Check in a pristine copy of GCC 4.8.1.

The copy of GCC that we use for Android is still not working for
mingw. Rather than finding all the differences that have crept into
our GCC, just check in a copy from
ftp://ftp.gnu.org/gnu/gcc/gcc-4.9.3/gcc-4.8.1.tar.bz2.

GCC 4.8.1 was chosen because it is what we have been using for mingw
thus far, and the emulator doesn't yet work when upgrading to 4.9.

Bug: http://b/26523949
Change-Id: Iedc0f05243d4332cc27ccd46b8a4b203c88dcaa3

1 files changed, 204 insertions, 0 deletions

diff --git a/gcc-4.8.1/gcc/ada/fname.adb b/gcc-4.8.1/gcc/ada/fname.adb
new file mode 100644
index 000000000..48cb20705
--- /dev/null
+++ b/gcc-4.8.1/gcc/ada/fname.adb
@@ -0,0 +1,204 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--                                F N A M E                                 --
+--                                                                          --
+--                                 B o d y                                  --
+--                                                                          --
+--          Copyright (C) 1992-2009, 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.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+with Alloc;
+with Hostparm; use Hostparm;
+with Table;
+with Types;    use Types;
+
+package body Fname is
+
+   -----------------------------
+   -- Dummy Table Definitions --
+   -----------------------------
+
+   --  The following table was used in old versions of the compiler. We retain
+   --  the declarations here for compatibility with old tree files. The new
+   --  version of the compiler does not use this table, and will write out a
+   --  dummy empty table for Tree_Write.
+
+   type SFN_Entry is record
+      U : Unit_Name_Type;
+      F : File_Name_Type;
+   end record;
+
+   package SFN_Table is new Table.Table (
+     Table_Component_Type => SFN_Entry,
+     Table_Index_Type     => Int,
+     Table_Low_Bound      => 0,
+     Table_Initial        => Alloc.SFN_Table_Initial,
+     Table_Increment      => Alloc.SFN_Table_Increment,
+     Table_Name           => "Fname_Dummy_Table");
+
+   ---------------------------
+   -- Is_Internal_File_Name --
+   ---------------------------
+
+   function Is_Internal_File_Name
+     (Fname              : File_Name_Type;
+      Renamings_Included : Boolean := True) return Boolean
+   is
+   begin
+      if Is_Predefined_File_Name (Fname, Renamings_Included) then
+         return True;
+
+      --  Once Is_Predefined_File_Name has been called and returns False,
+      --  Name_Buffer contains Fname and Name_Len is set to 8.
+
+      elsif Name_Buffer (1 .. 2) = "g-"
+        or else Name_Buffer (1 .. 8) = "gnat    "
+      then
+         return True;
+
+      elsif OpenVMS
+        and then
+          (Name_Buffer (1 .. 4) = "dec-"
+             or else Name_Buffer (1 .. 8) = "dec     ")
+      then
+         return True;
+
+      else
+         return False;
+      end if;
+   end Is_Internal_File_Name;
+
+   -----------------------------
+   -- Is_Predefined_File_Name --
+   -----------------------------
+
+   --  This should really be a test of unit name, given the possibility of
+   --  pragma Source_File_Name setting arbitrary file names for any files???
+
+   --  Once Is_Predefined_File_Name has been called and returns False,
+   --  Name_Buffer contains Fname and Name_Len is set to 8. This is used
+   --  only by Is_Internal_File_Name, and is not part of the official
+   --  external interface of this function.
+
+   function Is_Predefined_File_Name
+     (Fname              : File_Name_Type;
+      Renamings_Included : Boolean := True) return Boolean
+   is
+   begin
+      Get_Name_String (Fname);
+      return Is_Predefined_File_Name (Renamings_Included);
+   end Is_Predefined_File_Name;
+
+   function Is_Predefined_File_Name
+     (Renamings_Included : Boolean := True) return Boolean
+   is
+      subtype Str8 is String (1 .. 8);
+
+      Predef_Names : constant array (1 .. 11) of Str8 :=
+        ("ada     ",       -- Ada
+         "interfac",       -- Interfaces
+         "system  ",       -- System
+
+         --  Remaining entries are only considered if Renamings_Included true
+
+         "calendar",       -- Calendar
+         "machcode",       -- Machine_Code
+         "unchconv",       -- Unchecked_Conversion
+         "unchdeal",       -- Unchecked_Deallocation
+         "directio",       -- Direct_IO
+         "ioexcept",       -- IO_Exceptions
+         "sequenio",       -- Sequential_IO
+         "text_io ");      -- Text_IO
+
+         Num_Entries : constant Natural :=
+                         3 + 8 * Boolean'Pos (Renamings_Included);
+
+   begin
+      --  Remove extension (if present)
+
+      if Name_Len > 4 and then Name_Buffer (Name_Len - 3) = '.' then
+         Name_Len := Name_Len - 4;
+      end if;
+
+      --  Definitely false if longer than 12 characters (8.3)
+
+      if Name_Len > 8 then
+         return False;
+
+      --  Definitely predefined if prefix is a- i- or s- followed by letter
+
+      elsif Name_Len >=  3
+        and then Name_Buffer (2) = '-'
+        and then (Name_Buffer (1) = 'a'
+                    or else
+                  Name_Buffer (1) = 'i'
+                    or else
+                  Name_Buffer (1) = 's')
+        and then (Name_Buffer (3) in 'a' .. 'z'
+                    or else
+                  Name_Buffer (3) in 'A' .. 'Z')
+      then
+         return True;
+      end if;
+
+      --  Otherwise check against special list, first padding to 8 characters
+
+      while Name_Len < 8 loop
+         Name_Len := Name_Len + 1;
+         Name_Buffer (Name_Len) := ' ';
+      end loop;
+
+      for J in 1 .. Num_Entries loop
+         if Name_Buffer (1 .. 8) = Predef_Names (J) then
+            return True;
+         end if;
+      end loop;
+
+      --  Note: when we return False here, the Name_Buffer contains the
+      --  padded file name. This is not defined for clients of the package,
+      --  but is used by Is_Internal_File_Name.
+
+      return False;
+   end Is_Predefined_File_Name;
+
+   ---------------
+   -- Tree_Read --
+   ---------------
+
+   procedure Tree_Read is
+   begin
+      SFN_Table.Tree_Read;
+   end Tree_Read;
+
+   ----------------
+   -- Tree_Write --
+   ----------------
+
+   procedure Tree_Write is
+   begin
+      SFN_Table.Tree_Write;
+   end Tree_Write;
+
+end Fname;