diff --git a/core/json.mk b/common/json.mk
similarity index 100%
rename from core/json.mk
rename to common/json.mk
diff --git a/core/Makefile b/core/Makefile
index 5adb239..bb4fe0e 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -2158,9 +2158,9 @@
 ## Files under out dir will be rejected to prevent possible conflicts with other rules.
 ifneq (,$(BUILD_PLATFORM_ZIP))
 pdk_odex_javalibs := $(strip $(foreach m,$(DEXPREOPT.MODULES.JAVA_LIBRARIES),\
-  $(if $(filter $(DEXPREOPT.$(m).INSTALLED),$(ALL_DEFAULT_INSTALLED_MODULES)),$(m))))
+  $(if $(filter $(DEXPREOPT.$(m).INSTALLED_STRIPPED),$(ALL_DEFAULT_INSTALLED_MODULES)),$(m))))
 pdk_odex_apps := $(strip $(foreach m,$(DEXPREOPT.MODULES.APPS),\
-  $(if $(filter $(DEXPREOPT.$(m).INSTALLED),$(ALL_DEFAULT_INSTALLED_MODULES)),$(m))))
+  $(if $(filter $(DEXPREOPT.$(m).INSTALLED_STRIPPED),$(ALL_DEFAULT_INSTALLED_MODULES)),$(m))))
 pdk_classes_dex := $(strip \
   $(foreach m,$(pdk_odex_javalibs),$(call intermediates-dir-for,JAVA_LIBRARIES,$(m),,COMMON)/javalib.jar) \
   $(foreach m,$(pdk_odex_apps),$(call intermediates-dir-for,APPS,$(m))/package.dex.apk))
@@ -2446,6 +2446,9 @@
       $(ALL_PDK_FUSION_FILES)) \
     $(PDK_FUSION_SYMLINK_STAMP)
 
+# system_other dex files are installed as a side-effect of installing system image files
+INTERNAL_SYSTEMOTHERIMAGE_FILES += $(INTERNAL_SYSTEMIMAGE_FILES)
+
 INSTALLED_FILES_FILE_SYSTEMOTHER := $(PRODUCT_OUT)/installed-files-system-other.txt
 INSTALLED_FILES_JSON_SYSTEMOTHER := $(INSTALLED_FILES_FILE_SYSTEMOTHER:.txt=.json)
 $(INSTALLED_FILES_FILE_SYSTEMOTHER): .KATI_IMPLICIT_OUTPUTS := $(INSTALLED_FILES_JSON_SYSTEMOTHER)
diff --git a/core/binary.mk b/core/binary.mk
index 427f689..c3878f9 100644
--- a/core/binary.mk
+++ b/core/binary.mk
@@ -1571,6 +1571,9 @@
 $(notice_target): | $(installed_static_library_notice_file_targets)
 $(LOCAL_INSTALLED_MODULE): | $(notice_target)
 
+$(notice_target): | $(installed_static_library_notice_file_targets)
+$(LOCAL_INSTALLED_MODULE): | $(notice_target)
+
 # Default is -fno-rtti.
 ifeq ($(strip $(LOCAL_RTTI_FLAG)),)
 LOCAL_RTTI_FLAG := -fno-rtti
diff --git a/core/clear_vars.mk b/core/clear_vars.mk
index 799425f..0fce502 100644
--- a/core/clear_vars.mk
+++ b/core/clear_vars.mk
@@ -256,6 +256,7 @@
 LOCAL_SHARED_ANDROID_LIBRARIES:=
 LOCAL_SHARED_LIBRARIES:=
 LOCAL_SOONG_AAR :=
+LOCAL_SOONG_BUILT_INSTALLED :=
 LOCAL_SOONG_BUNDLE :=
 LOCAL_SOONG_CLASSES_JAR :=
 LOCAL_SOONG_DEX_JAR :=
@@ -278,7 +279,6 @@
 LOCAL_STATIC_JAVA_AAR_LIBRARIES:=
 LOCAL_STATIC_JAVA_LIBRARIES:=
 LOCAL_STATIC_LIBRARIES:=
-LOCAL_STRIP_DEX:=
 LOCAL_STRIP_MODULE:=
 LOCAL_SYSTEM_SHARED_LIBRARIES:=none
 LOCAL_TARGET_REQUIRED_MODULES:=
diff --git a/core/config.mk b/core/config.mk
index b7c2ed1..9d77fe5 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -120,6 +120,8 @@
 
 include $(BUILD_SYSTEM_COMMON)/strings.mk
 
+include $(BUILD_SYSTEM_COMMON)/json.mk
+
 # Various mappings to avoid hard-coding paths all over the place
 include $(BUILD_SYSTEM)/pathmap.mk
 
diff --git a/core/dex_preopt.mk b/core/dex_preopt.mk
index 92ed970..59346ed 100644
--- a/core/dex_preopt.mk
+++ b/core/dex_preopt.mk
@@ -3,31 +3,7 @@
 #
 ####################################
 
-# list of boot classpath jars for dexpreopt
-DEXPREOPT_BOOT_JARS := $(subst $(space),:,$(PRODUCT_BOOT_JARS))
-DEXPREOPT_BOOT_JARS_MODULES := $(PRODUCT_BOOT_JARS)
-PRODUCT_BOOTCLASSPATH := $(subst $(space),:,$(foreach m,$(DEXPREOPT_BOOT_JARS_MODULES),/system/framework/$(m).jar))
-
-PRODUCT_SYSTEM_SERVER_CLASSPATH := $(subst $(space),:,$(foreach m,$(PRODUCT_SYSTEM_SERVER_JARS),/system/framework/$(m).jar))
-
-DEXPREOPT_BUILD_DIR := $(OUT_DIR)
-DEXPREOPT_PRODUCT_DIR_FULL_PATH := $(PRODUCT_OUT)/dex_bootjars
-DEXPREOPT_PRODUCT_DIR := $(patsubst $(DEXPREOPT_BUILD_DIR)/%,%,$(DEXPREOPT_PRODUCT_DIR_FULL_PATH))
-DEXPREOPT_BOOT_JAR_DIR := system/framework
-DEXPREOPT_BOOT_JAR_DIR_FULL_PATH := $(DEXPREOPT_PRODUCT_DIR_FULL_PATH)/$(DEXPREOPT_BOOT_JAR_DIR)
-
-# The default value for LOCAL_DEX_PREOPT
-DEX_PREOPT_DEFAULT ?= true
-
-# The default filter for which files go into the system_other image (if it is
-# being used). To bundle everything one should set this to '%'
-SYSTEM_OTHER_ODEX_FILTER ?= \
-    app/% \
-    priv-app/% \
-    product_services/app/% \
-    product_services/priv-app/% \
-    product/app/% \
-    product/priv-app/% \
+include $(BUILD_SYSTEM)/dex_preopt_config.mk
 
 # Method returning whether the install path $(1) should be for system_other.
 # Under SANITIZE_LITE, we do not want system_other. Just put things under /data/asan.
@@ -37,35 +13,6 @@
 install-on-system-other = $(filter-out $(PRODUCT_DEXPREOPT_SPEED_APPS) $(PRODUCT_SYSTEM_SERVER_APPS),$(basename $(notdir $(filter $(foreach f,$(SYSTEM_OTHER_ODEX_FILTER),$(TARGET_OUT)/$(f)),$(1)))))
 endif
 
-# The default values for pre-opting: always preopt PIC.
-# Conditional to building on linux, as dex2oat currently does not work on darwin.
-ifeq ($(HOST_OS),linux)
-  WITH_DEXPREOPT ?= true
-  ifeq (eng,$(TARGET_BUILD_VARIANT))
-    # Don't strip for quick development turnarounds.
-    DEX_PREOPT_DEFAULT := nostripping
-    # For an eng build only pre-opt the boot image and system server. This gives reasonable performance
-    # and still allows a simple workflow: building in frameworks/base and syncing.
-    WITH_DEXPREOPT_BOOT_IMG_AND_SYSTEM_SERVER_ONLY ?= true
-  endif
-  # Add mini-debug-info to the boot classpath unless explicitly asked not to.
-  ifneq (false,$(WITH_DEXPREOPT_DEBUG_INFO))
-    PRODUCT_DEX_PREOPT_BOOT_FLAGS += --generate-mini-debug-info
-  endif
-
-  # Non eng linux builds must have preopt enabled so that system server doesn't run as interpreter
-  # only. b/74209329
-  ifeq (,$(filter eng, $(TARGET_BUILD_VARIANT)))
-    ifneq (true,$(WITH_DEXPREOPT))
-      ifneq (true,$(WITH_DEXPREOPT_BOOT_IMG_AND_SYSTEM_SERVER_ONLY))
-        $(call pretty-error, DEXPREOPT must be enabled for user and userdebug builds)
-      endif
-    endif
-  endif
-endif
-
-GLOBAL_DEXPREOPT_FLAGS :=
-
 # Special rules for building stripped boot jars that override java_library.mk rules
 
 # $(1): boot jar module name
@@ -83,19 +30,6 @@
 
 include $(BUILD_SYSTEM)/dex_preopt_libart.mk
 
-# Define dexpreopt-one-file based on current default runtime.
-# $(1): the input .jar or .apk file
-# $(2): the output .odex file
-define dexpreopt-one-file
-$(call dex2oat-one-file,$(1),$(2))
-endef
-
-DEXPREOPT_ONE_FILE_DEPENDENCY_TOOLS := $(DEX2OAT_DEPENDENCY)
-DEXPREOPT_ONE_FILE_DEPENDENCY_BUILT_BOOT_PREOPT := $(DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME)
-ifdef TARGET_2ND_ARCH
-$(TARGET_2ND_ARCH_VAR_PREFIX)DEXPREOPT_ONE_FILE_DEPENDENCY_BUILT_BOOT_PREOPT := $($(TARGET_2ND_ARCH_VAR_PREFIX)DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME)
-endif  # TARGET_2ND_ARCH
-
 # === hiddenapi rules ===
 
 hiddenapi_stubs_jar = $(call intermediates-dir-for,JAVA_LIBRARIES,$(1),,COMMON)/javalib.jar
@@ -149,6 +83,8 @@
 	$(call commit-change-for-toc,$(INTERNAL_PLATFORM_HIDDENAPI_PUBLIC_LIST))
 	$(call commit-change-for-toc,$(INTERNAL_PLATFORM_HIDDENAPI_PRIVATE_LIST))
 
