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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
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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 work directory

The build/tmp/work directory is organized by architecture. For example, when working with the qemux86-64 machine, we have the following four directories:

Figure 6.2 – The contents of the build/tmp/work directory

Figure 6.2 – The contents of the build/tmp/work directory

Figure 6.2 shows an example of possible directories under build/tmp/work for an x86-64 host and a qemux86-64 target. They are architecture- and machine-dependent, as follows:

  • all-poky-linux: This directory contains the working build directories for the architecture-agnostic packages. These are mostly scripts or interpreted language-based packages, for example, Perl scripts and Python scripts.
  • core2-64-poky-linux: This directory contains the working build directories for the packages common to x86-64-based targets using the optimization tuned for core2-64.
  • qemux86_64-poky-linux: This directory contains the working build directories for packages specific to the qemux86-64 machine.
  • x86_64...
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