Android编译系统参考手册

时间 2019-11-11

原文原文链接

build/core/clear_vars.mk Clear out values of all variables used by rule templates 清除LOCAL变量，每一个模块的Android.mk，通常会先包含该文件变量定义主要出如今base_rules.mk，config.mk，definitions.mk LOCAL_MODULE LOCAL_MODULE表示模块的名称 LOCAL_MODULE将在每一个模块的makefile里定义，若是未定义，编译系统会报错 LOCAL_MODULE_PATH 表示模块编译结果将要存放的目录 recovery模块的Android.mk里有 LOCAL_MODULE := nandroid-md5.sh LOCAL_MODULE_PATH := $(TARGET_RECOVERY_ROOT_OUT)/sbin 说明：nandroid-md5.sh 将存放于out/Cyanogenmod/target/product/m7ul/recovery/root/sbin 若是模块的Android.mk里未定义LOCAL_MODULE_PATH 那么LOCAL_MODULE_PATH := $($(my_prefix)OUT$(partition_tag)_$(LOCAL_MODULE_CLASS)) 在recovery模块里recovery可执行文件相关变量以下：好比my_prefix为TARGET_，partition_tag为空,LOCAL_MODULE_CLASS为EXECUTABLES 那么LOCAL_MODULE_PATH为$(TARGET_OUT_EXECUTABLES)，值应该为 out/Cyanogenmod/target/product/m7ul/system/bin LOCAL_MODULE_STEM 表示编译连接后的目标文件的文件名，不带后缀 LOCAL_MODULE_STEM := $(strip $(LOCAL_MODULE_STEM)) ifeq ($(LOCAL_MODULE_STEM),) LOCAL_MODULE_STEM := $(LOCAL_MODULE) endif 例： recovery模块编译recovery可执行文件： LOCAL_MODULE_STEM:=recovery LOCAL_DONT_CHECK_MODULE 若是定义了该变量，那么模块将不被检查 ifdef LOCAL_DONT_CHECK_MODULE LOCAL_CHECKED_MODULE := endif LOCAL_CHECKED_MODULE 须要检查的模块 ifndef LOCAL_CHECKED_MODULE ifndef LOCAL_SDK_VERSION LOCAL_CHECKED_MODULE := $(LOCAL_BUILT_MODULE) endif endif LOCAL_BUILT_MODULE 表示编译连接后的目标文件(文件路径+文件名) LOCAL_BUILT_MODULE := $(built_module_path)/$(LOCAL_BUILT_MODULE_STEM) 好比recovery: LOCAL_BUILT_MODULE 路径； out/Cyanogenmod/target/product/m7ul/obj/EXECUTABLES/recovery_intermediates/recovery LOCAL_BUILT_MODULE_STEM 表示编译连接后的目标文件的文件名，带后缀 LOCAL_BUILT_MODULE_STEM := $(strip $(LOCAL_BUILT_MODULE_STEM)) ifeq ($(LOCAL_BUILT_MODULE_STEM),) LOCAL_BUILT_MODULE_STEM := $(LOCAL_INSTALLED_MODULE_STEM) endif 例： recovery模块编译recovery可执行文件： LOCAL_INSTALLED_MODULE_STEM:=recovery OVERRIDE_BUILT_MODULE_PATH 只有内部动态连接库模块可使用OVERRIDE_BUILT_MODULE_PATH OVERRIDE_BUILT_MODULE_PATH := $(strip $(OVERRIDE_BUILT_MODULE_PATH)) ifdef OVERRIDE_BUILT_MODULE_PATH ifneq ($(LOCAL_MODULE_CLASS),SHARED_LIBRARIES) $(error $(LOCAL_PATH): Illegal use of OVERRIDE_BUILT_MODULE_PATH) endif built_module_path := $(OVERRIDE_BUILT_MODULE_PATH) else built_module_path := $(intermediates) endif LOCAL_INSTALLED_MODULE 表示模块的安装路径+文件名，存放在安装目录 ifneq (true,$(LOCAL_UNINSTALLABLE_MODULE)) LOCAL_INSTALLED_MODULE := $(LOCAL_MODULE_PATH)/$(LOCAL_INSTALLED_MODULE_STEM) endif 示例： out/Cyanogenmod/target/product/m7ul/system/bin/recovery LOCAL_UNINSTALLABLE_MODULE 表示该模块是否安装至手机，像sdk文档模块不会被安装至手机，所以LOCAL_UNINSTALLABLE_MODULE为true LOCAL_INTERMEDIATE_TARGETS Assemble the list of targets to create PRIVATE_ variables for. LOCAL_INTERMEDIATE_TARGETS += $(LOCAL_BUILT_MODULE) LOCAL_UNSTRIPPED_PATH 