Add phony target to run proguard on bouncycastle to find dead code

Change-Id: Ie1e8c973d302b112709de8ec4b3d3e42da48b461

1 files changed, 60 insertions, 0 deletions

diff --git a/Android.mk b/Android.mk
new file mode 100644
index 00000000..259e6f4e
--- /dev/null
+++ b/Android.mk
@@ -0,0 +1,60 @@
+#
+# Copyright (C) 2010 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := bouncycastle
+LOCAL_SRC_FILES := $(call all-java-files-under,src/main/java)
+include $(BUILD_STATIC_JAVA_LIBRARY)
+
+# Based on "Finding dead code" example in ProGuard manual at http://proguard.sourceforge.net/
+.PHONY: bouncycastle-proguard-deadcode
+bouncycastle-proguard-deadcode: $(full_classes_compiled_jar) $(full_java_libs)
+	$(PROGUARD) \
+		-injars $(full_classes_compiled_jar) \
+		-libraryjars "$(call normalize-path-list,$(addsuffix (!org/bouncycastle/**.class,!org/apache/harmony/xnet/provider/jsse/OpenSSLMessageDigest.class),$(full_java_libs)))" \
+		-dontoptimize \
+		-dontobfuscate \
+		-dontpreverify \
+		-ignorewarnings \
+		-printusage \
+		-keep class org.bouncycastle.jce.provider.BouncyCastleProvider "{ public protected *; }" \
+		-keep class org.bouncycastle.jce.provider.symmetric.AESMappings "{ public protected *; }" \
+		-keep class org.bouncycastle.asn1.ASN1TaggedObject "{ public protected *; }" \
+		-keep class org.bouncycastle.asn1.x509.CertificateList "{ public protected *; }" \
+		-keep class org.bouncycastle.crypto.AsymmetricBlockCipher "{ public protected *; }" \
+		-keep class org.bouncycastle.x509.ExtendedPKIXBuilderParameters "{ public protected *; }" \
+		`(find $(LOCAL_PATH) -name '*.java' | xargs grep '"org.bouncycastle' | egrep '  (put|add)' | sed -e 's/");//' -e 's/.*"//'; \
+		  find $(LOCAL_PATH) -name '*.java' | xargs grep '  addHMACAlgorithm' | sed 's/"org.bouncycastle/\norg.bouncycastle/g' | grep ^org.bouncycastle | sed 's/".*//'; \
+                  find . -name '*.java' | xargs grep 'import org.bouncycastle' | grep -v /bouncycastle/ | sed -e 's/.*:import //' -e 's/;//') \
+		  | sed -e 's/^/-keep class /' -e 's/$$/ { public protected \*; } /' | sort | uniq` \
+		-keepclassmembers "class * { \
+		    static final %                *; \
+		    static final java.lang.String *; \
+		}" \
+		-keepclassmembers "class * implements java.io.Serializable { \
+		    private static final java.io.ObjectStreamField[] serialPersistentFields; \
+		    private void writeObject(java.io.ObjectOutputStream); \
+		    private void readObject(java.io.ObjectInputStream); \
+		    java.lang.Object writeReplace(); \
+		    java.lang.Object readResolve(); \
+		}" \
+		-keepclassmembers "interface org.bouncycastle.crypto.paddings.BlockCipherPadding { \
+		    abstract public java.lang.String getPaddingName(); \
+		}" \
+		-keepclassmembers "class * implements org.bouncycastle.crypto.paddings.BlockCipherPadding { \
+		    public java.lang.String getPaddingName(); \
+		}"