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Comment by eddieh | Hacker News Reader

As someone who has dabbled in OS development over the years, you'd be a fool to use anything other than C (I suppose you could use a restricted subset of C++ if you really don't want to write anything but a toy OS) or assembly if you have something to prove.

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What about Rust disqualifies it? Let's say besides ecosystem immaturity (lack of libraries). As a non-systems programmer, I'm curious.

One drawback about Rust OSes right now is that they must use nightly Rust, and therefore, don't gain our stability guarantees. This is another form of immaturity.

I still wish they would have done it anyway, but oh well :)

On a technical level, there's nothing stopping you: we already have one serious project (Redox) and many, many hobby projects that exist.

They do have some rust showing up in their repos. It looks like its mostly bindings needed to run rust on the OS. I don't know what their long term goals with it are. I'm guessing they want it for writing high performance user space daemons or whatever the fuchsia equivalent is.

https://github.com/fuchsia-mirror?utf8=%E2%9C%93&q=&type=&la...

Not OP but the reason I dislike Rust for OS/kernel development is that it's just too damn complicated. Kernels should be written in more conservative languages.

C just pushes the complexity onto the programmer without help.

Random subjective opinion presented as objective truth!

because > Not OP but the reason I dislike Rust for OS/kernel development is that it's just too damn complicated

isn't?

I'm also not sure why stating my opinion is a problem. If you can't handle someone not bother to pussyfoot around and preface any statement with an "IMO" disclaimer, that seems like your problem.

Dude lighten up it was a joke :)

oh alright then.

I haven't personally looked into the Rust based OS (I know it exists), but I can guarantee that they're using inline assembly, fighting with language features, working around limitations, and forgoing safety.

I'd be shocked if that isn't the case. I'm not saying that you can't build an OS in Rust or other languages, just that OS development is complicated enough without having to fight your language.

You just provided at least two good reasons. Add the ABI instability as a third and rust has struck out.

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