mirrors/poky
1
0
Fork 0
mirror of https://git.yoctoproject.org/poky synced 2026-04-27 21:32:13 +02:00
Code Issues Packages Projects Releases Wiki Activity

ref-manual, dev-manual: Updates for "staging" discussion and variables.

Browse Source 
Fixes [YOCTO #8631]

These fixes cover the following:

 * New glossary entry for SYSROOT_DIRS
 * New glossary entry for SYSROOT_DIRS_NATIVE
 * New glossary entry for SYSROOT_DIRS_BLACKLIST
 * New section titled "Sharing Files Between Recipes" in the
   dev-manual's "Writing a New Recipe" section.

(From yocto-docs rev: e541a3c8967f51b903d9dd7978009f4fa7c2f014)

Signed-off-by: Scott Rifenbark <srifenbark@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Scott Rifenbark
2016-09-22 14:27:04 -07:00
committed by Richard Purdie
parent 1c594557f7
commit 8a8349be29
2 changed files with 120 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

50
documentation/dev-manual/dev-manual-common-tasks.xml
View File

@@ -2875,6 +2875,56 @@
</para>
</section>
<section id='new-sharing-files-between-recipes'>
<title>Sharing Files Between Recipes</title>
<para>
Recipes often need to use files provided by other recipes on
the build host.
For example, an application linking to a common library needs
access to the library itself and its associated headers.
The way this access is accomplished is by populating sysroot
with files.
One sysroot exists per "machine" for which the image is
being built.
In practical terms, this means a sysroot exists for the target
machine, and a sysroot exists for the build host.
<note>
You could find the term "staging" used within the Yocto
project regarding files populating sysroot.
The term "staging" was used for previous releases of
the Yocto Project.
</note>
</para>
<para>
Recipes should never populate the sysroot directly (i.e. write
files into sysroot).
Instead, files should be installed into standard locations
during the
<ulink url='&YOCTO_DOCS_REF_URL;#ref-tasks-install'><filename>do_install</filename></ulink>
task within the
<filename>${</filename><ulink url='&YOCTO_DOCS_REF_URL;#var-D'><filename>D</filename></ulink><filename>}</filename>
directory.
A subset of these files automatically populates the sysroot.
The reason for this limitation is that almost all files that
populate the sysroot are cataloged in manifests in order to
ensure the files can be removed later when a recipe is either
modified or removed.
Thus, the sysroot is able to remain free from stale files.
</para>
<para>
For information on variables you can use to help control how
files sysroot is populated, see the
<ulink url='&YOCTO_DOCS_REF_URL;#var-SYSROOT_DIRS'><filename>SYSROOT_DIRS</filename></ulink>,
<ulink url='&YOCTO_DOCS_REF_URL;#var-SYSROOT_DIRS_NATIVE'><filename>SYSROOT_DIRS_NATIVE</filename></ulink>,
and
<ulink url='&YOCTO_DOCS_REF_URL;#var-SYSROOT_DIRS_BLACKLIST'><filename>SYSROOT_DIRS_BLACKLIST</filename></ulink>
variables.
</para>
</section>
<section id='properly-versioning-pre-release-recipes'>
<title>Properly Versioning Pre-Release Recipes</title>