Android.bp和Androd.mk区别以及宏变量对应关系_andriod bp 和 android mk-优快云博客

文章详细阐述了Android.bp和Android.mk在Android编译系统中的角色和差异，以及它们如何转换为Ninja格式进行编译。Android.bp是更现代的配置文件，不支持复杂的逻辑，而Android.mk则包含流程控制。转换过程中，Soong和Blueprint工具起到关键作用。此外，文章还提到了一些宏变量的对应关系和常见编译错误的解决方案。

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一、Android.bp和Androd.mk区别以及宏变量对应关系

Android.bp --> Soong --> Ninja
Makefile or Android.mk --> kati --> Ninja

最终都是生成Ninja格式文件进行编译。

相关概念：

ninja是一个编译框架，会根据相应的ninja格式的配置文件进行编译，但是ninja文件一般不会手动修改，而是通过将 Android.bp文件转换成ninja格式文件来编译
Soong类似于之前的Makefile编译系统的核心，负责提供Android.bp语义解析，并将之转换成Ninja文件。
Blueprint是生成、解析Android.bp的工具，是Soong的一部分。Soong负责Android编译而设计的工具，而Blueprint只是解析文件格式，Soong解析内容的具体含义。Blueprint和Soong都是由Golang写的项目，从Android 7.0，prebuilts/go/目录下新增Golang所需的运行环境，在编译时使用
kati是专为Android开发的一个基于Golang和C++的工具，主要功能是把Android.mk文件转换成Ninja文件。代码路径是build/kati/，编译后的产物是ckati

二、mk转换为bp

Android.bp的出现就是为了替换Android.mk文件。bp跟mk文件不同，它是纯粹的配置，没有分支、循环等流程控制，不能做算数逻辑运算。如果需要控制逻辑，那么只能通过Go语言编写。旧的mk可以转换为bp，Soong会编译生成一个androidmk命令，用于将Android.mk文件转换为Android.bp文件。只针对简单的mk文件转换，涉及分支，循环等控制转换并不准确。即：

