1------------------------------------------------------------------------------ 2-- -- 3-- GNAT RUN-TIME COMPONENTS -- 4-- -- 5-- 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 -- 6-- -- 7-- B o d y -- 8-- -- 9-- Copyright (C) 2014-2018, Free Software Foundation, Inc. -- 10-- -- 11-- GNAT is free software; you can redistribute it and/or modify it under -- 12-- terms of the GNU General Public License as published by the Free Soft- -- 13-- ware Foundation; either version 3, or (at your option) any later ver- -- 14-- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- 15-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- 16-- or FITNESS FOR A PARTICULAR PURPOSE. -- 17-- -- 18-- As a special exception under Section 7 of GPL version 3, you are granted -- 19-- additional permissions described in the GCC Runtime Library Exception, -- 20-- version 3.1, as published by the Free Software Foundation. -- 21-- -- 22-- You should have received a copy of the GNU General Public License and -- 23-- a copy of the GCC Runtime Library Exception along with this program; -- 24-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- 25-- <http://www.gnu.org/licenses/>. -- 26-- -- 27-- GNAT was originally developed by the GNAT team at New York University. -- 28-- Extensive contributions were provided by Ada Core Technologies Inc. -- 29-- -- 30------------------------------------------------------------------------------ 31 32package body System.Elaboration_Allocators is 33 34 Elaboration_In_Progress : Boolean; 35 pragma Atomic (Elaboration_In_Progress); 36 -- Flag to show if elaboration is active. We don't attempt to initialize 37 -- this because we want to be sure it gets reset if we are in a multiple 38 -- elaboration situation of some kind. Make it atomic to prevent race 39 -- conditions of any kind (not clearly necessary, but harmless!) 40 41 ------------------------------ 42 -- Check_Standard_Allocator -- 43 ------------------------------ 44 45 procedure Check_Standard_Allocator is 46 begin 47 if not Elaboration_In_Progress then 48 raise Program_Error with 49 "standard allocator after elaboration is complete is not allowed " 50 & "(No_Standard_Allocators_After_Elaboration restriction active)"; 51 end if; 52 end Check_Standard_Allocator; 53 54 ----------------------------- 55 -- Mark_End_Of_Elaboration -- 56 ----------------------------- 57 58 procedure Mark_End_Of_Elaboration is 59 begin 60 Elaboration_In_Progress := False; 61 end Mark_End_Of_Elaboration; 62 63 ------------------------------- 64 -- Mark_Start_Of_Elaboration -- 65 ------------------------------- 66 67 procedure Mark_Start_Of_Elaboration is 68 begin 69 Elaboration_In_Progress := True; 70 end Mark_Start_Of_Elaboration; 71 72end System.Elaboration_Allocators; 73