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+-- GHDL Run Time (GRT) - secondary stack.
+-- Copyright (C) 2002, 2003, 2004, 2005 Tristan Gingold
+--
+-- GHDL is free software; you can redistribute it and/or modify it under
+-- the terms of the GNU General Public License as published by the Free
+-- Software Foundation; either version 2, or (at your option) any later
+-- version.
+--
+-- GHDL is distributed in the hope that it will be useful, but WITHOUT ANY
+-- WARRANTY; without even the implied warranty of MERCHANTABILITY or
+-- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+-- for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with GCC; see the file COPYING. If not, write to the Free
+-- Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+-- 02111-1307, USA.
+with System;
+with Grt.Types; use Grt.Types;
+
+-- Secondary stack management.
+package Grt.Stack2 is
+ type Stack2_Ptr is new System.Address;
+ Null_Stack2_Ptr : constant Stack2_Ptr := Stack2_Ptr (System.Null_Address);
+
+ type Mark_Id is new Integer_Address;
+
+ function Mark (S : Stack2_Ptr) return Mark_Id;
+ procedure Release (S : Stack2_Ptr; Mark : Mark_Id);
+ function Allocate (S : Stack2_Ptr; Size : Ghdl_Index_Type)
+ return System.Address;
+ function Create return Stack2_Ptr;
+
+ -- Check S is empty.
+ procedure Check_Empty (S : Stack2_Ptr);
+end Grt.Stack2;