image.bbclass: use prependVarFlag for postfuncs

It would be possible to achieve any order of calling functions if
prefuncs are added with appendVarFlag and postfuncs with prependVarFlag.
Then image_X.bbclass can add code with either pre/post-funcs or
do_image_x_append or _prepend.

The execution order would be:

image_X prefuncs
image prefuncs
do_image_X_prepend from image_X.bbclass
do_image_X from image.bbclass
do_image_X_append from image_X.bbclass
image postfuncs
image_X postfuncs

[YOCTO #11372]

Thanks to Ola Nillsson for the idea.

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>

diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
index d806f7ea45d520bd5753f1ba334c6fe9df327680..6e30b967455f5b3b21c532a584ad16f20729c048 100644 (file)
--- a/meta/classes/image.bbclass
+++ b/meta/classes/image.bbclass
@@ -497,7 +497,7 @@ python () {
         d.setVarFlag(task, 'fakeroot', '1')
 
         d.appendVarFlag(task, 'prefuncs', ' ' + debug + ' set_image_size')
-        d.appendVarFlag(task, 'postfuncs', ' create_symlinks')
+        d.prependVarFlag(task, 'postfuncs', ' create_symlinks')
         d.appendVarFlag(task, 'subimages', ' ' + ' '.join(subimages))
         d.appendVarFlag(task, 'vardeps', ' ' + ' '.join(vardeps))
         d.appendVarFlag(task, 'vardepsexclude', 'DATETIME')