diff --git a/core/Makefile b/core/Makefile
index 0823995..c2cd3ff 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -959,17 +959,9 @@
 
 $(INTERNAL_OTA_PACKAGE_TARGET): KEY_CERT_PAIR := $(DEFAULT_KEY_CERT_PAIR)
 
-ifeq ($(TARGET_OTA_SCRIPT_MODE),)
-# default to "auto"
-$(INTERNAL_OTA_PACKAGE_TARGET): scriptmode := auto
-else
-$(INTERNAL_OTA_PACKAGE_TARGET): scriptmode := $(TARGET_OTA_SCRIPT_MODE)
-endif
-
 $(INTERNAL_OTA_PACKAGE_TARGET): $(BUILT_TARGET_FILES_PACKAGE) otatools
 	@echo "Package OTA: $@"
 	$(hide) ./build/tools/releasetools/ota_from_target_files \
-	   -m $(scriptmode) \
 	   -p $(HOST_OUT) \
            -k $(KEY_CERT_PAIR) \
            $(BUILT_TARGET_FILES_PACKAGE) $@
@@ -994,8 +986,12 @@
 
 .PHONY: installed-file-list
 installed-file-list: $(INSTALLED_FILES_FILE)
+ifneq ($(filter sdk,$(MAKECMDGOALS)),)
 $(call dist-for-goals, sdk, $(INSTALLED_FILES_FILE))
+endif
+ifneq ($(filter sdk_addon,$(MAKECMDGOALS)),)
 $(call dist-for-goals, sdk_addon, $(INSTALLED_FILES_FILE))
+endif
 
 # -----------------------------------------------------------------
 # A zip of the tests that are built when running "make tests".
@@ -1072,6 +1068,17 @@
 	$(hide) mkdir -p $(dir $@)
 	$(hide) zip -qj $@ $(TARGET_OUT_APPS)/*
 
+
+#------------------------------------------------------------------
+# A zip of emma code coverage meta files. Generated for fully emma
+# instrumented build.
+#
+EMMA_META_ZIP := $(PRODUCT_OUT)/emma_meta.zip
+$(EMMA_META_ZIP): $(INSTALLED_SYSTEMIMAGE)
+	@echo "Collecting Emma coverage meta files."
+	$(hide) find $(TARGET_COMMON_OUT_ROOT) -name "coverage.em" | \
+		zip -@ -q $@
+
 endif	# TARGET_SIMULATOR != true
 
 # -----------------------------------------------------------------
@@ -1246,6 +1253,15 @@
 		cd $(dir $@) && zip -rq $(notdir $@) $(PRIVATE_NAME) \
 	) || ( rm -rf $(PRIVATE_DIR) $@ && exit 44 )
 
+
+# Is a Windows SDK requested? If so, we need some definitions from here
+# in order to find the Linux SDK used to create the Windows one.
+ifneq ($(filter win_sdk,$(MAKECMDGOALS)),)
+LINUX_SDK_NAME := $(sdk_name)
+LINUX_SDK_DIR  := $(sdk_dir)
+include $(TOPDIR)development/build/tools/windows_sdk.mk
+endif
+
 endif # !simulator
 
 # -----------------------------------------------------------------
diff --git a/core/base_rules.mk b/core/base_rules.mk
index 0ad797a..5ce7640 100644
--- a/core/base_rules.mk
+++ b/core/base_rules.mk
@@ -319,8 +319,14 @@
 ifeq ($(my_prefix),TARGET_)
 ifeq ($(LOCAL_SDK_VERSION),)
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_BOOTCLASSPATH := -bootclasspath $(call java-lib-files,core)
-endif
-endif
+else
+ifeq ($(LOCAL_SDK_VERSION),current)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_BOOTCLASSPATH := -bootclasspath $(call java-lib-files,android_stubs_current)
+else
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_BOOTCLASSPATH := -bootclasspath $(call java-lib-files,sdk_v$(LOCAL_SDK_VERSION))
+endif # current
+endif # LOCAL_SDK_VERSION
+endif # TARGET_
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_RESOURCE_DIR := $(LOCAL_RESOURCE_DIR)
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_EXTRA_JAR_ARGS := $(extra_jar_args)
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_ASSET_DIR := $(LOCAL_ASSET_DIR)
diff --git a/core/cleanspec.mk b/core/cleanspec.mk
index d3fc9a4..c85c450 100644
--- a/core/cleanspec.mk
+++ b/core/cleanspec.mk
@@ -22,7 +22,7 @@
 # IDEALLY, THOSE STEPS SHOULD BE DONE ATOMICALLY.
 # **********************************************************************
 #
-INTERNAL_CLEAN_BUILD_VERSION := 3
+INTERNAL_CLEAN_BUILD_VERSION := 4
 #
 # ***********************************************************************
 # Do not touch INTERNAL_CLEAN_BUILD_VERSION if you've added a clean step!
@@ -58,132 +58,6 @@
 #$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/core_intermediates)
 #$(call add-clean-step, find $(OUT_DIR) -type f -name "IGTalkSession*" -print0 | xargs -0 rm -f)
 #$(call add-clean-step, rm -rf $(PRODUCT_OUT)/data/*)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libwebcore_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libwebcore_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libwebcore_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libwebcore_intermediates)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/com.google.android.datamessaging_intermediates)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/product/sholes/obj/SHARED_LIBRARIES/libhardware_legacy_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/etc/pvasflocal.cfg)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/product/sholes)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libwebcore_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libwebcore_intermediates)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/framework_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/media/audio/ringtones/Silence.ogg)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/media/audio/ringtones/notifications/Silence.ogg)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/product/passion/obj/SHARED_LIBRARIES/libhardware_legacy_intermediates)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/com.google.android.datamessaging_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libcrypto_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libssl_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/EXECUTABLES/openssl_intermediates)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/product/sholes/system/build.prop)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libwebcore_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libwebcore_intermediates)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/framework_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/bin/bugreport)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libwebcore_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libwebcore_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libdvm_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libandroid_runtime_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libwebcore_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libwebcore_intermediates)
-$(call add-clean-step, rm -rf $(OUT_DIR)/obj/target/common/obj/APPS/VoiceSearch_intermediates)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/VoiceSearch_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libgps-rpc_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/pdsm_atl_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libgps_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libhardware_legacy_intermediates)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/product/*/system/app/Launcher.apk)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/framework_intermediates/src/core/java/android/bluetooth/)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/product/sholes/system/build.prop)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/APPS/com.amazon.mp3_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/com.amazon.mp3.apk)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/build.prop)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/APPS)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/build.prop)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libwebcore_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libwebcore_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/APPS)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/build.prop)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/framework_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/EXECUTABLES/openssl_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libwebcore_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libwebcore_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libv8_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libwebcore_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libwebcore_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libjs_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libv8_intermediates)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/framework_intermediates/src/core/java/com/android/internal/os/IDropBoxService.java)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/APPS)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/build.prop)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/GoogleSubscribedFeedsProvider.apk)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/build.prop)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/build.prop)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/APPS)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/framework_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libhardware_legacy_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/build.prop)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/APPS)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libmediaplayerservice_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libstagefright_intermediates)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/GoogleServicesFramework_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/VoiceSearchWithKeyboard.apk)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/Email_intermediates)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/Email_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/vendor/google_voiceime)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/QuickSearchBox.apk)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libdvm_intermediates)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/framework_intermediates/src/core/java/android/speech)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/Email_intermediates)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/AndroidTests_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/EnhancedGoogleSearchProvider.apk)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/*)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/framework_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/GoogleCheckin.apk)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libdvm*)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libgtest_main_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libgtest_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/APPS/Music*)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/Music*)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/APPS/Music*)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/Music*)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/Launcher.apk)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/AlarmClock.apk)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/Calendar.apk)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/DeskClock.apk)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/Email.apk)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/Facebook.apk)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/Gallery3D.apk)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/Maps.apk)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/MyFaves.apk)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/googlevoice.apk)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/kickback.apk)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/soundback.apk)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/talkback.apk)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/APPS/Launcher*)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/Launcher*.apk)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/APPS/Music*)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/Music*)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/jsr305_intermediates)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/guava_intermediates)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/APPS)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/*)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/APPS)
-$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/*)
-$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS)
 
