_rtld_addr_phdr
if (_rtld_addr_phdr(pc, &info)) {
has_phdr = _rtld_addr_phdr(dso, &phdr_info);
if (_rtld_addr_phdr(dtor->func, &phdr_info) &&
int _rtld_addr_phdr(const void *, struct dl_phdr_info *) __exported;
int _rtld_addr_phdr(const void *, struct dl_phdr_info *);