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Diffstat (limited to 'gcc/ada/5zthrini.adb')
| -rw-r--r-- | gcc/ada/5zthrini.adb | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/gcc/ada/5zthrini.adb b/gcc/ada/5zthrini.adb deleted file mode 100644 index ded9a5118bb..00000000000 --- a/gcc/ada/5zthrini.adb +++ /dev/null @@ -1,113 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT COMPILER COMPONENTS -- --- -- --- S Y S T E M . T H R E A D S . I N I T I A L I Z A T I O N -- --- -- --- B o d y -- --- -- --- Copyright (C) 1992-2003 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, 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. -- --- Extensive contributions were provided by Ada Core Technologies Inc. -- --- -- ------------------------------------------------------------------------------- - --- This is the VxWorks version of this package; to use this implementation, --- the task hook libraries should be included in the VxWorks kernel. - -with System.Secondary_Stack; -with Interfaces.C; -with Unchecked_Conversion; - -package body System.Threads.Initialization is - - use Interfaces.C; - - package SSS renames System.Secondary_Stack; - - procedure Initialize_Task_Hooks; - -- Register the appropriate hooks (Register and Reset_TSD) to the - -- underlying OS, so that they will be called when a task is created - -- or reset. - - Current_ATSD : aliased System.Address; - pragma Import (C, Current_ATSD, "__gnat_current_atsd"); - - --------------------------- - -- Initialize_Task_Hooks -- - --------------------------- - - procedure Initialize_Task_Hooks is separate; - -- Separate, as these hooks are different for AE653 and VxWorks 5.5. - - -------------- - -- Register -- - -------------- - - function Register (T : OSI.Thread_Id) return OSI.STATUS is - TSD : ATSD_Access := new ATSD; - Result : OSI.STATUS; - begin - -- It cannot be assumed that the caller of this routine has a ATSD; - -- so neither this procedure nor the procedures that it calls should - -- raise or handle exceptions, or make use of a secondary stack. - - if OSI.taskIdVerify (T) = OSI.ERROR - or else OSI.taskVarGet (T, Current_ATSD'Access) /= OSI.ERROR - then - return OSI.ERROR; - end if; - - Result := OSI.taskVarAdd (T, Current_ATSD'Access); - pragma Assert (Result /= -1); - Result := OSI.taskVarSet (T, Current_ATSD'Access, TSD.all'Address); - pragma Assert (Result /= -1); - TSD.Sec_Stack_Addr := SSS.SS_Create; - SSS.SS_Init (TSD.Sec_Stack_Addr); - return Result; - end Register; - - --------------- - -- Reset_TSD -- - --------------- - - function Reset_TSD (T : OSI.Thread_Id) return OSI.STATUS is - TSD_Ptr : int; - function To_Address is new Unchecked_Conversion - (Interfaces.C.int, ATSD_Access); - begin - TSD_Ptr := OSI.taskVarGet (T, Current_ATSD'Access); - pragma Assert (TSD_Ptr /= OSI.ERROR); - - -- Just reset the secondary stack pointer. The implementation here - -- assumes that the fixed secondary stack implementation is used. - -- If not, there will be a memory leak (along with allocation, which - -- is prohibited for ARINC processes once the system enters "normal" - -- mode). - - SSS.SS_Init (To_Address (TSD_Ptr).Sec_Stack_Addr); - return OSI.OK; - end Reset_TSD; - -begin - Initialize_Task_Hooks; -end System.Threads.Initialization; |