Subversion Repositories openrisc

------------------------------------------------------------------------------

--                                                                          --

--                         GNAT COMPILER COMPONENTS                         --

--                                                                          --

--              S Y S T E M . S T A N D A R D _ L I B R A R Y               --

--                                                                          --

--                                 B o d y                                  --

--                                                                          --

--          Copyright (C) 1995-2011, 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 3,  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.                                     --

--                                                                          --

-- As a special exception under Section 7 of GPL version 3, you are granted --

-- additional permissions described in the GCC Runtime Library Exception,   --

-- version 3.1, as published by the Free Software Foundation.               --

--                                                                          --

-- You should have received a copy of the GNU General Public License and    --

-- a copy of the GCC Runtime Library Exception along with this program;     --

-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --

-- <http://www.gnu.org/licenses/>.                                          --

--                                                                          --

-- GNAT was originally developed  by the GNAT team at  New York University. --

-- Extensive contributions were provided by Ada Core Technologies Inc.      --

--                                                                          --

------------------------------------------------------------------------------

pragma Compiler_Unit;

--  The purpose of this body is simply to ensure that the two with'ed units

--  are properly included in the link. They are not with'ed from the spec

--  of System.Standard_Library, since this would cause order of elaboration

--  problems (Elaborate_Body would have the same problem).

pragma Polling (Off);

--  We must turn polling off for this unit, because otherwise we get

--  elaboration circularities with Ada.Exceptions if polling is on.

pragma Warnings (Off);

--  Kill warnings from unused withs. These unused with's are here to make

--  sure the relevant units are loaded and properly elaborated.

with System.Soft_Links;

--  Referenced directly from generated code using external symbols so it

--  must always be present in a build, even if no unit has a direct with

--  of this unit. Also referenced from exception handling routines.

--  This is needed for programs that don't use exceptions explicitly but

--  direct calls to Ada.Exceptions are generated by gigi (for example,

--  by calling __gnat_raise_constraint_error directly).

with System.Memory;

--  Referenced directly from generated code using external symbols, so it

--  must always be present in a build, even if no unit has a direct with

--  of this unit.

pragma Warnings (On);

package body System.Standard_Library is

   Runtime_Finalized : Boolean := False;

   --  Set to True when adafinal is called. Used to ensure that subsequent

   --  calls to adafinal after the first have no effect.

   --------------------------

   -- Abort_Undefer_Direct --

   --------------------------

   procedure Abort_Undefer_Direct is

   begin

      System.Soft_Links.Abort_Undefer.all;

   end Abort_Undefer_Direct;

   --------------

   -- Adafinal --

   --------------

   procedure Adafinal is

   begin

      if not Runtime_Finalized then

         Runtime_Finalized := True;

         System.Soft_Links.Adafinal.all;

      end if;

   end Adafinal;

   -----------------

   -- Break_Start --

   -----------------

   procedure Break_Start;

   pragma Export (C, Break_Start, "__gnat_break_start");

   --  This is a dummy procedure that is called at the start of execution.

   --  Its sole purpose is to provide a well defined point for the placement

   --  of a main program breakpoint. This is not used anymore but kept for

   --  bootstrapping issues (still referenced by old gnatbind generated files).

   procedure Break_Start is

   begin

      null;

   end Break_Start;

end System.Standard_Library;