Merge "Use libucrt instead of libmsvcr110"
diff --git a/CleanSpec.mk b/CleanSpec.mk
index 7d42fc9..a4b7c26 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -517,6 +517,8 @@
 
 $(call add-clean-step, rm -f $(HOST_OUT)/*ts/host-libprotobuf-java-*.jar)
 
+$(call add-clean-step, find $(OUT_DIR)/target/product/mainline_arm64/system -type f -name "*.*dex" -print0 | xargs -0 rm -f)
+
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
 # ************************************************
diff --git a/core/Makefile b/core/Makefile
index 2b602b8..6ba2be9 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -148,6 +148,11 @@
 FINAL_VENDOR_DEFAULT_PROPERTIES += \
     $(call collapse-pairs, $(PRODUCT_DEFAULT_PROPERTY_OVERRIDES))
 
+FINAL_VENDOR_DEFAULT_PROPERTIES += ro.bionic.arch=$(TARGET_ARCH)
+FINAL_VENDOR_DEFAULT_PROPERTIES += ro.bionic.cpu_variant=$(TARGET_CPU_VARIANT)
+FINAL_VENDOR_DEFAULT_PROPERTIES += ro.bionic.2nd_arch=$(TARGET_2ND_ARCH)
+FINAL_VENDOR_DEFAULT_PROPERTIES += ro.bionic.2nd_cpu_variant=$(TARGET_2ND_CPU_VARIANT)
+
 # Although these variables are prefixed with TARGET_RECOVERY_, they are also needed under charger
 # mode (via libminui).
 ifdef TARGET_RECOVERY_DEFAULT_ROTATION
@@ -220,7 +225,7 @@
 	        echo "# ADDITIONAL_DEFAULT_PROPERTIES" >> $@; \
 	        echo "#" >> $@;
 	$(hide) $(foreach line,$(FINAL_DEFAULT_PROPERTIES), \
-		echo "$(line)" >> $@;)
+	    echo "$(line)" >> $@;)
 	$(hide) echo "#" >> $@; \
 	        echo "# BOOTIMAGE_BUILD_PROPERTIES" >> $@; \
 	        echo "#" >> $@;
@@ -245,7 +250,7 @@
 	        echo "# ADDITIONAL VENDOR DEFAULT PROPERTIES" >> $@; \
 	        echo "#" >> $@;
 	$(hide) $(foreach line,$(FINAL_VENDOR_DEFAULT_PROPERTIES), \
-		echo "$(line)" >> $@;)
+	    echo "$(line)" >> $@;)
 	$(hide) build/make/tools/post_process_props.py $@
 
 endif  # property_overrides_split_enabled
@@ -372,57 +377,59 @@
 	        echo "# PRODUCT_OEM_PROPERTIES" >> $@; \
 	        echo "#" >> $@;
 	$(hide) $(foreach prop,$(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_OEM_PROPERTIES), \
-		echo "import /oem/oem.prop $(prop)" >> $@;)
+	    echo "import /oem/oem.prop $(prop)" >> $@;)
 endif
 	$(hide) $(call generate-common-build-props,system,$@)
 	$(hide) TARGET_BUILD_TYPE="$(TARGET_BUILD_VARIANT)" \
-			TARGET_BUILD_FLAVOR="$(TARGET_BUILD_FLAVOR)" \
-			TARGET_DEVICE="$(TARGET_DEVICE)" \
-			PRODUCT_NAME="$(TARGET_PRODUCT)" \
-			PRODUCT_BRAND="$(PRODUCT_BRAND)" \
-			PRODUCT_DEFAULT_LOCALE="$(call get-default-product-locale,$(PRODUCT_LOCALES))" \
-			PRODUCT_DEFAULT_WIFI_CHANNELS="$(PRODUCT_DEFAULT_WIFI_CHANNELS)" \
-			PRODUCT_MODEL="$(PRODUCT_MODEL)" \
-			PRODUCT_MANUFACTURER="$(PRODUCT_MANUFACTURER)" \
-			PRIVATE_BUILD_DESC="$(PRIVATE_BUILD_DESC)" \
-			BUILD_ID="$(BUILD_ID)" \
-			BUILD_DISPLAY_ID="$(BUILD_DISPLAY_ID)" \
-			DATE="$(DATE_FROM_FILE)" \
-			BUILD_NUMBER="$(BUILD_NUMBER_FROM_FILE)" \
-			BOARD_BUILD_SYSTEM_ROOT_IMAGE="$(BOARD_BUILD_SYSTEM_ROOT_IMAGE)" \
-			AB_OTA_UPDATER="$(AB_OTA_UPDATER)" \
-			PLATFORM_VERSION="$(PLATFORM_VERSION)" \
-			PLATFORM_SECURITY_PATCH="$(PLATFORM_SECURITY_PATCH)" \
-			PLATFORM_BASE_OS="$(PLATFORM_BASE_OS)" \
-			PLATFORM_SDK_VERSION="$(PLATFORM_SDK_VERSION)" \
-			PLATFORM_PREVIEW_SDK_VERSION="$(PLATFORM_PREVIEW_SDK_VERSION)" \
-			PLATFORM_VERSION_CODENAME="$(PLATFORM_VERSION_CODENAME)" \
-			PLATFORM_VERSION_ALL_CODENAMES="$(PLATFORM_VERSION_ALL_CODENAMES)" \
-			PLATFORM_MIN_SUPPORTED_TARGET_SDK_VERSION="$(PLATFORM_MIN_SUPPORTED_TARGET_SDK_VERSION)" \
-			BUILD_VERSION_TAGS="$(BUILD_VERSION_TAGS)" \
-			BUILD_FINGERPRINT="$(BUILD_FINGERPRINT_FROM_FILE)" \
-			$(if $(OEM_THUMBPRINT_PROPERTIES),BUILD_THUMBPRINT="$(BUILD_THUMBPRINT_FROM_FILE)") \
-			TARGET_CPU_ABI_LIST="$(TARGET_CPU_ABI_LIST)" \
-			TARGET_CPU_ABI_LIST_32_BIT="$(TARGET_CPU_ABI_LIST_32_BIT)" \
-			TARGET_CPU_ABI_LIST_64_BIT="$(TARGET_CPU_ABI_LIST_64_BIT)" \
-			TARGET_CPU_ABI="$(TARGET_CPU_ABI)" \
-			TARGET_CPU_ABI2="$(TARGET_CPU_ABI2)" \
+	        TARGET_BUILD_FLAVOR="$(TARGET_BUILD_FLAVOR)" \
+	        TARGET_DEVICE="$(TARGET_DEVICE)" \
+	        PRODUCT_NAME="$(TARGET_PRODUCT)" \
+	        PRODUCT_BRAND="$(PRODUCT_BRAND)" \
+	        PRODUCT_DEFAULT_LOCALE="$(call get-default-product-locale,$(PRODUCT_LOCALES))" \
+	        PRODUCT_DEFAULT_WIFI_CHANNELS="$(PRODUCT_DEFAULT_WIFI_CHANNELS)" \
+	        PRODUCT_MODEL="$(PRODUCT_MODEL)" \
+	        PRODUCT_MANUFACTURER="$(PRODUCT_MANUFACTURER)" \
+	        PRIVATE_BUILD_DESC="$(PRIVATE_BUILD_DESC)" \
+	        BUILD_ID="$(BUILD_ID)" \
+	        BUILD_DISPLAY_ID="$(BUILD_DISPLAY_ID)" \
+	        DATE="$(DATE_FROM_FILE)" \
+	        BUILD_NUMBER="$(BUILD_NUMBER_FROM_FILE)" \
+	        BOARD_BUILD_SYSTEM_ROOT_IMAGE="$(BOARD_BUILD_SYSTEM_ROOT_IMAGE)" \
+	        AB_OTA_UPDATER="$(AB_OTA_UPDATER)" \
+	        PLATFORM_VERSION="$(PLATFORM_VERSION)" \
+	        PLATFORM_SECURITY_PATCH="$(PLATFORM_SECURITY_PATCH)" \
+	        PLATFORM_BASE_OS="$(PLATFORM_BASE_OS)" \
+	        PLATFORM_SDK_VERSION="$(PLATFORM_SDK_VERSION)" \
+	        PLATFORM_PREVIEW_SDK_VERSION="$(PLATFORM_PREVIEW_SDK_VERSION)" \
+	        PLATFORM_VERSION_CODENAME="$(PLATFORM_VERSION_CODENAME)" \
+	        PLATFORM_VERSION_ALL_CODENAMES="$(PLATFORM_VERSION_ALL_CODENAMES)" \
+	        PLATFORM_MIN_SUPPORTED_TARGET_SDK_VERSION="$(PLATFORM_MIN_SUPPORTED_TARGET_SDK_VERSION)" \
+	        BUILD_VERSION_TAGS="$(BUILD_VERSION_TAGS)" \
+	        BUILD_FINGERPRINT="$(BUILD_FINGERPRINT_FROM_FILE)" \
+	        $(if $(OEM_THUMBPRINT_PROPERTIES),BUILD_THUMBPRINT="$(BUILD_THUMBPRINT_FROM_FILE)") \
+	        TARGET_CPU_ABI_LIST="$(TARGET_CPU_ABI_LIST)" \
+	        TARGET_CPU_ABI_LIST_32_BIT="$(TARGET_CPU_ABI_LIST_32_BIT)" \
+	        TARGET_CPU_ABI_LIST_64_BIT="$(TARGET_CPU_ABI_LIST_64_BIT)" \
+	        TARGET_CPU_ABI="$(TARGET_CPU_ABI)" \
+	        TARGET_CPU_ABI2="$(TARGET_CPU_ABI2)" \
 	        bash $(BUILDINFO_SH) >> $@
 	$(hide) $(foreach file,$(system_prop_file), \
-		if [ -f "$(file)" ]; then \
-			echo "#" >> $@; \
-			echo Target buildinfo from: "$(file)"; \
-			echo "# from $(file)" >> $@; \
-			echo "#" >> $@; \
-			cat $(file) >> $@; \
-		fi;)
+	    if [ -f "$(file)" ]; then \
+	        echo Target buildinfo from: "$(file)"; \
+	        echo "" >> $@; \
+	        echo "#" >> $@; \
+	        echo "# from $(file)" >> $@; \
+	        echo "#" >> $@; \
+	        cat $(file) >> $@; \
+	        echo "# end of $(file)" >> $@; \
+	    fi;)
 	$(if $(FINAL_BUILD_PROPERTIES), \
-		$(hide) echo >> $@; \
-		        echo "#" >> $@; \
-		        echo "# ADDITIONAL_BUILD_PROPERTIES" >> $@; \
-		        echo "#" >> $@; )
+	    $(hide) echo >> $@; \
+	            echo "#" >> $@; \
+	            echo "# ADDITIONAL_BUILD_PROPERTIES" >> $@; \
+	            echo "#" >> $@; )
 	$(hide) $(foreach line,$(FINAL_BUILD_PROPERTIES), \
-		echo "$(line)" >> $@;)
+	    echo "$(line)" >> $@;)
 	$(hide) cat $(INSTALLED_ANDROID_INFO_TXT_TARGET) | grep 'require version-' | sed -e 's/require version-/ro.build.expect./g' >> $@
 	$(hide) build/make/tools/post_process_props.py $@ $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_SYSTEM_PROPERTY_BLACKLIST)
 
@@ -472,7 +479,7 @@
 	        echo "# ADDITIONAL VENDOR BUILD PROPERTIES" >> $@; \
 	        echo "#" >> $@;
 	$(hide) $(foreach line,$(FINAL_VENDOR_BUILD_PROPERTIES), \
-		echo "$(line)" >> $@;)
+	    echo "$(line)" >> $@;)
 endif  # property_overrides_split_enabled
 	$(hide) build/make/tools/post_process_props.py $@ $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_VENDOR_PROPERTY_BLACKLIST)
 
@@ -481,24 +488,40 @@
 INSTALLED_PRODUCT_BUILD_PROP_TARGET := $(TARGET_OUT_PRODUCT)/build.prop
 ALL_DEFAULT_INSTALLED_MODULES += $(INSTALLED_PRODUCT_BUILD_PROP_TARGET)
 
+ifdef TARGET_PRODUCT_PROP
+product_prop_files := $(TARGET_PRODUCT_PROP)
+else
+product_prop_files := $(wildcard $(TARGET_DEVICE_DIR)/product.prop)
+endif
+
 FINAL_PRODUCT_PROPERTIES += \
     $(call collapse-pairs, $(PRODUCT_PRODUCT_PROPERTIES) $(ADDITIONAL_PRODUCT_PROPERTIES))
 FINAL_PRODUCT_PROPERTIES := $(call uniq-pairs-by-first-component, \
     $(FINAL_PRODUCT_PROPERTIES),=)
 
-$(INSTALLED_PRODUCT_BUILD_PROP_TARGET): $(BUILDINFO_COMMON_SH)
+$(INSTALLED_PRODUCT_BUILD_PROP_TARGET): $(BUILDINFO_COMMON_SH) $(product_prop_files)
 	@echo Target product buildinfo: $@
 	@mkdir -p $(dir $@)
 	$(hide) echo > $@
 ifdef BOARD_USES_PRODUCTIMAGE
 	$(hide) $(call generate-common-build-props,product,$@)
 endif  # BOARD_USES_PRODUCTIMAGE
+	$(hide) $(foreach file,$(product_prop_files), \
+	    if [ -f "$(file)" ]; then \
+	        echo Target product properties from: "$(file)"; \
+	        echo "" >> $@; \
+	        echo "#" >> $@; \
+	        echo "# from $(file)" >> $@; \
+	        echo "#" >> $@; \
+	        cat $(file) >> $@; \
+	        echo "# end of $(file)" >> $@; \
+	    fi;)
 	$(hide) echo "#" >> $@; \
 	        echo "# ADDITIONAL PRODUCT PROPERTIES" >> $@; \
 	        echo "#" >> $@; \
-          echo "ro.build.characteristics=$(TARGET_AAPT_CHARACTERISTICS)" >> $@;
+	        echo "ro.build.characteristics=$(TARGET_AAPT_CHARACTERISTICS)" >> $@;
 	$(hide) $(foreach line,$(FINAL_PRODUCT_PROPERTIES), \
-		echo "$(line)" >> $@;)
+	    echo "$(line)" >> $@;)
 	$(hide) build/make/tools/post_process_props.py $@
 
 # ----------------------------------------------------------------
@@ -523,7 +546,7 @@
 	        echo "# ADDITIONAL ODM BUILD PROPERTIES" >> $@; \
 	        echo "#" >> $@;
 	$(hide) $(foreach line,$(FINAL_ODM_BUILD_PROPERTIES), \
-		echo "$(line)" >> $@;)
+	    echo "$(line)" >> $@;)
 	$(hide) build/make/tools/post_process_props.py $@
 
 # -----------------------------------------------------------------
@@ -547,7 +570,7 @@
 	        echo "# ADDITIONAL PRODUCT_SERVICES PROPERTIES" >> $@; \
 	        echo "#" >> $@;
 	$(hide) $(foreach line,$(FINAL_PRODUCT_SERVICES_PROPERTIES), \
-		echo "$(line)" >> $@;)
+	    echo "$(line)" >> $@;)
 	$(hide) build/make/tools/post_process_props.py $@
 
 # ----------------------------------------------------------------
@@ -573,9 +596,9 @@
 	@echo SDK buildinfo: $@
 	@mkdir -p $(dir $@)
 	$(hide) grep -v "$(subst $(space),\|,$(strip \
-				$(sdk_build_prop_remove)))" $< > $@.tmp
+	            $(sdk_build_prop_remove)))" $< > $@.tmp
 	$(hide) for x in $(sdk_build_prop_remove); do \
-				echo "$$x"generic >> $@.tmp; done
+	            echo "$$x"generic >> $@.tmp; done
 	$(hide) mv $@.tmp $@
 
 # -----------------------------------------------------------------
@@ -977,30 +1000,46 @@
 $(2) : $(3)
 $(3) : $(6) $(BUILD_SYSTEM)/Makefile build/make/tools/generate-notice-files.py
 	build/make/tools/generate-notice-files.py --text-output $(2) \
-		$(if $(filter $(1),xml_excluded_extra_partitions),-e vendor$(comma)product$(comma)product_services --xml-output, \
-		  $(if $(filter $(1),xml_vendor),-i vendor --xml-output, \
-		    $(if $(filter $(1),xml_product),-i product --xml-output, \
-		      $(if $(filter $(1),xml_product_services),-i product_services --xml-output, \
-		        --html-output)))) $(3) \
-		-t $$(PRIVATE_MESSAGE) -s $$(PRIVATE_DIR)/src
+	    $(if $(filter $(1),xml_excluded_extra_partitions),-e vendor -e product -e product_services --xml-output, \
+	      $(if $(filter $(1),xml_vendor),-i vendor --xml-output, \
+	        $(if $(filter $(1),xml_product),-i product --xml-output, \
+	          $(if $(filter $(1),xml_product_services),-i product_services --xml-output, \
+	            --html-output)))) $(3) \
+	    -t $$(PRIVATE_MESSAGE) -s $$(PRIVATE_DIR)/src
 notice_files: $(2) $(3)
 endef
 
+# Notice file logic isn't relevant for TARGET_BUILD_APPS
+ifndef TARGET_BUILD_APPS
+
 # TODO These intermediate NOTICE.txt/NOTICE.html files should go into
 # TARGET_OUT_NOTICE_FILES now that the notice files are gathered from
 # the src subdirectory.
-
 target_notice_file_txt := $(TARGET_OUT_INTERMEDIATES)/NOTICE.txt
-target_notice_file_html_or_xml := $(TARGET_OUT_INTERMEDIATES)/NOTICE.html
-target_notice_file_html_or_xml_gz := $(TARGET_OUT_INTERMEDIATES)/NOTICE.html.gz
-installed_notice_html_or_xml_gz := $(TARGET_OUT)/etc/NOTICE.html.gz
 tools_notice_file_txt := $(HOST_OUT_INTERMEDIATES)/NOTICE.txt
 tools_notice_file_html := $(HOST_OUT_INTERMEDIATES)/NOTICE.html
+kernel_notice_file := $(TARGET_OUT_NOTICE_FILES)/src/kernel.txt
+winpthreads_notice_file := $(TARGET_OUT_NOTICE_FILES)/src/winpthreads.txt
+pdk_fusion_notice_files := $(filter $(TARGET_OUT_NOTICE_FILES)/%, $(ALL_PDK_FUSION_FILES))
 
 # TODO(b/69865032): Make PRODUCT_NOTICE_SPLIT the default behavior.
-ifeq ($(PRODUCT_NOTICE_SPLIT),true)
-target_notice_file_html_or_xml := $(TARGET_OUT_INTERMEDIATES)/NOTICE.xml
-target_notice_file_html_or_xml_gz := $(TARGET_OUT_INTERMEDIATES)/NOTICE.xml.gz
+ifneq ($(PRODUCT_NOTICE_SPLIT),true)
+target_notice_file_html := $(TARGET_OUT_INTERMEDIATES)/NOTICE.html
+target_notice_file_html_gz := $(TARGET_OUT_INTERMEDIATES)/NOTICE.html.gz
+installed_notice_html_or_xml_gz := $(TARGET_OUT)/etc/NOTICE.html.gz
+$(eval $(call combine-notice-files, html, \
+	        $(target_notice_file_txt), \
+	        $(target_notice_file_html), \
+	        "Notices for files contained in the filesystem images in this directory:", \
+	        $(TARGET_OUT_NOTICE_FILES), \
+	        $(ALL_DEFAULT_INSTALLED_MODULES) $(kernel_notice_file) $(pdk_fusion_notice_files)))
+$(target_notice_file_html_gz): $(target_notice_file_html) | $(MINIGZIP)
+	$(hide) $(MINIGZIP) -9 < $< > $@
+$(installed_notice_html_or_xml_gz): $(target_notice_file_html_gz)
+	$(copy-file-to-target)
+else
+target_notice_file_xml := $(TARGET_OUT_INTERMEDIATES)/NOTICE.xml
+target_notice_file_xml_gz := $(TARGET_OUT_INTERMEDIATES)/NOTICE.xml.gz
 installed_notice_html_or_xml_gz := $(TARGET_OUT)/etc/NOTICE.xml.gz
 
 target_vendor_notice_file_txt := $(TARGET_OUT_INTERMEDIATES)/NOTICE_VENDOR.txt
@@ -1017,106 +1056,82 @@
 target_product_services_notice_file_xml := $(TARGET_OUT_INTERMEDIATES)/NOTICE_PRODUCT_SERVICES.xml
 target_product_services_notice_file_xml_gz := $(TARGET_OUT_INTERMEDIATES)/NOTICE_PRODUCT_SERVICES.xml.gz
 installed_product_services_notice_xml_gz := $(TARGET_OUT_PRODUCT_SERVICES)/etc/NOTICE.xml.gz
-endif
 
-ifndef TARGET_BUILD_APPS
-kernel_notice_file := $(TARGET_OUT_NOTICE_FILES)/src/kernel.txt
-winpthreads_notice_file := $(TARGET_OUT_NOTICE_FILES)/src/winpthreads.txt
-pdk_fusion_notice_files := $(filter $(TARGET_OUT_NOTICE_FILES)/%, $(ALL_PDK_FUSION_FILES))
+# Notice files are copied to TARGET_OUT_NOTICE_FILES as a side-effect of their module
+# being built. A notice xml file must depend on all modules that could potentially
+# install a license file relevant to it.
+license_modules := $(ALL_DEFAULT_INSTALLED_MODULES) $(kernel_notice_file) $(pdk_fusion_notice_files)
+# Phonys/fakes don't have notice files (though their deps might)
+license_modules := $(filter-out $(TARGET_OUT_FAKE)/%,$(license_modules))
+license_modules_vendor := $(filter $(TARGET_OUT_VENDOR)/%,$(license_modules))
+license_modules_product := $(filter $(TARGET_OUT_PRODUCT)/%,$(license_modules))
+license_modules_product_services := $(filter $(TARGET_OUT_PRODUCT_SERVICES)/%,$(license_modules))
+license_modules_agg := $(license_modules_vendor) $(license_modules_product) $(license_modules_product_services)
+license_modules_rest := $(filter-out $(license_modules_agg),$(license_modules))
 
-ifdef target_vendor_notice_file_xml_gz
 $(eval $(call combine-notice-files, xml_excluded_extra_partitions, \
-			$(target_notice_file_txt), \
-			$(target_notice_file_html_or_xml), \
-			"Notices for files contained in the filesystem images in this directory:", \
-			$(TARGET_OUT_NOTICE_FILES), \
-			$(ALL_DEFAULT_INSTALLED_MODULES) $(kernel_notice_file) $(pdk_fusion_notice_files)))
+	        $(target_notice_file_txt), \
+	        $(target_notice_file_xml), \
+	        "Notices for files contained in the filesystem images in this directory:", \
+	        $(TARGET_OUT_NOTICE_FILES), \
+	        $(license_modules_rest)))
 $(eval $(call combine-notice-files, xml_vendor, \
-			$(target_vendor_notice_file_txt), \
-			$(target_vendor_notice_file_xml), \
-			"Notices for files contained in the vendor filesystem image in this directory:", \
-			$(TARGET_OUT_NOTICE_FILES), \
-			$(target_notice_file_html_or_xml)))
-ifdef target_product_notice_file_txt
+	        $(target_vendor_notice_file_txt), \
+	        $(target_vendor_notice_file_xml), \
+	        "Notices for files contained in the vendor filesystem image in this directory:", \
+	        $(TARGET_OUT_NOTICE_FILES), \
+	        $(license_modules_vendor)))
 $(eval $(call combine-notice-files, xml_product, \
-			$(target_product_notice_file_txt), \
-			$(target_product_notice_file_xml), \
-			"Notices for files contained in the product filesystem image in this directory:", \
-			$(TARGET_OUT_NOTICE_FILES), \
-			$(target_notice_file_html_or_xml)))
-endif
-ifdef target_product_services_notice_file_txt
+	        $(target_product_notice_file_txt), \
+	        $(target_product_notice_file_xml), \
+	        "Notices for files contained in the product filesystem image in this directory:", \
+	        $(TARGET_OUT_NOTICE_FILES), \
+	        $(license_modules_product)))
 $(eval $(call combine-notice-files, xml_product_services, \
-			$(target_product_services_notice_file_txt), \
-			$(target_product_services_notice_file_xml), \
-			"Notices for files contained in the product_services filesystem image in this directory:", \
-			$(TARGET_OUT_NOTICE_FILES), \
-			$(target_notice_file_html_or_xml)))
-endif
-else
-$(eval $(call combine-notice-files, html, \
-			$(target_notice_file_txt), \
-			$(target_notice_file_html_or_xml), \
-			"Notices for files contained in the filesystem images in this directory:", \
-			$(TARGET_OUT_NOTICE_FILES), \
-			$(ALL_DEFAULT_INSTALLED_MODULES) $(kernel_notice_file) $(pdk_fusion_notice_files)))
-endif
+	        $(target_product_services_notice_file_txt), \
+	        $(target_product_services_notice_file_xml), \
+	        "Notices for files contained in the product_services filesystem image in this directory:", \
+	        $(TARGET_OUT_NOTICE_FILES), \
+	        $(license_modules_product_services)))
 
