This repository will demonstrate how to set up a basic kernel in C using Limine.
Any make
command depends on GNU make (gmake
) and is expected to be run using it. This usually means using make
on most GNU/Linux distros, or gmake
on other non-GNU systems.
It is recommended to build this project using a standard UNIX-like system, using a Clang/LLVM toolchain capable of cross compilation (the default, unless KCC
and/or KLD
are explicitly set).
Additionally, building an ISO with make all
requires xorriso
, and building a HDD/USB image with make all-hdd
requires sgdisk
(usually from gdisk
or gptfdisk
packages) and mtools
.
The KARCH
make variable determines the target architecture to build the kernel and image for.
The default KARCH
is x86_64
. Other options include: aarch64
, loongarch64
, and riscv64
.
Running make all
will compile the kernel (from the kernel/
directory) and then generate a bootable ISO image.
Running make all-hdd
will compile the kernel and then generate a raw image suitable to be flashed onto a USB stick or hard drive/SSD.
Running make run
will build the kernel and a bootable ISO (equivalent to make all) and then run it using qemu
(if installed).
Running make run-hdd
will build the kernel and a raw HDD image (equivalent to make all-hdd) and then run it using qemu
(if installed).
For x86_64, the run-bios
and run-hdd-bios
targets are equivalent to their non -bios
counterparts except that they boot qemu
using the default SeaBIOS firmware instead of OVMF.