------------------------------------------------------------------------------
-- --
--- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS --
+-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
-- --
-- I N T E R F A C E S . V X W O R K S --
-- --
-- S p e c --
-- --
--- Copyright (C) 1999 - 2002 Ada Core Technologies, Inc. --
+-- Copyright (C) 1999-2005, AdaCore --
-- --
-- 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- --
-- 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. --
+-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
+-- Boston, MA 02110-1301, 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, --
-- 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). --
+-- GNARL was developed by the GNARL team at Florida State University. --
+-- Extensive contributions were provided by Ada Core Technologies, Inc. --
-- --
------------------------------------------------------------------------------
-- In particular, it interfaces with the VxWorks hardware interrupt
-- facilities, allowing the use of low-latency direct-vectored
-- interrupt handlers. Note that such handlers have a variety of
--- restrictions regarding system calls. Less restrictive, but higher-
--- latency handlers can be written using Ada protected procedures,
--- Ada 83 style interrupt entries, or by signalling an Ada task
--- from within an interrupt handler using a binary semaphore as
--- described in the VxWorks Programmer's Manual
+-- restrictions regarding system calls and language constructs. In particular,
+-- the use of exception handlers and functions returning variable-length
+-- objects cannot be used. Less restrictive, but higher-latency handlers can
+-- be written using Ada protected procedures, Ada 83 style interrupt entries,
+-- or by signalling an Ada task from within an interrupt handler using a
+-- binary semaphore as described in the VxWorks Programmer's Manual.
--
-- For complete documentation of the operations in this package, please
--- consult the VxWorks Programmer's Manual and VxWorks Reference Manual
+-- consult the VxWorks Programmer's Manual and VxWorks Reference Manual.
with System.VxWorks;
package Interfaces.VxWorks is
- pragma Preelaborate (VxWorks);
+ pragma Preelaborate;
------------------------------------------------------------------------
-- Here is a complete example that shows how to handle the Interrupt 0x14
-- user handler. The routine generates a wrapper around the user
-- handler to save and restore context
+ function intContext return int;
+ -- Binding to the C routine intContext. This function returns 1 only
+ -- if the current execution state is in interrupt context.
+
function intVecGet
(Vector : Interrupt_Vector) return VOIDFUNCPTR;
-- Binding to the C routine intVecGet. Use this to get the
-- Target-dependent floating point context type
pragma Import (C, intConnect, "intConnect");
+ pragma Import (C, intContext, "intContext");
pragma Import (C, intVecGet, "intVecGet");
pragma Import (C, intVecSet, "intVecSet");
pragma Import (C, INUM_TO_IVEC, "__gnat_inum_to_ivec");
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