Android.mk --> Soong中androidmk --> Android.bp

三、宏变量对应关系

直接在"build/soong/androidmk/androidmk/android.go"文件中找：

var moduleTypes = map[string]string{"BUILD_SHARED_LIBRARY":        "cc_library_shared","BUILD_STATIC_LIBRARY":        "cc_library_static","BUILD_HOST_SHARED_LIBRARY":   "cc_library_host_shared","BUILD_HOST_STATIC_LIBRARY":   "cc_library_host_static","BUILD_HEADER_LIBRARY":        "cc_library_headers","BUILD_EXECUTABLE":            "cc_binary","BUILD_HOST_EXECUTABLE":       "cc_binary_host","BUILD_NATIVE_TEST":           "cc_test","BUILD_HOST_NATIVE_TEST":      "cc_test_host","BUILD_NATIVE_BENCHMARK":      "cc_benchmark","BUILD_HOST_NATIVE_BENCHMARK": "cc_benchmark_host","BUILD_JAVA_LIBRARY":             "java_library_installable", // will be rewritten to java_library by bpfix"BUILD_STATIC_JAVA_LIBRARY":      "java_library","BUILD_HOST_JAVA_LIBRARY":        "java_library_host","BUILD_HOST_DALVIK_JAVA_LIBRARY": "java_library_host_dalvik","BUILD_PACKAGE":                  "android_app","BUILD_RRO_PACKAGE":              "runtime_resource_overlay","BUILD_CTS_EXECUTABLE":          "cc_binary",               // will be further massaged by bpfix depending on the output path"BUILD_CTS_SUPPORT_PACKAGE":     "cts_support_package",     // will be rewritten to android_test by bpfix"BUILD_CTS_PACKAGE":             "cts_package",             // will be rewritten to android_test by bpfix"BUILD_CTS_TARGET_JAVA_LIBRARY": "cts_target_java_library", // will be rewritten to java_library by bpfix"BUILD_CTS_HOST_JAVA_LIBRARY":   "cts_host_java_library",   // will be rewritten to java_library_host by bpfix
}var prebuiltTypes = map[string]string{"SHARED_LIBRARIES": "cc_prebuilt_library_shared","STATIC_LIBRARIES": "cc_prebuilt_library_static","EXECUTABLES":      "cc_prebuilt_binary","JAVA_LIBRARIES":   "java_import","APPS":             "android_app_import","ETC":              "prebuilt_etc",
}var rewriteProperties = map[string](func(variableAssignmentContext) error){// custom functions"LOCAL_32_BIT_ONLY":                    local32BitOnly,"LOCAL_AIDL_INCLUDES":                  localAidlIncludes,"LOCAL_ASSET_DIR":                      localizePathList("asset_dirs"),"LOCAL_C_INCLUDES":                     localIncludeDirs,"LOCAL_EXPORT_C_INCLUDE_DIRS":          exportIncludeDirs,"LOCAL_JARJAR_RULES":                   localizePath("jarjar_rules"),"LOCAL_LDFLAGS":                        ldflags,"LOCAL_MODULE_CLASS":                   prebuiltClass,"LOCAL_MODULE_STEM":                    stem,"LOCAL_MODULE_HOST_OS":                 hostOs,"LOCAL_RESOURCE_DIR":                   localizePathList("resource_dirs"),"LOCAL_SANITIZE":                       sanitize(""),"LOCAL_SANITIZE_DIAG":                  sanitize("diag."),"LOCAL_STRIP_MODULE":                   strip(),"LOCAL_CFLAGS":                         cflags,"LOCAL_UNINSTALLABLE_MODULE":           invert("installable"),"LOCAL_PROGUARD_ENABLED":               proguardEnabled,"LOCAL_MODULE_PATH":                    prebuiltModulePath,"LOCAL_REPLACE_PREBUILT_APK_INSTALLED": prebuiltPreprocessed,// composite functions"LOCAL_MODULE_TAGS": includeVariableIf(bpVariable{"tags", bpparser.ListType}, not(valueDumpEquals("optional"))),// skip functions"LOCAL_ADDITIONAL_DEPENDENCIES": skip, // TODO: check for only .mk files?"LOCAL_CPP_EXTENSION":           skip,"LOCAL_MODULE_SUFFIX":           skip, // TODO"LOCAL_PATH":                    skip, // Nothing to do, except maybe avoid the "./" in paths?"LOCAL_PRELINK_MODULE":          skip, // Already phased out"LOCAL_BUILT_MODULE_STEM":       skip,"LOCAL_USE_AAPT2":               skip, // Always enabled in Soong"LOCAL_JAR_EXCLUDE_FILES":       skip, // Soong never excludes files from jars"LOCAL_ANNOTATION_PROCESSOR_CLASSES": skip, // Soong gets the processor classes from the plugin"LOCAL_CTS_TEST_PACKAGE":             skip, // Obsolete"LOCAL_JACK_ENABLED":                 skip, // Obselete"LOCAL_JACK_FLAGS":                   skip, // Obselete
}func init() {addStandardProperties(bpparser.StringType,map[string]string{"LOCAL_MODULE":                  "name","LOCAL_CXX_STL":                 "stl","LOCAL_MULTILIB":                "compile_multilib","LOCAL_ARM_MODE_HACK":           "instruction_set","LOCAL_SDK_VERSION":             "sdk_version","LOCAL_MIN_SDK_VERSION":         "min_sdk_version","LOCAL_NDK_STL_VARIANT":         "stl","LOCAL_JAR_MANIFEST":            "manifest","LOCAL_CERTIFICATE":             "certificate","LOCAL_PACKAGE_NAME":            "name","LOCAL_MODULE_RELATIVE_PATH":    "relative_install_path","LOCAL_PROTOC_OPTIMIZE_TYPE":    "proto.type","LOCAL_MODULE_OWNER":            "owner","LOCAL_RENDERSCRIPT_TARGET_API": "renderscript.target_api","LOCAL_NOTICE_FILE":             "notice","LOCAL_JAVA_LANGUAGE_VERSION":   "java_version","LOCAL_INSTRUMENTATION_FOR":     "instrumentation_for","LOCAL_MANIFEST_FILE":           "manifest","LOCAL_DEX_PREOPT_PROFILE_CLASS_LISTING": "dex_preopt.profile","LOCAL_TEST_CONFIG":                      "test_config","LOCAL_RRO_THEME":                        "theme",})addStandardProperties(bpparser.ListType,map[string]string{"LOCAL_SRC_FILES":                     "srcs","LOCAL_SRC_FILES_EXCLUDE":             "exclude_srcs","LOCAL_HEADER_LIBRARIES":              "header_libs","LOCAL_SHARED_LIBRARIES":              "shared_libs","LOCAL_STATIC_LIBRARIES":              "static_libs","LOCAL_WHOLE_STATIC_LIBRARIES":        "whole_static_libs","LOCAL_SYSTEM_SHARED_LIBRARIES":       "system_shared_libs","LOCAL_ASFLAGS":                       "asflags","LOCAL_CLANG_ASFLAGS":                 "clang_asflags","LOCAL_COMPATIBILITY_SUPPORT_FILES":   "data","LOCAL_CONLYFLAGS":                    "conlyflags","LOCAL_CPPFLAGS":                      "cppflags","LOCAL_REQUIRED_MODULES":              "required","LOCAL_HOST_REQUIRED_MODULES":         "host_required","LOCAL_TARGET_REQUIRED_MODULES":       "target_required","LOCAL_OVERRIDES_MODULES":             "overrides","LOCAL_LDLIBS":                        "host_ldlibs","LOCAL_CLANG_CFLAGS":                  "clang_cflags","LOCAL_YACCFLAGS":                     "yacc.flags","LOCAL_SANITIZE_RECOVER":              "sanitize.recover","LOCAL_LOGTAGS_FILES":                 "logtags","LOCAL_EXPORT_HEADER_LIBRARY_HEADERS": "export_header_lib_headers","LOCAL_EXPORT_SHARED_LIBRARY_HEADERS": "export_shared_lib_headers","LOCAL_EXPORT_STATIC_LIBRARY_HEADERS": "export_static_lib_headers","LOCAL_INIT_RC":                       "init_rc","LOCAL_VINTF_FRAGMENTS":               "vintf_fragments","LOCAL_TIDY_FLAGS":                    "tidy_flags",// TODO: This is comma-separated, not space-separated"LOCAL_TIDY_CHECKS":           "tidy_checks","LOCAL_RENDERSCRIPT_INCLUDES": "renderscript.include_dirs","LOCAL_RENDERSCRIPT_FLAGS":    "renderscript.flags","LOCAL_JAVA_RESOURCE_DIRS":    "java_resource_dirs","LOCAL_JAVA_RESOURCE_FILES":   "java_resources","LOCAL_JAVACFLAGS":            "javacflags","LOCAL_ERROR_PRONE_FLAGS":     "errorprone.javacflags","LOCAL_DX_FLAGS":              "dxflags","LOCAL_JAVA_LIBRARIES":        "libs","LOCAL_STATIC_JAVA_LIBRARIES": "static_libs","LOCAL_JNI_SHARED_LIBRARIES":  "jni_libs","LOCAL_AAPT_FLAGS":            "aaptflags","LOCAL_PACKAGE_SPLITS":        "package_splits","LOCAL_COMPATIBILITY_SUITE":   "test_suites","LOCAL_OVERRIDES_PACKAGES":    "overrides","LOCAL_ANNOTATION_PROCESSORS": "plugins","LOCAL_PROGUARD_FLAGS":      "optimize.proguard_flags","LOCAL_PROGUARD_FLAG_FILES": "optimize.proguard_flags_files",// These will be rewritten to libs/static_libs by bpfix, after their presence is used to convert// java_library_static to android_library."LOCAL_SHARED_ANDROID_LIBRARIES": "android_libs","LOCAL_STATIC_ANDROID_LIBRARIES": "android_static_libs","LOCAL_ADDITIONAL_CERTIFICATES":  "additional_certificates",// Jacoco filters:"LOCAL_JACK_COVERAGE_INCLUDE_FILTER": "jacoco.include_filter","LOCAL_JACK_COVERAGE_EXCLUDE_FILTER": "jacoco.exclude_filter","LOCAL_FULL_LIBS_MANIFEST_FILES": "additional_manifests",})addStandardProperties(bpparser.BoolType,map[string]string{// Bool properties"LOCAL_IS_HOST_MODULE":             "host","LOCAL_CLANG":                      "clang","LOCAL_FORCE_STATIC_EXECUTABLE":    "static_executable","LOCAL_NATIVE_COVERAGE":            "native_coverage","LOCAL_NO_CRT":                     "nocrt","LOCAL_ALLOW_UNDEFINED_SYMBOLS":    "allow_undefined_symbols","LOCAL_RTTI_FLAG":                  "rtti","LOCAL_PACK_MODULE_RELOCATIONS":    "pack_relocations","LOCAL_TIDY":                       "tidy","LOCAL_USE_CLANG_LLD":              "use_clang_lld","LOCAL_PROPRIETARY_MODULE":         "proprietary","LOCAL_VENDOR_MODULE":              "vendor","LOCAL_ODM_MODULE":                 "device_specific","LOCAL_PRODUCT_MODULE":             "product_specific","LOCAL_SYSTEM_EXT_MODULE":          "system_ext_specific","LOCAL_EXPORT_PACKAGE_RESOURCES":   "export_package_resources","LOCAL_PRIVILEGED_MODULE":          "privileged","LOCAL_AAPT_INCLUDE_ALL_RESOURCES": "aapt_include_all_resources","LOCAL_DONT_MERGE_MANIFESTS":       "dont_merge_manifests","LOCAL_USE_EMBEDDED_NATIVE_LIBS":   "use_embedded_native_libs","LOCAL_USE_EMBEDDED_DEX":           "use_embedded_dex","LOCAL_DEX_PREOPT":                  "dex_preopt.enabled","LOCAL_DEX_PREOPT_APP_IMAGE":        "dex_preopt.app_image","LOCAL_DEX_PREOPT_GENERATE_PROFILE": "dex_preopt.profile_guided","LOCAL_PRIVATE_PLATFORM_APIS": "platform_apis","LOCAL_JETIFIER_ENABLED":      "jetifier","LOCAL_IS_UNIT_TEST": "unit_test","LOCAL_ENFORCE_USES_LIBRARIES": "enforce_uses_libs",})
}

