Debugging with DPG - Lecture Notes

Introduction

• Speaker: Jose
• Focus: Online debugging session using DPG (Debugger for Windows)
• Acknowledgment of the support from the community during the session.

Setup for Debugging

• Installation of DPG:
  • Navigate to the store for installation.
  • Recommended for Windows versions higher than 7003.
  • DPG is favored over older debugging software due to better user interface.
• Windows 10 SDK:
  • Necessary for avoiding errors during debugging.
  • Important to install the SDK prior to debugging.

Programming Basics

• C Language Overview:
  • C is a compiled language requiring a main function as an entry point.
  • Difference between compiled languages (C, C++) and interpreted languages (Python, JavaScript).
  • Explanation of infinite loops using for and while constructs.

Debugging Process

• Development of a simple C program:

  • Use #include <stdio.h> to include standard functions.
  • Demonstration of creating an infinite loop and using system() function to execute commands like whoami.

• Debugging Techniques:

  • Use of DPG to analyze running processes.
  • Setting breakpoints to examine program behavior at specific points.

Working with Threads

• Explanation of threads during debugging:
  • Switching between threads in DPG to observe their stack and state.
  • Understanding how breakpoints are triggered on specific threads.

Observations and Troubleshooting

• Issues faced with certain commands not executing as expected.
  • Example: whoami command not being executed correctly.
  • Discussion of potential causes, including environment issues or command line settings.

Importance of Learning

• Emphasis on learning multiple programming languages to understand their strengths and weaknesses.
  • Benefits of being versatile in coding for different applications.
  • Importance of understanding how code works at a low level.

Conclusion

• Recap of learned skills during the debugging session.
• Encouragement for viewers to engage in debugging practice to improve their programming skills.
• Future sessions to build upon this knowledge and tackle more complex debugging tasks.