背景：
我正在将一个庞大的项目移植到一个新的工具链中（从 gcc 4.7.0 迁移到 gcc 8.2.0 ，并从 boost 1.55 以提高1.68 ）。整个SDK由Yocto生成。有几种库和应用程序，都是使用cmake构建的。
问题：
所有库都可以正常构建和链接，而某些使用boost::thread的应用程序无法正确链接。举一个例子：
cmake生成的命令：
cd /home/italia.priv.org/user/workspace-mk5/git/build/apps/ConfigMngr && /opt/cmake-3.13.0-Linux-x86_64/bin/cmake -E cmake_link_script CMakeFiles / ConfigMngr。 dir / link.txt --verbose = 1 /opt/poky/2.6.2/sysroots/x86_64-pokysdk-linux/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++ --sysroot = / opt / poky / 2.6.2 / sysroots / armv7at2hf-neon-poky-linux-gnueabi --std = c ++ 11 -march = armv7-a -mthumb -mfpu = neon -mfloat-abi = hard -fpermissive -O3 -DNDEBUG -Wl，-O1- Wl，-hash-style = gnu -Wl，-根据需要CMakeFiles / ConfigMngr.dir / src / AppConfig.cpp.o CMakeFiles / ConfigMngr.dir / src / AppMain.cpp.o CMakeFiles / ConfigMngr.dir / src /AppStates.cpp.o CMakeFiles / ConfigMngr.dir / src / ConfigMngr.cpp.o CMakeFiles / ConfigMngr.dir / src / dbus_server / ConfigMngrServerApi.cpp.o -o ConfigMngr -Wl-rpath / home / italia.priv。 org / user / workspace-mk5 / git / targetfs / lib_priv / lib_arm：/opt/poky/2.6.2/sysroots/armv7at2hf-neon-poky-linux-gnueabi/usr/lib/libboost_chrono-mt.so / opt / poky /2.6.2/sysroots/armv7at2hf-neon-poky-linux-gnueabi/usr/lib/libboost_date_time-mt.so /opt/poky/2.6.2/sysroots/armv7at2hf-neon-poky-linux-gnueabi/usr/lib /libboost_filesystem-mt.so /opt/poky/2.6.2/sysroots/armv7at2hf-neon-poky-linux-gnueabi/us r / lib / libboost_system-mt.so /opt/poky/2.6.2/sysroots/armv7at2hf-neon-poky-linux-gnueabi/usr/lib/libboost_serialization-mt.so /opt/poky/2.6.2 /sysroots/armv7at2hf-neon-poky-linux-gnueabi/usr/lib/libboost_thread-mt.so /opt/poky/2.6.2/sysroots/armv7at2hf-neon-poky-linux-gnueabi/usr/lib /libboost_timer-mt.so ../../../targetfs/lib_priv/lib_arm/libxxx_autocheck.so ../../../targetfs/lib_priv/lib_arm/libxxx_config.so ../../.。 /targetfs/lib_priv/lib_arm/libxxx_dbusapi.a ../../../targetfs/lib_priv/lib_arm/libxxx_hwifc.a ../../../targetfs/lib_priv/lib_arm/libxxx_log.so ../。 ./../targetfs/lib_priv/lib_arm/libxxx_utils.so /opt/poky/2.6.2/sysroots/armv7at2hf-neon-poky-linux-gnueabi/usr/lib/libdbus-cxx.so /opt/poky/2.6 .2 / sysroots / armv7at2hf-neon-poky-linux-gnueabi / usr / lib / libsigc-2.0.so /opt/poky/2.6.2/sysroots/armv7at2hf-neon-poky-linux-gnueabi/usr/lib/libodb .so /opt/poky/2.6.2/sysroots/armv7at2hf-neon-poky-linux-gnueabi/usr/lib/libodb-sqlite.so /opt/poky/2.6.2/sysroots/armv7at2hf-neon- poky-linux-gnueabi / usr / lib / libodb-boost.so /opt/poky/2.6.2/sysroots/armv7at2hf-neon-poky-linux-gnueabi/usr/lib/libsqlite3.so /opt/poky/2.6。 2 / sysroots / armv7at2hf-neon-poky-linux-gnueabi / usr / lib / libdbus-1.so /opt/poky/2.6.2/sysroots/armv7at2hf-neon-poky-linux-gnueabi/usr/lib/libboost_date_time- mt.so /opt/poky/2.6.2/sysroots/armv7at2hf-neon-poky-linux-gnueabi/usr/lib/libboost_atomic-mt.so /opt/poky/2.6.2/sysroots/armv7at2hf-neon-poky- linux-gnueabi / usr / lib / libboost_chrono-mt.so /opt/poky/2.6.2/sysroots/armv7at2hf-neon-poky-linux-gnueabi/usr/lib/libboost_filesystem-mt.so /opt/poky/2.6。 2 / sysroots / armv7at2hf-neon-poky-linux-gnueabi / usr / lib / libboost_system-mt.so ../../../targetfs/lib_priv/lib_arm/libxxx_core.so /opt/poky/2.6.2/ sysroots / armv7at2hf-neon-poky-linux-gnueabi / usr / lib / libgtest.a -pthread