-$(eval $(call combine-notice-files, html, \
-			$(tools_notice_file_txt), \
-			$(tools_notice_file_html), \
-			"Notices for files contained in the tools directory:", \
-			$(HOST_OUT_NOTICE_FILES), \
-			$(ALL_DEFAULT_INSTALLED_MODULES) \
-			$(winpthreads_notice_file)))
-
-# Install the html file at /system/etc/NOTICE.html.gz.
-# This is not ideal, but this is very late in the game, after a lot of
-# the module processing has already been done -- in fact, we used the
-# fact that all that has been done to get the list of modules that we
-# need notice files for.
-$(target_notice_file_html_or_xml_gz): $(target_notice_file_html_or_xml) | $(MINIGZIP)
+$(target_notice_file_xml_gz): $(target_notice_file_xml) | $(MINIGZIP)
 	$(hide) $(MINIGZIP) -9 < $< > $@
-$(installed_notice_html_or_xml_gz): $(target_notice_file_html_or_xml_gz)
-	$(copy-file-to-target)
-
-ifdef target_vendor_notice_file_xml_gz
-# Install the vendor html file at /vendor/etc/NOTICE.xml.gz.
 $(target_vendor_notice_file_xml_gz): $(target_vendor_notice_file_xml) | $(MINIGZIP)
 	$(hide) $(MINIGZIP) -9 < $< > $@
-$(installed_vendor_notice_xml_gz): $(target_vendor_notice_file_xml_gz)
-	$(copy-file-to-target)
-endif
-
-ifdef target_product_notice_file_xml_gz
-# Install the product html file at /product/etc/NOTICE.xml.gz.
 $(target_product_notice_file_xml_gz): $(target_product_notice_file_xml) | $(MINIGZIP)
 	$(hide) $(MINIGZIP) -9 < $< > $@
-$(installed_product_notice_xml_gz): $(target_product_notice_file_xml_gz)
-	$(copy-file-to-target)
-endif
-
-ifdef target_product_services_notice_file_xml_gz
-# Install the product html file at /product_services/etc/NOTICE.xml.gz.
 $(target_product_services_notice_file_xml_gz): $(target_product_services_notice_file_xml) | $(MINIGZIP)
 	$(hide) $(MINIGZIP) -9 < $< > $@
+$(installed_notice_html_or_xml_gz): $(target_notice_file_xml_gz)
+	$(copy-file-to-target)
+$(installed_vendor_notice_xml_gz): $(target_vendor_notice_file_xml_gz)
+	$(copy-file-to-target)
+$(installed_product_notice_xml_gz): $(target_product_notice_file_xml_gz)
+	$(copy-file-to-target)
 $(installed_product_services_notice_xml_gz): $(target_product_services_notice_file_xml_gz)
 	$(copy-file-to-target)
-endif
 
 # if we've been run my mm, mmm, etc, don't reinstall this every time
 ifeq ($(ONE_SHOT_MAKEFILE),)
   ALL_DEFAULT_INSTALLED_MODULES += $(installed_notice_html_or_xml_gz)
-  ifdef target_vendor_notice_file_xml_gz
-    ALL_DEFAULT_INSTALLED_MODULES += $(installed_vendor_notice_xml_gz)
-  endif
-  ifdef target_product_notice_file_xml_gz
-    ALL_DEFAULT_INSTALLED_MODULES += $(installed_product_notice_xml_gz)
-  endif
-  ifdef target_product_services_notice_file_xml_gz
-    ALL_DEFAULT_INSTALLED_MODULES += $(installed_product_services_notice_xml_gz)
-  endif
+  ALL_DEFAULT_INSTALLED_MODULES += $(installed_vendor_notice_xml_gz)
+  ALL_DEFAULT_INSTALLED_MODULES += $(installed_product_notice_xml_gz)
+  ALL_DEFAULT_INSTALLED_MODULES += $(installed_product_services_notice_xml_gz)
 endif
+endif # PRODUCT_NOTICE_SPLIT
+
+ifeq ($(ONE_SHOT_MAKEFILE),)
+  ALL_DEFAULT_INSTALLED_MODULES += $(installed_notice_html_or_xml_gz)
+endif
+
+$(eval $(call combine-notice-files, html, \
+	        $(tools_notice_file_txt), \
+	        $(tools_notice_file_html), \
+	        "Notices for files contained in the tools directory:", \
+	        $(HOST_OUT_NOTICE_FILES), \
+	        $(ALL_DEFAULT_INSTALLED_MODULES) \
+	        $(winpthreads_notice_file)))
+
 endif  # TARGET_BUILD_APPS
 
 # The kernel isn't really a module, so to get its module file in there, we
@@ -1164,7 +1179,7 @@
 ALL_DEFAULT_INSTALLED_MODULES += \
     $(TARGET_RECOVERY_ROOT_OUT)/system/etc/update_engine/update-payload-key.pub.pem
 $(TARGET_RECOVERY_ROOT_OUT)/system/etc/update_engine/update-payload-key.pub.pem: \
-		$(TARGET_OUT_ETC)/update_engine/update-payload-key.pub.pem
+	    $(TARGET_OUT_ETC)/update_engine/update-payload-key.pub.pem
 	$(hide) cp -f $< $@
 endif
 endif
@@ -1241,7 +1256,7 @@
 INTERNAL_USERIMAGES_DEPS += $(MKE2FS_CONF)
 endif
 
-ifeq (true,$(PRODUCT_USE_LOGICAL_PARTITIONS))
+ifeq (true,$(PRODUCT_USE_DYNAMIC_PARTITIONS))
 
 ifeq ($(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_SUPPORTS_VERITY),true)
   $(error vboot 1.0 doesn't support logical partition)
@@ -1250,7 +1265,7 @@
 # TODO(b/80195851): Should not define BOARD_AVB_SYSTEM_KEY_PATH without
 # BOARD_AVB_SYSTEM_DETACHED_VBMETA.
 
-endif # PRODUCT_USE_LOGICAL_PARTITIONS
+endif # PRODUCT_USE_DYNAMIC_PARTITIONS
 
 # $(1): the path of the output dictionary file
 # $(2): a subset of "system vendor cache userdata product product_services oem odm"
@@ -1592,13 +1607,13 @@
 endef
 
 $(INSTALLED_RECOVERY_BUILD_PROP_TARGET): \
-		$(INSTALLED_DEFAULT_PROP_TARGET) \
-		$(INSTALLED_VENDOR_DEFAULT_PROP_TARGET) \
-		$(intermediate_system_build_prop) \
-		$(INSTALLED_VENDOR_BUILD_PROP_TARGET) \
-		$(INSTALLED_ODM_BUILD_PROP_TARGET) \
-		$(INSTALLED_PRODUCT_BUILD_PROP_TARGET) \
-		$(INSTALLED_PRODUCT_SERVICES_BUILD_PROP_TARGET)
+	    $(INSTALLED_DEFAULT_PROP_TARGET) \
+	    $(INSTALLED_VENDOR_DEFAULT_PROP_TARGET) \
+	    $(intermediate_system_build_prop) \
+	    $(INSTALLED_VENDOR_BUILD_PROP_TARGET) \
+	    $(INSTALLED_ODM_BUILD_PROP_TARGET) \
+	    $(INSTALLED_PRODUCT_BUILD_PROP_TARGET) \
+	    $(INSTALLED_PRODUCT_SERVICES_BUILD_PROP_TARGET)
 	@echo "Target recovery buildinfo: $@"
 	$(hide) mkdir -p $(dir $@)
 	$(hide) rm -f $@
@@ -1656,9 +1671,9 @@
   # Copying baseline ramdisk...
   # Use rsync because "cp -Rf" fails to overwrite broken symlinks on Mac.
   $(hide) rsync -a --exclude=sdcard $(IGNORE_RECOVERY_SEPOLICY) $(IGNORE_CACHE_LINK) $(TARGET_ROOT_OUT) $(TARGET_RECOVERY_OUT)
-  $(if $(filter true,$(BOARD_BUILD_SYSTEM_ROOT_IMAGE)),, \
-    $(hide) rsync -a $(TARGET_RAMDISK_OUT)/* $(TARGET_RECOVERY_ROOT_OUT)/)
   # Modifying ramdisk contents...
+  $(if $(filter true,$(BOARD_BUILD_SYSTEM_ROOT_IMAGE)),, \
+    $(hide) ln -sf /system/bin/init $(TARGET_RECOVERY_ROOT_OUT)/init)
   $(if $(BOARD_RECOVERY_KERNEL_MODULES), \
     $(call build-image-kernel-modules,$(BOARD_RECOVERY_KERNEL_MODULES),$(TARGET_RECOVERY_ROOT_OUT),,$(call intermediates-dir-for,PACKAGING,depmod_recovery)))
   # Removes $(TARGET_RECOVERY_ROOT_OUT)/init*.rc EXCEPT init.recovery*.rc.
@@ -1715,17 +1730,17 @@
 endif
 
 $(INSTALLED_BOOTIMAGE_TARGET): $(MKBOOTFS) $(MKBOOTIMG) $(MINIGZIP) \
-		$(INTERNAL_ROOT_FILES) \
-		$(INSTALLED_RAMDISK_TARGET) \
-		$(INTERNAL_RECOVERYIMAGE_FILES) \
-		$(recovery_initrc) $(recovery_sepolicy) $(recovery_kernel) \
-		$(INSTALLED_2NDBOOTLOADER_TARGET) \
-		$(INSTALLED_RECOVERY_BUILD_PROP_TARGET) \
-		$(recovery_resource_deps) \
-		$(recovery_fstab) \
-		$(RECOVERY_INSTALL_OTA_KEYS) \
-		$(BOARD_RECOVERY_KERNEL_MODULES) \
-		$(DEPMOD)
+	    $(INTERNAL_ROOT_FILES) \
+	    $(INSTALLED_RAMDISK_TARGET) \
+	    $(INTERNAL_RECOVERYIMAGE_FILES) \
+	    $(recovery_initrc) $(recovery_sepolicy) $(recovery_kernel) \
+	    $(INSTALLED_2NDBOOTLOADER_TARGET) \
+	    $(INSTALLED_RECOVERY_BUILD_PROP_TARGET) \
+	    $(recovery_resource_deps) \
+	    $(recovery_fstab) \
+	    $(RECOVERY_INSTALL_OTA_KEYS) \
+	    $(BOARD_RECOVERY_KERNEL_MODULES) \
+	    $(DEPMOD)
 	$(call pretty,"Target boot image from recovery: $@")
 	$(call build-recoveryimage-target, $@)
 endif # BOARD_USES_RECOVERY_AS_BOOT
@@ -1735,18 +1750,18 @@
 endif
 
 $(INSTALLED_RECOVERYIMAGE_TARGET): $(MKBOOTFS) $(MKBOOTIMG) $(MINIGZIP) \
-		$(INTERNAL_ROOT_FILES) \
-		$(INSTALLED_RAMDISK_TARGET) \
-		$(INSTALLED_BOOTIMAGE_TARGET) \
-		$(INTERNAL_RECOVERYIMAGE_FILES) \
-		$(recovery_initrc) $(recovery_sepolicy) $(recovery_kernel) \
-		$(INSTALLED_2NDBOOTLOADER_TARGET) \
-		$(INSTALLED_RECOVERY_BUILD_PROP_TARGET) \
-		$(recovery_resource_deps) \
-		$(recovery_fstab) \
-		$(RECOVERY_INSTALL_OTA_KEYS) \
-		$(BOARD_RECOVERY_KERNEL_MODULES) \
-		$(DEPMOD)
+	    $(INTERNAL_ROOT_FILES) \
+	    $(INSTALLED_RAMDISK_TARGET) \
+	    $(INSTALLED_BOOTIMAGE_TARGET) \
+	    $(INTERNAL_RECOVERYIMAGE_FILES) \
+	    $(recovery_initrc) $(recovery_sepolicy) $(recovery_kernel) \
+	    $(INSTALLED_2NDBOOTLOADER_TARGET) \
+	    $(INSTALLED_RECOVERY_BUILD_PROP_TARGET) \
+	    $(recovery_resource_deps) \
+	    $(recovery_fstab) \
+	    $(RECOVERY_INSTALL_OTA_KEYS) \
+	    $(BOARD_RECOVERY_KERNEL_MODULES) \
+	    $(DEPMOD)
 	$(call build-recoveryimage-target, $@)
 
 ifdef RECOVERY_RESOURCE_ZIP
@@ -1816,11 +1831,11 @@
 	@echo "Verifying system VINTF manifest."
 	PRODUCT_ENFORCE_VINTF_MANIFEST=$(PRODUCT_ENFORCE_VINTF_MANIFEST) \
 	$(HOST_OUT_EXECUTABLES)/assemble_vintf \
-		-c $(BUILT_VENDOR_MATRIX) \
-		-i $(BUILT_SYSTEM_MANIFEST) \
-		$$([ -d $(TARGET_OUT)/etc/vintf/manifest ] && \
-			find $(TARGET_OUT)/etc/vintf/manifest -type f -name "*.xml" | \
-			sed "s/^/-i /" | tr '\n' ' ') -o $@
+	    -c $(BUILT_VENDOR_MATRIX) \
+	    -i $(BUILT_SYSTEM_MANIFEST) \
+	    $$([ -d $(TARGET_OUT)/etc/vintf/manifest ] && \
+	        find $(TARGET_OUT)/etc/vintf/manifest -type f -name "*.xml" | \
+	        sed "s/^/-i /" | tr '\n' ' ') -o $@
 
 # -----------------------------------------------------------------
 # installed file list
@@ -1952,9 +1967,9 @@
 RECOVERY_FROM_BOOT_PATCH := $(intermediates)/recovery_from_boot.p
 $(RECOVERY_FROM_BOOT_PATCH): PRIVATE_DIFF_TOOL := $(diff_tool)
 $(RECOVERY_FROM_BOOT_PATCH): \
-		$(INSTALLED_RECOVERYIMAGE_TARGET) \
-		$(INSTALLED_BOOTIMAGE_TARGET) \
-		$(diff_tool)
+	    $(INSTALLED_RECOVERYIMAGE_TARGET) \
+	    $(INSTALLED_BOOTIMAGE_TARGET) \
+	    $(diff_tool)
 	@echo "Construct recovery from boot"
 	mkdir -p $(dir $@)
 	$(PRIVATE_DIFF_TOOL) $(INSTALLED_BOOTIMAGE_TARGET) $(INSTALLED_RECOVERYIMAGE_TARGET) $@
@@ -1968,8 +1983,8 @@
 	@echo "Install system fs image: $@"
 	$(copy-file-to-target)
 	$(hide) $(call assert-max-image-size,$@ $(RECOVERY_FROM_BOOT_PATCH),\
-		$(call read-image-prop-dictionary,\
-			$(systemimage_intermediates)/generated_system_image_info.txt,system_size))
+	    $(call read-image-prop-dictionary,\
+	        $(systemimage_intermediates)/generated_system_image_info.txt,system_size))
 
 systemimage: $(INSTALLED_SYSTEMIMAGE_TARGET)
 
@@ -1979,8 +1994,8 @@
 	@echo "make $@: ignoring dependencies"
 	$(call build-systemimage-target,$(INSTALLED_SYSTEMIMAGE_TARGET))
 	$(hide) $(call assert-max-image-size,$(INSTALLED_SYSTEMIMAGE_TARGET),\
-		$(call read-image-prop-dictionary,\
-			$(systemimage_intermediates)/generated_system_image_info.txt,system_size))
+	    $(call read-image-prop-dictionary,\
+	        $(systemimage_intermediates)/generated_system_image_info.txt,system_size))
 
 ifneq (,$(filter systemimage-nodeps snod, $(MAKECMDGOALS)))
 ifeq (true,$(WITH_DEXPREOPT))
@@ -1988,8 +2003,8 @@
 endif
 endif
 
-.PHONY: sync
-sync: $(INTERNAL_SYSTEMIMAGE_FILES)
+.PHONY: sync syncsys
+sync syncsys: $(INTERNAL_SYSTEMIMAGE_FILES)
 
 #######
 ## system tarball
@@ -2213,8 +2228,8 @@
     $(call pretty,"Target userdata fs tarball: " \
                   "$(INSTALLED_USERDATATARBALL_TARGET)")
     $(MKTARBALL) $(FS_GET_STATS) \
-		$(PRODUCT_OUT) data $(PRIVATE_USERDATA_TAR) \
-		$(INSTALLED_USERDATATARBALL_TARGET) $(TARGET_OUT)
+	    $(PRODUCT_OUT) data $(PRIVATE_USERDATA_TAR) \
+	    $(INSTALLED_USERDATATARBALL_TARGET) $(TARGET_OUT)
 endef
 
 userdata_tar := $(PRODUCT_OUT)/userdata.tar
@@ -2390,11 +2405,11 @@
 	PRODUCT_ENFORCE_VINTF_MANIFEST=$(PRODUCT_ENFORCE_VINTF_MANIFEST) \
 	$(PRIVATE_SYSTEM_ASSEMBLE_VINTF_ENV_VARS) \
 	$(HOST_OUT_EXECUTABLES)/assemble_vintf \
-		-c $(BUILT_SYSTEM_MATRIX) \
-		-i $(BUILT_VENDOR_MANIFEST) \
-		$$([ -d $(TARGET_OUT_VENDOR)/etc/vintf/manifest ] && \
-			find $(TARGET_OUT_VENDOR)/etc/vintf/manifest -type f -name "*.xml" | \
-			sed "s/^/-i /" | tr '\n' ' ') -o $@
+	    -c $(BUILT_SYSTEM_MATRIX) \
+	    -i $(BUILT_VENDOR_MANIFEST) \
+	    $$([ -d $(TARGET_OUT_VENDOR)/etc/vintf/manifest ] && \
+	        find $(TARGET_OUT_VENDOR)/etc/vintf/manifest -type f -name "*.xml" | \
+	        sed "s/^/-i /" | tr '\n' ' ') -o $@
 endif # BUILT_VENDOR_MANIFEST
 
 # platform.zip depends on $(INTERNAL_VENDORIMAGE_FILES).
@@ -2624,10 +2639,10 @@
 $(INSTALLED_DTBOIMAGE_TARGET): $(BOARD_PREBUILT_DTBOIMAGE) $(AVBTOOL) $(BOARD_AVB_DTBO_KEY_PATH)
 	cp $(BOARD_PREBUILT_DTBOIMAGE) $@
 	$(AVBTOOL) add_hash_footer \
-		--image $@ \
-		--partition_size $(BOARD_DTBOIMG_PARTITION_SIZE) \
-		--partition_name dtbo $(INTERNAL_AVB_DTBO_SIGNING_ARGS) \
-		$(BOARD_AVB_DTBO_ADD_HASH_FOOTER_ARGS)
+	    --image $@ \
+	    --partition_size $(BOARD_DTBOIMG_PARTITION_SIZE) \
+	    --partition_name dtbo $(INTERNAL_AVB_DTBO_SIGNING_ARGS) \
+	    $(BOARD_AVB_DTBO_ADD_HASH_FOOTER_ARGS)
 else
 $(INSTALLED_DTBOIMAGE_TARGET): $(BOARD_PREBUILT_DTBOIMAGE)
 	cp $(BOARD_PREBUILT_DTBOIMAGE) $@
@@ -2851,18 +2866,18 @@
 ifdef BOARD_AVB_VBMETA_SYSTEM
 INSTALLED_VBMETA_SYSTEMIMAGE_TARGET := $(PRODUCT_OUT)/vbmeta_system.img
 $(INSTALLED_VBMETA_SYSTEMIMAGE_TARGET): \
-		$(AVBTOOL) \
-		$(call images-for-partitions,$(BOARD_AVB_VBMETA_SYSTEM)) \
-		$(BOARD_AVB_VBMETA_SYSTEM_KEY_PATH)
+	    $(AVBTOOL) \
+	    $(call images-for-partitions,$(BOARD_AVB_VBMETA_SYSTEM)) \
+	    $(BOARD_AVB_VBMETA_SYSTEM_KEY_PATH)
 	$(call build-chained-vbmeta-image,vbmeta_system)
 endif
 
 ifdef BOARD_AVB_VBMETA_VENDOR
 INSTALLED_VBMETA_VENDORIMAGE_TARGET := $(PRODUCT_OUT)/vbmeta_vendor.img
 $(INSTALLED_VBMETA_VENDORIMAGE_TARGET): \
-		$(AVBTOOL) \
-		$(call images-for-partitions,$(BOARD_AVB_VBMETA_VENDOR)) \
-		$(BOARD_AVB_VBMETA_VENDOR_KEY_PATH)
+	    $(AVBTOOL) \
+	    $(call images-for-partitions,$(BOARD_AVB_VBMETA_VENDOR)) \
+	    $(BOARD_AVB_VBMETA_VENDOR_KEY_PATH)
 	$(call build-chained-vbmeta-image,vbmeta_vendor)
 endif
 
@@ -2883,20 +2898,20 @@
     --algorithm $(BOARD_AVB_ALGORITHM) --key $(BOARD_AVB_KEY_PATH)
 
 $(INSTALLED_VBMETAIMAGE_TARGET): \
-		$(AVBTOOL) \
-		$(INSTALLED_BOOTIMAGE_TARGET) \
-		$(INSTALLED_SYSTEMIMAGE_TARGET) \
-		$(INSTALLED_VENDORIMAGE_TARGET) \
-		$(INSTALLED_PRODUCTIMAGE_TARGET) \
-		$(INSTALLED_PRODUCT_SERVICESIMAGE_TARGET) \
-		$(INSTALLED_ODMIMAGE_TARGET) \
-		$(INSTALLED_DTBOIMAGE_TARGET) \
-		$(INSTALLED_RECOVERYIMAGE_TARGET) \
-		$(INSTALLED_VBMETA_SYSTEMIMAGE_TARGET) \
-		$(INSTALLED_VBMETA_VENDORIMAGE_TARGET) \
-		$(BOARD_AVB_VBMETA_SYSTEM_KEY_PATH) \
-		$(BOARD_AVB_VBMETA_VENDOR_KEY_PATH) \
-		$(BOARD_AVB_KEY_PATH)
+	    $(AVBTOOL) \
+	    $(INSTALLED_BOOTIMAGE_TARGET) \
+	    $(INSTALLED_SYSTEMIMAGE_TARGET) \
+	    $(INSTALLED_VENDORIMAGE_TARGET) \
+	    $(INSTALLED_PRODUCTIMAGE_TARGET) \
+	    $(INSTALLED_PRODUCT_SERVICESIMAGE_TARGET) \
+	    $(INSTALLED_ODMIMAGE_TARGET) \
+	    $(INSTALLED_DTBOIMAGE_TARGET) \
+	    $(INSTALLED_RECOVERYIMAGE_TARGET) \
+	    $(INSTALLED_VBMETA_SYSTEMIMAGE_TARGET) \
+	    $(INSTALLED_VBMETA_VENDORIMAGE_TARGET) \
+	    $(BOARD_AVB_VBMETA_SYSTEM_KEY_PATH) \
+	    $(BOARD_AVB_VBMETA_VENDOR_KEY_PATH) \
+	    $(BOARD_AVB_KEY_PATH)
 	$(build-vbmetaimage-target)
 
 .PHONY: vbmetaimage-nodeps
@@ -2919,27 +2934,20 @@
 # BOARD_SUPER_PARTITION_SIZE must be defined to build super image.
 ifneq ($(BOARD_SUPER_PARTITION_SIZE),)
 
-INSTALLED_SUPERIMAGE_TARGET := $(PRODUCT_OUT)/super.img
-INSTALLED_SUPERIMAGE_EMPTY_TARGET := $(PRODUCT_OUT)/super_empty.img
-
-$(INSTALLED_SUPERIMAGE_TARGET): $(call images-for-partitions,$(BOARD_SUPER_PARTITION_PARTITION_LIST))
-
-# 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.
-ifeq ($(AB_OTA_UPDATER),true)
-$(INSTALLED_SUPERIMAGE_TARGET) $(INSTALLED_SUPERIMAGE_EMPTY_TARGET): PRIVATE_PARTITION_SUFFIX=_a
-endif # AB_OTA_UPDATER
-
-$(INSTALLED_SUPERIMAGE_TARGET) $(INSTALLED_SUPERIMAGE_EMPTY_TARGET): $(LPMAKE)
+define super-slot-suffix
+$(if $(filter true,$(AB_OTA_UPDATER)),$(if $(filter true,$(PRODUCT_RETROFIT_DYNAMIC_PARTITIONS)),,_a))
+endef
 
 # $(1): slot A suffix (_a or empty)
 # $(2): include images or not (true or empty)
 define build-superimage-target-args
   $(if $(2), --sparse) \
   --metadata-size 65536 \
-  --metadata-slots $(if $(1),2,1) \
-  --device-size $(BOARD_SUPER_PARTITION_SIZE) \
+  --metadata-slots $(if $(filter true,$(AB_OTA_UPDATER)),2,1) \
+  --super-name $(BOARD_SUPER_PARTITION_METADATA_DEVICE) \
+  $(if $(filter true,$(PRODUCT_RETROFIT_DYNAMIC_PARTITIONS)), $(if $(filter true,$(AB_OTA_UPDATER)), --auto-slot-suffixing)) \
+  $(foreach device,$(BOARD_SUPER_PARTITION_BLOCK_DEVICES), \
+    --device $(device):$(BOARD_SUPER_PARTITION_$(call to-upper,$(device))_DEVICE_SIZE)) \
   $(foreach group,$(BOARD_SUPER_PARTITION_GROUPS), \
     --group $(group)$(1):$(BOARD_$(call to-upper,$(group))_SIZE) \
     $(if $(1), --group $(group)_b:$(BOARD_$(call to-upper,$(group))_SIZE)) \
@@ -2959,15 +2967,23 @@
     --output $(1)
 endef
 
-$(INSTALLED_SUPERIMAGE_TARGET):
+# For A/B devices, super partition always contains sub-partitions in the _a slot, because this
+# image should only be used for bootstrapping / initializing the device. When flashing the image,
+# bootloader fastboot should always mark _a slot as bootable.
+
+ifneq (true,$(PRODUCT_RETROFIT_DYNAMIC_PARTITIONS))
+INSTALLED_SUPERIMAGE_TARGET := $(PRODUCT_OUT)/super.img
+$(INSTALLED_SUPERIMAGE_TARGET): $(LPMAKE) $(call images-for-partitions,$(BOARD_SUPER_PARTITION_PARTITION_LIST))
 	$(call pretty,"Target super fs image: $@")
-	$(call build-superimage-target,$@,$(PRIVATE_PARTITION_SUFFIX),true)
+	$(call build-superimage-target,$@,$(call super-slot-suffix),true)
+endif
 
 $(call dist-for-goals,dist_files,$(INSTALLED_SUPERIMAGE_TARGET))
 
-$(INSTALLED_SUPERIMAGE_EMPTY_TARGET):
+INSTALLED_SUPERIMAGE_EMPTY_TARGET := $(PRODUCT_OUT)/super_empty.img
+$(INSTALLED_SUPERIMAGE_EMPTY_TARGET): $(LPMAKE)
 	$(call pretty,"Target empty super fs image: $@")
-	$(call build-superimage-target,$@,$(PRIVATE_PARTITION_SUFFIX))
+	$(call build-superimage-target,$@,$(call super-slot-suffix))
 
 $(call dist-for-goals,dist_files,$(INSTALLED_SUPERIMAGE_EMPTY_TARGET))
 
@@ -2989,6 +3005,24 @@
 # Add image dependencies so that generated_*_image_info.txt are written before checking.
 check-all-partition-sizes: $(call images-for-partitions,$(BOARD_SUPER_PARTITION_PARTITION_LIST))
 
