------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- S Y S T E M . P A R A M E T E R S -- -- -- -- B o d y -- -- -- -- Copyright (C) 1995-2005, 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, 51 Franklin Street, Fifth Floor, -- -- Boston, MA 02110-1301, 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. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ -- This is the default (used on all native platforms) version of this package package body System.Parameters is ------------------------- -- 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; ------------------------ -- Default_Stack_Size -- ------------------------ function Default_Stack_Size return Size_Type is Default_Stack_Size : Integer; pragma Import (C, Default_Stack_Size, "__gl_default_stack_size"); begin if Default_Stack_Size = -1 then return 2 * 1024 * 1024; else return Size_Type (Default_Stack_Size); end if; end Default_Stack_Size; ------------------------ -- Minimum_Stack_Size -- ------------------------ function Minimum_Stack_Size return Size_Type is begin -- 12K is required for stack-checking to work reliably on most platforms -- when using the GCC scheme to propagate an exception in the ZCX case. return 12 * 1024; end Minimum_Stack_Size; end System.Parameters;