Re: RFC: Symbol versioning for libc

From: Hajimu UMEMOTO <ume_at_freebsd.org>
Date: Sat, 11 Mar 2006 03:59:07 +0900
Hi,

>>>>> On Tue, 7 Mar 2006 22:19:22 -0500 (EST)
>>>>> Daniel Eischen <eischen_at_vigrid.com> said:

eischen> I've been working on symbol versioning libc and have a patch
eischen> that seems to work.  It's been tested on x86 with build &
eischen> install world, KDE, mozilla, and firefox, but there may be
eischen> some problems I haven't found yet.  These would likely result
eischen> in undefined symbol errors from libraries or applications.

eischen> I'd like to commit what I have to enable wider testing, but
eischen> turn off symbol versioning by default.  I would also like
eischen> re_at_ to take a look at the version namespace scheme.  The
eischen> following was derived from Sun's convention.

I'm working on upgrading the base version of our resolver in libc to
BIND8's one.  We'll have more functions than existing our resolver.
Though it will rename/remove some functions, we'll have compatibility
syms for such functions and symbols to provide binary backward
compatibility.  So, it could be MFC'ed.  I think that such
compatibility syms can be removed safely using your symbol versioning
stuff once your stuff is activated.
Which timing is better to be done my work before your commit or
after?

Sincerely,

--
Hajimu UMEMOTO _at_ Internet Mutual Aid Society Yokohama, Japan
ume_at_mahoroba.org  ume_at_{,jp.}FreeBSD.org
http://www.imasy.org/~ume/
Received on Sat Mar 11 2006 - 01:04:39 UTC

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