diff --git a/CleanSpec.mk b/CleanSpec.mk
index b9f6e13..9d3fc23 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -398,6 +398,8 @@
 $(call add-clean-step, rm -rf $(HOST_OUT_TESTCASES))
 $(call add-clean-step, rm -rf $(TARGET_OUT_TESTCASES))
 
+$(call add-clean-step, rm -rf $(TARGET_OUT_ETC)/init)
+
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
 # ************************************************
diff --git a/core/Makefile b/core/Makefile
index c24bbe2..e41d09e 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -878,7 +878,7 @@
 $(if $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_SUPPORTS_VBOOT),$(hide) echo "vboot=$(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_SUPPORTS_VBOOT)" >> $(1))
 $(if $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_SUPPORTS_VBOOT),$(hide) echo "vboot_key=$(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_VBOOT_SIGNING_KEY)" >> $(1))
 $(if $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_SUPPORTS_VBOOT),$(hide) echo "vboot_subkey=$(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_VBOOT_SIGNING_SUBKEY)" >> $(1))
-$(if $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_SUPPORTS_VBOOT),$(hide) echo "futility=$(FUTILITY)" >> $(1))
+$(if $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_SUPPORTS_VBOOT),$(hide) echo "futility=$(notdir $(FUTILITY))" >> $(1))
 $(if $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_SUPPORTS_VBOOT),$(hide) echo "vboot_signer_cmd=$(VBOOT_SIGNER)" >> $(1))
 $(if $(BOARD_AVB_ENABLE),$(hide) echo "avb_signing_args=$(INTERNAL_AVB_SIGNING_ARGS)" >> $(1))
 $(if $(BOARD_AVB_ENABLE),$(hide) echo "avb_avbtool=$(AVBTOOL)" >> $(1))
@@ -1745,7 +1745,9 @@
   $(HOST_OUT_EXECUTABLES)/brillo_update_payload \
   $(HOST_OUT_EXECUTABLES)/lib/shflags/shflags \
   $(HOST_OUT_EXECUTABLES)/delta_generator \
-  $(BLK_ALLOC_TO_BASE_FS)
+  $(BLK_ALLOC_TO_BASE_FS) \
+  $(FUTILITY) \
+  $(VBOOT_SIGNER)
 
 # Shared libraries.
 OTATOOLS += \
@@ -1784,10 +1786,11 @@
 $(BUILT_OTATOOLS_PACKAGE): $(OTATOOLS) | $(ACP)
 	@echo "Package OTA tools: $@"
 	$(hide) rm -rf $@ $(zip_root)
-	$(hide) mkdir -p $(dir $@) $(zip_root)/bin $(zip_root)/framework $(zip_root)/releasetools $(zip_root)/system/extras/verity
+	$(hide) mkdir -p $(dir $@) $(zip_root)/bin $(zip_root)/framework $(zip_root)/releasetools $(zip_root)/system/extras/verity $(zip_root)/external/vboot_reference/tests/devkeys
 	$(call copy-files-with-structure,$(OTATOOLS),$(HOST_OUT)/,$(zip_root))
 	$(hide) $(ACP) $(HOST_OUT_JAVA_LIBRARIES)/VeritySigner.jar $(zip_root)/framework/
 	$(hide) $(ACP) -p system/extras/verity/build_verity_metadata.py $(zip_root)/system/extras/verity/
+	$(hide) $(ACP) -p -r external/vboot_reference/tests/devkeys/* $(zip_root)/external/vboot_reference/tests/devkeys
 	$(hide) $(ACP) -r -d -p build/tools/releasetools/* $(zip_root)/releasetools
 	$(hide) rm -rf $@ $(zip_root)/releasetools/*.pyc
 	$(hide) (cd $(zip_root) && zip -qryX $(abspath $@) *)
diff --git a/core/base_rules.mk b/core/base_rules.mk
index 1f55eae..e90c1bb 100644
--- a/core/base_rules.mk
+++ b/core/base_rules.mk
@@ -163,24 +163,24 @@
 endif
 my_module_path := $(patsubst %/,%,$(my_module_path))
 my_module_relative_path := $(strip $(LOCAL_MODULE_RELATIVE_PATH))
+ifdef LOCAL_IS_HOST_MODULE
+  partition_tag :=
+else
+ifeq (true,$(LOCAL_PROPRIETARY_MODULE))
+  partition_tag := _VENDOR
+else ifeq (true,$(LOCAL_OEM_MODULE))
+  partition_tag := _OEM
+else ifeq (true,$(LOCAL_ODM_MODULE))
+  partition_tag := _ODM
+else ifeq (NATIVE_TESTS,$(LOCAL_MODULE_CLASS))
+  partition_tag := _DATA
+else
+  # The definition of should-install-to-system will be different depending
+  # on which goal (e.g., sdk or just droid) is being built.
+  partition_tag := $(if $(call should-install-to-system,$(my_module_tags)),,_DATA)
+endif
+endif
 ifeq ($(my_module_path),)
-  ifdef LOCAL_IS_HOST_MODULE
-    partition_tag :=
-  else
-  ifeq (true,$(LOCAL_PROPRIETARY_MODULE))
-    partition_tag := _VENDOR
-  else ifeq (true,$(LOCAL_OEM_MODULE))
-    partition_tag := _OEM
-  else ifeq (true,$(LOCAL_ODM_MODULE))
-    partition_tag := _ODM
-  else ifeq (NATIVE_TESTS,$(LOCAL_MODULE_CLASS))
-    partition_tag := _DATA
-  else
-    # The definition of should-install-to-system will be different depending
-    # on which goal (e.g., sdk or just droid) is being built.
-    partition_tag := $(if $(call should-install-to-system,$(my_module_tags)),,_DATA)
-  endif
-  endif
   install_path_var := $(LOCAL_2ND_ARCH_VAR_PREFIX)$(my_prefix)OUT$(partition_tag)_$(LOCAL_MODULE_CLASS)
   ifeq (true,$(LOCAL_PRIVILEGED_MODULE))
     install_path_var := $(install_path_var)_PRIVILEGED
@@ -564,6 +564,7 @@
   $(LOCAL_STATIC_LIBRARIES) \
   $(LOCAL_WHOLE_STATIC_LIBRARIES) \
   $(LOCAL_SHARED_LIBRARIES) \
+  $(LOCAL_HEADER_LIBRARIES) \
   $(LOCAL_STATIC_JAVA_LIBRARIES) \
   $(LOCAL_JAVA_LIBRARIES)\
   $(LOCAL_JNI_SHARED_LIBRARIES))
@@ -585,7 +586,7 @@
 ## umbrella targets used to verify builds
 ###########################################################
 j_or_n :=
-ifneq (,$(filter EXECUTABLES SHARED_LIBRARIES STATIC_LIBRARIES NATIVE_TESTS,$(LOCAL_MODULE_CLASS)))
+ifneq (,$(filter EXECUTABLES SHARED_LIBRARIES STATIC_LIBRARIES HEADER_LIBRARIES NATIVE_TESTS,$(LOCAL_MODULE_CLASS)))
 j_or_n := native
 else
 ifneq (,$(filter JAVA_LIBRARIES APPS,$(LOCAL_MODULE_CLASS)))
diff --git a/core/binary.mk b/core/binary.mk
index 304a72e..44f0e95 100644
--- a/core/binary.mk
+++ b/core/binary.mk
@@ -40,6 +40,7 @@
 my_static_libraries := $(LOCAL_STATIC_LIBRARIES)
 my_whole_static_libraries := $(LOCAL_WHOLE_STATIC_LIBRARIES)
 my_shared_libraries := $(LOCAL_SHARED_LIBRARIES)
+my_header_libraries := $(LOCAL_HEADER_LIBRARIES)
 my_cflags := $(LOCAL_CFLAGS)
 my_conlyflags := $(LOCAL_CONLYFLAGS)
 my_cppflags := $(LOCAL_CPPFLAGS)
@@ -320,6 +321,7 @@
 my_src_files += $(LOCAL_SRC_FILES_$($(my_prefix)OS)) $(LOCAL_SRC_FILES_$($(my_prefix)OS)_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH))
 my_static_libraries += $(LOCAL_STATIC_LIBRARIES_$($(my_prefix)OS))
 my_shared_libraries += $(LOCAL_SHARED_LIBRARIES_$($(my_prefix)OS))
+my_header_libraries += $(LOCAL_HEADER_LIBRARIES_$($(my_prefix)OS))
 my_cflags += $(LOCAL_CFLAGS_$($(my_prefix)OS))
 my_cppflags += $(LOCAL_CPPFLAGS_$($(my_prefix)OS))
 my_ldflags += $(LOCAL_LDFLAGS_$($(my_prefix)OS))
@@ -443,6 +445,7 @@
 # arch-specific static libraries go first so that generic ones can depend on them
 my_static_libraries := $(LOCAL_STATIC_LIBRARIES_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) $(LOCAL_STATIC_LIBRARIES_$(my_32_64_bit_suffix)) $(my_static_libraries)
 my_whole_static_libraries := $(LOCAL_WHOLE_STATIC_LIBRARIES_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) $(LOCAL_WHOLE_STATIC_LIBRARIES_$(my_32_64_bit_suffix)) $(my_whole_static_libraries)
+my_header_libraries := $(LOCAL_HEADER_LIBRARIES_$($(my_prefix)$(LOCAL_2ND_ARCH_VAR_PREFIX)ARCH)) $(LOCAL_HEADER_LIBRARIES_$(my_32_64_bit_suffix)) $(my_header_libraries)
 