您可以在粗体中看到libboost_thread传递给链接器（它是指向实际lib的链接）。上面的命令输出：
/opt/poky/2.6.2/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/8.2.0/real-ld： ../../../targetfs/lib_priv/lib_arm/libxxx_core.so：对“ boost :: this_thread :: interruption_point（）”的未定义引用 /opt/poky/2.6.2/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/8.2.0/real-ld：../ ../../targetfs/lib_priv/lib_arm/libxxx_core.so：对'boost :: thread :: native_handle（）'的未定义引用 /opt/poky/2.6.2/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/8.2.0/real-ld：../ ..... /opt/poky/2.6.2/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/8.2.0/real-ld：../ ../../targetfs/lib_priv/lib_arm/libxxx_core.so：未定义对'typeinfo的boost :: detail :: thread_data_base引用 /opt/poky/2.6.2/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/8.2.0/real-ld：../ ../../targetfs/lib_priv/lib_arm/libxxx_core.so：对“ boost :: detail :: get_current_thread_data（）”的未定义引用 /opt/poky/2.6.2/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/8.2.0/real-ld：../ ../../targetfs/lib_priv/lib_arm/libxxx_core.so：对“ boost :: this_thread :: interruption_requested（）”的未定义引用 /opt/poky/2.6.2/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/8.2.0/real-ld：../ ../../targetfs/lib_priv/lib_arm/libxxx_core.so：未定义对'boost :: detail :: thread_data_base ::〜thread_data_base（）的引用 /opt/poky/2.6.2/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/8.2.0/real-ld：../ ../../targetfs/lib_priv/lib_arm/libxxx_core.so：对“ boost :: thread :: detach（）”的未定义引用 /opt/poky/2.6.2/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/8.2.0/real-ld：../ ../../targetfs/lib_priv/lib_arm/libxxx_core.so：对“ boost :: chrono :: steady_clock :: now（）”的未定义引用 /opt/poky/2.6.2/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/8.2.0/real-ld：../ ../../targetfs/lib_priv/lib_arm/libxxx_core.so：对“ boost :: thread :: join_noexcept（）”的未定义引用 /opt/poky/2.6.2/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/8.2.0/real-ld：../ ../../targetfs/lib_priv/lib_arm/libxxx_core.so：对“ boost :: thread :: interrupt（）”的未定义引用 /opt/poky/2.6.2/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/8.2.0/real-ld：../ ../../targetfs/lib_priv/lib_arm/libxxx_core.so：对“ boost :: thread :: start_thread_noexcept（）”的未定义引用 /opt/poky/2.6.2/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/8.2.0/real-ld：../ ../../targetfs/lib_priv/lib_arm/libxxx_core.so：对“ vtable for boost :: detail :: thread_data_base”的未定义引用
查看libxxx_core导出的符号并grepping未定义引用之一：
nm -DC libxxx_core.so | grep thread::native_handle
U boost::thread::native_handle()
U =>该符号未定义。
然后在libboost_thread中寻找相同的符号：
nm -DC libboost_thread.so.1.68.0 | grep native_handle
0000c3b1 T boost::thread::native_handle()
T =>该符号位于文本（代码）部分。
因此，链接程序应该能够解决此依赖性（和其他依赖性）。
我们尝试过的事情
libxx_core）在未定义的引用中，链接器给出的最后一个错误是
/opt/poky/2.6.2/sysroots/x86_64-pokysdk-linux/usr/libexec/arm-poky-linux-gnueabi/gcc/arm-poky-linux-gnueabi/8.2.0/real-ld： ../../../targetfs/lib_priv/lib_arm/libxxx_core.so：未定义对“ vtable for boost :: detail :: thread_data_base”的引用
可能与未定义的引用有关。我也在努力。
问题
关于可能导致这些错误的原因的任何想法，或有关如何正确调试此行为的建议？
谢谢， 加布里埃