This is an experimental operating system implementation, targeting x86 processors.
To develop, we assume a linux environment.
We use CMake as the build system. Additionally, TWO toolchains are required:
gcc-6.4.0, targeting host platform.gcc-6.4.0-i686-elf, targeting freestanding environment.
For instructions on building a GCC cross compiler, please consult this page.
You may create a toolchain file like this, and tell CMake about it with -DCMAKE_TOOLCHAIN_FILE=.
You also need to pass in a -DPROFILE=, possible values are UNIT_TEST, DEBUG and RELEASE.
We use the Catch framework for unit testing. Unit tests are run on host platform, so you need to use
toolchain 1 and pass in -DPROFILE=UNIT_TEST .
Example command to bundle and run the system under QEMU:
# Assuming your build directory is cmake-build-debug
sudo scripts/bundle.sh cmake-build-debug/ \
&& qemu-system-i386 -drive format=raw,file=cmake-build-debug/myos.img