New Language: Ada

From-SVN: r45952

1 files changed, 159 insertions, 0 deletions

diff --git a/gcc/ada/5smastop.adb b/gcc/ada/5smastop.adb
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+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--                     SYSTEM.MACHINE_STATE_OPERATIONS                      --
+--                                                                          --
+--                                 B o d y                                  --
+--            (Version using the GCC stack unwinding mechanism)             --
+--                                                                          --
+--                            $Revision: 1.3 $
+--                                                                          --
+--           Copyright (C) 1999-2001 Ada Core Technologies, 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.                                                      --
+--                                                                          --
+-- 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. --
+-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  This version of System.Machine_State_Operations is for use on
+--  systems where the GCC stack unwinding mechanism is supported.
+--  It is currently only used on Solaris
+
+package body System.Machine_State_Operations is
+
+   use System.Storage_Elements;
+   use System.Exceptions;
+
+   ----------------------------
+   -- Allocate_Machine_State --
+   ----------------------------
+
+   function Allocate_Machine_State return Machine_State is
+      function Machine_State_Length return Storage_Offset;
+      pragma Import (C, Machine_State_Length, "__gnat_machine_state_length");
+
+      function Gnat_Malloc (Size : Storage_Offset) return Machine_State;
+      pragma Import (C, Gnat_Malloc, "__gnat_malloc");
+
+   begin
+      return Gnat_Malloc (Machine_State_Length);
+   end Allocate_Machine_State;
+
+   -------------------
+   -- Enter_Handler --
+   -------------------
+
+   procedure Enter_Handler (M : Machine_State; Handler : Handler_Loc) is
+      procedure c_enter_handler (m : Machine_State; handler : Handler_Loc);
+      pragma Import (C, c_enter_handler, "__gnat_enter_handler");
+
+   begin
+      c_enter_handler (M, Handler);
+   end Enter_Handler;
+
+   ----------------
+   -- Fetch_Code --
+   ----------------
+
+   function Fetch_Code (Loc : Code_Loc) return Code_Loc is
+   begin
+      return Loc;
+   end Fetch_Code;
+
+   ------------------------
+   -- Free_Machine_State --
+   ------------------------
+
+   procedure Free_Machine_State (M : in out Machine_State) is
+      procedure Gnat_Free (M : in Machine_State);
+      pragma Import (C, Gnat_Free, "__gnat_free");
+
+   begin
+      Gnat_Free (M);
+      M := Machine_State (Null_Address);
+   end Free_Machine_State;
+
+   ------------------
+   -- Get_Code_Loc --
+   ------------------
+
+   function Get_Code_Loc (M : Machine_State) return Code_Loc is
+      function c_get_code_loc (m : Machine_State) return Code_Loc;
+      pragma Import (C, c_get_code_loc, "__gnat_get_code_loc");
+
+   begin
+      return c_get_code_loc (M);
+   end Get_Code_Loc;
+
+   --------------------------
+   -- Machine_State_Length --
+   --------------------------
+
+   function Machine_State_Length return Storage_Offset is
+
+      function c_machine_state_length return Storage_Offset;
+      pragma Import (C, c_machine_state_length, "__gnat_machine_state_length");
+
+   begin
+      return c_machine_state_length;
+   end Machine_State_Length;
+
+   ---------------
+   -- Pop_Frame --
+   ---------------
+
+   procedure Pop_Frame
+     (M    : Machine_State;
+      Info : Subprogram_Info_Type)
+   is
+      procedure c_pop_frame (m : Machine_State);
+      pragma Import (C, c_pop_frame, "__gnat_pop_frame");
+
+   begin
+      c_pop_frame (M);
+   end Pop_Frame;
+
+   -----------------------
+   -- Set_Machine_State --
+   -----------------------
+
+   procedure Set_Machine_State (M : Machine_State) is
+      procedure c_set_machine_state (m : Machine_State);
+      pragma Import (C, c_set_machine_state, "__gnat_set_machine_state");
+
+   begin
+      c_set_machine_state (M);
+      Pop_Frame (M, System.Null_Address);
+   end Set_Machine_State;
+
+   ------------------------------
+   -- Set_Signal_Machine_State --
+   ------------------------------
+
+   procedure Set_Signal_Machine_State
+     (M       : Machine_State;
+      Context : System.Address) is
+   begin
+      null;
+   end Set_Signal_Machine_State;
+
+end System.Machine_State_Operations;