我有一个带有旧libstdc ++的ARM平台。我正在从其他平台交叉编译应用程序，并且我想使用C ++语言的更高级功能，因此我要静态链接我的libstdc ++。我正在使用柯南作为软件包管理器以及许多其他动态库，并且一切运行顺利。
当我尝试添加应用程序的全新组件时出现问题，该组件是用Qt5编写的。字符串流突然停止工作-应用程序没有崩溃，但运算符<<（int）重置了流中的有效位。
可执行文件上的'objdump -TC'表明，许多libstdc ++函数现在已导入（动态链接）而不是静态链接。
示例：
0000000000000000 DF *UND* 0000000000000000 Qt_5 std::ostream::operator<<(int)
请注意版本“ Qt_5”。
我还对可执行文件进行了反汇编，以查看对std :: ostream :: operator <<（int）的所有调用确实在调用导入的符号。
当我尝试使用gp链接器之前手动解析libstdc ++符号
/usr/bin/aarch64-linux-gnu-ld -r -o out.o main.cpp.o /usr/lib/gcc-cross/aarch64-linux-gnu/7/libstdc++.a
它按预期工作，并且可执行文件中不再有与ostream相关的导入符号，并且stringstream也可以工作。
关于我的情况有什么想法吗？
下面是CLion执行的链接命令。通过这种组合，该应用程序将无法正常工作。
/usr/bin/aarch64-linux-gnu-g++-7 -fPIC -static-libstdc++ -Wall -Wextra -pedantic -Weffc++ -Wshadow -Wstrict-aliasing -Woverloaded-virtual -Wdelete-non-virtual-dtor -Wno-unused-function -Wno-missing-braces -g -rdynamic -L/enviro/rv-linux/lib-target -L/enviro/rv-linux/targetfs/lib/aarch64-linux-gnu -Wl,-rpath,$ORIGIN/lib -Wl,-rpath,/enviro/rv-linux/lib-target CMakeFiles/wwrk_core.dir/src/main.cpp.o -o bin/wwrk_core -Wl,-rpath,/usr/local/ukita-1.2/targets/aarch64-Linux/lib:/usr/local/cuda/targets/aarch64-linux/lib:/usr/local/cuda/targets/aarch64-linux/lib/stubs:/home/wwrk/.conan/data/mosquitto/1.4.15/bincrafters/stable/package/239078edbc0e8a96a9afdcfb7771317f2343a587/lib:/home/wwrk/.conan/data/OpenSSL/1.0.2o/conan/stable/package/7dd5184ee7a9467ffac8b88942d33774d1b75240/lib:/home/wwrk/.conan/data/Qt/5.11.2/bincrafters/stable/package/07bff7c90a07530ee2d9520bd150b7df4c4bcfd4/lib:/home/wwrk/.conan/data/Qt/5.11.2/bincrafters/stable/package/e7c3abf447189e454cc0dd043a04a91b61a54baf/lib:/usr/local/ukita/samples/3rdparty/linux-aarch64/special_Xlibs/lib: lib/libAnd_driver.a lib/libAndCore-dw.a /home/wwrk/.conan/data/OpenCV/3.4.0/wwrkauto/stable/package/2a79b1e5f5284318af316f0a3dad26795379cec1/lib/libopencv_dnn.a /home/wwrk/.conan/data/OpenCV/3.4.0/wwrkauto/stable/package/2a79b1e5f5284318af316f0a3dad26795379cec1/lib/libopencv_ml.a 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谢谢您的回答。
答案 0 :(得分：0)
我找到了解决我问题的方法。我需要在lib列表的顶部显式列出标准库的静态版本。这距离理想的解决方案还很遥远，但是现在垃圾箱已按我的预期构建。
if(${CMAKE_CXX_COMPILER} MATCHES ".*aarch64.*")
LIST(APPEND SAMPLE_LIBRARIES
/usr/lib/gcc-cross/aarch64-linux-gnu/7/libstdc++.a
)
endif()
...
#other libraries here