| ------------------------------------------------------------------------------ |
| -- -- |
| -- 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; |