+ifeq ($(PRODUCT_RETROFIT_DYNAMIC_PARTITIONS),true)
+# Check sum(super partition block devices) == super partition
+# Non-retrofit devices already defines BOARD_SUPER_PARTITION_SUPER_DEVICE_SIZE = BOARD_SUPER_PARTITION_SIZE
+define check-super-partition-size
+  size_list="$(foreach device,$(call to-upper,$(BOARD_SUPER_PARTITION_BLOCK_DEVICES)),$(BOARD_SUPER_PARTITION_$(device)_DEVICE_SIZE))"; \
+  sum_sizes_expr=$$(sed -e 's/ /+/g' <<< "$${size_list}"); \
+  max_size_expr="$(BOARD_SUPER_PARTITION_SIZE)"; \
+  if [ $$(( $${sum_sizes_expr} )) -ne $$(( $${max_size_expr} )) ]; then \
+    echo "The sum of super partition block device sizes is not equal to BOARD_SUPER_PARTITION_SIZE:"; \
+    echo $${sum_sizes_expr} '!=' $${max_size_expr}; \
+    exit 1; \
+  else \
+    echo "The sum of super partition block device sizes is equal to BOARD_SUPER_PARTITION_SIZE:"; \
+    echo $${sum_sizes_expr} '==' $${max_size_expr}; \
+  fi
+endef
+endif
+
 # $(1): human-readable max size string
 # $(2): max size expression
 # $(3): list of partition names
@@ -3006,21 +3040,21 @@
 endef
 
 define check-all-partition-sizes-target
-  # Check sum(all partitions) <= super partition (/ 2 for A/B)
+  # Check sum(all partitions) <= super partition (/ 2 for A/B devices launched with dynamic partitions)
   $(if $(BOARD_SUPER_PARTITION_SIZE),$(if $(BOARD_SUPER_PARTITION_PARTITION_LIST), \
-    $(call check-sum-of-partition-sizes,BOARD_SUPER_PARTITION_SIZE$(if $(filter true,$(AB_OTA_UPDATER)), / 2), \
-      $(BOARD_SUPER_PARTITION_SIZE)$(if $(filter true,$(AB_OTA_UPDATER)), / 2),$(BOARD_SUPER_PARTITION_PARTITION_LIST))))
+    $(call check-sum-of-partition-sizes,BOARD_SUPER_PARTITION_SIZE$(if $(call super-slot-suffix), / 2), \
+      $(BOARD_SUPER_PARTITION_SIZE)$(if $(call super-slot-suffix), / 2),$(BOARD_SUPER_PARTITION_PARTITION_LIST))))
 
   # For each group, check sum(partitions in group) <= group size
   $(foreach group,$(call to-upper,$(BOARD_SUPER_PARTITION_GROUPS)), \
     $(if $(BOARD_$(group)_SIZE),$(if $(BOARD_$(group)_PARTITION_LIST), \
       $(call check-sum-of-partition-sizes,BOARD_$(group)_SIZE,$(BOARD_$(group)_SIZE),$(BOARD_$(group)_PARTITION_LIST)))))
 
-  # Check sum(all group sizes) <= super partition (/ 2 for A/B)
+  # Check sum(all group sizes) <= super partition (/ 2 for A/B devices launched with dynamic partitions)
   if [[ ! -z $(BOARD_SUPER_PARTITION_SIZE) ]]; then \
     group_size_list="$(foreach group,$(call to-upper,$(BOARD_SUPER_PARTITION_GROUPS)),$(BOARD_$(group)_SIZE))"; \
     sum_sizes_expr=$$(sed -e 's/ /+/g' <<< "$${group_size_list}"); \
-    max_size_tail=$(if $(filter true,$(AB_OTA_UPDATER))," / 2"); \
+    max_size_tail=$(if $(call super-slot-suffix)," / 2"); \
     max_size_expr="$(BOARD_SUPER_PARTITION_SIZE)$${max_size_tail}"; \
     if [ $$(( $${sum_sizes_expr} )) -gt $$(( $${max_size_expr} )) ]; then \
       echo "The sum of sizes of [$(strip $(BOARD_SUPER_PARTITION_GROUPS))] is larger than BOARD_SUPER_PARTITION_SIZE$${max_size_tail}:"; \
@@ -3035,6 +3069,7 @@
 
 check-all-partition-sizes check-all-partition-sizes-nodeps:
 	$(call check-all-partition-sizes-target)
+	$(call check-super-partition-size)
 
 endif # PRODUCT_BUILD_SUPER_PARTITION
 
@@ -3058,7 +3093,7 @@
   ifeq ($(TARGET_SKIP_OTA_PACKAGE),true)
     build_ota_package := false
   endif
-  ifneq ($(strip $(SANITIZE_TARGET)),)
+  ifneq (,$(filter address, $(SANITIZE_TARGET)))
     build_ota_package := false
   endif
   ifeq ($(TARGET_PRODUCT),sdk)
@@ -3229,7 +3264,7 @@
 BUILT_TARGET_FILES_PACKAGE := $(intermediates)/$(name).zip
 $(BUILT_TARGET_FILES_PACKAGE): intermediates := $(intermediates)
 $(BUILT_TARGET_FILES_PACKAGE): \
-		zip_root := $(intermediates)/$(name)
+	    zip_root := $(intermediates)/$(name)
 
 # $(1): Directory to copy
 # $(2): Location to copy it to
@@ -3244,7 +3279,7 @@
 built_ota_tools :=
 
 # We can't build static executables when SANITIZE_TARGET=address
-ifeq ($(strip $(SANITIZE_TARGET)),)
+ifeq (,$(filter address, $(SANITIZE_TARGET)))
 built_ota_tools += \
     $(call intermediates-dir-for,EXECUTABLES,updater,,,$(TARGET_PREFER_32_BIT))/updater
 endif
@@ -3297,43 +3332,43 @@
 # Depending on the various images guarantees that the underlying
 # directories are up-to-date.
 $(BUILT_TARGET_FILES_PACKAGE): \
-		$(INSTALLED_RAMDISK_TARGET) \
-		$(INSTALLED_BOOTIMAGE_TARGET) \
-		$(INSTALLED_RADIOIMAGE_TARGET) \
-		$(INSTALLED_RECOVERYIMAGE_TARGET) \
-		$(FULL_SYSTEMIMAGE_DEPS) \
-		$(INSTALLED_USERDATAIMAGE_TARGET) \
-		$(INSTALLED_CACHEIMAGE_TARGET) \
-		$(INSTALLED_VENDORIMAGE_TARGET) \
-		$(INSTALLED_PRODUCTIMAGE_TARGET) \
-		$(INSTALLED_PRODUCT_SERVICESIMAGE_TARGET) \
-		$(INSTALLED_VBMETAIMAGE_TARGET) \
-		$(INSTALLED_ODMIMAGE_TARGET) \
-		$(INSTALLED_DTBOIMAGE_TARGET) \
-		$(INTERNAL_SYSTEMOTHERIMAGE_FILES) \
-		$(INSTALLED_ANDROID_INFO_TXT_TARGET) \
-		$(INSTALLED_KERNEL_TARGET) \
-		$(INSTALLED_2NDBOOTLOADER_TARGET) \
-		$(BOARD_PREBUILT_DTBOIMAGE) \
-		$(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_SYSTEM_BASE_FS_PATH) \
-		$(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_VENDOR_BASE_FS_PATH) \
-		$(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_PRODUCT_BASE_FS_PATH) \
-		$(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_PRODUCT_SERVICES_BASE_FS_PATH) \
-		$(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_ODM_BASE_FS_PATH) \
-		$(LPMAKE) \
-		$(SELINUX_FC) \
-		$(APKCERTS_FILE) \
-		$(SOONG_ZIP) \
-		$(HOST_OUT_EXECUTABLES)/fs_config \
-		$(HOST_OUT_EXECUTABLES)/imgdiff \
-		$(HOST_OUT_EXECUTABLES)/bsdiff \
-		$(HOST_OUT_EXECUTABLES)/care_map_generator \
-		$(BUILD_IMAGE_SRCS) \
-		$(BUILT_ASSEMBLED_SYSTEM_MANIFEST) \
-		$(BUILT_ASSEMBLED_VENDOR_MANIFEST) \
-		$(BUILT_SYSTEM_MATRIX) \
-		$(BUILT_VENDOR_MATRIX) \
-		| $(ACP)
+	    $(INSTALLED_RAMDISK_TARGET) \
+	    $(INSTALLED_BOOTIMAGE_TARGET) \
+	    $(INSTALLED_RADIOIMAGE_TARGET) \
+	    $(INSTALLED_RECOVERYIMAGE_TARGET) \
+	    $(FULL_SYSTEMIMAGE_DEPS) \
+	    $(INSTALLED_USERDATAIMAGE_TARGET) \
+	    $(INSTALLED_CACHEIMAGE_TARGET) \
+	    $(INSTALLED_VENDORIMAGE_TARGET) \
+	    $(INSTALLED_PRODUCTIMAGE_TARGET) \
+	    $(INSTALLED_PRODUCT_SERVICESIMAGE_TARGET) \
+	    $(INSTALLED_VBMETAIMAGE_TARGET) \
+	    $(INSTALLED_ODMIMAGE_TARGET) \
+	    $(INSTALLED_DTBOIMAGE_TARGET) \
+	    $(INTERNAL_SYSTEMOTHERIMAGE_FILES) \
+	    $(INSTALLED_ANDROID_INFO_TXT_TARGET) \
+	    $(INSTALLED_KERNEL_TARGET) \
+	    $(INSTALLED_2NDBOOTLOADER_TARGET) \
+	    $(BOARD_PREBUILT_DTBOIMAGE) \
+	    $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_SYSTEM_BASE_FS_PATH) \
+	    $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_VENDOR_BASE_FS_PATH) \
+	    $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_PRODUCT_BASE_FS_PATH) \
+	    $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_PRODUCT_SERVICES_BASE_FS_PATH) \
+	    $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_ODM_BASE_FS_PATH) \
+	    $(LPMAKE) \
+	    $(SELINUX_FC) \
+	    $(APKCERTS_FILE) \
+	    $(SOONG_ZIP) \
+	    $(HOST_OUT_EXECUTABLES)/fs_config \
+	    $(HOST_OUT_EXECUTABLES)/imgdiff \
+	    $(HOST_OUT_EXECUTABLES)/bsdiff \
+	    $(HOST_OUT_EXECUTABLES)/care_map_generator \
+	    $(BUILD_IMAGE_SRCS) \
+	    $(BUILT_ASSEMBLED_SYSTEM_MANIFEST) \
+	    $(BUILT_ASSEMBLED_VENDOR_MANIFEST) \
+	    $(BUILT_SYSTEM_MATRIX) \
+	    $(BUILT_VENDOR_MATRIX) \
+	    | $(ACP)
 	@echo "Package target files: $@"
 	$(call create-system-vendor-symlink)
 	$(call create-system-product-symlink)
@@ -3345,7 +3380,7 @@
 	@# Components of the recovery image
 	$(hide) mkdir -p $(zip_root)/$(PRIVATE_RECOVERY_OUT)
 	$(hide) $(call package_files-copy-root, \
-		$(TARGET_RECOVERY_ROOT_OUT),$(zip_root)/$(PRIVATE_RECOVERY_OUT)/RAMDISK)
+	    $(TARGET_RECOVERY_ROOT_OUT),$(zip_root)/$(PRIVATE_RECOVERY_OUT)/RAMDISK)
 ifdef INSTALLED_KERNEL_TARGET
 	$(hide) cp $(INSTALLED_KERNEL_TARGET) $(zip_root)/$(PRIVATE_RECOVERY_OUT)/kernel
 endif
@@ -3369,13 +3404,13 @@
 	$(hide) mkdir -p $(zip_root)/BOOT
 	$(hide) mkdir -p $(zip_root)/ROOT
 	$(hide) $(call package_files-copy-root, \
-		$(TARGET_ROOT_OUT),$(zip_root)/ROOT)
-ifneq ($(BOARD_BUILD_SYSTEM_ROOT_IMAGE),true)
-	$(hide) $(call package_files-copy-root, \
-		$(TARGET_RAMDISK_OUT),$(zip_root)/BOOT/RAMDISK)
-endif
+	    $(TARGET_ROOT_OUT),$(zip_root)/ROOT)
 	@# If we are using recovery as boot, this is already done when processing recovery.
 ifneq ($(BOARD_USES_RECOVERY_AS_BOOT),true)
+ifneq ($(BOARD_BUILD_SYSTEM_ROOT_IMAGE),true)
+	$(hide) $(call package_files-copy-root, \
+	    $(TARGET_RAMDISK_OUT),$(zip_root)/BOOT/RAMDISK)
+endif
 ifdef INSTALLED_KERNEL_TARGET
 	$(hide) cp $(INSTALLED_KERNEL_TARGET) $(zip_root)/BOOT/kernel
 endif
@@ -3397,34 +3432,34 @@
 	            cp $(t) $(zip_root)/RADIO/$(notdir $(t));)
 	@# Contents of the system image
 	$(hide) $(call package_files-copy-root, \
-		$(SYSTEMIMAGE_SOURCE_DIR),$(zip_root)/SYSTEM)
+	    $(SYSTEMIMAGE_SOURCE_DIR),$(zip_root)/SYSTEM)
 	@# Contents of the data image
 	$(hide) $(call package_files-copy-root, \
-		$(TARGET_OUT_DATA),$(zip_root)/DATA)
+	    $(TARGET_OUT_DATA),$(zip_root)/DATA)
 ifdef BOARD_VENDORIMAGE_FILE_SYSTEM_TYPE
 	@# Contents of the vendor image
 	$(hide) $(call package_files-copy-root, \
-		$(TARGET_OUT_VENDOR),$(zip_root)/VENDOR)
+	    $(TARGET_OUT_VENDOR),$(zip_root)/VENDOR)
 endif
 ifdef BOARD_PRODUCTIMAGE_FILE_SYSTEM_TYPE
 	@# Contents of the product image
 	$(hide) $(call package_files-copy-root, \
-		$(TARGET_OUT_PRODUCT),$(zip_root)/PRODUCT)
+	    $(TARGET_OUT_PRODUCT),$(zip_root)/PRODUCT)
 endif
 ifdef BOARD_PRODUCT_SERVICESIMAGE_FILE_SYSTEM_TYPE
 	@# Contents of the product_services image
 	$(hide) $(call package_files-copy-root, \
-		$(TARGET_OUT_PRODUCT_SERVICES),$(zip_root)/PRODUCT_SERVICES)
+	    $(TARGET_OUT_PRODUCT_SERVICES),$(zip_root)/PRODUCT_SERVICES)
 endif
 ifdef BOARD_ODMIMAGE_FILE_SYSTEM_TYPE
 	@# Contents of the odm image
 	$(hide) $(call package_files-copy-root, \
-		$(TARGET_OUT_ODM),$(zip_root)/ODM)
+	    $(TARGET_OUT_ODM),$(zip_root)/ODM)
 endif
 ifdef INSTALLED_SYSTEMOTHERIMAGE_TARGET
 	@# Contents of the system_other image
 	$(hide) $(call package_files-copy-root, \
-		$(TARGET_OUT_SYSTEM_OTHER),$(zip_root)/SYSTEM_OTHER)
+	    $(TARGET_OUT_SYSTEM_OTHER),$(zip_root)/SYSTEM_OTHER)
 endif
 	@# Extra contents of the OTA package
 	$(hide) mkdir -p $(zip_root)/OTA
@@ -3654,13 +3689,24 @@
 ifdef BUILT_VENDOR_MATRIX
 	$(hide) cp $(BUILT_VENDOR_MATRIX) $(zip_root)/META/vendor_matrix.xml
 endif
+ifeq ($(PRODUCT_USE_DYNAMIC_PARTITIONS),true)
+	$(hide) echo "use_dynamic_partitions=true" >> $(zip_root)/META/misc_info.txt
+endif
+ifeq ($(PRODUCT_RETROFIT_DYNAMIC_PARTITIONS),true)
+	$(hide) echo "dynamic_partition_retrofit=true" >> $(zip_root)/META/misc_info.txt
+endif
 ifneq ($(BOARD_SUPER_PARTITION_SIZE),)
-	$(hide) echo "super_size=$(BOARD_SUPER_PARTITION_SIZE)" >> $(zip_root)/META/misc_info.txt
 	$(hide) echo "lpmake=$(notdir $(LPMAKE))" >> $(zip_root)/META/misc_info.txt
 	$(hide) echo -n "lpmake_args=" >> $(zip_root)/META/misc_info.txt
-	$(hide) echo $(call build-superimage-target-args,$(if $(filter true,$(AB_OTA_UPDATER)),_a,)) \
+	$(hide) echo $(call build-superimage-target-args,$(call super-slot-suffix)) \
 	    >> $(zip_root)/META/misc_info.txt
 endif
+ifneq ($(BOARD_SUPER_PARTITION_BLOCK_DEVICES),)
+	$(hide) echo "super_block_devices=$(BOARD_SUPER_PARTITION_BLOCK_DEVICES)" >> $(zip_root)/META/misc_info.txt
+endif
+ifneq ($(BOARD_SUPER_PARTITION_PARTITION_LIST),)
+	$(hide) echo "dynamic_partition_list=$(BOARD_SUPER_PARTITION_PARTITION_LIST)" >> $(zip_root)/META/misc_info.txt
+endif
 ifneq ($(BOARD_SUPER_PARTITION_GROUPS),)
 	$(hide) echo "super_partition_groups=$(BOARD_SUPER_PARTITION_GROUPS)" > $(zip_root)/META/dynamic_partitions_info.txt
 	$(foreach group,$(BOARD_SUPER_PARTITION_GROUPS), \
@@ -3697,6 +3743,19 @@
 # -----------------------------------------------------------------
 # OTA update package
 
+# $(1): output file
+# $(2): additional args
+define build-ota-package-target
+PATH=$(foreach p,$(INTERNAL_USERIMAGES_BINARY_PATHS),$(p):)$$PATH MKBOOTIMG=$(MKBOOTIMG) \
+   build/make/tools/releasetools/ota_from_target_files -v \
+   --block \
+   --extracted_input_target_files $(patsubst %.zip,%,$(BUILT_TARGET_FILES_PACKAGE)) \
+   -p $(HOST_OUT) \
+   $(if $(OEM_OTA_CONFIG), -o $(OEM_OTA_CONFIG)) \
+   $(2) \
+   $(BUILT_TARGET_FILES_PACKAGE) $(1)
+endef
+
 name := $(TARGET_PRODUCT)
 ifeq ($(TARGET_BUILD_TYPE),debug)
   name := $(name)_debug
@@ -3714,20 +3773,41 @@
 endif
 
 $(INTERNAL_OTA_PACKAGE_TARGET): $(BUILT_TARGET_FILES_PACKAGE) \
-		build/make/tools/releasetools/ota_from_target_files
+	    build/make/tools/releasetools/ota_from_target_files
 	@echo "Package OTA: $@"
-	$(hide) PATH=$(foreach p,$(INTERNAL_USERIMAGES_BINARY_PATHS),$(p):)$$PATH MKBOOTIMG=$(MKBOOTIMG) \
-	   build/make/tools/releasetools/ota_from_target_files -v \
-	   --block \
-	   --extracted_input_target_files $(patsubst %.zip,%,$(BUILT_TARGET_FILES_PACKAGE)) \
-	   -p $(HOST_OUT) \
-	   -k $(KEY_CERT_PAIR) \
-	   $(if $(OEM_OTA_CONFIG), -o $(OEM_OTA_CONFIG)) \
-	   $(BUILT_TARGET_FILES_PACKAGE) $@
+	$(call build-ota-package-target,$@,-k $(KEY_CERT_PAIR))
 
 .PHONY: otapackage
 otapackage: $(INTERNAL_OTA_PACKAGE_TARGET)
 
+ifeq ($(PRODUCT_RETROFIT_DYNAMIC_PARTITIONS),true)
+name := $(TARGET_PRODUCT)
+ifeq ($(TARGET_BUILD_TYPE),debug)
+  name := $(name)_debug
+endif
+name := $(name)-ota-retrofit-$(FILE_NAME_TAG)
+
+INTERNAL_OTA_RETROFIT_DYNAMIC_PARTITIONS_PACKAGE_TARGET := $(PRODUCT_OUT)/$(name).zip
+
+$(INTERNAL_OTA_RETROFIT_DYNAMIC_PARTITIONS_PACKAGE_TARGET): KEY_CERT_PAIR := $(DEFAULT_KEY_CERT_PAIR)
+
+ifeq ($(AB_OTA_UPDATER),true)
+$(INTERNAL_OTA_RETROFIT_DYNAMIC_PARTITIONS_PACKAGE_TARGET): $(BRILLO_UPDATE_PAYLOAD)
+else
+$(INTERNAL_OTA_RETROFIT_DYNAMIC_PARTITIONS_PACKAGE_TARGET): $(BROTLI)
+endif
+
+$(INTERNAL_OTA_RETROFIT_DYNAMIC_PARTITIONS_PACKAGE_TARGET): $(BUILT_TARGET_FILES_PACKAGE) \
+	    build/make/tools/releasetools/ota_from_target_files
+	@echo "Package OTA (retrofit dynamic partitions): $@"
+	$(call build-ota-package-target,$@,-k $(KEY_CERT_PAIR) --retrofit_dynamic_partitions)
+
+.PHONY: otardppackage
+
+otapackage otardppackage: $(INTERNAL_OTA_RETROFIT_DYNAMIC_PARTITIONS_PACKAGE_TARGET)
+
+endif # PRODUCT_RETROFIT_DYNAMIC_PARTITIONS
+
 endif    # build_ota_package
 
 # -----------------------------------------------------------------
@@ -3755,12 +3835,12 @@
 # For apps_only build we'll establish the dependency later in build/make/core/main.mk.
 ifndef TARGET_BUILD_APPS
 $(APPCOMPAT_ZIP): $(INSTALLED_SYSTEMIMAGE_TARGET) \
-		$(INSTALLED_RAMDISK_TARGET) \
-		$(INSTALLED_BOOTIMAGE_TARGET) \
-		$(INSTALLED_USERDATAIMAGE_TARGET) \
-		$(INSTALLED_VENDORIMAGE_TARGET) \
-		$(INSTALLED_PRODUCTIMAGE_TARGET) \
-		$(INSTALLED_PRODUCT_SERVICESIMAGE_TARGET)
+	    $(INSTALLED_RAMDISK_TARGET) \
+	    $(INSTALLED_BOOTIMAGE_TARGET) \
+	    $(INSTALLED_USERDATAIMAGE_TARGET) \
+	    $(INSTALLED_VENDORIMAGE_TARGET) \
+	    $(INSTALLED_PRODUCTIMAGE_TARGET) \
+	    $(INSTALLED_PRODUCT_SERVICESIMAGE_TARGET)
 endif
 $(APPCOMPAT_ZIP): PRIVATE_LIST_FILE := $(call intermediates-dir-for,PACKAGING,appcompat)/filelist
 $(APPCOMPAT_ZIP): $(SOONG_ZIP)
@@ -3785,14 +3865,14 @@
 # For apps_only build we'll establish the dependency later in build/make/core/main.mk.
 ifndef TARGET_BUILD_APPS
 $(SYMBOLS_ZIP): $(INSTALLED_SYSTEMIMAGE_TARGET) \
-		$(INSTALLED_RAMDISK_TARGET) \
-		$(INSTALLED_BOOTIMAGE_TARGET) \
-		$(INSTALLED_USERDATAIMAGE_TARGET) \
-		$(INSTALLED_VENDORIMAGE_TARGET) \
-		$(INSTALLED_PRODUCTIMAGE_TARGET) \
-		$(INSTALLED_PRODUCT_SERVICESIMAGE_TARGET) \
-		$(INSTALLED_ODMIMAGE_TARGET) \
-		$(updater_dep)
+	    $(INSTALLED_RAMDISK_TARGET) \
+	    $(INSTALLED_BOOTIMAGE_TARGET) \
+	    $(INSTALLED_USERDATAIMAGE_TARGET) \
+	    $(INSTALLED_VENDORIMAGE_TARGET) \
+	    $(INSTALLED_PRODUCTIMAGE_TARGET) \
+	    $(INSTALLED_PRODUCT_SERVICESIMAGE_TARGET) \
+	    $(INSTALLED_ODMIMAGE_TARGET) \
+	    $(updater_dep)
 endif
 $(SYMBOLS_ZIP): PRIVATE_LIST_FILE := $(call intermediates-dir-for,PACKAGING,symbols)/filelist
 $(SYMBOLS_ZIP): $(SOONG_ZIP)
@@ -3812,13 +3892,13 @@
 COVERAGE_ZIP := $(PRODUCT_OUT)/$(name).zip
 ifndef TARGET_BUILD_APPS
 $(COVERAGE_ZIP): $(INSTALLED_SYSTEMIMAGE_TARGET) \
-		$(INSTALLED_RAMDISK_TARGET) \
-		$(INSTALLED_BOOTIMAGE_TARGET) \
-		$(INSTALLED_USERDATAIMAGE_TARGET) \
-		$(INSTALLED_VENDORIMAGE_TARGET) \
-		$(INSTALLED_PRODUCTIMAGE_TARGET) \
-		$(INSTALLED_PRODUCT_SERVICESIMAGE_TARGET) \
-		$(INSTALLED_ODMIMAGE_TARGET)
+	    $(INSTALLED_RAMDISK_TARGET) \
+	    $(INSTALLED_BOOTIMAGE_TARGET) \
+	    $(INSTALLED_USERDATAIMAGE_TARGET) \
+	    $(INSTALLED_VENDORIMAGE_TARGET) \
+	    $(INSTALLED_PRODUCTIMAGE_TARGET) \
+	    $(INSTALLED_PRODUCT_SERVICESIMAGE_TARGET) \
+	    $(INSTALLED_ODMIMAGE_TARGET)
 endif
 $(COVERAGE_ZIP): PRIVATE_LIST_FILE := $(call intermediates-dir-for,PACKAGING,coverage)/filelist
 $(COVERAGE_ZIP): $(SOONG_ZIP)
@@ -3845,10 +3925,10 @@
 	$(hide) mkdir -p $(dir $@)
 	$(hide) apps_to_zip=`find $(TARGET_OUT_APPS) $(TARGET_OUT_APPS_PRIVILEGED) -mindepth 2 -maxdepth 3 -name "*.apk"`; \
 	if [ -z "$$apps_to_zip" ]; then \
-		echo "No apps to zip up. Generating empty apps archive." ; \
-		a=$$(mktemp /tmp/XXXXXXX) && touch $$a && zip $@ $$a && zip -d $@ $$a; \
+	    echo "No apps to zip up. Generating empty apps archive." ; \
+	    a=$$(mktemp /tmp/XXXXXXX) && touch $$a && zip $@ $$a && zip -d $@ $$a; \
 	else \
-		zip -qjX $@ $$apps_to_zip; \
+	    zip -qjX $@ $$apps_to_zip; \
 	fi
 
