Merge "Enable asan/ubsan for mips"
diff --git a/core/Makefile b/core/Makefile
index 7bb9d17..c0294a6 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -47,6 +47,20 @@
 unique_product_copy_files_destinations :=
 
 # -----------------------------------------------------------------
+# Define rules to copy headers defined in copy_headers.mk
+# If more than one makefile declared a header, print a warning,
+# then copy the last one defined. This matches the previous make
+# behavior.
+$(foreach dest,$(ALL_COPIED_HEADERS), \
+    $(eval _srcs := $(ALL_COPIED_HEADERS.$(dest).SRC)) \
+    $(eval _src := $(word $(words $(_srcs)),$(_srcs))) \
+    $(if $(call streq,$(_src),$(_srcs)),, \
+        $(warning Duplicate header copy: $(dest)) \
+	$(warning Defined in: $(ALL_COPIED_HEADERS.$(dest).MAKEFILE))) \
+    $(eval $(call copy-one-header,$(_src),$(dest))))
+all_copied_headers: $(ALL_COPIED_HEADERS)
+
+# -----------------------------------------------------------------
 # docs/index.html
 ifeq (,$(TARGET_BUILD_APPS))
 gen := $(OUT_DOCS)/index.html
@@ -214,6 +228,7 @@
 			DATE="$(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)" \
@@ -419,9 +434,9 @@
 pdk_fusion_log_tags_file := $(patsubst $(PRODUCT_OUT)/%,$(_pdk_fusion_intermediates)/%,$(filter $(event_log_tags_file),$(ALL_PDK_FUSION_FILES)))
 
 $(all_event_log_tags_file): PRIVATE_SRC_FILES := $(all_event_log_tags_src) $(pdk_fusion_log_tags_file)
-$(all_event_log_tags_file): $(all_event_log_tags_src) $(pdk_fusion_log_tags_file)
+$(all_event_log_tags_file): $(all_event_log_tags_src) $(pdk_fusion_log_tags_file) $(MERGETAGS) build/tools/event_log_tags.py
 	$(hide) mkdir -p $(dir $@)
-	$(hide) build/tools/merge-event-log-tags.py -o $@ $(PRIVATE_SRC_FILES)
+	$(hide) $(MERGETAGS) -o $@ $(PRIVATE_SRC_FILES)
 
 # Include tags from all packages included in this product, plus all
 # tags that are part of the system (ie, not in a vendor/ or device/
@@ -435,9 +450,9 @@
 
 $(event_log_tags_file): PRIVATE_SRC_FILES := $(event_log_tags_src) $(pdk_fusion_log_tags_file)
 $(event_log_tags_file): PRIVATE_MERGED_FILE := $(all_event_log_tags_file)
-$(event_log_tags_file): $(event_log_tags_src) $(all_event_log_tags_file) $(pdk_fusion_log_tags_file)
+$(event_log_tags_file): $(event_log_tags_src) $(all_event_log_tags_file) $(pdk_fusion_log_tags_file) $(MERGETAGS) build/tools/event_log_tags.py
 	$(hide) mkdir -p $(dir $@)
-	$(hide) build/tools/merge-event-log-tags.py -o $@ -m $(PRIVATE_MERGED_FILE) $(PRIVATE_SRC_FILES)
+	$(hide) $(MERGETAGS) -o $@ -m $(PRIVATE_MERGED_FILE) $(PRIVATE_SRC_FILES)
 
 event-log-tags: $(event_log_tags_file)
 
@@ -467,8 +482,6 @@
 # -----------------------------------------------------------------
 # the ramdisk
 INTERNAL_RAMDISK_FILES := $(filter $(TARGET_ROOT_OUT)/%, \
-	$(ALL_PREBUILT) \
-	$(ALL_COPIED_HEADERS) \
 	$(ALL_GENERATED_SOURCES) \
 	$(ALL_DEFAULT_INSTALLED_MODULES))
 
@@ -493,8 +506,28 @@
 	$(addprefix --second ,$(INSTALLED_2NDBOOTLOADER_TARGET)) \
 	--kernel $(INSTALLED_KERNEL_TARGET)
 
+INTERNAL_BVBTOOL_MAKE_BOOT_IMAGE_ARGS := \
+	--kernel $(INSTALLED_KERNEL_TARGET) \
+	--rootfs_with_hashes $(PRODUCT_OUT)/system.img
+
+ifdef BOARD_BVB_ROLLBACK_INDEX
+INTERNAL_BVBTOOL_MAKE_BOOT_IMAGE_ARGS += \
+	--rollback_index $(BOARD_BVB_ROLLBACK_INDEX)
+endif
+
+ifndef BOARD_BVB_KEY_PATH
+# If key path isn't specified, use the 4096-bit test key.
+INTERNAL_BVBTOOL_SIGN_BOOT_IMAGE_ARGS := --algorithm SHA256_RSA4096 \
+	--key system/bvb/test/testkey_rsa4096.pem
+else
+INTERNAL_BVBTOOL_SIGN_BOOT_IMAGE_ARGS := \
+	--algorithm $(BOARD_BVB_ALGORITHM) --key $(BOARD_BVB_KEY_PATH)
+endif
+
+
 ifneq ($(BOARD_BUILD_SYSTEM_ROOT_IMAGE),true)
 INTERNAL_BOOTIMAGE_ARGS += --ramdisk $(INSTALLED_RAMDISK_TARGET)
+INTERNAL_BVBTOOL_MAKE_BOOT_IMAGE_ARGS += --initrd $(INSTALLED_RAMDISK_TARGET)
 endif
 
 
@@ -503,6 +536,7 @@
 BOARD_KERNEL_CMDLINE := $(strip $(BOARD_KERNEL_CMDLINE))
 ifdef BOARD_KERNEL_CMDLINE
   INTERNAL_BOOTIMAGE_ARGS += --cmdline "$(BOARD_KERNEL_CMDLINE)"
+  INTERNAL_BVBTOOL_MAKE_BOOT_IMAGE_ARGS += --kernel_cmdline "$(BOARD_KERNEL_CMDLINE)"
 endif
 
 BOARD_KERNEL_BASE := $(strip $(BOARD_KERNEL_BASE))
@@ -515,6 +549,10 @@
   INTERNAL_BOOTIMAGE_ARGS += --pagesize $(BOARD_KERNEL_PAGESIZE)
 endif
 
+INTERNAL_MKBOOTIMG_VERSION_ARGS := \
+    --os_version $(PLATFORM_VERSION) \
+    --os_patch_level $(PLATFORM_SECURITY_PATCH)
+
 INSTALLED_BOOTIMAGE_TARGET := $(PRODUCT_OUT)/boot.img
 
 # BOARD_USES_RECOVERY_AS_BOOT = true must have BOARD_BUILD_SYSTEM_ROOT_IMAGE = true.
@@ -524,6 +562,23 @@
 endif
 endif
 
+ifeq ($(BOARD_BVB_ENABLE),true)
+
+$(INSTALLED_BOOTIMAGE_TARGET): $(BVBTOOL) $(INTERNAL_BOOTIMAGE_FILES) $(PRODUCT_OUT)/system.img
+	$(call pretty,"Target boot image: $@")
+	$(hide) $(BVBTOOL) make_boot_image $(INTERNAL_BVBTOOL_MAKE_BOOT_IMAGE_ARGS) $(BOARD_BVB_MAKE_BOOT_IMAGE_ARGS) --output $@
+	$(hide) $(BVBTOOL) sign_boot_image $(INTERNAL_BVBTOOL_SIGN_BOOT_IMAGE_ARGS) $(BOARD_BVB_SIGN_BOOT_IMAGE_ARGS) --image $@
+	$(hide) $(call assert-max-image-size,$@,$(BOARD_BOOTIMAGE_PARTITION_SIZE))
+
+.PHONY: bootimage-nodeps
+bootimage-nodeps: $(BVBTOOL)
+	@echo "make $@: ignoring dependencies"
+	$(hide) $(BVBTOOL) make_boot_image $(INTERNAL_BVBTOOL_MAKE_BOOT_IMAGE_ARGS) $(BOARD_BVB_MAKE_BOOT_IMAGE_ARGS) --output $(INSTALLED_BOOTIMAGE_TARGET)
+	$(hide) $(BVBTOOL) sign_boot_image $(INTERNAL_BVBTOOL_SIGN_BOOT_IMAGE_ARGS) $(BOARD_BVB_SIGN_BOOT_IMAGE_ARGS) --image $(INSTALLED_BOOTIMAGE_TARGET)
+	$(hide) $(call assert-max-image-size,$(INSTALLED_BOOTIMAGE_TARGET),$(BOARD_BOOTIMAGE_PARTITION_SIZE))
+
+else # BOARD_BVB_ENABLE
+
 # We build recovery as boot image if BOARD_USES_RECOVERY_AS_BOOT is true.
 ifneq ($(BOARD_USES_RECOVERY_AS_BOOT),true)
 ifeq ($(TARGET_BOOTIMAGE_USE_EXT2),true)
@@ -532,14 +587,14 @@
 
 $(INSTALLED_BOOTIMAGE_TARGET): $(MKBOOTIMG) $(INTERNAL_BOOTIMAGE_FILES) $(BOOT_SIGNER)
 	$(call pretty,"Target boot image: $@")
-	$(hide) $(MKBOOTIMG) $(INTERNAL_BOOTIMAGE_ARGS) $(BOARD_MKBOOTIMG_ARGS) --output $@
+	$(hide) $(MKBOOTIMG) $(INTERNAL_BOOTIMAGE_ARGS) $(INTERNAL_MKBOOTIMG_VERSION_ARGS) $(BOARD_MKBOOTIMG_ARGS) --output $@
 	$(BOOT_SIGNER) /boot $@ $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_VERITY_SIGNING_KEY).pk8 $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_VERITY_SIGNING_KEY).x509.pem $@
 	$(hide) $(call assert-max-image-size,$@,$(BOARD_BOOTIMAGE_PARTITION_SIZE))
 
 .PHONY: bootimage-nodeps
 bootimage-nodeps: $(MKBOOTIMG) $(BOOT_SIGNER)
 	@echo "make $@: ignoring dependencies"
-	$(hide) $(MKBOOTIMG) $(INTERNAL_BOOTIMAGE_ARGS) $(BOARD_MKBOOTIMG_ARGS) --output $(INSTALLED_BOOTIMAGE_TARGET)
+	$(hide) $(MKBOOTIMG) $(INTERNAL_BOOTIMAGE_ARGS) $(INTERNAL_MKBOOTIMG_VERSION_ARGS) $(BOARD_MKBOOTIMG_ARGS) --output $(INSTALLED_BOOTIMAGE_TARGET)
 	$(BOOT_SIGNER) /boot $(INSTALLED_BOOTIMAGE_TARGET) $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_VERITY_SIGNING_KEY).pk8 $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_VERITY_SIGNING_KEY).x509.pem $(INSTALLED_BOOTIMAGE_TARGET)
 	$(hide) $(call assert-max-image-size,$(INSTALLED_BOOTIMAGE_TARGET),$(BOARD_BOOTIMAGE_PARTITION_SIZE))
 
@@ -547,14 +602,14 @@
 
 $(INSTALLED_BOOTIMAGE_TARGET): $(MKBOOTIMG) $(INTERNAL_BOOTIMAGE_FILES) $(VBOOT_SIGNER)
 	$(call pretty,"Target boot image: $@")
-	$(hide) $(MKBOOTIMG) $(INTERNAL_BOOTIMAGE_ARGS) $(BOARD_MKBOOTIMG_ARGS) --output $@.unsigned
+	$(hide) $(MKBOOTIMG) $(INTERNAL_BOOTIMAGE_ARGS) $(INTERNAL_MKBOOTIMG_VERSION_ARGS) $(BOARD_MKBOOTIMG_ARGS) --output $@.unsigned
 	$(VBOOT_SIGNER) $(FUTILITY) $@.unsigned $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_VBOOT_SIGNING_KEY).vbpubk $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_VBOOT_SIGNING_KEY).vbprivk $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_VBOOT_SIGNING_SUBKEY).vbprivk $@.keyblock $@
 	$(hide) $(call assert-max-image-size,$@,$(BOARD_BOOTIMAGE_PARTITION_SIZE))
 
 .PHONY: bootimage-nodeps
 bootimage-nodeps: $(MKBOOTIMG) $(VBOOT_SIGNER)
 	@echo "make $@: ignoring dependencies"
-	$(hide) $(MKBOOTIMG) $(INTERNAL_BOOTIMAGE_ARGS) $(BOARD_MKBOOTIMG_ARGS) --output $(INSTALLED_BOOTIMAGE_TARGET).unsigned
+	$(hide) $(MKBOOTIMG) $(INTERNAL_BOOTIMAGE_ARGS) $(INTERNAL_MKBOOTIMG_VERSION_ARGS) $(BOARD_MKBOOTIMG_ARGS) --output $(INSTALLED_BOOTIMAGE_TARGET).unsigned
 	$(VBOOT_SIGNER) $(FUTILITY) $(INSTALLED_BOOTIMAGE_TARGET).unsigned $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_VBOOT_SIGNING_KEY).vbpubk $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_VBOOT_SIGNING_KEY).vbprivk $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_VBOOT_SIGNING_SUBKEY).vbprivk $(INSTALLED_BOOTIMAGE_TARGET).keyblock $(INSTALLED_BOOTIMAGE_TARGET)
 	$(hide) $(call assert-max-image-size,$(INSTALLED_BOOTIMAGE_TARGET),$(BOARD_BOOTIMAGE_PARTITION_SIZE))
 
@@ -562,17 +617,18 @@
 
 $(INSTALLED_BOOTIMAGE_TARGET): $(MKBOOTIMG) $(INTERNAL_BOOTIMAGE_FILES)
 	$(call pretty,"Target boot image: $@")
-	$(hide) $(MKBOOTIMG) $(INTERNAL_BOOTIMAGE_ARGS) $(BOARD_MKBOOTIMG_ARGS) --output $@
+	$(hide) $(MKBOOTIMG) $(INTERNAL_BOOTIMAGE_ARGS) $(INTERNAL_MKBOOTIMG_VERSION_ARGS) $(BOARD_MKBOOTIMG_ARGS) --output $@
 	$(hide) $(call assert-max-image-size,$@,$(BOARD_BOOTIMAGE_PARTITION_SIZE))
 
 .PHONY: bootimage-nodeps
 bootimage-nodeps: $(MKBOOTIMG)
 	@echo "make $@: ignoring dependencies"
-	$(hide) $(MKBOOTIMG) $(INTERNAL_BOOTIMAGE_ARGS) $(BOARD_MKBOOTIMG_ARGS) --output $(INSTALLED_BOOTIMAGE_TARGET)
+	$(hide) $(MKBOOTIMG) $(INTERNAL_BOOTIMAGE_ARGS) $(INTERNAL_MKBOOTIMG_VERSION_ARGS) $(BOARD_MKBOOTIMG_ARGS) --output $(INSTALLED_BOOTIMAGE_TARGET)
 	$(hide) $(call assert-max-image-size,$(INSTALLED_BOOTIMAGE_TARGET),$(BOARD_BOOTIMAGE_PARTITION_SIZE))
 
 endif # TARGET_BOOTIMAGE_USE_EXT2
 endif # BOARD_USES_RECOVERY_AS_BOOT
+endif # BOARD_BVB_ENABLE
 
 else	# TARGET_NO_KERNEL
 # HACK: The top-level targets depend on the bootimage.  Not all targets
@@ -661,7 +717,7 @@
 $(target_notice_file_html_gz): $(target_notice_file_html) | $(MINIGZIP)
 	$(hide) $(MINIGZIP) -9 < $< > $@
 installed_notice_html_gz := $(TARGET_OUT)/etc/NOTICE.html.gz
-$(installed_notice_html_gz): $(target_notice_file_html_gz) | $(ACP)
+$(installed_notice_html_gz): $(target_notice_file_html_gz)
 	$(copy-file-to-target)
 
 # if we've been run my mm, mmm, etc, don't reinstall this every time
@@ -959,8 +1015,8 @@
             ln -sf /system_root/system $(TARGET_RECOVERY_ROOT_OUT)/system) # Mount the system_root_image to /system_root and symlink /system.
   $(hide) $(MKBOOTFS) -d $(TARGET_OUT) $(TARGET_RECOVERY_ROOT_OUT) | $(MINIGZIP) > $(recovery_ramdisk)
   $(if $(filter true,$(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_SUPPORTS_VBOOT)), \
-    $(hide) $(MKBOOTIMG) $(INTERNAL_RECOVERYIMAGE_ARGS) $(BOARD_MKBOOTIMG_ARGS) --output $(1).unsigned, \
-    $(hide) $(MKBOOTIMG) $(INTERNAL_RECOVERYIMAGE_ARGS) $(BOARD_MKBOOTIMG_ARGS) --output $(1) --id > $(RECOVERYIMAGE_ID_FILE))
+    $(hide) $(MKBOOTIMG) $(INTERNAL_RECOVERYIMAGE_ARGS) $(INTERNAL_MKBOOTIMG_VERSION_ARGS) $(BOARD_MKBOOTIMG_ARGS) --output $(1).unsigned, \
+    $(hide) $(MKBOOTIMG) $(INTERNAL_RECOVERYIMAGE_ARGS) $(INTERNAL_MKBOOTIMG_VERSION_ARGS) $(BOARD_MKBOOTIMG_ARGS) --output $(1) --id > $(RECOVERYIMAGE_ID_FILE))
   $(if $(filter true,$(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_SUPPORTS_BOOT_SIGNER)),\
     $(BOOT_SIGNER) /recovery $(1) $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_VERITY_SIGNING_KEY).pk8 $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_VERITY_SIGNING_KEY).x509.pem $(1))
   $(if $(filter true,$(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_SUPPORTS_VBOOT)), \
@@ -1031,8 +1087,6 @@
         $(ALL_PDK_FUSION_FILES))
 
 INTERNAL_SYSTEMIMAGE_FILES := $(filter $(TARGET_OUT)/%, \
-    $(ALL_PREBUILT) \
-    $(ALL_COPIED_HEADERS) \
     $(ALL_GENERATED_SOURCES) \
     $(ALL_DEFAULT_INSTALLED_MODULES) \
     $(PDK_FUSION_SYSIMG_FILES) \
@@ -1100,8 +1154,13 @@
            fi; \
            mkdir -p $(DIST_DIR); cp $(INSTALLED_FILES_FILE) $(DIST_DIR)/installed-files-rescued.txt; \
            exit 1 )
+  $(if $(BOARD_BVB_ENABLE), $(hide) $(BVBTOOL) add_image_hashes $(BOARD_BVB_ADD_IMAGE_HASHES_ARGS) --image $(1))
 endef
 
+ifeq ($(BOARD_BVB_ENABLE),true)
+FULL_SYSTEMIMAGE_DEPS += $(BVBTOOL)
+endif
+
 $(BUILT_SYSTEMIMAGE): $(FULL_SYSTEMIMAGE_DEPS) $(INSTALLED_FILES_FILE)
 	$(call build-systemimage-target,$@)
 
@@ -1130,7 +1189,7 @@
 endif
 
 
-$(INSTALLED_SYSTEMIMAGE): $(BUILT_SYSTEMIMAGE) $(RECOVERY_FROM_BOOT_PATCH) | $(ACP)
+$(INSTALLED_SYSTEMIMAGE): $(BUILT_SYSTEMIMAGE) $(RECOVERY_FROM_BOOT_PATCH)
 	@echo "Install system fs image: $@"
 	$(copy-file-to-target)
 	$(hide) $(call assert-max-image-size,$@ $(RECOVERY_FROM_BOOT_PATCH),$(BOARD_SYSTEMIMAGE_PARTITION_SIZE))
@@ -1178,16 +1237,53 @@
 .PHONY: stnod
 stnod: systemtarball-nodeps
 
-#######
+# -----------------------------------------------------------------
 ## platform.zip: system, plus other files to be used in PDK fusion build,
 ## in a zip file
 ##
 ## PDK_PLATFORM_ZIP_PRODUCT_BINARIES is used to store specified files to platform.zip.
 ## The variable will be typically set from BoardConfig.mk.
 ## Files under out dir will be rejected to prevent possible conflicts with other rules.
+pdk_odex_javalibs := $(strip $(foreach m,$(DEXPREOPT.MODULES.JAVA_LIBRARIES),\
+  $(if $(filter $(DEXPREOPT.$(m).INSTALLED),$(ALL_DEFAULT_INSTALLED_MODULES)),$(m))))
+pdk_odex_apps := $(strip $(foreach m,$(DEXPREOPT.MODULES.APPS),\
+  $(if $(filter $(DEXPREOPT.$(m).INSTALLED),$(ALL_DEFAULT_INSTALLED_MODULES)),$(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))
+
+pdk_odex_config_mk := $(PRODUCT_OUT)/pdk_dexpreopt_config.mk
+$(pdk_odex_config_mk): PRIVATE_JAVA_LIBRARIES := $(pdk_odex_javalibs)
+$(pdk_odex_config_mk): PRIVATE_APPS := $(pdk_odex_apps)
+$(pdk_odex_config_mk) :
+	@echo "PDK odex config makefile: $@"
+	$(hide) mkdir -p $(dir $@)
+	$(hide) echo "# Auto-generated. Do not modify." > $@
+	$(hide) echo "PDK.DEXPREOPT.JAVA_LIBRARIES:=$(PRIVATE_JAVA_LIBRARIES)" >> $@
+	$(hide) echo "PDK.DEXPREOPT.APPS:=$(PRIVATE_APPS)" >> $@
+	$(foreach m,$(PRIVATE_JAVA_LIBRARIES),\
+	  $(hide) echo "PDK.DEXPREOPT.$(m).SRC:=$(patsubst $(OUT_DIR)/%,%,$(call intermediates-dir-for,JAVA_LIBRARIES,$(m),,COMMON)/javalib.jar)" >> $@$(newline)\
+	  $(hide) echo "PDK.DEXPREOPT.$(m).DEX_PREOPT:=$(DEXPREOPT.$(m).DEX_PREOPT)" >> $@$(newline)\
+	  $(hide) echo "PDK.DEXPREOPT.$(m).MULTILIB:=$(DEXPREOPT.$(m).MULTILIB)" >> $@$(newline)\
+	  $(hide) echo "PDK.DEXPREOPT.$(m).DEX_PREOPT_FLAGS:=$(DEXPREOPT.$(m).DEX_PREOPT_FLAGS)" >> $@$(newline)\
+	  )
+	$(foreach m,$(PRIVATE_APPS),\
+	  $(hide) echo "PDK.DEXPREOPT.$(m).SRC:=$(patsubst $(OUT_DIR)/%,%,$(call intermediates-dir-for,APPS,$(m))/package.dex.apk)" >> $@$(newline)\
+	  $(hide) echo "PDK.DEXPREOPT.$(m).DEX_PREOPT:=$(DEXPREOPT.$(m).DEX_PREOPT)" >> $@$(newline)\
+	  $(hide) echo "PDK.DEXPREOPT.$(m).MULTILIB:=$(DEXPREOPT.$(m).MULTILIB)" >> $@$(newline)\
+	  $(hide) echo "PDK.DEXPREOPT.$(m).DEX_PREOPT_FLAGS:=$(DEXPREOPT.$(m).DEX_PREOPT_FLAGS)" >> $@$(newline)\
+	  $(hide) echo "PDK.DEXPREOPT.$(m).PRIVILEGED_MODULE:=$(DEXPREOPT.$(m).PRIVILEGED_MODULE)" >> $@$(newline)\
+	  $(hide) echo "PDK.DEXPREOPT.$(m).PROPRIETARY_MODULE:=$(DEXPREOPT.$(m).PROPRIETARY_MODULE)" >> $@$(newline)\
+	  $(hide) echo "PDK.DEXPREOPT.$(m).TARGET_ARCH:=$(DEXPREOPT.$(m).TARGET_ARCH)" >> $@$(newline)\
+	  $(hide) echo "PDK.DEXPREOPT.$(m).STRIPPED_SRC:=$(patsubst $(PRODUCT_OUT)/%,%,$(DEXPREOPT.$(m).INSTALLED_STRIPPED))" >> $@$(newline)\
+	  )
+
 PDK_PLATFORM_ZIP_PRODUCT_BINARIES := $(filter-out $(OUT_DIR)/%,$(PDK_PLATFORM_ZIP_PRODUCT_BINARIES))
 INSTALLED_PLATFORM_ZIP := $(PRODUCT_OUT)/platform.zip
-$(INSTALLED_PLATFORM_ZIP) : $(INTERNAL_SYSTEMIMAGE_FILES)
+
+$(INSTALLED_PLATFORM_ZIP): PRIVATE_DEX_FILES := $(pdk_classes_dex)
+$(INSTALLED_PLATFORM_ZIP): PRIVATE_ODEX_CONFIG := $(pdk_odex_config_mk)
+$(INSTALLED_PLATFORM_ZIP) : $(INTERNAL_SYSTEMIMAGE_FILES) $(pdk_odex_config_mk)
 	$(call pretty,"Platform zip package: $(INSTALLED_PLATFORM_ZIP)")
 	$(hide) rm -f $@
 	$(hide) cd $(dir $@) && zip -qryX $(notdir $@) \
@@ -1204,6 +1300,9 @@
 ifneq ($(PDK_PLATFORM_ZIP_PRODUCT_BINARIES),)
 	$(hide) zip -qryX $@ $(PDK_PLATFORM_ZIP_PRODUCT_BINARIES)
 endif
+	@# Add dex-preopt files and config.
+	$(if $(PRIVATE_DEX_FILES),$(hide) cd $(OUT_DIR) && zip -qryX $(patsubst $(OUT_DIR)/%,%,$@ $(PRIVATE_DEX_FILES)))
+	$(hide) zip -qryXj $@ $(PRIVATE_ODEX_CONFIG)
 
 .PHONY: platform
 platform: $(INSTALLED_PLATFORM_ZIP)
@@ -1216,7 +1315,7 @@
 $(call dist-for-goals, platform platform-java, $(INSTALLED_PLATFORM_ZIP))
 endif
 
-#######
+# -----------------------------------------------------------------
 ## boot tarball
 define build-boottarball-target
     $(hide) echo "Target boot fs tarball: $(INSTALLED_BOOTTARBALL_TARGET)"
@@ -1308,6 +1407,36 @@
 
 
 # -----------------------------------------------------------------
+# partition table image
+ifdef BOARD_BPT_INPUT_FILES
+
+BUILT_BPTIMAGE_TARGET := $(PRODUCT_OUT)/partition-table.img
+
+INTERNAL_BVBTOOL_MAKE_TABLE_ARGS := \
+	--output_gpt $(BUILT_BPTIMAGE_TARGET) \
+	--output_json $(PRODUCT_OUT)/partition-table.bpt \
+	$(foreach file, $(BOARD_BPT_INPUT_FILES), --input $(file))
+
+ifdef BOARD_BPT_DISK_SIZE
+INTERNAL_BVBTOOL_MAKE_TABLE_ARGS += --disk_size $(BOARD_BPT_DISK_SIZE)
+endif
+
+define build-bptimage-target
+  $(call pretty,"Target partition table image: $(INSTALLED_BPTIMAGE_TARGET)")
+  $(hide) $(BPTTOOL) make_table $(INTERNAL_BVBTOOL_MAKE_TABLE_ARGS) $(BOARD_BPT_MAKE_TABLE_ARGS)
+endef
+
+INSTALLED_BPTIMAGE_TARGET := $(BUILT_BPTIMAGE_TARGET)
+$(INSTALLED_BPTIMAGE_TARGET): $(BPTTOOL) $(BOARD_BPT_INPUT_FILES)
+	$(build-bptimage-target)
+
+.PHONY: bptimage-nodeps
+bptimage-nodeps:
+	$(build-bptimage-target)
+
+endif # BOARD_BPT_INPUT_FILES
+
+# -----------------------------------------------------------------
 # cache partition image
 ifdef BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE
 INTERNAL_CACHEIMAGE_FILES := \
@@ -1433,6 +1562,10 @@
   $(HOST_OUT_JAVA_LIBRARIES)/BootSignature.jar \
   $(HOST_OUT_EXECUTABLES)/mkuserimg.sh \
   $(HOST_OUT_EXECUTABLES)/make_ext4fs \
+  $(HOST_OUT_EXECUTABLES)/mksquashfsimage.sh \
+  $(HOST_OUT_EXECUTABLES)/mksquashfs \
+  $(HOST_OUT_EXECUTABLES)/mkf2fsuserimg.sh \
+  $(HOST_OUT_EXECUTABLES)/make_f2fs \
   $(HOST_OUT_EXECUTABLES)/simg2img \
   $(HOST_OUT_EXECUTABLES)/e2fsck \
   $(HOST_OUT_EXECUTABLES)/build_verity_tree \
@@ -1452,8 +1585,6 @@
   $(HOST_LIBRARY_PATH)/libcutils$(HOST_SHLIB_SUFFIX) \
   $(HOST_LIBRARY_PATH)/libselinux$(HOST_SHLIB_SUFFIX) \
   $(HOST_LIBRARY_PATH)/libcrypto-host$(HOST_SHLIB_SUFFIX) \
-  $(HOST_LIBRARY_PATH)/libdivsufsort$(HOST_SHLIB_SUFFIX) \
-  $(HOST_LIBRARY_PATH)/libdivsufsort64$(HOST_SHLIB_SUFFIX) \
   $(HOST_LIBRARY_PATH)/libext2fs-host$(HOST_SHLIB_SUFFIX) \
   $(HOST_LIBRARY_PATH)/libext2_blkid-host$(HOST_SHLIB_SUFFIX) \
   $(HOST_LIBRARY_PATH)/libext2_com_err-host$(HOST_SHLIB_SUFFIX) \
@@ -1470,7 +1601,8 @@
   $(HOST_LIBRARY_PATH)/libevent-host$(HOST_SHLIB_SUFFIX) \
   $(HOST_LIBRARY_PATH)/libprotobuf-cpp-lite$(HOST_SHLIB_SUFFIX) \
   $(HOST_LIBRARY_PATH)/libssl-host$(HOST_SHLIB_SUFFIX) \
-  $(HOST_LIBRARY_PATH)/libz-host$(HOST_SHLIB_SUFFIX)
+  $(HOST_LIBRARY_PATH)/libz-host$(HOST_SHLIB_SUFFIX) \
+  $(HOST_LIBRARY_PATH)/libbase$(HOST_SHLIB_SUFFIX)
 
 .PHONY: otatools
 otatools: $(OTATOOLS)
@@ -1543,8 +1675,11 @@
 $(BUILT_TARGET_FILES_PACKAGE): tool_extensions := $(TARGET_RELEASETOOLS_EXTENSIONS)
 endif
 
+ifeq ($(AB_OTA_UPDATER),true)
+# Build zlib fingerprint if using the AB Updater.
+$(BUILT_TARGET_FILES_PACKAGE): $(TARGET_OUT_COMMON_GEN)/zlib_fingerprint
+else
 # Build OTA tools if not using the AB Updater.
-ifneq ($(AB_OTA_UPDATER),true)
 $(BUILT_TARGET_FILES_PACKAGE): $(built_ota_tools)
 endif
 
@@ -1686,6 +1821,7 @@
 	$(hide) echo "extra_recovery_keys=$(PRODUCT_EXTRA_RECOVERY_KEYS)" >> $(zip_root)/META/misc_info.txt
 endif
 	$(hide) echo 'mkbootimg_args=$(BOARD_MKBOOTIMG_ARGS)' >> $(zip_root)/META/misc_info.txt
+	$(hide) echo 'mkbootimg_version_args=$(INTERNAL_MKBOOTIMG_VERSION_ARGS)' >> $(zip_root)/META/misc_info.txt
 	$(hide) echo "use_set_metadata=1" >> $(zip_root)/META/misc_info.txt
 	$(hide) echo "multistage_support=1" >> $(zip_root)/META/misc_info.txt
 	$(hide) echo "update_rename_support=1" >> $(zip_root)/META/misc_info.txt
@@ -1701,6 +1837,23 @@
 ifeq ($(BOARD_USES_FULL_RECOVERY_IMAGE),true)
 	$(hide) echo "full_recovery_image=true" >> $(zip_root)/META/misc_info.txt
 endif
+ifeq ($(BOARD_BVB_ENABLE),true)
+	$(hide) echo "board_bvb_enable=true" >> $(zip_root)/META/misc_info.txt
+	$(hide) echo "board_bvb_make_boot_image_args=$(BOARD_BVB_MAKE_BOOT_IMAGE_ARGS)" >> $(zip_root)/META/misc_info.txt
+	$(hide) echo "board_bvb_sign_boot_image_args=$(BOARD_BVB_SIGN_BOOT_IMAGE_ARGS)" >> $(zip_root)/META/misc_info.txt
+	$(hide) echo "board_bvb_algorithm=$(BOARD_BVB_ALGORITHM)" >> $(zip_root)/META/misc_info.txt
+	$(hide) echo "board_bvb_key_path=$(BOARD_BVB_KEY_PATH)" >> $(zip_root)/META/misc_info.txt
+	$(hide) echo "board_bvb_rollback_index=$(BOARD_BVB_ROLLBACK_INDEX)" >> $(zip_root)/META/misc_info.txt
+	$(hide) echo "board_bvb_add_image_hashes_args=$(BOARD_BVB_ADD_IMAGE_HASHES_ARGS)" >> $(zip_root)/META/misc_info.txt
+endif
+ifdef BOARD_BPT_INPUT_FILES
+	$(hide) echo "board_bpt_enable=true" >> $(zip_root)/META/misc_info.txt
+	$(hide) echo "board_bpt_make_table_args=$(BOARD_BPT_MAKE_TABLE_ARGS)" >> $(zip_root)/META/misc_info.txt
+	$(hide) echo "board_bpt_input_files=$(BOARD_BPT_INPUT_FILES)" >> $(zip_root)/META/misc_info.txt
+endif
+ifdef BOARD_BPT_DISK_SIZE
+	$(hide) echo "board_bpt_disk_size=$(BOARD_BPT_DISK_SIZE)" >> $(zip_root)/META/misc_info.txt
+endif
 	$(call generate-userimage-prop-dictionary, $(zip_root)/META/misc_info.txt)
 ifneq ($(INSTALLED_RECOVERYIMAGE_TARGET),)
 	$(hide) PATH=$(foreach p,$(INTERNAL_USERIMAGES_BINARY_PATHS),$(p):)$$PATH MKBOOTIMG=$(MKBOOTIMG) \
@@ -1709,6 +1862,7 @@
 ifeq ($(AB_OTA_UPDATER),true)
 	@# When using the A/B updater, include the updater config files in the zip.
 	$(hide) $(ACP) $(TOPDIR)system/update_engine/update_engine.conf $(zip_root)/META/update_engine_config.txt
+	$(hide) $(ACP) $(TARGET_OUT_COMMON_GEN)/zlib_fingerprint $(zip_root)/META/zlib_fingerprint.txt
 	$(hide) for part in $(AB_OTA_PARTITIONS); do \
 	  echo "$${part}" >> $(zip_root)/META/ab_partitions.txt; \
 	done
@@ -1948,8 +2102,6 @@
 # if we don't have a real list, then use "everything"
 ifeq ($(strip $(ATREE_FILES)),)
 ATREE_FILES := \
-	$(ALL_PREBUILT) \
-	$(ALL_COPIED_HEADERS) \
 	$(ALL_DEFAULT_INSTALLED_MODULES) \
 	$(INSTALLED_RAMDISK_TARGET) \
 	$(ALL_DOCS) \
@@ -2033,6 +2185,7 @@
 			-v "TARGET_CPU_ABI=$(TARGET_CPU_ABI)" \
 			-v "DLL_EXTENSION=$(HOST_SHLIB_SUFFIX)" \
 			-v "FONT_OUT=$(SDK_FONT_TEMP)" \
+			-v "JACK_SDKTOOL_VERSION=$(JACK_SDKTOOL_VERSION)" \
 			-o $(PRIVATE_DIR) && \
 		cp -f $(target_notice_file_txt) \
 				$(PRIVATE_DIR)/system-images/android-$(PLATFORM_VERSION)/$(TARGET_CPU_ABI)/NOTICE.txt && \
diff --git a/core/base_rules.mk b/core/base_rules.mk
index 2fe0616..c4fbe11 100644
--- a/core/base_rules.mk
+++ b/core/base_rules.mk
@@ -55,8 +55,13 @@
 ifeq ($(my_host_cross),true)
   my_module_tags :=
 endif
+ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+ifdef LOCAL_2ND_ARCH_VAR_PREFIX
+# Don't pull in modules by tags if this is for translation TARGET_2ND_ARCH.
+  my_module_tags :=
+endif
+endif
 
-ifdef BUILDING_WITH_NINJA
 # Ninja has an implicit dependency on the command being run, and kati will
 # regenerate the ninja manifest if any read makefile changes, so there is no
 # need to have dependencies on makefiles.
@@ -64,7 +69,6 @@
 # a .mk file, because a few users of LOCAL_ADDITIONAL_DEPENDENCIES don't include
 # base_rules.mk, but it will fix the most common ones.
 LOCAL_ADDITIONAL_DEPENDENCIES := $(filter-out %.mk,$(LOCAL_ADDITIONAL_DEPENDENCIES))
-endif
 
 ###########################################################
 ## Validate and define fallbacks for input LOCAL_* variables.
@@ -125,7 +129,17 @@
 my_32_64_bit_suffix := $(if $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)IS_64_BIT),64,32)
 
 ifneq (true,$(LOCAL_UNINSTALLABLE_MODULE))
+ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+# When in TARGET_TRANSLATE_2ND_ARCH both TARGET_ARCH and TARGET_2ND_ARCH are 32-bit,
+# to avoid path conflict we force using LOCAL_MODULE_PATH_64 for the first arch.
+ifdef LOCAL_2ND_ARCH_VAR_PREFIX
+my_multilib_module_path := $(LOCAL_MODULE_PATH_32)
+else  # ! LOCAL_2ND_ARCH_VAR_PREFIX
+my_multilib_module_path := $(LOCAL_MODULE_PATH_64)
+endif  # ! LOCAL_2ND_ARCH_VAR_PREFIX
+else  # ! TARGET_TRANSLATE_2ND_ARCH
 my_multilib_module_path := $(strip $(LOCAL_MODULE_PATH_$(my_32_64_bit_suffix)))
+endif # ! TARGET_TRANSLATE_2ND_ARCH
 ifdef my_multilib_module_path
 my_module_path := $(my_multilib_module_path)
 else
@@ -288,6 +302,12 @@
 .PHONY: $(my_register_name)
 $(my_register_name): $(LOCAL_BUILT_MODULE) $(LOCAL_INSTALLED_MODULE)
 
+ifneq ($(my_register_name),$(LOCAL_MODULE))
+# $(LOCAL_MODULE) covers all the multilib targets.
+.PHONY: $(LOCAL_MODULE)
+$(LOCAL_MODULE) : $(my_register_name)
+endif
+
 # Set up phony targets that covers all modules under the given paths.
 # This allows us to build everything in given paths by running mmma/mma.
 my_path_components := $(subst /,$(space),$(LOCAL_PATH))
@@ -301,45 +321,30 @@
 ## Module installation rule
 ###########################################################
 
-# Some hosts do not have ACP; override the LOCAL version if that's the case.
-ifneq ($(strip $(HOST_ACP_UNAVAILABLE)),)
-  LOCAL_ACP_UNAVAILABLE := $(strip $(HOST_ACP_UNAVAILABLE))
-endif
-
 ifndef LOCAL_UNINSTALLABLE_MODULE
-  # Define a copy rule to install the module.
-  # acp and libraries that it uses can't use acp for
-  # installation;  hence, LOCAL_ACP_UNAVAILABLE.
 $(LOCAL_INSTALLED_MODULE): PRIVATE_POST_INSTALL_CMD := $(LOCAL_POST_INSTALL_CMD)
-ifneq ($(LOCAL_ACP_UNAVAILABLE),true)
-$(LOCAL_INSTALLED_MODULE): $(LOCAL_BUILT_MODULE) | $(ACP)
+$(LOCAL_INSTALLED_MODULE): $(LOCAL_BUILT_MODULE)
 	@echo "Install: $@"
 	$(copy-file-to-new-target)
 	$(PRIVATE_POST_INSTALL_CMD)
-else
-$(LOCAL_INSTALLED_MODULE): $(LOCAL_BUILT_MODULE)
-	@echo "Install: $@"
-	$(copy-file-to-target-with-cp)
-endif
 
 # Rule to install the module's companion init.rc.
-my_init_rc := $(LOCAL_INIT_RC_$(my_32_64_bit_suffix))
-my_init_rc_src :=
 my_init_rc_installed :=
-ifndef my_init_rc
-my_init_rc := $(LOCAL_INIT_RC)
+my_init_rc_pairs :=
+my_init_rc := $(LOCAL_INIT_RC_$(my_32_64_bit_suffix))
+ifneq ($(my_init_rc),)
+my_init_rc_pairs += $(LOCAL_PATH)/$(my_init_rc):$(TARGET_OUT$(partition_tag)_ETC)/init/$(notdir $(my_init_rc))
+endif
+ifneq ($(LOCAL_INIT_RC),)
+my_init_rc_pairs += $(LOCAL_PATH)/$(LOCAL_INIT_RC):$(TARGET_OUT$(partition_tag)_ETC)/init/$(notdir $(LOCAL_INIT_RC))
 # Make sure we don't define the rule twice in multilib module.
 LOCAL_INIT_RC :=
 endif
-ifdef my_init_rc
-my_init_rc_src := $(LOCAL_PATH)/$(my_init_rc)
-my_init_rc_installed := $(TARGET_OUT$(partition_tag)_ETC)/init/$(notdir $(my_init_rc_src))
-$(my_init_rc_installed) : $(my_init_rc_src) | $(ACP)
-	@echo "Install: $@"
-	$(copy-file-to-new-target)
+ifneq ($(my_init_rc_pairs),)
+my_init_rc_installed := $(call copy-many-files,$(my_init_rc_pairs))
 
 $(my_register_name) : $(my_init_rc_installed)
-endif # my_init_rc
+endif # my_init_rc_pairs
 endif # !LOCAL_UNINSTALLABLE_MODULE
 
 ###########################################################
@@ -392,7 +397,7 @@
 ALL_MODULES.$(my_register_name).BUILT_INSTALLED := \
     $(strip $(ALL_MODULES.$(my_register_name).BUILT_INSTALLED) \
     $(LOCAL_BUILT_MODULE):$(LOCAL_INSTALLED_MODULE) \
-    $(addprefix $(my_init_rc_src):,$(my_init_rc_installed)))
+    $(my_init_rc_pairs))
 endif
 ifdef LOCAL_PICKUP_FILES
 # Files or directories ready to pick up by the build system
diff --git a/core/binary.mk b/core/binary.mk
index 1c7ffda..b25bf08 100644
--- a/core/binary.mk
+++ b/core/binary.mk
@@ -53,7 +53,7 @@
 my_c_includes := $(LOCAL_C_INCLUDES)
 my_generated_sources := $(LOCAL_GENERATED_SOURCES)
 my_native_coverage := $(LOCAL_NATIVE_COVERAGE)
-my_additional_dependencies := $(LOCAL_MODULE_MAKEFILE_DEP) $(LOCAL_ADDITIONAL_DEPENDENCIES)
+my_additional_dependencies := $(LOCAL_ADDITIONAL_DEPENDENCIES)
 my_export_c_include_dirs := $(LOCAL_EXPORT_C_INCLUDE_DIRS)
 
 ifdef LOCAL_IS_HOST_MODULE
@@ -66,14 +66,11 @@
 my_ndk_sysroot_include :=
 my_ndk_sysroot_lib :=
 ifdef LOCAL_SDK_VERSION
-  ifdef LOCAL_NDK_VERSION
-    $(error $(LOCAL_PATH): LOCAL_NDK_VERSION is now retired.)
-  endif
   ifdef LOCAL_IS_HOST_MODULE
     $(error $(LOCAL_PATH): LOCAL_SDK_VERSION cannot be used in host module)
   endif
-  my_ndk_source_root := $(HISTORICAL_NDK_VERSIONS_ROOT)/current/sources
-  my_ndk_sysroot := $(HISTORICAL_NDK_VERSIONS_ROOT)/current/platforms/android-$(LOCAL_SDK_VERSION)/arch-$(TARGET_$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)
+  my_ndk_source_root := $(HISTORICAL_NDK_VERSIONS_ROOT)/$(LOCAL_NDK_VERSION)/sources
+  my_ndk_sysroot := $(HISTORICAL_NDK_VERSIONS_ROOT)/$(LOCAL_NDK_VERSION)/platforms/android-$(LOCAL_SDK_VERSION)/arch-$(TARGET_$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)
   my_ndk_sysroot_include := $(my_ndk_sysroot)/usr/include
 
   # x86_64 and and mips64 are both multilib toolchains, so their libraries are
@@ -112,9 +109,6 @@
   my_ndk_stl_static_lib :=
   my_ndk_stl_cppflags :=
   my_cpu_variant := $(TARGET_$(LOCAL_2ND_ARCH_VAR_PREFIX)CPU_ABI)
-  ifeq (mips32r6,$(TARGET_$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH_VARIANT))
-    my_cpu_variant := mips32r6
-  endif
   LOCAL_NDK_STL_VARIANT := $(strip $(LOCAL_NDK_STL_VARIANT))
   ifeq (,$(LOCAL_NDK_STL_VARIANT))
     LOCAL_NDK_STL_VARIANT := system
@@ -131,17 +125,30 @@
     my_system_shared_libraries += libstdc++
     ifeq (stlport_static,$(LOCAL_NDK_STL_VARIANT))
       my_ndk_stl_static_lib := $(my_ndk_source_root)/cxx-stl/stlport/libs/$(my_cpu_variant)/libstlport_static.a
+      my_ldlibs += -ldl
     else
       my_ndk_stl_shared_lib_fullpath := $(my_ndk_source_root)/cxx-stl/stlport/libs/$(my_cpu_variant)/libstlport_shared.so
       my_ndk_stl_shared_lib := -lstlport_shared
     endif
   else # LOCAL_NDK_STL_VARIANT is not stlport_* either
   ifneq (,$(filter c++_%, $(LOCAL_NDK_STL_VARIANT)))
-    my_ndk_stl_include_path := $(my_ndk_source_root)/cxx-stl/llvm-libc++/libcxx/include \
-                               $(my_ndk_source_root)/cxx-stl/llvm-libc++/gabi++/include \
-                               $(my_ndk_source_root)/android/support/include
+    my_ndk_stl_include_path := \
+      $(my_ndk_source_root)/cxx-stl/llvm-libc++/libcxx/include \
+      $(my_ndk_source_root)/android/support/include \
+
+    # Pre-r11 NDKs used libgabi++ for libc++'s C++ ABI, but r11 and later use
+    # libc++abi.
+    ifeq ($(LOCAL_NDK_VERSION),r10)
+      my_ndk_stl_include_path += \
+        $(my_ndk_source_root)/cxx-stl/llvm-libc++/gabi++/include
+    else
+      my_ndk_stl_include_path += \
+        $(my_ndk_source_root)/cxx-stl/llvm-libc++abi/libcxxabi/include
+    endif
+
     ifeq (c++_static,$(LOCAL_NDK_STL_VARIANT))
       my_ndk_stl_static_lib := $(my_ndk_source_root)/cxx-stl/llvm-libc++/libs/$(my_cpu_variant)/libc++_static.a
+      my_ldlibs += -ldl
     else
       my_ndk_stl_shared_lib_fullpath := $(my_ndk_source_root)/cxx-stl/llvm-libc++/libs/$(my_cpu_variant)/libc++_shared.so
       my_ndk_stl_shared_lib := -lc++_shared
@@ -212,10 +219,15 @@
 # clang is enabled by default for host builds
 # enable it unless we've specifically disabled clang above
 ifdef LOCAL_IS_HOST_MODULE
-    ifneq ($($(my_prefix)OS),windows)
-    ifeq ($(my_clang),)
-        my_clang := true
-    endif
+    ifeq ($($(my_prefix)OS),windows)
+        ifeq ($(my_clang),true)
+            $(error $(LOCAL_MODULE_MAKEFILE): $(LOCAL_MODULE): Clang is not yet supported for windows binaries)
+        endif
+        my_clang := false
+    else
+        ifeq ($(my_clang),)
+            my_clang := true
+        endif
     endif
 # Add option to make clang the default for device build
 else ifeq ($(USE_CLANG_PLATFORM_BUILD),true)
@@ -528,7 +540,7 @@
 
 my_gen_sources_copy := $(patsubst $(generated_sources_dir)/%,$(intermediates)/%,$(filter $(generated_sources_dir)/%,$(my_generated_sources)))
 
-$(my_gen_sources_copy): $(intermediates)/% : $(generated_sources_dir)/% | $(ACP)
+$(my_gen_sources_copy): $(intermediates)/% : $(generated_sources_dir)/%
 	@echo "Copy: $@"
 	$(copy-file-to-target)
 
@@ -632,21 +644,23 @@
 ifneq ($(proto_sources),)
 proto_generated_sources_dir := $(generated_sources_dir)/proto
 proto_generated_obj_dir := $(intermediates)/proto
+proto_sources_fullpath := $(addprefix $(LOCAL_PATH)/, $(proto_sources))
 
 ifneq (,$(filter nanopb-c nanopb-c-enable_malloc, $(LOCAL_PROTOC_OPTIMIZE_TYPE)))
 my_proto_source_suffix := .c
 my_proto_c_includes := external/nanopb-c
 my_protoc_flags := --nanopb_out=$(proto_generated_sources_dir) \
     --plugin=external/nanopb-c/generator/protoc-gen-nanopb
+my_protoc_deps := $(NANOPB_SRCS) $(proto_sources_fullpath:%.proto=%.options)
 else
 my_proto_source_suffix := .cc
 my_proto_c_includes := external/protobuf/src
 my_cflags += -DGOOGLE_PROTOBUF_NO_RTTI
 my_protoc_flags := --cpp_out=$(proto_generated_sources_dir)
+my_protoc_deps :=
 endif
 my_proto_c_includes += $(proto_generated_sources_dir)
 
-proto_sources_fullpath := $(addprefix $(LOCAL_PATH)/, $(proto_sources))
 proto_generated_sources := $(addprefix $(proto_generated_sources_dir)/, \
     $(patsubst %.proto,%.pb$(my_proto_source_suffix),$(proto_sources_fullpath)))
 proto_generated_headers := $(patsubst %.pb$(my_proto_source_suffix),%.pb.h, $(proto_generated_sources))
@@ -658,7 +672,7 @@
 ifndef $(my_prefix)_$(LOCAL_MODULE_CLASS)_$(LOCAL_MODULE)_proto_defined
 $(proto_generated_sources): PRIVATE_PROTO_INCLUDES := $(TOP)
 $(proto_generated_sources): PRIVATE_PROTOC_FLAGS := $(LOCAL_PROTOC_FLAGS) $(my_protoc_flags)
-$(proto_generated_sources): $(proto_generated_sources_dir)/%.pb$(my_proto_source_suffix): %.proto $(PROTOC)
+$(proto_generated_sources): $(proto_generated_sources_dir)/%.pb$(my_proto_source_suffix): %.proto $(my_protoc_deps) $(PROTOC)
 	$(transform-proto-to-cc)
 
 # This is just a dummy rule to make sure gmake doesn't skip updating the dependents.
@@ -677,7 +691,7 @@
 else
 	$(transform-$(PRIVATE_HOST)cpp-to-o)
 endif
--include $(proto_generated_objects:%.o=%.P)
+$(call include-depfiles-for-objs, $(proto_generated_objects))
 
 my_c_includes += $(my_proto_c_includes)
 # Auto-export the generated proto source dir.
@@ -797,7 +811,7 @@
     $(intermediates)/,$(y_yacc_sources:.y=.c))
 ifneq ($(y_yacc_cs),)
 $(y_yacc_cs): $(intermediates)/%.c: \
-    $(TOPDIR)$(LOCAL_PATH)/%.y \
+    $(TOPDIR)$(LOCAL_PATH)/%.y $(BISON) $(BISON_DATA) \
     $(my_additional_dependencies)
 	$(call transform-y-to-c-or-cpp)
 $(call track-src-file-gen,$(y_yacc_sources),$(y_yacc_cs))
@@ -810,7 +824,7 @@
     $(intermediates)/,$(yy_yacc_sources:.yy=$(LOCAL_CPP_EXTENSION)))
 ifneq ($(yy_yacc_cpps),)
 $(yy_yacc_cpps): $(intermediates)/%$(LOCAL_CPP_EXTENSION): \
-    $(TOPDIR)$(LOCAL_PATH)/%.yy \
+    $(TOPDIR)$(LOCAL_PATH)/%.yy $(BISON) $(BISON_DATA) \
     $(my_additional_dependencies)
 	$(call transform-y-to-c-or-cpp)
 $(call track-src-file-gen,$(yy_yacc_sources),$(yy_yacc_cpps))
@@ -892,7 +906,7 @@
     $(yacc_cpps) $(proto_generated_headers) \
     $(my_additional_dependencies)
 	$(transform-$(PRIVATE_HOST)cpp-to-o)
--include $(cpp_objects:%.o=%.P)
+$(call include-depfiles-for-objs, $(cpp_objects))
 endif
 
 cpp_objects += $(dotdot_arm_objects) $(dotdot_objects)
@@ -915,7 +929,7 @@
     $(proto_generated_headers) \
     $(my_additional_dependencies)
 	$(transform-$(PRIVATE_HOST)cpp-to-o)
--include $(gen_cpp_objects:%.o=%.P)
+$(call include-depfiles-for-objs, $(gen_cpp_objects))
 endif
 
