rootdir/Android.mk - platform/system/core - Gitiles

 LOCAL_PATH:= $(call my-dir)

 #######################################
 # init-debug.rc
 include $(CLEAR_VARS)

 LOCAL_MODULE := init-debug.rc
 LOCAL_LICENSE_KINDS := SPDX-license-identifier-Apache-2.0
 LOCAL_LICENSE_CONDITIONS := notice
 LOCAL_SRC_FILES := $(LOCAL_MODULE)
 LOCAL_MODULE_CLASS := ETC
 LOCAL_MODULE_PATH := $(TARGET_OUT_ETC)/init

 include $(BUILD_PREBUILT)

 #######################################
 # asan.options
 ifneq ($(filter address,$(SANITIZE_TARGET)),)

 include $(CLEAR_VARS)

 LOCAL_MODULE := asan.options
 LOCAL_LICENSE_KINDS := SPDX-license-identifier-Apache-2.0
 LOCAL_LICENSE_CONDITIONS := notice
 LOCAL_MODULE_CLASS := ETC
 LOCAL_SRC_FILES := $(LOCAL_MODULE)
 LOCAL_MODULE_PATH := $(TARGET_OUT)

 include $(BUILD_PREBUILT)

 # ASAN extration.
 ASAN_EXTRACT_FILES :=
 ifeq ($(SANITIZE_TARGET_SYSTEM),true)
 include $(CLEAR_VARS)
 LOCAL_MODULE:= asan_extract
 LOCAL_LICENSE_KINDS:= SPDX-license-identifier-Apache-2.0
 LOCAL_LICENSE_CONDITIONS:= notice
 LOCAL_MODULE_TAGS := optional
 LOCAL_MODULE_CLASS := EXECUTABLES
 LOCAL_SRC_FILES := asan_extract.sh
 LOCAL_INIT_RC := asan_extract.rc
 # We need bzip2 on device for extraction.
 LOCAL_REQUIRED_MODULES := bzip2
 include $(BUILD_PREBUILT)
 ASAN_EXTRACT_FILES := asan_extract
 endif

 endif

 #######################################
 # init.environ.rc

 include $(CLEAR_VARS)
 LOCAL_MODULE_CLASS := ETC
 LOCAL_MODULE := init.environ.rc
 LOCAL_LICENSE_KINDS := SPDX-license-identifier-Apache-2.0
 LOCAL_LICENSE_CONDITIONS := notice
 LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT)
 LOCAL_REQUIRED_MODULES := etc_classpath

 EXPORT_GLOBAL_ASAN_OPTIONS :=
 ifneq ($(filter address,$(SANITIZE_TARGET)),)
   EXPORT_GLOBAL_ASAN_OPTIONS := export ASAN_OPTIONS include=/system/asan.options
   LOCAL_REQUIRED_MODULES := asan.options $(ASAN_OPTIONS_FILES) $(ASAN_EXTRACT_FILES)
 endif

 EXPORT_GLOBAL_HWASAN_OPTIONS :=
 ifneq ($(filter hwaddress,$(SANITIZE_TARGET)),)
   ifneq ($(HWADDRESS_SANITIZER_GLOBAL_OPTIONS),)
     EXPORT_GLOBAL_HWASAN_OPTIONS := export HWASAN_OPTIONS $(HWADDRESS_SANITIZER_GLOBAL_OPTIONS)
   endif
 endif

 EXPORT_GLOBAL_GCOV_OPTIONS :=
 ifeq ($(NATIVE_COVERAGE),true)
   EXPORT_GLOBAL_GCOV_OPTIONS := export GCOV_PREFIX /data/misc/trace
 endif

 EXPORT_GLOBAL_CLANG_COVERAGE_OPTIONS :=
 ifeq ($(CLANG_COVERAGE),true)
   EXPORT_GLOBAL_CLANG_COVERAGE_OPTIONS := export LLVM_PROFILE_FILE /data/misc/trace/clang-%20m.profraw
 endif

