Date: Tue, 29 Oct 2002 05:46:06 -0800 (PST) From: John Polstra <jdp@polstra.com> To: current@freebsd.org Cc: dfr@nlsystems.com Subject: Re: gnome on current Message-ID: <200210291346.g9TDk6tp049754@vashon.polstra.com> In-Reply-To: <20021029121706.L97929-100000@herring.nlsystems.com> References: <20021029121706.L97929-100000@herring.nlsystems.com>
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In article <20021029121706.L97929-100000@herring.nlsystems.com>, Doug Rabson <dfr@nlsystems.com> wrote: > I just spent a few hours trying to get gnome working on one of my systems, > since kde still appears to be completely hosed. Unfortunately, not much of > it worked reliably. In particular, all the sawfish preferences applets > crash instantly. > > On investigating one of the crashes more carefully, I discovered that all > calls to pthread_*() were being resolved to stubs in libXThrStub.so in > spite of the fact that libc_r was also loaded. This caused problems for > e.g. flockfile which failed to initialise its mutex (uthread_mutex.c's > init_static calls pthread_mutex_init instead of _pthread_mutex_init and > ends up in libXThrStub). After working around that, I had more fun where > one of the gnome libs tried to call pthread_getspecific(). > > Why isn't the linker resolving these symbols against the ones in libc_r? > For some reason, libc_r defines them weakly so they get resolved by the > first weak definition in the list of libs, which in this case is > libXThrStub :-( When a symbol is defined in multiple libraries, the first library wins. That's how it has always been in Unix, for archive libraries and for shared libraries. John -- John Polstra John D. Polstra & Co., Inc. Seattle, Washington USA "Disappointment is a good sign of basic intelligence." -- Chögyam Trungpa To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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