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Linux System Programming Techniques

You're reading from Linux System Programming Techniques Become a proficient Linux system programmer using expert recipes and techniques

Product type Paperback

Published in May 2021

Publisher Packt

ISBN-13 9781789951288

Length 432 pages

Edition 1st Edition

Tools

Linux

Concepts

System Programming

Author (1):

Jack-Benny Persson

View More author details

Table of Contents (14) Chapters

Preface

1. Chapter 1: Getting the Necessary Tools and Writing Our First Linux Programs

2. Chapter 2: Making Your Programs Easy to Script FREE CHAPTER

3. Chapter 3: Diving Deep into C in Linux

4. Chapter 4: Handling Errors in Your Programs

5. Chapter 5: Working with File I/O and Filesystem Operations

6. Chapter 6: Spawning Processes and Using Job Control

7. Chapter 7: Using systemd to Handle Your Daemons

8. Chapter 8: Creating Shared Libraries

9. Chapter 9: Terminal I/O and Changing Terminal Behavior

10. Chapter 10: Using Different Kinds of IPC

11. Chapter 11: Using Threads in Your Programs

12. Chapter 12: Debugging Your Programs

13. Other Books You May Enjoy

Starting GDB

In this recipe, we'll learn the basics of GDB, the GNU debugger. We'll learn how to start GDB, how to set a breakpoint, and how to step forward in a program, one step at a time. We'll also learn what debugging symbols are and how we enable them.

GDB is the most popular debugger for Linux and other Unix-like systems. It allows you to examine—and change—variables on the fly, step through instructions one at a time, view the code as the program is running, read return values, and much more.

Knowing how to use a debugger can save you many hours of frustration. Instead of guessing what the problem is with your program, you can follow the execution with GDB and spot the error. This can save you a lot of time.

Getting ready

For this recipe, you'll need the GCC compiler, the Make tool, and the GDB tool. For installation instructions for GDB, see the Technical requirements section of this chapter.

How to do it…

In this...

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Authors (1)

Jack-Benny Persson

Jack-Benny Persson

Jack-Benny Persson is a consultant and author based in Sweden. He has written several books about Linux and programming. His passion for Linux and other Unix-like systems started as a hobby more than 20 years ago. Since then, he has spent most of his spare time reading about Linux, tinkering with Linux servers, and writing about Linux administration. Today he has his own IT and media company in Sweden that focuses on Linux. Jack-Benny holds an Advanced Higher Vocational Education Diploma as a Linux system specialist. He has also studied electronics, networking, and security.

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