core/main.mk

# Only use ANDROID_BUILD_SHELL to wrap around bash.
# DO NOT use other shells such as zsh.
ifdef ANDROID_BUILD_SHELL
SHELL := $(ANDROID_BUILD_SHELL)
else
# Use bash, not whatever shell somebody has installed as /bin/sh
# This is repeated in config.mk, since envsetup.sh runs that file
# directly.
SHELL := /bin/bash
endif

ifndef KATI

host_prebuilts := linux-x86
ifeq ($(shell uname),Darwin)
host_prebuilts := darwin-x86
endif

.PHONY: run_soong_ui
run_soong_ui:
	+@prebuilts/build-tools/$(host_prebuilts)/bin/makeparallel --ninja build/soong/soong_ui.bash --make-mode $(MAKECMDGOALS)

.PHONY: $(MAKECMDGOALS)
$(sort $(MAKECMDGOALS)) : run_soong_ui
	@#empty

else # KATI

$(info [1/1] initializing build system ...)

# Absolute path of the present working direcotry.
# This overrides the shell variable $PWD, which does not necessarily points to
# the top of the source tree, for example when "make -C" is used in m/mm/mmm.
PWD := $(shell pwd)

TOP := .
TOPDIR :=

# This is the default target.  It must be the first declared target.
.PHONY: droid
DEFAULT_GOAL := droid
$(DEFAULT_GOAL): droid_targets

.PHONY: droid_targets
droid_targets:

# Set up various standard variables based on configuration
# and host information.
include build/make/core/config.mk

ifneq ($(filter $(dont_bother_goals), $(MAKECMDGOALS)),)
dont_bother := true
endif

.KATI_READONLY := SOONG_CONFIG_NAMESPACES
.KATI_READONLY := $(foreach n,$(SOONG_CONFIG_NAMESPACES),SOONG_CONFIG_$(n))
.KATI_READONLY := $(foreach n,$(SOONG_CONFIG_NAMESPACES),$(foreach k,$(SOONG_CONFIG_$(n)),SOONG_CONFIG_$(n)_$(k)))

include $(SOONG_MAKEVARS_MK)

include $(BUILD_SYSTEM)/clang/config.mk

# Write the build number to a file so it can be read back in
# without changing the command line every time.  Avoids rebuilds
# when using ninja.
$(shell mkdir -p $(OUT_DIR) && \
    echo -n $(BUILD_NUMBER) > $(OUT_DIR)/build_number.txt)
BUILD_NUMBER_FILE := $(OUT_DIR)/build_number.txt
.KATI_READONLY := BUILD_NUMBER_FILE
$(KATI_obsolete_var BUILD_NUMBER,See https://android.googlesource.com/platform/build/+/master/Changes.md#BUILD_NUMBER)

ifeq ($(HOST_OS),darwin)
DATE_FROM_FILE := date -r $(BUILD_DATETIME_FROM_FILE)
else
DATE_FROM_FILE := date -d @$(BUILD_DATETIME_FROM_FILE)
endif
.KATI_READONLY := DATE_FROM_FILE

# Pick a reasonable string to use to identify files.
ifeq ($(strip $(HAS_BUILD_NUMBER)),false)
  # BUILD_NUMBER has a timestamp in it, which means that
  # it will change every time.  Pick a stable value.
  FILE_NAME_TAG := eng.$(BUILD_USERNAME)
else
  FILE_NAME_TAG := $(file <$(BUILD_NUMBER_FILE))
endif
.KATI_READONLY := FILE_NAME_TAG

# Make an empty directory, which can be used to make empty jars
EMPTY_DIRECTORY := $(OUT_DIR)/empty
$(shell mkdir -p $(EMPTY_DIRECTORY) && rm -rf $(EMPTY_DIRECTORY)/*)

# CTS-specific config.
-include cts/build/config.mk
# VTS-specific config.
-include test/vts/tools/vts-tradefed/build/config.mk
# device-tests-specific-config.
-include tools/tradefederation/build/suites/device-tests/config.mk
# general-tests-specific-config.
-include tools/tradefederation/build/suites/general-tests/config.mk
# STS-specific config.
-include test/sts/tools/sts-tradefed/build/config.mk
# CTS-Instant-specific config
-include test/suite_harness/tools/cts-instant-tradefed/build/config.mk

# Clean rules
.PHONY: clean-dex-files
clean-dex-files:
	$(hide) find $(OUT_DIR) -name "*.dex" | xargs rm -f
	$(hide) for i in `find $(OUT_DIR) -name "*.jar" -o -name "*.apk"` ; do ((unzip -l $$i 2> /dev/null | \
				grep -q "\.dex$$" && rm -f $$i) || continue ) ; done
	@echo "All dex files and archives containing dex files have been removed."

# Include the google-specific config
-include vendor/google/build/config.mk

# These are the modifier targets that don't do anything themselves, but
# change the behavior of the build.
# (must be defined before including definitions.make)
INTERNAL_MODIFIER_TARGETS := all

# EMMA_INSTRUMENT_STATIC merges the static jacoco library to each
# jacoco-enabled module.
ifeq (true,$(EMMA_INSTRUMENT_STATIC))
EMMA_INSTRUMENT := true
endif

ifeq (true,$(EMMA_INSTRUMENT))
# Adding the jacoco library can cause the inclusion of
# some typically banned classes
# So if the user didn't specify SKIP_BOOT_JARS_CHECK, enable it here
ifndef SKIP_BOOT_JARS_CHECK
SKIP_BOOT_JARS_CHECK := true
endif
endif

#
# -----------------------------------------------------------------
# Validate ADDITIONAL_DEFAULT_PROPERTIES.
ifneq ($(ADDITIONAL_DEFAULT_PROPERTIES),)
$(error ADDITIONAL_DEFAULT_PROPERTIES must not be set before here: $(ADDITIONAL_DEFAULT_PROPERTIES))
endif

#
# -----------------------------------------------------------------
# Validate ADDITIONAL_BUILD_PROPERTIES.
ifneq ($(ADDITIONAL_BUILD_PROPERTIES),)
$(error ADDITIONAL_BUILD_PROPERTIES must not be set before here: $(ADDITIONAL_BUILD_PROPERTIES))
endif

ADDITIONAL_BUILD_PROPERTIES :=

#
# -----------------------------------------------------------------
# Validate ADDITIONAL_PRODUCT_PROPERTIES.
ifneq ($(ADDITIONAL_PRODUCT_PROPERTIES),)
$(error ADDITIONAL_PRODUCT_PROPERTIES must not be set before here: $(ADDITIONAL_PRODUCT_PROPERTIES))
endif

ADDITIONAL_PRODUCT_PROPERTIES :=

#
# -----------------------------------------------------------------
# Add the product-defined properties to the build properties.
ifdef PRODUCT_SHIPPING_API_LEVEL
ADDITIONAL_BUILD_PROPERTIES += \
  ro.product.first_api_level=$(PRODUCT_SHIPPING_API_LEVEL)
endif

ifneq ($(BOARD_PROPERTY_OVERRIDES_SPLIT_ENABLED), true)
  ADDITIONAL_BUILD_PROPERTIES += $(PRODUCT_PROPERTY_OVERRIDES)
else
  ifndef BOARD_VENDORIMAGE_FILE_SYSTEM_TYPE
    ADDITIONAL_BUILD_PROPERTIES += $(PRODUCT_PROPERTY_OVERRIDES)
  endif
endif


# Bring in standard build system definitions.
include $(BUILD_SYSTEM)/definitions.mk

# Bring in dex_preopt.mk
include $(BUILD_SYSTEM)/dex_preopt.mk

ifneq ($(filter user userdebug eng,$(MAKECMDGOALS)),)
$(info ***************************************************************)
$(info ***************************************************************)
$(info Do not pass '$(filter user userdebug eng,$(MAKECMDGOALS))' on \
       the make command line.)
$(info Set TARGET_BUILD_VARIANT in buildspec.mk, or use lunch or)
$(info choosecombo.)
$(info ***************************************************************)
$(info ***************************************************************)
$(error stopping)
endif

# These are the valid values of TARGET_BUILD_VARIANT.
INTERNAL_VALID_VARIANTS := user userdebug eng
ifneq ($(filter-out $(INTERNAL_VALID_VARIANTS),$(TARGET_BUILD_VARIANT)),)
$(info ***************************************************************)
$(info ***************************************************************)
$(info Invalid variant: $(TARGET_BUILD_VARIANT))
$(info Valid values are: $(INTERNAL_VALID_VARIANTS))
$(info ***************************************************************)
$(info ***************************************************************)
$(error stopping)
endif

# -----------------------------------------------------------------
# Variable to check java support level inside PDK build.
# Not necessary if the components is not in PDK.
# not defined : not supported
# "sdk" : sdk API only
# "platform" : platform API supproted
TARGET_BUILD_JAVA_SUPPORT_LEVEL := platform

# -----------------------------------------------------------------
# The pdk (Platform Development Kit) build
include build/make/core/pdk_config.mk

#
# -----------------------------------------------------------------
# Enable dynamic linker warnings for userdebug, eng and non-REL builds
ifneq ($(TARGET_BUILD_VARIANT),user)
  ADDITIONAL_BUILD_PROPERTIES += ro.bionic.ld.warning=1
else
# Enable it for user builds as long as they are not final.
ifneq ($(PLATFORM_VERSION_CODENAME),REL)
  ADDITIONAL_BUILD_PROPERTIES += ro.bionic.ld.warning=1
endif
endif

ADDITIONAL_BUILD_PROPERTIES += ro.treble.enabled=${PRODUCT_FULL_TREBLE}

$(KATI_obsolete_var PRODUCT_FULL_TREBLE,\
	Code should be written to work regardless of a device being Treble or \
	variables like PRODUCT_SEPOLICY_SPLIT should be used until that is \
	possible.)

# Sets ro.actionable_compatible_property.enabled to know on runtime whether the whitelist
# of actionable compatible properties is enabled or not.
ifeq ($(PRODUCT_ACTIONABLE_COMPATIBLE_PROPERTY_DISABLE),true)
ADDITIONAL_DEFAULT_PROPERTIES += ro.actionable_compatible_property.enabled=false
else
ADDITIONAL_DEFAULT_PROPERTIES += ro.actionable_compatible_property.enabled=${PRODUCT_COMPATIBLE_PROPERTY}
endif

# Add the system server compiler filter if they are specified for the product.
ifneq (,$(PRODUCT_SYSTEM_SERVER_COMPILER_FILTER))
ADDITIONAL_PRODUCT_PROPERTIES += dalvik.vm.systemservercompilerfilter=$(PRODUCT_SYSTEM_SERVER_COMPILER_FILTER)
endif

# Enable core platform API violation warnings on userdebug and eng builds.
ifneq ($(TARGET_BUILD_VARIANT),user)
ADDITIONAL_BUILD_PROPERTIES += persist.debug.dalvik.vm.core_platform_api_policy=just-warn
endif

# Sets the default value of ro.postinstall.fstab.prefix to /system.
# Device board config should override the value to /product when needed by:
#
#     PRODUCT_PRODUCT_PROPERTIES += ro.postinstall.fstab.prefix=/product
#
# It then uses ${ro.postinstall.fstab.prefix}/etc/fstab.postinstall to
# mount system_other partition.
ADDITIONAL_DEFAULT_PROPERTIES += ro.postinstall.fstab.prefix=/system

# -----------------------------------------------------------------
###
### In this section we set up the things that are different
### between the build variants
###

is_sdk_build :=

ifneq ($(filter sdk win_sdk sdk_addon,$(MAKECMDGOALS)),)
is_sdk_build := true
endif