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
diff --git a/core/combo/TARGET_linux-arm.mk b/core/combo/TARGET_linux-arm.mk
index 972b10c..27e04ce 100644
--- a/core/combo/TARGET_linux-arm.mk
+++ b/core/combo/TARGET_linux-arm.mk
@@ -222,8 +222,8 @@
 	$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
 	$(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \
 	-o $@ \
-	$(PRIVATE_LDFLAGS) \
 	$(TARGET_GLOBAL_LDFLAGS) \
+	$(PRIVATE_LDFLAGS) \
 	$(TARGET_FDO_LIB) \
 	$(TARGET_LIBGCC)
 endef
@@ -240,8 +240,8 @@
 	$(TARGET_CRTBEGIN_DYNAMIC_O) \
 	$(PRIVATE_ALL_OBJECTS) \
 	$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
-	$(PRIVATE_LDFLAGS) \
 	$(TARGET_GLOBAL_LDFLAGS) \
+	$(PRIVATE_LDFLAGS) \
 	$(TARGET_FDO_LIB) \
 	$(TARGET_LIBGCC) \
 	$(TARGET_CRTEND_O)
@@ -253,8 +253,8 @@
 	-o $@ \
 	$(TARGET_GLOBAL_LD_DIRS) \
 	$(TARGET_CRTBEGIN_STATIC_O) \
-	$(PRIVATE_LDFLAGS) \
 	$(TARGET_GLOBAL_LDFLAGS) \
+	$(PRIVATE_LDFLAGS) \
 	$(PRIVATE_ALL_OBJECTS) \
 	$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
 	$(TARGET_FDO_LIB) \
diff --git a/core/config.mk b/core/config.mk
index 3eddc13..a4d3154 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -195,7 +195,6 @@
 YACC:= bison -d
 DOXYGEN:= doxygen
 AAPT := $(HOST_OUT_EXECUTABLES)/aapt$(HOST_EXECUTABLE_SUFFIX)
-ACP := $(HOST_OUT_EXECUTABLES)/acp$(HOST_EXECUTABLE_SUFFIX)
 AIDL := $(HOST_OUT_EXECUTABLES)/aidl$(HOST_EXECUTABLE_SUFFIX)
 ICUDATA := $(HOST_OUT_EXECUTABLES)/icudata$(HOST_EXECUTABLE_SUFFIX)
 SIGNAPK_JAR := $(HOST_OUT_JAVA_LIBRARIES)/signapk$(COMMON_JAVA_PACKAGE_SUFFIX)
@@ -214,6 +213,9 @@
 PROGUARD := external/proguard/bin/proguard.sh
 JAVATAGS := build/tools/java-event-log-tags.py
 
