Linux Operating System Services
In Chapter 1, “Getting Started,” we needed the ability to exit our program and to display a string. We used Raspbian Linux to do this, invoking operating system services directly. In all high-level programming languages, there is a runtime library that includes wrappers for calling the operating system. This makes it appear that these services are part of the high-level language. In this chapter, we’ll be looking at what these runtime libraries do under the covers to call Linux and what services are available to us.