Skip to content

readme.md

Latest commit

 

History

History
40 lines (27 loc) · 1.18 KB

readme.md

File metadata and controls

40 lines (27 loc) · 1.18 KB

LUMINA OS

Install Dependencies

  • install qemu
  • rustup default nightly
  • rustup target add riscv64gc-unknown-none-elf
  • cargo install cargo-binutils

How it works

.cargo contains information for cargo on how to build and run the OS on the emulator with cargo run

It runs run.sh which runs the qemu emulator with basic configurations.

The binary is built using the riscv64gc-unknown-none-elf compilation target.

in src/linker/virt.linker you will find the linker script used to set up the binary executable. it is well documented and should not need much if any configuation.

the entry point of our program is _start in (found in src/linker/virt.linker). This links to a _start symbol found in boot.s which contains some assembly code to initialize everything.

boot.s is imported by main.rs, and eventually jumps to kmain which is the entry point of our OS.

Create hdd.dsk

We need to create a hard drive disk for the qemu emulator.

MacOS

mkfile -n 32m hdd.dsk

Linux

fallocate -l 132mM hdd.dsk

Running

cargo run

Based off of Stephen's Rust RiscV Blog OS