 ifeq (true,$(EMMA_INSTRUMENT))
@@ -3862,7 +3942,7 @@
 $(JACOCO_REPORT_CLASSES_ALL) :
 	@echo "Collecting uninstrumented classes"
 	$(hide) find $(TARGET_COMMON_OUT_ROOT) $(HOST_COMMON_OUT_ROOT) -name "jacoco-report-classes.jar" | \
-		zip -@ -0 -q -X $@
+	    zip -@ -0 -q -X $@
 # Meaning of these options:
 # -@ scan stdin for file paths to add to the zip
 # -0 don't do any compression
@@ -3882,15 +3962,15 @@
 $(PROGUARD_DICT_ZIP) :
 	@echo "Packaging Proguard obfuscation dictionary files."
 	$(hide) dict_files=`find $(TARGET_OUT_COMMON_INTERMEDIATES)/APPS -name proguard_dictionary`; \
-		if [ -n "$$dict_files" ]; then \
-		  unobfuscated_jars=$${dict_files//proguard_dictionary/classes.jar}; \
-		  zip -qX $@ $$dict_files $$unobfuscated_jars; \
-		else \
-		  touch $(dir $@)/zipdummy; \
-		  (cd $(dir $@) && zip -q $(notdir $@) zipdummy); \
-		  zip -qd $@ zipdummy; \
-		  rm $(dir $@)/zipdummy; \
-		fi
+	    if [ -n "$$dict_files" ]; then \
+	      unobfuscated_jars=$${dict_files//proguard_dictionary/classes.jar}; \
+	      zip -qX $@ $$dict_files $$unobfuscated_jars; \
+	    else \
+	      touch $(dir $@)/zipdummy; \
+	      (cd $(dir $@) && zip -q $(notdir $@) zipdummy); \
+	      zip -qd $@ zipdummy; \
+	      rm $(dir $@)/zipdummy; \
+	    fi
 
 endif # TARGET_BUILD_APPS
 
@@ -4091,29 +4171,29 @@
 	if [ $$FAIL ]; then exit 1; fi
 	$(hide) echo $(notdir $(SDK_FONT_DEPS)) | tr " " "\n"  > $(SDK_FONT_TEMP)/fontsInSdk.txt
 	$(hide) ( \
-		ATREE_STRIP="$(HOST_STRIP) -x" \
-		$(HOST_OUT_EXECUTABLES)/atree \
-		$(addprefix -f ,$(PRIVATE_INPUT_FILES)) \
-			-m $(PRIVATE_DEP_FILE) \
-			-I . \
-			-I $(PRODUCT_OUT) \
-			-I $(HOST_OUT) \
-			-I $(TARGET_COMMON_OUT_ROOT) \
-			-v "PLATFORM_NAME=android-$(PLATFORM_VERSION)" \
-			-v "OUT_DIR=$(OUT_DIR)" \
-			-v "HOST_OUT=$(HOST_OUT)" \
-			-v "TARGET_ARCH=$(TARGET_ARCH)" \
-			-v "TARGET_CPU_ABI=$(TARGET_CPU_ABI)" \
-			-v "DLL_EXTENSION=$(HOST_SHLIB_SUFFIX)" \
-			-v "FONT_OUT=$(SDK_FONT_TEMP)" \
-			-o $(PRIVATE_DIR) && \
-		cp -f $(target_notice_file_txt) \
-				$(PRIVATE_DIR)/system-images/android-$(PLATFORM_VERSION)/$(TARGET_CPU_ABI)/NOTICE.txt && \
-		cp -f $(tools_notice_file_txt) $(PRIVATE_DIR)/platform-tools/NOTICE.txt && \
-		HOST_OUT_EXECUTABLES=$(HOST_OUT_EXECUTABLES) HOST_OS=$(HOST_OS) \
-			development/build/tools/sdk_clean.sh $(PRIVATE_DIR) && \
-		chmod -R ug+rwX $(PRIVATE_DIR) && \
-		cd $(dir $@) && zip -rqX $(notdir $@) $(PRIVATE_NAME) \
+	    ATREE_STRIP="$(HOST_STRIP) -x" \
+	    $(HOST_OUT_EXECUTABLES)/atree \
+	    $(addprefix -f ,$(PRIVATE_INPUT_FILES)) \
+	        -m $(PRIVATE_DEP_FILE) \
+	        -I . \
+	        -I $(PRODUCT_OUT) \
+	        -I $(HOST_OUT) \
+	        -I $(TARGET_COMMON_OUT_ROOT) \
+	        -v "PLATFORM_NAME=android-$(PLATFORM_VERSION)" \
+	        -v "OUT_DIR=$(OUT_DIR)" \
+	        -v "HOST_OUT=$(HOST_OUT)" \
+	        -v "TARGET_ARCH=$(TARGET_ARCH)" \
+	        -v "TARGET_CPU_ABI=$(TARGET_CPU_ABI)" \
+	        -v "DLL_EXTENSION=$(HOST_SHLIB_SUFFIX)" \
+	        -v "FONT_OUT=$(SDK_FONT_TEMP)" \
+	        -o $(PRIVATE_DIR) && \
+	    cp -f $(target_notice_file_txt) \
+	            $(PRIVATE_DIR)/system-images/android-$(PLATFORM_VERSION)/$(TARGET_CPU_ABI)/NOTICE.txt && \
+	    cp -f $(tools_notice_file_txt) $(PRIVATE_DIR)/platform-tools/NOTICE.txt && \
+	    HOST_OUT_EXECUTABLES=$(HOST_OUT_EXECUTABLES) HOST_OS=$(HOST_OS) \
+	        development/build/tools/sdk_clean.sh $(PRIVATE_DIR) && \
+	    chmod -R ug+rwX $(PRIVATE_DIR) && \
+	    cd $(dir $@) && zip -rqX $(notdir $@) $(PRIVATE_NAME) \
 	) || ( rm -rf $(PRIVATE_DIR) $@ && exit 44 )
 
 
diff --git a/core/aux_toolchain.mk b/core/aux_toolchain.mk
index de0b139..c710228 100644
--- a/core/aux_toolchain.mk
+++ b/core/aux_toolchain.mk
@@ -50,4 +50,3 @@
 LOCAL_SYSTEM_SHARED_LIBRARIES :=
 LOCAL_CXX_STL := none
 LOCAL_NO_PIC := true
-LOCAL_NO_LIBCOMPILER_RT := true
diff --git a/core/base_rules.mk b/core/base_rules.mk
index 9c5c69d..cb9c35a 100644
--- a/core/base_rules.mk
+++ b/core/base_rules.mk
@@ -277,14 +277,16 @@
 generated_sources_dir := $(call local-generated-sources-dir)
 
 ifneq ($(LOCAL_OVERRIDES_MODULES),)
-  ifeq ($(LOCAL_MODULE_CLASS),EXECUTABLES)
-    ifndef LOCAL_IS_HOST_MODULE
+  ifndef LOCAL_IS_HOST_MODULE
+    ifeq ($(LOCAL_MODULE_CLASS),EXECUTABLES)
       EXECUTABLES.$(LOCAL_MODULE).OVERRIDES := $(strip $(LOCAL_OVERRIDES_MODULES))
+    else ifeq ($(LOCAL_MODULE_CLASS),SHARED_LIBRARIES)
+      SHARED_LIBRARIES.$(LOCAL_MODULE).OVERRIDES := $(strip $(LOCAL_OVERRIDES_MODULES))
     else
-      $(call pretty-error,host modules cannot use LOCAL_OVERRIDES_MODULES)
+      $(call pretty-error,LOCAL_MODULE_CLASS := $(LOCAL_MODULE_CLASS) cannot use LOCAL_OVERRIDES_MODULES)
     endif
   else
-      $(call pretty-error,LOCAL_MODULE_CLASS := $(LOCAL_MODULE_CLASS) cannot use LOCAL_OVERRIDES_MODULES)
+    $(call pretty-error,host modules cannot use LOCAL_OVERRIDES_MODULES)
   endif
 endif
 
diff --git a/core/binary.mk b/core/binary.mk
index 07fb48a..427f689 100644
--- a/core/binary.mk
+++ b/core/binary.mk
@@ -73,6 +73,32 @@
   my_native_coverage := false
 endif
 
+ifeq ($(strip $(ENABLE_XOM)),true)
+  ifndef LOCAL_IS_HOST_MODULE
+    my_xom := true
+    # Disable XOM in excluded paths.
+    combined_xom_exclude_paths := $(XOM_EXCLUDE_PATHS) \
+                                  $(PRODUCT_XOM_EXCLUDE_PATHS)
+    ifneq ($(strip $(foreach dir,$(subst $(comma),$(space),$(combined_xom_exclude_paths)),\
+           $(filter $(dir)%,$(LOCAL_PATH)))),)
+      my_xom := false
+    endif
+
+    # Allow LOCAL_XOM to override the above
+    ifdef LOCAL_XOM
+      my_xom := $(LOCAL_XOM)
+    endif
+
+    ifeq ($(strip $(my_xom)),true)
+      ifeq (arm64,$(TARGET_$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH))
+        ifeq ($(my_use_clang_lld),true)
+          my_ldflags += -Wl,-execute-only
+        endif
+      endif
+    endif
+  endif
+endif
+
 my_allow_undefined_symbols := $(strip $(LOCAL_ALLOW_UNDEFINED_SYMBOLS))
 ifdef SANITIZE_HOST
 ifdef LOCAL_IS_HOST_MODULE
@@ -201,7 +227,6 @@
       $(my_ndk_source_root)/cxx-stl/llvm-libc++/include
     my_ndk_stl_include_path += \
       $(my_ndk_source_root)/cxx-stl/llvm-libc++abi/include
-    my_ndk_stl_include_path += $(my_ndk_source_root)/android/support/include
 
     my_libcxx_libdir := \
       $(my_ndk_source_root)/cxx-stl/llvm-libc++/libs/$(my_cpu_variant)
@@ -214,7 +239,13 @@
       my_ndk_stl_shared_lib_fullpath := $(my_libcxx_libdir)/libc++_shared.so
     endif
 
-    my_ndk_stl_static_lib += $(my_libcxx_libdir)/libandroid_support.a
+    ifneq ($(my_ndk_api),current)
+      ifeq ($(call math_lt,$(my_ndk_api),21),true)
+        my_ndk_stl_include_path += $(my_ndk_source_root)/android/support/include
+        my_ndk_stl_static_lib += $(my_libcxx_libdir)/libandroid_support.a
+      endif
+    endif
+
     ifneq (,$(filter armeabi armeabi-v7a,$(my_cpu_variant)))
       my_ndk_stl_static_lib += $(my_libcxx_libdir)/libunwind.a
     endif
@@ -396,13 +427,6 @@
 
 include $(BUILD_SYSTEM)/config_sanitizers.mk
 
-ifneq ($(LOCAL_NO_LIBCOMPILER_RT),true)
-# Add in libcompiler_rt for all regular device builds
-ifeq (,$(WITHOUT_LIBCOMPILER_RT))
-  my_static_libraries += $(COMPILER_RT_CONFIG_EXTRA_STATIC_LIBRARIES)
-endif
-endif
-
 # Statically link libwinpthread when cross compiling win32.
 ifeq ($($(my_prefix)OS),windows)
   my_static_libraries += libwinpthread
@@ -1539,7 +1563,7 @@
 ifeq ($(ONE_SHOT_MAKEFILE),)
 installed_static_library_notice_file_targets := \
     $(foreach lib,$(my_static_libraries) $(my_whole_static_libraries), \
-      NOTICE-$(if $(LOCAL_IS_HOST_MODULE),HOST,TARGET)-STATIC_LIBRARIES-$(lib))
+      NOTICE-$(if $(LOCAL_IS_HOST_MODULE),HOST$(if $(my_host_cross),_CROSS,),TARGET)-STATIC_LIBRARIES-$(lib))
 else
 installed_static_library_notice_file_targets :=
 endif
diff --git a/core/clang/HOST_CROSS_x86.mk b/core/clang/HOST_CROSS_x86.mk
index ffd7811..7581353 100644
--- a/core/clang/HOST_CROSS_x86.mk
+++ b/core/clang/HOST_CROSS_x86.mk
@@ -1 +1,2 @@
 $(clang_2nd_arch_prefix)HOST_CROSS_LIBPROFILE_RT := $(LLVM_RTLIB_PATH)/libclang_rt.profile-i386.a
+$(clang_2nd_arch_prefix)HOST_CROSS_LIBCRT_BUILTINS := $(LLVM_RTLIB_PATH)/libclang_rt.bulitins-i386.a
diff --git a/core/clang/HOST_CROSS_x86_64.mk b/core/clang/HOST_CROSS_x86_64.mk
index f921a1c..9a971c7 100644
--- a/core/clang/HOST_CROSS_x86_64.mk
+++ b/core/clang/HOST_CROSS_x86_64.mk
@@ -1 +1,2 @@
 $(clang_2nd_arch_prefix)HOST_CROSS_LIBPROFILE_RT := $(LLVM_RTLIB_PATH)/libclang_rt.profile-x86_64.a
+$(clang_2nd_arch_prefix)HOST_CROSS_LIBCRT_BUILTINS := $(LLVM_RTLIB_PATH)/libclang_rt.builtins-x86_64.a
diff --git a/core/clang/HOST_x86.mk b/core/clang/HOST_x86.mk
index 2803517..2e0865b 100644
--- a/core/clang/HOST_x86.mk
+++ b/core/clang/HOST_x86.mk
@@ -1 +1,2 @@
 $(clang_2nd_arch_prefix)HOST_LIBPROFILE_RT := $(LLVM_RTLIB_PATH)/libclang_rt.profile-i386.a
+$(clang_2nd_arch_prefix)HOST_LIBCRT_BUILTINS := $(LLVM_RTLIB_PATH)/libclang_rt.builtins-i386.a
diff --git a/core/clang/HOST_x86_64.mk b/core/clang/HOST_x86_64.mk
index 4fdffd8..3fd0541 100644
--- a/core/clang/HOST_x86_64.mk
+++ b/core/clang/HOST_x86_64.mk
@@ -1 +1,2 @@
 HOST_LIBPROFILE_RT := $(LLVM_RTLIB_PATH)/libclang_rt.profile-x86_64.a
+HOST_LIBCRT_BUILTINS := $(LLVM_RTLIB_PATH)/libclang_rt.builtins-x86_64.a
diff --git a/core/clang/TARGET_arm.mk b/core/clang/TARGET_arm.mk
index 9c1a836..6140d7c 100644
--- a/core/clang/TARGET_arm.mk
+++ b/core/clang/TARGET_arm.mk
@@ -3,6 +3,7 @@
 $(clang_2nd_arch_prefix)RS_COMPAT_TRIPLE := armv7-none-linux-gnueabi
 
 $(clang_2nd_arch_prefix)TARGET_LIBPROFILE_RT := $(LLVM_RTLIB_PATH)/libclang_rt.profile-arm-android.a
+$(clang_2nd_arch_prefix)TARGET_LIBCRT_BUILTINS := $(LLVM_RTLIB_PATH)/libclang_rt.builtins-arm-android.a
 
 # Address sanitizer clang config
 $(clang_2nd_arch_prefix)ADDRESS_SANITIZER_LINKER := /system/bin/linker_asan
diff --git a/core/clang/TARGET_arm64.mk b/core/clang/TARGET_arm64.mk
index 9a67b6b..9fe5530 100644
--- a/core/clang/TARGET_arm64.mk
+++ b/core/clang/TARGET_arm64.mk
@@ -3,6 +3,7 @@
 RS_COMPAT_TRIPLE := aarch64-linux-android
 
 TARGET_LIBPROFILE_RT := $(LLVM_RTLIB_PATH)/libclang_rt.profile-aarch64-android.a
+TARGET_LIBCRT_BUILTINS := $(LLVM_RTLIB_PATH)/libclang_rt.builtins-aarch64-android.a
 
 # Address sanitizer clang config
 ADDRESS_SANITIZER_LINKER := /system/bin/linker_asan64
diff --git a/core/clang/TARGET_x86.mk b/core/clang/TARGET_x86.mk
index 1b9c78c..5e2d57e 100644
--- a/core/clang/TARGET_x86.mk
+++ b/core/clang/TARGET_x86.mk
@@ -3,6 +3,7 @@
 $(clang_2nd_arch_prefix)RS_COMPAT_TRIPLE := i686-linux-android
 
 $(clang_2nd_arch_prefix)TARGET_LIBPROFILE_RT := $(LLVM_RTLIB_PATH)/libclang_rt.profile-i686-android.a
+$(clang_2nd_arch_prefix)TARGET_LIBCRT_BUILTINS := $(LLVM_RTLIB_PATH)/libclang_rt.builtins-i686-android.a
 
 # Address sanitizer clang config
 $(clang_2nd_arch_prefix)ADDRESS_SANITIZER_LINKER := /system/bin/linker_asan
diff --git a/core/clang/TARGET_x86_64.mk b/core/clang/TARGET_x86_64.mk
index 3161f84..86b3798 100644
--- a/core/clang/TARGET_x86_64.mk
+++ b/core/clang/TARGET_x86_64.mk
@@ -3,6 +3,7 @@
 RS_COMPAT_TRIPLE := x86_64-linux-android
 
 TARGET_LIBPROFILE_RT := $(LLVM_RTLIB_PATH)/libclang_rt.profile-x86_64-android.a
+TARGET_LIBCRT_BUILTINS := $(LLVM_RTLIB_PATH)/libclang_rt.builtins-x86_64-android.a
 
 # Address sanitizer clang config
 ADDRESS_SANITIZER_LINKER := /system/bin/linker_asan64
diff --git a/core/clang/config.mk b/core/clang/config.mk
index 63582c2..ca3a1fa 100644
--- a/core/clang/config.mk
+++ b/core/clang/config.mk
@@ -1,6 +1,6 @@
 ## Clang configurations.
 
-LLVM_RTLIB_PATH := $(LLVM_PREBUILTS_PATH)/../lib64/clang/$(LLVM_RELEASE_VERSION)/lib/linux/
+LLVM_RTLIB_PATH := $(LLVM_PREBUILTS_BASE)/linux-x86/$(LLVM_PREBUILTS_VERSION)/lib64/clang/$(LLVM_RELEASE_VERSION)/lib/linux/
 
 define convert-to-clang-flags
 $(strip $(filter-out $(CLANG_CONFIG_UNKNOWN_CFLAGS),$(1)))
@@ -61,8 +61,4 @@
 include $(BUILD_SYSTEM)/clang/TARGET_$(TARGET_2ND_ARCH).mk
 endif
 
-# This allows us to use the superset of functionality that compiler-rt
-# provides to Clang (for supporting features like -ftrapv).
-COMPILER_RT_CONFIG_EXTRA_STATIC_LIBRARIES := libcompiler_rt-extras
-
 include $(BUILD_SYSTEM)/clang/tidy.mk
diff --git a/core/clear_vars.mk b/core/clear_vars.mk
index 34a1db8..0417e13 100644
--- a/core/clear_vars.mk
+++ b/core/clear_vars.mk
@@ -184,8 +184,8 @@
 LOCAL_NO_CRT:=
 LOCAL_NO_DEFAULT_COMPILER_FLAGS:=
 LOCAL_NO_FPIE :=
-LOCAL_NO_LIBCOMPILER_RT:=
 LOCAL_NO_LIBGCC:=
+LOCAL_NO_LIBCRT_BUILTINS:=
 LOCAL_NO_NOTICE_FILE:=
 LOCAL_NO_PIC:=
 LOCAL_NOSANITIZE:=
@@ -302,6 +302,7 @@
 LOCAL_VTS_MODE:=
 LOCAL_WARNINGS_ENABLE:=
 LOCAL_WHOLE_STATIC_LIBRARIES:=
+LOCAL_XOM:=
 LOCAL_YACCFLAGS:=
 # TODO: deprecate, it does nothing
 OVERRIDE_BUILT_MODULE_PATH:=
diff --git a/core/combo/TARGET_linux-arm.mk b/core/combo/TARGET_linux-arm.mk
index ffb6021..4503062 100644
--- a/core/combo/TARGET_linux-arm.mk
+++ b/core/combo/TARGET_linux-arm.mk
@@ -36,9 +36,21 @@
 KNOWN_ARMv8_CORES := cortex-a53 cortex-a53.a57 cortex-a55 cortex-a73 cortex-a75 cortex-a76
 KNOWN_ARMv8_CORES += kryo denver64 exynos-m1 exynos-m2
 
+KNOWN_ARMv82a_CORES := cortex-a55 cortex-a75
+
+# Check for cores that implement armv8-2a ISAs.
+ifneq (,$(filter $(TARGET_$(combo_2nd_arch_prefix)CPU_VARIANT), $(KNOWN_ARMv82a_CORES)))
+  ifneq ($(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT),armv8-2a)
+    $(warning $(TARGET_$(combo_2nd_arch_prefix)CPU_VARIANT) is armv8-2a.)
+    ifneq (,$(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT))
+      $(warning TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT, $(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT), ignored! Use armv8-2a instead.)
+    endif
+    # Overwrite TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT
+    TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT := armv8-2a
+  endif
 # Many devices (incorrectly) use armv7-a-neon as the 2nd architecture variant
 # for cores that implement armv8-a ISAs. The following sets it to armv8-a.
-ifneq (,$(filter $(TARGET_$(combo_2nd_arch_prefix)CPU_VARIANT), $(KNOWN_ARMv8_CORES)))
+else ifneq (,$(filter $(TARGET_$(combo_2nd_arch_prefix)CPU_VARIANT), $(KNOWN_ARMv8_CORES)))
   ifneq ($(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT),armv8-a)
     $(warning $(TARGET_$(combo_2nd_arch_prefix)CPU_VARIANT) is armv8-a.)
     ifneq (,$(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT))
diff --git a/core/combo/arch/arm/armv8-2a.mk b/core/combo/arch/arm/armv8-2a.mk
new file mode 100644
index 0000000..c1d8182
--- /dev/null
+++ b/core/combo/arch/arm/armv8-2a.mk
@@ -0,0 +1,9 @@
+# Configuration for Linux on ARM.
+# Generating binaries for the ARMv8-2a architecture
+#
+# Many libraries are not aware of armv8-2a, and AArch32 is (almost) a superset
+# of armv7-a-neon. So just let them think we are just like v7.
+ARCH_ARM_HAVE_ARMV7A            := true
+ARCH_ARM_HAVE_VFP               := true
+ARCH_ARM_HAVE_VFP_D32           := true
+ARCH_ARM_HAVE_NEON              := true
diff --git a/core/config.mk b/core/config.mk
index c1ea5a8..99feeb2 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -923,12 +923,7 @@
     PLATFORM_SEPOLICY_VERSION \
     TOT_SEPOLICY_VERSION \
 
-# If true, kernel configuration requirements are present in OTA package (and will be enforced
-# during OTA). Otherwise, kernel configuration requirements are enforced in VTS.
-# Devices that checks the running kernel (instead of the kernel in OTA package) should not
-# set this variable to prevent OTA failures.
-ifndef PRODUCT_OTA_ENFORCE_VINTF_KERNEL_REQUIREMENTS
-  PRODUCT_OTA_ENFORCE_VINTF_KERNEL_REQUIREMENTS :=
+ifeq ($(PRODUCT_OTA_ENFORCE_VINTF_KERNEL_REQUIREMENTS),)
   ifdef PRODUCT_SHIPPING_API_LEVEL
     ifeq (true,$(call math_gt_or_eq,$(PRODUCT_SHIPPING_API_LEVEL),29))
       PRODUCT_OTA_ENFORCE_VINTF_KERNEL_REQUIREMENTS := true
@@ -937,17 +932,28 @@
 endif
 .KATI_READONLY := PRODUCT_OTA_ENFORCE_VINTF_KERNEL_REQUIREMENTS
 
-ifeq ($(PRODUCT_USE_LOGICAL_PARTITIONS),true)
+ifeq ($(PRODUCT_RETROFIT_DYNAMIC_PARTITIONS),true)
+  ifneq ($(PRODUCT_USE_DYNAMIC_PARTITIONS),true)
+    $(error PRODUCT_USE_DYNAMIC_PARTITIONS must be true when PRODUCT_RETROFIT_DYNAMIC_PARTITIONS \
+        is set)
+  endif
+  ifdef PRODUCT_SHIPPING_API_LEVEL
+    ifeq (true,$(call math_gt_or_eq,$(PRODUCT_SHIPPING_API_LEVEL),29))
+      $(error Devices with shipping API level $(PRODUCT_SHIPPING_API_LEVEL) must not set \
+          PRODUCT_RETROFIT_DYNAMIC_PARTITIONS)
+    endif
+  endif
+endif
+
+ifeq ($(PRODUCT_USE_DYNAMIC_PARTITIONS),true)
     requirements := \
         PRODUCT_USE_DYNAMIC_PARTITION_SIZE \
         PRODUCT_BUILD_SUPER_PARTITION \
 
     $(foreach req,$(requirements),$(if $(filter false,$($(req))),\
-        $(error PRODUCT_USE_LOGICAL_PARTITIONS requires $(req) to be true)))
+        $(error PRODUCT_USE_DYNAMIC_PARTITIONS requires $(req) to be true)))
 
     requirements :=
-
-  BOARD_KERNEL_CMDLINE += androidboot.logical_partitions=1
 endif
 
 ifeq ($(PRODUCT_USE_DYNAMIC_PARTITION_SIZE),true)
@@ -1000,6 +1006,7 @@
 #     - BOARD_{GROUP}_PARTITION_PARTITION_LIST: the list of partitions that belongs to this group.
 #       If empty, no partitions belong to this group, and the sum of sizes is effectively 0.
 $(foreach group,$(call to-upper,$(BOARD_SUPER_PARTITION_GROUPS)), \
+    $(eval BOARD_$(group)_SIZE := $(strip $(BOARD_$(group)_SIZE))) \
     $(if $(BOARD_$(group)_SIZE),,$(error BOARD_$(group)_SIZE must not be empty)) \
     $(eval .KATI_READONLY := BOARD_$(group)_SIZE) \
     $(eval BOARD_$(group)_PARTITION_LIST ?=) \
@@ -1007,7 +1014,7 @@
 )
 
