1. error: undefined reference to 'dlsym':
solution: target_link_libraries(target -lpthread -ldl)
https://www.cnblogs.com/midnightcat/p/12704247.html
c++ - Undefined reference to 'dlsym' - Stack Overflow
2. .dynsym local symbol at index 3 (>= sh_info of 3)
solution: sudo ln -sf /usr/bin/x86_64-linux-gnu-ld.gold /usr/bin/ld
https://blog.csdn.net/qq_32640443/article/details/123479850?spm=1001.2014.3001.5501