diff --git a/CleanSpec.mk b/CleanSpec.mk
index 19cb651..3c8d6ce 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -354,7 +354,7 @@
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/root/default.prop)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/recovery/root/default.prop)
 
-# Change PLATFORM_VERSION from MNC to M
+# New York, New York!
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/build.prop)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/*)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/APPS/*)
@@ -364,13 +364,13 @@
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/*)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/APPS/*)
 
-# 23 is becoming more alive!!!
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/build.prop)
+
+# Change PLATFORM_VERSION from NYC to N
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/build.prop)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/*)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/APPS/*)
 
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/build.prop)
-
 # $(PRODUCT_OUT)/recovery/root/sdcard goes from symlink to folder.
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/recovery/root/sdcard)
 
diff --git a/core/Makefile b/core/Makefile
index 9f09550..1fe1445 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -530,7 +530,6 @@
 INTERNAL_BVBTOOL_MAKE_BOOT_IMAGE_ARGS += --initrd $(INSTALLED_RAMDISK_TARGET)
 endif
 
-
 INTERNAL_BOOTIMAGE_FILES := $(filter-out --%,$(INTERNAL_BOOTIMAGE_ARGS))
 
 BOARD_KERNEL_CMDLINE := $(strip $(BOARD_KERNEL_CMDLINE))
@@ -810,7 +809,7 @@
 ifneq (true,$(TARGET_USERIMAGES_SPARSE_SQUASHFS_DISABLED))
   INTERNAL_USERIMAGES_SPARSE_SQUASHFS_FLAG := -s
 endif
-ifeq ($(BOARD_SYSTEMIMAGE_FILE_SYSTEM_TYPE),squashfs)
+ifneq ($(filter $(BOARD_VENDORIMAGE_FILE_SYSTEM_TYPE) $(BOARD_SYSTEMIMAGE_FILE_SYSTEM_TYPE),squashfs),)
 INTERNAL_USERIMAGES_DEPS += $(MAKE_SQUASHFS) $(MKSQUASHFSUSERIMG) $(IMG2SIMG)
 endif
 
@@ -826,6 +825,8 @@
 SELINUX_FC := $(TARGET_ROOT_OUT)/file_contexts.bin
 INTERNAL_USERIMAGES_DEPS += $(SELINUX_FC)
 
+INTERNAL_USERIMAGES_DEPS += $(BLK_ALLOC_TO_BASE_FS)
+
 # $(1): the path of the output dictionary file
 # $(2): additional "key=value" pairs to append to the dictionary file.
 define generate-userimage-prop-dictionary
@@ -836,6 +837,7 @@
 $(if $(BOARD_HAS_EXT4_RESERVED_BLOCKS),$(hide) echo "has_ext4_reserved_blocks=$(BOARD_HAS_EXT4_RESERVED_BLOCKS)" >> $(1))
 $(if $(BOARD_SYSTEMIMAGE_SQUASHFS_COMPRESSOR),$(hide) echo "system_squashfs_compressor=$(BOARD_SYSTEMIMAGE_SQUASHFS_COMPRESSOR)" >> $(1))
 $(if $(BOARD_SYSTEMIMAGE_SQUASHFS_COMPRESSOR_OPT),$(hide) echo "system_squashfs_compressor_opt=$(BOARD_SYSTEMIMAGE_SQUASHFS_COMPRESSOR_OPT)" >> $(1))
+$(if $(INTERNAL_SYSTEM_BASE_FS_PATH),$(hide) echo "system_base_fs_file=$(INTERNAL_SYSTEM_BASE_FS_PATH)" >> $(1))
 $(if $(BOARD_USERDATAIMAGE_FILE_SYSTEM_TYPE),$(hide) echo "userdata_fs_type=$(BOARD_USERDATAIMAGE_FILE_SYSTEM_TYPE)" >> $(1))
 $(if $(BOARD_USERDATAIMAGE_PARTITION_SIZE),$(hide) echo "userdata_size=$(BOARD_USERDATAIMAGE_PARTITION_SIZE)" >> $(1))
 $(if $(BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE),$(hide) echo "cache_fs_type=$(BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE)" >> $(1))
@@ -843,6 +845,9 @@
 $(if $(BOARD_VENDORIMAGE_FILE_SYSTEM_TYPE),$(hide) echo "vendor_fs_type=$(BOARD_VENDORIMAGE_FILE_SYSTEM_TYPE)" >> $(1))
 $(if $(BOARD_VENDORIMAGE_PARTITION_SIZE),$(hide) echo "vendor_size=$(BOARD_VENDORIMAGE_PARTITION_SIZE)" >> $(1))
 $(if $(BOARD_VENDORIMAGE_JOURNAL_SIZE),$(hide) echo "vendor_journal_size=$(BOARD_VENDORIMAGE_JOURNAL_SIZE)" >> $(1))
+$(if $(BOARD_VENDORIMAGE_SQUASHFS_COMPRESSOR),$(hide) echo "vendor_squashfs_compressor=$(BOARD_VENDORIMAGE_SQUASHFS_COMPRESSOR)" >> $(1))
+$(if $(BOARD_VENDORIMAGE_SQUASHFS_COMPRESSOR_OPT),$(hide) echo "vendor_squashfs_compressor_opt=$(BOARD_VENDORIMAGE_SQUASHFS_COMPRESSOR_OPT)" >> $(1))
+$(if $(INTERNAL_VENDOR_BASE_FS_PATH),$(hide) echo "vendor_base_fs_file=$(INTERNAL_VENDOR_BASE_FS_PATH)" >> $(1))
 $(if $(BOARD_OEMIMAGE_PARTITION_SIZE),$(hide) echo "oem_size=$(BOARD_OEMIMAGE_PARTITION_SIZE)" >> $(1))
 $(if $(BOARD_OEMIMAGE_JOURNAL_SIZE),$(hide) echo "oem_journal_size=$(BOARD_OEMIMAGE_JOURNAL_SIZE)" >> $(1))
 $(if $(INTERNAL_USERIMAGES_SPARSE_EXT_FLAG),$(hide) echo "extfs_sparse_flag=$(INTERNAL_USERIMAGES_SPARSE_EXT_FLAG)" >> $(1))
@@ -1028,6 +1033,12 @@
 endef
 
 ifeq ($(BOARD_USES_RECOVERY_AS_BOOT),true)
+ifeq (true,$(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_SUPPORTS_BOOT_SIGNER))
+$(INSTALLED_BOOTIMAGE_TARGET) : $(BOOT_SIGNER)
+endif
+ifeq (true,$(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_SUPPORTS_VBOOT))
+$(INSTALLED_BOOTIMAGE_TARGET) : $(VBOOT_SIGNER)
+endif
 $(INSTALLED_BOOTIMAGE_TARGET): $(MKBOOTFS) $(MKBOOTIMG) $(MINIGZIP) \
 		$(INSTALLED_RAMDISK_TARGET) \
 		$(INTERNAL_RECOVERYIMAGE_FILES) \
@@ -1589,7 +1600,7 @@
 	$(hide) rm -rf $@ $(zip_root)/releasetools/*.pyc
 	$(hide) (cd $(zip_root) && zip -qryX $(abspath $@) *)
 	$(hide) zip -qryX $(abspath $@) build/target/product/security/
-	$(hide) find device vendor -name \*.pk8 -o -name \*.x509.pem -o -name oem.prop | xargs zip -qryX $(abspath $@)>/dev/null || true
+	$(hide) find device vendor -name \*.pk8 -o -name verifiedboot\* -o -name \*.x509.pem -o -name oem.prop | xargs zip -qryX $(abspath $@)>/dev/null || true
 
 .PHONY: otatools-package
 otatools-package: $(BUILT_OTATOOLS_PACKAGE)
diff --git a/core/aapt2.mk b/core/aapt2.mk
new file mode 100644
index 0000000..ccc4535
--- /dev/null
+++ b/core/aapt2.mk
@@ -0,0 +1,89 @@
+######################################
+# Compile resource with AAPT2
+# Input variables:
+# full_android_manifest,
+# my_res_resources, my_overlay_resources,
+# my_compiled_res_base_dir, my_res_package,
+# R_file_stamp, proguard_options_file
+# my_generated_res_dirs: Resources generated during the build process and we have to compile them in a single run of aapt2.
+# my_generated_res_dirs_deps: the dependency to use for my_generated_res_dirs.
+#
+# Output variables:
+# my_res_resources_flat, my_overlay_resources_flat,
+# my_generated_resources_flata
+#
+######################################
+
+
+# Compile all the resource files.
+my_res_resources_flat := \
+  $(foreach r, $(my_res_resources),\
+    $(eval o := $(call aapt2-compiled-resource-out-file,$(r),$(my_compiled_res_base_dir)))\
+    $(eval $(call aapt2-compile-one-resource-file-rule,$(r),$(o)))\
+    $(o))
+
+my_overlay_resources_flat := \
+  $(foreach r, $(my_overlay_resources),\
+    $(eval o := $(call aapt2-compiled-resource-out-file,$(r),$(my_compiled_res_base_dir)))\
+    $(eval $(call aapt2-compile-one-resource-file-rule,$(r),$(o)))\
+    $(o))
+
+my_generated_resources_flata :=
+# Compile generated resources
+ifneq ($(my_generated_res_dirs),)
+my_generated_resources_flata := $(my_compiled_res_base_dir)/gen_res.flata
+$(my_generated_resources_flata): PRIVATE_SOURCE_RES_DIRS := $(my_generated_res_dirs)
+$(my_generated_resources_flata) : $(my_generated_res_dirs_deps)
+	@echo "AAPT2 compile $@ <- $(PRIVATE_SOURCE_RES_DIRS)"
+	$(call aapt2-compile-resource-dirs)
+
+my_generated_resources_flata += $(my_generated_resources_flata)
+endif
+
+$(my_res_resources_flat) $(my_overlay_resources_flat) $(my_generated_resources_flata): \
+  PRIVATE_AAPT2_CFLAGS := $(PRODUCT_AAPT2_CFLAGS)
+
+my_static_library_resources := $(foreach l, $(call reverse-list,$(LOCAL_STATIC_ANDROID_LIBRARIES)),\
+  $(call intermediates-dir-for,JAVA_LIBRARIES,$(l),,COMMON)/package-res.apk)
+my_shared_library_resources := $(foreach l, $(LOCAL_SHARED_ANDROID_LIBRARIES),\
+  $(call intermediates-dir-for,JAVA_LIBRARIES,$(l),,COMMON)/package-res.apk)
+
+ifneq ($(my_static_library_resources),)
+$(my_res_package): PRIVATE_AAPT_FLAGS += --auto-add-overlay
+endif
+
+$(my_res_package): PRIVATE_RES_FLAT := $(my_res_resources_flat)
+$(my_res_package): PRIVATE_OVERLAY_FLAT := $(my_static_library_resources) $(my_generated_resources_flata) $(my_overlay_resources_flat)
+$(my_res_package): PRIVATE_SHARED_ANDROID_LIBRARIES := $(my_shared_library_resources)
+$(my_res_package): PRIVATE_PROGUARD_OPTIONS_FILE := $(proguard_options_file)
+$(my_res_package) : $(full_android_manifest) $(my_static_library_resources) $(my_shared_library_resources)
+$(my_res_package) : $(my_res_resources_flat) $(my_overlay_resources_flat) \
+  $(my_generated_resources_flata) $(my_static_library_resources) \
+  $(AAPT2)
+	@echo "AAPT2 link $@"
+	$(call aapt2-link)
+
+ifdef R_file_stamp
+$(R_file_stamp) : $(my_res_package) | $(ACP)
+	@echo "target R.java/Manifest.java: $(PRIVATE_MODULE) ($@)"
+	@rm -rf $@ && mkdir -p $(dir $@)
+	$(call find-generated-R.java)
+endif
+
+ifdef proguard_options_file
+$(proguard_options_file) : $(my_res_package)
+endif
+
+resource_export_package :=
+ifdef LOCAL_EXPORT_PACKAGE_RESOURCES
+# Put this module's resources into a PRODUCT-agnositc package that
+# other packages can use to build their own PRODUCT-agnostic R.java (etc.)
+# files.
+resource_export_package := $(intermediates.COMMON)/package-export.apk
+$(R_file_stamp) : $(resource_export_package)
+
+$(resource_export_package) : $(my_res_package) | $(ACP)
+	@echo "target Export Resources: $(PRIVATE_MODULE) $(@)"
+	$(copy-file-to-new-target)
+
+endif
diff --git a/core/android_manifest.mk b/core/android_manifest.mk
index 582bad4..0093e02 100644
--- a/core/android_manifest.mk
+++ b/core/android_manifest.mk
@@ -22,9 +22,12 @@
 my_full_libs_manifest_files += $(foreach lib, $(LOCAL_STATIC_JAVA_AAR_LIBRARIES),\
   $(call intermediates-dir-for,JAVA_LIBRARIES,$(lib),,COMMON)/aar/AndroidManifest.xml)
 
+# With aapt2, we'll link in the built resource from the AAR.
+ifndef LOCAL_USE_AAPT2
 LOCAL_RESOURCE_DIR += $(foreach lib, $(LOCAL_STATIC_JAVA_AAR_LIBRARIES),\
   $(call intermediates-dir-for,JAVA_LIBRARIES,$(lib),,COMMON)/aar/res)
-endif
+endif  # LOCAL_USE_AAPT2
+endif  # LOCAL_STATIC_JAVA_AAR_LIBRARIES
 
 # Set up rules to merge library manifest files
 ifdef my_full_libs_manifest_files
diff --git a/core/base_rules.mk b/core/base_rules.mk
index c4fbe11..f88fd89 100644
--- a/core/base_rules.mk
+++ b/core/base_rules.mk
@@ -321,7 +321,7 @@
 ## Module installation rule
 ###########################################################
 
-ifndef LOCAL_UNINSTALLABLE_MODULE
+ifneq (true,$(LOCAL_UNINSTALLABLE_MODULE))
 $(LOCAL_INSTALLED_MODULE): PRIVATE_POST_INSTALL_CMD := $(LOCAL_POST_INSTALL_CMD)
 $(LOCAL_INSTALLED_MODULE): $(LOCAL_BUILT_MODULE)
 	@echo "Install: $@"
@@ -373,6 +373,50 @@
 endif
 
 ###########################################################
+## Compatibiliy suite files.
+###########################################################
+ifdef LOCAL_COMPATIBILITY_SUITE
+ifneq ($(words $(LOCAL_COMPATIBILITY_SUITE)),1)
+$(error $(LOCAL_PATH):$(LOCAL_MODULE) LOCAL_COMPATIBILITY_SUITE can be only one name)
+endif
+
+# The module itself.
+my_compat_dist := \
+  $(LOCAL_BUILT_MODULE):$(COMPATIBILITY_TESTCASES_OUT_$(LOCAL_COMPATIBILITY_SUITE))/$(my_installed_module_stem)
+
+# Make sure we only add the files once for multilib modules.
+ifndef $(my_prefix)$(LOCAL_MODULE_CLASS)_$(LOCAL_MODULE)_compat_files
+$(my_prefix)$(LOCAL_MODULE_CLASS)_$(LOCAL_MODULE)_compat_files := true
+
+# LOCAL_COMPATIBILITY_SUPPORT_FILES is a list of <src>[:<dest>].
+my_compat_dist += $(foreach f, $(LOCAL_COMPATIBILITY_SUPPORT_FILES),\
+  $(eval p := $(subst :,$(space),$(f)))\
+  $(eval s := $(word 1,$(p)))\
+  $(eval d := $(COMPATIBILITY_TESTCASES_OUT_$(LOCAL_COMPATIBILITY_SUITE))/$(or $(word 2,$(p)),$(notdir $(word 1,$(p)))))\
+  $(s):$(d))
+
+ifneq (,$(wildcard $(LOCAL_PATH)/AndroidTest.xml))
+my_compat_dist += \
+  $(LOCAL_PATH)/AndroidTest.xml:$(COMPATIBILITY_TESTCASES_OUT_$(LOCAL_COMPATIBILITY_SUITE))/$(LOCAL_MODULE).config
+endif
+
+ifneq (,$(wildcard $(LOCAL_PATH)/DynamicConfig.xml))
+my_compat_dist += \
+  $(LOCAL_PATH)/DynamicConfig.xml:$(COMPATIBILITY_TESTCASES_OUT_$(LOCAL_COMPATIBILITY_SUITE))/$(LOCAL_MODULE).dynamic
+endif
+endif # $(my_prefix)$(LOCAL_MODULE_CLASS)_$(LOCAL_MODULE)_compat_files
+
+my_compat_files := $(call copy-many-files, $(my_compat_dist))
+
+COMPATIBILITY.$(LOCAL_COMPATIBILITY_SUITE).FILES := \
+  $(COMPATIBILITY.$(LOCAL_COMPATIBILITY_SUITE).FILES) \
+  $(my_compat_files)
+
+# Copy over the compatibility files when user runs mm/mmm.
+$(my_register_name) : $(my_compat_files)
+endif  # LOCAL_COMPATIBILITY_SUITE
+
+###########################################################
 ## Register with ALL_MODULES
 ###########################################################
 
diff --git a/core/binary.mk b/core/binary.mk
index 14c2b54..5429274 100644
--- a/core/binary.mk
+++ b/core/binary.mk
@@ -224,11 +224,13 @@
             my_clang := true
         endif
     endif
-# Add option to make clang the default for device build
-else ifeq ($(USE_CLANG_PLATFORM_BUILD),true)
+# Add option to make gcc the default for device build
+else ifeq ($(USE_CLANG_PLATFORM_BUILD),false)
     ifeq ($(my_clang),)
-        my_clang := true
+        my_clang := false
     endif
+else ifeq ($(my_clang),)
+    my_clang := true
 endif
 
 my_cpp_std_version := -std=gnu++14
@@ -568,7 +570,7 @@
 else
 ifneq (,$(LOCAL_SDK_VERSION))
 # Set target-api for LOCAL_SDK_VERSIONs other than current.
-ifneq (,$(filter-out current system_current, $(LOCAL_SDK_VERSION)))
+ifneq (,$(filter-out current system_current test_current, $(LOCAL_SDK_VERSION)))
 renderscript_target_api := $(LOCAL_SDK_VERSION)
 endif
 endif  # LOCAL_SDK_VERSION is set
diff --git a/core/build_id.mk b/core/build_id.mk
index 0e8e2cf..5a012b9 100644
--- a/core/build_id.mk
+++ b/core/build_id.mk
@@ -18,4 +18,4 @@
 # (like "CRB01").  It must be a single word, and is
 # capitalized by convention.
 
-export BUILD_ID=MASTER
+export BUILD_ID=NYC
diff --git a/core/clear_vars.mk b/core/clear_vars.mk
index 46e6ca8..defb7c2 100644
--- a/core/clear_vars.mk
+++ b/core/clear_vars.mk
@@ -82,6 +82,7 @@
 LOCAL_DROIDDOC_CUSTOM_ASSET_DIR:=
 LOCAL_DROIDDOC_OPTIONS:=
 LOCAL_DROIDDOC_HTML_DIR:=
+LOCAL_DROIDDOC_STUB_OUT_DIR:=
 LOCAL_ADDITIONAL_HTML_DIR:=
 LOCAL_ASSET_DIR:=
 LOCAL_RESOURCE_DIR:=
@@ -143,6 +144,8 @@
 LOCAL_ODM_MODULE:=
 LOCAL_PRIVILEGED_MODULE:=
 LOCAL_MODULE_OWNER:=
+LOCAL_COMPATIBILITY_SUITE:=
+LOCAL_COMPATIBILITY_SUPPORT_FILES:=
 LOCAL_CTS_TEST_PACKAGE:=
 LOCAL_CTS_TEST_RUNNER:=
 LOCAL_CLANG:=
@@ -181,10 +184,15 @@
 LOCAL_DPI_FILE_STEM:=
 LOCAL_SANITIZE:=
 LOCAL_SANITIZE_RECOVER:=
+LOCAL_DATA_BINDING:=
 LOCAL_DBUS_PROXY_PREFIX:=
 LOCAL_INIT_RC:=
 LOCAL_MODULE_HOST_OS:=
+LOCAL_FINDBUGS_FLAGS:=
 LOCAL_NOTICE_FILE:=
+LOCAL_USE_AAPT2:=$(USE_AAPT2)
+LOCAL_STATIC_ANDROID_LIBRARIES:=
+LOCAL_SHARED_ANDROID_LIBRARIES:=
 # Used to replace the installed file of a presigned prebuilt apk in PDK fusion build,
 # to avoid installing the presigned apks with classes.dex unstripped.
 LOCAL_REPLACE_PREBUILT_APK_INSTALLED:=
diff --git a/core/combo/mac_version.mk b/core/combo/mac_version.mk
index 380aabe..fb05e59 100644
--- a/core/combo/mac_version.mk
+++ b/core/combo/mac_version.mk
@@ -30,6 +30,7 @@
 mac_sdk_version := $(firstword $(filter $(mac_sdk_versions_installed), $(mac_sdk_versions_supported)))
 ifeq ($(mac_sdk_version),)
 mac_sdk_version := $(firstword $(mac_sdk_versions_supported))
+$(warning none of the installed SDKs ($mac_sdk_versions_installed) match supported versions ($(mac_sdk_versions_supported)), trying $(mac_sdk_version))
 endif
 endif
 
diff --git a/core/config.mk b/core/config.mk
index 5328072..888d6c4 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -35,6 +35,11 @@
 # only has an effect on python 2.6 and above.
 export PYTHONDONTWRITEBYTECODE := 1
 
+ifneq ($(filter --color=always, $(GREP_OPTIONS)),)
+$(warning The build system needs unmodified output of grep.)
+$(error Please remove --color=always from your  $$GREP_OPTIONS)
+endif
+
 # Standard source directories.
 # TODO: Enforce some kind of layering; only add include paths
 #       when a module links against a particular library.
@@ -53,6 +58,7 @@
 SRC_TARGET_DIR := $(TOPDIR)build/target
 SRC_API_DIR := $(TOPDIR)prebuilts/sdk/api
 SRC_SYSTEM_API_DIR := $(TOPDIR)prebuilts/sdk/system-api
+SRC_TEST_API_DIR := $(TOPDIR)prebuilts/sdk/test-api
 
 # Some specific paths to tools
 SRC_DROIDDOC_DIR := $(TOPDIR)build/tools/droiddoc
@@ -450,6 +456,7 @@
 ACP := $(HOST_OUT_EXECUTABLES)/acp
 AIDL := $(HOST_OUT_EXECUTABLES)/aidl
 AAPT := $(HOST_OUT_EXECUTABLES)/aapt
+AAPT2 := $(HOST_OUT_EXECUTABLES)/aapt2
 ZIPALIGN := $(HOST_OUT_EXECUTABLES)/zipalign
 SIGNAPK_JAR := $(HOST_OUT_JAVA_LIBRARIES)/signapk$(COMMON_JAVA_PACKAGE_SUFFIX)
 SIGNAPK_JNI_LIBRARY_PATH := $(HOST_OUT_SHARED_LIBRARIES)
@@ -470,6 +477,7 @@
 ACP := $(prebuilt_sdk_tools_bin)/acp
 AIDL := $(prebuilt_sdk_tools_bin)/aidl
 AAPT := $(prebuilt_sdk_tools_bin)/aapt
+AAPT2 := $(prebuilt_sdk_tools_bin)/aapt2
 ZIPALIGN := $(prebuilt_sdk_tools_bin)/zipalign
 SIGNAPK_JAR := $(prebuilt_sdk_tools)/lib/signapk$(COMMON_JAVA_PACKAGE_SUFFIX)
 # Use 64-bit libraries unconditionally because 32-bit JVMs are no longer supported
@@ -528,6 +536,7 @@
 APICHECK := $(HOST_OUT_EXECUTABLES)/apicheck$(HOST_EXECUTABLE_SUFFIX)
 FS_GET_STATS := $(HOST_OUT_EXECUTABLES)/fs_get_stats$(HOST_EXECUTABLE_SUFFIX)
 MAKE_EXT4FS := $(HOST_OUT_EXECUTABLES)/make_ext4fs$(HOST_EXECUTABLE_SUFFIX)
+BLK_ALLOC_TO_BASE_FS := $(HOST_OUT_EXECUTABLES)/blk_alloc_to_base_fs$(HOST_EXECUTABLE_SUFFIX)
 MKEXTUSERIMG := $(HOST_OUT_EXECUTABLES)/mkuserimg.sh
 ifeq ($(HOST_OS),linux)
 MAKE_SQUASHFS := $(HOST_OUT_EXECUTABLES)/mksquashfs$(HOST_EXECUTABLE_SUFFIX)
@@ -544,6 +553,7 @@
 MKTARBALL := build/tools/mktarball.sh
 TUNE2FS := $(HOST_OUT_EXECUTABLES)/tune2fs$(HOST_EXECUTABLE_SUFFIX)
 JARJAR := $(HOST_OUT_JAVA_LIBRARIES)/jarjar.jar
+DATA_BINDING_COMPILER := $(HOST_OUT_JAVA_LIBRARIES)/databinding-compiler.jar
 
 ifneq ($(ANDROID_JACK_EXTRA_ARGS),)
 DEFAULT_JACK_EXTRA_ARGS := $(ANDROID_JACK_EXTRA_ARGS)
@@ -829,13 +839,15 @@
     $(patsubst $(HISTORICAL_SDK_VERSIONS_ROOT)/%/android.jar,%, \
     $(wildcard $(HISTORICAL_SDK_VERSIONS_ROOT)/*/android.jar)))
 
