obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
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1 files changed, 78 insertions, 0 deletions

diff --git a/gcc/ada/s-except.ads b/gcc/ada/s-except.ads
new file mode 100644
index 000000000..102329782
--- /dev/null
+++ b/gcc/ada/s-except.ads
@@ -0,0 +1,78 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--                    S Y S T E M . E X C E P T I O N S                     --
+--                                                                          --
+--                                 S p e c                                  --
+--                                                                          --
+--          Copyright (C) 2006-2009, 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 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.                                     --
+--                                                                          --
+-- 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.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  This package contains internal routines used as debugger helpers.
+--  It should be compiled without optimization to let debuggers inspect
+--  parameter values reliably from breakpoints on the routines.
+
+pragma Compiler_Unit;
+
+with System.Standard_Library;
+
+package System.Exceptions is
+
+   pragma Preelaborate_05;
+   --  To let Ada.Exceptions "with" us and let us "with" Standard_Library
+
+   package SSL renames System.Standard_Library;
+   --  To let some of the hooks below have formal parameters typed in
+   --  accordance with what GDB expects.
+
+   procedure Debug_Raise_Exception (E : SSL.Exception_Data_Ptr);
+   pragma Export
+     (Ada, Debug_Raise_Exception, "__gnat_debug_raise_exception");
+   --  Hook called at a "raise" point for an exception E, when it is
+   --  just about to be propagated.
+
+   procedure Debug_Unhandled_Exception (E : SSL.Exception_Data_Ptr);
+   pragma Export
+     (Ada, Debug_Unhandled_Exception, "__gnat_unhandled_exception");
+   --  Hook called during the propagation process of an exception E, as soon
+   --  as it is known to be unhandled.
+
+   procedure Debug_Raise_Assert_Failure;
+   pragma Export
+     (Ada, Debug_Raise_Assert_Failure, "__gnat_debug_raise_assert_failure");
+   --  Hook called when an assertion failed. This is used by the debugger to
+   --  intercept assertion failures, and treat them specially.
+
+   procedure Local_Raise (Excep : System.Address);
+   pragma Export (Ada, Local_Raise);
+   --  This is a dummy routine, used only by the debugger for the purpose of
+   --  logging local raise statements that were transformed into a direct goto
+   --  to the handler code. The compiler in this case generates:
+   --
+   --    Local_Raise (exception_data'address);
+   --    goto Handler
+   --
+   --  The argument is the address of the exception data
+
+end System.Exceptions;