+# ACP is always for the build OS, not for the host OS
+ACP := $(BUILD_OUT_EXECUTABLES)/acp$(BUILD_EXECUTABLE_SUFFIX)
+
 # dx is java behind a shell script; no .exe necessary.
 DX := $(HOST_OUT_EXECUTABLES)/dx
 KCM := $(HOST_OUT_EXECUTABLES)/kcm$(HOST_EXECUTABLE_SUFFIX)
diff --git a/core/definitions.mk b/core/definitions.mk
index 3f1dc25..72888ed 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -1233,7 +1233,7 @@
     $(addprefix --min-sdk-version , $(DEFAULT_APP_TARGET_SDK)) \
     $(addprefix --target-sdk-version , $(DEFAULT_APP_TARGET_SDK)) \
     $(addprefix --version-code , $(PLATFORM_SDK_VERSION)) \
-    $(addprefix --version-name , $(PLATFORM_VERSION)) \
+    $(addprefix --version-name , $(PLATFORM_VERSION)-$(BUILD_NUMBER)) \
     $(addprefix --rename-manifest-package , $(PRIVATE_MANIFEST_PACKAGE_NAME)) \
     $(addprefix --rename-instrumentation-target-package , $(PRIVATE_INSTRUMENTATION_FOR_PACKAGE_NAME))
 endef
@@ -1378,7 +1378,7 @@
     $(addprefix --min-sdk-version , $(DEFAULT_APP_TARGET_SDK)) \
     $(addprefix --target-sdk-version , $(DEFAULT_APP_TARGET_SDK)) \
     $(addprefix --version-code , $(PLATFORM_SDK_VERSION)) \
-    $(addprefix --version-name , $(PLATFORM_VERSION)) \
+    $(addprefix --version-name , $(PLATFORM_VERSION)-$(BUILD_NUMBER)) \
     $(addprefix --rename-manifest-package , $(PRIVATE_MANIFEST_PACKAGE_NAME)) \
     $(addprefix --rename-instrumentation-target-package , $(PRIVATE_INSTRUMENTATION_FOR_PACKAGE_NAME)) \
     -F $@
diff --git a/core/envsetup.mk b/core/envsetup.mk
index 6d14753..f8a2027 100644
--- a/core/envsetup.mk
+++ b/core/envsetup.mk
@@ -68,9 +68,17 @@
 ifneq (,$(findstring CYGWIN,$(UNAME)))
 	HOST_OS := windows
 endif
+
+# BUILD_OS is the real host doing the build.
+BUILD_OS := $(HOST_OS)
+
+# Under Linux, if USE_MINGW is set, we change HOST_OS to Windows to build the
+# Windows SDK. Only a subset of tools and SDK will manage to build properly.
+ifeq ($(HOST_OS),linux)
 ifneq ($(USE_MINGW),)
 	HOST_OS := windows
 endif
+endif
 
 ifeq ($(HOST_OS),)
 $(error Unable to determine HOST_OS from uname -sm: $(UNAME)!)
@@ -86,6 +94,8 @@
 	HOST_ARCH := ppc
 endif
 
+BUILD_ARCH := $(HOST_ARCH)
+
 ifeq ($(HOST_ARCH),)
 $(error Unable to determine HOST_ARCH from uname -sm: $(UNAME)!)
 endif
@@ -168,6 +178,8 @@
 HOST_OUT_debug := $(HOST_OUT_ROOT_debug)/$(HOST_OS)-$(HOST_ARCH)
 HOST_OUT := $(HOST_OUT_$(HOST_BUILD_TYPE))
 
+BUILD_OUT := $(OUT_DIR)/host/$(BUILD_OS)-$(BUILD_ARCH)
+
 ifeq ($(TARGET_SIMULATOR),true)
   # Any arch- or os-specific parts of the simulator (everything
   # under product/) are actually host-dependent.
@@ -185,6 +197,8 @@
 
 OUT_DOCS := $(TARGET_COMMON_OUT_ROOT)/docs
 
+BUILD_OUT_EXECUTABLES:= $(BUILD_OUT)/bin
+
 HOST_OUT_EXECUTABLES:= $(HOST_OUT)/bin
 HOST_OUT_SHARED_LIBRARIES:= $(HOST_OUT)/lib
 HOST_OUT_JAVA_LIBRARIES:= $(HOST_OUT)/framework
diff --git a/core/main.mk b/core/main.mk
index 014c050..67b9183 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -179,6 +179,9 @@
 ifneq ($(filter sdk,$(MAKECMDGOALS)),)
 is_sdk_build := true
 endif
+ifneq ($(filter win_sdk,$(MAKECMDGOALS)),)
+is_sdk_build := true
+endif
 ifneq ($(filter sdk_addon,$(MAKECMDGOALS)),)
 is_sdk_build := true
 endif
@@ -254,6 +257,7 @@
 ifneq ($(words $(filter-out $(INTERNAL_MODIFIER_TARGETS),$(MAKECMDGOALS))),1)
 $(error The 'sdk' target may not be specified with any other targets)
 endif
+
 # TODO: this should be eng I think.  Since the sdk is built from the eng
 # variant.
 tags_to_install := user debug eng
@@ -348,18 +352,21 @@
 # Bring in all modules that need to be built.
 ifneq ($(dont_bother),true)
 
-ifeq ($(HOST_OS),windows)
-SDK_ONLY := true
-endif
 ifeq ($(HOST_OS)-$(HOST_ARCH),darwin-ppc)
 SDK_ONLY := true
+$(info Building the SDK under darwin-ppc is actually obsolete and unsupported.)
+$(error stop)
+endif
+
+ifeq ($(HOST_OS),windows)
+SDK_ONLY := true
 endif
 
 ifeq ($(SDK_ONLY),true)
 
 # ----- SDK for Windows ------
-# These configure the build targets that are available for the SDK under Cygwin.
-# The first section defines all the C/C++ tools that can be compiled under Cygwin,
+# These configure the build targets that are available for the SDK under Windows.
+# The first section defines all the C/C++ tools that can be compiled in C/C++,
 # the second section defines all the Java ones (assuming javac is available.)
 
 subdirs := \
@@ -380,10 +387,7 @@
 	external/qemu \
 	external/sqlite/dist \
 	external/zlib \
-	frameworks/base/libs/utils \
-	frameworks/base/tools/aapt \
-	frameworks/base/tools/aidl \
-	frameworks/base/opengl/libs \
+	frameworks/base \
 	system/core/adb \
 	system/core/fastboot \
 	system/core/libcutils \
@@ -393,11 +397,10 @@
 # The following can only be built if "javac" is available.
 # This check is used when building parts of the SDK under Cygwin.
 ifneq (,$(shell which javac 2>/dev/null))
-$(warning sdk-only: javac available.)
 subdirs += \
 	build/tools/signapk \
 	dalvik/dx \
-	dalvik/libcore \
+	libcore \
 	sdk/archquery \
 	sdk/androidprefs \
 	sdk/apkbuilder \
@@ -410,10 +413,9 @@
 	sdk/layoutopt \
 	development/apps \
 	development/tools/mkstubs \
-	frameworks/base/tools/layoutlib \
 	packages
 else
-$(warning sdk-only: javac not available.)
+$(warning SDK_ONLY: javac not available.)
 endif
 
