| ------------------------------------------------------------------------------ |
| -- -- |
| -- 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; |
