Rust Bare-Bones Kernel

This is designed to be a rust equivalent of the OSDev.org Bare_Bones article, presenting the bare minimum you need to get started.

Requirements

• A recent (1.0 nightly) build of rustc
• A suitable cross-compiling copy of binutils (i586-elf or x86_64-elf)
• A copy of the libcore source in .../libcore (synlink will do)

Features

• x86 and x86_64 (amd64) "ports"
• Initial paging for both (with higher-half)
• Serial output using the classic PC serial port, formatted using ::core::fmt
• Links with libcore

Building

Roughly, this:

$ git clone https://github.com/thepowersgang/rust-barebones-kernel
$ cd rust-barebones-kernel
$ # Make sure that you copy the libcore from the same commit as the build of rustc you're using
$ # If you're using a nightly or prepared build, you can use `rustc -v --version` to get a commit hash.
$ cp -r /some/installation/of/rust/src/libcore .
$ cd Kernel
$ make
$ cd ..
$ qemu-system-x86_64 -kernel kernel.amd64.bin -serial stdio

You should see a

[main] Hello world!

print to the console.