New Language: Ada

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@45954 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 69 insertions, 0 deletions

diff --git a/gcc/ada/back_end.ads b/gcc/ada/back_end.ads
new file mode 100644
index 00000000000..60da9aebdd5
--- /dev/null
+++ b/gcc/ada/back_end.ads
@@ -0,0 +1,69 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--                             B A C K _ E N D                              --
+--                                                                          --
+--                                 S p e c                                  --
+--                                                                          --
+--                            $Revision: 1.7 $
+--                                                                          --
+--          Copyright (C) 1992-2001 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,  59 Temple Place - Suite 330,  Boston, --
+-- MA 02111-1307, USA.                                                      --
+--                                                                          --
+-- GNAT was originally developed  by the GNAT team at  New York University. --
+-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  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 partcicular 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
+   --  encountered.
+   --
+   --  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;