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dev-manual: Updated the "Creating Your Own Layer" section.

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Added information to the list of variables used in the
layer.conf file to specify LAYERSERIES_COMPAT.

(From yocto-docs rev: c41ff41e75b654d5d7df8c2a1e83ba5525490285)

Signed-off-by: Scott Rifenbark <srifenbark@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Scott Rifenbark
2018-03-23 14:05:02 -07:00
committed by Richard Purdie
parent feeb4592b7
commit d6a396b594
1 changed files with 15 additions and 9 deletions
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24
documentation/dev-manual/dev-manual-common-tasks.xml
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@@ -147,30 +147,30 @@
</para></listitem>
<listitem><para>
The recipes for the layers are appended to
<filename><ulink url='&YOCTO_DOCS_REF_URL;#var-BBFILES'>BBFILES</ulink></filename>.
<ulink url='&YOCTO_DOCS_REF_URL;#var-BBFILES'><filename>BBFILES</filename></ulink>.
</para></listitem>
<listitem><para>
The
<filename><ulink url='&YOCTO_DOCS_REF_URL;#var-BBFILE_COLLECTIONS'>BBFILE_COLLECTIONS</ulink></filename>
<ulink url='&YOCTO_DOCS_REF_URL;#var-BBFILE_COLLECTIONS'><filename>BBFILE_COLLECTIONS</filename></ulink>
variable is appended with the layer's root name,
which is "yoctobsp" in this example.
</para></listitem>
<listitem><para>
The
<filename><ulink url='&YOCTO_DOCS_REF_URL;#var-BBFILE_PATTERN'>BBFILE_PATTERN</ulink></filename>
<ulink url='&YOCTO_DOCS_REF_URL;#var-BBFILE_PATTERN'><filename>BBFILE_PATTERN</filename></ulink>
variable is set to a regular expression and is
used to match files from
<filename>BBFILES</filename> into a particular
layer.
In this case,
<filename><ulink url='&YOCTO_DOCS_REF_URL;#var-LAYERDIR'>LAYERDIR</ulink></filename>
<ulink url='&YOCTO_DOCS_REF_URL;#var-LAYERDIR'><filename>LAYERDIR</filename></ulink>
is used to make
<filename>BBFILE_PATTERN</filename> match
within the layer's path.
</para></listitem>
<listitem><para>
The
<filename><ulink url='&YOCTO_DOCS_REF_URL;#var-BBFILE_PRIORITY'>BBFILE_PRIORITY</ulink></filename>
<ulink url='&YOCTO_DOCS_REF_URL;#var-BBFILE_PRIORITY'><filename>BBFILE_PRIORITY</filename></ulink>
variable assigns a priority to the layer.
Applying priorities is useful in situations
where the same recipe might appear in multiple
@@ -180,15 +180,21 @@
</para></listitem>
<listitem><para>
The
<filename><ulink url='&YOCTO_DOCS_REF_URL;#var-LAYERVERSION'>LAYERVERSION</ulink></filename>
<ulink url='&YOCTO_DOCS_REF_URL;#var-LAYERDIR'><filename>LAYERDIR</filename></ulink>
variable expands to the directory of the
current layer
</para></listitem>
<listitem><para>
The
<ulink url='&YOCTO_DOCS_REF_URL;#var-LAYERVERSION'><filename>LAYERVERSION</filename></ulink>
variable optionally specifies the version of a
layer as a single number.
</para></listitem>
<listitem><para>
The
<filename><ulink url='&YOCTO_DOCS_REF_URL;#var-LAYERDIR'>LAYERDIR</ulink></filename>
variable expands to the directory of the
current layer
<ulink url='&YOCTO_DOCS_REF_URL;#var-LAYERSERIES_COMPAT'><filename>LAYERSERIES_COMPAT</filename></ulink>
lists the Yocto Project releases for which the
layer is compatible.
</para></listitem>
</itemizedlist></para>