From: Scott Wood <scottwood@freescale.com>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] [PPC] PLEASE READ - was: [PATCH] Fix linker scripts: add NOLOAD atribute to .bss/.sbss sections
Date: Mon, 04 Feb 2008 13:17:16 -0600 [thread overview]
Message-ID: <47A764BC.3000303@freescale.com> (raw)
In-Reply-To: <20080204191431.3384224D1D@gemini.denx.de>
Wolfgang Denk wrote:
> In message <20080204165640.GC19264@ld0162-tx32.am.freescale.net> you wrote:
>> On Mon, Feb 04, 2008 at 12:32:36AM +0100, Wolfgang Denk wrote:
>>> So far, it is not clear to me what a better choice for a global
>>> register variable could be (i. e. which register we can chose for our
>>> purpose without causing the same or other problems.
>> r2 is generally used for this purpose.
>
> Hm... R2 is documented to be the TOC pointer?
The ABI document says, "Register r2 is reserved for system use and
should not be changed by application code."
Linux uses it for the "current" pointer.
-Scott
next prev parent reply other threads:[~2008-02-04 19:17 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-07 11:16 [U-Boot-Users] [PATCH] Fix linker scripts: add NOLOAD atribute to .bss/.sbss sections Wolfgang Denk
2007-12-07 13:28 ` Josh Boyer
2007-12-11 22:50 ` brino
2007-12-12 11:17 ` Clemens Koller
2007-12-12 11:32 ` [U-Boot-Users] fixed: " Clemens Koller
2008-01-12 19:34 ` [U-Boot-Users] " Wolfgang Denk
2008-01-13 13:59 ` Stefan Roese
2008-02-03 23:32 ` [U-Boot-Users] [PPC] PLEASE READ - was: " Wolfgang Denk
2008-02-04 10:37 ` Stefan Roese
2008-02-04 16:56 ` Scott Wood
2008-02-04 19:14 ` Wolfgang Denk
2008-02-04 19:17 ` Scott Wood [this message]
2008-02-14 22:19 ` Wolfgang Denk
2008-02-15 18:18 ` Joakim Tjernlund
2008-02-06 9:59 ` Joakim Tjernlund
2008-02-06 22:11 ` Wolfgang Denk
2008-02-07 0:20 ` Joakim Tjernlund
2008-02-07 16:13 ` Wolfgang Denk
2008-02-04 17:40 ` Timur Tabi
2008-02-04 19:16 ` Wolfgang Denk
2008-02-04 19:24 ` Timur Tabi
2008-02-04 20:36 ` Wolfgang Denk
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