Android源码中makefile(Android.mk)写法（转载）

    转自：http://blog.163.com/hero_213/blog/static/39891214201201032130466/，感谢作者。

    另外还可参考一篇不错的文章，地址为：http://blog.csdn.net/zhandoushi1982/article/details/5316669，文章名为《Android.mk的用法和基础》，作者为DBOY。

 

    (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)：

 1 LOCAL_PATH:= $(call my-dir)
 2 include $(CLEAR_VARS) 模块一
 3 ifeq ($(AUDIO_POLICY_TEST),true)
 4 ENABLE_AUDIO_DUMP := true
 5 endif
 6 LOCAL_SRC_FILES:= \
 7 AudioHardwareGeneric.cpp \
 8 AudioHardwareStub.cpp \
 9 AudioHardwareInterface.cpp
10 ifeq ($(ENABLE_AUDIO_DUMP),true)
11 LOCAL_SRC_FILES += AudioDumpInterface.cpp
12 LOCAL_CFLAGS += -DENABLE_AUDIO_DUMP
13 endif
14 LOCAL_SHARED_LIBRARIES := \
15 libcutils \
16 libutils \
17 libbinder \
18 libmedia \
19 libhardware_legacy
20 ifeq ($(strip $(BOARD_USES_GENERIC_AUDIO)),true)
21 LOCAL_CFLAGS += -DGENERIC_AUDIO
22 endif
23 LOCAL_MODULE:= libaudiointerface
24 ifeq ($(BOARD_HAVE_BLUETOOTH),true)
25 LOCAL_SRC_FILES += A2dpAudioInterface.cpp
26 LOCAL_SHARED_LIBRARIES += liba2dp
27 LOCAL_CFLAGS += -DWITH_BLUETOOTH -DWITH_A2DP
28 LOCAL_C_INCLUDES += $(call include-path-for, bluez)
29 endif
30 include $(BUILD_STATIC_LIBRARY) 模块一编译成静态库
31 include $(CLEAR_VARS) 模块二
32 LOCAL_SRC_FILES:= \
33 AudioPolicyManagerBase.cpp
34 LOCAL_SHARED_LIBRARIES := \
35 libcutils \
36 libutils \
37 libmedia
38 ifeq ($(TARGET_SIMULATOR),true)
39 LOCAL_LDLIBS += -ldl
40 else
41 LOCAL_SHARED_LIBRARIES += libdl
42 endif
43 LOCAL_MODULE:= libaudiopolicybase
44 ifeq ($(BOARD_HAVE_BLUETOOTH),true)
45 LOCAL_CFLAGS += -DWITH_A2DP
46 endif
47 ifeq ($(AUDIO_POLICY_TEST),true)
48 LOCAL_CFLAGS += -DAUDIO_POLICY_TEST
49 endif
50 include $(BUILD_STATIC_LIBRARY) 模块二编译成静态库
51 include $(CLEAR_VARS) 模块三
52 LOCAL_SRC_FILES:= \
53 AudioFlinger.cpp \
54 AudioMixer.cpp.arm \
55 AudioResampler.cpp.arm \
56 AudioResamplerSinc.cpp.arm \
57 AudioResamplerCubic.cpp.arm \
58 AudioPolicyService.cpp
59 LOCAL_SHARED_LIBRARIES := \
60 libcutils \
61 libutils \
62 libbinder \
63 libmedia \
64 libhardware_legacy
65 ifeq ($(strip $(BOARD_USES_GENERIC_AUDIO)),true)
66 LOCAL_STATIC_LIBRARIES += libaudiointerface libaudiopolicybase
67 LOCAL_CFLAGS += -DGENERIC_AUDIO
68 else
69 LOCAL_SHARED_LIBRARIES += libaudio libaudiopolicy
70 endif
71 ifeq ($(TARGET_SIMULATOR),true)
72 LOCAL_LDLIBS += -ldl
73 else
74 LOCAL_SHARED_LIBRARIES += libdl
75 endif
76 LOCAL_MODULE:= libaudioflinger
77 ifeq ($(BOARD_HAVE_BLUETOOTH),true)
78 LOCAL_CFLAGS += -DWITH_BLUETOOTH -DWITH_A2DP
79 LOCAL_SHARED_LIBRARIES += liba2dp
80 endif
81 ifeq ($(AUDIO_POLICY_TEST),true)
82 LOCAL_CFLAGS += -DAUDIO_POLICY_TEST
83 endif
84 ifeq ($(TARGET_SIMULATOR),true)
85 ifeq ($(HOST_OS),linux)
86 LOCAL_LDLIBS += -lrt -lpthread
87 endif
88 endif
89 ifeq ($(BOARD_USE_LVMX),true)
90 LOCAL_CFLAGS += -DLVMX
91 LOCAL_C_INCLUDES += vendor/nxp
92 LOCAL_STATIC_LIBRARIES += liblifevibes
93 LOCAL_SHARED_LIBRARIES += liblvmxservice
94 # LOCAL_SHARED_LIBRARIES += liblvmxipc
95 endif
96 include $(BUILD_SHARED_LIBRARY) 模块三编译成动态库