 ###########################################################
@@ -930,7 +944,7 @@
 $(gen_S_objects): $(intermediates)/%.o: $(intermediates)/%.S \
     $(my_additional_dependencies)
 	$(transform-$(PRIVATE_HOST)s-to-o)
--include $(gen_S_objects:%.o=%.P)
+$(call include-depfiles-for-objs, $(gen_S_objects))
 endif
 
 gen_s_sources := $(filter %.s,$(my_generated_sources))
@@ -941,7 +955,6 @@
 $(gen_s_objects): $(intermediates)/%.o: $(intermediates)/%.s \
     $(my_additional_dependencies)
 	$(transform-$(PRIVATE_HOST)s-to-o-no-deps)
--include $(gen_s_objects:%.o=%.P)
 endif
 
 gen_asm_objects := $(gen_S_objects) $(gen_s_objects)
@@ -995,7 +1008,7 @@
 $(c_objects): $(intermediates)/%.o: $(TOPDIR)$(LOCAL_PATH)/%.c $(yacc_cpps) $(proto_generated_headers) \
     $(my_additional_dependencies)
 	$(transform-$(PRIVATE_HOST)c-to-o)
--include $(c_objects:%.o=%.P)
+$(call include-depfiles-for-objs, $(c_objects))
 endif
 
 c_objects += $(dotdot_arm_objects) $(dotdot_objects)
@@ -1016,7 +1029,7 @@
 $(gen_c_objects): $(intermediates)/%.o: $(intermediates)/%.c $(yacc_cpps) $(proto_generated_headers) \
     $(my_additional_dependencies)
 	$(transform-$(PRIVATE_HOST)c-to-o)
--include $(gen_c_objects:%.o=%.P)
+$(call include-depfiles-for-objs, $(gen_c_objects))
 endif
 
 ###########################################################
@@ -1031,7 +1044,7 @@
 $(objc_objects): $(intermediates)/%.o: $(TOPDIR)$(LOCAL_PATH)/%.m $(yacc_cpps) $(proto_generated_headers) \
     $(my_additional_dependencies)
 	$(transform-$(PRIVATE_HOST)m-to-o)
--include $(objc_objects:%.o=%.P)
+$(call include-depfiles-for-objs, $(objc_objects))
 endif
 
 ###########################################################
@@ -1046,7 +1059,7 @@
 $(objcpp_objects): $(intermediates)/%.o: $(TOPDIR)$(LOCAL_PATH)/%.mm $(yacc_cpps) $(proto_generated_headers) \
     $(my_additional_dependencies)
 	$(transform-$(PRIVATE_HOST)mm-to-o)
--include $(objcpp_objects:%.o=%.P)
+$(call include-depfiles-for-objs, $(objcpp_objects))
 endif
 
 ###########################################################
@@ -1070,7 +1083,7 @@
 $(asm_objects_S): $(intermediates)/%.o: $(TOPDIR)$(LOCAL_PATH)/%.S \
     $(my_additional_dependencies)
 	$(transform-$(PRIVATE_HOST)s-to-o)
--include $(asm_objects_S:%.o=%.P)
+$(call include-depfiles-for-objs, $(asm_objects_S))
 endif
 
 asm_sources_s := $(filter %.s,$(my_src_files))
@@ -1143,7 +1156,7 @@
     $(foreach l, $(my_static_libraries) $(my_whole_static_libraries), \
       $(call intermediates-dir-for,STATIC_LIBRARIES,$(l),$(LOCAL_IS_HOST_MODULE),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))/export_includes))
 $(import_includes): PRIVATE_IMPORT_EXPORT_INCLUDES := $(import_includes_deps)
-$(import_includes) : $(LOCAL_MODULE_MAKEFILE_DEP) $(import_includes_deps)
+$(import_includes) : $(import_includes_deps)
 	@echo Import includes file: $@
 	$(hide) mkdir -p $(dir $@) && rm -f $@
 ifdef import_includes_deps
@@ -1210,11 +1223,7 @@
 # that custom build rules which generate .o files don't consume other generated
 # sources as input (or if they do they take care of that dependency themselves).
 $(normal_objects) : | $(my_generated_sources)
-ifeq ($(BUILDING_WITH_NINJA),true)
 $(all_objects) : $(import_includes)
-else
-$(all_objects) : | $(import_includes)
-endif
 ALL_C_CPP_ETC_OBJECTS += $(all_objects)
 
 
@@ -1329,6 +1338,10 @@
 my_cppflags := $(call $(LOCAL_2ND_ARCH_VAR_PREFIX)convert-to-$(my_host)clang-flags,$(my_cppflags))
 my_asflags := $(call $(LOCAL_2ND_ARCH_VAR_PREFIX)convert-to-$(my_host)clang-flags,$(my_asflags))
 my_ldflags := $(call $(LOCAL_2ND_ARCH_VAR_PREFIX)convert-to-$(my_host)clang-flags,$(my_ldflags))
+else
+# gcc does not handle hidden functions in a manner compatible with LLVM libcxx
+# see b/27908145
+my_cflags += -Wno-attributes
 endif
 
 ifeq ($(my_fdo_build), true)
@@ -1346,6 +1359,21 @@
 my_cppflags := $(filter-out $(my_illegal_flags),$(my_cppflags))
 my_conlyflags := $(filter-out $(my_illegal_flags),$(my_conlyflags))
 
+# We can enforce some rules more strictly in the code we own. my_strict
+# indicates if this is code that we can be stricter with. If we have rules that
+# we want to apply to *our* code (but maybe can't for vendor/device specific
+# things), we could extend this to be a ternary value.
+my_strict := true
+ifneq ($(filter external/%,$(LOCAL_PATH)),)
+    my_strict := false
+endif
+
+# Can be used to make some annotations stricter for code we can fix (such as
+# when we mark functions as deprecated).
+ifeq ($(my_strict),true)
+    my_cflags += -DANDROID_STRICT
+endif
+
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_YACCFLAGS := $(LOCAL_YACCFLAGS)
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ASFLAGS := $(my_asflags)
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_CONLYFLAGS := $(my_conlyflags)
@@ -1365,7 +1393,7 @@
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ALL_SHARED_LIBRARIES := $(built_shared_libraries)
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ALL_STATIC_LIBRARIES := $(built_static_libraries)
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ALL_WHOLE_STATIC_LIBRARIES := $(built_whole_libraries)
-$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ALL_OBJECTS := $(all_objects)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ALL_OBJECTS := $(strip $(all_objects))
 
 ###########################################################
 # Define library dependencies.
@@ -1387,29 +1415,41 @@
 ###########################################################
 export_includes := $(intermediates)/export_includes
 $(export_includes): PRIVATE_EXPORT_C_INCLUDE_DIRS := $(my_export_c_include_dirs)
+# Headers exported by whole static libraries are also exported by this library.
+export_include_deps := $(strip \
+   $(foreach l,$(my_whole_static_libraries), \
+     $(call intermediates-dir-for,STATIC_LIBRARIES,$(l),$(LOCAL_IS_HOST_MODULE),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))/export_includes))
+# Re-export requested headers from shared libraries.
+export_include_deps += $(strip \
+   $(foreach l,$(LOCAL_EXPORT_SHARED_LIBRARY_HEADERS), \
+     $(call intermediates-dir-for,SHARED_LIBRARIES,$(l),$(LOCAL_IS_HOST_MODULE),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))/export_includes))
+# Re-export requested headers from static libraries.
+export_include_deps += $(strip \
+   $(foreach l,$(LOCAL_EXPORT_STATIC_LIBRARY_HEADERS), \
+     $(call intermediates-dir-for,STATIC_LIBRARIES,$(l),$(LOCAL_IS_HOST_MODULE),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))/export_includes))
+$(export_includes): PRIVATE_REEXPORTED_INCLUDES := $(export_include_deps)
 # Make sure .pb.h are already generated before any dependent source files get compiled.
 # Similarly, the generated DBus headers need to exist before we export their location.
 # People are not going to consume the aidl generated cpp file, but the cpp file is
 # generated after the headers, so this is a convenient way to ensure the headers exist.
-$(export_includes) : $(LOCAL_MODULE_MAKEFILE_DEP) $(proto_generated_headers) $(dbus_generated_headers) $(aidl_gen_cpp)
+$(export_includes) : $(proto_generated_headers) $(dbus_generated_headers) $(aidl_gen_cpp) $(export_include_deps)
 	@echo Export includes file: $< -- $@
-	$(hide) mkdir -p $(dir $@) && rm -f $@.tmp
+	$(hide) mkdir -p $(dir $@) && rm -f $@.tmp && touch $@.tmp
 ifdef my_export_c_include_dirs
 	$(hide) for d in $(PRIVATE_EXPORT_C_INCLUDE_DIRS); do \
 	        echo "-I $$d" >> $@.tmp; \
 	        done
-else
-	$(hide) touch $@.tmp
 endif
-ifeq ($(BUILDING_WITH_NINJA),true)
+ifdef export_include_deps
+	$(hide) for f in $(PRIVATE_REEXPORTED_INCLUDES); do \
+		cat $$f >> $@.tmp; \
+		done
+endif
 	$(hide) if cmp -s $@.tmp $@ ; then \
 	  rm $@.tmp ; \
 	else \
 	  mv $@.tmp $@ ; \
 	fi
-else
-	mv $@.tmp $@ ;
-endif
 
 # Kati adds restat=1 to ninja. GNU make does nothing for this.
 .KATI_RESTAT: $(export_includes)
diff --git a/core/clang/HOST_x86_common.mk b/core/clang/HOST_x86_common.mk
index 9e71750..0f4d4a2 100644
--- a/core/clang/HOST_x86_common.mk
+++ b/core/clang/HOST_x86_common.mk
@@ -34,7 +34,7 @@
   -B$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/x86_64-linux/bin \
   -B$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/lib/gcc/x86_64-linux/4.8 \
   -L$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/lib/gcc/x86_64-linux/4.8 \
-  -L$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/x86_64-linux/lib64/
+  -L$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/x86_64-linux/lib64
 else
 CLANG_CONFIG_x86_LINUX_HOST_EXTRA_CPPFLAGS := \
   --gcc-toolchain=$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG) \
@@ -49,6 +49,6 @@
   -B$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/x86_64-linux/bin \
   -B$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/lib/gcc/x86_64-linux/4.8/32 \
   -L$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/lib/gcc/x86_64-linux/4.8/32 \
-  -L$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/x86_64-linux/lib32/
+  -L$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/x86_64-linux/lib32
 endif
 endif  # Linux
diff --git a/core/clang/TARGET_arm.mk b/core/clang/TARGET_arm.mk
index eeffa51..5c1bf6f 100644
--- a/core/clang/TARGET_arm.mk
+++ b/core/clang/TARGET_arm.mk
@@ -61,7 +61,7 @@
   $(call $(clang_2nd_arch_prefix)convert-to-clang-flags,$($(clang_2nd_arch_prefix)TARGET_GLOBAL_LDFLAGS)) \
   $(CLANG_CONFIG_arm_TARGET_EXTRA_LDFLAGS)
 
-$(clang_2nd_arch_prefix)RS_TRIPLE := armv7-none-linux-gnueabi
+$(clang_2nd_arch_prefix)RS_TRIPLE := armv7-linux-androideabi
 $(clang_2nd_arch_prefix)RS_TRIPLE_CFLAGS :=
 $(clang_2nd_arch_prefix)RS_COMPAT_TRIPLE := armv7-none-linux-gnueabi
 
diff --git a/core/clang/TARGET_mips.mk b/core/clang/TARGET_mips.mk
index 15c8d37..c3c808b 100644
--- a/core/clang/TARGET_mips.mk
+++ b/core/clang/TARGET_mips.mk
@@ -60,7 +60,7 @@
   $(call $(clang_2nd_arch_prefix)convert-to-clang-flags,$($(clang_2nd_arch_prefix)TARGET_GLOBAL_LDFLAGS)) \
   $(CLANG_CONFIG_mips_TARGET_EXTRA_LDFLAGS)
 
-$(clang_2nd_arch_prefix)RS_TRIPLE := armv7-none-linux-gnueabi
+$(clang_2nd_arch_prefix)RS_TRIPLE := armv7-linux-androideabi
 $(clang_2nd_arch_prefix)RS_TRIPLE_CFLAGS :=
 RS_COMPAT_TRIPLE := mipsel-linux-android
 
diff --git a/core/clang/TARGET_x86.mk b/core/clang/TARGET_x86.mk
index 9ca86a1..741768b 100644
--- a/core/clang/TARGET_x86.mk
+++ b/core/clang/TARGET_x86.mk
@@ -66,7 +66,7 @@
   $(call $(clang_2nd_arch_prefix)convert-to-clang-flags,$($(clang_2nd_arch_prefix)TARGET_GLOBAL_LDFLAGS)) \
   $(CLANG_CONFIG_x86_TARGET_EXTRA_LDFLAGS)
 
-$(clang_2nd_arch_prefix)RS_TRIPLE := armv7-none-linux-gnueabi
+$(clang_2nd_arch_prefix)RS_TRIPLE := armv7-linux-androideabi
 $(clang_2nd_arch_prefix)RS_TRIPLE_CFLAGS := -D__i386__
 $(clang_2nd_arch_prefix)RS_COMPAT_TRIPLE := i686-linux-android
 
diff --git a/core/clang/config.mk b/core/clang/config.mk
index e1ad3ce..39862be 100644
--- a/core/clang/config.mk
+++ b/core/clang/config.mk
@@ -14,7 +14,7 @@
 # RenderScript-specific tools
 # These are tied to the version of LLVM directly in external/, so they might
 # trail the host prebuilts being used for the rest of the build process.
-RS_LLVM_PREBUILTS_VERSION := 3.8
+RS_LLVM_PREBUILTS_VERSION := clang-2690385
 RS_LLVM_PREBUILTS_BASE := prebuilts/clang/host
 RS_LLVM_PREBUILTS_PATH := $(RS_LLVM_PREBUILTS_BASE)/$(BUILD_OS)-x86/$(RS_LLVM_PREBUILTS_VERSION)/bin
 RS_CLANG := $(RS_LLVM_PREBUILTS_PATH)/clang$(BUILD_EXECUTABLE_SUFFIX)
@@ -90,7 +90,6 @@
   -Wunused-but-set-parameter \
   -Wunused-but-set-variable \
   -fdiagnostics-color \
-  -fdebug-prefix-map=/proc/self/cwd=
 
 # Clang flags for all host rules
 CLANG_CONFIG_HOST_EXTRA_ASFLAGS :=
@@ -168,7 +167,6 @@
 ADDRESS_SANITIZER_CONFIG_EXTRA_CFLAGS := -fno-omit-frame-pointer
 ADDRESS_SANITIZER_CONFIG_EXTRA_LDFLAGS := -Wl,-u,__asan_preinit
 
-ADDRESS_SANITIZER_CONFIG_EXTRA_SHARED_LIBRARIES :=
 ADDRESS_SANITIZER_CONFIG_EXTRA_STATIC_LIBRARIES := libasan
 
 # This allows us to use the superset of functionality that compiler-rt
diff --git a/core/clang/versions.mk b/core/clang/versions.mk
index 7106899..81bd3b8 100644
--- a/core/clang/versions.mk
+++ b/core/clang/versions.mk
@@ -1,5 +1,5 @@
 ## Clang/LLVM release versions.
 
 LLVM_RELEASE_VERSION := 3.8
-LLVM_PREBUILTS_VERSION ?= clang-2577113
+LLVM_PREBUILTS_VERSION ?= clang-2690385
 LLVM_PREBUILTS_BASE ?= prebuilts/clang/host
diff --git a/core/cleanbuild.mk b/core/cleanbuild.mk
index c5b15bc..f61e3f7 100644
--- a/core/cleanbuild.mk
+++ b/core/cleanbuild.mk
@@ -246,14 +246,7 @@
 	$(PRODUCT_OUT)/oem \
 	$(PRODUCT_OUT)/dex_bootjars \
 	$(PRODUCT_OUT)/obj/JAVA_LIBRARIES \
-	$(PRODUCT_OUT)/obj/FAKE \
-	$(PRODUCT_OUT)/obj/EXECUTABLES/adbd_intermediates \
-	$(PRODUCT_OUT)/obj/EXECUTABLES/logd_intermediates \
-	$(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libfs_mgr_intermediates \
-	$(PRODUCT_OUT)/obj/EXECUTABLES/init_intermediates \
-	$(PRODUCT_OUT)/obj/ETC/mac_permissions.xml_intermediates \
-	$(PRODUCT_OUT)/obj/ETC/sepolicy_intermediates \
-	$(PRODUCT_OUT)/obj/ETC/init.environ.rc_intermediates
+	$(PRODUCT_OUT)/obj/FAKE
 
 # The files/dirs to delete during a dataclean, which removes any files
 # in the staging and emulator data partitions.
diff --git a/core/clear_vars.mk b/core/clear_vars.mk
index 0267321..c3d390f 100644
--- a/core/clear_vars.mk
+++ b/core/clear_vars.mk
@@ -25,7 +25,6 @@
 LOCAL_MANIFEST_PACKAGE_NAME:=
 LOCAL_PACKAGE_SPLITS:=
 LOCAL_REQUIRED_MODULES:=
-LOCAL_ACP_UNAVAILABLE:=
 LOCAL_MODULE_TAGS:=
 LOCAL_SRC_FILES:=
 LOCAL_SRC_FILES_EXCLUDE:=
@@ -36,6 +35,8 @@
 # Group static libraries with "-Wl,--start-group" and "-Wl,--end-group" when linking.
 LOCAL_GROUP_STATIC_LIBRARIES:=
 LOCAL_WHOLE_STATIC_LIBRARIES:=
+LOCAL_EXPORT_SHARED_LIBRARY_HEADERS:=
+LOCAL_EXPORT_STATIC_LIBRARY_HEADERS:=
 LOCAL_SHARED_LIBRARIES:=
 LOCAL_IS_HOST_MODULE:=
 LOCAL_CC:=
@@ -107,12 +108,14 @@
 LOCAL_JARJAR_RULES:=
 LOCAL_ADDITIONAL_JAVA_DIR:=
 LOCAL_ALLOW_UNDEFINED_SYMBOLS:=
-LOCAL_DX_FLAGS:=
-LOCAL_JACK_ENABLED:=$(DEFAULT_JACK_ENABLED) # '' (ie disabled), disabled, full, incremental
+# full or incremental
+LOCAL_JACK_ENABLED:=full
 LOCAL_JACK_FLAGS:=
-LOCAL_JILL_FLAGS:=
+LOCAL_JACK_COVERAGE_INCLUDE_FILTER:=
+LOCAL_JACK_COVERAGE_EXCLUDE_FILTER:=
 LOCAL_CERTIFICATE:=
 LOCAL_SDK_VERSION:=
+LOCAL_MIN_SDK_VERSION:=
 LOCAL_SDK_RES_VERSION:=
 LOCAL_NDK_STL_VARIANT:=
 LOCAL_EMMA_INSTRUMENT:=
@@ -154,7 +157,6 @@
 LOCAL_SOURCE_FILES_ALL_GENERATED:= # '',true
 # Don't delete the META_INF dir when merging static Java libraries.
 LOCAL_DONT_DELETE_JAR_META_INF:=
-LOCAL_DONT_DELETE_JAR_DIRS:=
 LOCAL_ADDITIONAL_CERTIFICATES:=
 LOCAL_PREBUILT_MODULE_FILE:=
 LOCAL_POST_LINK_CMD:=
@@ -188,6 +190,10 @@
 LOCAL_INIT_RC:=
 LOCAL_MODULE_HOST_OS:=
 LOCAL_NOTICE_FILE:=
+# Used to replace the installed file of a presigned prebuilt apk in PDK fusion build,
+# to avoid installing the presigned apks with classes.dex unstripped.
+LOCAL_REPLACE_PREBUILT_APK_INSTALLED:=
+LOCAL_NDK_VERSION:=current
 
 # arch specific variables
 LOCAL_SRC_FILES_$(TARGET_ARCH):=
@@ -208,6 +214,8 @@
 LOCAL_REQUIRED_MODULES_$(TARGET_ARCH):=
 LOCAL_CLANG_$(TARGET_ARCH):=
 LOCAL_PREBUILT_JNI_LIBS_$(TARGET_ARCH):=
+LOCAL_STRIP_MODULE_$(TARGET_ARCH):=
+LOCAL_PACK_MODULE_RELOCATIONS_$(TARGET_ARCH):=
 ifdef TARGET_2ND_ARCH
 LOCAL_SRC_FILES_$(TARGET_2ND_ARCH):=
 LOCAL_SRC_FILES_EXCLUDE_$(TARGET_2ND_ARCH):=
@@ -227,6 +235,8 @@
 LOCAL_REQUIRED_MODULES_$(TARGET_2ND_ARCH):=
 LOCAL_CLANG_$(TARGET_2ND_ARCH):=
 LOCAL_PREBUILT_JNI_LIBS_$(TARGET_2ND_ARCH):=
+LOCAL_STRIP_MODULE_$(TARGET_2ND_ARCH):=
+LOCAL_PACK_MODULE_RELOCATIONS_$(TARGET_2ND_ARCH):=
 endif
 LOCAL_SRC_FILES_$(HOST_ARCH):=
 LOCAL_SRC_FILES_EXCLUDE_$(HOST_ARCH):=
diff --git a/core/combo/HOST_darwin-x86.mk b/core/combo/HOST_darwin-x86.mk
index fc56e52..ea384b4 100644
--- a/core/combo/HOST_darwin-x86.mk
+++ b/core/combo/HOST_darwin-x86.mk
@@ -32,7 +32,7 @@
 include $(BUILD_COMBOS)/mac_version.mk
 
 $(combo_2nd_arch_prefix)HOST_TOOLCHAIN_ROOT := prebuilts/gcc/darwin-x86/host/i686-apple-darwin-4.2.1
-$(combo_2nd_arch_prefix)HOST_TOOLCHAIN_PREFIX := $($(combo_2nd_arch_prefix)HOST_TOOLCHAIN_ROOT)/bin/i686-apple-darwin$(gcc_darwin_version)
+$(combo_2nd_arch_prefix)HOST_TOOLCHAIN_PREFIX := $($(combo_2nd_arch_prefix)HOST_TOOLCHAIN_ROOT)/bin/i686-apple-darwin11
 $(combo_2nd_arch_prefix)HOST_CC  := $($(combo_2nd_arch_prefix)HOST_TOOLCHAIN_PREFIX)-gcc
 $(combo_2nd_arch_prefix)HOST_CXX := $($(combo_2nd_arch_prefix)HOST_TOOLCHAIN_PREFIX)-g++
 
@@ -44,10 +44,9 @@
 # HOST_TOOLCHAIN_ROOT is a Darwin-specific define
 $(combo_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG := $($(combo_2nd_arch_prefix)HOST_TOOLCHAIN_ROOT)
 
-$(combo_2nd_arch_prefix)HOST_AR := $(AR)
+$(combo_2nd_arch_prefix)HOST_AR := $(mac_sdk_path)/Toolchains/XcodeDefault.xctoolchain/usr/bin/ar
 
 $(combo_2nd_arch_prefix)HOST_GLOBAL_CFLAGS += -isysroot $(mac_sdk_root) -mmacosx-version-min=$(mac_sdk_version) -DMACOSX_DEPLOYMENT_TARGET=$(mac_sdk_version)
-$(combo_2nd_arch_prefix)HOST_GLOBAL_CPPFLAGS += -isystem $(mac_sdk_path)/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1
 $(combo_2nd_arch_prefix)HOST_GLOBAL_LDFLAGS += -isysroot $(mac_sdk_root) -Wl,-syslibroot,$(mac_sdk_root) -mmacosx-version-min=$(mac_sdk_version)
 
 $(combo_2nd_arch_prefix)HOST_GLOBAL_CFLAGS += -fPIC -funwind-tables
@@ -58,6 +57,10 @@
 
 $(combo_2nd_arch_prefix)HOST_GLOBAL_ARFLAGS := cqs
 
+# Use Darwin's libc++, as Darwin's libstdc++ is old and does not support C++11
+$(combo_2nd_arch_prefix)HOST_SYSTEMCPP_CPPFLAGS := -isystem $(mac_sdk_path)/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1
+$(combo_2nd_arch_prefix)HOST_SYSTEMCPP_LDFLAGS := -stdlib=libc++
+
 ############################################################
 ## Macros after this line are shared by the 64-bit config.
 
diff --git a/core/combo/HOST_darwin-x86_64.mk b/core/combo/HOST_darwin-x86_64.mk
index 251455f..eee2ee5 100644
--- a/core/combo/HOST_darwin-x86_64.mk
+++ b/core/combo/HOST_darwin-x86_64.mk
@@ -32,7 +32,7 @@
 include $(BUILD_COMBOS)/mac_version.mk
 
 HOST_TOOLCHAIN_ROOT := prebuilts/gcc/darwin-x86/host/i686-apple-darwin-4.2.1
-HOST_TOOLCHAIN_PREFIX := $(HOST_TOOLCHAIN_ROOT)/bin/i686-apple-darwin$(gcc_darwin_version)
+HOST_TOOLCHAIN_PREFIX := $(HOST_TOOLCHAIN_ROOT)/bin/i686-apple-darwin11
 HOST_CC  := $(HOST_TOOLCHAIN_PREFIX)-gcc
 HOST_CXX := $(HOST_TOOLCHAIN_PREFIX)-g++
 
@@ -44,10 +44,9 @@
 # HOST_TOOLCHAIN_ROOT is a Darwin-specific define
 HOST_TOOLCHAIN_FOR_CLANG := $(HOST_TOOLCHAIN_ROOT)
 
-HOST_AR := $(AR)
+HOST_AR := $(mac_sdk_path)/Toolchains/XcodeDefault.xctoolchain/usr/bin/ar
 
 HOST_GLOBAL_CFLAGS += -isysroot $(mac_sdk_root) -mmacosx-version-min=$(mac_sdk_version) -DMACOSX_DEPLOYMENT_TARGET=$(mac_sdk_version)
-HOST_GLOBAL_CPPFLAGS += -isystem $(mac_sdk_path)/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1
 HOST_GLOBAL_LDFLAGS += -isysroot $(mac_sdk_root) -Wl,-syslibroot,$(mac_sdk_root) -mmacosx-version-min=$(mac_sdk_version)
 
 HOST_GLOBAL_CFLAGS += -fPIC -funwind-tables
@@ -58,6 +57,10 @@
 
 HOST_GLOBAL_ARFLAGS := cqs
 
+# Use Darwin's libc++, as Darwin's libstdc++ is old and does not support C++11
+HOST_SYSTEMCPP_CPPFLAGS := -isystem $(mac_sdk_path)/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1
+HOST_SYSTEMCPP_LDFLAGS := -stdlib=libc++
+
 # We Reuse the following functions with the same name from HOST_darwin-x86.mk:
 # transform-host-o-to-shared-lib-inner
 # transform-host-o-to-executable-inner
diff --git a/core/combo/TARGET_linux-arm.mk b/core/combo/TARGET_linux-arm.mk
index 510aae5..d89a2cf 100644
--- a/core/combo/TARGET_linux-arm.mk
+++ b/core/combo/TARGET_linux-arm.mk
@@ -155,7 +155,6 @@
 			-frename-registers
 
 libc_root := bionic/libc
-libm_root := bionic/libm
 
 
 ## on some hosts, the target cross-compiler is not available so do not run this command
@@ -180,8 +179,6 @@
 	$(libc_root)/arch-arm/include \
 	$(libc_root)/include \
 	$(KERNEL_HEADERS) \
-	$(libm_root)/include \
-	$(libm_root)/include/arm \
 
 $(combo_2nd_arch_prefix)TARGET_CRTBEGIN_STATIC_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o
 $(combo_2nd_arch_prefix)TARGET_CRTBEGIN_DYNAMIC_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o
diff --git a/core/combo/TARGET_linux-arm64.mk b/core/combo/TARGET_linux-arm64.mk
index 6a1d861..9ff4981 100644
--- a/core/combo/TARGET_linux-arm64.mk
+++ b/core/combo/TARGET_linux-arm64.mk
@@ -135,7 +135,6 @@
 			-frename-registers
 
 libc_root := bionic/libc
-libm_root := bionic/libm
 
 TARGET_LIBGCC := $(shell $(TARGET_CC) $(TARGET_GLOBAL_CFLAGS) \
 	-print-libgcc-file-name)
@@ -153,8 +152,6 @@
 	$(libc_root)/arch-arm64/include \
 	$(libc_root)/include \
 	$(KERNEL_HEADERS) \
-	$(libm_root)/include \
-	$(libm_root)/include/arm64 \
 
 TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o
 TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o
diff --git a/core/combo/TARGET_linux-mips.mk b/core/combo/TARGET_linux-mips.mk
index 186d88f..fcf4c9d 100644
--- a/core/combo/TARGET_linux-mips.mk
+++ b/core/combo/TARGET_linux-mips.mk
@@ -126,7 +126,6 @@
 			-frename-registers
 
 libc_root := bionic/libc
-libm_root := bionic/libm
 
 
 ## on some hosts, the target cross-compiler is not available so do not run this command
@@ -155,8 +154,6 @@
 	$(libc_root)/arch-mips/include \
 	$(libc_root)/include \
 	$(KERNEL_HEADERS) \
-	$(libm_root)/include \
-	$(libm_root)/include/mips \
 
 $(combo_2nd_arch_prefix)TARGET_CRTBEGIN_STATIC_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o
 $(combo_2nd_arch_prefix)TARGET_CRTBEGIN_DYNAMIC_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o
diff --git a/core/combo/TARGET_linux-mips64.mk b/core/combo/TARGET_linux-mips64.mk
index 3e1f61a..f869317 100644
--- a/core/combo/TARGET_linux-mips64.mk
+++ b/core/combo/TARGET_linux-mips64.mk
@@ -132,7 +132,6 @@
 			-frename-registers
 
 libc_root := bionic/libc
-libm_root := bionic/libm
 
 
 ## on some hosts, the target cross-compiler is not available so do not run this command
@@ -162,10 +161,6 @@
 	$(libc_root)/arch-mips64/include \
 	$(libc_root)/include \
 	$(KERNEL_HEADERS) \
-	$(libm_root)/include \
-	$(libm_root)/include/mips \
-
-# TODO: perhaps use $(libm_root)/include/mips64 instead of mips ?
 
 TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o
 TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o
diff --git a/core/combo/TARGET_linux-x86.mk b/core/combo/TARGET_linux-x86.mk
index 558ec3b..800a1dd 100644
--- a/core/combo/TARGET_linux-x86.mk
+++ b/core/combo/TARGET_linux-x86.mk
@@ -74,7 +74,6 @@
 $(combo_2nd_arch_prefix)TARGET_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined
 
 libc_root := bionic/libc
-libm_root := bionic/libm
 
 KERNEL_HEADERS_COMMON := $(libc_root)/kernel/uapi
 KERNEL_HEADERS_COMMON += $(libc_root)/kernel/common
@@ -135,8 +134,6 @@
 	$(libc_root)/arch-x86/include \
 	$(libc_root)/include \
 	$(KERNEL_HEADERS) \
-	$(libm_root)/include \
-	$(libm_root)/include/i387 \
 
 $(combo_2nd_arch_prefix)TARGET_CRTBEGIN_STATIC_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o
 $(combo_2nd_arch_prefix)TARGET_CRTBEGIN_DYNAMIC_O := $($(combo_2nd_arch_prefix)TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o
diff --git a/core/combo/TARGET_linux-x86_64.mk b/core/combo/TARGET_linux-x86_64.mk
index 12166ec..bf31334 100644
--- a/core/combo/TARGET_linux-x86_64.mk
+++ b/core/combo/TARGET_linux-x86_64.mk
@@ -74,7 +74,6 @@
 TARGET_NO_UNDEFINED_LDFLAGS := -Wl,--no-undefined
 
 libc_root := bionic/libc
-libm_root := bionic/libm
 
 KERNEL_HEADERS_COMMON := $(libc_root)/kernel/uapi
 KERNEL_HEADERS_COMMON += $(libc_root)/kernel/common
@@ -144,8 +143,6 @@
 	$(libc_root)/arch-x86_64/include \
 	$(libc_root)/include \
 	$(KERNEL_HEADERS) \
-	$(libm_root)/include \
-	$(libm_root)/include/amd64 \
 
 TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_static.o
 TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/crtbegin_dynamic.o
diff --git a/core/combo/arch/arm/armv7-a-neon.mk b/core/combo/arch/arm/armv7-a-neon.mk
index 5dc1fec..5d5b050 100644
--- a/core/combo/arch/arm/armv7-a-neon.mk
+++ b/core/combo/arch/arm/armv7-a-neon.mk
@@ -6,6 +6,8 @@
 ARCH_ARM_HAVE_VFP_D32           := true
 ARCH_ARM_HAVE_NEON              := true
 
+local_arch_has_lpae := false
+
 ifneq (,$(filter cortex-a15 krait denver,$(TARGET_$(combo_2nd_arch_prefix)CPU_VARIANT)))
 	# TODO: krait is not a cortex-a15, we set the variant to cortex-a15 so that
 	#       hardware divide operations are generated. This should be removed and a
@@ -13,9 +15,7 @@
 	#       core/clang/arm.mk.
 	arch_variant_cflags := -mcpu=cortex-a15
 
-	# Fake an ARM compiler flag as these processors support LPAE which GCC/clang
-	# don't advertise.
-	arch_variant_cflags += -D__ARM_FEATURE_LPAE=1
+	local_arch_has_lpae := true
 	arch_variant_ldflags := \
 		-Wl,--no-fix-cortex-a8
 else
@@ -26,6 +26,8 @@
 else
 ifneq (,$(filter cortex-a7 cortex-a53 cortex-a53.a57,$(TARGET_$(combo_2nd_arch_prefix)CPU_VARIANT)))
 	arch_variant_cflags := -mcpu=cortex-a7
+
+	local_arch_has_lpae := true
 	arch_variant_ldflags := \
 		-Wl,--no-fix-cortex-a8
 else
@@ -37,6 +39,16 @@
 endif
 endif
 
+ifeq (true,$(local_arch_has_lpae))
+	# Fake an ARM compiler flag as these processors support LPAE which GCC/clang
+	# don't advertise.
+	# TODO This is a hack and we need to add it for each processor that supports LPAE until some
+	# better solution comes around. See Bug 27340895
+	arch_variant_cflags += -D__ARM_FEATURE_LPAE=1
+endif
+
+local_arch_has_lpae :=
+
 arch_variant_cflags += \
     -mfloat-abi=softfp \
     -mfpu=neon
diff --git a/core/combo/arch/x86/sandybridge.mk b/core/combo/arch/x86/sandybridge.mk
index bca5953..830e1db 100644
--- a/core/combo/arch/x86/sandybridge.mk
+++ b/core/combo/arch/x86/sandybridge.mk
@@ -5,13 +5,13 @@
 ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
 ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AES_NI := true
-ARCH_X86_HAVE_AVX    := true
+ARCH_X86_HAVE_AES_NI := false
+ARCH_X86_HAVE_AVX    := false
 ARCH_X86_HAVE_POPCNT := true
 ARCH_X86_HAVE_MOVBE  := false
 
 # CFLAGS for this arch
 arch_variant_cflags := \
-	-march=corei7-avx \
+	-march=corei7 \
 	-mfpmath=sse \
 
diff --git a/core/combo/arch/x86_64/sandybridge.mk b/core/combo/arch/x86_64/sandybridge.mk
index 865548c..574ec8a 100644
--- a/core/combo/arch/x86_64/sandybridge.mk
+++ b/core/combo/arch/x86_64/sandybridge.mk
@@ -5,11 +5,11 @@
 ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
 ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AES_NI := true
-ARCH_X86_HAVE_AVX    := true
+ARCH_X86_HAVE_AES_NI := false
+ARCH_X86_HAVE_AVX    := false
 ARCH_X86_HAVE_POPCNT := true
 ARCH_X86_HAVE_MOVBE  := false
 
 # CFLAGS for this arch
 arch_variant_cflags := \
-	-march=corei7-avx
+	-march=corei7
diff --git a/core/combo/javac.mk b/core/combo/javac.mk
index 7f66ea8..9042d83 100644
--- a/core/combo/javac.mk
+++ b/core/combo/javac.mk
@@ -9,11 +9,6 @@
 #   COMMON_JAVAC -- Java compiler command with common arguments
 #
 
-ifndef ANDROID_COMPILE_WITH_JACK
-# Defines if compilation with jack is enabled by default.
-ANDROID_COMPILE_WITH_JACK := true
-endif
-
 common_jdk_flags := -Xmaxerrs 9999999
 
 # Use the indexer wrapper to index the codebase instead of the javac compiler
diff --git a/core/combo/mac_version.mk b/core/combo/mac_version.mk
index f6bd852..380aabe 100644
--- a/core/combo/mac_version.mk
+++ b/core/combo/mac_version.mk
@@ -5,6 +5,13 @@
 #   mac_sdk_root
 #   gcc_darwin_version
 
+# You can no longer install older SDKs in newer xcode versions, so it appears
+# to be expected to use the newer SDKs, but set command line flags in order to
+# target older Mac OS X versions.
+#
+# We'll use the oldest SDK we can find, and then use the -mmacosx-version-min
+# and MACOSX_DEPLOYMENT_TARGET flags to set our minimum version.
+
 ifndef build_mac_version
 
 build_mac_version := $(shell sw_vers -productVersion)
@@ -31,20 +38,13 @@
 #  or /Volume/Xcode/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.?.sdk
 mac_sdk_root := $(mac_sdk_path)/Platforms/MacOSX.platform/Developer/SDKs/MacOSX$(mac_sdk_version).sdk
 ifeq ($(wildcard $(mac_sdk_root)),)
-# try legacy /Developer/SDKs/MacOSX10.?.sdk
-mac_sdk_root := /Developer/SDKs/MacOSX$(mac_sdk_version).sdk
-endif
-ifeq ($(wildcard $(mac_sdk_root)),)
 $(warning *****************************************************)
 $(warning * Can not find SDK $(mac_sdk_version) at $(mac_sdk_root))
 $(warning *****************************************************)
 $(error Stop.)
 endif
 
-ifeq ($(mac_sdk_version),10.6)
-  gcc_darwin_version := 10
-else
-  gcc_darwin_version := 11
-endif
+# Set to the minimum version of OS X that we want to run on.
+mac_sdk_version := $(firstword $(mac_sdk_versions_supported))
 
 endif  # ifndef build_mac_version
diff --git a/core/config.mk b/core/config.mk
index 85a4ca1..e63a135 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -36,7 +36,6 @@
 export PYTHONDONTWRITEBYTECODE := 1
 
 # Standard source directories.
-SRC_DOCS:= $(TOPDIR)docs
 # TODO: Enforce some kind of layering; only add include paths
 #       when a module links against a particular library.
 # TODO: See if we can remove most of these from the global list.
@@ -51,9 +50,6 @@
 	$(TOPDIR)frameworks/native/opengl/include \
 	$(TOPDIR)frameworks/av/include \
 	$(TOPDIR)frameworks/base/include
-SRC_HOST_HEADERS:=$(TOPDIR)tools/include
-SRC_LIBRARIES:= $(TOPDIR)libs
-SRC_SERVERS:= $(TOPDIR)servers
 SRC_TARGET_DIR := $(TOPDIR)build/target
 SRC_API_DIR := $(TOPDIR)prebuilts/sdk/api
 SRC_SYSTEM_API_DIR := $(TOPDIR)prebuilts/sdk/system-api
@@ -443,9 +439,13 @@
 endif
 endif
 
+BUILD_PLATFORM_ZIP := $(filter platform platform-java,$(MAKECMDGOALS))
+
 #
 # Tools that are prebuilts for TARGET_BUILD_APPS
 #
+prebuilt_sdk_tools := prebuilts/sdk/tools
+prebuilt_sdk_tools_bin := $(prebuilt_sdk_tools)/$(HOST_OS)/bin
 
 ACP := $(HOST_OUT_EXECUTABLES)/acp
 AIDL := $(HOST_OUT_EXECUTABLES)/aidl
@@ -459,13 +459,14 @@
 DX := $(HOST_OUT_EXECUTABLES)/dx
 MAINDEXCLASSES := $(HOST_OUT_EXECUTABLES)/mainDexClasses
 
+# Always use prebuilts for ckati and makeparallel
+CKATI := $(prebuilt_sdk_tools_bin)/ckati
+MAKEPARALLEL := $(prebuilt_sdk_tools_bin)/makeparallel
+
 USE_PREBUILT_SDK_TOOLS_IN_PLACE := true
 
 # Override the definitions above for unbundled and PDK builds
 ifneq (,$(TARGET_BUILD_APPS)$(filter true,$(TARGET_BUILD_PDK)))
-prebuilt_sdk_tools := prebuilts/sdk/tools
-prebuilt_sdk_tools_bin := $(prebuilt_sdk_tools)/$(HOST_OS)/bin
-
 ACP := $(prebuilt_sdk_tools_bin)/acp
 AIDL := $(prebuilt_sdk_tools_bin)/aidl
 AAPT := $(prebuilt_sdk_tools_bin)/aapt
@@ -483,13 +484,13 @@
 BCC_COMPAT := $(prebuilt_sdk_tools_bin)/bcc_compat
 endif # TARGET_BUILD_PDK
 endif # TARGET_BUILD_APPS || TARGET_BUILD_PDK
+prebuilt_sdk_tools :=
+prebuilt_sdk_tools_bin :=
 
 
 # ---------------------------------------------------------------
 # Generic tools.
 JACK := $(HOST_OUT_EXECUTABLES)/jack
-JACK_JAR := $(HOST_OUT_JAVA_LIBRARIES)/jack.jar
-JILL_JAR := $(HOST_OUT_JAVA_LIBRARIES)/jill.jar
 
 LEX := prebuilts/misc/$(BUILD_OS)-$(HOST_PREBUILT_ARCH)/flex/flex-2.5.39
 # The default PKGDATADIR built in the prebuilt bison is a relative path
@@ -499,6 +500,7 @@
 BISON_PKGDATADIR := $(PWD)/external/bison/data
 BISON := prebuilts/misc/$(BUILD_OS)-$(HOST_PREBUILT_ARCH)/bison/bison
 YACC := $(BISON) -d
+BISON_DATA := $(wildcard external/bison/data/* external/bison/data/*/*)
 
 YASM := prebuilts/misc/$(BUILD_OS)-$(HOST_PREBUILT_ARCH)/yasm/yasm
 
@@ -511,6 +513,10 @@
 BREAKPAD_GENERATE_SYMBOLS := false
 endif
 PROTOC := $(HOST_OUT_EXECUTABLES)/aprotoc$(HOST_EXECUTABLE_SUFFIX)
+NANOPB_SRCS := external/nanopb-c/generator/protoc-gen-nanopb \
+    $(wildcard external/nanopb-c/generator/*.py \
+               external/nanopb-c/generator/google/*.py \
+               external/nanopb-c/generator/proto/*.py)
 DBUS_GENERATOR := $(HOST_OUT_EXECUTABLES)/dbus-binding-generator
 MKBOOTFS := $(HOST_OUT_EXECUTABLES)/mkbootfs$(HOST_EXECUTABLE_SUFFIX)
 MINIGZIP := $(HOST_OUT_EXECUTABLES)/minigzip$(HOST_EXECUTABLE_SUFFIX)
@@ -519,17 +525,22 @@
 else
 MKBOOTIMG := $(BOARD_CUSTOM_MKBOOTIMG)
 endif
+ifeq (,$(strip $(BOARD_CUSTOM_BPTTOOL)))
+BPTTOOL := $(HOST_OUT_EXECUTABLES)/bpttool$(HOST_EXECUTABLE_SUFFIX)
+else
+BPTTOOL := $(BOARD_CUSTOM_BPTTOOL)
+endif
+ifeq (,$(strip $(BOARD_CUSTOM_BVBTOOL)))
+BVBTOOL := $(HOST_OUT_EXECUTABLES)/bvbtool$(HOST_EXECUTABLE_SUFFIX)
+else
+BVBTOOL := $(BOARD_CUSTOM_BVBTOOL)
+endif
 APICHECK := $(HOST_OUT_EXECUTABLES)/apicheck$(HOST_EXECUTABLE_SUFFIX)
 FS_GET_STATS := $(HOST_OUT_EXECUTABLES)/fs_get_stats$(HOST_EXECUTABLE_SUFFIX)
 MAKE_EXT4FS := $(HOST_OUT_EXECUTABLES)/make_ext4fs$(HOST_EXECUTABLE_SUFFIX)
 MKEXTUSERIMG := $(HOST_OUT_EXECUTABLES)/mkuserimg.sh
-ifeq ($(HOST_OS),linux)
 MAKE_SQUASHFS := $(HOST_OUT_EXECUTABLES)/mksquashfs$(HOST_EXECUTABLE_SUFFIX)
 MKSQUASHFSUSERIMG := $(HOST_OUT_EXECUTABLES)/mksquashfsimage.sh
-else
-MAKE_SQUASHFS :=
-MKSQUASHFSUSERIMG :=
-endif
 MAKE_F2FS := $(HOST_OUT_EXECUTABLES)/make_f2fs$(HOST_EXECUTABLE_SUFFIX)
 MKF2FSUSERIMG := $(HOST_OUT_EXECUTABLES)/mkf2fsuserimg.sh
 SIMG2IMG := $(HOST_OUT_EXECUTABLES)/simg2img$(HOST_EXECUTABLE_SUFFIX)
@@ -537,26 +548,21 @@
 E2FSCK := $(HOST_OUT_EXECUTABLES)/e2fsck$(HOST_EXECUTABLE_SUFFIX)
 MKTARBALL := build/tools/mktarball.sh
 TUNE2FS := $(HOST_OUT_EXECUTABLES)/tune2fs$(HOST_EXECUTABLE_SUFFIX)
-E2FSCK := $(HOST_OUT_EXECUTABLES)/e2fsck$(HOST_EXECUTABLE_SUFFIX)
 JARJAR := $(HOST_OUT_JAVA_LIBRARIES)/jarjar.jar
 
-ifeq ($(ANDROID_COMPILE_WITH_JACK),true)
-DEFAULT_JACK_ENABLED:=full
-else
-DEFAULT_JACK_ENABLED:=
-endif
 ifneq ($(ANDROID_JACK_EXTRA_ARGS),)
+JACK_DEFAULT_ARGS :=
 DEFAULT_JACK_EXTRA_ARGS := $(ANDROID_JACK_EXTRA_ARGS)
 else
-DEFAULT_JACK_EXTRA_ARGS := @$(BUILD_SYSTEM)/jack-default.args
+JACK_DEFAULT_ARGS := $(BUILD_SYSTEM)/jack-default.args
+DEFAULT_JACK_EXTRA_ARGS := @$(JACK_DEFAULT_ARGS)
 endif
 # Turn off jack warnings by default.
 DEFAULT_JACK_EXTRA_ARGS += --verbose error
 
-JILL := java -Xmx3500m -jar $(JILL_JAR)
 PROGUARD := external/proguard/bin/proguard.sh
 JAVATAGS := build/tools/java-event-log-tags.py
-RMTYPEDEFS := $(HOST_OUT_EXECUTABLES)/rmtypedefs
+MERGETAGS := build/tools/merge-event-log-tags.py
 APPEND2SIMG := $(HOST_OUT_EXECUTABLES)/append2simg
 VERITY_SIGNER := $(HOST_OUT_EXECUTABLES)/verity_signer
 BUILD_VERITY_TREE := $(HOST_OUT_EXECUTABLES)/build_verity_tree
@@ -702,7 +708,7 @@
 HOST_GLOBAL_LD_DIRS += -L$(HOST_OUT_INTERMEDIATE_LIBRARIES)
 TARGET_GLOBAL_LD_DIRS += -L$(TARGET_OUT_INTERMEDIATE_LIBRARIES)
 
-HOST_PROJECT_INCLUDES:= $(SRC_HEADERS) $(SRC_HOST_HEADERS) $(HOST_OUT_HEADERS)
+HOST_PROJECT_INCLUDES:= $(SRC_HEADERS) $(HOST_OUT_HEADERS)
 TARGET_PROJECT_INCLUDES:= $(SRC_HEADERS) $(TARGET_OUT_HEADERS) \
 		$(TARGET_DEVICE_KERNEL_HEADERS) $(TARGET_BOARD_KERNEL_HEADERS) \
 		$(TARGET_PRODUCT_KERNEL_HEADERS)
@@ -747,7 +753,7 @@
 HOST_CROSS_GLOBAL_CPPFLAGS += $(COMMON_GLOBAL_CPPFLAGS)
 HOST_CROSS_RELEASE_CPPFLAGS += $(COMMON_RELEASE_CPPFLAGS)
 HOST_CROSS_GLOBAL_LD_DIRS += -L$(HOST_CROSS_OUT_INTERMEDIATE_LIBRARIES)
-HOST_CROSS_PROJECT_INCLUDES:= $(SRC_HEADERS) $(SRC_HOST_HEADERS) $(HOST_CROSS_OUT_HEADERS)
+HOST_CROSS_PROJECT_INCLUDES:= $(SRC_HEADERS) $(HOST_CROSS_OUT_HEADERS)
 HOST_CROSS_GLOBAL_CFLAGS += $(HOST_CROSS_RELEASE_CFLAGS)
 HOST_CROSS_GLOBAL_CPPFLAGS += $(HOST_CROSS_RELEASE_CPPFLAGS)
 
@@ -757,7 +763,7 @@
 $(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_GLOBAL_CPPFLAGS += $(COMMON_GLOBAL_CPPFLAGS)
 $(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_RELEASE_CPPFLAGS += $(COMMON_RELEASE_CPPFLAGS)
 $(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_GLOBAL_LD_DIRS += -L$($(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_OUT_INTERMEDIATE_LIBRARIES)
-$(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_PROJECT_INCLUDES:= $(SRC_HEADERS) $(SRC_HOST_HEADERS) $($(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_OUT_HEADERS)
+$(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_PROJECT_INCLUDES:= $(SRC_HEADERS) $($(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_OUT_HEADERS)
 $(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_GLOBAL_CFLAGS += $($(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_RELEASE_CFLAGS)
 $(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_GLOBAL_CPPFLAGS += $($(HOST_CROSS_2ND_ARCH_VAR_PREFIX)HOST_CROSS_RELEASE_CPPFLAGS)
 endif
@@ -850,7 +856,8 @@
 RS_PREBUILT_CLCORE := prebuilts/sdk/renderscript/lib/$(TARGET_ARCH)/librsrt_$(TARGET_ARCH).bc
 RS_PREBUILT_COMPILER_RT := prebuilts/sdk/renderscript/lib/$(TARGET_ARCH)/libcompiler_rt.a
 ifeq (true,$(TARGET_IS_64_BIT))
-RS_PREBUILT_LIBPATH := -L prebuilts/ndk/current/platforms/android-21/arch-$(TARGET_ARCH)/usr/lib
+RS_PREBUILT_LIBPATH := -L prebuilts/ndk/current/platforms/android-21/arch-$(TARGET_ARCH)/usr/lib64 \
+                       -L prebuilts/ndk/current/platforms/android-21/arch-$(TARGET_ARCH)/usr/lib
 else
 RS_PREBUILT_LIBPATH := -L prebuilts/ndk/current/platforms/android-9/arch-$(TARGET_ARCH)/usr/lib
 endif
diff --git a/core/config_sanitizers.mk b/core/config_sanitizers.mk
index 6e96880..3573f0a 100644
--- a/core/config_sanitizers.mk
+++ b/core/config_sanitizers.mk
@@ -100,10 +100,8 @@
   endif
 endif
 
-ifneq ($(filter address,$(my_sanitize)),)
-  # Frame pointer based unwinder in ASan requires ARM frame setup.
-  LOCAL_ARM_MODE := arm
-  my_cflags += $(ADDRESS_SANITIZER_CONFIG_EXTRA_CFLAGS)
+# If local or global modules need ASAN, add linker flags.
+ifneq ($(filter address,$(my_global_sanitize) $(my_sanitize)),)
   my_ldflags += $(ADDRESS_SANITIZER_CONFIG_EXTRA_LDFLAGS)
   ifdef LOCAL_IS_HOST_MODULE
     # -nodefaultlibs (provided with libc++) prevents the driver from linking
@@ -111,12 +109,20 @@
     my_ldlibs += -lm -lpthread
     my_ldflags += -Wl,--no-as-needed
   else
-    my_cflags += -mllvm -asan-globals=0
+    # Add asan libraries unless LOCAL_MODULE is the asan library.
     # ASan runtime library must be the first in the link order.
-    my_shared_libraries := $($(LOCAL_2ND_ARCH_VAR_PREFIX)ADDRESS_SANITIZER_RUNTIME_LIBRARY) \
-                           $(my_shared_libraries) \
-                           $(ADDRESS_SANITIZER_CONFIG_EXTRA_SHARED_LIBRARIES)
-    my_static_libraries += $(ADDRESS_SANITIZER_CONFIG_EXTRA_STATIC_LIBRARIES)
+    ifeq (,$(filter $(LOCAL_MODULE),$($(LOCAL_2ND_ARCH_VAR_PREFIX)ADDRESS_SANITIZER_RUNTIME_LIBRARY)))
+      my_shared_libraries := $($(LOCAL_2ND_ARCH_VAR_PREFIX)ADDRESS_SANITIZER_RUNTIME_LIBRARY) \
+                             $(my_shared_libraries)
+    endif
+    ifeq (,$(filter $(LOCAL_MODULE),$(ADDRESS_SANITIZER_CONFIG_EXTRA_STATIC_LIBRARIES)))
+      my_static_libraries += $(ADDRESS_SANITIZER_CONFIG_EXTRA_STATIC_LIBRARIES)
+    endif
+
+    # Do not add unnecessary dependency in shared libraries.
+    ifeq ($(LOCAL_MODULE_CLASS),SHARED_LIBRARIES)
+      my_ldflags += -Wl,--as-needed
+    endif
 
     my_linker := $($(LOCAL_2ND_ARCH_VAR_PREFIX)ADDRESS_SANITIZER_LINKER)
     # Make sure linker_asan get installed.
@@ -124,6 +130,16 @@
   endif
 endif
 
