Question

我想构建一个动态链接QT-Core库的c ++程序。

为此，我使用WSL作为构建环境，并使用CLion作为我的IDE。当我在WSL（ubuntu_18.04）中编译该程序时，链接器找不到QtLibrary，但是当我在docker容器（ubuntu_18.04）中对其进行编译时，链接器会找到该库。

对此我感到很困惑，因为在我看来我已经正确设置了库搜索路径。任何人都知道这可能是什么原因造成的吗？

我的项目结构如下：

apps
- CMakeLists.txt
- main.cpp
extern
- qt-linux
src
- CMakeLists.txt
- functions.cpp
- functions.hpp
toolschains
- linux-toolchain.cmake
CMakeLists.txt
build.sh

CMakeLists.txt文件如下：

CMakeLists.txt： cmake_minimum_required（版本3.10）项目（cpp_hello_world）

set(CMAKE_CXX_STANDARD 14)
set(CMAKE_INSTALL_PREFIX ${CMAKE_CURRENT_SOURCE_DIR}/Install)
set(CMAKE_SKIP_BUILD_RPATH  FALSE)
set(CMAKE_BUILD_WITH_INSTALL_RPATH FALSE)
set(CMAKE_INSTALL_RPATH "$ORIGIN/../lib")


# QT SETUP
if(UNIX)
    set(Qt5Core_DIR "extern/qt-linux/lib/cmake/Qt5Core")
    install(DIRECTORY ${PROJECT_SOURCE_DIR}/extern/qt-linux/lib/ DESTINATION 
    lib)
endif()
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTOUIC ON)
find_package(Qt5Core)

add_subdirectory(src)
add_subdirectory(apps)

src / CMakeLists.txt：

set(CMAKE_INCLUDE_CURRENT_DIR ON)

add_library(HelloLibrary SHARED functions.hpp functions.cpp)
target_link_libraries(HelloLibrary Qt5::Core)
target_include_directories(HelloLibrary PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})


install(TARGETS HelloLibrary DESTINATION lib)
install(FILES functions.hpp DESTINATION include)

apps / CMakeLists.txt：

add_executable(hello-world main.cpp)

target_link_libraries(hello-world HelloLibrary)
target_link_libraries(hello-world -static-libgcc -static-libstdc++)
install(TARGETS hello-world DESTINATION bin)

然后使用以下build.sh脚本进行构建：

#!/bin/bash

export SOURCE_DIR=$(pwd)
rm -R build
mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_TOOLCHAIN_FILE=../toolchains/linux- 
    toolchain.cmake -G "CodeBlocks - Unix Makefiles" ${SOURCE_DIR}

make
make install

ldd输出WSL：

    linux-vdso.so.1 (0x00007ffff62d6000)
    libHelloLibrary.so => /mnt/c/Users/ci/Documents/Development/cpp-cmake-prototype/Install/bin/../lib/libHelloLibrary.so (0x00007f7c96fb0000)
    libQt5Core.so.5 => not found
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f7c96bb0000)
    /lib64/ld-linux-x86-64.so.2 (0x00007f7c97600000)
    libQt5Core.so.5 => not found
    libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f7c96820000)
    libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f7c965f0000)
    libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f7c96250000)

ldd输出Docker-Container：

    linux-vdso.so.1 (0x00007ffc6932a000)
    libHelloLibrary.so => /Install/bin/./../lib/libHelloLibrary.so (0x00007f36411db000)
    libQt5Core.so.5 => /Install/bin/./../lib/libQt5Core.so.5 (0x00007f3640c33000)
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f3640842000)
    /lib64/ld-linux-x86-64.so.2 (0x00007f3641715000)
    libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f36404b9000)
    libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f36402a1000)
    libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f3640082000)
    libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f363fe65000)
    libicui18n.so.60 => /usr/lib/x86_64-linux-gnu/libicui18n.so.60 (0x00007f363f9c4000)
    libicuuc.so.60 => /usr/lib/x86_64-linux-gnu/libicuuc.so.60 (0x00007f363f60d000)
    libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f363f409000)
    libdouble-conversion.so.1 => /usr/lib/x86_64-linux-gnu/libdouble-conversion.so.1 (0x00007f363f1f8000)
    libglib-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007f363eee2000)
    libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f363eb44000)
    libicudata.so.60 => /usr/lib/x86_64-linux-gnu/libicudata.so.60 (0x00007f363cf9b000)
    libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007f363cd29000)

Answer 1

我现在想出了这个问题在于libQt5Core.so.5是使用.note.ABI标签设置的，该标签设置为与WSL标识为（4.4）不兼容，但Docker容器兼容（4.9）的版本。

类似于这里发生的情况： https://github.com/Microsoft/WSL/issues/3023

WSL中的QT动态链接不起作用，但在docker容器中起作用

1 个答案: