------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- S Y S T E M . S E C O N D A R Y _ S T A C K -- -- -- -- S p e c -- -- -- -- Copyright (C) 1992-2014, Free Software Foundation, Inc. -- -- -- -- GNAT is free software; you can redistribute it and/or modify it under -- -- terms of the GNU General Public License as published by the Free Soft- -- -- ware Foundation; either version 3, or (at your option) any later ver- -- -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- -- or FITNESS FOR A PARTICULAR PURPOSE. -- -- -- -- -- -- -- -- -- -- -- -- You should have received a copy of the GNU General Public License and -- -- a copy of the GCC Runtime Library Exception along with this program; -- -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- -- . -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ -- Version for use in HI-E mode with System.Storage_Elements; package System.Secondary_Stack is package SSE renames System.Storage_Elements; Default_Secondary_Stack_Size : constant := 10 * 1024; -- Default size of a secondary stack procedure SS_Init (Stk : System.Address; Size : Natural := Default_Secondary_Stack_Size); -- Initialize the secondary stack with a main stack of the given Size. -- -- Stk is an IN parameter that is already pointing to a memory area of -- size Size and aligned to Standard'Maximum_Alignment. -- -- The secondary stack is fixed, and any attempt to allocate more than the -- initial size will result in a Storage_Error being raised. procedure SS_Allocate (Address : out System.Address; Storage_Size : SSE.Storage_Count); -- Allocate enough space for a 'Storage_Size' bytes object with Maximum -- alignment. The address of the allocated space is returned in 'Address' type Mark_Id is private; -- Type used to mark the stack function SS_Mark return Mark_Id; -- Return the Mark corresponding to the current state of the stack procedure SS_Release (M : Mark_Id); -- Restore the state of the stack corresponding to the mark M. If an -- additional chunk have been allocated, it will never be freed during a private SS_Pool : Integer; -- Unused entity that is just present to ease the sharing of the pool -- mechanism for specific allocation/deallocation in the compiler type Mark_Id is new SSE.Integer_Address; end System.Secondary_Stack;