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ref-manual, dev-manual, bsp-guide: Applied Paul Eggleton Build history patch 4 of 5.

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* BBFILES should be appended to with +=

* BBPATH should be appended to with .=

* Immediate expansion is not necessary for BBFILE_PRIORITY

* Immediate expansion is not necessary for references in layer.conf
  to LAYERDIR since these are automatically expanded at the end of
  parsing the file (and have been for some time).

* Add collection name override to BBFILE_PRIORITY example

* Fix comments referring to old structure ("packages directory" or
  "recipes directory")

(From yocto-docs rev: 0aaac8f5ad97c802ebe1d4f3ffb7987050533292)

Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Paul Eggleton
2013-04-04 10:35:10 -07:00
committed by Richard Purdie
parent 2b83480cb1
commit eb84088b6e
3 changed files with 19 additions and 24 deletions
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documentation/dev-manual/dev-manual-common-tasks.xml
+12 -15
View File
@@ -106,14 +106,14 @@
required syntax:
<literallayout class='monospaced'>
# We have a conf and classes directory, add to BBPATH
BBPATH := "${BBPATH}:${LAYERDIR}"
BBPATH .= ":${LAYERDIR}"
# We have a packages directory, add to BBFILES
BBFILES := "${BBFILES} ${LAYERDIR}/recipes-*/*/*.bb \
# We have recipes-* directories, add to BBFILES
BBFILES += "${LAYERDIR}/recipes-*/*/*.bb \
${LAYERDIR}/recipes-*/*/*.bbappend"
BBFILE_COLLECTIONS += "yoctobsp"
BBFILE_PATTERN_yoctobsp := "^${LAYERDIR}/"
BBFILE_PATTERN_yoctobsp = "^${LAYERDIR}/"
BBFILE_PRIORITY_yoctobsp = "5"
</literallayout></para>
<para>Here is an explanation of the example:
@@ -148,9 +148,9 @@
used to match files from
<filename>BBFILES</filename> into a particular
layer.
In this case, immediate expansion of
In this case,
<filename><ulink url='&YOCTO_DOCS_REF_URL;#var-LAYERDIR'>LAYERDIR</ulink></filename>
sets <filename>BBFILE_PATTERN</filename> to the
is used to make <filename>BBFILE_PATTERN</filename> match within the
layer's path.</para></listitem>
<listitem><para>The
<filename><ulink url='&YOCTO_DOCS_REF_URL;#var-BBFILE_PRIORITY'>BBFILE_PRIORITY</ulink></filename>
@@ -162,10 +162,7 @@
</itemizedlist></para>
<para>Note the use of the
<filename><ulink url='&YOCTO_DOCS_REF_URL;#var-LAYERDIR'>LAYERDIR</ulink></filename>
variable with the immediate expansion operator.
The <filename>LAYERDIR</filename> variable expands to the directory of the current layer and
requires the immediate expansion operator so that BitBake does not wait to expand the variable
when it's parsing a different directory.</para>
variable, which expands to the directory of the current layer.</para>
<para>Through the use of the <filename>BBPATH</filename> variable,
BitBake locates <filename>.bbclass</filename> files, configuration
files, and files that are included with <filename>include</filename>
@@ -402,7 +399,7 @@
variable.
For example:
<literallayout class='monospaced'>
BBFILE_PRIORITY := "1"
BBFILE_PRIORITY_mylayer = "1"
</literallayout>
</para>
@@ -1963,14 +1960,14 @@
the <filename>layer.conf</filename> file as follows:
<literallayout class='monospaced'>
# We have a conf and classes directory, add to BBPATH
BBPATH := "${BBPATH}:${LAYERDIR}"
BBPATH .= ":${LAYERDIR}"
# We have a packages directory, add to BBFILES
BBFILES := "${BBFILES} ${LAYERDIR}/recipes-*/*/*.bb \
# We have recipes-* directories, add to BBFILES
BBFILES += "${LAYERDIR}/recipes-*/*/*.bb \
${LAYERDIR}/recipes-*/*/*.bbappend"
BBFILE_COLLECTIONS += "mylayer"
BBFILE_PATTERN_mylayer := "^${LAYERDIR}/"
BBFILE_PATTERN_mylayer = "^${LAYERDIR}/"
BBFILE_PRIORITY_mylayer = "5"
</literallayout>
Notice <filename>mylayer</filename> as part of the last three