------------------------------------------------------------------------------ -- -- -- 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;