5. 交叉编译Qt库(Qt6) |
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5. 交叉编译Qt库(Qt6)¶
相对于Qt5，QT6进行了一些更广泛的架构更改，如 利用 C++17、 下一代的QML 、 Qt Quick统一的 2D 和 3D、 使用CMake 构建 等等， 更多的更改参考下 这里 。 本章将介绍下使用cmake交叉编译下Qt6，然后在鲁班猫板卡上部署测试。 提示 Qt交叉编译的默认环境：鲁班猫板卡系统Debian10、PC虚拟机系统ubuntu20.04、交叉编译GCC是8.3.0、Qt源码版本6.2.4。 5.1. 配置环境¶1、ubunut20.04环境配置： # 安装相关库和工具等 sudo apt update sudo apt install libssl-dev gperf pkg-config git bison ninja-build sudo apt install make build-essential libclang-dev \ libfontconfig1-dev libfreetype6-dev libx11-dev libx11-xcb-dev \ libxext-dev libxfixes-dev libxi-dev libxrender-dev libxcb1-dev libxcb-glx0-dev \ libxcb-keysyms1-dev libxcb-image0-dev libxcb-shm0-dev libxcb-icccm4-dev libxcb-sync-dev \ libxcb-xfixes0-dev libxcb-shape0-dev libxcb-randr0-dev libxcb-render-util0-dev \ libxcb-util-dev libxcb-xinerama0-dev libxcb-xkb-dev libxkbcommon-dev libxkbcommon-x11-dev \ libatspi2.0-dev libgl1-mesa-dev libglu1-mesa-dev freeglut3-dev获取交叉编译器： # 使用aarch64-linux-gnu 8.3.0交叉编译器 wget https://armkeil.blob.core.windows.net/developer/Files/downloads/gnu-a/8.3-2019.03/binrel/gcc-arm-8.3-2019.03-x86_64-aarch64-linux-gnu.tar.xz # 解压文件，到一个目录下 tar -xf gcc-arm-8.3-2019.03-x86_64-aarch64-linux-gnu.tar.xz2、鲁班猫板卡上环境安装(测试系统是Debian10 带桌面)： # 安装一些库和工具等,按自己需要安装 sudo apt update # x11相关 sudo apt-get install -y libx11-dev freetds-dev libsqlite0-dev libpq-dev libiodbc2-dev firebird-dev \ libxcb1 libxcb1-dev libx11-xcb1 libx11-xcb-dev \ libxcb-keysyms1 libxcb-keysyms1-dev libxcb-image0 libxcb-image0-dev libxcb-shm0 libxcb-shm0-dev \ libxcb-icccm4 libxcb-icccm4-dev libxcb-sync1 libxcb-sync-dev libxcb-render-util0 \ libxcb-render-util0-dev libxcb-xfixes0-dev libxrender-dev libxcb-shape0-dev libxcb-randr0-dev \ libxcb-glx0-dev libxi-dev libdrm-dev libxcb-xinerama0 libxcb-xinerama0-dev libatspi2.0-dev \ libxcursor-dev libxcomposite-dev libxdamage-dev libxss-dev libxtst-dev libpci-dev libcap-dev \ libxrandr-dev libdirectfb-dev libaudio-dev libxkbcommon-x11-dev # gst 1.0相关 sudo apt-get install -y libgstreamer1.0-0 gstreamer1.0-plugins-base \ gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly \ gstreamer1.0-libav gstreamer1.0-doc gstreamer1.0-tools libunwind-dev # 其他等等 sudo apt-get install -y libfreetype6-dev libicu-dev libsqlite3-dev libasound2-dev libnss3-dev \ libxss-dev libxtst-dev libpci-dev libcap-dev libsrtp0-dev libxrandr-dev libdirectfb-dev libaudio-dev \ libavcodec-dev libavformat-dev libswscale-dev libts-dev libfontconfig1-dev sudo apt-get install -y libssl-dev libdbus-1-dev libglib2-dev libegl1-mesa-dev \ libgbm-dev libgles2-mesa-dev libgles2-mesa rsyslog libjpeg-dev3、ubuntu20.04上建立sysroot目录（使用rsync命令）： # 在虚拟机上,创建sysroot目录 mkdir -p ~/sysroot/usr mkdir -p ~/sysroot/lib cd ~ rsync -avz --rsync-path="sudo rsync" --delete [email protected]:/lib sysroot rsync -avz --rsync-path="sudo rsync" --delete [email protected]:/usr/include sysroot/usr rsync -avz --rsync-path="sudo rsync" --delete [email protected]:/usr/lib sysroot/usr # 也可以直接复制我们提供的文件到类似目录下 5.2. 安装CMake¶Qt6主要推荐使用CMake来构建工程，qmake也是支持，但不是主要支持工具。交叉编译需要3.16版本以上的cmake（ubuntu20.04默认安装3.16）， 我们这安装最新的CMake，需要简单拉取源码构建安装下： git clone https://github.com/Kitware/CMake.git cd CMake ./bootstrap make && sudo make install安装成功查看安装的CMake: # 这里测试安装的是3.26版本 llh@llh-VirtualBox:~$ cmake --version cmake version 3.26.20230328-gf4b8176 CMake suite maintained and supported by Kitware (kitware.com/cmake). 