diff --git a/core/Makefile b/core/Makefile
index e67f9dd..e577063 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -1348,6 +1348,12 @@
 #
 #SDK_GNU_ERROR := true
 
+ifeq ($(HOST_OS),darwin)
+HOST_STRIP_SDK_LLVM := strip
+else
+HOST_STRIP_SDK_LLVM := strip --strip-all
+endif
+
 $(INTERNAL_SDK_TARGET): $(deps)
 	@echo "Package SDK: $@"
 	$(hide) rm -rf $(PRIVATE_DIR) $@
@@ -1373,8 +1379,11 @@
 		cp -f $(target_notice_file_txt) \
 				$(PRIVATE_DIR)/platforms/android-$(PLATFORM_VERSION)/images/NOTICE.txt && \
 		cp -f $(tools_notice_file_txt) $(PRIVATE_DIR)/tools/NOTICE.txt && \
+		if [ -f $(PRIVATE_DIR)/platform-tools/llvm-rs-cc ]; then \
+			$(HOST_STRIP_SDK_LLVM) $(PRIVATE_DIR)/platform-tools/llvm-rs-cc; \
+		fi && \
 		HOST_OUT_EXECUTABLES=$(HOST_OUT_EXECUTABLES) HOST_OS=$(HOST_OS) \
-                development/build/tools/sdk_clean.sh $(PRIVATE_DIR) && \
+			development/build/tools/sdk_clean.sh $(PRIVATE_DIR) && \
 		chmod -R ug+rwX $(PRIVATE_DIR) && \
 		cd $(dir $@) && zip -rq $(notdir $@) $(PRIVATE_NAME) \
 	) || ( rm -rf $(PRIVATE_DIR) $@ && exit 44 )
diff --git a/core/base_rules.mk b/core/base_rules.mk
index 7e2e127..6c06528 100644
--- a/core/base_rules.mk
+++ b/core/base_rules.mk
@@ -198,7 +198,7 @@
     $(error $(LOCAL_PATH): Illegal use of LOCAL_UNINSTALLABLE_MODULE)
   endif
 else
-  LOCAL_INSTALLED_MODULE := $(LOCAL_MODULE_PATH)/$(LOCAL_MODULE_SUBDIR)$(LOCAL_INSTALLED_MODULE_STEM)
+  LOCAL_INSTALLED_MODULE := $(LOCAL_MODULE_PATH)/$(LOCAL_INSTALLED_MODULE_STEM)
 endif
 
 # Assemble the list of targets to create PRIVATE_ variables for.
@@ -263,6 +263,44 @@
 endif
 
 ###########################################################
+## .proto files: Compile proto files to .java
+###########################################################
+proto_sources := $(filter %.proto,$(LOCAL_SRC_FILES))
+# Because names of the .java files compiled from .proto files are unknown until the
+# .proto files are compiled, we use a timestamp file as depedency.
+proto_java_sources_file_stamp :=
+ifneq ($(proto_sources),)
+proto_sources_fullpath := $(addprefix $(TOP_DIR)$(LOCAL_PATH)/, $(proto_sources))
+# By putting the generated java files into $(LOCAL_INTERMEDIATE_SOURCE_DIR), they will be
+# automatically found by the java compiling function transform-java-to-classes.jar.
+ifneq ($(LOCAL_INTERMEDIATE_SOURCE_DIR),)
+proto_java_intemediate_dir := $(LOCAL_INTERMEDIATE_SOURCE_DIR)/proto
+else
+# LOCAL_INTERMEDIATE_SOURCE_DIR may be not defined in non-java modules.
+proto_java_intemediate_dir := $(intermediates)/proto
+endif
+proto_java_sources_file_stamp := $(proto_java_intemediate_dir)/Proto.stamp
+proto_java_sources_dir := $(proto_java_intemediate_dir)/src
+
+$(proto_java_sources_file_stamp): PRIVATE_PROTO_INCLUDES := $(TOP)
+$(proto_java_sources_file_stamp): PRIVATE_PROTO_SRC_FILES := $(proto_sources_fullpath)
+$(proto_java_sources_file_stamp): PRIVATE_PROTO_JAVA_OUTPUT_DIR := $(proto_java_sources_dir)
+ifeq ($(LOCAL_PROTOC_OPTIMIZE_TYPE),micro)
+$(proto_java_sources_file_stamp): PRIVATE_PROTO_JAVA_OUTPUT_OPTION := --javamicro_out
+else
+$(proto_java_sources_file_stamp): PRIVATE_PROTO_JAVA_OUTPUT_OPTION := --java_out
+endif
+$(proto_java_sources_file_stamp): PRIVATE_PROTOC_FLAGS := $(LOCAL_PROTOC_FLAGS)
+$(proto_java_sources_file_stamp) : $(proto_sources_fullpath) $(PROTOC)
+	$(call transform-proto-to-java)
+
+#TODO: protoc should output the dependencies introduced by imports.
+
+LOCAL_INTERMEDIATE_TARGETS += $(proto_java_sources_file_stamp)
+endif # proto_sources
+
+
+###########################################################
 ## Java: Compile .java files to .class
 ###########################################################
 #TODO: pull this into java.make once host and target are combined
diff --git a/core/binary.mk b/core/binary.mk
index 48d1ba7..dcac435 100644
--- a/core/binary.mk
+++ b/core/binary.mk
@@ -146,6 +146,44 @@
 
