1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
5 -- S Y S T E M . S O F T _ L I N K S --
9 -- Copyright (C) 1992-2011, Free Software Foundation, Inc. --
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 3, 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. --
18 -- As a special exception under Section 7 of GPL version 3, you are granted --
19 -- additional permissions described in the GCC Runtime Library Exception, --
20 -- version 3.1, as published by the Free Software Foundation. --
22 -- You should have received a copy of the GNU General Public License and --
23 -- a copy of the GCC Runtime Library Exception along with this program; --
24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
25 -- <http://www.gnu.org/licenses/>. --
27 -- GNAT was originally developed by the GNAT team at New York University. --
28 -- Extensive contributions were provided by Ada Core Technologies Inc. --
30 ------------------------------------------------------------------------------
35 -- We must turn polling off for this unit, because otherwise we get an
36 -- infinite loop from the code within the Poll routine itself.
38 with System.Parameters;
40 pragma Warnings (Off);
41 -- Disable warnings since System.Secondary_Stack is currently not Preelaborate
42 with System.Secondary_Stack;
45 package body System.Soft_Links is
47 package SST renames System.Secondary_Stack;
50 -- Note: we rely on the default initialization of NT_TSD
56 procedure Abort_Defer_NT is
61 ----------------------
62 -- Abort_Handler_NT --
63 ----------------------
65 procedure Abort_Handler_NT is
70 ----------------------
71 -- Abort_Undefer_NT --
72 ----------------------
74 procedure Abort_Undefer_NT is
83 procedure Adafinal_NT is
85 -- Handle normal task termination by the environment task, but only
86 -- for the normal task termination. In the case of Abnormal and
87 -- Unhandled_Exception they must have been handled before, and the
88 -- task termination soft link must have been changed so the task
89 -- termination routine is not executed twice.
91 Task_Termination_Handler.all (Ada.Exceptions.Null_Occurrence);
93 -- Finalize all library-level controlled objects if needed
95 if Finalize_Library_Objects /= null then
96 Finalize_Library_Objects.all;
100 ---------------------------
101 -- Check_Abort_Status_NT --
102 ---------------------------
104 function Check_Abort_Status_NT return Integer is
106 return Boolean'Pos (False);
107 end Check_Abort_Status_NT;
109 ------------------------
110 -- Complete_Master_NT --
111 ------------------------
113 procedure Complete_Master_NT is
116 end Complete_Master_NT;
122 procedure Create_TSD (New_TSD : in out TSD) is
124 SS_Ratio_Dynamic : constant Boolean := Sec_Stack_Percentage = Dynamic;
126 if SS_Ratio_Dynamic then
128 (New_TSD.Sec_Stack_Addr, SST.Default_Secondary_Stack_Size);
132 -----------------------
133 -- Current_Master_NT --
134 -----------------------
136 function Current_Master_NT return Integer is
139 end Current_Master_NT;
145 procedure Destroy_TSD (Old_TSD : in out TSD) is
147 SST.SS_Free (Old_TSD.Sec_Stack_Addr);
150 ---------------------
151 -- Enter_Master_NT --
152 ---------------------
154 procedure Enter_Master_NT is
159 --------------------------
160 -- Get_Current_Excep_NT --
161 --------------------------
163 function Get_Current_Excep_NT return EOA is
165 return NT_TSD.Current_Excep'Access;
166 end Get_Current_Excep_NT;
168 ------------------------
169 -- Get_GNAT_Exception --
170 ------------------------
172 function Get_GNAT_Exception return Ada.Exceptions.Exception_Id is
174 return Ada.Exceptions.Exception_Identity (Get_Current_Excep.all.all);
175 end Get_GNAT_Exception;
177 ---------------------------
178 -- Get_Jmpbuf_Address_NT --
179 ---------------------------
181 function Get_Jmpbuf_Address_NT return Address is
183 return NT_TSD.Jmpbuf_Address;
184 end Get_Jmpbuf_Address_NT;
186 -----------------------------
187 -- Get_Jmpbuf_Address_Soft --
188 -----------------------------
190 function Get_Jmpbuf_Address_Soft return Address is
192 return Get_Jmpbuf_Address.all;
193 end Get_Jmpbuf_Address_Soft;
195 ---------------------------
196 -- Get_Sec_Stack_Addr_NT --
197 ---------------------------
199 function Get_Sec_Stack_Addr_NT return Address is
201 return NT_TSD.Sec_Stack_Addr;
202 end Get_Sec_Stack_Addr_NT;
204 -----------------------------
205 -- Get_Sec_Stack_Addr_Soft --
206 -----------------------------
208 function Get_Sec_Stack_Addr_Soft return Address is
210 return Get_Sec_Stack_Addr.all;
211 end Get_Sec_Stack_Addr_Soft;
213 -----------------------
214 -- Get_Stack_Info_NT --
215 -----------------------
217 function Get_Stack_Info_NT return Stack_Checking.Stack_Access is
219 return NT_TSD.Pri_Stack_Info'Access;
220 end Get_Stack_Info_NT;
222 -----------------------------
223 -- Save_Library_Occurrence --
224 -----------------------------
226 procedure Save_Library_Occurrence
227 (E : Ada.Exceptions.Exception_Occurrence)
230 if not Library_Exception_Set then
231 Library_Exception_Set := True;
232 Ada.Exceptions.Save_Occurrence (Library_Exception, E);
234 end Save_Library_Occurrence;
236 ---------------------------
237 -- Set_Jmpbuf_Address_NT --
238 ---------------------------
240 procedure Set_Jmpbuf_Address_NT (Addr : Address) is
242 NT_TSD.Jmpbuf_Address := Addr;
243 end Set_Jmpbuf_Address_NT;
245 procedure Set_Jmpbuf_Address_Soft (Addr : Address) is
247 Set_Jmpbuf_Address (Addr);
248 end Set_Jmpbuf_Address_Soft;
250 ---------------------------
251 -- Set_Sec_Stack_Addr_NT --
252 ---------------------------
254 procedure Set_Sec_Stack_Addr_NT (Addr : Address) is
256 NT_TSD.Sec_Stack_Addr := Addr;
257 end Set_Sec_Stack_Addr_NT;
259 -----------------------------
260 -- Set_Sec_Stack_Addr_Soft --
261 -----------------------------
263 procedure Set_Sec_Stack_Addr_Soft (Addr : Address) is
265 Set_Sec_Stack_Addr (Addr);
266 end Set_Sec_Stack_Addr_Soft;
272 procedure Task_Lock_NT is
281 function Task_Name_NT return String is
286 -------------------------
287 -- Task_Termination_NT --
288 -------------------------
290 procedure Task_Termination_NT (Excep : EO) is
291 pragma Unreferenced (Excep);
294 end Task_Termination_NT;
300 procedure Task_Unlock_NT is
305 -------------------------
306 -- Update_Exception_NT --
307 -------------------------
309 procedure Update_Exception_NT (X : EO := Current_Target_Exception) is
311 Ada.Exceptions.Save_Occurrence (NT_TSD.Current_Excep, X);
312 end Update_Exception_NT;
314 end System.Soft_Links;