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 # 36 INTERNAL_BUILD_ID_MAKEFILE := $(wildcard $(BUILD_SYSTEM)/build_id.mk) 37 ifneq "" "$(INTERNAL_BUILD_ID_MAKEFILE)" 38 include $(INTERNAL_BUILD_ID_MAKEFILE) 39 endif 40 41 ifeq "" "$(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 := 7.1 47 endif 48 49 ifeq "" "$(PLATFORM_SDK_VERSION)" 50 # This is the canonical definition of the SDK version, which defines 51 # the set of APIs and functionality available in the platform. It 52 # is a single integer that increases monotonically as updates to 53 # the SDK are released. It should only be incremented when the APIs for 54 # the new release are frozen (so that developers don't write apps against 55 # intermediate builds). During development, this number remains at the 56 # SDK version the branch is based on and PLATFORM_VERSION_CODENAME holds 57 # the code-name of the new development work. 58 PLATFORM_SDK_VERSION := 25 59 endif 60 61 ifeq "" "$(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 66 # language supports. 67 PLATFORM_JACK_MIN_SDK_VERSION := 25 68 endif 69 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 74 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 := $(PLATFORM_VERSION_CODENAME) 79 endif 80 81 ifeq "REL" "$(PLATFORM_VERSION_CODENAME)" 82 PLATFORM_PREVIEW_SDK_VERSION := 0 83 else 84 ifeq "" "$(PLATFORM_PREVIEW_SDK_VERSION)" 85 # This is the definition of a preview SDK version over and above the current 86 # platform SDK version. Unlike the platform SDK version, a higher value 87 # for preview SDK version does NOT mean that all prior preview APIs are 88 # included. Packages reading this value to determine compatibility with 89 # known APIs should check that this value is precisely equal to the preview 90 # SDK version the package was built for, otherwise it should fall back to 91 # assuming the device can only support APIs as of the previous official 92 # public release. 93 # This value will always be 0 for release builds. 94 PLATFORM_PREVIEW_SDK_VERSION := 0 95 endif 96 endif 97 98 ifeq "" "$(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) 106 else 107 DEFAULT_APP_TARGET_SDK := $(PLATFORM_VERSION_CODENAME) 108 endif 109 endif 110 111 ifeq "" "$(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 $PLATFORM_SECURITY_PATCH set, keep it empty. 117 PLATFORM_SECURITY_PATCH := 2016-10-05 118 endif 119 120 ifeq "" "$(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. 123 # 124 # If there is no $PLATFORM_BASE_OS set, keep it empty. 125 PLATFORM_BASE_OS := 126 endif 127 128 ifeq "" "$(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. 132 # 133 # If there is no BUILD_ID set, make it obvious. 134 BUILD_ID := UNKNOWN 135 endif 136 137 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 := $(shell date +%s) 141 endif 142 143 ifneq (,$(findstring Darwin,$(shell uname -sm))) 144 DATE := date -r $(BUILD_DATETIME) 145 else 146 DATE := date -d @$(BUILD_DATETIME) 147 endif 148 149 ifeq "" "$(BUILD_NUMBER)" 150 # BUILD_NUMBER should be set to the source control value that 151 # represents the current state of the source code. E.g., a 152 # perforce changelist number or a git hash. Can be an arbitrary string 153 # (to allow for source control that uses something other than numbers), 154 # but must be a single word and a valid file name. 155 # 156 # If no BUILD_NUMBER is set, create a useful "I am an engineering build 157 # from this date/time" value. Make it start with a non-digit so that 158 # anyone trying to parse it as an integer will probably get "0". 159 BUILD_NUMBER := eng.$(shell echo $${USER:0:6}).$(shell $(DATE) +%Y%m%d.%H%M%S) 160 endif 161
