1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
------------------------------------------------------------------------------
-- --
-- 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) 1995-2009, 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;
-- 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.
procedure Break_Start is
begin
null;
end Break_Start;
end System.Standard_Library;
|
