Merge "Use KATI_DEPFILE for .P associated with object files"
diff --git a/core/Makefile b/core/Makefile
index 2d7f76d..4e9f1a9 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -228,6 +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)" \
@@ -674,7 +675,7 @@
 $(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
@@ -1142,7 +1143,7 @@
 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))
diff --git a/core/base_rules.mk b/core/base_rules.mk
index 1d3f57e..5afec2f 100644
--- a/core/base_rules.mk
+++ b/core/base_rules.mk
@@ -299,26 +299,12 @@
 ## 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_installed :=
diff --git a/core/binary.mk b/core/binary.mk
index ac55f99..9336ac6 100644
--- a/core/binary.mk
+++ b/core/binary.mk
@@ -528,7 +528,7 @@
 
 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)
 
@@ -1397,19 +1397,26 @@
 ###########################################################
 export_includes := $(intermediates)/export_includes
 $(export_includes): PRIVATE_EXPORT_C_INCLUDE_DIRS := $(my_export_c_include_dirs)
+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),$(my_host_cross))/export_includes))
+$(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) : $(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 $$d" >> $@.tmp; \
 	        done
-else
-	$(hide) touch $@.tmp
+endif
+ifdef export_include_deps
+	$(hide) for f in $(PRIVATE_REEXPORTED_INCLUDES); do \
+		cat $$f >> $@.tmp; \
+		done
 endif
 	$(hide) if cmp -s $@.tmp $@ ; then \
 	  rm $@.tmp ; \
diff --git a/core/clang/versions.mk b/core/clang/versions.mk
index 96872c2..f80d6b9 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-2629532
+LLVM_PREBUILTS_VERSION ?= clang-2658975
 LLVM_PREBUILTS_BASE ?= prebuilts/clang/host
diff --git a/core/clear_vars.mk b/core/clear_vars.mk
index 0267321..7304bf8 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:=
@@ -208,6 +207,8 @@
 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_$(TARGET_2ND_ARCH):=
@@ -227,6 +228,8 @@
 LOCAL_REQUIRED_MODULES_$(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..076815b 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++
 
@@ -47,7 +47,6 @@
 $(combo_2nd_arch_prefix)HOST_AR := $(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..a8541ee 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++
 
@@ -47,7 +47,6 @@
 HOST_AR := $(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/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..85c850a 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
@@ -446,6 +442,8 @@
 #
 # 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 +457,14 @@
 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
@@ -483,6 +482,8 @@
 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 :=
 
 
 # ---------------------------------------------------------------
@@ -537,7 +538,6 @@
 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 ($(ANDROID_COMPILE_WITH_JACK),true)
@@ -702,7 +702,7 @@
 HOST_GLOBAL_LD_DIRS += -L$(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 +747,7 @@
 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 +757,7 @@
 $(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
diff --git a/core/cxx_stl_setup.mk b/core/cxx_stl_setup.mk
index 37be1f7..0777645 100644
--- a/core/cxx_stl_setup.mk
+++ b/core/cxx_stl_setup.mk
@@ -110,8 +110,11 @@
     ifndef LOCAL_IS_HOST_MODULE
         my_c_includes += bionic/libstdc++/include
         my_system_shared_libraries += libstdc++
+    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 7802486..15fadd5 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -654,25 +654,36 @@
 # $(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
 
 ###########################################################
@@ -693,16 +704,10 @@
 $(foreach lib,$(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
 
 ###########################################################
@@ -1300,13 +1305,12 @@
 	    $(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
@@ -1330,7 +1334,7 @@
 
 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
@@ -2005,6 +2009,38 @@
 $(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 \
+	$(call call-jack,$(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_BOOTCLASSPATH_JAVA_LIBRARIES) $(PRIVATE_ALL_JACK_LIBRARIES)))) \
+	    -D jack.import.resource.policy=keep-first \
+	    -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
@@ -2368,7 +2404,7 @@
 # $(1): source file
 # $(2): destination file
 define copy-one-file
-$(2): $(1) | $(ACP)
+$(2): $(1)
 	@echo "Copy: $$@"
 	$$(copy-file-to-target)
 endef
@@ -2389,7 +2425,7 @@
 # $(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)
@@ -2404,24 +2440,29 @@
 # 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
 
@@ -2429,6 +2470,7 @@
 # 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
 
@@ -2436,14 +2478,16 @@
 # 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.
@@ -2572,7 +2616,7 @@
 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
 
