629         (*frame).arg2 = &((*frame).context) as *const sigcontext as usize;  in setup_frame()
638     err |= setup_sigcontext(unsafe { &mut (*frame).context }, oldset, &regs).unwrap_or(1);  in setup_frame()
717 fn setup_sigcontext(context: &mut sigcontext, mask: &sigset_t, regs: &pt_regs) -> Result<i32, i32> {  in setup_sigcontext()
720     context.oldmask = *mask;  in setup_sigcontext()
721     context.regs = regs.clone();  in setup_sigcontext()
722     context.trap_num = unsafe { (*current_thread).trap_num };  in setup_sigcontext()
723     context.err_code = unsafe { (*current_thread).err_code };  in setup_sigcontext()
724     context.cr2 = unsafe { (*current_thread).cr2 };  in setup_sigcontext()
735 fn restore_sigcontext(context: *const sigcontext, regs: &mut pt_regs) -> bool {  in restore_sigcontext()
738         *regs = (*context).regs;  in restore_sigcontext()
740         (*current_thread).trap_num = (*context).trap_num;  in restore_sigcontext()
741         (*current_thread).cr2 = (*context).cr2;  in restore_sigcontext()
742         (*current_thread).err_code = (*context).err_code;  in restore_sigcontext()
985     let mut sigmask: sigset_t = unsafe { (*frame).context.oldmask };  in sys_rt_sigreturn()
989     if restore_sigcontext(unsafe { &mut (*frame).context }, regs) == false {  in sys_rt_sigreturn()