ndk/build/core/main.mk - platform/development - Git at Google

 # Copyright (C) 2009 The Android Open Source Project
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
 #      http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #

 # ====================================================================
 #
 # Define the main configuration variables, and read the host-specific
 # configuration file that is normally generated by build/host-setup.sh
 #
 # ====================================================================

 # The location of the build system files
 BUILD_SYSTEM := $(strip $(dir $(lastword $(MAKEFILE_LIST))))
 BUILD_SYSTEM := $(BUILD_SYSTEM:%/=%)

 # Include common definitions
 include build/core/definitions.mk

 # Where all generated files will be stored during a build
 NDK_OUT := out

 # Read the host-specific configuration file in $(NDK_OUT)
 #
 HOST_CONFIG_MAKE := $(NDK_OUT)/host/config.mk

 ifeq ($(strip $(wildcard $(HOST_CONFIG_MAKE))),)
     $(call __ndk_info,\
     The configuration file '$(HOST_CONFIG_MAKE)' doesnt' exist.)
     $(call __ndk_info,\
        Please run 'build/host-setup.sh' to generate it.)
     $(call __ndk_error, Aborting)
 endif

 include $(HOST_CONFIG_MAKE)
 HOST_PREBUILT_TAG := $(HOST_TAG)

 # Location where all prebuilt binaries for a given host architectures
 # will be stored.
 HOST_PREBUILT := build/prebuilt/$(HOST_TAG)

 # Where all app-specific generated files will be stored
 NDK_APP_OUT := $(NDK_OUT)/apps

 # Where all host-specific generated files will be stored
 NDK_HOST_OUT := $(NDK_OUT)/host/$(HOST_TAG)

 # ====================================================================
 #
 # Read all toolchain-specific configuration files.
 #
 # Each toolchain must have a corresponding config.mk file located
 # in build/toolchains/<name>/ that will be included here.
 #
 # Each one of these files should define the following variables:
 #   TOOLCHAIN_NAME   toolchain name (e.g. arm-eabi-4.2.1)
 #   TOOLCHAIN_ABIS   list of target ABIs supported by the toolchain.
 #
 # Then, it should include $(ADD_TOOLCHAIN) which will perform
 # book-keeping for the build system.
 #
 # ====================================================================

 # the build script to include in each toolchain config.mk
 ADD_TOOLCHAIN := $(BUILD_SYSTEM)/add-toolchain.mk

 # the list of all toolchains in this NDK
 NDK_ALL_TOOLCHAINS :=
 NDK_ALL_ABIS       :=

 TOOLCHAIN_CONFIGS := $(wildcard build/toolchains/*/config.mk)
 $(foreach _config_mk,$(TOOLCHAIN_CONFIGS),\
   $(eval include $(BUILD_SYSTEM)/add-toolchain.mk)\
 )

 #$(info ALL_TOOLCHAINS=$(ALL_TOOLCHAINS))
 NDK_TARGET_TOOLCHAIN := $(firstword $(NDK_ALL_TOOLCHAINS))
 $(call ndk_log, Default toolchain is $(NDK_TARGET_TOOLCHAIN))

 NDK_ALL_TOOLCHAINS   := $(call uniq,$(NDK_ALL_TOOLCHAINS))
 NDK_ALL_ABIS         := $(call uniq,$(NDK_ALL_ABIS))

 $(call ndk_log, This NDK supports the following toolchains and target ABIs:)
 $(foreach tc,$(NDK_ALL_TOOLCHAINS),\
     $(call ndk_log, $(space)$(space)$(tc):  $(NDK_TOOLCHAIN.$(tc).abis))\
 )

 # ====================================================================
 #
 # Read all platform-specific configuration files.
 #
 # Each platform must be located in build/platforms/android-<apilevel>
 # where <apilevel> corresponds to an API level number, with:
 #   3 -> Android 1.5
 #   4 -> next platform release
 #
 # ====================================================================

 NDK_PLATFORMS_ROOT := $(BUILD_SYSTEM)/../platforms
 NDK_ALL_PLATFORMS := $(strip $(notdir $(wildcard $(NDK_PLATFORMS_ROOT)/android-*)))
 $(call ndk_log,Found supported platforms: $(NDK_ALL_PLATFORMS))

