gcc/ada/5wintman.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS               --
   4 --                                                                          --
   5 --           S Y S T E M . I N T E R R U P T _ M A N A G E M E N T          --
   6 --                                                                          --
   7 --                                  B o d y                                 --
   8 --                                                                          --
   9 --          Copyright (C) 1991-2000 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 ------------------------------------------------------------------------------
  33
  34 --  This is the NT version of this package
  35
  36 --  This file performs the system-dependent translation between machine
  37 --  exceptions and the Ada exceptions, if any, that should be raised when they
  38 --  occur.
  39
  40 --  PLEASE DO NOT add any dependences on other packages.
  41 --  This package is designed to work with or without tasking support.
  42
  43 --  See the other warnings in the package specification before making any
  44 --  modifications to this file.
  45
  46 --  Make a careful study of all signals available under the OS, to see which
  47 --  need to be reserved, kept always unmasked, or kept always unmasked. Be on
  48 --  the lookout for special signals that may be used by the thread library.
  49
  50 with System.OS_Interface; use System.OS_Interface;
  51
  52 package body System.Interrupt_Management is
  53
  54    ---------------------------
  55    -- Initialize_Interrupts --
  56    ---------------------------
  57
  58    --  Nothing needs to be done on this platform.
  59
  60    procedure Initialize_Interrupts is
  61    begin
  62       null;
  63    end Initialize_Interrupts;
  64
  65 begin
  66    --  "Reserve" all the interrupts, except those that are explicitely defined
  67
  68    for J in Interrupt_ID'Range loop
  69       Reserve (J) := True;
  70    end loop;
  71
  72    Reserve (SIGINT)  := False;
  73    Reserve (SIGILL)  := False;
  74    Reserve (SIGABRT) := False;
  75    Reserve (SIGFPE)  := False;
  76    Reserve (SIGSEGV) := False;
  77    Reserve (SIGTERM) := False;
  78 end System.Interrupt_Management;