from Hacker News

How to talk to your parents about hardware memory safety

by miloignis on 8/7/24, 11:05 PM with 40 comments

• by nullc on 8/8/24, 5:39 PM

  I found the cheribuild ( https://github.com/CTSRD-CHERI/cheribuild ) script to build a cross compiler, vm image, and CHERI riscv emulator to be very easy to use and effective.

  My code mostly compiled on CHERI without issue-- I was hoping to find some interesting bug as that's a pretty realistic prospect when porting to CHERI but didn't do so on the code I've tried so far.

• by alberth on 8/8/24, 4:01 AM

  Why has Apple not brought this kind of hardware/software memory safety to their platform?

  They control the entire stack, even down to the silicon.

• by bjornsing on 8/8/24, 9:39 AM

  Cool. Wasn’t aware of CHERI, but was thinking about a “CHERI light” that would use the regular x86/arm MMU to enforce some compartmentalization within programs the other day. Anybody know if there is such a project?

• by JohnFen on 8/9/24, 3:00 PM

  Sheesh. That leans so hard on ageist bigotry that it actually made me angry.