GLIBC_2.17 {
  global:
    dladdr1; dlinfo;
    dladdr; dlclose; dlerror; dlopen; dlsym;
    dlmopen;
    dlopen; dlvsym;
  local:
    *;
};
GLIBC_PRIVATE {
  global:
    _dlfcn_hook;
} GLIBC_2.17;