gcc/ada/libgnarl/s-vxwork__x86.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                  GNAT 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) 1998-2020, 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 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 -- 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 x86 VxWorks version of this package
  33
  34 package System.VxWorks is
  35    pragma Preelaborate;
  36
  37    --  Floating point context record. x86 version
  38
  39    --  There are two kinds of FP_CONTEXT for this architecture, corresponding
  40    --  to newer and older processors. The type is defined in fppI86lib.h as a
  41    --  union. The form used depends on the versions of the save and restore
  42    --  routines that are selected by the user (these versions are provided in
  43    --  vxwork.ads). Since we do not examine the contents of these objects, it
  44    --  is sufficient to declare the type as of the required size: 512 bytes.
  45
  46    type FP_CONTEXT is array (1 .. 128) of Integer;
  47    for FP_CONTEXT'Alignment use 4;
  48    for FP_CONTEXT'Size use 512 * Storage_Unit;
  49    pragma Convention (C, FP_CONTEXT);
  50
  51    Num_HW_Interrupts : constant := 256;
  52    --  Number of entries in hardware interrupt vector table
  53
  54 end System.VxWorks;