Rust

• Learn Rust
• Kernel modules Linux/FreeBSD
• Embedded Rust
• OS Development

Additional resources:

• Rust for Linux
• Rust module hello world
• Another Hello world module
• Geoffrey Thomas' video

I am primarily focused on Rust for Linux. After some testings here is a where I am as at early june, 2022.

• It works on Ubuntu 20.04. I am using Ubuntu 20.04 as VM on M1 macbook and on Intel VirtualBox.
• Ubuntu 20.04 supports clang and llvm 11. Later distros, such as Fedora 36, installs clang and llvm 14, which does not work.
• The kernel can be compiled successfully. All the ko in sample/rust can be insmod and rmmod successfully.

To do:

• Hack the KBuild language
• Hack the overall mechanisms
• Develop my own ko in-tree or out-tree
• Read the Rust for Linux mailing list

I have got this error:

Build error: failed to run custom build command for `linux-kernel-module v0.1.0

Seems that it doesn't work on M1 Linux.

Finding the Rust target

FreeBSD Rust doesn't work on aarch64 FreeBSD.

For Intel mac, Parallels failed to boot the FreeBSD 12 or 13 isntallation disk.

Now using VirtualBox on Intel mac

VirtualBox issue. The good news is that VirtualBox can run on Intel mac again. https://stackoverflow.com/questions/65149373/kernel-driver-not-installed-rc-1908-getting-errors-in-macos-big-sur-11-0-1

edit: This sub-issue, or sub-quest, has been resolved. I ended up running FreeBSD 12.3 in virtualbox on my old Intel mac.

Here tells how to 在核內長銹而不失霸氣。 這裏有另一篇文章。

Another way of doing it