siggen: Add computed hash code to verify hash computation to dumpsig

This is useful code to double check the computed checksum value if nothing
else. Might as well have it in tree.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 13 insertions, 0 deletions

diff --git a/lib/bb/siggen.py b/lib/bb/siggen.py
index 1033785e05..e92a9c48a7 100644
--- a/lib/bb/siggen.py
+++ b/lib/bb/siggen.py
@@ -499,4 +499,17 @@ def dump_sigfile(a):
     if 'taint' in a_data:
         output.append("Tainted (by forced/invalidated task): %s" % a_data['taint'])
 
+    data = a_data['basehash']
+    for dep in a_data['runtaskdeps']:
+        data = data + a_data['runtaskhashes'][dep]
+
+    for c in a_data['file_checksum_values']:
+        data = data + c[1]
+
+    if 'taint' in a_data:
+        data = data + a_data['taint']
+
+    h = hashlib.md5(data).hexdigest()
+    output.append("Computed Hash is %s" % h)
+
     return output