 include $(BUILD_SYSTEM)/cxx_stl_setup.mk
 
@@ -1396,7 +1399,9 @@
     $(foreach l, $(installed_shared_library_module_names), \
       $(call intermediates-dir-for,SHARED_LIBRARIES,$(l),$(my_kind),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))/export_includes) \
     $(foreach l, $(my_static_libraries) $(my_whole_static_libraries), \
-      $(call intermediates-dir-for,STATIC_LIBRARIES,$(l),$(my_kind),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))/export_includes))
+      $(call intermediates-dir-for,STATIC_LIBRARIES,$(l),$(my_kind),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))/export_includes) \
+    $(foreach l, $(my_header_libraries), \
+      $(call intermediates-dir-for,HEADER_LIBRARIES,$(l),$(my_kind),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))/export_includes))
 $(import_includes): PRIVATE_IMPORT_EXPORT_INCLUDES := $(import_includes_deps)
 $(import_includes) : $(import_includes_deps)
 	@echo Import includes file: $@
@@ -1430,10 +1435,12 @@
    $(foreach l,$(my_whole_static_libraries) $(my_static_libraries), \
      $(call intermediates-dir-for,STATIC_LIBRARIES,$(l),$(my_kind),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))/link_type))
 ifneq ($(LOCAL_MODULE_CLASS),STATIC_LIBRARIES)
+ifneq ($(LOCAL_MODULE_CLASS),HEADER_LIBRARIES)
 my_link_type_deps += $(strip \
    $(foreach l,$(my_shared_libraries), \
      $(call intermediates-dir-for,SHARED_LIBRARIES,$(l),$(my_kind),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))/link_type))
 endif
+endif
 $(my_link_type): PRIVATE_DEPS := $(my_link_type_deps)
 $(my_link_type): PRIVATE_MODULE := $(LOCAL_MODULE)
 $(my_link_type): PRIVATE_MAKEFILE := $(LOCAL_MODULE_MAKEFILE)
@@ -1791,10 +1798,14 @@
 export_include_deps += $(strip \
    $(foreach l,$(LOCAL_EXPORT_STATIC_LIBRARY_HEADERS), \
      $(call intermediates-dir-for,STATIC_LIBRARIES,$(l),$(my_kind),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))/export_includes))
+# Re-export requested headers from header libraries.
+export_include_deps += $(strip \
+   $(foreach l,$(LOCAL_EXPORT_HEADER_LIBRARY_HEADERS), \
+     $(call intermediates-dir-for,HEADER_LIBRARIES,$(l),$(my_kind),,$(LOCAL_2ND_ARCH_VAR_PREFIX),$(my_host_cross))/export_includes))
 $(export_includes): PRIVATE_REEXPORTED_INCLUDES := $(export_include_deps)
 # By adding $(my_generated_sources) it makes sure the headers get generated
 # before any dependent source files get compiled.
-$(export_includes) : $(my_export_c_include_deps) $(my_generated_sources) $(export_include_deps)
+$(export_includes) : $(my_export_c_include_deps) $(my_generated_sources) $(export_include_deps) $(LOCAL_EXPORT_C_INCLUDE_DEPS)
 	@echo Export includes file: $< -- $@
 	$(hide) mkdir -p $(dir $@) && rm -f $@.tmp && touch $@.tmp
 ifdef my_export_c_include_dirs
diff --git a/core/clear_vars.mk b/core/clear_vars.mk
index bae38c5..ae037b3 100644
--- a/core/clear_vars.mk
+++ b/core/clear_vars.mk
@@ -62,10 +62,12 @@
 LOCAL_DROIDDOC_STUB_OUT_DIR:=
 LOCAL_DROIDDOC_TEMPLATE_DIR:=
 LOCAL_DROIDDOC_USE_STANDARD_DOCLET:=
+LOCAL_DX_FLAGS:=
 LOCAL_EMMA_COVERAGE_FILTER:=
 LOCAL_EMMA_INSTRUMENT:=
 LOCAL_EXPORT_C_INCLUDE_DEPS:=
 LOCAL_EXPORT_C_INCLUDE_DIRS:=
+LOCAL_EXPORT_HEADER_LIBRARY_HEADERS:=
 LOCAL_EXPORT_PACKAGE_RESOURCES:=
 LOCAL_EXPORT_SHARED_LIBRARY_HEADERS:=
 LOCAL_EXPORT_STATIC_LIBRARY_HEADERS:=
@@ -82,6 +84,7 @@
 LOCAL_GROUP_STATIC_LIBRARIES:=
 LOCAL_GTEST:=true
 LOCAL_HAL_STATIC_LIBRARIES:=
+LOCAL_HEADER_LIBRARIES:=
 LOCAL_INIT_RC:=
 LOCAL_INSTALLED_MODULE:=
 LOCAL_INSTALLED_MODULE_STEM:=
@@ -94,8 +97,7 @@
 LOCAL_JACK_CLASSPATH:=
 LOCAL_JACK_COVERAGE_EXCLUDE_FILTER:=
 LOCAL_JACK_COVERAGE_INCLUDE_FILTER:=
-# full or incremental
-LOCAL_JACK_ENABLED:=full
+LOCAL_JACK_ENABLED:=$(DEFAULT_JACK_ENABLED) # '' (ie disabled), disabled, full, incremental
 LOCAL_JACK_FLAGS:=
 LOCAL_JACK_PLUGIN:=
 LOCAL_JACK_PLUGIN_PATH:=
@@ -164,6 +166,7 @@
 LOCAL_PICKUP_FILES:=
 LOCAL_POST_INSTALL_CMD:=
 LOCAL_POST_LINK_CMD:=
+LOCAL_PREBUILT_COVERAGE_ARCHIVE:=
 LOCAL_PREBUILT_EXECUTABLES:=
 LOCAL_PREBUILT_JAVA_LIBRARIES:=
 LOCAL_PREBUILT_JNI_LIBS:=
@@ -239,6 +242,7 @@
 LOCAL_CLANG_$(TARGET_ARCH):=
 LOCAL_CPPFLAGS_$(TARGET_ARCH):=
 LOCAL_GENERATED_SOURCES_$(TARGET_ARCH):=
+LOCAL_HEADER_LIBRARIES_$(TARGET_ARCH):=
 LOCAL_LDFLAGS_$(TARGET_ARCH):=
 LOCAL_PACK_MODULE_RELOCATIONS_$(TARGET_ARCH):=
 LOCAL_PREBUILT_JNI_LIBS_$(TARGET_ARCH):=
@@ -260,6 +264,7 @@
 LOCAL_CLANG_$(TARGET_2ND_ARCH):=
 LOCAL_CPPFLAGS_$(TARGET_2ND_ARCH):=
 LOCAL_GENERATED_SOURCES_$(TARGET_2ND_ARCH):=
+LOCAL_HEADER_LIBRARIES_$(TARGET_2ND_ARCH):=
 LOCAL_LDFLAGS_$(TARGET_2ND_ARCH):=
 LOCAL_PACK_MODULE_RELOCATIONS_$(TARGET_2ND_ARCH):=
 LOCAL_PREBUILT_JNI_LIBS_$(TARGET_2ND_ARCH):=
@@ -281,6 +286,7 @@
 LOCAL_CLANG_LDFLAGS_$(HOST_ARCH):=
 LOCAL_CPPFLAGS_$(HOST_ARCH):=
 LOCAL_GENERATED_SOURCES_$(HOST_ARCH):=
+LOCAL_HEADER_LIBRARIES_$(HOST_ARCH):=
 LOCAL_LDFLAGS_$(HOST_ARCH):=
 LOCAL_REQUIRED_MODULES_$(HOST_ARCH):=
 LOCAL_SHARED_LIBRARIES_$(HOST_ARCH):=
@@ -299,6 +305,7 @@
 LOCAL_CLANG_LDFLAGS_$(HOST_2ND_ARCH):=
 LOCAL_CPPFLAGS_$(HOST_2ND_ARCH):=
 LOCAL_GENERATED_SOURCES_$(HOST_2ND_ARCH):=
+LOCAL_HEADER_LIBRARIES_$(HOST_2ND_ARCH):=
 LOCAL_LDFLAGS_$(HOST_2ND_ARCH):=
 LOCAL_REQUIRED_MODULES_$(HOST_2ND_ARCH):=
 LOCAL_SHARED_LIBRARIES_$(HOST_2ND_ARCH):=
@@ -313,6 +320,7 @@
 LOCAL_C_INCLUDES_$(HOST_OS):=
 LOCAL_CPPFLAGS_$(HOST_OS):=
 LOCAL_GENERATED_SOURCES_$(HOST_OS):=
+LOCAL_HEADER_LIBRARIES_$(HOST_OS):=
 LOCAL_LDFLAGS_$(HOST_OS):=
 LOCAL_LDLIBS_$(HOST_OS):=
 LOCAL_REQUIRED_MODULES_$(HOST_OS):=
@@ -326,6 +334,7 @@
 LOCAL_C_INCLUDES_$(HOST_CROSS_OS):=
 LOCAL_CPPFLAGS_$(HOST_CROSS_OS):=
 LOCAL_GENERATED_SOURCES_$(HOST_CROSS_OS):=
+LOCAL_HEADER_LIBRARIES_$(HOST_CROSS_OS):=
 LOCAL_LDFLAGS_$(HOST_CROSS_OS):=
 LOCAL_LDLIBS_$(HOST_CROSS_OS):=
 LOCAL_REQUIRED_MODULES_$(HOST_CROSS_OS):=
@@ -365,6 +374,8 @@
 LOCAL_CPPFLAGS_64:=
 LOCAL_GENERATED_SOURCES_32:=
 LOCAL_GENERATED_SOURCES_64:=
+LOCAL_HEADER_LIBRARIES_32:=
+LOCAL_HEADER_LIBRARIES_64:=
 LOCAL_INIT_RC_32:=
 LOCAL_INIT_RC_64:=
 LOCAL_LDFLAGS_32:=
diff --git a/core/combo/javac.mk b/core/combo/javac.mk
index 9042d83..7f66ea8 100644
--- a/core/combo/javac.mk
+++ b/core/combo/javac.mk
@@ -9,6 +9,11 @@
 #   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/config.mk b/core/config.mk
index dd18d52..8fa7d98 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -92,6 +92,7 @@
 BUILD_HOST_STATIC_LIBRARY:= $(BUILD_SYSTEM)/host_static_library.mk
 BUILD_HOST_SHARED_LIBRARY:= $(BUILD_SYSTEM)/host_shared_library.mk
 BUILD_STATIC_LIBRARY:= $(BUILD_SYSTEM)/static_library.mk
+BUILD_HEADER_LIBRARY:= $(BUILD_SYSTEM)/header_library.mk
 BUILD_AUX_STATIC_LIBRARY:= $(BUILD_SYSTEM)/aux_static_library.mk
 BUILD_AUX_EXECUTABLE:= $(BUILD_SYSTEM)/aux_executable.mk
 BUILD_SHARED_LIBRARY:= $(BUILD_SYSTEM)/shared_library.mk
@@ -496,6 +497,8 @@
 SOONG_ZIP := $(SOONG_HOST_OUT_EXECUTABLES)/soong_zip
 ZIP2ZIP := $(SOONG_HOST_OUT_EXECUTABLES)/zip2zip
 