没有strip的程序存放路径，一般放在symbols目录 Instructs the build system to put the unstripped version of the module somewhere other than what's normal for its type. Usually, you override this because you overrode LOCAL_MODULE_PATH for an executable or a shared library. If you overrode LOCAL_MODULE_PATH, but not LOCAL_UNSTRIPPED_PATH, an error will occur. LOCAL_MODULE_CLASS 将用于决定编译时的中间文件存放的位置 LOCAL_MODULE_CLASS在定义目标生成方式的makefile文件里定义，好比executable.mk里定义LOCAL_MODULE_CLASS := EXECUTABLES 在recovery模块的Android.mk里定义的LOCAL_MODULE_CLASS有： LOCAL_MODULE_CLASS := RECOVERY_EXECUTABLES LOCAL_MODULE_CLASS := UTILITY_EXECUTABLES 其它的LOCAL_MODULE_CLASS有 LOCAL_MODULE_CLASS := ETC LOCAL_MODULE_CLASS := STATIC_LIBRARIES LOCAL_MODULE_CLASS := EXECUTABLES LOCAL_MODULE_CLASS := FAKE LOCAL_MODULE_CLASS := JAVA_LIBRARIES LOCAL_MODULE_CLASS := SHARED_LIBRARIES LOCAL_MODULE_CLASS := APPS 对应 Cyanogenmod/target/product/m7ul/obj 的目录好比说若 LOCAL_MODULE_CLASS := ETC 那么该模块编译的中间文件将存放于 Cyanogenmod/target/product/m7ul/obj/ETC LOCAL_MODULE_SUFFIX 表示编译连接后的目标文件的后缀 LOCAL_PACKAGE_NAME App名字示例： Dialer, Contacts, etc. This will probably change or go away when we switch to an ant-based build system for the apps. LOCAL_OVERRIDES_PACKAGES Some packages may override others using LOCAL_OVERRIDES_PACKAGE 示例： packages/apps/DeskClock/Android.mk:13:LOCAL_OVERRIDES_PACKAGES := AlarmClock LOCAL_EXPORT_PACKAGE_RESOURCES 若定义该变量，资源文件打包成一个apk 示例： frameworks/base/core/res/Android.mk:34:LOCAL_EXPORT_PACKAGE_RESOURCES := true LOCAL_MANIFEST_PACKAGE_NAME 在build/core/definitions.mk里inherit-package函数有用到LOCAL_MANIFEST_PACKAGE_NAME LOCAL_REQUIRED_MODULES 本模块依赖的模块 Set LOCAL_REQUIRED_MODULES to any number of whitespace-separated module names, like "libblah" or "Email". If this module is installed, all of the modules that it requires will be installed as well. This can be used to, e.g., ensure that necessary shared libraries or providers are installed when a given app is installed 示例： LOCAL_REQUIRED_MODULES += $(installed_shared_library_module_names) LOCAL_ACP_UNAVAILABLE 示例： build/tools/acp/Android.mk:23:LOCAL_ACP_UNAVAILABLE := true LOCAL_MODULE_TAGS 模块的tag，为debug eng tests optional samples shell_ash shell_mksh等tag的组合，一个模块可有多个 Tag, 注意如今模块如今不能使用user做为模块的Tag, 之前若是使用user作为tag,那么这个模块将被自动安装，若是想定义自动安装的模块，须要在PRODUCT_PACKAGES变量里添加该模块，该变量在build/target/product/base.mk和build/target/product/core.mk里有赋值，这是全部产品都将继承的基础配置另外每一个设备可在本身的产品配置文件device_*.mk里设置该变量，添加更多的模块若是当前目录或者父目录有*_GPL*的文件，那么将自动添加gnu的tag LOCAL_SRC_FILES 源代码文件集合 LOCAL_PREBUILT_OBJ_FILES 示例： sdk/find_lock/Android.mk:50:LOCAL_PREBUILT_OBJ_FILES += images/$(FIND_LOCK_ICON_OBJ) LOCAL_STATIC_JAVA_LIBRARIES 