1#include <stdlib.h>
2#include <stdint.h>
3#include "libc.h"
4
5static void dummy()
6{
7}
8
9/* atexit.c and __stdio_exit.c override these. the latter is linked
10 * as a consequence of linking either __toread.c or __towrite.c. */
11weak_alias(dummy, __funcs_on_exit);
12weak_alias(dummy, __stdio_exit);
13weak_alias(dummy, _fini);
14
15extern weak hidden void (*const __fini_array_start)(void), (*const __fini_array_end)(void);
16
17static void libc_exit_fini(void)
18{
19 uintptr_t a = (uintptr_t)&__fini_array_end;
20 for (; a>(uintptr_t)&__fini_array_start; a-=sizeof(void(*)()))
21 (*(void (**)())(a-sizeof(void(*)())))();
22 _fini();
23}
24
25weak_alias(libc_exit_fini, __libc_exit_fini);
26
27_Noreturn void exit(int code)
28{
29 __funcs_on_exit();
30 __libc_exit_fini();
31 __stdio_exit();
32 _Exit(code);
33}