Lilith 0.0.31

operating-system · development · ffwff

POSIX-like x86-64 kernel with a 32-bit userspace written in Crystal/C. Building lilith needs to be compiled with a patched crystal compiler, to build it, run the command: make toolchain/crystal/.build/crystal You will also need an appropriate x86_64-elf binutils toolchain in order to link and assemble the kernel, as well as i686-elf binutils to build the bootstrap code. make build/kernel Building the userspace A Makefile is provided for building the userspace toolchain, to build it, go to the userspace/toolchain directory and use make . Once built, a patched version of GCC/Binutils will be installed in userspace/toolchain/tools/bin , simply set your PATH variable to that location and you can use the toolchain (with the i386-elf-lilith prefix) To compile C programs for the system, you'll also need to build the libc. In the userspace/toolchain directory, do: make build_libc Running A CPU with x64 support is required to run the OS. The Makefile provides a script which will run QEMU on the kernel: make run To run with storage, an MBR-formatted hard drive image with a FAT16 partition must be provided in the running directory with the name drive.img . The kernel will automatically boot the main.bin executable on the hard drive, or panic if it can't be loaded. make run_img Features Basic x86-64 support Hybrid conservative-precise incremental garbage collector IDE/ATA support (well, it can only load from primary master) FAT16 support Basic syscalls (open, read, write, spawn,...) Preemptive multitasking! Userspace C library written in Crystal/C And much more as I go... License Lilith is licensed under GPLv3. Unless stated otherwise, all code in the project are licensed under GPLv3. Assembly code under userspace/libc/src/functions/math are taken from musl-libc and are licensed under MIT. Patches in toolchain/* are licensed under MIT. Feel free to upstream them!