diff --git a/Android.mk b/Android.mk
deleted file mode 100644
index 5053e7d..0000000
--- a/Android.mk
+++ /dev/null
@@ -1 +0,0 @@
-include $(call all-subdir-makefiles)
diff --git a/CleanSpec.mk b/CleanSpec.mk
index 8058d86..b32868e 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -522,6 +522,16 @@
 # Clean up aidegen
 $(call add-clean-step, rm -f $(HOST_OUT)/bin/aidegen)
 
+# Remove perfprofd
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/bin/perfprofd)
+
+# Remove incorrectly created directories in the source tree
+$(call add-clean-step, find system/app system/priv-app system/framework system_other -depth -type d -print0 | xargs -0 rmdir)
+$(call add-clean-step, rm -f .d)
+
+# Remove obsolete apps
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/*)
+
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
 # ************************************************
diff --git a/core/json.mk b/common/json.mk
similarity index 100%
rename from core/json.mk
rename to common/json.mk
diff --git a/core/Makefile b/core/Makefile
index c361ef4..c63e213 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -122,6 +122,33 @@
 endif
 
 # -----------------------------------------------------------------
+# generate preview API fingerprint
+api_fingerprint := $(call intermediates-dir-for,PACKAGING,api_fingerprint)/api_fingerprint.txt
+.KATI_READONLY := api_fingerprint
+
+ifeq (REL,$(PLATFORM_VERSION_CODENAME))
+  $(api_fingerprint):
+	echo REL >$@
+else ifneq ($(TARGET_BUILD_APPS),)
+  # TODO: use a prebuilt api_fingerprint.txt from prebuilts/sdk/current.txt once we have one
+  #$(eval $(call copy-one-file,prebuilts/sdk/current/api_fingerprint.txt,$(api_fingerprint)))
+  $(api_fingerprint):
+	echo $(PLATFORM_PREVIEW_SDK_VERSION) >$@
+else ifneq ($(TARGET_BUILD_PDK),)
+  $(eval $(call copy-one-file,$(_pdk_fusion_intermediates)/api_fingerprint.txt,$(api_fingerprint)))
+else
+  ifeq ($(HOST_OS),darwin)
+  $(api_fingerprint): PRIVATE_HASH := md5
+  else
+  $(api_fingerprint): PRIVATE_HASH := md5sum
+  endif
+  $(api_fingerprint): $(sort $(wildcard frameworks/base/api/*current.txt))
+	cat $^ | $(PRIVATE_HASH) | cut -d' ' -f1 >$@
+
+  $(call dist-for-goals,sdk,$(api_fingerprint))
+endif
+
+# -----------------------------------------------------------------
 # property_overrides_split_enabled
 property_overrides_split_enabled :=
 ifeq ($(BOARD_PROPERTY_OVERRIDES_SPLIT_ENABLED), true)
@@ -290,7 +317,7 @@
 # The string used to uniquely identify the combined build and product; used by the OTA server.
 ifeq (,$(strip $(BUILD_FINGERPRINT)))
   ifeq ($(strip $(HAS_BUILD_NUMBER)),false)
-    BF_BUILD_NUMBER := $(USER)$$($(DATE_FROM_FILE) +%m%d%H%M)
+    BF_BUILD_NUMBER := $(BUILD_USERNAME)$$($(DATE_FROM_FILE) +%m%d%H%M)
   else
     BF_BUILD_NUMBER := $(file <$(BUILD_NUMBER_FILE))
   endif
@@ -368,7 +395,7 @@
 else
 system_prop_file := $(wildcard $(TARGET_DEVICE_DIR)/system.prop)
 endif
-$(intermediate_system_build_prop): $(BUILDINFO_SH) $(BUILDINFO_COMMON_SH) $(INTERNAL_BUILD_ID_MAKEFILE) $(BUILD_SYSTEM)/version_defaults.mk $(system_prop_file) $(INSTALLED_ANDROID_INFO_TXT_TARGET)
+$(intermediate_system_build_prop): $(BUILDINFO_SH) $(BUILDINFO_COMMON_SH) $(INTERNAL_BUILD_ID_MAKEFILE) $(BUILD_SYSTEM)/version_defaults.mk $(system_prop_file) $(INSTALLED_ANDROID_INFO_TXT_TARGET) $(api_fingerprint)
 	@echo Target buildinfo: $@
 	@mkdir -p $(dir $@)
 	$(hide) echo > $@
@@ -393,6 +420,8 @@
 	        BUILD_ID="$(BUILD_ID)" \
 	        BUILD_DISPLAY_ID="$(BUILD_DISPLAY_ID)" \
 	        DATE="$(DATE_FROM_FILE)" \
+	        BUILD_USERNAME="$(BUILD_USERNAME)" \
+	        BUILD_HOSTNAME="$(BUILD_HOSTNAME)" \
 	        BUILD_NUMBER="$(BUILD_NUMBER_FROM_FILE)" \
 	        BOARD_BUILD_SYSTEM_ROOT_IMAGE="$(BOARD_BUILD_SYSTEM_ROOT_IMAGE)" \
 	        AB_OTA_UPDATER="$(AB_OTA_UPDATER)" \
@@ -401,6 +430,7 @@
 	        PLATFORM_BASE_OS="$(PLATFORM_BASE_OS)" \
 	        PLATFORM_SDK_VERSION="$(PLATFORM_SDK_VERSION)" \
 	        PLATFORM_PREVIEW_SDK_VERSION="$(PLATFORM_PREVIEW_SDK_VERSION)" \
+	        PLATFORM_PREVIEW_SDK_FINGERPRINT="$$(cat $(api_fingerprint))" \
 	        PLATFORM_VERSION_CODENAME="$(PLATFORM_VERSION_CODENAME)" \
 	        PLATFORM_VERSION_ALL_CODENAMES="$(PLATFORM_VERSION_ALL_CODENAMES)" \
 	        PLATFORM_MIN_SUPPORTED_TARGET_SDK_VERSION="$(PLATFORM_MIN_SUPPORTED_TARGET_SDK_VERSION)" \
@@ -1564,43 +1594,74 @@
 RECOVERY_ERROR_TEXT_FILE := $(dir $(RECOVERY_INSTALLING_TEXT_FILE))/error_text.png
 RECOVERY_NO_COMMAND_TEXT_FILE := $(dir $(RECOVERY_INSTALLING_TEXT_FILE))/no_command_text.png
 
-generated_recovery_background_text_files := \
+RECOVERY_CANCEL_WIPE_DATA_TEXT_FILE := $(dir $(RECOVERY_INSTALLING_TEXT_FILE))/cancel_wipe_data_text.png
+RECOVERY_FACTORY_DATA_RESET_TEXT_FILE := $(dir $(RECOVERY_INSTALLING_TEXT_FILE))/factory_data_reset_text.png
+RECOVERY_TRY_AGAIN_TEXT_FILE := $(dir $(RECOVERY_INSTALLING_TEXT_FILE))/try_again_text.png
+RECOVERY_WIPE_DATA_CONFIRMATION_TEXT_FILE := $(dir $(RECOVERY_INSTALLING_TEXT_FILE))/wipe_data_confirmation_text.png
+RECOVERY_WIPE_DATA_MENU_HEADER_TEXT_FILE := $(dir $(RECOVERY_INSTALLING_TEXT_FILE))/wipe_data_menu_header_text.png
+
+generated_recovery_text_files := \
   $(RECOVERY_INSTALLING_TEXT_FILE) \
   $(RECOVERY_INSTALLING_SECURITY_TEXT_FILE) \
   $(RECOVERY_ERASING_TEXT_FILE) \
   $(RECOVERY_ERROR_TEXT_FILE) \
-  $(RECOVERY_NO_COMMAND_TEXT_FILE)
+  $(RECOVERY_NO_COMMAND_TEXT_FILE) \
+  $(RECOVERY_CANCEL_WIPE_DATA_TEXT_FILE) \
+  $(RECOVERY_FACTORY_DATA_RESET_TEXT_FILE) \
+  $(RECOVERY_TRY_AGAIN_TEXT_FILE) \
+  $(RECOVERY_WIPE_DATA_CONFIRMATION_TEXT_FILE) \
+  $(RECOVERY_WIPE_DATA_MENU_HEADER_TEXT_FILE)
 
 resource_dir := $(call include-path-for, recovery)/tools/recovery_l10n/res/
 image_generator_jar := $(HOST_OUT_JAVA_LIBRARIES)/RecoveryImageGenerator.jar
+zopflipng := $(HOST_OUT_EXECUTABLES)/zopflipng
 $(RECOVERY_INSTALLING_TEXT_FILE): PRIVATE_SOURCE_FONTS := $(recovery_noto-fonts_dep) $(recovery_roboto-fonts_dep)
 $(RECOVERY_INSTALLING_TEXT_FILE): PRIVATE_RECOVERY_FONT_FILES_DIR := $(call intermediates-dir-for,PACKAGING,recovery_font_files)
 $(RECOVERY_INSTALLING_TEXT_FILE): PRIVATE_RESOURCE_DIR := $(resource_dir)
 $(RECOVERY_INSTALLING_TEXT_FILE): PRIVATE_IMAGE_GENERATOR_JAR := $(image_generator_jar)
+$(RECOVERY_INSTALLING_TEXT_FILE): PRIVATE_ZOPFLIPNG := $(zopflipng)
 $(RECOVERY_INSTALLING_TEXT_FILE): PRIVATE_RECOVERY_IMAGE_WIDTH := $(recovery_image_width)
-$(RECOVERY_INSTALLING_TEXT_FILE): PRIVATE_RECOVERY_TEXT_LIST := recovery_installing recovery_installing_security recovery_erasing recovery_error recovery_no_command
-$(RECOVERY_INSTALLING_TEXT_FILE): .KATI_IMPLICIT_OUTPUTS := $(RECOVERY_INSTALLING_SECURITY_TEXT_FILE) $(RECOVERY_ERASING_TEXT_FILE) $(RECOVERY_ERROR_TEXT_FILE) $(RECOVERY_NO_COMMAND_TEXT_FILE)
-$(RECOVERY_INSTALLING_TEXT_FILE): $(image_generator_jar) $(resource_dir) $(recovery_noto-fonts_dep) $(recovery_roboto-fonts_dep)
+$(RECOVERY_INSTALLING_TEXT_FILE): PRIVATE_RECOVERY_BACKGROUND_TEXT_LIST := \
+  recovery_installing \
+  recovery_installing_security \
+  recovery_erasing \
+  recovery_error \
+  recovery_no_command
+$(RECOVERY_INSTALLING_TEXT_FILE): PRIVATE_RECOVERY_WIPE_DATA_TEXT_LIST := \
+  recovery_cancel_wipe_data \
+  recovery_factory_data_reset \
+  recovery_try_again \
+  recovery_wipe_data_menu_header \
+  recovery_wipe_data_confirmation
+$(RECOVERY_INSTALLING_TEXT_FILE): .KATI_IMPLICIT_OUTPUTS := $(filter-out $(RECOVERY_INSTALLING_TEXT_FILE),$(generated_recovery_text_files))
+$(RECOVERY_INSTALLING_TEXT_FILE): $(image_generator_jar) $(resource_dir) $(recovery_noto-fonts_dep) $(recovery_roboto-fonts_dep) $(zopflipng)
 	# Prepares the font directory.
 	@rm -rf $(PRIVATE_RECOVERY_FONT_FILES_DIR)
 	@mkdir -p $(PRIVATE_RECOVERY_FONT_FILES_DIR)
-	$(foreach filename,$(PRIVATE_SOURCE_FONTS), cp $(filename) $(PRIVATE_RECOVERY_FONT_FILES_DIR);)
-
+	$(foreach filename,$(PRIVATE_SOURCE_FONTS), cp $(filename) $(PRIVATE_RECOVERY_FONT_FILES_DIR) &&) true
 	@rm -rf $(dir $@)
 	@mkdir -p $(dir $@)
-	$(foreach text_name,$(PRIVATE_RECOVERY_TEXT_LIST), \
+	$(foreach text_name,$(PRIVATE_RECOVERY_BACKGROUND_TEXT_LIST) $(PRIVATE_RECOVERY_WIPE_DATA_TEXT_LIST), \
+	  $(eval output_file := $(dir $@)/$(patsubst recovery_%,%_text.png,$(text_name))) \
+	  $(eval center_alignment := $(if $(filter $(text_name),$(PRIVATE_RECOVERY_BACKGROUND_TEXT_LIST)), --center_alignment)) \
 	  java -jar $(PRIVATE_IMAGE_GENERATOR_JAR) \
 	    --image_width $(PRIVATE_RECOVERY_IMAGE_WIDTH) \
 	    --text_name $(text_name) \
 	    --font_dir $(PRIVATE_RECOVERY_FONT_FILES_DIR) \
 	    --resource_dir $(PRIVATE_RESOURCE_DIR) \
-	    --output_file $(dir $@)/$(patsubst recovery_%,%_text.png,$(text_name));)
+	    --output_file $(output_file) $(center_alignment) && \
+	  $(PRIVATE_ZOPFLIPNG) -y --iterations=1 --filters=0 $(output_file) $(output_file) > /dev/null &&) true
 else
 RECOVERY_INSTALLING_TEXT_FILE :=
 RECOVERY_INSTALLING_SECURITY_TEXT_FILE :=
 RECOVERY_ERASING_TEXT_FILE :=
 RECOVERY_ERROR_TEXT_FILE :=
 RECOVERY_NO_COMMAND_TEXT_FILE :=
+RECOVERY_CANCEL_WIPE_DATA_TEXT_FILE :=
+RECOVERY_FACTORY_DATA_RESET_TEXT_FILE :=
+RECOVERY_TRY_AGAIN_TEXT_FILE :=
+RECOVERY_WIPE_DATA_CONFIRMATION_TEXT_FILE :=
+RECOVERY_WIPE_DATA_MENU_HEADER_TEXT_FILE :=
 endif # TARGET_RECOVERY_UI_SCREEN_WIDTH
 
 ifndef TARGET_PRIVATE_RES_DIRS
@@ -1608,7 +1669,7 @@
 endif
 recovery_resource_deps := $(shell find $(recovery_resources_common) \
   $(TARGET_PRIVATE_RES_DIRS) -type f)
-recovery_resource_deps += $(generated_recovery_background_text_files)
+recovery_resource_deps += $(generated_recovery_text_files)
 
 
 ifdef TARGET_RECOVERY_FSTAB
@@ -1637,9 +1698,12 @@
 #   d) We include the recovery DTBO image within recovery - not needing the resource file as we
 #      do bsdiff because boot and recovery will contain different number of entries
 #      (BOARD_INCLUDE_RECOVERY_DTBO = true).
+#   e) We include the recovery ACPIO image within recovery - not needing the resource file as we
+#      do bsdiff because boot and recovery will contain different number of entries
+#      (BOARD_INCLUDE_RECOVERY_ACPIO = true).
 
 ifeq (,$(filter true, $(BOARD_USES_FULL_RECOVERY_IMAGE) $(BOARD_USES_RECOVERY_AS_BOOT) \
-  $(BOARD_BUILD_SYSTEM_ROOT_IMAGE) $(BOARD_INCLUDE_RECOVERY_DTBO)))
+  $(BOARD_BUILD_SYSTEM_ROOT_IMAGE) $(BOARD_INCLUDE_RECOVERY_DTBO) $(BOARD_INCLUDE_RECOVERY_ACPIO)))
 # Named '.dat' so we don't attempt to use imgdiff for patching it.
 RECOVERY_RESOURCE_ZIP := $(TARGET_OUT)/etc/recovery-resource.dat
 else
@@ -1713,6 +1777,9 @@
 ifdef BOARD_INCLUDE_RECOVERY_DTBO
   INTERNAL_RECOVERYIMAGE_ARGS += --recovery_dtbo $(BOARD_PREBUILT_DTBOIMAGE)
 endif
+ifdef BOARD_INCLUDE_RECOVERY_ACPIO
+  INTERNAL_RECOVERYIMAGE_ARGS += --recovery_acpio $(BOARD_RECOVERY_ACPIO)
+endif
 
 # Keys authorized to sign OTA packages this build will accept.  The
 # build always uses dev-keys for this; release packaging tools will
@@ -1752,8 +1819,8 @@
   $(hide) mkdir -p $(TARGET_RECOVERY_ROOT_OUT)/res
   $(hide) rm -rf $(TARGET_RECOVERY_ROOT_OUT)/res/*
   $(hide) cp -rf $(recovery_resources_common)/* $(TARGET_RECOVERY_ROOT_OUT)/res
-  $(hide) $(foreach recovery_text_file,$(generated_recovery_background_text_files), \
-    cp -rf $(recovery_text_file) $(TARGET_RECOVERY_ROOT_OUT)/res/images/;)
+  $(hide) $(foreach recovery_text_file,$(generated_recovery_text_files), \
+    cp -rf $(recovery_text_file) $(TARGET_RECOVERY_ROOT_OUT)/res/images/ &&) true
   $(hide) cp -f $(recovery_font) $(TARGET_RECOVERY_ROOT_OUT)/res/images/font.png
   $(hide) $(foreach item,$(TARGET_PRIVATE_RES_DIRS), \
     cp -rf $(item) $(TARGET_RECOVERY_ROOT_OUT)/$(newline))
@@ -1799,6 +1866,9 @@
 ifdef BOARD_INCLUDE_RECOVERY_DTBO
 $(INSTALLED_BOOTIMAGE_TARGET): $(BOARD_PREBUILT_DTBOIMAGE)
 endif
+ifdef BOARD_INCLUDE_RECOVERY_ACPIO
+$(INSTALLED_BOOTIMAGE_TARGET): $(BOARD_RECOVERY_ACPIO)
+endif
 
 $(INSTALLED_BOOTIMAGE_TARGET): $(MKBOOTFS) $(MKBOOTIMG) $(MINIGZIP) \
 	    $(INTERNAL_ROOT_FILES) \
@@ -1819,6 +1889,9 @@
 ifdef BOARD_INCLUDE_RECOVERY_DTBO
 $(INSTALLED_RECOVERYIMAGE_TARGET): $(BOARD_PREBUILT_DTBOIMAGE)
 endif
+ifdef BOARD_INCLUDE_RECOVERY_ACPIO
+$(INSTALLED_RECOVERYIMAGE_TARGET): $(BOARD_RECOVERY_ACPIO)
+endif
 
 $(INSTALLED_RECOVERYIMAGE_TARGET): $(MKBOOTFS) $(MKBOOTIMG) $(MINIGZIP) \
 	    $(INTERNAL_ROOT_FILES) \
@@ -2029,7 +2102,7 @@
 ifneq ($(INSTALLED_BOOTIMAGE_TARGET),)
 ifneq ($(INSTALLED_RECOVERYIMAGE_TARGET),)
 ifneq ($(BOARD_USES_FULL_RECOVERY_IMAGE),true)
-ifneq (,$(filter true, $(BOARD_BUILD_SYSTEM_ROOT_IMAGE) $(BOARD_INCLUDE_RECOVERY_DTBO)))
+ifneq (,$(filter true, $(BOARD_BUILD_SYSTEM_ROOT_IMAGE) $(BOARD_INCLUDE_RECOVERY_DTBO) $(BOARD_INCLUDE_RECOVERY_ACPIO)))
 diff_tool := $(HOST_OUT_EXECUTABLES)/bsdiff
 else
 diff_tool := $(HOST_OUT_EXECUTABLES)/imgdiff
@@ -2116,9 +2189,9 @@
 ## Files under out dir will be rejected to prevent possible conflicts with other rules.
 ifneq (,$(BUILD_PLATFORM_ZIP))
 pdk_odex_javalibs := $(strip $(foreach m,$(DEXPREOPT.MODULES.JAVA_LIBRARIES),\
-  $(if $(filter $(DEXPREOPT.$(m).INSTALLED),$(ALL_DEFAULT_INSTALLED_MODULES)),$(m))))
+  $(if $(filter $(DEXPREOPT.$(m).INSTALLED_STRIPPED),$(ALL_DEFAULT_INSTALLED_MODULES)),$(m))))
 pdk_odex_apps := $(strip $(foreach m,$(DEXPREOPT.MODULES.APPS),\
-  $(if $(filter $(DEXPREOPT.$(m).INSTALLED),$(ALL_DEFAULT_INSTALLED_MODULES)),$(m))))
+  $(if $(filter $(DEXPREOPT.$(m).INSTALLED_STRIPPED),$(ALL_DEFAULT_INSTALLED_MODULES)),$(m))))
 pdk_classes_dex := $(strip \
   $(foreach m,$(pdk_odex_javalibs),$(call intermediates-dir-for,JAVA_LIBRARIES,$(m),,COMMON)/javalib.jar) \
   $(foreach m,$(pdk_odex_apps),$(call intermediates-dir-for,APPS,$(m))/package.dex.apk))
@@ -2157,7 +2230,7 @@
 $(INSTALLED_PLATFORM_ZIP) : $(SOONG_ZIP)
 # dependencies for the other partitions are defined below after their file lists
 # are known
-$(INSTALLED_PLATFORM_ZIP) : $(INTERNAL_SYSTEMIMAGE_FILES) $(pdk_classes_dex) $(pdk_odex_config_mk)
+$(INSTALLED_PLATFORM_ZIP) : $(INTERNAL_SYSTEMIMAGE_FILES) $(pdk_classes_dex) $(pdk_odex_config_mk) $(api_fingerprint)
 	$(call pretty,"Platform zip package: $(INSTALLED_PLATFORM_ZIP)")
 	rm -f $@ $@.lst
 	echo "-C $(PRODUCT_OUT)" >> $@.lst
@@ -2190,6 +2263,7 @@
 	@# Add dex-preopt files and config.
 	$(if $(PRIVATE_DEX_FILES),\
 	  echo "-C $(OUT_DIR) $(addprefix -f ,$(PRIVATE_DEX_FILES))") >> $@.lst
+	echo "-C $(dir $(api_fingerprint)) -f $(api_fingerprint)" >> $@.lst
 	touch $(PRODUCT_OUT)/pdk.mk
 	echo "-C $(PRODUCT_OUT) -f $(PRIVATE_ODEX_CONFIG) -f $(PRODUCT_OUT)/pdk.mk" >> $@.lst
 	$(SOONG_ZIP) --ignore_missing_files -o $@ @$@.lst
@@ -2404,6 +2478,9 @@
       $(ALL_PDK_FUSION_FILES)) \
     $(PDK_FUSION_SYMLINK_STAMP)
 
+# system_other dex files are installed as a side-effect of installing system image files
+INTERNAL_SYSTEMOTHERIMAGE_FILES += $(INTERNAL_SYSTEMIMAGE_FILES)
+
 INSTALLED_FILES_FILE_SYSTEMOTHER := $(PRODUCT_OUT)/installed-files-system-other.txt
 INSTALLED_FILES_JSON_SYSTEMOTHER := $(INSTALLED_FILES_FILE_SYSTEMOTHER:.txt=.json)
 $(INSTALLED_FILES_FILE_SYSTEMOTHER): .KATI_IMPLICIT_OUTPUTS := $(INSTALLED_FILES_JSON_SYSTEMOTHER)
@@ -3208,7 +3285,9 @@
   $(HOST_LIBRARY_PATH)/libpcre2$(HOST_SHLIB_SUFFIX) \
   $(HOST_LIBRARY_PATH)/libbrotli$(HOST_SHLIB_SUFFIX) \
   $(HOST_LIBRARY_PATH)/liblp$(HOST_SHLIB_SUFFIX) \
-  $(HOST_LIBRARY_PATH)/libext4_utils$(HOST_SHLIB_SUFFIX)
+  $(HOST_LIBRARY_PATH)/libext4_utils$(HOST_SHLIB_SUFFIX) \
+  $(HOST_LIBRARY_PATH)/libfec$(HOST_SHLIB_SUFFIX) \
+  $(HOST_LIBRARY_PATH)/libsquashfs_utils$(HOST_SHLIB_SUFFIX)
 
 
 .PHONY: otatools
@@ -3349,6 +3428,8 @@
   echo "lpmake=$(notdir $(LPMAKE))" >> $(1)
   $(if $(filter true,$(PRODUCT_BUILD_SUPER_PARTITION)), $(if $(BOARD_SUPER_PARTITION_SIZE), \
     echo "build_super_partition=true" >> $(1)))
+  $(if $(filter true,$(BOARD_BUILD_RETROFIT_DYNAMIC_PARTITIONS_OTA_PACKAGE)), \
+    echo "build_retrofit_dynamic_partitions_ota_package=true" >> $(1))
   echo "super_metadata_device=$(BOARD_SUPER_PARTITION_METADATA_DEVICE)" >> $(1)
   $(if $(BOARD_SUPER_PARTITION_BLOCK_DEVICES), \
     echo "super_block_devices=$(BOARD_SUPER_PARTITION_BLOCK_DEVICES)" >> $(1))
@@ -3385,6 +3466,7 @@
 	    $(INSTALLED_KERNEL_TARGET) \
 	    $(INSTALLED_2NDBOOTLOADER_TARGET) \
 	    $(BOARD_PREBUILT_DTBOIMAGE) \
+	    $(BOARD_RECOVERY_ACPIO) \
 	    $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_SYSTEM_BASE_FS_PATH) \
 	    $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_VENDOR_BASE_FS_PATH) \
 	    $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_PRODUCT_BASE_FS_PATH) \
@@ -3425,6 +3507,9 @@
 ifdef BOARD_INCLUDE_RECOVERY_DTBO
 	$(hide) cp $(BOARD_PREBUILT_DTBOIMAGE) $(zip_root)/$(PRIVATE_RECOVERY_OUT)/recovery_dtbo
 endif
+ifdef BOARD_INCLUDE_RECOVERY_ACPIO
+	$(hide) cp $(BOARD_RECOVERY_ACPIO) $(zip_root)/$(PRIVATE_RECOVERY_OUT)/recovery_acpio
+endif
 ifdef INTERNAL_KERNEL_CMDLINE
 	$(hide) echo "$(INTERNAL_KERNEL_CMDLINE)" > $(zip_root)/$(PRIVATE_RECOVERY_OUT)/cmdline
 endif
@@ -3528,6 +3613,9 @@
 ifdef BOARD_INCLUDE_RECOVERY_DTBO
 	$(hide) echo "include_recovery_dtbo=true" >> $(zip_root)/META/misc_info.txt
 endif
+ifdef BOARD_INCLUDE_RECOVERY_ACPIO
+	$(hide) echo "include_recovery_acpio=true" >> $(zip_root)/META/misc_info.txt
+endif
 ifdef BOARD_RECOVERYIMAGE_PARTITION_SIZE
 	$(hide) echo "recovery_size=$(BOARD_RECOVERYIMAGE_PARTITION_SIZE)" >> $(zip_root)/META/misc_info.txt
 endif
@@ -3727,12 +3815,16 @@
 endif
 ifneq ($(BOARD_SUPER_PARTITION_GROUPS),)
 	$(hide) echo "super_partition_groups=$(BOARD_SUPER_PARTITION_GROUPS)" > $(zip_root)/META/dynamic_partitions_info.txt
+	@# Remove 'vendor' from the group partition list if the image is not available. This should only
+	@# happen to AOSP targets built without vendor.img. We can't remove the partition from the
+	@# BoardConfig file, as it's still needed elsewhere (e.g. when creating super_empty.img).
 	$(foreach group,$(BOARD_SUPER_PARTITION_GROUPS), \
+	    $(eval _group_partition_list := $(BOARD_$(call to-upper,$(group))_PARTITION_LIST)) \
+	    $(if $(INSTALLED_VENDORIMAGE_TARGET),,$(eval _group_partition_list := $(filter-out vendor,$(_group_partition_list)))) \
 	    echo "$(group)_size=$(BOARD_$(call to-upper,$(group))_SIZE)" >> $(zip_root)/META/dynamic_partitions_info.txt; \
-	    $(if $(BOARD_$(call to-upper,$(group))_PARTITION_LIST), \
-	        echo "$(group)_partition_list=$(BOARD_$(call to-upper,$(group))_PARTITION_LIST)" >> $(zip_root)/META/dynamic_partitions_info.txt;))
-endif
-
+	    $(if $(_group_partition_list), \
+	        echo "$(group)_partition_list=$(_group_partition_list)" >> $(zip_root)/META/dynamic_partitions_info.txt;))
+endif # BOARD_SUPER_PARTITION_GROUPS
 	$(hide) PATH=$(foreach p,$(INTERNAL_USERIMAGES_BINARY_PATHS),$(p):)$$PATH MKBOOTIMG=$(MKBOOTIMG) \
 	    build/make/tools/releasetools/add_img_to_target_files -a -v -p $(HOST_OUT) $(zip_root)
 	@# Zip everything up, preserving symlinks and placing META/ files first to
@@ -3798,7 +3890,7 @@
 .PHONY: otapackage
 otapackage: $(INTERNAL_OTA_PACKAGE_TARGET)
 
-ifeq ($(PRODUCT_RETROFIT_DYNAMIC_PARTITIONS),true)
+ifeq ($(BOARD_BUILD_RETROFIT_DYNAMIC_PARTITIONS_OTA_PACKAGE),true)
 name := $(TARGET_PRODUCT)
 ifeq ($(TARGET_BUILD_TYPE),debug)
   name := $(name)_debug
@@ -3824,7 +3916,7 @@
 
 otapackage otardppackage: $(INTERNAL_OTA_RETROFIT_DYNAMIC_PARTITIONS_PACKAGE_TARGET)
 
-endif # PRODUCT_RETROFIT_DYNAMIC_PARTITIONS
+endif # BOARD_BUILD_RETROFIT_DYNAMIC_PARTITIONS_OTA_PACKAGE
 
 endif    # build_ota_package
 
@@ -4005,7 +4097,8 @@
 $(INSTALLED_SUPERIMAGE_TARGET): extracted_input_target_files := $(patsubst %.zip,%,$(BUILT_TARGET_FILES_PACKAGE))
 $(INSTALLED_SUPERIMAGE_TARGET): $(LPMAKE) $(BUILT_TARGET_FILES_PACKAGE) $(BUILD_SUPER_IMAGE)
 	$(call pretty,"Target super fs image: $@")
-	$(BUILD_SUPER_IMAGE) -v $(extracted_input_target_files) $@
+	PATH=$(dir $(LPMAKE)):$$PATH \
+	    $(BUILD_SUPER_IMAGE) -v $(extracted_input_target_files) $@
 endif
 
 $(call dist-for-goals,dist_files,$(INSTALLED_SUPERIMAGE_TARGET))
@@ -4018,9 +4111,10 @@
 	rm -rf $(intermediates)/misc_info.txt
 	$(call dump-dynamic-partitions-info,$(intermediates)/misc_info.txt)
 ifeq ($(AB_OTA_UPDATER),true)
-	$(hide) echo "ab_update=true" >> $(intermediates)/misc_info.txt
+	echo "ab_update=true" >> $(intermediates)/misc_info.txt
 endif
-	$(BUILD_SUPER_IMAGE) -v $(intermediates)/misc_info.txt $@
+	PATH=$(dir $(LPMAKE)):$$PATH \
+	    $(BUILD_SUPER_IMAGE) -v $(intermediates)/misc_info.txt $@
 
 $(call dist-for-goals,dist_files,$(INSTALLED_SUPERIMAGE_EMPTY_TARGET))
 
@@ -4042,7 +4136,7 @@
 
 systemimage: $(INSTALLED_QEMU_SYSTEMIMAGE)
 droidcore: $(INSTALLED_QEMU_SYSTEMIMAGE)
-ifeq ($(BOARD_USES_VENDORIMAGE),true)
+ifdef INSTALLED_VENDORIMAGE_TARGET
 INSTALLED_QEMU_VENDORIMAGE := $(PRODUCT_OUT)/vendor-qemu.img
 $(INSTALLED_QEMU_VENDORIMAGE): $(INSTALLED_VENDORIMAGE_TARGET) $(MK_QEMU_IMAGE_SH) $(SGDISK_HOST) $(SIMG2IMG)
 	@echo Create vendor-qemu.img
@@ -4051,7 +4145,7 @@
 vendorimage: $(INSTALLED_QEMU_VENDORIMAGE)
 droidcore: $(INSTALLED_QEMU_VENDORIMAGE)
 endif
-ifeq ($(BOARD_USES_PRODUCTIMAGE),true)
+ifdef INSTALLED_PRODUCTIMAGE_TARGET
 INSTALLED_QEMU_PRODUCTIMAGE := $(PRODUCT_OUT)/product-qemu.img
 $(INSTALLED_QEMU_PRODUCTIMAGE): $(INSTALLED_PRODUCTIMAGE_TARGET) $(MK_QEMU_IMAGE_SH) $(SGDISK_HOST) $(SIMG2IMG)
 	@echo Create product-qemu.img
@@ -4060,7 +4154,7 @@
 productimage: $(INSTALLED_QEMU_PRODUCTIMAGE)
 droidcore: $(INSTALLED_QEMU_PRODUCTIMAGE)
 endif
-ifeq ($(BOARD_USES_PRODUCT_SERVICESIMAGE),true)
+ifdef INSTALLED_PRODUCT_SERVICESIMAGE_TARGET
 INSTALLED_QEMU_PRODUCT_SERVICESIMAGE := $(PRODUCT_OUT)/product_services-qemu.img
 $(INSTALLED_QEMU_PRODUCT_SERVICESIMAGE): $(INSTALLED_PRODUCT_SERVICESIMAGE_TARGET) $(MK_QEMU_IMAGE_SH) $(SGDISK_HOST) $(SIMG2IMG)
 	@echo Create product_services-qemu.img
@@ -4069,7 +4163,7 @@
 productservicesimage: $(INSTALLED_QEMU_PRODUCT_SERVICESIMAGE)
 droidcore: $(INSTALLED_QEMU_PRODUCT_SERVICESIMAGE)
 endif
-ifeq ($(BOARD_USES_ODMIMAGE),true)
+ifdef INSTALLED_ODMIMAGE_TARGET
 INSTALLED_QEMU_ODMIMAGE := $(PRODUCT_OUT)/odm-qemu.img
 $(INSTALLED_QEMU_ODMIMAGE): $(INSTALLED_ODMIMAGE_TARGET) $(MK_QEMU_IMAGE_SH) $(SGDISK_HOST)
 	@echo Create odm-qemu.img
diff --git a/core/OWNERS b/core/OWNERS
index 570ede8..750f1fa 100644
--- a/core/OWNERS
+++ b/core/OWNERS
@@ -1 +1,3 @@
 per-file dex_preopt*.mk = ngeoffray@google.com,calin@google.com,mathewi@google.com,dbrazdil@google.com
+per-file construct_context.sh = ngeoffray@google.com,calin@google.com,mathieuc@google.com
+per-file verify_uses_libraries.sh = ngeoffray@google.com,calin@google.com,mathieuc@google.com
diff --git a/core/android_manifest.mk b/core/android_manifest.mk
index c3af942..ed759c5 100644
--- a/core/android_manifest.mk
+++ b/core/android_manifest.mk
@@ -72,8 +72,8 @@
     my_manifest_fixer_flags += --uses-non-sdk-api
 endif
 
-ifeq (true,$(LOCAL_PREFER_INTEGRITY))
-    my_manifest_fixer_flags += --prefer-integrity
+ifeq (true,$(LOCAL_PREFER_CODE_INTEGRITY))
+    my_manifest_fixer_flags += --prefer-code-integrity
 endif
 
