emulator: support system-as-root

BUG: 69770927

Test: build sdk_gphone_x86-userdebug, boot up
to home with Tot emulator

Test: build sdk_phone_armv7-userdebug, boot up
to home with Tot emulator

Change-Id: I39348bf35cb748c08ed68a048389bbfc2279a91c
Merged-In: I39348bf35cb748c08ed68a048389bbfc2279a91c

target/board/generic/BoardConfig.mk

@@ -57,11 +57,13 @@ TARGET_COPY_OUT_VENDOR := vendor
 # when finalizing them.
 BOARD_VENDORIMAGE_PARTITION_SIZE := 100000000
 BOARD_VENDORIMAGE_FILE_SYSTEM_TYPE := ext4
-BOARD_CACHEIMAGE_PARTITION_SIZE := 69206016
-BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE := ext4
 BOARD_FLASH_BLOCK_SIZE := 512
 TARGET_USERIMAGES_SPARSE_EXT_DISABLED := true
 DEVICE_MATRIX_FILE   := device/generic/goldfish/compatibility_matrix.xml
 
 BOARD_SEPOLICY_DIRS += build/target/board/generic/sepolicy
 BOARD_PROPERTY_OVERRIDES_SPLIT_ENABLED := true
+
+# Enable A/B update
+TARGET_NO_RECOVERY := true
+BOARD_BUILD_SYSTEM_ROOT_IMAGE := true

target/board/generic_arm64/BoardConfig.mk

@@ -88,11 +88,13 @@ TARGET_COPY_OUT_VENDOR := vendor
 # when finalizing them.
 BOARD_VENDORIMAGE_PARTITION_SIZE := 100000000
 BOARD_VENDORIMAGE_FILE_SYSTEM_TYPE := ext4
-BOARD_CACHEIMAGE_PARTITION_SIZE := 69206016
-BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE := ext4
 BOARD_FLASH_BLOCK_SIZE := 512
 TARGET_USERIMAGES_SPARSE_EXT_DISABLED := true
 DEVICE_MATRIX_FILE   := device/generic/goldfish/compatibility_matrix.xml
 
 BOARD_PROPERTY_OVERRIDES_SPLIT_ENABLED := true
 BOARD_SEPOLICY_DIRS += build/target/board/generic/sepolicy
+
+# Enable A/B update
+TARGET_NO_RECOVERY := true
+BOARD_BUILD_SYSTEM_ROOT_IMAGE := true

target/board/generic_mips/BoardConfig.mk

@@ -65,10 +65,12 @@ TARGET_COPY_OUT_VENDOR := vendor
 # when finalizing them.
 BOARD_VENDORIMAGE_PARTITION_SIZE := 100000000
 BOARD_VENDORIMAGE_FILE_SYSTEM_TYPE := ext4
-BOARD_CACHEIMAGE_PARTITION_SIZE := 69206016
-BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE := ext4
 BOARD_FLASH_BLOCK_SIZE := 512
 TARGET_USERIMAGES_SPARSE_EXT_DISABLED := true
 DEVICE_MATRIX_FILE   := device/generic/goldfish/compatibility_matrix.xml
 
 BOARD_SEPOLICY_DIRS += build/target/board/generic/sepolicy
+
+# Enable A/B update
+TARGET_NO_RECOVERY := true
+BOARD_BUILD_SYSTEM_ROOT_IMAGE := true

target/board/generic_mips64/BoardConfig.mk

@@ -80,8 +80,6 @@ TARGET_COPY_OUT_VENDOR := vendor
 # when finalizing them.
 BOARD_VENDORIMAGE_PARTITION_SIZE := 100000000
 BOARD_VENDORIMAGE_FILE_SYSTEM_TYPE := ext4
-BOARD_CACHEIMAGE_PARTITION_SIZE := 69206016
-BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE := ext4
 BOARD_FLASH_BLOCK_SIZE := 512
 TARGET_USERIMAGES_SPARSE_EXT_DISABLED := true
 DEVICE_MATRIX_FILE   := device/generic/goldfish/compatibility_matrix.xml
@@ -89,3 +87,7 @@ DEVICE_MATRIX_FILE   := device/generic/goldfish/compatibility_matrix.xml
 BOARD_SEPOLICY_DIRS += build/target/board/generic/sepolicy
 
 DEX_PREOPT_DEFAULT := nostripping
+
+# Enable A/B update
+TARGET_NO_RECOVERY := true
+BOARD_BUILD_SYSTEM_ROOT_IMAGE := true

target/board/generic_x86/BoardConfig.mk

@@ -48,8 +48,6 @@ BOARD_PROPERTY_OVERRIDES_SPLIT_ENABLED := true
 # when finalizing them.
 BOARD_VENDORIMAGE_PARTITION_SIZE := 100000000
 BOARD_VENDORIMAGE_FILE_SYSTEM_TYPE := ext4
-BOARD_CACHEIMAGE_PARTITION_SIZE := 69206016
-BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE := ext4
 BOARD_FLASH_BLOCK_SIZE := 512
 TARGET_USERIMAGES_SPARSE_EXT_DISABLED := true
 DEVICE_MATRIX_FILE   := device/generic/goldfish/compatibility_matrix.xml
@@ -57,3 +55,7 @@ DEVICE_MATRIX_FILE   := device/generic/goldfish/compatibility_matrix.xml
 BOARD_SEPOLICY_DIRS += \
         build/target/board/generic/sepolicy \
         build/target/board/generic_x86/sepolicy
+
+# Enable A/B update
+TARGET_NO_RECOVERY := true
+BOARD_BUILD_SYSTEM_ROOT_IMAGE := true

target/board/generic_x86_64/BoardConfig.mk

@@ -50,8 +50,6 @@ TARGET_COPY_OUT_VENDOR := vendor
 # when finalizing them.
 BOARD_VENDORIMAGE_PARTITION_SIZE := 100000000
 BOARD_VENDORIMAGE_FILE_SYSTEM_TYPE := ext4
-BOARD_CACHEIMAGE_PARTITION_SIZE := 69206016
-BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE := ext4
 BOARD_FLASH_BLOCK_SIZE := 512
 TARGET_USERIMAGES_SPARSE_EXT_DISABLED := true
 BOARD_PROPERTY_OVERRIDES_SPLIT_ENABLED := true
@@ -60,3 +58,7 @@ DEVICE_MATRIX_FILE   := device/generic/goldfish/compatibility_matrix.xml
 BOARD_SEPOLICY_DIRS += \
         build/target/board/generic/sepolicy \
         build/target/board/generic_x86/sepolicy
+
+# Enable A/B update
+TARGET_NO_RECOVERY := true
+BOARD_BUILD_SYSTEM_ROOT_IMAGE := true