## user/userdebug ##

user_variant := $(filter user userdebug,$(TARGET_BUILD_VARIANT))
enable_target_debugging := true
tags_to_install :=
ifneq (,$(user_variant))
  # Target is secure in user builds.
  ADDITIONAL_DEFAULT_PROPERTIES += ro.secure=1
  ADDITIONAL_DEFAULT_PROPERTIES += security.perf_harden=1

  ifeq ($(user_variant),user)
    ADDITIONAL_DEFAULT_PROPERTIES += ro.adb.secure=1
  endif

  ifeq ($(user_variant),userdebug)
    # Pick up some extra useful tools
    tags_to_install += debug
  else
    # Disable debugging in plain user builds.
    enable_target_debugging :=
  endif

  # Disallow mock locations by default for user builds
  ADDITIONAL_DEFAULT_PROPERTIES += ro.allow.mock.location=0

else # !user_variant
  # Turn on checkjni for non-user builds.
  ADDITIONAL_BUILD_PROPERTIES += ro.kernel.android.checkjni=1
  # Set device insecure for non-user builds.
  ADDITIONAL_DEFAULT_PROPERTIES += ro.secure=0
  # Allow mock locations by default for non user builds
  ADDITIONAL_DEFAULT_PROPERTIES += ro.allow.mock.location=1
endif # !user_variant

ifeq (true,$(strip $(enable_target_debugging)))
  # Target is more debuggable and adbd is on by default
  ADDITIONAL_DEFAULT_PROPERTIES += ro.debuggable=1
  # Enable Dalvik lock contention logging.
  ADDITIONAL_BUILD_PROPERTIES += dalvik.vm.lockprof.threshold=500
else # !enable_target_debugging
  # Target is less debuggable and adbd is off by default
  ADDITIONAL_DEFAULT_PROPERTIES += ro.debuggable=0
endif # !enable_target_debugging

## eng ##

ifeq ($(TARGET_BUILD_VARIANT),eng)
tags_to_install := debug eng
ifneq ($(filter ro.setupwizard.mode=ENABLED, $(call collapse-pairs, $(ADDITIONAL_BUILD_PROPERTIES))),)
  # Don't require the setup wizard on eng builds
  ADDITIONAL_BUILD_PROPERTIES := $(filter-out ro.setupwizard.mode=%,\
          $(call collapse-pairs, $(ADDITIONAL_BUILD_PROPERTIES))) \
          ro.setupwizard.mode=OPTIONAL
endif
ifndef is_sdk_build
  # To speedup startup of non-preopted builds, don't verify or compile the boot image.
  ADDITIONAL_BUILD_PROPERTIES += dalvik.vm.image-dex2oat-filter=verify-at-runtime
endif
endif

## asan ##

# Install some additional tools on ASAN builds IFF we are also installing debug tools
ifneq ($(filter address,$(SANITIZE_TARGET)),)
ifneq (,$(filter debug,$(tags_to_install)))
  tags_to_install += asan
endif
endif

## java coverage ##
# Install additional tools on java coverage builds
ifeq (true,$(EMMA_INSTRUMENT))
ifneq (,$(filter debug,$(tags_to_install)))
  tags_to_install += java_coverage
endif
endif


## sdk ##

ifdef is_sdk_build

# Detect if we want to build a repository for the SDK
sdk_repo_goal := $(strip $(filter sdk_repo,$(MAKECMDGOALS)))
MAKECMDGOALS := $(strip $(filter-out sdk_repo,$(MAKECMDGOALS)))

ifneq ($(words $(sort $(filter-out $(INTERNAL_MODIFIER_TARGETS) checkbuild emulator_tests target-files-package,$(MAKECMDGOALS)))),1)
$(error The 'sdk' target may not be specified with any other targets)
endif

# AUX dependencies are already added by now; remove triggers from the MAKECMDGOALS
MAKECMDGOALS := $(strip $(filter-out AUX-%,$(MAKECMDGOALS)))

# TODO: this should be eng I think.  Since the sdk is built from the eng
# variant.
tags_to_install := debug eng
ADDITIONAL_BUILD_PROPERTIES += xmpp.auto-presence=true
ADDITIONAL_BUILD_PROPERTIES += ro.config.nocheckin=yes
else # !sdk
endif

BUILD_WITHOUT_PV := true

ADDITIONAL_BUILD_PROPERTIES += net.bt.name=Android

# ------------------------------------------------------------
# Define a function that, given a list of module tags, returns
# non-empty if that module should be installed in /system.

# For most goals, anything not tagged with the "tests" tag should
# be installed in /system.
define should-install-to-system
$(if $(filter tests,$(1)),,true)
endef

ifdef is_sdk_build
# For the sdk goal, anything with the "samples" tag should be
# installed in /data even if that module also has "eng"/"debug"/"user".
define should-install-to-system
$(if $(filter samples tests,$(1)),,true)
endef
endif


# If they only used the modifier goals (all, etc), we'll actually
# build the default target.
ifeq ($(filter-out $(INTERNAL_MODIFIER_TARGETS),$(MAKECMDGOALS)),)
.PHONY: $(INTERNAL_MODIFIER_TARGETS)
$(INTERNAL_MODIFIER_TARGETS): $(DEFAULT_GOAL)
endif

#
# Typical build; include any Android.mk files we can find.
#

# Strip and readonly a few more variables so they won't be modified.
$(readonly-final-product-vars)
ADDITIONAL_DEFAULT_PROPERTIES := $(strip $(ADDITIONAL_DEFAULT_PROPERTIES))
.KATI_READONLY := ADDITIONAL_DEFAULT_PROPERTIES
ADDITIONAL_BUILD_PROPERTIES := $(strip $(ADDITIONAL_BUILD_PROPERTIES))
.KATI_READONLY := ADDITIONAL_BUILD_PROPERTIES
ADDITIONAL_PRODUCT_PROPERTIES := $(strip $(ADDITIONAL_PRODUCT_PROPERTIES))
.KATI_READONLY := ADDITIONAL_PRODUCT_PROPERTIES

ifneq ($(PRODUCT_ENFORCE_RRO_TARGETS),)
ENFORCE_RRO_SOURCES :=
endif

# Color-coded warnings including current module info
# $(1): message to print
define pretty-warning
$(shell $(call echo-warning,$(LOCAL_MODULE_MAKEFILE),$(LOCAL_MODULE): $(1)))
endef

# Color-coded errors including current module info
# $(1): message to print
define pretty-error
$(shell $(call echo-error,$(LOCAL_MODULE_MAKEFILE),$(LOCAL_MODULE): $(1)))
$(error done)
endef

subdir_makefiles_inc := .
FULL_BUILD :=

ifneq ($(ONE_SHOT_MAKEFILE),)
# We've probably been invoked by the "mm" shell function
# with a subdirectory's makefile.
include $(SOONG_ANDROID_MK) $(wildcard $(ONE_SHOT_MAKEFILE))
# Change CUSTOM_MODULES to include only modules that were
# defined by this makefile; this will install all of those
# modules as a side-effect.  Do this after including ONE_SHOT_MAKEFILE
# so that the modules will be installed in the same place they
# would have been with a normal make.
CUSTOM_MODULES := $(sort $(call get-tagged-modules,$(ALL_MODULE_TAGS)))

# A helper goal printing out install paths
define register_module_install_path
.PHONY: GET-MODULE-INSTALL-PATH-$(1)
GET-MODULE-INSTALL-PATH-$(1):
	echo 'INSTALL-PATH: $(1) $(ALL_MODULES.$(1).INSTALLED)'
endef

SORTED_ALL_MODULES := $(sort $(ALL_MODULES))
UNIQUE_ALL_MODULES :=
$(foreach m,$(SORTED_ALL_MODULES),\
    $(if $(call streq,$(m),$(lastword $(UNIQUE_ALL_MODULES))),,\
        $(eval UNIQUE_ALL_MODULES += $(m))))
SORTED_ALL_MODULES :=

$(foreach mod,$(UNIQUE_ALL_MODULES),$(if $(ALL_MODULES.$(mod).INSTALLED),\
    $(eval $(call register_module_install_path,$(mod)))\
    $(foreach path,$(ALL_MODULES.$(mod).PATH),\
        $(eval my_path_prefix := GET-INSTALL-PATH-IN)\
        $(foreach component,$(subst /,$(space),$(path)),\
            $(eval my_path_prefix := $$(my_path_prefix)-$$(component))\
            $(eval .PHONY: $$(my_path_prefix))\
            $(eval $$(my_path_prefix): GET-MODULE-INSTALL-PATH-$(mod))))))
UNIQUE_ALL_MODULES :=

else # ONE_SHOT_MAKEFILE

ifneq ($(dont_bother),true)
FULL_BUILD := true
#
# Include all of the makefiles in the system
#

subdir_makefiles := $(SOONG_ANDROID_MK) $(file <$(OUT_DIR)/.module_paths/Android.mk.list)
subdir_makefiles_total := $(words int $(subdir_makefiles) post finish)
.KATI_READONLY := subdir_makefiles_total

$(foreach mk,$(subdir_makefiles),$(info [$(call inc_and_print,subdir_makefiles_inc)/$(subdir_makefiles_total)] including $(mk) ...)$(eval include $(mk)))

ifneq (,$(PDK_FUSION_PLATFORM_ZIP)$(PDK_FUSION_PLATFORM_DIR))
# Bring in the PDK platform.zip modules.
include $(BUILD_SYSTEM)/pdk_fusion_modules.mk
endif # PDK_FUSION_PLATFORM_ZIP || PDK_FUSION_PLATFORM_DIR

droid_targets : blueprint_tools

endif # dont_bother

endif # ONE_SHOT_MAKEFILE

ifndef subdir_makefiles_total
subdir_makefiles_total := $(words init post finish)
endif

droid_targets: no_vendor_variant_vndk_check
.PHONY: no_vendor_variant_vndk_check
no_vendor_variant_vndk_check:

$(info [$(call inc_and_print,subdir_makefiles_inc)/$(subdir_makefiles_total)] finishing build rules ...)