 
 ###########################################################
+## Compile the .proto files to .cc and then to .o
+###########################################################
+proto_sources := $(filter %.proto,$(LOCAL_SRC_FILES))
+proto_generated_objects :=
+proto_generated_headers :=
+ifneq ($(proto_sources),)
+proto_sources_fullpath := $(addprefix $(LOCAL_PATH)/, $(proto_sources))
+proto_generated_cc_sources_dir := $(intermediates)/proto
+proto_generated_cc_sources := $(addprefix $(proto_generated_cc_sources_dir)/, \
+	$(patsubst %.proto,%.pb.cc,$(proto_sources_fullpath)))
+proto_generated_objects := $(patsubst %.cc,%.o, $(proto_generated_cc_sources))
+
+$(proto_generated_cc_sources): PRIVATE_PROTO_INCLUDES := $(TOP)
+$(proto_generated_cc_sources): PRIVATE_PROTO_CC_OUTPUT_DIR := $(proto_generated_cc_sources_dir)
+$(proto_generated_cc_sources): PRIVATE_PROTOC_FLAGS := $(LOCAL_PROTOC_FLAGS)
+$(proto_generated_cc_sources): $(proto_generated_cc_sources_dir)/%.pb.cc: %.proto $(PROTOC)
+	$(transform-proto-to-cc)
+
+proto_generated_headers := $(patsubst %.pb.cc,%.pb.h, $(proto_generated_cc_sources))
+$(proto_generated_headers): $(proto_generated_cc_sources_dir)/%.pb.h: $(proto_generated_cc_sources_dir)/%.pb.cc
+
+$(proto_generated_cc_sources): PRIVATE_ARM_MODE := $(normal_objects_mode)
+$(proto_generated_cc_sources): PRIVATE_ARM_CFLAGS := $(normal_objects_cflags)
+$(proto_generated_objects): $(proto_generated_cc_sources_dir)/%.o: $(proto_generated_cc_sources_dir)/%.cc
+	$(transform-$(PRIVATE_HOST)cpp-to-o)
+-include $(proto_generated_objects:%.o=%.P)
+
+LOCAL_C_INCLUDES += external/protobuf/src $(proto_generated_cc_sources_dir)
+LOCAL_CFLAGS += -DGOOGLE_PROTOBUF_NO_RTTI
+ifeq ($(LOCAL_PROTOC_OPTIMIZE_TYPE),full)
+LOCAL_STATIC_LIBRARIES += libprotobuf-cpp-2.3.0-full
+else
+LOCAL_STATIC_LIBRARIES += libprotobuf-cpp-2.3.0-lite
+endif
+endif
+
+
+###########################################################
 ## YACC: Compile .y files to .cpp and the to .o.
 ###########################################################
 
@@ -213,7 +251,7 @@
 ifneq ($(strip $(cpp_objects)),)
 $(cpp_objects): $(intermediates)/%.o: \
 		$(TOPDIR)$(LOCAL_PATH)/%$(LOCAL_CPP_EXTENSION) \
-		$(yacc_cpps) $(LOCAL_ADDITIONAL_DEPENDENCIES)
+		$(yacc_cpps) $(proto_generated_headers) $(LOCAL_ADDITIONAL_DEPENDENCIES)
 	$(transform-$(PRIVATE_HOST)cpp-to-o)
 -include $(cpp_objects:%.o=%.P)
 endif
@@ -230,7 +268,7 @@
 # TODO: support compiling certain generated files as arm.
 $(gen_cpp_objects): PRIVATE_ARM_MODE := $(normal_objects_mode)
 $(gen_cpp_objects): PRIVATE_ARM_CFLAGS := $(normal_objects_cflags)
-$(gen_cpp_objects): $(intermediates)/%.o: $(intermediates)/%$(LOCAL_CPP_EXTENSION) $(yacc_cpps) $(LOCAL_ADDITIONAL_DEPENDENCIES)
+$(gen_cpp_objects): $(intermediates)/%.o: $(intermediates)/%$(LOCAL_CPP_EXTENSION) $(yacc_cpps) $(proto_generated_headers) $(LOCAL_ADDITIONAL_DEPENDENCIES)
 	$(transform-$(PRIVATE_HOST)cpp-to-o)
 -include $(gen_cpp_objects:%.o=%.P)
 endif
@@ -277,7 +315,7 @@
 c_objects        := $(c_arm_objects) $(c_normal_objects)
 
