What is GNU Debugger? - GDB Debugger

What is GNU Debugger?

A debugger is a program that runs previous programs, allowing the user to implement control over these programs, and to inspect variables when problems begin.

GNU Debugger, which is also called gab, is the most accepted debugger for UNIX system to debug C and C++ programs.

GNU Debugger helps you in getting in order about the following:

  • If a core dump happened, then what statement or phrase did the program crash on?
  • If an error occurs while executing a function, what line of the program contains the call to that function, and what are the parameters?
  • What are the values of program variables at a particular point during execution of the program?
  • What is the result of a particular expression in a program?

How GDB Debugs?

GDB allow you to run the program up to a confident point, and then stop and print out the principles of certain variables at that point, or step during the program one line at a time and print out the standards of each variable after execute each line.

GDB uses an easy command line interface.

Points to Note

  • Even though GDB can help you in finding out memory leakage related bugs, but it is not a tool to notice memory leakages.
  • GDB cannot be used for programs that compile with errors and it does not help in fixing those errors.

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