1########################################################## 2## Common mk file used for Android to compile and ## 3## integrate OP-TEE related components ## 4## Following flags need to be defined in optee*.mk ## 5## OPTEE_OS_DIR ## 6## OPTEE_TA_TARGETS ## 7## OPTEE_CFG_ARM64_CORE ## 8## OPTEE_PLATFORM ## 9## OPTEE_PLATFORM_FLAVOR ## 10## OPTEE_EXTRA_FLAGS (optional) ## 11## OPTEE_EXTRA_TA_FLAGS (optional) ## 12## And BUILD_OPTEE_MK needs to be defined in optee*.mk ## 13## to point to this file ## 14## ## 15## local_module needs to be defined before including ## 16## this file to build TAs ## 17## ## 18########################################################## 19 20########################################################## 21## define common variables, like TA_DEV_KIT_DIR ## 22########################################################## 23TOP_ROOT_ABS := $(realpath $(TOP)) 24 25PREBUILT_MAKE ?= prebuilts/build-tools/linux-x86/bin/make 26# we need this check because the Pie build does not have 27# this prebuilt make tool 28ifneq (,$(wildcard $(PREBUILT_MAKE))) 29# for master and versions which has prebuilt make 30HOST_MAKE := $(PREBUILT_MAKE) 31 32# The AOSP build tool is not the regular make, 33# that it adds -jN to $(MAKE), and that we should preserve 34# the flag or we would lose parallel build 35# The MAKE is redefined here in AOSP ckati: 36# https://android.googlesource.com/platform/build/kati/+/master/main.cc#100 37ifneq (,$(filter -j%, $(MAKE))) 38HOST_MAKE += $(filter -j%, $(MAKE)) 39endif 40 41else 42# For P and old versions which does not have prebuilt make, 43# let's use MAKE as what we did before 44HOST_MAKE := $(MAKE) 45endif 46 47 48# OPTEE_OUT_DIR could be exported explicitly 49# if PRODUCT_OUT is not the default out directory in aosp workspace 50OPTEE_OUT_DIR ?= $(PRODUCT_OUT)/optee 51ABS_OPTEE_OUT_DIR ?= $(realpath $(PRODUCT_OUT))/optee 52OPTEE_TA_OUT_DIR ?= $(OPTEE_OUT_DIR)/ta 53ABS_OPTEE_TA_OUT_DIR ?= $(ABS_OPTEE_OUT_DIR)/ta 54# Set so that OP-TEE clients can find the installed dev-kit, which 55# depends on platform and its OP-TEE word-size. 56OPTEE_OS_OUT_DIR ?= $(OPTEE_OUT_DIR)/arm-plat-$(OPTEE_PLATFORM) 57ABS_OPTEE_OS_OUT_DIR := $(ABS_OPTEE_OUT_DIR)/arm-plat-$(OPTEE_PLATFORM) 58ifneq ($(local_optee_ta_target),) 59TA_TARGET := $(local_optee_ta_target) 60else 61TA_TARGET := $(OPTEE_TA_TARGETS) 62endif 63TA_DEV_KIT_DIR := $(ABS_OPTEE_OS_OUT_DIR)/export-$(TA_TARGET) 64 65CROSS_COMPILE64 ?= $(TOP_ROOT_ABS)/$(TARGET_TOOLS_PREFIX) 66CROSS_COMPILE_LINE := CROSS_COMPILE64="$(CROSS_COMPILE64)" 67ifneq ($(strip $($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX)),) 68CROSS_COMPILE32 ?