Add a debug banner in a Yocto recipe

Add a debug banner in a Yocto recipe

Sometime you may need to understand if your recipe is taken into account by bitbake.

Adding the following code at the end of your recipe may help you to verify that the build is doing what you expected:

python do_display_banner() {
   bb.plain("********************************************");
   bb.plain("*  This is a message tracing bitbake work  *");
   bb.plain("********************************************");
}

addtask display_banner before do_build