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Cc: William Lee Irwin III <wli@holomorphy.com>,
       Michael Kerrisk <michael.kerrisk@gmx.net>, linux-kernel@vger.kernel.org
From: Kyle Moffett <mrmacman_g4@mac.com>
Subject: Re: Testing PROT_NONE and other protections, and a surprise
Date: Wed, 30 Jun 2004 23:44:48 -0400
To: Jamie Lokier <jamie@shareable.org>
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On Jun 30, 2004, at 23:26, Jamie Lokier wrote:
### i386 ###
> Requested PROT | ---    R--    -W-    RW-    --X    R-X    -WX    RWX
> ======================================================================= 
> =
> MAP_SHARED     | ---    r-x    !w!    rwx    r-x    r-x    rwx    rwx
> MAP_PRIVATE    | ---    r-x    !w!    rwx    r-x    r-x    rwx    rwx

### ppc32 ### Appears to be the same
Requested PROT | ---    R--    -W-    RW-    --X    R-X    -WX    RWX
========================================================================
MAP_SHARED     | ---    r-x    !w!    rwx    r-x    r-x    rwx    rwx
MAP_PRIVATE    | ---    r-x    !w!    rwx    r-x    r-x    rwx    rwx

Just for kicks, I ran this on Mac OS X too :-D  Interesting results!
Requested PROT | ---    R--    -W-    RW-    --X    R-X    -WX    RWX
========================================================================
MAP_SHARED     | ---    r-x    ---    rwx    ---    r-x    ---    rwx
MAP_PRIVATE    | ---    r-x    ---    rwx    ---    r-x    ---    rwx

Cheers,
Kyle Moffett