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
31 # Look for an optional file containing overrides of the defaults,
32 # but don't cry if we don't find it. We could just use -include, but
33 # the build.prop target also wants INTERNAL_BUILD_ID_MAKEFILE to be set
36 INTERNAL_BUILD_ID_MAKEFILE := $(wildcard $(BUILD_SYSTEM)/build_id.mk)
37 ifneq "" "$(INTERNAL_BUILD_ID_MAKEFILE)"
38 include $(INTERNAL_BUILD_ID_MAKEFILE)
41 ifeq "" "$(PLATFORM_VERSION)"
42 # This is the canonical definition of the platform version,
43 # which is the version that we reveal to the end user.
44 # Update this value when the platform version changes (rather
45 # than overriding it somewhere else). Can be an arbitrary string.
46 PLATFORM_VERSION := 7.0
49 ifeq "" "$(PLATFORM_SDK_VERSION)"
50 # This is the canonical definition of the SDK version, which defines
51 # the set of APIs and functionality available in the platform. It
52 # is a single integer that increases monotonically as updates to
53 # the SDK are released. It should only be incremented when the APIs for
54 # the new release are frozen (so that developers don't write apps against
55 # intermediate builds). During development, this number remains at the
56 # SDK version the branch is based on and PLATFORM_VERSION_CODENAME holds
57 # the code-name of the new development work.
58 PLATFORM_SDK_VERSION := 24
61 ifeq "" "$(PLATFORM_JACK_MIN_SDK_VERSION)"
62 # This is definition of the min SDK version given to Jack for the current
63 # platform. For released version it should be the same as
64 # PLATFORM_SDK_VERSION. During development, this number may be incremented
65 # before PLATFORM_SDK_VERSION if the plateform starts to add new java
67 PLATFORM_JACK_MIN_SDK_VERSION := 24
70 ifeq "" "$(PLATFORM_VERSION_CODENAME)"
71 # This is the current development code-name, if the build is not a final
72 # release build. If this is a final release build, it is simply "REL".
73 PLATFORM_VERSION_CODENAME := REL
75 # This is all of the development codenames that are active. Should be either
76 # the same as PLATFORM_VERSION_CODENAME or a comma-separated list of additional
77 # codenames after PLATFORM_VERSION_CODENAME.
78 PLATFORM_VERSION_ALL_CODENAMES := $(PLATFORM_VERSION_CODENAME)
81 ifeq "REL" "$(PLATFORM_VERSION_CODENAME)"
82 PLATFORM_PREVIEW_SDK_VERSION := 0
84 ifeq "" "$(PLATFORM_PREVIEW_SDK_VERSION)"
85 # This is the definition of a preview SDK version over and above the current
86 # platform SDK version. Unlike the platform SDK version, a higher value
87 # for preview SDK version does NOT mean that all prior preview APIs are
88 # included. Packages reading this value to determine compatibility with
89 # known APIs should check that this value is precisely equal to the preview
90 # SDK version the package was built for, otherwise it should fall back to
91 # assuming the device can only support APIs as of the previous official
93 # This value will always be 0 for release builds.
94 PLATFORM_PREVIEW_SDK_VERSION := 0
98 ifeq "" "$(DEFAULT_APP_TARGET_SDK)"
99 # This is the default minSdkVersion and targetSdkVersion to use for
100 # all .apks created by the build system. It can be overridden by explicitly
101 # setting these in the .apk's AndroidManifest.xml. It is either the code
102 # name of the development build or, if this is a release build, the official
103 # SDK version of this release.
104 ifeq "REL" "$(PLATFORM_VERSION_CODENAME)"
105 DEFAULT_APP_TARGET_SDK := $(PLATFORM_SDK_VERSION)
107 DEFAULT_APP_TARGET_SDK := $(PLATFORM_VERSION_CODENAME)
111 ifeq "" "$(PLATFORM_SECURITY_PATCH)"
112 # Used to indicate the security patch that has been applied to the device.
113 # It must signify that the build includes all security patches issued up through the designated Android Public Security Bulletin.
114 # It must be of the form "YYYY-MM-DD" on production devices.
115 # It must match one of the Android Security Patch Level strings of the Public Security Bulletins.
116 # If there is no $PLATFORM_SECURITY_PATCH set, keep it empty.
117 PLATFORM_SECURITY_PATCH := 2017-03-05
120 ifeq "" "$(PLATFORM_BASE_OS)"
121 # Used to indicate the base os applied to the device.
122 # Can be an arbitrary string, but must be a single word.
124 # If there is no $PLATFORM_BASE_OS set, keep it empty.
128 ifeq "" "$(BUILD_ID)"
129 # Used to signify special builds. E.g., branches and/or releases,
130 # like "M5-RC7". Can be an arbitrary string, but must be a single
131 # word and a valid file name.
133 # If there is no BUILD_ID set, make it obvious.
137 ifeq "" "$(BUILD_DATETIME)"
138 # Used to reproduce builds by setting the same time. Must be the number
139 # of seconds since the Epoch.
140 BUILD_DATETIME := $(shell date +%s)
143 ifneq (,$(findstring Darwin,$(shell uname -sm)))
144 DATE := date -r $(BUILD_DATETIME)
146 DATE := date -d @$(BUILD_DATETIME)
149 ifeq "" "$(BUILD_NUMBER)"
150 # BUILD_NUMBER should be set to the source control value that
151 # represents the current state of the source code. E.g., a
152 # perforce changelist number or a git hash. Can be an arbitrary string
153 # (to allow for source control that uses something other than numbers),
154 # but must be a single word and a valid file name.
156 # If no BUILD_NUMBER is set, create a useful "I am an engineering build
157 # from this date/time" value. Make it start with a non-digit so that
158 # anyone trying to parse it as an integer will probably get "0".
159 BUILD_NUMBER := eng.$(shell echo $${USER:0:6}).$(shell $(DATE) +%Y%m%d.%H%M%S)