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BitBake is the task executor and scheduler used by the OpenEmbedded build system to build images. BitBake is a generic task execution engine that allows shell and Python tasks to be run efficiently and in parallel while working within complex inter-task dependency constraints. BitBake stores the output of each task in a directory, the shared state cache. Its location is controlled by the SSTATE_DIR variable. This cache is use to speed up compilation.

Usage:

bitbake

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[options]

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[recipename/target

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Bitbake executes all the layers starting with a prefix ‘meta’.

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