A Freestanding Rust Binary (ru)

[giscus[bot]]

A Freestanding Rust Binary (ru)

Первый шаг в создании собственного ядра операционной системы — это создание исполняемого файла на Rust, который не будет подключать стандартную библио…

https://os.phil-opp.com/ru/freestanding-rust-binary/

[xierongchuan]

This is cool! :)

[master30f]

Am I the only one having issues with rust-analyzer marking the panic handler fn as a duplicate originally defined in std, even though i have the no std attrib at the beginning of the file? (the code still builds fine though)

[bjorn3]

Setting the rust-analyzer.checkOnSave.allTargets config to false should fix that issue. Once you get to the testing chapter I think you can re-enable it. Basically the issue is that rust-analyzer by default does cargo check --all-targets which causes not just the main executable to be checked, but also to be built as test executable. This requires the test library from the sysroot which pulls std. Std defines a panic handler too, but isn't used by blog os as it doesn't work without running on top of an os supported by std.

[Cerber-Ursi]

Just run into this question on SO, so I'd like to ask - is it intentional that Cargo.toml here doesn't have any edition field?

[bjorn3]

I don't think so. Looks like the same error was made in the original english version.

[Cerber-Ursi]

Whoops. I thought I've made this comment under the original, sorry for the confusion.