Android studio CMake 不会 link 预建库到主 .so 文件

Question

我最终为 android 交叉编译了一个 capstone library，但现在我在 link 使用我的主 .so 库（native-lib）时遇到了麻烦. 我按照 official web site.

中显示的步骤操作

我的CMakeList.txt如下。

# Sets the minimum version of CMake required to build your native library.
# This ensures that a certain set of CMake features is available to
# your build.

cmake_minimum_required(VERSION 3.4.1)

# Specifies a library name, specifies whether the library is STATIC or
# SHARED, and provides relative paths to the source code. You can
# define multiple libraries by adding multiple add.library() commands,
# and CMake builds them for you. When you build your app, Gradle
# automatically packages shared libraries with your APK.

add_library( # Specifies the name of the library.
             native-lib

             # Sets the library as a shared library.
             SHARED

             # Provides a relative path to your source file(s).
             src/main/cpp/native-lib.cpp )

find_library( # Defines the name of the path variable that stores the
              # location of the NDK library.
              log-lib

              # Specifies the name of the NDK library that
              # CMake needs to locate.
              log )

# Links your native library against one or more other native libraries.
#target_link_libraries( # Specifies the target library.
#                       native-lib
#
#                      # Links the log library to the target library.
#                       ${log-lib} )

add_library( capstone
        SHARED
        IMPORTED )

set_target_properties( # Specifies the target library.
        capstone

        # Specifies the parameter you want to define.
        PROPERTIES IMPORTED_LOCATION

        # Provides the path to the library you want to import.
        C:/Users/82102/AndroidStudioProjects/Android-Disassembler/capstone/${ANDROID_ABI}/libcapstone.so.5 )

target_link_libraries( native-lib capstone ${log-lib} ) #app-glue


include_directories( capstone/include/ )

构建的 APK 有 native-lib.so，但没有 'libcapstone.soorlibcapstone.so.5`。因此，当我启动 APK 时，会发生以下错误。

2019-08-22 14:21:01.340 6122-6122/com.kyhsgeekcode.disassembler E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.kyhsgeekcode.disassembler, PID: 6122
    java.lang.UnsatisfiedLinkError: dlopen failed: library "libcapstone.so.5" not found
        at java.lang.Runtime.loadLibrary0(Runtime.java:1016)
        at java.lang.System.loadLibrary(System.java:1669)
        at com.kyhsgeekcode.disassembler.MainActivity.<clinit>(MainActivity.java:169)
        at java.lang.Class.newInstance(Native Method)

我尝试在文件夹中添加jniLibs目录并添加libcapstone.so.5，但构建的APK仍然不包含libcapstone.so.(5)和同样的错误发生了。

我应该如何编辑我的 CMakeList.txt 以将自定义预构建库正确地 link 为主共享库？(native-lib.so)

Answer 1

我将 CMakeLists.txt 更改为 link 作为静态库的顶点。

# Sets the minimum version of CMake required to build your native library.
# This ensures that a certain set of CMake features is available to
# your build.

cmake_minimum_required(VERSION 3.4.1)

# Specifies a library name, specifies whether the library is STATIC or
# SHARED, and provides relative paths to the source code. You can
# define multiple libraries by adding multiple add.library() commands,
# and CMake builds them for you. When you build your app, Gradle
# automatically packages shared libraries with your APK.

add_library( # Specifies the name of the library.
             native-lib

             # Sets the library as a shared library.
             SHARED

             # Provides a relative path to your source file(s).
             src/main/cpp/native-lib.cpp )

find_library( # Defines the name of the path variable that stores the
              # location of the NDK library.
              log-lib

              # Specifies the name of the NDK library that
              # CMake needs to locate.
              log )

# Links your native library against one or more other native libraries.
#target_link_libraries( # Specifies the target library.
#                       native-lib
#
#                      # Links the log library to the target library.
#                       ${log-lib} )

#add_library( capstone
#        SHARED
#        IMPORTED )

#set_target_properties( # Specifies the target library.
#        capstone
#
#        # Specifies the parameter you want to define.
#        PROPERTIES IMPORTED_LOCATION#
#
#        # Provides the path to the library you want to import.
#        C:/Users/82102/AndroidStudioProjects/Android-Disassembler/capstone/${ANDROID_ABI}/libcapstone. )

target_link_libraries( native-lib C:/Users/82102/AndroidStudioProjects/Android-Disassembler/capstone/${ANDROID_ABI}/libcapstone.a ${log-lib} ) #app-glue


include_directories( capstone/include/ )

希望成功了！

Android studio CMake 不会 link 预建库到主 .so 文件

Android studio CMake does not link the prebuilt library to the main .so file

c++

android

cmake

shared-libraries

android-ndk