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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

Debugging packaging

In more sophisticated recipes, we split the installed contents into several sub-packages. The sub-packages can be optional features, modules, or any other set of files that is optional to install.

To inspect how the recipe’s content has been split, we can use the build/tmp/work/<arch>/<recipe name>/<software version>/packages-split directory. It contains a sub-directory for every sub-package and has its contents in the sub-tree.

Among the possible reasons for a mistaken content split, we have defined the following:

  • The contents not being installed (for example, an error in installation scripts)
  • An application or library configuration error (for example, a disabled feature)
  • Metadata errors (for example, the wrong package order)

Another common issue for build failure is lacking the required artifacts in the sysroot directory (for example, headers or dynamic libraries). The counterpart of the sysroot generation...

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