base.bbclass: Ensure finalised data is displayed in build banner

The build banner displayed at the start of builds can be misleading since
the data store has not been finalised. As easy way to illustrate this is
to use something like:

DEFAULTTUNE = "i586"
DEFAULTTUNE_<machineoverride> = "core2"

and the banner will display the i586 tune yet the core2 tune will be
used. We can avoid this if we finalise a copy of the data before
displaying it.

[YOCTO #4225]

(From OE-Core master rev: bdce39f22a0e8c8e1cf237322657220e4201077d)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/classes/base.bbclass b/meta/classes/base.bbclass
index 641316d1fa46db24fe400bcbf11df1815c2b3713..1ca7d663d77f3b3d0ae10a1f4b0507ec5a6cb28a 100644 (file)
--- a/meta/classes/base.bbclass
+++ b/meta/classes/base.bbclass
@@ -308,13 +308,15 @@ python base_eventhandler() {
         oe.utils.features_backfill("MACHINE_FEATURES", e.data)
 
     if isinstance(e, bb.event.BuildStarted):
+        localdata = bb.data.createCopy(e.data)
+        bb.data.update_data(localdata)
         statuslines = []
-        for func in oe.data.typed_value('BUILDCFG_FUNCS', e.data):
+        for func in oe.data.typed_value('BUILDCFG_FUNCS', localdata):
             g = globals()
             if func not in g:
                 bb.warn("Build configuration function '%s' does not exist" % func)
             else:
-                flines = g[func](e.data)
+                flines = g[func](localdata)
                 if flines:
                     statuslines.extend(flines)