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);