要连接的Java库，被连接的库将不会安装在手机上，所以会放到连接生成的java包里示例： packages/apps/Exchange/Android.mk:24:LOCAL_STATIC_JAVA_LIBRARIES := android-common com.android.emailcommon LOCAL_STATIC_LIBRARIES 表示模块要连接的静态库 ifneq (,$(filter libcutils libutils,$(LOCAL_STATIC_LIBRARIES))) LOCAL_STATIC_LIBRARIES := $(call insert-liblog,$(LOCAL_STATIC_LIBRARIES)) endif 示例：external/busybox/Android.mk LOCAL_STATIC_LIBRARIES := libcutils libc libm 最终： LOCAL_STATIC_LIBRARIES := libcutils libc libm liblog LOCAL_GROUP_STATIC_LIBRARIES 示例： build/core/binary.mk:223:ifeq (true,$(LOCAL_GROUP_STATIC_LIBRARIES)) LOCAL_WHOLE_STATIC_LIBRARIES 连接时会将LOCAL_WHOLE_STATIC_LIBRARIES类型的静态连接库的全部目标代码放入最终目标文件里，而不去掉 These are the static libraries that you want to include in your module without allowing the linker to remove dead code from them. This is mostly useful if you want to add a static library to a shared library and have the static library's content exposed from the shared library. ifneq (,$(filter libcutils libutils,$(LOCAL_WHOLE_STATIC_LIBRARIES))) LOCAL_WHOLE_STATIC_LIBRARIES := $(call insert-liblog,$(LOCAL_WHOLE_STATIC_LIBRARIES)) endif 示例： dalvik/vm/Android.mk LOCAL_WHOLE_STATIC_LIBRARIES += libexpat libcutils libdex liblog libz 最终 LOCAL_WHOLE_STATIC_LIBRARIES += libexpat libcutils libdex liblog libz liblog LOCAL_SHARED_LIBRARIES 表示模块要连接的动态连接库 ifneq (,$(filter libcutils libutils,$(LOCAL_SHARED_LIBRARIES))) LOCAL_SHARED_LIBRARIES := $(call insert-liblog,$(LOCAL_SHARED_LIBRARIES)) endif 示例：frameworks/av/media/mtp模块 Android.mk LOCAL_SHARED_LIBRARIES := libutils libcutils libusbhost libbinder 最终：LOCAL_SHARED_LIBRARIES： libutils liblog libcutils libusbhost libbinder LOCAL_IS_HOST_MODULE 表示该模块是不是将在主机上运行的模块 LOCAL_CC 你能够经过LOCAL_CC定义一个不一样的C编译器 LOCAL_CXX 你能够经过LOCAL_CXX定义一个不一样的C++编译器 LOCAL_CPP_EXTENSION 当前c++代码文件后缀 external/protobuf/Android.mk:177:LOCAL_CPP_EXTENSION := .cc LOCAL_NO_DEFAULT_COMPILER_FLAGS 一般为C或者C++源代码文件的编译提供了默认的头文件目录和flag，能够经过 LOCAL_NO_DEFAULT_COMPILER_FLAGS设置不使用这些东东 LOCAL_NO_FDO_SUPPORT 示例： build/core/binary.mk:136:ifeq ($(strip $(LOCAL_NO_FDO_SUPPORT)),) LOCAL_ARM_MODE 示例： ndk/tests/build/build-mode/jni/Android.mk:19:LOCAL_ARM_MODE := thumb ndk/tests/build/build-mode/jni/Android.mk:32:LOCAL_ARM_MODE := arm LOCAL_YACCFLAGS Any flags to pass to invocations of yacc for your module. A known limitation here is that the flags will be the same for all invocations of YACC for your module. This can be fixed. If you ever need it to be, just ask. LOCAL_YACCFLAGS := -p kjsyy LOCAL_ASFLAGS Explicitly declare assembly-only __ASSEMBLY__ macro for assembly source LOCAL_ASFLAGS += -D__ASSEMBLY__ LOCAL_CFLAGS 表示编译C代码时用的参数 LOCAL_CPPFLAGS 编译C++代码使用的flag ./frameworks/av/media/libstagefright/Android.mk:78:LOCAL_CPPFLAGS += -DUSE_TI_CUSTOM_DOMX LOCAL_RTTI_FLAG 编译C++代码使用rtti标记 ./external/icu4c/common/Android.mk:135:LOCAL_RTTI_FLAG := -frtti LOCAL_C_INCLUDES 编译C代码使用的头文件目录 LOCAL_EXPORT_C_INCLUDE_DIRS 示例： system/core/libsuspend/Android.mk:18:LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include LOCAL_LDFLAGS 表示连接时用的参数 LOCAL_LDLIBS 额外的动态连接库 LOCAL_LDLIBS allows you to specify additional libraries that are not part of the build for your executable or library. Specify the libraries you want in -lxxx format; they're passed directly to the link line. However, keep in mind that there will be no dependency generated for these libraries. It's most useful in simulator builds where you want to use a library preinstalled on the host. The linker (ld) is a particularly fussy beast, so it's sometimes necessary to pass other flags here if you're doing something sneaky. Some examples: LOCAL_LDLIBS += -lcurses -lpthread LOCAL_AAPT_FLAGS 使用aapt编译资源包时所用的flag packages/apps/Calendar/Android.mk:35:LOCAL_AAPT_FLAGS := --auto-add-overlay LOCAL_AAPT_INCLUDE_ALL_RESOURCES 使用AAPT编译时需用的一个标记，打包资源时会用到该比较 build/core/package.mk:391:ifeq ($(LOCAL_AAPT_INCLUDE_ALL_RESOURCES),true) packages/inputmethods/LatinIME/java/Android.mk:37:LOCAL_AAPT_INCLUDE_ALL_RESOURCES := true LOCAL_SYSTEM_SHARED_LIBRARIES ifdef LOCAL_IS_HOST_MODULE ifeq ($(LOCAL_SYSTEM_SHARED_LIBRARIES),none) LOCAL_SYSTEM_SHARED_LIBRARIES := endif else ifeq ($(LOCAL_SYSTEM_SHARED_LIBRARIES),none) LOCAL_SYSTEM_SHARED_LIBRARIES := $(TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES) endif endif 示例： TARGET_DEFAULT_SYSTEM_SHARED_LIBRARIES：libc libstdc++ libm LOCAL_SYSTEM_SHARED_LIBRARIES：libc libstdc++ libm LOCAL_PREBUILT_LIBS 预编译好的库，当使用including $(BUILD_PREBUILT) or $(BUILD_HOST_PREBUILT) 会将LOCAL_PREBUILT_LIBS所指的库拷贝到安装目录 LOCAL_PREBUILT_EXECUTABLES 预编译好的可执行程序，通常经过include $(BUILD_PREBUILT)设置会将预编译好的程序拷贝直接拷贝至安装目录 LOCAL_PREBUILT_JAVA_LIBRARIES 示例： prebuilts/misc/common/kxml2/Android.mk:19:LOCAL_PREBUILT_JAVA_LIBRARIES := kxml2-2.3.0 $(COMMON_JAVA_PACKAGE_SUFFIX) LOCAL_PREBUILT_STATIC_JAVA_LIBRARIES 示例： packages/apps/CMUpdater/Android.mk:39:LOCAL_PREBUILT_STATIC_JAVA_LIBRARIES := dashclockapi:libs/dashclock-api-r1.1.jar LOCAL_PREBUILT_STRIP_COMMENTS 示例： build/core/prebuilt.mk:52: ifneq ($(LOCAL_PREBUILT_STRIP_COMMENTS),) LOCAL_INTERMEDIATE_SOURCES 示例： frameworks/base/Android.mk:249:LOCAL_INTERMEDIATE_SOURCES := \ LOCAL_INTERMEDIATE_SOURCE_DIR 表示编译生成的源文件存放目录 LOCAL_INTERMEDIATE_SOURCE_DIR := $(intermediates.COMMON)/src 例：out/target/common/obj/EXECUTABLES/recovery_intermediates/src LOCAL_JAVACFLAGS If you have additional flags to pass into the javac compiler, add