Merge "Ensure there are no empty paths in ANDROID_BUILD_PATHS and PATH."
diff --git a/core/package_internal.mk b/core/package_internal.mk
index 9f5a599..800dbbc 100644
--- a/core/package_internal.mk
+++ b/core/package_internal.mk
@@ -35,6 +35,10 @@
 endif
 LOCAL_MODULE_SUFFIX := $(COMMON_ANDROID_PACKAGE_SUFFIX)
 
+ifneq ($(strip $(LOCAL_MODULE_STEM)$(LOCAL_BUILT_MODULE_STEM)),)
+$(error $(LOCAL_PATH): Package modules may not define LOCAL_MODULE_STEM or LOCAL_BUILT_MODULE_STEM)
+endif
+
 ifneq ($(strip $(LOCAL_MODULE)),)
 $(error $(LOCAL_PATH): Package modules may not define LOCAL_MODULE)
 endif
diff --git a/core/product_config.mk b/core/product_config.mk
index 614dfa2..cf92924 100644
--- a/core/product_config.mk
+++ b/core/product_config.mk
@@ -320,6 +320,12 @@
 
 PRODUCT_SYSTEM_SERVER_JARS := $(call qualify-platform-jars,$(PRODUCT_SYSTEM_SERVER_JARS))
 
+# Sort APEX system server jars. We use deterministic alphabetical order when
+# constructing SYSTEMSERVERCLASSPATH definition on device after a Mainline
+# update. Enforce it in the build system as well to avoid recompiling everything
+# after an update due a change in SYSTEMSERVERCLASSPATH order.
+PRODUCT_APEX_SYSTEM_SERVER_JARS := $(sort $(PRODUCT_APEX_SYSTEM_SERVER_JARS))
+
 ifndef PRODUCT_SYSTEM_NAME
   PRODUCT_SYSTEM_NAME := $(PRODUCT_NAME)
 endif
diff --git a/core/product_config.rbc b/core/product_config.rbc
index 9a6b1c0..c0bf281 100644
--- a/core/product_config.rbc
+++ b/core/product_config.rbc
@@ -220,13 +220,21 @@
     return (globals, configs[top_pcm_name][1], globals_base)
 
 
+def _dictionary_difference(a, b):
+    result = {}
+    for attr, val in a.items():
+        if attr not in b or b[attr] != val:
+            result[attr] = val
+    return result
+
 def _board_configuration(board_config_init, input_variables_init):
     globals = {}
     h = __h_new()
     input_variables_init(globals, h)
+    cfg_base = dict(**h[0])
     globals_base = dict(**globals)
     board_config_init(globals, h)
-    return (globals, h[1], globals_base)
+    return (globals, _dictionary_difference(h[0], cfg_base), globals_base)
 
 
 def _substitute_inherited(configs, pcm_name, cfg):
diff --git a/target/product/default_art_config.mk b/target/product/default_art_config.mk
index e988d00..5e20218 100644
--- a/target/product/default_art_config.mk
+++ b/target/product/default_art_config.mk
@@ -65,7 +65,7 @@
     com.android.tethering:framework-tethering \
     com.android.wifi:framework-wifi
 
-# APEX system server jars. Keep the list sorted by module names and then library names.
+# APEX system server jars. The list will be sorted automatically.
 PRODUCT_APEX_SYSTEM_SERVER_JARS := \
     com.android.appsearch:service-appsearch \
     com.android.art:service-art \
diff --git a/tools/signapk/src/com/android/signapk/SignApk.java b/tools/signapk/src/com/android/signapk/SignApk.java
index 8bf1005..232e119 100644
--- a/tools/signapk/src/com/android/signapk/SignApk.java
+++ b/tools/signapk/src/com/android/signapk/SignApk.java
@@ -64,12 +64,19 @@
 import java.nio.ByteOrder;
 import java.nio.charset.StandardCharsets;
 import java.security.GeneralSecurityException;
+import java.security.NoSuchAlgorithmException;
 import java.security.Key;
 import java.security.KeyFactory;
+import java.security.KeyStore;
+import java.security.KeyStoreException;
+import java.security.KeyStore.PrivateKeyEntry;
 import java.security.PrivateKey;
 import java.security.Provider;
 import java.security.Security;
+import java.security.UnrecoverableEntryException;
+import java.security.UnrecoverableKeyException;
 import java.security.cert.CertificateEncodingException;
+import java.security.cert.CertificateException;
 import java.security.cert.CertificateFactory;
 import java.security.cert.X509Certificate;
 import java.security.spec.InvalidKeySpecException;
@@ -286,6 +293,32 @@
         }
     }
 
