1 # Copyright (C) 2009 The Android Open Source Project 2 # 3 # Licensed under the Apache License, Version 2.0 (the "License"); 4 # you may not use this file except in compliance with the License. 5 # You may obtain a copy of the License at 6 # 7 # http://www.apache.org/licenses/LICENSE-2.0 8 # 9 # Unless required by applicable law or agreed to in writing, software 10 # distributed under the License is distributed on an "AS IS" BASIS, 11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 # See the License for the specific language governing permissions and 13 # limitations under the License. 14 # 15 16 # this script is included repeatedly by main.mk to add a new toolchain 17 # definition to the NDK build system. 18 # 19 # '_config_mk' must be defined as the path of a toolchain 20 # configuration file (config.mk) that will be included here. 21 # 22 $(call assert-defined, _config_mk) 23 24 # The list of variables that must or may be defined 25 # by the toolchain configuration file 26 # 27 NDK_TOOLCHAIN_VARS_REQUIRED := TOOLCHAIN_ABIS 28 NDK_TOOLCHAIN_VARS_OPTIONAL := 29 30 # Clear variables that are supposed to be defined by the config file 31 $(call clear-vars,$(NDK_TOOLCHAIN_VARS_REQUIRED)) 32 $(call clear-vars,$(NDK_TOOLCHAIN_VARS_OPTIONAL)) 33 34 # Include the config file 35 include $(_config_mk) 36 37 # Check that the proper variables were defined 38 $(call check-required-vars,$(NDK_TOOLCHAIN_VARS_REQUIRED),$(_config_mk)) 39 40 # Check that the file didn't do something stupid 41 $(call assert-defined, _config_mk) 42 43 # Now record the toolchain-specific information 44 _dir := $(patsubst %/,%,$(dir $(_config_mk))) 45 _name := $(notdir $(_dir)) 46 _abis := $(TOOLCHAIN_ABIS) 47 48 _toolchain := NDK_TOOLCHAIN.$(_name) 49 50 # check that the toolchain name is unique 51 $(if $(strip $($(_toolchain).defined)),\ 52 $(call __ndk_error,Toolchain $(_name) defined in $(_parent) is\ 53 already defined in $(NDK_TOOLCHAIN.$(_name).defined))) 54 55 $(_toolchain).defined := $(_toolchain_config) 56 $(_toolchain).abis := $(_abis) 57 $(_toolchain).setup := $(wildcard $(_dir)/setup.mk) 58 59 $(if $(strip $($(_toolchain).setup)),,\ 60 $(call __ndk_error, Toolchain $(_name) lacks a setup.mk in $(_dir))) 61 62 NDK_ALL_TOOLCHAINS += $(_name) 63 NDK_ALL_ABIS += $(_abis) 64 65 # NKD_ABI.<abi>.toolchains records the list of toolchains that support 66 # a given ABI 67 # 68 $(foreach _abi,$(_abis),\ 69 $(eval NDK_ABI.$(_abi).toolchains += $(_name)) \ 70 ) 71 72 # done 73
