AndroidBoot.mk

#Android makefile to build lk bootloader as a part of Android Build

LK_PATH := bootable/bootloader/lk/
CROOT_DIR := ../../..

ifneq ($(filter P% p% Q% q%,$(TARGET_PLATFORM_VERSION)),)
ifeq ($(PRODUCT_IOT),true)
  LK_PATH := hardware/bsp/bootloader/qcom/lk
  CROOT_DIR := ../../../../..
endif
endif

ifeq ($(BOOTLOADER_GCC_VERSION),)
ifndef $(2ND_TARGET_GCC_VERSION)
CROSS_COMPILE := $(CROOT_DIR)/prebuilts/gcc/linux-x86/arm/arm-eabi-$(TARGET_GCC_VERSION)/bin/arm-eabi-
else
CROSS_COMPILE := $(CROOT_DIR)/prebuilts/gcc/linux-x86/arm/arm-eabi-$(2ND_TARGET_GCC_VERSION)/bin/arm-eabi-
endif
else # BOOTLOADER_GCC_VERSION defined
ifeq ($(BOOTLOADER_GCC_VERSION),arm-linux-androideabi-4.9)
CROSS_COMPILE := $(CROOT_DIR)/prebuilts/gcc/linux-x86/arm/$(BOOTLOADER_GCC_VERSION)/bin/arm-linux-androideabi-
else
CROSS_COMPILE := $(CROOT_DIR)/prebuilts/gcc/linux-x86/arm/$(BOOTLOADER_GCC_VERSION)/bin/arm-eabi-
endif
endif

# Set flags if we need to include security libs
ifeq ($(TARGET_BOOTIMG_SIGNED),true)
  SIGNED_KERNEL := SIGNED_KERNEL=1
else
  SIGNED_KERNEL := SIGNED_KERNEL=0
endif

ifeq ($(BOOTLOADER_PLATFORM),)
  BOOTLOADER_PLATFORM := $(TARGET_BOARD_PLATFORM)
endif

ifeq ($(PRODUCT_SUPPORTS_VERITY),true)
  VERIFIED_BOOT := VERIFIED_BOOT=1
else
  VERIFIED_BOOT := VERIFIED_BOOT=0
endif

ifeq ($(TARGET_WEAR_SUPPORT_KM3),true)
  QSEECOM_SECAPP_REGION_2MB := QSEECOM_SECAPP_REGION_2MB=1
else
  QSEECOM_SECAPP_REGION_2MB := QSEECOM_SECAPP_REGION_2MB=0
endif

ifeq ($(TARGET_USES_OTA_KEY_FOR_ROT),true)
  VB1_KEY_USED := VB1_KEY_USED=1
else
  VB1_KEY_USED := VB1_KEY_USED=0
endif

ifeq ($(BOARD_AVB_ENABLE),true)
  VERIFIED_BOOT_2 := VERIFIED_BOOT_2=1
else
  VERIFIED_BOOT_2 := VERIFIED_BOOT_2=0
endif

# Always build without full dynamic partition support
DYNAMIC_PARTITION_SUPPORT := DYNAMIC_PARTITION_SUPPORT=0

ifeq ($(PRODUCT_VIRTUAL_AB_OTA),true)
  VIRTUAL_AB_OTA := VIRTUAL_AB_OTA=1
else
  VIRTUAL_AB_OTA := VIRTUAL_AB_OTA=0
endif

ifeq ($(BOARD_DTBO_NOT_SUPPORTED),true)
  TARGET_DTBO_NOT_SUPPORTED := TARGET_DTBO_NOT_SUPPORTED=1
else
  TARGET_DTBO_NOT_SUPPORTED := TARGET_DTBO_NOT_SUPPORTED=0
endif

ifeq ($(BOARD_BUILD_SYSTEM_ROOT_IMAGE),true)
 TARGET_USE_SYSTEM_AS_ROOT_IMAGE := TARGET_USE_SYSTEM_AS_ROOT_IMAGE=1
else
 TARGET_USE_SYSTEM_AS_ROOT_IMAGE := TARGET_USE_SYSTEM_AS_ROOT_IMAGE=0
endif

ifeq ($(EARLY_MOUNT_SUPPORT),true)
  ENABLE_BOOTDEVICE_MOUNT := ENABLE_BOOTDEVICE_MOUNT=1
else
  ENABLE_BOOTDEVICE_MOUNT := ENABLE_BOOTDEVICE_MOUNT=0
endif