+
+
 ifeq ($(PRODUCT_DIST_BOOT_AND_SYSTEM_JARS),true)
 boot_profile_jars_zip := $(PRODUCT_OUT)/boot_profile_jars.zip
 all_boot_jars := \
diff --git a/core/dex_preopt_config.mk b/core/dex_preopt_config.mk
new file mode 100644
index 0000000..cc45689
--- /dev/null
+++ b/core/dex_preopt_config.mk
@@ -0,0 +1,200 @@
+DEX_PREOPT_CONFIG := $(PRODUCT_OUT)/dexpreopt.config
+
+# list of boot classpath jars for dexpreopt
+DEXPREOPT_BOOT_JARS := $(subst $(space),:,$(PRODUCT_BOOT_JARS))
+DEXPREOPT_BOOT_JARS_MODULES := $(PRODUCT_BOOT_JARS)
+PRODUCT_BOOTCLASSPATH := $(subst $(space),:,$(foreach m,$(DEXPREOPT_BOOT_JARS_MODULES),/system/framework/$(m).jar))
+
+PRODUCT_SYSTEM_SERVER_CLASSPATH := $(subst $(space),:,$(foreach m,$(PRODUCT_SYSTEM_SERVER_JARS),/system/framework/$(m).jar))
+
+DEXPREOPT_BUILD_DIR := $(OUT_DIR)
+DEXPREOPT_PRODUCT_DIR_FULL_PATH := $(PRODUCT_OUT)/dex_bootjars
+DEXPREOPT_PRODUCT_DIR := $(patsubst $(DEXPREOPT_BUILD_DIR)/%,%,$(DEXPREOPT_PRODUCT_DIR_FULL_PATH))
+DEXPREOPT_BOOT_JAR_DIR := system/framework
+DEXPREOPT_BOOT_JAR_DIR_FULL_PATH := $(DEXPREOPT_PRODUCT_DIR_FULL_PATH)/$(DEXPREOPT_BOOT_JAR_DIR)
+
+DEFAULT_DEX_PREOPT_BUILT_IMAGE_LOCATION := $(DEXPREOPT_BOOT_JAR_DIR_FULL_PATH)/boot.art
+DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME := $(DEXPREOPT_BOOT_JAR_DIR_FULL_PATH)/$(DEX2OAT_TARGET_ARCH)/boot.art
+
+ifdef TARGET_2ND_ARCH
+  $(TARGET_2ND_ARCH_VAR_PREFIX)DEFAULT_DEX_PREOPT_BUILT_IMAGE_LOCATION := $(DEXPREOPT_BOOT_JAR_DIR_FULL_PATH)/boot.art
+  $(TARGET_2ND_ARCH_VAR_PREFIX)DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME := $(DEXPREOPT_BOOT_JAR_DIR_FULL_PATH)/$($(TARGET_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_ARCH)/boot.art
+endif
+
+# The default value for LOCAL_DEX_PREOPT
+DEX_PREOPT_DEFAULT ?= true
+
+# The default filter for which files go into the system_other image (if it is
+# being used). To bundle everything one should set this to '%'
+SYSTEM_OTHER_ODEX_FILTER ?= \
+    app/% \
+    priv-app/% \
+    product_services/app/% \
+    product_services/priv-app/% \
+    product/app/% \
+    product/priv-app/% \
+
+# The default values for pre-opting: always preopt PIC.
+# Conditional to building on linux, as dex2oat currently does not work on darwin.
+ifeq ($(HOST_OS),linux)
+  WITH_DEXPREOPT ?= true
+  ifeq (eng,$(TARGET_BUILD_VARIANT))
+    # Don't strip for quick development turnarounds.
+    DEX_PREOPT_DEFAULT := nostripping
+    # For an eng build only pre-opt the boot image and system server. This gives reasonable performance
+    # and still allows a simple workflow: building in frameworks/base and syncing.
+    WITH_DEXPREOPT_BOOT_IMG_AND_SYSTEM_SERVER_ONLY ?= true
+  endif
+  # Add mini-debug-info to the boot classpath unless explicitly asked not to.
+  ifneq (false,$(WITH_DEXPREOPT_DEBUG_INFO))
+    PRODUCT_DEX_PREOPT_BOOT_FLAGS += --generate-mini-debug-info
+  endif
+
+  # Non eng linux builds must have preopt enabled so that system server doesn't run as interpreter
+  # only. b/74209329
+  ifeq (,$(filter eng, $(TARGET_BUILD_VARIANT)))
+    ifneq (true,$(WITH_DEXPREOPT))
+      ifneq (true,$(WITH_DEXPREOPT_BOOT_IMG_AND_SYSTEM_SERVER_ONLY))
+        $(call pretty-error, DEXPREOPT must be enabled for user and userdebug builds)
+      endif
+    endif
+  endif
+endif
+
+# Default to debug version to help find bugs.
+# Set USE_DEX2OAT_DEBUG to false for only building non-debug versions.
+ifeq ($(USE_DEX2OAT_DEBUG),false)
+DEX2OAT := $(HOST_OUT_EXECUTABLES)/dex2oat$(HOST_EXECUTABLE_SUFFIX)
+else
+DEX2OAT := $(HOST_OUT_EXECUTABLES)/dex2oatd$(HOST_EXECUTABLE_SUFFIX)
+endif
+
+DEX2OAT_DEPENDENCY += $(DEX2OAT)
+
+# Use the first preloaded-classes file in PRODUCT_COPY_FILES.
+PRELOADED_CLASSES := $(call word-colon,1,$(firstword \
+    $(filter %system/etc/preloaded-classes,$(PRODUCT_COPY_FILES))))
+
+# Use the first dirty-image-objects file in PRODUCT_COPY_FILES.
+DIRTY_IMAGE_OBJECTS := $(call word-colon,1,$(firstword \
+    $(filter %system/etc/dirty-image-objects,$(PRODUCT_COPY_FILES))))
+
+define get-product-default-property
+$(strip \
+  $(eval _prop := $(patsubst $(1)=%,%,$(filter $(1)=%,$(PRODUCT_DEFAULT_PROPERTY_OVERRIDES))))\
+  $(if $(_prop),$(_prop),$(patsubst $(1)=%,%,$(filter $(1)=%,$(PRODUCT_SYSTEM_DEFAULT_PROPERTIES)))))
+endef
+
+DEX2OAT_IMAGE_XMS := $(call get-product-default-property,dalvik.vm.image-dex2oat-Xms)
+DEX2OAT_IMAGE_XMX := $(call get-product-default-property,dalvik.vm.image-dex2oat-Xmx)
+DEX2OAT_XMS := $(call get-product-default-property,dalvik.vm.dex2oat-Xms)
+DEX2OAT_XMX := $(call get-product-default-property,dalvik.vm.dex2oat-Xmx)
+
+ifeq ($(TARGET_ARCH),$(filter $(TARGET_ARCH),mips mips64))
+# MIPS specific overrides.
+# For MIPS the ART image is loaded at a lower address. This causes issues
+# with the image overlapping with memory on the host cross-compiling and
+# building the image. We therefore limit the Xmx value. This isn't done
+# via a property as we want the larger Xmx value if we're running on a
+# MIPS device.
+DEX2OAT_XMX := 128m
+endif
+
+ifeq ($(WRITE_SOONG_VARIABLES),true)
+
+  $(call json_start)
+
+  $(call add_json_bool, DefaultNoStripping,                 $(filter nostripping,$(DEX_PREOPT_DEFAULT)))
+  $(call add_json_list, DisablePreoptModules,               $(DEXPREOPT_DISABLED_MODULES))
+  $(call add_json_bool, OnlyPreoptBootImageAndSystemServer, $(filter true,$(WITH_DEXPREOPT_BOOT_IMG_AND_SYSTEM_SERVER_ONLY)))
+  $(call add_json_bool, DontUncompressPrivAppsDex,          $(filter true,$(DONT_UNCOMPRESS_PRIV_APPS_DEXS)))
+  $(call add_json_list, ModulesLoadedByPrivilegedModules,   $(PRODUCT_LOADED_BY_PRIVILEGED_MODULES))
+  $(call add_json_bool, HasSystemOther,                     $(BOARD_USES_SYSTEM_OTHER_ODEX))
+  $(call add_json_list, PatternsOnSystemOther,              $(SYSTEM_OTHER_ODEX_FILTER))
+  $(call add_json_bool, DisableGenerateProfile,             $(filter false,$(WITH_DEX_PREOPT_GENERATE_PROFILE)))
+  $(call add_json_list, BootJars,                           $(DEXPREOPT_BOOT_JARS_MODULES))
+  $(call add_json_list, SystemServerJars,                   $(PRODUCT_SYSTEM_SERVER_JARS))
+  $(call add_json_list, SystemServerApps,                   $(PRODUCT_SYSTEM_SERVER_APPS))
+  $(call add_json_list, SpeedApps,                          $(PRODUCT_DEXPREOPT_SPEED_APPS))
+  $(call add_json_list, PreoptFlags,                        $(PRODUCT_DEX_PREOPT_DEFAULT_FLAGS))
+  $(call add_json_str,  DefaultCompilerFilter,              $(PRODUCT_DEX_PREOPT_DEFAULT_COMPILER_FILTER))
+  $(call add_json_str,  SystemServerCompilerFilter,         $(PRODUCT_SYSTEM_SERVER_COMPILER_FILTER))
+  $(call add_json_bool, GenerateDmFiles,                    $(PRODUCT_DEX_PREOPT_GENERATE_DM_FILES))
+  $(call add_json_bool, NoDebugInfo,                        $(filter false,$(WITH_DEXPREOPT_DEBUG_INFO)))
+  $(call add_json_bool, AlwaysSystemServerDebugInfo,        $(filter true,$(PRODUCT_SYSTEM_SERVER_DEBUG_INFO)))
+  $(call add_json_bool, NeverSystemServerDebugInfo,         $(filter false,$(PRODUCT_SYSTEM_SERVER_DEBUG_INFO)))
+  $(call add_json_bool, AlwaysOtherDebugInfo,               $(filter true,$(PRODUCT_OTHER_JAVA_DEBUG_INFO)))
+  $(call add_json_bool, NeverOtherDebugInfo,                $(filter false,$(PRODUCT_OTHER_JAVA_DEBUG_INFO)))
+  $(call add_json_list, MissingUsesLibraries,               $(INTERNAL_PLATFORM_MISSING_USES_LIBRARIES))
+  $(call add_json_bool, IsEng,                              $(filter eng,$(TARGET_BUILD_VARIANT)))
+  $(call add_json_bool, SanitizeLite,                       $(SANITIZE_LITE))
+  $(call add_json_bool, DefaultAppImages,                   $(WITH_DEX_PREOPT_APP_IMAGE))
+  $(call add_json_str,  Dex2oatXmx,                         $(DEX2OAT_XMX))
+  $(call add_json_str,  Dex2oatXms,                         $(DEX2OAT_XMS))
+  $(call add_json_str,  EmptyDirectory,                     $(OUT_DIR)/empty)
+
+  $(call add_json_map,  DefaultDexPreoptImageLocation)
+  $(call add_json_str,  $(TARGET_ARCH), $(DEFAULT_DEX_PREOPT_BUILT_IMAGE_LOCATION))
+  ifdef TARGET_2ND_ARCH
+    $(call add_json_str, $(TARGET_2ND_ARCH), $($(TARGET_2ND_ARCH_VAR_PREFIX)DEFAULT_DEX_PREOPT_BUILT_IMAGE_LOCATION))
+  endif
+  $(call end_json_map)
+
+  $(call add_json_map,  CpuVariant)
+  $(call add_json_str,  $(TARGET_ARCH), $(DEX2OAT_TARGET_CPU_VARIANT))
+  ifdef TARGET_2ND_ARCH
+    $(call add_json_str, $(TARGET_2ND_ARCH), $($(TARGET_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_CPU_VARIANT))
+  endif
+  $(call end_json_map)
+
+  $(call add_json_map,  InstructionSetFeatures)
+  $(call add_json_str,  $(TARGET_ARCH), $(DEX2OAT_TARGET_INSTRUCTION_SET_FEATURES))
+  ifdef TARGET_2ND_ARCH
+    $(call add_json_str, $(TARGET_2ND_ARCH), $($(TARGET_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_INSTRUCTION_SET_FEATURES))
+  endif
+  $(call end_json_map)
+
+  $(call add_json_map,  Tools)
+  $(call add_json_str,  Profman,                            $(PROFMAN))
+  $(call add_json_str,  Dex2oat,                            $(DEX2OAT))
+  $(call add_json_str,  Aapt,                               $(AAPT))
+  $(call add_json_str,  SoongZip,                           $(SOONG_ZIP))
+  $(call add_json_str,  Zip2zip,                            $(ZIP2ZIP))
+  $(call add_json_str,  VerifyUsesLibraries,                $(BUILD_SYSTEM)/verify_uses_libraries.sh)
+  $(call add_json_str,  ConstructContext,                   $(BUILD_SYSTEM)/construct_context.sh)
+  $(call end_json_map)
+
+  $(call json_end)
+
+  $(shell mkdir -p $(dir $(DEX_PREOPT_CONFIG)))
+  $(file >$(DEX_PREOPT_CONFIG).tmp,$(json_contents))
+
+  $(shell \
+    if ! cmp -s $(DEX_PREOPT_CONFIG).tmp $(DEX_PREOPT_CONFIG); then \
+      mv $(DEX_PREOPT_CONFIG).tmp $(DEX_PREOPT_CONFIG); \
+    else \
+      rm $(DEX_PREOPT_CONFIG).tmp; \
+    fi)
+endif
+
+# Dummy rule to create dexpreopt.config, it will already have been created
+# by the $(file) call above, but a rule needs to exist to keep the dangling
+# rule check happy.
+$(DEX_PREOPT_CONFIG):
+	@#empty
+
+DEXPREOPT_GEN_DEPS := \
+  $(PROFMAN) \
+  $(DEX2OAT) \
+  $(AAPT) \
+  $(SOONG_ZIP) \
+  $(ZIP2ZIP) \
+  $(BUILD_SYSTEM)/verify_uses_libraries.sh \
+  $(BUILD_SYSTEM)/construct_context.sh \
+
+DEXPREOPT_GEN_DEPS += $(DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME)
+ifdef TARGET_2ND_ARCH
+  ifneq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+    DEXPREOPT_GEN_DEPS += $($(TARGET_2ND_ARCH_VAR_PREFIX)DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME)
+  endif
+endif
diff --git a/core/dex_preopt_libart.mk b/core/dex_preopt_libart.mk
index 1c9ef64..631db0a 100644
--- a/core/dex_preopt_libart.mk
+++ b/core/dex_preopt_libart.mk
@@ -3,77 +3,9 @@
 #
 ####################################
 
-# Default to debug version to help find bugs.
-# Set USE_DEX2OAT_DEBUG to false for only building non-debug versions.
-ifeq ($(USE_DEX2OAT_DEBUG),false)
-DEX2OAT := $(HOST_OUT_EXECUTABLES)/dex2oat$(HOST_EXECUTABLE_SUFFIX)
-else
-DEX2OAT := $(HOST_OUT_EXECUTABLES)/dex2oatd$(HOST_EXECUTABLE_SUFFIX)
-endif
-
-DEX2OAT_DEPENDENCY += $(DEX2OAT)
-
-# Use the first preloaded-classes file in PRODUCT_COPY_FILES.
-PRELOADED_CLASSES := $(call word-colon,1,$(firstword \
-    $(filter %system/etc/preloaded-classes,$(PRODUCT_COPY_FILES))))
-
-# Use the first dirty-image-objects file in PRODUCT_COPY_FILES.
-DIRTY_IMAGE_OBJECTS := $(call word-colon,1,$(firstword \
-    $(filter %system/etc/dirty-image-objects,$(PRODUCT_COPY_FILES))))
-
-define get-product-default-property
-$(strip \
-  $(eval _prop := $(patsubst $(1)=%,%,$(filter $(1)=%,$(PRODUCT_DEFAULT_PROPERTY_OVERRIDES))))\
-  $(if $(_prop),$(_prop),$(patsubst $(1)=%,%,$(filter $(1)=%,$(PRODUCT_SYSTEM_DEFAULT_PROPERTIES)))))
-endef
-
-DEX2OAT_IMAGE_XMS := $(call get-product-default-property,dalvik.vm.image-dex2oat-Xms)
-DEX2OAT_IMAGE_XMX := $(call get-product-default-property,dalvik.vm.image-dex2oat-Xmx)
-DEX2OAT_XMS := $(call get-product-default-property,dalvik.vm.dex2oat-Xms)
-DEX2OAT_XMX := $(call get-product-default-property,dalvik.vm.dex2oat-Xmx)
-
-ifeq ($(TARGET_ARCH),$(filter $(TARGET_ARCH),mips mips64))
-# MIPS specific overrides.
-# For MIPS the ART image is loaded at a lower address. This causes issues
-# with the image overlapping with memory on the host cross-compiling and
-# building the image. We therefore limit the Xmx value. This isn't done
-# via a property as we want the larger Xmx value if we're running on a
-# MIPS device.
-DEX2OAT_XMX := 128m
-endif
-
 ########################################################################
 # The full system boot classpath
 
