_dl_find_shlib
hint = _dl_find_shlib(&req_sod, paths, ignore_hints);
hint = _dl_find_shlib(&req_sod, _dl_libpath, ignore_hints);
hint = _dl_find_shlib(&req_sod, parent->runpath, ignore_hints);
hint = _dl_find_shlib(&req_sod, parent->rpath,
hint = _dl_find_shlib(&req_sod, _dl_objects->rpath,
hint = _dl_find_shlib(&req_sod, NULL, ignore_hints);
char *_dl_find_shlib(struct sod *sodp, char **searchpath, int nohints);