Question

我正在使用供应商交叉编译器gcc-4.4.4-glibc-2.11.1-multilib-1.0/arm-fsl-linux-gnueabi交叉编译QT，并在make期间收到以下错误。

有谁知道这可能与什么有关？

看起来有些软件包已经用另一个编译器编译，现在有错过匹配？我在这一点上写过吗？

我该如何解决这个问题？

/opt/freescale/usr/local/gcc-4.4.4-glibc-2.11.1-multilib-1.0/arm-fsl-linux-gnueabi/bin/arm-fsl-linux-gnueabi-g++ -Wl,-rpath-link,/mnt/freescale/ltib_10.04_gtt/ltib/rootfs/usr/lib -Wl,-O1 -Wl,-rpath,/opt/qt5/lib -o ../../bin/qmlbundle .obj/main.o   -L/mnt/freescale/ltib_10.04_gtt/ltib/rootfs/usr/lib -L/home/user/Downloads/qt5/qtdeclarative/lib -lQt5Qml -L/home/user/Downloads/qt5/qtbase/lib -lQt5Network -lQt5Core -lpthread 

.obj/main.o: In function `showHelp()':
main.cpp:(.text+0x2e0): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::__ostream_insert<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*, int)'
main.cpp:(.text+0x310): undefined reference to `std::ctype<char>::_M_widen_init() const'
main.cpp:(.text+0x368): undefined reference to `std::ctype<char>::_M_widen_init() const'
main.cpp:(.text+0x3a0): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::__ostream_insert<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*, int)'
main.cpp:(.text+0x3d0): undefined reference to `std::ctype<char>::_M_widen_init() const'
main.cpp:(.text+0x408): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::__ostream_insert<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*, int)'
main.cpp:(.text+0x438): undefined reference to `std::ctype<char>::_M_widen_init() const'
main.cpp:(.text+0x470): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::__ostream_insert<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*, int)'
main.cpp:(.text+0x4a0): undefined reference to `std::ctype<char>::_M_widen_init() const'
main.cpp:(.text+0x4d8): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::__ostream_insert<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*, int)'
main.cpp:(.text+0x508): undefined reference to `std::ctype<char>::_M_widen_init() const'
main.cpp:(.text+0x540): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::__ostream_insert<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*, int)'
main.cpp:(.text+0x570): undefined reference to `std::ctype<char>::_M_widen_init() const'
main.cpp:(.text+0x5a8): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::__ostream_insert<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*, int)'
main.cpp:(.text+0x5d8): undefined reference to `std::ctype<char>::_M_widen_init() const'
main.cpp:(.text+0x610): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::__ostream_insert<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*, int)'
main.cpp:(.text+0x640): undefined reference to `std::ctype<char>::_M_widen_init() const'
main.cpp:(.text+0x678): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::__ostream_insert<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*, int)'
main.cpp:(.text+0x6a8): undefined reference to `std::ctype<char>::_M_widen_init() const'
main.cpp:(.text+0x700): undefined reference to `std::ctype<char>::_M_widen_init() const'
main.cpp:(.text+0x738): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::__ostream_insert<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*, int)'
main.cpp:(.text+0x768): undefined reference to `std::ctype<char>::_M_widen_init() const'
.obj/main.o: In function `usage(QString const&, QString const&)':
main.cpp:(.text+0x834): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::__ostream_insert<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*, int)'
main.cpp:(.text+0x868): undefined reference to `std::ctype<char>::_M_widen_init() const'
main.cpp:(.text+0x8c0): undefined reference to `std::ctype<char>::_M_widen_init() const'
main.cpp:(.text+0xa78): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::__ostream_insert<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*, int)'
main.cpp:(.text+0xaa8): undefined reference to `std::ctype<char>::_M_widen_init() const'
.obj/main.o: In function `main':
main.cpp:(.text+0x1ebc): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::__ostream_insert<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*, int)'
main.cpp:(.text+0x1ef4): undefined reference to `std::ctype<char>::_M_widen_init() const'
collect2: ld returned 1 exit status
make[3]: *** [../../bin/qmlbundle] Error 1

我认为这不重要，但如果有人想知道我正在为飞思卡尔iMX51（Cortex-A8）构建QT 5.2.0。

这就是我在make之前配置QT 5.2.0的方式：

./configure -v -opensource -confirm-license -opengl es2 -make libs -device imx5 \
-nomake examples -nomake tests \
-skip qtsvg -skip qtdeclarative -skip qtwebkit -skip qtconnectivity -skip qtmultimedia -skip qtlocation -skip qtactiveqt -qt-freetype -no-openssl -no-nis -no-pch -no-dbus \
-skip qtmacextras -skip qtsensors -skip qtserialport \
-device-option CROSS_COMPILE=/opt/freescale/usr/local/gcc-4.4.4-glibc-2.11.1-multilib-1.0/arm-fsl-linux-gnueabi/bin/arm-fsl-linux-gnueabi- \
-sysroot /mnt/freescale/ltib_10.04_gtt/ltib/rootfs -no-gcc-sysroot \
-prefix /opt/qt5