 $(fixed_android_manifest): PRIVATE_MANIFEST_FIXER_FLAGS := $(my_manifest_fixer_flags)
diff --git a/core/app_certificate_validate.mk b/core/app_certificate_validate.mk
new file mode 100644
index 0000000..15ddd94
--- /dev/null
+++ b/core/app_certificate_validate.mk
@@ -0,0 +1,12 @@
+
+ifeq (true,$(filter true, \
+   $(LOCAL_PRODUCT_MODULE) $(LOCAL_PRODUCT_SERVICES_MODULE) \
+   $(LOCAL_VENDOR_MODULE) $(LOCAL_PROPRIETARY_MODULE)))
+  ifneq (,$(filter $(dir $(DEFAULT_SYSTEM_DEV_CERTIFICATE))%,$(LOCAL_CERTIFICATE)))
+    CERTIFICATE_VIOLATION_MODULES += $(LOCAL_MODULE)
+    ifeq (true,$(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_ENFORCE_ARTIFACT_SYSTEM_CERTIFICATE_REQUIREMENT))
+      $(if $(filter $(LOCAL_MODULE),$(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_ARTIFACT_SYSTEM_CERTIFICATE_REQUIREMENT_WHITELIST)),,\
+        $(call pretty-error,The module in product partition cannot be signed with certificate in system.))
+    endif
+  endif
+endif
\ No newline at end of file
diff --git a/core/binary.mk b/core/binary.mk
index 427f689..be10c2d 100644
--- a/core/binary.mk
+++ b/core/binary.mk
@@ -72,6 +72,9 @@
 else
   my_native_coverage := false
 endif
+ifneq ($(NATIVE_COVERAGE),true)
+  my_native_coverage := false
+endif
 
 ifeq ($(strip $(ENABLE_XOM)),true)
   ifndef LOCAL_IS_HOST_MODULE
@@ -470,144 +473,6 @@
 my_asflags += -D__ASSEMBLY__
 
 ###########################################################
-## Define PRIVATE_ variables from global vars
-###########################################################
-ifndef LOCAL_IS_HOST_MODULE
-ifdef LOCAL_USE_VNDK
-my_target_global_c_includes := \
-    $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)PROJECT_INCLUDES)
-my_target_global_c_system_includes := \
-    $(TARGET_OUT_HEADERS) \
-    $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)PROJECT_SYSTEM_INCLUDES)
-else ifdef LOCAL_SDK_VERSION
-my_target_global_c_includes :=
-my_target_global_c_system_includes := $(my_ndk_stl_include_path) $(my_ndk_sysroot_include)
-else ifdef BOARD_VNDK_VERSION
-my_target_global_c_includes := $(SRC_HEADERS) \
-    $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)PROJECT_INCLUDES) \
-    $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)C_INCLUDES)
-my_target_global_c_system_includes := $(SRC_SYSTEM_HEADERS) \
-    $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)PROJECT_SYSTEM_INCLUDES) \
-    $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)C_SYSTEM_INCLUDES)
-else
-my_target_global_c_includes := $(SRC_HEADERS) \
-    $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)PROJECT_INCLUDES) \
-    $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)C_INCLUDES)
-my_target_global_c_system_includes := $(SRC_SYSTEM_HEADERS) $(TARGET_OUT_HEADERS) \
-    $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)PROJECT_SYSTEM_INCLUDES) \
-    $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)C_SYSTEM_INCLUDES)
-endif
-
-my_target_global_cflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_CFLAGS)
-my_target_global_conlyflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_CONLYFLAGS) $(my_c_std_conlyflags)
-my_target_global_cppflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_CPPFLAGS) $(my_cpp_std_cppflags)
-ifeq ($(my_use_clang_lld),true)
-  my_target_global_ldflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_LLDFLAGS)
-  include $(BUILD_SYSTEM)/pack_dyn_relocs_setup.mk
-  ifeq ($(my_pack_module_relocations),false)
-    my_target_global_ldflags += -Wl,--pack-dyn-relocs=none
-  endif
-else
-  my_target_global_ldflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_LDFLAGS)
-endif # my_use_clang_lld
-
-$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_GLOBAL_C_INCLUDES := $(my_target_global_c_includes)
-$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_GLOBAL_C_SYSTEM_INCLUDES := $(my_target_global_c_system_includes)
-$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_TARGET_GLOBAL_CFLAGS := $(my_target_global_cflags)
-$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_TARGET_GLOBAL_CONLYFLAGS := $(my_target_global_conlyflags)
-$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_TARGET_GLOBAL_CPPFLAGS := $(my_target_global_cppflags)
-$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_TARGET_GLOBAL_LDFLAGS := $(my_target_global_ldflags)
-
-else # LOCAL_IS_HOST_MODULE
-
-my_host_global_c_includes := $(SRC_HEADERS) \
-    $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)C_INCLUDES)
-my_host_global_c_system_includes := $(SRC_SYSTEM_HEADERS) \
-    $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)C_SYSTEM_INCLUDES)
-
-my_host_global_cflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_CFLAGS)
-my_host_global_conlyflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_CONLYFLAGS) $(my_c_std_conlyflags)
-my_host_global_cppflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_CPPFLAGS) $(my_cpp_std_cppflags)
-ifeq ($(my_use_clang_lld),true)
-  my_host_global_ldflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_LLDFLAGS)
-else
-  my_host_global_ldflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_LDFLAGS)
-endif # my_use_clang_lld
-
-$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_GLOBAL_C_INCLUDES := $(my_host_global_c_includes)
-$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_GLOBAL_C_SYSTEM_INCLUDES := $(my_host_global_c_system_includes)
-$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_HOST_GLOBAL_CFLAGS := $(my_host_global_cflags)
-$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_HOST_GLOBAL_CONLYFLAGS := $(my_host_global_conlyflags)
-$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_HOST_GLOBAL_CPPFLAGS := $(my_host_global_cppflags)
-$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_HOST_GLOBAL_LDFLAGS := $(my_host_global_ldflags)
-endif # LOCAL_IS_HOST_MODULE
-
-# To enable coverage for a given module, set LOCAL_NATIVE_COVERAGE=true and
-# build with NATIVE_COVERAGE=true in your enviornment. Note that the build
-# system is not sensitive to changes to NATIVE_COVERAGE, so you should do a
-# clean build of your module after toggling it.
-ifeq ($(NATIVE_COVERAGE),true)
-    ifeq ($(my_native_coverage),true)
-        # Note that clang coverage doesn't play nicely with acov out of the box.
-        # Clang apparently generates .gcno files that aren't compatible with
-        # gcov-4.8.  This can be solved by installing gcc-4.6 and invoking lcov
-        # with `--gcov-tool /usr/bin/gcov-4.6`.
-        #
-        # http://stackoverflow.com/questions/17758126/clang-code-coverage-invalid-output
-        my_cflags += --coverage -O0
-        my_ldflags += --coverage
-    endif
-
-    my_coverage_lib := $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)LIBPROFILE_RT)
-
-    $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_TARGET_COVERAGE_LIB := $(my_coverage_lib)
-    $(LOCAL_INTERMEDIATE_TARGETS): $(my_coverage_lib)
-else
-    my_native_coverage := false
-endif
-
-###########################################################
-## Define PRIVATE_ variables used by multiple module types
-###########################################################
-$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_NO_DEFAULT_COMPILER_FLAGS := \
-    $(strip $(LOCAL_NO_DEFAULT_COMPILER_FLAGS))
-
-ifeq ($(strip $(WITH_STATIC_ANALYZER)),)
-  LOCAL_NO_STATIC_ANALYZER := true
-endif
-
-ifneq ($(strip $(LOCAL_IS_HOST_MODULE)),)
-  my_syntax_arch := host
-else
-  my_syntax_arch := $($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)
-endif
-
-ifeq ($(strip $(my_cc)),)
-  my_cc := $(my_cc_wrapper) $(CLANG)
-endif
-
-SYNTAX_TOOLS_PREFIX := \
-    $(LLVM_PREBUILTS_BASE)/$(BUILD_OS)-x86/$(LLVM_PREBUILTS_VERSION)/libexec
-
-ifneq ($(LOCAL_NO_STATIC_ANALYZER),true)
-  my_cc := CCC_CC=$(CLANG) CLANG=$(CLANG) \
-           $(SYNTAX_TOOLS_PREFIX)/ccc-analyzer
-endif
-
-$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CC := $(my_cc)
-
-ifeq ($(strip $(my_cxx)),)
-  my_cxx := $(my_cxx_wrapper) $(CLANG_CXX)
-endif
-
-ifneq ($(LOCAL_NO_STATIC_ANALYZER),true)
-  my_cxx := CCC_CXX=$(CLANG_CXX) CLANG_CXX=$(CLANG_CXX) \
-            $(SYNTAX_TOOLS_PREFIX)/c++-analyzer
-endif
-
-$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_LINKER := $(my_linker)
-$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CXX := $(my_cxx)
-
 # TODO: support a mix of standard extensions so that this isn't necessary
 LOCAL_CPP_EXTENSION := $(strip $(LOCAL_CPP_EXTENSION))
 ifeq ($(LOCAL_CPP_EXTENSION),)
@@ -913,8 +778,6 @@
 # Thus we'll actually generate source for each architecture.
 $(foreach s,$(vts_src),\
     $(eval $(call define-vts-cpp-rule,$(s),$(vts_gen_cpp_root),vts_gen_cpp)))
-$(foreach cpp,$(vts_gen_cpp), \
-    $(call include-depfile,$(addsuffix .vts.P,$(basename $(cpp))),$(cpp)))
 $(call track-src-file-gen,$(vts_src),$(vts_gen_cpp))
 
 $(vts_gen_cpp) : PRIVATE_MODULE := $(LOCAL_MODULE)
@@ -1445,6 +1308,8 @@
 
 all_objects := $(normal_objects) $(gen_o_objects)
 
+LOCAL_INTERMEDIATE_TARGETS += $(all_objects)
+
 # Cleanup file tracking
 $(foreach f,$(my_tracked_gen_files),$(eval my_src_file_gen_$(s):=))
 my_tracked_gen_files :=
@@ -1571,6 +1436,9 @@
 $(notice_target): | $(installed_static_library_notice_file_targets)
 $(LOCAL_INSTALLED_MODULE): | $(notice_target)
 
+$(notice_target): | $(installed_static_library_notice_file_targets)
+$(LOCAL_INSTALLED_MODULE): | $(notice_target)
+
 # Default is -fno-rtti.
 ifeq ($(strip $(LOCAL_RTTI_FLAG)),)
 LOCAL_RTTI_FLAG := -fno-rtti
@@ -1735,6 +1603,141 @@
 # (start-group/end-group), so append after the check above.
 my_ldlibs += $(my_cxx_ldlibs)
 
+###########################################################
+## Define PRIVATE_ variables from global vars
+###########################################################
+ifndef LOCAL_IS_HOST_MODULE
+ifdef LOCAL_USE_VNDK
+my_target_global_c_includes := \
+    $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)PROJECT_INCLUDES)
+my_target_global_c_system_includes := \
+    $(TARGET_OUT_HEADERS) \
+    $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)PROJECT_SYSTEM_INCLUDES)
+else ifdef LOCAL_SDK_VERSION
+my_target_global_c_includes :=
+my_target_global_c_system_includes := $(my_ndk_stl_include_path) $(my_ndk_sysroot_include)
+else ifdef BOARD_VNDK_VERSION
+my_target_global_c_includes := $(SRC_HEADERS) \
+    $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)PROJECT_INCLUDES) \
+    $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)C_INCLUDES)
+my_target_global_c_system_includes := $(SRC_SYSTEM_HEADERS) \
+    $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)PROJECT_SYSTEM_INCLUDES) \
+    $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)C_SYSTEM_INCLUDES)
+else
+my_target_global_c_includes := $(SRC_HEADERS) \
+    $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)PROJECT_INCLUDES) \
+    $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)C_INCLUDES)
+my_target_global_c_system_includes := $(SRC_SYSTEM_HEADERS) $(TARGET_OUT_HEADERS) \
+    $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)PROJECT_SYSTEM_INCLUDES) \
+    $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)C_SYSTEM_INCLUDES)
+endif
+
+my_target_global_cflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_CFLAGS)
+my_target_global_conlyflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_CONLYFLAGS) $(my_c_std_conlyflags)
+my_target_global_cppflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_CPPFLAGS) $(my_cpp_std_cppflags)
+ifeq ($(my_use_clang_lld),true)
+  my_target_global_ldflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_LLDFLAGS)
+  include $(BUILD_SYSTEM)/pack_dyn_relocs_setup.mk
+  ifeq ($(my_pack_module_relocations),false)
+    my_target_global_ldflags += -Wl,--pack-dyn-relocs=none
+  endif
+else
+  my_target_global_ldflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_LDFLAGS)
+endif # my_use_clang_lld
+
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_GLOBAL_C_INCLUDES := $(my_target_global_c_includes)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_GLOBAL_C_SYSTEM_INCLUDES := $(my_target_global_c_system_includes)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_TARGET_GLOBAL_CFLAGS := $(my_target_global_cflags)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_TARGET_GLOBAL_CONLYFLAGS := $(my_target_global_conlyflags)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_TARGET_GLOBAL_CPPFLAGS := $(my_target_global_cppflags)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_TARGET_GLOBAL_LDFLAGS := $(my_target_global_ldflags)
+
+else # LOCAL_IS_HOST_MODULE
+
+my_host_global_c_includes := $(SRC_HEADERS) \
+    $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)C_INCLUDES)
+my_host_global_c_system_includes := $(SRC_SYSTEM_HEADERS) \
+    $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)C_SYSTEM_INCLUDES)
+
+my_host_global_cflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_CFLAGS)
+my_host_global_conlyflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_CONLYFLAGS) $(my_c_std_conlyflags)
+my_host_global_cppflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_CPPFLAGS) $(my_cpp_std_cppflags)
+ifeq ($(my_use_clang_lld),true)
+  my_host_global_ldflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_LLDFLAGS)
+else
+  my_host_global_ldflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_LDFLAGS)
+endif # my_use_clang_lld
+
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_GLOBAL_C_INCLUDES := $(my_host_global_c_includes)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_GLOBAL_C_SYSTEM_INCLUDES := $(my_host_global_c_system_includes)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_HOST_GLOBAL_CFLAGS := $(my_host_global_cflags)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_HOST_GLOBAL_CONLYFLAGS := $(my_host_global_conlyflags)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_HOST_GLOBAL_CPPFLAGS := $(my_host_global_cppflags)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_HOST_GLOBAL_LDFLAGS := $(my_host_global_ldflags)
+endif # LOCAL_IS_HOST_MODULE
+
+# To enable coverage for a given module, set LOCAL_NATIVE_COVERAGE=true and
+# build with NATIVE_COVERAGE=true in your enviornment.
+ifeq ($(NATIVE_COVERAGE),true)
+    ifeq ($(my_native_coverage),true)
+        # Note that clang coverage doesn't play nicely with acov out of the box.
+        # Clang apparently generates .gcno files that aren't compatible with
+        # gcov-4.8.  This can be solved by installing gcc-4.6 and invoking lcov
+        # with `--gcov-tool /usr/bin/gcov-4.6`.
+        #
+        # http://stackoverflow.com/questions/17758126/clang-code-coverage-invalid-output
+        my_cflags += --coverage -O0
+        my_ldflags += --coverage
+    endif
+
+    my_coverage_lib := $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)LIBPROFILE_RT)
+
+    $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_TARGET_COVERAGE_LIB := $(my_coverage_lib)
+    $(LOCAL_INTERMEDIATE_TARGETS): $(my_coverage_lib)
+endif
+
+###########################################################
+## Define PRIVATE_ variables used by multiple module types
+###########################################################
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_NO_DEFAULT_COMPILER_FLAGS := \
+    $(strip $(LOCAL_NO_DEFAULT_COMPILER_FLAGS))
+
+ifeq ($(strip $(WITH_STATIC_ANALYZER)),)
+  LOCAL_NO_STATIC_ANALYZER := true
+endif
+
+ifneq ($(strip $(LOCAL_IS_HOST_MODULE)),)
+  my_syntax_arch := host
+else
+  my_syntax_arch := $($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)
+endif
+
+ifeq ($(strip $(my_cc)),)
+  my_cc := $(my_cc_wrapper) $(CLANG)
+endif
+
+SYNTAX_TOOLS_PREFIX := \
+    $(LLVM_PREBUILTS_BASE)/$(BUILD_OS)-x86/$(LLVM_PREBUILTS_VERSION)/libexec
+
+ifneq ($(LOCAL_NO_STATIC_ANALYZER),true)
+  my_cc := CCC_CC=$(CLANG) CLANG=$(CLANG) \
+           $(SYNTAX_TOOLS_PREFIX)/ccc-analyzer
+endif
+
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CC := $(my_cc)
+
+ifeq ($(strip $(my_cxx)),)
+  my_cxx := $(my_cxx_wrapper) $(CLANG_CXX)
+endif
+
+ifneq ($(LOCAL_NO_STATIC_ANALYZER),true)
+  my_cxx := CCC_CXX=$(CLANG_CXX) CLANG_CXX=$(CLANG_CXX) \
+            $(SYNTAX_TOOLS_PREFIX)/c++-analyzer
+endif
+
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_LINKER := $(my_linker)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CXX := $(my_cxx)
+
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_YACCFLAGS := $(LOCAL_YACCFLAGS)
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ASFLAGS := $(my_asflags)
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CONLYFLAGS := $(my_conlyflags)
diff --git a/core/clear_vars.mk b/core/clear_vars.mk
index 0417e13..b47071a 100644
--- a/core/clear_vars.mk
+++ b/core/clear_vars.mk
@@ -51,7 +51,6 @@
 LOCAL_CTS_TEST_RUNNER:=
 LOCAL_CXX:=
 LOCAL_CXX_STL := default
-LOCAL_DATA_BINDING:=
 LOCAL_DEX_PREOPT_APP_IMAGE:=
 LOCAL_DEX_PREOPT_FLAGS:=
 LOCAL_DEX_PREOPT_GENERATE_PROFILE:=
@@ -213,7 +212,7 @@
 LOCAL_PREBUILT_OBJ_FILES:=
 LOCAL_PREBUILT_STATIC_JAVA_LIBRARIES:=
 LOCAL_PREBUILT_STRIP_COMMENTS:=
-LOCAL_PREFER_INTEGRITY:=
+LOCAL_PREFER_CODE_INTEGRITY:=
 LOCAL_PRESUBMIT_DISABLED:=
 LOCAL_PRIVATE_PLATFORM_APIS:=
 LOCAL_PRIVILEGED_MODULE:=
@@ -248,6 +247,7 @@
 LOCAL_SANITIZE:=
 LOCAL_SANITIZE_DIAG:=
 LOCAL_SANITIZE_RECOVER:=
+LOCAL_SANITIZE_NO_RECOVER:=
 LOCAL_SANITIZE_BLACKLIST :=
 LOCAL_SDK_LIBRARIES :=
 LOCAL_SDK_RES_VERSION:=
@@ -255,6 +255,7 @@
 LOCAL_SHARED_ANDROID_LIBRARIES:=
 LOCAL_SHARED_LIBRARIES:=
 LOCAL_SOONG_AAR :=
+LOCAL_SOONG_BUILT_INSTALLED :=
 LOCAL_SOONG_BUNDLE :=
 LOCAL_SOONG_CLASSES_JAR :=
 LOCAL_SOONG_DEX_JAR :=
@@ -277,7 +278,6 @@
 LOCAL_STATIC_JAVA_AAR_LIBRARIES:=
 LOCAL_STATIC_JAVA_LIBRARIES:=
 LOCAL_STATIC_LIBRARIES:=
-LOCAL_STRIP_DEX:=
 LOCAL_STRIP_MODULE:=
 LOCAL_SYSTEM_SHARED_LIBRARIES:=none
 LOCAL_TARGET_REQUIRED_MODULES:=
diff --git a/core/config.mk b/core/config.mk
index b7c2ed1..c0a159d 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -120,6 +120,8 @@
 
 include $(BUILD_SYSTEM_COMMON)/strings.mk
 
+include $(BUILD_SYSTEM_COMMON)/json.mk
+
 # Various mappings to avoid hard-coding paths all over the place
 include $(BUILD_SYSTEM)/pathmap.mk
 
@@ -567,6 +569,13 @@
 endif
 .KATI_READONLY := ALLOW_MISSING_DEPENDENCIES
 
+TARGET_BUILD_APPS_USE_PREBUILT_SDK :=
+ifdef TARGET_BUILD_APPS
+  ifndef UNBUNDLED_BUILD_SDKS_FROM_SOURCE
+    TARGET_BUILD_APPS_USE_PREBUILT_SDK := true
+  endif
+endif
+
 prebuilt_sdk_tools := prebuilts/sdk/tools
 prebuilt_sdk_tools_bin := $(prebuilt_sdk_tools)/$(HOST_OS)/bin
 
@@ -678,7 +687,7 @@
 else
 AVBTOOL := $(BOARD_CUSTOM_AVBTOOL)
 endif
-APICHECK := $(HOST_OUT_EXECUTABLES)/apicheck$(HOST_EXECUTABLE_SUFFIX)
+APICHECK := $(HOST_OUT_JAVA_LIBRARIES)/metalava$(COMMON_JAVA_PACKAGE_SUFFIX)
 FS_GET_STATS := $(HOST_OUT_EXECUTABLES)/fs_get_stats$(HOST_EXECUTABLE_SUFFIX)
 MAKE_EXT4FS := $(HOST_OUT_EXECUTABLES)/mke2fs$(HOST_EXECUTABLE_SUFFIX)
 MKEXTUSERIMG := $(HOST_OUT_EXECUTABLES)/mkuserimg_mke2fs
@@ -746,13 +755,7 @@
 MD5SUM:=md5sum
 endif
 
-APICHECK_CLASSPATH_ENTRIES := \
-    $(HOST_OUT_JAVA_LIBRARIES)/apicheck$(COMMON_JAVA_PACKAGE_SUFFIX) \
-    $(HOST_JDK_TOOLS_JAR) \
-    )
-APICHECK_CLASSPATH := $(subst $(space),:,$(strip $(APICHECK_CLASSPATH_ENTRIES)))
-
-APICHECK_COMMAND := $(APICHECK) -JXmx1024m -J"classpath $(APICHECK_CLASSPATH)"
+APICHECK_COMMAND := $(JAVA) -Xmx4g -jar $(APICHECK) --no-banner --compatible-output=yes
 
 # Boolean variable determining if the whitelist for compatible properties is enabled
 PRODUCT_COMPATIBLE_PROPERTY := false
@@ -1055,31 +1058,52 @@
 # The metadata device must be supplied to init via the kernel command-line.
 BOARD_KERNEL_CMDLINE += androidboot.super_partition=$(BOARD_SUPER_PARTITION_METADATA_DEVICE)
 
-else # PRODUCT_RETROFIT_DYNAMIC_PARTITIONS
+BOARD_BUILD_RETROFIT_DYNAMIC_PARTITIONS_OTA_PACKAGE := true
 
-# These should not be specified on devices launching with dynamic partition support.
-ifdef BOARD_SUPER_PARTITION_BLOCK_DEVICES
-$(error BOARD_SUPER_PARTITION_BLOCK_DEVICES can only be used if PRODUCT_RETROFIT_DYNAMIC_PARTITIONS is true.)
-endif
-ifdef BOARD_SUPER_PARTITION_METADATA_DEVICE
-$(error BOARD_SUPER_PARTITION_METADATA_DEVICE can only be used if PRODUCT_RETROFIT_DYNAMIC_PARTITIONS is true.)
-endif
+# If "vendor" is listed as one of the dynamic partitions but without its image available (e.g. an
+# AOSP target built without vendor image), don't build the retrofit full OTA package. Because we
+# won't be able to build meaningful super_* images for retrofitting purpose.
+ifneq (,$(filter vendor,$(BOARD_SUPER_PARTITION_PARTITION_LIST)))
+ifndef BOARD_VENDORIMAGE_FILE_SYSTEM_TYPE
+ifndef BOARD_PREBUILT_VENDORIMAGE
+BOARD_BUILD_RETROFIT_DYNAMIC_PARTITIONS_OTA_PACKAGE :=
+endif # BOARD_PREBUILT_VENDORIMAGE
+endif # BOARD_VENDORIMAGE_FILE_SYSTEM_TYPE
+endif # BOARD_SUPER_PARTITION_PARTITION_LIST
+
+else # PRODUCT_RETROFIT_DYNAMIC_PARTITIONS
 
 # For normal devices, we populate BOARD_SUPER_PARTITION_BLOCK_DEVICES so the
 # build can handle both cases consistently.
-BOARD_SUPER_PARTITION_BLOCK_DEVICES := super
+ifeq ($(BOARD_SUPER_PARTITION_METADATA_DEVICE),)
 BOARD_SUPER_PARTITION_METADATA_DEVICE := super
-BOARD_SUPER_PARTITION_SUPER_DEVICE_SIZE := $(BOARD_SUPER_PARTITION_SIZE)
+endif
+
+ifeq ($(BOARD_SUPER_PARTITION_BLOCK_DEVICES),)
+BOARD_SUPER_PARTITION_BLOCK_DEVICES := $(BOARD_SUPER_PARTITION_METADATA_DEVICE)
+endif
+
+# If only one super block device, default to super partition size.
+ifeq ($(word 2,$(BOARD_SUPER_PARTITION_BLOCK_DEVICES)),)
+BOARD_SUPER_PARTITION_$(call to-upper,$(strip $(BOARD_SUPER_PARTITION_BLOCK_DEVICES)))_DEVICE_SIZE ?= \
+    $(BOARD_SUPER_PARTITION_SIZE)
+endif
+
+ifneq ($(BOARD_SUPER_PARTITION_METADATA_DEVICE),super)
+BOARD_KERNEL_CMDLINE += androidboot.super_partition=$(BOARD_SUPER_PARTITION_METADATA_DEVICE)
+endif
+BOARD_BUILD_RETROFIT_DYNAMIC_PARTITIONS_OTA_PACKAGE :=
 
 endif # PRODUCT_RETROFIT_DYNAMIC_PARTITIONS
 endif # BOARD_SUPER_PARTITION_SIZE
 .KATI_READONLY := BOARD_SUPER_PARTITION_BLOCK_DEVICES
 .KATI_READONLY := BOARD_SUPER_PARTITION_METADATA_DEVICE
+.KATI_READONLY := BOARD_BUILD_RETROFIT_DYNAMIC_PARTITIONS_OTA_PACKAGE
 
 $(foreach device,$(call to-upper,$(BOARD_SUPER_PARTITION_BLOCK_DEVICES)), \
     $(eval BOARD_SUPER_PARTITION_$(device)_DEVICE_SIZE := $(strip $(BOARD_SUPER_PARTITION_$(device)_DEVICE_SIZE))) \
     $(if $(BOARD_SUPER_PARTITION_$(device)_DEVICE_SIZE),, \
-        $(error $(BOARD_SUPER_PARTITION_$(device)_DEVICE_SIZE must not be empty))) \
+        $(error BOARD_SUPER_PARTITION_$(device)_DEVICE_SIZE must not be empty)) \
     $(eval .KATI_READONLY := BOARD_SUPER_PARTITION_$(device)_DEVICE_SIZE))
 
 endif # PRODUCT_BUILD_SUPER_PARTITION
diff --git a/core/config_sanitizers.mk b/core/config_sanitizers.mk
index 7b4015e..6c9caa8 100644
--- a/core/config_sanitizers.mk
+++ b/core/config_sanitizers.mk
@@ -337,7 +337,7 @@
       my_ldflags += -Wl,--as-needed
     endif
 
-    ifeq ($(LOCAL_MODULE_CLASS),EXECUTABLES)
+    ifneq ($(filter EXECUTABLES NATIVE_TESTS,$(LOCAL_MODULE_CLASS)),)
       ifneq ($(LOCAL_FORCE_STATIC_EXECUTABLE),true)
         my_linker := $($(LOCAL_2ND_ARCH_VAR_PREFIX)ADDRESS_SANITIZER_LINKER)
         # Make sure linker_asan get installed.
@@ -401,6 +401,11 @@
   my_cflags += -fsanitize-recover=$(recover_arg)
 endif
 
+ifneq ($(strip $(LOCAL_SANITIZE_NO_RECOVER)),)
+  no_recover_arg := $(subst $(space),$(comma),$(LOCAL_SANITIZE_NO_RECOVER)),
+  my_cflags += -fno-sanitize-recover=$(no_recover_arg)
+endif
+
 ifneq ($(my_sanitize_diag),)
   # TODO(vishwath): Add diagnostic support for static executables once
   # we switch to clang-4393122 (which adds the static ubsan runtime
diff --git a/core/construct_context.sh b/core/construct_context.sh
index b4ae519..399c15d 100755
--- a/core/construct_context.sh
+++ b/core/construct_context.sh
@@ -16,39 +16,54 @@
 
 set -e
 
-# inputs:
-# $1 is PRIVATE_CONDITIONAL_USES_LIBRARIES_HOST
-# $2 is PRIVATE_CONDITIONAL_USES_LIBRARIES_TARGET
-
-# class_loader_context: library paths on the host
-# stored_class_loader_context_libs: library paths on device
-# these are both comma separated paths, example: lib1.jar:lib2.jar or /system/framework/lib1.jar:/system/framework/lib2.jar
-
 # target_sdk_version: parsed from manifest
-# my_conditional_host_libs: libraries conditionally added for non P
-# my_conditional_target_libs: target libraries conditionally added for non P
 #
 # outputs
 # class_loader_context_arg: final class loader conext arg
 # stored_class_loader_context_arg: final stored class loader context arg
 
-my_conditional_host_libs=$1
-my_conditional_target_libs=$2
+# The hidl.manager shared library has a dependency on hidl.base. We'll manually
+# add that information to the class loader context if we see those libraries.
+hidl_manager="android.hidl.manager-V1.0-java"
+hidl_base="android.hidl.base-V1.0-java"
 
-# Note that SDK 28 is P.
+function add_to_contexts {
+  for i in $1; do
+    if [[ -z "${class_loader_context}" ]]; then
+      export class_loader_context="PCL[$i]"
+    else
+      export class_loader_context+="#PCL[$i]"
+    fi
+    if [[ $i == *"$hidl_manager"* ]]; then
+      export class_loader_context+="{PCL[${i/$hidl_manager/$hidl_base}]}"
+    fi
+  done
+
+  for i in $2; do
+    if [[ -z "${stored_class_loader_context}" ]]; then
+      export stored_class_loader_context="PCL[$i]"
+    else
+      export stored_class_loader_context+="#PCL[$i]"
+    fi
+    if [[ $i == *"$hidl_manager"* ]]; then
+      export stored_class_loader_context+="{PCL[${i/$hidl_manager/$hidl_base}]}"
+    fi
+  done
+}
+
+# The order below must match what the package manager also computes for
+# class loader context.
+
 if [[ "${target_sdk_version}" -lt "28" ]]; then
-  if [[ -z "${class_loader_context}" ]]; then
-    export class_loader_context="${my_conditional_host_libs}"
-  else
-    export class_loader_context="${my_conditional_host_libs}:${class_loader_context}"
-  fi
-  if [[ -z "${stored_class_loader_context_libs}" ]]; then
-    export stored_class_loader_context_libs="${my_conditional_target_libs}";
-  else
-    export stored_class_loader_context_libs="${my_conditional_target_libs}:${stored_class_loader_context_libs}";
-  fi
+  add_to_contexts "${conditional_host_libs_28}" "${conditional_target_libs_28}"
 fi
 
+if [[ "${target_sdk_version}" -lt "29" ]]; then
+  add_to_contexts "${conditional_host_libs_29}" "${conditional_target_libs_29}"
+fi
+
+add_to_contexts "${dex_preopt_host_libraries}" "${dex_preopt_target_libraries}"
+
 # Generate the actual context string.
-export class_loader_context_arg="--class-loader-context=PCL[${class_loader_context}]"
-export stored_class_loader_context_arg="--stored-class-loader-context=PCL[${stored_class_loader_context_libs}]"
+export class_loader_context_arg="--class-loader-context=PCL[]{${class_loader_context}}"
+export stored_class_loader_context_arg="--stored-class-loader-context=PCL[]{${stored_class_loader_context}}"
diff --git a/core/definitions.mk b/core/definitions.mk
index 50c26d3..d5c7b91 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -77,6 +77,9 @@
 # GPL module license files
 ALL_GPL_MODULE_LICENSE_FILES:=
 
+# Packages with certificate violation
+CERTIFICATE_VIOLATION_MODULES :=
+
 # Target and host installed module's dependencies on shared libraries.
 # They are list of "<module_name>:<installed_file>:lib1,lib2...".
 TARGET_DEPENDENCIES_ON_SHARED_LIBRARIES :=
@@ -1023,7 +1026,7 @@
 @mkdir -p $(dir $@)
 @mkdir -p $(PRIVATE_HEADER_OUTPUT_DIR)
 @echo "Generating C++ from VTS: $(PRIVATE_MODULE) <= $<"
-$(hide) $(VTSC) -d$(basename $@).vts.P $(PRIVATE_VTS_FLAGS) \
+$(hide) $(VTSC) -TODO_b/120496070 $(PRIVATE_VTS_FLAGS) \
     $< $(PRIVATE_HEADER_OUTPUT_DIR) $@
 endef
 
@@ -2370,7 +2373,7 @@
 define run-appcompat
 $(hide) \
   echo "appcompat.sh output:" >> $(PRODUCT_OUT)/appcompat/$(PRIVATE_MODULE).log && \
-  PACKAGING=$(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING art/tools/veridex/appcompat.sh --dex-file=$@ 2>&1 >> $(PRODUCT_OUT)/appcompat/$(PRIVATE_MODULE).log
+  PACKAGING=$(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING ANDROID_LOG_TAGS="*:e" art/tools/veridex/appcompat.sh --dex-file=$@ 2>&1 >> $(PRODUCT_OUT)/appcompat/$(PRIVATE_MODULE).log
 endef
 appcompat-files = \
   art/tools/veridex/appcompat.sh \
@@ -2704,9 +2707,9 @@
 $(INTERNAL_PLATFORM_HIDDENAPI_FLAGS): $(2)
 $(INTERNAL_PLATFORM_HIDDENAPI_FLAGS): PRIVATE_FLAGS_INPUTS := $$(PRIVATE_FLAGS_INPUTS) $(2)
 
-$(INTERNAL_PLATFORM_HIDDENAPI_GREYLIST_METADATA): $(5)
+$(INTERNAL_PLATFORM_HIDDENAPI_GREYLIST_METADATA): $(3)
 $(INTERNAL_PLATFORM_HIDDENAPI_GREYLIST_METADATA): \
-    PRIVATE_METADATA_INPUTS := $$(PRIVATE_METADATA_INPUTS) $(5)
+    PRIVATE_METADATA_INPUTS := $$(PRIVATE_METADATA_INPUTS) $(3)
 
 endif
 endef
@@ -2904,7 +2907,7 @@
 define check-api
 $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/$(strip $(1))-timestamp: $(2) $(3) $(4) $(APICHECK) $(9)
 	@echo "Checking API:" $(1)
-	$(hide) ( $(APICHECK_COMMAND) $(6) $(2) $(3) $(4) $(5) || ( $(7) ; exit 38 ) )
+	$(hide) ( $(APICHECK_COMMAND) --check-api-files $(6) $(2) $(3) $(4) $(5) || ( $(7) ; exit 38 ) )
 	$(hide) mkdir -p $$(dir $$@)
 	$(hide) touch $$@
 $(8): $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/$(strip $(1))-timestamp
diff --git a/core/dex_preopt.mk b/core/dex_preopt.mk
index 92ed970..4d7d11c 100644
--- a/core/dex_preopt.mk
+++ b/core/dex_preopt.mk
@@ -3,31 +3,7 @@
 #
 ####################################
 
