File : s-memory.ads
------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
5 -- S Y S T E M . M E M O R Y --
-- --
-- S p e c --
-- --
-- $Revision: 1.2 $
10 -- --
-- Copyright (C) 2001 Free Software Foundation, Inc. --
-- --
-- This specification is derived from the Ada Reference Manual for use with --
-- GNAT. The copyright notice above, and the license provisions that follow --
15 -- apply solely to the contents of the part following the private keyword. --
-- --
-- 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- --
20 -- 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 --
25 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
-- MA 02111-1307, USA. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
30 -- 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. --
-- --
35 -- GNAT was originally developed by the GNAT team at New York University. --
-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
-- --
------------------------------------------------------------------------------
40 -- This package provides the low level memory allocation/deallocation
-- mechanisms used by GNAT.
-- To provide an alternate implementation, simply recompile the modified
-- body of this package with gnatmake -u -a -g s-memory.adb and make sure
45 -- that the ali and object files for this unit are found in the object
-- search path.
package System.Memory is
pragma Elaborate_Body;
50
type size_t is mod 2 ** Standard'Address_Size;
function Alloc (Size : size_t) return System.Address;
-- malloc for use by GNAT, with error checking and task lockout,
55 -- as well as allocation tracking.
procedure Free (Ptr : System.Address);
-- free for use by GNAT, with task lockout and allocation tracking.
60 function Realloc
(Ptr : System.Address;
Size : size_t)
return System.Address;
-- realloc for use by GNAT, with error checking and task lockout.
65
private
pragma Export (C, Alloc, "__gnat_malloc");
pragma Export (C, Free, "__gnat_free");
70 pragma Export (C, Realloc, "__gnat_realloc");
end System.Memory;