Mercurial > hg > CbC > CbC_gcc
comparison gcc/ada/libgnat/s-stalib.adb @ 111:04ced10e8804
gcc 7
| author | kono |
|---|---|
| date | Fri, 27 Oct 2017 22:46:09 +0900 |
| parents | |
| children | 84e7813d76e9 |
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| 68:561a7518be6b | 111:04ced10e8804 |
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| 1 ------------------------------------------------------------------------------ | |
| 2 -- -- | |
| 3 -- GNAT COMPILER COMPONENTS -- | |
| 4 -- -- | |
| 5 -- S Y S T E M . S T A N D A R D _ L I B R A R Y -- | |
| 6 -- -- | |
| 7 -- B o d y -- | |
| 8 -- -- | |
| 9 -- Copyright (C) 1995-2017, 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 | |
| 32 pragma Compiler_Unit_Warning; | |
| 33 | |
| 34 -- The purpose of this body is simply to ensure that the two with'ed units | |
| 35 -- are properly included in the link. They are not with'ed from the spec | |
| 36 -- of System.Standard_Library, since this would cause order of elaboration | |
| 37 -- problems (Elaborate_Body would have the same problem). | |
| 38 | |
| 39 pragma Polling (Off); | |
| 40 -- We must turn polling off for this unit, because otherwise we get | |
| 41 -- elaboration circularities with Ada.Exceptions if polling is on. | |
| 42 | |
| 43 pragma Warnings (Off); | |
| 44 -- Kill warnings from unused withs. These unused with's are here to make | |
| 45 -- sure the relevant units are loaded and properly elaborated. | |
| 46 | |
| 47 with System.Soft_Links; | |
| 48 -- Referenced directly from generated code using external symbols so it | |
| 49 -- must always be present in a build, even if no unit has a direct with | |
| 50 -- of this unit. Also referenced from exception handling routines. | |
| 51 -- This is needed for programs that don't use exceptions explicitly but | |
| 52 -- direct calls to Ada.Exceptions are generated by gigi (for example, | |
| 53 -- by calling __gnat_raise_constraint_error directly). | |
| 54 | |
| 55 with System.Memory; | |
| 56 -- Referenced directly from generated code using external symbols, so it | |
| 57 -- must always be present in a build, even if no unit has a direct with | |
| 58 -- of this unit. | |
| 59 | |
| 60 pragma Warnings (On); | |
| 61 | |
| 62 package body System.Standard_Library is | |
| 63 | |
| 64 Runtime_Finalized : Boolean := False; | |
| 65 -- Set to True when adafinal is called. Used to ensure that subsequent | |
| 66 -- calls to adafinal after the first have no effect. | |
| 67 | |
| 68 -------------------------- | |
| 69 -- Abort_Undefer_Direct -- | |
| 70 -------------------------- | |
| 71 | |
| 72 procedure Abort_Undefer_Direct is | |
| 73 begin | |
| 74 System.Soft_Links.Abort_Undefer.all; | |
| 75 end Abort_Undefer_Direct; | |
| 76 | |
| 77 -------------- | |
| 78 -- Adafinal -- | |
| 79 -------------- | |
| 80 | |
| 81 procedure Adafinal is | |
| 82 begin | |
| 83 if not Runtime_Finalized then | |
| 84 Runtime_Finalized := True; | |
| 85 System.Soft_Links.Adafinal.all; | |
| 86 end if; | |
| 87 end Adafinal; | |
| 88 | |
| 89 ----------------- | |
| 90 -- Break_Start -- | |
| 91 ----------------- | |
| 92 | |
| 93 procedure Break_Start; | |
| 94 pragma Export (C, Break_Start, "__gnat_break_start"); | |
| 95 -- This is a dummy procedure that is called at the start of execution. | |
| 96 -- Its sole purpose is to provide a well defined point for the placement | |
| 97 -- of a main program breakpoint. This is not used anymore but kept for | |
| 98 -- bootstrapping issues (still referenced by old gnatbind generated files). | |
| 99 | |
| 100 procedure Break_Start is | |
| 101 begin | |
| 102 null; | |
| 103 end Break_Start; | |
| 104 | |
| 105 end System.Standard_Library; |