-# list of boot classpath jars for dexpreopt
-DEXPREOPT_BOOT_JARS := $(subst $(space),:,$(PRODUCT_BOOT_JARS))
-DEXPREOPT_BOOT_JARS_MODULES := $(PRODUCT_BOOT_JARS)
-PRODUCT_BOOTCLASSPATH := $(subst $(space),:,$(foreach m,$(DEXPREOPT_BOOT_JARS_MODULES),/system/framework/$(m).jar))
-
-PRODUCT_SYSTEM_SERVER_CLASSPATH := $(subst $(space),:,$(foreach m,$(PRODUCT_SYSTEM_SERVER_JARS),/system/framework/$(m).jar))
-
-DEXPREOPT_BUILD_DIR := $(OUT_DIR)
-DEXPREOPT_PRODUCT_DIR_FULL_PATH := $(PRODUCT_OUT)/dex_bootjars
-DEXPREOPT_PRODUCT_DIR := $(patsubst $(DEXPREOPT_BUILD_DIR)/%,%,$(DEXPREOPT_PRODUCT_DIR_FULL_PATH))
-DEXPREOPT_BOOT_JAR_DIR := system/framework
-DEXPREOPT_BOOT_JAR_DIR_FULL_PATH := $(DEXPREOPT_PRODUCT_DIR_FULL_PATH)/$(DEXPREOPT_BOOT_JAR_DIR)
-
-# The default value for LOCAL_DEX_PREOPT
-DEX_PREOPT_DEFAULT ?= true
-
-# The default filter for which files go into the system_other image (if it is
-# being used). To bundle everything one should set this to '%'
-SYSTEM_OTHER_ODEX_FILTER ?= \
-    app/% \
-    priv-app/% \
-    product_services/app/% \
-    product_services/priv-app/% \
-    product/app/% \
-    product/priv-app/% \
+include $(BUILD_SYSTEM)/dex_preopt_config.mk
 
 # Method returning whether the install path $(1) should be for system_other.
 # Under SANITIZE_LITE, we do not want system_other. Just put things under /data/asan.
@@ -37,35 +13,6 @@
 install-on-system-other = $(filter-out $(PRODUCT_DEXPREOPT_SPEED_APPS) $(PRODUCT_SYSTEM_SERVER_APPS),$(basename $(notdir $(filter $(foreach f,$(SYSTEM_OTHER_ODEX_FILTER),$(TARGET_OUT)/$(f)),$(1)))))
 endif
 
-# The default values for pre-opting: always preopt PIC.
-# Conditional to building on linux, as dex2oat currently does not work on darwin.
-ifeq ($(HOST_OS),linux)
-  WITH_DEXPREOPT ?= true
-  ifeq (eng,$(TARGET_BUILD_VARIANT))
-    # Don't strip for quick development turnarounds.
-    DEX_PREOPT_DEFAULT := nostripping
-    # For an eng build only pre-opt the boot image and system server. This gives reasonable performance
-    # and still allows a simple workflow: building in frameworks/base and syncing.
-    WITH_DEXPREOPT_BOOT_IMG_AND_SYSTEM_SERVER_ONLY ?= true
-  endif
-  # Add mini-debug-info to the boot classpath unless explicitly asked not to.
-  ifneq (false,$(WITH_DEXPREOPT_DEBUG_INFO))
-    PRODUCT_DEX_PREOPT_BOOT_FLAGS += --generate-mini-debug-info
-  endif
-
-  # Non eng linux builds must have preopt enabled so that system server doesn't run as interpreter
-  # only. b/74209329
-  ifeq (,$(filter eng, $(TARGET_BUILD_VARIANT)))
-    ifneq (true,$(WITH_DEXPREOPT))
-      ifneq (true,$(WITH_DEXPREOPT_BOOT_IMG_AND_SYSTEM_SERVER_ONLY))
-        $(call pretty-error, DEXPREOPT must be enabled for user and userdebug builds)
-      endif
-    endif
-  endif
-endif
-
-GLOBAL_DEXPREOPT_FLAGS :=
-
 # Special rules for building stripped boot jars that override java_library.mk rules
 
 # $(1): boot jar module name
@@ -83,19 +30,6 @@
 
 include $(BUILD_SYSTEM)/dex_preopt_libart.mk
 
-# Define dexpreopt-one-file based on current default runtime.
-# $(1): the input .jar or .apk file
-# $(2): the output .odex file
-define dexpreopt-one-file
-$(call dex2oat-one-file,$(1),$(2))
-endef
-
-DEXPREOPT_ONE_FILE_DEPENDENCY_TOOLS := $(DEX2OAT_DEPENDENCY)
-DEXPREOPT_ONE_FILE_DEPENDENCY_BUILT_BOOT_PREOPT := $(DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME)
-ifdef TARGET_2ND_ARCH
-$(TARGET_2ND_ARCH_VAR_PREFIX)DEXPREOPT_ONE_FILE_DEPENDENCY_BUILT_BOOT_PREOPT := $($(TARGET_2ND_ARCH_VAR_PREFIX)DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME)
-endif  # TARGET_2ND_ARCH
-
 # === hiddenapi rules ===
 
 hiddenapi_stubs_jar = $(call intermediates-dir-for,JAVA_LIBRARIES,$(1),,COMMON)/javalib.jar
@@ -149,10 +83,12 @@
 	$(call commit-change-for-toc,$(INTERNAL_PLATFORM_HIDDENAPI_PUBLIC_LIST))
 	$(call commit-change-for-toc,$(INTERNAL_PLATFORM_HIDDENAPI_PRIVATE_LIST))
 
+
+
 ifeq ($(PRODUCT_DIST_BOOT_AND_SYSTEM_JARS),true)
 boot_profile_jars_zip := $(PRODUCT_OUT)/boot_profile_jars.zip
 all_boot_jars := \
-  $(foreach m,$(DEXPREOPT_BOOT_JARS_MODULES),$(PRODUCT_OUT)/system/framework/$(m).jar) \
+  $(foreach m,$(PRODUCT_BOOT_JARS),$(PRODUCT_OUT)/system/framework/$(m).jar) \
   $(foreach m,$(PRODUCT_SYSTEM_SERVER_JARS),$(PRODUCT_OUT)/system/framework/$(m).jar)
 
 $(boot_profile_jars_zip): PRIVATE_JARS := $(all_boot_jars)
diff --git a/core/dex_preopt_config.mk b/core/dex_preopt_config.mk
new file mode 100644
index 0000000..0793516
--- /dev/null
+++ b/core/dex_preopt_config.mk
@@ -0,0 +1,205 @@
+DEX_PREOPT_CONFIG := $(PRODUCT_OUT)/dexpreopt.config
+
+# list of boot classpath jars for dexpreopt
+DEXPREOPT_BOOT_JARS_MODULES := $(PRODUCT_BOOT_JARS)
+PRODUCT_BOOTCLASSPATH_JARS := $(strip $(DEXPREOPT_BOOT_JARS_MODULES))
+PRODUCT_BOOTCLASSPATH := $(subst $(space),:,$(foreach m,$(PRODUCT_BOOTCLASSPATH_JARS),/system/framework/$(m).jar))
+
+PRODUCT_SYSTEM_SERVER_CLASSPATH := $(subst $(space),:,$(foreach m,$(PRODUCT_SYSTEM_SERVER_JARS),/system/framework/$(m).jar))
+
+DEXPREOPT_BUILD_DIR := $(OUT_DIR)
+DEXPREOPT_PRODUCT_DIR_FULL_PATH := $(PRODUCT_OUT)/dex_bootjars
+DEXPREOPT_PRODUCT_DIR := $(patsubst $(DEXPREOPT_BUILD_DIR)/%,%,$(DEXPREOPT_PRODUCT_DIR_FULL_PATH))
+DEXPREOPT_BOOT_JAR_DIR := system/framework
+DEXPREOPT_BOOT_JAR_DIR_FULL_PATH := $(DEXPREOPT_PRODUCT_DIR_FULL_PATH)/$(DEXPREOPT_BOOT_JAR_DIR)
+
+DEXPREOPT_BOOTCLASSPATH_DEX_LOCATIONS := $(foreach m,$(PRODUCT_BOOTCLASSPATH_JARS),/$(DEXPREOPT_BOOT_JAR_DIR)/$(m).jar)
+DEXPREOPT_BOOTCLASSPATH_DEX_FILES := $(foreach jar,$(DEXPREOPT_BOOTCLASSPATH_DEX_LOCATIONS),$(PRODUCT_OUT)$(jar))
+
+DEFAULT_DEX_PREOPT_BUILT_IMAGE_LOCATION := $(DEXPREOPT_BOOT_JAR_DIR_FULL_PATH)/boot.art
+DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME := $(DEXPREOPT_BOOT_JAR_DIR_FULL_PATH)/$(DEX2OAT_TARGET_ARCH)/boot.art
+
+ifdef TARGET_2ND_ARCH
+  $(TARGET_2ND_ARCH_VAR_PREFIX)DEFAULT_DEX_PREOPT_BUILT_IMAGE_LOCATION := $(DEXPREOPT_BOOT_JAR_DIR_FULL_PATH)/boot.art
+  $(TARGET_2ND_ARCH_VAR_PREFIX)DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME := $(DEXPREOPT_BOOT_JAR_DIR_FULL_PATH)/$($(TARGET_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_ARCH)/boot.art
+endif
+
+# The default value for LOCAL_DEX_PREOPT
+DEX_PREOPT_DEFAULT ?= true
+
+# The default filter for which files go into the system_other image (if it is
+# being used). To bundle everything one should set this to '%'
+SYSTEM_OTHER_ODEX_FILTER ?= \
+    app/% \
+    priv-app/% \
+    product_services/app/% \
+    product_services/priv-app/% \
+    product/app/% \
+    product/priv-app/% \
+
+# The default values for pre-opting: always preopt PIC.
+# Conditional to building on linux, as dex2oat currently does not work on darwin.
+ifeq ($(HOST_OS),linux)
+  WITH_DEXPREOPT ?= true
+  ifeq (eng,$(TARGET_BUILD_VARIANT))
+    # Don't strip for quick development turnarounds.
+    DEX_PREOPT_DEFAULT := nostripping
+    # For an eng build only pre-opt the boot image and system server. This gives reasonable performance
+    # and still allows a simple workflow: building in frameworks/base and syncing.
+    WITH_DEXPREOPT_BOOT_IMG_AND_SYSTEM_SERVER_ONLY ?= true
+  endif
+  # Add mini-debug-info to the boot classpath unless explicitly asked not to.
+  ifneq (false,$(WITH_DEXPREOPT_DEBUG_INFO))
+    PRODUCT_DEX_PREOPT_BOOT_FLAGS += --generate-mini-debug-info
+  endif
+
+  # Non eng linux builds must have preopt enabled so that system server doesn't run as interpreter
+  # only. b/74209329
+  ifeq (,$(filter eng, $(TARGET_BUILD_VARIANT)))
+    ifneq (true,$(WITH_DEXPREOPT))
+      ifneq (true,$(WITH_DEXPREOPT_BOOT_IMG_AND_SYSTEM_SERVER_ONLY))
+        $(call pretty-error, DEXPREOPT must be enabled for user and userdebug builds)
+      endif
+    endif
+  endif
+endif
+
+# Default to debug version to help find bugs.
+# Set USE_DEX2OAT_DEBUG to false for only building non-debug versions.
+ifeq ($(USE_DEX2OAT_DEBUG),false)
+DEX2OAT := $(HOST_OUT_EXECUTABLES)/dex2oat$(HOST_EXECUTABLE_SUFFIX)
+else
+DEX2OAT := $(HOST_OUT_EXECUTABLES)/dex2oatd$(HOST_EXECUTABLE_SUFFIX)
+endif
+
+DEX2OAT_DEPENDENCY += $(DEX2OAT)
+
+# Use the first preloaded-classes file in PRODUCT_COPY_FILES.
+PRELOADED_CLASSES := $(call word-colon,1,$(firstword \
+    $(filter %system/etc/preloaded-classes,$(PRODUCT_COPY_FILES))))
+
+# Use the first dirty-image-objects file in PRODUCT_COPY_FILES.
+DIRTY_IMAGE_OBJECTS := $(call word-colon,1,$(firstword \
+    $(filter %system/etc/dirty-image-objects,$(PRODUCT_COPY_FILES))))
+
+define get-product-default-property
+$(strip \
+  $(eval _prop := $(patsubst $(1)=%,%,$(filter $(1)=%,$(PRODUCT_DEFAULT_PROPERTY_OVERRIDES))))\
+  $(if $(_prop),$(_prop),$(patsubst $(1)=%,%,$(filter $(1)=%,$(PRODUCT_SYSTEM_DEFAULT_PROPERTIES)))))
+endef
+
+DEX2OAT_IMAGE_XMS := $(call get-product-default-property,dalvik.vm.image-dex2oat-Xms)
+DEX2OAT_IMAGE_XMX := $(call get-product-default-property,dalvik.vm.image-dex2oat-Xmx)
+DEX2OAT_XMS := $(call get-product-default-property,dalvik.vm.dex2oat-Xms)
+DEX2OAT_XMX := $(call get-product-default-property,dalvik.vm.dex2oat-Xmx)
+
+ifeq ($(TARGET_ARCH),$(filter $(TARGET_ARCH),mips mips64))
+# MIPS specific overrides.
+# For MIPS the ART image is loaded at a lower address. This causes issues
+# with the image overlapping with memory on the host cross-compiling and
+# building the image. We therefore limit the Xmx value. This isn't done
+# via a property as we want the larger Xmx value if we're running on a
+# MIPS device.
+DEX2OAT_XMX := 128m
+endif
+
+ifeq ($(WRITE_SOONG_VARIABLES),true)
+
+  $(call json_start)
+
+  $(call add_json_bool, DefaultNoStripping,                 $(filter nostripping,$(DEX_PREOPT_DEFAULT)))
+  $(call add_json_list, DisablePreoptModules,               $(DEXPREOPT_DISABLED_MODULES))
+  $(call add_json_bool, OnlyPreoptBootImageAndSystemServer, $(filter true,$(WITH_DEXPREOPT_BOOT_IMG_AND_SYSTEM_SERVER_ONLY)))
+  $(call add_json_bool, DontUncompressPrivAppsDex,          $(filter true,$(DONT_UNCOMPRESS_PRIV_APPS_DEXS)))
+  $(call add_json_list, ModulesLoadedByPrivilegedModules,   $(PRODUCT_LOADED_BY_PRIVILEGED_MODULES))
+  $(call add_json_bool, HasSystemOther,                     $(BOARD_USES_SYSTEM_OTHER_ODEX))
+  $(call add_json_list, PatternsOnSystemOther,              $(SYSTEM_OTHER_ODEX_FILTER))
+  $(call add_json_bool, DisableGenerateProfile,             $(filter false,$(WITH_DEX_PREOPT_GENERATE_PROFILE)))
+  $(call add_json_list, PreoptBootClassPathDexFiles,        $(DEXPREOPT_BOOTCLASSPATH_DEX_FILES))
+  $(call add_json_list, PreoptBootClassPathDexLocations,    $(DEXPREOPT_BOOTCLASSPATH_DEX_LOCATIONS))
+  $(call add_json_list, BootJars,                           $(PRODUCT_BOOT_JARS))
+  $(call add_json_list, SystemServerJars,                   $(PRODUCT_SYSTEM_SERVER_JARS))
+  $(call add_json_list, SystemServerApps,                   $(PRODUCT_SYSTEM_SERVER_APPS))
+  $(call add_json_list, SpeedApps,                          $(PRODUCT_DEXPREOPT_SPEED_APPS))
+  $(call add_json_list, PreoptFlags,                        $(PRODUCT_DEX_PREOPT_DEFAULT_FLAGS))
+  $(call add_json_str,  DefaultCompilerFilter,              $(PRODUCT_DEX_PREOPT_DEFAULT_COMPILER_FILTER))
+  $(call add_json_str,  SystemServerCompilerFilter,         $(PRODUCT_SYSTEM_SERVER_COMPILER_FILTER))
+  $(call add_json_bool, GenerateDmFiles,                    $(PRODUCT_DEX_PREOPT_GENERATE_DM_FILES))
+  $(call add_json_bool, NoDebugInfo,                        $(filter false,$(WITH_DEXPREOPT_DEBUG_INFO)))
+  $(call add_json_bool, AlwaysSystemServerDebugInfo,        $(filter true,$(PRODUCT_SYSTEM_SERVER_DEBUG_INFO)))
+  $(call add_json_bool, NeverSystemServerDebugInfo,         $(filter false,$(PRODUCT_SYSTEM_SERVER_DEBUG_INFO)))
+  $(call add_json_bool, AlwaysOtherDebugInfo,               $(filter true,$(PRODUCT_OTHER_JAVA_DEBUG_INFO)))
+  $(call add_json_bool, NeverOtherDebugInfo,                $(filter false,$(PRODUCT_OTHER_JAVA_DEBUG_INFO)))
+  $(call add_json_list, MissingUsesLibraries,               $(INTERNAL_PLATFORM_MISSING_USES_LIBRARIES))
+  $(call add_json_bool, IsEng,                              $(filter eng,$(TARGET_BUILD_VARIANT)))
+  $(call add_json_bool, SanitizeLite,                       $(SANITIZE_LITE))
+  $(call add_json_bool, DefaultAppImages,                   $(WITH_DEX_PREOPT_APP_IMAGE))
+  $(call add_json_str,  Dex2oatXmx,                         $(DEX2OAT_XMX))
+  $(call add_json_str,  Dex2oatXms,                         $(DEX2OAT_XMS))
+  $(call add_json_str,  EmptyDirectory,                     $(OUT_DIR)/empty)
+
+  $(call add_json_map,  DefaultDexPreoptImageLocation)
+  $(call add_json_str,  $(TARGET_ARCH), $(DEFAULT_DEX_PREOPT_BUILT_IMAGE_LOCATION))
+  ifdef TARGET_2ND_ARCH
+    $(call add_json_str, $(TARGET_2ND_ARCH), $($(TARGET_2ND_ARCH_VAR_PREFIX)DEFAULT_DEX_PREOPT_BUILT_IMAGE_LOCATION))
+  endif
+  $(call end_json_map)
+
+  $(call add_json_map,  CpuVariant)
+  $(call add_json_str,  $(TARGET_ARCH), $(DEX2OAT_TARGET_CPU_VARIANT))
+  ifdef TARGET_2ND_ARCH
+    $(call add_json_str, $(TARGET_2ND_ARCH), $($(TARGET_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_CPU_VARIANT))
+  endif
+  $(call end_json_map)
+
+  $(call add_json_map,  InstructionSetFeatures)
+  $(call add_json_str,  $(TARGET_ARCH), $(DEX2OAT_TARGET_INSTRUCTION_SET_FEATURES))
+  ifdef TARGET_2ND_ARCH
+    $(call add_json_str, $(TARGET_2ND_ARCH), $($(TARGET_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_INSTRUCTION_SET_FEATURES))
+  endif
+  $(call end_json_map)
+
+  $(call add_json_map,  Tools)
+  $(call add_json_str,  Profman,                            $(PROFMAN))
+  $(call add_json_str,  Dex2oat,                            $(DEX2OAT))
+  $(call add_json_str,  Aapt,                               $(AAPT))
+  $(call add_json_str,  SoongZip,                           $(SOONG_ZIP))
+  $(call add_json_str,  Zip2zip,                            $(ZIP2ZIP))
+  $(call add_json_str,  VerifyUsesLibraries,                $(BUILD_SYSTEM)/verify_uses_libraries.sh)
+  $(call add_json_str,  ConstructContext,                   $(BUILD_SYSTEM)/construct_context.sh)
+  $(call end_json_map)
+
+  $(call json_end)
+
+  $(shell mkdir -p $(dir $(DEX_PREOPT_CONFIG)))
+  $(file >$(DEX_PREOPT_CONFIG).tmp,$(json_contents))
+
+  $(shell \
+    if ! cmp -s $(DEX_PREOPT_CONFIG).tmp $(DEX_PREOPT_CONFIG); then \
+      mv $(DEX_PREOPT_CONFIG).tmp $(DEX_PREOPT_CONFIG); \
+    else \
+      rm $(DEX_PREOPT_CONFIG).tmp; \
+    fi)
+endif
+
+# Dummy rule to create dexpreopt.config, it will already have been created
+# by the $(file) call above, but a rule needs to exist to keep the dangling
+# rule check happy.
+$(DEX_PREOPT_CONFIG):
+	@#empty
+
+DEXPREOPT_GEN_DEPS := \
+  $(PROFMAN) \
+  $(DEX2OAT) \
+  $(AAPT) \
+  $(SOONG_ZIP) \
+  $(ZIP2ZIP) \
+  $(BUILD_SYSTEM)/verify_uses_libraries.sh \
+  $(BUILD_SYSTEM)/construct_context.sh \
+
+DEXPREOPT_GEN_DEPS += $(DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME)
+ifdef TARGET_2ND_ARCH
+  ifneq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+    DEXPREOPT_GEN_DEPS += $($(TARGET_2ND_ARCH_VAR_PREFIX)DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME)
+  endif
+endif
diff --git a/core/dex_preopt_libart.mk b/core/dex_preopt_libart.mk
index 1c9ef64..631db0a 100644
--- a/core/dex_preopt_libart.mk
+++ b/core/dex_preopt_libart.mk
@@ -3,77 +3,9 @@
 #
 ####################################
 
-# Default to debug version to help find bugs.
-# Set USE_DEX2OAT_DEBUG to false for only building non-debug versions.
-ifeq ($(USE_DEX2OAT_DEBUG),false)
-DEX2OAT := $(HOST_OUT_EXECUTABLES)/dex2oat$(HOST_EXECUTABLE_SUFFIX)
-else
-DEX2OAT := $(HOST_OUT_EXECUTABLES)/dex2oatd$(HOST_EXECUTABLE_SUFFIX)
-endif
-
-DEX2OAT_DEPENDENCY += $(DEX2OAT)
-
-# Use the first preloaded-classes file in PRODUCT_COPY_FILES.
-PRELOADED_CLASSES := $(call word-colon,1,$(firstword \
-    $(filter %system/etc/preloaded-classes,$(PRODUCT_COPY_FILES))))
-
-# Use the first dirty-image-objects file in PRODUCT_COPY_FILES.
-DIRTY_IMAGE_OBJECTS := $(call word-colon,1,$(firstword \
-    $(filter %system/etc/dirty-image-objects,$(PRODUCT_COPY_FILES))))
-
-define get-product-default-property
-$(strip \
-  $(eval _prop := $(patsubst $(1)=%,%,$(filter $(1)=%,$(PRODUCT_DEFAULT_PROPERTY_OVERRIDES))))\
-  $(if $(_prop),$(_prop),$(patsubst $(1)=%,%,$(filter $(1)=%,$(PRODUCT_SYSTEM_DEFAULT_PROPERTIES)))))
-endef
-
-DEX2OAT_IMAGE_XMS := $(call get-product-default-property,dalvik.vm.image-dex2oat-Xms)
-DEX2OAT_IMAGE_XMX := $(call get-product-default-property,dalvik.vm.image-dex2oat-Xmx)
-DEX2OAT_XMS := $(call get-product-default-property,dalvik.vm.dex2oat-Xms)
-DEX2OAT_XMX := $(call get-product-default-property,dalvik.vm.dex2oat-Xmx)
-
-ifeq ($(TARGET_ARCH),$(filter $(TARGET_ARCH),mips mips64))
-# MIPS specific overrides.
-# For MIPS the ART image is loaded at a lower address. This causes issues
-# with the image overlapping with memory on the host cross-compiling and
-# building the image. We therefore limit the Xmx value. This isn't done
-# via a property as we want the larger Xmx value if we're running on a
-# MIPS device.
-DEX2OAT_XMX := 128m
-endif
-
 ########################################################################
 # The full system boot classpath
 
-# Returns the path to the .odex file
-# $(1): the arch name.
-# $(2): the full path (including file name) of the corresponding .jar or .apk.
-define get-odex-file-path
-$(dir $(2))oat/$(1)/$(basename $(notdir $(2))).odex
-endef
-
-# Returns the full path to the installed .odex file.
-# This handles BOARD_USES_SYSTEM_OTHER_ODEX to install odex files into another
-# partition.
-# $(1): the arch name.
-# $(2): the full install path (including file name) of the corresponding .apk.
-ifeq ($(BOARD_USES_SYSTEM_OTHER_ODEX),true)
-define get-odex-installed-file-path
-$(if $(call install-on-system-other, $(2)),
-  $(call get-odex-file-path,$(1),$(patsubst $(TARGET_OUT)/%,$(TARGET_OUT_SYSTEM_OTHER)/%,$(2))),
-  $(call get-odex-file-path,$(1),$(2)))
-endef
-else
-get-odex-installed-file-path = $(get-odex-file-path)
-endif
-
-# Returns the path to the image file (such as "/system/framework/<arch>/boot.art"
-# $(1): the arch name (such as "arm")
-# $(2): the image location (such as "/system/framework/boot.art")
-define get-image-file-path
-$(dir $(2))$(1)/$(notdir $(2))
-endef
-
 LIBART_TARGET_BOOT_JARS := $(DEXPREOPT_BOOT_JARS_MODULES)
 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)
@@ -164,51 +96,3 @@
 	$(hide) ln -sf /$(DEXPREOPT_BOOT_JAR_DIR)/$(notdir $@) $(SECOND_ARCH_DIR)$(notdir $@)
 
 my_2nd_arch_prefix :=
-
-########################################################################
-# For a single jar or APK
-
-# $(1): the input .jar or .apk file
-# $(2): the output .odex file
-# In the case where LOCAL_ENFORCE_USES_LIBRARIES is true, PRIVATE_DEX2OAT_CLASS_LOADER_CONTEXT
-# contains the normalized path list of the libraries. This makes it easier to conditionally prepend
-# org.apache.http.legacy.impl based on the SDK level if required.
-#
-# Pass --avoid-storing-invocation to make the output deterministics between
-# different products that may have different paths on the command line.
-define dex2oat-one-file
-$(hide) rm -f $(2)
-$(hide) mkdir -p $(dir $(2))
-stored_class_loader_context_libs=$(PRIVATE_DEX2OAT_STORED_CLASS_LOADER_CONTEXT_LIBS) && \
-class_loader_context_arg=--class-loader-context=$(PRIVATE_DEX2OAT_CLASS_LOADER_CONTEXT) && \
-class_loader_context=$(PRIVATE_DEX2OAT_CLASS_LOADER_CONTEXT) && \
-stored_class_loader_context_arg="" && \
-uses_library_names="$(PRIVATE_USES_LIBRARY_NAMES)" && \
-optional_uses_library_names="$(PRIVATE_OPTIONAL_USES_LIBRARY_NAMES)" && \
-aapt_binary="$(AAPT)" && \
-$(if $(filter true,$(PRIVATE_ENFORCE_USES_LIBRARIES)), \
-source build/make/core/verify_uses_libraries.sh "$(1)" && \
-source build/make/core/construct_context.sh "$(PRIVATE_CONDITIONAL_USES_LIBRARIES_HOST)" "$(PRIVATE_CONDITIONAL_USES_LIBRARIES_TARGET)" && \
-,) \
-ANDROID_LOG_TAGS="*:e" $(DEX2OAT) \
-	--avoid-storing-invocation \
-	--runtime-arg -Xms$(DEX2OAT_XMS) --runtime-arg -Xmx$(DEX2OAT_XMX) \
-	$${class_loader_context_arg} \
-	$${stored_class_loader_context_arg} \
-	--boot-image=$(PRIVATE_DEX_PREOPT_IMAGE_LOCATION) \
-	--dex-file=$(1) \
-	--dex-location=$(PRIVATE_DEX_LOCATION) \
-	--oat-file=$(2) \
-	--android-root=$(PRODUCT_OUT)/system \
-	--instruction-set=$($(PRIVATE_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_ARCH) \
-	--instruction-set-variant=$($(PRIVATE_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_CPU_VARIANT) \
-	--instruction-set-features=$($(PRIVATE_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_INSTRUCTION_SET_FEATURES) \
-	--no-generate-debug-info --generate-build-id \
-	--abort-on-hard-verifier-error \
-	--force-determinism \
-	--no-inline-from=core-oj.jar \
-	$(PRIVATE_DEX_PREOPT_FLAGS) \
-	$(PRIVATE_ART_FILE_PREOPT_FLAGS) \
-	$(PRIVATE_PROFILE_PREOPT_FLAGS) \
-	$(GLOBAL_DEXPREOPT_FLAGS)
-endef
diff --git a/core/dex_preopt_libart_boot.mk b/core/dex_preopt_libart_boot.mk
index 70a934c..b31f5a8 100644
--- a/core/dex_preopt_libart_boot.mk
+++ b/core/dex_preopt_libart_boot.mk
@@ -20,8 +20,6 @@
 # 2ND_DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME=out/target/product/generic_x86_64/dex_bootjars/system/framework/x86/boot.art
 # 2ND_LIBART_BOOT_IMAGE=/system/framework/x86/boot.art
 
-$(my_2nd_arch_prefix)DEFAULT_DEX_PREOPT_BUILT_IMAGE_LOCATION := $(DEXPREOPT_BOOT_JAR_DIR_FULL_PATH)/boot.art
-$(my_2nd_arch_prefix)DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME := $(DEXPREOPT_BOOT_JAR_DIR_FULL_PATH)/$($(my_2nd_arch_prefix)DEX2OAT_TARGET_ARCH)/boot.art
 $(my_2nd_arch_prefix)LIBART_BOOT_IMAGE_FILENAME := /$(DEXPREOPT_BOOT_JAR_DIR)/$($(my_2nd_arch_prefix)DEX2OAT_TARGET_ARCH)/boot.art
 
 # The .oat with symbols
@@ -92,11 +90,13 @@
 	@echo "target dex2oat: $@"
 	@mkdir -p $(dir $@)
 	@mkdir -p $(dir $($(PRIVATE_2ND_ARCH_VAR_PREFIX)LIBART_TARGET_BOOT_OAT_UNSTRIPPED))
-	@rm -f $(dir $@)/*.art $(dir $@)/*.oat
+	@rm -f $(dir $@)/*.art $(dir $@)/*.oat $(dir $@)/*.invocation
 	@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
+	@rm -f $(dir $($(PRIVATE_2ND_ARCH_VAR_PREFIX)LIBART_TARGET_BOOT_OAT_UNSTRIPPED))/*.invocation
 	$(hide) $(DEX2OAT_BOOT_IMAGE_LOG_TAGS) $(DEX2OAT) --runtime-arg -Xms$(DEX2OAT_IMAGE_XMS) \
 		--avoid-storing-invocation \
+		--write-invocation-to=$(patsubst %.art,%.invocation,$@) \
 		--runtime-arg -Xmx$(DEX2OAT_IMAGE_XMX) \
 		$(PRIVATE_BOOT_IMAGE_FLAGS) \
 		$(addprefix --dex-file=,$(LIBART_TARGET_BOOT_DEX_FILES)) \
@@ -114,7 +114,7 @@
 		--no-inline-from=core-oj.jar \
 		--abort-on-hard-verifier-error \
 		--abort-on-soft-verifier-error \
-		$(PRODUCT_DEX_PREOPT_BOOT_FLAGS) $(GLOBAL_DEXPREOPT_FLAGS) $(ART_BOOT_IMAGE_EXTRA_ARGS) \
+		$(PRODUCT_DEX_PREOPT_BOOT_FLAGS) $(ART_BOOT_IMAGE_EXTRA_ARGS) \
 		|| ( echo "$(DEX2OAT_FAILURE_MESSAGE)" ; false )
 
 endif
diff --git a/core/dex_preopt_odex_install.mk b/core/dex_preopt_odex_install.mk
index 6a892e2..69790cb 100644
--- a/core/dex_preopt_odex_install.mk
+++ b/core/dex_preopt_odex_install.mk
@@ -3,7 +3,7 @@
 # Output variables: LOCAL_DEX_PREOPT, LOCAL_UNCOMPRESS_DEX, built_odex,
 #                   dexpreopt_boot_jar_module
 
