Add warning log for mismatched signatures

It's difficult to see in bugreports when this situation arises. Add a
small log so we can easily determine installation failure reason.

Change-Id: Ie59c205cf731cad7b3d04ceb995e58a093c62455

1 files changed, 1 insertions, 0 deletions

diff --git a/services/java/com/android/server/pm/PackageManagerService.java b/services/java/com/android/server/pm/PackageManagerService.java
index 1d02b7a3..c0b052c 100644
--- a/services/java/com/android/server/pm/PackageManagerService.java
+++ b/services/java/com/android/server/pm/PackageManagerService.java
@@ -6614,6 +6614,7 @@ public class PackageManagerService extends IPackageManager.Stub {
             oldPackage = mPackages.get(pkgName);
             if (compareSignatures(oldPackage.mSignatures, pkg.mSignatures)
                     != PackageManager.SIGNATURE_MATCH) {
+                Slog.w(TAG, "New package has a different signature: " + pkgName);
                 res.returnCode = PackageManager.INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES;
                 return;
             }