+JAVAC_FILTER := $(SOONG_HOST_OUT_EXECUTABLES)/soong_javac_filter
+
 # Always use prebuilts for ckati and makeparallel
 prebuilt_build_tools := prebuilts/build-tools
 ifeq ($(filter address,$(SANITIZE_HOST)),)
@@ -601,10 +604,16 @@
 MKTARBALL := build/tools/mktarball.sh
 TUNE2FS := $(HOST_OUT_EXECUTABLES)/tune2fs$(HOST_EXECUTABLE_SUFFIX)
 JARJAR := $(HOST_OUT_JAVA_LIBRARIES)/jarjar.jar
+DESUGAR := $(HOST_OUT_JAVA_LIBRARIES)/desugar.jar
 DATA_BINDING_COMPILER := $(HOST_OUT_JAVA_LIBRARIES)/databinding-compiler.jar
 FAT16COPY := build/tools/fat16copy.py
 CHECK_LINK_TYPE := build/tools/check_link_type.py
 
+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)
@@ -621,7 +630,7 @@
 VERITY_SIGNER := $(HOST_OUT_EXECUTABLES)/verity_signer
 BUILD_VERITY_TREE := $(HOST_OUT_EXECUTABLES)/build_verity_tree
 BOOT_SIGNER := $(HOST_OUT_EXECUTABLES)/boot_signer
-FUTILITY := prebuilts/misc/$(BUILD_OS)-$(HOST_PREBUILT_ARCH)/futility/futility
+FUTILITY := $(HOST_OUT_EXECUTABLES)/futility-host
 VBOOT_SIGNER := prebuilts/misc/scripts/vboot_signer/vboot_signer.sh
 FEC := $(HOST_OUT_EXECUTABLES)/fec
 
diff --git a/core/config_sanitizers.mk b/core/config_sanitizers.mk
index 57a7993..729ef48 100644
--- a/core/config_sanitizers.mk
+++ b/core/config_sanitizers.mk
@@ -159,8 +159,8 @@
   # LLVM is not set up to do this on a function basis, so force Thumb on the
   # entire module.
   LOCAL_ARM_MODE := thumb
-  my_cflags += -flto -fsanitize-cfi-cross-dso -fvisibility=default
-  my_ldflags += -flto -fsanitize-cfi-cross-dso -fsanitize=cfi -Wl,-plugin-opt,O1 -Wl,-export-dynamic-symbol=__cfi_check
+  my_cflags += $(CFI_EXTRA_CFLAGS)
+  my_ldflags += $(CFI_EXTRA_LDFLAGS)
   my_arflags += --plugin $(LLVM_PREBUILTS_PATH)/../lib64/LLVMgold.so
   # Workaround for b/33678192. CFI jumptables need Thumb2 codegen.  Revert when
   # Clang is updated past r290384.
diff --git a/core/configure_local_jack.mk b/core/configure_local_jack.mk
index 446bab7..2270c88 100644
--- a/core/configure_local_jack.mk
+++ b/core/configure_local_jack.mk
@@ -21,9 +21,16 @@
 LOCAL_JACK_ENABLED := $(strip $(LOCAL_JACK_ENABLED))
 LOCAL_MODULE := $(strip $(LOCAL_MODULE))
 
-ifeq ($(filter full incremental,$(LOCAL_JACK_ENABLED)),)
+ifneq ($(LOCAL_JACK_ENABLED),full)
+ifneq ($(LOCAL_JACK_ENABLED),incremental)
+ifdef LOCAL_JACK_ENABLED
+ifneq ($(LOCAL_JACK_ENABLED),disabled)
 $(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/definitions.mk b/core/definitions.mk
index da5aff1..e9ec26a 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -850,18 +850,37 @@
 
 
 ###########################################################
-## Color-coded warnings and errors in build rules
-##
-## $(1): message to print
+## Color-coded warnings and errors
+## Use echo-(warning|error) in a build rule
+## Use pretty-(warning|error) instead of $(warning)/$(error)
 ###########################################################
+ESC_BOLD := \e[1m
+ESC_WARNING := \e[35m
+ESC_ERROR := \e[31m
+ESC_RESET := \e[0m
+
+# $(1): path (and optionally line) information
+# $(2): message to print
 define echo-warning
-echo -e "\e[1;35mwarning:\e[0m \e[1m" $(1) "\e[0m\n"
+echo -e "$(ESC_BOLD)$(1): $(ESC_WARNING)warning:$(ESC_RESET)$(ESC_BOLD)" $(2) "$(ESC_RESET)" >&2
 endef
 
+# $(1): path (and optionally line) information
+# $(2): message to print
 define echo-error
-echo -e "\e[1;31merror:\e[0m \e[1m" $(1) "\e[0m\n"
+echo -e "$(ESC_BOLD)$(1): $(ESC_ERROR)error:$(ESC_RESET)$(ESC_BOLD)" $(2) "$(ESC_RESET)" >&2
 endef
 
+# $(1): message to print
+define pretty-warning
+$(shell $(call echo-warning,$(LOCAL_MODULE_MAKEFILE),$(LOCAL_MODULE): $(1)))
+endef
+
+# $(1): message to print
+define pretty-error
+$(shell $(call echo-error,$(LOCAL_MODULE_MAKEFILE),$(LOCAL_MODULE): $(1)))
+$(error done)
+endef
 
