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Diffstat (limited to 'gcc/ada/s-memory.ads')
| -rw-r--r-- | gcc/ada/s-memory.ads | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/gcc/ada/s-memory.ads b/gcc/ada/s-memory.ads new file mode 100644 index 00000000000..6dafe93b877 --- /dev/null +++ b/gcc/ada/s-memory.ads @@ -0,0 +1,72 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME COMPONENTS -- +-- -- +-- S Y S T E M . M E M O R Y -- +-- -- +-- S p e c -- +-- -- +-- $Revision: 1.2 $ +-- -- +-- 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 -- +-- 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- -- +-- 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). -- +-- -- +------------------------------------------------------------------------------ + +-- 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 +-- that the ali and object files for this unit are found in the object +-- search path. + +package System.Memory is + pragma Elaborate_Body; + + 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, + -- as well as allocation tracking. + + procedure Free (Ptr : System.Address); + -- free for use by GNAT, with task lockout and allocation tracking. + + function Realloc + (Ptr : System.Address; + Size : size_t) + return System.Address; + -- realloc for use by GNAT, with error checking and task lockout. + +private + + pragma Export (C, Alloc, "__gnat_malloc"); + pragma Export (C, Free, "__gnat_free"); + pragma Export (C, Realloc, "__gnat_realloc"); + +end System.Memory; |