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DEBUG ?= 1

################################################################################
# Following variables defines how the NS_USER (Non Secure User - Client
# Application), NS_KERNEL (Non Secure Kernel), S_KERNEL (Secure Kernel) and
# S_USER (Secure User - TA) are compiled
################################################################################
COMPILE_NS_USER   ?= 64
override COMPILE_NS_KERNEL := 64
COMPILE_S_USER    ?= 64
COMPILE_S_KERNEL  ?= 64

-include common.mk

################################################################################
# Paths to git projects and various binaries
################################################################################
ARM_TF_PATH		?= $(ROOT)/arm-trusted-firmware
EDK2_PATH		?= $(ROOT)/edk2
EDK2_BIN		?= $(EDK2_PATH)/Build/ArmVExpress-FVP-AArch64/RELEASE_GCC49/FV/FVP_AARCH64_EFI.fd
FOUNDATION_PATH		?= $(ROOT)/Foundation_Platformpkg
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ifeq ($(wildcard $(FOUNDATION_PATH)),)
$(error $(FOUNDATION_PATH) does not exist)
endif

################################################################################
# Targets
################################################################################
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all: arm-tf edk2 linux optee-os optee-client xtest
all-clean: arm-tf-clean busybox-clean edk2-clean optee-os-clean \
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	optee-client-clean


-include toolchain.mk

################################################################################
# ARM Trusted Firmware
################################################################################
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ARM_TF_EXPORTS ?= \
	CFLAGS="-O0 -gdwarf-2" \
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	CROSS_COMPILE="$(CCACHE)$(AARCH64_CROSS_COMPILE)"
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ARM_TF_FLAGS ?= \
	BL32=$(OPTEE_OS_BIN) \
	BL33=$(EDK2_BIN) \
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	DEBUG=0 \
	ARM_TSP_RAM_LOCATION=tdram \
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	PLAT=fvp \
	SPD=opteed

arm-tf: optee-os edk2
	$(ARM_TF_EXPORTS) $(MAKE) -C $(ARM_TF_PATH) $(ARM_TF_FLAGS) all fip
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	$(ARM_TF_EXPORTS) $(MAKE) -C $(ARM_TF_PATH) $(ARM_TF_FLAGS) clean

################################################################################
# Busybox
################################################################################
BUSYBOX_COMMON_TARGET = fvp
BUSYBOX_CLEAN_COMMON_TARGET = fvp clean
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busybox: busybox-common

busybox-clean: busybox-clean-common
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busybox-cleaner: busybox-cleaner-common

################################################################################
# EDK2 / Tianocore
################################################################################
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define edk2-call
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	GCC49_AARCH64_PREFIX=$(LEGACY_AARCH64_CROSS_COMPILE) \
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	     $(MAKE) -j1 -C $(EDK2_PATH) \
	     -f ArmPlatformPkg/Scripts/Makefile EDK2_ARCH=AARCH64 \
	     EDK2_DSC=ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-FVP-AArch64.dsc \
	     EDK2_TOOLCHAIN=GCC49 EDK2_BUILD=RELEASE \
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	     EDK2_MACROS="-n 6 -D ARM_FOUNDATION_FVP=1 -D ARM_FVP_BOOT_ANDROID_FROM_SEMIHOSTING=1"
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edk2: edk2-common

edk2-clean: edk2-clean-common

################################################################################
# Linux kernel
################################################################################
LINUX_DEFCONFIG_COMMON_ARCH := arm64
LINUX_DEFCONFIG_COMMON_FILES := \
		$(LINUX_PATH)/arch/arm64/configs/defconfig \
		$(CURDIR)/kconfigs/fvp.conf

linux-defconfig: $(LINUX_PATH)/.config

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LINUX_COMMON_FLAGS += ARCH=arm64

linux: linux-common

linux-defconfig-clean: linux-defconfig-clean-common

LINUX_CLEAN_COMMON_FLAGS += ARCH=arm64

linux-clean: linux-clean-common

LINUX_CLEANER_COMMON_FLAGS += ARCH=arm64

linux-cleaner: linux-cleaner-common

################################################################################
# OP-TEE
################################################################################
OPTEE_OS_COMMON_FLAGS += PLATFORM=vexpress-fvp
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optee-os: optee-os-common

OPTEE_OS_CLEAN_COMMON_FLAGS += PLATFORM=vexpress-fvp
optee-os-clean: optee-os-clean-common
optee-client: optee-client-common
optee-client-clean: optee-client-clean-common
################################################################################
# xtest / optee_test
################################################################################
xtest: xtest-common
xtest-clean: xtest-clean-common
xtest-patch: xtest-patch-common

