sbellem/arm-hello

hello world OS for aarch64 architecture

arm-hello

This is an Hello-World-OS in Rust running on the aarch64 architecture. This project is written purely in Rust using inline assembly for startup.

Build and run

This project depends on

• Rust
• Xargo
• QEMU
• Aarch64-Toolchain

If you have installed these, just run

> make run

Resources

Because there is no such thing as a VGA-Buffer for this architecture, output is printed to the serial console through the port UART0, which QEMU supports through the -nographic or -serial stdio options. This post for ARM bare metal coding in C was really helpful for getting a grasp of it.

This bootloader project from Philipp Oppermann helped finding out how to embed assembly in rust. For more OS-stuff there is his awesome series Writing an OS in Rust.