# -------------------------------------------------------------------
# All module makefiles have been included at this point.
# -------------------------------------------------------------------

# -------------------------------------------------------------------
# Use basic warning/error messages now that LOCAL_MODULE_MAKEFILE
# and LOCAL_MODULE aren't useful anymore.
# -------------------------------------------------------------------
define pretty-warning
$(warning $(1))
endef

define pretty-error
$(error $(1))
endef

# -------------------------------------------------------------------
# Enforce to generate all RRO packages for modules having resource
# overlays.
# -------------------------------------------------------------------
ifneq ($(PRODUCT_ENFORCE_RRO_TARGETS),)
$(call generate_all_enforce_rro_packages)
endif

# -------------------------------------------------------------------
# Fix up CUSTOM_MODULES to refer to installed files rather than
# just bare module names.  Leave unknown modules alone in case
# they're actually full paths to a particular file.
known_custom_modules := $(filter $(ALL_MODULES),$(CUSTOM_MODULES))
unknown_custom_modules := $(filter-out $(ALL_MODULES),$(CUSTOM_MODULES))
CUSTOM_MODULES := \
	$(call module-installed-files,$(known_custom_modules)) \
	$(unknown_custom_modules)

# -------------------------------------------------------------------
# Define dependencies for modules that require other modules.
# This can only happen now, after we've read in all module makefiles.
#
# TODO: deal with the fact that a bare module name isn't
# unambiguous enough.  Maybe declare short targets like
# APPS:Quake or HOST:SHARED_LIBRARIES:libutils.
# BUG: the system image won't know to depend on modules that are
# brought in as requirements of other modules.
#
# Resolve the required module name to 32-bit or 64-bit variant.
# Get a list of corresponding 32-bit module names, if one exists.
ifneq ($(TARGET_TRANSLATE_2ND_ARCH),true)
define get-32-bit-modules
$(sort $(foreach m,$(1),\
  $(if $(ALL_MODULES.$(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX).CLASS),\
    $(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX))))
endef
# Get a list of corresponding 32-bit module names, if one exists;
# otherwise return the original module name
define get-32-bit-modules-if-we-can
$(sort $(foreach m,$(1),\
  $(if $(ALL_MODULES.$(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX).CLASS),\
    $(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX), \
    $(m))))
endef
else  # TARGET_TRANSLATE_2ND_ARCH
# For binary translation config, by default only install the first arch.
define get-32-bit-modules
endef

define get-32-bit-modules-if-we-can
$(strip $(1))
endef
endif  # TARGET_TRANSLATE_2ND_ARCH

# TODO: we can probably check to see if these modules are actually host
# modules
define get-host-32-bit-modules
$(sort $(foreach m,$(1),\
  $(if $(ALL_MODULES.$(m)$(HOST_2ND_ARCH_MODULE_SUFFIX).CLASS),\
    $(m)$(HOST_2ND_ARCH_MODULE_SUFFIX))))
endef
# Get a list of corresponding 32-bit module names, if one exists;
# otherwise return the original module name
define get-host-32-bit-modules-if-we-can
$(sort $(foreach m,$(1),\
  $(if $(ALL_MODULES.$(m)$(HOST_2ND_ARCH_MODULE_SUFFIX).CLASS),\
    $(m)$(HOST_2ND_ARCH_MODULE_SUFFIX),\
    $(m))))
endef

# If a module is for a cross host os, the required modules must be for
# that OS too.
# If a module is built for 32-bit, the required modules must be 32-bit too;
# Otherwise if the module is an executable or shared library,
#   the required modules must be 64-bit;
#   otherwise we require both 64-bit and 32-bit variant, if one exists.
define target-select-bitness-of-required-modules
$(foreach m,$(ALL_MODULES),\
  $(eval r := $(ALL_MODULES.$(m).REQUIRED_FROM_TARGET))\
  $(if $(r),\
    $(if $(ALL_MODULES.$(m).FOR_2ND_ARCH),\
      $(eval r_r := $(call get-32-bit-modules-if-we-can,$(r))),\
      $(if $(filter EXECUTABLES SHARED_LIBRARIES NATIVE_TESTS,$(ALL_MODULES.$(m).CLASS)),\
        $(eval r_r := $(r)),\
        $(eval r_r := $(r) $(call get-32-bit-modules,$(r)))\
       )\
     )\
     $(eval ALL_MODULES.$(m).REQUIRED_FROM_TARGET := $(strip $(r_r)))\
  )\
)
endef
$(call target-select-bitness-of-required-modules)

define host-select-bitness-of-required-modules
$(foreach m,$(ALL_MODULES),\
  $(eval r := $(ALL_MODULES.$(m).REQUIRED_FROM_HOST))\
  $(if $(r),\
    $(if $(ALL_MODULES.$(m).FOR_2ND_ARCH),\
      $(eval r_r := $(call get-host-32-bit-modules-if-we-can,$(r))),\
      $(if $(filter EXECUTABLES SHARED_LIBRARIES NATIVE_TESTS,$(ALL_MODULES.$(m).CLASS)),\
        $(eval r_r := $(r)),\
        $(eval r_r := $(r) $(call get-host-32-bit-modules,$(r)))\
       )\
     )\
     $(eval ALL_MODULES.$(m).REQUIRED_FROM_HOST := $(strip $(r_r)))\
  )\
)
endef
$(call host-select-bitness-of-required-modules)

define host-cross-select-bitness-of-required-modules
$(foreach m,$(ALL_MODULES),\
  $(eval r := $(ALL_MODULES.$(m).REQUIRED_FROM_HOST_CROSS))\
  $(if $(r),\
    $(if $(ALL_MODULES.$(m).FOR_HOST_CROSS),,$(error Only expected REQUIRED_FROM_HOST_CROSS on FOR_HOST_CROSS modules - $(m)))\
    $(eval r := $(addprefix host_cross_,$(r)))\
    $(if $(ALL_MODULES.$(m).FOR_2ND_ARCH),\
      $(eval r_r := $(call get-host-32-bit-modules-if-we-can,$(r))),\
      $(if $(filter EXECUTABLES SHARED_LIBRARIES NATIVE_TESTS,$(ALL_MODULES.$(m).CLASS)),\
        $(eval r_r := $(r)),\
        $(eval r_r := $(r) $(call get-host-32-bit-modules,$(r)))\
       )\
     )\
     $(eval ALL_MODULES.$(m).REQUIRED_FROM_HOST_CROSS := $(strip $(r_r)))\
  )\
)
endef
$(call host-cross-select-bitness-of-required-modules)
r_r :=

define add-required-deps
$(1): | $(2)
endef

# Use a normal dependency instead of an order-only dependency when installing
# host dynamic binaries so that the timestamp of the final binary always
# changes, even if the toc optimization has skipped relinking the binary
# and its dependant shared libraries.
define add-required-host-so-deps
$(1): $(2)
endef

# Sets up dependencies such that whenever a host module is installed,
# any other host modules listed in $(ALL_MODULES.$(m).REQUIRED_FROM_HOST) will also be installed
define add-all-host-to-host-required-modules-deps
$(foreach m,$(ALL_MODULES), \
  $(eval r := $(ALL_MODULES.$(m).REQUIRED_FROM_HOST)) \
  $(if $(r), \
    $(eval r := $(call module-installed-files,$(r))) \
    $(eval h_m := $(filter $(HOST_OUT)/%, $(ALL_MODULES.$(m).INSTALLED))) \
    $(eval h_r := $(filter $(HOST_OUT)/%, $(r))) \
    $(eval h_m := $(filter-out $(h_r), $(h_m))) \
    $(if $(h_m), $(eval $(call add-required-deps, $(h_m),$(h_r)))) \
  ) \
)
endef
$(call add-all-host-to-host-required-modules-deps)

# Sets up dependencies such that whenever a host cross module is installed,
# any other host cross modules listed in $(ALL_MODULES.$(m).REQUIRED_FROM_HOST_CROSS) will also be installed
define add-all-host-cross-to-host-cross-required-modules-deps
$(foreach m,$(ALL_MODULES), \
  $(eval r := $(ALL_MODULES.$(m).REQUIRED_FROM_HOST_CROSS)) \
  $(if $(r), \
    $(eval r := $(call module-installed-files,$(r))) \
    $(eval hc_m := $(filter $(HOST_CROSS_OUT)/%, $(ALL_MODULES.$(m).INSTALLED))) \
    $(eval hc_r := $(filter $(HOST_CROSS_OUT)/%, $(r))) \
    $(eval hc_m := $(filter-out $(hc_r), $(hc_m))) \
    $(if $(hc_m), $(eval $(call add-required-deps, $(hc_m),$(hc_r)))) \
  ) \
)
endef
$(call add-all-host-cross-to-host-cross-required-modules-deps)

# Sets up dependencies such that whenever a target module is installed,
# any other target modules listed in $(ALL_MODULES.$(m).REQUIRED_FROM_TARGET) will also be installed
define add-all-target-to-target-required-modules-deps
$(foreach m,$(ALL_MODULES), \
  $(eval r := $(ALL_MODULES.$(m).REQUIRED_FROM_TARGET)) \
  $(if $(r), \
    $(eval r := $(call module-installed-files,$(r))) \
    $(eval t_m := $(filter $(TARGET_OUT_ROOT)/%, $(ALL_MODULES.$(m).INSTALLED))) \
    $(eval t_r := $(filter $(TARGET_OUT_ROOT)/%, $(r))) \
    $(eval t_m := $(filter-out $(t_r), $(t_m))) \
    $(if $(t_m), $(eval $(call add-required-deps, $(t_m),$(t_r)))) \
  ) \
)
endef
$(call add-all-target-to-target-required-modules-deps)

# Sets up dependencies such that whenever a host module is installed,
# any target modules listed in $(ALL_MODULES.$(m).TARGET_REQUIRED_FROM_HOST) will also be installed
define add-all-host-to-target-required-modules-deps
$(foreach m,$(ALL_MODULES), \
  $(eval req_mods := $(ALL_MODULES.$(m).TARGET_REQUIRED_FROM_HOST))\
  $(if $(req_mods), \
    $(eval req_files := )\
    $(foreach req_mod,$(req_mods), \
      $(eval req_file := $(filter $(TARGET_OUT_ROOT)/%, $(call module-installed-files,$(req_mod)))) \
      $(if $(strip $(req_file))$(ONE_SHOT_MAKEFILE),\
        ,\
        $(error $(m).LOCAL_TARGET_REQUIRED_MODULES : illegal value $(req_mod) : not a device module. If you want to specify host modules to be required to be installed along with your host module, add those module names to LOCAL_REQUIRED_MODULES instead)\
      )\
      $(eval req_files := $(req_files)$(space)$(req_file))\
    )\
    $(eval req_files := $(strip $(req_files)))\
    $(eval mod_files := $(filter $(HOST_OUT)/%, $(call module-installed-files,$(m)))) \
    $(eval mod_files := $(filter-out $(req_files),$(mod_files)))\
    $(if $(mod_files),\
      $(eval $(call add-required-deps, $(mod_files),$(req_files))) \
    )\
  )\
)
endef
$(call add-all-host-to-target-required-modules-deps)

# Sets up dependencies such that whenever a target module is installed,
# any host modules listed in $(ALL_MODULES.$(m).HOST_REQUIRED_FROM_TARGET) will also be installed
define add-all-target-to-host-required-modules-deps
$(foreach m,$(ALL_MODULES), \
  $(eval req_mods := $(ALL_MODULES.$(m).HOST_REQUIRED_FROM_TARGET))\
  $(if $(req_mods), \
    $(eval req_files := )\
    $(foreach req_mod,$(req_mods), \
      $(eval req_file := $(filter $(HOST_OUT)/%, $(call module-installed-files,$(req_mod)))) \
      $(if $(strip $(req_file))$(ONE_SHOT_MAKEFILE),\
        ,\
        $(error $(m).LOCAL_HOST_REQUIRED_MODULES : illegal value $(req_mod) : not a host module. If you want to specify target modules to be required to be installed along with your target module, add those module names to LOCAL_REQUIRED_MODULES instead)\
      )\
      $(eval req_files := $(req_files)$(space)$(req_file))\
    )\
    $(eval req_files := $(strip $(req_files)))\
    $(eval mod_files := $(filter $(TARGET_OUT_ROOT)/%, $(call module-installed-files,$(m))))\
    $(eval mod_files := $(filter-out $(req_files),$(mod_files)))\
    $(if $(mod_files),\
      $(eval $(call add-required-deps, $(mod_files),$(req_files))) \
    )\
  )\
)
endef
$(call add-all-target-to-host-required-modules-deps)

t_m :=
h_m :=
hc_m :=
t_r :=
h_r :=
hc_r :=

# Establish the dependencies on the shared libraries.
# It also adds the shared library module names to ALL_MODULES.$(m).REQUIRED_FROM_(TARGET|HOST|HOST_CROSS),
# so they can be expanded to product_MODULES later.
# $(1): TARGET_ or HOST_ or HOST_CROSS_.
# $(2): non-empty for 2nd arch.
# $(3): non-empty for host cross compile.
define resolve-shared-libs-depes
$(foreach m,$($(if $(2),$($(1)2ND_ARCH_VAR_PREFIX))$(1)DEPENDENCIES_ON_SHARED_LIBRARIES),\
  $(eval p := $(subst :,$(space),$(m)))\
  $(eval mod := $(firstword $(p)))\
  $(eval deps := $(subst $(comma),$(space),$(lastword $(p))))\
  $(eval root := $(1)OUT$(if $(call streq,$(1),TARGET_),_ROOT))\
  $(if $(2),$(eval deps := $(addsuffix $($(1)2ND_ARCH_MODULE_SUFFIX),$(deps))))\
  $(if $(3),$(eval deps := $(addprefix host_cross_,$(deps))))\
  $(eval r := $(filter $($(root))/%,$(call module-installed-files,\
    $(deps))))\
  $(if $(filter $(1),HOST_),\
    $(eval ALL_MODULES.$(mod).HOST_SHARED_LIBRARY_FILES := $$(ALL_MODULES.$(mod).HOST_SHARED_LIBRARY_FILES) $(word 2,$(p)) $(r))\
    $(eval ALL_MODULES.$(mod).HOST_SHARED_LIBRARIES := $$(ALL_MODULES.$(mod).HOST_SHARED_LIBRARIES) $(deps))\
    $(eval $(call add-required-host-so-deps,$(word 2,$(p)),$(r))),\
    $(eval $(call add-required-deps,$(word 2,$(p)),$(r))))\
  $(eval ALL_MODULES.$(mod).REQUIRED_FROM_$(patsubst %_,%,$(1)) += $(deps)))
endef