-ifeq (true,$(LOCAL_PREFER_INTEGRITY))
+ifeq (true,$(LOCAL_PREFER_CODE_INTEGRITY))
   LOCAL_UNCOMPRESS_DEX := true
 else
   LOCAL_UNCOMPRESS_DEX :=
@@ -25,24 +25,6 @@
 LOCAL_DEX_PREOPT := $(strip $(LOCAL_DEX_PREOPT))
 ifndef LOCAL_DEX_PREOPT # LOCAL_DEX_PREOPT undefined
   LOCAL_DEX_PREOPT := $(DEX_PREOPT_DEFAULT)
-
-  ifeq ($(filter $(TARGET_OUT)/%,$(my_module_path)),) # Not installed to system.img.
-    # Default to nostripping for non system preopt (enables preopt).
-    # Don't strip in case the oat/vdex version in system ROM doesn't match the one in other
-    # partitions. It needs to be able to fall back to the APK for that case.
-    LOCAL_DEX_PREOPT := nostripping
-  endif
-
-  ifneq (,$(LOCAL_APK_LIBRARIES)) # LOCAL_APK_LIBRARIES not empty
-    LOCAL_DEX_PREOPT := nostripping
-  endif
-endif
-
-ifeq (nostripping,$(LOCAL_DEX_PREOPT))
-  LOCAL_DEX_PREOPT := true
-  LOCAL_STRIP_DEX :=
-else
-  LOCAL_STRIP_DEX := true
 endif
 
 ifeq (false,$(LOCAL_DEX_PREOPT))
@@ -90,38 +72,8 @@
   endif
 endif
 
-ifeq ($(LOCAL_DEX_PREOPT),true)
-  # Don't strip with dexes we explicitly uncompress (dexopt will not store the dex code).
-  ifeq ($(LOCAL_UNCOMPRESS_DEX),true)
-    LOCAL_STRIP_DEX :=
-  endif  # LOCAL_UNCOMPRESS_DEX
-
-  # system_other isn't there for an OTA, so don't strip
-  # if module is on system, and odex is on system_other.
-  ifeq ($(BOARD_USES_SYSTEM_OTHER_ODEX),true)
-    ifneq ($(call install-on-system-other, $(my_module_path)),)
-      LOCAL_STRIP_DEX :=
-    endif  # install-on-system-other
-  endif  # BOARD_USES_SYSTEM_OTHER_ODEX
-
-  # We also don't strip if all dexs are uncompressed (dexopt will not store the dex code),
-  # but that requires to inspect the source file, which is too early at this point (as we
-  # don't know if the source file will actually be used).
-  # See dexpreopt-remove-classes.dex.
-endif  # LOCAL_DEX_PREOPT
-
-built_odex :=
-built_vdex :=
-built_art :=
-installed_odex :=
-installed_vdex :=
-installed_art :=
-built_installed_odex :=
-built_installed_vdex :=
-built_installed_art :=
 my_process_profile :=
 my_profile_is_text_listing :=
-my_generate_dm :=
 
 ifeq (false,$(WITH_DEX_PREOPT_GENERATE_PROFILE))
   LOCAL_DEX_PREOPT_GENERATE_PROFILE := false
@@ -135,7 +87,7 @@
 
   ifneq (,$(wildcard $(LOCAL_DEX_PREOPT_PROFILE)))
     my_process_profile := true
-    my_profile_is_text_listing := false
+    my_profile_is_text_listing :=
   endif
 else
   my_process_profile := $(LOCAL_DEX_PREOPT_GENERATE_PROFILE)
@@ -144,273 +96,72 @@
 endif
 
 ifeq (true,$(my_process_profile))
-
-  ifeq (,$(LOCAL_DEX_PREOPT_APP_IMAGE))
-    LOCAL_DEX_PREOPT_APP_IMAGE := true
-  endif
-
   ifndef LOCAL_DEX_PREOPT_PROFILE
     $(call pretty-error,Must have specified class listing (LOCAL_DEX_PREOPT_PROFILE))
   endif
   ifeq (,$(dex_preopt_profile_src_file))
     $(call pretty-error, Internal error: dex_preopt_profile_src_file must be set)
   endif
-  my_built_profile := $(dir $(LOCAL_BUILT_MODULE))/profile.prof
-  my_dex_location := $(patsubst $(PRODUCT_OUT)%,%,$(LOCAL_INSTALLED_MODULE))
-  # Remove compressed APK extension.
-  my_dex_location := $(patsubst %.gz,%,$(my_dex_location))
-  $(my_built_profile): PRIVATE_BUILT_MODULE := $(dex_preopt_profile_src_file)
-  $(my_built_profile): PRIVATE_DEX_LOCATION := $(my_dex_location)
-  $(my_built_profile): PRIVATE_SOURCE_CLASSES := $(LOCAL_DEX_PREOPT_PROFILE)
-  $(my_built_profile): $(LOCAL_DEX_PREOPT_PROFILE)
-  $(my_built_profile): $(PROFMAN)
-  $(my_built_profile): $(dex_preopt_profile_src_file)
-  ifeq (true,$(my_profile_is_text_listing))
-    # The profile is a test listing of classes (used for framework jars).
-    # We need to generate the actual binary profile before being able to compile.
-    $(my_built_profile):
-	$(hide) mkdir -p $(dir $@)
-	ANDROID_LOG_TAGS="*:e" $(PROFMAN) \
-		--create-profile-from=$(PRIVATE_SOURCE_CLASSES) \
-		--apk=$(PRIVATE_BUILT_MODULE) \
-		--dex-location=$(PRIVATE_DEX_LOCATION) \
-		--reference-profile-file=$@
-  else
-    # The profile is binary profile (used for apps). Run it through profman to
-    # ensure the profile keys match the apk.
-    $(my_built_profile):
-	$(hide) mkdir -p $(dir $@)
-	touch $@
-	ANDROID_LOG_TAGS="*:i" $(PROFMAN) \
-	  --copy-and-update-profile-key \
-		--profile-file=$(PRIVATE_SOURCE_CLASSES) \
-		--apk=$(PRIVATE_BUILT_MODULE) \
-		--dex-location=$(PRIVATE_DEX_LOCATION) \
-		--reference-profile-file=$@ \
-	|| echo "Profile out of date for $(PRIVATE_BUILT_MODULE)"
-  endif
-
-  my_profile_is_text_listing :=
-  dex_preopt_profile_src_file :=
-
-  # Remove compressed APK extension.
-  my_installed_profile := $(patsubst %.gz,%,$(LOCAL_INSTALLED_MODULE)).prof
-
-  # my_installed_profile := $(LOCAL_INSTALLED_MODULE).prof
-  $(eval $(call copy-one-file,$(my_built_profile),$(my_installed_profile)))
-  build_installed_profile:=$(my_built_profile):$(my_installed_profile)
-else
-  build_installed_profile:=
-  my_installed_profile :=
 endif
 
+# If LOCAL_ENFORCE_USES_LIBRARIES is not set, default to true if either of LOCAL_USES_LIBRARIES or
+# LOCAL_OPTIONAL_USES_LIBRARIES are specified.
+ifeq (,$(LOCAL_ENFORCE_USES_LIBRARIES))
+  # Will change the default to true unconditionally in the future.
+  ifneq (,$(LOCAL_OPTIONAL_USES_LIBRARIES))
+    LOCAL_ENFORCE_USES_LIBRARIES := true
+  endif
+  ifneq (,$(LOCAL_USES_LIBRARIES))
+    LOCAL_ENFORCE_USES_LIBRARIES := true
+  endif
+endif
+
+my_dexpreopt_archs :=
+
 ifdef LOCAL_DEX_PREOPT
-
-  dexpreopt_boot_jar_module := $(filter $(DEXPREOPT_BOOT_JARS_MODULES),$(LOCAL_MODULE))
-
-  ifdef dexpreopt_boot_jar_module
-    # For libart, the boot jars' odex files are replaced by $(DEFAULT_DEX_PREOPT_INSTALLED_IMAGE).
-    # We use this installed_odex trick to get boot.art installed.
-    installed_odex := $(DEFAULT_DEX_PREOPT_INSTALLED_IMAGE)
-    # Append the odex for the 2nd arch if we have one.
-    installed_odex += $($(TARGET_2ND_ARCH_VAR_PREFIX)DEFAULT_DEX_PREOPT_INSTALLED_IMAGE)
-  else  # boot jar
-    ifeq ($(LOCAL_MODULE_CLASS),JAVA_LIBRARIES)
-
-      my_module_multilib := $(LOCAL_MULTILIB)
-      # If the module is not an SDK library and it's a system server jar, only preopt the primary arch.
-      my_filtered_lib_name := $(patsubst %.impl,%,$(LOCAL_MODULE))
-      ifeq (,$(filter $(JAVA_SDK_LIBRARIES),$(my_filtered_lib_name)))
-        # For a Java library, by default we build odex for both 1st arch and 2nd arch.
-        # But it can be overridden with "LOCAL_MULTILIB := first".
-        ifneq (,$(filter $(PRODUCT_SYSTEM_SERVER_JARS),$(LOCAL_MODULE)))
-          # For system server jars, we build for only "first".
-          my_module_multilib := first
-        endif
-      endif
-
-      # Only preopt primary arch for translated arch since there is only an image there.
-      ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+  ifeq ($(LOCAL_MODULE_CLASS),JAVA_LIBRARIES)
+    my_module_multilib := $(LOCAL_MULTILIB)
+    # If the module is not an SDK library and it's a system server jar, only preopt the primary arch.
+    my_filtered_lib_name := $(patsubst %.impl,%,$(LOCAL_MODULE))
+    ifeq (,$(filter $(JAVA_SDK_LIBRARIES),$(my_filtered_lib_name)))
+      # For a Java library, by default we build odex for both 1st arch and 2nd arch.
+      # But it can be overridden with "LOCAL_MULTILIB := first".
+      ifneq (,$(filter $(PRODUCT_SYSTEM_SERVER_JARS),$(LOCAL_MODULE)))
+        # For system server jars, we build for only "first".
         my_module_multilib := first
       endif
-
-      # #################################################
-      # Odex for the 1st arch
-      my_2nd_arch_prefix :=
-      include $(BUILD_SYSTEM)/setup_one_odex.mk
-      # #################################################
-      # Odex for the 2nd arch
-      ifdef TARGET_2ND_ARCH
-        ifneq ($(TARGET_TRANSLATE_2ND_ARCH),true)
-          ifneq (first,$(my_module_multilib))
-            my_2nd_arch_prefix := $(TARGET_2ND_ARCH_VAR_PREFIX)
-            include $(BUILD_SYSTEM)/setup_one_odex.mk
-          endif  # my_module_multilib is not first.
-        endif  # TARGET_TRANSLATE_2ND_ARCH not true
-      endif  # TARGET_2ND_ARCH
-      # #################################################
-    else  # must be APPS
-      # The preferred arch
-      my_2nd_arch_prefix := $(LOCAL_2ND_ARCH_VAR_PREFIX)
-      # Save the module multilib since setup_one_odex modifies it.
-      saved_my_module_multilib := $(my_module_multilib)
-      include $(BUILD_SYSTEM)/setup_one_odex.mk
-      my_module_multilib := $(saved_my_module_multilib)
-      ifdef TARGET_2ND_ARCH
-        ifeq ($(my_module_multilib),both)
-          # The non-preferred arch
-          my_2nd_arch_prefix := $(if $(LOCAL_2ND_ARCH_VAR_PREFIX),,$(TARGET_2ND_ARCH_VAR_PREFIX))
-          include $(BUILD_SYSTEM)/setup_one_odex.mk
-        endif  # LOCAL_MULTILIB is both
-      endif  # TARGET_2ND_ARCH
-    endif  # LOCAL_MODULE_CLASS
-  endif  # boot jar
-
-  built_odex := $(strip $(built_odex))
-  built_vdex := $(strip $(built_vdex))
-  built_art := $(strip $(built_art))
-  installed_odex := $(strip $(installed_odex))
-  installed_vdex := $(strip $(installed_vdex))
-  installed_art := $(strip $(installed_art))
-
-  ifdef built_odex
-    ifeq (true,$(my_process_profile))
-      $(built_odex): $(my_built_profile)
-      $(built_odex): PRIVATE_PROFILE_PREOPT_FLAGS := --profile-file=$(my_built_profile)
-    else
-      $(built_odex): PRIVATE_PROFILE_PREOPT_FLAGS :=
     endif
 
-    ifndef LOCAL_DEX_PREOPT_FLAGS
-      LOCAL_DEX_PREOPT_FLAGS := $(DEXPREOPT.$(TARGET_PRODUCT).$(LOCAL_MODULE).CONFIG)
-      ifndef LOCAL_DEX_PREOPT_FLAGS
-        LOCAL_DEX_PREOPT_FLAGS := $(PRODUCT_DEX_PREOPT_DEFAULT_FLAGS)
-      endif
+    # Only preopt primary arch for translated arch since there is only an image there.
+    ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+      my_module_multilib := first
     endif
 
-    my_system_server_compiler_filter := $(PRODUCT_SYSTEM_SERVER_COMPILER_FILTER)
-    ifeq (,$(my_system_server_compiler_filter))
-      my_system_server_compiler_filter := speed
-    endif
-
-    my_default_compiler_filter := $(PRODUCT_DEX_PREOPT_DEFAULT_COMPILER_FILTER)
-    ifeq (,$(my_default_compiler_filter))
-      # If no default compiler filter is specified, default to 'quicken' to save on storage.
-      my_default_compiler_filter := quicken
-    endif
-
-    ifeq (,$(filter --compiler-filter=%, $(LOCAL_DEX_PREOPT_FLAGS)))
-      ifneq (,$(filter $(PRODUCT_SYSTEM_SERVER_JARS),$(LOCAL_MODULE)))
-        # Jars of system server, use the product option if it is set, speed otherwise.
-        LOCAL_DEX_PREOPT_FLAGS += --compiler-filter=$(my_system_server_compiler_filter)
-      else
-        ifneq (,$(filter $(PRODUCT_DEXPREOPT_SPEED_APPS) $(PRODUCT_SYSTEM_SERVER_APPS),$(LOCAL_MODULE)))
-          # Apps loaded into system server, and apps the product default to being compiled with the
-          # 'speed' compiler filter.
-          LOCAL_DEX_PREOPT_FLAGS += --compiler-filter=speed
-        else
-          ifeq (true,$(my_process_profile))
-            # For non system server jars, use speed-profile when we have a profile.
-            LOCAL_DEX_PREOPT_FLAGS += --compiler-filter=speed-profile
-          else
-            LOCAL_DEX_PREOPT_FLAGS += --compiler-filter=$(my_default_compiler_filter)
-          endif
-        endif
-      endif
-    endif
-
-    my_generate_dm := $(PRODUCT_DEX_PREOPT_GENERATE_DM_FILES)
-    ifeq (,$(filter $(LOCAL_DEX_PREOPT_FLAGS),--compiler-filter=verify))
-      # Generating DM files only makes sense for verify, avoid doing for non verify compiler filter APKs.
-      my_generate_dm := false
-    endif
-
-    # No reason to use a dm file if the dex is already uncompressed.
-    ifeq ($(LOCAL_UNCOMPRESS_DEX),true)
-      my_generate_dm := false
-    endif
-
-    ifeq (true,$(my_generate_dm))
-      LOCAL_DEX_PREOPT_FLAGS += --copy-dex-files=false
-      LOCAL_DEX_PREOPT := true
-      LOCAL_STRIP_DEX :=
-      my_built_dm := $(dir $(LOCAL_BUILT_MODULE))generated.dm
-      my_installed_dm := $(patsubst %.apk,%,$(LOCAL_INSTALLED_MODULE)).dm
-      my_copied_vdex := $(dir $(LOCAL_BUILT_MODULE))primary.vdex
-      $(eval $(call copy-one-file,$(built_vdex),$(my_copied_vdex)))
-      $(my_built_dm): PRIVATE_INPUT_VDEX := $(my_copied_vdex)
-      $(my_built_dm): $(my_copied_vdex) $(ZIPTIME)
-	$(hide) mkdir -p $(dir $@)
-	$(hide) rm -f $@
-	$(hide) zip -qD -j -X -9 $@ $(PRIVATE_INPUT_VDEX)
-	$(ZIPTIME) $@
-      $(eval $(call copy-one-file,$(my_built_dm),$(my_installed_dm)))
-    endif
-
-    # By default, emit debug info.
-    my_dexpreopt_debug_info := true
-    # If the global setting suppresses mini-debug-info, disable it.
-    ifeq (false,$(WITH_DEXPREOPT_DEBUG_INFO))
-      my_dexpreopt_debug_info := false
-    endif
-
-    # PRODUCT_SYSTEM_SERVER_DEBUG_INFO overrides WITH_DEXPREOPT_DEBUG_INFO.
-    # PRODUCT_OTHER_JAVA_DEBUG_INFO overrides WITH_DEXPREOPT_DEBUG_INFO.
-    ifneq (,$(filter $(PRODUCT_SYSTEM_SERVER_JARS),$(LOCAL_MODULE)))
-      ifeq (true,$(PRODUCT_SYSTEM_SERVER_DEBUG_INFO))
-        my_dexpreopt_debug_info := true
-      else ifeq (false,$(PRODUCT_SYSTEM_SERVER_DEBUG_INFO))
-        my_dexpreopt_debug_info := false
-      endif
-    else
-      ifeq (true,$(PRODUCT_OTHER_JAVA_DEBUG_INFO))
-        my_dexpreopt_debug_info := true
-      else ifeq (false,$(PRODUCT_OTHER_JAVA_DEBUG_INFO))
-        my_dexpreopt_debug_info := false
-      endif
-    endif
-
-    # Never enable on eng.
-    ifeq (eng,$(filter eng, $(TARGET_BUILD_VARIANT)))
-      my_dexpreopt_debug_info := false
-    endif
-
-    # Add dex2oat flag for debug-info/no-debug-info.
-    ifeq (true,$(my_dexpreopt_debug_info))
-      LOCAL_DEX_PREOPT_FLAGS += --generate-mini-debug-info
-    else ifeq (false,$(my_dexpreopt_debug_info))
-      LOCAL_DEX_PREOPT_FLAGS += --no-generate-mini-debug-info
-    endif
-
-    # Set the compiler reason to 'prebuilt' to identify the oat files produced
-    # during the build, as opposed to compiled on the device.
-    LOCAL_DEX_PREOPT_FLAGS += --compilation-reason=prebuilt
-
-    $(built_odex): PRIVATE_DEX_PREOPT_FLAGS := $(LOCAL_DEX_PREOPT_FLAGS)
-    $(built_vdex): $(built_odex)
-    $(built_art): $(built_odex)
-  endif
-
-  ifneq (true,$(my_generate_dm))
-    # Add the installed_odex to the list of installed files for this module if we aren't generating a
-    # dm file.
-    ALL_MODULES.$(my_register_name).INSTALLED += $(installed_odex)
-    ALL_MODULES.$(my_register_name).INSTALLED += $(installed_vdex)
-    ALL_MODULES.$(my_register_name).INSTALLED += $(installed_art)
-
-    ALL_MODULES.$(my_register_name).BUILT_INSTALLED += $(built_installed_odex)
-    ALL_MODULES.$(my_register_name).BUILT_INSTALLED += $(built_installed_vdex)
-    ALL_MODULES.$(my_register_name).BUILT_INSTALLED += $(built_installed_art)
-
-    # Make sure to install the .odex and .vdex when you run "make <module_name>"
-    $(my_all_targets): $(installed_odex) $(installed_vdex) $(installed_art)
-  else
-    ALL_MODULES.$(my_register_name).INSTALLED += $(my_installed_dm)
-    ALL_MODULES.$(my_register_name).BUILT_INSTALLED += $(my_built_dm) $(my_installed_dm)
-
-    # Make sure to install the .dm when you run "make <module_name>"
-    $(my_all_targets): $(installed_dm)
-  endif
+    # #################################################
+    # Odex for the 1st arch
+    my_dexpreopt_archs += $(TARGET_ARCH)
+    # Odex for the 2nd arch
+    ifdef TARGET_2ND_ARCH
+      ifneq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+        ifneq (first,$(my_module_multilib))
+          my_dexpreopt_archs += $(TARGET_2ND_ARCH)
+        endif  # my_module_multilib is not first.
+      endif  # TARGET_TRANSLATE_2ND_ARCH not true
+    endif  # TARGET_2ND_ARCH
+    # #################################################
+  else  # must be APPS
+    # The preferred arch
+    # Save the module multilib since setup_one_odex modifies it.
+    my_2nd_arch_prefix := $(LOCAL_2ND_ARCH_VAR_PREFIX)
+    my_dexpreopt_archs += $(TARGET_$(my_2nd_arch_prefix)ARCH)
+    ifdef TARGET_2ND_ARCH
+      ifeq ($(my_module_multilib),both)
+        # The non-preferred arch
+        my_2nd_arch_prefix := $(if $(LOCAL_2ND_ARCH_VAR_PREFIX),,$(TARGET_2ND_ARCH_VAR_PREFIX))
+        my_dexpreopt_archs += $(TARGET_$(my_2nd_arch_prefix)ARCH)
+      endif  # LOCAL_MULTILIB is both
+    endif  # TARGET_2ND_ARCH
+  endif  # LOCAL_MODULE_CLASS
 
   # Record dex-preopt config.
   DEXPREOPT.$(LOCAL_MODULE).DEX_PREOPT := $(LOCAL_DEX_PREOPT)
@@ -419,17 +170,104 @@
   DEXPREOPT.$(LOCAL_MODULE).PRIVILEGED_MODULE := $(LOCAL_PRIVILEGED_MODULE)
   DEXPREOPT.$(LOCAL_MODULE).VENDOR_MODULE := $(LOCAL_VENDOR_MODULE)
   DEXPREOPT.$(LOCAL_MODULE).TARGET_ARCH := $(LOCAL_MODULE_TARGET_ARCH)
-  DEXPREOPT.$(LOCAL_MODULE).INSTALLED := $(installed_odex)
   DEXPREOPT.$(LOCAL_MODULE).INSTALLED_STRIPPED := $(LOCAL_INSTALLED_MODULE)
   DEXPREOPT.MODULES.$(LOCAL_MODULE_CLASS) := $(sort \
     $(DEXPREOPT.MODULES.$(LOCAL_MODULE_CLASS)) $(LOCAL_MODULE))
 
+  $(call json_start)
+
+  $(call add_json_str,  Name,                          $(LOCAL_MODULE))
+  $(call add_json_str,  DexLocation,                   $(patsubst $(PRODUCT_OUT)%,%,$(LOCAL_INSTALLED_MODULE)))
+  $(call add_json_str,  BuildPath,                     $(LOCAL_BUILT_MODULE))
+  $(call add_json_str,  DexPath,                       $$1)
+  $(call add_json_str,  ExtrasOutputPath,              $$2)
+  $(call add_json_bool, PreferCodeIntegrity,           $(filter true,$(LOCAL_PREFER_CODE_INTEGRITY)))
+  $(call add_json_bool, Privileged,                    $(filter true,$(LOCAL_PRIVILEGED_MODULE)))
+  $(call add_json_bool, UncompressedDex,               $(filter true,$(LOCAL_UNCOMPRESS_DEX)))
+  $(call add_json_bool, HasApkLibraries,               $(LOCAL_APK_LIBRARIES))
+  $(call add_json_list, PreoptFlags,                   $(LOCAL_DEX_PREOPT_FLAGS))
+  $(call add_json_str,  ProfileClassListing,           $(if $(my_process_profile),$(LOCAL_DEX_PREOPT_PROFILE)))
+  $(call add_json_bool, ProfileIsTextListing,          $(my_profile_is_text_listing))
+  $(call add_json_bool, EnforceUsesLibraries,          $(LOCAL_ENFORCE_USES_LIBRARIES))
+  $(call add_json_list, OptionalUsesLibraries,         $(LOCAL_OPTIONAL_USES_LIBRARIES))
+  $(call add_json_list, UsesLibraries,                 $(LOCAL_USES_LIBRARIES))
+  $(call add_json_map,  LibraryPaths)
+  $(foreach lib,$(sort $(LOCAL_USES_LIBRARIES) $(LOCAL_OPTIONAL_USES_LIBRARIES) org.apache.http.legacy.impl android.hidl.base-V1.0-java android.hidl.manager-V1.0-java),\
+    $(call add_json_str, $(lib), $(call intermediates-dir-for,JAVA_LIBRARIES,$(lib),,COMMON)/javalib.jar))
+  $(call end_json_map)
+  $(call add_json_list, Archs,                         $(my_dexpreopt_archs))
+  $(call add_json_str,  DexPreoptImageLocation,        $(LOCAL_DEX_PREOPT_IMAGE_LOCATION))
+  $(call add_json_bool, PreoptExtractedApk,            $(my_preopt_for_extracted_apk))
+  $(call add_json_bool, NoCreateAppImage,              $(filter false,$(LOCAL_DEX_PREOPT_APP_IMAGE)))
+  $(call add_json_bool, ForceCreateAppImage,           $(filter true,$(LOCAL_DEX_PREOPT_APP_IMAGE)))
+  $(call add_json_bool, PresignedPrebuilt,             $(filter PRESIGNED,$(LOCAL_CERTIFICATE)))
+
+  $(call add_json_bool, NoStripping,                   $(filter nostripping,$(LOCAL_DEX_PREOPT)))
+  $(call add_json_str,  StripInputPath,                $$1)
+  $(call add_json_str,  StripOutputPath,               $$2)
+
+  $(call json_end)
+
+  my_dexpreopt_config := $(intermediates)/dexpreopt.config
+  my_dexpreopt_script := $(intermediates)/dexpreopt.sh
+  my_strip_script := $(intermediates)/strip.sh
+  my_dexpreopt_zip := $(intermediates)/dexpreopt.zip
+
+  $(my_dexpreopt_config): PRIVATE_MODULE := $(LOCAL_MODULE)
+  $(my_dexpreopt_config): PRIVATE_CONTENTS := $(json_contents)
+  $(my_dexpreopt_config):
+	@echo "$(PRIVATE_MODULE) dexpreopt.config"
+	echo -e -n '$(subst $(newline),\n,$(subst ','\'',$(subst \,\\,$(PRIVATE_CONTENTS))))' > $@
+
+  .KATI_RESTAT: $(my_dexpreopt_script) $(my_strip_script)
+  $(my_dexpreopt_script): PRIVATE_MODULE := $(LOCAL_MODULE)
+  $(my_dexpreopt_script): PRIVATE_GLOBAL_CONFIG := $(PRODUCT_OUT)/dexpreopt.config
+  $(my_dexpreopt_script): PRIVATE_MODULE_CONFIG := $(my_dexpreopt_config)
+  $(my_dexpreopt_script): PRIVATE_STRIP_SCRIPT := $(my_strip_script)
+  $(my_dexpreopt_script): .KATI_IMPLICIT_OUTPUTS := $(my_strip_script)
+  $(my_dexpreopt_script): $(DEXPREOPT_GEN)
+  $(my_dexpreopt_script): $(my_dexpreopt_config) $(PRODUCT_OUT)/dexpreopt.config
+	@echo "$(PRIVATE_MODULE) dexpreopt gen"
+	$(DEXPREOPT_GEN) -global $(PRIVATE_GLOBAL_CONFIG) -module $(PRIVATE_MODULE_CONFIG) \
+	-dexpreopt_script $@ -strip_script $(PRIVATE_STRIP_SCRIPT)
+
+  my_dexpreopt_deps := $(my_dex_jar)
+  my_dexpreopt_deps += $(if $(my_process_profile),$(LOCAL_DEX_PREOPT_PROFILE))
+  my_dexpreopt_deps += \
+    $(foreach lib,$(sort $(LOCAL_USES_LIBRARIES) $(LOCAL_OPTIONAL_USES_LIBRARIES) org.apache.http.legacy.impl android.hidl.base-V1.0-java android.hidl.manager-V1.0-java),\
+      $(call intermediates-dir-for,JAVA_LIBRARIES,$(lib),,COMMON)/javalib.jar)
+  my_dexpreopt_deps += $(LOCAL_DEX_PREOPT_IMAGE_LOCATION)
+  # TODO: default boot images
+
+  $(my_dexpreopt_zip): PRIVATE_MODULE := $(LOCAL_MODULE)
+  $(my_dexpreopt_zip): $(my_dexpreopt_deps)
+  $(my_dexpreopt_zip): | $(DEXPREOPT_GEN_DEPS)
+  $(my_dexpreopt_zip): .KATI_DEPFILE := $(my_dexpreopt_zip).d
+  $(my_dexpreopt_zip): PRIVATE_DEX := $(my_dex_jar)
+  $(my_dexpreopt_zip): PRIVATE_SCRIPT := $(my_dexpreopt_script)
+  $(my_dexpreopt_zip): $(my_dexpreopt_script)
+	@echo "$(PRIVATE_MODULE) dexpreopt"
+	bash $(PRIVATE_SCRIPT) $(PRIVATE_DEX) $@
+
+  ifdef LOCAL_POST_INSTALL_CMD
+    # Add a shell command separator
+    LOCAL_POST_INSTALL_CMD += &&
+  endif
+
+  LOCAL_POST_INSTALL_CMD += \
+    for i in $$(zipinfo -1 $(my_dexpreopt_zip)); \
+      do mkdir -p $(PRODUCT_OUT)/$$(dirname $$i); \
+    done && \
+    ( unzip -qo -d $(PRODUCT_OUT) $(my_dexpreopt_zip) 2>&1 | grep -v "zipfile is empty"; exit $${PIPESTATUS[0]} ) || \
+      ( code=$$?; if [ $$code -ne 0 -a $$code -ne 1 ]; then exit $$code; fi )
+
+  $(LOCAL_INSTALLED_MODULE): PRIVATE_POST_INSTALL_CMD := $(LOCAL_POST_INSTALL_CMD)
+  $(LOCAL_INSTALLED_MODULE): $(my_dexpreopt_zip)
+
+  $(my_all_targets): $(my_dexpreopt_zip)
+
+  my_dexpreopt_config :=
+  my_dexpreopt_script :=
+  my_strip_script :=
+  my_dexpreopt_zip :=
 endif # LOCAL_DEX_PREOPT
-
-# Profile doesn't depend on LOCAL_DEX_PREOPT.
-ALL_MODULES.$(my_register_name).INSTALLED += $(my_installed_profile)
-ALL_MODULES.$(my_register_name).BUILT_INSTALLED += $(build_installed_profile)
-
-my_process_profile :=
-
-$(my_all_targets): $(my_installed_profile)
diff --git a/core/goma.mk b/core/goma.mk
index 3787dfd..c265259 100644
--- a/core/goma.mk
+++ b/core/goma.mk
@@ -16,41 +16,18 @@
 
 # Notice: this works only with Google's Goma build infrastructure.
 ifneq ($(filter-out false,$(USE_GOMA)),)
-  # Goma requires a lot of processes and file descriptors.
-  ifeq ($(shell echo $$(($$(ulimit -u) < 2500 || $$(ulimit -n) < 16000))),1)
-    $(warning Max user processes and/or open files are insufficient)
-    ifeq ($(shell uname),Darwin)
-      $(error See go/ma/how-to-use-goma/how-to-use-goma-for-android to relax the limit)
-    else
-      $(error Adjust the limit by ulimit -u and ulimit -n)
-    endif
-  endif
-
   ifdef GOMA_DIR
     goma_dir := $(GOMA_DIR)
   else
     goma_dir := $(HOME)/goma
   endif
-  goma_ctl := $(goma_dir)/goma_ctl.py
   GOMA_CC := $(goma_dir)/gomacc
 
-  $(if $(wildcard $(goma_ctl)),, \
-   $(warning You should have goma in $$GOMA_DIR or $(HOME)/goma) \
-   $(error See go/ma/how-to-use-goma/how-to-use-goma-for-android for detail))
-
   # Append gomacc to existing *_WRAPPER variables so it's possible to
   # use both ccache and gomacc.
   CC_WRAPPER := $(strip $(CC_WRAPPER) $(GOMA_CC))
   CXX_WRAPPER := $(strip $(CXX_WRAPPER) $(GOMA_CC))
   JAVAC_WRAPPER := $(strip $(JAVAC_WRAPPER) $(GOMA_CC))
 
-  # gomacc can start goma client's daemon process automatically, but
-  # it is safer and faster to start up it beforehand. We run this as a
-  # background process so this won't slow down the build.
-  ifndef NOSTART_GOMA
-    $(shell ( $(goma_ctl) ensure_start ) &> /dev/null &)
-  endif
-
-  goma_ctl :=
   goma_dir :=
 endif
diff --git a/core/java.mk b/core/java.mk
index 932a421..e564db2 100644
--- a/core/java.mk
+++ b/core/java.mk
@@ -109,7 +109,7 @@
 
 aidl_preprocess_import :=
 ifdef LOCAL_SDK_VERSION
-ifneq ($(filter current system_current test_current core_current, $(LOCAL_SDK_VERSION)$(TARGET_BUILD_APPS)),)
+ifneq ($(filter current system_current test_current core_current, $(LOCAL_SDK_VERSION)$(TARGET_BUILD_APPS_USE_PREBUILT_SDK)),)
   # LOCAL_SDK_VERSION is current and no TARGET_BUILD_APPS
   aidl_preprocess_import := $(TARGET_OUT_COMMON_INTERMEDIATES)/framework.aidl
 else
diff --git a/core/java_common.mk b/core/java_common.mk
index f4c47c8..ac26e5e 100644
--- a/core/java_common.mk
+++ b/core/java_common.mk
@@ -29,7 +29,7 @@
     LOCAL_JAVA_LANGUAGE_VERSION := 1.7
   else ifneq (,$(filter $(LOCAL_SDK_VERSION), $(TARGET_SDK_VERSIONS_WITHOUT_JAVA_19_SUPPORT)))
     LOCAL_JAVA_LANGUAGE_VERSION := 1.8
-  else ifneq (,$(LOCAL_SDK_VERSION)$(TARGET_BUILD_APPS))
+  else ifneq (,$(LOCAL_SDK_VERSION)$(TARGET_BUILD_APPS_USE_PREBUILT_SDK))
     # TODO(ccross): allow 1.9 for current and unbundled once we have SDK system modules
     LOCAL_JAVA_LANGUAGE_VERSION := 1.8
   else
@@ -276,7 +276,7 @@
       my_system_modules := $(DEFAULT_SYSTEM_MODULES)
     endif  # LOCAL_NO_STANDARD_LIBRARIES
 
-    ifneq (,$(TARGET_BUILD_APPS))
+    ifneq (,$(TARGET_BUILD_APPS_USE_PREBUILT_SDK))
       sdk_libs := $(foreach lib_name,$(LOCAL_SDK_LIBRARIES),$(call resolve-prebuilt-sdk-module,system_current,$(lib_name)))
     else
       # When SDK libraries are referenced from modules built without SDK, provide the all APIs to them
@@ -291,7 +291,7 @@
              Choices are: $(TARGET_AVAILABLE_SDK_VERSIONS))
     endif
 
-    ifneq (,$(TARGET_BUILD_APPS)$(filter-out %current,$(LOCAL_SDK_VERSION)))
+    ifneq (,$(TARGET_BUILD_APPS_USE_PREBUILT_SDK)$(filter-out %current,$(LOCAL_SDK_VERSION)))
       # TARGET_BUILD_APPS mode or numbered SDK. Use prebuilt modules.
       sdk_module := $(call resolve-prebuilt-sdk-module,$(LOCAL_SDK_VERSION))
       sdk_libs := $(foreach lib_name,$(LOCAL_SDK_LIBRARIES),$(call resolve-prebuilt-sdk-module,$(LOCAL_SDK_VERSION),$(lib_name)))
@@ -333,7 +333,7 @@
   # related classes to be present. This change adds stubs needed for
   # javac to compile lambdas.
   ifneq ($(LOCAL_NO_STANDARD_LIBRARIES),true)
-    ifdef TARGET_BUILD_APPS
+    ifdef TARGET_BUILD_APPS_USE_PREBUILT_SDK
       full_java_bootclasspath_libs += $(call java-lib-header-files,sdk-core-lambda-stubs)
     else
       full_java_bootclasspath_libs += $(call java-lib-header-files,core-lambda-stubs)
diff --git a/core/java_library.mk b/core/java_library.mk
index e4e51d8..3e54b0e 100644
--- a/core/java_library.mk
+++ b/core/java_library.mk
@@ -50,6 +50,8 @@
 LOCAL_EMMA_INSTRUMENT := false
 endif # EMMA_INSTRUMENT
 
+my_dex_jar := $(common_javalib.jar)
+
 #################################
 include $(BUILD_SYSTEM)/java.mk
 #################################
@@ -90,13 +92,13 @@
 
 # For libart boot jars, we don't have .odex files.
 else # ! boot jar
-$(built_odex): PRIVATE_MODULE := $(LOCAL_MODULE)
-# Use pattern rule - we may have multiple built odex files.
-$(built_odex) : $(dir $(LOCAL_BUILT_MODULE))% : $(common_javalib.jar)
-	@echo "Dexpreopt Jar: $(PRIVATE_MODULE) ($@)"
-	$(call dexpreopt-one-file,$<,$@)
 
-$(eval $(call dexpreopt-copy-jar,$(common_javalib.jar),$(LOCAL_BUILT_MODULE),$(LOCAL_STRIP_DEX)))
+$(LOCAL_BUILT_MODULE): PRIVATE_STRIP_SCRIPT := $(intermediates)/strip.sh
+$(LOCAL_BUILT_MODULE): $(intermediates)/strip.sh
+$(LOCAL_BUILT_MODULE): | $(DEXPREOPT_GEN_DEPS)
+$(LOCAL_BUILT_MODULE): .KATI_DEPFILE := $(LOCAL_BUILT_MODULE).d
+$(LOCAL_BUILT_MODULE): $(common_javalib.jar)
+	$(PRIVATE_STRIP_SCRIPT) $< $@
 
 endif # ! boot jar
 
diff --git a/core/java_renderscript.mk b/core/java_renderscript.mk
index 406d679..13a6f8e 100644
--- a/core/java_renderscript.mk
+++ b/core/java_renderscript.mk
@@ -82,8 +82,8 @@
 $(rs_generated_src_jar): $(renderscript_sources_fullpath) $(LOCAL_RENDERSCRIPT_CC) $(SOONG_ZIP)
 	$(transform-renderscripts-to-java-and-bc)
 
