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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) 1992-2005 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 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;
--  Used for Sec_Stack_Ratio
 
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;
 
   ---------------------------
   -- 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_Adafinal --
   -------------------
 
   procedure Null_Adafinal is
   begin
      null;
   end Null_Adafinal;
 
   ---------------------------
   -- 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_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;
 
   ------------------
   -- Task_Name_NT --
   -------------------
 
   function Task_Name_NT return String is
   begin
      return "main_task";
   end Task_Name_NT;
 
end System.Soft_Links;

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[/] [scarts/] [trunk/] [toolchain/] [scarts-gcc/] [gcc-4.1.1/] [gcc/] [ada/] [s-soflin.adb] - Blame information for rev 27

Line No.	Rev	Author	Line
1	12	jlechner	`------------------------------------------------------------------------------`
2			`-- --`
3			`-- GNAT COMPILER COMPONENTS --`
4			`-- --`
5			`-- S Y S T E M . S O F T _ L I N K S --`
6			`-- --`
7			`-- B o d y --`
8			`-- --`
9			`-- Copyright (C) 1992-2005 Free Software Foundation, Inc. --`
10			`-- --`
11			`-- GNAT is free software; you can redistribute it and/or modify it under --`
12			`-- terms of the GNU General Public License as published by the Free Soft- --`
13			`-- ware Foundation; either version 2, or (at your option) any later ver- --`
14			`-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --`
15			`-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --`
16			`-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --`
17			`-- for more details. You should have received a copy of the GNU General --`
18			`-- Public License distributed with GNAT; see file COPYING. If not, write --`
19			`-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --`
20			`-- Boston, MA 02110-1301, USA. --`
21			`-- --`
22			`-- As a special exception, if other files instantiate generics from this --`
23			`-- unit, or you link this unit with other files to produce an executable, --`
24			`-- this unit does not by itself cause the resulting executable to be --`
25			`-- covered by the GNU General Public License. This exception does not --`
26			`-- however invalidate any other reasons why the executable file might be --`
27			`-- covered by the GNU Public License. --`
28			`-- --`
29			`-- GNAT was originally developed by the GNAT team at New York University. --`
30			`-- Extensive contributions were provided by Ada Core Technologies Inc. --`
31			`-- --`
32			`------------------------------------------------------------------------------`
33
34			`pragma Polling (Off);`
35			`-- We must turn polling off for this unit, because otherwise we get`
36			`-- an infinite loop from the code within the Poll routine itself.`
37
38			`with System.Parameters;`
39			`-- Used for Sec_Stack_Ratio`
40
41			`pragma Warnings (Off);`
42			`-- Disable warnings since System.Secondary_Stack is currently not`
43			`-- Preelaborate`
44			`with System.Secondary_Stack;`
45			`pragma Warnings (On);`
46
47			`package body System.Soft_Links is`
48
49			`package SST renames System.Secondary_Stack;`
50
51			`NT_Exc_Stack : array (0 .. 8192) of aliased Character;`
52			`for NT_Exc_Stack'Alignment use Standard'Maximum_Alignment;`
53			`-- Allocate an exception stack for the main program to use.`
54			`-- This is currently only used under VMS.`
55
56			`NT_TSD : TSD;`
57			`-- Note: we rely on the default initialization of NT_TSD.`
58
59			`--------------------`
60			`-- Abort_Defer_NT --`
61			`--------------------`
62
63			`procedure Abort_Defer_NT is`
64			`begin`
65			`null;`
66			`end Abort_Defer_NT;`
67
68			`----------------------`
69			`-- Abort_Handler_NT --`
70			`----------------------`
71
72			`procedure Abort_Handler_NT is`
73			`begin`
74			`null;`
75			`end Abort_Handler_NT;`
76
77			`----------------------`
78			`-- Abort_Undefer_NT --`
79			`----------------------`
80
81			`procedure Abort_Undefer_NT is`
82			`begin`
83			`null;`
84			`end Abort_Undefer_NT;`
85
86			`---------------------------`
87			`-- Check_Abort_Status_NT --`
88			`---------------------------`
89
90			`function Check_Abort_Status_NT return Integer is`
91			`begin`
92			`return Boolean'Pos (False);`
93			`end Check_Abort_Status_NT;`
94
95			`------------------------`
96			`-- Complete_Master_NT --`
97			`------------------------`
98
99			`procedure Complete_Master_NT is`
100			`begin`
101			`null;`
102			`end Complete_Master_NT;`
103
104			`----------------`
105			`-- Create_TSD --`
106			`----------------`
107
108			`procedure Create_TSD (New_TSD : in out TSD) is`
109			`use type Parameters.Size_Type;`
110
111			`SS_Ratio_Dynamic : constant Boolean :=`
112			`Parameters.Sec_Stack_Ratio = Parameters.Dynamic;`
113
114			`begin`
115			`if SS_Ratio_Dynamic then`
116			`SST.SS_Init`
117			`(New_TSD.Sec_Stack_Addr, SST.Default_Secondary_Stack_Size);`
118			`end if;`
119			`end Create_TSD;`
120
121			`-----------------------`
122			`-- Current_Master_NT --`
123			`-----------------------`
124
125			`function Current_Master_NT return Integer is`
126			`begin`
127			`return 0;`
128			`end Current_Master_NT;`
129
130			`-----------------`
131			`-- Destroy_TSD --`
132			`-----------------`
133
134			`procedure Destroy_TSD (Old_TSD : in out TSD) is`
135			`begin`
136			`SST.SS_Free (Old_TSD.Sec_Stack_Addr);`
137			`end Destroy_TSD;`
138
139			`---------------------`
140			`-- Enter_Master_NT --`
141			`---------------------`
142
143			`procedure Enter_Master_NT is`
144			`begin`
145			`null;`
146			`end Enter_Master_NT;`
147
148			`--------------------------`
149			`-- Get_Current_Excep_NT --`
150			`--------------------------`
151
152			`function Get_Current_Excep_NT return EOA is`
153			`begin`
154			`return NT_TSD.Current_Excep'Access;`
155			`end Get_Current_Excep_NT;`
156
157			`---------------------------`
158			`-- Get_Exc_Stack_Addr_NT --`
159			`---------------------------`
160
161			`function Get_Exc_Stack_Addr_NT return Address is`
162			`begin`
163			`return NT_Exc_Stack (NT_Exc_Stack'Last)'Address;`
164			`end Get_Exc_Stack_Addr_NT;`
165
166			`-----------------------------`
167			`-- Get_Exc_Stack_Addr_Soft --`
168			`-----------------------------`
169
170			`function Get_Exc_Stack_Addr_Soft return Address is`
171			`begin`
172			`return Get_Exc_Stack_Addr.all;`
173			`end Get_Exc_Stack_Addr_Soft;`
174
175			`------------------------`
176			`-- Get_GNAT_Exception --`
177			`------------------------`
178
179			`function Get_GNAT_Exception return Ada.Exceptions.Exception_Id is`
180			`begin`
181			`return Ada.Exceptions.Exception_Identity (Get_Current_Excep.all.all);`
182			`end Get_GNAT_Exception;`
183
184			`---------------------------`
185			`-- Get_Jmpbuf_Address_NT --`
186			`---------------------------`
187
188			`function Get_Jmpbuf_Address_NT return Address is`
189			`begin`
190			`return NT_TSD.Jmpbuf_Address;`
191			`end Get_Jmpbuf_Address_NT;`
192
193			`-----------------------------`
194			`-- Get_Jmpbuf_Address_Soft --`
195			`-----------------------------`
196
197			`function Get_Jmpbuf_Address_Soft return Address is`
198			`begin`
199			`return Get_Jmpbuf_Address.all;`
200			`end Get_Jmpbuf_Address_Soft;`
201
202			`---------------------------`
203			`-- Get_Sec_Stack_Addr_NT --`
204			`---------------------------`
205
206			`function Get_Sec_Stack_Addr_NT return Address is`
207			`begin`
208			`return NT_TSD.Sec_Stack_Addr;`
209			`end Get_Sec_Stack_Addr_NT;`
210
211			`-----------------------------`
212			`-- Get_Sec_Stack_Addr_Soft --`
213			`-----------------------------`
214
215			`function Get_Sec_Stack_Addr_Soft return Address is`
216			`begin`
217			`return Get_Sec_Stack_Addr.all;`
218			`end Get_Sec_Stack_Addr_Soft;`
219
220			`-----------------------`
221			`-- Get_Stack_Info_NT --`
222			`-----------------------`
223
224			`function Get_Stack_Info_NT return Stack_Checking.Stack_Access is`
225			`begin`
226			`return NT_TSD.Pri_Stack_Info'Access;`
227			`end Get_Stack_Info_NT;`
228
229			`-------------------`
230			`-- Null_Adafinal --`
231			`-------------------`
232
233			`procedure Null_Adafinal is`
234			`begin`
235			`null;`
236			`end Null_Adafinal;`
237
238			`---------------------------`
239			`-- Set_Jmpbuf_Address_NT --`
240			`---------------------------`
241
242			`procedure Set_Jmpbuf_Address_NT (Addr : Address) is`
243			`begin`
244			`NT_TSD.Jmpbuf_Address := Addr;`
245			`end Set_Jmpbuf_Address_NT;`
246
247			`procedure Set_Jmpbuf_Address_Soft (Addr : Address) is`
248			`begin`
249			`Set_Jmpbuf_Address (Addr);`
250			`end Set_Jmpbuf_Address_Soft;`
251
252			`---------------------------`
253			`-- Set_Sec_Stack_Addr_NT --`
254			`---------------------------`
255
256			`procedure Set_Sec_Stack_Addr_NT (Addr : Address) is`
257			`begin`
258			`NT_TSD.Sec_Stack_Addr := Addr;`
259			`end Set_Sec_Stack_Addr_NT;`
260
261			`-----------------------------`
262			`-- Set_Sec_Stack_Addr_Soft --`
263			`-----------------------------`
264
265			`procedure Set_Sec_Stack_Addr_Soft (Addr : Address) is`
266			`begin`
267			`Set_Sec_Stack_Addr (Addr);`
268			`end Set_Sec_Stack_Addr_Soft;`
269
270			`------------------`
271			`-- Task_Lock_NT --`
272			`------------------`
273
274			`procedure Task_Lock_NT is`
275			`begin`
276			`null;`
277			`end Task_Lock_NT;`
278
279			`--------------------`
280			`-- Task_Unlock_NT --`
281			`--------------------`
282
283			`procedure Task_Unlock_NT is`
284			`begin`
285			`null;`
286			`end Task_Unlock_NT;`
287
288			`-------------------------`
289			`-- Update_Exception_NT --`
290			`-------------------------`
291
292			`procedure Update_Exception_NT (X : EO := Current_Target_Exception) is`
293			`begin`
294			`Ada.Exceptions.Save_Occurrence (NT_TSD.Current_Excep, X);`
295			`end Update_Exception_NT;`
296
297			`------------------`
298			`-- Task_Name_NT --`
299			`-------------------`
300
301			`function Task_Name_NT return String is`
302			`begin`
303			`return "main_task";`
304			`end Task_Name_NT;`
305
306			`end System.Soft_Links;`