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Embedded Linux Development using Yocto Projects

Embedded Linux Development using Yocto Projects

By : Otavio Salvador, Angolini
3.4 (5)
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Embedded Linux Development using Yocto Projects

Embedded Linux Development using Yocto Projects

3.4 (5)
By: Otavio Salvador, Angolini

Overview of this book

Yocto Project is turning out to be the best integration framework for creating reliable embedded Linux projects. It has the edge over other frameworks because of its features such as less development time and improved reliability and robustness. Embedded Linux Development using Yocto Project starts with an in-depth explanation of all Yocto Project tools, to help you perform different Linux-based tasks. The book then moves on to in-depth explanations of Poky and BitBake. It also includes some practical use cases for building a Linux subsystem project using Yocto Project tools available for embedded Linux. The book also covers topics such as SDK, recipetool, and others. By the end of the book, you will have learned how to generate and run an image for real hardware boards and will have gained hands-on experience at building efficient Linux systems using Yocto Project.
Table of Contents (15 chapters)
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7
Diving into BitBake Metadata

Adding meta layers

There are hundreds of meta layers from the Yocto Project, OpenEmbedded, communities, and companies that should be manually cloned inside the project source directory to be used. We can find them at http://git.yoctoproject.org/ or http://layers.openembedded.org.

In order to include, for example, meta-openembedded in our project, we can change the content of the configuration files or use BitBake command lines. To do so, we need first to fetch the layer's source code. Please run the following command from your Poky source directory:

$ git clone git://git.openembedded.org/meta-openembedded -b rocko

We can now add a new layer by changing the build/conf/bblayer.conf file and adding the absolute path to the new meta layer directory, as shown in the following source code. The highlighted line is the one to be added. The others are the default values for this file...

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