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BugTraq
http://www.smashguard.org Jan 30 2004 11:34PM Hilmi Ozdoganoglu (cyprian purdue edu) (2 replies) RE: http://www.smashguard.org Feb 03 2004 12:36PM Dave Paris (dparis w3works com) (2 replies) RE: http://www.smashguard.org Feb 06 2004 08:29PM Hilmi Ozdoganoglu (cyprian purdue edu) (3 replies) Re: http://www.smashguard.org Feb 07 2004 11:44PM Crispin Cowan (crispin immunix com) (2 replies) Re: http://www.smashguard.org Apr 29 2004 09:55PM Pavel Machek (pavel ucw cz) (3 replies) Re: http://www.smashguard.org Feb 07 2004 03:27PM Theo de Raadt (deraadt cvs openbsd org) (1 replies) |
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Privacy Statement |
> Well.. they are not really separate bits.
>
> If they was, you'd have ---, --x, r--, r-x. You can't have --x
> combination (which is sad for the emulators).
>
> I believe that on most sane architectures (m68k at least), you can
> have all 4 combinations.
Silly confusion time:
The key is good separation of WRITE and EXECUTE. Far too many CPUs
don't have separate TLB bits for writeable and executable.
--
Nicholas C. Weaver nweaver (at) cs.berkeley (dot) edu [email concealed]
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