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From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
To: Sascha Hauer <s.hauer@pengutronix.de>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH 2/3] Add DMO RealQ7 board support
Date: Fri, 8 Mar 2013 16:46:11 +0100	[thread overview]
Message-ID: <20130308154611.GG32347@game.jcrosoft.org> (raw)
In-Reply-To: <20130308150609.GG1906@pengutronix.de>

On 16:06 Fri 08 Mar     , Sascha Hauer wrote:
> On Fri, Mar 08, 2013 at 03:48:43PM +0100, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > > > > +	.boot_data.size		= 192 * 1024,
> > > > barebox_image_size
> > > 
> > > ok. This btw will not work with CONFIG_RELOCATABLE as is since the
> > > linker cannot generate this value then.
> > why?
> 
> Absolute values will be zero when you link with -pie. They get fixed
> during relocation.
> 
> The image size is a relative value, when doing a
> 
> 	.word __barebox_image_end - start
> 
> in assembly it works correctly, but doing the same in C does not work.
> 
> > 
> > otherwise we need to update it via ld as done in the kernel as example
> 
> Can you give me a pointer what the kernel does?

we create the symbol at compilation
via --defsym

arch/arm/boot/compressed/Makefile

Best Regards,
J.
> 
> Sascha
> 
> -- 
> Pengutronix e.K.                           |                             |
> Industrial Linux Solutions                 | http://www.pengutronix.de/  |
> Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
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  reply	other threads:[~2013-03-08 15:50 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-03-08 12:08 [PATCH] Add DataModul Realq7 " Sascha Hauer
2013-03-08 12:08 ` [PATCH 1/3] ARM i.MX6: Add mmdc calibration support Sascha Hauer
2013-03-08 12:17   ` Alexander Shiyan
2013-03-08 14:00     ` Sascha Hauer
2013-03-08 12:46   ` Jean-Christophe PLAGNIOL-VILLARD
2013-03-08 12:08 ` [PATCH 2/3] Add DMO RealQ7 board support Sascha Hauer
2013-03-08 12:51   ` Jean-Christophe PLAGNIOL-VILLARD
2013-03-08 13:07     ` Sascha Hauer
2013-03-08 14:48       ` Jean-Christophe PLAGNIOL-VILLARD
2013-03-08 15:06         ` Sascha Hauer
2013-03-08 15:46           ` Jean-Christophe PLAGNIOL-VILLARD [this message]
2013-03-08 16:23             ` Jean-Christophe PLAGNIOL-VILLARD
2013-03-09 19:03             ` Sascha Hauer
2013-03-08 12:08 ` [PATCH 3/3] Add DMO RealQ7 defconfig Sascha Hauer

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