x64BareBones - starting a 64 Bits OS almost from scratch

x64BareBones is a basic setup to develop operating systems for the Intel 64 bits architecture.

This project is based on a UNIX based operating system where we implement many key OS features:

• Syscalls
• Scheduling (Priority-Based Round-Robin)
• Memory Management (Buddy and Implicit List)
• Semaphores
• IPC (Pipes)

Environment setup:

1. Install the following packages before building the Toolchain and Kernel:

    user@linux:$ nasm qemu gcc make

2. Go inside the root directory of the repository and run the following command in order to start the Docker container:

    user@linux:$ docker run -d -v ${PWD}:/root --security-opt seccomp:unconfined -ti --name dockerSO agodio/itba-so:1.0

from the directory where you have the x64Barebones project.

Inside the Docker container

3. Compile the Toolchain

    user@linux:$ cd root/x64Barebones/Toolchain
    user@linux:~/x64Barebones/Toolchain$ make all

4. Compile the Kernel, there are two options depending on the memory manager you want to use:

   • Buddy
     4.1. Go to Kernel/Makefile
     4.2. Uncomment line 27
     4.3. Comment line 29

   • Implicit List
     4.1. Go to Kernel/Makefile
     4.2. Uncomment line 29
     4.3. Comment line 27

After that, compile the project. Go to the x64Barebones directory and run:

    user@linux:~/x64Barebones$ make all

From Bash terminal

5. Inside the x64barebones directory, run:

    user@linux:~/x64barebones$ ./run.sh