 $(foreach _platform,$(NDK_ALL_PLATFORMS),\
   $(eval include $(BUILD_SYSTEM)/add-platform.mk)\
 )

 # ====================================================================
 #
 # Read all application configuration files
 #
 # Each 'application' must have a corresponding Application.mk file
 # located in apps/<name> where <name> is a liberal name that doesn't
 # contain any space in it, used to uniquely identify the
 #
 # See docs/ANDROID-MK.TXT for their specification.
 #
 # ====================================================================

 NDK_ALL_APPS :=

 NDK_APPLICATIONS := $(wildcard apps/*/Application.mk)
 $(foreach _application_mk, $(NDK_APPLICATIONS),\
   $(eval include $(BUILD_SYSTEM)/add-application.mk)\
 )

 # clean up environment, just to be safe
 $(call clear-vars, $(NDK_APP_VARS))

 ifeq ($(strip $(NDK_ALL_APPS)),)
   $(call __ndk_info,\
     The NDK could not find a proper application description under apps/*/Application.mk)
   $(call __ndk_info,\
     Please follow the instructions in docs/NDK-APPS.TXT to write one.)
   $(call __ndk_error, Aborting)
 endif

 ifeq ($(strip $(APP)),)
   $(call __ndk_info,\
     The APP variable is undefined or empty.)
   $(call __ndk_info,\
     Please define it to one of: $(NDK_ALL_APPS))
   $(call __ndk_info,\
     You can also add new applications by writing an Application.mk file.)
   $(call __ndk_info,\
     See docs/APPLICATION-MK.TXT for details.)
   $(call __ndk_error, Aborting)
 endif

 # now check that APP doesn't contain an unknown app name
 # if it does, we ignore them if there is at least one known
 # app name in the list. Otherwise, abort with an error message
 #
 _unknown_apps := $(filter-out $(NDK_ALL_APPS),$(APP))
 _known_apps   := $(filter     $(NDK_ALL_APPS),$(APP))

 NDK_APPS := $(APP)

 $(if $(_unknown_apps),\
   $(if $(_known_apps),\
     $(call __ndk_info,WARNING:\
         Removing unknown names from APP variable: $(_unknown_apps))\
     $(eval NDK_APPS := $(_known_apps))\
    ,\
     $(call __ndk_info,\
         The APP variable contains unknown app names: $(_unknown_apps))\
     $(call __ndk_info,\
         Please use one of: $(NDK_ALL_APPS))\
     $(call __ndk_error, Aborting)\
   )\
 )

 $(call __ndk_info,Building for application '$(NDK_APPS)')

 # ====================================================================
 #
 # Prepare the build for parsing Android.mk files
 #
 # ====================================================================

 # These phony targets are used to control various stages of the build
 .PHONY: all \
         host_libraries host_executables \
         installed_modules \
         executables libraries static_libraries shared_libraries \
         clean clean-config clean-objs-dir \
         clean-executables clean-libraries \
         clean-installed-modules

 # These macros are used in Android.mk to include the corresponding
 # build script that will parse the LOCAL_XXX variable definitions.
 #
 CLEAR_VARS                := $(BUILD_SYSTEM)/clear-vars.mk
 BUILD_HOST_EXECUTABLE     := $(BUILD_SYSTEM)/build-host-executable.mk
 BUILD_HOST_STATIC_LIBRARY := $(BUILD_SYSTEM)/build-host-static-library.mk
 BUILD_STATIC_LIBRARY      := $(BUILD_SYSTEM)/build-static-library.mk
 BUILD_SHARED_LIBRARY      := $(BUILD_SYSTEM)/build-shared-library.mk
 BUILD_EXECUTABLE          := $(BUILD_SYSTEM)/build-executable.mk

 ANDROID_MK_INCLUDED := \
   $(CLEAR_VARS) \
   $(BUILD_HOST_EXECUTABLE) \
   $(BUILD_HOST_STATIC_LIBRARY) \
   $(BUILD_STATIC_LIBRARY) \
   $(BUILD_SHARED_LIBRARY) \
   $(BUILD_EXECUTABLE) \


