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| | #include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include "libc.h"
#include "atomic.h"
#include "syscall.h"
static void dummy()
{
}
/* __toread.c, __towrite.c, and atexit.c override these */
weak_alias(dummy, __funcs_on_exit);
weak_alias(dummy, __flush_on_exit);
weak_alias(dummy, __seek_on_exit);
_Noreturn void exit(int code)
{
static int lock;
/* If more than one thread calls exit, hang until _Exit ends it all */
while (a_swap(&lock, 1)) __syscall(SYS_pause);
__funcs_on_exit();
if (libc.fini) libc.fini();
if (libc.ldso_fini) libc.ldso_fini();
__flush_on_exit();
__seek_on_exit();
_Exit(code);
for(;;);
}
|