[PATCH] bitbake/cooker: Ensure matchFile returns full pathnames

[Richard Purdie <richard.purdie@linuxfoundation.org>]

We should always be passing full pathnames around within bitbake. If
a file was referenced as a relative path to the current working
directory, it might not get passed through the abspath call and
hence the cwd would not get added as a prefix.

This change attempts to put everything through abspath and ignores
failures. Any failure cases would mean the file simply wouldn't exist
and then would get covered by the catchall code below.

[YOCTO #1465]

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
---
diff --git a/bitbake/lib/bb/cooker.py b/bitbake/lib/bb/cooker.py
index 8ad4922..e036efb 100644
--- a/bitbake/lib/bb/cooker.py
+++ b/bitbake/lib/bb/cooker.py
@@ -985,9 +985,10 @@ class BBCooker:
         """
         Find the .bb files which match the expression in 'buildfile'.
         """
-
-        if bf.startswith("/") or bf.startswith("../"):
+        try:
             bf = os.path.abspath(bf)
+        except:
+            pass
         filelist, masked = self.collect_bbfiles()
         try:
             os.stat(bf)