s-imenne.adb, [...]: New files.

2007-12-06  Robert Dewar  <dewar@adacore.com>

	* s-imenne.adb, s-imenne.ads: New files.

	* s-imgboo.adb, s-imgboo.ads, s-imgcha.adb, s-imgcha.ads, s-imgdec.adb, 
	s-imgdec.ads, s-imgenu.ads, s-imgint.adb, s-imgint.ads, s-imglld.adb, 
	s-imglld.ads, s-imglli.adb, s-imglli.ads, s-imgllu.adb, s-imgllu.ads, 
	s-imgrea.adb, s-imgrea.ads, s-imguns.adb, s-imguns.ads, s-imgwch.adb, 
	s-imgwch.ads: New calling sequence for Image routines to avoid sec
	stack usage.

From-SVN: r130852

1 files changed, 132 insertions, 0 deletions

diff --git a/gcc/ada/s-imenne.adb b/gcc/ada/s-imenne.adb
new file mode 100644
index 0000000..1e08b05
--- /dev/null
+++ b/gcc/ada/s-imenne.adb
@@ -0,0 +1,132 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT RUN-TIME COMPONENTS                         --
+--                                                                          --
+--                  S Y S T E M . I M G _ E N U M _ N E W                   --
+--                                                                          --
+--                                 B o d y                                  --
+--                                                                          --
+--          Copyright (C) 2000-2007, 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,  51  Franklin  Street,  Fifth  Floor, --
+-- Boston, MA 02110-1301, USA.                                              --
+--                                                                          --
+-- 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.                                      --
+--                                                                          --
+-- GNAT was originally developed  by the GNAT team at  New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+pragma Warnings (Off);
+pragma Compiler_Unit;
+pragma Warnings (On);
+
+with Ada.Unchecked_Conversion;
+
+package body System.Img_Enum_New is
+
+   -------------------------
+   -- Image_Enumeration_8 --
+   -------------------------
+
+   procedure Image_Enumeration_8
+     (Pos     : Natural;
+      S       : in out String;
+      P       : out Natural;
+      Names   : String;
+      Indexes : System.Address)
+   is
+      pragma Assert (S'First = 1);
+
+      type Natural_8 is range 0 .. 2 ** 7 - 1;
+      type Index_Table is array (Natural) of Natural_8;
+      type Index_Table_Ptr is access Index_Table;
+
+      function To_Index_Table_Ptr is
+        new Ada.Unchecked_Conversion (System.Address, Index_Table_Ptr);
+
+      IndexesT : constant Index_Table_Ptr := To_Index_Table_Ptr (Indexes);
+
+      Start : constant Natural := Natural (IndexesT (Pos));
+      Next  : constant Natural := Natural (IndexesT (Pos + 1));
+
+   begin
+      S (1 .. Next - Start) := Names (Start .. Next - 1);
+      P := Next - Start;
+   end Image_Enumeration_8;
+
+   --------------------------
+   -- Image_Enumeration_16 --
+   --------------------------
+
+   procedure Image_Enumeration_16
+     (Pos     : Natural;
+      S       : in out String;
+      P       : out Natural;
+      Names   : String;
+      Indexes : System.Address)
+   is
+      pragma Assert (S'First = 1);
+
+      type Natural_16 is range 0 .. 2 ** 15 - 1;
+      type Index_Table is array (Natural) of Natural_16;
+      type Index_Table_Ptr is access Index_Table;
+
+      function To_Index_Table_Ptr is
+        new Ada.Unchecked_Conversion (System.Address, Index_Table_Ptr);
+
+      IndexesT : constant Index_Table_Ptr := To_Index_Table_Ptr (Indexes);
+
+      Start : constant Natural := Natural (IndexesT (Pos));
+      Next  : constant Natural := Natural (IndexesT (Pos + 1));
+
+   begin
+      S (1 .. Next - Start) := Names (Start .. Next - 1);
+      P := Next - Start;
+   end Image_Enumeration_16;
+
+   --------------------------
+   -- Image_Enumeration_32 --
+   --------------------------
+
+   procedure Image_Enumeration_32
+     (Pos     : Natural;
+      S       : in out String;
+      P       : out Natural;
+      Names   : String;
+      Indexes : System.Address)
+   is
+      pragma Assert (S'First = 1);
+
+      type Natural_32 is range 0 .. 2 ** 31 - 1;
+      type Index_Table is array (Natural) of Natural_32;
+      type Index_Table_Ptr is access Index_Table;
+
+      function To_Index_Table_Ptr is
+        new Ada.Unchecked_Conversion (System.Address, Index_Table_Ptr);
+
+      IndexesT : constant Index_Table_Ptr := To_Index_Table_Ptr (Indexes);
+
+      Start : constant Natural := Natural (IndexesT (Pos));
+      Next  : constant Natural := Natural (IndexesT (Pos + 1));
+
+   begin
+      S (1 .. Next - Start) := Names (Start .. Next - 1);
+      P := Next - Start;
+   end Image_Enumeration_32;
+
+end System.Img_Enum_New;