106 lines
4.8 KiB
Ada
106 lines
4.8 KiB
Ada
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------------------------------------------------------------------------------
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-- --
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-- GNAT COMPILER COMPONENTS --
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-- --
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-- S Y S T E M . S T A N D A R D _ L I B R A R Y --
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-- --
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-- B o d y --
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-- --
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-- Copyright (C) 1995-2013, Free Software Foundation, Inc. --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 3, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. --
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-- --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception, --
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-- version 3.1, as published by the Free Software Foundation. --
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-- --
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-- You should have received a copy of the GNU General Public License and --
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-- a copy of the GCC Runtime Library Exception along with this program; --
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-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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-- <http://www.gnu.org/licenses/>. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc. --
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-- --
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------------------------------------------------------------------------------
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pragma Compiler_Unit_Warning;
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-- The purpose of this body is simply to ensure that the two with'ed units
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-- are properly included in the link. They are not with'ed from the spec
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-- of System.Standard_Library, since this would cause order of elaboration
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-- problems (Elaborate_Body would have the same problem).
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pragma Polling (Off);
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-- We must turn polling off for this unit, because otherwise we get
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-- elaboration circularities with Ada.Exceptions if polling is on.
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pragma Warnings (Off);
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-- Kill warnings from unused withs. These unused with's are here to make
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-- sure the relevant units are loaded and properly elaborated.
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with System.Soft_Links;
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-- Referenced directly from generated code using external symbols so it
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-- must always be present in a build, even if no unit has a direct with
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-- of this unit. Also referenced from exception handling routines.
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-- This is needed for programs that don't use exceptions explicitly but
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-- direct calls to Ada.Exceptions are generated by gigi (for example,
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-- by calling __gnat_raise_constraint_error directly).
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with System.Memory;
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-- Referenced directly from generated code using external symbols, so it
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-- must always be present in a build, even if no unit has a direct with
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-- of this unit.
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pragma Warnings (On);
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package body System.Standard_Library is
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Runtime_Finalized : Boolean := False;
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-- Set to True when adafinal is called. Used to ensure that subsequent
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-- calls to adafinal after the first have no effect.
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--------------------------
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-- Abort_Undefer_Direct --
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--------------------------
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procedure Abort_Undefer_Direct is
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begin
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System.Soft_Links.Abort_Undefer.all;
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end Abort_Undefer_Direct;
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--------------
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-- Adafinal --
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--------------
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procedure Adafinal is
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begin
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if not Runtime_Finalized then
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Runtime_Finalized := True;
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System.Soft_Links.Adafinal.all;
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end if;
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end Adafinal;
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-----------------
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-- Break_Start --
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-----------------
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procedure Break_Start;
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pragma Export (C, Break_Start, "__gnat_break_start");
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-- This is a dummy procedure that is called at the start of execution.
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-- Its sole purpose is to provide a well defined point for the placement
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-- of a main program breakpoint. This is not used anymore but kept for
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-- bootstrapping issues (still referenced by old gnatbind generated files).
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procedure Break_Start is
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begin
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null;
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end Break_Start;
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end System.Standard_Library;
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