them here. For example: LOCAL_JAVACFLAGS += -Xlint:deprecation LOCAL_JAVA_LIBRARIES 当连接java app程序和库时， LOCAL_JAVA_LIBRARIES指定了哪些java类将被包含，目前只有 LOCAL_JAVA_LIBRARIES := core framework 注意目前编译app设置LOCAL_JAVA_LIBRARIES是没必要要的，也不被容许的，在include $(BUILD_PACKAGE)时合适的库都会被包含进来 LOCAL_NO_STANDARD_LIBRARIES 示例： frameworks/base/Android.mk:254:LOCAL_NO_STANDARD_LIBRARIES := true LOCAL_CLASSPATH 示例： external/javassist/Android.mk:21:LOCAL_CLASSPATH := $(HOST_JDK_TOOLS_JAR) LOCAL_DROIDDOC_USE_STANDARD_DOCLET 示例： device/sample/frameworks/PlatformLibrary/Android.mk:48:LOCAL_DROIDDOC_USE_STANDARD_DOCLET := true LOCAL_DROIDDOC_SOURCE_PATH 示例： build/core/droiddoc.mk:40:LOCAL_DROIDDOC_SOURCE_PATH := $(LOCAL_PATH) LOCAL_DROIDDOC_TEMPLATE_DIR 暂时未见用到 LOCAL_DROIDDOC_CUSTOM_TEMPLATE_DIR 示例： frameworks/base/Android.mk:591:LOCAL_DROIDDOC_CUSTOM_TEMPLATE_DIR:=build/tools/droiddoc/templates -sdk LOCAL_DROIDDOC_ASSET_DIR 示例： build/core/droiddoc.mk:143:$(full_target): PRIVATE_OUT_ASSET_DIR := $(out_dir)/ $(LOCAL_DROIDDOC_ASSET_DIR) LOCAL_DROIDDOC_CUSTOM_ASSET_DIR 示例： build/tools/droiddoc/test/stubs/Android.mk:25:LOCAL_DROIDDOC_CUSTOM_ASSET_DIR:=assets-google LOCAL_DROIDDOC_OPTIONS 示例： device/sample/frameworks/PlatformLibrary/Android.mk:46:LOCAL_DROIDDOC_OPTIONS := com.example.android.platform_library LOCAL_DROIDDOC_HTML_DIR 示例： frameworks/base/Android.mk:429:framework_docs_LOCAL_DROIDDOC_HTML_DIR := docs/html LOCAL_ASSET_FILES 编译Android Package(app)程序时，一般用LOCAL_ASSET_FILES，表示assets目录的全部文件一般使用方式： LOCAL_ASSET_FILES += $(call find-subdir-assets) LOCAL_ASSET_DIR 编译Android Package(app)程序时，一般用LOCAL_ASSET_FILES，表示assets目录的全部文件一般使用方式： LOCAL_ASSET_FILES += $(call find-subdir-assets) LOCAL_RESOURCE_DIR 示例： packages/apps/Gallery2/Android.mk:59:LOCAL_RESOURCE_DIR += $(LOCAL_PATH)/res LOCAL_JAVA_RESOURCE_DIRS 示例： frameworks/base/tools/layoutlib/bridge/Android.mk:20:LOCAL_JAVA_RESOURCE_DIRS := resources LOCAL_JAVA_RESOURCE_FILES 示例： frameworks/base/Android.mk:261:LOCAL_JAVA_RESOURCE_FILES += $(LOCAL_PATH)/preloaded-classes LOCAL_GENERATED_SOURCES 编译时生成的源代码文件，像aidl将转为java代码 LOCAL_COPY_HEADERS_TO 须要拷贝头头文件至哪一个安装目录 LOCAL_COPY_HEADERS 须要拷贝至安装目录的头文件集合，你须要同时定义LOCAL_COPY_HEADERS_TO LOCAL_FORCE_STATIC_EXECUTABLE 强制编译为静态可执行文件，这样在执行时不会去查找动态连接库通常只有安装在sbin目录下的可执行文件使用该变量若是想程序在recovery下运行，通常都须要添加该变量示例： LOCAL_FORCE_STATIC_EXECUTABLE := true LOCAL_ADDITIONAL_DEPENDENCIES 额外的依赖 If your module needs to depend on anything else that isn't actually built in to it, you can add those make targets to LOCAL_ADDITIONAL_DEPENDENCIES. Usually this is a workaround for some other dependency that isn't created automatically. LOCAL_ENABLE_APROF 编译动态连接库时用到 LOCAL_ENABLE_APROF_JNI 