= $(TOP_ROOT_ABS)/$($(combo_2nd_arch_prefix)TARGET_TOOLS_PREFIX) 69CROSS_COMPILE_LINE += CROSS_COMPILE32="$(CROSS_COMPILE32)" 70endif 71 72OPTEE_BIN := $(OPTEE_OS_OUT_DIR)/core/tee.bin 73 74$(OPTEE_BIN) : $(sort $(shell find -L $(OPTEE_OS_DIR))) 75 76########################################################### 77## define making rules for $(OPTEE_BIN) target, and add ## 78## condition check to make it only be defined once ## 79## even though this mk file might be included multiple ## 80## times. The process to generate $(OPTEE_BIN) file will ## 81## generate the header files under ## 82## $(TA_DEV_KIT_DIR)/host_include too. ## 83## And the $(OPTEE_BIN) will be used as dependency for ## 84## other projects ## 85########################################################### 86ifneq (true,$(BUILD_OPTEE_OS_DEFINED)) 87BUILD_OPTEE_OS_DEFINED := true 88$(OPTEE_BIN): 89 @echo "Start building optee_os..." 90 +$(HOST_MAKE) -C $(TOP_ROOT_ABS)/$(OPTEE_OS_DIR) \ 91 O=$(ABS_OPTEE_OS_OUT_DIR) \ 92 CFG_USER_TA_TARGETS=$(OPTEE_TA_TARGETS) \ 93 CFG_ARM64_core=$(OPTEE_CFG_ARM64_CORE) \ 94 PLATFORM=$(OPTEE_PLATFORM) \ 95 PLATFORM_FLAVOR=$(OPTEE_PLATFORM_FLAVOR) \ 96 $(CROSS_COMPILE_LINE) \ 97 $(OPTEE_EXTRA_FLAGS) 98 @echo "Finished building optee_os..." 99 100endif 101 102########################################################## 103## Lines for building TAs automatically ## 104## will only be included in Android.mk for TAs ## 105## local_module: ## 106## need to be defined before include for this ## 107########################################################## 108ifneq (false,$(INCLUDE_FOR_BUILD_TA)) 109include $(CLEAR_VARS) 110 111LOCAL_MODULE := $(local_module) 112LOCAL_PREBUILT_MODULE_FILE := $(OPTEE_TA_OUT_DIR)/$(LOCAL_MODULE) 113LOCAL_MODULE_PATH := $(TARGET_OUT_VENDOR)/lib/optee_armtz 114ifneq ($(filter %.ta, $(local_module)),) 115LOCAL_MODULE_CLASS := EXECUTABLES 116else 117LOCAL_MODULE_CLASS := STATIC_LIBRARIES 118endif 119LOCAL_MODULE_TAGS := optional 120LOCAL_REQUIRED_MODULES := $(local_module_deps) 121 122TA_TMP_DIR := $(addsuffix _$(TA_TARGET), $(subst /,_,$(LOCAL_PATH))) 123TA_TMP_FILE := $(OPTEE_TA_OUT_DIR)/$(TA_TMP_DIR)/$(LOCAL_MODULE) 124$(LOCAL_PREBUILT_MODULE_FILE): $(TA_TMP_FILE) 125 @mkdir -p $(dir $@) 126 cp -vf $< $@ 127 128$(TA_TMP_FILE): PRIVATE_TA_SRC_DIR := $(LOCAL_PATH) 129$(TA_TMP_FILE): PRIVATE_TA_TMP_FILE := $(TA_TMP_FILE) 130$(TA_TMP_FILE): PRIVATE_TA_TMP_DIR := $(TA_TMP_DIR) 131$(TA_TMP_FILE): PRIVATE_TA_DEV_KIT_DIR := $(TA_DEV_KIT_DIR) 132$(TA_TMP_FILE): $(OPTEE_BIN) 133 @echo "Start building TA for $(PRIVATE_TA_SRC_DIR) $(PRIVATE_TA_TMP_FILE)..." 134 +$(HOST_MAKE) -C $(TOP_ROOT_ABS)/$(PRIVATE_TA_SRC_DIR) O=$(ABS_OPTEE_TA_OUT_DIR)/$(PRIVATE_TA_TMP_DIR) \ 135 TA_DEV_KIT_DIR=$(PRIVATE_TA_DEV_KIT_DIR) \ 136 $(CROSS_COMPILE_LINE) \ 137 $(OPTEE_EXTRA_TA_FLAGS) 138 @echo "Finished building TA for $(PRIVATE_TA_SRC_DIR) $(PRIVATE_TA_TMP_FILE)..." 139 140include $(BUILD_PREBUILT) 141local_module_deps := 142local_optee_ta_target := 143endif 144