@@ -2587,7 +2631,7 @@
 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..8c473f7 100644
--- a/core/dex_preopt.mk
+++ b/core/dex_preopt.mk
@@ -35,7 +35,7 @@
 _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..f90eebc 100644
--- a/core/dex_preopt_libart.mk
+++ b/core/dex_preopt_libart.mk
@@ -85,7 +85,7 @@
 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) \
diff --git a/core/dex_preopt_odex_install.mk b/core/dex_preopt_odex_install.mk
index 73c8146..c7d9750 100644
--- a/core/dex_preopt_odex_install.mk
+++ b/core/dex_preopt_odex_install.mk
@@ -106,8 +106,7 @@
 # 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: $@"
 	$(copy-file-to-target)
 endif
diff --git a/core/dumpvar.mk b/core/dumpvar.mk
index cfb031f..1bd4777 100644
--- a/core/dumpvar.mk
+++ b/core/dumpvar.mk
@@ -1,3 +1,35 @@
+
+# List of variables we want to print in the build banner.
+print_build_config_vars := \
+  PLATFORM_VERSION_CODENAME \
+  PLATFORM_VERSION \
+  TARGET_PRODUCT \
+  TARGET_BUILD_VARIANT \
+  TARGET_BUILD_TYPE \
+  TARGET_BUILD_APPS \
+  TARGET_ARCH \
+  TARGET_ARCH_VARIANT \
+  TARGET_CPU_VARIANT \
+  TARGET_2ND_ARCH \
+  TARGET_2ND_ARCH_VARIANT \
+  TARGET_2ND_CPU_VARIANT \
+  HOST_ARCH \
+  HOST_2ND_ARCH \
+  HOST_OS \
+  HOST_OS_EXTRA \
+  HOST_CROSS_OS \
+  HOST_CROSS_ARCH \
+  HOST_CROSS_2ND_ARCH \
+  HOST_BUILD_TYPE \
+  BUILD_ID \
+  OUT_DIR
+
+ifeq ($(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..7ed5c35 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)
 
@@ -110,7 +112,9 @@
 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
@@ -144,18 +148,9 @@
 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..1840b7e 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)
 
@@ -369,6 +371,7 @@
 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)
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/host_dalvik_java_library.mk b/core/host_dalvik_java_library.mk
index 6678723..5b8634e 100644
--- a/core/host_dalvik_java_library.mk
+++ b/core/host_dalvik_java_library.mk
@@ -36,6 +36,7 @@
 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 += \
@@ -43,12 +44,17 @@
     $(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
 
 #######################################
 include $(BUILD_SYSTEM)/base_rules.mk
@@ -120,16 +126,21 @@
 $(LOCAL_INTERMEDIATE_TARGETS): \
 	PRIVATE_JACK_INCREMENTAL_DIR :=
 endif
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_JACK_FLAGS := $(GLOBAL_JAVAC_DEBUG_FLAGS) $(LOCAL_JACK_FLAGS)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_JACK_VERSION := $(LOCAL_JACK_VERSION)
 
-$(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_deps) \
+jack_all_deps := $(java_sources) $(java_resource_sources) $(full_jack_deps) \
         $(jar_manifest_file) $(proto_java_sources_file_stamp) \
-        $(LOCAL_ADDITIONAL_DEPENDENCIES) $(JACK) | setup-jack-server
+        $(LOCAL_ADDITIONAL_DEPENDENCIES) $(JACK)
+$(built_dex): PRIVATE_CLASSES_JACK := $(full_classes_jack)
+$(built_dex): $(jack_all_deps) | setup-jack-server
 	@echo Building with Jack: $@
 	$(jack-java-to-dex)
 
+$(jack_check_timestamp): $(jack_all_deps) | setup-jack-server
+	@echo Checking build with Jack: $@
+	$(jack-check-java)
+
 # $(full_classes_jack) is just by-product of $(built_dex).
 # The dummy command was added because, without it, make misses the fact the $(built_dex) also
 # change $(full_classes_jack).
diff --git a/core/host_dalvik_static_java_library.mk b/core/host_dalvik_static_java_library.mk
index e1ffbfe..bdb13b7 100644
--- a/core/host_dalvik_static_java_library.mk
+++ b/core/host_dalvik_static_java_library.mk
@@ -35,8 +35,9 @@
 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 := $(LOCAL_JACK_VERSION)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_JACK_FLAGS := $(GLOBAL_JAVAC_DEBUG_FLAGS) $(LOCAL_JACK_FLAGS)
+$(LOCAL_INTERMEDIATE_TARGETS): 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
diff --git a/core/host_java_library.mk b/core/host_java_library.mk
index fb69f63..9a13439 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))
@@ -90,3 +68,41 @@
         $(proto_java_sources_file_stamp) \
         $(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 $< $@
+endif
+
+ifeq (true,$(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)
+	$(transform-classes.jar-to-emma)
+
+$(built_javalib_jar) : $(full_classes_emma_jar)
+	@echo Copying: $@
+	$(hide) $(ACP) -fp $< $@
+
+else # LOCAL_EMMA_INSTRUMENT
+$(built_javalib_jar): $(full_classes_jarjar_jar) | $(ACP)
+	@echo Copying: $@
+	$(hide) $(ACP) -fp $< $@
+endif # LOCAL_EMMA_INSTRUMENT
+
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 4485af6..0ae234a 100644
--- a/core/java.mk
+++ b/core/java.mk
@@ -119,6 +119,7 @@
 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) \
@@ -129,6 +130,7 @@
     $(built_dex_intermediate) \
     $(full_classes_jack) \
     $(noshrob_classes_jack) \
+    $(jack_check_timestamp) \
     $(built_dex) \
     $(full_classes_stubs_jar)
 
