version_defaults.mk revision b3bfc7172b2adb59ab4fa6ed6dce2e55f7da460c
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) 37ifdef INTERNAL_BUILD_ID_MAKEFILE 38 include $(INTERNAL_BUILD_ID_MAKEFILE) 39endif 40 41# Returns all words in $1 up to and including $2 42define find_and_earlier 43 $(strip $(if $(1), 44 $(firstword $(1)) 45 $(if $(filter $(firstword $(1)),$(2)),, 46 $(call find_and_earlier,$(wordlist 2,$(words $(1)),$(1)),$(2))))) 47endef 48 49#$(warning $(call find_and_earlier,A B C,A)) 50#$(warning $(call find_and_earlier,A B C,B)) 51#$(warning $(call find_and_earlier,A B C,C)) 52#$(warning $(call find_and_earlier,A B C,D)) 53 54define version-list 55$(1) $(1)DR1 $(1)DR2 $(1)MR1 $(1)MR2 56endef 57 58ALL_VERSIONS := O P 59ALL_VERSIONS := $(foreach v,$(ALL_VERSIONS),$(call version-list,$(v))) 60 61ifeq (,$(TARGET_PLATFORM_VERSION)) 62 # Default targeted platform version 63 # TODO: PLATFORM_VERSION, PLATFORM_SDK_VERSION, etc. should be conditional 64 # on this 65 TARGET_PLATFORM_VERSION := O 66endif 67 68ifeq (,$(filter $(ALL_VERSIONS), $(TARGET_PLATFORM_VERSION))) 69$(warning Invalid TARGET_PLATFORM_VERSION '$(TARGET_PLATFORM_VERSION)', must be one of) 70$(warning $(ALL_VERSIONS)) 71$(error Stopping...) 72endif 73 74ENABLED_VERSIONS := $(call find_and_earlier,$(ALL_VERSIONS),$(TARGET_PLATFORM_VERSION)) 75 76$(foreach v,$(ENABLED_VERSIONS), \ 77 $(eval IS_AT_LEAST_$(v) := true)) 78 79# Default versions for each TARGET_PLATFORM_VERSION 80 81# This is the canonical definition of the platform version, 82# which is the version that we reveal to the end user. 83# Update this value when the platform version changes (rather 84# than overriding it somewhere else). Can be an arbitrary string. 85PLATFORM_VERSION.O := O 86 87# This is the current development code-name, if the build is not a final 88# release build. If this is a final release build, it is simply "REL". 89PLATFORM_VERSION_CODENAME.O := O 90 91ifndef PLATFORM_VERSION 92 PLATFORM_VERSION := $(PLATFORM_VERSION.$(TARGET_PLATFORM_VERSION)) 93 ifndef PLATFORM_VERSION 94 # PLATFORM_VERSION falls back to TARGET_PLATFORM_VERSION 95 PLATFORM_VERSION := $(TARGET_PLATFORM_VERSION) 96 endif 97endif 98 99ifndef PLATFORM_SDK_VERSION 100 # This is the canonical definition of the SDK version, which defines 101 # the set of APIs and functionality available in the platform. It 102 # is a single integer that increases monotonically as updates to 103 # the SDK are released. It should only be incremented when the APIs for 104 # the new release are frozen (so that developers don't write apps against 105 # intermediate builds). During development, this number remains at the 106 # SDK version the branch is based on and PLATFORM_VERSION_CODENAME holds 107 # the code-name of the new development work. 108 PLATFORM_SDK_VERSION := 25 109endif 110 111ifndef PLATFORM_JACK_MIN_SDK_VERSION 112 # This is definition of the min SDK version given to Jack for the current 113 # platform. For released version it should be the same as 114 # PLATFORM_SDK_VERSION. During development, this number may be incremented 115 # before PLATFORM_SDK_VERSION if the plateform starts to add new java 116 # language supports. 117 PLATFORM_JACK_MIN_SDK_VERSION := o-b1 118endif 119 120ifndef PLATFORM_VERSION_CODENAME 121 PLATFORM_VERSION_CODENAME := $(PLATFORM_VERSION_CODENAME.$(TARGET_PLATFORM_VERSION)) 122 ifndef PLATFORM_VERSION_CODENAME 123 # PLATFORM_VERSION_CODENAME falls back to TARGET_PLATFORM_VERSION 124 PLATFORM_VERSION_CODENAME := $(TARGET_PLATFORM_VERSION) 125 endif 126 127 # This is all of the development codenames that are active. Should be either 128 # the same as PLATFORM_VERSION_CODENAME or a comma-separated list of additional 129 # codenames after PLATFORM_VERSION_CODENAME. 