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',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 64 insertions, 0 deletions

diff --git a/gcc/ada/back_end.ads b/gcc/ada/back_end.ads
new file mode 100644
index 000000000..93e1ba643
--- /dev/null
+++ b/gcc/ada/back_end.ads
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+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--                             B A C K _ E N D                              --
+--                                                                          --
+--                                 S p e c                                  --
+--                                                                          --
+--          Copyright (C) 1992-2010, 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.  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 COPYING3.  If not, go to --
+-- http://www.gnu.org/licenses for a complete copy of the license.          --
+--                                                                          --
+-- GNAT was originally developed  by the GNAT team at  New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  Call the back end with all the information needed. Also contains other
+--  back-end specific interfaces required by the front end.
+
+package Back_End is
+
+   type Back_End_Mode_Type is (
+      Generate_Object,
+      --  Full back end operation with object file generation
+
+      Declarations_Only,
+      --  Partial back end operation with no object file generation. In this
+      --  mode the only useful action performed by gigi is to process all
+      --  declarations issuing any error messages (in particular those to
+      --  do with rep clauses), and to back annotate representation info.
+
+      Skip);
+      --  Back end call is skipped (syntax only, or errors found)
+
+   pragma Convention (C, Back_End_Mode_Type);
+   for Back_End_Mode_Type use (0, 1, 2);
+
+   procedure Call_Back_End (Mode : Back_End_Mode_Type);
+   --  Call back end, i.e. make call to driver traversing the tree and
+   --  outputting code. This call is made with all tables locked.
+   --  The back end is responsible for unlocking any tables it may need
+   --  to change, and locking them again before returning.
+
+   procedure Scan_Compiler_Arguments;
+   --  Acquires command-line parameters passed to the compiler and processes
+   --  them. Calls Scan_Front_End_Switches for any front-end switches found.
+   --
+   --  The processing of arguments is private to the back end, since the way
+   --  of acquiring the arguments as well as the set of allowable back end
+   --  switches is different depending on the particular back end being used.
+   --
+   --  Any processed switches that influence the result of a compilation must
+   --  be added to the Compilation_Arguments table.
+
+end Back_End;