 ###########################################################
 ## Package filtering
@@ -2217,7 +2236,7 @@
 $(hide) tr ' ' '\n' < $(PRIVATE_CLASS_INTERMEDIATES_DIR)/java-source-list \
     | $(NORMALIZE_PATH) | sort -u > $(PRIVATE_CLASS_INTERMEDIATES_DIR)/java-source-list-uniq
 $(hide) if [ -s $(PRIVATE_CLASS_INTERMEDIATES_DIR)/java-source-list-uniq ] ; then \
-    $(1) -encoding UTF-8 \
+    ( $(1) -encoding UTF-8 \
     $(if $(findstring true,$(PRIVATE_WARNINGS_ENABLE)),$(xlint_unchecked),) \
     $(2) \
     $(addprefix -classpath ,$(strip \
@@ -2226,7 +2245,7 @@
     -extdirs "" -d $(PRIVATE_CLASS_INTERMEDIATES_DIR) \
     $(PRIVATE_JAVACFLAGS) \
     \@$(PRIVATE_CLASS_INTERMEDIATES_DIR)/java-source-list-uniq \
-    || ( rm -rf $(PRIVATE_CLASS_INTERMEDIATES_DIR) ; exit 41 ) \
+    || ( rm -rf $(PRIVATE_CLASS_INTERMEDIATES_DIR) ; exit 41 ) ) 2>&1 | $(JAVAC_FILTER); \
 fi
 $(if $(PRIVATE_JAVA_LAYERS_FILE), $(hide) build/tools/java-layers.py \
     $(PRIVATE_JAVA_LAYERS_FILE) \@$(PRIVATE_CLASS_INTERMEDIATES_DIR)/java-source-list-uniq,)
@@ -2353,8 +2372,9 @@
 $(hide) tr ' ' '\n' < $@.java-source-list \
     | sort -u > $@.java-source-list-uniq
 $(hide) if [ -s $@.java-source-list-uniq ] ; then \
-	$(call call-jack) \
+	$(call call-jack,$(PRIVATE_JACK_EXTRA_ARGS)) \
 	    $(strip $(PRIVATE_JACK_FLAGS)) \
+	    $(strip $(PRIVATE_JACK_DEBUG_FLAGS)) \
 	    $(addprefix --classpath ,$(strip \
 	        $(call normalize-path-list,$(call reverse-list,$(PRIVATE_STATIC_JACK_LIBRARIES)) $(PRIVATE_JACK_SHARED_LIBRARIES)))) \
 	    -D jack.import.resource.policy=keep-first \
@@ -2514,6 +2534,43 @@
     $(addprefix -ix , $(PRIVATE_EMMA_COVERAGE_FILTER))
 endef
 
+define desugar-classpath
+$(filter-out -classpath -bootclasspath "",$(subst :,$(space),$(1)))
+endef
+
+define desugar-classes-jar
+@echo Desugar: $@
+@mkdir -p $(dir $@)
+$(hide) rm -f $@ $@.tmp
+$(hide) java -jar $(DESUGAR) \
+    $(addprefix --bootclasspath_entry ,$(call desugar-bootclasspath,$(PRIVATE_BOOTCLASSPATH))) \
+    $(addprefix --classpath_entry ,$(PRIVATE_ALL_JAVA_LIBRARIES)) \
+    --min_sdk_version 24 --allow_empty_bootclasspath \
+    $(if $(filter --core-library,$(PRIVATE_DX_FLAGS)),--core_library) \
+    -i $< -o $@.tmp
+    mv $@.tmp $@
+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.
@@ -2533,6 +2590,17 @@
 $(call create-empty-package-at,$@)
 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.
@@ -2751,13 +2819,6 @@
 $(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
-
 # The same as copy-file-to-target, but strip out "# comment"-style
 # comments (for config files and such).
 define copy-file-to-target-strip-comments
@@ -2788,12 +2849,6 @@
 $(copy-file-to-target)
 endef
 
-# Copy a prebuilt file to a target location, using zipalign on it.
-define transform-prebuilt-to-target-with-zipalign
-@echo "$($(PRIVATE_PREFIX)DISPLAY) Prebuilt APK: $(PRIVATE_MODULE) ($@)"
-$(copy-file-to-target-with-zipalign)
-endef
-
 # Copy a prebuilt file to a target location, stripping "# comment" comments.
 define transform-prebuilt-to-target-strip-comments
 @echo "$($(PRIVATE_PREFIX)DISPLAY) Prebuilt: $(PRIVATE_MODULE) ($@)"
diff --git a/core/dpi_specific_apk.mk b/core/dpi_specific_apk.mk
index bcc5c18..1ca01d5 100644
--- a/core/dpi_specific_apk.mk
+++ b/core/dpi_specific_apk.mk
@@ -31,9 +31,15 @@
 $(built_dpi_apk): $(additional_certificates)
 $(built_dpi_apk): PRIVATE_ADDITIONAL_CERTIFICATES := $(additional_certificates)
 
+$(built_dpi_apk): PRIVATE_SOURCE_ARCHIVE :=
 ifneq ($(full_classes_jar),)
-$(built_dpi_apk): PRIVATE_JACK_INTERMEDIATES_DIR := $(intermediates.COMMON)/jack-rsc
 $(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): $(built_dex)
 else
 $(built_dpi_apk): PRIVATE_DEX_FILE :=
@@ -46,7 +52,9 @@
 $(built_dpi_apk) : $(AAPT)
 $(built_dpi_apk) : $(all_res_assets) $(jni_shared_libraries) $(full_android_manifest)
 	@echo "target Package: $(PRIVATE_MODULE) ($@)"
-	$(create-empty-package)
+	$(if $(PRIVATE_SOURCE_ARCHIVE),\
+	  $(call initialize-package-file,$(PRIVATE_SOURCE_ARCHIVE),$@),\
+	  $(create-empty-package))
 	$(add-assets-to-package)
 ifneq ($(jni_shared_libraries),)
 	$(add-jni-shared-libs-to-package)
@@ -56,8 +64,10 @@
 	$(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/envsetup.mk b/core/envsetup.mk
index b0f35b1..64668c5 100644
--- a/core/envsetup.mk
+++ b/core/envsetup.mk
@@ -504,7 +504,7 @@
 TARGET_INSTALLER_SYSTEM_OUT := $(TARGET_INSTALLER_OUT)/root/system
 
 COMMON_MODULE_CLASSES := TARGET-NOTICE_FILES HOST-NOTICE_FILES HOST-JAVA_LIBRARIES
-PER_ARCH_MODULE_CLASSES := SHARED_LIBRARIES STATIC_LIBRARIES EXECUTABLES GYP RENDERSCRIPT_BITCODE NATIVE_TESTS
+PER_ARCH_MODULE_CLASSES := SHARED_LIBRARIES STATIC_LIBRARIES EXECUTABLES GYP RENDERSCRIPT_BITCODE NATIVE_TESTS HEADER_LIBRARIES
 
