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ac6 >> ac6-training >> Online Training >> Linux >> Yocto Project Expert Download Catalog Download as PDF Write us Printable version

oY2 Yocto Project Expert

Advanced Yocto Project usage and adaptation

Advanced Yocto Project usage and adaptation
formateur
Objectives
  • Using Yocto to develop components
  • Customizing the BSP
  • Building out of tree modules
  • Setup Source cache
Labs are conducted QEMU ARM-based board
We use a recent version of Yocto
Prerequisite
Course environment
  • Theoretical course:
    • PDF course material (in English)
    • Course dispensed using the Teams video-conferencing system
    • The trainer to answer trainees’ questions during the training and provide technical and pedagogical assistance through the Teams video-conferencing system
    • Quizzes are used to check trainee’s assimilation of course content
  • Practical activities :
    • Practical activities represent from 40% to 50% of course duration
    • One Online Linux PC per trainee for the practical activities
    • The trainer has access to trainees’ Online PCs for technical and pedagogical assistance.
  • Downloadable preconfigured virtual machine for post-course practical activities.
Duration
  • Total: 12 hours
  • 2 sessions, 6 hours +/- 30 min each (excluding break time)
  • From 50% to 60% of training time is devoted to practical activities
  • Some Labs may be completed between sessions and are checked by the trainer on the next session

First Session
Development process using the extensible SDK and devtool
  • Using devtool to create a package and its recipe
  • Using devtool to modify an existing package and recipe
  • Using devtool to update a recipe to build a new version of a package
Exercise:  Create, test and modify a recipe for an existing package using devtool
Develop and debug applications using SDK and eclipse
  • Adding eclipse remote debug packages
  • Configuring eclipse
Exercise:  Create remote debugging session using eclipse
Writing tasks in python
  • Introduction to python
  • Using python in Yocto
    • The main bitbake classes
    • Defining variable values in Python
    • Writing tasks in Python
Exercise:  Writing a task and customizing a recipe in Python
Porting Yocto
  • Porting Yocto to a new board
  • BSP architecture
    • Selecting and configuring u-boot recipe
    • Selecting and configuring kernel recipe
  • Adding a new BSP layer (yocto-bsp create)
Exercise:  Creating a new BSP layer
Second Session
BSP Development
  • Adding a custom u-boot to Yocto
  • Customizing the Yocto kernel recipe
    • Setting the default configuration
    • Adding patches
    • Specifying the kernel sources
  • Configuring Linux Kernel
    • Using menuconfig
    • Using patches
    • Creating Configuration Fragments
    • Validating Configuration
  • Kernel device tree
Exercise:  Create u-boot and kernel recipes to use custom versions, test the result
Exercise:  Patch kernel and activate new options using a fragment
Exercise:  Create and use a new device tree
Out-of-Tree Modules
  • Adding modules to image
  • Creating an out-of-tree module
  • Kernel modules with eSDK
Exercise:  Build and test modules
Tailoring the build system
  • Setting up a Yocto source cache
    • Local, per system, cache setup
    • Setting up a global, network wide, cache
  • Customizing the build system
    • Using a prebuilt toolchain
    • Using a pre-compiled kernel
  • Optimizing Yocto build times
    • Using prebuilt, binary, packages
    • Using shared compilation caches
Exercise:  Setting up a global source cache
Exercise:  Setting up an optimized build environment and rebuilding an image