阅读dlopen（3）手册页（例如，通过
mandlopen在计算机上键入终端）：
如果filename包含斜杠（“
/”），则将其解释为（相对或绝对）路径名。否则，动态链接程序将按以下方式搜索库（有关更多详细信息，请参见ld.so（8））：
o (ELF only) If the executable file for the calling program contains a DT_RPATH tag, and does not contain a DT_RUNPATH tag, then the directories listed in the DT_RPATH tag are searched. o If, at the time that the program was started, the environment variable LD_LIBRARY_PATH was defined to contain a colon-separated list of directories, then these are searched. (As a security measure this variable is ignored for set-user-ID and set-group-ID programs.) o (ELF only) If the executable file for the calling program contains a DT_RUNPATH tag, then the directories listed in that tag are searched. o The cache file /etc/ld.so.cache (maintained by ldconfig(8)) is checked to see whether it contains an entry for filename. o The directories /lib and /usr/lib are searched (in that order).
因此，您需要调用
dlopen("./libLibraryName.so",RTLD_NOW)-而不是只dlopen("libLibraryName.so",RTLD_NOW)希望将其插入您的插件中$LD_LIBRARY_PATH，
/usr/lib/等等....-或添加
.到您的插件中
LD_LIBRARY_PATH（出于安全原因，我不建议这样做）。
正如Jhonnash回答的那样，您应该使用并显示
dlerrorwhen
dlopen（或
dlsym）失败的结果：
void* dlh = dlopen("./libLibraryName.so", RTLD_NOW); if (!dlh) { fprintf(stderr, "dlopen failed: %sn", dlerror()); exit(EXIT_FAILURE); };您可能需要阅读《高级Linux编程》等书籍，以大致了解有关Linux系统编程的知识。