+    private static KeyStore createKeyStore(String keyStoreName, String keyStorePin) throws
+            CertificateException,
+            IOException,
+            KeyStoreException,
+            NoSuchAlgorithmException {
+        KeyStore keyStore = KeyStore.getInstance(keyStoreName);
+        keyStore.load(null, keyStorePin == null ? null : keyStorePin.toCharArray());
+        return keyStore;
+    }
+
+    /** Get a PKCS#11 private key from keyStore */
+    private static PrivateKey loadPrivateKeyFromKeyStore(
+            final KeyStore keyStore, final String keyName, final String password)
+            throws CertificateException, KeyStoreException, NoSuchAlgorithmException,
+                    UnrecoverableKeyException, UnrecoverableEntryException {
+        final Key key = keyStore.getKey(keyName, password == null ? null : password.toCharArray());
+        final PrivateKeyEntry privateKeyEntry = (PrivateKeyEntry) keyStore.getEntry(keyName, null);
+        if (privateKeyEntry == null) {
+        throw new Error(
+            "Key "
+                + keyName
+                + " not found in the token provided by PKCS11 library!");
+        }
+        return privateKeyEntry.getPrivateKey();
+    }
+
     /**
      * Add a copy of the public key to the archive; this should
      * exactly match one of the files in
@@ -1022,6 +1055,8 @@
                            "[-a <alignment>] " +
                            "[--align-file-size] " +
                            "[-providerClass <className>] " +
+                           "[-loadPrivateKeysFromKeyStore <keyStoreName>]" +
+                           "[-keyStorePin <pin>]" +
                            "[--min-sdk-version <n>] " +
                            "[--disable-v2] " +
                            "[--enable-v4] " +
@@ -1044,6 +1079,8 @@
 
         boolean signWholeFile = false;
         String providerClass = null;
+        String keyStoreName = null;
+        String keyStorePin = null;
         int alignment = 4;
         boolean alignFileSize = false;
         Integer minSdkVersionOverride = null;
@@ -1062,6 +1099,18 @@
                 }
                 providerClass = args[++argstart];
                 ++argstart;
+            } else if ("-loadPrivateKeysFromKeyStore".equals(args[argstart])) {
+                if (argstart + 1 >= args.length) {
+                    usage();
+                }
+                keyStoreName = args[++argstart];
+                ++argstart;
+            } else if ("-keyStorePin".equals(args[argstart])) {
+                if (argstart + 1 >= args.length) {
+                    usage();
+                }
+                keyStorePin = args[++argstart];
+                ++argstart;
             } else if ("-a".equals(args[argstart])) {
                 alignment = Integer.parseInt(args[++argstart]);
                 ++argstart;
@@ -1142,11 +1191,21 @@
             // timestamp using the current timezone. We thus adjust the milliseconds since epoch
             // value to end up with MS-DOS timestamp of Jan 1 2009 00:00:00.
             timestamp -= TimeZone.getDefault().getOffset(timestamp);
-
+            KeyStore keyStore = null;
+            if (keyStoreName != null) {
+                keyStore = createKeyStore(keyStoreName, keyStorePin);
+            }
             PrivateKey[] privateKey = new PrivateKey[numKeys];
             for (int i = 0; i < numKeys; ++i) {
                 int argNum = argstart + i*2 + 1;
-                privateKey[i] = readPrivateKey(new File(args[argNum]));
+                if (keyStore == null) {
+                    privateKey[i] = readPrivateKey(new File(args[argNum]));
+                } else {
+                    String[] splits = args[argNum].split(":", 2);
+                    final String keyAlias = splits[0];
+                    final String password = splits.length > 1 ? splits[1] : null;
+                    privateKey[i] = loadPrivateKeyFromKeyStore(keyStore, keyAlias, password);
+                }
             }
             inputJar = new JarFile(new File(inputFilename), false);  // Don't verify.