+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS --
--- --
--- 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 --
--- --
--- B o d y --
--- --
--- $Revision: 1.1.16.1 $
--- --
--- Copyright (C) 1997-1998, Florida State University --
--- --
--- 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- --
--- 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, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
--- --
--- 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. --
--- --
--- GNARL was developed by the GNARL team at Florida State University. It is --
--- now maintained by Ada Core Technologies Inc. in cooperation with Florida --
--- State University (http://www.gnat.com). --
--- --
-------------------------------------------------------------------------------
-
--- This is an Irix (old pthread library) version of this package.
-
--- PLEASE DO NOT add any dependences on other packages.
--- This package is designed to work with or without tasking support.
-
--- 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 System.OS_Interface;
--- used for various Constants, Signal and types
-
-package body System.Interrupt_Management is
-
- use System.OS_Interface;
-
- type Interrupt_List is array (Interrupt_ID range <>) of Interrupt_ID;
-
- Exception_Interrupts : constant Interrupt_List :=
- (SIGILL,
- SIGABRT,
- SIGFPE,
- SIGSEGV,
- SIGBUS);
-
- Reserved_Interrupts : constant Interrupt_List :=
- (0,
- SIGTRAP,
- SIGKILL,
- SIGSYS,
- SIGALRM,
- SIGSTOP,
- SIGPTINTR,
- SIGPTRESCHED);
-
- Abort_Signal : constant := 48;
- --
- -- Serious MOJO: The SGI pthreads library only supports the
- -- unnamed signal number 48 for pthread_kill!
- --
-
- ----------------------
- -- Notify_Exception --
- ----------------------
-
- -- This function identifies the Ada exception to be raised using the
- -- information when the system received a synchronous signal.
- -- Since this function is machine and OS dependent, different code has to
- -- be provided for different target.
- -- On SGI, the signal handling is done is a-init.c, even when tasking is
- -- involved.
-
- ---------------------------
- -- Initialize_Interrupts --
- ---------------------------
-
- -- Nothing needs to be done on this platform.
-
- procedure Initialize_Interrupts is
- begin
- null;
- end Initialize_Interrupts;
-
-begin
- Abort_Task_Interrupt := Abort_Signal;
-
- for I in Reserved_Interrupts'Range loop
- Keep_Unmasked (Reserved_Interrupts (I)) := True;
- Reserve (Reserved_Interrupts (I)) := True;
- end loop;
-
- for I in Exception_Interrupts'Range loop
- Keep_Unmasked (Exception_Interrupts (I)) := True;
- Reserve (Reserved_Interrupts (I)) := True;
- end loop;
-
-end System.Interrupt_Management;
projects / msp430-gcc.git / blobdiff