This set of tool chain is typical and will work successfully, particularly for a simplistic system. For a more complex system, the tool chain could get more complicated. You could add

* A unit test framework for unit testing the software modules before integration. ie Cmocka or Ceedling

* A graphical state machine design tool. Useful for generating application code. ie MathLab's Simulink tool.

* many more.

It all depends on what industry you are working in, how much money you have and how many engineers is in your team working on the project.