linux-kernel - Re: The code segment of the user level in PPC64 are in VMAs with write permissions

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Date:	Wed, 19 Dec 2007 12:55:23 +0200
From:	Dotan Barak <dotanb@....mellanox.co.il>
To:	Eric Dumazet <dada1@...mosbay.com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: The code segment of the user level in PPC64 are in VMAs with
 write permissions

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
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