new product

new directory

device/[company]/[device] [device] is your PCBA name. product is your software.

mkdir -p device/qiushao/pure

lunch
--> COMMON_LUNCH_CHOICES := pure-eng(AndroidProducts.mk)
--> PRODUCT_MAKEFILES := $(LOCAL_DIR)/pure.mk(AndroidProducts.mk)
--> PRODUCT_DEVICE := pure(pure.mk)
--> device/[company]/pure/BoardConfig.mk
==> out directory: PRODUCT_NAME := pure(pure.mk)

vim AndroidProducts.mk

PRODUCT_MAKEFILES := \
    $(LOCAL_DIR)/pure.mk

COMMON_LUNCH_CHOICES := \
    pure-eng

vim pure.mk

$(call inherit-product, $(SRC_TARGET_DIR)/product/aosp_x86_64.mk)

PRODUCT_NAME   := pure
PRODUCT_DEVICE := pure

vim BoardConfig.mk

include $(SRC_TARGET_DIR)/board/generic_x86_64/BoardConfig.mk

tree 

.
└── pure
    ├── AndroidProducts.mk
    ├── BoardConfig.mk
    └── pure.mk