 # BOARD_*_PARTITION_LIST: a list of the following tokens
-valid_super_partition_list := system vendor product product_services
+valid_super_partition_list := system vendor product product_services odm
 $(foreach group,$(call to-upper,$(BOARD_SUPER_PARTITION_GROUPS)), \
     $(if $(filter-out $(valid_super_partition_list),$(BOARD_$(group)_PARTITION_LIST)), \
         $(error BOARD_$(group)_PARTITION_LIST contains invalid partition name \
@@ -1026,6 +1033,54 @@
         $(BOARD_$(group)_PARTITION_LIST))
 .KATI_READONLY := BOARD_SUPER_PARTITION_PARTITION_LIST
 
+ifneq ($(BOARD_SUPER_PARTITION_SIZE),)
+ifeq ($(PRODUCT_RETROFIT_DYNAMIC_PARTITIONS),true)
+
+# The metadata device must be specified manually for retrofitting.
+ifeq ($(BOARD_SUPER_PARTITION_METADATA_DEVICE),)
+$(error Must specify BOARD_SUPER_PARTITION_METADATA_DEVICE if PRODUCT_RETROFIT_DYNAMIC_PARTITIONS=true.)
+endif
+
+# The super partition block device list must be specified manually for retrofitting.
+ifeq ($(BOARD_SUPER_PARTITION_BLOCK_DEVICES),)
+$(error Must specify BOARD_SUPER_PARTITION_BLOCK_DEVICES if PRODUCT_RETROFIT_DYNAMIC_PARTITIONS=true.)
+endif
+
+# The metadata device must be included in the super partition block device list.
+ifeq (,$(filter $(BOARD_SUPER_PARTITION_METADATA_DEVICE),$(BOARD_SUPER_PARTITION_BLOCK_DEVICES)))
+$(error BOARD_SUPER_PARTITION_METADATA_DEVICE is not listed in BOARD_SUPER_PARTITION_BLOCK_DEVICES.)
+endif
+
+# The metadata device must be supplied to init via the kernel command-line.
+BOARD_KERNEL_CMDLINE += androidboot.super_partition=$(BOARD_SUPER_PARTITION_METADATA_DEVICE)
+
+else # PRODUCT_RETROFIT_DYNAMIC_PARTITIONS
+
+# 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
+
+# For normal devices, we populate BOARD_SUPER_PARTITION_BLOCK_DEVICES so the
+# build can handle both cases consistently.
+BOARD_SUPER_PARTITION_BLOCK_DEVICES := super
+BOARD_SUPER_PARTITION_METADATA_DEVICE := super
+BOARD_SUPER_PARTITION_SUPER_DEVICE_SIZE := $(BOARD_SUPER_PARTITION_SIZE)
+
+endif # PRODUCT_RETROFIT_DYNAMIC_PARTITIONS
+endif # BOARD_SUPER_PARTITION_SIZE
+.KATI_READONLY := BOARD_SUPER_PARTITION_BLOCK_DEVICES
+.KATI_READONLY := BOARD_SUPER_PARTITION_METADATA_DEVICE
+
+$(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))) \
+    $(eval .KATI_READONLY := BOARD_SUPER_PARTITION_$(device)_DEVICE_SIZE))
+
 endif # PRODUCT_BUILD_SUPER_PARTITION
 
 # ###############################################################
@@ -1147,10 +1202,7 @@
 
 INTERNAL_PLATFORM_HIDDENAPI_PUBLIC_LIST := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/hiddenapi-public-list.txt
 INTERNAL_PLATFORM_HIDDENAPI_PRIVATE_LIST := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/hiddenapi-private-list.txt
-INTERNAL_PLATFORM_HIDDENAPI_WHITELIST := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/hiddenapi-whitelist.txt
-INTERNAL_PLATFORM_HIDDENAPI_LIGHT_GREYLIST := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/hiddenapi-light-greylist.txt
-INTERNAL_PLATFORM_HIDDENAPI_DARK_GREYLIST := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/hiddenapi-dark-greylist.txt
-INTERNAL_PLATFORM_HIDDENAPI_BLACKLIST := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/hiddenapi-blacklist.txt
+INTERNAL_PLATFORM_HIDDENAPI_FLAGS := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/hiddenapi-flags.csv
 INTERNAL_PLATFORM_HIDDENAPI_GREYLIST_METADATA := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/hiddenapi-greylist.csv
 
 # Missing optional uses-libraries so that the platform doesn't create build rules that depend on
diff --git a/core/definitions.mk b/core/definitions.mk
index 0e959d6..50c26d3 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -797,13 +797,13 @@
 # $(1): path (and optionally line) information
 # $(2): message to print
 define echo-warning
-echo -e "$(ESC_BOLD)$(1): $(ESC_WARNING)warning:$(ESC_RESET)$(ESC_BOLD)" $(2) "$(ESC_RESET)" >&2
+echo -e "$(ESC_BOLD)$(1): $(ESC_WARNING)warning:$(ESC_RESET)$(ESC_BOLD)" '$(subst ','\'',$(2))'  "$(ESC_RESET)" >&2
 endef
 
 # $(1): path (and optionally line) information
 # $(2): message to print
 define echo-error
-echo -e "$(ESC_BOLD)$(1): $(ESC_ERROR)error:$(ESC_RESET)$(ESC_BOLD)" $(2) "$(ESC_RESET)" >&2
+echo -e "$(ESC_BOLD)$(1): $(ESC_ERROR)error:$(ESC_RESET)$(ESC_BOLD)" '$(subst ','\'',$(2))'  "$(ESC_RESET)" >&2
 endef
 
 ###########################################################
@@ -1693,6 +1693,7 @@
 	$(PRIVATE_ALL_STATIC_LIBRARIES) \
 	$(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \
 	$(if $(filter true,$(NATIVE_COVERAGE)),$(PRIVATE_TARGET_COVERAGE_LIB)) \
+	$(PRIVATE_TARGET_LIBCRT_BUILTINS) \
 	$(PRIVATE_TARGET_LIBATOMIC) \
 	$(PRIVATE_TARGET_LIBGCC) \
 	$(PRIVATE_TARGET_GLOBAL_LDFLAGS) \
@@ -1728,6 +1729,7 @@
 	$(PRIVATE_ALL_STATIC_LIBRARIES) \
 	$(if $(PRIVATE_GROUP_STATIC_LIBRARIES),-Wl$(comma)--end-group) \
 	$(if $(filter true,$(NATIVE_COVERAGE)),$(PRIVATE_TARGET_COVERAGE_LIB)) \
+	$(PRIVATE_TARGET_LIBCRT_BUILTINS) \
 	$(PRIVATE_TARGET_LIBATOMIC) \
 	$(PRIVATE_TARGET_LIBGCC) \
 	$(PRIVATE_TARGET_GLOBAL_LDFLAGS) \
@@ -1775,6 +1777,7 @@
 	$(if $(filter true,$(NATIVE_COVERAGE)),$(PRIVATE_TARGET_COVERAGE_LIB)) \
 	$(PRIVATE_TARGET_LIBATOMIC) \
 	$(filter %libcompiler_rt.a %libcompiler_rt.hwasan.a,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
+	$(PRIVATE_TARGET_LIBCRT_BUILTINS) \
 	$(PRIVATE_TARGET_LIBGCC) \
 	-Wl,--end-group \
 	$(PRIVATE_TARGET_CRTEND_O)
@@ -2371,10 +2374,7 @@
 endef
 appcompat-files = \
   art/tools/veridex/appcompat.sh \
-  $(INTERNAL_PLATFORM_HIDDENAPI_WHITELIST) \
-  $(INTERNAL_PLATFORM_HIDDENAPI_LIGHT_GREYLIST) \
-  $(INTERNAL_PLATFORM_HIDDENAPI_DARK_GREYLIST) \
-  $(INTERNAL_PLATFORM_HIDDENAPI_BLACKLIST) \
+  $(INTERNAL_PLATFORM_HIDDENAPI_FLAGS) \
   $(HOST_OUT_EXECUTABLES)/veridex \
   $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/core_dex_intermediates/classes.dex \
   $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/oahl_dex_intermediates/classes.dex
@@ -2668,17 +2668,13 @@
 # Java semantics of the result dex bytecode. Use at own risk.
 ifneq ($(UNSAFE_DISABLE_HIDDENAPI_FLAGS),true)
 define hiddenapi-copy-dex-files
-$(2): $(1) $(HIDDENAPI) $(INTERNAL_PLATFORM_HIDDENAPI_LIGHT_GREYLIST) \
-      $(INTERNAL_PLATFORM_HIDDENAPI_DARK_GREYLIST) $(INTERNAL_PLATFORM_HIDDENAPI_BLACKLIST)
+$(2): $(1) $(HIDDENAPI) $(INTERNAL_PLATFORM_HIDDENAPI_FLAGS)
 	@rm -rf $(dir $(2))
 	@mkdir -p $(dir $(2))
 	for INPUT_DEX in `find $(dir $(1)) -maxdepth 1 -name "classes*.dex" | sort`; do \
 	    echo "--input-dex=$$$${INPUT_DEX}"; \
 	    echo "--output-dex=$(dir $(2))/`basename $$$${INPUT_DEX}`"; \
-	done | xargs $(HIDDENAPI) encode \
-	    --light-greylist=$(INTERNAL_PLATFORM_HIDDENAPI_LIGHT_GREYLIST) \
-	    --dark-greylist=$(INTERNAL_PLATFORM_HIDDENAPI_DARK_GREYLIST) \
-	    --blacklist=$(INTERNAL_PLATFORM_HIDDENAPI_BLACKLIST)
+	done | xargs $(HIDDENAPI) encode --api-flags=$(INTERNAL_PLATFORM_HIDDENAPI_FLAGS)
 
 $(INTERNAL_PLATFORM_HIDDENAPI_PRIVATE_LIST): $(1)
 $(INTERNAL_PLATFORM_HIDDENAPI_PRIVATE_LIST): PRIVATE_DEX_INPUTS := $$(PRIVATE_DEX_INPUTS) $(1)
@@ -2694,27 +2690,20 @@
 endif  # UNSAFE_DISABLE_HIDDENAPI_FLAGS
 
 # Generate a greylist.txt from a classes.jar
-define hiddenapi-generate-greylist-txt
+define hiddenapi-generate-csv
 ifneq (,$(wildcard frameworks/base))
 # Only generate this target if we're in a tree with frameworks/base present.
-$(3): .KATI_IMPLICIT_OUTPUTS := $(2) $(4)
-# For now, write P & Q blacklist to single file until runtime support is finished
+$(2): $(1) $(CLASS2GREYLIST) $(INTERNAL_PLATFORM_HIDDENAPI_PUBLIC_LIST)
+	$(CLASS2GREYLIST) --public-api-list $(INTERNAL_PLATFORM_HIDDENAPI_PUBLIC_LIST) $(1) \
+	    --write-flags-csv $(2)
+
 $(3): $(1) $(CLASS2GREYLIST) $(INTERNAL_PLATFORM_HIDDENAPI_PUBLIC_LIST)
 	$(CLASS2GREYLIST) --public-api-list $(INTERNAL_PLATFORM_HIDDENAPI_PUBLIC_LIST) $(1) \
-	    --write-whitelist $(2) \
-	    --write-greylist none,28:$(3) \
-	    --write-greylist 26:$(4)
+	    --write-metadata-csv $(3)
 
-$(5): $(1) $(CLASS2GREYLIST) $(INTERNAL_PLATFORM_HIDDENAPI_PUBLIC_LIST)
-	$(CLASS2GREYLIST) --public-api-list $(INTERNAL_PLATFORM_HIDDENAPI_PUBLIC_LIST) $(1) \
-	    --write-metadata-csv $(5)
+$(INTERNAL_PLATFORM_HIDDENAPI_FLAGS): $(2)
+$(INTERNAL_PLATFORM_HIDDENAPI_FLAGS): PRIVATE_FLAGS_INPUTS := $$(PRIVATE_FLAGS_INPUTS) $(2)
 
-$(INTERNAL_PLATFORM_HIDDENAPI_WHITELIST): $(2) $(3) $(4)
-$(INTERNAL_PLATFORM_HIDDENAPI_WHITELIST): \
-    PRIVATE_WHITELIST_INPUTS := $$(PRIVATE_WHITELIST_INPUTS) $(2)
-$(INTERNAL_PLATFORM_HIDDENAPI_WHITELIST): \
-    PRIVATE_GREYLIST_INPUTS := $$(PRIVATE_GREYLIST_INPUTS) $(3)
-    PRIVATE_DARKGREYLIST_INPUTS := $$(PRIVATE_DARKGREYLIST_INPUTS) $(4)
 $(INTERNAL_PLATFORM_HIDDENAPI_GREYLIST_METADATA): $(5)
 $(INTERNAL_PLATFORM_HIDDENAPI_GREYLIST_METADATA): \
     PRIVATE_METADATA_INPUTS := $$(PRIVATE_METADATA_INPUTS) $(5)
@@ -2749,6 +2738,14 @@
 ###########################################################
 ## Commands to call R8
 ###########################################################
+
+# Use --debug flag for eng builds by default
+ifeq (eng,$(TARGET_BUILD_VARIANT))
+R8_DEBUG_MODE := --debug
+else
+R8_DEBUG_MODE :=
+endif
+
 define transform-jar-to-dex-r8
 @echo R8: $@
 $(hide) rm -f $(PRIVATE_PROGUARD_DICTIONARY)
@@ -2756,6 +2753,7 @@
     --min-api $(PRIVATE_MIN_SDK_VERSION) \
     --no-data-resources \
     --force-proguard-compatibility --output $(subst classes.dex,,$@) \
+    $(R8_DEBUG_MODE) \
     $(PRIVATE_PROGUARD_FLAGS) \
     $(addprefix -injars , $(PRIVATE_EXTRA_INPUT_JAR)) \
     $(PRIVATE_DX_FLAGS)
diff --git a/core/dex_preopt_libart.mk b/core/dex_preopt_libart.mk
index 698034c..1c9ef64 100644
--- a/core/dex_preopt_libart.mk
+++ b/core/dex_preopt_libart.mk
@@ -173,6 +173,9 @@
 # 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 $(2))
@@ -188,6 +191,7 @@
 source build/make/core/construct_context.sh "$(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} \
diff --git a/core/dex_preopt_libart_boot.mk b/core/dex_preopt_libart_boot.mk
index 14955f0..70a934c 100644
--- a/core/dex_preopt_libart_boot.mk
+++ b/core/dex_preopt_libart_boot.mk
@@ -86,6 +86,8 @@
 $($(my_2nd_arch_prefix)DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME): PRIVATE_BOOT_IMAGE_FLAGS := $(my_boot_image_flags)
 $($(my_2nd_arch_prefix)DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME): PRIVATE_2ND_ARCH_VAR_PREFIX := $(my_2nd_arch_prefix)
 # Use dex2oat debug version for better error reporting
+# Pass --avoid-storing-invocation to make the output deterministics between
+# different products that may have different paths on the command line.
 $($(my_2nd_arch_prefix)DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME) : $(LIBART_TARGET_BOOT_DEX_FILES) $(PRELOADED_CLASSES) $(DIRTY_IMAGE_OBJECTS) $(DEX2OAT_DEPENDENCY) $(my_out_boot_image_profile_location)
 	@echo "target dex2oat: $@"
 	@mkdir -p $(dir $@)
@@ -94,6 +96,7 @@
 	@rm -f $(dir $($(PRIVATE_2ND_ARCH_VAR_PREFIX)LIBART_TARGET_BOOT_OAT_UNSTRIPPED))/*.art
 	@rm -f $(dir $($(PRIVATE_2ND_ARCH_VAR_PREFIX)LIBART_TARGET_BOOT_OAT_UNSTRIPPED))/*.oat
 	$(hide) $(DEX2OAT_BOOT_IMAGE_LOG_TAGS) $(DEX2OAT) --runtime-arg -Xms$(DEX2OAT_IMAGE_XMS) \
+		--avoid-storing-invocation \
 		--runtime-arg -Xmx$(DEX2OAT_IMAGE_XMX) \
 		$(PRIVATE_BOOT_IMAGE_FLAGS) \
 		$(addprefix --dex-file=,$(LIBART_TARGET_BOOT_DEX_FILES)) \
diff --git a/core/executable_internal.mk b/core/executable_internal.mk
index 70b2ea8..c28c144 100644
--- a/core/executable_internal.mk
+++ b/core/executable_internal.mk
@@ -36,6 +36,11 @@
 endif
 
 # Define PRIVATE_ variables from global vars
+ifeq ($(LOCAL_NO_LIBCRT_BUILTINS),true)
+my_target_libcrt_builtins :=
+else
+my_target_libcrt_builtins := $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)LIBCRT_BUILTINS)
+endif
 ifeq ($(LOCAL_NO_LIBGCC),true)
 my_target_libgcc :=
 else
@@ -60,6 +65,7 @@
 my_target_crtbegin_static_o := $(wildcard $(my_ndk_sysroot_lib)/crtbegin_static.o)
 my_target_crtend_o := $(wildcard $(my_ndk_sysroot_lib)/crtend_android.o)
 endif
+$(linked_module): PRIVATE_TARGET_LIBCRT_BUILTINS := $(my_target_libcrt_builtins)
 $(linked_module): PRIVATE_TARGET_LIBGCC := $(my_target_libgcc)
 $(linked_module): PRIVATE_TARGET_LIBATOMIC := $(my_target_libatomic)
 $(linked_module): PRIVATE_TARGET_CRTBEGIN_DYNAMIC_O := $(my_target_crtbegin_dynamic_o)
@@ -68,11 +74,11 @@
 $(linked_module): PRIVATE_POST_LINK_CMD := $(LOCAL_POST_LINK_CMD)
 
 ifeq ($(LOCAL_FORCE_STATIC_EXECUTABLE),true)
-$(linked_module): $(my_target_crtbegin_static_o) $(all_objects) $(all_libraries) $(my_target_crtend_o) $(my_target_libgcc) $(my_target_libatomic)
+$(linked_module): $(my_target_crtbegin_static_o) $(all_objects) $(all_libraries) $(my_target_crtend_o) $(my_target_libcrt_builtins) $(my_target_libgcc) $(my_target_libatomic)
 	$(transform-o-to-static-executable)
 	$(PRIVATE_POST_LINK_CMD)
 else
-$(linked_module): $(my_target_crtbegin_dynamic_o) $(all_objects) $(all_libraries) $(my_target_crtend_o) $(my_target_libgcc) $(my_target_libatomic)
+$(linked_module): $(my_target_crtbegin_dynamic_o) $(all_objects) $(all_libraries) $(my_target_crtend_o) $(my_target_libcrt_builtins) $(my_target_libgcc) $(my_target_libatomic)
 	$(transform-o-to-executable)
 	$(PRIVATE_POST_LINK_CMD)
 endif
diff --git a/core/generate_enforce_rro.mk b/core/generate_enforce_rro.mk
index 62a8c8d..c88c779 100644
--- a/core/generate_enforce_rro.mk
+++ b/core/generate_enforce_rro.mk
@@ -27,4 +27,10 @@
 LOCAL_AAPT_FLAGS += --auto-add-overlay
 LOCAL_RESOURCE_DIR := $(enforce_rro_source_overlays)
 
+ifeq (framework-res__auto_generated_rro,$(enforce_rro_module))
+LOCAL_PRIVATE_PLATFORM_APIS := true
+else
+LOCAL_SDK_VERSION := current
+endif
+
 include $(BUILD_RRO_PACKAGE)
diff --git a/core/java.mk b/core/java.mk
index 30571b7..932a421 100644
--- a/core/java.mk
+++ b/core/java.mk
@@ -74,10 +74,8 @@
 built_dex_hiddenapi := $(intermediates.COMMON)/dex-hiddenapi/classes.dex
 full_classes_stubs_jar := $(intermediates.COMMON)/stubs.jar
 java_source_list_file := $(intermediates.COMMON)/java-source-list
-hiddenapi_whitelist_txt := $(intermediates.COMMON)/hiddenapi/whitelist.txt
-hiddenapi_greylist_txt := $(intermediates.COMMON)/hiddenapi/greylist.txt
-hiddenapi_darkgreylist_txt := $(intermediates.COMMON)/hiddenapi/darkgreylist.txt
-hiddenapi_greylist_metadata_csv := $(intermediates.COMMON)/hiddenapi/greylist.csv
+hiddenapi_flags_csv := $(intermediates.COMMON)/hiddenapi/flags.csv
+hiddenapi_metadata_csv := $(intermediates.COMMON)/hiddenapi/greylist.csv
 
 ifeq ($(LOCAL_MODULE_CLASS)$(LOCAL_SRC_FILES)$(LOCAL_STATIC_JAVA_LIBRARIES)$(LOCAL_SOURCE_FILES_ALL_GENERATED),APPS)
 # If this is an apk without any Java code (e.g. framework-res), we should skip compiling Java.
@@ -508,8 +506,8 @@
   # dex later on. The difference is academic currently, as we don't proguard any
   # bootclasspath code at the moment. If we were to do that, we should add keep
   # rules for all members with the @UnsupportedAppUsage annotation.
-  $(eval $(call hiddenapi-generate-greylist-txt, $(full_classes_pre_proguard_jar),$(hiddenapi_whitelist_txt),$(hiddenapi_greylist_txt),$(hiddenapi_darkgreylist_txt),$(hiddenapi_greylist_metadata_csv)))
-  LOCAL_INTERMEDIATE_TARGETS += $(hiddenapi_whitelist_txt) $(hiddenapi_greylist_txt) $(hiddenapi_darkgreylist_txt) $(hiddenapi_greylist_metadata_csv)
+  $(eval $(call hiddenapi-generate-csv, $(full_classes_pre_proguard_jar),$(hiddenapi_flags_csv),$(hiddenapi_metadata_csv)))
+  LOCAL_INTERMEDIATE_TARGETS += $(hiddenapi_flags_csv) $(hiddenapi_metadata_csv)
   $(eval $(call hiddenapi-copy-dex-files,$(built_dex_intermediate),$(built_dex_hiddenapi)))
   built_dex_copy_from := $(built_dex_hiddenapi)
 else # !is_boot_jar
diff --git a/core/java_common.mk b/core/java_common.mk
index 860d73c..f4c47c8 100644
--- a/core/java_common.mk
+++ b/core/java_common.mk
@@ -499,7 +499,7 @@
 ifeq ($(ONE_SHOT_MAKEFILE),)
 installed_static_library_notice_file_targets := \
     $(foreach lib,$(LOCAL_STATIC_JAVA_LIBRARIES), \
-      NOTICE-$(if $(LOCAL_IS_HOST_MODULE),HOST,TARGET)-JAVA_LIBRARIES-$(lib))
+      NOTICE-$(if $(LOCAL_IS_HOST_MODULE),HOST$(if $(my_host_cross),_CROSS,),TARGET)-JAVA_LIBRARIES-$(lib))
 else
 installed_static_library_notice_file_targets :=
 endif
diff --git a/core/json.mk b/core/json.mk
new file mode 100644
index 0000000..ba8ffa7
--- /dev/null
+++ b/core/json.mk
@@ -0,0 +1,35 @@
+4space :=$= $(space)$(space)$(space)$(space)
+invert_bool =$= $(if $(strip $(1)),,true)
+
+# Converts a list to a JSON list.
+# $1: List separator.
+# $2: List.
+_json_list =$= [$(if $(2),"$(subst $(1),"$(comma)",$(2))")]
+
+# Converts a space-separated list to a JSON list.
+json_list =$= $(call _json_list,$(space),$(1))
+
+# Converts a comma-separated list to a JSON list.
+csv_to_json_list =$= $(call _json_list,$(comma),$(1))
+
+# Adds or removes 4 spaces from _json_indent
+json_increase_indent =$= $(eval _json_indent := $$(_json_indent)$$(4space))
+json_decrease_indent =$= $(eval _json_indent := $$(subst _,$$(space),$$(patsubst %____,%,$$(subst $$(space),_,$$(_json_indent)))))
+
+# 1: Key name
+# 2: Value
+add_json_val =$= $(eval _json_contents := $$(_json_contents)$$(_json_indent)"$$(strip $$(1))": $$(strip $$(2))$$(comma)$$(newline))
+add_json_str =$= $(call add_json_val,$(1),"$(strip $(2))")
+add_json_list =$= $(call add_json_val,$(1),$(call json_list,$(patsubst %,%,$(2))))
+add_json_csv =$= $(call add_json_val,$(1),$(call csv_to_json_list,$(strip $(2))))
+add_json_bool =$= $(call add_json_val,$(1),$(if $(strip $(2)),true,false))
+add_json_map =$= $(eval _json_contents := $$(_json_contents)$$(_json_indent)"$$(strip $$(1))": {$$(newline))$(json_increase_indent)
+end_json_map =$= $(json_decrease_indent)$(eval _json_contents := $$(_json_contents)$$(if $$(filter %$$(comma),$$(lastword $$(_json_contents))),__SV_END)$$(_json_indent)},$$(newline))
+
+# Clears _json_contents to start a new json file
+json_start =$= $(eval _json_contents := {$$(newline))$(eval _json_indent := $$(4space))
+
+# Adds the trailing close brace to _json_contents, and removes any trailing commas if necessary
+json_end =$= $(eval _json_contents := $$(subst $$(comma)$$(newline)__SV_END,$$(newline),$$(_json_contents)__SV_END}$$(newline)))
+
+json_contents =$= $(_json_contents)
diff --git a/core/local_systemsdk.mk b/core/local_systemsdk.mk
index 49085fd..7acb57a 100644
--- a/core/local_systemsdk.mk
+++ b/core/local_systemsdk.mk
@@ -25,7 +25,7 @@
   ifneq (,$(filter JAVA_LIBRARIES APPS,$(LOCAL_MODULE_CLASS)))
     ifndef LOCAL_SDK_VERSION
       ifeq ($(_is_vendor_app),true)
-        ifeq (,$(findstring __auto_generated_rro,$(LOCAL_MODULE)))
+        ifeq (,$(filter framework-res__auto_generated_rro,$(LOCAL_MODULE)))
           # Runtime resource overlay for framework-res is exempted from building
           # against System SDK.
           # TODO(b/35859726): remove this exception
diff --git a/core/main.mk b/core/main.mk
index fdf14de..9fd1c35 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -244,7 +244,13 @@
 ADDITIONAL_DEFAULT_PROPERTIES += ro.actionable_compatible_property.enabled=${PRODUCT_COMPATIBLE_PROPERTY}
 endif
 
-ADDITIONAL_PRODUCT_PROPERTIES += ro.boot.logical_partitions=$(PRODUCT_USE_LOGICAL_PARTITIONS)
+ifeq ($(PRODUCT_USE_DYNAMIC_PARTITIONS),true)
+ADDITIONAL_PRODUCT_PROPERTIES += ro.boot.dynamic_partitions=true
+endif
+
+ifeq ($(PRODUCT_RETROFIT_DYNAMIC_PARTITIONS),true)
+ADDITIONAL_PRODUCT_PROPERTIES += ro.boot.dynamic_partitions_retrofit=true
+endif
 
 # -----------------------------------------------------------------
 ###
@@ -404,7 +410,9 @@
 # Typical build; include any Android.mk files we can find.
 #
 
-
+# Before we go and include all of the module makefiles, strip values for easier
+# processing.
+$(call strip-product-vars)
 # Before we go and include all of the module makefiles, mark the PRODUCT_*
 # and ADDITIONAL*PROPERTIES values readonly so that they won't be modified.
 $(call readonly-product-vars)
@@ -965,7 +973,7 @@
 # Expand a list of modules to the modules that they override (if any)
 # $(1): The list of modules.
 define module-overrides
-$(foreach m,$(1),$(PACKAGES.$(m).OVERRIDES) $(EXECUTABLES.$(m).OVERRIDES))
+$(foreach m,$(1),$(PACKAGES.$(m).OVERRIDES) $(EXECUTABLES.$(m).OVERRIDES) $(SHARED_LIBRARIES.$(m).OVERRIDES))
 endef
 
 ###########################################################
@@ -1075,7 +1083,8 @@
   product_MODULES := $(_pif_modules)
 
   # Verify the artifact path requirements made by included products.
-
+  is_asan := $(if $(filter address,$(SANITIZE_TARGET)),true)
+  ifneq (true,$(or $(is_asan),$(DISABLE_ARTIFACT_PATH_REQUIREMENTS)))
   # Fakes don't get installed, and host files are irrelevant.
   static_whitelist_patterns := $(TARGET_OUT_FAKE)/% $(HOST_OUT)/%
   # RROs become REQUIRED by the source module, but are always placed on the vendor partition.
@@ -1119,6 +1128,7 @@
 $(PRODUCT_OUT)/offending_artifacts.txt:
 	rm -f $@
 	$(foreach f,$(sort $(all_offending_files)),echo $(f) >> $@;)
+  endif
 else
   # We're not doing a full build, and are probably only including
   # a subset of the module makefiles.  Don't try to build any modules
@@ -1198,6 +1208,9 @@
 modules_to_check += $(foreach m,$(ALL_MODULES),$(ALL_MODULES.$(m).BUILT))
 endif
 
+# Build docs as part of checkbuild to catch more breakages.
+module_to_check += $(ALL_DOCS)
+
 # for easier debugging
 modules_to_check := $(sort $(modules_to_check))
 #$(error modules_to_check $(modules_to_check))
@@ -1382,6 +1395,7 @@
   $(call dist-for-goals, droidcore, \
     $(INTERNAL_UPDATE_PACKAGE_TARGET) \
     $(INTERNAL_OTA_PACKAGE_TARGET) \
+    $(INTERNAL_OTA_RETROFIT_DYNAMIC_PARTITIONS_PACKAGE_TARGET) \
     $(BUILT_OTATOOLS_PACKAGE) \
     $(SYMBOLS_ZIP) \
     $(COVERAGE_ZIP) \
@@ -1522,7 +1536,7 @@
 .PHONY: dump-files
 dump-files:
 	$(info product_FILES for $(TARGET_DEVICE) ($(INTERNAL_PRODUCT)):)
-	$(foreach p,$(product_FILES),$(info :   $(p)))
+	$(foreach p,$(sort $(product_FILES)),$(info :   $(p)))
 	@echo Successfully dumped product file list
 
 .PHONY: nothing
diff --git a/core/notice_files.mk b/core/notice_files.mk
index 08778c5..e687ab2 100644
--- a/core/notice_files.mk
+++ b/core/notice_files.mk
@@ -119,6 +119,6 @@
 # Define it even if the notice file doesn't exist so that other
 # modules can depend on it.
 notice_target := NOTICE-$(if \
-    $(LOCAL_IS_HOST_MODULE),HOST,TARGET)-$(LOCAL_MODULE_CLASS)-$(LOCAL_MODULE)
+    $(LOCAL_IS_HOST_MODULE),HOST$(if $(my_host_cross),_CROSS,),TARGET)-$(LOCAL_MODULE_CLASS)-$(LOCAL_MODULE)
 .PHONY: $(notice_target)
 $(notice_target): $(installed_notice_file)
diff --git a/core/package_internal.mk b/core/package_internal.mk
index 3e68c2f..9327587 100644
--- a/core/package_internal.mk
+++ b/core/package_internal.mk
@@ -743,7 +743,7 @@
 ifdef LOCAL_DEX_PREOPT
 $(built_odex): PRIVATE_DEX_FILE := $(built_dex)
 ifeq (true, $(LOCAL_UNCOMPRESS_DEX))
-$(built_odex): $(ZIP2ZIP)
+$(built_odex): $(ZIP2ZIP) $(ZIPALIGN)
 endif
 # Use pattern rule - we may have multiple built odex files.
 $(built_odex) : $(dir $(LOCAL_BUILT_MODULE))% : $(built_dex)
diff --git a/core/product.mk b/core/product.mk
index f9f8d60..8497b28 100644
--- a/core/product.mk
+++ b/core/product.mk
@@ -203,13 +203,16 @@
     PRODUCT_CFI_EXCLUDE_PATHS \
     PRODUCT_COMPATIBLE_PROPERTY_OVERRIDE \
     PRODUCT_ACTIONABLE_COMPATIBLE_PROPERTY_DISABLE \
-    PRODUCT_USE_LOGICAL_PARTITIONS \
     PRODUCT_ENFORCE_ARTIFACT_PATH_REQUIREMENTS \
     PRODUCT_ARTIFACT_PATH_REQUIREMENT_HINT \
     PRODUCT_ARTIFACT_PATH_REQUIREMENT_WHITELIST \
     PRODUCT_USE_DYNAMIC_PARTITION_SIZE \
     PRODUCT_BUILD_SUPER_PARTITION \
     PRODUCT_FORCE_PRODUCT_MODULES_TO_SYSTEM_PARTITION \
+    PRODUCT_USE_DYNAMIC_PARTITIONS \
+    PRODUCT_RETROFIT_DYNAMIC_PARTITIONS \
+    PRODUCT_OTA_ENFORCE_VINTF_KERNEL_REQUIREMENTS \
+    PRODUCT_XOM_EXCLUDE_PATHS \
 
 define dump-product
 $(info ==== $(1) ====)\
@@ -401,7 +404,7 @@
 	WITH_DEXPREOPT_BOOT_IMG_AND_SYSTEM_SERVER_ONLY
 
 # Logical partitions related variables.
-_product_stash_var_list += \
+_dynamic_partitions_var_list += \
 	BOARD_SYSTEMIMAGE_PARTITION_RESERVED_SIZE \
 	BOARD_VENDORIMAGE_PARTITION_RESERVED_SIZE \
 	BOARD_ODMIMAGE_PARTITION_RESERVED_SIZE \
@@ -410,6 +413,9 @@
 	BOARD_SUPER_PARTITION_SIZE \
 	BOARD_SUPER_PARTITION_GROUPS \
 
+_product_stash_var_list += $(_dynamic_partitions_var_list)
+_product_strip_var_list := $(_dynamic_partitions_var_list)
+
 #
 # Mark the variables in _product_stash_var_list as readonly
 #
@@ -420,6 +426,13 @@
  )
 endef
 
+#
+# Strip the variables in _product_strip_var_list
+#
+define strip-product-vars
+$(foreach v,$(_product_strip_var_list),$(eval $(v) := $(strip $($(v)))))
+endef
+
 define add-to-product-copy-files-if-exists
 $(if $(wildcard $(word 1,$(subst :, ,$(1)))),$(1))
 endef
diff --git a/core/product_config.mk b/core/product_config.mk
index 577bafe..ac7fe91 100644
--- a/core/product_config.mk
+++ b/core/product_config.mk
@@ -501,6 +501,10 @@
 PRODUCT_CFI_INCLUDE_PATHS := \
     $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_CFI_INCLUDE_PATHS))
 
+# Whether any paths are excluded from being set XOM when ENABLE_XOM=true
+PRODUCT_XOM_EXCLUDE_PATHS := \
+    $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_XOM_EXCLUDE_PATHS))
+
 # which Soong namespaces to export to Make
 PRODUCT_SOONG_NAMESPACES := \
     $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_SOONG_NAMESPACES))
@@ -513,20 +517,30 @@
 PRODUCT_ACTIONABLE_COMPATIBLE_PROPERTY_DISABLE := \
     $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_ACTIONABLE_COMPATIBLE_PROPERTY_DISABLE))
 
-# Logical and Resizable Partitions feature flag.
-PRODUCT_USE_LOGICAL_PARTITIONS := \
-    $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_USE_LOGICAL_PARTITIONS))
-.KATI_READONLY := PRODUCT_USE_LOGICAL_PARTITIONS
+# Dynamic partition feature flags.
 
-# All requirements of PRODUCT_USE_LOGICAL_PARTITIONS falls back to
-# PRODUCT_USE_LOGICAL_PARTITIONS if not defined.
+# When this is true, dynamic partitions is retrofitted on a device that has
+# already been launched without dynamic partitions. Otherwise, the device
+# is launched with dynamic partitions.
+# This flag implies PRODUCT_USE_DYNAMIC_PARTITIONS.
+PRODUCT_RETROFIT_DYNAMIC_PARTITIONS := \
+    $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_RETROFIT_DYNAMIC_PARTITIONS))
+.KATI_READONLY := PRODUCT_RETROFIT_DYNAMIC_PARTITIONS
+
+PRODUCT_USE_DYNAMIC_PARTITIONS := $(or \
+    $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_USE_DYNAMIC_PARTITIONS)), \
+    $(PRODUCT_RETROFIT_DYNAMIC_PARTITIONS))
+.KATI_READONLY := PRODUCT_USE_DYNAMIC_PARTITIONS
+
+# All requirements of PRODUCT_USE_DYNAMIC_PARTITIONS falls back to
+# PRODUCT_USE_DYNAMIC_PARTITIONS if not defined.
 PRODUCT_USE_DYNAMIC_PARTITION_SIZE := $(or \
     $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_USE_DYNAMIC_PARTITION_SIZE)),\
-    $(PRODUCT_USE_LOGICAL_PARTITIONS))
+    $(PRODUCT_USE_DYNAMIC_PARTITIONS))
 .KATI_READONLY := PRODUCT_USE_DYNAMIC_PARTITION_SIZE
 PRODUCT_BUILD_SUPER_PARTITION := $(or \
     $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_BUILD_SUPER_PARTITION)),\
-    $(PRODUCT_USE_LOGICAL_PARTITIONS))
+    $(PRODUCT_USE_DYNAMIC_PARTITIONS))
 .KATI_READONLY := PRODUCT_BUILD_SUPER_PARTITION
 
 # List of modules that should be forcefully unmarked from being LOCAL_PRODUCT_MODULE, and hence
@@ -534,3 +548,10 @@
 PRODUCT_FORCE_PRODUCT_MODULES_TO_SYSTEM_PARTITION := \
     $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_FORCE_PRODUCT_MODULES_TO_SYSTEM_PARTITION))
 .KATI_READONLY := PRODUCT_FORCE_PRODUCT_MODULES_TO_SYSTEM_PARTITION
+
+# If set, kernel configuration requirements are present in OTA package (and will be enforced
+# during OTA). Otherwise, kernel configuration requirements are enforced in VTS.
+# Devices that checks the running kernel (instead of the kernel in OTA package) should not
+# set this variable to prevent OTA failures.
+PRODUCT_OTA_ENFORCE_VINTF_KERNEL_REQUIREMENTS := \
+    $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_OTA_ENFORCE_VINTF_KERNEL_REQUIREMENTS))
diff --git a/core/shared_library_internal.mk b/core/shared_library_internal.mk
index 41e6a95..44bb020 100644
--- a/core/shared_library_internal.mk
+++ b/core/shared_library_internal.mk
@@ -34,6 +34,11 @@
 include $(BUILD_SYSTEM)/dynamic_binary.mk
 
 # Define PRIVATE_ variables from global vars
+ifeq ($(LOCAL_NO_LIBCRT_BUILTINS),true)
+my_target_libcrt_builtins :=
+else
+my_target_libcrt_builtins := $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)LIBCRT_BUILTINS)
+endif
 ifeq ($(LOCAL_NO_LIBGCC),true)
 my_target_libgcc :=
 else
@@ -54,6 +59,7 @@
 my_target_crtbegin_so_o := $(wildcard $(my_ndk_sysroot_lib)/crtbegin_so.o)
 my_target_crtend_so_o := $(wildcard $(my_ndk_sysroot_lib)/crtend_so.o)
 endif
+$(linked_module): PRIVATE_TARGET_LIBCRT_BUILTINS := $(my_target_libcrt_builtins)
 $(linked_module): PRIVATE_TARGET_LIBGCC := $(my_target_libgcc)
 $(linked_module): PRIVATE_TARGET_LIBATOMIC := $(my_target_libatomic)
 $(linked_module): PRIVATE_TARGET_CRTBEGIN_SO_O := $(my_target_crtbegin_so_o)
@@ -64,6 +70,7 @@
         $(all_libraries) \
         $(my_target_crtbegin_so_o) \
         $(my_target_crtend_so_o) \
+        $(my_target_libcrt_builtins) \
         $(my_target_libgcc) \
         $(my_target_libatomic) \
         $(LOCAL_ADDITIONAL_DEPENDENCIES)
diff --git a/core/soong_cc_prebuilt.mk b/core/soong_cc_prebuilt.mk
index ae67fb8..088b076 100644
--- a/core/soong_cc_prebuilt.mk
+++ b/core/soong_cc_prebuilt.mk
@@ -188,7 +188,7 @@
       $(LOCAL_STATIC_LIBRARIES))
 installed_static_library_notice_file_targets := \
     $(foreach lib,$(my_static_libraries) $(LOCAL_WHOLE_STATIC_LIBRARIES), \
-      NOTICE-$(if $(LOCAL_IS_HOST_MODULE),HOST,TARGET)-STATIC_LIBRARIES-$(lib))
+      NOTICE-$(if $(LOCAL_IS_HOST_MODULE),HOST$(if $(my_host_cross),_CROSS,),TARGET)-STATIC_LIBRARIES-$(lib))
 
 $(notice_target): | $(installed_static_library_notice_file_targets)
 $(LOCAL_INSTALLED_MODULE): | $(notice_target)
diff --git a/core/soong_config.mk b/core/soong_config.mk
index 7a884e0..279a612 100644
--- a/core/soong_config.mk
+++ b/core/soong_config.mk
@@ -14,31 +14,13 @@
 endif
 
 ifeq ($(WRITE_SOONG_VARIABLES),true)
-# Converts a list to a JSON list.
-# $1: List separator.
-# $2: List.
-_json_list = [$(if $(2),"$(subst $(1),"$(comma)",$(2))")]
 
-# Converts a space-separated list to a JSON list.
-json_list = $(call _json_list,$(space),$(1))
-
-# Converts a comma-separated list to a JSON list.
-csv_to_json_list = $(call _json_list,$(comma),$(1))
-
-# 1: Key name
-# 2: Value
-add_json_val = $(eval _contents := $$(_contents)    "$$(strip $$(1))":$$(space)$$(strip $$(2))$$(comma)$$(newline))
-add_json_str = $(call add_json_val,$(1),"$(strip $(2))")
-add_json_list = $(call add_json_val,$(1),$(call json_list,$(patsubst %,%,$(2))))
-add_json_csv = $(call add_json_val,$(1),$(call csv_to_json_list,$(strip $(2))))
-add_json_bool = $(call add_json_val,$(1),$(if $(strip $(2)),true,false))
-
-invert_bool = $(if $(strip $(1)),,true)
+include $(BUILD_SYSTEM)/json.mk
 
 # Create soong.variables with copies of makefile settings.  Runs every build,
 # but only updates soong.variables if it changes
 $(shell mkdir -p $(dir $(SOONG_VARIABLES)))
-_contents := {$(newline)
+$(call json_start)
 
 $(call add_json_str,  Make_suffix, -$(TARGET_PRODUCT))
 
@@ -100,6 +82,8 @@
 $(call add_json_bool, EnableCFI,                         $(call invert_bool,$(filter false,$(ENABLE_CFI))))
 $(call add_json_list, CFIExcludePaths,                   $(CFI_EXCLUDE_PATHS) $(PRODUCT_CFI_EXCLUDE_PATHS))
 $(call add_json_list, CFIIncludePaths,                   $(CFI_INCLUDE_PATHS) $(PRODUCT_CFI_INCLUDE_PATHS))
+$(call add_json_bool, EnableXOM,                         $(filter true,$(ENABLE_XOM)))
+$(call add_json_list, XOMExcludePaths,                   $(XOM_EXCLUDE_PATHS) $(PRODUCT_XOM_EXCLUDE_PATHS))
 $(call add_json_list, IntegerOverflowExcludePaths,       $(INTEGER_OVERFLOW_EXCLUDE_PATHS) $(PRODUCT_INTEGER_OVERFLOW_EXCLUDE_PATHS))
 
 $(call add_json_bool, ClangTidy,                         $(filter 1 true,$(WITH_TIDY)))
@@ -112,7 +96,6 @@
 $(call add_json_bool, ArtUseReadBarrier,                 $(call invert_bool,$(filter false,$(PRODUCT_ART_USE_READ_BARRIER))))
 $(call add_json_bool, Binder32bit,                       $(BINDER32BIT))
 $(call add_json_str,  BtConfigIncludeDir,                $(BOARD_BLUETOOTH_BDROID_BUILDCFG_INCLUDE_DIR))
-$(call add_json_bool, Device_uses_hwc2,                  $(filter true,$(TARGET_USES_HWC2)))
 $(call add_json_list, DeviceKernelHeaders,               $(TARGET_PROJECT_SYSTEM_INCLUDES))
 $(call add_json_bool, DevicePrefer32BitApps,             $(filter true,$(TARGET_PREFER_32_BIT_APPS)))
 $(call add_json_bool, DevicePrefer32BitExecutables,      $(filter true,$(TARGET_PREFER_32_BIT_EXECUTABLES)))
@@ -154,17 +137,19 @@
 $(call add_json_list, BoardPlatPublicSepolicyDirs,       $(BOARD_PLAT_PUBLIC_SEPOLICY_DIR))
 $(call add_json_list, BoardPlatPrivateSepolicyDirs,      $(BOARD_PLAT_PRIVATE_SEPOLICY_DIR))
 
-_contents := $(_contents)    "VendorVars": {$(newline)
+$(call add_json_bool, FlattenApex,                       $(filter true,$(TARGET_FLATTEN_APEX)))
+
+$(call add_json_map, VendorVars)
 $(foreach namespace,$(SOONG_CONFIG_NAMESPACES),\
-  $(eval _contents := $$(_contents)        "$(namespace)": {$$(newline)) \
+  $(call add_json_map, $(namespace))\
   $(foreach key,$(SOONG_CONFIG_$(namespace)),\
-    $(eval _contents := $$(_contents)            "$(key)": "$(SOONG_CONFIG_$(namespace)_$(key))",$$(newline)))\
-  $(eval _contents := $$(_contents)$(if $(strip $(SOONG_CONFIG_$(namespace))),__SV_END)        },$$(newline)))
-_contents := $(_contents)$(if $(strip $(SOONG_CONFIG_NAMESPACES)),__SV_END)    },$(newline)
+    $(call add_json_str,$(key),$(SOONG_CONFIG_$(namespace)_$(key))))\
+  $(call end_json_map))
+$(call end_json_map)
 
-_contents := $(subst $(comma)$(newline)__SV_END,$(newline),$(_contents)__SV_END}$(newline))
+$(call json_end)
 
-$(file >$(SOONG_VARIABLES).tmp,$(_contents))
+$(file >$(SOONG_VARIABLES).tmp,$(json_contents))
 
 $(shell if ! cmp -s $(SOONG_VARIABLES).tmp $(SOONG_VARIABLES); then \
 	  mv $(SOONG_VARIABLES).tmp $(SOONG_VARIABLES); \
@@ -172,15 +157,4 @@
 	  rm $(SOONG_VARIABLES).tmp; \
 	fi)
 
-_json_list :=
-json_list :=
-csv_to_json_list :=
-add_json_val :=
-add_json_str :=
-add_json_list :=
-add_json_csv :=
-add_json_bool :=
-invert_bool :=
-_contents :=
-
 endif # CONFIGURE_SOONG
diff --git a/core/soong_java_prebuilt.mk b/core/soong_java_prebuilt.mk
index 3e6b261..1642ba7 100644
--- a/core/soong_java_prebuilt.mk
+++ b/core/soong_java_prebuilt.mk
@@ -19,10 +19,8 @@
 full_classes_pre_proguard_jar := $(intermediates.COMMON)/classes-pre-proguard.jar
 full_classes_header_jar := $(intermediates.COMMON)/classes-header.jar
 common_javalib.jar := $(intermediates.COMMON)/javalib.jar
-hiddenapi_whitelist_txt := $(intermediates.COMMON)/hiddenapi/whitelist.txt
-hiddenapi_greylist_txt := $(intermediates.COMMON)/hiddenapi/greylist.txt
-hiddenapi_darkgreylist_txt := $(intermediates.COMMON)/hiddenapi/darkgreylist.txt
-hiddenapi_greylist_metadata_csv := $(intermediates.COMMON)/hiddenapi/greylist.csv
+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)))
@@ -80,7 +78,7 @@
         # We use full_classes_jar here, which is the post-proguard jar (on the basis that we also
         # have a full_classes_pre_proguard_jar). This is consistent with the equivalent code in
         # java.mk.
-        $(eval $(call hiddenapi-generate-greylist-txt,$(full_classes_jar),$(hiddenapi_whitelist_txt),$(hiddenapi_greylist_txt),$(hiddenapi_darkgreylist_txt),$(hiddenapi_greylist_metadata_csv)))
+        $(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)))
       else # !is_boot_jar
         $(eval $(call copy-one-file,$(LOCAL_SOONG_DEX_JAR),$(common_javalib.jar)))
@@ -126,7 +124,7 @@
       # We use full_classes_jar here, which is the post-proguard jar (on the basis that we also
       # have a full_classes_pre_proguard_jar). This is consistent with the equivalent code in
       # java.mk.
-      $(eval $(call hiddenapi-generate-greylist-txt,$(full_classes_jar),$(hiddenapi_whitelist_txt),$(hiddenapi_greylist_txt),$(hiddenapi_darkgreylist_txt),$(hiddenapi_greylist_metadata_csv)))
+      $(eval $(call hiddenapi-generate-csv,$(full_classes_jar),$(hiddenapi_flags_csv),$(hiddenapi_metadata_csv)))
     endif
 
     $(eval $(call copy-one-file,$(full_classes_jar),$(LOCAL_BUILT_MODULE)))
diff --git a/envsetup.sh b/envsetup.sh
index a4d950e..400e7f0 100644
--- a/envsetup.sh
+++ b/envsetup.sh
@@ -1095,7 +1095,7 @@
 {
     local PID="$1"
     if [ "$PID" ] ; then
-        if [[ "$(adb shell cat /proc/$PID/exe | xxd -l 1 -s 4 -ps)" -eq "02" ]] ; then
+        if [[ "$(adb shell cat /proc/$PID/exe | xxd -l 1 -s 4 -p)" -eq "02" ]] ; then
             echo "64"
         else
             echo ""
@@ -1109,7 +1109,7 @@
     Darwin)
         function sgrep()
         {
-            find -E . -name .repo -prune -o -name .git -prune -o  -type f -iregex '.*\.(c|h|cc|cpp|S|java|xml|sh|mk|aidl|vts)' \
+            find -E . -name .repo -prune -o -name .git -prune -o  -type f -iregex '.*\.(c|h|cc|cpp|hpp|S|java|xml|sh|mk|aidl|vts)' \
                 -exec grep --color -n "$@" {} +
         }
 
@@ -1117,7 +1117,7 @@
     *)
         function sgrep()
         {
-            find . -name .repo -prune -o -name .git -prune -o  -type f -iregex '.*\.\(c\|h\|cc\|cpp\|S\|java\|xml\|sh\|mk\|aidl\|vts\)' \
+            find . -name .repo -prune -o -name .git -prune -o  -type f -iregex '.*\.\(c\|h\|cc\|cpp\|hpp\|S\|java\|xml\|sh\|mk\|aidl\|vts\)' \
                 -exec grep --color -n "$@" {} +
         }
         ;;
@@ -1182,7 +1182,7 @@
 
         function treegrep()
         {
-            find -E . -name .repo -prune -o -name .git -prune -o -type f -iregex '.*\.(c|h|cpp|S|java|xml)' \
+            find -E . -name .repo -prune -o -name .git -prune -o -type f -iregex '.*\.(c|h|cpp|hpp|S|java|xml)' \
                 -exec grep --color -n -i "$@" {} +
         }
 
@@ -1196,7 +1196,7 @@
 
         function treegrep()
         {
-            find . -name .repo -prune -o -name .git -prune -o -regextype posix-egrep -iregex '.*\.(c|h|cpp|S|java|xml)' -type f \
+            find . -name .repo -prune -o -name .git -prune -o -regextype posix-egrep -iregex '.*\.(c|h|cpp|hpp|S|java|xml)' -type f \
                 -exec grep --color -n -i "$@" {} +
         }
 
@@ -1567,10 +1567,19 @@
 
 function atest()
 {
-    # TODO (sbasi): Replace this to be a destination in the build out when & if
-    # atest is built by the build system. (This will be necessary if it ever
-    # depends on external pip projects).
-    "$(gettop)"/tools/tradefederation/core/atest/atest.py "$@"
+    # Let's use the built version over the prebuilt, then source code.
+    local os_arch=$(get_build_var HOST_PREBUILT_TAG)
+    local built_atest=${ANDROID_HOST_OUT}/bin/atest
+    local prebuilt_atest="$(gettop)"/prebuilts/asuite/atest/$os_arch/atest
+    if [[ -x $built_atest ]]; then
+        $built_atest "$@"
+    elif [[ -x $prebuilt_atest ]]; then
+        $prebuilt_atest "$@"
+    else
+        # TODO: once prebuilt atest released, remove the source code section
+        # and change the location of atest_completion.sh in addcompletions().
+        "$(gettop)"/tools/tradefederation/core/atest/atest.py "$@"
+    fi
 }
 
