File : s-interr-raven-vxworks.adb
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
4 -- --
5 -- S Y S T E M . I N T E R R U P T S --
6 -- --
7 -- B o d y --
8 -- --
9 -- Copyright (C) 2001-2013, AdaCore --
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 -- GNARL was developed by the GNARL team at Florida State University. --
28 -- Extensive contributions were provided by Ada Core Technologies, Inc. --
29 -- --
30 ------------------------------------------------------------------------------
31
32 -- This is the VxWorks/Cert version of this package
33
34 with Interfaces.VxWorks;
35 with System.OS_Interface; use System.OS_Interface;
36 with System.Tasking.Restricted.Stages;
37
38 package body System.Interrupts is
39
40 -----------------------
41 -- Local Subprograms --
42 -----------------------
43
44 type Handlers_Array is array (Interrupt_ID) of Parameterless_Handler;
45 pragma Suppress_Initialization (Handlers_Array);
46
47 User_Handlers : Handlers_Array := (others => null);
48 -- The actual handlers
49
50 procedure Install_Handler (Interrupt : Interrupt_ID);
51 -- Install the runtime umbrella handler for a vectored hardware interrupt
52
53 procedure Default_Handler (Interrupt : System.Address);
54 -- Default interrupt handler
55
56 ---------------------
57 -- Default_Handler --
58 ---------------------
59
60 procedure Default_Handler (Interrupt : System.Address) is
61 begin
62 User_Handlers (Interrupt_ID (Interrupt)).all;
63 end Default_Handler;
64
65 ---------------------
66 -- Install_Handler --
67 ---------------------
68
69 procedure Install_Handler (Interrupt : Interrupt_ID) is
70 Stat : Interfaces.VxWorks.STATUS;
71 pragma Unreferenced (Stat);
72 begin
73 Stat := Interfaces.VxWorks.intConnect
74 (Interfaces.VxWorks.Interrupt_Vector (System.Address (Interrupt)),
75 Default_Handler'Access,
76 System.Address (Interrupt));
77 end Install_Handler;
78
79 ---------------------------------
80 -- Install_Restricted_Handlers --
81 ---------------------------------
82
83 procedure Install_Restricted_Handlers
84 (Prio : Any_Priority;
85 Handlers : Handler_Array)
86 is
87 pragma Unreferenced (Prio);
88 use System.Tasking.Restricted.Stages;
89
90 begin
91 for J in Handlers'Range loop
92
93 -- Copy the handler in the table that contains the user handlers
94
95 User_Handlers (Handlers (J).Interrupt) := Handlers (J).Handler;
96
97 -- Install the handler now, unless attachment is deferred because of
98 -- sequential partition elaboration policy.
99
100 if Partition_Elaboration_Policy /= 'S' then
101 Install_Handler (Handlers (J).Interrupt);
102 end if;
103 end loop;
104 end Install_Restricted_Handlers;
105
106 --------------------------------------------
107 -- Install_Restricted_Handlers_Sequential --
108 --------------------------------------------
109
110 procedure Install_Restricted_Handlers_Sequential is
111 begin
112 for J in User_Handlers'Range loop
113 if User_Handlers (J) /= null then
114 Install_Handler (J);
115 end if;
116 end loop;
117 end Install_Restricted_Handlers_Sequential;
118
119 end System.Interrupts;