 ifeq (,$(strip $(DIST_DIR)))
   DIST_DIR := $(OUT_DIR)/dist
diff --git a/core/header_library.mk b/core/header_library.mk
new file mode 100644
index 0000000..5144679
--- /dev/null
+++ b/core/header_library.mk
@@ -0,0 +1,72 @@
+$(call record-module-type,HEADER_LIBRARY)
+ifdef LOCAL_IS_HOST_MODULE
+  my_prefix := HOST_
+  LOCAL_HOST_PREFIX :=
+else
+  my_prefix := TARGET_
+endif
+include $(BUILD_SYSTEM)/multilib.mk
+
+ifndef my_module_multilib
+  # libraries default to building for both architecturess
+  my_module_multilib := both
+endif
+
+LOCAL_2ND_ARCH_VAR_PREFIX :=
+include $(BUILD_SYSTEM)/module_arch_supported.mk
+
+ifeq ($(my_module_arch_supported),true)
+  include $(BUILD_SYSTEM)/header_library_internal.mk
+endif
+
+ifdef $(my_prefix)2ND_ARCH
+  LOCAL_2ND_ARCH_VAR_PREFIX := $($(my_prefix)2ND_ARCH_VAR_PREFIX)
+  include $(BUILD_SYSTEM)/module_arch_supported.mk
+
+  ifeq ($(my_module_arch_supported),true)
+    # Build for 2ND_ARCH
+    OVERRIDE_BUILT_MODULE_PATH :=
+    LOCAL_BUILT_MODULE :=
+    LOCAL_INSTALLED_MODULE :=
+    LOCAL_INTERMEDIATE_TARGETS :=
+    include $(BUILD_SYSTEM)/header_library_internal.mk
+  endif
+  LOCAL_2ND_ARCH_VAR_PREFIX :=
+endif # 2ND_ARCH
+
+ifdef LOCAL_IS_HOST_MODULE
+  ifdef HOST_CROSS_OS
+    my_prefix := HOST_CROSS_
+    LOCAL_HOST_PREFIX := $(my_prefix)
+
+    include $(BUILD_SYSTEM)/module_arch_supported.mk
+
+    ifeq ($(my_module_arch_supported),true)
+      # Build for 2ND_ARCH
+      OVERRIDE_BUILT_MODULE_PATH :=
+      LOCAL_BUILT_MODULE :=
+      LOCAL_INSTALLED_MODULE :=
+      LOCAL_INTERMEDIATE_TARGETS :=
+      include $(BUILD_SYSTEM)/header_library_internal.mk
+    endif
+
+    ifdef HOST_CROSS_2ND_ARCH
+      LOCAL_2ND_ARCH_VAR_PREFIX := $(HOST_CROSS_2ND_ARCH_VAR_PREFIX)
+      include $(BUILD_SYSTEM)/module_arch_supported.mk
+
+      ifeq ($(my_module_arch_supported),true)
+        # Build for HOST_CROSS_2ND_ARCH
+        OVERRIDE_BUILT_MODULE_PATH :=
+        LOCAL_BUILT_MODULE :=
+        LOCAL_INSTALLED_MODULE :=
+        LOCAL_INTERMEDIATE_TARGETS :=
+        include $(BUILD_SYSTEM)/header_library_internal.mk
+      endif
+      LOCAL_2ND_ARCH_VAR_PREFIX :=
+    endif
+
+    LOCAL_HOST_PREFIX :=
+  endif
+endif
+
+my_module_arch_supported :=
diff --git a/core/header_library_internal.mk b/core/header_library_internal.mk
new file mode 100644
index 0000000..35ee1bc
--- /dev/null
+++ b/core/header_library_internal.mk
@@ -0,0 +1,21 @@
+###########################################################
+## Standard rules for building a header library.
+##
+## Additional inputs from base_rules.make:
+## None.
+###########################################################
+
+LOCAL_MODULE_CLASS := HEADER_LIBRARIES
+LOCAL_UNINSTALLABLE_MODULE := true
+ifneq ($(strip $(LOCAL_MODULE_STEM)$(LOCAL_BUILT_MODULE_STEM)),)
+$(error $(LOCAL_PATH): Cannot set module stem for a library)
+endif
+
+include $(BUILD_SYSTEM)/binary.mk
+
+ifneq ($(strip $(all_objects)),)
+$(call pretty-error,Header libraries may not have any sources)
+endif
+
+$(LOCAL_BUILT_MODULE):
+	$(hide) touch $@
diff --git a/core/host_dalvik_java_library.mk b/core/host_dalvik_java_library.mk
index 64b610e..503f67b 100644
--- a/core/host_dalvik_java_library.mk
+++ b/core/host_dalvik_java_library.mk
@@ -31,27 +31,39 @@
 #######################################
 include $(BUILD_SYSTEM)/host_java_library_common.mk
 #######################################
+ifdef LOCAL_JACK_ENABLED
 ifeq ($(LOCAL_IS_STATIC_JAVA_LIBRARY),true)
   # For static library, $(LOCAL_BUILT_MODULE) is $(full_classes_jack).
   LOCAL_BUILT_MODULE_STEM := classes.jack
 endif
+endif
 
 ifneq ($(LOCAL_NO_STANDARD_LIBRARIES),true)
   LOCAL_JAVA_LIBRARIES :=  core-oj-hostdex core-libart-hostdex $(LOCAL_JAVA_LIBRARIES)
 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
+ifdef LOCAL_JACK_ENABLED
 LOCAL_CHECKED_MODULE := $(jack_check_timestamp)
+else
+LOCAL_CHECKED_MODULE := $(full_classes_compiled_jar)
+endif
 endif
 
 #######################################
@@ -65,6 +77,63 @@
 
 $(cleantarget): PRIVATE_CLEAN_FILES += $(intermediates.COMMON)
 
+ifndef LOCAL_JACK_ENABLED
+
+$(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) \
+        $(NORMALIZE_PATH) \
+        $(JAVAC_FILTER) \
+        $(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 $< $@
+
+ifeq ($(LOCAL_IS_STATIC_JAVA_LIBRARY),true)
+# No dex; all we want are the .class files with resources.
+$(LOCAL_BUILT_MODULE) : $(java_resource_sources)
+$(LOCAL_BUILT_MODULE) : $(full_classes_jar)
+	@echo "host Static Jar: $(PRIVATE_MODULE) ($@)"
+	$(copy-file-to-target)
+
+else # !LOCAL_IS_STATIC_JAVA_LIBRARY
+$(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)
+
+endif # !LOCAL_IS_STATIC_JAVA_LIBRARY
+else # LOCAL_JACK_ENABLED
 $(LOCAL_INTERMEDIATE_TARGETS): \
   PRIVATE_JACK_INTERMEDIATES_DIR := $(intermediates.COMMON)/jack-rsc
 
@@ -116,6 +185,7 @@
 $(jack_check_timestamp): $(jack_all_deps) | setup-jack-server
 	@echo Checking build with Jack: $@
 	$(jack-check-java)
+endif # LOCAL_JACK_ENABLED
 
 USE_CORE_LIB_BOOTCLASSPATH :=
 
diff --git a/core/host_java_library.mk b/core/host_java_library.mk
index cc26d7c..ba2999f 100644
--- a/core/host_java_library.mk
+++ b/core/host_java_library.mk
@@ -69,6 +69,7 @@
         $(jar_manifest_file) \
         $(proto_java_sources_file_stamp) \
         $(NORMALIZE_PATH) \
+        $(JAVAC_FILTER) \
         $(LOCAL_ADDITIONAL_DEPENDENCIES)
 	$(transform-host-java-to-package)
 
diff --git a/core/java.mk b/core/java.mk
index baf097b..d1ac6c7 100644
--- a/core/java.mk
+++ b/core/java.mk
@@ -96,14 +96,35 @@
 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
 
-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
+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)
+full_classes_desugar_jar := $(intermediates.COMMON)/desugar.classes.jar
+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_stubs_jar := $(intermediates.COMMON)/stubs.jar
 
 ifeq ($(LOCAL_MODULE_CLASS)$(LOCAL_SRC_FILES)$(LOCAL_STATIC_JAVA_LIBRARIES)$(LOCAL_SOURCE_FILES_ALL_GENERATED),APPS)
@@ -122,7 +143,9 @@
 
 LOCAL_INTERMEDIATE_TARGETS += \
     $(full_classes_compiled_jar) \
+    $(full_classes_desugar_jar) \
     $(full_classes_jarjar_jar) \
+    $(full_classes_emma_jar) \
     $(full_classes_jar) \
     $(full_classes_proguard_jar) \
     $(built_dex_intermediate) \
@@ -322,7 +345,15 @@
 # command line.
 ifndef LOCAL_CHECKED_MODULE
 ifdef full_classes_jar
+ifdef LOCAL_JACK_ENABLED
 LOCAL_CHECKED_MODULE := $(jack_check_timestamp)
+else
+ifeq ($(LOCAL_IS_STATIC_JAVA_LIBRARY),true)
+LOCAL_CHECKED_MODULE := $(full_classes_compiled_jar)
+else
+LOCAL_CHECKED_MODULE := $(built_dex)
+endif
+endif
 endif
 endif
 
@@ -415,25 +446,64 @@
         $(RenderScript_file_stamp) \
         $(proto_java_sources_file_stamp) \
         $(NORMALIZE_PATH) \
+        $(JAVAC_FILTER) \
         $(LOCAL_ADDITIONAL_DEPENDENCIES)
 	$(transform-java-to-classes.jar)
 
 javac-check : $(full_classes_compiled_jar)
 javac-check-$(LOCAL_MODULE) : $(full_classes_compiled_jar)
 
+my_desugaring :=
+ifndef LOCAL_JACK_ENABLED
+ifeq ($(LOCAL_JAVA_LANGUAGE_VERSION),1.8)
+my_desugaring := true
+$(full_classes_desugar_jar): PRIVATE_DX_FLAGS := $(LOCAL_DX_FLAGS)
+$(full_classes_desugar_jar): $(full_classes_compiled_jar) $(DESUGAR)
+	$(desugar-classes-jar)
+endif
+endif
+
+ifndef my_desugaring
+full_classes_desugar_jar := $(full_classes_compiled_jar)
+endif
+
 # Run jarjar if necessary, otherwise just copy the file.
 ifneq ($(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) | $(JARJAR)
+$(full_classes_jarjar_jar): $(full_classes_desugar_jar) $(LOCAL_JARJAR_RULES) | $(JARJAR)
 	@echo JarJar: $@
 	$(hide) java -jar $(JARJAR) process $(PRIVATE_JARJAR_RULES) $< $@
 else
-$(full_classes_jarjar_jar): $(full_classes_compiled_jar) | $(ACP)
+$(full_classes_jarjar_jar): $(full_classes_desugar_jar) | $(ACP)
 	@echo Copying: $@
 	$(hide) $(ACP) -fp $< $@
 endif
 
