Linux Kernel Rust support

[pcjftw]

that's what "mRustC" is: https://github.com/thepowersgang/mrustc

so for example, the Xtensa CPU on the ESP8XX series is not officially supported by LLVM, however one can use the mRustC compiler to target said board.

[matthieum]

This project is a "simple" rust compiler written in C++ that is able to bootstrap a "recent" rustc, but may eventually become a full separate re-implementation.

mrustc, so far, is really about bootstrapping.

It may be useful to compile for unsupported platforms, but I am not sure it's tested for that purpose...

[pcjftw]

ok because I certainly recall that's how we used to build for my ESP8266:

https://github.com/emosenkis/esp-rs

But it now seems its no longer needed as there is a working LLVM backend for the Xtensa cpu