 # Put it here instead of in init.rc module definition,
 # because init.rc is conditionally included.
 #
 # create some directories (some are mount points) and symlinks
 LOCAL_POST_INSTALL_CMD := mkdir -p $(addprefix $(TARGET_ROOT_OUT)/, \
     dev proc sys system data data_mirror odm oem acct config storage mnt apex debug_ramdisk \
     linkerconfig second_stage_resources postinstall $(BOARD_ROOT_EXTRA_FOLDERS)); \
     ln -sf /system/bin $(TARGET_ROOT_OUT)/bin; \
     ln -sf /system/etc $(TARGET_ROOT_OUT)/etc; \
     ln -sf /data/user_de/0/com.android.shell/files/bugreports $(TARGET_ROOT_OUT)/bugreports; \
     ln -sfn /sys/kernel/debug $(TARGET_ROOT_OUT)/d; \
     ln -sf /storage/self/primary $(TARGET_ROOT_OUT)/sdcard
 ifdef BOARD_USES_VENDORIMAGE
   LOCAL_POST_INSTALL_CMD += ; mkdir -p $(TARGET_ROOT_OUT)/vendor
 else
   LOCAL_POST_INSTALL_CMD += ; ln -sf /system/vendor $(TARGET_ROOT_OUT)/vendor
 endif
 ifdef BOARD_USES_PRODUCTIMAGE
   LOCAL_POST_INSTALL_CMD += ; mkdir -p $(TARGET_ROOT_OUT)/product
 else
   LOCAL_POST_INSTALL_CMD += ; ln -sf /system/product $(TARGET_ROOT_OUT)/product
 endif
 ifdef BOARD_USES_SYSTEM_EXTIMAGE
   LOCAL_POST_INSTALL_CMD += ; mkdir -p $(TARGET_ROOT_OUT)/system_ext
 else
   LOCAL_POST_INSTALL_CMD += ; ln -sf /system/system_ext $(TARGET_ROOT_OUT)/system_ext
 endif
 ifdef BOARD_USES_METADATA_PARTITION
   LOCAL_POST_INSTALL_CMD += ; mkdir -p $(TARGET_ROOT_OUT)/metadata
 endif

 # For /odm partition.
 LOCAL_POST_INSTALL_CMD += ; mkdir -p $(TARGET_ROOT_OUT)/odm
 # For Treble Generic System Image (GSI), system-as-root GSI needs to work on
 # both devices with and without /odm partition. Those symlinks are for devices
 # without /odm partition. For devices with /odm partition, mount odm.img under
 # /odm will hide those symlinks.
 LOCAL_POST_INSTALL_CMD += ; ln -sf /vendor/odm/app $(TARGET_ROOT_OUT)/odm/app
 LOCAL_POST_INSTALL_CMD += ; ln -sf /vendor/odm/bin $(TARGET_ROOT_OUT)/odm/bin
 LOCAL_POST_INSTALL_CMD += ; ln -sf /vendor/odm/etc $(TARGET_ROOT_OUT)/odm/etc
 LOCAL_POST_INSTALL_CMD += ; ln -sf /vendor/odm/firmware $(TARGET_ROOT_OUT)/odm/firmware
 LOCAL_POST_INSTALL_CMD += ; ln -sf /vendor/odm/framework $(TARGET_ROOT_OUT)/odm/framework
 LOCAL_POST_INSTALL_CMD += ; ln -sf /vendor/odm/lib $(TARGET_ROOT_OUT)/odm/lib
 LOCAL_POST_INSTALL_CMD += ; ln -sf /vendor/odm/lib64 $(TARGET_ROOT_OUT)/odm/lib64
 LOCAL_POST_INSTALL_CMD += ; ln -sf /vendor/odm/overlay $(TARGET_ROOT_OUT)/odm/overlay
 LOCAL_POST_INSTALL_CMD += ; ln -sf /vendor/odm/priv-app $(TARGET_ROOT_OUT)/odm/priv-app
 LOCAL_POST_INSTALL_CMD += ; ln -sf /vendor/odm/usr $(TARGET_ROOT_OUT)/odm/usr


 # For /vendor_dlkm partition.
 LOCAL_POST_INSTALL_CMD += ; mkdir -p $(TARGET_ROOT_OUT)/vendor_dlkm
 # For Treble Generic System Image (GSI), system-as-root GSI needs to work on
 # both devices with and without /vendor_dlkm partition. Those symlinks are for
 # devices without /vendor_dlkm partition. For devices with /vendor_dlkm
 # partition, mount vendor_dlkm.img under /vendor_dlkm will hide those symlinks.
 # Note that /vendor_dlkm/lib is omitted because vendor DLKMs should be accessed
 # via /vendor/lib/modules directly.
 LOCAL_POST_INSTALL_CMD += ; ln -sf /vendor/vendor_dlkm/etc $(TARGET_ROOT_OUT)/vendor_dlkm/etc

