Sonni: Create How to create a custom recipe page

2025-03-26T03:18:19Z

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=About=
This document shows how to create a custom Yocto recipe, a .bb file (bitbake file), from scratch. <br>
If you want to create a custom Yocto recipe automatically, see [[How to create a custom yocto meta layer|Create custom yocto meta layer]] page under '''Create layer via bitbake'''.

=Create a custom Yocto recipe=
Follow these steps to create a custom Yocto recipe.

==Step 1. Setup Yocto Environemnt==
Make sure to setup Yocto first.
<syntaxhighlight lang="bash">
cd <your yocto folder>
source oe-init-build-env <your build directory>
</syntaxhighlight>
After setting up Yocto, you can add your own custom layer. To create a custom layer, see [[How to create a custom yocto meta layer|Create custom yocto meta layer]] page.

==Step 2. Create the recipe==
After setting up Yocto, you can now create a custom recipe.
<syntaxhighlight lang="bash">
cd <layer folder>
#If you want to create a new recipe folder
mkdir <recipe folder name>
#e.g. mkdir recipe-software
#If you want to create a recipe in an existing folder
cd <recipe folder name>
#create the recipe
touch proventusNova_1.0.bb
</syntaxhighlight>
After creating the .bb file, we can now edit the recipe. <br>
You can use your preferred text editor to edit the file. Below is an example of what a recipe may contain.
<syntaxhighlight lang="bash">
DESCRIPTION = "ProventusNova Recipe"
LICENSE = "CLOSED"
SRC_URI = "file://helloworld.c"

inherit core-image

IMAGE_FEATURES += "ssh-server-openssh debug-tweaks"

CORE_IMAGE_BASE_INSTALL += "systemd"
TOOLCHAIN_HOST_TASK += "nativesdk-packagegroup-cuda-sdk-host"

inherit nopackages

do_install() {
install -d ${D}${bindir}
install -m 0755 <application> ${D}${bindir}/
}

do_compile() {
${CC} helloworld.c -o helloworld
}
</syntaxhighlight>

==Step 3. Test the recipe==
After creating the recipe, test the recipe by running the command:
<syntaxhighlight lang="bash">
bitbake -c fetch proventusNova
</syntaxhighlight>
This tests the recipe if the files are downloaded correctly.

==Step 4. Build the recipe==
To build the recipe, run the command:
<syntaxhighlight lang="bash">
bitbake proventusNova
</syntaxhighlight>

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Sonni: Create How to create a custom recipe page