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Date: Tue, 19 Jan 2016 10:11:00 -0800
From: Kees Cook <>
To: Emese Revfy <>
Cc: "" <>
Subject: Re: Proposal for kernel self protection features

Hi Emese,

On Fri, Nov 6, 2015 at 2:55 PM, Emese Revfy <> wrote:
>  * constify: This plugin constifies all structure types which contain only
>     function pointers or are explicitly marked for constification.
>     If some code wants to modify a read-only object it will cause
>     a compile error.
>     There are two gcc attributes:
>        * no_const: if we don't want constification
>        * do_const: if we want to constify a structure type which has a
>           non-function pointer field

Can you give a status update on the constify plugin work? I'm curious
to hear what your plans are.



Kees Cook
Chrome OS & Brillo Security

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