如何查看Android SDK源码版本
PLATFORM_VERSION := 4.2.2
位于/build/core/version_defaults.mk
- #
- # Copyright (C) 2008 The Android Open Source Project
- #
- # Licensed under the Apache License, Version 2.0 (the "License");
- # you may not use this file except in compliance with the License.
- # You may obtain a copy of the License at
- #
- # http://www.apache.org/licenses/LICENSE-2.0
- #
- # Unless required by applicable law or agreed to in writing, software
- # distributed under the License is distributed on an "AS IS" BASIS,
- # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- # See the License for the specific language governing permissions and
- # limitations under the License.
- #
- #
- # Handle various build version information.
- #
- # Guarantees that the following are defined:
- # PLATFORM_VERSION
- # PLATFORM_SDK_VERSION
- # PLATFORM_VERSION_CODENAME
- # DEFAULT_APP_TARGET_SDK
- # BUILD_ID
- # BUILD_NUMBER
- #
- # Look for an optional file containing overrides of the defaults,
- # but don't cry if we don't find it. We could just use -include, but
- # the build.prop target also wants INTERNAL_BUILD_ID_MAKEFILE to be set
- # if the file exists.
- #
- INTERNAL_BUILD_ID_MAKEFILE := $(wildcard $(BUILD_SYSTEM)/build_id.mk)
- ifneq "" "$(INTERNAL_BUILD_ID_MAKEFILE)"
- include $(INTERNAL_BUILD_ID_MAKEFILE)
- endif
- ifeq "" "$(PLATFORM_VERSION)"
- # This is the canonical definition of the platform version,
- # which is the version that we reveal to the end user.
- # Update this value when the platform version changes (rather
- # than overriding it somewhere else). Can be an arbitrary string.
- PLATFORM_VERSION := 4.2.2 # SDK Version
- endif
- ifeq "" "$(PLATFORM_SDK_VERSION)"
- # This is the canonical definition of the SDK version, which defines
- # the set of APIs and functionality available in the platform. It
- # is a single integer that increases monotonically as updates to
- # the SDK are released. It should only be incremented when the APIs for
- # the new release are frozen (so that developers don't write apps against
- # intermediate builds). During development, this number remains at the
- # SDK version the branch is based on and PLATFORM_VERSION_CODENAME holds
- # the code-name of the new development work.
- PLATFORM_SDK_VERSION := 17 #API Level
- endif
- ifeq "" "$(PLATFORM_VERSION_CODENAME)"
- # This is the current development code-name, if the build is not a final
- # release build. If this is a final release build, it is simply "REL".
- PLATFORM_VERSION_CODENAME := REL
- endif
- ifeq "" "$(DEFAULT_APP_TARGET_SDK)"
- # This is the default minSdkVersion and targetSdkVersion to use for
- # all .apks created by the build system. It can be overridden by explicitly
- # setting these in the .apk's AndroidManifest.xml. It is either the code
- # name of the development build or, if this is a release build, the official
- # SDK version of this release.
- ifeq "REL" "$(PLATFORM_VERSION_CODENAME)"
- DEFAULT_APP_TARGET_SDK := $(PLATFORM_SDK_VERSION)
- else
- DEFAULT_APP_TARGET_SDK := $(PLATFORM_VERSION_CODENAME)
- endif
- endif
- ifeq "" "$(BUILD_ID)"
- # Used to signify special builds. E.g., branches and/or releases,
- # like "M5-RC7". Can be an arbitrary string, but must be a single
- # word and a valid file name.
- #
- # If there is no BUILD_ID set, make it obvious.
- BUILD_ID := UNKNOWN
- endif
- ifeq "" "$(BUILD_NUMBER)"
- # BUILD_NUMBER should be set to the source control value that
- # represents the current state of the source code. E.g., a
- # perforce changelist number or a git hash. Can be an arbitrary string
- # (to allow for source control that uses something other than numbers),
- # but must be a single word and a valid file name.
- #
- # If no BUILD_NUMBER is set, create a useful "I am an engineering build
- # from this date/time" value. Make it start with a non-digit so that
- # anyone trying to parse it as an integer will probably get "0".