 ifneq ($(strip $(c_objects)),)
-$(c_objects): $(intermediates)/%.o: $(TOPDIR)$(LOCAL_PATH)/%.c $(yacc_cpps) $(LOCAL_ADDITIONAL_DEPENDENCIES)
+$(c_objects): $(intermediates)/%.o: $(TOPDIR)$(LOCAL_PATH)/%.c $(yacc_cpps) $(proto_generated_headers) $(LOCAL_ADDITIONAL_DEPENDENCIES)
 	$(transform-$(PRIVATE_HOST)c-to-o)
 -include $(c_objects:%.o=%.P)
 endif
@@ -294,7 +332,7 @@
 # TODO: support compiling certain generated files as arm.
 $(gen_c_objects): PRIVATE_ARM_MODE := $(normal_objects_mode)
 $(gen_c_objects): PRIVATE_ARM_CFLAGS := $(normal_objects_cflags)
-$(gen_c_objects): $(intermediates)/%.o: $(intermediates)/%.c $(yacc_cpps) $(LOCAL_ADDITIONAL_DEPENDENCIES)
+$(gen_c_objects): $(intermediates)/%.o: $(intermediates)/%.c $(yacc_cpps) $(proto_generated_headers) $(LOCAL_ADDITIONAL_DEPENDENCIES)
 	$(transform-$(PRIVATE_HOST)c-to-o)
 -include $(gen_c_objects:%.o=%.P)
 endif
@@ -307,7 +345,7 @@
 objc_objects := $(addprefix $(intermediates)/,$(objc_sources:.m=.o))
 
 ifneq ($(strip $(objc_objects)),)
-$(objc_objects): $(intermediates)/%.o: $(TOPDIR)$(LOCAL_PATH)/%.m $(yacc_cpps) $(PRIVATE_ADDITIONAL_DEPENDENCIES)
+$(objc_objects): $(intermediates)/%.o: $(TOPDIR)$(LOCAL_PATH)/%.m $(yacc_cpps) $(proto_generated_headers) $(PRIVATE_ADDITIONAL_DEPENDENCIES)
 	$(transform-$(PRIVATE_HOST)m-to-o)
 -include $(objc_objects:%.o=%.P)
 endif
@@ -350,8 +388,10 @@
 	$(gen_asm_objects) \
 	$(c_objects) \
 	$(gen_c_objects) \
+	$(objc_objects) \
 	$(yacc_objects) \
 	$(lex_objects) \
+	$(proto_generated_objects) \
 	$(addprefix $(TOPDIR)$(LOCAL_PATH)/,$(LOCAL_PREBUILT_OBJ_FILES))
 
 LOCAL_C_INCLUDES += $(TOPDIR)$(LOCAL_PATH) $(intermediates) $(base_intermediates)
@@ -500,6 +540,7 @@
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_C_INCLUDES := $(LOCAL_C_INCLUDES)
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_LDFLAGS := $(LOCAL_LDFLAGS)
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_LDLIBS := $(LOCAL_LDLIBS)
+$(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_NO_CRT := $(LOCAL_NO_CRT)
 
 # this is really the way to get the files onto the command line instead
 # of using $^, because then LOCAL_ADDITIONAL_DEPENDENCIES doesn't work
diff --git a/core/clear_vars.mk b/core/clear_vars.mk
index 2c27300..792bd56 100644
--- a/core/clear_vars.mk
+++ b/core/clear_vars.mk
@@ -100,6 +100,9 @@
 LOCAL_MANIFEST_FILE:=
 LOCAL_BUILD_HOST_DEX:=
 LOCAL_DEX_PREOPT:=
+LOCAL_PROTOC_OPTIMIZE_TYPE:= # lite(default),micro,full
+LOCAL_PROTOC_FLAGS:=
+LOCAL_NO_CRT:=
 
 # Trim MAKEFILE_LIST so that $(call my-dir) doesn't need to
 # iterate over thousands of entries every time.
diff --git a/core/combo/HOST_linux-x86.mk b/core/combo/HOST_linux-x86.mk
index fa2dfe3..c871613 100644
--- a/core/combo/HOST_linux-x86.mk
+++ b/core/combo/HOST_linux-x86.mk
@@ -22,6 +22,26 @@
 stat --format "%s" "$(1)" | tr -d '\n'
 endef
 
+# Special case for the Linux SDK: We need to use a special cross-toolchain
+# that generates machine code that will run properly on Ubuntu 8.04 (Hardy)
+# By default, the code generated by the Lucid host toolchain will not run
+# on previous versions of the platform, due to GLibc ABI mistmatches
+# (Lucid is 2.11, Hardy is 2.7)
+#
+# Note that components that need to be built as 64-bit (e.g. clearsilver
+# which is loaded by the 64-bit JVM through JNI), will have to use
+# LOCAL_CC and LOCAL_CXX to override this.
+#
+ifeq ($(TARGET_PRODUCT),sdk)
+HOST_SDK_TOOLCHAIN_PREFIX := prebuilt/linux-x86/toolchain/i686-linux-glibc2.7-4.4.3/bin/i686-linux
+# Don't do anything if the toolchain is not there
+ifneq (,$(strip $(wildcard $(HOST_SDK_TOOLCHAIN_PREFIX)-gcc)))
+HOST_CC  := $(HOST_SDK_TOOLCHAIN_PREFIX)-gcc
+HOST_CXX := $(HOST_SDK_TOOLCHAIN_PREFIX)-g++
+HOST_AR  := $(HOST_SDK_TOOLCHAIN_PREFIX)-ar
+endif # $(HOST_SDK_TOOLCHAIN_PREFIX)-gcc exists
+endif # TARGET_PRODUCT == sdk
+
 # We build everything in 32-bit, because some host tools are
 # 32-bit-only anyway (emulator, acc), and because it gives us
 # more consistency between the host tools and the target.
diff --git a/core/combo/TARGET_linux-arm.mk b/core/combo/TARGET_linux-arm.mk
index 6139b67..f7a1756 100644
--- a/core/combo/TARGET_linux-arm.mk
+++ b/core/combo/TARGET_linux-arm.mk
@@ -234,7 +234,7 @@
 	-Wl,-shared,-Bsymbolic \
 	$(PRIVATE_TARGET_GLOBAL_LD_DIRS) \
 	$(PRIVATE_ALL_OBJECTS) \
-	$(PRIVATE_TARGET_CRTBEGIN_SO_O) \
+	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_SO_O)) \
 	-Wl,--whole-archive \
 	$(call normalize-host-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \
 	-Wl,--no-whole-archive \
@@ -245,7 +245,7 @@
 	$(PRIVATE_LDFLAGS) \
 	$(PRIVATE_TARGET_FDO_LIB) \
 	$(PRIVATE_TARGET_LIBGCC) \
-	$(PRIVATE_TARGET_CRTEND_SO_O)
+	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_SO_O))
 endef
 
