3b91d88ea1
* a-calend-mingw.adb: Add call to OS_Primitives.Initialize; * s-taprop-mingw.adb, s-taprop-vms.adb, s-taprop-solaris.adb, s-taprop-os2.adb, s-taprop-irix-athread.adb, s-taprop-linux.adb, s-taprop-hpux-dce.adb, s-taprop-irix.adb, s-taprop-tru64.adb, s-taprop-lynxos.adb: Move with clauses outside Warnings Off now that dependent units are Preelaborate. (Initialize): Call Interrupt_Managemeent.Initialize and OS_Primitives.Initialize to ensure proper initialization of this unit. Remove use of System.Soft_Links Make this unit Preelaborate. * s-stache.ads, s-taspri-vxworks.ads, s-taspri-mingw.ads, s-taspri-vms.ads, s-tasinf-solaris.ads, s-taspri-os2.ads, s-taspri-lynxos.ads, s-taspri-hpux-dce.ads, s-taspri-tru64.ads, s-tasinf-tru64.ads, s-tasinf-irix.ads, s-tasinf-irix-athread.ads, s-proinf-irix-athread.adb, s-proinf-irix-athread.ads, s-tratas.ads, s-tasinf.ads: Minor reformatting. Add pragma Preelaborate, since these packages are suitable for this categorization. Update comments. * s-traent-vms.ads, s-intman-dummy.adb, s-taprop-dummy.adb: Make this unit Preelaborate. * s-osprim-vxworks.adb, s-osprim-vms.adb, s-osprim-vms.ads, s-osprim-mingw.adb, s-intman-vxworks.ads, s-intman-vxworks.adb, s-intman-vms.adb, s-intman-mingw.adb, s-intman-vms.ads, s-osprim-unix.adb, s-osprim-os2.adb, s-osprim-solaris.adb, s-intman-solaris.adb, s-intman-irix-athread.adb, s-intman-irix.adb: Mark this unit Preelaborate. (Initialize): New procedure. Update comments. * s-taspri-linux.ads: Removed. * s-tpopsp-solaris.adb (Initialize): Create the key in this procedure, as done by other implementations (e.g. posix). * s-taprop.ads (Timed_Delay): Update spec since the caller now is responsible for deferring abort. Mark this unit Preelaborate. * s-taprob.adb, s-tarest.adb: Call System.Tasking.Initialize to ensure proper initialization of the tasking run-time. * s-tasdeb.ads: Mark this unit Preelaborate. (Known_Tasks): Add explicit default value to avoid elaboration code. * s-inmaop-vms.adb (Elaboration code): Add call to Interrupt_Management.Initialize since the elaboration code depends on proper initialization of this package. * s-intman.ads, s-inmaop-posix.adb, s-intman-posix.adb, s-osprim.ads, s-taprop-posix.adb, s-taspri-posix.ads, s-osprim-posix.adb: Make this unit Preelaborate. * a-calend.adb: Add call to OS_Primitives.Initialize * a-elchha.adb: Update use of Except.Id.Full_Name. Minor reformatting. Remove use of Ada.Exceptions.Traceback when possible, cleaner. * a-dynpri.adb, a-sytaco.adb, a-sytaco.ads: Move with clauses outside Warnings Off now that dependent units are Preelaborate. Use raise xxx with "..."; Ada 2005 form. * a-taside.ads, a-taside.adb: Remove some dependencies, to make it easier to make this unit truly Preelaborate. Rewrite some code to be conformant with Preelaborate rules. * g-os_lib.adb: Remove non-preelaborate code so that this unit can be marked Preelaborate in the future. * s-proinf.ads, g-string.ads, s-auxdec.ads, s-auxdec-vms_64.ads: Make these units Preelaborate. * s-exctab.adb: Update use of Except.Id.Full_Name. * s-soflin.ads, s-soflin.adb: Mark this unit Preelaborate_05. (Set_Exc_Stack_Addr_Soft, Get_Exc_Stack_Addr_NT, Set_Exc_Stack_Addr_NT, Set_Exc_Stack_Addr): Removed, no longer used. Remove reference to *Machine_State_Addr*, no longer needed. * s-stalib.ads: Mark this unit as Preelaborate[_05]. (Exception_Data): Full_Name is now a System.Address so that this unit can be made Preelaborate. Clean up/simplify code thanks to Full_Name being a System.Address. Remove obsolete pragma Suppress (All_Checks), no longer needed. * s-taskin.ads, s-taskin.adb: Move with clauses outside Warnings Off now that dependent units are Preelaborate. Make this unit Preelaborate. (Initialize): New proceduure, replace elaboration code and makes the set up of the tasking run-time cleaner. (Detect_Blocking): Now a function instead of a deferred boolean, to obey Preelaborate rules. * s-tassta.adb (Finalize_Global_Tasks): Remove Get/Set_Exc_Stack_Addr soft links, no longer used. * s-traces.ads, s-traent.ads: Add pragma Preelaborate, since these packages are suitable for this categorization. * s-solita.adb: Replace use of Ada.Exception by raise xxx with "..." since we compile run-time sources in Ada 2005 mode. (Timed_Delay_T): Call Abort_Defer/Undefer around Timed_Delay, to avoid having s-taprop*.adb depend on s-soflin and to avoid code duplication. Remove reference to *Machine_State_Addr*, no longer needed. From-SVN: r103847
110 lines
4.7 KiB
Ada
110 lines
4.7 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
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-- --
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-- 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 . --
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-- S P E C I F I C --
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-- --
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-- B o d y --
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-- --
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-- Copyright (C) 1992-2005, Free Software Foundation, Inc. --
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-- --
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-- GNARL is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 2, or (at your option) any later ver- --
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-- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
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-- for more details. You should have received a copy of the GNU General --
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-- Public License distributed with GNARL; see file COPYING. If not, write --
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-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
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-- Boston, MA 02110-1301, USA. --
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-- --
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-- As a special exception, if other files instantiate generics from this --
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-- unit, or you link this unit with other files to produce an executable, --
