168 lines
6.7 KiB
Makefile
168 lines
6.7 KiB
Makefile
# Copyright (C) 2009 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# this file is included repeatedly from build/core/setup-abi.mk and is used
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# to setup the target toolchain for a given platform/abi combination.
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#
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$(call assert-defined,TARGET_PLATFORM_LEVEL TARGET_ARCH TARGET_ARCH_ABI)
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$(call assert-defined,NDK_APPS NDK_APP_STL)
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# Check that we have a toolchain that supports the current ABI.
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# NOTE: If NDK_TOOLCHAIN is defined, we're going to use it.
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ifndef NDK_TOOLCHAIN
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# TODO: Remove all the multiple-toolchain configuration stuff. We only have
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# Clang.
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# This is a sorted list of toolchains that support the given ABI. For older
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# NDKs this was a bit more complicated, but now we just have the GCC and the
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# Clang toolchains with GCC being first (named "*-4.9", whereas clang is
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# "*-clang").
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TARGET_TOOLCHAIN_LIST := \
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$(strip $(sort $(NDK_ABI.$(TARGET_ARCH_ABI).toolchains)))
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ifneq ($(words $(TARGET_TOOLCHAIN_LIST)),1)
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$(call __ndk_error,Expected two items in TARGET_TOOLCHAIN_LIST, \
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found "$(TARGET_TOOLCHAIN_LIST)")
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endif
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ifndef TARGET_TOOLCHAIN_LIST
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$(call __ndk_info,There is no toolchain that supports the $(TARGET_ARCH_ABI) ABI.)
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$(call __ndk_info,Please modify the APP_ABI definition in $(NDK_APP_APPLICATION_MK) to use)
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$(call __ndk_info,a set of the following values: $(NDK_ALL_ABIS))
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$(call __ndk_error,Aborting)
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endif
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# We default to using Clang, which is the last item in the list.
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TARGET_TOOLCHAIN := $(lastword $(TARGET_TOOLCHAIN_LIST))
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$(call ndk_log,Using target toolchain '$(TARGET_TOOLCHAIN)' for '$(TARGET_ARCH_ABI)' ABI)
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else # NDK_TOOLCHAIN is not empty
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TARGET_TOOLCHAIN_LIST := $(strip $(filter $(NDK_TOOLCHAIN),$(NDK_ABI.$(TARGET_ARCH_ABI).toolchains)))
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ifndef TARGET_TOOLCHAIN_LIST
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$(call __ndk_info,The selected toolchain ($(NDK_TOOLCHAIN)) does not support the $(TARGET_ARCH_ABI) ABI.)
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$(call __ndk_info,Please modify the APP_ABI definition in $(NDK_APP_APPLICATION_MK) to use)
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$(call __ndk_info,a set of the following values: $(NDK_TOOLCHAIN.$(NDK_TOOLCHAIN).abis))
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$(call __ndk_info,Or change your NDK_TOOLCHAIN definition.)
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$(call __ndk_error,Aborting)
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endif
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TARGET_TOOLCHAIN := $(NDK_TOOLCHAIN)
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endif # NDK_TOOLCHAIN is not empty
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# Define default values for TOOLCHAIN_NAME, this can be overriden in
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# the setup file.
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TOOLCHAIN_NAME := $(TARGET_TOOLCHAIN)
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TOOLCHAIN_VERSION := $(call last,$(subst -,$(space),$(TARGET_TOOLCHAIN)))
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# compute NDK_APP_DST_DIR as the destination directory for the generated files
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NDK_APP_DST_DIR := $(NDK_APP_LIBS_OUT)/$(TARGET_ARCH_ABI)
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# Default build commands, can be overriden by the toolchain's setup script
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include $(BUILD_SYSTEM)/default-build-commands.mk
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# now call the toolchain-specific setup script
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include $(NDK_TOOLCHAIN.$(TARGET_TOOLCHAIN).setup)
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# Setup sysroot variables.
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#
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# Note that these are not needed for the typical case of invoking Clang, as
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# Clang already knows where the sysroot is relative to itself. We still need to
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# manually refer to these in some places because other tools such as yasm and
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# don't have this knowledge.