@@ -323,9 +325,13 @@
 # command line.
 ifndef LOCAL_CHECKED_MODULE
 ifdef full_classes_jar
+ifdef LOCAL_JACK_ENABLED
+LOCAL_CHECKED_MODULE := $(jack_check_timestamp)
+else
 LOCAL_CHECKED_MODULE := $(full_classes_compiled_jar)
 endif
 endif
+endif
 
 #######################################
 include $(BUILD_SYSTEM)/base_rules.mk
@@ -445,7 +451,7 @@
 	$(transform-classes.jar-to-emma)
 
 else
-$(full_classes_emma_jar): $(full_classes_jarjar_jar) | $(ACP)
+$(full_classes_emma_jar): $(full_classes_jarjar_jar)
 	@echo Copying: $@
 	$(copy-file-to-target)
 endif
@@ -561,11 +567,11 @@
 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) $(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 $< $@
 
@@ -630,9 +636,13 @@
 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
@@ -665,6 +675,10 @@
         $(proto_java_sources_file_stamp) $(LOCAL_ADDITIONAL_DEPENDENCIES) $(LOCAL_JARJAR_RULES) \
         $(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
 	@echo Building with Jack: $@
@@ -702,11 +716,6 @@
 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: $@
diff --git a/core/java_common.mk b/core/java_common.mk
index d9ce9df..44dfc51 100644
--- a/core/java_common.mk
+++ b/core/java_common.mk
@@ -3,11 +3,28 @@
 ###########################################################
 ## Java version
 ###########################################################
+# Use the LOCAL_JAVA_LANGUAGE_VERSION if it is set, otherwise
+# use one based on the LOCAL_SDK_VERSION. If it is < 24
+# pass "1.7" to the tools, if it is unset, >= 24 or "current"
+# pass "1.8".
+#
+# The LOCAL_SDK_VERSION behavior is to ensure that, by default,
+# code that is expected to run on older releases of Android
+# does not use any 1.8 language features that are not supported
+# on earlier runtimes (like default / static interface methods).
+# Modules can override this logic by specifying
+# LOCAL_JAVA_LANGUAGE_VERSION explicitly.
 ifeq (,$(LOCAL_JAVA_LANGUAGE_VERSION))
-  ifeq (,$(LEGACY_USE_JAVA7))
-    LOCAL_JAVA_LANGUAGE_VERSION := 1.8
-  else
+  private_sdk_versions_without_any_java_18_support := 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
+  ifneq (,$(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)
@@ -46,6 +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
 
 #########################################
@@ -173,14 +192,13 @@
 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 $(HOST_OUT_JAVA_LIBRARIES)/,\
@@ -264,6 +282,9 @@
 ifdef aidl_sources
 ALL_MODULES.$(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 := $(full_java_libs)
diff --git a/core/java_library.mk b/core/java_library.mk
index 81a4a6a..8edba55 100644
--- a/core/java_library.mk
+++ b/core/java_library.mk
@@ -103,7 +103,7 @@
 ifneq ($(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 +114,7 @@
 	@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 +123,7 @@
 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/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 9501a65..667cfa1 100644
--- a/core/ninja.mk
+++ b/core/ninja.mk
@@ -1,14 +1,7 @@
 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 +20,7 @@
 	ECLIPSE-% \
 	PRODUCT-% \
 	boottarball-nodeps \
+	brillo_tests \
 	btnod \
 	build-art% \
 	build_kernel-nodeps \
@@ -68,7 +62,7 @@
 -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), $(ANDROID_GOALS))
@@ -154,34 +148,9 @@
 ifeq ($(KATI_EMULATE_FIND),false)
   KATI_FIND_EMULATOR :=
 endif
-$(KATI_BUILD_NINJA): $(KATI) $(MAKEPARALLEL) $(SOONG_ANDROID_MK) FORCE
+$(KATI_BUILD_NINJA): $(CKATI) $(MAKEPARALLEL) $(SOONG_ANDROID_MK) FORCE
 	@echo Running kati to generate build$(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)
-# We need everything in libpthread.a otherwise C++11's threading library will be disabled.
-KATI_LD += -static -Wl,--whole-archive -lpthread -Wl,--no-whole-archive -ldl
-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_internal.mk b/core/package_internal.mk
index 097d801..1dff269 100644
--- a/core/package_internal.mk
+++ b/core/package_internal.mk
@@ -304,6 +304,7 @@
 endif
 ifneq ($(full_classes_jack),)
 $(full_classes_jack): $(R_file_stamp)
+$(jack_check_timestamp): $(R_file_stamp)
 endif
 endif # LOCAL_JACK_ENABLED
 
