GeezerVison

A number of example programs to accompany the os.cs.luc.edu lecture notes for the Operating Systems course at Loyola University Chicago.

• Updated CMake build process. All examples are driven by a top-level CMakeLists.txt. CMake is pretty awesome. I just don't have the time to write Makefiles by hand, and I never enjoyed working with autoconf.

• Establish foundation for using GoogleTest.

• Modular structure to allow various examples to be standalone programs, possibly with internal library dependencies.

• Many new examples with pthreads.

The default build compiles the example programs. GoogleTest-based test binaries are optional and are enabled with -DBUILD_TESTING=ON.

Default build:

• git clone https://github.com/SoftwareSystemsLaboratory/systems-code-examples
• cd systems-code-examples
• cmake -S . -B build
• cmake --build build

Build and run tests:

• cmake -S . -B build -DBUILD_TESTING=ON
• cmake --build build
• ctest --test-dir build --output-on-failure

Build the Linux-only optional examples:

• cmake -S . -B build -DBUILD_OPTIONAL_EXAMPLES=ON
• cmake --build build

• git clone https://github.com/SoftwareSystemsLaboratory/systems-code-examples
• apt install build-essential cmake
• cd systems-code-examples
• cmake -S . -B build
• cmake --build build

We only provide limited support for OS X and Homebrew at this time. The core examples from https://os.cs.luc.edu work. However, some of the newer examples rely on some GNU-specific (and sometimes GNU-only) features that don't seem to have a clear equivalent on OS X (even via Homebrew). I'm still working on it.

Nevertheless, if you want to try, do the following:

• git clone https://github.com/SoftwareSystemsLaboratory/systems-code-examples
• brew install cmake
• cd systems-code-examples
• cmake -S . -B build
• cmake --build build

To build the GoogleTest-based test binaries, configure with -DBUILD_TESTING=ON. This requires network access during CMake configuration unless GoogleTest has already been downloaded or supplied through CMake's FetchContent options.

Hopefully, by end of the Fall semester, I will be able to get the 5 pesky examples to build/run on OS X. It's not a matter of if but when.