 define transform-o-to-executable-inner
@@ -257,14 +257,14 @@
 	$(TARGET_GLOBAL_LD_DIRS) \
 	-Wl,-rpath-link=$(TARGET_OUT_INTERMEDIATE_LIBRARIES) \
 	$(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \
-	$(TARGET_CRTBEGIN_DYNAMIC_O) \
+	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(TARGET_CRTBEGIN_DYNAMIC_O)) \
 	$(PRIVATE_ALL_OBJECTS) \
 	$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
 	$(TARGET_GLOBAL_LDFLAGS) \
 	$(PRIVATE_LDFLAGS) \
 	$(TARGET_FDO_LIB) \
 	$(TARGET_LIBGCC) \
-	$(TARGET_CRTEND_O)
+	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(TARGET_CRTEND_O))
 endef
 
 define transform-o-to-static-executable-inner
@@ -272,12 +272,12 @@
     -Wl,--gc-sections \
 	-o $@ \
 	$(TARGET_GLOBAL_LD_DIRS) \
-	$(TARGET_CRTBEGIN_STATIC_O) \
+	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(TARGET_CRTBEGIN_STATIC_O)) \
 	$(TARGET_GLOBAL_LDFLAGS) \
 	$(PRIVATE_LDFLAGS) \
 	$(PRIVATE_ALL_OBJECTS) \
 	$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
 	$(TARGET_FDO_LIB) \
 	$(TARGET_LIBGCC) \
-	$(TARGET_CRTEND_O)
+	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(TARGET_CRTEND_O))
 endef
diff --git a/core/combo/TARGET_linux-sh.mk b/core/combo/TARGET_linux-sh.mk
index cf945fe..1fac6a0 100644
--- a/core/combo/TARGET_linux-sh.mk
+++ b/core/combo/TARGET_linux-sh.mk
@@ -105,6 +105,7 @@
 TARGET_CRTBEGIN_STATIC_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtbegin_static.o
 TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtbegin_dynamic.o
 TARGET_CRTEND_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtend_android.o
+
 TARGET_CRTBEGIN_SO_O := $(TARGET_OUT_STATIC_LIBRARIES)/sobegin.o
 TARGET_CRTEND_SO_O := $(TARGET_OUT_STATIC_LIBRARIES)/soend.o
 
@@ -119,7 +120,7 @@
 	-Wl,--gc-sections -Wl,-z,norelro \
 	-Wl,-shared,-Bsymbolic \
 	$(PRIVATE_TARGET_GLOBAL_LD_DIRS) \
-	$(PRIVATE_TARGET_CRTBEGIN_SO_O) \
+	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_SO_O)) \
 	$(PRIVATE_ALL_OBJECTS) \
 	-Wl,--whole-archive \
 	$(call normalize-host-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \
@@ -130,7 +131,7 @@
 	$(PRIVATE_LDFLAGS) \
 	$(subst -lrt,, $(subst -lpthread,,$(PRIVATE_LDLIBS))) \
 	$(PRIVATE_TARGET_LIBGCC) \
-	$(PRIVATE_TARGET_CRTEND_SO_O)
+	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_SO_O))
 endef
 
 define transform-o-to-executable-inner
@@ -142,13 +143,13 @@
 	$(TARGET_GLOBAL_LD_DIRS) \
 	-Wl,-rpath-link=$(TARGET_OUT_INTERMEDIATE_LIBRARIES) \
 	$(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \
-	$(TARGET_CRTBEGIN_DYNAMIC_O) \
+	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(TARGET_CRTBEGIN_DYNAMIC_O)) \
 	$(PRIVATE_ALL_OBJECTS) \
 	$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
 	$(PRIVATE_LDFLAGS) \
 	$(TARGET_LIBGCC) \
 	$(subst -lrt,, $(subst -lpthread,,$(PRIVATE_LDLIBS))) \
-	$(TARGET_CRTEND_O)
+	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(TARGET_CRTEND_O))
 endef
 