 # Exclude tools/acp when cross-compiling windows under linux
@@ -687,6 +689,8 @@
 .PHONY: droid tests
 droid tests: droidcore
 
+# Dist for droid if droid is among the cmd goals, or no cmd goal is given.
+ifneq ($(filter droid,$(MAKECMDGOALS))$(filter ||,|$(filter-out $(INTERNAL_MODIFIER_TARGETS),$(MAKECMDGOALS))|),)
 $(call dist-for-goals, droid, \
 	$(INTERNAL_UPDATE_PACKAGE_TARGET) \
 	$(INTERNAL_OTA_PACKAGE_TARGET) \
@@ -698,8 +702,15 @@
 	$(INSTALLED_BUILD_PROP_TARGET) \
 	$(BUILT_TARGET_FILES_PACKAGE) \
 	$(INSTALLED_ANDROID_INFO_TXT_TARGET) \
+	$(INSTALLED_RAMDISK_TARGET) \
  )
 
+ifeq ($(EMMA_INSTRUMENT),true)
+$(call dist-for-goals, droid, \
+	$(EMMA_META_ZIP) \
+ )
+endif  # EMMA_INSTRUMENT
+
 # Tests are installed in userdata.img.  If we're building the tests
 # variant, copy it for "make tests dist".  Also copy a zip of the
 # contents of userdata.img, so that people can easily extract a
@@ -709,7 +720,8 @@
 	$(INSTALLED_USERDATAIMAGE_TARGET) \
 	$(BUILT_TESTS_ZIP_PACKAGE) \
  )
-endif
+endif  # tests
+endif  # droid in $(MAKECMDGOALS)
 
 .PHONY: docs
 docs: $(ALL_DOCS)
@@ -717,10 +729,26 @@
 .PHONY: sdk
 ALL_SDK_TARGETS := $(INTERNAL_SDK_TARGET)
 sdk: $(ALL_SDK_TARGETS)
+ifneq ($(filter sdk,$(MAKECMDGOALS)),)
 $(call dist-for-goals,sdk, \
 	$(ALL_SDK_TARGETS) \
 	$(SYMBOLS_ZIP) \
  )
+endif
+
+.PHONY: samplecode
+sample_MODULES := $(sort $(call get-tagged-modules,samples))
+sample_APKS_DEST_PATH := $(TARGET_COMMON_OUT_ROOT)/samples
+sample_APKS_COLLECTION := \
+        $(foreach module,$(sample_MODULES),$(sample_APKS_DEST_PATH)/$(notdir $(module)))
+$(foreach module,$(sample_MODULES),$(eval $(call \
+        copy-one-file,$(module),$(sample_APKS_DEST_PATH)/$(notdir $(module)))))
+sample_ADDITIONAL_INSTALLED := \
+        $(filter-out $(modules_to_install) $(modules_to_check) $(ALL_PREBUILT),$(sample_MODULES))
+samplecode: $(sample_APKS_COLLECTION)
+	@echo "Collect sample code apks: $^"
+	# remove apks that are not intended to be installed.
+	rm -f $(sample_ADDITIONAL_INSTALLED)
 
 .PHONY: findbugs
 findbugs: $(INTERNAL_FINDBUGS_HTML_TARGET) $(INTERNAL_FINDBUGS_XML_TARGET)
diff --git a/core/tasks/cts.mk b/core/tasks/cts.mk
index 917c5dc..8f60d94 100644
--- a/core/tasks/cts.mk
+++ b/core/tasks/cts.mk
@@ -65,11 +65,13 @@
 CTS_CASE_LIST := \
 	TestDeviceSetup \
 	CtsTestStubs \
+	CtsAccessibilityServiceTestCases \
 	CtsAccountManagerTestCases \
 	CtsAppTestCases \
 	CtsBluetoothTestCases \
 	CtsContentTestCases \
 	CtsDatabaseTestCases \
+	CtsDelegatingAccessibilityService \
 	CtsDpiTestCases \
 	CtsDpiTestCases2 \
 	CtsExampleTestCases \
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index d609cee..c17798e 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -41,7 +41,7 @@
   # which is the version that we reveal to the end user.
   # Update this value when the platform version changes (rather
   # than overriding it somewhere else).  Can be an arbitrary string.
-  PLATFORM_VERSION := Kraken
+  PLATFORM_VERSION := Gingerbread
 endif
 
 ifeq "" "$(PLATFORM_SDK_VERSION)"
@@ -59,7 +59,7 @@
 ifeq "" "$(PLATFORM_VERSION_CODENAME)"
   # This is the current development code-name, if the build is not a final
   # release build.  If this is a final release build, it is simply "REL".
-  PLATFORM_VERSION_CODENAME := Kraken
+  PLATFORM_VERSION_CODENAME := Gingerbread
 endif
 
 ifeq "" "$(DEFAULT_APP_TARGET_SDK)"
diff --git a/target/product/locales_full.mk b/target/product/locales_full.mk
new file mode 100644
index 0000000..f46caeb
--- /dev/null
+++ b/target/product/locales_full.mk
@@ -0,0 +1,5 @@
+# The locales from the ICU "-large.dat" data set.
+# See external/icu4c/stubdata.
+# This is distinct from "languages_full.mk", which contains those locales for
+# which we have translations. If you like, this file is i18n rather than l18n.
+PRODUCT_LOCALES := cs_CZ da_DA de_AT de_CH de_DE de_LI el_GR en_AU en_CA en_GB en_NZ en_SG en_US es_ES fr_CA fr_CH fr_BE fr_FR it_CH it_IT ja_JP ko_KR nb_NO nl_BE nl_NL pl_PL pt_PT ru_RU sv_SV tr_TR zh_CN zh_HK zh_TW
diff --git a/target/product/sdk.mk b/target/product/sdk.mk
index 1a7e31c..03e0fe8 100644
--- a/target/product/sdk.mk
+++ b/target/product/sdk.mk
@@ -62,40 +62,13 @@
 
 $(call inherit-product, $(SRC_TARGET_DIR)/product/core.mk)
 
