From 211c90158cd8e822fd453ba88141cd1fda42ce7c Mon Sep 17 00:00:00 2001
From: Yueyao Zhu <yueyao@google.com>
Date: Thu, 27 Apr 2017 00:34:50 -0700
Subject: [PATCH] Makefile: support build and avb signing of dtbo img

Test: make with corresponding configurations in BoardConfig.mk
- dtbo.img is copied to the OUT directory
- avbtool info_image --image dtbo.img shows avb hashes
- avbtool info_image --image vbmeta.img shows dtbo partition info

Bug: 37730955
Change-Id: If3edaab860926c743f18fd031c911b076eb09fab
---
 core/Makefile | 28 +++++++++++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

diff --git a/core/Makefile b/core/Makefile
index 0a9937665b..5d449548e7 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -1689,6 +1689,26 @@ INSTALLED_VENDORIMAGE_TARGET := $(PRODUCT_OUT)/vendor.img
 $(eval $(call copy-one-file,$(BOARD_PREBUILT_VENDORIMAGE),$(INSTALLED_VENDORIMAGE_TARGET)))
 endif
 
+# -----------------------------------------------------------------
+# dtbo image
+ifdef BOARD_PREBUILT_DTBOIMAGE
+INSTALLED_DTBOIMAGE_TARGET := $(PRODUCT_OUT)/dtbo.img
+
+ifeq ($(BOARD_AVB_ENABLE),true)
+$(INSTALLED_DTBOIMAGE_TARGET): $(BOARD_PREBUILT_DTBOIMAGE) $(AVBTOOL)
+	cp $(BOARD_PREBUILT_DTBOIMAGE) $@
+	$(AVBTOOL) add_hash_footer \
+		--image $@ \
+		--partition_size $(BOARD_DTBOIMG_PARTITION_SIZE) \
+		--partition_name dtbo $(INTERNAL_AVB_SIGNING_ARGS) \
+		$(BOARD_AVB_DTBO_ADD_HASH_FOOTER_ARGS)
+else
+$(INSTALLED_DTBOIMAGE_TARGET): $(BOARD_PREBUILT_DTBOIMAGE)
+	cp $(BOARD_PREBUILT_DTBOIMAGE) $@
+endif
+
+endif
+
 # -----------------------------------------------------------------
 # vbmeta image
 ifeq ($(BOARD_AVB_ENABLE),true)
@@ -1704,6 +1724,11 @@ INTERNAL_AVB_MAKE_VBMETA_IMAGE_ARGS += \
     --include_descriptors_from_image $(INSTALLED_VENDORIMAGE_TARGET)
 endif
 
+ifdef INSTALLED_DTBOIMAGE_TARGET
+INTERNAL_AVB_MAKE_VBMETA_IMAGE_ARGS += \
+		--include_descriptors_from_image $(INSTALLED_DTBOIMAGE_TARGET)
+endif
+
 ifeq ($(BOARD_BUILD_SYSTEM_ROOT_IMAGE),true)
 INTERNAL_AVB_MAKE_VBMETA_IMAGE_ARGS += --setup_rootfs_from_kernel $(BUILT_SYSTEMIMAGE)
 endif
@@ -1740,7 +1765,7 @@ define build-vbmetaimage-target
 endef
 
 INSTALLED_VBMETAIMAGE_TARGET := $(BUILT_VBMETAIMAGE_TARGET)
-$(INSTALLED_VBMETAIMAGE_TARGET): $(AVBTOOL) $(INSTALLED_BOOTIMAGE_TARGET) $(INSTALLED_SYSTEMIMAGE) $(INSTALLED_VENDORIMAGE_TARGET)
+$(INSTALLED_VBMETAIMAGE_TARGET): $(AVBTOOL) $(INSTALLED_BOOTIMAGE_TARGET) $(INSTALLED_SYSTEMIMAGE) $(INSTALLED_VENDORIMAGE_TARGET) $(INSTALLED_DTBOIMAGE_TARGET)
 	$(build-vbmetaimage-target)
 
 .PHONY: vbmetaimage-nodeps
@@ -1980,6 +2005,7 @@ $(BUILT_TARGET_FILES_PACKAGE): \
 		$(INSTALLED_USERDATAIMAGE_TARGET) \
 		$(INSTALLED_CACHEIMAGE_TARGET) \
 		$(INSTALLED_VENDORIMAGE_TARGET) \
+		$(INSTALLED_DTBOIMAGE_TARGET) \
 		$(INTERNAL_SYSTEMOTHERIMAGE_FILES) \
 		$(INSTALLED_ANDROID_INFO_TXT_TARGET) \
 		$(INSTALLED_KERNEL_TARGET) \