################################################################################
# Root FS
################################################################################
.PHONY: filelist-tee
filelist-tee:
	@echo "# xtest / optee_test" > $(GEN_ROOTFS_FILELIST)
	@find $(OPTEE_TEST_OUT_PATH) -type f -name "xtest" | sed 's/\(.*\)/file \/bin\/xtest \1 755 0 0/g' >> $(GEN_ROOTFS_FILELIST)
	@echo "# TAs" >> $(GEN_ROOTFS_FILELIST)
	@echo "dir /lib/optee_armtz 755 0 0" >> $(GEN_ROOTFS_FILELIST)
	@find $(OPTEE_TEST_OUT_PATH) -name "*.ta" | \
		sed 's/\(.*\)\/\(.*\)/file \/lib\/optee_armtz\/\2 \1\/\2 444 0 0/g' >> $(GEN_ROOTFS_FILELIST)
	@echo "# Secure storage dig" >> $(GEN_ROOTFS_FILELIST)
	@echo "dir /data 755 0 0" >> $(GEN_ROOTFS_FILELIST)
	@echo "dir /data/tee 755 0 0" >> $(GEN_ROOTFS_FILELIST)
	@if [ -e $(OPTEE_GENDRV_MODULE) ]; then \
		echo "# OP-TEE device" >> $(GEN_ROOTFS_FILELIST); \
		echo "dir /lib/modules 755 0 0" >> $(GEN_ROOTFS_FILELIST); \
		echo "dir /lib/modules/$(call KERNEL_VERSION) 755 0 0" >> $(GEN_ROOTFS_FILELIST); \
		echo "file /lib/modules/$(call KERNEL_VERSION)/optee.ko $(OPTEE_GENDRV_MODULE) 755 0 0" >> $(GEN_ROOTFS_FILELIST); \
	fi
	@echo "# OP-TEE Client" >> $(GEN_ROOTFS_FILELIST)
	@echo "file /bin/tee-supplicant $(OPTEE_CLIENT_EXPORT)/bin/tee-supplicant 755 0 0" >> $(GEN_ROOTFS_FILELIST)
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	@echo "file /lib/libteec.so.1.0 $(OPTEE_CLIENT_EXPORT)/lib/libteec.so.1.0 755 0 0" >> $(GEN_ROOTFS_FILELIST)
	@echo "slink /lib/libteec.so.1 libteec.so.1.0 755 0 0" >> $(GEN_ROOTFS_FILELIST)
	@echo "slink /lib/libteec.so libteec.so.1 755 0 0" >> $(GEN_ROOTFS_FILELIST)
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update_rootfs: busybox optee-client xtest filelist-tee
	cat $(GEN_ROOTFS_PATH)/filelist-final.txt $(GEN_ROOTFS_PATH)/filelist-tee.txt > $(GEN_ROOTFS_PATH)/filelist.tmp
	cd $(GEN_ROOTFS_PATH); \
	        $(LINUX_PATH)/usr/gen_init_cpio $(GEN_ROOTFS_PATH)/filelist.tmp | gzip > $(GEN_ROOTFS_PATH)/filesystem.cpio.gz

################################################################################
# Run targets
################################################################################
# This target enforces updating root fs etc
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run: all
	$(MAKE) update_rootfs
	$(MAKE) run-only
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	@ln -sf $(LINUX_PATH)/arch/arm64/boot/Image $(FOUNDATION_PATH)/kernel
	@ln -sf $(GEN_ROOTFS_PATH)/filesystem.cpio.gz $(FOUNDATION_PATH)/ramdisk.img
	@ln -sf $(LINUX_PATH)/arch/arm64/boot/Image $(FOUNDATION_PATH)/Image
	@ln -sf $(GEN_ROOTFS_PATH)/filesystem.cpio.gz $(FOUNDATION_PATH)/filesystem.cpio.gz
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	@ln -sf $(LINUX_PATH)/arch/arm64/boot/dts/arm/foundation-v8.dtb $(FOUNDATION_PATH)/fdt.dtb
	@cd $(FOUNDATION_PATH); \
	$(FOUNDATION_PATH)/models/Linux64_GCC-4.7/Foundation_Platform \
	--cores=4 \
	--secure-memory \
	--visualization \
	--gicv3 \
	--data="$(ARM_TF_PATH)/build/fvp/release/bl1.bin"@0x0 \
	--data="$(ARM_TF_PATH)/build/fvp/release/fip.bin"@0x8000000