[build] /usr/include/c++/7/ext/atomicity.h:67: undefined reference to `__ubsan_handle_type_mismatch'
时间: 2023-09-21 18:08:55 浏览: 51
引用\[1\]:/usr/bin/ld: CMakeFiles/main.dir/main.cpp.o: undefined reference to symbol 'shm_unlink@@GLIBC_2.2.5' //lib/x86_64-linux-gnu/librt.so.1: 无法添加符号: DSO missing from command line collect2: error: ld returned 1 exit status CMakeFiles/main.dir/build.make:111: recipe for target 'main' failed make\[2\]: *** \[main\] Error 1 CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/main.dir/all' failed make\[1\]: *** \[CMakeFiles/main.dir/all\] Error 2 Makefile:83: recipe for target 'all' failed make: *** \[all\] Error 2 于是乎网上查找资料,解决了,方法是 。 引用\[2\]:最近使用c++11 的标准thread库,发现传参的时候的bug,很隐密。 ... /usr/include/c++/4.8.2/functional:1697:61: error: no type named ‘type’ in ‘class std::result_of<void (*(std::unordered_map<int, int>, int, int))(std::unordered_map<int, int>&, int, int)>’ typedef typename result_of<_Callable(_Args...)>::type result_type; ... 。 引用\[3\]:对于自定义类型,则不一定是lock_free的 #include <atomic> #include <iostream> struct A{ char n\[1\]; }; int main() { std::atomic<A> a; std::cout << "sizeof int: " << sizeof(int) << " byte, " << a.is_lock_free() << std::endl; } 。
问题:\[build\] /usr/include/c++/7/ext/atomicity.h:67: undefined reference to `__ubsan_handle_type_mismatch'
回答: 这个错误是由于链接器无法找到`__ubsan_handle_type_mismatch`符号引起的。\[3\]这个符号通常与Undefined Behavior Sanitizer (UBSan)相关联,它是GCC的一个工具,用于检测C++程序中的未定义行为。要解决这个问题,您可以尝试在链接时添加`-lubsan`选项,以确保链接器能够找到所需的库。具体来说,您可以在CMakeLists.txt文件中的目标链接器命令中添加`-lubsan`选项,或者在命令行中手动添加该选项。这样,链接器就能够找到`__ubsan_handle_type_mismatch`符号并解决链接错误。
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