• android编译系统的makefile文件Android.mk写法如下


    (1)Android.mk文件首先需要指定LOCAL_PATH变量,用于查找源文件。由于一般情况下

    Android.mk和需要编译的源文件在同一目录下,所以定义成如下形式:
    LOCAL_PATH:=$(call my-dir)
    上面的语句的意思是将LOCAL_PATH变量定义成本文件所在目录路径。

    (2)Android.mk中可以定义多个编译模块,每个编译模块都是以include $(CLEAR_VARS)开始
    以include $(BUILD_XXX)结束
    include $(CLEAR_VARS)
    CLEAR_VARS由编译系统提供,指定让GNU MAKEFILE为你清除除LOCAL_PATH以外的所有LOCAL_XXX变量,
    如LOCAL_MODULE,LOCAL_SRC_FILES,LOCAL_SHARED_LIBRARIES,LOCAL_STATIC_LIBRARIES等。
    include $(BUILD_STATIC_LIBRARY)表示编译成静态库
    include $(BUILD_SHARED_LIBRARY)表示编译成动态库。
    include $(BUILD_EXECUTABLE)表示编译成可执行程序

    (3)举例如下(frameworks/base/libs/audioflinger/Android.mk):
    LOCAL_PATH:= $(call my-dir)
    include $(CLEAR_VARS)  模块一
    ifeq ($(AUDIO_POLICY_TEST),true)
      ENABLE_AUDIO_DUMP := true
    endif
    LOCAL_SRC_FILES:=
        AudioHardwareGeneric.cpp
        AudioHardwareStub.cpp
        AudioHardwareInterface.cpp
    ifeq ($(ENABLE_AUDIO_DUMP),true)
      LOCAL_SRC_FILES += AudioDumpInterface.cpp
      LOCAL_CFLAGS += -DENABLE_AUDIO_DUMP
    endif
    LOCAL_SHARED_LIBRARIES :=
        libcutils
        libutils
        libbinder
        libmedia
        libhardware_legacy
    ifeq ($(strip $(BOARD_USES_GENERIC_AUDIO)),true)
      LOCAL_CFLAGS += -DGENERIC_AUDIO
    endif
    LOCAL_MODULE:= libaudiointerface
    ifeq ($(BOARD_HAVE_BLUETOOTH),true)
      LOCAL_SRC_FILES += A2dpAudioInterface.cpp
      LOCAL_SHARED_LIBRARIES += liba2dp
      LOCAL_CFLAGS += -DWITH_BLUETOOTH -DWITH_A2DP
      LOCAL_C_INCLUDES += $(call include-path-for, bluez)
    endif
    include $(BUILD_STATIC_LIBRARY)  模块一编译成静态库
    include $(CLEAR_VARS)  模块二
    LOCAL_SRC_FILES:=              
        AudioPolicyManagerBase.cpp
    LOCAL_SHARED_LIBRARIES :=
        libcutils
        libutils
        libmedia
    ifeq ($(TARGET_SIMULATOR),true)
     LOCAL_LDLIBS += -ldl
    else
     LOCAL_SHARED_LIBRARIES += libdl
    endif
    LOCAL_MODULE:= libaudiopolicybase
    ifeq ($(BOARD_HAVE_BLUETOOTH),true)
      LOCAL_CFLAGS += -DWITH_A2DP
    endif
    ifeq ($(AUDIO_POLICY_TEST),true)
      LOCAL_CFLAGS += -DAUDIO_POLICY_TEST
    endif
    include $(BUILD_STATIC_LIBRARY) 模块二编译成静态库
    include $(CLEAR_VARS) 模块三
    LOCAL_SRC_FILES:=              
        AudioFlinger.cpp           
        AudioMixer.cpp.arm         
        AudioResampler.cpp.arm     
        AudioResamplerSinc.cpp.arm 
        AudioResamplerCubic.cpp.arm
        AudioPolicyService.cpp
    LOCAL_SHARED_LIBRARIES :=
        libcutils
        libutils
        libbinder
        libmedia
        libhardware_legacy
    ifeq ($(strip $(BOARD_USES_GENERIC_AUDIO)),true)
      LOCAL_STATIC_LIBRARIES += libaudiointerface libaudiopolicybase
      LOCAL_CFLAGS += -DGENERIC_AUDIO
    else
      LOCAL_SHARED_LIBRARIES += libaudio libaudiopolicy
    endif
    ifeq ($(TARGET_SIMULATOR),true)
     LOCAL_LDLIBS += -ldl
    else
     LOCAL_SHARED_LIBRARIES += libdl
    endif
    LOCAL_MODULE:= libaudioflinger
    ifeq ($(BOARD_HAVE_BLUETOOTH),true)
      LOCAL_CFLAGS += -DWITH_BLUETOOTH -DWITH_A2DP
      LOCAL_SHARED_LIBRARIES += liba2dp
    endif
    ifeq ($(AUDIO_POLICY_TEST),true)
      LOCAL_CFLAGS += -DAUDIO_POLICY_TEST
    endif
    ifeq ($(TARGET_SIMULATOR),true)
        ifeq ($(HOST_OS),linux)
            LOCAL_LDLIBS += -lrt -lpthread
        endif
    endif
    ifeq ($(BOARD_USE_LVMX),true)
        LOCAL_CFLAGS += -DLVMX
        LOCAL_C_INCLUDES += vendor/nxp
        LOCAL_STATIC_LIBRARIES += liblifevibes
        LOCAL_SHARED_LIBRARIES += liblvmxservice
    #    LOCAL_SHARED_LIBRARIES += liblvmxipc
    endif
    include $(BUILD_SHARED_LIBRARY) 模块三编译成动态库


