_dl_cacheflush
_dl_cacheflush((unsigned long)r_addr, 2);
_dl_cacheflush((unsigned long)r_addr, 2);
_dl_cacheflush((unsigned long)r_addr, 4);
_dl_cacheflush(plt_start + object->obj_base, plt_size);
int _dl_cacheflush(unsigned long, size_t);