-# Returns the path to the .odex file
-# $(1): the arch name.
-# $(2): the full path (including file name) of the corresponding .jar or .apk.
-define get-odex-file-path
-$(dir $(2))oat/$(1)/$(basename $(notdir $(2))).odex
-endef
-
-# Returns the full path to the installed .odex file.
-# This handles BOARD_USES_SYSTEM_OTHER_ODEX to install odex files into another
-# partition.
-# $(1): the arch name.
-# $(2): the full install path (including file name) of the corresponding .apk.
-ifeq ($(BOARD_USES_SYSTEM_OTHER_ODEX),true)
-define get-odex-installed-file-path
-$(if $(call install-on-system-other, $(2)),
-  $(call get-odex-file-path,$(1),$(patsubst $(TARGET_OUT)/%,$(TARGET_OUT_SYSTEM_OTHER)/%,$(2))),
-  $(call get-odex-file-path,$(1),$(2)))
-endef
-else
-get-odex-installed-file-path = $(get-odex-file-path)
-endif
-
-# Returns the path to the image file (such as "/system/framework/<arch>/boot.art"
-# $(1): the arch name (such as "arm")
-# $(2): the image location (such as "/system/framework/boot.art")
-define get-image-file-path
-$(dir $(2))$(1)/$(notdir $(2))
-endef
-
 LIBART_TARGET_BOOT_JARS := $(DEXPREOPT_BOOT_JARS_MODULES)
 LIBART_TARGET_BOOT_DEX_LOCATIONS := $(foreach jar,$(LIBART_TARGET_BOOT_JARS),/$(DEXPREOPT_BOOT_JAR_DIR)/$(jar).jar)
 LIBART_TARGET_BOOT_DEX_FILES := $(foreach jar,$(LIBART_TARGET_BOOT_JARS),$(call intermediates-dir-for,JAVA_LIBRARIES,$(jar),,COMMON)/javalib.jar)
@@ -164,51 +96,3 @@
 	$(hide) ln -sf /$(DEXPREOPT_BOOT_JAR_DIR)/$(notdir $@) $(SECOND_ARCH_DIR)$(notdir $@)
 
 my_2nd_arch_prefix :=
-
-########################################################################
-# For a single jar or APK
-
-# $(1): the input .jar or .apk file
-# $(2): the output .odex file
-# In the case where LOCAL_ENFORCE_USES_LIBRARIES is true, PRIVATE_DEX2OAT_CLASS_LOADER_CONTEXT
-# contains the normalized path list of the libraries. This makes it easier to conditionally prepend
-# org.apache.http.legacy.impl based on the SDK level if required.
-#
-# Pass --avoid-storing-invocation to make the output deterministics between
-# different products that may have different paths on the command line.
-define dex2oat-one-file
-$(hide) rm -f $(2)
-$(hide) mkdir -p $(dir $(2))
-stored_class_loader_context_libs=$(PRIVATE_DEX2OAT_STORED_CLASS_LOADER_CONTEXT_LIBS) && \
-class_loader_context_arg=--class-loader-context=$(PRIVATE_DEX2OAT_CLASS_LOADER_CONTEXT) && \
-class_loader_context=$(PRIVATE_DEX2OAT_CLASS_LOADER_CONTEXT) && \
-stored_class_loader_context_arg="" && \
-uses_library_names="$(PRIVATE_USES_LIBRARY_NAMES)" && \
-optional_uses_library_names="$(PRIVATE_OPTIONAL_USES_LIBRARY_NAMES)" && \
-aapt_binary="$(AAPT)" && \
-$(if $(filter true,$(PRIVATE_ENFORCE_USES_LIBRARIES)), \
-source build/make/core/verify_uses_libraries.sh "$(1)" && \
-source build/make/core/construct_context.sh "$(PRIVATE_CONDITIONAL_USES_LIBRARIES_HOST)" "$(PRIVATE_CONDITIONAL_USES_LIBRARIES_TARGET)" && \
-,) \
-ANDROID_LOG_TAGS="*:e" $(DEX2OAT) \
-	--avoid-storing-invocation \
-	--runtime-arg -Xms$(DEX2OAT_XMS) --runtime-arg -Xmx$(DEX2OAT_XMX) \
-	$${class_loader_context_arg} \
-	$${stored_class_loader_context_arg} \
-	--boot-image=$(PRIVATE_DEX_PREOPT_IMAGE_LOCATION) \
-	--dex-file=$(1) \
-	--dex-location=$(PRIVATE_DEX_LOCATION) \
-	--oat-file=$(2) \
-	--android-root=$(PRODUCT_OUT)/system \
-	--instruction-set=$($(PRIVATE_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_ARCH) \
-	--instruction-set-variant=$($(PRIVATE_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_CPU_VARIANT) \
-	--instruction-set-features=$($(PRIVATE_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_INSTRUCTION_SET_FEATURES) \
-	--no-generate-debug-info --generate-build-id \
-	--abort-on-hard-verifier-error \
-	--force-determinism \
-	--no-inline-from=core-oj.jar \
-	$(PRIVATE_DEX_PREOPT_FLAGS) \
-	$(PRIVATE_ART_FILE_PREOPT_FLAGS) \
-	$(PRIVATE_PROFILE_PREOPT_FLAGS) \
-	$(GLOBAL_DEXPREOPT_FLAGS)
-endef
diff --git a/core/dex_preopt_libart_boot.mk b/core/dex_preopt_libart_boot.mk
index 70a934c..156ce02 100644
--- a/core/dex_preopt_libart_boot.mk
+++ b/core/dex_preopt_libart_boot.mk
@@ -20,8 +20,6 @@
 # 2ND_DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME=out/target/product/generic_x86_64/dex_bootjars/system/framework/x86/boot.art
 # 2ND_LIBART_BOOT_IMAGE=/system/framework/x86/boot.art
 
-$(my_2nd_arch_prefix)DEFAULT_DEX_PREOPT_BUILT_IMAGE_LOCATION := $(DEXPREOPT_BOOT_JAR_DIR_FULL_PATH)/boot.art
-$(my_2nd_arch_prefix)DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME := $(DEXPREOPT_BOOT_JAR_DIR_FULL_PATH)/$($(my_2nd_arch_prefix)DEX2OAT_TARGET_ARCH)/boot.art
 $(my_2nd_arch_prefix)LIBART_BOOT_IMAGE_FILENAME := /$(DEXPREOPT_BOOT_JAR_DIR)/$($(my_2nd_arch_prefix)DEX2OAT_TARGET_ARCH)/boot.art
 
 # The .oat with symbols
@@ -114,7 +112,7 @@
 		--no-inline-from=core-oj.jar \
 		--abort-on-hard-verifier-error \
 		--abort-on-soft-verifier-error \
-		$(PRODUCT_DEX_PREOPT_BOOT_FLAGS) $(GLOBAL_DEXPREOPT_FLAGS) $(ART_BOOT_IMAGE_EXTRA_ARGS) \
+		$(PRODUCT_DEX_PREOPT_BOOT_FLAGS) $(ART_BOOT_IMAGE_EXTRA_ARGS) \
 		|| ( echo "$(DEX2OAT_FAILURE_MESSAGE)" ; false )
 
 endif
diff --git a/core/dex_preopt_odex_install.mk b/core/dex_preopt_odex_install.mk
index 6a892e2..d1fb4e8 100644
--- a/core/dex_preopt_odex_install.mk
+++ b/core/dex_preopt_odex_install.mk
@@ -25,24 +25,6 @@
 LOCAL_DEX_PREOPT := $(strip $(LOCAL_DEX_PREOPT))
 ifndef LOCAL_DEX_PREOPT # LOCAL_DEX_PREOPT undefined
   LOCAL_DEX_PREOPT := $(DEX_PREOPT_DEFAULT)
-
-  ifeq ($(filter $(TARGET_OUT)/%,$(my_module_path)),) # Not installed to system.img.
-    # Default to nostripping for non system preopt (enables preopt).
-    # Don't strip in case the oat/vdex version in system ROM doesn't match the one in other
-    # partitions. It needs to be able to fall back to the APK for that case.
-    LOCAL_DEX_PREOPT := nostripping
-  endif
-
-  ifneq (,$(LOCAL_APK_LIBRARIES)) # LOCAL_APK_LIBRARIES not empty
-    LOCAL_DEX_PREOPT := nostripping
-  endif
-endif
-
-ifeq (nostripping,$(LOCAL_DEX_PREOPT))
-  LOCAL_DEX_PREOPT := true
-  LOCAL_STRIP_DEX :=
-else
-  LOCAL_STRIP_DEX := true
 endif
 
 ifeq (false,$(LOCAL_DEX_PREOPT))
@@ -90,38 +72,8 @@
   endif
 endif
 
-ifeq ($(LOCAL_DEX_PREOPT),true)
-  # Don't strip with dexes we explicitly uncompress (dexopt will not store the dex code).
-  ifeq ($(LOCAL_UNCOMPRESS_DEX),true)
-    LOCAL_STRIP_DEX :=
-  endif  # LOCAL_UNCOMPRESS_DEX
-
-  # system_other isn't there for an OTA, so don't strip
-  # if module is on system, and odex is on system_other.
-  ifeq ($(BOARD_USES_SYSTEM_OTHER_ODEX),true)
-    ifneq ($(call install-on-system-other, $(my_module_path)),)
-      LOCAL_STRIP_DEX :=
-    endif  # install-on-system-other
-  endif  # BOARD_USES_SYSTEM_OTHER_ODEX
-
-  # We also don't strip if all dexs are uncompressed (dexopt will not store the dex code),
-  # but that requires to inspect the source file, which is too early at this point (as we
-  # don't know if the source file will actually be used).
-  # See dexpreopt-remove-classes.dex.
-endif  # LOCAL_DEX_PREOPT
-
-built_odex :=
-built_vdex :=
-built_art :=
-installed_odex :=
-installed_vdex :=
-installed_art :=
-built_installed_odex :=
-built_installed_vdex :=
-built_installed_art :=
 my_process_profile :=
 my_profile_is_text_listing :=
-my_generate_dm :=
 
 ifeq (false,$(WITH_DEX_PREOPT_GENERATE_PROFILE))
   LOCAL_DEX_PREOPT_GENERATE_PROFILE := false
@@ -135,7 +87,7 @@
 
   ifneq (,$(wildcard $(LOCAL_DEX_PREOPT_PROFILE)))
     my_process_profile := true
-    my_profile_is_text_listing := false
+    my_profile_is_text_listing :=
   endif
 else
   my_process_profile := $(LOCAL_DEX_PREOPT_GENERATE_PROFILE)
@@ -144,273 +96,72 @@
 endif
 
 ifeq (true,$(my_process_profile))
-
-  ifeq (,$(LOCAL_DEX_PREOPT_APP_IMAGE))
-    LOCAL_DEX_PREOPT_APP_IMAGE := true
-  endif
-
   ifndef LOCAL_DEX_PREOPT_PROFILE
     $(call pretty-error,Must have specified class listing (LOCAL_DEX_PREOPT_PROFILE))
   endif
   ifeq (,$(dex_preopt_profile_src_file))
     $(call pretty-error, Internal error: dex_preopt_profile_src_file must be set)
   endif
-  my_built_profile := $(dir $(LOCAL_BUILT_MODULE))/profile.prof
-  my_dex_location := $(patsubst $(PRODUCT_OUT)%,%,$(LOCAL_INSTALLED_MODULE))
-  # Remove compressed APK extension.
-  my_dex_location := $(patsubst %.gz,%,$(my_dex_location))
-  $(my_built_profile): PRIVATE_BUILT_MODULE := $(dex_preopt_profile_src_file)
-  $(my_built_profile): PRIVATE_DEX_LOCATION := $(my_dex_location)
-  $(my_built_profile): PRIVATE_SOURCE_CLASSES := $(LOCAL_DEX_PREOPT_PROFILE)
-  $(my_built_profile): $(LOCAL_DEX_PREOPT_PROFILE)
-  $(my_built_profile): $(PROFMAN)
-  $(my_built_profile): $(dex_preopt_profile_src_file)
-  ifeq (true,$(my_profile_is_text_listing))
-    # The profile is a test listing of classes (used for framework jars).
-    # We need to generate the actual binary profile before being able to compile.
-    $(my_built_profile):
-	$(hide) mkdir -p $(dir $@)
-	ANDROID_LOG_TAGS="*:e" $(PROFMAN) \
-		--create-profile-from=$(PRIVATE_SOURCE_CLASSES) \
-		--apk=$(PRIVATE_BUILT_MODULE) \
-		--dex-location=$(PRIVATE_DEX_LOCATION) \
-		--reference-profile-file=$@
-  else
-    # The profile is binary profile (used for apps). Run it through profman to
-    # ensure the profile keys match the apk.
-    $(my_built_profile):
-	$(hide) mkdir -p $(dir $@)
-	touch $@
-	ANDROID_LOG_TAGS="*:i" $(PROFMAN) \
-	  --copy-and-update-profile-key \
-		--profile-file=$(PRIVATE_SOURCE_CLASSES) \
-		--apk=$(PRIVATE_BUILT_MODULE) \
-		--dex-location=$(PRIVATE_DEX_LOCATION) \
-		--reference-profile-file=$@ \
-	|| echo "Profile out of date for $(PRIVATE_BUILT_MODULE)"
-  endif
-
-  my_profile_is_text_listing :=
-  dex_preopt_profile_src_file :=
-
-  # Remove compressed APK extension.
-  my_installed_profile := $(patsubst %.gz,%,$(LOCAL_INSTALLED_MODULE)).prof
-
-  # my_installed_profile := $(LOCAL_INSTALLED_MODULE).prof
-  $(eval $(call copy-one-file,$(my_built_profile),$(my_installed_profile)))
-  build_installed_profile:=$(my_built_profile):$(my_installed_profile)
-else
-  build_installed_profile:=
-  my_installed_profile :=
 endif
 
+# If LOCAL_ENFORCE_USES_LIBRARIES is not set, default to true if either of LOCAL_USES_LIBRARIES or
+# LOCAL_OPTIONAL_USES_LIBRARIES are specified.
+ifeq (,$(LOCAL_ENFORCE_USES_LIBRARIES))
+  # Will change the default to true unconditionally in the future.
+  ifneq (,$(LOCAL_OPTIONAL_USES_LIBRARIES))
+    LOCAL_ENFORCE_USES_LIBRARIES := true
+  endif
+  ifneq (,$(LOCAL_USES_LIBRARIES))
+    LOCAL_ENFORCE_USES_LIBRARIES := true
+  endif
+endif
+
+my_dexpreopt_archs :=
+
 ifdef LOCAL_DEX_PREOPT
-
-  dexpreopt_boot_jar_module := $(filter $(DEXPREOPT_BOOT_JARS_MODULES),$(LOCAL_MODULE))
-
-  ifdef dexpreopt_boot_jar_module
-    # For libart, the boot jars' odex files are replaced by $(DEFAULT_DEX_PREOPT_INSTALLED_IMAGE).
-    # We use this installed_odex trick to get boot.art installed.
-    installed_odex := $(DEFAULT_DEX_PREOPT_INSTALLED_IMAGE)
-    # Append the odex for the 2nd arch if we have one.
-    installed_odex += $($(TARGET_2ND_ARCH_VAR_PREFIX)DEFAULT_DEX_PREOPT_INSTALLED_IMAGE)
-  else  # boot jar
-    ifeq ($(LOCAL_MODULE_CLASS),JAVA_LIBRARIES)
-
-      my_module_multilib := $(LOCAL_MULTILIB)
-      # If the module is not an SDK library and it's a system server jar, only preopt the primary arch.
-      my_filtered_lib_name := $(patsubst %.impl,%,$(LOCAL_MODULE))
-      ifeq (,$(filter $(JAVA_SDK_LIBRARIES),$(my_filtered_lib_name)))
-        # For a Java library, by default we build odex for both 1st arch and 2nd arch.
-        # But it can be overridden with "LOCAL_MULTILIB := first".
-        ifneq (,$(filter $(PRODUCT_SYSTEM_SERVER_JARS),$(LOCAL_MODULE)))
-          # For system server jars, we build for only "first".
-          my_module_multilib := first
-        endif
-      endif
-
-      # Only preopt primary arch for translated arch since there is only an image there.
-      ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+  ifeq ($(LOCAL_MODULE_CLASS),JAVA_LIBRARIES)
+    my_module_multilib := $(LOCAL_MULTILIB)
+    # If the module is not an SDK library and it's a system server jar, only preopt the primary arch.
+    my_filtered_lib_name := $(patsubst %.impl,%,$(LOCAL_MODULE))
+    ifeq (,$(filter $(JAVA_SDK_LIBRARIES),$(my_filtered_lib_name)))
+      # For a Java library, by default we build odex for both 1st arch and 2nd arch.
+      # But it can be overridden with "LOCAL_MULTILIB := first".
+      ifneq (,$(filter $(PRODUCT_SYSTEM_SERVER_JARS),$(LOCAL_MODULE)))
+        # For system server jars, we build for only "first".
         my_module_multilib := first
       endif
-
-      # #################################################
-      # Odex for the 1st arch
-      my_2nd_arch_prefix :=
-      include $(BUILD_SYSTEM)/setup_one_odex.mk
-      # #################################################
-      # Odex for the 2nd arch
-      ifdef TARGET_2ND_ARCH
-        ifneq ($(TARGET_TRANSLATE_2ND_ARCH),true)
-          ifneq (first,$(my_module_multilib))
-            my_2nd_arch_prefix := $(TARGET_2ND_ARCH_VAR_PREFIX)
-            include $(BUILD_SYSTEM)/setup_one_odex.mk
-          endif  # my_module_multilib is not first.
-        endif  # TARGET_TRANSLATE_2ND_ARCH not true
-      endif  # TARGET_2ND_ARCH
-      # #################################################
-    else  # must be APPS
-      # The preferred arch
-      my_2nd_arch_prefix := $(LOCAL_2ND_ARCH_VAR_PREFIX)
-      # Save the module multilib since setup_one_odex modifies it.
-      saved_my_module_multilib := $(my_module_multilib)
-      include $(BUILD_SYSTEM)/setup_one_odex.mk
-      my_module_multilib := $(saved_my_module_multilib)
-      ifdef TARGET_2ND_ARCH
-        ifeq ($(my_module_multilib),both)
-          # The non-preferred arch
-          my_2nd_arch_prefix := $(if $(LOCAL_2ND_ARCH_VAR_PREFIX),,$(TARGET_2ND_ARCH_VAR_PREFIX))
-          include $(BUILD_SYSTEM)/setup_one_odex.mk
-        endif  # LOCAL_MULTILIB is both
-      endif  # TARGET_2ND_ARCH
-    endif  # LOCAL_MODULE_CLASS
-  endif  # boot jar
-
-  built_odex := $(strip $(built_odex))
-  built_vdex := $(strip $(built_vdex))
-  built_art := $(strip $(built_art))
-  installed_odex := $(strip $(installed_odex))
-  installed_vdex := $(strip $(installed_vdex))
-  installed_art := $(strip $(installed_art))
-
-  ifdef built_odex
-    ifeq (true,$(my_process_profile))
-      $(built_odex): $(my_built_profile)
-      $(built_odex): PRIVATE_PROFILE_PREOPT_FLAGS := --profile-file=$(my_built_profile)
-    else
-      $(built_odex): PRIVATE_PROFILE_PREOPT_FLAGS :=
     endif
 
-    ifndef LOCAL_DEX_PREOPT_FLAGS
-      LOCAL_DEX_PREOPT_FLAGS := $(DEXPREOPT.$(TARGET_PRODUCT).$(LOCAL_MODULE).CONFIG)
-      ifndef LOCAL_DEX_PREOPT_FLAGS
-        LOCAL_DEX_PREOPT_FLAGS := $(PRODUCT_DEX_PREOPT_DEFAULT_FLAGS)
-      endif
+    # Only preopt primary arch for translated arch since there is only an image there.
+    ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+      my_module_multilib := first
     endif
 
-    my_system_server_compiler_filter := $(PRODUCT_SYSTEM_SERVER_COMPILER_FILTER)
-    ifeq (,$(my_system_server_compiler_filter))
-      my_system_server_compiler_filter := speed
-    endif
-
-    my_default_compiler_filter := $(PRODUCT_DEX_PREOPT_DEFAULT_COMPILER_FILTER)
-    ifeq (,$(my_default_compiler_filter))
-      # If no default compiler filter is specified, default to 'quicken' to save on storage.
-      my_default_compiler_filter := quicken
-    endif
-
-    ifeq (,$(filter --compiler-filter=%, $(LOCAL_DEX_PREOPT_FLAGS)))
-      ifneq (,$(filter $(PRODUCT_SYSTEM_SERVER_JARS),$(LOCAL_MODULE)))
-        # Jars of system server, use the product option if it is set, speed otherwise.
-        LOCAL_DEX_PREOPT_FLAGS += --compiler-filter=$(my_system_server_compiler_filter)
-      else
-        ifneq (,$(filter $(PRODUCT_DEXPREOPT_SPEED_APPS) $(PRODUCT_SYSTEM_SERVER_APPS),$(LOCAL_MODULE)))
-          # Apps loaded into system server, and apps the product default to being compiled with the
-          # 'speed' compiler filter.
-          LOCAL_DEX_PREOPT_FLAGS += --compiler-filter=speed
-        else
-          ifeq (true,$(my_process_profile))
-            # For non system server jars, use speed-profile when we have a profile.
-            LOCAL_DEX_PREOPT_FLAGS += --compiler-filter=speed-profile
-          else
-            LOCAL_DEX_PREOPT_FLAGS += --compiler-filter=$(my_default_compiler_filter)
-          endif
-        endif
-      endif
-    endif
-
-    my_generate_dm := $(PRODUCT_DEX_PREOPT_GENERATE_DM_FILES)
-    ifeq (,$(filter $(LOCAL_DEX_PREOPT_FLAGS),--compiler-filter=verify))
-      # Generating DM files only makes sense for verify, avoid doing for non verify compiler filter APKs.
-      my_generate_dm := false
-    endif
-
-    # No reason to use a dm file if the dex is already uncompressed.
-    ifeq ($(LOCAL_UNCOMPRESS_DEX),true)
-      my_generate_dm := false
-    endif
-
-    ifeq (true,$(my_generate_dm))
-      LOCAL_DEX_PREOPT_FLAGS += --copy-dex-files=false
-      LOCAL_DEX_PREOPT := true
-      LOCAL_STRIP_DEX :=
-      my_built_dm := $(dir $(LOCAL_BUILT_MODULE))generated.dm
-      my_installed_dm := $(patsubst %.apk,%,$(LOCAL_INSTALLED_MODULE)).dm
-      my_copied_vdex := $(dir $(LOCAL_BUILT_MODULE))primary.vdex
-      $(eval $(call copy-one-file,$(built_vdex),$(my_copied_vdex)))
-      $(my_built_dm): PRIVATE_INPUT_VDEX := $(my_copied_vdex)
-      $(my_built_dm): $(my_copied_vdex) $(ZIPTIME)
-	$(hide) mkdir -p $(dir $@)
-	$(hide) rm -f $@
-	$(hide) zip -qD -j -X -9 $@ $(PRIVATE_INPUT_VDEX)
-	$(ZIPTIME) $@
-      $(eval $(call copy-one-file,$(my_built_dm),$(my_installed_dm)))
-    endif
-
-    # By default, emit debug info.
-    my_dexpreopt_debug_info := true
-    # If the global setting suppresses mini-debug-info, disable it.
-    ifeq (false,$(WITH_DEXPREOPT_DEBUG_INFO))
-      my_dexpreopt_debug_info := false
-    endif
-
-    # PRODUCT_SYSTEM_SERVER_DEBUG_INFO overrides WITH_DEXPREOPT_DEBUG_INFO.
-    # PRODUCT_OTHER_JAVA_DEBUG_INFO overrides WITH_DEXPREOPT_DEBUG_INFO.
-    ifneq (,$(filter $(PRODUCT_SYSTEM_SERVER_JARS),$(LOCAL_MODULE)))
-      ifeq (true,$(PRODUCT_SYSTEM_SERVER_DEBUG_INFO))
-        my_dexpreopt_debug_info := true
-      else ifeq (false,$(PRODUCT_SYSTEM_SERVER_DEBUG_INFO))
-        my_dexpreopt_debug_info := false
-      endif
-    else
-      ifeq (true,$(PRODUCT_OTHER_JAVA_DEBUG_INFO))
-        my_dexpreopt_debug_info := true
-      else ifeq (false,$(PRODUCT_OTHER_JAVA_DEBUG_INFO))
-        my_dexpreopt_debug_info := false
-      endif
-    endif
-
-    # Never enable on eng.
-    ifeq (eng,$(filter eng, $(TARGET_BUILD_VARIANT)))
-      my_dexpreopt_debug_info := false
-    endif
-
-    # Add dex2oat flag for debug-info/no-debug-info.
-    ifeq (true,$(my_dexpreopt_debug_info))
-      LOCAL_DEX_PREOPT_FLAGS += --generate-mini-debug-info
-    else ifeq (false,$(my_dexpreopt_debug_info))
-      LOCAL_DEX_PREOPT_FLAGS += --no-generate-mini-debug-info
-    endif
-
-    # Set the compiler reason to 'prebuilt' to identify the oat files produced
-    # during the build, as opposed to compiled on the device.
-    LOCAL_DEX_PREOPT_FLAGS += --compilation-reason=prebuilt
-
-    $(built_odex): PRIVATE_DEX_PREOPT_FLAGS := $(LOCAL_DEX_PREOPT_FLAGS)
-    $(built_vdex): $(built_odex)
-    $(built_art): $(built_odex)
-  endif
-
-  ifneq (true,$(my_generate_dm))
-    # Add the installed_odex to the list of installed files for this module if we aren't generating a
-    # dm file.
-    ALL_MODULES.$(my_register_name).INSTALLED += $(installed_odex)
-    ALL_MODULES.$(my_register_name).INSTALLED += $(installed_vdex)
-    ALL_MODULES.$(my_register_name).INSTALLED += $(installed_art)
-
-    ALL_MODULES.$(my_register_name).BUILT_INSTALLED += $(built_installed_odex)
-    ALL_MODULES.$(my_register_name).BUILT_INSTALLED += $(built_installed_vdex)
-    ALL_MODULES.$(my_register_name).BUILT_INSTALLED += $(built_installed_art)
-
-    # Make sure to install the .odex and .vdex when you run "make <module_name>"
-    $(my_all_targets): $(installed_odex) $(installed_vdex) $(installed_art)
-  else
-    ALL_MODULES.$(my_register_name).INSTALLED += $(my_installed_dm)
-    ALL_MODULES.$(my_register_name).BUILT_INSTALLED += $(my_built_dm) $(my_installed_dm)
-
-    # Make sure to install the .dm when you run "make <module_name>"
-    $(my_all_targets): $(installed_dm)
-  endif
+    # #################################################
+    # Odex for the 1st arch
+    my_dexpreopt_archs += $(TARGET_ARCH)
+    # Odex for the 2nd arch
+    ifdef TARGET_2ND_ARCH
+      ifneq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+        ifneq (first,$(my_module_multilib))
+          my_dexpreopt_archs += $(TARGET_2ND_ARCH)
+        endif  # my_module_multilib is not first.
+      endif  # TARGET_TRANSLATE_2ND_ARCH not true
+    endif  # TARGET_2ND_ARCH
+    # #################################################
+  else  # must be APPS
+    # The preferred arch
+    # Save the module multilib since setup_one_odex modifies it.
+    my_2nd_arch_prefix := $(LOCAL_2ND_ARCH_VAR_PREFIX)
+    my_dexpreopt_archs += $(TARGET_$(my_2nd_arch_prefix)ARCH)
+    ifdef TARGET_2ND_ARCH
+      ifeq ($(my_module_multilib),both)
+        # The non-preferred arch
+        my_2nd_arch_prefix := $(if $(LOCAL_2ND_ARCH_VAR_PREFIX),,$(TARGET_2ND_ARCH_VAR_PREFIX))
+        my_dexpreopt_archs += $(TARGET_$(my_2nd_arch_prefix)ARCH)
+      endif  # LOCAL_MULTILIB is both
+    endif  # TARGET_2ND_ARCH
+  endif  # LOCAL_MODULE_CLASS
 
   # Record dex-preopt config.
   DEXPREOPT.$(LOCAL_MODULE).DEX_PREOPT := $(LOCAL_DEX_PREOPT)
@@ -419,17 +170,97 @@
   DEXPREOPT.$(LOCAL_MODULE).PRIVILEGED_MODULE := $(LOCAL_PRIVILEGED_MODULE)
   DEXPREOPT.$(LOCAL_MODULE).VENDOR_MODULE := $(LOCAL_VENDOR_MODULE)
   DEXPREOPT.$(LOCAL_MODULE).TARGET_ARCH := $(LOCAL_MODULE_TARGET_ARCH)
-  DEXPREOPT.$(LOCAL_MODULE).INSTALLED := $(installed_odex)
   DEXPREOPT.$(LOCAL_MODULE).INSTALLED_STRIPPED := $(LOCAL_INSTALLED_MODULE)
   DEXPREOPT.MODULES.$(LOCAL_MODULE_CLASS) := $(sort \
     $(DEXPREOPT.MODULES.$(LOCAL_MODULE_CLASS)) $(LOCAL_MODULE))
 
+  $(call json_start)
+
+  $(call add_json_str,  Name,                          $(LOCAL_MODULE))
+  $(call add_json_str,  DexLocation,                   $(patsubst $(PRODUCT_OUT)%,%,$(LOCAL_INSTALLED_MODULE)))
+  $(call add_json_str,  BuildPath,                     $(LOCAL_BUILT_MODULE))
+  $(call add_json_str,  DexPath,                       $$1)
+  $(call add_json_str,  ExtrasOutputPath,              $$2)
+  $(call add_json_bool, PreferIntegrity,               $(filter true,$(LOCAL_PREFER_INTEGRITY)))
+  $(call add_json_bool, Privileged,                    $(filter true,$(LOCAL_PRIVILEGED_MODULE)))
+  $(call add_json_bool, UncompressedDex,               $(filter true,$(LOCAL_UNCOMPRESS_DEX)))
+  $(call add_json_bool, HasApkLibraries,               $(LOCAL_APK_LIBRARIES))
+  $(call add_json_list, PreoptFlags,                   $(LOCAL_DEX_PREOPT_FLAGS))
+  $(call add_json_str,  ProfileClassListing,           $(if $(my_process_profile),$(LOCAL_DEX_PREOPT_PROFILE)))
+  $(call add_json_bool, ProfileIsTextListing,          $(my_profile_is_text_listing))
+  $(call add_json_bool, EnforceUsesLibraries,          $(LOCAL_ENFORCE_USES_LIBRARIES))
+  $(call add_json_list, OptionalUsesLibraries,         $(LOCAL_OPTIONAL_USES_LIBRARIES))
+  $(call add_json_list, UsesLibraries,                 $(LOCAL_USES_LIBRARIES))
+  $(call add_json_map,  LibraryPaths)
+  $(foreach lib,$(sort $(LOCAL_USES_LIBRARIES) $(LOCAL_OPTIONAL_USES_LIBRARIES) org.apache.http.legacy.impl),\
+    $(call add_json_str, $(lib), $(call intermediates-dir-for,JAVA_LIBRARIES,$(lib),,COMMON)/javalib.jar))
+  $(call end_json_map)
+  $(call add_json_list, Archs,                         $(my_dexpreopt_archs))
+  $(call add_json_str,  DexPreoptImageLocation,        $(LOCAL_DEX_PREOPT_IMAGE_LOCATION))
+  $(call add_json_bool, PreoptExtractedApk,            $(my_preopt_for_extracted_apk))
+  $(call add_json_bool, NoCreateAppImage,              $(filter false,$(LOCAL_DEX_PREOPT_APP_IMAGE)))
+  $(call add_json_bool, ForceCreateAppImage,           $(filter true,$(LOCAL_DEX_PREOPT_APP_IMAGE)))
+  $(call add_json_bool, PresignedPrebuilt,             $(filter PRESIGNED,$(LOCAL_CERTIFICATE)))
+
+  $(call add_json_str,  StripInputPath,                $$1)
+  $(call add_json_str,  StripOutputPath,               $$2)
+
+  $(call json_end)
+
+  my_dexpreopt_config := $(intermediates)/dexpreopt.config
+  my_dexpreopt_script := $(intermediates)/dexpreopt.sh
+  my_strip_script := $(intermediates)/strip.sh
+  my_dexpreopt_zip := $(intermediates)/dexpreopt.zip
+
+  $(my_dexpreopt_config): PRIVATE_MODULE := $(LOCAL_MODULE)
+  $(my_dexpreopt_config): PRIVATE_CONTENTS := $(json_contents)
+  $(my_dexpreopt_config):
+	@echo "$(PRIVATE_MODULE) dexpreopt.config"
+	echo -e -n '$(subst $(newline),\n,$(subst ','\'',$(subst \,\\,$(PRIVATE_CONTENTS))))' > $@
+
+  .KATI_RESTAT: $(my_dexpreopt_script) $(my_strip_script)
+  $(my_dexpreopt_script): PRIVATE_MODULE := $(LOCAL_MODULE)
+  $(my_dexpreopt_script): PRIVATE_GLOBAL_CONFIG := $(PRODUCT_OUT)/dexpreopt.config
+  $(my_dexpreopt_script): PRIVATE_MODULE_CONFIG := $(my_dexpreopt_config)
+  $(my_dexpreopt_script): PRIVATE_STRIP_SCRIPT := $(my_strip_script)
+  $(my_dexpreopt_script): .KATI_IMPLICIT_OUTPUTS := $(my_strip_script)
+  $(my_dexpreopt_script): $(DEXPREOPT_GEN)
+  $(my_dexpreopt_script): $(my_dexpreopt_config) $(PRODUCT_OUT)/dexpreopt.config
+	@echo "$(PRIVATE_MODULE) dexpreopt gen"
+	$(DEXPREOPT_GEN) -global $(PRIVATE_GLOBAL_CONFIG) -module $(PRIVATE_MODULE_CONFIG) \
+	-extras_zip '"$$2"' -dexpreopt_script $@ -strip_script $(PRIVATE_STRIP_SCRIPT)
+
+  my_dexpreopt_deps := $(my_dex_jar)
+  my_dexpreopt_deps += $(if $(my_process_profile),$(LOCAL_DEX_PREOPT_PROFILE))
+  my_dexpreopt_deps += \
+    $(foreach lib,$(sort $(LOCAL_USES_LIBRARIES) $(LOCAL_OPTIONAL_USES_LIBRARIES) org.apache.http.legacy.impl),\
+      $(call intermediates-dir-for,JAVA_LIBRARIES,$(lib),,COMMON)/javalib.jar)
+  my_dexpreopt_deps += $(LOCAL_DEX_PREOPT_IMAGE_LOCATION)
+  # TODO: default boot images
+
+  $(my_dexpreopt_zip): PRIVATE_MODULE := $(LOCAL_MODULE)
+  $(my_dexpreopt_zip): $(my_dexpreopt_deps)
+  $(my_dexpreopt_zip): | $(DEXPREOPT_GEN_DEPS)
+  $(my_dexpreopt_zip): .KATI_DEPFILE := $(my_dexpreopt_zip).d
+  $(my_dexpreopt_zip): PRIVATE_DEX := $(my_dex_jar)
+  $(my_dexpreopt_zip): PRIVATE_SCRIPT := $(my_dexpreopt_script)
+  $(my_dexpreopt_zip): $(my_dexpreopt_script)
+	@echo "$(PRIVATE_MODULE) dexpreopt"
+	bash $(PRIVATE_SCRIPT) $(PRIVATE_DEX) $@
+
+  ifdef LOCAL_POST_INSTALL_CMD
+    # Add a shell command separator
+    LOCAL_POST_INSTALL_CMD += &&
+  endif
+
+  LOCAL_POST_INSTALL_CMD += unzip -qo -d $(PRODUCT_OUT) $(my_dexpreopt_zip)
+  $(LOCAL_INSTALLED_MODULE): PRIVATE_POST_INSTALL_CMD := $(LOCAL_POST_INSTALL_CMD)
+  $(LOCAL_INSTALLED_MODULE): $(my_dexpreopt_zip)
+
+  $(my_all_targets): $(my_dexpreopt_zip)
+
+  my_dexpreopt_config :=
+  my_dexpreopt_script :=
+  my_strip_script :=
+  my_dexpreopt_zip :=
 endif # LOCAL_DEX_PREOPT
-
-# Profile doesn't depend on LOCAL_DEX_PREOPT.
-ALL_MODULES.$(my_register_name).INSTALLED += $(my_installed_profile)
-ALL_MODULES.$(my_register_name).BUILT_INSTALLED += $(build_installed_profile)
-
-my_process_profile :=
-
-$(my_all_targets): $(my_installed_profile)
diff --git a/core/java_library.mk b/core/java_library.mk
index e4e51d8..3e54b0e 100644
--- a/core/java_library.mk
+++ b/core/java_library.mk
@@ -50,6 +50,8 @@
 LOCAL_EMMA_INSTRUMENT := false
 endif # EMMA_INSTRUMENT
 
+my_dex_jar := $(common_javalib.jar)
+
 #################################
 include $(BUILD_SYSTEM)/java.mk
 #################################
@@ -90,13 +92,13 @@
 
 # For libart boot jars, we don't have .odex files.
 else # ! boot jar
-$(built_odex): PRIVATE_MODULE := $(LOCAL_MODULE)
-# Use pattern rule - we may have multiple built odex files.
-$(built_odex) : $(dir $(LOCAL_BUILT_MODULE))% : $(common_javalib.jar)
-	@echo "Dexpreopt Jar: $(PRIVATE_MODULE) ($@)"
-	$(call dexpreopt-one-file,$<,$@)
 
-$(eval $(call dexpreopt-copy-jar,$(common_javalib.jar),$(LOCAL_BUILT_MODULE),$(LOCAL_STRIP_DEX)))
+$(LOCAL_BUILT_MODULE): PRIVATE_STRIP_SCRIPT := $(intermediates)/strip.sh
+$(LOCAL_BUILT_MODULE): $(intermediates)/strip.sh
+$(LOCAL_BUILT_MODULE): | $(DEXPREOPT_GEN_DEPS)
+$(LOCAL_BUILT_MODULE): .KATI_DEPFILE := $(LOCAL_BUILT_MODULE).d
+$(LOCAL_BUILT_MODULE): $(common_javalib.jar)
+	$(PRIVATE_STRIP_SCRIPT) $< $@
 
 endif # ! boot jar
 
diff --git a/core/package_internal.mk b/core/package_internal.mk
index 9327587..451fce7 100644
--- a/core/package_internal.mk
+++ b/core/package_internal.mk
@@ -432,6 +432,8 @@
 
 endif  # need_compile_res
 
+my_dex_jar := $(intermediates.COMMON)/dex.jar
+
 called_from_package_internal := true
 #################################
 include $(BUILD_SYSTEM)/java.mk
@@ -631,6 +633,12 @@
 ifneq ($(BUILD_PLATFORM_ZIP),)
 $(LOCAL_BUILT_MODULE) : .KATI_IMPLICIT_OUTPUTS := $(dir $(LOCAL_BUILT_MODULE))package.dex.apk
 endif
+ifdef LOCAL_DEX_PREOPT
+$(LOCAL_BUILT_MODULE) : PRIVATE_STRIP_SCRIPT := $(intermediates)/strip.sh
+$(LOCAL_BUILT_MODULE) : $(intermediates)/strip.sh
+$(LOCAL_BUILT_MODULE) : | $(DEXPREOPT_GEN_DEPS)
+$(LOCAL_BUILT_MODULE): .KATI_DEPFILE := $(LOCAL_BUILT_MODULE).d
+endif
 $(LOCAL_BUILT_MODULE):
 	@echo "target Package: $(PRIVATE_MODULE) ($@)"
 	rm -rf $@.parts
@@ -670,9 +678,8 @@
 	@# Keep a copy of apk with classes.dex unstripped
 	$(hide) cp -f $@ $(dir $@)package.dex.apk
 endif  # BUILD_PLATFORM_ZIP
-ifdef LOCAL_STRIP_DEX
-	$(call dexpreopt-remove-classes.dex,$@)
-endif
+	$(PRIVATE_STRIP_SCRIPT) $@ $@.tmp
+	mv -f $@.tmp $@
 endif  # LOCAL_DEX_PREOPT
 	$(sign-package)
 ifdef LOCAL_COMPRESSED_MODULE
@@ -739,23 +746,13 @@
 endif
 
 ###############################
-## Rule to build the odex file
+## Rule to build a jar containing dex files to dexpreopt without waiting for
+## the APK
 ifdef LOCAL_DEX_PREOPT
-$(built_odex): PRIVATE_DEX_FILE := $(built_dex)
-ifeq (true, $(LOCAL_UNCOMPRESS_DEX))
-$(built_odex): $(ZIP2ZIP) $(ZIPALIGN)
-endif
-# Use pattern rule - we may have multiple built odex files.
-$(built_odex) : $(dir $(LOCAL_BUILT_MODULE))% : $(built_dex)
+  $(my_dex_jar): PRIVATE_DEX_FILE := $(built_dex)
+  $(my_dex_jar): $(built_dex)
 	$(hide) mkdir -p $(dir $@) && rm -f $@
 	$(call create-dex-jar,$@,$(PRIVATE_DEX_FILE))
-ifeq (true, $(LOCAL_UNCOMPRESS_DEX))
-	$(uncompress-dexs)
-	$(align-package)
-endif
-	$(hide) mv $@ $@.input
-	$(call dexpreopt-one-file,$@.input,$@)
-	$(hide) rm $@.input
 endif
 
 ###############################
diff --git a/core/prebuilt_internal.mk b/core/prebuilt_internal.mk
index a4b58fc..e11d73c 100644
--- a/core/prebuilt_internal.mk
+++ b/core/prebuilt_internal.mk
@@ -319,6 +319,8 @@
 LOCAL_DEX_PREOPT := false
 endif
 
