| ------------------------------------------------------------------------------ |
| -- -- |
| -- 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) 1995-2005 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. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| -- 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 |
| |
| 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 explicitely 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. |
| |
| procedure Break_Start is |
| begin |
| null; |
| end Break_Start; |
| |
| end System.Standard_Library; |