+ifeq ($(LOCAL_EMMA_INSTRUMENT),true)
+$(full_classes_emma_jar): PRIVATE_EMMA_COVERAGE_FILE := $(intermediates.COMMON)/coverage.emma.ignore
+$(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)
+	@echo Copying: $@
+	$(copy-file-to-target)
+endif
+
 # Keep a copy of the jar just before proguard processing.
+# TODO: this should depend on full_classes_emma_jar once coverage works again
 $(full_classes_jar): $(full_classes_jarjar_jar) | $(ACP)
 	@echo Copying: $@
 	$(hide) $(ACP) -fp $< $@
@@ -481,7 +551,11 @@
 ifeq ($(filter nosystem,$(LOCAL_PROGUARD_ENABLED)),)
 common_proguard_flag_files += $(BUILD_SYSTEM)/proguard.flags
 ifeq ($(LOCAL_EMMA_INSTRUMENT),true)
+ifdef LOCAL_JACK_ENABLED
 common_proguard_flag_files += $(BUILD_SYSTEM)/proguard.jacoco.flags
+else
+common_proguard_flags += -include $(BUILD_SYSTEM)/proguard.emma.flags
+endif # LOCAL_JACK_ENABLED
 endif
 # If this is a test package, add proguard keep flags for tests.
 ifneq ($(LOCAL_INSTRUMENTATION_FOR)$(filter tests,$(LOCAL_MODULE_TAGS)),)
@@ -521,9 +595,10 @@
     -applymapping $(link_instr_intermediates_dir.COMMON)/proguard_dictionary \
     -verbose \
     $(legacy_proguard_flags)
-
+ifdef LOCAL_JACK_ENABLED
 jack_proguard_flags += -applymapping $(link_instr_intermediates_dir.COMMON)/jack_dictionary
 full_jack_deps += $(link_instr_intermediates_dir.COMMON)/jack_dictionary
+endif
 
 # Sometimes (test + main app) uses different keep rules from the main app -
 # apply the main app's dictionary anyway.
@@ -556,6 +631,21 @@
 
 endif # LOCAL_PROGUARD_ENABLED defined
 
+ifndef LOCAL_JACK_ENABLED
+$(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 $@)
@@ -588,6 +678,7 @@
 
 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)
@@ -689,3 +780,4 @@
 	@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 dbdea26..8fc4fb6 100644
--- a/core/java_common.mk
+++ b/core/java_common.mk
@@ -320,6 +320,7 @@
 ###########################################################
 # JACK
 ###########################################################
+ifdef LOCAL_JACK_ENABLED
 ifdef need_compile_java
 
 LOCAL_JACK_FLAGS += -D jack.java.source.version=$(LOCAL_JAVA_LANGUAGE_VERSION)
@@ -373,6 +374,7 @@
 $(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 b132fa6..f770a54 100644
--- a/core/java_library.mk
+++ b/core/java_library.mk
@@ -29,9 +29,11 @@
 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)
 
@@ -46,8 +48,12 @@
 ifeq (true,$(EMMA_INSTRUMENT))
 ifeq (true,$(LOCAL_EMMA_INSTRUMENT))
 ifeq (true,$(EMMA_INSTRUMENT_STATIC))
+ifdef LOCAL_JACK_ENABLED
 # Jack supports coverage with Jacoco
 LOCAL_STATIC_JAVA_LIBRARIES += jacocoagent
+else
+LOCAL_STATIC_JAVA_LIBRARIES += emma
+endif # LOCAL_JACK_ENABLED
 endif # LOCAL_EMMA_INSTRUMENT
 endif # EMMA_INSTRUMENT_STATIC
 else
@@ -61,21 +67,37 @@
 ifeq ($(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
diff --git a/core/notice_files.mk b/core/notice_files.mk
index 8a0ae6f..447e59b 100644
--- a/core/notice_files.mk
+++ b/core/notice_files.mk
@@ -36,7 +36,7 @@
   module_installed_filename := $(patsubst $(PRODUCT_OUT)/%,%,$(LOCAL_INSTALLED_MODULE))
 else
   # This module isn't installable
-  ifeq ($(LOCAL_MODULE_CLASS),STATIC_LIBRARIES)
+  ifneq ($(filter STATIC_LIBRARIES HEADER_LIBRARIES,$(LOCAL_MODULE_CLASS)),)
     # Stick the static libraries with the dynamic libraries.
     # We can't use xxx_OUT_STATIC_LIBRARIES because it points into
     # device-obj or host-obj.
diff --git a/core/package_internal.mk b/core/package_internal.mk
index 694716a..2e4878d 100644
--- a/core/package_internal.mk
+++ b/core/package_internal.mk
@@ -209,10 +209,12 @@
 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
@@ -225,22 +227,35 @@
 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,$(EMMA_INSTRUMENT_STATIC))
+ifdef LOCAL_JACK_ENABLED
 # Jack supports coverage with Jacoco
+ifneq ($(LOCAL_SRC_FILES)$(LOCAL_STATIC_JAVA_LIBRARIES)$(LOCAL_SOURCE_FILES_ALL_GENERATED),)
+# Only add jacocoagent if the package contains some java code
 LOCAL_STATIC_JAVA_LIBRARIES += jacocoagent
-else  # ! EMMA_INSTRUMENT_STATIC
+endif # Contains java code
+else
+LOCAL_STATIC_JAVA_LIBRARIES += emma
+endif # LOCAL_JACK_ENABLED
+else
 ifdef LOCAL_SDK_VERSION
 ifdef TARGET_BUILD_APPS
 # In unbundled build, merge the coverage library into the apk.
+ifdef LOCAL_JACK_ENABLED
 # Jack supports coverage with Jacoco
+ifneq ($(LOCAL_SRC_FILES)$(LOCAL_STATIC_JAVA_LIBRARIES)$(LOCAL_SOURCE_FILES_ALL_GENERATED),)
+# Only add jacocoagent if the package contains some java code
 LOCAL_STATIC_JAVA_LIBRARIES += jacocoagent
 # 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
+endif # Contains java code
+else  # ! LOCAL_JACK_ENABLED
+LOCAL_STATIC_JAVA_LIBRARIES += emma
+endif # ! LOCAL_JACK_ENABLED
+else  # ! TARGET_BUILD_APPS
+ifdef LOCAL_JACK_ENABLED
 # 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
@@ -249,11 +264,16 @@
 # 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
+else  # ! LOCAL_JACK_ENABLED
+# 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 # ! LOCAL_JACK_ENABLED
+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 :=
 
@@ -374,13 +394,30 @@
 
 endif  # LOCAL_USE_AAPT2
 
-# Make sure to generate R.java before compiling.
 # Other modules should depend on the BUILT module if
 # they want to use this module's R.java file.
-$(LOCAL_BUILT_MODULE) \
-$(full_classes_compiled_jar) \
-$(built_dex_intermediate) $(noshrob_classes_jack) $(full_classes_jack) $(jack_check_timestamp) \
-  :  $(R_file_stamp)
+$(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): $(R_file_stamp)
+$(jack_check_timestamp): $(R_file_stamp)
+endif
+endif # LOCAL_JACK_ENABLED
+
+ifneq ($(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
 
 endif  # need_compile_res
 
@@ -426,9 +463,12 @@
 
 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
@@ -487,6 +527,7 @@
     $(my_res_package) $(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) : $(jni_shared_libraries)
 ifdef LOCAL_USE_AAPT2
 $(LOCAL_BUILT_MODULE): PRIVATE_RES_PACKAGE := $(my_res_package)
@@ -498,7 +539,13 @@
 ifdef LOCAL_USE_AAPT2
 	$(call copy-file-to-new-target)
 else  # ! LOCAL_USE_AAPT2
+ifdef LOCAL_JACK_ENABLED
 	$(create-empty-package)
+else
+	$(if $(PRIVATE_SOURCE_ARCHIVE),\
+	  $(call initialize-package-file,$(PRIVATE_SOURCE_ARCHIVE),$@),\
+	  $(create-empty-package))
+endif
 	$(add-assets-to-package)
 endif  # LOCAL_USE_AAPT2
 ifneq ($(jni_shared_libraries),)
@@ -510,7 +557,9 @@
 else  # full_classes_jar
 	$(add-dex-to-package)
 endif  # full_classes_jar
+ifdef LOCAL_JACK_ENABLED
 	$(add-carried-jack-resources)
+endif
 ifdef LOCAL_DEX_PREOPT
 ifneq ($(BUILD_PLATFORM_ZIP),)
 	@# Keep a copy of apk with classes.dex unstripped
diff --git a/core/prebuilt_internal.mk b/core/prebuilt_internal.mk
index 10512ff..997f971 100644
--- a/core/prebuilt_internal.mk
+++ b/core/prebuilt_internal.mk
@@ -174,6 +174,19 @@
 endif  # my_strip_module not true
 
