NYK

New Yk Kernel

yet another attempt at this :)

I hated working on the Xv6 code bc so much of it uses legacy stuff (__sync builtins, etc.) as well as having been written in a form factor that's okay for learning, but is mildly a nightmare to actually modify too much.

I'm sure someone thinks the same about my code, but this is also not their project, so that doesn't matter.

Licensing

SPDX-License-Identifier: CC-BY-NC-SA-4.0 OR GPL-3.0-or-later

Build Instructions

The following build tools are required:

• GCC cross compiler for riscv64-unknown-elf
  • This requires GNU Binutils for riscv64-unknown-elf, and this will be needed.
• Cmake
• make
• vlunnr (optional, recommended)
  • Requires Qemu with - at minimum - the riscv64 system emulator
  • Requires Das U-Boot for the RISC-V64 virt machine
• Git (optional, recommended)

First, obtain sources (git is easiest).

Then, run the following commands in the source directory/repo root:

mkdir build && cd build
cmake .. --toolchain toolchains/riscv64-unknown-elf.cmake
make
cd ..
vlunnr run build/nyk_img.elf

The final command will start up vlunnr using a predetermined set of commands to run Qemu. For Qemu to run successfully, you will need a U-Boot M-mode firmware file called u-boot.bin in the working directory of Qemu (repo root following the above commands).

Contrib

Clone the git repo from https://git.vlpatton.gay/git/nyk.git, send email PRs (git request-pull) to vlpatton@vlpatton.gay.