version_defaults.mk revision c54e7f5658c927bf7caa1467eda16df45a3067ed
1# 2# Copyright (C) 2008 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 17# 18# Handle various build version information. 19# 20# Guarantees that the following are defined: 21# PLATFORM_VERSION 22# PLATFORM_SDK_VERSION 23# PLATFORM_VERSION_CODENAME 24# DEFAULT_APP_TARGET_SDK 25# BUILD_ID 26# BUILD_NUMBER 27# BUILD_DATETIME 28# PLATFORM_SECURITY_PATCH 29# 30 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 34# if the file exists. 35# 36INTERNAL_BUILD_ID_MAKEFILE := $(wildcard $(BUILD_SYSTEM)/build_id.mk) 37ifneq "" "$(INTERNAL_BUILD_ID_MAKEFILE)" 38 include $(INTERNAL_BUILD_ID_MAKEFILE) 39endif 40 41ifeq "" "$(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 47 # When you add a new PLATFORM_VERSION which will result in a new 48 # PLATFORM_SDK_VERSION please ensure you add a corresponding isAtLeast* 49 # method in the following java file: 50 # frameworks/support/compat/gingerbread/android/support/v4/os/BuildCompat.java 51 52 # When you change PLATFORM_VERSION for a given PLATFORM_SDK_VERSION 53 # please add that PLATFORM_VERSION to the following text file: 54 # cts/tests/tests/os/assets/platform_versions.txt 55 PLATFORM_VERSION := 7.1.2 56endif 57 58ifeq "" "$(PLATFORM_SDK_VERSION)" 59 # This is the canonical definition of the SDK version, which defines 60 # the set of APIs and functionality available in the platform. It 61 # is a single integer that increases monotonically as updates to 62 # the SDK are released. It should only be incremented when the APIs for 63 # the new release are frozen (so that developers don't write apps against 64 # intermediate builds). During development, this number remains at the 65 # SDK version the branch is based on and PLATFORM_VERSION_CODENAME holds 66 # the code-name of the new development work. 67 68 # When you change PLATFORM_SDK_VERSION please ensure you also update the 69 # corresponding methods for isAtLeast* in the following java file: 70 # frameworks/support/compat/gingerbread/android/support/v4/os/BuildCompat.java 71 72 # When you increment the PLATFORM_SDK_VERSION please ensure you also 73 # clear out the following text file of all older PLATFORM_VERSION's: 74 # cts/tests/tests/os/assets/platform_versions.txt 75 PLATFORM_SDK_VERSION := 25 76endif 77 78ifeq "" "$(PLATFORM_JACK_MIN_SDK_VERSION)" 79 # This is definition of the min SDK version given to Jack for the current 80 # platform. For released version it should be the same as 81 # PLATFORM_SDK_VERSION. During development, this number may be incremented 82 # before PLATFORM_SDK_VERSION if the plateform starts to add new java 83 # language supports. 84 PLATFORM_JACK_MIN_SDK_VERSION := o-b1 85endif 86 87ifeq "" "$(PLATFORM_VERSION_CODENAME)" 88 # This is the current development code-name, if the build is not a final 89 # release build. If this is a final release build, it is simply "REL". 90 PLATFORM_VERSION_CODENAME := REL 91 92 # This is all of the development codenames that are active. Should be either 93 # the same as PLATFORM_VERSION_CODENAME or a comma-separated list of additional 94 # codenames after PLATFORM_VERSION_CODENAME. 95 PLATFORM_VERSION_ALL_CODENAMES := $(PLATFORM_VERSION_CODENAME) 96endif 97 98ifeq "REL" "$(PLATFORM_VERSION_CODENAME)" 99 PLATFORM_PREVIEW_SDK_VERSION := 0 100else 101 ifeq "" "$(PLATFORM_PREVIEW_SDK_VERSION)" 102 # This is the definition of a preview SDK version over and above the current 103 # platform SDK version. Unlike the platform SDK version, a higher value 104 # for preview SDK version does NOT mean that all prior preview APIs are 105 # included. Packages reading this value to determine compatibility with 106 # known APIs should check that this value is precisely equal to the preview 107 # SDK version the package was built for, otherwise it should fall back to 108 # assuming the device can only support APIs as of the previous official 109 # public release. 110 # This value will always be 0 for release builds. 111 PLATFORM_PREVIEW_SDK_VERSION := 0 112 endif 113endif 114 115ifeq "" "$(DEFAULT_APP_TARGET_SDK)" 116 # This is the default minSdkVersion and targetSdkVersion to use for 117 # all .apks created by the build system. It can be overridden by explicitly 118 # setting these in the .apk's AndroidManifest.xml. It is either the code 119 # name of the development build or, if this is a release build, the official 120 # SDK version of this release. 121 ifeq "REL" "$(PLATFORM_VERSION_CODENAME)" 122 DEFAULT_APP_TARGET_SDK := $(PLATFORM_SDK_VERSION) 123 else 124 DEFAULT_APP_TARGET_SDK := $(PLATFORM_VERSION_CODENAME) 125 endif 126endif 127 128ifeq "" "$(PLATFORM_SECURITY_PATCH)" 129 # Used to indicate the security patch that has been applied to the device. 130 # It must signify that the build includes all security patches issued up through the designated Android Public Security Bulletin. 131 # It must be of the form "YYYY-MM-DD" on production devices. 132 # It must match one of the Android Security Patch Level strings of the Public Security Bulletins. 133 # If there is no $PLATFORM_SECURITY_PATCH set, keep it empty. 134 PLATFORM_SECURITY_PATCH := 2017-04-05 135endif 136 137ifeq "" "$(PLATFORM_BASE_OS)" 138 # Used to indicate the base os applied to the device. 139 # Can be an arbitrary string, but must be a single word. 140 # 141 # If there is no $PLATFORM_BASE_OS set, keep it empty. 142 PLATFORM_BASE_OS := 143endif 144 145ifeq "" "$(BUILD_ID)" 146 # Used to signify special builds. E.g., branches and/or releases, 147 # like "M5-RC7". Can be an arbitrary string, but must be a single 148 # word and a valid file name. 149 # 150 # If there is no BUILD_ID set, make it obvious. 151 BUILD_ID := UNKNOWN 152endif 153 154ifeq "" "$(BUILD_DATETIME)" 155 # Used to reproduce builds by setting the same time. Must be the number 156 # of seconds since the Epoch. 157 BUILD_DATETIME := $(shell date +%s) 158endif 159 160ifneq (,$(findstring Darwin,$(shell uname -sm))) 161DATE := date -r $(BUILD_DATETIME) 162else 163DATE := date -d @$(BUILD_DATETIME) 164endif 165 166ifeq "" "$(BUILD_NUMBER)" 167 # BUILD_NUMBER should be set to the source control value that 168 # represents the current state of the source code. E.g., a 169 # perforce changelist number or a git hash. Can be an arbitrary string 170 # (to allow for source control that uses something other than numbers), 171 # but must be a single word and a valid file name. 172 # 173 # If no BUILD_NUMBER is set, create a useful "I am an engineering build 174 # from this date/time" value. Make it start with a non-digit so that 175 # anyone trying to parse it as an integer will probably get "0". 176 BUILD_NUMBER := eng.$(shell echo $${USER:0:6}).$(shell $(DATE) +%Y%m%d.%H%M%S) 177endif 178