30 lines
1.2 KiB
Markdown
30 lines
1.2 KiB
Markdown
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# Glossary
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Term|Definition
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BitBake, Poky|Build system
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Layer|A folder containing configuration files related to one system (starts with `meta-`)
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Task|A set of functions/commands to do something. Can be written in shell or python.
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Recipe (`.bb`)|A set of tasks to download, build and package a software
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Append Files (`.bbappend`)|Files appended to existing recipes
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Classes|Configuration fragments priving tools to be included in recipes
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Package|A built recipe prepared as an installable package (.deb)
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Image|The final file for your distribution, generally a disk image (iso, hddimg, etc...)
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[More...](http://www.yoctoproject.org/docs/1.8/dev-manual/dev-manual.html#yocto-project-terms)
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# Variables
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These variables __are not used by Yocto__. They are used in this book for convenience.
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Variable|Value|More
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---|---|---:
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`$POKY`|Path to cloned poky directory.|[More](env.md#yocto-setup)
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`$LAYER`|Path to your custom layer|[More](../2-usage/layercreate.md#manual-creation)
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`$DISTRO`|The distribution you are building (ex: `poky-tiny`)|[More](../2-usage/distrocreate.md)
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`$MACHINE`|The machine you are building for (ex: `genericx86`)|[More](../2-usage/machinecreate.md)
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`$IMAGE`|The image you are building (ex: `core-image-minimal`)|[More](../2-usage/imagecreate.md)
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