#include <unistd.h>
#include <stdio.h>
#include "libc.h"
+#include "atomic.h"
+#include "syscall.h"
static void dummy()
{
}
-/* __towrite.c and atexit.c override these */
+/* __toread.c, __towrite.c, and atexit.c override these */
weak_alias(dummy, __funcs_on_exit);
-weak_alias(dummy, __fflush_on_exit);
+weak_alias(dummy, __flush_on_exit);
+weak_alias(dummy, __seek_on_exit);
-void exit(int code)
+_Noreturn void exit(int code)
{
static int lock;
/* If more than one thread calls exit, hang until _Exit ends it all */
- LOCK(&lock);
+ while (a_swap(&lock, 1)) __syscall(SYS_pause);
- /* Only do atexit & stdio flush if they were actually used */
__funcs_on_exit();
- __fflush_on_exit();
-
- /* Destructor s**t is kept separate from atexit to avoid bloat */
if (libc.fini) libc.fini();
if (libc.ldso_fini) libc.ldso_fini();
+ __flush_on_exit();
+ __seek_on_exit();
_Exit(code);
for(;;);