+my_dex_jar := $(my_prebuilt_src_file)
+
 #######################################
 # defines built_odex along with rule to install odex
 include $(BUILD_SYSTEM)/dex_preopt_odex_install.mk
@@ -342,7 +344,6 @@
 embedded_prebuilt_jni_libs :=
 endif
 $(built_module): PRIVATE_EMBEDDED_JNI_LIBS := $(embedded_prebuilt_jni_libs)
-$(built_module): $(ZIP2ZIP)
 
 ifdef LOCAL_COMPRESSED_MODULE
 $(built_module) : $(MINIGZIP)
@@ -356,6 +357,12 @@
 ifneq ($(BUILD_PLATFORM_ZIP),)
 $(built_module) : .KATI_IMPLICIT_OUTPUTS := $(dir $(LOCAL_BUILT_MODULE))package.dex.apk
 endif
+ifdef LOCAL_DEX_PREOPT
+$(built_module) : PRIVATE_STRIP_SCRIPT := $(intermediates)/strip.sh
+$(built_module) : $(intermediates)/strip.sh
+$(built_module) : | $(DEXPREOPT_GEN_DEPS)
+$(built_module) : .KATI_DEPFILE := $(built_module).d
+endif
 $(built_module) : $(my_prebuilt_src_file) | $(ZIPALIGN) $(SIGNAPK_JAR)
 	$(transform-prebuilt-to-target)
 	$(uncompress-prebuilt-embedded-jni-libs)
@@ -380,9 +387,8 @@
 	$(run-appcompat)
 endif  # module_run_appcompat
 ifdef LOCAL_DEX_PREOPT
-ifdef LOCAL_STRIP_DEX
-	$(call dexpreopt-remove-classes.dex,$@)
-endif  # LOCAL_STRIP_DEX
+	$(PRIVATE_STRIP_SCRIPT) $@ $@.tmp
+	mv -f $@.tmp $@
 endif  # LOCAL_DEX_PREOPT
 	$(sign-package)
 	# No need for align-package because sign-package takes care of alignment
@@ -394,20 +400,6 @@
 endif  # LOCAL_COMPRESSED_MODULE
 endif  # ! LOCAL_REPLACE_PREBUILT_APK_INSTALLED
 
-###############################
-## Rule to build the odex file.
-# In case we don't strip the built module, use it, as dexpreopt
-# can do optimizations based on whether the built module only
-# contains uncompressed dex code.
-ifdef LOCAL_DEX_PREOPT
-ifndef LOCAL_STRIP_DEX
-$(built_odex) : $(built_module)
-	$(call dexpreopt-one-file,$<,$@)
-else
-$(built_odex) : $(my_prebuilt_src_file)
-	$(call dexpreopt-one-file,$<,$@)
-endif
-endif
 
 ###############################
 ## Install split apks.
@@ -450,6 +442,7 @@
 endif # LOCAL_PACKAGE_SPLITS
 
 else ifeq ($(prebuilt_module_is_dex_javalib),true)  # ! LOCAL_MODULE_CLASS != APPS
+my_dex_jar := $(my_prebuilt_src_file)
 # This is a target shared library, i.e. a jar with classes.dex.
 #######################################
 # defines built_odex along with rule to install odex
@@ -464,13 +457,14 @@
 
 # For libart boot jars, we don't have .odex files.
 else # ! boot jar
-$(built_odex): PRIVATE_MODULE := $(LOCAL_MODULE)
-# Use pattern rule - we may have multiple built odex files.
-$(built_odex) : $(dir $(LOCAL_BUILT_MODULE))% : $(my_prebuilt_src_file)
-	@echo "Dexpreopt Jar: $(PRIVATE_MODULE) ($@)"
-	$(call dexpreopt-one-file,$<,$@)
 
-$(eval $(call dexpreopt-copy-jar,$(my_prebuilt_src_file),$(built_module),$(LOCAL_STRIP_DEX)))
+$(built_module): PRIVATE_STRIP_SCRIPT := $(intermediates)/strip.sh
+$(built_module): $(intermediates)/strip.sh
+$(built_module): | $(DEXPREOPT_GEN_DEPS)
+$(built_module): .KATI_DEPFILE := $(built_module).d
+$(built_module): $(my_prebuilt_src_file)
+	$(PRIVATE_STRIP_SCRIPT) $< $@
+
 endif # boot jar
 else # ! LOCAL_DEX_PREOPT
 $(built_module) : $(my_prebuilt_src_file)
diff --git a/core/setup_one_odex.mk b/core/setup_one_odex.mk
deleted file mode 100644
index 92f58b2..0000000
--- a/core/setup_one_odex.mk
+++ /dev/null
@@ -1,140 +0,0 @@
-#
-# Copyright (C) 2014 The Android Open Source Project
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-# Set up variables and dependency for one odex file
-# Input variables: my_2nd_arch_prefix
-# Output(modified) variables: built_odex, installed_odex, built_installed_odex
-
-my_built_odex := $(call get-odex-file-path,$($(my_2nd_arch_prefix)DEX2OAT_TARGET_ARCH),$(LOCAL_BUILT_MODULE))
-ifdef LOCAL_DEX_PREOPT_IMAGE_LOCATION
-my_dex_preopt_image_location := $(LOCAL_DEX_PREOPT_IMAGE_LOCATION)
-else
-my_dex_preopt_image_location := $($(my_2nd_arch_prefix)DEFAULT_DEX_PREOPT_BUILT_IMAGE_LOCATION)
-endif
-my_dex_preopt_image_filename := $(call get-image-file-path,$($(my_2nd_arch_prefix)DEX2OAT_TARGET_ARCH),$(my_dex_preopt_image_location))
-
-# If LOCAL_ENFORCE_USES_LIBRARIES is not set, default to true if either of LOCAL_USES_LIBRARIES or
-# LOCAL_OPTIONAL_USES_LIBRARIES are specified.
-ifeq (,$(LOCAL_ENFORCE_USES_LIBRARIES))
-# Will change the default to true unconditionally in the future.
-ifneq (,$(LOCAL_OPTIONAL_USES_LIBRARIES))
-LOCAL_ENFORCE_USES_LIBRARIES := true
-endif
-ifneq (,$(LOCAL_USES_LIBRARIES))
-LOCAL_ENFORCE_USES_LIBRARIES := true
-endif
-endif
-
-my_uses_libraries := $(LOCAL_USES_LIBRARIES)
-my_optional_uses_libraries := $(LOCAL_OPTIONAL_USES_LIBRARIES)
-my_missing_uses_libraries := $(INTERNAL_PLATFORM_MISSING_USES_LIBRARIES)
-
-# If we have either optional or required uses-libraries, set up the class loader context
-# accordingly.
-my_lib_names :=
-my_optional_lib_names :=
-my_filtered_optional_uses_libraries :=
-my_system_dependencies :=
-my_stored_preopt_class_loader_context_libs :=
-my_conditional_uses_libraries_host :=
-my_conditional_uses_libraries_target :=
-
-ifneq (true,$(LOCAL_ENFORCE_USES_LIBRARIES))
-  # Pass special class loader context to skip the classpath and collision check.
-  # This will get removed once LOCAL_USES_LIBRARIES is enforced.
-  # Right now LOCAL_USES_LIBRARIES is opt in, for the case where it's not specified we still default
-  # to the &.
-  my_dex_preopt_class_loader_context := \&
-else
-  # Compute the filtered optional uses libraries by removing ones that are not supposed to exist.
-  my_filtered_optional_uses_libraries := \
-      $(filter-out $(my_missing_uses_libraries), $(my_optional_uses_libraries))
-  my_filtered_uses_libraries := $(my_uses_libraries) $(my_filtered_optional_uses_libraries)
-
-  # These are the ones we are verifying in the make rule, use the unfiltered libraries.
-  my_lib_names := $(my_uses_libraries)
-  my_optional_lib_names := $(my_optional_uses_libraries)
-
-  # Calculate system build dependencies based on the filtered libraries.
-  my_intermediate_libs := $(foreach lib_name, $(my_lib_names) $(my_filtered_optional_uses_libraries), \
-    $(call intermediates-dir-for,JAVA_LIBRARIES,$(lib_name),,COMMON)/javalib.jar)
-  my_dex_preopt_system_dependencies := $(my_intermediate_libs)
-  my_dex_preopt_class_loader_context := $(call normalize-path-list,$(my_intermediate_libs))
-
-  # The class loader context checksums are filled in by dex2oat.
-  my_stored_preopt_class_loader_context_libs := $(call normalize-path-list, \
-      $(foreach lib_name,$(my_filtered_uses_libraries),/system/framework/$(lib_name).jar))
-
-  # Fix up org.apache.http.legacy.impl since it should be org.apache.http.legacy in the manifest.
-  my_lib_names := $(patsubst org.apache.http.legacy.impl,org.apache.http.legacy,$(my_lib_names))
-  my_optional_lib_names := $(patsubst org.apache.http.legacy.impl,org.apache.http.legacy,$(my_optional_lib_names))
-  ifeq (,$(filter org.apache.http.legacy,$(my_lib_names) $(my_optional_lib_names)))
-    my_conditional_uses_libraries_host := $(call intermediates-dir-for,JAVA_LIBRARIES,org.apache.http.legacy.impl,,COMMON)/javalib.jar
-    my_conditional_uses_libraries_target := /system/framework/org.apache.http.legacy.impl.jar
-  endif
-endif
-
-$(my_built_odex): $(AAPT)
-$(my_built_odex): $(my_conditional_uses_libraries_host)
-$(my_built_odex): $(my_dex_preopt_system_dependencies)
-$(my_built_odex): PRIVATE_ENFORCE_USES_LIBRARIES := $(LOCAL_ENFORCE_USES_LIBRARIES)
-$(my_built_odex): PRIVATE_CONDITIONAL_USES_LIBRARIES_HOST := $(my_conditional_uses_libraries_host)
-$(my_built_odex): PRIVATE_CONDITIONAL_USES_LIBRARIES_TARGET := $(my_conditional_uses_libraries_target)
-$(my_built_odex): PRIVATE_USES_LIBRARY_NAMES := $(my_lib_names)
-$(my_built_odex): PRIVATE_OPTIONAL_USES_LIBRARY_NAMES := $(my_optional_lib_names)
-$(my_built_odex): PRIVATE_2ND_ARCH_VAR_PREFIX := $(my_2nd_arch_prefix)
-$(my_built_odex): PRIVATE_DEX_LOCATION := $(patsubst $(PRODUCT_OUT)%,%,$(LOCAL_INSTALLED_MODULE))
-$(my_built_odex): PRIVATE_DEX_PREOPT_IMAGE_LOCATION := $(my_dex_preopt_image_location)
-$(my_built_odex): PRIVATE_DEX2OAT_CLASS_LOADER_CONTEXT := $(my_dex_preopt_class_loader_context)
-$(my_built_odex): PRIVATE_DEX2OAT_STORED_CLASS_LOADER_CONTEXT_LIBS := $(my_stored_preopt_class_loader_context_libs)
-$(my_built_odex) : $($(my_2nd_arch_prefix)DEXPREOPT_ONE_FILE_DEPENDENCY_BUILT_BOOT_PREOPT) \
-    $(DEXPREOPT_ONE_FILE_DEPENDENCY_TOOLS) \
-    $(my_dex_preopt_image_filename)
-
-my_installed_odex := $(call get-odex-installed-file-path,$($(my_2nd_arch_prefix)DEX2OAT_TARGET_ARCH),$(LOCAL_INSTALLED_MODULE))
-
-my_built_vdex := $(patsubst %.odex,%.vdex,$(my_built_odex))
-my_installed_vdex := $(patsubst %.odex,%.vdex,$(my_installed_odex))
-my_installed_art := $(patsubst %.odex,%.art,$(my_installed_odex))
-
-ifndef LOCAL_DEX_PREOPT_APP_IMAGE
-# Local override not defined, use the global one.
-ifeq (true,$(WITH_DEX_PREOPT_APP_IMAGE))
-  LOCAL_DEX_PREOPT_APP_IMAGE := true
-endif
-endif
-
-ifeq (true,$(LOCAL_DEX_PREOPT_APP_IMAGE))
-my_built_art := $(patsubst %.odex,%.art,$(my_built_odex))
-$(my_built_odex): PRIVATE_ART_FILE_PREOPT_FLAGS := --app-image-file=$(my_built_art) \
-    --image-format=lz4
-$(eval $(call copy-one-file,$(my_built_art),$(my_installed_art)))
-built_art += $(my_built_art)
-installed_art += $(my_installed_art)
-built_installed_art += $(my_built_art):$(my_installed_art)
-endif
-
-$(eval $(call copy-one-file,$(my_built_odex),$(my_installed_odex)))
-$(eval $(call copy-one-file,$(my_built_vdex),$(my_installed_vdex)))
-
-built_odex += $(my_built_odex)
-built_vdex += $(my_built_vdex)
-
-installed_odex += $(my_installed_odex)
-installed_vdex += $(my_installed_vdex)
-
-built_installed_odex += $(my_built_odex):$(my_installed_odex)
-built_installed_vdex += $(my_built_vdex):$(my_installed_vdex)
diff --git a/core/soong_app_prebuilt.mk b/core/soong_app_prebuilt.mk
index 1440806..73d934b 100644
--- a/core/soong_app_prebuilt.mk
+++ b/core/soong_app_prebuilt.mk
@@ -1,6 +1,16 @@
 # App prebuilt coming from Soong.
 # Extra inputs:
+# LOCAL_SOONG_BUILT_INSTALLED
+# LOCAL_SOONG_BUNDLE
+# LOCAL_SOONG_CLASSES_JAR
+# LOCAL_SOONG_DEX_JAR
+# LOCAL_SOONG_HEADER_JAR
+# LOCAL_SOONG_JACOCO_REPORT_CLASSES_JAR
+# LOCAL_SOONG_PROGUARD_DICT
 # LOCAL_SOONG_RESOURCE_EXPORT_PACKAGE
+# LOCAL_SOONG_RRO_DIRS
+# LOCAL_SOONG_JNI_LIBS_$(TARGET_ARCH)
+# LOCAL_SOONG_JNI_LIBS_$(TARGET_2ND_ARCH)
 
 ifneq ($(LOCAL_MODULE_MAKEFILE),$(SOONG_ANDROID_MK))
   $(call pretty-error,soong_app_prebuilt.mk may only be used from Soong)
@@ -59,28 +69,19 @@
 
 java-dex: $(LOCAL_SOONG_DEX_JAR)
 
