Mercurial > hg > CbC > CbC_gcc
diff gcc/ada/libgnat/s-elaall.adb @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | |
children | 84e7813d76e9 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/ada/libgnat/s-elaall.adb Fri Oct 27 22:46:09 2017 +0900 @@ -0,0 +1,72 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME COMPONENTS -- +-- -- +-- S Y S T E M . E L A B O R A T I O N _ A L L O C A T O R S -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 2014-2017, 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. -- +-- -- +------------------------------------------------------------------------------ + +package body System.Elaboration_Allocators is + + Elaboration_In_Progress : Boolean; + pragma Atomic (Elaboration_In_Progress); + -- Flag to show if elaboration is active. We don't attempt to initialize + -- this because we want to be sure it gets reset if we are in a multiple + -- elaboration situation of some kind. Make it atomic to prevent race + -- conditions of any kind (not clearly necessary, but harmless!) + + ------------------------------ + -- Check_Standard_Allocator -- + ------------------------------ + + procedure Check_Standard_Allocator is + begin + if not Elaboration_In_Progress then + raise Program_Error with + "standard allocator after elaboration is complete is not allowed " + & "(No_Standard_Allocators_After_Elaboration restriction active)"; + end if; + end Check_Standard_Allocator; + + ----------------------------- + -- Mark_End_Of_Elaboration -- + ----------------------------- + + procedure Mark_End_Of_Elaboration is + begin + Elaboration_In_Progress := False; + end Mark_End_Of_Elaboration; + + ------------------------------- + -- Mark_Start_Of_Elaboration -- + ------------------------------- + + procedure Mark_Start_Of_Elaboration is + begin + Elaboration_In_Progress := True; + end Mark_Start_Of_Elaboration; + +end System.Elaboration_Allocators;