sh4d1/rustberry

Small OS for RaspberryPi 3 written in Rust

Rustberry OS

This is a WIP kernel for RaspberryPi 3 written in Rust. Some code is taken from this Stanford class.

Requirements

You will nedd a nightly Rust installation. The fastest way is to use rustup. You will also need some tools, you can install the whole toolchain with:

$ curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain nightly
$ rustup component add rust-src llvm-tools-preview
$ cargo install cargo-xbuild cargo-binutils

Building

• To build a debug kernel: DEBUG=1 make
• To build a release kernel: make

Running

QEMU

To run the kernel in QEMU you can either run (you will need QEMU):

• make run
• qemu-system-aarch64 -kernel build/kernel8.img -M raspi3 -serial null -serial mon:stdio

Testing (WIP)

make test

rustberry's Issues

Scheduler not working correctly

When only one process is scheduled the scheduler is working, breakpoints are working, everything is okay. However when a second process is scheduled, the first time the scheduler is called it works, the second process have the CPU, but as soon as an exception occurs, the kernel freezes. (Breakpoint, timer exception, ...)

cannot use make

Building target/aarch64-none-elf/release/rustberry
RUST_TARGET_PATH="/home/josselin/develop/rustberry" cargo xbuild --release --target=aarch64-none-elf 
WARNING: the sysroot can't be built for the Stable channel. Switch to nightly.
   Compiling tock-regs v0.1.0 (https://github.com/tock/tock.git?rev=8b64ec2#8b64ec27)
   Compiling spin v0.4.8
   Compiling volatile v0.2.4
   Compiling once v0.3.3
error[E0463]: can't find crate for `core`
  |
  = note: the `aarch64-none-elf` target may not be installed

error: aborting due to previous error

For more information about this error, try `rustc --explain E0463`.
error[E0463]: can't find crate for `core`
  |
  = note: the `aarch64-none-elf` target may not be installed

error: aborting due to previous error

For more information about this error, try `rustc --explain E0463`.
error: Could not compile `once`.
warning: build failed, waiting for other jobs to finish...
error: Could not compile `volatile`.
warning: build failed, waiting for other jobs to finish...
error[E0463]: can't find crate for `core`
  |
  = note: the `aarch64-none-elf` target may not be installed

error: aborting due to previous error

For more information about this error, try `rustc --explain E0463`.
error: Could not compile `tock-regs`.
warning: build failed, waiting for other jobs to finish...
error[E0463]: can't find crate for `core`
  |
  = note: the `aarch64-none-elf` target may not be installed

error: aborting due to previous error

For more information about this error, try `rustc --explain E0463`.
error: Could not compile `spin`.

To learn more, run the command again with --verbose.
Makefile:32 : la recette pour la cible « target/aarch64-none-elf/release/rustberry » a échouée
make: *** [target/aarch64-none-elf/release/rustberry] Erreur 101