An OS (kernel) written in Rust to learn OS development.
The kernel uses the multiboot2 standard in order to be booted by Grub. The 32 bit startup code sets up an identity page mapping for the lowest 1 GiB of memory and switches to long mode. It then enters 64 bit Rust code.
- Rust nightly
- Cargo
cargo-xbuildnasm- Grub (specifically
grub-mkrescue) ld
The rust multiboot2 binary is compiled as static library and only later
transformed into an executable elf binary using ld, because I could not
figure out how to use a custom linker script for a specific rust binary via
cargo.
This project currently uses a plain and simple make file, and while I would like to use a better build system, it's not a top priority.
To run the kernel in Qemu, execute
make run
That will build the rust staticlib, convert it to an executable ELF file with the correct layout, build an ISO image containing grub and the kernel, and boot it using qemu.