linux-kernel - Re: [PATCH] also discard .*init sections after module initialization

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Message-Id: <200907011452.26720.rusty@rustcorp.com.au>
Date:	Wed, 1 Jul 2009 14:52:26 +0930
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	"Jan Beulich" <JBeulich@...ell.com>
Cc:	sam@...nborg.org, tony.luck@...el.com,
	"Benjamin Herrenschmidt" <benh@...nel.crashing.org>,
	"Paul Mackerras" <paulus@...ba.org>, linux-kernel@...r.kernel.org,
	Tim Abbott <tabbott@....edu>
Subject: Re: [PATCH] also discard .*init sections after module initialization

On Tue, 30 Jun 2009 09:27:26 pm Jan Beulich wrote:
> Just like .init, these sections are supposed to be unneeded after init,
> and modpost warns about improper section references anyway.

Tim Abbot had a section renaming patch, for -ffunction-sections.  Can we kill 
two birds with one stone and have a unique string for init sections, and 
another for exit sections?

> Likewise
> for .*exit which, other than .exit, aren't needed for the module unload
> path.

Currently true, but I can't see that being true in general.

If we're going to abstract init detection, it would be good to wrap init 
section renaming (for powerpc64 at least) too.

Thanks,
Rusty.
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