Date: Sun, 15 Aug 2004 10:03:05 -0400 (EDT) From: Daniel Eischen <deischen@freebsd.org> To: Doug Rabson <dfr@nlsystems.com> Cc: freebsd-current@freebsd.org Subject: Re: New nvidia drivers available Message-ID: <Pine.GSO.4.43.0408151001050.15254-100000@sea.ntplx.net> In-Reply-To: <200408151458.38437.dfr@nlsystems.com>
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On Sun, 15 Aug 2004, Doug Rabson wrote:
> On Sunday 15 August 2004 14:47, Daniel Eischen wrote:
> > On Sun, 15 Aug 2004, Doug Rabson wrote:
> > > > Same error message here when starting neverball. If I map
> > > > libpthread->libc_r it's working again.
> > > >
> > > > xawtv also stopped working. Fortunately setting -xvport manually
> > > > did fix that.
> > >
> > > This might be because libGL calls libpthread's version of open()
> > > before libpthread has initialised properly. This patch might fix it
> > > - it fixes neverball's map compiler for me but I haven't actually
> > > run neverball itself.
> > >
> > > Index: thr_open.c
> > > ===================================================================
> > > RCS file: /home/ncvs/src/lib/libpthread/thread/thr_open.c,v
> > > retrieving revision 1.16
> > > diff -u -r1.16 thr_open.c
> > > --- thr_open.c 9 Dec 2003 02:20:56 -0000 1.16
> > > +++ thr_open.c 15 Aug 2004 09:19:42 -0000
> > > @@ -45,11 +45,15 @@
> > > int
> > > __open(const char *path, int flags,...)
> > > {
> > > - struct pthread *curthread = _get_curthread();
> > > + struct pthread *curthread;
> > > int ret;
> > > int mode = 0;
> > > va_list ap;
> > >
> > > + if (_thr_initial == NULL)
> > > + _libpthread_init(NULL);
> > > +
> > > + curthread = _get_curthread();
> >
> > I thought the C++ style constructor in thr_autoinit.c is supposed
> > to take care of things like this?
>
> The problem is that there is no particular ordering for constructors. In
> the case with neverball, the C++ constructor in libGL which initialises
> OpenGL ran first and quite reasonably tried to call open(2). This was
> intercepted by libpthread, which hadn't yet had its constructor called.
Is there something else we can do so that libpthread gets
initialized first? Use _init()? I'm not sure how to
not add that when building static libpthread though (let's
kill static libpthread!).
--
Dan Eischen
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