+$(call inherit-product, $(SRC_TARGET_DIR)/product/locales_full.mk)
+
 # Overrides
 PRODUCT_BRAND := generic
 PRODUCT_NAME := sdk
 PRODUCT_DEVICE := generic
-PRODUCT_LOCALES := \
-	ldpi \
-	hdpi \
-	mdpi \
-	en_US \
-	en_GB \
-	en_CA \
-	en_AU \
-	en_NZ \
-	en_SG \
-	ja_JP \
-	fr_FR \
-	fr_BE \
-	fr_CA \
-	fr_CH \
-	it_IT \
-	it_CH \
-	es_ES \
-	de_DE \
-	de_AT \
-	de_CH \
-	de_LI \
-	nl_NL \
-	nl_BE \
-	cs_CZ \
-	pl_PL \
-	zh_CN \
-	zh_TW \
-	ru_RU \
-	ko_KR
+PRODUCT_LOCALES += ldpi hdpi mdpi
 
 # include available languages for TTS in the system image
 include external/svox/pico/lang/PicoLangDeDeInSystem.mk
diff --git a/target/product/sim.mk b/target/product/sim.mk
index 51b3676..09722d6 100644
--- a/target/product/sim.mk
+++ b/target/product/sim.mk
@@ -1,6 +1,6 @@
 $(call inherit-product, $(SRC_TARGET_DIR)/product/generic.mk)
+$(call inherit-product, $(SRC_TARGET_DIR)/product/locales_full.mk)
 
 # Overrides
 PRODUCT_NAME := sim
 PRODUCT_DEVICE := sim
-PRODUCT_LOCALES := en_US
diff --git a/tools/droiddoc/templates/assets/android-developer-docs.css b/tools/droiddoc/templates/assets/android-developer-docs.css
index 0076c38..f7df293 100644
--- a/tools/droiddoc/templates/assets/android-developer-docs.css
+++ b/tools/droiddoc/templates/assets/android-developer-docs.css
@@ -101,7 +101,7 @@
   padding: 0;
 }
 /*second level (nested) list*/
-#side-nav li li li a { 
+#side-nav li li li a {
   padding: 0 0 0 28px;
 }
 /*third level (nested) list*/
@@ -356,7 +356,7 @@
   color:#999;
 }
 
-div.api-level { 
+div.api-level {
   font-size:.8em;
   font-weight:normal;
   color:#999;
@@ -365,7 +365,7 @@
   margin-top:-25px;
 }
 
-#api-info-block div.api-level { 
+#api-info-block div.api-level {
   font-size:1.3em;
   font-weight:bold;
   float:none;
@@ -595,7 +595,7 @@
   margin:.5em .25em;
 }
 
-/* API reference: a block containing 
+/* API reference: a block containing
 a detailed description, a params table,
 seealso list, etc */
 .jd-tagdata {
@@ -759,7 +759,7 @@
 }
 
 li p.note, li p.warning {
-  margin: .5em 0 0 0;  
+  margin: .5em 0 0 0;
   padding: .2em .5em .2em .9em;
 }
 
@@ -959,7 +959,9 @@
 }
 
 #jd-content .sidebox h2,
-#jd-content .sidebox h3 {
+#jd-content .sidebox h3,
+#jd-content .sidebox h4,
+#jd-content .sidebox h5 {
   border:none;
   font-size:1em;
   margin:0;
@@ -1144,8 +1146,8 @@
 
 /* INLAY 180 COPY and 240PX EXTENSION */
 /* modified to 43px so that all browsers eliminate the package panel h-scroll */
-.g-tpl-240 .g-unit, 
-.g-unit .g-tpl-240 .g-unit, 
+.g-tpl-240 .g-unit,
+.g-unit .g-tpl-240 .g-unit,
 .g-unit .g-unit .g-tpl-240 .g-unit {
   display: block;
   margin: 0 0 0 243px;
@@ -1161,8 +1163,8 @@
   float: left;
 }
 /* 240px alt */
-.g-tpl-240-alt .g-unit, 
-.g-unit .g-tpl-240-alt .g-unit, 
+.g-tpl-240-alt .g-unit,
+.g-unit .g-tpl-240-alt .g-unit,
 .g-unit .g-unit .g-tpl-240-alt .g-unit {
   display: block;
   margin: 0 243px 0 0;
@@ -1179,8 +1181,8 @@
 }
 
 /* 180px */
-.g-tpl-180 .g-unit, 
-.g-unit .g-tpl-180 .g-unit, 
+.g-tpl-180 .g-unit,
+.g-unit .g-tpl-180 .g-unit,
 .g-unit .g-unit .g-tpl-180 .g-unit {
   display: block;
   margin: 0 0 0 180px;
@@ -1196,8 +1198,8 @@
   float: left;
 }
 /* 180px alt */
-.g-tpl-180-alt .g-unit, 
-.g-unit .g-tpl-180-alt .g-unit, 
+.g-tpl-180-alt .g-unit,
+.g-unit .g-tpl-180-alt .g-unit,
 .g-unit .g-unit .g-tpl-180-alt .g-unit {
   display: block;
   margin: 0 180px 0 0;
@@ -1286,7 +1288,7 @@
     word-wrap: break-word; /* IE 5.5+ */
   }
 
