minix3/lib/libc/sys/_exit.c

32 lines
601 B
C

#include <sys/cdefs.h>
#include "namespace.h"
#include <lib.h>
#include <string.h>
#include <unistd.h>
#ifdef __weak_alias
__weak_alias(_Exit, _exit)
#endif
__dead void _exit(status)
int status;
{
void (*suicide)(void);
message m;
memset(&m, 0, sizeof(m));
m.m_lc_pm_exit.status = status;
_syscall(PM_PROC_NR, PM_EXIT, &m);
/* If exiting nicely through PM fails for some reason, try to
* commit suicide. E.g., message to PM might fail due to deadlock.
*/
suicide = (void (*)(void)) -1;
suicide();
/* If committing suicide fails for some reason, hang. */
for(;;) { }
}