apoptOS

apoptOS

A modern x86_64 UNIX-like microkernel-based operating system written in C and Assembly

Features

• Higher half kernel
• Limine bootloader
• Stivale2 boot protocol
• Serial communication
• GDT and TSS
• IDT and ISR's
• Physical memory management -> Bitmap based allocator & Slab allocator
• Virtual memory management -> 4-level paging support
• Heap memory -> malloc and free
• Basic kernel library
• ACPI table parsing
• LAPIC and IOAPIC
• LAPIC timer and HPET
• SMP

Goals

• Understand:

  • Microkernels
  • UNIX-like systems
  • Scheduling
  • Messaging (IPC)
  • Syscalls
  • Userland
  • ELF
  • Filesystems

• Write:

  • Clean code
  • A blog, documenting learning process

Dependencies

NOTE: Depending on your Linux Distribution the package names might be different (supposing you are using Linux)

• x86_64-elf-binutils
• x86_64-elf-gcc
• nasm-git
• make
• xorriso
• qemu

Installation

• Install the dependencies
• Get the repository
  • git clone https://github.com/Tix3Dev/apoptOS --recursive
  • cd apoptOS
• Build it
  • make all (release build, for debug build use make all_dbg)
• Run it
  • make run (release QEMU version, for debug QEMU version use make run_dbg)

Contributing

For those interested in contributing, please refer to the contributing guidelines.