[OE-core] [PATCH 2/2] sstatesig: Fix locked signature handling with unihashes

[Richard Purdie]

get_taskhash will call get_unihash internally in the parent class. We
need to disable our filter of it whilst this runs else incorrect hashes
can be calculated.

This is believed to be causing the locked signatures test to fail under
some circumstances (depending on whether earlier hashes are being
remapped).

[YOCTO #13605]

Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
 meta/lib/oe/sstatesig.py | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/meta/lib/oe/sstatesig.py b/meta/lib/oe/sstatesig.py
index ca3c6dfeaa1..acccf9377fb 100644
--- a/meta/lib/oe/sstatesig.py
+++ b/meta/lib/oe/sstatesig.py
@@ -104,6 +104,7 @@ class SignatureGeneratorOEBasicHashMixIn(object):
                                 "").split()
         self.unlockedrecipes = { k: "" for k in self.unlockedrecipes }
         self.buildarch = data.getVar('BUILD_ARCH')
+        self._internal = False
         pass
 
     def tasks_resolved(self, virtmap, virtpnmap, dataCache):
@@ -156,7 +157,12 @@ class SignatureGeneratorOEBasicHashMixIn(object):
             else:
                 return super().get_taskhash(tid, deps, dataCache)
 
+        # get_taskhash will call get_unihash internally in the parent class, we 
+        # need to disable our filter of it whilst this runs else
+        # incorrect hashes can be calculated.
+        self._internal = True
         h = super().get_taskhash(tid, deps, dataCache)
+        self._internal = False
 
         (mc, _, task, fn) = bb.runqueue.split_tid_mcfn(tid)
 
@@ -199,7 +205,7 @@ class SignatureGeneratorOEBasicHashMixIn(object):
         return h
 
     def get_unihash(self, tid):
-        if tid in self.lockedhashes and self.lockedhashes[tid]:
+        if tid in self.lockedhashes and self.lockedhashes[tid] and not self._internal:
             return self.lockedhashes[tid]
         return super().get_unihash(tid)
 
-- 
2.20.1