New Language: Ada

From-SVN: r45952

1 files changed, 85 insertions, 0 deletions

diff --git a/gcc/ada/5oparame.adb b/gcc/ada/5oparame.adb
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+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--                    S Y S T E M . P A R A M E T E R S                     --
+--                                                                          --
+--                                 B o d y                                  --
+--                                                                          --
+--                            $Revision: 1.2 $                              --
+--                                                                          --
+--          Copyright (C) 1997-1998 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). --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  This is the OS/2 specific version - default stacksizes need to be large
+
+package body System.Parameters is
+
+   ------------------------
+   -- Default_Stack_Size --
+   ------------------------
+
+   function Default_Stack_Size return Size_Type is
+   begin
+      --  The default stack size for extra tasks is based on the
+      --  default stack size for the main task (8 MB) and for the heap
+      --  (32 MB).
+
+      --  In OS/2 it doesn't hurt to define large stacks, unless
+      --  the system is configured to commit all memory reservations.
+      --  This is not a default configuration however.
+
+      return 1024 * 1024;
+   end Default_Stack_Size;
+
+   ------------------------
+   -- Minimum_Stack_Size --
+   ------------------------
+
+   function Minimum_Stack_Size return Size_Type is
+   begin
+      --  System functions may need 8 kB of stack, so 12 kB seems a
+      --  good minimum.
+      return 12 * 1024;
+   end Minimum_Stack_Size;
+
+   -------------------------
+   -- Adjust_Storage_Size --
+   -------------------------
+
+   function Adjust_Storage_Size (Size : Size_Type) return Size_Type is
+   begin
+      if Size = Unspecified_Size then
+         return Default_Stack_Size;
+
+      elsif Size < Minimum_Stack_Size then
+         return Minimum_Stack_Size;
+
+      else
+         return Size;
+      end if;
+   end Adjust_Storage_Size;
+
+end System.Parameters;