File : s-macres-p2020.adb
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT RUN-TIME COMPONENTS --
4 -- --
5 -- S Y S T E M . M A C H I N E _ R E S E T --
6 -- --
7 -- B o d y --
8 -- --
9 -- Copyright (C) 2011-2016, 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 -- --
19 -- --
20 -- --
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 with System.BB.Board_Parameters;
33
34 with Interfaces;
35
36 package body System.Machine_Reset is
37 procedure Os_Exit (Status : Integer);
38 pragma No_Return (Os_Exit);
39 pragma Export (Ada, Os_Exit, "_exit");
40 -- Shutdown or restart the board
41
42 procedure Os_Abort;
43 pragma No_Return (Os_Abort);
44 pragma Export (Ada, Os_Abort, "abort");
45 -- Likewise
46
47 --------------
48 -- Os_Abort --
49 --------------
50
51 procedure Os_Abort is
52 begin
53 Os_Exit (1);
54 end Os_Abort;
55
56 -------------
57 -- Os_Exit --
58 -------------
59
60 procedure Os_Exit (Status : Integer) is
61 pragma Unreferenced (Status);
62 -- The parameter is just for ISO-C compatibility
63
64 Rstcr : Interfaces.Unsigned_32;
65 for Rstcr'Address use
66 System.BB.Board_Parameters.CCSRBAR + 16#E_00B0#;
67 pragma Import (Ada, Rstcr);
68 pragma Volatile (Rstcr);
69
70 begin
71 Rstcr := 2;
72 loop
73 null;
74 end loop;
75 end Os_Exit;
76
77 ----------
78 -- Stop --
79 ----------
80
81 procedure Stop is
82 begin
83 Os_Exit (0);
84 end Stop;
85 end System.Machine_Reset;