130 PLATFORM_VERSION_ALL_CODENAMES := $(PLATFORM_VERSION_CODENAME) 131endif 132 133ifeq (REL,$(PLATFORM_VERSION_CODENAME)) 134 PLATFORM_PREVIEW_SDK_VERSION := 0 135else 136 ifndef PLATFORM_PREVIEW_SDK_VERSION 137 # This is the definition of a preview SDK version over and above the current 138 # platform SDK version. Unlike the platform SDK version, a higher value 139 # for preview SDK version does NOT mean that all prior preview APIs are 140 # included. Packages reading this value to determine compatibility with 141 # known APIs should check that this value is precisely equal to the preview 142 # SDK version the package was built for, otherwise it should fall back to 143 # assuming the device can only support APIs as of the previous official 144 # public release. 145 # This value will always be 0 for release builds. 146 PLATFORM_PREVIEW_SDK_VERSION := 0 147 endif 148endif 149 150ifndef DEFAULT_APP_TARGET_SDK 151 # This is the default minSdkVersion and targetSdkVersion to use for 152 # all .apks created by the build system. It can be overridden by explicitly 153 # setting these in the .apk's AndroidManifest.xml. It is either the code 154 # name of the development build or, if this is a release build, the official 155 # SDK version of this release. 156 ifeq (REL,$(PLATFORM_VERSION_CODENAME)) 157 DEFAULT_APP_TARGET_SDK := $(PLATFORM_SDK_VERSION) 158 else 159 DEFAULT_APP_TARGET_SDK := $(PLATFORM_VERSION_CODENAME) 160 endif 161endif 162 163ifndef PLATFORM_SECURITY_PATCH 164 # Used to indicate the security patch that has been applied to the device. 165 # It must signify that the build includes all security patches issued up through the designated Android Public Security Bulletin. 166 # It must be of the form "YYYY-MM-DD" on production devices. 167 # It must match one of the Android Security Patch Level strings of the Public Security Bulletins. 168 # If there is no $PLATFORM_SECURITY_PATCH set, keep it empty. 169 PLATFORM_SECURITY_PATCH := 2016-11-05 170endif 171 172ifndef PLATFORM_BASE_OS 173 # Used to indicate the base os applied to the device. 174 # Can be an arbitrary string, but must be a single word. 175 # 176 # If there is no $PLATFORM_BASE_OS set, keep it empty. 177 PLATFORM_BASE_OS := 178endif 179 180ifndef BUILD_ID 181 # Used to signify special builds. E.g., branches and/or releases, 182 # like "M5-RC7". Can be an arbitrary string, but must be a single 183 # word and a valid file name. 184 # 185 # If there is no BUILD_ID set, make it obvious. 186 BUILD_ID := UNKNOWN 187endif 188 189ifndef BUILD_DATETIME 190 # Used to reproduce builds by setting the same time. Must be the number 191 # of seconds since the Epoch. 192 BUILD_DATETIME := $(shell date +%s) 193endif 194 195ifneq (,$(findstring Darwin,$(shell uname -sm))) 196DATE := date -r $(BUILD_DATETIME) 197else 198DATE := date -d @$(BUILD_DATETIME) 199endif 200 201ifndef BUILD_NUMBER 202 # BUILD_NUMBER should be set to the source control value that 203 # represents the current state of the source code. E.g., a 204 # perforce changelist number or a git hash. Can be an arbitrary string 205 # (to allow for source control that uses something other than numbers), 206 # but must be a single word and a valid file name. 207 # 208 # If no BUILD_NUMBER is set, create a useful "I am an engineering build 209 # from this date/time" value. Make it start with a non-digit so that 210 # anyone trying to parse it as an integer will probably get "0". 211 BUILD_NUMBER := eng.$(shell echo $${USER:0:6}).$(shell $(DATE) +%Y%m%d.%H%M%S) 212endif 213