四、常用宏变量作用

LOCAL_PROPRIETARY_MODULE，proprietary：true控制生成路径到vendor/lib，false就是system/lib;

LOCAL_CLANG，clang：true来指定默认编译器为Clang，Android 8.0后不需要指定，默认是Clang；

AOSP编译错误汇总

unkonw type namespace

namespace不对.解决方法将 c 文件改成 cpp

can not link against

因为编译的模块的测试模块依赖的共享库是vendor的, 所以测试模块页必须是vendor的

在测试模块加上:

LOCAL_VENDOR_MODULE := true

missing dependencies

这个是找不到应用的模块, 原因是模块是用 Android.mk 构建编译的,而我编译的测试模块是 Android.bp 构建的

全部改成 Android.bp

用 androidmk 将 Android.mk 生成为 Android.bp , 但是bp是无法条件编译的, 如果里面有条件编译你可能需要修改你的 Android.mk
同时你的模块如果引用了其他模块,其他模块也要改成 Android.mk, 总之就是麻烦不好用

全部改成 Android.mk

下面是例子:
BUILD_NATIVE_TEST 自动包含依赖项 gtest
LOCAL_MODULE_TAGS 标志着测试模块

include $(CLEAR_VARS)
LOCAL_MODULE := config-test
LOCAL_SRC_FILES := config_test.cpp
LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
LOCAL_CFLAGS = -Wall -Werror -Wunused
#LOCAL_CLANG_CFLAGS += -Wno-error=unused-const-variable -Wno-error=unused-private-field
LOCAL_MODULE_TAGS := tests
LOCAL_SHARED_LIBRARIES := libconfig
LOCAL_VENDOR_MODULE := true
LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
include $(BUILD_NATIVE_TEST)

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