# Recursively resolve host shared library dependency for a given module.
# $(1): module name
# Returns all dependencies of shared library.
define get-all-shared-libs-deps
$(if $(_all_deps_for_$(1)_set_),$(_all_deps_for_$(1)_),\
  $(eval _all_deps_for_$(1)_ :=) \
  $(foreach dep,$(ALL_MODULES.$(1).HOST_SHARED_LIBRARIES),\
    $(foreach m,$(call get-all-shared-libs-deps,$(dep)),\
      $(eval _all_deps_for_$(1)_ := $$(_all_deps_for_$(1)_) $(m))\
      $(eval _all_deps_for_$(1)_ := $(sort $(_all_deps_for_$(1)_))))\
    $(eval _all_deps_for_$(1)_ := $$(_all_deps_for_$(1)_) $(dep))\
    $(eval _all_deps_for_$(1)_ := $(sort $(_all_deps_for_$(1)_) $(dep)))\
    $(eval _all_deps_for_$(1)_set_ := true))\
$(_all_deps_for_$(1)_))
endef

# Scan all modules in general-tests and device-tests suite and flatten the
# shared library dependencies.
define update-host-shared-libs-deps-for-suites
$(foreach suite,general-tests device-tests,\
  $(foreach m,$(COMPATIBILITY.$(suite).MODULES),\
    $(eval my_deps := $(call get-all-shared-libs-deps,$(m)))\
    $(foreach dep,$(my_deps),\
      $(foreach f,$(ALL_MODULES.$(dep).HOST_SHARED_LIBRARY_FILES),\
        $(eval target := $(HOST_OUT_TESTCASES)/$(lastword $(subst /, ,$(dir $(f))))/$(notdir $(f)))\
        $(eval COMPATIBILITY.$(suite).HOST_SHARED_LIBRARY.FILES := \
          $$(COMPATIBILITY.$(suite).HOST_SHARED_LIBRARY.FILES) $(f):$(target))\
        $(eval COMPATIBILITY.$(suite).HOST_SHARED_LIBRARY.FILES := \
          $(sort $(COMPATIBILITY.$(suite).HOST_SHARED_LIBRARY.FILES)))))))
endef

$(call resolve-shared-libs-depes,TARGET_)
ifdef TARGET_2ND_ARCH
$(call resolve-shared-libs-depes,TARGET_,true)
endif
$(call resolve-shared-libs-depes,HOST_)
ifdef HOST_2ND_ARCH
$(call resolve-shared-libs-depes,HOST_,true)
endif
# Update host side shared library dependencies for tests in suite device-tests and general-tests.
# This should be called after calling resolve-shared-libs-depes for HOST_2ND_ARCH.
$(call update-host-shared-libs-deps-for-suites)
ifdef HOST_CROSS_OS
$(call resolve-shared-libs-depes,HOST_CROSS_,,true)
ifdef HOST_CROSS_2ND_ARCH
$(call resolve-shared-libs-depes,HOST_CROSS_,true,true)
endif
endif

# Pass the shared libraries dependencies to prebuilt ELF file check.
define add-elf-file-check-shared-lib
$(1): PRIVATE_SHARED_LIBRARY_FILES += $(2)
$(1): $(2)
endef

define resolve-shared-libs-for-elf-file-check
$(foreach m,$($(if $(2),$($(1)2ND_ARCH_VAR_PREFIX))$(1)DEPENDENCIES_ON_SHARED_LIBRARIES),\
  $(eval p := $(subst :,$(space),$(m)))\
  $(eval mod := $(firstword $(p)))\
  \
  $(eval deps := $(subst $(comma),$(space),$(lastword $(p))))\
  $(if $(2),$(eval deps := $(addsuffix $($(1)2ND_ARCH_MODULE_SUFFIX),$(deps))))\
  $(eval root := $(1)OUT$(if $(call streq,$(1),TARGET_),_ROOT))\
  $(eval deps := $(filter $($(root))/%$($(1)SHLIB_SUFFIX),$(call module-built-files,$(deps))))\
  \
  $(eval r := $(firstword $(filter \
    $($(if $(2),$($(1)2ND_ARCH_VAR_PREFIX))TARGET_OUT_INTERMEDIATES)/EXECUTABLES/%\
    $($(if $(2),$($(1)2ND_ARCH_VAR_PREFIX))TARGET_OUT_INTERMEDIATES)/NATIVE_TESTS/%\
    $($(if $(2),$($(1)2ND_ARCH_VAR_PREFIX))TARGET_OUT_INTERMEDIATES)/SHARED_LIBRARIES/%,\
    $(call module-built-files,$(mod)))))\
  \
  $(if $(r),\
    $(eval stamp := $(dir $(r))check_elf_files.timestamp)\
    $(eval $(call add-elf-file-check-shared-lib,$(stamp),$(deps)))\
  ))
endef

$(call resolve-shared-libs-for-elf-file-check,TARGET_)
ifdef TARGET_2ND_ARCH
$(call resolve-shared-libs-for-elf-file-check,TARGET_,true)
endif

m :=
r :=
p :=
stamp :=
deps :=
add-required-deps :=

################################################################################
# Link type checking
#
# ALL_LINK_TYPES contains a list of all link type prefixes (generally one per
# module, but APKs can "link" to both java and native code). The link type
# prefix consists of all the information needed by intermediates-dir-for:
#
#  LINK_TYPE:TARGET:_:2ND:STATIC_LIBRARIES:libfoo
#
#   1: LINK_TYPE literal
#   2: prefix
#     - TARGET
#     - HOST
#     - HOST_CROSS
#     - AUX-<variant-name>
#   3: Whether to use the common intermediates directory or not
#     - _
#     - COMMON
#   4: Whether it's the second arch or not
#     - _
#     - 2ND_
#   5: Module Class
#     - STATIC_LIBRARIES
#     - SHARED_LIBRARIES
#     - ...
#   6: Module Name
#
# Then fields under that are separated by a period and the field name:
#   - TYPE: the link types for this module
#   - MAKEFILE: Where this module was defined
#   - BUILT: The built module location
#   - DEPS: the link type prefixes for the module's dependencies
#   - ALLOWED: the link types to allow in this module's dependencies
#   - WARN: the link types to warn about in this module's dependencies
#
# All of the dependency link types not listed in ALLOWED or WARN will become
# errors.
################################################################################

link_type_error :=

define link-type-prefix-base
$(word 2,$(subst :,$(space),$(1)))
endef
define link-type-prefix
$(if $(filter AUX-%,$(link-type-prefix-base)),$(patsubst AUX-%,AUX,$(link-type-prefix-base)),$(link-type-prefix-base))
endef
define link-type-aux-variant
$(if $(filter AUX-%,$(link-type-prefix-base)),$(patsubst AUX-%,%,$(link-type-prefix-base)))
endef
define link-type-common
$(patsubst _,,$(word 3,$(subst :,$(space),$(1))))
endef
define link-type-2ndarchprefix
$(patsubst _,,$(word 4,$(subst :,$(space),$(1))))
endef
define link-type-class
$(word 5,$(subst :,$(space),$(1)))
endef
define link-type-name
$(word 6,$(subst :,$(space),$(1)))
endef
define link-type-os
$(strip $(eval _p := $(link-type-prefix))\
  $(if $(filter HOST HOST_CROSS,$(_p)),\
    $($(_p)_OS),\
    $(if $(filter AUX,$(_p)),AUX,android)))
endef
define link-type-arch
$($(link-type-prefix)_$(link-type-2ndarchprefix)ARCH)
endef
define link-type-name-variant
$(link-type-name) ($(link-type-class) $(link-type-os)-$(link-type-arch))
endef

# $(1): the prefix of the module doing the linking
# $(2): the prefix of the linked module
define link-type-warning
$(shell $(call echo-warning,$($(1).MAKEFILE),"$(call link-type-name,$(1)) ($($(1).TYPE)) should not link against $(call link-type-name,$(2)) ($(3))"))
endef

# $(1): the prefix of the module doing the linking
# $(2): the prefix of the linked module
define link-type-error
$(shell $(call echo-error,$($(1).MAKEFILE),"$(call link-type-name,$(1)) ($($(1).TYPE)) can not link against $(call link-type-name,$(2)) ($(3))"))\
$(eval link_type_error := true)
endef

link-type-missing :=
ifneq ($(ALLOW_MISSING_DEPENDENCIES),true)
  # Print an error message if the linked-to module is missing
  # $(1): the prefix of the module doing the linking
  # $(2): the prefix of the missing module
  define link-type-missing
    $(shell $(call echo-error,$($(1).MAKEFILE),"$(call link-type-name-variant,$(1)) missing $(call link-type-name-variant,$(2))"))\
    $(eval available_variants := $(filter %:$(call link-type-name,$(2)),$(ALL_LINK_TYPES)))\
    $(if $(available_variants),\
      $(info Available variants:)\
      $(foreach v,$(available_variants),$(info $(space)$(space)$(call link-type-name-variant,$(v)))))\
    $(info You can set ALLOW_MISSING_DEPENDENCIES=true in your environment if this is intentional, but that may defer real problems until later in the build.)\
    $(eval link_type_error := true)
  endef
else
  define link-type-missing
    $(eval $$(1).MISSING := true)
  endef
endif

# Verify that $(1) can link against $(2)
# Both $(1) and $(2) are the link type prefix defined above
define verify-link-type
$(foreach t,$($(2).TYPE),\
  $(if $(filter-out $($(1).ALLOWED),$(t)),\
    $(if $(filter $(t),$($(1).WARN)),\
      $(call link-type-warning,$(1),$(2),$(t)),\
      $(call link-type-error,$(1),$(2),$(t)))))
endef

# TODO: Verify all branches/configs have reasonable warnings/errors, and remove
# this override
verify-link-type = $(eval $$(1).MISSING := true)