-# include the dependency files (.d/.P) generated by llvm-rs-cc.
-$(call include-depfile,$(rs_generated_src_jar).P,$(rs_generated_src_jar))
+# include the dependency files (.d) generated by llvm-rs-cc.
+$(call include-depfile,$(rs_generated_src_jar).d,$(rs_generated_src_jar))
 
 ifneq ($(LOCAL_RENDERSCRIPT_COMPATIBILITY),)
 
diff --git a/core/main.mk b/core/main.mk
index 9fd1c35..0a99e7c 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -80,7 +80,7 @@
 ifeq ($(strip $(HAS_BUILD_NUMBER)),false)
   # BUILD_NUMBER has a timestamp in it, which means that
   # it will change every time.  Pick a stable value.
-  FILE_NAME_TAG := eng.$(USER)
+  FILE_NAME_TAG := eng.$(BUILD_USERNAME)
 else
   FILE_NAME_TAG := $(file <$(BUILD_NUMBER_FILE))
 endif
@@ -1089,6 +1089,12 @@
   static_whitelist_patterns := $(TARGET_OUT_FAKE)/% $(HOST_OUT)/%
   # RROs become REQUIRED by the source module, but are always placed on the vendor partition.
   static_whitelist_patterns += %__auto_generated_rro.apk
+  # $(PRODUCT_OUT)/apex is where shared libraries in APEXes get installed.
+  # The path can be considered as a fake path, as the shared libraries
+  # are installed there just to have symbols files for them under
+  # $(PRODUCT_OUT)/symbols/apex for debugging purpose. The /apex directory
+  # is never compiled into a filesystem image.
+  static_whitelist_patterns += $(PRODUCT_OUT)/apex/%
   ifeq (true,$(BOARD_USES_SYSTEM_OTHER_ODEX))
     # Allow system_other odex space optimization.
     static_whitelist_patterns += \
@@ -1096,6 +1102,13 @@
       $(TARGET_OUT_SYSTEM_OTHER)/%.vdex \
       $(TARGET_OUT_SYSTEM_OTHER)/%.art
   endif
+
+CERTIFICATE_VIOLATION_MODULES_FILENAME := $(PRODUCT_OUT)/certificate_violation_modules.txt
+$(CERTIFICATE_VIOLATION_MODULES_FILENAME):
+	rm -f $@
+	$(foreach m,$(sort $(CERTIFICATE_VIOLATION_MODULES)), echo $(m) >> $@;)
+$(call dist-for-goals,droidcore,$(CERTIFICATE_VIOLATION_MODULES_FILENAME))
+
   all_offending_files :=
   $(foreach makefile,$(ARTIFACT_PATH_REQUIREMENT_PRODUCTS),\
     $(eval requirements := $(PRODUCTS.$(makefile).ARTIFACT_PATH_REQUIREMENTS)) \
diff --git a/core/package_internal.mk b/core/package_internal.mk
index 9327587..c657f2e 100644
--- a/core/package_internal.mk
+++ b/core/package_internal.mk
@@ -87,6 +87,23 @@
   LOCAL_RESOURCE_DIR := $(foreach d,$(LOCAL_RESOURCE_DIR),$(call clean-path,$(d)))
 endif
 
+# If LOCAL_MODULE matches a rule in PRODUCT_MANIFEST_PACKAGE_NAME_OVERRIDES,
+# override the manfest package name by the (first) rule matched
+override_manifest_name := $(strip $(word 1,\
+  $(foreach rule,$(PRODUCT_MANIFEST_PACKAGE_NAME_OVERRIDES),\
+    $(eval _pkg_name_pat := $(call word-colon,1,$(rule)))\
+    $(eval _manifest_name_pat := $(call word-colon,2,$(rule)))\
+    $(if $(filter $(_pkg_name_pat),$(LOCAL_MODULE)),\
+      $(patsubst $(_pkg_name_pat),$(_manifest_name_pat),$(LOCAL_MODULE))\
+     )\
+   )\
+))
+
+ifneq (,$(override_manifest_name))
+# Note: this can override LOCAL_MANFEST_PACKAGE_NAME value set in Android.mk
+LOCAL_MANIFEST_PACKAGE_NAME := $(override_manifest_name)
+endif
+
 include $(BUILD_SYSTEM)/force_aapt2.mk
 
 # Process Support Library dependencies.
@@ -309,23 +326,6 @@
 
 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_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
-
 # If the module is a compressed module, we don't pre-opt it because its final
 # installation location will be the data partition.
 ifdef LOCAL_COMPRESSED_MODULE
@@ -432,6 +432,8 @@
 
 endif  # need_compile_res
 
+my_dex_jar := $(intermediates.COMMON)/dex.jar
+
 called_from_package_internal := true
 #################################
 include $(BUILD_SYSTEM)/java.mk
@@ -458,34 +460,6 @@
 $(LOCAL_INTERMEDIATE_TARGETS): \
     PRIVATE_ANDROID_MANIFEST := $(full_android_manifest)
 
-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): $(data_binding_stamp)
-$(java_source_list_file): $(data_binding_stamp)
-$(full_classes_compiled_jar): $(data_binding_stamp)
-endif  # LOCAL_DATA_BINDING
-
 framework_res_package_export :=
 
 ifneq ($(LOCAL_NO_STANDARD_LIBRARIES),true)
@@ -494,7 +468,7 @@
 # resources.
 ifeq ($(LOCAL_SDK_RES_VERSION),core_current)
 # core_current doesn't contain any framework resources.
-else ifneq ($(filter-out current system_current test_current,$(LOCAL_SDK_RES_VERSION))$(if $(TARGET_BUILD_APPS),$(filter current system_current test_current,$(LOCAL_SDK_RES_VERSION))),)
+else ifneq ($(filter-out current system_current test_current,$(LOCAL_SDK_RES_VERSION))$(if $(TARGET_BUILD_APPS_USE_PREBUILT_SDK),$(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 := \
     $(call resolve-prebuilt-sdk-jar-path,$(LOCAL_SDK_RES_VERSION))
@@ -561,6 +535,7 @@
 ifeq ($(dir $(strip $(LOCAL_CERTIFICATE))),./)
     LOCAL_CERTIFICATE := $(dir $(DEFAULT_SYSTEM_DEV_CERTIFICATE))$(LOCAL_CERTIFICATE)
 endif
+include $(BUILD_SYSTEM)/app_certificate_validate.mk
 private_key := $(LOCAL_CERTIFICATE).pk8
 certificate := $(LOCAL_CERTIFICATE).x509.pem
 additional_certificates := $(foreach c,$(LOCAL_ADDITIONAL_CERTIFICATES), $(c).x509.pem $(c).pk8)
@@ -631,6 +606,12 @@
 ifneq ($(BUILD_PLATFORM_ZIP),)
 $(LOCAL_BUILT_MODULE) : .KATI_IMPLICIT_OUTPUTS := $(dir $(LOCAL_BUILT_MODULE))package.dex.apk
 endif
+ifdef LOCAL_DEX_PREOPT
+$(LOCAL_BUILT_MODULE) : PRIVATE_STRIP_SCRIPT := $(intermediates)/strip.sh
+$(LOCAL_BUILT_MODULE) : $(intermediates)/strip.sh
+$(LOCAL_BUILT_MODULE) : | $(DEXPREOPT_GEN_DEPS)
+$(LOCAL_BUILT_MODULE): .KATI_DEPFILE := $(LOCAL_BUILT_MODULE).d
+endif
 $(LOCAL_BUILT_MODULE):
 	@echo "target Package: $(PRIVATE_MODULE) ($@)"
 	rm -rf $@.parts
@@ -670,9 +651,8 @@
 	@# Keep a copy of apk with classes.dex unstripped
 	$(hide) cp -f $@ $(dir $@)package.dex.apk
 endif  # BUILD_PLATFORM_ZIP
-ifdef LOCAL_STRIP_DEX
-	$(call dexpreopt-remove-classes.dex,$@)
-endif
+	mv -f $@ $@.tmp
+	$(PRIVATE_STRIP_SCRIPT) $@.tmp $@
 endif  # LOCAL_DEX_PREOPT
 	$(sign-package)
 ifdef LOCAL_COMPRESSED_MODULE
@@ -739,23 +719,13 @@
 endif
 
 ###############################
-## Rule to build the odex file
+## Rule to build a jar containing dex files to dexpreopt without waiting for
+## the APK
 ifdef LOCAL_DEX_PREOPT
-$(built_odex): PRIVATE_DEX_FILE := $(built_dex)
-ifeq (true, $(LOCAL_UNCOMPRESS_DEX))
-$(built_odex): $(ZIP2ZIP) $(ZIPALIGN)
-endif
-# Use pattern rule - we may have multiple built odex files.
-$(built_odex) : $(dir $(LOCAL_BUILT_MODULE))% : $(built_dex)
+  $(my_dex_jar): PRIVATE_DEX_FILE := $(built_dex)
+  $(my_dex_jar): $(built_dex)
 	$(hide) mkdir -p $(dir $@) && rm -f $@
 	$(call create-dex-jar,$@,$(PRIVATE_DEX_FILE))
-ifeq (true, $(LOCAL_UNCOMPRESS_DEX))
-	$(uncompress-dexs)
-	$(align-package)
-endif
-	$(hide) mv $@ $@.input
-	$(call dexpreopt-one-file,$@.input,$@)
-	$(hide) rm $@.input
 endif
 
 ###############################
diff --git a/core/prebuilt_internal.mk b/core/prebuilt_internal.mk
index a4b58fc..960d8d1 100644
--- a/core/prebuilt_internal.mk
+++ b/core/prebuilt_internal.mk
@@ -306,6 +306,8 @@
   $(built_module) : PRIVATE_CERTIFICATE := $(LOCAL_CERTIFICATE).x509.pem
 endif
 
+include $(BUILD_SYSTEM)/app_certificate_validate.mk
+
 # Disable dex-preopt of prebuilts to save space, if requested.
 ifndef LOCAL_DEX_PREOPT
 ifeq ($(DONT_DEXPREOPT_PREBUILTS),true)
@@ -319,6 +321,8 @@
 LOCAL_DEX_PREOPT := false
 endif
 
+my_dex_jar := $(my_prebuilt_src_file)
+
 #######################################
 # defines built_odex along with rule to install odex
 include $(BUILD_SYSTEM)/dex_preopt_odex_install.mk
@@ -342,7 +346,6 @@
 embedded_prebuilt_jni_libs :=
 endif
 $(built_module): PRIVATE_EMBEDDED_JNI_LIBS := $(embedded_prebuilt_jni_libs)
-$(built_module): $(ZIP2ZIP)
 
 ifdef LOCAL_COMPRESSED_MODULE
 $(built_module) : $(MINIGZIP)
@@ -356,7 +359,15 @@
 ifneq ($(BUILD_PLATFORM_ZIP),)
 $(built_module) : .KATI_IMPLICIT_OUTPUTS := $(dir $(LOCAL_BUILT_MODULE))package.dex.apk
 endif
-$(built_module) : $(my_prebuilt_src_file) | $(ZIPALIGN) $(SIGNAPK_JAR)
+ifneq ($(LOCAL_CERTIFICATE),PRESIGNED)
+ifdef LOCAL_DEX_PREOPT
+$(built_module) : PRIVATE_STRIP_SCRIPT := $(intermediates)/strip.sh
+$(built_module) : $(intermediates)/strip.sh
+$(built_module) : | $(DEXPREOPT_GEN_DEPS)
+$(built_module) : .KATI_DEPFILE := $(built_module).d
+endif
+endif
+$(built_module) : $(my_prebuilt_src_file) | $(ZIPALIGN) $(ZIP2ZIP) $(SIGNAPK_JAR)
 	$(transform-prebuilt-to-target)
 	$(uncompress-prebuilt-embedded-jni-libs)
 ifeq (true, $(LOCAL_UNCOMPRESS_DEX))
@@ -380,9 +391,8 @@
 	$(run-appcompat)
 endif  # module_run_appcompat
 ifdef LOCAL_DEX_PREOPT
-ifdef LOCAL_STRIP_DEX
-	$(call dexpreopt-remove-classes.dex,$@)
-endif  # LOCAL_STRIP_DEX
+	mv -f $@ $@.tmp
+	$(PRIVATE_STRIP_SCRIPT) $@.tmp $@
 endif  # LOCAL_DEX_PREOPT
 	$(sign-package)
 	# No need for align-package because sign-package takes care of alignment
@@ -394,20 +404,6 @@
 endif  # LOCAL_COMPRESSED_MODULE
 endif  # ! LOCAL_REPLACE_PREBUILT_APK_INSTALLED
 
-###############################
-## Rule to build the odex file.
-# In case we don't strip the built module, use it, as dexpreopt
-# can do optimizations based on whether the built module only
-# contains uncompressed dex code.
-ifdef LOCAL_DEX_PREOPT
-ifndef LOCAL_STRIP_DEX
-$(built_odex) : $(built_module)
-	$(call dexpreopt-one-file,$<,$@)
-else
-$(built_odex) : $(my_prebuilt_src_file)
-	$(call dexpreopt-one-file,$<,$@)
-endif
-endif
 
 ###############################
 ## Install split apks.
@@ -450,6 +446,7 @@
 endif # LOCAL_PACKAGE_SPLITS
 
 else ifeq ($(prebuilt_module_is_dex_javalib),true)  # ! LOCAL_MODULE_CLASS != APPS
+my_dex_jar := $(my_prebuilt_src_file)
 # This is a target shared library, i.e. a jar with classes.dex.
 #######################################
 # defines built_odex along with rule to install odex
@@ -464,13 +461,14 @@
 
 # For libart boot jars, we don't have .odex files.
 else # ! boot jar
-$(built_odex): PRIVATE_MODULE := $(LOCAL_MODULE)
-# Use pattern rule - we may have multiple built odex files.
-$(built_odex) : $(dir $(LOCAL_BUILT_MODULE))% : $(my_prebuilt_src_file)
-	@echo "Dexpreopt Jar: $(PRIVATE_MODULE) ($@)"
-	$(call dexpreopt-one-file,$<,$@)
 
-$(eval $(call dexpreopt-copy-jar,$(my_prebuilt_src_file),$(built_module),$(LOCAL_STRIP_DEX)))
+$(built_module): PRIVATE_STRIP_SCRIPT := $(intermediates)/strip.sh
+$(built_module): $(intermediates)/strip.sh
+$(built_module): | $(DEXPREOPT_GEN_DEPS)
+$(built_module): .KATI_DEPFILE := $(built_module).d
+$(built_module): $(my_prebuilt_src_file)
+	$(PRIVATE_STRIP_SCRIPT) $< $@
+
 endif # boot jar
 else # ! LOCAL_DEX_PREOPT
 $(built_module) : $(my_prebuilt_src_file)
diff --git a/core/product.mk b/core/product.mk
index 8497b28..2d7ace2 100644
--- a/core/product.mk
+++ b/core/product.mk
@@ -204,6 +204,8 @@
     PRODUCT_COMPATIBLE_PROPERTY_OVERRIDE \
     PRODUCT_ACTIONABLE_COMPATIBLE_PROPERTY_DISABLE \
     PRODUCT_ENFORCE_ARTIFACT_PATH_REQUIREMENTS \
+    PRODUCT_ENFORCE_ARTIFACT_SYSTEM_CERTIFICATE_REQUIREMENT \
+    PRODUCT_ARTIFACT_SYSTEM_CERTIFICATE_REQUIREMENT_WHITELIST \
     PRODUCT_ARTIFACT_PATH_REQUIREMENT_HINT \
     PRODUCT_ARTIFACT_PATH_REQUIREMENT_WHITELIST \
     PRODUCT_USE_DYNAMIC_PARTITION_SIZE \
@@ -213,6 +215,7 @@
     PRODUCT_RETROFIT_DYNAMIC_PARTITIONS \
     PRODUCT_OTA_ENFORCE_VINTF_KERNEL_REQUIREMENTS \
     PRODUCT_XOM_EXCLUDE_PATHS \
+    PRODUCT_MANIFEST_PACKAGE_NAME_OVERRIDES \
 
 define dump-product
 $(info ==== $(1) ====)\
diff --git a/core/product_config.mk b/core/product_config.mk
index ac7fe91..c58405c 100644
--- a/core/product_config.mk
+++ b/core/product_config.mk
@@ -175,15 +175,9 @@
 include $(BUILD_SYSTEM)/product.mk
 include $(BUILD_SYSTEM)/device.mk
 
-ifneq ($(strip $(TARGET_BUILD_APPS)),)
-# An unbundled app build needs only the core product makefiles.
-all_product_configs := $(call get-product-makefiles,\
-    $(SRC_TARGET_DIR)/product/AndroidProducts.mk)
-else
 # Read in all of the product definitions specified by the AndroidProducts.mk
 # files in the tree.
 all_product_configs := $(get-all-product-makefiles)
-endif
 
 all_named_products :=
 
@@ -352,6 +346,11 @@
 # used for adding properties to default.prop
 PRODUCT_DEFAULT_PROPERTY_OVERRIDES := \
     $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_DEFAULT_PROPERTY_OVERRIDES))
+
+$(foreach rule,$(PRODUCT_MANIFEST_PACKAGE_NAME_OVERRIDES),\
+    $(if $(filter 2,$(words $(subst :,$(space),$(rule)))),,\
+        $(error Rule "$(rule)" in PRODUCT_MANIFEST_PACKAGE_NAME_OVERRIDE is not <module_name>:<manifest_name>)))
+
 .KATI_READONLY := PRODUCT_DEFAULT_PROPERTY_OVERRIDES
 
 # A list of property assignments, like "key = value", with zero or more
@@ -368,6 +367,11 @@
     $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_PRODUCT_PROPERTIES))
 .KATI_READONLY := PRODUCT_PRODUCT_PROPERTIES
 
+ENFORCE_SYSTEM_CERTIFICATE := \
+    $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_ENFORCE_ARTIFACT_SYSTEM_CERTIFICATE_REQUIREMENT)
+
+ENFORCE_SYSTEM_CERTIFICATE_WHITELIST := \
+    $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_ARTIFACT_SYSTEM_CERTIFICATE_REQUIREMENT_WHITELIST))
 
 # A list of property assignments, like "key = value", with zero or more
 # whitespace characters on either side of the '='.
@@ -555,3 +559,10 @@
 # set this variable to prevent OTA failures.
 PRODUCT_OTA_ENFORCE_VINTF_KERNEL_REQUIREMENTS := \
     $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_OTA_ENFORCE_VINTF_KERNEL_REQUIREMENTS))
+
+# List of <module_name>:<manifest_name> pairs to override the manifest package name
+# of a module <module_name> to <manifest_name>. Patterns can be used as in
+# com.android.%:com.acme.android.%.release
+PRODUCT_MANIFEST_PACKAGE_NAME_OVERRIDES := \
+    $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_MANIFEST_PACKAGE_NAME_OVERRIDES))
+.KATI_READONLY := PRODUCT_MANIFEST_PACKAGE_NAME_OVERRIDES
diff --git a/core/setup_one_odex.mk b/core/setup_one_odex.mk
deleted file mode 100644
index 92f58b2..0000000
--- a/core/setup_one_odex.mk
+++ /dev/null
@@ -1,140 +0,0 @@
-#
-# Copyright (C) 2014 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.
-#
-
-# Set up variables and dependency for one odex file
-# Input variables: my_2nd_arch_prefix
-# Output(modified) variables: built_odex, installed_odex, built_installed_odex
-
-my_built_odex := $(call get-odex-file-path,$($(my_2nd_arch_prefix)DEX2OAT_TARGET_ARCH),$(LOCAL_BUILT_MODULE))
-ifdef LOCAL_DEX_PREOPT_IMAGE_LOCATION
-my_dex_preopt_image_location := $(LOCAL_DEX_PREOPT_IMAGE_LOCATION)
-else
-my_dex_preopt_image_location := $($(my_2nd_arch_prefix)DEFAULT_DEX_PREOPT_BUILT_IMAGE_LOCATION)
-endif
-my_dex_preopt_image_filename := $(call get-image-file-path,$($(my_2nd_arch_prefix)DEX2OAT_TARGET_ARCH),$(my_dex_preopt_image_location))
-
-# If LOCAL_ENFORCE_USES_LIBRARIES is not set, default to true if either of LOCAL_USES_LIBRARIES or
-# LOCAL_OPTIONAL_USES_LIBRARIES are specified.
-ifeq (,$(LOCAL_ENFORCE_USES_LIBRARIES))
-# Will change the default to true unconditionally in the future.
-ifneq (,$(LOCAL_OPTIONAL_USES_LIBRARIES))
-LOCAL_ENFORCE_USES_LIBRARIES := true
-endif
-ifneq (,$(LOCAL_USES_LIBRARIES))
-LOCAL_ENFORCE_USES_LIBRARIES := true
-endif
-endif
-
-my_uses_libraries := $(LOCAL_USES_LIBRARIES)
-my_optional_uses_libraries := $(LOCAL_OPTIONAL_USES_LIBRARIES)
-my_missing_uses_libraries := $(INTERNAL_PLATFORM_MISSING_USES_LIBRARIES)
-
-# If we have either optional or required uses-libraries, set up the class loader context
-# accordingly.
-my_lib_names :=
-my_optional_lib_names :=
-my_filtered_optional_uses_libraries :=
-my_system_dependencies :=
-my_stored_preopt_class_loader_context_libs :=
-my_conditional_uses_libraries_host :=
-my_conditional_uses_libraries_target :=
-
-ifneq (true,$(LOCAL_ENFORCE_USES_LIBRARIES))
-  # Pass special class loader context to skip the classpath and collision check.
-  # This will get removed once LOCAL_USES_LIBRARIES is enforced.
-  # Right now LOCAL_USES_LIBRARIES is opt in, for the case where it's not specified we still default
-  # to the &.
-  my_dex_preopt_class_loader_context := \&
-else
-  # Compute the filtered optional uses libraries by removing ones that are not supposed to exist.
-  my_filtered_optional_uses_libraries := \
-      $(filter-out $(my_missing_uses_libraries), $(my_optional_uses_libraries))
-  my_filtered_uses_libraries := $(my_uses_libraries) $(my_filtered_optional_uses_libraries)
-
-  # These are the ones we are verifying in the make rule, use the unfiltered libraries.
-  my_lib_names := $(my_uses_libraries)
-  my_optional_lib_names := $(my_optional_uses_libraries)
-
-  # Calculate system build dependencies based on the filtered libraries.
-  my_intermediate_libs := $(foreach lib_name, $(my_lib_names) $(my_filtered_optional_uses_libraries), \
-    $(call intermediates-dir-for,JAVA_LIBRARIES,$(lib_name),,COMMON)/javalib.jar)
-  my_dex_preopt_system_dependencies := $(my_intermediate_libs)
-  my_dex_preopt_class_loader_context := $(call normalize-path-list,$(my_intermediate_libs))
-
-  # The class loader context checksums are filled in by dex2oat.
-  my_stored_preopt_class_loader_context_libs := $(call normalize-path-list, \
-      $(foreach lib_name,$(my_filtered_uses_libraries),/system/framework/$(lib_name).jar))
-
-  # Fix up org.apache.http.legacy.impl since it should be org.apache.http.legacy in the manifest.
-  my_lib_names := $(patsubst org.apache.http.legacy.impl,org.apache.http.legacy,$(my_lib_names))
-  my_optional_lib_names := $(patsubst org.apache.http.legacy.impl,org.apache.http.legacy,$(my_optional_lib_names))
-  ifeq (,$(filter org.apache.http.legacy,$(my_lib_names) $(my_optional_lib_names)))
-    my_conditional_uses_libraries_host := $(call intermediates-dir-for,JAVA_LIBRARIES,org.apache.http.legacy.impl,,COMMON)/javalib.jar
-    my_conditional_uses_libraries_target := /system/framework/org.apache.http.legacy.impl.jar
-  endif
-endif
-
-$(my_built_odex): $(AAPT)
-$(my_built_odex): $(my_conditional_uses_libraries_host)
-$(my_built_odex): $(my_dex_preopt_system_dependencies)
-$(my_built_odex): PRIVATE_ENFORCE_USES_LIBRARIES := $(LOCAL_ENFORCE_USES_LIBRARIES)
-$(my_built_odex): PRIVATE_CONDITIONAL_USES_LIBRARIES_HOST := $(my_conditional_uses_libraries_host)
-$(my_built_odex): PRIVATE_CONDITIONAL_USES_LIBRARIES_TARGET := $(my_conditional_uses_libraries_target)
-$(my_built_odex): PRIVATE_USES_LIBRARY_NAMES := $(my_lib_names)
-$(my_built_odex): PRIVATE_OPTIONAL_USES_LIBRARY_NAMES := $(my_optional_lib_names)
-$(my_built_odex): PRIVATE_2ND_ARCH_VAR_PREFIX := $(my_2nd_arch_prefix)
-$(my_built_odex): PRIVATE_DEX_LOCATION := $(patsubst $(PRODUCT_OUT)%,%,$(LOCAL_INSTALLED_MODULE))
-$(my_built_odex): PRIVATE_DEX_PREOPT_IMAGE_LOCATION := $(my_dex_preopt_image_location)
-$(my_built_odex): PRIVATE_DEX2OAT_CLASS_LOADER_CONTEXT := $(my_dex_preopt_class_loader_context)
-$(my_built_odex): PRIVATE_DEX2OAT_STORED_CLASS_LOADER_CONTEXT_LIBS := $(my_stored_preopt_class_loader_context_libs)
-$(my_built_odex) : $($(my_2nd_arch_prefix)DEXPREOPT_ONE_FILE_DEPENDENCY_BUILT_BOOT_PREOPT) \
-    $(DEXPREOPT_ONE_FILE_DEPENDENCY_TOOLS) \
-    $(my_dex_preopt_image_filename)
-
-my_installed_odex := $(call get-odex-installed-file-path,$($(my_2nd_arch_prefix)DEX2OAT_TARGET_ARCH),$(LOCAL_INSTALLED_MODULE))
-
-my_built_vdex := $(patsubst %.odex,%.vdex,$(my_built_odex))
-my_installed_vdex := $(patsubst %.odex,%.vdex,$(my_installed_odex))
-my_installed_art := $(patsubst %.odex,%.art,$(my_installed_odex))
-
-ifndef LOCAL_DEX_PREOPT_APP_IMAGE
-# Local override not defined, use the global one.
-ifeq (true,$(WITH_DEX_PREOPT_APP_IMAGE))
-  LOCAL_DEX_PREOPT_APP_IMAGE := true
-endif
-endif
-
-ifeq (true,$(LOCAL_DEX_PREOPT_APP_IMAGE))
-my_built_art := $(patsubst %.odex,%.art,$(my_built_odex))
-$(my_built_odex): PRIVATE_ART_FILE_PREOPT_FLAGS := --app-image-file=$(my_built_art) \
-    --image-format=lz4
-$(eval $(call copy-one-file,$(my_built_art),$(my_installed_art)))
-built_art += $(my_built_art)
-installed_art += $(my_installed_art)
-built_installed_art += $(my_built_art):$(my_installed_art)
-endif
-
-$(eval $(call copy-one-file,$(my_built_odex),$(my_installed_odex)))
-$(eval $(call copy-one-file,$(my_built_vdex),$(my_installed_vdex)))
-
-built_odex += $(my_built_odex)
-built_vdex += $(my_built_vdex)
-
-installed_odex += $(my_installed_odex)
-installed_vdex += $(my_installed_vdex)
-
-built_installed_odex += $(my_built_odex):$(my_installed_odex)
-built_installed_vdex += $(my_built_vdex):$(my_installed_vdex)
diff --git a/core/soong_app_prebuilt.mk b/core/soong_app_prebuilt.mk
index 1440806..f723633 100644
--- a/core/soong_app_prebuilt.mk
+++ b/core/soong_app_prebuilt.mk
@@ -1,6 +1,16 @@
 # App prebuilt coming from Soong.
 # Extra inputs:
+# LOCAL_SOONG_BUILT_INSTALLED
+# LOCAL_SOONG_BUNDLE
+# LOCAL_SOONG_CLASSES_JAR
+# LOCAL_SOONG_DEX_JAR
+# LOCAL_SOONG_HEADER_JAR
+# LOCAL_SOONG_JACOCO_REPORT_CLASSES_JAR
+# LOCAL_SOONG_PROGUARD_DICT
 # LOCAL_SOONG_RESOURCE_EXPORT_PACKAGE
+# LOCAL_SOONG_RRO_DIRS
+# LOCAL_SOONG_JNI_LIBS_$(TARGET_ARCH)
+# LOCAL_SOONG_JNI_LIBS_$(TARGET_2ND_ARCH)
 
 ifneq ($(LOCAL_MODULE_MAKEFILE),$(SOONG_ANDROID_MK))
   $(call pretty-error,soong_app_prebuilt.mk may only be used from Soong)
@@ -59,28 +69,19 @@
 
 java-dex: $(LOCAL_SOONG_DEX_JAR)
 
-# defines built_odex along with rule to install odex
-include $(BUILD_SYSTEM)/dex_preopt_odex_install.mk
 
 ifneq ($(BUILD_PLATFORM_ZIP),)
   $(eval $(call copy-one-file,$(LOCAL_SOONG_DEX_JAR),$(dir $(LOCAL_BUILT_MODULE))package.dex.apk))
 endif
 
-ifdef LOCAL_DEX_PREOPT
-ifdef LOCAL_STRIP_DEX
-  # If we have stripped the final APK, use the original jar generated by soong.
-  $(built_odex): $(LOCAL_SOONG_DEX_JAR)
-	$(call dexpreopt-one-file,$<,$@)
-else
-  # If we haven't stripped, use the final APK for dexpreopt, as this may affect how the dex
-  # code is compiled.
-  $(built_odex): $(LOCAL_PREBUILT_MODULE_FILE)
-	$(call dexpreopt-one-file,$<,$@)
-endif  # LOCAL_STRIP_DEX
-  $(eval $(call dexpreopt-copy-jar,$(LOCAL_PREBUILT_MODULE_FILE),$(LOCAL_BUILT_MODULE),$(LOCAL_STRIP_DEX)))
-else
-  $(eval $(call copy-one-file,$(LOCAL_PREBUILT_MODULE_FILE),$(LOCAL_BUILT_MODULE)))
-endif
+$(eval $(call copy-one-file,$(LOCAL_PREBUILT_MODULE_FILE),$(LOCAL_BUILT_MODULE)))
+
+my_built_installed := $(foreach f,$(LOCAL_SOONG_BUILT_INSTALLED),\
+  $(call word-colon,1,$(f)):$(PRODUCT_OUT)$(call word-colon,2,$(f)))
+my_installed := $(call copy-many-files, $(my_built_installed))
+ALL_MODULES.$(my_register_name).INSTALLED += $(my_installed)
+ALL_MODULES.$(my_register_name).BUILT_INSTALLED += $(my_built_installed)
+$(my_register_name): $(my_installed)
 
 # embedded JNI will already have been handled by soong
 my_embed_jni :=
@@ -107,7 +108,7 @@
   PACKAGES.$(LOCAL_MODULE).CERTIFICATE := $(LOCAL_CERTIFICATE)
   PACKAGES.$(LOCAL_MODULE).PRIVATE_KEY := $(patsubst %.x509.pem,%.pk8,$(LOCAL_CERTIFICATE))
 endif
-
+include $(BUILD_SYSTEM)/app_certificate_validate.mk
 PACKAGES.$(LOCAL_MODULE).OVERRIDES := $(strip $(LOCAL_OVERRIDES_PACKAGES))
 
 ifdef LOCAL_SOONG_BUNDLE
diff --git a/core/soong_config.mk b/core/soong_config.mk
index 279a612..58e1a03 100644
--- a/core/soong_config.mk
+++ b/core/soong_config.mk
@@ -13,9 +13,9 @@
 endif
 endif
 
-ifeq ($(WRITE_SOONG_VARIABLES),true)
+include $(BUILD_SYSTEM)/dex_preopt_config.mk
 
-include $(BUILD_SYSTEM)/json.mk
+ifeq ($(WRITE_SOONG_VARIABLES),true)
 
 # Create soong.variables with copies of makefile settings.  Runs every build,
 # but only updates soong.variables if it changes
@@ -36,6 +36,7 @@
 
 $(call add_json_bool, Allow_missing_dependencies,        $(ALLOW_MISSING_DEPENDENCIES))
 $(call add_json_bool, Unbundled_build,                   $(TARGET_BUILD_APPS))
+$(call add_json_bool, Unbundled_build_sdks_from_source,  $(UNBUNDLED_BUILD_SDKS_FROM_SOURCE))
 $(call add_json_bool, Pdk,                               $(filter true,$(TARGET_BUILD_PDK)))
 
 $(call add_json_bool, Debuggable,                        $(filter userdebug eng,$(TARGET_BUILD_VARIANT)))
@@ -106,11 +107,13 @@
 $(call add_json_list, Platform_systemsdk_versions,       $(PLATFORM_SYSTEMSDK_VERSIONS))
 $(call add_json_bool, Malloc_not_svelte,                 $(call invert_bool,$(filter true,$(MALLOC_SVELTE))))
 $(call add_json_str,  Override_rs_driver,                $(OVERRIDE_RS_DRIVER))
+
 $(call add_json_bool, UncompressPrivAppDex,              $(call invert_bool,$(filter true,$(DONT_UNCOMPRESS_PRIV_APPS_DEXS))))
 $(call add_json_list, ModulesLoadedByPrivilegedModules,  $(PRODUCT_LOADED_BY_PRIVILEGED_MODULES))
-$(call add_json_bool, DefaultStripDex,                   $(call invert_bool,$(filter nostripping,$(DEX_PREOPT_DEFAULT))))
-$(call add_json_bool, DisableDexPreopt,                  $(filter false,$(WITH_DEXPREOPT)))
+
+$(call add_json_bool, DisableDexPreopt,                  $(call invert_bool,$(filter true,$(WITH_DEXPREOPT))))
 $(call add_json_list, DisableDexPreoptModules,           $(DEXPREOPT_DISABLED_MODULES))
+$(call add_json_str,  DexPreoptProfileDir,               $(PRODUCT_DEX_PREOPT_PROFILE_DIR))
 
 $(call add_json_bool, Product_is_iot,                    $(filter true,$(PRODUCT_IOT)))
 
@@ -139,6 +142,13 @@
 
 $(call add_json_bool, FlattenApex,                       $(filter true,$(TARGET_FLATTEN_APEX)))
 
