#ifndef ARCH_REGSET
# define ARCH_REGSET s390_regset
#endif
/* Return codes: 1 - ok, 0 - ignore, other - error. */
static int
arch_get_scno(struct tcb *tcp)
{
tcp->scno = ARCH_REGSET.gprs[2] ?
ARCH_REGSET.gprs[2] : ARCH_REGSET.gprs[1];
return 1;
}