实际下载了imx5的qmake.conf，其内容如下所示：

include(../common/linux_device_pre.conf)

EGLFS_PLATFORM_HOOKS_SOURCES = $$PWD/qeglfshooks_imx5.cpp

QMAKE_INCDIR           += $$[QT_SYSROOT]/usr/include
QMAKE_LIBDIR           += $$[QT_SYSROOT]/usr/lib

QMAKE_LIBS_EGL         += -lEGL
QMAKE_LIBS_OPENGL_ES2  += -lGLESv2 -lEGL
QMAKE_LIBS_OPENVG      += -lOpenVG -lEGL

QMAKE_LFLAGS           += -Wl,-rpath-link,$$[QT_SYSROOT]/usr/lib

IMX5_CFLAGS             = -march=armv7-a -mfpu=neon -D_LINUX
IMX5_CFLAGS_RELEASE     = -O2 $$IMX5_CFLAGS
QMAKE_CFLAGS_RELEASE   += $$IMX5_CFLAGS_RELEASE
QMAKE_CXXFLAGS_RELEASE += $$IMX5_CFLAGS_RELEASE
QMAKE_CFLAGS_DEBUG     += $$IMX5_CFLAGS
QMAKE_CXXFLAGS_DEBUG   += $$IMX5_CFLAGS

include(../common/linux_device_post.conf)

load(qt_config)

Answer 1

我使用gcc 4.8.0为x86_64交叉编译Qt 5.0.2。我注意到与您的构建存在一些潜在的相关差异：

在配置期间：

我没有指定-no-gcc-sysroot。
我指定-device-option TOOL_DIR=$(TOOL_DIR)，其中TOOL_DIR是工具链的顶级目录（即我的交叉g ++位于$(TOOL_DIR)/bin/）。这在我的qmake.conf中使用。
我使用-platform参数（虽然我认为这默认为linux-g++-64）。

在我的qmake.conf中：

我指定QMAKE_INCDIR = $${TOOL_DIR}/include $$[QT_SYSROOT]/usr/include
我不包含linux_device_post.conf，因为该文件的内容与我无关，除了调用deviceSanityCheckCompiler，我添加到qmake.conf。

这是我的configure命令（makefile的一部分）：

    cd $(QT_DIR) && PATH=$(QT_PATH) ./configure -v \
      -prefix $(ROOT_DIR) \
      -sysroot $(ROOT_DIR) \
      -headerdir $(TOOL_DIR)/include \
      -hostprefix $(TOOL_DIR) \
      -datadir $(TOOL_DIR) \
      -examplesdir $(TOOL_DIR) \
      -testsdir $(TOOL_DIR) \
      -platform linux-g++-64 \
      -device linux-vendorname-g++ \
      -device-option CROSS_COMPILE=$(TARGET)- \
      -device-option TOOL_DIR=$(TOOL_DIR) \
      -opensource \
      -confirm-license \
      -no-accessibility \
      -no-javascript-jit \
      -no-gui \
      -no-widgets \
      -no-gif \
      -no-libpng \
      -no-libjpeg \
      -no-openssl \
      -no-xcb \
      -no-opengl \
      -no-glib \
      -no-dbus \
      -no-cups \
      -no-pkg-config \
      -optimized-qmake \
      -reduce-relocations \
      -reduce-exports \
      -release \
      -make libs \
      -no-pch

ROOT_DIR是根fs的顶级，也是安装Qt库的地方。

QT_DIR是顶级Qt源目录（以及Qt构建发生的地方）。

QT_PATH包含$(TOOL_DIR)/bin，以确保它可以找到我的交叉编译器。

这是我的qmake.conf：

include(../common/linux_device_pre.conf)

COMPILER_FLAGS          = -mtune=core-avx-i

#modifications to gcc-base.conf
QMAKE_CFLAGS        += $$COMPILER_FLAGS
QMAKE_CXXFLAGS      += $$COMPILER_FLAGS

#QMAKE_LFLAGS        = 

QMAKE_INCDIR            = $${TOOL_DIR}/include $$[QT_SYSROOT]/usr/include

QMAKE_CXXFLAGS_CXX11 = -std=c++11

# Sanity check
deviceSanityCheckCompiler()

load(qt_config)

此外，看起来您在连接针对此版本的Qt构建的应用程序时遇到问题，而不是构建Qt本身，对吗？在这种情况下，如果你还没有，你应该调用你为你的工具链构建的qmake（它应该是一个主机可执行文件）。如果你使用cmake，当你找到'Qt时，这个qmake需要首先在路径上。

交叉编译QT

1 个答案: