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To: Dmitry Pryanishnikov <dmitry@atlantis.dp.ua>
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	<20061208135634.Q7518@atlantis.atlantis.dp.ua>
From: Lowell Gilbert <freebsd-stable-local@be-well.ilk.org>
Date: Fri, 08 Dec 2006 09:11:03 -0500
In-Reply-To: <20061208135634.Q7518@atlantis.atlantis.dp.ua> (Dmitry
	Pryanishnikov's message of "Fri, 8 Dec 2006 13:59:53 +0200 (EET)")
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Cc: freebsd-stable@freebsd.org
Subject: Re: Browser plugin problems still exist in 6.2
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Dmitry Pryanishnikov <dmitry@atlantis.dp.ua> writes:

> Hello!
>
> On Thu, 7 Dec 2006, Bruce M Simpson wrote:
>> It still seems to be necessary to patch rtld in order to get the
>> Flash plugin to work (www/linux-flashplugin7) due to the '_dlsym'
>> symbol not being found.
>>
>> I was able to use a smaller patch to do this, see attached (although
>> this may not build with the Intel C compiler).
>> +__strong_reference(dlsym, _dlsym);
>
>   I wonder what's the difference between your one-line patch and one which
> I'm using:
>
> +__weak_reference(dlsym, _dlsym);
>
> Which of them is more correct?

The difference between the two is just that a weak reference can be
overridden by code that links into the library.  In this case, we know
that the outside code (the nvidia driver) doesn't define that symbol
at all -- therefore, there is no practical difference between the two.

When in doubt, I always use a weak symbol.