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# 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.
#
# this script is included repeatedly by main.mk to add a new toolchain
# definition to the NDK build system.
#
# '_config_mk' must be defined as the path of a toolchain
# configuration file (config.mk) that will be included here.
#
$(call assert-defined, _config_mk)
# The list of variables that must or may be defined
# by the toolchain configuration file
#
NDK_TOOLCHAIN_VARS_REQUIRED := TOOLCHAIN_ABIS TOOLCHAIN_ARCH
NDK_TOOLCHAIN_VARS_OPTIONAL :=
# Clear variables that are supposed to be defined by the config file
$(call clear-vars,$(NDK_TOOLCHAIN_VARS_REQUIRED))
$(call clear-vars,$(NDK_TOOLCHAIN_VARS_OPTIONAL))
# Include the config file
include $(_config_mk)
# Plug in the undefined
ifeq ($(TOOLCHAIN_ABIS)$(TOOLCHAIN_ARCH),)
ifeq (1,$(words $(filter-out $(NDK_KNOWN_ARCHS),$(NDK_FOUND_ARCHS))))
TOOLCHAIN_ARCH := $(filter-out $(NDK_KNOWN_ARCHS),$(NDK_FOUND_ARCHS))
TOOLCHAIN_ABIS := $(TOOLCHAIN_ARCH) $(NDK_KNOWN_ABIS:%=$(TOOLCHAIN_ARCH)%)
endif
endif
ifeq ($(TOOLCHAIN_ABIS)$(TOOLCHAIN_ARCH),)
# Ignore if both TOOLCHAIN_ABIS and TOOLCHAIN_ARCH are not defined
else
# Check that the proper variables were defined
$(call check-required-vars,$(NDK_TOOLCHAIN_VARS_REQUIRED),$(_config_mk))
# Check that the file didn't do something stupid
$(call assert-defined, _config_mk)
# Now record the toolchain-specific information
_dir := $(patsubst %/,%,$(dir $(_config_mk)))
_name := $(notdir $(_dir))
_arch := $(TOOLCHAIN_ARCH)
_abis := $(TOOLCHAIN_ABIS)
_toolchain := NDK_TOOLCHAIN.$(_name)
# check that the toolchain name is unique
$(if $(strip $($(_toolchain).defined)),\
$(call __ndk_error,Toolchain $(_name) defined in $(_parent) is\
already defined in $(NDK_TOOLCHAIN.$(_name).defined)))
$(_toolchain).defined := $(_toolchain_config)
$(_toolchain).arch := $(_arch)
$(_toolchain).abis := $(_abis)
$(_toolchain).setup := $(wildcard $(_dir)/setup.mk)
$(if $(strip $($(_toolchain).setup)),,\
$(call __ndk_error, Toolchain $(_name) lacks a setup.mk in $(_dir)))
NDK_ALL_TOOLCHAINS += $(_name)
NDK_ALL_ARCHS += $(_arch)
NDK_ALL_ABIS += $(_abis)
# NDK_ABI.<abi>.toolchains records the list of toolchains that support
# a given ABI
#
$(foreach _abi,$(_abis),\
$(eval NDK_ABI.$(_abi).toolchains += $(_name)) \
$(eval NDK_ABI.$(_abi).arch := $(sort $(NDK_ABI.$(_abi).arch) $(_arch)))\
)
NDK_ARCH.$(_arch).toolchains += $(_name)
NDK_ARCH.$(_arch).abis := $(sort $(NDK_ARCH.$(_arch).abis) $(_abis))
endif
# done