[OE-core] [PATCH 4/6] lib/oe/sstatesig: Fix task mappings from multilib<->non-multilib contexts

[Richard Purdie]

If we're in a multilib context already and want a non-multilib context
this function returned incorrect values.

Try and retain optimisations for the common case not needing to request
a datastore but allow the different multilib/non-multilib combinations
to work too.

This fixes bugs where rootfs generation of a multilib image would
write into incorrect locations, or be unable to find sstate manifest
files due to incorrect data stores being used to expand data.

Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
 meta/lib/oe/sstatesig.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/meta/lib/oe/sstatesig.py b/meta/lib/oe/sstatesig.py
index b82e0f422ee..0aa577d44d2 100644
--- a/meta/lib/oe/sstatesig.py
+++ b/meta/lib/oe/sstatesig.py
@@ -372,8 +372,14 @@ def sstate_get_manifest_filename(task, d):
 def find_sstate_manifest(taskdata, taskdata2, taskname, d, multilibcache):
     d2 = d
     variant = ''
+    curr_variant = ''
+    if d.getVar("BBEXTENDCURR") == "multilib":
+        curr_variant = d.getVar("BBEXTENDVARIANT")
+        if "virtclass-multilib" not in d.getVar("OVERRIDES"):
+            curr_variant = "invalid"
     if taskdata2.startswith("virtual:multilib"):
         variant = taskdata2.split(":")[2]
+    if curr_variant != variant:
         if variant not in multilibcache:
             multilibcache[variant] = oe.utils.get_multilib_datastore(variant, d)
         d2 = multilibcache[variant]
-- 
2.17.1