+# If local module needs ASAN, add compiler flags.
+ifneq ($(filter address,$(my_sanitize)),)
+  # Frame pointer based unwinder in ASan requires ARM frame setup.
+  LOCAL_ARM_MODE := arm
+  my_cflags += $(ADDRESS_SANITIZER_CONFIG_EXTRA_CFLAGS)
+  ifndef LOCAL_IS_HOST_MODULE
+    my_cflags += -mllvm -asan-globals=0
+  endif
+endif
+
 ifneq ($(filter undefined,$(my_sanitize)),)
   ifndef LOCAL_IS_HOST_MODULE
     $(error ubsan is not yet supported on the target)
diff --git a/core/configure_local_jack.mk b/core/configure_local_jack.mk
index 2270c88..446bab7 100644
--- a/core/configure_local_jack.mk
+++ b/core/configure_local_jack.mk
@@ -21,16 +21,9 @@
 LOCAL_JACK_ENABLED := $(strip $(LOCAL_JACK_ENABLED))
 LOCAL_MODULE := $(strip $(LOCAL_MODULE))
 
-ifneq ($(LOCAL_JACK_ENABLED),full)
-ifneq ($(LOCAL_JACK_ENABLED),incremental)
-ifdef LOCAL_JACK_ENABLED
-ifneq ($(LOCAL_JACK_ENABLED),disabled)
+ifeq ($(filter full incremental,$(LOCAL_JACK_ENABLED)),)
 $(error $(LOCAL_PATH): invalid LOCAL_JACK_ENABLED "$(LOCAL_JACK_ENABLED)" for $(LOCAL_MODULE))
 endif
-endif
-LOCAL_JACK_ENABLED :=
-endif
-endif
 
 ifdef $(LOCAL_MODULE).JACK_VERSION
 LOCAL_JACK_VERSION := $($(LOCAL_MODULE).JACK_VERSION)
diff --git a/core/copy_headers.mk b/core/copy_headers.mk
index e16560f..7d5a5d9 100644
--- a/core/copy_headers.mk
+++ b/core/copy_headers.mk
@@ -18,8 +18,10 @@
       $(if $(LOCAL_COPY_HEADERS_TO),\
         $($(my_prefix)OUT_HEADERS)/$(LOCAL_COPY_HEADERS_TO)/$(notdir $(header)),\
         $($(my_prefix)OUT_HEADERS)/$(notdir $(header)))) \
-  $(eval $(call copy-one-header,$(_chFrom),$(_chTo))) \
-  $(eval all_copied_headers: $(_chTo)) \
+  $(eval ALL_COPIED_HEADERS.$(_chTo).MAKEFILE += $(LOCAL_MODULE_MAKEFILE)) \
+  $(eval ALL_COPIED_HEADERS.$(_chTo).SRC += $(_chFrom)) \
+  $(if $(filter $(_chTo),$(ALL_COPIED_HEADERS)),, \
+      $(eval ALL_COPIED_HEADERS += $(_chTo))) \
  )
 _chFrom :=
 _chTo :=
diff --git a/core/cxx_stl_setup.mk b/core/cxx_stl_setup.mk
index 37be1f7..b4ba7a2 100644
--- a/core/cxx_stl_setup.mk
+++ b/core/cxx_stl_setup.mk
@@ -105,13 +105,13 @@
 else ifeq ($(my_cxx_stl),ndk)
     # Using an NDK STL. Handled in binary.mk.
 else ifeq ($(my_cxx_stl),libstdc++)
-    # Using bionic's basic libstdc++. Not actually an STL. Only around until the
-    # tree is in good enough shape to not need it.
     ifndef LOCAL_IS_HOST_MODULE
-        my_c_includes += bionic/libstdc++/include
-        my_system_shared_libraries += libstdc++
+        $(error $(LOCAL_PATH): $(LOCAL_MODULE): libstdc++ is not supported for device modules)
+    else
+        # Host builds will use the system C++. libc++ on Darwin, GNU libstdc++ everywhere else
+        my_cppflags += $($(my_prefix)SYSTEMCPP_CPPFLAGS)
+        my_ldflags += $($(my_prefix)SYSTEMCPP_LDFLAGS)
     endif
-    # Host builds will use GNU libstdc++.
 else ifeq ($(my_cxx_stl),none)
     ifdef LOCAL_IS_HOST_MODULE
         my_cppflags += -nostdinc++
diff --git a/core/definitions.mk b/core/definitions.mk
index c40e6bc..9495bc8 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -55,10 +55,6 @@
 # its sub-variables.)
 ALL_MODULE_NAME_TAGS:=
 
-# Full paths to all prebuilt files that will be copied
-# (used to make the dependency on acp)
-ALL_PREBUILT:=
-
 # Full path to all files that are made by some tool
 ALL_GENERATED_SOURCES:=
 
@@ -133,7 +129,6 @@
 define my-dir
 $(strip \
   $(eval LOCAL_MODULE_MAKEFILE := $$(lastword $$(MAKEFILE_LIST))) \
-  $(eval LOCAL_MODULE_MAKEFILE_DEP := $(if $(BUILDING_WITH_NINJA),,$$(LOCAL_MODULE_MAKEFILE))) \
   $(if $(filter $(BUILD_SYSTEM)/% $(OUT_DIR)/%,$(LOCAL_MODULE_MAKEFILE)), \
     $(error my-dir must be called before including any other makefile.) \
    , \
@@ -655,25 +650,36 @@
 # $(1): library name
 # $(2): Non-empty if IS_HOST_MODULE
 define _java-lib-full-classes.jar
-$(call _java-lib-dir,$(1),$(2))/classes$(COMMON_JAVA_PACKAGE_SUFFIX)
+$(call _java-lib-dir,$(1),$(2))/$(if $(2),javalib,classes)$(COMMON_JAVA_PACKAGE_SUFFIX)
 endef
 
+# Get the jar files (you can pass to "javac -classpath") of static or shared
+# Java libraries that you want to link against.
 # $(1): library name list
 # $(2): Non-empty if IS_HOST_MODULE
 define java-lib-files
 $(foreach lib,$(1),$(call _java-lib-full-classes.jar,$(lib),$(2)))
 endef
 
-# $(1): library name
-# $(2): Non-empty if IS_HOST_MODULE
-define _java-lib-full-dep
-$(call _java-lib-dir,$(1),$(2))/$(if $(2),javalib,classes)$(COMMON_JAVA_PACKAGE_SUFFIX)
-endef
-
+# Get the dependency files (you can put on the right side of "|" of a build rule)
+# of the Java libraries.
 # $(1): library name list
 # $(2): Non-empty if IS_HOST_MODULE
+# Historically for target Java libraries we used a different file (javalib.jar)
+# as the dependency.
+# Now we can use classes.jar as dependency, so java-lib-deps is the same
+# as java-lib-files.
 define java-lib-deps
-$(foreach lib,$(1),$(call _java-lib-full-dep,$(lib),$(2)))
+$(call java-lib-files,$(1),$(2))
+endef
+
+# Get the jar files (you can pass to "javac -classpath") of host dalvik Java libraries.
+# You can also use them as dependency files.
+# A host dalvik Java library is different from a host Java library in that
+# the java lib file is classes.jar, not javalib.jar.
+# $(1): library name list
+define host-dex-java-lib-files
+$(foreach lib,$(1),$(call _java-lib-dir,$(lib),true)/classes.jar)
 endef
 
 ###########################################################
@@ -694,16 +700,10 @@
 $(foreach lib,$(1),$(call _jack-lib-full-classes,$(lib),$(2)))
 endef
 
-# $(1): library name
-# $(2): Non-empty if IS_HOST_MODULE
-define _jack-lib-full-dep
-$(call _jack-lib-full-classes,$(1),$(2))
-endef
-
 # $(1): library name list
 # $(2): Non-empty if IS_HOST_MODULE
 define jack-lib-deps
-$(foreach lib,$(1),$(call _jack-lib-full-dep,$(lib),$(2)))
+$(call jack-lib-files,$(1),$(2))
 endef
 
 ###########################################################
@@ -895,15 +895,14 @@
 ###########################################################
 # $(1): the .P file
 # $(2): the main build target
-ifeq ($(BUILDING_WITH_NINJA),true)
 define include-depfile
 $(eval $(2) : .KATI_DEPFILE := $1)
 endef
-else
-define include-depfile
-$(eval -include $1)
+
+# $(1): object files
+define include-depfiles-for-objs
+$(foreach obj, $(1), $(call include-depfile, $(obj:%.o=%.P), $(obj)))
 endef
-endif
 
 ###########################################################
 ## Track source files compiled to objects
@@ -1083,7 +1082,7 @@
 define transform-logtags-to-java
 @mkdir -p $(dir $@)
 @echo "logtags: $@ <= $<"
-$(hide) $(JAVATAGS) -o $@ $^
+$(hide) $(JAVATAGS) -o $@ $< $(PRIVATE_MERGED_TAG)
 endef
 
 
@@ -1153,7 +1152,7 @@
 @mkdir -p $(dir $@)
 $(hide) $(RELATIVE_PWD) $(PRIVATE_CXX) \
 	$(addprefix -I , $(PRIVATE_C_INCLUDES)) \
-	$(shell cat $(PRIVATE_IMPORT_INCLUDES)) \
+	$$(cat $(PRIVATE_IMPORT_INCLUDES)) \
 	$(addprefix -isystem ,\
 	    $(if $(PRIVATE_NO_DEFAULT_COMPILER_FLAGS),, \
 	        $(filter-out $(PRIVATE_C_INCLUDES), \
@@ -1185,7 +1184,7 @@
 @mkdir -p $(dir $@)
 $(hide) $(RELATIVE_PWD) $(PRIVATE_CC) \
 	$(addprefix -I , $(PRIVATE_C_INCLUDES)) \
-	$(shell cat $(PRIVATE_IMPORT_INCLUDES)) \
+	$$(cat $(PRIVATE_IMPORT_INCLUDES)) \
 	$(addprefix -isystem ,\
 	    $(if $(PRIVATE_NO_DEFAULT_COMPILER_FLAGS),, \
 	        $(filter-out $(PRIVATE_C_INCLUDES), \
@@ -1260,7 +1259,7 @@
 @mkdir -p $(dir $@)
 $(hide) $(RELATIVE_PWD) $(PRIVATE_CXX) \
 	$(addprefix -I , $(PRIVATE_C_INCLUDES)) \
-	$(shell cat $(PRIVATE_IMPORT_INCLUDES)) \
+	$$(cat $(PRIVATE_IMPORT_INCLUDES)) \
 	$(addprefix -isystem ,\
 	    $(if $(PRIVATE_NO_DEFAULT_COMPILER_FLAGS),, \
 	        $(filter-out $(PRIVATE_C_INCLUDES), \
@@ -1290,7 +1289,7 @@
 @mkdir -p $(dir $@)
 $(hide) $(RELATIVE_PWD) $(PRIVATE_CC) \
 	$(addprefix -I , $(PRIVATE_C_INCLUDES)) \
-	$(shell cat $(PRIVATE_IMPORT_INCLUDES)) \
+	$$(cat $(PRIVATE_IMPORT_INCLUDES)) \
 	$(addprefix -isystem ,\
 	    $(if $(PRIVATE_NO_DEFAULT_COMPILER_FLAGS),, \
 	        $(filter-out $(PRIVATE_C_INCLUDES), \
@@ -1302,13 +1301,12 @@
 	    $(PRIVATE_HOST_GLOBAL_CONLYFLAGS) \
 	 ) \
 	$(1) \
-	$(PRIVATE_CFLAGS_NO_OVERRIDE) \
 	-MD -MF $(patsubst %.o,%.d,$@) -o $@ $<
 endef
 
 define transform-host-c-to-o-no-deps
 @echo "$($(PRIVATE_PREFIX)DISPLAY) C: $(PRIVATE_MODULE) <= $<"
-$(call transform-host-c-or-s-to-o-no-deps, $(PRIVATE_CFLAGS) $(PRIVATE_CONLYFLAGS) $(PRIVATE_DEBUG_CFLAGS))
+$(call transform-host-c-or-s-to-o-no-deps, $(PRIVATE_CFLAGS) $(PRIVATE_CONLYFLAGS) $(PRIVATE_DEBUG_CFLAGS) $(PRIVATE_CFLAGS_NO_OVERRIDE))
 endef
 
 define transform-host-s-to-o-no-deps
@@ -1332,7 +1330,7 @@
 
 define transform-host-m-to-o-no-deps
 @echo "$($(PRIVATE_PREFIX)DISPLAY) ObjC: $(PRIVATE_MODULE) <= $<"
-$(call transform-host-c-or-s-to-o-no-deps, $(PRIVATE_CFLAGS) $(PRIVATE_DEBUG_CFLAGS))
+$(call transform-host-c-or-s-to-o-no-deps, $(PRIVATE_CFLAGS) $(PRIVATE_DEBUG_CFLAGS) $(PRIVATE_CFLAGS_NO_OVERRIDE))
 endef
 
 define transform-host-m-to-o
@@ -1364,7 +1362,7 @@
 o := $(intermediates)/$(patsubst %$(LOCAL_CPP_EXTENSION),%.o,$(subst ../,$(DOTDOT_REPLACEMENT),$(1)))
 $$(o) : $(TOPDIR)$(LOCAL_PATH)/$(1) $(2)
 	$$(transform-$$(PRIVATE_HOST)cpp-to-o)
--include $$(o:%.o=%.P)
+$$(call include-depfiles-for-objs, $$(o))
 $(3) += $$(o)
 endef
 
@@ -1377,7 +1375,7 @@
 o := $(intermediates)/$(patsubst %.c,%.o,$(subst ../,$(DOTDOT_REPLACEMENT),$(1)))
 $$(o) : $(TOPDIR)$(LOCAL_PATH)/$(1) $(2)
 	$$(transform-$$(PRIVATE_HOST)c-to-o)
--include $$(o:%.o=%.P)
+$$(call include-depfiles-for-objs, $$(o))
 $(3) += $$(o)
 endef
 
@@ -1390,7 +1388,7 @@
 o := $(intermediates)/$(patsubst %.S,%.o,$(subst ../,$(DOTDOT_REPLACEMENT),$(1)))
 $$(o) : $(TOPDIR)$(LOCAL_PATH)/$(1) $(2)
 	$$(transform-$$(PRIVATE_HOST)s-to-o)
--include $$(o:%.o=%.P)
+$$(call include-depfiles-for-objs, $$(o))
 $(3) += $$(o)
 endef
 
@@ -1516,6 +1514,23 @@
     $(call _extract-and-include-single-host-whole-static-lib, $(lib)))
 endef
 
+ifeq ($(HOST_OS),darwin)
+# On Darwin the host ar fails if there is nothing to add to .a at all.
+# We work around by adding a dummy.o and then deleting it.
+define create-dummy.o-if-no-objs
+$(if $(PRIVATE_ALL_OBJECTS),,$(hide) touch $(dir $@)dummy.o)
+endef
+
+define get-dummy.o-if-no-objs
+$(if $(PRIVATE_ALL_OBJECTS),,$(dir $@)dummy.o)
+endef
+
+define delete-dummy.o-if-no-objs
+$(if $(PRIVATE_ALL_OBJECTS),,$(hide) $($(PRIVATE_2ND_ARCH_VAR_PREFIX)$(PRIVATE_PREFIX)AR) d $@ $(dir $@)dummy.o \
+  && rm -f $(dir $@)dummy.o)
+endef
+endif  # HOST_OS is darwin
+
 # Explicitly delete the archive first so that ar doesn't
 # try to add to an existing archive.
 define transform-host-o-to-static-lib
@@ -1523,9 +1538,11 @@
 @mkdir -p $(dir $@)
 @rm -f $@
 $(extract-and-include-host-whole-static-libs)
+$(create-dummy.o-if-no-objs)
 $(call split-long-arguments,$($(PRIVATE_2ND_ARCH_VAR_PREFIX)$(PRIVATE_PREFIX)AR) \
     $($(PRIVATE_2ND_ARCH_VAR_PREFIX)$(PRIVATE_PREFIX)GLOBAL_ARFLAGS) \
-    $(PRIVATE_ARFLAGS) $@,$(PRIVATE_ALL_OBJECTS))
+    $(PRIVATE_ARFLAGS) $@,$(PRIVATE_ALL_OBJECTS) $(get-dummy.o-if-no-objs))
+$(delete-dummy.o-if-no-objs)
 endef
 
 
@@ -1596,10 +1613,10 @@
 	$(if $(filter true,$(NATIVE_COVERAGE)),$(PRIVATE_TARGET_COVERAGE_LIB)) \
 	$(PRIVATE_TARGET_LIBATOMIC) \
 	$(PRIVATE_TARGET_LIBGCC) \
-	$(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \
-	-o $@ \
 	$(PRIVATE_TARGET_GLOBAL_LDFLAGS) \
 	$(PRIVATE_LDFLAGS) \
+	$(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \
+	-o $@ \
 	$(PRIVATE_TARGET_CRTEND_SO_O) \
 	$(PRIVATE_LDLIBS)
 endef
@@ -1626,6 +1643,23 @@
   $(if $(PRIVATE_NO_DEBUGLINK),,$(TARGET_STRIP_EXTRA))
 endef
 
+define transform-to-stripped-keep-mini-debug-info
+@echo "target Strip (mini debug info): $(PRIVATE_MODULE) ($@)"
+@mkdir -p $(dir $@)
+$(hide) $(PRIVATE_NM) -D $< --format=posix --defined-only | awk '{ print $$1 }' | sort >$@.dynsyms
+$(hide) $(PRIVATE_NM) $< --format=posix --defined-only | awk '{ if ($$2 == "T" || $$2 == "t" || $$2 == "D") print $$1 }' | sort >$@.funcsyms
+$(hide) comm -13 $@.dynsyms $@.funcsyms >$@.keep_symbols
+$(hide) $(PRIVATE_OBJCOPY) --only-keep-debug $< $@.debug
+$(hide) $(PRIVATE_OBJCOPY) --rename-section .debug_frame=saved_debug_frame $@.debug $@.mini_debuginfo
+$(hide) $(PRIVATE_OBJCOPY) -S --remove-section .gdb_index --remove-section .comment --keep-symbols=$@.keep_symbols $@.mini_debuginfo
+$(hide) $(PRIVATE_OBJCOPY) --rename-section saved_debug_frame=.debug_frame $@.mini_debuginfo
+$(hide) $(PRIVATE_STRIP) --strip-all -R .comment $< -o $@
+$(hide) rm -f $@.mini_debuginfo.xz
+$(hide) xz $@.mini_debuginfo
+$(hide) $(PRIVATE_OBJCOPY) --add-section .gnu_debugdata=$@.mini_debuginfo.xz $@
+$(hide) rm -f $@.dynsyms $@.funcsyms $@.keep_symbols $@.debug $@.mini_debuginfo.xz
+endef
+
 define transform-to-stripped-keep-symbols
 @echo "target Strip (keep symbols): $(PRIVATE_MODULE) ($@)"
 @mkdir -p $(dir $@)
@@ -1667,10 +1701,10 @@
 	$(if $(filter true,$(NATIVE_COVERAGE)),$(PRIVATE_TARGET_COVERAGE_LIB)) \
 	$(PRIVATE_TARGET_LIBATOMIC) \
 	$(PRIVATE_TARGET_LIBGCC) \
-	$(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \
-	-o $@ \
 	$(PRIVATE_TARGET_GLOBAL_LDFLAGS) \
 	$(PRIVATE_LDFLAGS) \
+	$(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \
+	-o $@ \
 	$(PRIVATE_TARGET_CRTEND_O) \
 	$(PRIVATE_LDLIBS)
 endef
@@ -1928,7 +1962,6 @@
 $(if $(PRIVATE_JAR_EXCLUDE_PACKAGES), $(hide) rm -rf \
     $(foreach pkg, $(PRIVATE_JAR_EXCLUDE_PACKAGES), \
         $(PRIVATE_CLASS_INTERMEDIATES_DIR)/$(subst .,/,$(pkg))))
-$(if $(PRIVATE_RMTYPEDEFS), $(hide) $(RMTYPEDEFS) -v $(PRIVATE_CLASS_INTERMEDIATES_DIR))
 $(if $(PRIVATE_JAR_MANIFEST), \
     $(hide) sed -e "s/%BUILD_NUMBER%/$(BUILD_NUMBER_FROM_FILE)/" \
             $(PRIVATE_JAR_MANIFEST) > $(dir $@)/manifest.mf && \
@@ -1989,6 +2022,7 @@
         $(call normalize-path-list,$(PRIVATE_BOOTCLASSPATH_JAVA_LIBRARIES) $(PRIVATE_ALL_JACK_LIBRARIES)))) \
     $(addprefix --import ,$(call reverse-list,$(PRIVATE_STATIC_JACK_LIBRARIES))) \
     $(if $(PRIVATE_EXTRA_JAR_ARGS),--import-resource $@.res.tmp) \
+    -D jack.android.min-api-level=$(PRIVATE_JACK_MIN_SDK_VERSION) \
     -D jack.import.resource.policy=keep-first \
     -D jack.import.type.policy=keep-first \
     --output-jack $(PRIVATE_CLASSES_JACK) \
@@ -2007,6 +2041,38 @@
 $(if $(PRIVATE_JAR_MANIFEST), $(hide) echo unsupported options JAR_MANIFEST in $@; exit 53)
 endef
 
+# Invoke Jack to compile java source just to check it compiles correctly.
+#
+# Some historical notes:
+# - below we write the list of java files to java-source-list to avoid argument
+#   list length problems with Cygwin
+# - we filter out duplicate java file names because Jack doesn't like them.
+define jack-check-java
+$(hide) rm -f $@
+$(hide) rm -f $@.java-source-list
+$(hide) rm -f $@.java-source-list-uniq
+$(hide) mkdir -p $(dir $@)
+$(if $(PRIVATE_JACK_INCREMENTAL_DIR),$(hide) mkdir -p $(PRIVATE_JACK_INCREMENTAL_DIR))
+$(call dump-words-to-file,$(PRIVATE_JAVA_SOURCES),$@.java-source-list)
+$(hide) if [ -d "$(PRIVATE_SOURCE_INTERMEDIATES_DIR)" ]; then \
+          find $(PRIVATE_SOURCE_INTERMEDIATES_DIR) -name '*.java' >> $@.java-source-list; \
+fi
+$(hide) tr ' ' '\n' < $@.java-source-list \
+    | sort -u > $@.java-source-list-uniq
+$(hide) if [ -s $@.java-source-list-uniq ] ; then \
+	$(call call-jack) \
+	    $(strip $(PRIVATE_JACK_FLAGS)) \
+	    $(addprefix --classpath ,$(strip \
+	        $(call normalize-path-list,$(call reverse-list,$(PRIVATE_STATIC_JACK_LIBRARIES)) $(PRIVATE_BOOTCLASSPATH_JAVA_LIBRARIES) $(PRIVATE_ALL_JACK_LIBRARIES)))) \
+	    -D jack.import.resource.policy=keep-first \
+	    -D jack.android.min-api-level=$(PRIVATE_JACK_MIN_SDK_VERSION) \
+	    -D jack.import.type.policy=keep-first \
+	    $(if $(PRIVATE_JACK_INCREMENTAL_DIR),--incremental-folder $(PRIVATE_JACK_INCREMENTAL_DIR)) \
+	    @$@.java-source-list-uniq; \
+fi
+touch $@
+endef
+
 define transform-jar-to-jack
 	$(hide) mkdir -p $(dir $@)
 	$(hide) mkdir -p $@.tmpjill.res
@@ -2016,6 +2082,7 @@
 	    $(PRIVATE_JACK_FLAGS) \
         -D jack.import.resource.policy=keep-first \
         -D jack.import.type.policy=keep-first \
+        -D jack.android.min-api-level=$(PRIVATE_JACK_MIN_SDK_VERSION) \
 	    --import $< \
 	    --import-resource $@.tmpjill.res \
 	    --output-jack $@
@@ -2025,9 +2092,7 @@
 # Moves $1.tmp to $1 if necessary. This is designed to be used with
 # .KATI_RESTAT. For kati, this function doesn't update the timestamp
 # of $1 when $1.tmp is identical to $1 so that ninja won't rebuild
-# targets which depend on $1. For GNU make, this function simply
-# copies $1.tmp to $1.
-ifeq ($(BUILDING_WITH_NINJA),true)
+# targets which depend on $1.
 define commit-change-for-toc
 $(hide) if cmp -s $1.tmp $1 ; then \
  rm $1.tmp ; \
@@ -2035,12 +2100,6 @@
  mv $1.tmp $1 ; \
 fi
 endef
-else
-define commit-change-for-toc
-@# make doesn't support restat. We always update .toc files so the dependents will always be updated too.
-$(hide) mv $1.tmp $1
-endef
-endif
 
 ## Rule to create a table of contents from a .jar file.
 ## Must be called with $(eval).
@@ -2131,6 +2190,7 @@
     $(if $(PRIVATE_EXTRA_JAR_ARGS),--import-resource $@.res.tmp) \
     -D jack.import.resource.policy=keep-first \
     -D jack.import.type.policy=keep-first \
+    -D jack.android.min-api-level=$(PRIVATE_JACK_MIN_SDK_VERSION) \
     $(if $(PRIVATE_JACK_INCREMENTAL_DIR),--incremental-folder $(PRIVATE_JACK_INCREMENTAL_DIR)) \
     --output-jack $@ \
     $(addprefix --config-jarjar ,$(strip $(PRIVATE_JARJAR_RULES))) \
@@ -2151,25 +2211,6 @@
     $(addprefix -ix , $(PRIVATE_EMMA_COVERAGE_FILTER))
 endef
 
-#TODO: use a smaller -Xmx value for most libraries;
-#      only core.jar and framework.jar need a heap this big.
-define transform-classes.jar-to-dex
-@echo "target Dex: $(PRIVATE_MODULE)"
-@mkdir -p $(dir $@)
-$(hide) rm -f $(dir $@)classes*.dex
-$(hide) $(DX) \
-    -JXms16M -JXmx2048M \
-    --dex --output=$(dir $@) \
-    $(if $(NO_OPTIMIZE_DX), \
-        --no-optimize) \
-    $(if $(GENERATE_DEX_DEBUG), \
-	    --debug --verbose \
-	    --dump-to=$(@:.dex=.lst) \
-	    --dump-width=1000) \
-    $(PRIVATE_DX_FLAGS) \
-    $<
-endef
-
 # Create a mostly-empty .jar file that we'll add to later.
 # The MacOS jar tool doesn't like creating empty jar files,
 # so we need to give it something.
@@ -2189,17 +2230,6 @@
 $(call create-empty-package-at,$@)
 endef
 
-# Copy an arhchive file and delete any class files and empty folders inside.
-# $(1): the source archive file.
-# $(2): the destination archive file.
-define initialize-package-file
-@mkdir -p $(dir $(2))
-$(hide) cp -f $(1) $(2)
-$(hide) zip -qd $(2) "*.class" \
-    $(if $(strip $(PRIVATE_DONT_DELETE_JAR_DIRS)),,"*/") \
-    || true # Ignore the error when nothing to delete.
-endef
-
 #TODO: we kinda want to build different asset packages for
 #      different configurations, then combine them later (or something).
 #      Per-locale, etc.
@@ -2258,7 +2288,12 @@
 
 #TODO: update the manifest to point to the dex file
 define add-dex-to-package
-$(hide) find $(dir $(PRIVATE_DEX_FILE)) -maxdepth 1 -name "classes*.dex" | sort | xargs zip -qjX $@
+$(call add-dex-to-package-arg,$@)
+endef
+
+# $(1): the package file.
+define add-dex-to-package-arg
+$(hide) find $(dir $(PRIVATE_DEX_FILE)) -maxdepth 1 -name "classes*.dex" | sort | xargs zip -qjX $(1)
 endef
 
 # Add java resources added by the current module.
@@ -2297,12 +2332,17 @@
 # Sign a package using the specified key/cert.
 #
 define sign-package
-$(hide) mv $@ $@.unsigned
+$(call sign-package-arg,$@)
+endef
+
+# $(1): the package file we are signing.
+define sign-package-arg
+$(hide) mv $(1) $(1).unsigned
 $(hide) java -Djava.library.path=$(SIGNAPK_JNI_LIBRARY_PATH) -jar $(SIGNAPK_JAR) \
     --min-sdk-version $(call get-package-min-sdk-version-int,$@.unsigned) \
     $(PRIVATE_CERTIFICATE) $(PRIVATE_PRIVATE_KEY) \
-    $(PRIVATE_ADDITIONAL_CERTIFICATES) $@.unsigned $@.signed
-$(hide) mv $@.signed $@
+    $(PRIVATE_ADDITIONAL_CERTIFICATES) $(1).unsigned $(1).signed
+$(hide) mv $(1).signed $(1)
 endef
 
 # Align STORED entries of a package on 4-byte boundaries to make them easier to mmap.
@@ -2337,19 +2377,6 @@
   fi
 endef
 
-define install-dex-debug
-$(hide) if [ -f "$(PRIVATE_INTERMEDIATES_DIR)/classes.dex" ]; then \
-	    mkdir -p $(TOP)/dalvik/DEBUG-FILES; \
-	    $(ACP) $(PRIVATE_INTERMEDIATES_DIR)/classes.dex \
-		$(TOP)/dalvik/DEBUG-FILES/$(PRIVATE_MODULE).dex; \
-	fi
-$(hide) if [ -f "$(PRIVATE_INTERMEDIATES_DIR)/classes.lst" ]; then \
-	    mkdir -p $(TOP)/dalvik/DEBUG-FILES; \
-	    $(ACP) $(PRIVATE_INTERMEDIATES_DIR)/classes.lst \
-		$(TOP)/dalvik/DEBUG-FILES/$(PRIVATE_MODULE).lst; \
-	fi
-endef
-
 # TODO(joeo): If we can ever upgrade to post 3.81 make and get the
 # new prebuilt rules to work, we should change this to copy the
 # resources to the out directory and then copy the resources.
@@ -2378,7 +2405,7 @@
 # $(1): source file
 # $(2): destination file
 define copy-one-file
-$(2): $(1) | $(ACP)
+$(2): $(1)
 	@echo "Copy: $$@"
 	$$(copy-file-to-target)
 endef
@@ -2399,7 +2426,7 @@
 # $(1): source file
 # $(2): destination file, must end with .xml.
 define copy-xml-file-checked
-$(2): $(1) | $(ACP)
+$(2): $(1)
 	@echo "Copy xml: $$@"
 	$(hide) xmllint $$< >/dev/null  # Don't print the xml file to stdout.
 	$$(copy-file-to-target)
@@ -2414,24 +2441,29 @@
 # Copy a single file from one place to another,
 # preserving permissions and overwriting any existing
 # file.
-# We disable the "-t" option for acp cannot handle
-# high resolution timestamp correctly on file systems like ext4.
-# Therefore copy-file-to-target is the same as copy-file-to-new-target.
+# When we used acp, it could not handle high resolution timestamps
+# on file systems like ext4. Because of that, '-t' option was disabled
+# and copy-file-to-target was identical to copy-file-to-new-target.
+# Keep the behavior until we audit and ensure that switching this back
+# won't break anything.
 define copy-file-to-target
 @mkdir -p $(dir $@)
-$(hide) $(ACP) -fp $< $@
+$(hide) rm -f $@
+$(hide) cp $< $@
 endef
 
 # The same as copy-file-to-target, but use the local
 # cp command instead of acp.
 define copy-file-to-target-with-cp
 @mkdir -p $(dir $@)
-$(hide) cp -fp $< $@
+$(hide) rm -f $@
+$(hide) cp -p $< $@
 endef
 
 # The same as copy-file-to-target, but use the zipalign tool to do so.
 define copy-file-to-target-with-zipalign
 @mkdir -p $(dir $@)
+$(hide) rm -f $@
 $(hide) $(ZIPALIGN) -f 4 $< $@
 endef
 
@@ -2439,6 +2471,7 @@
 # comments (for config files and such).
 define copy-file-to-target-strip-comments
 @mkdir -p $(dir $@)
+$(hide) rm -f $@
 $(hide) sed -e 's/#.*$$//' -e 's/[ \t]*$$//' -e '/^$$/d' < $< > $@
 endef
 
@@ -2446,14 +2479,16 @@
 # the old modification time.
 define copy-file-to-new-target
 @mkdir -p $(dir $@)
-$(hide) $(ACP) -fp $< $@
+$(hide) rm -f $@
+$(hide) cp $< $@
 endef
 
 # The same as copy-file-to-new-target, but use the local
 # cp command instead of acp.
 define copy-file-to-new-target-with-cp
 @mkdir -p $(dir $@)
-$(hide) cp -f $< $@
+$(hide) rm -f $@
+$(hide) cp $< $@
 endef
 
 # Copy a prebuilt file to a target location.
@@ -2582,7 +2617,7 @@
 endef
 define add-radio-file-internal
 INSTALLED_RADIOIMAGE_TARGET += $$(PRODUCT_OUT)/$(2)
-$$(PRODUCT_OUT)/$(2) : $$(LOCAL_PATH)/$(1) | $$(ACP)
+$$(PRODUCT_OUT)/$(2) : $$(LOCAL_PATH)/$(1)
 	$$(transform-prebuilt-to-target)
 endef
 
@@ -2597,7 +2632,7 @@
 define add-radio-file-checked-internal
 INSTALLED_RADIOIMAGE_TARGET += $$(PRODUCT_OUT)/$(2)
 BOARD_INFO_CHECK += $(3):$(LOCAL_PATH)/$(1)
-$$(PRODUCT_OUT)/$(2) : $$(LOCAL_PATH)/$(1) | $$(ACP)
+$$(PRODUCT_OUT)/$(2) : $$(LOCAL_PATH)/$(1)
 	$$(transform-prebuilt-to-target)
 endef
 
diff --git a/core/dex_preopt.mk b/core/dex_preopt.mk
index e0dde01..3a43336 100644
--- a/core/dex_preopt.mk
+++ b/core/dex_preopt.mk
@@ -19,6 +19,12 @@
 # The default value for LOCAL_DEX_PREOPT
 DEX_PREOPT_DEFAULT ?= true
 
+GLOBAL_DEXPREOPT_FLAGS :=
+ifeq ($(WITH_DEXPREOPT_PIC),true)
+# Compile boot.oat as position-independent code if WITH_DEXPREOPT_PIC=true
+GLOBAL_DEXPREOPT_FLAGS += --compile-pic
+endif
+
 # $(1): the .jar or .apk to remove classes.dex
 define dexpreopt-remove-classes.dex
 $(hide) zip --quiet --delete $(1) classes.dex; \
@@ -35,7 +41,7 @@
 _dbj_jar_no_dex := $(DEXPREOPT_BOOT_JAR_DIR_FULL_PATH)/$(1)_nodex.jar
 _dbj_src_jar := $(call intermediates-dir-for,JAVA_LIBRARIES,$(1),,COMMON)/javalib.jar
 
-$$(_dbj_jar_no_dex) : $$(_dbj_src_jar) | $(ACP)
+$$(_dbj_jar_no_dex) : $$(_dbj_src_jar)
 	$$(call copy-file-to-target)
 ifneq ($(DEX_PREOPT_DEFAULT),nostripping)
 	$$(call dexpreopt-remove-classes.dex,$$@)
diff --git a/core/dex_preopt_libart.mk b/core/dex_preopt_libart.mk
index 97e77ba..b286cb7 100644
--- a/core/dex_preopt_libart.mk
+++ b/core/dex_preopt_libart.mk
@@ -70,11 +70,13 @@
 my_2nd_arch_prefix :=
 include $(BUILD_SYSTEM)/dex_preopt_libart_boot.mk
 
+ifneq ($(TARGET_TRANSLATE_2ND_ARCH),true)
 ifdef TARGET_2ND_ARCH
 my_2nd_arch_prefix := $(TARGET_2ND_ARCH_VAR_PREFIX)
 include $(BUILD_SYSTEM)/dex_preopt_libart_boot.mk
 my_2nd_arch_prefix :=
 endif
+endif
 
 
 ########################################################################
@@ -85,7 +87,7 @@
 define dex2oat-one-file
 $(hide) rm -f $(2)
 $(hide) mkdir -p $(dir $(2))
-$(hide) $(DEX2OAT) \
+$(hide) ANDROID_LOG_TAGS="*:e" $(DEX2OAT) \
 	--runtime-arg -Xms$(DEX2OAT_XMS) --runtime-arg -Xmx$(DEX2OAT_XMX) \
 	--boot-image=$(PRIVATE_DEX_PREOPT_IMAGE_LOCATION) \
 	--dex-file=$(1) \
@@ -98,5 +100,6 @@
 	--include-patch-information --runtime-arg -Xnorelocate --no-generate-debug-info \
 	--abort-on-hard-verifier-error \
 	--no-inline-from=core-oj.jar \
-	$(PRIVATE_DEX_PREOPT_FLAGS)
+	$(PRIVATE_DEX_PREOPT_FLAGS) \
+	$(GLOBAL_DEXPREOPT_FLAGS)
 endef
diff --git a/core/dex_preopt_libart_boot.mk b/core/dex_preopt_libart_boot.mk
index f8fc655..69102d1 100644
--- a/core/dex_preopt_libart_boot.mk
+++ b/core/dex_preopt_libart_boot.mk
@@ -29,11 +29,6 @@
 
 $(my_2nd_arch_prefix)DEFAULT_DEX_PREOPT_INSTALLED_IMAGE := $(PRODUCT_OUT)$($(my_2nd_arch_prefix)LIBART_BOOT_IMAGE_FILENAME)
 
-# Compile boot.oat as position-independent code if WITH_DEXPREOPT_PIC=true
-ifeq (true,$(WITH_DEXPREOPT_PIC))
-  PRODUCT_DEX_PREOPT_BOOT_FLAGS += --compile-pic
-endif
-
 # If we have a compiled-classes file, create a parameter.
 COMPILED_CLASSES_FLAGS :=
 ifneq ($(COMPILED_CLASSES),)
@@ -67,4 +62,4 @@
 		--instruction-set-features=$($(PRIVATE_2ND_ARCH_VAR_PREFIX)DEX2OAT_TARGET_INSTRUCTION_SET_FEATURES) \
 		--android-root=$(PRODUCT_OUT)/system --include-patch-information --runtime-arg -Xnorelocate --no-generate-debug-info \
 		--multi-image --no-inline-from=core-oj.jar \
-		$(PRODUCT_DEX_PREOPT_BOOT_FLAGS) $(COMPILED_CLASSES_FLAGS)
+		$(PRODUCT_DEX_PREOPT_BOOT_FLAGS) $(GLOBAL_DEXPREOPT_FLAGS) $(COMPILED_CLASSES_FLAGS) $(ART_BOOT_IMAGE_EXTRA_ARGS)
diff --git a/core/dex_preopt_odex_install.mk b/core/dex_preopt_odex_install.mk
index 73c8146..c3279f6 100644
--- a/core/dex_preopt_odex_install.mk
+++ b/core/dex_preopt_odex_install.mk
@@ -88,6 +88,9 @@
 endif  # LOCAL_MODULE_CLASS
 endif  # boot jar
 
+built_odex := $(strip $(built_odex))
+installed_odex := $(strip $(installed_odex))
+
 ifdef built_odex
 ifndef LOCAL_DEX_PREOPT_FLAGS
 LOCAL_DEX_PREOPT_FLAGS := $(DEXPREOPT.$(TARGET_PRODUCT).$(LOCAL_MODULE).CONFIG)
@@ -96,18 +99,12 @@
 endif
 endif
 
-# Compile apps with position-independent code if WITH_DEXPREOPT_PIC=true
-ifeq (true,$(WITH_DEXPREOPT_PIC))
-  LOCAL_DEX_PREOPT_FLAGS += --compile-pic
-endif
-
 $(built_odex): PRIVATE_DEX_PREOPT_FLAGS := $(LOCAL_DEX_PREOPT_FLAGS)
 
 # Use pattern rule - we may have multiple installed odex files.
 # Ugly syntax - See the definition get-odex-file-path.
 $(installed_odex) : $(dir $(LOCAL_INSTALLED_MODULE))%$(notdir $(word 1,$(installed_odex))) \
-                  : $(dir $(LOCAL_BUILT_MODULE))%$(notdir $(word 1,$(built_odex))) \
-    | $(ACP)
+                  : $(dir $(LOCAL_BUILT_MODULE))%$(notdir $(word 1,$(built_odex)))
 	@echo "Install: $@"
 	$(copy-file-to-target)
 endif
@@ -116,6 +113,19 @@
 ALL_MODULES.$(my_register_name).INSTALLED += $(installed_odex)
 ALL_MODULES.$(my_register_name).BUILT_INSTALLED += $(built_installed_odex)
 
+# Record dex-preopt config.
+DEXPREOPT.$(LOCAL_MODULE).DEX_PREOPT := $(LOCAL_DEX_PREOPT)
+DEXPREOPT.$(LOCAL_MODULE).MULTILIB := $(LOCAL_MULTILIB)
+DEXPREOPT.$(LOCAL_MODULE).DEX_PREOPT_FLAGS := $(LOCAL_DEX_PREOPT_FLAGS)
+DEXPREOPT.$(LOCAL_MODULE).PRIVILEGED_MODULE := $(LOCAL_PRIVILEGED_MODULE)
+DEXPREOPT.$(LOCAL_MODULE).PROPRIETARY_MODULE := $(LOCAL_PROPRIETARY_MODULE)
+DEXPREOPT.$(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))
+
+
 # Make sure to install the .odex when you run "make <module_name>"
 $(my_register_name): $(installed_odex)
 
diff --git a/core/dpi_specific_apk.mk b/core/dpi_specific_apk.mk
index b2a3d64..dfd55cd 100644
--- a/core/dpi_specific_apk.mk
+++ b/core/dpi_specific_apk.mk
@@ -30,15 +30,9 @@
 $(built_dpi_apk): PRIVATE_ADDITIONAL_CERTIFICATES := $(foreach c,\
     $(LOCAL_ADDITIONAL_CERTIFICATES), $(c).x509.pem $(c).pk8)
 
-$(built_dpi_apk): PRIVATE_SOURCE_ARCHIVE :=
 ifneq ($(full_classes_jar),)
-$(built_dpi_apk): PRIVATE_DEX_FILE := $(built_dex)
-ifndef LOCAL_JACK_ENABLED
-# Use the jarjar processed arhive as the initial package file.
-$(built_dpi_apk): PRIVATE_SOURCE_ARCHIVE := $(full_classes_jarjar_jar)
-else
 $(built_dpi_apk): PRIVATE_JACK_INTERMEDIATES_DIR := $(intermediates.COMMON)/jack-rsc
-endif # LOCAL_JACK_ENABLED
+$(built_dpi_apk): PRIVATE_DEX_FILE := $(built_dex)
 $(built_dpi_apk): $(built_dex)
 else
 $(built_dpi_apk): PRIVATE_DEX_FILE :=
@@ -51,9 +45,7 @@
 $(built_dpi_apk) : $(AAPT)
 $(built_dpi_apk) : $(all_res_assets) $(jni_shared_libraries) $(full_android_manifest)
 	@echo "target Package: $(PRIVATE_MODULE) ($@)"
-	$(if $(PRIVATE_SOURCE_ARCHIVE),\
-	  $(call initialize-package-file,$(PRIVATE_SOURCE_ARCHIVE),$@),\
-	  $(create-empty-package))
+	$(create-empty-package)
 	$(add-assets-to-package)
 ifneq ($(jni_shared_libraries),)
 	$(add-jni-shared-libs-to-package)
@@ -63,10 +55,8 @@
 	$(if $(PRIVATE_EXTRA_JAR_ARGS),$(call add-java-resources-to,$@))
 else
 	$(add-dex-to-package)
-ifdef LOCAL_JACK_ENABLED
 	$(add-carried-jack-resources)
 endif
-endif
 	$(sign-package)
 
 # Set up global variables to register this apk to the higher-level dependency graph.
diff --git a/core/droiddoc.mk b/core/droiddoc.mk
index 1b65611..0f18a58 100644
--- a/core/droiddoc.mk
+++ b/core/droiddoc.mk
@@ -161,7 +161,6 @@
         $(droiddoc) \
         $(html_dir_files) \
         $(full_java_lib_deps) \
-        $(LOCAL_MODULE_MAKEFILE_DEP) \
         $(LOCAL_ADDITIONAL_DEPENDENCIES)
 	@echo Docs droiddoc: $(PRIVATE_OUT_DIR)
 	$(hide) mkdir -p $(dir $@)
diff --git a/core/dumpvar.mk b/core/dumpvar.mk
index cfb031f..1bd4777 100644
--- a/core/dumpvar.mk
+++ b/core/dumpvar.mk
@@ -1,3 +1,35 @@
+
+# List of variables we want to print in the build banner.
+print_build_config_vars := \
+  PLATFORM_VERSION_CODENAME \
+  PLATFORM_VERSION \
+  TARGET_PRODUCT \
+  TARGET_BUILD_VARIANT \
+  TARGET_BUILD_TYPE \
+  TARGET_BUILD_APPS \
+  TARGET_ARCH \
+  TARGET_ARCH_VARIANT \
+  TARGET_CPU_VARIANT \
+  TARGET_2ND_ARCH \
+  TARGET_2ND_ARCH_VARIANT \
+  TARGET_2ND_CPU_VARIANT \
+  HOST_ARCH \
+  HOST_2ND_ARCH \
+  HOST_OS \
+  HOST_OS_EXTRA \
+  HOST_CROSS_OS \
+  HOST_CROSS_ARCH \
+  HOST_CROSS_2ND_ARCH \
+  HOST_BUILD_TYPE \
+  BUILD_ID \
+  OUT_DIR
+
+ifeq ($(TARGET_BUILD_PDK),true)
+print_build_config_vars += \
+  TARGET_BUILD_PDK \
+  PDK_FUSION_PLATFORM_ZIP
+endif
+
 # ---------------------------------------------------------------
 # the setpath shell function in envsetup.sh uses this to figure out
 # what to add to the path given the config we have chosen.
@@ -38,11 +70,7 @@
   absolute_dumpvar := $(strip $(filter abs-%,$(dumpvar_goals)))
   ifdef absolute_dumpvar
     dumpvar_goals := $(patsubst abs-%,%,$(dumpvar_goals))
-    ifneq ($(filter /%,$($(dumpvar_goals))),)
-      DUMPVAR_VALUE := $($(dumpvar_goals))
-    else
-      DUMPVAR_VALUE := $(PWD)/$($(dumpvar_goals))
-    endif
+    DUMPVAR_VALUE := $(abspath $($(dumpvar_goals)))
     dumpvar_target := dumpvar-abs-$(dumpvar_goals)
   else
     DUMPVAR_VALUE := $($(dumpvar_goals))
@@ -59,38 +87,37 @@
 PRINT_BUILD_CONFIG:=
 endif
 
-endif # CALLED_FROM_SETUP
-
-
-ifneq ($(PRINT_BUILD_CONFIG),)
-HOST_OS_EXTRA:=$(shell python -c "import platform; print(platform.platform())")
-$(info ============================================)
-$(info   PLATFORM_VERSION_CODENAME=$(PLATFORM_VERSION_CODENAME))
-$(info   PLATFORM_VERSION=$(PLATFORM_VERSION))
-$(info   TARGET_PRODUCT=$(TARGET_PRODUCT))
-$(info   TARGET_BUILD_VARIANT=$(TARGET_BUILD_VARIANT))
-$(info   TARGET_BUILD_TYPE=$(TARGET_BUILD_TYPE))
-$(info   TARGET_BUILD_APPS=$(TARGET_BUILD_APPS))
-$(info   TARGET_ARCH=$(TARGET_ARCH))
-$(info   TARGET_ARCH_VARIANT=$(TARGET_ARCH_VARIANT))
-$(info   TARGET_CPU_VARIANT=$(TARGET_CPU_VARIANT))
-$(info   TARGET_2ND_ARCH=$(TARGET_2ND_ARCH))
-$(info   TARGET_2ND_ARCH_VARIANT=$(TARGET_2ND_ARCH_VARIANT))
-$(info   TARGET_2ND_CPU_VARIANT=$(TARGET_2ND_CPU_VARIANT))
-$(info   HOST_ARCH=$(HOST_ARCH))
-$(info   HOST_2ND_ARCH=$(HOST_2ND_ARCH))
-$(info   HOST_OS=$(HOST_OS))
-$(info   HOST_OS_EXTRA=$(HOST_OS_EXTRA))
-$(info   HOST_CROSS_OS=$(HOST_CROSS_OS))
-$(info   HOST_CROSS_ARCH=$(HOST_CROSS_ARCH))
-$(info   HOST_CROSS_2ND_ARCH=$(HOST_CROSS_2ND_ARCH))
-$(info   HOST_BUILD_TYPE=$(HOST_BUILD_TYPE))
-$(info   BUILD_ID=$(BUILD_ID))
-$(info   OUT_DIR=$(OUT_DIR))
-ifeq ($(TARGET_BUILD_PDK),true)
-$(info   TARGET_BUILD_PDK=$(TARGET_BUILD_PDK))
-$(info   PDK_FUSION_PLATFORM_ZIP=$(PDK_FUSION_PLATFORM_ZIP))
+ifneq ($(filter report_config,$(DUMP_MANY_VARS)),)
+# Construct the shell commands that print the config banner.
+report_config_sh := echo '============================================';
+report_config_sh += $(foreach v,$(print_build_config_vars),echo '$v=$($(v))';)
+report_config_sh += echo '============================================';
 endif
 
+# Dump mulitple variables to "<var>=<value>" pairs, one per line.
+# The output may be executed as bash script.
+# Input variables:
+#   DUMP_MANY_VARS: the list of variable names.
+#   DUMP_VAR_PREFIX: an optional prefix of the variable name added to the output.
+#   DUMP_MANY_ABS_VARS: the list of abs variable names.
+#   DUMP_ABS_VAR_PREFIX: an optional prefix of the abs variable name added to the output.
+.PHONY: dump-many-vars
+dump-many-vars :
+	@$(foreach v, $(filter-out report_config, $(DUMP_MANY_VARS)),\
+	  echo "$(DUMP_VAR_PREFIX)$(v)='$($(v))'";)
+ifneq ($(filter report_config, $(DUMP_MANY_VARS)),)
+	@# Construct a special variable for report_config.
+	@# Escape \` to defer the execution of report_config_sh to preserve the line breaks.
+	@echo "$(DUMP_VAR_PREFIX)report_config=\`$(report_config_sh)\`"
+endif
+	@$(foreach v, $(sort $(DUMP_MANY_ABS_VARS)),\
+	  echo "$(DUMP_ABS_VAR_PREFIX)$(v)='$(abspath $($(v)))'";)
+
+endif # CALLED_FROM_SETUP
+
+ifneq ($(PRINT_BUILD_CONFIG),)
+$(info ============================================)
+$(foreach v, $(print_build_config_vars),\
+  $(info $v=$($(v))))
 $(info ============================================)
 endif
diff --git a/core/dynamic_binary.mk b/core/dynamic_binary.mk
index d6f6cc9..f11803d 100644
--- a/core/dynamic_binary.mk
+++ b/core/dynamic_binary.mk
@@ -46,7 +46,9 @@
 
 my_pack_module_relocations := false
 ifneq ($(DISABLE_RELOCATION_PACKER),true)
-    my_pack_module_relocations := $(LOCAL_PACK_MODULE_RELOCATIONS)
+    my_pack_module_relocations := $(firstword \
+      $(LOCAL_PACK_MODULE_RELOCATIONS_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) \
+      $(LOCAL_PACK_MODULE_RELOCATIONS))
 endif
 
 ifeq ($(my_pack_module_relocations),)
@@ -67,10 +69,10 @@
 
 ifeq (true,$(my_pack_module_relocations))
 # Pack relocations
-$(relocation_packer_output): $(relocation_packer_input) | $(ACP)
+$(relocation_packer_output): $(relocation_packer_input)
 	$(pack-elf-relocations)
 else
-$(relocation_packer_output): $(relocation_packer_input) | $(ACP)
+$(relocation_packer_output): $(relocation_packer_input)
 	@echo "target Unpacked: $(PRIVATE_MODULE) ($@)"
 	$(copy-file-to-target)
 endif
@@ -85,7 +87,7 @@
 endif
 symbolic_input := $(relocation_packer_output)
 symbolic_output := $(my_unstripped_path)/$(my_installed_module_stem)
-$(symbolic_output) : $(symbolic_input) | $(ACP)
+$(symbolic_output) : $(symbolic_input)
 	@echo "target Symbolic: $(PRIVATE_MODULE) ($@)"
 	$(copy-file-to-target)
 
@@ -110,13 +112,16 @@
 strip_input := $(symbolic_output)
 strip_output := $(LOCAL_BUILT_MODULE)
 
-my_strip_module := $(LOCAL_STRIP_MODULE)
+my_strip_module := $(firstword \
+  $(LOCAL_STRIP_MODULE_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) \
+  $(LOCAL_STRIP_MODULE))
 ifeq ($(my_strip_module),)
   my_strip_module := true
 endif
 
 $(strip_output): PRIVATE_STRIP := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP)
 $(strip_output): PRIVATE_OBJCOPY := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_OBJCOPY)
+$(strip_output): PRIVATE_NM := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_NM)
 $(strip_output): PRIVATE_READELF := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_READELF)
 ifeq ($(my_strip_module),no_debuglink)
 $(strip_output): PRIVATE_NO_DEBUGLINK := true
@@ -124,7 +129,11 @@
 $(strip_output): PRIVATE_NO_DEBUGLINK :=
 endif
 
