Support for allocation of executable memory

[Felix Cravic]

Hello, I was wondering if there has ever been any discussion about supporting allocation of executable memory (and then its execution). The use cases I have in mind are emulation, very hot paths requiring specialized assembly (which could still fallback to jvm bytecode if unavailable), and a potential option to keep the whole application written in a JVM language.

I doubt that such addition would drastically change the API, perhaps some concern about OS specific restrictions (e.g. write-xor-execute memory protection), and platform not supporting JIT compilation at all (IOS, potentially problematic for Graal & project Leyden)

Discussion would be appreciated!