1#
2# Copyright (C) 2018 The Android Open Source Project
3#
4# Licensed under the Apache License, Version 2.0 (the "License");
5# you may not use this file except in compliance with the License.
6# You may obtain a copy of the License at
7#
8#      http://www.apache.org/licenses/LICENSE-2.0
9#
10# Unless required by applicable law or agreed to in writing, software
11# distributed under the License is distributed on an "AS IS" BASIS,
12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13# See the License for the specific language governing permissions and
14# limitations under the License.
15#
16
17ifdef BOARD_SYSTEMSDK_VERSIONS
18  # Apps and jars in vendor, product or odm partition are forced to build against System SDK.
19  _cannot_use_platform_apis :=
20  ifneq (,$(filter true,$(LOCAL_VENDOR_MODULE) $(LOCAL_ODM_MODULE) $(LOCAL_PROPRIETARY_MODULE)))
21    # Note: no need to check LOCAL_MODULE_PATH* since LOCAL_[VENDOR|ODM|OEM]_MODULE is already
22    # set correctly before this is included.
23    _cannot_use_platform_apis := true
24  else ifeq ($(LOCAL_PRODUCT_MODULE),true)
25    ifeq ($(PRODUCT_ENFORCE_PRODUCT_PARTITION_INTERFACE),true)
26      _cannot_use_platform_apis := true
27    endif
28  endif
29  ifneq (,$(filter JAVA_LIBRARIES APPS,$(LOCAL_MODULE_CLASS)))
30    ifndef LOCAL_SDK_VERSION
31      ifeq ($(_cannot_use_platform_apis),true)
32        ifeq (,$(LOCAL_IS_RUNTIME_RESOURCE_OVERLAY))
33          # Runtime resource overlays are exempted from building against System SDK.
34          # TODO(b/155027019): remove this, after no product/vendor apps rely on this behavior.
35          LOCAL_SDK_VERSION := system_current
36        endif
37      endif
38    endif
39  endif
40endif
41
42# Ensure that the selected System SDK version is one of the supported versions.
43# The range of support versions becomes narrower when BOARD_SYSTEMSDK_VERSIONS
44# is set, which is a subset of PLATFORM_SYSTEMSDK_VERSIONS.
45ifneq (,$(call has-system-sdk-version,$(LOCAL_SDK_VERSION)))
46  ifneq ($(_cannot_use_platform_apis),true)
47    # apps bundled in system partition can use all system sdk versions provided by the platform
48    _supported_systemsdk_versions := $(PLATFORM_SYSTEMSDK_VERSIONS)
49  else ifdef BOARD_SYSTEMSDK_VERSIONS
50    # When BOARD_SYSTEMSDK_VERSIONS is set, vendors apps are restricted to use those versions
51    # which is equal to or smaller than PLATFORM_SYSTEMSDK_VERSIONS
52    _supported_systemsdk_versions := $(BOARD_SYSTEMSDK_VERSIONS)
53  else
54    # If not, vendor apks are treated equally to system apps
55    _supported_systemsdk_versions := $(PLATFORM_SYSTEMSDK_VERSIONS)
56  endif
57  _system_sdk_version := $(call get-numeric-sdk-version,$(LOCAL_SDK_VERSION))
58  ifneq ($(_system_sdk_version),$(filter $(_system_sdk_version),$(_supported_systemsdk_versions)))
59    $(call pretty-error,Incompatible LOCAL_SDK_VERSION '$(LOCAL_SDK_VERSION)'. \
60           System SDK version '$(_system_sdk_version)' is not supported. Supported versions are: $(_supported_systemsdk_versions))
61  endif
62  _system_sdk_version :=
63  _supported_systemsdk_versions :=
64endif
65