-ifneq ($(filter true no_debuglink,$(my_strip_module)),)
+ifeq ($(my_strip_module),mini-debug-info)
+# Strip the binary, but keep debug frames and symbol table in a compressed .gnu_debugdata section.
+$(strip_output): $(strip_input) | $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP) $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_OBJCOPY) $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_NM)
+	$(transform-to-stripped-keep-mini-debug-info)
+else ifneq ($(filter true no_debuglink,$(my_strip_module)),)
 # Strip the binary
 $(strip_output): $(strip_input) | $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_STRIP)
 	$(transform-to-stripped)
@@ -144,18 +153,9 @@
 else
 # Don't strip the binary, just copy it.  We can't skip this step
 # because a copy of the binary must appear at LOCAL_BUILT_MODULE.
-#
-# If the binary we're copying is acp or a prerequisite,
-# use cp(1) instead.
-ifneq ($(LOCAL_ACP_UNAVAILABLE),true)
-$(strip_output): $(strip_input) | $(ACP)
-	@echo "target Unstripped: $(PRIVATE_MODULE) ($@)"
-	$(copy-file-to-target)
-else
 $(strip_output): $(strip_input)
 	@echo "target Unstripped: $(PRIVATE_MODULE) ($@)"
-	$(copy-file-to-target-with-cp)
-endif
+	$(copy-file-to-target)
 endif # my_strip_module
 
 $(cleantarget): PRIVATE_CLEAN_FILES += \
diff --git a/core/envsetup.mk b/core/envsetup.mk
index 4456809..c3cd3c5 100644
--- a/core/envsetup.mk
+++ b/core/envsetup.mk
@@ -54,6 +54,8 @@
   HOST_OS := darwin
 endif
 
+HOST_OS_EXTRA:=$(shell python -c "import platform; print(platform.platform())")
+
 # BUILD_OS is the real host doing the build.
 BUILD_OS := $(HOST_OS)
 
@@ -322,10 +324,19 @@
 
 # Out for TARGET_2ND_ARCH
 TARGET_2ND_ARCH_VAR_PREFIX := $(HOST_2ND_ARCH_VAR_PREFIX)
+ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+# With this you can reference the arm binary translation library with libfoo_arm in PRODUCT_PACKAGES.
+TARGET_2ND_ARCH_MODULE_SUFFIX := _$(TARGET_2ND_ARCH)
+else
 TARGET_2ND_ARCH_MODULE_SUFFIX := $(HOST_2ND_ARCH_MODULE_SUFFIX)
+endif
 $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_INTERMEDIATES := $(PRODUCT_OUT)/obj_$(TARGET_2ND_ARCH)
 $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_INTERMEDIATE_LIBRARIES := $($(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_INTERMEDIATES)/lib
+ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_SHARED_LIBRARIES := $(target_out_shared_libraries_base)/lib/$(TARGET_2ND_ARCH)
+else
 $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_SHARED_LIBRARIES := $(target_out_shared_libraries_base)/lib
+endif
 $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_RENDERSCRIPT_BITCODE := $($(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_SHARED_LIBRARIES)
 $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_EXECUTABLES := $(TARGET_OUT_EXECUTABLES)
 $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_APPS := $(TARGET_OUT_APPS)
@@ -349,7 +360,11 @@
 $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_DATA_EXECUTABLES := $(TARGET_OUT_DATA_EXECUTABLES)
 $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_DATA_SHARED_LIBRARIES := $($(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_SHARED_LIBRARIES)
 $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_DATA_APPS := $(TARGET_OUT_DATA_APPS)
+ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_DATA_NATIVE_TESTS := $(TARGET_OUT_DATA)/nativetest/$(TARGET_2ND_ARCH)
+else
 $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_DATA_NATIVE_TESTS := $(TARGET_OUT_DATA)/nativetest
+endif
 
 TARGET_OUT_CACHE := $(PRODUCT_OUT)/cache
 
@@ -369,10 +384,15 @@
 endif
 TARGET_OUT_VENDOR_JAVA_LIBRARIES := $(TARGET_OUT_VENDOR)/framework
 TARGET_OUT_VENDOR_APPS := $(TARGET_OUT_VENDOR)/app
+TARGET_OUT_VENDOR_APPS_PRIVILEGED := $(TARGET_OUT_VENDOR)/priv-app
 TARGET_OUT_VENDOR_ETC := $(TARGET_OUT_VENDOR)/etc
 
 $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_VENDOR_EXECUTABLES := $(TARGET_OUT_VENDOR_EXECUTABLES)
+ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_VENDOR_SHARED_LIBRARIES := $(TARGET_OUT_VENDOR)/lib/$(TARGET_2ND_ARCH)
+else
 $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_VENDOR_SHARED_LIBRARIES := $(TARGET_OUT_VENDOR)/lib
+endif
 $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_VENDOR_APPS := $(TARGET_OUT_VENDOR_APPS)
 
 TARGET_OUT_OEM := $(PRODUCT_OUT)/$(TARGET_COPY_OUT_OEM)
@@ -388,7 +408,11 @@
 TARGET_OUT_OEM_ETC := $(TARGET_OUT_OEM)/etc
 
 $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_OEM_EXECUTABLES := $(TARGET_OUT_OEM_EXECUTABLES)
+ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_OEM_SHARED_LIBRARIES := $(TARGET_OUT_OEM)/lib/$(TARGET_2ND_ARCH)
+else
 $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_OEM_SHARED_LIBRARIES := $(TARGET_OUT_OEM)/lib
+endif
 $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_OEM_APPS := $(TARGET_OUT_OEM_APPS)
 
 TARGET_OUT_ODM := $(PRODUCT_OUT)/$(TARGET_COPY_OUT_ODM)
@@ -402,7 +426,11 @@
 TARGET_OUT_ODM_ETC := $(TARGET_OUT_ODM)/etc
 
 $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_ODM_EXECUTABLES := $(TARGET_OUT_ODM_EXECUTABLES)
+ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+$(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_ODM_SHARED_LIBRARIES := $(TARGET_OUT_ODM)/lib/$(TARGET_2ND_ARCH)
+else
 $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_ODM_SHARED_LIBRARIES := $(TARGET_OUT_ODM)/lib
+endif
 $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_ODM_APPS := $(TARGET_OUT_ODM_APPS)
 
 TARGET_OUT_BREAKPAD := $(PRODUCT_OUT)/breakpad
diff --git a/core/executable.mk b/core/executable.mk
index 70ef0d9..1bd9db1 100644
--- a/core/executable.mk
+++ b/core/executable.mk
@@ -17,6 +17,10 @@
 
 ifneq (true,$(my_skip_this_target))
 
+ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+LOCAL_MULTILIB := first
+endif
+
 my_prefix := TARGET_
 include $(BUILD_SYSTEM)/multilib.mk
 
@@ -70,9 +74,6 @@
 OVERRIDE_BUILT_MODULE_PATH :=
 LOCAL_BUILT_MODULE :=
 LOCAL_INSTALLED_MODULE :=
-LOCAL_MODULE_STEM :=
-LOCAL_BUILT_MODULE_STEM :=
-LOCAL_INSTALLED_MODULE_STEM :=
 LOCAL_INTERMEDIATE_TARGETS :=
 include $(BUILD_SYSTEM)/executable_internal.mk
 endif
diff --git a/core/executable_internal.mk b/core/executable_internal.mk
index 2105f58..febea98 100644
--- a/core/executable_internal.mk
+++ b/core/executable_internal.mk
@@ -70,15 +70,16 @@
 $(linked_module): PRIVATE_TARGET_CRTBEGIN_STATIC_O := $(my_target_crtbegin_static_o)
 $(linked_module): PRIVATE_TARGET_CRTEND_O := $(my_target_crtend_o)
 $(linked_module): PRIVATE_TARGET_OUT_INTERMEDIATE_LIBRARIES := $($(LOCAL_2ND_ARCH_VAR_PREFIX)TARGET_OUT_INTERMEDIATE_LIBRARIES)
+$(linked_module): PRIVATE_POST_LINK_CMD := $(LOCAL_POST_LINK_CMD)
 
 ifeq ($(LOCAL_FORCE_STATIC_EXECUTABLE),true)
-$(linked_module): PRIVATE_POST_LINK_CMD := $(LOCAL_POST_LINK_CMD)
 $(linked_module): $(my_target_crtbegin_static_o) $(all_objects) $(all_libraries) $(my_target_crtend_o)
 	$(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)
 	$(transform-o-to-executable)
+	$(PRIVATE_POST_LINK_CMD)
 endif
 
 endif  # skip_build_from_source
diff --git a/core/executable_prefer_symlink.mk b/core/executable_prefer_symlink.mk
index 931550f..1640b32 100644
--- a/core/executable_prefer_symlink.mk
+++ b/core/executable_prefer_symlink.mk
@@ -42,7 +42,7 @@
 # $(my_symlink) doesn't need to depend on $(PRIVATE_SRC_BINARY_NAME): we can generate symlink to nonexistent file.
 # If you add the dependency, make would compare the timestamp of a file against that of its symlink:
 # they are always equal, because make follows symlink.
-$(my_symlink): $(LOCAL_MODULE_MAKEFILE_DEP)
+$(my_symlink):
 	@echo "Symlink: $@ -> $(PRIVATE_SRC_BINARY_NAME)"
 	@mkdir -p $(dir $@)
 	@rm -rf $@
diff --git a/core/goma.mk b/core/goma.mk
index 6535b3e..0d5f428 100644
--- a/core/goma.mk
+++ b/core/goma.mk
@@ -16,16 +16,6 @@
 
 # Notice: this works only with Google's Goma build infrastructure.
 ifneq ($(filter-out false,$(USE_GOMA)),)
-  # Check if USE_NINJA is not false because GNU make won't work well
-  # with goma. Note this file is evaluated twice, once by GNU make and
-  # once by kati with USE_NINJA=false. We do this check in the former
-  # pass.
-  ifndef KATI
-    ifeq ($(USE_NINJA),false)
-      $(error USE_GOMA=true is not compatible with USE_NINJA=false)
-    endif
-  endif
-
   # Goma requires a lot of processes and file descriptors.
   ifeq ($(shell echo $$(($$(ulimit -u) < 2500 || $$(ulimit -n) < 16000))),1)
     $(warning Max user processes and/or open files are insufficient)
@@ -56,11 +46,7 @@
   # gomacc can start goma client's daemon process automatically, but
   # it is safer and faster to start up it beforehand. We run this as a
   # background process so this won't slow down the build.
-  # We use "ensure_start" command when the compiler_proxy is already
-  # running and uses GOMA_HERMETIC=error flag. The compiler_proxy will
-  # restart otherwise.
-  # TODO(hamaji): Remove this condition after http://b/25676777 is fixed.
-  $(shell ( if ( curl http://localhost:$$($(GOMA_CC) port)/flagz | grep GOMA_HERMETIC=error ); then cmd=ensure_start; else cmd=restart; fi; GOMA_HERMETIC=error $(goma_ctl) $${cmd} ) &> /dev/null &)
+  $(shell ( GOMA_HERMETIC=error $(goma_ctl) ensure_start ) &> /dev/null &)
 
   goma_ctl :=
   goma_dir :=
diff --git a/core/host_dalvik_java_library.mk b/core/host_dalvik_java_library.mk
index 683b8b8..e1d62cc 100644
--- a/core/host_dalvik_java_library.mk
+++ b/core/host_dalvik_java_library.mk
@@ -23,31 +23,35 @@
 ifeq ($(HOST_OS),linux)
 USE_CORE_LIB_BOOTCLASSPATH := true
 
+#################################
+include $(BUILD_SYSTEM)/configure_local_jack.mk
+#################################
+
 #######################################
 include $(BUILD_SYSTEM)/host_java_library_common.mk
 #######################################
+ifeq ($(LOCAL_IS_STATIC_JAVA_LIBRARY),true)
+  # For static library, $(LOCAL_BUILT_MODULE) is $(full_classes_jack).
+  LOCAL_BUILT_MODULE_STEM := classes.jack
+endif
 
 ifneq ($(LOCAL_NO_STANDARD_LIBRARIES),true)
   LOCAL_JAVA_LIBRARIES +=  core-oj-hostdex
   LOCAL_JAVA_LIBRARIES +=  core-libart-hostdex
 endif
 
-full_classes_compiled_jar := $(intermediates.COMMON)/classes-full-debug.jar
-full_classes_jarjar_jar := $(intermediates.COMMON)/classes-jarjar.jar
-full_classes_jar := $(intermediates.COMMON)/classes.jar
 full_classes_jack := $(intermediates.COMMON)/classes.jack
+jack_check_timestamp := $(intermediates.COMMON)/jack.check.timestamp
 built_dex := $(intermediates.COMMON)/classes.dex
 
 LOCAL_INTERMEDIATE_TARGETS += \
-    $(full_classes_compiled_jar) \
-    $(full_classes_jarjar_jar) \
     $(full_classes_jack) \
-    $(full_classes_jar) \
+    $(jack_check_timestamp) \
     $(built_dex)
 
 # See comment in java.mk
 ifndef LOCAL_CHECKED_MODULE
-LOCAL_CHECKED_MODULE := $(full_classes_compiled_jar)
+LOCAL_CHECKED_MODULE := $(jack_check_timestamp)
 endif
 
 #######################################
@@ -59,75 +63,29 @@
 
 include $(BUILD_SYSTEM)/java_common.mk
 
-# The layers file allows you to enforce a layering between java packages.
-# Run build/tools/java-layers.py for more details.
-layers_file := $(addprefix $(LOCAL_PATH)/, $(LOCAL_JAVA_LAYERS_FILE))
-
 $(cleantarget): PRIVATE_CLEAN_FILES += $(intermediates.COMMON)
 
-$(full_classes_compiled_jar): PRIVATE_JAVA_LAYERS_FILE := $(layers_file)
-$(full_classes_compiled_jar): PRIVATE_JAVACFLAGS := $(GLOBAL_JAVAC_DEBUG_FLAGS) $(LOCAL_JAVACFLAGS)
-$(full_classes_compiled_jar): PRIVATE_JAR_EXCLUDE_FILES :=
-$(full_classes_compiled_jar): PRIVATE_JAR_PACKAGES :=
-$(full_classes_compiled_jar): PRIVATE_JAR_EXCLUDE_PACKAGES :=
-$(full_classes_compiled_jar): \
-        $(java_sources) \
-        $(java_resource_sources) \
-        $(full_java_lib_deps) \
-        $(jar_manifest_file) \
-        $(proto_java_sources_file_stamp) \
-        $(LOCAL_MODULE_MAKEFILE_DEP) \
-        $(LOCAL_ADDITIONAL_DEPENDENCIES)
-	$(transform-host-java-to-package)
-
-# Run jarjar if necessary, otherwise just copy the file.
-ifneq ($(strip $(LOCAL_JARJAR_RULES)),)
-$(full_classes_jarjar_jar): PRIVATE_JARJAR_RULES := $(LOCAL_JARJAR_RULES)
-$(full_classes_jarjar_jar): $(full_classes_compiled_jar) $(LOCAL_JARJAR_RULES) | $(JARJAR)
-	@echo JarJar: $@
-	$(hide) java -jar $(JARJAR) process $(PRIVATE_JARJAR_RULES) $< $@
-else
-$(full_classes_jarjar_jar): $(full_classes_compiled_jar) | $(ACP)
-	@echo Copying: $@
-	$(hide) $(ACP) -fp $< $@
-endif
-
-$(full_classes_jar): $(full_classes_jarjar_jar) | $(ACP)
-	@echo Copying: $@
-	$(hide) $(ACP) -fp $< $@
-
-ifndef LOCAL_JACK_ENABLED
-$(built_dex): PRIVATE_INTERMEDIATES_DIR := $(intermediates.COMMON)
-$(built_dex): PRIVATE_DX_FLAGS := $(LOCAL_DX_FLAGS)
-$(built_dex): $(full_classes_jar) $(DX)
-	$(transform-classes.jar-to-dex)
-
-$(LOCAL_BUILT_MODULE): PRIVATE_DEX_FILE := $(built_dex)
-$(LOCAL_BUILT_MODULE): PRIVATE_SOURCE_ARCHIVE := $(full_classes_jarjar_jar)
-$(LOCAL_BUILT_MODULE): PRIVATE_DONT_DELETE_JAR_DIRS := $(LOCAL_DONT_DELETE_JAR_DIRS)
-$(LOCAL_BUILT_MODULE): $(built_dex) $(java_resource_sources)
-	@echo "Host Jar: $(PRIVATE_MODULE) ($@)"
-	$(call initialize-package-file,$(PRIVATE_SOURCE_ARCHIVE),$@)
-	$(add-dex-to-package)
-
-else # LOCAL_JACK_ENABLED
 $(LOCAL_INTERMEDIATE_TARGETS): \
-	PRIVATE_JACK_INTERMEDIATES_DIR := $(intermediates.COMMON)/jack-rsc
+  PRIVATE_JACK_INTERMEDIATES_DIR := $(intermediates.COMMON)/jack-rsc
 
 ifeq ($(LOCAL_JACK_ENABLED),incremental)
 $(LOCAL_INTERMEDIATE_TARGETS): \
-	PRIVATE_JACK_INCREMENTAL_DIR := $(intermediates.COMMON)/jack-incremental
+  PRIVATE_JACK_INCREMENTAL_DIR := $(intermediates.COMMON)/jack-incremental
 else
 $(LOCAL_INTERMEDIATE_TARGETS): \
-	PRIVATE_JACK_INCREMENTAL_DIR :=
+  PRIVATE_JACK_INCREMENTAL_DIR :=
 endif
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_JACK_FLAGS := $(GLOBAL_JAVAC_DEBUG_FLAGS) $(LOCAL_JACK_FLAGS)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_JACK_VERSION := $(LOCAL_JACK_VERSION)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_JACK_MIN_SDK_VERSION := $(PLATFORM_JACK_MIN_SDK_VERSION)
 
+jack_all_deps := $(java_sources) $(java_resource_sources) $(full_jack_deps) \
+        $(jar_manifest_file) $(proto_java_sources_file_stamp) \
+        $(LOCAL_ADDITIONAL_DEPENDENCIES) $(JACK_DEFAULT_ARGS) $(JACK)
+
+ifneq ($(LOCAL_IS_STATIC_JAVA_LIBRARY),true)
 $(built_dex): PRIVATE_CLASSES_JACK := $(full_classes_jack)
-$(built_dex): PRIVATE_JACK_FLAGS := $(GLOBAL_JAVAC_DEBUG_FLAGS) $(LOCAL_JACK_FLAGS)
-$(built_dex): PRIVATE_JACK_VERSION := $(LOCAL_JACK_VERSION)
-$(built_dex): $(java_sources) $(java_resource_sources) $(full_jack_lib_deps) \
-        $(jar_manifest_file) $(proto_java_sources_file_stamp) $(LOCAL_MODULE_MAKEFILE_DEP) \
-        $(LOCAL_ADDITIONAL_DEPENDENCIES) $(JACK) | setup-jack-server
+$(built_dex): $(jack_all_deps) | setup-jack-server
 	@echo Building with Jack: $@
 	$(jack-java-to-dex)
 
@@ -144,7 +102,16 @@
 	$(add-dex-to-package)
 	$(add-carried-jack-resources)
 
-endif # LOCAL_JACK_ENABLED
+else  # LOCAL_IS_STATIC_JAVA_LIBRARY
+$(full_classes_jack): $(jack_all_deps) | setup-jack-server
+	@echo Building with Jack: $@
+	$(java-to-jack)
+
+endif  # LOCAL_IS_STATIC_JAVA_LIBRARY
+
+$(jack_check_timestamp): $(jack_all_deps) | setup-jack-server
+	@echo Checking build with Jack: $@
+	$(jack-check-java)
 
 USE_CORE_LIB_BOOTCLASSPATH :=
 
diff --git a/core/host_dalvik_static_java_library.mk b/core/host_dalvik_static_java_library.mk
index 47ca002..46b8240 100644
--- a/core/host_dalvik_static_java_library.mk
+++ b/core/host_dalvik_static_java_library.mk
@@ -19,41 +19,10 @@
 # These libraries will be compiled against libcore and not the host
 # JRE.
 #
-ifeq ($(HOST_OS),linux)
-
 LOCAL_UNINSTALLABLE_MODULE := true
 LOCAL_IS_STATIC_JAVA_LIBRARY := true
-USE_CORE_LIB_BOOTCLASSPATH := true
-LOCAL_JAVA_LIBRARIES += core-oj-hostdex
-LOCAL_JAVA_LIBRARIES += core-libart-hostdex
 
-intermediates.COMMON := $(call intermediates-dir-for,JAVA_LIBRARIES,$(LOCAL_MODULE),true,COMMON,)
-full_classes_jack := $(intermediates.COMMON)/classes.jack
-LOCAL_INTERMEDIATE_TARGETS += \
-    $(full_classes_jack)
-
-include $(BUILD_SYSTEM)/host_java_library.mk
-# proguard is not supported
-# *.proto files are not supported
-$(full_classes_jack): PRIVATE_JACK_FLAGS := $(GLOBAL_JAVAC_DEBUG_FLAGS) $(LOCAL_JACK_FLAGS)
-$(full_classes_jack): PRIVATE_JACK_VERSION := $(LOCAL_JACK_VERSION)
-$(full_classes_jack): PRIVATE_JARJAR_RULES := $(LOCAL_JARJAR_RULES)
-$(full_classes_jack): \
-	PRIVATE_JACK_INTERMEDIATES_DIR := $(intermediates.COMMON)/jack-rsc
-ifeq ($(LOCAL_JACK_ENABLED),incremental)
-$(full_classes_jack): \
-	PRIVATE_JACK_INCREMENTAL_DIR := $(intermediates.COMMON)/jack-incremental
-else
-$(full_classes_jack): \
-	PRIVATE_JACK_INCREMENTAL_DIR :=
-endif
-$(full_classes_jack): $(java_sources) $(java_resource_sources) $(full_jack_lib_deps) \
-        $(jar_manifest_file) $(layers_file) $(LOCAL_MODULE_MAKEFILE_DEP) \
-        $(LOCAL_ADDITIONAL_DEPENDENCIES) $(LOCAL_JARJAR_RULES) \
-        $(JACK) | setup-jack-server
-	@echo Building with Jack: $@
-	$(java-to-jack)
+include $(BUILD_SYSTEM)/host_dalvik_java_library.mk
 
 USE_CORE_LIB_BOOTCLASSPATH :=
 LOCAL_IS_STATIC_JAVA_LIBRARY :=
-endif
diff --git a/core/host_java_library.mk b/core/host_java_library.mk
index 052c571..0d71c01 100644
--- a/core/host_java_library.mk
+++ b/core/host_java_library.mk
@@ -30,13 +30,15 @@
 endif
 
 full_classes_compiled_jar := $(intermediates.COMMON)/classes-full-debug.jar
+full_classes_jarjar_jar := $(intermediates.COMMON)/classes-jarjar.jar
 emma_intermediates_dir := $(intermediates.COMMON)/emma_out
 # emma is hardcoded to use the leaf name of its input for the output file --
 # only the output directory can be changed
-full_classes_emma_jar := $(emma_intermediates_dir)/lib/$(notdir $(full_classes_compiled_jar))
+full_classes_emma_jar := $(emma_intermediates_dir)/lib/$(notdir $(full_classes_jarjar_jar))
 
 LOCAL_INTERMEDIATE_TARGETS += \
     $(full_classes_compiled_jar) \
+    $(full_classes_jarjar_jar) \
     $(full_classes_emma_jar)
 
 #######################################
@@ -49,30 +51,6 @@
 
 include $(BUILD_SYSTEM)/java_common.mk
 
-ifeq (true,$(LOCAL_EMMA_INSTRUMENT))
-$(full_classes_emma_jar): PRIVATE_EMMA_COVERAGE_FILE := $(intermediates.COMMON)/coverage.em
-$(full_classes_emma_jar): PRIVATE_EMMA_INTERMEDIATES_DIR := $(emma_intermediates_dir)
-ifdef LOCAL_EMMA_COVERAGE_FILTER
-$(full_classes_emma_jar): PRIVATE_EMMA_COVERAGE_FILTER := $(LOCAL_EMMA_COVERAGE_FILTER)
-else
-# by default, avoid applying emma instrumentation onto emma classes itself,
-# otherwise there will be exceptions thrown
-$(full_classes_emma_jar): PRIVATE_EMMA_COVERAGE_FILTER := *,-emma,-emmarun,-com.vladium.*
-endif
-# this rule will generate both $(PRIVATE_EMMA_COVERAGE_FILE) and
-# $(full_classes_emma_jar)
-$(full_classes_emma_jar) : $(full_classes_compiled_jar) | $(EMMA_JAR)
-	$(transform-classes.jar-to-emma)
-
-$(built_javalib_jar) : $(full_classes_emma_jar)
-	@echo Copying: $@
-	$(hide) $(ACP) -fp $< $@
-
-else # LOCAL_EMMA_INSTRUMENT
-# Directly build into $(built_javalib_jar).
-full_classes_compiled_jar := $(built_javalib_jar)
-endif # LOCAL_EMMA_INSTRUMENT
-
 # The layers file allows you to enforce a layering between java packages.
 # Run build/tools/java-layers.py for more details.
 layers_file := $(addprefix $(LOCAL_PATH)/, $(LOCAL_JAVA_LAYERS_FILE))
@@ -88,6 +66,44 @@
         $(full_java_lib_deps) \
         $(jar_manifest_file) \
         $(proto_java_sources_file_stamp) \
-        $(LOCAL_MODULE_MAKEFILE_DEP) \
         $(LOCAL_ADDITIONAL_DEPENDENCIES)
 	$(transform-host-java-to-package)
+
+javac-check : $(full_classes_compiled_jar)
+
+# Run jarjar if necessary, otherwise just copy the file.
+ifneq ($(strip $(LOCAL_JARJAR_RULES)),)
+$(full_classes_jarjar_jar): PRIVATE_JARJAR_RULES := $(LOCAL_JARJAR_RULES)
+$(full_classes_jarjar_jar): $(full_classes_compiled_jar) $(LOCAL_JARJAR_RULES) | $(JARJAR)
+	@echo JarJar: $@
+	$(hide) java -jar $(JARJAR) process $(PRIVATE_JARJAR_RULES) $< $@
+else
+$(full_classes_jarjar_jar): $(full_classes_compiled_jar) | $(ACP)
+	@echo Copying: $@
+	$(hide) $(ACP) -fp $< $@
+endif
+
+ifeq (true,$(LOCAL_EMMA_INSTRUMENT))
+$(full_classes_emma_jar): PRIVATE_EMMA_COVERAGE_FILE := $(intermediates.COMMON)/coverage.em
+$(full_classes_emma_jar): PRIVATE_EMMA_INTERMEDIATES_DIR := $(emma_intermediates_dir)
+ifdef LOCAL_EMMA_COVERAGE_FILTER
+$(full_classes_emma_jar): PRIVATE_EMMA_COVERAGE_FILTER := $(LOCAL_EMMA_COVERAGE_FILTER)
+else
+# by default, avoid applying emma instrumentation onto emma classes itself,
+# otherwise there will be exceptions thrown
+$(full_classes_emma_jar): PRIVATE_EMMA_COVERAGE_FILTER := *,-emma,-emmarun,-com.vladium.*
+endif
+# this rule will generate both $(PRIVATE_EMMA_COVERAGE_FILE) and
+# $(full_classes_emma_jar)
+$(full_classes_emma_jar) : $(full_classes_jarjar_jar) | $(EMMA_JAR)
+	$(transform-classes.jar-to-emma)
+
+$(LOCAL_BUILT_MODULE) : $(full_classes_emma_jar)
+	@echo Copying: $@
+	$(hide) $(ACP) -fp $< $@
+
+else # LOCAL_EMMA_INSTRUMENT
+$(LOCAL_BUILT_MODULE) : $(full_classes_jarjar_jar) | $(ACP)
+	@echo Copying: $@
+	$(hide) $(ACP) -fp $< $@
+endif # LOCAL_EMMA_INSTRUMENT
diff --git a/core/host_java_library_common.mk b/core/host_java_library_common.mk
index 35a6e28..8df4b37 100644
--- a/core/host_java_library_common.mk
+++ b/core/host_java_library_common.mk
@@ -26,19 +26,6 @@
 intermediates := $(call local-intermediates-dir)
 intermediates.COMMON := $(call local-intermediates-dir,COMMON)
 
-built_javalib_jar := $(intermediates)/javalib.jar
-
-#################################
-include $(BUILD_SYSTEM)/configure_local_jack.mk
-#################################
-
-ifdef LOCAL_JACK_ENABLED
-ifdef LOCAL_IS_STATIC_JAVA_LIBRARY
-LOCAL_BUILT_MODULE_STEM := classes.jack
-LOCAL_INTERMEDIATE_TARGETS += $(built_javalib_jar)
-endif
-endif
-
 # base_rules.mk looks at this
 all_res_assets :=
 
@@ -61,4 +48,3 @@
 
 LOCAL_INTERMEDIATE_SOURCE_DIR := $(intermediates.COMMON)/src
 LOCAL_JAVA_LIBRARIES := $(sort $(LOCAL_JAVA_LIBRARIES))
-
diff --git a/core/host_shared_library_internal.mk b/core/host_shared_library_internal.mk
index 272e76f..bfbde21 100644
--- a/core/host_shared_library_internal.mk
+++ b/core/host_shared_library_internal.mk
@@ -44,7 +44,6 @@
 $(LOCAL_BUILT_MODULE): \
         $(all_objects) \
         $(all_libraries) \
-        $(LOCAL_MODULE_MAKEFILE_DEP) \
         $(LOCAL_ADDITIONAL_DEPENDENCIES)
 	$(transform-host-o-to-shared-lib)
 
diff --git a/core/host_test_internal.mk b/core/host_test_internal.mk
index 7f6aff0..e4fa4c5 100644
--- a/core/host_test_internal.mk
+++ b/core/host_test_internal.mk
@@ -9,6 +9,5 @@
 LOCAL_LDLIBS_darwin += -lpthread
 
 LOCAL_CFLAGS += -DGTEST_HAS_STD_STRING -O0 -g
-LOCAL_C_INCLUDES +=  external/gtest/include
 
 LOCAL_STATIC_LIBRARIES += libgtest_main_host libgtest_host
diff --git a/core/java.mk b/core/java.mk
index 9b8ee12..6ee983e 100644
--- a/core/java.mk
+++ b/core/java.mk
@@ -34,14 +34,27 @@
       else
         LOCAL_JAVA_LIBRARIES := sdk_v$(LOCAL_SDK_VERSION) $(LOCAL_JAVA_LIBRARIES)
       endif
+
+      ifeq ($(LOCAL_SDK_VERSION),current)
+        my_jack_min_sdk_version := $(PLATFORM_JACK_MIN_SDK_VERSION)
+      else ifeq ($(LOCAL_SDK_VERSION),system_current)
+        my_jack_min_sdk_version := $(PLATFORM_JACK_MIN_SDK_VERSION)
+      else
+        my_jack_min_sdk_version := $(LOCAL_SDK_VERSION)
+      endif
     endif
   endif
 else
+  my_jack_min_sdk_version := $(PLATFORM_JACK_MIN_SDK_VERSION)
   ifneq ($(LOCAL_NO_STANDARD_LIBRARIES),true)
     LOCAL_JAVA_LIBRARIES := $(TARGET_DEFAULT_JAVA_LIBRARIES) $(LOCAL_JAVA_LIBRARIES)
   endif
 endif
 
+ifneq (,$(strip $(LOCAL_MIN_SDK_VERSION)))
+  my_jack_min_sdk_version := $(LOCAL_MIN_SDK_VERSION)
+endif
+
 proto_sources := $(filter %.proto,$(LOCAL_SRC_FILES))
 ifneq ($(proto_sources),)
 ifeq ($(LOCAL_PROTOC_OPTIMIZE_TYPE),micro)
@@ -77,34 +90,14 @@
 intermediates := $(call local-intermediates-dir)
 intermediates.COMMON := $(call local-intermediates-dir,COMMON)
 
-# Choose leaf name for the compiled jar file.
-ifeq ($(LOCAL_EMMA_INSTRUMENT),true)
-full_classes_compiled_jar_leaf := classes-no-debug-var.jar
-built_dex_intermediate_leaf := no-local
-else
-full_classes_compiled_jar_leaf := classes-full-debug.jar
-built_dex_intermediate_leaf := with-local
-endif
-
 ifeq ($(LOCAL_PROGUARD_ENABLED),disabled)
 LOCAL_PROGUARD_ENABLED :=
 endif
 
-ifdef LOCAL_PROGUARD_ENABLED
-proguard_jar_leaf := proguard.classes.jar
-else
-proguard_jar_leaf := noproguard.classes.jar
-endif
-
-full_classes_compiled_jar := $(intermediates.COMMON)/$(full_classes_compiled_jar_leaf)
-jarjar_leaf := classes-jarjar.jar
-full_classes_jarjar_jar := $(intermediates.COMMON)/$(jarjar_leaf)
-emma_intermediates_dir := $(intermediates.COMMON)/emma_out
-# emma is hardcoded to use the leaf name of its input for the output file --
-# only the output directory can be changed
-full_classes_emma_jar := $(emma_intermediates_dir)/lib/$(jarjar_leaf)
-full_classes_proguard_jar := $(intermediates.COMMON)/$(proguard_jar_leaf)
-built_dex_intermediate := $(intermediates.COMMON)/$(built_dex_intermediate_leaf)/classes.dex
+full_classes_compiled_jar := $(intermediates.COMMON)/classes-full-debug.jar
+full_classes_jarjar_jar := $(intermediates.COMMON)/classes-jarjar.jar
+full_classes_proguard_jar := $(intermediates.COMMON)/proguard.classes.jar
+built_dex_intermediate := $(intermediates.COMMON)/dex-dir/classes.dex
 full_classes_stubs_jar := $(intermediates.COMMON)/stubs.jar
 
 ifeq ($(LOCAL_MODULE_CLASS)$(LOCAL_SRC_FILES)$(LOCAL_STATIC_JAVA_LIBRARIES)$(LOCAL_SOURCE_FILES_ALL_GENERATED),APPS)
@@ -119,16 +112,17 @@
 full_classes_jack := $(intermediates.COMMON)/classes.jack
 # intermediate Jack library without shrink and obfuscation
 noshrob_classes_jack := $(intermediates.COMMON)/classes.noshrob.jack
+jack_check_timestamp := $(intermediates.COMMON)/jack.check.timestamp
 
 LOCAL_INTERMEDIATE_TARGETS += \
     $(full_classes_compiled_jar) \
     $(full_classes_jarjar_jar) \
-    $(full_classes_emma_jar) \
     $(full_classes_jar) \
     $(full_classes_proguard_jar) \
     $(built_dex_intermediate) \
     $(full_classes_jack) \
     $(noshrob_classes_jack) \
+    $(jack_check_timestamp) \
     $(built_dex) \
     $(full_classes_stubs_jar)
 
@@ -304,7 +298,6 @@
 
 $(aidl_java_sources): $(intermediates.COMMON)/src/%.java: \
         $(LOCAL_PATH)/%.aidl \
-        $(LOCAL_MODULE_MAKEFILE_DEP) \
         $(LOCAL_ADDITIONAL_DEPENDENCIES) \
         $(AIDL) \
         $(aidl_preprocess_import)
@@ -324,7 +317,7 @@
 # command line.
 ifndef LOCAL_CHECKED_MODULE
 ifdef full_classes_jar
-LOCAL_CHECKED_MODULE := $(full_classes_compiled_jar)
+LOCAL_CHECKED_MODULE := $(jack_check_timestamp)
 endif
 endif
 
@@ -340,7 +333,8 @@
 logtags_java_sources := $(patsubst %.logtags,%.java,$(addprefix $(intermediates.COMMON)/src/, $(logtags_sources)))
 logtags_sources := $(addprefix $(LOCAL_PATH)/, $(logtags_sources))
 
-$(logtags_java_sources): $(intermediates.COMMON)/src/%.java: $(LOCAL_PATH)/%.logtags $(TARGET_OUT_COMMON_INTERMEDIATES)/all-event-log-tags.txt
+$(logtags_java_sources): PRIVATE_MERGED_TAG := $(TARGET_OUT_COMMON_INTERMEDIATES)/all-event-log-tags.txt
+$(logtags_java_sources): $(intermediates.COMMON)/src/%.java: $(LOCAL_PATH)/%.logtags $(TARGET_OUT_COMMON_INTERMEDIATES)/all-event-log-tags.txt $(JAVATAGS) build/tools/event_log_tags.py
 	$(transform-logtags-to-java)
 
 else
@@ -366,6 +360,9 @@
 endif
 endif
 
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_JACK_MIN_SDK_VERSION := $(my_jack_min_sdk_version)
+my_jack_min_sdk_version :=
+
 # Since we're using intermediates.COMMON, make sure that it gets cleaned
 # properly.
 $(cleantarget): PRIVATE_CLEAN_FILES += $(intermediates.COMMON)
@@ -392,10 +389,6 @@
 $(full_classes_compiled_jar): PRIVATE_JAVA_LAYERS_FILE := $(layers_file)
 $(full_classes_compiled_jar): PRIVATE_WARNINGS_ENABLE := $(LOCAL_WARNINGS_ENABLE)
 
-ifdef LOCAL_RMTYPEDEFS
-$(full_classes_compiled_jar): | $(RMTYPEDEFS)
-endif
-
 # Compile the java files to a .jar file.
 # This intentionally depends on java_sources, not all_java_sources.
 # Deps for generated source files must be handled separately,
@@ -413,10 +406,11 @@
         $(layers_file) \
         $(RenderScript_file_stamp) \
         $(proto_java_sources_file_stamp) \
-        $(LOCAL_MODULE_MAKEFILE_DEP) \
         $(LOCAL_ADDITIONAL_DEPENDENCIES)
 	$(transform-java-to-classes.jar)
 
+javac-check : $(full_classes_compiled_jar)
+
 # Run jarjar if necessary, otherwise just copy the file.
 ifneq ($(strip $(LOCAL_JARJAR_RULES)),)
 $(full_classes_jarjar_jar): PRIVATE_JARJAR_RULES := $(LOCAL_JARJAR_RULES)
@@ -429,31 +423,8 @@
 	$(hide) $(ACP) -fp $< $@
 endif
 
-ifeq ($(LOCAL_EMMA_INSTRUMENT),true)
-$(full_classes_emma_jar): PRIVATE_EMMA_COVERAGE_FILE := $(intermediates.COMMON)/coverage.em
-$(full_classes_emma_jar): PRIVATE_EMMA_INTERMEDIATES_DIR := $(emma_intermediates_dir)
-# module level coverage filter can be defined using LOCAL_EMMA_COVERAGE_FILTER
-# in Android.mk
-ifdef LOCAL_EMMA_COVERAGE_FILTER
-$(full_classes_emma_jar): PRIVATE_EMMA_COVERAGE_FILTER := $(LOCAL_EMMA_COVERAGE_FILTER)
-else
-# by default, avoid applying emma instrumentation onto emma classes itself,
-# otherwise there will be exceptions thrown
-$(full_classes_emma_jar): PRIVATE_EMMA_COVERAGE_FILTER := *,-emma,-emmarun,-com.vladium.*
-endif
-# this rule will generate both $(PRIVATE_EMMA_COVERAGE_FILE) and
-# $(full_classes_emma_jar)
-$(full_classes_emma_jar): $(full_classes_jarjar_jar) | $(EMMA_JAR)
-	$(transform-classes.jar-to-emma)
-
-else
-$(full_classes_emma_jar): $(full_classes_jarjar_jar) | $(ACP)
-	@echo Copying: $@
-	$(copy-file-to-target)
-endif
-
 # Keep a copy of the jar just before proguard processing.
-$(full_classes_jar): $(full_classes_emma_jar) | $(ACP)
+$(full_classes_jar): $(full_classes_jarjar_jar) | $(ACP)
 	@echo Copying: $@
 	$(hide) $(ACP) -fp $< $@
 
@@ -466,6 +437,7 @@
     $(error invalid value for LOCAL_PROGUARD_ENABLED: $(LOCAL_PROGUARD_ENABLED))
 endif
 proguard_dictionary := $(intermediates.COMMON)/proguard_dictionary
+jack_dictionary := $(intermediates.COMMON)/jack_dictionary
 
 # Hack: see b/20667396
 # When an app's LOCAL_SDK_VERSION is lower than the support library's LOCAL_SDK_VERSION,
@@ -489,26 +461,31 @@
 
 # jack already has the libraries in its classpath and doesn't support jars
 legacy_proguard_flags := $(addprefix -libraryjars ,$(my_support_library_sdk_raise) $(full_shared_java_libs))
-common_proguard_flags :=  \
-                  -forceprocessing \
-                  -printmapping $(proguard_dictionary)
 
+legacy_proguard_flags += -printmapping $(proguard_dictionary)
+jack_proguard_flags := -printmapping $(jack_dictionary)
+
+common_proguard_flags := -forceprocessing
+
+common_proguard_flag_files :=
 ifeq ($(filter nosystem,$(LOCAL_PROGUARD_ENABLED)),)
-common_proguard_flags += -include $(BUILD_SYSTEM)/proguard.flags
+common_proguard_flag_files += $(BUILD_SYSTEM)/proguard.flags
 ifeq ($(LOCAL_EMMA_INSTRUMENT),true)
-ifdef LOCAL_JACK_ENABLED
-common_proguard_flags += -include $(BUILD_SYSTEM)/proguard.jacoco.flags
-else
-common_proguard_flags += -include $(BUILD_SYSTEM)/proguard.emma.flags
-endif # LOCAL_JACK_ENABLED
+common_proguard_flag_files += $(BUILD_SYSTEM)/proguard.jacoco.flags
 endif
 # If this is a test package, add proguard keep flags for tests.
 ifneq ($(LOCAL_INSTRUMENTATION_FOR)$(filter tests,$(LOCAL_MODULE_TAGS)),)
-common_proguard_flags += -include $(BUILD_SYSTEM)/proguard_tests.flags
+common_proguard_flag_files += $(BUILD_SYSTEM)/proguard_tests.flags
 ifeq ($(filter shrinktests,$(LOCAL_PROGUARD_ENABLED)),)
 common_proguard_flags += -dontshrink # don't shrink tests by default
 endif # shrinktests
 endif # test package
+ifneq ($(common_proguard_flag_files),)
+common_proguard_flags += $(addprefix -include , $(common_proguard_flag_files))
+# This is included from $(BUILD_SYSTEM)/proguard.flags
+common_proguard_flag_files += $(BUILD_SYSTEM)/proguard_basic_keeps.flags
+endif
+
 ifeq ($(filter obfuscation,$(LOCAL_PROGUARD_ENABLED)),)
 # By default no obfuscation
 common_proguard_flags += -dontobfuscate
@@ -534,10 +511,9 @@
     -applymapping $(link_instr_intermediates_dir.COMMON)/proguard_dictionary \
     -verbose \
     $(legacy_proguard_flags)
-# not supported with jack
-ifdef LOCAL_JACK_ENABLED
-    $(error $(LOCAL_MODULE): Build with jack of instrumentation when obfuscating is not yet supported)
-endif
+
+jack_proguard_flags += -applymapping $(link_instr_intermediates_dir.COMMON)/jack_dictionary
+full_jack_deps += $(link_instr_intermediates_dir.COMMON)/jack_dictionary
 
 # Sometimes (test + main app) uses different keep rules from the main app -
 # apply the main app's dictionary anyway.
@@ -560,42 +536,21 @@
 endif
 $(full_classes_proguard_jar): PRIVATE_EXTRA_INPUT_JAR := $(extra_input_jar)
 $(full_classes_proguard_jar): PRIVATE_PROGUARD_FLAGS := $(legacy_proguard_flags) $(common_proguard_flags) $(LOCAL_PROGUARD_FLAGS)
-$(full_classes_proguard_jar) : $(full_classes_jar) $(extra_input_jar) $(my_support_library_sdk_raise) $(proguard_flag_files) | $(ACP) $(PROGUARD)
+$(full_classes_proguard_jar) : $(full_classes_jar) $(extra_input_jar) $(my_support_library_sdk_raise) $(common_proguard_flag_files) $(proguard_flag_files) | $(PROGUARD)
 	$(call transform-jar-to-proguard)
 
 else  # LOCAL_PROGUARD_ENABLED not defined
-$(full_classes_proguard_jar) : $(full_classes_jar)
+$(full_classes_proguard_jar) : $(full_classes_jar) | $(ACP)
 	@echo Copying: $@
 	$(hide) $(ACP) -fp $< $@
 
 endif # LOCAL_PROGUARD_ENABLED defined
 
-ifndef LOCAL_JACK_ENABLED
-# Override PRIVATE_INTERMEDIATES_DIR so that install-dex-debug
-# will work even when intermediates != intermediates.COMMON.
-$(built_dex_intermediate): PRIVATE_INTERMEDIATES_DIR := $(intermediates.COMMON)
-$(built_dex_intermediate): PRIVATE_DX_FLAGS := $(LOCAL_DX_FLAGS)
-# If you instrument class files that have local variable debug information in
-# them emma does not correctly maintain the local variable table.
-# This will cause an error when you try to convert the class files for Android.
-# The workaround here is to build different dex file here based on emma switch
-# then later copy into classes.dex. When emma is on, dx is run with --no-locals
-# option to remove local variable information
-ifeq ($(LOCAL_EMMA_INSTRUMENT),true)
-$(built_dex_intermediate): PRIVATE_DX_FLAGS += --no-locals
-endif
-$(built_dex_intermediate): $(full_classes_proguard_jar) $(DX)
-	$(transform-classes.jar-to-dex)
-endif # LOCAL_JACK_ENABLED is disabled
-
 $(built_dex): $(built_dex_intermediate) | $(ACP)
 	@echo Copying: $@
 	$(hide) mkdir -p $(dir $@)
 	$(hide) rm -f $(dir $@)/classes*.dex
 	$(hide) $(ACP) -fp $(dir $<)/classes*.dex $(dir $@)
-ifneq ($(GENERATE_DEX_DEBUG),)
-	$(install-dex-debug)
-endif
 
 findbugs_xml := $(intermediates.COMMON)/findbugs.xml
 $(findbugs_xml) : PRIVATE_AUXCLASSPATH := $(addprefix -auxclasspath ,$(strip \
@@ -623,15 +578,18 @@
 
 endif  # full_classes_jar is defined
 
-ifdef LOCAL_JACK_ENABLED
 $(LOCAL_INTERMEDIATE_TARGETS): \
 	PRIVATE_JACK_INTERMEDIATES_DIR := $(intermediates.COMMON)/jack-rsc
 ifeq ($(LOCAL_JACK_ENABLED),incremental)
 $(LOCAL_INTERMEDIATE_TARGETS): \
 	PRIVATE_JACK_INCREMENTAL_DIR := $(intermediates.COMMON)/jack-incremental
+$(noshrob_classes_jack): PRIVATE_JACK_INCREMENTAL_DIR := $(intermediates.COMMON)/jack-noshrob-incremental
+$(jack_check_timestamp): PRIVATE_JACK_INCREMENTAL_DIR := $(intermediates.COMMON)/jack-check-incremental
 else
 $(LOCAL_INTERMEDIATE_TARGETS): \
 	PRIVATE_JACK_INCREMENTAL_DIR :=
+$(noshrob_classes_jack): PRIVATE_JACK_INCREMENTAL_DIR :=
+$(jack_check_timestamp): PRIVATE_JACK_INCREMENTAL_DIR :=
 endif
 
 ifdef full_classes_jar
@@ -645,7 +603,13 @@
     $(error $(LOCAL_MODULE): Build with jack when LOCAL_TEST_MODULE_TO_PROGUARD_WITH is defined is not yet implemented)
 endif
 
-$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_JACK_PROGUARD_FLAGS := $(common_proguard_flags) $(LOCAL_JACK_PROGUARD_FLAGS)
+# $(jack_dictionary) is just by-product of $(built_dex_intermediate).
+# The dummy command was added because, without it, make misses the fact the $(built_dex) also
+# change $(jack_dictionary).
+$(jack_dictionary): $(full_classes_jack)
+	$(hide) touch $@
+
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_JACK_PROGUARD_FLAGS := $(common_proguard_flags) $(jack_proguard_flags) $(LOCAL_JACK_PROGUARD_FLAGS)
 else  # LOCAL_PROGUARD_ENABLED not defined
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_JACK_PROGUARD_FLAGS :=
 endif # LOCAL_PROGUARD_ENABLED defined
@@ -653,10 +617,15 @@
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_JACK_FLAGS := $(GLOBAL_JAVAC_DEBUG_FLAGS) $(LOCAL_JACK_FLAGS)
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_JACK_VERSION := $(LOCAL_JACK_VERSION)
 
-jack_all_deps := $(java_sources) $(java_resource_sources) $(full_jack_lib_deps) \
-        $(jar_manifest_file) $(layers_file) $(RenderScript_file_stamp) $(proguard_flag_files) \
+jack_all_deps := $(java_sources) $(java_resource_sources) $(full_jack_deps) \
+        $(jar_manifest_file) $(layers_file) $(RenderScript_file_stamp) \
+        $(common_proguard_flag_files) $(proguard_flag_files) \
         $(proto_java_sources_file_stamp) $(LOCAL_ADDITIONAL_DEPENDENCIES) $(LOCAL_JARJAR_RULES) \
-        $(LOCAL_MODULE_MAKEFILE_DEP) $(JACK)
+        $(JACK_DEFAULT_ARGS) $(JACK)
+
+$(jack_check_timestamp): $(jack_all_deps)
+	@echo Checking build with Jack: $@
+	$(jack-check-java)
 
 ifeq ($(LOCAL_IS_STATIC_JAVA_LIBRARY),true)
 $(full_classes_jack): $(jack_all_deps) | setup-jack-server
@@ -673,9 +642,11 @@
 
 ifeq ($(LOCAL_EMMA_INSTRUMENT),true)
 $(built_dex_intermediate): PRIVATE_JACK_COVERAGE_OPTIONS := \
-    -D jack.coverage="true" \
+    -D jack.coverage=true \
     -D jack.coverage.metadata.file=$(intermediates.COMMON)/coverage.em \
-    -D jack.coverage.jacoco.package=$(JACOCO_PACKAGE_NAME)
+    -D jack.coverage.jacoco.package=$(JACOCO_PACKAGE_NAME) \
+    $(addprefix -D jack.coverage.jacoco.include=,$(LOCAL_JACK_COVERAGE_INCLUDE_FILTER)) \
+    $(addprefix -D jack.coverage.jacoco.exclude=,$(LOCAL_JACK_COVERAGE_EXCLUDE_FILTER))
 else
 $(built_dex_intermediate): PRIVATE_JACK_COVERAGE_OPTIONS :=
 endif
@@ -695,14 +666,8 @@
 endif #LOCAL_IS_STATIC_JAVA_LIBRARY
 
 $(noshrob_classes_jack): PRIVATE_JACK_INTERMEDIATES_DIR := $(intermediates.COMMON)/jack-noshrob-rsc
-ifeq ($(LOCAL_JACK_ENABLED),incremental)
-$(noshrob_classes_jack): PRIVATE_JACK_INCREMENTAL_DIR := $(intermediates.COMMON)/jack-noshrob-incremental
-else
-$(noshrob_classes_jack): PRIVATE_JACK_INCREMENTAL_DIR :=
-endif
 $(noshrob_classes_jack): PRIVATE_JACK_PROGUARD_FLAGS :=
 $(noshrob_classes_jack): $(jack_all_deps) | setup-jack-server
 	@echo Building with Jack: $@
 	$(java-to-jack)
 endif  # full_classes_jar is defined
-endif # LOCAL_JACK_ENABLED
diff --git a/core/java_common.mk b/core/java_common.mk
index 34c67dc..5720b88 100644
--- a/core/java_common.mk
+++ b/core/java_common.mk
@@ -3,8 +3,29 @@
 ###########################################################
 ## Java version
 ###########################################################
+# Use the LOCAL_JAVA_LANGUAGE_VERSION if it is set, otherwise
+# use one based on the LOCAL_SDK_VERSION. If it is < 24
+# pass "1.7" to the tools, if it is unset, >= 24 or "current"
+# pass "1.8".
+#
+# The LOCAL_SDK_VERSION behavior is to ensure that, by default,
+# code that is expected to run on older releases of Android
+# does not use any 1.8 language features that are not supported
+# on earlier runtimes (like default / static interface methods).
+# Modules can override this logic by specifying
+# LOCAL_JAVA_LANGUAGE_VERSION explicitly.
 ifeq (,$(LOCAL_JAVA_LANGUAGE_VERSION))
-  LOCAL_JAVA_LANGUAGE_VERSION := 1.7
+  private_sdk_versions_without_any_java_18_support := 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
+  ifneq (,$(filter $(LOCAL_SDK_VERSION), $(private_sdk_versions_without_any_java_18_support)))
+    LOCAL_JAVA_LANGUAGE_VERSION := 1.7
+  else
+    # This retains 1.7 for ART build bots only. http://b/27583810
+    ifeq (,$(LEGACY_USE_JAVA7))
+      LOCAL_JAVA_LANGUAGE_VERSION := 1.8
+    else
+      LOCAL_JAVA_LANGUAGE_VERSION := 1.7
+    endif
+  endif
 endif
 LOCAL_JAVACFLAGS += -source $(LOCAL_JAVA_LANGUAGE_VERSION) -target $(LOCAL_JAVA_LANGUAGE_VERSION)
 
@@ -42,6 +63,8 @@
 	$(call transform-proto-to-java)
 
 #TODO: protoc should output the dependencies introduced by imports.
+
+ALL_MODULES.$(my_register_name).PROTO_FILES := $(proto_sources_fullpath)
 endif # proto_sources
 
 #########################################
@@ -159,8 +182,20 @@
 endif # LOCAL_SDK_VERSION
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_BOOTCLASSPATH := -bootclasspath $(my_bootclasspath)
 