+$(call add_json_str,  DexpreoptGlobalConfig,             $(DEX_PREOPT_CONFIG))
+
+$(call add_json_list, ManifestPackageNameOverrides,      $(PRODUCT_MANIFEST_PACKAGE_NAME_OVERRIDES))
+
+$(call add_json_bool, EnforceSystemCertificate,          $(ENFORCE_SYSTEM_CERTIFICATE))
+$(call add_json_list, EnforceSystemCertificateWhitelist, $(ENFORCE_SYSTEM_CERTIFICATE_WHITELIST))
+
 $(call add_json_map, VendorVars)
 $(foreach namespace,$(SOONG_CONFIG_NAMESPACES),\
   $(call add_json_map, $(namespace))\
diff --git a/core/soong_java_prebuilt.mk b/core/soong_java_prebuilt.mk
index 1642ba7..a62590d 100644
--- a/core/soong_java_prebuilt.mk
+++ b/core/soong_java_prebuilt.mk
@@ -1,5 +1,7 @@
 # Java prebuilt coming from Soong.
 # Extra inputs:
+# LOCAL_SOONG_BUILT_INSTALLED
+# LOCAL_SOONG_CLASSES_JAR
 # LOCAL_SOONG_HEADER_JAR
 # LOCAL_SOONG_DEX_JAR
 # LOCAL_SOONG_JACOCO_REPORT_CLASSES_JAR
@@ -22,8 +24,8 @@
 hiddenapi_flags_csv := $(intermediates.COMMON)/hiddenapi/flags.csv
 hiddenapi_metadata_csv := $(intermediates.COMMON)/hiddenapi/greylist.csv
 
-$(eval $(call copy-one-file,$(LOCAL_PREBUILT_MODULE_FILE),$(full_classes_jar)))
-$(eval $(call copy-one-file,$(LOCAL_PREBUILT_MODULE_FILE),$(full_classes_pre_proguard_jar)))
+$(eval $(call copy-one-file,$(LOCAL_SOONG_CLASSES_JAR),$(full_classes_jar)))
+$(eval $(call copy-one-file,$(LOCAL_SOONG_CLASSES_JAR),$(full_classes_pre_proguard_jar)))
 
 ifdef LOCAL_SOONG_JACOCO_REPORT_CLASSES_JAR
   $(eval $(call copy-one-file,$(LOCAL_SOONG_JACOCO_REPORT_CLASSES_JAR),\
@@ -80,37 +82,24 @@
         # java.mk.
         $(eval $(call hiddenapi-generate-csv,$(full_classes_jar),$(hiddenapi_flags_csv),$(hiddenapi_metadata_csv)))
         $(eval $(call hiddenapi-copy-soong-jar,$(LOCAL_SOONG_DEX_JAR),$(common_javalib.jar)))
+
+        ifeq (true,$(WITH_DEXPREOPT))
+          # For libart, the boot jars' odex files are replaced by $(DEFAULT_DEX_PREOPT_INSTALLED_IMAGE).
+          # We use this installed_odex trick to get boot.art installed.
+          installed_odex := $(DEFAULT_DEX_PREOPT_INSTALLED_IMAGE)
+          # Append the odex for the 2nd arch if we have one.
+          installed_odex += $($(TARGET_2ND_ARCH_VAR_PREFIX)DEFAULT_DEX_PREOPT_INSTALLED_IMAGE)
+          ALL_MODULES.$(my_register_name).INSTALLED += $(installed_odex)
+          # Make sure to install the .odex and .vdex when you run "make <module_name>"
+         $(my_all_targets): $(installed_odex)
+        endif
       else # !is_boot_jar
         $(eval $(call copy-one-file,$(LOCAL_SOONG_DEX_JAR),$(common_javalib.jar)))
       endif # is_boot_jar
       $(eval $(call add-dependency,$(common_javalib.jar),$(full_classes_jar) $(full_classes_header_jar)))
 
-      dex_preopt_profile_src_file := $(common_javalib.jar)
-
-      # defines built_odex along with rule to install odex
-      include $(BUILD_SYSTEM)/dex_preopt_odex_install.mk
-
-      dex_preopt_profile_src_file :=
-
-      ifdef LOCAL_DEX_PREOPT
-        ifneq ($(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
-          $(eval $(call copy-one-file,$(dexpreopted_boot_jar),$(LOCAL_BUILT_MODULE)))
-
-          # For libart boot jars, we don't have .odex files.
-        else # ! boot jar
-          $(built_odex): PRIVATE_MODULE := $(LOCAL_MODULE)
-          # Use pattern rule - we may have multiple built odex files.
-$(built_odex) : $(dir $(LOCAL_BUILT_MODULE))% : $(common_javalib.jar)
-	@echo "Dexpreopt Jar: $(PRIVATE_MODULE) ($@)"
-	$(call dexpreopt-one-file,$<,$@)
-
-         $(eval $(call dexpreopt-copy-jar,$(common_javalib.jar),$(LOCAL_BUILT_MODULE),$(LOCAL_STRIP_DEX)))
-        endif # ! boot jar
-      else # LOCAL_DEX_PREOPT
-        $(eval $(call copy-one-file,$(common_javalib.jar),$(LOCAL_BUILT_MODULE)))
-      endif # LOCAL_DEX_PREOPT
+      $(eval $(call copy-one-file,$(LOCAL_PREBUILT_MODULE_FILE),$(LOCAL_BUILT_MODULE)))
+      $(eval $(call add-dependency,$(LOCAL_BUILT_MODULE),$(common_javalib.jar)))
     else # LOCAL_IS_HOST_MODULE
       $(eval $(call copy-one-file,$(LOCAL_SOONG_DEX_JAR),$(LOCAL_BUILT_MODULE)))
       $(eval $(call add-dependency,$(LOCAL_BUILT_MODULE),$(full_classes_jar) $(full_classes_header_jar)))
@@ -135,6 +124,13 @@
   $(eval $(call copy-one-file,$(full_classes_jar),$(LOCAL_BUILT_MODULE)))
 endif  # LOCAL_SOONG_DEX_JAR
 
+my_built_installed := $(foreach f,$(LOCAL_SOONG_BUILT_INSTALLED),\
+  $(call word-colon,1,$(f)):$(PRODUCT_OUT)$(call word-colon,2,$(f)))
+my_installed := $(call copy-many-files, $(my_built_installed))
+ALL_MODULES.$(my_register_name).INSTALLED += $(my_installed)
+ALL_MODULES.$(my_register_name).BUILT_INSTALLED += $(my_built_installed)
+$(my_register_name): $(my_installed)
+
 ifdef LOCAL_SOONG_AAR
   ALL_MODULES.$(LOCAL_MODULE).AAR := $(LOCAL_SOONG_AAR)
 endif
diff --git a/core/static_java_library.mk b/core/static_java_library.mk
index 2a87705..cee7c9e 100644
--- a/core/static_java_library.mk
+++ b/core/static_java_library.mk
@@ -110,7 +110,7 @@
 framework_res_package_export :=
 # Please refer to package.mk
 ifneq ($(LOCAL_NO_STANDARD_LIBRARIES),true)
-ifneq ($(filter-out current system_current test_current,$(LOCAL_SDK_RES_VERSION))$(if $(TARGET_BUILD_APPS),$(filter current system_current test_current,$(LOCAL_SDK_RES_VERSION))),)
+ifneq ($(filter-out current system_current test_current,$(LOCAL_SDK_RES_VERSION))$(if $(TARGET_BUILD_APPS_USE_PREBUILT_SDK),$(filter current system_current test_current,$(LOCAL_SDK_RES_VERSION))),)
 framework_res_package_export := \
     $(call resolve-prebuilt-sdk-jar-path,$(LOCAL_SDK_RES_VERSION))
 else
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 42a3bea..c4f9a52 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -179,8 +179,11 @@
     # SDK version the package was built for, otherwise it should fall back to
     # 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
+    # This value will always be forced to 0 for release builds by the logic
+    # in the "ifeq" block above, so the value below will be used on any
+    # non-release builds, and it should always be at least 1, to indicate that
+    # APIs may have changed since the claimed PLATFORM_SDK_VERSION.
+    PLATFORM_PREVIEW_SDK_VERSION := 1
   endif
 endif
 .KATI_READONLY := PLATFORM_PREVIEW_SDK_VERSION
@@ -249,7 +252,7 @@
     #  It must be of the form "YYYY-MM-DD" on production devices.
     #  It must match one of the Android Security Patch Level strings of the Public Security Bulletins.
     #  If there is no $PLATFORM_SECURITY_PATCH set, keep it empty.
-      PLATFORM_SECURITY_PATCH := 2018-09-05
+      PLATFORM_SECURITY_PATCH := 2018-12-05
 endif
 .KATI_READONLY := PLATFORM_SECURITY_PATCH
 
@@ -311,7 +314,7 @@
   # If no BUILD_NUMBER is set, create a useful "I am an engineering build
   # from this date/time" value.  Make it start with a non-digit so that
   # anyone trying to parse it as an integer will probably get "0".
-  BUILD_NUMBER := eng.$(shell echo $${USER:0:6}).$(shell $(DATE) +%Y%m%d.%H%M%S)
+  BUILD_NUMBER := eng.$(shell echo $${BUILD_USERNAME:0:6}).$(shell $(DATE) +%Y%m%d.%H%M%S)
   HAS_BUILD_NUMBER := false
 endif
 .KATI_READONLY := BUILD_NUMBER HAS_BUILD_NUMBER
diff --git a/envsetup.sh b/envsetup.sh
index a1d6e39..62a64b6 100644
--- a/envsetup.sh
+++ b/envsetup.sh
@@ -266,7 +266,14 @@
     fi
 
     export PATH=$ANDROID_BUILD_PATHS$PATH
-    export PYTHONPATH=$T/development/python-packages:$PYTHONPATH
+
+    # out with the duplicate old
+    if [ -n $ANDROID_PYTHONPATH ]; then
+        export PYTHONPATH=${PYTHONPATH//$ANDROID_PYTHONPATH/}
+    fi
+    # and in with the new
+    export ANDROID_PYTHONPATH=$T/development/python-packages:
+    export PYTHONPATH=$ANDROID_PYTHONPATH$PYTHONPATH
 
     export ANDROID_JAVA_HOME=$(get_abs_build_var ANDROID_JAVA_HOME)
     export JAVA_HOME=$ANDROID_JAVA_HOME
@@ -363,8 +370,8 @@
     fi
     complete -F _lunch lunch
 
-    complete -F _complete-android-module-names gomod
-    complete -F _complete-android-module-names m
+    complete -F _complete_android_module_names gomod
+    complete -F _complete_android_module_names m
 }
 
 function choosetype()
@@ -765,6 +772,9 @@
 {
     local TOPFILE=build/make/core/envsetup.mk
     local HERE=$PWD
+    if [ "$1" ]; then
+        \cd $1
+    fi;
     local T=
     while [ \( ! \( -f $TOPFILE \) \) -a \( $PWD != "/" \) ]; do
         T=`PWD= /bin/pwd`
@@ -845,24 +855,29 @@
             # Remove the leading ./ and trailing / if any exists.
             DIR=${DIR#./}
             DIR=${DIR%/}
-            if [ -f $DIR/Android.mk -o -f $DIR/Android.bp ]; then
-                local TO_CHOP=`(\cd -P -- $T && pwd -P) | wc -c | tr -d ' '`
-                local TO_CHOP=`expr $TO_CHOP + 1`
-                local START=`PWD= /bin/pwd`
-                local MDIR=`echo $START | cut -c${TO_CHOP}-`
-                if [ "$MDIR" = "" ] ; then
-                    MDIR=$DIR
-                else
-                    MDIR=$MDIR/$DIR
+            local M
+            if [ "$DIR_MODULES" = "" ]; then
+                M=$(findmakefile $DIR)
+            else
+                # Only check the target directory if a module is specified.
+                if [ -f $DIR/Android.mk -o -f $DIR/Android.bp ]; then
+                    local HERE=$PWD
+                    cd $DIR
+                    M=`PWD= /bin/pwd`
+                    M=$M/Android.mk
+                    cd $HERE
                 fi
-                MDIR=${MDIR%/.}
+            fi
+            if [ "$M" ]; then
+                # Remove the path to top as the makefilepath needs to be relative
+                local M=`echo $M|sed 's:'$T'/::'`
                 if [ "$DIR_MODULES" = "" ]; then
-                    MODULES_IN_PATHS="$MODULES_IN_PATHS MODULES-IN-$MDIR"
-                    GET_INSTALL_PATHS="$GET_INSTALL_PATHS GET-INSTALL-PATH-IN-$MDIR"
+                    MODULES_IN_PATHS="$MODULES_IN_PATHS MODULES-IN-$(dirname ${M})"
+                    GET_INSTALL_PATHS="$GET_INSTALL_PATHS GET-INSTALL-PATH-IN-$(dirname ${M})"
                 else
                     MODULES="$MODULES $DIR_MODULES"
                 fi
-                MAKEFILE="$MAKEFILE $MDIR/Android.mk"
+                MAKEFILE="$MAKEFILE $M"
             else
                 case $DIR in
                   showcommands | snod | dist | *=*) ARGS="$ARGS $DIR";;
@@ -1535,7 +1550,7 @@
     fi
 }
 
-function _complete-android-module-names() {
+function _complete_android_module_names() {
     local word=${COMP_WORDS[COMP_CWORD]}
     COMPREPLY=( $(allmod | grep -E "^$word") )
 }
diff --git a/target/Android.mk b/target/Android.mk
deleted file mode 100644
index 9929b00..0000000
--- a/target/Android.mk
+++ /dev/null
@@ -1,23 +0,0 @@
-#
-# Copyright (C) 2017 The Android Open Source Project
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-LOCAL_PATH := $(call my-dir)
-
-# Only if this Android.mk was included not by a symlink should it be used.
-# This facilitates the transition away from symlinks: b/64397960
-ifeq ($(LOCAL_PATH),build/make/target)
-include $(call first-makefiles-under,$(LOCAL_PATH))
-endif
diff --git a/target/OWNERS b/target/OWNERS
new file mode 100644
index 0000000..feb2742
--- /dev/null
+++ b/target/OWNERS
@@ -0,0 +1 @@
+hansson@google.com
diff --git a/target/board/BoardConfigEmuCommon.mk b/target/board/BoardConfigEmuCommon.mk
index 38f79fd..1e325b9 100644
--- a/target/board/BoardConfigEmuCommon.mk
+++ b/target/board/BoardConfigEmuCommon.mk
@@ -20,8 +20,6 @@
 # the GLES renderer disables itself if host GL acceleration isn't available.
 USE_OPENGL_RENDERER := true
 
-TARGET_COPY_OUT_VENDOR := vendor
-
 # ~100 MB vendor image. Please adjust system image / vendor image sizes
 # when finalizing them. The partition size needs to be a multiple of image
 # block size: 4096.
@@ -31,4 +29,4 @@
 DEVICE_MATRIX_FILE   := device/generic/goldfish/compatibility_matrix.xml
 
 BOARD_SEPOLICY_DIRS += device/generic/goldfish/sepolicy/common
-BOARD_PROPERTY_OVERRIDES_SPLIT_ENABLED := true
+
diff --git a/target/board/BoardConfigGsiCommon.mk b/target/board/BoardConfigGsiCommon.mk
index 73af020..f9e9ee1 100644
--- a/target/board/BoardConfigGsiCommon.mk
+++ b/target/board/BoardConfigGsiCommon.mk
@@ -6,6 +6,9 @@
 
 include build/make/target/board/BoardConfigMainlineCommon.mk
 
+# Enable system property split for Treble
+BOARD_PROPERTY_OVERRIDES_SPLIT_ENABLED := true
+
 # This flag is set by mainline but isn't desired for GSI.
 BOARD_USES_SYSTEM_OTHER_ODEX :=
 
@@ -14,9 +17,21 @@
 # we explicit specify this need below (even though it's the current default).
 TARGET_USERIMAGES_SPARSE_EXT_DISABLED := false
 
+# system.img is always ext4 with sparse option
+# GSI also includes make_f2fs to support userdata parition in f2fs
+# for some devices
+TARGET_USERIMAGES_USE_F2FS := true
+
 # Enable dynamic system image size and reserved 64MB in it.
 BOARD_SYSTEMIMAGE_PARTITION_RESERVED_SIZE := 67108864
 
+# GSI always requires separate vendor packages to vendor.img
+TARGET_COPY_OUT_VENDOR := vendor
+
+# Creates metadata partition mount point under root for
+# the devices with metadata parition
+BOARD_USES_METADATA_PARTITION := true
+
 # Android Verified Boot (AVB):
 #   Set AVB_VBMETA_IMAGE_FLAGS_VERIFICATION_DISABLED (--flag 2) in
 #   vbmeta.img to disable AVB verification.
@@ -32,15 +47,13 @@
 BOARD_AVB_SYSTEM_ROLLBACK_INDEX := $(PLATFORM_SECURITY_PATCH_TIMESTAMP)
 BOARD_AVB_SYSTEM_ROLLBACK_INDEX_LOCATION := 1
 
+# GSI specific System Properties
 ifneq (,$(filter userdebug eng,$(TARGET_BUILD_VARIANT)))
 # GSI is always userdebug and needs a couple of properties taking precedence
 # over those set by the vendor.
 TARGET_SYSTEM_PROP := build/make/target/board/gsi_system.prop
 endif
 
-# Android generic system image always create metadata partition
-BOARD_USES_METADATA_PARTITION := true
-
 # Set this to create /cache mount point for non-A/B devices that mounts /cache.
 # The partition size doesn't matter, just to make build pass.
 BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE := ext4
diff --git a/target/board/generic/BoardConfig.mk b/target/board/generic/BoardConfig.mk
index 738c037..cdb1d29 100644
--- a/target/board/generic/BoardConfig.mk
+++ b/target/board/generic/BoardConfig.mk
@@ -16,9 +16,10 @@
 # arm emulator specific definitions
 TARGET_ARCH := arm
 
-# Note: Before Pi, we built the platform images for ARMv7-A _without_ NEON.
+# Note: Before P, we built the platform images for ARMv7-A _without_ NEON.
+# Note: Before Q, we built the CTS and SDK images for ARMv7-A _without_ NEON.
 #
-ifneq ($(TARGET_BUILD_APPS)$(filter cts sdk,$(MAKECMDGOALS)),)
+ifneq ($(TARGET_BUILD_APPS),)
 # DO NOT USE
 #
 # This architecture variant should NOT be used for 32 bit arm platform
diff --git a/target/board/generic_arm64/BoardConfig.mk b/target/board/generic_arm64/BoardConfig.mk
index 1b6429c..3331d18 100644
--- a/target/board/generic_arm64/BoardConfig.mk
+++ b/target/board/generic_arm64/BoardConfig.mk
@@ -23,7 +23,7 @@
 TARGET_2ND_CPU_ABI := armeabi-v7a
 TARGET_2ND_CPU_ABI2 := armeabi
 
-ifneq ($(TARGET_BUILD_APPS)$(filter cts vts sdk,$(MAKECMDGOALS)),)
+ifneq ($(TARGET_BUILD_APPS)$(filter cts sdk vts,$(MAKECMDGOALS)),)
 # DO NOT USE
 # DO NOT USE
 #
@@ -41,7 +41,11 @@
 #
 # DO NOT USE
 # DO NOT USE
+ifneq ($(filter cts sdk vts,$(MAKECMDGOALS)),)
+TARGET_2ND_ARCH_VARIANT := armv7-a-neon
+else
 TARGET_2ND_ARCH_VARIANT := armv7-a
+endif
 # DO NOT USE
 # DO NOT USE
 TARGET_2ND_CPU_VARIANT := generic
diff --git a/target/board/generic_arm64_a/BoardConfig.mk b/target/board/generic_arm64_a/BoardConfig.mk
index 34a8ac0..68aedfc 100644
--- a/target/board/generic_arm64_a/BoardConfig.mk
+++ b/target/board/generic_arm64_a/BoardConfig.mk
@@ -14,7 +14,7 @@
 # limitations under the License.
 #
 
-include build/make/target/board/treble_common_64.mk
+include build/make/target/board/BoardConfigGsiCommon.mk
 
 TARGET_ARCH := arm64
 TARGET_ARCH_VARIANT := armv8-a
@@ -27,3 +27,6 @@
 TARGET_2ND_CPU_ABI := armeabi-v7a
 TARGET_2ND_CPU_ABI2 := armeabi
 TARGET_2ND_CPU_VARIANT := generic
+
+# This is a non-system-as-root Legacy GSI build target
+BOARD_BUILD_SYSTEM_ROOT_IMAGE := false
diff --git a/target/board/generic_arm64_ab/BoardConfig.mk b/target/board/generic_arm64_ab/BoardConfig.mk
index 88b90a8..6e54d81 100644
--- a/target/board/generic_arm64_ab/BoardConfig.mk
+++ b/target/board/generic_arm64_ab/BoardConfig.mk
@@ -14,7 +14,7 @@
 # limitations under the License.
 #
 
-include build/make/target/board/treble_common_64.mk
+include build/make/target/board/BoardConfigGsiCommon.mk
 
 TARGET_ARCH := arm64
 TARGET_ARCH_VARIANT := armv8-a
@@ -28,21 +28,12 @@
 TARGET_2ND_CPU_ABI2 := armeabi
 TARGET_2ND_CPU_VARIANT := generic
 
-# Enable A/B update
-TARGET_NO_RECOVERY := true
-BOARD_BUILD_SYSTEM_ROOT_IMAGE := true
-
 # TODO(jiyong) These might be SoC specific.
 BOARD_ROOT_EXTRA_FOLDERS += firmware firmware/radio persist
 BOARD_ROOT_EXTRA_SYMLINKS += /vendor/lib/dsp:/dsp
 BOARD_ROOT_EXTRA_SYMLINKS += /vendor/firmware_mnt/image:/firmware/image
 BOARD_ROOT_EXTRA_SYMLINKS += /vendor/firmware_mnt/verinfo:/firmware/verinfo
 
-# Set this to create /cache mount point for non-A/B devices that mounts /cache.
-# The partition size doesn't matter, just to make build pass.
-BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE := ext4
-BOARD_CACHEIMAGE_PARTITION_SIZE := 16777216
-
 # TODO(b/36764215): remove this setting when the generic system image
 # no longer has QCOM-specific directories under /.
 BOARD_SEPOLICY_DIRS += build/target/board/generic_arm64_ab/sepolicy
diff --git a/target/board/generic_arm_a/BoardConfig.mk b/target/board/generic_arm_a/BoardConfig.mk
index 57a5196..464a74f 100644
--- a/target/board/generic_arm_a/BoardConfig.mk
+++ b/target/board/generic_arm_a/BoardConfig.mk
@@ -14,10 +14,16 @@
 # limitations under the License.
 #
 
-include build/make/target/board/treble_common_32.mk
+include build/make/target/board/BoardConfigGsiCommon.mk
 
 TARGET_ARCH := arm
 TARGET_ARCH_VARIANT := armv7-a-neon
 TARGET_CPU_ABI := armeabi-v7a
 TARGET_CPU_ABI2 := armeabi
 TARGET_CPU_VARIANT := generic
+
+# Legacy GSI keeps 32 bits binder for 32 bits CPU Arch
+TARGET_USES_64_BIT_BINDER := false
+
+# This is a non-system-as-root Legacy GSI build target
+BOARD_BUILD_SYSTEM_ROOT_IMAGE := false
diff --git a/target/board/generic_arm_ab/BoardConfig.mk b/target/board/generic_arm_ab/BoardConfig.mk
index 3d14842..9100094 100644
--- a/target/board/generic_arm_ab/BoardConfig.mk
+++ b/target/board/generic_arm_ab/BoardConfig.mk
@@ -14,7 +14,7 @@
 # limitations under the License.
 #
 
-include build/make/target/board/treble_common_32.mk
+include build/make/target/board/BoardConfigGsiCommon.mk
 
 TARGET_ARCH := arm
 TARGET_ARCH_VARIANT := armv7-a-neon
@@ -22,9 +22,8 @@
 TARGET_CPU_ABI2 := armeabi
 TARGET_CPU_VARIANT := generic
 
-# Enable A/B update
-TARGET_NO_RECOVERY := true
-BOARD_BUILD_SYSTEM_ROOT_IMAGE := true
+# Legacy GSI keeps 32 bits binder for 32 bits CPU Arch
+TARGET_USES_64_BIT_BINDER := false
 
 # TODO(jiyong) These might be SoC specific.
 BOARD_ROOT_EXTRA_FOLDERS += firmware firmware/radio persist
@@ -32,11 +31,6 @@
 BOARD_ROOT_EXTRA_SYMLINKS += /vendor/firmware_mnt/image:/firmware/image
 BOARD_ROOT_EXTRA_SYMLINKS += /vendor/firmware_mnt/verinfo:/firmware/verinfo
 
-# Set this to create /cache mount point for non-A/B devices that mounts /cache.
-# The partition size doesn't matter, just to make build pass.
-BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE := ext4
-BOARD_CACHEIMAGE_PARTITION_SIZE := 16777216
-
 # TODO(b/36764215): remove this setting when the generic system image
 # no longer has QCOM-specific directories under /.
 BOARD_SEPOLICY_DIRS += build/target/board/generic_arm64_ab/sepolicy
diff --git a/target/board/generic_x86_64_a/BoardConfig.mk b/target/board/generic_x86_64_a/BoardConfig.mk
index 2c02604..07eef4f 100644
--- a/target/board/generic_x86_64_a/BoardConfig.mk
+++ b/target/board/generic_x86_64_a/BoardConfig.mk
@@ -14,7 +14,7 @@
 # limitations under the License.
 #
 
-include build/make/target/board/treble_common_64.mk
+include build/make/target/board/BoardConfigGsiCommon.mk
 
 TARGET_CPU_ABI := x86_64
 TARGET_ARCH := x86_64
@@ -23,3 +23,6 @@
 TARGET_2ND_CPU_ABI := x86
 TARGET_2ND_ARCH := x86
 TARGET_2ND_ARCH_VARIANT := x86_64
+
+# This is a non-system-as-root Legacy GSI build target
+BOARD_BUILD_SYSTEM_ROOT_IMAGE := false
diff --git a/target/board/generic_x86_64_ab/BoardConfig.mk b/target/board/generic_x86_64_ab/BoardConfig.mk
index a098dfe..1dd5e48 100644
--- a/target/board/generic_x86_64_ab/BoardConfig.mk
+++ b/target/board/generic_x86_64_ab/BoardConfig.mk
@@ -14,7 +14,7 @@
 # limitations under the License.
 #
 
-include build/make/target/board/treble_common_64.mk
+include build/make/target/board/BoardConfigGsiCommon.mk
 
 TARGET_CPU_ABI := x86_64
 TARGET_ARCH := x86_64
@@ -23,12 +23,3 @@
 TARGET_2ND_CPU_ABI := x86
 TARGET_2ND_ARCH := x86
 TARGET_2ND_ARCH_VARIANT := x86_64
-
-# Set this to create /cache mount point for non-A/B devices that mounts /cache.
-# The partition size doesn't matter, just to make build pass.
-BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE := ext4
-BOARD_CACHEIMAGE_PARTITION_SIZE := 16777216
-
-# Enable A/B update
-TARGET_NO_RECOVERY := true
-BOARD_BUILD_SYSTEM_ROOT_IMAGE := true
diff --git a/target/board/generic_x86_a/BoardConfig.mk b/target/board/generic_x86_a/BoardConfig.mk
index 67cb07d..e3e8a3a 100644
--- a/target/board/generic_x86_a/BoardConfig.mk
+++ b/target/board/generic_x86_a/BoardConfig.mk
@@ -14,8 +14,14 @@
 # limitations under the License.
 #
 
-include build/make/target/board/treble_common_32.mk
+include build/make/target/board/BoardConfigGsiCommon.mk
 
 TARGET_CPU_ABI := x86
 TARGET_ARCH := x86
 TARGET_ARCH_VARIANT := x86
+
+# Legacy GSI keeps 32 bits binder for 32 bits CPU Arch
+TARGET_USES_64_BIT_BINDER := false
+
+# This is a non-system-as-root Legacy GSI build target
+BOARD_BUILD_SYSTEM_ROOT_IMAGE := false
diff --git a/target/board/generic_x86_ab/BoardConfig.mk b/target/board/generic_x86_ab/BoardConfig.mk
index db4dacd..53acffd 100644
--- a/target/board/generic_x86_ab/BoardConfig.mk
+++ b/target/board/generic_x86_ab/BoardConfig.mk
@@ -14,17 +14,11 @@
 # limitations under the License.
 #
 
-include build/make/target/board/treble_common_32.mk
+include build/make/target/board/BoardConfigGsiCommon.mk
 
 TARGET_CPU_ABI := x86
 TARGET_ARCH := x86
 TARGET_ARCH_VARIANT := x86
 
-# Set this to create /cache mount point for non-A/B devices that mounts /cache.
-# The partition size doesn't matter, just to make build pass.
-BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE := ext4
-BOARD_CACHEIMAGE_PARTITION_SIZE := 16777216
-
-# Enable A/B update
-TARGET_NO_RECOVERY := true
-BOARD_BUILD_SYSTEM_ROOT_IMAGE := true
+# Legacy GSI keeps 32 bits binder for 32 bits CPU Arch
+TARGET_USES_64_BIT_BINDER := false
diff --git a/target/board/treble_common.mk b/target/board/treble_common.mk
deleted file mode 100644
index eda5b37..0000000
--- a/target/board/treble_common.mk
+++ /dev/null
@@ -1,69 +0,0 @@
-#
-# Copyright (C) 2017 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.
-#
-
-# Common boardconfig settings for generic AOSP products targetting mobile
-# (phone/table) devices.
-
-# VNDK
-BOARD_VNDK_VERSION := current
-
-# Properties
-TARGET_SYSTEM_PROP := build/make/target/board/treble_system.prop
-BOARD_PROPERTY_OVERRIDES_SPLIT_ENABLED := true
-
-# Bootloader, kernel and recovery are not part of generic AOSP image
-TARGET_NO_BOOTLOADER := true
-TARGET_NO_KERNEL := true
-
-# system.img is always ext4 with sparse option
-# GSI also includes make_f2fs to support userdata parition in f2fs
-# for some devices
-TARGET_USERIMAGES_USE_EXT4 := true
-TARGET_USERIMAGES_USE_F2FS := true
-TARGET_USERIMAGES_SPARSE_EXT_DISABLED := false
-
-# Enable dynamic system image size and reserved 64MB in it.
-BOARD_SYSTEMIMAGE_PARTITION_RESERVED_SIZE := 67108864
-
-# Generic AOSP image always requires separate vendor.img
-TARGET_COPY_OUT_VENDOR := vendor
-
-# Android generic system image always create metadata partition
-BOARD_USES_METADATA_PARTITION := true
-
-# Set emulator framebuffer display device buffer count to 3
-NUM_FRAMEBUFFER_SURFACE_BUFFERS := 3
-
-# Audio
-USE_XML_AUDIO_POLICY_CONF := 1
-
-# Android Verified Boot (AVB):
-#   1) Sets BOARD_AVB_ENABLE to sign the GSI image.
-#   2) Sets AVB_VBMETA_IMAGE_FLAGS_VERIFICATION_DISABLED (--flag 2) in
-#      vbmeta.img to disable AVB verification.
-#
-# To disable AVB for GSI, use the vbmeta.img and the GSI together.
-# To enable AVB for GSI, include the GSI public key into the device-specific
-# vbmeta.img.
-BOARD_AVB_ENABLE := true
-BOARD_AVB_ROLLBACK_INDEX := $(PLATFORM_SECURITY_PATCH_TIMESTAMP)
-BOARD_AVB_MAKE_VBMETA_IMAGE_ARGS += --flag 2
-
-# Enable chain partition for system.
-BOARD_AVB_SYSTEM_KEY_PATH := external/avb/test/data/testkey_rsa2048.pem
-BOARD_AVB_SYSTEM_ALGORITHM := SHA256_RSA2048
-BOARD_AVB_SYSTEM_ROLLBACK_INDEX := $(PLATFORM_SECURITY_PATCH_TIMESTAMP)
-BOARD_AVB_SYSTEM_ROLLBACK_INDEX_LOCATION := 1
diff --git a/target/board/treble_common_32.mk b/target/board/treble_common_32.mk
deleted file mode 100644
index b66c41e..0000000
--- a/target/board/treble_common_32.mk
+++ /dev/null
@@ -1,17 +0,0 @@
-#
-# Copyright (C) 2017 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.
-#
-
-include build/make/target/board/treble_common.mk
diff --git a/target/board/treble_common_64.mk b/target/board/treble_common_64.mk
deleted file mode 100644
index 8980dfd..0000000
--- a/target/board/treble_common_64.mk
+++ /dev/null
@@ -1,20 +0,0 @@
-#
-# Copyright (C) 2017 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.
-#
-
-include build/make/target/board/treble_common.mk
-
-# Enable 64-bits binder
-TARGET_USES_64_BIT_BINDER := true
diff --git a/target/board/treble_system.prop b/target/board/treble_system.prop
deleted file mode 100644
index 0c04a95..0000000
--- a/target/board/treble_system.prop
+++ /dev/null
@@ -1,8 +0,0 @@
-# GSI always generate dex pre-opt in system image
-ro.cp_system_other_odex=0
-
-# GSI always disables adb authentication
-ro.adb.secure=0
-
-# TODO(b/78105955): disable privapp_permissions checking before the bug solved
-ro.control_privapp_permissions=disable
diff --git a/target/product/aosp_arm.mk b/target/product/aosp_arm.mk
index 5a6a092..98114c1 100644
--- a/target/product/aosp_arm.mk
+++ b/target/product/aosp_arm.mk
@@ -40,7 +40,8 @@
 
 # GSI specific tasks on boot
 PRODUCT_COPY_FILES += \
-    build/make/target/product/vndk/init.gsi.rc:system/etc/init/init.gsi.rc
+    build/make/target/product/gsi/skip_mount.cfg:system/etc/init/config/skip_mount.cfg \
+    build/make/target/product/gsi/init.gsi.rc:system/etc/init/init.gsi.rc \
 
 # Support addtional P vendor interface
 PRODUCT_EXTRA_VNDK_VERSIONS := 28
diff --git a/target/product/aosp_arm64.mk b/target/product/aosp_arm64.mk
index 90c159f..87e14d7 100644
--- a/target/product/aosp_arm64.mk
+++ b/target/product/aosp_arm64.mk
@@ -56,7 +56,8 @@
 
 # GSI specific tasks on boot
 PRODUCT_COPY_FILES += \
-    build/make/target/product/vndk/init.gsi.rc:system/etc/init/init.gsi.rc
+    build/make/target/product/gsi/skip_mount.cfg:system/etc/init/config/skip_mount.cfg \
+    build/make/target/product/gsi/init.gsi.rc:system/etc/init/init.gsi.rc \
 
 # Support addtional P vendor interface
 PRODUCT_EXTRA_VNDK_VERSIONS := 28
diff --git a/target/product/aosp_arm64_a.mk b/target/product/aosp_arm64_a.mk
index 3c7af33..b1c4b7d 100644
--- a/target/product/aosp_arm64_a.mk
+++ b/target/product/aosp_arm64_a.mk
@@ -17,7 +17,7 @@
 # PRODUCT_PROPERTY_OVERRIDES cannot be used here because sysprops will be at
 # /vendor/[build|default].prop when build split is on. In order to have sysprops
 # on the generic system image, place them in build/make/target/board/
-# treble_system.prop.
+# gsi_system.prop.
 
 include build/make/target/product/treble_common_64.mk
 
diff --git a/target/product/aosp_arm64_ab.mk b/target/product/aosp_arm64_ab.mk
index d389c74..92f5055 100644
--- a/target/product/aosp_arm64_ab.mk
+++ b/target/product/aosp_arm64_ab.mk
@@ -17,7 +17,7 @@
 # PRODUCT_PROPERTY_OVERRIDES cannot be used here because sysprops will be at
 # /vendor/[build|default].prop when build split is on. In order to have sysprops
 # on the generic system image, place them in build/make/target/board/
-# treble_system.prop.
+# gsi_system.prop.
 