$(foreach lt,$(ALL_LINK_TYPES),\
  $(foreach d,$($(lt).DEPS),\
    $(if $($(d).TYPE),\
      $(call verify-link-type,$(lt),$(d)),\
      $(call link-type-missing,$(lt),$(d)))))

ifdef link_type_error
  $(error exiting from previous errors)
endif

# The intermediate filename for link type rules
#
# APPS are special -- they have up to three different rules:
#  1. The COMMON rule for Java libraries
#  2. The jni_link_type rule for embedded native code
#  3. The 2ND_jni_link_type for the second architecture native code
define link-type-file
$(eval _ltf_aux_variant:=$(link-type-aux-variant))\
$(if $(_ltf_aux_variant),$(call aux-variant-load-env,$(_ltf_aux_variant)))\
$(call intermediates-dir-for,$(link-type-class),$(link-type-name),$(filter AUX HOST HOST_CROSS,$(link-type-prefix)),$(link-type-common),$(link-type-2ndarchprefix),$(filter HOST_CROSS,$(link-type-prefix)))/$(if $(filter APPS,$(link-type-class)),$(if $(link-type-common),,$(link-type-2ndarchprefix)jni_))link_type\
$(if $(_ltf_aux_variant),$(call aux-variant-load-env,none))\
$(eval _ltf_aux_variant:=)
endef

# Write out the file-based link_type rules for the ALLOW_MISSING_DEPENDENCIES
# case. We always need to write the file for mm to work, but only need to
# check it if we weren't able to check it when reading the Android.mk files.
define link-type-file-rule
my_link_type_deps := $(foreach l,$($(1).DEPS),$(call link-type-file,$(l)))
my_link_type_file := $(call link-type-file,$(1))
$($(1).BUILT): | $$(my_link_type_file)
$$(my_link_type_file): PRIVATE_DEPS := $$(my_link_type_deps)
ifeq ($($(1).MISSING),true)
$$(my_link_type_file): $(CHECK_LINK_TYPE)
endif
$$(my_link_type_file): $$(my_link_type_deps)
	@echo Check module type: $$@
	$$(hide) mkdir -p $$(dir $$@) && rm -f $$@
ifeq ($($(1).MISSING),true)
	$$(hide) $(CHECK_LINK_TYPE) --makefile $($(1).MAKEFILE) --module $(link-type-name) \
	  --type "$($(1).TYPE)" $(addprefix --allowed ,$($(1).ALLOWED)) \
	  $(addprefix --warn ,$($(1).WARN)) $$(PRIVATE_DEPS)
endif
	$$(hide) echo "$($(1).TYPE)" >$$@
endef

$(foreach lt,$(ALL_LINK_TYPES),\
  $(eval $(call link-type-file-rule,$(lt))))

# -------------------------------------------------------------------
# Figure out our module sets.
#
# Of the modules defined by the component makefiles,
# determine what we actually want to build.


# Expand a list of modules to the modules that they override (if any)
# $(1): The list of modules.
define module-overrides
$(foreach m,$(1),$(PACKAGES.$(m).OVERRIDES) $(EXECUTABLES.$(m).OVERRIDES) $(SHARED_LIBRARIES.$(m).OVERRIDES))
endef

###########################################################
## Expand a module name list with REQUIRED modules
###########################################################
# $(1): The variable name that holds the initial module name list.
#       the variable will be modified to hold the expanded results.
# $(2): The initial module name list.
# $(3): The list of overridden modules.
# Returns empty string (maybe with some whitespaces).
define expand-required-modules
$(eval _erm_req := $(foreach m,$(2),$(ALL_MODULES.$(m).REQUIRED_FROM_TARGET))) \
$(eval _erm_new_modules := $(sort $(filter-out $($(1)),$(_erm_req)))) \
$(eval _erm_new_overrides := $(call module-overrides,$(_erm_new_modules))) \
$(eval _erm_all_overrides := $(3) $(_erm_new_overrides)) \
$(eval _erm_new_modules := $(filter-out $(_erm_all_overrides), $(_erm_new_modules))) \
$(eval $(1) := $(filter-out $(_erm_new_overrides),$($(1)))) \
$(eval $(1) += $(_erm_new_modules)) \
$(if $(_erm_new_modules),\
  $(call expand-required-modules,$(1),$(_erm_new_modules),$(_erm_all_overrides)))
endef

# Same as expand-required-modules above, but does not handle module overrides, as
# we don't intend to support them on the host.
# $(1): The variable name that holds the initial module name list.
#       the variable will be modified to hold the expanded results.
# $(2): The initial module name list.
# $(3): HOST or HOST_CROSS depending on whether we're expanding host or host cross modules
# Returns empty string (maybe with some whitespaces).
define expand-required-host-modules
$(eval _erm_req := $(foreach m,$(2),$(ALL_MODULES.$(m).REQUIRED_FROM_$(3)))) \
$(eval _erm_new_modules := $(sort $(filter-out $($(1)),$(_erm_req)))) \
$(eval $(1) += $(_erm_new_modules)) \
$(if $(_erm_new_modules),\
  $(call expand-required-host-modules,$(1),$(_erm_new_modules),$(3)))
endef

# Transforms paths relative to PRODUCT_OUT to absolute paths.
# $(1): list of relative paths
# $(2): optional suffix to append to paths
define resolve-product-relative-paths
  $(subst $(_vendor_path_placeholder),$(TARGET_COPY_OUT_VENDOR),\
    $(subst $(_product_path_placeholder),$(TARGET_COPY_OUT_PRODUCT),\
      $(subst $(_system_ext_path_placeholder),$(TARGET_COPY_OUT_SYSTEM_EXT),\
        $(subst $(_odm_path_placeholder),$(TARGET_COPY_OUT_ODM),\
          $(foreach p,$(1),$(call append-path,$(PRODUCT_OUT),$(p)$(2)))))))
endef

# Returns modules included automatically as a result of certain BoardConfig
# variables being set.
define auto-included-modules
  $(if $(BOARD_VNDK_VERSION),vndk_package) \
  $(if $(DEVICE_MANIFEST_FILE),device_manifest.xml) \
  $(if $(ODM_MANIFEST_FILES),odm_manifest.xml) \
  $(if $(ODM_MANIFEST_SKUS),$(foreach sku, $(ODM_MANIFEST_SKUS),odm_manifest_$(sku).xml)) \

endef

# Lists most of the files a particular product installs, including:
# - PRODUCT_PACKAGES, and their LOCAL_REQUIRED_MODULES
# - PRODUCT_COPY_FILES
# The base list of modules to build for this product is specified
# by the appropriate product definition file, which was included
# by product_config.mk.
# Name resolution for PRODUCT_PACKAGES:
#   foo:32 resolves to foo_32;
#   foo:64 resolves to foo;
#   foo resolves to both foo and foo_32 (if foo_32 is defined).
#
# Name resolution for LOCAL_REQUIRED_MODULES:
#   If a module is built for 2nd arch, its required module resolves to
#   32-bit variant, if it exits. See the select-bitness-of-required-modules definition.
# $(1): product makefile
define product-installed-files
  $(eval _mk := $(strip $(1))) \
  $(eval _pif_modules := \
    $(PRODUCTS.$(_mk).PRODUCT_PACKAGES) \
    $(if $(filter eng,$(tags_to_install)),$(PRODUCTS.$(_mk).PRODUCT_PACKAGES_ENG)) \
    $(if $(filter debug,$(tags_to_install)),$(PRODUCTS.$(_mk).PRODUCT_PACKAGES_DEBUG)) \
    $(if $(filter tests,$(tags_to_install)),$(PRODUCTS.$(_mk).PRODUCT_PACKAGES_TESTS)) \
    $(if $(filter asan,$(tags_to_install)),$(PRODUCTS.$(_mk).PRODUCT_PACKAGES_DEBUG_ASAN)) \
    $(if $(filter java_coverage,$(tags_to_install)),$(PRODUCTS.$(_mk).PRODUCT_PACKAGES_DEBUG_JAVA_COVERAGE)) \
    $(call auto-included-modules) \
  ) \
  $(eval ### Filter out the overridden packages and executables before doing expansion) \
  $(eval _pif_overrides := $(call module-overrides,$(_pif_modules))) \
  $(eval _pif_modules := $(filter-out $(_pif_overrides), $(_pif_modules))) \
  $(eval ### Resolve the :32 :64 module name) \
  $(eval _pif_modules_32 := $(patsubst %:32,%,$(filter %:32, $(_pif_modules)))) \
  $(eval _pif_modules_64 := $(patsubst %:64,%,$(filter %:64, $(_pif_modules)))) \
  $(eval _pif_modules_rest := $(filter-out %:32 %:64,$(_pif_modules))) \
  $(eval ### Note for 32-bit product, 32 and 64 will be added as their original module names.) \
  $(eval _pif_modules := $(call get-32-bit-modules-if-we-can, $(_pif_modules_32))) \
  $(eval _pif_modules += $(_pif_modules_64)) \
  $(eval ### For the rest we add both) \
  $(eval _pif_modules += $(call get-32-bit-modules, $(_pif_modules_rest))) \
  $(eval _pif_modules += $(_pif_modules_rest)) \
  $(call expand-required-modules,_pif_modules,$(_pif_modules),$(_pif_overrides)) \
  $(filter-out $(HOST_OUT_ROOT)/%,$(call module-installed-files, $(_pif_modules))) \
  $(call resolve-product-relative-paths,\
    $(foreach cf,$(PRODUCTS.$(_mk).PRODUCT_COPY_FILES),$(call word-colon,2,$(cf))))
endef

# Similar to product-installed-files above, but handles PRODUCT_HOST_PACKAGES instead
# This does support the :32 / :64 syntax, but does not support module overrides.
define host-installed-files
  $(eval _hif_modules := $(PRODUCTS.$(strip $(1)).PRODUCT_HOST_PACKAGES)) \
  $(eval ### Resolve the :32 :64 module name) \
  $(eval _hif_modules_32 := $(patsubst %:32,%,$(filter %:32, $(_hif_modules)))) \
  $(eval _hif_modules_64 := $(patsubst %:64,%,$(filter %:64, $(_hif_modules)))) \
  $(eval _hif_modules_rest := $(filter-out %:32 %:64,$(_hif_modules))) \
  $(eval _hif_modules := $(call get-host-32-bit-modules-if-we-can, $(_hif_modules_32))) \
  $(eval _hif_modules += $(_hif_modules_64)) \
  $(eval ### For the rest we add both) \
  $(eval _hif_modules += $(call get-host-32-bit-modules, $(_hif_modules_rest))) \
  $(eval _hif_modules += $(_hif_modules_rest)) \
  $(eval ### Split host vs host cross modules) \
  $(eval _hcif_modules := $(filter host_cross_%,$(_hif_modules))) \
  $(eval _hif_modules := $(filter-out host_cross_%,$(_hif_modules))) \
  $(call expand-required-host-modules,_hif_modules,$(_hif_modules),HOST) \
  $(call expand-required-host-modules,_hcif_modules,$(_hcif_modules),HOST_CROSS) \
  $(filter $(HOST_OUT)/%,$(call module-installed-files, $(_hif_modules))) \
  $(filter $(HOST_CROSS_OUT)/%,$(call module-installed-files, $(_hcif_modules)))
endef

# Fails the build if the given list is non-empty, and prints it entries (stripping PRODUCT_OUT).
# $(1): list of files to print
# $(2): heading to print on failure
define maybe-print-list-and-error
$(if $(strip $(1)), \
  $(warning $(2)) \
  $(info Offending entries:) \
  $(foreach e,$(sort $(1)),$(info    $(patsubst $(PRODUCT_OUT)/%,%,$(e)))) \
  $(error Build failed) \
)
endef

# Check that libraries that should only be in APEXes don't end up in the system
# image. For the Runtime APEX this complements the checks in
# art/build/apex/art_apex_test.py.
# TODO(b/128708192): Implement this restriction in Soong instead.

