1------------------------------------------------------------------------------ 2-- -- 3-- GNAT COMPILER COMPONENTS -- 4-- -- 5-- S Y S T E M . P A R A M E T E R S -- 6-- -- 7-- B o d y -- 8-- -- 9-- Copyright (C) 1997-2002 Free Software Foundation, Inc. -- 10-- -- 11-- GNAT is free software; you can redistribute it and/or modify it under -- 12-- terms of the GNU General Public License as published by the Free Soft- -- 13-- ware Foundation; either version 2, or (at your option) any later ver- -- 14-- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- 15-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- 16-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- 17-- for more details. You should have received a copy of the GNU General -- 18-- Public License distributed with GNAT; see file COPYING. If not, write -- 19-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- 20-- MA 02111-1307, USA. -- 21-- -- 22-- As a special exception, if other files instantiate generics from this -- 23-- unit, or you link this unit with other files to produce an executable, -- 24-- this unit does not by itself cause the resulting executable to be -- 25-- covered by the GNU General Public License. This exception does not -- 26-- however invalidate any other reasons why the executable file might be -- 27-- covered by the GNU Public License. -- 28-- -- 29-- GNAT was originally developed by the GNAT team at New York University. -- 30-- Extensive contributions were provided by Ada Core Technologies Inc. -- 31-- -- 32------------------------------------------------------------------------------ 33 34-- This is the OS/2 specific version - default stacksizes need to be large 35 36package body System.Parameters is 37 38 ------------------------ 39 -- Default_Stack_Size -- 40 ------------------------ 41 42 function Default_Stack_Size return Size_Type is 43 begin 44 -- The default stack size for extra tasks is based on the 45 -- default stack size for the main task (8 MB) and for the heap 46 -- (32 MB). 47 48 -- In OS/2 it doesn't hurt to define large stacks, unless 49 -- the system is configured to commit all memory reservations. 50 -- This is not a default configuration however. 51 52 return 1024 * 1024; 53 end Default_Stack_Size; 54 55 ------------------------ 56 -- Minimum_Stack_Size -- 57 ------------------------ 58 59 function Minimum_Stack_Size return Size_Type is 60 begin 61 -- System functions may need 8 kB of stack, so 12 kB seems a 62 -- good minimum. 63 return 12 * 1024; 64 end Minimum_Stack_Size; 65 66 ------------------------- 67 -- Adjust_Storage_Size -- 68 ------------------------- 69 70 function Adjust_Storage_Size (Size : Size_Type) return Size_Type is 71 begin 72 if Size = Unspecified_Size then 73 return Default_Stack_Size; 74 75 elsif Size < Minimum_Stack_Size then 76 return Minimum_Stack_Size; 77 78 else 79 return Size; 80 end if; 81 end Adjust_Storage_Size; 82 83end System.Parameters; 84