 # aosp_arm64_ab-userdebug is a Legacy GSI for the devices with:
 # - ARM 64 bits user space
diff --git a/target/product/aosp_arm_a.mk b/target/product/aosp_arm_a.mk
index 3060fa9..d89a326 100644
--- a/target/product/aosp_arm_a.mk
+++ b/target/product/aosp_arm_a.mk
@@ -17,7 +17,7 @@
 # PRODUCT_PROPERTY_OVERRIDES cannot be used here because sysprops will be at
 # /vendor/[build|default].prop when build split is on. In order to have sysprops
 # on the generic system image, place them in build/make/target/board/
-# treble_system.prop.
+# gsi_system.prop.
 
 include build/make/target/product/treble_common_32.mk
 
diff --git a/target/product/aosp_arm_ab.mk b/target/product/aosp_arm_ab.mk
index 5845d3b..b35e517 100644
--- a/target/product/aosp_arm_ab.mk
+++ b/target/product/aosp_arm_ab.mk
@@ -17,7 +17,7 @@
 # PRODUCT_PROPERTY_OVERRIDES cannot be used here because sysprops will be at
 # /vendor/[build|default].prop when build split is on. In order to have sysprops
 # on the generic system image, place them in build/make/target/board/
-# treble_system.prop.
+# gsi_system.prop.
 
 # aosp_arm_ab-userdebug is a Legacy GSI for the devices with:
 # - ARM 32 bits user space
diff --git a/target/product/aosp_x86.mk b/target/product/aosp_x86.mk
index da31e24..50d7355 100644
--- a/target/product/aosp_x86.mk
+++ b/target/product/aosp_x86.mk
@@ -40,7 +40,8 @@
 
 # GSI specific tasks on boot
 PRODUCT_COPY_FILES += \
-    build/make/target/product/vndk/init.gsi.rc:system/etc/init/init.gsi.rc
+    build/make/target/product/gsi/skip_mount.cfg:system/etc/init/config/skip_mount.cfg \
+    build/make/target/product/gsi/init.gsi.rc:system/etc/init/init.gsi.rc \
 
 # Support addtional P vendor interface
 PRODUCT_EXTRA_VNDK_VERSIONS := 28
diff --git a/target/product/aosp_x86_64.mk b/target/product/aosp_x86_64.mk
index 4ce40cc..499831b 100644
--- a/target/product/aosp_x86_64.mk
+++ b/target/product/aosp_x86_64.mk
@@ -56,7 +56,8 @@
 
 # GSI specific tasks on boot
 PRODUCT_COPY_FILES += \
-    build/make/target/product/vndk/init.gsi.rc:system/etc/init/init.gsi.rc
+    build/make/target/product/gsi/skip_mount.cfg:system/etc/init/config/skip_mount.cfg \
+    build/make/target/product/gsi/init.gsi.rc:system/etc/init/init.gsi.rc \
 
 # Support addtional P vendor interface
 PRODUCT_EXTRA_VNDK_VERSIONS := 28
diff --git a/target/product/aosp_x86_64_a.mk b/target/product/aosp_x86_64_a.mk
index a7fb740..6b6785a 100644
--- a/target/product/aosp_x86_64_a.mk
+++ b/target/product/aosp_x86_64_a.mk
@@ -17,7 +17,7 @@
 # PRODUCT_PROPERTY_OVERRIDES cannot be used here because sysprops will be at
 # /vendor/[build|default].prop when build split is on. In order to have sysprops
 # on the generic system image, place them in build/make/target/board/
-# treble_system.prop.
+# gsi_system.prop.
 
 include build/make/target/product/treble_common_64.mk
 
diff --git a/target/product/aosp_x86_64_ab.mk b/target/product/aosp_x86_64_ab.mk
index d9163d7..35bf61a 100644
--- a/target/product/aosp_x86_64_ab.mk
+++ b/target/product/aosp_x86_64_ab.mk
@@ -17,7 +17,7 @@
 # PRODUCT_PROPERTY_OVERRIDES cannot be used here because sysprops will be at
 # /vendor/[build|default].prop when build split is on. In order to have sysprops
 # on the generic system image, place them in build/make/target/board/
-# treble_system.prop.
+# gsi_system.prop.
 
 # aosp_x86_64_ab-userdebug is a Legacy GSI for the devices with:
 # - x86 64 bits user space
diff --git a/target/product/aosp_x86_a.mk b/target/product/aosp_x86_a.mk
index 9ed2995..99ed7e4 100644
--- a/target/product/aosp_x86_a.mk
+++ b/target/product/aosp_x86_a.mk
@@ -17,7 +17,7 @@
 # PRODUCT_PROPERTY_OVERRIDES cannot be used here because sysprops will be at
 # /vendor/[build|default].prop when build split is on. In order to have sysprops
 # on the generic system image, place them in build/make/target/board/
-# treble_system.prop.
+# gsi_system.prop.
 
 include build/make/target/product/treble_common_32.mk
 
diff --git a/target/product/aosp_x86_ab.mk b/target/product/aosp_x86_ab.mk
index 4fff3d1..185e2f0 100644
--- a/target/product/aosp_x86_ab.mk
+++ b/target/product/aosp_x86_ab.mk
@@ -17,7 +17,7 @@
 # PRODUCT_PROPERTY_OVERRIDES cannot be used here because sysprops will be at
 # /vendor/[build|default].prop when build split is on. In order to have sysprops
 # on the generic system image, place them in build/make/target/board/
-# treble_system.prop.
+# gsi_system.prop.
 
 # aosp_x86_ab-userdebug is a Legacy GSI for the devices with:
 # - x86 32 bits user space
diff --git a/target/product/base_system.mk b/target/product/base_system.mk
index 3d5c512..7c3ac3b 100644
--- a/target/product/base_system.mk
+++ b/target/product/base_system.mk
@@ -16,6 +16,7 @@
 
 # Base modules and settings for the system partition.
 PRODUCT_PACKAGES += \
+    abb \
     adb \
     adbd \
     am \
@@ -48,9 +49,9 @@
     bu \
     bugreport \
     bugreportz \
-    cameraserver \
     charger \
     cmd \
+    com.android.conscrypt \
     com.android.location.provider \
     com.android.resolv \
     com.android.tzdata \
@@ -61,6 +62,7 @@
     CtsShimPrivPrebuilt \
     debuggerd\
     DefaultContainerService \
+    dmctl \
     dnsmasq \
     DownloadProvider \
     dpm \
@@ -81,7 +83,6 @@
     heapprofd_client \
     gatekeeperd \
     gpuservice \
-    healthd \
     hid \
     hwservicemanager \
     idmap \
@@ -117,14 +118,14 @@
     libaudioutils \
     libbinder \
     libbinder_ndk \
-    libc \
+    libc.bootstrap \
     libcamera2ndk \
     libcamera_client \
     libcameraservice \
     libc_malloc_debug \
     libc_malloc_hooks \
     libcutils \
-    libdl \
+    libdl.bootstrap \
     libdrmframework \
     libdrmframework_jni \
     libEGL \
@@ -144,7 +145,7 @@
     libjnigraphics \
     libjpeg \
     liblog \
-    libm \
+    libm.bootstrap \
     libmdnssd \
     libmedia \
     libmedia_jni \
@@ -194,6 +195,7 @@
     locksettings \
     logcat \
     logd \
+    lpdump \
     lshal \
     mdnsd \
     media \
@@ -205,10 +207,12 @@
     MediaProvider \
     mediaserver \
     mke2fs \
+    ModuleMetadata \
     monkey \
     mtpd \
     ndc \
     netd \
+    NetworkStack \
     org.apache.http.legacy \
     perfetto \
     ping \
@@ -220,6 +224,7 @@
     racoon \
     recovery-persist \
     resize2fs \
+    rss_hwm_reset \
     run-as \
     schedtest \
     screencap \
@@ -312,14 +317,10 @@
 # Packages included only for eng or userdebug builds, previously debug tagged
 PRODUCT_PACKAGES_DEBUG := \
     adb_keys \
-    apex.test.key \
     arping \
-    com.android.apex.test_package.key \
-    com.android.apex.test_package.preinstall.key \
     iotop \
     iw \
     logpersist.start \
-    perfprofd \
     procrank \
     showmap \
     sqlite3 \
diff --git a/target/product/base_vendor.mk b/target/product/base_vendor.mk
index 9bb45d1..1bb4bee 100644
--- a/target/product/base_vendor.mk
+++ b/target/product/base_vendor.mk
@@ -53,6 +53,10 @@
     vndservice \
     vndservicemanager \
 
+# Base modules and settings for the product partition.
+PRODUCT_PACKAGES += \
+    healthd \
+
 # VINTF data for vendor image
 PRODUCT_PACKAGES += \
     device_manifest.xml \
diff --git a/target/product/go_defaults_common.mk b/target/product/go_defaults_common.mk
index 18907c1..06bdec9 100644
--- a/target/product/go_defaults_common.mk
+++ b/target/product/go_defaults_common.mk
@@ -61,6 +61,10 @@
 # Do not generate libartd.
 PRODUCT_ART_TARGET_INCLUDE_DEBUG_BUILD := false
 
+# Do not spin up a separate process for the network stack on go devices, use an in-process lib.
+PRODUCT_PACKAGES += NetworkStackLib
+PRODUCT_SYSTEM_SERVER_JARS += NetworkStackLib
+
 # Strip the local variable table and the local variable type table to reduce
 # the size of the system image. This has no bearing on stack traces, but will
 # leave less information available via JDWP.
diff --git a/target/product/vndk/28.txt b/target/product/gsi/28.txt
similarity index 100%
rename from target/product/vndk/28.txt
rename to target/product/gsi/28.txt
diff --git a/target/product/vndk/Android.mk b/target/product/gsi/Android.mk
similarity index 100%
rename from target/product/vndk/Android.mk
rename to target/product/gsi/Android.mk
diff --git a/target/product/vndk/OWNERS b/target/product/gsi/OWNERS
similarity index 100%
rename from target/product/vndk/OWNERS
rename to target/product/gsi/OWNERS
diff --git a/target/product/vndk/current.txt b/target/product/gsi/current.txt
similarity index 98%
rename from target/product/vndk/current.txt
rename to target/product/gsi/current.txt
index e8f61a4..17d2f1b 100644
--- a/target/product/vndk/current.txt
+++ b/target/product/gsi/current.txt
@@ -43,7 +43,6 @@
 VNDK-SP: libhwbinder_noltopgo.so
 VNDK-SP: libion.so
 VNDK-SP: liblzma.so
-VNDK-SP: libunwind.so
 VNDK-SP: libunwindstack.so
 VNDK-SP: libutils.so
 VNDK-SP: libutilscallstack.so
@@ -119,7 +118,9 @@
 VNDK-core: android.hardware.neuralnetworks@1.2.so
 VNDK-core: android.hardware.nfc@1.0.so
 VNDK-core: android.hardware.nfc@1.1.so
+VNDK-core: android.hardware.nfc@1.2.so
 VNDK-core: android.hardware.oemlock@1.0.so
+VNDK-core: android.hardware.power.stats@1.0.so
 VNDK-core: android.hardware.power@1.0.so
 VNDK-core: android.hardware.power@1.1.so
 VNDK-core: android.hardware.power@1.2.so
@@ -262,4 +263,3 @@
 VNDK-private: libcompiler_rt.so
 VNDK-private: libft2.so
 VNDK-private: libgui.so
-VNDK-private: libunwind.so
diff --git a/target/product/gsi/init.gsi.rc b/target/product/gsi/init.gsi.rc
new file mode 100644
index 0000000..c6faba7
--- /dev/null
+++ b/target/product/gsi/init.gsi.rc
@@ -0,0 +1,3 @@
+#
+# Android init script for GSI required initialization
+#
diff --git a/target/product/vndk/init.legacy-gsi.rc b/target/product/gsi/init.legacy-gsi.rc
similarity index 100%
rename from target/product/vndk/init.legacy-gsi.rc
rename to target/product/gsi/init.legacy-gsi.rc
diff --git a/target/product/vndk/init.vndk-27.rc b/target/product/gsi/init.vndk-27.rc
similarity index 100%
rename from target/product/vndk/init.vndk-27.rc
rename to target/product/gsi/init.vndk-27.rc
diff --git a/target/product/gsi/skip_mount.cfg b/target/product/gsi/skip_mount.cfg
new file mode 100644
index 0000000..549767e
--- /dev/null
+++ b/target/product/gsi/skip_mount.cfg
@@ -0,0 +1,2 @@
+/product
+/product_services
diff --git a/target/product/handheld_system.mk b/target/product/handheld_system.mk
index a961d1e..0a763fb 100644
--- a/target/product/handheld_system.mk
+++ b/target/product/handheld_system.mk
@@ -36,52 +36,33 @@
     Bluetooth \
     BluetoothMidiService \
     BookmarkProvider \
-    Browser2 \
     BuiltInPrintService \
-    Calendar \
     CalendarProvider \
-    Camera2 \
+    cameraserver \
     CaptivePortalLogin \
     CertInstaller \
     clatd \
     clatd.conf \
-    Contacts \
-    DeskClock \
     DocumentsUI \
     DownloadProviderUi \
     EasterEgg \
-    Email \
-    ExactCalculator \
     ExternalStorageProvider \
     FusedLocation \
-    Gallery2 \
-    Home \
     InputDevices \
     KeyChain \
-    LatinIME \
-    Launcher3QuickStep \
     librs_jni \
     ManagedProvisioning \
     MmsService \
     MtpDocumentsProvider \
-    Music \
     MusicFX \
     NfcNci \
-    OneTimeInitializer \
     PacProcessor \
-    PrintRecommendationService \
     PrintSpooler \
-    Provision \
     ProxyHandler \
-    QuickSearchBox \
     screenrecord \
     SecureElement \
-    Settings \
-    SettingsIntelligence \
     SharedStorageBackup \
     SimAppDialog \
-    StorageManager \
-    SystemUI \
     Telecom \
     TelephonyProvider \
     TeleService \
@@ -89,7 +70,6 @@
     UserDictionaryProvider \
     VpnDialogs \
     vr \
-    WallpaperCropper \
 
 
 PRODUCT_SYSTEM_SERVER_APPS += \
@@ -105,4 +85,3 @@
     ro.carrier=unknown \
     ro.config.notification_sound=OnTheHunt.ogg \
     ro.config.alarm_alert=Alarm_Classic.ogg
-
diff --git a/target/product/handheld_vendor.mk b/target/product/handheld_vendor.mk
index 0f73875..b9970e9 100644
--- a/target/product/handheld_vendor.mk
+++ b/target/product/handheld_vendor.mk
@@ -19,6 +19,8 @@
 # it definitely doesn't belong on other types of devices (if it
 # does, use base_vendor.mk).
 $(call inherit-product, $(SRC_TARGET_DIR)/product/media_vendor.mk)
+
+# /vendor packages
 PRODUCT_PACKAGES += \
     audio.primary.default \
     DisplayCutoutEmulationCornerOverlay \
@@ -28,3 +30,25 @@
     power.default \
     SysuiDarkThemeOverlay \
     vibrator.default \
+
+# /product packages
+PRODUCT_PACKAGES += \
+    Browser2 \
+    Calendar \
+    Camera2 \
+    Contacts \
+    DeskClock \
+    Email \
+    Gallery2 \
+    LatinIME \
+    Launcher3QuickStep \
+    Music \
+    OneTimeInitializer \
+    PrintRecommendationService \
+    Provision \
+    QuickSearchBox \
+    Settings \
+    SettingsIntelligence \
+    StorageManager \
+    SystemUI \
+    WallpaperCropper \
diff --git a/target/product/languages_default.mk b/target/product/languages_default.mk
new file mode 100644
index 0000000..a13a23c
--- /dev/null
+++ b/target/product/languages_default.mk
@@ -0,0 +1,105 @@
+#
+# Copyright (C) 2009 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.
+#
+
+# This is a build configuration that just contains a list of languages, with
+# en_US set as the default language.
+PRODUCT_LOCALES := \
+        en_US \
+        af_ZA \
+        am_ET \
+        ar_EG \
+        ar_XB \
+        as_IN \
+        az_AZ \
+        be_BY \
+        bg_BG \
+        bn_BD \
+        bs_BA \
+        ca_ES \
+        cs_CZ \
+        da_DK \
+        de_DE \
+        el_GR \
+        en_AU \
+        en_CA \
+        en_GB \
+        en_IN \
+        en_XA \
+        es_ES \
+        es_US \
+        et_EE \
+        eu_ES \
+        fa_IR \
+        fi_FI \
+        fr_CA \
+        fr_FR \
+        gl_ES \
+        gu_IN \
+        hi_IN \
+        hr_HR \
+        hu_HU \
+        hy_AM \
+        in_ID \
+        is_IS \
+        it_IT \
+        iw_IL \
+        ja_JP \
+        ka_GE \
+        kk_KZ \
+        km_KH \
+        kn_IN \
+        ko_KR \
+        ky_KG \
+        lo_LA \
+        lt_LT \
+        lv_LV \
+        mk_MK \
+        ml_IN \
+        mn_MN \
+        mr_IN \
+        ms_MY \
+        my_MM \
+        nb_NO \
+        ne_NP \
+        nl_NL \
+        or_IN \
+        pa_IN \
+        pl_PL \
+        pt_BR \
+        pt_PT \
+        ro_RO \
+        ru_RU \
+        si_LK \
+        sk_SK \
+        sl_SI \
+        sq_AL \
+        sr_Latn_RS \
+        sr_RS \
+        sv_SE \
+        sw_TZ \
+        ta_IN \
+        te_IN \
+        th_TH \
+        tl_PH \
+        tr_TR \
+        uk_UA \
+        ur_PK \
+        uz_UZ \
+        vi_VN \
+        zh_CN \
+        zh_HK \
+        zh_TW \
+        zu_ZA \
diff --git a/target/product/languages_full.mk b/target/product/languages_full.mk
index 5f3795f..43a40a7 100644
--- a/target/product/languages_full.mk
+++ b/target/product/languages_full.mk
@@ -14,94 +14,9 @@
 # limitations under the License.
 #
 
-# This is a build configuration that just contains a list of languages.
-#
-# These are all the locales that have translations.
-PRODUCT_LOCALES := \
-        en_US \
-        af_ZA \
-        am_ET \
-        ar_EG \
-        ar_XB \
-        as_IN \
-        az_AZ \
-        be_BY \
-        bg_BG \
-        bn_BD \
-        bs_BA \
-        ca_ES \
-        cs_CZ \
-        da_DK \
-        de_DE \
-        el_GR \
-        en_AU \
-        en_CA \
-        en_GB \
-        en_IN \
-        en_XA \
-        en_XC \
-        es_ES \
-        es_US \
-        et_EE \
-        eu_ES \
-        fa_IR \
-        fi_FI \
-        fr_CA \
-        fr_FR \
-        gl_ES \
-        gu_IN \
-        hi_IN \
-        hr_HR \
-        hu_HU \
-        hy_AM \
-        in_ID \
-        is_IS \
-        it_IT \
-        iw_IL \
-        ja_JP \
-        ka_GE \
-        kk_KZ \
-        km_KH \
-        kn_IN \
-        ko_KR \
-        ky_KG \
-        lo_LA \
-        lt_LT \
-        lv_LV \
-        mk_MK \
-        ml_IN \
-        mn_MN \
-        mr_IN \
-        ms_MY \
-        my_MM \
-        nb_NO \
-        ne_NP \
-        nl_NL \
-        or_IN \
-        pa_IN \
-        pl_PL \
-        pt_BR \
-        pt_PT \
-        ro_RO \
-        ru_RU \
-        si_LK \
-        sk_SK \
-        sl_SI \
-        sq_AL \
-        sr_Latn_RS \
-        sr_RS \
-        sv_SE \
-        sw_TZ \
-        ta_IN \
-        te_IN \
-        th_TH \
-        tl_PH \
-        tr_TR \
-        uk_UA \
-        ur_PK \
-        uz_UZ \
-        vi_VN \
-        zh_CN \
-        zh_HK \
-        zh_TW \
-        zu_ZA
+# This is a build configuration that contains the default list of languages,
+# as well as the en_XC pseudo-locale, which is useful for localization test
+# builds.
+
+$(call inherit-product, $(SRC_TARGET_DIR)/product/languages_default.mk)
+PRODUCT_LOCALES += en_XC
diff --git a/target/product/languages_small.mk b/target/product/languages_small.mk
deleted file mode 100644
index d695ca8..0000000
--- a/target/product/languages_small.mk
+++ /dev/null
@@ -1,24 +0,0 @@
-#
-# Copyright (C) 2009 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.
-#
-
-# This is a build configuration that just contains a list of languages.
-# It helps in situations where laugnages must come first in the list,
-# mostly because screen densities interfere with the list of locales and
-# the system misbehaves when a density is the first locale.
-
-# This is the list of languages that originally shipped on ADP1
-
-PRODUCT_LOCALES := en_US en_GB fr_FR it_IT de_DE es_ES
diff --git a/target/product/mainline.mk b/target/product/mainline.mk
new file mode 100644
index 0000000..44dcd60
--- /dev/null
+++ b/target/product/mainline.mk
@@ -0,0 +1,21 @@
+#
+# Copyright (C) 2019 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.
+#
+
+# Makefile including the mainline system image, and the relevant AOSP portions
+# for the other partitions.
+$(call inherit-product, $(SRC_TARGET_DIR)/product/mainline_system.mk)
+$(call inherit-product, $(SRC_TARGET_DIR)/product/handheld_vendor.mk)
+$(call inherit-product, $(SRC_TARGET_DIR)/product/telephony_vendor.mk)
diff --git a/target/product/mainline_arm64.mk b/target/product/mainline_arm64.mk
index cc04844..6122ac1 100644
--- a/target/product/mainline_arm64.mk
+++ b/target/product/mainline_arm64.mk
@@ -15,9 +15,7 @@
 #
 
 $(call inherit-product, $(SRC_TARGET_DIR)/product/core_64_bit.mk)
-$(call inherit-product, $(SRC_TARGET_DIR)/product/mainline_system.mk)
-$(call inherit-product, $(SRC_TARGET_DIR)/product/handheld_vendor.mk)
-$(call inherit-product, $(SRC_TARGET_DIR)/product/telephony_vendor.mk)
+$(call inherit-product, $(SRC_TARGET_DIR)/product/mainline.mk)
 
 PRODUCT_NAME := mainline_arm64
 PRODUCT_DEVICE := generic_arm64
@@ -25,8 +23,47 @@
 PRODUCT_SHIPPING_API_LEVEL := 28
 PRODUCT_RESTRICT_VENDOR_FILES := all
 
-PRODUCT_ENFORCE_ARTIFACT_PATH_REQUIREMENTS := true
-PRODUCT_ARTIFACT_PATH_REQUIREMENT_WHITELIST := \
+PRODUCT_ENFORCE_ARTIFACT_PATH_REQUIREMENTS := relaxed
+# Target device doesn't have a product partition, so whitelist the /system/ fallback path.
+PRODUCT_ARTIFACT_PATH_REQUIREMENT_WHITELIST := system/product/%
+PRODUCT_ARTIFACT_PATH_REQUIREMENT_WHITELIST += \
   root/init.zygote64_32.rc \
   system/etc/seccomp_policy/crash_dump.arm.policy \
   system/etc/seccomp_policy/mediacodec.policy \
+
+# Modules that are to be moved to /product
+PRODUCT_ARTIFACT_PATH_REQUIREMENT_WHITELIST += \
+  system/app/Browser2/Browser2.apk \
+  system/app/Calendar/Calendar.apk \
+  system/app/Camera2/Camera2.apk \
+  system/app/DeskClock/DeskClock.apk \
+  system/app/Email/Email.apk \
+  system/app/Gallery2/Gallery2.apk \
+  system/app/LatinIME/LatinIME.apk \
+  system/app/LatinIME/oat/arm64/LatinIME.odex \
+  system/app/LatinIME/oat/arm64/LatinIME.vdex \
+  system/app/Music/Music.apk \
+  system/app/PrintRecommendationService/PrintRecommendationService.apk \
+  system/app/QuickSearchBox/QuickSearchBox.apk \
+  system/bin/healthd \
+  system/etc/init/healthd.rc \
+  system/etc/vintf/manifest/manifest_healthd.xml \
+  system/lib64/libjni_eglfence.so \
+  system/lib64/libjni_filtershow_filters.so \
+  system/lib64/libjni_jpegstream.so \
+  system/lib64/libjni_jpegutil.so \
+  system/lib64/libjni_latinime.so \
+  system/lib64/libjni_tinyplanet.so \
+  system/priv-app/CarrierConfig/CarrierConfig.apk \
+  system/priv-app/Contacts/Contacts.apk \
+  system/priv-app/Dialer/Dialer.apk \
+  system/priv-app/Launcher3QuickStep/Launcher3QuickStep.apk \
+  system/priv-app/OneTimeInitializer/OneTimeInitializer.apk \
+  system/priv-app/Provision/Provision.apk \
+  system/priv-app/Settings/Settings.apk \
+  system/priv-app/SettingsIntelligence/SettingsIntelligence.apk \
+  system/priv-app/StorageManager/StorageManager.apk \
+  system/priv-app/SystemUI/SystemUI.apk \
+  system/priv-app/SystemUI/oat/arm64/SystemUI.odex \
+  system/priv-app/SystemUI/oat/arm64/SystemUI.vdex \
+  system/priv-app/WallpaperCropper/WallpaperCropper.apk \
diff --git a/target/product/mainline_system.mk b/target/product/mainline_system.mk
index c41e1d7..b9b422f 100644
--- a/target/product/mainline_system.mk
+++ b/target/product/mainline_system.mk
@@ -17,6 +17,9 @@
 # This makefile is the basis of a generic system image for a handheld device.
 $(call inherit-product, $(SRC_TARGET_DIR)/product/handheld_system.mk)
 $(call inherit-product, $(SRC_TARGET_DIR)/product/telephony_system.mk)
+$(call inherit-product, $(SRC_TARGET_DIR)/product/languages_default.mk)
+# Add adb keys to debuggable AOSP builds (if they exist)
+$(call inherit-product-if-exists, vendor/google/security/adb/vendor_key.mk)
 
 # Shared java libs
 PRODUCT_PACKAGES += \
@@ -31,6 +34,7 @@
     RcsService \
     SafetyRegulatoryInfo \
     Stk \
+    Tag \
     TimeZoneUpdater \
 
 # Binaries
@@ -71,6 +75,7 @@
     android.hardware.radio.deprecated@1.0 \
     android.hardware.secure_element@1.0 \
     android.hardware.tests.libhwbinder@1.0-impl \
+    android.hardware.wifi@1.0 \
     android.hidl.base@1.0 \
     libaudio-resampler \
     liblogwrap \
@@ -97,8 +102,6 @@
 # Enable dynamic partition size
 PRODUCT_USE_DYNAMIC_PARTITION_SIZE := true
 
-PRODUCT_LOCALES := en_US af_ZA am_ET ar_EG as_IN az_AZ be_BY bg_BG bn_BD bs_BA ca_ES cs_CZ da_DK de_DE el_GR en_AU en_CA en_GB en_IN es_ES es_US et_EE eu_ES fa_IR fi_FI fr_CA fr_FR gl_ES gu_IN hi_IN hr_HR hu_HU hy_AM in_ID is_IS it_IT iw_IL ja_JP ka_GE kk_KZ km_KH ko_KR ky_KG lo_LA lt_LT lv_LV km_MH kn_IN mn_MN ml_IN mk_MK mr_IN ms_MY my_MM ne_NP nb_NO nl_NL or_IN pa_IN pl_PL pt_BR pt_PT ro_RO ru_RU si_LK sk_SK sl_SI sq_AL sr_Latn_RS sr_RS sv_SE sw_TZ ta_IN te_IN th_TH tl_PH tr_TR uk_UA ur_PK uz_UZ vi_VN zh_CN zh_HK zh_TW zu_ZA en_XA ar_XB
-
 PRODUCT_NAME := mainline_system
 PRODUCT_BRAND := generic
 
diff --git a/target/product/media_vendor.mk b/target/product/media_vendor.mk
index 1db0b58..f30e6f3 100644
--- a/target/product/media_vendor.mk
+++ b/target/product/media_vendor.mk
@@ -20,6 +20,11 @@
 # base_vendor.mk.
 $(call inherit-product, $(SRC_TARGET_DIR)/product/base_vendor.mk)
 
+# /vendor packages
 PRODUCT_PACKAGES += \
     libaudiopreprocessing \
     libwebrtc_audio_preprocessing \
+
+# /product packages
+PRODUCT_PACKAGES += \
+    webview \
diff --git a/target/product/product_launched_with_k.mk b/target/product/product_launched_with_k.mk
new file mode 100644
index 0000000..87faa12
--- /dev/null
+++ b/target/product/product_launched_with_k.mk
@@ -0,0 +1,2 @@
+#PRODUCT_SHIPPING_API_LEVEL indicates the first api level, device has been commercially launched on.
+PRODUCT_SHIPPING_API_LEVEL := 19
diff --git a/target/product/product_launched_with_l.mk b/target/product/product_launched_with_l.mk
index 6e782f7..4e79749 100644
--- a/target/product/product_launched_with_l.mk
+++ b/target/product/product_launched_with_l.mk
@@ -1,3 +1,2 @@
 #PRODUCT_SHIPPING_API_LEVEL indicates the first api level, device has been commercially launched on.
 PRODUCT_SHIPPING_API_LEVEL := 21
-
diff --git a/target/product/runtime_libart.mk b/target/product/runtime_libart.mk
index 6d835fd..71834aa 100644
--- a/target/product/runtime_libart.mk
+++ b/target/product/runtime_libart.mk
@@ -100,4 +100,5 @@
 
 # Enable minidebuginfo generation unless overridden.
 PRODUCT_SYSTEM_DEFAULT_PROPERTIES += \
+    dalvik.vm.minidebuginfo=true \
     dalvik.vm.dex2oat-minidebuginfo=true
diff --git a/target/product/telephony_system.mk b/target/product/telephony_system.mk
index 0b1e8a2..e30f036 100644
--- a/target/product/telephony_system.mk
+++ b/target/product/telephony_system.mk
@@ -19,9 +19,7 @@
 
 PRODUCT_PACKAGES := \
     ANS \
-    CarrierConfig \
     CarrierDefaultApp \
-    Dialer \
     CallLogBackup \
     CellBroadcastReceiver \
     EmergencyInfo \
diff --git a/target/product/telephony_vendor.mk b/target/product/telephony_vendor.mk
index bddd383..4cff16d 100644
--- a/target/product/telephony_vendor.mk
+++ b/target/product/telephony_vendor.mk
@@ -17,7 +17,13 @@
 # This is the list of modules that are specific to products that have telephony
 # hardware, and install outside the system partition.
 
+# /vendor packages
 PRODUCT_PACKAGES := \
     rild \
 
+# /product packages
+PRODUCT_PACKAGES += \
+    CarrierConfig \
+    Dialer \
+
 PRODUCT_COPY_FILES := \
diff --git a/target/product/treble_common.mk b/target/product/treble_common.mk
index bbad484..7642876 100644
--- a/target/product/treble_common.mk
+++ b/target/product/treble_common.mk
@@ -38,7 +38,7 @@
 # Telephony:
 #   Provide a default APN configuration
 PRODUCT_COPY_FILES += \
-    device/generic/goldfish/data/etc/apns-conf.xml:system/etc/apns-conf.xml
+    device/sample/etc/apns-full-conf.xml:system/etc/apns-conf.xml
 
 # NFC:
 #   Provide default libnfc-nci.conf file for devices that does not have one in
@@ -48,12 +48,13 @@
 
 # GSI specific tasks on boot
 PRODUCT_COPY_FILES += \
-    build/make/target/product/vndk/init.gsi.rc:system/etc/init/init.gsi.rc
+    build/make/target/product/gsi/skip_mount.cfg:system/etc/init/config/skip_mount.cfg \
+    build/make/target/product/gsi/init.gsi.rc:system/etc/init/init.gsi.rc \
 
 # Support for the O-MR1 devices
 PRODUCT_COPY_FILES += \
-    build/make/target/product/vndk/init.legacy-gsi.rc:system/etc/init/init.legacy-gsi.rc \
-    build/make/target/product/vndk/init.vndk-27.rc:system/etc/init/gsi/init.vndk-27.rc
+    build/make/target/product/gsi/init.legacy-gsi.rc:system/etc/init/init.legacy-gsi.rc \
+    build/make/target/product/gsi/init.vndk-27.rc:system/etc/init/gsi/init.vndk-27.rc
 
 # Name space configuration file for non-enforcing VNDK
 PRODUCT_PACKAGES += \
diff --git a/target/product/vndk/init.gsi.rc b/target/product/vndk/init.gsi.rc
deleted file mode 100644
index 695820e..0000000
--- a/target/product/vndk/init.gsi.rc
+++ /dev/null
@@ -1,2 +0,0 @@
-on early-init
-    umount /product   # TODO(b/119391482): workaround for /system/product
diff --git a/tools/Android.mk b/tools/Android.mk
deleted file mode 100644
index c05d681..0000000
--- a/tools/Android.mk
+++ /dev/null
@@ -1,23 +0,0 @@
-#
-# Copyright (C) 2010 The Android Open Source Project
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-LOCAL_PATH := $(call my-dir)
-
-# Only if this Android.mk was included not by a symlink should it be used.
-# This facilitates the transition away from symlinks: b/64397960
-ifeq ($(LOCAL_PATH),build/make/tools)
-include $(call all-makefiles-under,$(LOCAL_PATH))
-endif
diff --git a/tools/buildinfo.sh b/tools/buildinfo.sh
index c2e6f85..7286f95 100755
--- a/tools/buildinfo.sh
+++ b/tools/buildinfo.sh
@@ -8,6 +8,7 @@
 echo "ro.build.version.incremental=$BUILD_NUMBER"
 echo "ro.build.version.sdk=$PLATFORM_SDK_VERSION"
 echo "ro.build.version.preview_sdk=$PLATFORM_PREVIEW_SDK_VERSION"
+echo "ro.build.version.preview_sdk_fingerprint=$PLATFORM_PREVIEW_SDK_FINGERPRINT"
 echo "ro.build.version.codename=$PLATFORM_VERSION_CODENAME"
 echo "ro.build.version.all_codenames=$PLATFORM_VERSION_ALL_CODENAMES"
 echo "ro.build.version.release=$PLATFORM_VERSION"
@@ -17,8 +18,8 @@
 echo "ro.build.date=`$DATE`"
 echo "ro.build.date.utc=`$DATE +%s`"
 echo "ro.build.type=$TARGET_BUILD_TYPE"
-echo "ro.build.user=$USER"
-echo "ro.build.host=`hostname`"
+echo "ro.build.user=$BUILD_USERNAME"
+echo "ro.build.host=$BUILD_HOSTNAME"
 echo "ro.build.tags=$BUILD_VERSION_TAGS"
 echo "ro.build.flavor=$TARGET_BUILD_FLAVOR"
 if [ -n "$BOARD_BUILD_SYSTEM_ROOT_IMAGE" ] ; then
diff --git a/tools/droiddoc/Android.mk b/tools/droiddoc/Android.mk
deleted file mode 100644
index ff08edc..0000000
--- a/tools/droiddoc/Android.mk
+++ /dev/null
@@ -1,17 +0,0 @@
-# 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.
-
-LOCAL_PATH := $(call my-dir)
-
-# Droiddoc is now Doclava -- See external/doclava.
diff --git a/tools/fs_config/OWNERS b/tools/fs_config/OWNERS
new file mode 100644
index 0000000..5599644
--- /dev/null
+++ b/tools/fs_config/OWNERS
@@ -0,0 +1,2 @@
+tomcherry@google.com
+salyzyn@google.com
diff --git a/tools/fs_config/fs_config_generate.c b/tools/fs_config/fs_config_generate.c
index 0f0603b..dddd331 100644
--- a/tools/fs_config/fs_config_generate.c
+++ b/tools/fs_config/fs_config_generate.c
@@ -41,22 +41,7 @@
 #endif
 
 #ifdef NO_ANDROID_FILESYSTEM_CONFIG_DEVICE_FILES
-static const struct fs_path_config android_device_files[] = {
-#ifdef NO_ANDROID_FILESYSTEM_CONFIG_DEVICE_DIRS
-    {0000, AID_ROOT, AID_ROOT, 0, "system/etc/fs_config_dirs"},
-    {0000, AID_ROOT, AID_ROOT, 0, "vendor/etc/fs_config_dirs"},
-    {0000, AID_ROOT, AID_ROOT, 0, "oem/etc/fs_config_dirs"},
-    {0000, AID_ROOT, AID_ROOT, 0, "odm/etc/fs_config_dirs"},
-    {0000, AID_ROOT, AID_ROOT, 0, "product/etc/fs_config_dirs"},
-    {0000, AID_ROOT, AID_ROOT, 0, "product_services/etc/fs_config_dirs"},
-#endif
-    {0000, AID_ROOT, AID_ROOT, 0, "system/etc/fs_config_files"},
-    {0000, AID_ROOT, AID_ROOT, 0, "vendor/etc/fs_config_files"},
-    {0000, AID_ROOT, AID_ROOT, 0, "oem/etc/fs_config_files"},
-    {0000, AID_ROOT, AID_ROOT, 0, "odm/etc/fs_config_files"},
-    {0000, AID_ROOT, AID_ROOT, 0, "product/etc/fs_config_files"},
-    {0000, AID_ROOT, AID_ROOT, 0, "product_services/etc/fs_config_files"},
-};
+static const struct fs_path_config android_device_files[] = { };
 #endif
 
 static void usage() {
diff --git a/tools/fs_config/fs_config_generator.py b/tools/fs_config/fs_config_generator.py
index f7e3eb2..0a8def8 100755
--- a/tools/fs_config/fs_config_generator.py
+++ b/tools/fs_config/fs_config_generator.py
@@ -909,22 +909,6 @@
         '#warning No device-supplied android_filesystem_config.h,'
         ' using empty default.')
 