 # Zsh needs bashcompinit called to support bash-style completion.
diff --git a/target/board/BoardConfigEmuCommon.mk b/target/board/BoardConfigEmuCommon.mk
index 69ae6f0..38f79fd 100644
--- a/target/board/BoardConfigEmuCommon.mk
+++ b/target/board/BoardConfigEmuCommon.mk
@@ -10,7 +10,6 @@
 # no hardware camera
 USE_CAMERA_STUB := true
 
-TARGET_USES_HWC2 := true
 NUM_FRAMEBUFFER_SURFACE_BUFFERS := 3
 
 # Build OpenGLES emulation guest and host libraries
diff --git a/target/board/BoardConfigGsiCommon.mk b/target/board/BoardConfigGsiCommon.mk
index dfa103a..a52bb80 100644
--- a/target/board/BoardConfigGsiCommon.mk
+++ b/target/board/BoardConfigGsiCommon.mk
@@ -1,14 +1,14 @@
 # BoardConfigGsiCommon.mk
 #
 # Common compile-time definitions for GSI
+# Builds upon the mainline config.
 #
 
-# The generic product target doesn't have any hardware-specific pieces.
-TARGET_NO_BOOTLOADER := true
-TARGET_NO_KERNEL := true
+include build/make/target/board/BoardConfigMainlineCommon.mk
 
-# GSIs always use ext4.
-TARGET_USERIMAGES_USE_EXT4 := true
+# This flag is set by mainline but isn't desired for GSI.
+BOARD_USES_SYSTEM_OTHER_ODEX :=
+
 # GSIs are historically released in sparse format.
 # Some vendors' bootloaders don't work properly with raw format images. So
 # we explicit specify this need below (even though it's the current default).
@@ -40,14 +40,6 @@
 # over those set by the vendor.
 TARGET_SYSTEM_PROP := build/make/target/board/gsi_system.prop
 endif
-BOARD_VNDK_VERSION := current
-
-# system-as-root is mandatory from Android P
-TARGET_NO_RECOVERY := true
-BOARD_BUILD_SYSTEM_ROOT_IMAGE := true
-
-# 64 bits binder interface is mandatory from Android P
-TARGET_USES_64_BIT_BINDER := true
 
 # Android generic system image always create metadata partition
 BOARD_USES_METADATA_PARTITION := true
@@ -56,6 +48,3 @@
 # The partition size doesn't matter, just to make build pass.
 BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE := ext4
 BOARD_CACHEIMAGE_PARTITION_SIZE := 16777216
-
-# Audio: must using XML format for Treblized devices
-USE_XML_AUDIO_POLICY_CONF := 1
diff --git a/target/board/BoardConfigMainlineCommon.mk b/target/board/BoardConfigMainlineCommon.mk
new file mode 100644
index 0000000..1cbe2e0
--- /dev/null
+++ b/target/board/BoardConfigMainlineCommon.mk
@@ -0,0 +1,25 @@
+# BoardConfigMainlineCommon.mk
+#
+# Common compile-time definitions for mainline images.
+
+# The generic product target doesn't have any hardware-specific pieces.
+TARGET_NO_BOOTLOADER := true
+TARGET_NO_KERNEL := true
+
+TARGET_USERIMAGES_USE_EXT4 := true
+
+# system-as-root is mandatory from Android P
+TARGET_NO_RECOVERY := true
+BOARD_BUILD_SYSTEM_ROOT_IMAGE := true
+
+BOARD_VNDK_VERSION := current
+
+# Required flag for non-64 bit devices from P.
+TARGET_USES_64_BIT_BINDER := true
+
+# Puts odex files on system_other, as well as causing dex files not to get
+# stripped from APKs.
+BOARD_USES_SYSTEM_OTHER_ODEX := true
+
+# Audio: must using XML format for Treblized devices
+USE_XML_AUDIO_POLICY_CONF := 1
diff --git a/target/board/mainline_arm64/BoardConfig.mk b/target/board/mainline_arm64/BoardConfig.mk
index 906a566..521d976 100644
--- a/target/board/mainline_arm64/BoardConfig.mk
+++ b/target/board/mainline_arm64/BoardConfig.mk
@@ -24,4 +24,4 @@
 TARGET_2ND_CPU_ABI2 := armeabi
 TARGET_2ND_CPU_VARIANT := generic
 
-include build/make/target/board/BoardConfigGsiCommon.mk
+include build/make/target/board/BoardConfigMainlineCommon.mk
diff --git a/target/board/treble_common.mk b/target/board/treble_common.mk
index 9413a75..eda5b37 100644
--- a/target/board/treble_common.mk
+++ b/target/board/treble_common.mk
@@ -44,8 +44,6 @@
 # Android generic system image always create metadata partition
 BOARD_USES_METADATA_PARTITION := true
 
-# Generic AOSP image does NOT support HWC1
-TARGET_USES_HWC2 := true
 # Set emulator framebuffer display device buffer count to 3
 NUM_FRAMEBUFFER_SURFACE_BUFFERS := 3
 
diff --git a/target/product/OWNERS b/target/product/OWNERS
new file mode 100644
index 0000000..1c74859
--- /dev/null
+++ b/target/product/OWNERS
@@ -0,0 +1 @@
+per-file runtime_libart.mk = agampe@google.com, calin@google.com, mast@google.com, ngeoffray@google.com, oth@google.com, rpl@google.com, sehr@google.com, vmarko@google.com
diff --git a/target/product/aosp_arm.mk b/target/product/aosp_arm.mk
index 795f8aa..5a6a092 100644
--- a/target/product/aosp_arm.mk
+++ b/target/product/aosp_arm.mk
@@ -38,6 +38,10 @@
 # Needed by Pi newly launched device to pass VtsTrebleSysProp on GSI
 PRODUCT_COMPATIBLE_PROPERTY_OVERRIDE := true
 
+# GSI specific tasks on boot
+PRODUCT_COPY_FILES += \
+    build/make/target/product/vndk/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 f3f3c5a..90c159f 100644
--- a/target/product/aosp_arm64.mk
+++ b/target/product/aosp_arm64.mk
@@ -54,6 +54,10 @@
 # Needed by Pi newly launched device to pass VtsTrebleSysProp on GSI
 PRODUCT_COMPATIBLE_PROPERTY_OVERRIDE := true
 
+# GSI specific tasks on boot
+PRODUCT_COPY_FILES += \
+    build/make/target/product/vndk/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.mk b/target/product/aosp_x86.mk
index e3167af..da31e24 100644
--- a/target/product/aosp_x86.mk
+++ b/target/product/aosp_x86.mk
@@ -38,6 +38,10 @@
 # Needed by Pi newly launched device to pass VtsTrebleSysProp on GSI
 PRODUCT_COMPATIBLE_PROPERTY_OVERRIDE := true
 
+# GSI specific tasks on boot
+PRODUCT_COPY_FILES += \
+    build/make/target/product/vndk/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 222adaa..4ce40cc 100644
--- a/target/product/aosp_x86_64.mk
+++ b/target/product/aosp_x86_64.mk
@@ -54,6 +54,10 @@
 # Needed by Pi newly launched device to pass VtsTrebleSysProp on GSI
 PRODUCT_COMPATIBLE_PROPERTY_OVERRIDE := true
 
+# GSI specific tasks on boot
+PRODUCT_COPY_FILES += \
+    build/make/target/product/vndk/init.gsi.rc:system/etc/init/init.gsi.rc
+
 # Support addtional P vendor interface
 PRODUCT_EXTRA_VNDK_VERSIONS := 28
 
diff --git a/target/product/base_system.mk b/target/product/base_system.mk
index 7b70c86..2c53a6e 100644
--- a/target/product/base_system.mk
+++ b/target/product/base_system.mk
@@ -52,6 +52,8 @@
     charger \
     cmd \
     com.android.location.provider \
+    com.android.resolv \
+    com.android.tzdata \
     ContactsProvider \
     content \
     crash_dump \
@@ -78,6 +80,7 @@
     heapprofd \
     heapprofd_client \
     gatekeeperd \
+    gpuservice \
     healthd \
     hid \
     hwservicemanager \
@@ -310,13 +313,20 @@
 PRODUCT_PACKAGES_DEBUG := \
     adb_keys \
     apex.test.key \
+    arping \
     iotop \
+    iw \
     logpersist.start \
     perfprofd \
     procrank \
     showmap \
     sqlite3 \
+    ss \
     strace \
+    sanitizer-status \
+    tracepath \
+    tracepath6 \
+    traceroute6 \
     unwind_info \
     unwind_reg_info \
     unwind_symbols \
diff --git a/target/product/mainline_system.mk b/target/product/mainline_system.mk
index b0edb56..c41e1d7 100644
--- a/target/product/mainline_system.mk
+++ b/target/product/mainline_system.mk
@@ -31,6 +31,10 @@
     RcsService \
     SafetyRegulatoryInfo \
     Stk \
+    TimeZoneUpdater \
+
+# Binaries
+PRODUCT_PACKAGES += llkd
 
 # OTA support
 PRODUCT_PACKAGES += \
@@ -38,12 +42,10 @@
     update_verifier \
 
 # Wrapped net utils for /vendor access.
-PRODUCT_PACKAGES += \
-    netutils-wrapper-1.0 \
+PRODUCT_PACKAGES += netutils-wrapper-1.0
 
 # Charger images
-PRODUCT_PACKAGES += \
-    charger_res_images \
+PRODUCT_PACKAGES += charger_res_images
 
 # system_other support
 PRODUCT_PACKAGES += \
@@ -55,6 +57,29 @@
     audio.a2dp.default \
     audio.hearing_aid.default \
 
+# For ringtones that rely on forward lock encryption
+PRODUCT_PACKAGES += libfwdlockengine
+
+# System libraries commonly depended on by things on the product partition.
+# This list will be pruned periodically.
+PRODUCT_PACKAGES += \
+    android.hardware.biometrics.fingerprint@2.1 \
+    android.hardware.radio@1.0 \
+    android.hardware.radio@1.1 \
+    android.hardware.radio@1.2 \
+    android.hardware.radio.config@1.0 \
+    android.hardware.radio.deprecated@1.0 \
+    android.hardware.secure_element@1.0 \
+    android.hardware.tests.libhwbinder@1.0-impl \
+    android.hidl.base@1.0 \
+    libaudio-resampler \
+    liblogwrap \
+    liblz4 \
+    libminui \
+    libnl \
+    libprotobuf-cpp-full \
+    libprotobuf-cpp-full-rtti \
+
 PRODUCT_PACKAGES_DEBUG += \
     avbctl \
     bootctl \
@@ -64,6 +89,11 @@
     tinypcminfo \
     update_engine_client \
 
+# Enable stats logging in LMKD
+TARGET_LMKD_STATS_LOG := true
+PRODUCT_SYSTEM_DEFAULT_PROPERTIES += \
+    ro.lmk.log_stats=true
+
 # Enable dynamic partition size
 PRODUCT_USE_DYNAMIC_PARTITION_SIZE := true
 
diff --git a/target/product/runtime_libart.mk b/target/product/runtime_libart.mk
index bda4524..6d835fd 100644
--- a/target/product/runtime_libart.mk
+++ b/target/product/runtime_libart.mk
@@ -51,6 +51,10 @@
 PRODUCT_PACKAGES += art-runtime
 # ART/dex helpers.
 PRODUCT_PACKAGES += art-tools
+# Android Runtime APEX module.
+ifneq ($(DONT_INCLUDE_RUNTIME_APEX), true)
+  PRODUCT_PACKAGES += com.android.runtime
+endif
 
 # Certificates.
 PRODUCT_PACKAGES += \
diff --git a/target/product/treble_common.mk b/target/product/treble_common.mk
index d3cce76..bbad484 100644
--- a/target/product/treble_common.mk
+++ b/target/product/treble_common.mk
@@ -46,9 +46,13 @@
 PRODUCT_COPY_FILES += \
     device/generic/common/nfc/libnfc-nci.conf:system/etc/libnfc-nci.conf
 
+# GSI specific tasks on boot
+PRODUCT_COPY_FILES += \
+    build/make/target/product/vndk/init.gsi.rc:system/etc/init/init.gsi.rc
+
 # Support for the O-MR1 devices
 PRODUCT_COPY_FILES += \
-    build/make/target/product/vndk/init.gsi.rc:system/etc/init/init.gsi.rc \
+    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
 
 # Name space configuration file for non-enforcing VNDK
diff --git a/target/product/vndk/current.txt b/target/product/vndk/current.txt
index 6120e9d..47c2d41 100644
--- a/target/product/vndk/current.txt
+++ b/target/product/vndk/current.txt
@@ -23,6 +23,7 @@
 VNDK-SP: android.hidl.memory.token@1.0.so
 VNDK-SP: android.hidl.memory@1.0.so
 VNDK-SP: android.hidl.memory@1.0-impl.so
+VNDK-SP: android.hidl.safe_union@1.0.so
 VNDK-SP: libRSCpuRef.so
 VNDK-SP: libRSDriver.so
 VNDK-SP: libRS_internal.so
@@ -121,11 +122,14 @@
 VNDK-core: android.hardware.power@1.2.so
 VNDK-core: android.hardware.power@1.3.so
 VNDK-core: android.hardware.radio.config@1.0.so
+VNDK-core: android.hardware.radio.config@1.1.so
+VNDK-core: android.hardware.radio.config@1.2.so
 VNDK-core: android.hardware.radio.deprecated@1.0.so
 VNDK-core: android.hardware.radio@1.0.so
 VNDK-core: android.hardware.radio@1.1.so
 VNDK-core: android.hardware.radio@1.2.so
 VNDK-core: android.hardware.radio@1.3.so
+VNDK-core: android.hardware.radio@1.4.so
 VNDK-core: android.hardware.secure_element@1.0.so
 VNDK-core: android.hardware.sensors@1.0.so
 VNDK-core: android.hardware.soundtrigger@2.0.so
@@ -154,7 +158,6 @@
 VNDK-core: android.hardware.wifi@1.2.so
 VNDK-core: android.hidl.allocator@1.0.so
 VNDK-core: android.hidl.memory.block@1.0.so
-VNDK-core: android.hidl.safe_union@1.0.so
 VNDK-core: android.hidl.token@1.0.so
 VNDK-core: android.hidl.token@1.0-utils.so
 VNDK-core: android.system.net.netd@1.0.so
diff --git a/target/product/vndk/init.gsi.rc b/target/product/vndk/init.gsi.rc
index 0150b1a..695820e 100644
--- a/target/product/vndk/init.gsi.rc
+++ b/target/product/vndk/init.gsi.rc
@@ -1,2 +1,2 @@
-# If ro.vndk.version is not defined, import init.vndk-27.rc.
-import /system/etc/init/gsi/init.vndk-${ro.vndk.version:-27}.rc
+on early-init
+    umount /product   # TODO(b/119391482): workaround for /system/product
diff --git a/target/product/vndk/init.legacy-gsi.rc b/target/product/vndk/init.legacy-gsi.rc
new file mode 100644
index 0000000..00dd576
--- /dev/null
+++ b/target/product/vndk/init.legacy-gsi.rc
@@ -0,0 +1,3 @@
+# If ro.vndk.version is not defined, import init.vndk-27.rc.
+import /system/etc/init/gsi/init.vndk-${ro.vndk.version:-27}.rc
+
diff --git a/tools/fs_config/Android.mk b/tools/fs_config/Android.mk
index cb32b9e..bf5e171 100644
--- a/tools/fs_config/Android.mk
+++ b/tools/fs_config/Android.mk
@@ -163,10 +163,11 @@
 LOCAL_MODULE_CLASS := ETC
 LOCAL_INSTALLED_MODULE_STEM := fs_config_dirs
 include $(BUILD_SYSTEM)/base_rules.mk
+$(LOCAL_BUILT_MODULE): PRIVATE_PARTITION_LIST := $(fs_config_generate_extra_partition_list)
 $(LOCAL_BUILT_MODULE): $(fs_config_generate_bin)
 	@mkdir -p $(dir $@)
-	$< -D $(if $(fs_config_generate_extra_partition_list), \
-	   -P '$(subst $(space),$(comma),$(addprefix -,$(fs_config_generate_extra_partition_list)))') \
+	$< -D $(if $(PRIVATE_PARTITION_LIST), \
+	   -P '$(subst $(space),$(comma),$(addprefix -,$(PRIVATE_PARTITION_LIST)))') \
 	   -o $@
 
 ##################################
@@ -179,10 +180,11 @@
 LOCAL_MODULE_CLASS := ETC
 LOCAL_INSTALLED_MODULE_STEM := fs_config_files
 include $(BUILD_SYSTEM)/base_rules.mk
+$(LOCAL_BUILT_MODULE): PRIVATE_PARTITION_LIST := $(fs_config_generate_extra_partition_list)
 $(LOCAL_BUILT_MODULE): $(fs_config_generate_bin)
 	@mkdir -p $(dir $@)
-	$< -F $(if $(fs_config_generate_extra_partition_list), \
-	   -P '$(subst $(space),$(comma),$(addprefix -,$(fs_config_generate_extra_partition_list)))') \
+	$< -F $(if $(PRIVATE_PARTITION_LIST), \
+	   -P '$(subst $(space),$(comma),$(addprefix -,$(PRIVATE_PARTITION_LIST)))') \
 	   -o $@
 
 ifneq ($(filter vendor,$(fs_config_generate_extra_partition_list)),)
diff --git a/tools/releasetools/add_img_to_target_files.py b/tools/releasetools/add_img_to_target_files.py
index ddc50be..139d257 100755
--- a/tools/releasetools/add_img_to_target_files.py
+++ b/tools/releasetools/add_img_to_target_files.py
@@ -260,11 +260,7 @@
     args = OPTIONS.info_dict.get("avb_dtbo_add_hash_footer_args")
     if args and args.strip():
       cmd.extend(shlex.split(args))
-    proc = common.Run(cmd)
-    output, _ = proc.communicate()
-    assert proc.returncode == 0, \
-        "Failed to call 'avbtool add_hash_footer' for {}:\n{}".format(
-            img.name, output)
+    common.RunAndCheckOutput(cmd)
 
   img.Write()
   return img.name
@@ -330,6 +326,12 @@
       image_blocks_key = what + "_image_blocks"
       info_dict[image_blocks_key] = int(image_size) / 4096 - 1
 
+  use_dynamic_size = (
+      info_dict.get("use_dynamic_partition_size") == "true" and
+      what in shlex.split(info_dict.get("dynamic_partition_list", "").strip()))
+  if use_dynamic_size:
+    info_dict.update(build_image.GlobalDictFromImageProp(image_props, what))
+
 
 def AddUserdata(output_zip):
   """Create a userdata image and store it in output_zip.
@@ -457,10 +459,7 @@
         assert found, 'Failed to find {}'.format(image_path)
     cmd.extend(split_args)
 
-  proc = common.Run(cmd)
-  stdoutdata, _ = proc.communicate()
-  assert proc.returncode == 0, \
-      "avbtool make_vbmeta_image failed:\n{}".format(stdoutdata)
+  common.RunAndCheckOutput(cmd)
   img.Write()
   return img.name
 
@@ -487,11 +486,7 @@
   args = OPTIONS.info_dict.get("board_bpt_make_table_args")
   if args:
     cmd.extend(shlex.split(args))
-
-  proc = common.Run(cmd)
-  stdoutdata, _ = proc.communicate()
-  assert proc.returncode == 0, \
-      "bpttool make_table failed:\n{}".format(stdoutdata)
+  common.RunAndCheckOutput(cmd)
 
   img.Write()
   bpt.Write()
@@ -606,10 +601,7 @@
 
   temp_care_map = common.MakeTempFile(prefix="caremap-", suffix=".pb")
   care_map_gen_cmd = ["care_map_generator", temp_care_map_text, temp_care_map]
-  proc = common.Run(care_map_gen_cmd)
-  output, _ = proc.communicate()
-  assert proc.returncode == 0, \
-      "Failed to generate the care_map proto message:\n{}".format(output)
+  common.RunAndCheckOutput(care_map_gen_cmd)
 
   care_map_path = "META/care_map.pb"
   if output_zip and care_map_path not in output_zip.namelist():
@@ -656,18 +648,71 @@
   """Create a super_empty.img and store it in output_zip."""
 
   img = OutputFile(output_zip, OPTIONS.input_tmp, "IMAGES", "super_empty.img")
-  cmd = [OPTIONS.info_dict.get('lpmake')]
-  cmd += shlex.split(OPTIONS.info_dict.get('lpmake_args').strip())
+  cmd = [OPTIONS.info_dict['lpmake']]
+  cmd += shlex.split(OPTIONS.info_dict['lpmake_args'].strip())
   cmd += ['--output', img.name]
-
-  proc = common.Run(cmd)
-  stdoutdata, _ = proc.communicate()
-  assert proc.returncode == 0, \
-      "lpmake tool failed:\n{}".format(stdoutdata)
+  common.RunAndCheckOutput(cmd)
 
   img.Write()
 
 
+def AddSuperSplit(output_zip):
+  """Create split super_*.img and store it in output_zip."""
+
+  def GetPartitionSizeFromImage(img):
+    try:
+      simg = sparse_img.SparseImage(img)
+      return simg.blocksize * simg.total_blocks
+    except ValueError:
+      return os.path.getsize(img)
+
+  def TransformPartitionArg(arg):
+    lst = arg.split(':')
+    # Because --auto-slot-suffixing for A/B, there is no need to remove suffix.
+    name = lst[0]
+    if name + '_size' in OPTIONS.info_dict:
+      size = str(OPTIONS.info_dict[name + '_size'])
+      logger.info("Using %s_size = %s", name, size)
+    else:
+      size = str(GetPartitionSizeFromImage(
+          os.path.join(OPTIONS.input_tmp, "IMAGES", '{}.img'.format(name))))
+      logger.info("Using size of prebuilt %s = %s", name, size)
+    lst[2] = size
+    return ':'.join(lst)
+
+  def GetLpmakeArgsWithSizes():
+    lpmake_args = shlex.split(OPTIONS.info_dict['lpmake_args'].strip())
+
+    for i, arg in enumerate(lpmake_args):
+      if arg == '--partition':
+        assert i + 1 < len(lpmake_args), \
+          'lpmake_args has --partition without value'
+        lpmake_args[i + 1] = TransformPartitionArg(lpmake_args[i + 1])
+
+    return lpmake_args
+
+  outdir = OutputFile(output_zip, OPTIONS.input_tmp, "OTA", "")
+  cmd = [OPTIONS.info_dict['lpmake']]
+  cmd += GetLpmakeArgsWithSizes()
+
+  source = OPTIONS.info_dict.get('dynamic_partition_list', '').strip()
+  if source:
+    cmd.append('--sparse')
+    for name in shlex.split(source):
+      img = os.path.join(OPTIONS.input_tmp, "IMAGES", '{}.img'.format(name))
+      # Because --auto-slot-suffixing for A/B, there is no need to add suffix.
+      cmd += ['--image', '{}={}'.format(name, img)]
+
+  cmd += ['--output', outdir.name]
+
+  common.RunAndCheckOutput(cmd)
+
+  for dev in OPTIONS.info_dict['super_block_devices'].strip().split():
+    img = OutputFile(output_zip, OPTIONS.input_tmp, "OTA",
+                     "super_" + dev + ".img")
+    img.Write()
+
+
 def ReplaceUpdatedFiles(zip_filename, files_list):
   """Updates all the ZIP entries listed in files_list.
 
@@ -861,10 +906,15 @@
     banner("vbmeta")
     AddVBMeta(output_zip, partitions, "vbmeta", vbmeta_partitions)
 
-  if OPTIONS.info_dict.get("super_size"):
+  if OPTIONS.info_dict.get("lpmake_args"):
     banner("super_empty")
     AddSuperEmpty(output_zip)
 
+    if OPTIONS.info_dict.get("dynamic_partition_retrofit") == "true":
+      banner("super split images")
+      AddSuperSplit(output_zip)
+    # TODO(b/119322123): Add super.img to target_files for non-retrofit
+
   banner("radio")
   ab_partitions_txt = os.path.join(OPTIONS.input_tmp, "META",
                                    "ab_partitions.txt")
diff --git a/tools/releasetools/build_image.py b/tools/releasetools/build_image.py
index 6d22694..9612499 100755
--- a/tools/releasetools/build_image.py
+++ b/tools/releasetools/build_image.py
@@ -221,8 +221,8 @@
             adjusted_blocks))
 
 
-def BuildImage(in_dir, prop_dict, out_file, target_out=None):
-  """Builds an image for the files under in_dir and writes it to out_file.
+def BuildImageMkfs(in_dir, prop_dict, out_file, target_out, fs_config):
+  """Builds a pure image for the files under in_dir and writes it to out_file.
 