ifeq ($(BOARD_HAVE_PM660),true)
  ENABLE_BG_SUPPORT := ENABLE_BG_SUPPORT=1
endif

ifeq ($(BOOTLOADER_DISABLE_DISPLAY),true)
  ENABLE_DISPLAY := ENABLE_DISPLAY=0
else
  ENABLE_DISPLAY := ENABLE_DISPLAY=1
endif

ifeq ($(KASLRSEED_SUPPORT),true)
  ENABLE_KASLRSEED := ENABLE_KASLRSEED=1
else
  ENABLE_KASLRSEED := ENABLE_KASLRSEED=0
endif

ifeq (1,$(filter 1,$(shell echo "$$(( $(PLATFORM_SDK_VERSION) >= 24 ))" )))
  OSVERSION_IN_BOOTIMAGE := OSVERSION_IN_BOOTIMAGE=1
  ENABLE_VB_ATTEST := ENABLE_VB_ATTEST=1
else
  OSVERSION_IN_BOOTIMAGE := OSVERSION_IN_BOOTIMAGE=0
  ENABLE_VB_ATTEST := ENABLE_VB_ATTEST=0
endif

ifneq ($(TARGET_BUILD_VARIANT),user)
  DEVICE_STATUS := DEFAULT_UNLOCK=true
endif

ifeq ($(TARGET_BUILD_VARIANT),user)
  BUILD_VARIANT := USER_BUILD_VARIANT=true
endif

ifeq ($(TARGET_BOARD_PLATFORM),msm8x09)
  BOOTLOADER_PLATFORM := msm8909
endif

ifeq ($(TARGET_BOARD_PLATFORM),msm8660)
  BOOTLOADER_PLATFORM := msm8660_surf
endif

ifeq ($(TARGET_BOOTLOADER_BOARD_NAME),)
  BOARD_NAME := BOARD_NAME=$(PRODUCT_NAME)
else
  BOARD_NAME := BOARD_NAME=$(TARGET_BOOTLOADER_BOARD_NAME)
endif

ABOOT_OUT := $(TARGET_OUT_INTERMEDIATES)/ABOOT_OBJ
$(ABOOT_OUT):
	$(hide) mkdir -p $(ABOOT_OUT)

ABOOT_CLEAN := $(ABOOT_OUT)/aboot_clean.timestamp
$(ABOOT_CLEAN):
	$(hide) rm -f $(TARGET_ABOOT_ELF)
	@touch $(ABOOT_CLEAN)

# ELF binary for ABOOT
TARGET_ABOOT_ELF := $(PRODUCT_OUT)/aboot.elf
$(TARGET_ABOOT_ELF): $(ABOOT_CLEAN) | $(ABOOT_OUT)
	$(MAKE) -C $(LK_PATH) TOOLCHAIN_PREFIX=$(CROSS_COMPILE) BOOTLOADER_OUT=$(CROOT_DIR)/$(ABOOT_OUT) $(BOOTLOADER_PLATFORM) $(EMMC_BOOT) $(SIGNED_KERNEL) $(VERIFIED_BOOT) $(VERIFIED_BOOT_2) $(VB1_KEY_USED) $(TARGET_DTBO_NOT_SUPPORTED) $(ENABLE_DISPLAY) $(ENABLE_KASLRSEED) $(ENABLE_BOOTDEVICE_MOUNT) $(DEVICE_STATUS) $(BUILD_VARIANT) $(BOARD_NAME) $(ENABLE_VB_ATTEST) $(OSVERSION_IN_BOOTIMAGE) $(QSEECOM_SECAPP_REGION_2MB) $(TARGET_USE_SYSTEM_AS_ROOT_IMAGE) $(DYNAMIC_PARTITION_SUPPORT) $(VIRTUAL_AB_OTA)

# NAND variant output
TARGET_NAND_BOOTLOADER := $(PRODUCT_OUT)/appsboot.mbn
NAND_BOOTLOADER_OUT := $(TARGET_OUT_INTERMEDIATES)/NAND_BOOTLOADER_OBJ

# Remove bootloader binary to trigger recompile when source changes
appsbootldr_clean := $(ABOOT_OUT)/appsbootldr_clean.timestamp
$(appsbootldr_clean) :
	$(hide) rm -f $(TARGET_NAND_BOOTLOADER)
	@touch $(appsbootldr_clean)

$(NAND_BOOTLOADER_OUT):
	mkdir -p $(NAND_BOOTLOADER_OUT)