    (4)编译一个应用程序(APK)
  

 1 LOCAL_PATH := $(call my-dir)
 2 include $(CLEAR_VARS)
 3 
 4 # Build all java files in the java subdirectory-->直译（建立在java子目录中的所有Java文件）
 5 LOCAL_SRC_FILES := $(call all-subdir-java-files)
 6 
 7 # Name of the APK to build-->直译（创建APK的名称）
 8 LOCAL_PACKAGE_NAME := LocalPackage
 9 
10 # Tell it to build an APK-->直译（告诉它来建立一个APK）
11 include $(BUILD_PACKAGE)

    (5)编译一个依赖于静态Java库(static.jar)的应用程序
  

 1 LOCAL_PATH := $(call my-dir)
 2 include $(CLEAR_VARS)
 3 
 4 # List of static libraries to include in the package
 5 LOCAL_STATIC_JAVA_LIBRARIES := static-library
 6 
 7 # Build all java files in the java subdirectory
 8 LOCAL_SRC_FILES := $(call all-subdir-java-files)
 9 
10 # Name of the APK to build
11 LOCAL_PACKAGE_NAME := LocalPackage
12 
13 # Tell it to build an APK
14 include $(BUILD_PACKAGE)

    (6)编译一个需要用平台的key签名的应用程序
  

 1 LOCAL_PATH := $(call my-dir)
 2 include $(CLEAR_VARS)
 3 
 4 # Build all java files in the java subdirectory
 5 LOCAL_SRC_FILES := $(call all-subdir-java-files)
 6 
 7 # Name of the APK to build
 8 LOCAL_PACKAGE_NAME := LocalPackage
 9 
10 LOCAL_CERTIFICATE := platform
11 
12 # Tell it to build an APK
13 include $(BUILD_PACKAGE)

    (7)编译一个需要用特定key前面的应用程序
 

 1 LOCAL_PATH := $(call my-dir)
 2 include $(CLEAR_VARS)
 3 
 4 # Build all java files in the java subdirectory
 5 LOCAL_SRC_FILES := $(call all-subdir-java-files)
 6 
 7 # Name of the APK to build
 8 LOCAL_PACKAGE_NAME := LocalPackage
 9 
10 LOCAL_CERTIFICATE := vendor/example/certs/app
11 
12 # Tell it to build an APK
13 include $(BUILD_PACKAGE)

    (8)添加一个预编译应用程序
 

 1 LOCAL_PATH := $(call my-dir)
 2 include $(CLEAR_VARS)
 3 
 4 # Module name should match apk name to be installed.
 5 LOCAL_MODULE := LocalModuleName
 6 LOCAL_SRC_FILES := $(LOCAL_MODULE).apk
 7 LOCAL_MODULE_CLASS := APPS
 8 LOCAL_MODULE_SUFFIX := $(COMMON_ANDROID_PACKAGE_SUFFIX)
 9 
10 include $(BUILD_PREBUILT)

    (9)添加一个静态JAVA库
  

 1 LOCAL_PATH := $(call my-dir)
 2 include $(CLEAR_VARS)
 3 
 4 # Build all java files in the java subdirectory
 5 LOCAL_SRC_FILES := $(call all-subdir-java-files)
 6 
 7 # Any libraries that this library depends on
 8 LOCAL_JAVA_LIBRARIES := android.test.runner
 9 
10 # The name of the jar file to create
11 LOCAL_MODULE := sample
12 
13 # Build a static jar file.
14 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

posted on 2013-05-07 16:51  次奥砖家  阅读(1280)  评论(0)  编辑  收藏  举报

导航