Symbols from overlays are merged into the target tree, and are required to
have the form:
/fragment@XXX/__overlay__/...
If any symbols don't have this form, the overlay is rejected.
But there's not really anything wrong with an overlay having "local"
labels referring to a fragment node or some other metadata, that's not
expected to end up in a target tree.
So change our overlay application to simply ignore such symbols rather than
fail.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
When applying overlays, we merge symbols from the overlay into the target
tree. At the moment the logic for this assumes all symbols in the overlay
are attached to a node of the form:
/fragment@XXX/__overlay__/relative/path
And will end up applied to the relative/path node under the fragment's
target.
However, this disallows the case of a symbol in the form just:
/fragment@XXX/__overlay__
This does have a pretty obvious sensible meaning: attach the new symbol
directly to the fragment's target, but we don't currently do that.
It's pretty easy to workaround this limitation in one's overlays, but it's
also easy to handle in the overlay applying code, so we might as well
extend it to cover this case.
Reported-by: Christophe Braillon
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Add a stacked overlay unit test, piggybacking on fdtoverlay.
Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
David Gibson