# eMMC variant output
TARGET_EMMC_BOOTLOADER := $(PRODUCT_OUT)/emmc_appsboot.mbn
EMMC_BOOTLOADER_OUT := $(TARGET_OUT_INTERMEDIATES)/EMMC_BOOTLOADER_OBJ

emmc_appsbootldr_clean := $(ABOOT_OUT)/emmc_appsbootldr_clean.timestamp
$(emmc_appsbootldr_clean):
	$(hide) rm -f $(TARGET_EMMC_BOOTLOADER)
	@touch $(emmc_appsbootldr_clean)

$(EMMC_BOOTLOADER_OUT):
	mkdir -p $(EMMC_BOOTLOADER_OUT)

# Top level for NAND variant targets
$(TARGET_NAND_BOOTLOADER): $(appsbootldr_clean) | $(NAND_BOOTLOADER_OUT)
	$(MAKE) -C $(LK_PATH) TOOLCHAIN_PREFIX=$(CROSS_COMPILE) BOOTLOADER_OUT=$(CROOT_DIR)/$(NAND_BOOTLOADER_OUT) $(BOOTLOADER_PLATFORM) $(SIGNED_KERNEL) $(BOARD_NAME)
	$(hide) rm -f $(appsbootldr_clean)

# Top level for eMMC variant targets
$(TARGET_EMMC_BOOTLOADER): $(emmc_appsbootldr_clean) | $(EMMC_BOOTLOADER_OUT) $(INSTALLED_KEYSTOREIMAGE_TARGET)
	$(MAKE) -C $(LK_PATH) TOOLCHAIN_PREFIX=$(CROSS_COMPILE) BOOTLOADER_OUT=$(CROOT_DIR)/$(EMMC_BOOTLOADER_OUT) $(BOOTLOADER_PLATFORM) EMMC_BOOT=1 $(SIGNED_KERNEL) $(VERIFIED_BOOT) $(VERIFIED_BOOT_2) $(VB1_KEY_USED) $(TARGET_DTBO_NOT_SUPPORTED) $(ENABLE_DISPLAY) $(ENABLE_KASLRSEED) $(ENABLE_BOOTDEVICE_MOUNT) $(DEVICE_STATUS) $(BUILD_VARIANT) $(BOARD_NAME) $(ENABLE_VB_ATTEST) $(OSVERSION_IN_BOOTIMAGE) $(ENABLE_BG_SUPPORT) $(QSEECOM_SECAPP_REGION_2MB) $(TARGET_USE_SYSTEM_AS_ROOT_IMAGE) $(DYNAMIC_PARTITION_SUPPORT) $(VIRTUAL_AB_OTA)
	$(hide) rm -f $(emmc_appsbootldr_clean)

# Keep build NAND & eMMC as default for targets still using TARGET_BOOTLOADER
TARGET_BOOTLOADER := $(PRODUCT_OUT)/EMMCBOOT.MBN
$(TARGET_BOOTLOADER): $(NAND_BOOTLOADER_OUT) $(EMMC_BOOTLOADER_OUT) | $(TARGET_NAND_BOOTLOADER) $(TARGET_EMMC_BOOTLOADER)

#
# Build nandwrite as a part of Android Build for NAND configurations
#
TARGET_NANDWRITE := $(PRODUCT_OUT)/obj/nandwrite/build-$(strip $(BOOTLOADER_PLATFORM))_nandwrite/lk
NANDWRITE_OUT := $(TARGET_OUT_INTERMEDIATES)/nandwrite

nandwrite_clean := $(ABOOT_OUT)/nandwrite_clean.timestamp
$(nandwrite_clean):
	$(hide) rm -f $(TARGET_NANDWRITE)
	$(hide) rm -rf $(NANDWRITE_OUT)
	@touch $(nandwrite_clean)

$(NANDWRITE_OUT):
	mkdir -p $(NANDWRITE_OUT)

$(TARGET_NANDWRITE): $(nandwrite_clean) | $(NANDWRITE_OUT)
	@echo $(BOOTLOADER_PLATFORM)_nandwrite
	$(MAKE) -C $(LK_PATH) TOOLCHAIN_PREFIX=$(CROSS_COMPILE) BOOTLOADER_OUT=$(CROOT_DIR)/$(NANDWRITE_OUT) $(BOOTLOADER_PLATFORM)_nandwrite BUILD_NANDWRITE=1
	$(hide) rm -f $(nandwrite_clean)