Build image for super partition
... for bootstrapping / initializing the device.
Image is built to $(PRODUCT_OUT)/super.img when running
`m dist`. For A/B devices, the image contains other
partitions in the _a slot.
Change-Id: I1459d62f02b95f142dfb3b7608f88ec6801dbf37
Fixes: 111758129
Test: m superimage -j
diff --git a/core/Makefile b/core/Makefile
index f4bd213..830c714 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -2557,6 +2557,62 @@
endif # BOARD_AVB_ENABLE
# -----------------------------------------------------------------
+# super partition image
+
+# (1): list of items like "system", "vendor", "product", "product_services"
+# return: map each item to the corresponding image target.
+# system => $(BUILT_SYSTEMIMAGE), vendor => $(INSTALLED_VENDORIMAGE_TARGET), etc.
+define image-for-partitions
+$(foreach item,$(1),$(or $(strip $(foreach mapping,
+ system:$(BUILT_SYSTEMIMAGE)
+ product_services:$(INSTALLED_PRODUCT_SERVICESIMAGE_TARGET),
+ $(if $(filter $(call word-colon,1,$(mapping)),$(item)),
+ $(patsubst $(call word-colon,1,$(mapping)),$(call word-colon,2,$(mapping)),$(item))))),
+ $(INSTALLED_$(call to-upper,$(item)IMAGE_TARGET))))
+endef
+
+# (1): list of items like "system", "vendor", "product", "product_services"
+# return: map each item into a command ( wrapped in $$() ) that reads the size
+define read-size-of-partitions
+$(foreach p,$(1),$(call read-image-prop-dictionary,$($(p)image_intermediates)/generated_$(p)_image_info.txt,$(p)_size))
+endef
+
+ifeq (true,$(USE_LOGICAL_PARTITIONS))
+
+# BOARD_SUPER_PARTITION_SIZE must be defined to build super image.
+ifdef BOARD_SUPER_PARTITION_SIZE
+
+INSTALLED_SUPERIMAGE_TARGET := $(PRODUCT_OUT)/super.img
+$(INSTALLED_SUPERIMAGE_TARGET): $(call image-for-partitions,$(BOARD_SUPER_PARTITION_PARTITION_LIST))
+
+# For A/B devices, super partition always contains sub-partitions in the _a slot, because this
+# image should only be used for bootstrapping / initializing the device. When flashing the image,
+# bootloader fastboot should always mark _a slot as bootable.
+ifeq ($(AB_OTA_UPDATER),true)
+$(INSTALLED_SUPERIMAGE_TARGET): PRIVATE_PARTITION_SUFFIX=_a
+$(INSTALLED_SUPERIMAGE_TARGET): PRIVATE_METADATA_SLOTS=2
+else
+$(INSTALLED_SUPERIMAGE_TARGET): PRIVATE_METADATA_SLOTS=1
+endif # AB_OTA_UPDATER
+
+
+$(INSTALLED_SUPERIMAGE_TARGET): $(HOST_OUT_EXECUTABLES)/lpmake
+ $< \
+ --sparse \
+ --metadata-size 65536 \
+ --metadata-slots $(PRIVATE_METADATA_SLOTS) \
+ --device-size $(BOARD_SUPER_PARTITION_SIZE) \
+ --output $@ \
+ $(foreach name,$(BOARD_SUPER_PARTITION_PARTITION_LIST), \
+ --partition $(name)$(PRIVATE_PARTITION_SUFFIX):$$($(UUIDGEN) $(name)$(PRIVATE_PARTITION_SUFFIX)):readonly:$(call read-size-of-partitions,$(name)) \
+ --image $(name)$(PRIVATE_PARTITION_SUFFIX)=$(call image-for-partitions,$(name)))
+
+$(call dist-for-goals,dist_files,$(INSTALLED_SUPERIMAGE_TARGET))
+
+endif # BOARD_SUPER_PARTITION_SIZE
+endif # USE_LOGICAL_PARTITIONS
+
+# -----------------------------------------------------------------
# Check image sizes <= size of super partition
ifeq (,$(TARGET_BUILD_APPS))
@@ -2571,21 +2627,10 @@
.PHONY: check_android_partition_sizes
# Add image dependencies so that generated_*_image_info.txt are written before checking.
-ifneq (,$(filter system,$(BOARD_SUPER_PARTITION_PARTITION_LIST)))
-check_android_partition_sizes: $(BUILT_SYSTEMIMAGE)
-endif
-ifneq (,$(filter vendor,$(BOARD_SUPER_PARTITION_PARTITION_LIST)))
-check_android_partition_sizes: $(INSTALLED_VENDORIMAGE_TARGET)
-endif
-ifneq (,$(filter product,$(BOARD_SUPER_PARTITION_PARTITION_LIST)))
-check_android_partition_sizes: $(INSTALLED_PRODUCTIMAGE_TARGET)
-endif
-ifneq (,$(filter productservices,$(BOARD_SUPER_PARTITION_PARTITION_LIST)))
-check_android_partition_sizes: $(INSTALLED_PRODUCT_SERVICESIMAGE_TARGET)
-endif
+check_android_partition_sizes: $(call image-for-partitions,$(BOARD_SUPER_PARTITION_PARTITION_LIST))
check_android_partition_sizes:
- partition_size_list="$(foreach p,$(BOARD_SUPER_PARTITION_PARTITION_LIST),$(call read-image-prop-dictionary,$($(p)image_intermediates)/generated_$(p)_image_info.txt,$(p)_size))"; \
+ partition_size_list="$(call read-size-of-partitions,$(BOARD_SUPER_PARTITION_PARTITION_LIST))"; \
sum_sizes_expr=$$(sed -e 's/ /+/g' <<< "$${partition_size_list}"); \
if [ $$(( $${sum_sizes_expr} )) -gt $(BOARD_SUPER_PARTITION_SIZE) ]; then \
echo 'The sum of sizes of all logical partitions is larger than BOARD_SUPER_PARTITION_SIZE.'; \