 # For /odm_dlkm partition.
 LOCAL_POST_INSTALL_CMD += ; mkdir -p $(TARGET_ROOT_OUT)/odm_dlkm
 # For Treble Generic System Image (GSI), system-as-root GSI needs to work on
 # both devices with and without /odm_dlkm partition. Those symlinks are for
 # devices without /odm_dlkm partition. For devices with /odm_dlkm
 # partition, mount odm_dlkm.img under /odm_dlkm will hide those symlinks.
 # Note that /odm_dlkm/lib is omitted because odm DLKMs should be accessed
 # via /odm/lib/modules directly.
 LOCAL_POST_INSTALL_CMD += ; ln -sf /odm/odm_dlkm/etc $(TARGET_ROOT_OUT)/odm_dlkm/etc

 ifdef BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE
   LOCAL_POST_INSTALL_CMD += ; mkdir -p $(TARGET_ROOT_OUT)/cache
 else
   LOCAL_POST_INSTALL_CMD += ; ln -sf /data/cache $(TARGET_ROOT_OUT)/cache
 endif
 ifdef BOARD_ROOT_EXTRA_SYMLINKS
 # BOARD_ROOT_EXTRA_SYMLINKS is a list of <target>:<link_name>.
   LOCAL_POST_INSTALL_CMD += $(foreach s, $(BOARD_ROOT_EXTRA_SYMLINKS),\
     $(eval p := $(subst :,$(space),$(s)))\
     ; mkdir -p $(dir $(TARGET_ROOT_OUT)/$(word 2,$(p))) \
     ; ln -sf $(word 1,$(p)) $(TARGET_ROOT_OUT)/$(word 2,$(p)))
 endif

 # The init symlink must be a post install command of a file that is to TARGET_ROOT_OUT.
 # Since init.environ.rc is required for init and satisfies that requirement, we hijack it to create the symlink.
 LOCAL_POST_INSTALL_CMD += ; ln -sf /system/bin/init $(TARGET_ROOT_OUT)/init

 include $(BUILD_SYSTEM)/base_rules.mk

 $(LOCAL_BUILT_MODULE): $(LOCAL_PATH)/init.environ.rc.in
 	@echo "Generate: $< -> $@"
 	@mkdir -p $(dir $@)
 	$(hide) cp $< $@
 	$(hide) sed -i -e 's?%EXPORT_GLOBAL_ASAN_OPTIONS%?$(EXPORT_GLOBAL_ASAN_OPTIONS)?g' $@
 	$(hide) sed -i -e 's?%EXPORT_GLOBAL_GCOV_OPTIONS%?$(EXPORT_GLOBAL_GCOV_OPTIONS)?g' $@
 	$(hide) sed -i -e 's?%EXPORT_GLOBAL_CLANG_COVERAGE_OPTIONS%?$(EXPORT_GLOBAL_CLANG_COVERAGE_OPTIONS)?g' $@
 	$(hide) sed -i -e 's?%EXPORT_GLOBAL_HWASAN_OPTIONS%?$(EXPORT_GLOBAL_HWASAN_OPTIONS)?g' $@

 # Append PLATFORM_VNDK_VERSION to base name.
 define append_vndk_version
 $(strip \
   $(basename $(1)).$(PLATFORM_VNDK_VERSION)$(suffix $(1)) \
 )
 endef

 #######################################
 # /etc/classpath
 include $(CLEAR_VARS)
 LOCAL_MODULE := etc_classpath
 LOCAL_MODULE_CLASS := ETC
 LOCAL_MODULE_PATH := $(TARGET_OUT_ETC)
 LOCAL_MODULE_STEM := classpath
 include $(BUILD_SYSTEM)/base_rules.mk
 $(LOCAL_BUILT_MODULE):
 	@echo "Generate: $@"
 	@mkdir -p $(dir $@)
 	$(hide) echo "export BOOTCLASSPATH $(PRODUCT_BOOTCLASSPATH)" > $@
 	$(hide) echo "export DEX2OATBOOTCLASSPATH $(PRODUCT_DEX2OAT_BOOTCLASSPATH)" >> $@
 	$(hide) echo "export SYSTEMSERVERCLASSPATH $(PRODUCT_SYSTEM_SERVER_CLASSPATH)" >> $@

