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Embedded Linux Projects Using Yocto Project Cookbook

You're reading from   Embedded Linux Projects Using Yocto Project Cookbook Over 70 hands-on recipes for professional embedded Linux developers to optimize and boost their Yocto know-how

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Product type Paperback
Published in Mar 2015
Publisher
ISBN-13 9781784395186
Length 324 pages
Edition 1st Edition
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Author (1):
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Alex Gonzalez Alex Gonzalez
Author Profile Icon Alex Gonzalez
Alex Gonzalez
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Toc

Table of Contents (7) Chapters Close

Preface 1. The Build System 2. The BSP Layer FREE CHAPTER 3. The Software Layer 4. Application Development 5. Debugging, Tracing, and Profiling Index

Building the Linux kernel


In this recipe, we will go through the development workflows described earlier using the Linux kernel as an example.

How to do it...

We will see how the following development workflows are applied to the Linux kernel:

  • External development

  • Working directory development

  • External source development

How it works...

Let's explain the three methodologies listed previously in detail.

External development

When compiling outside of the Yocto build environment, we can still use the Yocto-provided toolchain to build. The process is as follows:

  1. We will use the Yocto project cross-compilation toolchain already installed in your host.

  2. Clone the wandboard-org linux-wandboard repository locally:

    $ cd /opt/yocto
    $ git clone https://github.com/wandboard-org/linux.git linux-wandboard
    $ cd linux-wandboard
    
  3. Go to the branch specified in the linux-wandboard_3.10.17.bb recipe:

    $ git checkout -b wandboard_imx_3.10.17_1.0.2_ga origin/wandboard_imx_3.10.17_1.0.2_ga
    
  4. Compile the kernel source as follows...

You have been reading a chapter from
Embedded Linux Projects Using Yocto Project Cookbook
Published in: Mar 2015
Publisher:
ISBN-13: 9781784395186
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