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Date: Thu, 4 Jul 2013 09:08:18 +0800
From: Kevin Hao <haokexin@gmail.com>
To: Scott Wood <scottwood@freescale.com>
Subject: Re: [PATCH 1/2] powerpc: enable the relocatable support for the fsl
 booke 32bit kernel
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On Wed, Jul 03, 2013 at 03:38:27PM -0500, Scott Wood wrote:
> On 07/02/2013 10:00:44 PM, Kevin Hao wrote:
> >On Tue, Jul 02, 2013 at 05:39:18PM -0500, Scott Wood wrote:
> >> How much overhead (space and time) is this really?
> >
> >The following is the additional sections when relocatable is
> >enabled for
> >a p2020rdb board.
> >   section        size
> >  .dynsym       000007f0
> >  .dynstr       00000926
> >  .dynamic      00000080
> >  .hash         00000388
> >  .interp       00000011
> >  .rela.dyn     00215250
> >
> >The time for the relocation is about 32ms on a p2020rdb board.
>=20
> Hmm... more relocations than I expected.  What percentage is this of
> the total image size?

The size of vmlinux.bin is about 10M. The percentage of the relocation
section is about 20%. But look on the bright side of thing, all the relocat=
ion
stuff are in init section and should be discarded at runtime. :-)

Thanks,
Kevin

>=20
> -Scott

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