 #######################################
 # sanitizer.libraries.txt
 include $(CLEAR_VARS)
 LOCAL_MODULE := sanitizer.libraries.txt
 LOCAL_LICENSE_KINDS := SPDX-license-identifier-Apache-2.0
 LOCAL_LICENSE_CONDITIONS := notice
 LOCAL_MODULE_CLASS := ETC
 LOCAL_MODULE_PATH := $(TARGET_OUT_ETC)
 LOCAL_MODULE_STEM := $(LOCAL_MODULE)
 include $(BUILD_SYSTEM)/base_rules.mk
 $(LOCAL_BUILT_MODULE): PRIVATE_SANITIZER_RUNTIME_LIBRARIES := $(addsuffix .so,\
   $(ADDRESS_SANITIZER_RUNTIME_LIBRARY) \
   $(HWADDRESS_SANITIZER_RUNTIME_LIBRARY) \
   $(UBSAN_RUNTIME_LIBRARY) \
   $(TSAN_RUNTIME_LIBRARY) \
   $(2ND_ADDRESS_SANITIZER_RUNTIME_LIBRARY) \
   $(2ND_HWADDRESS_SANITIZER_RUNTIME_LIBRARY) \
   $(2ND_UBSAN_RUNTIME_LIBRARY) \
   $(2ND_TSAN_RUNTIME_LIBRARY))
 $(LOCAL_BUILT_MODULE):
 	@echo "Generate: $@"
 	@mkdir -p $(dir $@)
 	$(hide) echo -n > $@
 	$(hide) $(foreach lib,$(PRIVATE_SANITIZER_RUNTIME_LIBRARIES), \
 		echo $(lib) >> $@;)

 #######################################
 # adb_debug.prop in debug ramdisk
 include $(CLEAR_VARS)
 LOCAL_MODULE := adb_debug.prop
 LOCAL_LICENSE_KINDS := SPDX-license-identifier-Apache-2.0
 LOCAL_LICENSE_CONDITIONS := notice
 LOCAL_SRC_FILES := $(LOCAL_MODULE)
 LOCAL_MODULE_CLASS := ETC
 LOCAL_MODULE_PATH := $(TARGET_DEBUG_RAMDISK_OUT)
 include $(BUILD_PREBUILT)

 include $(call all-makefiles-under,$(LOCAL_PATH))
	LOCAL_PATH:= $(call my-dir)

	#######################################
	# init-debug.rc
	include $(CLEAR_VARS)

	LOCAL_MODULE := init-debug.rc
	LOCAL_LICENSE_KINDS := SPDX-license-identifier-Apache-2.0
	LOCAL_LICENSE_CONDITIONS := notice
	LOCAL_SRC_FILES := $(LOCAL_MODULE)
	LOCAL_MODULE_CLASS := ETC
	LOCAL_MODULE_PATH := $(TARGET_OUT_ETC)/init

	include $(BUILD_PREBUILT)

	#######################################
	# asan.options
	ifneq ($(filter address,$(SANITIZE_TARGET)),)

	include $(CLEAR_VARS)

	LOCAL_MODULE := asan.options
	LOCAL_LICENSE_KINDS := SPDX-license-identifier-Apache-2.0
	LOCAL_LICENSE_CONDITIONS := notice
	LOCAL_MODULE_CLASS := ETC
	LOCAL_SRC_FILES := $(LOCAL_MODULE)
	LOCAL_MODULE_PATH := $(TARGET_OUT)

	include $(BUILD_PREBUILT)

	# ASAN extration.
	ASAN_EXTRACT_FILES :=
	ifeq ($(SANITIZE_TARGET_SYSTEM),true)
	include $(CLEAR_VARS)
	LOCAL_MODULE:= asan_extract
	LOCAL_LICENSE_KINDS:= SPDX-license-identifier-Apache-2.0
	LOCAL_LICENSE_CONDITIONS:= notice
	LOCAL_MODULE_TAGS := optional
	LOCAL_MODULE_CLASS := EXECUTABLES
	LOCAL_SRC_FILES := asan_extract.sh
	LOCAL_INIT_RC := asan_extract.rc
	# We need bzip2 on device for extraction.
	LOCAL_REQUIRED_MODULES := bzip2
	include $(BUILD_PREBUILT)
	ASAN_EXTRACT_FILES := asan_extract
	endif

	endif

	#######################################
	# init.environ.rc

	include $(CLEAR_VARS)
	LOCAL_MODULE_CLASS := ETC
	LOCAL_MODULE := init.environ.rc
	LOCAL_LICENSE_KINDS := SPDX-license-identifier-Apache-2.0
	LOCAL_LICENSE_CONDITIONS := notice
	LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT)
	LOCAL_REQUIRED_MODULES := etc_classpath