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-- this unit does not by itself cause the resulting executable to be --
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-- covered by the GNU General Public License. This exception does not --
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-- however invalidate any other reasons why the executable file might be --
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-- covered by the GNU Public License. --
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-- --
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-- GNARL was developed by the GNARL team at Florida State University. --
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-- Extensive contributions were provided by Ada Core Technologies, Inc. --
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-- --
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------------------------------------------------------------------------------
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-- This is a version for Solaris native threads
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separate (System.Task_Primitives.Operations)
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package body Specific is
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----------------
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-- Initialize --
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----------------
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procedure Initialize (Environment_Task : Task_Id) is
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pragma Unreferenced (Environment_Task);
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Result : Interfaces.C.int;
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begin
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Result := thr_keycreate (ATCB_Key'Access, System.Null_Address);
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pragma Assert (Result = 0);
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end Initialize;
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-------------------
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-- Is_Valid_Task --
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-------------------
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function Is_Valid_Task return Boolean is
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Unknown_Task : aliased System.Address;
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Result : Interfaces.C.int;
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begin
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Result := thr_getspecific (ATCB_Key, Unknown_Task'Unchecked_Access);
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pragma Assert (Result = 0);
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return Unknown_Task /= System.Null_Address;
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end Is_Valid_Task;
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---------
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-- Set --
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---------
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procedure Set (Self_Id : Task_Id) is
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Result : Interfaces.C.int;
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begin
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Result := thr_setspecific (ATCB_Key, To_Address (Self_Id));
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pragma Assert (Result = 0);
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end Set;
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----------
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-- Self --
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----------
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-- To make Ada tasks and C threads interoperate better, we have
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-- added some functionality to Self. Suppose a C main program
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-- (with threads) calls an Ada procedure and the Ada procedure
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-- calls the tasking run-time system. Eventually, a call will be
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-- made to self. Since the call is not coming from an Ada task,
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-- there will be no corresponding ATCB.
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-- What we do in Self is to catch references that do not come
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-- from recognized Ada tasks, and create an ATCB for the calling
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-- thread.
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-- The new ATCB will be "detached" from the normal Ada task
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-- master hierarchy, much like the existing implicitly created
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-- signal-server tasks.
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function Self return Task_Id is
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Result : Interfaces.C.int;
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Self_Id : aliased System.Address;
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begin
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Result := thr_getspecific (ATCB_Key, Self_Id'Unchecked_Access);
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pragma Assert (Result = 0);
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if Self_Id = System.Null_Address then
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return Register_Foreign_Thread;
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else
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return To_Task_Id (Self_Id);
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end if;
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end Self;
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end Specific;
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