-  h1, h2, h3, h4, h5, h6 { 
+  h1, h2, h3, h4, h5, h6 {
     page-break-after: avoid;
   }
 
diff --git a/tools/releasetools/amend_generator.py b/tools/releasetools/amend_generator.py
deleted file mode 100644
index b543bf7..0000000
--- a/tools/releasetools/amend_generator.py
+++ /dev/null
@@ -1,222 +0,0 @@
-# Copyright (C) 2009 The Android Open Source Project
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-import os
-
-import common
-
-class AmendGenerator(object):
-  """Class to generate scripts in the 'amend' recovery script language
-  used up through cupcake."""
-
-  def __init__(self):
-    self.script = ['assert compatible_with("0.2") == "true"']
-    self.included_files = set()
-
-  def MakeTemporary(self):
-    """Make a temporary script object whose commands can latter be
-    appended to the parent script with AppendScript().  Used when the
-    caller wants to generate script commands out-of-order."""
-    x = AmendGenerator()
-    x.script = []
-    x.included_files = self.included_files
-    return x
-
-  @staticmethod
-  def _FileRoot(fn):
-    """Convert a file path to the 'root' notation used by amend."""
-    if fn.startswith("/system/"):
-      return "SYSTEM:" + fn[8:]
-    elif fn == "/system":
-      return "SYSTEM:"
-    elif fn.startswith("/tmp/"):
-      return "CACHE:.." + fn
-    else:
-      raise ValueError("don't know root for \"%s\"" % (fn,))
-
-  @staticmethod
-  def _PartitionRoot(partition):
-    """Convert a partition name to the 'root' notation used by amend."""
-    if partition == "userdata":
-      return "DATA:"
-    else:
-      return partition.upper() + ":"
-
-  def AppendScript(self, other):
-    """Append the contents of another script (which should be created
-    with temporary=True) to this one."""
-    self.script.extend(other.script)
-    self.included_files.update(other.included_files)
-
-  def AssertSomeFingerprint(self, *fp):
-    """Assert that the current fingerprint is one of *fp."""
-    x = [('file_contains("SYSTEM:build.prop", '
-          '"ro.build.fingerprint=%s") == "true"') % i for i in fp]
-    self.script.append("assert %s" % (" || ".join(x),))
-
-  def AssertOlderBuild(self, timestamp):
-    """Assert that the build on the device is older (or the same as)
-    the given timestamp."""
-    self.script.append("run_program PACKAGE:check_prereq %s" % (timestamp,))
-    self.included_files.add("check_prereq")
-
-  def AssertDevice(self, device):
-    """Assert that the device identifier is the given string."""
-    self.script.append('assert getprop("ro.product.device") == "%s" || '
-                       'getprop("ro.build.product") == "%s"' % (device, device))
-
-  def AssertSomeBootloader(self, *bootloaders):
-    """Asert that the bootloader version is one of *bootloaders."""
-    self.script.append("assert " +
-                  " || ".join(['getprop("ro.bootloader") == "%s"' % (b,)
-                               for b in bootloaders]))
-
-  def ShowProgress(self, frac, dur):
-    """Update the progress bar, advancing it over 'frac' over the next
-    'dur' seconds."""
-    self.script.append("show_progress %f %d" % (frac, int(dur)))
-
-  def SetProgress(self, frac):
-    """Not implemented in amend."""
-    pass
-
-  def PatchCheck(self, filename, *sha1):
-    """Check that the given file (or MTD reference) has one of the
-    given *sha1 hashes."""
-    out = ["run_program PACKAGE:applypatch -c %s" % (filename,)]
-    for i in sha1:
-      out.append(" " + i)
-    self.script.append("".join(out))
-    self.included_files.add(("applypatch_static", "applypatch"))
-
-  # Not quite right since we don't need to check /cache/saved.file on
-  # failure, but shouldn't hurt.
-  FileCheck = PatchCheck
-
-  def CacheFreeSpaceCheck(self, amount):
-    """Check that there's at least 'amount' space that can be made
-    available on /cache."""
-    self.script.append("run_program PACKAGE:applypatch -s %d" % (amount,))
-    self.included_files.add(("applypatch_static", "applypatch"))
-
-  def Mount(self, kind, what, path):
-    # no-op; amend uses it's 'roots' system to automatically mount
-    # things when they're referred to
-    pass
-
-  def UnpackPackageDir(self, src, dst):
-    """Unpack a given directory from the OTA package into the given
-    destination directory."""
-    dst = self._FileRoot(dst)
-    self.script.append("copy_dir PACKAGE:%s %s" % (src, dst))
-
-  def Comment(self, comment):
-    """Write a comment into the update script."""
-    self.script.append("")
-    for i in comment.split("\n"):
-      self.script.append("# " + i)
-    self.script.append("")
-
-  def Print(self, message):
-    """Log a message to the screen (if the logs are visible)."""
-    # no way to do this from amend; substitute a script comment instead
-    self.Comment(message)
-
-  def FormatPartition(self, partition):
-    """Format the given MTD partition."""
-    self.script.append("format %s" % (self._PartitionRoot(partition),))
-
-  def DeleteFiles(self, file_list):
-    """Delete all files in file_list."""
-    line = []
-    t = 0
-    for i in file_list:
-      i = self._FileRoot(i)
-      line.append(i)
-      t += len(i) + 1
-      if t > 80:
-        self.script.append("delete " + " ".join(line))
-        line = []
-        t = 0
-    if line:
-      self.script.append("delete " + " ".join(line))
-
-  def ApplyPatch(self, srcfile, tgtfile, tgtsize, tgtsha1, *patchpairs):
-    """Apply binary patches (in *patchpairs) to the given srcfile to
-    produce tgtfile (which may be "-" to indicate overwriting the
-    source file."""
-    if len(patchpairs) % 2 != 0:
