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$(call assert-defined, _config_mk)
23
24# The list of variables that must or may be defined
25# by the toolchain configuration file
26#
27NDK_TOOLCHAIN_VARS_REQUIRED := TOOLCHAIN_ABIS TOOLCHAIN_ARCH
28NDK_TOOLCHAIN_VARS_OPTIONAL :=
29
30# Clear variables that are supposed to be defined by the config file
31$(call clear-vars,$(NDK_TOOLCHAIN_VARS_REQUIRED))
32$(call clear-vars,$(NDK_TOOLCHAIN_VARS_OPTIONAL))
33
34# Include the config file
35include $(_config_mk)
36
37# Check that the proper variables were defined
38$(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_arch := $(TOOLCHAIN_ARCH)
47_abis := $(TOOLCHAIN_ABIS)
48
49_toolchain := NDK_TOOLCHAIN.$(_name)
50
51# check that the toolchain name is unique
52$(if $(strip $($(_toolchain).defined)),\
53  $(call __ndk_error,Toolchain $(_name) defined in $(_parent) is\
54                     already defined in $(NDK_TOOLCHAIN.$(_name).defined)))
55
56$(_toolchain).defined := $(_toolchain_config)
57$(_toolchain).arch    := $(_arch)
58$(_toolchain).abis    := $(_abis)
59$(_toolchain).setup   := $(wildcard $(_dir)/setup.mk)
60
61$(if $(strip $($(_toolchain).setup)),,\
62  $(call __ndk_error, Toolchain $(_name) lacks a setup.mk in $(_dir)))
63
64NDK_ALL_TOOLCHAINS += $(_name)
65NDK_ALL_ARCHS      += $(_arch)
66NDK_ALL_ABIS       += $(_abis)
67
68# NDK_ABI.<abi>.toolchains records the list of toolchains that support
69# a given ABI
70#
71$(foreach _abi,$(_abis),\
72    $(eval NDK_ABI.$(_abi).toolchains += $(_name)) \
73    $(eval NDK_ABI.$(_abi).arch := $(sort $(NDK_ABI.$(_abi).arch) $(_arch)))\
74)
75
76NDK_ARCH.$(_arch).toolchains += $(_name)
77NDK_ARCH.$(_arch).abis := $(sort $(NDK_ARCH.$(_arch).abis) $(_abis))
78
79# done
80