On: JIT Compiling Code in 5μs

[shakna]

The wiki page mentions this is only a minor problem. Because everyone just writes, then switches and executes.

[asdfsa32 → shakna]

But this means that you have to decide who is allowed to switch.

[shakna → asdfsa32]

VirtualProtect/mprotect aren't privileged calls on any modern OS.

It's how you do JIT on macOS, where W^X is enforced, for example.