示例： build/core/shared_library.mk:26:ifeq ($(strip $(LOCAL_ENABLE_APROF_JNI)),true) LOCAL_COMPRESS_MODULE_SYMBOLS 暂未见赋值之处示例： build/core/dynamic_binary.mk:74:ifeq ($(LOCAL_COMPRESS_MODULE_SYMBOLS),true) LOCAL_STRIP_MODULE 表示该模块生成的目标是否须要被strip Calculated in base_rules.make to determine if this module should actually be stripped or not, based on whether LOCAL_STRIPPABLE_MODULE is set, and whether the combo is configured to ever strip modules. With Iliyan's stripping tool, this might change. LOCAL_JNI_SHARED_LIBRARIES 示例： packages/inputmethods/LatinIME/java/Android.mk:27:LOCAL_JNI_SHARED_LIBRARIES := libjni_latinime LOCAL_JNI_SHARED_LIBRARIES_ABI 暂未见赋值之处示例： build/core/package.mk:346: jni_shared_libraries_abi := $(LOCAL_JNI_SHARED_LIBRARIES_ABI) LOCAL_JAR_MANIFEST 示例： cts/tools/dasm/src/Android.mk:24:LOCAL_JAR_MANIFEST := ../etc/manifest.txt LOCAL_INSTRUMENTATION_FOR 示例： packages/apps/Gallery/tests/Android.mk:15:LOCAL_INSTRUMENTATION_FOR := Gallery LOCAL_MANIFEST_INSTRUMENTATION_FOR 示例： build/core/definitions.mk:2046: $(call keep-or- override,LOCAL_MANIFEST_INSTRUMENTATION_FOR,$(patsubst &&%,%,$(word 7,$(_o)))) \ LOCAL_AIDL_INCLUDES 示例： build/core/base_rules.mk:185:LOCAL_AIDL_INCLUDES += $(FRAMEWORKS_BASE_JAVA_SRC_DIRS) LOCAL_JARJAR_RULES 示例： frameworks/base/Android.mk:263:#LOCAL_JARJAR_RULES := $(LOCAL_PATH)/jarjar-rules.txt build/core/java.mk:281:$(full_classes_jarjar_jar): PRIVATE_JARJAR_RULES := $(LOCAL_JARJAR_RULES) LOCAL_ADDITIONAL_JAVA_DIR 示例： frameworks/base/Android.mk:738:LOCAL_ADDITIONAL_JAVA_DIR:=$(framework_docs_LOCAL_ADDITIONAL_JAVA_D IR) LOCAL_ALLOW_UNDEFINED_SYMBOLS 示例： bionic/libthread_db/Android.mk:27:LOCAL_ALLOW_UNDEFINED_SYMBOLS := false LOCAL_DX_FLAGS 用dx处理jar代码的flag LOCAL_CERTIFICATE 签名用的证书 ./device/samsung/galaxys2-common/DeviceSettings/Android.mk:11:LOCAL_CERTIFICATE := platform LOCAL_SDK_VERSION build/core/java.mk里定义该变量 LOCAL_SDK_VERSION := $(PDK_BUILD_SDK_VERSION) 若是定义了LOCAL_SDK_VERSION，那么须要定义ndk编译相关变量由于编译app时，常须要编译jni代码示例：LOCAL_SDK_VERSION: 9 LOCAL_SDK_RES_VERSION ./build/core/static_java_library.mk:62:LOCAL_SDK_RES_VERSION:=$(strip $(LOCAL_SDK_RES_VERSION)) LOCAL_NDK_STL_VARIANT ./packages/inputmethods/LatinIME/native/jni/Android.mk:97:LOCAL_NDK_STL_VARIANT := stlport_static LOCAL_EMMA_INSTRUMENT 使用emma进行覆盖代码测试 ./build/core/java_library.mk:54:LOCAL_EMMA_INSTRUMENT := false LOCAL_PROGUARD_ENABLED 是否启用混淆 LOCAL_PROGUARD_FLAGS 混淆使用的flag LOCAL_PROGUARD_FLAG_FILES 混淆使用的flag文件 LOCAL_EMMA_COVERAGE_FILTER 示例： packages/apps/Browser/Android.mk:20:LOCAL_EMMA_COVERAGE_FILTER := *,-com.android.common.