ChaOS is an SMP-aware kernel that we are doing as a part of our studies at Epitech.

• make
• gcc or clang (latest version, ideally)
• grub-mkrescue and libisoburn (usually packed with other binaries as grub)
• mtools
• dialog
• qemu (cpu emulator) optional

If you are using apt-get as your package manager (Debian, Ubuntu etc.), you can use this command to install all dependencies:

apt-get install qemu grub-pc-bin xorriso mtools

If you are using pacman as your package manager (ArchLinux, Manjaro etc.), you can use this command:

pacman -S dialog qemu grub libisoburn mtools

If you are using portage as your package manager (Gentoo), you can use this command instead:

emerge --ask sys-boot/libisoburn sys-fs/dosfstools sys-fs/mtools

If you are using an other package manager, well... Good luck! :p

First, tune as you wish the kernel's configuration with

make config

Then, build the kernel:

make kernel

To build a complete iso with grub installed (suitable for USB flash drives or virtual machines), run

make iso

If you want to run ChaOS through QEMU even if it's boring & useless right now, run

make run

• Kernel options
• Kernel architecture
• Kernel placed in high-addresses
• Boot
  • Multiboot
  • Paging setup
  • GDT setup
  • IDT setup
  • TSS setup
  • SMP setup
• Basic drivers
  • VGA
  • PS/2 Keyboard
• Memory
  • Physical Memory Management
  • Virtual Memory Management (mmap(), munmap() etc.)
  • Virtual segments of memory
  • Kernel heap (kalloc(), kfree(), krealloc())
• ELF Program execution (exec())
• Syscall interface and userspace (ring 3)
• Multi process / threads
  • Scheduling
  • User Threads
  • Kernel threads
  • Processes (mix of clone(), exec() and exit())
• Initrd loading, reading and writing
• Device abstraction
• Filesystem
  • Directory listing (opendir(), readdir(), closedir())
  • Creating and removing files/directories (mkfile(), mkdir(), remove())
  • File basic IO operations (open(), read(), write(), close())
  • File advanced IO operations (pipe(), dup())
  • File informations (stat())
• User space programs (init, tty, shell, basic binaries such as echo, ls, rm, mkdir etc.)
• Virtual filesystems (/proc, /dev)

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