cc_prebuilt_binary { name: "mountnfs.sh", vendor: true, compile_multilib: "64", arch: { arm64: { srcs:["mountnfs.sh"], }, }, strip: { none: true, }, }解释这段代码

这段代码是一个 Android.mk 文件中的一个 cc_prebuilt_binary 模块，用于将一个已经编译好的二进制文件 mountnfs.sh 打包进 Android 系统中。具体解释如下：

- name：指定此模块的名称为 "mountnfs.sh"。
- vendor：指定此模块仅供给系统的 vendor 分区使用。
- compile_multilib：指定此模块编译为 64 位架构。
- arch：指定此模块编译的架构为 arm64，即 64 位 ARM 架构。
- srcs：指定此模块的源文件为 "mountnfs.sh"。
- strip：指定此模块不进行 strip 操作，即不对二进制文件进行剥离符号操作，以保留调试信息。如果设置为 true，则进行 strip 操作；如果设置为 none，则不进行 strip 操作。

相关问题

cc_prebuilt_library_shared { name: "libTSDesensitizationAlgorithm", srcs: ["libTSDesensitizationAlgorithm.so"], compile_multilib : "64", }转为Android.mk

以下是将cc_prebuilt_library_shared转换为Android.mk的示例：

include $(CLEAR_VARS)
LOCAL_MODULE := libTSDesensitizationAlgorithm
LOCAL_SRC_FILES := libTSDesensitizationAlgorithm.so
LOCAL_MULTILIB := 64
include $(PREBUILT_SHARED_LIBRARY)

其中，PREBUILT_SHARED_LIBRARY是一个预定义的Makefile规则，用于构建预编译的共享库模块。LOCAL_MULTILIB用于指定模块所属的multilib架构。

LOCAL_PREBUILT_JNI_LIBS:

LOCAL_PREBUILT_JNI_LIBS is a variable used in Android.mk files to specify pre-built JNI libraries that are needed by the project. JNI (Java Native Interface) is a programming framework that enables Java code to call and be called by native applications or libraries written in C or C++.

When building an Android app that uses native code, the NDK (Native Development Kit) is used to compile the C/C++ code into a native library that can be accessed by the Java code through JNI. However, sometimes it's necessary to include pre-built native libraries that were compiled outside of the Android build system.

In such cases, the LOCAL_PREBUILT_JNI_LIBS variable is used to specify the path to the pre-built libraries and their associated header files, if any. The variable is typically defined in the Android.mk file of the module that requires the pre-built libraries.

For example, to include a pre-built library named libfoo.so located in the /path/to/libfoo directory, the following lines would be added to the Android.mk file:

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)

LOCAL_MODULE := foo
LOCAL_SRC_FILES := libfoo.so
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include

include $(PREBUILT_SHARED_LIBRARY)

Here, the LOCAL_MODULE variable specifies the name of the module that will be built, LOCAL_SRC_FILES specifies the name of the pre-built library file, and LOCAL_EXPORT_C_INCLUDES specifies the path to any header files needed by the library.

The include $(PREBUILT_SHARED_LIBRARY) line tells the build system to include the pre-built library in the module being built.