 define transform-o-to-static-executable-inner
@@ -156,11 +157,11 @@
 	-Wl,--gc-sections -Wl,-z,norelro \
 	-o $@ \
 	$(TARGET_GLOBAL_LD_DIRS) \
-	$(TARGET_CRTBEGIN_STATIC_O) \
+	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(TARGET_CRTBEGIN_STATIC_O)) \
 	$(PRIVATE_LDFLAGS) \
 	$(PRIVATE_ALL_OBJECTS) \
 	$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
 	$(TARGET_LIBGCC) \
 	$(subst -lrt,, $(subst -lpthread,,$(PRIVATE_LDLIBS))) \
-	$(TARGET_CRTEND_O)
+	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(TARGET_CRTEND_O))
 endef
diff --git a/core/combo/TARGET_linux-x86.mk b/core/combo/TARGET_linux-x86.mk
index 86695a4..633c202 100644
--- a/core/combo/TARGET_linux-x86.mk
+++ b/core/combo/TARGET_linux-x86.mk
@@ -107,7 +107,6 @@
 TARGET_CRTBEGIN_DYNAMIC_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtbegin_dynamic.o
 TARGET_CRTEND_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtend_android.o
 
-
 TARGET_CRTBEGIN_SO_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtbegin_so.o
 TARGET_CRTEND_SO_O := $(TARGET_OUT_STATIC_LIBRARIES)/crtend_so.o
 
@@ -123,7 +122,7 @@
 	 -shared -Bsymbolic \
 	$(TARGET_GLOBAL_CFLAGS) \
 	$(PRIVATE_TARGET_GLOBAL_LD_DIRS) \
-	$(PRIVATE_TARGET_CRTBEGIN_SO_O) \
+	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTBEGIN_SO_O)) \
 	$(PRIVATE_ALL_OBJECTS) \
 	-Wl,--whole-archive \
 	$(call normalize-host-libraries,$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES)) \
@@ -133,7 +132,7 @@
 	-o $@ \
 	$(PRIVATE_LDFLAGS) \
 	$(PRIVATE_TARGET_LIBGCC) \
-	$(PRIVATE_TARGET_CRTEND_SO_O)
+	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(PRIVATE_TARGET_CRTEND_SO_O))
 endef
 
 
@@ -147,12 +146,12 @@
 	$(TARGET_GLOBAL_LD_DIRS) \
 	-Wl,-rpath-link=$(TARGET_OUT_INTERMEDIATE_LIBRARIES) \
 	$(call normalize-target-libraries,$(PRIVATE_ALL_SHARED_LIBRARIES)) \
-	$(TARGET_CRTBEGIN_DYNAMIC_O) \
+	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(TARGET_CRTBEGIN_DYNAMIC_O)) \
 	$(PRIVATE_ALL_OBJECTS) \
 	$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
 	$(PRIVATE_LDFLAGS) \
 	$(TARGET_LIBGCC) \
-	$(TARGET_CRTEND_O)
+	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(TARGET_CRTEND_O))
 endef
 
 define transform-o-to-static-executable-inner
@@ -161,14 +160,14 @@
 	-nostdlib -Bstatic \
 	-o $@ \
 	$(TARGET_GLOBAL_LD_DIRS) \
-	$(TARGET_CRTBEGIN_STATIC_O) \
+	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(TARGET_CRTBEGIN_STATIC_O)) \
 	$(PRIVATE_LDFLAGS) \
 	$(PRIVATE_ALL_OBJECTS) \
 	-Wl,--start-group \
 	$(call normalize-target-libraries,$(PRIVATE_ALL_STATIC_LIBRARIES)) \
 	$(TARGET_LIBGCC) \
 	-Wl,--end-group \
-	$(TARGET_CRTEND_O)
+	$(if $(filter true,$(PRIVATE_NO_CRT)),,$(TARGET_CRTEND_O))
 endef
 
 endif #simulator
diff --git a/core/config.mk b/core/config.mk
index 1282ad6..9b588cf 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -200,6 +200,7 @@
 DOXYGEN:= doxygen
 AAPT := $(HOST_OUT_EXECUTABLES)/aapt$(HOST_EXECUTABLE_SUFFIX)
 AIDL := $(HOST_OUT_EXECUTABLES)/aidl$(HOST_EXECUTABLE_SUFFIX)
+PROTOC := $(HOST_OUT_EXECUTABLES)/aprotoc$(HOST_EXECUTABLE_SUFFIX)
 ICUDATA := $(HOST_OUT_EXECUTABLES)/icudata$(HOST_EXECUTABLE_SUFFIX)
 SIGNAPK_JAR := $(HOST_OUT_JAVA_LIBRARIES)/signapk$(COMMON_JAVA_PACKAGE_SUFFIX)
 MKBOOTFS := $(HOST_OUT_EXECUTABLES)/mkbootfs$(HOST_EXECUTABLE_SUFFIX)
diff --git a/core/definitions.mk b/core/definitions.mk
index c762711..975b6b5 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -236,6 +236,19 @@
 endef
 
