VDSO_SYMBOL
sigtramp = VDSO_SYMBOL(current->mm->context.vdso, sigtramp);
regs->lr = (unsigned long)VDSO_SYMBOL(
regs->ra = (unsigned long)VDSO_SYMBOL(
restorer = VDSO_SYMBOL(current, sigreturn);
restorer = VDSO_SYMBOL(current, rt_sigreturn);
regs->psw.addr = VDSO_SYMBOL(current, restart_syscall);