    (4)编译一个应用程序(APK)
      LOCAL_PATH := $(call my-dir)
      include $(CLEAR_VARS)
       
      # Build all java files in the java subdirectory-->直译(建立在java子目录中的所有Java文件
      LOCAL_SRC_FILES := $(call all-subdir-java-files)
       
      # Name of the APK to build-->直译(创建APK的名称)
      LOCAL_PACKAGE_NAME := LocalPackage
       
      # Tell it to build an APK-->直译(告诉它来建立一个APK
      include $(BUILD_PACKAGE)

    (5)编译一个依赖于静态Java库(static.jar)的应用程序
      LOCAL_PATH := $(call my-dir)
      include $(CLEAR_VARS)
       
      # List of static libraries to include in the package
      LOCAL_STATIC_JAVA_LIBRARIES := static-library
       
      # Build all java files in the java subdirectory
      LOCAL_SRC_FILES := $(call all-subdir-java-files)
       
      # Name of the APK to build
      LOCAL_PACKAGE_NAME := LocalPackage
       
      # Tell it to build an APK
      include $(BUILD_PACKAGE)

    (6)编译一个需要用平台的key签名的应用程序
      LOCAL_PATH := $(call my-dir)
      include $(CLEAR_VARS)
       
      # Build all java files in the java subdirectory
      LOCAL_SRC_FILES := $(call all-subdir-java-files)
       
      # Name of the APK to build
      LOCAL_PACKAGE_NAME := LocalPackage
       
      LOCAL_CERTIFICATE := platform
       
      # Tell it to build an APK
      include $(BUILD_PACKAGE)


    (7)编译一个需要用特定key前面的应用程序
      LOCAL_PATH := $(call my-dir)
      include $(CLEAR_VARS)
       
      # Build all java files in the java subdirectory
      LOCAL_SRC_FILES := $(call all-subdir-java-files)
       
      # Name of the APK to build
      LOCAL_PACKAGE_NAME := LocalPackage
       
      LOCAL_CERTIFICATE := vendor/example/certs/app
       
      # Tell it to build an APK
      include $(BUILD_PACKAGE)

    (8)添加一个预编译应用程序
      LOCAL_PATH := $(call my-dir)
      include $(CLEAR_VARS)
       
      # Module name should match apk name to be installed.
      LOCAL_MODULE := LocalModuleName
      LOCAL_SRC_FILES := $(LOCAL_MODULE).apk
      LOCAL_MODULE_CLASS := APPS
      LOCAL_MODULE_SUFFIX := $(COMMON_ANDROID_PACKAGE_SUFFIX)
       
      include $(BUILD_PREBUILT)

    (9)添加一个静态JAVA库
      LOCAL_PATH := $(call my-dir)
      include $(CLEAR_VARS)
       
      # Build all java files in the java subdirectory
      LOCAL_SRC_FILES := $(call all-subdir-java-files)
       
      # Any libraries that this library depends on
      LOCAL_JAVA_LIBRARIES := android.test.runner
       
      # The name of the jar file to create
      LOCAL_MODULE := sample
       
      # Build a static jar file.
      include $(BUILD_STATIC_JAVA_LIBRARY)

    (10)Android.mk的编译模块中间可以定义相关的编译内容,也就是指定相关的变量如下:
    LOCAL_AAPT_FLAGS

    LOCAL_ACP_UNAVAILABLE 

    LOCAL_ADDITIONAL_JAVA_DIR 
     
    LOCAL_AIDL_INCLUDES 

    LOCAL_ALLOW_UNDEFINED_SYMBOLS 

    LOCAL_ARM_MODE 

    LOCAL_ASFLAGS 

    LOCAL_ASSET_DIR 

    LOCAL_ASSET_FILES 在Android.mk文件中编译应用程序(BUILD_PACKAGE)时设置此变量,表示资源文件,
                      通常会定义成LOCAL_ASSET_FILES += $(call find-subdir-assets)
     
    LOCAL_BUILT_MODULE_STEM  
    LOCAL_C_INCLUDES 额外的C/C++编译头文件路径,用LOCAL_PATH表示本文件所在目录
                     举例如下:
                     LOCAL_C_INCLUDES += extlibs/zlib-1.2.3
                     LOCAL_C_INCLUDES += $(LOCAL_PATH)/src 
     
    LOCAL_CC 指定C编译器

    LOCAL_CERTIFICATE  签名认证

    LOCAL_CFLAGS 为C/C++编译器定义额外的标志(如宏定义),举例:LOCAL_CFLAGS += -DLIBUTILS_NATIVE=1
     
    LOCAL_CLASSPATH 

    LOCAL_COMPRESS_MODULE_SYMBOLS 

    LOCAL_COPY_HEADERS install应用程序时需要复制的头文件,必须同时定义LOCAL_COPY_HEADERS_TO
     
    LOCAL_COPY_HEADERS_TO install应用程序时复制头文件的目的路径

    LOCAL_CPP_EXTENSION 如果你的C++文件不是以cpp为文件后缀,你可以通过LOCAL_CPP_EXTENSION指定C++文件后缀名 
                        如:LOCAL_CPP_EXTENSION := .cc
                        注意统一模块中C++文件后缀必须保持一致。

    LOCAL_CPPFLAGS 传递额外的标志给C++编译器,如:LOCAL_CPPFLAGS += -ffriend-injection

    LOCAL_CXX 指定C++编译器
     
    LOCAL_DX_FLAGS

    LOCAL_EXPORT_PACKAGE_RESOURCES

    LOCAL_FORCE_STATIC_EXECUTABLE 如果编译的可执行程序要进行静态链接(执行时不依赖于任何动态库),则设置LOCAL_FORCE_STATIC_EXECUTABLE:=true 
                                  目前只有libc有静态库形式,这个只有文件系统中/sbin目录下的应用程序会用到,这个目录下的应用程序在运行时通常
                                  文件系统的其它部分还没有加载,所以必须进行静态链接。
     
