Mark many single value variables as such

# Variables that are lists of values.

_product_list_vars :=

_product_list_vars += PRODUCT_NAME

_product_list_vars += PRODUCT_MODEL

_product_single_value_vars += PRODUCT_NAME

_product_single_value_vars += PRODUCT_MODEL

# The resoure configuration options to use for this product.

_product_list_vars += PRODUCT_LOCALES

_product_list_vars += PRODUCT_PACKAGES_TESTS

# The device that this product maps to.

_product_list_vars += PRODUCT_DEVICE

_product_list_vars += PRODUCT_MANUFACTURER

_product_list_vars += PRODUCT_BRAND

_product_single_value_vars += PRODUCT_DEVICE

_product_single_value_vars += PRODUCT_MANUFACTURER

_product_single_value_vars += PRODUCT_BRAND

# These PRODUCT_SYSTEM_* flags, if defined, are used in place of the

# corresponding PRODUCT_* flags for the sysprops on /system.

_product_list_vars += \

_product_single_value_vars += \

    PRODUCT_SYSTEM_NAME \

    PRODUCT_SYSTEM_MODEL \

    PRODUCT_SYSTEM_DEVICE \

_product_list_vars += PRODUCT_ALWAYS_PREOPT_EXTRACTED_APK

_product_list_vars += PRODUCT_DEXPREOPT_SPEED_APPS

_product_list_vars += PRODUCT_LOADED_BY_PRIVILEGED_MODULES

_product_list_vars += PRODUCT_VBOOT_SIGNING_KEY

_product_list_vars += PRODUCT_VBOOT_SIGNING_SUBKEY

_product_list_vars += PRODUCT_VERITY_SIGNING_KEY

_product_list_vars += PRODUCT_SYSTEM_VERITY_PARTITION

_product_list_vars += PRODUCT_VENDOR_VERITY_PARTITION

_product_list_vars += PRODUCT_PRODUCT_VERITY_PARTITION

_product_list_vars += PRODUCT_PRODUCT_SERVICES_VERITY_PARTITION

_product_list_vars += PRODUCT_ODM_VERITY_PARTITION

_product_list_vars += PRODUCT_SYSTEM_SERVER_DEBUG_INFO

_product_list_vars += PRODUCT_OTHER_JAVA_DEBUG_INFO

_product_single_value_vars += PRODUCT_VBOOT_SIGNING_KEY

_product_single_value_vars += PRODUCT_VBOOT_SIGNING_SUBKEY

_product_single_value_vars += PRODUCT_VERITY_SIGNING_KEY

_product_single_value_vars += PRODUCT_SYSTEM_VERITY_PARTITION

_product_single_value_vars += PRODUCT_VENDOR_VERITY_PARTITION

_product_single_value_vars += PRODUCT_PRODUCT_VERITY_PARTITION

_product_single_value_vars += PRODUCT_PRODUCT_SERVICES_VERITY_PARTITION

_product_single_value_vars += PRODUCT_ODM_VERITY_PARTITION

_product_single_value_vars += PRODUCT_SYSTEM_SERVER_DEBUG_INFO

_product_single_value_vars += PRODUCT_OTHER_JAVA_DEBUG_INFO

# Per-module dex-preopt configs.

_product_list_vars += PRODUCT_DEX_PREOPT_MODULE_CONFIGS

_product_list_vars += PRODUCT_DEX_PREOPT_RESOLVE_STARTUP_STRINGS

# Boot image options.

_product_list_vars += \

_product_single_value_vars += \

    PRODUCT_USE_PROFILE_FOR_BOOT_IMAGE \

    PRODUCT_DEX_PREOPT_BOOT_IMAGE_PROFILE_LOCATION \

    PRODUCT_USES_DEFAULT_ART_CONFIG \

_product_list_vars += PRODUCT_SYSTEM_SERVER_COMPILER_FILTER

# Per-module sanitizer configs

_product_list_vars += PRODUCT_SANITIZER_MODULE_CONFIGS

_product_list_vars += PRODUCT_SYSTEM_BASE_FS_PATH