-# We don't have prebuilt system_current SDK yet.
-TARGET_AVAILABLE_SDK_VERSIONS := $(TARGET_AVAILABLE_SDK_VERSIONS)
+# We don't have prebuilt test_current SDK yet.
+TARGET_AVAILABLE_SDK_VERSIONS := test_current $(TARGET_AVAILABLE_SDK_VERSIONS)
 
 INTERNAL_PLATFORM_API_FILE := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/public_api.txt
 INTERNAL_PLATFORM_REMOVED_API_FILE := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/removed.txt
 INTERNAL_PLATFORM_SYSTEM_API_FILE := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/system-api.txt
 INTERNAL_PLATFORM_SYSTEM_REMOVED_API_FILE := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/system-removed.txt
+INTERNAL_PLATFORM_TEST_API_FILE := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/test-api.txt
+INTERNAL_PLATFORM_TEST_REMOVED_API_FILE := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/test-removed.txt
 
 # This is the standard way to name a directory containing prebuilt target
 # objects. E.g., prebuilt/$(TARGET_PREBUILT_TAG)/libc.so
diff --git a/core/definitions.mk b/core/definitions.mk
index 8d140cd..95d2842 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -1831,6 +1831,86 @@
     --skip-symbols-without-default-localization
 endef
 
+# Search for generated R.java/Manifest.java, copy the found R.java as $@.
+# Also copy them to a central 'R' directory to make it easier to add the files to an IDE.
+define find-generated-R.java
+$(hide) for GENERATED_MANIFEST_FILE in `find $(PRIVATE_SOURCE_INTERMEDIATES_DIR) \
+  -name Manifest.java 2> /dev/null`; do \
+    dir=`awk '/package/{gsub(/\./,"/",$$2);gsub(/;/,"",$$2);print $$2;exit}' $$GENERATED_MANIFEST_FILE`; \
+    mkdir -p $(TARGET_COMMON_OUT_ROOT)/R/$$dir; \
+    $(ACP) -fp $$GENERATED_MANIFEST_FILE $(TARGET_COMMON_OUT_ROOT)/R/$$dir; \
+  done;
+$(hide) for GENERATED_R_FILE in `find $(PRIVATE_SOURCE_INTERMEDIATES_DIR) \
+  -name R.java 2> /dev/null`; do \
+    dir=`awk '/package/{gsub(/\./,"/",$$2);gsub(/;/,"",$$2);print $$2;exit}' $$GENERATED_R_FILE`; \
+    mkdir -p $(TARGET_COMMON_OUT_ROOT)/R/$$dir; \
+    $(ACP) -fp $$GENERATED_R_FILE $(TARGET_COMMON_OUT_ROOT)/R/$$dir \
+      || exit 31; \
+    $(ACP) -fp $$GENERATED_R_FILE $@ || exit 32; \
+  done;
+@# Ensure that the target file is always created, i.e. also in case we did not
+@# enter the GENERATED_R_FILE-loop above. This avoids unnecessary rebuilding.
+$(hide) touch $@
+endef
+
+###########################################################
+# AAPT2 compilation and link
+###########################################################
+define aapt2-compile-one-resource-file
+@mkdir -p $(dir $@)
+$(hide) $(AAPT2) compile -o $(dir $@) $(PRIVATE_AAPT2_CFLAGS) --legacy $<
+endef
+
+define aapt2-compile-resource-dirs
+@mkdir -p $(dir $@)
+$(hide) $(AAPT2) compile -o $@ $(addprefix --dir ,$(PRIVATE_SOURCE_RES_DIRS)) \
+  $(PRIVATE_AAPT2_CFLAGS) --legacy
+endef
+
+# Set up rule to compile one resource file with aapt2.
+# Must be called with $(eval).
+# $(1): the source file
+# $(2): the output file
+define aapt2-compile-one-resource-file-rule
+$(2) : $(1) $(AAPT2)
+	@echo "AAPT2 compile $$@ <- $$<"
+	$$(call aapt2-compile-one-resource-file)
+endef
+
+# Convert input resource file path to output file path.
+# values-[config]/<file>.xml -> values-[config]_<file>.arsc.flat;
+# For other resource file, just replace the last "/" with "_" and
+# add .flat extension.
+#
+# $(1): the input resource file path
+# $(2): the base dir of the output file path
+# Returns: the compiled output file path
+define aapt2-compiled-resource-out-file
+$(eval _p_w := $(strip $(subst /,$(space),$(dir $(1)))))$(2)/$(subst $(space),/,$(_p_w))_$(if $(filter values%,$(lastword $(_p_w))),$(patsubst %.xml,%.arsc,$(notdir $(1))),$(notdir $(1))).flat
+endef
+
+define aapt2-link
+$(hide) $(AAPT2) link -o $@ \
+  $(PRIVATE_AAPT_FLAGS) \
+  $(addprefix --manifest ,$(PRIVATE_ANDROID_MANIFEST)) \
+  $(addprefix -I ,$(PRIVATE_AAPT_INCLUDES)) \
+  $(addprefix -I ,$(PRIVATE_SHARED_ANDROID_LIBRARIES)) \
+  $(addprefix --java ,$(PRIVATE_SOURCE_INTERMEDIATES_DIR)) \
+  $(addprefix --proguard ,$(PRIVATE_PROGUARD_OPTIONS_FILE)) \
+  $(addprefix --min-sdk-version ,$(PRIVATE_DEFAULT_APP_TARGET_SDK)) \
+  $(addprefix --target-sdk-version ,$(PRIVATE_DEFAULT_APP_TARGET_SDK)) \
+  $(if $(filter --product,$(PRIVATE_AAPT_FLAGS)),,$(addprefix --product ,$(PRIVATE_TARGET_AAPT_CHARACTERISTICS))) \
+  $(addprefix -c ,$(PRIVATE_PRODUCT_AAPT_CONFIG)) \
+  $(addprefix --preferred-density ,$(PRIVATE_PRODUCT_AAPT_PREF_CONFIG)) \
+  $(if $(filter --version-code,$(PRIVATE_AAPT_FLAGS)),,--version-code $(PLATFORM_SDK_VERSION)) \
+  $(if $(filter --version-name,$(PRIVATE_AAPT_FLAGS)),,--version-name $(APPS_DEFAULT_VERSION_NAME)) \
+  $(addprefix --rename-manifest-package ,$(PRIVATE_MANIFEST_PACKAGE_NAME)) \
+  $(addprefix --rename-instrumentation-target-package ,$(PRIVATE_MANIFEST_INSTRUMENTATION_FOR)) \
+  $(addprefix -R , $(PRIVATE_OVERLAY_FLAT)) \
+  $(PRIVATE_RES_FLAT)
+endef
+
+###########################################################
 xlint_unchecked := -Xlint:unchecked
 
 # emit-line, <word list>, <output file>
@@ -1868,7 +1948,8 @@
         @$(call emit-line,$(wordlist 4601,4800,$(1)),$(2))
         @$(call emit-line,$(wordlist 4801,5000,$(1)),$(2))
         @$(call emit-line,$(wordlist 5001,5200,$(1)),$(2))
-        @$(if $(wordlist 5201,5202,$(1)),$(error Too many words ($(words $(1)))))
+        @$(call emit-line,$(wordlist 5201,5400,$(1)),$(2))
+        @$(if $(wordlist 5401,5402,$(1)),$(error Too many words ($(words $(1)))))
 endef
 
 # For a list of jar files, unzip them to a specified directory,
@@ -2232,7 +2313,7 @@
     $(addprefix -I , $(PRIVATE_AAPT_INCLUDES)) \
     $(addprefix --min-sdk-version , $(PRIVATE_DEFAULT_APP_TARGET_SDK)) \
     $(addprefix --target-sdk-version , $(PRIVATE_DEFAULT_APP_TARGET_SDK)) \
-    $(if $(filter --product,$(PRIVATE_AAPT_FLAGS)),,$(addprefix --product , $(TARGET_AAPT_CHARACTERISTICS))) \
+    $(if $(filter --product,$(PRIVATE_AAPT_FLAGS)),,$(addprefix --product , $(PRIVATE_TARGET_AAPT_CHARACTERISTICS))) \
     $(if $(filter --version-code,$(PRIVATE_AAPT_FLAGS)),,--version-code $(PLATFORM_SDK_VERSION)) \
     $(if $(filter --version-name,$(PRIVATE_AAPT_FLAGS)),,--version-name $(APPS_DEFAULT_VERSION_NAME)) \
     $(addprefix --rename-manifest-package , $(PRIVATE_MANIFEST_PACKAGE_NAME)) \
diff --git a/core/dex_preopt_libart.mk b/core/dex_preopt_libart.mk
index b286cb7..feed330 100644
--- a/core/dex_preopt_libart.mk
+++ b/core/dex_preopt_libart.mk
@@ -67,6 +67,13 @@
 LIBART_TARGET_BOOT_DEX_LOCATIONS := $(foreach jar,$(LIBART_TARGET_BOOT_JARS),/$(DEXPREOPT_BOOT_JAR_DIR)/$(jar).jar)
 LIBART_TARGET_BOOT_DEX_FILES := $(foreach jar,$(LIBART_TARGET_BOOT_JARS),$(call intermediates-dir-for,JAVA_LIBRARIES,$(jar),,COMMON)/javalib.jar)
 
+# dex preopt on the bootclasspath produces multiple files.  The first dex file
+# is converted into to boot.art (to match the legacy assumption that boot.art
+# exists), and the rest are converted to boot-<name>.art.
+# In addition, each .art file has an associated .oat file.
+LIBART_TARGET_BOOT_ART_EXTRA_FILES := $(foreach jar,$(wordlist 2,999,$(LIBART_TARGET_BOOT_JARS)),boot-$(jar).art boot-$(jar).oat)
+LIBART_TARGET_BOOT_ART_EXTRA_FILES += boot.oat
+
 my_2nd_arch_prefix :=
 include $(BUILD_SYSTEM)/dex_preopt_libart_boot.mk
 
diff --git a/core/dex_preopt_libart_boot.mk b/core/dex_preopt_libart_boot.mk
index 1c8fb40..b51ab8a 100644
--- a/core/dex_preopt_libart_boot.mk
+++ b/core/dex_preopt_libart_boot.mk
@@ -28,6 +28,8 @@
 $(my_2nd_arch_prefix)LIBART_TARGET_BOOT_OAT_UNSTRIPPED := $(TARGET_OUT_UNSTRIPPED)$(patsubst %.art,%.oat,$($(my_2nd_arch_prefix)LIBART_BOOT_IMAGE_FILENAME))
 
 $(my_2nd_arch_prefix)DEFAULT_DEX_PREOPT_INSTALLED_IMAGE := $(PRODUCT_OUT)$($(my_2nd_arch_prefix)LIBART_BOOT_IMAGE_FILENAME)
+$(my_2nd_arch_prefix)LIBART_TARGET_BOOT_ART_EXTRA_INSTALLED_FILES := $(addprefix $(dir $($(my_2nd_arch_prefix)DEFAULT_DEX_PREOPT_INSTALLED_IMAGE)),\
+    $(LIBART_TARGET_BOOT_ART_EXTRA_FILES))
 
 # If we have a compiled-classes file, create a parameter.
 COMPILED_CLASSES_FLAGS :=
@@ -35,10 +37,18 @@
   COMPILED_CLASSES_FLAGS := --compiled-classes=$(COMPILED_CLASSES)
 endif
 
-# The rule to install boot.art and boot.oat
-$($(my_2nd_arch_prefix)DEFAULT_DEX_PREOPT_INSTALLED_IMAGE) : $($(my_2nd_arch_prefix)DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME) | $(ACP)
-	$(hide) $(ACP) -fp $(dir $<)/*.art $(dir $@)
-	$(hide) $(ACP) -fp $(dir $<)/*.oat $(dir $@)
+# The rule to install boot.art
+# Depends on installed boot.oat, boot-*.art, boot-*.oat
+$($(my_2nd_arch_prefix)DEFAULT_DEX_PREOPT_INSTALLED_IMAGE) : $($(my_2nd_arch_prefix)DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME) | $(ACP) $($(my_2nd_arch_prefix)LIBART_TARGET_BOOT_ART_EXTRA_INSTALLED_FILES)
+	@echo "Install: $@"
+	$(copy-file-to-target)
+
+# The rule to install boot.oat, boot-*.art, boot-*.oat
+# Depends on built-but-not-installed boot.art
+$($(my_2nd_arch_prefix)LIBART_TARGET_BOOT_ART_EXTRA_INSTALLED_FILES) : $($(my_2nd_arch_prefix)DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME)  | $(ACP)
+	@echo "Install: $@"
+	@mkdir -p $(dir $@)
+	$(hide) $(ACP) -fp $(dir $<)$(notdir $@) $@
 
 $($(my_2nd_arch_prefix)DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME): PRIVATE_2ND_ARCH_VAR_PREFIX := $(my_2nd_arch_prefix)
 # Use dex2oat debug version for better error reporting
@@ -49,7 +59,8 @@
 	@rm -f $(dir $@)/*.art $(dir $@)/*.oat
 	@rm -f $(dir $($(PRIVATE_2ND_ARCH_VAR_PREFIX)LIBART_TARGET_BOOT_OAT_UNSTRIPPED))/*.art
 	@rm -f $(dir $($(PRIVATE_2ND_ARCH_VAR_PREFIX)LIBART_TARGET_BOOT_OAT_UNSTRIPPED))/*.oat
-	$(hide) $(DEX2OAT) --runtime-arg -Xms$(DEX2OAT_IMAGE_XMS) --runtime-arg -Xmx$(DEX2OAT_IMAGE_XMX) \
+	$(hide) ANDROID_LOG_TAGS="*:e" $(DEX2OAT) --runtime-arg -Xms$(DEX2OAT_IMAGE_XMS) \
+		--runtime-arg -Xmx$(DEX2OAT_IMAGE_XMX) \
 		--image-classes=$(PRELOADED_CLASSES) \
 		$(addprefix --dex-file=,$(LIBART_TARGET_BOOT_DEX_FILES)) \
 		$(addprefix --dex-location=,$(LIBART_TARGET_BOOT_DEX_LOCATIONS)) \
diff --git a/core/dpi_specific_apk.mk b/core/dpi_specific_apk.mk
index dfd55cd..f4fd082 100644
--- a/core/dpi_specific_apk.mk
+++ b/core/dpi_specific_apk.mk
@@ -16,7 +16,7 @@
 $(built_dpi_apk): PRIVATE_RESOURCE_DIR := $(LOCAL_RESOURCE_DIR)
 $(built_dpi_apk): PRIVATE_ASSET_DIR := $(LOCAL_ASSET_DIR)
 $(built_dpi_apk): PRIVATE_AAPT_INCLUDES := $(all_library_res_package_exports)
-ifneq (,$(filter-out current system_current, $(LOCAL_SDK_VERSION)))
+ifneq (,$(filter-out current system_current test_current, $(LOCAL_SDK_VERSION)))
 $(built_dpi_apk): PRIVATE_DEFAULT_APP_TARGET_SDK := $(LOCAL_SDK_VERSION)
 else
 $(built_dpi_apk): PRIVATE_DEFAULT_APP_TARGET_SDK := $(DEFAULT_APP_TARGET_SDK)
diff --git a/core/droiddoc.mk b/core/droiddoc.mk
index 0f18a58..f98df12 100644
--- a/core/droiddoc.mk
+++ b/core/droiddoc.mk
@@ -68,6 +68,9 @@
   else ifeq ($(LOCAL_SDK_VERSION)$(TARGET_BUILD_APPS),system_current)
     LOCAL_JAVA_LIBRARIES := android_system_stubs_current $(LOCAL_JAVA_LIBRARIES)
     $(full_target): PRIVATE_BOOTCLASSPATH := $(call java-lib-files, android_system_stubs_current)
+  else ifeq ($(LOCAL_SDK_VERSION)$(TARGET_BUILD_APPS),test_current)
+    LOCAL_JAVA_LIBRARIES := android_test_stubs_current $(LOCAL_JAVA_LIBRARIES)
+    $(full_target): PRIVATE_BOOTCLASSPATH := $(call java-lib-files, android_test_stubs_current)
   else
     LOCAL_JAVA_LIBRARIES := sdk_v$(LOCAL_SDK_VERSION) $(LOCAL_JAVA_LIBRARIES)
     $(full_target): PRIVATE_BOOTCLASSPATH := $(call java-lib-files, sdk_v$(LOCAL_SDK_VERSION))
@@ -99,6 +102,7 @@
 
 $(full_target): PRIVATE_OUT_DIR := $(out_dir)
 $(full_target): PRIVATE_DROIDDOC_OPTIONS := $(LOCAL_DROIDDOC_OPTIONS)
+$(full_target): PRIVATE_STUB_OUT_DIR := $(LOCAL_DROIDDOC_STUB_OUT_DIR)
 
 # Lists the input files for the doc build into a text file
 # suitable for the @ syntax of javadoc.
@@ -164,6 +168,7 @@
         $(LOCAL_ADDITIONAL_DEPENDENCIES)
 	@echo Docs droiddoc: $(PRIVATE_OUT_DIR)
 	$(hide) mkdir -p $(dir $@)
+	$(addprefix $(hide) rm -rf ,$(PRIVATE_STUB_OUT_DIR))
 	$(call prepare-doc-source-list,$(PRIVATE_SRC_LIST_FILE),$(PRIVATE_JAVA_FILES), \
 			$(PRIVATE_SOURCE_INTERMEDIATES_DIR) $(PRIVATE_ADDITIONAL_JAVA_DIR))
 	$(hide) ( \
@@ -185,6 +190,7 @@
                 -d $(PRIVATE_OUT_DIR) \
                 $(PRIVATE_CURRENT_BUILD) $(PRIVATE_CURRENT_TIME) \
                 $(PRIVATE_DROIDDOC_OPTIONS) \
+                $(addprefix -stubs ,$(PRIVATE_STUB_OUT_DIR)) \
         && touch -f $@ \
     ) || (rm -rf $(PRIVATE_OUT_DIR) $(PRIVATE_SRC_LIST_FILE); exit 45)
 
diff --git a/core/host_dalvik_java_library.mk b/core/host_dalvik_java_library.mk
index e172018..3cafb61 100644
--- a/core/host_dalvik_java_library.mk
+++ b/core/host_dalvik_java_library.mk
@@ -36,8 +36,7 @@
 endif
 
 ifneq ($(LOCAL_NO_STANDARD_LIBRARIES),true)
-  LOCAL_JAVA_LIBRARIES +=  core-oj-hostdex
-  LOCAL_JAVA_LIBRARIES +=  core-libart-hostdex
+  LOCAL_JAVA_LIBRARIES += core-oj-hostdex core-libart-hostdex
 endif
 
 full_classes_jack := $(intermediates.COMMON)/classes.jack
diff --git a/core/java.mk b/core/java.mk
index 189d13f..ebe0aaf 100644
--- a/core/java.mk
+++ b/core/java.mk
@@ -31,6 +31,8 @@
         LOCAL_JAVA_LIBRARIES := android_stubs_current $(LOCAL_JAVA_LIBRARIES)
       else ifeq ($(LOCAL_SDK_VERSION)$(TARGET_BUILD_APPS),system_current)
         LOCAL_JAVA_LIBRARIES := android_system_stubs_current $(LOCAL_JAVA_LIBRARIES)
+      else ifeq ($(LOCAL_SDK_VERSION)$(TARGET_BUILD_APPS),test_current)
+        LOCAL_JAVA_LIBRARIES := android_test_stubs_current $(LOCAL_JAVA_LIBRARIES)
       else
         LOCAL_JAVA_LIBRARIES := sdk_v$(LOCAL_SDK_VERSION) $(LOCAL_JAVA_LIBRARIES)
       endif
@@ -39,6 +41,8 @@
         my_jack_min_sdk_version := $(PLATFORM_JACK_MIN_SDK_VERSION)
       else ifeq ($(LOCAL_SDK_VERSION),system_current)
         my_jack_min_sdk_version := $(PLATFORM_JACK_MIN_SDK_VERSION)
+      else ifeq ($(LOCAL_SDK_VERSION),test_current)
+        my_jack_min_sdk_version := $(PLATFORM_JACK_MIN_SDK_VERSION)
       else
         my_jack_min_sdk_version := $(LOCAL_SDK_VERSION)
       endif
@@ -64,10 +68,12 @@
 endif
 endif
 
-# LOCAL_STATIC_JAVA_AAR_LIBRARIES are special LOCAL_STATIC_JAVA_LIBRARIES
-LOCAL_STATIC_JAVA_LIBRARIES := $(strip $(LOCAL_STATIC_JAVA_LIBRARIES) $(LOCAL_STATIC_JAVA_AAR_LIBRARIES))
-
-LOCAL_JAVA_LIBRARIES := $(sort $(LOCAL_JAVA_LIBRARIES))
+# LOCAL_STATIC_JAVA_AAR_LIBRARIES and LOCAL_STATIC_ANDROID_LIBRARIES are also LOCAL_STATIC_JAVA_LIBRARIES.
+LOCAL_STATIC_JAVA_LIBRARIES := $(strip $(LOCAL_STATIC_JAVA_LIBRARIES) \
+    $(LOCAL_STATIC_JAVA_AAR_LIBRARIES) \
+    $(LOCAL_STATIC_ANDROID_LIBRARIES))
+# LOCAL_SHARED_ANDROID_LIBRARIES are also LOCAL_JAVA_LIBRARIES.
+LOCAL_JAVA_LIBRARIES := $(sort $(LOCAL_JAVA_LIBRARIES) $(LOCAL_SHARED_ANDROID_LIBRARIES))
 
 LOCAL_BUILT_MODULE_STEM := $(strip $(LOCAL_BUILT_MODULE_STEM))
 ifeq ($(LOCAL_BUILT_MODULE_STEM),)
@@ -133,6 +139,7 @@
 # Because names of the java files from RenderScript are unknown until the
 # .rs file(s) are compiled, we have to depend on a timestamp file.
 RenderScript_file_stamp :=
+rs_generated_res_dir :=
 rs_compatibility_jni_libs :=
 ifneq ($(renderscript_sources),)
 renderscript_sources_fullpath := $(addprefix $(LOCAL_PATH)/, $(renderscript_sources))
@@ -147,7 +154,7 @@
 else
   ifneq (,$(LOCAL_SDK_VERSION))
     # Set target-api for LOCAL_SDK_VERSIONs other than current.
-    ifneq (,$(filter-out current system_current, $(LOCAL_SDK_VERSION)))
+    ifneq (,$(filter-out current system_current test_current, $(LOCAL_SDK_VERSION)))
       renderscript_target_api := $(LOCAL_SDK_VERSION)
     endif
   endif  # LOCAL_SDK_VERSION is set
@@ -172,7 +179,7 @@
 renderscript_flags += $(LOCAL_RENDERSCRIPT_FLAGS)
 
 # prepend the RenderScript system include path
-ifneq ($(filter-out current system_current,$(LOCAL_SDK_VERSION))$(if $(TARGET_BUILD_APPS),$(filter current system_current,$(LOCAL_SDK_VERSION))),)
+ifneq ($(filter-out current system_current test_current,$(LOCAL_SDK_VERSION))$(if $(TARGET_BUILD_APPS),$(filter current system_current test_current,$(LOCAL_SDK_VERSION))),)
 # if a numeric LOCAL_SDK_VERSION, or current LOCAL_SDK_VERSION with TARGET_BUILD_APPS
 LOCAL_RENDERSCRIPT_INCLUDES := \
     $(HISTORICAL_SDK_VERSIONS_ROOT)/renderscript/clang-include \
@@ -265,7 +272,8 @@
 
 LOCAL_INTERMEDIATE_TARGETS += $(RenderScript_file_stamp)
 # Make sure the generated resource will be added to the apk.
-LOCAL_RESOURCE_DIR := $(LOCAL_INTERMEDIATE_SOURCE_DIR)/renderscript/res $(LOCAL_RESOURCE_DIR)
+rs_generated_res_dir := $(renderscript_intermediate.COMMON)/res
+LOCAL_RESOURCE_DIR := $(rs_generated_res_dir) $(LOCAL_RESOURCE_DIR)
 endif
 