@@ -497,7 +498,7 @@
 	$(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/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_internal.mk b/core/prebuilt_internal.mk
index 1422809..f9ec7d5 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
 
@@ -75,7 +82,7 @@
 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
@@ -85,10 +92,13 @@
   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)
 
@@ -130,8 +140,8 @@
 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))
@@ -216,7 +226,7 @@
 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)
 	$(uncompress-shared-libs)
 ifneq ($(LOCAL_CERTIFICATE),PRESIGNED)
@@ -255,12 +265,12 @@
 
 $(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)
 
@@ -275,18 +285,17 @@
 endif # LOCAL_PACKAGE_SPLITS
 
 else # LOCAL_MODULE_CLASS != APPS
-ifneq ($(LOCAL_PREBUILT_STRIP_COMMENTS),)
+
 $(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
 
 ifeq ($(LOCAL_MODULE_CLASS),JAVA_LIBRARIES)
@@ -312,10 +321,10 @@
 	$(hide) touch $@
 
 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))
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/soong.mk b/core/soong.mk
index 578aac9..e070d6b 100644
--- a/core/soong.mk
+++ b/core/soong.mk
@@ -1,18 +1,24 @@
 SOONG_OUT_DIR := $(OUT_DIR)/soong
+
+# This needs to exist before the realpath checks below
+$(shell mkdir -p $(SOONG_OUT_DIR))
+
+ifeq (,$(filter /%,$(SOONG_OUT_DIR)))
+SOONG_TOP_RELPATH := $(shell python -c "import os; print os.path.relpath('$(TOP)', '$(SOONG_OUT_DIR)')")
+# Protect against out being a symlink and relative paths not working
+ifneq ($(realpath $(SOONG_OUT_DIR)/$(SOONG_TOP_RELPATH)),$(realpath $(TOP)))
+SOONG_OUT_DIR := $(abspath $(SOONG_OUT_DIR))
+SOONG_TOP_RELPATH := $(abspath $(TOP))
+endif
+else
+SOONG_TOP_RELPATH := $(abspath $(TOP))
+endif
+
 SOONG := $(SOONG_OUT_DIR)/soong
 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 := $(SOONG_HOST_EXECUTABLES)/makeparallel
-
-ifeq (,$(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))
-endif
 
 # Bootstrap soong.  Run only the first time for clean builds
 $(SOONG):
@@ -26,11 +32,10 @@
 	$(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 ''; \
 	echo '    "DeviceName": "$(TARGET_DEVICE)",'; \
 	echo '    "DeviceArch": "$(TARGET_ARCH)",'; \
@@ -64,7 +69,4 @@
 
 # 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)
+	$(hide) $(SOONG) $(SOONG_BUILD_NINJA) $(NINJA_ARGS)
diff --git a/core/static_java_library.mk b/core/static_java_library.mk
index d956124..8913ee4 100644
--- a/core/static_java_library.mk
+++ b/core/static_java_library.mk
@@ -130,6 +130,7 @@
 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)
 
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..030ca40 100644
--- a/core/target_test_internal.mk
+++ b/core/target_test_internal.mk
@@ -4,8 +4,6 @@
 
 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
 else
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 8b9bdba..af5f516 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -104,7 +104,7 @@
   # 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 9489d21..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
@@ -878,18 +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()
@@ -910,7 +981,7 @@
         echo "$PID"
     else
         echo "usage: pid [--exact] <process name>"
-		return 255
+        return 255
     fi
 }
 
@@ -923,25 +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
@@ -952,13 +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
@@ -969,28 +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/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/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/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/releasetools/blockimgdiff.py b/tools/releasetools/blockimgdiff.py
index 25d2743..625dca2 100644
--- a/tools/releasetools/blockimgdiff.py
+++ b/tools/releasetools/blockimgdiff.py
@@ -771,7 +771,10 @@
           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/ota_from_target_files.py b/tools/releasetools/ota_from_target_files.py
index f51920a..a5c0165 100755
--- a/tools/releasetools/ota_from_target_files.py
+++ b/tools/releasetools/ota_from_target_files.py
@@ -74,7 +74,8 @@
       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 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.
@@ -1056,7 +1057,12 @@
 """ % 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)
 
@@ -1424,7 +1430,8 @@
   if oem_props is not None and len(oem_props) > 0:
     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())
 
@@ -1803,7 +1810,13 @@
     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)
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++) {