Re: libpthread shared library version number

From: Wesley Morgan <morganw_at_chemikals.org>
Date: Thu, 2 Nov 2006 14:03:39 -0500 (EST)
On Thu, 2 Nov 2006, Daniel Eischen wrote:

> On Thu, 2 Nov 2006, Wesley Morgan wrote:
>
>> On Thu, 2 Nov 2006, Daniel Eischen wrote:
>> 
>>> If you are using libthr or libc_r with symbol versioning, then
>>> I don't think it will work correctly without rebuilding world
>>> and all ports.  As an interim solution for testing symbol versioning
>>> without require rebuilding everything under the sun, I added
>>> compatability hacks for symbols in libc that also exist in
>>> libpthread.  See lines 62-95 in src/lib/libpthread/thr/thr_private.h.
>>> This hack should be disabled and removed after bumping shared
>>> libraries and enabling symbol versioning.
>> 
>> My original report was here:
>> 
>> http://docs.freebsd.org/cgi/getmsg.cgi?fetch=353076+0+archive/2006/freebsd-current/20060806.freebsd-current
>> 
>> I swapped a few e-mails with Maxime Henrion, but the gist of things was 
>> that after enabling symbol versioning, I immediately rebuilt everything -- 
>> world, ports, kernel. The random crashes I experienced were most apparent 
>> with two applications, csup and games/uqm from ports. Xorg would also crash 
>> every now and then... An example of what gdb showed me is:
>
> Well, libthr obviously wouldn't have worked.  I have multiple systems
> running with symbol versioning, all have Xorg & KDE, and haven't had
> any problems.  I don't use csup or uqm.
>
> You're not running with any patches to rtld (to get Flash to work)
> are you?

Nope. You might be able to reproduce it with csup by simply rm'ing 
something from a tree and updating. I went through just about every 
iteration I could think of at the time, with no success.


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Received on Thu Nov 02 2006 - 18:03:57 UTC

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