU/Linux Developer