问题描述 {#问题描述}

Android项目NDK编译时报错：ld: error: undefined symbol: std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> >::~basic_string()

具体报错信息如下所示：

|------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | make: Leaving directory 'D:/MyWork/android/libAPI/src/main' make: *** Waiting for unfinished jobs.... ld: error: undefined symbol: std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> >::~basic_string() >>> referenced by API.cpp:0 (jni/API.cpp:0) >>> ./obj/local/x86/objs-debug/API/API.o:(_GLOBAL__sub_I_API.cpp) clang++: error: linker command failed with exit code 1 (use -v to see invocation) make: *** [D:/MyDevEnv/Android-SDK/ndk/25.1.8937393/build/../build/core/build-binary.mk:657: obj/local/x86/libAPI.so] Error 1 make: Entering directory 'D:/MyWork/android/libAPI/src/main' [x86] SharedLibrary : libAPI.so make: Leaving directory 'D:/MyWork/android/libAPI/src/main' make: Entering directory 'D:/MyWork/android/libAPI/src/main' ld: error: undefined symbol: std::__ndk1::basic_string<char, std::__ndk1::char_traits<char>, std::__ndk1::allocator<char> >::~basic_string() >>> referenced by API.cpp:0 (jni/API.cpp:0) >>> ./obj/local/arm64-v8a/objs-debug/API/API.o:(_GLOBAL__sub_I_API.cpp) >>> referenced by API.cpp:0 (jni/API.cpp:0) >>> ./obj/local/arm64-v8a/objs-debug/API/API.o:(_GLOBAL__sub_I_API.cpp) clang++: error: linker command failed with exit code 1 (use -v to see invocation) make: *** [D:/MyDevEnv/Android-SDK/ndk/25.1.8937393/build/../build/core/build-binary.mk:657: obj/local/arm64-v8a/libAPI.so] Error 1 [arm64-v8a] SharedLibrary : libAPI.so make: Leaving directory 'D:/MyWork/android/libAPI/src/main' > Task :libAPI:ndkBuild FAILED Execution failed for task ':libAPI:ndkBuild'. > Process 'command 'D:\MyDevEnv\Android-SDK\ndk\25.1.8937393/ndk-build.cmd'' finished with non-zero exit value 2 * Try: > Run with --stacktrace option to get the stack trace. > Run with --info or --debug option to get more log output. > Run with --scan to get full insights. |

问题分析 {#问题分析}

引入so动态库的时候，会出现上图的错误，所以编译库的时候需要指定：APP_STL := c++_shared

解决方法 {#解决方法}

在Application.mk中增加如下所示的配置：

|-----------|-------------------------------| | 1 | APP_STL := c++_shared |

编译完成后会生成两个文件，其中一个为libc++_shared.so，另外一个为业务库文件，两个文件都需要拷贝。