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Date:   Fri, 5 Dec 2014 13:44:03 -0600 (CST)
From:   Christoph Lameter <cl@linux.com>
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To:     David Daney <ddaney.cavm@gmail.com>
cc:     Kees Cook <keescook@chromium.org>,
        Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>,
        Linux MIPS Mailing List <linux-mips@linux-mips.org>,
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Subject: Re: [PATCH v3 3/3] MIPS: set stack/data protection as
 non-executable
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On Fri, 5 Dec 2014, David Daney wrote:

> The problem is not with "modern" executables that are properly annotated with
> PT_GNU_STACK.
>
> My objection is to the intentional breaking of old executables that have no
> PT_GNU_STACK annotation, but require an executable stack.  Since we usually
> try not to break userspace, we cannot merge a patch like this one.

How old are these and how many are still around? Can the annotation be
added with a tool?