-full_shared_java_libs := $(call java-lib-files,$(LOCAL_JAVA_LIBRARIES),$(LOCAL_IS_HOST_MODULE))
-full_java_lib_deps := $(call java-lib-deps,$(LOCAL_JAVA_LIBRARIES),$(LOCAL_IS_HOST_MODULE))
+# In order to compile lambda code javac requires various invokedynamic-
+# related classes to be present. This change adds stubs needed for
+# javac to compile lambdas.
+my_additional_javac_libs :=
+ifndef TARGET_BUILD_APPS
+# TODO: support to build lamdbas using javac in unbundled build.
+# We may need to check in a prebuilt core-lambda-stubs to prebuilts/sdk.
+ifneq ($(LOCAL_NO_STANDARD_LIBRARIES),true)
+my_additional_javac_libs := core-lambda-stubs
+endif
+endif
+
+full_shared_java_libs := $(call java-lib-files,$(LOCAL_JAVA_LIBRARIES) $(my_additional_javac_libs),$(LOCAL_IS_HOST_MODULE))
+full_java_lib_deps := $(call java-lib-deps,$(LOCAL_JAVA_LIBRARIES) $(my_additional_javac_libs),$(LOCAL_IS_HOST_MODULE))
 full_java_lib_deps := $(addsuffix .toc, $(full_java_lib_deps))
 
 else # LOCAL_IS_HOST_MODULE
@@ -169,14 +204,13 @@
 ifeq ($(LOCAL_NO_STANDARD_LIBRARIES),true)
 my_bootclasspath := ""
 else
-my_bootclasspath := $(call java-lib-files,core-oj-hostdex,$(LOCAL_IS_HOST_MODULE)):$(call java-lib-files,core-libart-hostdex,$(LOCAL_IS_HOST_MODULE))
+my_bootclasspath := $(call normalize-path-list,$(call host-dex-java-lib-files,core-oj-hostdex core-libart-hostdex))
 endif
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_BOOTCLASSPATH := -bootclasspath $(my_bootclasspath)
 
-full_shared_java_libs := $(call java-lib-files,$(LOCAL_JAVA_LIBRARIES),$(LOCAL_IS_HOST_MODULE))
-full_java_lib_deps := $(call java-lib-deps,$(LOCAL_JAVA_LIBRARIES),$(LOCAL_IS_HOST_MODULE)) \
-    $(full_shared_java_libs)
-else
+full_shared_java_libs := $(call host-dex-java-lib-files,$(LOCAL_JAVA_LIBRARIES))
+full_java_lib_deps := $(full_shared_java_libs)
+else # !USE_CORE_LIB_BOOTCLASSPATH
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_BOOTCLASSPATH :=
 
 full_shared_java_libs := $(addprefix $(HOST_OUT_JAVA_LIBRARIES)/,\
@@ -260,6 +294,9 @@
 ifdef aidl_sources
 ALL_MODULES.$(my_register_name).AIDL_FILES := $(aidl_sources)
 endif
+ifdef renderscript_sources
+ALL_MODULES.$(my_register_name).RS_FILES := $(renderscript_sources_fullpath)
+endif
 endif  # !LOCAL_IS_HOST_MODULE
 
 $(LOCAL_INTERMEDIATE_TARGETS) : PRIVATE_ALL_JAVA_LIBRARIES := $(full_java_libs)
@@ -270,7 +307,6 @@
 ###########################################################
 # JACK
 ###########################################################
-ifdef LOCAL_JACK_ENABLED
 ifdef need_compile_java
 
 LOCAL_JACK_FLAGS += -D jack.java.source.version=$(LOCAL_JAVA_LANGUAGE_VERSION)
@@ -302,10 +338,10 @@
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_BOOTCLASSPATH_JAVA_LIBRARIES := $(my_bootclasspath)
 
 full_shared_jack_libs := $(call jack-lib-files,$(LOCAL_JAVA_LIBRARIES),$(LOCAL_IS_HOST_MODULE))
-full_jack_lib_deps := $(call jack-lib-deps,$(LOCAL_JAVA_LIBRARIES),$(LOCAL_IS_HOST_MODULE))
+full_jack_deps := $(call jack-lib-deps,$(LOCAL_JAVA_LIBRARIES),$(LOCAL_IS_HOST_MODULE))
 # Turn off .toc optimization for apps build as we cannot build dexdump.
 ifeq (,$(TARGET_BUILD_APPS))
-full_jack_lib_deps := $(patsubst %.jack, %.dex.toc, $(full_jack_lib_deps))
+full_jack_deps := $(patsubst %.jack, %.dex.toc, $(full_jack_deps))
 endif
 
 else # LOCAL_IS_HOST_MODULE
@@ -317,16 +353,18 @@
 my_bootclasspath := $(call jack-lib-files,core-oj-hostdex,$(LOCAL_IS_HOST_MODULE)):$(call jack-lib-files,core-libart-hostdex,$(LOCAL_IS_HOST_MODULE))
 endif
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_BOOTCLASSPATH_JAVA_LIBRARIES := $(my_bootclasspath)
+# Compiling against the final jack library. If we want to add support for obfuscated library
+# we'll need to change that to compile against the not obfuscated jack library.
 full_shared_jack_libs := $(call jack-lib-files,$(LOCAL_JAVA_LIBRARIES),$(LOCAL_IS_HOST_MODULE))
-full_jack_lib_deps := $(call jack-lib-deps,$(LOCAL_JAVA_LIBRARIES),$(LOCAL_IS_HOST_MODULE))
+full_jack_deps := $(call jack-lib-deps,$(LOCAL_JAVA_LIBRARIES),$(LOCAL_IS_HOST_MODULE))
 else
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_BOOTCLASSPATH_JAVA_LIBRARIES :=
 full_shared_jack_libs := $(call jack-lib-deps,$(LOCAL_JAVA_LIBRARIES),$(LOCAL_IS_HOST_MODULE))
-full_jack_lib_deps := $(full_shared_jack_libs)
+full_jack_deps := $(full_shared_jack_libs)
 endif # USE_CORE_LIB_BOOTCLASSPATH
 endif # !LOCAL_IS_HOST_MODULE
 full_jack_libs := $(full_shared_jack_libs) $(full_static_jack_libs) $(LOCAL_JACK_CLASSPATH)
-full_jack_lib_deps += $(full_static_jack_libs) $(LOCAL_JACK_CLASSPATH)
+full_jack_deps += $(full_static_jack_libs) $(LOCAL_JACK_CLASSPATH)
 
 ifndef LOCAL_IS_HOST_MODULE
 # This is set by packages that are linking to other packages that export
@@ -340,7 +378,7 @@
   # link against the jar with full original names (before proguard processing).
   full_shared_jack_libs += $(link_apk_jack_libraries)
   full_jack_libs += $(link_apk_jack_libraries)
-  full_jack_lib_deps += $(link_apk_jack_libraries)
+  full_jack_deps += $(link_apk_jack_libraries)
 endif
 
 # This is set by packages that contain instrumentation, allowing them to
@@ -350,7 +388,7 @@
    # link against the jar with full original names (before proguard processing).
    link_instr_classes_jack := $(link_instr_intermediates_dir.COMMON)/classes.noshrob.jack
    full_jack_libs += $(link_instr_classes_jack)
-   full_jack_lib_deps += $(link_instr_classes_jack)
+   full_jack_deps += $(link_instr_classes_jack)
 endif  # LOCAL_INSTRUMENTATION_FOR
 endif  # !LOCAL_IS_HOST_MODULE
 
@@ -359,4 +397,3 @@
 $(LOCAL_INTERMEDIATE_TARGETS) : PRIVATE_JARJAR_RULES := $(LOCAL_JARJAR_RULES)
 
 endif  # need_compile_java
-endif # LOCAL_JACK_ENABLED
diff --git a/core/java_library.mk b/core/java_library.mk
index 81a4a6a..283e9ad 100644
--- a/core/java_library.mk
+++ b/core/java_library.mk
@@ -28,11 +28,9 @@
 include $(BUILD_SYSTEM)/configure_local_jack.mk
 #################################
 
-ifdef LOCAL_JACK_ENABLED
 ifdef LOCAL_IS_STATIC_JAVA_LIBRARY
 LOCAL_BUILT_MODULE_STEM := classes.jack
 endif
-endif
 
 intermediates.COMMON := $(call local-intermediates-dir,COMMON)
 
@@ -47,12 +45,8 @@
 ifeq (true,$(EMMA_INSTRUMENT))
 ifeq (true,$(LOCAL_EMMA_INSTRUMENT))
 ifeq (true,$(EMMA_INSTRUMENT_STATIC))
-ifdef LOCAL_JACK_ENABLED
 # Jack supports coverage with Jacoco
 LOCAL_STATIC_JAVA_LIBRARIES += jacocoagent
-else
-LOCAL_STATIC_JAVA_LIBRARIES += emma
-endif # LOCAL_JACK_ENABLED
 endif # LOCAL_EMMA_INSTRUMENT
 endif # EMMA_INSTRUMENT_STATIC
 else
@@ -66,44 +60,28 @@
 ifeq ($(LOCAL_IS_STATIC_JAVA_LIBRARY),true)
 # No dex; all we want are the .class files with resources.
 $(common_javalib.jar) : $(java_resource_sources)
-ifdef LOCAL_PROGUARD_ENABLED
-$(common_javalib.jar) : $(full_classes_proguard_jar)
-else
 $(common_javalib.jar) : $(full_classes_jar)
-endif
 	@echo "target Static Jar: $(PRIVATE_MODULE) ($@)"
 	$(copy-file-to-target)
 
-ifdef LOCAL_JACK_ENABLED
 $(LOCAL_BUILT_MODULE) : $(full_classes_jack)
-else
-$(LOCAL_BUILT_MODULE) : $(common_javalib.jar)
-endif
 	$(copy-file-to-target)
 
 else # !LOCAL_IS_STATIC_JAVA_LIBRARY
 
 $(common_javalib.jar): PRIVATE_DEX_FILE := $(built_dex)
-$(common_javalib.jar): PRIVATE_SOURCE_ARCHIVE := $(full_classes_jarjar_jar)
-$(common_javalib.jar): PRIVATE_DONT_DELETE_JAR_DIRS := $(LOCAL_DONT_DELETE_JAR_DIRS)
 $(common_javalib.jar) : $(built_dex) $(java_resource_sources) | $(ZIPTIME)
 	@echo "target Jar: $(PRIVATE_MODULE) ($@)"
-ifdef LOCAL_JACK_ENABLED
 	$(create-empty-package)
-else
-	$(call initialize-package-file,$(PRIVATE_SOURCE_ARCHIVE),$@)
-endif
 	$(add-dex-to-package)
-ifdef LOCAL_JACK_ENABLED
 	$(add-carried-jack-resources)
-endif
 	$(remove-timestamps-from-package)
 
 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
-$(LOCAL_BUILT_MODULE) : $(dexpreopted_boot_jar) | $(ACP)
+$(LOCAL_BUILT_MODULE) : $(dexpreopted_boot_jar)
 	$(call copy-file-to-target)
 
 # For libart boot jars, we don't have .odex files.
@@ -114,7 +92,7 @@
 	@echo "Dexpreopt Jar: $(PRIVATE_MODULE) ($@)"
 	$(call dexpreopt-one-file,$<,$@)
 
-$(LOCAL_BUILT_MODULE) : $(common_javalib.jar) | $(ACP)
+$(LOCAL_BUILT_MODULE) : $(common_javalib.jar)
 	$(call copy-file-to-target)
 ifneq (nostripping,$(LOCAL_DEX_PREOPT))
 	$(call dexpreopt-remove-classes.dex,$@)
@@ -123,7 +101,7 @@
 endif # ! boot jar
 
 else # LOCAL_DEX_PREOPT
-$(LOCAL_BUILT_MODULE) : $(common_javalib.jar) | $(ACP)
+$(LOCAL_BUILT_MODULE) : $(common_javalib.jar)
 	$(call copy-file-to-target)
 
 endif # LOCAL_DEX_PREOPT
diff --git a/core/legacy_prebuilts.mk b/core/legacy_prebuilts.mk
deleted file mode 100644
index f4633d0..0000000
--- a/core/legacy_prebuilts.mk
+++ /dev/null
@@ -1,32 +0,0 @@
-#
-# Copyright (C) 2010 The Android Open Source Project
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-# This is the list of modules grandfathered to use ALL_PREBUILT
-
-# DO NOT ADD ANY NEW MODULE TO THIS FILE
-#
-# ALL_PREBUILT modules are hard to control and audit and we don't want
-# to add any new such module in the system
-
-GRANDFATHERED_ALL_PREBUILT := \
-	bmgr \
-	ime \
-	input \
-	monkey \
-	pm \
-	RFFspeed_501.bmd \
-	RFFstd_501.bmd \
-	svc
diff --git a/core/main.mk b/core/main.mk
index ac71867..ad1b663 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -77,6 +77,7 @@
     stnod systemtarball-nodeps \
     userdataimage-nodeps userdatatarball-nodeps \
     cacheimage-nodeps \
+    bptimage-nodeps \
     vendorimage-nodeps \
     ramdisk-nodeps \
     bootimage-nodeps \
@@ -96,27 +97,15 @@
 # and host information.
 include $(BUILD_SYSTEM)/config.mk
 
-relaunch_with_ninja :=
-ifneq ($(USE_NINJA),false)
-ifndef BUILDING_WITH_NINJA
-relaunch_with_ninja := true
-endif
+ifndef KATI
+ifdef USE_NINJA
+$(warning USE_NINJA is ignored. Ninja is always used.)
 endif
 
-ifeq ($(relaunch_with_ninja),true)
 # Mark this is a ninja build.
 $(shell mkdir -p $(OUT_DIR) && touch $(OUT_DIR)/ninja_build)
 include build/core/ninja.mk
-else # !relaunch_with_ninja
-ifndef BUILDING_WITH_NINJA
-# Remove ninja build mark if it exists.
-$(shell rm -f $(OUT_DIR)/ninja_build)
-endif
-
-# With these files findleaves.py won't be unnecessarily slower even if
-# there is a user creates a copy of $(OUT_DIR).
-$(shell echo '# This file prevents findleaves.py from traversing this directory further' > $(OUT_DIR)/Android.mk)
-$(shell echo '# This file prevents findleaves.py from traversing this directory further' > $(OUT_DIR)/CleanSpec.mk)
+else # KATI
 
 # Write the build number to a file so it can be read back in
 # without changing the command line every time.  Avoids rebuilds
@@ -243,6 +232,12 @@
 endif # java version is not Sun Oracle JDK
 endif # if requires_openjdk
 
+KNOWN_INCOMPATIBLE_JAVAC_VERSIONS := google
+incompat_javac := $(foreach v,$(KNOWN_INCOMPATIBLE_JAVAC_VERSIONS),$(findstring $(v),$(javac_version_str)))
+ifneq ($(incompat_javac),)
+javac_version :=
+endif
+
 # Check for the correct version of javac
 ifeq ($(strip $(javac_version)),)
 $(info ************************************************************)
@@ -250,7 +245,12 @@
 $(info of javac.)
 $(info $(space))
 $(info Your version is: $(javac_version_str).)
+ifneq ($(incompat_javac),)
+$(info This '$(incompat_javac)' version is not supported for Android platform builds.)
+$(info Use a publicly available JDK and make sure you have run envsetup.sh / lunch.)
+else
 $(info The required version is: $(required_javac_version))
+endif
 $(info $(space))
 $(info Please follow the machine setup instructions at)
 $(info $(space)$(space)$(space)$(space)https://source.android.com/source/download.html)
@@ -551,6 +551,11 @@
 
 $(foreach mk, $(subdir_makefiles),$(info including $(mk) ...)$(eval include $(mk)))
 
+ifdef PDK_FUSION_PLATFORM_ZIP
+# Bring in the PDK platform.zip modules.
+include $(BUILD_SYSTEM)/pdk_fusion_modules.mk
+endif # PDK_FUSION_PLATFORM_ZIP
+
 endif # dont_bother
 
 endif # ONE_SHOT_MAKEFILE
@@ -562,22 +567,6 @@
   $(call assert-product-vars, __STASHED)
 endif
 
-include $(BUILD_SYSTEM)/legacy_prebuilts.mk
-ifneq ($(filter-out $(GRANDFATHERED_ALL_PREBUILT),$(strip $(notdir $(ALL_PREBUILT)))),)
-  $(warning *** Some files have been added to ALL_PREBUILT.)
-  $(warning *)
-  $(warning * ALL_PREBUILT is a deprecated mechanism that)
-  $(warning * should not be used for new files.)
-  $(warning * As an alternative, use PRODUCT_COPY_FILES in)
-  $(warning * the appropriate product definition.)
-  $(warning * build/target/product/core.mk is the product)
-  $(warning * definition used in all products.)
-  $(warning *)
-  $(foreach bad_prebuilt,$(filter-out $(GRANDFATHERED_ALL_PREBUILT),$(strip $(notdir $(ALL_PREBUILT)))),$(warning * unexpected $(bad_prebuilt) in ALL_PREBUILT))
-  $(warning *)
-  $(error ALL_PREBUILT contains unexpected files)
-endif
-
 # -------------------------------------------------------------------
 # All module makefiles have been included at this point.
 # -------------------------------------------------------------------
@@ -605,19 +594,33 @@
 #
 # Resolve the required module name to 32-bit or 64-bit variant.
 # Get a list of corresponding 32-bit module names, if one exists.
+ifneq ($(TARGET_TRANSLATE_2ND_ARCH),true)
 define get-32-bit-modules
-$(strip $(foreach m,$(1),\
+$(sort $(foreach m,$(1),\
   $(if $(ALL_MODULES.$(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX).CLASS),\
-    $(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX))))
+    $(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX))\
+  $(if $(ALL_MODULES.$(m)$(HOST_2ND_ARCH_MODULE_SUFFIX).CLASS),\
+    $(m)$(HOST_2ND_ARCH_MODULE_SUFFIX))\
+    ))
 endef
 # Get a list of corresponding 32-bit module names, if one exists;
 # otherwise return the original module name
 define get-32-bit-modules-if-we-can
-$(strip $(foreach m,$(1),\
-  $(if $(ALL_MODULES.$(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX).CLASS),\
-    $(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX),
-    $(m))))
+$(sort $(foreach m,$(1),\
+  $(if $(ALL_MODULES.$(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX).CLASS)$(ALL_MODULES.$(m)$(HOST_2ND_ARCH_MODULE_SUFFIX).CLASS),\
+    $(if $(ALL_MODULES.$(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX).CLASS),$(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX)) \
+    $(if $(ALL_MODULES.$(m)$(HOST_2ND_ARCH_MODULE_SUFFIX).CLASS),$(m)$(HOST_2ND_ARCH_MODULE_SUFFIX)),\
+  $(m))))
 endef
+else  # TARGET_TRANSLATE_2ND_ARCH
+# For binary translation config, by default only install the first arch.
+define get-32-bit-modules
+endef
+
+define get-32-bit-modules-if-we-can
+$(strip $(1))
+endef
+endif  # TARGET_TRANSLATE_2ND_ARCH
 
 # If a module is for a cross host os, the required modules must be for
 # that OS too.
@@ -794,7 +797,7 @@
 ifdef overridden_packages
 #  old_modules_to_install := $(modules_to_install)
   modules_to_install := \
-      $(filter-out $(foreach p,$(overridden_packages),$(p) %/$(p).apk), \
+      $(filter-out $(foreach p,$(overridden_packages),$(p) %/$(p).apk %/$(p).odex), \
           $(modules_to_install))
 endif
 #$(error filtered out
@@ -868,9 +871,6 @@
 # This is used to to get the ordering right, you can also use these,
 # but they're considered undocumented, so don't complain if their
 # behavior changes.
-.PHONY: prebuilt
-prebuilt: $(ALL_PREBUILT)
-
 # An internal target that depends on all copied headers
 # (see copy_headers.make).  Other targets that need the
 # headers to be copied first can depend on this target.
@@ -881,9 +881,8 @@
 
 # All the droid stuff, in directories
 .PHONY: files
-files: prebuilt \
-        $(modules_to_install) \
-        $(INSTALLED_ANDROID_INFO_TXT_TARGET)
+files: $(modules_to_install) \
+       $(INSTALLED_ANDROID_INFO_TXT_TARGET)
 
 # -------------------------------------------------------------------
 
@@ -918,6 +917,9 @@
 .PHONY: cacheimage
 cacheimage: $(INSTALLED_CACHEIMAGE_TARGET)
 
+.PHONY: bptimage
+bptimage: $(INSTALLED_BPTIMAGE_TARGET)
+
 .PHONY: vendorimage
 vendorimage: $(INSTALLED_VENDORIMAGE_TARGET)
 
@@ -947,6 +949,7 @@
 	$(INSTALLED_RECOVERYIMAGE_TARGET) \
 	$(INSTALLED_USERDATAIMAGE_TARGET) \
 	$(INSTALLED_CACHEIMAGE_TARGET) \
+	$(INSTALLED_BPTIMAGE_TARGET) \
 	$(INSTALLED_VENDORIMAGE_TARGET) \
 	$(INSTALLED_FILES_FILE) \
 	$(INSTALLED_FILES_FILE_VENDOR)
@@ -1068,6 +1071,9 @@
 target-native-tests : native-target-tests
 tests : host-tests target-tests
 
+# Phony target to run all java compilations that use javac instead of jack.
+.PHONY: javac-check
+
 # To catch more build breakage, check build tests modules in eng and userdebug builds.
 ifneq ($(ANDROID_NO_TEST_CHECK),true)
 ifneq ($(TARGET_BUILD_PDK),true)
@@ -1086,7 +1092,7 @@
 $(foreach module,$(sample_MODULES),$(eval $(call \
         copy-one-file,$(module),$(sample_APKS_DEST_PATH)/$(notdir $(module)))))
 sample_ADDITIONAL_INSTALLED := \
-        $(filter-out $(modules_to_install) $(modules_to_check) $(ALL_PREBUILT),$(sample_MODULES))
+        $(filter-out $(modules_to_install) $(modules_to_check),$(sample_MODULES))
 samplecode: $(sample_APKS_COLLECTION)
 	@echo "Collect sample code apks: $^"
 	# remove apks that are not intended to be installed.
@@ -1120,4 +1126,4 @@
 .PHONY: nothing
 nothing:
 	@echo Successfully read the makefiles.
-endif # !relaunch_with_ninja
+endif # KATI
diff --git a/core/native_benchmark.mk b/core/native_benchmark.mk
index e5ca451..fe378b8 100644
--- a/core/native_benchmark.mk
+++ b/core/native_benchmark.mk
@@ -3,7 +3,7 @@
 ## Common flags for native benchmarks are added.
 ###########################################
 
-LOCAL_STATIC_LIBRARIES += libbenchmark libbase
+LOCAL_STATIC_LIBRARIES += libgoogle-benchmark
 
 ifndef LOCAL_MODULE_PATH
 LOCAL_MODULE_PATH := $(TARGET_OUT_DATA_NATIVE_TESTS)/$(LOCAL_MODULE)
diff --git a/core/ninja.mk b/core/ninja.mk
index 2878514..f5d9c89 100644
--- a/core/ninja.mk
+++ b/core/ninja.mk
@@ -1,15 +1,6 @@
 NINJA ?= prebuilts/ninja/$(HOST_PREBUILT_TAG)/ninja
 
-ifeq ($(USE_SOONG),true)
-USE_SOONG_FOR_KATI := true
-endif
-
-ifeq ($(USE_SOONG_FOR_KATI),true)
 include $(BUILD_SYSTEM)/soong.mk
-else
-KATI ?= $(HOST_OUT_EXECUTABLES)/ckati
-MAKEPARALLEL ?= $(HOST_OUT_EXECUTABLES)/makeparallel
-endif
 
 KATI_OUTPUT_PATTERNS := $(OUT_DIR)/build%.ninja $(OUT_DIR)/ninja%.sh
 
@@ -27,6 +18,7 @@
 	ECLIPSE-% \
 	PRODUCT-% \
 	boottarball-nodeps \
+	brillo_tests \
 	btnod \
 	build-art% \
 	build_kernel-nodeps \
@@ -68,7 +60,7 @@
 -include vendor/google/build/ninja_config.mk
 
 # Any Android goals that need to be built.
-ANDROID_GOALS := $(filter-out $(KATI_OUTPUT_PATTERNS) $(KATI) $(MAKEPARALLEL),\
+ANDROID_GOALS := $(filter-out $(KATI_OUTPUT_PATTERNS) $(CKATI) $(MAKEPARALLEL),\
     $(sort $(ORIGINAL_MAKECMDGOALS) $(MAKECMDGOALS)))
 # Goals we need to pass to Ninja.
 NINJA_GOALS := $(filter-out $(NINJA_EXCLUDE_GOALS), $(ANDROID_GOALS))
@@ -116,6 +108,10 @@
 NINJA_ARGS += "-v"
 endif
 
+# Make multiple rules to generate the same target an error instead of
+# proceeding with undefined behavior.
+NINJA_ARGS += -w dupbuild=err
+
 ifdef USE_GOMA
 KATI_MAKEPARALLEL := $(MAKEPARALLEL)
 # Ninja runs remote jobs (i.e., commands which contain gomacc) with
@@ -130,7 +126,7 @@
 ifeq ($(USE_SOONG),true)
 COMBINED_BUILD_NINJA := $(OUT_DIR)/combined$(KATI_NINJA_SUFFIX).ninja
 
-$(COMBINED_BUILD_NINJA): $(KATI_BUILD_NINJA) $(SOONG_ANDROID_MK)
+$(COMBINED_BUILD_NINJA): $(KATI_BUILD_NINJA)
 	$(hide) echo "builddir = $(OUT_DIR)" > $(COMBINED_BUILD_NINJA)
 	$(hide) echo "subninja $(SOONG_BUILD_NINJA)" >> $(COMBINED_BUILD_NINJA)
 	$(hide) echo "subninja $(KATI_BUILD_NINJA)" >> $(COMBINED_BUILD_NINJA)
@@ -144,39 +140,22 @@
 .PHONY: ninja_wrapper
 ninja_wrapper: $(COMBINED_BUILD_NINJA) $(MAKEPARALLEL)
 	@echo Starting build with ninja
-	+$(hide) export NINJA_STATUS="$(NINJA_STATUS)" && source $(KATI_ENV_SH) && $(NINJA_MAKEPARALLEL) $(NINJA) $(NINJA_GOALS) -C $(TOP) -f $(COMBINED_BUILD_NINJA) $(NINJA_ARGS)
+	+$(hide) export NINJA_STATUS="$(NINJA_STATUS)" && source $(KATI_ENV_SH) && $(NINJA_MAKEPARALLEL) $(NINJA) -d keepdepfile $(NINJA_GOALS) -C $(TOP) -f $(COMBINED_BUILD_NINJA) $(NINJA_ARGS)
+
+# Dummy Android.mk and CleanSpec.mk files so that kati won't recurse into the
+# out directory
+DUMMY_OUT_MKS := $(OUT_DIR)/Android.mk $(OUT_DIR)/CleanSpec.mk
+$(DUMMY_OUT_MKS):
+	@mkdir -p $(dir $@)
+	$(hide) echo '# This file prevents findleaves.py from traversing this directory further' >$@
 
 KATI_FIND_EMULATOR := --use_find_emulator
 ifeq ($(KATI_EMULATE_FIND),false)
   KATI_FIND_EMULATOR :=
 endif
-$(KATI_BUILD_NINJA): $(KATI) $(MAKEPARALLEL) $(SOONG_ANDROID_MK) FORCE
+$(KATI_BUILD_NINJA): $(CKATI) $(MAKEPARALLEL) $(DUMMY_OUT_MKS) run_soong FORCE
 	@echo Running kati to generate build$(KATI_NINJA_SUFFIX).ninja...
-	+$(hide) $(KATI_MAKEPARALLEL) $(KATI) --ninja --ninja_dir=$(OUT_DIR) --ninja_suffix=$(KATI_NINJA_SUFFIX) --regen --ignore_dirty=$(OUT_DIR)/% --no_ignore_dirty=$(SOONG_ANDROID_MK) --ignore_optional_include=$(OUT_DIR)/%.P --detect_android_echo $(KATI_FIND_EMULATOR) -f build/core/main.mk $(KATI_GOALS) --gen_all_targets BUILDING_WITH_NINJA=true SOONG_ANDROID_MK=$(SOONG_ANDROID_MK)
-
-ifneq ($(USE_SOONG_FOR_KATI),true)
-KATI_CXX := $(CLANG_CXX) $(CLANG_HOST_GLOBAL_CFLAGS) $(CLANG_HOST_GLOBAL_CPPFLAGS)
-KATI_LD := $(CLANG_CXX) $(CLANG_HOST_GLOBAL_LDFLAGS)
-# Build static ckati. Unfortunately Mac OS X doesn't officially support static exectuables.
-ifeq ($(BUILD_OS),linux)
-KATI_LD += -static
-endif
-
-KATI_INTERMEDIATES_PATH := $(HOST_OUT_INTERMEDIATES)/EXECUTABLES/ckati_intermediates
-KATI_BIN_PATH := $(HOST_OUT_EXECUTABLES)
-include build/kati/Makefile.ckati
-
-MAKEPARALLEL_CXX := $(CLANG_CXX) $(CLANG_HOST_GLOBAL_CFLAGS) $(CLANG_HOST_GLOBAL_CPPFLAGS)
-MAKEPARALLEL_LD := $(CLANG_CXX) $(CLANG_HOST_GLOBAL_LDFLAGS)
-# Build static makeparallel. Unfortunately Mac OS X doesn't officially support static exectuables.
-ifeq ($(BUILD_OS),linux)
-MAKEPARALLEL_LD += -static
-endif
-
-MAKEPARALLEL_INTERMEDIATES_PATH := $(HOST_OUT_INTERMEDIATES)/EXECUTABLES/makeparallel_intermediates
-MAKEPARALLEL_BIN_PATH := $(HOST_OUT_EXECUTABLES)
-include build/tools/makeparallel/Makefile
-endif
+	+$(hide) $(KATI_MAKEPARALLEL) $(CKATI) --ninja --ninja_dir=$(OUT_DIR) --ninja_suffix=$(KATI_NINJA_SUFFIX) --regen --ignore_dirty=$(OUT_DIR)/% --no_ignore_dirty=$(SOONG_ANDROID_MK) --ignore_optional_include=$(OUT_DIR)/%.P --detect_android_echo $(KATI_FIND_EMULATOR) -f build/core/main.mk $(KATI_GOALS) --gen_all_targets BUILDING_WITH_NINJA=true SOONG_ANDROID_MK=$(SOONG_ANDROID_MK)
 
 .PHONY: FORCE
 FORCE:
diff --git a/core/package.mk b/core/package.mk
index 78b65db..8c2c435 100644
--- a/core/package.mk
+++ b/core/package.mk
@@ -2,6 +2,10 @@
 # TARGET_ARCH and TARGET_2ND_ARCH.
 # To build it for TARGET_2ND_ARCH in a 64bit product, use "LOCAL_MULTILIB := 32".
 
+ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+LOCAL_MULTILIB := first
+endif
+
 my_prefix := TARGET_
 include $(BUILD_SYSTEM)/multilib.mk
 
diff --git a/core/package_internal.mk b/core/package_internal.mk
index 097d801..6966625 100644
--- a/core/package_internal.mk
+++ b/core/package_internal.mk
@@ -166,12 +166,10 @@
 endif # !custom
 LOCAL_PROGUARD_FLAGS := $(addprefix -include ,$(proguard_options_file)) $(LOCAL_PROGUARD_FLAGS)
 
-ifdef LOCAL_JACK_ENABLED
 ifndef LOCAL_JACK_PROGUARD_FLAGS
     LOCAL_JACK_PROGUARD_FLAGS := $(LOCAL_PROGUARD_FLAGS)
 endif
 LOCAL_JACK_PROGUARD_FLAGS := $(addprefix -include ,$(proguard_options_file)) $(LOCAL_JACK_PROGUARD_FLAGS)
-endif # LOCAL_JACK_ENABLED
 
 ifeq (true,$(EMMA_INSTRUMENT))
 ifndef LOCAL_EMMA_INSTRUMENT
@@ -184,33 +182,35 @@
 LOCAL_EMMA_INSTRUMENT := false
 endif # EMMA_INSTRUMENT is true
 
+ifneq ($(LOCAL_SRC_FILES)$(LOCAL_STATIC_JAVA_LIBRARIES)$(LOCAL_SOURCE_FILES_ALL_GENERATED),)
+# Only add jacocoagent if the package contains some java code
 ifeq (true,$(LOCAL_EMMA_INSTRUMENT))
 ifeq (true,$(EMMA_INSTRUMENT_STATIC))
-ifdef LOCAL_JACK_ENABLED
 # Jack supports coverage with Jacoco
 LOCAL_STATIC_JAVA_LIBRARIES += jacocoagent
-else
-LOCAL_STATIC_JAVA_LIBRARIES += emma
-endif # LOCAL_JACK_ENABLED
-else
+else  # ! EMMA_INSTRUMENT_STATIC
 ifdef LOCAL_SDK_VERSION
 ifdef TARGET_BUILD_APPS
-# In unbundled build merge the emma library into the apk.
-ifdef LOCAL_JACK_ENABLED
+# In unbundled build, merge the coverage library into the apk.
 # Jack supports coverage with Jacoco
 LOCAL_STATIC_JAVA_LIBRARIES += jacocoagent
-else
-LOCAL_STATIC_JAVA_LIBRARIES += emma
-endif # LOCAL_JACK_ENABLED
-else
-# If build against the SDK in full build, core.jar is not used,
-# we have to use prebiult emma.jar to make Proguard happy;
-# Otherwise emma classes are included in core.jar.
-LOCAL_PROGUARD_FLAGS += -libraryjars $(EMMA_JAR)
-endif # full build
+# Exclude jacoco classes from proguard
+LOCAL_PROGUARD_FLAGS += -include $(BUILD_SYSTEM)/proguard.jacoco.flags
+LOCAL_JACK_PROGUARD_FLAGS += -include $(BUILD_SYSTEM)/proguard.jacoco.flags
+else # ! TARGET_BUILD_APPS
+# If build against the SDK in full build, core.jar is not used
+# so coverage classes are not present.
+# Jack needs jacoco on the classpath but we do not want it to be in
+# the final apk. While it is a static library, we add it to the
+# LOCAL_JAVA_LIBRARIES which are only present on the classpath.
+# Note: we have nothing to do for proguard since jacoco will be
+# on the classpath only, thus not modified during the compilation.
+LOCAL_JAVA_LIBRARIES += jacocoagent
+endif # TARGET_BUILD_APPS
 endif # LOCAL_SDK_VERSION
-endif # EMMA_INSTRUMENT_STATIC
+endif # ! EMMA_INSTRUMENT_STATIC
 endif # LOCAL_EMMA_INSTRUMENT
+endif # Contains java code
 
 rs_compatibility_jni_libs :=
 
@@ -291,29 +291,13 @@
 	$(add-assets-to-package)
 endif
 
+# Make sure to generate R.java before compiling.
 # Other modules should depend on the BUILT module if
 # they want to use this module's R.java file.
-$(LOCAL_BUILT_MODULE): $(R_file_stamp)
-
-ifdef LOCAL_JACK_ENABLED
-ifneq ($(built_dex_intermediate),)
-$(built_dex_intermediate): $(R_file_stamp)
-endif
-ifneq ($(noshrob_classes_jack),)
-$(noshrob_classes_jack): $(R_file_stamp)
-endif
-ifneq ($(full_classes_jack),)
-$(full_classes_jack): $(R_file_stamp)
-endif
-endif # LOCAL_JACK_ENABLED
-
-ifneq ($(full_classes_jar),)
-# If full_classes_jar is non-empty, we're building sources.
-# If we're building sources, the initial javac step (which
-# produces full_classes_compiled_jar) needs to ensure the
-# R.java and Manifest.java files have been generated first.
-$(full_classes_compiled_jar): $(R_file_stamp)
-endif
+$(LOCAL_BUILT_MODULE) \
+$(full_classes_compiled_jar) \
+$(built_dex_intermediate) $(noshrob_classes_jack) $(full_classes_jack) $(jack_check_timestamp) \
+  :  $(R_file_stamp)
 
 endif  # need_compile_res
 
@@ -356,12 +340,9 @@
 
 ifneq ($(full_classes_jar),)
 $(LOCAL_BUILT_MODULE): PRIVATE_DEX_FILE := $(built_dex)
-# Use the jarjar processed arhive as the initial package file.
-$(LOCAL_BUILT_MODULE): PRIVATE_SOURCE_ARCHIVE := $(full_classes_jarjar_jar)
 $(LOCAL_BUILT_MODULE): $(built_dex)
 else
 $(LOCAL_BUILT_MODULE): PRIVATE_DEX_FILE :=
-$(LOCAL_BUILT_MODULE): PRIVATE_SOURCE_ARCHIVE :=
 endif # full_classes_jar
 
 include $(BUILD_SYSTEM)/install_jni_libs.mk
@@ -420,16 +401,9 @@
     $(LOCAL_BUILT_MODULE): PRIVATE_PRODUCT_AAPT_PREF_CONFIG := $(PRODUCT_AAPT_PREF_CONFIG)
 endif
 endif
-$(LOCAL_BUILT_MODULE): PRIVATE_DONT_DELETE_JAR_DIRS := $(LOCAL_DONT_DELETE_JAR_DIRS)
 $(LOCAL_BUILT_MODULE): $(all_res_assets) $(jni_shared_libraries) $(full_android_manifest)
 	@echo "target Package: $(PRIVATE_MODULE) ($@)"
-ifdef LOCAL_JACK_ENABLED
 	$(create-empty-package)
-else
-	$(if $(PRIVATE_SOURCE_ARCHIVE),\
-	  $(call initialize-package-file,$(PRIVATE_SOURCE_ARCHIVE),$@),\
-	  $(create-empty-package))
-endif
 	$(add-assets-to-package)
 ifneq ($(jni_shared_libraries),)
 	$(add-jni-shared-libs-to-package)
@@ -437,13 +411,15 @@
 ifeq ($(full_classes_jar),)
 # We don't build jar, need to add the Java resources here.
 	$(if $(PRIVATE_EXTRA_JAR_ARGS),$(call add-java-resources-to,$@))
-else
+else  # full_classes_jar
 	$(add-dex-to-package)
-endif
-ifdef LOCAL_JACK_ENABLED
+endif  # full_classes_jar
 	$(add-carried-jack-resources)
-endif
 ifdef LOCAL_DEX_PREOPT
+ifneq ($(BUILD_PLATFORM_ZIP),)
+	@# Keep a copy of apk with classes.dex unstripped
+	$(hide) cp -f $@ $(dir $@)package.dex.apk
+endif  # BUILD_PLATFORM_ZIP
 ifneq (nostripping,$(LOCAL_DEX_PREOPT))
 	$(call dexpreopt-remove-classes.dex,$@)
 endif
@@ -497,7 +473,7 @@
 	$(sign-package)
 
 # Rules to install the splits
-$(installed_apk_splits) : $(my_module_path)/$(LOCAL_MODULE)_%.apk : $(built_module_path)/package_%.apk | $(ACP)
+$(installed_apk_splits) : $(my_module_path)/$(LOCAL_MODULE)_%.apk : $(built_module_path)/package_%.apk
 	@echo "Install: $@"
 	$(copy-file-to-new-target)
 
diff --git a/core/pdk_fusion_modules.mk b/core/pdk_fusion_modules.mk
new file mode 100644
index 0000000..49b30dc
--- /dev/null
+++ b/core/pdk_fusion_modules.mk
@@ -0,0 +1,78 @@
+# Auto-generate module defitions from platform.zip.
+# We use these rules to rebuild .odex files of the .jar/.apk inside the platform.zip.
+#
+
+pdk_dexpreopt_config_mk := $(TARGET_OUT_INTERMEDIATES)/pdk_dexpreopt_config.mk
+
+$(shell rm -f $(pdk_dexpreopt_config_mk) && mkdir -p $(dir $(pdk_dexpreopt_config_mk)) && \
+        unzip -qo $(PDK_FUSION_PLATFORM_ZIP) -d $(dir $(pdk_dexpreopt_config_mk)) pdk_dexpreopt_config.mk 2>/dev/null)
+
+-include $(pdk_dexpreopt_config_mk)
+
+# Define a PDK prebuilt module that comes from platform.zip.
+# Must be called with $(eval)
+define prebuilt-pdk-java-module
+include $(CLEAR_VARS)
+LOCAL_MODULE:=$(1)
+LOCAL_MODULE_CLASS:=$(2)
+# Use LOCAL_PREBUILT_MODULE_FILE instead of LOCAL_SRC_FILES so we don't need to deal with LOCAL_PATH.
+LOCAL_PREBUILT_MODULE_FILE:=$(3)
+LOCAL_DEX_PREOPT:=$(4)
+LOCAL_MULTILIB:=$(5)
+LOCAL_DEX_PREOPT_FLAGS:=$(6)
+LOCAL_BUILT_MODULE_STEM:=$(7)
+LOCAL_MODULE_SUFFIX:=$(suffix $(7))
+LOCAL_PRIVILEGED_MODULE:=$(8)
+LOCAL_PROPRIETARY_MODULE:=$(9)
+LOCAL_MODULE_TARGET_ARCH:=$(10)
+LOCAL_REPLACE_PREBUILT_APK_INSTALLED:=$(11)
+LOCAL_CERTIFICATE:=PRESIGNED
+include $(BUILD_PREBUILT)
+
+# The source prebuilts are extracted in the rule of _pdk_fusion_stamp.
+# Use a touch rule to establish the dependency.
+$(3) $(11) : $(_pdk_fusion_stamp)
+	$(hide) if [ ! -f $$@ ]; then \
+	  echo 'Error: $$@ does not exist. Check your platform.zip.' 1>&2; \
+	  exit 1; \
+	fi
+	$(hide) touch $$@
+endef
+
+# We don't have a LOCAL_PATH for the auto-generated modules, so let it be the $(BUILD_SYSTEM).
+LOCAL_PATH := $(BUILD_SYSTEM)
+
+##### Java libraries.
+# Only set up rules for modules that aren't built from source.
+pdk_prebuilt_libraries := $(foreach l,$(PDK.DEXPREOPT.JAVA_LIBRARIES),\
+  $(if $(MODULE.TARGET.JAVA_LIBRARIES.$(l)),,$(l)))
+
+$(foreach l,$(pdk_prebuilt_libraries), $(eval \
+  $(call prebuilt-pdk-java-module,\
+    $(l),\
+    JAVA_LIBRARIES,\
+    $(_pdk_fusion_intermediates)/$(PDK.DEXPREOPT.$(l).SRC),\
+    $(PDK.DEXPREOPT.$(l).DEX_PREOPT),\
+    $(PDK.DEXPREOPT.$(l).MULTILIB),\
+    $(PDK.DEXPREOPT.$(l).DEX_PREOPT_FLAGS),\
+    javalib.jar,\
+    )))
+
+###### Apps.
+pdk_prebuilt_apps := $(foreach a,$(PDK.DEXPREOPT.APPS),\
+  $(if $(MODULE.TARGET.APPS.$(a)),,$(a)))
+
+$(foreach a,$(pdk_prebuilt_apps), $(eval \
+  $(call prebuilt-pdk-java-module,\
+    $(a),\
+    APPS,\
+    $(_pdk_fusion_intermediates)/$(PDK.DEXPREOPT.$(a).SRC),\
+    $(PDK.DEXPREOPT.$(a).DEX_PREOPT),\
+    $(PDK.DEXPREOPT.$(a).MULTILIB),\
+    $(PDK.DEXPREOPT.$(a).DEX_PREOPT_FLAGS),\
+    package.apk,\
+    $(PDK.DEXPREOPT.$(a).PRIVILEGED_MODULE),\
+    $(PDK.DEXPREOPT.$(a).PROPRIETARY_MODULE),\
+    $(PDK.DEXPREOPT.$(a).TARGET_ARCH),\
+    $(_pdk_fusion_intermediates)/$(PDK.DEXPREOPT.$(a).STRIPPED_SRC),\
+    )))
diff --git a/core/phony_package.mk b/core/phony_package.mk
index 866b13c..b534335 100644
--- a/core/phony_package.mk
+++ b/core/phony_package.mk
@@ -7,7 +7,7 @@
 
 include $(BUILD_SYSTEM)/base_rules.mk
 
-$(LOCAL_BUILT_MODULE): $(LOCAL_MODULE_MAKEFILE_DEP) $(LOCAL_ADDITIONAL_DEPENDENCIES)
+$(LOCAL_BUILT_MODULE): $(LOCAL_ADDITIONAL_DEPENDENCIES)
 	$(hide) echo "Fake: $@"
 	$(hide) mkdir -p $(dir $@)
 	$(hide) touch $@
diff --git a/core/post_clean.mk b/core/post_clean.mk
index 7fafe4a..f08abff 100644
--- a/core/post_clean.mk
+++ b/core/post_clean.mk
@@ -54,27 +54,30 @@
 current_all_packages_config :=
 
 #######################################################
-# Check if we need to delete obsolete aidl-generated java files.
-# When an aidl file gets deleted (or renamed), the generated java file is obsolete.
-previous_aidl_config := $(TARGET_OUT_COMMON_INTERMEDIATES)/previous_aidl_config.mk
-current_aidl_config := $(TARGET_OUT_COMMON_INTERMEDIATES)/current_aidl_config.mk
+# Check if we need to delete obsolete generated java files.
+# When an aidl/proto/etc file gets deleted (or renamed), the generated java file is obsolete.
+previous_gen_java_config := $(TARGET_OUT_COMMON_INTERMEDIATES)/previous_gen_java_config.mk
+current_gen_java_config := $(TARGET_OUT_COMMON_INTERMEDIATES)/current_gen_java_config.mk
 
-$(shell rm -rf $(current_aidl_config) \
-  && mkdir -p $(dir $(current_aidl_config))\
-  && touch $(current_aidl_config))
--include $(previous_aidl_config)
+$(shell rm -rf $(current_gen_java_config) \
+  && mkdir -p $(dir $(current_gen_java_config))\
+  && touch $(current_gen_java_config))
+-include $(previous_gen_java_config)
 
 intermediates_to_clean :=
-modules_with_aidl_files :=
+modules_with_gen_java_files :=
 $(foreach p, $(ALL_MODULES), \
-  $(if $(ALL_MODULES.$(p).AIDL_FILES),\
-    $(eval modules_with_aidl_files += $(p))\
-    $(shell echo 'AIDL_FILES.$(p) := $(ALL_MODULES.$(p).AIDL_FILES)' >> $(current_aidl_config)))\
-  $(if $(filter-out $(ALL_MODULES.$(p).AIDL_FILES),$(AIDL_FILES.$(p))),\
+  $(eval gs := $(strip $(ALL_MODULES.$(p).AIDL_FILES)\
+                       $(ALL_MODULES.$(p).PROTO_FILES)\
+                       $(ALL_MODULES.$(p).RS_FILES)))\
+  $(if $(gs),\
+    $(eval modules_with_gen_java_files += $(p))\
+    $(shell echo 'GEN_SRC_FILES.$(p) := $(gs)' >> $(current_gen_java_config)))\
+  $(if $(filter-out $(gs),$(GEN_SRC_FILES.$(p))),\
     $(eval intermediates_to_clean += $(ALL_MODULES.$(p).INTERMEDIATE_SOURCE_DIR))))
 intermediates_to_clean := $(strip $(intermediates_to_clean))
 ifdef intermediates_to_clean
-$(info *** Obsolete aidl-generated files detected, clean intermediate files...)
+$(info *** Obsolete generated java files detected, clean intermediate files...)
 $(info *** rm -rf $(intermediates_to_clean))
 $(shell rm -rf $(intermediates_to_clean))
 intermediates_to_clean :=
@@ -82,15 +85,15 @@
 
 # For modules not loaded by the current build (e.g. you are running mm/mmm),
 # we copy the info from the previous bulid.
-$(foreach p, $(filter-out $(ALL_MODULES),$(MODULES_WITH_AIDL_FILES)),\
-  $(shell echo 'AIDL_FILES.$(p) := $(AIDL_FILES.$(p))' >> $(current_aidl_config)))
-MODULES_WITH_AIDL_FILES := $(sort $(MODULES_WITH_AIDL_FILES) $(modules_with_aidl_files))
-$(shell echo 'MODULES_WITH_AIDL_FILES := $(MODULES_WITH_AIDL_FILES)' >> $(current_aidl_config))
+$(foreach p, $(filter-out $(ALL_MODULES),$(MODULES_WITH_GEN_JAVA_FILES)),\
+  $(shell echo 'GEN_SRC_FILES.$(p) := $(GEN_SRC_FILES.$(p))' >> $(current_gen_java_config)))
+MODULES_WITH_GEN_JAVA_FILES := $(sort $(MODULES_WITH_GEN_JAVA_FILES) $(modules_with_gen_java_files))
+$(shell echo 'MODULES_WITH_GEN_JAVA_FILES := $(MODULES_WITH_GEN_JAVA_FILES)' >> $(current_gen_java_config))
 
 # Now current becomes previous.
-$(shell cmp $(current_aidl_config) $(previous_aidl_config) > /dev/null 2>&1 || mv -f $(current_aidl_config) $(previous_aidl_config))
+$(shell cmp $(current_gen_java_config) $(previous_gen_java_config) > /dev/null 2>&1 || mv -f $(current_gen_java_config) $(previous_gen_java_config))
 
-MODULES_WITH_AIDL_FILES :=
-modules_with_aidl_files :=
-previous_aidl_config :=
-current_aidl_config :=
+MODULES_WITH_GEN_JAVA_FILES :=
+modules_with_gen_java_files :=
+previous_gen_java_config :=
+current_gen_java_config :=
diff --git a/core/prebuilt.mk b/core/prebuilt.mk
index fd63560..f1edc8a 100644
--- a/core/prebuilt.mk
+++ b/core/prebuilt.mk
@@ -11,6 +11,10 @@
   LOCAL_HOST_PREFIX :=
 else
   my_prefix := TARGET_
+
+  ifeq ($(TARGET_TRANSLATE_2ND_ARCH),true)
+    LOCAL_MULTILIB := first
+  endif
 endif
 
 include $(BUILD_SYSTEM)/multilib.mk
@@ -42,9 +46,6 @@
 OVERRIDE_BUILT_MODULE_PATH :=
 LOCAL_BUILT_MODULE :=
 LOCAL_INSTALLED_MODULE :=
-LOCAL_MODULE_STEM :=
-LOCAL_BUILT_MODULE_STEM :=
-LOCAL_INSTALLED_MODULE_STEM :=
 LOCAL_INTERMEDIATE_TARGETS :=
 include $(BUILD_SYSTEM)/prebuilt_internal.mk
 endif # $(my_module_arch_supported)
@@ -64,9 +65,6 @@
 OVERRIDE_BUILT_MODULE_PATH :=
 LOCAL_BUILT_MODULE :=
 LOCAL_INSTALLED_MODULE :=
-LOCAL_MODULE_STEM :=
-LOCAL_BUILT_MODULE_STEM :=
-LOCAL_INSTALLED_MODULE_STEM :=
 LOCAL_INTERMEDIATE_TARGETS :=
 include $(BUILD_SYSTEM)/prebuilt_internal.mk
 endif
@@ -82,9 +80,6 @@
 OVERRIDE_BUILT_MODULE_PATH :=
 LOCAL_BUILT_MODULE :=
 LOCAL_INSTALLED_MODULE :=
-LOCAL_MODULE_STEM :=
-LOCAL_BUILT_MODULE_STEM :=
-LOCAL_INSTALLED_MODULE_STEM :=
 LOCAL_INTERMEDIATE_TARGETS :=
 include $(BUILD_SYSTEM)/prebuilt_internal.mk
 endif
diff --git a/core/prebuilt_internal.mk b/core/prebuilt_internal.mk
index 3578c46..22fa6a6 100644
--- a/core/prebuilt_internal.mk
+++ b/core/prebuilt_internal.mk
@@ -38,22 +38,29 @@
   endif
 endif
 
+my_strip_module := $(firstword \
+  $(LOCAL_STRIP_MODULE_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) \
+  $(LOCAL_STRIP_MODULE))
+my_pack_module_relocations := $(firstword \
+  $(LOCAL_PACK_MODULE_RELOCATIONS_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) \
+  $(LOCAL_PACK_MODULE_RELOCATIONS))
+
 ifeq (SHARED_LIBRARIES,$(LOCAL_MODULE_CLASS))
   # Put the built targets of all shared libraries in a common directory
   # to simplify the link line.
   OVERRIDE_BUILT_MODULE_PATH := $($(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)OUT_INTERMEDIATE_LIBRARIES)
-  ifeq ($(LOCAL_IS_HOST_MODULE)$(LOCAL_STRIP_MODULE),)
+  ifeq ($(LOCAL_IS_HOST_MODULE)$(my_strip_module),)
     # Strip but not try to add debuglink
-    LOCAL_STRIP_MODULE := no_debuglink
+    my_strip_module := no_debuglink
   endif
 
-  ifeq ($(LOCAL_IS_HOST_MODULE)$(LOCAL_PACK_MODULE_RELOCATIONS),)
+  ifeq ($(LOCAL_IS_HOST_MODULE)$(my_pack_module_relocations),)
     # Do not pack relocations by default
-    LOCAL_PACK_MODULE_RELOCATIONS := false
+    my_pack_module_relocations := false
   endif
 
   ifeq ($(DISABLE_RELOCATION_PACKER),true)
-    LOCAL_PACK_MODULE_RELOCATIONS := false
+    my_pack_module_relocations := false
   endif
 endif
 
@@ -70,12 +77,18 @@
 endif
 endif
 
+ifeq (JAVA_LIBRARIES,$(LOCAL_IS_HOST_MODULE)$(LOCAL_MODULE_CLASS)$(filter true,$(LOCAL_UNINSTALLABLE_MODULE)))
+  prebuilt_module_is_dex_javalib := true
+else
+  prebuilt_module_is_dex_javalib :=
+endif
+
 ifeq ($(LOCAL_MODULE_CLASS),APPS)
 LOCAL_BUILT_MODULE_STEM := package.apk
 LOCAL_INSTALLED_MODULE_STEM := $(LOCAL_MODULE).apk
 endif
 