-# defines built_odex along with rule to install odex
-include $(BUILD_SYSTEM)/dex_preopt_odex_install.mk
 
 ifneq ($(BUILD_PLATFORM_ZIP),)
   $(eval $(call copy-one-file,$(LOCAL_SOONG_DEX_JAR),$(dir $(LOCAL_BUILT_MODULE))package.dex.apk))
 endif
 
-ifdef LOCAL_DEX_PREOPT
-ifdef LOCAL_STRIP_DEX
-  # If we have stripped the final APK, use the original jar generated by soong.
-  $(built_odex): $(LOCAL_SOONG_DEX_JAR)
-	$(call dexpreopt-one-file,$<,$@)
-else
-  # If we haven't stripped, use the final APK for dexpreopt, as this may affect how the dex
-  # code is compiled.
-  $(built_odex): $(LOCAL_PREBUILT_MODULE_FILE)
-	$(call dexpreopt-one-file,$<,$@)
-endif  # LOCAL_STRIP_DEX
-  $(eval $(call dexpreopt-copy-jar,$(LOCAL_PREBUILT_MODULE_FILE),$(LOCAL_BUILT_MODULE),$(LOCAL_STRIP_DEX)))
-else
-  $(eval $(call copy-one-file,$(LOCAL_PREBUILT_MODULE_FILE),$(LOCAL_BUILT_MODULE)))
-endif
+$(eval $(call copy-one-file,$(LOCAL_PREBUILT_MODULE_FILE),$(LOCAL_BUILT_MODULE)))
+
+my_built_installed := $(foreach f,$(LOCAL_SOONG_BUILT_INSTALLED),\
+  $(call word-colon,1,$(f)):$(PRODUCT_OUT)$(call word-colon,2,$(f)))
+my_installed := $(call copy-many-files, $(my_built_installed))
+ALL_MODULES.$(my_register_name).INSTALLED += $(my_installed)
+ALL_MODULES.$(my_register_name).BUILT_INSTALLED += $(my_built_installed)
+$(my_register_name): $(my_installed)
 
 # embedded JNI will already have been handled by soong
 my_embed_jni :=
diff --git a/core/soong_config.mk b/core/soong_config.mk
index 279a612..9587b64 100644
--- a/core/soong_config.mk
+++ b/core/soong_config.mk
@@ -13,9 +13,9 @@
 endif
 endif
 
-ifeq ($(WRITE_SOONG_VARIABLES),true)
+include $(BUILD_SYSTEM)/dex_preopt_config.mk
 
-include $(BUILD_SYSTEM)/json.mk
+ifeq ($(WRITE_SOONG_VARIABLES),true)
 
 # Create soong.variables with copies of makefile settings.  Runs every build,
 # but only updates soong.variables if it changes
@@ -106,11 +106,13 @@
 $(call add_json_list, Platform_systemsdk_versions,       $(PLATFORM_SYSTEMSDK_VERSIONS))
 $(call add_json_bool, Malloc_not_svelte,                 $(call invert_bool,$(filter true,$(MALLOC_SVELTE))))
 $(call add_json_str,  Override_rs_driver,                $(OVERRIDE_RS_DRIVER))
+
 $(call add_json_bool, UncompressPrivAppDex,              $(call invert_bool,$(filter true,$(DONT_UNCOMPRESS_PRIV_APPS_DEXS))))
 $(call add_json_list, ModulesLoadedByPrivilegedModules,  $(PRODUCT_LOADED_BY_PRIVILEGED_MODULES))
-$(call add_json_bool, DefaultStripDex,                   $(call invert_bool,$(filter nostripping,$(DEX_PREOPT_DEFAULT))))
+
 $(call add_json_bool, DisableDexPreopt,                  $(filter false,$(WITH_DEXPREOPT)))
 $(call add_json_list, DisableDexPreoptModules,           $(DEXPREOPT_DISABLED_MODULES))
+$(call add_json_str,  DexPreoptProfileDir,               $(PRODUCT_DEX_PREOPT_PROFILE_DIR))
 
 $(call add_json_bool, Product_is_iot,                    $(filter true,$(PRODUCT_IOT)))
 
@@ -139,6 +141,8 @@
 
 $(call add_json_bool, FlattenApex,                       $(filter true,$(TARGET_FLATTEN_APEX)))
 
+$(call add_json_str,  DexpreoptGlobalConfig,             $(DEX_PREOPT_CONFIG))
+
 $(call add_json_map, VendorVars)
 $(foreach namespace,$(SOONG_CONFIG_NAMESPACES),\
   $(call add_json_map, $(namespace))\
diff --git a/core/soong_java_prebuilt.mk b/core/soong_java_prebuilt.mk
index 1642ba7..7adee88 100644
--- a/core/soong_java_prebuilt.mk
+++ b/core/soong_java_prebuilt.mk
@@ -1,5 +1,7 @@
 # Java prebuilt coming from Soong.
 # Extra inputs:
+# LOCAL_SOONG_BUILT_INSTALLED
+# LOCAL_SOONG_CLASSES_JAR
 # LOCAL_SOONG_HEADER_JAR
 # LOCAL_SOONG_DEX_JAR
 # LOCAL_SOONG_JACOCO_REPORT_CLASSES_JAR
@@ -22,8 +24,8 @@
 hiddenapi_flags_csv := $(intermediates.COMMON)/hiddenapi/flags.csv
 hiddenapi_metadata_csv := $(intermediates.COMMON)/hiddenapi/greylist.csv
 
-$(eval $(call copy-one-file,$(LOCAL_PREBUILT_MODULE_FILE),$(full_classes_jar)))
-$(eval $(call copy-one-file,$(LOCAL_PREBUILT_MODULE_FILE),$(full_classes_pre_proguard_jar)))
+$(eval $(call copy-one-file,$(LOCAL_SOONG_CLASSES_JAR),$(full_classes_jar)))
+$(eval $(call copy-one-file,$(LOCAL_SOONG_CLASSES_JAR),$(full_classes_pre_proguard_jar)))
 
 ifdef LOCAL_SOONG_JACOCO_REPORT_CLASSES_JAR
   $(eval $(call copy-one-file,$(LOCAL_SOONG_JACOCO_REPORT_CLASSES_JAR),\
@@ -80,37 +82,21 @@
         # java.mk.
         $(eval $(call hiddenapi-generate-csv,$(full_classes_jar),$(hiddenapi_flags_csv),$(hiddenapi_metadata_csv)))
         $(eval $(call hiddenapi-copy-soong-jar,$(LOCAL_SOONG_DEX_JAR),$(common_javalib.jar)))
+
+        # For libart, the boot jars' odex files are replaced by $(DEFAULT_DEX_PREOPT_INSTALLED_IMAGE).
+        # We use this installed_odex trick to get boot.art installed.
+        installed_odex := $(DEFAULT_DEX_PREOPT_INSTALLED_IMAGE)
+        # Append the odex for the 2nd arch if we have one.
+        installed_odex += $($(TARGET_2ND_ARCH_VAR_PREFIX)DEFAULT_DEX_PREOPT_INSTALLED_IMAGE)
+        ALL_MODULES.$(my_register_name).INSTALLED += $(installed_odex)
+        # Make sure to install the .odex and .vdex when you run "make <module_name>"
+        $(my_all_targets): $(installed_odex)
       else # !is_boot_jar
         $(eval $(call copy-one-file,$(LOCAL_SOONG_DEX_JAR),$(common_javalib.jar)))
       endif # is_boot_jar
       $(eval $(call add-dependency,$(common_javalib.jar),$(full_classes_jar) $(full_classes_header_jar)))
 
-      dex_preopt_profile_src_file := $(common_javalib.jar)
-
-      # defines built_odex along with rule to install odex
-      include $(BUILD_SYSTEM)/dex_preopt_odex_install.mk
-
-      dex_preopt_profile_src_file :=
-
-      ifdef LOCAL_DEX_PREOPT
-        ifneq ($(dexpreopt_boot_jar_module),) # boot jar
-          # boot jar's rules are defined in dex_preopt.mk
-          dexpreopted_boot_jar := $(DEXPREOPT_BOOT_JAR_DIR_FULL_PATH)/$(dexpreopt_boot_jar_module)_nodex.jar
-          $(eval $(call copy-one-file,$(dexpreopted_boot_jar),$(LOCAL_BUILT_MODULE)))
-
-          # For libart boot jars, we don't have .odex files.
-        else # ! boot jar
-          $(built_odex): PRIVATE_MODULE := $(LOCAL_MODULE)
-          # Use pattern rule - we may have multiple built odex files.
-$(built_odex) : $(dir $(LOCAL_BUILT_MODULE))% : $(common_javalib.jar)
-	@echo "Dexpreopt Jar: $(PRIVATE_MODULE) ($@)"
-	$(call dexpreopt-one-file,$<,$@)
-
-         $(eval $(call dexpreopt-copy-jar,$(common_javalib.jar),$(LOCAL_BUILT_MODULE),$(LOCAL_STRIP_DEX)))
-        endif # ! boot jar
-      else # LOCAL_DEX_PREOPT
-        $(eval $(call copy-one-file,$(common_javalib.jar),$(LOCAL_BUILT_MODULE)))
-      endif # LOCAL_DEX_PREOPT
+      $(eval $(call copy-one-file,$(LOCAL_PREBUILT_MODULE_FILE),$(LOCAL_BUILT_MODULE)))
     else # LOCAL_IS_HOST_MODULE
       $(eval $(call copy-one-file,$(LOCAL_SOONG_DEX_JAR),$(LOCAL_BUILT_MODULE)))
       $(eval $(call add-dependency,$(LOCAL_BUILT_MODULE),$(full_classes_jar) $(full_classes_header_jar)))
@@ -135,6 +121,13 @@
   $(eval $(call copy-one-file,$(full_classes_jar),$(LOCAL_BUILT_MODULE)))
 endif  # LOCAL_SOONG_DEX_JAR
 
+my_built_installed := $(foreach f,$(LOCAL_SOONG_BUILT_INSTALLED),\
+  $(call word-colon,1,$(f)):$(PRODUCT_OUT)$(call word-colon,2,$(f)))
+my_installed := $(call copy-many-files, $(my_built_installed))
+ALL_MODULES.$(my_register_name).INSTALLED += $(my_installed)
+ALL_MODULES.$(my_register_name).BUILT_INSTALLED += $(my_built_installed)
+$(my_register_name): $(my_installed)
+
 ifdef LOCAL_SOONG_AAR
   ALL_MODULES.$(LOCAL_MODULE).AAR := $(LOCAL_SOONG_AAR)
 endif
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index c76537b..0fd40db 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -252,7 +252,7 @@
     #  It must be of the form "YYYY-MM-DD" on production devices.
     #  It must match one of the Android Security Patch Level strings of the Public Security Bulletins.
     #  If there is no $PLATFORM_SECURITY_PATCH set, keep it empty.
-      PLATFORM_SECURITY_PATCH := 2018-09-05
+      PLATFORM_SECURITY_PATCH := 2018-12-05
 endif
 .KATI_READONLY := PLATFORM_SECURITY_PATCH
 
diff --git a/target/product/product_launched_with_k.mk b/target/product/product_launched_with_k.mk
new file mode 100644
index 0000000..87faa12
--- /dev/null
+++ b/target/product/product_launched_with_k.mk
@@ -0,0 +1,2 @@
+#PRODUCT_SHIPPING_API_LEVEL indicates the first api level, device has been commercially launched on.
+PRODUCT_SHIPPING_API_LEVEL := 19
diff --git a/target/product/product_launched_with_l.mk b/target/product/product_launched_with_l.mk
index 6e782f7..4e79749 100644
--- a/target/product/product_launched_with_l.mk
+++ b/target/product/product_launched_with_l.mk
@@ -1,3 +1,2 @@
 #PRODUCT_SHIPPING_API_LEVEL indicates the first api level, device has been commercially launched on.
 PRODUCT_SHIPPING_API_LEVEL := 21
-
diff --git a/tools/fs_config/fs_config_generate.c b/tools/fs_config/fs_config_generate.c
index 0f0603b..dddd331 100644
--- a/tools/fs_config/fs_config_generate.c
+++ b/tools/fs_config/fs_config_generate.c
@@ -41,22 +41,7 @@
 #endif
 
 #ifdef NO_ANDROID_FILESYSTEM_CONFIG_DEVICE_FILES
-static const struct fs_path_config android_device_files[] = {
-#ifdef NO_ANDROID_FILESYSTEM_CONFIG_DEVICE_DIRS
-    {0000, AID_ROOT, AID_ROOT, 0, "system/etc/fs_config_dirs"},
-    {0000, AID_ROOT, AID_ROOT, 0, "vendor/etc/fs_config_dirs"},
-    {0000, AID_ROOT, AID_ROOT, 0, "oem/etc/fs_config_dirs"},
-    {0000, AID_ROOT, AID_ROOT, 0, "odm/etc/fs_config_dirs"},
-    {0000, AID_ROOT, AID_ROOT, 0, "product/etc/fs_config_dirs"},
-    {0000, AID_ROOT, AID_ROOT, 0, "product_services/etc/fs_config_dirs"},
-#endif
-    {0000, AID_ROOT, AID_ROOT, 0, "system/etc/fs_config_files"},
-    {0000, AID_ROOT, AID_ROOT, 0, "vendor/etc/fs_config_files"},
-    {0000, AID_ROOT, AID_ROOT, 0, "oem/etc/fs_config_files"},
-    {0000, AID_ROOT, AID_ROOT, 0, "odm/etc/fs_config_files"},
-    {0000, AID_ROOT, AID_ROOT, 0, "product/etc/fs_config_files"},
-    {0000, AID_ROOT, AID_ROOT, 0, "product_services/etc/fs_config_files"},
-};
+static const struct fs_path_config android_device_files[] = { };
 #endif
 
 static void usage() {
diff --git a/tools/fs_config/fs_config_generator.py b/tools/fs_config/fs_config_generator.py
index f7e3eb2..db484a0 100755
--- a/tools/fs_config/fs_config_generator.py
+++ b/tools/fs_config/fs_config_generator.py
@@ -909,22 +909,6 @@
         '#warning No device-supplied android_filesystem_config.h,'
         ' using empty default.')
 
