linux-kernel - Re: asm-sh64/module.h defines 32 bit ELF types

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Message-ID: <20070618002921.GA30509@linux-sh.org>
Date:	Mon, 18 Jun 2007 09:29:21 +0900
From:	Paul Mundt <lethal@...ux-sh.org>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: asm-sh64/module.h defines 32 bit ELF types

On Fri, Jun 15, 2007 at 01:10:40PM -0700, Jeremy Fitzhardinge wrote:
> I'm doing a little cleanup of ELF stuff around the tree, and I noticed
> that asm-sh64/module.h defines 32 bit versions of the ELF types rather
> than 64.  Is this right?
> 
Yes, that's correct. sh64 supports both a 64-bit and a 32-bit ABI, but in
practice, only the 32-bit is used (both for kernel and user space). While
registers and loads/stores are 64-bits, the pointer size is still 32 when
using the 32-bit ABI. This was the reason for things like ARCH_SLAB_MINALIGN.
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