# Runtime APEX libraries
APEX_MODULE_LIBS := \
  libadbconnection.so \
  libadbconnectiond.so \
  libandroidicu.so \
  libandroidio.so \
  libart-compiler.so \
  libart-dexlayout.so \
  libart-disassembler.so \
  libart.so \
  libartbase.so \
  libartbased.so \
  libartd-compiler.so \
  libartd-dexlayout.so \
  libartd.so \
  libartpalette.so \
  libc.so \
  libc_malloc_debug.so \
  libc_malloc_hooks.so \
  libdexfile.so \
  libdexfile_external.so \
  libdexfiled.so \
  libdexfiled_external.so \
  libdl.so \
  libdt_fd_forward.so \
  libdt_socket.so \
  libicui18n.so \
  libicuuc.so \
  libjavacore.so \
  libjdwp.so \
  libm.so \
  libnativebridge.so \
  libnativehelper.so \
  libnativeloader.so \
  libneuralnetworks.so \
  libnpt.so \
  libopenjdk.so \
  libopenjdkjvm.so \
  libopenjdkjvmd.so \
  libopenjdkjvmti.so \
  libopenjdkjvmtid.so \
  libpac.so \
  libprofile.so \
  libprofiled.so \
  libsigchain.so \

# Conscrypt APEX libraries
APEX_MODULE_LIBS += \
  libjavacrypto.so \

# An option to disable the check below, for local use since some build targets
# still may create these libraries in /system (b/129006418).
DISABLE_APEX_LIBS_ABSENCE_CHECK ?=

# Bionic should not be in /system, except for the bootstrap instance.
APEX_LIBS_ABSENCE_CHECK_EXCLUDE := lib/bootstrap lib64/bootstrap

# Exclude lib/arm and lib64/arm64 which contain the native bridge proxy libs. They
# are compiled for the guest architecture and used with an entirely different
# linker config. The native libs are then linked to as usual via exported
# interfaces, so the proxy libs do not violate the interface boundaries on the
# native architecture.
# TODO(b/130630776): Introduce a make variable for the appropriate directory
# when native bridge is active.
APEX_LIBS_ABSENCE_CHECK_EXCLUDE += lib/arm lib64/arm64

ifdef TARGET_NATIVE_BRIDGE_RELATIVE_PATH
	APEX_LIBS_ABSENCE_CHECK_EXCLUDE += lib/$(TARGET_NATIVE_BRIDGE_RELATIVE_PATH) lib64/$(TARGET_NATIVE_BRIDGE_RELATIVE_PATH)
endif

ifdef TARGET_NATIVE_BRIDGE_2ND_RELATIVE_PATH
	APEX_LIBS_ABSENCE_CHECK_EXCLUDE += lib/$(TARGET_NATIVE_BRIDGE_2ND_RELATIVE_PATH) lib64/$(TARGET_NATIVE_BRIDGE_2ND_RELATIVE_PATH)
endif

# Exclude vndk-* subdirectories which contain prebuilts from older releases.
APEX_LIBS_ABSENCE_CHECK_EXCLUDE += lib/vndk-% lib64/vndk-%

ifdef DISABLE_APEX_LIBS_ABSENCE_CHECK
  check-apex-libs-absence :=
  check-apex-libs-absence-on-disk :=
else
  # If the check below fails, some library has ended up in system/lib or
  # system/lib64 that is intended to only go into some APEX package. The likely
  # cause is that a library or binary in /system has grown a dependency that
  # directly or indirectly pulls in the prohibited library.
  #
  # To resolve this, look for the APEX package that the library belong to -
  # search for it in 'native_shared_lib' properties in 'apex' build modules (see
  # art/build/apex/Android.bp for an example). Then check if there is an
  # exported library in that APEX package that should be used instead, i.e. one
  # listed in its 'native_shared_lib' property for which the corresponding
  # 'cc_library' module has a 'stubs' clause (like libdexfile_external in
  # art/libdexfile/Android.bp).
  #
  # If you cannot find an APEX exported library that fits your needs, or you
  # think that the library you want to depend on should be allowed in /system,
  # then please contact the owners of the APEX package containing the library.
  #
  # If you get this error for a library that is exported in an APEX, then the
  # APEX might be misconfigured or something is wrong in the build system.
  # Please reach out to the APEX package owners and/or soong-team@, or
  # android-building@googlegroups.com externally.
  define check-apex-libs-absence
    $(call maybe-print-list-and-error, \
      $(filter $(foreach lib,$(APEX_MODULE_LIBS),%/$(lib)), \
        $(filter-out $(foreach dir,$(APEX_LIBS_ABSENCE_CHECK_EXCLUDE), \
                       $(TARGET_OUT)/$(if $(findstring %,$(dir)),$(dir),$(dir)/%)), \
          $(filter $(TARGET_OUT)/lib/% $(TARGET_OUT)/lib64/%,$(1)))), \
      APEX libraries found in product_target_FILES (see comment for check-apex-libs-absence in \
      build/make/core/main.mk for details))
  endef

  # TODO(b/129006418): The check above catches libraries through product
  # dependencies visible to make, but as long as they have install rules in
  # /system they may still be created there through other make targets. To catch
  # that we also do a check on disk just before the system image is built.
  # NB: This check may fail if you have built intermediate targets in the out
  # tree earlier, e.g. "m <some lib in APEX_MODULE_LIBS>". In that case, please
  # try "m installclean && m systemimage" to get a correct system image. For
  # local work you can also disable the check with the
  # DISABLE_APEX_LIBS_ABSENCE_CHECK environment variable.
  define check-apex-libs-absence-on-disk
    $(hide) ( \
      cd $(TARGET_OUT) && \
      findres=$$(find lib* \
        $(foreach dir,$(APEX_LIBS_ABSENCE_CHECK_EXCLUDE),-path "$(subst %,*,$(dir))" -prune -o) \
        -type f \( -false $(foreach lib,$(APEX_MODULE_LIBS),-o -name $(lib)) \) \
        -print) && \
      if [ -n "$$findres" ]; then \
        echo "APEX libraries found in system image in TARGET_OUT (see comments for" 1>&2; \
        echo "check-apex-libs-absence and check-apex-libs-absence-on-disk in" 1>&2; \
        echo "build/make/core/main.mk for details):" 1>&2; \
        echo "$$findres" | sort 1>&2; \
        false; \
      fi; \
    )
  endef
endif

ifdef FULL_BUILD
  ifneq (true,$(ALLOW_MISSING_DEPENDENCIES))
    # Check to ensure that all modules in PRODUCT_PACKAGES exist (opt in per product)
    ifeq (true,$(PRODUCT_ENFORCE_PACKAGES_EXIST))
      _whitelist := $(PRODUCT_ENFORCE_PACKAGES_EXIST_WHITELIST)
      _modules := $(PRODUCT_PACKAGES)
      # Strip :32 and :64 suffixes
      _modules := $(patsubst %:32,%,$(_modules))
      _modules := $(patsubst %:64,%,$(_modules))
      # Sanity check all modules in PRODUCT_PACKAGES exist. We check for the
      # existence if either <module> or the <module>_32 variant.
      _nonexistent_modules := $(filter-out $(ALL_MODULES),$(_modules))
      _nonexistent_modules := $(foreach m,$(_nonexistent_modules),\
        $(if $(call get-32-bit-modules,$(m)),,$(m)))
      $(call maybe-print-list-and-error,$(filter-out $(_whitelist),$(_nonexistent_modules)),\
        $(INTERNAL_PRODUCT) includes non-existent modules in PRODUCT_PACKAGES)
      $(call maybe-print-list-and-error,$(filter-out $(_nonexistent_modules),$(_whitelist)),\
        $(INTERNAL_PRODUCT) includes redundant whitelist entries for nonexistent PRODUCT_PACKAGES)
    endif

    # Check to ensure that all modules in PRODUCT_HOST_PACKAGES exist
    #
    # Many host modules are Linux-only, so skip this check on Mac. If we ever have Mac-only modules,
    # maybe it would make sense to have PRODUCT_HOST_PACKAGES_LINUX/_DARWIN?
    ifneq ($(HOST_OS),darwin)
      _modules := $(PRODUCT_HOST_PACKAGES)
      # Strip :32 and :64 suffixes
      _modules := $(patsubst %:32,%,$(_modules))
      _modules := $(patsubst %:64,%,$(_modules))
      _nonexistent_modules := $(foreach m,$(_modules),\
        $(if $(ALL_MODULES.$(m).REQUIRED_FROM_HOST)$(filter $(HOST_OUT_ROOT)/%,$(ALL_MODULES.$(m).INSTALLED)),,$(m)))
      $(call maybe-print-list-and-error,$(_nonexistent_modules),\
        $(INTERNAL_PRODUCT) includes non-existent modules in PRODUCT_HOST_PACKAGES)
    endif
  endif

  # Some modules produce only host installed files when building with TARGET_BUILD_APPS
  ifeq ($(TARGET_BUILD_APPS),)
    _modules := $(foreach m,$(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_PACKAGES) \
                            $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_PACKAGES_DEBUG) \
                            $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_PACKAGES_DEBUG_ASAN) \
                            $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_PACKAGES_ENG) \
                            $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_PACKAGES_TESTS),\
                  $(if $(ALL_MODULES.$(m).INSTALLED),\
                    $(if $(filter-out $(HOST_OUT_ROOT)/%,$(ALL_MODULES.$(m).INSTALLED)),,\
                      $(m))))
    $(call maybe-print-list-and-error,$(sort $(_modules)),\
      Host modules should be in PRODUCT_HOST_PACKAGES$(comma) not PRODUCT_PACKAGES)
  endif

  product_host_FILES := $(call host-installed-files,$(INTERNAL_PRODUCT))
  product_target_FILES := $(call product-installed-files, $(INTERNAL_PRODUCT))
  # WARNING: The product_MODULES variable is depended on by external files.
  product_MODULES := $(_pif_modules)

  # Verify the artifact path requirements made by included products.
  is_asan := $(if $(filter address,$(SANITIZE_TARGET)),true)
  ifneq (true,$(or $(is_asan),$(DISABLE_ARTIFACT_PATH_REQUIREMENTS)))
  # Fakes don't get installed, host files are irrelevant, and NDK stubs aren't installed to device.
  static_whitelist_patterns := $(TARGET_OUT_FAKE)/% $(HOST_OUT)/% $(SOONG_OUT_DIR)/ndk/%
  # RROs become REQUIRED by the source module, but are always placed on the vendor partition.
  static_whitelist_patterns += %__auto_generated_rro_product.apk
  static_whitelist_patterns += %__auto_generated_rro_vendor.apk
  # Auto-included targets are not considered
  static_whitelist_patterns += $(call module-installed-files,$(call auto-included-modules))
  # $(PRODUCT_OUT)/apex is where shared libraries in APEXes get installed.
  # The path can be considered as a fake path, as the shared libraries
  # are installed there just to have symbols files for them under
  # $(PRODUCT_OUT)/symbols/apex for debugging purpose. The /apex directory
  # is never compiled into a filesystem image.
  static_whitelist_patterns += $(PRODUCT_OUT)/apex/%
  ifeq (true,$(BOARD_USES_SYSTEM_OTHER_ODEX))
    # Allow system_other odex space optimization.
    static_whitelist_patterns += \
      $(TARGET_OUT_SYSTEM_OTHER)/%.odex \
      $(TARGET_OUT_SYSTEM_OTHER)/%.vdex \
      $(TARGET_OUT_SYSTEM_OTHER)/%.art
  endif

