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bitbake: bitbake-user-manual: Updated Hello World tutorial

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Fixes [YOCTO #12016]

(Bitbake rev: bc5b2e7e7fab53ee9ee0db762de822bb88062419)

Signed-off-by: Kristi Rifenbark <kristi.rifenbark@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Kristi Rifenbark
2017-09-25 15:58:45 -07:00
committed by Richard Purdie
parent 1613e00f52
commit 7a2e6534b0
1 changed files with 21 additions and 3 deletions
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24
bitbake/doc/bitbake-user-manual/bitbake-user-manual-hello.xml
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@@ -273,12 +273,30 @@
some editor to create the <filename>bitbake.conf</filename> some editor to create the <filename>bitbake.conf</filename>
so that it contains the following: so that it contains the following:
<literallayout class='monospaced'> <literallayout class='monospaced'>
<link linkend='var-PN'>PN</link> = "${@bb.parse.BBHandler.vars_from_file(d.getVar('FILE', False),d)[0] or 'defaultpkgname'}"
</literallayout>
<literallayout class='monospaced'>
TMPDIR = "${<link linkend='var-TOPDIR'>TOPDIR</link>}/tmp" TMPDIR = "${<link linkend='var-TOPDIR'>TOPDIR</link>}/tmp"
<link linkend='var-CACHE'>CACHE</link> = "${TMPDIR}/cache" <link linkend='var-CACHE'>CACHE</link> = "${TMPDIR}/cache"
<link linkend='var-STAMP'>STAMP</link> = "${TMPDIR}/stamps" <link linkend='var-STAMP'>STAMP</link> = "${TMPDIR}/${PN}/stamps"
<link linkend='var-T'>T</link> = "${TMPDIR}/work" <link linkend='var-T'>T</link> = "${TMPDIR}/${PN}/work"
<link linkend='var-B'>B</link> = "${TMPDIR}" <link linkend='var-B'>B</link> = "${TMPDIR}/${PN}"
</literallayout> </literallayout>
<note>
Without a value for <filename>PN</filename>, the
variables <filename>STAMP</filename>,
<filename>T</filename>, and <filename>B</filename>,
prevent more than one recipe from working. You can fix
this by either setting <filename>PN</filename> to have
a value similar to what OpenEmbedded and BitBake use
in the default <filename>bitbake.conf</filename> file
(see previous example). Or, by manually updating each
recipe to set <filename>PN</filename>. You will also
need to include <filename>PN</filename> as part of the
<filename>STAMP</filename>, <filename>T</filename>, and
<filename>B</filename> variable definitions in the
<filename>local.conf</filename> file.
</note>
The <filename>TMPDIR</filename> variable establishes a directory The <filename>TMPDIR</filename> variable establishes a directory
that BitBake uses for build output and intermediate files (other that BitBake uses for build output and intermediate files (other
than the cached information used by the than the cached information used by the