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[official-gcc.git] / gcc / ada / s-vxwork-x86.ads
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1 ------------------------------------------------------------------------------
2 -- --
3 -- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS --
4 -- --
5 -- S Y S T E M . V X W O R K S --
6 -- --
7 -- S p e c --
8 -- --
9 -- Copyright (C) 1998-2004 Free Software Foundation, Inc. --
10 -- --
11 -- GNARL 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 2, or (at your option) any later ver- --
14 -- sion. GNARL 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. See the GNU General Public License --
17 -- for more details. You should have received a copy of the GNU General --
18 -- Public License distributed with GNARL; see file COPYING. If not, write --
19 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
20 -- MA 02111-1307, USA. --
21 -- --
22 -- As a special exception, if other files instantiate generics from this --
23 -- unit, or you link this unit with other files to produce an executable, --
24 -- this unit does not by itself cause the resulting executable to be --
25 -- covered by the GNU General Public License. This exception does not --
26 -- however invalidate any other reasons why the executable file might be --
27 -- covered by the GNU Public License. --
28 -- --
29 -- GNARL was developed by the GNARL team at Florida State University. --
30 -- Extensive contributions were provided by Ada Core Technologies, Inc. --
31 -- --
32 ------------------------------------------------------------------------------
34 -- This is the x86 VxWorks version of this package
36 package System.VxWorks is
37 pragma Preelaborate (System.VxWorks);
39 -- Floating point context record. x86 version
41 -- There are two kinds of FP_CONTEXT for this architecture, corresponding
42 -- to newer and older processors. The type is defined in fppI86lib.h as a
43 -- union. The form used depends on the versions of the save and restore
44 -- routines that are selected by the user (these versions are provided in
45 -- vxwork.ads). Since we do not examine the contents of these objects, it
46 -- is sufficient to declare the type as of the required size: 512 bytes.
48 type FP_CONTEXT is array (1 .. 128) of Integer;
49 for FP_CONTEXT'Alignment use 4;
50 for FP_CONTEXT'Size use 512 * Storage_Unit;
51 pragma Convention (C, FP_CONTEXT);
53 Num_HW_Interrupts : constant := 256;
54 -- Number of entries in hardware interrupt vector table
56 end System.VxWorks;