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==== OpenEmbedded Recipes ====
== OpenEmbedded Recipes ==


This is my log of trying to understand what each element of a .bb file is.
This is my log of trying to understand what each element of a .bb file is.


=== linux recipes ===
== linux recipes ==


== Definitions ==
=== Definitions ===


<code>SECTION</code> - Top level package section. base, kernel, libs, x11, x11/utils.  This appears to be similar to a bbclass. How is this used?
<code>SECTION</code> - Top level package section. base, kernel, libs, x11, x11/utils.  This appears to be similar to a bbclass. How is this used?


'DESCRIPTION' - Description of package to be built.  I assume this shows up in the ipkg meta data.
<code>DESCRIPTION</code> - Description of package to be built.  I assume this shows up in the ipkg meta data.


'LICENSE' - GPL or other.  How is this used?
<code>LICENSE</code> - GPL or other.  How is this used?


'DEPENDS' - This package cannot be built/recipe not baked until the packages/recipes listed in DEPENDS have been built/baked.
<code>DEPENDS</code> - This package cannot be built/recipe not baked until the packages/recipes listed in DEPENDS have been built/baked.


'PR - How is this used?
<code>PR</code> - How is this used?


'DEFAULT_PREFERENCE' - How is this used?
<code>DEFAULT_PREFERENCE</code> - How is this used?
 
<code>COMPATIBLE_MACHINE</code> - A machine as described in local.conf and with an appropriate config file in OE/conf/machine.  How is this used?
 
<code>SRC_URI</code> - Some [http://bitbake.berlios.de/manual/ch03.html documentation available at berlios.de].
 
<code>S</code> - Source directory, I think.
 
<code>FILES_kernel-image</code> - The complete path of the final kernel-image in the destination filesystem.
 
<code>OS</code> - How is this used?
 
<code>ARCH</code> - How is this used?
 
<code>KERNEL_IMAGETYPE</code> - Filename of the image to be built. The exact name is dependent on the architecture. Could be one of the following.
* vmlinux
* image
* uImage
* bzImage
* zImage
* zImage.flash
 
<code>KERNEL_OUTPUT</code> - Where in the kernel build tree is the final image.
 
<code>COMPATIBLE_HOST</code> - How is this used?
 
=== Functions ===
 
<code>do_configure()</code> - Runs before X and after Y.  In the case of building a kernel

Latest revision as of 15:21, 23 December 2008

OpenEmbedded Recipes

This is my log of trying to understand what each element of a .bb file is.

linux recipes

Definitions

SECTION - Top level package section. base, kernel, libs, x11, x11/utils. This appears to be similar to a bbclass. How is this used?

DESCRIPTION - Description of package to be built. I assume this shows up in the ipkg meta data.

LICENSE - GPL or other. How is this used?

DEPENDS - This package cannot be built/recipe not baked until the packages/recipes listed in DEPENDS have been built/baked.

PR - How is this used?

DEFAULT_PREFERENCE - How is this used?

COMPATIBLE_MACHINE - A machine as described in local.conf and with an appropriate config file in OE/conf/machine. How is this used?

SRC_URI - Some documentation available at berlios.de.

S - Source directory, I think.

FILES_kernel-image - The complete path of the final kernel-image in the destination filesystem.

OS - How is this used?

ARCH - How is this used?

KERNEL_IMAGETYPE - Filename of the image to be built. The exact name is dependent on the architecture. Could be one of the following.

  • vmlinux
  • image
  • uImage
  • bzImage
  • zImage
  • zImage.flash

KERNEL_OUTPUT - Where in the kernel build tree is the final image.

COMPATIBLE_HOST - How is this used?

Functions

do_configure() - Runs before X and after Y. In the case of building a kernel