 
@@ -280,7 +288,7 @@
 
 aidl_preprocess_import :=
 ifdef LOCAL_SDK_VERSION
-ifneq ($(filter current system_current, $(LOCAL_SDK_VERSION)$(TARGET_BUILD_APPS)),)
+ifneq ($(filter current system_current test_current, $(LOCAL_SDK_VERSION)$(TARGET_BUILD_APPS)),)
   # LOCAL_SDK_VERSION is current and no TARGET_BUILD_APPS
   aidl_preprocess_import := $(TARGET_OUT_COMMON_INTERMEDIATES)/framework.aidl
 else
@@ -444,7 +452,7 @@
 ifneq (,$(filter android-support-%,$(LOCAL_STATIC_JAVA_LIBRARIES)))
 ifdef LOCAL_SDK_VERSION
 ifdef TARGET_BUILD_APPS
-ifeq (,$(filter current system_current, $(LOCAL_SDK_VERSION)))
+ifeq (,$(filter current system_current test_current, $(LOCAL_SDK_VERSION)))
   my_support_library_sdk_raise := $(call java-lib-files, sdk_vcurrent)
 endif
 else
@@ -542,13 +550,13 @@
 	$(hide) $(ACP) -fp $(dir $<)/classes*.dex $(dir $@)
 
 findbugs_xml := $(intermediates.COMMON)/findbugs.xml
-$(findbugs_xml) : PRIVATE_AUXCLASSPATH := $(addprefix -auxclasspath ,$(strip \
-								$(call normalize-path-list,$(filter %.jar,\
-										$(full_java_libs)))))
-$(findbugs_xml) : $(full_classes_jar)
+$(findbugs_xml): PRIVATE_AUXCLASSPATH := $(addprefix -auxclasspath ,$(strip \
+    $(call normalize-path-list,$(filter %.jar,$(full_java_libs)))))
+$(findbugs_xml): PRIVATE_FINDBUGS_FLAGS := $(LOCAL_FINDBUGS_FLAGS)
+$(findbugs_xml) : $(full_classes_jar) $(filter %.xml, $(LOCAL_FINDBUGS_FLAGS))
 	@echo Findbugs: $@
 	$(hide) $(FINDBUGS) -textui -effort:min -xml:withMessages \
-		$(PRIVATE_AUXCLASSPATH) \
+		$(PRIVATE_AUXCLASSPATH) $(PRIVATE_FINDBUGS_FLAGS) \
 		$< \
 		> $@
 
diff --git a/core/java_common.mk b/core/java_common.mk
index f983935..ca5a10e 100644
--- a/core/java_common.mk
+++ b/core/java_common.mk
@@ -176,9 +176,11 @@
 my_bootclasspath := $(call java-lib-files,android_stubs_current)
 else ifeq ($(LOCAL_SDK_VERSION)$(TARGET_BUILD_APPS),system_current)
 my_bootclasspath := $(call java-lib-files,android_system_stubs_current)
+else ifeq ($(LOCAL_SDK_VERSION)$(TARGET_BUILD_APPS),test_current)
+my_bootclasspath := $(call java-lib-files,android_test_stubs_current)
 else
 my_bootclasspath := $(call java-lib-files,sdk_v$(LOCAL_SDK_VERSION))
-endif # current or system_current
+endif # current, system_current, or test_current
 endif # LOCAL_SDK_VERSION
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_BOOTCLASSPATH := -bootclasspath $(my_bootclasspath)
 
@@ -275,9 +277,10 @@
 endif
 endif
 
-$(LOCAL_INTERMEDIATE_TARGETS) : PRIVATE_AAPT_FLAGS := $(LOCAL_AAPT_FLAGS) $(PRODUCT_AAPT_FLAGS)
-$(LOCAL_INTERMEDIATE_TARGETS) : PRIVATE_MANIFEST_PACKAGE_NAME := $(LOCAL_MANIFEST_PACKAGE_NAME)
-$(LOCAL_INTERMEDIATE_TARGETS) : PRIVATE_MANIFEST_INSTRUMENTATION_FOR := $(LOCAL_MANIFEST_INSTRUMENTATION_FOR)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_AAPT_FLAGS := $(LOCAL_AAPT_FLAGS) $(PRODUCT_AAPT_FLAGS)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_TARGET_AAPT_CHARACTERISTICS := $(TARGET_AAPT_CHARACTERISTICS)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_MANIFEST_PACKAGE_NAME := $(LOCAL_MANIFEST_PACKAGE_NAME)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_MANIFEST_INSTRUMENTATION_FOR := $(LOCAL_MANIFEST_INSTRUMENTATION_FOR)
 
 ifdef aidl_sources
 ALL_MODULES.$(my_register_name).AIDL_FILES := $(aidl_sources)
@@ -287,7 +290,7 @@
 endif
 endif  # !LOCAL_IS_HOST_MODULE
 
-$(LOCAL_INTERMEDIATE_TARGETS) : PRIVATE_ALL_JAVA_LIBRARIES := $(full_java_libs)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ALL_JAVA_LIBRARIES := $(full_java_libs)
 
 ALL_MODULES.$(my_register_name).INTERMEDIATE_SOURCE_DIR := \
     $(ALL_MODULES.$(my_register_name).INTERMEDIATE_SOURCE_DIR) $(LOCAL_INTERMEDIATE_SOURCE_DIR)
@@ -311,7 +314,7 @@
 ifeq ($(LOCAL_NO_STANDARD_LIBRARIES),true)
 my_bootclasspath :=
 else
-my_bootclasspath :=  $(call jack-lib-files,core-oj):$(call jack-lib-files,core-libart)
+my_bootclasspath := $(call jack-lib-files,core-oj core-libart)
 endif
 else  # LOCAL_SDK_VERSION
 ifeq ($(LOCAL_SDK_VERSION)$(TARGET_BUILD_APPS),current)
@@ -319,9 +322,11 @@
 my_bootclasspath := $(call jack-lib-files,android_stubs_current)
 else ifeq ($(LOCAL_SDK_VERSION)$(TARGET_BUILD_APPS),system_current)
 my_bootclasspath := $(call jack-lib-files,android_system_stubs_current)
+else ifeq ($(LOCAL_SDK_VERSION)$(TARGET_BUILD_APPS),test_current)
+my_bootclasspath := $(call jack-lib-files,android_test_stubs_current)
 else
 my_bootclasspath :=$(call jack-lib-files,sdk_v$(LOCAL_SDK_VERSION))
-endif # current or system_current
+endif # current, system_current, or test_current
 endif # LOCAL_SDK_VERSION
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_BOOTCLASSPATH_JAVA_LIBRARIES := $(my_bootclasspath)
 
@@ -338,7 +343,7 @@
 ifeq ($(LOCAL_NO_STANDARD_LIBRARIES),true)
 my_bootclasspath :=
 else
-my_bootclasspath := $(call jack-lib-files,core-oj-hostdex,$(LOCAL_IS_HOST_MODULE)):$(call jack-lib-files,core-libart-hostdex,$(LOCAL_IS_HOST_MODULE))
+my_bootclasspath := $(call jack-lib-files,core-oj-hostdex core-libart-hostdex,$(LOCAL_IS_HOST_MODULE))
 endif
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_BOOTCLASSPATH_JAVA_LIBRARIES := $(my_bootclasspath)
 # Compiling against the final jack library. If we want to add support for obfuscated library
@@ -381,7 +386,7 @@
 endif  # !LOCAL_IS_HOST_MODULE
 
 # Propagate local configuration options to this target.
-$(LOCAL_INTERMEDIATE_TARGETS) : PRIVATE_ALL_JACK_LIBRARIES:= $(full_jack_libs)
-$(LOCAL_INTERMEDIATE_TARGETS) : PRIVATE_JARJAR_RULES := $(LOCAL_JARJAR_RULES)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ALL_JACK_LIBRARIES:= $(full_jack_libs)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_JARJAR_RULES := $(LOCAL_JARJAR_RULES)
 
 endif  # need_compile_java
diff --git a/core/main.mk b/core/main.mk
index d74d8bb..02f43d7 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -122,6 +122,8 @@
 
 # CTS-specific config.
 -include cts/build/config.mk
+# VTS-specific config.
+-include test/vts/tools/vts-tradefed/build/config.mk
 
 # This allows us to force a clean build - included after the config.mk
 # environment setup is done, but before we generate any dependencies.  This
@@ -209,11 +211,11 @@
 
 # Check for the current jdk
 ifeq ($(requires_openjdk), true)
-# The user asked for java7 openjdk, so check that the host
-# java version is really openjdk
+# The user asked for openjdk, so check that the host
+# java version is really openjdk and not some other JDK.
 ifeq ($(shell echo '$(java_version_str)' | grep -i openjdk),)
 $(info ************************************************************)
-$(info You asked for an OpenJDK 7 build but your version is)
+$(info You asked for an OpenJDK based build but your version is)
 $(info $(java_version_str).)
 $(info ************************************************************)
 $(error stop)
@@ -327,6 +329,14 @@
 # Jacoco package name for Jack
 -include $(TOPDIR)external/jacoco/config.mk
 
+#
+# -----------------------------------------------------------------
+# Enable dynamic linker developer warnings for all builds except
+# final release.
+ifneq ($(PLATFORM_VERSION_CODENAME),REL)
+  ADDITIONAL_BUILD_PROPERTIES += ro.bionic.ld.warning=1
+endif
+
 # -----------------------------------------------------------------
 ###
 ### In this section we set up the things that are different
@@ -375,18 +385,6 @@
     enable_target_debugging :=
   endif
 
-  # Turn on Dalvik preoptimization for user builds, but only if not
-  # explicitly disabled and the build is running on Linux (since host
-  # Dalvik isn't built for non-Linux hosts).
-  ifeq (,$(WITH_DEXPREOPT))
-    ifeq ($(user_variant),user)
-      ifeq ($(HOST_OS),linux)
-        # TODO: turn on WITH_DEXPREOPT for libart user builds.
-        # WITH_DEXPREOPT := true
-      endif
-    endif
-  endif
-
   # Disallow mock locations by default for user builds
   ADDITIONAL_DEFAULT_PROPERTIES += ro.allow.mock.location=0
 
@@ -422,12 +420,9 @@
           ro.setupwizard.mode=OPTIONAL
 endif
 ifndef is_sdk_build
-  # Don't verify or compile the image on eng builds to speed startup.
+  # To speedup startup of non-preopted builds, don't verify or compile the boot image.
   ADDITIONAL_BUILD_PROPERTIES += dalvik.vm.image-dex2oat-filter=verify-at-runtime
-  # Don't verify or compile apps on eng builds to speed startup.
-  ADDITIONAL_BUILD_PROPERTIES += dalvik.vm.dex2oat-filter=verify-at-runtime
 endif
-  ADDITIONAL_BUILD_PROPERTIES += dalvik.vm.usejit=true
 endif
 
 ## sdk ##
diff --git a/core/ninja.mk b/core/ninja.mk
index f5d9c89..0fea1ad 100644
--- a/core/ninja.mk
+++ b/core/ninja.mk
@@ -35,6 +35,7 @@
 	eng \
 	fusion \
 	oem_image \
+	old-cts \
 	online-system-api-sdk-docs \
 	pdk \
 	platform \
@@ -140,7 +141,7 @@
 .PHONY: ninja_wrapper
 ninja_wrapper: $(COMBINED_BUILD_NINJA) $(MAKEPARALLEL)
 	@echo Starting build with ninja
-	+$(hide) export NINJA_STATUS="$(NINJA_STATUS)" && source $(KATI_ENV_SH) && $(NINJA_MAKEPARALLEL) $(NINJA) -d keepdepfile $(NINJA_GOALS) -C $(TOP) -f $(COMBINED_BUILD_NINJA) $(NINJA_ARGS)
+	+$(hide) export NINJA_STATUS="$(NINJA_STATUS)" && source $(KATI_ENV_SH) && $(NINJA_MAKEPARALLEL) $(NINJA) $(NINJA_GOALS) -C $(TOP) -f $(COMBINED_BUILD_NINJA) $(NINJA_ARGS)
 
 # Dummy Android.mk and CleanSpec.mk files so that kati won't recurse into the
 # out directory
diff --git a/core/package_internal.mk b/core/package_internal.mk
index 65b65be..428a17c 100644
--- a/core/package_internal.mk
+++ b/core/package_internal.mk
@@ -57,6 +57,9 @@
 endif
 LOCAL_MODULE_CLASS := APPS
 
+intermediates := $(call local-intermediates-dir)
+intermediates.COMMON := $(call local-intermediates-dir,COMMON)
+
 #################################
 include $(BUILD_SYSTEM)/configure_local_jack.mk
 #################################
@@ -112,6 +115,45 @@
 need_compile_asset := true
 endif
 
+my_res_package :=
+ifdef LOCAL_USE_AAPT2
+# In aapt2 the last takes precedence.
+my_resource_dirs := $(call reverse-list,$(LOCAL_RESOURCE_DIR))
+my_res_dir :=
+my_overlay_res_dirs :=
+
+ifneq ($(LOCAL_STATIC_ANDROID_LIBRARIES),)
+# If we are using static android libraries, every source file becomes an overlay.
+# This is to emulate old AAPT behavior which simulated library support.
+my_res_dir :=
+my_overlay_res_dirs := $(my_resource_dirs)
+else
+# Without static libraries, the first directory is our directory, which can then be
+# overlaid by the rest. (First directory in my_resource_dirs is last directory in
+# $(LOCAL_RESOURCE_DIR) due to it being reversed.
+my_res_dir := $(firstword $(my_resource_dirs))
+my_overlay_res_dirs := $(wordlist 2,999,$(my_resource_dirs))
+endif
+
+my_overlay_resources := $(strip \
+  $(foreach d,$(my_overlay_res_dirs),\
+    $(addprefix $(d)/, \
+        $(call find-subdir-assets,$(d)))))
+
+my_res_resources := $(strip \
+    $(addprefix $(my_res_dir)/, \
+        $(call find-subdir-assets,$(my_res_dir))))
+
+all_resources := $(strip $(my_res_resources) $(my_overlay_resources))
+
+# The linked resource package.
+my_res_package := $(intermediates)/package-res.apk
+LOCAL_INTERMEDIATE_TARGETS += $(my_res_package)
+
+# Always run aapt2, because we need to at least compile the AndroidManifest.xml.
+need_compile_res := true
+
+else  # LOCAL_USE_AAPT2
 all_resources := $(strip \
     $(foreach dir, $(LOCAL_RESOURCE_DIR), \
       $(addprefix $(dir)/, \
@@ -121,13 +163,14 @@
        ) \
      ))
 
+endif  # LOCAL_USE_AAPT2
+
 ifneq ($(all_resources),)
   need_compile_res := true
 endif
 
 all_res_assets := $(strip $(all_assets) $(all_resources))
 
-intermediates.COMMON := $(call local-intermediates-dir,COMMON)
 
 # If no assets or resources were found, clear the directory variables so
 # we don't try to build them.
@@ -201,6 +244,24 @@
 
 rs_compatibility_jni_libs :=
 
+ifeq ($(LOCAL_DATA_BINDING),true)
+data_binding_intermediates := $(intermediates.COMMON)/data-binding
+
+LOCAL_JAVACFLAGS += -processorpath $(DATA_BINDING_COMPILER) -s $(data_binding_intermediates)/anno-src
+LOCAL_JACK_FLAGS += --processorpath $(DATA_BINDING_COMPILER)
+
+LOCAL_STATIC_JAVA_LIBRARIES += databinding-baselibrary
+LOCAL_STATIC_JAVA_AAR_LIBRARIES += databinding-library databinding-adapters
+
+data_binding_res_in := $(LOCAL_RESOURCE_DIR)
+data_binding_res_out := $(data_binding_intermediates)/res
+
+# Replace with the processed merged res dir.
+LOCAL_RESOURCE_DIR := $(data_binding_res_out)
+
+LOCAL_AAPT_FLAGS += --auto-add-overlay --extra-packages com.android.databinding.library
+endif  # LOCAL_DATA_BINDING
+
 include $(BUILD_SYSTEM)/android_manifest.mk
 
 #################################
@@ -214,7 +275,7 @@
 
 $(LOCAL_INTERMEDIATE_TARGETS): \
     PRIVATE_ANDROID_MANIFEST := $(full_android_manifest)
-ifneq (,$(filter-out current system_current, $(LOCAL_SDK_VERSION)))
+ifneq (,$(filter-out current system_current test_current, $(LOCAL_SDK_VERSION)))
 $(LOCAL_INTERMEDIATE_TARGETS): \
     PRIVATE_DEFAULT_APP_TARGET_SDK := $(LOCAL_SDK_VERSION)
 else
@@ -222,7 +283,43 @@
     PRIVATE_DEFAULT_APP_TARGET_SDK := $(DEFAULT_APP_TARGET_SDK)
 endif
 
+ifeq ($(LOCAL_DATA_BINDING),true)
+data_binding_stamp := $(data_binding_intermediates)/data-binding.stamp
+$(data_binding_stamp): PRIVATE_INTERMEDIATES := $(data_binding_intermediates)
+$(data_binding_stamp): PRIVATE_MANIFEST := $(full_android_manifest)
+# Generate code into $(LOCAL_INTERMEDIATE_SOURCE_DIR) so that the generated .java files
+# will be automatically picked up by function compile-java.
+$(data_binding_stamp): PRIVATE_SRC_OUT := $(LOCAL_INTERMEDIATE_SOURCE_DIR)/data-binding
+$(data_binding_stamp): PRIVATE_XML_OUT := $(data_binding_intermediates)/xml
+$(data_binding_stamp): PRIVATE_RES_OUT := $(data_binding_res_out)
+$(data_binding_stamp): PRIVATE_RES_IN := $(data_binding_res_in)
+$(data_binding_stamp): PRIVATE_ANNO_SRC_DIR := $(data_binding_intermediates)/anno-src
+
+$(data_binding_stamp) : $(all_res_assets) $(full_android_manifest) \
+    $(DATA_BINDING_COMPILER)
+	@echo "Data-binding process: $@"
+	@rm -rf $(PRIVATE_INTERMEDIATES) $(PRIVATE_SRC_OUT) && \
+	  mkdir -p $(PRIVATE_INTERMEDIATES) $(PRIVATE_SRC_OUT) \
+	      $(PRIVATE_XML_OUT) $(PRIVATE_RES_OUT) $(PRIVATE_ANNO_SRC_DIR)
+	$(hide) java -classpath $(DATA_BINDING_COMPILER) android.databinding.tool.MakeCopy \
+	  $(PRIVATE_MANIFEST) $(PRIVATE_SRC_OUT) $(PRIVATE_XML_OUT) $(PRIVATE_RES_OUT) $(PRIVATE_RES_IN)
+	$(hide) touch $@
+
+# Make sure the data-binding process happens before javac and generation of R.java.
+$(R_file_stamp) $(full_classes_compiled_jar) : $(data_binding_stamp)
+# The dependency path when jack is enabled
+$(built_dex_intermediate) : $(data_binding_stamp)
+endif  # LOCAL_DATA_BINDING
+
 ifeq ($(need_compile_res),true)
+ifdef LOCAL_USE_AAPT2
+my_compiled_res_base_dir := $(intermediates)/flat-res
+my_generated_res_dirs := $(rs_generated_res_dir)
+my_generated_res_dirs_deps := $(RenderScript_file_stamp)
+# Add AAPT2 link specific flags.
+$(my_res_package): PRIVATE_AAPT_FLAGS := $(LOCAL_AAPT_FLAGS) --no-static-lib-packages
+include $(BUILD_SYSTEM)/aapt2.mk
+else  # LOCAL_USE_AAPT2
 
 # Since we don't know where the real R.java file is going to end up,
 # we need to use another file to stand in its place.  We'll just
@@ -240,23 +337,7 @@
 	@echo "target R.java/Manifest.java: $(PRIVATE_MODULE) ($@)"
 	@rm -rf $@ && mkdir -p $(dir $@)
 	$(create-resource-java-files)
-	$(hide) for GENERATED_MANIFEST_FILE in `find $(PRIVATE_SOURCE_INTERMEDIATES_DIR) \
-					-name Manifest.java 2> /dev/null`; do \
-		dir=`awk '/package/{gsub(/\./,"/",$$2);gsub(/;/,"",$$2);print $$2;exit}' $$GENERATED_MANIFEST_FILE`; \
-		mkdir -p $(TARGET_COMMON_OUT_ROOT)/R/$$dir; \
-		$(ACP) -fp $$GENERATED_MANIFEST_FILE $(TARGET_COMMON_OUT_ROOT)/R/$$dir; \
-	done;
-	$(hide) for GENERATED_R_FILE in `find $(PRIVATE_SOURCE_INTERMEDIATES_DIR) \
-					-name R.java 2> /dev/null`; do \
-		dir=`awk '/package/{gsub(/\./,"/",$$2);gsub(/;/,"",$$2);print $$2;exit}' $$GENERATED_R_FILE`; \
-		mkdir -p $(TARGET_COMMON_OUT_ROOT)/R/$$dir; \
-		$(ACP) -fp $$GENERATED_R_FILE $(TARGET_COMMON_OUT_ROOT)/R/$$dir \
-			|| exit 31; \
-		$(ACP) -fp $$GENERATED_R_FILE $@ || exit 32; \
-	done;
-	@# Ensure that the target file is always created, i.e. also in case we did not
-	@# enter the GENERATED_R_FILE-loop above. This avoids unnecessary rebuilding.
-	$(hide) touch $@
+	$(call find-generated-R.java)
 
 $(proguard_options_file): $(R_file_stamp)
 
@@ -278,6 +359,8 @@
 	$(add-assets-to-package)
 endif
 
+endif  # LOCAL_USE_AAPT2
+
 # Make sure to generate R.java before compiling.
 # Other modules should depend on the BUILT module if
 # they want to use this module's R.java file.
@@ -296,7 +379,7 @@
 # Most packages should link against the resources defined by framework-res.
 # Even if they don't have their own resources, they may use framework
 # resources.
-ifneq ($(filter-out current system_current,$(LOCAL_SDK_RES_VERSION))$(if $(TARGET_BUILD_APPS),$(filter current system_current,$(LOCAL_SDK_RES_VERSION))),)
+ifneq ($(filter-out current system_current test_current,$(LOCAL_SDK_RES_VERSION))$(if $(TARGET_BUILD_APPS),$(filter current system_current test_current,$(LOCAL_SDK_RES_VERSION))),)
 # for released sdk versions, the platform resources were built into android.jar.
 framework_res_package_export := \
     $(HISTORICAL_SDK_VERSIONS_ROOT)/$(LOCAL_SDK_RES_VERSION)/android.jar
@@ -319,10 +402,13 @@
     $(framework_res_package_export_deps) \
     $(foreach lib,$(LOCAL_RES_LIBRARIES),\
         $(call intermediates-dir-for,APPS,$(lib),,COMMON)/src/R.stamp)
-
 $(resource_export_package) $(R_file_stamp) $(LOCAL_BUILT_MODULE): $(all_library_res_package_export_deps)
 $(LOCAL_INTERMEDIATE_TARGETS): \
     PRIVATE_AAPT_INCLUDES := $(all_library_res_package_exports)
+
+ifdef LOCAL_USE_AAPT2
+$(my_res_package) : $(all_library_res_package_export_deps)
+endif
 endif # LOCAL_NO_STANDARD_LIBRARIES
 
 ifneq ($(full_classes_jar),)
@@ -368,7 +454,6 @@
     $(LOCAL_ADDITIONAL_CERTIFICATES), $(c).x509.pem $(c).pk8)
 
 # Define the rule to build the actual package.
-$(LOCAL_BUILT_MODULE): $(AAPT)
 # PRIVATE_JNI_SHARED_LIBRARIES is a list of <abi>:<path_of_built_lib>.
 $(LOCAL_BUILT_MODULE): PRIVATE_JNI_SHARED_LIBRARIES := $(jni_shared_libraries_with_abis)
 # PRIVATE_JNI_SHARED_LIBRARIES_ABI is a list of ABI names.
@@ -378,20 +463,30 @@
     LOCAL_AAPT_INCLUDE_ALL_RESOURCES := true
 endif
 ifeq ($(LOCAL_AAPT_INCLUDE_ALL_RESOURCES),true)
-    $(LOCAL_BUILT_MODULE): PRIVATE_PRODUCT_AAPT_CONFIG :=
-    $(LOCAL_BUILT_MODULE): PRIVATE_PRODUCT_AAPT_PREF_CONFIG :=
+    $(my_res_package) $(LOCAL_BUILT_MODULE): PRIVATE_PRODUCT_AAPT_CONFIG :=
+    $(my_res_package) $(LOCAL_BUILT_MODULE): PRIVATE_PRODUCT_AAPT_PREF_CONFIG :=
 else
-    $(LOCAL_BUILT_MODULE): PRIVATE_PRODUCT_AAPT_CONFIG := $(PRODUCT_AAPT_CONFIG)
+    $(my_res_package) $(LOCAL_BUILT_MODULE): PRIVATE_PRODUCT_AAPT_CONFIG := $(PRODUCT_AAPT_CONFIG)
 ifdef LOCAL_PACKAGE_SPLITS
-    $(LOCAL_BUILT_MODULE): PRIVATE_PRODUCT_AAPT_PREF_CONFIG :=
+    $(my_res_package) $(LOCAL_BUILT_MODULE): PRIVATE_PRODUCT_AAPT_PREF_CONFIG :=
 else
-    $(LOCAL_BUILT_MODULE): PRIVATE_PRODUCT_AAPT_PREF_CONFIG := $(PRODUCT_AAPT_PREF_CONFIG)
+    $(my_res_package) $(LOCAL_BUILT_MODULE): PRIVATE_PRODUCT_AAPT_PREF_CONFIG := $(PRODUCT_AAPT_PREF_CONFIG)
 endif
 endif
-$(LOCAL_BUILT_MODULE): $(all_res_assets) $(jni_shared_libraries) $(full_android_manifest)
+$(LOCAL_BUILT_MODULE) : $(jni_shared_libraries)
+ifdef LOCAL_USE_AAPT2
+$(LOCAL_BUILT_MODULE): PRIVATE_RES_PACKAGE := $(my_res_package)
+$(LOCAL_BUILT_MODULE) : $(my_res_package) $(AAPT2) | $(ACP)
+else
+$(LOCAL_BUILT_MODULE) : $(all_res_assets) $(full_android_manifest) $(AAPT)
+endif
 	@echo "target Package: $(PRIVATE_MODULE) ($@)"
+ifdef LOCAL_USE_AAPT2
+	$(call copy-file-to-new-target)
+else  # ! LOCAL_USE_AAPT2
 	$(create-empty-package)
 	$(add-assets-to-package)
+endif  # LOCAL_USE_AAPT2
 ifneq ($(jni_shared_libraries),)
 	$(add-jni-shared-libs-to-package)
 endif
@@ -471,6 +566,18 @@
 
