News for hackers. Stuff that matters.

A comment on Copy-and-Patch Compilation: fast compilation algorithm for high-level languages. Parent comment

Re:Copy-and-Patch Compilation: fast compilation algorithm fo... by IAmLiterallyAB on Tuesday June 04, 2024 @09:08AM (#40574201)
Oh, for sure what I said wouldn't work on a W^X system. I was just pointing out that one of the most widely used JIT software uses WX pages.

What OSes prohibit that? Linux doesn't (well, I think it can with SeLinux maybe?). OpenBSD might?

[ Parent | on HN ]
Re:Copy-and-Patch Compilation: fast compilation algorithm fo... by mrugiero on Friday June 07, 2024 @12:11PM (#40610008)
The question was about OSes with hardened runtime protections. The most basic of them all is W^X. All BSDs use it, and IIRC Linux is able to enforce it as well. I'd be surprised if it isn't the default in most distros, but I guess it's not impossible. I need to go for lunch so I won't check right now.
[ Parent | on HN ]