-- --
-- B o d y --
-- --
--- Copyright (C) 1992-2003 Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2011, 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- --
+-- ware Foundation; either version 3, 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, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
+-- or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
--- 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. --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception, --
+-- version 3.1, as published by the Free Software Foundation. --
+-- --
+-- You should have received a copy of the GNU General Public License and --
+-- a copy of the GCC Runtime Library Exception along with this program; --
+-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
+-- <http://www.gnu.org/licenses/>. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-with Unchecked_Conversion;
+with Ada.Unchecked_Conversion;
pragma Warnings (Off);
with Ada.Exceptions.Last_Chance_Handler;
pragma Export
(Ada, Raise_Hook_Initialized, "__gnat_exception_actions_initialized");
- procedure Last_Chance_Handler
- (Except : Exception_Occurrence);
- pragma Import
- (C, Last_Chance_Handler, "__gnat_last_chance_handler");
+ procedure Last_Chance_Handler (Except : Exception_Occurrence);
+ pragma Import (C, Last_Chance_Handler, "__gnat_last_chance_handler");
pragma No_Return (Last_Chance_Handler);
-- Users can replace the default version of this routine,
-- Ada.Exceptions.Last_Chance_Handler.
- function To_Action is new Unchecked_Conversion
+ function To_Action is new Ada.Unchecked_Conversion
(Raise_Action, Exception_Action);
-----------------------
-- latter case because Notify_Handled_Exception may be called for an
-- actually unhandled occurrence in the Front-End-SJLJ case.
- procedure To_Stderr (S : String);
- pragma Export (Ada, To_Stderr, "__gnat_to_stderr");
- -- Little routine to output string to stderr that is also used
- -- in the tasking run time.
-
- ---------------------------------
- -- Debugger Interface Routines --
- ---------------------------------
-
- -- The routines here are null routines that normally have no effect.
- -- They are provided for the debugger to place breakpoints on their
- -- entry points to get control on an exception.
-
- procedure Unhandled_Exception;
- pragma Export (C, Unhandled_Exception, "__gnat_unhandled_exception");
- -- Hook for GDB to support "break exception unhandled".
-
- -- For "break exception", GDB uses __gnat_raise_nodefer_with_msg, which
- -- is not in this section because it fullfills other purposes than a mere
- -- debugger interface.
-
--------------------------------
-- Import Run-Time C Routines --
--------------------------------
-- configuration. Take care not to output information about internal
-- exceptions.
- -- ??? In the Front-End ZCX case, the traceback entries we have at this
- -- point only include the ones we stored while walking up the stack *up
- -- to the handler*. All the frames above the subprogram in which the
- -- handler is found are missing.
-
if not Excep.Id.Not_Handled_By_Others
and then
- (Exception_Trace = Every_Raise
- or else (Exception_Trace = Unhandled_Raise and then Is_Unhandled))
+ (Exception_Trace = Every_Raise
+ or else (Exception_Trace = Unhandled_Raise and then Is_Unhandled))
then
+ -- Exception trace messages need to be protected when several tasks
+ -- can issue them at the same time.
+
+ Lock_Task.all;
To_Stderr (Nline);
if Is_Unhandled then
To_Stderr ("Exception raised");
To_Stderr (Nline);
To_Stderr (Tailored_Exception_Information (Excep.all));
+ Unlock_Task.all;
end if;
-- Call the user-specific actions
--------------------------------
procedure Notify_Unhandled_Exception is
+ Excep : constant EOA := Get_Current_Excep.all;
+
begin
- Notify_Exception (Get_Current_Excep.all, Is_Unhandled => True);
- Unhandled_Exception;
- end Notify_Unhandled_Exception;
+ -- Check whether there is any termination handler to be executed for
+ -- the environment task, and execute it if needed. Here we handle both
+ -- the Abnormal and Unhandled_Exception task termination. Normal
+ -- task termination routine is executed elsewhere (either in the
+ -- Task_Wrapper or in the Adafinal routine for the environment task).
- -------------------------
- -- Unhandled_Exception --
- -------------------------
+ Task_Termination_Handler.all (Excep.all);
- procedure Unhandled_Exception is
- begin
- null;
- end Unhandled_Exception;
+ Notify_Exception (Excep, Is_Unhandled => True);
+ Debug_Unhandled_Exception (SSL.Exception_Data_Ptr (Excep.Id));
+ end Notify_Unhandled_Exception;
-----------------------------------
-- Unhandled_Exception_Terminate --
-----------------------------------
- type int is new Integer;
-
procedure Unhandled_Exception_Terminate is
Excep : constant EOA := Save_Occurrence (Get_Current_Excep.all.all);
-- This occurrence will be used to display a message after finalization.
Last_Chance_Handler (Excep.all);
end Unhandled_Exception_Terminate;
- ---------------
- -- To_Stderr --
- ---------------
-
- procedure To_Stderr (S : String) is
- procedure put_char_stderr (C : int);
- pragma Import (C, put_char_stderr, "put_char_stderr");
-
- begin
- for J in 1 .. S'Length loop
- if S (J) /= ASCII.CR then
- put_char_stderr (Character'Pos (S (J)));
- end if;
- end loop;
- end To_Stderr;
-
-
------------------------------------
-- Handling GNAT.Exception_Traces --
------------------------------------
-- the termination routine. Avoiding the second output is possible but so
-- far has been considered undesirable. It would mean changing the order
-- of outputs between the two runs with or without exception traces, while
- -- it seems preferrable to only have additional outputs in the former
+ -- it seems preferable to only have additional outputs in the former
-- case.
end Exception_Traces;
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