diff options
Diffstat (limited to 'gcc-4.2.1/gcc/ada/s-tpopsp-vxworks.adb')
| -rw-r--r-- | gcc-4.2.1/gcc/ada/s-tpopsp-vxworks.adb | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/gcc-4.2.1/gcc/ada/s-tpopsp-vxworks.adb b/gcc-4.2.1/gcc/ada/s-tpopsp-vxworks.adb new file mode 100644 index 000000000..e05ed7df6 --- /dev/null +++ b/gcc-4.2.1/gcc/ada/s-tpopsp-vxworks.adb @@ -0,0 +1,104 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS -- +-- -- +-- S Y S T E M . T A S K _ P R I M I T I V E S . O P E R A T I O N S . -- +-- S P E C I F I C -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 1992-2005, Free Software Foundation, Inc. -- +-- -- +-- GNARL 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. GNARL 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 GNARL; 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. -- +-- -- +-- GNARL was developed by the GNARL team at Florida State University. -- +-- Extensive contributions were provided by Ada Core Technologies, Inc. -- +-- -- +------------------------------------------------------------------------------ + +-- This is a VxWorks version of this package where foreign threads are +-- recognized. + +separate (System.Task_Primitives.Operations) +package body Specific is + + ATCB_Key : aliased System.Address := System.Null_Address; + -- Key used to find the Ada Task_Id associated with a thread + + ATCB_Key_Addr : System.Address := ATCB_Key'Address; + pragma Export (Ada, ATCB_Key_Addr, "__gnat_ATCB_key_addr"); + -- Exported to support the temporary AE653 task registration + -- implementation. This mechanism is used to minimize impact on other + -- targets. + + ------------ + -- Delete -- + ------------ + + procedure Delete is + Result : STATUS; + begin + Result := taskVarDelete (taskIdSelf, ATCB_Key'Access); + pragma Assert (Result /= ERROR); + end Delete; + + ---------------- + -- Initialize -- + ---------------- + + procedure Initialize is + begin + null; + end Initialize; + + ------------------- + -- Is_Valid_Task -- + ------------------- + + function Is_Valid_Task return Boolean is + begin + return taskVarGet (taskIdSelf, ATCB_Key'Access) /= ERROR; + end Is_Valid_Task; + + --------- + -- Set -- + --------- + + procedure Set (Self_Id : Task_Id) is + Result : STATUS; + + begin + if taskVarGet (0, ATCB_Key'Access) = ERROR then + Result := taskVarAdd (0, ATCB_Key'Access); + pragma Assert (Result = OK); + end if; + + ATCB_Key := To_Address (Self_Id); + end Set; + + ---------- + -- Self -- + ---------- + + function Self return Task_Id is + begin + return To_Task_Id (ATCB_Key); + end Self; + +end Specific; |