 ###########################################################
+## Find all of the .proto files under the named directories.
+## Meant to be used like:
+##    SRC_FILES := $(call all-proto-files-under,src)
+###########################################################
+
+define all-proto-files-under
+$(patsubst ./%,%, \
+  $(shell cd $(LOCAL_PATH) ; \
+          find $(1) -name "*.proto" -and -not -name ".*") \
+  )
+endef
+
+###########################################################
 ## Find all of the html files under the named directories.
 ## Meant to be used like:
 ##    SRC_FILES := $(call all-html-files-under,src tests)
@@ -666,6 +679,7 @@
 @echo PRIVATE_ALL_STATIC_LIBRARIES=$(PRIVATE_ALL_STATIC_LIBRARIES);
 @echo PRIVATE_ALL_WHOLE_STATIC_LIBRARIES=$(PRIVATE_ALL_WHOLE_STATIC_LIBRARIES);
 @echo PRIVATE_ALL_OBJECTS=$(PRIVATE_ALL_OBJECTS);
+@echo PRIVATE_NO_CRT=$(PRIVATE_NO_CRT);
 endef
 
 ###########################################################
@@ -746,6 +760,36 @@
 
 
 ###########################################################
+## Commands for running protoc to compile .proto into .java
+###########################################################
+
+define transform-proto-to-java
+@mkdir -p $(dir $@)
+@echo "Protoc: $@ <= $(PRIVATE_PROTO_SRC_FILES)"
+@rm -rf $(PRIVATE_PROTO_JAVA_OUTPUT_DIR)
+@mkdir -p $(PRIVATE_PROTO_JAVA_OUTPUT_DIR)
+$(hide) $(PROTOC) \
+	$(addprefix --proto_path=, $(PRIVATE_PROTO_INCLUDES)) \
+	$(PRIVATE_PROTO_JAVA_OUTPUT_OPTION)=$(PRIVATE_PROTO_JAVA_OUTPUT_DIR) \
+	$(PRIVATE_PROTOC_FLAGS) \
+	$(PRIVATE_PROTO_SRC_FILES)
+$(hide) touch $@
+endef
+
+######################################################################
+## Commands for running protoc to compile .proto into .pb.cc and .pb.h
+######################################################################
+define transform-proto-to-cc
+@mkdir -p $(dir $@)
+@echo "Protoc: $@ <= $<"
+$(hide) $(PROTOC) \
+	$(addprefix --proto_path=, $(PRIVATE_PROTO_INCLUDES)) \
+	$(PRIVATE_PROTOC_FLAGS) \
+	--cpp_out=$(PRIVATE_PROTO_CC_OUTPUT_DIR) $<
+endef
+
+
+###########################################################
 ## Commands for running gcc to compile a C++ file
 ###########################################################
 
@@ -927,7 +971,7 @@
 $(call transform-host-c-or-s-to-o-no-deps)
 endef
 
-define tranform-host-m-to-o
+define transform-host-m-to-o
 $(transform-host-m-to-o-no-deps)
 $(transform-d-to-p)
 endef
@@ -1001,7 +1045,7 @@
 # it to be overriden en-masse see combo/linux-arm.make for an example.
 ifneq ($(HOST_CUSTOM_LD_COMMAND),true)
 define transform-host-o-to-shared-lib-inner
-$(HOST_CXX) \
+$(PRIVATE_CXX) \
 	-Wl,-rpath-link=$(TARGET_OUT_INTERMEDIATE_LIBRARIES) \
 	-Wl,-rpath,\$$ORIGIN/../lib \
 	-shared -Wl,-soname,$(notdir $@) \
@@ -1051,7 +1095,7 @@
 # it to be overriden en-masse see combo/linux-arm.make for an example.
 ifneq ($(TARGET_CUSTOM_LD_COMMAND),true)
 define transform-o-to-shared-lib-inner
-$(TARGET_CXX) \
+$(PRIVATE_CXX) \
 	$(PRIVATE_TARGET_GLOBAL_LDFLAGS) \
 	-Wl,-rpath-link=$(TARGET_OUT_INTERMEDIATE_LIBRARIES) \
 	-Wl,-rpath,\$$ORIGIN/../lib \
@@ -1110,7 +1154,7 @@
 
 ifneq ($(TARGET_CUSTOM_LD_COMMAND),true)
 define transform-o-to-executable-inner
-$(TARGET_CXX) \
+$(PRIVATE_CXX) \
 	$(TARGET_GLOBAL_LDFLAGS) \
 	-Wl,-rpath-link=$(TARGET_OUT_INTERMEDIATE_LIBRARIES) \
 	$(TARGET_GLOBAL_LD_DIRS) \
@@ -1161,7 +1205,7 @@
 
 ifneq ($(HOST_CUSTOM_LD_COMMAND),true)
 define transform-host-o-to-executable-inner
-$(HOST_CXX) \
+$(PRIVATE_CXX) \
 	-Wl,-rpath-link=$(TARGET_OUT_INTERMEDIATE_LIBRARIES) \
 	-Wl,-rpath,\$$ORIGIN/../lib \
 	$(HOST_GLOBAL_LD_DIRS) \
diff --git a/core/dynamic_binary.mk b/core/dynamic_binary.mk
index 0fa7647..005ccf3 100644
--- a/core/dynamic_binary.mk
+++ b/core/dynamic_binary.mk
@@ -94,7 +94,7 @@
 # The output of the prelink step is the binary we want to use
 # for symbolic debugging;  the prelink step may move sections
 # around, so we have to use this version.
-prelink_output := $(LOCAL_UNSTRIPPED_PATH)/$(LOCAL_MODULE_SUBDIR)$(LOCAL_BUILT_MODULE_STEM)
+prelink_output := $(LOCAL_UNSTRIPPED_PATH)/$(LOCAL_BUILT_MODULE_STEM)
 
