Rust Bare Bones

This page is a work in progress.

This page may thus be incomplete. Its content may be changed in the near future.

WAIT! Have you read Getting Started, Beginner Mistakes, and some of the related OS theory?

Kernel Designs
Models
Monolithic Kernel Microkernel Exokernel Nano/Picokernel Cache Kernel Virtualizing Kernel Megalithic Kernel
Other Concepts
Modular Kernel Higher Half Kernel 64-bit Kernel Hybrid Kernel

Notes

• The rust libcore can easily be included in a kernel, it's analogous to C's freestanding headers
• Enable `--gc-sections` in ld to avoid having to define symbols you don't need (e.g. floating point math functions)
• Always use a target json file (Flexible Target Specifications)
• If you're building a UEFI app, disable function sections as well
  • rustc puts every item in its own section by default. The PE format has a limit of 96 sections. So unless you disable function sections, your project will most likely fail to load.

Examples

• https://github.com/thepowersgang/rust-barebones-kernel - A framework written in rust 1.0 alpha, supporting x86 and x86-64, boots off multiboot.
• https://github.com/charliesome/rustboot - VERY old (rust 0.7), includes a bootsector.
• https://github.com/redox-os/redox
• http://os.phil-opp.com/ - New Rust OS Tutorial/Blog by Philipp Oppermann