 # this is the list of directories containing dependency information
 # generated during the build. It will be updated by build scripts
 # when module definitions are parsed.
 #
 ALL_DEPENDENCY_DIRS :=

 # this is the list of all generated files that we would need to clean
 ALL_HOST_EXECUTABLES      :=
 ALL_HOST_STATIC_LIBRARIES :=
 ALL_STATIC_LIBRARIES      :=
 ALL_SHARED_LIBRARIES      :=
 ALL_EXECUTABLES           :=
 ALL_INSTALLED_MODULES     :=

 # the first rule
 all: installed_modules host_libraries host_executables


 $(foreach _app,$(NDK_APPS),\
   $(eval include $(BUILD_SYSTEM)/setup-app.mk)\
 )

 # ====================================================================
 #
 # Now finish the build preparation with a few rules that depend on
 # what has been effectively parsed and recorded previously
 #
 # ====================================================================

 clean: clean-intermediates clean-installed-modules

 distclean: clean clean-config

 installed_modules: libraries $(ALL_INSTALLED_MODULES)
 host_libraries: $(HOST_STATIC_LIBRARIES)
 host_executables: $(HOST_EXECUTABLES)

 static_libraries: $(STATIC_LIBRARIES)
 shared_libraries: $(SHARED_LIBRARIES)
 executables: $(EXECUTABLES)

 libraries: static_libraries shared_libraries

 clean-host-intermediates:
 	$(hide) rm -rf $(HOST_EXECUTABLES) $(HOST_STATIC_LIBRARIES)

 clean-intermediates: clean-host-intermediates
 	$(hide) rm -rf $(EXECUTABLES) $(STATIC_LIBRARIES) $(SHARED_LIBRARIES)

 clean-installed-modules:
 	$(hide) rm -rf $(ALL_INSTALLED_MODULES)

 clean-config:
 	$(hide) rm -f $(CONFIG_MAKE) $(CONFIG_H)

 # include dependency information
 ALL_DEPENDENCY_DIRS := $(sort $(ALL_DEPENDENCY_DIRS))
 -include $(wildcard $(ALL_DEPENDENCY_DIRS:%=%/*.d))
	# Copyright (C) 2009 The Android Open Source Project
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.
	#

	# ====================================================================
	#
	# Define the main configuration variables, and read the host-specific
	# configuration file that is normally generated by build/host-setup.sh
	#
	# ====================================================================

	# The location of the build system files
	BUILD_SYSTEM := $(strip $(dir $(lastword $(MAKEFILE_LIST))))
	BUILD_SYSTEM := $(BUILD_SYSTEM:%/=%)

	# Include common definitions
	include build/core/definitions.mk

	# Where all generated files will be stored during a build
	NDK_OUT := out

	# Read the host-specific configuration file in $(NDK_OUT)
	#
	HOST_CONFIG_MAKE := $(NDK_OUT)/host/config.mk

	ifeq ($(strip $(wildcard $(HOST_CONFIG_MAKE))),)
	$(call __ndk_info,\
	The configuration file '$(HOST_CONFIG_MAKE)' doesnt' exist.)
	$(call __ndk_info,\
	Please run 'build/host-setup.sh' to generate it.)
	$(call __ndk_error, Aborting)
	endif

	include $(HOST_CONFIG_MAKE)
	HOST_PREBUILT_TAG := $(HOST_TAG)

	# Location where all prebuilt binaries for a given host architectures
	# will be stored.
	HOST_PREBUILT := build/prebuilt/$(HOST_TAG)

	# Where all app-specific generated files will be stored
	NDK_APP_OUT := $(NDK_OUT)/apps

	# Where all host-specific generated files will be stored
	NDK_HOST_OUT := $(NDK_OUT)/host/$(HOST_TAG)

	# ====================================================================
	#
	# Read all toolchain-specific configuration files.
	#
	# Each toolchain must have a corresponding config.mk file located
	# in build/toolchains/<name>/ that will be included here.
	#
	# Each one of these files should define the following variables:
	# TOOLCHAIN_NAME toolchain name (e.g. arm-eabi-4.2.1)
	# TOOLCHAIN_ABIS list of target ABIs supported by the toolchain.
	#
	# Then, it should include $(ADD_TOOLCHAIN) which will perform
	# book-keeping for the build system.
	#
	# ====================================================================

