2 # Copyright (C) 2008 The Android Open Source Project
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
8 # http://www.apache.org/licenses/LICENSE-2.0
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.
18 # Handle various build version information.
20 # Guarantees that the following are defined:
22 # PLATFORM_SDK_VERSION
23 # PLATFORM_VERSION_CODENAME
24 # DEFAULT_APP_TARGET_SDK
30 # Look for an optional file containing overrides of the defaults,
31 # but don't cry if we don't find it. We could just use -include, but
32 # the build.prop target also wants INTERNAL_BUILD_ID_MAKEFILE to be set
35 INTERNAL_BUILD_ID_MAKEFILE := $(wildcard $(BUILD_SYSTEM)/build_id.mk)
36 ifneq "" "$(INTERNAL_BUILD_ID_MAKEFILE)"
37 include $(INTERNAL_BUILD_ID_MAKEFILE)
40 ifeq "" "$(PLATFORM_VERSION)"
41 # This is the canonical definition of the platform version,
42 # which is the version that we reveal to the end user.
43 # Update this value when the platform version changes (rather
44 # than overriding it somewhere else). Can be an arbitrary string.
45 PLATFORM_VERSION := 6.0
48 ifeq "" "$(PLATFORM_SDK_VERSION)"
49 # This is the canonical definition of the SDK version, which defines
50 # the set of APIs and functionality available in the platform. It
51 # is a single integer that increases monotonically as updates to
52 # the SDK are released. It should only be incremented when the APIs for
53 # the new release are frozen (so that developers don't write apps against
54 # intermediate builds). During development, this number remains at the
55 # SDK version the branch is based on and PLATFORM_VERSION_CODENAME holds
56 # the code-name of the new development work.
57 PLATFORM_SDK_VERSION := 23
60 ifeq "" "$(PLATFORM_VERSION_CODENAME)"
61 # This is the current development code-name, if the build is not a final
62 # release build. If this is a final release build, it is simply "REL".
63 PLATFORM_VERSION_CODENAME := REL
65 # This is all of the development codenames that are active. Should be either
66 # the same as PLATFORM_VERSION_CODENAME or a comma-separated list of additional
67 # codenames after PLATFORM_VERSION_CODENAME.
68 PLATFORM_VERSION_ALL_CODENAMES := $(PLATFORM_VERSION_CODENAME)
71 ifeq "REL" "$(PLATFORM_VERSION_CODENAME)"
72 PLATFORM_PREVIEW_SDK_VERSION := 0
74 ifeq "" "$(PLATFORM_PREVIEW_SDK_VERSION)"
75 # This is the definition of a preview SDK version over and above the current
76 # platform SDK version. Unlike the platform SDK version, a higher value
77 # for preview SDK version does NOT mean that all prior preview APIs are
78 # included. Packages reading this value to determine compatibility with
79 # known APIs should check that this value is precisely equal to the preview
80 # SDK version the package was built for, otherwise it should fall back to
81 # assuming the device can only support APIs as of the previous official
83 # This value will always be 0 for release builds.
84 PLATFORM_PREVIEW_SDK_VERSION := 0
88 ifeq "" "$(DEFAULT_APP_TARGET_SDK)"
89 # This is the default minSdkVersion and targetSdkVersion to use for
90 # all .apks created by the build system. It can be overridden by explicitly
91 # setting these in the .apk's AndroidManifest.xml. It is either the code
92 # name of the development build or, if this is a release build, the official
93 # SDK version of this release.
94 ifeq "REL" "$(PLATFORM_VERSION_CODENAME)"
95 DEFAULT_APP_TARGET_SDK := $(PLATFORM_SDK_VERSION)
97 DEFAULT_APP_TARGET_SDK := $(PLATFORM_VERSION_CODENAME)
101 ifeq "" "$(PLATFORM_SECURITY_PATCH)"
102 # Used to indicate the security patch that has been applied to the device.
103 # Can be an arbitrary string, but must be a single word.
105 # If there is no $PLATFORM_SECURITY_PATCH set, keep it empty.
106 PLATFORM_SECURITY_PATCH := 2016-10-05
109 ifeq "" "$(PLATFORM_BASE_OS)"
110 # Used to indicate the base os applied to the device.
111 # Can be an arbitrary string, but must be a single word.
113 # If there is no $PLATFORM_BASE_OS set, keep it empty.
117 ifeq "" "$(BUILD_ID)"
118 # Used to signify special builds. E.g., branches and/or releases,
119 # like "M5-RC7". Can be an arbitrary string, but must be a single
120 # word and a valid file name.
122 # If there is no BUILD_ID set, make it obvious.
126 ifeq "" "$(BUILD_NUMBER)"
127 # BUILD_NUMBER should be set to the source control value that
128 # represents the current state of the source code. E.g., a
129 # perforce changelist number or a git hash. Can be an arbitrary string
130 # (to allow for source control that uses something other than numbers),
131 # but must be a single word and a valid file name.
133 # If no BUILD_NUMBER is set, create a useful "I am an engineering build
134 # from this date/time" value. Make it start with a non-digit so that
135 # anyone trying to parse it as an integer will probably get "0".
136 BUILD_NUMBER := eng.$(USER).$(shell date +%Y%m%d.%H%M%S)