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From: Geoffrey Keating <geoffk@apple.com>
To: "H. J. Lu" <hjl@lucon.org>
Cc: binutils@sources.redhat.com, gcc@gcc.gnu.org
Subject: Re: ld -shared -Bsymbolic and C++ shared library
Date: Thu, 27 Jul 2006 22:37:00 -0000	[thread overview]
Message-ID: <m2hd12k72q.fsf@greed.local> (raw)
In-Reply-To: <20060716172604.GB29871@lucon.org>

"H. J. Lu" <hjl@lucon.org> writes:

> ld -shared -Bsymbolic will reduce number of dynamic relocations in
> a shared library. Unfortunately, it won't work correctly with C++
> exception and maybe other language features.
> 
> However, I think it is possible to make -shared -Bsymbolic to work
> for C++ by providing a way to specify a list of symbols which must
> be dynamic. We then can do
> 
> # g++ -Wl,-Bsymbolic -shared -xxx "list of dynamic symbols" -o libfoo.so ...
> 
> and libfoo.so written in C++ will work correctly with much fewer dynamic
> relocations.

You may find this would be easier to use if you just had a flag which
made -Bsymbolic apply only to non-weak symbols.

  reply	other threads:[~2006-07-27 22:37 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-07-16 17:26 H. J. Lu
2006-07-27 22:37 ` Geoffrey Keating [this message]
2006-07-28  1:21   ` H. J. Lu

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