Browse Library
Sign In Start Free Trial
Close icon Search icon
Account
Browse Library Advanced Search Sign In Start Free Trial

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying Embedded Linux Development with Yocto Project
  • Table Of Contents Toc
  • Feedback & Rating feedback
Embedded Linux Development with Yocto Project

Embedded Linux Development with Yocto Project

By : Otavio Salvador
3.9 (20)
Buy this Book
close
close
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)
close
close
close
Preface
Icon
Preface
Icon
What this book covers
Icon
What you need for this book
Icon
Who this book is for
Icon
Conventions
Icon
Reader feedback
Icon
Customer support
Free Chapter
1
1. Meeting the Yocto Project
Icon
1. Meeting the Yocto Project
Icon
What is the Yocto Project?
Icon
Delineating the Yocto Project
Icon
Understanding Poky
Icon
The alliance of OpenEmbedded Project and Yocto Project
Icon
Summary
2
2. Baking Our Poky-based System
Icon
2. Baking Our Poky-based System
Icon
Configuring a host system
Icon
Downloading the Poky source code
Icon
Preparing the build environment
Icon
Knowing the local.conf file
Icon
Building a target image
Icon
Running images in QEMU
Icon
Summary
3
3. Using Hob to Bake an Image
Icon
3. Using Hob to Bake an Image
Icon
Building an image using Hob
Icon
Customizing an image with Hob
Icon
Summary
4
4. Grasping the BitBake Tool
Icon
4. Grasping the BitBake Tool
Icon
Understanding the BitBake tool
Icon
Exploring metadata
Icon
Parsing metadata
Icon
Dependencies
Icon
Preferring and providing recipes
Icon
Fetching the source code
Icon
Understanding BitBake's tasks
Icon
Generating a root filesystem image
Icon
Summary
5
5. Detailing the Temporary Build Directory
chevron up
Icon
5. Detailing the Temporary Build Directory
Icon
Detailing the build directory
Icon
Constructing the build directory
Icon
Exploring the temporary build directory
Icon
Understanding the work directory
Icon
Understanding the sysroot directories
Icon
Summary
6
6. Assimilating Packaging Support
Icon
6. Assimilating Packaging Support
Icon
Using supported package formats
Icon
Understanding shared state cache
Icon
Explaining package versioning
Icon
Package feeds
Icon
Summary
7
7. Diving into BitBake Metadata
Icon
7. Diving into BitBake Metadata
Icon
Using metadata
Icon
Working with metadata
Icon
Summary
8
8. Developing with the Yocto Project
Icon
8. Developing with the Yocto Project
Icon
Deciphering the software development kit
Icon
Working with the Poky SDK
Icon
Developing applications on the target
Icon
Integrating with Eclipse
Icon
Summary
9
9. Debugging with the Yocto Project
Icon
9. Debugging with the Yocto Project
Icon
Differentiating metadata and application debugging
Icon
Tracking image, package, and SDK contents
Icon
Debugging packaging
Icon
Logging information during task execution
Icon
Utilizing a development shell
Icon
Using the GNU Project Debugger for debugging
Icon
Summary
10
10. Exploring External Layers
Icon
10. Exploring External Layers
Icon
Powering flexibility with layers
Icon
Detailing the layer's source code
Icon
Adding meta layers
Icon
Summary
11
11. Creating Custom Layers
Icon
11. Creating Custom Layers
Icon
Making a new layer
Icon
Adding metadata to the layer
Icon
Creating an image
Icon
Adding a package recipe
Icon
Writing a machine definition
Icon
Using a custom distribution
Icon
Machine features versus distro features
Icon
Understanding the variables scope
Icon
Summary
12
12. Customizing Existing Recipes
Icon
12. Customizing Existing Recipes
Icon
Common use cases
Icon
Adding extra options to recipes based on Autoconf
Icon
Applying a patch
Icon
Adding extra files to the existing packages
Icon
Changing recipe feature configuration
Icon
Customizing BusyBox
Icon
Customizing the linux-yocto framework
Icon
Summary
13
13. Achieving GPL Compliance
Icon
13. Achieving GPL Compliance
Icon
Understanding copyleft
Icon
Managing software licensing with Poky
Icon
Using Poky to achieve copyleft compliance
Icon
Summary
14
14. Booting Our Custom Embedded Linux
Icon
14. Booting Our Custom Embedded Linux
Icon
Exploring the Wandboard
Icon
Discovering Freescale ARM BSP
Icon
Using Wandboard with the Yocto Project
Icon
Building an image for Wandboard
Icon
Booting Wandboard from the SD card
Icon
Summary
15
A. References
Icon
A. References
16
Index
Icon
Index

Detailing the build directory

The build directory is a central information and artifact source for every Yocto Project's tool user. Its main directories are the following:

  • conf: This has the configuration files we use to control Poky and BitBake. The first use of this directory was in Chapter 2, Baking Our Poky-based System. It stores configuration files such as build/conf/local.conf and build/conf/bblayers.conf.

  • downloads: This stores the downloaded tarballs. It can be seen as the download cache and has been detailed in Chapter 4, Grasping the BitBake Tool.

  • sstate-cache: This has the packaged data snapshots. It is a cache mainly used to speed up the build process. This folder is detailed in Chapter 6, Assimilating Packaging Support.

  • tmp: This is a temporary build directory. It is very handy; we will understand it better in the following sections.

Unlock full access

Continue reading for free

A Packt free trial gives you instant online access to our library of over 7000 practical eBooks and videos, constantly updated with the latest in tech
Start a 7-day FREE trial
End of Section 4
Next Section

Create a Note

Modal Close icon
You need to login to use this feature.
notes
bookmark search playlist font-size

Change the font size

margin-width

Change margin width

day-mode

Change background colour

Close icon Search
Country selected
Close icon Your notes and bookmarks

Delete Bookmark

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete

Delete Note

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete

Edit Note

Modal Close icon
Write a note (max 255 characters)
Cancel
Update Note

Confirmation

Modal Close icon
claim successful
Order Page Read Now

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY