------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- SYSTEM.MACHINE_STATE_OPERATIONS -- -- -- -- B o d y -- -- (Version using the GCC stack unwinding mechanism) -- -- -- -- $Revision: 1.1.1.1 $ -- -- -- 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;