build: add generic build template for optee-os packages

Add a generic template include/optee-os.mk to build OP-TEE.

Signed-off-by: Thomas Richard <thomas.richard@bootlin.com>
Link: https://github.com/openwrt/openwrt/pull/16716
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

include/optee-os.mk

@@ -0,0 +1,113 @@
+include $(INCLUDE_DIR)/prereq.mk
+
+PKG_NAME ?= optee-os
+
+ifndef PKG_SOURCE_PROTO
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL_FILE:=$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL = https://github.com/OP-TEE/optee_os/archive/refs/tags/
+TAR_OPTIONS+= --transform 's/optee_os/$(PKG_NAME)/'
+endif
+
+PKG_BUILD_DIR = $(BUILD_DIR)/$(PKG_NAME)-$(BUILD_VARIANT)/$(PKG_NAME)-$(PKG_VERSION)
+
+PKG_TARGETS := bin
+PKG_FLAGS:=nonshared
+
+PKG_LICENSE:=BSD 2-Clause
+PKG_LICENSE_FILES:=LICENSE
+
+PKG_BUILD_PARALLEL ?= 1
+
+$(eval $(call TestHostCommand,python3-cryptography, \
+  Please install the Python3 cryptography module, \
+  $(STAGING_DIR_HOST)/bin/python3 -c 'import cryptography'))
+
+$(eval $(call TestHostCommand,python3-pyelftools, \
+    Please install the Python3 pyelftools module, \
+    $(STAGING_DIR_HOST)/bin/python3 -c 'import elftools'))
+
+export GCC_HONOUR_COPTS=s
+
+define Package/optee-os/install/default
+	$(CP) $(patsubst %,$(PKG_BUILD_DIR)/out/arm-plat-$(PLAT)/core/%,$(OPTEE_IMAGE)) $(1)/
+endef
+
+Package/optee-os/install = $(Package/optee-os/install/default)
+
+define Optee-os/Init
+  BUILD_TARGET:=
+  BUILD_SUBTARGET:=
+  BUILD_DEVICES:=
+  NAME:=
+  DEPENDS:=
+  HIDDEN:=
+  DEFAULT:=
+  VARIANT:=$(1)
+  PLAT:=$(1)
+  PLAT_FLAVOR:=
+  OPTEE_IMAGE:=tee-header_v2.bin tee-pager_v2.bin tee-pageable_v2.bin
+endef
+
+TARGET_DEP = TARGET_$(BUILD_TARGET)$(if $(BUILD_SUBTARGET),_$(BUILD_SUBTARGET))
+
+define Build/Optee-os/Target
+  $(eval $(call Optee-os/Init,$(1)))
+  $(eval $(call Optee-os/Default,$(1)))
+  $(eval $(call Optee-os/$(1),$(1)))
+
+  define Package/optee-os-$(1)
+    SECTION:=boot
+    CATEGORY:=Boot Loaders
+    TITLE:=OPTEE-OS for $(NAME)
+    VARIANT:=$(VARIANT)
+    DEPENDS:=@!IN_SDK $(DEPENDS)
+    HIDDEN:=$(HIDDEN)
+    ifneq ($(BUILD_TARGET),)
+      DEPENDS += @$(TARGET_DEP)
+      ifneq ($(BUILD_DEVICES),)
+        DEFAULT := y if ($(TARGET_DEP)_Default \
+		$(patsubst %,|| $(TARGET_DEP)_DEVICE_%,$(BUILD_DEVICES)) \
+		$(patsubst %,|| $(patsubst TARGET_%,TARGET_DEVICE_%,$(TARGET_DEP))_DEVICE_%,$(BUILD_DEVICES)))
+      endif
+    endif
+    $(if $(DEFAULT),DEFAULT:=$(DEFAULT))
+    URL:=https://optee.readthedocs.io
+  endef
+
+  define Package/optee-os-$(1)/install
+	$$(Package/optee-os/install)
+  endef
+endef
+
+define Build/Configure/Optee-os
+endef
+
+define Build/Compile/Optee-os
+	+$(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR) \
+		PATH=$(LINUX_DIR)/scripts/dtc/:$(PATH) \
+		CROSS_COMPILE=$(TARGET_CROSS) \
+		CROSS_COMPILE_core="$(TARGET_CROSS)" \
+		CROSS_COMPILE_ta_arm64="$(TARGET_CROSS)" \
+		CROSS_COMPILE_ta_arm32="$(TARGET_CROSS)" \
+		$(if $(CONFIG_ARCH_64BIT), CFG_ARM64_core=y CFG_USER_TA_TARGETS=ta_arm64, CFG_ARM32_core=y) \
+		PLATFORM="$(PLAT)" \
+		PLATFORM_FLAVOR="$(call qstrip,$(PLAT_FLAVOR))" \
+		$(OPTEE_MAKE_FLAGS)
+endef
+
+define BuildPackage/Optee-os/Defaults
+  Build/Configure/Default = $$$$(Build/Configure/Optee-os)
+  Build/Compile/Default = $$$$(Build/Compile/Optee-os)
+endef
+
+define BuildPackage/Optee-os
+  $(eval $(call BuildPackage/Optee-os/Defaults))
+  $(foreach type,$(if $(DUMP),$(OPTEE_TARGETS),$(BUILD_VARIANT)), \
+    $(eval $(call Build/Optee-os/Target,$(type)))
+  )
+  $(eval $(call Build/DefaultTargets))
+  $(foreach type,$(if $(DUMP),$(OPTEE_TARGETS),$(BUILD_VARIANT)), \
+    $(call BuildPackage,optee-os-$(type))
+  )
+endef