-      raise ValueError("bad patches given to ApplyPatch")
-    self.script.append(
-        ("run_program PACKAGE:applypatch %s %s %s %d " %
-         (srcfile, tgtfile, tgtsha1, tgtsize)) +
-        " ".join(["%s:%s" % patchpairs[i:i+2]
-                  for i in range(0, len(patchpairs), 2)]))
-    self.included_files.add(("applypatch_static", "applypatch"))
-
-  def WriteFirmwareImage(self, kind, fn):
-    """Arrange to update the given firmware image (kind must be
-    "hboot" or "radio") when recovery finishes."""
-    self.script.append("write_%s_image PACKAGE:%s" % (kind, fn))
-
-  def WriteRawImage(self, partition, fn):
-    """Write the given file into the given MTD partition."""
-    self.script.append("write_raw_image PACKAGE:%s %s" %
-                       (fn, self._PartitionRoot(partition)))
-
-  def SetPermissions(self, fn, uid, gid, mode):
-    """Set file ownership and permissions."""
-    fn = self._FileRoot(fn)
-    self.script.append("set_perm %d %d 0%o %s" % (uid, gid, mode, fn))
-
-  def SetPermissionsRecursive(self, fn, uid, gid, dmode, fmode):
-    """Recursively set path ownership and permissions."""
-    fn = self._FileRoot(fn)
-    self.script.append("set_perm_recursive %d %d 0%o 0%o %s" %
-                       (uid, gid, dmode, fmode, fn))
-
-  def MakeSymlinks(self, symlink_list):
-    """Create symlinks, given a list of (dest, link) pairs."""
-    self.DeleteFiles([i[1] for i in symlink_list])
-    self.script.extend(["symlink %s %s" % (i[0], self._FileRoot(i[1]))
-                        for i in sorted(symlink_list)])
-
-  def AppendExtra(self, extra):
-    """Append text verbatim to the output script."""
-    self.script.append(extra)
-
-  def UnmountAll(self):
-    pass
-
-  def AddToZip(self, input_zip, output_zip, input_path=None):
-    """Write the accumulated script to the output_zip file.  input_zip
-    is used as the source for any ancillary binaries needed by the
-    script.  If input_path is not None, it will be used as a local
-    path for binaries instead of input_zip."""
-    common.ZipWriteStr(output_zip, "META-INF/com/google/android/update-script",
-                       "\n".join(self.script) + "\n")
-    for i in self.included_files:
-      if isinstance(i, tuple):
-        sourcefn, targetfn = i
-      else:
-        sourcefn = i
-        targetfn = i
-      try:
-        if input_path is None:
-          data = input_zip.read(os.path.join("OTA/bin", sourcefn))
-        else:
-          data = open(os.path.join(input_path, sourcefn)).read()
-        common.ZipWriteStr(output_zip, targetfn, data, perms=0755)
-      except (IOError, KeyError), e:
-        raise ExternalError("unable to include binary %s: %s" % (i, e))
diff --git a/tools/releasetools/both_generator.py b/tools/releasetools/both_generator.py
deleted file mode 100644
index 4ae8d50..0000000
--- a/tools/releasetools/both_generator.py
+++ /dev/null
@@ -1,62 +0,0 @@
-# Copyright (C) 2009 The Android Open Source Project
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-import edify_generator
-import amend_generator
-
-class BothGenerator(object):
-  def __init__(self, version):
-    self.version = version
-    self.edify = edify_generator.EdifyGenerator(version)
-    self.amend = amend_generator.AmendGenerator()
-
-  def MakeTemporary(self):
-    x = BothGenerator(self.version)
-    x.edify = self.edify.MakeTemporary()
-    x.amend = self.amend.MakeTemporary()
-    return x
-
-  def AppendScript(self, other):
-    self.edify.AppendScript(other.edify)
-    self.amend.AppendScript(other.amend)
-
-  def _DoBoth(self, name, *args):
-    getattr(self.edify, name)(*args)
-    getattr(self.amend, name)(*args)
-
-  def AssertSomeFingerprint(self, *a): self._DoBoth("AssertSomeFingerprint", *a)
-  def AssertOlderBuild(self, *a): self._DoBoth("AssertOlderBuild", *a)
-  def AssertDevice(self, *a): self._DoBoth("AssertDevice", *a)
-  def AssertSomeBootloader(self, *a): self._DoBoth("AssertSomeBootloader", *a)
-  def ShowProgress(self, *a): self._DoBoth("ShowProgress", *a)
-  def PatchCheck(self, *a): self._DoBoth("PatchCheck", *a)
-  def FileCheck(self, filename, *sha1): self._DoBoth("FileCheck", *a)
-  def CacheFreeSpaceCheck(self, *a): self._DoBoth("CacheFreeSpaceCheck", *a)
-  def Mount(self, *a): self._DoBoth("Mount", *a)
-  def UnpackPackageDir(self, *a): self._DoBoth("UnpackPackageDir", *a)
-  def Comment(self, *a): self._DoBoth("Comment", *a)
-  def Print(self, *a): self._DoBoth("Print", *a)
-  def FormatPartition(self, *a): self._DoBoth("FormatPartition", *a)
-  def DeleteFiles(self, *a): self._DoBoth("DeleteFiles", *a)
-  def ApplyPatch(self, *a): self._DoBoth("ApplyPatch", *a)
-  def WriteFirmwareImage(self, *a): self._DoBoth("WriteFirmwareImage", *a)
-  def WriteRawImage(self, *a): self._DoBoth("WriteRawImage", *a)
-  def SetPermissions(self, *a): self._DoBoth("SetPermissions", *a)
-  def SetPermissionsRecursive(self, *a): self._DoBoth("SetPermissionsRecursive", *a)
-  def MakeSymlinks(self, *a): self._DoBoth("MakeSymlinks", *a)
-  def AppendExtra(self, *a): self._DoBoth("AppendExtra", *a)
-  def UnmountAll(self, *a): self._DoBoth("UnmountAll", *a)
-
-  def AddToZip(self, input_zip, output_zip, input_path=None):
-    self._DoBoth("AddToZip", input_zip, output_zip, input_path)
diff --git a/tools/releasetools/ota_from_target_files b/tools/releasetools/ota_from_target_files
index ba29f9b..8c3b2c2 100755
--- a/tools/releasetools/ota_from_target_files
+++ b/tools/releasetools/ota_from_target_files
@@ -44,10 +44,6 @@
   -e  (--extra_script)  <file>
       Insert the contents of file at the end of the update script.
 
