Add build flags for spanning the super partition across multiple block devices.
This adds BOARD_SUPER_PARTITION_BLOCK_DEVICES, which must contain a list
of the (non-A/B suffixed) partitions that will comprise the super
partition. It is only intended for devices which cannot have a partition
named "super". For each entry, there must be a
BOARD_SUPER_PARTITION_x_DEVICE_SIZE variable defined with the exact size
of that partition (not its image size). The sum of these sizes must be
equal to BOARD_SUPER_PARTITION_SIZE.
Bug: 116802789
Test: device with BOARD_SUPER_PARTITION_BLOCK_DEVICES builds
Change-Id: I1a79c2e08ca99ce7e42207893ef3285caffecf44
diff --git a/core/config.mk b/core/config.mk
index e44af56..54bc1b7 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -932,6 +932,19 @@
endif
.KATI_READONLY := PRODUCT_OTA_ENFORCE_VINTF_KERNEL_REQUIREMENTS
+ifeq ($(PRODUCT_RETROFIT_DYNAMIC_PARTITIONS),true)
+ ifneq ($(PRODUCT_USE_DYNAMIC_PARTITIONS),true)
+ $(error PRODUCT_USE_DYNAMIC_PARTITIONS must be true when PRODUCT_RETROFIT_DYNAMIC_PARTITIONS \
+ is set)
+ endif
+ ifdef PRODUCT_SHIPPING_API_LEVEL
+ ifeq (true,$(call math_gt_or_eq,$(PRODUCT_SHIPPING_API_LEVEL),29))
+ $(error Devices with shipping API level $(PRODUCT_SHIPPING_API_LEVEL) must not set \
+ PRODUCT_RETROFIT_DYNAMIC_PARTITIONS)
+ endif
+ endif
+endif
+
ifeq ($(PRODUCT_USE_DYNAMIC_PARTITIONS),true)
requirements := \
PRODUCT_USE_DYNAMIC_PARTITION_SIZE \
@@ -1021,6 +1034,48 @@
$(BOARD_$(group)_PARTITION_LIST))
.KATI_READONLY := BOARD_SUPER_PARTITION_PARTITION_LIST
+ifdef BOARD_SUPER_PARTITION_SIZE
+ifeq ($(PRODUCT_RETROFIT_DYNAMIC_PARTITIONS),true)
+
+# The metadata device must be specified manually for retrofitting.
+ifndef BOARD_SUPER_PARTITION_METADATA_DEVICE
+$(error Must specify BOARD_SUPER_PARTITION_METADATA_DEVICE if BOARD_SUPER_PARTITION_BLOCK_DEVICES is used.)
+endif
+
+# The metadata device must be included in the super partition block device list.
+ifeq (,$(filter $(BOARD_SUPER_PARTITION_METADATA_DEVICE),$(BOARD_SUPER_PARTITION_BLOCK_DEVICES)))
+$(error BOARD_SUPER_PARTITION_METADATA_DEVICE is not listed in BOARD_SUPER_PARTITION_BLOCK_DEVICES.)
+endif
+
+# The metadata device must be supplied to init via the kernel command-line.
+BOARD_KERNEL_CMDLINE += androidboot.super_partition=$(BOARD_SUPER_PARTITION_METADATA_DEVICE)
+
+else # PRODUCT_RETROFIT_DYNAMIC_PARTITIONS
+
+# These should not be specified on devices launching with dynamic partition support.
+ifdef BOARD_SUPER_PARTITION_BLOCK_DEVICES
+$(error BOARD_SUPER_PARTITION_BLOCK_DEVICES can only be used if PRODUCT_RETROFIT_DYNAMIC_PARTITIONS is true.)
+endif
+ifdef BOARD_SUPER_PARTITION_METADATA_DEVICE
+$(error BOARD_SUPER_PARTITION_METADATA_DEVICE can only be used if PRODUCT_RETROFIT_DYNAMIC_PARTITIONS is true.)
+endif
+
+# For normal devices, we populate BOARD_SUPER_PARTITION_BLOCK_DEVICES so the
+# build can handle both cases consistently.
+BOARD_SUPER_PARTITION_BLOCK_DEVICES := super
+BOARD_SUPER_PARTITION_METADATA_DEVICE := super
+BOARD_SUPER_PARTITION_SUPER_DEVICE_SIZE := $(BOARD_SUPER_PARTITION_SIZE)
+
+endif # PRODUCT_RETROFIT_DYNAMIC_PARTITIONS
+endif # BOARD_SUPER_PARTITION_SIZE
+.KATI_READONLY := BOARD_SUPER_PARTITION_BLOCK_DEVICES
+.KATI_READONLY := BOARD_SUPER_PARTITION_METADATA_DEVICE
+
+$(foreach device,$(call to-upper,$(BOARD_SUPER_PARTITION_BLOCK_DEVICES)), \
+ $(if $(BOARD_SUPER_PARTITION_$(device)_DEVICE_SIZE),, \
+ $(error $(BOARD_SUPER_PARTITION_$(device)_DEVICE_SIZE must not be empty))) \
+ $(eval .KATI_READONLY := BOARD_SUPER_PARTITION_$(device)_DEVICE_SIZE))
+
endif # PRODUCT_BUILD_SUPER_PARTITION
# ###############################################################