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+------------------------------------------------------------------------------
+-- --
+-- GNAT COMPILER COMPONENTS --
+-- --
+-- G N A T . E X C E P T I O N _ A C T I O N S --
+-- --
+-- B o d y --
+-- --
+-- Copyright (C) 2002-2005, Free Software Foundation, Inc. --
+-- --
+-- GNAT 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. 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 GNAT; see file COPYING. If not, write --
+-- 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, --
+-- 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. --
+-- --
+-- GNAT was originally developed by the GNAT team at New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
+-- --
+------------------------------------------------------------------------------
+
+with Ada.Unchecked_Conversion;
+with System;
+with System.Soft_Links; use System.Soft_Links;
+with System.Standard_Library; use System.Standard_Library;
+with System.Exception_Table; use System.Exception_Table;
+
+package body GNAT.Exception_Actions is
+
+ Global_Action : Exception_Action;
+ pragma Import (C, Global_Action, "__gnat_exception_actions_global_action");
+ -- Imported from Ada.Exceptions. Any change in the external name needs to
+ -- be coordinated with a-except.adb
+
+ Raise_Hook_Initialized : Boolean;
+ pragma Import
+ (Ada, Raise_Hook_Initialized, "__gnat_exception_actions_initialized");
+
+ function To_Raise_Action is new Ada.Unchecked_Conversion
+ (Exception_Action, Raise_Action);
+
+ -- ??? Would be nice to have this in System.Standard_Library
+ function To_Data is new Ada.Unchecked_Conversion
+ (Exception_Id, Exception_Data_Ptr);
+ function To_Id is new Ada.Unchecked_Conversion
+ (Exception_Data_Ptr, Exception_Id);
+
+ ----------------------------
+ -- Register_Global_Action --
+ ----------------------------
+
+ procedure Register_Global_Action (Action : Exception_Action) is
+ begin
+ Lock_Task.all;
+ Global_Action := Action;
+ Unlock_Task.all;
+ end Register_Global_Action;
+
+ ------------------------
+ -- Register_Id_Action --
+ ------------------------
+
+ procedure Register_Id_Action
+ (Id : Exception_Id;
+ Action : Exception_Action)
+ is
+ begin
+ if Id = Null_Id then
+ raise Program_Error;
+ end if;
+
+ Lock_Task.all;
+ To_Data (Id).Raise_Hook := To_Raise_Action (Action);
+ Raise_Hook_Initialized := True;
+ Unlock_Task.all;
+ end Register_Id_Action;
+
+ ---------------
+ -- Core_Dump --
+ ---------------
+
+ procedure Core_Dump (Occurrence : Exception_Occurrence) is separate;
+
+ ----------------
+ -- Name_To_Id --
+ ----------------
+
+ function Name_To_Id (Name : String) return Exception_Id is
+ begin
+ return To_Id (Internal_Exception (Name, False));
+ end Name_To_Id;
+
+ ---------------------------------
+ -- Registered_Exceptions_Count --
+ ---------------------------------
+
+ function Registered_Exceptions_Count return Natural renames
+ System.Exception_Table.Registered_Exceptions_Count;
+
+ -------------------------------
+ -- Get_Registered_Exceptions --
+ -------------------------------
+ -- This subprogram isn't an iterator to avoid concurrency problems,
+ -- since the exceptions are registered dynamically. Since we have to lock
+ -- the runtime while computing this array, this means that any callback in
+ -- an active iterator would be unable to access the runtime.
+
+ procedure Get_Registered_Exceptions
+ (List : out Exception_Id_Array;
+ Last : out Integer)
+ is
+ Ids : Exception_Data_Array (List'Range);
+ begin
+ Get_Registered_Exceptions (Ids, Last);
+
+ for L in List'First .. Last loop
+ List (L) := To_Id (Ids (L));
+ end loop;
+ end Get_Registered_Exceptions;
+
+end GNAT.Exception_Actions;