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Embedded Linux Development using Yocto Projects - Second Edition

You're reading from  Embedded Linux Development using Yocto Projects - Second Edition

Product type Book
Published in Nov 2017
Publisher
ISBN-13 9781788470469
Pages 162 pages
Edition 2nd Edition
Languages
Authors (2):
Otavio Salvador Otavio Salvador
Profile icon Otavio Salvador
Daiane Angolini Daiane Angolini
Profile icon Daiane Angolini
View More author details
Toc

Table of Contents (22) Chapters close

Title Page
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
1. Meeting the Yocto Project 2. Baking Our Poky-Based System 3. Using Toaster to Bake an Image 4. Grasping the BitBake Tool 5. Detailing the Temporary Build Directory 6. Assimilating Packaging Support 7. Diving into BitBake Metadata 8. Developing with the Yocto Project 9. Debugging with the Yocto Project 10. Exploring External Layers 11. Creating Custom Layers 12. Customizing Existing Recipes 13. Achieving GPL Compliance 14. Booting Our Custom Embedded Linux Index

Adding extra options to recipes based on Autoconf


Let's assume we have Autoconf's build system-based application, along with a preexisting recipe for it, and we want to do the following:

  • Enable my-feature
  • Disable another-feature

The content of the .bbappend file, in order to make the changes, will be the following:

EXTRA_OECONF += "--enable-my-feature --disable-another-feature"
EXTRA_OEMAKE += "DEFINE_PASSED_TO_MAKE=1"

This can also be done based on the hardware we are building for, as follows:

EXTRA_OECONF_append_arm = " --enable-my-arm-feature"
EXTRA_OEMAKE_append_mymachine = " MYMACHINE_SPECIFIC=1"

Note

EXTRA_OECONF is used to add extra options to the configuration script.EXTRA_OEMAKE is used to add extra parameters to the make call.

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