CERTIFICATE_VIOLATION_MODULES_FILENAME := $(PRODUCT_OUT)/certificate_violation_modules.txt
$(CERTIFICATE_VIOLATION_MODULES_FILENAME):
	rm -f $@
	$(foreach m,$(sort $(CERTIFICATE_VIOLATION_MODULES)), echo $(m) >> $@;)
$(call dist-for-goals,droidcore,$(CERTIFICATE_VIOLATION_MODULES_FILENAME))

  all_offending_files :=
  $(foreach makefile,$(ARTIFACT_PATH_REQUIREMENT_PRODUCTS),\
    $(eval requirements := $(PRODUCTS.$(makefile).ARTIFACT_PATH_REQUIREMENTS)) \
    $(eval ### Verify that the product only produces files inside its path requirements.) \
    $(eval whitelist := $(PRODUCTS.$(makefile).ARTIFACT_PATH_WHITELIST)) \
    $(eval path_patterns := $(call resolve-product-relative-paths,$(requirements),%)) \
    $(eval whitelist_patterns := $(call resolve-product-relative-paths,$(whitelist))) \
    $(eval files := $(call product-installed-files, $(makefile))) \
    $(eval offending_files := $(filter-out $(path_patterns) $(whitelist_patterns) $(static_whitelist_patterns),$(files))) \
    $(call maybe-print-list-and-error,$(offending_files),$(makefile) produces files outside its artifact path requirement.) \
    $(eval unused_whitelist := $(filter-out $(files),$(whitelist_patterns))) \
    $(call maybe-print-list-and-error,$(unused_whitelist),$(makefile) includes redundant whitelist entries in its artifact path requirement.) \
    $(eval ### Optionally verify that nothing else produces files inside this artifact path requirement.) \
    $(eval extra_files := $(filter-out $(files) $(HOST_OUT)/%,$(product_target_FILES))) \
    $(eval files_in_requirement := $(filter $(path_patterns),$(extra_files))) \
    $(eval all_offending_files += $(files_in_requirement)) \
    $(eval whitelist := $(PRODUCT_ARTIFACT_PATH_REQUIREMENT_WHITELIST)) \
    $(eval whitelist_patterns := $(call resolve-product-relative-paths,$(whitelist))) \
    $(eval offending_files := $(filter-out $(whitelist_patterns),$(files_in_requirement))) \
    $(eval enforcement := $(PRODUCT_ENFORCE_ARTIFACT_PATH_REQUIREMENTS)) \
    $(if $(enforcement),\
      $(call maybe-print-list-and-error,$(offending_files),\
        $(INTERNAL_PRODUCT) produces files inside $(makefile)s artifact path requirement. \
        $(PRODUCT_ARTIFACT_PATH_REQUIREMENT_HINT)) \
      $(eval unused_whitelist := $(if $(filter true strict,$(enforcement)),\
        $(foreach p,$(whitelist_patterns),$(if $(filter $(p),$(extra_files)),,$(p))))) \
      $(call maybe-print-list-and-error,$(unused_whitelist),$(INTERNAL_PRODUCT) includes redundant artifact path requirement whitelist entries.) \
    ) \
  )
$(PRODUCT_OUT)/offending_artifacts.txt:
	rm -f $@
	$(foreach f,$(sort $(all_offending_files)),echo $(f) >> $@;)
  endif

  $(call check-apex-libs-absence,$(product_target_FILES))
else
  # We're not doing a full build, and are probably only including
  # a subset of the module makefiles.  Don't try to build any modules
  # requested by the product, because we probably won't have rules
  # to build them.
  product_target_FILES :=
  product_host_FILES :=
endif

# TODO: Remove the 3 places in the tree that use ALL_DEFAULT_INSTALLED_MODULES
# and get rid of it from this list.
modules_to_install := $(sort \
    $(ALL_DEFAULT_INSTALLED_MODULES) \
    $(product_target_FILES) \
    $(product_host_FILES) \
    $(CUSTOM_MODULES) \
  )

# Don't include any GNU General Public License shared objects or static
# libraries in SDK images.  GPL executables (not static/dynamic libraries)
# are okay if they don't link against any closed source libraries (directly
# or indirectly)

# It's ok (and necessary) to build the host tools, but nothing that's
# going to be installed on the target (including static libraries).

ifdef is_sdk_build
  target_gnu_MODULES := \
              $(filter \
                      $(TARGET_OUT_INTERMEDIATES)/% \
                      $(TARGET_OUT)/% \
                      $(TARGET_OUT_DATA)/%, \
                              $(sort $(call get-tagged-modules,gnu)))
  target_gnu_MODULES := $(filter-out $(TARGET_OUT_EXECUTABLES)/%,$(target_gnu_MODULES))
  target_gnu_MODULES := $(filter-out %/libopenjdkjvmti.so,$(target_gnu_MODULES))
  target_gnu_MODULES := $(filter-out %/libopenjdkjvmtid.so,$(target_gnu_MODULES))
  $(info Removing from sdk:)$(foreach d,$(target_gnu_MODULES),$(info : $(d)))
  modules_to_install := \
              $(filter-out $(target_gnu_MODULES),$(modules_to_install))

  # Ensure every module listed in PRODUCT_PACKAGES* gets something installed
  # TODO: Should we do this for all builds and not just the sdk?
  dangling_modules :=
  $(foreach m, $(PRODUCT_PACKAGES), \
    $(if $(strip $(ALL_MODULES.$(m).INSTALLED) $(ALL_MODULES.$(m)$(TARGET_2ND_ARCH_MODULE_SUFFIX).INSTALLED)),,\
      $(eval dangling_modules += $(m))))
  ifneq ($(dangling_modules),)
    $(warning: Modules '$(dangling_modules)' in PRODUCT_PACKAGES have nothing to install!)
  endif
  $(foreach m, $(PRODUCT_PACKAGES_DEBUG), \
    $(if $(strip $(ALL_MODULES.$(m).INSTALLED)),,\
      $(warning $(ALL_MODULES.$(m).MAKEFILE): Module '$(m)' in PRODUCT_PACKAGES_DEBUG has nothing to install!)))
  $(foreach m, $(PRODUCT_PACKAGES_ENG), \
    $(if $(strip $(ALL_MODULES.$(m).INSTALLED)),,\
      $(warning $(ALL_MODULES.$(m).MAKEFILE): Module '$(m)' in PRODUCT_PACKAGES_ENG has nothing to install!)))
  $(foreach m, $(PRODUCT_PACKAGES_TESTS), \
    $(if $(strip $(ALL_MODULES.$(m).INSTALLED)),,\
      $(warning $(ALL_MODULES.$(m).MAKEFILE): Module '$(m)' in PRODUCT_PACKAGES_TESTS has nothing to install!)))
endif

# build/make/core/Makefile contains extra stuff that we don't want to pollute this
# top-level makefile with.  It expects that ALL_DEFAULT_INSTALLED_MODULES
# contains everything that's built during the current make, but it also further
# extends ALL_DEFAULT_INSTALLED_MODULES.
ALL_DEFAULT_INSTALLED_MODULES := $(modules_to_install)
include $(BUILD_SYSTEM)/Makefile
modules_to_install := $(sort $(ALL_DEFAULT_INSTALLED_MODULES))
ALL_DEFAULT_INSTALLED_MODULES :=


# These are additional goals that we build, in order to make sure that there
# is as little code as possible in the tree that doesn't build.
modules_to_check := $(foreach m,$(ALL_MODULES),$(ALL_MODULES.$(m).CHECKED))

# If you would like to build all goals, and not skip any intermediate
# steps, you can pass the "all" modifier goal on the commandline.
ifneq ($(filter all,$(MAKECMDGOALS)),)
modules_to_check += $(foreach m,$(ALL_MODULES),$(ALL_MODULES.$(m).BUILT))
endif

# Build docs as part of checkbuild to catch more breakages.
module_to_check += $(ALL_DOCS)

# for easier debugging
modules_to_check := $(sort $(modules_to_check))
#$(error modules_to_check $(modules_to_check))

# -------------------------------------------------------------------
# This is used to to get the ordering right, you can also use these,
# but they're considered undocumented, so don't complain if their
# behavior changes.
# An internal target that depends on all copied headers
# (see copy_headers.make).  Other targets that need the
# headers to be copied first can depend on this target.
.PHONY: all_copied_headers
all_copied_headers: ;

$(ALL_C_CPP_ETC_OBJECTS): | all_copied_headers

# All the droid stuff, in directories
.PHONY: files
files: $(modules_to_install) \
       $(INSTALLED_ANDROID_INFO_TXT_TARGET)

# -------------------------------------------------------------------

.PHONY: checkbuild
checkbuild: $(modules_to_check) droid_targets

ifeq (true,$(ANDROID_BUILD_EVERYTHING_BY_DEFAULT))
droid: checkbuild
endif

.PHONY: ramdisk
ramdisk: $(INSTALLED_RAMDISK_TARGET)

.PHONY: ramdisk_debug
ramdisk_debug: $(INSTALLED_DEBUG_RAMDISK_TARGET)

.PHONY: userdataimage
userdataimage: $(INSTALLED_USERDATAIMAGE_TARGET)

ifneq (,$(filter userdataimage, $(MAKECMDGOALS)))
$(call dist-for-goals, userdataimage, $(BUILT_USERDATAIMAGE_TARGET))
endif

.PHONY: cacheimage
cacheimage: $(INSTALLED_CACHEIMAGE_TARGET)

.PHONY: bptimage
bptimage: $(INSTALLED_BPTIMAGE_TARGET)

.PHONY: vendorimage
vendorimage: $(INSTALLED_VENDORIMAGE_TARGET)

.PHONY: productimage
productimage: $(INSTALLED_PRODUCTIMAGE_TARGET)

.PHONY: systemextimage
systemextimage: $(INSTALLED_SYSTEM_EXTIMAGE_TARGET)

.PHONY: odmimage
odmimage: $(INSTALLED_ODMIMAGE_TARGET)

.PHONY: systemotherimage
systemotherimage: $(INSTALLED_SYSTEMOTHERIMAGE_TARGET)

.PHONY: superimage_empty
superimage_empty: $(INSTALLED_SUPERIMAGE_EMPTY_TARGET)

.PHONY: bootimage
bootimage: $(INSTALLED_BOOTIMAGE_TARGET)

.PHONY: bootimage_debug
bootimage_debug: $(INSTALLED_DEBUG_BOOTIMAGE_TARGET)

.PHONY: vbmetaimage
vbmetaimage: $(INSTALLED_VBMETAIMAGE_TARGET)

.PHONY: auxiliary
auxiliary: $(INSTALLED_AUX_TARGETS)

# Build files and then package it into the rom formats
.PHONY: droidcore
droidcore: $(filter $(HOST_OUT_ROOT)/%,$(modules_to_install)) \
    $(INSTALLED_SYSTEMIMAGE_TARGET) \
    $(INSTALLED_RAMDISK_TARGET) \
    $(INSTALLED_BOOTIMAGE_TARGET) \
    $(INSTALLED_RADIOIMAGE_TARGET) \
    $(INSTALLED_DEBUG_RAMDISK_TARGET) \
    $(INSTALLED_DEBUG_BOOTIMAGE_TARGET) \
    $(INSTALLED_RECOVERYIMAGE_TARGET) \
    $(INSTALLED_VBMETAIMAGE_TARGET) \
    $(INSTALLED_USERDATAIMAGE_TARGET) \
    $(INSTALLED_CACHEIMAGE_TARGET) \
    $(INSTALLED_BPTIMAGE_TARGET) \
    $(INSTALLED_VENDORIMAGE_TARGET) \
    $(INSTALLED_ODMIMAGE_TARGET) \
    $(INSTALLED_SUPERIMAGE_EMPTY_TARGET) \
    $(INSTALLED_PRODUCTIMAGE_TARGET) \
    $(INSTALLED_SYSTEMOTHERIMAGE_TARGET) \
    $(INSTALLED_FILES_FILE) \
    $(INSTALLED_FILES_JSON) \
    $(INSTALLED_FILES_FILE_VENDOR) \
    $(INSTALLED_FILES_JSON_VENDOR) \
    $(INSTALLED_FILES_FILE_ODM) \
    $(INSTALLED_FILES_JSON_ODM) \
    $(INSTALLED_FILES_FILE_PRODUCT) \
    $(INSTALLED_FILES_JSON_PRODUCT) \
    $(INSTALLED_FILES_FILE_SYSTEM_EXT) \
    $(INSTALLED_FILES_JSON_SYSTEM_EXT) \
    $(INSTALLED_FILES_FILE_SYSTEMOTHER) \
    $(INSTALLED_FILES_JSON_SYSTEMOTHER) \
    $(INSTALLED_FILES_FILE_RAMDISK) \
    $(INSTALLED_FILES_JSON_RAMDISK) \
    $(INSTALLED_FILES_FILE_DEBUG_RAMDISK) \
    $(INSTALLED_FILES_JSON_DEBUG_RAMDISK) \
    $(INSTALLED_FILES_FILE_ROOT) \
    $(INSTALLED_FILES_JSON_ROOT) \
    $(INSTALLED_FILES_FILE_RECOVERY) \
    $(INSTALLED_FILES_JSON_RECOVERY) \
    $(INSTALLED_ANDROID_INFO_TXT_TARGET) \
    auxiliary \
    soong_docs