 # Skip prelinker if it is FDO instrumentation build.
 ifneq ($(strip $(BUILD_FDO_INSTRUMENT)),)
diff --git a/core/java.mk b/core/java.mk
index 6b8d04d..35b0343 100644
--- a/core/java.mk
+++ b/core/java.mk
@@ -32,6 +32,16 @@
     LOCAL_JAVA_LIBRARIES := core core-junit ext framework $(LOCAL_JAVA_LIBRARIES)
   endif
 endif
+
+proto_sources := $(filter %.proto,$(LOCAL_SRC_FILES))
+ifneq ($(proto_sources),)
+ifeq ($(LOCAL_PROTOC_OPTIMIZE_TYPE),micro)
+    LOCAL_STATIC_JAVA_LIBRARIES += libprotobuf-java-2.3.0-micro
+else
+    LOCAL_STATIC_JAVA_LIBRARIES += libprotobuf-java-2.3.0-lite
+endif
+endif
+
 LOCAL_JAVA_LIBRARIES := $(sort $(LOCAL_JAVA_LIBRARIES))
 
 LOCAL_BUILT_MODULE_STEM := $(strip $(LOCAL_BUILT_MODULE_STEM))
@@ -167,7 +177,8 @@
 # Deps for generated source files must be handled separately,
 # via deps on the target that generates the sources.
 $(full_classes_compiled_jar): PRIVATE_JAVACFLAGS := $(LOCAL_JAVACFLAGS)
-$(full_classes_compiled_jar): $(java_sources) $(java_resource_sources) $(full_java_lib_deps) $(jar_manifest_file)
+$(full_classes_compiled_jar): $(java_sources) $(java_resource_sources) $(full_java_lib_deps) $(jar_manifest_file) \
+	$(RenderScript_file_stamp) $(proto_java_sources_file_stamp)
 	$(transform-java-to-classes.jar)
 
 # All of the rules after full_classes_compiled_jar are very unlikely
diff --git a/core/main.mk b/core/main.mk
index a6768c4..0a7d3bf 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -419,6 +419,7 @@
 	sdk/archquery \
 	sdk/androidprefs \
 	sdk/apkbuilder \
+	sdk/common \
 	sdk/ddms \
 	sdk/hierarchyviewer2 \
 	sdk/ide_common \
diff --git a/core/tasks/cts.mk b/core/tasks/cts.mk
index e27c43c..8c36ef6 100644
--- a/core/tasks/cts.mk
+++ b/core/tasks/cts.mk
@@ -69,13 +69,14 @@
 # $1 : The output file where the description should be written (without the '.xml' extension)
 # $2 : The AndroidManifest.xml corresponding to the test package
 # $3 : The name of the TestSuite generator class to use
-# $4 : The Android.mk corresponding to the test package (required for host-side tests only)
+# $4 : The directory containing vogar expectations files
+# $5 : The Android.mk corresponding to the test package (required for host-side tests only)
 define generate-core-test-description
 @echo "Generate core-test description ("$(notdir $(1))")"
 $(hide) java $(PRIVATE_JAVAOPTS) \
 	-classpath $(PRIVATE_CLASSPATH) \
 	$(PRIVATE_PARAMS) CollectAllTests $(1) \
-	$(2) $(3) $(4)
+	$(2) $(3) $(4) $(5)
 endef
 
 CORE_INTERMEDIATES :=$(call intermediates-dir-for,JAVA_LIBRARIES,core,,COMMON)
@@ -99,22 +100,22 @@
 $(cts_dir)/all_cts_core_files_stamp: $(CTS_CORE_CASE_LIST) $(HOST_OUT_JAVA_LIBRARIES)/descGen.jar $(CORE_INTERMEDIATES)/javalib.jar $(JUNIT_INTERMEDIATES)/javalib.jar $(RUNNER_INTERMEDIATES)/javalib.jar $(SUPPORT_INTERMEDIATES)/javalib.jar $(DOM_INTERMEDIATES)/javalib.jar $(XML_INTERMEDIATES)/javalib.jar $(TESTS_INTERMEDIATES)/javalib.jar $(cts_dir)/all_cts_files_stamp | $(ACP)
 	$(call generate-core-test-description,$(cts_dir)/$(cts_name)/repository/testcases/android.core.tests.dom,\
 		cts/tests/core/dom/AndroidManifest.xml,\
-		tests.dom.AllTests)
+		tests.dom.AllTests, libcore/expectations)
 	$(call generate-core-test-description,$(cts_dir)/$(cts_name)/repository/testcases/android.core.tests.luni.io,\
 		cts/tests/core/luni-io/AndroidManifest.xml,\
-		tests.luni.AllTestsIo)
+		tests.luni.AllTestsIo, libcore/expectations)
 	$(call generate-core-test-description,$(cts_dir)/$(cts_name)/repository/testcases/android.core.tests.luni.lang,\
 		cts/tests/core/luni-lang/AndroidManifest.xml,\
-		tests.luni.AllTestsLang)
+		tests.luni.AllTestsLang, libcore/expectations)
 	$(call generate-core-test-description,$(cts_dir)/$(cts_name)/repository/testcases/android.core.tests.luni.net,\
 		cts/tests/core/luni-net/AndroidManifest.xml,\
-		tests.luni.AllTestsNet)
+		tests.luni.AllTestsNet, libcore/expectations)
 	$(call generate-core-test-description,$(cts_dir)/$(cts_name)/repository/testcases/android.core.tests.luni.util,\
 		cts/tests/core/luni-util/AndroidManifest.xml,\
-		tests.luni.AllTestsUtil)
+		tests.luni.AllTestsUtil, libcore/expectations)
 	$(call generate-core-test-description,$(cts_dir)/$(cts_name)/repository/testcases/android.core.tests.xml,\
 		cts/tests/core/xml/AndroidManifest.xml,\
-		tests.xml.AllTests)
+		tests.xml.AllTests, libcore/expectations)
 	$(hide) touch $@
 
