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Comment by devinus | Hacker News Reader

Could this allow for developing a toy kernel in Rust as long as you define those few libc functions (maybe even with e.g. musl[1])?

[1]: http://www.musl-libc.org/

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It's tempting to just say "yes". Tool support is not yet good enough. Inline assembly is available. Language constructs allow for deterministic memory allocation patters.

https://github.com/mozilla/rust/pull/5317

Someone may have beaten you to it: https://github.com/charliesome/rustboot

It's not obvious to me you can write to memory at arbitrary memory locations, which is usually a requirement for writing a kernel.

You can:

  unsafe { *(123 as *mut uint) = 4567; }

There is always Assembly as well.

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