5.3. 编译主机Qt6¶交叉编译Qt6时，需要主机Qt6的安装路径，交叉编译时使用 -DQT_HOST_PATH 指定，需要注意Qt6的版本应该一致，这里就单独编译下主机Qt6。 获取Qt6源码（6.2.4版本）： mkdir ~/qt && cd qt wget https://download.qt.io/archive/qt/6.2/6.2.4/single/qt-everywhere-src-6.2.4.tar.xz # 在qt目录下创建一个安装目录qt6Host和一个构建目录qt6HostBuild # 解压前面获取的压缩包到构建目录下 mkdir qt6Host mkdir qt6HostBuild && cd qt6HostBuild tar -xvf ../qt-everywhere-src-6.2.4.tar.xz提示 国内下载Qt6源码可能很慢，可以去镜像网站：https://mirrors.tuna.tsinghua.edu.cn/qt/archive/qt/6.2/ 手动下载。 配置测试Qt： cmake -GNinja -DCMAKE_BUILD_TYPE=RelWithDebInfo -DINPUT_opengl=es2 -DQT_BUILD_EXAMPLES=OFF -DQT_BUILD_TESTS=OFF -DCMAKE_INSTALL_PREFIX=/home/llh/qt/qt6Host正常输出： #..............前面省略...................# libxml2 and libxslt .................. yes lcms2 ................................ no png .................................. yes jpeg ................................. yes harfbuzz ............................. no freetype ............................. yes libpci ............................... no Note: Hunspell disabled. Spelling correction will not be available. WARNING: QtWebEngine won't be built. Could not find all necessary libraries for qpa-xcb support. X11:YES LIBDRM:YES XCOMPOSITE:NO XCURSOR:NO XRANDR:NO XI:YES XPROTO:YES XSHMFENCE:NO XTST:YES Qt is now configured for building. Just run 'cmake --build . --parallel' Once everything is built, you must run 'cmake --install .' Qt will be installed into '/home/llh/qt/qt6Host' To configure and build other Qt modules, you can use the following convenience script: /home/llh/qt/qt6Host/bin/qt-configure-module If reconfiguration fails for some reason, try to remove 'CMakeCache.txt' from the build directory -- Configuring done (90.5s) -- Generating done (3.2s) -- Build files have been written to: /home/llh/qt/qt6hostbuild/qt-everywhere-src-6.2.4可能有些库检测没有，看自己使用情况安装相关库。 编译安装Qt： cmake --build . --parallel 4 cmake --install .编译完成后，会下载文件到/home/llh/qt/qt6Host目录中，具体根据前面配置的-DCMAKE_INSTALL_PREFIX目录。 5.4. 交叉编译Qt6¶创建cmake toolcain文件 使用cmake交叉编译Qt，需要一个toolcain.cmake文件，在文件中指定编译器路径，sysroot路径，编译链接参数等。 示例创建一个配置文件lubancat_toolchain.cmake： lubancat_toolchain.cmake¶ 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 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59# 这里设置cmake支持的最小版本 cmake_minimum_required(VERSION 3.18) include_guard(GLOBAL) set(CMAKE_SYSTEM_NAME Linux) set(CMAKE_SYSTEM_PROCESSOR arm) # 指定sysroot目录 set(TARGET_SYSROOT /home/llh/sysroot) # 指定前面获取的交叉编译器路径 set(CROSS_COMPILER /opt/gcc-aarch64-linux-gnu-8.3.0/bin/aarch64-linux-gnu) set(CMAKE_SYSROOT ${TARGET_SYSROOT}) set(CMAKE_C_COMPILER ${CROSS_COMPILER}-gcc) set(CMAKE_CXX_COMPILER ${CROSS_COMPILER}-g++) set(CMAKE_LIBRARY_ARCHITECTURE aarch64-linux-gnu) # 库路径 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC -Wl,-rpath-link,${CMAKE_SYSROOT}/lib/${CMAKE_LIBRARY_ARCHITECTURE} -fPIC -Wl,-rpath-link,${CMAKE_SYSROOT}/usr/lib/${CMAKE_LIBRARY_ARCHITECTURE} -L${CMAKE_SYSROOT}/lib -L${CMAKE_SYSROOT}/lib/${CMAKE_LIBRARY_ARCHITECTURE} -L${CMAKE_SYSROOT}/usr/lib/${CMAKE_LIBRARY_ARCHITECTURE} -L${CMAKE_SYSROOT}/usr/lib -I${TARGET_SYSROOT}/usr/include -I${TARGET_SYSROOT}/usr/include/${CMAKE_LIBRARY_ARCHITECTURE}") set(CMAKE_CXX_FLAGS "${CMAKE_C_FLAGS}") # pkg config路径 set(ENV{PKG_CONFIG_PATH} ${TARGET_SYSROOT}/usr/lib/pkgconfig:${TARGET_SYSROOT}/usr/lib/${CMAKE_LIBRARY_ARCHITECTURE}/pkgconfig:${TARGET_SYSROOT}/usr/share/pkgconfig/) set(ENV{PKG_CONFIG_LIBDIR} ${TARGET_SYSROOT}/usr/lib/pkgconfig:${TARGET_SYSROOT}/usr/lib/${CMAKE_LIBRARY_ARCHITECTURE}/pkgconfig:${TARGET_SYSROOT}/usr/share/pkgconfig/) set(ENV{PKG_CONFIG_SYSROOT_DIR} ${CMAKE_SYSROOT}) set(QT_COMPILER_FLAGS "-march=armv8-a") set(QT_COMPILER_FLAGS_RELEASE "-O2 -pipe") set(QT_LINKER_FLAGS "-Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed -Wl,-fuse-ld=gold -ldbus-1") set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY) include(CMakeInitializeConfigs) function(cmake_initialize_per_config_variable _PREFIX _DOCSTRING) if (_PREFIX MATCHES "CMAKE_(C|CXX|ASM)_FLAGS") set(CMAKE_${CMAKE_MATCH_1}_FLAGS_INIT "${QT_COMPILER_FLAGS}") foreach (config DEBUG RELEASE MINSIZEREL RELWITHDEBINFO) if (DEFINED QT_COMPILER_FLAGS_${config}) set(CMAKE_${CMAKE_MATCH_1}_FLAGS_${config}_INIT "${QT_COMPILER_FLAGS_${config}}") endif() endforeach() endif() if (_PREFIX MATCHES "CMAKE_(SHARED|MODULE|EXE)_LINKER_FLAGS") foreach (config SHARED MODULE EXE) set(CMAKE_${config}_LINKER_FLAGS_INIT "${QT_LINKER_FLAGS}") endforeach() endif() _cmake_initialize_per_config_variable(${ARGV}) endfunction()创建lubancat设备文件 创建一个配置文件，在qtbase/mkspecs/devices/目录下新建一个配置文件，具体参考下前面Qt5编译。添加好配置文件，也可以使用configure编译，教程使用cmake方式编译。 qtbase/mkspecs/devices/linux-lubancat-g++/qmake.conf¶ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21# # qmake configuration for the LubanCat running Linux for debian10 # include(../common/linux_device_pre.conf) QMAKE_LIBS_EGL += -lEGL -lmali QMAKE_LIBS_OPENGL_ES2 += -lGLESv2 -lEGL -lmali QMAKE_CFLAGS = -march=armv8-a QMAKE_CXXFLAGS = $$QMAKE_CFLAGS QMAKE_LFLAGS += -static-libstdc++ QMAKE_INCDIR_POST += $$[QT_SYSROOT]/usr/include $$[QT_SYSROOT]/usr/include/aarch64-linux-gnu/ QMAKE_LIBDIR_POST += $$[QT_SYSROOT]/usr/lib $$[QT_SYSROOT]/lib/$${GCC_MACHINE_DUMP} $$[QT_SYSROOT]/usr/lib/$${GCC_MACHINE_DUMP} QMAKE_RPATHLINKDIR_POST += $$[QT_SYSROOT]/usr/lib $$[QT_SYSROOT]/usr/lib/$${GCC_MACHINE_DUMP} $$[QT_SYSROOT]/lib/$${GCC_MACHINE_DUMP} DISTRO_OPTS += aarch64 DISTRO_OPTS += deb-multi-arch include(../common/linux_arm_device_post.conf) load(qt_config)编译配置 #创建目录，解压前面获取的源码 mkdir -p ~/qt/qt6-cross cd ~/qt/qt6-cross/ tar -xf ../qt-everywhere-src-6.2.4.tar.xz #创建构建目录 mkdir build && cd build # 编译配置 cmake ../qt-everywhere-src-6.2.4/ -GNinja -DCMAKE_BUILD_TYPE=Release -DINPUT_opengl=es2 \ -DQT_BUILD_EXAMPLES=OFF -DQT_BUILD_TESTS=OFF -DQT_HOST_PATH=$HOME/qt/qt6Host -DCMAKE_STAGING_PREFIX=$HOME/sysroot/opt/prefix \ -DCMAKE_INSTALL_PREFIX=$HOME/sysroot/opt/prefix -DCMAKE_TOOLCHAIN_FILE=$HOME/qt/lubancat_toolchain.cmake \ -DQT_QMAKE_TARGET_MKSPEC=devices/linux-lubancat-g++ -DQT_FEATURE_xcb=ON -DFEATURE_xcb_xlib=ON \ -DQT_FEATURE_xlib=ON -DFEATURE_qtwebengine_build=OFF正常配置输出： Configure summary: Building for: linux-g++ (arm64, CPU features: neon) Compiler: gcc 8.3.0 Build options: Mode ................................... release Optimize release build for size ........ no Fully optimize release builds (-O3) .... no Building shared libraries .............. yes Using C standard ....................... C11 Using C++ standard ..................... C++17 Using ccache ........................... no Using new DTAGS ........................ yes Relocatable ............................ yes Using precompiled headers .............. yes Using LTCG ............................. no Target compiler supports: Intrinsics without compiler architecture option yes Extensions ........................... NEON Sanitizers: Addresses ............................ no Threads .............................. no Memory ............................... no Fuzzer (instrumentation only) ........ no Undefined ............................ no Build parts ............................ libs Qt modules and options: Qt Concurrent .......................... yes Qt D-Bus ............................... yes Qt D-Bus directly linked to libdbus .... yes Qt Gui ................................. yes Qt Network ............................. yes Qt PrintSupport ........................ yes Qt Sql ................................. yes Qt Testlib ............................. yes Qt Widgets ............................. yes Qt Xml ................................. yes Support enabled for: Using pkg-config ....................... yes udev ................................... yes Using system zlib ...................... yes Zstandard support ...................... yes Thread support ......................... yes Common build options: Linker can resolve circular dependencies yes Qt Core: backtrace .............................. yes DoubleConversion ....................... yes Using system DoubleConversion ........ yes GLib ................................... yes ICU .................................... yes Using system libb2 ..................... no Built-in copy of the MIME database ..... yes cpp/winrt base ......................... no Tracing backend ........................ Logging backends: journald ............................. no syslog ............................... no slog2 ................................ no PCRE2 .................................. yes Using system PCRE2 ................... yes CLONE_PIDFD support in forkfd .......... yes Qt Sql: SQL item models ........................ yes Qt Network: getifaddrs() ........................... yes IPv6 ifname ............................ yes libproxy ............................... no Linux AF_NETLINK ....................... yes OpenSSL ................................ yes Qt directly linked to OpenSSL ........ no OpenSSL 1.1 ............................ yes DTLS ................................... yes OCSP-stapling .......................... yes SCTP ................................... no Use system proxies ..................... yes GSSAPI ................................. yes Brotli Decompression Support ........... yes Qt Gui: Accessibility .......................... yes FreeType ............................... yes Using system FreeType ................ yes HarfBuzz ............................... yes Using system HarfBuzz ................ no Fontconfig ............................. yes Image formats: GIF .................................. yes ICO .................................. yes JPEG ................................. yes Using system libjpeg ............... yes PNG .................................. yes Using system libpng ................ yes Text formats: HtmlParser ........................... yes CssParser ............................ yes OdfWriter ............................ yes MarkdownReader ....................... yes Using system libmd4c ............... no MarkdownWriter ....................... yes EGL .................................... yes OpenVG ................................. no OpenGL: Desktop OpenGL ....................... no OpenGL ES 2.0 ........................ yes OpenGL ES 3.0 ........................ yes OpenGL ES 3.1 ........................ yes OpenGL ES 3.2 ........................ yes Vulkan ................................. yes Session Management ..................... yes Features used by QPA backends: evdev .................................. yes libinput ............................... yes INTEGRITY HID .......................... no mtdev .................................. yes tslib .................................. yes xkbcommon .............................. yes X11 specific: xlib ................................. yes XCB Xlib ............................. yes EGL on X11 ........................... yes xkbcommon-x11 ........................ yes xcb-sm ............................... yes QPA backends: DirectFB ............................... no EGLFS .................................. yes EGLFS details: EGLFS OpenWFD ........................ no EGLFS i.Mx6 .......................... no EGLFS i.Mx6 Wayland .................. no EGLFS RCAR ........................... no eglfs_egldevice ...................... yes eglfs_gbm ............................ yes EGLFS VSP2 ........................... no EGLFS Mali ........................... yes EGLFS Raspberry Pi ................... no EGLFS X11 ............................ yes LinuxFB ................................ yes VNC .................................... yes VK_KHR_display ......................... yes QNX: lgmon ................................ no IMF .................................. no XCB: Using system-provided xcb-xinput ..... no GL integrations: GLX Plugin ......................... no XCB GLX .......................... no EGL-X11 Plugin ..................... yes #..............中间省略....................# minizip .............................. no libevent ............................. no libxml2 and libxslt .................. yes lcms2 ................................ no png .................................. yes jpeg ................................. yes harfbuzz ............................. no freetype ............................. yes libpci ............................... yes Note: Hunspell disabled. Spelling correction will not be available. WARNING: QDoc will not be compiled, probably because libclang could not be located. This means that you cannot build the Qt documentation. Either set CMAKE_PREFIX_PATH or LLVM_INSTALL_DIR to the location of your llvm installation. On Linux systems, you may be able to install libclang by installing the libclang-dev