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|
------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- S Y S T E M . S O F T _ L I N K S --
-- --
-- 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. --
-- --
------------------------------------------------------------------------------
pragma Compiler_Unit;
pragma Polling (Off);
-- We must turn polling off for this unit, because otherwise we get an
-- infinite loop from the code within the Poll routine itself.
with System.Parameters;
pragma Warnings (Off);
-- Disable warnings since System.Secondary_Stack is currently not Preelaborate
with System.Secondary_Stack;
pragma Warnings (On);
package body System.Soft_Links is
package SST renames System.Secondary_Stack;
NT_Exc_Stack : array (0 .. 8192) of aliased Character;
for NT_Exc_Stack'Alignment use Standard'Maximum_Alignment;
-- Allocate an exception stack for the main program to use.
-- This is currently only used under VMS.
NT_TSD : TSD;
-- Note: we rely on the default initialization of NT_TSD
--------------------
-- Abort_Defer_NT --
--------------------
procedure Abort_Defer_NT is
begin
null;
end Abort_Defer_NT;
----------------------
-- Abort_Handler_NT --
----------------------
procedure Abort_Handler_NT is
begin
null;
end Abort_Handler_NT;
----------------------
-- Abort_Undefer_NT --
----------------------
procedure Abort_Undefer_NT is
begin
null;
end Abort_Undefer_NT;
-----------------
-- Adafinal_NT --
-----------------
procedure Adafinal_NT is
begin
-- Handle normal task termination by the environment task, but only
-- for the normal task termination. In the case of Abnormal and
-- Unhandled_Exception they must have been handled before, and the
-- task termination soft link must have been changed so the task
-- termination routine is not executed twice.
Task_Termination_Handler.all (Ada.Exceptions.Null_Occurrence);
-- Finalize the global list for controlled objects if needed
Finalize_Global_List.all;
end Adafinal_NT;
---------------------------
-- Check_Abort_Status_NT --
---------------------------
function Check_Abort_Status_NT return Integer is
begin
return Boolean'Pos (False);
end Check_Abort_Status_NT;
------------------------
-- Complete_Master_NT --
------------------------
procedure Complete_Master_NT is
begin
null;
end Complete_Master_NT;
----------------
-- Create_TSD --
----------------
procedure Create_TSD (New_TSD : in out TSD) is
use type Parameters.Size_Type;
SS_Ratio_Dynamic : constant Boolean :=
Parameters.Sec_Stack_Ratio = Parameters.Dynamic;
begin
if SS_Ratio_Dynamic then
SST.SS_Init
(New_TSD.Sec_Stack_Addr, SST.Default_Secondary_Stack_Size);
end if;
end Create_TSD;
-----------------------
-- Current_Master_NT --
-----------------------
function Current_Master_NT return Integer is
begin
return 0;
end Current_Master_NT;
-----------------
-- Destroy_TSD --
-----------------
procedure Destroy_TSD (Old_TSD : in out TSD) is
begin
SST.SS_Free (Old_TSD.Sec_Stack_Addr);
end Destroy_TSD;
---------------------
-- Enter_Master_NT --
---------------------
procedure Enter_Master_NT is
begin
null;
end Enter_Master_NT;
--------------------------
-- Get_Current_Excep_NT --
--------------------------
function Get_Current_Excep_NT return EOA is
begin
return NT_TSD.Current_Excep'Access;
end Get_Current_Excep_NT;
---------------------------
-- Get_Exc_Stack_Addr_NT --
---------------------------
function Get_Exc_Stack_Addr_NT return Address is
begin
return NT_Exc_Stack (NT_Exc_Stack'Last)'Address;
end Get_Exc_Stack_Addr_NT;
-----------------------------
-- Get_Exc_Stack_Addr_Soft --
-----------------------------
function Get_Exc_Stack_Addr_Soft return Address is
begin
return Get_Exc_Stack_Addr.all;
end Get_Exc_Stack_Addr_Soft;
------------------------
-- Get_GNAT_Exception --
------------------------
function Get_GNAT_Exception return Ada.Exceptions.Exception_Id is
begin
return Ada.Exceptions.Exception_Identity (Get_Current_Excep.all.all);
end Get_GNAT_Exception;
---------------------------
-- Get_Jmpbuf_Address_NT --
---------------------------
function Get_Jmpbuf_Address_NT return Address is
begin
return NT_TSD.Jmpbuf_Address;
end Get_Jmpbuf_Address_NT;
-----------------------------
-- Get_Jmpbuf_Address_Soft --
-----------------------------
function Get_Jmpbuf_Address_Soft return Address is
begin
return Get_Jmpbuf_Address.all;
end Get_Jmpbuf_Address_Soft;
---------------------------
-- Get_Sec_Stack_Addr_NT --
---------------------------
function Get_Sec_Stack_Addr_NT return Address is
begin
return NT_TSD.Sec_Stack_Addr;
end Get_Sec_Stack_Addr_NT;
-----------------------------
-- Get_Sec_Stack_Addr_Soft --
-----------------------------
function Get_Sec_Stack_Addr_Soft return Address is
begin
return Get_Sec_Stack_Addr.all;
end Get_Sec_Stack_Addr_Soft;
-----------------------
-- Get_Stack_Info_NT --
-----------------------
function Get_Stack_Info_NT return Stack_Checking.Stack_Access is
begin
return NT_TSD.Pri_Stack_Info'Access;
end Get_Stack_Info_NT;
-------------------------------
-- Null_Finalize_Global_List --
-------------------------------
procedure Null_Finalize_Global_List is
begin
null;
end Null_Finalize_Global_List;
---------------------------
-- Set_Jmpbuf_Address_NT --
---------------------------
procedure Set_Jmpbuf_Address_NT (Addr : Address) is
begin
NT_TSD.Jmpbuf_Address := Addr;
end Set_Jmpbuf_Address_NT;
procedure Set_Jmpbuf_Address_Soft (Addr : Address) is
begin
Set_Jmpbuf_Address (Addr);
end Set_Jmpbuf_Address_Soft;
---------------------------
-- Set_Sec_Stack_Addr_NT --
---------------------------
procedure Set_Sec_Stack_Addr_NT (Addr : Address) is
begin
NT_TSD.Sec_Stack_Addr := Addr;
end Set_Sec_Stack_Addr_NT;
-----------------------------
-- Set_Sec_Stack_Addr_Soft --
-----------------------------
procedure Set_Sec_Stack_Addr_Soft (Addr : Address) is
begin
Set_Sec_Stack_Addr (Addr);
end Set_Sec_Stack_Addr_Soft;
------------------
-- Task_Lock_NT --
------------------
procedure Task_Lock_NT is
begin
null;
end Task_Lock_NT;
------------------
-- Task_Name_NT --
-------------------
function Task_Name_NT return String is
begin
return "main_task";
end Task_Name_NT;
-------------------------
-- Task_Termination_NT --
-------------------------
procedure Task_Termination_NT (Excep : EO) is
pragma Unreferenced (Excep);
begin
null;
end Task_Termination_NT;
--------------------
-- Task_Unlock_NT --
--------------------
procedure Task_Unlock_NT is
begin
null;
end Task_Unlock_NT;
-------------------------
-- Update_Exception_NT --
-------------------------
procedure Update_Exception_NT (X : EO := Current_Target_Exception) is
begin
Ada.Exceptions.Save_Occurrence (NT_TSD.Current_Excep, X);
end Update_Exception_NT;
end System.Soft_Links;
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