diff --git a/core/Makefile b/core/Makefile
index dca4200..e90b3ac 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -222,10 +222,22 @@
 
 BUILDINFO_SH := build/make/tools/buildinfo.sh
 BUILDINFO_COMMON_SH := build/make/tools/buildinfo_common.sh
-# Generates a set of common build system properties to a file.
+
+# Generates a set of sysprops common to all partitions to a file.
 # $(1): Partition name
 # $(2): Output file name
 define generate-common-build-props
+	PRODUCT_BRAND="$(PRODUCT_BRAND)" \
+	PRODUCT_DEVICE="$(TARGET_DEVICE)" \
+	PRODUCT_MANUFACTURER="$(PRODUCT_MANUFACTURER)" \
+	PRODUCT_MODEL="$(PRODUCT_MODEL)" \
+	PRODUCT_NAME="$(TARGET_PRODUCT)" \
+	$(call generate-common-build-props-with-product-vars-set,$(1),$(2))
+endef
+
+# Like the above macro, but requiring the relevant PRODUCT_ environment
+# variables to be set when called.
+define generate-common-build-props-with-product-vars-set
 	BUILD_FINGERPRINT="$(BUILD_FINGERPRINT_FROM_FILE)" \
 	BUILD_ID="$(BUILD_ID)" \
 	BUILD_NUMBER="$(BUILD_NUMBER_FROM_FILE)" \
@@ -233,11 +245,6 @@
 	DATE="$(DATE_FROM_FILE)" \
 	PLATFORM_SDK_VERSION="$(PLATFORM_SDK_VERSION)" \
 	PLATFORM_VERSION="$(PLATFORM_VERSION)" \
-	PRODUCT_BRAND="$(PRODUCT_BRAND)" \
-	PRODUCT_DEVICE="$(TARGET_DEVICE)" \
-	PRODUCT_MANUFACTURER="$(PRODUCT_MANUFACTURER)" \
-	PRODUCT_MODEL="$(PRODUCT_MODEL)" \
-	PRODUCT_NAME="$(TARGET_PRODUCT)" \
 	TARGET_BUILD_TYPE="$(TARGET_BUILD_VARIANT)" \
 	bash $(BUILDINFO_COMMON_SH) "$(1)" >> $(2)
 endef
@@ -426,7 +433,12 @@
 	$(hide) $(foreach prop,$(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_OEM_PROPERTIES), \
 	    echo "import /oem/oem.prop $(prop)" >> $@;)
 endif
-	$(hide) $(call generate-common-build-props,system,$@)
+	$(hide) PRODUCT_BRAND="$(PRODUCT_SYSTEM_BRAND)" \
+	        PRODUCT_MANUFACTURER="$(PRODUCT_SYSTEM_MANUFACTURER)" \
+	        PRODUCT_MODEL="$(PRODUCT_SYSTEM_MODEL)" \
+	        PRODUCT_NAME="$(PRODUCT_SYSTEM_NAME)" \
+	        PRODUCT_DEVICE="$(PRODUCT_SYSTEM_DEVICE)" \
+	        $(call generate-common-build-props-with-product-vars-set,system,$@)
 	$(hide) TARGET_BUILD_TYPE="$(TARGET_BUILD_VARIANT)" \
 	        TARGET_BUILD_FLAVOR="$(TARGET_BUILD_FLAVOR)" \
 	        TARGET_DEVICE="$(TARGET_DEVICE)" \
diff --git a/core/product.mk b/core/product.mk
index a367a6b..bb63ab8 100644
--- a/core/product.mk
+++ b/core/product.mk
@@ -126,6 +126,11 @@
     PRODUCT_DEVICE \
     PRODUCT_MANUFACTURER \
     PRODUCT_BRAND \
+    PRODUCT_SYSTEM_NAME \
+    PRODUCT_SYSTEM_MODEL \
+    PRODUCT_SYSTEM_DEVICE \
+    PRODUCT_SYSTEM_BRAND \
+    PRODUCT_SYSTEM_MANUFACTURER \
     PRODUCT_PROPERTY_OVERRIDES \
     PRODUCT_DEFAULT_PROPERTY_OVERRIDES \
     PRODUCT_PRODUCT_PROPERTIES \
diff --git a/core/product_config.mk b/core/product_config.mk
index cff42db..7ab1d6d 100644
--- a/core/product_config.mk
+++ b/core/product_config.mk
@@ -299,18 +299,39 @@
 PRODUCT_AAPT_CONFIG := \
     $(subst $(space),$(comma),$(strip $(PRODUCT_AAPT_CONFIG)))
 
+PRODUCT_SYSTEM_NAME := $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_SYSTEM_NAME))
+ifndef PRODUCT_SYSTEM_NAME
+  PRODUCT_SYSTEM_NAME := $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_NAME))
+endif
+
+PRODUCT_SYSTEM_DEVICE := $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_SYSTEM_DEVICE))
+ifndef PRODUCT_SYSTEM_DEVICE
+  PRODUCT_SYSTEM_DEVICE := $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_DEVICE)
+endif
+
 PRODUCT_BRAND := $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_BRAND))
+PRODUCT_SYSTEM_BRAND := $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_SYSTEM_BRAND))
+ifndef PRODUCT_SYSTEM_BRAND
+  PRODUCT_SYSTEM_BRAND := $(PRODUCT_BRAND)
+endif
 
 PRODUCT_MODEL := $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_MODEL))
 ifndef PRODUCT_MODEL
   PRODUCT_MODEL := $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_NAME))
 endif
+PRODUCT_SYSTEM_MODEL := $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_SYSTEM_MODEL))
+ifndef PRODUCT_SYSTEM_MODEL
+  PRODUCT_SYSTEM_MODEL := $(PRODUCT_MODEL)
+endif
 
-PRODUCT_MANUFACTURER := \
-    $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_MANUFACTURER))
+PRODUCT_MANUFACTURER := $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_MANUFACTURER))
 ifndef PRODUCT_MANUFACTURER
   PRODUCT_MANUFACTURER := unknown
 endif
+PRODUCT_SYSTEM_MANUFACTURER := $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_SYSTEM_MANUFACTURER))
+ifndef PRODUCT_SYSTEM_MANUFACTURER
+  PRODUCT_SYSTEM_MANUFACTURER := $(PRODUCT_MANUFACTURER)
+endif
 
 ifeq ($(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_CHARACTERISTICS),)
   TARGET_AAPT_CHARACTERISTICS := default