-    # Long names.
-    # pylint: disable=invalid-name
-    _NO_ANDROID_FILESYSTEM_CONFIG_DEVICE_DIRS_ENTRY = (
-        '{ 00000, AID_ROOT, AID_ROOT, 0,'
-        '"system/etc/fs_config_dirs" },')
-
-    _NO_ANDROID_FILESYSTEM_CONFIG_DEVICE_FILES_ENTRY = (
-        '{ 00000, AID_ROOT, AID_ROOT, 0,'
-        '"system/etc/fs_config_files" },')
-
-    _IFDEF_ANDROID_FILESYSTEM_CONFIG_DEVICE_DIRS = (
-        '#ifdef NO_ANDROID_FILESYSTEM_CONFIG_DEVICE_DIRS')
-    # pylint: enable=invalid-name
-
-    _ENDIF = '#endif'
-
     _OPEN_FILE_STRUCT = (
         'static const struct fs_path_config android_device_files[] = {')
 
@@ -1082,12 +1066,6 @@
             for fs_config in files:
                 self._to_fs_entry(fs_config)
 
-            if not are_dirs:
-                print FSConfigGen._IFDEF_ANDROID_FILESYSTEM_CONFIG_DEVICE_DIRS
-                print(
-                    '    ' +
-                    FSConfigGen._NO_ANDROID_FILESYSTEM_CONFIG_DEVICE_DIRS_ENTRY)
-                print FSConfigGen._ENDIF
             print FSConfigGen._CLOSE_FILE_STRUCT
 
         if are_dirs:
@@ -1316,6 +1294,28 @@
 
         print "%s::%s:" % (logon, uid)
 
+@generator('print')
+class PrintGen(BaseGenerator):
+    """Prints just the constants and values, separated by spaces, in an easy to
+    parse format for use by other scripts.
+
+    Each line is just the identifier and the value, separated by a space.
+    """
+
+    def add_opts(self, opt_group):
+        opt_group.add_argument(
+            'aid-header', help='An android_filesystem_config.h file.')
+
+    def __call__(self, args):
+
+        hdr_parser = AIDHeaderParser(args['aid-header'])
+        aids = hdr_parser.aids
+
+        aids.sort(key=lambda item: int(item.normalized_value))
+
+        for aid in aids:
+            print '%s %s' % (aid.identifier, aid.normalized_value)
+
 
 def main():
     """Main entry point for execution."""
diff --git a/tools/releasetools/add_img_to_target_files.py b/tools/releasetools/add_img_to_target_files.py
index 1872a58..da5ea4a 100755
--- a/tools/releasetools/add_img_to_target_files.py
+++ b/tools/releasetools/add_img_to_target_files.py
@@ -859,11 +859,12 @@
     banner("vbmeta")
     AddVBMeta(output_zip, partitions, "vbmeta", vbmeta_partitions)
 
-  if OPTIONS.info_dict.get("build_super_partition"):
+  if OPTIONS.info_dict.get("build_super_partition") == "true":
     banner("super_empty")
     AddSuperEmpty(output_zip)
 
-    if OPTIONS.info_dict.get("dynamic_partition_retrofit") == "true":
+    if OPTIONS.info_dict.get(
+        "build_retrofit_dynamic_partitions_ota_package") == "true":
       banner("super split images")
       AddSuperSplit(output_zip)
 
diff --git a/tools/releasetools/blockimgdiff.py b/tools/releasetools/blockimgdiff.py
index 2d20e23..80d4023 100644
--- a/tools/releasetools/blockimgdiff.py
+++ b/tools/releasetools/blockimgdiff.py
@@ -26,7 +26,8 @@
 import re
 import sys
 import threading
-from collections import deque, OrderedDict
+import zlib
+from collections import deque, namedtuple, OrderedDict
 from hashlib import sha1
 
 import common
@@ -36,8 +37,12 @@
 
 logger = logging.getLogger(__name__)
 
+# The tuple contains the style and bytes of a bsdiff|imgdiff patch.
+PatchInfo = namedtuple("PatchInfo", ["imgdiff", "content"])
+
 
 def compute_patch(srcfile, tgtfile, imgdiff=False):
+  """Calls bsdiff|imgdiff to compute the patch data, returns a PatchInfo."""
   patchfile = common.MakeTempFile(prefix='patch-')
 
   cmd = ['imgdiff', '-z'] if imgdiff else ['bsdiff']
@@ -52,7 +57,7 @@
     raise ValueError(output)
 
   with open(patchfile, 'rb') as f:
-    return f.read()
+    return PatchInfo(imgdiff, f.read())
 
 
 class Image(object):
@@ -203,17 +208,17 @@
     self.id = len(by_id)
     by_id.append(self)
 
-    self._patch = None
+    self._patch_info = None
 
   @property
-  def patch(self):
-    return self._patch
+  def patch_info(self):
+    return self._patch_info
 
-  @patch.setter
-  def patch(self, patch):
-    if patch:
+  @patch_info.setter
+  def patch_info(self, info):
+    if info:
       assert self.style == "diff"
-    self._patch = patch
+    self._patch_info = info
 
   def NetStashChange(self):
     return (sum(sr.size() for (_, sr) in self.stash_before) -
@@ -224,7 +229,7 @@
     self.use_stash = []
     self.style = "new"
     self.src_ranges = RangeSet()
-    self.patch = None
+    self.patch_info = None
 
   def __str__(self):
     return (str(self.id) + ": <" + str(self.src_ranges) + " " + self.style +
@@ -462,19 +467,27 @@
     self.AbbreviateSourceNames()
     self.FindTransfers()
 
-    # Find the ordering dependencies among transfers (this is O(n^2)
-    # in the number of transfers).
-    self.GenerateDigraph()
-    # Find a sequence of transfers that satisfies as many ordering
-    # dependencies as possible (heuristically).
-    self.FindVertexSequence()
-    # Fix up the ordering dependencies that the sequence didn't
-    # satisfy.
-    self.ReverseBackwardEdges()
-    self.ImproveVertexSequence()
+    self.FindSequenceForTransfers()
 
     # Ensure the runtime stash size is under the limit.
     if common.OPTIONS.cache_size is not None:
+      stash_limit = (common.OPTIONS.cache_size *
+                     common.OPTIONS.stash_threshold / self.tgt.blocksize)
+      # Ignore the stash limit and calculate the maximum simultaneously stashed
+      # blocks needed.
+      _, max_stashed_blocks = self.ReviseStashSize(ignore_stash_limit=True)
+
+      # We cannot stash more blocks than the stash limit simultaneously. As a
+      # result, some 'diff' commands will be converted to new; leading to an
+      # unintended large package. To mitigate this issue, we can carefully
+      # choose the transfers for conversion. The number '1024' can be further
+      # tweaked here to balance the package size and build time.
+      if max_stashed_blocks > stash_limit + 1024:
+        self.SelectAndConvertDiffTransfersToNew()
+        # Regenerate the sequence as the graph has changed.
+        self.FindSequenceForTransfers()
+
+      # Revise the stash size again to keep the size under limit.
       self.ReviseStashSize()
 
     # Double-check our work.
@@ -704,7 +717,21 @@
           "max stashed blocks: %d  (%d bytes), limit: <unknown>\n",
           max_stashed_blocks, self._max_stashed_size)
 
-  def ReviseStashSize(self):
+  def ReviseStashSize(self, ignore_stash_limit=False):
+    """ Revises the transfers to keep the stash size within the size limit.
+
+    Iterates through the transfer list and calculates the stash size each
+    transfer generates. Converts the affected transfers to new if we reach the
+    stash limit.
+
+    Args:
+      ignore_stash_limit: Ignores the stash limit and calculates the max
+      simultaneous stashed blocks instead. No change will be made to the
+      transfer list with this flag.
+
+    Return:
+      A tuple of (tgt blocks converted to new, max stashed blocks)
+    """
     logger.info("Revising stash size...")
     stash_map = {}
 
@@ -719,16 +746,19 @@
       for stash_raw_id, _ in xf.use_stash:
         stash_map[stash_raw_id] += (xf,)
 
-    # Compute the maximum blocks available for stash based on /cache size and
-    # the threshold.
-    cache_size = common.OPTIONS.cache_size
-    stash_threshold = common.OPTIONS.stash_threshold
-    max_allowed = cache_size * stash_threshold / self.tgt.blocksize
+    max_allowed_blocks = None
+    if not ignore_stash_limit:
+      # Compute the maximum blocks available for stash based on /cache size and
+      # the threshold.
+      cache_size = common.OPTIONS.cache_size
+      stash_threshold = common.OPTIONS.stash_threshold
+      max_allowed_blocks = cache_size * stash_threshold / self.tgt.blocksize
 
     # See the comments for 'stashes' in WriteTransfers().
     stashes = {}
     stashed_blocks = 0
     new_blocks = 0
+    max_stashed_blocks = 0
 
     # Now go through all the commands. Compute the required stash size on the
     # fly. If a command requires excess stash than available, it deletes the
@@ -745,7 +775,7 @@
         if sh not in stashes:
           stashed_blocks_after += sr.size()
 
-        if stashed_blocks_after > max_allowed:
+        if max_allowed_blocks and stashed_blocks_after > max_allowed_blocks:
           # We cannot stash this one for a later command. Find out the command
           # that will use this stash and replace the command with "new".
           use_cmd = stash_map[stash_raw_id][2]
@@ -758,15 +788,21 @@
           else:
             stashes[sh] = 1
           stashed_blocks = stashed_blocks_after
+          max_stashed_blocks = max(max_stashed_blocks, stashed_blocks)
 
       # "move" and "diff" may introduce implicit stashes in BBOTA v3. Prior to
       # ComputePatches(), they both have the style of "diff".
       if xf.style == "diff":
         assert xf.tgt_ranges and xf.src_ranges
         if xf.src_ranges.overlaps(xf.tgt_ranges):
-          if stashed_blocks + xf.src_ranges.size() > max_allowed:
+          if (max_allowed_blocks and
+              stashed_blocks + xf.src_ranges.size() > max_allowed_blocks):
             replaced_cmds.append(xf)
             logger.info("%10d  %9s  %s", xf.src_ranges.size(), "implicit", xf)
+          else:
+            # The whole source ranges will be stashed for implicit stashes.
+            max_stashed_blocks = max(max_stashed_blocks,
+                                     stashed_blocks + xf.src_ranges.size())
 
       # Replace the commands in replaced_cmds with "new"s.
       for cmd in replaced_cmds:
@@ -795,7 +831,7 @@
     logger.info(
         "  Total %d blocks (%d bytes) are packed as new blocks due to "
         "insufficient cache size.", new_blocks, num_of_bytes)
-    return new_blocks
+    return new_blocks, max_stashed_blocks
 
   def ComputePatches(self, prefix):
     logger.info("Reticulating splines...")
@@ -829,7 +865,7 @@
             # These are identical; we don't need to generate a patch,
             # just issue copy commands on the device.
             xf.style = "move"
-            xf.patch = None
+            xf.patch_info = None
             tgt_size = xf.tgt_ranges.size() * self.tgt.blocksize
             if xf.src_ranges != xf.tgt_ranges:
               logger.info(
@@ -839,11 +875,10 @@
                       xf.tgt_name + " (from " + xf.src_name + ")"),
                   str(xf.tgt_ranges), str(xf.src_ranges))
           else:
-            if xf.patch:
-              # We have already generated the patch with imgdiff, while
-              # splitting large APKs (i.e. in FindTransfers()).
-              assert not self.disable_imgdiff
-              imgdiff = True
+            if xf.patch_info:
+              # We have already generated the patch (e.g. during split of large
+              # APKs or reduction of stash size)
+              imgdiff = xf.patch_info.imgdiff
             else:
               imgdiff = self.CanUseImgdiff(
                   xf.tgt_name, xf.tgt_ranges, xf.src_ranges)
@@ -854,85 +889,16 @@
         else:
           assert False, "unknown style " + xf.style
 
-    if diff_queue:
-      if self.threads > 1:
-        logger.info("Computing patches (using %d threads)...", self.threads)
-      else:
-        logger.info("Computing patches...")
-
-      diff_total = len(diff_queue)
-      patches = [None] * diff_total
-      error_messages = []
-
-      # Using multiprocessing doesn't give additional benefits, due to the
-      # pattern of the code. The diffing work is done by subprocess.call, which
-      # already runs in a separate process (not affected much by the GIL -
-      # Global Interpreter Lock). Using multiprocess also requires either a)
-      # writing the diff input files in the main process before forking, or b)
-      # reopening the image file (SparseImage) in the worker processes. Doing
-      # neither of them further improves the performance.
-      lock = threading.Lock()
-      def diff_worker():
-        while True:
-          with lock:
-            if not diff_queue:
-              return
-            xf_index, imgdiff, patch_index = diff_queue.pop()
-            xf = self.transfers[xf_index]
-
-          patch = xf.patch
-          if not patch:
-            src_ranges = xf.src_ranges
-            tgt_ranges = xf.tgt_ranges
-
-            src_file = common.MakeTempFile(prefix="src-")
-            with open(src_file, "wb") as fd:
-              self.src.WriteRangeDataToFd(src_ranges, fd)
-
-            tgt_file = common.MakeTempFile(prefix="tgt-")
-            with open(tgt_file, "wb") as fd:
-              self.tgt.WriteRangeDataToFd(tgt_ranges, fd)
-
-            message = []
-            try:
-              patch = compute_patch(src_file, tgt_file, imgdiff)
-            except ValueError as e:
-              message.append(
-                  "Failed to generate %s for %s: tgt=%s, src=%s:\n%s" % (
-                      "imgdiff" if imgdiff else "bsdiff",
-                      xf.tgt_name if xf.tgt_name == xf.src_name else
-                      xf.tgt_name + " (from " + xf.src_name + ")",
-                      xf.tgt_ranges, xf.src_ranges, e.message))
-            if message:
-              with lock:
-                error_messages.extend(message)
-
-          with lock:
-            patches[patch_index] = (xf_index, patch)
-
-      threads = [threading.Thread(target=diff_worker)
-                 for _ in range(self.threads)]
-      for th in threads:
-        th.start()
-      while threads:
-        threads.pop().join()
-
-      if error_messages:
-        logger.error('ERROR:')
-        logger.error('\n'.join(error_messages))
-        logger.error('\n\n\n')
-        sys.exit(1)
-    else:
-      patches = []
+    patches = self.ComputePatchesForInputList(diff_queue, False)
 
     offset = 0
     with open(prefix + ".patch.dat", "wb") as patch_fd:
-      for index, patch in patches:
+      for index, patch_info, _ in patches:
         xf = self.transfers[index]
-        xf.patch_len = len(patch)
+        xf.patch_len = len(patch_info.content)
         xf.patch_start = offset
         offset += xf.patch_len
-        patch_fd.write(patch)
+        patch_fd.write(patch_info.content)
 
         tgt_size = xf.tgt_ranges.size() * self.tgt.blocksize
         logger.info(
@@ -999,6 +965,32 @@
       for i in range(s, e):
         assert touched[i] == 1
 
+  def FindSequenceForTransfers(self):
+    """Finds a sequence for the given transfers.
+
+     The goal is to minimize the violation of order dependencies between these
+     transfers, so that fewer blocks are stashed when applying the update.
+    """
+
+    # Clear the existing dependency between transfers
+    for xf in self.transfers:
+      xf.goes_before = OrderedDict()
+      xf.goes_after = OrderedDict()
+
+      xf.stash_before = []
+      xf.use_stash = []
+
+    # Find the ordering dependencies among transfers (this is O(n^2)
+    # in the number of transfers).
+    self.GenerateDigraph()
+    # Find a sequence of transfers that satisfies as many ordering
+    # dependencies as possible (heuristically).
+    self.FindVertexSequence()
+    # Fix up the ordering dependencies that the sequence didn't
+    # satisfy.
+    self.ReverseBackwardEdges()
+    self.ImproveVertexSequence()
+
   def ImproveVertexSequence(self):
     logger.info("Improving vertex order...")
 
@@ -1248,6 +1240,152 @@
           b.goes_before[a] = size
           a.goes_after[b] = size
 
+  def ComputePatchesForInputList(self, diff_queue, compress_target):
+    """Returns a list of patch information for the input list of transfers.
+
+      Args:
+        diff_queue: a list of transfers with style 'diff'
+        compress_target: If True, compresses the target ranges of each
+            transfers; and save the size.
+
+      Returns:
+        A list of (transfer order, patch_info, compressed_size) tuples.
+    """
+
+    if not diff_queue:
+      return []
+
+    if self.threads > 1:
+      logger.info("Computing patches (using %d threads)...", self.threads)
+    else:
+      logger.info("Computing patches...")
+
+    diff_total = len(diff_queue)
+    patches = [None] * diff_total
+    error_messages = []
+
+    # Using multiprocessing doesn't give additional benefits, due to the
+    # pattern of the code. The diffing work is done by subprocess.call, which
+    # already runs in a separate process (not affected much by the GIL -
+    # Global Interpreter Lock). Using multiprocess also requires either a)
+    # writing the diff input files in the main process before forking, or b)
+    # reopening the image file (SparseImage) in the worker processes. Doing
+    # neither of them further improves the performance.
+    lock = threading.Lock()
+
+    def diff_worker():
+      while True:
+        with lock:
+          if not diff_queue:
+            return
+          xf_index, imgdiff, patch_index = diff_queue.pop()
+          xf = self.transfers[xf_index]
+
+        message = []
+        compressed_size = None
+
+        patch_info = xf.patch_info
+        if not patch_info:
+          src_file = common.MakeTempFile(prefix="src-")
+          with open(src_file, "wb") as fd:
+            self.src.WriteRangeDataToFd(xf.src_ranges, fd)
+
+          tgt_file = common.MakeTempFile(prefix="tgt-")
+          with open(tgt_file, "wb") as fd:
+            self.tgt.WriteRangeDataToFd(xf.tgt_ranges, fd)
+
+          try:
+            patch_info = compute_patch(src_file, tgt_file, imgdiff)
+          except ValueError as e:
+            message.append(
+                "Failed to generate %s for %s: tgt=%s, src=%s:\n%s" % (
+                    "imgdiff" if imgdiff else "bsdiff",
+                    xf.tgt_name if xf.tgt_name == xf.src_name else
+                    xf.tgt_name + " (from " + xf.src_name + ")",
+                    xf.tgt_ranges, xf.src_ranges, e.message))
+
+        if compress_target:
+          tgt_data = self.tgt.ReadRangeSet(xf.tgt_ranges)
+          try:
+            # Compresses with the default level
+            compress_obj = zlib.compressobj(6, zlib.DEFLATED, -zlib.MAX_WBITS)
+            compressed_data = (compress_obj.compress("".join(tgt_data))
+                               + compress_obj.flush())
+            compressed_size = len(compressed_data)
+          except zlib.error as e:
+            message.append(
+                "Failed to compress the data in target range {} for {}:\n"
+                "{}".format(xf.tgt_ranges, xf.tgt_name, e.message))
+
+        if message:
+          with lock:
+            error_messages.extend(message)
+
+        with lock:
+          patches[patch_index] = (xf_index, patch_info, compressed_size)
+
+    threads = [threading.Thread(target=diff_worker)
+               for _ in range(self.threads)]
+    for th in threads:
+      th.start()
+    while threads:
+      threads.pop().join()
+
+    if error_messages:
+      logger.error('ERROR:')
+      logger.error('\n'.join(error_messages))
+      logger.error('\n\n\n')
+      sys.exit(1)
+
+    return patches
+
+  def SelectAndConvertDiffTransfersToNew(self):
+    """Converts the diff transfers to reduce the max simultaneous stash.
+
+    Since the 'new' data is compressed with deflate, we can select the 'diff'
+    transfers for conversion by comparing its patch size with the size of the
+    compressed data. Ideally, we want to convert the transfers with a small
+    size increase, but using a large number of stashed blocks.
+    """
+
+    logger.info("Selecting diff commands to convert to new.")
+    diff_queue = []
+    for xf in self.transfers:
+      if xf.style == "diff" and xf.src_sha1 != xf.tgt_sha1:
+        use_imgdiff = self.CanUseImgdiff(xf.tgt_name, xf.tgt_ranges,
+                                         xf.src_ranges)
+        diff_queue.append((xf.order, use_imgdiff, len(diff_queue)))
+
+    # Remove the 'move' transfers, and compute the patch & compressed size
+    # for the remaining.
+    result = self.ComputePatchesForInputList(diff_queue, True)
+
+    removed_stashed_blocks = 0
+    for xf_index, patch_info, compressed_size in result:
+      xf = self.transfers[xf_index]
+      if not xf.patch_info:
+        xf.patch_info = patch_info
+
+      size_ratio = len(xf.patch_info.content) * 100.0 / compressed_size
+      diff_style = "imgdiff" if xf.patch_info.imgdiff else "bsdiff"
+      logger.info("%s, target size: %d, style: %s, patch size: %d,"
+                  " compression_size: %d, ratio %.2f%%", xf.tgt_name,
+                  xf.tgt_ranges.size(), diff_style,
+                  len(xf.patch_info.content), compressed_size, size_ratio)
+
+      # Convert the transfer to new if the compressed size is smaller or equal.
+      # We don't need to maintain the stash_before lists here because the
+      # graph will be regenerated later.
+      if len(xf.patch_info.content) >= compressed_size:
+        removed_stashed_blocks += sum(sr.size() for _, sr in xf.use_stash)
+        logger.info("Converting %s to new", xf.tgt_name)
+        xf.ConvertToNew()
+
+    # TODO(xunchang) convert more transfers by sorting:
+    # (compressed size - patch_size) / used_stashed_blocks
+
+    logger.info("Removed %d stashed blocks", removed_stashed_blocks)
+
   def FindTransfers(self):
     """Parse the file_map to generate all the transfers."""
 
@@ -1585,7 +1723,7 @@
                                 self.tgt.RangeSha1(tgt_ranges),
                                 self.src.RangeSha1(src_ranges),
                                 "diff", self.transfers)
-      transfer_split.patch = patch
+      transfer_split.patch_info = PatchInfo(True, patch)
 
   def AbbreviateSourceNames(self):
     for k in self.src.file_map.keys():
diff --git a/tools/releasetools/build_image.py b/tools/releasetools/build_image.py
index 9612499..521b319 100755
--- a/tools/releasetools/build_image.py
+++ b/tools/releasetools/build_image.py
@@ -75,26 +75,30 @@
   """
   cmd = ["find", path, "-print"]
   output = common.RunAndCheckOutput(cmd, verbose=False)
-  # increase by > 4% as number of files and directories is not whole picture.
-  return output.count('\n') * 25 // 24
+  # TODO(b/122328872) Fix estimation algorithm to not need the multiplier.
+  return output.count('\n') * 2
 
 
-def GetFilesystemCharacteristics(sparse_image_path):
-  """Returns various filesystem characteristics of "sparse_image_path".
+def GetFilesystemCharacteristics(image_path, sparse_image=True):
+  """Returns various filesystem characteristics of "image_path".
 
   Args:
-    sparse_image_path: The file to analyze.
+    image_path: The file to analyze.
+    sparse_image: Image is sparse
 
   Returns:
     The characteristics dictionary.
   """
-  unsparse_image_path = UnsparseImage(sparse_image_path, replace=False)
+  unsparse_image_path = image_path
+  if sparse_image:
+    unsparse_image_path = UnsparseImage(image_path, replace=False)
 
   cmd = ["tune2fs", "-l", unsparse_image_path]
   try:
     output = common.RunAndCheckOutput(cmd, verbose=False)
   finally:
-    os.remove(unsparse_image_path)
+    if sparse_image:
+      os.remove(unsparse_image_path)
   fs_dict = {}
   for line in output.splitlines():
     fields = line.split(":")
@@ -280,6 +284,7 @@
         build_command.extend(["-S", prop_dict["hash_seed"]])
     if "ext4_share_dup_blocks" in prop_dict:
       build_command.append("-c")
+    build_command.extend(["--inode_size", "256"])
     if "selinux_fc" in prop_dict:
       build_command.append(prop_dict["selinux_fc"])
   elif fs_type.startswith("squash"):
@@ -413,7 +418,10 @@
           "First Pass based on estimates of %d MB and %s inodes.",
           size // BYTES_IN_MB, prop_dict["extfs_inode_count"])
       BuildImageMkfs(in_dir, prop_dict, out_file, target_out, fs_config)
-      fs_dict = GetFilesystemCharacteristics(out_file)
+      sparse_image = False
+      if "extfs_sparse_flag" in prop_dict:
+        sparse_image = True
+      fs_dict = GetFilesystemCharacteristics(out_file, sparse_image)
       os.remove(out_file)
       block_size = int(fs_dict.get("Block size", "4096"))
       free_size = int(fs_dict.get("Free blocks", "0")) * block_size
@@ -427,16 +435,21 @@
       else:
         size -= free_size
         size += reserved_size
+        if reserved_size == 0:
+          # add .2% margin
+          size = size * 1002 // 1000
+        # Use a minimum size, otherwise we will fail to calculate an AVB footer
+        # or fail to construct an ext4 image.
+        size = max(size, 256 * 1024)
         if block_size <= 4096:
           size = common.RoundUpTo4K(size)
         else:
           size = ((size + block_size - 1) // block_size) * block_size
-        # Use a minimum size, otherwise we will fail to calculate an AVB footer
-        # or fail to construct an ext4 image.
-        size = max(size, 256 * 1024)
       extfs_inode_count = prop_dict["extfs_inode_count"]
       inodes = int(fs_dict.get("Inode count", extfs_inode_count))
       inodes -= int(fs_dict.get("Free inodes", "0"))
+      # add .2% margin
+      inodes = inodes * 1002 // 1000
       prop_dict["extfs_inode_count"] = str(inodes)
       prop_dict["partition_size"] = str(size)
       logger.info(
diff --git a/tools/releasetools/build_super_image.py b/tools/releasetools/build_super_image.py
index e8730ae..bb0e641 100755
--- a/tools/releasetools/build_super_image.py
+++ b/tools/releasetools/build_super_image.py
@@ -67,6 +67,17 @@
     return os.path.getsize(img)
 
 
+def GetArgumentsForImage(partition, group, image=None):
+  image_size = GetPartitionSizeFromImage(image) if image else 0
+
+  cmd = ["--partition",
+         "{}:readonly:{}:{}".format(partition, image_size, group)]
+  if image:
+    cmd += ["--image", "{}={}".format(partition, image)]
+
+  return cmd
+
+
 def BuildSuperImageFromDict(info_dict, output):
 
   cmd = [info_dict["lpmake"],
@@ -105,26 +116,25 @@
 
     for partition in partition_list:
       image = info_dict.get("{}_image".format(partition))
-      image_size = 0
       if image:
-        image_size = GetPartitionSizeFromImage(image)
         has_image = True
-      if append_suffix:
-        cmd += ["--partition",
-                "{}_a:readonly:{}:{}_a".format(partition, image_size, group),
-                "--partition",
-                "{}_b:readonly:0:{}_b".format(partition, group)]
-        if image:
-          # For A/B devices, super partition always contains sub-partitions in
-          # the _a slot, because this image should only be used for
-          # bootstrapping / initializing the device. When flashing the image,
-          # bootloader fastboot should always mark _a slot as bootable.
-          cmd += ["--image", "{}_a={}".format(partition, image)]
-      else:
-        cmd += ["--partition",
-                "{}:readonly:{}:{}".format(partition, image_size, group)]
-        if image:
-          cmd += ["--image", "{}={}".format(partition, image)]
+
+      if not append_suffix:
+        cmd += GetArgumentsForImage(partition, group, image)
+        continue
+
+      # For A/B devices, super partition always contains sub-partitions in
+      # the _a slot, because this image should only be used for
+      # bootstrapping / initializing the device. When flashing the image,
+      # bootloader fastboot should always mark _a slot as bootable.
+      cmd += GetArgumentsForImage(partition + "_a", group + "_a", image)
+
+      other_image = None
+      if partition == "system" and "system_other_image" in info_dict:
+        other_image = info_dict["system_other_image"]
+        has_image = True
+
+      cmd += GetArgumentsForImage(partition + "_b", group + "_b", other_image)
 
   if has_image:
     cmd.append("--sparse")
@@ -145,6 +155,12 @@
   info_dict = common.LoadInfoDict(inp)
   partition_list = shlex.split(
       info_dict.get("dynamic_partition_list", "").strip())
+
+  if "system" in partition_list:
+    image_path = os.path.join(inp, "IMAGES", "system_other.img")
+    if os.path.isfile(image_path):
+      info_dict["system_other_image"] = image_path
+
   missing_images = []
   for partition in partition_list:
     image_path = os.path.join(inp, "IMAGES", "{}.img".format(partition))
diff --git a/tools/releasetools/common.py b/tools/releasetools/common.py
index 4c452ad..dcc083c 100644
--- a/tools/releasetools/common.py
+++ b/tools/releasetools/common.py
@@ -623,10 +623,13 @@
   # "boot" or "recovery", without extension.
   partition_name = os.path.basename(sourcedir).lower()
 
-  if (partition_name == "recovery" and
-      info_dict.get("include_recovery_dtbo") == "true"):
-    fn = os.path.join(sourcedir, "recovery_dtbo")
-    cmd.extend(["--recovery_dtbo", fn])
+  if partition_name == "recovery":
+    if info_dict.get("include_recovery_dtbo") == "true":
+      fn = os.path.join(sourcedir, "recovery_dtbo")
+      cmd.extend(["--recovery_dtbo", fn])
+    if info_dict.get("include_recovery_acpio") == "true":
+      fn = os.path.join(sourcedir, "recovery_acpio")
+      cmd.extend(["--recovery_acpio", fn])
 
   RunAndCheckOutput(cmd)
 
diff --git a/tools/releasetools/test_blockimgdiff.py b/tools/releasetools/test_blockimgdiff.py
index 857026e..806ff4b 100644
--- a/tools/releasetools/test_blockimgdiff.py
+++ b/tools/releasetools/test_blockimgdiff.py
@@ -127,11 +127,11 @@
 
     # Sufficient cache to stash 5 blocks (size * 0.8 >= 5).
     common.OPTIONS.cache_size = 7 * 4096
-    self.assertEqual(0, block_image_diff.ReviseStashSize())
+    self.assertEqual((0, 5), block_image_diff.ReviseStashSize())
 
     # Insufficient cache to stash 5 blocks (size * 0.8 < 5).
     common.OPTIONS.cache_size = 6 * 4096
-    self.assertEqual(10, block_image_diff.ReviseStashSize())
+    self.assertEqual((10, 0), block_image_diff.ReviseStashSize())
 
   def test_ReviseStashSize_bug_33687949(self):
     """ReviseStashSize() should "free" the used stash _after_ the command.
@@ -169,7 +169,7 @@
 
     # Insufficient cache to stash 15 blocks (size * 0.8 < 15).
     common.OPTIONS.cache_size = 15 * 4096
-    self.assertEqual(15, block_image_diff.ReviseStashSize())
+    self.assertEqual((15, 5), block_image_diff.ReviseStashSize())
 
   def test_FileTypeSupportedByImgdiff(self):
     self.assertTrue(
diff --git a/tools/signapk/Android.bp b/tools/signapk/Android.bp
index e95205d..ad9d957 100644
--- a/tools/signapk/Android.bp
+++ b/tools/signapk/Android.bp
@@ -28,4 +28,10 @@
     ],
 
     required: ["libconscrypt_openjdk_jni"],
+
+    // The post-build signing tools need signapk.jar (and its shared libraries,
+    // handled in their own Android.bp files)
+    dist: {
+        targets: ["droidcore"],
+    },
 }
diff --git a/tools/signapk/Android.mk b/tools/signapk/Android.mk
deleted file mode 100644
index ff54d6d..0000000
--- a/tools/signapk/Android.mk
+++ /dev/null
@@ -1,26 +0,0 @@
-#
-# 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.
-#
-LOCAL_PATH := $(call my-dir)
-
-ifeq ($(TARGET_BUILD_APPS),)
-# The post-build signing tools need signapk.jar and its shared libraries,
-# but we don't need this if we're just doing unbundled apps.
-my_dist_files := $(HOST_OUT_JAVA_LIBRARIES)/signapk.jar \
-    $(HOST_OUT_SHARED_LIBRARIES)/libconscrypt_openjdk_jni$(HOST_SHLIB_SUFFIX)
-
-$(call dist-for-goals,droidcore,$(my_dist_files))
-my_dist_files :=
-endif