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  • Book Overview & Buying Embedded Linux Development with Yocto Project
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Embedded Linux Development with Yocto Project

Embedded Linux Development with Yocto Project

By : Otavio Salvador
3.9 (20)
Buy this Book
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Embedded Linux Development with Yocto Project

Embedded Linux Development with Yocto Project

3.9 (20)
By: Otavio Salvador
Buy this Book

Overview of this book

A practical tutorial guide which introduces you to the basics of Yocto Project, and also helps you with its real hardware use to boost your Embedded Linux-based project. If you are an embedded systems enthusiast and willing to learn about compelling features offered by the Yocto Project, then this book is for you. With prior experience in the embedded Linux domain, you can make the most of this book to efficiently create custom Linux-based systems.
Table of Contents (17 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
Free Chapter
1
1. Meeting the Yocto Project
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1. Meeting the Yocto Project
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What is the Yocto Project?
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Delineating the Yocto Project
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Understanding Poky
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The alliance of OpenEmbedded Project and Yocto Project
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Summary
2
2. Baking Our Poky-based System
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2. Baking Our Poky-based System
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Configuring a host system
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Downloading the Poky source code
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Preparing the build environment
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Knowing the local.conf file
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Building a target image
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Running images in QEMU
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Summary
3
3. Using Hob to Bake an Image
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3. Using Hob to Bake an Image
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Building an image using Hob
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Customizing an image with Hob
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Summary
4
4. Grasping the BitBake Tool
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4. Grasping the BitBake Tool
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Understanding the BitBake tool
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Exploring metadata
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Parsing metadata
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Dependencies
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Preferring and providing recipes
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Fetching the source code
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Understanding BitBake's tasks
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Generating a root filesystem image
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Summary
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5. Detailing the Temporary Build Directory
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5. Detailing the Temporary Build Directory
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Detailing the build directory
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Constructing the build directory
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Exploring the temporary build directory
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Understanding the work directory
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Understanding the sysroot directories
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Summary
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6. Assimilating Packaging Support
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6. Assimilating Packaging Support
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Using supported package formats
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Understanding shared state cache
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Explaining package versioning
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Package feeds
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Summary
7
7. Diving into BitBake Metadata
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7. Diving into BitBake Metadata
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Using metadata
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Working with metadata
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Summary
8
8. Developing with the Yocto Project
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8. Developing with the Yocto Project
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Deciphering the software development kit
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Working with the Poky SDK
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Developing applications on the target
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Integrating with Eclipse
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Summary
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9. Debugging with the Yocto Project
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9. Debugging with the Yocto Project
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Differentiating metadata and application debugging
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Tracking image, package, and SDK contents
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Debugging packaging
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Logging information during task execution
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Utilizing a development shell
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Using the GNU Project Debugger for debugging
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Summary
10
10. Exploring External Layers
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10. Exploring External Layers
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Powering flexibility with layers
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Detailing the layer's source code
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Adding meta layers
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Summary
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11. Creating Custom Layers
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11. Creating Custom Layers
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Making a new layer
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Adding metadata to the layer
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Creating an image
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Adding a package recipe
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Writing a machine definition
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Using a custom distribution
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Machine features versus distro features
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Understanding the variables scope
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Summary
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12. Customizing Existing Recipes
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12. Customizing Existing Recipes
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Common use cases
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Adding extra options to recipes based on Autoconf
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Applying a patch
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Adding extra files to the existing packages
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Changing recipe feature configuration
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Customizing BusyBox
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Customizing the linux-yocto framework
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Summary
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13. Achieving GPL Compliance
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13. Achieving GPL Compliance
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Understanding copyleft
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Managing software licensing with Poky
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Using Poky to achieve copyleft compliance
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Summary
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14. Booting Our Custom Embedded Linux
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14. Booting Our Custom Embedded Linux
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Exploring the Wandboard
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Discovering Freescale ARM BSP
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Using Wandboard with the Yocto Project
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Building an image for Wandboard
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Booting Wandboard from the SD card
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Summary
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A. References
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A. References
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Index
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Index

Summary

In this final chapter, we introduced two community projects, Wandboard and Freescale ARM BSP layers. We consolidated our Yocto Project knowledge by adding external BSP layers and using these in a real board with a generated image.

Throughout the book, we learned the needed background information for you to learn on your own any other aspect of the Yocto Project that you may need. You have the general understanding to know what is happening behind the scenes when you ask BitBake to build a recipe or an image. From now on, you are ready to free your mind and try new things. There are plenty of boards available, waiting for you to give them life. The ball is in your court now; here's where the fun begins!

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