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 $(_config_mk)
36
37# Plug in the undefined
38ifeq ($(TOOLCHAIN_ABIS)$(TOOLCHAIN_ARCH),)
39ifeq (1,$(words $(filter-out $(NDK_KNOWN_ARCHS),$(NDK_FOUND_ARCHS))))
40TOOLCHAIN_ARCH := $(filter-out $(NDK_KNOWN_ARCHS),$(NDK_FOUND_ARCHS))
41TOOLCHAIN_ABIS := $(TOOLCHAIN_ARCH) $(NDK_KNOWN_ABIS:%=$(TOOLCHAIN_ARCH)%) $(NDK_KNOWN_ABIS:%=$(TOOLCHAIN_ARCH)bc%)
42endif
43endif
44
45ifeq ($(TOOLCHAIN_ABIS)$(TOOLCHAIN_ARCH),)
46# Ignore if both TOOLCHAIN_ABIS and TOOLCHAIN_ARCH are not defined
47else
48
49# Check that the proper variables were defined
50$(call check-required-vars,$(NDK_TOOLCHAIN_VARS_REQUIRED),$(_config_mk))
51
52# Check that the file didn't do something stupid
53$(call assert-defined, _config_mk)
54
55# Now record the toolchain-specific information
56_dir  := $(patsubst %/,%,$(dir $(_config_mk)))
57_name := $(notdir $(_dir))
58_arch := $(TOOLCHAIN_ARCH)
59_abis := $(TOOLCHAIN_ABIS)
60
61_toolchain := NDK_TOOLCHAIN.$(_name)
62
63# check that the toolchain name is unique
64$(if $(strip $($(_toolchain).defined)),\
65  $(call __ndk_error,Toolchain $(_name) defined in $(_parent) is\
66                     already defined in $(NDK_TOOLCHAIN.$(_name).defined)))
67
68$(_toolchain).defined := $(_toolchain_config)
69$(_toolchain).arch    := $(_arch)
70$(_toolchain).abis    := $(_abis)
71$(_toolchain).setup   := $(wildcard $(_dir)/setup.mk)
72
73$(if $(strip $($(_toolchain).setup)),,\
74  $(call __ndk_error, Toolchain $(_name) lacks a setup.mk in $(_dir)))
75
76NDK_ALL_TOOLCHAINS += $(_name)
77NDK_ALL_ARCHS      += $(_arch)
78NDK_ALL_ABIS       += $(_abis)
79
80# NDK_ABI.<abi>.toolchains records the list of toolchains that support
81# a given ABI
82#
83$(foreach _abi,$(_abis),\
84    $(eval NDK_ABI.$(_abi).toolchains += $(_name)) \
85    $(eval NDK_ABI.$(_abi).arch := $(sort $(NDK_ABI.$(_abi).arch) $(_arch)))\
86)
87
88NDK_ARCH.$(_arch).toolchains += $(_name)
89NDK_ARCH.$(_arch).abis := $(sort $(NDK_ARCH.$(_arch).abis) $(_abis))
90
91endif
92
93# done
94