-- --
-- S p e c --
-- --
--- Copyright (C) 1992-2004 Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2011, 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 2, or (at your option) any later ver- --
+-- 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. See the GNU General Public License --
--- for more details. You should have received a copy of the GNU General --
--- Public License distributed with GNAT; see file COPYING. If not, write --
--- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
+-- or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
--- As a special exception, if other files instantiate generics from this --
--- unit, or you link this unit with other files to produce an executable, --
--- this unit does not by itself cause the resulting executable to be --
--- covered by the GNU General Public License. This exception does not --
--- however invalidate any other reasons why the executable file might be --
--- covered by the GNU Public License. --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception, --
+-- version 3.1, as published by the Free Software Foundation. --
+-- --
+-- 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 --
+-- <http://www.gnu.org/licenses/>. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
+pragma Compiler_Unit;
+
with System.Storage_Elements;
package System.Secondary_Stack is
Default_Secondary_Stack_Size : Natural := 10 * 1024;
-- Default size of a secondary stack. May be modified by binder -D switch
+ -- which causes the binder to generate an appropriate assignment in the
+ -- binder generated file.
procedure SS_Init
(Stk : in out Address;
Size : Natural := Default_Secondary_Stack_Size);
-- Initialize the secondary stack with a main stack of the given Size.
--
- -- If System.Parameters.Sec_Stack_Ratio equals Dynamic, Stk is really an
- -- OUT parameter that will be allocated on the heap. Then all further
+ -- If System.Parameters.Sec_Stack_Percentage equals Dynamic, Stk is really
+ -- an OUT parameter that will be allocated on the heap. Then all further
-- allocations which do not overflow the main stack will not generate
-- dynamic (de)allocation calls. If the main Stack overflows, a new
-- chuck of at least the same size will be allocated and linked to the
-- previous chunk.
--
- -- Otherwise (Sec_Stack_Ratio between 0 and 100), Stk is an IN parameter
- -- that is already pointing to a Stack_Id. The secondary stack in this case
- -- is fixed, and any attempt to allocated more than the initial size will
- -- result in a Storage_Error being raised.
+ -- Otherwise (Sec_Stack_Percentage between 0 and 100), Stk is an IN
+ -- parameter that is already pointing to a Stack_Id. The secondary stack
+ -- in this case is fixed, and any attempt to allocate more than the initial
+ -- size will result in a Storage_Error being raised.
--
-- Note: the reason that Stk is passed is that SS_Init is called before
-- the proper interface is established to obtain the address of the
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
+ -- ??? missing comment here
function SS_Get_Max return Long_Long_Integer;
-- Return maximum used space in storage units for the current secondary
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