_product_list_vars += PRODUCT_VENDOR_BASE_FS_PATH

_product_list_vars += PRODUCT_PRODUCT_BASE_FS_PATH

_product_list_vars += PRODUCT_PRODUCT_SERVICES_BASE_FS_PATH

_product_list_vars += PRODUCT_ODM_BASE_FS_PATH

_product_list_vars += PRODUCT_SHIPPING_API_LEVEL

_product_single_value_vars += PRODUCT_SYSTEM_BASE_FS_PATH

_product_single_value_vars += PRODUCT_VENDOR_BASE_FS_PATH

_product_single_value_vars += PRODUCT_PRODUCT_BASE_FS_PATH

_product_single_value_vars += PRODUCT_PRODUCT_SERVICES_BASE_FS_PATH

_product_single_value_vars += PRODUCT_ODM_BASE_FS_PATH

# The first API level this product shipped with

_product_single_value_vars += PRODUCT_SHIPPING_API_LEVEL

_product_list_vars += VENDOR_PRODUCT_RESTRICT_VENDOR_FILES

_product_list_vars += VENDOR_EXCEPTION_MODULES

_product_list_vars += VENDOR_EXCEPTION_PATHS

# Whether the product wants to ship libartd. For rules and meaning, see art/Android.mk.

_product_list_vars += PRODUCT_ART_TARGET_INCLUDE_DEBUG_BUILD

_product_single_value_vars += PRODUCT_ART_TARGET_INCLUDE_DEBUG_BUILD

# Make this art variable visible to soong_config.mk.

_product_list_vars += PRODUCT_ART_USE_READ_BARRIER

_product_single_value_vars += PRODUCT_ART_USE_READ_BARRIER

# Whether the product is an Android Things variant.

_product_list_vars += PRODUCT_IOT

_product_single_value_vars += PRODUCT_IOT

# Add reserved headroom to a system image.

_product_list_vars += PRODUCT_SYSTEM_HEADROOM

_product_single_value_vars += PRODUCT_SYSTEM_HEADROOM

# Whether to save disk space by minimizing java debug info

_product_list_vars += PRODUCT_MINIMIZE_JAVA_DEBUG_INFO

_product_single_value_vars += PRODUCT_MINIMIZE_JAVA_DEBUG_INFO

# Whether any paths are excluded from sanitization when SANITIZE_TARGET=integer_overflow

_product_list_vars += PRODUCT_INTEGER_OVERFLOW_EXCLUDE_PATHS

_product_list_vars += PRODUCT_ADB_KEYS

_product_single_value_vars += PRODUCT_ADB_KEYS

# Whether any paths should have CFI enabled for components

_product_list_vars += PRODUCT_CFI_INCLUDE_PATHS

_product_list_vars += PRODUCT_CFI_EXCLUDE_PATHS

# Whether the Scudo hardened allocator is disabled platform-wide

_product_list_vars += PRODUCT_DISABLE_SCUDO

_product_single_value_vars += PRODUCT_DISABLE_SCUDO

# A flag to override PRODUCT_COMPATIBLE_PROPERTY

_product_list_vars += PRODUCT_COMPATIBLE_PROPERTY_OVERRIDE

_product_single_value_vars += PRODUCT_COMPATIBLE_PROPERTY_OVERRIDE

# Whether the whitelist of actionable compatible properties should be disabled or not

_product_list_vars += PRODUCT_ACTIONABLE_COMPATIBLE_PROPERTY_DISABLE

_product_list_vars += PRODUCT_ENFORCE_ARTIFACT_PATH_REQUIREMENTS

_product_list_vars += PRODUCT_ENFORCE_ARTIFACT_SYSTEM_CERTIFICATE_REQUIREMENT

_product_single_value_vars += PRODUCT_ACTIONABLE_COMPATIBLE_PROPERTY_DISABLE

_product_single_value_vars += PRODUCT_ENFORCE_ARTIFACT_PATH_REQUIREMENTS

_product_single_value_vars += PRODUCT_ENFORCE_ARTIFACT_SYSTEM_CERTIFICATE_REQUIREMENT

