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From: tony@atomide.com (Tony Lindgren)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: Make sure appended device tree data won't overlap kernel BSS
Date: Mon, 9 May 2011 17:49:50 +0300	[thread overview]
Message-ID: <20110509144949.GE30958@atomide.com> (raw)
In-Reply-To: <20110509111929.GA11410@atomide.com>

* Tony Lindgren <tony@atomide.com> [110509 14:16]:
> Do this before relocating the compressed kernel + device tree data.
> Otherwise we would have to split the copying into two parts, or copy
> the device tree data twice.
> 
> As we only have one register available, pass the size of kernel BSS
> via linker and do the following calculation using r1.

Blah, this still needs a bit more work.. The calculation is wrong
and we can get multiple relocations now.

Tony

WARNING: multiple messages have this Message-ID (diff)
From: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
To: Nicolas Pitre <nico-vtqb6HGKxmzR7s880joybQ@public.gmane.org>
Cc: Russell King - ARM Linux
	<linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>,
	devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
	glikely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: Re: [PATCH] ARM: Make sure appended device tree data won't overlap kernel BSS
Date: Mon, 9 May 2011 17:49:50 +0300	[thread overview]
Message-ID: <20110509144949.GE30958@atomide.com> (raw)
In-Reply-To: <20110509111929.GA11410-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>

* Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org> [110509 14:16]:
> Do this before relocating the compressed kernel + device tree data.
> Otherwise we would have to split the copying into two parts, or copy
> the device tree data twice.
> 
> As we only have one register available, pass the size of kernel BSS
> via linker and do the following calculation using r1.

Blah, this still needs a bit more work.. The calculation is wrong
and we can get multiple relocations now.

Tony

  reply	other threads:[~2011-05-09 14:49 UTC|newest]

Thread overview: 72+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-03-24 23:18 [PATCHv3] ARM:boot:device tree: Allow the device tree binary to be appended to zImage John Bonesio
2011-03-24 23:18 ` John Bonesio
2011-03-24 23:37 ` Nicolas Pitre
2011-03-24 23:37   ` Nicolas Pitre
2011-03-28  9:13 ` Shawn Guo
2011-03-28  9:13   ` Shawn Guo
2011-04-13 14:00   ` Tony Lindgren
2011-04-13 14:00     ` Tony Lindgren
2011-04-20  5:47     ` Shawn Guo
2011-04-20  5:47       ` Shawn Guo
2011-04-20  7:34       ` Shawn Guo
2011-04-20  7:34         ` Shawn Guo
2011-04-21  8:02         ` Tony Lindgren
2011-04-21  8:02           ` Tony Lindgren
2011-04-21 12:46           ` Tony Lindgren
2011-04-21 12:46             ` Tony Lindgren
2011-04-27 14:23             ` Tony Lindgren
2011-04-27 14:23               ` Tony Lindgren
2011-04-27 14:38               ` Tony Lindgren
2011-04-27 14:38                 ` Tony Lindgren
2011-04-27 14:40               ` Nicolas Pitre
2011-04-27 14:40                 ` Nicolas Pitre
2011-04-27 14:43                 ` Tony Lindgren
2011-04-27 14:43                   ` Tony Lindgren
2011-04-29 10:26                   ` Tony Lindgren
2011-04-29 10:26                     ` Tony Lindgren
2011-04-29 13:02                     ` Grant Likely
2011-04-29 13:02                       ` Grant Likely
2011-04-29 13:08                       ` Grant Likely
2011-04-29 13:08                         ` Grant Likely
2011-04-29 13:09                       ` Tony Lindgren
2011-04-29 13:09                         ` Tony Lindgren
2011-04-29 13:21                         ` Nicolas Pitre
2011-04-29 13:21                           ` Nicolas Pitre
2011-04-29 13:16                     ` Nicolas Pitre
2011-04-29 13:16                       ` Nicolas Pitre
2011-04-29 13:53                       ` Russell King - ARM Linux
2011-04-29 13:53                         ` Russell King - ARM Linux
2011-04-29 19:14                         ` Nicolas Pitre
2011-04-29 19:14                           ` Nicolas Pitre
2011-05-04  7:23                           ` Tony Lindgren
2011-05-04  7:23                             ` Tony Lindgren
2011-05-04 13:12                             ` Tony Lindgren
2011-05-04 13:12                               ` Tony Lindgren
2011-05-04 13:38                             ` Nicolas Pitre
2011-05-04 13:38                               ` Nicolas Pitre
2011-05-09 11:19                               ` [PATCH] ARM: Make sure appended device tree data won't overlap kernel BSS Tony Lindgren
2011-05-09 11:19                                 ` Tony Lindgren
2011-05-09 14:49                                 ` Tony Lindgren [this message]
2011-05-09 14:49                                   ` Tony Lindgren
2011-05-12 12:59                                   ` Tony Lindgren
2011-05-12 12:59                                     ` Tony Lindgren
2011-05-13  7:39                                     ` Nicolas Pitre
2011-05-13  7:39                                       ` Nicolas Pitre
2011-05-13 11:21                                       ` Tony Lindgren
2011-05-13 11:21                                         ` Tony Lindgren
2011-05-13 13:09                                         ` Nicolas Pitre
2011-05-13 13:09                                           ` Nicolas Pitre
2011-05-13 13:28                                           ` Tony Lindgren
2011-05-13 13:28                                             ` Tony Lindgren
2011-06-07 12:43                                             ` Tony Lindgren
2011-06-07 12:43                                               ` Tony Lindgren
2011-06-07 13:14                                               ` Nicolas Pitre
2011-06-07 13:14                                                 ` Nicolas Pitre
2011-06-07 13:22                                                 ` Tony Lindgren
2011-06-07 13:22                                                   ` Tony Lindgren
2011-06-12  6:14                                         ` Nicolas Pitre
2011-06-12  6:14                                           ` Nicolas Pitre
2011-06-13 10:49                                           ` Tony Lindgren
2011-06-13 10:49                                             ` Tony Lindgren
2011-05-09 11:23 ` [PATCHv3] ARM:boot:device tree: Allow the device tree binary to be appended to zImage Tony Lindgren
2011-05-09 11:23   ` Tony Lindgren

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