static const int syscall_regs[MAX_ARGS] = {
4 * (REG_REG0+4), 4 * (REG_REG0+5), 4 * (REG_REG0+6),
4 * (REG_REG0+7), 4 * (REG_REG0 ), 4 * (REG_REG0+1)
};
unsigned int i;
for (i = 0; i < tcp->s_ent->nargs; ++i)
if (upeek(tcp->pid, syscall_regs[i], &tcp->u_arg[i]) < 0)
return -1;