-- --
-- B o d y --
-- --
--- $Revision: 1.17 $
--- --
--- Copyright (C) 1995-2001 Free Software Foundation, Inc. --
+-- Copyright (C) 1995-2009, 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- --
+-- 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. 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. --
+-- 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. --
-- --
--- 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. --
+-- 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. --
--- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
+-- 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 Warnings (Off);
--- Kill warnings from unused withs
-
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
--- Also referenced from exception handling routines.
--- This is needed for programs that don't use exceptions explicitely but
+-- 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
+-- 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
-- Set to True when adafinal is called. Used to ensure that subsequent
-- calls to adafinal after the first have no effect.
- Inside_Elab_Final_Code : Integer := 0;
- pragma Export (C, Inside_Elab_Final_Code, "__gnat_inside_elab_final_code");
- -- ???This variable is obsolete starting from 29/08 but cannot be removed
- -- ???right away due to the bootstrap problems
-
--------------------------
-- Abort_Undefer_Direct --
--------------------------
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.
+
+ procedure Break_Start is
+ begin
+ null;
+ end Break_Start;
+
end System.Standard_Library;
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