 ifeq ($(NATIVE_COVERAGE),true)
+ifneq (,$(strip $(LOCAL_PREBUILT_COVERAGE_ARCHIVE)))
+  $(eval $(call copy-one-file,$(LOCAL_PREBUILT_COVERAGE_ARCHIVE),$(intermediates)/$(LOCAL_MODULE).gcnodir))
+  ifneq ($(LOCAL_UNINSTALLABLE_MODULE),true)
+    ifdef LOCAL_IS_HOST_MODULE
+      my_coverage_path := $($(my_prefix)OUT_COVERAGE)/$(patsubst $($(my_prefix)OUT)/%,%,$(my_module_path))
+    else
+      my_coverage_path := $(TARGET_OUT_COVERAGE)/$(patsubst $(PRODUCT_OUT)/%,%,$(my_module_path))
+    endif
+    my_coverage_path := $(my_coverage_path)/$(basename $(my_installed_module_stem)).gcnodir
+    $(eval $(call copy-one-file,$(LOCAL_PREBUILT_COVERAGE_ARCHIVE),$(my_coverage_path)))
+    $(LOCAL_BUILT_MODULE): $(my_coverage_path)
+  endif
+else
 # Coverage information is needed when static lib is a dependency of another
 # coverage-enabled module.
 ifeq (STATIC_LIBRARIES, $(LOCAL_MODULE_CLASS))
@@ -186,6 +199,7 @@
 	$(transform-o-to-static-lib)
 endif
 endif
+endif
 
 ifeq ($(LOCAL_MODULE_CLASS),APPS)
 PACKAGES.$(LOCAL_MODULE).OVERRIDES := $(strip $(LOCAL_OVERRIDES_PACKAGES))
diff --git a/core/shared_library_internal.mk b/core/shared_library_internal.mk
index 6b914c9..1ea4cb8 100644
--- a/core/shared_library_internal.mk
+++ b/core/shared_library_internal.mk
@@ -96,6 +96,7 @@
 
 $(intermediates)/$(GCNO_ARCHIVE) : PRIVATE_ALL_OBJECTS := $(strip $(LOCAL_GCNO_FILES))
 $(intermediates)/$(GCNO_ARCHIVE) : PRIVATE_ALL_WHOLE_STATIC_LIBRARIES := $(strip $(built_whole_gcno_libraries)) $(strip $(built_static_gcno_libraries))
+$(intermediates)/$(GCNO_ARCHIVE) : PRIVATE_INTERMEDIATES_DIR := $(intermediates)
 $(intermediates)/$(GCNO_ARCHIVE) : $(LOCAL_GCNO_FILES) $(built_whole_gcno_libraries) $(built_static_gcno_libraries)
 	$(transform-o-to-static-lib)
 
diff --git a/core/soong_config.mk b/core/soong_config.mk
index ad2f204..c038a32 100644
--- a/core/soong_config.mk
+++ b/core/soong_config.mk
@@ -43,6 +43,9 @@
 	echo '    "ClangTidy": $(if $(filter 1 true,$(WITH_TIDY)),true,false),'; \
 	echo '    "TidyChecks": "$(WITH_TIDY_CHECKS)",'; \
 	echo ''; \
+	echo '    "NativeCoverage": $(if $(filter true,$(NATIVE_COVERAGE)),true,false),'; \
+	echo '    "CoveragePaths": [$(if $(COVERAGE_PATHS),"$(subst $(space),"$(comma)",$(subst $(comma),$(space),$(COVERAGE_PATHS)))")],'; \
+	echo ''; \
 	echo '    "DeviceName": "$(TARGET_DEVICE)",'; \
 	echo '    "DeviceArch": "$(TARGET_ARCH)",'; \
 	echo '    "DeviceArchVariant": "$(TARGET_ARCH_VARIANT)",'; \
diff --git a/core/static_java_library.mk b/core/static_java_library.mk
index 258c5f8..eeef4ce 100644
--- a/core/static_java_library.mk
+++ b/core/static_java_library.mk
@@ -75,10 +75,12 @@
 
 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
 
 R_file_stamp := $(intermediates.COMMON)/src/R.stamp
 LOCAL_INTERMEDIATE_TARGETS += $(R_file_stamp)
@@ -164,10 +166,13 @@
 	$(hide) find $(PRIVATE_SOURCE_INTERMEDIATES_DIR) -name R.java | xargs cat > $@
 endif  # LOCAL_USE_AAPT2
 
-$(LOCAL_BUILT_MODULE) \
-$(full_classes_compiled_jar) \
-$(noshrob_classes_jack) $(full_classes_jack) $(jack_check_timestamp) \
-  : $(R_file_stamp)
+$(LOCAL_BUILT_MODULE): $(R_file_stamp)
+ifdef LOCAL_JACK_ENABLED
+$(noshrob_classes_jack): $(R_file_stamp)
+$(full_classes_jack): $(R_file_stamp)
+$(jack_check_timestamp): $(R_file_stamp)
+endif # LOCAL_JACK_ENABLED
+$(full_classes_compiled_jar): $(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_internal.mk b/core/static_library_internal.mk
index 6133ea2..6b4d22f 100644
--- a/core/static_library_internal.mk
+++ b/core/static_library_internal.mk
@@ -39,6 +39,7 @@
 $(intermediates)/$(GCNO_ARCHIVE) : PRIVATE_ALL_WHOLE_STATIC_LIBRARIES := $(strip $(built_whole_gcno_libraries))
 $(intermediates)/$(GCNO_ARCHIVE) : PRIVATE_PREFIX := $(my_prefix)
 $(intermediates)/$(GCNO_ARCHIVE) : PRIVATE_2ND_ARCH_VAR_PREFIX := $(LOCAL_2ND_ARCH_VAR_PREFIX)
+$(intermediates)/$(GCNO_ARCHIVE) : PRIVATE_INTERMEDIATES_DIR := $(intermediates)
 $(intermediates)/$(GCNO_ARCHIVE) : $(LOCAL_GCNO_FILES) $(built_whole_gcno_libraries)
 	$(transform-o-to-static-lib)
 endif
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 2449ea9..86d77bb 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -38,6 +38,44 @@
   include $(INTERNAL_BUILD_ID_MAKEFILE)
 endif
 
+# Returns all words in $1 up to and including $2
+define find_and_earlier
+  $(strip $(if $(1),
+    $(firstword $(1))
+    $(if $(filter $(firstword $(1)),$(2)),,
+      $(call find_and_earlier,$(wordlist 2,$(words $(1)),$(1)),$(2)))))
+endef
+
+#$(warning $(call find_and_earlier,A B C,A))
+#$(warning $(call find_and_earlier,A B C,B))
+#$(warning $(call find_and_earlier,A B C,C))
+#$(warning $(call find_and_earlier,A B C,D))
+
+define version-list
+$(1) $(1)DR1 $(1)DR2 $(1)MR1 $(1)MR2
+endef
+
+ALL_VERSIONS := O P
+ALL_VERSIONS := $(foreach v,$(ALL_VERSIONS),$(call version-list,$(v)))
+
+ifeq (,$(TARGET_PLATFORM_VERSION))
+  # Default targeted platform version
+  # TODO: PLATFORM_VERSION, PLATFORM_SDK_VERSION, etc. should be conditional
+  # on this
+  TARGET_PLATFORM_VERSION := O
+endif
+
+ifeq (,$(filter $(ALL_VERSIONS), $(TARGET_PLATFORM_VERSION)))
+$(warning Invalid TARGET_PLATFORM_VERSION '$(TARGET_PLATFORM_VERSION)', must be one of)
+$(warning $(ALL_VERSIONS))
+$(error Stopping...)
+endif
+
+ENABLED_VERSIONS := $(call find_and_earlier,$(ALL_VERSIONS),$(TARGET_PLATFORM_VERSION))
+
+$(foreach v,$(ENABLED_VERSIONS), \
+  $(eval IS_AT_LEAST_$(v) := true))
+
 ifeq "" "$(PLATFORM_VERSION)"
   # This is the canonical definition of the platform version,
   # which is the version that we reveal to the end user.
diff --git a/target/product/embedded.mk b/target/product/embedded.mk
index c94abc3..71e9c33 100644
--- a/target/product/embedded.mk
+++ b/target/product/embedded.mk
@@ -20,7 +20,7 @@
 PRODUCT_PACKAGES += \
     adb \
     adbd \
-    android.hidl.memory@1.0-service \
+    android.hidl.allocator@1.0-service \
     android.hidl.memory@1.0-impl \
     atrace \
     bootanimation \
diff --git a/target/product/full_base_telephony.mk b/target/product/full_base_telephony.mk
index 9a2c63a..3d195a1 100644
--- a/target/product/full_base_telephony.mk
+++ b/target/product/full_base_telephony.mk
@@ -25,7 +25,7 @@
 
