Debugging, Disassembly & Reversing in Linux for x64 Architecture/

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Local Variables

Local Variables

Learn how local variables work in functions.

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Local variables project

Let’s learn more about local variables with a project.

Source code

The source code of the local variables project is given below:

C++
int main()
{
	int a, b;
	a = 1;
	b = 1;
	b = b + a;
	++a;
	b = b * a;
	return 0;
}

Compilation and execution of code

We compile the file and load the executable into GDB:

gcc LocalVariables.cpp -o LocalVariables
gdb ./LocalVariables

The output after loading the executable file:

Then we put a breakpoint to the main:

break main

The breakpoint ...