_product_list_vars += PRODUCT_ARTIFACT_SYSTEM_CERTIFICATE_REQUIREMENT_WHITELIST

_product_list_vars += PRODUCT_ARTIFACT_PATH_REQUIREMENT_HINT

_product_list_vars += PRODUCT_ARTIFACT_PATH_REQUIREMENT_WHITELIST

# already been launched without dynamic partitions. Otherwise, the device

# is launched with dynamic partitions.

# This flag implies PRODUCT_USE_DYNAMIC_PARTITIONS.

_product_list_vars += PRODUCT_RETROFIT_DYNAMIC_PARTITIONS

_product_single_value_vars += PRODUCT_RETROFIT_DYNAMIC_PARTITIONS

# Other dynamic partition feature flags.PRODUCT_USE_DYNAMIC_PARTITION_SIZE and

# PRODUCT_BUILD_SUPER_PARTITION default to the value of PRODUCT_USE_DYNAMIC_PARTITIONS.

_product_list_vars += \

_product_single_value_vars += \

    PRODUCT_USE_DYNAMIC_PARTITIONS \

    PRODUCT_USE_DYNAMIC_PARTITION_SIZE \

    PRODUCT_BUILD_SUPER_PARTITION \

# If set to true, this product builds a generic OTA package, which installs generic system images

# onto matching devices. The product may only build a subset of system images (e.g. only

# system.img), so devices need to install the package in a system-only OTA manner.

_product_list_vars += PRODUCT_BUILD_GENERIC_OTA_PACKAGE

_product_single_value_vars += PRODUCT_BUILD_GENERIC_OTA_PACKAGE

# Whether any paths are excluded from being set XOM when ENABLE_XOM=true

_product_list_vars += PRODUCT_XOM_EXCLUDE_PATHS

_product_list_vars += PRODUCT_MANIFEST_PACKAGE_NAME_OVERRIDES

_product_list_vars += PRODUCT_PACKAGE_NAME_OVERRIDES

_product_list_vars += PRODUCT_CERTIFICATE_OVERRIDES

_product_list_vars += PRODUCT_BUILD_SYSTEM_IMAGE

_product_list_vars += PRODUCT_BUILD_SYSTEM_OTHER_IMAGE

_product_list_vars += PRODUCT_BUILD_VENDOR_IMAGE

_product_list_vars += PRODUCT_BUILD_PRODUCT_IMAGE

_product_list_vars += PRODUCT_BUILD_PRODUCT_SERVICES_IMAGE

_product_list_vars += PRODUCT_BUILD_ODM_IMAGE

_product_list_vars += PRODUCT_BUILD_CACHE_IMAGE

_product_list_vars += PRODUCT_BUILD_RAMDISK_IMAGE

_product_list_vars += PRODUCT_BUILD_USERDATA_IMAGE

# Controls for whether different partitions are built for the current product.

_product_single_value_vars += PRODUCT_BUILD_SYSTEM_IMAGE

_product_single_value_vars += PRODUCT_BUILD_SYSTEM_OTHER_IMAGE

_product_single_value_vars += PRODUCT_BUILD_VENDOR_IMAGE

_product_single_value_vars += PRODUCT_BUILD_PRODUCT_IMAGE

_product_single_value_vars += PRODUCT_BUILD_PRODUCT_SERVICES_IMAGE

_product_single_value_vars += PRODUCT_BUILD_ODM_IMAGE

_product_single_value_vars += PRODUCT_BUILD_CACHE_IMAGE

_product_single_value_vars += PRODUCT_BUILD_RAMDISK_IMAGE

_product_single_value_vars += PRODUCT_BUILD_USERDATA_IMAGE

_product_list_vars += PRODUCT_UPDATABLE_BOOT_MODULES

_product_list_vars += PRODUCT_UPDATABLE_BOOT_LOCATIONS

# Whether the product would like to check prebuilt ELF files.

_product_list_vars += PRODUCT_CHECK_ELF_FILES

_product_single_value_vars += PRODUCT_CHECK_ELF_FILES

.KATI_READONLY := _product_single_value_vars _product_list_vars

_product_var_list :=$= $(_product_single_value_vars) $(_product_list_vars)

# Macro to use below. $(1) is the name of the partition

define product-build-image-config

PRODUCT_BUILD_$(1)_IMAGE := $$(firstword $$(PRODUCT_BUILD_$(1)_IMAGE))

ifneq ($$(filter-out true false,$$(PRODUCT_BUILD_$(1)_IMAGE)),)

    $$(error Invalid PRODUCT_BUILD_$(1)_IMAGE: $$(PRODUCT_BUILD_$(1)_IMAGE) -- true false and empty are supported)

endif