 PRODUCT_COPY_FILES := \
     device/generic/goldfish/data/etc/apns-conf.xml:system/etc/apns-conf.xml \
-    frameworks/native/data/etc/handheld_core_hardware.xml:system/etc/permissions/handheld_core_hardware.xml
+    device/generic/goldfish/data/etc/handheld_core_hardware.xml:system/etc/permissions/handheld_core_hardware.xml \
 
 $(call inherit-product, $(SRC_TARGET_DIR)/product/aosp_base.mk)
 $(call inherit-product, $(SRC_TARGET_DIR)/product/telephony.mk)
diff --git a/tools/releasetools/common.py b/tools/releasetools/common.py
index 7b3e9ba..027e9f5 100644
--- a/tools/releasetools/common.py
+++ b/tools/releasetools/common.py
@@ -518,7 +518,13 @@
   elif info_dict.get("vboot", None):
     path = "/" + os.path.basename(sourcedir).lower()
     img_keyblock = tempfile.NamedTemporaryFile()
-    cmd = [info_dict["vboot_signer_cmd"], info_dict["futility"],
+    # We have switched from the prebuilt futility binary to using the tool
+    # (futility-host) built from the source. Override the setting in the old
+    # TF.zip.
+    futility = info_dict["futility"]
+    if futility.startswith("prebuilts/"):
+      futility = "futility-host"
+    cmd = [info_dict["vboot_signer_cmd"], futility,
            img_unsigned.name, info_dict["vboot_key"] + ".vbpubk",
            info_dict["vboot_key"] + ".vbprivk",
            info_dict["vboot_subkey"] + ".vbprivk",
diff --git a/tools/zipalign/ZipFile.cpp b/tools/zipalign/ZipFile.cpp
index 98d02e0..1b39902 100644
--- a/tools/zipalign/ZipFile.cpp
+++ b/tools/zipalign/ZipFile.cpp
@@ -359,8 +359,7 @@
  * safely written.  Not really a concern for us.
  */
 status_t ZipFile::addCommon(const char* fileName, const void* data, size_t size,
-    const char* storageName, int sourceType, int compressionMethod,
-    ZipEntry** ppEntry)
+    const char* storageName, int compressionMethod, ZipEntry** ppEntry)
 {
     ZipEntry* pEntry = NULL;
     status_t result = NO_ERROR;
@@ -414,81 +413,51 @@
     /*
      * Copy the data in, possibly compressing it as we go.
      */
-    if (sourceType == ZipEntry::kCompressStored) {
-        if (compressionMethod == ZipEntry::kCompressDeflated) {
-            bool failed = false;
-            result = compressFpToFp(mZipFp, inputFp, data, size, &crc);
-            if (result != NO_ERROR) {
-                ALOGD("compression failed, storing\n");
-                failed = true;
-            } else {
-                /*
-                 * Make sure it has compressed "enough".  This probably ought
-                 * to be set through an API call, but I don't expect our
-                 * criteria to change over time.
-                 */
-                long src = inputFp ? ftell(inputFp) : size;
-                long dst = ftell(mZipFp) - startPosn;
-                if (dst + (dst / 10) > src) {
-                    ALOGD("insufficient compression (src=%ld dst=%ld), storing\n",
-                        src, dst);
-                    failed = true;
-                }
-            }
-
-            if (failed) {
-                compressionMethod = ZipEntry::kCompressStored;
-                if (inputFp) rewind(inputFp);
-                fseek(mZipFp, startPosn, SEEK_SET);
-                /* fall through to kCompressStored case */
-            }
-        }
-        /* handle "no compression" request, or failed compression from above */
-        if (compressionMethod == ZipEntry::kCompressStored) {
-            if (inputFp) {
-                result = copyFpToFp(mZipFp, inputFp, &crc);
-            } else {
-                result = copyDataToFp(mZipFp, data, size, &crc);
-            }
-            if (result != NO_ERROR) {
-                // don't need to truncate; happens in CDE rewrite
-                ALOGD("failed copying data in\n");
-                goto bail;
-            }
-        }
-
-        // currently seeked to end of file
-        uncompressedLen = inputFp ? ftell(inputFp) : size;
-    } else if (sourceType == ZipEntry::kCompressDeflated) {
-        /* we should support uncompressed-from-compressed, but it's not
-         * important right now */
-        assert(compressionMethod == ZipEntry::kCompressDeflated);
-
-        bool scanResult;
-        int method;
-        long compressedLen;
-        unsigned long longcrc;
-
-        scanResult = ZipUtils::examineGzip(inputFp, &method, &uncompressedLen,
-                        &compressedLen, &longcrc);
-        if (!scanResult || method != ZipEntry::kCompressDeflated) {
-            ALOGD("this isn't a deflated gzip file?");
-            result = UNKNOWN_ERROR;
-            goto bail;
-        }
-        crc = longcrc;
-
-        result = copyPartialFpToFp(mZipFp, inputFp, compressedLen, NULL);
+    if (compressionMethod == ZipEntry::kCompressDeflated) {
+        bool failed = false;
+        result = compressFpToFp(mZipFp, inputFp, data, size, &crc);
         if (result != NO_ERROR) {
-            ALOGD("failed copying gzip data in\n");
+            ALOGD("compression failed, storing\n");
+            failed = true;
+        } else {
+            /*
+             * Make sure it has compressed "enough".  This probably ought
+             * to be set through an API call, but I don't expect our
+             * criteria to change over time.
+             */
+            long src = inputFp ? ftell(inputFp) : size;
+            long dst = ftell(mZipFp) - startPosn;
+            if (dst + (dst / 10) > src) {
+                ALOGD("insufficient compression (src=%ld dst=%ld), storing\n",
+                    src, dst);
+                failed = true;
+            }
+        }
+
+        if (failed) {
+            compressionMethod = ZipEntry::kCompressStored;
+            if (inputFp) rewind(inputFp);
+            fseek(mZipFp, startPosn, SEEK_SET);
+            /* fall through to kCompressStored case */
+        }
+    }
+    /* handle "no compression" request, or failed compression from above */
+    if (compressionMethod == ZipEntry::kCompressStored) {
+        if (inputFp) {
+            result = copyFpToFp(mZipFp, inputFp, &crc);
+        } else {
+            result = copyDataToFp(mZipFp, data, size, &crc);
+        }
+        if (result != NO_ERROR) {
+            // don't need to truncate; happens in CDE rewrite
+            ALOGD("failed copying data in\n");
             goto bail;
         }
-    } else {
-        assert(false);
-        result = UNKNOWN_ERROR;
-        goto bail;
     }
 
+    // currently seeked to end of file
+    uncompressedLen = inputFp ? ftell(inputFp) : size;
+
     /*
      * We could write the "Data Descriptor", but there doesn't seem to
      * be any point since we're going to go back and write the LFH.
diff --git a/tools/zipalign/ZipFile.h b/tools/zipalign/ZipFile.h
index b0bafe9..d5ace7c 100644
--- a/tools/zipalign/ZipFile.h
+++ b/tools/zipalign/ZipFile.h
@@ -86,24 +86,10 @@
         int compressionMethod, ZipEntry** ppEntry)
     {
         return addCommon(fileName, NULL, 0, storageName,
-                         ZipEntry::kCompressStored,
                          compressionMethod, ppEntry);
     }
 
     /*
-     * Add a file that is already compressed with gzip.
-     *
-     * If "ppEntry" is non-NULL, a pointer to the new entry will be returned.
-     */
-    status_t addGzip(const char* fileName, const char* storageName,
-        ZipEntry** ppEntry)
-    {
-        return addCommon(fileName, NULL, 0, storageName,
-                         ZipEntry::kCompressDeflated,
-                         ZipEntry::kCompressDeflated, ppEntry);
-    }
-
-    /*
      * Add a file from an in-memory data buffer.
      *
      * If "ppEntry" is non-NULL, a pointer to the new entry will be returned.
@@ -112,7 +98,6 @@
         int compressionMethod, ZipEntry** ppEntry)
     {
         return addCommon(NULL, data, size, storageName,
-                         ZipEntry::kCompressStored,
                          compressionMethod, ppEntry);
     }
 
@@ -231,8 +216,7 @@
 
     /* common handler for all "add" functions */
     status_t addCommon(const char* fileName, const void* data, size_t size,
-        const char* storageName, int sourceType, int compressionMethod,
-        ZipEntry** ppEntry);
+        const char* storageName, int compressionMethod, ZipEntry** ppEntry);
 
     /* copy all of "srcFp" into "dstFp" */
     status_t copyFpToFp(FILE* dstFp, FILE* srcFp, uint32_t* pCRC32);