A Freestanding Rust Binary (zh-CN)

[giscus[bot]]

A Freestanding Rust Binary (zh-CN)

创建一个不链接标准库的 Rust 可执行文件，将是我们迈出的第一步。无需底层操作系统的支撑，这样才能在裸机（bare metal）上运行 Rust 代码。

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

[pengwon]

great job!

[dreamerlzl]

I also recommend reading the Chapter "Rust without the standard library" in Rust for Rustaceans by Jon as a complement

[pengwon]

thanks

[Daniel-Freire-Oliveira]

assurance

[Nazaroni]

It looks promising!

[Daniel-Freire-Oliveira]

good job!!
I also recommend you to take a look at creating an OS in assembly and c to understand a little more

[ashupadhi01]

Have you done that ? If yes, which resources you followed ? Give me some idea.

[YoungHaKim7]

thank you 👍

[cshuo]

looks good.

[KeplerIO]

There is a Tier 2 compilation target triple: "x86_64-unknown-none"

Looks like it is the perfect use case for this example.

https://doc.rust-lang.org/nightly/rustc/platform-support/x86_64-unknown-none.html

[phil-opp]

Yes, we will use that target for the third edition of the blog. You can read the current draft at https://github.com/phil-opp/blog_os/blob/edition-3/blog/content/edition-3/posts/01-minimal-kernel/index.md

[FelixSelter]

Thank you for the tutorial. My panic! handler was not working though. The rust compiler would break the entire code when I call panic!. Thats because theres still some minimal unwinding which uses the stackpointer. As the stack was not setup properly the kernel tried to access negative memory.

To see how to get your panic handler working refer to this discussion: https://users.rust-lang.org/t/bare-metal-panic-generates-undefined-instructions/94992/9

[phil-opp]

Thanks for reporting! I didn't see this error before. Do you have your code online somewhere so that I can debug?

[FelixSelter]

I can publish it. Its very simple

[phil-opp]

That would be great!

[Lisheri]

nb。 It's too strong