-ifneq ($(filter true no_debuglink,$(LOCAL_STRIP_MODULE) $(LOCAL_PACK_MODULE_RELOCATIONS)),)
+ifneq ($(filter true no_debuglink,$(my_strip_module) $(my_pack_module_relocations)),)
   ifdef LOCAL_IS_HOST_MODULE
     $(error Cannot strip/pack host module LOCAL_PATH=$(LOCAL_PATH))
   endif
@@ -85,17 +98,20 @@
   ifneq ($(LOCAL_PREBUILT_STRIP_COMMENTS),)
     $(error Cannot strip/pack scripts LOCAL_PATH=$(LOCAL_PATH))
   endif
+  # Set the arch-specific variables to set up the strip/pack rules.
+  LOCAL_STRIP_MODULE_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH) := $(my_strip_module)
+  LOCAL_PACK_MODULE_RELOCATIONS_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH) := $(my_pack_module_relocations)
   include $(BUILD_SYSTEM)/dynamic_binary.mk
   built_module := $(linked_module)
 
-else  # LOCAL_STRIP_MODULE and LOCAL_PACK_MODULE_RELOCATIONS not true
+else  # my_strip_module and my_pack_module_relocations not true
   include $(BUILD_SYSTEM)/base_rules.mk
   built_module := $(LOCAL_BUILT_MODULE)
 
 ifdef prebuilt_module_is_a_library
 export_includes := $(intermediates)/export_includes
 $(export_includes): PRIVATE_EXPORT_C_INCLUDE_DIRS := $(LOCAL_EXPORT_C_INCLUDE_DIRS)
-$(export_includes) : $(LOCAL_MODULE_MAKEFILE_DEP)
+$(export_includes) :
 	@echo Export includes file: $< -- $@
 	$(hide) mkdir -p $(dir $@) && rm -f $@
 ifdef LOCAL_EXPORT_C_INCLUDE_DIRS
@@ -130,8 +146,8 @@
 endif
 
 # We need to enclose the above export_includes and my_built_shared_libraries in
-# "LOCAL_STRIP_MODULE not true" because otherwise the rules are defined in dynamic_binary.mk.
-endif  # LOCAL_STRIP_MODULE not true
+# "my_strip_module not true" because otherwise the rules are defined in dynamic_binary.mk.
+endif  # my_strip_module not true
 
 ifeq ($(LOCAL_MODULE_CLASS),APPS)
 PACKAGES.$(LOCAL_MODULE).OVERRIDES := $(strip $(LOCAL_OVERRIDES_PACKAGES))
@@ -193,16 +209,23 @@
 endif
 
 # Disable dex-preopt of prebuilts to save space, if requested.
+ifndef LOCAL_DEX_PREOPT
 ifeq ($(DONT_DEXPREOPT_PREBUILTS),true)
 LOCAL_DEX_PREOPT := false
 endif
+endif
 
 #######################################
 # defines built_odex along with rule to install odex
 include $(BUILD_SYSTEM)/dex_preopt_odex_install.mk
 #######################################
-# Sign and align non-presigned .apks.
+ifneq ($(LOCAL_REPLACE_PREBUILT_APK_INSTALLED),)
+# There is a replacement for the prebuilt .apk we can install without any processing.
+$(built_module) : $(LOCAL_REPLACE_PREBUILT_APK_INSTALLED) | $(ACP)
+	$(transform-prebuilt-to-target)
 
+else  # ! LOCAL_REPLACE_PREBUILT_APK_INSTALLED
+# Sign and align non-presigned .apks.
 # The embedded prebuilt jni to uncompress.
 ifeq ($(LOCAL_CERTIFICATE),PRESIGNED)
 # For PRESIGNED apks we must uncompress every .so file:
@@ -216,21 +239,28 @@
 endif
 $(built_module): PRIVATE_EMBEDDED_JNI_LIBS := $(embedded_prebuilt_jni_libs)
 
-$(built_module) : $(my_prebuilt_src_file) | $(ACP) $(ZIPALIGN) $(SIGNAPK_JAR) $(AAPT)
+$(built_module) : $(my_prebuilt_src_file) | $(ZIPALIGN) $(SIGNAPK_JAR) $(AAPT)
 	$(transform-prebuilt-to-target)
 	$(uncompress-shared-libs)
+ifdef LOCAL_DEX_PREOPT
+ifneq ($(BUILD_PLATFORM_ZIP),)
+	@# Keep a copy of apk with classes.dex unstripped
+	$(hide) cp -f $@ $(dir $@)package.dex.apk
+endif  # BUILD_PLATFORM_ZIP
+endif  # LOCAL_DEX_PREOPT
 ifneq ($(LOCAL_CERTIFICATE),PRESIGNED)
 	@# Only strip out files if we can re-sign the package.
 ifdef LOCAL_DEX_PREOPT
 ifneq (nostripping,$(LOCAL_DEX_PREOPT))
 	$(call dexpreopt-remove-classes.dex,$@)
-endif
-endif
+endif  # LOCAL_DEX_PREOPT != nostripping
+endif  # LOCAL_DEX_PREOPT
 	$(sign-package)
 	# No need for align-package because sign-package takes care of alignment
-else
+else  # LOCAL_CERTIFICATE == PRESIGNED
 	$(align-package)
-endif
+endif  # LOCAL_CERTIFICATE
+endif  # ! LOCAL_REPLACE_PREBUILT_APK_INSTALLED
 
 ###############################
 ## Rule to build the odex file
@@ -255,12 +285,12 @@
 
 $(built_apk_splits) : PRIVATE_PRIVATE_KEY := $(LOCAL_CERTIFICATE).pk8
 $(built_apk_splits) : PRIVATE_CERTIFICATE := $(LOCAL_CERTIFICATE).x509.pem
-$(built_apk_splits) : $(built_module_path)/%.apk : $(my_src_dir)/%.apk | $(ACP) $(AAPT)
+$(built_apk_splits) : $(built_module_path)/%.apk : $(my_src_dir)/%.apk | $(AAPT)
 	$(copy-file-to-new-target)
 	$(sign-package)
 
 # Rules to install the split apks.
-$(installed_apk_splits) : $(my_module_path)/%.apk : $(built_module_path)/%.apk | $(ACP)
+$(installed_apk_splits) : $(my_module_path)/%.apk : $(built_module_path)/%.apk
 	@echo "Install: $@"
 	$(copy-file-to-new-target)
 
@@ -274,31 +304,67 @@
 
 endif # LOCAL_PACKAGE_SPLITS
 
-else # LOCAL_MODULE_CLASS != APPS
-ifneq ($(LOCAL_PREBUILT_STRIP_COMMENTS),)
+else ifeq ($(prebuilt_module_is_dex_javalib),true)  # LOCAL_MODULE_CLASS != APPS
+# This is a target shared library, i.e. a jar with classes.dex.
+#######################################
+# defines built_odex along with rule to install odex
+include $(BUILD_SYSTEM)/dex_preopt_odex_install.mk
+#######################################
+ifdef LOCAL_DEX_PREOPT
+ifneq ($(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
+$(built_module) : $(dexpreopted_boot_jar) | $(ACP)
+	$(call copy-file-to-target)
+
+# For libart boot jars, we don't have .odex files.
+else # ! boot jar
+$(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: $(PRIVATE_MODULE) ($@)"
+	$(call dexpreopt-one-file,$<,$@)
+
+$(built_module) : $(my_prebuilt_src_file) | $(ACP)
+	$(call copy-file-to-target)
+ifneq (nostripping,$(LOCAL_DEX_PREOPT))
+	$(call dexpreopt-remove-classes.dex,$@)
+endif
+endif # boot jar
+else # ! LOCAL_DEX_PREOPT
+$(built_module) : $(my_prebuilt_src_file) | $(ACP)
+	$(call copy-file-to-target)
+endif # LOCAL_DEX_PREOPT
+
+else  # ! prebuilt_module_is_dex_javalib
 $(built_module) : $(my_prebuilt_src_file)
+ifneq ($(LOCAL_PREBUILT_STRIP_COMMENTS),)
 	$(transform-prebuilt-to-target-strip-comments)
 else
-ifneq ($(LOCAL_ACP_UNAVAILABLE),true)
-$(built_module) : $(my_prebuilt_src_file) | $(ACP)
 	$(transform-prebuilt-to-target)
-else
-$(built_module) : $(my_prebuilt_src_file)
-	$(copy-file-to-target-with-cp)
 endif
+ifeq ($(LOCAL_MODULE_CLASS),EXECUTABLES)
+	$(hide) chmod +x $@
 endif
-endif # LOCAL_MODULE_CLASS != APPS
+endif # ! prebuilt_module_is_dex_javalib
 
-ifeq ($(LOCAL_IS_HOST_MODULE)$(LOCAL_MODULE_CLASS),JAVA_LIBRARIES)
+ifeq ($(LOCAL_MODULE_CLASS),JAVA_LIBRARIES)
+my_src_jar := $(my_prebuilt_src_file)
+ifeq ($(LOCAL_IS_HOST_MODULE),)
 # for target java libraries, the LOCAL_BUILT_MODULE is in a product-specific dir,
 # while the deps should be in the common dir, so we make a copy in the common dir.
-# For nonstatic library, $(common_javalib_jar) is the dependency file,
-# while $(common_classes_jar) is used to link.
 common_classes_jar := $(intermediates.COMMON)/classes.jar
 common_javalib_jar := $(intermediates.COMMON)/javalib.jar
 
 $(common_classes_jar) $(common_javalib_jar): PRIVATE_MODULE := $(LOCAL_MODULE)
 
+ifeq ($(prebuilt_module_is_dex_javalib),true)
+# For prebuilt shared Java library we don't have classes.jar.
+$(common_javalib_jar) : $(my_src_jar) | $(ACP)
+	$(transform-prebuilt-to-target)
+
+else  # ! prebuilt_module_is_dex_javalib
+
 ifneq ($(filter %.aar, $(my_prebuilt_src_file)),)
 # This is .aar file, archive of classes.jar and Android resources.
 my_src_jar := $(intermediates.COMMON)/aar/classes.jar
@@ -309,31 +375,30 @@
 	# Make sure the extracted classes.jar has a new timestamp.
 	$(hide) touch $@
 
-else
-# This is jar file.
-my_src_jar := $(my_prebuilt_src_file)
 endif
-$(common_classes_jar) : $(my_src_jar) | $(ACP)
+
+$(common_classes_jar) : $(my_src_jar)
 	$(transform-prebuilt-to-target)
 
-$(common_javalib_jar) : $(common_classes_jar) | $(ACP)
+$(common_javalib_jar) : $(common_classes_jar)
 	$(transform-prebuilt-to-target)
 
 $(call define-jar-to-toc-rule, $(common_classes_jar))
 
 # make sure the classes.jar and javalib.jar are built before $(LOCAL_BUILT_MODULE)
 $(built_module) : $(common_javalib_jar)
-endif # TARGET JAVA_LIBRARIES
 
-ifeq ($(LOCAL_MODULE_CLASS),JAVA_LIBRARIES)
+endif # ! prebuilt_module_is_dex_javalib
+endif # LOCAL_IS_HOST_MODULE is not set
 
-ifneq ($(LOCAL_JILL_FLAGS),)
-$(error LOCAL_JILL_FLAGS is not supported any more, please use jack options in LOCAL_JACK_FLAGS instead)
-endif
+ifneq ($(prebuilt_module_is_dex_javalib),true)
 
+# We may be building classes.jack from a host jar for host dalvik Java library.
 $(intermediates.COMMON)/classes.jack : PRIVATE_JACK_FLAGS:=$(LOCAL_JACK_FLAGS)
-$(intermediates.COMMON)/classes.jack : $(my_src_jar) $(LOCAL_MODULE_MAKEFILE_DEP) \
-        $(LOCAL_ADDITIONAL_DEPENDENCIES) $(JACK) | setup-jack-server
+$(intermediates.COMMON)/classes.jack : PRIVATE_JACK_MIN_SDK_VERSION := 1
+$(intermediates.COMMON)/classes.jack : $(my_src_jar) \
+        $(LOCAL_ADDITIONAL_DEPENDENCIES) $(JACK_DEFAULT_ARGS) $(JACK) \
+        | setup-jack-server
 	$(transform-jar-to-jack)
 
 # Update timestamps of .toc files for prebuilts so dependents will be
@@ -341,8 +406,9 @@
 $(intermediates.COMMON)/classes.dex.toc: $(intermediates.COMMON)/classes.jack
 	touch $@
 
+endif # ! prebuilt_module_is_dex_javalib
 endif # JAVA_LIBRARIES
 
-$(built_module) : $(LOCAL_MODULE_MAKEFILE_DEP) $(LOCAL_ADDITIONAL_DEPENDENCIES)
+$(built_module) : $(LOCAL_ADDITIONAL_DEPENDENCIES)
 
 my_prebuilt_src_file :=
diff --git a/core/product.mk b/core/product.mk
index 4d35704..7043cff 100644
--- a/core/product.mk
+++ b/core/product.mk
@@ -23,14 +23,21 @@
 # and the .mk suffix) of the product makefile, "<product_name>:" can be
 # omitted.
 
+# Search for AndroidProducts.mks in the given dir.
+# $(1): the path to the dir
+define _search-android-products-files-in-dir
+$(sort $(shell test -d $(1) && find -L $(1) \
+  -maxdepth 6 \
+  -name .git -prune \
+  -o -name AndroidProducts.mk -print))
+endef
+
 #
 # Returns the list of all AndroidProducts.mk files.
 # $(call ) isn't necessary.
 #
 define _find-android-products-files
-$(sort $(shell test -d device && find -L device -maxdepth 6 -name AndroidProducts.mk)) \
-  $(sort $(shell test -d vendor && find -L vendor -maxdepth 6 -name AndroidProducts.mk)) \
-  $(sort $(shell test -d product && find -L product -maxdepth 6 -name AndroidProducts.mk)) \
+$(foreach d, device vendor product,$(call _search-android-products-files-in-dir,$(d))) \
   $(SRC_TARGET_DIR)/product/AndroidProducts.mk
 endef
 
diff --git a/core/product_config.mk b/core/product_config.mk
index ad3b518..6aefa8d 100644
--- a/core/product_config.mk
+++ b/core/product_config.mk
@@ -117,7 +117,7 @@
   # which really means TARGET_PRODUCT=dream make installclean.
   ifneq ($(filter-out $(INTERNAL_VALID_VARIANTS),$(TARGET_BUILD_VARIANT)),)
     MAKECMDGOALS := $(MAKECMDGOALS) $(TARGET_BUILD_VARIANT)
-    TARGET_BUILD_VARIANT := eng
+    TARGET_BUILD_VARIANT := userdebug
     default_goal_substitution :=
   else
     default_goal_substitution := $(DEFAULT_GOAL)
diff --git a/core/shared_library.mk b/core/shared_library.mk
index 73aca78c..2f48341 100644
--- a/core/shared_library.mk
+++ b/core/shared_library.mk
@@ -38,9 +38,6 @@
 OVERRIDE_BUILT_MODULE_PATH :=
 LOCAL_BUILT_MODULE :=
 LOCAL_INSTALLED_MODULE :=
-LOCAL_MODULE_STEM :=
-LOCAL_BUILT_MODULE_STEM :=
-LOCAL_INSTALLED_MODULE_STEM :=
 LOCAL_INTERMEDIATE_TARGETS :=
 
 include $(BUILD_SYSTEM)/shared_library_internal.mk
diff --git a/core/shared_library_internal.mk b/core/shared_library_internal.mk
index b9a5e3e..6fec460 100644
--- a/core/shared_library_internal.mk
+++ b/core/shared_library_internal.mk
@@ -76,7 +76,6 @@
         $(all_libraries) \
         $(my_target_crtbegin_so_o) \
         $(my_target_crtend_so_o) \
-        $(LOCAL_MODULE_MAKEFILE_DEP) \
         $(LOCAL_ADDITIONAL_DEPENDENCIES)
 	$(transform-o-to-shared-lib)
 
diff --git a/core/soong.mk b/core/soong.mk
index 578aac9..659a1ab 100644
--- a/core/soong.mk
+++ b/core/soong.mk
@@ -1,23 +1,34 @@
 SOONG_OUT_DIR := $(OUT_DIR)/soong
 SOONG := $(SOONG_OUT_DIR)/soong
+SOONG_BOOTSTRAP := $(SOONG_OUT_DIR)/.soong.bootstrap
 SOONG_BUILD_NINJA := $(SOONG_OUT_DIR)/build.ninja
-SOONG_ANDROID_MK := $(SOONG_OUT_DIR)/Android.mk
-SOONG_VARIABLES := $(SOONG_OUT_DIR)/soong.variables
 SOONG_IN_MAKE := $(SOONG_OUT_DIR)/.soong.in_make
-SOONG_HOST_EXECUTABLES := $(SOONG_OUT_DIR)/host/$(HOST_PREBUILT_TAG)/bin
-KATI := $(SOONG_HOST_EXECUTABLES)/ckati
-MAKEPARALLEL := $(SOONG_HOST_EXECUTABLES)/makeparallel
+SOONG_VARIABLES := $(SOONG_OUT_DIR)/soong.variables
 
-ifeq (,$(filter /%,$(SOONG_OUT_DIR)))
-SOONG_TOP_RELPATH := $(shell python -c "import os; print os.path.relpath('$(TOP)', '$(SOONG_OUT_DIR)')")
-else
-SOONG_TOP_RELPATH := $(realpath $(TOP))
+# Only include the Soong-generated Android.mk if we're merging the
+# Soong-defined binaries with Kati-defined binaries.
+ifeq ($(USE_SOONG),true)
+SOONG_ANDROID_MK := $(SOONG_OUT_DIR)/Android.mk
 endif
 
-# Bootstrap soong.  Run only the first time for clean builds
-$(SOONG):
+# We need to rebootstrap soong if SOONG_OUT_DIR or the reverse path from
+# SOONG_OUT_DIR to TOP changes
+SOONG_NEEDS_REBOOTSTRAP :=
+ifneq ($(wildcard $(SOONG_BOOTSTRAP)),)
+  ifneq ($(SOONG_OUT_DIR),$(strip $(shell source $(SOONG_BOOTSTRAP); echo $$BUILDDIR)))
+    SOONG_NEEDS_REBOOTSTRAP := FORCE
+    $(warning soong_out_dir changed)
+  endif
+  ifneq ($(strip $(shell build/soong/reverse_path.py $(SOONG_OUT_DIR))),$(strip $(shell source $(SOONG_BOOTSTRAP); echo $$SRCDIR_FROM_BUILDDIR)))
+    SOONG_NEEDS_REBOOTSTRAP := FORCE
+    $(warning reverse path changed)
+  endif
+endif
+
+# Bootstrap soong.
+$(SOONG_BOOTSTRAP): bootstrap.bash $(SOONG_NEEDS_REBOOTSTRAP)
 	$(hide) mkdir -p $(dir $@)
-	$(hide) cd $(dir $@) && $(SOONG_TOP_RELPATH)/bootstrap.bash
+	$(hide) BUILDDIR=$(SOONG_OUT_DIR) ./bootstrap.bash
 
 # Create soong.variables with copies of makefile settings.  Runs every build,
 # but only updates soong.variables if it changes
@@ -26,11 +37,11 @@
 	$(hide) mkdir -p $(dir $@)
 	$(hide) (\
 	echo '{'; \
-	echo '    "Device_uses_jemalloc": $(if $(filter true,$(MALLOC_SVELTE)),false,true),'; \
-	echo '    "Device_uses_dlmalloc": $(if $(filter true,$(MALLOC_SVELTE)),true,false),'; \
 	echo '    "Platform_sdk_version": $(PLATFORM_SDK_VERSION),'; \
 	echo '    "Unbundled_build": $(if $(TARGET_BUILD_APPS),true,false),'; \
 	echo '    "Brillo": $(if $(BRILLO),true,false),'; \
+	echo '    "Malloc_not_svelte": $(if $(filter true,$(MALLOC_SVELTE)),false,true),'; \
+	echo '    "Allow_missing_dependencies": $(if $(TARGET_BUILD_APPS)$(filter true,$(SOONG_ALLOW_MISSING_DEPENDENCIES)),true,false),'; \
 	echo ''; \
 	echo '    "DeviceName": "$(TARGET_DEVICE)",'; \
 	echo '    "DeviceArch": "$(TARGET_ARCH)",'; \
@@ -62,9 +73,8 @@
 	$(hide) mkdir -p $(dir $@)
 	$(hide) touch $@
 
-# Build an Android.mk listing all soong outputs as prebuilts
-$(SOONG_ANDROID_MK): $(SOONG) $(SOONG_VARIABLES) $(SOONG_IN_MAKE) FORCE
-	$(hide) $(SOONG) $(KATI) $(MAKEPARALLEL) $(NINJA_ARGS)
-
-$(KATI): $(SOONG_ANDROID_MK)
-$(MAKEPARALLEL): $(SOONG_ANDROID_MK)
+# Run Soong, this implicitly create an Android.mk listing all soong outputs as
+# prebuilts.
+.PHONY: run_soong
+run_soong: $(SOONG_BOOTSTRAP) $(SOONG_VARIABLES) $(SOONG_IN_MAKE) FORCE
+	$(hide) $(SOONG) $(SOONG_BUILD_NINJA) $(NINJA_ARGS)
diff --git a/core/static_java_library.mk b/core/static_java_library.mk
index d956124..d3324f8 100644
--- a/core/static_java_library.mk
+++ b/core/static_java_library.mk
@@ -63,12 +63,10 @@
 
 LOCAL_PROGUARD_FLAGS := $(addprefix -include ,$(proguard_options_file)) $(LOCAL_PROGUARD_FLAGS)
 
-ifdef LOCAL_JACK_ENABLED
 ifndef LOCAL_JACK_PROGUARD_FLAGS
     LOCAL_JACK_PROGUARD_FLAGS := $(LOCAL_PROGUARD_FLAGS)
 endif
 LOCAL_JACK_PROGUARD_FLAGS := $(addprefix -include ,$(proguard_options_file)) $(LOCAL_JACK_PROGUARD_FLAGS)
-endif # LOCAL_JACK_ENABLED
 
 endif  # LOCAL_RESOURCE_DIR
 
@@ -126,12 +124,10 @@
 	$(create-resource-java-files)
 	$(hide) find $(PRIVATE_SOURCE_INTERMEDIATES_DIR) -name R.java | xargs cat > $@
 
-$(LOCAL_BUILT_MODULE): $(R_file_stamp)
-ifdef LOCAL_JACK_ENABLED
-$(noshrob_classes_jack): $(R_file_stamp)
-$(full_classes_jack): $(R_file_stamp)
-endif # LOCAL_JACK_ENABLED
-$(full_classes_compiled_jar): $(R_file_stamp)
+$(LOCAL_BUILT_MODULE) \
+$(full_classes_compiled_jar) \
+$(noshrob_classes_jack) $(full_classes_jack) $(jack_check_timestamp) \
+  : $(R_file_stamp)
 
 # Rule to build AAR, archive including classes.jar, resource, etc.
 built_aar := $(intermediates.COMMON)/javalib.aar
diff --git a/core/static_library.mk b/core/static_library.mk
index 854cbfc..a8ae399 100644
--- a/core/static_library.mk
+++ b/core/static_library.mk
@@ -23,9 +23,6 @@
 OVERRIDE_BUILT_MODULE_PATH :=
 LOCAL_BUILT_MODULE :=
 LOCAL_INSTALLED_MODULE :=
-LOCAL_MODULE_STEM :=
-LOCAL_BUILT_MODULE_STEM :=
-LOCAL_INSTALLED_MODULE_STEM :=
 LOCAL_INTERMEDIATE_TARGETS :=
 
 include $(BUILD_SYSTEM)/static_library_internal.mk
diff --git a/core/static_library_internal.mk b/core/static_library_internal.mk
index cabe823..2b49046 100644
--- a/core/static_library_internal.mk
+++ b/core/static_library_internal.mk
@@ -20,14 +20,6 @@
 
 include $(BUILD_SYSTEM)/binary.mk
 
-ifeq ($(LOCAL_RAW_STATIC_LIBRARY),true)
-LOCAL_RAW_STATIC_LIBRARY:=
-$(all_objects) : PRIVATE_TARGET_PROJECT_INCLUDES :=
-$(all_objects) : PRIVATE_TARGET_C_INCLUDES :=
-$(all_objects) : PRIVATE_TARGET_GLOBAL_CFLAGS :=
-$(all_objects) : PRIVATE_TARGET_GLOBAL_CPPFLAGS :=
-endif
-
 $(LOCAL_BUILT_MODULE) : $(built_whole_libraries)
 $(LOCAL_BUILT_MODULE) : $(all_objects)
 	$(transform-o-to-static-lib)
diff --git a/core/target_test_internal.mk b/core/target_test_internal.mk
index 4715fe8..9e25674 100644
--- a/core/target_test_internal.mk
+++ b/core/target_test_internal.mk
@@ -4,12 +4,21 @@
 
 LOCAL_CFLAGS += -DGTEST_OS_LINUX_ANDROID -DGTEST_HAS_STD_STRING
 
-LOCAL_C_INCLUDES += external/gtest/include
-
 ifndef LOCAL_SDK_VERSION
-LOCAL_STATIC_LIBRARIES += libgtest_main libgtest
+    LOCAL_STATIC_LIBRARIES += libgtest_main libgtest
 else
-LOCAL_STATIC_LIBRARIES += libgtest_main_ndk libgtest_ndk
+    ifneq (,$(filter c++_%,$(LOCAL_NDK_STL_VARIANT)))
+        my_ndk_gtest_suffix := _libcxx
+    else ifneq ($(filter stlport_,$(LOCAL_NDK_STL_VARIANT)),)
+        my_ndk_gtest_suffix :=
+    else ifneq ($(filter gnustl_,$(LOCAL_NDK_STL_VARIANT)),)
+        my_ndk_gtest_suffix := _gnustl
+    else # system STL, use stlport
+        my_ndk_gtest_suffix :=
+    endif
+    LOCAL_STATIC_LIBRARIES += \
+        libgtest_main_ndk$(my_ndk_gtest_suffix) \
+        libgtest_ndk$(my_ndk_gtest_suffix)
 endif
 
 ifdef LOCAL_MODULE_PATH
diff --git a/core/tasks/check_boot_jars/package_whitelist.txt b/core/tasks/check_boot_jars/package_whitelist.txt
index 3a1ca23..3cb6e28 100644
--- a/core/tasks/check_boot_jars/package_whitelist.txt
+++ b/core/tasks/check_boot_jars/package_whitelist.txt
@@ -38,6 +38,7 @@
 java\.util\.prefs
 java\.util\.regex
 java\.util\.spi
+java\.util\.stream
 java\.util\.zip
 javax\.crypto
 javax\.crypto\.interfaces
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 8b9bdba..099b38d 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -58,6 +58,15 @@
   PLATFORM_SDK_VERSION := 23
 endif
 
+ifeq "" "$(PLATFORM_JACK_MIN_SDK_VERSION)"
+  # This is definition of the min SDK version given to Jack for the current
+  # platform. For released version it should be the same as
+  # PLATFORM_SDK_VERSION. During development, this number may be incremented
+  # before PLATFORM_SDK_VERSION if the plateform starts to add new java
+  # language supports.
+  PLATFORM_JACK_MIN_SDK_VERSION := 24
+endif
+
 ifeq "" "$(PLATFORM_VERSION_CODENAME)"
   # This is the current development code-name, if the build is not a final
   # release build.  If this is a final release build, it is simply "REL".
@@ -104,7 +113,7 @@
   # Can be an arbitrary string, but must be a single word.
   #
   # If there is no $PLATFORM_SECURITY_PATCH set, keep it empty.
-  PLATFORM_SECURITY_PATCH := 2015-12-01
+  PLATFORM_SECURITY_PATCH := 2016-03-01
 endif
 
 ifeq "" "$(PLATFORM_BASE_OS)"
diff --git a/envsetup.sh b/envsetup.sh
index 61b9ff0..b1aab34 100644
--- a/envsetup.sh
+++ b/envsetup.sh
@@ -37,9 +37,62 @@
     echo $A
 }
 
+# Get all the build variables needed by this script in a single call to the build system.
+function build_build_var_cache()
+{
+    T=$(gettop)
+    # Grep out the variable names from the script.
+    cached_vars=`cat $T/build/envsetup.sh | tr '()' '  ' | awk '{for(i=1;i<=NF;i++) if($i~/get_build_var/) print $(i+1)}' | sort -u | tr '\n' ' '`
+    cached_abs_vars=`cat $T/build/envsetup.sh | tr '()' '  ' | awk '{for(i=1;i<=NF;i++) if($i~/get_abs_build_var/) print $(i+1)}' | sort -u | tr '\n' ' '`
+    # Call the build system to dump the "<val>=<value>" pairs as a shell script.
+    build_dicts_script=`\cd $T; CALLED_FROM_SETUP=true BUILD_SYSTEM=build/core \
+                        command make --no-print-directory -f build/core/config.mk \
+                        dump-many-vars \
+                        DUMP_MANY_VARS="$cached_vars" \
+                        DUMP_MANY_ABS_VARS="$cached_abs_vars" \
+                        DUMP_VAR_PREFIX="var_cache_" \
+                        DUMP_ABS_VAR_PREFIX="abs_var_cache_"`
+    local ret=$?
+    if [ $ret -ne 0 ]
+    then
+        unset build_dicts_script
+        return $ret
+    fi
+    # Excute the script to store the "<val>=<value>" pairs as shell variables.
+    eval "$build_dicts_script"
+    ret=$?
+    unset build_dicts_script
+    if [ $ret -ne 0 ]
+    then
+        return $ret
+    fi
+    BUILD_VAR_CACHE_READY="true"
+}
+
+# Delete the build var cache, so that we can still call into the build system
+# to get build variables not listed in this script.
+function destroy_build_var_cache()
+{
+    unset BUILD_VAR_CACHE_READY
+    for v in $cached_vars; do
+      unset var_cache_$v
+    done
+    unset cached_vars
+    for v in $cached_abs_vars; do
+      unset abs_var_cache_$v
+    done
+    unset cached_abs_vars
+}
+
 # Get the value of a build variable as an absolute path.
 function get_abs_build_var()
 {
+    if [ "$BUILD_VAR_CACHE_READY" = "true" ]
+    then
+        eval echo \"\${abs_var_cache_$1}\"
+    return
+    fi
+
     T=$(gettop)
     if [ ! "$T" ]; then
         echo "Couldn't locate the top of the tree.  Try setting TOP." >&2
@@ -52,6 +105,12 @@
 # Get the exact value of a build variable.
 function get_build_var()
 {
+    if [ "$BUILD_VAR_CACHE_READY" = "true" ]
+    then
+        eval echo \"\${var_cache_$1}\"
+    return
+    fi
+
     T=$(gettop)
     if [ ! "$T" ]; then
         echo "Couldn't locate the top of the tree.  Try setting TOP." >&2
@@ -321,7 +380,9 @@
         fi
     done
 
+    build_build_var_cache
     set_stuff_for_environment
+    destroy_build_var_cache
 }
 
 #
@@ -338,6 +399,7 @@
         default_value=aosp_arm
     fi
 
+    export TARGET_BUILD_APPS=
     export TARGET_PRODUCT=
     local ANSWER
     while [ -z "$TARGET_PRODUCT" ]
@@ -365,7 +427,9 @@
         fi
     done
 
+    build_build_var_cache
     set_stuff_for_environment
+    destroy_build_var_cache
 }
 
 function choosevariant()
@@ -428,8 +492,10 @@
     choosevariant $3
 
     echo
+    build_build_var_cache
     set_stuff_for_environment
     printconfig
+    destroy_build_var_cache
 }
 
 # Clear this variable.  It will be built up again when the vendorsetup.sh
@@ -511,16 +577,6 @@
 
     export TARGET_BUILD_APPS=
 
-    local product=$(echo -n $selection | sed -e "s/-.*$//")
-    check_product $product
-    if [ $? -ne 0 ]
-    then
-        echo
-        echo "** Don't have a product spec for: '$product'"
-        echo "** Do you have the right repo manifest?"
-        product=
-    fi
-
     local variant=$(echo -n $selection | sed -e "s/^[^\-]*-//")
     check_variant $variant
     if [ $? -ne 0 ]
@@ -531,6 +587,18 @@
         variant=
     fi
 
+    local product=$(echo -n $selection | sed -e "s/-.*$//")
+    TARGET_PRODUCT=$product \
+    TARGET_BUILD_VARIANT=$variant \
+    build_build_var_cache
+    if [ $? -ne 0 ]
+    then
+        echo
+        echo "** Don't have a product spec for: '$product'"
+        echo "** Do you have the right repo manifest?"
+        product=
+    fi
+
     if [ -z "$product" -o -z "$variant" ]
     then
         echo
@@ -545,6 +613,7 @@
 
     set_stuff_for_environment
     printconfig
+    destroy_build_var_cache
 }
 
 # Tab completion for lunch.
@@ -607,8 +676,10 @@
     export TARGET_BUILD_TYPE=release
     export TARGET_BUILD_APPS=$apps
 
+    build_build_var_cache
     set_stuff_for_environment
     printconfig
+    destroy_build_var_cache
 }
 
 function gettop
@@ -644,11 +715,18 @@
     local T="$1"
     test "$WITH_STATIC_ANALYZER" = "0" && unset WITH_STATIC_ANALYZER
     if [ -n "$WITH_STATIC_ANALYZER" ]; then
+        # Use scan-build to collect all static analyzer reports into directory
+        # /tmp/scan-build-yyyy-mm-dd-hhmmss-*
+        # The clang compiler passed by --use-analyzer here is not important.
+        # build/core/binary.mk will set CLANG_CXX and CLANG before calling
+        # c++-analyzer and ccc-analyzer.
+        local CLANG_VERSION=$(get_build_var LLVM_PREBUILTS_VERSION)
+        local BUILD_OS=$(get_build_var BUILD_OS)
+        local CLANG_DIR="$T/prebuilts/clang/host/${BUILD_OS}-x86/${CLANG_VERSION}"
         echo "\
-$T/prebuilts/misc/linux-x86/analyzer/tools/scan-build/scan-build \
---use-analyzer $T/prebuilts/misc/linux-x86/analyzer/bin/analyzer \
---status-bugs \
---top=$T"
+${CLANG_DIR}/tools/scan-build/bin/scan-build \
+--use-analyzer ${CLANG_DIR}/bin/clang \
+--status-bugs"
     fi
 }
 
@@ -871,18 +949,18 @@
         append='$'
         shift
     elif [ "$1" = "--help" -o "$1" = "-h" ]; then
-		echo "usage: qpid [[--exact] <process name|pid>"
-		return 255
-	fi
+        echo "usage: qpid [[--exact] <process name|pid>"
+        return 255
+    fi
 
     local EXE="$1"
     if [ "$EXE" ] ; then
-		qpid | \grep "$prepend$EXE$append"
-	else
-		adb shell ps \
-			| tr -d '\r' \
-			| sed -e 1d -e 's/^[^ ]* *\([0-9]*\).* \([^ ]*\)$/\1 \2/'
-	fi
+        qpid | \grep "$prepend$EXE$append"
+    else
+        adb shell ps \
+            | tr -d '\r' \
+            | sed -e 1d -e 's/^[^ ]* *\([0-9]*\).* \([^ ]*\)$/\1 \2/'
+    fi
 }
 
 function pid()
@@ -903,7 +981,7 @@
         echo "$PID"
     else
         echo "usage: pid [--exact] <process name>"
-		return 255
+        return 255
     fi
 }
 
@@ -916,25 +994,25 @@
 
 function coredump_setup()
 {
-	echo "Getting root...";
-	adb root;
-	adb wait-for-device;
+    echo "Getting root...";
+    adb root;
+    adb wait-for-device;
 
-	echo "Remounting root partition read-write...";
-	adb shell mount -w -o remount -t rootfs rootfs;
-	sleep 1;
-	adb wait-for-device;
-	adb shell mkdir -p /cores;
-	adb shell mount -t tmpfs tmpfs /cores;
-	adb shell chmod 0777 /cores;
+    echo "Remounting root partition read-write...";
+    adb shell mount -w -o remount -t rootfs rootfs;
+    sleep 1;
+    adb wait-for-device;
+    adb shell mkdir -p /cores;
+    adb shell mount -t tmpfs tmpfs /cores;
+    adb shell chmod 0777 /cores;
 
-	echo "Granting SELinux permission to dump in /cores...";
-	adb shell restorecon -R /cores;
+    echo "Granting SELinux permission to dump in /cores...";
+    adb shell restorecon -R /cores;
 
-	echo "Set core pattern.";
-	adb shell 'echo /cores/core.%p > /proc/sys/kernel/core_pattern';
+    echo "Set core pattern.";
+    adb shell 'echo /cores/core.%p > /proc/sys/kernel/core_pattern';
 
-	echo "Done."
+    echo "Done."
 }
 
 # coredump_enable - enable core dumps for the specified process
@@ -945,13 +1023,13 @@
 
 function coredump_enable()
 {
-	local PID=$1;
-	if [ -z "$PID" ]; then
-		printf "Expecting a PID!\n";
-		return;
-	fi;
-	echo "Setting core limit for $PID to infinite...";
-	adb shell prlimit $PID 4 -1 -1
+    local PID=$1;
+    if [ -z "$PID" ]; then
+        printf "Expecting a PID!\n";
+        return;
+    fi;
+    echo "Setting core limit for $PID to infinite...";
+    adb shell /system/bin/ulimit -p $PID -c unlimited
 }
 
 # core - send SIGV and pull the core for process
@@ -962,28 +1040,28 @@
 
 function core()
 {
-	local PID=$1;
+    local PID=$1;
 
-	if [ -z "$PID" ]; then
-		printf "Expecting a PID!\n";
-		return;
-	fi;
+    if [ -z "$PID" ]; then
+        printf "Expecting a PID!\n";
+        return;
+    fi;
 
-	local CORENAME=core.$PID;
-	local COREPATH=/cores/$CORENAME;
-	local SIG=SEGV;
+    local CORENAME=core.$PID;
+    local COREPATH=/cores/$CORENAME;
+    local SIG=SEGV;
 
-	coredump_enable $1;
+    coredump_enable $1;
 
-	local done=0;
-	while [ $(adb shell "[ -d /proc/$PID ] && echo -n yes") ]; do
-		printf "\tSending SIG%s to %d...\n" $SIG $PID;
-		adb shell kill -$SIG $PID;
-		sleep 1;
-	done;
+    local done=0;
+    while [ $(adb shell "[ -d /proc/$PID ] && echo -n yes") ]; do
+        printf "\tSending SIG%s to %d...\n" $SIG $PID;
+        adb shell kill -$SIG $PID;
+        sleep 1;
+    done;
 
-	adb shell "while [ ! -f $COREPATH ] ; do echo waiting for $COREPATH to be generated; sleep 1; done"
-	echo "Done: core is under $COREPATH on device.";
+    adb shell "while [ ! -f $COREPATH ] ; do echo waiting for $COREPATH to be generated; sleep 1; done"
+    echo "Done: core is under $COREPATH on device.";
 }
 
 # systemstack - dump the current stack trace of all threads in the system process
diff --git a/libs/host/Android.mk b/libs/host/Android.mk
index bc25e4b..5e6a291 100644
--- a/libs/host/Android.mk
+++ b/libs/host/Android.mk
@@ -12,10 +12,6 @@
 LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
 LOCAL_CXX_STL := none
 
-# acp uses libhost, so we can't use
-# acp to install libhost.
-LOCAL_ACP_UNAVAILABLE:= true
-
 include $(BUILD_HOST_STATIC_LIBRARY)
 
 # Include toolchain prebuilt modules if they exist.
diff --git a/target/board/generic/sepolicy/domain.te b/target/board/generic/sepolicy/domain.te
index 201fa86..5d5e4ac 100644
--- a/target/board/generic/sepolicy/domain.te
+++ b/target/board/generic/sepolicy/domain.te
@@ -1,4 +1,5 @@
 # For /sys/qemu_trace files in the emulator.
+allow domain sysfs_writable:dir search;
 allow domain sysfs_writable:file rw_file_perms;
 allow domain qemu_device:chr_file rw_file_perms;
 
diff --git a/target/board/generic/sepolicy/file.te b/target/board/generic/sepolicy/file.te
index 6fad80a..9227f80 100644
--- a/target/board/generic/sepolicy/file.te
+++ b/target/board/generic/sepolicy/file.te
@@ -1 +1,2 @@
 type qemud_socket, file_type;
+type sysfs_writable, fs_type, sysfs_type, mlstrustedobject;
diff --git a/target/board/generic/sepolicy/system_server.te b/target/board/generic/sepolicy/system_server.te
index d0fb79d..f9e277b 100644
--- a/target/board/generic/sepolicy/system_server.te
+++ b/target/board/generic/sepolicy/system_server.te
@@ -1 +1,3 @@
 unix_socket_connect(system_server, qemud, qemud)
+get_prop(system_server, opengles_prop)
+get_prop(system_server, radio_noril_prop)
diff --git a/target/board/generic_x86_arm/BoardConfig.mk b/target/board/generic_x86_arm/BoardConfig.mk
new file mode 100644
index 0000000..6e2573e
--- /dev/null
+++ b/target/board/generic_x86_arm/BoardConfig.mk
@@ -0,0 +1,60 @@
+# Copyright (C) 2016 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# Configuration for generic_x86 + arm libraries needed by binary translation.
+
+# The generic product target doesn't have any hardware-specific pieces.
+TARGET_NO_BOOTLOADER := true
+TARGET_NO_KERNEL := true
+TARGET_CPU_ABI := x86
+TARGET_ARCH := x86
+TARGET_ARCH_VARIANT := x86
+
+TARGET_2ND_ARCH := arm
+TARGET_2ND_CPU_ABI := armeabi-v7a
+TARGET_2ND_CPU_ABI2 := armeabi
+TARGET_2ND_ARCH_VARIANT := armv7-a
+TARGET_2ND_CPU_VARIANT := generic
+
+# Tell the build system this isn't a typical 64bit+32bit multilib configuration.
+TARGET_TRANSLATE_2ND_ARCH := true
+
+# no hardware camera
+USE_CAMERA_STUB := true
+
+# Enable dex-preoptimization to speed up the first boot sequence
+# of an SDK AVD. Note that this operation only works on Linux for now
+ifeq ($(HOST_OS),linux)
+  ifeq ($(WITH_DEXPREOPT),)
+    WITH_DEXPREOPT := true
+  endif
+endif
+
+# Build OpenGLES emulation host and guest libraries
+BUILD_EMULATOR_OPENGL := true
+
+# Build and enable the OpenGL ES View renderer. When running on the emulator,
+# the GLES renderer disables itself if host GL acceleration isn't available.
+USE_OPENGL_RENDERER := true
+
+TARGET_USERIMAGES_USE_EXT4 := true
+BOARD_SYSTEMIMAGE_PARTITION_SIZE := 1879048192  # 1.75 GB
+BOARD_USERDATAIMAGE_PARTITION_SIZE := 576716800
+BOARD_CACHEIMAGE_PARTITION_SIZE := 69206016
+BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE := ext4
+BOARD_FLASH_BLOCK_SIZE := 512
+TARGET_USERIMAGES_SPARSE_EXT_DISABLED := true
+
+BOARD_SEPOLICY_DIRS += build/target/board/generic/sepolicy
diff --git a/target/product/AndroidProducts.mk b/target/product/AndroidProducts.mk
index 69edc72..42447f1 100644
--- a/target/product/AndroidProducts.mk
+++ b/target/product/AndroidProducts.mk
@@ -53,6 +53,7 @@
     $(LOCAL_DIR)/aosp_arm.mk \
     $(LOCAL_DIR)/full.mk \
     $(LOCAL_DIR)/aosp_x86.mk \
+    $(LOCAL_DIR)/aosp_x86_arm.mk \
     $(LOCAL_DIR)/full_x86.mk \
     $(LOCAL_DIR)/aosp_mips.mk \
     $(LOCAL_DIR)/full_mips.mk \
diff --git a/target/product/aosp_x86_arm.mk b/target/product/aosp_x86_arm.mk
new file mode 100644
index 0000000..85a2cf8
--- /dev/null
+++ b/target/product/aosp_x86_arm.mk
@@ -0,0 +1,42 @@
+#
+# Copyright 2016 The Android Open-Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+
+# aosp_x86 with arm libraries needed by binary translation.
+
+include $(SRC_TARGET_DIR)/product/full_x86.mk
+
+# arm libraries. This is the list of shared libraries included in the NDK.
+# Their dependency libraries will be automatically pulled in.
+PRODUCT_PACKAGES += \
+  libandroid_arm \
+  libc_arm \
+  libdl_arm \
+  libEGL_arm \
+  libGLESv1_CM_arm \
+  libGLESv2_arm \
+  libGLESv3_arm \
+  libjnigraphics_arm \
+  liblog_arm \
+  libm_arm \
+  libmediandk_arm \
+  libOpenMAXAL_arm \
+  libstdc++_arm \
+  libOpenSLES_arm \
+  libz_arm \
+
+PRODUCT_NAME := aosp_x86_arm
+PRODUCT_DEVICE := generic_x86_arm
diff --git a/target/product/core.mk b/target/product/core.mk
index 2992dbd..065474d 100644
--- a/target/product/core.mk
+++ b/target/product/core.mk
@@ -34,7 +34,6 @@
     DownloadProviderUi \
     Email \
     ExactCalculator \
-    Exchange2 \
     ExternalStorageProvider \
     FusedLocation \
     InputDevices \
diff --git a/target/product/core_minimal.mk b/target/product/core_minimal.mk
index c39ab2c..36c27d3 100644
--- a/target/product/core_minimal.mk
+++ b/target/product/core_minimal.mk
@@ -63,6 +63,8 @@
     libfilterfw \
     libkeystore \
     libgatekeeper \
+    libwebviewchromium_loader \
+    libwebviewchromium_plat_support \
     libwilhelm \
     logd \
     make_ext4fs \
@@ -114,5 +116,8 @@
 PRODUCT_COPY_FILES += \
     system/core/rootdir/init.zygote32.rc:root/init.zygote32.rc
 
+PRODUCT_COPY_FILES += \
+    system/core/rootdir/etc/public.libraries.android.txt:system/etc/public.libraries.txt
+
 $(call inherit-product, $(SRC_TARGET_DIR)/product/runtime_libart.mk)
 $(call inherit-product, $(SRC_TARGET_DIR)/product/base.mk)
diff --git a/target/product/runtime_libart.mk b/target/product/runtime_libart.mk
index 94efe52..3782869 100644
--- a/target/product/runtime_libart.mk
+++ b/target/product/runtime_libart.mk
@@ -47,7 +47,8 @@
     libz \
     oatdump \
     okhttp \
-    patchoat
+    patchoat \
+    profman
 
 PRODUCT_DEFAULT_PROPERTY_OVERRIDES += \
     dalvik.vm.image-dex2oat-Xms=64m \
diff --git a/target/product/sdk_phone_arm64.mk b/target/product/sdk_phone_arm64.mk
index a0cf6c1..1d13b9e 100644
--- a/target/product/sdk_phone_arm64.mk
+++ b/target/product/sdk_phone_arm64.mk
@@ -24,7 +24,7 @@
 $(call inherit-product, $(SRC_TARGET_DIR)/board/generic_arm64/device.mk)
 
 # Overrides
-PRODUCT_BRAND := generic_arm64
+PRODUCT_BRAND := Android
 PRODUCT_NAME := sdk_phone_arm64
 PRODUCT_DEVICE := generic_arm64
 PRODUCT_MODEL := Android SDK built for arm64
diff --git a/target/product/sdk_phone_armv7.mk b/target/product/sdk_phone_armv7.mk
index aeb4940..a0fa049 100644
--- a/target/product/sdk_phone_armv7.mk
+++ b/target/product/sdk_phone_armv7.mk
@@ -17,6 +17,6 @@
 $(call inherit-product, $(SRC_TARGET_DIR)/product/sdk_base.mk)
 
 # Overrides
-PRODUCT_BRAND := generic
+PRODUCT_BRAND := Android
 PRODUCT_NAME := sdk_phone_armv7
 PRODUCT_DEVICE := generic
diff --git a/target/product/sdk_phone_mips.mk b/target/product/sdk_phone_mips.mk
index 818491f..d7217a0 100644
--- a/target/product/sdk_phone_mips.mk
+++ b/target/product/sdk_phone_mips.mk
@@ -22,7 +22,7 @@
 $(call inherit-product, $(SRC_TARGET_DIR)/product/sdk_base.mk)
 
 # Overrides
-PRODUCT_BRAND := generic_mips
+PRODUCT_BRAND := Android
 PRODUCT_NAME := sdk_phone_mips
 PRODUCT_DEVICE := generic_mips
 PRODUCT_MODEL := Android SDK for Mips
diff --git a/target/product/sdk_phone_mips64.mk b/target/product/sdk_phone_mips64.mk
index afdb2a8..8ddcb58 100644
--- a/target/product/sdk_phone_mips64.mk
+++ b/target/product/sdk_phone_mips64.mk
@@ -23,7 +23,7 @@
 $(call inherit-product, $(SRC_TARGET_DIR)/product/sdk_base.mk)
 
 # Overrides
-PRODUCT_BRAND := generic_mips64
+PRODUCT_BRAND := Android
 PRODUCT_NAME := sdk_phone_mips64
 PRODUCT_DEVICE := generic_mips64
 PRODUCT_MODEL := Android SDK built for mips64
diff --git a/target/product/sdk_phone_x86.mk b/target/product/sdk_phone_x86.mk
index 95c49ab..a58d26f 100644
--- a/target/product/sdk_phone_x86.mk
+++ b/target/product/sdk_phone_x86.mk
@@ -22,7 +22,7 @@
 $(call inherit-product, $(SRC_TARGET_DIR)/product/sdk_base.mk)
 
 # Overrides
-PRODUCT_BRAND := generic_x86
+PRODUCT_BRAND := Android
 PRODUCT_NAME := sdk_phone_x86
 PRODUCT_DEVICE := generic_x86
 PRODUCT_MODEL := Android SDK built for x86
diff --git a/target/product/sdk_phone_x86_64.mk b/target/product/sdk_phone_x86_64.mk
index 69e37af..c39b274 100644
--- a/target/product/sdk_phone_x86_64.mk
+++ b/target/product/sdk_phone_x86_64.mk
@@ -23,7 +23,7 @@
 $(call inherit-product, $(SRC_TARGET_DIR)/product/sdk_base.mk)
 
 # Overrides
-PRODUCT_BRAND := generic_x86_64
+PRODUCT_BRAND := Android
 PRODUCT_NAME := sdk_phone_x86_64
 PRODUCT_DEVICE := generic_x86_64
 PRODUCT_MODEL := Android SDK built for x86_64
diff --git a/tools/acp/Android.mk b/tools/acp/Android.mk
index eec9c9d..56aac14 100644
--- a/tools/acp/Android.mk
+++ b/tools/acp/Android.mk
@@ -11,7 +11,6 @@
 
 LOCAL_STATIC_LIBRARIES := libhost
 LOCAL_MODULE := acp
-LOCAL_ACP_UNAVAILABLE := true
 LOCAL_CXX_STL := none
 
 include $(BUILD_HOST_EXECUTABLE)
diff --git a/tools/apicheck/Android.mk b/tools/apicheck/Android.mk
index 1674a17..b547058 100644
--- a/tools/apicheck/Android.mk
+++ b/tools/apicheck/Android.mk
@@ -15,26 +15,15 @@
 ifneq ($(TARGET_BUILD_PDK),true)
 LOCAL_PATH := $(call my-dir)
 
-# We use copy-file-to-new-target so that the installed
-# script file's timestamp is at least as new as the
-# .jar file it wraps.
-
-#TODO(dbort): add a template to do this stuff; share with jx
-
 # the hat script
 # ============================================================
 include $(CLEAR_VARS)
 LOCAL_IS_HOST_MODULE := true
 LOCAL_MODULE_CLASS := EXECUTABLES
 LOCAL_MODULE := apicheck
-
-include $(BUILD_SYSTEM)/base_rules.mk
-
-$(LOCAL_BUILT_MODULE): $(HOST_OUT_JAVA_LIBRARIES)/doclava$(COMMON_JAVA_PACKAGE_SUFFIX)
-$(LOCAL_BUILT_MODULE): $(LOCAL_PATH)/etc/apicheck | $(ACP)
-	@echo "Copy: $(PRIVATE_MODULE) ($@)"
-	$(copy-file-to-new-target)
-	$(hide) chmod 755 $@
+LOCAL_SRC_FILES := etc/apicheck
+LOCAL_REQUIRED_MODULES := doclava
+include $(BUILD_PREBUILT)
 
