------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- A U N I T . M E M O R Y --
-- --
-- B o d y --
-- --
-- Copyright (C) 2001-2003 Free Software Foundation, Inc. --
-- Copyright (C) 2008-2011, AdaCore --
-- --
-- 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. --
-- --
-- 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 is maintained by AdaCore (http://www.adacore.com) --
-- --
------------------------------------------------------------------------------
-- Dummy implementation.
with System.Storage_Elements;
with Unchecked_Conversion;
package body AUnit.Memory is
package SSE renames System.Storage_Elements;
Default_Size : constant := 100 * 1_024;
type Mark_Id is new SSE.Integer_Address;
type Memory is array (Mark_Id range <>) of SSE.Storage_Element;
for Memory'Alignment use Standard'Maximum_Alignment;
Mem : Memory (1 .. Default_Size);
Top : Mark_Id := Mem'First;
function To_Mark_Id is new Unchecked_Conversion
(size_t, Mark_Id);
-----------
-- Alloc --
-----------
function AUnit_Alloc (Size : size_t) return System.Address is
Max_Align : constant Mark_Id := Mark_Id (Standard'Maximum_Alignment);
Max_Size : Mark_Id :=
((To_Mark_Id (Size) + Max_Align - 1) / Max_Align)
* Max_Align;
Location : constant Mark_Id := Top;
begin
if Max_Size = 0 then
Max_Size := Max_Align;
end if;
if Size = size_t'Last then
raise Storage_Error;
end if;
Top := Top + Max_Size;
if Top > Default_Size then
raise Storage_Error;
end if;
return Mem (Location)'Address;
end AUnit_Alloc;
----------
-- Free --
----------
procedure AUnit_Free (Obj : System.Address) is
pragma Unreferenced (Obj);
begin
null;
end AUnit_Free;
end AUnit.Memory;