Retro68/gcc/newlib/libc/sys/sysmec/_exit.c
2012-03-27 01:51:53 +02:00

35 lines
767 B
C

#include <_ansi.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "sys/syscall.h"
int errno;
int __trap0 ();
#define TRAP0(f, p1, p2, p3) __trap0(f, (p1), (p2), (p3))
static void _do_dtors()
{
/* The loop variable is static so that if a destructor calls exit,
and we return here, we simply continue with the next destructor. */
typedef void (*pfunc) ();
extern pfunc __dtors[];
extern pfunc __dtors_end[];
static pfunc *p = __dtors;
while (p < __dtors_end)
(*p++) ();
}
void _exit (n)
{
/* Destructors should be done earlier because they need to be done before the
files are closed, but here is better than nowhere (and this balances the
constructors done in crt1.c. */
_do_dtors();
TRAP0 (SYS_exit, n, 0, 0);
}