-    # Long names.
-    # pylint: disable=invalid-name
-    _NO_ANDROID_FILESYSTEM_CONFIG_DEVICE_DIRS_ENTRY = (
-        '{ 00000, AID_ROOT, AID_ROOT, 0,'
-        '"system/etc/fs_config_dirs" },')
-
-    _NO_ANDROID_FILESYSTEM_CONFIG_DEVICE_FILES_ENTRY = (
-        '{ 00000, AID_ROOT, AID_ROOT, 0,'
-        '"system/etc/fs_config_files" },')
-
-    _IFDEF_ANDROID_FILESYSTEM_CONFIG_DEVICE_DIRS = (
-        '#ifdef NO_ANDROID_FILESYSTEM_CONFIG_DEVICE_DIRS')
-    # pylint: enable=invalid-name
-
-    _ENDIF = '#endif'
-
     _OPEN_FILE_STRUCT = (
         'static const struct fs_path_config android_device_files[] = {')
 
@@ -1082,12 +1066,6 @@
             for fs_config in files:
                 self._to_fs_entry(fs_config)
 
-            if not are_dirs:
-                print FSConfigGen._IFDEF_ANDROID_FILESYSTEM_CONFIG_DEVICE_DIRS
-                print(
-                    '    ' +
-                    FSConfigGen._NO_ANDROID_FILESYSTEM_CONFIG_DEVICE_DIRS_ENTRY)
-                print FSConfigGen._ENDIF
             print FSConfigGen._CLOSE_FILE_STRUCT
 
         if are_dirs:
diff --git a/tools/releasetools/blockimgdiff.py b/tools/releasetools/blockimgdiff.py
index 2d20e23..b5e01d3 100644
--- a/tools/releasetools/blockimgdiff.py
+++ b/tools/releasetools/blockimgdiff.py
@@ -26,7 +26,8 @@
 import re
 import sys
 import threading
-from collections import deque, OrderedDict
+import zlib
+from collections import deque, namedtuple, OrderedDict
 from hashlib import sha1
 
 import common
@@ -36,8 +37,12 @@
 
 logger = logging.getLogger(__name__)
 
+# The tuple contains the style and bytes of a bsdiff|imgdiff patch.
+PatchInfo = namedtuple("PatchInfo", ["imgdiff", "content"])
+
 
 def compute_patch(srcfile, tgtfile, imgdiff=False):
+  """Calls bsdiff|imgdiff to compute the patch data, returns a PatchInfo."""
   patchfile = common.MakeTempFile(prefix='patch-')
 
   cmd = ['imgdiff', '-z'] if imgdiff else ['bsdiff']
@@ -52,7 +57,7 @@
     raise ValueError(output)
 
   with open(patchfile, 'rb') as f:
-    return f.read()
+    return PatchInfo(imgdiff, f.read())
 
 
 class Image(object):
@@ -203,17 +208,17 @@
     self.id = len(by_id)
     by_id.append(self)
 
-    self._patch = None
+    self._patch_info = None
 
   @property
-  def patch(self):
-    return self._patch
+  def patch_info(self):
+    return self._patch_info
 
-  @patch.setter
-  def patch(self, patch):
-    if patch:
+  @patch_info.setter
+  def patch_info(self, info):
+    if info:
       assert self.style == "diff"
-    self._patch = patch
+    self._patch_info = info
 
   def NetStashChange(self):
     return (sum(sr.size() for (_, sr) in self.stash_before) -
@@ -224,7 +229,7 @@
     self.use_stash = []
     self.style = "new"
     self.src_ranges = RangeSet()
-    self.patch = None
+    self.patch_info = None
 
   def __str__(self):
     return (str(self.id) + ": <" + str(self.src_ranges) + " " + self.style +
@@ -462,16 +467,7 @@
     self.AbbreviateSourceNames()
     self.FindTransfers()
 
-    # Find the ordering dependencies among transfers (this is O(n^2)
-    # in the number of transfers).
-    self.GenerateDigraph()
-    # Find a sequence of transfers that satisfies as many ordering
-    # dependencies as possible (heuristically).
-    self.FindVertexSequence()
-    # Fix up the ordering dependencies that the sequence didn't
-    # satisfy.
-    self.ReverseBackwardEdges()
-    self.ImproveVertexSequence()
+    self.FindSequenceForTransfers()
 
     # Ensure the runtime stash size is under the limit.
     if common.OPTIONS.cache_size is not None:
@@ -829,7 +825,7 @@
             # These are identical; we don't need to generate a patch,
             # just issue copy commands on the device.
             xf.style = "move"
-            xf.patch = None
+            xf.patch_info = None
             tgt_size = xf.tgt_ranges.size() * self.tgt.blocksize
             if xf.src_ranges != xf.tgt_ranges:
               logger.info(
@@ -839,11 +835,10 @@
                       xf.tgt_name + " (from " + xf.src_name + ")"),
                   str(xf.tgt_ranges), str(xf.src_ranges))
           else:
-            if xf.patch:
-              # We have already generated the patch with imgdiff, while
-              # splitting large APKs (i.e. in FindTransfers()).
-              assert not self.disable_imgdiff
-              imgdiff = True
+            if xf.patch_info:
+              # We have already generated the patch (e.g. during split of large
+              # APKs or reduction of stash size)
+              imgdiff = xf.patch_info.imgdiff
             else:
               imgdiff = self.CanUseImgdiff(
                   xf.tgt_name, xf.tgt_ranges, xf.src_ranges)
@@ -854,85 +849,16 @@
         else:
           assert False, "unknown style " + xf.style
 
-    if diff_queue:
-      if self.threads > 1:
-        logger.info("Computing patches (using %d threads)...", self.threads)
-      else:
-        logger.info("Computing patches...")
-
-      diff_total = len(diff_queue)
-      patches = [None] * diff_total
-      error_messages = []
-
-      # Using multiprocessing doesn't give additional benefits, due to the
-      # pattern of the code. The diffing work is done by subprocess.call, which
-      # already runs in a separate process (not affected much by the GIL -
-      # Global Interpreter Lock). Using multiprocess also requires either a)
-      # writing the diff input files in the main process before forking, or b)
-      # reopening the image file (SparseImage) in the worker processes. Doing
-      # neither of them further improves the performance.
-      lock = threading.Lock()
-      def diff_worker():
-        while True:
-          with lock:
-            if not diff_queue:
-              return
-            xf_index, imgdiff, patch_index = diff_queue.pop()
-            xf = self.transfers[xf_index]
-
-          patch = xf.patch
-          if not patch:
-            src_ranges = xf.src_ranges
-            tgt_ranges = xf.tgt_ranges
-
-            src_file = common.MakeTempFile(prefix="src-")
-            with open(src_file, "wb") as fd:
-              self.src.WriteRangeDataToFd(src_ranges, fd)
-
-            tgt_file = common.MakeTempFile(prefix="tgt-")
-            with open(tgt_file, "wb") as fd:
-              self.tgt.WriteRangeDataToFd(tgt_ranges, fd)
-
-            message = []
-            try:
-              patch = compute_patch(src_file, tgt_file, imgdiff)
-            except ValueError as e:
-              message.append(
-                  "Failed to generate %s for %s: tgt=%s, src=%s:\n%s" % (
-                      "imgdiff" if imgdiff else "bsdiff",
-                      xf.tgt_name if xf.tgt_name == xf.src_name else
-                      xf.tgt_name + " (from " + xf.src_name + ")",
-                      xf.tgt_ranges, xf.src_ranges, e.message))
-            if message:
-              with lock:
-                error_messages.extend(message)
-
-          with lock:
-            patches[patch_index] = (xf_index, patch)
-
-      threads = [threading.Thread(target=diff_worker)
-                 for _ in range(self.threads)]
-      for th in threads:
-        th.start()
-      while threads:
-        threads.pop().join()
-
-      if error_messages:
-        logger.error('ERROR:')
-        logger.error('\n'.join(error_messages))
-        logger.error('\n\n\n')
-        sys.exit(1)
-    else:
-      patches = []
+    patches = self.ComputePatchesForInputList(diff_queue, False)
 
     offset = 0
     with open(prefix + ".patch.dat", "wb") as patch_fd:
-      for index, patch in patches:
+      for index, patch_info, _ in patches:
         xf = self.transfers[index]
-        xf.patch_len = len(patch)
+        xf.patch_len = len(patch_info.content)
         xf.patch_start = offset
         offset += xf.patch_len
-        patch_fd.write(patch)
+        patch_fd.write(patch_info.content)
 
         tgt_size = xf.tgt_ranges.size() * self.tgt.blocksize
         logger.info(
@@ -999,6 +925,32 @@
       for i in range(s, e):
         assert touched[i] == 1
 
+  def FindSequenceForTransfers(self):
+    """Finds a sequence for the given transfers.
+
+     The goal is to minimize the violation of order dependencies between these
+     transfers, so that fewer blocks are stashed when applying the update.
+    """
+
+    # Clear the existing dependency between transfers
+    for xf in self.transfers:
+      xf.goes_before = OrderedDict()
+      xf.goes_after = OrderedDict()
+
+      xf.stash_before = []
+      xf.use_stash = []
+
+    # Find the ordering dependencies among transfers (this is O(n^2)
+    # in the number of transfers).
+    self.GenerateDigraph()
+    # Find a sequence of transfers that satisfies as many ordering
+    # dependencies as possible (heuristically).
+    self.FindVertexSequence()
+    # Fix up the ordering dependencies that the sequence didn't
+    # satisfy.
+    self.ReverseBackwardEdges()
+    self.ImproveVertexSequence()
+
   def ImproveVertexSequence(self):
     logger.info("Improving vertex order...")
 
@@ -1248,6 +1200,105 @@
           b.goes_before[a] = size
           a.goes_after[b] = size
 
+  def ComputePatchesForInputList(self, diff_queue, compress_target):
+    """Returns a list of patch information for the input list of transfers.
+
+      Args:
+        diff_queue: a list of transfers with style 'diff'
+        compress_target: If True, compresses the target ranges of each
+            transfers; and save the size.
+
+      Returns:
+        A list of (transfer order, patch_info, compressed_size) tuples.
+    """
+
+    if not diff_queue:
+      return []
+
+    if self.threads > 1:
+      logger.info("Computing patches (using %d threads)...", self.threads)
+    else:
+      logger.info("Computing patches...")
+
+    diff_total = len(diff_queue)
+    patches = [None] * diff_total
+    error_messages = []
+
+    # Using multiprocessing doesn't give additional benefits, due to the
+    # pattern of the code. The diffing work is done by subprocess.call, which
+    # already runs in a separate process (not affected much by the GIL -
+    # Global Interpreter Lock). Using multiprocess also requires either a)
+    # writing the diff input files in the main process before forking, or b)
+    # reopening the image file (SparseImage) in the worker processes. Doing
+    # neither of them further improves the performance.
+    lock = threading.Lock()
+
+    def diff_worker():
+      while True:
+        with lock:
+          if not diff_queue:
+            return
+          xf_index, imgdiff, patch_index = diff_queue.pop()
+          xf = self.transfers[xf_index]
+
+        message = []
+        compressed_size = None
+
+        patch_info = xf.patch_info
+        if not patch_info:
+          src_file = common.MakeTempFile(prefix="src-")
+          with open(src_file, "wb") as fd:
+            self.src.WriteRangeDataToFd(xf.src_ranges, fd)
+
+          tgt_file = common.MakeTempFile(prefix="tgt-")
+          with open(tgt_file, "wb") as fd:
+            self.tgt.WriteRangeDataToFd(xf.tgt_ranges, fd)
+
+          try:
+            patch_info = compute_patch(src_file, tgt_file, imgdiff)
+          except ValueError as e:
+            message.append(
+                "Failed to generate %s for %s: tgt=%s, src=%s:\n%s" % (
+                    "imgdiff" if imgdiff else "bsdiff",
+                    xf.tgt_name if xf.tgt_name == xf.src_name else
+                    xf.tgt_name + " (from " + xf.src_name + ")",
+                    xf.tgt_ranges, xf.src_ranges, e.message))
+
+        if compress_target:
+          tgt_data = self.tgt.ReadRangeSet(xf.tgt_ranges)
+          try:
+            # Compresses with the default level
+            compress_obj = zlib.compressobj(6, zlib.DEFLATED, -zlib.MAX_WBITS)
+            compressed_data = (compress_obj.compress("".join(tgt_data))
+                               + compress_obj.flush())
+            compressed_size = len(compressed_data)
+          except zlib.error as e:
+            message.append(
+                "Failed to compress the data in target range {} for {}:\n"
+                "{}".format(xf.tgt_ranges, xf.tgt_name, e.message))
+
+        if message:
+          with lock:
+            error_messages.extend(message)
+
+        with lock:
+          patches[patch_index] = (xf_index, patch_info, compressed_size)
+
+    threads = [threading.Thread(target=diff_worker)
+               for _ in range(self.threads)]
+    for th in threads:
+      th.start()
+    while threads:
+      threads.pop().join()
+
+    if error_messages:
+      logger.error('ERROR:')
+      logger.error('\n'.join(error_messages))
+      logger.error('\n\n\n')
+      sys.exit(1)
+
+    return patches
+
   def FindTransfers(self):
     """Parse the file_map to generate all the transfers."""
 
@@ -1585,7 +1636,7 @@
                                 self.tgt.RangeSha1(tgt_ranges),
                                 self.src.RangeSha1(src_ranges),
                                 "diff", self.transfers)
-      transfer_split.patch = patch
+      transfer_split.patch_info = PatchInfo(True, patch)
 
   def AbbreviateSourceNames(self):
     for k in self.src.file_map.keys():