	EXPORT_GLOBAL_ASAN_OPTIONS :=
	ifneq ($(filter address,$(SANITIZE_TARGET)),)
	EXPORT_GLOBAL_ASAN_OPTIONS := export ASAN_OPTIONS include=/system/asan.options
	LOCAL_REQUIRED_MODULES := asan.options $(ASAN_OPTIONS_FILES) $(ASAN_EXTRACT_FILES)
	endif

	EXPORT_GLOBAL_HWASAN_OPTIONS :=
	ifneq ($(filter hwaddress,$(SANITIZE_TARGET)),)
	ifneq ($(HWADDRESS_SANITIZER_GLOBAL_OPTIONS),)
	EXPORT_GLOBAL_HWASAN_OPTIONS := export HWASAN_OPTIONS $(HWADDRESS_SANITIZER_GLOBAL_OPTIONS)
	endif
	endif

	EXPORT_GLOBAL_GCOV_OPTIONS :=
	ifeq ($(NATIVE_COVERAGE),true)
	EXPORT_GLOBAL_GCOV_OPTIONS := export GCOV_PREFIX /data/misc/trace
	endif

	EXPORT_GLOBAL_CLANG_COVERAGE_OPTIONS :=
	ifeq ($(CLANG_COVERAGE),true)
	EXPORT_GLOBAL_CLANG_COVERAGE_OPTIONS := export LLVM_PROFILE_FILE /data/misc/trace/clang-%20m.profraw
	endif

	# Put it here instead of in init.rc module definition,
	# because init.rc is conditionally included.
	#
	# create some directories (some are mount points) and symlinks
	LOCAL_POST_INSTALL_CMD := mkdir -p $(addprefix $(TARGET_ROOT_OUT)/, \
	dev proc sys system data data_mirror odm oem acct config storage mnt apex debug_ramdisk \
	linkerconfig second_stage_resources postinstall $(BOARD_ROOT_EXTRA_FOLDERS)); \
	ln -sf /system/bin $(TARGET_ROOT_OUT)/bin; \
	ln -sf /system/etc $(TARGET_ROOT_OUT)/etc; \
	ln -sf /data/user_de/0/com.android.shell/files/bugreports $(TARGET_ROOT_OUT)/bugreports; \
	ln -sfn /sys/kernel/debug $(TARGET_ROOT_OUT)/d; \
	ln -sf /storage/self/primary $(TARGET_ROOT_OUT)/sdcard
	ifdef BOARD_USES_VENDORIMAGE
	LOCAL_POST_INSTALL_CMD += ; mkdir -p $(TARGET_ROOT_OUT)/vendor
	else
	LOCAL_POST_INSTALL_CMD += ; ln -sf /system/vendor $(TARGET_ROOT_OUT)/vendor
	endif
	ifdef BOARD_USES_PRODUCTIMAGE
	LOCAL_POST_INSTALL_CMD += ; mkdir -p $(TARGET_ROOT_OUT)/product
	else
	LOCAL_POST_INSTALL_CMD += ; ln -sf /system/product $(TARGET_ROOT_OUT)/product
	endif
	ifdef BOARD_USES_SYSTEM_EXTIMAGE
	LOCAL_POST_INSTALL_CMD += ; mkdir -p $(TARGET_ROOT_OUT)/system_ext
	else
	LOCAL_POST_INSTALL_CMD += ; ln -sf /system/system_ext $(TARGET_ROOT_OUT)/system_ext
	endif
	ifdef BOARD_USES_METADATA_PARTITION
	LOCAL_POST_INSTALL_CMD += ; mkdir -p $(TARGET_ROOT_OUT)/metadata
	endif

