Embedded Software Tips

One useful debugging tool is the development shell.

When invoked this command will unpack and patch the source and open a terminal.

The command format is:

bitbake -c devshell <package_recipe>

Example: bitbake -c devshell busybox

Inside this new terminal (‘devshell’) we have a full development environment where we can execute commands.

Some useful bitbake commands to print package recipe’s variables:

a) Print source directory for a package recipe:

bitbake -e <package_recipe> | grep ^S=

b) Print working directory for a package recipe:

bitbake -e <package_recipe> | grep ^WORKDIR=

 

 

Some useful Yocto commands:

a) List image’s to bake:

bitbake-layers show-recipes “*-image-*”

b) List recipes used in Image:

bitbake-layers show-recipes

c) Clean all recipe´s artifact before doing a new build:

bitbake <recipe_name>  -c cleanall