Debugging is the process of identifying and removing errors from software systems. The GNU/Linux operating system has a standard de facto tool (that is, not part of any standard, but used by almost anybody in the Linux world) called GDB. The GDB version installed on this book's Docker is version 8.2.91. Of course, there are graphical tools that can use GDB under the hood, but GDB on Linux is the way to go for its reliability, simplicity, and speed. In this recipe, we will debug the software we've written in the previous recipe.
Using GDB to debug a program
How to do it...
In order to use some of the GDB commands, we need to modify the previous program and add some variables in it:
- Open a shell and modify the hello...
