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Message-ID: <4768F89B.1030507@dev.mellanox.co.il>
Date: Wed, 19 Dec 2007 12:55:23 +0200
From: Dotan Barak <dotanb@dev.mellanox.co.il>
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To: Eric Dumazet <dada1@cosmosbay.com>
CC: linux-kernel@vger.kernel.org
Subject: Re: The code segment of the user level in PPC64 are in VMAs with
 write permissions
References: <4768C675.1030804@dev.mellanox.co.il> <4768E02F.20700@cosmosbay.com>
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Eric Dumazet wrote:
> This is because on PPC architecture, address of a function points to a 
> small
> data area (a function descriptor) where the caller can find 
> informations about :
>
> - Address (in the text segment, so readonly) of the target function
> - Address of the TOC for this function.
>
>
> http://www.linux-foundation.org/spec/ELF/ppc64/PPC-elf64abi-1.9.html#FUNC-ADDRESS 
>
>

thank you very much for clearing this issue.
Dotan