* LOCAL_WARNINGS_ENABLE 示例： build/core/definitions.mk:1468: $(if $(findstring true,$(LOCAL_WARNINGS_ENABLE)),$(xlint_unchecked),) \ LOCAL_FULL_MANIFEST_FILE 示例： build/core/package.mk:63:LOCAL_FULL_MANIFEST_FILE := $(LOCAL_PATH)/$(LOCAL_MANIFEST_FILE) LOCAL_MANIFEST_FILE 示例： build/core/package.mk:57:LOCAL_MANIFEST_FILE := AndroidManifest.xml LOCAL_RENDERSCRIPT_INCLUDES 示例： frameworks/base/tests/RenderScriptTests/ImageProcessing2/Android.mk:30:LOCAL_RENDERSCRIPT_INCLUDES _OVERRIDE := $(TOPDIR)external/clang/lib/Headers \ LOCAL_RENDERSCRIPT_INCLUDES_OVERRIDE 示例： frameworks/base/tests/RenderScriptTests/ImageProcessing2/Android.mk:30:LOCAL_RENDERSCRIPT_INCLUDES _OVERRIDE := $(TOPDIR)external/clang/lib/Headers \ LOCAL_RENDERSCRIPT_CC 示例： build/core/java.mk:161:LOCAL_RENDERSCRIPT_CC := $(LLVM_RS_CC) LOCAL_RENDERSCRIPT_FLAGS 示例： frameworks/base/tests/RenderScriptTests/ImageProcessing2/Android.mk:33:LOCAL_RENDERSCRIPT_FLAGS := -rs-package-name=android.support.v8.renderscript LOCAL_RENDERSCRIPT_TARGET_API 示例： frameworks/base/tests/RenderScriptTests/ImageProcessing2/Android.mk:29:LOCAL_RENDERSCRIPT_TARGET_A PI := 17 LOCAL_BUILD_HOST_DEX 示例： libcore/JavaLibrary.mk:137:LOCAL_BUILD_HOST_DEX := true LOCAL_DEX_PREOPT 若是编译模式选择的是user或者userdebug，那么LOCAL_DEX_PREOPT默认为true，这样资源apk和代码文件分离成为odex build/core/package.mk:156:LOCAL_DEX_PREOPT := true LOCAL_PROTOC_OPTIMIZE_TYPE 示例： hardware/ril/mock-ril/Android.mk:57:LOCAL_PROTOC_OPTIMIZE_TYPE := full LOCAL_PROTOC_FLAGS 编译.proto文件使用的flag，暂未见赋值 build/core/binary.mk:291:$(proto_generated_cc_sources): PRIVATE_PROTOC_FLAGS := $(LOCAL_PROTOC_FLAGS) LOCAL_NO_CRT 示例： bionic/linker/Android.mk:70:LOCAL_NO_CRT := true LOCAL_PROPRIETARY_MODULE 是不是设备专有模块 LOCAL_MODULE_OWNER 示例： vendor/samsung/galaxys2-common/proprietary/Android.mk:21:LOCAL_MODULE_OWNER := samsung LOCAL_CTS_TEST_PACKAGE 示例： cts/tests/uiautomator/Android.mk:29:LOCAL_CTS_TEST_PACKAGE := android.uiautomator LOCAL_CTS_TEST_RUNNER 示例： cts/tests/tests/accessibilityservice/Android.mk:32:LOCAL_CTS_TEST_RUNNER := com.android.cts.tradefed.testtype.AccessibilityServiceTestRunner LOCAL_CLANG 表示编译C代码 LOCAL_ADDRESS_SANITIZER 地址对齐 LOCAL_JAR_EXCLUDE_FILES 示例： build/core/static_java_library.mk:44:LOCAL_JAR_EXCLUDE_FILES := $(ANDROID_RESOURCE_GENERATED_CLASSES) LOCAL_LINT_FLAGS 暂未见赋值之处 LOCAL_SOURCE_FILES_ALL_GENERATED LOCAL_SOURCE_FILES_ALL_GENERATED is set only if the module does not have static source files, but generated source files in its LOCAL_INTERMEDIATE_SOURCE_DIR You have to set up the dependency in some other way. LOCAL_DONT_DELETE_JAR_META_INF 示例： cts/tests/core/ctscore.mk:24:LOCAL_DONT_DELETE_JAR_META_INF := true build/core/java.mk:263:$(full_classes_compiled_jar): PRIVATE_DONT_DELETE_JAR_META_INF := $(LOCAL_DONT_DELETE_JAR_META_INF)