or libclang-devel package, depending on your distribution. On macOS, you can use Homebrew's llvm package. You will also need to set the FEATURE_clang CMake variable to ON to re-evaluate this check. WARNING: Clang-based lupdate parser will not be available. LLVM and Clang C++ libraries have not been found. You will need to set the FEATURE_clangcpp CMake variable to ON to re-evaluate this check. Qt is now configured for building. Just run 'cmake --build . --parallel' Once everything is built, you must run 'cmake --install .' Qt will be installed into '/home/llh/sysroot/opt' To configure and build other Qt modules, you can use the following convenience script: /home/llh/sysroot/opt/prefix/bin/qt-configure-module If reconfiguration fails for some reason, try to remove 'CMakeCache.txt' from the build directory -- Configuring done (106.7s) -- Generating done (3.1s) -- Build files have been written to: /home/llh/qt/qt6-cross/build命令中配置 -DQT_HOST_PATH=$HOME/qt/qt6Host 该目录是前面编译主机Qt6的安装目录， -DCMAKE_TOOLCHAIN_FILE 是目标的Cmake toolcain文件，需要根据自己实际目录修改。 我们命令中配置 -DINPUT_opengl=es2 ,开启了opengl es，在config.summary主要关注EGLFS系列是否yes。如果是no，一般会提示 You might need to modify the include and library search paths by editing QMAKE_INCDIR_OPENGL[_ES2] ..., 这个时候去看构建目录下CMakeFiles/CMakeConfigureLog文件，查看具体的报错（可能是找不到库或者其他问题）。 命令中默认关闭了qtwebengine的编译，通过设置 -DFEATURE_qtwebengine_build=OFF。 另外，除了使用cmake编译，也支持使用configure进行编译。 交叉编译Qt6源码 在编译配置检测后，执行下面命令编译安装Qt： # 编译 cmake --build . --parallel 4 # 安装 cmake --install .安装完成后，会在安装目录下生成文件： llh@llh-VirtualBox:~/sysroot/opt/prefix$ ls bin include libexec modules plugins translations doc lib mkspecs phrasebooks qml具体下载安装目录，根据前面配置的-DCMAKE_INSTALL_PREFIX。 5.5. 部署测试¶同步文件到鲁班猫板卡（这是用rsync）： rsync -avz --rsync-path="sudo rsync" ~/sysroot/opt/prefix [email protected]:/opt提示 rsync命令中是 ~/sysroot/opt/prefix,表示同步prefix文件夹到板卡的/opt,如果是 ~/sysroot/opt/prefix/,将会同步prefix文件夹下的文件到板卡的/opt。 这里测试直接用命令行，使用Qt Creator需要自己配置下编译套件（kits），可以参考下前面章节。 进入解压的qt-everywhere-src-6.2.4.tar.xz目录，复制qtbase/examples/opengl/hellogl2例程到一个新的目录下，这是一个opengl例程： # 创建一个qt6测试目录 cd ~ mkdir qt6_test && cd qt6_test # 根据自己实际目录 cp -a ~/qt/qt6-cross/qt-everywhere-src-6.2.4/qtbase/examples/opengl/hellogl2 . cd hellogl2 # 打开CMakeLists.txt，设置下库路径和交叉编译器路径（根据自己实际目录设置）等，添加下面语句： set(TARGET_SYSROOT /home/llh/sysroot) set(CROSS_COMPILER /opt/gcc-aarch64-linux-gnu-8.3.0/bin/aarch64-linux-gnu) set(CMAKE_SYSROOT ${TARGET_SYSROOT}) set(CMAKE_C_COMPILER ${CROSS_COMPILER}-gcc) set(CMAKE_CXX_COMPILER ${CROSS_COMPILER}-g++) set(CMAKE_LIBRARY_ARCHITECTURE aarch64-linux-gnu) set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC -Wl,-rpath-link,${CMAKE_SYSROOT}/lib/${CMAKE_LIBRARY_ARCHITECTURE} -fPIC -Wl,-rpath-link,${CMAKE_SYSROOT}/usr/lib/${CMAKE_LIBRARY_ARCHITECTURE} -L${CMAKE_SYSROOT}/lib -L${CMAKE_SYSROOT}/lib/${CMAKE_LIBRARY_ARCHITECTURE} -L${CMAKE_SYSROOT}/usr/lib/${CMAKE_LIBRARY_ARCHITECTURE} -L${CMAKE_SYSROOT}/usr/lib -I${TARGET_SYSROOT}/usr/include -I${TARGET_SYSROOT}/usr/include/${CMAKE_LIBRARY_ARCHITECTURE}") set(CMAKE_CXX_FLAGS "${CMAKE_C_FLAGS}") # 编译配置，使用我们前面交叉编译出的qt-cmake工具,工具目录根据自己实际安装目录，在hellogl2目录下执行： /home/llh/sysroot/opt/prefix/bin/qt-cmake . # 输出 -- The CXX compiler identification is GNU 8.3.0 -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Check for working CXX compiler: /opt/gcc-aarch64-linux-gnu-8.3.0/bin/aarch64-linux-gnu-g++ - skipped -- Detecting CXX compile features -- Detecting CXX compile features - done -- Performing Test CMAKE_HAVE_LIBC_PTHREAD -- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Failed -- Check if compiler accepts -pthread -- Check if compiler accepts -pthread - yes -- Found Threads: TRUE -- Performing Test HAVE_STDATOMIC -- Performing Test HAVE_STDATOMIC - Success -- Found WrapAtomic: TRUE -- Performing Test HAVE_EGL -- Performing Test HAVE_EGL - Success -- Found EGL: /home/llh/sysroot/usr/include (found version "1.5") -- Performing Test HAVE_GLESv2 -- Performing Test HAVE_GLESv2 - Success -- Found GLESv2: /home/llh/sysroot/usr/include -- Found XKB: /home/llh/sysroot/usr/lib/aarch64-linux-gnu/libxkbcommon.so (found suitable version "0.8.2", minimum required is "0.5.0") -- Found WrapVulkanHeaders: /home/llh/sysroot/usr/include -- Configuring done (2.8s) -- Generating done (0.0s) -- Build files have been written to: /home/llh/qt6_test/hellogl2 # 然后编译执行命令： cmake --build . # 输出： [ 12%] Automatic MOC and UIC for target hellogl2 [ 12%] Built target hellogl2_autogen [ 25%] Building CXX object CMakeFiles/hellogl2.dir/hellogl2_autogen/mocs_compilation.cpp.o [ 37%] Building CXX object CMakeFiles/hellogl2.dir/glwidget.cpp.o [ 50%] Building CXX object CMakeFiles/hellogl2.dir/logo.cpp.o [ 62%] Building CXX object CMakeFiles/hellogl2.dir/main.cpp.o [ 75%] Building CXX object CMakeFiles/hellogl2.dir/mainwindow.cpp.o [ 87%] Building CXX object CMakeFiles/hellogl2.dir/window.cpp.o [100%] Linking CXX executable hellogl2 [100%] Built target hellogl2 # 查看生成的可执行文件： file hellogl2 hellogl2: ELF 64-bit LSB executable, ARM aarch64, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-aarch64.so.1, for GNU/Linux 3.7.0, not stripped复制可执行文件到鲁班猫板卡： scp hellogl2 [email protected]:/home/cat在鲁班猫板卡上，这里简单测试，导出下库环境，然后执行程序（详细板卡环境配置参考下后面 部署章节）： cat@lubancat:~$ export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/prefix/lib # 查看可执行文件链接库 cat@lubancat:~$ ldd hellogl2 linux-vdso.so.1 (0x0000007f93118000) libQt6OpenGLWidgets.so.6 => /opt/prefix/lib/libQt6OpenGLWidgets.so.6 (0x0000007f930c9000) libQt6OpenGL.so.6 => /opt/prefix/lib/libQt6OpenGL.so.6 (0x0000007f93036000) libQt6Widgets.so.6 => /opt/prefix/lib/libQt6Widgets.so.6 (0x0000007f928f9000) libQt6Gui.so.6 => /opt/prefix/lib/libQt6Gui.so.6 (0x0000007f92033000) libQt6Core.so.6 => /opt/prefix/lib/libQt6Core.so.6 (0x0000007f91a82000) libstdc++.so.6 => /usr/lib/aarch64-linux-gnu/libstdc++.so.6 (0x0000007f918cc000) libm.so.6 => /lib/aarch64-linux-gnu/libm.so.6 (0x0000007f9180f000) libgcc_s.so.1 => /lib/aarch64-linux-gnu/libgcc_s.so.1 (0x0000007f917eb000) libc.so.6 => /lib/aarch64-linux-gnu/libc.so.6 (0x0000007f9167a000) libGLESv2.so.2 => /usr/lib/aarch64-linux-gnu/mali/libGLESv2.so.2 (0x0000007f91668000) ...... # 后面省略 # 执行程序，这里是测试使用xcb，交叉编译qt时也默认编译了eglfs fb等插件 cat@lubancat:~$ ./hellogl2 -platform xcb 5.6. 参考链接¶https://blog.csdn.net/Qt_China/article/details/120683547 https://wiki.qt.io/Cross-Compile_Qt_6_for_Raspberry_Pi#Further_Readings |
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