 # Make sure to install the splits when you run "make <module_name>".
 $(my_register_name): $(installed_apk_splits)
+
+ifdef LOCAL_COMPATIBILITY_SUITE
+cts_testcase_file := $(foreach s,$(my_split_suffixes),$(COMPATIBILITY_TESTCASES_OUT_$(LOCAL_COMPATIBILITY_SUITE))/$(LOCAL_MODULE)_$(s).apk)
+$(cts_testcase_file) : $(COMPATIBILITY_TESTCASES_OUT_$(LOCAL_COMPATIBILITY_SUITE))/$(LOCAL_MODULE)_%.apk : $(built_module_path)/package_%.apk | $(ACP)
+	$(copy-file-to-new-target)
+
+COMPATIBILITY.$(LOCAL_COMPATIBILITY_SUITE).FILES := \
+  $(COMPATIBILITY.$(LOCAL_COMPATIBILITY_SUITE).FILES) \
+  $(cts_testcase_file)
+
+$(my_register_name) : $(cts_testcase_file)
+endif # LOCAL_COMPATIBILITY_SUITE
 endif # LOCAL_PACKAGE_SPLITS
 
 # Save information about this package
diff --git a/core/pathmap.mk b/core/pathmap.mk
index 495f1a5..a10e671 100644
--- a/core/pathmap.mk
+++ b/core/pathmap.mk
@@ -154,8 +154,8 @@
 #
 FRAMEWORKS_DATA_BINDING_SUBDIRS := \
         baseLibrary/src/main \
-        library/src/main \
-        library/src/doc
+        extensions/library/src/main \
+        extensions/library/src/doc
 
 #
 # A version of FRAMEWORKS_DATA_BINDING_SUBDIRS that is expanded to full paths from
diff --git a/core/pdk_config.mk b/core/pdk_config.mk
index bd72a06..c0aaacd 100644
--- a/core/pdk_config.mk
+++ b/core/pdk_config.mk
@@ -36,7 +36,9 @@
 	$(PDK_PLATFORM_JAVA_ZIP_JAVA_HOST_LIB_DIR)
 
 PDK_PLATFORM_JAVA_ZIP_CONTENTS += $(foreach lib_dir,$(PDK_PLATFORM_JAVA_ZIP_JAVA_LIB_DIR),\
-    $(lib_dir)/classes.jack $(lib_dir)/classes.jar $(lib_dir)/javalib.jar)
+    $(lib_dir)/classes.jack $(lib_dir)/classes.jar $(lib_dir)/classes.jar.toc \
+    $(lib_dir)/javalib.jar  $(lib_dir)/classes*.dex \
+    $(lib_dir)/classes.dex.toc )
 
 # check and override java support level
 ifneq ($(TARGET_BUILD_PDK)$(PDK_FUSION_PLATFORM_ZIP),)
@@ -102,10 +104,8 @@
 endif
 
 define JAVA_dependency_template
-$(PDK_FUSION_OUT_DIR)/$(strip $(1)): $(_pdk_fusion_intermediates)/$(strip $(1)) \
-  $(PDK_FUSION_OUT_DIR)/$(strip $(2)) $(_pdk_fusion_stamp)
-	@mkdir -p $$(dir $$@)
-	$(hide) cp -fpPR $$< $$@
+$(call add-dependency,$(PDK_FUSION_OUT_DIR)/$(strip $(1)),\
+  $(foreach d,$(filter $(2),$(_pdk_fusion_java_file_list)),$(PDK_FUSION_OUT_DIR)/$(d)))
 endef
 
 # needs explicit dependency as package-export.apk is not explicitly pulled
@@ -118,6 +118,14 @@
 $(eval $(call JAVA_dependency_template,$(lib_dir)/javalib.jar,\
 $(lib_dir)/classes.jar)))
 
+# pull .jack and .dex files
+$(foreach lib_dir,$(PDK_PLATFORM_JAVA_ZIP_JAVA_TARGET_LIB_DIR),\
+  $(eval $(call JAVA_dependency_template,$(lib_dir)/classes.jar.toc,\
+    $(lib_dir)/classes.jar $(lib_dir)/classes.jack)))
+$(foreach lib_dir,$(PDK_PLATFORM_JAVA_ZIP_JAVA_TARGET_LIB_DIR),\
+  $(eval $(call JAVA_dependency_template,$(lib_dir)/classes.dex.toc,\
+    $(lib_dir)/classes.jar $(lib_dir)/classes.jack $(lib_dir)/classes%.dex)))
+
 # implicit rules for all other target files
 $(TARGET_COMMON_OUT_ROOT)/% : $(_pdk_fusion_intermediates)/target/common/% $(_pdk_fusion_stamp)
 	@mkdir -p $(dir $@)
diff --git a/core/prebuilt_internal.mk b/core/prebuilt_internal.mk
index a1a19e5..1b33834 100644
--- a/core/prebuilt_internal.mk
+++ b/core/prebuilt_internal.mk
@@ -221,7 +221,7 @@
 #######################################
 ifneq ($(LOCAL_REPLACE_PREBUILT_APK_INSTALLED),)
 # There is a replacement for the prebuilt .apk we can install without any processing.
-$(built_module) : $(LOCAL_REPLACE_PREBUILT_APK_INSTALLED) | $(ACP)
+$(built_module) : $(LOCAL_REPLACE_PREBUILT_APK_INSTALLED)
 	$(transform-prebuilt-to-target)
 
 else  # ! LOCAL_REPLACE_PREBUILT_APK_INSTALLED
@@ -304,7 +304,8 @@
 
 endif # LOCAL_PACKAGE_SPLITS
 
-else ifeq ($(prebuilt_module_is_dex_javalib),true)  # LOCAL_MODULE_CLASS != APPS
+else # LOCAL_MODULE_CLASS != APPS
+ifeq ($(prebuilt_module_is_dex_javalib),true)
 # This is a target shared library, i.e. a jar with classes.dex.
 #######################################
 # defines built_odex along with rule to install odex
@@ -314,7 +315,7 @@
 ifneq ($(dexpreopt_boot_jar_module),) # boot jar
 # boot jar's rules are defined in dex_preopt.mk
 dexpreopted_boot_jar := $(DEXPREOPT_BOOT_JAR_DIR_FULL_PATH)/$(dexpreopt_boot_jar_module)_nodex.jar
-$(built_module) : $(dexpreopted_boot_jar) | $(ACP)
+$(built_module) : $(dexpreopted_boot_jar)
 	$(call copy-file-to-target)
 
 # For libart boot jars, we don't have .odex files.
@@ -325,14 +326,14 @@
 	@echo "Dexpreopt Jar: $(PRIVATE_MODULE) ($@)"
 	$(call dexpreopt-one-file,$<,$@)
 
-$(built_module) : $(my_prebuilt_src_file) | $(ACP)
+$(built_module) : $(my_prebuilt_src_file)
 	$(call copy-file-to-target)
 ifneq (nostripping,$(LOCAL_DEX_PREOPT))
 	$(call dexpreopt-remove-classes.dex,$@)
 endif
 endif # boot jar
 else # ! LOCAL_DEX_PREOPT
-$(built_module) : $(my_prebuilt_src_file) | $(ACP)
+$(built_module) : $(my_prebuilt_src_file)
 	$(call copy-file-to-target)
 endif # LOCAL_DEX_PREOPT
 
@@ -347,6 +348,7 @@
 	$(hide) chmod +x $@
 endif
 endif # ! prebuilt_module_is_dex_javalib
+endif # LOCAL_MODULE_CLASS != APPS
 
 ifeq ($(LOCAL_MODULE_CLASS),JAVA_LIBRARIES)
 my_src_jar := $(my_prebuilt_src_file)
@@ -360,16 +362,17 @@
 
 ifeq ($(prebuilt_module_is_dex_javalib),true)
 # For prebuilt shared Java library we don't have classes.jar.
-$(common_javalib_jar) : $(my_src_jar) | $(ACP)
+$(common_javalib_jar) : $(my_src_jar)
 	$(transform-prebuilt-to-target)
 
 else  # ! prebuilt_module_is_dex_javalib
 
-ifneq ($(filter %.aar, $(my_prebuilt_src_file)),)
+my_src_aar := $(filter %.aar, $(my_prebuilt_src_file))
+ifneq ($(my_src_aar),)
 # This is .aar file, archive of classes.jar and Android resources.
 my_src_jar := $(intermediates.COMMON)/aar/classes.jar
 
-$(my_src_jar) : $(my_prebuilt_src_file)
+$(my_src_jar) : $(my_src_aar)
 	$(hide) rm -rf $(dir $@) && mkdir -p $(dir $@)
 	$(hide) unzip -qo -d $(dir $@) $<
 	# Make sure the extracted classes.jar has a new timestamp.
@@ -385,6 +388,36 @@
 
 $(call define-jar-to-toc-rule, $(common_classes_jar))
 
+ifdef LOCAL_USE_AAPT2
+ifneq ($(my_src_aar),)
+my_res_package := $(intermediates.COMMON)/package-res.apk
+
+# We needed only very few PRIVATE variables and aapt2.mk input variables. Reset the unnecessary ones.
+$(my_res_package): PRIVATE_AAPT2_CFLAGS :=
+$(my_res_package): PRIVATE_ANDROID_MANIFEST := $(intermediates.COMMON)/aar/AndroidManifest.xml
+$(my_res_package): PRIVATE_AAPT_INCLUDES :=
+$(my_res_package): PRIVATE_SOURCE_INTERMEDIATES_DIR :=
+$(my_res_package): PRIVATE_PROGUARD_OPTIONS_FILE :=
+$(my_res_package): PRIVATE_DEFAULT_APP_TARGET_SDK :=
+$(my_res_package): PRIVATE_DEFAULT_APP_TARGET_SDK :=
+$(my_res_package): PRIVATE_PRODUCT_AAPT_CONFIG :=
+$(my_res_package): PRIVATE_PRODUCT_AAPT_PREF_CONFIG :=
+$(my_res_package): PRIVATE_TARGET_AAPT_CHARACTERISTICS :=
+
+full_android_manifest :=
+my_res_resources :=
+my_overlay_resources :=
+my_compiled_res_base_dir :=
+R_file_stamp :=
+proguard_options_file :=
+my_generated_res_dirs := $(intermediates.COMMON)/aar/res
+my_generated_res_dirs_deps := $(my_src_jar)
+include $(BUILD_SYSTEM)/aapt2.mk
+
+# Make sure my_res_package is created when you run mm/mmm.
+$(built_module) : $(my_res_package)
+endif  # $(my_src_aar)
+endif  # LOCAL_USE_AAPT2
 # make sure the classes.jar and javalib.jar are built before $(LOCAL_BUILT_MODULE)
 $(built_module) : $(common_javalib_jar)
 
diff --git a/core/product_config.mk b/core/product_config.mk
index 6aefa8d..c0a1a9d 100644
--- a/core/product_config.mk
+++ b/core/product_config.mk
@@ -149,7 +149,7 @@
 unbundled_goals := $(strip $(filter APP-%,$(MAKECMDGOALS)))
 ifdef unbundled_goals
   ifneq ($(words $(unbundled_goals)),1)
-    $(error Only one APP-* goal may be specified; saw "$(unbundled_goals)"))
+    $(error Only one APP-* goal may be specified; saw "$(unbundled_goals)")
   endif
   TARGET_BUILD_APPS := $(strip $(subst -, ,$(patsubst APP-%,%,$(unbundled_goals))))
   ifneq ($(filter $(DEFAULT_GOAL),$(MAKECMDGOALS)),)
@@ -299,9 +299,11 @@
 
 # product-scoped aapt flags
 PRODUCT_AAPT_FLAGS :=
+PRODUCT_AAPT2_CFLAGS :=
 ifneq ($(filter en_XA ar_XB,$(PRODUCT_LOCALES)),)
-# Force generating resources for pseudo-locales.
-PRODUCT_AAPT_FLAGS += --pseudo-localize
+  # Force generating resources for pseudo-locales.
+  PRODUCT_AAPT2_CFLAGS += --pseudo-localize
+  PRODUCT_AAPT_FLAGS += --pseudo-localize
 endif
 
 PRODUCT_BRAND := $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_BRAND))
diff --git a/core/proguard.flags b/core/proguard.flags
index 0641627..6ed1f9b 100644
--- a/core/proguard.flags
+++ b/core/proguard.flags
@@ -10,9 +10,9 @@
 #-flattenpackagehierarchy
 
 # Keep classes and methods that have the guava @VisibleForTesting annotation
--keep @com.google.common.annotations.VisibleForTesting class *
+-keep @**.VisibleForTesting class *
 -keepclassmembers class * {
-@com.google.common.annotations.VisibleForTesting *;
+@**.VisibleForTesting *;
 }
 
 -include proguard_basic_keeps.flags
diff --git a/core/static_java_library.mk b/core/static_java_library.mk
index d3324f8..9705a52 100644
--- a/core/static_java_library.mk
+++ b/core/static_java_library.mk
@@ -27,6 +27,10 @@
 include $(BUILD_SYSTEM)/configure_local_jack.mk
 #################################
 
+intermediates.COMMON := $(call local-intermediates-dir,COMMON)
+
+my_res_package :=
+
 # Hack to build static Java library with Android resource
 # See bug 5714516
 all_resources :=
@@ -34,6 +38,14 @@
 # A static Java library needs to explicily set LOCAL_RESOURCE_DIR.
 ifdef LOCAL_RESOURCE_DIR
 need_compile_res := true
+endif
+ifdef LOCAL_USE_AAPT2
+ifneq ($(LOCAL_STATIC_ANDROID_LIBRARIES),)
+need_compile_res := true
+endif
+endif
+
+ifeq ($(need_compile_res),true)
 all_resources := $(strip \
     $(foreach dir, $(LOCAL_RESOURCE_DIR), \
       $(addprefix $(dir)/, \
@@ -56,7 +68,6 @@
 
 proguard_options_file :=
 
-intermediates.COMMON := $(call local-intermediates-dir,COMMON)
 ifneq ($(LOCAL_PROGUARD_ENABLED),custom)
   proguard_options_file := $(intermediates.COMMON)/proguard_options
 endif
@@ -68,6 +79,18 @@
 endif
 LOCAL_JACK_PROGUARD_FLAGS := $(addprefix -include ,$(proguard_options_file)) $(LOCAL_JACK_PROGUARD_FLAGS)
 
+R_file_stamp := $(intermediates.COMMON)/src/R.stamp
+LOCAL_INTERMEDIATE_TARGETS += $(R_file_stamp)
+
+ifdef LOCAL_USE_AAPT2
+# For library we treat all the resource equal with no overlay.
+my_res_resources := $(all_resources)
+my_overlay_resources :=
+# For libraries put everything in the COMMON intermediate directory.
+my_res_package := $(intermediates.COMMON)/package-res.apk
+
+LOCAL_INTERMEDIATE_TARGETS += $(my_res_package)
+endif  # LOCAL_USE_AAPT2
 endif  # LOCAL_RESOURCE_DIR
 
 all_res_assets := $(all_resources)
@@ -75,8 +98,6 @@
 include $(BUILD_SYSTEM)/java_library.mk
 
 ifeq (true,$(need_compile_res))
-R_file_stamp := $(LOCAL_INTERMEDIATE_SOURCE_DIR)/R.stamp
-
 include $(BUILD_SYSTEM)/android_manifest.mk
 
 LOCAL_SDK_RES_VERSION:=$(strip $(LOCAL_SDK_RES_VERSION))
@@ -88,7 +109,7 @@
 framework_res_package_export_deps :=
 # Please refer to package.mk
 ifneq ($(LOCAL_NO_STANDARD_LIBRARIES),true)
-ifneq ($(filter-out current system_current,$(LOCAL_SDK_RES_VERSION))$(if $(TARGET_BUILD_APPS),$(filter current system_current,$(LOCAL_SDK_RES_VERSION))),)
+ifneq ($(filter-out current system_current test_current,$(LOCAL_SDK_RES_VERSION))$(if $(TARGET_BUILD_APPS),$(filter current system_current test_current,$(LOCAL_SDK_RES_VERSION))),)
 framework_res_package_export := \
     $(HISTORICAL_SDK_VERSIONS_ROOT)/$(LOCAL_SDK_RES_VERSION)/android.jar
 framework_res_package_export_deps := $(framework_res_package_export)
@@ -100,29 +121,47 @@
 endif
 endif
 
-$(R_file_stamp): PRIVATE_MODULE := $(LOCAL_MODULE)
 # add --non-constant-id to prevent inlining constants.
 # AAR needs text symbol file R.txt.
-$(R_file_stamp): PRIVATE_AAPT_FLAGS := $(LOCAL_AAPT_FLAGS) --non-constant-id --output-text-symbols $(LOCAL_INTERMEDIATE_SOURCE_DIR)
-$(R_file_stamp): PRIVATE_SOURCE_INTERMEDIATES_DIR := $(LOCAL_INTERMEDIATE_SOURCE_DIR)
-$(R_file_stamp): PRIVATE_ANDROID_MANIFEST := $(full_android_manifest)
-$(R_file_stamp): PRIVATE_RESOURCE_PUBLICS_OUTPUT := $(intermediates.COMMON)/public_resources.xml
-$(R_file_stamp): PRIVATE_RESOURCE_DIR := $(LOCAL_RESOURCE_DIR)
-$(R_file_stamp): PRIVATE_AAPT_INCLUDES := $(framework_res_package_export)
-ifneq (,$(filter-out current system_current, $(LOCAL_SDK_VERSION)))
-$(R_file_stamp): PRIVATE_DEFAULT_APP_TARGET_SDK := $(LOCAL_SDK_VERSION)
+ifdef LOCAL_USE_AAPT2
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_AAPT_FLAGS := $(LOCAL_AAPT_FLAGS) --static-lib --no-static-lib-packages
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_PRODUCT_AAPT_CONFIG :=
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_PRODUCT_AAPT_PREF_CONFIG :=
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_TARGET_AAPT_CHARACTERISTICS :=
 else
-$(R_file_stamp): PRIVATE_DEFAULT_APP_TARGET_SDK := $(DEFAULT_APP_TARGET_SDK)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_AAPT_FLAGS := $(LOCAL_AAPT_FLAGS) --non-constant-id --output-text-symbols $(LOCAL_INTERMEDIATE_SOURCE_DIR)
 endif
-$(R_file_stamp): PRIVATE_ASSET_DIR :=
-$(R_file_stamp): PRIVATE_PROGUARD_OPTIONS_FILE := $(proguard_options_file)
-$(R_file_stamp): PRIVATE_MANIFEST_PACKAGE_NAME :=
-$(R_file_stamp): PRIVATE_MANIFEST_INSTRUMENTATION_FOR :=
 
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_SOURCE_INTERMEDIATES_DIR := $(LOCAL_INTERMEDIATE_SOURCE_DIR)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ANDROID_MANIFEST := $(full_android_manifest)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_RESOURCE_PUBLICS_OUTPUT := $(intermediates.COMMON)/public_resources.xml
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_RESOURCE_DIR := $(LOCAL_RESOURCE_DIR)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_AAPT_INCLUDES := $(framework_res_package_export)
+
+ifneq (,$(filter-out current system_current test_current, $(LOCAL_SDK_VERSION)))
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_DEFAULT_APP_TARGET_SDK := $(LOCAL_SDK_VERSION)
+else
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_DEFAULT_APP_TARGET_SDK := $(DEFAULT_APP_TARGET_SDK)
+endif
+
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ASSET_DIR :=
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_PROGUARD_OPTIONS_FILE := $(proguard_options_file)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_MANIFEST_PACKAGE_NAME :=
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_MANIFEST_INSTRUMENTATION_FOR :=
+
+ifdef LOCAL_USE_AAPT2
+# One more level with name res so we can zip up the flat resources that can be linked by apps.
+my_compiled_res_base_dir := $(intermediates.COMMON)/flat-res/res
+my_generated_res_dirs := $(rs_generated_res_dir)
+my_generated_res_dirs_deps := $(RenderScript_file_stamp)
+include $(BUILD_SYSTEM)/aapt2.mk
+$(my_res_package) : $(framework_res_package_export_deps)
+else
 $(R_file_stamp) : $(all_resources) $(full_android_manifest) $(AAPT) $(framework_res_package_export_deps)
 	@echo "target R.java/Manifest.java: $(PRIVATE_MODULE) ($@)"
 	$(create-resource-java-files)
 	$(hide) find $(PRIVATE_SOURCE_INTERMEDIATES_DIR) -name R.java | xargs cat > $@
+endif  # LOCAL_USE_AAPT2
 
 $(LOCAL_BUILT_MODULE) \
 $(full_classes_compiled_jar) \
@@ -149,7 +188,6 @@
 
 # Register the aar file.
 ALL_MODULES.$(LOCAL_MODULE).AAR := $(built_aar)
-
 endif  # need_compile_res
 
 # Reset internal variables.
diff --git a/core/tasks/apicheck.mk b/core/tasks/apicheck.mk
index 683a075..3975d20 100644
--- a/core/tasks/apicheck.mk
+++ b/core/tasks/apicheck.mk
@@ -129,4 +129,37 @@
 	@echo Copying system-removed.txt
 	$(hide) $(ACP) $(INTERNAL_PLATFORM_SYSTEM_REMOVED_API_FILE) frameworks/base/api/system-removed.txt
 
+#####################Check Test API#####################
+.PHONY: check-test-api
+checkapi : check-test-api
+
+# Check that the Test API we're building hasn't changed from the not-yet-released
+# SDK version. Note that we don't check that we haven't broken the previous
+# SDK's API because the test API is meant only for CTS which is always
+# associated with the current release.
+$(eval $(call check-api, \
+    checktestapi-current, \
+    frameworks/base/api/test-current.txt, \
+    $(INTERNAL_PLATFORM_TEST_API_FILE), \
+    frameworks/base/api/test-removed.txt, \
+    $(INTERNAL_PLATFORM_TEST_REMOVED_API_FILE), \
+    -error 2 -error 3 -error 4 -error 5 -error 6 \
+    -error 7 -error 8 -error 9 -error 10 -error 11 -error 12 -error 13 -error 14 -error 15 \
+    -error 16 -error 17 -error 18 -error 19 -error 20 -error 21 -error 23 -error 24 \
+    -error 25 -error 26 -error 27, \
+    cat $(BUILD_SYSTEM)/apicheck_msg_current.txt, \
+    check-test-api, \
+    $(call doc-timestamp-for,test-api-stubs) \
+    ))
+
+.PHONY: update-test-api
+update-api : update-test-api
+
+update-test-api: $(INTERNAL_PLATFORM_TEST_API_FILE) | $(ACP)
+	@echo Copying test-current.txt
+	$(hide) $(ACP) $(INTERNAL_PLATFORM_TEST_API_FILE) frameworks/base/api/test-current.txt
+	@echo Copying test-removed.txt
+	$(hide) $(ACP) $(INTERNAL_PLATFORM_TEST_REMOVED_API_FILE) frameworks/base/api/test-removed.txt
+
+
 endif
diff --git a/core/tasks/cts.mk b/core/tasks/cts.mk
index d923c26..fdd9591 100644
--- a/core/tasks/cts.mk
+++ b/core/tasks/cts.mk
@@ -1,4 +1,4 @@
-# Copyright (C) 2008 The Android Open Source Project
+# Copyright (C) 2015 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.
@@ -12,385 +12,16 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-cts_dir := $(HOST_OUT)/cts
-cts_tools_src_dir := cts/tools
+test_suite_name := cts
+test_suite_tradefed := cts-tradefed
+test_suite_dynamic_config := cts/tools/cts-tradefed/DynamicConfig.xml
+test_suite_readme := cts/tools/cts-tradefed/README
 
-cts_name := android-cts
-
-JUNIT_HOST_JAR := $(HOST_OUT_JAVA_LIBRARIES)/junit.jar
-HOSTTESTLIB_JAR := $(HOST_OUT_JAVA_LIBRARIES)/hosttestlib.jar
-TF_JAR := $(HOST_OUT_JAVA_LIBRARIES)/tradefed-prebuilt.jar
-CTS_TF_JAR := $(HOST_OUT_JAVA_LIBRARIES)/cts-tradefed.jar
-CTS_TF_EXEC_PATH ?= $(HOST_OUT_EXECUTABLES)/cts-tradefed
-CTS_TF_README_PATH := $(cts_tools_src_dir)/tradefed-host/README
-
-VMTESTSTF_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,vm-tests-tf,HOST)
-VMTESTSTF_JAR := $(VMTESTSTF_INTERMEDIATES)/android.core.vm-tests-tf.jar
-
-# The list of test packages that core-tests (libcore/Android.mk)
-# is split into.
-CTS_CORE_CASE_LIST := \
-	android.core.tests.libcore.package.dalvik \
-	android.core.tests.libcore.package.com \
-	android.core.tests.libcore.package.conscrypt \
-	android.core.tests.libcore.package.sun \
-	android.core.tests.libcore.package.tests \
-	android.core.tests.libcore.package.org \
-	android.core.tests.libcore.package.libcore \
-	android.core.tests.libcore.package.jsr166 \
-	android.core.tests.libcore.package.harmony_annotation \
-	android.core.tests.libcore.package.harmony_java_io \
-	android.core.tests.libcore.package.harmony_java_lang \
-	android.core.tests.libcore.package.harmony_java_math \
-	android.core.tests.libcore.package.harmony_java_net \
-	android.core.tests.libcore.package.harmony_java_nio \
-	android.core.tests.libcore.package.harmony_java_text \
-	android.core.tests.libcore.package.harmony_java_util \
-	android.core.tests.libcore.package.harmony_javax_security \
-	android.core.tests.libcore.package.okhttp \
-	android.core.tests.runner
-
-# Additional CTS packages for code under libcore
-CTS_CORE_CASE_LIST += \
-	android.core.tests.libcore.package.tzdata
-
-# The list of test packages that apache-harmony-tests (external/apache-harmony/Android.mk)
-# is split into.
-CTS_CORE_CASE_LIST += \
-	android.core.tests.libcore.package.harmony_beans \
-	android.core.tests.libcore.package.harmony_logging \
-	android.core.tests.libcore.package.harmony_prefs \
-	android.core.tests.libcore.package.harmony_sql
-
-
-CTS_TEST_JAR_LIST := \
-	cts-junit \
-	CtsJdwp
-
-# Depend on the full package paths rather than the phony targets to avoid
-# rebuilding the packages every time.
-CTS_CORE_CASES := $(foreach pkg,$(CTS_CORE_CASE_LIST),$(call intermediates-dir-for,APPS,$(pkg))/package.apk)
-CTS_TEST_JAR_FILES := $(foreach c,$(CTS_TEST_JAR_LIST),$(call intermediates-dir-for,JAVA_LIBRARIES,$(c))/javalib.jar)
-
--include cts/CtsTestCaseList.mk
-
-# A module may have mutliple installed files (e.g. split apks)
-CTS_CASE_LIST_APKS :=
-$(foreach m, $(CTS_TEST_CASE_LIST),\
-  $(foreach fp, $(ALL_MODULES.$(m).BUILT_INSTALLED),\
-    $(eval pair := $(subst :,$(space),$(fp)))\
-    $(eval CTS_CASE_LIST_APKS += $(CTS_TESTCASES_OUT)/$(notdir $(word 2,$(pair))))))\
-$(foreach m, $(CTS_CORE_CASE_LIST),\
-  $(foreach fp, $(ALL_MODULES.$(m).BUILT_INSTALLED),\
-    $(eval pair := $(subst :,$(space),$(fp)))\
-    $(eval built := $(word 1,$(pair)))\
-    $(eval installed := $(CTS_TESTCASES_OUT)/$(notdir $(word 2,$(pair))))\
-    $(eval $(call copy-one-file, $(built), $(installed)))\
-    $(eval CTS_CASE_LIST_APKS += $(installed))))
-
-CTS_CASE_LIST_JARS :=
-$(foreach m, $(CTS_TEST_JAR_LIST),\
-  $(eval CTS_CASE_LIST_JARS += $(CTS_TESTCASES_OUT)/$(m).jar))
-
-CTS_SHARED_LIBS :=
-
-DEFAULT_TEST_PLAN := $(cts_dir)/$(cts_name)/resource/plans
-$(cts_dir)/all_cts_files_stamp: $(CTS_CORE_CASES) $(CTS_TEST_JAR_FILES) $(CTS_TEST_CASES) $(CTS_CASE_LIST_APKS) $(CTS_CASE_LIST_JARS) $(JUNIT_HOST_JAR) $(HOSTTESTLIB_JAR) $(CTS_HOST_LIBRARY_JARS) $(TF_JAR) $(VMTESTSTF_JAR) $(CTS_TF_JAR) $(CTS_TF_EXEC_PATH) $(CTS_TF_README_PATH) $(ADDITIONAL_TF_JARS) $(ACP) $(CTS_SHARED_LIBS)
-
-# Make necessary directory for CTS
-	$(hide) mkdir -p $(TMP_DIR)
-	$(hide) mkdir -p $(PRIVATE_DIR)/docs
-	$(hide) mkdir -p $(PRIVATE_DIR)/tools
-	$(hide) mkdir -p $(PRIVATE_DIR)/repository/testcases
-	$(hide) mkdir -p $(PRIVATE_DIR)/repository/plans
-# Copy executable and JARs to CTS directory
-	$(hide) $(ACP) -fp $(VMTESTSTF_JAR) $(CTS_TESTCASES_OUT)
-	$(hide) $(ACP) -fp $(HOSTTESTLIB_JAR) $(CTS_HOST_LIBRARY_JARS) $(TF_JAR) $(CTS_TF_JAR) $(CTS_TF_EXEC_PATH) $(ADDITIONAL_TF_JARS) $(CTS_TF_README_PATH) $(PRIVATE_DIR)/tools
-	$(hide) $(call copy-files-with-structure, $(CTS_SHARED_LIBS),$(HOST_OUT)/,$(PRIVATE_DIR))
-	$(hide) touch $@
-
-# Generate the test descriptions for the core-tests
-# Parameters:
-# $1 : The output file where the description should be written (without the '.xml' extension)
-# $2 : The AndroidManifest.xml corresponding to the test package
-# $3 : The jar file name on PRIVATE_CLASSPATH containing junit tests to search for
-# $4 : The package prefix of classes to include, possible empty
-# $5 : The architecture of the current build
-# $6 : The directory containing vogar expectations files
-# $7 : The Android.mk corresponding to the test package (required for host-side tests only)
-define generate-core-test-description
-@echo "Generate core-test description ("$(notdir $(1))")"
-$(hide) java -Xmx256M \
-	-Xbootclasspath/a:$(PRIVATE_CLASSPATH):$(JUNIT_HOST_JAR) \
-	-classpath $(HOST_OUT_JAVA_LIBRARIES)/descGen.jar:$(HOST_JDK_TOOLS_JAR) \
-	$(PRIVATE_PARAMS) CollectAllTests $(1) $(2) $(3) "$(4)" $(5) $(6) $(7)
-endef
-
-OJ_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,core-oj,,COMMON)
-CORE_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,core-libart,,COMMON)
-CONSCRYPT_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,conscrypt,,COMMON)
-BOUNCYCASTLE_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,bouncycastle,,COMMON)
-APACHEXML_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,apache-xml,,COMMON)
-OKHTTP_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,okhttp-nojarjar,,COMMON)
-OKHTTPTESTS_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,okhttp-tests-nojarjar,,COMMON)
-OKHTTP_REPACKAGED_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,okhttp,,COMMON)
-APACHEHARMONYTESTS_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,apache-harmony-tests,,COMMON)
-SQLITEJDBC_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,sqlite-jdbc,,COMMON)
-JUNIT_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,core-junit,,COMMON)
-CORETESTS_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,core-tests,,COMMON)
-JSR166TESTS_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,jsr166-tests,,COMMON)
-CONSCRYPTTESTS_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,conscrypt-tests,,COMMON)
-TZDATAUPDATETESTS_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,tzdata_update-tests,,COMMON)
-
-GEN_CLASSPATH := \
-    $(OJ_INTERMEDIATES)/classes.jar:$(CORE_INTERMEDIATES)/classes.jar:$(CONSCRYPT_INTERMEDIATES)/classes.jar:$(BOUNCYCASTLE_INTERMEDIATES)/classes.jar:$(APACHEXML_INTERMEDIATES)/classes.jar:$(APACHEHARMONYTESTS_INTERMEDIATES)/classes.jar:$(OKHTTP_INTERMEDIATES)/classes.jar:$(OKHTTPTESTS_INTERMEDIATES)/classes.jar:$(OKHTTP_REPACKAGED_INTERMEDIATES)/classes.jar:$(JUNIT_INTERMEDIATES)/classes.jar:$(SQLITEJDBC_INTERMEDIATES)/javalib.jar:$(CORETESTS_INTERMEDIATES)/javalib.jar:$(JSR166TESTS_INTERMEDIATES)/javalib.jar:$(CONSCRYPTTESTS_INTERMEDIATES)/javalib.jar:$(TZDATAUPDATETESTS_INTERMEDIATES)/javalib.jar
-
-CTS_CORE_XMLS := \
-	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.dalvik.xml \
-	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.com.xml \
-	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.conscrypt.xml \
-	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.sun.xml \
-	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.tests.xml \
-	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.org.xml \
-	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.libcore.xml \
-	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.jsr166.xml \
-	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_annotation.xml \
-	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_io.xml \
-	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_lang.xml \
-	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_math.xml \
-	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_net.xml \
-	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_nio.xml \
-	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_text.xml \
-	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_util.xml \
-	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_javax_security.xml \
-	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_beans.xml \
-	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_logging.xml \
-	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_prefs.xml \
-	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_sql.xml \
-	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.okhttp.xml \
-	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.tzdata.xml \
-
-$(CTS_CORE_XMLS): PRIVATE_CLASSPATH:=$(GEN_CLASSPATH)
-# Why does this depend on javalib.jar instead of classes.jar?  Because
-# even though the tool will operate on the classes.jar files, the
-# build system requires that dependencies use javalib.jar.  If
-# javalib.jar is up-to-date, then classes.jar is as well.  Depending
-# on classes.jar will build the files incorrectly.
-CTS_CORE_XMLS_DEPS := $(CTS_CORE_CASES) $(HOST_OUT_JAVA_LIBRARIES)/descGen.jar $(JUNIT_HOST_JAR) $(CORE_INTERMEDIATES)/javalib.jar $(BOUNCYCASTLE_INTERMEDIATES)/javalib.jar $(APACHEXML_INTERMEDIATES)/javalib.jar $(APACHEHARMONYTESTS_INTERMEDIATES)/javalib.jar $(OKHTTP_INTERMEDIATES)/javalib.jar $(OKHTTPTESTS_INTERMEDIATES)/javalib.jar $(OKHTTP_REPACKAGED_INTERMEDIATES)/javalib.jar $(SQLITEJDBC_INTERMEDIATES)/javalib.jar $(JUNIT_INTERMEDIATES)/javalib.jar $(CORETESTS_INTERMEDIATES)/javalib.jar $(JSR166TESTS_INTERMEDIATES)/javalib.jar $(CONSCRYPTTESTS_INTERMEDIATES)/javalib.jar $(TZDATAUPDATETESTS_INTERMEDIATES)/javalib.jar build/core/tasks/cts.mk | $(ACP)
-
-$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.dalvik.xml: $(CTS_CORE_XMLS_DEPS)
-	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
-	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.dalvik,\
-		cts/tests/core/libcore/dalvik/AndroidManifest.xml,\
-		$(CORETESTS_INTERMEDIATES)/javalib.jar,dalvik,\
-		$(TARGET_ARCH),libcore/expectations)
-
-$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.com.xml: $(CTS_CORE_XMLS_DEPS)
-	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
-	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.com,\
-		cts/tests/core/libcore/com/AndroidManifest.xml,\
-		$(CORETESTS_INTERMEDIATES)/javalib.jar,com,\
-		$(TARGET_ARCH),libcore/expectations)
-
-$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.conscrypt.xml: $(CTS_CORE_XMLS_DEPS)
-	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
-	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.conscrypt,\
-		cts/tests/core/libcore/conscrypt/AndroidManifest.xml,\
-		$(CONSCRYPTTESTS_INTERMEDIATES)/javalib.jar,,\
-		$(TARGET_ARCH),libcore/expectations)
-
-$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.sun.xml: $(CTS_CORE_XMLS_DEPS)
-	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
-	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.sun,\
-		cts/tests/core/libcore/sun/AndroidManifest.xml,\
-		$(CORETESTS_INTERMEDIATES)/javalib.jar,sun,\
-		$(TARGET_ARCH),libcore/expectations)
-
-$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.tests.xml: $(CTS_CORE_XMLS_DEPS)
-	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
-	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.tests,\
-		cts/tests/core/libcore/tests/AndroidManifest.xml,\
-		$(CORETESTS_INTERMEDIATES)/javalib.jar,tests,\
-		$(TARGET_ARCH),libcore/expectations)
-
-$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.org.xml: $(CTS_CORE_XMLS_DEPS)
-	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
-	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.org,\
-		cts/tests/core/libcore/org/AndroidManifest.xml,\
-		$(CORETESTS_INTERMEDIATES)/javalib.jar,\
-		org.w3c.domts:\
-		org.apache.harmony.security.tests:\
-		org.apache.harmony.nio.tests:\
-		org.apache.harmony.crypto.tests:\
-		org.apache.harmony.regex.tests:\
-		org.apache.harmony.luni.tests:\
-		org.apache.harmony.tests.internal.net.www.protocol:\
-		org.apache.harmony.tests.javax.net:\
-		org.json,\
-		$(TARGET_ARCH),libcore/expectations)
-
-$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.libcore.xml: $(CTS_CORE_XMLS_DEPS)
-	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
-	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.libcore,\
-		cts/tests/core/libcore/libcore/AndroidManifest.xml,\
-		$(CORETESTS_INTERMEDIATES)/javalib.jar,libcore,\
-		$(TARGET_ARCH),libcore/expectations)
-
-$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.jsr166.xml: $(CTS_CORE_XMLS_DEPS)
-	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
-	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.jsr166,\
-		cts/tests/core/libcore/jsr166/AndroidManifest.xml,\
-		$(JSR166TESTS_INTERMEDIATES)/javalib.jar,jsr166,\
-		$(TARGET_ARCH),libcore/expectations)
-
-$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_annotation.xml: $(CTS_CORE_XMLS_DEPS)
-	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
-	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_annotation,\
-		cts/tests/core/libcore/harmony_annotation/AndroidManifest.xml,\
-		$(CORETESTS_INTERMEDIATES)/javalib.jar,org.apache.harmony.annotation.tests,\
-		$(TARGET_ARCH),libcore/expectations)
-
-$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_io.xml: $(CTS_CORE_XMLS_DEPS)
-	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
-	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_io,\
-		cts/tests/core/libcore/harmony_java_io/AndroidManifest.xml,\
-		$(CORETESTS_INTERMEDIATES)/javalib.jar,org.apache.harmony.tests.java.io,\
-		$(TARGET_ARCH),libcore/expectations)
-
-$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_lang.xml: $(CTS_CORE_XMLS_DEPS)
-	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
-	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_lang,\
-		cts/tests/core/libcore/harmony_java_lang/AndroidManifest.xml,\
-		$(CORETESTS_INTERMEDIATES)/javalib.jar,org.apache.harmony.tests.java.lang,\
-		$(TARGET_ARCH),libcore/expectations)
-
-$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_math.xml: $(CTS_CORE_XMLS_DEPS)
-	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
-	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_math,\
-		cts/tests/core/libcore/harmony_java_math/AndroidManifest.xml,\
-		$(CORETESTS_INTERMEDIATES)/javalib.jar,org.apache.harmony.tests.java.math,\
-		$(TARGET_ARCH),libcore/expectations)
-
-$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_net.xml: $(CTS_CORE_XMLS_DEPS)
-	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
-	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_net,\
-		cts/tests/core/libcore/harmony_java_net/AndroidManifest.xml,\
-		$(CORETESTS_INTERMEDIATES)/javalib.jar,org.apache.harmony.tests.java.net,\
-		$(TARGET_ARCH),libcore/expectations)
-
-$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_nio.xml: $(CTS_CORE_XMLS_DEPS)
-	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
-	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_nio,\
-		cts/tests/core/libcore/harmony_java_nio/AndroidManifest.xml,\
-		$(CORETESTS_INTERMEDIATES)/javalib.jar,org.apache.harmony.tests.java.nio,\
-		$(TARGET_ARCH),libcore/expectations)
-
-$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_text.xml: $(CTS_CORE_XMLS_DEPS)
-	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
-	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_text,\
-		cts/tests/core/libcore/harmony_java_text/AndroidManifest.xml,\
-		$(CORETESTS_INTERMEDIATES)/javalib.jar,org.apache.harmony.tests.java.text,\
-		$(TARGET_ARCH),libcore/expectations)
-
-$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_util.xml: $(CTS_CORE_XMLS_DEPS)
-	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
-	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_util,\
-		cts/tests/core/libcore/harmony_java_util/AndroidManifest.xml,\
-		$(CORETESTS_INTERMEDIATES)/javalib.jar,org.apache.harmony.tests.java.util,\
-		$(TARGET_ARCH),libcore/expectations)
-
-$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_javax_security.xml: $(CTS_CORE_XMLS_DEPS)
-	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
-	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_javax_security,\
-		cts/tests/core/libcore/harmony_javax_security/AndroidManifest.xml,\
-		$(CORETESTS_INTERMEDIATES)/javalib.jar,org.apache.harmony.tests.javax.security,\
-		$(TARGET_ARCH),libcore/expectations)
-
-$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_beans.xml: $(CTS_CORE_XMLS_DEPS)
-	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
-	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_beans,\
-		cts/tests/core/libcore/harmony_beans/AndroidManifest.xml,\
-		$(APACHEHARMONYTESTS_INTERMEDIATES)/javalib.jar,com.android.org.apache.harmony.beans,\
-		$(TARGET_ARCH),libcore/expectations external/apache-harmony/Android.mk)
-
-$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_logging.xml: $(CTS_CORE_XMLS_DEPS)
-	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
-	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_logging,\
-		cts/tests/core/libcore/harmony_logging/AndroidManifest.xml,\
-		$(APACHEHARMONYTESTS_INTERMEDIATES)/javalib.jar,com.android.org.apache.harmony.logging,\
-		$(TARGET_ARCH),libcore/expectations external/apache-harmony/Android.mk)
-
-$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_prefs.xml: $(CTS_CORE_XMLS_DEPS)
-	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
-	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_prefs,\
-		cts/tests/core/libcore/harmony_prefs/AndroidManifest.xml,\
-		$(APACHEHARMONYTESTS_INTERMEDIATES)/javalib.jar,com.android.org.apache.harmony.prefs,\
-		$(TARGET_ARCH),libcore/expectations external/apache-harmony/Android.mk)
-
-$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_sql.xml: $(CTS_CORE_XMLS_DEPS)
-	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
-	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_sql,\
-		cts/tests/core/libcore/harmony_sql/AndroidManifest.xml,\
-		$(APACHEHARMONYTESTS_INTERMEDIATES)/javalib.jar,com.android.org.apache.harmony.sql,\
-		$(TARGET_ARCH),libcore/expectations external/apache-harmony/Android.mk)
-
-$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.okhttp.xml: $(CTS_CORE_XMLS_DEPS)
-	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
-	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.okhttp,\
-		cts/tests/core/libcore/okhttp/AndroidManifest.xml,\
-		$(OKHTTPTESTS_INTERMEDIATES)/javalib.jar,,\
-		$(TARGET_ARCH),libcore/expectations)
-
-$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.tzdata.xml: $(CTS_CORE_XMLS_DEPS)
-	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
-	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.tzdata,\
-		cts/tests/core/libcore/tzdata/AndroidManifest.xml,\
-		$(TZDATAUPDATETESTS_INTERMEDIATES)/javalib.jar,,\
-		$(TARGET_ARCH),libcore/expectations)
-
-# ----- Generate the test descriptions for the vm-tests-tf -----
-#
-CORE_VM_TEST_TF_DESC := $(CTS_TESTCASES_OUT)/android.core.vm-tests-tf.xml
-
-# core tests only needed to get hold of junit-framework-classes
-OJ_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,core-oj,,COMMON)
-CORE_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,core-libart,,COMMON)
-JUNIT_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,core-junit,,COMMON)
-
-GEN_CLASSPATH := $(OJ_INTERMEDIATES)/classes.jar:$(CORE_INTERMEDIATES)/classes.jar:$(JUNIT_INTERMEDIATES)/classes.jar:$(VMTESTSTF_JAR):$(TF_JAR)
-
-$(CORE_VM_TEST_TF_DESC): PRIVATE_CLASSPATH:=$(GEN_CLASSPATH)
-# Please see big comment above on why this line depends on javalib.jar instead of classes.jar
-$(CORE_VM_TEST_TF_DESC): $(HOST_OUT_JAVA_LIBRARIES)/descGen.jar $(JUNIT_HOST_JAR) $(CORE_INTERMEDIATES)/javalib.jar $(JUNIT_INTERMEDIATES)/javalib.jar $(VMTESTSTF_JAR) | $(ACP)
-	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
-	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.vm-tests-tf,\
-		cts/tests/vm-tests-tf/AndroidManifest.xml,\
-		$(VMTESTSTF_JAR),"",\
-		$(TARGET_ARCH),\
-		libcore/expectations,\
-		cts/tools/vm-tests-tf/Android.mk)
-
-# Generate the default test plan for User.
-# Usage: buildCts.py <testRoot> <ctsOutputDir> <tempDir> <androidRootDir> <docletPath>
-
-$(DEFAULT_TEST_PLAN): $(cts_dir)/all_cts_files_stamp $(cts_tools_src_dir)/utils/buildCts.py $(HOST_OUT_JAVA_LIBRARIES)/descGen.jar $(CTS_CORE_XMLS) $(CTS_TEST_XMLS) $(CORE_VM_TEST_TF_DESC)
-	$(hide) $(cts_tools_src_dir)/utils/buildCts.py cts/tests/tests/ $(PRIVATE_DIR) $(TMP_DIR) \
-		$(TOP) $(HOST_OUT_JAVA_LIBRARIES)/descGen.jar
-	$(hide) mkdir -p $(dir $@) && touch $@
-
-# Package CTS and clean up.
-#
-# TODO:
-#   Pack cts.bat into the same zip file as well. See http://buganizer/issue?id=1656821 for more details
-INTERNAL_CTS_TARGET := $(cts_dir)/$(cts_name).zip
-$(INTERNAL_CTS_TARGET): PRIVATE_NAME := $(cts_name)
-$(INTERNAL_CTS_TARGET): PRIVATE_CTS_DIR := $(cts_dir)
-$(INTERNAL_CTS_TARGET): PRIVATE_DIR := $(cts_dir)/$(cts_name)
-$(INTERNAL_CTS_TARGET): TMP_DIR := $(cts_dir)/temp
-$(INTERNAL_CTS_TARGET): $(cts_dir)/all_cts_files_stamp $(DEFAULT_TEST_PLAN)
-	$(hide) echo "Package CTS: $@"
-	$(hide) cd $(dir $@) && zip -rqX $(notdir $@) $(PRIVATE_NAME)
+include $(BUILD_SYSTEM)/tasks/tools/compatibility.mk
 