    LOCAL_GENERATED_SOURCES
     
    LOCAL_INSTRUMENTATION_FOR

    LOCAL_INSTRUMENTATION_FOR_PACKAGE_NAME

    LOCAL_INTERMEDIATE_SOURCES

    LOCAL_INTERMEDIATE_TARGETS

    LOCAL_IS_HOST_MODULE

    LOCAL_JAR_MANIFEST

    LOCAL_JARJAR_RULES

    LOCAL_JAVA_LIBRARIES 编译java应用程序和库的时候指定包含的java类库,目前有core和framework两种
                         多数情况下定义成:LOCAL_JAVA_LIBRARIES := core framework
                         注意LOCAL_JAVA_LIBRARIES不是必须的,而且编译APK时不允许定义(系统会自动添加)
     
    LOCAL_JAVA_RESOURCE_DIRS 

    LOCAL_JAVA_RESOURCE_FILES 

    LOCAL_JNI_SHARED_LIBRARIES 

    LOCAL_LDFLAGS 传递额外的参数给连接器(务必注意参数的顺序)
     
    LOCAL_LDLIBS 为可执行程序或者库的编译指定额外的库,指定库以"-lxxx"格式,举例:
                 LOCAL_LDLIBS += -lcurses -lpthread
                 LOCAL_LDLIBS += -Wl,-z,origin 
     
    LOCAL_MODULE 生成的模块的名称(注意应用程序名称用LOCAL_PACKAGE_NAME而不是LOCAL_MODULE)

    LOCAL_MODULE_PATH 生成模块的路径
     
    LOCAL_MODULE_STEM 
     
    LOCAL_MODULE_TAGS 生成模块的标记 
     
    LOCAL_NO_DEFAULT_COMPILER_FLAGS 

    LOCAL_NO_EMMA_COMPILE 

    LOCAL_NO_EMMA_INSTRUMENT 

    LOCAL_NO_STANDARD_LIBRARIES 

    LOCAL_OVERRIDES_PACKAGES 

    LOCAL_PACKAGE_NAME APK应用程序的名称 

    LOCAL_POST_PROCESS_COMMAND
     
    LOCAL_PREBUILT_EXECUTABLES 预编译including $(BUILD_PREBUILT)或者$(BUILD_HOST_PREBUILT)时所用,指定需要复制的可执行文件

    LOCAL_PREBUILT_JAVA_LIBRARIES 

    LOCAL_PREBUILT_LIBS 预编译including $(BUILD_PREBUILT)或者$(BUILD_HOST_PREBUILT)时所用, 指定需要复制的库.

    LOCAL_PREBUILT_OBJ_FILES 

    LOCAL_PREBUILT_STATIC_JAVA_LIBRARIES  
     
    LOCAL_PRELINK_MODULE 是否需要预连接处理(默认需要,用来做动态库优化)

    LOCAL_REQUIRED_MODULES 指定模块运行所依赖的模块(模块安装时将会同步安装它所依赖的模块)
     
    LOCAL_RESOURCE_DIR

    LOCAL_SDK_VERSION

    LOCAL_SHARED_LIBRARIES 可链接动态库
     
    LOCAL_SRC_FILES 编译源文件

     
    LOCAL_STATIC_JAVA_LIBRARIES 

    LOCAL_STATIC_LIBRARIES 可链接静态库 
     
    LOCAL_UNINSTALLABLE_MODULE 

    LOCAL_UNSTRIPPED_PATH
     
    LOCAL_WHOLE_STATIC_LIBRARIES 指定模块所需要载入的完整静态库(这些精通库在链接是不允许链接器删除其中无用的代码)
     
    LOCAL_YACCFLAGS
     
    OVERRIDE_BUILT_MODULE_PATH

     

    (来自:http://www.cnblogs.com/hesiming/archive/2011/03/15/1984444.html)

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  • 原文地址:https://www.cnblogs.com/ikaka/p/3968435.html
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