7 #define malloc __libc_malloc
8 #define calloc __libc_calloc
12 /* Ensure that at least 32 atexit handlers can be registered without malloc */
18 void (*f
[COUNT
])(void *);
23 static volatile int lock
[1];
24 volatile int *const __atexit_lockptr
= lock
;
26 void __funcs_on_exit()
28 void (*func
)(void *), *arg
;
30 for (; head
; head
=head
->next
, slot
=COUNT
) while(slot
-->0) {
39 void __cxa_finalize(void *dso
)
43 int __cxa_atexit(void (*func
)(void *), void *arg
, void *dso
)
47 /* Defer initialization of head so it can be in BSS */
48 if (!head
) head
= &builtin
;
50 /* If the current function list is full, add a new one */
52 struct fl
*new_fl
= calloc(sizeof(struct fl
), 1);
62 /* Append function to the list. */
71 static void call(void *p
)
73 ((void (*)(void))(uintptr_t)p
)();
76 int atexit(void (*func
)(void))
78 return __cxa_atexit(call
, (void *)(uintptr_t)func
, 0);