 .PHONY: cts
-cts: $(INTERNAL_CTS_TARGET) adb
-$(call dist-for-goals,cts,$(INTERNAL_CTS_TARGET))
+cts: $(compatibility_zip)
+$(call dist-for-goals, cts, $(compatibility_zip))
+
+.PHONY: cts_v2
+cts_v2: cts
diff --git a/core/tasks/old-cts.mk b/core/tasks/old-cts.mk
new file mode 100644
index 0000000..904f5b2
--- /dev/null
+++ b/core/tasks/old-cts.mk
@@ -0,0 +1,396 @@
+# Copyright (C) 2008 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.
+
+cts_dir := $(HOST_OUT)/old-cts
+cts_tools_src_dir := cts/tools
+
+cts_name := old-android-cts
+
+JUNIT_HOST_JAR := $(HOST_OUT_JAVA_LIBRARIES)/junit.jar
+HOSTTESTLIB_JAR := $(HOST_OUT_JAVA_LIBRARIES)/hosttestlib.jar
+TF_JAR := $(HOST_OUT_JAVA_LIBRARIES)/tradefed-prebuilt.jar
+CTS_TF_JAR := $(HOST_OUT_JAVA_LIBRARIES)/old-cts-tradefed.jar
+CTS_TF_EXEC_PATH ?= $(HOST_OUT_EXECUTABLES)/old-cts-tradefed
+CTS_TF_README_PATH := $(cts_tools_src_dir)/tradefed-host/README
+
+VMTESTSTF_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,vm-tests-tf,HOST)
+VMTESTSTF_JAR := $(VMTESTSTF_INTERMEDIATES)/android.core.vm-tests-tf.jar
+
+# The list of test packages that core-tests (libcore/Android.mk)
+# is split into.
+CTS_CORE_CASE_LIST := \
+	android.core.tests.libcore.package.dalvik \
+	android.core.tests.libcore.package.com \
+	android.core.tests.libcore.package.conscrypt \
+	android.core.tests.libcore.package.sun \
+	android.core.tests.libcore.package.tests \
+	android.core.tests.libcore.package.org \
+	android.core.tests.libcore.package.libcore \
+	android.core.tests.libcore.package.jsr166 \
+	android.core.tests.libcore.package.harmony_annotation \
+	android.core.tests.libcore.package.harmony_java_io \
+	android.core.tests.libcore.package.harmony_java_lang \
+	android.core.tests.libcore.package.harmony_java_math \
+	android.core.tests.libcore.package.harmony_java_net \
+	android.core.tests.libcore.package.harmony_java_nio \
+	android.core.tests.libcore.package.harmony_java_text \
+	android.core.tests.libcore.package.harmony_java_util \
+	android.core.tests.libcore.package.harmony_javax_security \
+	android.core.tests.libcore.package.okhttp \
+	android.core.tests.runner
+
+# Additional CTS packages for code under libcore
+CTS_CORE_CASE_LIST += \
+	android.core.tests.libcore.package.tzdata
+
+# The list of test packages that apache-harmony-tests (external/apache-harmony/Android.mk)
+# is split into.
+CTS_CORE_CASE_LIST += \
+	android.core.tests.libcore.package.harmony_beans \
+	android.core.tests.libcore.package.harmony_logging \
+	android.core.tests.libcore.package.harmony_prefs \
+	android.core.tests.libcore.package.harmony_sql
+
+
+CTS_TEST_JAR_LIST := \
+	cts-junit \
+	CtsJdwp
+
+# Depend on the full package paths rather than the phony targets to avoid
+# rebuilding the packages every time.
+CTS_CORE_CASES := $(foreach pkg,$(CTS_CORE_CASE_LIST),$(call intermediates-dir-for,APPS,$(pkg))/package.apk)
+CTS_TEST_JAR_FILES := $(foreach c,$(CTS_TEST_JAR_LIST),$(call intermediates-dir-for,JAVA_LIBRARIES,$(c))/javalib.jar)
+
+-include cts/OldCtsTestCaseList.mk
+
+# A module may have mutliple installed files (e.g. split apks)
+CTS_CASE_LIST_APKS :=
+$(foreach m, $(CTS_TEST_CASE_LIST),\
+  $(foreach fp, $(ALL_MODULES.$(m).BUILT_INSTALLED),\
+    $(eval pair := $(subst :,$(space),$(fp)))\
+    $(eval CTS_CASE_LIST_APKS += $(CTS_TESTCASES_OUT)/$(notdir $(word 2,$(pair))))))\
+$(foreach m, $(CTS_CORE_CASE_LIST),\
+  $(foreach fp, $(ALL_MODULES.$(m).BUILT_INSTALLED),\
+    $(eval pair := $(subst :,$(space),$(fp)))\
+    $(eval built := $(word 1,$(pair)))\
+    $(eval installed := $(CTS_TESTCASES_OUT)/$(notdir $(word 2,$(pair))))\
+    $(eval $(call copy-one-file, $(built), $(installed)))\
+    $(eval CTS_CASE_LIST_APKS += $(installed))))
+
+CTS_CASE_LIST_JARS :=
+$(foreach m, $(CTS_TEST_JAR_LIST),\
+  $(eval CTS_CASE_LIST_JARS += $(CTS_TESTCASES_OUT)/$(m).jar))
+
+CTS_SHARED_LIBS :=
+
+DEFAULT_TEST_PLAN := $(cts_dir)/$(cts_name)/resource/plans
+$(cts_dir)/all_cts_files_stamp: $(CTS_CORE_CASES) $(CTS_TEST_JAR_FILES) $(CTS_TEST_CASES) $(CTS_CASE_LIST_APKS) $(CTS_CASE_LIST_JARS) $(JUNIT_HOST_JAR) $(HOSTTESTLIB_JAR) $(CTS_HOST_LIBRARY_JARS) $(TF_JAR) $(VMTESTSTF_JAR) $(CTS_TF_JAR) $(CTS_TF_EXEC_PATH) $(CTS_TF_README_PATH) $(ADDITIONAL_TF_JARS) $(ACP) $(CTS_SHARED_LIBS)
+
+# Make necessary directory for CTS
+	$(hide) mkdir -p $(TMP_DIR)
+	$(hide) mkdir -p $(PRIVATE_DIR)/docs
+	$(hide) mkdir -p $(PRIVATE_DIR)/tools
+	$(hide) mkdir -p $(PRIVATE_DIR)/repository/testcases
+	$(hide) mkdir -p $(PRIVATE_DIR)/repository/plans
+# Copy executable and JARs to CTS directory
+	$(hide) $(ACP) -fp $(VMTESTSTF_JAR) $(CTS_TESTCASES_OUT)
+	$(hide) $(ACP) -fp $(HOSTTESTLIB_JAR) $(CTS_HOST_LIBRARY_JARS) $(TF_JAR) $(CTS_TF_JAR) $(CTS_TF_EXEC_PATH) $(ADDITIONAL_TF_JARS) $(CTS_TF_README_PATH) $(PRIVATE_DIR)/tools
+	$(hide) $(call copy-files-with-structure, $(CTS_SHARED_LIBS),$(HOST_OUT)/,$(PRIVATE_DIR))
+	$(hide) touch $@
+
+# Generate the test descriptions for the core-tests
+# Parameters:
+# $1 : The output file where the description should be written (without the '.xml' extension)
+# $2 : The AndroidManifest.xml corresponding to the test package
+# $3 : The jar file name on PRIVATE_CLASSPATH containing junit tests to search for
+# $4 : The package prefix of classes to include, possible empty
+# $5 : The architecture of the current build
+# $6 : The directory containing vogar expectations files
+# $7 : The Android.mk corresponding to the test package (required for host-side tests only)
+define generate-core-test-description
+@echo "Generate core-test description ("$(notdir $(1))")"
+$(hide) java -Xmx256M \
+	-Xbootclasspath/a:$(PRIVATE_CLASSPATH):$(JUNIT_HOST_JAR) \
+	-classpath $(HOST_OUT_JAVA_LIBRARIES)/descGen.jar:$(HOST_JDK_TOOLS_JAR) \
+	$(PRIVATE_PARAMS) CollectAllTests $(1) $(2) $(3) "$(4)" $(5) $(6) $(7)
+endef
+
+OJ_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,core-oj,,COMMON)
+CORE_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,core-libart,,COMMON)
+CONSCRYPT_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,conscrypt,,COMMON)
+BOUNCYCASTLE_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,bouncycastle,,COMMON)
+APACHEXML_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,apache-xml,,COMMON)
+OKHTTP_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,okhttp-nojarjar,,COMMON)
+OKHTTPTESTS_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,okhttp-tests-nojarjar,,COMMON)
+OKHTTP_REPACKAGED_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,okhttp,,COMMON)
+APACHEHARMONYTESTS_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,apache-harmony-tests,,COMMON)
+SQLITEJDBC_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,sqlite-jdbc,,COMMON)
+JUNIT_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,core-junit,,COMMON)
+CORETESTS_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,core-tests,,COMMON)
+JSR166TESTS_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,jsr166-tests,,COMMON)
+CONSCRYPTTESTS_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,conscrypt-tests,,COMMON)
+TZDATAUPDATETESTS_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,tzdata_update-tests,,COMMON)
+
+GEN_CLASSPATH := \
+    $(OJ_INTERMEDIATES)/classes.jar:$(CORE_INTERMEDIATES)/classes.jar:$(CONSCRYPT_INTERMEDIATES)/classes.jar:$(BOUNCYCASTLE_INTERMEDIATES)/classes.jar:$(APACHEXML_INTERMEDIATES)/classes.jar:$(APACHEHARMONYTESTS_INTERMEDIATES)/classes.jar:$(OKHTTP_INTERMEDIATES)/classes.jar:$(OKHTTPTESTS_INTERMEDIATES)/classes.jar:$(OKHTTP_REPACKAGED_INTERMEDIATES)/classes.jar:$(JUNIT_INTERMEDIATES)/classes.jar:$(SQLITEJDBC_INTERMEDIATES)/javalib.jar:$(CORETESTS_INTERMEDIATES)/javalib.jar:$(JSR166TESTS_INTERMEDIATES)/javalib.jar:$(CONSCRYPTTESTS_INTERMEDIATES)/javalib.jar:$(TZDATAUPDATETESTS_INTERMEDIATES)/javalib.jar
+
+CTS_CORE_XMLS := \
+	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.dalvik.xml \
+	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.com.xml \
+	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.conscrypt.xml \
+	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.sun.xml \
+	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.tests.xml \
+	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.org.xml \
+	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.libcore.xml \
+	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.jsr166.xml \
+	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_annotation.xml \
+	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_io.xml \
+	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_lang.xml \
+	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_math.xml \
+	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_net.xml \
+	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_nio.xml \
+	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_text.xml \
+	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_util.xml \
+	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_javax_security.xml \
+	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_beans.xml \
+	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_logging.xml \
+	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_prefs.xml \
+	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_sql.xml \
+	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.okhttp.xml \
+	$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.tzdata.xml \
+
+$(CTS_CORE_XMLS): PRIVATE_CLASSPATH:=$(GEN_CLASSPATH)
+# Why does this depend on javalib.jar instead of classes.jar?  Because
+# even though the tool will operate on the classes.jar files, the
+# build system requires that dependencies use javalib.jar.  If
+# javalib.jar is up-to-date, then classes.jar is as well.  Depending
+# on classes.jar will build the files incorrectly.
+CTS_CORE_XMLS_DEPS := $(CTS_CORE_CASES) $(HOST_OUT_JAVA_LIBRARIES)/descGen.jar $(JUNIT_HOST_JAR) $(CORE_INTERMEDIATES)/javalib.jar $(BOUNCYCASTLE_INTERMEDIATES)/javalib.jar $(APACHEXML_INTERMEDIATES)/javalib.jar $(APACHEHARMONYTESTS_INTERMEDIATES)/javalib.jar $(OKHTTP_INTERMEDIATES)/javalib.jar $(OKHTTPTESTS_INTERMEDIATES)/javalib.jar $(OKHTTP_REPACKAGED_INTERMEDIATES)/javalib.jar $(SQLITEJDBC_INTERMEDIATES)/javalib.jar $(JUNIT_INTERMEDIATES)/javalib.jar $(CORETESTS_INTERMEDIATES)/javalib.jar $(JSR166TESTS_INTERMEDIATES)/javalib.jar $(CONSCRYPTTESTS_INTERMEDIATES)/javalib.jar $(TZDATAUPDATETESTS_INTERMEDIATES)/javalib.jar build/core/tasks/cts.mk | $(ACP)
+
+$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.dalvik.xml: $(CTS_CORE_XMLS_DEPS)
+	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
+	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.dalvik,\
+		cts/tests/core/libcore/dalvik/AndroidManifest.xml,\
+		$(CORETESTS_INTERMEDIATES)/javalib.jar,dalvik,\
+		$(TARGET_ARCH),libcore/expectations)
+
+$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.com.xml: $(CTS_CORE_XMLS_DEPS)
+	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
+	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.com,\
+		cts/tests/core/libcore/com/AndroidManifest.xml,\
+		$(CORETESTS_INTERMEDIATES)/javalib.jar,com,\
+		$(TARGET_ARCH),libcore/expectations)
+
+$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.conscrypt.xml: $(CTS_CORE_XMLS_DEPS)
+	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
+	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.conscrypt,\
+		cts/tests/core/libcore/conscrypt/AndroidManifest.xml,\
+		$(CONSCRYPTTESTS_INTERMEDIATES)/javalib.jar,,\
+		$(TARGET_ARCH),libcore/expectations)
+
+$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.sun.xml: $(CTS_CORE_XMLS_DEPS)
+	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
+	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.sun,\
+		cts/tests/core/libcore/sun/AndroidManifest.xml,\
+		$(CORETESTS_INTERMEDIATES)/javalib.jar,sun,\
+		$(TARGET_ARCH),libcore/expectations)
+
+$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.tests.xml: $(CTS_CORE_XMLS_DEPS)
+	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
+	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.tests,\
+		cts/tests/core/libcore/tests/AndroidManifest.xml,\
+		$(CORETESTS_INTERMEDIATES)/javalib.jar,tests,\
+		$(TARGET_ARCH),libcore/expectations)
+
+$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.org.xml: $(CTS_CORE_XMLS_DEPS)
+	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
+	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.org,\
+		cts/tests/core/libcore/org/AndroidManifest.xml,\
+		$(CORETESTS_INTERMEDIATES)/javalib.jar,\
+		org.w3c.domts:\
+		org.apache.harmony.security.tests:\
+		org.apache.harmony.nio.tests:\
+		org.apache.harmony.crypto.tests:\
+		org.apache.harmony.regex.tests:\
+		org.apache.harmony.luni.tests:\
+		org.apache.harmony.tests.internal.net.www.protocol:\
+		org.apache.harmony.tests.javax.net:\
+		org.json,\
+		$(TARGET_ARCH),libcore/expectations)
+
+$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.libcore.xml: $(CTS_CORE_XMLS_DEPS)
+	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
+	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.libcore,\
+		cts/tests/core/libcore/libcore/AndroidManifest.xml,\
+		$(CORETESTS_INTERMEDIATES)/javalib.jar,libcore,\
+		$(TARGET_ARCH),libcore/expectations)
+
+$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.jsr166.xml: $(CTS_CORE_XMLS_DEPS)
+	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
+	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.jsr166,\
+		cts/tests/core/libcore/jsr166/AndroidManifest.xml,\
+		$(JSR166TESTS_INTERMEDIATES)/javalib.jar,jsr166,\
+		$(TARGET_ARCH),libcore/expectations)
+
+$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_annotation.xml: $(CTS_CORE_XMLS_DEPS)
+	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
+	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_annotation,\
+		cts/tests/core/libcore/harmony_annotation/AndroidManifest.xml,\
+		$(CORETESTS_INTERMEDIATES)/javalib.jar,org.apache.harmony.annotation.tests,\
+		$(TARGET_ARCH),libcore/expectations)
+
+$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_io.xml: $(CTS_CORE_XMLS_DEPS)
+	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
+	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_io,\
+		cts/tests/core/libcore/harmony_java_io/AndroidManifest.xml,\
+		$(CORETESTS_INTERMEDIATES)/javalib.jar,org.apache.harmony.tests.java.io,\
+		$(TARGET_ARCH),libcore/expectations)
+
+$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_lang.xml: $(CTS_CORE_XMLS_DEPS)
+	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
+	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_lang,\
+		cts/tests/core/libcore/harmony_java_lang/AndroidManifest.xml,\
+		$(CORETESTS_INTERMEDIATES)/javalib.jar,org.apache.harmony.tests.java.lang,\
+		$(TARGET_ARCH),libcore/expectations)
+
+$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_math.xml: $(CTS_CORE_XMLS_DEPS)
+	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
+	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_math,\
+		cts/tests/core/libcore/harmony_java_math/AndroidManifest.xml,\
+		$(CORETESTS_INTERMEDIATES)/javalib.jar,org.apache.harmony.tests.java.math,\
+		$(TARGET_ARCH),libcore/expectations)
+
+$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_net.xml: $(CTS_CORE_XMLS_DEPS)
+	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
+	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_net,\
+		cts/tests/core/libcore/harmony_java_net/AndroidManifest.xml,\
+		$(CORETESTS_INTERMEDIATES)/javalib.jar,org.apache.harmony.tests.java.net,\
+		$(TARGET_ARCH),libcore/expectations)
+
+$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_nio.xml: $(CTS_CORE_XMLS_DEPS)
+	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
+	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_nio,\
+		cts/tests/core/libcore/harmony_java_nio/AndroidManifest.xml,\
+		$(CORETESTS_INTERMEDIATES)/javalib.jar,org.apache.harmony.tests.java.nio,\
+		$(TARGET_ARCH),libcore/expectations)
+
+$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_text.xml: $(CTS_CORE_XMLS_DEPS)
+	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
+	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_text,\
+		cts/tests/core/libcore/harmony_java_text/AndroidManifest.xml,\
+		$(CORETESTS_INTERMEDIATES)/javalib.jar,org.apache.harmony.tests.java.text,\
+		$(TARGET_ARCH),libcore/expectations)
+
+$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_util.xml: $(CTS_CORE_XMLS_DEPS)
+	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
+	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_java_util,\
+		cts/tests/core/libcore/harmony_java_util/AndroidManifest.xml,\
+		$(CORETESTS_INTERMEDIATES)/javalib.jar,org.apache.harmony.tests.java.util,\
+		$(TARGET_ARCH),libcore/expectations)
+
+$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_javax_security.xml: $(CTS_CORE_XMLS_DEPS)
+	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
+	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_javax_security,\
+		cts/tests/core/libcore/harmony_javax_security/AndroidManifest.xml,\
+		$(CORETESTS_INTERMEDIATES)/javalib.jar,org.apache.harmony.tests.javax.security,\
+		$(TARGET_ARCH),libcore/expectations)
+
+$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_beans.xml: $(CTS_CORE_XMLS_DEPS)
+	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
+	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_beans,\
+		cts/tests/core/libcore/harmony_beans/AndroidManifest.xml,\
+		$(APACHEHARMONYTESTS_INTERMEDIATES)/javalib.jar,com.android.org.apache.harmony.beans,\
+		$(TARGET_ARCH),libcore/expectations external/apache-harmony/Android.mk)
+
+$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_logging.xml: $(CTS_CORE_XMLS_DEPS)
+	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
+	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_logging,\
+		cts/tests/core/libcore/harmony_logging/AndroidManifest.xml,\
+		$(APACHEHARMONYTESTS_INTERMEDIATES)/javalib.jar,com.android.org.apache.harmony.logging,\
+		$(TARGET_ARCH),libcore/expectations external/apache-harmony/Android.mk)
+
+$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_prefs.xml: $(CTS_CORE_XMLS_DEPS)
+	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
+	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_prefs,\
+		cts/tests/core/libcore/harmony_prefs/AndroidManifest.xml,\
+		$(APACHEHARMONYTESTS_INTERMEDIATES)/javalib.jar,com.android.org.apache.harmony.prefs,\
+		$(TARGET_ARCH),libcore/expectations external/apache-harmony/Android.mk)
+
+$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_sql.xml: $(CTS_CORE_XMLS_DEPS)
+	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
+	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.harmony_sql,\
+		cts/tests/core/libcore/harmony_sql/AndroidManifest.xml,\
+		$(APACHEHARMONYTESTS_INTERMEDIATES)/javalib.jar,com.android.org.apache.harmony.sql,\
+		$(TARGET_ARCH),libcore/expectations external/apache-harmony/Android.mk)
+
+$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.okhttp.xml: $(CTS_CORE_XMLS_DEPS)
+	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
+	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.okhttp,\
+		cts/tests/core/libcore/okhttp/AndroidManifest.xml,\
+		$(OKHTTPTESTS_INTERMEDIATES)/javalib.jar,,\
+		$(TARGET_ARCH),libcore/expectations)
+
+$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.tzdata.xml: $(CTS_CORE_XMLS_DEPS)
+	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
+	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.tests.libcore.package.tzdata,\
+		cts/tests/core/libcore/tzdata/AndroidManifest.xml,\
+		$(TZDATAUPDATETESTS_INTERMEDIATES)/javalib.jar,,\
+		$(TARGET_ARCH),libcore/expectations)
+
+# ----- Generate the test descriptions for the vm-tests-tf -----
+#
+CORE_VM_TEST_TF_DESC := $(CTS_TESTCASES_OUT)/android.core.vm-tests-tf.xml
+
+# core tests only needed to get hold of junit-framework-classes
+OJ_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,core-oj,,COMMON)
+CORE_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,core-libart,,COMMON)
+JUNIT_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,core-junit,,COMMON)
+
+GEN_CLASSPATH := $(OJ_INTERMEDIATES)/classes.jar:$(CORE_INTERMEDIATES)/classes.jar:$(JUNIT_INTERMEDIATES)/classes.jar:$(VMTESTSTF_JAR):$(TF_JAR)
+
+$(CORE_VM_TEST_TF_DESC): PRIVATE_CLASSPATH:=$(GEN_CLASSPATH)
+# Please see big comment above on why this line depends on javalib.jar instead of classes.jar
+$(CORE_VM_TEST_TF_DESC): $(HOST_OUT_JAVA_LIBRARIES)/descGen.jar $(JUNIT_HOST_JAR) $(CORE_INTERMEDIATES)/javalib.jar $(JUNIT_INTERMEDIATES)/javalib.jar $(VMTESTSTF_JAR) | $(ACP)
+	$(hide) mkdir -p $(CTS_TESTCASES_OUT)
+	$(call generate-core-test-description,$(CTS_TESTCASES_OUT)/android.core.vm-tests-tf,\
+		cts/tests/vm-tests-tf/AndroidManifest.xml,\
+		$(VMTESTSTF_JAR),"",\
+		$(TARGET_ARCH),\
+		libcore/expectations,\
+		cts/tools/vm-tests-tf/Android.mk)
+
+# Generate the default test plan for User.
+# Usage: buildCts.py <testRoot> <ctsOutputDir> <tempDir> <androidRootDir> <docletPath>
+
+$(DEFAULT_TEST_PLAN): $(cts_dir)/all_cts_files_stamp $(cts_tools_src_dir)/utils/buildCts.py $(HOST_OUT_JAVA_LIBRARIES)/descGen.jar $(CTS_CORE_XMLS) $(CTS_TEST_XMLS) $(CORE_VM_TEST_TF_DESC)
+	$(hide) $(cts_tools_src_dir)/utils/buildCts.py cts/tests/tests/ $(PRIVATE_DIR) $(TMP_DIR) \
+		$(TOP) $(HOST_OUT_JAVA_LIBRARIES)/descGen.jar
+	$(hide) mkdir -p $(dir $@) && touch $@
+
+# Package CTS and clean up.
+#
+# TODO:
+#   Pack cts.bat into the same zip file as well. See http://buganizer/issue?id=1656821 for more details
+INTERNAL_CTS_TARGET := $(cts_dir)/$(cts_name).zip
+$(INTERNAL_CTS_TARGET): PRIVATE_NAME := $(cts_name)
+$(INTERNAL_CTS_TARGET): PRIVATE_CTS_DIR := $(cts_dir)
+$(INTERNAL_CTS_TARGET): PRIVATE_DIR := $(cts_dir)/$(cts_name)
+$(INTERNAL_CTS_TARGET): TMP_DIR := $(cts_dir)/temp
+$(INTERNAL_CTS_TARGET): $(cts_dir)/all_cts_files_stamp $(DEFAULT_TEST_PLAN)
+	$(hide) echo "Package CTS: $@"
+	$(hide) cd $(dir $@) && zip -rqX $(notdir $@) $(PRIVATE_NAME)
+
+.PHONY: old-cts
+old-cts: $(INTERNAL_CTS_TARGET) adb
+$(call dist-for-goals,old-cts,$(INTERNAL_CTS_TARGET))
diff --git a/core/tasks/tools/compatibility.mk b/core/tasks/tools/compatibility.mk
new file mode 100644
index 0000000..d8f900e
--- /dev/null
+++ b/core/tasks/tools/compatibility.mk
@@ -0,0 +1,52 @@
+# Copyright (C) 2015 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.
+
+# Package up a compatibility test suite in a zip file.
+#
+# Input variables:
+#   test_suite_name: the name of this test suite eg. cts
+#   test_suite_tradefed: the name of this test suite's tradefed wrapper
+#   test_suite_dynamic_config: the path to this test suite's dynamic configuration file
+#   test_suite_readme: the path to a README file for this test suite
+# Output variables:
+#   compatibility_zip: the path to the output zip file.
+
+out_dir := $(HOST_OUT)/$(test_suite_name)/android-$(test_suite_name)
+test_artifacts := $(COMPATIBILITY.$(test_suite_name).FILES)
+test_tools := $(HOST_OUT_JAVA_LIBRARIES)/hosttestlib.jar \
+  $(HOST_OUT_JAVA_LIBRARIES)/tradefed-prebuilt.jar \
+  $(HOST_OUT_JAVA_LIBRARIES)/compatibility-host-util.jar \
+  $(HOST_OUT_JAVA_LIBRARIES)/$(test_suite_tradefed).jar \
+  $(HOST_OUT_EXECUTABLES)/$(test_suite_tradefed) \
+  $(test_suite_readme)
+
+compatibility_zip := $(out_dir).zip
+$(compatibility_zip): PRIVATE_NAME := android-$(test_suite_name)
+$(compatibility_zip): PRIVATE_OUT_DIR := $(out_dir)
+$(compatibility_zip): PRIVATE_TOOLS := $(test_tools)
+$(compatibility_zip): PRIVATE_SUITE_NAME := $(test_suite_name)
+$(compatibility_zip): PRIVATE_DYNAMIC_CONFIG := $(test_suite_dynamic_config)
+$(compatibility_zip): $(test_artifacts) $(test_tools) $(test_suite_dynamic_config) | $(ADB) $(ACP)
+# Make dir structure
+	$(hide) mkdir -p $(PRIVATE_OUT_DIR)/tools $(PRIVATE_OUT_DIR)/testcases
+# Copy tools
+	$(hide) $(ACP) -fp $(PRIVATE_TOOLS) $(PRIVATE_OUT_DIR)/tools
+	$(if $(PRIVATE_DYNAMIC_CONFIG),$(hide) $(ACP) -fp $(PRIVATE_DYNAMIC_CONFIG) $(PRIVATE_OUT_DIR)/testcases/$(PRIVATE_SUITE_NAME).dynamic)
+	$(hide) cd $(dir $@) && zip -rq $(notdir $@) $(PRIVATE_NAME)
+
+# Reset all input variables
+test_suite_name :=
+test_suite_tradefed :=
+test_suite_dynamic_config :=
+test_suite_readme :=
diff --git a/core/tasks/vts.mk b/core/tasks/vts.mk
new file mode 100644
index 0000000..507f22e
--- /dev/null
+++ b/core/tasks/vts.mk
@@ -0,0 +1,23 @@
+# Copyright (C) 2016 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.
+
+test_suite_name := vts
+test_suite_tradefed := vts-tradefed
+test_suite_readme := test/vts/README.md
+
+include $(BUILD_SYSTEM)/tasks/tools/compatibility.mk
+
+.PHONY: vts
+vts: $(compatibility_zip)
+$(call dist-for-goals, vts, $(compatibility_zip))
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 099b38d..143f25f 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -43,7 +43,7 @@
   # which is the version that we reveal to the end user.
   # Update this value when the platform version changes (rather
   # than overriding it somewhere else).  Can be an arbitrary string.
-  PLATFORM_VERSION := 6.0.1
+  PLATFORM_VERSION := N
 endif
 
 ifeq "" "$(PLATFORM_SDK_VERSION)"
@@ -70,7 +70,7 @@
 ifeq "" "$(PLATFORM_VERSION_CODENAME)"
   # This is the current development code-name, if the build is not a final
   # release build.  If this is a final release build, it is simply "REL".
-  PLATFORM_VERSION_CODENAME := REL
+  PLATFORM_VERSION_CODENAME := N
 