-  -m  (--script_mode)  <mode>
-      Specify 'amend' or 'edify' scripts, or 'auto' to pick
-      automatically (this is the default).
-
 """
 
 import sys
@@ -68,9 +64,7 @@
 import zipfile
 
 import common
-import amend_generator
 import edify_generator
-import both_generator
 
 OPTIONS = common.OPTIONS
 OPTIONS.package_key = "build/target/product/security/testkey"
@@ -81,7 +75,6 @@
 OPTIONS.wipe_user_data = False
 OPTIONS.omit_prereq = False
 OPTIONS.extra_script = None
-OPTIONS.script_mode = 'auto'
 OPTIONS.worker_threads = 3
 
 def MostPopularKey(d, default):
@@ -343,22 +336,22 @@
 
 
 def WriteFullOTAPackage(input_zip, output_zip):
-  if OPTIONS.script_mode == "auto":
-    script = both_generator.BothGenerator(2)
-  elif OPTIONS.script_mode == "amend":
-    script = amend_generator.AmendGenerator()
-  else:
-    # TODO: how to determine this?  We don't know what version it will
-    # be installed on top of.  For now, we expect the API just won't
-    # change very often.
-    script = edify_generator.EdifyGenerator(2)
+  # TODO: how to determine this?  We don't know what version it will
+  # be installed on top of.  For now, we expect the API just won't
+  # change very often.
+  script = edify_generator.EdifyGenerator(3)
+
+  metadata = {"post-build": GetBuildProp("ro.build.fingerprint", input_zip),
+              "pre-device": GetBuildProp("ro.product.device", input_zip),
+              }
 
   device_specific = common.DeviceSpecificParams(
       input_zip=input_zip,
       input_version=GetRecoveryAPIVersion(input_zip),
       output_zip=output_zip,
       script=script,
-      input_tmp=OPTIONS.input_tmp)
+      input_tmp=OPTIONS.input_tmp,
+      metadata=metadata)
 
   if not OPTIONS.omit_prereq:
     ts = GetBuildProp("ro.build.date.utc", input_zip)
@@ -404,6 +397,13 @@
 
   script.UnmountAll()
   script.AddToZip(input_zip, output_zip)
+  WriteMetadata(metadata, output_zip)
+
+
+def WriteMetadata(metadata, output_zip):
+  common.ZipWriteStr(output_zip, "META-INF/com/android/metadata",
+                     "".join(["%s=%s\n" % kv
+                              for kv in sorted(metadata.iteritems())]))
 
 
 class File(object):
@@ -574,20 +574,13 @@
   source_version = GetRecoveryAPIVersion(source_zip)
   target_version = GetRecoveryAPIVersion(target_zip)
 
-  if OPTIONS.script_mode == 'amend':
-    script = amend_generator.AmendGenerator()
-  elif OPTIONS.script_mode == 'edify':
-    if source_version == 0:
-      print ("WARNING: generating edify script for a source that "
-             "can't install it.")
-    script = edify_generator.EdifyGenerator(source_version)
-  elif OPTIONS.script_mode == 'auto':
-    if source_version > 0:
-      script = edify_generator.EdifyGenerator(source_version)
-    else:
-      script = amend_generator.AmendGenerator()
-  else:
-    raise ValueError('unknown script mode "%s"' % (OPTIONS.script_mode,))
+  if source_version == 0:
+    print ("WARNING: generating edify script for a source that "
+           "can't install it.")
+  script = edify_generator.EdifyGenerator(source_version)
+
+  metadata = {"pre-device": GetBuildProp("ro.product.device", source_zip),
+              }
 
   device_specific = common.DeviceSpecificParams(
       source_zip=source_zip,
@@ -595,7 +588,8 @@
       target_zip=target_zip,
       target_version=target_version,
       output_zip=output_zip,
-      script=script)
+      script=script,
+      metadata=metadata)
 
   print "Loading target..."
   target_data = LoadSystemFiles(target_zip)
@@ -640,6 +634,8 @@
 
   source_fp = GetBuildProp("ro.build.fingerprint", source_zip)
   target_fp = GetBuildProp("ro.build.fingerprint", target_zip)
+  metadata["pre-build"] = source_fp
+  metadata["post-build"] = target_fp
 
   script.Mount("MTD", "system", "/system")
   script.AssertSomeFingerprint(source_fp, target_fp)
@@ -818,6 +814,7 @@
     scirpt.AppendExtra(OPTIONS.extra_script)
 
   script.AddToZip(target_zip, output_zip)
+  WriteMetadata(metadata, output_zip)
 
 
 def main(argv):
@@ -835,8 +832,6 @@
       OPTIONS.omit_prereq = True
     elif o in ("-e", "--extra_script"):
       OPTIONS.extra_script = a
-    elif o in ("-m", "--script_mode"):
-      OPTIONS.script_mode = a
     elif o in ("--worker_threads"):
       OPTIONS.worker_threads = int(a)
     else:
@@ -844,14 +839,13 @@
     return True
 
   args = common.ParseOptions(argv, __doc__,
-                             extra_opts="b:k:i:d:wne:m:",
+                             extra_opts="b:k:i:d:wne:",
                              extra_long_opts=["board_config=",
                                               "package_key=",
                                               "incremental_from=",
                                               "wipe_user_data",
                                               "no_prereq",
                                               "extra_script=",
-                                              "script_mode=",
                                               "worker_threads="],
                              extra_option_handler=option_handler)
 
@@ -859,9 +853,6 @@
     common.Usage(__doc__)
     sys.exit(1)
 
-  if OPTIONS.script_mode not in ("amend", "edify", "auto"):
-    raise ValueError('unknown script mode "%s"' % (OPTIONS.script_mode,))
-
   if OPTIONS.extra_script is not None:
     OPTIONS.extra_script = open(OPTIONS.extra_script).read()
 
diff --git a/tools/zipalign/Android.mk b/tools/zipalign/Android.mk
index f90a31c..9763bd2 100644
--- a/tools/zipalign/Android.mk
+++ b/tools/zipalign/Android.mk
@@ -18,17 +18,14 @@
 	libutils \
 	libcutils
 
-LOCAL_LDLIBS := -lz
-
 ifeq ($(HOST_OS),linux)
 LOCAL_LDLIBS += -lrt
 endif
 
-# dunno if we need this, but some of the other tools include it
-ifeq ($(HOST_OS),windows)
-ifeq ($(strip $(USE_CYGWIN),),)
-LOCAL_LDLIBS += -lws2_32
-endif
+ifneq ($(strip $(USE_MINGW)),)
+LOCAL_STATIC_LIBRARIES += libz
+else
+LOCAL_LDLIBS += -lz
 endif
 
 LOCAL_MODULE := zipalign