- BUILD_NUMBER := eng.$(USER).$(shell date +%Y%m%d.%H%M%S)
- endif
- root@idong:/home/hejian/rk3066-4.2/build/core#
- root@idong:/home/hejian/rk3066-4.2/build/core# cat version_defaults.mk
- #
- # Copyright (C) 2008 The Android Open Source Project
- #
- # Licensed under the Apache License, Version 2.0 (the "License");
- # you may not use this file except in compliance with the License.
- # You may obtain a copy of the License at
- #
- # http://www.apache.org/licenses/LICENSE-2.0
- #
- # Unless required by applicable law or agreed to in writing, software
- # distributed under the License is distributed on an "AS IS" BASIS,
- # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- # See the License for the specific language governing permissions and
- # limitations under the License.
- #
- #
- # Handle various build version information.
- #
- # Guarantees that the following are defined:
- # PLATFORM_VERSION
- # PLATFORM_SDK_VERSION
- # PLATFORM_VERSION_CODENAME
- # DEFAULT_APP_TARGET_SDK
- # BUILD_ID
- # BUILD_NUMBER
- #
- # Look for an optional file containing overrides of the defaults,
- # but don't cry if we don't find it. We could just use -include, but
- # the build.prop target also wants INTERNAL_BUILD_ID_MAKEFILE to be set
- # if the file exists.
- #
- INTERNAL_BUILD_ID_MAKEFILE := $(wildcard $(BUILD_SYSTEM)/build_id.mk)
- ifneq "" "$(INTERNAL_BUILD_ID_MAKEFILE)"
- include $(INTERNAL_BUILD_ID_MAKEFILE)
- endif
- ifeq "" "$(PLATFORM_VERSION)"
- # This is the canonical definition of the platform version,
- # which is the version that we reveal to the end user.
- # Update this value when the platform version changes (rather
- # than overriding it somewhere else). Can be an arbitrary string.
- PLATFORM_VERSION := 4.2.2
- endif
- ifeq "" "$(PLATFORM_SDK_VERSION)"
- # This is the canonical definition of the SDK version, which defines
- # the set of APIs and functionality available in the platform. It
- # is a single integer that increases monotonically as updates to
- # the SDK are released. It should only be incremented when the APIs for
- # the new release are frozen (so that developers don't write apps against
- # intermediate builds). During development, this number remains at the
- # SDK version the branch is based on and PLATFORM_VERSION_CODENAME holds
- # the code-name of the new development work.
- PLATFORM_SDK_VERSION := 17
- endif
- ifeq "" "$(PLATFORM_VERSION_CODENAME)"
- # This is the current development code-name, if the build is not a final
- # release build. If this is a final release build, it is simply "REL".
- PLATFORM_VERSION_CODENAME := REL
- endif
- ifeq "" "$(DEFAULT_APP_TARGET_SDK)"
- # This is the default minSdkVersion and targetSdkVersion to use for
- # all .apks created by the build system. It can be overridden by explicitly
- # setting these in the .apk's AndroidManifest.xml. It is either the code
- # name of the development build or, if this is a release build, the official
- # SDK version of this release.
- ifeq "REL" "$(PLATFORM_VERSION_CODENAME)"
- DEFAULT_APP_TARGET_SDK := $(PLATFORM_SDK_VERSION)
- else
- DEFAULT_APP_TARGET_SDK := $(PLATFORM_VERSION_CODENAME)
- endif
- endif
- ifeq "" "$(BUILD_ID)"
- # Used to signify special builds. E.g., branches and/or releases,
- # like "M5-RC7". Can be an arbitrary string, but must be a single
- # word and a valid file name.
- #
- # If there is no BUILD_ID set, make it obvious.
- BUILD_ID := UNKNOWN
- endif
- ifeq "" "$(BUILD_NUMBER)"
- # BUILD_NUMBER should be set to the source control value that
- # represents the current state of the source code. E.g., a
- # perforce changelist number or a git hash. Can be an arbitrary string
- # (to allow for source control that uses something other than numbers),
- # but must be a single word and a valid file name.
- #
- # If no BUILD_NUMBER is set, create a useful "I am an engineering build
- # from this date/time" value. Make it start with a non-digit so that
- # anyone trying to parse it as an integer will probably get "0".
- BUILD_NUMBER := eng.$(USER).$(shell date +%Y%m%d.%H%M%S)
- endif
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