   # This is all of the development codenames that are active.  Should be either
   # the same as PLATFORM_VERSION_CODENAME or a comma-separated list of additional
@@ -91,7 +91,7 @@
     # assuming the device can only support APIs as of the previous official
     # public release.
     # This value will always be 0 for release builds.
-    PLATFORM_PREVIEW_SDK_VERSION := 0
+    PLATFORM_PREVIEW_SDK_VERSION := 2
   endif
 endif
 
@@ -113,7 +113,7 @@
   # Can be an arbitrary string, but must be a single word.
   #
   # If there is no $PLATFORM_SECURITY_PATCH set, keep it empty.
-  PLATFORM_SECURITY_PATCH := 2016-03-01
+  PLATFORM_SECURITY_PATCH := 2016-05-01
 endif
 
 ifeq "" "$(PLATFORM_BASE_OS)"
diff --git a/target/board/generic/BoardConfig.mk b/target/board/generic/BoardConfig.mk
index 4e5504e..325b0ce 100644
--- a/target/board/generic/BoardConfig.mk
+++ b/target/board/generic/BoardConfig.mk
@@ -68,7 +68,7 @@
 VSYNC_EVENT_PHASE_OFFSET_NS := 0
 
 TARGET_USERIMAGES_USE_EXT4 := true
-BOARD_SYSTEMIMAGE_PARTITION_SIZE := 1610612736
+BOARD_SYSTEMIMAGE_PARTITION_SIZE := 1879048192  # 1.75 GB
 BOARD_USERDATAIMAGE_PARTITION_SIZE := 576716800
 BOARD_CACHEIMAGE_PARTITION_SIZE := 69206016
 BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE := ext4
diff --git a/target/board/generic/sepolicy/file_contexts b/target/board/generic/sepolicy/file_contexts
index e704a8e..e8d32f7 100644
--- a/target/board/generic/sepolicy/file_contexts
+++ b/target/board/generic/sepolicy/file_contexts
@@ -1,6 +1,13 @@
+# goldfish
 /dev/block/mtdblock0         u:object_r:system_block_device:s0
 /dev/block/mtdblock1         u:object_r:userdata_block_device:s0
 /dev/block/mtdblock2         u:object_r:cache_block_device:s0
+
+# ranchu
+/dev/block/vda               u:object_r:system_block_device:s0
+/dev/block/vdb               u:object_r:cache_block_device:s0
+/dev/block/vdc               u:object_r:userdata_block_device:s0
+
 /dev/goldfish_pipe           u:object_r:qemu_device:s0
 /dev/qemu_.*                 u:object_r:qemu_device:s0
 /dev/socket/qemud            u:object_r:qemud_socket:s0
diff --git a/target/board/generic/sepolicy/surfaceflinger.te b/target/board/generic/sepolicy/surfaceflinger.te
index 4c35469..e03d07e 100644
--- a/target/board/generic/sepolicy/surfaceflinger.te
+++ b/target/board/generic/sepolicy/surfaceflinger.te
@@ -1,2 +1,4 @@
 allow surfaceflinger self:process execmem;
 allow surfaceflinger ashmem_device:chr_file execute;
+
+set_prop(surfaceflinger, qemu_prop)
diff --git a/target/board/generic_arm64/BoardConfig.mk b/target/board/generic_arm64/BoardConfig.mk
index b757da1..02d0a6f 100644
--- a/target/board/generic_arm64/BoardConfig.mk
+++ b/target/board/generic_arm64/BoardConfig.mk
@@ -76,7 +76,7 @@
 USE_OPENGL_RENDERER := true
 
 TARGET_USERIMAGES_USE_EXT4 := true
-BOARD_SYSTEMIMAGE_PARTITION_SIZE := 1610612736
+BOARD_SYSTEMIMAGE_PARTITION_SIZE := 1879048192  # 1.75 GB
 BOARD_USERDATAIMAGE_PARTITION_SIZE := 576716800
 BOARD_CACHEIMAGE_PARTITION_SIZE := 69206016
 BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE := ext4
diff --git a/target/board/generic_mips/BoardConfig.mk b/target/board/generic_mips/BoardConfig.mk
index 76a2ef4..1152105 100644
--- a/target/board/generic_mips/BoardConfig.mk
+++ b/target/board/generic_mips/BoardConfig.mk
@@ -53,7 +53,7 @@
 USE_OPENGL_RENDERER := true
 
 TARGET_USERIMAGES_USE_EXT4 := true
-BOARD_SYSTEMIMAGE_PARTITION_SIZE := 1342177280
+BOARD_SYSTEMIMAGE_PARTITION_SIZE := 1879048192  # 1.75 GB
 BOARD_USERDATAIMAGE_PARTITION_SIZE := 734003200
 BOARD_CACHEIMAGE_PARTITION_SIZE := 69206016
 BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE := ext4
diff --git a/target/board/generic_mips64/BoardConfig.mk b/target/board/generic_mips64/BoardConfig.mk
index 8e8a68b..ebc1675 100644
--- a/target/board/generic_mips64/BoardConfig.mk
+++ b/target/board/generic_mips64/BoardConfig.mk
@@ -65,7 +65,7 @@
 USE_OPENGL_RENDERER := true
 
 TARGET_USERIMAGES_USE_EXT4 := true
-BOARD_SYSTEMIMAGE_PARTITION_SIZE := 1342177280  # 1.25 GB swag, 20% more than before
+BOARD_SYSTEMIMAGE_PARTITION_SIZE := 1879048192  # 1.75 GB
 BOARD_USERDATAIMAGE_PARTITION_SIZE := 1610612736  # 1.5 GB, lots of space for running tests
 BOARD_CACHEIMAGE_PARTITION_SIZE := 69206016
 BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE := ext4
diff --git a/target/board/generic_x86/BoardConfig.mk b/target/board/generic_x86/BoardConfig.mk
index b54f6f0..50ecb98 100644
--- a/target/board/generic_x86/BoardConfig.mk
+++ b/target/board/generic_x86/BoardConfig.mk
@@ -32,7 +32,7 @@
 USE_OPENGL_RENDERER := true
 
 TARGET_USERIMAGES_USE_EXT4 := true
-BOARD_SYSTEMIMAGE_PARTITION_SIZE := 1342177280  # 1.25 GB
+BOARD_SYSTEMIMAGE_PARTITION_SIZE := 1610612736
 BOARD_USERDATAIMAGE_PARTITION_SIZE := 576716800
 BOARD_CACHEIMAGE_PARTITION_SIZE := 69206016
 BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE := ext4
diff --git a/target/board/generic_x86_64/BoardConfig.mk b/target/board/generic_x86_64/BoardConfig.mk
index 783fc77..553bec9 100755
--- a/target/board/generic_x86_64/BoardConfig.mk
+++ b/target/board/generic_x86_64/BoardConfig.mk
@@ -38,7 +38,7 @@
 USE_OPENGL_RENDERER := true
 
 TARGET_USERIMAGES_USE_EXT4 := true
-BOARD_SYSTEMIMAGE_PARTITION_SIZE := 1342177280  # 1.25 GB
+BOARD_SYSTEMIMAGE_PARTITION_SIZE := 1879048192  # 1.75 GB
 BOARD_USERDATAIMAGE_PARTITION_SIZE := 576716800
 BOARD_CACHEIMAGE_PARTITION_SIZE := 69206016
 BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE := ext4
diff --git a/target/product/aosp_arm64.mk b/target/product/aosp_arm64.mk
index 6232295..98afe5f 100644
--- a/target/product/aosp_arm64.mk
+++ b/target/product/aosp_arm64.mk
@@ -21,8 +21,6 @@
 
 # This is for enabling ethernet support for ranchu.
 # Consider removing this after RIL support is provided in ranchu.
-# Having this permission file on the target requires additional
-# dhcpcd_eth0 service defined in the init.ranchu.rc.
 PRODUCT_COPY_FILES += frameworks/native/data/etc/android.hardware.ethernet.xml:system/etc/permissions/android.hardware.ethernet.xml
 
 $(call inherit-product, $(SRC_TARGET_DIR)/product/core_64_bit.mk)
diff --git a/target/product/aosp_mips64.mk b/target/product/aosp_mips64.mk
index d485677..f606858 100644
--- a/target/product/aosp_mips64.mk
+++ b/target/product/aosp_mips64.mk
@@ -21,8 +21,6 @@
 
 # This is for enabling ethernet support for ranchu.
 # Consider removing this after RIL support is provided in ranchu.
-# Having this permission file on the target requires additional
-# dhcpcd_eth0 service defined in the init.ranchu.rc.
 PRODUCT_COPY_FILES += frameworks/native/data/etc/android.hardware.ethernet.xml:system/etc/permissions/android.hardware.ethernet.xml
 
 $(call inherit-product, $(SRC_TARGET_DIR)/product/core_64_bit.mk)
diff --git a/target/product/aosp_x86_64.mk b/target/product/aosp_x86_64.mk
index 6c01e5a..4006346 100644
--- a/target/product/aosp_x86_64.mk
+++ b/target/product/aosp_x86_64.mk
@@ -25,8 +25,6 @@
 
 # This is for enabling ethernet support for ranchu.
 # Consider removing this after RIL support is provided in ranchu.
-# Having this permission file on the target requires additional
-# dhcpcd_eth0 service defined in the init.ranchu.rc.
 PRODUCT_COPY_FILES += frameworks/native/data/etc/android.hardware.ethernet.xml:system/etc/permissions/android.hardware.ethernet.xml
 
 $(call inherit-product, $(SRC_TARGET_DIR)/product/core_64_bit.mk)
diff --git a/target/product/base.mk b/target/product/base.mk
index 4c49e86..7ff0b0a 100644
--- a/target/product/base.mk
+++ b/target/product/base.mk
@@ -26,12 +26,12 @@
     android.test.runner \
     app_process \
     applypatch \
+    audioserver \
     blkid \
     bmgr \
     bugreport \
+    cameraserver \
     content \
-    dhcpcd \
-    dhcpcd-run-hooks \
     dnsmasq \
     dpm \
     framework \
@@ -39,6 +39,9 @@
     hid \
     ime \
     input \
+    input.evdev.default \
+    inputflinger \
+    inputflingerhost \
     javax.obex \
     libandroid \
     libandroid_runtime \
@@ -50,12 +53,14 @@
     libbundlewrapper \
     libcamera_client \
     libcameraservice \
+    libcamera2ndk \
     libdl \
     libdrmclearkeyplugin \
     libeffectproxy \
     libeffects \
     libinput \
     libinputflinger \
+    libinputflingerhost \
     libiprouteutil \
     libjnigraphics \
     libldnhncr \
@@ -94,10 +99,14 @@
     libvisualizer \
     libvorbisidec \
     libmediandk \
+    libvulkan \
     libwifi-service \
     media \
     media_cmd \
+    mediadrmserver \
     mediaserver \
+    mediacodec \
+    mediaextractor \
     monkey \
     mtpd \
     ndc \
@@ -123,6 +132,12 @@
     vold \
     wm
 
+# TODO: Remove after N. Set WifiHAL to only log debug by default.
+# This is not the proper way to really fix this, but it is the best thing to
+# do in the time period we have for N.  In the future they will be moving
+# more to a dumpsys style approach.
+PRODUCT_PROPERTY_OVERRIDES += \
+    persist.log.tag.WifiHAL=I
 
 PRODUCT_COPY_FILES := $(call add-to-product-copy-files-if-exists,\
     frameworks/base/preloaded-classes:system/etc/preloaded-classes)
diff --git a/target/product/core.mk b/target/product/core.mk
index 065474d..75cf649 100644
--- a/target/product/core.mk
+++ b/target/product/core.mk
@@ -22,6 +22,7 @@
 
 PRODUCT_PACKAGES += \
     BasicDreams \
+    BlockedNumberProvider \
     BookmarkProvider \
     Browser2 \
     Calendar \
@@ -42,10 +43,12 @@
     LatinIME \
     Launcher2 \
     ManagedProvisioning \
+    MtpDocumentsProvider \
     PicoTts \
     PacProcessor \
     libpac \
     PrintSpooler \
+    PrintRecommendationService \
     ProxyHandler \
     QuickSearchBox \
     Settings \
diff --git a/target/product/core_minimal.mk b/target/product/core_minimal.mk
index 998f4ae..13f23ad 100644
--- a/target/product/core_minimal.mk
+++ b/target/product/core_minimal.mk
@@ -117,5 +117,24 @@
 PRODUCT_COPY_FILES += \
     system/core/rootdir/etc/public.libraries.android.txt:system/etc/public.libraries.txt
 
+# Different dexopt types for different package update/install times.
+# On eng builds, make "boot" reasons do pure JIT for faster turnaround.
+ifeq (eng,$(TARGET_BUILD_VARIANT))
+    PRODUCT_DEFAULT_PROPERTY_OVERRIDES += \
+        pm.dexopt.first-boot=verify-at-runtime \
+        pm.dexopt.boot=verify-at-runtime
+else
+    PRODUCT_DEFAULT_PROPERTY_OVERRIDES += \
+        pm.dexopt.first-boot=interpret-only \
+        pm.dexopt.boot=verify-profile
+endif
+PRODUCT_DEFAULT_PROPERTY_OVERRIDES += \
+    pm.dexopt.install=interpret-only \
+    pm.dexopt.bg-dexopt=speed-profile \
+    pm.dexopt.ab-ota=speed-profile \
+    pm.dexopt.nsys-library=speed \
+    pm.dexopt.shared-apk=speed \
+    pm.dexopt.forced-dexopt=speed
+
 $(call inherit-product, $(SRC_TARGET_DIR)/product/runtime_libart.mk)
 $(call inherit-product, $(SRC_TARGET_DIR)/product/base.mk)
diff --git a/target/product/core_tiny.mk b/target/product/core_tiny.mk
index 3e3220b..9c94574 100644
--- a/target/product/core_tiny.mk
+++ b/target/product/core_tiny.mk
@@ -107,6 +107,25 @@
 PRODUCT_PROPERTY_OVERRIDES += \
     ro.carrier=unknown
 
+# Different dexopt types for different package update/install times.
+# On eng builds, make "boot" reasons do pure JIT for faster turnaround.
+ifeq (eng,$(TARGET_BUILD_VARIANT))
+    PRODUCT_DEFAULT_PROPERTY_OVERRIDES += \
+        pm.dexopt.first-boot=verify-at-runtime \
+        pm.dexopt.boot=verify-at-runtime
+else
+    PRODUCT_DEFAULT_PROPERTY_OVERRIDES += \
+        pm.dexopt.first-boot=interpret-only \
+        pm.dexopt.boot=verify-profile
+endif
+PRODUCT_DEFAULT_PROPERTY_OVERRIDES += \
+    pm.dexopt.install=interpret-only \
+    pm.dexopt.bg-dexopt=speed-profile \
+    pm.dexopt.ab-ota=speed-profile \
+    pm.dexopt.nsys-library=speed \
+    pm.dexopt.shared-apk=speed \
+    pm.dexopt.forced-dexopt=speed
+
 $(call inherit-product, $(SRC_TARGET_DIR)/product/runtime_libart.mk)
 $(call inherit-product, $(SRC_TARGET_DIR)/product/base.mk)
 $(call inherit-product-if-exists, frameworks/base/data/fonts/fonts.mk)
diff --git a/target/product/embedded.mk b/target/product/embedded.mk
index 71456dc..55de3b9 100644
--- a/target/product/embedded.mk
+++ b/target/product/embedded.mk
@@ -23,6 +23,7 @@
     atrace \
     bootanimation \
     bootstat \
+    cmd \
     debuggerd \
     dumpstate \
     dumpsys \
diff --git a/target/product/emulator.mk b/target/product/emulator.mk
index acc7a98..d02c547 100644
--- a/target/product/emulator.mk
+++ b/target/product/emulator.mk
@@ -39,8 +39,11 @@
     qemud \
     camera.goldfish \
     camera.goldfish.jpeg \
+    camera.ranchu \
+    camera.ranchu.jpeg \
     lights.goldfish \
     gps.goldfish \
+    gps.ranchu \
     fingerprint.goldfish \
     sensors.goldfish \
     audio.primary.goldfish \
@@ -51,7 +54,6 @@
     sensors.ranchu
 
 PRODUCT_COPY_FILES += \
-    frameworks/native/data/etc/android.hardware.ethernet.xml:system/etc/permissions/android.hardware.ethernet.xml \
     device/generic/goldfish/fstab.goldfish:root/fstab.goldfish \
     device/generic/goldfish/init.goldfish.rc:root/init.goldfish.rc \
     device/generic/goldfish/init.goldfish.sh:system/etc/init.goldfish.sh \
@@ -59,3 +61,7 @@
     device/generic/goldfish/init.ranchu.rc:root/init.ranchu.rc \
     device/generic/goldfish/fstab.ranchu:root/fstab.ranchu \
     device/generic/goldfish/ueventd.ranchu.rc:root/ueventd.ranchu.rc
+
+PRODUCT_PACKAGE_OVERLAYS := device/generic/goldfish/overlay
+
+PRODUCT_CHARACTERISTICS := emulator
diff --git a/target/product/runtime_libart.mk b/target/product/runtime_libart.mk
index 3782869..ffc698d 100644
--- a/target/product/runtime_libart.mk
+++ b/target/product/runtime_libart.mk
@@ -56,3 +56,6 @@
     dalvik.vm.dex2oat-Xms=64m \
     dalvik.vm.dex2oat-Xmx=512m \
     ro.dalvik.vm.native.bridge=0 \
+    dalvik.vm.usejit=true \
+    dalvik.vm.usejitprofiles=true \
+    dalvik.vm.appimageformat=lz4
diff --git a/target/product/sdk_base.mk b/target/product/sdk_base.mk
index 73c2524..2945f8c 100644
--- a/target/product/sdk_base.mk
+++ b/target/product/sdk_base.mk
@@ -61,8 +61,10 @@
 
 PRODUCT_COPY_FILES := \
 	device/generic/goldfish/data/etc/apns-conf.xml:system/etc/apns-conf.xml \
+	device/sample/etc/old-apns-conf.xml:system/etc/old-apns-conf.xml \
 	frameworks/base/data/sounds/effects/camera_click.ogg:system/media/audio/ui/camera_click.ogg \
 	frameworks/base/data/sounds/effects/VideoRecord.ogg:system/media/audio/ui/VideoRecord.ogg \
+	frameworks/base/data/sounds/effects/VideoStop.ogg:system/media/audio/ui/VideoStop.ogg \
 	device/generic/goldfish/data/etc/handheld_core_hardware.xml:system/etc/permissions/handheld_core_hardware.xml \
 	device/generic/goldfish/camera/media_profiles.xml:system/etc/media_profiles.xml \
 	frameworks/av/media/libstagefright/data/media_codecs_google_audio.xml:system/etc/media_codecs_google_audio.xml \
@@ -71,6 +73,7 @@
 	device/generic/goldfish/camera/media_codecs.xml:system/etc/media_codecs.xml \
 	frameworks/native/data/etc/android.hardware.touchscreen.multitouch.jazzhand.xml:system/etc/permissions/android.hardware.touchscreen.multitouch.jazzhand.xml \
 	frameworks/native/data/etc/android.hardware.camera.autofocus.xml:system/etc/permissions/android.hardware.camera.autofocus.xml \
+	frameworks/native/data/etc/android.hardware.fingerprint.xml:system/etc/permissions/android.hardware.fingerprint.xml \
 	frameworks/av/media/libeffects/data/audio_effects.conf:system/etc/audio_effects.conf \
 	hardware/libhardware_legacy/audio/audio_policy.conf:system/etc/audio_policy.conf
 
diff --git a/target/product/sdk_phone_arm64.mk b/target/product/sdk_phone_arm64.mk
index 1d13b9e..a689475 100644
--- a/target/product/sdk_phone_arm64.mk
+++ b/target/product/sdk_phone_arm64.mk
@@ -23,6 +23,12 @@
 $(call inherit-product, $(SRC_TARGET_DIR)/product/sdk_base.mk)
 $(call inherit-product, $(SRC_TARGET_DIR)/board/generic_arm64/device.mk)
 
+# AOSP emulator images build the AOSP messaging app.
+# Google API images override with the Google API app.
+# See vendor/google/products/sdk_google_phone_*.mk
+PRODUCT_PACKAGES += \
+    messaging
+
 # Overrides
 PRODUCT_BRAND := Android
 PRODUCT_NAME := sdk_phone_arm64
diff --git a/target/product/sdk_phone_armv7.mk b/target/product/sdk_phone_armv7.mk
index a0fa049..ebdd0e7 100644
--- a/target/product/sdk_phone_armv7.mk
+++ b/target/product/sdk_phone_armv7.mk
@@ -16,6 +16,12 @@
 
 $(call inherit-product, $(SRC_TARGET_DIR)/product/sdk_base.mk)
 
+# AOSP emulator images build the AOSP messaging app.
+# Google API images override with the Google API app.
+# See vendor/google/products/sdk_google_phone_*.mk
+PRODUCT_PACKAGES += \
+    messaging
+
 # Overrides
 PRODUCT_BRAND := Android
 PRODUCT_NAME := sdk_phone_armv7
diff --git a/target/product/sdk_phone_mips.mk b/target/product/sdk_phone_mips.mk
index d7217a0..1cc2fe4 100644
--- a/target/product/sdk_phone_mips.mk
+++ b/target/product/sdk_phone_mips.mk
@@ -21,6 +21,12 @@
 
 $(call inherit-product, $(SRC_TARGET_DIR)/product/sdk_base.mk)
 
+# AOSP emulator images build the AOSP messaging app.
+# Google API images override with the Google API app.
+# See vendor/google/products/sdk_google_phone_*.mk
+PRODUCT_PACKAGES += \
+    messaging
+
 # Overrides
 PRODUCT_BRAND := Android
 PRODUCT_NAME := sdk_phone_mips
diff --git a/target/product/sdk_phone_mips64.mk b/target/product/sdk_phone_mips64.mk
index 8ddcb58..e45d71b 100644
--- a/target/product/sdk_phone_mips64.mk
+++ b/target/product/sdk_phone_mips64.mk
@@ -22,6 +22,12 @@
 $(call inherit-product, $(SRC_TARGET_DIR)/product/core_64_bit.mk)
 $(call inherit-product, $(SRC_TARGET_DIR)/product/sdk_base.mk)
 
+# AOSP emulator images build the AOSP messaging app.
+# Google API images override with the Google API app.
+# See vendor/google/products/sdk_google_phone_*.mk
+PRODUCT_PACKAGES += \
+    messaging
+
 # Overrides
 PRODUCT_BRAND := Android
 PRODUCT_NAME := sdk_phone_mips64
diff --git a/target/product/sdk_phone_x86.mk b/target/product/sdk_phone_x86.mk
index a58d26f..01c2e83 100644
--- a/target/product/sdk_phone_x86.mk
+++ b/target/product/sdk_phone_x86.mk
@@ -21,6 +21,12 @@
 
 $(call inherit-product, $(SRC_TARGET_DIR)/product/sdk_base.mk)
 
+# AOSP emulator images build the AOSP messaging app.
+# Google API images override with the Google API app.
+# See vendor/google/products/sdk_google_phone_*.mk
+PRODUCT_PACKAGES += \
+    messaging
+
 # Overrides
 PRODUCT_BRAND := Android
 PRODUCT_NAME := sdk_phone_x86
diff --git a/target/product/sdk_phone_x86_64.mk b/target/product/sdk_phone_x86_64.mk
index c39b274..c3bc5e9 100644
--- a/target/product/sdk_phone_x86_64.mk
+++ b/target/product/sdk_phone_x86_64.mk
@@ -22,6 +22,12 @@
 $(call inherit-product, $(SRC_TARGET_DIR)/product/core_64_bit.mk)
 $(call inherit-product, $(SRC_TARGET_DIR)/product/sdk_base.mk)
 
+# AOSP emulator images build the AOSP messaging app.
+# Google API images override with the Google API app.
+# See vendor/google/products/sdk_google_phone_*.mk
+PRODUCT_PACKAGES += \
+    messaging
+
 # Overrides
 PRODUCT_BRAND := Android
 PRODUCT_NAME := sdk_phone_x86_64
diff --git a/target/product/telephony.mk b/target/product/telephony.mk
index 919d024..e840ba1 100644
--- a/target/product/telephony.mk
+++ b/target/product/telephony.mk
@@ -21,6 +21,8 @@
     CarrierConfig \
     Dialer \
     CallLogBackup \
+    CellBroadcastReceiver \
+    EmergencyInfo \
     rild
 
 PRODUCT_COPY_FILES := \
diff --git a/tools/droiddoc/templates-sdk/assets/css/default.css b/tools/droiddoc/templates-sdk/assets/css/default.css
index d493566..ccaa007 100644
--- a/tools/droiddoc/templates-sdk/assets/css/default.css
+++ b/tools/droiddoc/templates-sdk/assets/css/default.css
@@ -8497,12 +8497,12 @@
 $spritesheet: width height image $spritesheet-sprites;
 */
 .dac-sprite, #tb li:before, #qv li:before {
-  background-image: url(/assets/images/sprite.png);
+  background-image: url(../../assets/images/sprite.png);
   display: inline-block;
   vertical-align: middle; }
   @media screen and (min-device-pixel-ratio: 1.5) {
     .dac-sprite, #tb li:before, #qv li:before {
-      background-image: url(/assets/images/sprite-2x.png);
+      background-image: url(../../assets/images/sprite-2x.png);
       background-size: 50% 50%; } }
 
