/*
* Call all handlers registered with __cxa_atexit for the shared
* object owning 'dso'. Note: if 'dso' is NULL, then all remaining
* handlers are called.
*/
void
__cxa_finalize(void *dso)
{
struct dl_phdr_info phdr_info;
struct atexit *p;
struct atexit_fn fn;
int n, has_phdr;
if (dso != NULL) {
has_phdr = _rtld_addr_phdr(dso, &phdr_info);
} else {
has_phdr = 0;
global_exit = 1;
}
_MUTEX_LOCK(&atexit_mutex);
for (p = __atexit; p; p = p->next) {
for (n = p->ind; --n >= 0;) {
if (p->fns[n].fn_type == ATEXIT_FN_EMPTY)
continue; /* already been called */
fn = p->fns[n];
if (dso != NULL && dso != fn.fn_dso) {
/* wrong DSO ? */
if (!has_phdr || global_exit ||
!__elf_phdr_match_addr(&phdr_info,
fn.fn_ptr.cxa_func))
continue;
}
/*
Mark entry to indicate that this particular handler
has already been called.
*/
p->fns[n].fn_type = ATEXIT_FN_EMPTY;
_MUTEX_UNLOCK(&atexit_mutex);
/* Call the function of correct type. */
if (fn.fn_type == ATEXIT_FN_CXA)
fn.fn_ptr.cxa_func(fn.fn_arg);
else if (fn.fn_type == ATEXIT_FN_STD)
fn.fn_ptr.std_func();
_MUTEX_LOCK(&atexit_mutex);
}
}
_MUTEX_UNLOCK(&atexit_mutex);
if (dso == NULL)
_MUTEX_DESTROY(&atexit_mutex);
if (has_phdr && !global_exit && &__pthread_cxa_finalize != NULL)
__pthread_cxa_finalize(&phdr_info);
}
void
_thr_tsd_unload(struct dl_phdr_info *phdr_info)
{
struct pthread *curthread = _get_curthread();
void (*destructor)(void *);
int key;
THR_LOCK_ACQUIRE(curthread, &_keytable_lock);
for (key = 0; key < PTHREAD_KEYS_MAX; key++) {
if (_thread_keytable[key].allocated) {
destructor = _thread_keytable[key].destructor;
if (destructor != NULL) {
if (__elf_phdr_match_addr(phdr_info, destructor))
_thread_keytable[key].destructor = NULL;
}
}
}
THR_LOCK_RELEASE(curthread, &_keytable_lock);
}
