How Rust Bootstraps in a Bare-Metal Environment: Revision history

19 November 2025

• curprev 07:5607:56, 19 November 2025 PC talk contribs 10,589 bytes +10,589 Created page with "500px Every Rust developer has seen the line: fn main() { println!("Hello, world!"); } But what if there’s no OS to call println!()? No file descriptors, no libc, no standard output, no main function in the traditional sense. That’s where the story of Rust in bare metal begins — a place where the compiler doesn’t just build your code; it builds your world. This is the story of how Rust bootstraps itself on hardware ..."