Messages in this thread | | | Date | Sat, 01 May 1999 03:32:48 -0700 | From | "H. Peter Anvin" <> | Subject | Re: 64bit port |
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David Miller wrote: > > Date: Sat, 1 May 1999 11:11:21 +0100 (GMT) > From: Alex Buell <alex.buell@tahallah.demon.co.uk> > > Ie. on loading of a binary could quickly scan it for illegal > sequences and overwrite with NOPs, then execute it. Of course, this > doesn't cater for things that does J-I-T compilation & execution > though. > > You roughly have described how we hope to work around it. > > IRIX does something very similar to work around cpu lockup > bugs on early MIPS r4k parts. >
I'd be really curious to hear the details. Are you making it illegal to map a page both writable and executable?
-hpa
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