#include <stdlib.h>
-#include <unistd.h>
-#include <stdio.h>
+#include <stdint.h>
#include "libc.h"
-#include "atomic.h"
-#include "syscall.h"
static void dummy()
{
}
-/* __toread.c, __towrite.c, and atexit.c override these */
+/* atexit.c and __stdio_exit.c override these. the latter is linked
+ * as a consequence of linking either __toread.c or __towrite.c. */
weak_alias(dummy, __funcs_on_exit);
-weak_alias(dummy, __flush_on_exit);
-weak_alias(dummy, __seek_on_exit);
+weak_alias(dummy, __stdio_exit);
+
+#ifndef SHARED
+weak_alias(dummy, _fini);
+extern void (*const __fini_array_start)() __attribute__((weak));
+extern void (*const __fini_array_end)() __attribute__((weak));
+#endif
_Noreturn void exit(int code)
{
- static int lock;
+ __funcs_on_exit();
- /* If more than one thread calls exit, hang until _Exit ends it all */
- while (a_swap(&lock, 1)) __syscall(SYS_pause);
+#ifndef SHARED
+ uintptr_t a = (uintptr_t)&__fini_array_end;
+ for (; a>(uintptr_t)&__fini_array_start; a-=sizeof(void(*)()))
+ (*(void (**)())(a-sizeof(void(*)())))();
+ _fini();
+#endif
- __funcs_on_exit();
- if (libc.fini) libc.fini();
- if (libc.ldso_fini) libc.ldso_fini();
- __flush_on_exit();
- __seek_on_exit();
+ __stdio_exit();
_Exit(code);
for(;;);