# dist_files only for putting your library into the dist directory with a full build.
.PHONY: dist_files

.PHONY: apps_only
ifneq ($(TARGET_BUILD_APPS),)
  # If this build is just for apps, only build apps and not the full system by default.

  unbundled_build_modules :=
  ifneq ($(filter all,$(TARGET_BUILD_APPS)),)
    # If they used the magic goal "all" then build all apps in the source tree.
    unbundled_build_modules := $(foreach m,$(sort $(ALL_MODULES)),$(if $(filter APPS,$(ALL_MODULES.$(m).CLASS)),$(m)))
  else
    unbundled_build_modules := $(TARGET_BUILD_APPS)
  endif

  # Dist the installed files if they exist.
  apps_only_installed_files := $(foreach m,$(unbundled_build_modules),$(ALL_MODULES.$(m).INSTALLED))
  $(call dist-for-goals,apps_only, $(apps_only_installed_files))

  # Dist the bundle files if they exist.
  apps_only_bundle_files := $(foreach m,$(unbundled_build_modules),\
    $(if $(ALL_MODULES.$(m).BUNDLE),$(ALL_MODULES.$(m).BUNDLE):$(m)-base.zip))
  $(call dist-for-goals,apps_only, $(apps_only_bundle_files))

  # For uninstallable modules such as static Java library, we have to dist the built file,
  # as <module_name>.<suffix>
  apps_only_dist_built_files := $(foreach m,$(unbundled_build_modules),$(if $(ALL_MODULES.$(m).INSTALLED),,\
      $(if $(ALL_MODULES.$(m).BUILT),$(ALL_MODULES.$(m).BUILT):$(m)$(suffix $(ALL_MODULES.$(m).BUILT)))\
      $(if $(ALL_MODULES.$(m).AAR),$(ALL_MODULES.$(m).AAR):$(m).aar)\
      ))
  $(call dist-for-goals,apps_only, $(apps_only_dist_built_files))

  ifeq ($(EMMA_INSTRUMENT),true)
    $(JACOCO_REPORT_CLASSES_ALL) : $(apps_only_installed_files)
    $(call dist-for-goals,apps_only, $(JACOCO_REPORT_CLASSES_ALL))
  endif

  $(PROGUARD_DICT_ZIP) : $(apps_only_installed_files)
  $(call dist-for-goals,apps_only, $(PROGUARD_DICT_ZIP))

  $(SYMBOLS_ZIP) : $(apps_only_installed_files)
  $(call dist-for-goals,apps_only, $(SYMBOLS_ZIP))

  $(COVERAGE_ZIP) : $(apps_only_installed_files)
  $(call dist-for-goals,apps_only, $(COVERAGE_ZIP))

apps_only: $(unbundled_build_modules)

droid_targets: apps_only

# Combine the NOTICE files for a apps_only build
$(eval $(call combine-notice-files, html, \
    $(target_notice_file_txt), \
    $(target_notice_file_html_or_xml), \
    "Notices for files for apps:", \
    $(TARGET_OUT_NOTICE_FILES), \
    $(apps_only_installed_files)))


else # TARGET_BUILD_APPS
  $(call dist-for-goals, droidcore, \
    $(INTERNAL_UPDATE_PACKAGE_TARGET) \
    $(INTERNAL_OTA_PACKAGE_TARGET) \
    $(INTERNAL_OTA_METADATA) \
    $(INTERNAL_OTA_RETROFIT_DYNAMIC_PARTITIONS_PACKAGE_TARGET) \
    $(BUILT_OTATOOLS_PACKAGE) \
    $(SYMBOLS_ZIP) \
    $(COVERAGE_ZIP) \
    $(APPCOMPAT_ZIP) \
    $(INSTALLED_FILES_FILE) \
    $(INSTALLED_FILES_JSON) \
    $(INSTALLED_FILES_FILE_VENDOR) \
    $(INSTALLED_FILES_JSON_VENDOR) \
    $(INSTALLED_FILES_FILE_ODM) \
    $(INSTALLED_FILES_JSON_ODM) \
    $(INSTALLED_FILES_FILE_PRODUCT) \
    $(INSTALLED_FILES_JSON_PRODUCT) \
    $(INSTALLED_FILES_FILE_SYSTEM_EXT) \
    $(INSTALLED_FILES_JSON_SYSTEM_EXT) \
    $(INSTALLED_FILES_FILE_SYSTEMOTHER) \
    $(INSTALLED_FILES_JSON_SYSTEMOTHER) \
    $(INSTALLED_FILES_FILE_RECOVERY) \
    $(INSTALLED_FILES_JSON_RECOVERY) \
    $(INSTALLED_BUILD_PROP_TARGET) \
    $(BUILT_TARGET_FILES_PACKAGE) \
    $(INSTALLED_ANDROID_INFO_TXT_TARGET) \
    $(INSTALLED_RAMDISK_TARGET) \
   )

  # Put a copy of the radio/bootloader files in the dist dir.
  $(foreach f,$(INSTALLED_RADIOIMAGE_TARGET), \
    $(call dist-for-goals, droidcore, $(f)))

  ifneq ($(ANDROID_BUILD_EMBEDDED),true)
  ifneq ($(TARGET_BUILD_PDK),true)
    $(call dist-for-goals, droidcore, \
      $(APPS_ZIP) \
      $(INTERNAL_EMULATOR_PACKAGE_TARGET) \
      $(PACKAGE_STATS_FILE) \
    )
  endif
  endif

  $(call dist-for-goals, droidcore, \
    $(INSTALLED_FILES_FILE_ROOT) \
    $(INSTALLED_FILES_JSON_ROOT) \
  )

  ifneq ($(BOARD_BUILD_SYSTEM_ROOT_IMAGE),true)
    $(call dist-for-goals, droidcore, \
      $(INSTALLED_FILES_FILE_RAMDISK) \
      $(INSTALLED_FILES_JSON_RAMDISK) \
      $(INSTALLED_FILES_FILE_DEBUG_RAMDISK) \
      $(INSTALLED_FILES_JSON_DEBUG_RAMDISK) \
      $(INSTALLED_DEBUG_RAMDISK_TARGET) \
      $(INSTALLED_DEBUG_BOOTIMAGE_TARGET) \
    )
  endif

  ifeq ($(EMMA_INSTRUMENT),true)
    $(JACOCO_REPORT_CLASSES_ALL) : $(INSTALLED_SYSTEMIMAGE_TARGET)
    $(call dist-for-goals, dist_files, $(JACOCO_REPORT_CLASSES_ALL))
  endif

  # Put XML formatted API files in the dist dir.
  $(TARGET_OUT_COMMON_INTERMEDIATES)/api.xml: $(call java-lib-header-files,android_stubs_current) $(APICHECK)
  $(TARGET_OUT_COMMON_INTERMEDIATES)/system-api.xml: $(call java-lib-header-files,android_system_stubs_current) $(APICHECK)
  $(TARGET_OUT_COMMON_INTERMEDIATES)/test-api.xml: $(call java-lib-header-files,android_test_stubs_current) $(APICHECK)

  api_xmls := $(addprefix $(TARGET_OUT_COMMON_INTERMEDIATES)/,api.xml system-api.xml test-api.xml)
  $(api_xmls):
	$(hide) echo "Converting API file to XML: $@"
	$(hide) mkdir -p $(dir $@)
	$(hide) $(APICHECK_COMMAND) --input-api-jar $< --api-xml $@

  $(call dist-for-goals, dist_files, $(api_xmls))
  api_xmls :=

# Building a full system-- the default is to build droidcore
droid_targets: droidcore dist_files

endif # TARGET_BUILD_APPS

.PHONY: docs
docs: $(ALL_DOCS)

.PHONY: sdk win_sdk winsdk-tools sdk_addon
ALL_SDK_TARGETS := $(INTERNAL_SDK_TARGET)
sdk: $(ALL_SDK_TARGETS)
$(call dist-for-goals,sdk win_sdk, \
    $(ALL_SDK_TARGETS) \
    $(SYMBOLS_ZIP) \
    $(COVERAGE_ZIP) \
    $(APPCOMPAT_ZIP) \
    $(INSTALLED_BUILD_PROP_TARGET) \
)

# umbrella targets to assit engineers in verifying builds
.PHONY: java native target host java-host java-target native-host native-target \
        java-host-tests java-target-tests native-host-tests native-target-tests \
        java-tests native-tests host-tests target-tests tests java-dex \
        native-host-cross
# some synonyms
.PHONY: host-java target-java host-native target-native \
        target-java-tests target-native-tests
host-java : java-host
target-java : java-target
host-native : native-host
target-native : native-target
target-java-tests : java-target-tests
target-native-tests : native-target-tests
tests : host-tests target-tests

# Phony target to run all java compilations that use javac
.PHONY: javac-check

.PHONY: findbugs
findbugs: $(INTERNAL_FINDBUGS_HTML_TARGET) $(INTERNAL_FINDBUGS_XML_TARGET)

LSDUMP_PATHS_FILE := $(PRODUCT_OUT)/lsdump_paths.txt

.PHONY: findlsdumps
findlsdumps: $(LSDUMP_PATHS_FILE) $(LSDUMP_PATHS)

$(LSDUMP_PATHS_FILE): PRIVATE_LSDUMP_PATHS := $(LSDUMP_PATHS)
$(LSDUMP_PATHS_FILE):
	@echo "Generate $@"
	@rm -rf $@ && echo "$(PRIVATE_LSDUMP_PATHS)" | sed -e 's/ /\n/g' > $@

.PHONY: check-elf-files
check-elf-files:

#xxx scrape this from ALL_MODULE_NAME_TAGS
.PHONY: modules
modules:
	@echo "Available sub-modules:"
	@echo "$(call module-names-for-tag-list,$(ALL_MODULE_TAGS))" | \
	      tr -s ' ' '\n' | sort -u

.PHONY: dump-files
dump-files:
	$(info product_target_FILES for $(TARGET_DEVICE) ($(INTERNAL_PRODUCT)):)
	$(foreach p,$(sort $(product_target_FILES)),$(info :   $(p)))
	@echo Successfully dumped product file list

.PHONY: nothing
nothing:
	@echo Successfully read the makefiles.

.PHONY: tidy_only
tidy_only:
	@echo Successfully make tidy_only.

ndk: $(SOONG_OUT_DIR)/ndk.timestamp
.PHONY: ndk

$(call dist-write-file,$(KATI_PACKAGE_MK_DIR)/dist.mk)

$(info [$(call inc_and_print,subdir_makefiles_inc)/$(subdir_makefiles_total)] writing build rules ...)

endif # KATI