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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

Guidelines to follow for Yocto Project

This section aims to gather some guidelines for aspects of the Yocto Project metadata and project organization tips that make our life easier in terms of short- and long-term maintenance.

Managing layers

As our journey in product development advances, we will naturally use multiple repositories to meet the needs we face. Keeping track of the repositories is a complex challenge as we need to do the following:

  • Make sure we can reproduce a previous build in the future
  • Allow multiple team members to work in the same code base
  • Validate the changes we make using Continuous Integration tools
  • Avoid subtle changes in the layers we use

Those goals are intimidating, but a few tools are in use, with different strategies to overcome those challenges.

The simplest solution uses the image-buildinfo class (https://docs.yoctoproject.org/4.0.4/ref-manual/classes.html#image-buildinfo-bbclass), which writes a plain text file containing...

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