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Diffstat (limited to 'gcc-4.9/gcc/ada/s-stalib.adb')
| -rw-r--r-- | gcc-4.9/gcc/ada/s-stalib.adb | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/ada/s-stalib.adb b/gcc-4.9/gcc/ada/s-stalib.adb new file mode 100644 index 000000000..1b95c6a39 --- /dev/null +++ b/gcc-4.9/gcc/ada/s-stalib.adb @@ -0,0 +1,105 @@ +------------------------------------------------------------------------------ +-- -- +-- 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) 1995-2013, 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_Warning; + +-- 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; |