 
@@ -139,7 +140,7 @@
 $(CORE_VM_TEST_DESC): vm-tests $(HOST_OUT_JAVA_LIBRARIES)/descGen.jar $(CORE_INTERMEDIATES)/javalib.jar $(JUNIT_INTERMEDIATES)/javalib.jar $(RUNNER_INTERMEDIATES)/javalib.jar $(VMTESTS_INTERMEDIATES)/android.core.vm-tests.jar $(TESTS_INTERMEDIATES)/javalib.jar  $(HOSTTESTLIB_JAR) $(DDMLIB_JAR) $(cts_dir)/all_cts_files_stamp | $(ACP)
 	$(call generate-core-test-description,$(CORE_VM_TEST_DESC),\
 		cts/tests/vm-tests/AndroidManifest.xml,\
-		dot.junit.AllJunitHostTests, cts/tools/vm-tests/Android.mk)
+		dot.junit.AllJunitHostTests, libcore/expectations, cts/tools/vm-tests/Android.mk)
 	$(ACP) -fv $(VMTESTS_INTERMEDIATES)/android.core.vm-tests.jar $(PRIVATE_DIR)/repository/testcases/android.core.vm-tests.jar
 
 # Move app security host-side tests to the repository
diff --git a/core/user_tags.mk b/core/user_tags.mk
index 7800710..3eade8a 100644
--- a/core/user_tags.mk
+++ b/core/user_tags.mk
@@ -53,6 +53,8 @@
 	asm-3.1 \
 	atree \
 	audio \
+	badblocks \
+	badblocks_host \
 	bb2sym \
 	bb_dump \
 	bbprof \
@@ -100,6 +102,8 @@
 	dumpstate \
 	dumpsys \
 	dx-tests \
+	e2fsck \
+	e2fsck_host \
 	easymock \
 	edify \
 	emmalib \
@@ -196,6 +200,7 @@
 	libcameraservice \
 	libcamerastub \
 	libc_common \
+	libchromium_net \
 	libc_nomalloc \
 	libctest \
 	libcutils \
@@ -219,6 +224,18 @@
 	libETC1 \
 	libexif \
 	libext \
+	libext2fs \
+	libext2fs_host \
+	libext2_blkid \
+	libext2_blkid_host \
+	libext2_com_err \
+	libext2_com_err_host \
+	libext2_e2p \
+	libext2_e2p_host \
+	libext2_profile \
+	libext2_profile_host \
+	libext2_uuid \
+	libext2_uuid_host \
 	libfdlibm \
 	libfdlibm-host \
 	libFFTEm \
@@ -229,11 +246,13 @@
 	libGLES_android \
 	libGLESv1_CM \
 	libGLESv2 \
+	libglib \
 	libglib_static \
 	libgui \
 	libhardware \
 	libhardware_legacy \
 	libhost \
+	libhyphenation \
 	libiprouteutil \
 	libiptc \
 	libjnigraphics \
@@ -355,6 +374,7 @@
 	libwpa_client \
 	libwrapsim \
 	libxml2 \
+	libxslt \
 	libzipfile \
 	lights.kraken \
 	lights.qsd8k \
@@ -375,6 +395,8 @@
 	minigzip \
 	mkbootfs \
 	mkbootimg \
+	mke2fs \
+	mke2fs_host \
 	mksdcard \
 	mksnapshot \
 	mkstubs \
@@ -387,6 +409,7 @@
 	ndc \
 	netcfg \
 	netd \
+	network \
 	ninepatch \
 	oauth \
 	obbtool \
@@ -417,6 +440,8 @@
 	read_method \
 	read_pid \
 	read_trace \
+	resize2fs \
+	resize2fs_host \
 	rgb2565 \
 	rild \
 	rsg-generator \
@@ -466,6 +491,8 @@
 	test_zipfile \
 	toolbox \
 	traceview \
+	tune2fs \
+	tune2fs_host \
 	tuttle2.kcm \
 	uix \
 	usbtest \
diff --git a/target/board/generic_x86/init.rc b/target/board/generic_x86/init.rc
index 38edcc1..8f6be28 100644
--- a/target/board/generic_x86/init.rc
+++ b/target/board/generic_x86/init.rc
@@ -324,6 +324,7 @@
 
 service netd /system/bin/netd
     socket netd stream 0660 root system
+    socket dnsproxyd stream 0660 root inet
 
 service debuggerd /system/bin/debuggerd