 # Apicheck is now part of Doclava -- See external/doclava.
 endif
diff --git a/tools/brillo-clang-format b/tools/brillo-clang-format
new file mode 100644
index 0000000..a69d9d2
--- /dev/null
+++ b/tools/brillo-clang-format
@@ -0,0 +1,37 @@
+#
+# Copyright (C) 2016 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+### DO NOT COPY THIS FILE TO YOUR PROJECT. ###
+
+#
+# This is the .clang-format file used by all Brillo projects, conforming to the
+# style guide defined by Brillo. To use this file create a *relative* symlink in
+# your project pointing to this file, as this repository is expected to be
+# present in all manifests.
+#
+# See go/brillo-c++-style for details about the style guide.
+#
+
+BasedOnStyle: Google
+AllowShortFunctionsOnASingleLine: Inline
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+BinPackArguments: false
+BinPackParameters: false
+CommentPragmas: NOLINT:.*
+DerivePointerAlignment: false
+PointerAlignment: Left
+TabWidth: 2
diff --git a/tools/buildinfo.sh b/tools/buildinfo.sh
index ece5103..dcb66bf 100755
--- a/tools/buildinfo.sh
+++ b/tools/buildinfo.sh
@@ -23,6 +23,9 @@
 if [ -n "$BOARD_BUILD_SYSTEM_ROOT_IMAGE" ] ; then
   echo "ro.build.system_root_image=$BOARD_BUILD_SYSTEM_ROOT_IMAGE"
 fi
+if [ -n "$AB_OTA_UPDATER" ] ; then
+  echo "ro.build.ab_update=$AB_OTA_UPDATER"
+fi
 echo "ro.product.model=$PRODUCT_MODEL"
 echo "ro.product.brand=$PRODUCT_BRAND"
 echo "ro.product.name=$PRODUCT_NAME"
diff --git a/tools/fs_config/Android.mk b/tools/fs_config/Android.mk
index be140b5..fb4a0c4 100644
--- a/tools/fs_config/Android.mk
+++ b/tools/fs_config/Android.mk
@@ -23,20 +23,31 @@
 
 include $(BUILD_HOST_EXECUTABLE)
 
-# To Build the custom target binary for the host to generate the fs_config
-# override files. The executable is hard coded to include the
-# $(TARGET_ANDROID_FILESYSTEM_CONFIG_H) file if it exists.
-# Expectations:
-#    device/<vendor>/<device>/android_filesystem_config.h
-#        fills in struct fs_path_config android_device_dirs[] and
-#                 struct fs_path_config android_device_files[]
-#    device/<vendor>/<device>/device.mk
-#        PRODUCT_PACKAGES += fs_config_dirs fs_config_files
-
-# If not specified, check if default one to be found
+# One can override the default android_filesystem_config.h file in one of two ways:
+#
+# 1. The old way:
+#   To Build the custom target binary for the host to generate the fs_config
+#   override files. The executable is hard coded to include the
+#   $(TARGET_ANDROID_FILESYSTEM_CONFIG_H) file if it exists.
+#   Expectations:
+#      device/<vendor>/<device>/android_filesystem_config.h
+#          fills in struct fs_path_config android_device_dirs[] and
+#                   struct fs_path_config android_device_files[]
+#      device/<vendor>/<device>/device.mk
+#          PRODUCT_PACKAGES += fs_config_dirs fs_config_files
+#   If not specified, check if default one to be found
+#
+# 2. The new way:
+#   set TARGET_FS_CONFIG_GEN to contain a list of intermediate format files
+#   for generating the android_filesystem_config.h file.
+#
+# More information can be found in the README
 ANDROID_FS_CONFIG_H := android_filesystem_config.h
 
 ifneq ($(TARGET_ANDROID_FILESYSTEM_CONFIG_H),)
+ifneq ($(TARGET_FS_CONFIG_GEN),)
+$(error Cannot set TARGET_ANDROID_FILESYSTEM_CONFIG_H and TARGET_FS_CONFIG_GEN simultaneously)
+endif
 
 # One and only one file can be specified.
 ifneq ($(words $(TARGET_ANDROID_FILESYSTEM_CONFIG_H)),1)
@@ -51,20 +62,43 @@
 
 my_fs_config_h := $(TARGET_ANDROID_FILESYSTEM_CONFIG_H)
 else ifneq ($(wildcard $(TARGET_DEVICE_DIR)/$(ANDROID_FS_CONFIG_H)),)
+
+ifneq ($(TARGET_FS_CONFIG_GEN),)
+$(error Cannot provide $(TARGET_DEVICE_DIR)/$(ANDROID_FS_CONFIG_H) and set TARGET_FS_CONFIG_GEN simultaneously)
+endif
 my_fs_config_h := $(TARGET_DEVICE_DIR)/$(ANDROID_FS_CONFIG_H)
+
 else
 my_fs_config_h := $(LOCAL_PATH)/default/$(ANDROID_FS_CONFIG_H)
 endif
 
+##################################
 include $(CLEAR_VARS)
 LOCAL_SRC_FILES := fs_config_generate.c
 LOCAL_MODULE := fs_config_generate_$(TARGET_DEVICE)
+LOCAL_MODULE_CLASS := EXECUTABLES
 LOCAL_SHARED_LIBRARIES := libcutils
 LOCAL_CFLAGS := -Werror -Wno-error=\#warnings
+
+ifneq ($(TARGET_FS_CONFIG_GEN),)
+gen := $(local-generated-sources-dir)/$(ANDROID_FS_CONFIG_H)
+$(gen): PRIVATE_LOCAL_PATH := $(LOCAL_PATH)
+$(gen): PRIVATE_TARGET_FS_CONFIG_GEN := $(TARGET_FS_CONFIG_GEN)
+$(gen): PRIVATE_CUSTOM_TOOL = $(PRIVATE_LOCAL_PATH)/fs_config_generator.py $(PRIVATE_TARGET_FS_CONFIG_GEN) > $@
+$(gen): $(TARGET_FS_CONFIG_GEN) $(LOCAL_PATH)/fs_config_generator.py
+	$(transform-generated-source)
+
+LOCAL_GENERATED_SOURCES := $(gen)
+my_fs_config_h := $(gen)
+gen :=
+endif
+
 LOCAL_C_INCLUDES := $(dir $(my_fs_config_h))
+
 include $(BUILD_HOST_EXECUTABLE)
 fs_config_generate_bin := $(LOCAL_INSTALLED_MODULE)
 
+##################################
 # Generate the system/etc/fs_config_dirs binary file for the target
 # Add fs_config_dirs to PRODUCT_PACKAGES in the device make file to enable
 include $(CLEAR_VARS)
@@ -76,6 +110,7 @@
 	@mkdir -p $(dir $@)
 	$< -D -o $@
 
+##################################
 # Generate the system/etc/fs_config_files binary file for the target
 # Add fs_config_files to PRODUCT_PACKAGES in the device make file to enable
 include $(CLEAR_VARS)
diff --git a/tools/fs_config/README b/tools/fs_config/README
new file mode 100644
index 0000000..7eca4a3
--- /dev/null
+++ b/tools/fs_config/README
@@ -0,0 +1,119 @@
+ _____  _____  _____  _____  __  __  _____
+/  _  \/   __\/  _  \|  _  \/  \/  \/   __\
+|  _  <|   __||  _  ||  |  ||  \/  ||   __|
+\__|\_/\_____/\__|__/|_____/\__ \__/\_____/
+
+
+Generating the android_filesystem_config.h
+
+To generate the android_filesystem_config.h file, one can choose from
+one of two methods. The first method, is to declare
+TARGET_ANDROID_FILESYSTEM_CONFIG_H in the device BoardConfig.mk file. This
+variable can only have one item in it, and it is used directly as the
+android_filesystem_config.h header when building
+fs_config_generate_$(TARGET_DEVICE) which is used to generate fs_config_files
+and fs_config_dirs target executable.
+
+The limitation with this, is that it can only be set once, thus if the device
+has a make hierarchy, then each device needs its own file, and cannot share
+from a common source or that common source needs to include everything from
+both devices.
+
+The other way is to set TARGET_FS_CONFIG_GEN, which can be a list of
+intermediate fs configuration files. It is a build error on any one
+these conditions:
+ * Specify TARGET_FS_CONFIG_GEN and TARGET_ANDROID_FILESYSTEM_CONFIG_H
+ * Specify TARGET_FS_CONFIG_GEN and provide
+   $(TARGET_DEVICE_DIR)/android_filesystem_config.h
+
+The parsing of the config file follows the Python ConfigParser specification,
+with the sections and fields as defined below. There are two types of sections,
+both sections require all options to be specified. The first section type is
+the "caps" section.
+
+The "caps" section follows the following syntax:
+
+[path]
+mode: Octal file mode
+user: AID_<user>
+group: AID_<group>
+caps: cap*
+
+Where:
+
+[path]
+  The filesystem path to configure. A path ending in / is considered a dir,
+  else its a file.
+
+mode:
+  A valid octal file mode of at least 3 digits. If 3 is specified, it is
+  prefixed with a 0, else mode is used as is.
+
+user:
+  The exact, C define for a valid AID. Note custom AIDs can be defined in the
+  AID section documented below.
+
+group:
+  The exact, C define for a valid AID. Note custom AIDs can be defined in the
+  AID section documented below.
+
+caps:
+  The name as declared in
+  system/core/include/private/android_filesystem_capability.h without the
+  leading CAP_. Mixed case is allowed. Caps can also be the raw:
+   * binary (0b0101)
+   * octal (0455)
+   * int (42)
+   * hex (0xFF)
+  For multiple caps, just separate by whitespace.
+
+It is an error to specify multiple sections with the same [path]. Per the ini
+specifications enforced by Pythons ConfigParser.
+
+
+The next section type is the "AID" section, for specifying OEM specific AIDS.
+
+The AID section follows the following syntax:
+
+[AID_<name>]
+value: <number>
+
+Where:
+
+[AID_<name>]
+  The <name> can be any valid character for a #define identifier in C.
+
+value:
+  A valid C style number string. Hex, octal, binary and decimal are supported. See "caps"
+  above for more details on number formatting.
+
+It is an error to specify multiple sections with the same [AID_<name>]. Per the ini
+specifications enforced by Pythons ConfigParser. It is also an error to specify
+multiple sections with the same value option. It is also an error to specify a value
+that is outside of the inclusive OEM ranges:
+ * AID_OEM_RESERVED_START(2900) - AID_OEM_RESERVED_END(2999)
+ * AID_OEM_RESERVED_2_START(5000) - AID_OEM_RESERVED_2_END(5999)
+
+as defined by system/core/include/private/android_filesystem_config.h.
+
+Ordering within the TARGET_FS_CONFIG_GEN files is not relevant. The paths for files are sorted
+like so within their respective array definition:
+ * specified path before prefix match
+ ** ie foo before f*
+ * lexicographical less than before other
+ ** ie boo before foo
+
+Given these paths:
+
+paths=['ac', 'a', 'acd', 'an', 'a*', 'aa', 'ac*']
+
+The sort order would be:
+paths=['a', 'aa', 'ac', 'acd', 'an', 'ac*', 'a*']
+
+Thus the fs_config tools will match on specified paths before attempting prefix, and match on the
+longest matching prefix.
+
+The declared AIDS are sorted in ascending numerical order based on the option "value". The string
+representation of value is preserved. Both choices were made for maximum readability of the generated
+file and to line up files. Sync lines are placed with the source file as comments in the generated
+header file.
diff --git a/tools/fs_config/fs_config_generator.py b/tools/fs_config/fs_config_generator.py
new file mode 100755
index 0000000..482c2bc
--- /dev/null
+++ b/tools/fs_config/fs_config_generator.py
@@ -0,0 +1,279 @@
+#!/usr/bin/env python
+
+import ConfigParser
+import re
+import sys
+
+
+GENERATED = '''
+/*
+ * THIS IS AN AUTOGENERATED FILE! DO NOT MODIFY
+ */
+'''
+
+INCLUDE = '#include <private/android_filesystem_config.h>'
+
+DEFINE_NO_DIRS = '#define NO_ANDROID_FILESYSTEM_CONFIG_DEVICE_DIRS\n'
+DEFINE_NO_FILES = '#define NO_ANDROID_FILESYSTEM_CONFIG_DEVICE_FILES\n'
+
+DEFAULT_WARNING = '#warning No device-supplied android_filesystem_config.h, using empty default.'
+
+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'
+ENDIF = '#endif'
+
+OPEN_FILE_STRUCT = 'static const struct fs_path_config android_device_files[] = {'
+OPEN_DIR_STRUCT = 'static const struct fs_path_config android_device_dirs[] = {'
+CLOSE_FILE_STRUCT = '};'
+
+GENERIC_DEFINE = "#define %s\t%s"
+
+FILE_COMMENT = '// Defined in file: \"%s\"'
+
+# from system/core/include/private/android_filesystem_config.h
+AID_OEM_RESERVED_RANGES = [
+    (2900, 2999),
+    (5000, 5999),
+]
+
+
+AID_MATCH = re.compile('AID_[a-zA-Z]+')
+
+def handle_aid(file_name, section_name, config, aids, seen_aids):
+    value = config.get(section_name, 'value')
+
+    errmsg = '%s for: \"' + section_name + '" file: \"' + file_name + '\"'
+
+    if not value:
+        raise Exception(errmsg % 'Found specified but unset "value"')
+
+    v = convert_int(value)
+    if not v:
+        raise Exception(errmsg % ('Invalid "value", not a number, got: \"%s\"' % value))
+
+    # Values must be within OEM range
+    if not any(lower <= v <= upper for (lower, upper) in AID_OEM_RESERVED_RANGES):
+        s = '"value" not in valid range %s, got: %s'
+        s = s % (str(AID_OEM_RESERVED_RANGES), value)
+        raise Exception(errmsg % s)
+
+    # use the normalized int value in the dict and detect
+    # duplicate definitions of the same vallue
+    v = str(v)
+    if v in seen_aids[1]:
+        # map of value to aid name
+        a = seen_aids[1][v]
+
+        # aid name to file
+        f = seen_aids[0][a]
+
+        s = 'Duplicate AID value "%s" found on AID: "%s".' % (value, seen_aids[1][v])
+        s += ' Previous found in file: "%s."' % f
+        raise Exception(errmsg % s)
+
+    seen_aids[1][v] = section_name
+
+    # Append a tuple of (AID_*, base10(value), str(value))
+    # We keep the str version of value so we can print that out in the
+    # generated header so investigating parties can identify parts.
+    # We store the base10 value for sorting, so everything is ascending
+    # later.
+    aids.append((file_name, section_name, v, value))
+
+def convert_int(num):
+
+        try:
+            if num.startswith('0x'):
+                return int(num, 16)
+            elif num.startswith('0b'):
+                return int(num, 2)
+            elif num.startswith('0'):
+                return int(num, 8)
+            else:
+                return int(num, 10)
+        except ValueError:
+            pass
+        return None
+
+def handle_path(file_name, section_name, config, files, dirs):
+
+            mode = config.get(section_name, 'mode')
+            user = config.get(section_name, 'user')
+            group = config.get(section_name, 'group')
+            caps = config.get(section_name, 'caps')
+
+            errmsg = 'Found specified but unset option: \"%s" in file: \"' + file_name + '\"'
+
+            if not mode:
+                raise Exception(errmsg % 'mode')
+
+            if not user:
+                raise Exception(errmsg % 'user')
+
+            if not group:
+                raise Exception(errmsg % 'group')
+
+            if not caps:
+                raise Exception(errmsg % 'caps')
+
+            caps = caps.split()
+
+            tmp = []
+            for x in caps:
+                if convert_int(x):
+                    tmp.append('(' + x + ')')
+                else:
+                    tmp.append('(1ULL << CAP_' + x.upper() + ')')
+
+            caps = tmp
+
+            path = '"' + section_name + '"'
+
+            if len(mode) == 3:
+                mode = '0' + mode
+
+            try:
+                int(mode, 8)
+            except:
+                raise Exception('Mode must be octal characters, got: "' + mode + '"')
+
+            if len(mode) != 4:
+                raise Exception('Mode must be 3 or 4 characters, got: "' + mode + '"')
+
+
+            caps = '|'.join(caps)
+
+            x = [ mode, user, group, caps, section_name ]
+            if section_name[-1] == '/':
+                dirs.append((file_name, x))
+            else:
+                files.append((file_name, x))
+
+def handle_dup(name, file_name, section_name, seen):
+        if section_name in seen:
+            dups = '"' + seen[section_name] + '" and '
+            dups += file_name
+            raise Exception('Duplicate ' + name + ' "' + section_name + '" found in files: ' + dups)
+
+def parse(file_name, files, dirs, aids, seen_paths, seen_aids):
+
+        config = ConfigParser.ConfigParser()
+        config.read(file_name)
+
+        for s in config.sections():
+
+            if AID_MATCH.match(s) and config.has_option(s, 'value'):
+                handle_dup('AID', file_name, s, seen_aids[0])
+                seen_aids[0][s] = file_name
+                handle_aid(file_name, s, config, aids, seen_aids)
+            else:
+                handle_dup('path', file_name, s, seen_paths)
+                seen_paths[s] = file_name
+                handle_path(file_name, s, config, files, dirs)
+
+def generate(files, dirs, aids):
+    print GENERATED
+    print INCLUDE
+    print
+
+    are_dirs = len(dirs) > 0
+    are_files = len(files) > 0
+    are_aids = len(aids) > 0
+
+    if are_aids:
+        # sort on value of (file_name, name, value, strvalue)
+        aids.sort(key=lambda x: x[2])
+        for a in aids:
+            # use the preserved str value
+            print FILE_COMMENT % a[0]
+            print GENERIC_DEFINE % (a[1], a[2])
+
+        print
+
+    if not are_dirs:
+        print DEFINE_NO_DIRS
+
+    if not are_files:
+        print DEFINE_NO_FILES
+
+    if not are_files and not are_dirs and not are_aids:
+        print DEFAULT_WARNING
+        return
+
+    if are_files:
+        print OPEN_FILE_STRUCT
+        for tup in files:
+            f = tup[0]
+            c = tup[1]
+            c[4] = '"' + c[4] + '"'
+            c = '{ ' + '    ,'.join(c) + ' },'
+            print FILE_COMMENT % f
+            print '    ' + c
+
+        if not are_dirs:
+            print IFDEF_ANDROID_FILESYSTEM_CONFIG_DEVICE_DIRS
+            print '    ' + NO_ANDROID_FILESYSTEM_CONFIG_DEVICE_DIRS_ENTRY
+            print ENDIF
+        print CLOSE_FILE_STRUCT
+
+    if are_dirs:
+        print OPEN_DIR_STRUCT
+        for d in dirs:
+            f[4] = '"' + f[4] + '"'
+            d = '{ ' + '    ,'.join(d) + ' },'
+            print '    ' + d
+
+        print CLOSE_FILE_STRUCT
+
+def file_key(x):
+
+    # Wrapper class for custom prefix matching strings
+    class S(object):
+        def __init__(self, str):
+
+            self.orig = str
+            self.is_prefix = str[-1] == '*'
+            if self.is_prefix:
+                self.str = str[:-1]
+            else:
+                self.str = str
+
+        def __lt__(self, other):
+
+            # if were both suffixed the smallest string
+            # is 'bigger'
+            if self.is_prefix and other.is_prefix:
+                b = len(self.str) > len(other.str)
+            # If I am an the suffix match, im bigger
+            elif self.is_prefix:
+                b = False
+            # If other is the suffix match, he's bigger
+            elif other.is_prefix:
+                b = True
+            # Alphabetical
+            else:
+                b = self.str < other.str
+            return b
+
+    return S(x[4])
+
+def main():
+
+    files = []
+    dirs = []
+    aids = []
+    seen_paths = {}
+
+    # (name to file, value to aid)
+    seen_aids = ({}, {})
+
+    for x in sys.argv[1:]:
+        parse(x, files, dirs, aids, seen_paths, seen_aids)
+
+    files.sort(key= lambda x: file_key(x[1]))
+    generate(files, dirs, aids)
+
+if __name__ == '__main__':
+    main()
diff --git a/tools/makeparallel/makeparallel.cpp b/tools/makeparallel/makeparallel.cpp
index 3c39846..c70fa9a 100644
--- a/tools/makeparallel/makeparallel.cpp
+++ b/tools/makeparallel/makeparallel.cpp
@@ -26,6 +26,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
+#include <sys/resource.h>
 #include <sys/time.h>
 #include <sys/types.h>
 #include <sys/wait.h>
@@ -343,6 +344,15 @@
     // child
     unsetenv("MAKEFLAGS");
     unsetenv("MAKELEVEL");
+
+    // make 3.81 sets the stack ulimit to unlimited, which may cause problems
+    // for child processes
+    struct rlimit rlim{};
+    if (getrlimit(RLIMIT_STACK, &rlim) == 0 && rlim.rlim_cur == RLIM_INFINITY) {
+      rlim.rlim_cur = 8*1024*1024;
+      setrlimit(RLIMIT_STACK, &rlim);
+    }
+
     int ret = execvp(path, args.data());
     if (ret < 0) {
       error(errno, errno, "exec %s failed", path);
diff --git a/tools/releasetools/add_img_to_target_files.py b/tools/releasetools/add_img_to_target_files.py
index 7cb9072..f98a281 100755
--- a/tools/releasetools/add_img_to_target_files.py
+++ b/tools/releasetools/add_img_to_target_files.py
@@ -31,7 +31,9 @@
 import datetime
 import errno
 import os
+import shlex
 import shutil
+import subprocess
 import tempfile
 import zipfile
 
@@ -48,12 +50,12 @@
 
 def AddSystem(output_zip, prefix="IMAGES/", recovery_img=None, boot_img=None):
   """Turn the contents of SYSTEM into a system image and store it in
-  output_zip."""
+  output_zip. Returns the name of the system image file."""
 
   prebuilt_path = os.path.join(OPTIONS.input_tmp, prefix, "system.img")
   if os.path.exists(prebuilt_path):
     print "system.img already exists in %s, no need to rebuild..." % (prefix,)
-    return
+    return prebuilt_path
 
   def output_sink(fn, data):
     ofile = open(os.path.join(OPTIONS.input_tmp, "SYSTEM", fn), "w")
@@ -68,8 +70,23 @@
   block_list = common.MakeTempFile(prefix="system-blocklist-", suffix=".map")
   imgname = BuildSystem(OPTIONS.input_tmp, OPTIONS.info_dict,
                         block_list=block_list)
+
+  # If requested, calculate and add dm-verity integrity hashes and
+  # metadata to system.img.
+  if OPTIONS.info_dict.get("board_bvb_enable", None) == "true":
+    bvbtool = os.getenv('BVBTOOL') or "bvbtool"
+    cmd = [bvbtool, "add_image_hashes", "--image", imgname]
+    args = OPTIONS.info_dict.get("board_bvb_add_image_hashes_args", None)
+    if args and args.strip():
+      cmd.extend(shlex.split(args))
+    p = common.Run(cmd, stdout=subprocess.PIPE)
+    p.communicate()
+    assert p.returncode == 0, "bvbtool add_image_hashes of %s image failed" % (
+      os.path.basename(OPTIONS.input_tmp),)
+
   common.ZipWrite(output_zip, imgname, prefix + "system.img")
   common.ZipWrite(output_zip, block_list, prefix + "system.map")
+  return imgname
 
 
 def BuildSystem(input_dir, info_dict, block_list=None):
@@ -211,6 +228,35 @@
   shutil.rmtree(temp_dir)
 
 
+def AddPartitionTable(output_zip, prefix="IMAGES/"):
+  """Create a partition table image and store it in output_zip."""
+
+  _, img_file_name = tempfile.mkstemp()
+  _, bpt_file_name = tempfile.mkstemp()
+
+  # use BPTTOOL from environ, or "bpttool" if empty or not set.
+  bpttool = os.getenv("BPTTOOL") or "bpttool"
+  cmd = [bpttool, "make_table", "--output_json", bpt_file_name,
+         "--output_gpt", img_file_name]
+  input_files_str = OPTIONS.info_dict["board_bpt_input_files"]
+  input_files = input_files_str.split(" ")
+  for i in input_files:
+    cmd.extend(["--input", i])
+  disk_size = OPTIONS.info_dict.get("board_bpt_disk_size")
+  if disk_size:
+    cmd.extend(["--disk_size", disk_size])
+  args = OPTIONS.info_dict.get("board_bpt_make_table_args")
+  if args:
+    cmd.extend(shlex.split(args))
+
+  p = common.Run(cmd, stdout=subprocess.PIPE)
+  p.communicate()
+  assert p.returncode == 0, "bpttool make_table failed"
+
+  common.ZipWrite(output_zip, img_file_name, prefix + "partition-table.img")
+  common.ZipWrite(output_zip, bpt_file_name, prefix + "partition-table.bpt")
+
+
 def AddCache(output_zip, prefix="IMAGES/"):
   """Create an empty cache image and store it in output_zip."""
 
@@ -275,23 +321,40 @@
                                compression=zipfile.ZIP_DEFLATED)
 
   has_recovery = (OPTIONS.info_dict.get("no_recovery") != "true")
+  system_root_image = (OPTIONS.info_dict.get("system_root_image", None) == "true")
+  board_bvb_enable = (OPTIONS.info_dict.get("board_bvb_enable", None) == "true")
+
+  # Brillo Verified Boot is incompatible with certain
+  # configurations. Explicitly check for these.
+  if board_bvb_enable:
+    assert not has_recovery, "has_recovery incompatible with bvb"
+    assert not system_root_image, "system_root_image incompatible with bvb"
+    assert not OPTIONS.rebuild_recovery, "rebuild_recovery incompatible with bvb"
+    assert not has_vendor, "VENDOR images currently incompatible with bvb"
 
   def banner(s):
     print "\n\n++++ " + s + " ++++\n\n"
 
-  banner("boot")
   prebuilt_path = os.path.join(OPTIONS.input_tmp, "IMAGES", "boot.img")
   boot_image = None
   if os.path.exists(prebuilt_path):
+    banner("boot")
     print "boot.img already exists in IMAGES/, no need to rebuild..."
     if OPTIONS.rebuild_recovery:
       boot_image = common.GetBootableImage(
           "IMAGES/boot.img", "boot.img", OPTIONS.input_tmp, "BOOT")
   else:
-    boot_image = common.GetBootableImage(
+    if board_bvb_enable:
+      # With Brillo Verified Boot, we need to build system.img before
+      # boot.img since the latter includes the dm-verity root hash and
+      # salt for the former.
+      pass
+    else:
+      banner("boot")
+      boot_image = common.GetBootableImage(
         "IMAGES/boot.img", "boot.img", OPTIONS.input_tmp, "BOOT")
-    if boot_image:
-      boot_image.AddToZip(output_zip)
+      if boot_image:
+        boot_image.AddToZip(output_zip)
 
   recovery_image = None
   if has_recovery:
@@ -310,7 +373,17 @@
         recovery_image.AddToZip(output_zip)
 
   banner("system")
-  AddSystem(output_zip, recovery_img=recovery_image, boot_img=boot_image)
+  system_img_path = AddSystem(
+    output_zip, recovery_img=recovery_image, boot_img=boot_image)
+  if OPTIONS.info_dict.get("board_bvb_enable", None) == "true":
+    # If we're using Brillo Verified Boot, we can now build boot.img
+    # given that we have system.img.
+    banner("boot")
+    boot_image = common.GetBootableImage(
+      "IMAGES/boot.img", "boot.img", OPTIONS.input_tmp, "BOOT",
+      system_img_path=system_img_path)
+    if boot_image:
+      boot_image.AddToZip(output_zip)
   if has_vendor:
     banner("vendor")
     AddVendor(output_zip)
@@ -318,6 +391,9 @@
   AddUserdata(output_zip)
   banner("cache")
   AddCache(output_zip)
+  if OPTIONS.info_dict.get("board_bpt_enable", None) == "true":
+    banner("partition-table")
+    AddPartitionTable(output_zip)
 
   # For devices using A/B update, copy over images from RADIO/ to IMAGES/ and
   # make sure we have all the needed images ready under IMAGES/.
diff --git a/tools/releasetools/blockimgdiff.py b/tools/releasetools/blockimgdiff.py
index 25d2743..d49112f 100644
--- a/tools/releasetools/blockimgdiff.py
+++ b/tools/releasetools/blockimgdiff.py
@@ -272,6 +272,8 @@
     self.src_basenames = {}
     self.src_numpatterns = {}
     self._max_stashed_size = 0
+    self.touched_src_ranges = RangeSet()
+    self.touched_src_sha1 = None
 
     assert version in (1, 2, 3, 4)
 
@@ -373,6 +375,7 @@
           else:
             stashes[sh] = 1
             stashed_blocks += sr.size()
+            self.touched_src_ranges = self.touched_src_ranges.union(sr)
             out.append("stash %s %s\n" % (sh, sr.to_string_raw()))
 
       if stashed_blocks > max_stashed_blocks:
@@ -479,6 +482,9 @@
               if temp_stash_usage > max_stashed_blocks:
                 max_stashed_blocks = temp_stash_usage
 
+            self.touched_src_ranges = self.touched_src_ranges.union(
+                xf.src_ranges)
+
             out.append("%s %s %s %s\n" % (
                 xf.style,
                 self.HashBlocks(self.tgt, xf.tgt_ranges),
@@ -502,6 +508,9 @@
             if temp_stash_usage > max_stashed_blocks:
               max_stashed_blocks = temp_stash_usage
 
+          self.touched_src_ranges = self.touched_src_ranges.union(
+              xf.src_ranges)
+
           out.append("%s %d %d %s %s %s %s\n" % (
               xf.style,
               xf.patch_start, xf.patch_len,
@@ -537,6 +546,10 @@
                    self.tgt.blocksize, max_allowed, cache_size,
                    stash_threshold)
 
+    if self.version >= 3:
+      self.touched_src_sha1 = self.HashBlocks(
+          self.src, self.touched_src_ranges)
+
     # Zero out extended blocks as a workaround for bug 20881595.
     if self.tgt.extended:
       out.append("zero %s\n" % (self.tgt.extended.to_string_raw(),))
@@ -771,7 +784,10 @@
           x = x.subtract(sr)
 
       for s, e in x:
-        for i in range(s, e):
+        # Source image could be larger. Don't check the blocks that are in the
+        # source image only. Since they are not in 'touched', and won't ever
+        # be touched.
+        for i in range(s, min(e, self.tgt.total_blocks)):
           assert touched[i] == 0
 
       # Check that the output blocks for this transfer haven't yet
diff --git a/tools/releasetools/build_image.py b/tools/releasetools/build_image.py
index e248860..4ff8c43 100755
--- a/tools/releasetools/build_image.py
+++ b/tools/releasetools/build_image.py
@@ -15,9 +15,9 @@
 # limitations under the License.
 
 """
-Build image output_image_file from input_directory and properties_file.
+Build image output_image_file from input_directory, properties_file, and target_out_dir
 
-Usage:  build_image input_directory properties_file output_image_file
+Usage:  build_image input_directory properties_file output_image_file target_out_dir
 
 """
 import os
diff --git a/tools/releasetools/common.py b/tools/releasetools/common.py
index cde49cd..92af547 100644
--- a/tools/releasetools/common.py
+++ b/tools/releasetools/common.py
@@ -414,6 +414,10 @@
   if args and args.strip():
     cmd.extend(shlex.split(args))
 
+  args = info_dict.get("mkbootimg_version_args", None)
+  if args and args.strip():
+    cmd.extend(shlex.split(args))
+
   if has_ramdisk:
     cmd.extend(["--ramdisk", ramdisk_img.name])
 
@@ -469,8 +473,114 @@
   return data
 
 
+def _BuildBvbBootableImage(sourcedir, fs_config_file, system_img_path,
+                           info_dict=None, has_ramdisk=False):
+  """Build a bootable image compatible with Brillo Verified Boot from the
+  specified sourcedir.
+
+  Take a kernel, cmdline, system image path, and optionally a ramdisk
+  directory from the input (in 'sourcedir'), and turn them into a boot
+  image.  Return the image data, or None if sourcedir does not appear
+  to contains files for building the requested image.
+  """
+
+  def make_ramdisk():
+    ramdisk_img = tempfile.NamedTemporaryFile()
+
+    if os.access(fs_config_file, os.F_OK):
+      cmd = ["mkbootfs", "-f", fs_config_file,
+             os.path.join(sourcedir, "RAMDISK")]
+    else:
+      cmd = ["mkbootfs", os.path.join(sourcedir, "RAMDISK")]
+    p1 = Run(cmd, stdout=subprocess.PIPE)
+    p2 = Run(["minigzip"], stdin=p1.stdout, stdout=ramdisk_img.file.fileno())
+
+    p2.wait()
+    p1.wait()
+    assert p1.returncode == 0, "mkbootfs of %s ramdisk failed" % (sourcedir,)
+    assert p2.returncode == 0, "minigzip of %s ramdisk failed" % (sourcedir,)
+
+    return ramdisk_img
+
+  if not os.access(os.path.join(sourcedir, "kernel"), os.F_OK):
+    return None
+
+  if has_ramdisk and not os.access(os.path.join(sourcedir, "RAMDISK"), os.F_OK):
+    return None
+
+  if info_dict is None:
+    info_dict = OPTIONS.info_dict
+
+  img = tempfile.NamedTemporaryFile()
+
+  if has_ramdisk:
+    ramdisk_img = make_ramdisk()
+
+  # use BVBTOOL from environ, or "bvbtool" if empty or not set
+  bvbtool = os.getenv('BVBTOOL') or "bvbtool"
+
+  # First, create boot.img.
+  cmd = [bvbtool, "make_boot_image"]
+
+  fn = os.path.join(sourcedir, "cmdline")
+  if os.access(fn, os.F_OK):
+    cmd.append("--kernel_cmdline")
+    cmd.append(open(fn).read().rstrip("\n"))
+
+  cmd.extend(["--kernel", os.path.join(sourcedir, "kernel")])
+
+  if has_ramdisk:
+    cmd.extend(["--initrd", ramdisk_img.name])
+
+  cmd.extend(["--rootfs_with_hashes", system_img_path])
+
+  args = info_dict.get("board_bvb_make_boot_image_args", None)
+  if args and args.strip():
+    cmd.extend(shlex.split(args))
+
+  rollback_index = info_dict.get("board_bvb_rollback_index", None)
+  if rollback_index and rollback_index.strip():
+    cmd.extend(["--rollback_index", rollback_index.strip()])
+
+  cmd.extend(["--output", img.name])
+
+  p = Run(cmd, stdout=subprocess.PIPE)
+  p.communicate()
+  assert p.returncode == 0, "bvbtool make_boot_image of %s image failed" % (
+      os.path.basename(sourcedir),)
+
+  # Then, sign boot.img.
+  cmd = [bvbtool, "sign_boot_image", "--image", img.name]
+
+  algorithm = info_dict.get("board_bvb_algorithm", None)
+  key_path = info_dict.get("board_bvb_key_path", None)
+  if algorithm and algorithm.strip() and key_path and key_path.strip():
+    cmd.extend(["--algorithm", algorithm, "--key", key_path])
+  else:
+    cmd.extend(["--algorithm", "SHA256_RSA4096"])
+    cmd.extend(["--key", "system/bvb/test/testkey_rsa4096.pem"])
+
+  args = info_dict.get("board_bvb_sign_boot_image_args", None)
+  if args and args.strip():
+    cmd.extend(shlex.split(args))
+
+  p = Run(cmd, stdout=subprocess.PIPE)
+  p.communicate()
+  assert p.returncode == 0, "bvbtool sign_boot_image of %s image failed" % (
+      os.path.basename(sourcedir),)
+
+  img.seek(os.SEEK_SET, 0)
+  data = img.read()
+
+  if has_ramdisk:
+    ramdisk_img.close()
+  img.close()
+
+  return data
+
+
 def GetBootableImage(name, prebuilt_name, unpack_dir, tree_subdir,
-                     info_dict=None):
+                     info_dict=None, system_img_path=None):
   """Return a File object with the desired bootable image.
 
   Look for it in 'unpack_dir'/BOOTABLE_IMAGES under the name 'prebuilt_name',
@@ -500,9 +610,14 @@
                  info_dict.get("recovery_as_boot") == "true")
 
   fs_config = "META/" + tree_subdir.lower() + "_filesystem_config.txt"
-  data = _BuildBootableImage(os.path.join(unpack_dir, tree_subdir),
-                             os.path.join(unpack_dir, fs_config),
-                             info_dict, has_ramdisk)
+  if info_dict.get("board_bvb_enable", None) == "true":
+    data = _BuildBvbBootableImage(os.path.join(unpack_dir, tree_subdir),
+                                  os.path.join(unpack_dir, fs_config),
+                                  system_img_path, info_dict, has_ramdisk)
+  else:
+    data = _BuildBootableImage(os.path.join(unpack_dir, tree_subdir),
+                               os.path.join(unpack_dir, fs_config),
+                               info_dict, has_ramdisk)
   if data:
     return File(name, data)
   return None
@@ -1310,6 +1425,8 @@
     self.path = os.path.join(tmpdir, partition)
     b.Compute(self.path)
     self._required_cache = b.max_stashed_size
+    self.touched_src_ranges = b.touched_src_ranges
+    self.touched_src_sha1 = b.touched_src_sha1
 
     if src is None:
       _, self.device = GetTypeAndDevice("/" + partition, OPTIONS.info_dict)
@@ -1331,7 +1448,8 @@
     if progress:
       script.ShowProgress(progress, 0)
     self._WriteUpdate(script, output_zip)
-    self._WritePostInstallVerifyScript(script)
+    if OPTIONS.verify:
+      self._WritePostInstallVerifyScript(script)
 
   def WriteStrictVerifyScript(self, script):
     """Verify all the blocks in the care_map, including clobbered blocks.
@@ -1352,26 +1470,40 @@
                        self.device))
     script.AppendExtra("")
 
-  def WriteVerifyScript(self, script):
+  def WriteVerifyScript(self, script, touched_blocks_only=False):
     partition = self.partition
+
+    # full OTA
     if not self.src:
       script.Print("Image %s will be patched unconditionally." % (partition,))
+
+    # incremental OTA
     else:
-      ranges = self.src.care_map.subtract(self.src.clobbered_blocks)
+      if touched_blocks_only and self.version >= 3:
+        ranges = self.touched_src_ranges
+        expected_sha1 = self.touched_src_sha1
+      else:
+        ranges = self.src.care_map.subtract(self.src.clobbered_blocks)
+        expected_sha1 = self.src.TotalSha1()
+
+      # No blocks to be checked, skipping.
+      if not ranges:
+        return
+
       ranges_str = ranges.to_string_raw()
       if self.version >= 4:
         script.AppendExtra(('if (range_sha1("%s", "%s") == "%s" || '
                             'block_image_verify("%s", '
                             'package_extract_file("%s.transfer.list"), '
                             '"%s.new.dat", "%s.patch.dat")) then') % (
-                            self.device, ranges_str, self.src.TotalSha1(),
+                            self.device, ranges_str, expected_sha1,
                             self.device, partition, partition, partition))
       elif self.version == 3:
         script.AppendExtra(('if (range_sha1("%s", "%s") == "%s" || '
                             'block_image_verify("%s", '
                             'package_extract_file("%s.transfer.list"), '
                             '"%s.new.dat", "%s.patch.dat")) then') % (
-                            self.device, ranges_str, self.src.TotalSha1(),
+                            self.device, ranges_str, expected_sha1,
                             self.device, partition, partition, partition))
       else:
         script.AppendExtra('if range_sha1("%s", "%s") == "%s" then' % (
@@ -1455,7 +1587,8 @@
 
     call = ('block_image_update("{device}", '
             'package_extract_file("{partition}.transfer.list"), '
-            '"{partition}.new.dat", "{partition}.patch.dat");\n'.format(
+            '"{partition}.new.dat", "{partition}.patch.dat") ||\n'
+            '    abort("Failed to update {partition} image.");'.format(
                 device=self.device, partition=self.partition))
     script.AppendExtra(script.WordWrap(call))
 
diff --git a/tools/releasetools/edify_generator.py b/tools/releasetools/edify_generator.py
index f57360a..ecdc167 100644
--- a/tools/releasetools/edify_generator.py
+++ b/tools/releasetools/edify_generator.py
@@ -83,11 +83,17 @@
       raise ValueError("must specify an OEM property")
     if not value:
       raise ValueError("must specify the OEM value")
-    cmd = ('file_getprop("/oem/oem.prop", "{name}") == "{value}" || '
-           'abort("This package expects the value \\"{value}\\" for '
-           '\\"{name}\\" on the OEM partition; this has value \\"" + '
-           'file_getprop("/oem/oem.prop", "{name}") + "\\".");').format(
-               name=name, value=value)
+    if common.OPTIONS.oem_no_mount:
+      cmd = ('getprop("{name}") == "{value}" || '
+             'abort("This package expects the value \\"{value}\\" for '
+             '\\"{name}\\"; this has value \\"" + '
+             'getprop("{name}") + "\\".");').format(name=name, value=value)
+    else:
+      cmd = ('file_getprop("/oem/oem.prop", "{name}") == "{value}" || '
+             'abort("This package expects the value \\"{value}\\" for '
+             '\\"{name}\\" on the OEM partition; this has value \\"" + '
+             'file_getprop("/oem/oem.prop", "{name}") + "\\".");').format(
+                 name=name, value=value)
     self.script.append(cmd)
 
   def AssertSomeFingerprint(self, *fp):
@@ -112,6 +118,17 @@
                " or ".join(fp))
     self.script.append(cmd)
 
+  def AssertFingerprintOrThumbprint(self, fp, tp):
+    """Assert that the current recovery build fingerprint is fp, or thumbprint
+       is tp."""
+    cmd = ('getprop("ro.build.fingerprint") == "{fp}" ||\n'
+           '    getprop("ro.build.thumbprint") == "{tp}" ||\n'
+           '    abort("Package expects build fingerprint of {fp} or '
+           'thumbprint of {tp}; this device has a fingerprint of " '
+           '+ getprop("ro.build.fingerprint") and a thumbprint of " '
+           '+ getprop("ro.build.thumbprint") + ".");').format(fp=fp, tp=tp)
+    self.script.append(cmd)
+
   def AssertOlderBuild(self, timestamp, timestamp_text):
     """Assert that the build on the device is older (or the same as)
     the given timestamp."""
diff --git a/tools/releasetools/ota_from_target_files.py b/tools/releasetools/ota_from_target_files.py
index bea33a3..582412a 100755
--- a/tools/releasetools/ota_from_target_files.py
+++ b/tools/releasetools/ota_from_target_files.py
@@ -54,6 +54,12 @@
       Use the file to specify the expected OEM-specific properties
       on the OEM partition of the intended device.
 
+  --oem_no_mount
+      For devices with OEM-specific properties but without an OEM partition,
+      do not mount the OEM partition in the updater-script. This should be
+      very rarely used, since it's expected to have a dedicated OEM partition
+      for OEM-specific properties. Only meaningful when -o is specified.
+
   -w  (--wipe_user_data)
       Generate an OTA package that will wipe the user data partition
       when installed.
@@ -63,6 +69,14 @@
       the build scripts (used for developer OTA packages which
       legitimately need to go back and forth).
 
+  --downgrade
+      Intentionally generate an incremental OTA that updates from a newer
+      build to an older one (based on timestamp comparison). "post-timestamp"
+      will be replaced by "ota-downgrade=yes" in the metadata file. A data
+      wipe will always be enforced, so "ota-wipe=yes" will also be included in
+      the metadata file. The update-binary in the source build will be used in
+      the OTA package, unless --binary flag is specified.
+
   -e  (--extra_script)  <file>
       Insert the contents of file at the end of the update script.
 
@@ -126,6 +140,7 @@
 OPTIONS.patch_threshold = 0.95
 OPTIONS.wipe_user_data = False
 OPTIONS.omit_prereq = False
+OPTIONS.downgrade = False
 OPTIONS.extra_script = None
 OPTIONS.aslr_mode = True
 OPTIONS.worker_threads = multiprocessing.cpu_count() // 2
@@ -136,6 +151,7 @@
 OPTIONS.block_based = False
 OPTIONS.updater_binary = None
 OPTIONS.oem_source = None
+OPTIONS.oem_no_mount = False
 OPTIONS.fallback_to_full = True
 OPTIONS.full_radio = False
 OPTIONS.full_bootloader = False
@@ -423,7 +439,7 @@
 
 def AppendAssertions(script, info_dict, oem_dict=None):
   oem_props = info_dict.get("oem_fingerprint_properties")
-  if oem_props is None or len(oem_props) == 0:
+  if not oem_props:
     device = GetBuildProp("ro.product.device", info_dict)
     script.AssertDevice(device)
   else:
@@ -512,19 +528,20 @@
   # in the target build.
   script = edify_generator.EdifyGenerator(3, OPTIONS.info_dict)
 
-  oem_props = OPTIONS.info_dict.get("oem_fingerprint_properties")
   recovery_mount_options = OPTIONS.info_dict.get("recovery_mount_options")
+  oem_props = OPTIONS.info_dict.get("oem_fingerprint_properties")
   oem_dict = None
-  if oem_props is not None and len(oem_props) > 0:
+  if oem_props:
     if OPTIONS.oem_source is None:
       raise common.ExternalError("OEM source required for this build")
-    script.Mount("/oem", recovery_mount_options)
+    if not OPTIONS.oem_no_mount:
+      script.Mount("/oem", recovery_mount_options)
     oem_dict = common.LoadDictionaryFromLines(
         open(OPTIONS.oem_source).readlines())
 
+  target_fp = CalculateFingerprint(oem_props, oem_dict, OPTIONS.info_dict)
   metadata = {
-      "post-build": CalculateFingerprint(oem_props, oem_dict,
-                                         OPTIONS.info_dict),
+      "post-build": target_fp,
       "pre-device": GetOemProperty("ro.product.device", oem_props, oem_dict,
                                    OPTIONS.info_dict),
       "post-timestamp": GetBuildProp("ro.build.date.utc", OPTIONS.info_dict),
@@ -593,8 +610,7 @@
 """ % bcb_dev)
 
   # Dump fingerprints
-  script.Print("Target: %s" % CalculateFingerprint(
-      oem_props, oem_dict, OPTIONS.info_dict))
+  script.Print("Target: %s" % target_fp)
 
   device_specific.FullOTA_InstallBegin()
 
@@ -698,8 +714,9 @@
 endif;
 endif;
 """ % bcb_dev)
-  script.AddToZip(input_zip, output_zip, input_path=OPTIONS.updater_binary)
 
+  script.SetProgress(1)
+  script.AddToZip(input_zip, output_zip, input_path=OPTIONS.updater_binary)
   metadata["ota-required-cache"] = str(script.required_cache)
   WriteMetadata(metadata, output_zip)
 
@@ -755,31 +772,52 @@
   target_version = OPTIONS.target_info_dict["recovery_api_version"]
 
   if source_version == 0:
-    print ("WARNING: generating edify script for a source that "
-           "can't install it.")
+    print("WARNING: generating edify script for a source that "
+          "can't install it.")
   script = edify_generator.EdifyGenerator(
       source_version, OPTIONS.target_info_dict,
       fstab=OPTIONS.source_info_dict["fstab"])
 
-  oem_props = OPTIONS.info_dict.get("oem_fingerprint_properties")
   recovery_mount_options = OPTIONS.source_info_dict.get(
       "recovery_mount_options")
+  source_oem_props = OPTIONS.source_info_dict.get("oem_fingerprint_properties")
+  target_oem_props = OPTIONS.target_info_dict.get("oem_fingerprint_properties")
   oem_dict = None
-  if oem_props is not None and len(oem_props) > 0:
+  if source_oem_props or target_oem_props:
     if OPTIONS.oem_source is None:
       raise common.ExternalError("OEM source required for this build")
-    script.Mount("/oem", recovery_mount_options)
+    if not OPTIONS.oem_no_mount:
+      script.Mount("/oem", recovery_mount_options)
     oem_dict = common.LoadDictionaryFromLines(
         open(OPTIONS.oem_source).readlines())
 
   metadata = {
-      "pre-device": GetOemProperty("ro.product.device", oem_props, oem_dict,
-                                   OPTIONS.source_info_dict),
-      "post-timestamp": GetBuildProp("ro.build.date.utc",
-                                     OPTIONS.target_info_dict),
+      "pre-device": GetOemProperty("ro.product.device", source_oem_props,
+                                   oem_dict, OPTIONS.source_info_dict),
       "ota-type": "BLOCK",
   }
 
+  post_timestamp = GetBuildProp("ro.build.date.utc", OPTIONS.target_info_dict)
+  pre_timestamp = GetBuildProp("ro.build.date.utc", OPTIONS.source_info_dict)
+  is_downgrade = long(post_timestamp) < long(pre_timestamp)
+
+  if OPTIONS.downgrade:
+    metadata["ota-downgrade"] = "yes"
+    if not is_downgrade:
+      raise RuntimeError("--downgrade specified but no downgrade detected: "
+                         "pre: %s, post: %s" % (pre_timestamp, post_timestamp))
+  else:
+    if is_downgrade:
+      # Non-fatal here to allow generating such a package which may require
+      # manual work to adjust the post-timestamp. A legit use case is that we
+      # cut a new build C (after having A and B), but want to enfore the
+      # update path of A -> C -> B. Specifying --downgrade may not help since
+      # that would enforce a data wipe for C -> B update.
+      print("\nWARNING: downgrade detected: pre: %s, post: %s.\n"
+            "The package may not be deployed properly. "
+            "Try --downgrade?\n" % (pre_timestamp, post_timestamp))
+    metadata["post-timestamp"] = post_timestamp
+
   device_specific = common.DeviceSpecificParams(
       source_zip=source_zip,
       source_version=source_version,
@@ -790,9 +828,9 @@
       metadata=metadata,
       info_dict=OPTIONS.source_info_dict)
 
-  source_fp = CalculateFingerprint(oem_props, oem_dict,
+  source_fp = CalculateFingerprint(source_oem_props, oem_dict,
                                    OPTIONS.source_info_dict)
-  target_fp = CalculateFingerprint(oem_props, oem_dict,
+  target_fp = CalculateFingerprint(target_oem_props, oem_dict,
                                    OPTIONS.target_info_dict)
   metadata["pre-build"] = source_fp
   metadata["post-build"] = target_fp
@@ -888,32 +926,39 @@
 """ % bcb_dev)
 
   # Dump fingerprints
-  script.Print("Source: %s" % CalculateFingerprint(
-      oem_props, oem_dict, OPTIONS.source_info_dict))
-  script.Print("Target: %s" % CalculateFingerprint(
-      oem_props, oem_dict, OPTIONS.target_info_dict))
+  script.Print(source_fp)
+  script.Print(target_fp)
 
   script.Print("Verifying current system...")
 
   device_specific.IncrementalOTA_VerifyBegin()
 
-  if oem_props is None:
-    # When blockimgdiff version is less than 3 (non-resumable block-based OTA),
-    # patching on a device that's already on the target build will damage the
-    # system. Because operations like move don't check the block state, they
-    # always apply the changes unconditionally.
-    if blockimgdiff_version <= 2:
+  # When blockimgdiff version is less than 3 (non-resumable block-based OTA),
+  # patching on a device that's already on the target build will damage the
+  # system. Because operations like move don't check the block state, they
+  # always apply the changes unconditionally.
+  if blockimgdiff_version <= 2:
+    if source_oem_props is None:
       script.AssertSomeFingerprint(source_fp)
     else:
-      script.AssertSomeFingerprint(source_fp, target_fp)
-  else:
-    if blockimgdiff_version <= 2:
       script.AssertSomeThumbprint(
           GetBuildProp("ro.build.thumbprint", OPTIONS.source_info_dict))
-    else:
+
+  else: # blockimgdiff_version > 2
+    if source_oem_props is None and target_oem_props is None:
+      script.AssertSomeFingerprint(source_fp, target_fp)
+    elif source_oem_props is not None and target_oem_props is not None:
       script.AssertSomeThumbprint(
           GetBuildProp("ro.build.thumbprint", OPTIONS.target_info_dict),
           GetBuildProp("ro.build.thumbprint", OPTIONS.source_info_dict))
+    elif source_oem_props is None and target_oem_props is not None:
+      script.AssertFingerprintOrThumbprint(
+          source_fp,
+          GetBuildProp("ro.build.thumbprint", OPTIONS.target_info_dict))
+    else:
+      script.AssertFingerprintOrThumbprint(
+          target_fp,
+          GetBuildProp("ro.build.thumbprint", OPTIONS.source_info_dict))
 
   # Check the required cache size (i.e. stashed blocks).
   size = []
@@ -958,9 +1003,9 @@
 """ % bcb_dev)
 
   # Verify the existing partitions.
-  system_diff.WriteVerifyScript(script)
+  system_diff.WriteVerifyScript(script, touched_blocks_only=True)
   if vendor_diff:
-    vendor_diff.WriteVerifyScript(script)
+    vendor_diff.WriteVerifyScript(script, touched_blocks_only=True)
 
   script.Comment("---- start making changes here ----")
 
@@ -1009,6 +1054,7 @@
   if OPTIONS.wipe_user_data:
     script.Print("Erasing user data...")
     script.FormatPartition("/data")
+    metadata["ota-wipe"] = "yes"
 
   if OPTIONS.two_step:
     script.AppendExtra("""
@@ -1018,7 +1064,12 @@
 """ % bcb_dev)
 
   script.SetProgress(1)
-  script.AddToZip(target_zip, output_zip, input_path=OPTIONS.updater_binary)
+  # For downgrade OTAs, we prefer to use the update-binary in the source
+  # build that is actually newer than the one in the target build.
+  if OPTIONS.downgrade:
+    script.AddToZip(source_zip, output_zip, input_path=OPTIONS.updater_binary)
+  else:
+    script.AddToZip(target_zip, output_zip, input_path=OPTIONS.updater_binary)
   metadata["ota-required-cache"] = str(script.required_cache)
   WriteMetadata(metadata, output_zip)
 
@@ -1030,10 +1081,11 @@
   recovery_mount_options = OPTIONS.info_dict.get(
       "recovery_mount_options")
   oem_dict = None
-  if oem_props is not None and len(oem_props) > 0:
+  if oem_props:
     if OPTIONS.oem_source is None:
       raise common.ExternalError("OEM source required for this build")
-    script.Mount("/oem", recovery_mount_options)
+    if not OPTIONS.oem_no_mount:
+      script.Mount("/oem", recovery_mount_options)
     oem_dict = common.LoadDictionaryFromLines(
         open(OPTIONS.oem_source).readlines())
 
@@ -1372,31 +1424,52 @@
   target_version = OPTIONS.target_info_dict["recovery_api_version"]
 
   if source_version == 0:
-    print ("WARNING: generating edify script for a source that "
-           "can't install it.")
+    print("WARNING: generating edify script for a source that "
+          "can't install it.")
   script = edify_generator.EdifyGenerator(
       source_version, OPTIONS.target_info_dict,
       fstab=OPTIONS.source_info_dict["fstab"])
 