	# the build script to include in each toolchain config.mk
	ADD_TOOLCHAIN := $(BUILD_SYSTEM)/add-toolchain.mk

	# the list of all toolchains in this NDK
	NDK_ALL_TOOLCHAINS :=
	NDK_ALL_ABIS :=

	TOOLCHAIN_CONFIGS := $(wildcard build/toolchains/*/config.mk)
	$(foreach _config_mk,$(TOOLCHAIN_CONFIGS),\
	$(eval include $(BUILD_SYSTEM)/add-toolchain.mk)\
	)

	#$(info ALL_TOOLCHAINS=$(ALL_TOOLCHAINS))
	NDK_TARGET_TOOLCHAIN := $(firstword $(NDK_ALL_TOOLCHAINS))
	$(call ndk_log, Default toolchain is $(NDK_TARGET_TOOLCHAIN))

	NDK_ALL_TOOLCHAINS := $(call uniq,$(NDK_ALL_TOOLCHAINS))
	NDK_ALL_ABIS := $(call uniq,$(NDK_ALL_ABIS))

	$(call ndk_log, This NDK supports the following toolchains and target ABIs:)
	$(foreach tc,$(NDK_ALL_TOOLCHAINS),\
	$(call ndk_log, $(space)$(space)$(tc): $(NDK_TOOLCHAIN.$(tc).abis))\
	)

	# ====================================================================
	#
	# Read all platform-specific configuration files.
	#
	# Each platform must be located in build/platforms/android-<apilevel>
	# where <apilevel> corresponds to an API level number, with:
	# 3 -> Android 1.5
	# 4 -> next platform release
	#
	# ====================================================================

	NDK_PLATFORMS_ROOT := $(BUILD_SYSTEM)/../platforms
	NDK_ALL_PLATFORMS := $(strip $(notdir $(wildcard $(NDK_PLATFORMS_ROOT)/android-*)))
	$(call ndk_log,Found supported platforms: $(NDK_ALL_PLATFORMS))

	$(foreach _platform,$(NDK_ALL_PLATFORMS),\
	$(eval include $(BUILD_SYSTEM)/add-platform.mk)\
	)

	# ====================================================================
	#
	# Read all application configuration files
	#
	# Each 'application' must have a corresponding Application.mk file
	# located in apps/<name> where <name> is a liberal name that doesn't
	# contain any space in it, used to uniquely identify the
	#
	# See docs/ANDROID-MK.TXT for their specification.
	#
	# ====================================================================

	NDK_ALL_APPS :=

	NDK_APPLICATIONS := $(wildcard apps/*/Application.mk)
	$(foreach _application_mk, $(NDK_APPLICATIONS),\
	$(eval include $(BUILD_SYSTEM)/add-application.mk)\
	)

	# clean up environment, just to be safe
	$(call clear-vars, $(NDK_APP_VARS))

	ifeq ($(strip $(NDK_ALL_APPS)),)
	$(call __ndk_info,\
	The NDK could not find a proper application description under apps/*/Application.mk)
	$(call __ndk_info,\
	Please follow the instructions in docs/NDK-APPS.TXT to write one.)
	$(call __ndk_error, Aborting)
	endif

	ifeq ($(strip $(APP)),)
	$(call __ndk_info,\
	The APP variable is undefined or empty.)
	$(call __ndk_info,\
	Please define it to one of: $(NDK_ALL_APPS))
	$(call __ndk_info,\
	You can also add new applications by writing an Application.mk file.)
	$(call __ndk_info,\
	See docs/APPLICATION-MK.TXT for details.)
	$(call __ndk_error, Aborting)
	endif

	# now check that APP doesn't contain an unknown app name
	# if it does, we ignore them if there is at least one known
	# app name in the list. Otherwise, abort with an error message
	#
	_unknown_apps := $(filter-out $(NDK_ALL_APPS),$(APP))
	_known_apps := $(filter $(NDK_ALL_APPS),$(APP))

	NDK_APPS := $(APP)