	# For /odm partition.
	LOCAL_POST_INSTALL_CMD += ; mkdir -p $(TARGET_ROOT_OUT)/odm
	# For Treble Generic System Image (GSI), system-as-root GSI needs to work on
	# both devices with and without /odm partition. Those symlinks are for devices
	# without /odm partition. For devices with /odm partition, mount odm.img under
	# /odm will hide those symlinks.
	LOCAL_POST_INSTALL_CMD += ; ln -sf /vendor/odm/app $(TARGET_ROOT_OUT)/odm/app
	LOCAL_POST_INSTALL_CMD += ; ln -sf /vendor/odm/bin $(TARGET_ROOT_OUT)/odm/bin
	LOCAL_POST_INSTALL_CMD += ; ln -sf /vendor/odm/etc $(TARGET_ROOT_OUT)/odm/etc
	LOCAL_POST_INSTALL_CMD += ; ln -sf /vendor/odm/firmware $(TARGET_ROOT_OUT)/odm/firmware
	LOCAL_POST_INSTALL_CMD += ; ln -sf /vendor/odm/framework $(TARGET_ROOT_OUT)/odm/framework
	LOCAL_POST_INSTALL_CMD += ; ln -sf /vendor/odm/lib $(TARGET_ROOT_OUT)/odm/lib
	LOCAL_POST_INSTALL_CMD += ; ln -sf /vendor/odm/lib64 $(TARGET_ROOT_OUT)/odm/lib64
	LOCAL_POST_INSTALL_CMD += ; ln -sf /vendor/odm/overlay $(TARGET_ROOT_OUT)/odm/overlay
	LOCAL_POST_INSTALL_CMD += ; ln -sf /vendor/odm/priv-app $(TARGET_ROOT_OUT)/odm/priv-app
	LOCAL_POST_INSTALL_CMD += ; ln -sf /vendor/odm/usr $(TARGET_ROOT_OUT)/odm/usr


	# For /vendor_dlkm partition.
	LOCAL_POST_INSTALL_CMD += ; mkdir -p $(TARGET_ROOT_OUT)/vendor_dlkm
	# For Treble Generic System Image (GSI), system-as-root GSI needs to work on
	# both devices with and without /vendor_dlkm partition. Those symlinks are for
	# devices without /vendor_dlkm partition. For devices with /vendor_dlkm
	# partition, mount vendor_dlkm.img under /vendor_dlkm will hide those symlinks.
	# Note that /vendor_dlkm/lib is omitted because vendor DLKMs should be accessed
	# via /vendor/lib/modules directly.
	LOCAL_POST_INSTALL_CMD += ; ln -sf /vendor/vendor_dlkm/etc $(TARGET_ROOT_OUT)/vendor_dlkm/etc

	# For /odm_dlkm partition.
	LOCAL_POST_INSTALL_CMD += ; mkdir -p $(TARGET_ROOT_OUT)/odm_dlkm
	# For Treble Generic System Image (GSI), system-as-root GSI needs to work on
	# both devices with and without /odm_dlkm partition. Those symlinks are for
	# devices without /odm_dlkm partition. For devices with /odm_dlkm
	# partition, mount odm_dlkm.img under /odm_dlkm will hide those symlinks.
	# Note that /odm_dlkm/lib is omitted because odm DLKMs should be accessed
	# via /odm/lib/modules directly.
	LOCAL_POST_INSTALL_CMD += ; ln -sf /odm/odm_dlkm/etc $(TARGET_ROOT_OUT)/odm_dlkm/etc

	ifdef BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE
	LOCAL_POST_INSTALL_CMD += ; mkdir -p $(TARGET_ROOT_OUT)/cache
	else
	LOCAL_POST_INSTALL_CMD += ; ln -sf /data/cache $(TARGET_ROOT_OUT)/cache
	endif
	ifdef BOARD_ROOT_EXTRA_SYMLINKS
	# BOARD_ROOT_EXTRA_SYMLINKS is a list of <target>:<link_name>.
	LOCAL_POST_INSTALL_CMD += $(foreach s, $(BOARD_ROOT_EXTRA_SYMLINKS),\
	$(eval p := $(subst :,$(space),$(s)))\
	; mkdir -p $(dir $(TARGET_ROOT_OUT)/$(word 2,$(p))) \
	; ln -sf $(word 1,$(p)) $(TARGET_ROOT_OUT)/$(word 2,$(p)))
	endif

