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documentation/bsp-guide/bsp.xml: Edits to "Layer Configuration File" section.

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(From yocto-docs rev: 78d36baa57fe9c95bdd39eb63a5bada6a1a5ee64)

Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Scott Rifenbark
2012-02-22 15:12:38 -06:00
committed by Richard Purdie
parent 93ad9b5f00
commit d035bb875f
1 changed files with 17 additions and 6 deletions
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23
documentation/bsp-guide/bsp.xml
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@@ -304,28 +304,39 @@
Project layer, identifies the
contents of the layer, and contains information about how Yocto Project should use it.
Generally, a standard boilerplate file such as the following works.
In the following example you would replace "bsp" and "_bsp" with the actual name
of the BSP (i.e. &lt;bsp_name&gt; from the example template).
In the following example, you would replace "<filename>bsp</filename>" and
"<filename>_bsp</filename>" with the actual name
of the BSP (i.e. <filename>&lt;bsp_name&gt;</filename> from the example template).
</para>
<para>
<literallayout class='monospaced'>
# We have a conf directory, add to BBPATH
# We have a conf and classes directory, add to BBPATH
BBPATH := "${BBPATH}:${LAYERDIR}"
# We have a recipes directory containing .bb and .bbappend files, add to BBFILES
# We have a recipes directory, add to BBFILES
BBFILES := "${BBFILES} ${LAYERDIR}/recipes/*/*.bb \
${LAYERDIR}/recipes/*/*.bbappend"
BBFILE_COLLECTIONS += "bsp"
BBFILE_PATTERN_bsp := "^${LAYERDIR}/"
BBFILE_PRIORITY_bsp = "5"
BBFILE_PRIORITY_bsp = "6"
</literallayout>
</para>
<para>
To illustrate the string substitutions, here are the last three statements from the Crown
Bay <filename>conf/layer.conf</filename> file:
<literallayout class='monospaced'>
BBFILE_COLLECTIONS += "crownbay"
BBFILE_PATTERN_crownbay := "^${LAYERDIR}/"
BBFILE_PRIORITY_crownbay = "6"
</literallayout>
</para>
<para>
This file simply makes BitBake aware of the recipes and configuration directories.
This file must exist so that the Yocto Project build system can recognize the BSP.
The file must exist so that the Yocto Project build system can recognize the BSP.
</para>
</section>