Rewrite Rust in Rust

[TylerReid]

https://github.com/rust-lang/rust/issues/61013

Why Rust uses LLVM? It is written in C++. Why rust isn't completely self-hosted?

[Beyarz]

Oh dear...

[porky11]

But ust is already written in rust. It only uses an LLVM backend, which doesn't really matter.

[TylerReid]

So what I am hearing is we need to rewrite LLVM in rust...

[brightly-salty]

Way ahead of you.
https://www.reddit.com/r/rust/comments/5z2yvw/why_not_rewrite_llvm_in_rust/

[bjorn3]

Current status of Rewriting Rust in Rust

• Rust compiler: https://github.com/rust-lang/rust/
• Rust compiler backend: https://github.com/bjorn3/rustc_codegen_cranelift/
• libc: https://gitlab.redox-os.org/redox-os/relibc/ (Needs to be tested for bootstrapping rustc. Only supports Redox OS and Linux.)
• Linker: TBD (Any volunteers?)

[SOF3]

Does Redox have linkers in Rust?

[bjorn3]

No, it uses ld from binutils.

[Rudxain]

@bjorn3 Please don't forget the makefiles!

• Tracking Issue for porting run-make tests to use Rust rust-lang/rust#121876

[Rudxain]

Relevant quote from the blog-post (@Oneirical):

I went from not knowing Rust at all 1 year ago to having my life rewritten in it. Who could have thought the Rewrite It In Rust evangelists had their dominion extend even to people's lives?

[Rudxain]

To anyone who is not subscribed to the issues and PRs, makefiles are gone!