	# The init symlink must be a post install command of a file that is to TARGET_ROOT_OUT.
	# Since init.environ.rc is required for init and satisfies that requirement, we hijack it to create the symlink.
	LOCAL_POST_INSTALL_CMD += ; ln -sf /system/bin/init $(TARGET_ROOT_OUT)/init

	include $(BUILD_SYSTEM)/base_rules.mk

	$(LOCAL_BUILT_MODULE): $(LOCAL_PATH)/init.environ.rc.in
	@echo "Generate: $< -> $@"
	@mkdir -p $(dir $@)
	$(hide) cp $< $@
	$(hide) sed -i -e 's?%EXPORT_GLOBAL_ASAN_OPTIONS%?$(EXPORT_GLOBAL_ASAN_OPTIONS)?g' $@
	$(hide) sed -i -e 's?%EXPORT_GLOBAL_GCOV_OPTIONS%?$(EXPORT_GLOBAL_GCOV_OPTIONS)?g' $@
	$(hide) sed -i -e 's?%EXPORT_GLOBAL_CLANG_COVERAGE_OPTIONS%?$(EXPORT_GLOBAL_CLANG_COVERAGE_OPTIONS)?g' $@
	$(hide) sed -i -e 's?%EXPORT_GLOBAL_HWASAN_OPTIONS%?$(EXPORT_GLOBAL_HWASAN_OPTIONS)?g' $@

	# Append PLATFORM_VNDK_VERSION to base name.
	define append_vndk_version
	$(strip \
	$(basename $(1)).$(PLATFORM_VNDK_VERSION)$(suffix $(1)) \
	)
	endef

	#######################################
	# /etc/classpath
	include $(CLEAR_VARS)
	LOCAL_MODULE := etc_classpath
	LOCAL_MODULE_CLASS := ETC
	LOCAL_MODULE_PATH := $(TARGET_OUT_ETC)
	LOCAL_MODULE_STEM := classpath
	include $(BUILD_SYSTEM)/base_rules.mk
	$(LOCAL_BUILT_MODULE):
	@echo "Generate: $@"
	@mkdir -p $(dir $@)
	$(hide) echo "export BOOTCLASSPATH $(PRODUCT_BOOTCLASSPATH)" > $@
	$(hide) echo "export DEX2OATBOOTCLASSPATH $(PRODUCT_DEX2OAT_BOOTCLASSPATH)" >> $@
	$(hide) echo "export SYSTEMSERVERCLASSPATH $(PRODUCT_SYSTEM_SERVER_CLASSPATH)" >> $@

	#######################################
	# sanitizer.libraries.txt
	include $(CLEAR_VARS)
	LOCAL_MODULE := sanitizer.libraries.txt
	LOCAL_LICENSE_KINDS := SPDX-license-identifier-Apache-2.0
	LOCAL_LICENSE_CONDITIONS := notice
	LOCAL_MODULE_CLASS := ETC
	LOCAL_MODULE_PATH := $(TARGET_OUT_ETC)
	LOCAL_MODULE_STEM := $(LOCAL_MODULE)
	include $(BUILD_SYSTEM)/base_rules.mk
	$(LOCAL_BUILT_MODULE): PRIVATE_SANITIZER_RUNTIME_LIBRARIES := $(addsuffix .so,\
	$(ADDRESS_SANITIZER_RUNTIME_LIBRARY) \
	$(HWADDRESS_SANITIZER_RUNTIME_LIBRARY) \
	$(UBSAN_RUNTIME_LIBRARY) \
	$(TSAN_RUNTIME_LIBRARY) \
	$(2ND_ADDRESS_SANITIZER_RUNTIME_LIBRARY) \
	$(2ND_HWADDRESS_SANITIZER_RUNTIME_LIBRARY) \
	$(2ND_UBSAN_RUNTIME_LIBRARY) \
	$(2ND_TSAN_RUNTIME_LIBRARY))
	$(LOCAL_BUILT_MODULE):
	@echo "Generate: $@"
	@mkdir -p $(dir $@)
	$(hide) echo -n > $@
	$(hide) $(foreach lib,$(PRIVATE_SANITIZER_RUNTIME_LIBRARIES), \
	echo $(lib) >> $@;)

	#######################################
	# adb_debug.prop in debug ramdisk
	include $(CLEAR_VARS)
	LOCAL_MODULE := adb_debug.prop
	LOCAL_LICENSE_KINDS := SPDX-license-identifier-Apache-2.0
	LOCAL_LICENSE_CONDITIONS := notice
	LOCAL_SRC_FILES := $(LOCAL_MODULE)
	LOCAL_MODULE_CLASS := ETC
	LOCAL_MODULE_PATH := $(TARGET_DEBUG_RAMDISK_OUT)
	include $(BUILD_PREBUILT)

	include $(call all-makefiles-under,$(LOCAL_PATH))