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Date: Sat, 2 Feb 2002 03:08:47 -0500
From: Jeff Garzik <garzik@havoc.gtf.org>
To: Chris Wedgwood <cw@f00f.org>, Andrew Morton <akpm@zip.com.au>,
        Alan Cox <alan@lxorguk.ukuu.org.uk>,
        "David S. Miller" <davem@redhat.com>, vandrove@vc.cvut.cz,
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Subject: Re: [PATCH] Re: crc32 and lib.a (was Re: [PATCH] nbd in 2.5.3 does
Message-ID: <20020202030847.D20865@havoc.gtf.org>
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In-Reply-To: <20020202024236.B17031@nevyn.them.org>; from dan@debian.org on Sat, Feb 02, 2002 at 02:42:36AM -0500
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On Sat, Feb 02, 2002 at 02:42:36AM -0500, Daniel Jacobowitz wrote:
> One piece of the necessary compiler help would be -ffunction-sections. 
> If they are in the same section in the same object file, they simply
> can not be removed safely.

Such as the patch that was mentioned earlier in this thread :)


> Relocation information for calls to local
> functions is not reliably available at link time.

With a smarter toolchain it could be.

One will need a smarter toolchain in order to re-order functions
anyway, which is an area where benchmarks on other compilers are
showing benefits.  (ie. moving "cold" functions to the end of the
module, given profiling feedback)

	Jeff



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