with System;                  use System;
with System.Storage_Elements; use System.Storage_Elements;
with System.Checked_Pools;

GNAT COMPILER COMPONENTS

G N A T . D E B U G _ P O O L S

S p e c

$Revision: 1.5 $

Copyright (C) 1992-2000 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- 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.

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.

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).

The debug pool is used to track down memory corruption due to use of deallocated memory or incorrect unchecked conversions. Allocation strategy : - allocation: . memory is normally allocated with malloc . the allocated address is noted in a table - deallocation: . memory is filled with "DEAD_BEEF" patterns . memory is not freed . exceptions are raised if the memory was not allocated or was already deallocated - dereference: . exceptions are raised if the memory was not allocated or was already deallocated

package GNAT.Debug_Pools is

type Debug_Pool is
  new System.Checked_Pools.Checked_Pool with private;

procedure Allocate
  (Pool                     : in out Debug_Pool;
   Storage_Address          : out Address;
   Size_In_Storage_Elements : in  Storage_Count;
   Alignment                : in  Storage_Count);

procedure Deallocate
  (Pool                     : in out Debug_Pool;
   Storage_Address          : in Address;
   Size_In_Storage_Elements : in Storage_Count;
   Alignment                : in Storage_Count);

function Storage_Size
  (Pool : Debug_Pool)
   return System.Storage_Elements.Storage_Count;

procedure Dereference
  (Pool                     : in out Debug_Pool;
   Storage_Address          : in System.Address;
   Size_In_Storage_Elements : in Storage_Count;
   Alignment                : in Storage_Count);

generic
   with procedure Put_Line (S : String);
procedure Print_Info (Pool : Debug_Pool);

private

   --  Implementation-defined ...

end GNAT.Debug_Pools;