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1 ------------------------------------------------------------------------------
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2 -- --
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3 -- GNAT RUN-TIME COMPONENTS --
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4 -- --
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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 --
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6 -- --
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7 -- B o d y --
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8 -- --
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9 -- Copyright (C) 2014-2017, Free Software Foundation, Inc. --
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10 -- --
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11 -- GNAT is free software; you can redistribute it and/or modify it under --
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12 -- terms of the GNU General Public License as published by the Free Soft- --
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13 -- ware Foundation; either version 3, or (at your option) any later ver- --
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14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
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17 -- --
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18 -- As a special exception under Section 7 of GPL version 3, you are granted --
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19 -- additional permissions described in the GCC Runtime Library Exception, --
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20 -- version 3.1, as published by the Free Software Foundation. --
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21 -- --
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22 -- You should have received a copy of the GNU General Public License and --
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23 -- a copy of the GCC Runtime Library Exception along with this program; --
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24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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25 -- <http://www.gnu.org/licenses/>. --
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26 -- --
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27 -- GNAT was originally developed by the GNAT team at New York University. --
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28 -- Extensive contributions were provided by Ada Core Technologies Inc. --
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29 -- --
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30 ------------------------------------------------------------------------------
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31
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32 package body System.Elaboration_Allocators is
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33
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34 Elaboration_In_Progress : Boolean;
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35 pragma Atomic (Elaboration_In_Progress);
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36 -- Flag to show if elaboration is active. We don't attempt to initialize
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37 -- this because we want to be sure it gets reset if we are in a multiple
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38 -- elaboration situation of some kind. Make it atomic to prevent race
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39 -- conditions of any kind (not clearly necessary, but harmless!)
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40
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41 ------------------------------
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42 -- Check_Standard_Allocator --
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43 ------------------------------
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44
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45 procedure Check_Standard_Allocator is
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46 begin
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47 if not Elaboration_In_Progress then
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48 raise Program_Error with
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49 "standard allocator after elaboration is complete is not allowed "
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50 & "(No_Standard_Allocators_After_Elaboration restriction active)";
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51 end if;
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52 end Check_Standard_Allocator;
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53
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54 -----------------------------
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55 -- Mark_End_Of_Elaboration --
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56 -----------------------------
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57
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58 procedure Mark_End_Of_Elaboration is
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59 begin
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60 Elaboration_In_Progress := False;
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61 end Mark_End_Of_Elaboration;
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62
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63 -------------------------------
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64 -- Mark_Start_Of_Elaboration --
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65 -------------------------------
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66
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67 procedure Mark_Start_Of_Elaboration is
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68 begin
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69 Elaboration_In_Progress := True;
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70 end Mark_Start_Of_Elaboration;
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71
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72 end System.Elaboration_Allocators;
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