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# SYSROOT_INC points to a directory that contains all public header files for a
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# given platform.
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ifndef NDK_UNIFIED_SYSROOT_PATH
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NDK_UNIFIED_SYSROOT_PATH := $(TOOLCHAIN_ROOT)/sysroot
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endif
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# TODO: Have the driver add the library path to -rpath-link.
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SYSROOT_INC := $(NDK_UNIFIED_SYSROOT_PATH)
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SYSROOT_LIB_DIR := $(NDK_UNIFIED_SYSROOT_PATH)/usr/lib/$(TOOLCHAIN_NAME)
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SYSROOT_API_LIB_DIR := $(SYSROOT_LIB_DIR)/$(TARGET_PLATFORM_LEVEL)
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# API-specific library directory comes first to make the linker prefer shared
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# libs over static libs.
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SYSROOT_LINK_ARG := -L $(SYSROOT_API_LIB_DIR) -L $(SYSROOT_LIB_DIR)
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# Architecture specific headers like asm/ and machine/ are installed to an
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# arch-$ARCH subdirectory of the sysroot.
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SYSROOT_ARCH_INC_ARG := \
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-isystem $(SYSROOT_INC)/usr/include/$(TOOLCHAIN_NAME)
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NDK_TOOLCHAIN_RESOURCE_DIR := $(shell $(TARGET_CXX) -print-resource-dir)
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NDK_TOOLCHAIN_LIB_DIR := $(strip $(NDK_TOOLCHAIN_RESOURCE_DIR))/lib/linux
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clean-installed-binaries::
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# free the dictionary of LOCAL_MODULE definitions
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$(call modules-clear)
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# now parse the Android.mk for the application, this records all
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# module declarations, but does not populate the dependency graph yet.
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include $(NDK_APP_BUILD_SCRIPT)
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# Avoid computing sanitizer/wrap.sh things in the DUMP_VAR case because both of
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# these will create build rules and we want to avoid that. The DUMP_VAR case
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# also doesn't parse the module definitions, so we're missing a lot of the
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# information we need.
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ifeq (,$(DUMP_VAR))
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# Comes after NDK_APP_BUILD_SCRIPT because we need to know if *any* module
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# has -fsanitize in its ldflags.
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include $(BUILD_SYSTEM)/sanitizers.mk
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include $(BUILD_SYSTEM)/openmp.mk
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include $(BUILD_SYSTEM)/install_stl.mk
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ifneq ($(NDK_APP_WRAP_SH_$(TARGET_ARCH_ABI)),)
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include $(BUILD_SYSTEM)/install_wrap_sh.mk
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endif
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endif
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# recompute all dependencies between modules
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$(call modules-compute-dependencies)
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# for debugging purpose
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ifdef NDK_DEBUG_MODULES
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$(call modules-dump-database)
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endif
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# now, really build the modules, the second pass allows one to deal
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# with exported values
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$(foreach __pass2_module,$(__ndk_modules),\
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$(eval LOCAL_MODULE := $(__pass2_module))\
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$(eval include $(BUILD_SYSTEM)/build-binary.mk)\
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)
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# Now compute the closure of all module dependencies.
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#
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# If APP_MODULES is not defined in the Application.mk, we
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# will build all modules that were listed from the top-level Android.mk
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# and the installable imported ones they depend on
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#
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ifeq ($(strip $(NDK_APP_MODULES)),)
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WANTED_MODULES := $(call modules-get-all-installable,$(modules-get-top-list))
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ifeq (,$(strip $(WANTED_MODULES)))
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WANTED_MODULES := $(modules-get-top-list)
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$(call ndk_log,[$(TARGET_ARCH_ABI)] No installable modules in project - forcing static library build)
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endif
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else
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WANTED_MODULES := $(call module-get-all-dependencies,$(NDK_APP_MODULES))
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endif
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$(call ndk_log,[$(TARGET_ARCH_ABI)] Modules to build: $(WANTED_MODULES))
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WANTED_INSTALLED_MODULES += $(call map,module-get-installed,$(WANTED_MODULES))
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