1------------------------------------------------------------------------------ 2-- -- 3-- GNAT COMPILER COMPONENTS -- 4-- -- 5-- S Y S T E M . V M S _ E X C E P T I O N _ T A B L E -- 6-- -- 7-- S p e c -- 8-- -- 9-- Copyright (C) 1997-2013, Free Software Foundation, Inc. -- 10-- -- 11-- GNAT 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-- GNAT was originally developed by the GNAT team at New York University. -- 28-- Extensive contributions were provided by Ada Core Technologies Inc. -- 29-- -- 30------------------------------------------------------------------------------ 31 32-- This package is usually used only on OpenVMS systems in the case 33-- where there is at least one Import/Export exception present. 34 35with System.Standard_Library; 36 37package System.VMS_Exception_Table is 38 39 package SSL renames System.Standard_Library; 40 41 subtype Exception_Code is System.Address; 42 43 procedure Register_VMS_Exception 44 (Code : Exception_Code; 45 E : SSL.Exception_Data_Ptr); 46 -- Register an exception in hash table mapping with a VMS condition code. 47 -- 48 -- The table is used by exception code (the personnality routine) to detect 49 -- wether a VMS exception (aka condition) is known by the Ada code. In 50 -- that case, the identity of the imported or exported exception is used 51 -- to create the occurrence. 52 53 -- LOTS more comments needed here regarding the entire scheme ??? 54 55private 56 57 -- The following functions are directly called (without import/export) in 58 -- init.c by __gnat_handle_vms_condition. 59 60 function Base_Code_In (Code : Exception_Code) return Exception_Code; 61 -- Value of Code with the severity bits masked off 62 63 function Coded_Exception (X : Exception_Code) 64 return SSL.Exception_Data_Ptr; 65 -- Given a VMS condition, find and return its allocated Ada exception 66 67end System.VMS_Exception_Table; 68