_LIBCXXABI_FUNC_VIS int __cxa_thread_atexit(Dtor dtor, void* obj, void* dso_symbol) throw() {
#ifdef HAVE___CXA_THREAD_ATEXIT_IMPL
return __cxa_thread_atexit_impl(dtor, obj, dso_symbol);
#else
if (__cxa_thread_atexit_impl) {
return __cxa_thread_atexit_impl(dtor, obj, dso_symbol);
} else {
// Initialize the dtors std::__libcpp_tls_key (uses __cxa_guard_*() for
// one-time initialization and __cxa_atexit() for destruction)
static DtorsManager manager;
if (!dtors_alive) {
if (std::__libcpp_tls_set(dtors_key, &dtors_key) != 0) {
return -1;
}
dtors_alive = true;
}
auto head = static_cast<DtorList*>(std::malloc(sizeof(DtorList)));
if (!head) {
return -1;
}
head->dtor = dtor;
head->obj = obj;
head->next = dtors;
dtors = head;
return 0;
}
#endif // HAVE___CXA_THREAD_ATEXIT_IMPL
}
static void* thread_main(void* arg) {
__cxa_thread_atexit_impl(thread_atexit_fn5, arg, nullptr);
__cxa_thread_atexit_impl(thread_atexit_fn4, arg, nullptr);
__cxa_thread_atexit_impl(thread_atexit_fn3, arg, nullptr);
__cxa_thread_atexit_impl(thread_atexit_fn2, arg, nullptr);
__cxa_thread_atexit_impl(thread_atexit_fn1, arg, nullptr);
return nullptr;
}
int __cxa_thread_atexit(void (*dtor)(void *), void *obj,
void *dso_symbol) throw() {
extern int __cxa_thread_atexit_impl(void (*)(void *), void *, void *);
return __cxa_thread_atexit_impl(dtor, obj, dso_symbol);
}
void do_foo (void)
{
static __thread A b;
__cxa_thread_atexit_impl (A_dtor, &b, __dso_handle);
}
static void thread_atexit_fn3(void* arg) {
__cxa_thread_atexit_impl(thread_atexit_from_atexit, arg, nullptr);
std::string* call_sequence = static_cast<std::string*>(arg);
*call_sequence += "three, ";
}