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Message-ID: <48CA555A.4050104@gmail.com>
Date: Fri, 12 Sep 2008 07:41:14 -0400
From: Barry Andrews <titanandrews@gmail.com>
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To: Daniel Eischen <deischen@freebsd.org>
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Cc: freebsd-hackers@freebsd.org
Subject: Re: loading multi threaded library into executable enabled for
 single thread
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Do you know if this is documented in Release Notes or Known Issues or 
somewhere?

thanks,

B


Daniel Eischen wrote:
> On Thu, 11 Sep 2008, Barry Andrews wrote:
>
>> Hi All,
>>
>> I have a multi-threaded library that is linked against libpthread. 
>> When I
>> load this lib into a tclsh process on FreeBSD, I get this error, 
>> "Recurse on
>> private mutex". and crash. I understand that I can have this issue 
>> when the
>> executable is not linked against libpthread but one of the loaded 
>> libs is.
>> Basically, it thinks it's in single threaded mode.
>
> This must be an older version of FreeBSD.  I think you must
> link your application (tclsh or whatever) against libpthread
> in order for this to work.  The libc functions won't get properly
> overloaded by their equivalents in libpthread unless you do
> this.
>