This is the simplest but also least useful way to build packages for yocto. By default, ther e is no toolchain installed in the image.

To add the toolchain to an image, append tools-sdk to CORE_IMAGE_INSTALL.

CORE_IMAGE_INSTALL_append  = " tools-sdk"

Note that this will significantly increase image size and build time.

run this command to generate a cross development SDK:

bitbake <image name> -c poulate_sdk
# for example:
bitbake ntb-prod-image -c pouplate_sdk

This will generate a toolchain with a sysroot containing all header/libraries/… included in the image. By default the SDK is in build/tmp/deploy/sdk/.

Live Coding with Yocto Project #4: SDKs