	$(if $(_unknown_apps),\
	$(if $(_known_apps),\
	$(call __ndk_info,WARNING:\
	Removing unknown names from APP variable: $(_unknown_apps))\
	$(eval NDK_APPS := $(_known_apps))\
	,\
	$(call __ndk_info,\
	The APP variable contains unknown app names: $(_unknown_apps))\
	$(call __ndk_info,\
	Please use one of: $(NDK_ALL_APPS))\
	$(call __ndk_error, Aborting)\
	)\
	)

	$(call __ndk_info,Building for application '$(NDK_APPS)')

	# ====================================================================
	#
	# Prepare the build for parsing Android.mk files
	#
	# ====================================================================

	# These phony targets are used to control various stages of the build
	.PHONY: all \
	host_libraries host_executables \
	installed_modules \
	executables libraries static_libraries shared_libraries \
	clean clean-config clean-objs-dir \
	clean-executables clean-libraries \
	clean-installed-modules

	# These macros are used in Android.mk to include the corresponding
	# build script that will parse the LOCAL_XXX variable definitions.
	#
	CLEAR_VARS := $(BUILD_SYSTEM)/clear-vars.mk
	BUILD_HOST_EXECUTABLE := $(BUILD_SYSTEM)/build-host-executable.mk
	BUILD_HOST_STATIC_LIBRARY := $(BUILD_SYSTEM)/build-host-static-library.mk
	BUILD_STATIC_LIBRARY := $(BUILD_SYSTEM)/build-static-library.mk
	BUILD_SHARED_LIBRARY := $(BUILD_SYSTEM)/build-shared-library.mk
	BUILD_EXECUTABLE := $(BUILD_SYSTEM)/build-executable.mk

	ANDROID_MK_INCLUDED := \
	$(CLEAR_VARS) \
	$(BUILD_HOST_EXECUTABLE) \
	$(BUILD_HOST_STATIC_LIBRARY) \
	$(BUILD_STATIC_LIBRARY) \
	$(BUILD_SHARED_LIBRARY) \
	$(BUILD_EXECUTABLE) \


	# this is the list of directories containing dependency information
	# generated during the build. It will be updated by build scripts
	# when module definitions are parsed.
	#
	ALL_DEPENDENCY_DIRS :=

	# this is the list of all generated files that we would need to clean
	ALL_HOST_EXECUTABLES :=
	ALL_HOST_STATIC_LIBRARIES :=
	ALL_STATIC_LIBRARIES :=
	ALL_SHARED_LIBRARIES :=
	ALL_EXECUTABLES :=
	ALL_INSTALLED_MODULES :=

	# the first rule
	all: installed_modules host_libraries host_executables


	$(foreach _app,$(NDK_APPS),\
	$(eval include $(BUILD_SYSTEM)/setup-app.mk)\
	)

	# ====================================================================
	#
	# Now finish the build preparation with a few rules that depend on
	# what has been effectively parsed and recorded previously
	#
	# ====================================================================

	clean: clean-intermediates clean-installed-modules

	distclean: clean clean-config

	installed_modules: libraries $(ALL_INSTALLED_MODULES)
	host_libraries: $(HOST_STATIC_LIBRARIES)
	host_executables: $(HOST_EXECUTABLES)

	static_libraries: $(STATIC_LIBRARIES)
	shared_libraries: $(SHARED_LIBRARIES)
	executables: $(EXECUTABLES)

	libraries: static_libraries shared_libraries

	clean-host-intermediates:
	$(hide) rm -rf $(HOST_EXECUTABLES) $(HOST_STATIC_LIBRARIES)

	clean-intermediates: clean-host-intermediates
	$(hide) rm -rf $(EXECUTABLES) $(STATIC_LIBRARIES) $(SHARED_LIBRARIES)

	clean-installed-modules:
	$(hide) rm -rf $(ALL_INSTALLED_MODULES)

	clean-config:
	$(hide) rm -f $(CONFIG_MAKE) $(CONFIG_H)

	# include dependency information
	ALL_DEPENDENCY_DIRS := $(sort $(ALL_DEPENDENCY_DIRS))
	-include $(wildcard $(ALL_DEPENDENCY_DIRS:%=%/*.d))