 .dac-sprite.dac-auto-chevron {
diff --git a/tools/droiddoc/templates-sdk/components/masthead.cs b/tools/droiddoc/templates-sdk/components/masthead.cs
index 838ddbe..cc00baa 100644
--- a/tools/droiddoc/templates-sdk/components/masthead.cs
+++ b/tools/droiddoc/templates-sdk/components/masthead.cs
@@ -80,7 +80,7 @@
         <?cs call:header_search_widget() ?>
         <?cs /if ?>
 
-        <?cs if:ndk ?><a class="dac-header-console-btn" href="http://developer.android.com">
+        <?cs if:ndk ?><a class="dac-header-console-btn" href="//developer.android.com">
           <span class="dac-visible-desktop-inline">Back to Android Developers</span>
         </a><?cs else ?><a class="dac-header-console-btn" href="https://play.google.com/apps/publish/">
           <span class="dac-sprite dac-google-play"></span>
@@ -140,7 +140,7 @@
   </nav>
   <!-- end NDK navigation-->
   <?cs else ?>
-  <!-- Navigation-->
+  <!-- Standard DAC Navigation-->
   <nav class="dac-nav">
     <div class="dac-nav-dimmer" data-dac-toggle-nav></div>
 
@@ -151,8 +151,32 @@
                srcset="<?cs var:toroot ?>assets/images/android_logo@2x.png 2x"
                width="32" height="36" alt="Android" /> Developers
         </a>
+      </li><?cs
+      #
+      # For the reference only docs, include just one tab
+      #
+      ?><?cs if:referenceonly ?>
+      <li class="dac-nav-item develop">
+        <a class="dac-nav-link has-subnav" href="<?cs var:toroot ?>reference/packages.html" zh-tw-lang="參考資源"
+        zh-cn-lang="参考" ru-lang="Справочник" ko-lang="참조문서" ja-lang="リファレンス"
+        es-lang="Referencia">API Reference</a>
+      <div class="dac-nav-secondary develop">
+        <h1 style="font-size: 20px; line-height: 24px; margin: 20px; color:#444"
+          ><?cs
+          if:sdk.preview
+            ?>Android <?cs var:sdk.codename ?>
+              Preview <?cs var:sdk.preview.version ?><?cs
+          else
+            ?>Android <?cs var:sdk.version ?>
+              r<?cs var:sdk.rel.id ?><?cs
+          /if ?></h1>
+      </div>
       </li>
-      <li class="dac-nav-item home">
+      <?cs else ?><?cs
+      #
+      # End reference only docs, now the online DAC tabs...
+      #
+      ?><li class="dac-nav-item home">
         <a class="dac-nav-link dac-visible-mobile-block" href="<?cs var:toroot ?>index.html">Home</a>
         <ul class="dac-nav-secondary about">
           <li class="dac-nav-item about">
@@ -262,7 +286,12 @@
             <a class="dac-nav-link" href="<?cs var:toroot ?>distribute/stories/index.html">Stories</a>
           </li>
         </ul>
-      </li>
+      </li><?cs
+      /if ?><?cs
+      #
+      # End if/else reference only docs
+      #
+      ?>
     </ul>
   </nav>
   <!-- end navigation-->
@@ -281,7 +310,7 @@
     <div style="height:20px"><!-- spacer to bump header down --></div>
     <div id="butterbar-wrapper">
       <div id="butterbar">
-        <a href="http://googleblog.blogspot.com/" id="butterbar-message">
+        <a href="//googleblog.blogspot.com/" id="butterbar-message">
           The Android 5.0 SDK will be available on October 17th!
         </a>
       </div>
diff --git a/tools/droiddoc/templates-sdk/customizations.cs b/tools/droiddoc/templates-sdk/customizations.cs
index aaef8ed..d52f0e4 100644
--- a/tools/droiddoc/templates-sdk/customizations.cs
+++ b/tools/droiddoc/templates-sdk/customizations.cs
@@ -585,7 +585,7 @@
 <?cs # appears at the bottom of every page ?><?cs
 def:custom_cc_copyright() ?>
   Except as noted, this content is
-  licensed under <a href="http://creativecommons.org/licenses/by/2.5/">
+  licensed under <a href="//creativecommons.org/licenses/by/2.5/">
   Creative Commons Attribution 2.5</a>. For details and
   restrictions, see the <a href="<?cs var:toroot ?>license.html">Content
   License</a>.<?cs
@@ -594,7 +594,7 @@
 <?cs
 def:custom_copyright() ?>
   Except as noted, this content is licensed under <a
-  href="http://www.apache.org/licenses/LICENSE-2.0">Apache 2.0</a>.
+  href="//www.apache.org/licenses/LICENSE-2.0">Apache 2.0</a>.
   For details and restrictions, see the <a href="<?cs var:toroot ?>license.html">
   Content License</a>.<?cs
 /def ?>
diff --git a/tools/droiddoc/templates-sdk/designpage.cs b/tools/droiddoc/templates-sdk/designpage.cs
index b945a1c..4a523ce 100644
--- a/tools/droiddoc/templates-sdk/designpage.cs
+++ b/tools/droiddoc/templates-sdk/designpage.cs
@@ -7,7 +7,7 @@
       Android Design<?cs if:page.title ?> - <?cs var:page.title ?><?cs /if ?>
     </title>
     <link rel="shortcut icon" type="image/x-icon" href="/favicon.ico">
-    <link rel="stylesheet" href="http://fonts.googleapis.com/css?family=Roboto:regular,medium,thin,italic,mediumitalic">
+    <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:regular,medium,thin,italic,mediumitalic">
     <link rel="stylesheet" href="<?cs var:toroot ?>assets/yui-3.3.0-reset-min.css">
     <link rel="stylesheet" href="<?cs var:toroot ?>assets/design/default.css">
     <script src="<?cs var:toroot ?>assets/jquery-1.6.2.min.js"></script>
@@ -70,16 +70,16 @@
 
         <p id="copyright">
           Except as noted, this content is licensed under
-          <a href="http://creativecommons.org/licenses/by/2.5/">
+          <a href="//creativecommons.org/licenses/by/2.5/">
           Creative Commons Attribution 2.5</a>.<br>
           For details and restrictions, see the
-          <a href="http://developer.android.com/license.html">Content License</a>.
+          <a href="//developer.android.com/license.html">Content License</a>.
         </p>
 
         <p>
-          <a href="http://www.android.com/terms.html">Site Terms of Service</a> &ndash;
-          <a href="http://www.android.com/privacy.html">Privacy Policy</a> &ndash;
-          <a href="http://www.android.com/branding.html">Brand Guidelines</a>
+          <a href="//www.android.com/terms.html">Site Terms of Service</a> &ndash;
+          <a href="//www.android.com/privacy.html">Privacy Policy</a> &ndash;
+          <a href="//www.android.com/branding.html">Brand Guidelines</a>
         </p>
 
       </div>
diff --git a/tools/droiddoc/templates-sdk/footer.cs b/tools/droiddoc/templates-sdk/footer.cs
index 1ffee63..a0900f2 100644
--- a/tools/droiddoc/templates-sdk/footer.cs
+++ b/tools/droiddoc/templates-sdk/footer.cs
@@ -7,7 +7,7 @@
       </div>
       <div class="col-1of2 dac-footer-reachout">
         <div class="dac-footer-contact">
-          <a class="dac-footer-contact-link" href="http://android-developers.blogspot.com/">Blog</a>
+          <a class="dac-footer-contact-link" href="//android-developers.blogspot.com/">Blog</a>
           <a class="dac-footer-contact-link" href="/support.html">Support</a>
         </div>
         <div class="dac-footer-social">
diff --git a/tools/droiddoc/templates-sdk/head_tag.cs b/tools/droiddoc/templates-sdk/head_tag.cs
index babb3c7..c668203 100644
--- a/tools/droiddoc/templates-sdk/head_tag.cs
+++ b/tools/droiddoc/templates-sdk/head_tag.cs
@@ -30,15 +30,15 @@
 <!-- STYLESHEETS -->
 <link rel="stylesheet"
 href="<?cs
-if:android.whichdoc != 'online' ?>http:<?cs
+if:android.whichdoc != 'online' ?>https:<?cs
 /if ?>//fonts.googleapis.com/css?family=Roboto+Condensed">
 <link rel="stylesheet" href="<?cs
-if:android.whichdoc != 'online' ?>http:<?cs
+if:android.whichdoc != 'online' ?>https:<?cs
 /if ?>//fonts.googleapis.com/css?family=Roboto:light,regular,medium,thin,italic,mediumitalic,bold"
   title="roboto">
 <?cs 
   if:ndk ?><link rel="stylesheet" href="<?cs
-  if:android.whichdoc != 'online' ?>http:<?cs
+  if:android.whichdoc != 'online' ?>https:<?cs
   /if ?>//fonts.googleapis.com/css?family=Roboto+Mono:400,500,700" title="roboto-mono" type="text/css"><?cs
 /if ?>
 <link href="<?cs var:toroot ?>assets/css/default.css?v=7" rel="stylesheet" type="text/css">
@@ -50,7 +50,7 @@
 <?cs /if ?>
 
 <!-- JAVASCRIPT -->
-<script src="<?cs if:android.whichdoc != 'online' ?>http:<?cs /if ?>//www.google.com/jsapi" type="text/javascript"></script>
+<script src="<?cs if:android.whichdoc != 'online' ?>https:<?cs /if ?>//www.google.com/jsapi" type="text/javascript"></script>
 <?cs
 if:devsite
   ?><script src="<?cs var:toroot ?>_static/js/android_3p-bundle.js" type="text/javascript"></script><?cs
diff --git a/tools/droiddoc/templates-sdk/macros_override.cs b/tools/droiddoc/templates-sdk/macros_override.cs
index 0a94598..9d146b1 100644
--- a/tools/droiddoc/templates-sdk/macros_override.cs
+++ b/tools/droiddoc/templates-sdk/macros_override.cs
@@ -33,4 +33,12 @@
       <?cs set:count = count + #1 ?>
     <?cs /each ?>
   </table>
-<?cs /def ?>
\ No newline at end of file
+<?cs /def ?>
+
+<?cs def:doc_root_override() ?><?cs
+  if:referenceonly
+    ?>https://developer.android.com/<?cs
+  else ?><?cs
+    var:toroot ?><?cs
+  /if ?><?cs
+/def ?>
\ No newline at end of file
diff --git a/tools/droiddoc/templates-sdk/sdkpage.cs b/tools/droiddoc/templates-sdk/sdkpage.cs
index 47c2992..401f183 100644
--- a/tools/droiddoc/templates-sdk/sdkpage.cs
+++ b/tools/droiddoc/templates-sdk/sdkpage.cs
@@ -86,7 +86,7 @@
     <td>Windows 32-bit</td>
     <td>
   <a onClick="return onDownload(this)"
-     href="http://dl.google.com/android/ndk/<?cs var:ndk.win32_download ?>"><?cs var:ndk.win32_download ?></a>
+     href="//dl.google.com/android/ndk/<?cs var:ndk.win32_download ?>"><?cs var:ndk.win32_download ?></a>
     </td>
     <td><?cs var:ndk.win32_bytes ?></td>
     <td><?cs var:ndk.win32_checksum ?></td>
@@ -94,7 +94,7 @@
  <!-- <tr>
    <td>
   <a onClick="return onDownload(this)"
-     href="http://dl.google.com/android/ndk/<?cs var:ndk.win32.legacy_download ?>"><?cs var:ndk.win32.legacy_download ?></a>
+     href="//dl.google.com/android/ndk/<?cs var:ndk.win32.legacy_download ?>"><?cs var:ndk.win32.legacy_download ?></a>
     </td>
     <td><?cs var:ndk.win32.legacy_bytes ?></td>
     <td><?cs var:ndk.win32.legacy_checksum ?></td>
@@ -103,7 +103,7 @@
     <td>Windows 64-bit</td>
     <td>
   <a onClick="return onDownload(this)"
-     href="http://dl.google.com/android/ndk/<?cs var:ndk.win64_download ?>"><?cs var:ndk.win64_download ?></a>
+     href="//dl.google.com/android/ndk/<?cs var:ndk.win64_download ?>"><?cs var:ndk.win64_download ?></a>
     </td>
     <td><?cs var:ndk.win64_bytes ?></td>
     <td><?cs var:ndk.win64_checksum ?></td>
@@ -111,7 +111,7 @@
  <!--  <tr>
     <td>
   <a onClick="return onDownload(this)"
-     href="http://dl.google.com/android/ndk/<?cs var:ndk.win64.legacy_download ?>"><?cs var:ndk.win64.legacy_download ?></a>
+     href="//dl.google.com/android/ndk/<?cs var:ndk.win64.legacy_download ?>"><?cs var:ndk.win64.legacy_download ?></a>
     </td>
     <td><?cs var:ndk.win64.legacy_bytes ?></td>
     <td><?cs var:ndk.win64.legacy_checksum ?></td>
@@ -121,7 +121,7 @@
     <td>Mac OS X 32-bit</td>
     <td>
   <a onClick="return onDownload(this)"
-     href="http://dl.google.com/android/ndk/<?cs var:ndk.mac32_download ?>"><?cs var:ndk.mac32_download ?></a>
+     href="//dl.google.com/android/ndk/<?cs var:ndk.mac32_download ?>"><?cs var:ndk.mac32_download ?></a>
     </td>
     <td><?cs var:ndk.mac32_bytes ?></td>
     <td><?cs var:ndk.mac32_checksum ?></td>
@@ -130,7 +130,7 @@
   <tr>
     <td>
   <a onClick="return onDownload(this)"
-     href="http://dl.google.com/android/ndk/<?cs var:ndk.mac32.legacy_download ?>"><?cs var:ndk.mac32.legacy_download ?></a>
+     href="//dl.google.com/android/ndk/<?cs var:ndk.mac32.legacy_download ?>"><?cs var:ndk.mac32.legacy_download ?></a>
     </td>
     <td><?cs var:ndk.mac32.legacy_bytes ?></td>
     <td><?cs var:ndk.mac32.legacy_checksum ?></td>
@@ -138,7 +138,7 @@
     <td>Mac OS X 64-bit</td>
     <td>
   <a onClick="return onDownload(this)"
-     href="http://dl.google.com/android/ndk/<?cs var:ndk.mac64_download ?>"><?cs var:ndk.mac64_download ?></a>
+     href="//dl.google.com/android/ndk/<?cs var:ndk.mac64_download ?>"><?cs var:ndk.mac64_download ?></a>
     </td>
     <td><?cs var:ndk.mac64_bytes ?></td>
     <td><?cs var:ndk.mac64_checksum ?></td>
@@ -146,7 +146,7 @@
  <!--  <tr>
     <td>
   <a onClick="return onDownload(this)"
-     href="http://dl.google.com/android/ndk/<?cs var:ndk.mac64.legacy_download ?>"><?cs var:ndk.mac64.legacy_download ?></a>
+     href="//dl.google.com/android/ndk/<?cs var:ndk.mac64.legacy_download ?>"><?cs var:ndk.mac64.legacy_download ?></a>
     </td>
     <td><?cs var:ndk.mac64.legacy_bytes ?></td>
     <td><?cs var:ndk.mac64.legacy_checksum ?></td>
@@ -155,7 +155,7 @@
     <td>Linux 32-bit (x86)</td>
     <td>
   <a onClick="return onDownload(this)"
-     href="http://dl.google.com/android/ndk/<?cs var:ndk.linux32_download ?>"><?cs var:ndk.linux32_download ?></a>
+     href="//dl.google.com/android/ndk/<?cs var:ndk.linux32_download ?>"><?cs var:ndk.linux32_download ?></a>
     </td>
     <td><?cs var:ndk.linux32_bytes ?></td>
     <td><?cs var:ndk.linux32_checksum ?></td>
@@ -163,7 +163,7 @@
  <!--  <tr>
     <td>
   <a onClick="return onDownload(this)"
-     href="http://dl.google.com/android/ndk/<?cs var:ndk.linux32.legacy_download ?>"><?cs var:ndk.linux32.legacy_download ?></a>
+     href="//dl.google.com/android/ndk/<?cs var:ndk.linux32.legacy_download ?>"><?cs var:ndk.linux32.legacy_download ?></a>
     </td>
     <td><?cs var:ndk.linux32.legacy_bytes ?></td>
     <td><?cs var:ndk.linux32.legacy_checksum ?></td>
@@ -172,7 +172,7 @@
     <td>Linux 64-bit (x86)</td>
     <td>
   <a onClick="return onDownload(this)"
-     href="http://dl.google.com/android/ndk/<?cs var:ndk.linux64_download ?>"><?cs var:ndk.linux64_download ?></a>
+     href="//dl.google.com/android/ndk/<?cs var:ndk.linux64_download ?>"><?cs var:ndk.linux64_download ?></a>
     </td>
     <td><?cs var:ndk.linux64_bytes ?></td>
     <td><?cs var:ndk.linux64_checksum ?></td>
@@ -180,7 +180,7 @@
   <!--  <tr>
     <td>
   <a onClick="return onDownload(this)"
-     href="http://dl.google.com/android/ndk/<?cs var:ndk.linux64.legacy_download ?>"><?cs var:ndk.linux64.legacy_download ?></a>
+     href="//dl.google.com/android/ndk/<?cs var:ndk.linux64.legacy_download ?>"><?cs var:ndk.linux64.legacy_download ?></a>
     </td>
     <td><?cs var:ndk.linux64.legacy_bytes ?></td>
     <td><?cs var:ndk.linux64.legacy_checksum ?></td>
@@ -286,7 +286,7 @@
   <tr>
     <td rowspan="2">Windows</td>
     <td>
-  <a onclick="return onDownload(this)" id="win-tools" href="http://dl.google.com/android/<?cs
+  <a onclick="return onDownload(this)" id="win-tools" href="//dl.google.com/android/<?cs
 var:sdk.win_installer
 ?>"><?cs var:sdk.win_installer ?></a> (Recommended)
     </td>
@@ -296,7 +296,7 @@
   <tr>
     <!-- blank TD from Windows rowspan -->
     <td>
-  <a onclick="return onDownload(this)" href="http://dl.google.com/android/<?cs var:sdk.win_download
+  <a onclick="return onDownload(this)" href="//dl.google.com/android/<?cs var:sdk.win_download
 ?>"><?cs var:sdk.win_download ?></a>
     </td>
     <td><?cs var:sdk.win_bytes ?> bytes</td>
@@ -305,7 +305,7 @@
   <tr>
     <td><nobr>Mac OS X</nobr></td>
     <td>
-  <a onclick="return onDownload(this)" id="mac-tools" href="http://dl.google.com/android/<?cs
+  <a onclick="return onDownload(this)" id="mac-tools" href="//dl.google.com/android/<?cs
 var:sdk.mac_download
 ?>"><?cs var:sdk.mac_download ?></a>
     </td>
@@ -315,7 +315,7 @@
   <tr>
     <td>Linux</td>
     <td>
-  <a onclick="return onDownload(this)" id="linux-tools" href="http://dl.google.com/android/<?cs
+  <a onclick="return onDownload(this)" id="linux-tools" href="//dl.google.com/android/<?cs
 var:sdk.linux_download
 ?>"><?cs var:sdk.linux_download ?></a>
     </td>
diff --git a/tools/releasetools/build_image.py b/tools/releasetools/build_image.py
index e248860..f35369f 100755
--- a/tools/releasetools/build_image.py
+++ b/tools/releasetools/build_image.py
@@ -292,6 +292,18 @@
   shutil.rmtree(tempdir_name, ignore_errors=True)
   return True
 
+def ConvertBlockMapToBaseFs(block_map_file):
+  fd, base_fs_file = tempfile.mkstemp(prefix="script_gen_",
+                                      suffix=".base_fs")
+  os.close(fd)
+
+  convert_command = ["blk_alloc_to_base_fs", block_map_file, base_fs_file]
+  (_, exit_code) = RunCommand(convert_command)
+  if exit_code != 0:
+    os.remove(base_fs_file)
+    return None
+  return base_fs_file
+
 def BuildImage(in_dir, prop_dict, out_file, target_out=None):
   """Build an image to out_file from in_dir with property prop_dict.
 
@@ -308,6 +320,7 @@
   # /system and the ramdisk, and can be mounted at the root of the file system.
   origin_in = in_dir
   fs_config = prop_dict.get("fs_config")
+  base_fs_file = None
   if (prop_dict.get("system_root_image") == "true"
       and prop_dict["mount_point"] == "system"):
     in_dir = tempfile.mkdtemp()
@@ -367,6 +380,11 @@
       build_command.extend(["-D", target_out])
     if "block_list" in prop_dict:
       build_command.extend(["-B", prop_dict["block_list"]])
+    if "base_fs_file" in prop_dict:
+      base_fs_file = ConvertBlockMapToBaseFs(prop_dict["base_fs_file"])
+      if base_fs_file is None:
+        return False
+      build_command.extend(["-d", base_fs_file])
     build_command.extend(["-L", prop_dict["mount_point"]])
     if "selinux_fc" in prop_dict:
       build_command.append(prop_dict["selinux_fc"])
@@ -421,6 +439,8 @@
       shutil.rmtree(in_dir, ignore_errors=True)
       if fs_config:
         os.remove(fs_config)
+    if base_fs_file is not None:
+      os.remove(base_fs_file)
   if exit_code != 0:
     return False
 
@@ -525,6 +545,7 @@
     copy_prop("has_ext4_reserved_blocks", "has_ext4_reserved_blocks")
     copy_prop("system_squashfs_compressor", "squashfs_compressor")
     copy_prop("system_squashfs_compressor_opt", "squashfs_compressor_opt")
+    copy_prop("system_base_fs_file", "base_fs_file")
   elif mount_point == "data":
     # Copy the generic fs type first, override with specific one if available.
     copy_prop("fs_type", "fs_type")
@@ -539,6 +560,9 @@
     copy_prop("vendor_journal_size", "journal_size")
     copy_prop("vendor_verity_block_device", "verity_block_device")
     copy_prop("has_ext4_reserved_blocks", "has_ext4_reserved_blocks")
+    copy_prop("vendor_squashfs_compressor", "squashfs_compressor")
+    copy_prop("vendor_squashfs_compressor_opt", "squashfs_compressor_opt")
+    copy_prop("vendor_base_fs_file", "base_fs_file")
   elif mount_point == "oem":
     copy_prop("fs_type", "fs_type")
     copy_prop("oem_size", "partition_size")
diff --git a/tools/zipalign/Android.mk b/tools/zipalign/Android.mk
index 0775d43..8c0240a 100644
--- a/tools/zipalign/Android.mk
+++ b/tools/zipalign/Android.mk
@@ -35,6 +35,4 @@
 LOCAL_MODULE := zipalign
 LOCAL_MODULE_HOST_OS := darwin linux windows
 
-LOCAL_CFLAGS := -Werror
-
 include $(BUILD_HOST_EXECUTABLE)
diff --git a/tools/zipalign/ZipEntry.cpp b/tools/zipalign/ZipEntry.cpp
index 1031dbe..2f33e23 100644
--- a/tools/zipalign/ZipEntry.cpp
+++ b/tools/zipalign/ZipEntry.cpp
@@ -142,8 +142,7 @@
  *
  * Initializes the CDE and the LFH.
  */
-status_t ZipEntry::initFromExternal(const ZipFile*,
-    const ZipEntry* pEntry)
+status_t ZipEntry::initFromExternal(const ZipEntry* pEntry)
 {
     /*
      * Copy everything in the CDE over, then fix up the hairy bits.
@@ -694,3 +693,4 @@
     if (mFileComment != NULL)
         ALOGD("  comment: '%s'\n", mFileComment);
 }
+
diff --git a/tools/zipalign/ZipEntry.h b/tools/zipalign/ZipEntry.h
index eb68afe..431b6db 100644
--- a/tools/zipalign/ZipEntry.h
+++ b/tools/zipalign/ZipEntry.h
@@ -167,7 +167,7 @@
      * Initialize the structure with the contents of a ZipEntry from
      * another file.
      */
-    status_t initFromExternal(const ZipFile* pZipFile, const ZipEntry* pEntry);
+    status_t initFromExternal(const ZipEntry* pEntry);
 
     /*
      * Add some pad bytes to the LFH.  We do this by adding or resizing
diff --git a/tools/zipalign/ZipFile.cpp b/tools/zipalign/ZipFile.cpp
index 7c3ff37..4edf0aa 100644
--- a/tools/zipalign/ZipFile.cpp
+++ b/tools/zipalign/ZipFile.cpp
@@ -566,7 +566,7 @@
         goto bail;
     }
 
-    result = pEntry->initFromExternal(pSourceZip, pSourceEntry);
+    result = pEntry->initFromExternal(pSourceEntry);
     if (result != NO_ERROR)
         goto bail;
     if (padding != 0) {
@@ -673,7 +673,7 @@
         goto bail;
     }
 
-    result = pEntry->initFromExternal(pSourceZip, pSourceEntry);
+    result = pEntry->initFromExternal(pSourceEntry);
     if (result != NO_ERROR)
         goto bail;