-- --
-- B o d y --
-- --
--- Copyright (C) 1992-2005 Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2009, Free Software Foundation, Inc. --
-- --
-- GNARL is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
--- ware Foundation; either version 2, or (at your option) any later ver- --
--- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
+-- ware Foundation; either version 3, or (at your option) any later ver- --
+-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
--- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
--- for more details. You should have received a copy of the GNU General --
--- Public License distributed with GNARL; see file COPYING. If not, write --
--- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
--- Boston, MA 02110-1301, USA. --
+-- or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
--- As a special exception, if other files instantiate generics from this --
--- unit, or you link this unit with other files to produce an executable, --
--- this unit does not by itself cause the resulting executable to be --
--- covered by the GNU General Public License. This exception does not --
--- however invalidate any other reasons why the executable file might be --
--- covered by the GNU Public License. --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception, --
+-- version 3.1, as published by the Free Software Foundation. --
+-- --
+-- You should have received a copy of the GNU General Public License and --
+-- a copy of the GCC Runtime Library Exception along with this program; --
+-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
+-- <http://www.gnu.org/licenses/>. --
-- --
-- GNARL was developed by the GNARL team at Florida State University. --
-- Extensive contributions were provided by Ada Core Technologies, Inc. --
-- --
------------------------------------------------------------------------------
--- This is the VxWorks version of this package.
-
--- Make a careful study of all signals available under the OS,
--- to see which need to be reserved, kept always unmasked,
--- or kept always unmasked.
--- Be on the lookout for special signals that
--- may be used by the thread library.
-
-with Interfaces.C;
+-- This is the VxWorks version of this package
-with System.OS_Interface;
--- used for various Constants, Signal and types
+-- Make a careful study of all signals available under the OS, to see which
+-- need to be reserved, kept always unmasked, or kept always unmasked. Be on
+-- the lookout for special signals that may be used by the thread library.
package body System.Interrupt_Management is
Exception_Action : aliased struct_sigaction;
-- Keep this variable global so that it is initialized only once
- procedure Map_And_Raise_Exception (signo : Signal);
- pragma Import (C, Map_And_Raise_Exception, "__gnat_map_signal");
+ procedure Notify_Exception
+ (signo : Signal;
+ siginfo : System.Address;
+ sigcontext : System.Address);
+ pragma Import (C, Notify_Exception, "__gnat_error_handler");
-- Map signal to Ada exception and raise it. Different versions
-- of VxWorks need different mappings.
function State (Int : Interrupt_ID) return Character;
pragma Import (C, State, "__gnat_get_interrupt_state");
- -- Get interrupt state. Defined in init.c
- -- The input argument is the interrupt number,
- -- and the result is one of the following:
+ -- Get interrupt state. Defined in init.c The input argument is the
+ -- interrupt number, and the result is one of the following:
Runtime : constant Character := 'r';
Default : constant Character := 's';
-- 's' Interrupt_State pragma set state to System (use "default"
-- system handler)
- procedure Notify_Exception (signo : Signal);
- -- Identify the Ada exception to be raised using
- -- the information when the system received a synchronous signal.
-
- ----------------------
- -- Notify_Exception --
- ----------------------
-
- procedure Notify_Exception (signo : Signal) is
- Mask : aliased sigset_t;
-
- Result : int;
- pragma Unreferenced (Result);
-
- begin
- Result := pthread_sigmask (SIG_SETMASK, null, Mask'Unchecked_Access);
- Result := sigdelset (Mask'Access, signo);
- Result := pthread_sigmask (SIG_SETMASK, Mask'Unchecked_Access, null);
-
- Map_And_Raise_Exception (signo);
- end Notify_Exception;
-
---------------------------
-- Initialize_Interrupts --
---------------------------
----------------
Initialized : Boolean := False;
+ -- Set to True once Initialize is called, further calls have no effect
procedure Initialize is
mask : aliased sigset_t;
Result : int;
+
begin
if Initialized then
return;
-- Change this if you want to use another signal for task abort.
-- SIGTERM might be a good one.
- Abort_Task_Signal := SIGABRT;
+ Abort_Task_Interrupt := SIGABRT;
Exception_Action.sa_handler := Notify_Exception'Address;
- Exception_Action.sa_flags := SA_ONSTACK;
+ Exception_Action.sa_flags := SA_ONSTACK + SA_SIGINFO;
Result := sigemptyset (mask'Access);
pragma Assert (Result = 0);
-- The abort signal must also be unmasked
- Keep_Unmasked (Abort_Task_Signal) := True;
+ Keep_Unmasked (Abort_Task_Interrupt) := True;
end Initialize;
end System.Interrupt_Management;
OSDN Git Service