   Args:
     in_dir: Path to input directory.
@@ -233,77 +233,15 @@
         points to the /system directory under PRODUCT_OUT. fs_config (the one
         under system/core/libcutils) reads device specific FS config files from
         there.
+    fs_config: The fs_config file that drives the prototype
 
   Raises:
     BuildImageError: On build image failures.
   """
-  original_mount_point = prop_dict["mount_point"]
-  in_dir, fs_config = SetUpInDirAndFsConfig(in_dir, prop_dict)
-
   build_command = []
   fs_type = prop_dict.get("fs_type", "")
   run_e2fsck = False
 
-  fs_spans_partition = True
-  if fs_type.startswith("squash"):
-    fs_spans_partition = False
-
-  # Get a builder for creating an image that's to be verified by Verified Boot,
-  # or None if not applicable.
-  verity_image_builder = verity_utils.CreateVerityImageBuilder(prop_dict)
-
-  if (prop_dict.get("use_dynamic_partition_size") == "true" and
-      "partition_size" not in prop_dict):
-    # If partition_size is not defined, use output of `du' + reserved_size.
-    size = GetDiskUsage(in_dir)
-    logger.info(
-        "The tree size of %s is %d MB.", in_dir, size // BYTES_IN_MB)
-    # If not specified, give us 16MB margin for GetDiskUsage error ...
-    size += int(prop_dict.get("partition_reserved_size", BYTES_IN_MB * 16))
-    # Round this up to a multiple of 4K so that avbtool works
-    size = common.RoundUpTo4K(size)
-    if verity_image_builder:
-      size = verity_image_builder.CalculateDynamicPartitionSize(size)
-    prop_dict["partition_size"] = str(size)
-    if fs_type.startswith("ext"):
-      if "extfs_inode_count" not in prop_dict:
-        prop_dict["extfs_inode_count"] = str(GetInodeUsage(in_dir))
-      logger.info(
-          "First Pass based on estimates of %d MB and %s inodes.",
-          size // BYTES_IN_MB, prop_dict["extfs_inode_count"])
-      prop_dict["mount_point"] = original_mount_point
-      BuildImage(in_dir, prop_dict, out_file, target_out)
-      fs_dict = GetFilesystemCharacteristics(out_file)
-      block_size = int(fs_dict.get("Block size", "4096"))
-      free_size = int(fs_dict.get("Free blocks", "0")) * block_size
-      reserved_size = int(prop_dict.get("partition_reserved_size", 0))
-      if free_size <= reserved_size:
-        logger.info(
-            "Not worth reducing image %d <= %d.", free_size, reserved_size)
-      else:
-        size -= free_size + (free_size // 60)
-        size += reserved_size
-        if block_size <= 4096:
-          size = common.RoundUpTo4K(size)
-        else:
-          size = ((size + block_size - 1) // block_size) * block_size
-      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"))
-      prop_dict["extfs_inode_count"] = str(inodes)
-      prop_dict["partition_size"] = str(size)
-      logger.info(
-          "Allocating %d Inodes for %s.", inodes, out_file)
-    logger.info(
-        "Allocating %d MB for %s.", size // BYTES_IN_MB, out_file)
-
-  prop_dict["image_size"] = prop_dict["partition_size"]
-
-  # Adjust the image size to make room for the hashes if this is to be verified.
-  if verity_image_builder:
-    max_image_size = verity_image_builder.CalculateMaxImageSize()
-    prop_dict["image_size"] = str(max_image_size)
-
   if fs_type.startswith("ext"):
     build_command = [prop_dict["ext_mkuserimg"]]
     if "extfs_sparse_flag" in prop_dict:
@@ -396,8 +334,8 @@
       logger.exception("Failed to compute disk usage with du")
       du_str = "unknown"
     print(
-        "Out of space? The tree size of {} is {}, with reserved space of {} "
-        "bytes ({} MB).".format(
+        "Out of space? Out of inodes? The tree size of {} is {}, "
+        "with reserved space of {} bytes ({} MB).".format(
             in_dir, du_str,
             int(prop_dict.get("partition_reserved_size", 0)),
             int(prop_dict.get("partition_reserved_size", 0)) // BYTES_IN_MB))
@@ -410,6 +348,114 @@
             int(prop_dict["partition_size"]) // BYTES_IN_MB))
     raise
 
+  if run_e2fsck and prop_dict.get("skip_fsck") != "true":
+    unsparse_image = UnsparseImage(out_file, replace=False)
+
+    # Run e2fsck on the inflated image file
+    e2fsck_command = ["e2fsck", "-f", "-n", unsparse_image]
+    try:
+      common.RunAndCheckOutput(e2fsck_command)
+    finally:
+      os.remove(unsparse_image)
+
+  return mkfs_output
+
+
+def BuildImage(in_dir, prop_dict, out_file, target_out=None):
+  """Builds an image for the files under in_dir and writes it to out_file.
+
+  Args:
+    in_dir: Path to input directory.
+    prop_dict: A property dict that contains info like partition size. Values
+        will be updated with computed values.
+    out_file: The output image file.
+    target_out: Path to the TARGET_OUT directory as in Makefile. It actually
+        points to the /system directory under PRODUCT_OUT. fs_config (the one
+        under system/core/libcutils) reads device specific FS config files from
+        there.
+
+  Raises:
+    BuildImageError: On build image failures.
+  """
+  in_dir, fs_config = SetUpInDirAndFsConfig(in_dir, prop_dict)
+
+  build_command = []
+  fs_type = prop_dict.get("fs_type", "")
+
+  fs_spans_partition = True
+  if fs_type.startswith("squash"):
+    fs_spans_partition = False
+
+  # Get a builder for creating an image that's to be verified by Verified Boot,
+  # or None if not applicable.
+  verity_image_builder = verity_utils.CreateVerityImageBuilder(prop_dict)
+
+  if (prop_dict.get("use_dynamic_partition_size") == "true" and
+      "partition_size" not in prop_dict):
+    # If partition_size is not defined, use output of `du' + reserved_size.
+    size = GetDiskUsage(in_dir)
+    logger.info(
+        "The tree size of %s is %d MB.", in_dir, size // BYTES_IN_MB)
+    # If not specified, give us 16MB margin for GetDiskUsage error ...
+    reserved_size = int(prop_dict.get("partition_reserved_size", BYTES_IN_MB * 16))
+    partition_headroom = int(prop_dict.get("partition_headroom", 0))
+    if fs_type.startswith("ext4") and partition_headroom > reserved_size:
+      reserved_size = partition_headroom
+    size += reserved_size
+    # Round this up to a multiple of 4K so that avbtool works
+    size = common.RoundUpTo4K(size)
+    if fs_type.startswith("ext"):
+      prop_dict["partition_size"] = str(size)
+      prop_dict["image_size"] = str(size)
+      if "extfs_inode_count" not in prop_dict:
+        prop_dict["extfs_inode_count"] = str(GetInodeUsage(in_dir))
+      logger.info(
+          "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)
+      os.remove(out_file)
+      block_size = int(fs_dict.get("Block size", "4096"))
+      free_size = int(fs_dict.get("Free blocks", "0")) * block_size
+      reserved_size = int(prop_dict.get("partition_reserved_size", 0))
+      partition_headroom = int(fs_dict.get("partition_headroom", 0))
+      if fs_type.startswith("ext4") and partition_headroom > reserved_size:
+        reserved_size = partition_headroom
+      if free_size <= reserved_size:
+        logger.info(
+            "Not worth reducing image %d <= %d.", free_size, reserved_size)
+      else:
+        size -= free_size
+        size += reserved_size
+        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"))
+      prop_dict["extfs_inode_count"] = str(inodes)
+      prop_dict["partition_size"] = str(size)
+      logger.info(
+          "Allocating %d Inodes for %s.", inodes, out_file)
+    if verity_image_builder:
+      size = verity_image_builder.CalculateDynamicPartitionSize(size)
+    prop_dict["partition_size"] = str(size)
+    logger.info(
+        "Allocating %d MB for %s.", size // BYTES_IN_MB, out_file)
+
+  prop_dict["image_size"] = prop_dict["partition_size"]
+
+  # Adjust the image size to make room for the hashes if this is to be verified.
+  if verity_image_builder:
+    max_image_size = verity_image_builder.CalculateMaxImageSize()
+    prop_dict["image_size"] = str(max_image_size)
+
+  mkfs_output = BuildImageMkfs(in_dir, prop_dict, out_file, target_out, fs_config)
+
   # Check if there's enough headroom space available for ext4 image.
   if "partition_headroom" in prop_dict and fs_type.startswith("ext4"):
     CheckHeadroom(mkfs_output, prop_dict)
@@ -421,16 +467,6 @@
   if verity_image_builder:
     verity_image_builder.Build(out_file)
 
-  if run_e2fsck and prop_dict.get("skip_fsck") != "true":
-    unsparse_image = UnsparseImage(out_file, replace=False)
-
-    # Run e2fsck on the inflated image file
-    e2fsck_command = ["e2fsck", "-f", "-n", unsparse_image]
-    try:
-      common.RunAndCheckOutput(e2fsck_command)
-    finally:
-      os.remove(unsparse_image)
-
 
 def ImagePropFromGlobalDict(glob_dict, mount_point):
   """Build an image property dictionary from the global dictionary.
diff --git a/tools/releasetools/ota_from_target_files.py b/tools/releasetools/ota_from_target_files.py
index 2264655..7ec8ad8 100755
--- a/tools/releasetools/ota_from_target_files.py
+++ b/tools/releasetools/ota_from_target_files.py
@@ -64,6 +64,13 @@
       Generate an OTA package that will wipe the user data partition when
       installed.
 
+  --retrofit_dynamic_partitions
+      Generates an OTA package that updates a device to support dynamic
+      partitions (default False). This flag is implied when generating
+      an incremental OTA where the base build does not support dynamic
+      partitions but the target build does. For A/B, when this flag is set,
+      --skip_postinstall is implied.
+
 Non-A/B OTA specific options
 
   -b  (--binary) <file>
@@ -213,11 +220,14 @@
 OPTIONS.extracted_input = None
 OPTIONS.key_passwords = []
 OPTIONS.skip_postinstall = False
+OPTIONS.retrofit_dynamic_partitions = False
 
 
 METADATA_NAME = 'META-INF/com/android/metadata'
 POSTINSTALL_CONFIG = 'META/postinstall_config.txt'
+DYNAMIC_PARTITION_INFO = 'META/dynamic_partitions_info.txt'
 UNZIP_PATTERN = ['IMAGES/*', 'META/*']
+SUPER_SPLIT_PATTERN = ['OTA/super_*.img']
 
 
 class BuildInfo(object):
@@ -1717,6 +1727,60 @@
   return target_file
 
 
+def GetTargetFilesZipForRetrofitDynamicPartitions(input_file,
+                                                  super_block_devices):
+  """Returns a target-files.zip for retrofitting dynamic partitions.
+
+  This allows brillo_update_payload to generate an OTA based on the exact
+  bits on the block devices. Postinstall is disabled.
+
+  Args:
+    input_file: The input target-files.zip filename.
+    super_block_devices: The list of super block devices
+
+  Returns:
+    The filename of target-files.zip with *.img replaced with super_*.img for
+    each block device in super_block_devices.
+  """
+  assert super_block_devices, "No super_block_devices are specified."
+
+  replace = {'OTA/super_{}.img'.format(dev): 'IMAGES/{}.img'.format(dev)
+             for dev in super_block_devices}
+
+  target_file = common.MakeTempFile(prefix="targetfiles-", suffix=".zip")
+  shutil.copyfile(input_file, target_file)
+
+  with zipfile.ZipFile(input_file, 'r') as input_zip:
+    namelist = input_zip.namelist()
+
+  # Always skip postinstall for a retrofit update.
+  to_delete = [POSTINSTALL_CONFIG]
+
+  # Delete dynamic_partitions_info.txt so that brillo_update_payload thinks this
+  # is a regular update on devices without dynamic partitions support.
+  to_delete += [DYNAMIC_PARTITION_INFO]
+
+  # Remove the existing partition images as well as the map files.
+  to_delete += replace.values()
+  to_delete += ['IMAGES/{}.map'.format(dev) for dev in super_block_devices]
+
+  common.ZipDelete(target_file, to_delete)
+
+  input_tmp = common.UnzipTemp(input_file, SUPER_SPLIT_PATTERN)
+  target_zip = zipfile.ZipFile(target_file, 'a', allowZip64=True)
+
+  # Write super_{foo}.img as {foo}.img.
+  for src, dst in replace.items():
+    assert src in namelist, \
+          'Missing {} in {}; {} cannot be written'.format(src, input_file, dst)
+    unzipped_file = os.path.join(input_tmp, *src.split('/'))
+    common.ZipWrite(target_zip, unzipped_file, arcname=dst)
+
+  common.ZipClose(target_zip)
+
+  return target_file
+
+
 def WriteABOTAPackageWithBrilloScript(target_file, output_file,
                                       source_file=None):
   """Generates an Android OTA package that has A/B update payload."""
@@ -1738,7 +1802,10 @@
   # Metadata to comply with Android OTA package format.
   metadata = GetPackageMetadata(target_info, source_info)
 
-  if OPTIONS.skip_postinstall:
+  if OPTIONS.retrofit_dynamic_partitions:
+    target_file = GetTargetFilesZipForRetrofitDynamicPartitions(
+        target_file, target_info.get("super_block_devices").strip().split())
+  elif OPTIONS.skip_postinstall:
     target_file = GetTargetFilesZipWithoutPostinstallConfig(target_file)
 
   # Generate payload.
@@ -1870,6 +1937,8 @@
       OPTIONS.extracted_input = a
     elif o == "--skip_postinstall":
       OPTIONS.skip_postinstall = True
+    elif o == "--retrofit_dynamic_partitions":
+      OPTIONS.retrofit_dynamic_partitions = True
     else:
       return False
     return True
@@ -1900,6 +1969,7 @@
                                  "payload_signer_args=",
                                  "extracted_input_target_files=",
                                  "skip_postinstall",
+                                 "retrofit_dynamic_partitions",
                              ], extra_option_handler=option_handler)
 
   if len(args) != 2:
@@ -1943,6 +2013,23 @@
   # Load OEM dicts if provided.
   OPTIONS.oem_dicts = _LoadOemDicts(OPTIONS.oem_source)
 
+  # Assume retrofitting dynamic partitions when base build does not set
+  # use_dynamic_partitions but target build does.
+  if (OPTIONS.source_info_dict and
+      OPTIONS.source_info_dict.get("use_dynamic_partitions") != "true" and
+      OPTIONS.target_info_dict.get("use_dynamic_partitions") == "true"):
+    if OPTIONS.target_info_dict.get("dynamic_partition_retrofit") != "true":
+      raise common.ExternalError(
+          "Expect to generate incremental OTA for retrofitting dynamic "
+          "partitions, but dynamic_partition_retrofit is not set in target "
+          "build.")
+    logger.info("Implicitly generating retrofit incremental OTA.")
+    OPTIONS.retrofit_dynamic_partitions = True
+
+  # Skip postinstall for retrofitting dynamic partitions.
+  if OPTIONS.retrofit_dynamic_partitions:
+    OPTIONS.skip_postinstall = True
+
   ab_update = OPTIONS.info_dict.get("ab_update") == "true"
 
   # Use the default key to sign the package if not specified with package_key.
diff --git a/tools/releasetools/test_add_img_to_target_files.py b/tools/releasetools/test_add_img_to_target_files.py
index ad22b72..d2a274d 100644
--- a/tools/releasetools/test_add_img_to_target_files.py
+++ b/tools/releasetools/test_add_img_to_target_files.py
@@ -40,11 +40,7 @@
 
     # Calls an external binary to convert the proto message.
     cmd = ["care_map_generator", "--parse_proto", file_name, text_file]
-    proc = common.Run(cmd)
-    output, _ = proc.communicate()
-    self.assertEqual(
-        0, proc.returncode,
-        "Failed to run care_map_generator:\n{}".format(output))
+    common.RunAndCheckOutput(cmd)
 
     with open(text_file, 'r') as verify_fp:
       plain_text = verify_fp.read()
diff --git a/tools/releasetools/test_verity_utils.py b/tools/releasetools/test_verity_utils.py
index 41f234b..e0607c8 100644
--- a/tools/releasetools/test_verity_utils.py
+++ b/tools/releasetools/test_verity_utils.py
@@ -16,6 +16,7 @@
 
 """Unittests for verity_utils.py."""
 
+import copy
 import math
 import os.path
 import random
@@ -165,14 +166,153 @@
     self.assertEqual(self.expected_root_hash, info.root_hash)
 
 
+class VerifiedBootVersion1VerityImageBuilderTest(ReleaseToolsTestCase):
+
+  DEFAULT_PARTITION_SIZE = 4096 * 1024
+  DEFAULT_PROP_DICT = {
+      'partition_size': str(DEFAULT_PARTITION_SIZE),
+      'verity': 'true',
+      'verity_block_device': '/dev/block/system',
+      'verity_key': os.path.join(get_testdata_dir(), 'testkey'),
+      'verity_fec': 'true',
+      'verity_signer_cmd': 'verity_signer',
+  }
+
+  def test_init(self):
+    prop_dict = copy.deepcopy(self.DEFAULT_PROP_DICT)
+    verity_image_builder = CreateVerityImageBuilder(prop_dict)
+    self.assertIsNotNone(verity_image_builder)
+    self.assertEqual(1, verity_image_builder.version)
+
+  def test_init_MissingProps(self):
+    prop_dict = copy.deepcopy(self.DEFAULT_PROP_DICT)
+    del prop_dict['verity']
+    self.assertIsNone(CreateVerityImageBuilder(prop_dict))
+
+    prop_dict = copy.deepcopy(self.DEFAULT_PROP_DICT)
+    del prop_dict['verity_block_device']
+    self.assertIsNone(CreateVerityImageBuilder(prop_dict))
+
+  def test_CalculateMaxImageSize(self):
+    verity_image_builder = CreateVerityImageBuilder(self.DEFAULT_PROP_DICT)
+    size = verity_image_builder.CalculateMaxImageSize()
+    self.assertLess(size, self.DEFAULT_PARTITION_SIZE)
+
+    # Same result by explicitly passing the partition size.
+    self.assertEqual(
+        verity_image_builder.CalculateMaxImageSize(),
+        verity_image_builder.CalculateMaxImageSize(
+            self.DEFAULT_PARTITION_SIZE))
+
+  @staticmethod
+  def _BuildAndVerify(prop, verify_key):
+    verity_image_builder = CreateVerityImageBuilder(prop)
+    image_size = verity_image_builder.CalculateMaxImageSize()
+
+    # Build the sparse image with verity metadata.
+    input_dir = common.MakeTempDir()
+    image = common.MakeTempFile(suffix='.img')
+    cmd = ['mkuserimg_mke2fs', input_dir, image, 'ext4', '/system',
+           str(image_size), '-j', '0', '-s']
+    common.RunAndCheckOutput(cmd)
+    verity_image_builder.Build(image)
+
+    # Verify the verity metadata.
+    cmd = ['verity_verifier', image, '-mincrypt', verify_key]
+    common.RunAndCheckOutput(cmd)
+
+  def test_Build(self):
+    self._BuildAndVerify(
+        self.DEFAULT_PROP_DICT,
+        os.path.join(get_testdata_dir(), 'testkey_mincrypt'))
+
+  def test_Build_SanityCheck(self):
+    # A sanity check for the test itself: the image shouldn't be verifiable
+    # with wrong key.
+    self.assertRaises(
+        common.ExternalError,
+        self._BuildAndVerify,
+        self.DEFAULT_PROP_DICT,
+        os.path.join(get_testdata_dir(), 'verity_mincrypt'))
+
+  def test_Build_FecDisabled(self):
+    prop_dict = copy.deepcopy(self.DEFAULT_PROP_DICT)
+    del prop_dict['verity_fec']
+    self._BuildAndVerify(
+        prop_dict,
+        os.path.join(get_testdata_dir(), 'testkey_mincrypt'))
+
+  def test_Build_SquashFs(self):
+    verity_image_builder = CreateVerityImageBuilder(self.DEFAULT_PROP_DICT)
+    verity_image_builder.CalculateMaxImageSize()
+
+    # Build the sparse image with verity metadata.
+    input_dir = common.MakeTempDir()
+    image = common.MakeTempFile(suffix='.img')
+    cmd = ['mksquashfsimage.sh', input_dir, image, '-s']
+    common.RunAndCheckOutput(cmd)
+    verity_image_builder.PadSparseImage(image)
+    verity_image_builder.Build(image)
+
+    # Verify the verity metadata.
+    cmd = ["verity_verifier", image, '-mincrypt',
+           os.path.join(get_testdata_dir(), 'testkey_mincrypt')]
+    common.RunAndCheckOutput(cmd)
+
+
 class VerifiedBootVersion2VerityImageBuilderTest(ReleaseToolsTestCase):
 
-  def setUp(self):
+  DEFAULT_PROP_DICT = {
+      'partition_size': str(4096 * 1024),
+      'partition_name': 'system',
+      'avb_avbtool': 'avbtool',
+      'avb_hashtree_enable': 'true',
+      'avb_add_hashtree_footer_args': '',
+  }
+
+  def test_init(self):
+    prop_dict = copy.deepcopy(self.DEFAULT_PROP_DICT)
+    verity_image_builder = CreateVerityImageBuilder(prop_dict)
+    self.assertIsNotNone(verity_image_builder)
+    self.assertEqual(2, verity_image_builder.version)
+
+  def test_init_MissingProps(self):
+    prop_dict = copy.deepcopy(self.DEFAULT_PROP_DICT)
+    del prop_dict['avb_hashtree_enable']
+    verity_image_builder = CreateVerityImageBuilder(prop_dict)
+    self.assertIsNone(verity_image_builder)
+
+  def test_Build(self):
+    prop_dict = copy.deepcopy(self.DEFAULT_PROP_DICT)
+    verity_image_builder = CreateVerityImageBuilder(prop_dict)
+    self.assertIsNotNone(verity_image_builder)
+    self.assertEqual(2, verity_image_builder.version)
+
+    input_dir = common.MakeTempDir()
+    image_dir = common.MakeTempDir()
+    system_image = os.path.join(image_dir, 'system.img')
+    system_image_size = verity_image_builder.CalculateMaxImageSize()
+    cmd = ['mkuserimg_mke2fs', input_dir, system_image, 'ext4', '/system',
+           str(system_image_size), '-j', '0', '-s']
+    common.RunAndCheckOutput(cmd)
+    verity_image_builder.Build(system_image)
+
+    # Additionally make vbmeta image so that we can verify with avbtool.
+    vbmeta_image = os.path.join(image_dir, 'vbmeta.img')
+    cmd = ['avbtool', 'make_vbmeta_image', '--include_descriptors_from_image',
+           system_image, '--output', vbmeta_image]
+    common.RunAndCheckOutput(cmd)
+
+    # Verify the verity metadata.
+    cmd = ['avbtool', 'verify_image', '--image', vbmeta_image]
+    common.RunAndCheckOutput(cmd)
+
+  def _test_CalculateMinPartitionSize_SetUp(self):
     # To test CalculateMinPartitionSize(), by using 200MB to 2GB image size.
     #   -  51200 = 200MB * 1024 * 1024 / 4096
     #   - 524288 = 2GB * 1024 * 1024 * 1024 / 4096
-    self._image_sizes = [BLOCK_SIZE * random.randint(51200, 524288) + offset
-                         for offset in range(BLOCK_SIZE)]
+    image_sizes = [BLOCK_SIZE * random.randint(51200, 524288) + offset
+                   for offset in range(BLOCK_SIZE)]
 
     prop_dict = {
         'partition_size': None,
@@ -181,17 +321,19 @@
         'avb_hashtree_enable': 'true',
         'avb_add_hashtree_footer_args': None,
     }
-    self.builder = CreateVerityImageBuilder(prop_dict)
-    self.assertEqual(2, self.builder.version)
+    builder = CreateVerityImageBuilder(prop_dict)
+    self.assertEqual(2, builder.version)
+    return image_sizes, builder
 
   def test_CalculateMinPartitionSize_LinearFooterSize(self):
     """Tests with footer size which is linear to partition size."""
-    for image_size in self._image_sizes:
+    image_sizes, builder = self._test_CalculateMinPartitionSize_SetUp()
+    for image_size in image_sizes:
       for ratio in 0.95, 0.56, 0.22:
         expected_size = common.RoundUpTo4K(int(math.ceil(image_size / ratio)))
         self.assertEqual(
             expected_size,
-            self.builder.CalculateMinPartitionSize(
+            builder.CalculateMinPartitionSize(
                 image_size, lambda x, ratio=ratio: int(x * ratio)))
 
   def test_AVBCalcMinPartitionSize_SlowerGrowthFooterSize(self):
@@ -202,8 +344,9 @@
       # Minus footer size to return max image size.
       return partition_size - int(math.pow(partition_size, 0.95))
 
-    for image_size in self._image_sizes:
-      min_partition_size = self.builder.CalculateMinPartitionSize(
+    image_sizes, builder = self._test_CalculateMinPartitionSize_SetUp()
+    for image_size in image_sizes:
+      min_partition_size = builder.CalculateMinPartitionSize(
           image_size, _SizeCalculator)
       # Checks min_partition_size can accommodate image_size.
       self.assertGreaterEqual(
@@ -223,8 +366,9 @@
       # footer size grows faster than partition size.
       return int(math.pow(partition_size, 0.95))
 
-    for image_size in self._image_sizes:
-      min_partition_size = self.builder.CalculateMinPartitionSize(
+    image_sizes, builder = self._test_CalculateMinPartitionSize_SetUp()
+    for image_size in image_sizes:
+      min_partition_size = builder.CalculateMinPartitionSize(
           image_size, _SizeCalculator)
       # Checks min_partition_size can accommodate image_size.
       self.assertGreaterEqual(
diff --git a/tools/releasetools/testdata/verity_mincrypt b/tools/releasetools/testdata/verity_mincrypt
new file mode 100644
index 0000000..31982d9
--- /dev/null
+++ b/tools/releasetools/testdata/verity_mincrypt
Binary files differ
diff --git a/tools/releasetools/validate_target_files.py b/tools/releasetools/validate_target_files.py
index 1cc4a60..ae8253d 100755
--- a/tools/releasetools/validate_target_files.py
+++ b/tools/releasetools/validate_target_files.py
@@ -311,31 +311,9 @@
   if info_dict.get("avb_enable") == "true":
     logging.info('Verifying Verified Boot 2.0 (AVB) images...')
 
-    key = options['verity_key']
-    if key is None:
-      key = info_dict['avb_vbmeta_key_path']
-
-    # avbtool verifies all the images that have descriptors listed in vbmeta.
-    image = os.path.join(input_tmp, 'IMAGES', 'vbmeta.img')
-    cmd = ['avbtool', 'verify_image', '--image', image, '--key', key]
-
-    # Append the args for chained partitions if any.
-    for partition in common.AVB_PARTITIONS:
-      key_name = 'avb_' + partition + '_key_path'
-      if info_dict.get(key_name) is not None:
-        chained_partition_arg = common.GetAvbChainedPartitionArg(
-            partition, info_dict, options[key_name])
-        cmd.extend(["--expected_chain_partition", chained_partition_arg])
-
-    proc = common.Run(cmd)
-    stdoutdata, _ = proc.communicate()
-    assert proc.returncode == 0, \
-        'Failed to verify {} with verity_verifier (key: {}):\n{}'.format(
-            image, key, stdoutdata)
-
-    logging.info(
-        'Verified %s with avbtool (key: %s):\n%s', image, key,
-        stdoutdata.rstrip())
+    # Temporarily disable the verification for AVB-signed images, due to the
+    # dependency on PyCrypto in `avbtool verify_image` (Bug: 119624011).
+    logging.info('Temporarily disabled due to b/119624011')
 
 
 def main():
diff --git a/tools/releasetools/verity_utils.py b/tools/releasetools/verity_utils.py
index 0a3dcec..3a58755 100644
--- a/tools/releasetools/verity_utils.py
+++ b/tools/releasetools/verity_utils.py
@@ -301,7 +301,7 @@
     """Creates an image that is verifiable using dm-verity.
 
     Args:
-      out_file: the location to write the verifiable image at
+      out_file: the output image.
 
     Returns:
       AssertionError: On invalid partition sizes.