-  oem_props = OPTIONS.info_dict.get("oem_fingerprint_properties")
   recovery_mount_options = OPTIONS.source_info_dict.get(
       "recovery_mount_options")
+  source_oem_props = OPTIONS.source_info_dict.get("oem_fingerprint_properties")
+  target_oem_props = OPTIONS.target_info_dict.get("oem_fingerprint_properties")
   oem_dict = None
-  if oem_props is not None and len(oem_props) > 0:
+  if source_oem_props or target_oem_props:
     if OPTIONS.oem_source is None:
       raise common.ExternalError("OEM source required for this build")
-    script.Mount("/oem", recovery_mount_options)
+    if not OPTIONS.oem_no_mount:
+      script.Mount("/oem", recovery_mount_options)
     oem_dict = common.LoadDictionaryFromLines(
         open(OPTIONS.oem_source).readlines())
 
   metadata = {
-      "pre-device": GetOemProperty("ro.product.device", oem_props, oem_dict,
-                                   OPTIONS.source_info_dict),
-      "post-timestamp": GetBuildProp("ro.build.date.utc",
-                                     OPTIONS.target_info_dict),
+      "pre-device": GetOemProperty("ro.product.device", source_oem_props,
+                                   oem_dict, OPTIONS.source_info_dict),
       "ota-type": "FILE",
   }
 
+  post_timestamp = GetBuildProp("ro.build.date.utc", OPTIONS.target_info_dict)
+  pre_timestamp = GetBuildProp("ro.build.date.utc", OPTIONS.source_info_dict)
+  is_downgrade = long(post_timestamp) < long(pre_timestamp)
+
+  if OPTIONS.downgrade:
+    metadata["ota-downgrade"] = "yes"
+    if not is_downgrade:
+      raise RuntimeError("--downgrade specified but no downgrade detected: "
+                         "pre: %s, post: %s" % (pre_timestamp, post_timestamp))
+  else:
+    if is_downgrade:
+      # Non-fatal here to allow generating such a package which may require
+      # manual work to adjust the post-timestamp. A legit use case is that we
+      # cut a new build C (after having A and B), but want to enfore the
+      # update path of A -> C -> B. Specifying --downgrade may not help since
+      # that would enforce a data wipe for C -> B update.
+      print("\nWARNING: downgrade detected: pre: %s, post: %s.\n"
+            "The package may not be deployed properly. "
+            "Try --downgrade?\n" % (pre_timestamp, post_timestamp))
+    metadata["post-timestamp"] = post_timestamp
+
   device_specific = common.DeviceSpecificParams(
       source_zip=source_zip,
       source_version=source_version,
@@ -1415,17 +1488,25 @@
   else:
     vendor_diff = None
 
-  target_fp = CalculateFingerprint(oem_props, oem_dict,
+  target_fp = CalculateFingerprint(target_oem_props, oem_dict,
                                    OPTIONS.target_info_dict)
-  source_fp = CalculateFingerprint(oem_props, oem_dict,
+  source_fp = CalculateFingerprint(source_oem_props, oem_dict,
                                    OPTIONS.source_info_dict)
 
-  if oem_props is None:
+  if source_oem_props is None and target_oem_props is None:
     script.AssertSomeFingerprint(source_fp, target_fp)
-  else:
+  elif source_oem_props is not None and target_oem_props is not None:
     script.AssertSomeThumbprint(
         GetBuildProp("ro.build.thumbprint", OPTIONS.target_info_dict),
         GetBuildProp("ro.build.thumbprint", OPTIONS.source_info_dict))
+  elif source_oem_props is None and target_oem_props is not None:
+    script.AssertFingerprintOrThumbprint(
+        source_fp,
+        GetBuildProp("ro.build.thumbprint", OPTIONS.target_info_dict))
+  else:
+    script.AssertFingerprintOrThumbprint(
+        target_fp,
+        GetBuildProp("ro.build.thumbprint", OPTIONS.source_info_dict))
 
   metadata["pre-build"] = source_fp
   metadata["post-build"] = target_fp
@@ -1725,6 +1806,7 @@
   if OPTIONS.wipe_user_data:
     script.Print("Erasing user data...")
     script.FormatPartition("/data")
+    metadata["ota-wipe"] = "yes"
 
   if OPTIONS.two_step:
     script.AppendExtra("""
@@ -1744,7 +1826,13 @@
     script.Unmount("/vendor")
     script.Mount("/vendor", recovery_mount_options)
     vendor_diff.EmitExplicitTargetVerification(script)
-  script.AddToZip(target_zip, output_zip, input_path=OPTIONS.updater_binary)
+
+  # For downgrade OTAs, we prefer to use the update-binary in the source
+  # build that is actually newer than the one in the target build.
+  if OPTIONS.downgrade:
+    script.AddToZip(source_zip, output_zip, input_path=OPTIONS.updater_binary)
+  else:
+    script.AddToZip(target_zip, output_zip, input_path=OPTIONS.updater_binary)
 
   metadata["ota-required-cache"] = str(script.required_cache)
   WriteMetadata(metadata, output_zip)
@@ -1767,8 +1855,13 @@
       OPTIONS.wipe_user_data = True
     elif o in ("-n", "--no_prereq"):
       OPTIONS.omit_prereq = True
+    elif o == "--downgrade":
+      OPTIONS.downgrade = True
+      OPTIONS.wipe_user_data = True
     elif o in ("-o", "--oem_settings"):
       OPTIONS.oem_source = a
+    elif o == "--oem_no_mount":
+      OPTIONS.oem_no_mount = True
     elif o in ("-e", "--extra_script"):
       OPTIONS.extra_script = a
     elif o in ("-a", "--aslr_mode"):
@@ -1818,6 +1911,7 @@
                                  "full_bootloader",
                                  "wipe_user_data",
                                  "no_prereq",
+                                 "downgrade",
                                  "extra_script=",
                                  "worker_threads=",
                                  "aslr_mode=",
@@ -1826,6 +1920,7 @@
                                  "block",
                                  "binary=",
                                  "oem_settings=",
+                                 "oem_no_mount",
                                  "verify",
                                  "no_fallback_to_full",
                                  "stash_threshold=",
@@ -1837,6 +1932,18 @@
     common.Usage(__doc__)
     sys.exit(1)
 
+  if OPTIONS.downgrade:
+    # Sanity check to enforce a data wipe.
+    if not OPTIONS.wipe_user_data:
+      raise ValueError("Cannot downgrade without a data wipe")
+
+    # We should only allow downgrading incrementals (as opposed to full).
+    # Otherwise the device may go back from arbitrary build with this full
+    # OTA package.
+    if OPTIONS.incremental_source is None:
+      raise ValueError("Cannot generate downgradable full OTAs - consider"
+                       "using --omit_prereq?")
+
   # Load the dict file from the zip directly to have a peek at the OTA type.
   # For packages using A/B update, unzipping is not needed.
   input_zip = zipfile.ZipFile(args[0], "r")
diff --git a/tools/releasetools/rangelib.py b/tools/releasetools/rangelib.py
index 975a48a..1638f8c 100644
--- a/tools/releasetools/rangelib.py
+++ b/tools/releasetools/rangelib.py
@@ -71,6 +71,19 @@
     """
     return cls(text)
 
+  @classmethod
+  def parse_raw(cls, text):
+    """Parse a string generated by RangeSet.to_string_raw().
+
+    >>> RangeSet.parse_raw(RangeSet("0-9").to_string_raw())
+    <RangeSet("0-9")>
+    """
+
+    raw = [int(i) for i in text.split(',')]
+    assert raw[0] == len(raw[1:]), "Invalid raw string."
+
+    return cls(data=raw[1:])
+
   def _parse_internal(self, text):
     data = []
     last = -1
@@ -91,7 +104,7 @@
         if last <= s:
           last = s+1
         else:
-          monotonic = True
+          monotonic = False
     data.sort()
     self.data = tuple(self._remove_pairs(data))
     self.monotonic = monotonic
diff --git a/tools/releasetools/sign_target_files_apks.py b/tools/releasetools/sign_target_files_apks.py
index 8941e35..f758ae0 100755
--- a/tools/releasetools/sign_target_files_apks.py
+++ b/tools/releasetools/sign_target_files_apks.py
@@ -421,8 +421,8 @@
   temp_file = cStringIO.StringIO()
   certs_zip = zipfile.ZipFile(temp_file, "w")
   for k in mapped_keys:
-    certs_zip.write(k)
-  certs_zip.close()
+    common.ZipWrite(certs_zip, k)
+  common.ZipClose(certs_zip)
   common.ZipWriteStr(output_tf_zip, "SYSTEM/etc/security/otacerts.zip",
                      temp_file.getvalue())
 
diff --git a/tools/releasetools/test_rangelib.py b/tools/releasetools/test_rangelib.py
index 7debe66..1c57cbc 100644
--- a/tools/releasetools/test_rangelib.py
+++ b/tools/releasetools/test_rangelib.py
@@ -117,9 +117,24 @@
     self.assertTrue(RangeSet("").monotonic)
     self.assertTrue(RangeSet("0-4 5-9").monotonic)
     self.assertFalse(RangeSet("5-9 0-4").monotonic)
+    self.assertFalse(RangeSet("258768-259211 196604").monotonic)
 
     self.assertTrue(RangeSet(data=[0, 10]).monotonic)
     self.assertTrue(RangeSet(data=[0, 10, 15, 20]).monotonic)
     self.assertTrue(RangeSet(data=[2, 9, 30, 31, 31, 32, 35, 36]).monotonic)
     self.assertTrue(RangeSet(data=[0, 5, 5, 10]).monotonic)
     self.assertFalse(RangeSet(data=[5, 10, 0, 5]).monotonic)
+
+  def test_parse_raw(self):
+    self.assertEqual(
+        RangeSet.parse_raw(RangeSet("0-9").to_string_raw()),
+        RangeSet("0-9"))
+    self.assertEqual(RangeSet.parse_raw(
+        RangeSet("2-10 12").to_string_raw()),
+        RangeSet("2-10 12"))
+    self.assertEqual(
+        RangeSet.parse_raw(RangeSet("11 2-10 12 1 0").to_string_raw()),
+        RangeSet("11 2-10 12 1 0"))
+
+    with self.assertRaises(AssertionError):
+      RangeSet.parse_raw("4,0,10")
diff --git a/tools/signapk/src/com/android/signapk/ApkSignerV2.java b/tools/signapk/src/com/android/signapk/ApkSignerV2.java
index ee5e72e..7b617db 100644
--- a/tools/signapk/src/com/android/signapk/ApkSignerV2.java
+++ b/tools/signapk/src/com/android/signapk/ApkSignerV2.java
@@ -75,7 +75,6 @@
     public static final int SIGNATURE_ECDSA_WITH_SHA256 = 0x0201;
     public static final int SIGNATURE_ECDSA_WITH_SHA512 = 0x0202;
     public static final int SIGNATURE_DSA_WITH_SHA256 = 0x0301;
-    public static final int SIGNATURE_DSA_WITH_SHA512 = 0x0302;
 
     /**
      * {@code .SF} file header section attribute indicating that the APK is signed not just with
@@ -85,8 +84,7 @@
      * <p>The attribute contains a comma-separated set of signature scheme IDs.
      */
     public static final String SF_ATTRIBUTE_ANDROID_APK_SIGNED_NAME = "X-Android-APK-Signed";
-    // TODO: Adjust the value when signing scheme finalized.
-    public static final String SF_ATTRIBUTE_ANDROID_APK_SIGNED_VALUE = "1234567890";
+    public static final String SF_ATTRIBUTE_ANDROID_APK_SIGNED_VALUE = "2";
 
     private static final int CONTENT_DIGEST_CHUNKED_SHA256 = 0;
     private static final int CONTENT_DIGEST_CHUNKED_SHA512 = 1;
@@ -661,8 +659,6 @@
                 return Pair.create("SHA512withECDSA", null);
             case SIGNATURE_DSA_WITH_SHA256:
                 return Pair.create("SHA256withDSA", null);
-            case SIGNATURE_DSA_WITH_SHA512:
-                return Pair.create("SHA512withDSA", null);
             default:
                 throw new IllegalArgumentException(
                         "Unknown signature algorithm: 0x"
@@ -680,7 +676,6 @@
             case SIGNATURE_RSA_PSS_WITH_SHA512:
             case SIGNATURE_RSA_PKCS1_V1_5_WITH_SHA512:
             case SIGNATURE_ECDSA_WITH_SHA512:
-            case SIGNATURE_DSA_WITH_SHA512:
                 return CONTENT_DIGEST_CHUNKED_SHA512;
             default:
                 throw new IllegalArgumentException(
diff --git a/tools/signapk/src/com/android/signapk/SignApk.java b/tools/signapk/src/com/android/signapk/SignApk.java
index 4d6744a..d763be5 100644
--- a/tools/signapk/src/com/android/signapk/SignApk.java
+++ b/tools/signapk/src/com/android/signapk/SignApk.java
@@ -544,6 +544,11 @@
             // Preserve the STORED method of the input entry.
             outEntry = new JarEntry(inEntry);
             outEntry.setTime(timestamp);
+            // Discard comment and extra fields of this entry to
+            // simplify alignment logic below and for consistency with
+            // how compressed entries are handled later.
+            outEntry.setComment(null);
+            outEntry.setExtra(null);
 
             // 'offset' is the offset into the file at which we expect
             // the file data to begin.  This is the value we need to
@@ -987,7 +992,7 @@
             } else if ("EC".equalsIgnoreCase(keyAlgorithm)) {
                 return ApkSignerV2.SIGNATURE_ECDSA_WITH_SHA512;
             } else if ("DSA".equalsIgnoreCase(keyAlgorithm)) {
-                return ApkSignerV2.SIGNATURE_DSA_WITH_SHA512;
+                throw new IllegalArgumentException("SHA-512 is not supported with DSA");
             } else {
                 throw new IllegalArgumentException("Unsupported key algorithm: " + keyAlgorithm);
             }
diff --git a/tools/signapk/src/com/android/signapk/ZipUtils.java b/tools/signapk/src/com/android/signapk/ZipUtils.java
index b9a17ca..7575a77 100644
--- a/tools/signapk/src/com/android/signapk/ZipUtils.java
+++ b/tools/signapk/src/com/android/signapk/ZipUtils.java
@@ -37,7 +37,7 @@
     private static final int ZIP64_EOCD_LOCATOR_SIZE = 20;
     private static final int ZIP64_EOCD_LOCATOR_SIG = 0x07064b50;
 
-    private static final int UINT32_MAX_VALUE = 0xffff;
+    private static final int UINT16_MAX_VALUE = 0xffff;
 
     /**
      * Returns the position at which ZIP End of Central Directory record starts in the provided
@@ -56,14 +56,13 @@
         // end of the buffer for the EOCD record signature. Whenever we find a signature, we check
         // the candidate record's comment length is such that the remainder of the record takes up
         // exactly the remaining bytes in the buffer. The search is bounded because the maximum
-        // size of the comment field is 65535 bytes because the field is an unsigned 32-bit number.
+        // size of the comment field is 65535 bytes because the field is an unsigned 16-bit number.
 
         int archiveSize = zipContents.capacity();
         if (archiveSize < ZIP_EOCD_REC_MIN_SIZE) {
-            System.out.println("File size smaller than EOCD min size");
             return -1;
         }
-        int maxCommentLength = Math.min(archiveSize - ZIP_EOCD_REC_MIN_SIZE, UINT32_MAX_VALUE);
+        int maxCommentLength = Math.min(archiveSize - ZIP_EOCD_REC_MIN_SIZE, UINT16_MAX_VALUE);
         int eocdWithEmptyCommentStartPosition = archiveSize - ZIP_EOCD_REC_MIN_SIZE;
         for (int expectedCommentLength = 0; expectedCommentLength < maxCommentLength;
                 expectedCommentLength++) {
diff --git a/tools/warn.py b/tools/warn.py
index 8097123..14b3f48 100755
--- a/tools/warn.py
+++ b/tools/warn.py
@@ -16,7 +16,8 @@
     HIGH=2
     MEDIUM=3
     LOW=4
-    HARMLESS=5
+    TIDY=5
+    HARMLESS=6
 
 def colorforseverity(sev):
     if sev == severity.FIXMENOW:
@@ -27,12 +28,31 @@
         return 'orange'
     if sev == severity.LOW:
         return 'yellow'
+    if sev == severity.TIDY:
+        return 'peachpuff'
     if sev == severity.HARMLESS:
         return 'limegreen'
     if sev == severity.UNKNOWN:
-        return 'blue'
+        return 'lightblue'
     return 'grey'
 
+def headerforseverity(sev):
+    if sev == severity.FIXMENOW:
+        return 'Critical warnings, fix me now'
+    if sev == severity.HIGH:
+        return 'High severity warnings'
+    if sev == severity.MEDIUM:
+        return 'Medium severity warnings'
+    if sev == severity.LOW:
+        return 'Low severity warnings'
+    if sev == severity.HARMLESS:
+        return 'Harmless warnings'
+    if sev == severity.TIDY:
+        return 'Clang-Tidy warnings'
+    if sev == severity.UNKNOWN:
+        return 'Unknown warnings'
+    return 'Unhandled warnings'
+
 warnpatterns = [
     { 'category':'make',    'severity':severity.MEDIUM,   'members':[], 'option':'',
         'description':'make: overriding commands/ignoring old commands',
@@ -46,9 +66,35 @@
         'patterns':[r".*: warning: conflicting types for '.+'"] },
     { 'category':'C/C++',   'severity':severity.HIGH,     'members':[], 'option':'-Wtype-limits',
         'description':'Expression always evaluates to true or false',
-        'patterns':[r".*: warning: comparison is always false due to limited range of data type",
-                    r".*: warning: comparison of unsigned expression >= 0 is always true",
-                    r".*: warning: comparison of unsigned expression < 0 is always false"] },
+        'patterns':[r".*: warning: comparison is always .+ due to limited range of data type",
+                    r".*: warning: comparison of unsigned .*expression .+ is always true",
+                    r".*: warning: comparison of unsigned .*expression .+ is always false"] },
+    { 'category':'C/C++',   'severity':severity.HIGH,     'members':[], 'option':'',
+        'description':'Potential leak of memory, bad free, use after free',
+        'patterns':[r".*: warning: Potential leak of memory",
+                    r".*: warning: Potential memory leak",
+                    r".*: warning: Memory allocated by .+ should be deallocated by .+ not .+",
+                    r".*: warning: 'delete' applied to a pointer that was allocated",
+                    r".*: warning: Use of memory after it is freed",
+                    r".*: warning: Argument to .+ is the address of .+ variable",
+                    r".*: warning: Argument to free\(\) is offset by .+ of memory allocated by",
+                    r".*: warning: Attempt to .+ released memory"] },
+    { 'category':'C/C++',   'severity':severity.HIGH,     'members':[], 'option':'',
+        'description':'Return address of stack memory',
+        'patterns':[r".*: warning: Address of stack memory .+ returned to caller",
+                    r".*: warning: Address of stack memory .+ will be a dangling reference"] },
+    { 'category':'C/C++',   'severity':severity.HIGH,     'members':[], 'option':'',
+        'description':'Problem with vfork',
+        'patterns':[r".*: warning: This .+ is prohibited after a successful vfork",
+                    r".*: warning: Call to function 'vfork' is insecure "] },
+    { 'category':'C/C++',   'severity':severity.HIGH,     'members':[], 'option':'infinite-recursion',
+        'description':'Infinite recursion',
+        'patterns':[r".*: warning: all paths through this function will call itself"] },
+    { 'category':'C/C++',   'severity':severity.HIGH,     'members':[], 'option':'',
+        'description':'Potential buffer overflow',
+        'patterns':[r".*: warning: Size argument is greater than .+ the destination buffer",
+                    r".*: warning: Potential buffer overflow.",
+                    r".*: warning: String copy function overflows destination buffer"] },
     { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'',
         'description':'Incompatible pointer types',
         'patterns':[r".*: warning: assignment from incompatible pointer type",
@@ -64,10 +110,16 @@
     { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'-Wunused',
         'description':'Unused function, variable or label',
         'patterns':[r".*: warning: '.+' defined but not used",
+                    r".*: warning: unused function '.+'",
+                    r".*: warning: private field '.+' is not used",
                     r".*: warning: unused variable '.+'"] },
     { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'-Wunused-value',
-        'description':'Statement with no effect',
-        'patterns':[r".*: warning: statement with no effect"] },
+        'description':'Statement with no effect or result unused',
+        'patterns':[r".*: warning: statement with no effect",
+                    r".*: warning: expression result unused"] },
+    { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'-Wunused-result',
+        'description':'Ignoreing return value of function',
+        'patterns':[r".*: warning: ignoring return value of function .+Wunused-result"] },
     { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'-Wmissing-field-initializers',
         'description':'Missing initializer',
         'patterns':[r".*: warning: missing initializer"] },
@@ -76,10 +128,19 @@
         'patterns':[r".*: warning: \(near initialization for '.+'\)"] },
     { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'-Wformat',
         'description':'Format string does not match arguments',
-        'patterns':[r".*: warning: format '.+' expects type '.+', but argument [0-9]+ has type '.+'"] },
+        'patterns':[r".*: warning: format '.+' expects type '.+', but argument [0-9]+ has type '.+'",
+                    r".*: warning: more '%' conversions than data arguments",
+                    r".*: warning: data argument not used by format string",
+                    r".*: warning: incomplete format specifier",
+                    r".*: warning: format .+ expects .+ but argument .+Wformat=",
+                    r".*: warning: field precision should have .+ but argument has .+Wformat",
+                    r".*: warning: format specifies type .+ but the argument has .*type .+Wformat"] },
     { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'-Wformat-extra-args',
         'description':'Too many arguments for format string',
         'patterns':[r".*: warning: too many arguments for format"] },
+    { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'-Wformat-invalid-specifier',
+        'description':'Invalid format specifier',
+        'patterns':[r".*: warning: invalid .+ specifier '.+'.+format-invalid-specifier"] },
     { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'-Wsign-compare',
         'description':'Comparison between signed and unsigned',
         'patterns':[r".*: warning: comparison between signed and unsigned",
@@ -104,6 +165,8 @@
         'description':'Qualifier discarded',
         'patterns':[r".*: warning: passing argument [0-9]+ of '.+' discards qualifiers from pointer target type",
                     r".*: warning: assignment discards qualifiers from pointer target type",
+                    r".*: warning: passing .+ to parameter of type .+ discards qualifiers",
+                    r".*: warning: assigning to .+ from .+ discards qualifiers",
                     r".*: warning: return discards qualifiers from pointer target type"] },
     { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'-Wattributes',
         'description':'Attribute ignored',
@@ -125,7 +188,8 @@
         'patterns':[r".*: warning: '.+' may be used uninitialized in this function"] },
     { 'category':'C/C++',   'severity':severity.HIGH,     'members':[], 'option':'-Wuninitialized',
         'description':'Variable is used uninitialized',
-        'patterns':[r".*: warning: '.+' is used uninitialized in this function"] },
+        'patterns':[r".*: warning: '.+' is used uninitialized in this function",
+                    r".*: warning: variable '.+' is uninitialized when used here"] },
     { 'category':'ld',      'severity':severity.MEDIUM,   'members':[], 'option':'-fshort-enums',
         'description':'ld: possible enum size mismatch',
         'patterns':[r".*: warning: .* uses variable-size enums yet the output is to use 32-bit enums; use of enum values across objects may fail"] },
@@ -149,6 +213,9 @@
         'patterns':[r".*: warning: suggest explicit braces to avoid ambiguous 'else'",
                     r".*: warning: suggest parentheses around arithmetic in operand of '.+'",
                     r".*: warning: suggest parentheses around comparison in operand of '.+'",
+                    r".*: warning: logical not is only applied to the left hand side of this comparison",
+                    r".*: warning: using the result of an assignment as a condition without parentheses",
+                    r".*: warning: .+ has lower precedence than .+ be evaluated first .+Wparentheses",
                     r".*: warning: suggest parentheses around '.+?' .+ '.+?'",
                     r".*: warning: suggest parentheses around assignment used as truth value"] },
     { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'',
@@ -157,6 +224,16 @@
     { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'-Wimplicit int',
         'description':'No type or storage class (will default to int)',
         'patterns':[r".*: warning: data definition has no type or storage class"] },
+    { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'',
+        'description':'Null pointer',
+        'patterns':[r".*: warning: Dereference of null pointer",
+                    r".*: warning: Called .+ pointer is null",
+                    r".*: warning: Forming reference to null pointer",
+                    r".*: warning: Returning null reference",
+                    r".*: warning: Null pointer passed as an argument to a 'nonnull' parameter",
+                    r".*: warning: .+ results in a null pointer dereference",
+                    r".*: warning: Access to .+ results in a dereference of a null pointer",
+                    r".*: warning: Null pointer argument in"] },
     { 'category':'cont.',   'severity':severity.SKIP,     'members':[], 'option':'',
         'description':'',
         'patterns':[r".*: warning: type defaults to 'int' in declaration of '.+'"] },
@@ -213,13 +290,19 @@
         'patterns':[r".*: warning: previous declaration of '.+' was here"] },
     { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'-Wswitch-enum',
         'description':'Enum value not handled in switch',
-        'patterns':[r".*: warning: enumeration value '.+' not handled in switch"] },
+        'patterns':[r".*: warning: .*enumeration value.* not handled in switch.+Wswitch"] },
     { 'category':'java',    'severity':severity.MEDIUM,   'members':[], 'option':'-encoding',
         'description':'Java: Non-ascii characters used, but ascii encoding specified',
         'patterns':[r".*: warning: unmappable character for encoding ascii"] },
     { 'category':'java',    'severity':severity.MEDIUM,   'members':[], 'option':'',
         'description':'Java: Non-varargs call of varargs method with inexact argument type for last parameter',
         'patterns':[r".*: warning: non-varargs call of varargs method with inexact argument type for last parameter"] },
+    { 'category':'java',    'severity':severity.MEDIUM,   'members':[], 'option':'',
+        'description':'Java: Unchecked method invocation',
+        'patterns':[r".*: warning: \[unchecked\] unchecked method invocation: .+ in class .+"] },
+    { 'category':'java',    'severity':severity.MEDIUM,   'members':[], 'option':'',
+        'description':'Java: Unchecked conversion',
+        'patterns':[r".*: warning: \[unchecked\] unchecked conversion"] },
     { 'category':'aapt',    'severity':severity.MEDIUM,   'members':[], 'option':'',
         'description':'aapt: No default translation',
         'patterns':[r".*: warning: string '.+' has no default translation in .*"] },
@@ -241,8 +324,12 @@
     { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'-Warray-bounds',
         'description':'Array subscript out of bounds',
         'patterns':[r".*: warning: array subscript is above array bounds",
+                    r".*: warning: Array subscript is undefined",
                     r".*: warning: array subscript is below array bounds"] },
     { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'',
+        'description':'Excess elements in initializer',
+        'patterns':[r".*: warning: excess elements in .+ initializer"] },
+    { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'',
         'description':'Decimal constant is unsigned only in ISO C90',
         'patterns':[r".*: warning: this decimal constant is unsigned only in ISO C90"] },
     { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'-Wmain',
@@ -259,7 +346,7 @@
         'patterns':[r".*: warning: attempt to free a non-heap object '.+'"] },
     { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'-Wchar-subscripts',
         'description':'Array subscript has type char',
-        'patterns':[r".*: warning: array subscript has type 'char'"] },
+        'patterns':[r".*: warning: array subscript .+ type 'char'.+Wchar-subscripts"] },
     { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'',
         'description':'Constant too large for type',
         'patterns':[r".*: warning: integer constant is too large for '.+' type"] },
@@ -274,7 +361,8 @@
         'patterns':[r".*: warning: declaration 'class .+' does not declare anything"] },
     { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'-Wreorder',
         'description':'Initialization order will be different',
-        'patterns':[r".*: warning: '.+' will be initialized after"] },
+        'patterns':[r".*: warning: '.+' will be initialized after",
+                    r".*: warning: field .+ will be initialized after .+Wreorder"] },
     { 'category':'cont.',   'severity':severity.SKIP,     'members':[], 'option':'',
         'description':'',
         'patterns':[r".*: warning:   '.+'"] },
@@ -307,7 +395,8 @@
         'patterns':[r".*: warning: function declaration isn't a prototype"] },
     { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'-Wignored-qualifiers',
         'description':'Type qualifiers ignored on function return value',
-        'patterns':[r".*: warning: type qualifiers ignored on function return type"] },
+        'patterns':[r".*: warning: type qualifiers ignored on function return type",
+                    r".*: warning: .+ type qualifier .+ has no effect .+Wignored-qualifiers"] },
     { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'',
         'description':'&lt;foo&gt; declared inside parameter list, scope limited to this definition',
         'patterns':[r".*: warning: '.+' declared inside parameter list"] },
@@ -320,12 +409,24 @@
     { 'category':'C/C++',   'severity':severity.LOW,      'members':[], 'option':'-Wcomment',
         'description':'Comment inside comment',
         'patterns':[r".*: warning: "".+"" within comment"] },
+    { 'category':'C/C++',   'severity':severity.LOW,      'members':[], 'option':'',
+        'description':'Value stored is never read',
+        'patterns':[r".*: warning: Value stored to .+ is never read"] },
+    { 'category':'C/C++',   'severity':severity.LOW,      'members':[], 'option':'-Wdeprecated-declarations',
+        'description':'Deprecated declarations',
+        'patterns':[r".*: warning: .+ is deprecated.+deprecated-declarations"] },
+    { 'category':'C/C++',   'severity':severity.LOW,      'members':[], 'option':'-Wdeprecated-register',
+        'description':'Deprecated register',
+        'patterns':[r".*: warning: 'register' storage class specifier is deprecated"] },
+    { 'category':'C/C++',   'severity':severity.LOW,      'members':[], 'option':'-Wpointer-sign',
+        'description':'Converts between pointers to integer types with different sign',
+        'patterns':[r".*: warning: .+ converts between pointers to integer types with different sign"] },
     { 'category':'C/C++',   'severity':severity.HARMLESS, 'members':[], 'option':'',
         'description':'Extra tokens after #endif',
         'patterns':[r".*: warning: extra tokens at end of #endif directive"] },
     { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'-Wenum-compare',
         'description':'Comparison between different enums',
-        'patterns':[r".*: warning: comparison between 'enum .+' and 'enum .+'"] },
+        'patterns':[r".*: warning: comparison between '.+' and '.+'.+Wenum-compare"] },
     { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'-Wconversion',
         'description':'Implicit conversion of negative number to unsigned type',
         'patterns':[r".*: warning: converting negative value '.+' to '.+'"] },
@@ -342,9 +443,13 @@
     { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'-Wctor-dtor-privacy',
         'description':'Class seems unusable because of private ctor/dtor' ,
         'patterns':[r".*: warning: 'class .+' only defines private constructors and has no friends"] },
+    { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'-Wgnu-static-float-init',
+        'description':'In-class initializer for static const float/double' ,
+        'patterns':[r".*: warning: in-class initializer for static data member of .+const (float|double)"] },
     { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'-Wpointer-arith',
         'description':'void* used in arithmetic' ,
         'patterns':[r".*: warning: pointer of type 'void \*' used in (arithmetic|subtraction)",
+                    r".*: warning: arithmetic on .+ to void is a GNU extension.*Wpointer-arith",
                     r".*: warning: wrong type argument to increment"] },
     { 'category':'C/C++',   'severity':severity.MEDIUM,   'members':[], 'option':'-Wsign-promo',
         'description':'Overload resolution chose to promote from unsigned or enum to signed type' ,
@@ -359,23 +464,159 @@
         'description':'Converting from <type> to <other type>',
         'patterns':[r".*: warning: converting to '.+' from '.+'"] },
     { 'category':'C/C++',   'severity':severity.MEDIUM,     'members':[], 'option':'',
+        'description':'VLA has zero or negative size',
+        'patterns':[r".*: warning: Declared variable-length array \(VLA\) has .+ size"] },
+    { 'category':'C/C++',   'severity':severity.MEDIUM,     'members':[], 'option':'',
         'description':'Return value from void function',
         'patterns':[r".*: warning: 'return' with a value, in function returning void"] },
+    { 'category':'C/C++',   'severity':severity.MEDIUM,     'members':[], 'option':'multichar',
+        'description':'Multi-character character constant',
+        'patterns':[r".*: warning: multi-character character constant"] },
+    { 'category':'C/C++',   'severity':severity.MEDIUM,     'members':[], 'option':'writable-strings',
+        'description':'Conversion from string literal to char*',
+        'patterns':[r".*: warning: .+ does not allow conversion from string literal to 'char \*'"] },
     { 'category':'C/C++',   'severity':severity.LOW,     'members':[], 'option':'',
         'description':'Useless specifier',
         'patterns':[r".*: warning: useless storage class specifier in empty declaration"] },
+    { 'category':'C/C++',   'severity':severity.LOW,     'members':[], 'option':'-Wduplicate-decl-specifier',
+        'description':'Duplicate declaration specifier',
+        'patterns':[r".*: warning: duplicate '.+' declaration specifier"] },
     { 'category':'logtags',   'severity':severity.LOW,     'members':[], 'option':'',
         'description':'Duplicate logtag',
-        'patterns':[r".*: warning: tag "".+"" \(None\) duplicated in .+"] },
+        'patterns':[r".*: warning: tag \".+\" \(.+\) duplicated in .+"] },
+    { 'category':'logtags',   'severity':severity.LOW,     'members':[], 'option':'typedef-redefinition',
+        'description':'Typedef redefinition',
+        'patterns':[r".*: warning: redefinition of typedef '.+' is a C11 feature"] },
+    { 'category':'logtags',   'severity':severity.LOW,     'members':[], 'option':'gnu-designator',
+        'description':'GNU old-style field designator',
+        'patterns':[r".*: warning: use of GNU old-style field designator extension"] },
+    { 'category':'logtags',   'severity':severity.LOW,     'members':[], 'option':'missing-field-initializers',
+        'description':'Missing field initializers',
+        'patterns':[r".*: warning: missing field '.+' initializer"] },
+    { 'category':'logtags',   'severity':severity.LOW,     'members':[], 'option':'missing-braces',
+        'description':'Missing braces',
+        'patterns':[r".*: warning: suggest braces around initialization of",
+                    r".*: warning: too many braces around scalar initializer .+Wmany-braces-around-scalar-init",
+                    r".*: warning: braces around scalar initializer"] },
+    { 'category':'logtags',   'severity':severity.LOW,     'members':[], 'option':'sign-compare',
+        'description':'Comparison of integers of different signs',
+        'patterns':[r".*: warning: comparison of integers of different signs.+sign-compare"] },
+    { 'category':'logtags',   'severity':severity.LOW,     'members':[], 'option':'dangling-else',
+        'description':'Add braces to avoid dangling else',
+        'patterns':[r".*: warning: add explicit braces to avoid dangling else"] },
+    { 'category':'logtags',   'severity':severity.LOW,     'members':[], 'option':'initializer-overrides',
+        'description':'Initializer overrides prior initialization',
+        'patterns':[r".*: warning: initializer overrides prior initialization of this subobject"] },
+    { 'category':'logtags',   'severity':severity.LOW,     'members':[], 'option':'self-assign',
+        'description':'Assigning value to self',
+        'patterns':[r".*: warning: explicitly assigning value of .+ to itself"] },
+    { 'category':'logtags',   'severity':severity.LOW,     'members':[], 'option':'gnu-variable-sized-type-not-at-end',
+        'description':'GNU extension, variable sized type not at end',
+        'patterns':[r".*: warning: field '.+' with variable sized type '.+' not at the end of a struct or class"] },
+    { 'category':'logtags',   'severity':severity.LOW,     'members':[], 'option':'tautological-constant-out-of-range-compare',
+        'description':'Comparison of constant is always false/true',
+        'patterns':[r".*: comparison of .+ is always .+Wtautological-constant-out-of-range-compare"] },
+    { 'category':'logtags',   'severity':severity.LOW,     'members':[], 'option':'overloaded-virtual',
+        'description':'Hides overloaded virtual function',
+        'patterns':[r".*: '.+' hides overloaded virtual function"] },
+    { 'category':'logtags',   'severity':severity.LOW,     'members':[], 'option':'incompatible-pointer-types',
+        'description':'Incompatible pointer types',
+        'patterns':[r".*: warning: incompatible pointer types .+Wincompatible-pointer-types"] },
+    { 'category':'logtags',   'severity':severity.LOW,     'members':[], 'option':'asm-operand-widths',
+        'description':'ASM value size does not match register size',
+        'patterns':[r".*: warning: value size does not match register size specified by the constraint and modifier"] },
+    { 'category':'C/C++',   'severity':severity.LOW,     'members':[], 'option':'literal-suffix',
+        'description':'Needs a space between literal and string macro',
+        'patterns':[r".*: warning: invalid suffix on literal.+ requires a space .+Wliteral-suffix"] },
+    { 'category':'C/C++',   'severity':severity.LOW,     'members':[], 'option':'#warnings',
+        'description':'Warnings from #warning',
+        'patterns':[r".*: warning: .+-W#warnings"] },
+    { 'category':'C/C++',   'severity':severity.LOW,     'members':[], 'option':'absolute-value',
+        'description':'Using float/int absolute value function with int/float argument',
+        'patterns':[r".*: warning: using .+ absolute value function .+ when argument is .+ type .+Wabsolute-value"] },
+    { 'category':'C/C++',   'severity':severity.LOW,     'members':[], 'option':'',
+        'description':'Refers to implicitly defined namespace',
+        'patterns':[r".*: warning: using directive refers to implicitly-defined namespace .+"] },
+    { 'category':'C/C++',   'severity':severity.LOW,     'members':[], 'option':'-Winvalid-pp-token',
+        'description':'Invalid pp token',
+        'patterns':[r".*: warning: missing .+Winvalid-pp-token"] },
+
     { 'category':'C/C++',   'severity':severity.MEDIUM,     'members':[], 'option':'',
         'description':'Operator new returns NULL',
         'patterns':[r".*: warning: 'operator new' must not return NULL unless it is declared 'throw\(\)' .+"] },
     { 'category':'C/C++',   'severity':severity.MEDIUM,     'members':[], 'option':'',
         'description':'NULL used in arithmetic',
         'patterns':[r".*: warning: NULL used in arithmetic"] },
+    { 'category':'C/C++',   'severity':severity.MEDIUM,     'members':[], 'option':'header-guard',
+        'description':'Misspelled header guard',
+        'patterns':[r".*: warning: '.+' is used as a header guard .+ followed by .+ different macro"] },
+    { 'category':'C/C++',   'severity':severity.MEDIUM,     'members':[], 'option':'empty-body',
+        'description':'Empty loop body',
+        'patterns':[r".*: warning: .+ loop has empty body"] },
+    { 'category':'C/C++',   'severity':severity.MEDIUM,     'members':[], 'option':'enum-conversion',
+        'description':'Implicit conversion from enumeration type',
+        'patterns':[r".*: warning: implicit conversion from enumeration type '.+'"] },
+    { 'category':'C/C++',   'severity':severity.MEDIUM,     'members':[], 'option':'switch',
+        'description':'case value not in enumerated type',
+        'patterns':[r".*: warning: case value not in enumerated type '.+'"] },
+    { 'category':'C/C++',   'severity':severity.MEDIUM,     'members':[], 'option':'',
+        'description':'Undefined result',
+        'patterns':[r".*: warning: The result of .+ is undefined",
+                    r".*: warning: 'this' pointer cannot be null in well-defined C\+\+ code;",
+                    r".*: warning: shifting a negative signed value is undefined"] },
+    { 'category':'C/C++',   'severity':severity.MEDIUM,     'members':[], 'option':'',
+        'description':'Division by zero',
+        'patterns':[r".*: warning: Division by zero"] },
     { 'category':'C/C++',   'severity':severity.MEDIUM,     'members':[], 'option':'',
         'description':'Use of deprecated method',
         'patterns':[r".*: warning: '.+' is deprecated .+"] },
+    { 'category':'C/C++',   'severity':severity.MEDIUM,     'members':[], 'option':'',
+        'description':'Use of garbage or uninitialized value',
+        'patterns':[r".*: warning: .+ is a garbage value",
+                    r".*: warning: Function call argument is an uninitialized value",
+                    r".*: warning: Undefined or garbage value returned to caller",
+                    r".*: warning: Called .+ pointer is.+uninitialized",
+                    r".*: warning: Called .+ pointer is.+uninitalized",  # match a typo in compiler message
+                    r".*: warning: Use of zero-allocated memory",
+                    r".*: warning: Dereference of undefined pointer value",
+                    r".*: warning: Passed-by-value .+ contains uninitialized data",
+                    r".*: warning: Branch condition evaluates to a garbage value",
+                    r".*: warning: The .+ of .+ is an uninitialized value.",
+                    r".*: warning: .+ is used uninitialized whenever .+sometimes-uninitialized",
+                    r".*: warning: Assigned value is garbage or undefined"] },
+    { 'category':'C/C++',   'severity':severity.MEDIUM,     'members':[], 'option':'',
+        'description':'Result of malloc type incompatible with sizeof operand type',
+        'patterns':[r".*: warning: Result of '.+' is converted to .+ incompatible with sizeof operand type"] },
+    { 'category':'C/C++',   'severity':severity.MEDIUM,     'members':[], 'option':'',
+        'description':'Return value not checked',
+        'patterns':[r".*: warning: The return value from .+ is not checked"] },
+    { 'category':'C/C++',   'severity':severity.MEDIUM,     'members':[], 'option':'',
+        'description':'Possible heap pollution',
+        'patterns':[r".*: warning: .*Possible heap pollution from .+ type .+"] },
+    { 'category':'C/C++',   'severity':severity.MEDIUM,     'members':[], 'option':'',
+        'description':'Allocation size of 0 byte',
+        'patterns':[r".*: warning: Call to .+ has an allocation size of 0 byte"] },
+    { 'category':'C/C++',   'severity':severity.MEDIUM,     'members':[], 'option':'',
+        'description':'Result of malloc type incompatible with sizeof operand type',
+        'patterns':[r".*: warning: Result of '.+' is converted to .+ incompatible with sizeof operand type"] },
+
+    { 'category':'C/C++',   'severity':severity.HARMLESS,     'members':[], 'option':'',
+        'description':'Discarded qualifier from pointer target type',
+        'patterns':[r".*: warning: .+ discards '.+' qualifier from pointer target type"] },
+    { 'category':'C/C++',   'severity':severity.HARMLESS,     'members':[], 'option':'',
+        'description':'Use snprintf instead of sprintf',
+        'patterns':[r".*: warning: .*sprintf is often misused; please use snprintf"] },
+    { 'category':'C/C++',   'severity':severity.HARMLESS,     'members':[], 'option':'',
+        'description':'Unsupported optimizaton flag',
+        'patterns':[r".*: warning: optimization flag '.+' is not supported"] },
+    { 'category':'C/C++',   'severity':severity.HARMLESS,     'members':[], 'option':'',
+        'description':'Extra or missing parentheses',
+        'patterns':[r".*: warning: equality comparison with extraneous parentheses",
+                    r".*: warning: .+ within .+Wlogical-op-parentheses"] },
+    { 'category':'C/C++',   'severity':severity.HARMLESS,     'members':[], 'option':'mismatched-tags',
+        'description':'Mismatched class vs struct tags',
+        'patterns':[r".*: warning: '.+' defined as a .+ here but previously declared as a .+mismatched-tags",
+                    r".*: warning: .+ was previously declared as a .+mismatched-tags"] },
 
     # these next ones are to deal with formatting problems resulting from the log being mixed up by 'make -j'
     { 'category':'C/C++',   'severity':severity.SKIP,     'members':[], 'option':'',
@@ -388,6 +629,48 @@
         'description':'',
         'patterns':[r".*: warning: In file included from .+,"] },
 
+    # warnings from clang-tidy
+    { 'category':'C/C++',   'severity':severity.TIDY,     'members':[], 'option':'',
+        'description':'clang-tidy readability',
+        'patterns':[r".*: .+\[readability-.+\]$"] },
+    { 'category':'C/C++',   'severity':severity.TIDY,     'members':[], 'option':'',
+        'description':'clang-tidy c++ core guidelines',
+        'patterns':[r".*: .+\[cppcoreguidelines-.+\]$"] },
+    { 'category':'C/C++',   'severity':severity.TIDY,     'members':[], 'option':'',
+        'description':'clang-tidy google-runtime',
+        'patterns':[r".*: .+\[google-runtime-.+\]$"] },
+    { 'category':'C/C++',   'severity':severity.TIDY,     'members':[], 'option':'',
+        'description':'clang-tidy google-build',
+        'patterns':[r".*: .+\[google-build-.+\]$"] },
+    { 'category':'C/C++',   'severity':severity.TIDY,     'members':[], 'option':'',
+        'description':'clang-tidy google-explicit',
+        'patterns':[r".*: .+\[google-explicit-.+\]$"] },
+    { 'category':'C/C++',   'severity':severity.TIDY,     'members':[], 'option':'',
+        'description':'clang-tidy google-readability',
+        'patterns':[r".*: .+\[google-readability-.+\]$"] },
+    { 'category':'C/C++',   'severity':severity.TIDY,     'members':[], 'option':'',
+        'description':'clang-tidy google-global',
+        'patterns':[r".*: .+\[google-global-.+\]$"] },
+    { 'category':'C/C++',   'severity':severity.TIDY,     'members':[], 'option':'',
+        'description':'clang-tidy modernize',
+        'patterns':[r".*: .+\[modernize-.+\]$"] },
+    { 'category':'C/C++',   'severity':severity.TIDY,     'members':[], 'option':'',
+        'description':'clang-tidy misc',
+        'patterns':[r".*: .+\[misc-.+\]$"] },
+    { 'category':'C/C++',   'severity':severity.TIDY,     'members':[], 'option':'',
+        'description':'clang-tidy CERT',
+        'patterns':[r".*: .+\[cert-.+\]$"] },
+    { 'category':'C/C++',   'severity':severity.TIDY,     'members':[], 'option':'',
+        'description':'clang-tidy llvm',
+        'patterns':[r".*: .+\[llvm-.+\]$"] },
+    { 'category':'C/C++',   'severity':severity.TIDY,     'members':[], 'option':'',
+        'description':'clang-tidy clang-diagnostic',
+        'patterns':[r".*: .+\[clang-diagnostic-.+\]$"] },
+    { 'category':'C/C++',   'severity':severity.TIDY,     'members':[], 'option':'',
+        'description':'clang-tidy clang-analyzer',
+        'patterns':[r".*: .+\[clang-analyzer-.+\]$",
+                    r".*: Call Path : .+$"] },
+
     # catch-all for warnings this script doesn't know about yet
     { 'category':'C/C++',   'severity':severity.UNKNOWN,  'members':[], 'option':'',
         'description':'Unclassified/unrecognized warnings',
@@ -406,6 +689,7 @@
 
 def dumphtmlprologue(title):
     output('<html>\n<head>\n<title>' + title + '</title>\n<body>\n')
+    output('<a name="PageTop">')
     output(htmlbig(title))
     output('<p>\n')
 
@@ -416,16 +700,21 @@
     output(text,)
     output('</td></tr>')
 
-def begintable(text, backgroundcolor):
+def begintable(text, backgroundcolor, extraanchor):
     global anchor
     output('<table border="1" rules="cols" frame="box" width="100%" bgcolor="black"><tr bgcolor="' +
-        backgroundcolor + '"><a name="anchor' + str(anchor) + '"><td>')
+        backgroundcolor + '"><a name="anchor' + str(anchor) + '">')
+    if extraanchor:
+        output('<a name="' + extraanchor + '">')
+    output('<td>')
     output(htmlbig(text[0]) + '<br>')
     for i in text[1:]:
         output(i + '<br>')
     output('</td>')
-    output('<td width="100" bgcolor="grey"><a align="right" href="#anchor' + str(anchor-1) +
-        '">previous</a><br><a align="right" href="#anchor' + str(anchor+1) + '">next</a>')
+    output('<td width="100" bgcolor="grey">' +
+           '<a align="right" href="#PageTop">top</a><br>' +
+           '<a align="right" href="#anchor' + str(anchor-1) + '">previous</a><br>' +
+           '<a align="right" href="#anchor' + str(anchor+1) + '">next</a>')
     output('</td></a></tr>')
     anchor += 1
 
@@ -438,17 +727,49 @@
     known = 0
     unknown = 0
     for i in warnpatterns:
+        i['members'] = sorted(set(i['members']))
         if i['severity'] == severity.UNKNOWN:
             unknown += len(i['members'])
         elif i['severity'] != severity.SKIP:
             known += len(i['members'])
-    output('Number of classified warnings: <b>' + str(known) + '</b><br>' )
-    output('Number of unclassified warnings: <b>' + str(unknown) + '</b><br>')
+    output('\nNumber of classified warnings: <b>' + str(known) + '</b><br>' )
+    output('\nNumber of unclassified warnings: <b>' + str(unknown) + '</b><br>')
     total = unknown + known
-    output('Total number of warnings: <b>' + str(total) + '</b>')
+    output('\nTotal number of warnings: <b>' + str(total) + '</b>')
     if total < 1000:
         output('(low count may indicate incremental build)')
-    output('<p>')
+    output('\n<p>\n')
+
+# dump count of warnings of a given severity in TOC
+def dumpcount(sev):
+    first = True
+    for i in warnpatterns:
+      if i['severity'] == sev and len(i['members']) > 0:
+          if first:
+              output(headerforseverity(sev) + ':\n<blockquote>' +
+                     '<table border="1" frame="box" width="100%">')
+          output('<tr bgcolor="' + colorforseverity(sev) + '">' +
+                 '<td><a href="#' + i['anchor'] + '">' + descriptionfor(i) +
+                 ' (' + str(len(i['members'])) + ')</a></td></tr>\n')
+          first = False
+    if not first:
+        output('</table></blockquote>\n')
+
+# dump table of content, list of all warning patterns
+def dumptoc():
+    n = 1
+    output('<blockquote>\n')
+    for i in warnpatterns:
+        i['anchor'] = 'Warning' + str(n)
+        n += 1
+    dumpcount(severity.FIXMENOW)
+    dumpcount(severity.HIGH)
+    dumpcount(severity.MEDIUM)
+    dumpcount(severity.LOW)
+    dumpcount(severity.TIDY)
+    dumpcount(severity.HARMLESS)
+    dumpcount(severity.UNKNOWN)
+    output('</blockquote>\n<p>\n')
 
 def allpatterns(cat):
     pats = ''
@@ -470,7 +791,7 @@
         if len(i['members']) == 0 and i['severity'] != severity.SKIP:
             if tablestarted == False:
                 tablestarted = True
-                begintable(['Fixed warnings', 'No more occurences. Please consider turning these in to errors if possible, before they are reintroduced in to the build'], 'blue')
+                begintable(['Fixed warnings', 'No more occurences. Please consider turning these in to errors if possible, before they are reintroduced in to the build'], 'blue', '')
             tablerow(i['description'] + ' (' + allpatterns(i) + ') ' + i['option'])
     if tablestarted:
         endtable()
@@ -482,7 +803,7 @@
         header = [descriptionfor(cat),str(len(cat['members'])) + ' occurences:']
         if cat['option'] != '':
             header[1:1] = [' (related option: ' + cat['option'] +')']
-        begintable(header, colorforseverity(cat['severity']))
+        begintable(header, colorforseverity(cat['severity']), cat['anchor'])
         for i in cat['members']:
             tablerow(i)
         endtable()
@@ -553,10 +874,12 @@
 # dump the html output to stdout
 dumphtmlprologue('Warnings for ' + platformversion + ' - ' + targetproduct + ' - ' + targetvariant)
 dumpstats()
+dumptoc()
 dumpseverity(severity.FIXMENOW)
 dumpseverity(severity.HIGH)
 dumpseverity(severity.MEDIUM)
 dumpseverity(severity.LOW)
+dumpseverity(severity.TIDY)
 dumpseverity(severity.HARMLESS)
 dumpseverity(severity.UNKNOWN)
 dumpfixed()
diff --git a/tools/zipalign/Android.mk b/tools/zipalign/Android.mk
index 8c0240a..0775d43 100644
--- a/tools/zipalign/Android.mk
+++ b/tools/zipalign/Android.mk
@@ -35,4 +35,6 @@
 LOCAL_MODULE := zipalign
 LOCAL_MODULE_HOST_OS := darwin linux windows
 
+LOCAL_CFLAGS := -Werror
+
 include $(BUILD_HOST_EXECUTABLE)
diff --git a/tools/zipalign/ZipEntry.cpp b/tools/zipalign/ZipEntry.cpp
index a13b8d1..1031dbe 100644
--- a/tools/zipalign/ZipEntry.cpp
+++ b/tools/zipalign/ZipEntry.cpp
@@ -142,7 +142,7 @@
  *
  * Initializes the CDE and the LFH.
  */
-status_t ZipEntry::initFromExternal(const ZipFile* pZipFile,
+status_t ZipEntry::initFromExternal(const ZipFile*,
     const ZipEntry* pEntry)
 {
     /*
@@ -694,4 +694,3 @@
     if (mFileComment != NULL)
         ALOGD("  comment: '%s'\n", mFileComment);
 }
-
diff --git a/tools/zipalign/ZipEntry.h b/tools/zipalign/ZipEntry.h
index 129a759..eb68afe 100644
--- a/tools/zipalign/ZipEntry.h
+++ b/tools/zipalign/ZipEntry.h
@@ -290,7 +290,7 @@
             mExtraField(NULL),
             mFileComment(NULL)
         {}
-        virtual ~CentralDirEntry(void) {
+        ~CentralDirEntry(void) {
             delete[] mFileName;
             delete[] mExtraField;
             delete[] mFileComment;