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Embedded Linux Development Using Yocto Project

You're reading from   Embedded Linux Development Using Yocto Project Leverage the power of the Yocto Project to build efficient Linux-based products

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Product type Paperback
Published in Apr 2023
Publisher Packt
ISBN-13 9781804615065
Length 196 pages
Edition 3rd Edition
Tools
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Authors (2):
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Otavio Salvador Otavio Salvador
Author Profile Icon Otavio Salvador
Otavio Salvador
Daiane Angolini Daiane Angolini
Author Profile Icon Daiane Angolini
Daiane Angolini
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Toc

Table of Contents (20) Chapters Close

Preface 1. Chapter 1: Meeting the Yocto Project 2. Chapter 2: Baking Our First Poky-Based System FREE CHAPTER 3. Chapter 3: Using Toaster to Bake an Image 4. Chapter 4: Meeting the BitBake Tool 5. Chapter 5: Grasping the BitBake Tool 6. Chapter 6: Detailing the Temporary Build Directory 7. Chapter 7: Assimilating Packaging Support 8. Chapter 8: Diving into BitBake Metadata 9. Chapter 9: Developing with the Yocto Project 10. Chapter 10: Debugging with the Yocto Project 11. Chapter 11: Exploring External Layers 12. Chapter 12: Creating Custom Layers 13. Chapter 13: Customizing Existing Recipes 14. Chapter 14: Achieving GPL Compliance 15. Chapter 15: Booting Our Custom Embedded Linux 16. Chapter 16: Speeding Up Product Development through Emulation – QEMU 17. Chapter 17: Best Practices 18. Index 19. Other Books You May Enjoy

Understanding the BitBake tool

The BitBake task scheduler started as a fork from Portage, the package management system used in the Gentoo distribution. However, the two projects diverged significantly due to different use cases. The Yocto Project and the OpenEmbedded Project are intensive users of BitBake. It remains a separate and independent project with its own development cycle and mailing list ([email protected]).

BitBake is a tool similar to GNU Make. As discussed in Chapter 1, Meeting the Yocto Project, BitBake is a task executor and scheduler that parses Python and Shell Script mixed code.

Therefore, BitBake is responsible for running as many tasks as possible in parallel while ensuring they are run respecting their dependencies.

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